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revision 1.671 by jmc, Thu Jun 8 01:13:52 2006 UTC revision 1.919 by mlosch, Wed Dec 5 08:17:05 2007 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
8      SX vector computer.
9    o pkg/seaice: removed SEAICE_FFIELDS.h and seaice_get_forcing.F
10      seaice forcing fields can now be read only through pkg/exf
11    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
12    o pkg/exf: added CPP option EXF_SUBTRACT_UVVEL_FROM_UVWIND for subtracting
13      UVEL and VVEL from UWIND and VWIND prior to applying bulk formulae.
14    
15    checkpoint59k
16    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
17      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
18    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
19      all experiments pass when compile with un-initilised var. checking option.
20    o added pkg/salt_plume
21    o script to test restart (for now, in MITgcm_contrib/jmc_script)
22    o pkg/seaice: new read/write pickup version.
23      read meta file and write only fields which are needed to restart.
24      ( same logic as main pickup file ; also using pickupStrictlyMatch )
25    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
26    o lab_sea.hb87: modify the domain & update output.hb87.txt :
27      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
28      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
29      process. Fixed here by closing the domain at the Northern boundary.
30    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
31    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
32      a set of consecutive levels in/from a 3-D array.
33    o pkg/ptracers:
34      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
35      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
36    
37    checkpoint59j
38    o in pkgs: dic, obcs, offline, rbcs:
39      standard way to compute coeff. for time interpolation between 2 time reccords
40      which retains full precision (& make results less dependent on compiler).
41      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
42    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
43      packages instead of reading ice cover and wind speed separately
44    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
45     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
46      to allow to compile customized code before the update)
47    o cleaning-up:
48      - fix CPP instruction syntax in pkg/obcs
49      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
50        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
51      - fix some threads issue in IO parts.
52    o pkg/dic:
53      - add tons of "_d 0" (--> much better testreports !)
54       and then update outputs of tutorial_global_oce_biogeo
55    o pkg/mom_fluxform:
56      add a special version of momentum advection intended to conserve momentum
57      next to a bathymetry step or a coastline edge. (default = off = #undef)
58    o new read/write pickup version:
59      - for now, only implemented for main (mdsio) pickup file.
60      - write out only what is needed to restart; merge pickup_nh , pickup_ph
61        and main pickup together.
62      - read meta file; read only what is needed to restart; stop if a field
63        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
64        if it make sense (even if the restart is not perfect).
65      - if no meta file, assume that pickup to read corresponds exactly to
66        a pickup that would currently be written.
67      - read pickup written in the old format (until checkpoint59i) if it
68        recognizes an old meta file (no field-list).
69      - add a meta file in exp. which starts from a pickup: 2 cases:
70        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
71         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
72        b) a meta file describing the content of the associated pickup file
73         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
74    o pkg/mdsio & pkg/rw:
75      - new routine to read a meta file ; new set of routine to read
76        Multiple-fields file (with meta file).
77    o added open boundary conditions capability for seaice
78        HSNOW, HSALT, UICE, and VICE
79    
80    checkpoint59i
81    o adjoint:
82      * fix multiDimAdvection adjoint
83        (partial recomputation problem by TAF for fVerT(:,:,kDown)
84        and comlev1 size definition (maxpass vs. max. number of tracers)
85      * verification/global_ocean.90x45x15 adjoint now tests
86        NLFS and multiDimAdvection using DST3 (=30)
87      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
88    o pkg/kpp: add "_d 0" to real constant (if missing);
89      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
90      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
91    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
92      for internal parameters related to restart process (formerly from PARAMS.h)
93      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
94    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
95      as argument. (only atm2d & obcs write_pickup have not yet been updated)
96    o pkg/monitor:
97      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
98      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
99      - account for deep Atmosphere factor and density factor (anelastic)
100    o added open boundary conditions capability for seaice HEFF and AREA
101    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
102      thermodynamics
103      - requires a little reorganization, which affects the testreport results
104        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
105        so that now the conservative form is tested
106      - add a few comments
107    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
108    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
109    o add new diagnostics to seaice: advective, diffusive fluxes (only for
110      multidim-advection, for scheme 2 they are not filled) and transports,
111      thermodynamic growth rates
112    o change units of EmPmR (inside the code, + within coupling interface)
113      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
114      Affects results @ truncation level (cg2d match) and update output of
115       experiments: lab_sea(6), global_ocean.90x40x15(10),
116      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
117      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
118      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
119      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
120    
121    checkpoint59h
122    o pkg/exf:
123      - improve vectorization by moving if-statement out of loops in
124        exf_mapfields, exf_radiation
125      - exf_bulkformulae.F: introduce 2D fields and vectorize code
126    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
127    o testreport:
128      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
129        monitor & update offline_exf_seaice exp. output.
