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revision 1.751 by jmc, Tue Dec 5 05:32:59 2006 UTC revision 1.850 by dimitri, Wed Jul 18 22:53:34 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 gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
8      scheme and the corresponding test case (under front_relax dir). For now,
9      only available with Skew-flux form and not yet tested in realistic set-up.
10      adjoint: store directives updated, but gradient checks deteriorated,
11      so maybe GM/Redi adjoint is now broken.
12    o seaice adjoint
13      * add AREA, HEFF, HSNOW as control variable
14        (should not change lab_sea results)
15      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
16    o pkg/seaice:
17      * added computation of saltFlux in seaice_growth;
18        For time being, sea ice salinity is assumed constant
19        contribution of snow flooding to freshening of sea ice is neglected.
20        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
21        defaults to 0.0 in order to maintain backward compatibility.
22        Typical values for SEAICE_salinity are 4 to 10 g/kg.
23      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
24      * added SEAICE_availHeatFrac, which specifies fraction of surface level
25        heat content used to melt or grow ice
26      * commented out cap of HICE: it helps keep ice thinner
27      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
28      * applied OBCS T/S mask to HEFFM sea ice mask
29    
30    checkpoint59d
31    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
32     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
33     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
34    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
35     and change default value of parameter "GM_Small_Number";
36     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
37       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
38       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
39    o pkg/ecco: cost function when applying pkg/smooth to controls
40    o pkg/ctrl: add forcingPrecond run time parameter
41    o pkg/seaice:
42     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
43     - fix bug in metric terms of u-equation in LSR solver (implicit part),
44       changes verification/lab_sea
45     - rearrange implicit part of u-equation in LSR solver to make it easier to
46       read, understand, and debug. This causes changes at the truncation level.
47     - fix (serious) bug in the boundary conditions (sign error in the implicit
48       part) of the LSR solver. Changes all LSR results.
49     - fixed problem with HSNOW initialization to avoid thick snow when AREA
50       is initilized with small values - does not change lab_sea results.
51     - added HsnowFile initialization capability
52    o pkg/smooth: addition to model/src and pkg/ctrl so allow
53     initialization of pkg/smooth and application to control vector
54    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
55    o dependencies: pkg/profiles requires pkg/cal
56    o pkg/profiles:
57     - added option ALLOW_PROFILES_GENERICGRID
58         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
59         that interpolation information (grid points and coefficients) is provided
60         within the netcdf input files.
61         -> sample matlab scripts can be found in MITgcm_contrib/gael
62         that allow you to prepare netcdf input files.
63     - also modified: cleaner include statements, cleaner error print statements,
64       cleaner stops when error, and more tests of the netcdf input files consistency.
65    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
66    o pkg/seaice:
67     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
68       requires a new routine: seaice_diagnostics_fill.F
69     - make sure that seaice does not move if not forced (pressure replacement
70       method, Hibler and Ip, 1995), changes results
71     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
72     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
73       It is turned off by default (=-1.), because it changes the results.
74     - make it possible to read AREA from a file, too.
75    
76    checkpoint59c
77    o add S/R and diagnostics for oceanic mixed-layer depth
78    o move GMRedi call after all vertical mixing schemes (including KPP)
79    o pkg/thsice:
80     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
81      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
82    o pkg/obcs:
83     - bug fix for balance code
84    o pkg/seaice:
85      - allow values of SEAICE_elasticParm > 1
86      - add new parameter SEAICE_evpTauRelax as an alternative
87        to SEAICE_elasticParm
88      - make lsr boundary conditions free slip (by default), changes result
89      - add code for no slip boundary conditions for lsr
90      - set minimum of zeta to zero (and not 4e8) (changes results)
91      - add a cap on AREA after advecting AREA if seaice_growth is not called
92    o change calculation of Visbeck K:
93      - no longer depend on tapering scheme; instead, compute slope (limited
94        by GM_maxSlope). this is equivalent to what was comuted before with
95        clipping or linear tappering.
