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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.911 by jmc, Sun Nov 25 22:28:30 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
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
682       local variable (not in common block).
683    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
684      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
685      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
686        to work with SingleCpuIO.
687    o add "_d 0" to real constant of pkg/cfc subroutines ;
688       update exp. cfc_exemple & tutorial_cfc_offline output files.
689    o multi-threading and IO:
690      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
691        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
692      - barrier before and after reading.
693      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
694      - avoid using MDS_WRITELOCAL for LAND pkg output.
695      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
696        common-block variables ; Allows multi-threading with master-thread IO.
697    o change default MAX_NO_THREADS from 32 to 4 ;
698      and stop cleanly when MAX_NO_THREADS is too small.
699    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
700    
701    checkpoint58m_post
702    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
703       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
704    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
705       keep global_ocean.90x40x15 (for AD testing) with former secondary test
706       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
707    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
708        add MITgcm_tutorials (= code + all the tutorials)
709    o ecco, option to compute cost for total ssh (mean+anom)
710    o consistent with addition of ptracer and ssh in pkg/profiles
711    o profiles: adding ptracer and ssh
712    o testreport: change multi-test output-file name
713      (from output.txt.{name} to output.{name}.txt)
714    o profiles: now ok for mutli-tiles case
715    o seaice: add 4 parameters for different advection schemes for area,
716      (effective) seaice thickness, enthalphy, and snow height. Their default
717      is the standard parameter SEAICEadvScheme
718    o calc_gw:
719     - add cosFacU in zonal viscous flux (harmonic.visc.).
720     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
721       of tutorial_plume_on_slope.
722    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
723    o calc_gw: true flux-form, account for horizontal grid spacing.
724      update rotating_tank results, but not plume_on_slope (affected at
725      truncation level, 11 digits).
726    
727    checkpoint58l_post
728    o calc_gw:
729     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
730     - remove side-drag for now (need to fix it); update plume_on_slope results.
731     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
732    o commit code to make SST/SSS weights spatially variable
733      (based on either variable in-situ or variable initial T/S weights)
734    o pkg/ecco:
735      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
736        now based on horizontally varying weights wthetaLev, wsaltLev
737      * cost_averagesflags now returns year indices in addition to day, month
738      * sflux balance is performed on annual basis
739        (sflxumm, sfluxmm2, bal_sfluxmm)
740      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
741        including separate counting and multipliers
742    o pkg/rbcs
743      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
744    
745    checkpoint58k_post
746    o testreport:
747     - always build in dir. "build" (if not there, mkdir build instead of building
748       & running in input)
749     - run in dir run (if it exists), in build otherwise.
750     - call prepare_run (if input/prepare_run exists)
751     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
752    o pkg/exf modifications to interpolation and rotation routines for more
753       reasonable treatment of North Pole singularity: for tracers North Pole
754       value is set to northernmost zonal-mean value, for zonal velocity it is
755       set to zero, and for meridional velocity it is set to northernmost value.
756    o pkg/exf/exf_check_range.F
757     - add tile index to diagnostics and move stop statement to the very
758       end of the routine.
759    o pkg/diagnostics: (diagnostics_main_init.F)
760      define title of isomorphic variables according to the current config.
761    o pkg/thsice with pkg/seaice dynamics:
762    - fix domain of computation (interior only, required for exf) and do exchanges
763    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
764    o towards a standard way of dealing with multi-threading in MONITOR
765      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
766    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
767       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
768    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
769    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
770    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
771       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
772    o tracer advection:
773     - clean-up and simplify calc_common_factors.F
774     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
775       advection subroutine (but still not used within DST advection S/R)
776    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
777    
778    checkpoint58j_post
779    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
780      from file (collects calls previously in FORWARD_STEP)
781    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
782    o adjoint store dir. adjusted accordingly
783    o genmake2
784      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
785    
786    checkpoint58i_post
787    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
788      on wind stress (SEAICEstressFactor defaults to 1.)
789    o Total number of Timers is finite (<=40): comment out 2 non-essential one
790      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
791    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
792      on CS-grid: no longer loosing mass.
793    o exf & curvilinear-grid: no longer modify longitude xC & xG.
