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revision 1.696 by heimbach, Sat Jul 8 00:29:20 2006 UTC revision 1.942 by dimitri, Fri Jan 18 01:38:33 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 take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V  o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
8    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
9      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
10    o verification/seaice_obcs: updated for restart test and latest options
11    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
12      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
13      for now this is only available for the C-grid code and also within
14      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
15    
16    checkpoint59m
17    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
18      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
19    o gad_som : fix flux output (& diagnostics) to have same units as other  
20      advection scheme fluxes (was previously multiplied by deltaT).  
21    o added verification/seaice_obcs both to test seaice open boundaries
22      and to provide an example matlab scrpt for generating them
23    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
24    o pkg/salt_plume: clean up salt_plume_frac.F to
25      remove redundancy in PlumeMethod 1 and 4
26    o pkg/kpp: added saltplume diagnostics
27    o pkg/obcs and pkg/seaice:
28      - do not set uice and vice to zero when OB*icefile are unspecified
29      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
30      - moved seaice tracer obcs after call to seaice_growth
31    o pkg/salt_plume: added various options for salt plume depth
32      criterion and for vertical distribution of the salt
33    
34    checkpoint59l
35    o pkg/ptracers: new version of ptracers pickup:
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:
39      - add timescale for melting due to warm mixed layer as a means of
40        setting SEAICE_availHeatFrac more conveniently
41      - add a CPP-flag/runtime parameter check for flooding algorithm
42      - reformulated availHeat in seaice_growth.F to be independent of AREA
43    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
44      unit changes
45    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
46    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
47      SX vector computer.
48    o pkg/seaice:
49      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
50        seaice forcing fields can now be read only through pkg/exf
51      - removed some unused halos
52    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
53    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
54      or U/VICE from U/VWIND before computing U/VSTRESS
55    
56    checkpoint59k
57    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
58      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
59    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
60      all experiments pass when compile with un-initialised var. checking option.
61    o added pkg/salt_plume
62    o script to test restart (for now, in MITgcm_contrib/jmc_script)
63    o pkg/seaice: new read/write pickup version.
64      read meta file and write only fields which are needed to restart.
65      ( same logic as main pickup file ; also using pickupStrictlyMatch )
66    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
67    o lab_sea.hb87: modify the domain & update output.hb87.txt :
68      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
69      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
70      process. Fixed here by closing the domain at the Northern boundary.
71    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
72    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
73      a set of consecutive levels in/from a 3-D array.
74    o pkg/ptracers:
75      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
76      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
77    
78    checkpoint59j
79    o in pkgs: dic, obcs, offline, rbcs:
80      standard way to compute coeff. for time interpolation between 2 time reccords
81      which retains full precision (& make results less dependent on compiler).
82      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
83    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
84      packages instead of reading ice cover and wind speed separately
85    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
86     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
87      to allow to compile customized code before the update)
88    o cleaning-up:
89      - fix CPP instruction syntax in pkg/obcs
90      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
91        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
92      - fix some threads issue in IO parts.
93    o pkg/dic:
94      - add tons of "_d 0" (--> much better testreports !)
95       and then update outputs of tutorial_global_oce_biogeo
96    o pkg/mom_fluxform:
97      add a special version of momentum advection intended to conserve momentum
98      next to a bathymetry step or a coastline edge. (default = off = #undef)
99    o new read/write pickup version:
100      - for now, only implemented for main (mdsio) pickup file.
101      - write out only what is needed to restart; merge pickup_nh , pickup_ph
102        and main pickup together.
103      - read meta file; read only what is needed to restart; stop if a field
104        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
105        if it make sense (even if the restart is not perfect).
106      - if no meta file, assume that pickup to read corresponds exactly to
107        a pickup that would currently be written.
108      - read pickup written in the old format (until checkpoint59i) if it
109        recognizes an old meta file (no field-list).
