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revision 1.855 by heimbach, Fri Jul 27 22:22:37 2007 UTC revision 1.952 by mlosch, Tue Feb 5 13:34:12 2008 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 parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
8      usingSphericalGrid, this allows to define the rotated grid coordinates
9      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
10      geographical coordinates according to the inverse of the rotation defined
11      by the Euler angles, so that Coriolis parameter and online-interpolation by
12      exf works with the geographical coordinates on XC/YC/XG/YG.
13      Naturally, this feature does not work with all packages, so some
14      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
15      profiles), because there the coordinates are assumed to be regular
16      spherical grid coordinates.
17    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
18      - introduce isopycnal diffusion coefficient control.
19    o tools/adjoint_options:
20      - additional control vector components.
21    o pkg/mnc: have mnc create marginally meaning full coordinate variables
22      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
23    o pkg/mypackage:
24      - add example of read/write pickup for state-var ;
25      - add entry points to the main code for state-vars diags & write-pickup.
26    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
27      transitions for useExfYearlyFields
28      - add new subroutine that determines the file to read from for
29        use*YearlyFields = .TRUE. and .FALSE.
30      - add a verification experiment to global_with_exf that tests
31        useExfYearlyFields with USE_EXF_INTERPOLATION defined
32    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
33      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
34      subroutines (which could be generated from a template, because they are
35      almost identical), for now they are included in obcs_prescribe_read.F for
36      simplicity
37    o pkg/exf:
38      - add a little more diagnostic to exf_interp_read (in analogy to
39        mds_read_field, can be turned off with debugLevel < debugLevA=1)
40      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
41        ugly but fast by unrolling short inner loops, inserting a unroll=8
42        directive in routine lagran, and splitting a loop and making do while the
43        outermost loop (the latter requires the intoduction of index arrays)
44    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
45    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
46      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
47    o verification/seaice_obcs: updated for restart test and latest options
48    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
49      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
50      for now this is only available for the C-grid code and also within
51      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
52    
53    checkpoint59m
54    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
55      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
56    o gad_som : fix flux output (& diagnostics) to have same units as other  
57      advection scheme fluxes (was previously multiplied by deltaT).  
58    o added verification/seaice_obcs both to test seaice open boundaries
59      and to provide an example matlab scrpt for generating them
60    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
61    o pkg/salt_plume: clean up salt_plume_frac.F to
62      remove redundancy in PlumeMethod 1 and 4
63    o pkg/kpp: added saltplume diagnostics
64    o pkg/obcs and pkg/seaice:
65      - do not set uice and vice to zero when OB*icefile are unspecified
66      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
67      - moved seaice tracer obcs after call to seaice_growth
68    o pkg/salt_plume: added various options for salt plume depth
69      criterion and for vertical distribution of the salt
70    
71    checkpoint59l
72    o pkg/ptracers: new version of ptracers pickup:
73      read meta file and write only fields which are needed to restart.
74      ( same logic as main pickup file ; also using pickupStrictlyMatch )
75    o pkg/seaice:
76      - add timescale for melting due to warm mixed layer as a means of
77        setting SEAICE_availHeatFrac more conveniently
78      - add a CPP-flag/runtime parameter check for flooding algorithm
79      - reformulated availHeat in seaice_growth.F to be independent of AREA
80    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
81      unit changes
82    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
83    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
84      SX vector computer.
85    o pkg/seaice:
86      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
87        seaice forcing fields can now be read only through pkg/exf
88      - removed some unused halos
89    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
90    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
91      or U/VICE from U/VWIND before computing U/VSTRESS
92    
93    checkpoint59k
94    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
95      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
96    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
97      all experiments pass when compile with un-initialised var. checking option.
98    o added pkg/salt_plume
99    o script to test restart (for now, in MITgcm_contrib/jmc_script)
100    o pkg/seaice: new read/write pickup version.
101      read meta file and write only fields which are needed to restart.
102      ( same logic as main pickup file ; also using pickupStrictlyMatch )
103    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
104    o lab_sea.hb87: modify the domain & update output.hb87.txt :
105      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
106      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
107      process. Fixed here by closing the domain at the Northern boundary.
108    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
109    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
110      a set of consecutive levels in/from a 3-D array.
111    o pkg/ptracers:
112      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
113      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
114    
115    checkpoint59j
116    o in pkgs: dic, obcs, offline, rbcs:
117      standard way to compute coeff. for time interpolation between 2 time reccords
118      which retains full precision (& make results less dependent on compiler).
119      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
120    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
121      packages instead of reading ice cover and wind speed separately
122    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
123     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
124      to allow to compile customized code before the update)
125    o cleaning-up:
126      - fix CPP instruction syntax in pkg/obcs
127      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
128        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
129      - fix some threads issue in IO parts.
130    o pkg/dic:
131      - add tons of "_d 0" (--> much better testreports !)
132       and then update outputs of tutorial_global_oce_biogeo
133    o pkg/mom_fluxform:
134      add a special version of momentum advection intended to conserve momentum
135      next to a bathymetry step or a coastline edge. (default = off = #undef)
136    o new read/write pickup version:
137      - for now, only implemented for main (mdsio) pickup file.
138      - write out only what is needed to restart; merge pickup_nh , pickup_ph
139        and main pickup together.
140      - read meta file; read only what is needed to restart; stop if a field
141        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
142        if it make sense (even if the restart is not perfect).
143      - if no meta file, assume that pickup to read corresponds exactly to
144        a pickup that would currently be written.
145      - read pickup written in the old format (until checkpoint59i) if it
146        recognizes an old meta file (no field-list).
