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revision 1.137 by jmc, Wed Feb 26 03:29:08 2003 UTC revision 1.1095 by jmc, Mon May 11 12:36:41 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  untagged  o eesupp & mdsio (SingleCpuIO):
8      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
9        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
10        receive real*4 array (instead of real*8) to read/write 32.bit files.
11        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
12         and remove new mapping S/R)
13    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
14      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
15        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
16        when using exch2. Add S/R to map global io-buffer to global model array.
17      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
18    
19    checkpoint61m
20    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
21      and add 3 other S/R for other types (R4,R8,RS).
22      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
23    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
24     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
25     - reduce number of macro definitions (keep only those which are used);
26       can always call directly the corrresponding S/R if needed.
27     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
28       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
29     Fixed wrong type of arg in:
30       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
31       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
32     To fix: global_sum of var in common block is wrong (multi-threaded) in:
33       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
34     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
35    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
36      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
37    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
38    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
39      edges are closed (zero depth); might happen with "blank tiles";
40      for now, disabled if using OBCS.
41    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
42      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
43    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
44      to reduce length of 1.D array print in STDOUT.
45    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
46      + use 48 tiles (16x8): this will allow to test "blank tiles".
47    o start to test MPI + multi-threaded (change testreport to skip tests
48      where number of tiles do not match).
49    o genmake2: add option "-omp" to turn on Open-MP ;
50      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
51    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
52      and keep the original tile numbering. Note: compatible with old
53      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
54    
55    checkpoint61l
56    o Overlaps had been forgotten in calculating ijk keys : fixed
57    o fix cyrus makedepend for gcc 4.4
58    o experiment fizhi-cs-aqualev20:
59      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
60      and generate new output. Note: new output is much closer to the old
61      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
62      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
63    o pkg/fizhi:
64     - change to avoid indices going deliberately over array-bounds
65     - remove unnecessary MPI stuff
66     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
67     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
68       does not go over array-bounds and therefore returns reliable output.
69     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
70       this S/R has 4 output arguments, which are used inside "get_alarm";
71       when it is called with the same variable "ndum" in place of several
72       output arguments, this produces weird side effect inside "get_alarm"
73      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
74       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
75       address) and produces error.
76    o tools/gemake2: (March 27-29 2009)
77      with option "-mpi": link *_mpi files from "MODS" dir (this is what
78      testreport does).
79    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
80    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
81       update lab_sea.lsr & lab_sea.salt_plume results
82    o pkg/seaice:
83      Major overhaul of the LSOR solver: change discretization from original
84      finite differences to finite volume. The old routine is still in the
85      file seaice_lsr.F and can be turned on with the CPP-flag
86      SEAICE_OLD_AND_BAD_DISCRETIZATION
87      Along with this change, the discretization of the strain rates is changed.
88      The same flag turns on the old discretization in seaice_calc_strainrates.F
89      All verification experiments with seaice are affected (except for
90      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
91      results by setting the above flag.
92      Further changes involve changes in defaults:
93      - ALLOW_FLOODING is defined and turned on by default
94      - SEAICEadvSnow = .true. is now the default
95      - SEAICEadvSalt = .true. is now the default
96      - SEAICEadvAge  = .true. is now the default
97      - SEAICE_clipVelocities  = .false. is now the default
98                                         (as per J. Zhang's recommendation)
99      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
100        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
101      - seaice_growth: replace computation of UG by a simple copy from wspeed
102    
103    checkpoint61k
104    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
105      seaice_lsr: fixed a few metric terms,
106                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
107                  add more debugging diagnostics
108      seaice_evp: removed superfluous many metric terms of FV discretization
109                  of stress divergence
110                  affects lab_sea, lab_sea.hb87
111      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
112                  of stress divergence for non-evp solver
113                  (this part is not tested anywhere)
114      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
115                  they were effectively only half slip
116                  affects lab_sea.hb87
117      updated all relevant verification experiments (except lab_sea//output_adm.txt
118        which was left over, but fails at level 7 & 6)
119    
120    checkpoint61j
121    o pkg/seaice: turn a few hard wired parameters into run time parameters
122    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
123      time in seconds as promised by the usints in seaice_monitor and exf_monitor
124    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
125      that are not cubed-sphere grids
126    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
127    o pkg/ctrl:
128      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
129    o non-hydrostatic (calc_gw.F):
130      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
131      update output of exp. global_ocean.cs32x15.viscA4
132    o remove backward compatibility for thetaMin,phiMin
133      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
134    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
135      interpolated wind field not only for curvilineargrid=.true., but also
136      for a rotated grid (rotateGrid=.true.)
137    o pkg/exf: add capability to bypass interpolation for runoff
138      by setting yet another CPP-flag
139    o eesupp/src, B-grid exchange:
140      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
141    o autodiff
142      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
143      allows to switch to single-prec common blocks;
144      corresponding switch occurs in tamc.h, integer isbyte
145      TAF store directivs "byte" and "kind" seem equivalent;
146      Most tamc.h have been updated correspondingly.
147    
148    checkpoint61i
149    o autodiff:
150      fix autodiff_sore/_restore indices for obcs
151      (spotted by I. Hoteit, M. Mazloff)
152    o pkg/autodiff, pkg/ctrl:
153      Add flag to reduce all tapelev I/O to single-prec.
154      In data.ctrl set
155        doSinglePrecTapelev = .TRUE.
156    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
157      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
158    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
159      real fresh water flux (not yet)
160    o pkg/mdsio & rw:
161     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
162     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
163    o pkg/flt:
164     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
165       init_fixed & ini_varia.
166     - clean-up & simplify linear interpolation S/R:
167       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
168     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
169     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
170     - add vert. coordinate & horiz. indices to output files.
171     - change vertical position in initial condition, from index to depth [m].
172     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
173       (easier to get to a curvilinear grid) ; delX,delY no longer used.
174    o pkg/ggl90: a few modifications:
175     - fix bottom boundary condition, and interpolation of KappaE
176       near top and bottom
177     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
178     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
179     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
180    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
181      (maintain temporary backward compatibility, until next checkpoint)
182    
183    checkpoint61h
184    o pkg/diagnostics with "periodic averaging diagnostics":
185      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
186    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
187    o pkg/obcs: fix loop ranges for balancing code
188    o pkg/flt:
189     - improve criteria for finding which tile owns a float.
190     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
191    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
192      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
193      with ocean biogeo)
194    o pkg/flt:
195     - do some cleaning and fix the restart ;
196     - add output.txt in flt_example/results to get this pkg tested.
197    o genmake2: add an EXTENDED_SRC option and flag.
198       for now, cannot be turned on on command line (only through genmake_local)
199    o pkg/mdsio: read/write vector:
200     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
201     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
202       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
203     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
204      (drop to 4 digits matching for grad). But this test does not look very
205      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
206    
207    checkpoint61g
208    o pkg/flt:
209      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
210       + make OPTIONS file more standard.
211      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
212      - fix _BYTESWAPIO CPP-Flag
213      - standard reading of file-parameter "data.flt"
214      - fix argument list of S/R FLT_RESTART
215      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
216    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
217    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
218      a still unfixed compiler/optimization bug
219    
220    checkpoint61f
221    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
222      update results of global_ocean.cs32x15.icedyn test.
223    o move getcon.F from model/src to pkg/fizhi.
224    o pkg/exf: add parameter for extrapolation of temp up to the surface
225       and option to prevent negative evap (in bulk_largeyeager04 only).
226    o Prather Advection scheme: fix tracer conservation for divergent flow
227      (e.g., when using NonLin Free-Surface).
228    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
229    o gmredi (Visbeck-variable-K):
230     - add more parameters to Visbeck-variable-K.
231     - use a 5 points average for dSigmaR in Visbeck-K calculation
232       (more "homogenous": same stencil and same weights as in dSigmaH)
233     - update output of ideal_2D_oce experiment.
234    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
235      (#undef REAL4_IS_SLOW)
236     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
237       coordinate variable
238     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
239       (surface forcing fields), removes some of the functionality
240     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
241     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
242       probably not all: copy _RS surface flux fields to RL field before
243       calling DIAGNOSTICS_FILL
244     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
245       real*4 (CALL EXCH_*_RS) versions.
246     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
247       (generate new output).
248    
249    checkpoint61e
250    o gmredi (Visbeck-variable-K):
251      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
252      - change computation of Visbeck-K where Slope > Smax :        
253        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
254        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
255    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
256      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
257    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
258    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
259      does not become too large (to avoid precision problems in implicit-diffusion
260      solver); update ideal_2D_oce output.
261    o pkg ggl90:
262      - in ggl90_cal.F: compute only one set of visc/diff, used to
263        step forward TKE/T/S/momentum
264      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
265        have Prandlt =1)
266    o gmredi (fm07):
267      - add lower limit on Transition layer thickness + lower limit on 1/lambda
268      - allow to set few more params from data.gmredi
269    o pkg ggl90:
270          - add missing sqrt(2) factor in computation of mixing length
271            scale in ggl90_calc.F
272            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
273    
274    checkpoint61d
275    o adjoint modifs
276      - adapt to new field rhoInSitu
277      - allow to revert from StoreDynVars2D, StoreDynVars3D
278        to individual fields
279        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
280    o store 3-D (in-situ) density in commom block (DYNVARS.h)
281     - save 1 rho computation.
282     - no longer modify T & S inland when using down_slope pkg.
283    o gad_som : allow to switch to SOM advection for T & S without corresponding
284      pickup files (using new S/R: MDS_CHECK4FILE).
285    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
286      (for useSingleCpuIO to work in multi-threaded)
287    o pkg/shelfice:
288     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
289       with SHELFICEtopoFile in data.shelfice
290     - move code for reading ice shelf topography and modifying hFacC into separate
291       subroutines of the shelfice package
292     - separate initialisation of "fixed" and "variable" variables
293     - kTopC is not (yet) replaced by kSurfC, although this is possible
294    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
295    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
296      and rename:
297      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
298      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
299    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
300    
301    checkpoint61c
302    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
303      to add mass source/sink of fluid in the interior (3-D generalisation
304      of oceanic real-fresh water flux).
305    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
306    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
307    o new pkg: down_slope
308      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
309      - presently, modify T & S inland (dwnslp_calc_rho.F).
310        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
311      - implementation for ocean in P-coords not tested.
312      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
313    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
314      (to facilitate conversion of oceanic pkg to p-coordinate).
315    o change FIND_RHO to FIND_RHO_2D :
316      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
317    o new pkg: cheapaml
318    
319    checkpoint61b
320    o exch2:
321      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
322      - no longer depend on the order sequence (N,S,E,W).
323      - 3rd exchange no longer needed (tested with 24 tiles).
324      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
325      - exch_UV_A-grid readily available (but not yet tested).
326      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
327      (both are no longer needed) in exch_uv: no effect in forward run; but
328       get truncation error differences with adjoint exch.
329    o exch2:
330     - change index-bounds storage (moved from target to local tile,
331       more intuitive this way) ; rename/remove some variables.
332     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
333    
334    checkpoint61a
335    o exch2/matlab-topology-generator:
336      fix bug in index bounds for N-S internal exchange (hard to tell if this
337      had any effect on the solution).
338    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
339      is exceeded
340    o testreport: modify syntax of awk, so that it works also with
341      awk, and not only with nawk and gawk
342    
343    checkpoint61
344    o autodiff
345      Change default for TAF usage by removing argument '-nonew_arg'
346      This changes TAF subroutine argument list (ordering of active var.)
347      Omission of this flag leads to incompatibility w.r.t. TAMC
348      To restore TAMC-compatibility, need following modifs:
349      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
350      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
351      Tested TAF version is 1.9.22
352      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
353    
354    checkpoint60
355    --->>> This is the last checkpoint for which generating the adjoint
356    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
357    --->>> by default.
358    --->>> Future checkpoints will ommit this flag by default.
359    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
360    o pkg/grdchk: Add gradient check to etan0 perturbations.
361    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
362    o pkg/autodiff: more flexibility in zeroadj.
363      model/src: modifying do_oceanic_phys.F accordingly.
364    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
365    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
366      special setup of gmredi for which the adjoint is stable
367      enough for parameter optimization.
368    o bridging the gap between eddy stress and GM.
369      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
370          along with a change in CPP option (now ALLOW_EDDYPSI).
371      -> when using GM w/ GM_AdvForm:
372          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
373          is applied either in the tracer Eq. or in momentum Eq.
374          depending on data.gmredi (intro. GM_InMomAsStress).
375      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
376      The key modifications are in model/src/taueddy_external_forcing.F
377      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
378    
379    checkpoint59r
380    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
381      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
382      fix option to read coriolis(@ cell-corner) from files with CS-grid.
383    o pkg/mnc: add some attributes to standard 1D-coordinate variables
384    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
385      mass points, when using mnc for output
386      - add runtime parameter (missing_value, missing_value_int) to override
387        default (which is the value of getcon('UNDEF'))
388    o pkg/mnc: prepare mnc for the actual use of missing values with the
389      diagnostics package: small fix in mnc_cw_readwrite.template and more
390      initialisation of never used fields
391      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
392      versions
393    o pkg/thsice/thsice_ini_vars.F added default initial values so that
394      thermodynamics sea ice solver does not blow up when some initial fields
395      are missing.
396    o move from external_forcing_surf.F to ini_forcing.F
397      the p-coord. hack consisting in using pLoad to set phi0surf ;
398      update output of tutorial_global_oce_in_p (affected @ truncation level).
399    o Freshen up a bit hs94.1x64x5, notably:
400      remove rotationPeriod and tRef=5*0. (adjoint only), and add
401      exactConserv=.TRUE.
402    o pkg/generic_advdiff:
403      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
404      applies to files where Temperature & Salinity 2nd Order moments are used.
405    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
406      this uses a dynamically allocated internal state data structure
407      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
408      and requires a fortran 90 compiler
409    
410    checkpoint59q
411    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
412       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
413    o Refresh tutorial_global_oce_biogeo, notably:
414      - change bathymetry (put back seamounts in ACC, use hFacs)
415      - change EOS (POLY3 --> JMD95Z)
416      - use Bryan-Lewis vertical diffusivity
417      - use multidimensional advection
418      - remove old virtual virtual in dic pkg, now done through ptracer pkg
419      - change a couple of parameters in dic pkg
420    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
421    o pkg/obcs: change default to OBCSfixTopo = .true.,
422      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
423      - replace "debugMode" with "debugLevel .GE. debLevB"
424    o implementation of TAF directives for gchem,cfc,dic
425    o remove "exp5" (replaced by tutorial_deep_convection).
426    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
427      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
428      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
429      --> changes results in exp4, seaice_obcs
430    o tutorial_deep_convection :
431      update the set-up and increase resolution and domain size ; start
432      from pseudo initial conditions = output at t=120mn in order to see
433      something happening when running testreport.
434    o pkg/seaice: add os7mp as an advection scheme
435                  add check for advection schemes
436                  add a flag for restoring T and S underneath sea ice
437    o pkg/my82: add netcdf-support and diagnostics
438    o thsice pkg:
439      - Now hsMax limits snow height by turning it into ice following
440        flooding scheme (and now conserving energy)
441      - Slight rewriting of the formula in thsice_calc_thick.F
442      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
443      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
444    
445    checkpoint59p
446    o gchem / dic / cfc :
447      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
448      - add new parameter files: "data.dic" & "data.cfc" ;
449      - various re-arrangement in initialisation & header file ;
450      - fix tutorial_global_oce_biogeo for multi-threaded test.