130      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
131    o pkg/seaice:
132      - bug fix in the evp solver: boundary conditions were affected be
133        masking of zMax/zMin (changes results)
134      - minor bug fix in boundary conditions in seaice_calc_strainrates
135        (changes results for no_slip)
136      - seaice_lsr.F: make interpolation of eta dependent on boundaries
137      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
138      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
139        stress formulation and no-slip boundary conditions
140    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
141      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
142    o pkg/seaice: a first HSALT time stepping equation has been checked in
143    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
144      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
145      without requiring DO-IF statements
146    o pkg/thsice:
147      use continuous power-law function for partition of energy between lateral
148      melting/freezing and thinning/thickening ; old code using step function
149      still available with #undef THSICE_FRACEN_POWERLAW
150      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
151    o testreport: change AD testing : check against results/output_adm.txt
152      using same scripts as for forward test.
153    
154    checkpoint59g
155    o adjoint testing: in preparation for changing testreport:
156      - output format: cost and grad written on separated lines
157      - ad output results in directory "results" (instead of "results_ad")
158    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
159    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
160    o pkg/ecco: allow user defined cost function contributions
161    o testreport:
162      Allow to choose (per experiment) the list of tested output variables
163       and the main variable (used to issue a pass/FAIL ) ;
164      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
165      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
166      Also modify printing of summary:
167       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
168       b) echo the list of tested variables in the individual summary.txt of
169          each experiment.
170    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
171      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
172      (but still depend on the tile decompostion of the domain).
173    o pkg/seaice: change a discretization detail to make the B-grid code
174      "more symmetric". This change is likely to remove all "ridges/leads" that
175      where quasi-aligned with the grid in B-grid solutions. It may also be
176      the solution to the stress coupling issues with the B-grid.
177    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
178      remove .cvsignore from input dir. (since testreport no longer run here).
179    o pkg/thsice:
180     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
181     - fix reshaping of sea-ice just after advection:
182       melt all the ice only if ice-volume is too small.
183     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
184       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
185     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
186    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
187      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
188    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
189      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
190      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
191      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
192      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
193      -> update output.txt
194    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
195     this affects truncation error: -> update output.txt of exp:
196      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
197      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
198    
199    checkpoint59f
200    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
201    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
202      a bounded range (in forward mode)
203    o pkg/ecco, ctrl, autodiff and mom_common:
204     internal parameter controls, completements of implementations
205    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
206    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
207      (not seem any difference in testing results).
208    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
209       at face corners.
210    o pkg/generic_advdiff:
211     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
212      loop range indices for computing vertical advection tendency
213      and do the calculation in the interior only (no overlap) ;
214      for now, only implemented for SOM advection (to save CPU time).
215     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
216    o exch2 adjoint
217      First set of changes:
218      - add exch2 hand-written adjoint templates
219      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
220        This will require cleanup in pkg/autodiff/*.F
221        (changed routines currently kept separate in verif. code/)
222      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
223        that used to hide exch2 or cubed-sphere specific code
224        (commented via 'cph-exch2')
225    o pkg/seaice
226      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
227    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
228       output of global_ocean.cs32x15.thsice .
