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revision 1.800 by mlosch, Tue Apr 24 11:24:37 2007 UTC revision 1.879 by mlosch, Wed Sep 19 09:41:50 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:
8      - bug fix in the evp solver: boundary conditions were affected be
9        masking of zMax/zMin (changes results)
10      - minor bug fix in boundary conditions in seaice_calc_strainrates
11        (changes results for no_slip)
12      - seaice_lsr.F: make interpolation of eta dependent on boundaries
13      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
14      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
15        stress formulation and no-slip boundary conditions
16    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
17      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
18    o pkg/seaice: a first HSALT time stepping equation has been checked in
19    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
20      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
21      without requiring DO-IF statements
22    o pkg/thsice:
23      use continuous power-law function for partition of energy between lateral
24      melting/freezing and thinning/thickening ; old code using step function
25      still available with #undef THSICE_FRACEN_POWERLAW
26      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
27    o testreport: change AD testing : check against results/output_adm.txt
28      using same scripts as for forward test.
29    
30    checkpoint59g
31    o adjoint testing: in preparation for changing testreport:
32      - output format: cost and grad written on separated lines
33      - ad output results in directory "results" (instead of "results_ad")
34    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
35    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
36    o pkg/ecco: allow user defined cost function contributions
37    o testreport:
38      Allow to choose (per experiment) the list of tested output variables
39       and the main variable (used to issue a pass/FAIL ) ;
40      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
41      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
42      Also modify printing of summary:
43       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
44       b) echo the list of tested variables in the individual summary.txt of
45          each experiment.
46    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
47      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
48      (but still depend on the tile decompostion of the domain).
49    o pkg/seaice: change a discretization detail to make the B-grid code
50      "more symmetric". This change is likely to remove all "ridges/leads" that
51      where quasi-aligned with the grid in B-grid solutions. It may also be
52      the solution to the stress coupling issues with the B-grid.
53    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
54      remove .cvsignore from input dir. (since testreport no longer run here).
55    o pkg/thsice:
56     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
57     - fix reshaping of sea-ice just after advection:
58       melt all the ice only if ice-volume is too small.
59     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
60       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
61     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
62    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
63      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
64    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
65      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
66      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
67      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
68      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
69      -> update output.txt
70    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
71     this affects truncation error: -> update output.txt of exp:
72      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
73      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
74    
75    checkpoint59f
76    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
77    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
78      a bounded range (in forward mode)
79    o pkg/ecco, ctrl, autodiff and mom_common:
80     internal parameter controls, completements of implementations
81    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
82    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
83      (not seem any difference in testing results).
84    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
85       at face corners.
86    o pkg/generic_advdiff:
87     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
88      loop range indices for computing vertical advection tendency
89      and do the calculation in the interior only (no overlap) ;
90      for now, only implemented for SOM advection (to save CPU time).
91     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
92    o exch2 adjoint
93      First set of changes:
94      - add exch2 hand-written adjoint templates
95      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
96        This will require cleanup in pkg/autodiff/*.F
97        (changed routines currently kept separate in verif. code/)
98      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
99        that used to hide exch2 or cubed-sphere specific code
100        (commented via 'cph-exch2')
101    o pkg/seaice
102      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
103    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
104       output of global_ocean.cs32x15.thsice .
105    
106    checkpoint59e
107    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
108      for B-grid vector (not yet tested) and C-grid vector (<- only used
109      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
110    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
111      (#ifdef ALLOW_SALT_PLUME)
112    o gather_2d/scatter_2d: removed halo regions
113    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
114      scheme and the corresponding test case (under front_relax dir). For now,
115      only available with Skew-flux form and not yet tested in realistic set-up.
116      adjoint: store directives updated, but gradient checks deteriorated,
117      so maybe GM/Redi adjoint is now broken.
118    o seaice adjoint
119      * add AREA, HEFF, HSNOW as control variable
120        (should not change lab_sea results)
121      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
122    o pkg/seaice:
123      * added computation of saltFlux in seaice_growth;
124        For time being, sea ice salinity is assumed constant
125        contribution of snow flooding to freshening of sea ice is neglected.