451    o pkg/dic: test for "pickup_dic" file when restarting ;
452      if no pickup-file, can restart with a re-initialised pH (same as it did
453      before) providing pickupStrictlyMatch is set to False.
454    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
455      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
456    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
457      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
458    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
459     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
460       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
461    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
462       scheme to use for vorticty-term ;
463     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
464       (with default selectVortScheme, return to original discretisation)
465     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
466    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
467    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
468      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
469      also fix diagnostics VISCAHW & VISCA4W.
470    
471    checkpoint59o
472    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
473    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
474      move a few statemens out the main loop into separate loops
475    o pkg/shelfice:
476      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
477        (kg/m^2/s), does not break tests, because in verification/isomip,
478        rhoConstFresh=rhoConst (by accident)
479      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
480      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
481        new file model/src/seawater.F, so that they are available for all pkgs.
482      - convert potential temperature into in-situ temperature. This changes the
483        isomip tests => update tests
484    o add a flag writePickupAtEnd (default=true) to be able to suppress
485      writing a pickup at the last timestep
486    o tools/mpack-1.6 :
487      - disable automake (not working) and autoconf (not needed).
488      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
489        also cleaner with much less compilation warnings.
490    o pkg/profiles:
491      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
492      (for "less than 32 characters name" compiler requirement)
493    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
494      conditions that have a different sampling frequency than S/T/U/V obcs
495    o pkg/diagnostics (stats-diags):
496      - fix global Min/Max in case 1 processor get only empty tiles
497    o genmake2: replace (4 times)
498         make genmake_tc_1.o >> genmake_warnings 2>&1
499      with
500         COMM="$CC $CFLAGS -c genmake_tc_1.c"
501         echo $COMM >> genmake_warnings
502         $COMM >> genmake_warnings 2>&1
503      to make genmake2 always see the value of CC as specified in the optfile.
504    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
505      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
506      - modify verification advect_cs test to test SOM-advection on CS-grid.
507    o pkg/ctrl:
508      - Rewrite of ctrl_map_ini_ecco.F,
509        introducing a generic routine (ctrl_map_ini_gen.F).
510      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
511    
512    checkpoint59n
513    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
514      number in dedicate array "hdiag":
515      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
516        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
517      - many small changes (integer format) for large number of diagnostics
518      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
519        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
520    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
521      usingSphericalGrid, this allows to define the rotated grid coordinates
522      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
523      geographical coordinates according to the inverse of the rotation defined
524      by the Euler angles, so that Coriolis parameter and online-interpolation by
525      exf works with the geographical coordinates on XC/YC/XG/YG.
526      Naturally, this feature does not work with all packages, so some
527      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
528      profiles), because there the coordinates are assumed to be regular
529      spherical grid coordinates.
530    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
531      - introduce isopycnal diffusion coefficient control.
532    o tools/adjoint_options:
533      - additional control vector components.
534    o pkg/mnc: have mnc create marginally meaning full coordinate variables
535      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
536    o pkg/mypackage:
537      - add example of read/write pickup for state-var ;
538      - add entry points to the main code for state-vars diags & write-pickup.
539    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
540      transitions for useExfYearlyFields
541      - add new subroutine that determines the file to read from for
542        use*YearlyFields = .TRUE. and .FALSE.
543      - add a verification experiment to global_with_exf that tests
544        useExfYearlyFields with USE_EXF_INTERPOLATION defined
545    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
546      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
547      subroutines (which could be generated from a template, because they are
548      almost identical), for now they are included in obcs_prescribe_read.F for
549      simplicity
550    o pkg/exf:
551      - add a little more diagnostic to exf_interp_read (in analogy to
552        mds_read_field, can be turned off with debugLevel < debugLevA=1)
553      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
554        ugly but fast by unrolling short inner loops, inserting a unroll=8
555        directive in routine lagran, and splitting a loop and making do while the
556        outermost loop (the latter requires the intoduction of index arrays)
557    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
558    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
559      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
560    o verification/seaice_obcs: updated for restart test and latest options
561    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
562      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
563      for now this is only available for the C-grid code and also within
564      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
565    
566    checkpoint59m
567    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
568      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
569    o gad_som : fix flux output (& diagnostics) to have same units as other  
570      advection scheme fluxes (was previously multiplied by deltaT).  
571    o added verification/seaice_obcs both to test seaice open boundaries
572      and to provide an example matlab scrpt for generating them
573    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
574    o pkg/salt_plume: clean up salt_plume_frac.F to
575      remove redundancy in PlumeMethod 1 and 4
576    o pkg/kpp: added saltplume diagnostics
577    o pkg/obcs and pkg/seaice:
578      - do not set uice and vice to zero when OB*icefile are unspecified
579      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
580      - moved seaice tracer obcs after call to seaice_growth
581    o pkg/salt_plume: added various options for salt plume depth
582      criterion and for vertical distribution of the salt
583    
584    checkpoint59l
585    o pkg/ptracers: new version of ptracers pickup:
586      read meta file and write only fields which are needed to restart.
587      ( same logic as main pickup file ; also using pickupStrictlyMatch )
588    o pkg/seaice:
589      - add timescale for melting due to warm mixed layer as a means of
590        setting SEAICE_availHeatFrac more conveniently
591      - add a CPP-flag/runtime parameter check for flooding algorithm
592      - reformulated availHeat in seaice_growth.F to be independent of AREA
593    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
594      unit changes
595    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
596    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
597      SX vector computer.
598    o pkg/seaice:
599      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
600        seaice forcing fields can now be read only through pkg/exf
601      - removed some unused halos
602    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
603    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
604      or U/VICE from U/VWIND before computing U/VSTRESS
605    
606    checkpoint59k
607    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
608      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
609    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
610      all experiments pass when compile with un-initialised var. checking option.
611    o added pkg/salt_plume
612    o script to test restart (for now, in MITgcm_contrib/jmc_script)
613    o pkg/seaice: new read/write pickup version.
614      read meta file and write only fields which are needed to restart.
615      ( same logic as main pickup file ; also using pickupStrictlyMatch )
616    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
617    o lab_sea.hb87: modify the domain & update output.hb87.txt :
618      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
619      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
620      process. Fixed here by closing the domain at the Northern boundary.
621    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
622    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
623      a set of consecutive levels in/from a 3-D array.
624    o pkg/ptracers:
625      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
626      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
627    
628    checkpoint59j
629    o in pkgs: dic, obcs, offline, rbcs:
630      standard way to compute coeff. for time interpolation between 2 time reccords
631      which retains full precision (& make results less dependent on compiler).
632      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
633    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
634      packages instead of reading ice cover and wind speed separately
635    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
636     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
637      to allow to compile customized code before the update)
638    o cleaning-up:
639      - fix CPP instruction syntax in pkg/obcs
640      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
641        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
642      - fix some threads issue in IO parts.
643    o pkg/dic:
644      - add tons of "_d 0" (--> much better testreports !)
645       and then update outputs of tutorial_global_oce_biogeo
646    o pkg/mom_fluxform:
647      add a special version of momentum advection intended to conserve momentum
648      next to a bathymetry step or a coastline edge. (default = off = #undef)
649    o new read/write pickup version:
650      - for now, only implemented for main (mdsio) pickup file.
651      - write out only what is needed to restart; merge pickup_nh , pickup_ph
652        and main pickup together.
653      - read meta file; read only what is needed to restart; stop if a field
654        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
655        if it make sense (even if the restart is not perfect).
656      - if no meta file, assume that pickup to read corresponds exactly to
657        a pickup that would currently be written.
658      - read pickup written in the old format (until checkpoint59i) if it
659        recognizes an old meta file (no field-list).
660      - add a meta file in exp. which starts from a pickup: 2 cases:
661        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
662         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
663        b) a meta file describing the content of the associated pickup file
664         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
665    o pkg/mdsio & pkg/rw:
666      - new routine to read a meta file ; new set of routine to read
667        Multiple-fields file (with meta file).
668    o added open boundary conditions capability for seaice
669        HSNOW, HSALT, UICE, and VICE
670    
671    checkpoint59i
672    o adjoint:
673      * fix multiDimAdvection adjoint
674        (partial recomputation problem by TAF for fVerT(:,:,kDown)
675        and comlev1 size definition (maxpass vs. max. number of tracers)
676      * verification/global_ocean.90x45x15 adjoint now tests
677        NLFS and multiDimAdvection using DST3 (=30)
678      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
679    o pkg/kpp: add "_d 0" to real constant (if missing);
680      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
681      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
682    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
683      for internal parameters related to restart process (formerly from PARAMS.h)
684      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
685    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
686      as argument. (only atm2d & obcs write_pickup have not yet been updated)
687    o pkg/monitor:
688      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
689      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
690      - account for deep Atmosphere factor and density factor (anelastic)
691    o added open boundary conditions capability for seaice HEFF and AREA
692    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
693      thermodynamics
694      - requires a little reorganization, which affects the testreport results
695        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
696        so that now the conservative form is tested
697      - add a few comments
698    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
699    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
700    o add new diagnostics to seaice: advective, diffusive fluxes (only for
701      multidim-advection, for scheme 2 they are not filled) and transports,
702      thermodynamic growth rates
703    o change units of EmPmR (inside the code, + within coupling interface)
704      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
705      Affects results @ truncation level (cg2d match) and update output of
706       experiments: lab_sea(6), global_ocean.90x40x15(10),
707      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
708      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
709      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
710      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
711    
712    checkpoint59h
713    o pkg/exf:
714      - improve vectorization by moving if-statement out of loops in
715        exf_mapfields, exf_radiation
716      - exf_bulkformulae.F: introduce 2D fields and vectorize code
717    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
718    o testreport:
719      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
720        monitor & update offline_exf_seaice exp. output.
721      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
722    o pkg/seaice:
723      - bug fix in the evp solver: boundary conditions were affected be
724        masking of zMax/zMin (changes results)
725      - minor bug fix in boundary conditions in seaice_calc_strainrates
726        (changes results for no_slip)
727      - seaice_lsr.F: make interpolation of eta dependent on boundaries
728      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
729      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
730        stress formulation and no-slip boundary conditions
731    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
732      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
733    o pkg/seaice: a first HSALT time stepping equation has been checked in
734    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
735      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
736      without requiring DO-IF statements
737    o pkg/thsice:
738      use continuous power-law function for partition of energy between lateral
739      melting/freezing and thinning/thickening ; old code using step function
740      still available with #undef THSICE_FRACEN_POWERLAW
741      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
742    o testreport: change AD testing : check against results/output_adm.txt
743      using same scripts as for forward test.
744    
745    checkpoint59g
746    o adjoint testing: in preparation for changing testreport:
747      - output format: cost and grad written on separated lines
748      - ad output results in directory "results" (instead of "results_ad")
749    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
750    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
751    o pkg/ecco: allow user defined cost function contributions
752    o testreport:
753      Allow to choose (per experiment) the list of tested output variables
754       and the main variable (used to issue a pass/FAIL ) ;
755      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
756      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
757      Also modify printing of summary:
758       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
759       b) echo the list of tested variables in the individual summary.txt of
760          each experiment.
761    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
762      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
763      (but still depend on the tile decompostion of the domain).
764    o pkg/seaice: change a discretization detail to make the B-grid code
765      "more symmetric". This change is likely to remove all "ridges/leads" that
766      where quasi-aligned with the grid in B-grid solutions. It may also be
767      the solution to the stress coupling issues with the B-grid.
768    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
769      remove .cvsignore from input dir. (since testreport no longer run here).
770    o pkg/thsice:
771     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
772     - fix reshaping of sea-ice just after advection:
773       melt all the ice only if ice-volume is too small.
774     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
775       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
776     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
777    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
778      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
779    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
780      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
781      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
782      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
783      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
784      -> update output.txt
785    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
786     this affects truncation error: -> update output.txt of exp:
787      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
788      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
789    
790    checkpoint59f
791    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
792    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
793      a bounded range (in forward mode)
794    o pkg/ecco, ctrl, autodiff and mom_common:
795     internal parameter controls, completements of implementations
796    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
797    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
798      (not seem any difference in testing results).
799    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
800       at face corners.
801    o pkg/generic_advdiff:
802     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
803      loop range indices for computing vertical advection tendency
804      and do the calculation in the interior only (no overlap) ;
805      for now, only implemented for SOM advection (to save CPU time).
806     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
807    o exch2 adjoint
808      First set of changes:
809      - add exch2 hand-written adjoint templates
810      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
811        This will require cleanup in pkg/autodiff/*.F
812        (changed routines currently kept separate in verif. code/)
813      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
814        that used to hide exch2 or cubed-sphere specific code
815        (commented via 'cph-exch2')
816    o pkg/seaice
817      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
818    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
819       output of global_ocean.cs32x15.thsice .
820    
821    checkpoint59e
822    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
823      for B-grid vector (not yet tested) and C-grid vector (<- only used
824      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
825    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
826      (#ifdef ALLOW_SALT_PLUME)
827    o gather_2d/scatter_2d: removed halo regions
828    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
829      scheme and the corresponding test case (under front_relax dir). For now,
830      only available with Skew-flux form and not yet tested in realistic set-up.
831      adjoint: store directives updated, but gradient checks deteriorated,
832      so maybe GM/Redi adjoint is now broken.
833    o seaice adjoint
834      * add AREA, HEFF, HSNOW as control variable
835        (should not change lab_sea results)
836      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
837    o pkg/seaice:
838      * added computation of saltFlux in seaice_growth;
839        For time being, sea ice salinity is assumed constant
840        contribution of snow flooding to freshening of sea ice is neglected.
841        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
842        defaults to 0.0 in order to maintain backward compatibility.
843        Typical values for SEAICE_salinity are 4 to 10 g/kg.
844      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
845      * added SEAICE_availHeatFrac, which specifies fraction of surface level
846        heat content used to melt or grow ice
847      * commented out cap of HICE: it helps keep ice thinner
848      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
849      * applied OBCS T/S mask to HEFFM sea ice mask
850    
851    checkpoint59d
852    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
853     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
854     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
855    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
856     and change default value of parameter "GM_Small_Number";
857     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
858       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
859       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
860    o pkg/ecco: cost function when applying pkg/smooth to controls
861    o pkg/ctrl: add forcingPrecond run time parameter
862    o pkg/seaice:
863     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
864     - fix bug in metric terms of u-equation in LSR solver (implicit part),
865       changes verification/lab_sea
866     - rearrange implicit part of u-equation in LSR solver to make it easier to
867       read, understand, and debug. This causes changes at the truncation level.
868     - fix (serious) bug in the boundary conditions (sign error in the implicit
869       part) of the LSR solver. Changes all LSR results.
870     - fixed problem with HSNOW initialization to avoid thick snow when AREA
871       is initilized with small values - does not change lab_sea results.
872     - added HsnowFile initialization capability
873    o pkg/smooth: addition to model/src and pkg/ctrl so allow
874     initialization of pkg/smooth and application to control vector
875    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
876    o dependencies: pkg/profiles requires pkg/cal
877    o pkg/profiles:
878     - added option ALLOW_PROFILES_GENERICGRID
879         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
880         that interpolation information (grid points and coefficients) is provided
881         within the netcdf input files.
882         -> sample matlab scripts can be found in MITgcm_contrib/gael
883         that allow you to prepare netcdf input files.
