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revision 1.754 by mlosch, Thu Dec 14 08:23:13 2006 UTC revision 1.858 by jmc, Thu Aug 16 02:34:16 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/generic_advdiff:
8     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
9      loop range indices for computing vertical advection tendency
10      and do the calculation in the interior only (no overlap) ;
11      for now, only implemented for SOM advection (to save CPU time).
12     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
13    o exch2 adjoint
14      First set of changes:
15      - add exch2 hand-written adjoint templates
16      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
17        This will require cleanup in pkg/autodiff/*.F
18        (changed routines currently kept separate in verif. code/)
19      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
20        that used to hide exch2 or cubed-sphere specific code
21        (commented via 'cph-exch2')
22    o pkg/seaice
23      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
24    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
25       output of global_ocean.cs32x15.thsice .
26    
27    checkpoint59e
28    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
29      for B-grid vector (not yet tested) and C-grid vector (<- only used
30      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
31    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
32      (#ifdef ALLOW_SALT_PLUME)
33    o gather_2d/scatter_2d: removed halo regions
34    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
35      scheme and the corresponding test case (under front_relax dir). For now,
36      only available with Skew-flux form and not yet tested in realistic set-up.
37      adjoint: store directives updated, but gradient checks deteriorated,
38      so maybe GM/Redi adjoint is now broken.
39    o seaice adjoint
40      * add AREA, HEFF, HSNOW as control variable
41        (should not change lab_sea results)
42      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
43    o pkg/seaice:
44      * added computation of saltFlux in seaice_growth;
45        For time being, sea ice salinity is assumed constant
46        contribution of snow flooding to freshening of sea ice is neglected.
47        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
48        defaults to 0.0 in order to maintain backward compatibility.
49        Typical values for SEAICE_salinity are 4 to 10 g/kg.
50      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
51      * added SEAICE_availHeatFrac, which specifies fraction of surface level
52        heat content used to melt or grow ice
53      * commented out cap of HICE: it helps keep ice thinner
54      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
55      * applied OBCS T/S mask to HEFFM sea ice mask
56    
57    checkpoint59d
58    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
59     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
60     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
61    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
62     and change default value of parameter "GM_Small_Number";
63     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
64       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
65       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
66    o pkg/ecco: cost function when applying pkg/smooth to controls
67    o pkg/ctrl: add forcingPrecond run time parameter
68    o pkg/seaice:
69     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
70     - fix bug in metric terms of u-equation in LSR solver (implicit part),
71       changes verification/lab_sea
72     - rearrange implicit part of u-equation in LSR solver to make it easier to
73       read, understand, and debug. This causes changes at the truncation level.
74     - fix (serious) bug in the boundary conditions (sign error in the implicit
75       part) of the LSR solver. Changes all LSR results.
76     - fixed problem with HSNOW initialization to avoid thick snow when AREA
77       is initilized with small values - does not change lab_sea results.
78     - added HsnowFile initialization capability
79    o pkg/smooth: addition to model/src and pkg/ctrl so allow
80     initialization of pkg/smooth and application to control vector
81    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
82    o dependencies: pkg/profiles requires pkg/cal
83    o pkg/profiles:
84     - added option ALLOW_PROFILES_GENERICGRID
85         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
86         that interpolation information (grid points and coefficients) is provided
87         within the netcdf input files.
88         -> sample matlab scripts can be found in MITgcm_contrib/gael
89         that allow you to prepare netcdf input files.
90     - also modified: cleaner include statements, cleaner error print statements,
91       cleaner stops when error, and more tests of the netcdf input files consistency.
92    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
93    o pkg/seaice:
94     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
95       requires a new routine: seaice_diagnostics_fill.F
96     - make sure that seaice does not move if not forced (pressure replacement
97       method, Hibler and Ip, 1995), changes results
98     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
99     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
100       It is turned off by default (=-1.), because it changes the results.
101     - make it possible to read AREA from a file, too.
