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revision 1.803 by mlosch, Mon Apr 30 22:48:52 2007 UTC revision 1.904 by jmc, Mon Nov 5 19:38:59 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 split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
8     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
9      to allow to compile customized code before the update)
10    o cleaning-up:
11      - fix CPP instruction syntax in pkg/obcs
12      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
13        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
14      - fix some threads issue in IO parts.
15    o pkg/dic:
16      - add tons of "_d 0" (--> much better testreports !)
17       and then update outputs of tutorial_global_oce_biogeo
18    o pkg/mom_fluxform:
19      add a special version of momentum advection intended to conserve momentum
20      next to a bathymetry step or a coastline edge. (default = off = #undef)
21    o new read/write pickup version:
22      - for now, only implemented for main (mdsio) pickup file.
23      - write out only what is needed to restart; merge pickup_nh , pickup_ph
24        and main pickup together.
25      - read meta file; read only what is needed to restart; stop if a field
26        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
27        if it make sense (even if the restart is not perfect).
28      - if no meta file, assume that pickup to read corresponds exactly to
29        a pickup that would currently be written.
30      - read pickup written in the old format (until checkpoint59i) if it
31        recognizes an old meta file (no field-list).
32      - add a meta file in exp. which starts from a pickup: 2 cases:
33        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
34         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
35        b) a meta file describing the content of the associated pickup file
36         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
37    o pkg/mdsio & pkg/rw:
38      - new routine to read a meta file ; new set of routine to read
39        Multiple-fields file (with meta file).
40    o added open boundary conditions capability for seaice
41        HSNOW, HSALT, UICE, and VICE
42    
43    checkpoint59i
44    o adjoint:
45      * fix multiDimAdvection adjoint
46        (partial recomputation problem by TAF for fVerT(:,:,kDown)
47        and comlev1 size definition (maxpass vs. max. number of tracers)
48      * verification/global_ocean.90x45x15 adjoint now tests
49        NLFS and multiDimAdvection using DST3 (=30)
50      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
51    o pkg/kpp: add "_d 0" to real constant (if missing);
52      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
53      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
54    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
55      for internal parameters related to restart process (formerly from PARAMS.h)
56      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
57    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
58      as argument. (only atm2d & obcs write_pickup have not yet been updated)
59    o pkg/monitor:
60      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
61      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
62      - account for deep Atmosphere factor and density factor (anelastic)
63    o added open boundary conditions capability for seaice HEFF and AREA
64    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
65      thermodynamics
66      - requires a little reorganization, which affects the testreport results
67        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
68        so that now the conservative form is tested
69      - add a few comments
70    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
71    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
72    o add new diagnostics to seaice: advective, diffusive fluxes (only for
73      multidim-advection, for scheme 2 they are not filled) and transports,
74      thermodynamic growth rates
75    o change units of EmPmR (inside the code, + within coupling interface)
76      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
77      Affects results @ truncation level (cg2d match) and update output of
78       experiments: lab_sea(6), global_ocean.90x40x15(10),
79      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
80      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
81      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
82      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
83    
84    checkpoint59h
85    o pkg/exf:
86      - improve vectorization by moving if-statement out of loops in
87        exf_mapfields, exf_radiation
88      - exf_bulkformulae.F: introduce 2D fields and vectorize code
89    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
90    o testreport:
91      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
92        monitor & update offline_exf_seaice exp. output.
93      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
94    o pkg/seaice:
95      - bug fix in the evp solver: boundary conditions were affected be
96        masking of zMax/zMin (changes results)
97      - minor bug fix in boundary conditions in seaice_calc_strainrates
98        (changes results for no_slip)
99      - seaice_lsr.F: make interpolation of eta dependent on boundaries
100      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
101      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
102        stress formulation and no-slip boundary conditions
103    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
104      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
105    o pkg/seaice: a first HSALT time stepping equation has been checked in
106    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
107      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
108      without requiring DO-IF statements
109    o pkg/thsice:
110      use continuous power-law function for partition of energy between lateral
111      melting/freezing and thinning/thickening ; old code using step function
112      still available with #undef THSICE_FRACEN_POWERLAW
113      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
114    o testreport: change AD testing : check against results/output_adm.txt
115      using same scripts as for forward test.
116    
117    checkpoint59g
118    o adjoint testing: in preparation for changing testreport:
119      - output format: cost and grad written on separated lines
120      - ad output results in directory "results" (instead of "results_ad")
121    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
122    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
123    o pkg/ecco: allow user defined cost function contributions
124    o testreport:
125      Allow to choose (per experiment) the list of tested output variables
126       and the main variable (used to issue a pass/FAIL ) ;
127      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
128      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
129      Also modify printing of summary:
130       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
131       b) echo the list of tested variables in the individual summary.txt of
132          each experiment.
133    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
134      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
135      (but still depend on the tile decompostion of the domain).
136    o pkg/seaice: change a discretization detail to make the B-grid code
137      "more symmetric". This change is likely to remove all "ridges/leads" that
138      where quasi-aligned with the grid in B-grid solutions. It may also be
139      the solution to the stress coupling issues with the B-grid.
