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revision 1.743 by edhill, Sun Nov 5 18:36:05 2006 UTC revision 1.796 by mlosch, Sun Apr 22 19:57:13 2007 UTC
# Line 3  $Name$ Line 3  $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice: fix bug in evp solver, while doing that
8      - change (improve?) discretization of stress computations for both
9        cgrid-lsr and evp solver
10      - add a new routine to compute strain rates
11      - the above changes lab_sea results
12      - add no slip conditions for evp solver (off by default), lsr-version
13        may follow
14      - fix exchange for shear at Z-points (does not change lab_sea)
15      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
16        (to force the user to pick a time step since there is not "safe" way
17        of choosing it)
18    o pkg/kpp: add code to have mixing in shelf ice caverns
19    
20    checkpoint59
21    o pkg/exf:
22      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
23        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
24      - move exf header files from lower_case.h to UPPER_CASE.h ;
25        add missing cvs Header & Name
26      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
27      - add namelist param. selectStressGridPosition, exf_monFreq
28      - retire many _CLIM routines, and remove data.exf_clim
29        + params moved to data.exf
30        + climsst, climsss now handled by exf_set_gen, i.e.
31          climss?period=0 refers to constant field,
32          climss?period=-12 to monthly forcing
33      - split up namelists in data.exf
34    o pkg/seaice:
35      - remove seaice_exch and seaice_exch_uv
36      - remove superfluous exchange of theta
37      - add myThid to seaice_budget_ocean/ice
38      - add new interface for atmospheric wind forcing (C-grid only)
39        + new routine
40        + two new field (taux, tauy for stress over ice)
41        + removed one global field (DAIRN) for C-grid case only
42    o pkg/thsise
43      - 2nd set of modifs for thsice adjoint in conjunction with exf
44    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
45    
46    checkpoint58y_post
47    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
48      vertical diffusivity, similar to that in MOM4; turned on using
49      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
50      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
51    o Added capability for 3D specification of background vertical diffusion
52      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
53      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
54      "data" file that contains the 3D vertical diffusivity coefficients.
55    o ice dynamics (pkg/seaice) with thsice thermodynamics:
56      - add code within pkg thsice to advect & diffuse sea-ice fields
57      similar to (and will replace) what has been added in  seaice_advdiff.F,
58      but: - conserving Mass, Heat & Salt.
59           - better when using non-linear advection scheme (not yet fully tested)
60           - can also be used in atmospheric set-up (for now, only the diffusion).
61    
62    checkpoint58x_post
63    o IO option for global-file compact format:
64      - add options when generating topology (utils/exch2/matlab-topology-generator)
65      - add I/O capability (pkg/mdsio).
66      - adapt utils/matlab/rdmds.m to read this format.
67      for now long-line format not yet supported by pkg/mdsio (& exch2).
68    o shelfice: add a few diagnostics
69    
70    checkpoint58w_post
71    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
72      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
73      (and replace horiVertRatio in NH code).
74      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
75                         and tutorial_plume_on_slope (sensitive to truncation)
76    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
77      directly to drive seaice model (C-grid only)
78    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
79     - reintroduce computation of wind from stress,
80     - compute tau (in exf_bulkformulae.F) from windstress averaged to
81       mass points to avoid tau = 0
82     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
83    o rdmnc.m: make it work with "global" files created with gluemnc
84    o rdmnc.m : some improvements in dealing with singleton dimension
85      (tested on all testreport mnc output files).
86    o genmake2: disable pkg/profiles if netcdf test fails.
87    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
88    o move call to cal_readparms up to make calendar parameters/variable available
89      to all packages
90    
91    checkpoint58v_post
92    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
93      useDynP_inEos_Zc tested.
94    o pkg/exf: changes to properly interpolate/mask/scale initial fields
95    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
96      and portions thereof.  See read_cs.txt for description and examples.
97    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
98      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
99      following the great-circle arc between those 2 points.
100    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
101      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
102    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
103     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
104     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
105     - still needs work (not working with some options ; efficiency to improve)
106       and serious testing.
107     - use this scheme for temperature & salinity in 2 advection test exp.:
108       advect_xy & advect_xz, respectively.
