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revision 1.75 by jmc, Thu Jun 20 23:52:03 2002 UTC revision 1.1097 by jmc, Wed May 13 21:35:21 2009 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/exch2:
8     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
9       read parameter file "data.exch2" if it exists; otherwise try default regular
10       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
11     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
12       with new code (not to be used, just as a backup solution).
13    
14    checkpoint61n
15    o eesupp & mdsio (SingleCpuIO):
16      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
17        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
18        receive real*4 array (instead of real*8) to read/write 32.bit files.
19        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
20         and remove new mapping S/R)
21    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
22      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
23        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
24        when using exch2. Add S/R to map global io-buffer to global model array.
25      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
26    
27    checkpoint61m
28    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
29      and add 3 other S/R for other types (R4,R8,RS).
30      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
31    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
32     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
33     - reduce number of macro definitions (keep only those which are used);
34       can always call directly the corrresponding S/R if needed.
35     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
36       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
37     Fixed wrong type of arg in:
38       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
39       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
40     To fix: global_sum of var in common block is wrong (multi-threaded) in:
41       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
42     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
43    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
44      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
45    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
46    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
47      edges are closed (zero depth); might happen with "blank tiles";
48      for now, disabled if using OBCS.
49    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
50      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
51    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
52      to reduce length of 1.D array print in STDOUT.
53    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
54      + use 48 tiles (16x8): this will allow to test "blank tiles".
55    o start to test MPI + multi-threaded (change testreport to skip tests
56      where number of tiles do not match).
57    o genmake2: add option "-omp" to turn on Open-MP ;
58      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
59    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
60      and keep the original tile numbering. Note: compatible with old
61      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
62    
63    checkpoint61l
64    o Overlaps had been forgotten in calculating ijk keys : fixed
65    o fix cyrus makedepend for gcc 4.4
66    o experiment fizhi-cs-aqualev20:
67      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
68      and generate new output. Note: new output is much closer to the old
69      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
70      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
71    o pkg/fizhi:
72     - change to avoid indices going deliberately over array-bounds
73     - remove unnecessary MPI stuff
74     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
75     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
76       does not go over array-bounds and therefore returns reliable output.
77     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
78       this S/R has 4 output arguments, which are used inside "get_alarm";
79       when it is called with the same variable "ndum" in place of several
80       output arguments, this produces weird side effect inside "get_alarm"
81      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
82       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
83       address) and produces error.
84    o tools/gemake2: (March 27-29 2009)
85      with option "-mpi": link *_mpi files from "MODS" dir (this is what
86      testreport does).
87    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
88    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
89       update lab_sea.lsr & lab_sea.salt_plume results
90    o pkg/seaice:
91      Major overhaul of the LSOR solver: change discretization from original
92      finite differences to finite volume. The old routine is still in the
93      file seaice_lsr.F and can be turned on with the CPP-flag
94      SEAICE_OLD_AND_BAD_DISCRETIZATION
95      Along with this change, the discretization of the strain rates is changed.
96      The same flag turns on the old discretization in seaice_calc_strainrates.F
97      All verification experiments with seaice are affected (except for
98      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
99      results by setting the above flag.
100      Further changes involve changes in defaults:
101      - ALLOW_FLOODING is defined and turned on by default
102      - SEAICEadvSnow = .true. is now the default
103      - SEAICEadvSalt = .true. is now the default
104      - SEAICEadvAge  = .true. is now the default
105      - SEAICE_clipVelocities  = .false. is now the default
106                                         (as per J. Zhang's recommendation)
107      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
108        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
109      - seaice_growth: replace computation of UG by a simple copy from wspeed
110    
111    checkpoint61k
112    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
113      seaice_lsr: fixed a few metric terms,
114                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
115                  add more debugging diagnostics
116      seaice_evp: removed superfluous many metric terms of FV discretization
117                  of stress divergence
118                  affects lab_sea, lab_sea.hb87
119      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
120                  of stress divergence for non-evp solver
121                  (this part is not tested anywhere)
122      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
123                  they were effectively only half slip
124                  affects lab_sea.hb87
125      updated all relevant verification experiments (except lab_sea//output_adm.txt
126        which was left over, but fails at level 7 & 6)
127    
128    checkpoint61j
129    o pkg/seaice: turn a few hard wired parameters into run time parameters
130    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
131      time in seconds as promised by the usints in seaice_monitor and exf_monitor
132    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
133      that are not cubed-sphere grids
134    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
135    o pkg/ctrl:
136      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
137    o non-hydrostatic (calc_gw.F):
138      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
139      update output of exp. global_ocean.cs32x15.viscA4
140    o remove backward compatibility for thetaMin,phiMin
141      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
142    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
143      interpolated wind field not only for curvilineargrid=.true., but also
144      for a rotated grid (rotateGrid=.true.)
145    o pkg/exf: add capability to bypass interpolation for runoff
146      by setting yet another CPP-flag
147    o eesupp/src, B-grid exchange:
148      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
149    o autodiff
150      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
151      allows to switch to single-prec common blocks;
152      corresponding switch occurs in tamc.h, integer isbyte
153      TAF store directivs "byte" and "kind" seem equivalent;
154      Most tamc.h have been updated correspondingly.
155    
156    checkpoint61i
157    o autodiff:
158      fix autodiff_sore/_restore indices for obcs
159      (spotted by I. Hoteit, M. Mazloff)
160    o pkg/autodiff, pkg/ctrl:
161      Add flag to reduce all tapelev I/O to single-prec.
162      In data.ctrl set
163        doSinglePrecTapelev = .TRUE.
164    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
165      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
166    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
167      real fresh water flux (not yet)
168    o pkg/mdsio & rw:
169     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
170     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
171    o pkg/flt:
172     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
173       init_fixed & ini_varia.
174     - clean-up & simplify linear interpolation S/R:
175       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
176     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
177     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
178     - add vert. coordinate & horiz. indices to output files.
179     - change vertical position in initial condition, from index to depth [m].
180     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
181       (easier to get to a curvilinear grid) ; delX,delY no longer used.
182    o pkg/ggl90: a few modifications:
183     - fix bottom boundary condition, and interpolation of KappaE
184       near top and bottom
185     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
186     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
187     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
188    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
189      (maintain temporary backward compatibility, until next checkpoint)
190    
191    checkpoint61h
192    o pkg/diagnostics with "periodic averaging diagnostics":
193      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
194    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
195    o pkg/obcs: fix loop ranges for balancing code
196    o pkg/flt:
197     - improve criteria for finding which tile owns a float.
198     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
199    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
200      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
201      with ocean biogeo)
202    o pkg/flt:
203     - do some cleaning and fix the restart ;
204     - add output.txt in flt_example/results to get this pkg tested.
205    o genmake2: add an EXTENDED_SRC option and flag.
206       for now, cannot be turned on on command line (only through genmake_local)
207    o pkg/mdsio: read/write vector:
208     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
209     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
210       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
211     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
212      (drop to 4 digits matching for grad). But this test does not look very
213      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
214    
215    checkpoint61g
216    o pkg/flt:
217      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
218       + make OPTIONS file more standard.
219      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
220      - fix _BYTESWAPIO CPP-Flag
221      - standard reading of file-parameter "data.flt"
222      - fix argument list of S/R FLT_RESTART
223      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
224    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
225    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
226      a still unfixed compiler/optimization bug
227    
228    checkpoint61f
229    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
230      update results of global_ocean.cs32x15.icedyn test.
231    o move getcon.F from model/src to pkg/fizhi.
232    o pkg/exf: add parameter for extrapolation of temp up to the surface
233       and option to prevent negative evap (in bulk_largeyeager04 only).
234    o Prather Advection scheme: fix tracer conservation for divergent flow
235      (e.g., when using NonLin Free-Surface).
236    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
237    o gmredi (Visbeck-variable-K):
238     - add more parameters to Visbeck-variable-K.
239     - use a 5 points average for dSigmaR in Visbeck-K calculation
240       (more "homogenous": same stencil and same weights as in dSigmaH)
241     - update output of ideal_2D_oce experiment.
242    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
243      (#undef REAL4_IS_SLOW)
244     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
245       coordinate variable
246     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
247       (surface forcing fields), removes some of the functionality
248     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
249     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
250       probably not all: copy _RS surface flux fields to RL field before
251       calling DIAGNOSTICS_FILL
252     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
253       real*4 (CALL EXCH_*_RS) versions.
254     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
255       (generate new output).
256    
257    checkpoint61e
258    o gmredi (Visbeck-variable-K):
259      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
260      - change computation of Visbeck-K where Slope > Smax :        
261        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
262        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
263    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
264      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
265    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
266    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
267      does not become too large (to avoid precision problems in implicit-diffusion
268      solver); update ideal_2D_oce output.
269    o pkg ggl90:
270      - in ggl90_cal.F: compute only one set of visc/diff, used to
271        step forward TKE/T/S/momentum
272      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
273        have Prandlt =1)
274    o gmredi (fm07):
275      - add lower limit on Transition layer thickness + lower limit on 1/lambda
276      - allow to set few more params from data.gmredi
277    o pkg ggl90:
278          - add missing sqrt(2) factor in computation of mixing length
279            scale in ggl90_calc.F
280            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
281    
282    checkpoint61d
283    o adjoint modifs
284      - adapt to new field rhoInSitu
285      - allow to revert from StoreDynVars2D, StoreDynVars3D
286        to individual fields
287        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
288    o store 3-D (in-situ) density in commom block (DYNVARS.h)
289     - save 1 rho computation.
290     - no longer modify T & S inland when using down_slope pkg.
291    o gad_som : allow to switch to SOM advection for T & S without corresponding
292      pickup files (using new S/R: MDS_CHECK4FILE).
293    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
294      (for useSingleCpuIO to work in multi-threaded)
295    o pkg/shelfice:
296     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
297       with SHELFICEtopoFile in data.shelfice
298     - move code for reading ice shelf topography and modifying hFacC into separate
299       subroutines of the shelfice package
300     - separate initialisation of "fixed" and "variable" variables
301     - kTopC is not (yet) replaced by kSurfC, although this is possible
302    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
303    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
304      and rename:
305      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
306      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
307    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
308    
309    checkpoint61c
310    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
311      to add mass source/sink of fluid in the interior (3-D generalisation
312      of oceanic real-fresh water flux).
313    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
314    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
315    o new pkg: down_slope
316      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
317      - presently, modify T & S inland (dwnslp_calc_rho.F).
318        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
319      - implementation for ocean in P-coords not tested.
320      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
321    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
322      (to facilitate conversion of oceanic pkg to p-coordinate).
323    o change FIND_RHO to FIND_RHO_2D :
324      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
325    o new pkg: cheapaml
326    
327    checkpoint61b
328    o exch2:
329      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
330      - no longer depend on the order sequence (N,S,E,W).
331      - 3rd exchange no longer needed (tested with 24 tiles).
332      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
333      - exch_UV_A-grid readily available (but not yet tested).
334      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
335      (both are no longer needed) in exch_uv: no effect in forward run; but
336       get truncation error differences with adjoint exch.
337    o exch2:
338     - change index-bounds storage (moved from target to local tile,
339       more intuitive this way) ; rename/remove some variables.
340     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
341    
342    checkpoint61a
343    o exch2/matlab-topology-generator:
344      fix bug in index bounds for N-S internal exchange (hard to tell if this
345      had any effect on the solution).
346    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
347      is exceeded
348    o testreport: modify syntax of awk, so that it works also with
349      awk, and not only with nawk and gawk
350    
351    checkpoint61
352    o autodiff
353      Change default for TAF usage by removing argument '-nonew_arg'
354      This changes TAF subroutine argument list (ordering of active var.)
355      Omission of this flag leads to incompatibility w.r.t. TAMC
356      To restore TAMC-compatibility, need following modifs:
357      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
358      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
359      Tested TAF version is 1.9.22
360      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
361    
362    checkpoint60
363    --->>> This is the last checkpoint for which generating the adjoint
364    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
365    --->>> by default.
366    --->>> Future checkpoints will ommit this flag by default.
367    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
368    o pkg/grdchk: Add gradient check to etan0 perturbations.
369    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
370    o pkg/autodiff: more flexibility in zeroadj.
371      model/src: modifying do_oceanic_phys.F accordingly.
372    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
373    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
374      special setup of gmredi for which the adjoint is stable
375      enough for parameter optimization.
376    o bridging the gap between eddy stress and GM.
377      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
378          along with a change in CPP option (now ALLOW_EDDYPSI).
379      -> when using GM w/ GM_AdvForm:
380          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
381          is applied either in the tracer Eq. or in momentum Eq.
382          depending on data.gmredi (intro. GM_InMomAsStress).
383      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
384      The key modifications are in model/src/taueddy_external_forcing.F
385      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
386    
387    checkpoint59r
388    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
389      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
390      fix option to read coriolis(@ cell-corner) from files with CS-grid.
391    o pkg/mnc: add some attributes to standard 1D-coordinate variables
392    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
393      mass points, when using mnc for output
394      - add runtime parameter (missing_value, missing_value_int) to override
395        default (which is the value of getcon('UNDEF'))
396    o pkg/mnc: prepare mnc for the actual use of missing values with the
397      diagnostics package: small fix in mnc_cw_readwrite.template and more
398      initialisation of never used fields
399      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
400      versions
401    o pkg/thsice/thsice_ini_vars.F added default initial values so that
402      thermodynamics sea ice solver does not blow up when some initial fields
403      are missing.
404    o move from external_forcing_surf.F to ini_forcing.F
405      the p-coord. hack consisting in using pLoad to set phi0surf ;
406      update output of tutorial_global_oce_in_p (affected @ truncation level).
407    o Freshen up a bit hs94.1x64x5, notably:
408      remove rotationPeriod and tRef=5*0. (adjoint only), and add
409      exactConserv=.TRUE.
410    o pkg/generic_advdiff:
411      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
412      applies to files where Temperature & Salinity 2nd Order moments are used.
413    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
414      this uses a dynamically allocated internal state data structure
415      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
416      and requires a fortran 90 compiler
417    
418    checkpoint59q
419    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
420       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
421    o Refresh tutorial_global_oce_biogeo, notably:
422      - change bathymetry (put back seamounts in ACC, use hFacs)
423      - change EOS (POLY3 --> JMD95Z)
424      - use Bryan-Lewis vertical diffusivity
425      - use multidimensional advection
426      - remove old virtual virtual in dic pkg, now done through ptracer pkg
427      - change a couple of parameters in dic pkg
428    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
429    o pkg/obcs: change default to OBCSfixTopo = .true.,
430      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
431      - replace "debugMode" with "debugLevel .GE. debLevB"
432    o implementation of TAF directives for gchem,cfc,dic
433    o remove "exp5" (replaced by tutorial_deep_convection).
434    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
435      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
436      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
437      --> changes results in exp4, seaice_obcs
438    o tutorial_deep_convection :
439      update the set-up and increase resolution and domain size ; start
440      from pseudo initial conditions = output at t=120mn in order to see
441      something happening when running testreport.
442    o pkg/seaice: add os7mp as an advection scheme
443                  add check for advection schemes
444                  add a flag for restoring T and S underneath sea ice
445    o pkg/my82: add netcdf-support and diagnostics
446    o thsice pkg:
447      - Now hsMax limits snow height by turning it into ice following
448        flooding scheme (and now conserving energy)
449      - Slight rewriting of the formula in thsice_calc_thick.F
450      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
451      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
452    
453    checkpoint59p
454    o gchem / dic / cfc :
455      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
456      - add new parameter files: "data.dic" & "data.cfc" ;
457      - various re-arrangement in initialisation & header file ;
458      - fix tutorial_global_oce_biogeo for multi-threaded test.
459    o pkg/dic: test for "pickup_dic" file when restarting ;
460      if no pickup-file, can restart with a re-initialised pH (same as it did
461      before) providing pickupStrictlyMatch is set to False.
462    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
463      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
464    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
465      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
466    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
467     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
468       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
469    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
470       scheme to use for vorticty-term ;
471     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
472       (with default selectVortScheme, return to original discretisation)
473     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
474    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
475    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
476      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
477      also fix diagnostics VISCAHW & VISCA4W.
478    
479    checkpoint59o
480    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
481    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
482      move a few statemens out the main loop into separate loops
483    o pkg/shelfice:
484      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
485        (kg/m^2/s), does not break tests, because in verification/isomip,
486        rhoConstFresh=rhoConst (by accident)
487      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
488      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
489        new file model/src/seawater.F, so that they are available for all pkgs.
490      - convert potential temperature into in-situ temperature. This changes the
491        isomip tests => update tests
492    o add a flag writePickupAtEnd (default=true) to be able to suppress
493      writing a pickup at the last timestep
494    o tools/mpack-1.6 :
495      - disable automake (not working) and autoconf (not needed).
496      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
497        also cleaner with much less compilation warnings.
498    o pkg/profiles:
499      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
500      (for "less than 32 characters name" compiler requirement)
501    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
502      conditions that have a different sampling frequency than S/T/U/V obcs
503    o pkg/diagnostics (stats-diags):
504      - fix global Min/Max in case 1 processor get only empty tiles
505    o genmake2: replace (4 times)
506         make genmake_tc_1.o >> genmake_warnings 2>&1
507      with
508         COMM="$CC $CFLAGS -c genmake_tc_1.c"
509         echo $COMM >> genmake_warnings
510         $COMM >> genmake_warnings 2>&1
511      to make genmake2 always see the value of CC as specified in the optfile.
512    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
513      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
514      - modify verification advect_cs test to test SOM-advection on CS-grid.
515    o pkg/ctrl:
516      - Rewrite of ctrl_map_ini_ecco.F,
517        introducing a generic routine (ctrl_map_ini_gen.F).
