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revision 1.837 by mlosch, Sun Jun 17 09:22:06 2007 UTC revision 1.922 by dimitri, Wed Dec 5 23:57:44 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/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
8    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
9      SX vector computer.
10    o pkg/seaice:
11      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
12        seaice forcing fields can now be read only through pkg/exf
13      - removed some unused halos
14    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
15    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
16      or U/VICE from U/VWIND before computing U/VSTRESS
17    
18    checkpoint59k
19    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
20      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
21    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
22      all experiments pass when compile with un-initilised var. checking option.
23    o added pkg/salt_plume
24    o script to test restart (for now, in MITgcm_contrib/jmc_script)
25    o pkg/seaice: new read/write pickup version.
26      read meta file and write only fields which are needed to restart.
27      ( same logic as main pickup file ; also using pickupStrictlyMatch )
28    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
29    o lab_sea.hb87: modify the domain & update output.hb87.txt :
30      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
31      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
32      process. Fixed here by closing the domain at the Northern boundary.
33    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
34    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
35      a set of consecutive levels in/from a 3-D array.
36    o pkg/ptracers:
37      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
38      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
39    
40    checkpoint59j
41    o in pkgs: dic, obcs, offline, rbcs:
42      standard way to compute coeff. for time interpolation between 2 time reccords
43      which retains full precision (& make results less dependent on compiler).
44      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
45    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
46      packages instead of reading ice cover and wind speed separately
47    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
48     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
49      to allow to compile customized code before the update)
50    o cleaning-up:
51      - fix CPP instruction syntax in pkg/obcs
52      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
53        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
54      - fix some threads issue in IO parts.
55    o pkg/dic:
56      - add tons of "_d 0" (--> much better testreports !)
57       and then update outputs of tutorial_global_oce_biogeo
58    o pkg/mom_fluxform:
59      add a special version of momentum advection intended to conserve momentum
60      next to a bathymetry step or a coastline edge. (default = off = #undef)
61    o new read/write pickup version:
62      - for now, only implemented for main (mdsio) pickup file.
63      - write out only what is needed to restart; merge pickup_nh , pickup_ph
64        and main pickup together.
65      - read meta file; read only what is needed to restart; stop if a field
66        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
67        if it make sense (even if the restart is not perfect).
68      - if no meta file, assume that pickup to read corresponds exactly to
69        a pickup that would currently be written.
70      - read pickup written in the old format (until checkpoint59i) if it
71        recognizes an old meta file (no field-list).
72      - add a meta file in exp. which starts from a pickup: 2 cases:
73        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
74         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
75        b) a meta file describing the content of the associated pickup file
76         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
77    o pkg/mdsio & pkg/rw:
78      - new routine to read a meta file ; new set of routine to read
79        Multiple-fields file (with meta file).
80    o added open boundary conditions capability for seaice
81        HSNOW, HSALT, UICE, and VICE
82    
83    checkpoint59i
84    o adjoint:
85      * fix multiDimAdvection adjoint
86        (partial recomputation problem by TAF for fVerT(:,:,kDown)
87        and comlev1 size definition (maxpass vs. max. number of tracers)
88      * verification/global_ocean.90x45x15 adjoint now tests
89        NLFS and multiDimAdvection using DST3 (=30)
90      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
91    o pkg/kpp: add "_d 0" to real constant (if missing);
92      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
93      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
94    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
95      for internal parameters related to restart process (formerly from PARAMS.h)
96      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
97    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
98      as argument. (only atm2d & obcs write_pickup have not yet been updated)
99    o pkg/monitor:
100      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
101      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
102      - account for deep Atmosphere factor and density factor (anelastic)
103    o added open boundary conditions capability for seaice HEFF and AREA
104    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
105      thermodynamics
106      - requires a little reorganization, which affects the testreport results
107        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
108        so that now the conservative form is tested
109      - add a few comments
110    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
111    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
112    o add new diagnostics to seaice: advective, diffusive fluxes (only for
113      multidim-advection, for scheme 2 they are not filled) and transports,
114      thermodynamic growth rates
115    o change units of EmPmR (inside the code, + within coupling interface)
116      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
117      Affects results @ truncation level (cg2d match) and update output of
118       experiments: lab_sea(6), global_ocean.90x40x15(10),
119      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
120      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
121      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
122      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
123    
124    checkpoint59h
125    o pkg/exf:
126      - improve vectorization by moving if-statement out of loops in
127        exf_mapfields, exf_radiation
128      - exf_bulkformulae.F: introduce 2D fields and vectorize code
129    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
130    o testreport:
131      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
132        monitor & update offline_exf_seaice exp. output.
133      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
134    o pkg/seaice:
135      - bug fix in the evp solver: boundary conditions were affected be
136        masking of zMax/zMin (changes results)
137      - minor bug fix in boundary conditions in seaice_calc_strainrates
138        (changes results for no_slip)
139      - seaice_lsr.F: make interpolation of eta dependent on boundaries
140      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
141      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
142        stress formulation and no-slip boundary conditions
143    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
144      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
145    o pkg/seaice: a first HSALT time stepping equation has been checked in
146    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
147      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
148      without requiring DO-IF statements
149    o pkg/thsice:
150      use continuous power-law function for partition of energy between lateral
151      melting/freezing and thinning/thickening ; old code using step function
152      still available with #undef THSICE_FRACEN_POWERLAW
153      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
154    o testreport: change AD testing : check against results/output_adm.txt
155      using same scripts as for forward test.
