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revision 1.835 by gforget, Fri Jun 15 05:09:24 2007 UTC revision 1.951 by gforget, Sat Feb 2 02:41:43 2008 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/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
8      - introduce isopycnal diffusion coefficient control.
9    o tools/adjoint_options:
10      - additional control vector components.
11    o pkg/mnc: have mnc create marginally meaning full coordinate variables
12      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
13    o pkg/mypackage:
14      - add example of read/write pickup for state-var ;
15      - add entry points to the main code for state-vars diags & write-pickup.
16    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
17      transitions for useExfYearlyFields
18      - add new subroutine that determines the file to read from for
19        use*YearlyFields = .TRUE. and .FALSE.
20      - add a verification experiment to global_with_exf that tests
21        useExfYearlyFields with USE_EXF_INTERPOLATION defined
22    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
23      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
24      subroutines (which could be generated from a template, because they are
25      almost identical), for now they are included in obcs_prescribe_read.F for
26      simplicity
27    o pkg/exf:
28      - add a little more diagnostic to exf_interp_read (in analogy to
29        mds_read_field, can be turned off with debugLevel < debugLevA=1)
30      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
31        ugly but fast by unrolling short inner loops, inserting a unroll=8
32        directive in routine lagran, and splitting a loop and making do while the
33        outermost loop (the latter requires the intoduction of index arrays)
34    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
35    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
36      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
37    o verification/seaice_obcs: updated for restart test and latest options
38    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
39      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
40      for now this is only available for the C-grid code and also within
41      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
42    
43    checkpoint59m
44    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
45      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
46    o gad_som : fix flux output (& diagnostics) to have same units as other  
47      advection scheme fluxes (was previously multiplied by deltaT).  
48    o added verification/seaice_obcs both to test seaice open boundaries
49      and to provide an example matlab scrpt for generating them
50    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
51    o pkg/salt_plume: clean up salt_plume_frac.F to
52      remove redundancy in PlumeMethod 1 and 4
53    o pkg/kpp: added saltplume diagnostics
54    o pkg/obcs and pkg/seaice:
55      - do not set uice and vice to zero when OB*icefile are unspecified
56      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
57      - moved seaice tracer obcs after call to seaice_growth
58    o pkg/salt_plume: added various options for salt plume depth
59      criterion and for vertical distribution of the salt
60    
61    checkpoint59l
62    o pkg/ptracers: new version of ptracers pickup:
63      read meta file and write only fields which are needed to restart.
64      ( same logic as main pickup file ; also using pickupStrictlyMatch )
65    o pkg/seaice:
66      - add timescale for melting due to warm mixed layer as a means of
67        setting SEAICE_availHeatFrac more conveniently
68      - add a CPP-flag/runtime parameter check for flooding algorithm
69      - reformulated availHeat in seaice_growth.F to be independent of AREA
70    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
71      unit changes
72    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
73    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
74      SX vector computer.
75    o pkg/seaice:
76      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
77        seaice forcing fields can now be read only through pkg/exf
78      - removed some unused halos
79    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
80    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
81      or U/VICE from U/VWIND before computing U/VSTRESS
82    
83    checkpoint59k
84    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
85      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
86    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
87      all experiments pass when compile with un-initialised var. checking option.
88    o added pkg/salt_plume
89    o script to test restart (for now, in MITgcm_contrib/jmc_script)
90    o pkg/seaice: new read/write pickup version.
91      read meta file and write only fields which are needed to restart.
92      ( same logic as main pickup file ; also using pickupStrictlyMatch )
93    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
94    o lab_sea.hb87: modify the domain & update output.hb87.txt :
95      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
96      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
97      process. Fixed here by closing the domain at the Northern boundary.
98    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
99    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
100      a set of consecutive levels in/from a 3-D array.
101    o pkg/ptracers:
102      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
103      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
104    
105    checkpoint59j
106    o in pkgs: dic, obcs, offline, rbcs:
107      standard way to compute coeff. for time interpolation between 2 time reccords
108      which retains full precision (& make results less dependent on compiler).
109      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
110    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
111      packages instead of reading ice cover and wind speed separately
112    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
113     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
114      to allow to compile customized code before the update)
115    o cleaning-up:
116      - fix CPP instruction syntax in pkg/obcs
117      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
118        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
119      - fix some threads issue in IO parts.
120    o pkg/dic:
121      - add tons of "_d 0" (--> much better testreports !)
122       and then update outputs of tutorial_global_oce_biogeo
123    o pkg/mom_fluxform:
124      add a special version of momentum advection intended to conserve momentum
125      next to a bathymetry step or a coastline edge. (default = off = #undef)
126    o new read/write pickup version:
127      - for now, only implemented for main (mdsio) pickup file.