110      - add a meta file in exp. which starts from a pickup: 2 cases:
111        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
112         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
113        b) a meta file describing the content of the associated pickup file
114         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
115    o pkg/mdsio & pkg/rw:
116      - new routine to read a meta file ; new set of routine to read
117        Multiple-fields file (with meta file).
118    o added open boundary conditions capability for seaice
119        HSNOW, HSALT, UICE, and VICE
120    
121    checkpoint59i
122    o adjoint:
123      * fix multiDimAdvection adjoint
124        (partial recomputation problem by TAF for fVerT(:,:,kDown)
125        and comlev1 size definition (maxpass vs. max. number of tracers)
126      * verification/global_ocean.90x45x15 adjoint now tests
127        NLFS and multiDimAdvection using DST3 (=30)
128      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
129    o pkg/kpp: add "_d 0" to real constant (if missing);
130      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
131      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
132    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
133      for internal parameters related to restart process (formerly from PARAMS.h)
134      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
135    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
136      as argument. (only atm2d & obcs write_pickup have not yet been updated)
137    o pkg/monitor:
138      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
139      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
140      - account for deep Atmosphere factor and density factor (anelastic)
141    o added open boundary conditions capability for seaice HEFF and AREA
142    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
143      thermodynamics
144      - requires a little reorganization, which affects the testreport results
145        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
146        so that now the conservative form is tested
147      - add a few comments
148    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
149    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
150    o add new diagnostics to seaice: advective, diffusive fluxes (only for
151      multidim-advection, for scheme 2 they are not filled) and transports,
152      thermodynamic growth rates
153    o change units of EmPmR (inside the code, + within coupling interface)
154      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
155      Affects results @ truncation level (cg2d match) and update output of
156       experiments: lab_sea(6), global_ocean.90x40x15(10),
157      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
158      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
159      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
160      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
161    
162    checkpoint59h
163    o pkg/exf:
164      - improve vectorization by moving if-statement out of loops in
165        exf_mapfields, exf_radiation
166      - exf_bulkformulae.F: introduce 2D fields and vectorize code
167    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
168    o testreport:
169      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
170        monitor & update offline_exf_seaice exp. output.
171      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
172    o pkg/seaice:
173      - bug fix in the evp solver: boundary conditions were affected be
174        masking of zMax/zMin (changes results)
175      - minor bug fix in boundary conditions in seaice_calc_strainrates
176        (changes results for no_slip)
177      - seaice_lsr.F: make interpolation of eta dependent on boundaries
178      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
179      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
180        stress formulation and no-slip boundary conditions
181    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
182      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
183    o pkg/seaice: a first HSALT time stepping equation has been checked in
184    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
185      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
186      without requiring DO-IF statements
187    o pkg/thsice:
188      use continuous power-law function for partition of energy between lateral
189      melting/freezing and thinning/thickening ; old code using step function
190      still available with #undef THSICE_FRACEN_POWERLAW
191      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
192    o testreport: change AD testing : check against results/output_adm.txt
193      using same scripts as for forward test.
194    
195    checkpoint59g
196    o adjoint testing: in preparation for changing testreport:
197      - output format: cost and grad written on separated lines
198      - ad output results in directory "results" (instead of "results_ad")
199    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
200    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
201    o pkg/ecco: allow user defined cost function contributions
202    o testreport:
203      Allow to choose (per experiment) the list of tested output variables
204       and the main variable (used to issue a pass/FAIL ) ;
205      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
206      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
207      Also modify printing of summary:
208       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
209       b) echo the list of tested variables in the individual summary.txt of
210          each experiment.
211    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
212      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
213      (but still depend on the tile decompostion of the domain).
214    o pkg/seaice: change a discretization detail to make the B-grid code
215      "more symmetric". This change is likely to remove all "ridges/leads" that
216      where quasi-aligned with the grid in B-grid solutions. It may also be
217      the solution to the stress coupling issues with the B-grid.
218    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
219      remove .cvsignore from input dir. (since testreport no longer run here).
220    o pkg/thsice:
221     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
222     - fix reshaping of sea-ice just after advection:
223       melt all the ice only if ice-volume is too small.
224     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
225       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
226     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
227    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
228      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
229    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
230      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
231      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
232      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
233      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
234      -> update output.txt
235    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
236     this affects truncation error: -> update output.txt of exp:
237      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
238      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
239    
240    checkpoint59f
241    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
242    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
243      a bounded range (in forward mode)
244    o pkg/ecco, ctrl, autodiff and mom_common:
245     internal parameter controls, completements of implementations
246    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
247    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
248      (not seem any difference in testing results).
249    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
250       at face corners.
251    o pkg/generic_advdiff:
252     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
253      loop range indices for computing vertical advection tendency
254      and do the calculation in the interior only (no overlap) ;
255      for now, only implemented for SOM advection (to save CPU time).