156    
157    checkpoint59g
158    o adjoint testing: in preparation for changing testreport:
159      - output format: cost and grad written on separated lines
160      - ad output results in directory "results" (instead of "results_ad")
161    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
162    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
163    o pkg/ecco: allow user defined cost function contributions
164    o testreport:
165      Allow to choose (per experiment) the list of tested output variables
166       and the main variable (used to issue a pass/FAIL ) ;
167      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
168      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
169      Also modify printing of summary:
170       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
171       b) echo the list of tested variables in the individual summary.txt of
172          each experiment.
173    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
174      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
175      (but still depend on the tile decompostion of the domain).
176    o pkg/seaice: change a discretization detail to make the B-grid code
177      "more symmetric". This change is likely to remove all "ridges/leads" that
178      where quasi-aligned with the grid in B-grid solutions. It may also be
179      the solution to the stress coupling issues with the B-grid.
180    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
181      remove .cvsignore from input dir. (since testreport no longer run here).
182    o pkg/thsice:
183     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
184     - fix reshaping of sea-ice just after advection:
185       melt all the ice only if ice-volume is too small.
186     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
187       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
188     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
189    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
190      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
191    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
192      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
193      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
194      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
195      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
196      -> update output.txt
197    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
198     this affects truncation error: -> update output.txt of exp:
199      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
200      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
201    
202    checkpoint59f
203    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
204    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
205      a bounded range (in forward mode)
206    o pkg/ecco, ctrl, autodiff and mom_common:
207     internal parameter controls, completements of implementations
208    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
209    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
210      (not seem any difference in testing results).
211    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
212       at face corners.
213    o pkg/generic_advdiff:
214     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
215      loop range indices for computing vertical advection tendency
216      and do the calculation in the interior only (no overlap) ;
217      for now, only implemented for SOM advection (to save CPU time).
218     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
219    o exch2 adjoint
220      First set of changes:
221      - add exch2 hand-written adjoint templates
222      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
223        This will require cleanup in pkg/autodiff/*.F
224        (changed routines currently kept separate in verif. code/)
225      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
226        that used to hide exch2 or cubed-sphere specific code
227        (commented via 'cph-exch2')
228    o pkg/seaice
229      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
230    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
231       output of global_ocean.cs32x15.thsice .
232    
233    checkpoint59e
234    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
235      for B-grid vector (not yet tested) and C-grid vector (<- only used
236      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
237    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
238      (#ifdef ALLOW_SALT_PLUME)
239    o gather_2d/scatter_2d: removed halo regions
240    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
241      scheme and the corresponding test case (under front_relax dir). For now,
242      only available with Skew-flux form and not yet tested in realistic set-up.
243      adjoint: store directives updated, but gradient checks deteriorated,
244      so maybe GM/Redi adjoint is now broken.
245    o seaice adjoint
246      * add AREA, HEFF, HSNOW as control variable
247        (should not change lab_sea results)
248      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
249    o pkg/seaice:
250      * added computation of saltFlux in seaice_growth;
251        For time being, sea ice salinity is assumed constant
252        contribution of snow flooding to freshening of sea ice is neglected.
253        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
254        defaults to 0.0 in order to maintain backward compatibility.
255        Typical values for SEAICE_salinity are 4 to 10 g/kg.
256      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
257      * added SEAICE_availHeatFrac, which specifies fraction of surface level
258        heat content used to melt or grow ice
259      * commented out cap of HICE: it helps keep ice thinner
260      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
261      * applied OBCS T/S mask to HEFFM sea ice mask
262    
263    checkpoint59d
264    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
265     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
266     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
267    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
268     and change default value of parameter "GM_Small_Number";
269     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
270       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
271       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
272    o pkg/ecco: cost function when applying pkg/smooth to controls
273    o pkg/ctrl: add forcingPrecond run time parameter
274    o pkg/seaice:
275     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
276     - fix bug in metric terms of u-equation in LSR solver (implicit part),
277       changes verification/lab_sea
278     - rearrange implicit part of u-equation in LSR solver to make it easier to
279       read, understand, and debug. This causes changes at the truncation level.
280     - fix (serious) bug in the boundary conditions (sign error in the implicit
281       part) of the LSR solver. Changes all LSR results.
282     - fixed problem with HSNOW initialization to avoid thick snow when AREA
283       is initilized with small values - does not change lab_sea results.
284     - added HsnowFile initialization capability
285    o pkg/smooth: addition to model/src and pkg/ctrl so allow
286     initialization of pkg/smooth and application to control vector
287  o pkg/seaice: fix another bug in the LSR no-slip boundary conditons  o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
288  o dependencies: pkg/profiles requires pkg/cal  o dependencies: pkg/profiles requires pkg/cal
289  o pkg/profiles:  o pkg/profiles:
# Line 15  o pkg/profiles: Line 295  o pkg/profiles:
295       that allow you to prepare netcdf input files.       that allow you to prepare netcdf input files.
296   - also modified: cleaner include statements, cleaner error print statements,   - also modified: cleaner include statements, cleaner error print statements,
297     cleaner stops when error, and more tests of the netcdf input files consistency.     cleaner stops when error, and more tests of the netcdf input files consistency.
   
298  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
299  o pkg/seaice:  o pkg/seaice:
300   - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this   - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
# Line 149  o in FFIELDS.h: Line 428  o in FFIELDS.h:
428       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
429  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
430  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
431      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
432        are no longer updating the vertical diffusivity array
433        (passed as argument) but are (re-) setting those arrays.
434  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
435    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
436      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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