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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.914 by dimitri, Thu Nov 29 16:29:12 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 pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
8      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
9    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
10      all experiments pass when compile with un-initilised var. checking option.
11    o added pkg/salt_plume
12    o script to test restart (for now, in MITgcm_contrib/jmc_script)
13    o pkg/seaice: new read/write pickup version.
14      read meta file and write only fields which are needed to restart.
15      ( same logic as main pickup file ; also using pickupStrictlyMatch )
16    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
17    o lab_sea.hb87: modify the domain & update output.hb87.txt :
18      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
19      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
20      process. Fixed here by closing the domain at the Northern boundary.
21    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
22    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
23      a set of consecutive levels in/from a 3-D array.
24    o pkg/ptracers:
25      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
26      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
27    
28    checkpoint59j
29    o in pkgs: dic, obcs, offline, rbcs:
30      standard way to compute coeff. for time interpolation between 2 time reccords
31      which retains full precision (& make results less dependent on compiler).
32      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
33    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
34      packages instead of reading ice cover and wind speed separately
35    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
36     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
37      to allow to compile customized code before the update)
38    o cleaning-up:
39      - fix CPP instruction syntax in pkg/obcs
40      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
41        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
42      - fix some threads issue in IO parts.
43    o pkg/dic:
44      - add tons of "_d 0" (--> much better testreports !)
45       and then update outputs of tutorial_global_oce_biogeo
46    o pkg/mom_fluxform:
47      add a special version of momentum advection intended to conserve momentum
48      next to a bathymetry step or a coastline edge. (default = off = #undef)
49    o new read/write pickup version:
50      - for now, only implemented for main (mdsio) pickup file.
51      - write out only what is needed to restart; merge pickup_nh , pickup_ph
52        and main pickup together.
53      - read meta file; read only what is needed to restart; stop if a field
54        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
55        if it make sense (even if the restart is not perfect).
56      - if no meta file, assume that pickup to read corresponds exactly to
57        a pickup that would currently be written.
58      - read pickup written in the old format (until checkpoint59i) if it
59        recognizes an old meta file (no field-list).
60      - add a meta file in exp. which starts from a pickup: 2 cases:
61        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
62         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
63        b) a meta file describing the content of the associated pickup file
64         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
65    o pkg/mdsio & pkg/rw:
66      - new routine to read a meta file ; new set of routine to read
67        Multiple-fields file (with meta file).
68    o added open boundary conditions capability for seaice
69        HSNOW, HSALT, UICE, and VICE
70    
71    checkpoint59i
72    o adjoint:
73      * fix multiDimAdvection adjoint
74        (partial recomputation problem by TAF for fVerT(:,:,kDown)
75        and comlev1 size definition (maxpass vs. max. number of tracers)
76      * verification/global_ocean.90x45x15 adjoint now tests
77        NLFS and multiDimAdvection using DST3 (=30)
78      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
79    o pkg/kpp: add "_d 0" to real constant (if missing);
80      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
81      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
82    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
83      for internal parameters related to restart process (formerly from PARAMS.h)
84      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
85    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
86      as argument. (only atm2d & obcs write_pickup have not yet been updated)
87    o pkg/monitor:
88      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
89      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
90      - account for deep Atmosphere factor and density factor (anelastic)
91    o added open boundary conditions capability for seaice HEFF and AREA
92    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
93      thermodynamics
94      - requires a little reorganization, which affects the testreport results
95        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
96        so that now the conservative form is tested
97      - add a few comments
98    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
99    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
100    o add new diagnostics to seaice: advective, diffusive fluxes (only for
101      multidim-advection, for scheme 2 they are not filled) and transports,
102      thermodynamic growth rates
103    o change units of EmPmR (inside the code, + within coupling interface)
104      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
105      Affects results @ truncation level (cg2d match) and update output of
106       experiments: lab_sea(6), global_ocean.90x40x15(10),
107      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
108      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
109      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
110      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
111    
112    checkpoint59h
113    o pkg/exf:
114      - improve vectorization by moving if-statement out of loops in
115        exf_mapfields, exf_radiation
116      - exf_bulkformulae.F: introduce 2D fields and vectorize code
117    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
118    o testreport:
119      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
120        monitor & update offline_exf_seaice exp. output.
121      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
122    o pkg/seaice:
123      - bug fix in the evp solver: boundary conditions were affected be
124        masking of zMax/zMin (changes results)
125      - minor bug fix in boundary conditions in seaice_calc_strainrates
126        (changes results for no_slip)
127      - seaice_lsr.F: make interpolation of eta dependent on boundaries
128      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
129      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
130        stress formulation and no-slip boundary conditions
131    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
132      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
133    o pkg/seaice: a first HSALT time stepping equation has been checked in
134    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
135      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
136      without requiring DO-IF statements
137    o pkg/thsice:
138      use continuous power-law function for partition of energy between lateral
139      melting/freezing and thinning/thickening ; old code using step function
140      still available with #undef THSICE_FRACEN_POWERLAW
141      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
142    o testreport: change AD testing : check against results/output_adm.txt
143      using same scripts as for forward test.
144    
145    checkpoint59g
146    o adjoint testing: in preparation for changing testreport:
147      - output format: cost and grad written on separated lines
148      - ad output results in directory "results" (instead of "results_ad")
149    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
150    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
151    o pkg/ecco: allow user defined cost function contributions
152    o testreport:
153      Allow to choose (per experiment) the list of tested output variables
154       and the main variable (used to issue a pass/FAIL ) ;
155      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
156      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
157      Also modify printing of summary:
158       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
159       b) echo the list of tested variables in the individual summary.txt of
160          each experiment.
161    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
162      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
163      (but still depend on the tile decompostion of the domain).
164    o pkg/seaice: change a discretization detail to make the B-grid code
165      "more symmetric". This change is likely to remove all "ridges/leads" that
166      where quasi-aligned with the grid in B-grid solutions. It may also be
167      the solution to the stress coupling issues with the B-grid.
168    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
169      remove .cvsignore from input dir. (since testreport no longer run here).
170    o pkg/thsice:
171     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
172     - fix reshaping of sea-ice just after advection:
173       melt all the ice only if ice-volume is too small.
174     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
175       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
176     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
177    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
178      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
179    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
180      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
181      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
182      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
183      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
184      -> update output.txt
185    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
186     this affects truncation error: -> update output.txt of exp:
187      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
188      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
189    
190    checkpoint59f
191    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
192    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
193      a bounded range (in forward mode)
194    o pkg/ecco, ctrl, autodiff and mom_common:
195     internal parameter controls, completements of implementations
196    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
197    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
198      (not seem any difference in testing results).
199    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
200       at face corners.
201    o pkg/generic_advdiff:
202     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
203      loop range indices for computing vertical advection tendency
204      and do the calculation in the interior only (no overlap) ;
205      for now, only implemented for SOM advection (to save CPU time).
206     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
207    o exch2 adjoint
208      First set of changes:
209      - add exch2 hand-written adjoint templates
210      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
211        This will require cleanup in pkg/autodiff/*.F
212        (changed routines currently kept separate in verif. code/)
213      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
214        that used to hide exch2 or cubed-sphere specific code
215        (commented via 'cph-exch2')
216    o pkg/seaice
217      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
218    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
219       output of global_ocean.cs32x15.thsice .
220    
221    checkpoint59e
222    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
223      for B-grid vector (not yet tested) and C-grid vector (<- only used
224      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
225    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
226      (#ifdef ALLOW_SALT_PLUME)
227    o gather_2d/scatter_2d: removed halo regions
228    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
229      scheme and the corresponding test case (under front_relax dir). For now,
230      only available with Skew-flux form and not yet tested in realistic set-up.
231      adjoint: store directives updated, but gradient checks deteriorated,
232      so maybe GM/Redi adjoint is now broken.
