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revision 1.845 by jmc, Thu Jun 21 18:34:24 2007 UTC revision 1.925 by jmc, Mon Dec 17 22:06:48 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/ptracers: new version of ptracers pickup:
8      read meta file and write only fields which are needed to restart.
9      ( same logic as main pickup file ; also using pickupStrictlyMatch )
10    o pkg/seaice:
11      - add timescale for melting due to warm mixed layer as a means of
12        setting SEAICE_availHeatFrac more conveniently
13      - add a CPP-flag/runtime parameter check for flooding algorithm
14      - reformulated availHeat in seaice_growth.F to be independent of AREA
15    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
16      unit changes
17    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
18    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
19      SX vector computer.
20    o pkg/seaice:
21      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
22        seaice forcing fields can now be read only through pkg/exf
23      - removed some unused halos
24    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
25    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
26      or U/VICE from U/VWIND before computing U/VSTRESS
27    
28    checkpoint59k
29    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
30      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
31    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
32      all experiments pass when compile with un-initialised var. checking option.
33    o added pkg/salt_plume
34    o script to test restart (for now, in MITgcm_contrib/jmc_script)
35    o pkg/seaice: new read/write pickup version.
36      read meta file and write only fields which are needed to restart.
37      ( same logic as main pickup file ; also using pickupStrictlyMatch )
38    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
39    o lab_sea.hb87: modify the domain & update output.hb87.txt :
40      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
41      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
42      process. Fixed here by closing the domain at the Northern boundary.
43    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
44    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
45      a set of consecutive levels in/from a 3-D array.
46    o pkg/ptracers:
47      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
48      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
49    
50    checkpoint59j
51    o in pkgs: dic, obcs, offline, rbcs:
52      standard way to compute coeff. for time interpolation between 2 time reccords
53      which retains full precision (& make results less dependent on compiler).
54      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
55    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
56      packages instead of reading ice cover and wind speed separately
57    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
58     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
59      to allow to compile customized code before the update)
60    o cleaning-up:
61      - fix CPP instruction syntax in pkg/obcs
62      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
63        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
64      - fix some threads issue in IO parts.
65    o pkg/dic:
66      - add tons of "_d 0" (--> much better testreports !)
67       and then update outputs of tutorial_global_oce_biogeo
68    o pkg/mom_fluxform:
69      add a special version of momentum advection intended to conserve momentum
70      next to a bathymetry step or a coastline edge. (default = off = #undef)
71    o new read/write pickup version:
72      - for now, only implemented for main (mdsio) pickup file.
73      - write out only what is needed to restart; merge pickup_nh , pickup_ph
74        and main pickup together.
75      - read meta file; read only what is needed to restart; stop if a field
76        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
77        if it make sense (even if the restart is not perfect).
78      - if no meta file, assume that pickup to read corresponds exactly to
79        a pickup that would currently be written.
80      - read pickup written in the old format (until checkpoint59i) if it
81        recognizes an old meta file (no field-list).
82      - add a meta file in exp. which starts from a pickup: 2 cases:
83        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
84         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
85        b) a meta file describing the content of the associated pickup file
86         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
87    o pkg/mdsio & pkg/rw:
88      - new routine to read a meta file ; new set of routine to read
89        Multiple-fields file (with meta file).
90    o added open boundary conditions capability for seaice
91        HSNOW, HSALT, UICE, and VICE
92    
93    checkpoint59i
94    o adjoint:
95      * fix multiDimAdvection adjoint
96        (partial recomputation problem by TAF for fVerT(:,:,kDown)
97        and comlev1 size definition (maxpass vs. max. number of tracers)
98      * verification/global_ocean.90x45x15 adjoint now tests
99        NLFS and multiDimAdvection using DST3 (=30)
100      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
101    o pkg/kpp: add "_d 0" to real constant (if missing);
102      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
103      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
104    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
105      for internal parameters related to restart process (formerly from PARAMS.h)
106      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
107    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
108      as argument. (only atm2d & obcs write_pickup have not yet been updated)
109    o pkg/monitor:
110      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
111      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
112      - account for deep Atmosphere factor and density factor (anelastic)
113    o added open boundary conditions capability for seaice HEFF and AREA
114    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
115      thermodynamics
116      - requires a little reorganization, which affects the testreport results
117        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
118        so that now the conservative form is tested
119      - add a few comments
120    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
121    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
122    o add new diagnostics to seaice: advective, diffusive fluxes (only for
123      multidim-advection, for scheme 2 they are not filled) and transports,
124      thermodynamic growth rates
125    o change units of EmPmR (inside the code, + within coupling interface)
126      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
127      Affects results @ truncation level (cg2d match) and update output of
128       experiments: lab_sea(6), global_ocean.90x40x15(10),
129      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
130      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
131      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
132      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
133    
134    checkpoint59h
135    o pkg/exf:
136      - improve vectorization by moving if-statement out of loops in
137        exf_mapfields, exf_radiation
138      - exf_bulkformulae.F: introduce 2D fields and vectorize code
139    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
140    o testreport:
141      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
142        monitor & update offline_exf_seaice exp. output.