229    
230    checkpoint59e
231    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
232      for B-grid vector (not yet tested) and C-grid vector (<- only used
233      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
234    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
235      (#ifdef ALLOW_SALT_PLUME)
236    o gather_2d/scatter_2d: removed halo regions
237    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
238      scheme and the corresponding test case (under front_relax dir). For now,
239      only available with Skew-flux form and not yet tested in realistic set-up.
240      adjoint: store directives updated, but gradient checks deteriorated,
241      so maybe GM/Redi adjoint is now broken.
242    o seaice adjoint
243      * add AREA, HEFF, HSNOW as control variable
244        (should not change lab_sea results)
245      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
246    o pkg/seaice:
247      * added computation of saltFlux in seaice_growth;
248        For time being, sea ice salinity is assumed constant
249        contribution of snow flooding to freshening of sea ice is neglected.
250        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
251        defaults to 0.0 in order to maintain backward compatibility.
252        Typical values for SEAICE_salinity are 4 to 10 g/kg.
253      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
254      * added SEAICE_availHeatFrac, which specifies fraction of surface level
255        heat content used to melt or grow ice
256      * commented out cap of HICE: it helps keep ice thinner
257      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
258      * applied OBCS T/S mask to HEFFM sea ice mask
259    
260    checkpoint59d
261    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
262     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
263     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
264    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
265     and change default value of parameter "GM_Small_Number";
266     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
267       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
268       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
269    o pkg/ecco: cost function when applying pkg/smooth to controls
270    o pkg/ctrl: add forcingPrecond run time parameter
271    o pkg/seaice:
272     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
273     - fix bug in metric terms of u-equation in LSR solver (implicit part),
274       changes verification/lab_sea
275     - rearrange implicit part of u-equation in LSR solver to make it easier to
276       read, understand, and debug. This causes changes at the truncation level.
277     - fix (serious) bug in the boundary conditions (sign error in the implicit
278       part) of the LSR solver. Changes all LSR results.
279     - fixed problem with HSNOW initialization to avoid thick snow when AREA
280       is initilized with small values - does not change lab_sea results.
281     - added HsnowFile initialization capability
282    o pkg/smooth: addition to model/src and pkg/ctrl so allow
283     initialization of pkg/smooth and application to control vector
284    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
285    o dependencies: pkg/profiles requires pkg/cal
286    o pkg/profiles:
287     - added option ALLOW_PROFILES_GENERICGRID
288         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
289         that interpolation information (grid points and coefficients) is provided
290         within the netcdf input files.
291         -> sample matlab scripts can be found in MITgcm_contrib/gael
292         that allow you to prepare netcdf input files.
293     - also modified: cleaner include statements, cleaner error print statements,
294       cleaner stops when error, and more tests of the netcdf input files consistency.
295    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
296    o pkg/seaice:
297     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
298       requires a new routine: seaice_diagnostics_fill.F
299     - make sure that seaice does not move if not forced (pressure replacement
300       method, Hibler and Ip, 1995), changes results
301     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
302     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
303       It is turned off by default (=-1.), because it changes the results.
304     - make it possible to read AREA from a file, too.
305    
306    checkpoint59c
307    o add S/R and diagnostics for oceanic mixed-layer depth
308    o move GMRedi call after all vertical mixing schemes (including KPP)
309    o pkg/thsice:
310     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
311      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
312    o pkg/obcs:
313     - bug fix for balance code
314    o pkg/seaice:
315      - allow values of SEAICE_elasticParm > 1
316      - add new parameter SEAICE_evpTauRelax as an alternative
317        to SEAICE_elasticParm
318      - make lsr boundary conditions free slip (by default), changes result
319      - add code for no slip boundary conditions for lsr
320      - set minimum of zeta to zero (and not 4e8) (changes results)
321      - add a cap on AREA after advecting AREA if seaice_growth is not called
322    o change calculation of Visbeck K:
323      - no longer depend on tapering scheme; instead, compute slope (limited
324        by GM_maxSlope). this is equivalent to what was comuted before with
325        clipping or linear tappering.
