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revision 1.839 by mlosch, Tue Jun 19 12:39:54 2007 UTC revision 1.947 by mlosch, Fri Jan 25 16:03:06 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      - add new subroutine that determines the file to read from for
10        use*YearlyFields = .TRUE. and .FALSE.
11    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
12      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
13      subroutines (which could be generated from a template, because they are
14      almost identical), for now they are included in obcs_prescribe_read.F for
15      simplicity
16    o pkg/exf:
17      - add a little more diagnostic to exf_interp_read (in analogy to
18        mds_read_field, can be turned off with debugLevel < debugLevA=1)
19      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
20        ugly but fast by unrolling short inner loops, inserting a unroll=8
21        directive in routine lagran, and splitting a loop and making do while the
22        outermost loop (the latter requires the intoduction of index arrays)
23    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
24    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
25      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
26    o verification/seaice_obcs: updated for restart test and latest options
27    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
28      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
29      for now this is only available for the C-grid code and also within
30      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
31    
32    checkpoint59m
33    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
34      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
35    o gad_som : fix flux output (& diagnostics) to have same units as other  
36      advection scheme fluxes (was previously multiplied by deltaT).  
37    o added verification/seaice_obcs both to test seaice open boundaries
38      and to provide an example matlab scrpt for generating them
39    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
40    o pkg/salt_plume: clean up salt_plume_frac.F to
41      remove redundancy in PlumeMethod 1 and 4
42    o pkg/kpp: added saltplume diagnostics
43    o pkg/obcs and pkg/seaice:
44      - do not set uice and vice to zero when OB*icefile are unspecified
45      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
46      - moved seaice tracer obcs after call to seaice_growth
47    o pkg/salt_plume: added various options for salt plume depth
48      criterion and for vertical distribution of the salt
49    
50    checkpoint59l
51    o pkg/ptracers: new version of ptracers pickup:
52      read meta file and write only fields which are needed to restart.
53      ( same logic as main pickup file ; also using pickupStrictlyMatch )
54    o pkg/seaice:
55      - add timescale for melting due to warm mixed layer as a means of
56        setting SEAICE_availHeatFrac more conveniently
57      - add a CPP-flag/runtime parameter check for flooding algorithm
58      - reformulated availHeat in seaice_growth.F to be independent of AREA
59    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
60      unit changes
61    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
62    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
63      SX vector computer.
64    o pkg/seaice:
65      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
66        seaice forcing fields can now be read only through pkg/exf
67      - removed some unused halos
68    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
69    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
70      or U/VICE from U/VWIND before computing U/VSTRESS
71    
72    checkpoint59k
73    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
74      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
75    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
76      all experiments pass when compile with un-initialised var. checking option.
77    o added pkg/salt_plume
78    o script to test restart (for now, in MITgcm_contrib/jmc_script)
79    o pkg/seaice: new read/write pickup version.
80      read meta file and write only fields which are needed to restart.
81      ( same logic as main pickup file ; also using pickupStrictlyMatch )
82    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
83    o lab_sea.hb87: modify the domain & update output.hb87.txt :
84      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
85      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
86      process. Fixed here by closing the domain at the Northern boundary.
87    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
88    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
89      a set of consecutive levels in/from a 3-D array.
90    o pkg/ptracers:
91      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
92      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
93    
94    checkpoint59j
95    o in pkgs: dic, obcs, offline, rbcs:
96      standard way to compute coeff. for time interpolation between 2 time reccords
97      which retains full precision (& make results less dependent on compiler).
98      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
99    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
100      packages instead of reading ice cover and wind speed separately
101    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
102     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
103      to allow to compile customized code before the update)
104    o cleaning-up:
105      - fix CPP instruction syntax in pkg/obcs
106      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
107        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
108      - fix some threads issue in IO parts.
109    o pkg/dic:
110      - add tons of "_d 0" (--> much better testreports !)
111       and then update outputs of tutorial_global_oce_biogeo
112    o pkg/mom_fluxform:
113      add a special version of momentum advection intended to conserve momentum
114      next to a bathymetry step or a coastline edge. (default = off = #undef)
115    o new read/write pickup version:
116      - for now, only implemented for main (mdsio) pickup file.
117      - write out only what is needed to restart; merge pickup_nh , pickup_ph
118        and main pickup together.
119      - read meta file; read only what is needed to restart; stop if a field
120        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
121        if it make sense (even if the restart is not perfect).
