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revision 1.800 by mlosch, Tue Apr 24 11:24:37 2007 UTC revision 1.898 by jmc, Tue Oct 23 16:19:50 2007 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o new read/write pickup version:
8      - for now, only implemented for main (mdsio) pickup file.
9      - write out only what is needed to restart; merge pickup_nh , pickup_ph
10        and main pickup together.
11      - read meta file; read only what is needed to restart; stop if a field
12        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
13        if it make sense (even if the restart is not perfect).
14      - if no meta file, assume that pickup to read corresponds exactly to
15        a pickup that would currently be written.
16      - read pickup written in the old format (until checkpoint59i) if it
17        recognizes an old meta file (no field-list).
18      - add a meta file in exp. which starts from a pickup: 2 cases:
19        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
20         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
21        b) a meta file describing the content of the associated pickup file
22         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
23    o pkg/mdsio & pkg/rw:
24      - new routine to read a meta file ; new set of routine to read
25        Multiple-fields file (with meta file).
26    o added open boundary conditions capability for seaice HSNOW and HSALT
27    
28    checkpoint59i
29    o adjoint:
30      * fix multiDimAdvection adjoint
31        (partial recomputation problem by TAF for fVerT(:,:,kDown)
32        and comlev1 size definition (maxpass vs. max. number of tracers)
33      * verification/global_ocean.90x45x15 adjoint now tests
34        NLFS and multiDimAdvection using DST3 (=30)
35      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
36    o pkg/kpp: add "_d 0" to real constant (if missing);
37      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
38      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
39    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
40      for internal parameters related to restart process (formerly from PARAMS.h)
41      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
42    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
43      as argument. (only atm2d & obcs write_pickup have not yet been updated)
44    o pkg/monitor:
45      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
46      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
47      - account for deep Atmosphere factor and density factor (anelastic)
48    o added open boundary conditions capability for seaice HEFF and AREA
49    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
50      thermodynamics
51      - requires a little reorganization, which affects the testreport results
52        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
53        so that now the conservative form is tested
54      - add a few comments
55    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
56    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
57    o add new diagnostics to seaice: advective, diffusive fluxes (only for
58      multidim-advection, for scheme 2 they are not filled) and transports,
59      thermodynamic growth rates
60    o change units of EmPmR (inside the code) from m/s to kg/m2/s (mass flux) but
61      leave input file unchanged. Affects results @ truncation level (cg2d match)
62      and update output of experiments: lab_sea(6), global_ocean.90x40x15(10),
63      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
64      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
65      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
66    
67    checkpoint59h
68    o pkg/exf:
69      - improve vectorization by moving if-statement out of loops in
70        exf_mapfields, exf_radiation
71      - exf_bulkformulae.F: introduce 2D fields and vectorize code
72    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
73    o testreport:
74      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
75        monitor & update offline_exf_seaice exp. output.
76      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
77    o pkg/seaice:
78      - bug fix in the evp solver: boundary conditions were affected be
79        masking of zMax/zMin (changes results)
80      - minor bug fix in boundary conditions in seaice_calc_strainrates
81        (changes results for no_slip)
82      - seaice_lsr.F: make interpolation of eta dependent on boundaries
83      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
84      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
85        stress formulation and no-slip boundary conditions
86    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
87      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
88    o pkg/seaice: a first HSALT time stepping equation has been checked in
89    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
90      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
91      without requiring DO-IF statements
92    o pkg/thsice:
93      use continuous power-law function for partition of energy between lateral
94      melting/freezing and thinning/thickening ; old code using step function
95      still available with #undef THSICE_FRACEN_POWERLAW
96      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
97    o testreport: change AD testing : check against results/output_adm.txt
98      using same scripts as for forward test.
99    
100    checkpoint59g
101    o adjoint testing: in preparation for changing testreport:
102      - output format: cost and grad written on separated lines
103      - ad output results in directory "results" (instead of "results_ad")
104    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
105    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
106    o pkg/ecco: allow user defined cost function contributions
107    o testreport:
108      Allow to choose (per experiment) the list of tested output variables
109       and the main variable (used to issue a pass/FAIL ) ;
110      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
111      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
112      Also modify printing of summary:
113       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
114       b) echo the list of tested variables in the individual summary.txt of
115          each experiment.
116    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
117      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
118      (but still depend on the tile decompostion of the domain).
119    o pkg/seaice: change a discretization detail to make the B-grid code
120      "more symmetric". This change is likely to remove all "ridges/leads" that
121      where quasi-aligned with the grid in B-grid solutions. It may also be
122      the solution to the stress coupling issues with the B-grid.
123    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
124      remove .cvsignore from input dir. (since testreport no longer run here).
125    o pkg/thsice:
126     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
127     - fix reshaping of sea-ice just after advection:
128       melt all the ice only if ice-volume is too small.
