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revision 1.730 by cnh, Wed Oct 11 19:30:01 2006 UTC revision 1.810 by jmc, Wed May 9 13:00:47 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/exf: some cleaning-up:
8      - change various "constants" into runtime parameters
9      - cleaned-up Large&Yeager04 routine which should eventually
10        replace exf_bulkformulae.F (changed names of S/R and CPP)
11        and merged various ALLOW_ATM_WIND options
12     only used with thsice pkg (in thsice_get_exf.F):
13      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
14        which are used when useStabilityFct_overIce=TRUE (= the default)
15      - change default values of ice & snow emissivity and scale downward LW
16        by ice & snow emissivity.
17    o pkg/thsice:
18     fix few little problems, in thsice_calc_thickn.F:
19      - growth vertically (and not laterally) if iceFrac == iceMaskMax
20      - melt laterally only if hIce < hThinIce (as the comments say)
21      and in thsice_extend.F:
22      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
23      - start to form ice as soon as the minimum ice-volume is reachable.
24     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
25      and cpl_aim+ocn
26    o pkg/kpp
27     - move computation of surface related input fields to KPP into a new
28       subroutine kpp_forcing_surf.F
29     - remove wrong (within bi,bj loops) EXCH calls.
30     - little cleaning (add argument myThid in last position, cvs header ...)
31     - for now, fix conservation problem by exchanging KPPviscAz (may not
32       be the best fix)
33    o pkg/seaice
34     - check for inconsistent evp parameter/cpp-flag combination
35     - remove leftover errIO flat for obsolete name list error handling
36    
37    checkpoint59a
38    o pkg/seaice: some parameter clarifications and a little bit of clean up
39    o pkg/thsice: rename run-time parameters:
40       himin       -> hIceMin
41       himin0      -> hThinIce
42       hihig       -> hThickIce
43       i0          -> i0swFrac
44       transCoef   -> bMeltCoef
45       frac_energy -> fracMelting
46      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
47       with default values (for now) that do not change the results.
48      remove old version of thsice vars advection in pkg/seaice.
49    o in FFIELDS.h:
50      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
51      - make pLoad & sIceLoad always available (but still only used if
52         ATMOSPHERIC_LOADING is #define).
53    o pkg/kpp: replaced _KPP_RL with _RL
54    o bug fixes for vertical diffusivity computations when both KPP and
55        3D diffusivity arrays are used.
56    o pkg/seaice: fix bug in evp solver, while doing that
57      - change (improve?) discretization of stress computations for both
58        cgrid-lsr and evp solver
59      - add a new routine to compute strain rates
60      - the above changes lab_sea results
61      - add no slip conditions for evp solver (off by default), lsr-version
62        may follow
63      - fix exchange for shear at Z-points (does not change lab_sea)
64      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
65        (to force the user to pick a time step since there is not "safe" way
66        of choosing it)
67      - add principal stress diagnostics
68      - rearrange fields for evp a little to avoid having to call a: too many
69        exchanges and b: exchanges for stress trensor components which we do
70        not have.
71      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
72        of evp, complete rewrite for lsr case (latter is does not yet work
73        in all cases)
74    o pkg/kpp: add code to have mixing in shelf ice caverns
75      - add myThid to all kpp routines (long overdue)
76    
77    checkpoint59
78    o pkg/exf:
79      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
80        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
81      - move exf header files from lower_case.h to UPPER_CASE.h ;
82        add missing cvs Header & Name
83      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
84      - add namelist param. selectStressGridPosition, exf_monFreq
85      - retire many _CLIM routines, and remove data.exf_clim
86        + params moved to data.exf
87        + climsst, climsss now handled by exf_set_gen, i.e.