884     - also modified: cleaner include statements, cleaner error print statements,
885       cleaner stops when error, and more tests of the netcdf input files consistency.
886    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
887    o pkg/seaice:
888     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
889       requires a new routine: seaice_diagnostics_fill.F
890     - make sure that seaice does not move if not forced (pressure replacement
891       method, Hibler and Ip, 1995), changes results
892     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
893     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
894       It is turned off by default (=-1.), because it changes the results.
895     - make it possible to read AREA from a file, too.
896    
897    checkpoint59c
898    o add S/R and diagnostics for oceanic mixed-layer depth
899    o move GMRedi call after all vertical mixing schemes (including KPP)
900    o pkg/thsice:
901     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
902      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
903    o pkg/obcs:
904     - bug fix for balance code
905    o pkg/seaice:
906      - allow values of SEAICE_elasticParm > 1
907      - add new parameter SEAICE_evpTauRelax as an alternative
908        to SEAICE_elasticParm
909      - make lsr boundary conditions free slip (by default), changes result
910      - add code for no slip boundary conditions for lsr
911      - set minimum of zeta to zero (and not 4e8) (changes results)
912      - add a cap on AREA after advecting AREA if seaice_growth is not called
913    o change calculation of Visbeck K:
914      - no longer depend on tapering scheme; instead, compute slope (limited
915        by GM_maxSlope). this is equivalent to what was comuted before with
916        clipping or linear tappering.
917      - fix vertical averaging (wrong by 1/2 level)
918      - leave the old version (but will not be maintained) within
919        #ifdef OLD_VISBECK_CALC / #endif
920      - update output of exp. ideal_2D_oce
921    o change error catch in calc_r_star to improve vectorization
922    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
923      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
924    o adjoint:
925      Re-organized adjoint checkpointing according to Matt Mazloff
926      (but with modifs/completions/cleanups)
927      Storing is now bundled into large arrays to optimized I/O
928      (and second step in cleanup of the_main_loop)
929    
930    checkpoint59b
931    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
932      - export/import (between ocean & coupler) fields needed for ocean DIC.
933    o pkg/seaice:
934      - get rid of three more exchanges seaice_calc_viscosities (required
935        different loop boundaries in seaice_lsr and seaice_ocean_stress)
936      - bug fix in seaice_ocean_stress (update of lab_sea required)
937      - reduce loop boundaries to necessary minimum also in seaice_evp
938      - go back to the old way of computing deltaC/Z as the adjoint likes that
939        better
940    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
941      passive tracer to an Age Tracer) + update output.txt
942    o pkg/exf:
943      - implement A-grid / C-grid selection for wind-stress input files.
944      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
945      for now, in exf_bulk_largeyeager04.F only :
946      - change implementation for case where windspeed + 2. components wind-stress
947        are read-in. AND use rhoConstFresh to convert evap.
948    o pkg/seaice:
949      - use correct EXCH_UV for wind-forcing (on A-grid).
950      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
951        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
952    o pkg/exf:
953      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
954      EXF_INTERPOLATION:
955      - merge global_with_exf/code version of exf_interp_read.F
956        to the main code ;
957      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
958        reading the file ; Important: This options needs to be defined to recover
959        previous code.
960        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
961      - no longer loose real*8 precision along the way when using exf_iprec=64.
962    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
963      - change discretisation of evp-solver in order to avoid another exchange
964        (changes lab_sea) and clean up a little
965      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
966        help the adjoint (this also changes the results slightly)
967      - add a few "_d 0" where they had been missing in seaice_evp.F
968      - cleaning up: remove unused seaice_calc_rhs.F
969    o pkg/exf: some cleaning-up:
970      - change various "constants" into runtime parameters
971      - cleaned-up Large&Yeager04 routine which should eventually
972        replace exf_bulkformulae.F (changed names of S/R and CPP)
973        and merged various ALLOW_ATM_WIND options
974     only used with thsice pkg (in thsice_get_exf.F):
975      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
976        which are used when useStabilityFct_overIce=TRUE (= the default)
977      - change default values of ice & snow emissivity and scale downward LW
978        by ice & snow emissivity.
979    o pkg/thsice:
980     fix few little problems, in thsice_calc_thickn.F:
981      - growth vertically (and not laterally) if iceFrac == iceMaskMax
982      - melt only laterally if hIce < hThinIce (as the comments say)
983      and in thsice_extend.F:
984      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
985      - start to form ice as soon as the minimum ice-volume is reachable.
986     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
987      and cpl_aim+ocn
988    o pkg/kpp
989     - move computation of surface related input fields to KPP into a new
990       subroutine kpp_forcing_surf.F
991     - remove wrong (within bi,bj loops) EXCH calls.
992     - little cleaning (add argument myThid in last position, cvs header ...)
993     - for now, fix conservation problem by exchanging KPPviscAz (may not
994       be the best fix)
995    o pkg/seaice
996     - check for inconsistent evp parameter/cpp-flag combination
997     - remove leftover errIO flat for obsolete name list error handling
998    o OpenAD
999     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1000    
1001    checkpoint59a
1002    o pkg/seaice: some parameter clarifications and a little bit of clean up
1003    o pkg/thsice: rename run-time parameters:
1004       himin       -> hIceMin
1005       himin0      -> hThinIce
1006       hihig       -> hThickIce
1007       i0          -> i0swFrac
1008       transCoef   -> bMeltCoef
1009       frac_energy -> fracMelting
1010      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1011       with default values (for now) that do not change the results.
1012      remove old version of thsice vars advection in pkg/seaice.
1013    o in FFIELDS.h:
1014      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1015      - make pLoad & sIceLoad always available (but still only used if
1016         ATMOSPHERIC_LOADING is #define).
1017    o pkg/kpp: replaced _KPP_RL with _RL
1018    o bug fixes for vertical diffusivity computations when both KPP and
1019        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1020        are no longer updating the vertical diffusivity array
1021        (passed as argument) but are (re-) setting those arrays.
1022    o pkg/seaice: fix bug in evp solver, while doing that
1023      - change (improve?) discretization of stress computations for both
1024        cgrid-lsr and evp solver
1025      - add a new routine to compute strain rates
1026      - the above changes lab_sea results
1027      - add no slip conditions for evp solver (off by default), lsr-version
1028        may follow
1029      - fix exchange for shear at Z-points (does not change lab_sea)
1030      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1031        (to force the user to pick a time step since there is not "safe" way
1032        of choosing it)
1033      - add principal stress diagnostics
1034      - rearrange fields for evp a little to avoid having to call a: too many
1035        exchanges and b: exchanges for stress trensor components which we do
1036        not have.
1037      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1038        of evp, complete rewrite for lsr case (latter is does not yet work
1039        in all cases)
1040    o pkg/kpp: add code to have mixing in shelf ice caverns
1041      - add myThid to all kpp routines (long overdue)
1042    
1043    checkpoint59
1044    o pkg/exf:
1045      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1046        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1047      - move exf header files from lower_case.h to UPPER_CASE.h ;
1048        add missing cvs Header & Name
1049      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1050      - add namelist param. selectStressGridPosition, exf_monFreq
1051      - retire many _CLIM routines, and remove data.exf_clim
1052        + params moved to data.exf
1053        + climsst, climsss now handled by exf_set_gen, i.e.
1054          climss?period=0 refers to constant field,
1055          climss?period=-12 to monthly forcing
1056      - split up namelists in data.exf
1057    o pkg/seaice:
1058      - remove seaice_exch and seaice_exch_uv
1059      - remove superfluous exchange of theta
1060      - add myThid to seaice_budget_ocean/ice
1061      - add new interface for atmospheric wind forcing (C-grid only)
1062        + new routine
1063        + two new field (taux, tauy for stress over ice)
1064        + removed one global field (DAIRN) for C-grid case only
1065    o pkg/thsise
1066      - 2nd set of modifs for thsice adjoint in conjunction with exf
1067    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1068    
1069    checkpoint58y_post
1070    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1071      vertical diffusivity, similar to that in MOM4; turned on using
1072      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1073      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1074    o Added capability for 3D specification of background vertical diffusion
1075      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1076      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1077      "data" file that contains the 3D vertical diffusivity coefficients.
1078    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1079      - add code within pkg thsice to advect & diffuse sea-ice fields
1080      similar to (and will replace) what has been added in  seaice_advdiff.F,
1081      but: - conserving Mass, Heat & Salt.
1082           - better when using non-linear advection scheme (not yet fully tested)
1083           - can also be used in atmospheric set-up (for now, only the diffusion).
1084    
1085    checkpoint58x_post
1086    o IO option for global-file compact format:
1087      - add options when generating topology (utils/exch2/matlab-topology-generator)
1088      - add I/O capability (pkg/mdsio).
1089      - adapt utils/matlab/rdmds.m to read this format.
1090      for now long-line format not yet supported by pkg/mdsio (& exch2).
1091    o shelfice: add a few diagnostics
1092    
1093    checkpoint58w_post
1094    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1095      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1096      (and replace horiVertRatio in NH code).
1097      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1098                         and tutorial_plume_on_slope (sensitive to truncation)
1099    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1100      directly to drive seaice model (C-grid only)
1101    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1102     - reintroduce computation of wind from stress,
1103     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1104       mass points to avoid tau = 0
1105     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1106    o rdmnc.m: make it work with "global" files created with gluemnc
1107    o rdmnc.m : some improvements in dealing with singleton dimension
1108      (tested on all testreport mnc output files).
1109    o genmake2: disable pkg/profiles if netcdf test fails.
1110    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1111    o move call to cal_readparms up to make calendar parameters/variable available
1112      to all packages
1113    
1114    checkpoint58v_post
1115    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1116      useDynP_inEos_Zc tested.
1117    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1118    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1119      and portions thereof.  See read_cs.txt for description and examples.
1120    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1121      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1122      following the great-circle arc between those 2 points.
1123    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1124      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1125    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1126     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1127     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1128     - still needs work (not working with some options ; efficiency to improve)
1129       and serious testing.
1130     - use this scheme for temperature & salinity in 2 advection test exp.:
1131       advect_xy & advect_xz, respectively.
1132    
1133    checkpoint58u_post
1134    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1135    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1136    o testreport: add option "-skipdir" to skip some test.
1137    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1138      momentum calculation.
1139    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1140    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1141      remove checkpoint.F and the_correction_step.F (no longer used);
1142      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1143    o add option (linFSConserveTr) to correct for tracer source/sink due to
1144      Linear Free surface
1145    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1146    o pkg/thsice: fix reading mnc-pickups
1147    
1148    checkpoint58t_post
1149    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1150    o pkg/mdsio:
1151     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1152       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1153       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1154     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1155     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1156       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1157     - new S/R (to replace MDSWRITEMETA), which allows to write more
1158       informations (variable names, time ...) to meta files.
1159     - modify rdmds.m to give back the meta file content.
1160    o pkg/diagnostics: change vertical interpolation to be safer, and more
1161       flexible (define p-levels to interpolate to in data.diagnostics);
1162      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1163       diagnostic pointer.
1164    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1165    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1166    o fix multi-category seaice:
1167     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1168       SEAICE_MULTICATEGORY
1169     - fix short wave heat flux
1170    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1171       and allow to use EVP solver. Change forward lab_sea: test both EVP
1172       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1173    o Initial check-in of lab_sea adjoint
1174      (very similar to natl_box_adjoint/code_seaice)
1175      * used C-grid and EVP solver
1176      * used KPP, GM/Redi
1177      * uses inAdExact=.TRUE.
1178      * gradient checks fail for both ADM and TLM
1179        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1180        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1181        issue is related to forward mismatch between g77 an ifort
1182    o pkg/seaice: overhaul of thermodynamics
1183     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1184     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1185     - move a few global fields out of SEAICE.h into seaice_growth.F and
1186       make them 2D (FICE/QNETO/ ...)
1187     - remove FO (it is the same as QNETO)
1188     - introduce a few local fields to avoid modifying external fields such
1189       as atemp, etc.
1190    
1191    checkpoint58s_post
1192    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1193      changed exf_set_gen.F so that
1194        genperiod=0 means input file is one time-constant field and
1195        genperiod=-12 means input file contains 12 monthly means
1196    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1197      this affects truncation error ; generate new output file for exp. which
1198      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1199        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1200        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1201        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1202        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1203        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1204    o start implementation of deep-atmosphere and anelastic formulation
1205    o verification: remove 2nd copy of input files and use script "prepare_run"
1206      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1207    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1208    o profiles: fix for multithreaded case
1209    
1210    o diagnostics: rename few diags:
1211      s/'PRESSURE'/'RCENTER '/g
1212      s/'TICE    '/'oceFreez'/g
1213      s/'TAUX    '/'oceTAUX '/g
1214      s/'TAUY    '/'oceTAUY '/g
1215      s/'SWFLUX  '/'oceQsw  '/g
1216      s/DIFx/DFxE/g
1217      s/DIFy/DFyE/g
1218      and add few ocean-forcing diagnostics:
1219      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1220    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1221      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1222      as actual snow thickness.  It now refers everywhere to effective snow
1223      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1224    
1225    checkpoint58r_post
1226    o modifications to pkg/seaice/growth.F, which change results of
1227      lab_sea experiment: fixes pertain to melting snow over open water, to
1228      masking EVAP under sea ice, and to using the correct AREA variable for
1229      computations of EVAP, PRECIP, HSNOW, and GHEFF
1230    o add ability to read bathy, salt, and theta using MNC (off by def)
1231    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1232      both are turned off by default and do no change any results
1233    o seaice advection with pkg/thsice: a step toward the use of non-linear
1234      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1235    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1236      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1237      in natl_box (affects results @ truncation level: update output.txt)
1238    o multi-threading and IO:
1239      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1240      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1241        (needed to work with SingleCpuIO): tested in all verif. exp.
1242    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1243      affects the results (but none of the verification test uses this scheme).
1244    o Adding some pkg/diagnostics capability to pkg/seaice
1245      (will certainly be subject to changes)
1246    o ctrl: adding new control variables:
1247      lwflux, lwdown, evap, snowprecip, apressure, runoff
1248    
1249    checkpoint58q_post
1250    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1251      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1252      high_res_cube configuration by 4% on Columbia.
1253    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1254      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1255      dynamical allocation (seems to work in multi-threaded).
1256    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1257      single CPU io) so that TAF does not have to see EESUPPORT.h
1258    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1259    
1260    checkpoint58p_post
1261    o obcs: stop if obcs is used with useCDscheme = .true.
1262    o shelfice:
1263     - fix a sign error so that no slip at shelfice interface works
1264     - remove stop for combination non-hydrostatic code and shelfice. That does
1265       not mean, that the results are correct, but at least they are numerically
1266       stable
1267    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1268    o added adjoint exch routined for all exch*3d* routines
1269      and updated flow directives
1270    
1271    checkpoint58o_post
1272    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1273      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1274    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1275      and clean-up reading/writing of pickup files.
1276    o fix local version of read/write pickup (NH part) in rotating_tank/code
1277    o simplify EXCH interface:
1278     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1279     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1280    o added the regrid package
1281    o shelfice:
1282     - add a simple boundary layer scheme to reduce noise
1283     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1284    
1285    checkpoint58n_post
1286    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1287       local variable (not in common block).
1288    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1289      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1290      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1291        to work with SingleCpuIO.
