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revision 1.832 by mlosch, Wed Jun 6 14:37:14 2007 UTC revision 1.947 by mlosch, Fri Jan 25 16:03:06 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: rewrite of exf_getffieldrec.F to properly deal with year
8      transitions for useExfYearlyFields
9      - add new subroutine that determines the file to read from for
10        use*YearlyFields = .TRUE. and .FALSE.
11    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
12      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
13      subroutines (which could be generated from a template, because they are
14      almost identical), for now they are included in obcs_prescribe_read.F for
15      simplicity
16    o pkg/exf:
17      - add a little more diagnostic to exf_interp_read (in analogy to
18        mds_read_field, can be turned off with debugLevel < debugLevA=1)
19      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
20        ugly but fast by unrolling short inner loops, inserting a unroll=8
21        directive in routine lagran, and splitting a loop and making do while the
22        outermost loop (the latter requires the intoduction of index arrays)
23    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
24    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
25      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
26    o verification/seaice_obcs: updated for restart test and latest options
27    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
28      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
29      for now this is only available for the C-grid code and also within
30      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
31    
32    checkpoint59m
33    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
34      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
35    o gad_som : fix flux output (& diagnostics) to have same units as other  
36      advection scheme fluxes (was previously multiplied by deltaT).  
37    o added verification/seaice_obcs both to test seaice open boundaries
38      and to provide an example matlab scrpt for generating them
39    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
40    o pkg/salt_plume: clean up salt_plume_frac.F to
41      remove redundancy in PlumeMethod 1 and 4
42    o pkg/kpp: added saltplume diagnostics
43    o pkg/obcs and pkg/seaice:
44      - do not set uice and vice to zero when OB*icefile are unspecified
45      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
46      - moved seaice tracer obcs after call to seaice_growth
47    o pkg/salt_plume: added various options for salt plume depth
48      criterion and for vertical distribution of the salt
49    
50    checkpoint59l
51    o pkg/ptracers: new version of ptracers pickup:
52      read meta file and write only fields which are needed to restart.
53      ( same logic as main pickup file ; also using pickupStrictlyMatch )
54    o pkg/seaice:
55      - add timescale for melting due to warm mixed layer as a means of
56        setting SEAICE_availHeatFrac more conveniently
57      - add a CPP-flag/runtime parameter check for flooding algorithm
58      - reformulated availHeat in seaice_growth.F to be independent of AREA
59    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
60      unit changes
61    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
62    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
63      SX vector computer.
64    o pkg/seaice:
65      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
66        seaice forcing fields can now be read only through pkg/exf
67      - removed some unused halos
68    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
69    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
70      or U/VICE from U/VWIND before computing U/VSTRESS
71    
72    checkpoint59k
73    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
74      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
75    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
76      all experiments pass when compile with un-initialised var. checking option.
77    o added pkg/salt_plume
78    o script to test restart (for now, in MITgcm_contrib/jmc_script)
79    o pkg/seaice: new read/write pickup version.
80      read meta file and write only fields which are needed to restart.
81      ( same logic as main pickup file ; also using pickupStrictlyMatch )
82    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
83    o lab_sea.hb87: modify the domain & update output.hb87.txt :
84      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
85      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
86      process. Fixed here by closing the domain at the Northern boundary.
87    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
88    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
89      a set of consecutive levels in/from a 3-D array.
90    o pkg/ptracers:
91      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
92      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
93    
94    checkpoint59j
95    o in pkgs: dic, obcs, offline, rbcs:
96      standard way to compute coeff. for time interpolation between 2 time reccords
97      which retains full precision (& make results less dependent on compiler).
98      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
99    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
100      packages instead of reading ice cover and wind speed separately
101    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
102     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
103      to allow to compile customized code before the update)
104    o cleaning-up:
105      - fix CPP instruction syntax in pkg/obcs
106      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
107        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
108      - fix some threads issue in IO parts.
109    o pkg/dic:
110      - add tons of "_d 0" (--> much better testreports !)
111       and then update outputs of tutorial_global_oce_biogeo
112    o pkg/mom_fluxform:
113      add a special version of momentum advection intended to conserve momentum
114      next to a bathymetry step or a coastline edge. (default = off = #undef)
115    o new read/write pickup version:
116      - for now, only implemented for main (mdsio) pickup file.
117      - write out only what is needed to restart; merge pickup_nh , pickup_ph
118        and main pickup together.
119      - read meta file; read only what is needed to restart; stop if a field
120        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
121        if it make sense (even if the restart is not perfect).