102    
103    checkpoint59c
104    o add S/R and diagnostics for oceanic mixed-layer depth
105    o move GMRedi call after all vertical mixing schemes (including KPP)
106    o pkg/thsice:
107     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
108      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
109    o pkg/obcs:
110     - bug fix for balance code
111    o pkg/seaice:
112      - allow values of SEAICE_elasticParm > 1
113      - add new parameter SEAICE_evpTauRelax as an alternative
114        to SEAICE_elasticParm
115      - make lsr boundary conditions free slip (by default), changes result
116      - add code for no slip boundary conditions for lsr
117      - set minimum of zeta to zero (and not 4e8) (changes results)
118      - add a cap on AREA after advecting AREA if seaice_growth is not called
119    o change calculation of Visbeck K:
120      - no longer depend on tapering scheme; instead, compute slope (limited
121        by GM_maxSlope). this is equivalent to what was comuted before with
122        clipping or linear tappering.
123      - fix vertical averaging (wrong by 1/2 level)
124      - leave the old version (but will not be maintained) within
125        #ifdef OLD_VISBECK_CALC / #endif
126      - update output of exp. ideal_2D_oce
127    o change error catch in calc_r_star to improve vectorization
128    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
129      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
130    o adjoint:
131      Re-organized adjoint checkpointing according to Matt Mazloff
132      (but with modifs/completions/cleanups)
133      Storing is now bundled into large arrays to optimized I/O
134      (and second step in cleanup of the_main_loop)
135    
136    checkpoint59b
137    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
138      - export/import (between ocean & coupler) fields needed for ocean DIC.
139    o pkg/seaice:
140      - get rid of three more exchanges seaice_calc_viscosities (required
141        different loop boundaries in seaice_lsr and seaice_ocean_stress)
142      - bug fix in seaice_ocean_stress (update of lab_sea required)
143      - reduce loop boundaries to necessary minimum also in seaice_evp
144      - go back to the old way of computing deltaC/Z as the adjoint likes that
145        better
146    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
147      passive tracer to an Age Tracer) + update output.txt
148    o pkg/exf:
149      - implement A-grid / C-grid selection for wind-stress input files.
150      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
151      for now, in exf_bulk_largeyeager04.F only :
152      - change implementation for case where windspeed + 2. components wind-stress
153        are read-in. AND use rhoConstFresh to convert evap.
154    o pkg/seaice:
155      - use correct EXCH_UV for wind-forcing (on A-grid).
156      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
157        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
158    o pkg/exf:
159      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
160      EXF_INTERPOLATION:
161      - merge global_with_exf/code version of exf_interp_read.F
162        to the main code ;
163      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
164        reading the file ; Important: This options needs to be defined to recover
165        previous code.
166        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
167      - no longer loose real*8 precision along the way when using exf_iprec=64.
168    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
169      - change discretisation of evp-solver in order to avoid another exchange
170        (changes lab_sea) and clean up a little
171      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
172        help the adjoint (this also changes the results slightly)
173      - add a few "_d 0" where they had been missing in seaice_evp.F
174      - cleaning up: remove unused seaice_calc_rhs.F
175    o pkg/exf: some cleaning-up:
176      - change various "constants" into runtime parameters
177      - cleaned-up Large&Yeager04 routine which should eventually
178        replace exf_bulkformulae.F (changed names of S/R and CPP)
179        and merged various ALLOW_ATM_WIND options
180     only used with thsice pkg (in thsice_get_exf.F):
181      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
182        which are used when useStabilityFct_overIce=TRUE (= the default)
183      - change default values of ice & snow emissivity and scale downward LW
184        by ice & snow emissivity.
185    o pkg/thsice:
186     fix few little problems, in thsice_calc_thickn.F:
187      - growth vertically (and not laterally) if iceFrac == iceMaskMax
188      - melt only laterally if hIce < hThinIce (as the comments say)
189      and in thsice_extend.F:
190      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
191      - start to form ice as soon as the minimum ice-volume is reachable.
