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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.915 by jmc, Fri Nov 30 21:13:20 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    checkpoint59k
8    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
9      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
10    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
11      all experiments pass when compile with un-initilised var. checking option.
12    o added pkg/salt_plume
13    o script to test restart (for now, in MITgcm_contrib/jmc_script)
14    o pkg/seaice: new read/write pickup version.
15      read meta file and write only fields which are needed to restart.
16      ( same logic as main pickup file ; also using pickupStrictlyMatch )
17    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
18    o lab_sea.hb87: modify the domain & update output.hb87.txt :
19      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
20      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
21      process. Fixed here by closing the domain at the Northern boundary.
22    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
23    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
24      a set of consecutive levels in/from a 3-D array.
25    o pkg/ptracers:
26      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
27      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
28    
29    checkpoint59j
30    o in pkgs: dic, obcs, offline, rbcs:
31      standard way to compute coeff. for time interpolation between 2 time reccords
32      which retains full precision (& make results less dependent on compiler).
33      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
34    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
35      packages instead of reading ice cover and wind speed separately
36    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
37     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
38      to allow to compile customized code before the update)
39    o cleaning-up:
40      - fix CPP instruction syntax in pkg/obcs
41      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
42        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
43      - fix some threads issue in IO parts.
44    o pkg/dic:
45      - add tons of "_d 0" (--> much better testreports !)
46       and then update outputs of tutorial_global_oce_biogeo
47    o pkg/mom_fluxform:
48      add a special version of momentum advection intended to conserve momentum
49      next to a bathymetry step or a coastline edge. (default = off = #undef)
50    o new read/write pickup version:
51      - for now, only implemented for main (mdsio) pickup file.
52      - write out only what is needed to restart; merge pickup_nh , pickup_ph
53        and main pickup together.
54      - read meta file; read only what is needed to restart; stop if a field
55        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
56        if it make sense (even if the restart is not perfect).
57      - if no meta file, assume that pickup to read corresponds exactly to
58        a pickup that would currently be written.
59      - read pickup written in the old format (until checkpoint59i) if it
60        recognizes an old meta file (no field-list).
61      - add a meta file in exp. which starts from a pickup: 2 cases:
62        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
63         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
64        b) a meta file describing the content of the associated pickup file
65         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
66    o pkg/mdsio & pkg/rw:
67      - new routine to read a meta file ; new set of routine to read
68        Multiple-fields file (with meta file).
69    o added open boundary conditions capability for seaice
70        HSNOW, HSALT, UICE, and VICE
71    
72    checkpoint59i
73    o adjoint:
74      * fix multiDimAdvection adjoint
75        (partial recomputation problem by TAF for fVerT(:,:,kDown)
76        and comlev1 size definition (maxpass vs. max. number of tracers)
77      * verification/global_ocean.90x45x15 adjoint now tests
78        NLFS and multiDimAdvection using DST3 (=30)
79      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
80    o pkg/kpp: add "_d 0" to real constant (if missing);
81      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
82      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
83    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
84      for internal parameters related to restart process (formerly from PARAMS.h)
85      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
86    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
87      as argument. (only atm2d & obcs write_pickup have not yet been updated)
88    o pkg/monitor:
89      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
90      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
91      - account for deep Atmosphere factor and density factor (anelastic)
92    o added open boundary conditions capability for seaice HEFF and AREA
93    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
94      thermodynamics
95      - requires a little reorganization, which affects the testreport results
96        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
97        so that now the conservative form is tested
98      - add a few comments
99    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
100    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
101    o add new diagnostics to seaice: advective, diffusive fluxes (only for
102      multidim-advection, for scheme 2 they are not filled) and transports,
103      thermodynamic growth rates
104    o change units of EmPmR (inside the code, + within coupling interface)
105      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
106      Affects results @ truncation level (cg2d match) and update output of
107       experiments: lab_sea(6), global_ocean.90x40x15(10),
108      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
109      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
110      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
111      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
112    
113    checkpoint59h
114    o pkg/exf:
115      - improve vectorization by moving if-statement out of loops in
116        exf_mapfields, exf_radiation
117      - exf_bulkformulae.F: introduce 2D fields and vectorize code
118    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
119    o testreport:
120      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
121        monitor & update offline_exf_seaice exp. output.
122      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
123    o pkg/seaice:
124      - bug fix in the evp solver: boundary conditions were affected be
125        masking of zMax/zMin (changes results)
126      - minor bug fix in boundary conditions in seaice_calc_strainrates
127        (changes results for no_slip)
128      - seaice_lsr.F: make interpolation of eta dependent on boundaries
129      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
130      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
131        stress formulation and no-slip boundary conditions
132    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
133      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
134    o pkg/seaice: a first HSALT time stepping equation has been checked in
135    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
136      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
137      without requiring DO-IF statements
138    o pkg/thsice:
139      use continuous power-law function for partition of energy between lateral
140      melting/freezing and thinning/thickening ; old code using step function
141      still available with #undef THSICE_FRACEN_POWERLAW
142      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
143    o testreport: change AD testing : check against results/output_adm.txt
144      using same scripts as for forward test.
145    
146    checkpoint59g
147    o adjoint testing: in preparation for changing testreport:
148      - output format: cost and grad written on separated lines
149      - ad output results in directory "results" (instead of "results_ad")
150    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
151    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
152    o pkg/ecco: allow user defined cost function contributions
153    o testreport:
154      Allow to choose (per experiment) the list of tested output variables
155       and the main variable (used to issue a pass/FAIL ) ;
156      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
157      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
158      Also modify printing of summary:
159       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
160       b) echo the list of tested variables in the individual summary.txt of
161          each experiment.
162    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
163      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
164      (but still depend on the tile decompostion of the domain).
165    o pkg/seaice: change a discretization detail to make the B-grid code
166      "more symmetric". This change is likely to remove all "ridges/leads" that
167      where quasi-aligned with the grid in B-grid solutions. It may also be
168      the solution to the stress coupling issues with the B-grid.
169    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
170      remove .cvsignore from input dir. (since testreport no longer run here).
171    o pkg/thsice:
172     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
173     - fix reshaping of sea-ice just after advection:
174       melt all the ice only if ice-volume is too small.
175     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
176       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
177     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
178    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
179      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
180    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
181      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
182      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
183      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
184      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
185      -> update output.txt
186    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
187     this affects truncation error: -> update output.txt of exp:
188      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
189      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
190    
191    checkpoint59f
192    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
193    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
194      a bounded range (in forward mode)
195    o pkg/ecco, ctrl, autodiff and mom_common:
196     internal parameter controls, completements of implementations
197    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
198    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
199      (not seem any difference in testing results).
200    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
201       at face corners.
202    o pkg/generic_advdiff:
203     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
204      loop range indices for computing vertical advection tendency
205      and do the calculation in the interior only (no overlap) ;
206      for now, only implemented for SOM advection (to save CPU time).
207     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
208    o exch2 adjoint
209      First set of changes:
210      - add exch2 hand-written adjoint templates
211      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
212        This will require cleanup in pkg/autodiff/*.F
213        (changed routines currently kept separate in verif. code/)
214      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
215        that used to hide exch2 or cubed-sphere specific code
216        (commented via 'cph-exch2')
217    o pkg/seaice
218      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
219    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
220       output of global_ocean.cs32x15.thsice .
221    
222    checkpoint59e
223    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
224      for B-grid vector (not yet tested) and C-grid vector (<- only used
225      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
226    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
227      (#ifdef ALLOW_SALT_PLUME)
228    o gather_2d/scatter_2d: removed halo regions
229    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
230      scheme and the corresponding test case (under front_relax dir). For now,
231      only available with Skew-flux form and not yet tested in realistic set-up.
232      adjoint: store directives updated, but gradient checks deteriorated,
233      so maybe GM/Redi adjoint is now broken.