256     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
257    o exch2 adjoint
258      First set of changes:
259      - add exch2 hand-written adjoint templates
260      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
261        This will require cleanup in pkg/autodiff/*.F
262        (changed routines currently kept separate in verif. code/)
263      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
264        that used to hide exch2 or cubed-sphere specific code
265        (commented via 'cph-exch2')
266    o pkg/seaice
267      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
268    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
269       output of global_ocean.cs32x15.thsice .
270    
271    checkpoint59e
272    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
273      for B-grid vector (not yet tested) and C-grid vector (<- only used
274      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
275    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
276      (#ifdef ALLOW_SALT_PLUME)
277    o gather_2d/scatter_2d: removed halo regions
278    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
279      scheme and the corresponding test case (under front_relax dir). For now,
280      only available with Skew-flux form and not yet tested in realistic set-up.
281      adjoint: store directives updated, but gradient checks deteriorated,
282      so maybe GM/Redi adjoint is now broken.
283    o seaice adjoint
284      * add AREA, HEFF, HSNOW as control variable
285        (should not change lab_sea results)
286      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
287    o pkg/seaice:
288      * added computation of saltFlux in seaice_growth;
289        For time being, sea ice salinity is assumed constant
290        contribution of snow flooding to freshening of sea ice is neglected.
291        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
292        defaults to 0.0 in order to maintain backward compatibility.
293        Typical values for SEAICE_salinity are 4 to 10 g/kg.
294      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
295      * added SEAICE_availHeatFrac, which specifies fraction of surface level
296        heat content used to melt or grow ice
297      * commented out cap of HICE: it helps keep ice thinner
298      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
299      * applied OBCS T/S mask to HEFFM sea ice mask
300    
301    checkpoint59d
302    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
303     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
304     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
305    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
306     and change default value of parameter "GM_Small_Number";
307     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
308       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
309       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
310    o pkg/ecco: cost function when applying pkg/smooth to controls
311    o pkg/ctrl: add forcingPrecond run time parameter
312    o pkg/seaice:
313     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
314     - fix bug in metric terms of u-equation in LSR solver (implicit part),
315       changes verification/lab_sea
316     - rearrange implicit part of u-equation in LSR solver to make it easier to
317       read, understand, and debug. This causes changes at the truncation level.
318     - fix (serious) bug in the boundary conditions (sign error in the implicit
319       part) of the LSR solver. Changes all LSR results.
320     - fixed problem with HSNOW initialization to avoid thick snow when AREA
321       is initilized with small values - does not change lab_sea results.
322     - added HsnowFile initialization capability
323    o pkg/smooth: addition to model/src and pkg/ctrl so allow
324     initialization of pkg/smooth and application to control vector
325    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
326    o dependencies: pkg/profiles requires pkg/cal
327    o pkg/profiles:
328     - added option ALLOW_PROFILES_GENERICGRID
329         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
330         that interpolation information (grid points and coefficients) is provided
331         within the netcdf input files.
332         -> sample matlab scripts can be found in MITgcm_contrib/gael
333         that allow you to prepare netcdf input files.
334     - also modified: cleaner include statements, cleaner error print statements,
335       cleaner stops when error, and more tests of the netcdf input files consistency.
336    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
337    o pkg/seaice:
338     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
339       requires a new routine: seaice_diagnostics_fill.F
340     - make sure that seaice does not move if not forced (pressure replacement
341       method, Hibler and Ip, 1995), changes results
342     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
343     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
344       It is turned off by default (=-1.), because it changes the results.
345     - make it possible to read AREA from a file, too.
346    
347    checkpoint59c
348    o add S/R and diagnostics for oceanic mixed-layer depth
349    o move GMRedi call after all vertical mixing schemes (including KPP)
350    o pkg/thsice:
351     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
352      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
353    o pkg/obcs:
354     - bug fix for balance code
355    o pkg/seaice:
356      - allow values of SEAICE_elasticParm > 1
357      - add new parameter SEAICE_evpTauRelax as an alternative
358        to SEAICE_elasticParm
359      - make lsr boundary conditions free slip (by default), changes result
360      - add code for no slip boundary conditions for lsr
361      - set minimum of zeta to zero (and not 4e8) (changes results)
362      - add a cap on AREA after advecting AREA if seaice_growth is not called
363    o change calculation of Visbeck K:
364      - no longer depend on tapering scheme; instead, compute slope (limited
365        by GM_maxSlope). this is equivalent to what was comuted before with
366        clipping or linear tappering.
