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revision 1.837 by mlosch, Sun Jun 17 09:22:06 2007 UTC revision 1.942 by dimitri, Fri Jan 18 01:38:33 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/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
8    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
9      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
10    o verification/seaice_obcs: updated for restart test and latest options
11    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
12      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
13      for now this is only available for the C-grid code and also within
14      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
15    
16    checkpoint59m
17    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
18      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
19    o gad_som : fix flux output (& diagnostics) to have same units as other  
20      advection scheme fluxes (was previously multiplied by deltaT).  
21    o added verification/seaice_obcs both to test seaice open boundaries
22      and to provide an example matlab scrpt for generating them
23    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
24    o pkg/salt_plume: clean up salt_plume_frac.F to
25      remove redundancy in PlumeMethod 1 and 4
26    o pkg/kpp: added saltplume diagnostics
27    o pkg/obcs and pkg/seaice:
28      - do not set uice and vice to zero when OB*icefile are unspecified
29      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
30      - moved seaice tracer obcs after call to seaice_growth
31    o pkg/salt_plume: added various options for salt plume depth
32      criterion and for vertical distribution of the salt
33    
34    checkpoint59l
35    o pkg/ptracers: new version of ptracers pickup:
36      read meta file and write only fields which are needed to restart.
37      ( same logic as main pickup file ; also using pickupStrictlyMatch )
38    o pkg/seaice:
39      - add timescale for melting due to warm mixed layer as a means of
40        setting SEAICE_availHeatFrac more conveniently
41      - add a CPP-flag/runtime parameter check for flooding algorithm
42      - reformulated availHeat in seaice_growth.F to be independent of AREA
43    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
44      unit changes
45    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
46    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
47      SX vector computer.
48    o pkg/seaice:
49      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
50        seaice forcing fields can now be read only through pkg/exf
51      - removed some unused halos
52    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
53    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
54      or U/VICE from U/VWIND before computing U/VSTRESS
55    
56    checkpoint59k
57    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
58      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
59    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
60      all experiments pass when compile with un-initialised var. checking option.
61    o added pkg/salt_plume
62    o script to test restart (for now, in MITgcm_contrib/jmc_script)
63    o pkg/seaice: new read/write pickup version.
64      read meta file and write only fields which are needed to restart.
65      ( same logic as main pickup file ; also using pickupStrictlyMatch )
66    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
67    o lab_sea.hb87: modify the domain & update output.hb87.txt :
68      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
69      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
70      process. Fixed here by closing the domain at the Northern boundary.
71    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
72    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
73      a set of consecutive levels in/from a 3-D array.
74    o pkg/ptracers:
75      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
76      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
77    
78    checkpoint59j
79    o in pkgs: dic, obcs, offline, rbcs:
80      standard way to compute coeff. for time interpolation between 2 time reccords
81      which retains full precision (& make results less dependent on compiler).
82      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
83    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
84      packages instead of reading ice cover and wind speed separately
85    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
86     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
87      to allow to compile customized code before the update)
88    o cleaning-up:
89      - fix CPP instruction syntax in pkg/obcs
90      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
91        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
92      - fix some threads issue in IO parts.
93    o pkg/dic:
94      - add tons of "_d 0" (--> much better testreports !)
95       and then update outputs of tutorial_global_oce_biogeo
96    o pkg/mom_fluxform:
97      add a special version of momentum advection intended to conserve momentum
98      next to a bathymetry step or a coastline edge. (default = off = #undef)
99    o new read/write pickup version:
100      - for now, only implemented for main (mdsio) pickup file.
101      - write out only what is needed to restart; merge pickup_nh , pickup_ph
102        and main pickup together.
103      - read meta file; read only what is needed to restart; stop if a field
104        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
105        if it make sense (even if the restart is not perfect).
106      - if no meta file, assume that pickup to read corresponds exactly to
107        a pickup that would currently be written.
108      - read pickup written in the old format (until checkpoint59i) if it
109        recognizes an old meta file (no field-list).