122      - if no meta file, assume that pickup to read corresponds exactly to
123        a pickup that would currently be written.
124      - read pickup written in the old format (until checkpoint59i) if it
125        recognizes an old meta file (no field-list).
126      - add a meta file in exp. which starts from a pickup: 2 cases:
127        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
128         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
129        b) a meta file describing the content of the associated pickup file
130         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
131    o pkg/mdsio & pkg/rw:
132      - new routine to read a meta file ; new set of routine to read
133        Multiple-fields file (with meta file).
134    o added open boundary conditions capability for seaice
135        HSNOW, HSALT, UICE, and VICE
136    
137    checkpoint59i
138    o adjoint:
139      * fix multiDimAdvection adjoint
140        (partial recomputation problem by TAF for fVerT(:,:,kDown)
141        and comlev1 size definition (maxpass vs. max. number of tracers)
142      * verification/global_ocean.90x45x15 adjoint now tests
143        NLFS and multiDimAdvection using DST3 (=30)
144      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
145    o pkg/kpp: add "_d 0" to real constant (if missing);
146      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
147      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
148    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
149      for internal parameters related to restart process (formerly from PARAMS.h)
150      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
151    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
152      as argument. (only atm2d & obcs write_pickup have not yet been updated)
153    o pkg/monitor:
154      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
155      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
156      - account for deep Atmosphere factor and density factor (anelastic)
157    o added open boundary conditions capability for seaice HEFF and AREA
158    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
159      thermodynamics
160      - requires a little reorganization, which affects the testreport results
161        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
162        so that now the conservative form is tested
163      - add a few comments
164    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
165    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
166    o add new diagnostics to seaice: advective, diffusive fluxes (only for
167      multidim-advection, for scheme 2 they are not filled) and transports,
168      thermodynamic growth rates
169    o change units of EmPmR (inside the code, + within coupling interface)
170      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
171      Affects results @ truncation level (cg2d match) and update output of
172       experiments: lab_sea(6), global_ocean.90x40x15(10),
173      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
174      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
175      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
176      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
177    
178    checkpoint59h
179    o pkg/exf:
180      - improve vectorization by moving if-statement out of loops in
181        exf_mapfields, exf_radiation
182      - exf_bulkformulae.F: introduce 2D fields and vectorize code
183    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
184    o testreport:
185      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
186        monitor & update offline_exf_seaice exp. output.
187      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
188    o pkg/seaice:
189      - bug fix in the evp solver: boundary conditions were affected be
190        masking of zMax/zMin (changes results)
191      - minor bug fix in boundary conditions in seaice_calc_strainrates
192        (changes results for no_slip)
193      - seaice_lsr.F: make interpolation of eta dependent on boundaries
194      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
195      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
196        stress formulation and no-slip boundary conditions
197    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
198      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
199    o pkg/seaice: a first HSALT time stepping equation has been checked in
200    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
201      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
202      without requiring DO-IF statements
203    o pkg/thsice:
204      use continuous power-law function for partition of energy between lateral
205      melting/freezing and thinning/thickening ; old code using step function
206      still available with #undef THSICE_FRACEN_POWERLAW
207      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
208    o testreport: change AD testing : check against results/output_adm.txt
209      using same scripts as for forward test.
210    
211    checkpoint59g
212    o adjoint testing: in preparation for changing testreport:
213      - output format: cost and grad written on separated lines
214      - ad output results in directory "results" (instead of "results_ad")
215    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
216    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
217    o pkg/ecco: allow user defined cost function contributions
218    o testreport:
219      Allow to choose (per experiment) the list of tested output variables
220       and the main variable (used to issue a pass/FAIL ) ;
221      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
222      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
223      Also modify printing of summary:
224       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
225       b) echo the list of tested variables in the individual summary.txt of
226          each experiment.
227    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
228      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
229      (but still depend on the tile decompostion of the domain).
230    o pkg/seaice: change a discretization detail to make the B-grid code
231      "more symmetric". This change is likely to remove all "ridges/leads" that
232      where quasi-aligned with the grid in B-grid solutions. It may also be
233      the solution to the stress coupling issues with the B-grid.
234    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
235      remove .cvsignore from input dir. (since testreport no longer run here).
236    o pkg/thsice:
237     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
238     - fix reshaping of sea-ice just after advection:
239       melt all the ice only if ice-volume is too small.