233    o seaice adjoint
234      * add AREA, HEFF, HSNOW as control variable
235        (should not change lab_sea results)
236      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
237    o pkg/seaice:
238      * added computation of saltFlux in seaice_growth;
239        For time being, sea ice salinity is assumed constant
240        contribution of snow flooding to freshening of sea ice is neglected.
241        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
242        defaults to 0.0 in order to maintain backward compatibility.
243        Typical values for SEAICE_salinity are 4 to 10 g/kg.
244      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
245      * added SEAICE_availHeatFrac, which specifies fraction of surface level
246        heat content used to melt or grow ice
247      * commented out cap of HICE: it helps keep ice thinner
248      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
249      * applied OBCS T/S mask to HEFFM sea ice mask
250    
251    checkpoint59d
252    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
253     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
254     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
255    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
256     and change default value of parameter "GM_Small_Number";
257     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
258       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
259       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
260    o pkg/ecco: cost function when applying pkg/smooth to controls
261    o pkg/ctrl: add forcingPrecond run time parameter
262    o pkg/seaice:
263     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
264     - fix bug in metric terms of u-equation in LSR solver (implicit part),
265       changes verification/lab_sea
266     - rearrange implicit part of u-equation in LSR solver to make it easier to
267       read, understand, and debug. This causes changes at the truncation level.
268     - fix (serious) bug in the boundary conditions (sign error in the implicit
269       part) of the LSR solver. Changes all LSR results.
270     - fixed problem with HSNOW initialization to avoid thick snow when AREA
271       is initilized with small values - does not change lab_sea results.
272     - added HsnowFile initialization capability
273    o pkg/smooth: addition to model/src and pkg/ctrl so allow
274     initialization of pkg/smooth and application to control vector
275    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
276    o dependencies: pkg/profiles requires pkg/cal
277    o pkg/profiles:
278     - added option ALLOW_PROFILES_GENERICGRID
279         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
280         that interpolation information (grid points and coefficients) is provided
281         within the netcdf input files.
282         -> sample matlab scripts can be found in MITgcm_contrib/gael
283         that allow you to prepare netcdf input files.
284     - also modified: cleaner include statements, cleaner error print statements,
285       cleaner stops when error, and more tests of the netcdf input files consistency.
286    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
287    o pkg/seaice:
288     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
289       requires a new routine: seaice_diagnostics_fill.F
290     - make sure that seaice does not move if not forced (pressure replacement
291       method, Hibler and Ip, 1995), changes results
292     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
293     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
294       It is turned off by default (=-1.), because it changes the results.
295     - make it possible to read AREA from a file, too.
296    
297    checkpoint59c
298    o add S/R and diagnostics for oceanic mixed-layer depth
299    o move GMRedi call after all vertical mixing schemes (including KPP)
300    o pkg/thsice:
301     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
302      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
303    o pkg/obcs:
304     - bug fix for balance code
305    o pkg/seaice:
306      - allow values of SEAICE_elasticParm > 1
307      - add new parameter SEAICE_evpTauRelax as an alternative
308        to SEAICE_elasticParm
309      - make lsr boundary conditions free slip (by default), changes result
310      - add code for no slip boundary conditions for lsr
311      - set minimum of zeta to zero (and not 4e8) (changes results)
312      - add a cap on AREA after advecting AREA if seaice_growth is not called
313    o change calculation of Visbeck K:
314      - no longer depend on tapering scheme; instead, compute slope (limited
315        by GM_maxSlope). this is equivalent to what was comuted before with
316        clipping or linear tappering.
317      - fix vertical averaging (wrong by 1/2 level)
318      - leave the old version (but will not be maintained) within
319        #ifdef OLD_VISBECK_CALC / #endif
320      - update output of exp. ideal_2D_oce
321    o change error catch in calc_r_star to improve vectorization
322    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
323      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
324    o adjoint:
325      Re-organized adjoint checkpointing according to Matt Mazloff
326      (but with modifs/completions/cleanups)
327      Storing is now bundled into large arrays to optimized I/O
328      (and second step in cleanup of the_main_loop)
329    
330    checkpoint59b
331    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
332      - export/import (between ocean & coupler) fields needed for ocean DIC.
333    o pkg/seaice:
334      - get rid of three more exchanges seaice_calc_viscosities (required
335        different loop boundaries in seaice_lsr and seaice_ocean_stress)
336      - bug fix in seaice_ocean_stress (update of lab_sea required)
337      - reduce loop boundaries to necessary minimum also in seaice_evp
338      - go back to the old way of computing deltaC/Z as the adjoint likes that
339        better
340    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
341      passive tracer to an Age Tracer) + update output.txt
342    o pkg/exf:
343      - implement A-grid / C-grid selection for wind-stress input files.
344      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
345      for now, in exf_bulk_largeyeager04.F only :
346      - change implementation for case where windspeed + 2. components wind-stress
347        are read-in. AND use rhoConstFresh to convert evap.
348    o pkg/seaice:
349      - use correct EXCH_UV for wind-forcing (on A-grid).
350      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
351        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
352    o pkg/exf:
353      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
354      EXF_INTERPOLATION:
355      - merge global_with_exf/code version of exf_interp_read.F
356        to the main code ;
357      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
358        reading the file ; Important: This options needs to be defined to recover
359        previous code.
360        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
361      - no longer loose real*8 precision along the way when using exf_iprec=64.
362    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
363      - change discretisation of evp-solver in order to avoid another exchange
364        (changes lab_sea) and clean up a little
365      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
366        help the adjoint (this also changes the results slightly)
367      - add a few "_d 0" where they had been missing in seaice_evp.F
368      - cleaning up: remove unused seaice_calc_rhs.F
369    o pkg/exf: some cleaning-up:
370      - change various "constants" into runtime parameters
371      - cleaned-up Large&Yeager04 routine which should eventually
372        replace exf_bulkformulae.F (changed names of S/R and CPP)
373        and merged various ALLOW_ATM_WIND options
374     only used with thsice pkg (in thsice_get_exf.F):
375      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
376        which are used when useStabilityFct_overIce=TRUE (= the default)
377      - change default values of ice & snow emissivity and scale downward LW
378        by ice & snow emissivity.
379    o pkg/thsice:
380     fix few little problems, in thsice_calc_thickn.F:
381      - growth vertically (and not laterally) if iceFrac == iceMaskMax
382      - melt only laterally if hIce < hThinIce (as the comments say)
383      and in thsice_extend.F:
384      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
385      - start to form ice as soon as the minimum ice-volume is reachable.
386     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
387      and cpl_aim+ocn
388    o pkg/kpp
389     - move computation of surface related input fields to KPP into a new
390       subroutine kpp_forcing_surf.F
391     - remove wrong (within bi,bj loops) EXCH calls.
392     - little cleaning (add argument myThid in last position, cvs header ...)
393     - for now, fix conservation problem by exchanging KPPviscAz (may not
394       be the best fix)
395    o pkg/seaice
396     - check for inconsistent evp parameter/cpp-flag combination
397     - remove leftover errIO flat for obsolete name list error handling
398    o OpenAD
399     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
400    
401    checkpoint59a
402    o pkg/seaice: some parameter clarifications and a little bit of clean up
403    o pkg/thsice: rename run-time parameters:
404       himin       -> hIceMin
405       himin0      -> hThinIce
406       hihig       -> hThickIce
407       i0          -> i0swFrac
408       transCoef   -> bMeltCoef
409       frac_energy -> fracMelting
410      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
411       with default values (for now) that do not change the results.
412      remove old version of thsice vars advection in pkg/seaice.
413    o in FFIELDS.h:
414      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
415      - make pLoad & sIceLoad always available (but still only used if
416         ATMOSPHERIC_LOADING is #define).
417    o pkg/kpp: replaced _KPP_RL with _RL
418    o bug fixes for vertical diffusivity computations when both KPP and
419        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
420        are no longer updating the vertical diffusivity array
421        (passed as argument) but are (re-) setting those arrays.
