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revision 1.803 by mlosch, Mon Apr 30 22:48:52 2007 UTC revision 1.902 by jmc, Fri Nov 2 15:50:30 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 pkg/dic:
8      - add tons of "_d 0" (--> much better testreports !)
9       and then update outputs of tutorial_global_oce_biogeo
10    o pkg/mom_fluxform:
11      add a special version of momentum advection intended to conserve momentum
12      next to a bathymetry step or a coastline edge. (default = off = #undef)
13    o new read/write pickup version:
14      - for now, only implemented for main (mdsio) pickup file.
15      - write out only what is needed to restart; merge pickup_nh , pickup_ph
16        and main pickup together.
17      - read meta file; read only what is needed to restart; stop if a field
18        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
19        if it make sense (even if the restart is not perfect).
20      - if no meta file, assume that pickup to read corresponds exactly to
21        a pickup that would currently be written.
22      - read pickup written in the old format (until checkpoint59i) if it
23        recognizes an old meta file (no field-list).
24      - add a meta file in exp. which starts from a pickup: 2 cases:
25        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
26         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
27        b) a meta file describing the content of the associated pickup file
28         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
29    o pkg/mdsio & pkg/rw:
30      - new routine to read a meta file ; new set of routine to read
31        Multiple-fields file (with meta file).
32    o added open boundary conditions capability for seaice
33        HSNOW, HSALT, UICE, and VICE
34    
35    checkpoint59i
36    o adjoint:
37      * fix multiDimAdvection adjoint
38        (partial recomputation problem by TAF for fVerT(:,:,kDown)
39        and comlev1 size definition (maxpass vs. max. number of tracers)
40      * verification/global_ocean.90x45x15 adjoint now tests
41        NLFS and multiDimAdvection using DST3 (=30)
42      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
43    o pkg/kpp: add "_d 0" to real constant (if missing);
44      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
45      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
46    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
47      for internal parameters related to restart process (formerly from PARAMS.h)
48      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
49    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
50      as argument. (only atm2d & obcs write_pickup have not yet been updated)
51    o pkg/monitor:
52      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
53      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
54      - account for deep Atmosphere factor and density factor (anelastic)
55    o added open boundary conditions capability for seaice HEFF and AREA
56    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
57      thermodynamics
58      - requires a little reorganization, which affects the testreport results
59        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
60        so that now the conservative form is tested
61      - add a few comments
62    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
63    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
64    o add new diagnostics to seaice: advective, diffusive fluxes (only for
65      multidim-advection, for scheme 2 they are not filled) and transports,
66      thermodynamic growth rates
67    o change units of EmPmR (inside the code, + within coupling interface)
68      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
69      Affects results @ truncation level (cg2d match) and update output of
70       experiments: lab_sea(6), global_ocean.90x40x15(10),
71      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
72      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
73      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
74      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
75    
76    checkpoint59h
77    o pkg/exf:
78      - improve vectorization by moving if-statement out of loops in
79        exf_mapfields, exf_radiation
80      - exf_bulkformulae.F: introduce 2D fields and vectorize code
81    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
82    o testreport:
83      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
84        monitor & update offline_exf_seaice exp. output.
85      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
86    o pkg/seaice:
87      - bug fix in the evp solver: boundary conditions were affected be
88        masking of zMax/zMin (changes results)
89      - minor bug fix in boundary conditions in seaice_calc_strainrates
90        (changes results for no_slip)
91      - seaice_lsr.F: make interpolation of eta dependent on boundaries
92      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
93      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
94        stress formulation and no-slip boundary conditions
95    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
96      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
97    o pkg/seaice: a first HSALT time stepping equation has been checked in
98    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
99      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
100      without requiring DO-IF statements
101    o pkg/thsice:
102      use continuous power-law function for partition of energy between lateral
103      melting/freezing and thinning/thickening ; old code using step function
104      still available with #undef THSICE_FRACEN_POWERLAW
105      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
106    o testreport: change AD testing : check against results/output_adm.txt
107      using same scripts as for forward test.
108    
109    checkpoint59g
110    o adjoint testing: in preparation for changing testreport:
111      - output format: cost and grad written on separated lines
112      - ad output results in directory "results" (instead of "results_ad")
113    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
114    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
115    o pkg/ecco: allow user defined cost function contributions
116    o testreport:
117      Allow to choose (per experiment) the list of tested output variables
118       and the main variable (used to issue a pass/FAIL ) ;
119      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
120      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
121      Also modify printing of summary:
122       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
123       b) echo the list of tested variables in the individual summary.txt of
124          each experiment.
125    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
126      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
127      (but still depend on the tile decompostion of the domain).
128    o pkg/seaice: change a discretization detail to make the B-grid code
129      "more symmetric". This change is likely to remove all "ridges/leads" that
130      where quasi-aligned with the grid in B-grid solutions. It may also be
131      the solution to the stress coupling issues with the B-grid.
132    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
133      remove .cvsignore from input dir. (since testreport no longer run here).