1292    o add "_d 0" to real constant of pkg/cfc subroutines ;
1293       update exp. cfc_exemple & tutorial_cfc_offline output files.
1294    o multi-threading and IO:
1295      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1296        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1297      - barrier before and after reading.
1298      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1299      - avoid using MDS_WRITELOCAL for LAND pkg output.
1300      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1301        common-block variables ; Allows multi-threading with master-thread IO.
1302    o change default MAX_NO_THREADS from 32 to 4 ;
1303      and stop cleanly when MAX_NO_THREADS is too small.
1304    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1305    
1306    checkpoint58m_post
1307    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1308       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1309    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1310       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1311       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1312    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1313        add MITgcm_tutorials (= code + all the tutorials)
1314    o ecco, option to compute cost for total ssh (mean+anom)
1315    o consistent with addition of ptracer and ssh in pkg/profiles
1316    o profiles: adding ptracer and ssh
1317    o testreport: change multi-test output-file name
1318      (from output.txt.{name} to output.{name}.txt)
1319    o profiles: now ok for mutli-tiles case
1320    o seaice: add 4 parameters for different advection schemes for area,
1321      (effective) seaice thickness, enthalphy, and snow height. Their default
1322      is the standard parameter SEAICEadvScheme
1323    o calc_gw:
1324     - add cosFacU in zonal viscous flux (harmonic.visc.).
1325     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1326       of tutorial_plume_on_slope.
1327    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1328    o calc_gw: true flux-form, account for horizontal grid spacing.
1329      update rotating_tank results, but not plume_on_slope (affected at
1330      truncation level, 11 digits).
1331    
1332    checkpoint58l_post
1333    o calc_gw:
1334     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1335     - remove side-drag for now (need to fix it); update plume_on_slope results.
1336     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1337    o commit code to make SST/SSS weights spatially variable
1338      (based on either variable in-situ or variable initial T/S weights)
1339    o pkg/ecco:
1340      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1341        now based on horizontally varying weights wthetaLev, wsaltLev
1342      * cost_averagesflags now returns year indices in addition to day, month
1343      * sflux balance is performed on annual basis
1344        (sflxumm, sfluxmm2, bal_sfluxmm)
1345      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1346        including separate counting and multipliers
1347    o pkg/rbcs
1348      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1349    
1350    checkpoint58k_post
1351    o testreport:
1352     - always build in dir. "build" (if not there, mkdir build instead of building
1353       & running in input)
1354     - run in dir run (if it exists), in build otherwise.
1355     - call prepare_run (if input/prepare_run exists)
1356     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1357    o pkg/exf modifications to interpolation and rotation routines for more
1358       reasonable treatment of North Pole singularity: for tracers North Pole
1359       value is set to northernmost zonal-mean value, for zonal velocity it is
1360       set to zero, and for meridional velocity it is set to northernmost value.
1361    o pkg/exf/exf_check_range.F
1362     - add tile index to diagnostics and move stop statement to the very
1363       end of the routine.
1364    o pkg/diagnostics: (diagnostics_main_init.F)
1365      define title of isomorphic variables according to the current config.
1366    o pkg/thsice with pkg/seaice dynamics:
1367    - fix domain of computation (interior only, required for exf) and do exchanges
1368    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1369    o towards a standard way of dealing with multi-threading in MONITOR
1370      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1371    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1372       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1373    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1374    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1375    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1376       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1377    o tracer advection:
1378     - clean-up and simplify calc_common_factors.F
1379     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1380       advection subroutine (but still not used within DST advection S/R)
1381    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1382    
1383    checkpoint58j_post
1384    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1385      from file (collects calls previously in FORWARD_STEP)
1386    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1387    o adjoint store dir. adjusted accordingly
1388    o genmake2
1389      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1390    
1391    checkpoint58i_post
1392    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1393      on wind stress (SEAICEstressFactor defaults to 1.)
1394    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1395      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1396    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1397      on CS-grid: no longer loosing mass.
1398    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1399    o pkg/ggl90: fix sloppy output and fix a bug
1400    o pkg/seaice: added SEAICEuseEVPpickup parameter
1401      - Set to false in order to start EVP solver with
1402        non-EVP pickup files when using SEAICEuseEVP
1403      - fix sign error in diffusion in seaice_calc_rhs
1404    
1405    checkpoint58h_post
1406    * Modifications for bottom topography control
1407      o replace hFacC by _hFacC at various places
1408      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1409      o add non-self-adjoint cg2d_nsa
1410      o update autodiff support routines
1411      o re-initialise hfac after ctrl_depth_ini
1412      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1413    * Adding verification for 5x5 box (4-layer) bottom topography control
1414    
1415    checkpoint58g_post
1416    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1417       used for mean seasonal cycle, mean diurnal cycle); add an example
1418       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1419    o pkg/ggl90:
1420      - add parameter (minimum surface kinetic energy)
1421      - fix bug (avoiding division by zero)
1422    o couple pkg/thsice to pkg/seaice:
1423      - modify advection in seaice to accomodate new scalar fields to be advected
1424      - only muliDimAdection scheme work with seaice/thsice
1425      - mapping of thsice-variables to seaice-variables, back and forth
1426      - does not break the verification experiments, but does not give the
1427        desired results either
1428    o pkg/seaice
1429      - make (default) second order advection a bit less confusing?
1430    
1431    checkpoint58f_post
1432    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1433      to pkg/seaice):
1434      - new routines thsice_map_exf and thsice_get_exf provide the interface
1435      - add an additional formal parameter to thsice_solve4temp
1436    o pkg/exf:
1437      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1438      - correct Stefan-Boltzmann constant
1439      - new parameter for longwave surface emittance
1440      - separate some stuff from exf_bulkformulae into new routines  
1441        exf_radiation, exf_wind
1442      - add new parameters and constants: longwave emissivity for ocean, ice
1443        and snow, evaporation parameters over ice
1444      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1445        either wind from stress or stress from wind
1446    o pkg/thSIce:
1447    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1448    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1449       and THSICE_CALC_THICKN
1450    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1451    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1452      to make debugging easier.
1453    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1454    o pkg/bulk_force:
1455      - clean-up comments and parameters ;
1456      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1457    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1458      generate new output for test-experiment: aim.5l_cs.thSI
1459    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1460      testreport accordingly
1461    
1462    checkpoint58e_post
1463    o SEAICE_CGRID adjoint done
1464    o R_STAR adjoint implemented.
1465      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1466      * need to sort out init. of h0facc, etc.
1467    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1468      to be able to use it in pure forward.
1469    
1470    checkpoint58d_post
1471    o upgrade simple test-experiment to tutorial example:
1472     step.1: duplicate the experiment and (step.2) will remove the old copy.
1473      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1474      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1475      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1476      tutorial_global_oce_biogeo    <- copy of dic_example
1477      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1478      tutorial_plume_on_slope       <- copy of plume_on_slope
1479      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1480      tutorial_global_oce_optim     <- empty for now (David ?)
1481      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1482     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1483    o correct a sign problem in cost_scat.F
1484    o obcs and ptracers: fix boundary conditions for advections schemes
1485      with larger stencil
1486    o thsice adjoint: start
1487    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1488      completeness
1489    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1490      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1491    o ptracers adjoint:
1492      * avoid extensive recomputatations
1493      * fix missing re-init. of gptr (missed by TAF)
1494    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1495      me to turn off the excessive output to STDOUT that this package produces
1496    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1497      and add those terms in Vector-Invariant formulation.
1498    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1499      if the control period (xx_hfluxperiod etc) is 0
1500    o in profiles pkg, clean routines and fix details
1501    o in ecco pkg, reading ssh data:
1502      fix problem in case the model does not start at iter0=0
1503    o fix mnc-pickup/restart for ptracers
1504    o new package prifiles:
1505      code to compute profile-based cost by Gael Forget
1506      (modifs in ecco, ctrl, autodiff)
1507    o Benign bug fix in initialization (spotted by M. Mazloff) of
1508      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1509    
1510    checkpoint58c_post
1511    o adjoint: finish NLFS adjoint and provide reference output in
1512      verification/global_ocean.90x40x15/results_ad_nlfs
1513    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1514      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1515      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1516      with SEAICE_CGRID defined.
1517    o move calendarDumps from "data" to "data.cal" and clean-up the code
1518      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1519    o add useEXF & useCAL flags (for now, set in hard-coded way)
1520    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1521      (were missing in NH mode, and wrong in quasihydrostatic mode).
1522      waiting for Chris updated version of calc_gw to add those CALLs.
1523    o fix bug in quasihydrostatic S/R ;
1524      add a test for this option: global_ocean.90x40x15.qshyd
1525    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1526      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1527    o add on/off flag useOffLine for package OFFLINE
1528    o seaice:
1529      - modify advection so that it works also on the C-grid
1530      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1531        problem in multi-tile runs with C-grid
1532      - add flags for clipping ice velocities and/or masking solver forcing
1533      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1534        C-grid solver
1535      - added a few comments to seaice_diffusion.F
1536      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1537        are now exclusive)
1538      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1539        required re-ordering the code a little:
1540       + make DAIRN global variable (defined in SEAICE)
1541       + move computation of the viscosities eta and zeta into a new separate
1542         routine (because I need to recompute them in seaice_ocean_stress.F)
1543    
1544    checkpoint58b_post
1545    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1546      update output.txt of exp. aim.5l_cs.thSI
1547    o various mnc cleanups and improvements:
1548      + shrink lookup tables by factor of ~4
1549      + better error reporting when running out of lookup space
1550      + able to handle longer path/file names (up to 500 chars)
1551    o adjoint:
1552      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1553      - TBD: "hidden" mom_vecinv recomp. in dynamics
1554    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1555     (allow to differentiate between forcing components using new integer flags:
1556      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1557     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1558    o ecco
1559      - enable trend removal from SSH anomaly obs.
1560    o adjoint
1561      - a fix for PmEpR when #undef EXACT_CONSERV
1562      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1563      - try to fix "hidden" recomp. in forward_step for NLFS
1564        (NLFS seems broken sometimes after I checked it in)
1565    o seaice:
1566     - add c-grid version of the dynamic solver:
1567       + three new routines that are the c-grid substitute lsr, dynsolver
1568         and ostres
1569       + put a few fields that were local to dynsolver into global common
1570         blocks, so that I can move the computation of stresses etc into
1571         seaice_lsr (saves coding but may break the adjoint).
1572     - replace more hardwired parameters by runtime parameters
1573     - add ice masks that mask the rhs of the implicit solvers where there
1574       is no ice (commented out in seaice_dynsolver, because i am not sure
1575       if this works properly), eventually this should replace the clipping
1576       of ice velocities in seaice_dynsolver to +/-40cm/s.
1577    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1578      include it only where its needed
1579    o move balancing of fluxes before the call of external_forcing_surf
1580    o seaice:
1581      - correct units of turning angles (now they are really in degrees)
1582      - move computation of GWATX/Y out of main routine into dynsolver
1583      - initialize GWATX/Y in seaice_init
1584    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1585      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1586    o seaice: add runtime flags for turning angles (default to zero)
1587    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1588      and trend from exf forcing and ctrl control adjustments
1589    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1590      (since checkpoint57x_post)
1591    o change the default rotation period to 86164.s = the Earth rotation
1592    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1593      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1594    o seaice advection: add code for choosing between the default (2nd order
1595      central differences) and multiDim advection schemes provided by
1596      pkg/generic_advdiff
1597    o seaice:
1598      - removed all references to SEAICE_GRID.h fields from
1599        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1600        (cubed-sphere configuration will change a little)
1601      - grid computations in seaice_init are obsolete now.
1602      - cleaned up code a little so that is easier to read (hopefully).
1603      - added new (better?) discretizations of default advection and diffusion
1604        (turn on with SEAICEuseFluxForm)
1605      - replace 1 in 3d global fields by kSurface in growth.F
1606      
1607    checkpoint58a_post
1608    o seaice:
1609      - bug fix in advect.F
1610    o shelfice:
1611      - separate shelfice load anomaly from pload (breaks with time
1612        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1613        Its default is 0., but it may be computed more cleverly from (unknown)
1614        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1615        done offline. A good approximation of the pressure load anomaly is
1616        necessary to avoid large initial adjustment processes underneath
1617        deep-reaching shelfice.
1618      - small fix in ISOMIP shelfice_thermodynamics
1619      - add more sophisticated thermodynamics of Hellmer (1989), this is
1620        now the default
1621      - give a few constants more intuitive names
1622    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1623      if bulk formulae are used in long integration (especially EmPmR). Turn
1624      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1625      if balancePrintMean, the imbalance that is substracted is printed to
1626      STDOUT.
1627    o fix bug (typo) in obcs_apply_eta.F
1628    o add a new package shelfice which enables us to model the circulation
1629      underneath shelf-ice with draughts of hundreds of meters.
1630     - works
1631     - to do: + include improved thermodynamics
1632              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1633                instead of new field kTopC
1634              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1635                instead of new field R_shelfIce and new code in ini_depth.F
1636                and ini_mask_etc.F?
1637              + adjust vertical mixing schemes?
1638    o seaice pkg:
1639     - add a cpp-flag to include a simple formula for a salinity dependent
1640       freezing point of sea water at the surface
1641     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1642       meridional stresses are now different (and hopefully correct)
1643    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1644       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1645       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1646    o pkg/diagnostics: add options and parameters for regional-statistics
1647       diagnostics ; define regions by reading a region-mask from a file
1648       (might add other options later)
1649    o pkg/bulk_force:
1650     - add option and parameters to use AIM surface-flux formulae.
1651     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1652       others forcing fields (defined in PARM05, parameter file "data") are loaded
1653       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1654     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1655     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1656     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1657       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1658     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1659    
1660    checkpoint58
1661    o add "--embed-source" option to genmake2 which, when the supporting
1662      tools can be compiled (as determined by genmake2) will turn on the
1663      embed_files package which then embeds the entire MITgcm source code
1664      (*.[fFhc] + Makefile) used for the build within the executable
1665      - requested by CNH but off by default
1666      - adds a paltry <9MB to the mitgcmuv executable in most cases
1667      - only writes the output when useEMBEDSRC in eedata is true
1668    o clean up 3-dim. relaxation codes:
1669      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1670      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1671      * Thanks to Tom Haine for testing!
1672    
1673    checkpoint57z_post
1674    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1675      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1676    o fix the pickup behavior for obcs in combination with ptracers
1677    o fix a bug in ptracers_external_fields_load
1678    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1679      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1680    o transfered surface NH pressure to eta field (if exactConserv).
1681    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1682         and update lab_sea output.txt file.
1683    o completing 3-dim. relaxation code: additional term
1684         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1685      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1686      * At compile time, in "EXF_OPTIONS.h" set
1687          #define  ALLOW_CLIMTEMP_RELAXATION
1688          #define  ALLOW_CLIMSALT_RELAXATION
1689      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1690          tauThetaClimRelax3Dim = 15552000.0,
1691          tauSaltClimRelax3Dim  = 15552000.0,
1692      * 3 cases:
1693          1) Use a constant-in-time 3-dim. field
1694          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1695          3) Real-time relax. to time-evolving prescribed field
1696    o Adding Laplacian-type smoothness constraint on
1697      initial and boundary (forcing) controls (ic, bc)
1698      * enable at compile-time via
1699        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1700      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1701      * Absolute scale somewhat unclear so far
1702      * no area weighting was included since no other cost term does so far
1703    
1704    checkpoint57y_post
1705    First step for a NLFS adjoint
1706    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1707    o new init. routines for calc_r_star, calc_surf_dr
1708    o still need to deal with ini_masks_etc
1709    o testreport seemed happy
1710    checkpoint57y_pre
1711    
1712    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1713    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1714    o add new offset feature to offline pkg (plus minor cleanup)
1715    o cfc fixes for final year of integration
1716    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1717      be in GCHEM_OPTIONS).
