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revision 1.835 by gforget, Fri Jun 15 05:09:24 2007 UTC revision 1.939 by mlosch, Wed Jan 16 09:48:41 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/seaice: add a new flag SEAICEuseTEM to use a slightly different
8      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
9      for now this is only available for the C-grid code and also within
10      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
11    
12    checkpoint59m
13    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
14      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
15    o gad_som : fix flux output (& diagnostics) to have same units as other  
16      advection scheme fluxes (was previously multiplied by deltaT).  
17    o added verification/seaice_obcs both to test seaice open boundaries
18      and to provide an example matlab scrpt for generating them
19    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
20    o pkg/salt_plume: clean up salt_plume_frac.F to
21      remove redundancy in PlumeMethod 1 and 4
22    o pkg/kpp: added saltplume diagnostics
23    o pkg/obcs and pkg/seaice:
24      - do not set uice and vice to zero when OB*icefile are unspecified
25      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
26      - moved seaice tracer obcs after call to seaice_growth
27    o pkg/salt_plume: added various options for salt plume depth
28      criterion and for vertical distribution of the salt
29    
30    checkpoint59l
31    o pkg/ptracers: new version of ptracers pickup:
32      read meta file and write only fields which are needed to restart.
33      ( same logic as main pickup file ; also using pickupStrictlyMatch )
34    o pkg/seaice:
35      - add timescale for melting due to warm mixed layer as a means of
36        setting SEAICE_availHeatFrac more conveniently
37      - add a CPP-flag/runtime parameter check for flooding algorithm
38      - reformulated availHeat in seaice_growth.F to be independent of AREA
39    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
40      unit changes
41    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
42    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
43      SX vector computer.
44    o pkg/seaice:
45      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
46        seaice forcing fields can now be read only through pkg/exf
47      - removed some unused halos
48    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
49    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
50      or U/VICE from U/VWIND before computing U/VSTRESS
51    
52    checkpoint59k
53    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
54      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
55    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
56      all experiments pass when compile with un-initialised var. checking option.
57    o added pkg/salt_plume
58    o script to test restart (for now, in MITgcm_contrib/jmc_script)
59    o pkg/seaice: new read/write pickup version.
60      read meta file and write only fields which are needed to restart.
61      ( same logic as main pickup file ; also using pickupStrictlyMatch )
62    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
63    o lab_sea.hb87: modify the domain & update output.hb87.txt :
64      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
65      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
66      process. Fixed here by closing the domain at the Northern boundary.
67    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
68    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
69      a set of consecutive levels in/from a 3-D array.
70    o pkg/ptracers:
71      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
72      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
73    
74    checkpoint59j
75    o in pkgs: dic, obcs, offline, rbcs:
76      standard way to compute coeff. for time interpolation between 2 time reccords
77      which retains full precision (& make results less dependent on compiler).
78      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
79    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
80      packages instead of reading ice cover and wind speed separately
81    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
82     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
83      to allow to compile customized code before the update)
84    o cleaning-up:
85      - fix CPP instruction syntax in pkg/obcs
86      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
87        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
88      - fix some threads issue in IO parts.
89    o pkg/dic:
90      - add tons of "_d 0" (--> much better testreports !)
91       and then update outputs of tutorial_global_oce_biogeo
92    o pkg/mom_fluxform:
93      add a special version of momentum advection intended to conserve momentum
94      next to a bathymetry step or a coastline edge. (default = off = #undef)
95    o new read/write pickup version:
96      - for now, only implemented for main (mdsio) pickup file.
97      - write out only what is needed to restart; merge pickup_nh , pickup_ph
98        and main pickup together.
99      - read meta file; read only what is needed to restart; stop if a field
100        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
101        if it make sense (even if the restart is not perfect).
102      - if no meta file, assume that pickup to read corresponds exactly to
103        a pickup that would currently be written.
104      - read pickup written in the old format (until checkpoint59i) if it
105        recognizes an old meta file (no field-list).
