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revision 1.840 by dimitri, Wed Jun 20 14:08:22 2007 UTC revision 1.952 by mlosch, Tue Feb 5 13:34:12 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 add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
8      usingSphericalGrid, this allows to define the rotated grid coordinates
9      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
10      geographical coordinates according to the inverse of the rotation defined
11      by the Euler angles, so that Coriolis parameter and online-interpolation by
12      exf works with the geographical coordinates on XC/YC/XG/YG.
13      Naturally, this feature does not work with all packages, so some
14      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
15      profiles), because there the coordinates are assumed to be regular
16      spherical grid coordinates.
17    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
18      - introduce isopycnal diffusion coefficient control.
19    o tools/adjoint_options:
20      - additional control vector components.
21    o pkg/mnc: have mnc create marginally meaning full coordinate variables
22      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
23    o pkg/mypackage:
24      - add example of read/write pickup for state-var ;
25      - add entry points to the main code for state-vars diags & write-pickup.
26    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
27      transitions for useExfYearlyFields
28      - add new subroutine that determines the file to read from for
29        use*YearlyFields = .TRUE. and .FALSE.
30      - add a verification experiment to global_with_exf that tests
31        useExfYearlyFields with USE_EXF_INTERPOLATION defined
32    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
33      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
34      subroutines (which could be generated from a template, because they are
35      almost identical), for now they are included in obcs_prescribe_read.F for
36      simplicity
37    o pkg/exf:
38      - add a little more diagnostic to exf_interp_read (in analogy to
39        mds_read_field, can be turned off with debugLevel < debugLevA=1)
40      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
41        ugly but fast by unrolling short inner loops, inserting a unroll=8
42        directive in routine lagran, and splitting a loop and making do while the
43        outermost loop (the latter requires the intoduction of index arrays)
44    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
45    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
46      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
47    o verification/seaice_obcs: updated for restart test and latest options
48    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
49      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
50      for now this is only available for the C-grid code and also within
51      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
52    
53    checkpoint59m
54    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
55      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
56    o gad_som : fix flux output (& diagnostics) to have same units as other  
57      advection scheme fluxes (was previously multiplied by deltaT).  
58    o added verification/seaice_obcs both to test seaice open boundaries
59      and to provide an example matlab scrpt for generating them
60    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
61    o pkg/salt_plume: clean up salt_plume_frac.F to
62      remove redundancy in PlumeMethod 1 and 4
63    o pkg/kpp: added saltplume diagnostics
64    o pkg/obcs and pkg/seaice:
65      - do not set uice and vice to zero when OB*icefile are unspecified
66      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
67      - moved seaice tracer obcs after call to seaice_growth
68    o pkg/salt_plume: added various options for salt plume depth
69      criterion and for vertical distribution of the salt
70    
71    checkpoint59l
72    o pkg/ptracers: new version of ptracers pickup:
73      read meta file and write only fields which are needed to restart.
74      ( same logic as main pickup file ; also using pickupStrictlyMatch )
75    o pkg/seaice:
76      - add timescale for melting due to warm mixed layer as a means of
77        setting SEAICE_availHeatFrac more conveniently
78      - add a CPP-flag/runtime parameter check for flooding algorithm
79      - reformulated availHeat in seaice_growth.F to be independent of AREA
80    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
81      unit changes
82    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
83    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
84      SX vector computer.
85    o pkg/seaice:
86      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
87        seaice forcing fields can now be read only through pkg/exf
88      - removed some unused halos
89    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
90    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
91      or U/VICE from U/VWIND before computing U/VSTRESS
92    
93    checkpoint59k
94    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
95      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
96    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
97      all experiments pass when compile with un-initialised var. checking option.
98    o added pkg/salt_plume
99    o script to test restart (for now, in MITgcm_contrib/jmc_script)
100    o pkg/seaice: new read/write pickup version.
101      read meta file and write only fields which are needed to restart.
102      ( same logic as main pickup file ; also using pickupStrictlyMatch )
103    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
104    o lab_sea.hb87: modify the domain & update output.hb87.txt :
105      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
106      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
107      process. Fixed here by closing the domain at the Northern boundary.
108    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
109    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
110      a set of consecutive levels in/from a 3-D array.
111    o pkg/ptracers:
112      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
113      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
114    
115    checkpoint59j
116    o in pkgs: dic, obcs, offline, rbcs:
117      standard way to compute coeff. for time interpolation between 2 time reccords
118      which retains full precision (& make results less dependent on compiler).