140    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
141      remove .cvsignore from input dir. (since testreport no longer run here).
142    o pkg/thsice:
143     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
144     - fix reshaping of sea-ice just after advection:
145       melt all the ice only if ice-volume is too small.
146     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
147       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
148     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
149    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
150      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
151    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
152      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
153      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
154      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
155      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
156      -> update output.txt
157    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
158     this affects truncation error: -> update output.txt of exp:
159      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
160      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
161    
162    checkpoint59f
163    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
164    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
165      a bounded range (in forward mode)
166    o pkg/ecco, ctrl, autodiff and mom_common:
167     internal parameter controls, completements of implementations
168    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
169    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
170      (not seem any difference in testing results).
171    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
172       at face corners.
173    o pkg/generic_advdiff:
174     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
175      loop range indices for computing vertical advection tendency
176      and do the calculation in the interior only (no overlap) ;
177      for now, only implemented for SOM advection (to save CPU time).
178     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
179    o exch2 adjoint
180      First set of changes:
181      - add exch2 hand-written adjoint templates
182      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
183        This will require cleanup in pkg/autodiff/*.F
184        (changed routines currently kept separate in verif. code/)
185      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
186        that used to hide exch2 or cubed-sphere specific code
187        (commented via 'cph-exch2')
188    o pkg/seaice
189      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
190    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
191       output of global_ocean.cs32x15.thsice .
192    
193    checkpoint59e
194    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
195      for B-grid vector (not yet tested) and C-grid vector (<- only used
196      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
197    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
198      (#ifdef ALLOW_SALT_PLUME)
199    o gather_2d/scatter_2d: removed halo regions
200    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
201      scheme and the corresponding test case (under front_relax dir). For now,
202      only available with Skew-flux form and not yet tested in realistic set-up.
203      adjoint: store directives updated, but gradient checks deteriorated,
204      so maybe GM/Redi adjoint is now broken.
205    o seaice adjoint
206      * add AREA, HEFF, HSNOW as control variable
207        (should not change lab_sea results)
208      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
209    o pkg/seaice:
210      * added computation of saltFlux in seaice_growth;
211        For time being, sea ice salinity is assumed constant
212        contribution of snow flooding to freshening of sea ice is neglected.
213        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
214        defaults to 0.0 in order to maintain backward compatibility.
215        Typical values for SEAICE_salinity are 4 to 10 g/kg.
216      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
217      * added SEAICE_availHeatFrac, which specifies fraction of surface level
218        heat content used to melt or grow ice
219      * commented out cap of HICE: it helps keep ice thinner
220      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
221      * applied OBCS T/S mask to HEFFM sea ice mask
222    
223    checkpoint59d
224    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
225     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
226     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
227    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
228     and change default value of parameter "GM_Small_Number";
229     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
230       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
231       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
232    o pkg/ecco: cost function when applying pkg/smooth to controls
233    o pkg/ctrl: add forcingPrecond run time parameter
234    o pkg/seaice:
235     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
236     - fix bug in metric terms of u-equation in LSR solver (implicit part),
237       changes verification/lab_sea
238     - rearrange implicit part of u-equation in LSR solver to make it easier to
239       read, understand, and debug. This causes changes at the truncation level.
240     - fix (serious) bug in the boundary conditions (sign error in the implicit
241       part) of the LSR solver. Changes all LSR results.
242     - fixed problem with HSNOW initialization to avoid thick snow when AREA
243       is initilized with small values - does not change lab_sea results.
244     - added HsnowFile initialization capability
245    o pkg/smooth: addition to model/src and pkg/ctrl so allow
246     initialization of pkg/smooth and application to control vector
247    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
248    o dependencies: pkg/profiles requires pkg/cal
249    o pkg/profiles:
250     - added option ALLOW_PROFILES_GENERICGRID
251         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
252         that interpolation information (grid points and coefficients) is provided
253         within the netcdf input files.
254         -> sample matlab scripts can be found in MITgcm_contrib/gael
255         that allow you to prepare netcdf input files.
256     - also modified: cleaner include statements, cleaner error print statements,
257       cleaner stops when error, and more tests of the netcdf input files consistency.
258    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
259    o pkg/seaice:
260     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
261       requires a new routine: seaice_diagnostics_fill.F
262     - make sure that seaice does not move if not forced (pressure replacement
263       method, Hibler and Ip, 1995), changes results
264     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
265     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
266       It is turned off by default (=-1.), because it changes the results.
267     - make it possible to read AREA from a file, too.
268    
269    checkpoint59c
270    o add S/R and diagnostics for oceanic mixed-layer depth
271    o move GMRedi call after all vertical mixing schemes (including KPP)
272    o pkg/thsice:
273     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
274      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
275    o pkg/obcs:
276     - bug fix for balance code
277    o pkg/seaice:
278      - allow values of SEAICE_elasticParm > 1
279      - add new parameter SEAICE_evpTauRelax as an alternative
280        to SEAICE_elasticParm
281      - make lsr boundary conditions free slip (by default), changes result
282      - add code for no slip boundary conditions for lsr
283      - set minimum of zeta to zero (and not 4e8) (changes results)
284      - add a cap on AREA after advecting AREA if seaice_growth is not called
285    o change calculation of Visbeck K:
286      - no longer depend on tapering scheme; instead, compute slope (limited
287        by GM_maxSlope). this is equivalent to what was comuted before with
288        clipping or linear tappering.
