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revision 1.811 by mlosch, Wed May 9 14:32:05 2007 UTC revision 1.877 by dimitri, Tue Sep 18 21:18:12 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/seaice: a first HSALT time stepping equation has been checked in
8    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
9      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
10      without requiring DO-IF statements
11    o pkg/thsice:
12      use continuous power-law function for partition of energy between lateral
13      melting/freezing and thinning/thickening ; old code using step function
14      still available with #undef THSICE_FRACEN_POWERLAW
15      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
16    o testreport: change AD testing : check against results/output_adm.txt
17      using same scripts as for forward test.
18    
19    checkpoint59g
20    o adjoint testing: in preparation for changing testreport:
21      - output format: cost and grad written on separated lines
22      - ad output results in directory "results" (instead of "results_ad")
23    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
24    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
25    o pkg/ecco: allow user defined cost function contributions
26    o testreport:
27      Allow to choose (per experiment) the list of tested output variables
28       and the main variable (used to issue a pass/FAIL ) ;
29      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
30      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
31      Also modify printing of summary:
32       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
33       b) echo the list of tested variables in the individual summary.txt of
34          each experiment.
35    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
36      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
37      (but still depend on the tile decompostion of the domain).
38    o pkg/seaice: change a discretization detail to make the B-grid code
39      "more symmetric". This change is likely to remove all "ridges/leads" that
40      where quasi-aligned with the grid in B-grid solutions. It may also be
41      the solution to the stress coupling issues with the B-grid.
42    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
43      remove .cvsignore from input dir. (since testreport no longer run here).
44    o pkg/thsice:
45     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
46     - fix reshaping of sea-ice just after advection:
47       melt all the ice only if ice-volume is too small.
48     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
49       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
50     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
51    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
52      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
53    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
54      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
55      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
56      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
57      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
58      -> update output.txt
59    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
60     this affects truncation error: -> update output.txt of exp:
61      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
62      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
63    
64    checkpoint59f
65    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
66    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
67      a bounded range (in forward mode)
68    o pkg/ecco, ctrl, autodiff and mom_common:
69     internal parameter controls, completements of implementations
70    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
71    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
72      (not seem any difference in testing results).
73    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
74       at face corners.
75    o pkg/generic_advdiff:
76     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
77      loop range indices for computing vertical advection tendency
78      and do the calculation in the interior only (no overlap) ;
79      for now, only implemented for SOM advection (to save CPU time).
80     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
81    o exch2 adjoint
82      First set of changes:
83      - add exch2 hand-written adjoint templates
84      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
85        This will require cleanup in pkg/autodiff/*.F
86        (changed routines currently kept separate in verif. code/)
87      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
88        that used to hide exch2 or cubed-sphere specific code
89        (commented via 'cph-exch2')
90    o pkg/seaice
91      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
92    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
93       output of global_ocean.cs32x15.thsice .
94    
95    checkpoint59e
96    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
97      for B-grid vector (not yet tested) and C-grid vector (<- only used
98      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
99    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
100      (#ifdef ALLOW_SALT_PLUME)
101    o gather_2d/scatter_2d: removed halo regions
102    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
103      scheme and the corresponding test case (under front_relax dir). For now,
104      only available with Skew-flux form and not yet tested in realistic set-up.
105      adjoint: store directives updated, but gradient checks deteriorated,
106      so maybe GM/Redi adjoint is now broken.
107    o seaice adjoint
108      * add AREA, HEFF, HSNOW as control variable
109        (should not change lab_sea results)
110      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
111    o pkg/seaice:
112      * added computation of saltFlux in seaice_growth;
113        For time being, sea ice salinity is assumed constant
114        contribution of snow flooding to freshening of sea ice is neglected.
115        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
116        defaults to 0.0 in order to maintain backward compatibility.
117        Typical values for SEAICE_salinity are 4 to 10 g/kg.
118      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
119      * added SEAICE_availHeatFrac, which specifies fraction of surface level
120        heat content used to melt or grow ice
121      * commented out cap of HICE: it helps keep ice thinner
122      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
123      * applied OBCS T/S mask to HEFFM sea ice mask
124    
125    checkpoint59d
126    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
127     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
128     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
129    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
130     and change default value of parameter "GM_Small_Number";
131     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
132       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
133       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
134    o pkg/ecco: cost function when applying pkg/smooth to controls
135    o pkg/ctrl: add forcingPrecond run time parameter
136    o pkg/seaice:
137     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
138     - fix bug in metric terms of u-equation in LSR solver (implicit part),
139       changes verification/lab_sea
140     - rearrange implicit part of u-equation in LSR solver to make it easier to
141       read, understand, and debug. This causes changes at the truncation level.
142     - fix (serious) bug in the boundary conditions (sign error in the implicit
143       part) of the LSR solver. Changes all LSR results.
144     - fixed problem with HSNOW initialization to avoid thick snow when AREA
145       is initilized with small values - does not change lab_sea results.
146     - added HsnowFile initialization capability
147    o pkg/smooth: addition to model/src and pkg/ctrl so allow
148     initialization of pkg/smooth and application to control vector
149    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
150    o dependencies: pkg/profiles requires pkg/cal
151    o pkg/profiles:
152     - added option ALLOW_PROFILES_GENERICGRID
153         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
154         that interpolation information (grid points and coefficients) is provided
155         within the netcdf input files.