794    o pkg/ggl90: fix sloppy output and fix a bug
795    o pkg/seaice: added SEAICEuseEVPpickup parameter
796      - Set to false in order to start EVP solver with
797        non-EVP pickup files when using SEAICEuseEVP
798      - fix sign error in diffusion in seaice_calc_rhs
799    
800    checkpoint58h_post
801    * Modifications for bottom topography control
802      o replace hFacC by _hFacC at various places
803      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
804      o add non-self-adjoint cg2d_nsa
805      o update autodiff support routines
806      o re-initialise hfac after ctrl_depth_ini
807      o works for 5x5 box, doesnt work for global_ocean.90x40x15
808    * Adding verification for 5x5 box (4-layer) bottom topography control
809    
810    checkpoint58g_post
811    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
812       used for mean seasonal cycle, mean diurnal cycle); add an example
813       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
814    o pkg/ggl90:
815      - add parameter (minimum surface kinetic energy)
816      - fix bug (avoiding division by zero)
817    o couple pkg/thsice to pkg/seaice:
818      - modify advection in seaice to accomodate new scalar fields to be advected
819      - only muliDimAdection scheme work with seaice/thsice
820      - mapping of thsice-variables to seaice-variables, back and forth
821      - does not break the verification experiments, but does not give the
822        desired results either
823    o pkg/seaice
824      - make (default) second order advection a bit less confusing?
825    
826    checkpoint58f_post
827    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
828      to pkg/seaice):
829      - new routines thsice_map_exf and thsice_get_exf provide the interface
830      - add an additional formal parameter to thsice_solve4temp
831    o pkg/exf:
832      - add new fields wspeed, snowprecip (to be able to couple to thsice)
833      - correct Stefan-Boltzmann constant
834      - new parameter for longwave surface emittance
835      - separate some stuff from exf_bulkformulae into new routines  
836        exf_radiation, exf_wind
837      - add new parameters and constants: longwave emissivity for ocean, ice
838        and snow, evaporation parameters over ice
839      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
840        either wind from stress or stress from wind
841    o pkg/thSIce:
842    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
843    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
844       and THSICE_CALC_THICKN
845    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
846    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
847      to make debugging easier.
848    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
849    o pkg/bulk_force:
850      - clean-up comments and parameters ;
851      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
852    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
853      generate new output for test-experiment: aim.5l_cs.thSI
854    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
855      testreport accordingly
856    
857    checkpoint58e_post
858    o SEAICE_CGRID adjoint done
859    o R_STAR adjoint implemented.
860      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
861      * need to sort out init. of h0facc, etc.
862    o Make pkg/profile fully independent of ecco,cost, etc. stuff
863      to be able to use it in pure forward.
864    
865    checkpoint58d_post
866    o upgrade simple test-experiment to tutorial example:
867     step.1: duplicate the experiment and (step.2) will remove the old copy.
868      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
869      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
870      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
871      tutorial_global_oce_biogeo    <- copy of dic_example
872      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
873      tutorial_plume_on_slope       <- copy of plume_on_slope
874      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
875      tutorial_global_oce_optim     <- empty for now (David ?)
876      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
877     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
878    o correct a sign problem in cost_scat.F
879    o obcs and ptracers: fix boundary conditions for advections schemes
880      with larger stencil
881    o thsice adjoint: start
882    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
883      completeness
884    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
885      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
886    o ptracers adjoint:
887      * avoid extensive recomputatations
888      * fix missing re-init. of gptr (missed by TAF)
889    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
890      me to turn off the excessive output to STDOUT that this package produces
891    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
892      and add those terms in Vector-Invariant formulation.
893    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
894      if the control period (xx_hfluxperiod etc) is 0
895    o in profiles pkg, clean routines and fix details
896    o in ecco pkg, reading ssh data:
897      fix problem in case the model does not start at iter0=0
898    o fix mnc-pickup/restart for ptracers
899    o new package prifiles:
900      code to compute profile-based cost by Gael Forget
901      (modifs in ecco, ctrl, autodiff)
902    o Benign bug fix in initialization (spotted by M. Mazloff) of
903      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
904    
905    checkpoint58c_post
906    o adjoint: finish NLFS adjoint and provide reference output in
907      verification/global_ocean.90x40x15/results_ad_nlfs
908    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
909      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
910      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
911      with SEAICE_CGRID defined.
912    o move calendarDumps from "data" to "data.cal" and clean-up the code
913      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
914    o add useEXF & useCAL flags (for now, set in hard-coded way)
915    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
916      (were missing in NH mode, and wrong in quasihydrostatic mode).
917      waiting for Chris updated version of calc_gw to add those CALLs.