234    o seaice adjoint
235      * add AREA, HEFF, HSNOW as control variable
236        (should not change lab_sea results)
237      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
238    o pkg/seaice:
239      * added computation of saltFlux in seaice_growth;
240        For time being, sea ice salinity is assumed constant
241        contribution of snow flooding to freshening of sea ice is neglected.
242        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
243        defaults to 0.0 in order to maintain backward compatibility.
244        Typical values for SEAICE_salinity are 4 to 10 g/kg.
245      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
246      * added SEAICE_availHeatFrac, which specifies fraction of surface level
247        heat content used to melt or grow ice
248      * commented out cap of HICE: it helps keep ice thinner
249      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
250      * applied OBCS T/S mask to HEFFM sea ice mask
251    
252    checkpoint59d
253    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
254     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
255     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
256    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
257     and change default value of parameter "GM_Small_Number";
258     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
259       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
260       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
261    o pkg/ecco: cost function when applying pkg/smooth to controls
262    o pkg/ctrl: add forcingPrecond run time parameter
263    o pkg/seaice:
264     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
265     - fix bug in metric terms of u-equation in LSR solver (implicit part),
266       changes verification/lab_sea
267     - rearrange implicit part of u-equation in LSR solver to make it easier to
268       read, understand, and debug. This causes changes at the truncation level.
269     - fix (serious) bug in the boundary conditions (sign error in the implicit
270       part) of the LSR solver. Changes all LSR results.
271     - fixed problem with HSNOW initialization to avoid thick snow when AREA
272       is initilized with small values - does not change lab_sea results.
273     - added HsnowFile initialization capability
274    o pkg/smooth: addition to model/src and pkg/ctrl so allow
275     initialization of pkg/smooth and application to control vector
276    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
277    o dependencies: pkg/profiles requires pkg/cal
278    o pkg/profiles:
279     - added option ALLOW_PROFILES_GENERICGRID
280         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
281         that interpolation information (grid points and coefficients) is provided
282         within the netcdf input files.
283         -> sample matlab scripts can be found in MITgcm_contrib/gael
284         that allow you to prepare netcdf input files.
285     - also modified: cleaner include statements, cleaner error print statements,
286       cleaner stops when error, and more tests of the netcdf input files consistency.
287    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
288    o pkg/seaice:
289     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
290       requires a new routine: seaice_diagnostics_fill.F
291     - make sure that seaice does not move if not forced (pressure replacement
292       method, Hibler and Ip, 1995), changes results
293     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
294     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
295       It is turned off by default (=-1.), because it changes the results.
296     - make it possible to read AREA from a file, too.
297    
298    checkpoint59c
299    o add S/R and diagnostics for oceanic mixed-layer depth
300    o move GMRedi call after all vertical mixing schemes (including KPP)
301    o pkg/thsice:
302     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
303      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
304    o pkg/obcs:
305     - bug fix for balance code
306    o pkg/seaice:
307      - allow values of SEAICE_elasticParm > 1
308      - add new parameter SEAICE_evpTauRelax as an alternative
309        to SEAICE_elasticParm
310      - make lsr boundary conditions free slip (by default), changes result
311      - add code for no slip boundary conditions for lsr
312      - set minimum of zeta to zero (and not 4e8) (changes results)
313      - add a cap on AREA after advecting AREA if seaice_growth is not called
314    o change calculation of Visbeck K:
315      - no longer depend on tapering scheme; instead, compute slope (limited
316        by GM_maxSlope). this is equivalent to what was comuted before with
317        clipping or linear tappering.
318      - fix vertical averaging (wrong by 1/2 level)
319      - leave the old version (but will not be maintained) within
320        #ifdef OLD_VISBECK_CALC / #endif
321      - update output of exp. ideal_2D_oce
322    o change error catch in calc_r_star to improve vectorization
323    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
324      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
325    o adjoint:
326      Re-organized adjoint checkpointing according to Matt Mazloff
327      (but with modifs/completions/cleanups)
328      Storing is now bundled into large arrays to optimized I/O
329      (and second step in cleanup of the_main_loop)
330    
331    checkpoint59b
332    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
333      - export/import (between ocean & coupler) fields needed for ocean DIC.
334    o pkg/seaice:
335      - get rid of three more exchanges seaice_calc_viscosities (required
336        different loop boundaries in seaice_lsr and seaice_ocean_stress)
337      - bug fix in seaice_ocean_stress (update of lab_sea required)
338      - reduce loop boundaries to necessary minimum also in seaice_evp
339      - go back to the old way of computing deltaC/Z as the adjoint likes that
340        better
341    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
342      passive tracer to an Age Tracer) + update output.txt
343    o pkg/exf:
344      - implement A-grid / C-grid selection for wind-stress input files.
345      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
346      for now, in exf_bulk_largeyeager04.F only :
347      - change implementation for case where windspeed + 2. components wind-stress
348        are read-in. AND use rhoConstFresh to convert evap.
349    o pkg/seaice:
350      - use correct EXCH_UV for wind-forcing (on A-grid).
351      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
352        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
353    o pkg/exf:
354      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
355      EXF_INTERPOLATION:
356      - merge global_with_exf/code version of exf_interp_read.F
357        to the main code ;
358      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
359        reading the file ; Important: This options needs to be defined to recover
360        previous code.
361        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
362      - no longer loose real*8 precision along the way when using exf_iprec=64.
363    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
364      - change discretisation of evp-solver in order to avoid another exchange
365        (changes lab_sea) and clean up a little
366      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
367        help the adjoint (this also changes the results slightly)
368      - add a few "_d 0" where they had been missing in seaice_evp.F
369      - cleaning up: remove unused seaice_calc_rhs.F
370    o pkg/exf: some cleaning-up:
371      - change various "constants" into runtime parameters
372      - cleaned-up Large&Yeager04 routine which should eventually
373        replace exf_bulkformulae.F (changed names of S/R and CPP)
374        and merged various ALLOW_ATM_WIND options
375     only used with thsice pkg (in thsice_get_exf.F):
376      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
377        which are used when useStabilityFct_overIce=TRUE (= the default)
378      - change default values of ice & snow emissivity and scale downward LW
379        by ice & snow emissivity.
380    o pkg/thsice:
381     fix few little problems, in thsice_calc_thickn.F:
382      - growth vertically (and not laterally) if iceFrac == iceMaskMax
383      - melt only laterally if hIce < hThinIce (as the comments say)
384      and in thsice_extend.F:
385      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
386      - start to form ice as soon as the minimum ice-volume is reachable.
387     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
388      and cpl_aim+ocn
389    o pkg/kpp
390     - move computation of surface related input fields to KPP into a new
391       subroutine kpp_forcing_surf.F
392     - remove wrong (within bi,bj loops) EXCH calls.
393     - little cleaning (add argument myThid in last position, cvs header ...)
394     - for now, fix conservation problem by exchanging KPPviscAz (may not
395       be the best fix)
396    o pkg/seaice
397     - check for inconsistent evp parameter/cpp-flag combination
398     - remove leftover errIO flat for obsolete name list error handling
399    o OpenAD
400     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
401    
402    checkpoint59a
403    o pkg/seaice: some parameter clarifications and a little bit of clean up
404    o pkg/thsice: rename run-time parameters:
405       himin       -> hIceMin
406       himin0      -> hThinIce
407       hihig       -> hThickIce
408       i0          -> i0swFrac
409       transCoef   -> bMeltCoef
410       frac_energy -> fracMelting
411      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
412       with default values (for now) that do not change the results.
413      remove old version of thsice vars advection in pkg/seaice.
414    o in FFIELDS.h:
415      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
416      - make pLoad & sIceLoad always available (but still only used if
417         ATMOSPHERIC_LOADING is #define).
418    o pkg/kpp: replaced _KPP_RL with _RL
419    o bug fixes for vertical diffusivity computations when both KPP and
420        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
421        are no longer updating the vertical diffusivity array
422        (passed as argument) but are (re-) setting those arrays.
