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revision 1.800 by mlosch, Tue Apr 24 11:24:37 2007 UTC revision 1.873 by jmc, Mon Sep 17 03:47:07 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 adjoint testing: in preparation for changing testreport:
8      - output format: cost and grad written on separated lines
9      - ad output results in directory "results" (instead of "results_ad")
10    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
11    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
12    o pkg/ecco: allow user defined cost function contributions
13    o testreport:
14      Allow to choose (per experiment) the list of tested output variables
15       and the main variable (used to issue a pass/FAIL ) ;
16      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
17      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
18      Also modify printing of summary:
19       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
20       b) echo the list of tested variables in the individual summary.txt of
21          each experiment.
22    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
23      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
24      (but still depend on the tile decompostion of the domain).
25    o pkg/seaice: change a discretization detail to make the B-grid code
26      "more symmetric". This change is likely to remove all "ridges/leads" that
27      where quasi-aligned with the grid in B-grid solutions. It may also be
28      the solution to the stress coupling issues with the B-grid.
29    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
30      remove .cvsignore from input dir. (since testreport no longer run here).
31    o pkg/thsice:
32     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
33     - fix reshaping of sea-ice just after advection:
34       melt all the ice only if ice-volume is too small.
35     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
36       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
37     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
38    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
39      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
40    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
41      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
42      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
43      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
44      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
45      -> update output.txt
46    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
47     this affects truncation error: -> update output.txt of exp:
48      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
49      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
50    
51    checkpoint59f
52    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
53    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
54      a bounded range (in forward mode)
55    o pkg/ecco, ctrl, autodiff and mom_common:
56     internal parameter controls, completements of implementations
57    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
58    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
59      (not seem any difference in testing results).
60    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
61       at face corners.
62    o pkg/generic_advdiff:
63     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
64      loop range indices for computing vertical advection tendency
65      and do the calculation in the interior only (no overlap) ;
66      for now, only implemented for SOM advection (to save CPU time).
67     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
68    o exch2 adjoint
69      First set of changes:
70      - add exch2 hand-written adjoint templates
71      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
72        This will require cleanup in pkg/autodiff/*.F
73        (changed routines currently kept separate in verif. code/)
74      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
75        that used to hide exch2 or cubed-sphere specific code
76        (commented via 'cph-exch2')
77    o pkg/seaice
78      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
79    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
80       output of global_ocean.cs32x15.thsice .
81    
82    checkpoint59e
83    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
84      for B-grid vector (not yet tested) and C-grid vector (<- only used
85      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
86    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
87      (#ifdef ALLOW_SALT_PLUME)
88    o gather_2d/scatter_2d: removed halo regions
89    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
90      scheme and the corresponding test case (under front_relax dir). For now,
91      only available with Skew-flux form and not yet tested in realistic set-up.
92      adjoint: store directives updated, but gradient checks deteriorated,
93      so maybe GM/Redi adjoint is now broken.
94    o seaice adjoint
95      * add AREA, HEFF, HSNOW as control variable
96        (should not change lab_sea results)
97      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
98    o pkg/seaice:
99      * added computation of saltFlux in seaice_growth;
100        For time being, sea ice salinity is assumed constant
101        contribution of snow flooding to freshening of sea ice is neglected.
102        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
103        defaults to 0.0 in order to maintain backward compatibility.
104        Typical values for SEAICE_salinity are 4 to 10 g/kg.
105      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
106      * added SEAICE_availHeatFrac, which specifies fraction of surface level
107        heat content used to melt or grow ice
108      * commented out cap of HICE: it helps keep ice thinner
109      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
110      * applied OBCS T/S mask to HEFFM sea ice mask
111    
112    checkpoint59d
113    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
114     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
115     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
116    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
117     and change default value of parameter "GM_Small_Number";
118     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
119       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
120       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
121    o pkg/ecco: cost function when applying pkg/smooth to controls
122    o pkg/ctrl: add forcingPrecond run time parameter
123    o pkg/seaice:
124     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
125     - fix bug in metric terms of u-equation in LSR solver (implicit part),
126       changes verification/lab_sea
127     - rearrange implicit part of u-equation in LSR solver to make it easier to
128       read, understand, and debug. This causes changes at the truncation level.
129     - fix (serious) bug in the boundary conditions (sign error in the implicit
130       part) of the LSR solver. Changes all LSR results.
131     - fixed problem with HSNOW initialization to avoid thick snow when AREA
132       is initilized with small values - does not change lab_sea results.
133     - added HsnowFile initialization capability
134    o pkg/smooth: addition to model/src and pkg/ctrl so allow
135     initialization of pkg/smooth and application to control vector
136    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
137    o dependencies: pkg/profiles requires pkg/cal
138    o pkg/profiles:
139     - added option ALLOW_PROFILES_GENERICGRID
140         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
141         that interpolation information (grid points and coefficients) is provided
142         within the netcdf input files.
143         -> sample matlab scripts can be found in MITgcm_contrib/gael
144         that allow you to prepare netcdf input files.
145     - also modified: cleaner include statements, cleaner error print statements,
146       cleaner stops when error, and more tests of the netcdf input files consistency.
147    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
148    o pkg/seaice:
149     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
150       requires a new routine: seaice_diagnostics_fill.F
151     - make sure that seaice does not move if not forced (pressure replacement
152       method, Hibler and Ip, 1995), changes results
153     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
154     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
155       It is turned off by default (=-1.), because it changes the results.
156     - make it possible to read AREA from a file, too.