126        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
127        defaults to 0.0 in order to maintain backward compatibility.
128        Typical values for SEAICE_salinity are 4 to 10 g/kg.
129      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
130      * added SEAICE_availHeatFrac, which specifies fraction of surface level
131        heat content used to melt or grow ice
132      * commented out cap of HICE: it helps keep ice thinner
133      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
134      * applied OBCS T/S mask to HEFFM sea ice mask
135    
136    checkpoint59d
137    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
138     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
139     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
140    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
141     and change default value of parameter "GM_Small_Number";
142     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
143       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
144       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
145    o pkg/ecco: cost function when applying pkg/smooth to controls
146    o pkg/ctrl: add forcingPrecond run time parameter
147    o pkg/seaice:
148     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
149     - fix bug in metric terms of u-equation in LSR solver (implicit part),
150       changes verification/lab_sea
151     - rearrange implicit part of u-equation in LSR solver to make it easier to
152       read, understand, and debug. This causes changes at the truncation level.
153     - fix (serious) bug in the boundary conditions (sign error in the implicit
154       part) of the LSR solver. Changes all LSR results.
155     - fixed problem with HSNOW initialization to avoid thick snow when AREA
156       is initilized with small values - does not change lab_sea results.
157     - added HsnowFile initialization capability
158    o pkg/smooth: addition to model/src and pkg/ctrl so allow
159     initialization of pkg/smooth and application to control vector
160    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
161    o dependencies: pkg/profiles requires pkg/cal
162    o pkg/profiles:
163     - added option ALLOW_PROFILES_GENERICGRID
164         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
165         that interpolation information (grid points and coefficients) is provided
166         within the netcdf input files.
167         -> sample matlab scripts can be found in MITgcm_contrib/gael
168         that allow you to prepare netcdf input files.
169     - also modified: cleaner include statements, cleaner error print statements,
170       cleaner stops when error, and more tests of the netcdf input files consistency.
171    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
172    o pkg/seaice:
173     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
174       requires a new routine: seaice_diagnostics_fill.F
175     - make sure that seaice does not move if not forced (pressure replacement
176       method, Hibler and Ip, 1995), changes results
177     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
178     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
179       It is turned off by default (=-1.), because it changes the results.
180     - make it possible to read AREA from a file, too.
181    
182    checkpoint59c
183    o add S/R and diagnostics for oceanic mixed-layer depth
184    o move GMRedi call after all vertical mixing schemes (including KPP)
185    o pkg/thsice:
186     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
187      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
188    o pkg/obcs:
189     - bug fix for balance code
190    o pkg/seaice:
191      - allow values of SEAICE_elasticParm > 1
192      - add new parameter SEAICE_evpTauRelax as an alternative
193        to SEAICE_elasticParm
194      - make lsr boundary conditions free slip (by default), changes result
195      - add code for no slip boundary conditions for lsr
196      - set minimum of zeta to zero (and not 4e8) (changes results)
197      - add a cap on AREA after advecting AREA if seaice_growth is not called
198    o change calculation of Visbeck K:
199      - no longer depend on tapering scheme; instead, compute slope (limited
200        by GM_maxSlope). this is equivalent to what was comuted before with
201        clipping or linear tappering.
202      - fix vertical averaging (wrong by 1/2 level)
203      - leave the old version (but will not be maintained) within
204        #ifdef OLD_VISBECK_CALC / #endif
205      - update output of exp. ideal_2D_oce
206    o change error catch in calc_r_star to improve vectorization
207    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
208      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
209    o adjoint:
210      Re-organized adjoint checkpointing according to Matt Mazloff
211      (but with modifs/completions/cleanups)
212      Storing is now bundled into large arrays to optimized I/O
213      (and second step in cleanup of the_main_loop)
214    
215    checkpoint59b
216    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
217      - export/import (between ocean & coupler) fields needed for ocean DIC.
