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revision 1.803 by mlosch, Mon Apr 30 22:48:52 2007 UTC revision 1.899 by dimitri, Fri Oct 26 02:00:47 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 new read/write pickup version:
8      - for now, only implemented for main (mdsio) pickup file.
9      - write out only what is needed to restart; merge pickup_nh , pickup_ph
10        and main pickup together.
11      - read meta file; read only what is needed to restart; stop if a field
12        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
13        if it make sense (even if the restart is not perfect).
14      - if no meta file, assume that pickup to read corresponds exactly to
15        a pickup that would currently be written.
16      - read pickup written in the old format (until checkpoint59i) if it
17        recognizes an old meta file (no field-list).
18      - add a meta file in exp. which starts from a pickup: 2 cases:
19        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
20         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
21        b) a meta file describing the content of the associated pickup file
22         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
23    o pkg/mdsio & pkg/rw:
24      - new routine to read a meta file ; new set of routine to read
25        Multiple-fields file (with meta file).
26    o added open boundary conditions capability for seaice
27        HSNOW, HSALT, UICE, and VICE
28    
29    checkpoint59i
30    o adjoint:
31      * fix multiDimAdvection adjoint
32        (partial recomputation problem by TAF for fVerT(:,:,kDown)
33        and comlev1 size definition (maxpass vs. max. number of tracers)
34      * verification/global_ocean.90x45x15 adjoint now tests
35        NLFS and multiDimAdvection using DST3 (=30)
36      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
37    o pkg/kpp: add "_d 0" to real constant (if missing);
38      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
39      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
40    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
41      for internal parameters related to restart process (formerly from PARAMS.h)
42      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
43    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
44      as argument. (only atm2d & obcs write_pickup have not yet been updated)
45    o pkg/monitor:
46      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
47      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
48      - account for deep Atmosphere factor and density factor (anelastic)
49    o added open boundary conditions capability for seaice HEFF and AREA
50    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
51      thermodynamics
52      - requires a little reorganization, which affects the testreport results
53        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
54        so that now the conservative form is tested
55      - add a few comments
56    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
57    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
58    o add new diagnostics to seaice: advective, diffusive fluxes (only for
59      multidim-advection, for scheme 2 they are not filled) and transports,
60      thermodynamic growth rates
61    o change units of EmPmR (inside the code) from m/s to kg/m2/s (mass flux) but
62      leave input file unchanged. Affects results @ truncation level (cg2d match)
63      and update output of experiments: lab_sea(6), global_ocean.90x40x15(10),
64      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
65      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
66      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
67    
68    checkpoint59h
69    o pkg/exf:
70      - improve vectorization by moving if-statement out of loops in
71        exf_mapfields, exf_radiation
72      - exf_bulkformulae.F: introduce 2D fields and vectorize code
73    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
74    o testreport:
75      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
76        monitor & update offline_exf_seaice exp. output.
77      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
78    o pkg/seaice:
79      - bug fix in the evp solver: boundary conditions were affected be
80        masking of zMax/zMin (changes results)
81      - minor bug fix in boundary conditions in seaice_calc_strainrates
82        (changes results for no_slip)
83      - seaice_lsr.F: make interpolation of eta dependent on boundaries
84      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
85      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
86        stress formulation and no-slip boundary conditions
87    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
88      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
89    o pkg/seaice: a first HSALT time stepping equation has been checked in
90    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
91      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
92      without requiring DO-IF statements
93    o pkg/thsice:
94      use continuous power-law function for partition of energy between lateral
95      melting/freezing and thinning/thickening ; old code using step function
96      still available with #undef THSICE_FRACEN_POWERLAW
97      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
98    o testreport: change AD testing : check against results/output_adm.txt
99      using same scripts as for forward test.
100    
101    checkpoint59g
102    o adjoint testing: in preparation for changing testreport:
103      - output format: cost and grad written on separated lines
104      - ad output results in directory "results" (instead of "results_ad")
105    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
106    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
107    o pkg/ecco: allow user defined cost function contributions
108    o testreport:
109      Allow to choose (per experiment) the list of tested output variables
110       and the main variable (used to issue a pass/FAIL ) ;
111      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
112      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
113      Also modify printing of summary:
114       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
115       b) echo the list of tested variables in the individual summary.txt of
116          each experiment.
117    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
118      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
119      (but still depend on the tile decompostion of the domain).
120    o pkg/seaice: change a discretization detail to make the B-grid code
121      "more symmetric". This change is likely to remove all "ridges/leads" that
122      where quasi-aligned with the grid in B-grid solutions. It may also be
123      the solution to the stress coupling issues with the B-grid.
124    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
125      remove .cvsignore from input dir. (since testreport no longer run here).
126    o pkg/thsice:
127     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
128     - fix reshaping of sea-ice just after advection:
129       melt all the ice only if ice-volume is too small.