147      - add a meta file in exp. which starts from a pickup: 2 cases:
148        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
149         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
150        b) a meta file describing the content of the associated pickup file
151         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
152    o pkg/mdsio & pkg/rw:
153      - new routine to read a meta file ; new set of routine to read
154        Multiple-fields file (with meta file).
155    o added open boundary conditions capability for seaice
156        HSNOW, HSALT, UICE, and VICE
157    
158    checkpoint59i
159    o adjoint:
160      * fix multiDimAdvection adjoint
161        (partial recomputation problem by TAF for fVerT(:,:,kDown)
162        and comlev1 size definition (maxpass vs. max. number of tracers)
163      * verification/global_ocean.90x45x15 adjoint now tests
164        NLFS and multiDimAdvection using DST3 (=30)
165      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
166    o pkg/kpp: add "_d 0" to real constant (if missing);
167      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
168      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
169    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
170      for internal parameters related to restart process (formerly from PARAMS.h)
171      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
172    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
173      as argument. (only atm2d & obcs write_pickup have not yet been updated)
174    o pkg/monitor:
175      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
176      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
177      - account for deep Atmosphere factor and density factor (anelastic)
178    o added open boundary conditions capability for seaice HEFF and AREA
179    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
180      thermodynamics
181      - requires a little reorganization, which affects the testreport results
182        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
183        so that now the conservative form is tested
184      - add a few comments
185    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
186    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
187    o add new diagnostics to seaice: advective, diffusive fluxes (only for
188      multidim-advection, for scheme 2 they are not filled) and transports,
189      thermodynamic growth rates
190    o change units of EmPmR (inside the code, + within coupling interface)
191      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
192      Affects results @ truncation level (cg2d match) and update output of
193       experiments: lab_sea(6), global_ocean.90x40x15(10),
194      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
195      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
196      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
197      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
198    
199    checkpoint59h
200    o pkg/exf:
201      - improve vectorization by moving if-statement out of loops in
202        exf_mapfields, exf_radiation
203      - exf_bulkformulae.F: introduce 2D fields and vectorize code
204    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
205    o testreport:
206      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
207        monitor & update offline_exf_seaice exp. output.
208      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
209    o pkg/seaice:
210      - bug fix in the evp solver: boundary conditions were affected be
211        masking of zMax/zMin (changes results)
212      - minor bug fix in boundary conditions in seaice_calc_strainrates
213        (changes results for no_slip)
214      - seaice_lsr.F: make interpolation of eta dependent on boundaries
215      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
216      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
217        stress formulation and no-slip boundary conditions
218    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
219      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
220    o pkg/seaice: a first HSALT time stepping equation has been checked in
221    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
222      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
223      without requiring DO-IF statements
224    o pkg/thsice:
225      use continuous power-law function for partition of energy between lateral
226      melting/freezing and thinning/thickening ; old code using step function
227      still available with #undef THSICE_FRACEN_POWERLAW
228      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
229    o testreport: change AD testing : check against results/output_adm.txt
230      using same scripts as for forward test.
231    
232    checkpoint59g
233    o adjoint testing: in preparation for changing testreport:
234      - output format: cost and grad written on separated lines
235      - ad output results in directory "results" (instead of "results_ad")
236    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
237    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
238    o pkg/ecco: allow user defined cost function contributions
239    o testreport:
240      Allow to choose (per experiment) the list of tested output variables
241       and the main variable (used to issue a pass/FAIL ) ;
242      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
243      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
244      Also modify printing of summary:
245       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
246       b) echo the list of tested variables in the individual summary.txt of
247          each experiment.
248    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
249      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
250      (but still depend on the tile decompostion of the domain).
251    o pkg/seaice: change a discretization detail to make the B-grid code
252      "more symmetric". This change is likely to remove all "ridges/leads" that
253      where quasi-aligned with the grid in B-grid solutions. It may also be
254      the solution to the stress coupling issues with the B-grid.
255    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
256      remove .cvsignore from input dir. (since testreport no longer run here).
257    o pkg/thsice:
258     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
259     - fix reshaping of sea-ice just after advection:
260       melt all the ice only if ice-volume is too small.
261     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
262       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
263     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
264    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
265      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
266    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
267      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
268      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
269      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
270      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
271      -> update output.txt
272    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
273     this affects truncation error: -> update output.txt of exp:
274      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
275      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
276    
277    checkpoint59f
278    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
279    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
280      a bounded range (in forward mode)
281    o pkg/ecco, ctrl, autodiff and mom_common:
282     internal parameter controls, completements of implementations
283    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
284    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
285      (not seem any difference in testing results).
286    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
287       at face corners.
288    o pkg/generic_advdiff:
289     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
290      loop range indices for computing vertical advection tendency
291      and do the calculation in the interior only (no overlap) ;
292      for now, only implemented for SOM advection (to save CPU time).
293     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
294  o exch2 adjoint  o exch2 adjoint
295    First set of changes:    First set of changes:
296    - add exch2 hand-written adjoint templates    - add exch2 hand-written adjoint templates
# Line 13  o exch2 adjoint Line 300  o exch2 adjoint
300    - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC    - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
301      that used to hide exch2 or cubed-sphere specific code      that used to hide exch2 or cubed-sphere specific code
302      (commented via 'cph-exch2')      (commented via 'cph-exch2')
303    o pkg/seaice
304      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
305    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
306       output of global_ocean.cs32x15.thsice .
307    
308  checkpoint59e  checkpoint59e
309  o exch2: new S/R that only use the cube-tracer (center-position) exchange:  o exch2: new S/R that only use the cube-tracer (center-position) exchange:
# Line 212  o in FFIELDS.h: Line 503  o in FFIELDS.h:
503       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
504  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
505  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
506      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
507        are no longer updating the vertical diffusivity array
508        (passed as argument) but are (re-) setting those arrays.
509  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
510    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
511      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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