1718    
1719    checkpoint57x_post
1720    o fix testreport Pb in multiple test experiment.
1721    o cleanup our namelist syntax in verification:
1722      - make it more F95 standards compliant (some work still needed)
1723      - allows the vast majority of our tests to work with gfortran
1724    o Non-Hydrostatic:
1725     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1726     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1727    o Allow to apply AB on T,S rather than on AB(gT,gS):
1728     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1729     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1730       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1731     - need a "clever" read_pickup to restart from the other AB formulation
1732    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1733    o remove some unused variables (reduces number of compiler warnings)
1734    o adjoint
1735      * Disable useVariableViscosity for adjoint for time being
1736        (there are a number of extensive recomputations)
1737      * Initialize certain variables needed for adjoint
1738    
1739    checkpoint57w_post
1740    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1741                 fix the singleCpuIO RS version of MDSWRITEFIELD
1742       and add a WARNING if using globalFiles=T with multi-processors.
1743    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1744      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1745    o tracer advection scheme:
1746      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1747       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1748       was not very convenient).
1749      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1750       (further tests needed for the implicit DST & Flux-Limiter schemes).
1751    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1752      and sRef for convenience, handy, when you want to initialize
1753      ptracers in a large domain with a constant non-zero value. Also,
1754      untangle ptracers_init.F a little.
1755    
1756    checkpoint57v_post
1757    o change dome exp. to use variable viscosity in side-drag terms.
1758    o remove all the files from the cfc_offline test since they are now
1759      incorporated into tutorial_cfc_offline which has been producing
1760      identical results for a few days of testing
1761    o add new parameter: sideDragFactor to enable half-slip-side BC
1762      and change side-drag S/R to use viscosity from mom_calc_visc
1763      (can switch back by setting sideDragFactor=0.); affects results at
1764      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1765       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1766    o vorticity & strain are now computed without masking, to account for
1767      no-slip-side BC in variable viscosity calculation ; mask is applied
1768      anyway later on, before computing advection/coriolis terms.
1769    o modify exp4 to test new obcs support for reading from external files
1770      and for passive tracers
1771    o fix behavior of ptracers_monitor when monitor output is written to a
1772      netcdf-file; still not independent of monitor.F (writes in the same
1773      file).
1774    o change default value of tRef (put a uniform, meaningful value for ocean
1775      & atmos) and initialize sRef (was missing, as Martin mentioned).
1776    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1777      to be proportional to enstrophy dissipation length.  Thus,
1778       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1779      This is now consistent with Smagorinsky and with the manual.
1780    
1781    checkpoint57u_post
1782    o OBCS and PTRACERS: add open boundary support for passive tracers
1783      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1784        OB-values from file; this is not different from the way theta and salinity
1785        are treated
1786      - however, Orlanski-radiation conditions are not supported, and the model
1787        will stop if you use pTracers and Orlanski at the same time.
1788      - beefed up the rountine obcs_external_fields_load: now only those open
1789        boundary values are overwritten with values from files for which there
1790        are really files, otherwise the OB-fields remain untouched. This makes
1791        it possible to use different OBs at different ends of the domain (as
1792        with EXF)
1793    o reduce number of exch calls in shap_filt (s2).
1794    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1795      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1796    
1797    checkpoint57t_post
1798    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1799    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1800      same truncation, independent of the face number: affects affects several
1801      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1802    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1803      note that biharmonic viscosity + no-slip was not tested in any experiment.
1804    o fix bug in non-linear free-surf side-drag ; generate new output for
1805      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1806    o make mnc honor the writeBinaryPrec flag for most kinds of output
1807    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1808    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1809      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1810    o add brackets in multi-terms sum to get same truncation, independent of
1811      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1812      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1813    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1814      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1815      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1816      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1817      Suggested values of viscosity parameters found in mom_calc_visc.
1818      Many new viscosity diagnostics available.
1819    
1820    checkpoint57s_post
1821    o Add clearing-house for viscosity calculations, mom_calc_visc and
1822      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1823      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1824      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1825      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1826      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1827      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1828      ViscAhStrain and viscAhTension are now retired.
1829    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1830    o In response to JMC's bug report, genmake2 now ignores any soft-links
1831      that it finds in the *current* directory when searching for files.
1832      Soft-links found in any other source directories will still work as
1833      they did before.
1834    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1835      a C routine to unlimit the stack size
1836    o mnc-ify pkg/aim snapshot vars
1837    o mnc-ify pkg/land as requested by Daniel
1838    o various changes to mnc including:
1839      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1840      - output can now be grouped so that all files within a group
1841          change the ITER portion of their names in lock-step together
1842      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1843          and works with both EXCH1 and EXCH2 (but needs more testing)
1844      - writing works for all verification test cases w/ g77 on Linux
1845    
1846    checkpoint57r_post
1847    o make MNC variable initialization happen earlier
1848    o add diagnostics for (almost) each term of the momentum Eq.
1849    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1850    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1851    o remove MINIMAL_TAVE_OUTPUT option ;
1852      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1853    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1854      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1855    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1856    o add time-dependent SST, SSS control
1857    o cost terms in ecco/ modularized (new cost_generic.F)
1858    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1859    o new infrastructure for seaice model vs. obs misfits in seaice/
1860      * driver from the_main_loop.F is seaice_cost_driver.F
1861      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1862      * gradient check in Exp. 6a of natl_box_adjoint/
1863    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1864      (see README file)
1865    
1866    checkpoint57q_post
1867    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1868    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1869      - bug was reported by Jean-Michel and Ian Fenty
1870    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1871      update exp. cpl_aim+ocn output.
1872    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1873      Needed for high-res. runs with large global files
1874      to be able to limit tapelev size
1875    o Changed some tests for adjoint:
1876      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1877      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1878      * global_ocean.90x40x15/ back to default 3-level checkpointing
1879    o Modifications to enable scripted COMMON to MODULE conversion
1880      * verification/OpenAD/code/ has necessary scripts and description;
1881      * converts, compiles and runs successfully;
1882    
1883    checkpoint57p_post
1884    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1885    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1886      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1887    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1888    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1889      (was already the case for dissipation with mom_vecinv,
1890       and also the case for grad.PhiHyd when staggered-timeStep)
1891      This will allow to put dissipation out-off the AB time-stepping.
1892     Unfortunately, affects truncation error. Update output of exp. that "fails"
1893      (cg2d matching number) and leave the others for later: front_relax(10),
1894      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1895      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1896    
1897    checkpoint57o_post
1898    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1899      (2) its ready to be documented during the 20050801 DocFest
1900    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1901      for ideal_2D_oce and lab_sea on linux_ia32_g77
1902    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1903      in global1x1_tot/code_seaice_adj to access indices 32, 33
1904      (worth another tag)
1905    
1906    checkpoint57n_post
1907    o adding precip control xx_precip 32
1908    o adding swflux control xx_swflux 33
1909    o Replacing 10 forcing penalty cost routines by 1 generic.
1910    o Implementing partitioning in time-mean and variable adjustment
1911      for atmos. state.
1912    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1913    o in natl_box_adjoint:
1914      * updated exp 1 to 10
1915        (but does not have time-mean vs. variable split results yet)
1916    o updated global1x1/*_seaice_adj/
1917      to incorporate latest changes
1918    o enable useSingleCpuIO for mdsio vector routines
1919      (applies in particular to tapelev I/O)
1920    o removed inefficient K-loop in all active_file*control*.F
1921    
1922    checkpoint57m_post
1923    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1924      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1925    o pkg/exch2: filling of face-corner halo regions is optional
1926      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1927    
1928    checkpoint57l_post
1929     tag before updating tutorials (pre-release-2)
1930    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1931       for output and interpolation of input fields onto model grid)
1932    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1933       Affects results of exp. rotating_tank ; update output.txt.
1934    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1935          and taking the square quantity and/or using a fraction-weight field.
1936    o fix aim_diagnostics_init.F mate numbers.
1937    o add mnc output capability to diagnostics/diagstat and update
1938      our cvsignore files for the ACSII output generated
1939    
1940    checkpoint57k_post
1941    o lab_sea now uses diagnostics package and provides a suite of
1942      new EXF diagnostics output.
1943    
1944    checkpoint57j_post
1945    o exf
1946      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1947        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1948        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1949      * extended diagnostics output
1950        - now includes all EXF variables
1951        - hs, hl moved to common block
1952        - separate S/R for diagnostics, called after ctrl vector is added
1953        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1954        - EXFqnet contains true Qnet (i.e. includes qsw)
1955      * updated verif. lab_sea, global_with_exf
1956      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1957        to ensure that diagnostics sees a true EXFqnet
1958    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1959    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1960      several times with different frequencies.
1961    o mnc-ify the thsice package as requested by Daniel Enderton
1962      - the monitor--MNC output needs work
1963      - many attributes need to be added (most are currently blank)
1964    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1965      - many attributes need to be added (most are currently blank)
1966    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1967    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1968    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1969      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1970         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1971    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1972     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1973    
1974    checkpoint57i_post
1975    o Diagnostics package was changed: diagnostic allocation is now deactivated
1976      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1977    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1978      add 1rst Order upwind vertical Shear.
1979    o add a quick fix for A/B checkpointing in OFFLINE mode
1980    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1981      end-run around the C/Fortran linking horror in eesup/src/timers.F
1982    o added pkg/runclock: allows user to terminate run based on wall clock
1983    o added non-hydrostatic scaling parameter: nh_am2
1984    o pkg/my82: futile attempt to make results compiler-independent by adding
1985      some "_d 0", etc. no effect.
1986    o for mnc output, fill the 'T' coordinate var with myTime and create a
1987      separate 'iter' variable for iteration count
1988    o pkg/diagnostics:
1989      add new capability: output of Global/Regional & per-level statistics ;
1990      tested against monitor output (including land & thSIce) on various exp.
1991    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1992    
1993    checkpoint57h_done
1994      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1995      data.diagnostics, data.gchem, data.ptracers) is done.
1996    
1997    o pkg/diagnostics: prepare for Global/Regional statistics.
1998      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1999    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2000      and rename it: DIFFERENT_MULTIPLE
2001    
2002    checkpoint57h_post
2003    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2004    o pkg/diagnostics: change output frequency, now in seconds (instead
2005      of Nb of iterations). This requires to change data.diagnostics.
2006    checkpoint57h_pre
2007    
2008    o in mnc, let the user create the output dir if both mnc_outdir_date
2009      and mnc_outdir_num are false
2010    o add fflags() to pkg/diagnostics which allows one to specify, on a
2011      per-file basis, the file precision [default behavior is unchanged]
2012    o added diagnostics to pkg/kpp, including computation of mixed layer
2013      depth based on a temperature/density criterion
2014    o updated verification/natl_box to test the new pkg/kpp diagnostics
2015    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2016    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2017    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2018      not mnc -- this mistake was found by JMC and is now corrected
2019    
2020    checkpoint57g_post
2021    o add Adams-Bashforth 3rd Order time stepping:
2022      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2023      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2024    checkpoint57g_pre
2025    
2026    o make lambda[Theta,Salt]ClimRelax spatially varying
2027      (default remains spatially uniform constant based on tau)
2028    o added new control variables
2029      * init. uVel, vVel, etanN
2030      * lambda[Theta,Salt]ClimRelax
2031    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2032      (suggested by G. Forget)
2033    
2034    checkpoint57f_post
2035    o add parameter "baseTime" = model base time = time at iteration zero
2036      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2037      account for baseTime shift
2038    o move Coriolis arrays from PARAMS.h to GRID.h
2039    checkpoint57f_pre
2040    
2041    o mnc-ifying the seaice package
2042    o introduced an alternative length scale calculation for use in the limiting
2043      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2044    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2045    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2046      as well as grad(vort3).  Made it compatible with both approximate form
2047      for the cubed sphere and full form of these gradients.  Added flag
2048      useFullLeith to select between approximate and full form.  
2049    o add "d0" in getcon.F to reduce differences between compilers/platforms
2050      update output.txt of exp. fizhi-gridalt-hs
2051    o change port_rand funtion to allow to set the seed.
2052    o fix obscure MNC bug involving conversion between reals and integers
2053      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2054        new version is now more standards-compliant
2055    o adjoint-related modifications
2056      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2057      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2058      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2059    
2060    checkpoint57e_post
2061    o Adding eddy stress controls a la Ferreira et al.
2062    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2063    
2064    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2065      update output.txt of exp. fizhi-gridalt-hs
2066    o add more "Z" dimensions and associated coordinate vars to MNC
2067    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2068    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2069      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2070      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2071      months and years.  Requires pkg/cal.
2072    o diagnostics: add pickup functionality
2073      - off by default for backwards compatibility
2074      - current version only uses MDSIO -- MNC will be added
2075    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2076    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2077    
2078    checkpoint57d_post
2079    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2080    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2081      output from the diagnostics package
2082    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2083    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2084      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2085    o add coordinate variables to the MNC output from the diagnostics package
2086    o change MNC-flags default value: true when useMNC=TRUE
2087    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2088      the ability (off by default) to read the grid information using MNC
2089    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2090    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2091    o do snap-shot diagnostics at the middle of the time-interval (instead of
2092      at the end).
2093    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2094      new test for AIM with thSIce + slab-ocean
2095    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2096    o move state variable diagnostics to the beginning of the time step ;
2097      (note: still needs some work specially for snap-shot diagnostics)
2098      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2099    
2100    checkpoint57c_post
2101    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2102    o generate new output.txt files on faulks with g77 & the new -ieee option
2103    checkpoint57c_pre
2104    
2105    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2106      update output.txt of exp. global_ocean.90x40x15
2107    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2108      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2109    o add saltFlux(+File) forcing capability with periodicExternalForcing
2110    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2111    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2112    o improvements for the MNC output from DIAGNOSTICS:
2113      - correct handling of the unlimitied dimension
2114      - all dims now have associated coordinate variables
2115      - variables located at U, V, and Corner ("Z") points are now written
2116        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2117        *all* data points are output
2118    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2119    o added pkg/seaice/seaice_monitor.F
2120    o mdsio_readfield.F can now read files visible only to master MPI process.
2121    o pkg/seaice: some test code for ice-modified ocean stress
2122    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2123      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2124      spurious negative numbers for precipitation and humidity.  Will cause
2125      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2126    o pkg/ctrl/
2127      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2128        May be enabled via doPackDiag
2129      *  introduce z-scaling of
2130         + gradient (doZscalePack) and
2131         + control (doZscaleUnpack)
2132    o pkg/mdsio/
2133      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2134      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2135    
2136    checkpoint57b_post
2137    o simplify options in diagnostics_fill arguments (remove weird combinations)
2138    o fix MNC coordinate variables so that they now contain per-face index
2139      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2140      general, EXCH2 grids are only aligned to a "local" coordinate system
2141    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2142    o Implement instantaneous output within pkg diagnostics:
2143      setting a negative frequency in data.diagnostics produces
2144     "snap-shot" output (as opposed to time-average if freq > 0)
2145    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2146      NOTE: change ptracer diagnostics name: use 2 characters to work with
2147            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2148    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2149      becomes the coordinate variable for the 'T' dimension
2150    o add CF-style coordinate variables to MNC
2151      - just a first cut:  numbers are meaningless on the cubesphere and
2152        missing along the T axis but otherwise it works!