143      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
144    o pkg/seaice:
145      - bug fix in the evp solver: boundary conditions were affected be
146        masking of zMax/zMin (changes results)
147      - minor bug fix in boundary conditions in seaice_calc_strainrates
148        (changes results for no_slip)
149      - seaice_lsr.F: make interpolation of eta dependent on boundaries
150      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
151      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
152        stress formulation and no-slip boundary conditions
153    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
154      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
155    o pkg/seaice: a first HSALT time stepping equation has been checked in
156    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
157      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
158      without requiring DO-IF statements
159    o pkg/thsice:
160      use continuous power-law function for partition of energy between lateral
161      melting/freezing and thinning/thickening ; old code using step function
162      still available with #undef THSICE_FRACEN_POWERLAW
163      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
164    o testreport: change AD testing : check against results/output_adm.txt
165      using same scripts as for forward test.
166    
167    checkpoint59g
168    o adjoint testing: in preparation for changing testreport:
169      - output format: cost and grad written on separated lines
170      - ad output results in directory "results" (instead of "results_ad")
171    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
172    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
173    o pkg/ecco: allow user defined cost function contributions
174    o testreport:
175      Allow to choose (per experiment) the list of tested output variables
176       and the main variable (used to issue a pass/FAIL ) ;
177      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
178      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
179      Also modify printing of summary:
180       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
181       b) echo the list of tested variables in the individual summary.txt of
182          each experiment.
183    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
184      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
185      (but still depend on the tile decompostion of the domain).
186    o pkg/seaice: change a discretization detail to make the B-grid code
187      "more symmetric". This change is likely to remove all "ridges/leads" that
188      where quasi-aligned with the grid in B-grid solutions. It may also be
189      the solution to the stress coupling issues with the B-grid.
190    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
191      remove .cvsignore from input dir. (since testreport no longer run here).
192    o pkg/thsice:
193     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
194     - fix reshaping of sea-ice just after advection:
195       melt all the ice only if ice-volume is too small.
196     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
197       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
198     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
199    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
200      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
201    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
202      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
203      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
204      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
205      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
206      -> update output.txt
207    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
208     this affects truncation error: -> update output.txt of exp:
209      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
210      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
211    
212    checkpoint59f
213    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
214    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
215      a bounded range (in forward mode)
216    o pkg/ecco, ctrl, autodiff and mom_common:
217     internal parameter controls, completements of implementations
218    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
219    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
220      (not seem any difference in testing results).
221    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
222       at face corners.
223    o pkg/generic_advdiff:
224     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
225      loop range indices for computing vertical advection tendency
226      and do the calculation in the interior only (no overlap) ;
227      for now, only implemented for SOM advection (to save CPU time).
228     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
229    o exch2 adjoint
230      First set of changes:
231      - add exch2 hand-written adjoint templates
232      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
233        This will require cleanup in pkg/autodiff/*.F
234        (changed routines currently kept separate in verif. code/)
235      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
236        that used to hide exch2 or cubed-sphere specific code
237        (commented via 'cph-exch2')
238    o pkg/seaice
239      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
240    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
241       output of global_ocean.cs32x15.thsice .
242    
243    checkpoint59e
244    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
245      for B-grid vector (not yet tested) and C-grid vector (<- only used
246      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
247    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
248      (#ifdef ALLOW_SALT_PLUME)
249    o gather_2d/scatter_2d: removed halo regions
250  o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007  o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
251    scheme and the corresponding test case (under front_relax dir). For now,    scheme and the corresponding test case (under front_relax dir). For now,
252    only available with Skew-flux form and not yet tested in realistic set-up.    only available with Skew-flux form and not yet tested in realistic set-up.
253      adjoint: store directives updated, but gradient checks deteriorated,
254      so maybe GM/Redi adjoint is now broken.
255  o seaice adjoint  o seaice adjoint
256    * add AREA, HEFF, HSNOW as control variable    * add AREA, HEFF, HSNOW as control variable
257      (should not change lab_sea results)      (should not change lab_sea results)
258    * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40    * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
259    o pkg/seaice:
260      * added computation of saltFlux in seaice_growth;
261        For time being, sea ice salinity is assumed constant
262        contribution of snow flooding to freshening of sea ice is neglected.
263        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
264        defaults to 0.0 in order to maintain backward compatibility.
265        Typical values for SEAICE_salinity are 4 to 10 g/kg.
266      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
267      * added SEAICE_availHeatFrac, which specifies fraction of surface level
268        heat content used to melt or grow ice
269      * commented out cap of HICE: it helps keep ice thinner
270      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
271      * applied OBCS T/S mask to HEFFM sea ice mask
272    
273  checkpoint59d  checkpoint59d
274  o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array  o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
# Line 180  o in FFIELDS.h: Line 438  o in FFIELDS.h:
438       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
439  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
440  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
441      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
442        are no longer updating the vertical diffusivity array
443        (passed as argument) but are (re-) setting those arrays.
444  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
445    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
446      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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