423    o pkg/seaice: fix bug in evp solver, while doing that
424      - change (improve?) discretization of stress computations for both
425        cgrid-lsr and evp solver
426      - add a new routine to compute strain rates
427      - the above changes lab_sea results
428      - add no slip conditions for evp solver (off by default), lsr-version
429        may follow
430      - fix exchange for shear at Z-points (does not change lab_sea)
431      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
432        (to force the user to pick a time step since there is not "safe" way
433        of choosing it)
434      - add principal stress diagnostics
435      - rearrange fields for evp a little to avoid having to call a: too many
436        exchanges and b: exchanges for stress trensor components which we do
437        not have.
438      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
439        of evp, complete rewrite for lsr case (latter is does not yet work
440        in all cases)
441    o pkg/kpp: add code to have mixing in shelf ice caverns
442      - add myThid to all kpp routines (long overdue)
443    
444    checkpoint59
445    o pkg/exf:
446      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
447        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
448      - move exf header files from lower_case.h to UPPER_CASE.h ;
449        add missing cvs Header & Name
450      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
451      - add namelist param. selectStressGridPosition, exf_monFreq
452      - retire many _CLIM routines, and remove data.exf_clim
453        + params moved to data.exf
454        + climsst, climsss now handled by exf_set_gen, i.e.
455          climss?period=0 refers to constant field,
456          climss?period=-12 to monthly forcing
457      - split up namelists in data.exf
458    o pkg/seaice:
459      - remove seaice_exch and seaice_exch_uv
460      - remove superfluous exchange of theta
461      - add myThid to seaice_budget_ocean/ice
462      - add new interface for atmospheric wind forcing (C-grid only)
463        + new routine
464        + two new field (taux, tauy for stress over ice)
465        + removed one global field (DAIRN) for C-grid case only
466    o pkg/thsise
467      - 2nd set of modifs for thsice adjoint in conjunction with exf
468    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
469    
470    checkpoint58y_post
471    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
472      vertical diffusivity, similar to that in MOM4; turned on using
473      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
474      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
475    o Added capability for 3D specification of background vertical diffusion
476      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
477      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
478      "data" file that contains the 3D vertical diffusivity coefficients.
479    o ice dynamics (pkg/seaice) with thsice thermodynamics:
480      - add code within pkg thsice to advect & diffuse sea-ice fields
481      similar to (and will replace) what has been added in  seaice_advdiff.F,
482      but: - conserving Mass, Heat & Salt.
483           - better when using non-linear advection scheme (not yet fully tested)
484           - can also be used in atmospheric set-up (for now, only the diffusion).
485    
486    checkpoint58x_post
487    o IO option for global-file compact format:
488      - add options when generating topology (utils/exch2/matlab-topology-generator)
489      - add I/O capability (pkg/mdsio).
490      - adapt utils/matlab/rdmds.m to read this format.
491      for now long-line format not yet supported by pkg/mdsio (& exch2).
492    o shelfice: add a few diagnostics
493    
494    checkpoint58w_post
495    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
496      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
497      (and replace horiVertRatio in NH code).
498      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
499                         and tutorial_plume_on_slope (sensitive to truncation)
500    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
501      directly to drive seaice model (C-grid only)
502    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
503     - reintroduce computation of wind from stress,
504     - compute tau (in exf_bulkformulae.F) from windstress averaged to
505       mass points to avoid tau = 0
506     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
507    o rdmnc.m: make it work with "global" files created with gluemnc
508    o rdmnc.m : some improvements in dealing with singleton dimension
509      (tested on all testreport mnc output files).
510    o genmake2: disable pkg/profiles if netcdf test fails.
511    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
512    o move call to cal_readparms up to make calendar parameters/variable available
513      to all packages
514    
515    checkpoint58v_post
516    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
517      useDynP_inEos_Zc tested.
518    o pkg/exf: changes to properly interpolate/mask/scale initial fields
519    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
520      and portions thereof.  See read_cs.txt for description and examples.
521    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
522      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
523      following the great-circle arc between those 2 points.
524    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
525      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
526    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
527     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
528     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
529     - still needs work (not working with some options ; efficiency to improve)
530       and serious testing.
531     - use this scheme for temperature & salinity in 2 advection test exp.:
532       advect_xy & advect_xz, respectively.
533    
534    checkpoint58u_post
535    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
536    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
537    o testreport: add option "-skipdir" to skip some test.
538    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
539      momentum calculation.
540    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
541    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
542      remove checkpoint.F and the_correction_step.F (no longer used);
543      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
544    o add option (linFSConserveTr) to correct for tracer source/sink due to
545      Linear Free surface
546    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
547    o pkg/thsice: fix reading mnc-pickups
548    
549    checkpoint58t_post
550    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
551    o pkg/mdsio:
552     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
553       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
554       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
555     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
556     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
557       either MDS_READ_FIELD or MDS_WRITE_FIELD )
558     - new S/R (to replace MDSWRITEMETA), which allows to write more
559       informations (variable names, time ...) to meta files.
560     - modify rdmds.m to give back the meta file content.
561    o pkg/diagnostics: change vertical interpolation to be safer, and more
562       flexible (define p-levels to interpolate to in data.diagnostics);
563      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
564       diagnostic pointer.
565    o pkg/seaice: more cleaning up of seaice_growth, added many comments
566    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
567    o fix multi-category seaice:
568     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
569       SEAICE_MULTICATEGORY
570     - fix short wave heat flux
571    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
572       and allow to use EVP solver. Change forward lab_sea: test both EVP
573       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
574    o Initial check-in of lab_sea adjoint
575      (very similar to natl_box_adjoint/code_seaice)
576      * used C-grid and EVP solver
577      * used KPP, GM/Redi
578      * uses inAdExact=.TRUE.
579      * gradient checks fail for both ADM and TLM
580        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
581        f.d. gradients actually seem more problematic than ADM, TLM gradients;
582        issue is related to forward mismatch between g77 an ifort
583    o pkg/seaice: overhaul of thermodynamics
584     - growth.F and groatb.F are replaced by new routine seaice_growth.F
585     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
586     - move a few global fields out of SEAICE.h into seaice_growth.F and
587       make them 2D (FICE/QNETO/ ...)
588     - remove FO (it is the same as QNETO)
589     - introduce a few local fields to avoid modifying external fields such
590       as atemp, etc.
591    
592    checkpoint58s_post
593    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
594      changed exf_set_gen.F so that
595        genperiod=0 means input file is one time-constant field and
596        genperiod=-12 means input file contains 12 monthly means
597    o CG2D: use pre-computed solver main-diagonal (stored in common block);
598      this affects truncation error ; generate new output file for exp. which
599      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
600        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
601        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
602        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
603        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
604        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
605    o start implementation of deep-atmosphere and anelastic formulation
606    o verification: remove 2nd copy of input files and use script "prepare_run"
607      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
608    o mom_common/vecinv/fluxform: fix a few initialisation isssues
609    o profiles: fix for multithreaded case
610    
611    o diagnostics: rename few diags:
612      s/'PRESSURE'/'RCENTER '/g
613      s/'TICE    '/'oceFreez'/g
614      s/'TAUX    '/'oceTAUX '/g
615      s/'TAUY    '/'oceTAUY '/g
616      s/'SWFLUX  '/'oceQsw  '/g
617      s/DIFx/DFxE/g
618      s/DIFy/DFyE/g
619      and add few ocean-forcing diagnostics:
620      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
621    o modifications to pkg/seaice/growth.F and budget.F, which change results of
622      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
623      as actual snow thickness.  It now refers everywhere to effective snow
624      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
625    
626    checkpoint58r_post
627    o modifications to pkg/seaice/growth.F, which change results of
628      lab_sea experiment: fixes pertain to melting snow over open water, to
629      masking EVAP under sea ice, and to using the correct AREA variable for
630      computations of EVAP, PRECIP, HSNOW, and GHEFF
631    o add ability to read bathy, salt, and theta using MNC (off by def)
632    o add flooding algorithm and advection of HSNOW for pkg/seaice;
633      both are turned off by default and do no change any results
634    o seaice advection with pkg/thsice: a step toward the use of non-linear
635      advection scheme, but #ifdef or commented out for now (requires more EXCH).