422    o pkg/seaice: fix bug in evp solver, while doing that
423      - change (improve?) discretization of stress computations for both
424        cgrid-lsr and evp solver
425      - add a new routine to compute strain rates
426      - the above changes lab_sea results
427      - add no slip conditions for evp solver (off by default), lsr-version
428        may follow
429      - fix exchange for shear at Z-points (does not change lab_sea)
430      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
431        (to force the user to pick a time step since there is not "safe" way
432        of choosing it)
433      - add principal stress diagnostics
434      - rearrange fields for evp a little to avoid having to call a: too many
435        exchanges and b: exchanges for stress trensor components which we do
436        not have.
437      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
438        of evp, complete rewrite for lsr case (latter is does not yet work
439        in all cases)
440    o pkg/kpp: add code to have mixing in shelf ice caverns
441      - add myThid to all kpp routines (long overdue)
442    
443    checkpoint59
444    o pkg/exf:
445      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
446        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
447      - move exf header files from lower_case.h to UPPER_CASE.h ;
448        add missing cvs Header & Name
449      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
450      - add namelist param. selectStressGridPosition, exf_monFreq
451      - retire many _CLIM routines, and remove data.exf_clim
452        + params moved to data.exf
453        + climsst, climsss now handled by exf_set_gen, i.e.
454          climss?period=0 refers to constant field,
455          climss?period=-12 to monthly forcing
456      - split up namelists in data.exf
457    o pkg/seaice:
458      - remove seaice_exch and seaice_exch_uv
459      - remove superfluous exchange of theta
460      - add myThid to seaice_budget_ocean/ice
461      - add new interface for atmospheric wind forcing (C-grid only)
462        + new routine
463        + two new field (taux, tauy for stress over ice)
464        + removed one global field (DAIRN) for C-grid case only
465    o pkg/thsise
466      - 2nd set of modifs for thsice adjoint in conjunction with exf
467    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
468    
469    checkpoint58y_post
470    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
471      vertical diffusivity, similar to that in MOM4; turned on using
472      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
473      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
474    o Added capability for 3D specification of background vertical diffusion
475      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
476      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
477      "data" file that contains the 3D vertical diffusivity coefficients.
478    o ice dynamics (pkg/seaice) with thsice thermodynamics:
479      - add code within pkg thsice to advect & diffuse sea-ice fields
480      similar to (and will replace) what has been added in  seaice_advdiff.F,
481      but: - conserving Mass, Heat & Salt.
482           - better when using non-linear advection scheme (not yet fully tested)
483           - can also be used in atmospheric set-up (for now, only the diffusion).
484    
485    checkpoint58x_post
486    o IO option for global-file compact format:
487      - add options when generating topology (utils/exch2/matlab-topology-generator)
488      - add I/O capability (pkg/mdsio).
489      - adapt utils/matlab/rdmds.m to read this format.
490      for now long-line format not yet supported by pkg/mdsio (& exch2).
491    o shelfice: add a few diagnostics
492    
493    checkpoint58w_post
494    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
495      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
496      (and replace horiVertRatio in NH code).
497      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
498                         and tutorial_plume_on_slope (sensitive to truncation)
499    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
500      directly to drive seaice model (C-grid only)
501    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
502     - reintroduce computation of wind from stress,
503     - compute tau (in exf_bulkformulae.F) from windstress averaged to
504       mass points to avoid tau = 0
505     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
506    o rdmnc.m: make it work with "global" files created with gluemnc
507    o rdmnc.m : some improvements in dealing with singleton dimension
508      (tested on all testreport mnc output files).
509    o genmake2: disable pkg/profiles if netcdf test fails.
510    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
511    o move call to cal_readparms up to make calendar parameters/variable available
512      to all packages
513    
514    checkpoint58v_post
515    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
516      useDynP_inEos_Zc tested.
517    o pkg/exf: changes to properly interpolate/mask/scale initial fields
518    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
519      and portions thereof.  See read_cs.txt for description and examples.
520    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
521      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
522      following the great-circle arc between those 2 points.
523    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
524      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
525    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
526     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
527     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
528     - still needs work (not working with some options ; efficiency to improve)
529       and serious testing.
530     - use this scheme for temperature & salinity in 2 advection test exp.:
531       advect_xy & advect_xz, respectively.
532    
533    checkpoint58u_post
534    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
535    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
536    o testreport: add option "-skipdir" to skip some test.
537    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
538      momentum calculation.
539    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
540    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
541      remove checkpoint.F and the_correction_step.F (no longer used);
542      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
543    o add option (linFSConserveTr) to correct for tracer source/sink due to
544      Linear Free surface
545    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
546    o pkg/thsice: fix reading mnc-pickups
547    
548    checkpoint58t_post
549    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
550    o pkg/mdsio:
551     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
552       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
553       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
554     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
555     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
556       either MDS_READ_FIELD or MDS_WRITE_FIELD )
557     - new S/R (to replace MDSWRITEMETA), which allows to write more
558       informations (variable names, time ...) to meta files.
559     - modify rdmds.m to give back the meta file content.
560    o pkg/diagnostics: change vertical interpolation to be safer, and more
561       flexible (define p-levels to interpolate to in data.diagnostics);
562      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
563       diagnostic pointer.
564    o pkg/seaice: more cleaning up of seaice_growth, added many comments
565    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
566    o fix multi-category seaice:
567     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
568       SEAICE_MULTICATEGORY
569     - fix short wave heat flux
570    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
571       and allow to use EVP solver. Change forward lab_sea: test both EVP
572       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
573    o Initial check-in of lab_sea adjoint
574      (very similar to natl_box_adjoint/code_seaice)
575      * used C-grid and EVP solver
576      * used KPP, GM/Redi
577      * uses inAdExact=.TRUE.
578      * gradient checks fail for both ADM and TLM
579        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
580        f.d. gradients actually seem more problematic than ADM, TLM gradients;
581        issue is related to forward mismatch between g77 an ifort
582    o pkg/seaice: overhaul of thermodynamics
583     - growth.F and groatb.F are replaced by new routine seaice_growth.F
584     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
585     - move a few global fields out of SEAICE.h into seaice_growth.F and
586       make them 2D (FICE/QNETO/ ...)
587     - remove FO (it is the same as QNETO)
588     - introduce a few local fields to avoid modifying external fields such
589       as atemp, etc.
590    
591    checkpoint58s_post
592    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
593      changed exf_set_gen.F so that
594        genperiod=0 means input file is one time-constant field and
595        genperiod=-12 means input file contains 12 monthly means
596    o CG2D: use pre-computed solver main-diagonal (stored in common block);
597      this affects truncation error ; generate new output file for exp. which
598      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
599        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
600        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
601        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
602        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
603        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
604    o start implementation of deep-atmosphere and anelastic formulation
605    o verification: remove 2nd copy of input files and use script "prepare_run"
606      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
607    o mom_common/vecinv/fluxform: fix a few initialisation isssues
608    o profiles: fix for multithreaded case
609    
610    o diagnostics: rename few diags:
611      s/'PRESSURE'/'RCENTER '/g
612      s/'TICE    '/'oceFreez'/g
613      s/'TAUX    '/'oceTAUX '/g
614      s/'TAUY    '/'oceTAUY '/g
615      s/'SWFLUX  '/'oceQsw  '/g
616      s/DIFx/DFxE/g
617      s/DIFy/DFyE/g
618      and add few ocean-forcing diagnostics:
619      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
620    o modifications to pkg/seaice/growth.F and budget.F, which change results of
621      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
622      as actual snow thickness.  It now refers everywhere to effective snow
623      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
624    
625    checkpoint58r_post
626    o modifications to pkg/seaice/growth.F, which change results of
627      lab_sea experiment: fixes pertain to melting snow over open water, to
628      masking EVAP under sea ice, and to using the correct AREA variable for
629      computations of EVAP, PRECIP, HSNOW, and GHEFF
630    o add ability to read bathy, salt, and theta using MNC (off by def)
631    o add flooding algorithm and advection of HSNOW for pkg/seaice;
632      both are turned off by default and do no change any results
633    o seaice advection with pkg/thsice: a step toward the use of non-linear
634      advection scheme, but #ifdef or commented out for now (requires more EXCH).