326      - fix vertical averaging (wrong by 1/2 level)
327      - leave the old version (but will not be maintained) within
328        #ifdef OLD_VISBECK_CALC / #endif
329      - update output of exp. ideal_2D_oce
330    o change error catch in calc_r_star to improve vectorization
331    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
332      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
333    o adjoint:
334      Re-organized adjoint checkpointing according to Matt Mazloff
335      (but with modifs/completions/cleanups)
336      Storing is now bundled into large arrays to optimized I/O
337      (and second step in cleanup of the_main_loop)
338    
339    checkpoint59b
340    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
341      - export/import (between ocean & coupler) fields needed for ocean DIC.
342    o pkg/seaice:
343      - get rid of three more exchanges seaice_calc_viscosities (required
344        different loop boundaries in seaice_lsr and seaice_ocean_stress)
345      - bug fix in seaice_ocean_stress (update of lab_sea required)
346      - reduce loop boundaries to necessary minimum also in seaice_evp
347      - go back to the old way of computing deltaC/Z as the adjoint likes that
348        better
349    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
350      passive tracer to an Age Tracer) + update output.txt
351    o pkg/exf:
352      - implement A-grid / C-grid selection for wind-stress input files.
353      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
354      for now, in exf_bulk_largeyeager04.F only :
355      - change implementation for case where windspeed + 2. components wind-stress
356        are read-in. AND use rhoConstFresh to convert evap.
357    o pkg/seaice:
358      - use correct EXCH_UV for wind-forcing (on A-grid).
359      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
360        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
361    o pkg/exf:
362      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
363      EXF_INTERPOLATION:
364      - merge global_with_exf/code version of exf_interp_read.F
365        to the main code ;
366      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
367        reading the file ; Important: This options needs to be defined to recover
368        previous code.
369        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
370      - no longer loose real*8 precision along the way when using exf_iprec=64.
371    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
372      - change discretisation of evp-solver in order to avoid another exchange
373        (changes lab_sea) and clean up a little
374      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
375        help the adjoint (this also changes the results slightly)
376      - add a few "_d 0" where they had been missing in seaice_evp.F
377      - cleaning up: remove unused seaice_calc_rhs.F
378    o pkg/exf: some cleaning-up:
379      - change various "constants" into runtime parameters
380      - cleaned-up Large&Yeager04 routine which should eventually
381        replace exf_bulkformulae.F (changed names of S/R and CPP)
382        and merged various ALLOW_ATM_WIND options
383     only used with thsice pkg (in thsice_get_exf.F):
384      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
385        which are used when useStabilityFct_overIce=TRUE (= the default)
386      - change default values of ice & snow emissivity and scale downward LW
387        by ice & snow emissivity.
388    o pkg/thsice:
389     fix few little problems, in thsice_calc_thickn.F:
390      - growth vertically (and not laterally) if iceFrac == iceMaskMax
391      - melt only laterally if hIce < hThinIce (as the comments say)
392      and in thsice_extend.F:
393      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
394      - start to form ice as soon as the minimum ice-volume is reachable.
395     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
396      and cpl_aim+ocn
397    o pkg/kpp
398     - move computation of surface related input fields to KPP into a new
399       subroutine kpp_forcing_surf.F
400     - remove wrong (within bi,bj loops) EXCH calls.
401     - little cleaning (add argument myThid in last position, cvs header ...)
