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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.923 by mlosch, Thu Dec 6 09:02:24 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice:
8      - add timescale for melting due to warm mixed layer as a means of
9        setting SEAICE_availHeatFrac more conveniently
10      - add a CPP-flag/runtime parameter check for flooding algorithm
11    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
12      unit changes
13    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
14    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
15      SX vector computer.
16    o pkg/seaice:
17      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
18        seaice forcing fields can now be read only through pkg/exf
19      - removed some unused halos
20    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
21    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
22      or U/VICE from U/VWIND before computing U/VSTRESS
23    
24    checkpoint59k
25    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
26      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
27    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
28      all experiments pass when compile with un-initilised var. checking option.
29    o added pkg/salt_plume
30    o script to test restart (for now, in MITgcm_contrib/jmc_script)
31    o pkg/seaice: new read/write pickup version.
32      read meta file and write only fields which are needed to restart.
33      ( same logic as main pickup file ; also using pickupStrictlyMatch )
34    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
35    o lab_sea.hb87: modify the domain & update output.hb87.txt :
36      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
37      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
38      process. Fixed here by closing the domain at the Northern boundary.
39    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
40    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
41      a set of consecutive levels in/from a 3-D array.
42    o pkg/ptracers:
43      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
44      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
45    
46    checkpoint59j
47    o in pkgs: dic, obcs, offline, rbcs:
48      standard way to compute coeff. for time interpolation between 2 time reccords
49      which retains full precision (& make results less dependent on compiler).
50      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
51    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
52      packages instead of reading ice cover and wind speed separately
53    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
54     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
55      to allow to compile customized code before the update)
56    o cleaning-up:
57      - fix CPP instruction syntax in pkg/obcs
58      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
59        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
60      - fix some threads issue in IO parts.
61    o pkg/dic:
62      - add tons of "_d 0" (--> much better testreports !)
63       and then update outputs of tutorial_global_oce_biogeo
64    o pkg/mom_fluxform:
65      add a special version of momentum advection intended to conserve momentum
66      next to a bathymetry step or a coastline edge. (default = off = #undef)
67    o new read/write pickup version:
68      - for now, only implemented for main (mdsio) pickup file.
69      - write out only what is needed to restart; merge pickup_nh , pickup_ph
70        and main pickup together.
71      - read meta file; read only what is needed to restart; stop if a field
72        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
73        if it make sense (even if the restart is not perfect).
74      - if no meta file, assume that pickup to read corresponds exactly to
75        a pickup that would currently be written.
76      - read pickup written in the old format (until checkpoint59i) if it
77        recognizes an old meta file (no field-list).
78      - add a meta file in exp. which starts from a pickup: 2 cases:
79        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
80         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
81        b) a meta file describing the content of the associated pickup file
82         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
83    o pkg/mdsio & pkg/rw:
84      - new routine to read a meta file ; new set of routine to read
85        Multiple-fields file (with meta file).
86    o added open boundary conditions capability for seaice
87        HSNOW, HSALT, UICE, and VICE
88    
89    checkpoint59i
90    o adjoint:
91      * fix multiDimAdvection adjoint
92        (partial recomputation problem by TAF for fVerT(:,:,kDown)
93        and comlev1 size definition (maxpass vs. max. number of tracers)
94      * verification/global_ocean.90x45x15 adjoint now tests
95        NLFS and multiDimAdvection using DST3 (=30)
96      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
97    o pkg/kpp: add "_d 0" to real constant (if missing);
98      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
99      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
100    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
101      for internal parameters related to restart process (formerly from PARAMS.h)
102      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
103    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
104      as argument. (only atm2d & obcs write_pickup have not yet been updated)
105    o pkg/monitor:
106      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
107      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
108      - account for deep Atmosphere factor and density factor (anelastic)
109    o added open boundary conditions capability for seaice HEFF and AREA
110    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
111      thermodynamics
112      - requires a little reorganization, which affects the testreport results
113        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
114        so that now the conservative form is tested
115      - add a few comments
116    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
117    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
118    o add new diagnostics to seaice: advective, diffusive fluxes (only for
119      multidim-advection, for scheme 2 they are not filled) and transports,
120      thermodynamic growth rates
121    o change units of EmPmR (inside the code, + within coupling interface)
122      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
123      Affects results @ truncation level (cg2d match) and update output of
124       experiments: lab_sea(6), global_ocean.90x40x15(10),
125      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
126      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
127      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
128      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
129    
130    checkpoint59h
131    o pkg/exf:
132      - improve vectorization by moving if-statement out of loops in
133        exf_mapfields, exf_radiation
134      - exf_bulkformulae.F: introduce 2D fields and vectorize code
135    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
136    o testreport:
137      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
138        monitor & update offline_exf_seaice exp. output.
139      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
140    o pkg/seaice:
141      - bug fix in the evp solver: boundary conditions were affected be
142        masking of zMax/zMin (changes results)
143      - minor bug fix in boundary conditions in seaice_calc_strainrates
144        (changes results for no_slip)
145      - seaice_lsr.F: make interpolation of eta dependent on boundaries
146      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
147      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
148        stress formulation and no-slip boundary conditions
149    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
150      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
151    o pkg/seaice: a first HSALT time stepping equation has been checked in
152    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
153      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
154      without requiring DO-IF statements
155    o pkg/thsice:
156      use continuous power-law function for partition of energy between lateral
157      melting/freezing and thinning/thickening ; old code using step function
158      still available with #undef THSICE_FRACEN_POWERLAW
159      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
160    o testreport: change AD testing : check against results/output_adm.txt
161      using same scripts as for forward test.