128      - write out only what is needed to restart; merge pickup_nh , pickup_ph
129        and main pickup together.
130      - read meta file; read only what is needed to restart; stop if a field
131        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
132        if it make sense (even if the restart is not perfect).
133      - if no meta file, assume that pickup to read corresponds exactly to
134        a pickup that would currently be written.
135      - read pickup written in the old format (until checkpoint59i) if it
136        recognizes an old meta file (no field-list).
137      - add a meta file in exp. which starts from a pickup: 2 cases:
138        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
139         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
140        b) a meta file describing the content of the associated pickup file
141         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
142    o pkg/mdsio & pkg/rw:
143      - new routine to read a meta file ; new set of routine to read
144        Multiple-fields file (with meta file).
145    o added open boundary conditions capability for seaice
146        HSNOW, HSALT, UICE, and VICE
147    
148    checkpoint59i
149    o adjoint:
150      * fix multiDimAdvection adjoint
151        (partial recomputation problem by TAF for fVerT(:,:,kDown)
152        and comlev1 size definition (maxpass vs. max. number of tracers)
153      * verification/global_ocean.90x45x15 adjoint now tests
154        NLFS and multiDimAdvection using DST3 (=30)
155      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
156    o pkg/kpp: add "_d 0" to real constant (if missing);
157      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
158      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
159    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
160      for internal parameters related to restart process (formerly from PARAMS.h)
161      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
162    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
163      as argument. (only atm2d & obcs write_pickup have not yet been updated)
164    o pkg/monitor:
165      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
166      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
167      - account for deep Atmosphere factor and density factor (anelastic)
168    o added open boundary conditions capability for seaice HEFF and AREA
169    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
170      thermodynamics
171      - requires a little reorganization, which affects the testreport results
172        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
173        so that now the conservative form is tested
174      - add a few comments
175    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
176    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
177    o add new diagnostics to seaice: advective, diffusive fluxes (only for
178      multidim-advection, for scheme 2 they are not filled) and transports,
179      thermodynamic growth rates
180    o change units of EmPmR (inside the code, + within coupling interface)
181      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
182      Affects results @ truncation level (cg2d match) and update output of
183       experiments: lab_sea(6), global_ocean.90x40x15(10),
184      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
185      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
186      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
187      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
188    
189    checkpoint59h
190    o pkg/exf:
191      - improve vectorization by moving if-statement out of loops in
192        exf_mapfields, exf_radiation
193      - exf_bulkformulae.F: introduce 2D fields and vectorize code
194    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
195    o testreport:
196      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
197        monitor & update offline_exf_seaice exp. output.
198      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
199    o pkg/seaice:
200      - bug fix in the evp solver: boundary conditions were affected be
201        masking of zMax/zMin (changes results)
202      - minor bug fix in boundary conditions in seaice_calc_strainrates
203        (changes results for no_slip)
204      - seaice_lsr.F: make interpolation of eta dependent on boundaries
205      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
206      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
207        stress formulation and no-slip boundary conditions
208    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
209      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
210    o pkg/seaice: a first HSALT time stepping equation has been checked in
211    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
212      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
213      without requiring DO-IF statements
214    o pkg/thsice:
215      use continuous power-law function for partition of energy between lateral
216      melting/freezing and thinning/thickening ; old code using step function
217      still available with #undef THSICE_FRACEN_POWERLAW
218      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
219    o testreport: change AD testing : check against results/output_adm.txt
220      using same scripts as for forward test.
221    
222    checkpoint59g
223    o adjoint testing: in preparation for changing testreport:
224      - output format: cost and grad written on separated lines
225      - ad output results in directory "results" (instead of "results_ad")
226    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
227    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
228    o pkg/ecco: allow user defined cost function contributions
229    o testreport:
230      Allow to choose (per experiment) the list of tested output variables
231       and the main variable (used to issue a pass/FAIL ) ;
232      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
233      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
234      Also modify printing of summary:
235       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
236       b) echo the list of tested variables in the individual summary.txt of
237          each experiment.
238    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
239      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
240      (but still depend on the tile decompostion of the domain).
241    o pkg/seaice: change a discretization detail to make the B-grid code
242      "more symmetric". This change is likely to remove all "ridges/leads" that
243      where quasi-aligned with the grid in B-grid solutions. It may also be
244      the solution to the stress coupling issues with the B-grid.
245    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
246      remove .cvsignore from input dir. (since testreport no longer run here).