918    o fix bug in quasihydrostatic S/R ;
919      add a test for this option: global_ocean.90x40x15.qshyd
920    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
921      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
922    o add on/off flag useOffLine for package OFFLINE
923    o seaice:
924      - modify advection so that it works also on the C-grid
925      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
926        problem in multi-tile runs with C-grid
927      - add flags for clipping ice velocities and/or masking solver forcing
928      - fix drag (ocean on ice) formulation and a bug that caused noise in the
929        C-grid solver
930      - added a few comments to seaice_diffusion.F
931      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
932        are now exclusive)
933      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
934        required re-ordering the code a little:
935       + make DAIRN global variable (defined in SEAICE)
936       + move computation of the viscosities eta and zeta into a new separate
937         routine (because I need to recompute them in seaice_ocean_stress.F)
938    
939    checkpoint58b_post
940    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
941      update output.txt of exp. aim.5l_cs.thSI
942    o various mnc cleanups and improvements:
943      + shrink lookup tables by factor of ~4
944      + better error reporting when running out of lookup space
945      + able to handle longer path/file names (up to 500 chars)
946    o adjoint:
947      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
948      - TBD: "hidden" mom_vecinv recomp. in dynamics
949    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
950     (allow to differentiate between forcing components using new integer flags:
951      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
952     and add new flag to put Dissipation tendency out of Adams-Bashforth.
953    o ecco
954      - enable trend removal from SSH anomaly obs.
955    o adjoint
956      - a fix for PmEpR when #undef EXACT_CONSERV
957      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
958      - try to fix "hidden" recomp. in forward_step for NLFS
959        (NLFS seems broken sometimes after I checked it in)
960    o seaice:
961     - add c-grid version of the dynamic solver:
962       + three new routines that are the c-grid substitute lsr, dynsolver
963         and ostres
964       + put a few fields that were local to dynsolver into global common
965         blocks, so that I can move the computation of stresses etc into
966         seaice_lsr (saves coding but may break the adjoint).
967     - replace more hardwired parameters by runtime parameters
968     - add ice masks that mask the rhs of the implicit solvers where there
969       is no ice (commented out in seaice_dynsolver, because i am not sure
970       if this works properly), eventually this should replace the clipping
971       of ice velocities in seaice_dynsolver to +/-40cm/s.
972    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
973      include it only where its needed
974    o move balancing of fluxes before the call of external_forcing_surf
975    o seaice:
976      - correct units of turning angles (now they are really in degrees)
977      - move computation of GWATX/Y out of main routine into dynsolver
978      - initialize GWATX/Y in seaice_init
979    o Apply mask on Fresh-Water flux (needed for SSH forcing).
980      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
981    o seaice: add runtime flags for turning angles (default to zero)
982    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
983      and trend from exf forcing and ctrl control adjustments
984    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
985      (since checkpoint57x_post)
986    o change the default rotation period to 86164.s = the Earth rotation
987    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
988      and based on a reference stratification. Tested within hs94.cs-32x32x5.
989    o seaice advection: add code for choosing between the default (2nd order
990      central differences) and multiDim advection schemes provided by
991      pkg/generic_advdiff
992    o seaice:
993      - removed all references to SEAICE_GRID.h fields from
994        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
995        (cubed-sphere configuration will change a little)
996      - grid computations in seaice_init are obsolete now.
997      - cleaned up code a little so that is easier to read (hopefully).
998      - added new (better?) discretizations of default advection and diffusion
999        (turn on with SEAICEuseFluxForm)
1000      - replace 1 in 3d global fields by kSurface in growth.F
1001      
1002    checkpoint58a_post
1003    o seaice:
1004      - bug fix in advect.F
1005    o shelfice:
1006      - separate shelfice load anomaly from pload (breaks with time
1007        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1008        Its default is 0., but it may be computed more cleverly from (unknown)
1009        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1010        done offline. A good approximation of the pressure load anomaly is
1011        necessary to avoid large initial adjustment processes underneath
1012        deep-reaching shelfice.
1013      - small fix in ISOMIP shelfice_thermodynamics
1014      - add more sophisticated thermodynamics of Hellmer (1989), this is
1015        now the default
1016      - give a few constants more intuitive names
1017    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1018      if bulk formulae are used in long integration (especially EmPmR). Turn
1019      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1020      if balancePrintMean, the imbalance that is substracted is printed to
1021      STDOUT.
1022    o fix bug (typo) in obcs_apply_eta.F
1023    o add a new package shelfice which enables us to model the circulation
1024      underneath shelf-ice with draughts of hundreds of meters.
1025     - works
1026     - to do: + include improved thermodynamics
1027              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1028                instead of new field kTopC
1029              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1030                instead of new field R_shelfIce and new code in ini_depth.F
1031                and ini_mask_etc.F?
1032              + adjust vertical mixing schemes?
1033    o seaice pkg:
1034     - add a cpp-flag to include a simple formula for a salinity dependent
1035       freezing point of sea water at the surface
1036     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1037       meridional stresses are now different (and hopefully correct)
1038    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1039       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1040       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1041    o pkg/diagnostics: add options and parameters for regional-statistics
1042       diagnostics ; define regions by reading a region-mask from a file
1043       (might add other options later)
1044    o pkg/bulk_force:
1045     - add option and parameters to use AIM surface-flux formulae.