156         -> sample matlab scripts can be found in MITgcm_contrib/gael
157         that allow you to prepare netcdf input files.
158     - also modified: cleaner include statements, cleaner error print statements,
159       cleaner stops when error, and more tests of the netcdf input files consistency.
160    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
161    o pkg/seaice:
162     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
163       requires a new routine: seaice_diagnostics_fill.F
164     - make sure that seaice does not move if not forced (pressure replacement
165       method, Hibler and Ip, 1995), changes results
166     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
167     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
168       It is turned off by default (=-1.), because it changes the results.
169     - make it possible to read AREA from a file, too.
170    
171    checkpoint59c
172    o add S/R and diagnostics for oceanic mixed-layer depth
173    o move GMRedi call after all vertical mixing schemes (including KPP)
174    o pkg/thsice:
175     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
176      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
177    o pkg/obcs:
178     - bug fix for balance code
179    o pkg/seaice:
180      - allow values of SEAICE_elasticParm > 1
181      - add new parameter SEAICE_evpTauRelax as an alternative
182        to SEAICE_elasticParm
183      - make lsr boundary conditions free slip (by default), changes result
184      - add code for no slip boundary conditions for lsr
185      - set minimum of zeta to zero (and not 4e8) (changes results)
186      - add a cap on AREA after advecting AREA if seaice_growth is not called
187    o change calculation of Visbeck K:
188      - no longer depend on tapering scheme; instead, compute slope (limited
189        by GM_maxSlope). this is equivalent to what was comuted before with
190        clipping or linear tappering.
191      - fix vertical averaging (wrong by 1/2 level)
192      - leave the old version (but will not be maintained) within
193        #ifdef OLD_VISBECK_CALC / #endif
194      - update output of exp. ideal_2D_oce
195    o change error catch in calc_r_star to improve vectorization
196    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
197      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
198    o adjoint:
199      Re-organized adjoint checkpointing according to Matt Mazloff
200      (but with modifs/completions/cleanups)
201      Storing is now bundled into large arrays to optimized I/O
202      (and second step in cleanup of the_main_loop)
203    
204    checkpoint59b
205    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
206      - export/import (between ocean & coupler) fields needed for ocean DIC.
207    o pkg/seaice:
208      - get rid of three more exchanges seaice_calc_viscosities (required
209        different loop boundaries in seaice_lsr and seaice_ocean_stress)
210      - bug fix in seaice_ocean_stress (update of lab_sea required)
211      - reduce loop boundaries to necessary minimum also in seaice_evp
212      - go back to the old way of computing deltaC/Z as the adjoint likes that
213        better
214    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
215      passive tracer to an Age Tracer) + update output.txt
216    o pkg/exf:
217      - implement A-grid / C-grid selection for wind-stress input files.
218      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
219      for now, in exf_bulk_largeyeager04.F only :
220      - change implementation for case where windspeed + 2. components wind-stress
221        are read-in. AND use rhoConstFresh to convert evap.
222    o pkg/seaice:
223      - use correct EXCH_UV for wind-forcing (on A-grid).
224      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
225        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
226    o pkg/exf:
227      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
228      EXF_INTERPOLATION:
229      - merge global_with_exf/code version of exf_interp_read.F
230        to the main code ;
231      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
232        reading the file ; Important: This options needs to be defined to recover
233        previous code.
234        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
235      - no longer loose real*8 precision along the way when using exf_iprec=64.
236  o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)  o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
237      - change discretisation of evp-solver in order to avoid another exchange
238        (changes lab_sea) and clean up a little
239      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
240        help the adjoint (this also changes the results slightly)
241      - add a few "_d 0" where they had been missing in seaice_evp.F
242      - cleaning up: remove unused seaice_calc_rhs.F
243  o pkg/exf: some cleaning-up:  o pkg/exf: some cleaning-up:
244    - change various "constants" into runtime parameters    - change various "constants" into runtime parameters
245    - cleaned-up Large&Yeager04 routine which should eventually    - cleaned-up Large&Yeager04 routine which should eventually
# Line 18  o pkg/exf: some cleaning-up: Line 253  o pkg/exf: some cleaning-up:
253  o pkg/thsice:  o pkg/thsice:
254   fix few little problems, in thsice_calc_thickn.F:   fix few little problems, in thsice_calc_thickn.F:
255    - growth vertically (and not laterally) if iceFrac == iceMaskMax    - growth vertically (and not laterally) if iceFrac == iceMaskMax
256    - melt laterally only if hIce < hThinIce (as the comments say)    - melt only laterally if hIce < hThinIce (as the comments say)
257    and in thsice_extend.F:    and in thsice_extend.F:
258    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
259    - start to form ice as soon as the minimum ice-volume is reachable.    - start to form ice as soon as the minimum ice-volume is reachable.
# Line 34  o pkg/kpp Line 269  o pkg/kpp
269  o pkg/seaice  o pkg/seaice
270   - check for inconsistent evp parameter/cpp-flag combination   - check for inconsistent evp parameter/cpp-flag combination
271   - remove leftover errIO flat for obsolete name list error handling   - remove leftover errIO flat for obsolete name list error handling
272    o OpenAD
273     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
274    
275  checkpoint59a  checkpoint59a
276  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

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