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revision 1.796 by mlosch, Sun Apr 22 19:57:13 2007 UTC revision 1.896 by jmc, Sun Oct 21 18:56:16 2007 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint59i
8    o adjoint:
9      * fix multiDimAdvection adjoint
10        (partial recomputation problem by TAF for fVerT(:,:,kDown)
11        and comlev1 size definition (maxpass vs. max. number of tracers)
12      * verification/global_ocean.90x45x15 adjoint now tests
13        NLFS and multiDimAdvection using DST3 (=30)
14      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
15    o pkg/kpp: add "_d 0" to real constant (if missing);
16      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
17      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
18    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
19      for internal parameters related to restart process (formerly from PARAMS.h)
20      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
21    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
22      as argument. (only atm2d & obcs write_pickup have not yet been updated)
23    o pkg/monitor:
24      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
25      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
26      - account for deep Atmosphere factor and density factor (anelastic)
27    o added open boundary conditions capability for seaice HEFF and AREA
28    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
29      thermodynamics
30      - requires a little reorganization, which affects the testreport results
31        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
32        so that now the conservative form is tested
33      - add a few comments
34    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
35    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
36    o add new diagnostics to seaice: advective, diffusive fluxes (only for
37      multidim-advection, for scheme 2 they are not filled) and transports,
38      thermodynamic growth rates
39    o change units of EmPmR (inside the code) from m/s to kg/m2/s (mass flux) but
40      leave input file unchanged. Affects results @ truncation level (cg2d match)
41      and update output of experiments: lab_sea(6), global_ocean.90x40x15(10),
42      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
43      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
44      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
45    
46    checkpoint59h
47    o pkg/exf:
48      - improve vectorization by moving if-statement out of loops in
49        exf_mapfields, exf_radiation
50      - exf_bulkformulae.F: introduce 2D fields and vectorize code
51    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
52    o testreport:
53      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
54        monitor & update offline_exf_seaice exp. output.
55      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
56    o pkg/seaice:
57      - bug fix in the evp solver: boundary conditions were affected be
58        masking of zMax/zMin (changes results)
59      - minor bug fix in boundary conditions in seaice_calc_strainrates
60        (changes results for no_slip)
61      - seaice_lsr.F: make interpolation of eta dependent on boundaries
62      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
63      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
64        stress formulation and no-slip boundary conditions
65    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
66      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
67    o pkg/seaice: a first HSALT time stepping equation has been checked in
68    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
69      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
70      without requiring DO-IF statements
71    o pkg/thsice:
72      use continuous power-law function for partition of energy between lateral
73      melting/freezing and thinning/thickening ; old code using step function
74      still available with #undef THSICE_FRACEN_POWERLAW
75      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
76    o testreport: change AD testing : check against results/output_adm.txt
77      using same scripts as for forward test.
78    
79    checkpoint59g
80    o adjoint testing: in preparation for changing testreport:
81      - output format: cost and grad written on separated lines
82      - ad output results in directory "results" (instead of "results_ad")
83    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
84    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
85    o pkg/ecco: allow user defined cost function contributions
86    o testreport:
87      Allow to choose (per experiment) the list of tested output variables
88       and the main variable (used to issue a pass/FAIL ) ;
89      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
90      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
91      Also modify printing of summary:
92       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
93       b) echo the list of tested variables in the individual summary.txt of
94          each experiment.
95    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
96      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
97      (but still depend on the tile decompostion of the domain).
98    o pkg/seaice: change a discretization detail to make the B-grid code
99      "more symmetric". This change is likely to remove all "ridges/leads" that
100      where quasi-aligned with the grid in B-grid solutions. It may also be
101      the solution to the stress coupling issues with the B-grid.
102    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
103      remove .cvsignore from input dir. (since testreport no longer run here).
104    o pkg/thsice:
105     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
106     - fix reshaping of sea-ice just after advection:
107       melt all the ice only if ice-volume is too small.
108     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
109       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
110     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
111    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
112      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
113    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
114      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
115      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
116      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
117      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
118      -> update output.txt
119    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
120     this affects truncation error: -> update output.txt of exp:
121      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
122      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
123    
124    checkpoint59f
125    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
126    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
127      a bounded range (in forward mode)
128    o pkg/ecco, ctrl, autodiff and mom_common:
129     internal parameter controls, completements of implementations
130    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
131    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
132      (not seem any difference in testing results).
133    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
134       at face corners.
135    o pkg/generic_advdiff:
136     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
137      loop range indices for computing vertical advection tendency
138      and do the calculation in the interior only (no overlap) ;
139      for now, only implemented for SOM advection (to save CPU time).
140     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
141    o exch2 adjoint
142      First set of changes:
143      - add exch2 hand-written adjoint templates
144      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
145        This will require cleanup in pkg/autodiff/*.F
146        (changed routines currently kept separate in verif. code/)
147      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
148        that used to hide exch2 or cubed-sphere specific code
149        (commented via 'cph-exch2')
150    o pkg/seaice
151      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
152    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
153       output of global_ocean.cs32x15.thsice .