162    
163    checkpoint59g
164    o adjoint testing: in preparation for changing testreport:
165      - output format: cost and grad written on separated lines
166      - ad output results in directory "results" (instead of "results_ad")
167    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
168    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
169    o pkg/ecco: allow user defined cost function contributions
170    o testreport:
171      Allow to choose (per experiment) the list of tested output variables
172       and the main variable (used to issue a pass/FAIL ) ;
173      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
174      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
175      Also modify printing of summary:
176       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
177       b) echo the list of tested variables in the individual summary.txt of
178          each experiment.
179    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
180      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
181      (but still depend on the tile decompostion of the domain).
182    o pkg/seaice: change a discretization detail to make the B-grid code
183      "more symmetric". This change is likely to remove all "ridges/leads" that
184      where quasi-aligned with the grid in B-grid solutions. It may also be
185      the solution to the stress coupling issues with the B-grid.
186    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
187      remove .cvsignore from input dir. (since testreport no longer run here).
188    o pkg/thsice:
189     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
190     - fix reshaping of sea-ice just after advection:
191       melt all the ice only if ice-volume is too small.
192     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
193       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
194     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
195    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
196      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
197    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
198      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
199      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
200      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
201      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
202      -> update output.txt
203    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
204     this affects truncation error: -> update output.txt of exp:
205      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
206      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
207    
208    checkpoint59f
209    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
210    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
211      a bounded range (in forward mode)
212    o pkg/ecco, ctrl, autodiff and mom_common:
213     internal parameter controls, completements of implementations
214    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
215    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
216      (not seem any difference in testing results).
217    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
218       at face corners.
219    o pkg/generic_advdiff:
220     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
221      loop range indices for computing vertical advection tendency
222      and do the calculation in the interior only (no overlap) ;
223      for now, only implemented for SOM advection (to save CPU time).
224     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
225    o exch2 adjoint
226      First set of changes:
227      - add exch2 hand-written adjoint templates
228      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
229        This will require cleanup in pkg/autodiff/*.F
230        (changed routines currently kept separate in verif. code/)
231      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
232        that used to hide exch2 or cubed-sphere specific code
233        (commented via 'cph-exch2')
234    o pkg/seaice
235      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
236    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
237       output of global_ocean.cs32x15.thsice .
238    
239    checkpoint59e
240    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
241      for B-grid vector (not yet tested) and C-grid vector (<- only used
242      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
243    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
244      (#ifdef ALLOW_SALT_PLUME)
245    o gather_2d/scatter_2d: removed halo regions
246    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
247      scheme and the corresponding test case (under front_relax dir). For now,
248      only available with Skew-flux form and not yet tested in realistic set-up.
249      adjoint: store directives updated, but gradient checks deteriorated,
250      so maybe GM/Redi adjoint is now broken.
251    o seaice adjoint
252      * add AREA, HEFF, HSNOW as control variable
253        (should not change lab_sea results)
254      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
255    o pkg/seaice:
256      * added computation of saltFlux in seaice_growth;
257        For time being, sea ice salinity is assumed constant
258        contribution of snow flooding to freshening of sea ice is neglected.
259        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
260        defaults to 0.0 in order to maintain backward compatibility.
261        Typical values for SEAICE_salinity are 4 to 10 g/kg.
262      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
263      * added SEAICE_availHeatFrac, which specifies fraction of surface level
264        heat content used to melt or grow ice
265      * commented out cap of HICE: it helps keep ice thinner
266      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
267      * applied OBCS T/S mask to HEFFM sea ice mask
268    
269    checkpoint59d
270    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
271     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
272     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
273    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
274     and change default value of parameter "GM_Small_Number";
275     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
276       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
277       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
278    o pkg/ecco: cost function when applying pkg/smooth to controls
279    o pkg/ctrl: add forcingPrecond run time parameter
280    o pkg/seaice:
281     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
282     - fix bug in metric terms of u-equation in LSR solver (implicit part),
283       changes verification/lab_sea
284     - rearrange implicit part of u-equation in LSR solver to make it easier to
285       read, understand, and debug. This causes changes at the truncation level.
286     - fix (serious) bug in the boundary conditions (sign error in the implicit
287       part) of the LSR solver. Changes all LSR results.
288     - fixed problem with HSNOW initialization to avoid thick snow when AREA
289       is initilized with small values - does not change lab_sea results.
290     - added HsnowFile initialization capability
291    o pkg/smooth: addition to model/src and pkg/ctrl so allow
292     initialization of pkg/smooth and application to control vector
293    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
294    o dependencies: pkg/profiles requires pkg/cal
295    o pkg/profiles:
296     - added option ALLOW_PROFILES_GENERICGRID
297         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
298         that interpolation information (grid points and coefficients) is provided
299         within the netcdf input files.
300         -> sample matlab scripts can be found in MITgcm_contrib/gael
301         that allow you to prepare netcdf input files.
302     - also modified: cleaner include statements, cleaner error print statements,
303       cleaner stops when error, and more tests of the netcdf input files consistency.
304    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
305    o pkg/seaice:
306     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
307       requires a new routine: seaice_diagnostics_fill.F
308     - make sure that seaice does not move if not forced (pressure replacement
309       method, Hibler and Ip, 1995), changes results
310     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
311     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
312       It is turned off by default (=-1.), because it changes the results.
313     - make it possible to read AREA from a file, too.