635    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
636      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
637      in natl_box (affects results @ truncation level: update output.txt)
638    o multi-threading and IO:
639      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
640      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
641        (needed to work with SingleCpuIO): tested in all verif. exp.
642    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
643      affects the results (but none of the verification test uses this scheme).
644    o Adding some pkg/diagnostics capability to pkg/seaice
645      (will certainly be subject to changes)
646    o ctrl: adding new control variables:
647      lwflux, lwdown, evap, snowprecip, apressure, runoff
648    
649    checkpoint58q_post
650    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
651      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
652      high_res_cube configuration by 4% on Columbia.
653    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
654      add (in global_with_exf/code) a version of EXF_INTERP_READ without
655      dynamical allocation (seems to work in multi-threaded).
656    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
657      single CPU io) so that TAF does not have to see EESUPPORT.h
658    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
659    
660    checkpoint58p_post
661    o obcs: stop if obcs is used with useCDscheme = .true.
662    o shelfice:
663     - fix a sign error so that no slip at shelfice interface works
664     - remove stop for combination non-hydrostatic code and shelfice. That does
665       not mean, that the results are correct, but at least they are numerically
666       stable
667    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
668    o added adjoint exch routined for all exch*3d* routines
669      and updated flow directives
670    
671    checkpoint58o_post
672    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
673      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
674    o change controling S/R for writing pickup file (new S/R do_write_pickup)
675      and clean-up reading/writing of pickup files.
676    o fix local version of read/write pickup (NH part) in rotating_tank/code
677    o simplify EXCH interface:
678     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
679     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
680    o added the regrid package
681    o shelfice:
682     - add a simple boundary layer scheme to reduce noise
683     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
684    
685    checkpoint58n_post
686    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
687       local variable (not in common block).
688    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
689      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
690      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
691        to work with SingleCpuIO.
692    o add "_d 0" to real constant of pkg/cfc subroutines ;
693       update exp. cfc_exemple & tutorial_cfc_offline output files.
694    o multi-threading and IO:
695      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
696        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
697      - barrier before and after reading.
698      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
699      - avoid using MDS_WRITELOCAL for LAND pkg output.
700      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
701        common-block variables ; Allows multi-threading with master-thread IO.
702    o change default MAX_NO_THREADS from 32 to 4 ;
703      and stop cleanly when MAX_NO_THREADS is too small.
704    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
705    
706    checkpoint58m_post
707    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
708       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
709    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
710       keep global_ocean.90x40x15 (for AD testing) with former secondary test
711       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
712    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
713        add MITgcm_tutorials (= code + all the tutorials)
714    o ecco, option to compute cost for total ssh (mean+anom)
715    o consistent with addition of ptracer and ssh in pkg/profiles
716    o profiles: adding ptracer and ssh
717    o testreport: change multi-test output-file name
718      (from output.txt.{name} to output.{name}.txt)
719    o profiles: now ok for mutli-tiles case
720    o seaice: add 4 parameters for different advection schemes for area,
721      (effective) seaice thickness, enthalphy, and snow height. Their default
722      is the standard parameter SEAICEadvScheme
723    o calc_gw:
724     - add cosFacU in zonal viscous flux (harmonic.visc.).
725     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
726       of tutorial_plume_on_slope.
727    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
728    o calc_gw: true flux-form, account for horizontal grid spacing.
729      update rotating_tank results, but not plume_on_slope (affected at
730      truncation level, 11 digits).
731    
732    checkpoint58l_post
733    o calc_gw:
734     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
735     - remove side-drag for now (need to fix it); update plume_on_slope results.
736     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
737    o commit code to make SST/SSS weights spatially variable
738      (based on either variable in-situ or variable initial T/S weights)
739    o pkg/ecco:
740      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
741        now based on horizontally varying weights wthetaLev, wsaltLev
742      * cost_averagesflags now returns year indices in addition to day, month
743      * sflux balance is performed on annual basis
744        (sflxumm, sfluxmm2, bal_sfluxmm)
745      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
746        including separate counting and multipliers
747    o pkg/rbcs
748      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
749    
750    checkpoint58k_post
751    o testreport:
752     - always build in dir. "build" (if not there, mkdir build instead of building
753       & running in input)
754     - run in dir run (if it exists), in build otherwise.
755     - call prepare_run (if input/prepare_run exists)
756     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
757    o pkg/exf modifications to interpolation and rotation routines for more
758       reasonable treatment of North Pole singularity: for tracers North Pole
759       value is set to northernmost zonal-mean value, for zonal velocity it is
760       set to zero, and for meridional velocity it is set to northernmost value.
761    o pkg/exf/exf_check_range.F
762     - add tile index to diagnostics and move stop statement to the very
763       end of the routine.
764    o pkg/diagnostics: (diagnostics_main_init.F)
765      define title of isomorphic variables according to the current config.
766    o pkg/thsice with pkg/seaice dynamics:
767    - fix domain of computation (interior only, required for exf) and do exchanges
768    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
769    o towards a standard way of dealing with multi-threading in MONITOR
770      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
771    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
772       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
773    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
774    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
775    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
776       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
777    o tracer advection:
778     - clean-up and simplify calc_common_factors.F
779     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
780       advection subroutine (but still not used within DST advection S/R)
781    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
782    
783    checkpoint58j_post
784    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
785      from file (collects calls previously in FORWARD_STEP)
786    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
787    o adjoint store dir. adjusted accordingly
788    o genmake2
789      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
790    
791    checkpoint58i_post
792    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
793      on wind stress (SEAICEstressFactor defaults to 1.)
794    o Total number of Timers is finite (<=40): comment out 2 non-essential one
795      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
796    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
797      on CS-grid: no longer loosing mass.
798    o exf & curvilinear-grid: no longer modify longitude xC & xG.
799    o pkg/ggl90: fix sloppy output and fix a bug
800    o pkg/seaice: added SEAICEuseEVPpickup parameter
801      - Set to false in order to start EVP solver with
802        non-EVP pickup files when using SEAICEuseEVP
803      - fix sign error in diffusion in seaice_calc_rhs
804    
805    checkpoint58h_post
806    * Modifications for bottom topography control
807      o replace hFacC by _hFacC at various places
808      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
809      o add non-self-adjoint cg2d_nsa
810      o update autodiff support routines
811      o re-initialise hfac after ctrl_depth_ini
812      o works for 5x5 box, doesnt work for global_ocean.90x40x15
813    * Adding verification for 5x5 box (4-layer) bottom topography control
814    
815    checkpoint58g_post
816    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
817       used for mean seasonal cycle, mean diurnal cycle); add an example
818       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
819    o pkg/ggl90:
820      - add parameter (minimum surface kinetic energy)
821      - fix bug (avoiding division by zero)
822    o couple pkg/thsice to pkg/seaice:
823      - modify advection in seaice to accomodate new scalar fields to be advected
824      - only muliDimAdection scheme work with seaice/thsice
825      - mapping of thsice-variables to seaice-variables, back and forth
826      - does not break the verification experiments, but does not give the
827        desired results either
828    o pkg/seaice
829      - make (default) second order advection a bit less confusing?