154    
155    checkpoint59e
156    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
157      for B-grid vector (not yet tested) and C-grid vector (<- only used
158      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
159    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
160      (#ifdef ALLOW_SALT_PLUME)
161    o gather_2d/scatter_2d: removed halo regions
162    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
163      scheme and the corresponding test case (under front_relax dir). For now,
164      only available with Skew-flux form and not yet tested in realistic set-up.
165      adjoint: store directives updated, but gradient checks deteriorated,
166      so maybe GM/Redi adjoint is now broken.
167    o seaice adjoint
168      * add AREA, HEFF, HSNOW as control variable
169        (should not change lab_sea results)
170      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
171    o pkg/seaice:
172      * added computation of saltFlux in seaice_growth;
173        For time being, sea ice salinity is assumed constant
174        contribution of snow flooding to freshening of sea ice is neglected.
175        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
176        defaults to 0.0 in order to maintain backward compatibility.
177        Typical values for SEAICE_salinity are 4 to 10 g/kg.
178      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
179      * added SEAICE_availHeatFrac, which specifies fraction of surface level
180        heat content used to melt or grow ice
181      * commented out cap of HICE: it helps keep ice thinner
182      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
183      * applied OBCS T/S mask to HEFFM sea ice mask
184    
185    checkpoint59d
186    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
187     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
188     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
189    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
190     and change default value of parameter "GM_Small_Number";
191     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
192       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
193       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
194    o pkg/ecco: cost function when applying pkg/smooth to controls
195    o pkg/ctrl: add forcingPrecond run time parameter
196    o pkg/seaice:
197     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
198     - fix bug in metric terms of u-equation in LSR solver (implicit part),
199       changes verification/lab_sea
200     - rearrange implicit part of u-equation in LSR solver to make it easier to
201       read, understand, and debug. This causes changes at the truncation level.
202     - fix (serious) bug in the boundary conditions (sign error in the implicit
203       part) of the LSR solver. Changes all LSR results.
204     - fixed problem with HSNOW initialization to avoid thick snow when AREA
205       is initilized with small values - does not change lab_sea results.
206     - added HsnowFile initialization capability
207    o pkg/smooth: addition to model/src and pkg/ctrl so allow
208     initialization of pkg/smooth and application to control vector
209    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
210    o dependencies: pkg/profiles requires pkg/cal
211    o pkg/profiles:
212     - added option ALLOW_PROFILES_GENERICGRID
213         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
214         that interpolation information (grid points and coefficients) is provided
215         within the netcdf input files.
216         -> sample matlab scripts can be found in MITgcm_contrib/gael
217         that allow you to prepare netcdf input files.
218     - also modified: cleaner include statements, cleaner error print statements,
219       cleaner stops when error, and more tests of the netcdf input files consistency.
220    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
221    o pkg/seaice:
222     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
223       requires a new routine: seaice_diagnostics_fill.F
224     - make sure that seaice does not move if not forced (pressure replacement
225       method, Hibler and Ip, 1995), changes results
226     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
227     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
228       It is turned off by default (=-1.), because it changes the results.
229     - make it possible to read AREA from a file, too.
230    
231    checkpoint59c
232    o add S/R and diagnostics for oceanic mixed-layer depth
233    o move GMRedi call after all vertical mixing schemes (including KPP)
234    o pkg/thsice:
235     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
236      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
237    o pkg/obcs:
238     - bug fix for balance code
239    o pkg/seaice:
240      - allow values of SEAICE_elasticParm > 1
241      - add new parameter SEAICE_evpTauRelax as an alternative
242        to SEAICE_elasticParm
243      - make lsr boundary conditions free slip (by default), changes result
244      - add code for no slip boundary conditions for lsr
245      - set minimum of zeta to zero (and not 4e8) (changes results)
246      - add a cap on AREA after advecting AREA if seaice_growth is not called
247    o change calculation of Visbeck K:
248      - no longer depend on tapering scheme; instead, compute slope (limited
249        by GM_maxSlope). this is equivalent to what was comuted before with
250        clipping or linear tappering.
251      - fix vertical averaging (wrong by 1/2 level)
252      - leave the old version (but will not be maintained) within
253        #ifdef OLD_VISBECK_CALC / #endif
254      - update output of exp. ideal_2D_oce
255    o change error catch in calc_r_star to improve vectorization
256    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
257      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
258    o adjoint:
259      Re-organized adjoint checkpointing according to Matt Mazloff
260      (but with modifs/completions/cleanups)
261      Storing is now bundled into large arrays to optimized I/O
262      (and second step in cleanup of the_main_loop)
263    
264    checkpoint59b
265    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
266      - export/import (between ocean & coupler) fields needed for ocean DIC.
