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revision 1.757 by mlosch, Wed Dec 20 12:27:02 2006 UTC revision 1.857 by jmc, Mon Aug 6 21:44:50 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 exch2 adjoint
8      First set of changes:
9      - add exch2 hand-written adjoint templates
10      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
11        This will require cleanup in pkg/autodiff/*.F
12        (changed routines currently kept separate in verif. code/)
13      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
14        that used to hide exch2 or cubed-sphere specific code
15        (commented via 'cph-exch2')
16    o pkg/seaice
17      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
18    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
19       output of global_ocean.cs32x15.thsice .
20    
21    checkpoint59e
22    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
23      for B-grid vector (not yet tested) and C-grid vector (<- only used
24      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
25    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
26      (#ifdef ALLOW_SALT_PLUME)
27    o gather_2d/scatter_2d: removed halo regions
28    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
29      scheme and the corresponding test case (under front_relax dir). For now,
30      only available with Skew-flux form and not yet tested in realistic set-up.
31      adjoint: store directives updated, but gradient checks deteriorated,
32      so maybe GM/Redi adjoint is now broken.
33    o seaice adjoint
34      * add AREA, HEFF, HSNOW as control variable
35        (should not change lab_sea results)
36      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
37    o pkg/seaice:
38      * added computation of saltFlux in seaice_growth;
39        For time being, sea ice salinity is assumed constant
40        contribution of snow flooding to freshening of sea ice is neglected.
41        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
42        defaults to 0.0 in order to maintain backward compatibility.
43        Typical values for SEAICE_salinity are 4 to 10 g/kg.
44      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
45      * added SEAICE_availHeatFrac, which specifies fraction of surface level
46        heat content used to melt or grow ice
47      * commented out cap of HICE: it helps keep ice thinner
48      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
49      * applied OBCS T/S mask to HEFFM sea ice mask
50    
51    checkpoint59d
52    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
53     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
54     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
55    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
56     and change default value of parameter "GM_Small_Number";
57     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
58       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
59       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
60    o pkg/ecco: cost function when applying pkg/smooth to controls
61    o pkg/ctrl: add forcingPrecond run time parameter
62    o pkg/seaice:
63     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
64     - fix bug in metric terms of u-equation in LSR solver (implicit part),
65       changes verification/lab_sea
66     - rearrange implicit part of u-equation in LSR solver to make it easier to
67       read, understand, and debug. This causes changes at the truncation level.
68     - fix (serious) bug in the boundary conditions (sign error in the implicit
69       part) of the LSR solver. Changes all LSR results.
70     - fixed problem with HSNOW initialization to avoid thick snow when AREA
71       is initilized with small values - does not change lab_sea results.
72     - added HsnowFile initialization capability
73    o pkg/smooth: addition to model/src and pkg/ctrl so allow
74     initialization of pkg/smooth and application to control vector
75    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
76    o dependencies: pkg/profiles requires pkg/cal
77    o pkg/profiles:
78     - added option ALLOW_PROFILES_GENERICGRID
79         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
80         that interpolation information (grid points and coefficients) is provided
81         within the netcdf input files.
82         -> sample matlab scripts can be found in MITgcm_contrib/gael
83         that allow you to prepare netcdf input files.
84     - also modified: cleaner include statements, cleaner error print statements,
85       cleaner stops when error, and more tests of the netcdf input files consistency.
86    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
87    o pkg/seaice:
88     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
89       requires a new routine: seaice_diagnostics_fill.F
90     - make sure that seaice does not move if not forced (pressure replacement
91       method, Hibler and Ip, 1995), changes results
92     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
93     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
94       It is turned off by default (=-1.), because it changes the results.
95     - make it possible to read AREA from a file, too.
96    
97    checkpoint59c
98    o add S/R and diagnostics for oceanic mixed-layer depth
99    o move GMRedi call after all vertical mixing schemes (including KPP)
100    o pkg/thsice:
101     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
102      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
103    o pkg/obcs:
104     - bug fix for balance code
105    o pkg/seaice:
106      - allow values of SEAICE_elasticParm > 1
107      - add new parameter SEAICE_evpTauRelax as an alternative
108        to SEAICE_elasticParm
109      - make lsr boundary conditions free slip (by default), changes result
110      - add code for no slip boundary conditions for lsr
111      - set minimum of zeta to zero (and not 4e8) (changes results)
112      - add a cap on AREA after advecting AREA if seaice_growth is not called
113    o change calculation of Visbeck K:
114      - no longer depend on tapering scheme; instead, compute slope (limited
115        by GM_maxSlope). this is equivalent to what was comuted before with
116        clipping or linear tappering.
117      - fix vertical averaging (wrong by 1/2 level)
118      - leave the old version (but will not be maintained) within
119        #ifdef OLD_VISBECK_CALC / #endif
120      - update output of exp. ideal_2D_oce
121    o change error catch in calc_r_star to improve vectorization
122    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
123      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
124    o adjoint:
125      Re-organized adjoint checkpointing according to Matt Mazloff
126      (but with modifs/completions/cleanups)
127      Storing is now bundled into large arrays to optimized I/O
128      (and second step in cleanup of the_main_loop)
129    
130    checkpoint59b
131    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
132      - export/import (between ocean & coupler) fields needed for ocean DIC.