134    o pkg/thsice:
135     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
136     - fix reshaping of sea-ice just after advection:
137       melt all the ice only if ice-volume is too small.
138     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
139       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
140     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
141    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
142      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
143    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
144      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
145      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
146      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
147      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
148      -> update output.txt
149    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
150     this affects truncation error: -> update output.txt of exp:
151      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
152      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
153    
154    checkpoint59f
155    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
156    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
157      a bounded range (in forward mode)
158    o pkg/ecco, ctrl, autodiff and mom_common:
159     internal parameter controls, completements of implementations
160    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
161    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
162      (not seem any difference in testing results).
163    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
164       at face corners.
165    o pkg/generic_advdiff:
166     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
167      loop range indices for computing vertical advection tendency
168      and do the calculation in the interior only (no overlap) ;
169      for now, only implemented for SOM advection (to save CPU time).
170     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
171    o exch2 adjoint
172      First set of changes:
173      - add exch2 hand-written adjoint templates
174      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
175        This will require cleanup in pkg/autodiff/*.F
176        (changed routines currently kept separate in verif. code/)
177      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
178        that used to hide exch2 or cubed-sphere specific code
179        (commented via 'cph-exch2')
180    o pkg/seaice
181      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
182    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
183       output of global_ocean.cs32x15.thsice .
184    
185    checkpoint59e
186    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
187      for B-grid vector (not yet tested) and C-grid vector (<- only used
188      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
189    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
190      (#ifdef ALLOW_SALT_PLUME)
191    o gather_2d/scatter_2d: removed halo regions
192    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
193      scheme and the corresponding test case (under front_relax dir). For now,
194      only available with Skew-flux form and not yet tested in realistic set-up.
195      adjoint: store directives updated, but gradient checks deteriorated,
196      so maybe GM/Redi adjoint is now broken.
197    o seaice adjoint
198      * add AREA, HEFF, HSNOW as control variable
199        (should not change lab_sea results)
200      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
201    o pkg/seaice:
202      * added computation of saltFlux in seaice_growth;
203        For time being, sea ice salinity is assumed constant
204        contribution of snow flooding to freshening of sea ice is neglected.
205        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
206        defaults to 0.0 in order to maintain backward compatibility.
207        Typical values for SEAICE_salinity are 4 to 10 g/kg.
208      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
209      * added SEAICE_availHeatFrac, which specifies fraction of surface level
210        heat content used to melt or grow ice
211      * commented out cap of HICE: it helps keep ice thinner
212      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
213      * applied OBCS T/S mask to HEFFM sea ice mask
214    
215    checkpoint59d
216    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
217     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
218     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
219    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
220     and change default value of parameter "GM_Small_Number";
221     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
222       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
223       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
224    o pkg/ecco: cost function when applying pkg/smooth to controls
225    o pkg/ctrl: add forcingPrecond run time parameter
226    o pkg/seaice:
227     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
228     - fix bug in metric terms of u-equation in LSR solver (implicit part),
229       changes verification/lab_sea
230     - rearrange implicit part of u-equation in LSR solver to make it easier to
231       read, understand, and debug. This causes changes at the truncation level.
232     - fix (serious) bug in the boundary conditions (sign error in the implicit
233       part) of the LSR solver. Changes all LSR results.
234     - fixed problem with HSNOW initialization to avoid thick snow when AREA
235       is initilized with small values - does not change lab_sea results.
236     - added HsnowFile initialization capability
237    o pkg/smooth: addition to model/src and pkg/ctrl so allow
238     initialization of pkg/smooth and application to control vector
239    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
240    o dependencies: pkg/profiles requires pkg/cal
241    o pkg/profiles:
242     - added option ALLOW_PROFILES_GENERICGRID
243         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
244         that interpolation information (grid points and coefficients) is provided
245         within the netcdf input files.
246         -> sample matlab scripts can be found in MITgcm_contrib/gael
247         that allow you to prepare netcdf input files.
248     - also modified: cleaner include statements, cleaner error print statements,
249       cleaner stops when error, and more tests of the netcdf input files consistency.
250    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
251    o pkg/seaice:
252     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
253       requires a new routine: seaice_diagnostics_fill.F
254     - make sure that seaice does not move if not forced (pressure replacement
255       method, Hibler and Ip, 1995), changes results
256     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
257     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
258       It is turned off by default (=-1.), because it changes the results.
259     - make it possible to read AREA from a file, too.
260    
261    checkpoint59c
262    o add S/R and diagnostics for oceanic mixed-layer depth
263    o move GMRedi call after all vertical mixing schemes (including KPP)
264    o pkg/thsice:
265     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
266      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
267    o pkg/obcs:
268     - bug fix for balance code
269    o pkg/seaice:
270      - allow values of SEAICE_elasticParm > 1
271      - add new parameter SEAICE_evpTauRelax as an alternative
272        to SEAICE_elasticParm
273      - make lsr boundary conditions free slip (by default), changes result
274      - add code for no slip boundary conditions for lsr
275      - set minimum of zeta to zero (and not 4e8) (changes results)
276      - add a cap on AREA after advecting AREA if seaice_growth is not called
277    o change calculation of Visbeck K:
278      - no longer depend on tapering scheme; instead, compute slope (limited
279        by GM_maxSlope). this is equivalent to what was comuted before with
280        clipping or linear tappering.
