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revision 1.803 by mlosch, Mon Apr 30 22:48:52 2007 UTC revision 1.862 by jmc, Tue Aug 21 14:39:43 2007 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint59f
8    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
9    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
10      a bounded range (in forward mode)
11    o pkg/ecco, ctrl, autodiff and mom_common:
12     internal parameter controls, completements of implementations
13    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
14    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
15      (not seem any difference in testing results).
16    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
17       at face corners.
18    o pkg/generic_advdiff:
19     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
20      loop range indices for computing vertical advection tendency
21      and do the calculation in the interior only (no overlap) ;
22      for now, only implemented for SOM advection (to save CPU time).
23     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
24    o exch2 adjoint
25      First set of changes:
26      - add exch2 hand-written adjoint templates
27      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
28        This will require cleanup in pkg/autodiff/*.F
29        (changed routines currently kept separate in verif. code/)
30      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
31        that used to hide exch2 or cubed-sphere specific code
32        (commented via 'cph-exch2')
33    o pkg/seaice
34      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
35    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
36       output of global_ocean.cs32x15.thsice .
37    
38    checkpoint59e
39    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
40      for B-grid vector (not yet tested) and C-grid vector (<- only used
41      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
42    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
43      (#ifdef ALLOW_SALT_PLUME)
44    o gather_2d/scatter_2d: removed halo regions
45    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
46      scheme and the corresponding test case (under front_relax dir). For now,
47      only available with Skew-flux form and not yet tested in realistic set-up.
48      adjoint: store directives updated, but gradient checks deteriorated,
49      so maybe GM/Redi adjoint is now broken.
50    o seaice adjoint
51      * add AREA, HEFF, HSNOW as control variable
52        (should not change lab_sea results)
53      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
54    o pkg/seaice:
55      * added computation of saltFlux in seaice_growth;
56        For time being, sea ice salinity is assumed constant
57        contribution of snow flooding to freshening of sea ice is neglected.
58        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
59        defaults to 0.0 in order to maintain backward compatibility.
60        Typical values for SEAICE_salinity are 4 to 10 g/kg.
61      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
62      * added SEAICE_availHeatFrac, which specifies fraction of surface level
63        heat content used to melt or grow ice
64      * commented out cap of HICE: it helps keep ice thinner
65      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
66      * applied OBCS T/S mask to HEFFM sea ice mask
67    
68    checkpoint59d
69    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
70     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
71     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
72    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
73     and change default value of parameter "GM_Small_Number";
74     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
75       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
76       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
77    o pkg/ecco: cost function when applying pkg/smooth to controls
78    o pkg/ctrl: add forcingPrecond run time parameter
79    o pkg/seaice:
80     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
81     - fix bug in metric terms of u-equation in LSR solver (implicit part),
82       changes verification/lab_sea
83     - rearrange implicit part of u-equation in LSR solver to make it easier to
84       read, understand, and debug. This causes changes at the truncation level.
85     - fix (serious) bug in the boundary conditions (sign error in the implicit
86       part) of the LSR solver. Changes all LSR results.
87     - fixed problem with HSNOW initialization to avoid thick snow when AREA
88       is initilized with small values - does not change lab_sea results.
89     - added HsnowFile initialization capability
90    o pkg/smooth: addition to model/src and pkg/ctrl so allow
91     initialization of pkg/smooth and application to control vector
92    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
93    o dependencies: pkg/profiles requires pkg/cal
94    o pkg/profiles:
95     - added option ALLOW_PROFILES_GENERICGRID
96         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
97         that interpolation information (grid points and coefficients) is provided
98         within the netcdf input files.
99         -> sample matlab scripts can be found in MITgcm_contrib/gael
100         that allow you to prepare netcdf input files.
101     - also modified: cleaner include statements, cleaner error print statements,
102       cleaner stops when error, and more tests of the netcdf input files consistency.
103    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
104    o pkg/seaice:
105     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
106       requires a new routine: seaice_diagnostics_fill.F
107     - make sure that seaice does not move if not forced (pressure replacement
108       method, Hibler and Ip, 1995), changes results
109     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
110     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
111       It is turned off by default (=-1.), because it changes the results.
112     - make it possible to read AREA from a file, too.
113    
114    checkpoint59c
115    o add S/R and diagnostics for oceanic mixed-layer depth
116    o move GMRedi call after all vertical mixing schemes (including KPP)
117    o pkg/thsice:
118     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
119      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
120    o pkg/obcs:
121     - bug fix for balance code
122    o pkg/seaice:
123      - allow values of SEAICE_elasticParm > 1
124      - add new parameter SEAICE_evpTauRelax as an alternative
125        to SEAICE_elasticParm
126      - make lsr boundary conditions free slip (by default), changes result
127      - add code for no slip boundary conditions for lsr
128      - set minimum of zeta to zero (and not 4e8) (changes results)
129      - add a cap on AREA after advecting AREA if seaice_growth is not called
130    o change calculation of Visbeck K:
131      - no longer depend on tapering scheme; instead, compute slope (limited
132        by GM_maxSlope). this is equivalent to what was comuted before with
133        clipping or linear tappering.
