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revision 1.714 by jmc, Mon Aug 14 01:11:08 2006 UTC revision 1.805 by jmc, Tue May 1 12:29:18 2007 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint59a
8    o pkg/seaice: some parameter clarifications and a little bit of clean up
9    o pkg/thsice: rename run-time parameters:
10       himin       -> hIceMin
11       himin0      -> hThinIce
12       hihig       -> hThickIce
13       i0          -> i0swFrac
14       transCoef   -> bMeltCoef
15       frac_energy -> fracMelting
16      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
17       with default values (for now) that do not change the results.
18      remove old version of thsice vars advection in pkg/seaice.
19    o in FFIELDS.h:
20      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
21      - make pLoad & sIceLoad always available (but still only used if
22         ATMOSPHERIC_LOADING is #define).
23    o pkg/kpp: replaced _KPP_RL with _RL
24    o bug fixes for vertical diffusivity computations when both KPP and
25        3D diffusivity arrays are used.
26    o pkg/seaice: fix bug in evp solver, while doing that
27      - change (improve?) discretization of stress computations for both
28        cgrid-lsr and evp solver
29      - add a new routine to compute strain rates
30      - the above changes lab_sea results
31      - add no slip conditions for evp solver (off by default), lsr-version
32        may follow
33      - fix exchange for shear at Z-points (does not change lab_sea)
34      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
35        (to force the user to pick a time step since there is not "safe" way
36        of choosing it)
37      - add principal stress diagnostics
38      - rearrange fields for evp a little to avoid having to call a: too many
39        exchanges and b: exchanges for stress trensor components which we do
40        not have.
41      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
42        of evp, complete rewrite for lsr case (latter is does not yet work
43        in all cases)
44    o pkg/kpp: add code to have mixing in shelf ice caverns
45      - add myThid to all kpp routines (long overdue)
46    
47    checkpoint59
48    o pkg/exf:
49      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
50        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
51      - move exf header files from lower_case.h to UPPER_CASE.h ;
52        add missing cvs Header & Name
53      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
54      - add namelist param. selectStressGridPosition, exf_monFreq
55      - retire many _CLIM routines, and remove data.exf_clim
56        + params moved to data.exf
57        + climsst, climsss now handled by exf_set_gen, i.e.
58          climss?period=0 refers to constant field,
59          climss?period=-12 to monthly forcing
60      - split up namelists in data.exf
61    o pkg/seaice:
62      - remove seaice_exch and seaice_exch_uv
63      - remove superfluous exchange of theta
64      - add myThid to seaice_budget_ocean/ice
65      - add new interface for atmospheric wind forcing (C-grid only)
66        + new routine
67        + two new field (taux, tauy for stress over ice)
68        + removed one global field (DAIRN) for C-grid case only
69    o pkg/thsise
70      - 2nd set of modifs for thsice adjoint in conjunction with exf
71    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
72    
73    checkpoint58y_post
74    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
75      vertical diffusivity, similar to that in MOM4; turned on using
76      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
77      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
78    o Added capability for 3D specification of background vertical diffusion
79      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
80      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
81      "data" file that contains the 3D vertical diffusivity coefficients.
82    o ice dynamics (pkg/seaice) with thsice thermodynamics:
83      - add code within pkg thsice to advect & diffuse sea-ice fields
84      similar to (and will replace) what has been added in  seaice_advdiff.F,
85      but: - conserving Mass, Heat & Salt.
86           - better when using non-linear advection scheme (not yet fully tested)
87           - can also be used in atmospheric set-up (for now, only the diffusion).
88    
89    checkpoint58x_post
90    o IO option for global-file compact format:
91      - add options when generating topology (utils/exch2/matlab-topology-generator)
92      - add I/O capability (pkg/mdsio).
93      - adapt utils/matlab/rdmds.m to read this format.
94      for now long-line format not yet supported by pkg/mdsio (& exch2).
95    o shelfice: add a few diagnostics
96    
97    checkpoint58w_post
98    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
99      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
100      (and replace horiVertRatio in NH code).
101      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
102                         and tutorial_plume_on_slope (sensitive to truncation)
103    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
104      directly to drive seaice model (C-grid only)
105    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
106     - reintroduce computation of wind from stress,
107     - compute tau (in exf_bulkformulae.F) from windstress averaged to
108       mass points to avoid tau = 0
109     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
110    o rdmnc.m: make it work with "global" files created with gluemnc
111    o rdmnc.m : some improvements in dealing with singleton dimension
112      (tested on all testreport mnc output files).
113    o genmake2: disable pkg/profiles if netcdf test fails.
114    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
115    o move call to cal_readparms up to make calendar parameters/variable available
116      to all packages
117    
118    checkpoint58v_post
119    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
120      useDynP_inEos_Zc tested.
121    o pkg/exf: changes to properly interpolate/mask/scale initial fields
122    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
123      and portions thereof.  See read_cs.txt for description and examples.
124    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
125      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
126      following the great-circle arc between those 2 points.
127    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
128      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
129    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
130     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
131     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
132     - still needs work (not working with some options ; efficiency to improve)
133       and serious testing.
134     - use this scheme for temperature & salinity in 2 advection test exp.:
135       advect_xy & advect_xz, respectively.
136    
137    checkpoint58u_post
138    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
139    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
140    o testreport: add option "-skipdir" to skip some test.
141    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
142      momentum calculation.