96      - fix vertical averaging (wrong by 1/2 level)
97      - leave the old version (but will not be maintained) within
98        #ifdef OLD_VISBECK_CALC / #endif
99      - update output of exp. ideal_2D_oce
100    o change error catch in calc_r_star to improve vectorization
101    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
102      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
103    o adjoint:
104      Re-organized adjoint checkpointing according to Matt Mazloff
105      (but with modifs/completions/cleanups)
106      Storing is now bundled into large arrays to optimized I/O
107      (and second step in cleanup of the_main_loop)
108    
109    checkpoint59b
110    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
111      - export/import (between ocean & coupler) fields needed for ocean DIC.
112    o pkg/seaice:
113      - get rid of three more exchanges seaice_calc_viscosities (required
114        different loop boundaries in seaice_lsr and seaice_ocean_stress)
115      - bug fix in seaice_ocean_stress (update of lab_sea required)
116      - reduce loop boundaries to necessary minimum also in seaice_evp
117      - go back to the old way of computing deltaC/Z as the adjoint likes that
118        better
119    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
120      passive tracer to an Age Tracer) + update output.txt
121    o pkg/exf:
122      - implement A-grid / C-grid selection for wind-stress input files.
123      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
124      for now, in exf_bulk_largeyeager04.F only :
125      - change implementation for case where windspeed + 2. components wind-stress
126        are read-in. AND use rhoConstFresh to convert evap.
127    o pkg/seaice:
128      - use correct EXCH_UV for wind-forcing (on A-grid).
129      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
130        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
131    o pkg/exf:
132      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
133      EXF_INTERPOLATION:
134      - merge global_with_exf/code version of exf_interp_read.F
135        to the main code ;
136      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
137        reading the file ; Important: This options needs to be defined to recover
138        previous code.
139        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
140      - no longer loose real*8 precision along the way when using exf_iprec=64.
141    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
142      - change discretisation of evp-solver in order to avoid another exchange
143        (changes lab_sea) and clean up a little
144      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
145        help the adjoint (this also changes the results slightly)
146      - add a few "_d 0" where they had been missing in seaice_evp.F
147      - cleaning up: remove unused seaice_calc_rhs.F
148    o pkg/exf: some cleaning-up:
149      - change various "constants" into runtime parameters
150      - cleaned-up Large&Yeager04 routine which should eventually
151        replace exf_bulkformulae.F (changed names of S/R and CPP)
152        and merged various ALLOW_ATM_WIND options
153     only used with thsice pkg (in thsice_get_exf.F):
154      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
155        which are used when useStabilityFct_overIce=TRUE (= the default)
156      - change default values of ice & snow emissivity and scale downward LW
157        by ice & snow emissivity.
158    o pkg/thsice:
159     fix few little problems, in thsice_calc_thickn.F:
160      - growth vertically (and not laterally) if iceFrac == iceMaskMax
161      - melt only laterally if hIce < hThinIce (as the comments say)
162      and in thsice_extend.F:
163      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
164      - start to form ice as soon as the minimum ice-volume is reachable.
165     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
166      and cpl_aim+ocn
167    o pkg/kpp
168     - move computation of surface related input fields to KPP into a new
169       subroutine kpp_forcing_surf.F
170     - remove wrong (within bi,bj loops) EXCH calls.
171     - little cleaning (add argument myThid in last position, cvs header ...)
172     - for now, fix conservation problem by exchanging KPPviscAz (may not
173       be the best fix)
174    o pkg/seaice
175     - check for inconsistent evp parameter/cpp-flag combination
176     - remove leftover errIO flat for obsolete name list error handling
177    o OpenAD
178     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
179    
180    checkpoint59a
181    o pkg/seaice: some parameter clarifications and a little bit of clean up
182    o pkg/thsice: rename run-time parameters:
183       himin       -> hIceMin
184       himin0      -> hThinIce
185       hihig       -> hThickIce
186       i0          -> i0swFrac
187       transCoef   -> bMeltCoef
188       frac_energy -> fracMelting
189      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
190       with default values (for now) that do not change the results.
