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revision 1.841 by gforget, Wed Jun 20 19:39:04 2007 UTC revision 1.946 by dimitri, Fri Jan 25 11:23:06 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/exf: rewrite of exf_getffieldrec.F to properly deal with year
8      transitions for useExfYearlyFields
9    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
10      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
11      subroutines (which could be generated from a template, because they are
12      almost identical), for now they are included in obcs_prescribe_read.F for
13      simplicity
14    o pkg/exf:
15      - add a little more diagnostic to exf_interp_read (in analogy to
16        mds_read_field, can be turned off with debugLevel < debugLevA=1)
17      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
18        ugly but fast by unrolling short inner loops, inserting a unroll=8
19        directive in routine lagran, and splitting a loop and making do while the
20        outermost loop (the latter requires the intoduction of index arrays)
21    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
22    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
23      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
24    o verification/seaice_obcs: updated for restart test and latest options
25    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
26      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
27      for now this is only available for the C-grid code and also within
28      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
29    
30    checkpoint59m
31    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
32      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
33    o gad_som : fix flux output (& diagnostics) to have same units as other  
34      advection scheme fluxes (was previously multiplied by deltaT).  
35    o added verification/seaice_obcs both to test seaice open boundaries
36      and to provide an example matlab scrpt for generating them
37    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
38    o pkg/salt_plume: clean up salt_plume_frac.F to
39      remove redundancy in PlumeMethod 1 and 4
40    o pkg/kpp: added saltplume diagnostics
41    o pkg/obcs and pkg/seaice:
42      - do not set uice and vice to zero when OB*icefile are unspecified
43      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
44      - moved seaice tracer obcs after call to seaice_growth
45    o pkg/salt_plume: added various options for salt plume depth
46      criterion and for vertical distribution of the salt
47    
48    checkpoint59l
49    o pkg/ptracers: new version of ptracers pickup:
50      read meta file and write only fields which are needed to restart.
51      ( same logic as main pickup file ; also using pickupStrictlyMatch )
52    o pkg/seaice:
53      - add timescale for melting due to warm mixed layer as a means of
54        setting SEAICE_availHeatFrac more conveniently
55      - add a CPP-flag/runtime parameter check for flooding algorithm
56      - reformulated availHeat in seaice_growth.F to be independent of AREA
57    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
58      unit changes
59    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
60    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
61      SX vector computer.
62    o pkg/seaice:
63      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
64        seaice forcing fields can now be read only through pkg/exf
65      - removed some unused halos
66    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
67    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
68      or U/VICE from U/VWIND before computing U/VSTRESS
69    
70    checkpoint59k
71    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
72      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
73    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
74      all experiments pass when compile with un-initialised var. checking option.
75    o added pkg/salt_plume
76    o script to test restart (for now, in MITgcm_contrib/jmc_script)
77    o pkg/seaice: new read/write pickup version.
78      read meta file and write only fields which are needed to restart.
79      ( same logic as main pickup file ; also using pickupStrictlyMatch )
80    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
81    o lab_sea.hb87: modify the domain & update output.hb87.txt :
82      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
83      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
84      process. Fixed here by closing the domain at the Northern boundary.
85    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
86    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
87      a set of consecutive levels in/from a 3-D array.
88    o pkg/ptracers:
89      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
90      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
91    
92    checkpoint59j
93    o in pkgs: dic, obcs, offline, rbcs:
94      standard way to compute coeff. for time interpolation between 2 time reccords
95      which retains full precision (& make results less dependent on compiler).
96      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
97    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
98      packages instead of reading ice cover and wind speed separately
99    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
100     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
101      to allow to compile customized code before the update)
102    o cleaning-up:
103      - fix CPP instruction syntax in pkg/obcs
104      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
105        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
106      - fix some threads issue in IO parts.
107    o pkg/dic:
108      - add tons of "_d 0" (--> much better testreports !)
109       and then update outputs of tutorial_global_oce_biogeo
110    o pkg/mom_fluxform:
111      add a special version of momentum advection intended to conserve momentum
112      next to a bathymetry step or a coastline edge. (default = off = #undef)
113    o new read/write pickup version:
114      - for now, only implemented for main (mdsio) pickup file.
