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revision 1.802 by jmc, Mon Apr 30 16:03:40 2007 UTC revision 1.903 by jmc, Mon Nov 5 16:02:31 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 cleaning-up:
8      - fix CPP instruction syntax in pkg/obcs
9      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
10        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
11      - fix some threads issue in IO parts.
12    o pkg/dic:
13      - add tons of "_d 0" (--> much better testreports !)
14       and then update outputs of tutorial_global_oce_biogeo
15    o pkg/mom_fluxform:
16      add a special version of momentum advection intended to conserve momentum
17      next to a bathymetry step or a coastline edge. (default = off = #undef)
18    o new read/write pickup version:
19      - for now, only implemented for main (mdsio) pickup file.
20      - write out only what is needed to restart; merge pickup_nh , pickup_ph
21        and main pickup together.
22      - read meta file; read only what is needed to restart; stop if a field
23        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
24        if it make sense (even if the restart is not perfect).
25      - if no meta file, assume that pickup to read corresponds exactly to
26        a pickup that would currently be written.
27      - read pickup written in the old format (until checkpoint59i) if it
28        recognizes an old meta file (no field-list).
29      - add a meta file in exp. which starts from a pickup: 2 cases:
30        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
31         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
32        b) a meta file describing the content of the associated pickup file
33         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
34    o pkg/mdsio & pkg/rw:
35      - new routine to read a meta file ; new set of routine to read
36        Multiple-fields file (with meta file).
37    o added open boundary conditions capability for seaice
38        HSNOW, HSALT, UICE, and VICE
39    
40    checkpoint59i
41    o adjoint:
42      * fix multiDimAdvection adjoint
43        (partial recomputation problem by TAF for fVerT(:,:,kDown)
44        and comlev1 size definition (maxpass vs. max. number of tracers)
45      * verification/global_ocean.90x45x15 adjoint now tests
46        NLFS and multiDimAdvection using DST3 (=30)
47      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
48    o pkg/kpp: add "_d 0" to real constant (if missing);
49      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
50      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
51    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
52      for internal parameters related to restart process (formerly from PARAMS.h)
53      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
54    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
55      as argument. (only atm2d & obcs write_pickup have not yet been updated)
56    o pkg/monitor:
57      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
58      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
59      - account for deep Atmosphere factor and density factor (anelastic)
60    o added open boundary conditions capability for seaice HEFF and AREA
61    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
62      thermodynamics
63      - requires a little reorganization, which affects the testreport results
64        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
65        so that now the conservative form is tested
66      - add a few comments
67    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
68    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
69    o add new diagnostics to seaice: advective, diffusive fluxes (only for
70      multidim-advection, for scheme 2 they are not filled) and transports,
71      thermodynamic growth rates
72    o change units of EmPmR (inside the code, + within coupling interface)
73      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
74      Affects results @ truncation level (cg2d match) and update output of
75       experiments: lab_sea(6), global_ocean.90x40x15(10),
76      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
77      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
78      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
79      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
80    
81    checkpoint59h
82    o pkg/exf:
83      - improve vectorization by moving if-statement out of loops in
84        exf_mapfields, exf_radiation
85      - exf_bulkformulae.F: introduce 2D fields and vectorize code
86    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
87    o testreport:
88      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
89        monitor & update offline_exf_seaice exp. output.
90      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
91    o pkg/seaice:
92      - bug fix in the evp solver: boundary conditions were affected be
93        masking of zMax/zMin (changes results)
94      - minor bug fix in boundary conditions in seaice_calc_strainrates
95        (changes results for no_slip)
96      - seaice_lsr.F: make interpolation of eta dependent on boundaries
97      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
98      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
99        stress formulation and no-slip boundary conditions
100    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
101      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
102    o pkg/seaice: a first HSALT time stepping equation has been checked in
103    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
104      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
105      without requiring DO-IF statements
106    o pkg/thsice:
107      use continuous power-law function for partition of energy between lateral
108      melting/freezing and thinning/thickening ; old code using step function
109      still available with #undef THSICE_FRACEN_POWERLAW
110      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
111    o testreport: change AD testing : check against results/output_adm.txt
112      using same scripts as for forward test.
113    
114    checkpoint59g
115    o adjoint testing: in preparation for changing testreport:
116      - output format: cost and grad written on separated lines
117      - ad output results in directory "results" (instead of "results_ad")
118    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
119    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
120    o pkg/ecco: allow user defined cost function contributions
121    o testreport:
122      Allow to choose (per experiment) the list of tested output variables
123       and the main variable (used to issue a pass/FAIL ) ;
124      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
125      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
126      Also modify printing of summary:
127       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
128       b) echo the list of tested variables in the individual summary.txt of
129          each experiment.
130    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
131      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
132      (but still depend on the tile decompostion of the domain).
133    o pkg/seaice: change a discretization detail to make the B-grid code
134      "more symmetric". This change is likely to remove all "ridges/leads" that
135      where quasi-aligned with the grid in B-grid solutions. It may also be
136      the solution to the stress coupling issues with the B-grid.