143    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
144    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
145      remove checkpoint.F and the_correction_step.F (no longer used);
146      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
147    o add option (linFSConserveTr) to correct for tracer source/sink due to
148      Linear Free surface
149    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
150    o pkg/thsice: fix reading mnc-pickups
151    
152    checkpoint58t_post
153    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
154    o pkg/mdsio:
155     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
156       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
157       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
158     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
159     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
160       either MDS_READ_FIELD or MDS_WRITE_FIELD )
161     - new S/R (to replace MDSWRITEMETA), which allows to write more
162       informations (variable names, time ...) to meta files.
163     - modify rdmds.m to give back the meta file content.
164    o pkg/diagnostics: change vertical interpolation to be safer, and more
165       flexible (define p-levels to interpolate to in data.diagnostics);
166      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
167       diagnostic pointer.
168    o pkg/seaice: more cleaning up of seaice_growth, added many comments
169    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
170    o fix multi-category seaice:
171     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
172       SEAICE_MULTICATEGORY
173     - fix short wave heat flux
174    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
175       and allow to use EVP solver. Change forward lab_sea: test both EVP
176       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
177    o Initial check-in of lab_sea adjoint
178      (very similar to natl_box_adjoint/code_seaice)
179      * used C-grid and EVP solver
180      * used KPP, GM/Redi
181      * uses inAdExact=.TRUE.
182      * gradient checks fail for both ADM and TLM
183        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
184        f.d. gradients actually seem more problematic than ADM, TLM gradients;
185        issue is related to forward mismatch between g77 an ifort
186    o pkg/seaice: overhaul of thermodynamics
187     - growth.F and groatb.F are replaced by new routine seaice_growth.F
188     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
189     - move a few global fields out of SEAICE.h into seaice_growth.F and
190       make them 2D (FICE/QNETO/ ...)
191     - remove FO (it is the same as QNETO)
192     - introduce a few local fields to avoid modifying external fields such
193       as atemp, etc.
194    
195    checkpoint58s_post
196    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
197      changed exf_set_gen.F so that
198        genperiod=0 means input file is one time-constant field and
199        genperiod=-12 means input file contains 12 monthly means
200    o CG2D: use pre-computed solver main-diagonal (stored in common block);
201      this affects truncation error ; generate new output file for exp. which
202      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
203        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
204        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
205        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
206        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
207        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
208    o start implementation of deep-atmosphere and anelastic formulation
209    o verification: remove 2nd copy of input files and use script "prepare_run"
210      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
211    o mom_common/vecinv/fluxform: fix a few initialisation isssues
212    o profiles: fix for multithreaded case
213    
214    o diagnostics: rename few diags:
215      s/'PRESSURE'/'RCENTER '/g
216      s/'TICE    '/'oceFreez'/g
217      s/'TAUX    '/'oceTAUX '/g
218      s/'TAUY    '/'oceTAUY '/g
219      s/'SWFLUX  '/'oceQsw  '/g
220      s/DIFx/DFxE/g
221      s/DIFy/DFyE/g
222      and add few ocean-forcing diagnostics:
223      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
224    o modifications to pkg/seaice/growth.F and budget.F, which change results of
225      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
226      as actual snow thickness.  It now refers everywhere to effective snow
227      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
228    
229    checkpoint58r_post
230    o modifications to pkg/seaice/growth.F, which change results of
231      lab_sea experiment: fixes pertain to melting snow over open water, to
232      masking EVAP under sea ice, and to using the correct AREA variable for
233      computations of EVAP, PRECIP, HSNOW, and GHEFF
234    o add ability to read bathy, salt, and theta using MNC (off by def)
235    o add flooding algorithm and advection of HSNOW for pkg/seaice;
236      both are turned off by default and do no change any results
237    o seaice advection with pkg/thsice: a step toward the use of non-linear
238      advection scheme, but #ifdef or commented out for now (requires more EXCH).
239    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
240      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
241      in natl_box (affects results @ truncation level: update output.txt)
242    o multi-threading and IO:
243      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
244      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
245        (needed to work with SingleCpuIO): tested in all verif. exp.
246    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
247      affects the results (but none of the verification test uses this scheme).
248    o Adding some pkg/diagnostics capability to pkg/seaice
249      (will certainly be subject to changes)
250    o ctrl: adding new control variables:
251      lwflux, lwdown, evap, snowprecip, apressure, runoff
252    
253    checkpoint58q_post
254    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
255      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
256      high_res_cube configuration by 4% on Columbia.
257    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
258      add (in global_with_exf/code) a version of EXF_INTERP_READ without
259      dynamical allocation (seems to work in multi-threaded).
260    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
261      single CPU io) so that TAF does not have to see EESUPPORT.h
262    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
263    
264    checkpoint58p_post
265    o obcs: stop if obcs is used with useCDscheme = .true.
266    o shelfice:
267     - fix a sign error so that no slip at shelfice interface works
268     - remove stop for combination non-hydrostatic code and shelfice. That does
269       not mean, that the results are correct, but at least they are numerically
270       stable
271    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
272    o added adjoint exch routined for all exch*3d* routines
273      and updated flow directives
274    
275    checkpoint58o_post
276    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
277      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
278    o change controling S/R for writing pickup file (new S/R do_write_pickup)
279      and clean-up reading/writing of pickup files.
280    o fix local version of read/write pickup (NH part) in rotating_tank/code
281    o simplify EXCH interface:
282     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
283     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
284    o added the regrid package
285    o shelfice:
286     - add a simple boundary layer scheme to reduce noise
287     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
288    
289  checkpoint58n_post  checkpoint58n_post
290  o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to  o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
291     local variable (not in common block).     local variable (not in common block).

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