367      - fix vertical averaging (wrong by 1/2 level)
368      - leave the old version (but will not be maintained) within
369        #ifdef OLD_VISBECK_CALC / #endif
370      - update output of exp. ideal_2D_oce
371    o change error catch in calc_r_star to improve vectorization
372    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
373      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
374    o adjoint:
375      Re-organized adjoint checkpointing according to Matt Mazloff
376      (but with modifs/completions/cleanups)
377      Storing is now bundled into large arrays to optimized I/O
378      (and second step in cleanup of the_main_loop)
379    
380    checkpoint59b
381    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
382      - export/import (between ocean & coupler) fields needed for ocean DIC.
383    o pkg/seaice:
384      - get rid of three more exchanges seaice_calc_viscosities (required
385        different loop boundaries in seaice_lsr and seaice_ocean_stress)
386      - bug fix in seaice_ocean_stress (update of lab_sea required)
387      - reduce loop boundaries to necessary minimum also in seaice_evp
388      - go back to the old way of computing deltaC/Z as the adjoint likes that
389        better
390    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
391      passive tracer to an Age Tracer) + update output.txt
392    o pkg/exf:
393      - implement A-grid / C-grid selection for wind-stress input files.
394      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
395      for now, in exf_bulk_largeyeager04.F only :
396      - change implementation for case where windspeed + 2. components wind-stress
397        are read-in. AND use rhoConstFresh to convert evap.
398    o pkg/seaice:
399      - use correct EXCH_UV for wind-forcing (on A-grid).
400      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
401        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
402    o pkg/exf:
403      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
404      EXF_INTERPOLATION:
405      - merge global_with_exf/code version of exf_interp_read.F
406        to the main code ;
407      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
408        reading the file ; Important: This options needs to be defined to recover
409        previous code.
410        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
411      - no longer loose real*8 precision along the way when using exf_iprec=64.
412    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
413      - change discretisation of evp-solver in order to avoid another exchange
414        (changes lab_sea) and clean up a little
415      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
416        help the adjoint (this also changes the results slightly)
417      - add a few "_d 0" where they had been missing in seaice_evp.F
418      - cleaning up: remove unused seaice_calc_rhs.F
419    o pkg/exf: some cleaning-up:
420      - change various "constants" into runtime parameters
421      - cleaned-up Large&Yeager04 routine which should eventually
422        replace exf_bulkformulae.F (changed names of S/R and CPP)
423        and merged various ALLOW_ATM_WIND options
424     only used with thsice pkg (in thsice_get_exf.F):
425      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
426        which are used when useStabilityFct_overIce=TRUE (= the default)
427      - change default values of ice & snow emissivity and scale downward LW
428        by ice & snow emissivity.
429    o pkg/thsice:
430     fix few little problems, in thsice_calc_thickn.F:
431      - growth vertically (and not laterally) if iceFrac == iceMaskMax
432      - melt only laterally if hIce < hThinIce (as the comments say)
433      and in thsice_extend.F:
434      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
435      - start to form ice as soon as the minimum ice-volume is reachable.
436     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
437      and cpl_aim+ocn
438    o pkg/kpp
439     - move computation of surface related input fields to KPP into a new
440       subroutine kpp_forcing_surf.F
441     - remove wrong (within bi,bj loops) EXCH calls.
442     - little cleaning (add argument myThid in last position, cvs header ...)
443     - for now, fix conservation problem by exchanging KPPviscAz (may not
444       be the best fix)
445    o pkg/seaice
446     - check for inconsistent evp parameter/cpp-flag combination
447     - remove leftover errIO flat for obsolete name list error handling
448    o OpenAD
449     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
450    
451    checkpoint59a
452    o pkg/seaice: some parameter clarifications and a little bit of clean up
453    o pkg/thsice: rename run-time parameters:
454       himin       -> hIceMin
455       himin0      -> hThinIce
456       hihig       -> hThickIce
457       i0          -> i0swFrac
458       transCoef   -> bMeltCoef
459       frac_energy -> fracMelting
460      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
461       with default values (for now) that do not change the results.
462      remove old version of thsice vars advection in pkg/seaice.