402     - for now, fix conservation problem by exchanging KPPviscAz (may not
403       be the best fix)
404    o pkg/seaice
405     - check for inconsistent evp parameter/cpp-flag combination
406     - remove leftover errIO flat for obsolete name list error handling
407    o OpenAD
408     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
409    
410    checkpoint59a
411    o pkg/seaice: some parameter clarifications and a little bit of clean up
412    o pkg/thsice: rename run-time parameters:
413       himin       -> hIceMin
414       himin0      -> hThinIce
415       hihig       -> hThickIce
416       i0          -> i0swFrac
417       transCoef   -> bMeltCoef
418       frac_energy -> fracMelting
419      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
420       with default values (for now) that do not change the results.
421      remove old version of thsice vars advection in pkg/seaice.
422    o in FFIELDS.h:
423      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
424      - make pLoad & sIceLoad always available (but still only used if
425         ATMOSPHERIC_LOADING is #define).
426    o pkg/kpp: replaced _KPP_RL with _RL
427    o bug fixes for vertical diffusivity computations when both KPP and
428        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
429        are no longer updating the vertical diffusivity array
430        (passed as argument) but are (re-) setting those arrays.
431    o pkg/seaice: fix bug in evp solver, while doing that
432      - change (improve?) discretization of stress computations for both
433        cgrid-lsr and evp solver
434      - add a new routine to compute strain rates
435      - the above changes lab_sea results
436      - add no slip conditions for evp solver (off by default), lsr-version
437        may follow
438      - fix exchange for shear at Z-points (does not change lab_sea)
439      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
440        (to force the user to pick a time step since there is not "safe" way
441        of choosing it)
442      - add principal stress diagnostics
443      - rearrange fields for evp a little to avoid having to call a: too many
444        exchanges and b: exchanges for stress trensor components which we do
445        not have.
446      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
447        of evp, complete rewrite for lsr case (latter is does not yet work
448        in all cases)
449    o pkg/kpp: add code to have mixing in shelf ice caverns
450      - add myThid to all kpp routines (long overdue)
451    
452    checkpoint59
453    o pkg/exf:
454      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
455        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
456      - move exf header files from lower_case.h to UPPER_CASE.h ;
457        add missing cvs Header & Name
458      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
459      - add namelist param. selectStressGridPosition, exf_monFreq
460      - retire many _CLIM routines, and remove data.exf_clim
461        + params moved to data.exf
462        + climsst, climsss now handled by exf_set_gen, i.e.
463          climss?period=0 refers to constant field,
464          climss?period=-12 to monthly forcing
465      - split up namelists in data.exf
466    o pkg/seaice:
467      - remove seaice_exch and seaice_exch_uv
468      - remove superfluous exchange of theta
469      - add myThid to seaice_budget_ocean/ice
470      - add new interface for atmospheric wind forcing (C-grid only)
471        + new routine
472        + two new field (taux, tauy for stress over ice)
473        + removed one global field (DAIRN) for C-grid case only
474    o pkg/thsise
475      - 2nd set of modifs for thsice adjoint in conjunction with exf
476    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
477    
478    checkpoint58y_post
479    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
480      vertical diffusivity, similar to that in MOM4; turned on using
481      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
482      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
483    o Added capability for 3D specification of background vertical diffusion
484      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
485      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
486      "data" file that contains the 3D vertical diffusivity coefficients.
487    o ice dynamics (pkg/seaice) with thsice thermodynamics:
488      - add code within pkg thsice to advect & diffuse sea-ice fields
489      similar to (and will replace) what has been added in  seaice_advdiff.F,
490      but: - conserving Mass, Heat & Salt.
491           - better when using non-linear advection scheme (not yet fully tested)
492           - can also be used in atmospheric set-up (for now, only the diffusion).
493    
494    checkpoint58x_post
495    o IO option for global-file compact format:
496      - add options when generating topology (utils/exch2/matlab-topology-generator)
497      - add I/O capability (pkg/mdsio).
498      - adapt utils/matlab/rdmds.m to read this format.
499      for now long-line format not yet supported by pkg/mdsio (& exch2).