240     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
241       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
242     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
243    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
244      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
245    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
246      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
247      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
248      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
249      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
250      -> update output.txt
251    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
252     this affects truncation error: -> update output.txt of exp:
253      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
254      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
255    
256    checkpoint59f
257    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
258    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
259      a bounded range (in forward mode)
260    o pkg/ecco, ctrl, autodiff and mom_common:
261     internal parameter controls, completements of implementations
262    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
263    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
264      (not seem any difference in testing results).
265    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
266       at face corners.
267    o pkg/generic_advdiff:
268     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
269      loop range indices for computing vertical advection tendency
270      and do the calculation in the interior only (no overlap) ;
271      for now, only implemented for SOM advection (to save CPU time).
272     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
273    o exch2 adjoint
274      First set of changes:
275      - add exch2 hand-written adjoint templates
276      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
277        This will require cleanup in pkg/autodiff/*.F
278        (changed routines currently kept separate in verif. code/)
279      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
280        that used to hide exch2 or cubed-sphere specific code
281        (commented via 'cph-exch2')
282    o pkg/seaice
283      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
284    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
285       output of global_ocean.cs32x15.thsice .
286    
287    checkpoint59e
288    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
289      for B-grid vector (not yet tested) and C-grid vector (<- only used
290      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
291    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
292      (#ifdef ALLOW_SALT_PLUME)
293    o gather_2d/scatter_2d: removed halo regions
294    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
295      scheme and the corresponding test case (under front_relax dir). For now,
296      only available with Skew-flux form and not yet tested in realistic set-up.
297      adjoint: store directives updated, but gradient checks deteriorated,
298      so maybe GM/Redi adjoint is now broken.
299    o seaice adjoint
300      * add AREA, HEFF, HSNOW as control variable
301        (should not change lab_sea results)
302      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
303    o pkg/seaice:
304      * added computation of saltFlux in seaice_growth;
305        For time being, sea ice salinity is assumed constant
306        contribution of snow flooding to freshening of sea ice is neglected.
307        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
308        defaults to 0.0 in order to maintain backward compatibility.
309        Typical values for SEAICE_salinity are 4 to 10 g/kg.
310      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
311      * added SEAICE_availHeatFrac, which specifies fraction of surface level
312        heat content used to melt or grow ice
313      * commented out cap of HICE: it helps keep ice thinner
314      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
315      * applied OBCS T/S mask to HEFFM sea ice mask
316    
317    checkpoint59d
318    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
319     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
320     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
321    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
322     and change default value of parameter "GM_Small_Number";
323     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
324       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
325       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
326    o pkg/ecco: cost function when applying pkg/smooth to controls
327    o pkg/ctrl: add forcingPrecond run time parameter
328  o pkg/seaice:  o pkg/seaice:
329   - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code   - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
330   - fix bug in metric terms of u-equation in LSR solver (implicit part),   - fix bug in metric terms of u-equation in LSR solver (implicit part),
# Line 12  o pkg/seaice: Line 333  o pkg/seaice:
333     read, understand, and debug. This causes changes at the truncation level.     read, understand, and debug. This causes changes at the truncation level.
334   - fix (serious) bug in the boundary conditions (sign error in the implicit   - fix (serious) bug in the boundary conditions (sign error in the implicit
335     part) of the LSR solver. Changes all LSR results.     part) of the LSR solver. Changes all LSR results.
336     - fixed problem with HSNOW initialization to avoid thick snow when AREA
337       is initilized with small values - does not change lab_sea results.
338     - added HsnowFile initialization capability
339  o pkg/smooth: addition to model/src and pkg/ctrl so allow  o pkg/smooth: addition to model/src and pkg/ctrl so allow
340   initialization of pkg/smooth and application to control vector   initialization of pkg/smooth and application to control vector
341  o pkg/seaice: fix another bug in the LSR no-slip boundary conditons  o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
# Line 25  o pkg/profiles: Line 349  o pkg/profiles:
349       that allow you to prepare netcdf input files.       that allow you to prepare netcdf input files.
350   - also modified: cleaner include statements, cleaner error print statements,   - also modified: cleaner include statements, cleaner error print statements,
351     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.
   
352  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
353  o pkg/seaice:  o pkg/seaice:
354   - 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 159  o in FFIELDS.h: Line 482  o in FFIELDS.h:
482       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
483  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
484  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
485      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
486        are no longer updating the vertical diffusivity array
487        (passed as argument) but are (re-) setting those arrays.
488  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
489    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
490      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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