463    o in FFIELDS.h:
464      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
465      - make pLoad & sIceLoad always available (but still only used if
466         ATMOSPHERIC_LOADING is #define).
467    o pkg/kpp: replaced _KPP_RL with _RL
468    o bug fixes for vertical diffusivity computations when both KPP and
469        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
470        are no longer updating the vertical diffusivity array
471        (passed as argument) but are (re-) setting those arrays.
472    o pkg/seaice: fix bug in evp solver, while doing that
473      - change (improve?) discretization of stress computations for both
474        cgrid-lsr and evp solver
475      - add a new routine to compute strain rates
476      - the above changes lab_sea results
477      - add no slip conditions for evp solver (off by default), lsr-version
478        may follow
479      - fix exchange for shear at Z-points (does not change lab_sea)
480      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
481        (to force the user to pick a time step since there is not "safe" way
482        of choosing it)
483      - add principal stress diagnostics
484      - rearrange fields for evp a little to avoid having to call a: too many
485        exchanges and b: exchanges for stress trensor components which we do
486        not have.
487      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
488        of evp, complete rewrite for lsr case (latter is does not yet work
489        in all cases)
490    o pkg/kpp: add code to have mixing in shelf ice caverns
491      - add myThid to all kpp routines (long overdue)
492    
493    checkpoint59
494    o pkg/exf:
495      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
496        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
497      - move exf header files from lower_case.h to UPPER_CASE.h ;
498        add missing cvs Header & Name
499      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
500      - add namelist param. selectStressGridPosition, exf_monFreq
501      - retire many _CLIM routines, and remove data.exf_clim
502        + params moved to data.exf
503        + climsst, climsss now handled by exf_set_gen, i.e.
504          climss?period=0 refers to constant field,
505          climss?period=-12 to monthly forcing
506      - split up namelists in data.exf
507    o pkg/seaice:
508      - remove seaice_exch and seaice_exch_uv
509      - remove superfluous exchange of theta
510      - add myThid to seaice_budget_ocean/ice
511      - add new interface for atmospheric wind forcing (C-grid only)
512        + new routine
513        + two new field (taux, tauy for stress over ice)
514        + removed one global field (DAIRN) for C-grid case only
515    o pkg/thsise
516      - 2nd set of modifs for thsice adjoint in conjunction with exf
517    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
518    
519    checkpoint58y_post
520    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
521      vertical diffusivity, similar to that in MOM4; turned on using
522      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
523      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
524    o Added capability for 3D specification of background vertical diffusion
525      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
526      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
527      "data" file that contains the 3D vertical diffusivity coefficients.
528    o ice dynamics (pkg/seaice) with thsice thermodynamics:
529      - add code within pkg thsice to advect & diffuse sea-ice fields
530      similar to (and will replace) what has been added in  seaice_advdiff.F,
531      but: - conserving Mass, Heat & Salt.
532           - better when using non-linear advection scheme (not yet fully tested)
533           - can also be used in atmospheric set-up (for now, only the diffusion).
534    
535    checkpoint58x_post
536    o IO option for global-file compact format:
537      - add options when generating topology (utils/exch2/matlab-topology-generator)
538      - add I/O capability (pkg/mdsio).
539      - adapt utils/matlab/rdmds.m to read this format.
540      for now long-line format not yet supported by pkg/mdsio (& exch2).
541    o shelfice: add a few diagnostics
542    
543    checkpoint58w_post
544    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
545      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
546      (and replace horiVertRatio in NH code).
547      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
548                         and tutorial_plume_on_slope (sensitive to truncation)
549    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
550      directly to drive seaice model (C-grid only)
551    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
552     - reintroduce computation of wind from stress,
553     - compute tau (in exf_bulkformulae.F) from windstress averaged to
554       mass points to avoid tau = 0
555     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
556    o rdmnc.m: make it work with "global" files created with gluemnc
557    o rdmnc.m : some improvements in dealing with singleton dimension
558      (tested on all testreport mnc output files).
559    o genmake2: disable pkg/profiles if netcdf test fails.
560    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
561    o move call to cal_readparms up to make calendar parameters/variable available
562      to all packages
563    
564    checkpoint58v_post
565    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
566      useDynP_inEos_Zc tested.
567    o pkg/exf: changes to properly interpolate/mask/scale initial fields
568    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
569      and portions thereof.  See read_cs.txt for description and examples.