122      - if no meta file, assume that pickup to read corresponds exactly to
123        a pickup that would currently be written.
124      - read pickup written in the old format (until checkpoint59i) if it
125        recognizes an old meta file (no field-list).
126      - add a meta file in exp. which starts from a pickup: 2 cases:
127        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
128         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
129        b) a meta file describing the content of the associated pickup file
130         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
131    o pkg/mdsio & pkg/rw:
132      - new routine to read a meta file ; new set of routine to read
133        Multiple-fields file (with meta file).
134    o added open boundary conditions capability for seaice
135        HSNOW, HSALT, UICE, and VICE
136    
137    checkpoint59i
138    o adjoint:
139      * fix multiDimAdvection adjoint
140        (partial recomputation problem by TAF for fVerT(:,:,kDown)
141        and comlev1 size definition (maxpass vs. max. number of tracers)
142      * verification/global_ocean.90x45x15 adjoint now tests
143        NLFS and multiDimAdvection using DST3 (=30)
144      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
145    o pkg/kpp: add "_d 0" to real constant (if missing);
146      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
147      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
148    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
149      for internal parameters related to restart process (formerly from PARAMS.h)
150      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
151    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
152      as argument. (only atm2d & obcs write_pickup have not yet been updated)
153    o pkg/monitor:
154      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
155      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
156      - account for deep Atmosphere factor and density factor (anelastic)
157    o added open boundary conditions capability for seaice HEFF and AREA
158    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
159      thermodynamics
160      - requires a little reorganization, which affects the testreport results
161        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
162        so that now the conservative form is tested
163      - add a few comments
164    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
165    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
166    o add new diagnostics to seaice: advective, diffusive fluxes (only for
167      multidim-advection, for scheme 2 they are not filled) and transports,
168      thermodynamic growth rates
169    o change units of EmPmR (inside the code, + within coupling interface)
170      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
171      Affects results @ truncation level (cg2d match) and update output of
172       experiments: lab_sea(6), global_ocean.90x40x15(10),
173      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
174      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
175      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
176      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
177    
178    checkpoint59h
179    o pkg/exf:
180      - improve vectorization by moving if-statement out of loops in
181        exf_mapfields, exf_radiation
182      - exf_bulkformulae.F: introduce 2D fields and vectorize code
183    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
184    o testreport:
185      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
186        monitor & update offline_exf_seaice exp. output.
187      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
188    o pkg/seaice:
189      - bug fix in the evp solver: boundary conditions were affected be
190        masking of zMax/zMin (changes results)
191      - minor bug fix in boundary conditions in seaice_calc_strainrates
192        (changes results for no_slip)
193      - seaice_lsr.F: make interpolation of eta dependent on boundaries
194      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
195      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
196        stress formulation and no-slip boundary conditions
197    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
198      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
199    o pkg/seaice: a first HSALT time stepping equation has been checked in
200    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
201      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
202      without requiring DO-IF statements
203    o pkg/thsice:
204      use continuous power-law function for partition of energy between lateral
205      melting/freezing and thinning/thickening ; old code using step function
206      still available with #undef THSICE_FRACEN_POWERLAW
207      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
208    o testreport: change AD testing : check against results/output_adm.txt
209      using same scripts as for forward test.
210    
211    checkpoint59g
212    o adjoint testing: in preparation for changing testreport:
213      - output format: cost and grad written on separated lines
214      - ad output results in directory "results" (instead of "results_ad")
215    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
216    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
217    o pkg/ecco: allow user defined cost function contributions
218    o testreport:
219      Allow to choose (per experiment) the list of tested output variables
220       and the main variable (used to issue a pass/FAIL ) ;
221      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
222      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
223      Also modify printing of summary:
224       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
225       b) echo the list of tested variables in the individual summary.txt of
226          each experiment.
227    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
228      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
229      (but still depend on the tile decompostion of the domain).
230    o pkg/seaice: change a discretization detail to make the B-grid code
231      "more symmetric". This change is likely to remove all "ridges/leads" that
232      where quasi-aligned with the grid in B-grid solutions. It may also be
233      the solution to the stress coupling issues with the B-grid.
234    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
235      remove .cvsignore from input dir. (since testreport no longer run here).
236    o pkg/thsice:
237     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
238     - fix reshaping of sea-ice just after advection:
239       melt all the ice only if ice-volume is too small.