2153    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2154    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2155    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2156      this is based directly on what the model compute, so that the content of
2157      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2158    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2159    o clean up build options files for SunOS, in particular
2160      - remove -traditional from xmakedepend
2161      - change -xarch=v9 to -xarch=native for f77
2162      - restore use of make (not gmake)
2163      - add CC=gcc if using g77
2164    o changes per discussion of AM, JMC, & EH3 today:
2165      - move redundant "grid" variables out of "state" -- in preparation of
2166        creating proper CF-style coordinate variables and in recognition
2167        that any/all grid variables can be easily copied (eg. w/NCO) from
2168        the grid files into any of the other NetCDF files
2169      - *always* output grid variables with MDSIO (this will eventually be
2170        changed)
2171      - output MNC grid file if useMNC is true
2172    o every instance of _END_MASTER() has been found and replaced with
2173      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2174      preprocessors
2175    o re-arrange diagnostics pkg initialisation:
2176     - allow each package to extend the available diagnostics list
2177     - add some checking and fix small problems (multi-threaded, ...)
2178     - new S/R diagnostics_fill (replace fill_diagnostics):
2179       look through the short list of active diag. (instead of the long list)
2180       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2181    
2182    checkpoint57a_post
2183    o this set of changes restores TAMC compatibility
2184      tested for global_ocean.90x40x15 adjoint on trough
2185      (what a pain)
2186    
2187    checkpoint57a_pre
2188    o some modifs in tools/build_options for sunos
2189    o call ctrl_pack for ctrl at end for optimcycle=0
2190    
2191    checkpoint57
2192    o add horizontal bi-harmonic viscosity for vertical velocity
2193      - new parameter viscA4W (defaults to viscA4)
2194      - affects only non-hydrostatic code
2195      - to be done: no-slip lateral boundary conditions
2196    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2197    o implement Implicit Vertical advection for pTracers
2198    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2199      (implemented also for implicit vertical diffusion & advection)
2200    o OBCS: extend application of tracer open boundary conditions
2201      to a strip beyond the boundary of width Olx/Oly
2202    o add call monitor to TAF set of required calls (flow directives)
2203      and include in natl_box_adjoint
2204    o untangle a few ifdefs related to cost, ctrl, autodiff
2205      untangel a few ALLOW_ECCO_OPTIMIZATION
2206    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2207      (theta2, salt2 in ecco_cost_weights)
2208    
2209    checkpoint56c_post
2210    o OBCS as control variables
2211      - update ctrl_ad_diff.list, obcs_ad_diff.list
2212      - remove balance of obcs controls from default
2213      - fix index bug nobcs in ctrl_init
2214      - fix dummy fields filen in ctrl_pack
2215      - add dummy weights for obcs
2216    o lsopt: comment out fort.94 output
2217    o optim:
2218      - remove unnecessary header files
2219      - adjusted namelists
2220      - add xerbla.F to Makefile
2221    o exf:
2222      - multiple modifications of exf_check_range
2223      - unit change in exf_init_runoff from [m/year] to [m/s]
2224    o mdsio:
2225      - i/o-vector change debugLevel from debLevA to debLevB
2226    
2227    checkpoint56b_post
2228    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2229      is called from DO_THE_MODEL_IO
2230      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2231      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2232      - clean up PTRACERS_WRITE_TIMEAVE a little
2233    o add another verification experiment that tests both the cfc-pkg and
2234      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2235      reactive tendencies treated inline with regular timestepping
2236    o testreport previously did a lousy job of comparing small numbers, so
2237      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2238      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2239      testreport.
2240    o ptracers_monitor: bug fix for MPI
2241    
2242    checkpoint56a_post
2243    o GCHEM: finish reorganizating the package
2244      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2245        (introduces another 3D-array for each passive tracer, but only if
2246        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2247        gchemTendency is not needed because the timestep is done separately)
2248      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2249      - GCHEM is now---more or less cleanly---separate from PTRACERS
2250      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2251        so clear to me how that should be done in a general way.
2252    o CFC: improve formatting of output in CFC_ATMOS
2253    o PTRACERS:
2254      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2255        that ALL experiments with ptracers enable can be checked. This makes
2256        GCHEM_MONITOR obsolete.
2257      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2258        monitorFreq
2259      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2260    o add PTRACERS (PTR0[1-5]) to testreport output
2261    o exf_check_range:
2262      * default changed to .TRUE.
2263      * will check values for niter0 if debLevA, every timestep if debLevB
2264      * STOP in exf_check_range if 'out of range'
2265      * range chosen generous to allow for potential extema
2266      TBD: a version with stricter range
2267           permitted range would be runtime parameters
2268    o GMredi:
2269      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2270      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2271      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2272    o GCHEM:
2273      - move call to GCHEM_FORCING_SEP, so that it is now called before
2274        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2275      - introduced a useGCHEM runtime flag and applied it everywhere.
2276      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2277        this flag is now only visible within GCHEM-pkg routines.
2278      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2279        be replaced by a 3D array that is computed before thermodynamics; for
2280        this, the tracer ID iTracer had to be included into the parameter list
2281        of ptracers_forcing
2282      - set up forward_step to call gchem_forcing, that will replace
2283        gchem_forcing_int in ptracers_forcing
2284      - cleaning up
2285    o small cleaning of exch2: remove files that are also in eesupp/src
2286    
2287    checkpoint56
2288    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2289    o mnc: cleanup "full" files--fixes out-of-memory problem
2290    o ECCO-GODAE
2291      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2292      * fully merged and updated from SIO code
2293        windstress sign change affects
2294        - exf_inscal_[u/v]stress
2295        - sign of xx_tau[u/v] adjustments
2296        - signs in cost_scat
2297      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2298      * natl_box_adjoint updated and compressed
2299      * 2-level checkpoint switch added
2300        (tested in EXP. 1 of natl_box_adjoint)
2301      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2302    o SVD
2303      * first complete, non-hacked version for SVD calculations
2304      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2305        performed via direct access files admtlm_vector.it????
2306        (via ctrl_[un]pack)
2307      * optimcycle is used for ARPACK iteration counter
2308        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2309      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2310        and add linear transforms where necessary
2311      * controls are initial/final SST, SSS (can be extended; need to check
2312        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2313    o mdsio: filename info to both stderr, stdout
2314    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2315      from sign change
2316    
2317    checkpoint55j_post
2318    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2319      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2320    o add consistent build directories and .cvsignore files to verification
2321    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2322    o make all subroutines 30 or less characters in length for certain older
2323      compilers to work (a thorough search only turns up two routines in
2324      pkg/ptracers)
2325    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2326      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2327    
2328    checkpoint55i_post
2329    o change arrays for total vertical diffusivity (2.D if explicit,
2330      3.D if implicit) ; each ptracer uses its own background value.
2331    o added mnc/NetCDF output capability to ocn_compon_interf
2332      - added bits to verification/cpl_aim+ocn so that it can run on
2333        ITRDA and other clusters without the mpirun "-wd" option
2334    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2335      configuration
2336    o give MNC the ability to create additional files rather than
2337      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2338      - the default is just less than 2GB which is a practical limit
2339        on many systems
2340    o Compute the non-local term using either KPP vertical diffusivity (=default)
2341       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2342    
2343    checkpoint55h_post
2344    o add verification test "vermix"
2345    o remove all the *_ioinc flags and replace with the single global
2346      outputTypesInclusive flag
2347    o allow to set a vertical profile of vertical diffusivity for T & S
2348    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2349    o useMNC moved from data.mnc to data.pkg
2350    
2351    checkpoint55g_post
2352    o Renaming carbon AD experiments to comply with testreport conventions
2353    o Updating adjoint of Held-Suarez hs94.1x64x5
2354    o Fixing directives for non-ECCO forward_step, after ECCO directives
2355      have been fixed to avoid recomp. of do_oceanic_phys
2356      Works well for global_ocean.90x40x15,
2357      but recomp. issue remains for carbon
2358    o Updating adjoint output for natl_box_adjoint after
2359      pkg/ecco has been modified (see taga c55d_post)
2360    
2361    checkpoint55f_post
2362    o rename to timeave_init_fixed
2363    
2364    checkpoint55e_post
2365    o some delicate re-shuffle of store directives to avoid one
2366      extra call of do_oceanic_physics
2367      affects ecco_the_main_loop.F, do_oceanic_physics.F
2368      checkpoint_lev1_directives.h
2369    o NB: this may break global_ocean adjoint temporarily,
2370      but it is clear how to fix it. Will do later, need this now.
2371    
2372    checkpoint55d_post
2373    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2374    o ecco_cost_weights is modified to 1x1 runs
2375    o modifs to allow observations to be read in as
2376      single file or yearly files
2377    o enable to read exf forcing fields as either
2378      single file or yearly files (flag useExfYearlyFields)
2379    checkpoint55d_pre
2380    
2381    o switch between 2-level and 3-level checkpointing
2382    o add ability of MNC to write local and "partial" (eg. 2D slices where
2383      the full 3D field is never actually stored) arrays to NetCDF files
2384      with the correct (that is, the complete multi-dimensional) set of
2385      array indicies
2386      - used in mom_vecinv() to write the diagFreq output
2387      - tested (demonstrated) in verification/aim.5l_cs
2388    o further mnc-ification
2389      - add verification/lab_sea to the list with mnc setups
2390      - fix undefined mnc v-names in cd_code
2391      - add kpp to mnc output (both snapshot and timeave)
2392    o non-hydrostatic code
2393      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2394        in calc_gw.F
2395      - defaults to viscAh
2396      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2397        friction or Leith) in non-hydrostatic mode, as long as there is
2398        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2399    o pkg/cost
2400      extend simple cost functions to treat time mean quantities
2401      (T,U,V) via cost_accumulate_state from cost_tile
2402    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2403        be 2 times larger than the minimum size the advection scheme requires.
2404        now get a perfect conservation of salt in advect_cs test-exp (updated)
2405    o GGL90 (Gaspar's TKE mixed layer)
2406      - add horizontal diffusion of TKE, requires exchanges in
2407        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2408        default. In OPA there is no horizontal diffusion of TKE but the
2409        mixing coefficients are computed from a horizontal average of TKE of
2410        6 points or so. I think that diffusion has a little more physical
2411        justification.
2412      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2413        was in vain)
2414      - mask tke-variable in ggl90_init
2415    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2416    o fix biharmonic diffusion on CS-grid.
2417    o more obcs stuff
2418      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2419        for reading boundary values. This routine is called from
2420        obcs_prescribe_read
2421      - updated obcs_check
2422      - changed sponge layer relaxation parameter units for days to seconds
2423      - turned off sponge layer by default
2424      - changed argument list of OBCS_CALC to myTime+deltaTclock
2425      - fixed about 35 bugs in obcs_external_fields_load
2426    
2427    checkpoint55c_post
2428    o obcs stuff
2429      - new runtime flags useOBCSprescribe, useOBCSbalance
2430      - re-arranged obcs_calc
2431      - moved exf_getobcs to obcs_prescibe_read
2432        obcs_prescibe_read is called after ORLANSKI stuff
2433        and independent of it (executable can contain all).
2434      - updated obcs_check
2435      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2436        These may be necessary only if tangential velocities are
2437        prescribed at OB, not sure, needs testing.
2438    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2439      which simplifies the calls and passes the ifc check-bounds test
2440    
2441    checkpoint55b_post
2442    o add a 2D scalar, Z location, exchange_2 routine.
2443    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2444      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2445      affects advect_cs results (for the wrong reason): update output.txt
2446    o use a more standard discretization for biharmonic viscosity ;
2447     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2448      affects results of dome set-up: update output.txt
2449    o fix gad_advection.F (CubedSphere part), back to version 1.23
2450    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2451    
2452    checkpoint55a_post
2453    o merged code to
2454      * prescribe/read time-dependent open boundaries
2455        (works in conjunction with exf, cal)
2456      * sponge layer code for open boundaries
2457      * each boundary N/S/E/W now has its own CPP option
2458        (healthy for the adjoint)
2459    
2460    checkpoint55
2461    o up-to-date adjoint of previous breaks
2462      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2463      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2464      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2465      - carbon: * remove tr1-related adjoint verification
2466                * add ptracer as control variable
2467    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2468      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2469    
2470    checkpoint54f_post
2471    o in verification/carbin/ remove experiment related to
2472      ALLOW_PASSIVE_TRACER (array tr1 etc)
2473      code_ad/ input_ad/ results_ad
2474    
2475    o add two new packages
2476      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2477        + subject to optimization (memory)
2478      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2479        + subject to reordering (many GOTOs in the original code)
2480        + so far opps is called for every (i,j) point, and then operates in
2481          the vertical; one may want to reorder the scheme in order operate in
2482          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2483          fields)
2484    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2485      - all verification tests compile and run with linux_ia32_g77
2486      - defaults are compatible with current input files--nothing
2487        should change if you were not previously using MNC
2488      - MNC output has been added in numerous places (eg. timeave)
2489        but there are still a few writes not yet do-able with MNC
2490        (this is in progress)
2491      - flags now allow for either/or/both use of MDSIO and MNC and
2492        documentation will soon follow
2493      - numerous small formatting cleanups for ProTeX
2494    o add version info (via BUILD_INFO.h) to MNC and stdout
2495    
2496    checkpoint54e_post
2497    o add two new packages
2498      - pp81 (Packanowski and Philander, 1981), Richardson number and
2499        stratification dependent mixing
2500      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2501      - these scheme operate in a similar manner as KPP (without ghat, of
2502        course), however there is only one diffusivity that is used for both
2503        temperature and salinity (and passive tracers)
2504    o add offline package
2505    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2506      provided by Stephanie Dutkiewicz
2507    o genmake2: add ability to search for C compilers and cleanup test output
2508      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2509    
2510    checkpoint54d_post
2511    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2512    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2513      leading to additional shift by 5 days each year of integration
2514       (i.e. leading to considerable offset over the years)
2515    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2516    o start with no AB and no initial filtering (staggerTimeStep):
2517      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2518    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2519      (external loading & cpl import/export stay in forward_step.F)
2520    o update coupling interface to work with new staggerTimeStep
2521    o change MDSIO ptracers_pickup.
2522    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2523    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2524    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2525    
2526    checkpoint54c_post
2527    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2528      this affects (truncation error) output.txt of test-exp:
2529       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2530    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2531    o change Qnet to always be the net heat flux, (+upward).
2532      affects (truncation error) output of natl_box exp.: updated
2533    o define the max number of passive tracers in PTRACERS_SIZE.h
2534    o start to test mnc routinely in exp0
2535    o add sea-ice loading (sIceLoad) as a new forcing field.