281      - fix vertical averaging (wrong by 1/2 level)
282      - leave the old version (but will not be maintained) within
283        #ifdef OLD_VISBECK_CALC / #endif
284      - update output of exp. ideal_2D_oce
285    o change error catch in calc_r_star to improve vectorization
286    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
287      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
288    o adjoint:
289      Re-organized adjoint checkpointing according to Matt Mazloff
290      (but with modifs/completions/cleanups)
291      Storing is now bundled into large arrays to optimized I/O
292      (and second step in cleanup of the_main_loop)
293    
294    checkpoint59b
295    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
296      - export/import (between ocean & coupler) fields needed for ocean DIC.
297    o pkg/seaice:
298      - get rid of three more exchanges seaice_calc_viscosities (required
299        different loop boundaries in seaice_lsr and seaice_ocean_stress)
300      - bug fix in seaice_ocean_stress (update of lab_sea required)
301      - reduce loop boundaries to necessary minimum also in seaice_evp
302      - go back to the old way of computing deltaC/Z as the adjoint likes that
303        better
304    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
305      passive tracer to an Age Tracer) + update output.txt
306    o pkg/exf:
307      - implement A-grid / C-grid selection for wind-stress input files.
308      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
309      for now, in exf_bulk_largeyeager04.F only :
310      - change implementation for case where windspeed + 2. components wind-stress
311        are read-in. AND use rhoConstFresh to convert evap.
312    o pkg/seaice:
313      - use correct EXCH_UV for wind-forcing (on A-grid).
314      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
315        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
316    o pkg/exf:
317      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
318      EXF_INTERPOLATION:
319      - merge global_with_exf/code version of exf_interp_read.F
320        to the main code ;
321      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
322        reading the file ; Important: This options needs to be defined to recover
323        previous code.
324        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
325      - no longer loose real*8 precision along the way when using exf_iprec=64.
326    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
327      - change discretisation of evp-solver in order to avoid another exchange
328        (changes lab_sea) and clean up a little
329      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
330        help the adjoint (this also changes the results slightly)
331      - add a few "_d 0" where they had been missing in seaice_evp.F
332      - cleaning up: remove unused seaice_calc_rhs.F
333    o pkg/exf: some cleaning-up:
334      - change various "constants" into runtime parameters
335      - cleaned-up Large&Yeager04 routine which should eventually
336        replace exf_bulkformulae.F (changed names of S/R and CPP)
337        and merged various ALLOW_ATM_WIND options
338     only used with thsice pkg (in thsice_get_exf.F):
339      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
340        which are used when useStabilityFct_overIce=TRUE (= the default)
341      - change default values of ice & snow emissivity and scale downward LW
342        by ice & snow emissivity.
343    o pkg/thsice:
344     fix few little problems, in thsice_calc_thickn.F:
345      - growth vertically (and not laterally) if iceFrac == iceMaskMax
346      - melt only laterally if hIce < hThinIce (as the comments say)
347      and in thsice_extend.F:
348      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
349      - start to form ice as soon as the minimum ice-volume is reachable.
350     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
351      and cpl_aim+ocn
352    o pkg/kpp
353     - move computation of surface related input fields to KPP into a new
354       subroutine kpp_forcing_surf.F
355     - remove wrong (within bi,bj loops) EXCH calls.
356     - little cleaning (add argument myThid in last position, cvs header ...)
357     - for now, fix conservation problem by exchanging KPPviscAz (may not
358       be the best fix)
359    o pkg/seaice
360     - check for inconsistent evp parameter/cpp-flag combination
361     - remove leftover errIO flat for obsolete name list error handling
362    o OpenAD
363     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
364    
365    checkpoint59a
366  o pkg/seaice: some parameter clarifications and a little bit of clean up  o pkg/seaice: some parameter clarifications and a little bit of clean up
367  o pkg/thsice: rename run-time parameters:  o pkg/thsice: rename run-time parameters:
368     himin       -> hIceMin     himin       -> hIceMin
# Line 21  o in FFIELDS.h: Line 380  o in FFIELDS.h:
380       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
381  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
382  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
383      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
384        are no longer updating the vertical diffusivity array
385        (passed as argument) but are (re-) setting those arrays.
386  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
387    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
388      cgrid-lsr and evp solver      cgrid-lsr and evp solver
# Line 41  o pkg/seaice: fix bug in evp solver, whi Line 402  o pkg/seaice: fix bug in evp solver, whi
402      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
403      in all cases)      in all cases)
404  o pkg/kpp: add code to have mixing in shelf ice caverns  o pkg/kpp: add code to have mixing in shelf ice caverns
405      - add myThid to all kpp routines (long overdue)
406    
407  checkpoint59  checkpoint59
408  o pkg/exf:  o pkg/exf:

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