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revision 1.803 by mlosch, Mon Apr 30 22:48:52 2007 UTC revision 1.901 by dfer, Mon Oct 29 20:00:45 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 pkg/dic:
8      - add tons of "_d 0" (--> much better testreports !)
9       and then update outputs of tutorial_global_oce_biogeo
10    o pkg/mom_fluxform:
11      add a special version of momentum advection intended to conserve momentum
12      next to a bathymetry step or a coastline edge. (default = off = #undef)
13    o new read/write pickup version:
14      - for now, only implemented for main (mdsio) pickup file.
15      - write out only what is needed to restart; merge pickup_nh , pickup_ph
16        and main pickup together.
17      - read meta file; read only what is needed to restart; stop if a field
18        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
19        if it make sense (even if the restart is not perfect).
20      - if no meta file, assume that pickup to read corresponds exactly to
21        a pickup that would currently be written.
22      - read pickup written in the old format (until checkpoint59i) if it
23        recognizes an old meta file (no field-list).
24      - add a meta file in exp. which starts from a pickup: 2 cases:
25        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
26         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
27        b) a meta file describing the content of the associated pickup file
28         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
29    o pkg/mdsio & pkg/rw:
30      - new routine to read a meta file ; new set of routine to read
31        Multiple-fields file (with meta file).
32    o added open boundary conditions capability for seaice
33        HSNOW, HSALT, UICE, and VICE
34    
35    checkpoint59i
36    o adjoint:
37      * fix multiDimAdvection adjoint
38        (partial recomputation problem by TAF for fVerT(:,:,kDown)
39        and comlev1 size definition (maxpass vs. max. number of tracers)
40      * verification/global_ocean.90x45x15 adjoint now tests
41        NLFS and multiDimAdvection using DST3 (=30)
42      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
43    o pkg/kpp: add "_d 0" to real constant (if missing);
44      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
45      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
46    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
47      for internal parameters related to restart process (formerly from PARAMS.h)
48      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
49    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
50      as argument. (only atm2d & obcs write_pickup have not yet been updated)
51    o pkg/monitor:
52      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
53      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
54      - account for deep Atmosphere factor and density factor (anelastic)
55    o added open boundary conditions capability for seaice HEFF and AREA
56    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
57      thermodynamics
58      - requires a little reorganization, which affects the testreport results
59        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
60        so that now the conservative form is tested
61      - add a few comments
62    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
63    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
64    o add new diagnostics to seaice: advective, diffusive fluxes (only for
65      multidim-advection, for scheme 2 they are not filled) and transports,
66      thermodynamic growth rates
67    o change units of EmPmR (inside the code) from m/s to kg/m2/s (mass flux) but
68      leave input file unchanged. Affects results @ truncation level (cg2d match)
69      and update output of experiments: lab_sea(6), global_ocean.90x40x15(10),
70      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
71      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
72      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
73    
74    checkpoint59h
75    o pkg/exf:
76      - improve vectorization by moving if-statement out of loops in
77        exf_mapfields, exf_radiation
78      - exf_bulkformulae.F: introduce 2D fields and vectorize code
79    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
80    o testreport:
81      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
82        monitor & update offline_exf_seaice exp. output.
83      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
84    o pkg/seaice:
85      - bug fix in the evp solver: boundary conditions were affected be
86        masking of zMax/zMin (changes results)
87      - minor bug fix in boundary conditions in seaice_calc_strainrates
88        (changes results for no_slip)
89      - seaice_lsr.F: make interpolation of eta dependent on boundaries
90      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
91      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
92        stress formulation and no-slip boundary conditions
93    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
94      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
95    o pkg/seaice: a first HSALT time stepping equation has been checked in
96    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
97      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
98      without requiring DO-IF statements
99    o pkg/thsice:
100      use continuous power-law function for partition of energy between lateral
101      melting/freezing and thinning/thickening ; old code using step function
102      still available with #undef THSICE_FRACEN_POWERLAW
103      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
104    o testreport: change AD testing : check against results/output_adm.txt
105      using same scripts as for forward test.
106    
107    checkpoint59g
108    o adjoint testing: in preparation for changing testreport:
109      - output format: cost and grad written on separated lines
110      - ad output results in directory "results" (instead of "results_ad")
111    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
112    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
113    o pkg/ecco: allow user defined cost function contributions
114    o testreport:
115      Allow to choose (per experiment) the list of tested output variables
116       and the main variable (used to issue a pass/FAIL ) ;
117      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
118      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
119      Also modify printing of summary:
120       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
121       b) echo the list of tested variables in the individual summary.txt of
122          each experiment.
123    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
124      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
125      (but still depend on the tile decompostion of the domain).
126    o pkg/seaice: change a discretization detail to make the B-grid code
127      "more symmetric". This change is likely to remove all "ridges/leads" that
128      where quasi-aligned with the grid in B-grid solutions. It may also be
129      the solution to the stress coupling issues with the B-grid.
130    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
131      remove .cvsignore from input dir. (since testreport no longer run here).