314    
315    checkpoint59c
316    o add S/R and diagnostics for oceanic mixed-layer depth
317    o move GMRedi call after all vertical mixing schemes (including KPP)
318    o pkg/thsice:
319     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
320      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
321    o pkg/obcs:
322     - bug fix for balance code
323    o pkg/seaice:
324      - allow values of SEAICE_elasticParm > 1
325      - add new parameter SEAICE_evpTauRelax as an alternative
326        to SEAICE_elasticParm
327      - make lsr boundary conditions free slip (by default), changes result
328      - add code for no slip boundary conditions for lsr
329      - set minimum of zeta to zero (and not 4e8) (changes results)
330      - add a cap on AREA after advecting AREA if seaice_growth is not called
331    o change calculation of Visbeck K:
332      - no longer depend on tapering scheme; instead, compute slope (limited
333        by GM_maxSlope). this is equivalent to what was comuted before with
334        clipping or linear tappering.
335      - fix vertical averaging (wrong by 1/2 level)
336      - leave the old version (but will not be maintained) within
337        #ifdef OLD_VISBECK_CALC / #endif
338      - update output of exp. ideal_2D_oce
339    o change error catch in calc_r_star to improve vectorization
340    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
341      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
342    o adjoint:
343      Re-organized adjoint checkpointing according to Matt Mazloff
344      (but with modifs/completions/cleanups)
345      Storing is now bundled into large arrays to optimized I/O
346      (and second step in cleanup of the_main_loop)
347    
348    checkpoint59b
349    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
350      - export/import (between ocean & coupler) fields needed for ocean DIC.
351    o pkg/seaice:
352      - get rid of three more exchanges seaice_calc_viscosities (required
353        different loop boundaries in seaice_lsr and seaice_ocean_stress)
354      - bug fix in seaice_ocean_stress (update of lab_sea required)
355      - reduce loop boundaries to necessary minimum also in seaice_evp
356      - go back to the old way of computing deltaC/Z as the adjoint likes that
357        better
358    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
359      passive tracer to an Age Tracer) + update output.txt
360    o pkg/exf:
361      - implement A-grid / C-grid selection for wind-stress input files.
362      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
363      for now, in exf_bulk_largeyeager04.F only :
364      - change implementation for case where windspeed + 2. components wind-stress
365        are read-in. AND use rhoConstFresh to convert evap.
366    o pkg/seaice:
367      - use correct EXCH_UV for wind-forcing (on A-grid).
368      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
369        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
370    o pkg/exf:
371      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
372      EXF_INTERPOLATION:
373      - merge global_with_exf/code version of exf_interp_read.F
374        to the main code ;
375      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
376        reading the file ; Important: This options needs to be defined to recover
377        previous code.
378        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
379      - no longer loose real*8 precision along the way when using exf_iprec=64.
380    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
381      - change discretisation of evp-solver in order to avoid another exchange
382        (changes lab_sea) and clean up a little
383      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
384        help the adjoint (this also changes the results slightly)
385      - add a few "_d 0" where they had been missing in seaice_evp.F
386      - cleaning up: remove unused seaice_calc_rhs.F
387    o pkg/exf: some cleaning-up:
388      - change various "constants" into runtime parameters
389      - cleaned-up Large&Yeager04 routine which should eventually
390        replace exf_bulkformulae.F (changed names of S/R and CPP)
391        and merged various ALLOW_ATM_WIND options
392     only used with thsice pkg (in thsice_get_exf.F):
393      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
394        which are used when useStabilityFct_overIce=TRUE (= the default)
395      - change default values of ice & snow emissivity and scale downward LW
396        by ice & snow emissivity.
397    o pkg/thsice:
398     fix few little problems, in thsice_calc_thickn.F:
399      - growth vertically (and not laterally) if iceFrac == iceMaskMax
400      - melt only laterally if hIce < hThinIce (as the comments say)
401      and in thsice_extend.F:
402      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
403      - start to form ice as soon as the minimum ice-volume is reachable.
404     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
405      and cpl_aim+ocn
406    o pkg/kpp
407     - move computation of surface related input fields to KPP into a new
408       subroutine kpp_forcing_surf.F
409     - remove wrong (within bi,bj loops) EXCH calls.
410     - little cleaning (add argument myThid in last position, cvs header ...)
411     - for now, fix conservation problem by exchanging KPPviscAz (may not
412       be the best fix)
413    o pkg/seaice
414     - check for inconsistent evp parameter/cpp-flag combination
415     - remove leftover errIO flat for obsolete name list error handling
416    o OpenAD
417     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
418    
419    checkpoint59a
420    o pkg/seaice: some parameter clarifications and a little bit of clean up
421    o pkg/thsice: rename run-time parameters:
422       himin       -> hIceMin
423       himin0      -> hThinIce
424       hihig       -> hThickIce
425       i0          -> i0swFrac
426       transCoef   -> bMeltCoef
427       frac_energy -> fracMelting
428      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
429       with default values (for now) that do not change the results.
430      remove old version of thsice vars advection in pkg/seaice.
431    o in FFIELDS.h:
432      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
433      - make pLoad & sIceLoad always available (but still only used if
434         ATMOSPHERIC_LOADING is #define).
435    o pkg/kpp: replaced _KPP_RL with _RL
436    o bug fixes for vertical diffusivity computations when both KPP and
437        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
438        are no longer updating the vertical diffusivity array
439        (passed as argument) but are (re-) setting those arrays.
440    o pkg/seaice: fix bug in evp solver, while doing that
441      - change (improve?) discretization of stress computations for both
442        cgrid-lsr and evp solver
443      - add a new routine to compute strain rates
444      - the above changes lab_sea results
445      - add no slip conditions for evp solver (off by default), lsr-version
446        may follow
447      - fix exchange for shear at Z-points (does not change lab_sea)
448      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
449        (to force the user to pick a time step since there is not "safe" way
450        of choosing it)
451      - add principal stress diagnostics
452      - rearrange fields for evp a little to avoid having to call a: too many
453        exchanges and b: exchanges for stress trensor components which we do
454        not have.
