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revision 1.805 by jmc, Tue May 1 12:29:18 2007 UTC revision 1.888 by mlosch, Fri Oct 5 10:54:31 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 add a little bit of code to gad_os7mp_adv_?.F to help vectorization
8    o add new diagnostics to seaice: advective, diffusive fluxes (only for
9      multidim-advection, for scheme 2 they are not filled) and transports,
10      thermodynamic growth rates
11    o change units of EmPmR (inside the code) from m/s to kg/m2/s (mass flux) but
12      leave input file unchanged. Affects results @ truncation level (cg2d match)
13      and update output of experiments: lab_sea(6), global_ocean.90x40x15(10),
14      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
15      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
16      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
17    
18    checkpoint59h
19    o pkg/exf:
20      - improve vectorization by moving if-statement out of loops in
21        exf_mapfields, exf_radiation
22      - exf_bulkformulae.F: introduce 2D fields and vectorize code
23    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
24    o testreport:
25      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
26        monitor & update offline_exf_seaice exp. output.
27      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
28    o pkg/seaice:
29      - bug fix in the evp solver: boundary conditions were affected be
30        masking of zMax/zMin (changes results)
31      - minor bug fix in boundary conditions in seaice_calc_strainrates
32        (changes results for no_slip)
33      - seaice_lsr.F: make interpolation of eta dependent on boundaries
34      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
35      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
36        stress formulation and no-slip boundary conditions
37    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
38      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
39    o pkg/seaice: a first HSALT time stepping equation has been checked in
40    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
41      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
42      without requiring DO-IF statements
43    o pkg/thsice:
44      use continuous power-law function for partition of energy between lateral
45      melting/freezing and thinning/thickening ; old code using step function
46      still available with #undef THSICE_FRACEN_POWERLAW
47      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
48    o testreport: change AD testing : check against results/output_adm.txt
49      using same scripts as for forward test.
50    
51    checkpoint59g
52    o adjoint testing: in preparation for changing testreport:
53      - output format: cost and grad written on separated lines
54      - ad output results in directory "results" (instead of "results_ad")
55    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
56    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
57    o pkg/ecco: allow user defined cost function contributions
58    o testreport:
59      Allow to choose (per experiment) the list of tested output variables
60       and the main variable (used to issue a pass/FAIL ) ;
61      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
62      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
63      Also modify printing of summary:
64       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
65       b) echo the list of tested variables in the individual summary.txt of
66          each experiment.
67    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
68      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
69      (but still depend on the tile decompostion of the domain).
70    o pkg/seaice: change a discretization detail to make the B-grid code
71      "more symmetric". This change is likely to remove all "ridges/leads" that
72      where quasi-aligned with the grid in B-grid solutions. It may also be
73      the solution to the stress coupling issues with the B-grid.
74    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
75      remove .cvsignore from input dir. (since testreport no longer run here).
76    o pkg/thsice:
77     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
78     - fix reshaping of sea-ice just after advection:
79       melt all the ice only if ice-volume is too small.
80     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
81       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
82     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
83    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
84      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
85    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
86      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
87      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
88      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
89      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
90      -> update output.txt
91    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
92     this affects truncation error: -> update output.txt of exp:
93      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
94      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
95    
96    checkpoint59f
97    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
98    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
99      a bounded range (in forward mode)
100    o pkg/ecco, ctrl, autodiff and mom_common:
101     internal parameter controls, completements of implementations
102    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
103    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
104      (not seem any difference in testing results).
105    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
106       at face corners.
107    o pkg/generic_advdiff:
108     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
109      loop range indices for computing vertical advection tendency
110      and do the calculation in the interior only (no overlap) ;
111      for now, only implemented for SOM advection (to save CPU time).
112     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
113    o exch2 adjoint
114      First set of changes:
115      - add exch2 hand-written adjoint templates
116      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
117        This will require cleanup in pkg/autodiff/*.F
118        (changed routines currently kept separate in verif. code/)
119      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
120        that used to hide exch2 or cubed-sphere specific code
121        (commented via 'cph-exch2')
122    o pkg/seaice
123      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
124    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
125       output of global_ocean.cs32x15.thsice .
