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revision 1.804 by mlosch, Tue May 1 04:10:31 2007 UTC revision 1.900 by jmc, Sun Oct 28 21:39:40 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/mom_fluxform:
8      add a special version of momentum advection intended to conserve momentum
9      next to a bathymetry step or a coastline edge. (default = off = #undef)
10    o new read/write pickup version:
11      - for now, only implemented for main (mdsio) pickup file.
12      - write out only what is needed to restart; merge pickup_nh , pickup_ph
13        and main pickup together.
14      - read meta file; read only what is needed to restart; stop if a field
15        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
16        if it make sense (even if the restart is not perfect).
17      - if no meta file, assume that pickup to read corresponds exactly to
18        a pickup that would currently be written.
19      - read pickup written in the old format (until checkpoint59i) if it
20        recognizes an old meta file (no field-list).
21      - add a meta file in exp. which starts from a pickup: 2 cases:
22        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
23         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
24        b) a meta file describing the content of the associated pickup file
25         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
26    o pkg/mdsio & pkg/rw:
27      - new routine to read a meta file ; new set of routine to read
28        Multiple-fields file (with meta file).
29    o added open boundary conditions capability for seaice
30        HSNOW, HSALT, UICE, and VICE
31    
32    checkpoint59i
33    o adjoint:
34      * fix multiDimAdvection adjoint
35        (partial recomputation problem by TAF for fVerT(:,:,kDown)
36        and comlev1 size definition (maxpass vs. max. number of tracers)
37      * verification/global_ocean.90x45x15 adjoint now tests
38        NLFS and multiDimAdvection using DST3 (=30)
39      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
40    o pkg/kpp: add "_d 0" to real constant (if missing);
41      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
42      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
43    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
44      for internal parameters related to restart process (formerly from PARAMS.h)
45      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
46    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
47      as argument. (only atm2d & obcs write_pickup have not yet been updated)
48    o pkg/monitor:
49      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
50      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
51      - account for deep Atmosphere factor and density factor (anelastic)
52    o added open boundary conditions capability for seaice HEFF and AREA
53    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
54      thermodynamics
55      - requires a little reorganization, which affects the testreport results
56        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
57        so that now the conservative form is tested
58      - add a few comments
59    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
60    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
61    o add new diagnostics to seaice: advective, diffusive fluxes (only for
62      multidim-advection, for scheme 2 they are not filled) and transports,
63      thermodynamic growth rates
64    o change units of EmPmR (inside the code) from m/s to kg/m2/s (mass flux) but
65      leave input file unchanged. Affects results @ truncation level (cg2d match)
66      and update output of experiments: lab_sea(6), global_ocean.90x40x15(10),
67      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
68      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
69      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
70    
71    checkpoint59h
72    o pkg/exf:
73      - improve vectorization by moving if-statement out of loops in
74        exf_mapfields, exf_radiation
75      - exf_bulkformulae.F: introduce 2D fields and vectorize code
76    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
77    o testreport:
78      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
79        monitor & update offline_exf_seaice exp. output.
80      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
81    o pkg/seaice:
82      - bug fix in the evp solver: boundary conditions were affected be
83        masking of zMax/zMin (changes results)
84      - minor bug fix in boundary conditions in seaice_calc_strainrates
85        (changes results for no_slip)
86      - seaice_lsr.F: make interpolation of eta dependent on boundaries
87      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
88      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
89        stress formulation and no-slip boundary conditions
90    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
91      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
92    o pkg/seaice: a first HSALT time stepping equation has been checked in
93    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
94      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
95      without requiring DO-IF statements
96    o pkg/thsice:
97      use continuous power-law function for partition of energy between lateral
98      melting/freezing and thinning/thickening ; old code using step function
99      still available with #undef THSICE_FRACEN_POWERLAW
100      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
101    o testreport: change AD testing : check against results/output_adm.txt
102      using same scripts as for forward test.
103    
104    checkpoint59g
105    o adjoint testing: in preparation for changing testreport:
106      - output format: cost and grad written on separated lines
107      - ad output results in directory "results" (instead of "results_ad")
108    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
109    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
110    o pkg/ecco: allow user defined cost function contributions
111    o testreport:
112      Allow to choose (per experiment) the list of tested output variables
113       and the main variable (used to issue a pass/FAIL ) ;
114      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
115      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
116      Also modify printing of summary:
117       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
118       b) echo the list of tested variables in the individual summary.txt of
119          each experiment.
120    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
121      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
122      (but still depend on the tile decompostion of the domain).
123    o pkg/seaice: change a discretization detail to make the B-grid code
124      "more symmetric". This change is likely to remove all "ridges/leads" that
125      where quasi-aligned with the grid in B-grid solutions. It may also be
126      the solution to the stress coupling issues with the B-grid.