106      - add a meta file in exp. which starts from a pickup: 2 cases:
107        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
108         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
109        b) a meta file describing the content of the associated pickup file
110         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
111    o pkg/mdsio & pkg/rw:
112      - new routine to read a meta file ; new set of routine to read
113        Multiple-fields file (with meta file).
114    o added open boundary conditions capability for seaice
115        HSNOW, HSALT, UICE, and VICE
116    
117    checkpoint59i
118    o adjoint:
119      * fix multiDimAdvection adjoint
120        (partial recomputation problem by TAF for fVerT(:,:,kDown)
121        and comlev1 size definition (maxpass vs. max. number of tracers)
122      * verification/global_ocean.90x45x15 adjoint now tests
123        NLFS and multiDimAdvection using DST3 (=30)
124      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
125    o pkg/kpp: add "_d 0" to real constant (if missing);
126      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
127      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
128    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
129      for internal parameters related to restart process (formerly from PARAMS.h)
130      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
131    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
132      as argument. (only atm2d & obcs write_pickup have not yet been updated)
133    o pkg/monitor:
134      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
135      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
136      - account for deep Atmosphere factor and density factor (anelastic)
137    o added open boundary conditions capability for seaice HEFF and AREA
138    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
139      thermodynamics
140      - requires a little reorganization, which affects the testreport results
141        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
142        so that now the conservative form is tested
143      - add a few comments
144    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
145    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
146    o add new diagnostics to seaice: advective, diffusive fluxes (only for
147      multidim-advection, for scheme 2 they are not filled) and transports,
148      thermodynamic growth rates
149    o change units of EmPmR (inside the code, + within coupling interface)
150      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
151      Affects results @ truncation level (cg2d match) and update output of
152       experiments: lab_sea(6), global_ocean.90x40x15(10),
153      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
154      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
155      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
156      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
157    
158    checkpoint59h
159    o pkg/exf:
160      - improve vectorization by moving if-statement out of loops in
161        exf_mapfields, exf_radiation
162      - exf_bulkformulae.F: introduce 2D fields and vectorize code
163    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
164    o testreport:
165      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
166        monitor & update offline_exf_seaice exp. output.
167      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
168    o pkg/seaice:
169      - bug fix in the evp solver: boundary conditions were affected be
170        masking of zMax/zMin (changes results)
171      - minor bug fix in boundary conditions in seaice_calc_strainrates
172        (changes results for no_slip)
173      - seaice_lsr.F: make interpolation of eta dependent on boundaries
174      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
175      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
176        stress formulation and no-slip boundary conditions
177    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
178      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
179    o pkg/seaice: a first HSALT time stepping equation has been checked in
180    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
181      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
182      without requiring DO-IF statements
183    o pkg/thsice:
184      use continuous power-law function for partition of energy between lateral
185      melting/freezing and thinning/thickening ; old code using step function
186      still available with #undef THSICE_FRACEN_POWERLAW
187      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
188    o testreport: change AD testing : check against results/output_adm.txt
189      using same scripts as for forward test.
190    
191    checkpoint59g
192    o adjoint testing: in preparation for changing testreport:
193      - output format: cost and grad written on separated lines
194      - ad output results in directory "results" (instead of "results_ad")
195    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
196    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
197    o pkg/ecco: allow user defined cost function contributions
198    o testreport:
199      Allow to choose (per experiment) the list of tested output variables
200       and the main variable (used to issue a pass/FAIL ) ;
201      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
202      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
203      Also modify printing of summary:
204       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
205       b) echo the list of tested variables in the individual summary.txt of
206          each experiment.
207    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
208      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
209      (but still depend on the tile decompostion of the domain).
210    o pkg/seaice: change a discretization detail to make the B-grid code
211      "more symmetric". This change is likely to remove all "ridges/leads" that
212      where quasi-aligned with the grid in B-grid solutions. It may also be
213      the solution to the stress coupling issues with the B-grid.
214    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
215      remove .cvsignore from input dir. (since testreport no longer run here).
216    o pkg/thsice:
217     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
218     - fix reshaping of sea-ice just after advection:
219       melt all the ice only if ice-volume is too small.