455      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
456        of evp, complete rewrite for lsr case (latter is does not yet work
457        in all cases)
458    o pkg/kpp: add code to have mixing in shelf ice caverns
459      - add myThid to all kpp routines (long overdue)
460    
461    checkpoint59
462    o pkg/exf:
463      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
464        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
465      - move exf header files from lower_case.h to UPPER_CASE.h ;
466        add missing cvs Header & Name
467      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
468      - add namelist param. selectStressGridPosition, exf_monFreq
469      - retire many _CLIM routines, and remove data.exf_clim
470        + params moved to data.exf
471        + climsst, climsss now handled by exf_set_gen, i.e.
472          climss?period=0 refers to constant field,
473          climss?period=-12 to monthly forcing
474      - split up namelists in data.exf
475    o pkg/seaice:
476      - remove seaice_exch and seaice_exch_uv
477      - remove superfluous exchange of theta
478      - add myThid to seaice_budget_ocean/ice
479      - add new interface for atmospheric wind forcing (C-grid only)
480        + new routine
481        + two new field (taux, tauy for stress over ice)
482        + removed one global field (DAIRN) for C-grid case only
483    o pkg/thsise
484      - 2nd set of modifs for thsice adjoint in conjunction with exf
485    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
486    
487    checkpoint58y_post
488    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
489      vertical diffusivity, similar to that in MOM4; turned on using
490      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
491      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
492    o Added capability for 3D specification of background vertical diffusion
493      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
494      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
495      "data" file that contains the 3D vertical diffusivity coefficients.
496    o ice dynamics (pkg/seaice) with thsice thermodynamics:
497      - add code within pkg thsice to advect & diffuse sea-ice fields
498      similar to (and will replace) what has been added in  seaice_advdiff.F,
499      but: - conserving Mass, Heat & Salt.
500           - better when using non-linear advection scheme (not yet fully tested)
501           - can also be used in atmospheric set-up (for now, only the diffusion).
502    
503    checkpoint58x_post
504    o IO option for global-file compact format:
505      - add options when generating topology (utils/exch2/matlab-topology-generator)
506      - add I/O capability (pkg/mdsio).
507      - adapt utils/matlab/rdmds.m to read this format.
508      for now long-line format not yet supported by pkg/mdsio (& exch2).
509    o shelfice: add a few diagnostics
510    
511    checkpoint58w_post
512    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
513      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
514      (and replace horiVertRatio in NH code).
515      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
516                         and tutorial_plume_on_slope (sensitive to truncation)
517    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
518      directly to drive seaice model (C-grid only)
519    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
520     - reintroduce computation of wind from stress,
521     - compute tau (in exf_bulkformulae.F) from windstress averaged to
522       mass points to avoid tau = 0
523     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
524    o rdmnc.m: make it work with "global" files created with gluemnc
525    o rdmnc.m : some improvements in dealing with singleton dimension
526      (tested on all testreport mnc output files).
527    o genmake2: disable pkg/profiles if netcdf test fails.
528    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
529    o move call to cal_readparms up to make calendar parameters/variable available
530      to all packages
531    
532    checkpoint58v_post
533    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
534      useDynP_inEos_Zc tested.
535    o pkg/exf: changes to properly interpolate/mask/scale initial fields
536    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
537      and portions thereof.  See read_cs.txt for description and examples.
538    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
539      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
540      following the great-circle arc between those 2 points.
541    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
542      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
543    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
544     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
545     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
546     - still needs work (not working with some options ; efficiency to improve)
547       and serious testing.
548     - use this scheme for temperature & salinity in 2 advection test exp.:
549       advect_xy & advect_xz, respectively.
550    
551    checkpoint58u_post
552    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
553    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
554    o testreport: add option "-skipdir" to skip some test.
555    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
556      momentum calculation.
557    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
558    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
559      remove checkpoint.F and the_correction_step.F (no longer used);
560      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
561    o add option (linFSConserveTr) to correct for tracer source/sink due to
562      Linear Free surface
563    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
564    o pkg/thsice: fix reading mnc-pickups
565    
566    checkpoint58t_post
567    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
568    o pkg/mdsio:
569     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
570       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
571       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
572     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
573     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
574       either MDS_READ_FIELD or MDS_WRITE_FIELD )
575     - new S/R (to replace MDSWRITEMETA), which allows to write more
576       informations (variable names, time ...) to meta files.
577     - modify rdmds.m to give back the meta file content.
578    o pkg/diagnostics: change vertical interpolation to be safer, and more
579       flexible (define p-levels to interpolate to in data.diagnostics);
580      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
581       diagnostic pointer.
582    o pkg/seaice: more cleaning up of seaice_growth, added many comments
583    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
584    o fix multi-category seaice:
585     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
586       SEAICE_MULTICATEGORY
587     - fix short wave heat flux
588    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
589       and allow to use EVP solver. Change forward lab_sea: test both EVP
590       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
591    o Initial check-in of lab_sea adjoint
592      (very similar to natl_box_adjoint/code_seaice)
593      * used C-grid and EVP solver
594      * used KPP, GM/Redi
595      * uses inAdExact=.TRUE.
596      * gradient checks fail for both ADM and TLM
597        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
598        f.d. gradients actually seem more problematic than ADM, TLM gradients;
599        issue is related to forward mismatch between g77 an ifort
600    o pkg/seaice: overhaul of thermodynamics
601     - growth.F and groatb.F are replaced by new routine seaice_growth.F
602     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
603     - move a few global fields out of SEAICE.h into seaice_growth.F and
604       make them 2D (FICE/QNETO/ ...)
