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revision 1.837 by mlosch, Sun Jun 17 09:22:06 2007 UTC revision 1.943 by mlosch, Wed Jan 23 16:41:21 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:
8      - add a little more diagnostic to exf_interp_read (in analogy to
9        mds_read_field, can be turned off with debugLevel < debugLevA=1)
10      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
11        ugly but fast (vectorization is not yet complete)
12    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
13    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
14      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
15    o verification/seaice_obcs: updated for restart test and latest options
16    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
17      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
18      for now this is only available for the C-grid code and also within
19      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
20    
21    checkpoint59m
22    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
23      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
24    o gad_som : fix flux output (& diagnostics) to have same units as other  
25      advection scheme fluxes (was previously multiplied by deltaT).  
26    o added verification/seaice_obcs both to test seaice open boundaries
27      and to provide an example matlab scrpt for generating them
28    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
29    o pkg/salt_plume: clean up salt_plume_frac.F to
30      remove redundancy in PlumeMethod 1 and 4
31    o pkg/kpp: added saltplume diagnostics
32    o pkg/obcs and pkg/seaice:
33      - do not set uice and vice to zero when OB*icefile are unspecified
34      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
35      - moved seaice tracer obcs after call to seaice_growth
36    o pkg/salt_plume: added various options for salt plume depth
37      criterion and for vertical distribution of the salt
38    
39    checkpoint59l
40    o pkg/ptracers: new version of ptracers pickup:
41      read meta file and write only fields which are needed to restart.
42      ( same logic as main pickup file ; also using pickupStrictlyMatch )
43    o pkg/seaice:
44      - add timescale for melting due to warm mixed layer as a means of
45        setting SEAICE_availHeatFrac more conveniently
46      - add a CPP-flag/runtime parameter check for flooding algorithm
47      - reformulated availHeat in seaice_growth.F to be independent of AREA
48    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
49      unit changes
50    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
51    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
52      SX vector computer.
53    o pkg/seaice:
54      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
55        seaice forcing fields can now be read only through pkg/exf
56      - removed some unused halos
57    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
58    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
59      or U/VICE from U/VWIND before computing U/VSTRESS
60    
61    checkpoint59k
62    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
63      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
64    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
65      all experiments pass when compile with un-initialised var. checking option.
66    o added pkg/salt_plume
67    o script to test restart (for now, in MITgcm_contrib/jmc_script)
68    o pkg/seaice: new read/write pickup version.
69      read meta file and write only fields which are needed to restart.
70      ( same logic as main pickup file ; also using pickupStrictlyMatch )
71    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
72    o lab_sea.hb87: modify the domain & update output.hb87.txt :
73      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
74      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
75      process. Fixed here by closing the domain at the Northern boundary.
76    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
77    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
78      a set of consecutive levels in/from a 3-D array.
79    o pkg/ptracers:
80      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
81      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
82    
83    checkpoint59j
84    o in pkgs: dic, obcs, offline, rbcs:
85      standard way to compute coeff. for time interpolation between 2 time reccords
86      which retains full precision (& make results less dependent on compiler).
87      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
88    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
89      packages instead of reading ice cover and wind speed separately
90    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
91     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
92      to allow to compile customized code before the update)
93    o cleaning-up:
94      - fix CPP instruction syntax in pkg/obcs
95      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
96        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
97      - fix some threads issue in IO parts.
98    o pkg/dic:
99      - add tons of "_d 0" (--> much better testreports !)
100       and then update outputs of tutorial_global_oce_biogeo
101    o pkg/mom_fluxform:
102      add a special version of momentum advection intended to conserve momentum
103      next to a bathymetry step or a coastline edge. (default = off = #undef)
104    o new read/write pickup version:
105      - for now, only implemented for main (mdsio) pickup file.
106      - write out only what is needed to restart; merge pickup_nh , pickup_ph
107        and main pickup together.
108      - read meta file; read only what is needed to restart; stop if a field
109        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
110        if it make sense (even if the restart is not perfect).
111      - if no meta file, assume that pickup to read corresponds exactly to
112        a pickup that would currently be written.
113      - read pickup written in the old format (until checkpoint59i) if it
114        recognizes an old meta file (no field-list).
