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revision 1.713 by jmc, Mon Aug 14 00:43:23 2006 UTC revision 1.911 by jmc, Sun Nov 25 22:28:30 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 script to test restart (for now, in MITgcm_contrib/jmc_script)
8    o pkg/seaice: new read/write pickup version.
9      read meta file and write only fields which are needed to restart.
10      ( same logic as main pickup file ; also using pickupStrictlyMatch )
11    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
12    o lab_sea.hb87: modify the domain & update output.hb87.txt :
13      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
14      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
15      process. Fixed here by closing the domain at the Northern boundary.
16    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
17    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
18      a set of consecutive levels in/from a 3-D array.
19    o pkg/ptracers:
20      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
21      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
22    
23    checkpoint59j
24    o in pkgs: dic, obcs, offline, rbcs:
25      standard way to compute coeff. for time interpolation between 2 time reccords
26      which retains full precision (& make results less dependent on compiler).
27      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
28    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
29      packages instead of reading ice cover and wind speed separately
30    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
31     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
32      to allow to compile customized code before the update)
33    o cleaning-up:
34      - fix CPP instruction syntax in pkg/obcs
35      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
36        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
37      - fix some threads issue in IO parts.
38    o pkg/dic:
39      - add tons of "_d 0" (--> much better testreports !)
40       and then update outputs of tutorial_global_oce_biogeo
41    o pkg/mom_fluxform:
42      add a special version of momentum advection intended to conserve momentum
43      next to a bathymetry step or a coastline edge. (default = off = #undef)
44    o new read/write pickup version:
45      - for now, only implemented for main (mdsio) pickup file.
46      - write out only what is needed to restart; merge pickup_nh , pickup_ph
47        and main pickup together.
48      - read meta file; read only what is needed to restart; stop if a field
49        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
50        if it make sense (even if the restart is not perfect).
51      - if no meta file, assume that pickup to read corresponds exactly to
52        a pickup that would currently be written.
53      - read pickup written in the old format (until checkpoint59i) if it
54        recognizes an old meta file (no field-list).
55      - add a meta file in exp. which starts from a pickup: 2 cases:
56        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
57         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
58        b) a meta file describing the content of the associated pickup file
59         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
60    o pkg/mdsio & pkg/rw:
61      - new routine to read a meta file ; new set of routine to read
62        Multiple-fields file (with meta file).
63    o added open boundary conditions capability for seaice
64        HSNOW, HSALT, UICE, and VICE
65    
66    checkpoint59i
67    o adjoint:
68      * fix multiDimAdvection adjoint
69        (partial recomputation problem by TAF for fVerT(:,:,kDown)
70        and comlev1 size definition (maxpass vs. max. number of tracers)
71      * verification/global_ocean.90x45x15 adjoint now tests
72        NLFS and multiDimAdvection using DST3 (=30)
73      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
74    o pkg/kpp: add "_d 0" to real constant (if missing);
75      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
76      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
77    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
78      for internal parameters related to restart process (formerly from PARAMS.h)
79      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
80    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
81      as argument. (only atm2d & obcs write_pickup have not yet been updated)
82    o pkg/monitor:
83      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
84      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
85      - account for deep Atmosphere factor and density factor (anelastic)
86    o added open boundary conditions capability for seaice HEFF and AREA
87    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
88      thermodynamics
89      - requires a little reorganization, which affects the testreport results
90        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
91        so that now the conservative form is tested
92      - add a few comments
93    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
94    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
95    o add new diagnostics to seaice: advective, diffusive fluxes (only for
96      multidim-advection, for scheme 2 they are not filled) and transports,
97      thermodynamic growth rates
98    o change units of EmPmR (inside the code, + within coupling interface)
99      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
100      Affects results @ truncation level (cg2d match) and update output of
101       experiments: lab_sea(6), global_ocean.90x40x15(10),
102      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
103      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
104      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
105      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
106    
107    checkpoint59h
108    o pkg/exf:
109      - improve vectorization by moving if-statement out of loops in
110        exf_mapfields, exf_radiation
111      - exf_bulkformulae.F: introduce 2D fields and vectorize code
112    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
113    o testreport:
114      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
115        monitor & update offline_exf_seaice exp. output.