1046     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1047       others forcing fields (defined in PARM05, parameter file "data") are loaded
1048       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1049     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1050     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1051     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1052       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1053     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1054    
1055    checkpoint58
1056    o add "--embed-source" option to genmake2 which, when the supporting
1057      tools can be compiled (as determined by genmake2) will turn on the
1058      embed_files package which then embeds the entire MITgcm source code
1059      (*.[fFhc] + Makefile) used for the build within the executable
1060      - requested by CNH but off by default
1061      - adds a paltry <9MB to the mitgcmuv executable in most cases
1062      - only writes the output when useEMBEDSRC in eedata is true
1063    o clean up 3-dim. relaxation codes:
1064      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1065      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1066      * Thanks to Tom Haine for testing!
1067    
1068    checkpoint57z_post
1069    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1070      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1071    o fix the pickup behavior for obcs in combination with ptracers
1072    o fix a bug in ptracers_external_fields_load
1073    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1074      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1075    o transfered surface NH pressure to eta field (if exactConserv).
1076    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1077         and update lab_sea output.txt file.
1078    o completing 3-dim. relaxation code: additional term
1079         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1080      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1081      * At compile time, in "EXF_OPTIONS.h" set
1082          #define  ALLOW_CLIMTEMP_RELAXATION
1083          #define  ALLOW_CLIMSALT_RELAXATION
1084      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1085          tauThetaClimRelax3Dim = 15552000.0,
1086          tauSaltClimRelax3Dim  = 15552000.0,
1087      * 3 cases:
1088          1) Use a constant-in-time 3-dim. field
1089          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1090          3) Real-time relax. to time-evolving prescribed field
1091    o Adding Laplacian-type smoothness constraint on
1092      initial and boundary (forcing) controls (ic, bc)
1093      * enable at compile-time via
1094        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1095      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1096      * Absolute scale somewhat unclear so far
1097      * no area weighting was included since no other cost term does so far
1098    
1099    checkpoint57y_post
1100    First step for a NLFS adjoint
1101    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1102    o new init. routines for calc_r_star, calc_surf_dr
1103    o still need to deal with ini_masks_etc
1104    o testreport seemed happy
1105    checkpoint57y_pre
1106    
1107    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1108    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1109    o add new offset feature to offline pkg (plus minor cleanup)
1110    o cfc fixes for final year of integration
1111    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1112      be in GCHEM_OPTIONS).
1113    
1114    checkpoint57x_post
1115    o fix testreport Pb in multiple test experiment.
1116    o cleanup our namelist syntax in verification:
1117      - make it more F95 standards compliant (some work still needed)
1118      - allows the vast majority of our tests to work with gfortran
1119    o Non-Hydrostatic:
1120     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1121     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1122    o Allow to apply AB on T,S rather than on AB(gT,gS):
1123     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1124     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1125       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1126     - need a "clever" read_pickup to restart from the other AB formulation
1127    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1128    o remove some unused variables (reduces number of compiler warnings)
1129    o adjoint
1130      * Disable useVariableViscosity for adjoint for time being
1131        (there are a number of extensive recomputations)
1132      * Initialize certain variables needed for adjoint
1133    
1134    checkpoint57w_post
1135    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1136                 fix the singleCpuIO RS version of MDSWRITEFIELD
1137       and add a WARNING if using globalFiles=T with multi-processors.
1138    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1139      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1140    o tracer advection scheme:
1141      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1142       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1143       was not very convenient).
1144      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1145       (further tests needed for the implicit DST & Flux-Limiter schemes).
1146    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1147      and sRef for convenience, handy, when you want to initialize
1148      ptracers in a large domain with a constant non-zero value. Also,
1149      untangle ptracers_init.F a little.
1150    
1151    checkpoint57v_post
1152    o change dome exp. to use variable viscosity in side-drag terms.
1153    o remove all the files from the cfc_offline test since they are now
1154      incorporated into tutorial_cfc_offline which has been producing
1155      identical results for a few days of testing
1156    o add new parameter: sideDragFactor to enable half-slip-side BC
1157      and change side-drag S/R to use viscosity from mom_calc_visc
1158      (can switch back by setting sideDragFactor=0.); affects results at
1159      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1160       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1161    o vorticity & strain are now computed without masking, to account for
1162      no-slip-side BC in variable viscosity calculation ; mask is applied
1163      anyway later on, before computing advection/coriolis terms.
1164    o modify exp4 to test new obcs support for reading from external files
1165      and for passive tracers
1166    o fix behavior of ptracers_monitor when monitor output is written to a
1167      netcdf-file; still not independent of monitor.F (writes in the same
1168      file).