518      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
519    
520    checkpoint59n
521    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
522      number in dedicate array "hdiag":
523      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
524        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
525      - many small changes (integer format) for large number of diagnostics
526      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
527        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
528    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
529      usingSphericalGrid, this allows to define the rotated grid coordinates
530      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
531      geographical coordinates according to the inverse of the rotation defined
532      by the Euler angles, so that Coriolis parameter and online-interpolation by
533      exf works with the geographical coordinates on XC/YC/XG/YG.
534      Naturally, this feature does not work with all packages, so some
535      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
536      profiles), because there the coordinates are assumed to be regular
537      spherical grid coordinates.
538    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
539      - introduce isopycnal diffusion coefficient control.
540    o tools/adjoint_options:
541      - additional control vector components.
542    o pkg/mnc: have mnc create marginally meaning full coordinate variables
543      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
544    o pkg/mypackage:
545      - add example of read/write pickup for state-var ;
546      - add entry points to the main code for state-vars diags & write-pickup.
547    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
548      transitions for useExfYearlyFields
549      - add new subroutine that determines the file to read from for
550        use*YearlyFields = .TRUE. and .FALSE.
551      - add a verification experiment to global_with_exf that tests
552        useExfYearlyFields with USE_EXF_INTERPOLATION defined
553    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
554      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
555      subroutines (which could be generated from a template, because they are
556      almost identical), for now they are included in obcs_prescribe_read.F for
557      simplicity
558    o pkg/exf:
559      - add a little more diagnostic to exf_interp_read (in analogy to
560        mds_read_field, can be turned off with debugLevel < debugLevA=1)
561      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
562        ugly but fast by unrolling short inner loops, inserting a unroll=8
563        directive in routine lagran, and splitting a loop and making do while the
564        outermost loop (the latter requires the intoduction of index arrays)
565    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
566    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
567      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
568    o verification/seaice_obcs: updated for restart test and latest options
569    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
570      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
571      for now this is only available for the C-grid code and also within
572      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
573    
574    checkpoint59m
575    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
576      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
577    o gad_som : fix flux output (& diagnostics) to have same units as other  
578      advection scheme fluxes (was previously multiplied by deltaT).  
579    o added verification/seaice_obcs both to test seaice open boundaries
580      and to provide an example matlab scrpt for generating them
581    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
582    o pkg/salt_plume: clean up salt_plume_frac.F to
583      remove redundancy in PlumeMethod 1 and 4
584    o pkg/kpp: added saltplume diagnostics
585    o pkg/obcs and pkg/seaice:
586      - do not set uice and vice to zero when OB*icefile are unspecified
587      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
588      - moved seaice tracer obcs after call to seaice_growth
589    o pkg/salt_plume: added various options for salt plume depth
590      criterion and for vertical distribution of the salt
591    
592    checkpoint59l
593    o pkg/ptracers: new version of ptracers pickup:
594      read meta file and write only fields which are needed to restart.
595      ( same logic as main pickup file ; also using pickupStrictlyMatch )
596    o pkg/seaice:
597      - add timescale for melting due to warm mixed layer as a means of
598        setting SEAICE_availHeatFrac more conveniently
599      - add a CPP-flag/runtime parameter check for flooding algorithm
600      - reformulated availHeat in seaice_growth.F to be independent of AREA
601    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
602      unit changes
603    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
604    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
605      SX vector computer.
606    o pkg/seaice:
607      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
608        seaice forcing fields can now be read only through pkg/exf
609      - removed some unused halos
610    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
611    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
612      or U/VICE from U/VWIND before computing U/VSTRESS
613    
614    checkpoint59k
615    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
616      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
617    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
618      all experiments pass when compile with un-initialised var. checking option.
619    o added pkg/salt_plume
620    o script to test restart (for now, in MITgcm_contrib/jmc_script)
621    o pkg/seaice: new read/write pickup version.
622      read meta file and write only fields which are needed to restart.
623      ( same logic as main pickup file ; also using pickupStrictlyMatch )
624    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
625    o lab_sea.hb87: modify the domain & update output.hb87.txt :
626      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
627      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
628      process. Fixed here by closing the domain at the Northern boundary.
629    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
630    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
631      a set of consecutive levels in/from a 3-D array.
632    o pkg/ptracers:
633      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
634      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
635    
636    checkpoint59j
637    o in pkgs: dic, obcs, offline, rbcs:
638      standard way to compute coeff. for time interpolation between 2 time reccords
639      which retains full precision (& make results less dependent on compiler).
640      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
641    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
642      packages instead of reading ice cover and wind speed separately
643    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
644     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
645      to allow to compile customized code before the update)
646    o cleaning-up:
647      - fix CPP instruction syntax in pkg/obcs
648      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
649        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
650      - fix some threads issue in IO parts.
651    o pkg/dic:
652      - add tons of "_d 0" (--> much better testreports !)
653       and then update outputs of tutorial_global_oce_biogeo
654    o pkg/mom_fluxform:
655      add a special version of momentum advection intended to conserve momentum
656      next to a bathymetry step or a coastline edge. (default = off = #undef)
657    o new read/write pickup version:
658      - for now, only implemented for main (mdsio) pickup file.
659      - write out only what is needed to restart; merge pickup_nh , pickup_ph
660        and main pickup together.
661      - read meta file; read only what is needed to restart; stop if a field
662        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
663        if it make sense (even if the restart is not perfect).
664      - if no meta file, assume that pickup to read corresponds exactly to
665        a pickup that would currently be written.
666      - read pickup written in the old format (until checkpoint59i) if it
667        recognizes an old meta file (no field-list).
668      - add a meta file in exp. which starts from a pickup: 2 cases:
669        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
670         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
671        b) a meta file describing the content of the associated pickup file
672         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
673    o pkg/mdsio & pkg/rw:
674      - new routine to read a meta file ; new set of routine to read
675        Multiple-fields file (with meta file).
676    o added open boundary conditions capability for seaice
677        HSNOW, HSALT, UICE, and VICE
678    
679    checkpoint59i
680    o adjoint:
681      * fix multiDimAdvection adjoint
682        (partial recomputation problem by TAF for fVerT(:,:,kDown)
683        and comlev1 size definition (maxpass vs. max. number of tracers)
684      * verification/global_ocean.90x45x15 adjoint now tests
685        NLFS and multiDimAdvection using DST3 (=30)
686      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
687    o pkg/kpp: add "_d 0" to real constant (if missing);
688      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
689      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
690    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
691      for internal parameters related to restart process (formerly from PARAMS.h)
692      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
693    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
694      as argument. (only atm2d & obcs write_pickup have not yet been updated)
695    o pkg/monitor:
696      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
697      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
698      - account for deep Atmosphere factor and density factor (anelastic)
699    o added open boundary conditions capability for seaice HEFF and AREA
700    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
701      thermodynamics
702      - requires a little reorganization, which affects the testreport results
703        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
704        so that now the conservative form is tested
705      - add a few comments
706    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
707    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
708    o add new diagnostics to seaice: advective, diffusive fluxes (only for
709      multidim-advection, for scheme 2 they are not filled) and transports,
710      thermodynamic growth rates
711    o change units of EmPmR (inside the code, + within coupling interface)
712      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
713      Affects results @ truncation level (cg2d match) and update output of
714       experiments: lab_sea(6), global_ocean.90x40x15(10),
715      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
716      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
717      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
718      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
719    
720    checkpoint59h
721    o pkg/exf:
722      - improve vectorization by moving if-statement out of loops in
723        exf_mapfields, exf_radiation
724      - exf_bulkformulae.F: introduce 2D fields and vectorize code
725    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
726    o testreport:
727      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
728        monitor & update offline_exf_seaice exp. output.
729      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
730    o pkg/seaice:
731      - bug fix in the evp solver: boundary conditions were affected be
732        masking of zMax/zMin (changes results)
733      - minor bug fix in boundary conditions in seaice_calc_strainrates
734        (changes results for no_slip)
735      - seaice_lsr.F: make interpolation of eta dependent on boundaries
736      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
737      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
738        stress formulation and no-slip boundary conditions
739    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
740      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
741    o pkg/seaice: a first HSALT time stepping equation has been checked in
742    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
743      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
744      without requiring DO-IF statements
745    o pkg/thsice:
746      use continuous power-law function for partition of energy between lateral
747      melting/freezing and thinning/thickening ; old code using step function
748      still available with #undef THSICE_FRACEN_POWERLAW
749      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
750    o testreport: change AD testing : check against results/output_adm.txt
751      using same scripts as for forward test.
752    
753    checkpoint59g
754    o adjoint testing: in preparation for changing testreport:
755      - output format: cost and grad written on separated lines
756      - ad output results in directory "results" (instead of "results_ad")
757    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
758    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
759    o pkg/ecco: allow user defined cost function contributions
760    o testreport:
761      Allow to choose (per experiment) the list of tested output variables
762       and the main variable (used to issue a pass/FAIL ) ;
763      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
764      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
765      Also modify printing of summary:
766       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
767       b) echo the list of tested variables in the individual summary.txt of
768          each experiment.
769    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
770      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
771      (but still depend on the tile decompostion of the domain).
772    o pkg/seaice: change a discretization detail to make the B-grid code
773      "more symmetric". This change is likely to remove all "ridges/leads" that
774      where quasi-aligned with the grid in B-grid solutions. It may also be
775      the solution to the stress coupling issues with the B-grid.
776    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
777      remove .cvsignore from input dir. (since testreport no longer run here).
778    o pkg/thsice:
779     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
780     - fix reshaping of sea-ice just after advection:
781       melt all the ice only if ice-volume is too small.
782     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
783       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
784     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
785    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
786      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
787    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
788      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
789      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
790      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
791      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
792      -> update output.txt
793    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
794     this affects truncation error: -> update output.txt of exp:
795      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
796      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
797    
798    checkpoint59f
799    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
800    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
801      a bounded range (in forward mode)
802    o pkg/ecco, ctrl, autodiff and mom_common:
803     internal parameter controls, completements of implementations
804    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
805    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
806      (not seem any difference in testing results).
807    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
808       at face corners.
809    o pkg/generic_advdiff:
810     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
811      loop range indices for computing vertical advection tendency
812      and do the calculation in the interior only (no overlap) ;
813      for now, only implemented for SOM advection (to save CPU time).
814     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
815    o exch2 adjoint
816      First set of changes:
817      - add exch2 hand-written adjoint templates
818      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
819        This will require cleanup in pkg/autodiff/*.F
820        (changed routines currently kept separate in verif. code/)
821      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
822        that used to hide exch2 or cubed-sphere specific code
823        (commented via 'cph-exch2')
824    o pkg/seaice
825      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
826    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
827       output of global_ocean.cs32x15.thsice .
828    
829    checkpoint59e
830    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
831      for B-grid vector (not yet tested) and C-grid vector (<- only used
832      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
833    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
834      (#ifdef ALLOW_SALT_PLUME)
835    o gather_2d/scatter_2d: removed halo regions
836    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
837      scheme and the corresponding test case (under front_relax dir). For now,
838      only available with Skew-flux form and not yet tested in realistic set-up.
839      adjoint: store directives updated, but gradient checks deteriorated,
840      so maybe GM/Redi adjoint is now broken.
841    o seaice adjoint
842      * add AREA, HEFF, HSNOW as control variable
843        (should not change lab_sea results)
844      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
845    o pkg/seaice:
846      * added computation of saltFlux in seaice_growth;
847        For time being, sea ice salinity is assumed constant
848        contribution of snow flooding to freshening of sea ice is neglected.
849        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
850        defaults to 0.0 in order to maintain backward compatibility.
851        Typical values for SEAICE_salinity are 4 to 10 g/kg.
852      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
853      * added SEAICE_availHeatFrac, which specifies fraction of surface level
854        heat content used to melt or grow ice
855      * commented out cap of HICE: it helps keep ice thinner
856      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
857      * applied OBCS T/S mask to HEFFM sea ice mask
858    
859    checkpoint59d
860    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
861     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
862     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
863    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
864     and change default value of parameter "GM_Small_Number";
865     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
866       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
867       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
868    o pkg/ecco: cost function when applying pkg/smooth to controls
869    o pkg/ctrl: add forcingPrecond run time parameter
870    o pkg/seaice:
871     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
872     - fix bug in metric terms of u-equation in LSR solver (implicit part),
873       changes verification/lab_sea
874     - rearrange implicit part of u-equation in LSR solver to make it easier to
875       read, understand, and debug. This causes changes at the truncation level.
876     - fix (serious) bug in the boundary conditions (sign error in the implicit
877       part) of the LSR solver. Changes all LSR results.
878     - fixed problem with HSNOW initialization to avoid thick snow when AREA
879       is initilized with small values - does not change lab_sea results.
880     - added HsnowFile initialization capability
881    o pkg/smooth: addition to model/src and pkg/ctrl so allow
882     initialization of pkg/smooth and application to control vector
883    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
884    o dependencies: pkg/profiles requires pkg/cal
885    o pkg/profiles:
886     - added option ALLOW_PROFILES_GENERICGRID
887         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
888         that interpolation information (grid points and coefficients) is provided
889         within the netcdf input files.
890         -> sample matlab scripts can be found in MITgcm_contrib/gael
891         that allow you to prepare netcdf input files.
892     - also modified: cleaner include statements, cleaner error print statements,
893       cleaner stops when error, and more tests of the netcdf input files consistency.
894    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
895    o pkg/seaice:
896     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
897       requires a new routine: seaice_diagnostics_fill.F
898     - make sure that seaice does not move if not forced (pressure replacement
899       method, Hibler and Ip, 1995), changes results
900     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
901     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
902       It is turned off by default (=-1.), because it changes the results.
903     - make it possible to read AREA from a file, too.
904    
905    checkpoint59c
906    o add S/R and diagnostics for oceanic mixed-layer depth
907    o move GMRedi call after all vertical mixing schemes (including KPP)
908    o pkg/thsice:
909     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
910      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
911    o pkg/obcs:
912     - bug fix for balance code
913    o pkg/seaice:
914      - allow values of SEAICE_elasticParm > 1
915      - add new parameter SEAICE_evpTauRelax as an alternative
916        to SEAICE_elasticParm
917      - make lsr boundary conditions free slip (by default), changes result
918      - add code for no slip boundary conditions for lsr
919      - set minimum of zeta to zero (and not 4e8) (changes results)
920      - add a cap on AREA after advecting AREA if seaice_growth is not called
921    o change calculation of Visbeck K:
922      - no longer depend on tapering scheme; instead, compute slope (limited
923        by GM_maxSlope). this is equivalent to what was comuted before with
924        clipping or linear tappering.
925      - fix vertical averaging (wrong by 1/2 level)
926      - leave the old version (but will not be maintained) within
927        #ifdef OLD_VISBECK_CALC / #endif
928      - update output of exp. ideal_2D_oce
929    o change error catch in calc_r_star to improve vectorization
930    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
931      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
932    o adjoint:
933      Re-organized adjoint checkpointing according to Matt Mazloff
934      (but with modifs/completions/cleanups)
935      Storing is now bundled into large arrays to optimized I/O
936      (and second step in cleanup of the_main_loop)
937    
938    checkpoint59b
939    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
940      - export/import (between ocean & coupler) fields needed for ocean DIC.
941    o pkg/seaice:
942      - get rid of three more exchanges seaice_calc_viscosities (required
943        different loop boundaries in seaice_lsr and seaice_ocean_stress)
944      - bug fix in seaice_ocean_stress (update of lab_sea required)
945      - reduce loop boundaries to necessary minimum also in seaice_evp
946      - go back to the old way of computing deltaC/Z as the adjoint likes that
947        better
948    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
949      passive tracer to an Age Tracer) + update output.txt
950    o pkg/exf:
951      - implement A-grid / C-grid selection for wind-stress input files.
952      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
953      for now, in exf_bulk_largeyeager04.F only :
954      - change implementation for case where windspeed + 2. components wind-stress
955        are read-in. AND use rhoConstFresh to convert evap.
956    o pkg/seaice:
957      - use correct EXCH_UV for wind-forcing (on A-grid).
958      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
959        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
960    o pkg/exf:
961      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
962      EXF_INTERPOLATION:
963      - merge global_with_exf/code version of exf_interp_read.F
964        to the main code ;
965      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
966        reading the file ; Important: This options needs to be defined to recover
967        previous code.
968        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
969      - no longer loose real*8 precision along the way when using exf_iprec=64.
970    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
971      - change discretisation of evp-solver in order to avoid another exchange
972        (changes lab_sea) and clean up a little
973      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
974        help the adjoint (this also changes the results slightly)
975      - add a few "_d 0" where they had been missing in seaice_evp.F
976      - cleaning up: remove unused seaice_calc_rhs.F
977    o pkg/exf: some cleaning-up:
978      - change various "constants" into runtime parameters
979      - cleaned-up Large&Yeager04 routine which should eventually
980        replace exf_bulkformulae.F (changed names of S/R and CPP)
981        and merged various ALLOW_ATM_WIND options
982     only used with thsice pkg (in thsice_get_exf.F):
983      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
984        which are used when useStabilityFct_overIce=TRUE (= the default)
985      - change default values of ice & snow emissivity and scale downward LW
986        by ice & snow emissivity.
987    o pkg/thsice:
988     fix few little problems, in thsice_calc_thickn.F:
989      - growth vertically (and not laterally) if iceFrac == iceMaskMax
990      - melt only laterally if hIce < hThinIce (as the comments say)
991      and in thsice_extend.F:
992      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
993      - start to form ice as soon as the minimum ice-volume is reachable.
994     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
995      and cpl_aim+ocn
996    o pkg/kpp
997     - move computation of surface related input fields to KPP into a new
998       subroutine kpp_forcing_surf.F
999     - remove wrong (within bi,bj loops) EXCH calls.
1000     - little cleaning (add argument myThid in last position, cvs header ...)