110      - add a meta file in exp. which starts from a pickup: 2 cases:
111        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
112         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
113        b) a meta file describing the content of the associated pickup file
114         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
115    o pkg/mdsio & pkg/rw:
116      - new routine to read a meta file ; new set of routine to read
117        Multiple-fields file (with meta file).
118    o added open boundary conditions capability for seaice
119        HSNOW, HSALT, UICE, and VICE
120    
121    checkpoint59i
122    o adjoint:
123      * fix multiDimAdvection adjoint
124        (partial recomputation problem by TAF for fVerT(:,:,kDown)
125        and comlev1 size definition (maxpass vs. max. number of tracers)
126      * verification/global_ocean.90x45x15 adjoint now tests
127        NLFS and multiDimAdvection using DST3 (=30)
128      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
129    o pkg/kpp: add "_d 0" to real constant (if missing);
130      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
131      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
132    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
133      for internal parameters related to restart process (formerly from PARAMS.h)
134      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
135    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
136      as argument. (only atm2d & obcs write_pickup have not yet been updated)
137    o pkg/monitor:
138      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
139      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
140      - account for deep Atmosphere factor and density factor (anelastic)
141    o added open boundary conditions capability for seaice HEFF and AREA
142    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
143      thermodynamics
144      - requires a little reorganization, which affects the testreport results
145        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
146        so that now the conservative form is tested
147      - add a few comments
148    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
149    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
150    o add new diagnostics to seaice: advective, diffusive fluxes (only for
151      multidim-advection, for scheme 2 they are not filled) and transports,
152      thermodynamic growth rates
153    o change units of EmPmR (inside the code, + within coupling interface)
154      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
155      Affects results @ truncation level (cg2d match) and update output of
156       experiments: lab_sea(6), global_ocean.90x40x15(10),
157      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
158      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
159      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
160      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
161    
162    checkpoint59h
163    o pkg/exf:
164      - improve vectorization by moving if-statement out of loops in
165        exf_mapfields, exf_radiation
166      - exf_bulkformulae.F: introduce 2D fields and vectorize code
167    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
168    o testreport:
169      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
170        monitor & update offline_exf_seaice exp. output.
171      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
172    o pkg/seaice:
173      - bug fix in the evp solver: boundary conditions were affected be
174        masking of zMax/zMin (changes results)
175      - minor bug fix in boundary conditions in seaice_calc_strainrates
176        (changes results for no_slip)
177      - seaice_lsr.F: make interpolation of eta dependent on boundaries
178      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
179      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
180        stress formulation and no-slip boundary conditions
181    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
182      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
183    o pkg/seaice: a first HSALT time stepping equation has been checked in
184    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
185      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
186      without requiring DO-IF statements
187    o pkg/thsice:
188      use continuous power-law function for partition of energy between lateral
189      melting/freezing and thinning/thickening ; old code using step function
190      still available with #undef THSICE_FRACEN_POWERLAW
191      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
192    o testreport: change AD testing : check against results/output_adm.txt
193      using same scripts as for forward test.
194    
195    checkpoint59g
196    o adjoint testing: in preparation for changing testreport:
197      - output format: cost and grad written on separated lines
198      - ad output results in directory "results" (instead of "results_ad")
199    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
200    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
201    o pkg/ecco: allow user defined cost function contributions
202    o testreport:
203      Allow to choose (per experiment) the list of tested output variables
204       and the main variable (used to issue a pass/FAIL ) ;
205      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
206      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
207      Also modify printing of summary:
208       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
209       b) echo the list of tested variables in the individual summary.txt of
210          each experiment.
211    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
212      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
213      (but still depend on the tile decompostion of the domain).
214    o pkg/seaice: change a discretization detail to make the B-grid code
215      "more symmetric". This change is likely to remove all "ridges/leads" that
216      where quasi-aligned with the grid in B-grid solutions. It may also be
217      the solution to the stress coupling issues with the B-grid.
218    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
219      remove .cvsignore from input dir. (since testreport no longer run here).
220    o pkg/thsice:
221     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
222     - fix reshaping of sea-ice just after advection:
223       melt all the ice only if ice-volume is too small.