1169    o change default value of tRef (put a uniform, meaningful value for ocean
1170      & atmos) and initialize sRef (was missing, as Martin mentioned).
1171    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1172      to be proportional to enstrophy dissipation length.  Thus,
1173       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1174      This is now consistent with Smagorinsky and with the manual.
1175    
1176    checkpoint57u_post
1177    o OBCS and PTRACERS: add open boundary support for passive tracers
1178      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1179        OB-values from file; this is not different from the way theta and salinity
1180        are treated
1181      - however, Orlanski-radiation conditions are not supported, and the model
1182        will stop if you use pTracers and Orlanski at the same time.
1183      - beefed up the rountine obcs_external_fields_load: now only those open
1184        boundary values are overwritten with values from files for which there
1185        are really files, otherwise the OB-fields remain untouched. This makes
1186        it possible to use different OBs at different ends of the domain (as
1187        with EXF)
1188    o reduce number of exch calls in shap_filt (s2).
1189    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1190      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1191    
1192    checkpoint57t_post
1193    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1194    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1195      same truncation, independent of the face number: affects affects several
1196      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1197    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1198      note that biharmonic viscosity + no-slip was not tested in any experiment.
1199    o fix bug in non-linear free-surf side-drag ; generate new output for
1200      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1201    o make mnc honor the writeBinaryPrec flag for most kinds of output
1202    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1203    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1204      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1205    o add brackets in multi-terms sum to get same truncation, independent of
1206      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1207      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1208    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1209      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1210      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1211      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1212      Suggested values of viscosity parameters found in mom_calc_visc.
1213      Many new viscosity diagnostics available.
1214    
1215    checkpoint57s_post
1216    o Add clearing-house for viscosity calculations, mom_calc_visc and
1217      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1218      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1219      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1220      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1221      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1222      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1223      ViscAhStrain and viscAhTension are now retired.
1224    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1225    o In response to JMC's bug report, genmake2 now ignores any soft-links
1226      that it finds in the *current* directory when searching for files.
1227      Soft-links found in any other source directories will still work as
1228      they did before.
1229    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1230      a C routine to unlimit the stack size
1231    o mnc-ify pkg/aim snapshot vars
1232    o mnc-ify pkg/land as requested by Daniel
1233    o various changes to mnc including:
1234      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1235      - output can now be grouped so that all files within a group
1236          change the ITER portion of their names in lock-step together
1237      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1238          and works with both EXCH1 and EXCH2 (but needs more testing)
1239      - writing works for all verification test cases w/ g77 on Linux
1240    
1241    checkpoint57r_post
1242    o make MNC variable initialization happen earlier
1243    o add diagnostics for (almost) each term of the momentum Eq.
1244    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1245    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1246    o remove MINIMAL_TAVE_OUTPUT option ;
1247      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1248    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1249      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1250    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1251    o add time-dependent SST, SSS control
1252    o cost terms in ecco/ modularized (new cost_generic.F)
1253    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1254    o new infrastructure for seaice model vs. obs misfits in seaice/
1255      * driver from the_main_loop.F is seaice_cost_driver.F
1256      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1257      * gradient check in Exp. 6a of natl_box_adjoint/
1258    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1259      (see README file)
1260    
1261    checkpoint57q_post
1262    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1263    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1264      - bug was reported by Jean-Michel and Ian Fenty
1265    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1266      update exp. cpl_aim+ocn output.
1267    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1268      Needed for high-res. runs with large global files
1269      to be able to limit tapelev size
1270    o Changed some tests for adjoint:
1271      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1272      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1273      * global_ocean.90x40x15/ back to default 3-level checkpointing
1274    o Modifications to enable scripted COMMON to MODULE conversion
1275      * verification/OpenAD/code/ has necessary scripts and description;
1276      * converts, compiles and runs successfully;
1277    
1278    checkpoint57p_post
1279    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1280    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1281      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1282    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1283    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1284      (was already the case for dissipation with mom_vecinv,
1285       and also the case for grad.PhiHyd when staggered-timeStep)
1286      This will allow to put dissipation out-off the AB time-stepping.
1287     Unfortunately, affects truncation error. Update output of exp. that "fails"
1288      (cg2d matching number) and leave the others for later: front_relax(10),
1289      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1290      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1291    
1292    checkpoint57o_post
1293    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1294      (2) its ready to be documented during the 20050801 DocFest
1295    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1296      for ideal_2D_oce and lab_sea on linux_ia32_g77
1297    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1298      in global1x1_tot/code_seaice_adj to access indices 32, 33
1299      (worth another tag)
1300    
1301    checkpoint57n_post
1302    o adding precip control xx_precip 32
1303    o adding swflux control xx_swflux 33
1304    o Replacing 10 forcing penalty cost routines by 1 generic.