1001     - for now, fix conservation problem by exchanging KPPviscAz (may not
1002       be the best fix)
1003    o pkg/seaice
1004     - check for inconsistent evp parameter/cpp-flag combination
1005     - remove leftover errIO flat for obsolete name list error handling
1006    o OpenAD
1007     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1008    
1009    checkpoint59a
1010    o pkg/seaice: some parameter clarifications and a little bit of clean up
1011    o pkg/thsice: rename run-time parameters:
1012       himin       -> hIceMin
1013       himin0      -> hThinIce
1014       hihig       -> hThickIce
1015       i0          -> i0swFrac
1016       transCoef   -> bMeltCoef
1017       frac_energy -> fracMelting
1018      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1019       with default values (for now) that do not change the results.
1020      remove old version of thsice vars advection in pkg/seaice.
1021    o in FFIELDS.h:
1022      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1023      - make pLoad & sIceLoad always available (but still only used if
1024         ATMOSPHERIC_LOADING is #define).
1025    o pkg/kpp: replaced _KPP_RL with _RL
1026    o bug fixes for vertical diffusivity computations when both KPP and
1027        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1028        are no longer updating the vertical diffusivity array
1029        (passed as argument) but are (re-) setting those arrays.
1030    o pkg/seaice: fix bug in evp solver, while doing that
1031      - change (improve?) discretization of stress computations for both
1032        cgrid-lsr and evp solver
1033      - add a new routine to compute strain rates
1034      - the above changes lab_sea results
1035      - add no slip conditions for evp solver (off by default), lsr-version
1036        may follow
1037      - fix exchange for shear at Z-points (does not change lab_sea)
1038      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1039        (to force the user to pick a time step since there is not "safe" way
1040        of choosing it)
1041      - add principal stress diagnostics
1042      - rearrange fields for evp a little to avoid having to call a: too many
1043        exchanges and b: exchanges for stress trensor components which we do
1044        not have.
1045      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1046        of evp, complete rewrite for lsr case (latter is does not yet work
1047        in all cases)
1048    o pkg/kpp: add code to have mixing in shelf ice caverns
1049      - add myThid to all kpp routines (long overdue)
1050    
1051    checkpoint59
1052    o pkg/exf:
1053      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1054        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1055      - move exf header files from lower_case.h to UPPER_CASE.h ;
1056        add missing cvs Header & Name
1057      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1058      - add namelist param. selectStressGridPosition, exf_monFreq
1059      - retire many _CLIM routines, and remove data.exf_clim
1060        + params moved to data.exf
1061        + climsst, climsss now handled by exf_set_gen, i.e.
1062          climss?period=0 refers to constant field,
1063          climss?period=-12 to monthly forcing
1064      - split up namelists in data.exf
1065    o pkg/seaice:
1066      - remove seaice_exch and seaice_exch_uv
1067      - remove superfluous exchange of theta
1068      - add myThid to seaice_budget_ocean/ice
1069      - add new interface for atmospheric wind forcing (C-grid only)
1070        + new routine
1071        + two new field (taux, tauy for stress over ice)
1072        + removed one global field (DAIRN) for C-grid case only
1073    o pkg/thsise
1074      - 2nd set of modifs for thsice adjoint in conjunction with exf
1075    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1076    
1077    checkpoint58y_post
1078    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1079      vertical diffusivity, similar to that in MOM4; turned on using
1080      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1081      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1082    o Added capability for 3D specification of background vertical diffusion
1083      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1084      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1085      "data" file that contains the 3D vertical diffusivity coefficients.
1086    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1087      - add code within pkg thsice to advect & diffuse sea-ice fields
1088      similar to (and will replace) what has been added in  seaice_advdiff.F,
1089      but: - conserving Mass, Heat & Salt.
1090           - better when using non-linear advection scheme (not yet fully tested)
1091           - can also be used in atmospheric set-up (for now, only the diffusion).
1092    
1093    checkpoint58x_post
1094    o IO option for global-file compact format:
1095      - add options when generating topology (utils/exch2/matlab-topology-generator)
1096      - add I/O capability (pkg/mdsio).
1097      - adapt utils/matlab/rdmds.m to read this format.
1098      for now long-line format not yet supported by pkg/mdsio (& exch2).
1099    o shelfice: add a few diagnostics
1100    
1101    checkpoint58w_post
1102    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1103      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1104      (and replace horiVertRatio in NH code).
1105      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1106                         and tutorial_plume_on_slope (sensitive to truncation)
1107    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1108      directly to drive seaice model (C-grid only)
1109    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1110     - reintroduce computation of wind from stress,
1111     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1112       mass points to avoid tau = 0
1113     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1114    o rdmnc.m: make it work with "global" files created with gluemnc
1115    o rdmnc.m : some improvements in dealing with singleton dimension
1116      (tested on all testreport mnc output files).
1117    o genmake2: disable pkg/profiles if netcdf test fails.
1118    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1119    o move call to cal_readparms up to make calendar parameters/variable available
1120      to all packages
1121    
1122    checkpoint58v_post
1123    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1124      useDynP_inEos_Zc tested.
1125    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1126    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1127      and portions thereof.  See read_cs.txt for description and examples.
1128    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1129      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1130      following the great-circle arc between those 2 points.
1131    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1132      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1133    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1134     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1135     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1136     - still needs work (not working with some options ; efficiency to improve)
1137       and serious testing.
1138     - use this scheme for temperature & salinity in 2 advection test exp.:
1139       advect_xy & advect_xz, respectively.
1140    
1141    checkpoint58u_post
1142    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1143    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1144    o testreport: add option "-skipdir" to skip some test.
1145    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1146      momentum calculation.
1147    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1148    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1149      remove checkpoint.F and the_correction_step.F (no longer used);
1150      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1151    o add option (linFSConserveTr) to correct for tracer source/sink due to
1152      Linear Free surface
1153    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1154    o pkg/thsice: fix reading mnc-pickups
1155    
1156    checkpoint58t_post
1157    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1158    o pkg/mdsio:
1159     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1160       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1161       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1162     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1163     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1164       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1165     - new S/R (to replace MDSWRITEMETA), which allows to write more
1166       informations (variable names, time ...) to meta files.
1167     - modify rdmds.m to give back the meta file content.
1168    o pkg/diagnostics: change vertical interpolation to be safer, and more
1169       flexible (define p-levels to interpolate to in data.diagnostics);
1170      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1171       diagnostic pointer.
1172    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1173    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1174    o fix multi-category seaice:
1175     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1176       SEAICE_MULTICATEGORY
1177     - fix short wave heat flux
1178    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1179       and allow to use EVP solver. Change forward lab_sea: test both EVP
1180       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1181    o Initial check-in of lab_sea adjoint
1182      (very similar to natl_box_adjoint/code_seaice)
1183      * used C-grid and EVP solver
1184      * used KPP, GM/Redi
1185      * uses inAdExact=.TRUE.
1186      * gradient checks fail for both ADM and TLM
1187        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1188        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1189        issue is related to forward mismatch between g77 an ifort
1190    o pkg/seaice: overhaul of thermodynamics
1191     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1192     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1193     - move a few global fields out of SEAICE.h into seaice_growth.F and
1194       make them 2D (FICE/QNETO/ ...)
1195     - remove FO (it is the same as QNETO)
1196     - introduce a few local fields to avoid modifying external fields such
1197       as atemp, etc.
1198    
1199    checkpoint58s_post
1200    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1201      changed exf_set_gen.F so that
1202        genperiod=0 means input file is one time-constant field and
1203        genperiod=-12 means input file contains 12 monthly means
1204    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1205      this affects truncation error ; generate new output file for exp. which
1206      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1207        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1208        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1209        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1210        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1211        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1212    o start implementation of deep-atmosphere and anelastic formulation
1213    o verification: remove 2nd copy of input files and use script "prepare_run"
1214      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1215    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1216    o profiles: fix for multithreaded case
1217    
1218    o diagnostics: rename few diags:
1219      s/'PRESSURE'/'RCENTER '/g
1220      s/'TICE    '/'oceFreez'/g
1221      s/'TAUX    '/'oceTAUX '/g
1222      s/'TAUY    '/'oceTAUY '/g
1223      s/'SWFLUX  '/'oceQsw  '/g
1224      s/DIFx/DFxE/g
1225      s/DIFy/DFyE/g
1226      and add few ocean-forcing diagnostics:
1227      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1228    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1229      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1230      as actual snow thickness.  It now refers everywhere to effective snow
1231      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1232    
1233    checkpoint58r_post
1234    o modifications to pkg/seaice/growth.F, which change results of
1235      lab_sea experiment: fixes pertain to melting snow over open water, to
1236      masking EVAP under sea ice, and to using the correct AREA variable for
1237      computations of EVAP, PRECIP, HSNOW, and GHEFF
1238    o add ability to read bathy, salt, and theta using MNC (off by def)
1239    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1240      both are turned off by default and do no change any results
1241    o seaice advection with pkg/thsice: a step toward the use of non-linear
1242      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1243    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1244      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1245      in natl_box (affects results @ truncation level: update output.txt)
1246    o multi-threading and IO:
1247      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1248      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1249        (needed to work with SingleCpuIO): tested in all verif. exp.
1250    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1251      affects the results (but none of the verification test uses this scheme).
1252    o Adding some pkg/diagnostics capability to pkg/seaice
1253      (will certainly be subject to changes)
1254    o ctrl: adding new control variables:
1255      lwflux, lwdown, evap, snowprecip, apressure, runoff
1256    
1257    checkpoint58q_post
1258    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1259      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1260      high_res_cube configuration by 4% on Columbia.
1261    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1262      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1263      dynamical allocation (seems to work in multi-threaded).
1264    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1265      single CPU io) so that TAF does not have to see EESUPPORT.h
1266    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1267    
1268    checkpoint58p_post
1269    o obcs: stop if obcs is used with useCDscheme = .true.
1270    o shelfice:
1271     - fix a sign error so that no slip at shelfice interface works
1272     - remove stop for combination non-hydrostatic code and shelfice. That does
1273       not mean, that the results are correct, but at least they are numerically
1274       stable
1275    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1276    o added adjoint exch routined for all exch*3d* routines
1277      and updated flow directives
1278    
1279    checkpoint58o_post
1280    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1281      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1282    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1283      and clean-up reading/writing of pickup files.
1284    o fix local version of read/write pickup (NH part) in rotating_tank/code
1285    o simplify EXCH interface:
1286     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1287     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1288    o added the regrid package
1289    o shelfice:
1290     - add a simple boundary layer scheme to reduce noise
1291     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1292    
1293    checkpoint58n_post
1294    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1295       local variable (not in common block).
1296    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1297      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1298      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1299        to work with SingleCpuIO.
1300    o add "_d 0" to real constant of pkg/cfc subroutines ;
1301       update exp. cfc_exemple & tutorial_cfc_offline output files.
1302    o multi-threading and IO:
1303      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1304        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1305      - barrier before and after reading.
1306      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1307      - avoid using MDS_WRITELOCAL for LAND pkg output.
1308      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1309        common-block variables ; Allows multi-threading with master-thread IO.
1310    o change default MAX_NO_THREADS from 32 to 4 ;
1311      and stop cleanly when MAX_NO_THREADS is too small.
1312    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1313    
1314    checkpoint58m_post
1315    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1316       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1317    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1318       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1319       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1320    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1321        add MITgcm_tutorials (= code + all the tutorials)
1322    o ecco, option to compute cost for total ssh (mean+anom)
1323    o consistent with addition of ptracer and ssh in pkg/profiles
1324    o profiles: adding ptracer and ssh
1325    o testreport: change multi-test output-file name
1326      (from output.txt.{name} to output.{name}.txt)
1327    o profiles: now ok for mutli-tiles case
1328    o seaice: add 4 parameters for different advection schemes for area,
1329      (effective) seaice thickness, enthalphy, and snow height. Their default
1330      is the standard parameter SEAICEadvScheme
1331    o calc_gw:
1332     - add cosFacU in zonal viscous flux (harmonic.visc.).
1333     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1334       of tutorial_plume_on_slope.
1335    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1336    o calc_gw: true flux-form, account for horizontal grid spacing.
1337      update rotating_tank results, but not plume_on_slope (affected at
1338      truncation level, 11 digits).
1339    
1340    checkpoint58l_post
1341    o calc_gw:
1342     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1343     - remove side-drag for now (need to fix it); update plume_on_slope results.
1344     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1345    o commit code to make SST/SSS weights spatially variable
1346      (based on either variable in-situ or variable initial T/S weights)
1347    o pkg/ecco:
1348      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1349        now based on horizontally varying weights wthetaLev, wsaltLev
1350      * cost_averagesflags now returns year indices in addition to day, month
1351      * sflux balance is performed on annual basis
1352        (sflxumm, sfluxmm2, bal_sfluxmm)
1353      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1354        including separate counting and multipliers
1355    o pkg/rbcs
1356      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1357    
1358    checkpoint58k_post
1359    o testreport:
1360     - always build in dir. "build" (if not there, mkdir build instead of building
1361       & running in input)
1362     - run in dir run (if it exists), in build otherwise.
1363     - call prepare_run (if input/prepare_run exists)
1364     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1365    o pkg/exf modifications to interpolation and rotation routines for more
1366       reasonable treatment of North Pole singularity: for tracers North Pole
1367       value is set to northernmost zonal-mean value, for zonal velocity it is
1368       set to zero, and for meridional velocity it is set to northernmost value.
1369    o pkg/exf/exf_check_range.F
1370     - add tile index to diagnostics and move stop statement to the very
1371       end of the routine.
1372    o pkg/diagnostics: (diagnostics_main_init.F)
1373      define title of isomorphic variables according to the current config.
1374    o pkg/thsice with pkg/seaice dynamics:
1375    - fix domain of computation (interior only, required for exf) and do exchanges
1376    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1377    o towards a standard way of dealing with multi-threading in MONITOR
1378      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1379    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1380       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1381    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1382    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1383    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1384       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1385    o tracer advection:
1386     - clean-up and simplify calc_common_factors.F
1387     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1388       advection subroutine (but still not used within DST advection S/R)
1389    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1390    
1391    checkpoint58j_post
1392    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1393      from file (collects calls previously in FORWARD_STEP)
1394    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1395    o adjoint store dir. adjusted accordingly
1396    o genmake2
1397      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1398    
1399    checkpoint58i_post
1400    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1401      on wind stress (SEAICEstressFactor defaults to 1.)
1402    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1403      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1404    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1405      on CS-grid: no longer loosing mass.
1406    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1407    o pkg/ggl90: fix sloppy output and fix a bug
1408    o pkg/seaice: added SEAICEuseEVPpickup parameter
1409      - Set to false in order to start EVP solver with
1410        non-EVP pickup files when using SEAICEuseEVP
1411      - fix sign error in diffusion in seaice_calc_rhs
1412    
1413    checkpoint58h_post
1414    * Modifications for bottom topography control
1415      o replace hFacC by _hFacC at various places
1416      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1417      o add non-self-adjoint cg2d_nsa
1418      o update autodiff support routines
1419      o re-initialise hfac after ctrl_depth_ini
1420      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1421    * Adding verification for 5x5 box (4-layer) bottom topography control
1422    
1423    checkpoint58g_post
1424    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1425       used for mean seasonal cycle, mean diurnal cycle); add an example
1426       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1427    o pkg/ggl90:
1428      - add parameter (minimum surface kinetic energy)
1429      - fix bug (avoiding division by zero)
1430    o couple pkg/thsice to pkg/seaice:
1431      - modify advection in seaice to accomodate new scalar fields to be advected
1432      - only muliDimAdection scheme work with seaice/thsice
1433      - mapping of thsice-variables to seaice-variables, back and forth
1434      - does not break the verification experiments, but does not give the
1435        desired results either
1436    o pkg/seaice
1437      - make (default) second order advection a bit less confusing?
1438    
1439    checkpoint58f_post
1440    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1441      to pkg/seaice):
1442      - new routines thsice_map_exf and thsice_get_exf provide the interface
1443      - add an additional formal parameter to thsice_solve4temp
1444    o pkg/exf:
1445      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1446      - correct Stefan-Boltzmann constant
1447      - new parameter for longwave surface emittance
1448      - separate some stuff from exf_bulkformulae into new routines  
1449        exf_radiation, exf_wind
1450      - add new parameters and constants: longwave emissivity for ocean, ice
1451        and snow, evaporation parameters over ice
1452      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1453        either wind from stress or stress from wind
1454    o pkg/thSIce:
1455    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1456    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1457       and THSICE_CALC_THICKN
1458    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1459    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1460      to make debugging easier.
1461    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1462    o pkg/bulk_force:
1463      - clean-up comments and parameters ;
1464      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1465    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1466      generate new output for test-experiment: aim.5l_cs.thSI
1467    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1468      testreport accordingly
1469    
1470    checkpoint58e_post
1471    o SEAICE_CGRID adjoint done
1472    o R_STAR adjoint implemented.
1473      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1474      * need to sort out init. of h0facc, etc.
1475    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1476      to be able to use it in pure forward.
1477    
1478    checkpoint58d_post
1479    o upgrade simple test-experiment to tutorial example:
1480     step.1: duplicate the experiment and (step.2) will remove the old copy.
1481      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1482      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1483      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1484      tutorial_global_oce_biogeo    <- copy of dic_example
1485      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1486      tutorial_plume_on_slope       <- copy of plume_on_slope
1487      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1488      tutorial_global_oce_optim     <- empty for now (David ?)
1489      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1490     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1491    o correct a sign problem in cost_scat.F
1492    o obcs and ptracers: fix boundary conditions for advections schemes
1493      with larger stencil
1494    o thsice adjoint: start
1495    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1496      completeness
1497    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1498      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1499    o ptracers adjoint:
1500      * avoid extensive recomputatations
1501      * fix missing re-init. of gptr (missed by TAF)
1502    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1503      me to turn off the excessive output to STDOUT that this package produces
1504    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1505      and add those terms in Vector-Invariant formulation.