134      - fix vertical averaging (wrong by 1/2 level)
135      - leave the old version (but will not be maintained) within
136        #ifdef OLD_VISBECK_CALC / #endif
137      - update output of exp. ideal_2D_oce
138    o change error catch in calc_r_star to improve vectorization
139    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
140      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
141    o adjoint:
142      Re-organized adjoint checkpointing according to Matt Mazloff
143      (but with modifs/completions/cleanups)
144      Storing is now bundled into large arrays to optimized I/O
145      (and second step in cleanup of the_main_loop)
146    
147    checkpoint59b
148    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
149      - export/import (between ocean & coupler) fields needed for ocean DIC.
150    o pkg/seaice:
151      - get rid of three more exchanges seaice_calc_viscosities (required
152        different loop boundaries in seaice_lsr and seaice_ocean_stress)
153      - bug fix in seaice_ocean_stress (update of lab_sea required)
154      - reduce loop boundaries to necessary minimum also in seaice_evp
155      - go back to the old way of computing deltaC/Z as the adjoint likes that
156        better
157    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
158      passive tracer to an Age Tracer) + update output.txt
159    o pkg/exf:
160      - implement A-grid / C-grid selection for wind-stress input files.
161      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
162      for now, in exf_bulk_largeyeager04.F only :
163      - change implementation for case where windspeed + 2. components wind-stress
164        are read-in. AND use rhoConstFresh to convert evap.
165    o pkg/seaice:
166      - use correct EXCH_UV for wind-forcing (on A-grid).
167      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
168        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
169    o pkg/exf:
170      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
171      EXF_INTERPOLATION:
172      - merge global_with_exf/code version of exf_interp_read.F
173        to the main code ;
174      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
175        reading the file ; Important: This options needs to be defined to recover
176        previous code.
177        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
178      - no longer loose real*8 precision along the way when using exf_iprec=64.
179    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
180      - change discretisation of evp-solver in order to avoid another exchange
181        (changes lab_sea) and clean up a little
182      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
183        help the adjoint (this also changes the results slightly)
184      - add a few "_d 0" where they had been missing in seaice_evp.F
185      - cleaning up: remove unused seaice_calc_rhs.F
186    o pkg/exf: some cleaning-up:
187      - change various "constants" into runtime parameters
188      - cleaned-up Large&Yeager04 routine which should eventually
189        replace exf_bulkformulae.F (changed names of S/R and CPP)
190        and merged various ALLOW_ATM_WIND options
191     only used with thsice pkg (in thsice_get_exf.F):
192      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
193        which are used when useStabilityFct_overIce=TRUE (= the default)
194      - change default values of ice & snow emissivity and scale downward LW
195        by ice & snow emissivity.
196    o pkg/thsice:
197     fix few little problems, in thsice_calc_thickn.F:
198      - growth vertically (and not laterally) if iceFrac == iceMaskMax
199      - melt only laterally if hIce < hThinIce (as the comments say)
200      and in thsice_extend.F:
201      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
202      - start to form ice as soon as the minimum ice-volume is reachable.
203     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
204      and cpl_aim+ocn
205    o pkg/kpp
206     - move computation of surface related input fields to KPP into a new
207       subroutine kpp_forcing_surf.F
208     - remove wrong (within bi,bj loops) EXCH calls.
209     - little cleaning (add argument myThid in last position, cvs header ...)
210     - for now, fix conservation problem by exchanging KPPviscAz (may not
211       be the best fix)
212    o pkg/seaice
213     - check for inconsistent evp parameter/cpp-flag combination
214     - remove leftover errIO flat for obsolete name list error handling
215    o OpenAD
216     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
217    
218    checkpoint59a
219  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
220  o pkg/thsice: rename run-time parameters:  o pkg/thsice: rename run-time parameters:
221     himin       -> hIceMin     himin       -> hIceMin
# Line 41  o pkg/seaice: fix bug in evp solver, whi Line 253  o pkg/seaice: fix bug in evp solver, whi
253      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
254      in all cases)      in all cases)
255  o pkg/kpp: add code to have mixing in shelf ice caverns  o pkg/kpp: add code to have mixing in shelf ice caverns
256      - add myThid to all kpp routines (long overdue)
257    
258  checkpoint59  checkpoint59
259  o pkg/exf:  o pkg/exf:

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