116      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
117    o pkg/seaice:
118      - bug fix in the evp solver: boundary conditions were affected be
119        masking of zMax/zMin (changes results)
120      - minor bug fix in boundary conditions in seaice_calc_strainrates
121        (changes results for no_slip)
122      - seaice_lsr.F: make interpolation of eta dependent on boundaries
123      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
124      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
125        stress formulation and no-slip boundary conditions
126    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
127      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
128    o pkg/seaice: a first HSALT time stepping equation has been checked in
129    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
130      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
131      without requiring DO-IF statements
132    o pkg/thsice:
133      use continuous power-law function for partition of energy between lateral
134      melting/freezing and thinning/thickening ; old code using step function
135      still available with #undef THSICE_FRACEN_POWERLAW
136      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
137    o testreport: change AD testing : check against results/output_adm.txt
138      using same scripts as for forward test.
139    
140    checkpoint59g
141    o adjoint testing: in preparation for changing testreport:
142      - output format: cost and grad written on separated lines
143      - ad output results in directory "results" (instead of "results_ad")
144    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
145    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
146    o pkg/ecco: allow user defined cost function contributions
147    o testreport:
148      Allow to choose (per experiment) the list of tested output variables
149       and the main variable (used to issue a pass/FAIL ) ;
150      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
151      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
152      Also modify printing of summary:
153       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
154       b) echo the list of tested variables in the individual summary.txt of
155          each experiment.
156    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
157      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
158      (but still depend on the tile decompostion of the domain).
159    o pkg/seaice: change a discretization detail to make the B-grid code
160      "more symmetric". This change is likely to remove all "ridges/leads" that
161      where quasi-aligned with the grid in B-grid solutions. It may also be
162      the solution to the stress coupling issues with the B-grid.
163    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
164      remove .cvsignore from input dir. (since testreport no longer run here).
165    o pkg/thsice:
166     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
167     - fix reshaping of sea-ice just after advection:
168       melt all the ice only if ice-volume is too small.
169     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
170       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
171     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
172    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
173      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
174    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
175      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
176      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
177      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
178      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
179      -> update output.txt
180    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
181     this affects truncation error: -> update output.txt of exp:
182      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
183      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
184    
185    checkpoint59f
186    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
187    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
188      a bounded range (in forward mode)
189    o pkg/ecco, ctrl, autodiff and mom_common:
190     internal parameter controls, completements of implementations
191    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
192    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
193      (not seem any difference in testing results).
194    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
195       at face corners.
196    o pkg/generic_advdiff:
197     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
198      loop range indices for computing vertical advection tendency
199      and do the calculation in the interior only (no overlap) ;
200      for now, only implemented for SOM advection (to save CPU time).
201     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
202    o exch2 adjoint
203      First set of changes:
204      - add exch2 hand-written adjoint templates
205      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
206        This will require cleanup in pkg/autodiff/*.F
207        (changed routines currently kept separate in verif. code/)
208      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
209        that used to hide exch2 or cubed-sphere specific code
210        (commented via 'cph-exch2')
211    o pkg/seaice
212      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
213    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
214       output of global_ocean.cs32x15.thsice .
215    
216    checkpoint59e
217    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
218      for B-grid vector (not yet tested) and C-grid vector (<- only used
219      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
220    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
221      (#ifdef ALLOW_SALT_PLUME)
222    o gather_2d/scatter_2d: removed halo regions
223    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
224      scheme and the corresponding test case (under front_relax dir). For now,
225      only available with Skew-flux form and not yet tested in realistic set-up.
226      adjoint: store directives updated, but gradient checks deteriorated,
227      so maybe GM/Redi adjoint is now broken.
228    o seaice adjoint
229      * add AREA, HEFF, HSNOW as control variable
230        (should not change lab_sea results)
231      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
232    o pkg/seaice:
233      * added computation of saltFlux in seaice_growth;
234        For time being, sea ice salinity is assumed constant
235        contribution of snow flooding to freshening of sea ice is neglected.
236        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
237        defaults to 0.0 in order to maintain backward compatibility.