240     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
241       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
242     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
243    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
244      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
245    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
246      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
247      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
248      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
249      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
250      -> update output.txt
251    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
252     this affects truncation error: -> update output.txt of exp:
253      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
254      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
255    
256    checkpoint59f
257    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
258    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
259      a bounded range (in forward mode)
260    o pkg/ecco, ctrl, autodiff and mom_common:
261     internal parameter controls, completements of implementations
262    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
263    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
264      (not seem any difference in testing results).
265    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
266       at face corners.
267    o pkg/generic_advdiff:
268     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
269      loop range indices for computing vertical advection tendency
270      and do the calculation in the interior only (no overlap) ;
271      for now, only implemented for SOM advection (to save CPU time).
272     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
273    o exch2 adjoint
274      First set of changes:
275      - add exch2 hand-written adjoint templates
276      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
277        This will require cleanup in pkg/autodiff/*.F
278        (changed routines currently kept separate in verif. code/)
279      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
280        that used to hide exch2 or cubed-sphere specific code
281        (commented via 'cph-exch2')
282    o pkg/seaice
283      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
284    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
285       output of global_ocean.cs32x15.thsice .
286    
287    checkpoint59e
288    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
289      for B-grid vector (not yet tested) and C-grid vector (<- only used
290      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
291    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
292      (#ifdef ALLOW_SALT_PLUME)
293    o gather_2d/scatter_2d: removed halo regions
294    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
295      scheme and the corresponding test case (under front_relax dir). For now,
296      only available with Skew-flux form and not yet tested in realistic set-up.
297      adjoint: store directives updated, but gradient checks deteriorated,
298      so maybe GM/Redi adjoint is now broken.
299    o seaice adjoint
300      * add AREA, HEFF, HSNOW as control variable
301        (should not change lab_sea results)
302      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
303    o pkg/seaice:
304      * added computation of saltFlux in seaice_growth;
305        For time being, sea ice salinity is assumed constant
306        contribution of snow flooding to freshening of sea ice is neglected.
307        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
308        defaults to 0.0 in order to maintain backward compatibility.
309        Typical values for SEAICE_salinity are 4 to 10 g/kg.
310      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
311      * added SEAICE_availHeatFrac, which specifies fraction of surface level
312        heat content used to melt or grow ice
313      * commented out cap of HICE: it helps keep ice thinner
314      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
315      * applied OBCS T/S mask to HEFFM sea ice mask
316    
317    checkpoint59d
318    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
319     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
320     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
321    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
322     and change default value of parameter "GM_Small_Number";
323     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
324       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
325       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
326    o pkg/ecco: cost function when applying pkg/smooth to controls
327    o pkg/ctrl: add forcingPrecond run time parameter
328    o pkg/seaice:
329     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
330     - fix bug in metric terms of u-equation in LSR solver (implicit part),
331       changes verification/lab_sea
332     - rearrange implicit part of u-equation in LSR solver to make it easier to
333       read, understand, and debug. This causes changes at the truncation level.
334     - fix (serious) bug in the boundary conditions (sign error in the implicit
335       part) of the LSR solver. Changes all LSR results.
336     - fixed problem with HSNOW initialization to avoid thick snow when AREA
337       is initilized with small values - does not change lab_sea results.
338     - added HsnowFile initialization capability
339    o pkg/smooth: addition to model/src and pkg/ctrl so allow
340     initialization of pkg/smooth and application to control vector
341    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
342    o dependencies: pkg/profiles requires pkg/cal
343    o pkg/profiles:
344     - added option ALLOW_PROFILES_GENERICGRID
345         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
346         that interpolation information (grid points and coefficients) is provided
347         within the netcdf input files.
348         -> sample matlab scripts can be found in MITgcm_contrib/gael
349         that allow you to prepare netcdf input files.
350     - also modified: cleaner include statements, cleaner error print statements,
351       cleaner stops when error, and more tests of the netcdf input files consistency.
352    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
353  o pkg/seaice:  o pkg/seaice:
354     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
355       requires a new routine: seaice_diagnostics_fill.F
356   - make sure that seaice does not move if not forced (pressure replacement   - make sure that seaice does not move if not forced (pressure replacement
357     method, Hibler and Ip, 1995), changes results     method, Hibler and Ip, 1995), changes results
358   - and new damping criterion for EVP solver according to Hunke, JCP, 2001   - and new damping criterion for EVP solver according to Hunke, JCP, 2001
# Line 134  o in FFIELDS.h: Line 482  o in FFIELDS.h:
482       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
483  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
484  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
485      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
486        are no longer updating the vertical diffusivity array
487        (passed as argument) but are (re-) setting those arrays.
488  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
489    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
490      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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