830    
831    checkpoint58f_post
832    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
833      to pkg/seaice):
834      - new routines thsice_map_exf and thsice_get_exf provide the interface
835      - add an additional formal parameter to thsice_solve4temp
836    o pkg/exf:
837      - add new fields wspeed, snowprecip (to be able to couple to thsice)
838      - correct Stefan-Boltzmann constant
839      - new parameter for longwave surface emittance
840      - separate some stuff from exf_bulkformulae into new routines  
841        exf_radiation, exf_wind
842      - add new parameters and constants: longwave emissivity for ocean, ice
843        and snow, evaporation parameters over ice
844      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
845        either wind from stress or stress from wind
846    o pkg/thSIce:
847    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
848    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
849       and THSICE_CALC_THICKN
850    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
851    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
852      to make debugging easier.
853    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
854    o pkg/bulk_force:
855      - clean-up comments and parameters ;
856      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
857    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
858      generate new output for test-experiment: aim.5l_cs.thSI
859    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
860      testreport accordingly
861    
862    checkpoint58e_post
863    o SEAICE_CGRID adjoint done
864    o R_STAR adjoint implemented.
865      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
866      * need to sort out init. of h0facc, etc.
867    o Make pkg/profile fully independent of ecco,cost, etc. stuff
868      to be able to use it in pure forward.
869    
870    checkpoint58d_post
871    o upgrade simple test-experiment to tutorial example:
872     step.1: duplicate the experiment and (step.2) will remove the old copy.
873      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
874      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
875      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
876      tutorial_global_oce_biogeo    <- copy of dic_example
877      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
878      tutorial_plume_on_slope       <- copy of plume_on_slope
879      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
880      tutorial_global_oce_optim     <- empty for now (David ?)
881      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
882     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
883    o correct a sign problem in cost_scat.F
884    o obcs and ptracers: fix boundary conditions for advections schemes
885      with larger stencil
886    o thsice adjoint: start
887    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
888      completeness
889    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
890      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
891    o ptracers adjoint:
892      * avoid extensive recomputatations
893      * fix missing re-init. of gptr (missed by TAF)
894    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
895      me to turn off the excessive output to STDOUT that this package produces
896    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
897      and add those terms in Vector-Invariant formulation.
898    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
899      if the control period (xx_hfluxperiod etc) is 0
900    o in profiles pkg, clean routines and fix details
901    o in ecco pkg, reading ssh data:
902      fix problem in case the model does not start at iter0=0
903    o fix mnc-pickup/restart for ptracers
904    o new package prifiles:
905      code to compute profile-based cost by Gael Forget
906      (modifs in ecco, ctrl, autodiff)
907    o Benign bug fix in initialization (spotted by M. Mazloff) of
908      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
909    
910    checkpoint58c_post
911    o adjoint: finish NLFS adjoint and provide reference output in
912      verification/global_ocean.90x40x15/results_ad_nlfs
913    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
914      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
915      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
916      with SEAICE_CGRID defined.
917    o move calendarDumps from "data" to "data.cal" and clean-up the code
918      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
919    o add useEXF & useCAL flags (for now, set in hard-coded way)
920    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
921      (were missing in NH mode, and wrong in quasihydrostatic mode).
922      waiting for Chris updated version of calc_gw to add those CALLs.
923    o fix bug in quasihydrostatic S/R ;
924      add a test for this option: global_ocean.90x40x15.qshyd
925    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
926      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
927    o add on/off flag useOffLine for package OFFLINE
928    o seaice:
929      - modify advection so that it works also on the C-grid
930      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
931        problem in multi-tile runs with C-grid
932      - add flags for clipping ice velocities and/or masking solver forcing
933      - fix drag (ocean on ice) formulation and a bug that caused noise in the
934        C-grid solver
935      - added a few comments to seaice_diffusion.F
936      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
937        are now exclusive)
938      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
939        required re-ordering the code a little:
940       + make DAIRN global variable (defined in SEAICE)
941       + move computation of the viscosities eta and zeta into a new separate
942         routine (because I need to recompute them in seaice_ocean_stress.F)
943    
944    checkpoint58b_post
945    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
946      update output.txt of exp. aim.5l_cs.thSI
947    o various mnc cleanups and improvements:
948      + shrink lookup tables by factor of ~4
949      + better error reporting when running out of lookup space
950      + able to handle longer path/file names (up to 500 chars)
951    o adjoint:
952      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
953      - TBD: "hidden" mom_vecinv recomp. in dynamics
954    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
955     (allow to differentiate between forcing components using new integer flags:
956      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
957     and add new flag to put Dissipation tendency out of Adams-Bashforth.
958    o ecco
959      - enable trend removal from SSH anomaly obs.
960    o adjoint
961      - a fix for PmEpR when #undef EXACT_CONSERV
962      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
963      - try to fix "hidden" recomp. in forward_step for NLFS
964        (NLFS seems broken sometimes after I checked it in)
965    o seaice:
966     - add c-grid version of the dynamic solver:
967       + three new routines that are the c-grid substitute lsr, dynsolver
968         and ostres
969       + put a few fields that were local to dynsolver into global common
970         blocks, so that I can move the computation of stresses etc into
971         seaice_lsr (saves coding but may break the adjoint).
972     - replace more hardwired parameters by runtime parameters
973     - add ice masks that mask the rhs of the implicit solvers where there
974       is no ice (commented out in seaice_dynsolver, because i am not sure
975       if this works properly), eventually this should replace the clipping
976       of ice velocities in seaice_dynsolver to +/-40cm/s.
977    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
978      include it only where its needed
979    o move balancing of fluxes before the call of external_forcing_surf
980    o seaice:
981      - correct units of turning angles (now they are really in degrees)
982      - move computation of GWATX/Y out of main routine into dynsolver
983      - initialize GWATX/Y in seaice_init
984    o Apply mask on Fresh-Water flux (needed for SSH forcing).
985      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
986    o seaice: add runtime flags for turning angles (default to zero)
987    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
988      and trend from exf forcing and ctrl control adjustments
989    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
990      (since checkpoint57x_post)
991    o change the default rotation period to 86164.s = the Earth rotation
992    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
993      and based on a reference stratification. Tested within hs94.cs-32x32x5.
994    o seaice advection: add code for choosing between the default (2nd order
995      central differences) and multiDim advection schemes provided by
996      pkg/generic_advdiff
997    o seaice:
998      - removed all references to SEAICE_GRID.h fields from
999        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1000        (cubed-sphere configuration will change a little)
1001      - grid computations in seaice_init are obsolete now.
1002      - cleaned up code a little so that is easier to read (hopefully).
1003      - added new (better?) discretizations of default advection and diffusion
1004        (turn on with SEAICEuseFluxForm)
1005      - replace 1 in 3d global fields by kSurface in growth.F
1006      
1007    checkpoint58a_post
1008    o seaice:
1009      - bug fix in advect.F
1010    o shelfice:
1011      - separate shelfice load anomaly from pload (breaks with time
1012        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1013        Its default is 0., but it may be computed more cleverly from (unknown)
1014        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1015        done offline. A good approximation of the pressure load anomaly is
1016        necessary to avoid large initial adjustment processes underneath
1017        deep-reaching shelfice.
1018      - small fix in ISOMIP shelfice_thermodynamics
1019      - add more sophisticated thermodynamics of Hellmer (1989), this is
1020        now the default
1021      - give a few constants more intuitive names
1022    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1023      if bulk formulae are used in long integration (especially EmPmR). Turn
1024      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1025      if balancePrintMean, the imbalance that is substracted is printed to
1026      STDOUT.
1027    o fix bug (typo) in obcs_apply_eta.F
1028    o add a new package shelfice which enables us to model the circulation
1029      underneath shelf-ice with draughts of hundreds of meters.
1030     - works
1031     - to do: + include improved thermodynamics
1032              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1033                instead of new field kTopC
1034              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1035                instead of new field R_shelfIce and new code in ini_depth.F
1036                and ini_mask_etc.F?
1037              + adjust vertical mixing schemes?