1305    o Implementing partitioning in time-mean and variable adjustment
1306      for atmos. state.
1307    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1308    o in natl_box_adjoint:
1309      * updated exp 1 to 10
1310        (but does not have time-mean vs. variable split results yet)
1311    o updated global1x1/*_seaice_adj/
1312      to incorporate latest changes
1313    o enable useSingleCpuIO for mdsio vector routines
1314      (applies in particular to tapelev I/O)
1315    o removed inefficient K-loop in all active_file*control*.F
1316    
1317    checkpoint57m_post
1318    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1319      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1320    o pkg/exch2: filling of face-corner halo regions is optional
1321      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1322    
1323    checkpoint57l_post
1324     tag before updating tutorials (pre-release-2)
1325    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1326       for output and interpolation of input fields onto model grid)
1327    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1328       Affects results of exp. rotating_tank ; update output.txt.
1329    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1330          and taking the square quantity and/or using a fraction-weight field.
1331    o fix aim_diagnostics_init.F mate numbers.
1332    o add mnc output capability to diagnostics/diagstat and update
1333      our cvsignore files for the ACSII output generated
1334    
1335    checkpoint57k_post
1336    o lab_sea now uses diagnostics package and provides a suite of
1337      new EXF diagnostics output.
1338    
1339    checkpoint57j_post
1340    o exf
1341      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1342        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1343        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1344      * extended diagnostics output
1345        - now includes all EXF variables
1346        - hs, hl moved to common block
1347        - separate S/R for diagnostics, called after ctrl vector is added
1348        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1349        - EXFqnet contains true Qnet (i.e. includes qsw)
1350      * updated verif. lab_sea, global_with_exf
1351      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1352        to ensure that diagnostics sees a true EXFqnet
1353    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1354    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1355      several times with different frequencies.
1356    o mnc-ify the thsice package as requested by Daniel Enderton
1357      - the monitor--MNC output needs work
1358      - many attributes need to be added (most are currently blank)
1359    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1360      - many attributes need to be added (most are currently blank)
1361    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1362    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1363    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1364      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1365         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1366    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1367     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1368    
1369    checkpoint57i_post
1370    o Diagnostics package was changed: diagnostic allocation is now deactivated
1371      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1372    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1373      add 1rst Order upwind vertical Shear.
1374    o add a quick fix for A/B checkpointing in OFFLINE mode
1375    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1376      end-run around the C/Fortran linking horror in eesup/src/timers.F
1377    o added pkg/runclock: allows user to terminate run based on wall clock
1378    o added non-hydrostatic scaling parameter: nh_am2
1379    o pkg/my82: futile attempt to make results compiler-independent by adding
1380      some "_d 0", etc. no effect.
1381    o for mnc output, fill the 'T' coordinate var with myTime and create a
1382      separate 'iter' variable for iteration count
1383    o pkg/diagnostics:
1384      add new capability: output of Global/Regional & per-level statistics ;
1385      tested against monitor output (including land & thSIce) on various exp.
1386    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1387    
1388    checkpoint57h_done
1389      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1390      data.diagnostics, data.gchem, data.ptracers) is done.
1391    
1392    o pkg/diagnostics: prepare for Global/Regional statistics.
1393      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1394    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1395      and rename it: DIFFERENT_MULTIPLE
1396    
1397    checkpoint57h_post
1398    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1399    o pkg/diagnostics: change output frequency, now in seconds (instead
1400      of Nb of iterations). This requires to change data.diagnostics.
1401    checkpoint57h_pre
1402    
1403    o in mnc, let the user create the output dir if both mnc_outdir_date
1404      and mnc_outdir_num are false
1405    o add fflags() to pkg/diagnostics which allows one to specify, on a
1406      per-file basis, the file precision [default behavior is unchanged]
1407    o added diagnostics to pkg/kpp, including computation of mixed layer
1408      depth based on a temperature/density criterion
1409    o updated verification/natl_box to test the new pkg/kpp diagnostics
1410    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1411    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1412    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1413      not mnc -- this mistake was found by JMC and is now corrected
1414    
1415    checkpoint57g_post
1416    o add Adams-Bashforth 3rd Order time stepping:
1417      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1418      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1419    checkpoint57g_pre
1420    
1421    o make lambda[Theta,Salt]ClimRelax spatially varying
1422      (default remains spatially uniform constant based on tau)
1423    o added new control variables
1424      * init. uVel, vVel, etanN
1425      * lambda[Theta,Salt]ClimRelax
1426    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1427      (suggested by G. Forget)
1428    
1429    checkpoint57f_post
1430    o add parameter "baseTime" = model base time = time at iteration zero
1431      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1432      account for baseTime shift
1433    o move Coriolis arrays from PARAMS.h to GRID.h
1434    checkpoint57f_pre
1435    
1436    o mnc-ifying the seaice package
1437    o introduced an alternative length scale calculation for use in the limiting
1438      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1439    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1440    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1441      as well as grad(vort3).  Made it compatible with both approximate form
1442      for the cubed sphere and full form of these gradients.  Added flag
1443      useFullLeith to select between approximate and full form.  