1506    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1507      if the control period (xx_hfluxperiod etc) is 0
1508    o in profiles pkg, clean routines and fix details
1509    o in ecco pkg, reading ssh data:
1510      fix problem in case the model does not start at iter0=0
1511    o fix mnc-pickup/restart for ptracers
1512    o new package prifiles:
1513      code to compute profile-based cost by Gael Forget
1514      (modifs in ecco, ctrl, autodiff)
1515    o Benign bug fix in initialization (spotted by M. Mazloff) of
1516      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1517    
1518    checkpoint58c_post
1519    o adjoint: finish NLFS adjoint and provide reference output in
1520      verification/global_ocean.90x40x15/results_ad_nlfs
1521    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1522      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1523      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1524      with SEAICE_CGRID defined.
1525    o move calendarDumps from "data" to "data.cal" and clean-up the code
1526      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1527    o add useEXF & useCAL flags (for now, set in hard-coded way)
1528    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1529      (were missing in NH mode, and wrong in quasihydrostatic mode).
1530      waiting for Chris updated version of calc_gw to add those CALLs.
1531    o fix bug in quasihydrostatic S/R ;
1532      add a test for this option: global_ocean.90x40x15.qshyd
1533    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1534      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1535    o add on/off flag useOffLine for package OFFLINE
1536    o seaice:
1537      - modify advection so that it works also on the C-grid
1538      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1539        problem in multi-tile runs with C-grid
1540      - add flags for clipping ice velocities and/or masking solver forcing
1541      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1542        C-grid solver
1543      - added a few comments to seaice_diffusion.F
1544      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1545        are now exclusive)
1546      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1547        required re-ordering the code a little:
1548       + make DAIRN global variable (defined in SEAICE)
1549       + move computation of the viscosities eta and zeta into a new separate
1550         routine (because I need to recompute them in seaice_ocean_stress.F)
1551    
1552    checkpoint58b_post
1553    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1554      update output.txt of exp. aim.5l_cs.thSI
1555    o various mnc cleanups and improvements:
1556      + shrink lookup tables by factor of ~4
1557      + better error reporting when running out of lookup space
1558      + able to handle longer path/file names (up to 500 chars)
1559    o adjoint:
1560      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1561      - TBD: "hidden" mom_vecinv recomp. in dynamics
1562    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1563     (allow to differentiate between forcing components using new integer flags:
1564      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1565     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1566    o ecco
1567      - enable trend removal from SSH anomaly obs.
1568    o adjoint
1569      - a fix for PmEpR when #undef EXACT_CONSERV
1570      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1571      - try to fix "hidden" recomp. in forward_step for NLFS
1572        (NLFS seems broken sometimes after I checked it in)
1573    o seaice:
1574     - add c-grid version of the dynamic solver:
1575       + three new routines that are the c-grid substitute lsr, dynsolver
1576         and ostres
1577       + put a few fields that were local to dynsolver into global common
1578         blocks, so that I can move the computation of stresses etc into
1579         seaice_lsr (saves coding but may break the adjoint).
1580     - replace more hardwired parameters by runtime parameters
1581     - add ice masks that mask the rhs of the implicit solvers where there
1582       is no ice (commented out in seaice_dynsolver, because i am not sure
1583       if this works properly), eventually this should replace the clipping
1584       of ice velocities in seaice_dynsolver to +/-40cm/s.
1585    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1586      include it only where its needed
1587    o move balancing of fluxes before the call of external_forcing_surf
1588    o seaice:
1589      - correct units of turning angles (now they are really in degrees)
1590      - move computation of GWATX/Y out of main routine into dynsolver
1591      - initialize GWATX/Y in seaice_init
1592    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1593      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1594    o seaice: add runtime flags for turning angles (default to zero)
1595    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1596      and trend from exf forcing and ctrl control adjustments
1597    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1598      (since checkpoint57x_post)
1599    o change the default rotation period to 86164.s = the Earth rotation
1600    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1601      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1602    o seaice advection: add code for choosing between the default (2nd order
1603      central differences) and multiDim advection schemes provided by
1604      pkg/generic_advdiff
1605    o seaice:
1606      - removed all references to SEAICE_GRID.h fields from
1607        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1608        (cubed-sphere configuration will change a little)
1609      - grid computations in seaice_init are obsolete now.
1610      - cleaned up code a little so that is easier to read (hopefully).
1611      - added new (better?) discretizations of default advection and diffusion
1612        (turn on with SEAICEuseFluxForm)
1613      - replace 1 in 3d global fields by kSurface in growth.F
1614      
1615    checkpoint58a_post
1616    o seaice:
1617      - bug fix in advect.F
1618    o shelfice:
1619      - separate shelfice load anomaly from pload (breaks with time
1620        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1621        Its default is 0., but it may be computed more cleverly from (unknown)
1622        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1623        done offline. A good approximation of the pressure load anomaly is
1624        necessary to avoid large initial adjustment processes underneath
1625        deep-reaching shelfice.
1626      - small fix in ISOMIP shelfice_thermodynamics
1627      - add more sophisticated thermodynamics of Hellmer (1989), this is
1628        now the default
1629      - give a few constants more intuitive names
1630    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1631      if bulk formulae are used in long integration (especially EmPmR). Turn
1632      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1633      if balancePrintMean, the imbalance that is substracted is printed to
1634      STDOUT.
1635    o fix bug (typo) in obcs_apply_eta.F
1636    o add a new package shelfice which enables us to model the circulation
1637      underneath shelf-ice with draughts of hundreds of meters.
1638     - works
1639     - to do: + include improved thermodynamics
1640              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1641                instead of new field kTopC
1642              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1643                instead of new field R_shelfIce and new code in ini_depth.F
1644                and ini_mask_etc.F?
1645              + adjust vertical mixing schemes?
1646    o seaice pkg:
1647     - add a cpp-flag to include a simple formula for a salinity dependent
1648       freezing point of sea water at the surface
1649     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1650       meridional stresses are now different (and hopefully correct)
1651    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1652       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1653       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1654    o pkg/diagnostics: add options and parameters for regional-statistics
1655       diagnostics ; define regions by reading a region-mask from a file
1656       (might add other options later)
1657    o pkg/bulk_force:
1658     - add option and parameters to use AIM surface-flux formulae.
1659     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1660       others forcing fields (defined in PARM05, parameter file "data") are loaded
1661       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1662     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1663     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1664     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1665       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1666     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1667    
1668    checkpoint58
1669    o add "--embed-source" option to genmake2 which, when the supporting
1670      tools can be compiled (as determined by genmake2) will turn on the
1671      embed_files package which then embeds the entire MITgcm source code
1672      (*.[fFhc] + Makefile) used for the build within the executable
1673      - requested by CNH but off by default
1674      - adds a paltry <9MB to the mitgcmuv executable in most cases
1675      - only writes the output when useEMBEDSRC in eedata is true
1676    o clean up 3-dim. relaxation codes:
1677      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1678      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1679      * Thanks to Tom Haine for testing!
1680    
1681    checkpoint57z_post
1682    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1683      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1684    o fix the pickup behavior for obcs in combination with ptracers
1685    o fix a bug in ptracers_external_fields_load
1686    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1687      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1688    o transfered surface NH pressure to eta field (if exactConserv).
1689    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1690         and update lab_sea output.txt file.
1691    o completing 3-dim. relaxation code: additional term
1692         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1693      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1694      * At compile time, in "EXF_OPTIONS.h" set
1695          #define  ALLOW_CLIMTEMP_RELAXATION
1696          #define  ALLOW_CLIMSALT_RELAXATION
1697      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1698          tauThetaClimRelax3Dim = 15552000.0,
1699          tauSaltClimRelax3Dim  = 15552000.0,
1700      * 3 cases:
1701          1) Use a constant-in-time 3-dim. field
1702          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1703          3) Real-time relax. to time-evolving prescribed field
1704    o Adding Laplacian-type smoothness constraint on
1705      initial and boundary (forcing) controls (ic, bc)
1706      * enable at compile-time via
1707        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1708      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1709      * Absolute scale somewhat unclear so far
1710      * no area weighting was included since no other cost term does so far
1711    
1712    checkpoint57y_post
1713    First step for a NLFS adjoint
1714    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1715    o new init. routines for calc_r_star, calc_surf_dr
1716    o still need to deal with ini_masks_etc
1717    o testreport seemed happy
1718    checkpoint57y_pre
1719    
1720    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1721    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1722    o add new offset feature to offline pkg (plus minor cleanup)
1723    o cfc fixes for final year of integration
1724    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1725      be in GCHEM_OPTIONS).
1726    
1727    checkpoint57x_post
1728    o fix testreport Pb in multiple test experiment.
1729    o cleanup our namelist syntax in verification:
1730      - make it more F95 standards compliant (some work still needed)
1731      - allows the vast majority of our tests to work with gfortran
1732    o Non-Hydrostatic:
1733     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1734     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1735    o Allow to apply AB on T,S rather than on AB(gT,gS):
1736     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1737     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1738       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1739     - need a "clever" read_pickup to restart from the other AB formulation
1740    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1741    o remove some unused variables (reduces number of compiler warnings)
1742    o adjoint
1743      * Disable useVariableViscosity for adjoint for time being
1744        (there are a number of extensive recomputations)
1745      * Initialize certain variables needed for adjoint
1746    
1747    checkpoint57w_post
1748    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1749                 fix the singleCpuIO RS version of MDSWRITEFIELD
1750       and add a WARNING if using globalFiles=T with multi-processors.
1751    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1752      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1753    o tracer advection scheme:
1754      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1755       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1756       was not very convenient).
1757      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1758       (further tests needed for the implicit DST & Flux-Limiter schemes).
1759    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1760      and sRef for convenience, handy, when you want to initialize
1761      ptracers in a large domain with a constant non-zero value. Also,
1762      untangle ptracers_init.F a little.
1763    
1764    checkpoint57v_post
1765    o change dome exp. to use variable viscosity in side-drag terms.
1766    o remove all the files from the cfc_offline test since they are now
1767      incorporated into tutorial_cfc_offline which has been producing
1768      identical results for a few days of testing
1769    o add new parameter: sideDragFactor to enable half-slip-side BC
1770      and change side-drag S/R to use viscosity from mom_calc_visc
1771      (can switch back by setting sideDragFactor=0.); affects results at
1772      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1773       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1774    o vorticity & strain are now computed without masking, to account for
1775      no-slip-side BC in variable viscosity calculation ; mask is applied
1776      anyway later on, before computing advection/coriolis terms.
1777    o modify exp4 to test new obcs support for reading from external files
1778      and for passive tracers
1779    o fix behavior of ptracers_monitor when monitor output is written to a
1780      netcdf-file; still not independent of monitor.F (writes in the same
1781      file).
1782    o change default value of tRef (put a uniform, meaningful value for ocean
1783      & atmos) and initialize sRef (was missing, as Martin mentioned).
1784    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1785      to be proportional to enstrophy dissipation length.  Thus,
1786       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1787      This is now consistent with Smagorinsky and with the manual.
1788    
1789    checkpoint57u_post
1790    o OBCS and PTRACERS: add open boundary support for passive tracers
1791      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1792        OB-values from file; this is not different from the way theta and salinity
1793        are treated
1794      - however, Orlanski-radiation conditions are not supported, and the model
1795        will stop if you use pTracers and Orlanski at the same time.
1796      - beefed up the rountine obcs_external_fields_load: now only those open
1797        boundary values are overwritten with values from files for which there
1798        are really files, otherwise the OB-fields remain untouched. This makes
1799        it possible to use different OBs at different ends of the domain (as
1800        with EXF)
1801    o reduce number of exch calls in shap_filt (s2).
1802    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1803      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1804    
1805    checkpoint57t_post
1806    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1807    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1808      same truncation, independent of the face number: affects affects several
1809      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1810    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1811      note that biharmonic viscosity + no-slip was not tested in any experiment.
1812    o fix bug in non-linear free-surf side-drag ; generate new output for
1813      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1814    o make mnc honor the writeBinaryPrec flag for most kinds of output
1815    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1816    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1817      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1818    o add brackets in multi-terms sum to get same truncation, independent of
1819      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1820      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1821    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1822      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1823      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1824      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1825      Suggested values of viscosity parameters found in mom_calc_visc.
1826      Many new viscosity diagnostics available.
1827    
1828    checkpoint57s_post
1829    o Add clearing-house for viscosity calculations, mom_calc_visc and
1830      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1831      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1832      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1833      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1834      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1835      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1836      ViscAhStrain and viscAhTension are now retired.
1837    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1838    o In response to JMC's bug report, genmake2 now ignores any soft-links
1839      that it finds in the *current* directory when searching for files.
1840      Soft-links found in any other source directories will still work as
1841      they did before.
1842    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1843      a C routine to unlimit the stack size
1844    o mnc-ify pkg/aim snapshot vars
1845    o mnc-ify pkg/land as requested by Daniel
1846    o various changes to mnc including:
1847      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1848      - output can now be grouped so that all files within a group
1849          change the ITER portion of their names in lock-step together
1850      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1851          and works with both EXCH1 and EXCH2 (but needs more testing)
1852      - writing works for all verification test cases w/ g77 on Linux
1853    
1854    checkpoint57r_post
1855    o make MNC variable initialization happen earlier
1856    o add diagnostics for (almost) each term of the momentum Eq.
1857    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1858    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1859    o remove MINIMAL_TAVE_OUTPUT option ;
1860      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1861    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1862      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1863    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1864    o add time-dependent SST, SSS control
1865    o cost terms in ecco/ modularized (new cost_generic.F)
1866    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1867    o new infrastructure for seaice model vs. obs misfits in seaice/
1868      * driver from the_main_loop.F is seaice_cost_driver.F
1869      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1870      * gradient check in Exp. 6a of natl_box_adjoint/
1871    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1872      (see README file)
1873    
1874    checkpoint57q_post
1875    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1876    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1877      - bug was reported by Jean-Michel and Ian Fenty
1878    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1879      update exp. cpl_aim+ocn output.
1880    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1881      Needed for high-res. runs with large global files
1882      to be able to limit tapelev size
1883    o Changed some tests for adjoint:
1884      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1885      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1886      * global_ocean.90x40x15/ back to default 3-level checkpointing
1887    o Modifications to enable scripted COMMON to MODULE conversion
1888      * verification/OpenAD/code/ has necessary scripts and description;
1889      * converts, compiles and runs successfully;
1890    
1891    checkpoint57p_post
1892    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1893    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1894      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1895    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1896    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1897      (was already the case for dissipation with mom_vecinv,
1898       and also the case for grad.PhiHyd when staggered-timeStep)
1899      This will allow to put dissipation out-off the AB time-stepping.
1900     Unfortunately, affects truncation error. Update output of exp. that "fails"
1901      (cg2d matching number) and leave the others for later: front_relax(10),
1902      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1903      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1904    
1905    checkpoint57o_post
1906    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1907      (2) its ready to be documented during the 20050801 DocFest
1908    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1909      for ideal_2D_oce and lab_sea on linux_ia32_g77
1910    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1911      in global1x1_tot/code_seaice_adj to access indices 32, 33
1912      (worth another tag)
1913    
1914    checkpoint57n_post
1915    o adding precip control xx_precip 32
1916    o adding swflux control xx_swflux 33
1917    o Replacing 10 forcing penalty cost routines by 1 generic.
1918    o Implementing partitioning in time-mean and variable adjustment
1919      for atmos. state.
1920    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1921    o in natl_box_adjoint:
1922      * updated exp 1 to 10
1923        (but does not have time-mean vs. variable split results yet)
1924    o updated global1x1/*_seaice_adj/
1925      to incorporate latest changes
1926    o enable useSingleCpuIO for mdsio vector routines
1927      (applies in particular to tapelev I/O)
1928    o removed inefficient K-loop in all active_file*control*.F
1929    
1930    checkpoint57m_post
1931    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1932      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1933    o pkg/exch2: filling of face-corner halo regions is optional
1934      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1935    
1936    checkpoint57l_post
1937     tag before updating tutorials (pre-release-2)
1938    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1939       for output and interpolation of input fields onto model grid)
1940    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1941       Affects results of exp. rotating_tank ; update output.txt.
1942    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1943          and taking the square quantity and/or using a fraction-weight field.
1944    o fix aim_diagnostics_init.F mate numbers.
1945    o add mnc output capability to diagnostics/diagstat and update
1946      our cvsignore files for the ACSII output generated
1947    
1948    checkpoint57k_post
1949    o lab_sea now uses diagnostics package and provides a suite of
1950      new EXF diagnostics output.
1951    
1952    checkpoint57j_post
1953    o exf
1954      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1955        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1956        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1957      * extended diagnostics output
1958        - now includes all EXF variables
1959        - hs, hl moved to common block
1960        - separate S/R for diagnostics, called after ctrl vector is added
1961        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1962        - EXFqnet contains true Qnet (i.e. includes qsw)
1963      * updated verif. lab_sea, global_with_exf
1964      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1965        to ensure that diagnostics sees a true EXFqnet
1966    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1967    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1968      several times with different frequencies.
1969    o mnc-ify the thsice package as requested by Daniel Enderton
1970      - the monitor--MNC output needs work
1971      - many attributes need to be added (most are currently blank)
1972    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1973      - many attributes need to be added (most are currently blank)
1974    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1975    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1976    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1977      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1978         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1979    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1980     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1981    
1982    checkpoint57i_post
1983    o Diagnostics package was changed: diagnostic allocation is now deactivated
1984      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1985    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1986      add 1rst Order upwind vertical Shear.
1987    o add a quick fix for A/B checkpointing in OFFLINE mode
1988    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1989      end-run around the C/Fortran linking horror in eesup/src/timers.F
1990    o added pkg/runclock: allows user to terminate run based on wall clock
1991    o added non-hydrostatic scaling parameter: nh_am2
1992    o pkg/my82: futile attempt to make results compiler-independent by adding
1993      some "_d 0", etc. no effect.
