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revision 1.808 by jmc, Thu May 3 22:57:27 2007 UTC revision 1.858 by jmc, Thu Aug 16 02:34:16 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/generic_advdiff:
8     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
9      loop range indices for computing vertical advection tendency
10      and do the calculation in the interior only (no overlap) ;
11      for now, only implemented for SOM advection (to save CPU time).
12     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
13    o exch2 adjoint
14      First set of changes:
15      - add exch2 hand-written adjoint templates
16      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
17        This will require cleanup in pkg/autodiff/*.F
18        (changed routines currently kept separate in verif. code/)
19      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
20        that used to hide exch2 or cubed-sphere specific code
21        (commented via 'cph-exch2')
22    o pkg/seaice
23      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
24    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
25       output of global_ocean.cs32x15.thsice .
26    
27    checkpoint59e
28    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
29      for B-grid vector (not yet tested) and C-grid vector (<- only used
30      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
31    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
32      (#ifdef ALLOW_SALT_PLUME)
33    o gather_2d/scatter_2d: removed halo regions
34    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
35      scheme and the corresponding test case (under front_relax dir). For now,
36      only available with Skew-flux form and not yet tested in realistic set-up.
37      adjoint: store directives updated, but gradient checks deteriorated,
38      so maybe GM/Redi adjoint is now broken.
39    o seaice adjoint
40      * add AREA, HEFF, HSNOW as control variable
41        (should not change lab_sea results)
42      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
43    o pkg/seaice:
44      * added computation of saltFlux in seaice_growth;
45        For time being, sea ice salinity is assumed constant
46        contribution of snow flooding to freshening of sea ice is neglected.
47        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
48        defaults to 0.0 in order to maintain backward compatibility.
49        Typical values for SEAICE_salinity are 4 to 10 g/kg.
50      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
51      * added SEAICE_availHeatFrac, which specifies fraction of surface level
52        heat content used to melt or grow ice
53      * commented out cap of HICE: it helps keep ice thinner
54      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
55      * applied OBCS T/S mask to HEFFM sea ice mask
56    
57    checkpoint59d
58    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
59     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
60     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
61    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
62     and change default value of parameter "GM_Small_Number";
63     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
64       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
65       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
66    o pkg/ecco: cost function when applying pkg/smooth to controls
67    o pkg/ctrl: add forcingPrecond run time parameter
68    o pkg/seaice:
69     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
70     - fix bug in metric terms of u-equation in LSR solver (implicit part),
71       changes verification/lab_sea
72     - rearrange implicit part of u-equation in LSR solver to make it easier to
73       read, understand, and debug. This causes changes at the truncation level.
74     - fix (serious) bug in the boundary conditions (sign error in the implicit
75       part) of the LSR solver. Changes all LSR results.
76     - fixed problem with HSNOW initialization to avoid thick snow when AREA
77       is initilized with small values - does not change lab_sea results.
78     - added HsnowFile initialization capability
79    o pkg/smooth: addition to model/src and pkg/ctrl so allow
80     initialization of pkg/smooth and application to control vector
81    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
82    o dependencies: pkg/profiles requires pkg/cal
83    o pkg/profiles:
84     - added option ALLOW_PROFILES_GENERICGRID
85         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
86         that interpolation information (grid points and coefficients) is provided
87         within the netcdf input files.
88         -> sample matlab scripts can be found in MITgcm_contrib/gael
89         that allow you to prepare netcdf input files.
90     - also modified: cleaner include statements, cleaner error print statements,
91       cleaner stops when error, and more tests of the netcdf input files consistency.
92    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
93    o pkg/seaice:
94     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
95       requires a new routine: seaice_diagnostics_fill.F
96     - make sure that seaice does not move if not forced (pressure replacement
97       method, Hibler and Ip, 1995), changes results
98     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
99     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
100       It is turned off by default (=-1.), because it changes the results.
101     - make it possible to read AREA from a file, too.
102    
103    checkpoint59c
104    o add S/R and diagnostics for oceanic mixed-layer depth
105    o move GMRedi call after all vertical mixing schemes (including KPP)
106    o pkg/thsice:
107     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
108      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
109    o pkg/obcs:
110     - bug fix for balance code
111    o pkg/seaice:
112      - allow values of SEAICE_elasticParm > 1
113      - add new parameter SEAICE_evpTauRelax as an alternative
114        to SEAICE_elasticParm
115      - make lsr boundary conditions free slip (by default), changes result
116      - add code for no slip boundary conditions for lsr
117      - set minimum of zeta to zero (and not 4e8) (changes results)
118      - add a cap on AREA after advecting AREA if seaice_growth is not called
119    o change calculation of Visbeck K:
120      - no longer depend on tapering scheme; instead, compute slope (limited
121        by GM_maxSlope). this is equivalent to what was comuted before with
122        clipping or linear tappering.