191      remove old version of thsice vars advection in pkg/seaice.
192    o in FFIELDS.h:
193      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
194      - make pLoad & sIceLoad always available (but still only used if
195         ATMOSPHERIC_LOADING is #define).
196    o pkg/kpp: replaced _KPP_RL with _RL
197    o bug fixes for vertical diffusivity computations when both KPP and
198        3D diffusivity arrays are used.
199    o pkg/seaice: fix bug in evp solver, while doing that
200      - change (improve?) discretization of stress computations for both
201        cgrid-lsr and evp solver
202      - add a new routine to compute strain rates
203      - the above changes lab_sea results
204      - add no slip conditions for evp solver (off by default), lsr-version
205        may follow
206      - fix exchange for shear at Z-points (does not change lab_sea)
207      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
208        (to force the user to pick a time step since there is not "safe" way
209        of choosing it)
210      - add principal stress diagnostics
211      - rearrange fields for evp a little to avoid having to call a: too many
212        exchanges and b: exchanges for stress trensor components which we do
213        not have.
214      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
215        of evp, complete rewrite for lsr case (latter is does not yet work
216        in all cases)
217    o pkg/kpp: add code to have mixing in shelf ice caverns
218      - add myThid to all kpp routines (long overdue)
219    
220    checkpoint59
221    o pkg/exf:
222      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
223        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
224      - move exf header files from lower_case.h to UPPER_CASE.h ;
225        add missing cvs Header & Name
226      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
227      - add namelist param. selectStressGridPosition, exf_monFreq
228      - retire many _CLIM routines, and remove data.exf_clim
229        + params moved to data.exf
230        + climsst, climsss now handled by exf_set_gen, i.e.
231          climss?period=0 refers to constant field,
232          climss?period=-12 to monthly forcing
233      - split up namelists in data.exf
234    o pkg/seaice:
235      - remove seaice_exch and seaice_exch_uv
236      - remove superfluous exchange of theta
237      - add myThid to seaice_budget_ocean/ice
238      - add new interface for atmospheric wind forcing (C-grid only)
239        + new routine
240        + two new field (taux, tauy for stress over ice)
241        + removed one global field (DAIRN) for C-grid case only
242    o pkg/thsise
243      - 2nd set of modifs for thsice adjoint in conjunction with exf
244    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
245    
246    checkpoint58y_post
247    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
248      vertical diffusivity, similar to that in MOM4; turned on using
249      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
250      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
251    o Added capability for 3D specification of background vertical diffusion
252      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
253      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
254      "data" file that contains the 3D vertical diffusivity coefficients.
255    o ice dynamics (pkg/seaice) with thsice thermodynamics:
256      - add code within pkg thsice to advect & diffuse sea-ice fields
257      similar to (and will replace) what has been added in  seaice_advdiff.F,
258      but: - conserving Mass, Heat & Salt.
259           - better when using non-linear advection scheme (not yet fully tested)
260           - can also be used in atmospheric set-up (for now, only the diffusion).
261    
262    checkpoint58x_post
263    o IO option for global-file compact format:
264      - add options when generating topology (utils/exch2/matlab-topology-generator)
265      - add I/O capability (pkg/mdsio).
266      - adapt utils/matlab/rdmds.m to read this format.
267      for now long-line format not yet supported by pkg/mdsio (& exch2).
268    o shelfice: add a few diagnostics
269    
270    checkpoint58w_post
271    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
272      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
273      (and replace horiVertRatio in NH code).