500    o shelfice: add a few diagnostics
501    
502    checkpoint58w_post
503    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
504      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
505      (and replace horiVertRatio in NH code).
506      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
507                         and tutorial_plume_on_slope (sensitive to truncation)
508    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
509      directly to drive seaice model (C-grid only)
510    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
511     - reintroduce computation of wind from stress,
512     - compute tau (in exf_bulkformulae.F) from windstress averaged to
513       mass points to avoid tau = 0
514     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
515    o rdmnc.m: make it work with "global" files created with gluemnc
516    o rdmnc.m : some improvements in dealing with singleton dimension
517      (tested on all testreport mnc output files).
518    o genmake2: disable pkg/profiles if netcdf test fails.
519    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
520    o move call to cal_readparms up to make calendar parameters/variable available
521      to all packages
522    
523    checkpoint58v_post
524    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
525      useDynP_inEos_Zc tested.
526    o pkg/exf: changes to properly interpolate/mask/scale initial fields
527    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
528      and portions thereof.  See read_cs.txt for description and examples.
529    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
530      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
531      following the great-circle arc between those 2 points.
532    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
533      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
534    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
535     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
536     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
537     - still needs work (not working with some options ; efficiency to improve)
538       and serious testing.
539     - use this scheme for temperature & salinity in 2 advection test exp.:
540       advect_xy & advect_xz, respectively.
541    
542    checkpoint58u_post
543    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
544    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
545    o testreport: add option "-skipdir" to skip some test.
546    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
547      momentum calculation.
548    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
549    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
550      remove checkpoint.F and the_correction_step.F (no longer used);
551      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
552    o add option (linFSConserveTr) to correct for tracer source/sink due to
553      Linear Free surface
554    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
555    o pkg/thsice: fix reading mnc-pickups
556    
557    checkpoint58t_post
558    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
559    o pkg/mdsio:
560     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
561       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
562       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
563     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
564     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
565       either MDS_READ_FIELD or MDS_WRITE_FIELD )
566     - new S/R (to replace MDSWRITEMETA), which allows to write more
567       informations (variable names, time ...) to meta files.
568     - modify rdmds.m to give back the meta file content.
569    o pkg/diagnostics: change vertical interpolation to be safer, and more
570       flexible (define p-levels to interpolate to in data.diagnostics);
571      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
572       diagnostic pointer.
573    o pkg/seaice: more cleaning up of seaice_growth, added many comments
574    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
575    o fix multi-category seaice:
576     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
577       SEAICE_MULTICATEGORY
578     - fix short wave heat flux
579    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
580       and allow to use EVP solver. Change forward lab_sea: test both EVP
581       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
582    o Initial check-in of lab_sea adjoint
583      (very similar to natl_box_adjoint/code_seaice)
584      * used C-grid and EVP solver
585      * used KPP, GM/Redi
586      * uses inAdExact=.TRUE.
587      * gradient checks fail for both ADM and TLM
588        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
589        f.d. gradients actually seem more problematic than ADM, TLM gradients;
590        issue is related to forward mismatch between g77 an ifort
591    o pkg/seaice: overhaul of thermodynamics
592     - growth.F and groatb.F are replaced by new routine seaice_growth.F
593     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
594     - move a few global fields out of SEAICE.h into seaice_growth.F and
595       make them 2D (FICE/QNETO/ ...)
596     - remove FO (it is the same as QNETO)
597     - introduce a few local fields to avoid modifying external fields such
598       as atemp, etc.