605     - remove FO (it is the same as QNETO)
606     - introduce a few local fields to avoid modifying external fields such
607       as atemp, etc.
608    
609    checkpoint58s_post
610    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
611      changed exf_set_gen.F so that
612        genperiod=0 means input file is one time-constant field and
613        genperiod=-12 means input file contains 12 monthly means
614    o CG2D: use pre-computed solver main-diagonal (stored in common block);
615      this affects truncation error ; generate new output file for exp. which
616      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
617        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
618        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
619        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
620        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
621        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
622    o start implementation of deep-atmosphere and anelastic formulation
623    o verification: remove 2nd copy of input files and use script "prepare_run"
624      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
625    o mom_common/vecinv/fluxform: fix a few initialisation isssues
626    o profiles: fix for multithreaded case
627    
628    o diagnostics: rename few diags:
629      s/'PRESSURE'/'RCENTER '/g
630      s/'TICE    '/'oceFreez'/g
631      s/'TAUX    '/'oceTAUX '/g
632      s/'TAUY    '/'oceTAUY '/g
633      s/'SWFLUX  '/'oceQsw  '/g
634      s/DIFx/DFxE/g
635      s/DIFy/DFyE/g
636      and add few ocean-forcing diagnostics:
637      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
638    o modifications to pkg/seaice/growth.F and budget.F, which change results of
639      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
640      as actual snow thickness.  It now refers everywhere to effective snow
641      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
642    
643    checkpoint58r_post
644    o modifications to pkg/seaice/growth.F, which change results of
645      lab_sea experiment: fixes pertain to melting snow over open water, to
646      masking EVAP under sea ice, and to using the correct AREA variable for
647      computations of EVAP, PRECIP, HSNOW, and GHEFF
648    o add ability to read bathy, salt, and theta using MNC (off by def)
649    o add flooding algorithm and advection of HSNOW for pkg/seaice;
650      both are turned off by default and do no change any results
651    o seaice advection with pkg/thsice: a step toward the use of non-linear
652      advection scheme, but #ifdef or commented out for now (requires more EXCH).
653    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
654      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
655      in natl_box (affects results @ truncation level: update output.txt)
656    o multi-threading and IO:
657      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
658      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
659        (needed to work with SingleCpuIO): tested in all verif. exp.
660    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
661      affects the results (but none of the verification test uses this scheme).
662    o Adding some pkg/diagnostics capability to pkg/seaice
663      (will certainly be subject to changes)
664    o ctrl: adding new control variables:
665      lwflux, lwdown, evap, snowprecip, apressure, runoff
666    
667    checkpoint58q_post
668    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
669      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
670      high_res_cube configuration by 4% on Columbia.
671    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
672      add (in global_with_exf/code) a version of EXF_INTERP_READ without
673      dynamical allocation (seems to work in multi-threaded).
674    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
675      single CPU io) so that TAF does not have to see EESUPPORT.h
676    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
677    
678    checkpoint58p_post
679    o obcs: stop if obcs is used with useCDscheme = .true.
680    o shelfice:
681     - fix a sign error so that no slip at shelfice interface works
682     - remove stop for combination non-hydrostatic code and shelfice. That does
683       not mean, that the results are correct, but at least they are numerically
684       stable
685    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
686    o added adjoint exch routined for all exch*3d* routines
687      and updated flow directives
688    
689    checkpoint58o_post
690    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
691      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
692    o change controling S/R for writing pickup file (new S/R do_write_pickup)
693      and clean-up reading/writing of pickup files.
694    o fix local version of read/write pickup (NH part) in rotating_tank/code
695    o simplify EXCH interface:
696     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
697     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
698    o added the regrid package
699    o shelfice:
700     - add a simple boundary layer scheme to reduce noise
701     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
702    
703    checkpoint58n_post
704    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
705       local variable (not in common block).
706    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
707      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
708      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
709        to work with SingleCpuIO.
710    o add "_d 0" to real constant of pkg/cfc subroutines ;
711       update exp. cfc_exemple & tutorial_cfc_offline output files.
712    o multi-threading and IO:
713      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
714        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
715      - barrier before and after reading.
716      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
717      - avoid using MDS_WRITELOCAL for LAND pkg output.
718      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
719        common-block variables ; Allows multi-threading with master-thread IO.
720    o change default MAX_NO_THREADS from 32 to 4 ;
721      and stop cleanly when MAX_NO_THREADS is too small.
722    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
723    
724    checkpoint58m_post
725    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
726       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
727    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
728       keep global_ocean.90x40x15 (for AD testing) with former secondary test
729       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
730    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
731        add MITgcm_tutorials (= code + all the tutorials)
732    o ecco, option to compute cost for total ssh (mean+anom)
733    o consistent with addition of ptracer and ssh in pkg/profiles
734    o profiles: adding ptracer and ssh
735    o testreport: change multi-test output-file name
736      (from output.txt.{name} to output.{name}.txt)
737    o profiles: now ok for mutli-tiles case
738    o seaice: add 4 parameters for different advection schemes for area,
739      (effective) seaice thickness, enthalphy, and snow height. Their default
740      is the standard parameter SEAICEadvScheme
741    o calc_gw:
742     - add cosFacU in zonal viscous flux (harmonic.visc.).
743     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
744       of tutorial_plume_on_slope.
745    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
746    o calc_gw: true flux-form, account for horizontal grid spacing.
747      update rotating_tank results, but not plume_on_slope (affected at
748      truncation level, 11 digits).
749    
750    checkpoint58l_post
751    o calc_gw:
752     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
753     - remove side-drag for now (need to fix it); update plume_on_slope results.