115      - write out only what is needed to restart; merge pickup_nh , pickup_ph
116        and main pickup together.
117      - read meta file; read only what is needed to restart; stop if a field
118        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
119        if it make sense (even if the restart is not perfect).
120      - if no meta file, assume that pickup to read corresponds exactly to
121        a pickup that would currently be written.
122      - read pickup written in the old format (until checkpoint59i) if it
123        recognizes an old meta file (no field-list).
124      - add a meta file in exp. which starts from a pickup: 2 cases:
125        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
126         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
127        b) a meta file describing the content of the associated pickup file
128         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
129    o pkg/mdsio & pkg/rw:
130      - new routine to read a meta file ; new set of routine to read
131        Multiple-fields file (with meta file).
132    o added open boundary conditions capability for seaice
133        HSNOW, HSALT, UICE, and VICE
134    
135    checkpoint59i
136    o adjoint:
137      * fix multiDimAdvection adjoint
138        (partial recomputation problem by TAF for fVerT(:,:,kDown)
139        and comlev1 size definition (maxpass vs. max. number of tracers)
140      * verification/global_ocean.90x45x15 adjoint now tests
141        NLFS and multiDimAdvection using DST3 (=30)
142      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
143    o pkg/kpp: add "_d 0" to real constant (if missing);
144      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
145      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
146    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
147      for internal parameters related to restart process (formerly from PARAMS.h)
148      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
149    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
150      as argument. (only atm2d & obcs write_pickup have not yet been updated)
151    o pkg/monitor:
152      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
153      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
154      - account for deep Atmosphere factor and density factor (anelastic)
155    o added open boundary conditions capability for seaice HEFF and AREA
156    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
157      thermodynamics
158      - requires a little reorganization, which affects the testreport results
159        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
160        so that now the conservative form is tested
161      - add a few comments
162    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
163    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
164    o add new diagnostics to seaice: advective, diffusive fluxes (only for
165      multidim-advection, for scheme 2 they are not filled) and transports,
166      thermodynamic growth rates
167    o change units of EmPmR (inside the code, + within coupling interface)
168      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
169      Affects results @ truncation level (cg2d match) and update output of
170       experiments: lab_sea(6), global_ocean.90x40x15(10),
171      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
172      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
173      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
174      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
175    
176    checkpoint59h
177    o pkg/exf:
178      - improve vectorization by moving if-statement out of loops in
179        exf_mapfields, exf_radiation
180      - exf_bulkformulae.F: introduce 2D fields and vectorize code
181    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
182    o testreport:
183      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
184        monitor & update offline_exf_seaice exp. output.
185      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
186    o pkg/seaice:
187      - bug fix in the evp solver: boundary conditions were affected be
188        masking of zMax/zMin (changes results)
189      - minor bug fix in boundary conditions in seaice_calc_strainrates
190        (changes results for no_slip)
191      - seaice_lsr.F: make interpolation of eta dependent on boundaries
192      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
193      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
194        stress formulation and no-slip boundary conditions
195    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
196      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
197    o pkg/seaice: a first HSALT time stepping equation has been checked in
198    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
199      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
200      without requiring DO-IF statements
201    o pkg/thsice:
202      use continuous power-law function for partition of energy between lateral
203      melting/freezing and thinning/thickening ; old code using step function
204      still available with #undef THSICE_FRACEN_POWERLAW
205      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
206    o testreport: change AD testing : check against results/output_adm.txt
207      using same scripts as for forward test.
208    
209    checkpoint59g
210    o adjoint testing: in preparation for changing testreport:
211      - output format: cost and grad written on separated lines
212      - ad output results in directory "results" (instead of "results_ad")
213    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
214    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
215    o pkg/ecco: allow user defined cost function contributions
216    o testreport:
217      Allow to choose (per experiment) the list of tested output variables
218       and the main variable (used to issue a pass/FAIL ) ;
219      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
220      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
221      Also modify printing of summary:
222       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
223       b) echo the list of tested variables in the individual summary.txt of
224          each experiment.