267    o pkg/seaice:
268      - get rid of three more exchanges seaice_calc_viscosities (required
269        different loop boundaries in seaice_lsr and seaice_ocean_stress)
270      - bug fix in seaice_ocean_stress (update of lab_sea required)
271      - reduce loop boundaries to necessary minimum also in seaice_evp
272      - go back to the old way of computing deltaC/Z as the adjoint likes that
273        better
274    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
275      passive tracer to an Age Tracer) + update output.txt
276    o pkg/exf:
277      - implement A-grid / C-grid selection for wind-stress input files.
278      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
279      for now, in exf_bulk_largeyeager04.F only :
280      - change implementation for case where windspeed + 2. components wind-stress
281        are read-in. AND use rhoConstFresh to convert evap.
282    o pkg/seaice:
283      - use correct EXCH_UV for wind-forcing (on A-grid).
284      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
285        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
286    o pkg/exf:
287      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
288      EXF_INTERPOLATION:
289      - merge global_with_exf/code version of exf_interp_read.F
290        to the main code ;
291      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
292        reading the file ; Important: This options needs to be defined to recover
293        previous code.
294        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
295      - no longer loose real*8 precision along the way when using exf_iprec=64.
296    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
297      - change discretisation of evp-solver in order to avoid another exchange
298        (changes lab_sea) and clean up a little
299      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
300        help the adjoint (this also changes the results slightly)
301      - add a few "_d 0" where they had been missing in seaice_evp.F
302      - cleaning up: remove unused seaice_calc_rhs.F
303    o pkg/exf: some cleaning-up:
304      - change various "constants" into runtime parameters
305      - cleaned-up Large&Yeager04 routine which should eventually
306        replace exf_bulkformulae.F (changed names of S/R and CPP)
307        and merged various ALLOW_ATM_WIND options
308     only used with thsice pkg (in thsice_get_exf.F):
309      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
310        which are used when useStabilityFct_overIce=TRUE (= the default)
311      - change default values of ice & snow emissivity and scale downward LW
312        by ice & snow emissivity.
313    o pkg/thsice:
314     fix few little problems, in thsice_calc_thickn.F:
315      - growth vertically (and not laterally) if iceFrac == iceMaskMax
316      - melt only laterally if hIce < hThinIce (as the comments say)
317      and in thsice_extend.F:
318      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
319      - start to form ice as soon as the minimum ice-volume is reachable.
320     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
321      and cpl_aim+ocn
322    o pkg/kpp
323     - move computation of surface related input fields to KPP into a new
324       subroutine kpp_forcing_surf.F
325     - remove wrong (within bi,bj loops) EXCH calls.
326     - little cleaning (add argument myThid in last position, cvs header ...)
327     - for now, fix conservation problem by exchanging KPPviscAz (may not
328       be the best fix)
329    o pkg/seaice
330     - check for inconsistent evp parameter/cpp-flag combination
331     - remove leftover errIO flat for obsolete name list error handling
332    o OpenAD
333     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
334    
335    checkpoint59a
336    o pkg/seaice: some parameter clarifications and a little bit of clean up
337    o pkg/thsice: rename run-time parameters:
338       himin       -> hIceMin
339       himin0      -> hThinIce
340       hihig       -> hThickIce
341       i0          -> i0swFrac
342       transCoef   -> bMeltCoef
343       frac_energy -> fracMelting
344      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
345       with default values (for now) that do not change the results.
346      remove old version of thsice vars advection in pkg/seaice.
347    o in FFIELDS.h:
348      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
349      - make pLoad & sIceLoad always available (but still only used if
350         ATMOSPHERIC_LOADING is #define).
351    o pkg/kpp: replaced _KPP_RL with _RL
352    o bug fixes for vertical diffusivity computations when both KPP and
353        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
354        are no longer updating the vertical diffusivity array
355        (passed as argument) but are (re-) setting those arrays.
356  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
357    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
358      cgrid-lsr and evp solver      cgrid-lsr and evp solver
# Line 15  o pkg/seaice: fix bug in evp solver, whi Line 364  o pkg/seaice: fix bug in evp solver, whi
364    - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp    - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
365      (to force the user to pick a time step since there is not "safe" way      (to force the user to pick a time step since there is not "safe" way
366      of choosing it)      of choosing it)
367      - add principal stress diagnostics
368      - rearrange fields for evp a little to avoid having to call a: too many
369        exchanges and b: exchanges for stress trensor components which we do
370        not have.
371      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
372        of evp, complete rewrite for lsr case (latter is does not yet work
373        in all cases)
374  o pkg/kpp: add code to have mixing in shelf ice caverns  o pkg/kpp: add code to have mixing in shelf ice caverns
375      - add myThid to all kpp routines (long overdue)
376    
377  checkpoint59  checkpoint59
378  o pkg/exf:  o pkg/exf:

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