247    o pkg/thsice:
248     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
249     - fix reshaping of sea-ice just after advection:
250       melt all the ice only if ice-volume is too small.
251     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
252       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
253     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
254    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
255      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
256    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
257      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
258      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
259      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
260      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
261      -> update output.txt
262    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
263     this affects truncation error: -> update output.txt of exp:
264      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
265      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
266    
267    checkpoint59f
268    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
269    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
270      a bounded range (in forward mode)
271    o pkg/ecco, ctrl, autodiff and mom_common:
272     internal parameter controls, completements of implementations
273    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
274    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
275      (not seem any difference in testing results).
276    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
277       at face corners.
278    o pkg/generic_advdiff:
279     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
280      loop range indices for computing vertical advection tendency
281      and do the calculation in the interior only (no overlap) ;
282      for now, only implemented for SOM advection (to save CPU time).
283     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
284    o exch2 adjoint
285      First set of changes:
286      - add exch2 hand-written adjoint templates
287      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
288        This will require cleanup in pkg/autodiff/*.F
289        (changed routines currently kept separate in verif. code/)
290      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
291        that used to hide exch2 or cubed-sphere specific code
292        (commented via 'cph-exch2')
293    o pkg/seaice
294      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
295    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
296       output of global_ocean.cs32x15.thsice .
297    
298    checkpoint59e
299    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
300      for B-grid vector (not yet tested) and C-grid vector (<- only used
301      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
302    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
303      (#ifdef ALLOW_SALT_PLUME)
304    o gather_2d/scatter_2d: removed halo regions
305    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
306      scheme and the corresponding test case (under front_relax dir). For now,
307      only available with Skew-flux form and not yet tested in realistic set-up.
308      adjoint: store directives updated, but gradient checks deteriorated,
309      so maybe GM/Redi adjoint is now broken.
310    o seaice adjoint
311      * add AREA, HEFF, HSNOW as control variable
312        (should not change lab_sea results)
313      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
314    o pkg/seaice:
315      * added computation of saltFlux in seaice_growth;
316        For time being, sea ice salinity is assumed constant
317        contribution of snow flooding to freshening of sea ice is neglected.
318        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
319        defaults to 0.0 in order to maintain backward compatibility.
320        Typical values for SEAICE_salinity are 4 to 10 g/kg.
321      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
322      * added SEAICE_availHeatFrac, which specifies fraction of surface level
323        heat content used to melt or grow ice
324      * commented out cap of HICE: it helps keep ice thinner
325      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
326      * applied OBCS T/S mask to HEFFM sea ice mask
327    
328    checkpoint59d
329    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
330     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
331     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
332    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
333     and change default value of parameter "GM_Small_Number";
334     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
335       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
336       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
337    o pkg/ecco: cost function when applying pkg/smooth to controls
338    o pkg/ctrl: add forcingPrecond run time parameter
339    o pkg/seaice:
340     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
341     - fix bug in metric terms of u-equation in LSR solver (implicit part),
342       changes verification/lab_sea
343     - rearrange implicit part of u-equation in LSR solver to make it easier to
344       read, understand, and debug. This causes changes at the truncation level.
345     - fix (serious) bug in the boundary conditions (sign error in the implicit
346       part) of the LSR solver. Changes all LSR results.
347     - fixed problem with HSNOW initialization to avoid thick snow when AREA
348       is initilized with small values - does not change lab_sea results.
349     - added HsnowFile initialization capability
350    o pkg/smooth: addition to model/src and pkg/ctrl so allow
351     initialization of pkg/smooth and application to control vector
352    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
353    o dependencies: pkg/profiles requires pkg/cal
354  o pkg/profiles:  o pkg/profiles:
355   - added option ALLOW_PROFILES_GENERICGRID   - added option ALLOW_PROFILES_GENERICGRID
356       -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming       -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
# Line 13  o pkg/profiles: Line 360  o pkg/profiles:
360       that allow you to prepare netcdf input files.       that allow you to prepare netcdf input files.
361   - also modified: cleaner include statements, cleaner error print statements,   - also modified: cleaner include statements, cleaner error print statements,
362     cleaner stops when error, and more tests of the netcdf input files consistency.     cleaner stops when error, and more tests of the netcdf input files consistency.
   
363  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
364  o pkg/seaice:  o pkg/seaice:
365   - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this   - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
# Line 147  o in FFIELDS.h: Line 493  o in FFIELDS.h:
493       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
494  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
495  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
496      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
497        are no longer updating the vertical diffusivity array
498        (passed as argument) but are (re-) setting those arrays.
499  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
500    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
501      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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