636    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
637      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
638      in natl_box (affects results @ truncation level: update output.txt)
639    o multi-threading and IO:
640      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
641      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
642        (needed to work with SingleCpuIO): tested in all verif. exp.
643    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
644      affects the results (but none of the verification test uses this scheme).
645    o Adding some pkg/diagnostics capability to pkg/seaice
646      (will certainly be subject to changes)
647    o ctrl: adding new control variables:
648      lwflux, lwdown, evap, snowprecip, apressure, runoff
649    
650    checkpoint58q_post
651    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
652      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
653      high_res_cube configuration by 4% on Columbia.
654    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
655      add (in global_with_exf/code) a version of EXF_INTERP_READ without
656      dynamical allocation (seems to work in multi-threaded).
657    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
658      single CPU io) so that TAF does not have to see EESUPPORT.h
659    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
660    
661    checkpoint58p_post
662    o obcs: stop if obcs is used with useCDscheme = .true.
663    o shelfice:
664     - fix a sign error so that no slip at shelfice interface works
665     - remove stop for combination non-hydrostatic code and shelfice. That does
666       not mean, that the results are correct, but at least they are numerically
667       stable
668    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
669    o added adjoint exch routined for all exch*3d* routines
670      and updated flow directives
671    
672    checkpoint58o_post
673    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
674      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
675    o change controling S/R for writing pickup file (new S/R do_write_pickup)
676      and clean-up reading/writing of pickup files.
677    o fix local version of read/write pickup (NH part) in rotating_tank/code
678    o simplify EXCH interface:
679     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
680     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
681    o added the regrid package
682    o shelfice:
683     - add a simple boundary layer scheme to reduce noise
684     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
685    
686    checkpoint58n_post
687    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
688       local variable (not in common block).
689    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
690      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
691      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
692        to work with SingleCpuIO.
693    o add "_d 0" to real constant of pkg/cfc subroutines ;
694       update exp. cfc_exemple & tutorial_cfc_offline output files.
695    o multi-threading and IO:
696      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
697        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
698      - barrier before and after reading.
699      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
700      - avoid using MDS_WRITELOCAL for LAND pkg output.
701      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
702        common-block variables ; Allows multi-threading with master-thread IO.
703    o change default MAX_NO_THREADS from 32 to 4 ;
704      and stop cleanly when MAX_NO_THREADS is too small.
705    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
706    
707    checkpoint58m_post
708    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
709       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
710    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
711       keep global_ocean.90x40x15 (for AD testing) with former secondary test
712       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
713    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
714        add MITgcm_tutorials (= code + all the tutorials)
715    o ecco, option to compute cost for total ssh (mean+anom)
716    o consistent with addition of ptracer and ssh in pkg/profiles
717    o profiles: adding ptracer and ssh
718    o testreport: change multi-test output-file name
719      (from output.txt.{name} to output.{name}.txt)
720    o profiles: now ok for mutli-tiles case
721    o seaice: add 4 parameters for different advection schemes for area,
722      (effective) seaice thickness, enthalphy, and snow height. Their default
723      is the standard parameter SEAICEadvScheme
724    o calc_gw:
725     - add cosFacU in zonal viscous flux (harmonic.visc.).
726     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
727       of tutorial_plume_on_slope.
728    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
729    o calc_gw: true flux-form, account for horizontal grid spacing.
730      update rotating_tank results, but not plume_on_slope (affected at
731      truncation level, 11 digits).
732    
733    checkpoint58l_post
734    o calc_gw:
735     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
736     - remove side-drag for now (need to fix it); update plume_on_slope results.
737     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
738    o commit code to make SST/SSS weights spatially variable
739      (based on either variable in-situ or variable initial T/S weights)
740    o pkg/ecco:
741      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
742        now based on horizontally varying weights wthetaLev, wsaltLev
743      * cost_averagesflags now returns year indices in addition to day, month
744      * sflux balance is performed on annual basis
745        (sflxumm, sfluxmm2, bal_sfluxmm)
746      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
747        including separate counting and multipliers
748    o pkg/rbcs
749      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
750    
751    checkpoint58k_post
752    o testreport:
753     - always build in dir. "build" (if not there, mkdir build instead of building
754       & running in input)
755     - run in dir run (if it exists), in build otherwise.
756     - call prepare_run (if input/prepare_run exists)
757     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
758    o pkg/exf modifications to interpolation and rotation routines for more
759       reasonable treatment of North Pole singularity: for tracers North Pole
760       value is set to northernmost zonal-mean value, for zonal velocity it is
761       set to zero, and for meridional velocity it is set to northernmost value.
762    o pkg/exf/exf_check_range.F
763     - add tile index to diagnostics and move stop statement to the very
764       end of the routine.
765    o pkg/diagnostics: (diagnostics_main_init.F)
766      define title of isomorphic variables according to the current config.
767    o pkg/thsice with pkg/seaice dynamics:
768    - fix domain of computation (interior only, required for exf) and do exchanges
769    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
770    o towards a standard way of dealing with multi-threading in MONITOR
771      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
772    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
773       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
774    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
775    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
776    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
777       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
778    o tracer advection:
779     - clean-up and simplify calc_common_factors.F
780     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
781       advection subroutine (but still not used within DST advection S/R)
782    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
783    
784    checkpoint58j_post
785    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
786      from file (collects calls previously in FORWARD_STEP)
787    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
788    o adjoint store dir. adjusted accordingly
789    o genmake2
790      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
791    
792    checkpoint58i_post
793    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
794      on wind stress (SEAICEstressFactor defaults to 1.)
795    o Total number of Timers is finite (<=40): comment out 2 non-essential one
796      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
797    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
798      on CS-grid: no longer loosing mass.
799    o exf & curvilinear-grid: no longer modify longitude xC & xG.
800    o pkg/ggl90: fix sloppy output and fix a bug
801    o pkg/seaice: added SEAICEuseEVPpickup parameter
802      - Set to false in order to start EVP solver with
803        non-EVP pickup files when using SEAICEuseEVP
804      - fix sign error in diffusion in seaice_calc_rhs
805    
806    checkpoint58h_post
807    * Modifications for bottom topography control
808      o replace hFacC by _hFacC at various places
809      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
810      o add non-self-adjoint cg2d_nsa
811      o update autodiff support routines
812      o re-initialise hfac after ctrl_depth_ini
813      o works for 5x5 box, doesnt work for global_ocean.90x40x15
814    * Adding verification for 5x5 box (4-layer) bottom topography control
815    
816    checkpoint58g_post
817    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
818       used for mean seasonal cycle, mean diurnal cycle); add an example
819       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
820    o pkg/ggl90:
821      - add parameter (minimum surface kinetic energy)
822      - fix bug (avoiding division by zero)
823    o couple pkg/thsice to pkg/seaice:
824      - modify advection in seaice to accomodate new scalar fields to be advected
825      - only muliDimAdection scheme work with seaice/thsice
826      - mapping of thsice-variables to seaice-variables, back and forth
827      - does not break the verification experiments, but does not give the
828        desired results either
829    o pkg/seaice
830      - make (default) second order advection a bit less confusing?