1994    o for mnc output, fill the 'T' coordinate var with myTime and create a
1995      separate 'iter' variable for iteration count
1996    o pkg/diagnostics:
1997      add new capability: output of Global/Regional & per-level statistics ;
1998      tested against monitor output (including land & thSIce) on various exp.
1999    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2000    
2001    checkpoint57h_done
2002      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2003      data.diagnostics, data.gchem, data.ptracers) is done.
2004    
2005    o pkg/diagnostics: prepare for Global/Regional statistics.
2006      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2007    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2008      and rename it: DIFFERENT_MULTIPLE
2009    
2010    checkpoint57h_post
2011    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2012    o pkg/diagnostics: change output frequency, now in seconds (instead
2013      of Nb of iterations). This requires to change data.diagnostics.
2014    checkpoint57h_pre
2015    
2016    o in mnc, let the user create the output dir if both mnc_outdir_date
2017      and mnc_outdir_num are false
2018    o add fflags() to pkg/diagnostics which allows one to specify, on a
2019      per-file basis, the file precision [default behavior is unchanged]
2020    o added diagnostics to pkg/kpp, including computation of mixed layer
2021      depth based on a temperature/density criterion
2022    o updated verification/natl_box to test the new pkg/kpp diagnostics
2023    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2024    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2025    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2026      not mnc -- this mistake was found by JMC and is now corrected
2027    
2028    checkpoint57g_post
2029    o add Adams-Bashforth 3rd Order time stepping:
2030      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2031      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2032    checkpoint57g_pre
2033    
2034    o make lambda[Theta,Salt]ClimRelax spatially varying
2035      (default remains spatially uniform constant based on tau)
2036    o added new control variables
2037      * init. uVel, vVel, etanN
2038      * lambda[Theta,Salt]ClimRelax
2039    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2040      (suggested by G. Forget)
2041    
2042    checkpoint57f_post
2043    o add parameter "baseTime" = model base time = time at iteration zero
2044      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2045      account for baseTime shift
2046    o move Coriolis arrays from PARAMS.h to GRID.h
2047    checkpoint57f_pre
2048    
2049    o mnc-ifying the seaice package
2050    o introduced an alternative length scale calculation for use in the limiting
2051      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2052    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2053    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2054      as well as grad(vort3).  Made it compatible with both approximate form
2055      for the cubed sphere and full form of these gradients.  Added flag
2056      useFullLeith to select between approximate and full form.  
2057    o add "d0" in getcon.F to reduce differences between compilers/platforms
2058      update output.txt of exp. fizhi-gridalt-hs
2059    o change port_rand funtion to allow to set the seed.
2060    o fix obscure MNC bug involving conversion between reals and integers
2061      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2062        new version is now more standards-compliant
2063    o adjoint-related modifications
2064      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2065      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2066      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2067    
2068    checkpoint57e_post
2069    o Adding eddy stress controls a la Ferreira et al.
2070    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2071    
2072    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2073      update output.txt of exp. fizhi-gridalt-hs
2074    o add more "Z" dimensions and associated coordinate vars to MNC
2075    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2076    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2077      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2078      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2079      months and years.  Requires pkg/cal.
2080    o diagnostics: add pickup functionality
2081      - off by default for backwards compatibility
2082      - current version only uses MDSIO -- MNC will be added
2083    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2084    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2085    
2086    checkpoint57d_post
2087    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2088    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2089      output from the diagnostics package
2090    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2091    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2092      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2093    o add coordinate variables to the MNC output from the diagnostics package
2094    o change MNC-flags default value: true when useMNC=TRUE
2095    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2096      the ability (off by default) to read the grid information using MNC
2097    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2098    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2099    o do snap-shot diagnostics at the middle of the time-interval (instead of
2100      at the end).
2101    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2102      new test for AIM with thSIce + slab-ocean
2103    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2104    o move state variable diagnostics to the beginning of the time step ;
2105      (note: still needs some work specially for snap-shot diagnostics)
2106      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2107    
2108    checkpoint57c_post
2109    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2110    o generate new output.txt files on faulks with g77 & the new -ieee option
2111    checkpoint57c_pre
2112    
2113    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2114      update output.txt of exp. global_ocean.90x40x15
2115    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2116      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2117    o add saltFlux(+File) forcing capability with periodicExternalForcing
2118    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2119    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2120    o improvements for the MNC output from DIAGNOSTICS:
2121      - correct handling of the unlimitied dimension
2122      - all dims now have associated coordinate variables
2123      - variables located at U, V, and Corner ("Z") points are now written
2124        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2125        *all* data points are output
2126    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2127    o added pkg/seaice/seaice_monitor.F
2128    o mdsio_readfield.F can now read files visible only to master MPI process.
2129    o pkg/seaice: some test code for ice-modified ocean stress
2130    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2131      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2132      spurious negative numbers for precipitation and humidity.  Will cause
2133      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2134    o pkg/ctrl/
2135      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2136        May be enabled via doPackDiag
2137      *  introduce z-scaling of
2138         + gradient (doZscalePack) and
2139         + control (doZscaleUnpack)
2140    o pkg/mdsio/
2141      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2142      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2143    
2144    checkpoint57b_post
2145    o simplify options in diagnostics_fill arguments (remove weird combinations)
2146    o fix MNC coordinate variables so that they now contain per-face index
2147      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2148      general, EXCH2 grids are only aligned to a "local" coordinate system
2149    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2150    o Implement instantaneous output within pkg diagnostics:
2151      setting a negative frequency in data.diagnostics produces
2152     "snap-shot" output (as opposed to time-average if freq > 0)
2153    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2154      NOTE: change ptracer diagnostics name: use 2 characters to work with
2155            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2156    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2157      becomes the coordinate variable for the 'T' dimension
2158    o add CF-style coordinate variables to MNC
2159      - just a first cut:  numbers are meaningless on the cubesphere and
2160        missing along the T axis but otherwise it works!
2161    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2162    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2163    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2164      this is based directly on what the model compute, so that the content of
2165      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2166    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2167    o clean up build options files for SunOS, in particular
2168      - remove -traditional from xmakedepend
2169      - change -xarch=v9 to -xarch=native for f77
2170      - restore use of make (not gmake)
2171      - add CC=gcc if using g77
2172    o changes per discussion of AM, JMC, & EH3 today:
2173      - move redundant "grid" variables out of "state" -- in preparation of
2174        creating proper CF-style coordinate variables and in recognition
2175        that any/all grid variables can be easily copied (eg. w/NCO) from
2176        the grid files into any of the other NetCDF files
2177      - *always* output grid variables with MDSIO (this will eventually be
2178        changed)
2179      - output MNC grid file if useMNC is true
2180    o every instance of _END_MASTER() has been found and replaced with
2181      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2182      preprocessors
2183    o re-arrange diagnostics pkg initialisation:
2184     - allow each package to extend the available diagnostics list
2185     - add some checking and fix small problems (multi-threaded, ...)
2186     - new S/R diagnostics_fill (replace fill_diagnostics):
2187       look through the short list of active diag. (instead of the long list)
2188       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2189    
2190    checkpoint57a_post
2191    o this set of changes restores TAMC compatibility
2192      tested for global_ocean.90x40x15 adjoint on trough
2193      (what a pain)
2194    
2195    checkpoint57a_pre
2196    o some modifs in tools/build_options for sunos
2197    o call ctrl_pack for ctrl at end for optimcycle=0
2198    
2199    checkpoint57
2200    o add horizontal bi-harmonic viscosity for vertical velocity
2201      - new parameter viscA4W (defaults to viscA4)
2202      - affects only non-hydrostatic code
2203      - to be done: no-slip lateral boundary conditions
2204    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2205    o implement Implicit Vertical advection for pTracers
2206    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2207      (implemented also for implicit vertical diffusion & advection)
2208    o OBCS: extend application of tracer open boundary conditions
2209      to a strip beyond the boundary of width Olx/Oly
2210    o add call monitor to TAF set of required calls (flow directives)
2211      and include in natl_box_adjoint
2212    o untangle a few ifdefs related to cost, ctrl, autodiff
2213      untangel a few ALLOW_ECCO_OPTIMIZATION
2214    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2215      (theta2, salt2 in ecco_cost_weights)
2216    
2217    checkpoint56c_post
2218    o OBCS as control variables
2219      - update ctrl_ad_diff.list, obcs_ad_diff.list
2220      - remove balance of obcs controls from default
2221      - fix index bug nobcs in ctrl_init
2222      - fix dummy fields filen in ctrl_pack
2223      - add dummy weights for obcs
2224    o lsopt: comment out fort.94 output
2225    o optim:
2226      - remove unnecessary header files
2227      - adjusted namelists
2228      - add xerbla.F to Makefile
2229    o exf:
2230      - multiple modifications of exf_check_range
2231      - unit change in exf_init_runoff from [m/year] to [m/s]
2232    o mdsio:
2233      - i/o-vector change debugLevel from debLevA to debLevB
2234    
2235    checkpoint56b_post
2236    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2237      is called from DO_THE_MODEL_IO
2238      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2239      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2240      - clean up PTRACERS_WRITE_TIMEAVE a little
2241    o add another verification experiment that tests both the cfc-pkg and
2242      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2243      reactive tendencies treated inline with regular timestepping
2244    o testreport previously did a lousy job of comparing small numbers, so
2245      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2246      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2247      testreport.
2248    o ptracers_monitor: bug fix for MPI
2249    
2250    checkpoint56a_post
2251    o GCHEM: finish reorganizating the package
2252      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2253        (introduces another 3D-array for each passive tracer, but only if
2254        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2255        gchemTendency is not needed because the timestep is done separately)
2256      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2257      - GCHEM is now---more or less cleanly---separate from PTRACERS
2258      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2259        so clear to me how that should be done in a general way.
2260    o CFC: improve formatting of output in CFC_ATMOS
2261    o PTRACERS:
2262      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2263        that ALL experiments with ptracers enable can be checked. This makes
2264        GCHEM_MONITOR obsolete.
2265      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2266        monitorFreq
2267      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2268    o add PTRACERS (PTR0[1-5]) to testreport output
2269    o exf_check_range:
2270      * default changed to .TRUE.
2271      * will check values for niter0 if debLevA, every timestep if debLevB
2272      * STOP in exf_check_range if 'out of range'
2273      * range chosen generous to allow for potential extema
2274      TBD: a version with stricter range
2275           permitted range would be runtime parameters
2276    o GMredi:
2277      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2278      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2279      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2280    o GCHEM:
2281      - move call to GCHEM_FORCING_SEP, so that it is now called before
2282        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2283      - introduced a useGCHEM runtime flag and applied it everywhere.
2284      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2285        this flag is now only visible within GCHEM-pkg routines.
2286      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2287        be replaced by a 3D array that is computed before thermodynamics; for
2288        this, the tracer ID iTracer had to be included into the parameter list
2289        of ptracers_forcing
2290      - set up forward_step to call gchem_forcing, that will replace
2291        gchem_forcing_int in ptracers_forcing
2292      - cleaning up
2293    o small cleaning of exch2: remove files that are also in eesupp/src
2294    
2295    checkpoint56
2296    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2297    o mnc: cleanup "full" files--fixes out-of-memory problem
2298    o ECCO-GODAE
2299      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2300      * fully merged and updated from SIO code
2301        windstress sign change affects
2302        - exf_inscal_[u/v]stress
2303        - sign of xx_tau[u/v] adjustments
2304        - signs in cost_scat
2305      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2306      * natl_box_adjoint updated and compressed
2307      * 2-level checkpoint switch added
2308        (tested in EXP. 1 of natl_box_adjoint)
2309      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2310    o SVD
2311      * first complete, non-hacked version for SVD calculations
2312      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2313        performed via direct access files admtlm_vector.it????
2314        (via ctrl_[un]pack)
2315      * optimcycle is used for ARPACK iteration counter
2316        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2317      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2318        and add linear transforms where necessary
2319      * controls are initial/final SST, SSS (can be extended; need to check
2320        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2321    o mdsio: filename info to both stderr, stdout
2322    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2323      from sign change
2324    
2325    checkpoint55j_post
2326    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2327      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2328    o add consistent build directories and .cvsignore files to verification
2329    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2330    o make all subroutines 30 or less characters in length for certain older
2331      compilers to work (a thorough search only turns up two routines in
2332      pkg/ptracers)
2333    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2334      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2335    
2336    checkpoint55i_post
2337    o change arrays for total vertical diffusivity (2.D if explicit,
2338      3.D if implicit) ; each ptracer uses its own background value.
2339    o added mnc/NetCDF output capability to ocn_compon_interf
2340      - added bits to verification/cpl_aim+ocn so that it can run on
2341        ITRDA and other clusters without the mpirun "-wd" option
2342    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2343      configuration
2344    o give MNC the ability to create additional files rather than
2345      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2346      - the default is just less than 2GB which is a practical limit
2347        on many systems
2348    o Compute the non-local term using either KPP vertical diffusivity (=default)
2349       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2350    
2351    checkpoint55h_post
2352    o add verification test "vermix"
2353    o remove all the *_ioinc flags and replace with the single global
2354      outputTypesInclusive flag
2355    o allow to set a vertical profile of vertical diffusivity for T & S
2356    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2357    o useMNC moved from data.mnc to data.pkg
2358    
2359    checkpoint55g_post
2360    o Renaming carbon AD experiments to comply with testreport conventions
2361    o Updating adjoint of Held-Suarez hs94.1x64x5
2362    o Fixing directives for non-ECCO forward_step, after ECCO directives
2363      have been fixed to avoid recomp. of do_oceanic_phys
2364      Works well for global_ocean.90x40x15,
2365      but recomp. issue remains for carbon
2366    o Updating adjoint output for natl_box_adjoint after
2367      pkg/ecco has been modified (see taga c55d_post)
2368    
2369    checkpoint55f_post
2370    o rename to timeave_init_fixed
2371    
2372    checkpoint55e_post
2373    o some delicate re-shuffle of store directives to avoid one
2374      extra call of do_oceanic_physics
2375      affects ecco_the_main_loop.F, do_oceanic_physics.F
2376      checkpoint_lev1_directives.h
2377    o NB: this may break global_ocean adjoint temporarily,
2378      but it is clear how to fix it. Will do later, need this now.
2379    
2380    checkpoint55d_post
2381    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2382    o ecco_cost_weights is modified to 1x1 runs
2383    o modifs to allow observations to be read in as
2384      single file or yearly files
2385    o enable to read exf forcing fields as either
2386      single file or yearly files (flag useExfYearlyFields)
2387    checkpoint55d_pre
2388    
2389    o switch between 2-level and 3-level checkpointing
2390    o add ability of MNC to write local and "partial" (eg. 2D slices where
2391      the full 3D field is never actually stored) arrays to NetCDF files
2392      with the correct (that is, the complete multi-dimensional) set of
2393      array indicies
2394      - used in mom_vecinv() to write the diagFreq output
2395      - tested (demonstrated) in verification/aim.5l_cs
2396    o further mnc-ification
2397      - add verification/lab_sea to the list with mnc setups
2398      - fix undefined mnc v-names in cd_code
2399      - add kpp to mnc output (both snapshot and timeave)
2400    o non-hydrostatic code
2401      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2402        in calc_gw.F
2403      - defaults to viscAh
2404      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2405        friction or Leith) in non-hydrostatic mode, as long as there is
2406        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2407    o pkg/cost
2408      extend simple cost functions to treat time mean quantities
2409      (T,U,V) via cost_accumulate_state from cost_tile
2410    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2411        be 2 times larger than the minimum size the advection scheme requires.
2412        now get a perfect conservation of salt in advect_cs test-exp (updated)
2413    o GGL90 (Gaspar's TKE mixed layer)
2414      - add horizontal diffusion of TKE, requires exchanges in
2415        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2416        default. In OPA there is no horizontal diffusion of TKE but the
2417        mixing coefficients are computed from a horizontal average of TKE of
2418        6 points or so. I think that diffusion has a little more physical
2419        justification.
2420      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2421        was in vain)
2422      - mask tke-variable in ggl90_init
2423    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2424    o fix biharmonic diffusion on CS-grid.
2425    o more obcs stuff
2426      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2427        for reading boundary values. This routine is called from
2428        obcs_prescribe_read
2429      - updated obcs_check
2430      - changed sponge layer relaxation parameter units for days to seconds
2431      - turned off sponge layer by default
2432      - changed argument list of OBCS_CALC to myTime+deltaTclock
2433      - fixed about 35 bugs in obcs_external_fields_load
2434    
2435    checkpoint55c_post
2436    o obcs stuff
2437      - new runtime flags useOBCSprescribe, useOBCSbalance
2438      - re-arranged obcs_calc
2439      - moved exf_getobcs to obcs_prescibe_read
2440        obcs_prescibe_read is called after ORLANSKI stuff
2441        and independent of it (executable can contain all).
2442      - updated obcs_check
2443      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2444        These may be necessary only if tangential velocities are
2445        prescribed at OB, not sure, needs testing.
2446    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2447      which simplifies the calls and passes the ifc check-bounds test
2448    
2449    checkpoint55b_post
2450    o add a 2D scalar, Z location, exchange_2 routine.