119      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
120    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
121      packages instead of reading ice cover and wind speed separately
122    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
123     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
124      to allow to compile customized code before the update)
125    o cleaning-up:
126      - fix CPP instruction syntax in pkg/obcs
127      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
128        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
129      - fix some threads issue in IO parts.
130    o pkg/dic:
131      - add tons of "_d 0" (--> much better testreports !)
132       and then update outputs of tutorial_global_oce_biogeo
133    o pkg/mom_fluxform:
134      add a special version of momentum advection intended to conserve momentum
135      next to a bathymetry step or a coastline edge. (default = off = #undef)
136    o new read/write pickup version:
137      - for now, only implemented for main (mdsio) pickup file.
138      - write out only what is needed to restart; merge pickup_nh , pickup_ph
139        and main pickup together.
140      - read meta file; read only what is needed to restart; stop if a field
141        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
142        if it make sense (even if the restart is not perfect).
143      - if no meta file, assume that pickup to read corresponds exactly to
144        a pickup that would currently be written.
145      - read pickup written in the old format (until checkpoint59i) if it
146        recognizes an old meta file (no field-list).
147      - add a meta file in exp. which starts from a pickup: 2 cases:
148        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
149         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
150        b) a meta file describing the content of the associated pickup file
151         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
152    o pkg/mdsio & pkg/rw:
153      - new routine to read a meta file ; new set of routine to read
154        Multiple-fields file (with meta file).
155    o added open boundary conditions capability for seaice
156        HSNOW, HSALT, UICE, and VICE
157    
158    checkpoint59i
159    o adjoint:
160      * fix multiDimAdvection adjoint
161        (partial recomputation problem by TAF for fVerT(:,:,kDown)
162        and comlev1 size definition (maxpass vs. max. number of tracers)
163      * verification/global_ocean.90x45x15 adjoint now tests
164        NLFS and multiDimAdvection using DST3 (=30)
165      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
166    o pkg/kpp: add "_d 0" to real constant (if missing);
167      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
168      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
169    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
170      for internal parameters related to restart process (formerly from PARAMS.h)
171      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
172    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
173      as argument. (only atm2d & obcs write_pickup have not yet been updated)
174    o pkg/monitor:
175      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
176      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
177      - account for deep Atmosphere factor and density factor (anelastic)
178    o added open boundary conditions capability for seaice HEFF and AREA
179    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
180      thermodynamics
181      - requires a little reorganization, which affects the testreport results
182        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
183        so that now the conservative form is tested
184      - add a few comments
185    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
186    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
187    o add new diagnostics to seaice: advective, diffusive fluxes (only for
188      multidim-advection, for scheme 2 they are not filled) and transports,
189      thermodynamic growth rates
190    o change units of EmPmR (inside the code, + within coupling interface)
191      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
192      Affects results @ truncation level (cg2d match) and update output of
193       experiments: lab_sea(6), global_ocean.90x40x15(10),
194      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
195      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
196      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
197      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
198    
199    checkpoint59h
200    o pkg/exf:
201      - improve vectorization by moving if-statement out of loops in
202        exf_mapfields, exf_radiation
203      - exf_bulkformulae.F: introduce 2D fields and vectorize code
204    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
205    o testreport:
206      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
207        monitor & update offline_exf_seaice exp. output.
208      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
209    o pkg/seaice:
210      - bug fix in the evp solver: boundary conditions were affected be
211        masking of zMax/zMin (changes results)
212      - minor bug fix in boundary conditions in seaice_calc_strainrates
213        (changes results for no_slip)
214      - seaice_lsr.F: make interpolation of eta dependent on boundaries
215      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
216      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
217        stress formulation and no-slip boundary conditions
218    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
219      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
220    o pkg/seaice: a first HSALT time stepping equation has been checked in
221    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
222      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
223      without requiring DO-IF statements
224    o pkg/thsice:
225      use continuous power-law function for partition of energy between lateral
226      melting/freezing and thinning/thickening ; old code using step function
227      still available with #undef THSICE_FRACEN_POWERLAW
228      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
229    o testreport: change AD testing : check against results/output_adm.txt
230      using same scripts as for forward test.