831    
832    checkpoint58f_post
833    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
834      to pkg/seaice):
835      - new routines thsice_map_exf and thsice_get_exf provide the interface
836      - add an additional formal parameter to thsice_solve4temp
837    o pkg/exf:
838      - add new fields wspeed, snowprecip (to be able to couple to thsice)
839      - correct Stefan-Boltzmann constant
840      - new parameter for longwave surface emittance
841      - separate some stuff from exf_bulkformulae into new routines  
842        exf_radiation, exf_wind
843      - add new parameters and constants: longwave emissivity for ocean, ice
844        and snow, evaporation parameters over ice
845      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
846        either wind from stress or stress from wind
847    o pkg/thSIce:
848    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
849    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
850       and THSICE_CALC_THICKN
851    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
852    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
853      to make debugging easier.
854    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
855    o pkg/bulk_force:
856      - clean-up comments and parameters ;
857      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
858    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
859      generate new output for test-experiment: aim.5l_cs.thSI
860    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
861      testreport accordingly
862    
863    checkpoint58e_post
864    o SEAICE_CGRID adjoint done
865    o R_STAR adjoint implemented.
866      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
867      * need to sort out init. of h0facc, etc.
868    o Make pkg/profile fully independent of ecco,cost, etc. stuff
869      to be able to use it in pure forward.
870    
871    checkpoint58d_post
872    o upgrade simple test-experiment to tutorial example:
873     step.1: duplicate the experiment and (step.2) will remove the old copy.
874      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
875      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
876      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
877      tutorial_global_oce_biogeo    <- copy of dic_example
878      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
879      tutorial_plume_on_slope       <- copy of plume_on_slope
880      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
881      tutorial_global_oce_optim     <- empty for now (David ?)
882      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
883     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
884    o correct a sign problem in cost_scat.F
885    o obcs and ptracers: fix boundary conditions for advections schemes
886      with larger stencil
887    o thsice adjoint: start
888    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
889      completeness
890    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
891      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
892    o ptracers adjoint:
893      * avoid extensive recomputatations
894      * fix missing re-init. of gptr (missed by TAF)
895    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
896      me to turn off the excessive output to STDOUT that this package produces
897    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
898      and add those terms in Vector-Invariant formulation.
899    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
900      if the control period (xx_hfluxperiod etc) is 0
901    o in profiles pkg, clean routines and fix details
902    o in ecco pkg, reading ssh data:
903      fix problem in case the model does not start at iter0=0
904    o fix mnc-pickup/restart for ptracers
905    o new package prifiles:
906      code to compute profile-based cost by Gael Forget
907      (modifs in ecco, ctrl, autodiff)
908    o Benign bug fix in initialization (spotted by M. Mazloff) of
909      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
910    
911    checkpoint58c_post
912    o adjoint: finish NLFS adjoint and provide reference output in
913      verification/global_ocean.90x40x15/results_ad_nlfs
914    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
915      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
916      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
917      with SEAICE_CGRID defined.
918    o move calendarDumps from "data" to "data.cal" and clean-up the code
919      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
920    o add useEXF & useCAL flags (for now, set in hard-coded way)
921    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
922      (were missing in NH mode, and wrong in quasihydrostatic mode).
923      waiting for Chris updated version of calc_gw to add those CALLs.
924    o fix bug in quasihydrostatic S/R ;
925      add a test for this option: global_ocean.90x40x15.qshyd
926    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
927      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
928    o add on/off flag useOffLine for package OFFLINE
929    o seaice:
930      - modify advection so that it works also on the C-grid
931      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
932        problem in multi-tile runs with C-grid
933      - add flags for clipping ice velocities and/or masking solver forcing
934      - fix drag (ocean on ice) formulation and a bug that caused noise in the
935        C-grid solver
936      - added a few comments to seaice_diffusion.F
937      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
938        are now exclusive)
939      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
940        required re-ordering the code a little:
941       + make DAIRN global variable (defined in SEAICE)
942       + move computation of the viscosities eta and zeta into a new separate
943         routine (because I need to recompute them in seaice_ocean_stress.F)
944    
945    checkpoint58b_post
946    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
947      update output.txt of exp. aim.5l_cs.thSI
948    o various mnc cleanups and improvements:
949      + shrink lookup tables by factor of ~4
950      + better error reporting when running out of lookup space
951      + able to handle longer path/file names (up to 500 chars)
952    o adjoint:
953      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
954      - TBD: "hidden" mom_vecinv recomp. in dynamics
955    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
956     (allow to differentiate between forcing components using new integer flags:
957      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
958     and add new flag to put Dissipation tendency out of Adams-Bashforth.
959    o ecco
960      - enable trend removal from SSH anomaly obs.
961    o adjoint
962      - a fix for PmEpR when #undef EXACT_CONSERV
963      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
964      - try to fix "hidden" recomp. in forward_step for NLFS
965        (NLFS seems broken sometimes after I checked it in)
966    o seaice:
967     - add c-grid version of the dynamic solver:
968       + three new routines that are the c-grid substitute lsr, dynsolver
969         and ostres
970       + put a few fields that were local to dynsolver into global common
971         blocks, so that I can move the computation of stresses etc into
972         seaice_lsr (saves coding but may break the adjoint).
973     - replace more hardwired parameters by runtime parameters
974     - add ice masks that mask the rhs of the implicit solvers where there
975       is no ice (commented out in seaice_dynsolver, because i am not sure
976       if this works properly), eventually this should replace the clipping
977       of ice velocities in seaice_dynsolver to +/-40cm/s.
978    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
979      include it only where its needed
980    o move balancing of fluxes before the call of external_forcing_surf
981    o seaice:
982      - correct units of turning angles (now they are really in degrees)
983      - move computation of GWATX/Y out of main routine into dynsolver
984      - initialize GWATX/Y in seaice_init
985    o Apply mask on Fresh-Water flux (needed for SSH forcing).
986      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
987    o seaice: add runtime flags for turning angles (default to zero)
988    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
989      and trend from exf forcing and ctrl control adjustments
990    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
991      (since checkpoint57x_post)
992    o change the default rotation period to 86164.s = the Earth rotation
993    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
994      and based on a reference stratification. Tested within hs94.cs-32x32x5.
995    o seaice advection: add code for choosing between the default (2nd order
996      central differences) and multiDim advection schemes provided by
997      pkg/generic_advdiff
998    o seaice:
999      - removed all references to SEAICE_GRID.h fields from
1000        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1001        (cubed-sphere configuration will change a little)
1002      - grid computations in seaice_init are obsolete now.
1003      - cleaned up code a little so that is easier to read (hopefully).
1004      - added new (better?) discretizations of default advection and diffusion
1005        (turn on with SEAICEuseFluxForm)
1006      - replace 1 in 3d global fields by kSurface in growth.F
1007      
1008    checkpoint58a_post
1009    o seaice:
1010      - bug fix in advect.F
1011    o shelfice:
1012      - separate shelfice load anomaly from pload (breaks with time
1013        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1014        Its default is 0., but it may be computed more cleverly from (unknown)
1015        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1016        done offline. A good approximation of the pressure load anomaly is
1017        necessary to avoid large initial adjustment processes underneath
1018        deep-reaching shelfice.
1019      - small fix in ISOMIP shelfice_thermodynamics
1020      - add more sophisticated thermodynamics of Hellmer (1989), this is
1021        now the default
1022      - give a few constants more intuitive names
1023    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1024      if bulk formulae are used in long integration (especially EmPmR). Turn
1025      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1026      if balancePrintMean, the imbalance that is substracted is printed to
1027      STDOUT.
1028    o fix bug (typo) in obcs_apply_eta.F
1029    o add a new package shelfice which enables us to model the circulation
1030      underneath shelf-ice with draughts of hundreds of meters.
1031     - works
1032     - to do: + include improved thermodynamics
1033              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1034                instead of new field kTopC
1035              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1036                instead of new field R_shelfIce and new code in ini_depth.F
1037                and ini_mask_etc.F?
1038              + adjust vertical mixing schemes?