220     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
221       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
222     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
223    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
224      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
225    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
226      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
227      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
228      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
229      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
230      -> update output.txt
231    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
232     this affects truncation error: -> update output.txt of exp:
233      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
234      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
235    
236    checkpoint59f
237    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
238    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
239      a bounded range (in forward mode)
240    o pkg/ecco, ctrl, autodiff and mom_common:
241     internal parameter controls, completements of implementations
242    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
243    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
244      (not seem any difference in testing results).
245    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
246       at face corners.
247    o pkg/generic_advdiff:
248     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
249      loop range indices for computing vertical advection tendency
250      and do the calculation in the interior only (no overlap) ;
251      for now, only implemented for SOM advection (to save CPU time).
252     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
253    o exch2 adjoint
254      First set of changes:
255      - add exch2 hand-written adjoint templates
256      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
257        This will require cleanup in pkg/autodiff/*.F
258        (changed routines currently kept separate in verif. code/)
259      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
260        that used to hide exch2 or cubed-sphere specific code
261        (commented via 'cph-exch2')
262    o pkg/seaice
263      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
264    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
265       output of global_ocean.cs32x15.thsice .
266    
267    checkpoint59e
268    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
269      for B-grid vector (not yet tested) and C-grid vector (<- only used
270      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
271    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
272      (#ifdef ALLOW_SALT_PLUME)
273    o gather_2d/scatter_2d: removed halo regions
274    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
275      scheme and the corresponding test case (under front_relax dir). For now,
276      only available with Skew-flux form and not yet tested in realistic set-up.
277      adjoint: store directives updated, but gradient checks deteriorated,
278      so maybe GM/Redi adjoint is now broken.
279    o seaice adjoint
280      * add AREA, HEFF, HSNOW as control variable
281        (should not change lab_sea results)
282      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
283    o pkg/seaice:
284      * added computation of saltFlux in seaice_growth;
285        For time being, sea ice salinity is assumed constant
286        contribution of snow flooding to freshening of sea ice is neglected.
287        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
288        defaults to 0.0 in order to maintain backward compatibility.
289        Typical values for SEAICE_salinity are 4 to 10 g/kg.
290      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
291      * added SEAICE_availHeatFrac, which specifies fraction of surface level
292        heat content used to melt or grow ice
293      * commented out cap of HICE: it helps keep ice thinner
294      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
295      * applied OBCS T/S mask to HEFFM sea ice mask
296    
297    checkpoint59d
298    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
299     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
300     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
301    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
302     and change default value of parameter "GM_Small_Number";
303     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
304       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
305       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
306    o pkg/ecco: cost function when applying pkg/smooth to controls
307    o pkg/ctrl: add forcingPrecond run time parameter
308    o pkg/seaice:
309     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
310     - fix bug in metric terms of u-equation in LSR solver (implicit part),
311       changes verification/lab_sea
312     - rearrange implicit part of u-equation in LSR solver to make it easier to
313       read, understand, and debug. This causes changes at the truncation level.
314     - fix (serious) bug in the boundary conditions (sign error in the implicit
315       part) of the LSR solver. Changes all LSR results.
316     - fixed problem with HSNOW initialization to avoid thick snow when AREA
317       is initilized with small values - does not change lab_sea results.
318     - added HsnowFile initialization capability
319    o pkg/smooth: addition to model/src and pkg/ctrl so allow
320     initialization of pkg/smooth and application to control vector
321    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
322    o dependencies: pkg/profiles requires pkg/cal
323  o pkg/profiles:  o pkg/profiles:
324   - added option ALLOW_PROFILES_GENERICGRID   - added option ALLOW_PROFILES_GENERICGRID
325       -> 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 329  o pkg/profiles:
329       that allow you to prepare netcdf input files.       that allow you to prepare netcdf input files.
330   - also modified: cleaner include statements, cleaner error print statements,   - also modified: cleaner include statements, cleaner error print statements,
331     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.
   
332  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
333  o pkg/seaice:  o pkg/seaice:
334   - 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 462  o in FFIELDS.h:
462       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
463  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
464  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
465      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
466        are no longer updating the vertical diffusivity array
467        (passed as argument) but are (re-) setting those arrays.
468  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
469    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
470      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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