599    
600    checkpoint58s_post
601    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
602      changed exf_set_gen.F so that
603        genperiod=0 means input file is one time-constant field and
604        genperiod=-12 means input file contains 12 monthly means
605    o CG2D: use pre-computed solver main-diagonal (stored in common block);
606      this affects truncation error ; generate new output file for exp. which
607      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
608        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
609        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
610        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
611        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
612        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
613    o start implementation of deep-atmosphere and anelastic formulation
614    o verification: remove 2nd copy of input files and use script "prepare_run"
615      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
616    o mom_common/vecinv/fluxform: fix a few initialisation isssues
617    o profiles: fix for multithreaded case
618    
619    o diagnostics: rename few diags:
620      s/'PRESSURE'/'RCENTER '/g
621      s/'TICE    '/'oceFreez'/g
622      s/'TAUX    '/'oceTAUX '/g
623      s/'TAUY    '/'oceTAUY '/g
624      s/'SWFLUX  '/'oceQsw  '/g
625      s/DIFx/DFxE/g
626      s/DIFy/DFyE/g
627      and add few ocean-forcing diagnostics:
628      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
629    o modifications to pkg/seaice/growth.F and budget.F, which change results of
630      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
631      as actual snow thickness.  It now refers everywhere to effective snow
632      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
633    
634    checkpoint58r_post
635    o modifications to pkg/seaice/growth.F, which change results of
636      lab_sea experiment: fixes pertain to melting snow over open water, to
637      masking EVAP under sea ice, and to using the correct AREA variable for
638      computations of EVAP, PRECIP, HSNOW, and GHEFF
639    o add ability to read bathy, salt, and theta using MNC (off by def)
640    o add flooding algorithm and advection of HSNOW for pkg/seaice;
641      both are turned off by default and do no change any results
642    o seaice advection with pkg/thsice: a step toward the use of non-linear
643      advection scheme, but #ifdef or commented out for now (requires more EXCH).
644    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
645      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
646      in natl_box (affects results @ truncation level: update output.txt)
647    o multi-threading and IO:
648      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
649      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
650        (needed to work with SingleCpuIO): tested in all verif. exp.
651    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
652      affects the results (but none of the verification test uses this scheme).
653    o Adding some pkg/diagnostics capability to pkg/seaice
654      (will certainly be subject to changes)
655    o ctrl: adding new control variables:
656      lwflux, lwdown, evap, snowprecip, apressure, runoff
657    
658    checkpoint58q_post
659    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
660      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
661      high_res_cube configuration by 4% on Columbia.
662    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
663      add (in global_with_exf/code) a version of EXF_INTERP_READ without
664      dynamical allocation (seems to work in multi-threaded).
665    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
666      single CPU io) so that TAF does not have to see EESUPPORT.h
667    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
668    
669    checkpoint58p_post
670    o obcs: stop if obcs is used with useCDscheme = .true.
671    o shelfice:
672     - fix a sign error so that no slip at shelfice interface works
673     - remove stop for combination non-hydrostatic code and shelfice. That does
674       not mean, that the results are correct, but at least they are numerically
675       stable
676    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
677    o added adjoint exch routined for all exch*3d* routines
678      and updated flow directives
679    
680    checkpoint58o_post
681    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
682      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
683    o change controling S/R for writing pickup file (new S/R do_write_pickup)
684      and clean-up reading/writing of pickup files.
685    o fix local version of read/write pickup (NH part) in rotating_tank/code
686    o simplify EXCH interface:
687     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
688     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
689    o added the regrid package
690    o shelfice:
691     - add a simple boundary layer scheme to reduce noise
692     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
693    
694    checkpoint58n_post
695    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
696       local variable (not in common block).
697    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
698      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
699      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
700        to work with SingleCpuIO.
701    o add "_d 0" to real constant of pkg/cfc subroutines ;
702       update exp. cfc_exemple & tutorial_cfc_offline output files.
703    o multi-threading and IO:
704      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
705        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
706      - barrier before and after reading.
707      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
708      - avoid using MDS_WRITELOCAL for LAND pkg output.
709      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
710        common-block variables ; Allows multi-threading with master-thread IO.
711    o change default MAX_NO_THREADS from 32 to 4 ;
712      and stop cleanly when MAX_NO_THREADS is too small.