238        Typical values for SEAICE_salinity are 4 to 10 g/kg.
239      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
240      * added SEAICE_availHeatFrac, which specifies fraction of surface level
241        heat content used to melt or grow ice
242      * commented out cap of HICE: it helps keep ice thinner
243      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
244      * applied OBCS T/S mask to HEFFM sea ice mask
245    
246    checkpoint59d
247    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
248     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
249     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
250    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
251     and change default value of parameter "GM_Small_Number";
252     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
253       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
254       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
255    o pkg/ecco: cost function when applying pkg/smooth to controls
256    o pkg/ctrl: add forcingPrecond run time parameter
257    o pkg/seaice:
258     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
259     - fix bug in metric terms of u-equation in LSR solver (implicit part),
260       changes verification/lab_sea
261     - rearrange implicit part of u-equation in LSR solver to make it easier to
262       read, understand, and debug. This causes changes at the truncation level.
263     - fix (serious) bug in the boundary conditions (sign error in the implicit
264       part) of the LSR solver. Changes all LSR results.
265     - fixed problem with HSNOW initialization to avoid thick snow when AREA
266       is initilized with small values - does not change lab_sea results.
267     - added HsnowFile initialization capability
268    o pkg/smooth: addition to model/src and pkg/ctrl so allow
269     initialization of pkg/smooth and application to control vector
270    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
271    o dependencies: pkg/profiles requires pkg/cal
272    o pkg/profiles:
273     - added option ALLOW_PROFILES_GENERICGRID
274         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
275         that interpolation information (grid points and coefficients) is provided
276         within the netcdf input files.
277         -> sample matlab scripts can be found in MITgcm_contrib/gael
278         that allow you to prepare netcdf input files.
279     - also modified: cleaner include statements, cleaner error print statements,
280       cleaner stops when error, and more tests of the netcdf input files consistency.
281    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
282    o pkg/seaice:
283     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
284       requires a new routine: seaice_diagnostics_fill.F
285     - make sure that seaice does not move if not forced (pressure replacement
286       method, Hibler and Ip, 1995), changes results
287     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
288     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
289       It is turned off by default (=-1.), because it changes the results.
290     - make it possible to read AREA from a file, too.
291    
292    checkpoint59c
293    o add S/R and diagnostics for oceanic mixed-layer depth
294    o move GMRedi call after all vertical mixing schemes (including KPP)
295    o pkg/thsice:
296     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
297      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
298    o pkg/obcs:
299     - bug fix for balance code
300    o pkg/seaice:
301      - allow values of SEAICE_elasticParm > 1
302      - add new parameter SEAICE_evpTauRelax as an alternative
303        to SEAICE_elasticParm
304      - make lsr boundary conditions free slip (by default), changes result
305      - add code for no slip boundary conditions for lsr
306      - set minimum of zeta to zero (and not 4e8) (changes results)
307      - add a cap on AREA after advecting AREA if seaice_growth is not called
308    o change calculation of Visbeck K:
309      - no longer depend on tapering scheme; instead, compute slope (limited
310        by GM_maxSlope). this is equivalent to what was comuted before with
311        clipping or linear tappering.
312      - fix vertical averaging (wrong by 1/2 level)
313      - leave the old version (but will not be maintained) within
314        #ifdef OLD_VISBECK_CALC / #endif
315      - update output of exp. ideal_2D_oce
316    o change error catch in calc_r_star to improve vectorization
317    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
318      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
319    o adjoint:
320      Re-organized adjoint checkpointing according to Matt Mazloff
321      (but with modifs/completions/cleanups)
322      Storing is now bundled into large arrays to optimized I/O
323      (and second step in cleanup of the_main_loop)
324    
325    checkpoint59b
326    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
327      - export/import (between ocean & coupler) fields needed for ocean DIC.
328    o pkg/seaice:
329      - get rid of three more exchanges seaice_calc_viscosities (required
330        different loop boundaries in seaice_lsr and seaice_ocean_stress)
331      - bug fix in seaice_ocean_stress (update of lab_sea required)
332      - reduce loop boundaries to necessary minimum also in seaice_evp
333      - go back to the old way of computing deltaC/Z as the adjoint likes that
334        better
335    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
336      passive tracer to an Age Tracer) + update output.txt
337    o pkg/exf:
338      - implement A-grid / C-grid selection for wind-stress input files.
339      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
340      for now, in exf_bulk_largeyeager04.F only :
341      - change implementation for case where windspeed + 2. components wind-stress
342        are read-in. AND use rhoConstFresh to convert evap.
343    o pkg/seaice:
344      - use correct EXCH_UV for wind-forcing (on A-grid).