2451    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2452      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2453      affects advect_cs results (for the wrong reason): update output.txt
2454    o use a more standard discretization for biharmonic viscosity ;
2455     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2456      affects results of dome set-up: update output.txt
2457    o fix gad_advection.F (CubedSphere part), back to version 1.23
2458    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2459    
2460    checkpoint55a_post
2461    o merged code to
2462      * prescribe/read time-dependent open boundaries
2463        (works in conjunction with exf, cal)
2464      * sponge layer code for open boundaries
2465      * each boundary N/S/E/W now has its own CPP option
2466        (healthy for the adjoint)
2467    
2468    checkpoint55
2469    o up-to-date adjoint of previous breaks
2470      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2471      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2472      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2473      - carbon: * remove tr1-related adjoint verification
2474                * add ptracer as control variable
2475    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2476      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2477    
2478    checkpoint54f_post
2479    o in verification/carbin/ remove experiment related to
2480      ALLOW_PASSIVE_TRACER (array tr1 etc)
2481      code_ad/ input_ad/ results_ad
2482    
2483    o add two new packages
2484      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2485        + subject to optimization (memory)
2486      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2487        + subject to reordering (many GOTOs in the original code)
2488        + so far opps is called for every (i,j) point, and then operates in
2489          the vertical; one may want to reorder the scheme in order operate in
2490          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2491          fields)
2492    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2493      - all verification tests compile and run with linux_ia32_g77
2494      - defaults are compatible with current input files--nothing
2495        should change if you were not previously using MNC
2496      - MNC output has been added in numerous places (eg. timeave)
2497        but there are still a few writes not yet do-able with MNC
2498        (this is in progress)
2499      - flags now allow for either/or/both use of MDSIO and MNC and
2500        documentation will soon follow
2501      - numerous small formatting cleanups for ProTeX
2502    o add version info (via BUILD_INFO.h) to MNC and stdout
2503    
2504    checkpoint54e_post
2505    o add two new packages
2506      - pp81 (Packanowski and Philander, 1981), Richardson number and
2507        stratification dependent mixing
2508      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2509      - these scheme operate in a similar manner as KPP (without ghat, of
2510        course), however there is only one diffusivity that is used for both
2511        temperature and salinity (and passive tracers)
2512    o add offline package
2513    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2514      provided by Stephanie Dutkiewicz
2515    o genmake2: add ability to search for C compilers and cleanup test output
2516      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2517    
2518    checkpoint54d_post
2519    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2520    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2521      leading to additional shift by 5 days each year of integration
2522       (i.e. leading to considerable offset over the years)
2523    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2524    o start with no AB and no initial filtering (staggerTimeStep):
2525      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2526    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2527      (external loading & cpl import/export stay in forward_step.F)
2528    o update coupling interface to work with new staggerTimeStep
2529    o change MDSIO ptracers_pickup.
2530    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2531    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2532    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2533    
2534    checkpoint54c_post
2535    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2536      this affects (truncation error) output.txt of test-exp:
2537       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2538    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2539    o change Qnet to always be the net heat flux, (+upward).
2540      affects (truncation error) output of natl_box exp.: updated
2541    o define the max number of passive tracers in PTRACERS_SIZE.h
2542    o start to test mnc routinely in exp0
2543    o add sea-ice loading (sIceLoad) as a new forcing field.
2544    
2545    checkpoint54b_post
2546    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2547       impressive on Altix and Opteron systems)
2548    o diagnostics can now write NetCDF files through the mnc package
2549    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2550    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2551    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2552      affects (truncation error) output of lab_sea & natl_box exp.: updated
2553    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2554    
2555    checkpoint54a_post
2556    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2557    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2558    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2559    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2560      + internal_wave (shift in writing cg2d_ini_res)
2561    checkpoint54a_pre
2562    
2563    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2564      - modified verification/lab_sea and natl_box_adjoint accordingly
2565    
2566    checkpoint54
2567    checkpoint53g_post
2568    o prepare splitting of thermodynamics: store convect.counter in common block
2569    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2570      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2571    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2572    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2573    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2574    o restore adjointability
2575    
2576    checkpoint53f_post
2577    o modifications that affect AIM experiment results (update output.txt):
2578      - no advection of S at top interface Nr (pkg/generic_advdiff)
2579      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2580    o AIM pkg:
2581      - include stability function into surf.Flux derivative relative to Tsurf
2582      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2583    
2584    checkpoint53e_post
2585    o merged cylindrical coord configuration
2586    o added rotating_tank experiment
2587    checkpoint53e_pre
2588    
2589    checkpoint53d_post
2590    o faulks upgraded: re-generate output.txt that have changed:
2591       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2592    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2593    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2594    o added Sadourny discretization of Coriolis
2595      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2596      - re-enabled use of omega3 (useAbsVorticity)
2597    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2598      vector-invariant equations
2599      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2600    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2601      hopefully without new bugs
2602      - still to do: biharmonic friction for non-hydrostatic w
2603    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2604    o regenerated output for global_ocean_ebm (using -ieee)
2605    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2606      of mom_common/
2607      - simple re-arrangement of instructions within computing loop
2608    checkpoint53d_pre
2609    
2610    checkpoint53c_post
2611    o new version of coupler for AIM+thSIce and Ocean models
2612     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2613     - land: change Evaporation of snow
2614     - aim with thSIce: fix bug in snow-precip.
2615    o changes to calc_gw.F
2616     - bug fix for w^2 term near the bottom boundary
2617     - (hopefully) improve the lateral slip boundary condtions for use with
2618        partial/looped cells
2619      - because the bug fix changes two verification experiments anyway (exp5
2620        and plume on slope), change the lateral boundary condition from half slip
2621        to the value of no_slip_sides
2622    o ebm package wasnt quite up to the parallel task. Fixed that.
2623    o Adjoint of EBM package + verification
2624      * TLM OK
2625      * ADM not sufficient accuracy yet (needs further testing)
2626    
2627    checkpoint53b_post
2628    o Commiting new energy balance model to repository
2629      * package is pkg/ebm
2630      * verif. is verification/global_ocean_ebm
2631      * references are in ebm_driver.F
2632    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2633    C        Global thermohaline circulation. Part I:
2634    C        Sensitivity to atmospheric moisture transport.
2635    C        J. Climate 12(1), 71-82
2636    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2637    C        Global thermohaline circulation. Part II:
2638    C        Sensitivity with interactive transport.
2639    C        J. Climate 12(1), 83-91
2640    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2641    C        Destabilization of the thermohaline circulation
2642    C        by atmospheric eddy transports.
2643    C        J. Climate 7(12), 1870-1882
2644    o Will need long integration testing.
2645    checkpoint53b_pre
2646    
2647    o created pkg/mom_common in preparation for variable viscosity code
2648    o renamed and split ini_mnc_io
2649    o pkg/land: only liquid water can diffuse or run-off
2650    o AIM using land: soil wetness availability account for snow
2651    o added printMapIncludesZeros to EEPARMS namelist
2652    
2653    checkpoint53a_post
2654    o restore TAMC compatiility for exf_constants.h
2655      (no usage of _d in .h)
2656    o Additional storing in KPP in an attempt to fix
2657      TAMC problem with adjoint of KPP code.
2658      (no success...)
2659      Identical code works fine with TAF.
2660    o Fixed verification/natl_box_adjoint experiments.
2661      Initial conditions for Experiments 4 and 5 are now
2662      set to "SEAICE_initialHEFF=0", which is more reasonable,
2663      and hence gives results closer to that of Experiment 2.
2664      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2665    
2666    checkpoint53
2667    o stable checkpoint with up to date adjoint
2668      TLM tests only run for 1st grdchk at the moment. Its unclear if
2669      this is a code problem or a problem with resetting code for g_
2670      variables that is being autogenerated wrong.
2671      Otherwise:
2672       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2673       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2674         are both still in chaos following their security messes.
2675    
2676    checkpoint52n_post
2677    o various build (mostly genmake2) changes including:
2678      - ability to build/run more easily within Cygwin and MacOS X
2679      - more complicated Makefiles with a stronger dependence on Gnu Make
2680    o pkg/seaice modifications
2681      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2682        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2683        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2684      - changed proxy for geostrophic velocity and updated
2685        verification/lab_sea/results/* accordingly
2686      - removed ADI dynamic solver from pkg/seaice
2687      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2688        they caused a segmentation fault under certain circumstances
2689      - removed unused field WATR
2690    o bug fix in exf-package:
2691      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2692         now reflect that.
2693    o small fixes in the cal-package:
2694      - set reference date to first of January for the 'model'-calendar
2695      - failing of cal_CheckDate in cal_FullDate now actually results in a
2696        warning
2697    o small modifications in exf-package to increase flexibility:
2698      - change climtempfreeze from a constant to a runtime parameter that
2699        is specified in data.exf_clim (default = -1.9)
2700      - introduce runtime parameter windstressmax (default = 2.0) that is
2701        specified in data.exf
2702    o fix in pkg/thsice:
2703      - update Evap (Tsf changes) to be consistent with Latent heat flux
2704      - maintain snow precipitation unchanged (even if Tsf >=0).
2705     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2706    
2707    checkpoint52m_post
2708    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2709      this does not change any of the results, because myIter=0 in swfrac always
2710      lead to jwtype=2 (the default anyway), but the call makes little sense
2711      as a default
2712    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2713    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2714      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2715    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2716    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2717    o extending useSingleCpuIO option to work with new exch2 I/O format
2718      - old-style, missing-tile I/O is still accessible by defining CPP
2719        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2720    o monitor package can write to NetCDF files and/or STDOUT
2721    o fix re-definition bug in MNC_GRID_INIT_ALL()
2722    o doc/api_reference added
2723      - a framework for building an API Reference Manual using all
2724        the "protex" comments embedded in the code
2725      - see pkg/generic_advdiff, pkg/mnc for examples
2726    o MNC:
2727      - make myThid the last argument for all subroutines
2728      - new default for the grid files: NO halos
2729      - add useMNC and other run-time flags
2730      - separate per-file-group handling of the unlimited dimension
2731      - early initialization of MNC w/ flags read at the eeboot stage
2732        and lookup tables set in initialize_fixed
2733      - write all MNC output to a freshly-created directory
2734    o thermodynamics sea-ice (thsice) is now tested with testreport.
2735    o test exp. advect_cs: use the standard cs32 grid ; update output.
2736    o Added functionality to grdchk:
2737      pick global i,j,k position (or nearest wet) where to perform check.
2738    
2739    checkpoint52l_post
2740    o new land formulation:
2741      a) use ground enthalpy as prognostic variable to ensure exact
2742         energy conservation.
2743      b) account for water temperature and for latent heat of freezing
2744         in all processes (rain, run-off, ground storage)
2745      c) compute surface and ground temperature implicitly.
2746    o aim_v23 modification for new land model:
2747      a) Treat separately land / ocean / sea-ice surface fluxes
2748         to allow implicit computation of land & sea-ice surface temp.
2749      b) add snow precipitation.
2750    checkpoint52l_pre
2751    
2752    o fix problem (when 1 tile is empty) in min/max monitor.
2753    o fix bug in timeAve (u,vZetatave in common block)
2754    o no restoring terms under ice for pkg/seaice
2755    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2756    o bug fix for pkg/seaice pickups
2757    o change MNC call locations and add coordinate attributes
2758    o mask vorticity at the corner ; affects global_ocean.cs output
2759    o fix ini_curvilinear_grid ; test CS experiments with mpi
2760    o aim.5l_cs: modify sea-ice fraction input file ; update output
2761    o exf: Adding simple range check routine for exf fields after read
2762    
2763    checkpoint52k_post
2764    o removed top-level directory "diags"
2765      - we migrated these functions to pkg/timeave a long time ago
2766    o fixed bug introduced in pkg/monitor
2767    o accuracy ctrlprec = 32 insuffient for gradient checks using
2768      averaged fields (I/O via cost_averages)
2769      -> use ctrl.h in active_file*.F to control I/O precision.
2770    o paramter list of CALL ADTHE_MAIN_LOOP
2771    o added initial do_the_model_io to ecco
2772    o set all ...Freq to zero after cost_final
2773      taveFreq, dumpFreq, pChkptFreq
2774    o MAIN and ECCO differentiability restored
2775    
2776    checkpoint52j_post
2777    o fix nchklev in tamc.h for global_ocean...
2778    o Bringing flow and store directives up-to-date
2779    o Really weird thing!
2780      call do_the_model_io from the_main_loop with parameters
2781      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2782      TAF places a faulty re-call of initialise_varia
2783      after cost_final call which should not be there!
2784    checkpoint52j_pre
2785    
2786    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2787      error messages
2788    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2789    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2790      debug output
2791    o modfied mdsio_writefield.F to handle non-global files under exch2
2792    o update AIM Cubed-Sphere exp (aim.5l_cs):
2793      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2794    o update AIM Equatorial Channel exp:
2795      use standard aim_v23 pkg and change the SST fields to be more realistic.
2796    o globalFile now works with exch2
2797    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2798      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2799    o limit timeave output for hi-res integrations
2800    
2801    checkpoint52i_post
2802    o removed CPP_EEOPTIONS.h from verification/*/code
2803    o updated the tiling for global_ocean_pressure
2804    checkpoint52i_pre
2805    
2806    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2807      the old pkg/aim).
2808    
2809    checkpoint52h_pre
2810    o shortened offending lines in exch2_send_rx?.template
2811    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2812    o genmake2: add build & execute test for NetCDF code
2813    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2814      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2815    o added useSingleCPUIO flag to monitor.F and mon_out.F
2816    o added temporary hack for sea-ice dynamics on the cube:
2817      metric terms are ignored and it is assumed that
2818      there is no sea-ice on cube faces 1, 2, 4, and 5.
2819    
2820    checkpoint52f_post
2821    o added exch2 cube routines to pkg/exch2
2822    o modified hs94.cs-32x32x5 to use it
2823    o added new grid files to hs94.cs-32x32x5
2824    checkpoint52f_pre
2825    
2826    checkpoint52e_post
2827    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2828      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2829    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2830      to work with implicit vertical advection and AB ;
2831    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2832    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2833     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2834    checkpoint52e_pre
2835    
2836    o fix bug in impldiff when Nr=1 or Nr=2.
2837    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2838    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2839    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2840      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2841    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2842    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2843    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2844    
2845    checkpoint52d_post
2846    o re-tiled many expts to allow comparison in multi-processor mode
2847      - updated output accordingly
2848      - changed hs94.128x64x5 to use intial T from file rather than use the
2849        random number generator
2850    o add infrastructure in model routines for fizhi and gridalt packages
2851    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2852    o changes to permit hi-res, cubed-sphere, configuration
2853      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2854      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2855      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2856        of surface winds for the cube
2857      (A verification experiment, based on global_ocean.cs32x15, but with
2858       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2859       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2860       complete with example surface forcing files and matlab scripts to look
2861       at the output and compare it with that of global_ocean.cs32x15.)
2862    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2863       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2864       to conform to the common rule.
2865    o check-in the first version of the coupler + interfaces for multi-components
2866       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2867       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2868       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2869       - ocean and atmos. share the same horizontal grid (no interpolation).
2870       - exchanges between component and coupler is done in forward_step
2871    o new verification experiment, cpl_aim+ocn:
2872       coupled ocean - AIM atmosphere on cs32 grid.
2873    
2874    checkpoint52d_pre
2875    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2876    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2877    
2878    checkpoint52c_post
2879    o Fixing OPTIONS files for use of exf:
2880      - ALLOW_ECCO not needed
2881      - ECCO_CPPOPTIONS.h should not be included from
2882        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2883        as has been the case in the past
2884      - All cal/exf related options are currently set in
2885        single header file. Should remain so until we
2886        agree on a consistent new policy.
2887    o Removed all CPP options for cal package.
2888      cal has no more CPP options.
2889    o modified STOREs in GAD_ADVECTION
2890    o corrected key comp. for passkey
2891    
2892    checkpoint52b_post
2893    o new version: "thsice" of thermodynamic sea-ice pkg:
2894     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2895     - modify fluxes but do not change theta directly;
2896     - light cleaning of bulk_force pkg (still needed with thsice).
2897     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2898       + output_thsice.txt to test thsice & bulk_force pkgs.
2899    o put back grid & coriolis monitor output.
2900    checkpoint52b_pre
2901    
2902    o call "do_the_model_io" at the beginning (=> dump initial state)
2903    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2904    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2905      (need info on NUMBER_OF_PTRACERS)
2906    o missing PTRACERS headers in some routines
2907    o default tamc.h in pkg/autodiff supposed to crash
2908      to ensure proper customization
2909    
2910    checkpoint52a_post
2911    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2912      - moved surfaceTendencyTice from pkg/seaice to main code
2913      - subroutine FREEZE_SURFACE now limits only surface temperature
2914        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2915        => new output.txt for global_ocean.cs32x15 & global_with_exf
2916      - keep the old version of FREEZE for backward compatibility;
2917        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2918      - corresponding modifs for TAF directives
2919    o added surface flux output variables to TIMEAVE_STATVARS
2920    o time-averaged output for pkg/ptracers
2921    o fix problem with ECCO-related divided adjoint
2922      snapshot file was missing some ad-variables,
2923      but no warning issued by TAF
2924    
2925    checkpoint52a_pre
2926    o some bug fixes for #undef REAL4_IS_SLOW
2927    
2928    checkpoint52 = ecco_c52_e35
2929    o after testing adjoints of checkpoint51u_post
2930    
2931    checkpoint51u_post
2932    o this is the post-merge tag of the ecco-branch
2933      (needs another clean checkout and re-testing)
2934    o various natl_box_adjoint configs and results
2935      but no input fields
2936    o obcs adjoint not yet merged!