713    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
714    
715    checkpoint58m_post
716    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
717       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
718    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
719       keep global_ocean.90x40x15 (for AD testing) with former secondary test
720       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
721    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
722        add MITgcm_tutorials (= code + all the tutorials)
723    o ecco, option to compute cost for total ssh (mean+anom)
724    o consistent with addition of ptracer and ssh in pkg/profiles
725    o profiles: adding ptracer and ssh
726    o testreport: change multi-test output-file name
727      (from output.txt.{name} to output.{name}.txt)
728    o profiles: now ok for mutli-tiles case
729    o seaice: add 4 parameters for different advection schemes for area,
730      (effective) seaice thickness, enthalphy, and snow height. Their default
731      is the standard parameter SEAICEadvScheme
732    o calc_gw:
733     - add cosFacU in zonal viscous flux (harmonic.visc.).
734     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
735       of tutorial_plume_on_slope.
736    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
737    o calc_gw: true flux-form, account for horizontal grid spacing.
738      update rotating_tank results, but not plume_on_slope (affected at
739      truncation level, 11 digits).
740    
741    checkpoint58l_post
742    o calc_gw:
743     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
744     - remove side-drag for now (need to fix it); update plume_on_slope results.
745     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
746    o commit code to make SST/SSS weights spatially variable
747      (based on either variable in-situ or variable initial T/S weights)
748    o pkg/ecco:
749      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
750        now based on horizontally varying weights wthetaLev, wsaltLev
751      * cost_averagesflags now returns year indices in addition to day, month
752      * sflux balance is performed on annual basis
753        (sflxumm, sfluxmm2, bal_sfluxmm)
754      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
755        including separate counting and multipliers
756    o pkg/rbcs
757      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
758    
759    checkpoint58k_post
760    o testreport:
761     - always build in dir. "build" (if not there, mkdir build instead of building
762       & running in input)
763     - run in dir run (if it exists), in build otherwise.
764     - call prepare_run (if input/prepare_run exists)
765     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
766    o pkg/exf modifications to interpolation and rotation routines for more
767       reasonable treatment of North Pole singularity: for tracers North Pole
768       value is set to northernmost zonal-mean value, for zonal velocity it is
769       set to zero, and for meridional velocity it is set to northernmost value.
770    o pkg/exf/exf_check_range.F
771     - add tile index to diagnostics and move stop statement to the very
772       end of the routine.
773    o pkg/diagnostics: (diagnostics_main_init.F)
774      define title of isomorphic variables according to the current config.
775    o pkg/thsice with pkg/seaice dynamics:
776    - fix domain of computation (interior only, required for exf) and do exchanges
777    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
778    o towards a standard way of dealing with multi-threading in MONITOR
779      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
780    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
781       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
782    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
783    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
784    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
785       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
786    o tracer advection:
787     - clean-up and simplify calc_common_factors.F
788     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
789       advection subroutine (but still not used within DST advection S/R)
790    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
791    
792    checkpoint58j_post
793    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
794      from file (collects calls previously in FORWARD_STEP)
795    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
796    o adjoint store dir. adjusted accordingly
797    o genmake2
798      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
799    
800    checkpoint58i_post
801    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
802      on wind stress (SEAICEstressFactor defaults to 1.)
803    o Total number of Timers is finite (<=40): comment out 2 non-essential one
804      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
805    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
806      on CS-grid: no longer loosing mass.
807    o exf & curvilinear-grid: no longer modify longitude xC & xG.
808  o pkg/ggl90: fix sloppy output and fix a bug  o pkg/ggl90: fix sloppy output and fix a bug
809    o pkg/seaice: added SEAICEuseEVPpickup parameter
810      - Set to false in order to start EVP solver with
811        non-EVP pickup files when using SEAICEuseEVP
812      - fix sign error in diffusion in seaice_calc_rhs
813    
814  checkpoint58h_post  checkpoint58h_post
815  * Modifications for bottom topography control  * Modifications for bottom topography control

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