1039    o seaice pkg:
1040     - add a cpp-flag to include a simple formula for a salinity dependent
1041       freezing point of sea water at the surface
1042     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1043       meridional stresses are now different (and hopefully correct)
1044    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1045       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1046       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1047    o pkg/diagnostics: add options and parameters for regional-statistics
1048       diagnostics ; define regions by reading a region-mask from a file
1049       (might add other options later)
1050    o pkg/bulk_force:
1051     - add option and parameters to use AIM surface-flux formulae.
1052     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1053       others forcing fields (defined in PARM05, parameter file "data") are loaded
1054       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1055     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1056     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1057     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1058       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1059     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1060    
1061    checkpoint58
1062    o add "--embed-source" option to genmake2 which, when the supporting
1063      tools can be compiled (as determined by genmake2) will turn on the
1064      embed_files package which then embeds the entire MITgcm source code
1065      (*.[fFhc] + Makefile) used for the build within the executable
1066      - requested by CNH but off by default
1067      - adds a paltry <9MB to the mitgcmuv executable in most cases
1068      - only writes the output when useEMBEDSRC in eedata is true
1069    o clean up 3-dim. relaxation codes:
1070      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1071      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1072      * Thanks to Tom Haine for testing!
1073    
1074    checkpoint57z_post
1075    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1076      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1077    o fix the pickup behavior for obcs in combination with ptracers
1078    o fix a bug in ptracers_external_fields_load
1079    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1080      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1081    o transfered surface NH pressure to eta field (if exactConserv).
1082    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1083         and update lab_sea output.txt file.
1084    o completing 3-dim. relaxation code: additional term
1085         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1086      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1087      * At compile time, in "EXF_OPTIONS.h" set
1088          #define  ALLOW_CLIMTEMP_RELAXATION
1089          #define  ALLOW_CLIMSALT_RELAXATION
1090      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1091          tauThetaClimRelax3Dim = 15552000.0,
1092          tauSaltClimRelax3Dim  = 15552000.0,
1093      * 3 cases:
1094          1) Use a constant-in-time 3-dim. field
1095          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1096          3) Real-time relax. to time-evolving prescribed field
1097    o Adding Laplacian-type smoothness constraint on
1098      initial and boundary (forcing) controls (ic, bc)
1099      * enable at compile-time via
1100        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1101      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1102      * Absolute scale somewhat unclear so far
1103      * no area weighting was included since no other cost term does so far
1104    
1105    checkpoint57y_post
1106    First step for a NLFS adjoint
1107    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1108    o new init. routines for calc_r_star, calc_surf_dr
1109    o still need to deal with ini_masks_etc
1110    o testreport seemed happy
1111    checkpoint57y_pre
1112    
1113    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1114    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1115    o add new offset feature to offline pkg (plus minor cleanup)
1116    o cfc fixes for final year of integration
1117    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1118      be in GCHEM_OPTIONS).
1119    
1120    checkpoint57x_post
1121    o fix testreport Pb in multiple test experiment.
1122    o cleanup our namelist syntax in verification:
1123      - make it more F95 standards compliant (some work still needed)
1124      - allows the vast majority of our tests to work with gfortran
1125    o Non-Hydrostatic:
1126     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1127     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1128    o Allow to apply AB on T,S rather than on AB(gT,gS):
1129     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1130     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1131       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1132     - need a "clever" read_pickup to restart from the other AB formulation
1133    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1134    o remove some unused variables (reduces number of compiler warnings)
1135    o adjoint
1136      * Disable useVariableViscosity for adjoint for time being
1137        (there are a number of extensive recomputations)
1138      * Initialize certain variables needed for adjoint
1139    
1140    checkpoint57w_post
1141    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1142                 fix the singleCpuIO RS version of MDSWRITEFIELD
1143       and add a WARNING if using globalFiles=T with multi-processors.
1144    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1145      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1146    o tracer advection scheme:
1147      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1148       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1149       was not very convenient).
1150      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1151       (further tests needed for the implicit DST & Flux-Limiter schemes).
1152    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1153      and sRef for convenience, handy, when you want to initialize
1154      ptracers in a large domain with a constant non-zero value. Also,
1155      untangle ptracers_init.F a little.
1156    
1157    checkpoint57v_post
1158    o change dome exp. to use variable viscosity in side-drag terms.
1159    o remove all the files from the cfc_offline test since they are now
1160      incorporated into tutorial_cfc_offline which has been producing
1161      identical results for a few days of testing
1162    o add new parameter: sideDragFactor to enable half-slip-side BC
1163      and change side-drag S/R to use viscosity from mom_calc_visc
1164      (can switch back by setting sideDragFactor=0.); affects results at
1165      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1166       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1167    o vorticity & strain are now computed without masking, to account for
1168      no-slip-side BC in variable viscosity calculation ; mask is applied
1169      anyway later on, before computing advection/coriolis terms.
1170    o modify exp4 to test new obcs support for reading from external files
1171      and for passive tracers
1172    o fix behavior of ptracers_monitor when monitor output is written to a
1173      netcdf-file; still not independent of monitor.F (writes in the same
1174      file).
1175    o change default value of tRef (put a uniform, meaningful value for ocean
1176      & atmos) and initialize sRef (was missing, as Martin mentioned).
1177    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1178      to be proportional to enstrophy dissipation length.  Thus,
1179       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1180      This is now consistent with Smagorinsky and with the manual.
1181    
1182    checkpoint57u_post
1183    o OBCS and PTRACERS: add open boundary support for passive tracers
1184      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1185        OB-values from file; this is not different from the way theta and salinity
1186        are treated
1187      - however, Orlanski-radiation conditions are not supported, and the model
1188        will stop if you use pTracers and Orlanski at the same time.
1189      - beefed up the rountine obcs_external_fields_load: now only those open
1190        boundary values are overwritten with values from files for which there
1191        are really files, otherwise the OB-fields remain untouched. This makes
1192        it possible to use different OBs at different ends of the domain (as
1193        with EXF)
1194    o reduce number of exch calls in shap_filt (s2).
1195    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1196      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1197    
1198    checkpoint57t_post
1199    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1200    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1201      same truncation, independent of the face number: affects affects several
1202      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1203    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1204      note that biharmonic viscosity + no-slip was not tested in any experiment.
1205    o fix bug in non-linear free-surf side-drag ; generate new output for
1206      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1207    o make mnc honor the writeBinaryPrec flag for most kinds of output
1208    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1209    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1210      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1211    o add brackets in multi-terms sum to get same truncation, independent of
1212      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1213      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1214    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1215      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1216      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1217      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1218      Suggested values of viscosity parameters found in mom_calc_visc.
1219      Many new viscosity diagnostics available.
1220    
1221    checkpoint57s_post
1222    o Add clearing-house for viscosity calculations, mom_calc_visc and
1223      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1224      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1225      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1226      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1227      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1228      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1229      ViscAhStrain and viscAhTension are now retired.
1230    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1231    o In response to JMC's bug report, genmake2 now ignores any soft-links
1232      that it finds in the *current* directory when searching for files.
1233      Soft-links found in any other source directories will still work as
1234      they did before.
1235    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1236      a C routine to unlimit the stack size
1237    o mnc-ify pkg/aim snapshot vars
1238    o mnc-ify pkg/land as requested by Daniel
1239    o various changes to mnc including:
1240      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1241      - output can now be grouped so that all files within a group
1242          change the ITER portion of their names in lock-step together
1243      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1244          and works with both EXCH1 and EXCH2 (but needs more testing)
1245      - writing works for all verification test cases w/ g77 on Linux
1246    
1247    checkpoint57r_post
1248    o make MNC variable initialization happen earlier
1249    o add diagnostics for (almost) each term of the momentum Eq.