157    
158    checkpoint59c
159    o add S/R and diagnostics for oceanic mixed-layer depth
160    o move GMRedi call after all vertical mixing schemes (including KPP)
161    o pkg/thsice:
162     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
163      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
164    o pkg/obcs:
165     - bug fix for balance code
166    o pkg/seaice:
167      - allow values of SEAICE_elasticParm > 1
168      - add new parameter SEAICE_evpTauRelax as an alternative
169        to SEAICE_elasticParm
170      - make lsr boundary conditions free slip (by default), changes result
171      - add code for no slip boundary conditions for lsr
172      - set minimum of zeta to zero (and not 4e8) (changes results)
173      - add a cap on AREA after advecting AREA if seaice_growth is not called
174    o change calculation of Visbeck K:
175      - no longer depend on tapering scheme; instead, compute slope (limited
176        by GM_maxSlope). this is equivalent to what was comuted before with
177        clipping or linear tappering.
178      - fix vertical averaging (wrong by 1/2 level)
179      - leave the old version (but will not be maintained) within
180        #ifdef OLD_VISBECK_CALC / #endif
181      - update output of exp. ideal_2D_oce
182    o change error catch in calc_r_star to improve vectorization
183    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
184      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
185    o adjoint:
186      Re-organized adjoint checkpointing according to Matt Mazloff
187      (but with modifs/completions/cleanups)
188      Storing is now bundled into large arrays to optimized I/O
189      (and second step in cleanup of the_main_loop)
190    
191    checkpoint59b
192    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
193      - export/import (between ocean & coupler) fields needed for ocean DIC.
194    o pkg/seaice:
195      - get rid of three more exchanges seaice_calc_viscosities (required
196        different loop boundaries in seaice_lsr and seaice_ocean_stress)
197      - bug fix in seaice_ocean_stress (update of lab_sea required)
198      - reduce loop boundaries to necessary minimum also in seaice_evp
199      - go back to the old way of computing deltaC/Z as the adjoint likes that
200        better
201    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
202      passive tracer to an Age Tracer) + update output.txt
203    o pkg/exf:
204      - implement A-grid / C-grid selection for wind-stress input files.
205      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
206      for now, in exf_bulk_largeyeager04.F only :
207      - change implementation for case where windspeed + 2. components wind-stress
208        are read-in. AND use rhoConstFresh to convert evap.
209    o pkg/seaice:
210      - use correct EXCH_UV for wind-forcing (on A-grid).
211      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
212        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
213    o pkg/exf:
214      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
215      EXF_INTERPOLATION:
216      - merge global_with_exf/code version of exf_interp_read.F
217        to the main code ;
218      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
219        reading the file ; Important: This options needs to be defined to recover
220        previous code.
221        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
222      - no longer loose real*8 precision along the way when using exf_iprec=64.
223    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
224      - change discretisation of evp-solver in order to avoid another exchange
225        (changes lab_sea) and clean up a little
226      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
227        help the adjoint (this also changes the results slightly)
228      - add a few "_d 0" where they had been missing in seaice_evp.F
229      - cleaning up: remove unused seaice_calc_rhs.F
230    o pkg/exf: some cleaning-up:
231      - change various "constants" into runtime parameters
232      - cleaned-up Large&Yeager04 routine which should eventually
233        replace exf_bulkformulae.F (changed names of S/R and CPP)
234        and merged various ALLOW_ATM_WIND options
235     only used with thsice pkg (in thsice_get_exf.F):
236      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
237        which are used when useStabilityFct_overIce=TRUE (= the default)
238      - change default values of ice & snow emissivity and scale downward LW
239        by ice & snow emissivity.
240    o pkg/thsice:
241     fix few little problems, in thsice_calc_thickn.F:
242      - growth vertically (and not laterally) if iceFrac == iceMaskMax
243      - melt only laterally if hIce < hThinIce (as the comments say)
244      and in thsice_extend.F:
245      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
246      - start to form ice as soon as the minimum ice-volume is reachable.
247     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
248      and cpl_aim+ocn
249    o pkg/kpp
250     - move computation of surface related input fields to KPP into a new
251       subroutine kpp_forcing_surf.F
252     - remove wrong (within bi,bj loops) EXCH calls.
253     - little cleaning (add argument myThid in last position, cvs header ...)
254     - for now, fix conservation problem by exchanging KPPviscAz (may not
255       be the best fix)
256    o pkg/seaice
257     - check for inconsistent evp parameter/cpp-flag combination
258     - remove leftover errIO flat for obsolete name list error handling
259    o OpenAD
260     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
261    
262    checkpoint59a
263    o pkg/seaice: some parameter clarifications and a little bit of clean up
264    o pkg/thsice: rename run-time parameters:
265       himin       -> hIceMin
266       himin0      -> hThinIce
267       hihig       -> hThickIce
268       i0          -> i0swFrac
269       transCoef   -> bMeltCoef
270       frac_energy -> fracMelting
271      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
272       with default values (for now) that do not change the results.
273      remove old version of thsice vars advection in pkg/seaice.
274    o in FFIELDS.h:
275      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
276      - make pLoad & sIceLoad always available (but still only used if
277         ATMOSPHERIC_LOADING is #define).
278  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
279  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
280      3D diffusivity arrays are used.      3D diffusivity arrays are used.
# Line 26  o pkg/seaice: fix bug in evp solver, whi Line 297  o pkg/seaice: fix bug in evp solver, whi
297      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
298      in all cases)      in all cases)
299  o pkg/kpp: add code to have mixing in shelf ice caverns  o pkg/kpp: add code to have mixing in shelf ice caverns
300      - add myThid to all kpp routines (long overdue)
301    
302  checkpoint59  checkpoint59
303  o pkg/exf:  o pkg/exf:

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