126    
127    checkpoint59e
128    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
129      for B-grid vector (not yet tested) and C-grid vector (<- only used
130      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
131    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
132      (#ifdef ALLOW_SALT_PLUME)
133    o gather_2d/scatter_2d: removed halo regions
134    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
135      scheme and the corresponding test case (under front_relax dir). For now,
136      only available with Skew-flux form and not yet tested in realistic set-up.
137      adjoint: store directives updated, but gradient checks deteriorated,
138      so maybe GM/Redi adjoint is now broken.
139    o seaice adjoint
140      * add AREA, HEFF, HSNOW as control variable
141        (should not change lab_sea results)
142      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
143    o pkg/seaice:
144      * added computation of saltFlux in seaice_growth;
145        For time being, sea ice salinity is assumed constant
146        contribution of snow flooding to freshening of sea ice is neglected.
147        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
148        defaults to 0.0 in order to maintain backward compatibility.
149        Typical values for SEAICE_salinity are 4 to 10 g/kg.
150      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
151      * added SEAICE_availHeatFrac, which specifies fraction of surface level
152        heat content used to melt or grow ice
153      * commented out cap of HICE: it helps keep ice thinner
154      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
155      * applied OBCS T/S mask to HEFFM sea ice mask
156    
157    checkpoint59d
158    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
159     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
160     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
161    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
162     and change default value of parameter "GM_Small_Number";
163     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
164       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
165       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
166    o pkg/ecco: cost function when applying pkg/smooth to controls
167    o pkg/ctrl: add forcingPrecond run time parameter
168    o pkg/seaice:
169     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
170     - fix bug in metric terms of u-equation in LSR solver (implicit part),
171       changes verification/lab_sea
172     - rearrange implicit part of u-equation in LSR solver to make it easier to
173       read, understand, and debug. This causes changes at the truncation level.
174     - fix (serious) bug in the boundary conditions (sign error in the implicit
175       part) of the LSR solver. Changes all LSR results.
176     - fixed problem with HSNOW initialization to avoid thick snow when AREA
177       is initilized with small values - does not change lab_sea results.
178     - added HsnowFile initialization capability
179    o pkg/smooth: addition to model/src and pkg/ctrl so allow
180     initialization of pkg/smooth and application to control vector
181    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
182    o dependencies: pkg/profiles requires pkg/cal
183    o pkg/profiles:
184     - added option ALLOW_PROFILES_GENERICGRID
185         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
186         that interpolation information (grid points and coefficients) is provided
187         within the netcdf input files.
188         -> sample matlab scripts can be found in MITgcm_contrib/gael
189         that allow you to prepare netcdf input files.
190     - also modified: cleaner include statements, cleaner error print statements,
191       cleaner stops when error, and more tests of the netcdf input files consistency.
192    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
193    o pkg/seaice:
194     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
195       requires a new routine: seaice_diagnostics_fill.F
196     - make sure that seaice does not move if not forced (pressure replacement
197       method, Hibler and Ip, 1995), changes results
198     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
199     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
200       It is turned off by default (=-1.), because it changes the results.
201     - make it possible to read AREA from a file, too.
202    
203    checkpoint59c
204    o add S/R and diagnostics for oceanic mixed-layer depth
205    o move GMRedi call after all vertical mixing schemes (including KPP)
206    o pkg/thsice:
207     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
208      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
209    o pkg/obcs:
210     - bug fix for balance code
211    o pkg/seaice:
212      - allow values of SEAICE_elasticParm > 1
213      - add new parameter SEAICE_evpTauRelax as an alternative
214        to SEAICE_elasticParm
215      - make lsr boundary conditions free slip (by default), changes result
216      - add code for no slip boundary conditions for lsr
217      - set minimum of zeta to zero (and not 4e8) (changes results)
218      - add a cap on AREA after advecting AREA if seaice_growth is not called
219    o change calculation of Visbeck K:
220      - no longer depend on tapering scheme; instead, compute slope (limited
221        by GM_maxSlope). this is equivalent to what was comuted before with
222        clipping or linear tappering.
