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revision 1.826 by mlosch, Fri Jun 1 12:57:48 2007 UTC revision 1.921 by dimitri, Wed Dec 5 16:56:14 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 CPP option EXF_SUBTRACT_UVVEL_FROM_UVWIND for subtracting
16      UVEL and VVEL from UWIND and VWIND prior to applying bulk formulae.
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
288    o dependencies: pkg/profiles requires pkg/cal
289    o pkg/profiles:
290     - added option ALLOW_PROFILES_GENERICGRID
291         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
292         that interpolation information (grid points and coefficients) is provided
293         within the netcdf input files.
294         -> sample matlab scripts can be found in MITgcm_contrib/gael
295         that allow you to prepare netcdf input files.
296     - also modified: cleaner include statements, cleaner error print statements,
297       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.
299    o pkg/seaice:
300     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
301       requires a new routine: seaice_diagnostics_fill.F
302     - make sure that seaice does not move if not forced (pressure replacement
303       method, Hibler and Ip, 1995), changes results
304     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
305     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
306       It is turned off by default (=-1.), because it changes the results.
307     - make it possible to read AREA from a file, too.
308    
309    checkpoint59c
310    o add S/R and diagnostics for oceanic mixed-layer depth
311    o move GMRedi call after all vertical mixing schemes (including KPP)
312    o pkg/thsice:
313     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
314      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
315  o pkg/obcs:  o pkg/obcs:
316   - bug fix for balance code   - bug fix for balance code
317  o pkg/seaice:  o pkg/seaice:
# Line 18  o change calculation of Visbeck K: Line 326  o change calculation of Visbeck K:
326    - no longer depend on tapering scheme; instead, compute slope (limited    - no longer depend on tapering scheme; instead, compute slope (limited
327      by GM_maxSlope). this is equivalent to what was comuted before with      by GM_maxSlope). this is equivalent to what was comuted before with
328      clipping or linear tappering.      clipping or linear tappering.
329    - fix vertical averaging (wrong by 1 level)    - fix vertical averaging (wrong by 1/2 level)
330    - leave the old version (but will not be maintained) within    - leave the old version (but will not be maintained) within
331      #ifdef OLD_VISBECK_CALC / #endif      #ifdef OLD_VISBECK_CALC / #endif
332      - update output of exp. ideal_2D_oce
333  o change error catch in calc_r_star to improve vectorization  o change error catch in calc_r_star to improve vectorization
334  o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and  o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
335    add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).    add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
336    o adjoint:
337      Re-organized adjoint checkpointing according to Matt Mazloff
338      (but with modifs/completions/cleanups)
339      Storing is now bundled into large arrays to optimized I/O
340      (and second step in cleanup of the_main_loop)
341    
342  checkpoint59b  checkpoint59b
343  o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):  o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
# Line 77  o pkg/exf: some cleaning-up: Line 391  o pkg/exf: some cleaning-up:
391  o pkg/thsice:  o pkg/thsice:
392   fix few little problems, in thsice_calc_thickn.F:   fix few little problems, in thsice_calc_thickn.F:
393    - growth vertically (and not laterally) if iceFrac == iceMaskMax    - growth vertically (and not laterally) if iceFrac == iceMaskMax
394    - melt laterally only if hIce < hThinIce (as the comments say)    - melt only laterally if hIce < hThinIce (as the comments say)
395    and in thsice_extend.F:    and in thsice_extend.F:
396    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
397    - start to form ice as soon as the minimum ice-volume is reachable.    - start to form ice as soon as the minimum ice-volume is reachable.
# Line 114  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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