1250    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1251    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1252    o remove MINIMAL_TAVE_OUTPUT option ;
1253      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1254    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1255      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1256    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1257    o add time-dependent SST, SSS control
1258    o cost terms in ecco/ modularized (new cost_generic.F)
1259    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1260    o new infrastructure for seaice model vs. obs misfits in seaice/
1261      * driver from the_main_loop.F is seaice_cost_driver.F
1262      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1263      * gradient check in Exp. 6a of natl_box_adjoint/
1264    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1265      (see README file)
1266    
1267    checkpoint57q_post
1268    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1269    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1270      - bug was reported by Jean-Michel and Ian Fenty
1271    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1272      update exp. cpl_aim+ocn output.
1273    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1274      Needed for high-res. runs with large global files
1275      to be able to limit tapelev size
1276    o Changed some tests for adjoint:
1277      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1278      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1279      * global_ocean.90x40x15/ back to default 3-level checkpointing
1280    o Modifications to enable scripted COMMON to MODULE conversion
1281      * verification/OpenAD/code/ has necessary scripts and description;
1282      * converts, compiles and runs successfully;
1283    
1284    checkpoint57p_post
1285    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1286    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1287      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1288    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1289    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1290      (was already the case for dissipation with mom_vecinv,
1291       and also the case for grad.PhiHyd when staggered-timeStep)
1292      This will allow to put dissipation out-off the AB time-stepping.
1293     Unfortunately, affects truncation error. Update output of exp. that "fails"
1294      (cg2d matching number) and leave the others for later: front_relax(10),
1295      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1296      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1297    
1298    checkpoint57o_post
1299    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1300      (2) its ready to be documented during the 20050801 DocFest
1301    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1302      for ideal_2D_oce and lab_sea on linux_ia32_g77
1303    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1304      in global1x1_tot/code_seaice_adj to access indices 32, 33
1305      (worth another tag)
1306    
1307    checkpoint57n_post
1308    o adding precip control xx_precip 32
1309    o adding swflux control xx_swflux 33
1310    o Replacing 10 forcing penalty cost routines by 1 generic.
1311    o Implementing partitioning in time-mean and variable adjustment
1312      for atmos. state.
1313    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1314    o in natl_box_adjoint:
1315      * updated exp 1 to 10
1316        (but does not have time-mean vs. variable split results yet)
1317    o updated global1x1/*_seaice_adj/
1318      to incorporate latest changes
1319    o enable useSingleCpuIO for mdsio vector routines
1320      (applies in particular to tapelev I/O)
1321    o removed inefficient K-loop in all active_file*control*.F
1322    
1323    checkpoint57m_post
1324    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1325      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1326    o pkg/exch2: filling of face-corner halo regions is optional
1327      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1328    
1329    checkpoint57l_post
1330     tag before updating tutorials (pre-release-2)
1331    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1332       for output and interpolation of input fields onto model grid)
1333    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1334       Affects results of exp. rotating_tank ; update output.txt.
1335    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1336          and taking the square quantity and/or using a fraction-weight field.
1337    o fix aim_diagnostics_init.F mate numbers.
1338    o add mnc output capability to diagnostics/diagstat and update
1339      our cvsignore files for the ACSII output generated
1340    
1341    checkpoint57k_post
1342    o lab_sea now uses diagnostics package and provides a suite of
1343      new EXF diagnostics output.
1344    
1345    checkpoint57j_post
1346    o exf
1347      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1348        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1349        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1350      * extended diagnostics output
1351        - now includes all EXF variables
1352        - hs, hl moved to common block
1353        - separate S/R for diagnostics, called after ctrl vector is added
1354        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1355        - EXFqnet contains true Qnet (i.e. includes qsw)
1356      * updated verif. lab_sea, global_with_exf
1357      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1358        to ensure that diagnostics sees a true EXFqnet
1359    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1360    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1361      several times with different frequencies.
1362    o mnc-ify the thsice package as requested by Daniel Enderton
1363      - the monitor--MNC output needs work
1364      - many attributes need to be added (most are currently blank)
1365    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1366      - many attributes need to be added (most are currently blank)
1367    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1368    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1369    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1370      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1371         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1372    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1373     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1374    
1375    checkpoint57i_post
1376    o Diagnostics package was changed: diagnostic allocation is now deactivated
1377      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1378    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1379      add 1rst Order upwind vertical Shear.
1380    o add a quick fix for A/B checkpointing in OFFLINE mode
1381    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1382      end-run around the C/Fortran linking horror in eesup/src/timers.F
1383    o added pkg/runclock: allows user to terminate run based on wall clock
1384    o added non-hydrostatic scaling parameter: nh_am2
1385    o pkg/my82: futile attempt to make results compiler-independent by adding
1386      some "_d 0", etc. no effect.
1387    o for mnc output, fill the 'T' coordinate var with myTime and create a
1388      separate 'iter' variable for iteration count
1389    o pkg/diagnostics:
1390      add new capability: output of Global/Regional & per-level statistics ;
1391      tested against monitor output (including land & thSIce) on various exp.
1392    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1393    
1394    checkpoint57h_done
1395      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1396      data.diagnostics, data.gchem, data.ptracers) is done.
1397    
1398    o pkg/diagnostics: prepare for Global/Regional statistics.
1399      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1400    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1401      and rename it: DIFFERENT_MULTIPLE
1402    
1403    checkpoint57h_post
1404    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1405    o pkg/diagnostics: change output frequency, now in seconds (instead
1406      of Nb of iterations). This requires to change data.diagnostics.
1407    checkpoint57h_pre
1408    
1409    o in mnc, let the user create the output dir if both mnc_outdir_date
1410      and mnc_outdir_num are false
1411    o add fflags() to pkg/diagnostics which allows one to specify, on a
1412      per-file basis, the file precision [default behavior is unchanged]
1413    o added diagnostics to pkg/kpp, including computation of mixed layer
1414      depth based on a temperature/density criterion
1415    o updated verification/natl_box to test the new pkg/kpp diagnostics
1416    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1417    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1418    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1419      not mnc -- this mistake was found by JMC and is now corrected
1420    
1421    checkpoint57g_post
1422    o add Adams-Bashforth 3rd Order time stepping:
1423      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1424      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1425    checkpoint57g_pre
1426    
1427    o make lambda[Theta,Salt]ClimRelax spatially varying
1428      (default remains spatially uniform constant based on tau)
1429    o added new control variables
1430      * init. uVel, vVel, etanN
1431      * lambda[Theta,Salt]ClimRelax
1432    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1433      (suggested by G. Forget)
1434    
1435    checkpoint57f_post
1436    o add parameter "baseTime" = model base time = time at iteration zero
1437      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1438      account for baseTime shift
1439    o move Coriolis arrays from PARAMS.h to GRID.h
1440    checkpoint57f_pre
1441    
1442    o mnc-ifying the seaice package
1443    o introduced an alternative length scale calculation for use in the limiting
1444      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1445    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1446    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1447      as well as grad(vort3).  Made it compatible with both approximate form
1448      for the cubed sphere and full form of these gradients.  Added flag
1449      useFullLeith to select between approximate and full form.  
1450    o add "d0" in getcon.F to reduce differences between compilers/platforms
1451      update output.txt of exp. fizhi-gridalt-hs
1452    o change port_rand funtion to allow to set the seed.
1453    o fix obscure MNC bug involving conversion between reals and integers
1454      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1455        new version is now more standards-compliant
1456    o adjoint-related modifications
1457      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1458      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1459      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1460    
1461    checkpoint57e_post
1462    o Adding eddy stress controls a la Ferreira et al.
1463    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1464    
1465    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1466      update output.txt of exp. fizhi-gridalt-hs
1467    o add more "Z" dimensions and associated coordinate vars to MNC
1468    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1469    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1470      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1471      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1472      months and years.  Requires pkg/cal.