2536    
2537    checkpoint54b_post
2538    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2539       impressive on Altix and Opteron systems)
2540    o diagnostics can now write NetCDF files through the mnc package
2541    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2542    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2543    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2544      affects (truncation error) output of lab_sea & natl_box exp.: updated
2545    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2546    
2547    checkpoint54a_post
2548    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2549    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2550    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2551    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2552      + internal_wave (shift in writing cg2d_ini_res)
2553    checkpoint54a_pre
2554    
2555    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2556      - modified verification/lab_sea and natl_box_adjoint accordingly
2557    
2558    checkpoint54
2559    checkpoint53g_post
2560    o prepare splitting of thermodynamics: store convect.counter in common block
2561    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2562      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2563    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2564    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2565    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2566    o restore adjointability
2567    
2568    checkpoint53f_post
2569    o modifications that affect AIM experiment results (update output.txt):
2570      - no advection of S at top interface Nr (pkg/generic_advdiff)
2571      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2572    o AIM pkg:
2573      - include stability function into surf.Flux derivative relative to Tsurf
2574      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2575    
2576    checkpoint53e_post
2577    o merged cylindrical coord configuration
2578    o added rotating_tank experiment
2579    checkpoint53e_pre
2580    
2581    checkpoint53d_post
2582    o faulks upgraded: re-generate output.txt that have changed:
2583       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2584    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2585    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2586    o added Sadourny discretization of Coriolis
2587      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2588      - re-enabled use of omega3 (useAbsVorticity)
2589    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2590      vector-invariant equations
2591      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2592    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2593      hopefully without new bugs
2594      - still to do: biharmonic friction for non-hydrostatic w
2595    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2596    o regenerated output for global_ocean_ebm (using -ieee)
2597    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2598      of mom_common/
2599      - simple re-arrangement of instructions within computing loop
2600    checkpoint53d_pre
2601    
2602    checkpoint53c_post
2603    o new version of coupler for AIM+thSIce and Ocean models
2604     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2605     - land: change Evaporation of snow
2606     - aim with thSIce: fix bug in snow-precip.
2607    o changes to calc_gw.F
2608     - bug fix for w^2 term near the bottom boundary
2609     - (hopefully) improve the lateral slip boundary condtions for use with
2610        partial/looped cells
2611      - because the bug fix changes two verification experiments anyway (exp5
2612        and plume on slope), change the lateral boundary condition from half slip
2613        to the value of no_slip_sides
2614    o ebm package wasnt quite up to the parallel task. Fixed that.
2615    o Adjoint of EBM package + verification
2616      * TLM OK
2617      * ADM not sufficient accuracy yet (needs further testing)
2618    
2619    checkpoint53b_post
2620    o Commiting new energy balance model to repository
2621      * package is pkg/ebm
2622      * verif. is verification/global_ocean_ebm
2623      * references are in ebm_driver.F
2624    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2625    C        Global thermohaline circulation. Part I:
2626    C        Sensitivity to atmospheric moisture transport.
2627    C        J. Climate 12(1), 71-82
2628    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2629    C        Global thermohaline circulation. Part II:
2630    C        Sensitivity with interactive transport.
2631    C        J. Climate 12(1), 83-91
2632    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2633    C        Destabilization of the thermohaline circulation
2634    C        by atmospheric eddy transports.
2635    C        J. Climate 7(12), 1870-1882
2636    o Will need long integration testing.
2637    checkpoint53b_pre
2638    
2639    o created pkg/mom_common in preparation for variable viscosity code
2640    o renamed and split ini_mnc_io
2641    o pkg/land: only liquid water can diffuse or run-off
2642    o AIM using land: soil wetness availability account for snow
2643    o added printMapIncludesZeros to EEPARMS namelist
2644    
2645    checkpoint53a_post
2646    o restore TAMC compatiility for exf_constants.h
2647      (no usage of _d in .h)
2648    o Additional storing in KPP in an attempt to fix
2649      TAMC problem with adjoint of KPP code.
2650      (no success...)
2651      Identical code works fine with TAF.
2652    o Fixed verification/natl_box_adjoint experiments.
2653      Initial conditions for Experiments 4 and 5 are now
2654      set to "SEAICE_initialHEFF=0", which is more reasonable,
2655      and hence gives results closer to that of Experiment 2.
2656      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2657    
2658    checkpoint53
2659    o stable checkpoint with up to date adjoint
2660      TLM tests only run for 1st grdchk at the moment. Its unclear if
2661      this is a code problem or a problem with resetting code for g_
2662      variables that is being autogenerated wrong.
2663      Otherwise:
2664       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2665       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2666         are both still in chaos following their security messes.
2667    
2668    checkpoint52n_post
2669    o various build (mostly genmake2) changes including:
2670      - ability to build/run more easily within Cygwin and MacOS X
2671      - more complicated Makefiles with a stronger dependence on Gnu Make
2672    o pkg/seaice modifications
2673      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2674        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2675        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2676      - changed proxy for geostrophic velocity and updated
2677        verification/lab_sea/results/* accordingly
2678      - removed ADI dynamic solver from pkg/seaice
2679      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2680        they caused a segmentation fault under certain circumstances
2681      - removed unused field WATR
2682    o bug fix in exf-package:
2683      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2684         now reflect that.
2685    o small fixes in the cal-package:
2686      - set reference date to first of January for the 'model'-calendar
2687      - failing of cal_CheckDate in cal_FullDate now actually results in a
2688        warning
2689    o small modifications in exf-package to increase flexibility:
2690      - change climtempfreeze from a constant to a runtime parameter that
2691        is specified in data.exf_clim (default = -1.9)
2692      - introduce runtime parameter windstressmax (default = 2.0) that is
2693        specified in data.exf
2694    o fix in pkg/thsice:
2695      - update Evap (Tsf changes) to be consistent with Latent heat flux
2696      - maintain snow precipitation unchanged (even if Tsf >=0).
2697     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2698    
2699    checkpoint52m_post
2700    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2701      this does not change any of the results, because myIter=0 in swfrac always
2702      lead to jwtype=2 (the default anyway), but the call makes little sense
2703      as a default
2704    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2705    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2706      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2707    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2708    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2709    o extending useSingleCpuIO option to work with new exch2 I/O format
2710      - old-style, missing-tile I/O is still accessible by defining CPP
2711        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2712    o monitor package can write to NetCDF files and/or STDOUT
2713    o fix re-definition bug in MNC_GRID_INIT_ALL()
2714    o doc/api_reference added
2715      - a framework for building an API Reference Manual using all
2716        the "protex" comments embedded in the code
2717      - see pkg/generic_advdiff, pkg/mnc for examples
2718    o MNC:
2719      - make myThid the last argument for all subroutines
2720      - new default for the grid files: NO halos
2721      - add useMNC and other run-time flags
2722      - separate per-file-group handling of the unlimited dimension
2723      - early initialization of MNC w/ flags read at the eeboot stage
2724        and lookup tables set in initialize_fixed
2725      - write all MNC output to a freshly-created directory
2726    o thermodynamics sea-ice (thsice) is now tested with testreport.
2727    o test exp. advect_cs: use the standard cs32 grid ; update output.
2728    o Added functionality to grdchk:
2729      pick global i,j,k position (or nearest wet) where to perform check.
2730    
2731    checkpoint52l_post
2732    o new land formulation:
2733      a) use ground enthalpy as prognostic variable to ensure exact
2734         energy conservation.
2735      b) account for water temperature and for latent heat of freezing
2736         in all processes (rain, run-off, ground storage)
2737      c) compute surface and ground temperature implicitly.
2738    o aim_v23 modification for new land model:
2739      a) Treat separately land / ocean / sea-ice surface fluxes
2740         to allow implicit computation of land & sea-ice surface temp.
2741      b) add snow precipitation.
2742    checkpoint52l_pre
2743    
2744    o fix problem (when 1 tile is empty) in min/max monitor.
2745    o fix bug in timeAve (u,vZetatave in common block)
2746    o no restoring terms under ice for pkg/seaice
2747    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2748    o bug fix for pkg/seaice pickups
2749    o change MNC call locations and add coordinate attributes
2750    o mask vorticity at the corner ; affects global_ocean.cs output
2751    o fix ini_curvilinear_grid ; test CS experiments with mpi
2752    o aim.5l_cs: modify sea-ice fraction input file ; update output
2753    o exf: Adding simple range check routine for exf fields after read
2754    
2755    checkpoint52k_post
2756    o removed top-level directory "diags"
2757      - we migrated these functions to pkg/timeave a long time ago
2758    o fixed bug introduced in pkg/monitor
2759    o accuracy ctrlprec = 32 insuffient for gradient checks using
2760      averaged fields (I/O via cost_averages)
2761      -> use ctrl.h in active_file*.F to control I/O precision.
2762    o paramter list of CALL ADTHE_MAIN_LOOP
2763    o added initial do_the_model_io to ecco
2764    o set all ...Freq to zero after cost_final
2765      taveFreq, dumpFreq, pChkptFreq
2766    o MAIN and ECCO differentiability restored
2767    
2768    checkpoint52j_post
2769    o fix nchklev in tamc.h for global_ocean...
2770    o Bringing flow and store directives up-to-date
2771    o Really weird thing!
2772      call do_the_model_io from the_main_loop with parameters
2773      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2774      TAF places a faulty re-call of initialise_varia
2775      after cost_final call which should not be there!
2776    checkpoint52j_pre
2777    
2778    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2779      error messages
2780    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2781    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2782      debug output
2783    o modfied mdsio_writefield.F to handle non-global files under exch2
2784    o update AIM Cubed-Sphere exp (aim.5l_cs):
2785      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2786    o update AIM Equatorial Channel exp:
2787      use standard aim_v23 pkg and change the SST fields to be more realistic.
2788    o globalFile now works with exch2
2789    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2790      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2791    o limit timeave output for hi-res integrations
2792    
2793    checkpoint52i_post
2794    o removed CPP_EEOPTIONS.h from verification/*/code
2795    o updated the tiling for global_ocean_pressure
2796    checkpoint52i_pre
2797    
2798    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2799      the old pkg/aim).
2800    
2801    checkpoint52h_pre
2802    o shortened offending lines in exch2_send_rx?.template
2803    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2804    o genmake2: add build & execute test for NetCDF code
2805    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2806      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2807    o added useSingleCPUIO flag to monitor.F and mon_out.F
2808    o added temporary hack for sea-ice dynamics on the cube:
2809      metric terms are ignored and it is assumed that
2810      there is no sea-ice on cube faces 1, 2, 4, and 5.
2811    
2812    checkpoint52f_post
2813    o added exch2 cube routines to pkg/exch2
2814    o modified hs94.cs-32x32x5 to use it
2815    o added new grid files to hs94.cs-32x32x5
2816    checkpoint52f_pre
2817    
2818    checkpoint52e_post
2819    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2820      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2821    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2822      to work with implicit vertical advection and AB ;
2823    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2824    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2825     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2826    checkpoint52e_pre
2827    
2828    o fix bug in impldiff when Nr=1 or Nr=2.
2829    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2830    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2831    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2832      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2833    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2834    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2835    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2836    
2837    checkpoint52d_post
2838    o re-tiled many expts to allow comparison in multi-processor mode
2839      - updated output accordingly
2840      - changed hs94.128x64x5 to use intial T from file rather than use the
2841        random number generator
2842    o add infrastructure in model routines for fizhi and gridalt packages
2843    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2844    o changes to permit hi-res, cubed-sphere, configuration
2845      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2846      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2847      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2848        of surface winds for the cube
2849      (A verification experiment, based on global_ocean.cs32x15, but with
2850       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2851       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2852       complete with example surface forcing files and matlab scripts to look
2853       at the output and compare it with that of global_ocean.cs32x15.)
2854    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2855       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2856       to conform to the common rule.
2857    o check-in the first version of the coupler + interfaces for multi-components
2858       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2859       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2860       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2861       - ocean and atmos. share the same horizontal grid (no interpolation).
2862       - exchanges between component and coupler is done in forward_step
2863    o new verification experiment, cpl_aim+ocn:
2864       coupled ocean - AIM atmosphere on cs32 grid.
2865    
2866    checkpoint52d_pre
2867    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2868    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2869    
2870    checkpoint52c_post
2871    o Fixing OPTIONS files for use of exf:
2872      - ALLOW_ECCO not needed
2873      - ECCO_CPPOPTIONS.h should not be included from
2874        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2875        as has been the case in the past
2876      - All cal/exf related options are currently set in
2877        single header file. Should remain so until we
2878        agree on a consistent new policy.
2879    o Removed all CPP options for cal package.
2880      cal has no more CPP options.
2881    o modified STOREs in GAD_ADVECTION
2882    o corrected key comp. for passkey
2883    
2884    checkpoint52b_post
2885    o new version: "thsice" of thermodynamic sea-ice pkg:
2886     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2887     - modify fluxes but do not change theta directly;
2888     - light cleaning of bulk_force pkg (still needed with thsice).
2889     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2890       + output_thsice.txt to test thsice & bulk_force pkgs.
2891    o put back grid & coriolis monitor output.
2892    checkpoint52b_pre
2893    
2894    o call "do_the_model_io" at the beginning (=> dump initial state)
2895    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2896    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2897      (need info on NUMBER_OF_PTRACERS)
2898    o missing PTRACERS headers in some routines
2899    o default tamc.h in pkg/autodiff supposed to crash
2900      to ensure proper customization
2901    
2902    checkpoint52a_post
2903    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2904      - moved surfaceTendencyTice from pkg/seaice to main code
2905      - subroutine FREEZE_SURFACE now limits only surface temperature
2906        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2907        => new output.txt for global_ocean.cs32x15 & global_with_exf
2908      - keep the old version of FREEZE for backward compatibility;
2909        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2910      - corresponding modifs for TAF directives
2911    o added surface flux output variables to TIMEAVE_STATVARS
2912    o time-averaged output for pkg/ptracers
2913    o fix problem with ECCO-related divided adjoint
2914      snapshot file was missing some ad-variables,
2915      but no warning issued by TAF
2916    
2917    checkpoint52a_pre
2918    o some bug fixes for #undef REAL4_IS_SLOW
2919    
2920    checkpoint52 = ecco_c52_e35
2921    o after testing adjoints of checkpoint51u_post
2922    
2923    checkpoint51u_post
2924    o this is the post-merge tag of the ecco-branch
2925      (needs another clean checkout and re-testing)
2926    o various natl_box_adjoint configs and results
2927      but no input fields
2928    o obcs adjoint not yet merged!
2929    o adding ECCO global 1x1 and 2x2 degree configs
2930    o updated/extended some store directives for seaice
2931    o pkg/ecco now containes ecco-specific part of cost function
2932    o top level routines the_main_loop, forward_step
2933      supersede those in model/src/
2934      previous input data.cost now in data.ecco
2935      (new namelist ecco_cost_nml)
2936    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2937    
2938    checkpoint51t_post
2939    o this is the pre-merge tag of the ecco-branch
2940    
2941    checkpoint51s_post
2942    o cleanup: removed various obsolete #define-s
2943    o pkg/grdchk
2944      - renamed 'ph-grd 3' to 'grad-res'
2945      - merged from ecco-branch
2946        (remaining bug fixes for obcs gradient checks)
2947      - additional high-precision output for testreport
2948        (grep for 'precision_grdchk_result')
2949    
2950    checkpoint51r_post
2951    o cleaned up or removed CPP_OPTIONS.h files
2952    o updated results for some of the tests to reflect the new
2953      optfiles (-ieee: -O0 instead of -O3)
2954    
2955    checkpoint51q_post
2956    o cd_code:
2957      - moved cd_scheme.F -> cd_code_scheme.F
2958      - separate read_checkpoint from cd_code_ini_vars.F
2959      - separated cd_code part from write_checkpoint
2960      - updated AD_SOURCE, generated .flow
2961      - added CD_CODE_VARS.h to the_main_loop
2962      - Moving cd_code specific store dir.s to pkg/cd_code
2963    o ctrl package totally restructured
2964      - pack/unpack now optional and decoupled from
2965        xx_/adxx_ I/O
2966      - ctrl_pack/unpack cleaned
2967        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2968      - confined inclusion of AD_CONFIG.h to where necessary.