754     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
755    o commit code to make SST/SSS weights spatially variable
756      (based on either variable in-situ or variable initial T/S weights)
757    o pkg/ecco:
758      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
759        now based on horizontally varying weights wthetaLev, wsaltLev
760      * cost_averagesflags now returns year indices in addition to day, month
761      * sflux balance is performed on annual basis
762        (sflxumm, sfluxmm2, bal_sfluxmm)
763      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
764        including separate counting and multipliers
765    o pkg/rbcs
766      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
767    
768    checkpoint58k_post
769    o testreport:
770     - always build in dir. "build" (if not there, mkdir build instead of building
771       & running in input)
772     - run in dir run (if it exists), in build otherwise.
773     - call prepare_run (if input/prepare_run exists)
774     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
775    o pkg/exf modifications to interpolation and rotation routines for more
776       reasonable treatment of North Pole singularity: for tracers North Pole
777       value is set to northernmost zonal-mean value, for zonal velocity it is
778       set to zero, and for meridional velocity it is set to northernmost value.
779    o pkg/exf/exf_check_range.F
780     - add tile index to diagnostics and move stop statement to the very
781       end of the routine.
782    o pkg/diagnostics: (diagnostics_main_init.F)
783      define title of isomorphic variables according to the current config.
784    o pkg/thsice with pkg/seaice dynamics:
785    - fix domain of computation (interior only, required for exf) and do exchanges
786    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
787    o towards a standard way of dealing with multi-threading in MONITOR
788      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
789    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
790       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
791    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
792    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
793    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
794       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
795    o tracer advection:
796     - clean-up and simplify calc_common_factors.F
797     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
798       advection subroutine (but still not used within DST advection S/R)
799    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
800    
801    checkpoint58j_post
802    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
803      from file (collects calls previously in FORWARD_STEP)
804    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
805    o adjoint store dir. adjusted accordingly
806    o genmake2
807      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
808    
809    checkpoint58i_post
810    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
811      on wind stress (SEAICEstressFactor defaults to 1.)
812    o Total number of Timers is finite (<=40): comment out 2 non-essential one
813      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
814    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
815      on CS-grid: no longer loosing mass.
816    o exf & curvilinear-grid: no longer modify longitude xC & xG.
817    o pkg/ggl90: fix sloppy output and fix a bug
818    o pkg/seaice: added SEAICEuseEVPpickup parameter
819      - Set to false in order to start EVP solver with
820        non-EVP pickup files when using SEAICEuseEVP
821      - fix sign error in diffusion in seaice_calc_rhs
822    
823    checkpoint58h_post
824    * Modifications for bottom topography control
825      o replace hFacC by _hFacC at various places
826      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
827      o add non-self-adjoint cg2d_nsa
828      o update autodiff support routines
829      o re-initialise hfac after ctrl_depth_ini
830      o works for 5x5 box, doesnt work for global_ocean.90x40x15
831    * Adding verification for 5x5 box (4-layer) bottom topography control
832    
833    checkpoint58g_post
834    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
835       used for mean seasonal cycle, mean diurnal cycle); add an example
836       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
837    o pkg/ggl90:
838      - add parameter (minimum surface kinetic energy)
839      - fix bug (avoiding division by zero)
840    o couple pkg/thsice to pkg/seaice:
841      - modify advection in seaice to accomodate new scalar fields to be advected
842      - only muliDimAdection scheme work with seaice/thsice
843      - mapping of thsice-variables to seaice-variables, back and forth
844      - does not break the verification experiments, but does not give the
845        desired results either
846    o pkg/seaice
847      - make (default) second order advection a bit less confusing?
848    
849    checkpoint58f_post
850    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
851      to pkg/seaice):
852      - new routines thsice_map_exf and thsice_get_exf provide the interface
853      - add an additional formal parameter to thsice_solve4temp
854    o pkg/exf:
855      - add new fields wspeed, snowprecip (to be able to couple to thsice)
856      - correct Stefan-Boltzmann constant
857      - new parameter for longwave surface emittance
858      - separate some stuff from exf_bulkformulae into new routines  
859        exf_radiation, exf_wind
860      - add new parameters and constants: longwave emissivity for ocean, ice
861        and snow, evaporation parameters over ice
862      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
863        either wind from stress or stress from wind
864    o pkg/thSIce:
865    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
866    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
867       and THSICE_CALC_THICKN
868    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
869    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
870      to make debugging easier.
871    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
872    o pkg/bulk_force:
873      - clean-up comments and parameters ;
874      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
875    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
876      generate new output for test-experiment: aim.5l_cs.thSI
877    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
878      testreport accordingly
879    
880    checkpoint58e_post
881    o SEAICE_CGRID adjoint done
882    o R_STAR adjoint implemented.
883      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
884      * need to sort out init. of h0facc, etc.
885    o Make pkg/profile fully independent of ecco,cost, etc. stuff
886      to be able to use it in pure forward.
887    
888    checkpoint58d_post
889    o upgrade simple test-experiment to tutorial example:
890     step.1: duplicate the experiment and (step.2) will remove the old copy.
891      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
892      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
893      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
894      tutorial_global_oce_biogeo    <- copy of dic_example
895      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
896      tutorial_plume_on_slope       <- copy of plume_on_slope
897      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
898      tutorial_global_oce_optim     <- empty for now (David ?)
899      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
900     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
901    o correct a sign problem in cost_scat.F
902    o obcs and ptracers: fix boundary conditions for advections schemes
903      with larger stencil
904    o thsice adjoint: start
905    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
906      completeness
907    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
908      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
909    o ptracers adjoint:
910      * avoid extensive recomputatations
911      * fix missing re-init. of gptr (missed by TAF)
912    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
913      me to turn off the excessive output to STDOUT that this package produces
914    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
915      and add those terms in Vector-Invariant formulation.