345      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
346        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
347    o pkg/exf:
348      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
349      EXF_INTERPOLATION:
350      - merge global_with_exf/code version of exf_interp_read.F
351        to the main code ;
352      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
353        reading the file ; Important: This options needs to be defined to recover
354        previous code.
355        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
356      - no longer loose real*8 precision along the way when using exf_iprec=64.
357    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
358      - change discretisation of evp-solver in order to avoid another exchange
359        (changes lab_sea) and clean up a little
360      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
361        help the adjoint (this also changes the results slightly)
362      - add a few "_d 0" where they had been missing in seaice_evp.F
363      - cleaning up: remove unused seaice_calc_rhs.F
364    o pkg/exf: some cleaning-up:
365      - change various "constants" into runtime parameters
366      - cleaned-up Large&Yeager04 routine which should eventually
367        replace exf_bulkformulae.F (changed names of S/R and CPP)
368        and merged various ALLOW_ATM_WIND options
369     only used with thsice pkg (in thsice_get_exf.F):
370      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
371        which are used when useStabilityFct_overIce=TRUE (= the default)
372      - change default values of ice & snow emissivity and scale downward LW
373        by ice & snow emissivity.
374    o pkg/thsice:
375     fix few little problems, in thsice_calc_thickn.F:
376      - growth vertically (and not laterally) if iceFrac == iceMaskMax
377      - melt only laterally if hIce < hThinIce (as the comments say)
378      and in thsice_extend.F:
379      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
380      - start to form ice as soon as the minimum ice-volume is reachable.
381     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
382      and cpl_aim+ocn
383    o pkg/kpp
384     - move computation of surface related input fields to KPP into a new
385       subroutine kpp_forcing_surf.F
386     - remove wrong (within bi,bj loops) EXCH calls.
387     - little cleaning (add argument myThid in last position, cvs header ...)
388     - for now, fix conservation problem by exchanging KPPviscAz (may not
389       be the best fix)
390    o pkg/seaice
391     - check for inconsistent evp parameter/cpp-flag combination
392     - remove leftover errIO flat for obsolete name list error handling
393    o OpenAD
394     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
395    
396    checkpoint59a
397    o pkg/seaice: some parameter clarifications and a little bit of clean up
398    o pkg/thsice: rename run-time parameters:
399       himin       -> hIceMin
400       himin0      -> hThinIce
401       hihig       -> hThickIce
402       i0          -> i0swFrac
403       transCoef   -> bMeltCoef
404       frac_energy -> fracMelting
405      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
406       with default values (for now) that do not change the results.
407      remove old version of thsice vars advection in pkg/seaice.
408    o in FFIELDS.h:
409      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
410      - make pLoad & sIceLoad always available (but still only used if
411         ATMOSPHERIC_LOADING is #define).
412    o pkg/kpp: replaced _KPP_RL with _RL
413    o bug fixes for vertical diffusivity computations when both KPP and
414        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
415        are no longer updating the vertical diffusivity array
416        (passed as argument) but are (re-) setting those arrays.
417    o pkg/seaice: fix bug in evp solver, while doing that
418      - change (improve?) discretization of stress computations for both
419        cgrid-lsr and evp solver
420      - add a new routine to compute strain rates
421      - the above changes lab_sea results
422      - add no slip conditions for evp solver (off by default), lsr-version
423        may follow
424      - fix exchange for shear at Z-points (does not change lab_sea)
425      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
426        (to force the user to pick a time step since there is not "safe" way
427        of choosing it)
428      - add principal stress diagnostics
429      - rearrange fields for evp a little to avoid having to call a: too many
430        exchanges and b: exchanges for stress trensor components which we do
431        not have.
432      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
433        of evp, complete rewrite for lsr case (latter is does not yet work
434        in all cases)
435    o pkg/kpp: add code to have mixing in shelf ice caverns
436      - add myThid to all kpp routines (long overdue)
437    
438    checkpoint59
439    o pkg/exf:
440      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
441        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
442      - move exf header files from lower_case.h to UPPER_CASE.h ;
443        add missing cvs Header & Name
444      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
445      - add namelist param. selectStressGridPosition, exf_monFreq
446      - retire many _CLIM routines, and remove data.exf_clim
447        + params moved to data.exf
448        + climsst, climsss now handled by exf_set_gen, i.e.