109    
110    checkpoint58u_post
111    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
112    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
113    o testreport: add option "-skipdir" to skip some test.
114    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
115      momentum calculation.
116    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
117    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
118      remove checkpoint.F and the_correction_step.F (no longer used);
119      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
120    o add option (linFSConserveTr) to correct for tracer source/sink due to
121      Linear Free surface
122    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
123    o pkg/thsice: fix reading mnc-pickups
124    
125    checkpoint58t_post
126    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
127    o pkg/mdsio:
128     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
129       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
130       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
131     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
132     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
133       either MDS_READ_FIELD or MDS_WRITE_FIELD )
134     - new S/R (to replace MDSWRITEMETA), which allows to write more
135       informations (variable names, time ...) to meta files.
136     - modify rdmds.m to give back the meta file content.
137    o pkg/diagnostics: change vertical interpolation to be safer, and more
138       flexible (define p-levels to interpolate to in data.diagnostics);
139      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
140       diagnostic pointer.
141    o pkg/seaice: more cleaning up of seaice_growth, added many comments
142    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
143    o fix multi-category seaice:
144     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
145       SEAICE_MULTICATEGORY
146     - fix short wave heat flux
147    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
148       and allow to use EVP solver. Change forward lab_sea: test both EVP
149       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
150    o Initial check-in of lab_sea adjoint
151      (very similar to natl_box_adjoint/code_seaice)
152      * used C-grid and EVP solver
153      * used KPP, GM/Redi
154      * uses inAdExact=.TRUE.
155      * gradient checks fail for both ADM and TLM
156        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
157        f.d. gradients actually seem more problematic than ADM, TLM gradients;
158        issue is related to forward mismatch between g77 an ifort
159    o pkg/seaice: overhaul of thermodynamics
160     - growth.F and groatb.F are replaced by new routine seaice_growth.F
161     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
162     - move a few global fields out of SEAICE.h into seaice_growth.F and
163       make them 2D (FICE/QNETO/ ...)
164     - remove FO (it is the same as QNETO)
165     - introduce a few local fields to avoid modifying external fields such
166       as atemp, etc.
167    
168    checkpoint58s_post
169    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
170      changed exf_set_gen.F so that
171        genperiod=0 means input file is one time-constant field and
172        genperiod=-12 means input file contains 12 monthly means
173    o CG2D: use pre-computed solver main-diagonal (stored in common block);
174      this affects truncation error ; generate new output file for exp. which
175      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
176        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
177        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
178        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
179        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
180        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
181    o start implementation of deep-atmosphere and anelastic formulation
182    o verification: remove 2nd copy of input files and use script "prepare_run"
183      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
184    o mom_common/vecinv/fluxform: fix a few initialisation isssues
185    o profiles: fix for multithreaded case
186    
187    o diagnostics: rename few diags:
188      s/'PRESSURE'/'RCENTER '/g
189      s/'TICE    '/'oceFreez'/g
190      s/'TAUX    '/'oceTAUX '/g
191      s/'TAUY    '/'oceTAUY '/g
192      s/'SWFLUX  '/'oceQsw  '/g
193      s/DIFx/DFxE/g
194      s/DIFy/DFyE/g
195      and add few ocean-forcing diagnostics:
196      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
197    o modifications to pkg/seaice/growth.F and budget.F, which change results of
198      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
199      as actual snow thickness.  It now refers everywhere to effective snow
200      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
201    
202    checkpoint58r_post
203    o modifications to pkg/seaice/growth.F, which change results of
204      lab_sea experiment: fixes pertain to melting snow over open water, to
205      masking EVAP under sea ice, and to using the correct AREA variable for
206      computations of EVAP, PRECIP, HSNOW, and GHEFF
207  o add ability to read bathy, salt, and theta using MNC (off by def)  o add ability to read bathy, salt, and theta using MNC (off by def)
208  o add flooding algorithm and advection of HSNOW for pkg/seaice;  o add flooding algorithm and advection of HSNOW for pkg/seaice;
209    both are turned off by default and do no change any results    both are turned off by default and do no change any results

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