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revision 1.834 by jmc, Tue Jun 12 16:04:45 2007 UTC revision 1.893 by jmc, Fri Oct 19 19:10:24 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 prepare for "clever pickup" implementation: add new header file "RESTART.h"
8      for internal parameters related to restart process (formerly from PARAMS.h)
9      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
10    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
11      as argument. (only atm2d & obcs write_pickup have not yet been updated)
12    o pkg/monitor:
13      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
14      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
15      - account for deep Atmosphere factor and density factor (anelastic)
16    o added open boundary conditions capability for seaice HEFF and AREA
17    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
18      thermodynamics
19      - requires a little reorganization, which affects the testreport results
20        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
21        so that now the conservative form is tested
22      - add a few comments
23    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
24    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
25    o add new diagnostics to seaice: advective, diffusive fluxes (only for
26      multidim-advection, for scheme 2 they are not filled) and transports,
27      thermodynamic growth rates
28    o change units of EmPmR (inside the code) from m/s to kg/m2/s (mass flux) but
29      leave input file unchanged. Affects results @ truncation level (cg2d match)
30      and update output of experiments: lab_sea(6), global_ocean.90x40x15(10),
31      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
32      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
33      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
34    
35    checkpoint59h
36    o pkg/exf:
37      - improve vectorization by moving if-statement out of loops in
38        exf_mapfields, exf_radiation
39      - exf_bulkformulae.F: introduce 2D fields and vectorize code
40    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
41    o testreport:
42      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
43        monitor & update offline_exf_seaice exp. output.
44      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
45    o pkg/seaice:
46      - bug fix in the evp solver: boundary conditions were affected be
47        masking of zMax/zMin (changes results)
48      - minor bug fix in boundary conditions in seaice_calc_strainrates
49        (changes results for no_slip)
50      - seaice_lsr.F: make interpolation of eta dependent on boundaries
51      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
52      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
53        stress formulation and no-slip boundary conditions
54    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
55      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
56    o pkg/seaice: a first HSALT time stepping equation has been checked in
57    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
58      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
59      without requiring DO-IF statements
60    o pkg/thsice:
61      use continuous power-law function for partition of energy between lateral
62      melting/freezing and thinning/thickening ; old code using step function
63      still available with #undef THSICE_FRACEN_POWERLAW
64      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
65    o testreport: change AD testing : check against results/output_adm.txt
66      using same scripts as for forward test.
67    
68    checkpoint59g
69    o adjoint testing: in preparation for changing testreport:
70      - output format: cost and grad written on separated lines
71      - ad output results in directory "results" (instead of "results_ad")
72    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
73    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
74    o pkg/ecco: allow user defined cost function contributions
75    o testreport:
76      Allow to choose (per experiment) the list of tested output variables
77       and the main variable (used to issue a pass/FAIL ) ;
78      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
79      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
80      Also modify printing of summary:
81       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
82       b) echo the list of tested variables in the individual summary.txt of
83          each experiment.
84    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
85      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
86      (but still depend on the tile decompostion of the domain).
87    o pkg/seaice: change a discretization detail to make the B-grid code
88      "more symmetric". This change is likely to remove all "ridges/leads" that
89      where quasi-aligned with the grid in B-grid solutions. It may also be
90      the solution to the stress coupling issues with the B-grid.
91    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
92      remove .cvsignore from input dir. (since testreport no longer run here).
93    o pkg/thsice:
94     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
95     - fix reshaping of sea-ice just after advection:
96       melt all the ice only if ice-volume is too small.
97     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
98       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
99     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
100    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
101      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
102    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
103      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
104      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
105      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
106      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
107      -> update output.txt
108    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
109     this affects truncation error: -> update output.txt of exp:
110      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
111      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
112    
113    checkpoint59f
114    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
115    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
116      a bounded range (in forward mode)
117    o pkg/ecco, ctrl, autodiff and mom_common:
118     internal parameter controls, completements of implementations
119    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
120    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
121      (not seem any difference in testing results).