449          climss?period=0 refers to constant field,
450          climss?period=-12 to monthly forcing
451      - split up namelists in data.exf
452    o pkg/seaice:
453      - remove seaice_exch and seaice_exch_uv
454      - remove superfluous exchange of theta
455      - add myThid to seaice_budget_ocean/ice
456      - add new interface for atmospheric wind forcing (C-grid only)
457        + new routine
458        + two new field (taux, tauy for stress over ice)
459        + removed one global field (DAIRN) for C-grid case only
460    o pkg/thsise
461      - 2nd set of modifs for thsice adjoint in conjunction with exf
462    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
463    
464    checkpoint58y_post
465    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
466      vertical diffusivity, similar to that in MOM4; turned on using
467      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
468      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
469    o Added capability for 3D specification of background vertical diffusion
470      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
471      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
472      "data" file that contains the 3D vertical diffusivity coefficients.
473    o ice dynamics (pkg/seaice) with thsice thermodynamics:
474      - add code within pkg thsice to advect & diffuse sea-ice fields
475      similar to (and will replace) what has been added in  seaice_advdiff.F,
476      but: - conserving Mass, Heat & Salt.
477           - better when using non-linear advection scheme (not yet fully tested)
478           - can also be used in atmospheric set-up (for now, only the diffusion).
479    
480    checkpoint58x_post
481    o IO option for global-file compact format:
482      - add options when generating topology (utils/exch2/matlab-topology-generator)
483      - add I/O capability (pkg/mdsio).
484      - adapt utils/matlab/rdmds.m to read this format.
485      for now long-line format not yet supported by pkg/mdsio (& exch2).
486    o shelfice: add a few diagnostics
487    
488    checkpoint58w_post
489    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
490      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
491      (and replace horiVertRatio in NH code).
492      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
493                         and tutorial_plume_on_slope (sensitive to truncation)
494    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
495      directly to drive seaice model (C-grid only)
496    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
497     - reintroduce computation of wind from stress,
498     - compute tau (in exf_bulkformulae.F) from windstress averaged to
499       mass points to avoid tau = 0
500     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
501    o rdmnc.m: make it work with "global" files created with gluemnc
502    o rdmnc.m : some improvements in dealing with singleton dimension
503      (tested on all testreport mnc output files).
504    o genmake2: disable pkg/profiles if netcdf test fails.
505    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
506    o move call to cal_readparms up to make calendar parameters/variable available
507      to all packages
508    
509    checkpoint58v_post
510    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
511      useDynP_inEos_Zc tested.
512    o pkg/exf: changes to properly interpolate/mask/scale initial fields
513    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
514      and portions thereof.  See read_cs.txt for description and examples.
515    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
516      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
517      following the great-circle arc between those 2 points.
518    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
519      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
520    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
521     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
522     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
523     - still needs work (not working with some options ; efficiency to improve)
524       and serious testing.
525     - use this scheme for temperature & salinity in 2 advection test exp.:
526       advect_xy & advect_xz, respectively.
527    
528    checkpoint58u_post
529    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
530    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
531    o testreport: add option "-skipdir" to skip some test.
532    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
533      momentum calculation.
534    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
535    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
536      remove checkpoint.F and the_correction_step.F (no longer used);
537      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
538    o add option (linFSConserveTr) to correct for tracer source/sink due to
539      Linear Free surface
540    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
541    o pkg/thsice: fix reading mnc-pickups
542    
543    checkpoint58t_post
544    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
545    o pkg/mdsio:
546     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
547       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
548       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
549     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
550     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
551       either MDS_READ_FIELD or MDS_WRITE_FIELD )
552     - new S/R (to replace MDSWRITEMETA), which allows to write more
553       informations (variable names, time ...) to meta files.
554     - modify rdmds.m to give back the meta file content.
555    o pkg/diagnostics: change vertical interpolation to be safer, and more
556       flexible (define p-levels to interpolate to in data.diagnostics);
557      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
558       diagnostic pointer.
559    o pkg/seaice: more cleaning up of seaice_growth, added many comments
560    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
561    o fix multi-category seaice:
562     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
563       SEAICE_MULTICATEGORY
564     - fix short wave heat flux
565    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
566       and allow to use EVP solver. Change forward lab_sea: test both EVP
567       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
568    o Initial check-in of lab_sea adjoint
569      (very similar to natl_box_adjoint/code_seaice)
570      * used C-grid and EVP solver
571      * used KPP, GM/Redi
572      * uses inAdExact=.TRUE.