2937    o adding ECCO global 1x1 and 2x2 degree configs
2938    o updated/extended some store directives for seaice
2939    o pkg/ecco now containes ecco-specific part of cost function
2940    o top level routines the_main_loop, forward_step
2941      supersede those in model/src/
2942      previous input data.cost now in data.ecco
2943      (new namelist ecco_cost_nml)
2944    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2945    
2946    checkpoint51t_post
2947    o this is the pre-merge tag of the ecco-branch
2948    
2949    checkpoint51s_post
2950    o cleanup: removed various obsolete #define-s
2951    o pkg/grdchk
2952      - renamed 'ph-grd 3' to 'grad-res'
2953      - merged from ecco-branch
2954        (remaining bug fixes for obcs gradient checks)
2955      - additional high-precision output for testreport
2956        (grep for 'precision_grdchk_result')
2957    
2958    checkpoint51r_post
2959    o cleaned up or removed CPP_OPTIONS.h files
2960    o updated results for some of the tests to reflect the new
2961      optfiles (-ieee: -O0 instead of -O3)
2962    
2963    checkpoint51q_post
2964    o cd_code:
2965      - moved cd_scheme.F -> cd_code_scheme.F
2966      - separate read_checkpoint from cd_code_ini_vars.F
2967      - separated cd_code part from write_checkpoint
2968      - updated AD_SOURCE, generated .flow
2969      - added CD_CODE_VARS.h to the_main_loop
2970      - Moving cd_code specific store dir.s to pkg/cd_code
2971    o ctrl package totally restructured
2972      - pack/unpack now optional and decoupled from
2973        xx_/adxx_ I/O
2974      - ctrl_pack/unpack cleaned
2975        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2976      - confined inclusion of AD_CONFIG.h to where necessary.
2977    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2978    
2979    checkpoint51p_post
2980    o create initial cd_code package
2981      - WARNING: the initialization of fields within packages
2982        is broken because INI_FIELDS (where READ_CHECKPOINT is
2983        called) is called *before* PACKAGES_INIT_VARIABLES.
2984        This seems to be backwards since
2985        1) its important to initially zero the entire field including
2986           the "halo" region
2987        2) zeroing needs to be done *before* reading pickup info
2988           and the pickup call might or might not happen in any
2989           particular run
2990      - this needs an overhaul for R2
2991    o cleanup verification/*/code/GMREDI_OPTIONS.h
2992    o cleanup testreport
2993    
2994    checkpoint51o_post
2995    o bringing AD-related verif's up to date with genmake2
2996      - carbon/
2997      - global_ocean.90x40x15/
2998      - hs.94.1x64x5/
2999      - (front_relax/ )
3000    o (more) consistent directory structure for AD-related verif.'s
3001    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
3002    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
3003    o bug fix in find_alpha.F for MDJWF:
3004      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
3005        change rho -> rho-rhoConst
3006      - replace call find_rho to find_rhonum
3007    o initialisation of rFlx extended to full array (required by TAF)
3008      and shifted to thermodynamics
3009    o removed PTRACERS.h in ptracers routine
3010    o added surfacetendencyPtr to S/R parameter list pracers_forcing
3011    o Correcting initialisations for fVerU, fVerV.
3012    o helping TAF to recognize dependency on kUp for
3013      fVerU, fVerV
3014    o Replacing delZ by delR in pkg/ctrl/
3015    checkpoint51o_pre
3016    
3017    o undid all of cp51 pending some cleanups and discussion
3018    o added the [#include "AD_CONFIG.h"] statement to all files that need
3019       it for adjoint/tl #defines
3020     o re-worked the build logic in genmake2 to support AD_CONFIG.h
3021     o removed tools/genmake since it no longer works
3022    
3023    checkpoint51n_post
3024    o modifications to make FREEZE flux visible to pkg/kpp
3025      - moved surfaceTendencyTice from pkg/seaice to main code
3026      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
3027      - subroutine FREEZE now limits only surface temperature
3028        (this means new output.txt for global_ocean.90x40x15,
3029         global_ocean.cs32x15, and global_with_exf)
3030    o added surface flux output variables to TIMEAVE_STATVARS
3031    
3032    checkpoint51n_pre
3033    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
3034    o added [#include "AD_CONFIG.h"] to all files that use the following
3035      defines:
3036      - ALLOW_ADJOINT_RUN
3037      - ALLOW_TANGENTLINEAR_RUN
3038      - ALLOW_ECCO_OPTIMIZATION
3039    
3040    checkpoint51m_post
3041    o incorporating changes to get TAMC/TAF working in genmake2
3042      - added new TAMC/TAF targets to the Makefile
3043      - various cleanups related to package handling
3044      - these changes should have no impact on the forward model
3045    
3046    checkpoint51l_post
3047    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
3048     - faster algorithm for cal_addtime.F
3049     - higher precision arithmetic, where needed
3050     - pkg/exf *startdate variables changed from calendar date to
3051       model integration time
3052    
3053    checkpoint51l_pre
3054    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
3055    o enable to apply restoring on S & T only in a latitude band.
3056    o update output (external_forcing_surf modif. change truncation errors)
3057       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
3058    
3059    checkpoint51k_post
3060    o change default to: useNHMTerms=.FALSE.
3061     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
3062       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
3063     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
3064        exp1, ideal_2D_oce
3065     - change data file of oceanic exp (leave the results unchanged for now)
3066       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
3067    o set gravitySign automatically according to the vertical coordinate used
3068      (and change sign: back to "logical" value: +1 when R increases downward)
3069    o added an include barrier to the default CPP_OPTIONS.h and
3070      removed the #include "PACKAGES_CONFIG.h" from it
3071    o fix a bug in mom_fluxform (from chk51j_post)
3072    
3073    checkpoint51j_post
3074    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
3075    o adjusted some flow directives (dynamics, thermodynamics)
3076    o added cubed-sphere case to test cost function
3077    o heckpoint_lev?_directives.h now include
3078      pkg-specific directives, whenever those are enabled.
3079    o Moving pkg-specific flow directives to corresponding pkg
3080      Moving pkg-specific differentiation list to corresponding pkg
3081      Moving pkg-specific checkpoint-lev storing to corresponding pkg
3082      ---> conventions are
3083           - pkg_ad.flow
3084           - pkg_ad_diff.list
3085           - pkg_ad_check_lev?_dir.h
3086    
3087    checkpoint51i_post
3088    o merge of the branch-genmake2
3089      - knowingly breaks the older genmake
3090      - automatic generation of all ALLOW_${PKG_NAME} defines
3091      - new testreport supersedes older testscript
3092    o large number of package inclusion and header cleanups
3093    checkpoint51i_pre
3094    
3095    o new output for adjoin of global ocean vector invariant
3096    o fix for checkpoint of thermodynamic seaice and bulk_force
3097    o Steph gchem various cleanups
3098    
3099    checkpoint 51h_pre
3100    o fixed some single quotes
3101    o modify gchem pkg to be more versatile
3102    o modifications to clean up dic pkg
3103    o add pkg/cfc
3104    
3105    checkpoint51g_post
3106    o provide links for ARPACK and ADM*TLM
3107    o start removing verification/vero/
3108    o update AD-related stuff
3109      (in particular some IF-statements in model/src/ routines)
3110    o adding to verification/global_ocean.90x40x15/ adjoint of
3111      vector invariant setup
3112    
3113    checkpoint51f_post
3114    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
3115    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
3116      of tracer Green's fucntions for ocean inversion project.
3117    
3118    checkpoint51f_pre
3119    o Added on-the-fly spatial interpolation capability
3120        "USE_EXF_INTERPOLATION" to pkg/exf.
3121      - This is a temporary Cartesian-grid hack until
3122        the super-duper ESMF coupler becomes available.
3123      - See verification/global_with_exf/README for usage example.
3124      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
3125        flags and modified pkg/seaice accordingly.
3126    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
3127        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
3128        non-local transport term.
3129    
3130    checkpoint51e_post
3131    o pkg/mom_vecinv:
3132      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
3133      - add time-ave diagnostic of vorticity advection.
3134    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
3135    o atmospheric geopotential: - include water vapor effect;
3136                                - use p^kappa in p* scaling.
3137    o land pkg: read initial state from files.
3138    o AIM : add stratospheric drag in the upper level
3139    
3140    checkpoint51d_post
3141    o change function ILNBLNK (=> last non-blank char.) to return zero
3142      (instead of the string length) when the string. char is empty
3143    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
3144    o modif's to restore TAMC compatibility
3145      - avoid "_d" constructs in PARAMETER declarations
3146      - avoid interrupting lines by comment lines
3147    o Use cluster local disks for purely local I/O
3148      vs. globally visible disks needed for ctrl stuff
3149      (merged from ecco-branch)
3150      - new active_file_loc... and mdsio_..._loc routines
3151      - affected packages: autodiff, ctrl, grdchk, mdsio
3152    
3153    checkpoint51c_post
3154    o introducing integer flag debugLevel
3155      - debLevZero: suppress all output
3156      - debLevA: standard
3157      - debLevB: equivalent to current debugMode=.TRUE.
3158    o introducing pathname variable mdsioLocalDir for mdsio
3159      that can be specified at runtime
3160      (relevant for cluster I/O to local disk)
3161    `
3162    >>>checkpoint51b_post
3163    adjoint of ptracers
3164    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
3165    o extended state in checkpoint_lev?, etc.
3166    o alternative ctrl/cost with tr1 or ptracer
3167    o new comlev1_bibj_ptracers
3168    o new ptracers.flow
3169    o made ptracers_forcing same as external_forcing_s
3170    o added verification for adjoint with ptracers
3171      - adm. grdchk fail so far
3172      - tlm. grdchk OK
3173      - checked tapelev/comlev recomputations: OK
3174    <<<checkpoint51b_pre
3175    
3176    checkpoint51a_post
3177    o added code for biogeochemistry package
3178      - new pkgs: dic, gchem
3179      - new subroutine in ptracers
3180    o modify code for biogeo packages
3181      - in model/src and pkg/ptracers
3182    
3183    checkpoint51
3184    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
3185      - autodiff, ctrl, exf, grdchk, seaice
3186      kept separate packages
3187      - cost, ecco, obcs
3188    o updating verification/internal_wave, verification/lab_sea
3189      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
3190    
3191    checkpoint50i_post
3192    o Preparing next differentiable checkpoint and sync
3193      of MAIN vs. ecco-branch
3194      - 1st step: this one is differentiable
3195      - 2nd step: next(! not this) checkpoint will have updated packages
3196                  from ecco-branch)
3197    
3198    checkpoint50h_post
3199    o new package "land": provide surface BC for AIM.
3200    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
3201    o AIM: use true log-P extrapolation for near surface temp (= as in
3202        F.Molteni paper) ; update aim.5l_cs output.
3203    o New variable in PARM03 for more flexible pickups
3204    o somewhat cleaned package initialisation sequence for
3205      ctrl/ cost/ ecco/ in packages_... routines
3206    
3207    checkpoint50g_post
3208    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
3209      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
3210      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
3211        made the default because of faster convergence than ADI
3212    
3213    checkpoint50f_post
3214    o exf totally restructured
3215      - replaced all exf_set_ routines by one generic exf_set_gen.F
3216        and made sure it's still differentiable
3217      - split exf_getffields.F into new exf_bulkformulae.F
3218      - exf_inscal_/exf_outscal_ suffixes consistent with field names
3219      - updated adjoint/makefile and relevant verif. accordingly
3220    
3221    checkpoint50f_pre
3222     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
3223          + change Evap over land. (update aim.5l_cs output)
3224     o added missing .cvsignores and made uniform across expts
3225     o changed configuration of tidal_basin_2d expt
3226     o added pkg/debug functions for tracing code in fatal crashes
3227     o tidied pkg/monitor to use MONITOR_OPTIONS.h
3228     o new fn in pkg/monitor to stop model if solution grows too big
3229     o removed lots of single quotes from comments
3230    
3231    checkpoint50e_post
3232    o make KPP work with PTRACERS
3233     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
3234       nearly a copy of kpp_transport_s
3235     - there is no analogue to SurfaceTendencyS, so I have to use
3236       gPtr(of the surface layer) instead
3237    o add a new platform SunFire+mpi (SunFire 15000) to genmake
3238    checkpoint50e_pre
3239    
3240    checkpoint50d_post
3241    o change kpp output from multiple-record state files to single-record state
3242      files analogous to write_state.F
3243    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
3244      analogous to the cg2d-related output.
3245    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
3246      so that writing to internal file fn (with length 512) fails.
3247    checkpoint50d_pre
3248    
3249    checkpoint50c_post
3250    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
3251    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
3252    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
3253    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
3254    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
3255    
3256    checkpoint50c_pre
3257    Merging from release1_p13:
3258    o bug fix for pkg/seaice dynamic solver
3259    o Added SEAICE_initialHEFF to pkg/seaice
3260    
3261    checkpoint50b_post
3262    o store u*,v* in gU,V instead of in guNm1,gvNm1
3263    o in order to put the momForcing out of the Adams-Bashforth:
3264      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
3265      to timestep.F
3266    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
3267    o re-generate output for highly sensitive test-exp:
3268       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
3269    
3270    checkpoint50b_pre
3271    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
3272    o corrected CPP option mismatch in exf_Bulk... functions for case
3273      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
3274    
3275    checkpoint50a_post
3276    o Bug fix for merging between c50 and KPP.
3277      ikey was passed from thermodynamics to kpp_calc via
3278      common block rather than being recomputed in kpp_calc,
3279      in contradiction with new key itdkey.
3280      New key ikppkey created, and tamc.h headers updated.
3281    
3282    checkpoint50
3283    - 2nd step of merge with ecco-branch:
3284      merge changes in ecco-branch back into main trunk
3285    - bug fix in find_alpha
3286    - more storing in gmredi_calc_tensor.F, kpp_routines.F
3287    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
3288    - merged some sliced AD support routines
3289    
3290    checkpoint49
3291    merged from ecco-branch:
3292    o exf:
3293      - Enable initialisation of forcing fields to constant
3294        (runtime) values.
3295      - in exf_getffields.F
3296        Reduce i-/j-loop to interior domain, discarding overlaps.
3297        That also fixes wrong TAF-key computations for key_1, key_2
3298        with bulf formulae.
3299      - exf_init.F modify #ifdef for exf_init_evap
3300      - exf_getffieldrec.F, ctrl_getrec.F
3301        The following INT-usages are not safe:
3302          fldsecs  = int(fldsecs/fldperiod)*fldperiod
3303          fldcount = int(fldsecs/fldperiod) + 1
3304        and were modified.
3305    o autodiff: checkpoint_lev...
3306      - updated storing for bulk formulae (some arrays were missing)
3307      - added state for seaice package
3308      - synchronized with main branch
3309    o DIVA:
3310      Modif.s in
3311      - the_main_loop.F
3312      - the_model_main.F
3313      and added cost_final_restore.F cost_final_store.F
3314      o With these changes, it is possible to fully separate
3315        the first forward run to compute the cost function (mdthe_main_loop)
3316        and adjoint runs over individual DIVA intervals (adthe_main_loop)
3317        into separate model executions.
3318        This enables better tuning of DIVA to given queue sizes.
3319      o Loss of cost function value in consecutive DIVA runs is
3320        fixed by storing to 'costfinal' file.
3321      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
3322        beginning/end of adjoint integration is accounted for.
3323      The current changes apply to TAF-1.4.26.
3324      TAF has one remaining bug, requiring one manual change
3325      (see MITgcm manual).
3326    o cal: synchronized between MAIN and ecco-branch
3327    
3328    checkpoint48i_post
3329    o Changes to restore differentiability of code w.r.t. previous tag
3330      (mostly adding new routines to make list and replacing
3331      pressure by totPhiHyd).
3332    o Updated and merged grdchk package
3333      - has both ADM and TLM checks
3334      - works for single- and multi-proc.
3335      - output cleaned
3336      - worked successfully for parallel DIVA
3337    o genmake:
3338      - Adding -platform=SP4
3339      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
3340    o Modif. for DIVA:
3341      ctrl_unpack should not be called in intermediate DIVA interval.
3342      (similar thing would apply for active files such as
3343      tbar, sbar, psbar, which should not be reinitialised;
3344      only relevant for ecco-branch)
3345    
3346    checkpoint48h_post
3347    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
3348    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
3349    o Added SEAICE_initialHEFF to pkg/seaice
3350    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
3351    
3352    checkpoint48g_post
3353    --- EOS:
3354    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
3355      store total Potential in totPhyHyd for diagnostics & EOS.
3356    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
3357    --- Pressure/geopotential gradient:
3358    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
3359    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
3360      ( changes results of global_ocean_pressure )
3361    o NLFS + z-coord.: add eta*Rho' contribution.
3362    o accurate phiHyd when using interface-W at the middle between 2 centers
3363     ( changes results of ideal_2D_oce )
3364    o includes r* 2nd term in potential gradient.
3365    
3366    checkpoint48f_post
3367    Merging from release1_p12:
3368    o Modifications for using pkg/exf with pkg/seaice
3369      - improved description of the various forcing configurations
3370      - added basic radiation bulk formulae to pkg/exf
3371      - units/sign fix for evap computation in exf_getffields.F
3372      - updated verification/global_with_exf/results/output.txt
3373    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
3374      (SBO) core products, including oceanic mass, center-of-mass,
3375      angular, and bottom pressure (see pkg/sbo/README.sbo).
3376    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
3377      to avoid negative values in shallow regions.
3378      - updated verification/natl_box/results/output.txt
3379      - updated verification/lab_sea/results/output.txt
3380    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
3381    o Added useSingleCpuIO option (see PARAMS.h).
3382    o Updated useSingleCpuIO option in mdsio_writefield.F to
3383      work with multi-field files, e.g., for single-file pickup.
3384    o pkg/seaice:
3385      - bug fix in growth.F: QNET for no shortwave case
3386      - added HeffFile for specifying initial sea-ice thickness
3387      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
3388    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
3389      kpp_transport_t.F, forward_step.F, and the_main_loop.F
3390    o pkg/seaice:
3391      - adjoint-friendly modifications
3392      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
3393    
3394    checkpoint48e_post
3395    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
3396    o dynamics: change definition of computational domain & adapt mom_fluxform
3397      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
3398    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
3399        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
3400        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
3401        global_ocean.90x40x15 global_with_exf global_ocean_pressure
3402        inverted_barometer solid-body.cs-32x32x1
3403      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
3404    
3405    checkpoint48d_post
3406    o in preparation for r*:
3407     a) use pre-computed gradient of hydrostatic potential:
3408        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
3409     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
3410        => affects results of glob_oce_pressure (different truncation error)  
3411      update output.txt of ideal_2D_oce & global_ocean_pressure
3412    
3413    checkpoint48d_pre
3414    o in preparation for r*:
3415      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
3416      pass the 2 comp. of the grad. as arguments to momentum S/R.