231    
232    checkpoint59g
233    o adjoint testing: in preparation for changing testreport:
234      - output format: cost and grad written on separated lines
235      - ad output results in directory "results" (instead of "results_ad")
236    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
237    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
238    o pkg/ecco: allow user defined cost function contributions
239    o testreport:
240      Allow to choose (per experiment) the list of tested output variables
241       and the main variable (used to issue a pass/FAIL ) ;
242      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
243      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
244      Also modify printing of summary:
245       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
246       b) echo the list of tested variables in the individual summary.txt of
247          each experiment.
248    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
249      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
250      (but still depend on the tile decompostion of the domain).
251    o pkg/seaice: change a discretization detail to make the B-grid code
252      "more symmetric". This change is likely to remove all "ridges/leads" that
253      where quasi-aligned with the grid in B-grid solutions. It may also be
254      the solution to the stress coupling issues with the B-grid.
255    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
256      remove .cvsignore from input dir. (since testreport no longer run here).
257    o pkg/thsice:
258     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
259     - fix reshaping of sea-ice just after advection:
260       melt all the ice only if ice-volume is too small.
261     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
262       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
263     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
264    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
265      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
266    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
267      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
268      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
269      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
270      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
271      -> update output.txt
272    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
273     this affects truncation error: -> update output.txt of exp:
274      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
275      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
276    
277    checkpoint59f
278    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
279    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
280      a bounded range (in forward mode)
281    o pkg/ecco, ctrl, autodiff and mom_common:
282     internal parameter controls, completements of implementations
283    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
284    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
285      (not seem any difference in testing results).
286    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
287       at face corners.
288    o pkg/generic_advdiff:
289     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
290      loop range indices for computing vertical advection tendency
291      and do the calculation in the interior only (no overlap) ;
292      for now, only implemented for SOM advection (to save CPU time).
293     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
294    o exch2 adjoint
295      First set of changes:
296      - add exch2 hand-written adjoint templates
297      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
298        This will require cleanup in pkg/autodiff/*.F
299        (changed routines currently kept separate in verif. code/)
300      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
301        that used to hide exch2 or cubed-sphere specific code
302        (commented via 'cph-exch2')
303    o pkg/seaice
304      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
305    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
306       output of global_ocean.cs32x15.thsice .
307    
308    checkpoint59e
309    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
310      for B-grid vector (not yet tested) and C-grid vector (<- only used
311      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
312    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
313      (#ifdef ALLOW_SALT_PLUME)
314    o gather_2d/scatter_2d: removed halo regions
315    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
316      scheme and the corresponding test case (under front_relax dir). For now,
317      only available with Skew-flux form and not yet tested in realistic set-up.
318      adjoint: store directives updated, but gradient checks deteriorated,
319      so maybe GM/Redi adjoint is now broken.
320    o seaice adjoint
321      * add AREA, HEFF, HSNOW as control variable
322        (should not change lab_sea results)
323      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
324    o pkg/seaice:
325      * added computation of saltFlux in seaice_growth;
326        For time being, sea ice salinity is assumed constant
327        contribution of snow flooding to freshening of sea ice is neglected.
328        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
329        defaults to 0.0 in order to maintain backward compatibility.
330        Typical values for SEAICE_salinity are 4 to 10 g/kg.
331      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
332      * added SEAICE_availHeatFrac, which specifies fraction of surface level
333        heat content used to melt or grow ice
334      * commented out cap of HICE: it helps keep ice thinner
335      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
336      * applied OBCS T/S mask to HEFFM sea ice mask
337    
338    checkpoint59d
339    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
340     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
341     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
342    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
343     and change default value of parameter "GM_Small_Number";
344     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
345       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
346       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
347    o pkg/ecco: cost function when applying pkg/smooth to controls
348    o pkg/ctrl: add forcingPrecond run time parameter
349  o pkg/seaice:  o pkg/seaice:
350   - 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
351   - 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 28  o pkg/profiles: Line 370  o pkg/profiles:
370       that allow you to prepare netcdf input files.       that allow you to prepare netcdf input files.
371   - also modified: cleaner include statements, cleaner error print statements,   - also modified: cleaner include statements, cleaner error print statements,
372     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.
   
373  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
374  o pkg/seaice:  o pkg/seaice:
375   - 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 162  o in FFIELDS.h: Line 503  o in FFIELDS.h:
503       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
504  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
505  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
506      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
507        are no longer updating the vertical diffusivity array
508        (passed as argument) but are (re-) setting those arrays.
509  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
510    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
511      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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