289      - fix vertical averaging (wrong by 1/2 level)
290      - leave the old version (but will not be maintained) within
291        #ifdef OLD_VISBECK_CALC / #endif
292      - update output of exp. ideal_2D_oce
293    o change error catch in calc_r_star to improve vectorization
294    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
295      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
296    o adjoint:
297      Re-organized adjoint checkpointing according to Matt Mazloff
298      (but with modifs/completions/cleanups)
299      Storing is now bundled into large arrays to optimized I/O
300      (and second step in cleanup of the_main_loop)
301    
302    checkpoint59b
303    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
304      - export/import (between ocean & coupler) fields needed for ocean DIC.
305    o pkg/seaice:
306      - get rid of three more exchanges seaice_calc_viscosities (required
307        different loop boundaries in seaice_lsr and seaice_ocean_stress)
308      - bug fix in seaice_ocean_stress (update of lab_sea required)
309      - reduce loop boundaries to necessary minimum also in seaice_evp
310      - go back to the old way of computing deltaC/Z as the adjoint likes that
311        better
312    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
313      passive tracer to an Age Tracer) + update output.txt
314    o pkg/exf:
315      - implement A-grid / C-grid selection for wind-stress input files.
316      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
317      for now, in exf_bulk_largeyeager04.F only :
318      - change implementation for case where windspeed + 2. components wind-stress
319        are read-in. AND use rhoConstFresh to convert evap.
320    o pkg/seaice:
321      - use correct EXCH_UV for wind-forcing (on A-grid).
322      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
323        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
324    o pkg/exf:
325      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
326      EXF_INTERPOLATION:
327      - merge global_with_exf/code version of exf_interp_read.F
328        to the main code ;
329      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
330        reading the file ; Important: This options needs to be defined to recover
331        previous code.
332        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
333      - no longer loose real*8 precision along the way when using exf_iprec=64.
334    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
335      - change discretisation of evp-solver in order to avoid another exchange
336        (changes lab_sea) and clean up a little
337      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
338        help the adjoint (this also changes the results slightly)
339      - add a few "_d 0" where they had been missing in seaice_evp.F
340      - cleaning up: remove unused seaice_calc_rhs.F
341    o pkg/exf: some cleaning-up:
342      - change various "constants" into runtime parameters
343      - cleaned-up Large&Yeager04 routine which should eventually
344        replace exf_bulkformulae.F (changed names of S/R and CPP)
345        and merged various ALLOW_ATM_WIND options
346     only used with thsice pkg (in thsice_get_exf.F):
347      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
348        which are used when useStabilityFct_overIce=TRUE (= the default)
349      - change default values of ice & snow emissivity and scale downward LW
350        by ice & snow emissivity.
351    o pkg/thsice:
352     fix few little problems, in thsice_calc_thickn.F:
353      - growth vertically (and not laterally) if iceFrac == iceMaskMax
354      - melt only laterally if hIce < hThinIce (as the comments say)
355      and in thsice_extend.F:
356      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
357      - start to form ice as soon as the minimum ice-volume is reachable.
358     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
359      and cpl_aim+ocn
360    o pkg/kpp
361     - move computation of surface related input fields to KPP into a new
362       subroutine kpp_forcing_surf.F
363     - remove wrong (within bi,bj loops) EXCH calls.
364     - little cleaning (add argument myThid in last position, cvs header ...)
365     - for now, fix conservation problem by exchanging KPPviscAz (may not
366       be the best fix)
367    o pkg/seaice
368     - check for inconsistent evp parameter/cpp-flag combination
369     - remove leftover errIO flat for obsolete name list error handling
370    o OpenAD
371     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
372    
373    checkpoint59a
374  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
375  o pkg/thsice: rename run-time parameters:  o pkg/thsice: rename run-time parameters:
376     himin       -> hIceMin     himin       -> hIceMin
# Line 21  o in FFIELDS.h: Line 388  o in FFIELDS.h:
388       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
389  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
390  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
391      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
392        are no longer updating the vertical diffusivity array
393        (passed as argument) but are (re-) setting those arrays.
394  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
395    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
396      cgrid-lsr and evp solver      cgrid-lsr and evp solver
# Line 41  o pkg/seaice: fix bug in evp solver, whi Line 410  o pkg/seaice: fix bug in evp solver, whi
410      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
411      in all cases)      in all cases)
412  o pkg/kpp: add code to have mixing in shelf ice caverns  o pkg/kpp: add code to have mixing in shelf ice caverns
413      - add myThid to all kpp routines (long overdue)
414    
415  checkpoint59  checkpoint59
416  o pkg/exf:  o pkg/exf:

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