192     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
193      and cpl_aim+ocn
194    o pkg/kpp
195     - move computation of surface related input fields to KPP into a new
196       subroutine kpp_forcing_surf.F
197     - remove wrong (within bi,bj loops) EXCH calls.
198     - little cleaning (add argument myThid in last position, cvs header ...)
199     - for now, fix conservation problem by exchanging KPPviscAz (may not
200       be the best fix)
201    o pkg/seaice
202     - check for inconsistent evp parameter/cpp-flag combination
203     - remove leftover errIO flat for obsolete name list error handling
204    o OpenAD
205     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
206    
207    checkpoint59a
208    o pkg/seaice: some parameter clarifications and a little bit of clean up
209    o pkg/thsice: rename run-time parameters:
210       himin       -> hIceMin
211       himin0      -> hThinIce
212       hihig       -> hThickIce
213       i0          -> i0swFrac
214       transCoef   -> bMeltCoef
215       frac_energy -> fracMelting
216      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
217       with default values (for now) that do not change the results.
218      remove old version of thsice vars advection in pkg/seaice.
219    o in FFIELDS.h:
220      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
221      - make pLoad & sIceLoad always available (but still only used if
222         ATMOSPHERIC_LOADING is #define).
223    o pkg/kpp: replaced _KPP_RL with _RL
224    o bug fixes for vertical diffusivity computations when both KPP and
225        3D diffusivity arrays are used.
226    o pkg/seaice: fix bug in evp solver, while doing that
227      - change (improve?) discretization of stress computations for both
228        cgrid-lsr and evp solver
229      - add a new routine to compute strain rates
230      - the above changes lab_sea results
231      - add no slip conditions for evp solver (off by default), lsr-version
232        may follow
233      - fix exchange for shear at Z-points (does not change lab_sea)
234      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
235        (to force the user to pick a time step since there is not "safe" way
236        of choosing it)
237      - add principal stress diagnostics
238      - rearrange fields for evp a little to avoid having to call a: too many
239        exchanges and b: exchanges for stress trensor components which we do
240        not have.
241      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
242        of evp, complete rewrite for lsr case (latter is does not yet work
243        in all cases)
244    o pkg/kpp: add code to have mixing in shelf ice caverns
245      - add myThid to all kpp routines (long overdue)
246    
247    checkpoint59
248    o pkg/exf:
249      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
250        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
251      - move exf header files from lower_case.h to UPPER_CASE.h ;
252        add missing cvs Header & Name
253      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
254      - add namelist param. selectStressGridPosition, exf_monFreq
255      - retire many _CLIM routines, and remove data.exf_clim
256        + params moved to data.exf
257        + climsst, climsss now handled by exf_set_gen, i.e.
258          climss?period=0 refers to constant field,
259          climss?period=-12 to monthly forcing
260      - split up namelists in data.exf
261    o pkg/seaice:
262      - remove seaice_exch and seaice_exch_uv
263      - remove superfluous exchange of theta
264      - add myThid to seaice_budget_ocean/ice
265      - add new interface for atmospheric wind forcing (C-grid only)
266        + new routine
267        + two new field (taux, tauy for stress over ice)
268        + removed one global field (DAIRN) for C-grid case only
269    o pkg/thsise
270      - 2nd set of modifs for thsice adjoint in conjunction with exf
271    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
272    
273    checkpoint58y_post
274    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
275      vertical diffusivity, similar to that in MOM4; turned on using
276      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
277      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
278    o Added capability for 3D specification of background vertical diffusion
279      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
280      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
281      "data" file that contains the 3D vertical diffusivity coefficients.
282    o ice dynamics (pkg/seaice) with thsice thermodynamics:
283      - add code within pkg thsice to advect & diffuse sea-ice fields
284      similar to (and will replace) what has been added in  seaice_advdiff.F,
285      but: - conserving Mass, Heat & Salt.
286           - better when using non-linear advection scheme (not yet fully tested)
287           - can also be used in atmospheric set-up (for now, only the diffusion).
