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revision 1.731 by jmc, Wed Oct 11 23:26:13 2006 UTC revision 1.811 by mlosch, Wed May 9 14:32:05 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/seaice: rearrangement of common blocks (really needs more cleaning up)
8    o pkg/exf: some cleaning-up:
9      - change various "constants" into runtime parameters
10      - cleaned-up Large&Yeager04 routine which should eventually
11        replace exf_bulkformulae.F (changed names of S/R and CPP)
12        and merged various ALLOW_ATM_WIND options
13     only used with thsice pkg (in thsice_get_exf.F):
14      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
15        which are used when useStabilityFct_overIce=TRUE (= the default)
16      - change default values of ice & snow emissivity and scale downward LW
17        by ice & snow emissivity.
18    o pkg/thsice:
19     fix few little problems, in thsice_calc_thickn.F:
20      - growth vertically (and not laterally) if iceFrac == iceMaskMax
21      - melt laterally only if hIce < hThinIce (as the comments say)
22      and in thsice_extend.F:
23      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
24      - start to form ice as soon as the minimum ice-volume is reachable.
25     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
26      and cpl_aim+ocn
27    o pkg/kpp
28     - move computation of surface related input fields to KPP into a new
29       subroutine kpp_forcing_surf.F
30     - remove wrong (within bi,bj loops) EXCH calls.
31     - little cleaning (add argument myThid in last position, cvs header ...)
32     - for now, fix conservation problem by exchanging KPPviscAz (may not
33       be the best fix)
34    o pkg/seaice
35     - check for inconsistent evp parameter/cpp-flag combination
36     - remove leftover errIO flat for obsolete name list error handling
37    
38    checkpoint59a
39    o pkg/seaice: some parameter clarifications and a little bit of clean up
40    o pkg/thsice: rename run-time parameters:
41       himin       -> hIceMin
42       himin0      -> hThinIce
43       hihig       -> hThickIce
44       i0          -> i0swFrac
45       transCoef   -> bMeltCoef
46       frac_energy -> fracMelting
47      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
48       with default values (for now) that do not change the results.
49      remove old version of thsice vars advection in pkg/seaice.
50    o in FFIELDS.h:
51      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
52      - make pLoad & sIceLoad always available (but still only used if
53         ATMOSPHERIC_LOADING is #define).
54    o pkg/kpp: replaced _KPP_RL with _RL
55    o bug fixes for vertical diffusivity computations when both KPP and
56        3D diffusivity arrays are used.
57    o pkg/seaice: fix bug in evp solver, while doing that
58      - change (improve?) discretization of stress computations for both
59        cgrid-lsr and evp solver
60      - add a new routine to compute strain rates
61      - the above changes lab_sea results
62      - add no slip conditions for evp solver (off by default), lsr-version
63        may follow
64      - fix exchange for shear at Z-points (does not change lab_sea)
65      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
66        (to force the user to pick a time step since there is not "safe" way
67        of choosing it)
68      - add principal stress diagnostics
69      - rearrange fields for evp a little to avoid having to call a: too many
70        exchanges and b: exchanges for stress trensor components which we do
71        not have.
72      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
73        of evp, complete rewrite for lsr case (latter is does not yet work
74        in all cases)
75    o pkg/kpp: add code to have mixing in shelf ice caverns
76      - add myThid to all kpp routines (long overdue)
77    
78    checkpoint59
79    o pkg/exf:
80      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
81        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
82      - move exf header files from lower_case.h to UPPER_CASE.h ;
83        add missing cvs Header & Name
84      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
85      - add namelist param. selectStressGridPosition, exf_monFreq
86      - retire many _CLIM routines, and remove data.exf_clim
87        + params moved to data.exf
88        + climsst, climsss now handled by exf_set_gen, i.e.