133    o pkg/seaice:
134      - get rid of three more exchanges seaice_calc_viscosities (required
135        different loop boundaries in seaice_lsr and seaice_ocean_stress)
136      - bug fix in seaice_ocean_stress (update of lab_sea required)
137      - reduce loop boundaries to necessary minimum also in seaice_evp
138      - go back to the old way of computing deltaC/Z as the adjoint likes that
139        better
140    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
141      passive tracer to an Age Tracer) + update output.txt
142    o pkg/exf:
143      - implement A-grid / C-grid selection for wind-stress input files.
144      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
145      for now, in exf_bulk_largeyeager04.F only :
146      - change implementation for case where windspeed + 2. components wind-stress
147        are read-in. AND use rhoConstFresh to convert evap.
148    o pkg/seaice:
149      - use correct EXCH_UV for wind-forcing (on A-grid).
150      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
151        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
152    o pkg/exf:
153      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
154      EXF_INTERPOLATION:
155      - merge global_with_exf/code version of exf_interp_read.F
156        to the main code ;
157      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
158        reading the file ; Important: This options needs to be defined to recover
159        previous code.
160        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
161      - no longer loose real*8 precision along the way when using exf_iprec=64.
162    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
163      - change discretisation of evp-solver in order to avoid another exchange
164        (changes lab_sea) and clean up a little
165      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
166        help the adjoint (this also changes the results slightly)
167      - add a few "_d 0" where they had been missing in seaice_evp.F
168      - cleaning up: remove unused seaice_calc_rhs.F
169    o pkg/exf: some cleaning-up:
170      - change various "constants" into runtime parameters
171      - cleaned-up Large&Yeager04 routine which should eventually
172        replace exf_bulkformulae.F (changed names of S/R and CPP)
173        and merged various ALLOW_ATM_WIND options
174     only used with thsice pkg (in thsice_get_exf.F):
175      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
176        which are used when useStabilityFct_overIce=TRUE (= the default)
177      - change default values of ice & snow emissivity and scale downward LW
178        by ice & snow emissivity.
179    o pkg/thsice:
180     fix few little problems, in thsice_calc_thickn.F:
181      - growth vertically (and not laterally) if iceFrac == iceMaskMax
182      - melt only laterally if hIce < hThinIce (as the comments say)
183      and in thsice_extend.F:
184      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
185      - start to form ice as soon as the minimum ice-volume is reachable.
186     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
187      and cpl_aim+ocn
188    o pkg/kpp
189     - move computation of surface related input fields to KPP into a new
190       subroutine kpp_forcing_surf.F
191     - remove wrong (within bi,bj loops) EXCH calls.
192     - little cleaning (add argument myThid in last position, cvs header ...)
193     - for now, fix conservation problem by exchanging KPPviscAz (may not
194       be the best fix)
195    o pkg/seaice
196     - check for inconsistent evp parameter/cpp-flag combination
197     - remove leftover errIO flat for obsolete name list error handling
198    o OpenAD
199     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
200    
201    checkpoint59a
202    o pkg/seaice: some parameter clarifications and a little bit of clean up
203    o pkg/thsice: rename run-time parameters:
204       himin       -> hIceMin
205       himin0      -> hThinIce
206       hihig       -> hThickIce
207       i0          -> i0swFrac
208       transCoef   -> bMeltCoef
209       frac_energy -> fracMelting
210      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
211       with default values (for now) that do not change the results.
212      remove old version of thsice vars advection in pkg/seaice.
213    o in FFIELDS.h:
214      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
215      - make pLoad & sIceLoad always available (but still only used if
216         ATMOSPHERIC_LOADING is #define).
217    o pkg/kpp: replaced _KPP_RL with _RL
218    o bug fixes for vertical diffusivity computations when both KPP and
219        3D diffusivity arrays are used.
220    o pkg/seaice: fix bug in evp solver, while doing that
221      - change (improve?) discretization of stress computations for both
222        cgrid-lsr and evp solver
223      - add a new routine to compute strain rates
224      - the above changes lab_sea results
225      - add no slip conditions for evp solver (off by default), lsr-version
226        may follow
227      - fix exchange for shear at Z-points (does not change lab_sea)
228      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
229        (to force the user to pick a time step since there is not "safe" way
230        of choosing it)
231      - add principal stress diagnostics
232      - rearrange fields for evp a little to avoid having to call a: too many
233        exchanges and b: exchanges for stress trensor components which we do
234        not have.
235      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
236        of evp, complete rewrite for lsr case (latter is does not yet work
237        in all cases)
238    o pkg/kpp: add code to have mixing in shelf ice caverns
239      - add myThid to all kpp routines (long overdue)
240    
241    checkpoint59
242    o pkg/exf:
243      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
244        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
245      - move exf header files from lower_case.h to UPPER_CASE.h ;
246        add missing cvs Header & Name
247      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
248      - add namelist param. selectStressGridPosition, exf_monFreq
249      - retire many _CLIM routines, and remove data.exf_clim
250        + params moved to data.exf
251        + climsst, climsss now handled by exf_set_gen, i.e.