115      - add a meta file in exp. which starts from a pickup: 2 cases:
116        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
117         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
118        b) a meta file describing the content of the associated pickup file
119         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
120    o pkg/mdsio & pkg/rw:
121      - new routine to read a meta file ; new set of routine to read
122        Multiple-fields file (with meta file).
123    o added open boundary conditions capability for seaice
124        HSNOW, HSALT, UICE, and VICE
125    
126    checkpoint59i
127    o adjoint:
128      * fix multiDimAdvection adjoint
129        (partial recomputation problem by TAF for fVerT(:,:,kDown)
130        and comlev1 size definition (maxpass vs. max. number of tracers)
131      * verification/global_ocean.90x45x15 adjoint now tests
132        NLFS and multiDimAdvection using DST3 (=30)
133      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
134    o pkg/kpp: add "_d 0" to real constant (if missing);
135      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
136      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
137    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
138      for internal parameters related to restart process (formerly from PARAMS.h)
139      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
140    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
141      as argument. (only atm2d & obcs write_pickup have not yet been updated)
142    o pkg/monitor:
143      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
144      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
145      - account for deep Atmosphere factor and density factor (anelastic)
146    o added open boundary conditions capability for seaice HEFF and AREA
147    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
148      thermodynamics
149      - requires a little reorganization, which affects the testreport results
150        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
151        so that now the conservative form is tested
152      - add a few comments
153    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
154    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
155    o add new diagnostics to seaice: advective, diffusive fluxes (only for
156      multidim-advection, for scheme 2 they are not filled) and transports,
157      thermodynamic growth rates
158    o change units of EmPmR (inside the code, + within coupling interface)
159      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
160      Affects results @ truncation level (cg2d match) and update output of
161       experiments: lab_sea(6), global_ocean.90x40x15(10),
162      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
163      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
164      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
165      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
166    
167    checkpoint59h
168    o pkg/exf:
169      - improve vectorization by moving if-statement out of loops in
170        exf_mapfields, exf_radiation
171      - exf_bulkformulae.F: introduce 2D fields and vectorize code
172    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
173    o testreport:
174      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
175        monitor & update offline_exf_seaice exp. output.
176      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
177    o pkg/seaice:
178      - bug fix in the evp solver: boundary conditions were affected be
179        masking of zMax/zMin (changes results)
180      - minor bug fix in boundary conditions in seaice_calc_strainrates
181        (changes results for no_slip)
182      - seaice_lsr.F: make interpolation of eta dependent on boundaries
183      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
184      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
185        stress formulation and no-slip boundary conditions
186    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
187      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
188    o pkg/seaice: a first HSALT time stepping equation has been checked in
189    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
190      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
191      without requiring DO-IF statements
192    o pkg/thsice:
193      use continuous power-law function for partition of energy between lateral
194      melting/freezing and thinning/thickening ; old code using step function
195      still available with #undef THSICE_FRACEN_POWERLAW
196      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
197    o testreport: change AD testing : check against results/output_adm.txt
198      using same scripts as for forward test.
199    
200    checkpoint59g
201    o adjoint testing: in preparation for changing testreport:
202      - output format: cost and grad written on separated lines
203      - ad output results in directory "results" (instead of "results_ad")
204    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
205    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
206    o pkg/ecco: allow user defined cost function contributions
207    o testreport:
208      Allow to choose (per experiment) the list of tested output variables
209       and the main variable (used to issue a pass/FAIL ) ;
210      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
211      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
212      Also modify printing of summary:
213       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
214       b) echo the list of tested variables in the individual summary.txt of
215          each experiment.
216    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
217      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
218      (but still depend on the tile decompostion of the domain).
219    o pkg/seaice: change a discretization detail to make the B-grid code
220      "more symmetric". This change is likely to remove all "ridges/leads" that
221      where quasi-aligned with the grid in B-grid solutions. It may also be
222      the solution to the stress coupling issues with the B-grid.
223    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
224      remove .cvsignore from input dir. (since testreport no longer run here).
225    o pkg/thsice:
226     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
227     - fix reshaping of sea-ice just after advection:
228       melt all the ice only if ice-volume is too small.