1038    o seaice pkg:
1039     - add a cpp-flag to include a simple formula for a salinity dependent
1040       freezing point of sea water at the surface
1041     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1042       meridional stresses are now different (and hopefully correct)
1043    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1044       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1045       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1046    o pkg/diagnostics: add options and parameters for regional-statistics
1047       diagnostics ; define regions by reading a region-mask from a file
1048       (might add other options later)
1049    o pkg/bulk_force:
1050     - add option and parameters to use AIM surface-flux formulae.
1051     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1052       others forcing fields (defined in PARM05, parameter file "data") are loaded
1053       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1054     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1055     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1056     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1057       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1058     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1059    
1060    checkpoint58
1061    o add "--embed-source" option to genmake2 which, when the supporting
1062      tools can be compiled (as determined by genmake2) will turn on the
1063      embed_files package which then embeds the entire MITgcm source code
1064      (*.[fFhc] + Makefile) used for the build within the executable
1065      - requested by CNH but off by default
1066      - adds a paltry <9MB to the mitgcmuv executable in most cases
1067      - only writes the output when useEMBEDSRC in eedata is true
1068    o clean up 3-dim. relaxation codes:
1069      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1070      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1071      * Thanks to Tom Haine for testing!
1072    
1073    checkpoint57z_post
1074    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1075      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1076    o fix the pickup behavior for obcs in combination with ptracers
1077    o fix a bug in ptracers_external_fields_load
1078    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1079      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1080    o transfered surface NH pressure to eta field (if exactConserv).
1081    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1082         and update lab_sea output.txt file.
1083    o completing 3-dim. relaxation code: additional term
1084         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1085      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1086      * At compile time, in "EXF_OPTIONS.h" set
1087          #define  ALLOW_CLIMTEMP_RELAXATION
1088          #define  ALLOW_CLIMSALT_RELAXATION
1089      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1090          tauThetaClimRelax3Dim = 15552000.0,
1091          tauSaltClimRelax3Dim  = 15552000.0,
1092      * 3 cases:
1093          1) Use a constant-in-time 3-dim. field
1094          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1095          3) Real-time relax. to time-evolving prescribed field
1096    o Adding Laplacian-type smoothness constraint on
1097      initial and boundary (forcing) controls (ic, bc)
1098      * enable at compile-time via
1099        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1100      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1101      * Absolute scale somewhat unclear so far
1102      * no area weighting was included since no other cost term does so far
1103    
1104    checkpoint57y_post
1105    First step for a NLFS adjoint
1106    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1107    o new init. routines for calc_r_star, calc_surf_dr
1108    o still need to deal with ini_masks_etc
1109    o testreport seemed happy
1110    checkpoint57y_pre
1111    
1112    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1113    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1114    o add new offset feature to offline pkg (plus minor cleanup)
1115    o cfc fixes for final year of integration
1116    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1117      be in GCHEM_OPTIONS).
1118    
1119    checkpoint57x_post
1120    o fix testreport Pb in multiple test experiment.
1121    o cleanup our namelist syntax in verification:
1122      - make it more F95 standards compliant (some work still needed)
1123      - allows the vast majority of our tests to work with gfortran
1124    o Non-Hydrostatic:
1125     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1126     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1127    o Allow to apply AB on T,S rather than on AB(gT,gS):
1128     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1129     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1130       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1131     - need a "clever" read_pickup to restart from the other AB formulation
1132    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1133    o remove some unused variables (reduces number of compiler warnings)
1134    o adjoint
1135      * Disable useVariableViscosity for adjoint for time being
1136        (there are a number of extensive recomputations)
1137      * Initialize certain variables needed for adjoint
1138    
1139    checkpoint57w_post
1140    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1141                 fix the singleCpuIO RS version of MDSWRITEFIELD
1142       and add a WARNING if using globalFiles=T with multi-processors.
1143    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1144      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1145    o tracer advection scheme:
1146      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1147       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1148       was not very convenient).
1149      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1150       (further tests needed for the implicit DST & Flux-Limiter schemes).
1151    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1152      and sRef for convenience, handy, when you want to initialize
1153      ptracers in a large domain with a constant non-zero value. Also,
1154      untangle ptracers_init.F a little.
1155    
1156    checkpoint57v_post
1157    o change dome exp. to use variable viscosity in side-drag terms.
1158    o remove all the files from the cfc_offline test since they are now
1159      incorporated into tutorial_cfc_offline which has been producing
1160      identical results for a few days of testing
1161    o add new parameter: sideDragFactor to enable half-slip-side BC
1162      and change side-drag S/R to use viscosity from mom_calc_visc
1163      (can switch back by setting sideDragFactor=0.); affects results at
1164      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1165       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1166    o vorticity & strain are now computed without masking, to account for
1167      no-slip-side BC in variable viscosity calculation ; mask is applied
1168      anyway later on, before computing advection/coriolis terms.
1169    o modify exp4 to test new obcs support for reading from external files
1170      and for passive tracers
1171    o fix behavior of ptracers_monitor when monitor output is written to a
1172      netcdf-file; still not independent of monitor.F (writes in the same
1173      file).
1174    o change default value of tRef (put a uniform, meaningful value for ocean
1175      & atmos) and initialize sRef (was missing, as Martin mentioned).
1176    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1177      to be proportional to enstrophy dissipation length.  Thus,
1178       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1179      This is now consistent with Smagorinsky and with the manual.
1180    
1181    checkpoint57u_post
1182    o OBCS and PTRACERS: add open boundary support for passive tracers
1183      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1184        OB-values from file; this is not different from the way theta and salinity
1185        are treated
1186      - however, Orlanski-radiation conditions are not supported, and the model
1187        will stop if you use pTracers and Orlanski at the same time.
1188      - beefed up the rountine obcs_external_fields_load: now only those open
1189        boundary values are overwritten with values from files for which there
1190        are really files, otherwise the OB-fields remain untouched. This makes
1191        it possible to use different OBs at different ends of the domain (as
1192        with EXF)
1193    o reduce number of exch calls in shap_filt (s2).
1194    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1195      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1196    
1197    checkpoint57t_post
1198    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1199    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1200      same truncation, independent of the face number: affects affects several
1201      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1202    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1203      note that biharmonic viscosity + no-slip was not tested in any experiment.
1204    o fix bug in non-linear free-surf side-drag ; generate new output for
1205      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1206    o make mnc honor the writeBinaryPrec flag for most kinds of output
1207    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1208    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1209      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1210    o add brackets in multi-terms sum to get same truncation, independent of
1211      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1212      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1213    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1214      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1215      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1216      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1217      Suggested values of viscosity parameters found in mom_calc_visc.
1218      Many new viscosity diagnostics available.
1219    
1220    checkpoint57s_post
1221    o Add clearing-house for viscosity calculations, mom_calc_visc and
1222      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1223      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1224      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1225      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1226      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1227      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1228      ViscAhStrain and viscAhTension are now retired.
1229    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1230    o In response to JMC's bug report, genmake2 now ignores any soft-links
1231      that it finds in the *current* directory when searching for files.
1232      Soft-links found in any other source directories will still work as
1233      they did before.
1234    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1235      a C routine to unlimit the stack size
1236    o mnc-ify pkg/aim snapshot vars
1237    o mnc-ify pkg/land as requested by Daniel
1238    o various changes to mnc including:
1239      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1240      - output can now be grouped so that all files within a group
1241          change the ITER portion of their names in lock-step together
1242      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1243          and works with both EXCH1 and EXCH2 (but needs more testing)
1244      - writing works for all verification test cases w/ g77 on Linux
1245    
1246    checkpoint57r_post
1247    o make MNC variable initialization happen earlier
1248    o add diagnostics for (almost) each term of the momentum Eq.