122    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
123       at face corners.
124    o pkg/generic_advdiff:
125     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
126      loop range indices for computing vertical advection tendency
127      and do the calculation in the interior only (no overlap) ;
128      for now, only implemented for SOM advection (to save CPU time).
129     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
130    o exch2 adjoint
131      First set of changes:
132      - add exch2 hand-written adjoint templates
133      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
134        This will require cleanup in pkg/autodiff/*.F
135        (changed routines currently kept separate in verif. code/)
136      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
137        that used to hide exch2 or cubed-sphere specific code
138        (commented via 'cph-exch2')
139    o pkg/seaice
140      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
141    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
142       output of global_ocean.cs32x15.thsice .
143    
144    checkpoint59e
145    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
146      for B-grid vector (not yet tested) and C-grid vector (<- only used
147      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
148    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
149      (#ifdef ALLOW_SALT_PLUME)
150    o gather_2d/scatter_2d: removed halo regions
151    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
152      scheme and the corresponding test case (under front_relax dir). For now,
153      only available with Skew-flux form and not yet tested in realistic set-up.
154      adjoint: store directives updated, but gradient checks deteriorated,
155      so maybe GM/Redi adjoint is now broken.
156    o seaice adjoint
157      * add AREA, HEFF, HSNOW as control variable
158        (should not change lab_sea results)
159      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
160    o pkg/seaice:
161      * added computation of saltFlux in seaice_growth;
162        For time being, sea ice salinity is assumed constant
163        contribution of snow flooding to freshening of sea ice is neglected.
164        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
165        defaults to 0.0 in order to maintain backward compatibility.
166        Typical values for SEAICE_salinity are 4 to 10 g/kg.
167      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
168      * added SEAICE_availHeatFrac, which specifies fraction of surface level
169        heat content used to melt or grow ice
170      * commented out cap of HICE: it helps keep ice thinner
171      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
172      * applied OBCS T/S mask to HEFFM sea ice mask
173    
174    checkpoint59d
175    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
176     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
177     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
178    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
179     and change default value of parameter "GM_Small_Number";
180     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
181       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
182       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
183    o pkg/ecco: cost function when applying pkg/smooth to controls
184    o pkg/ctrl: add forcingPrecond run time parameter
185    o pkg/seaice:
186     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
187     - fix bug in metric terms of u-equation in LSR solver (implicit part),
188       changes verification/lab_sea
189     - rearrange implicit part of u-equation in LSR solver to make it easier to
190       read, understand, and debug. This causes changes at the truncation level.
191     - fix (serious) bug in the boundary conditions (sign error in the implicit
192       part) of the LSR solver. Changes all LSR results.
193     - fixed problem with HSNOW initialization to avoid thick snow when AREA
194       is initilized with small values - does not change lab_sea results.
195     - added HsnowFile initialization capability
196    o pkg/smooth: addition to model/src and pkg/ctrl so allow
197     initialization of pkg/smooth and application to control vector
198    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
199    o dependencies: pkg/profiles requires pkg/cal
200    o pkg/profiles:
201     - added option ALLOW_PROFILES_GENERICGRID
202         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
203         that interpolation information (grid points and coefficients) is provided
204         within the netcdf input files.
205         -> sample matlab scripts can be found in MITgcm_contrib/gael
206         that allow you to prepare netcdf input files.
207     - also modified: cleaner include statements, cleaner error print statements,
208       cleaner stops when error, and more tests of the netcdf input files consistency.
209  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
210  o pkg/seaice:  o pkg/seaice:
211   - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this   - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
# Line 137  o in FFIELDS.h: Line 339  o in FFIELDS.h:
339       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
340  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
341  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
342      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
343        are no longer updating the vertical diffusivity array
344        (passed as argument) but are (re-) setting those arrays.
345  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
346    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
347      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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