130     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
131       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
132     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
133    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
134      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
135    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
136      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
137      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
138      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
139      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
140      -> update output.txt
141    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
142     this affects truncation error: -> update output.txt of exp:
143      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
144      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
145    
146    checkpoint59f
147    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
148    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
149      a bounded range (in forward mode)
150    o pkg/ecco, ctrl, autodiff and mom_common:
151     internal parameter controls, completements of implementations
152    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
153    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
154      (not seem any difference in testing results).
155    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
156       at face corners.
157    o pkg/generic_advdiff:
158     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
159      loop range indices for computing vertical advection tendency
160      and do the calculation in the interior only (no overlap) ;
161      for now, only implemented for SOM advection (to save CPU time).
162     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
163    o exch2 adjoint
164      First set of changes:
165      - add exch2 hand-written adjoint templates
166      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
167        This will require cleanup in pkg/autodiff/*.F
168        (changed routines currently kept separate in verif. code/)
169      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
170        that used to hide exch2 or cubed-sphere specific code
171        (commented via 'cph-exch2')
172    o pkg/seaice
173      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
174    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
175       output of global_ocean.cs32x15.thsice .
176    
177    checkpoint59e
178    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
179      for B-grid vector (not yet tested) and C-grid vector (<- only used
180      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
181    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
182      (#ifdef ALLOW_SALT_PLUME)
183    o gather_2d/scatter_2d: removed halo regions
184    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
185      scheme and the corresponding test case (under front_relax dir). For now,
186      only available with Skew-flux form and not yet tested in realistic set-up.
187      adjoint: store directives updated, but gradient checks deteriorated,
188      so maybe GM/Redi adjoint is now broken.
189    o seaice adjoint
190      * add AREA, HEFF, HSNOW as control variable
191        (should not change lab_sea results)
192      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
193    o pkg/seaice:
194      * added computation of saltFlux in seaice_growth;
195        For time being, sea ice salinity is assumed constant
196        contribution of snow flooding to freshening of sea ice is neglected.
197        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
198        defaults to 0.0 in order to maintain backward compatibility.
199        Typical values for SEAICE_salinity are 4 to 10 g/kg.
200      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
201      * added SEAICE_availHeatFrac, which specifies fraction of surface level
202        heat content used to melt or grow ice
203      * commented out cap of HICE: it helps keep ice thinner
204      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
205      * applied OBCS T/S mask to HEFFM sea ice mask
206    
207    checkpoint59d
208    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
209     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
210     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
211    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
212     and change default value of parameter "GM_Small_Number";
213     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
214       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
215       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
216    o pkg/ecco: cost function when applying pkg/smooth to controls
217    o pkg/ctrl: add forcingPrecond run time parameter
218    o pkg/seaice:
219     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
220     - fix bug in metric terms of u-equation in LSR solver (implicit part),
221       changes verification/lab_sea
222     - rearrange implicit part of u-equation in LSR solver to make it easier to
223       read, understand, and debug. This causes changes at the truncation level.
224     - fix (serious) bug in the boundary conditions (sign error in the implicit
225       part) of the LSR solver. Changes all LSR results.
226     - fixed problem with HSNOW initialization to avoid thick snow when AREA
227       is initilized with small values - does not change lab_sea results.
228     - added HsnowFile initialization capability
229    o pkg/smooth: addition to model/src and pkg/ctrl so allow
230     initialization of pkg/smooth and application to control vector
231    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
232    o dependencies: pkg/profiles requires pkg/cal
233    o pkg/profiles:
234     - added option ALLOW_PROFILES_GENERICGRID
235         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
236         that interpolation information (grid points and coefficients) is provided
237         within the netcdf input files.
238         -> sample matlab scripts can be found in MITgcm_contrib/gael
239         that allow you to prepare netcdf input files.
240     - also modified: cleaner include statements, cleaner error print statements,
241       cleaner stops when error, and more tests of the netcdf input files consistency.
242    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
243    o pkg/seaice:
244     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
245       requires a new routine: seaice_diagnostics_fill.F
246     - make sure that seaice does not move if not forced (pressure replacement
247       method, Hibler and Ip, 1995), changes results
248     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
249     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
250       It is turned off by default (=-1.), because it changes the results.
251     - make it possible to read AREA from a file, too.
252    
253    checkpoint59c
254    o add S/R and diagnostics for oceanic mixed-layer depth
255    o move GMRedi call after all vertical mixing schemes (including KPP)
256    o pkg/thsice:
257     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
258      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
259    o pkg/obcs:
260     - bug fix for balance code
261    o pkg/seaice:
262      - allow values of SEAICE_elasticParm > 1
263      - add new parameter SEAICE_evpTauRelax as an alternative
264        to SEAICE_elasticParm
265      - make lsr boundary conditions free slip (by default), changes result
266      - add code for no slip boundary conditions for lsr
267      - set minimum of zeta to zero (and not 4e8) (changes results)
268      - add a cap on AREA after advecting AREA if seaice_growth is not called
269    o change calculation of Visbeck K:
270      - no longer depend on tapering scheme; instead, compute slope (limited
271        by GM_maxSlope). this is equivalent to what was comuted before with
272        clipping or linear tappering.