129     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
130       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
131     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
132    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
133      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
134    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
135      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
136      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
137      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
138      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
139      -> update output.txt
140    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
141     this affects truncation error: -> update output.txt of exp:
142      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
143      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
144    
145    checkpoint59f
146    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
147    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
148      a bounded range (in forward mode)
149    o pkg/ecco, ctrl, autodiff and mom_common:
150     internal parameter controls, completements of implementations
151    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
152    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
153      (not seem any difference in testing results).
154    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
155       at face corners.
156    o pkg/generic_advdiff:
157     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
158      loop range indices for computing vertical advection tendency
159      and do the calculation in the interior only (no overlap) ;
160      for now, only implemented for SOM advection (to save CPU time).
161     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
162    o exch2 adjoint
163      First set of changes:
164      - add exch2 hand-written adjoint templates
165      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
166        This will require cleanup in pkg/autodiff/*.F
167        (changed routines currently kept separate in verif. code/)
168      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
169        that used to hide exch2 or cubed-sphere specific code
170        (commented via 'cph-exch2')
171    o pkg/seaice
172      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
173    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
174       output of global_ocean.cs32x15.thsice .
175    
176    checkpoint59e
177    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
178      for B-grid vector (not yet tested) and C-grid vector (<- only used
179      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
180    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
181      (#ifdef ALLOW_SALT_PLUME)
182    o gather_2d/scatter_2d: removed halo regions
183    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
184      scheme and the corresponding test case (under front_relax dir). For now,
185      only available with Skew-flux form and not yet tested in realistic set-up.
186      adjoint: store directives updated, but gradient checks deteriorated,
187      so maybe GM/Redi adjoint is now broken.
188    o seaice adjoint
189      * add AREA, HEFF, HSNOW as control variable
190        (should not change lab_sea results)
191      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
192    o pkg/seaice:
193      * added computation of saltFlux in seaice_growth;
194        For time being, sea ice salinity is assumed constant
195        contribution of snow flooding to freshening of sea ice is neglected.
196        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
197        defaults to 0.0 in order to maintain backward compatibility.
198        Typical values for SEAICE_salinity are 4 to 10 g/kg.
199      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
200      * added SEAICE_availHeatFrac, which specifies fraction of surface level
201        heat content used to melt or grow ice
202      * commented out cap of HICE: it helps keep ice thinner
203      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
204      * applied OBCS T/S mask to HEFFM sea ice mask
205    
206    checkpoint59d
207    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
208     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
209     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
210    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
211     and change default value of parameter "GM_Small_Number";
212     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
213       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
214       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
215    o pkg/ecco: cost function when applying pkg/smooth to controls
216    o pkg/ctrl: add forcingPrecond run time parameter
217    o pkg/seaice:
218     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
219     - fix bug in metric terms of u-equation in LSR solver (implicit part),
220       changes verification/lab_sea
221     - rearrange implicit part of u-equation in LSR solver to make it easier to
222       read, understand, and debug. This causes changes at the truncation level.
223     - fix (serious) bug in the boundary conditions (sign error in the implicit
224       part) of the LSR solver. Changes all LSR results.
225     - fixed problem with HSNOW initialization to avoid thick snow when AREA
226       is initilized with small values - does not change lab_sea results.
227     - added HsnowFile initialization capability
228    o pkg/smooth: addition to model/src and pkg/ctrl so allow
229     initialization of pkg/smooth and application to control vector
230    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
231    o dependencies: pkg/profiles requires pkg/cal
232    o pkg/profiles:
233     - added option ALLOW_PROFILES_GENERICGRID
234         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
235         that interpolation information (grid points and coefficients) is provided
236         within the netcdf input files.
237         -> sample matlab scripts can be found in MITgcm_contrib/gael
238         that allow you to prepare netcdf input files.
239     - also modified: cleaner include statements, cleaner error print statements,
240       cleaner stops when error, and more tests of the netcdf input files consistency.
241    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
242    o pkg/seaice:
243     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
244       requires a new routine: seaice_diagnostics_fill.F
245     - make sure that seaice does not move if not forced (pressure replacement
246       method, Hibler and Ip, 1995), changes results
247     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
248     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
249       It is turned off by default (=-1.), because it changes the results.
250     - make it possible to read AREA from a file, too.
251    
252    checkpoint59c
253    o add S/R and diagnostics for oceanic mixed-layer depth
254    o move GMRedi call after all vertical mixing schemes (including KPP)
255    o pkg/thsice:
256     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
257      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
258    o pkg/obcs:
259     - bug fix for balance code
260    o pkg/seaice:
261      - allow values of SEAICE_elasticParm > 1
262      - add new parameter SEAICE_evpTauRelax as an alternative
263        to SEAICE_elasticParm
264      - make lsr boundary conditions free slip (by default), changes result
265      - add code for no slip boundary conditions for lsr
266      - set minimum of zeta to zero (and not 4e8) (changes results)
267      - add a cap on AREA after advecting AREA if seaice_growth is not called
268    o change calculation of Visbeck K:
269      - no longer depend on tapering scheme; instead, compute slope (limited
270        by GM_maxSlope). this is equivalent to what was comuted before with
271        clipping or linear tappering.