1249    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1250    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1251    o remove MINIMAL_TAVE_OUTPUT option ;
1252      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1253    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1254      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1255    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1256    o add time-dependent SST, SSS control
1257    o cost terms in ecco/ modularized (new cost_generic.F)
1258    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1259    o new infrastructure for seaice model vs. obs misfits in seaice/
1260      * driver from the_main_loop.F is seaice_cost_driver.F
1261      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1262      * gradient check in Exp. 6a of natl_box_adjoint/
1263    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1264      (see README file)
1265    
1266    checkpoint57q_post
1267    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1268    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1269      - bug was reported by Jean-Michel and Ian Fenty
1270    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1271      update exp. cpl_aim+ocn output.
1272    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1273      Needed for high-res. runs with large global files
1274      to be able to limit tapelev size
1275    o Changed some tests for adjoint:
1276      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1277      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1278      * global_ocean.90x40x15/ back to default 3-level checkpointing
1279    o Modifications to enable scripted COMMON to MODULE conversion
1280      * verification/OpenAD/code/ has necessary scripts and description;
1281      * converts, compiles and runs successfully;
1282    
1283    checkpoint57p_post
1284    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1285    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1286      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1287    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1288    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1289      (was already the case for dissipation with mom_vecinv,
1290       and also the case for grad.PhiHyd when staggered-timeStep)
1291      This will allow to put dissipation out-off the AB time-stepping.
1292     Unfortunately, affects truncation error. Update output of exp. that "fails"
1293      (cg2d matching number) and leave the others for later: front_relax(10),
1294      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1295      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1296    
1297    checkpoint57o_post
1298    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1299      (2) its ready to be documented during the 20050801 DocFest
1300    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1301      for ideal_2D_oce and lab_sea on linux_ia32_g77
1302    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1303      in global1x1_tot/code_seaice_adj to access indices 32, 33
1304      (worth another tag)
1305    
1306    checkpoint57n_post
1307    o adding precip control xx_precip 32
1308    o adding swflux control xx_swflux 33
1309    o Replacing 10 forcing penalty cost routines by 1 generic.
1310    o Implementing partitioning in time-mean and variable adjustment
1311      for atmos. state.
1312    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1313    o in natl_box_adjoint:
1314      * updated exp 1 to 10
1315        (but does not have time-mean vs. variable split results yet)
1316    o updated global1x1/*_seaice_adj/
1317      to incorporate latest changes
1318    o enable useSingleCpuIO for mdsio vector routines
1319      (applies in particular to tapelev I/O)
1320    o removed inefficient K-loop in all active_file*control*.F
1321    
1322    checkpoint57m_post
1323    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1324      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1325    o pkg/exch2: filling of face-corner halo regions is optional
1326      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1327    
1328    checkpoint57l_post
1329     tag before updating tutorials (pre-release-2)
1330    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1331       for output and interpolation of input fields onto model grid)
1332    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1333       Affects results of exp. rotating_tank ; update output.txt.
1334    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1335          and taking the square quantity and/or using a fraction-weight field.
1336    o fix aim_diagnostics_init.F mate numbers.
1337    o add mnc output capability to diagnostics/diagstat and update
1338      our cvsignore files for the ACSII output generated
1339    
1340    checkpoint57k_post
1341    o lab_sea now uses diagnostics package and provides a suite of
1342      new EXF diagnostics output.
1343    
1344    checkpoint57j_post
1345    o exf
1346      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1347        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1348        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1349      * extended diagnostics output
1350        - now includes all EXF variables
1351        - hs, hl moved to common block
1352        - separate S/R for diagnostics, called after ctrl vector is added
1353        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1354        - EXFqnet contains true Qnet (i.e. includes qsw)
1355      * updated verif. lab_sea, global_with_exf
1356      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1357        to ensure that diagnostics sees a true EXFqnet
1358    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1359    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1360      several times with different frequencies.
1361    o mnc-ify the thsice package as requested by Daniel Enderton
1362      - the monitor--MNC output needs work
1363      - many attributes need to be added (most are currently blank)
1364    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1365      - many attributes need to be added (most are currently blank)
1366    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1367    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1368    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1369      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1370         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1371    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1372     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1373    
1374    checkpoint57i_post
1375    o Diagnostics package was changed: diagnostic allocation is now deactivated
1376      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1377    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1378      add 1rst Order upwind vertical Shear.
1379    o add a quick fix for A/B checkpointing in OFFLINE mode
1380    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1381      end-run around the C/Fortran linking horror in eesup/src/timers.F
1382    o added pkg/runclock: allows user to terminate run based on wall clock
1383    o added non-hydrostatic scaling parameter: nh_am2
1384    o pkg/my82: futile attempt to make results compiler-independent by adding
1385      some "_d 0", etc. no effect.
1386    o for mnc output, fill the 'T' coordinate var with myTime and create a
1387      separate 'iter' variable for iteration count
1388    o pkg/diagnostics:
1389      add new capability: output of Global/Regional & per-level statistics ;
1390      tested against monitor output (including land & thSIce) on various exp.
1391    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1392    
1393    checkpoint57h_done
1394      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1395      data.diagnostics, data.gchem, data.ptracers) is done.
1396    
1397    o pkg/diagnostics: prepare for Global/Regional statistics.
1398      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1399    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1400      and rename it: DIFFERENT_MULTIPLE
1401    
1402    checkpoint57h_post
1403    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1404    o pkg/diagnostics: change output frequency, now in seconds (instead
1405      of Nb of iterations). This requires to change data.diagnostics.
1406    checkpoint57h_pre
1407    
1408    o in mnc, let the user create the output dir if both mnc_outdir_date
1409      and mnc_outdir_num are false
1410    o add fflags() to pkg/diagnostics which allows one to specify, on a
1411      per-file basis, the file precision [default behavior is unchanged]
1412    o added diagnostics to pkg/kpp, including computation of mixed layer
1413      depth based on a temperature/density criterion
1414    o updated verification/natl_box to test the new pkg/kpp diagnostics
1415    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1416    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1417    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1418      not mnc -- this mistake was found by JMC and is now corrected
1419    
1420    checkpoint57g_post
1421    o add Adams-Bashforth 3rd Order time stepping:
1422      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1423      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1424    checkpoint57g_pre
1425    
1426    o make lambda[Theta,Salt]ClimRelax spatially varying
1427      (default remains spatially uniform constant based on tau)
1428    o added new control variables
1429      * init. uVel, vVel, etanN
1430      * lambda[Theta,Salt]ClimRelax
1431    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1432      (suggested by G. Forget)
1433    
1434    checkpoint57f_post
1435    o add parameter "baseTime" = model base time = time at iteration zero
1436      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1437      account for baseTime shift
1438    o move Coriolis arrays from PARAMS.h to GRID.h
1439    checkpoint57f_pre
1440    
1441    o mnc-ifying the seaice package
1442    o introduced an alternative length scale calculation for use in the limiting
1443      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1444    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1445    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1446      as well as grad(vort3).  Made it compatible with both approximate form
1447      for the cubed sphere and full form of these gradients.  Added flag
1448      useFullLeith to select between approximate and full form.  
1449    o add "d0" in getcon.F to reduce differences between compilers/platforms
1450      update output.txt of exp. fizhi-gridalt-hs
1451    o change port_rand funtion to allow to set the seed.
1452    o fix obscure MNC bug involving conversion between reals and integers
1453      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1454        new version is now more standards-compliant
1455    o adjoint-related modifications
1456      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1457      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1458      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1459    
1460    checkpoint57e_post
1461    o Adding eddy stress controls a la Ferreira et al.
1462    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1463    
1464    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1465      update output.txt of exp. fizhi-gridalt-hs
1466    o add more "Z" dimensions and associated coordinate vars to MNC
1467    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1468    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1469      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1470      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1471      months and years.  Requires pkg/cal.