137    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
138      remove .cvsignore from input dir. (since testreport no longer run here).
139    o pkg/thsice:
140     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
141     - fix reshaping of sea-ice just after advection:
142       melt all the ice only if ice-volume is too small.
143     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
144       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
145     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
146    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
147      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
148    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
149      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
150      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
151      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
152      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
153      -> update output.txt
154    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
155     this affects truncation error: -> update output.txt of exp:
156      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
157      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
158    
159    checkpoint59f
160    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
161    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
162      a bounded range (in forward mode)
163    o pkg/ecco, ctrl, autodiff and mom_common:
164     internal parameter controls, completements of implementations
165    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
166    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
167      (not seem any difference in testing results).
168    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
169       at face corners.
170    o pkg/generic_advdiff:
171     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
172      loop range indices for computing vertical advection tendency
173      and do the calculation in the interior only (no overlap) ;
174      for now, only implemented for SOM advection (to save CPU time).
175     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
176    o exch2 adjoint
177      First set of changes:
178      - add exch2 hand-written adjoint templates
179      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
180        This will require cleanup in pkg/autodiff/*.F
181        (changed routines currently kept separate in verif. code/)
182      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
183        that used to hide exch2 or cubed-sphere specific code
184        (commented via 'cph-exch2')
185    o pkg/seaice
186      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
187    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
188       output of global_ocean.cs32x15.thsice .
189    
190    checkpoint59e
191    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
192      for B-grid vector (not yet tested) and C-grid vector (<- only used
193      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
194    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
195      (#ifdef ALLOW_SALT_PLUME)
196    o gather_2d/scatter_2d: removed halo regions
197    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
198      scheme and the corresponding test case (under front_relax dir). For now,
199      only available with Skew-flux form and not yet tested in realistic set-up.
200      adjoint: store directives updated, but gradient checks deteriorated,
201      so maybe GM/Redi adjoint is now broken.
202    o seaice adjoint
203      * add AREA, HEFF, HSNOW as control variable
204        (should not change lab_sea results)
205      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
206    o pkg/seaice:
207      * added computation of saltFlux in seaice_growth;
208        For time being, sea ice salinity is assumed constant
209        contribution of snow flooding to freshening of sea ice is neglected.
210        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
211        defaults to 0.0 in order to maintain backward compatibility.
212        Typical values for SEAICE_salinity are 4 to 10 g/kg.
213      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
214      * added SEAICE_availHeatFrac, which specifies fraction of surface level
215        heat content used to melt or grow ice
216      * commented out cap of HICE: it helps keep ice thinner
217      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
218      * applied OBCS T/S mask to HEFFM sea ice mask
219    
220    checkpoint59d
221    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
222     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
223     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
224    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
225     and change default value of parameter "GM_Small_Number";
226     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
227       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
228       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
229    o pkg/ecco: cost function when applying pkg/smooth to controls
230    o pkg/ctrl: add forcingPrecond run time parameter
231    o pkg/seaice:
232     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
233     - fix bug in metric terms of u-equation in LSR solver (implicit part),
234       changes verification/lab_sea
235     - rearrange implicit part of u-equation in LSR solver to make it easier to
236       read, understand, and debug. This causes changes at the truncation level.
237     - fix (serious) bug in the boundary conditions (sign error in the implicit
238       part) of the LSR solver. Changes all LSR results.
239     - fixed problem with HSNOW initialization to avoid thick snow when AREA
240       is initilized with small values - does not change lab_sea results.
241     - added HsnowFile initialization capability
242    o pkg/smooth: addition to model/src and pkg/ctrl so allow
243     initialization of pkg/smooth and application to control vector
244    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
245    o dependencies: pkg/profiles requires pkg/cal
246    o pkg/profiles:
247     - added option ALLOW_PROFILES_GENERICGRID
248         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
249         that interpolation information (grid points and coefficients) is provided
250         within the netcdf input files.
251         -> sample matlab scripts can be found in MITgcm_contrib/gael
252         that allow you to prepare netcdf input files.
253     - also modified: cleaner include statements, cleaner error print statements,
254       cleaner stops when error, and more tests of the netcdf input files consistency.
255    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
256    o pkg/seaice:
257     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
258       requires a new routine: seaice_diagnostics_fill.F
259     - make sure that seaice does not move if not forced (pressure replacement
260       method, Hibler and Ip, 1995), changes results
261     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
262     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
263       It is turned off by default (=-1.), because it changes the results.
264     - make it possible to read AREA from a file, too.
265    
266    checkpoint59c
267    o add S/R and diagnostics for oceanic mixed-layer depth
268    o move GMRedi call after all vertical mixing schemes (including KPP)
269    o pkg/thsice:
270     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
271      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
272    o pkg/obcs:
273     - bug fix for balance code
274    o pkg/seaice:
275      - allow values of SEAICE_elasticParm > 1
276      - add new parameter SEAICE_evpTauRelax as an alternative
277        to SEAICE_elasticParm
278      - make lsr boundary conditions free slip (by default), changes result
279      - add code for no slip boundary conditions for lsr
280      - set minimum of zeta to zero (and not 4e8) (changes results)
281      - add a cap on AREA after advecting AREA if seaice_growth is not called
282    o change calculation of Visbeck K:
283      - no longer depend on tapering scheme; instead, compute slope (limited
284        by GM_maxSlope). this is equivalent to what was comuted before with
285        clipping or linear tappering.