132    o pkg/thsice:
133     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
134     - fix reshaping of sea-ice just after advection:
135       melt all the ice only if ice-volume is too small.
136     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
137       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
138     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
139    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
140      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
141    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
142      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
143      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
144      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
145      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
146      -> update output.txt
147    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
148     this affects truncation error: -> update output.txt of exp:
149      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
150      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
151    
152    checkpoint59f
153    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
154    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
155      a bounded range (in forward mode)
156    o pkg/ecco, ctrl, autodiff and mom_common:
157     internal parameter controls, completements of implementations
158    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
159    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
160      (not seem any difference in testing results).
161    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
162       at face corners.
163    o pkg/generic_advdiff:
164     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
165      loop range indices for computing vertical advection tendency
166      and do the calculation in the interior only (no overlap) ;
167      for now, only implemented for SOM advection (to save CPU time).
168     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
169    o exch2 adjoint
170      First set of changes:
171      - add exch2 hand-written adjoint templates
172      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
173        This will require cleanup in pkg/autodiff/*.F
174        (changed routines currently kept separate in verif. code/)
175      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
176        that used to hide exch2 or cubed-sphere specific code
177        (commented via 'cph-exch2')
178    o pkg/seaice
179      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
180    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
181       output of global_ocean.cs32x15.thsice .
182    
183    checkpoint59e
184    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
185      for B-grid vector (not yet tested) and C-grid vector (<- only used
186      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
187    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
188      (#ifdef ALLOW_SALT_PLUME)
189    o gather_2d/scatter_2d: removed halo regions
190    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
191      scheme and the corresponding test case (under front_relax dir). For now,
192      only available with Skew-flux form and not yet tested in realistic set-up.
193      adjoint: store directives updated, but gradient checks deteriorated,
194      so maybe GM/Redi adjoint is now broken.
195    o seaice adjoint
196      * add AREA, HEFF, HSNOW as control variable
197        (should not change lab_sea results)
198      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
199    o pkg/seaice:
200      * added computation of saltFlux in seaice_growth;
201        For time being, sea ice salinity is assumed constant
202        contribution of snow flooding to freshening of sea ice is neglected.
203        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
204        defaults to 0.0 in order to maintain backward compatibility.
205        Typical values for SEAICE_salinity are 4 to 10 g/kg.
206      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
207      * added SEAICE_availHeatFrac, which specifies fraction of surface level
208        heat content used to melt or grow ice
209      * commented out cap of HICE: it helps keep ice thinner
210      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
211      * applied OBCS T/S mask to HEFFM sea ice mask
212    
213    checkpoint59d
214    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
215     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
216     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
217    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
218     and change default value of parameter "GM_Small_Number";
219     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
220       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
221       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
222    o pkg/ecco: cost function when applying pkg/smooth to controls
223    o pkg/ctrl: add forcingPrecond run time parameter
224    o pkg/seaice:
225     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
226     - fix bug in metric terms of u-equation in LSR solver (implicit part),
227       changes verification/lab_sea
228     - rearrange implicit part of u-equation in LSR solver to make it easier to
229       read, understand, and debug. This causes changes at the truncation level.
230     - fix (serious) bug in the boundary conditions (sign error in the implicit
231       part) of the LSR solver. Changes all LSR results.
232     - fixed problem with HSNOW initialization to avoid thick snow when AREA
233       is initilized with small values - does not change lab_sea results.
234     - added HsnowFile initialization capability
235    o pkg/smooth: addition to model/src and pkg/ctrl so allow
236     initialization of pkg/smooth and application to control vector
237    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
238    o dependencies: pkg/profiles requires pkg/cal
239    o pkg/profiles:
240     - added option ALLOW_PROFILES_GENERICGRID
241         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
242         that interpolation information (grid points and coefficients) is provided
243         within the netcdf input files.
244         -> sample matlab scripts can be found in MITgcm_contrib/gael
245         that allow you to prepare netcdf input files.
246     - also modified: cleaner include statements, cleaner error print statements,
247       cleaner stops when error, and more tests of the netcdf input files consistency.
248    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
249    o pkg/seaice:
250     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
251       requires a new routine: seaice_diagnostics_fill.F
252     - make sure that seaice does not move if not forced (pressure replacement
253       method, Hibler and Ip, 1995), changes results
254     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
255     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
256       It is turned off by default (=-1.), because it changes the results.
257     - make it possible to read AREA from a file, too.
258    
259    checkpoint59c
260    o add S/R and diagnostics for oceanic mixed-layer depth
261    o move GMRedi call after all vertical mixing schemes (including KPP)
262    o pkg/thsice:
263     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
264      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
265    o pkg/obcs:
266     - bug fix for balance code
267    o pkg/seaice:
268      - allow values of SEAICE_elasticParm > 1
269      - add new parameter SEAICE_evpTauRelax as an alternative
270        to SEAICE_elasticParm
271      - make lsr boundary conditions free slip (by default), changes result
272      - add code for no slip boundary conditions for lsr
273      - set minimum of zeta to zero (and not 4e8) (changes results)
274      - add a cap on AREA after advecting AREA if seaice_growth is not called
275    o change calculation of Visbeck K:
276      - no longer depend on tapering scheme; instead, compute slope (limited
277        by GM_maxSlope). this is equivalent to what was comuted before with
278        clipping or linear tappering.