288    
289    checkpoint58x_post
290    o IO option for global-file compact format:
291      - add options when generating topology (utils/exch2/matlab-topology-generator)
292      - add I/O capability (pkg/mdsio).
293      - adapt utils/matlab/rdmds.m to read this format.
294      for now long-line format not yet supported by pkg/mdsio (& exch2).
295    o shelfice: add a few diagnostics
296    
297    checkpoint58w_post
298    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
299      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
300      (and replace horiVertRatio in NH code).
301      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
302                         and tutorial_plume_on_slope (sensitive to truncation)
303    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
304      directly to drive seaice model (C-grid only)
305    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
306     - reintroduce computation of wind from stress,
307     - compute tau (in exf_bulkformulae.F) from windstress averaged to
308       mass points to avoid tau = 0
309     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
310    o rdmnc.m: make it work with "global" files created with gluemnc
311    o rdmnc.m : some improvements in dealing with singleton dimension
312      (tested on all testreport mnc output files).
313    o genmake2: disable pkg/profiles if netcdf test fails.
314    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
315    o move call to cal_readparms up to make calendar parameters/variable available
316      to all packages
317    
318    checkpoint58v_post
319    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
320      useDynP_inEos_Zc tested.
321    o pkg/exf: changes to properly interpolate/mask/scale initial fields
322    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
323      and portions thereof.  See read_cs.txt for description and examples.
324    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
325      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
326      following the great-circle arc between those 2 points.
327    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
328      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
329    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
330     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
331     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
332     - still needs work (not working with some options ; efficiency to improve)
333       and serious testing.
334     - use this scheme for temperature & salinity in 2 advection test exp.:
335       advect_xy & advect_xz, respectively.
336    
337    checkpoint58u_post
338    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
339    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
340    o testreport: add option "-skipdir" to skip some test.
341    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
342      momentum calculation.
343    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
344    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
345      remove checkpoint.F and the_correction_step.F (no longer used);
346      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
347    o add option (linFSConserveTr) to correct for tracer source/sink due to
348      Linear Free surface
349    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
350    o pkg/thsice: fix reading mnc-pickups
351    
352    checkpoint58t_post
353    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
354    o pkg/mdsio:
355     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
356       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
357       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
358     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
359     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
360       either MDS_READ_FIELD or MDS_WRITE_FIELD )
361     - new S/R (to replace MDSWRITEMETA), which allows to write more
362       informations (variable names, time ...) to meta files.
363     - modify rdmds.m to give back the meta file content.
364    o pkg/diagnostics: change vertical interpolation to be safer, and more
365       flexible (define p-levels to interpolate to in data.diagnostics);
366      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
367       diagnostic pointer.
368    o pkg/seaice: more cleaning up of seaice_growth, added many comments
369    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
370    o fix multi-category seaice:
371     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
372       SEAICE_MULTICATEGORY
373     - fix short wave heat flux
374    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
375       and allow to use EVP solver. Change forward lab_sea: test both EVP
376       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
377    o Initial check-in of lab_sea adjoint
378      (very similar to natl_box_adjoint/code_seaice)
379      * used C-grid and EVP solver
380      * used KPP, GM/Redi
381      * uses inAdExact=.TRUE.
382      * gradient checks fail for both ADM and TLM
383        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
384        f.d. gradients actually seem more problematic than ADM, TLM gradients;
385        issue is related to forward mismatch between g77 an ifort
386    o pkg/seaice: overhaul of thermodynamics
387     - growth.F and groatb.F are replaced by new routine seaice_growth.F
388     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
389     - move a few global fields out of SEAICE.h into seaice_growth.F and
390       make them 2D (FICE/QNETO/ ...)
391     - remove FO (it is the same as QNETO)
392     - introduce a few local fields to avoid modifying external fields such
393       as atemp, etc.
394    
395  checkpoint58s_post  checkpoint58s_post
396  o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F  o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
397    changed exf_set_gen.F so that    changed exf_set_gen.F so that

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