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revision 1.834 by jmc, Tue Jun 12 16:04:45 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
331    o dependencies: pkg/profiles requires pkg/cal
332    o pkg/profiles:
333     - added option ALLOW_PROFILES_GENERICGRID
334         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
335         that interpolation information (grid points and coefficients) is provided
336         within the netcdf input files.
337         -> sample matlab scripts can be found in MITgcm_contrib/gael
338         that allow you to prepare netcdf input files.
339     - also modified: cleaner include statements, cleaner error print statements,
340       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 137  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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