274      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
275                         and tutorial_plume_on_slope (sensitive to truncation)
276    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
277      directly to drive seaice model (C-grid only)
278    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
279     - reintroduce computation of wind from stress,
280     - compute tau (in exf_bulkformulae.F) from windstress averaged to
281       mass points to avoid tau = 0
282     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
283    o rdmnc.m: make it work with "global" files created with gluemnc
284    o rdmnc.m : some improvements in dealing with singleton dimension
285      (tested on all testreport mnc output files).
286    o genmake2: disable pkg/profiles if netcdf test fails.
287    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
288    o move call to cal_readparms up to make calendar parameters/variable available
289      to all packages
290    
291    checkpoint58v_post
292    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
293      useDynP_inEos_Zc tested.
294    o pkg/exf: changes to properly interpolate/mask/scale initial fields
295    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
296      and portions thereof.  See read_cs.txt for description and examples.
297    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
298      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
299      following the great-circle arc between those 2 points.
300    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
301      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
302    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
303     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
304     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
305     - still needs work (not working with some options ; efficiency to improve)
306       and serious testing.
307     - use this scheme for temperature & salinity in 2 advection test exp.:
308       advect_xy & advect_xz, respectively.
309    
310    checkpoint58u_post
311    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
312    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
313    o testreport: add option "-skipdir" to skip some test.
314    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
315      momentum calculation.
316    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
317    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
318      remove checkpoint.F and the_correction_step.F (no longer used);
319      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
320    o add option (linFSConserveTr) to correct for tracer source/sink due to
321      Linear Free surface
322    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
323    o pkg/thsice: fix reading mnc-pickups
324    
325    checkpoint58t_post
326    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
327    o pkg/mdsio:
328     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
329       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
330       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
331     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
332     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
333       either MDS_READ_FIELD or MDS_WRITE_FIELD )
334     - new S/R (to replace MDSWRITEMETA), which allows to write more
335       informations (variable names, time ...) to meta files.
336     - modify rdmds.m to give back the meta file content.
337    o pkg/diagnostics: change vertical interpolation to be safer, and more
338       flexible (define p-levels to interpolate to in data.diagnostics);
339      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
340       diagnostic pointer.
341    o pkg/seaice: more cleaning up of seaice_growth, added many comments
342    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
343    o fix multi-category seaice:
344     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
345       SEAICE_MULTICATEGORY
346     - fix short wave heat flux
347    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
348       and allow to use EVP solver. Change forward lab_sea: test both EVP
349       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
350    o Initial check-in of lab_sea adjoint
351      (very similar to natl_box_adjoint/code_seaice)
352      * used C-grid and EVP solver
353      * used KPP, GM/Redi
354      * uses inAdExact=.TRUE.
355      * gradient checks fail for both ADM and TLM
356        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
357        f.d. gradients actually seem more problematic than ADM, TLM gradients;
358        issue is related to forward mismatch between g77 an ifort
359    o pkg/seaice: overhaul of thermodynamics
360     - growth.F and groatb.F are replaced by new routine seaice_growth.F
361     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
362     - move a few global fields out of SEAICE.h into seaice_growth.F and
363       make them 2D (FICE/QNETO/ ...)
364     - remove FO (it is the same as QNETO)
365     - introduce a few local fields to avoid modifying external fields such
366       as atemp, etc.
367    
368    checkpoint58s_post
369    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
370      changed exf_set_gen.F so that
371        genperiod=0 means input file is one time-constant field and
372        genperiod=-12 means input file contains 12 monthly means
373    o CG2D: use pre-computed solver main-diagonal (stored in common block);
374      this affects truncation error ; generate new output file for exp. which
375      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
376        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
377        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
378        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
379        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
380        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
381  o start implementation of deep-atmosphere and anelastic formulation  o start implementation of deep-atmosphere and anelastic formulation
382  o verification: remove 2nd copy of input files and use script "prepare_run"  o verification: remove 2nd copy of input files and use script "prepare_run"
383    to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)    to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)

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