1444    o add "d0" in getcon.F to reduce differences between compilers/platforms
1445      update output.txt of exp. fizhi-gridalt-hs
1446    o change port_rand funtion to allow to set the seed.
1447    o fix obscure MNC bug involving conversion between reals and integers
1448      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1449        new version is now more standards-compliant
1450    o adjoint-related modifications
1451      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1452      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1453      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1454    
1455    checkpoint57e_post
1456    o Adding eddy stress controls a la Ferreira et al.
1457    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1458    
1459    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1460      update output.txt of exp. fizhi-gridalt-hs
1461    o add more "Z" dimensions and associated coordinate vars to MNC
1462    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1463    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1464      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1465      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1466      months and years.  Requires pkg/cal.
1467    o diagnostics: add pickup functionality
1468      - off by default for backwards compatibility
1469      - current version only uses MDSIO -- MNC will be added
1470    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1471    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1472    
1473    checkpoint57d_post
1474    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1475    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1476      output from the diagnostics package
1477    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1478    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1479      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1480    o add coordinate variables to the MNC output from the diagnostics package
1481    o change MNC-flags default value: true when useMNC=TRUE
1482    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1483      the ability (off by default) to read the grid information using MNC
1484    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1485    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1486    o do snap-shot diagnostics at the middle of the time-interval (instead of
1487      at the end).
1488    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1489      new test for AIM with thSIce + slab-ocean
1490    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1491    o move state variable diagnostics to the beginning of the time step ;
1492      (note: still needs some work specially for snap-shot diagnostics)
1493      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1494    
1495    checkpoint57c_post
1496    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1497    o generate new output.txt files on faulks with g77 & the new -ieee option
1498    checkpoint57c_pre
1499    
1500    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1501      update output.txt of exp. global_ocean.90x40x15
1502    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1503      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1504    o add saltFlux(+File) forcing capability with periodicExternalForcing
1505    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1506    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1507    o improvements for the MNC output from DIAGNOSTICS:
1508      - correct handling of the unlimitied dimension
1509      - all dims now have associated coordinate variables
1510      - variables located at U, V, and Corner ("Z") points are now written
1511        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1512        *all* data points are output
1513    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1514    o added pkg/seaice/seaice_monitor.F
1515    o mdsio_readfield.F can now read files visible only to master MPI process.
1516    o pkg/seaice: some test code for ice-modified ocean stress
1517    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1518      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1519      spurious negative numbers for precipitation and humidity.  Will cause
1520      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1521    o pkg/ctrl/
1522      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1523        May be enabled via doPackDiag
1524      *  introduce z-scaling of
1525         + gradient (doZscalePack) and
1526         + control (doZscaleUnpack)
1527    o pkg/mdsio/
1528      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1529      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1530    
1531    checkpoint57b_post
1532    o simplify options in diagnostics_fill arguments (remove weird combinations)
1533    o fix MNC coordinate variables so that they now contain per-face index
1534      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1535      general, EXCH2 grids are only aligned to a "local" coordinate system
1536    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1537    o Implement instantaneous output within pkg diagnostics:
1538      setting a negative frequency in data.diagnostics produces
1539     "snap-shot" output (as opposed to time-average if freq > 0)
1540    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1541      NOTE: change ptracer diagnostics name: use 2 characters to work with
1542            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1543    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1544      becomes the coordinate variable for the 'T' dimension
1545    o add CF-style coordinate variables to MNC
1546      - just a first cut:  numbers are meaningless on the cubesphere and
1547        missing along the T axis but otherwise it works!
1548    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1549    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1550    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1551      this is based directly on what the model compute, so that the content of
1552      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1553    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1554    o clean up build options files for SunOS, in particular
1555      - remove -traditional from xmakedepend
1556      - change -xarch=v9 to -xarch=native for f77
1557      - restore use of make (not gmake)
1558      - add CC=gcc if using g77
1559    o changes per discussion of AM, JMC, & EH3 today:
1560      - move redundant "grid" variables out of "state" -- in preparation of
1561        creating proper CF-style coordinate variables and in recognition
1562        that any/all grid variables can be easily copied (eg. w/NCO) from
1563        the grid files into any of the other NetCDF files
1564      - *always* output grid variables with MDSIO (this will eventually be
1565        changed)
1566      - output MNC grid file if useMNC is true
1567    o every instance of _END_MASTER() has been found and replaced with
1568      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1569      preprocessors
1570    o re-arrange diagnostics pkg initialisation:
1571     - allow each package to extend the available diagnostics list
1572     - add some checking and fix small problems (multi-threaded, ...)