123      - fix vertical averaging (wrong by 1/2 level)
124      - leave the old version (but will not be maintained) within
125        #ifdef OLD_VISBECK_CALC / #endif
126      - update output of exp. ideal_2D_oce
127    o change error catch in calc_r_star to improve vectorization
128    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
129      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
130    o adjoint:
131      Re-organized adjoint checkpointing according to Matt Mazloff
132      (but with modifs/completions/cleanups)
133      Storing is now bundled into large arrays to optimized I/O
134      (and second step in cleanup of the_main_loop)
135    
136    checkpoint59b
137    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
138      - export/import (between ocean & coupler) fields needed for ocean DIC.
139    o pkg/seaice:
140      - get rid of three more exchanges seaice_calc_viscosities (required
141        different loop boundaries in seaice_lsr and seaice_ocean_stress)
142      - bug fix in seaice_ocean_stress (update of lab_sea required)
143      - reduce loop boundaries to necessary minimum also in seaice_evp
144      - go back to the old way of computing deltaC/Z as the adjoint likes that
145        better
146    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
147      passive tracer to an Age Tracer) + update output.txt
148    o pkg/exf:
149      - implement A-grid / C-grid selection for wind-stress input files.
150      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
151      for now, in exf_bulk_largeyeager04.F only :
152      - change implementation for case where windspeed + 2. components wind-stress
153        are read-in. AND use rhoConstFresh to convert evap.
154    o pkg/seaice:
155      - use correct EXCH_UV for wind-forcing (on A-grid).
156      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
157        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
158    o pkg/exf:
159      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
160      EXF_INTERPOLATION:
161      - merge global_with_exf/code version of exf_interp_read.F
162        to the main code ;
163      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
164        reading the file ; Important: This options needs to be defined to recover
165        previous code.
166        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
167      - no longer loose real*8 precision along the way when using exf_iprec=64.
168    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
169      - change discretisation of evp-solver in order to avoid another exchange
170        (changes lab_sea) and clean up a little
171      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
172        help the adjoint (this also changes the results slightly)
173      - add a few "_d 0" where they had been missing in seaice_evp.F
174      - cleaning up: remove unused seaice_calc_rhs.F
175    o pkg/exf: some cleaning-up:
176      - change various "constants" into runtime parameters
177      - cleaned-up Large&Yeager04 routine which should eventually
178        replace exf_bulkformulae.F (changed names of S/R and CPP)
179        and merged various ALLOW_ATM_WIND options
180     only used with thsice pkg (in thsice_get_exf.F):
181      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
182        which are used when useStabilityFct_overIce=TRUE (= the default)
183      - change default values of ice & snow emissivity and scale downward LW
184        by ice & snow emissivity.
185    o pkg/thsice:
186     fix few little problems, in thsice_calc_thickn.F:
187      - growth vertically (and not laterally) if iceFrac == iceMaskMax
188      - melt only laterally if hIce < hThinIce (as the comments say)
189      and in thsice_extend.F:
190      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
191      - start to form ice as soon as the minimum ice-volume is reachable.
192     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
193      and cpl_aim+ocn
194  o pkg/kpp  o pkg/kpp
  - remove wrong (within bi,bj loops) EXCH calls.  
  - little cleaning (add argument myThid in last position, cvs header ...)  
195   - move computation of surface related input fields to KPP into a new   - move computation of surface related input fields to KPP into a new
196     subroutine kpp_forcing_surf.F     subroutine kpp_forcing_surf.F
197     - remove wrong (within bi,bj loops) EXCH calls.
198     - little cleaning (add argument myThid in last position, cvs header ...)
199     - for now, fix conservation problem by exchanging KPPviscAz (may not
200       be the best fix)
201  o pkg/seaice  o pkg/seaice
202   - check for inconsistent evp parameter/cpp-flag combination   - check for inconsistent evp parameter/cpp-flag combination
203   - remove leftover errIO flat for obsolete name list error handling   - remove leftover errIO flat for obsolete name list error handling
204    o OpenAD
205     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
206    
207  checkpoint59a  checkpoint59a
208  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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