88          climss?period=0 refers to constant field,
89          climss?period=-12 to monthly forcing
90      - split up namelists in data.exf
91    o pkg/seaice:
92      - remove seaice_exch and seaice_exch_uv
93      - remove superfluous exchange of theta
94      - add myThid to seaice_budget_ocean/ice
95      - add new interface for atmospheric wind forcing (C-grid only)
96        + new routine
97        + two new field (taux, tauy for stress over ice)
98        + removed one global field (DAIRN) for C-grid case only
99    o pkg/thsise
100      - 2nd set of modifs for thsice adjoint in conjunction with exf
101    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
102    
103    checkpoint58y_post
104    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
105      vertical diffusivity, similar to that in MOM4; turned on using
106      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
107      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
108    o Added capability for 3D specification of background vertical diffusion
109      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
110      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
111      "data" file that contains the 3D vertical diffusivity coefficients.
112    o ice dynamics (pkg/seaice) with thsice thermodynamics:
113      - add code within pkg thsice to advect & diffuse sea-ice fields
114      similar to (and will replace) what has been added in  seaice_advdiff.F,
115      but: - conserving Mass, Heat & Salt.
116           - better when using non-linear advection scheme (not yet fully tested)
117           - can also be used in atmospheric set-up (for now, only the diffusion).
118    
119    checkpoint58x_post
120    o IO option for global-file compact format:
121      - add options when generating topology (utils/exch2/matlab-topology-generator)
122      - add I/O capability (pkg/mdsio).
123      - adapt utils/matlab/rdmds.m to read this format.
124      for now long-line format not yet supported by pkg/mdsio (& exch2).
125    o shelfice: add a few diagnostics
126    
127    checkpoint58w_post
128    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
129      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
130      (and replace horiVertRatio in NH code).
131      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
132                         and tutorial_plume_on_slope (sensitive to truncation)
133    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
134      directly to drive seaice model (C-grid only)
135    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
136     - reintroduce computation of wind from stress,
137     - compute tau (in exf_bulkformulae.F) from windstress averaged to
138       mass points to avoid tau = 0
139     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
140    o rdmnc.m: make it work with "global" files created with gluemnc
141    o rdmnc.m : some improvements in dealing with singleton dimension
142      (tested on all testreport mnc output files).
143    o genmake2: disable pkg/profiles if netcdf test fails.
144    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
145    o move call to cal_readparms up to make calendar parameters/variable available
146      to all packages
147    
148    checkpoint58v_post
149    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
150      useDynP_inEos_Zc tested.
151    o pkg/exf: changes to properly interpolate/mask/scale initial fields
152    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
153      and portions thereof.  See read_cs.txt for description and examples.
154    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
155      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
156      following the great-circle arc between those 2 points.
157    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
158      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
159    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
160     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
161     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
162     - still needs work (not working with some options ; efficiency to improve)
163       and serious testing.
164     - use this scheme for temperature & salinity in 2 advection test exp.:
165       advect_xy & advect_xz, respectively.
166    
167    checkpoint58u_post
168    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
169    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
170    o testreport: add option "-skipdir" to skip some test.
171    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
172      momentum calculation.
173    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
174    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
175      remove checkpoint.F and the_correction_step.F (no longer used);
176      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
177    o add option (linFSConserveTr) to correct for tracer source/sink due to
178      Linear Free surface
179    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
180    o pkg/thsice: fix reading mnc-pickups
181    
182    checkpoint58t_post
183    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
184    o pkg/mdsio:
185     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
186       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
187       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
188     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
189     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
190       either MDS_READ_FIELD or MDS_WRITE_FIELD )
191     - new S/R (to replace MDSWRITEMETA), which allows to write more
192       informations (variable names, time ...) to meta files.
193     - modify rdmds.m to give back the meta file content.
194    o pkg/diagnostics: change vertical interpolation to be safer, and more
195       flexible (define p-levels to interpolate to in data.diagnostics);
196      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
197       diagnostic pointer.
