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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.1095 by jmc, Mon May 11 12:36:41 2009 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  o adding precip control xx_precip  o eesupp & mdsio (SingleCpuIO):
8  o moved ptracer ctrl index 17 -> 32    - 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:  o in natl_box_adjoint:
1914    * updated: results_bulk/    * updated exp 1 to 10
1915    * not yet updated: results/, results_seaice/      (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  checkpoint57m_post
1923  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
# Line 591  o add two new packages Line 2500  o add two new packages
2500    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2501    - these scheme operate in a similar manner as KPP (without ghat, of    - 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      course), however there is only one diffusivity that is used for both
2503      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2504  o add offline package  o add offline package
2505  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2506    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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