229     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
230       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
231     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
232    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
233      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
234    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
235      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
236      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
237      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
238      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
239      -> update output.txt
240    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
241     this affects truncation error: -> update output.txt of exp:
242      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
243      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
244    
245    checkpoint59f
246    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
247    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
248      a bounded range (in forward mode)
249    o pkg/ecco, ctrl, autodiff and mom_common:
250     internal parameter controls, completements of implementations
251    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
252    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
253      (not seem any difference in testing results).
254    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
255       at face corners.
256    o pkg/generic_advdiff:
257     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
258      loop range indices for computing vertical advection tendency
259      and do the calculation in the interior only (no overlap) ;
260      for now, only implemented for SOM advection (to save CPU time).
261     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
262    o exch2 adjoint
263      First set of changes:
264      - add exch2 hand-written adjoint templates
265      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
266        This will require cleanup in pkg/autodiff/*.F
267        (changed routines currently kept separate in verif. code/)
268      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
269        that used to hide exch2 or cubed-sphere specific code
270        (commented via 'cph-exch2')
271    o pkg/seaice
272      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
273    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
274       output of global_ocean.cs32x15.thsice .
275    
276    checkpoint59e
277    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
278      for B-grid vector (not yet tested) and C-grid vector (<- only used
279      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
280    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
281      (#ifdef ALLOW_SALT_PLUME)
282    o gather_2d/scatter_2d: removed halo regions
283    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
284      scheme and the corresponding test case (under front_relax dir). For now,
285      only available with Skew-flux form and not yet tested in realistic set-up.
286      adjoint: store directives updated, but gradient checks deteriorated,
287      so maybe GM/Redi adjoint is now broken.
288    o seaice adjoint
289      * add AREA, HEFF, HSNOW as control variable
290        (should not change lab_sea results)
291      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
292    o pkg/seaice:
293      * added computation of saltFlux in seaice_growth;
294        For time being, sea ice salinity is assumed constant
295        contribution of snow flooding to freshening of sea ice is neglected.
296        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
297        defaults to 0.0 in order to maintain backward compatibility.
298        Typical values for SEAICE_salinity are 4 to 10 g/kg.
299      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
300      * added SEAICE_availHeatFrac, which specifies fraction of surface level
301        heat content used to melt or grow ice
302      * commented out cap of HICE: it helps keep ice thinner
303      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
304      * applied OBCS T/S mask to HEFFM sea ice mask
305    
306    checkpoint59d
307    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
308     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
309     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
310    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
311     and change default value of parameter "GM_Small_Number";
312     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
313       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
314       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
315    o pkg/ecco: cost function when applying pkg/smooth to controls
316    o pkg/ctrl: add forcingPrecond run time parameter
317    o pkg/seaice:
318     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
319     - fix bug in metric terms of u-equation in LSR solver (implicit part),
320       changes verification/lab_sea
321     - rearrange implicit part of u-equation in LSR solver to make it easier to
322       read, understand, and debug. This causes changes at the truncation level.
323     - fix (serious) bug in the boundary conditions (sign error in the implicit
324       part) of the LSR solver. Changes all LSR results.
325     - fixed problem with HSNOW initialization to avoid thick snow when AREA
326       is initilized with small values - does not change lab_sea results.
327     - added HsnowFile initialization capability
328    o pkg/smooth: addition to model/src and pkg/ctrl so allow
329     initialization of pkg/smooth and application to control vector
330  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
331  o dependencies: pkg/profiles requires pkg/cal  o dependencies: pkg/profiles requires pkg/cal
332  o pkg/profiles:  o pkg/profiles:
# Line 15  o pkg/profiles: Line 338  o pkg/profiles:
338       that allow you to prepare netcdf input files.       that allow you to prepare netcdf input files.
339   - also modified: cleaner include statements, cleaner error print statements,   - also modified: cleaner include statements, cleaner error print statements,
340     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.
   
341  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
342  o pkg/seaice:  o pkg/seaice:
343   - 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 471  o in FFIELDS.h:
471       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
472  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
473  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
474      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
475        are no longer updating the vertical diffusivity array
476        (passed as argument) but are (re-) setting those arrays.
477  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
478    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
479      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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