570    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
571      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
572      following the great-circle arc between those 2 points.
573    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
574      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
575    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
576     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
577     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
578     - still needs work (not working with some options ; efficiency to improve)
579       and serious testing.
580     - use this scheme for temperature & salinity in 2 advection test exp.:
581       advect_xy & advect_xz, respectively.
582    
583    checkpoint58u_post
584    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
585    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
586    o testreport: add option "-skipdir" to skip some test.
587    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
588      momentum calculation.
589    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
590    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
591      remove checkpoint.F and the_correction_step.F (no longer used);
592      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
593    o add option (linFSConserveTr) to correct for tracer source/sink due to
594      Linear Free surface
595    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
596    o pkg/thsice: fix reading mnc-pickups
597    
598    checkpoint58t_post
599    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
600    o pkg/mdsio:
601     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
602       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
603       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
604     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
605     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
606       either MDS_READ_FIELD or MDS_WRITE_FIELD )
607     - new S/R (to replace MDSWRITEMETA), which allows to write more
608       informations (variable names, time ...) to meta files.
609     - modify rdmds.m to give back the meta file content.
610    o pkg/diagnostics: change vertical interpolation to be safer, and more
611       flexible (define p-levels to interpolate to in data.diagnostics);
612      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
613       diagnostic pointer.
614    o pkg/seaice: more cleaning up of seaice_growth, added many comments
615    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
616    o fix multi-category seaice:
617     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
618       SEAICE_MULTICATEGORY
619     - fix short wave heat flux
620    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
621       and allow to use EVP solver. Change forward lab_sea: test both EVP
622       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
623    o Initial check-in of lab_sea adjoint
624      (very similar to natl_box_adjoint/code_seaice)
625      * used C-grid and EVP solver
626      * used KPP, GM/Redi
627      * uses inAdExact=.TRUE.
628      * gradient checks fail for both ADM and TLM
629        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
630        f.d. gradients actually seem more problematic than ADM, TLM gradients;
631        issue is related to forward mismatch between g77 an ifort
632    o pkg/seaice: overhaul of thermodynamics
633     - growth.F and groatb.F are replaced by new routine seaice_growth.F
634     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
635     - move a few global fields out of SEAICE.h into seaice_growth.F and
636       make them 2D (FICE/QNETO/ ...)
637     - remove FO (it is the same as QNETO)
638     - introduce a few local fields to avoid modifying external fields such
639       as atemp, etc.
640    
641    checkpoint58s_post
642    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
643      changed exf_set_gen.F so that
644        genperiod=0 means input file is one time-constant field and
645        genperiod=-12 means input file contains 12 monthly means
646    o CG2D: use pre-computed solver main-diagonal (stored in common block);
647      this affects truncation error ; generate new output file for exp. which
648      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
649        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
650        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
651        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
652        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
653        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
654    o start implementation of deep-atmosphere and anelastic formulation
655    o verification: remove 2nd copy of input files and use script "prepare_run"
656      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
657    o mom_common/vecinv/fluxform: fix a few initialisation isssues
658    o profiles: fix for multithreaded case
659    
660    o diagnostics: rename few diags:
661      s/'PRESSURE'/'RCENTER '/g
662      s/'TICE    '/'oceFreez'/g
663      s/'TAUX    '/'oceTAUX '/g
664      s/'TAUY    '/'oceTAUY '/g
665      s/'SWFLUX  '/'oceQsw  '/g
666      s/DIFx/DFxE/g
667      s/DIFy/DFyE/g
668      and add few ocean-forcing diagnostics:
669      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
670    o modifications to pkg/seaice/growth.F and budget.F, which change results of
671      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
672      as actual snow thickness.  It now refers everywhere to effective snow
673      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
674    
675    checkpoint58r_post
676    o modifications to pkg/seaice/growth.F, which change results of
677      lab_sea experiment: fixes pertain to melting snow over open water, to
678      masking EVAP under sea ice, and to using the correct AREA variable for
679      computations of EVAP, PRECIP, HSNOW, and GHEFF
680    o add ability to read bathy, salt, and theta using MNC (off by def)
681    o add flooding algorithm and advection of HSNOW for pkg/seaice;
682      both are turned off by default and do no change any results
683    o seaice advection with pkg/thsice: a step toward the use of non-linear
684      advection scheme, but #ifdef or commented out for now (requires more EXCH).