916    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
917      if the control period (xx_hfluxperiod etc) is 0
918    o in profiles pkg, clean routines and fix details
919    o in ecco pkg, reading ssh data:
920      fix problem in case the model does not start at iter0=0
921    o fix mnc-pickup/restart for ptracers
922    o new package prifiles:
923      code to compute profile-based cost by Gael Forget
924      (modifs in ecco, ctrl, autodiff)
925    o Benign bug fix in initialization (spotted by M. Mazloff) of
926      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
927    
928    checkpoint58c_post
929    o adjoint: finish NLFS adjoint and provide reference output in
930      verification/global_ocean.90x40x15/results_ad_nlfs
931    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
932      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
933      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
934      with SEAICE_CGRID defined.
935    o move calendarDumps from "data" to "data.cal" and clean-up the code
936      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
937    o add useEXF & useCAL flags (for now, set in hard-coded way)
938    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
939      (were missing in NH mode, and wrong in quasihydrostatic mode).
940      waiting for Chris updated version of calc_gw to add those CALLs.
941    o fix bug in quasihydrostatic S/R ;
942      add a test for this option: global_ocean.90x40x15.qshyd
943    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
944      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
945    o add on/off flag useOffLine for package OFFLINE
946    o seaice:
947      - modify advection so that it works also on the C-grid
948      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
949        problem in multi-tile runs with C-grid
950      - add flags for clipping ice velocities and/or masking solver forcing
951      - fix drag (ocean on ice) formulation and a bug that caused noise in the
952        C-grid solver
953      - added a few comments to seaice_diffusion.F
954      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
955        are now exclusive)
956      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
957        required re-ordering the code a little:
958       + make DAIRN global variable (defined in SEAICE)
959       + move computation of the viscosities eta and zeta into a new separate
960         routine (because I need to recompute them in seaice_ocean_stress.F)
961    
962    checkpoint58b_post
963    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
964      update output.txt of exp. aim.5l_cs.thSI
965    o various mnc cleanups and improvements:
966      + shrink lookup tables by factor of ~4
967      + better error reporting when running out of lookup space
968      + able to handle longer path/file names (up to 500 chars)
969    o adjoint:
970      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
971      - TBD: "hidden" mom_vecinv recomp. in dynamics
972    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
973     (allow to differentiate between forcing components using new integer flags:
974      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
975     and add new flag to put Dissipation tendency out of Adams-Bashforth.
976    o ecco
977      - enable trend removal from SSH anomaly obs.
978    o adjoint
979      - a fix for PmEpR when #undef EXACT_CONSERV
980      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
981      - try to fix "hidden" recomp. in forward_step for NLFS
982        (NLFS seems broken sometimes after I checked it in)
983    o seaice:
984     - add c-grid version of the dynamic solver:
985       + three new routines that are the c-grid substitute lsr, dynsolver
986         and ostres
987       + put a few fields that were local to dynsolver into global common
988         blocks, so that I can move the computation of stresses etc into
989         seaice_lsr (saves coding but may break the adjoint).
990     - replace more hardwired parameters by runtime parameters
991     - add ice masks that mask the rhs of the implicit solvers where there
992       is no ice (commented out in seaice_dynsolver, because i am not sure
993       if this works properly), eventually this should replace the clipping
994       of ice velocities in seaice_dynsolver to +/-40cm/s.
995    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
996      include it only where its needed
997    o move balancing of fluxes before the call of external_forcing_surf
998    o seaice:
999      - correct units of turning angles (now they are really in degrees)
1000      - move computation of GWATX/Y out of main routine into dynsolver
1001      - initialize GWATX/Y in seaice_init
1002    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1003      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1004    o seaice: add runtime flags for turning angles (default to zero)
1005    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1006      and trend from exf forcing and ctrl control adjustments
1007    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1008      (since checkpoint57x_post)
1009    o change the default rotation period to 86164.s = the Earth rotation
1010    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1011      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1012    o seaice advection: add code for choosing between the default (2nd order
1013      central differences) and multiDim advection schemes provided by
1014      pkg/generic_advdiff
1015    o seaice:
1016      - removed all references to SEAICE_GRID.h fields from
1017        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1018        (cubed-sphere configuration will change a little)
1019      - grid computations in seaice_init are obsolete now.
1020      - cleaned up code a little so that is easier to read (hopefully).
1021      - added new (better?) discretizations of default advection and diffusion
1022        (turn on with SEAICEuseFluxForm)
1023      - replace 1 in 3d global fields by kSurface in growth.F
1024      
1025    checkpoint58a_post
1026    o seaice:
1027      - bug fix in advect.F
1028    o shelfice:
1029      - separate shelfice load anomaly from pload (breaks with time
1030        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1031        Its default is 0., but it may be computed more cleverly from (unknown)
1032        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1033        done offline. A good approximation of the pressure load anomaly is
1034        necessary to avoid large initial adjustment processes underneath
1035        deep-reaching shelfice.
1036      - small fix in ISOMIP shelfice_thermodynamics
1037      - add more sophisticated thermodynamics of Hellmer (1989), this is
1038        now the default
1039      - give a few constants more intuitive names
1040    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1041      if bulk formulae are used in long integration (especially EmPmR). Turn
1042      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1043      if balancePrintMean, the imbalance that is substracted is printed to
1044      STDOUT.
1045    o fix bug (typo) in obcs_apply_eta.F
1046    o add a new package shelfice which enables us to model the circulation
1047      underneath shelf-ice with draughts of hundreds of meters.