89          climss?period=0 refers to constant field,
90          climss?period=-12 to monthly forcing
91      - split up namelists in data.exf
92    o pkg/seaice:
93      - remove seaice_exch and seaice_exch_uv
94      - remove superfluous exchange of theta
95      - add myThid to seaice_budget_ocean/ice
96      - add new interface for atmospheric wind forcing (C-grid only)
97        + new routine
98        + two new field (taux, tauy for stress over ice)
99        + removed one global field (DAIRN) for C-grid case only
100    o pkg/thsise
101      - 2nd set of modifs for thsice adjoint in conjunction with exf
102    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
103    
104    checkpoint58y_post
105    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
106      vertical diffusivity, similar to that in MOM4; turned on using
107      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
108      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
109    o Added capability for 3D specification of background vertical diffusion
110      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
111      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
112      "data" file that contains the 3D vertical diffusivity coefficients.
113    o ice dynamics (pkg/seaice) with thsice thermodynamics:
114      - add code within pkg thsice to advect & diffuse sea-ice fields
115      similar to (and will replace) what has been added in  seaice_advdiff.F,
116      but: - conserving Mass, Heat & Salt.
117           - better when using non-linear advection scheme (not yet fully tested)
118           - can also be used in atmospheric set-up (for now, only the diffusion).
119    
120    checkpoint58x_post
121    o IO option for global-file compact format:
122      - add options when generating topology (utils/exch2/matlab-topology-generator)
123      - add I/O capability (pkg/mdsio).
124      - adapt utils/matlab/rdmds.m to read this format.
125      for now long-line format not yet supported by pkg/mdsio (& exch2).
126    o shelfice: add a few diagnostics
127    
128    checkpoint58w_post
129    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
130      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
131      (and replace horiVertRatio in NH code).
132      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
133                         and tutorial_plume_on_slope (sensitive to truncation)
134    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
135      directly to drive seaice model (C-grid only)
136    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
137     - reintroduce computation of wind from stress,
138     - compute tau (in exf_bulkformulae.F) from windstress averaged to
139       mass points to avoid tau = 0
140     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
141    o rdmnc.m: make it work with "global" files created with gluemnc
142    o rdmnc.m : some improvements in dealing with singleton dimension
143      (tested on all testreport mnc output files).
144    o genmake2: disable pkg/profiles if netcdf test fails.
145    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
146    o move call to cal_readparms up to make calendar parameters/variable available
147      to all packages
148    
149    checkpoint58v_post
150    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
151      useDynP_inEos_Zc tested.
152    o pkg/exf: changes to properly interpolate/mask/scale initial fields
153    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
154      and portions thereof.  See read_cs.txt for description and examples.
155    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
156      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
157      following the great-circle arc between those 2 points.
158    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
159      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
160    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
161     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
162     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
163     - still needs work (not working with some options ; efficiency to improve)
164       and serious testing.
165     - use this scheme for temperature & salinity in 2 advection test exp.:
166       advect_xy & advect_xz, respectively.
167    
168    checkpoint58u_post
169    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
170    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
171    o testreport: add option "-skipdir" to skip some test.
172    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
173      momentum calculation.
174    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
175    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
176      remove checkpoint.F and the_correction_step.F (no longer used);
177      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
178    o add option (linFSConserveTr) to correct for tracer source/sink due to
179      Linear Free surface
180    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
181    o pkg/thsice: fix reading mnc-pickups
182    
183    checkpoint58t_post
184    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
185    o pkg/mdsio:
186     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
187       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
188       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
189     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
190     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
191       either MDS_READ_FIELD or MDS_WRITE_FIELD )
192     - new S/R (to replace MDSWRITEMETA), which allows to write more
193       informations (variable names, time ...) to meta files.
194     - modify rdmds.m to give back the meta file content.
195    o pkg/diagnostics: change vertical interpolation to be safer, and more
196       flexible (define p-levels to interpolate to in data.diagnostics);
197      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
198       diagnostic pointer.