225    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
226      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
227      (but still depend on the tile decompostion of the domain).
228    o pkg/seaice: change a discretization detail to make the B-grid code
229      "more symmetric". This change is likely to remove all "ridges/leads" that
230      where quasi-aligned with the grid in B-grid solutions. It may also be
231      the solution to the stress coupling issues with the B-grid.
232    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
233      remove .cvsignore from input dir. (since testreport no longer run here).
234    o pkg/thsice:
235     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
236     - fix reshaping of sea-ice just after advection:
237       melt all the ice only if ice-volume is too small.
238     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
239       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
240     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
241    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
242      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
243    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
244      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
245      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
246      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
247      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
248      -> update output.txt
249    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
250     this affects truncation error: -> update output.txt of exp:
251      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
252      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
253    
254    checkpoint59f
255    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
256    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
257      a bounded range (in forward mode)
258    o pkg/ecco, ctrl, autodiff and mom_common:
259     internal parameter controls, completements of implementations
260    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
261    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
262      (not seem any difference in testing results).
263    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
264       at face corners.
265    o pkg/generic_advdiff:
266     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
267      loop range indices for computing vertical advection tendency
268      and do the calculation in the interior only (no overlap) ;
269      for now, only implemented for SOM advection (to save CPU time).
270     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
271    o exch2 adjoint
272      First set of changes:
273      - add exch2 hand-written adjoint templates
274      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
275        This will require cleanup in pkg/autodiff/*.F
276        (changed routines currently kept separate in verif. code/)
277      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
278        that used to hide exch2 or cubed-sphere specific code
279        (commented via 'cph-exch2')
280    o pkg/seaice
281      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
282    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
283       output of global_ocean.cs32x15.thsice .
284    
285    checkpoint59e
286    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
287      for B-grid vector (not yet tested) and C-grid vector (<- only used
288      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
289    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
290      (#ifdef ALLOW_SALT_PLUME)
291    o gather_2d/scatter_2d: removed halo regions
292    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
293      scheme and the corresponding test case (under front_relax dir). For now,
294      only available with Skew-flux form and not yet tested in realistic set-up.
295      adjoint: store directives updated, but gradient checks deteriorated,
296      so maybe GM/Redi adjoint is now broken.
297    o seaice adjoint
298      * add AREA, HEFF, HSNOW as control variable
299        (should not change lab_sea results)
300      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
301    o pkg/seaice:
302      * added computation of saltFlux in seaice_growth;
303        For time being, sea ice salinity is assumed constant
304        contribution of snow flooding to freshening of sea ice is neglected.
305        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
306        defaults to 0.0 in order to maintain backward compatibility.
307        Typical values for SEAICE_salinity are 4 to 10 g/kg.
308      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
309      * added SEAICE_availHeatFrac, which specifies fraction of surface level
310        heat content used to melt or grow ice
311      * commented out cap of HICE: it helps keep ice thinner
312      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
313      * applied OBCS T/S mask to HEFFM sea ice mask
314    
315    checkpoint59d
316    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
317     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
318     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
319    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
320     and change default value of parameter "GM_Small_Number";
321     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
322       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
323       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
324  o pkg/ecco: cost function when applying pkg/smooth to controls  o pkg/ecco: cost function when applying pkg/smooth to controls
325  o pkg/ctrl: add forcingPrecond run time parameter  o pkg/ctrl: add forcingPrecond run time parameter
326  o pkg/seaice:  o pkg/seaice:
# Line 30  o pkg/profiles: Line 347  o pkg/profiles:
347       that allow you to prepare netcdf input files.       that allow you to prepare netcdf input files.
348   - also modified: cleaner include statements, cleaner error print statements,   - also modified: cleaner include statements, cleaner error print statements,
349     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.
   
350  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
351  o pkg/seaice:  o pkg/seaice:
352   - 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 164  o in FFIELDS.h: Line 480  o in FFIELDS.h:
480       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
481  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
482  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
483      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
484        are no longer updating the vertical diffusivity array
485        (passed as argument) but are (re-) setting those arrays.
486  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
487    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
488      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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