198    o pkg/seaice: more cleaning up of seaice_growth, added many comments
199    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
200    o fix multi-category seaice:
201     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
202       SEAICE_MULTICATEGORY
203     - fix short wave heat flux
204    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
205       and allow to use EVP solver. Change forward lab_sea: test both EVP
206       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
207    o Initial check-in of lab_sea adjoint
208      (very similar to natl_box_adjoint/code_seaice)
209      * used C-grid and EVP solver
210      * used KPP, GM/Redi
211      * uses inAdExact=.TRUE.
212      * gradient checks fail for both ADM and TLM
213        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
214        f.d. gradients actually seem more problematic than ADM, TLM gradients;
215        issue is related to forward mismatch between g77 an ifort
216    o pkg/seaice: overhaul of thermodynamics
217     - growth.F and groatb.F are replaced by new routine seaice_growth.F
218     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
219     - move a few global fields out of SEAICE.h into seaice_growth.F and
220       make them 2D (FICE/QNETO/ ...)
221     - remove FO (it is the same as QNETO)
222     - introduce a few local fields to avoid modifying external fields such
223       as atemp, etc.
224    
225    checkpoint58s_post
226    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
227      changed exf_set_gen.F so that
228        genperiod=0 means input file is one time-constant field and
229        genperiod=-12 means input file contains 12 monthly means
230    o CG2D: use pre-computed solver main-diagonal (stored in common block);
231      this affects truncation error ; generate new output file for exp. which
232      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
233        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
234        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
235        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
236        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
237        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
238    o start implementation of deep-atmosphere and anelastic formulation
239    o verification: remove 2nd copy of input files and use script "prepare_run"
240      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
241    o mom_common/vecinv/fluxform: fix a few initialisation isssues
242    o profiles: fix for multithreaded case
243    
244    o diagnostics: rename few diags:
245      s/'PRESSURE'/'RCENTER '/g
246      s/'TICE    '/'oceFreez'/g
247      s/'TAUX    '/'oceTAUX '/g
248      s/'TAUY    '/'oceTAUY '/g
249      s/'SWFLUX  '/'oceQsw  '/g
250      s/DIFx/DFxE/g
251      s/DIFy/DFyE/g
252      and add few ocean-forcing diagnostics:
253      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
254    o modifications to pkg/seaice/growth.F and budget.F, which change results of
255      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
256      as actual snow thickness.  It now refers everywhere to effective snow
257      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
258    
259    checkpoint58r_post
260    o modifications to pkg/seaice/growth.F, which change results of
261      lab_sea experiment: fixes pertain to melting snow over open water, to
262      masking EVAP under sea ice, and to using the correct AREA variable for
263      computations of EVAP, PRECIP, HSNOW, and GHEFF
264    o add ability to read bathy, salt, and theta using MNC (off by def)
265    o add flooding algorithm and advection of HSNOW for pkg/seaice;
266      both are turned off by default and do no change any results
267    o seaice advection with pkg/thsice: a step toward the use of non-linear
268      advection scheme, but #ifdef or commented out for now (requires more EXCH).
269    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
270      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
271      in natl_box (affects results @ truncation level: update output.txt)
272    o multi-threading and IO:
273      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
274      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
275        (needed to work with SingleCpuIO): tested in all verif. exp.
276    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
277      affects the results (but none of the verification test uses this scheme).
278    o Adding some pkg/diagnostics capability to pkg/seaice
279      (will certainly be subject to changes)
280    o ctrl: adding new control variables:
281      lwflux, lwdown, evap, snowprecip, apressure, runoff
282    
283    checkpoint58q_post
284    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
285      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
286      high_res_cube configuration by 4% on Columbia.
287    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
288      add (in global_with_exf/code) a version of EXF_INTERP_READ without
289      dynamical allocation (seems to work in multi-threaded).
290    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
291      single CPU io) so that TAF does not have to see EESUPPORT.h
292  o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)  o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
293    
294  checkpoint58p_post  checkpoint58p_post

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