286      - fix vertical averaging (wrong by 1/2 level)
287      - leave the old version (but will not be maintained) within
288        #ifdef OLD_VISBECK_CALC / #endif
289      - update output of exp. ideal_2D_oce
290    o change error catch in calc_r_star to improve vectorization
291    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
292      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
293    o adjoint:
294      Re-organized adjoint checkpointing according to Matt Mazloff
295      (but with modifs/completions/cleanups)
296      Storing is now bundled into large arrays to optimized I/O
297      (and second step in cleanup of the_main_loop)
298    
299    checkpoint59b
300    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
301      - export/import (between ocean & coupler) fields needed for ocean DIC.
302    o pkg/seaice:
303      - get rid of three more exchanges seaice_calc_viscosities (required
304        different loop boundaries in seaice_lsr and seaice_ocean_stress)
305      - bug fix in seaice_ocean_stress (update of lab_sea required)
306      - reduce loop boundaries to necessary minimum also in seaice_evp
307      - go back to the old way of computing deltaC/Z as the adjoint likes that
308        better
309    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
310      passive tracer to an Age Tracer) + update output.txt
311    o pkg/exf:
312      - implement A-grid / C-grid selection for wind-stress input files.
313      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
314      for now, in exf_bulk_largeyeager04.F only :
315      - change implementation for case where windspeed + 2. components wind-stress
316        are read-in. AND use rhoConstFresh to convert evap.
317    o pkg/seaice:
318      - use correct EXCH_UV for wind-forcing (on A-grid).
319      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
320        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
321    o pkg/exf:
322      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
323      EXF_INTERPOLATION:
324      - merge global_with_exf/code version of exf_interp_read.F
325        to the main code ;
326      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
327        reading the file ; Important: This options needs to be defined to recover
328        previous code.
329        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
330      - no longer loose real*8 precision along the way when using exf_iprec=64.
331    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
332      - change discretisation of evp-solver in order to avoid another exchange
333        (changes lab_sea) and clean up a little
334      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
335        help the adjoint (this also changes the results slightly)
336      - add a few "_d 0" where they had been missing in seaice_evp.F
337      - cleaning up: remove unused seaice_calc_rhs.F
338    o pkg/exf: some cleaning-up:
339      - change various "constants" into runtime parameters
340      - cleaned-up Large&Yeager04 routine which should eventually
341        replace exf_bulkformulae.F (changed names of S/R and CPP)
342        and merged various ALLOW_ATM_WIND options
343     only used with thsice pkg (in thsice_get_exf.F):
344      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
345        which are used when useStabilityFct_overIce=TRUE (= the default)
346      - change default values of ice & snow emissivity and scale downward LW
347        by ice & snow emissivity.
348    o pkg/thsice:
349     fix few little problems, in thsice_calc_thickn.F:
350      - growth vertically (and not laterally) if iceFrac == iceMaskMax
351      - melt only laterally if hIce < hThinIce (as the comments say)
352      and in thsice_extend.F:
353      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
354      - start to form ice as soon as the minimum ice-volume is reachable.
355     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
356      and cpl_aim+ocn
357    o pkg/kpp
358     - move computation of surface related input fields to KPP into a new
359       subroutine kpp_forcing_surf.F
360     - remove wrong (within bi,bj loops) EXCH calls.
361     - little cleaning (add argument myThid in last position, cvs header ...)
362     - for now, fix conservation problem by exchanging KPPviscAz (may not
363       be the best fix)
364    o pkg/seaice
365     - check for inconsistent evp parameter/cpp-flag combination
366     - remove leftover errIO flat for obsolete name list error handling
367    o OpenAD
368     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
369    
370    checkpoint59a
371    o pkg/seaice: some parameter clarifications and a little bit of clean up
372  o pkg/thsice: rename run-time parameters:  o pkg/thsice: rename run-time parameters:
373     himin       -> hIceMin     himin       -> hIceMin
374     himin0      -> hThinIce     himin0      -> hThinIce
# Line 20  o in FFIELDS.h: Line 385  o in FFIELDS.h:
385       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
386  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
387  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
388      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
389        are no longer updating the vertical diffusivity array
390        (passed as argument) but are (re-) setting those arrays.
391  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
392    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
393      cgrid-lsr and evp solver      cgrid-lsr and evp solver
# Line 40  o pkg/seaice: fix bug in evp solver, whi Line 407  o pkg/seaice: fix bug in evp solver, whi
407      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
408      in all cases)      in all cases)
409  o pkg/kpp: add code to have mixing in shelf ice caverns  o pkg/kpp: add code to have mixing in shelf ice caverns
410      - add myThid to all kpp routines (long overdue)
411    
412  checkpoint59  checkpoint59
413  o pkg/exf:  o pkg/exf:

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