223      - fix vertical averaging (wrong by 1/2 level)
224      - leave the old version (but will not be maintained) within
225        #ifdef OLD_VISBECK_CALC / #endif
226      - update output of exp. ideal_2D_oce
227    o change error catch in calc_r_star to improve vectorization
228    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
229      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
230    o adjoint:
231      Re-organized adjoint checkpointing according to Matt Mazloff
232      (but with modifs/completions/cleanups)
233      Storing is now bundled into large arrays to optimized I/O
234      (and second step in cleanup of the_main_loop)
235    
236    checkpoint59b
237    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
238      - export/import (between ocean & coupler) fields needed for ocean DIC.
239    o pkg/seaice:
240      - get rid of three more exchanges seaice_calc_viscosities (required
241        different loop boundaries in seaice_lsr and seaice_ocean_stress)
242      - bug fix in seaice_ocean_stress (update of lab_sea required)
243      - reduce loop boundaries to necessary minimum also in seaice_evp
244      - go back to the old way of computing deltaC/Z as the adjoint likes that
245        better
246    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
247      passive tracer to an Age Tracer) + update output.txt
248    o pkg/exf:
249      - implement A-grid / C-grid selection for wind-stress input files.
250      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
251      for now, in exf_bulk_largeyeager04.F only :
252      - change implementation for case where windspeed + 2. components wind-stress
253        are read-in. AND use rhoConstFresh to convert evap.
254    o pkg/seaice:
255      - use correct EXCH_UV for wind-forcing (on A-grid).
256      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
257        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
258    o pkg/exf:
259      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
260      EXF_INTERPOLATION:
261      - merge global_with_exf/code version of exf_interp_read.F
262        to the main code ;
263      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
264        reading the file ; Important: This options needs to be defined to recover
265        previous code.
266        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
267      - no longer loose real*8 precision along the way when using exf_iprec=64.
268    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
269      - change discretisation of evp-solver in order to avoid another exchange
270        (changes lab_sea) and clean up a little
271      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
272        help the adjoint (this also changes the results slightly)
273      - add a few "_d 0" where they had been missing in seaice_evp.F
274      - cleaning up: remove unused seaice_calc_rhs.F
275    o pkg/exf: some cleaning-up:
276      - change various "constants" into runtime parameters
277      - cleaned-up Large&Yeager04 routine which should eventually
278        replace exf_bulkformulae.F (changed names of S/R and CPP)
279        and merged various ALLOW_ATM_WIND options
280     only used with thsice pkg (in thsice_get_exf.F):
281      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
282        which are used when useStabilityFct_overIce=TRUE (= the default)
283      - change default values of ice & snow emissivity and scale downward LW
284        by ice & snow emissivity.
285    o pkg/thsice:
286     fix few little problems, in thsice_calc_thickn.F:
287      - growth vertically (and not laterally) if iceFrac == iceMaskMax
288      - melt only laterally if hIce < hThinIce (as the comments say)
289      and in thsice_extend.F:
290      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
291      - start to form ice as soon as the minimum ice-volume is reachable.
292     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
293      and cpl_aim+ocn
294    o pkg/kpp
295     - move computation of surface related input fields to KPP into a new
296       subroutine kpp_forcing_surf.F
297     - remove wrong (within bi,bj loops) EXCH calls.
298     - little cleaning (add argument myThid in last position, cvs header ...)
299     - for now, fix conservation problem by exchanging KPPviscAz (may not
300       be the best fix)
301    o pkg/seaice
302     - check for inconsistent evp parameter/cpp-flag combination
303     - remove leftover errIO flat for obsolete name list error handling
304    o OpenAD
305     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
306    
307  checkpoint59a  checkpoint59a
308  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
309  o pkg/thsice: rename run-time parameters:  o pkg/thsice: rename run-time parameters:
# Line 22  o in FFIELDS.h: Line 322  o in FFIELDS.h:
322       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
323  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
324  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
325      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
326        are no longer updating the vertical diffusivity array
327        (passed as argument) but are (re-) setting those arrays.
328  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
329    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
330      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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