279      - fix vertical averaging (wrong by 1/2 level)
280      - leave the old version (but will not be maintained) within
281        #ifdef OLD_VISBECK_CALC / #endif
282      - update output of exp. ideal_2D_oce
283    o change error catch in calc_r_star to improve vectorization
284    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
285      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
286    o adjoint:
287      Re-organized adjoint checkpointing according to Matt Mazloff
288      (but with modifs/completions/cleanups)
289      Storing is now bundled into large arrays to optimized I/O
290      (and second step in cleanup of the_main_loop)
291    
292    checkpoint59b
293    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
294      - export/import (between ocean & coupler) fields needed for ocean DIC.
295    o pkg/seaice:
296      - get rid of three more exchanges seaice_calc_viscosities (required
297        different loop boundaries in seaice_lsr and seaice_ocean_stress)
298      - bug fix in seaice_ocean_stress (update of lab_sea required)
299      - reduce loop boundaries to necessary minimum also in seaice_evp
300      - go back to the old way of computing deltaC/Z as the adjoint likes that
301        better
302    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
303      passive tracer to an Age Tracer) + update output.txt
304    o pkg/exf:
305      - implement A-grid / C-grid selection for wind-stress input files.
306      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
307      for now, in exf_bulk_largeyeager04.F only :
308      - change implementation for case where windspeed + 2. components wind-stress
309        are read-in. AND use rhoConstFresh to convert evap.
310    o pkg/seaice:
311      - use correct EXCH_UV for wind-forcing (on A-grid).
312      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
313        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
314    o pkg/exf:
315      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
316      EXF_INTERPOLATION:
317      - merge global_with_exf/code version of exf_interp_read.F
318        to the main code ;
319      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
320        reading the file ; Important: This options needs to be defined to recover
321        previous code.
322        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
323      - no longer loose real*8 precision along the way when using exf_iprec=64.
324    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
325      - change discretisation of evp-solver in order to avoid another exchange
326        (changes lab_sea) and clean up a little
327      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
328        help the adjoint (this also changes the results slightly)
329      - add a few "_d 0" where they had been missing in seaice_evp.F
330      - cleaning up: remove unused seaice_calc_rhs.F
331    o pkg/exf: some cleaning-up:
332      - change various "constants" into runtime parameters
333      - cleaned-up Large&Yeager04 routine which should eventually
334        replace exf_bulkformulae.F (changed names of S/R and CPP)
335        and merged various ALLOW_ATM_WIND options
336     only used with thsice pkg (in thsice_get_exf.F):
337      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
338        which are used when useStabilityFct_overIce=TRUE (= the default)
339      - change default values of ice & snow emissivity and scale downward LW
340        by ice & snow emissivity.
341    o pkg/thsice:
342     fix few little problems, in thsice_calc_thickn.F:
343      - growth vertically (and not laterally) if iceFrac == iceMaskMax
344      - melt only laterally if hIce < hThinIce (as the comments say)
345      and in thsice_extend.F:
346      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
347      - start to form ice as soon as the minimum ice-volume is reachable.
348     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
349      and cpl_aim+ocn
350    o pkg/kpp
351     - move computation of surface related input fields to KPP into a new
352       subroutine kpp_forcing_surf.F
353     - remove wrong (within bi,bj loops) EXCH calls.
354     - little cleaning (add argument myThid in last position, cvs header ...)
355     - for now, fix conservation problem by exchanging KPPviscAz (may not
356       be the best fix)
357    o pkg/seaice
358     - check for inconsistent evp parameter/cpp-flag combination
359     - remove leftover errIO flat for obsolete name list error handling
360    o OpenAD
361     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
362    
363    checkpoint59a
364  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
365  o pkg/thsice: rename run-time parameters:  o pkg/thsice: rename run-time parameters:
366     himin       -> hIceMin     himin       -> hIceMin
# Line 21  o in FFIELDS.h: Line 378  o in FFIELDS.h:
378       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
379  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
380  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
381      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
382        are no longer updating the vertical diffusivity array
383        (passed as argument) but are (re-) setting those arrays.
384  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
385    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
386      cgrid-lsr and evp solver      cgrid-lsr and evp solver
# Line 41  o pkg/seaice: fix bug in evp solver, whi Line 400  o pkg/seaice: fix bug in evp solver, whi
400      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
401      in all cases)      in all cases)
402  o pkg/kpp: add code to have mixing in shelf ice caverns  o pkg/kpp: add code to have mixing in shelf ice caverns
403      - add myThid to all kpp routines (long overdue)
404    
405  checkpoint59  checkpoint59
406  o pkg/exf:  o pkg/exf:

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