218    o pkg/seaice:
219      - get rid of three more exchanges seaice_calc_viscosities (required
220        different loop boundaries in seaice_lsr and seaice_ocean_stress)
221      - bug fix in seaice_ocean_stress (update of lab_sea required)
222      - reduce loop boundaries to necessary minimum also in seaice_evp
223      - go back to the old way of computing deltaC/Z as the adjoint likes that
224        better
225    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
226      passive tracer to an Age Tracer) + update output.txt
227    o pkg/exf:
228      - implement A-grid / C-grid selection for wind-stress input files.
229      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
230      for now, in exf_bulk_largeyeager04.F only :
231      - change implementation for case where windspeed + 2. components wind-stress
232        are read-in. AND use rhoConstFresh to convert evap.
233    o pkg/seaice:
234      - use correct EXCH_UV for wind-forcing (on A-grid).
235      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
236        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
237    o pkg/exf:
238      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
239      EXF_INTERPOLATION:
240      - merge global_with_exf/code version of exf_interp_read.F
241        to the main code ;
242      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
243        reading the file ; Important: This options needs to be defined to recover
244        previous code.
245        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
246      - no longer loose real*8 precision along the way when using exf_iprec=64.
247    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
248      - change discretisation of evp-solver in order to avoid another exchange
249        (changes lab_sea) and clean up a little
250      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
251        help the adjoint (this also changes the results slightly)
252      - add a few "_d 0" where they had been missing in seaice_evp.F
253      - cleaning up: remove unused seaice_calc_rhs.F
254    o pkg/exf: some cleaning-up:
255      - change various "constants" into runtime parameters
256      - cleaned-up Large&Yeager04 routine which should eventually
257        replace exf_bulkformulae.F (changed names of S/R and CPP)
258        and merged various ALLOW_ATM_WIND options
259     only used with thsice pkg (in thsice_get_exf.F):
260      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
261        which are used when useStabilityFct_overIce=TRUE (= the default)
262      - change default values of ice & snow emissivity and scale downward LW
263        by ice & snow emissivity.
264    o pkg/thsice:
265     fix few little problems, in thsice_calc_thickn.F:
266      - growth vertically (and not laterally) if iceFrac == iceMaskMax
267      - melt only laterally if hIce < hThinIce (as the comments say)
268      and in thsice_extend.F:
269      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
270      - start to form ice as soon as the minimum ice-volume is reachable.
271     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
272      and cpl_aim+ocn
273    o pkg/kpp
274     - move computation of surface related input fields to KPP into a new
275       subroutine kpp_forcing_surf.F
276     - remove wrong (within bi,bj loops) EXCH calls.
277     - little cleaning (add argument myThid in last position, cvs header ...)
278     - for now, fix conservation problem by exchanging KPPviscAz (may not
279       be the best fix)
280    o pkg/seaice
281     - check for inconsistent evp parameter/cpp-flag combination
282     - remove leftover errIO flat for obsolete name list error handling
283    o OpenAD
284     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
285    
286    checkpoint59a
287    o pkg/seaice: some parameter clarifications and a little bit of clean up
288    o pkg/thsice: rename run-time parameters:
289       himin       -> hIceMin
290       himin0      -> hThinIce
291       hihig       -> hThickIce
292       i0          -> i0swFrac
293       transCoef   -> bMeltCoef
294       frac_energy -> fracMelting
295      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
296       with default values (for now) that do not change the results.
297      remove old version of thsice vars advection in pkg/seaice.
298    o in FFIELDS.h:
299      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
300      - make pLoad & sIceLoad always available (but still only used if
301         ATMOSPHERIC_LOADING is #define).
302  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
303  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
304      3D diffusivity arrays are used.      3D diffusivity arrays are used.
# Line 26  o pkg/seaice: fix bug in evp solver, whi Line 321  o pkg/seaice: fix bug in evp solver, whi
321      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
322      in all cases)      in all cases)
323  o pkg/kpp: add code to have mixing in shelf ice caverns  o pkg/kpp: add code to have mixing in shelf ice caverns
324      - add myThid to all kpp routines (long overdue)
325    
326  checkpoint59  checkpoint59
327  o pkg/exf:  o pkg/exf:

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