199    o pkg/seaice: more cleaning up of seaice_growth, added many comments
200    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
201    o fix multi-category seaice:
202     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
203       SEAICE_MULTICATEGORY
204     - fix short wave heat flux
205    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
206       and allow to use EVP solver. Change forward lab_sea: test both EVP
207       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
208    o Initial check-in of lab_sea adjoint
209      (very similar to natl_box_adjoint/code_seaice)
210      * used C-grid and EVP solver
211      * used KPP, GM/Redi
212      * uses inAdExact=.TRUE.
213      * gradient checks fail for both ADM and TLM
214        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
215        f.d. gradients actually seem more problematic than ADM, TLM gradients;
216        issue is related to forward mismatch between g77 an ifort
217    o pkg/seaice: overhaul of thermodynamics
218     - growth.F and groatb.F are replaced by new routine seaice_growth.F
219     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
220     - move a few global fields out of SEAICE.h into seaice_growth.F and
221       make them 2D (FICE/QNETO/ ...)
222     - remove FO (it is the same as QNETO)
223     - introduce a few local fields to avoid modifying external fields such
224       as atemp, etc.
225    
226    checkpoint58s_post
227    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
228      changed exf_set_gen.F so that
229        genperiod=0 means input file is one time-constant field and
230        genperiod=-12 means input file contains 12 monthly means
231    o CG2D: use pre-computed solver main-diagonal (stored in common block);
232      this affects truncation error ; generate new output file for exp. which
233      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
234        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
235        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
236        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
237        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
238        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
239    o start implementation of deep-atmosphere and anelastic formulation
240    o verification: remove 2nd copy of input files and use script "prepare_run"
241      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
242    o mom_common/vecinv/fluxform: fix a few initialisation isssues
243    o profiles: fix for multithreaded case
244    
245    o diagnostics: rename few diags:
246      s/'PRESSURE'/'RCENTER '/g
247      s/'TICE    '/'oceFreez'/g
248      s/'TAUX    '/'oceTAUX '/g
249      s/'TAUY    '/'oceTAUY '/g
250      s/'SWFLUX  '/'oceQsw  '/g
251      s/DIFx/DFxE/g
252      s/DIFy/DFyE/g
253      and add few ocean-forcing diagnostics:
254      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
255    o modifications to pkg/seaice/growth.F and budget.F, which change results of
256      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
257      as actual snow thickness.  It now refers everywhere to effective snow
258      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
259    
260    checkpoint58r_post
261    o modifications to pkg/seaice/growth.F, which change results of
262      lab_sea experiment: fixes pertain to melting snow over open water, to
263      masking EVAP under sea ice, and to using the correct AREA variable for
264      computations of EVAP, PRECIP, HSNOW, and GHEFF
265    o add ability to read bathy, salt, and theta using MNC (off by def)
266    o add flooding algorithm and advection of HSNOW for pkg/seaice;
267      both are turned off by default and do no change any results
268    o seaice advection with pkg/thsice: a step toward the use of non-linear
269      advection scheme, but #ifdef or commented out for now (requires more EXCH).
270    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
271      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
272      in natl_box (affects results @ truncation level: update output.txt)
273    o multi-threading and IO:
274      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
275      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
276        (needed to work with SingleCpuIO): tested in all verif. exp.
277    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
278      affects the results (but none of the verification test uses this scheme).
279    o Adding some pkg/diagnostics capability to pkg/seaice
280      (will certainly be subject to changes)
281    o ctrl: adding new control variables:
282      lwflux, lwdown, evap, snowprecip, apressure, runoff
283    
284    checkpoint58q_post
285    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
286      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
287      high_res_cube configuration by 4% on Columbia.
288    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
289      add (in global_with_exf/code) a version of EXF_INTERP_READ without
290      dynamical allocation (seems to work in multi-threaded).
291    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
292      single CPU io) so that TAF does not have to see EESUPPORT.h
293  o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)  o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
294    
295  checkpoint58p_post  checkpoint58p_post

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