2969    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2970    
2971    checkpoint51p_post
2972    o create initial cd_code package
2973      - WARNING: the initialization of fields within packages
2974        is broken because INI_FIELDS (where READ_CHECKPOINT is
2975        called) is called *before* PACKAGES_INIT_VARIABLES.
2976        This seems to be backwards since
2977        1) its important to initially zero the entire field including
2978           the "halo" region
2979        2) zeroing needs to be done *before* reading pickup info
2980           and the pickup call might or might not happen in any
2981           particular run
2982      - this needs an overhaul for R2
2983    o cleanup verification/*/code/GMREDI_OPTIONS.h
2984    o cleanup testreport
2985    
2986    checkpoint51o_post
2987    o bringing AD-related verif's up to date with genmake2
2988      - carbon/
2989      - global_ocean.90x40x15/
2990      - hs.94.1x64x5/
2991      - (front_relax/ )
2992    o (more) consistent directory structure for AD-related verif.'s
2993    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2994    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2995    o bug fix in find_alpha.F for MDJWF:
2996      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2997        change rho -> rho-rhoConst
2998      - replace call find_rho to find_rhonum
2999    o initialisation of rFlx extended to full array (required by TAF)
3000      and shifted to thermodynamics
3001    o removed PTRACERS.h in ptracers routine
3002    o added surfacetendencyPtr to S/R parameter list pracers_forcing
3003    o Correcting initialisations for fVerU, fVerV.
3004    o helping TAF to recognize dependency on kUp for
3005      fVerU, fVerV
3006    o Replacing delZ by delR in pkg/ctrl/
3007    checkpoint51o_pre
3008    
3009    o undid all of cp51 pending some cleanups and discussion
3010    o added the [#include "AD_CONFIG.h"] statement to all files that need
3011       it for adjoint/tl #defines
3012     o re-worked the build logic in genmake2 to support AD_CONFIG.h
3013     o removed tools/genmake since it no longer works
3014    
3015    checkpoint51n_post
3016    o modifications to make FREEZE flux visible to pkg/kpp
3017      - moved surfaceTendencyTice from pkg/seaice to main code
3018      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
3019      - subroutine FREEZE now limits only surface temperature
3020        (this means new output.txt for global_ocean.90x40x15,
3021         global_ocean.cs32x15, and global_with_exf)
3022    o added surface flux output variables to TIMEAVE_STATVARS
3023    
3024    checkpoint51n_pre
3025    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
3026    o added [#include "AD_CONFIG.h"] to all files that use the following
3027      defines:
3028      - ALLOW_ADJOINT_RUN
3029      - ALLOW_TANGENTLINEAR_RUN
3030      - ALLOW_ECCO_OPTIMIZATION
3031    
3032    checkpoint51m_post
3033    o incorporating changes to get TAMC/TAF working in genmake2
3034      - added new TAMC/TAF targets to the Makefile
3035      - various cleanups related to package handling
3036      - these changes should have no impact on the forward model
3037    
3038    checkpoint51l_post
3039    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
3040     - faster algorithm for cal_addtime.F
3041     - higher precision arithmetic, where needed
3042     - pkg/exf *startdate variables changed from calendar date to
3043       model integration time
3044    
3045    checkpoint51l_pre
3046    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
3047    o enable to apply restoring on S & T only in a latitude band.
3048    o update output (external_forcing_surf modif. change truncation errors)
3049       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
3050    
3051    checkpoint51k_post
3052    o change default to: useNHMTerms=.FALSE.
3053     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
3054       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
3055     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
3056        exp1, ideal_2D_oce
3057     - change data file of oceanic exp (leave the results unchanged for now)
3058       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
3059    o set gravitySign automatically according to the vertical coordinate used
3060      (and change sign: back to "logical" value: +1 when R increases downward)
3061    o added an include barrier to the default CPP_OPTIONS.h and
3062      removed the #include "PACKAGES_CONFIG.h" from it
3063    o fix a bug in mom_fluxform (from chk51j_post)
3064    
3065    checkpoint51j_post
3066    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
3067    o adjusted some flow directives (dynamics, thermodynamics)
3068    o added cubed-sphere case to test cost function
3069    o heckpoint_lev?_directives.h now include
3070      pkg-specific directives, whenever those are enabled.
3071    o Moving pkg-specific flow directives to corresponding pkg
3072      Moving pkg-specific differentiation list to corresponding pkg
3073      Moving pkg-specific checkpoint-lev storing to corresponding pkg
3074      ---> conventions are
3075           - pkg_ad.flow
3076           - pkg_ad_diff.list
3077           - pkg_ad_check_lev?_dir.h
3078    
3079    checkpoint51i_post
3080    o merge of the branch-genmake2
3081      - knowingly breaks the older genmake
3082      - automatic generation of all ALLOW_${PKG_NAME} defines
3083      - new testreport supersedes older testscript
3084    o large number of package inclusion and header cleanups
3085    checkpoint51i_pre
3086    
3087    o new output for adjoin of global ocean vector invariant
3088    o fix for checkpoint of thermodynamic seaice and bulk_force
3089    o Steph gchem various cleanups
3090    
3091    checkpoint 51h_pre
3092    o fixed some single quotes
3093    o modify gchem pkg to be more versatile
3094    o modifications to clean up dic pkg
3095    o add pkg/cfc
3096    
3097    checkpoint51g_post
3098    o provide links for ARPACK and ADM*TLM
3099    o start removing verification/vero/
3100    o update AD-related stuff
3101      (in particular some IF-statements in model/src/ routines)
3102    o adding to verification/global_ocean.90x40x15/ adjoint of
3103      vector invariant setup
3104    
3105    checkpoint51f_post
3106    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
3107    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
3108      of tracer Green's fucntions for ocean inversion project.
3109    
3110    checkpoint51f_pre
3111    o Added on-the-fly spatial interpolation capability
3112        "USE_EXF_INTERPOLATION" to pkg/exf.
3113      - This is a temporary Cartesian-grid hack until
3114        the super-duper ESMF coupler becomes available.
3115      - See verification/global_with_exf/README for usage example.
3116      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
3117        flags and modified pkg/seaice accordingly.
3118    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
3119        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
3120        non-local transport term.
3121    
3122    checkpoint51e_post
3123    o pkg/mom_vecinv:
3124      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
3125      - add time-ave diagnostic of vorticity advection.
3126    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
3127    o atmospheric geopotential: - include water vapor effect;
3128                                - use p^kappa in p* scaling.
3129    o land pkg: read initial state from files.
3130    o AIM : add stratospheric drag in the upper level
3131    
3132    checkpoint51d_post
3133    o change function ILNBLNK (=> last non-blank char.) to return zero
3134      (instead of the string length) when the string. char is empty
3135    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
3136    o modif's to restore TAMC compatibility
3137      - avoid "_d" constructs in PARAMETER declarations
3138      - avoid interrupting lines by comment lines
3139    o Use cluster local disks for purely local I/O
3140      vs. globally visible disks needed for ctrl stuff
3141      (merged from ecco-branch)
3142      - new active_file_loc... and mdsio_..._loc routines
3143      - affected packages: autodiff, ctrl, grdchk, mdsio
3144    
3145    checkpoint51c_post
3146    o introducing integer flag debugLevel
3147      - debLevZero: suppress all output
3148      - debLevA: standard
3149      - debLevB: equivalent to current debugMode=.TRUE.
3150    o introducing pathname variable mdsioLocalDir for mdsio
3151      that can be specified at runtime
3152      (relevant for cluster I/O to local disk)
3153    `
3154    >>>checkpoint51b_post
3155    adjoint of ptracers
3156    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
3157    o extended state in checkpoint_lev?, etc.
3158    o alternative ctrl/cost with tr1 or ptracer
3159    o new comlev1_bibj_ptracers
3160    o new ptracers.flow
3161    o made ptracers_forcing same as external_forcing_s
3162    o added verification for adjoint with ptracers
3163      - adm. grdchk fail so far
3164      - tlm. grdchk OK
3165      - checked tapelev/comlev recomputations: OK
3166    <<<checkpoint51b_pre
3167    
3168    checkpoint51a_post
3169    o added code for biogeochemistry package
3170      - new pkgs: dic, gchem
3171      - new subroutine in ptracers
3172    o modify code for biogeo packages
3173      - in model/src and pkg/ptracers
3174    
3175    checkpoint51
3176    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
3177      - autodiff, ctrl, exf, grdchk, seaice
3178      kept separate packages
3179      - cost, ecco, obcs
3180    o updating verification/internal_wave, verification/lab_sea
3181      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
3182    
3183    checkpoint50i_post
3184    o Preparing next differentiable checkpoint and sync
3185      of MAIN vs. ecco-branch
3186      - 1st step: this one is differentiable
3187      - 2nd step: next(! not this) checkpoint will have updated packages
3188                  from ecco-branch)
3189    
3190    checkpoint50h_post
3191    o new package "land": provide surface BC for AIM.
3192    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
3193    o AIM: use true log-P extrapolation for near surface temp (= as in
3194        F.Molteni paper) ; update aim.5l_cs output.
3195    o New variable in PARM03 for more flexible pickups
3196    o somewhat cleaned package initialisation sequence for
3197      ctrl/ cost/ ecco/ in packages_... routines
3198    
3199    checkpoint50g_post
3200    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
3201      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
3202      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
3203        made the default because of faster convergence than ADI
3204    
3205    checkpoint50f_post
3206    o exf totally restructured
3207      - replaced all exf_set_ routines by one generic exf_set_gen.F
3208        and made sure it's still differentiable
3209      - split exf_getffields.F into new exf_bulkformulae.F
3210      - exf_inscal_/exf_outscal_ suffixes consistent with field names
3211      - updated adjoint/makefile and relevant verif. accordingly
3212    
3213    checkpoint50f_pre
3214     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
3215          + change Evap over land. (update aim.5l_cs output)
3216     o added missing .cvsignores and made uniform across expts
3217     o changed configuration of tidal_basin_2d expt
3218     o added pkg/debug functions for tracing code in fatal crashes
3219     o tidied pkg/monitor to use MONITOR_OPTIONS.h
3220     o new fn in pkg/monitor to stop model if solution grows too big
3221     o removed lots of single quotes from comments
3222    
3223    checkpoint50e_post
3224    o make KPP work with PTRACERS
3225     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
3226       nearly a copy of kpp_transport_s
3227     - there is no analogue to SurfaceTendencyS, so I have to use
3228       gPtr(of the surface layer) instead
3229    o add a new platform SunFire+mpi (SunFire 15000) to genmake
3230    checkpoint50e_pre
3231    
3232    checkpoint50d_post
3233    o change kpp output from multiple-record state files to single-record state
3234      files analogous to write_state.F
3235    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
3236      analogous to the cg2d-related output.
3237    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
3238      so that writing to internal file fn (with length 512) fails.
3239    checkpoint50d_pre
3240    
3241    checkpoint50c_post
3242    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
3243    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
3244    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
3245    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
3246    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
3247    
3248    checkpoint50c_pre
3249    Merging from release1_p13:
3250    o bug fix for pkg/seaice dynamic solver
3251    o Added SEAICE_initialHEFF to pkg/seaice
3252    
3253    checkpoint50b_post
3254    o store u*,v* in gU,V instead of in guNm1,gvNm1
3255    o in order to put the momForcing out of the Adams-Bashforth:
3256      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
3257      to timestep.F
3258    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
3259    o re-generate output for highly sensitive test-exp:
3260       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
3261    
3262    checkpoint50b_pre
3263    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
3264    o corrected CPP option mismatch in exf_Bulk... functions for case
3265      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
3266    
3267    checkpoint50a_post
3268    o Bug fix for merging between c50 and KPP.
3269      ikey was passed from thermodynamics to kpp_calc via
3270      common block rather than being recomputed in kpp_calc,
3271      in contradiction with new key itdkey.
3272      New key ikppkey created, and tamc.h headers updated.
3273    
3274    checkpoint50
3275    - 2nd step of merge with ecco-branch:
3276      merge changes in ecco-branch back into main trunk
3277    - bug fix in find_alpha
3278    - more storing in gmredi_calc_tensor.F, kpp_routines.F
3279    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
3280    - merged some sliced AD support routines
3281    
3282    checkpoint49
3283    merged from ecco-branch:
3284    o exf:
3285      - Enable initialisation of forcing fields to constant
3286        (runtime) values.
3287      - in exf_getffields.F
3288        Reduce i-/j-loop to interior domain, discarding overlaps.
3289        That also fixes wrong TAF-key computations for key_1, key_2
3290        with bulf formulae.
3291      - exf_init.F modify #ifdef for exf_init_evap
3292      - exf_getffieldrec.F, ctrl_getrec.F
3293        The following INT-usages are not safe:
3294          fldsecs  = int(fldsecs/fldperiod)*fldperiod
3295          fldcount = int(fldsecs/fldperiod) + 1
3296        and were modified.
3297    o autodiff: checkpoint_lev...
3298      - updated storing for bulk formulae (some arrays were missing)
3299      - added state for seaice package
3300      - synchronized with main branch
3301    o DIVA:
3302      Modif.s in
3303      - the_main_loop.F
3304      - the_model_main.F
3305      and added cost_final_restore.F cost_final_store.F
3306      o With these changes, it is possible to fully separate
3307        the first forward run to compute the cost function (mdthe_main_loop)
3308        and adjoint runs over individual DIVA intervals (adthe_main_loop)
3309        into separate model executions.
3310        This enables better tuning of DIVA to given queue sizes.
3311      o Loss of cost function value in consecutive DIVA runs is
3312        fixed by storing to 'costfinal' file.
3313      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
3314        beginning/end of adjoint integration is accounted for.
3315      The current changes apply to TAF-1.4.26.
3316      TAF has one remaining bug, requiring one manual change
3317      (see MITgcm manual).
3318    o cal: synchronized between MAIN and ecco-branch
3319    
3320    checkpoint48i_post
3321    o Changes to restore differentiability of code w.r.t. previous tag
3322      (mostly adding new routines to make list and replacing
3323      pressure by totPhiHyd).
3324    o Updated and merged grdchk package
3325      - has both ADM and TLM checks
3326      - works for single- and multi-proc.
3327      - output cleaned
3328      - worked successfully for parallel DIVA
3329    o genmake:
3330      - Adding -platform=SP4
3331      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
3332    o Modif. for DIVA:
3333      ctrl_unpack should not be called in intermediate DIVA interval.
3334      (similar thing would apply for active files such as
3335      tbar, sbar, psbar, which should not be reinitialised;
3336      only relevant for ecco-branch)
3337    
3338    checkpoint48h_post
3339  o improve "ini_p_ground" when using finite difference form for calc_phi_hyd  o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
3340  o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F  o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
3341  o Added SEAICE_initialHEFF to pkg/seaice  o Added SEAICE_initialHEFF to pkg/seaice
3342    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
3343    
3344  checkpoint48g_post  checkpoint48g_post
3345  --- EOS:  --- EOS:

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