1473    o diagnostics: add pickup functionality
1474      - off by default for backwards compatibility
1475      - current version only uses MDSIO -- MNC will be added
1476    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1477    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1478    
1479    checkpoint57d_post
1480    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1481    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1482      output from the diagnostics package
1483    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1484    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1485      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1486    o add coordinate variables to the MNC output from the diagnostics package
1487    o change MNC-flags default value: true when useMNC=TRUE
1488    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1489      the ability (off by default) to read the grid information using MNC
1490    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1491    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1492    o do snap-shot diagnostics at the middle of the time-interval (instead of
1493      at the end).
1494    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1495      new test for AIM with thSIce + slab-ocean
1496    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1497    o move state variable diagnostics to the beginning of the time step ;
1498      (note: still needs some work specially for snap-shot diagnostics)
1499      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1500    
1501    checkpoint57c_post
1502    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1503    o generate new output.txt files on faulks with g77 & the new -ieee option
1504    checkpoint57c_pre
1505    
1506    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1507      update output.txt of exp. global_ocean.90x40x15
1508    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1509      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1510    o add saltFlux(+File) forcing capability with periodicExternalForcing
1511    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1512    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1513    o improvements for the MNC output from DIAGNOSTICS:
1514      - correct handling of the unlimitied dimension
1515      - all dims now have associated coordinate variables
1516      - variables located at U, V, and Corner ("Z") points are now written
1517        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1518        *all* data points are output
1519    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1520    o added pkg/seaice/seaice_monitor.F
1521    o mdsio_readfield.F can now read files visible only to master MPI process.
1522    o pkg/seaice: some test code for ice-modified ocean stress
1523    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1524      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1525      spurious negative numbers for precipitation and humidity.  Will cause
1526      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1527    o pkg/ctrl/
1528      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1529        May be enabled via doPackDiag
1530      *  introduce z-scaling of
1531         + gradient (doZscalePack) and
1532         + control (doZscaleUnpack)
1533    o pkg/mdsio/
1534      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1535      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1536    
1537    checkpoint57b_post
1538    o simplify options in diagnostics_fill arguments (remove weird combinations)
1539    o fix MNC coordinate variables so that they now contain per-face index
1540      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1541      general, EXCH2 grids are only aligned to a "local" coordinate system
1542    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1543    o Implement instantaneous output within pkg diagnostics:
1544      setting a negative frequency in data.diagnostics produces
1545     "snap-shot" output (as opposed to time-average if freq > 0)
1546    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1547      NOTE: change ptracer diagnostics name: use 2 characters to work with
1548            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1549    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1550      becomes the coordinate variable for the 'T' dimension
1551    o add CF-style coordinate variables to MNC
1552      - just a first cut:  numbers are meaningless on the cubesphere and
1553        missing along the T axis but otherwise it works!
1554    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1555    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1556    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1557      this is based directly on what the model compute, so that the content of
1558      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1559    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1560    o clean up build options files for SunOS, in particular
1561      - remove -traditional from xmakedepend
1562      - change -xarch=v9 to -xarch=native for f77
1563      - restore use of make (not gmake)
1564      - add CC=gcc if using g77
1565    o changes per discussion of AM, JMC, & EH3 today:
1566      - move redundant "grid" variables out of "state" -- in preparation of
1567        creating proper CF-style coordinate variables and in recognition
1568        that any/all grid variables can be easily copied (eg. w/NCO) from
1569        the grid files into any of the other NetCDF files
1570      - *always* output grid variables with MDSIO (this will eventually be
1571        changed)
1572      - output MNC grid file if useMNC is true
1573    o every instance of _END_MASTER() has been found and replaced with
1574      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1575      preprocessors
1576    o re-arrange diagnostics pkg initialisation:
1577     - allow each package to extend the available diagnostics list
1578     - add some checking and fix small problems (multi-threaded, ...)
1579     - new S/R diagnostics_fill (replace fill_diagnostics):
1580       look through the short list of active diag. (instead of the long list)
1581       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1582    
1583    checkpoint57a_post
1584    o this set of changes restores TAMC compatibility
1585      tested for global_ocean.90x40x15 adjoint on trough
1586      (what a pain)
1587    
1588    checkpoint57a_pre
1589    o some modifs in tools/build_options for sunos
1590    o call ctrl_pack for ctrl at end for optimcycle=0
1591    
1592    checkpoint57
1593    o add horizontal bi-harmonic viscosity for vertical velocity
1594      - new parameter viscA4W (defaults to viscA4)
1595      - affects only non-hydrostatic code
1596      - to be done: no-slip lateral boundary conditions
1597    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1598    o implement Implicit Vertical advection for pTracers
1599    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1600      (implemented also for implicit vertical diffusion & advection)
1601    o OBCS: extend application of tracer open boundary conditions
1602      to a strip beyond the boundary of width Olx/Oly
1603    o add call monitor to TAF set of required calls (flow directives)
1604      and include in natl_box_adjoint
1605    o untangle a few ifdefs related to cost, ctrl, autodiff
1606      untangel a few ALLOW_ECCO_OPTIMIZATION
1607    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1608      (theta2, salt2 in ecco_cost_weights)
1609    
1610    checkpoint56c_post
1611    o OBCS as control variables
1612      - update ctrl_ad_diff.list, obcs_ad_diff.list
1613      - remove balance of obcs controls from default
1614      - fix index bug nobcs in ctrl_init
1615      - fix dummy fields filen in ctrl_pack
1616      - add dummy weights for obcs
1617    o lsopt: comment out fort.94 output
1618    o optim:
1619      - remove unnecessary header files
1620      - adjusted namelists
1621      - add xerbla.F to Makefile
1622    o exf:
1623      - multiple modifications of exf_check_range
1624      - unit change in exf_init_runoff from [m/year] to [m/s]
1625    o mdsio:
1626      - i/o-vector change debugLevel from debLevA to debLevB
1627    
1628    checkpoint56b_post
1629    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1630      is called from DO_THE_MODEL_IO
1631      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1632      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1633      - clean up PTRACERS_WRITE_TIMEAVE a little
1634    o add another verification experiment that tests both the cfc-pkg and
1635      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1636      reactive tendencies treated inline with regular timestepping
1637    o testreport previously did a lousy job of comparing small numbers, so
1638      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1639      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1640      testreport.
1641    o ptracers_monitor: bug fix for MPI
1642    
1643    checkpoint56a_post
1644    o GCHEM: finish reorganizating the package
1645      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1646        (introduces another 3D-array for each passive tracer, but only if
1647        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1648        gchemTendency is not needed because the timestep is done separately)
1649      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1650      - GCHEM is now---more or less cleanly---separate from PTRACERS
1651      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1652        so clear to me how that should be done in a general way.
1653    o CFC: improve formatting of output in CFC_ATMOS
1654    o PTRACERS:
1655      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1656        that ALL experiments with ptracers enable can be checked. This makes
1657        GCHEM_MONITOR obsolete.
1658      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1659        monitorFreq
1660      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1661    o add PTRACERS (PTR0[1-5]) to testreport output
1662    o exf_check_range:
1663      * default changed to .TRUE.
1664      * will check values for niter0 if debLevA, every timestep if debLevB
1665      * STOP in exf_check_range if 'out of range'
1666      * range chosen generous to allow for potential extema
1667      TBD: a version with stricter range
1668           permitted range would be runtime parameters
1669  o GMredi:  o GMredi:
1670    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1671    - 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 1674  o GCHEM:
1674    - 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
1675      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1676    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1677      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1678        this flag is now only visible within GCHEM-pkg routines.
1679      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1680        be replaced by a 3D array that is computed before thermodynamics; for
1681        this, the tracer ID iTracer had to be included into the parameter list
1682        of ptracers_forcing
1683      - set up forward_step to call gchem_forcing, that will replace
1684        gchem_forcing_int in ptracers_forcing
1685      - cleaning up
1686  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
1687    
1688  checkpoint56  checkpoint56

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