272      - fix vertical averaging (wrong by 1/2 level)
273      - leave the old version (but will not be maintained) within
274        #ifdef OLD_VISBECK_CALC / #endif
275      - update output of exp. ideal_2D_oce
276    o change error catch in calc_r_star to improve vectorization
277    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
278      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
279    o adjoint:
280      Re-organized adjoint checkpointing according to Matt Mazloff
281      (but with modifs/completions/cleanups)
282      Storing is now bundled into large arrays to optimized I/O
283      (and second step in cleanup of the_main_loop)
284    
285    checkpoint59b
286    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
287      - export/import (between ocean & coupler) fields needed for ocean DIC.
288    o pkg/seaice:
289      - get rid of three more exchanges seaice_calc_viscosities (required
290        different loop boundaries in seaice_lsr and seaice_ocean_stress)
291      - bug fix in seaice_ocean_stress (update of lab_sea required)
292      - reduce loop boundaries to necessary minimum also in seaice_evp
293      - go back to the old way of computing deltaC/Z as the adjoint likes that
294        better
295    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
296      passive tracer to an Age Tracer) + update output.txt
297    o pkg/exf:
298      - implement A-grid / C-grid selection for wind-stress input files.
299      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
300      for now, in exf_bulk_largeyeager04.F only :
301      - change implementation for case where windspeed + 2. components wind-stress
302        are read-in. AND use rhoConstFresh to convert evap.
303    o pkg/seaice:
304      - use correct EXCH_UV for wind-forcing (on A-grid).
305      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
306        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
307    o pkg/exf:
308      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
309      EXF_INTERPOLATION:
310      - merge global_with_exf/code version of exf_interp_read.F
311        to the main code ;
312      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
313        reading the file ; Important: This options needs to be defined to recover
314        previous code.
315        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
316      - no longer loose real*8 precision along the way when using exf_iprec=64.
317    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
318      - change discretisation of evp-solver in order to avoid another exchange
319        (changes lab_sea) and clean up a little
320      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
321        help the adjoint (this also changes the results slightly)
322      - add a few "_d 0" where they had been missing in seaice_evp.F
323      - cleaning up: remove unused seaice_calc_rhs.F
324    o pkg/exf: some cleaning-up:
325      - change various "constants" into runtime parameters
326      - cleaned-up Large&Yeager04 routine which should eventually
327        replace exf_bulkformulae.F (changed names of S/R and CPP)
328        and merged various ALLOW_ATM_WIND options
329     only used with thsice pkg (in thsice_get_exf.F):
330      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
331        which are used when useStabilityFct_overIce=TRUE (= the default)
332      - change default values of ice & snow emissivity and scale downward LW
333        by ice & snow emissivity.
334    o pkg/thsice:
335     fix few little problems, in thsice_calc_thickn.F:
336      - growth vertically (and not laterally) if iceFrac == iceMaskMax
337      - melt only laterally if hIce < hThinIce (as the comments say)
338      and in thsice_extend.F:
339      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
340      - start to form ice as soon as the minimum ice-volume is reachable.
341     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
342      and cpl_aim+ocn
343    o pkg/kpp
344     - move computation of surface related input fields to KPP into a new
345       subroutine kpp_forcing_surf.F
346     - remove wrong (within bi,bj loops) EXCH calls.
347     - little cleaning (add argument myThid in last position, cvs header ...)
348     - for now, fix conservation problem by exchanging KPPviscAz (may not
349       be the best fix)
350    o pkg/seaice
351     - check for inconsistent evp parameter/cpp-flag combination
352     - remove leftover errIO flat for obsolete name list error handling
353    o OpenAD
354     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
355    
356    checkpoint59a
357    o pkg/seaice: some parameter clarifications and a little bit of clean up
358    o pkg/thsice: rename run-time parameters:
359       himin       -> hIceMin
360       himin0      -> hThinIce
361       hihig       -> hThickIce
362       i0          -> i0swFrac
363       transCoef   -> bMeltCoef
364       frac_energy -> fracMelting
365      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
366       with default values (for now) that do not change the results.
367      remove old version of thsice vars advection in pkg/seaice.
368    o in FFIELDS.h:
369      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
370      - make pLoad & sIceLoad always available (but still only used if
371         ATMOSPHERIC_LOADING is #define).
372  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
373  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
374      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
375        are no longer updating the vertical diffusivity array
376        (passed as argument) but are (re-) setting those arrays.
377  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
378    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
379      cgrid-lsr and evp solver      cgrid-lsr and evp solver
# Line 26  o pkg/seaice: fix bug in evp solver, whi Line 393  o pkg/seaice: fix bug in evp solver, whi
393      of evp, complete rewrite for lsr case (latter is does not yet work      of evp, complete rewrite for lsr case (latter is does not yet work
394      in all cases)      in all cases)
395  o pkg/kpp: add code to have mixing in shelf ice caverns  o pkg/kpp: add code to have mixing in shelf ice caverns
396      - add myThid to all kpp routines (long overdue)
397    
398  checkpoint59  checkpoint59
399  o pkg/exf:  o pkg/exf:

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