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revision 1.811 by mlosch, Wed May 9 14:32:05 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)  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:  o pkg/exf: some cleaning-up:
187    - change various "constants" into runtime parameters    - change various "constants" into runtime parameters
188    - 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 196  o pkg/exf: some cleaning-up:
196  o pkg/thsice:  o pkg/thsice:
197   fix few little problems, in thsice_calc_thickn.F:   fix few little problems, in thsice_calc_thickn.F:
198    - growth vertically (and not laterally) if iceFrac == iceMaskMax    - growth vertically (and not laterally) if iceFrac == iceMaskMax
199    - melt laterally only if hIce < hThinIce (as the comments say)    - melt only laterally if hIce < hThinIce (as the comments say)
200    and in thsice_extend.F:    and in thsice_extend.F:
201    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)    - 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.    - start to form ice as soon as the minimum ice-volume is reachable.
# Line 34  o pkg/kpp Line 212  o pkg/kpp
212  o pkg/seaice  o pkg/seaice
213   - check for inconsistent evp parameter/cpp-flag combination   - check for inconsistent evp parameter/cpp-flag combination
214   - remove leftover errIO flat for obsolete name list error handling   - 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  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

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