252          climss?period=0 refers to constant field,
253          climss?period=-12 to monthly forcing
254      - split up namelists in data.exf
255    o pkg/seaice:
256      - remove seaice_exch and seaice_exch_uv
257      - remove superfluous exchange of theta
258      - add myThid to seaice_budget_ocean/ice
259      - add new interface for atmospheric wind forcing (C-grid only)
260        + new routine
261        + two new field (taux, tauy for stress over ice)
262        + removed one global field (DAIRN) for C-grid case only
263    o pkg/thsise
264      - 2nd set of modifs for thsice adjoint in conjunction with exf
265    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
266    
267    checkpoint58y_post
268    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
269      vertical diffusivity, similar to that in MOM4; turned on using
270      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
271      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
272    o Added capability for 3D specification of background vertical diffusion
273      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
274      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
275      "data" file that contains the 3D vertical diffusivity coefficients.
276    o ice dynamics (pkg/seaice) with thsice thermodynamics:
277      - add code within pkg thsice to advect & diffuse sea-ice fields
278      similar to (and will replace) what has been added in  seaice_advdiff.F,
279      but: - conserving Mass, Heat & Salt.
280           - better when using non-linear advection scheme (not yet fully tested)
281           - can also be used in atmospheric set-up (for now, only the diffusion).
282    
283    checkpoint58x_post
284    o IO option for global-file compact format:
285      - add options when generating topology (utils/exch2/matlab-topology-generator)
286      - add I/O capability (pkg/mdsio).
287      - adapt utils/matlab/rdmds.m to read this format.
288      for now long-line format not yet supported by pkg/mdsio (& exch2).
289    o shelfice: add a few diagnostics
290    
291    checkpoint58w_post
292    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
293      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
294      (and replace horiVertRatio in NH code).
295      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
296                         and tutorial_plume_on_slope (sensitive to truncation)
297    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
298      directly to drive seaice model (C-grid only)
299    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
300     - reintroduce computation of wind from stress,
301     - compute tau (in exf_bulkformulae.F) from windstress averaged to
302       mass points to avoid tau = 0
303     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
304    o rdmnc.m: make it work with "global" files created with gluemnc
305    o rdmnc.m : some improvements in dealing with singleton dimension
306      (tested on all testreport mnc output files).
307    o genmake2: disable pkg/profiles if netcdf test fails.
308    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
309    o move call to cal_readparms up to make calendar parameters/variable available
310      to all packages
311    
312    checkpoint58v_post
313    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
314      useDynP_inEos_Zc tested.
315    o pkg/exf: changes to properly interpolate/mask/scale initial fields
316    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
317      and portions thereof.  See read_cs.txt for description and examples.
318    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
319      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
320      following the great-circle arc between those 2 points.
321    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
322      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
323    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
324     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
325     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
326     - still needs work (not working with some options ; efficiency to improve)
327       and serious testing.
328     - use this scheme for temperature & salinity in 2 advection test exp.:
329       advect_xy & advect_xz, respectively.
330    
331    checkpoint58u_post
332    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
333    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
334    o testreport: add option "-skipdir" to skip some test.
335    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
336      momentum calculation.
337    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
338    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
339      remove checkpoint.F and the_correction_step.F (no longer used);
340      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
341    o add option (linFSConserveTr) to correct for tracer source/sink due to
342      Linear Free surface
343    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
344    o pkg/thsice: fix reading mnc-pickups
345    
346    checkpoint58t_post
347    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
348    o pkg/mdsio:
349     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
350       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
351       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
352     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
353     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
354       either MDS_READ_FIELD or MDS_WRITE_FIELD )
355     - new S/R (to replace MDSWRITEMETA), which allows to write more
356       informations (variable names, time ...) to meta files.
357     - modify rdmds.m to give back the meta file content.
358    o pkg/diagnostics: change vertical interpolation to be safer, and more
359       flexible (define p-levels to interpolate to in data.diagnostics);
360      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
361       diagnostic pointer.
362    o pkg/seaice: more cleaning up of seaice_growth, added many comments
363    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
364  o fix multi-category seaice:  o fix multi-category seaice:
365   - change cpp flag SEAICE_MULTILEVEL to more meaningful name:   - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
366     SEAICE_MULTICATEGORY     SEAICE_MULTICATEGORY
367   - fix short wave heat flux   - fix short wave heat flux
368    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
369       and allow to use EVP solver. Change forward lab_sea: test both EVP
370       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
371  o Initial check-in of lab_sea adjoint  o Initial check-in of lab_sea adjoint
372    (very similar to natl_box_adjoint/code_seaice)    (very similar to natl_box_adjoint/code_seaice)
373    * used C-grid and EVP solver    * used C-grid and EVP solver

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