127    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
128      remove .cvsignore from input dir. (since testreport no longer run here).
129    o pkg/thsice:
130     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
131     - fix reshaping of sea-ice just after advection:
132       melt all the ice only if ice-volume is too small.
133     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
134       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
135     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
136    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
137      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
138    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
139      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
140      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
141      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
142      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
143      -> update output.txt
144    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
145     this affects truncation error: -> update output.txt of exp:
146      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
147      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
148    
149    checkpoint59f
150    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
151    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
152      a bounded range (in forward mode)
153    o pkg/ecco, ctrl, autodiff and mom_common:
154     internal parameter controls, completements of implementations
155    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
156    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
157      (not seem any difference in testing results).
158    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
159       at face corners.
160    o pkg/generic_advdiff:
161     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
162      loop range indices for computing vertical advection tendency
163      and do the calculation in the interior only (no overlap) ;
164      for now, only implemented for SOM advection (to save CPU time).
165     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
166    o exch2 adjoint
167      First set of changes:
168      - add exch2 hand-written adjoint templates
169      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
170        This will require cleanup in pkg/autodiff/*.F
171        (changed routines currently kept separate in verif. code/)
172      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
173        that used to hide exch2 or cubed-sphere specific code
174        (commented via 'cph-exch2')
175    o pkg/seaice
176      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
177    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
178       output of global_ocean.cs32x15.thsice .
179    
180    checkpoint59e
181    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
182      for B-grid vector (not yet tested) and C-grid vector (<- only used
183      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
184    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
185      (#ifdef ALLOW_SALT_PLUME)
186    o gather_2d/scatter_2d: removed halo regions
187    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
188      scheme and the corresponding test case (under front_relax dir). For now,
189      only available with Skew-flux form and not yet tested in realistic set-up.
190      adjoint: store directives updated, but gradient checks deteriorated,
191      so maybe GM/Redi adjoint is now broken.
192    o seaice adjoint
193      * add AREA, HEFF, HSNOW as control variable
194        (should not change lab_sea results)
195      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
196    o pkg/seaice:
197      * added computation of saltFlux in seaice_growth;
198        For time being, sea ice salinity is assumed constant
199        contribution of snow flooding to freshening of sea ice is neglected.
200        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
201        defaults to 0.0 in order to maintain backward compatibility.
202        Typical values for SEAICE_salinity are 4 to 10 g/kg.
203      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
204      * added SEAICE_availHeatFrac, which specifies fraction of surface level
205        heat content used to melt or grow ice
206      * commented out cap of HICE: it helps keep ice thinner
207      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
208      * applied OBCS T/S mask to HEFFM sea ice mask
209    
210    checkpoint59d
211    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
212     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
213     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
214    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
215     and change default value of parameter "GM_Small_Number";
216     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
217       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
218       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
219    o pkg/ecco: cost function when applying pkg/smooth to controls
220    o pkg/ctrl: add forcingPrecond run time parameter
221    o pkg/seaice:
222     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
223     - fix bug in metric terms of u-equation in LSR solver (implicit part),
224       changes verification/lab_sea
225     - rearrange implicit part of u-equation in LSR solver to make it easier to
226       read, understand, and debug. This causes changes at the truncation level.
227     - fix (serious) bug in the boundary conditions (sign error in the implicit
228       part) of the LSR solver. Changes all LSR results.
229     - fixed problem with HSNOW initialization to avoid thick snow when AREA
230       is initilized with small values - does not change lab_sea results.
231     - added HsnowFile initialization capability
232    o pkg/smooth: addition to model/src and pkg/ctrl so allow
233     initialization of pkg/smooth and application to control vector
234    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
235    o dependencies: pkg/profiles requires pkg/cal
236    o pkg/profiles:
237     - added option ALLOW_PROFILES_GENERICGRID
238         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
239         that interpolation information (grid points and coefficients) is provided
240         within the netcdf input files.
241         -> sample matlab scripts can be found in MITgcm_contrib/gael
242         that allow you to prepare netcdf input files.
243     - also modified: cleaner include statements, cleaner error print statements,
244       cleaner stops when error, and more tests of the netcdf input files consistency.
245    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
246    o pkg/seaice:
247     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
248       requires a new routine: seaice_diagnostics_fill.F
249     - make sure that seaice does not move if not forced (pressure replacement
250       method, Hibler and Ip, 1995), changes results
251     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
252     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
253       It is turned off by default (=-1.), because it changes the results.
254     - make it possible to read AREA from a file, too.