273      - fix vertical averaging (wrong by 1/2 level)
274      - leave the old version (but will not be maintained) within
275        #ifdef OLD_VISBECK_CALC / #endif
276      - update output of exp. ideal_2D_oce
277    o change error catch in calc_r_star to improve vectorization
278    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
279      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
280    o adjoint:
281      Re-organized adjoint checkpointing according to Matt Mazloff
282      (but with modifs/completions/cleanups)
283      Storing is now bundled into large arrays to optimized I/O
284      (and second step in cleanup of the_main_loop)
285    
286    checkpoint59b
287    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
288      - export/import (between ocean & coupler) fields needed for ocean DIC.
289    o pkg/seaice:
290      - get rid of three more exchanges seaice_calc_viscosities (required
291        different loop boundaries in seaice_lsr and seaice_ocean_stress)
292      - bug fix in seaice_ocean_stress (update of lab_sea required)
293      - reduce loop boundaries to necessary minimum also in seaice_evp
294      - go back to the old way of computing deltaC/Z as the adjoint likes that
295        better
296    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
297      passive tracer to an Age Tracer) + update output.txt
298    o pkg/exf:
299      - implement A-grid / C-grid selection for wind-stress input files.
300      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
301      for now, in exf_bulk_largeyeager04.F only :
302      - change implementation for case where windspeed + 2. components wind-stress
303        are read-in. AND use rhoConstFresh to convert evap.
304    o pkg/seaice:
305      - use correct EXCH_UV for wind-forcing (on A-grid).
306      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
307        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
308    o pkg/exf:
309      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
310      EXF_INTERPOLATION:
311      - merge global_with_exf/code version of exf_interp_read.F
312        to the main code ;
313      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
314        reading the file ; Important: This options needs to be defined to recover
315        previous code.
316        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
317      - no longer loose real*8 precision along the way when using exf_iprec=64.
318    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
319      - change discretisation of evp-solver in order to avoid another exchange
320        (changes lab_sea) and clean up a little
321      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
322        help the adjoint (this also changes the results slightly)
323      - add a few "_d 0" where they had been missing in seaice_evp.F
324      - cleaning up: remove unused seaice_calc_rhs.F
325    o pkg/exf: some cleaning-up:
326      - change various "constants" into runtime parameters
327      - cleaned-up Large&Yeager04 routine which should eventually
328        replace exf_bulkformulae.F (changed names of S/R and CPP)
329        and merged various ALLOW_ATM_WIND options
330     only used with thsice pkg (in thsice_get_exf.F):
331      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
332        which are used when useStabilityFct_overIce=TRUE (= the default)
333      - change default values of ice & snow emissivity and scale downward LW
334        by ice & snow emissivity.
335    o pkg/thsice:
336     fix few little problems, in thsice_calc_thickn.F:
337      - growth vertically (and not laterally) if iceFrac == iceMaskMax
338      - melt only laterally if hIce < hThinIce (as the comments say)
339      and in thsice_extend.F:
340      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
341      - start to form ice as soon as the minimum ice-volume is reachable.
342     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
343      and cpl_aim+ocn
344    o pkg/kpp
345     - move computation of surface related input fields to KPP into a new
346       subroutine kpp_forcing_surf.F
347     - remove wrong (within bi,bj loops) EXCH calls.
348     - little cleaning (add argument myThid in last position, cvs header ...)
349     - for now, fix conservation problem by exchanging KPPviscAz (may not
350       be the best fix)
351    o pkg/seaice
352     - check for inconsistent evp parameter/cpp-flag combination
353     - remove leftover errIO flat for obsolete name list error handling
354    o OpenAD
355     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
356    
357    checkpoint59a
358  o pkg/seaice: some parameter clarifications and a little bit of clean up  o pkg/seaice: some parameter clarifications and a little bit of clean up
359  o pkg/thsice: rename run-time parameters:  o pkg/thsice: rename run-time parameters:
360     himin       -> hIceMin     himin       -> hIceMin
# Line 21  o in FFIELDS.h: Line 372  o in FFIELDS.h:
372       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
373  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
374  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
375      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
376        are no longer updating the vertical diffusivity array
377        (passed as argument) but are (re-) setting those arrays.
378  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
379    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
380      cgrid-lsr and evp solver      cgrid-lsr and evp solver
# Line 41  o pkg/seaice: fix bug in evp solver, whi Line 394  o pkg/seaice: fix bug in evp solver, whi
394      of evp, complete rewrite for lsr case (latter is does not yet work      of evp, complete rewrite for lsr case (latter is does not yet work
395      in all cases)      in all cases)
396  o pkg/kpp: add code to have mixing in shelf ice caverns  o pkg/kpp: add code to have mixing in shelf ice caverns
397      - add myThid to all kpp routines (long overdue)
398    
399  checkpoint59  checkpoint59
400  o pkg/exf:  o pkg/exf:

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