224     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
225       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
226     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
227    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
228      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
229    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
230      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
231      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
232      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
233      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
234      -> update output.txt
235    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
236     this affects truncation error: -> update output.txt of exp:
237      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
238      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
239    
240    checkpoint59f
241    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
242    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
243      a bounded range (in forward mode)
244    o pkg/ecco, ctrl, autodiff and mom_common:
245     internal parameter controls, completements of implementations
246    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
247    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
248      (not seem any difference in testing results).
249    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
250       at face corners.
251    o pkg/generic_advdiff:
252     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
253      loop range indices for computing vertical advection tendency
254      and do the calculation in the interior only (no overlap) ;
255      for now, only implemented for SOM advection (to save CPU time).
256     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
257    o exch2 adjoint
258      First set of changes:
259      - add exch2 hand-written adjoint templates
260      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
261        This will require cleanup in pkg/autodiff/*.F
262        (changed routines currently kept separate in verif. code/)
263      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
264        that used to hide exch2 or cubed-sphere specific code
265        (commented via 'cph-exch2')
266    o pkg/seaice
267      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
268    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
269       output of global_ocean.cs32x15.thsice .
270    
271    checkpoint59e
272    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
273      for B-grid vector (not yet tested) and C-grid vector (<- only used
274      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
275    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
276      (#ifdef ALLOW_SALT_PLUME)
277    o gather_2d/scatter_2d: removed halo regions
278    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
279      scheme and the corresponding test case (under front_relax dir). For now,
280      only available with Skew-flux form and not yet tested in realistic set-up.
281      adjoint: store directives updated, but gradient checks deteriorated,
282      so maybe GM/Redi adjoint is now broken.
283    o seaice adjoint
284      * add AREA, HEFF, HSNOW as control variable
285        (should not change lab_sea results)
286      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
287    o pkg/seaice:
288      * added computation of saltFlux in seaice_growth;
289        For time being, sea ice salinity is assumed constant
290        contribution of snow flooding to freshening of sea ice is neglected.
291        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
292        defaults to 0.0 in order to maintain backward compatibility.
293        Typical values for SEAICE_salinity are 4 to 10 g/kg.
294      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
295      * added SEAICE_availHeatFrac, which specifies fraction of surface level
296        heat content used to melt or grow ice
297      * commented out cap of HICE: it helps keep ice thinner
298      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
299      * applied OBCS T/S mask to HEFFM sea ice mask
300    
301    checkpoint59d
302    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
303     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
304     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
305    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
306     and change default value of parameter "GM_Small_Number";
307     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
308       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
309       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
310    o pkg/ecco: cost function when applying pkg/smooth to controls
311    o pkg/ctrl: add forcingPrecond run time parameter
312    o pkg/seaice:
313     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
314     - fix bug in metric terms of u-equation in LSR solver (implicit part),
315       changes verification/lab_sea
316     - rearrange implicit part of u-equation in LSR solver to make it easier to
317       read, understand, and debug. This causes changes at the truncation level.
318     - fix (serious) bug in the boundary conditions (sign error in the implicit
319       part) of the LSR solver. Changes all LSR results.
320     - fixed problem with HSNOW initialization to avoid thick snow when AREA
321       is initilized with small values - does not change lab_sea results.
322     - added HsnowFile initialization capability
323    o pkg/smooth: addition to model/src and pkg/ctrl so allow
324     initialization of pkg/smooth and application to control vector
325  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
326  o dependencies: pkg/profiles requires pkg/cal  o dependencies: pkg/profiles requires pkg/cal
327  o pkg/profiles:  o pkg/profiles:
# Line 15  o pkg/profiles: Line 333  o pkg/profiles:
333       that allow you to prepare netcdf input files.       that allow you to prepare netcdf input files.
334   - also modified: cleaner include statements, cleaner error print statements,   - also modified: cleaner include statements, cleaner error print statements,
335     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.
   
336  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
337  o pkg/seaice:  o pkg/seaice:
338   - 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 149  o in FFIELDS.h: Line 466  o in FFIELDS.h:
466       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
467  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
468  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
469      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
470        are no longer updating the vertical diffusivity array
471        (passed as argument) but are (re-) setting those arrays.
472  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
473    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
474      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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