255    
256    checkpoint59c
257    o add S/R and diagnostics for oceanic mixed-layer depth
258    o move GMRedi call after all vertical mixing schemes (including KPP)
259    o pkg/thsice:
260     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
261      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
262    o pkg/obcs:
263     - bug fix for balance code
264    o pkg/seaice:
265      - allow values of SEAICE_elasticParm > 1
266      - add new parameter SEAICE_evpTauRelax as an alternative
267        to SEAICE_elasticParm
268      - make lsr boundary conditions free slip (by default), changes result
269      - add code for no slip boundary conditions for lsr
270      - set minimum of zeta to zero (and not 4e8) (changes results)
271      - add a cap on AREA after advecting AREA if seaice_growth is not called
272    o change calculation of Visbeck K:
273      - no longer depend on tapering scheme; instead, compute slope (limited
274        by GM_maxSlope). this is equivalent to what was comuted before with
275        clipping or linear tappering.
276      - fix vertical averaging (wrong by 1/2 level)
277      - leave the old version (but will not be maintained) within
278        #ifdef OLD_VISBECK_CALC / #endif
279      - update output of exp. ideal_2D_oce
280    o change error catch in calc_r_star to improve vectorization
281    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
282      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
283    o adjoint:
284      Re-organized adjoint checkpointing according to Matt Mazloff
285      (but with modifs/completions/cleanups)
286      Storing is now bundled into large arrays to optimized I/O
287      (and second step in cleanup of the_main_loop)
288    
289    checkpoint59b
290    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
291      - export/import (between ocean & coupler) fields needed for ocean DIC.
292    o pkg/seaice:
293      - get rid of three more exchanges seaice_calc_viscosities (required
294        different loop boundaries in seaice_lsr and seaice_ocean_stress)
295      - bug fix in seaice_ocean_stress (update of lab_sea required)
296      - reduce loop boundaries to necessary minimum also in seaice_evp
297      - go back to the old way of computing deltaC/Z as the adjoint likes that
298        better
299    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
300      passive tracer to an Age Tracer) + update output.txt
301    o pkg/exf:
302      - implement A-grid / C-grid selection for wind-stress input files.
303      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
304      for now, in exf_bulk_largeyeager04.F only :
305      - change implementation for case where windspeed + 2. components wind-stress
306        are read-in. AND use rhoConstFresh to convert evap.
307    o pkg/seaice:
308      - use correct EXCH_UV for wind-forcing (on A-grid).
309      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
310        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
311    o pkg/exf:
312      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
313      EXF_INTERPOLATION:
314      - merge global_with_exf/code version of exf_interp_read.F
315        to the main code ;
316      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
317        reading the file ; Important: This options needs to be defined to recover
318        previous code.
319        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
320      - no longer loose real*8 precision along the way when using exf_iprec=64.
321    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
322      - change discretisation of evp-solver in order to avoid another exchange
323        (changes lab_sea) and clean up a little
324      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
325        help the adjoint (this also changes the results slightly)
326      - add a few "_d 0" where they had been missing in seaice_evp.F
327      - cleaning up: remove unused seaice_calc_rhs.F
328    o pkg/exf: some cleaning-up:
329      - change various "constants" into runtime parameters
330      - cleaned-up Large&Yeager04 routine which should eventually
331        replace exf_bulkformulae.F (changed names of S/R and CPP)
332        and merged various ALLOW_ATM_WIND options
333     only used with thsice pkg (in thsice_get_exf.F):
334      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
335        which are used when useStabilityFct_overIce=TRUE (= the default)
336      - change default values of ice & snow emissivity and scale downward LW
337        by ice & snow emissivity.
338    o pkg/thsice:
339     fix few little problems, in thsice_calc_thickn.F:
340      - growth vertically (and not laterally) if iceFrac == iceMaskMax
341      - melt only laterally if hIce < hThinIce (as the comments say)
342      and in thsice_extend.F:
343      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
344      - start to form ice as soon as the minimum ice-volume is reachable.
345     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
346      and cpl_aim+ocn
347    o pkg/kpp
348     - move computation of surface related input fields to KPP into a new
349       subroutine kpp_forcing_surf.F
350     - remove wrong (within bi,bj loops) EXCH calls.
351     - little cleaning (add argument myThid in last position, cvs header ...)
352     - for now, fix conservation problem by exchanging KPPviscAz (may not
353       be the best fix)
354    o pkg/seaice
355     - check for inconsistent evp parameter/cpp-flag combination
356     - remove leftover errIO flat for obsolete name list error handling
357    o OpenAD
358     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
359    
360    checkpoint59a
361  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
362  o pkg/thsice: rename run-time parameters:  o pkg/thsice: rename run-time parameters:
363     himin       -> hIceMin     himin       -> hIceMin
# Line 21  o in FFIELDS.h: Line 375  o in FFIELDS.h:
375       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
376  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
377  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
378      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
379        are no longer updating the vertical diffusivity array
380        (passed as argument) but are (re-) setting those arrays.
381  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
382    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
383      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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