1472    o diagnostics: add pickup functionality
1473      - off by default for backwards compatibility
1474      - current version only uses MDSIO -- MNC will be added
1475    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1476    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1477    
1478    checkpoint57d_post
1479    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1480    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1481      output from the diagnostics package
1482    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1483    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1484      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1485    o add coordinate variables to the MNC output from the diagnostics package
1486    o change MNC-flags default value: true when useMNC=TRUE
1487    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1488      the ability (off by default) to read the grid information using MNC
1489    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1490    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1491    o do snap-shot diagnostics at the middle of the time-interval (instead of
1492      at the end).
1493    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1494      new test for AIM with thSIce + slab-ocean
1495    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1496    o move state variable diagnostics to the beginning of the time step ;
1497      (note: still needs some work specially for snap-shot diagnostics)
1498      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1499    
1500    checkpoint57c_post
1501    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1502    o generate new output.txt files on faulks with g77 & the new -ieee option
1503    checkpoint57c_pre
1504    
1505    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1506      update output.txt of exp. global_ocean.90x40x15
1507    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1508      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1509    o add saltFlux(+File) forcing capability with periodicExternalForcing
1510    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1511    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1512    o improvements for the MNC output from DIAGNOSTICS:
1513      - correct handling of the unlimitied dimension
1514      - all dims now have associated coordinate variables
1515      - variables located at U, V, and Corner ("Z") points are now written
1516        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1517        *all* data points are output
1518    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1519    o added pkg/seaice/seaice_monitor.F
1520    o mdsio_readfield.F can now read files visible only to master MPI process.
1521    o pkg/seaice: some test code for ice-modified ocean stress
1522    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1523      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1524      spurious negative numbers for precipitation and humidity.  Will cause
1525      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1526    o pkg/ctrl/
1527      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1528        May be enabled via doPackDiag
1529      *  introduce z-scaling of
1530         + gradient (doZscalePack) and
1531         + control (doZscaleUnpack)
1532    o pkg/mdsio/
1533      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1534      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1535    
1536    checkpoint57b_post
1537    o simplify options in diagnostics_fill arguments (remove weird combinations)
1538    o fix MNC coordinate variables so that they now contain per-face index
1539      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1540      general, EXCH2 grids are only aligned to a "local" coordinate system
1541    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1542    o Implement instantaneous output within pkg diagnostics:
1543      setting a negative frequency in data.diagnostics produces
1544     "snap-shot" output (as opposed to time-average if freq > 0)
1545    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1546      NOTE: change ptracer diagnostics name: use 2 characters to work with
1547            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1548    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1549      becomes the coordinate variable for the 'T' dimension
1550    o add CF-style coordinate variables to MNC
1551      - just a first cut:  numbers are meaningless on the cubesphere and
1552        missing along the T axis but otherwise it works!
1553    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1554    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1555    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1556      this is based directly on what the model compute, so that the content of
1557      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1558    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1559    o clean up build options files for SunOS, in particular
1560      - remove -traditional from xmakedepend
1561      - change -xarch=v9 to -xarch=native for f77
1562      - restore use of make (not gmake)
1563      - add CC=gcc if using g77
1564    o changes per discussion of AM, JMC, & EH3 today:
1565      - move redundant "grid" variables out of "state" -- in preparation of
1566        creating proper CF-style coordinate variables and in recognition
1567        that any/all grid variables can be easily copied (eg. w/NCO) from
1568        the grid files into any of the other NetCDF files
1569      - *always* output grid variables with MDSIO (this will eventually be
1570        changed)
1571      - output MNC grid file if useMNC is true
1572    o every instance of _END_MASTER() has been found and replaced with
1573      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1574      preprocessors
1575    o re-arrange diagnostics pkg initialisation:
1576     - allow each package to extend the available diagnostics list
1577     - add some checking and fix small problems (multi-threaded, ...)
1578     - new S/R diagnostics_fill (replace fill_diagnostics):
1579       look through the short list of active diag. (instead of the long list)
1580       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1581    
1582    checkpoint57a_post
1583    o this set of changes restores TAMC compatibility
1584      tested for global_ocean.90x40x15 adjoint on trough
1585      (what a pain)
1586    
1587    checkpoint57a_pre
1588    o some modifs in tools/build_options for sunos
1589    o call ctrl_pack for ctrl at end for optimcycle=0
1590    
1591    checkpoint57
1592    o add horizontal bi-harmonic viscosity for vertical velocity
1593      - new parameter viscA4W (defaults to viscA4)
1594      - affects only non-hydrostatic code
1595      - to be done: no-slip lateral boundary conditions
1596    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1597    o implement Implicit Vertical advection for pTracers
1598    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1599      (implemented also for implicit vertical diffusion & advection)
1600    o OBCS: extend application of tracer open boundary conditions
1601      to a strip beyond the boundary of width Olx/Oly
1602    o add call monitor to TAF set of required calls (flow directives)
1603      and include in natl_box_adjoint
1604    o untangle a few ifdefs related to cost, ctrl, autodiff
1605      untangel a few ALLOW_ECCO_OPTIMIZATION
1606    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1607      (theta2, salt2 in ecco_cost_weights)
1608    
1609    checkpoint56c_post
1610    o OBCS as control variables
1611      - update ctrl_ad_diff.list, obcs_ad_diff.list
1612      - remove balance of obcs controls from default
1613      - fix index bug nobcs in ctrl_init
1614      - fix dummy fields filen in ctrl_pack
1615      - add dummy weights for obcs
1616    o lsopt: comment out fort.94 output
1617    o optim:
1618      - remove unnecessary header files
1619      - adjusted namelists
1620      - add xerbla.F to Makefile
1621    o exf:
1622      - multiple modifications of exf_check_range
1623      - unit change in exf_init_runoff from [m/year] to [m/s]
1624    o mdsio:
1625      - i/o-vector change debugLevel from debLevA to debLevB
1626    
1627    checkpoint56b_post
1628    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1629      is called from DO_THE_MODEL_IO
1630      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1631      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1632      - clean up PTRACERS_WRITE_TIMEAVE a little
1633    o add another verification experiment that tests both the cfc-pkg and
1634      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1635      reactive tendencies treated inline with regular timestepping
1636    o testreport previously did a lousy job of comparing small numbers, so
1637      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1638      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1639      testreport.
1640    o ptracers_monitor: bug fix for MPI
1641    
1642    checkpoint56a_post
1643    o GCHEM: finish reorganizating the package
1644      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1645        (introduces another 3D-array for each passive tracer, but only if
1646        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1647        gchemTendency is not needed because the timestep is done separately)
1648      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1649      - GCHEM is now---more or less cleanly---separate from PTRACERS
1650      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1651        so clear to me how that should be done in a general way.
1652    o CFC: improve formatting of output in CFC_ATMOS
1653    o PTRACERS:
1654      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1655        that ALL experiments with ptracers enable can be checked. This makes
1656        GCHEM_MONITOR obsolete.
1657      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1658        monitorFreq
1659      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1660    o add PTRACERS (PTR0[1-5]) to testreport output
1661    o exf_check_range:
1662      * default changed to .TRUE.
1663      * will check values for niter0 if debLevA, every timestep if debLevB
1664      * STOP in exf_check_range if 'out of range'
1665      * range chosen generous to allow for potential extema
1666      TBD: a version with stricter range
1667           permitted range would be runtime parameters
1668  o GMredi:  o GMredi:
1669    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1670    - 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 1673  o GCHEM:
1673    - 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
1674      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1675    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1676      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1677        this flag is now only visible within GCHEM-pkg routines.
1678      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1679        be replaced by a 3D array that is computed before thermodynamics; for
1680        this, the tracer ID iTracer had to be included into the parameter list
1681        of ptracers_forcing
1682      - set up forward_step to call gchem_forcing, that will replace
1683        gchem_forcing_int in ptracers_forcing
1684      - cleaning up
1685  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
1686    
1687  checkpoint56  checkpoint56

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