1573     - new S/R diagnostics_fill (replace fill_diagnostics):
1574       look through the short list of active diag. (instead of the long list)
1575       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1576    
1577    checkpoint57a_post
1578    o this set of changes restores TAMC compatibility
1579      tested for global_ocean.90x40x15 adjoint on trough
1580      (what a pain)
1581    
1582    checkpoint57a_pre
1583    o some modifs in tools/build_options for sunos
1584    o call ctrl_pack for ctrl at end for optimcycle=0
1585    
1586    checkpoint57
1587    o add horizontal bi-harmonic viscosity for vertical velocity
1588      - new parameter viscA4W (defaults to viscA4)
1589      - affects only non-hydrostatic code
1590      - to be done: no-slip lateral boundary conditions
1591    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1592    o implement Implicit Vertical advection for pTracers
1593    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1594      (implemented also for implicit vertical diffusion & advection)
1595    o OBCS: extend application of tracer open boundary conditions
1596      to a strip beyond the boundary of width Olx/Oly
1597    o add call monitor to TAF set of required calls (flow directives)
1598      and include in natl_box_adjoint
1599    o untangle a few ifdefs related to cost, ctrl, autodiff
1600      untangel a few ALLOW_ECCO_OPTIMIZATION
1601    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1602      (theta2, salt2 in ecco_cost_weights)
1603    
1604    checkpoint56c_post
1605    o OBCS as control variables
1606      - update ctrl_ad_diff.list, obcs_ad_diff.list
1607      - remove balance of obcs controls from default
1608      - fix index bug nobcs in ctrl_init
1609      - fix dummy fields filen in ctrl_pack
1610      - add dummy weights for obcs
1611    o lsopt: comment out fort.94 output
1612    o optim:
1613      - remove unnecessary header files
1614      - adjusted namelists
1615      - add xerbla.F to Makefile
1616    o exf:
1617      - multiple modifications of exf_check_range
1618      - unit change in exf_init_runoff from [m/year] to [m/s]
1619    o mdsio:
1620      - i/o-vector change debugLevel from debLevA to debLevB
1621    
1622    checkpoint56b_post
1623    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1624      is called from DO_THE_MODEL_IO
1625      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1626      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1627      - clean up PTRACERS_WRITE_TIMEAVE a little
1628    o add another verification experiment that tests both the cfc-pkg and
1629      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1630      reactive tendencies treated inline with regular timestepping
1631    o testreport previously did a lousy job of comparing small numbers, so
1632      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1633      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1634      testreport.
1635    o ptracers_monitor: bug fix for MPI
1636    
1637    checkpoint56a_post
1638    o GCHEM: finish reorganizating the package
1639      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1640        (introduces another 3D-array for each passive tracer, but only if
1641        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1642        gchemTendency is not needed because the timestep is done separately)
1643      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1644      - GCHEM is now---more or less cleanly---separate from PTRACERS
1645      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1646        so clear to me how that should be done in a general way.
1647    o CFC: improve formatting of output in CFC_ATMOS
1648    o PTRACERS:
1649      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1650        that ALL experiments with ptracers enable can be checked. This makes
1651        GCHEM_MONITOR obsolete.
1652      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1653        monitorFreq
1654      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1655    o add PTRACERS (PTR0[1-5]) to testreport output
1656    o exf_check_range:
1657      * default changed to .TRUE.
1658      * will check values for niter0 if debLevA, every timestep if debLevB
1659      * STOP in exf_check_range if 'out of range'
1660      * range chosen generous to allow for potential extema
1661      TBD: a version with stricter range
1662           permitted range would be runtime parameters
1663  o GMredi:  o GMredi:
1664    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1665    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 1668  o GCHEM:
1668    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
1669      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1670    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1671      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1672        this flag is now only visible within GCHEM-pkg routines.
1673      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1674        be replaced by a 3D array that is computed before thermodynamics; for
1675        this, the tracer ID iTracer had to be included into the parameter list
1676        of ptracers_forcing
1677      - set up forward_step to call gchem_forcing, that will replace
1678        gchem_forcing_int in ptracers_forcing
1679      - cleaning up
1680  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
1681    
1682  checkpoint56  checkpoint56

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