685    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
686      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
687      in natl_box (affects results @ truncation level: update output.txt)
688    o multi-threading and IO:
689      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
690      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
691        (needed to work with SingleCpuIO): tested in all verif. exp.
692    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
693      affects the results (but none of the verification test uses this scheme).
694    o Adding some pkg/diagnostics capability to pkg/seaice
695      (will certainly be subject to changes)
696    o ctrl: adding new control variables:
697      lwflux, lwdown, evap, snowprecip, apressure, runoff
698    
699    checkpoint58q_post
700    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
701      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
702      high_res_cube configuration by 4% on Columbia.
703    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
704      add (in global_with_exf/code) a version of EXF_INTERP_READ without
705      dynamical allocation (seems to work in multi-threaded).
706    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
707      single CPU io) so that TAF does not have to see EESUPPORT.h
708    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
709    
710    checkpoint58p_post
711    o obcs: stop if obcs is used with useCDscheme = .true.
712    o shelfice:
713     - fix a sign error so that no slip at shelfice interface works
714     - remove stop for combination non-hydrostatic code and shelfice. That does
715       not mean, that the results are correct, but at least they are numerically
716       stable
717    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
718    o added adjoint exch routined for all exch*3d* routines
719      and updated flow directives
720    
721    checkpoint58o_post
722    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
723      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
724    o change controling S/R for writing pickup file (new S/R do_write_pickup)
725      and clean-up reading/writing of pickup files.
726    o fix local version of read/write pickup (NH part) in rotating_tank/code
727    o simplify EXCH interface:
728     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
729     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
730    o added the regrid package
731    o shelfice:
732     - add a simple boundary layer scheme to reduce noise
733     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
734    
735    checkpoint58n_post
736    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
737       local variable (not in common block).
738    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
739      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
740      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
741        to work with SingleCpuIO.
742    o add "_d 0" to real constant of pkg/cfc subroutines ;
743       update exp. cfc_exemple & tutorial_cfc_offline output files.
744    o multi-threading and IO:
745      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
746        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
747      - barrier before and after reading.
748      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
749      - avoid using MDS_WRITELOCAL for LAND pkg output.
750      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
751        common-block variables ; Allows multi-threading with master-thread IO.
752    o change default MAX_NO_THREADS from 32 to 4 ;
753      and stop cleanly when MAX_NO_THREADS is too small.
754    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
755    
756    checkpoint58m_post
757    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
758       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
759    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
760       keep global_ocean.90x40x15 (for AD testing) with former secondary test
761       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
762    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
763        add MITgcm_tutorials (= code + all the tutorials)
764    o ecco, option to compute cost for total ssh (mean+anom)
765    o consistent with addition of ptracer and ssh in pkg/profiles
766    o profiles: adding ptracer and ssh
767    o testreport: change multi-test output-file name
768      (from output.txt.{name} to output.{name}.txt)
769    o profiles: now ok for mutli-tiles case
770    o seaice: add 4 parameters for different advection schemes for area,
771      (effective) seaice thickness, enthalphy, and snow height. Their default
772      is the standard parameter SEAICEadvScheme
773    o calc_gw:
774     - add cosFacU in zonal viscous flux (harmonic.visc.).
775     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
776       of tutorial_plume_on_slope.
777    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
778    o calc_gw: true flux-form, account for horizontal grid spacing.
779      update rotating_tank results, but not plume_on_slope (affected at
780      truncation level, 11 digits).
781    
782    checkpoint58l_post
783    o calc_gw:
784     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
785     - remove side-drag for now (need to fix it); update plume_on_slope results.
786     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
787  o commit code to make SST/SSS weights spatially variable  o commit code to make SST/SSS weights spatially variable
788    (based on either variable in-situ or variable initial T/S weights)    (based on either variable in-situ or variable initial T/S weights)
789  o pkg/ecco:  o pkg/ecco:
# Line 15  o pkg/ecco: Line 794  o pkg/ecco:
794      (sflxumm, sfluxmm2, bal_sfluxmm)      (sflxumm, sfluxmm2, bal_sfluxmm)
795    * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,    * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
796      including separate counting and multipliers      including separate counting and multipliers
797    o pkg/rbcs
798      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
799    
800  checkpoint58k_post  checkpoint58k_post
801  o testreport:  o testreport:

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