573      * gradient checks fail for both ADM and TLM
574        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
575        f.d. gradients actually seem more problematic than ADM, TLM gradients;
576        issue is related to forward mismatch between g77 an ifort
577    o pkg/seaice: overhaul of thermodynamics
578     - growth.F and groatb.F are replaced by new routine seaice_growth.F
579     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
580     - move a few global fields out of SEAICE.h into seaice_growth.F and
581       make them 2D (FICE/QNETO/ ...)
582     - remove FO (it is the same as QNETO)
583     - introduce a few local fields to avoid modifying external fields such
584       as atemp, etc.
585    
586    checkpoint58s_post
587    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
588      changed exf_set_gen.F so that
589        genperiod=0 means input file is one time-constant field and
590        genperiod=-12 means input file contains 12 monthly means
591    o CG2D: use pre-computed solver main-diagonal (stored in common block);
592      this affects truncation error ; generate new output file for exp. which
593      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
594        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
595        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
596        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
597        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
598        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
599    o start implementation of deep-atmosphere and anelastic formulation
600    o verification: remove 2nd copy of input files and use script "prepare_run"
601      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
602    o mom_common/vecinv/fluxform: fix a few initialisation isssues
603    o profiles: fix for multithreaded case
604    
605    o diagnostics: rename few diags:
606      s/'PRESSURE'/'RCENTER '/g
607      s/'TICE    '/'oceFreez'/g
608      s/'TAUX    '/'oceTAUX '/g
609      s/'TAUY    '/'oceTAUY '/g
610      s/'SWFLUX  '/'oceQsw  '/g
611      s/DIFx/DFxE/g
612      s/DIFy/DFyE/g
613      and add few ocean-forcing diagnostics:
614      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
615    o modifications to pkg/seaice/growth.F and budget.F, which change results of
616      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
617      as actual snow thickness.  It now refers everywhere to effective snow
618      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
619    
620    checkpoint58r_post
621    o modifications to pkg/seaice/growth.F, which change results of
622      lab_sea experiment: fixes pertain to melting snow over open water, to
623      masking EVAP under sea ice, and to using the correct AREA variable for
624      computations of EVAP, PRECIP, HSNOW, and GHEFF
625    o add ability to read bathy, salt, and theta using MNC (off by def)
626    o add flooding algorithm and advection of HSNOW for pkg/seaice;
627      both are turned off by default and do no change any results
628    o seaice advection with pkg/thsice: a step toward the use of non-linear
629      advection scheme, but #ifdef or commented out for now (requires more EXCH).
630    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
631      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
632      in natl_box (affects results @ truncation level: update output.txt)
633    o multi-threading and IO:
634      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
635      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
636        (needed to work with SingleCpuIO): tested in all verif. exp.
637    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
638      affects the results (but none of the verification test uses this scheme).
639    o Adding some pkg/diagnostics capability to pkg/seaice
640      (will certainly be subject to changes)
641    o ctrl: adding new control variables:
642      lwflux, lwdown, evap, snowprecip, apressure, runoff
643    
644    checkpoint58q_post
645    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
646      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
647      high_res_cube configuration by 4% on Columbia.
648    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
649      add (in global_with_exf/code) a version of EXF_INTERP_READ without
650      dynamical allocation (seems to work in multi-threaded).
651    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
652      single CPU io) so that TAF does not have to see EESUPPORT.h
653    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
654    
655    checkpoint58p_post
656    o obcs: stop if obcs is used with useCDscheme = .true.
657    o shelfice:
658     - fix a sign error so that no slip at shelfice interface works
659     - remove stop for combination non-hydrostatic code and shelfice. That does
660       not mean, that the results are correct, but at least they are numerically
661       stable
662    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
663    o added adjoint exch routined for all exch*3d* routines
664      and updated flow directives
665    
666    checkpoint58o_post
667    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
668      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
669    o change controling S/R for writing pickup file (new S/R do_write_pickup)
670      and clean-up reading/writing of pickup files.
671    o fix local version of read/write pickup (NH part) in rotating_tank/code
672    o simplify EXCH interface:
673     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
674     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
675    o added the regrid package
676    o shelfice:
677     - add a simple boundary layer scheme to reduce noise
678     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
679    
680    checkpoint58n_post
681  o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to  o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
682     local variable (not in common block).     local variable (not in common block).
683  o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.  o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.

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