3417      but for the moment, only used if it does not change the results.
3418    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
3419    
3420    checkpoint48c_post
3421    Modifications in treatment of initial flux forcing controls
3422    to avoid extra storing of flux fields.
3423    
3424    checkpoint48c_pre
3425    o Added tidal_basin_2d experiment (currently 1D!)
3426    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
3427    
3428    checkpoint48b_post
3429    o r* coordinate added in #ifdef NONLIN_FRSURF block.
3430     (modification to pressure gradient not yet implemented)
3431    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
3432      (for U & V) that are used for vertical advection of momentum.
3433    
3434    checkpoint48a_post
3435    o In preparation for r*, use temp. array to compute vertical transport
3436       in flux-form momentum pkg. => change results of few test-exp.
3437      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
3438                        lab_sea, natl_box & plume_on_slope
3439    
3440    checkpoint48
3441    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
3442    
3443    checkpoint47j_post
3444    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
3445    o moved adexch from forward_step to addummy_in_stepping
3446    o added exch in ctrl_map_...
3447    o aveFreq.=0. at end of cost_final to avoid overwrite in
3448      reverse checkpointing loop
3449    o Yet more changes in gmredi:
3450      * adgmredi_calc_tensor
3451        avoiding all recomputation of gmredi_slope_limit
3452      * adgmredi_x/y/rtransport
3453        added flag for excessive storing to avoid recomp. of
3454        u/v/rtans, dTdx/y/z
3455        -> this is not really necessary and very memory-consuming
3456      * adgmredi_slope_psi:
3457        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
3458      * gmredi_slope_limit
3459        re-activated full calculation of taperfct for case 'ac02'
3460    o updating verification/ adjoints of carbon, global_ocean.90x40x15
3461    
3462    checkpoint47i_post
3463    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
3464    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
3465      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
3466    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
3467    o gmredi: fix few bugs.
3468    
3469    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
3470    This will be a good checkpoint to plug into the ecco-branch.
3471    o few modif.'s to get latest version adjointed
3472      (mainly kick out code in ini_linear_phisurf)
3473    o modif's to run adjoint with exactConserv
3474    o case GM_BOLUS_ADVEC should be cleaned
3475      S/R gmredi_slope_psi should be cleaned
3476    o verification/carbon now has exactConserv=.TRUE.
3477    
3478    checkpoint47g_post
3479    o time-average AIM output: becomes independent from statvars time-average
3480      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
3481    o After TAF bug fix:
3482      Tested adjoint of gmredi package.
3483      Tests were done with checkpoint47 rather than with latest
3484      checkpoint47f_post since the latter is broken for the adjoint
3485      verification/carbon/ contains both ADM and TLM gradient checks.
3486    Here they are, before they get changed/lost/stolen.
3487    Mostly modif.'s to fix numerical sensitivities.
3488    Gradient checks OK for
3489    - GM_taper_scheme:
3490      * clipping
3491      * ac02
3492      * linear
3493      * glw91
3494      * dm95
3495      * ldd97
3496    - GMREDI_OPTIONS:
3497      * GM_VISBECK_VARIABLE_K
3498      * GM_NON_UNITY_DIAGONAL
3499      * GM_EXTRA_DIAGONAL
3500      * GM_BOLUS_ADVEC
3501    in conjunction with data.gmredi parameters to be checked in
3502    in a few minutes under verification/carbon/code/
3503    
3504    checkpoint47f_post
3505    Merging from release1_p10:
3506    o modifications for using pkg/exf with pkg/seaice
3507      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
3508        and SEAICE_EXTERNAL_FLUXES
3509      - pkg/exf CPP options EXF_READ_EVAP and
3510        EXF_NO_BULK_COMPUTATIONS
3511      - usage examples are Experiments 8 and 9 in
3512        verification/lab_sea/README
3513      - verification/lab_sea default experiment now uses
3514        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
3515    
3516    checkpoint47e_post
3517    o created a tag prior to creating a branch
3518    
3519    checkpoint47d_post
3520    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
3521      at the bottom boundary had an erroneous half slip boundary condition
3522    o added bottom drag and no slip boundary condition capabilities to
3523      oceanic pressure coordinates code
3524    o added new verification experiment global_ocean_pressure, this experiment is
3525      also described in the tutorial section of the manual
3526    checkpoint47d_pre
3527    
3528    checkpoint47c_post
3529    o Added a verification experiment for a global cubed-sphere ocean run
3530      -  verification/global_ocean.cubed32x32x30
3531      -  uses pkg/therm_seaice and pkg/bulk_forcing
3532    
3533    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
3534    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
3535      when using P-coordinate; only implemented for atmospheric config.
3536    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
3537      NOTES: requires option NONLIN_FRSURF to be "#define".
3538    o update advect_xz/results/output.txt (left from checkpoint44g_post)
3539    
3540    checkpoint47b_post
3541    Merging from release1_p9:
3542    o pkg/seaice
3543      - removed GOTO's and added taf directives
3544      - double precision constants to reduce the g77 (Linux)
3545        to F77 (SGI) differences reported in release1_p8
3546    o tools/genmake
3547      - added SGI options
3548    o verification/testscript
3549      - updated to that of checkpoint47a_post
3550    o verification/global_ocean.90x40x15/input/eedata
3551      - modified for SGI f77 compatibility
3552    o verification/lab_sea
3553      - added description of sea-ice model
3554      - added missing matlab routines
3555      - added test of thermodynamics parallelization
3556    
3557    checkpoint47a_post
3558    o new pkg: aim_v23
3559     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
3560       for now, keep the same surface forcing as before.
3561     - Part-Cell implemented into AIM; check that Heat & Water are conserved
3562     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
3563     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
3564    o add diagnostic of surface correction term in monitor output
3565    
3566    o bulk_force and therm_seaice
3567    - Two packages:  bulk_force (Bulk forcing)
3568      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
3569    - Earlier integration from Stephaine Dutkiewicz
3570      and Patrick Heimbach.
3571    - Two ifdef statements for compile time,
3572       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
3573    
3574    checkpoint47
3575    differentiable version of checkpoint46n_post
3576    o bug fix in quasihydrostaticterms
3577    o * "clean" adjoint code (in terms of extensive recomputations)
3578        can now be obtained for all GMREDI options (i.e. for
3579        - GM_VISBECK_VARIABLE_K
3580        - GM_NON_UNITY_DIAGONAL
3581        - GM_EXTRA_DIAGONAL
3582        - GM_BOLUS_ADVEC )
3583      * However, wrong gradient check problem remains unsolved.
3584      * New CPP options have been introduced for different
3585        tapering schemes
3586    o external_fields_load now part of differentiation list
3587    o pressure needs multiple storing;
3588      would be nice to have store_pressure at beginning or
3589      end of forward_step, e.g. by having phiHyd global (5-dim.)
3590      (NB: pressure is needed for certain cases in find_rho,
3591      which is also invoked through convective_adjustment).
3592    o recomputations in find_rho for cases
3593     'JMD95'/'UNESCO' or 'MDJWF' are OK.
3594    o #define ATMOSPHERIC_LOADING should be differentiable
3595    o ini_forcing shifted to begining of initialise_varia
3596    o Incorporating QNVS line search routines into MITgcm
3597      (this is separate code, and therefore not under pkg)
3598      lsopt/, optim/
3599    o Updated verification/carbon/
3600      - #define GM_VISBECK_VARIABLE_K
3601      - GM_taper_scheme    = 'ldd97'    
3602    
3603    checkpoint46n_post
3604    Merging from release1_p8:
3605    o verification/natl_box:
3606      updating new external_fields_load routine
3607    o New package: pkg/seaice
3608      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
3609      The sea-ice code is based on Hibler (1979-1980).
3610      Two sea-ice dynamic solvers, ADI and LSR, are included.
3611      In addition to computing prognostic sea-ice variables and diagnosing
3612      the forcing/external data fields that drive the ocean model,
3613      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
3614      The implied surface heat flux is then stored in variable
3615      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
3616      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
3617      non-local transport term.  Because this call precedes model
3618      thermodynamics, temperature under sea-ice may not be "exactly" at
3619      the freezing point by the time theta is dumped or time-averaged.
3620      N.B.: fairly large differences in accuracy occur across
3621            different platforms/compilers; comparison between
3622            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
3623            generated output gives:
3624       T           S           U           V
3625      C D M    c        m  s        m  s        m  s        m  s
3626      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
3627      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
3628      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
3629    
3630      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
3631    o GAD:
3632      - generated new common blocks to account for call of
3633        same gad routines with differing traceridentities
3634        (needed to modify tracerIdentity indices in GAD.h)
3635      - generated separate common blocks for case useCubedSphereExchange
3636        (Department of Futurology)
3637      - parameter lists to gmredi_?transport: added tracerIdentity
3638      - added new key indices to tamc.h
3639    o external_fields_load:
3640      - added this routine to TAF list
3641      - needed to make some common blocks global and additional storing
3642        along the same lines as exf package (checkpoint_lev?_directives.h)
3643    o exf:
3644      updated external forcing package
3645      - bug fixes carried over from ecco-branch
3646        (missing OBCS_OPTIONS.h in two routines)
3647      - enable easy to use "no forcing".
3648      - added exf I/O for atmospheric loading
3649      - added exf I/O for runoff data
3650      - transfered scaling between exf <-> MITgcm to exf namelist
3651    o Adding new verification experiment global_with_exf.
3652      This verification experiment is almost identical to the
3653      global_ocean.90x40x15 experiment, except that it uses
3654      the exf (and cal) package instead of the
3655      external_fields_load routine (cf README file).
3656    
3657    checkpoint46m_post
3658    o modified testscript to return -- when there are no lines of "%MON" output
3659    o added new flag "quasiHydrostatic" for QH mode
3660      and new routine quasihydrostaticterms()
3661    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
3662      New routine: mom_u_coriolis_nh()
3663    o fixed sign of non-hydrostatic metric terms in u and v equations.
3664      Depend on correct sign of gravitySign.
3665    o added work.pc* to .cvsignore in aim directories using ifc
3666    o introduced flag for controllin non-hydrostatic metric terms
3667    o removed gravitySign from PARM04
3668    o switched to g77/ifc from pgf77 in aim experiments
3669    
3670    checkpoint46l_post
3671    o made convective adjustment work with pressure coordinates:
3672     - changed the direction of k-loop in convective_adjustment.F for the
3673       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
3674     - adjusted the reference pressure k-index in convective_adjustment.F
3675     - adjusted the convection condition in convect.F (in analogy to
3676       calc_ivdc.F)
3677     - convective_adjustment no longer computes anything on the halos
3678     - removed the warnings about negative salinity from find_rho.F and
3679       find_alpha.F; instead the new routine look_for_neg_salinity, called
3680       at the beginning of find_rho, find_alpha, and find_beta, does a
3681       check of the entire slice, if CPP-option
3682       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
3683    checkpoint46l_pre
3684    
3685    checkpoint46k_post
3686    o fixed the verification/global_ocean.90x40x15 experiment:
3687     - new bathymetry (the world according to A., JMC, and M.)
3688     - new initial fields and forcing fields (*.bin files)
3689     - new POLY3.COEFFS (for the next release one should switch to a full
3690       equation of state: JMD95P or MDJWF)
3691     - fixed several errors and redundancies in the data file
3692     - experiment uses looped cells
3693     - added matlab directory with diagnostic scripts for plotting of output
3694    
3695    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
3696     - read AIM physics parameters from a file (data.aimphys)
3697     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
3698    
3699    checkpoint46j_post
3700    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
3701    o move wVel computation at the end of the time step, in S/R integr_continuity
3702    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
3703    o update timeave pkg for wVel diagnostic.
3704    checkpoint46j_pre
3705    
3706    checkpoint46i_post
3707    o Clean up AIM package (and keep the results unchanged):
3708      include CPP_OPTION and use IMPLICT NONE in all routines ;
3709      declare all the variables _RL ; use _d 0 for all numerical constants.
3710      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
3711    
3712    checkpoint46h_post
3713    o cleaned up the use of rhoNil and rhoConst.
3714      - rhoNil should only appear in the LINEAR equation of state, everywhere
3715        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
3716        and the dynamical equations are all divided by rhoConst
3717    o introduced new parameter rhoConstFresh, a reference density of fresh
3718      water, to remove the fresh water flux's dependence on rhoNil. The default
3719      value is 999.8 kg/m^3
3720    o cleanup up external_forcing.F and external_forcing_surf.F
3721      - can now be used by both OCEANIC and OCEANICP
3722    checkpoint46h_pre
3723    
3724     Added code to convert surface volume flux (fresh water) into
3725     a mass flux when using P coordinates in the ocean (OCEANICP).
3726     Note: It assumes you have set rho0=rhoConst=density of fresh water.
3727    
3728    checkpoint46g_post
3729    o Include a new diagnostic variable phiHydLow for the ocean model
3730      - in z-coordinates, it is the bottom pressure anomaly
3731      - in p-coordinates, it is the sea surface elevation
3732      - in both cases, these variable have global drift, reflecting the mass
3733        drift in z-coordinates and the volume drift in p-coordinates
3734      - included time averaging for phiHydLow, be aware of the drift!
3735    o depth-dependent computation of Bo_surf for pressure coordinates
3736      in the ocean (buoyancyRelation='OCEANICP')
3737      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
3738        Theta, Salinity, and Pressure in the parameter list. This routine is
3739        presently contained in find_rho.F. This routine does not give the
3740        correct density for 'POLY3', which would be a z-dependent reference
3741        density.
3742    o cleaned up find_rho
3743      - removed obsolete 'eqn' from the parameter list.
3744    o added two new verification experiments: gop and goz
3745      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
3746    checkpoint46g_pre
3747    
3748    checkpoint46f_post
3749    o Enable tangent linear (forward mode) gradient checks:
3750      - extended active file handling to g_... files
3751      - added TANGENT_SIMULATION to theSimulationMode
3752      - extended grdchk package accordingly
3753    o added tangent linear setup in verification/carbon/code_ftl
3754    o added adjoint setup in verification/front_relax/code_ad
3755    
3756    checkpoint46e_post
3757    o Added new equation of state -> MDJWF
3758      - EOS of McDougall et al., 2002, JAOT, submitted
3759      - caveat: the equation of state is only valid for a smaller (more
3760        realistic?) range of values than JMD95P/Z and UNESCO
3761      - added masks to the calculation of pressure in store_pressure
3762      - added more check values for density in check_eos (ini_eos.F), some of
3763        the old check values are out of the range of the MDJWF-eos, so don't
3764        expect perfect matches for those
3765    checkpoint46e_pre
3766    
3767    checkpoint46d_post
3768    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
3769      'OCEANICP', also initialised field pressure correctly in ini_eos in the
3770      case of pressure coordinates. eosType='JMD95Z' in
3771      combination with buoyancyRelation='OCEANICP' now causes an error.
3772    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3773      in find_alpha/beta.
3774    checkpoint46d_pre
3775    
3776    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3777      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
3778    
3779    checkpoint46c_post
3780    o Changes necessary for ocean in p-coordinates
3781     -  Added new buoyancy relation = 'OCEANICP'
3782     -  Added new parameters = gravitySign (this used to be contained inside
3783        the factor dRdZ which I added when we first switched to R coordinates).
3784     X GM/Redi is not compatible (yet)
3785     X bottom drag and no-slip need to be debugged.
3786    checkpoint46c_pre
3787    
3788    checkpoint46b_post
3789    o Added new equation of state -> JMD95Z and JMD95P
3790      - EOS of Jackett and McDougall, 1995, JAOT
3791      - moved all EOS parameters into EOS.h
3792      - new routines ini_eos.F, store_pressure.F
3793    o Added UNESCO EOS, but not recommended because it requires
3794      in-situ temperature (see JMD95)
3795    o Modified formatting for knudsen2.f in utils/knudsen2 and added
3796      unesco.f to be used with POLY3
3797    checkpoint46b_pre
3798    
3799    checkpoint46a_post
3800    o Added (atmospheric) pressure loading
3801      - new field in FFIELDS.h, etc...
3802      - new cpp flag ATMOSPHERIC_LOADING
3803    o Changed hFacC to _hFacC in calc_phi_hyd.F
3804    o Added SHORTWAVE_HEATING to some files for consistency
3805    checkpoint46a_pre
3806    
3807    checkpoint46
3808    further merges from release1_p5
3809    o new ctrl package
3810      - adopted from ECCO environment to enable optimization
3811      - added Eliassen Palm fluxes to controls
3812    o added Eliassen Palm flux controls to gradient check package
3813    o cost package
3814      - Compatible with new ctrl package
3815      - added Eliassen Palm cost hooks
3816      - modif's of existing cost functions
3817    o Adjoint-related bug fixes in kpp:
3818      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
3819      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
3820    o autodiff package
3821      - flow directives:
3822        + new for S/R do_the_model_io
3823        + enhanced for S/R checkpoint
3824        + new gmredi.flow
3825      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
3826        disable adcommon.h/g_common.h by default.
3827      - fixed problem for adjoint of global_max
3828    o modified verification/carbon/
3829    o New setup for adjoint of global_ocean
3830    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
3831    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
3832    o incorporated hooks for sponge layer code (external_forcing.F)
3833    
3834    checkpoint45d_post
3835    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
3836    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
3837      (affects plume_on_slope "cg2d" output)
3838    o add new parameter deltaTfreesurf for free-surface time stepping
3839    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
3840  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
3841  o change phiMin in exp1 (to agree with documentation)  o change phiMin in exp1 (to agree with documentation)
3842  o add new flags:  o add new flags:

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