1048     - works
1049     - to do: + include improved thermodynamics
1050              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1051                instead of new field kTopC
1052              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1053                instead of new field R_shelfIce and new code in ini_depth.F
1054                and ini_mask_etc.F?
1055              + adjust vertical mixing schemes?
1056    o seaice pkg:
1057     - add a cpp-flag to include a simple formula for a salinity dependent
1058       freezing point of sea water at the surface
1059     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1060       meridional stresses are now different (and hopefully correct)
1061    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1062       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1063       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1064    o pkg/diagnostics: add options and parameters for regional-statistics
1065       diagnostics ; define regions by reading a region-mask from a file
1066       (might add other options later)
1067    o pkg/bulk_force:
1068     - add option and parameters to use AIM surface-flux formulae.
1069     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1070       others forcing fields (defined in PARM05, parameter file "data") are loaded
1071       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1072     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1073     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1074     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1075       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1076     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1077    
1078    checkpoint58
1079    o add "--embed-source" option to genmake2 which, when the supporting
1080      tools can be compiled (as determined by genmake2) will turn on the
1081      embed_files package which then embeds the entire MITgcm source code
1082      (*.[fFhc] + Makefile) used for the build within the executable
1083      - requested by CNH but off by default
1084      - adds a paltry <9MB to the mitgcmuv executable in most cases
1085      - only writes the output when useEMBEDSRC in eedata is true
1086    o clean up 3-dim. relaxation codes:
1087      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1088      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1089      * Thanks to Tom Haine for testing!
1090    
1091    checkpoint57z_post
1092    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1093      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1094    o fix the pickup behavior for obcs in combination with ptracers
1095    o fix a bug in ptracers_external_fields_load
1096    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1097      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1098    o transfered surface NH pressure to eta field (if exactConserv).
1099    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1100         and update lab_sea output.txt file.
1101    o completing 3-dim. relaxation code: additional term
1102         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1103      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1104      * At compile time, in "EXF_OPTIONS.h" set
1105          #define  ALLOW_CLIMTEMP_RELAXATION
1106          #define  ALLOW_CLIMSALT_RELAXATION
1107      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1108          tauThetaClimRelax3Dim = 15552000.0,
1109          tauSaltClimRelax3Dim  = 15552000.0,
1110      * 3 cases:
1111          1) Use a constant-in-time 3-dim. field
1112          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1113          3) Real-time relax. to time-evolving prescribed field
1114    o Adding Laplacian-type smoothness constraint on
1115      initial and boundary (forcing) controls (ic, bc)
1116      * enable at compile-time via
1117        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1118      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1119      * Absolute scale somewhat unclear so far
1120      * no area weighting was included since no other cost term does so far
1121    
1122    checkpoint57y_post
1123    First step for a NLFS adjoint
1124    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1125    o new init. routines for calc_r_star, calc_surf_dr
1126    o still need to deal with ini_masks_etc
1127    o testreport seemed happy
1128    checkpoint57y_pre
1129    
1130    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1131    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1132    o add new offset feature to offline pkg (plus minor cleanup)
1133    o cfc fixes for final year of integration
1134    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1135      be in GCHEM_OPTIONS).
1136    
1137    checkpoint57x_post
1138    o fix testreport Pb in multiple test experiment.
1139    o cleanup our namelist syntax in verification:
1140      - make it more F95 standards compliant (some work still needed)
1141      - allows the vast majority of our tests to work with gfortran
1142    o Non-Hydrostatic:
1143     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1144     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1145    o Allow to apply AB on T,S rather than on AB(gT,gS):
1146     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1147     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1148       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1149     - need a "clever" read_pickup to restart from the other AB formulation
1150    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1151    o remove some unused variables (reduces number of compiler warnings)
1152    o adjoint
1153      * Disable useVariableViscosity for adjoint for time being
1154        (there are a number of extensive recomputations)
1155      * Initialize certain variables needed for adjoint
1156    
1157    checkpoint57w_post
1158    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1159                 fix the singleCpuIO RS version of MDSWRITEFIELD
1160       and add a WARNING if using globalFiles=T with multi-processors.
1161    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1162      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1163    o tracer advection scheme:
1164      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1165       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1166       was not very convenient).
1167      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1168       (further tests needed for the implicit DST & Flux-Limiter schemes).
1169    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1170      and sRef for convenience, handy, when you want to initialize
1171      ptracers in a large domain with a constant non-zero value. Also,
1172      untangle ptracers_init.F a little.
1173    
1174    checkpoint57v_post
1175    o change dome exp. to use variable viscosity in side-drag terms.
1176    o remove all the files from the cfc_offline test since they are now
1177      incorporated into tutorial_cfc_offline which has been producing
1178      identical results for a few days of testing
1179    o add new parameter: sideDragFactor to enable half-slip-side BC
1180      and change side-drag S/R to use viscosity from mom_calc_visc
1181      (can switch back by setting sideDragFactor=0.); affects results at
1182      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1183       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1184    o vorticity & strain are now computed without masking, to account for
1185      no-slip-side BC in variable viscosity calculation ; mask is applied
1186      anyway later on, before computing advection/coriolis terms.
1187    o modify exp4 to test new obcs support for reading from external files
1188      and for passive tracers
1189    o fix behavior of ptracers_monitor when monitor output is written to a
1190      netcdf-file; still not independent of monitor.F (writes in the same
1191      file).
1192    o change default value of tRef (put a uniform, meaningful value for ocean
1193      & atmos) and initialize sRef (was missing, as Martin mentioned).
1194    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1195      to be proportional to enstrophy dissipation length.  Thus,
1196       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1197      This is now consistent with Smagorinsky and with the manual.
1198    
1199    checkpoint57u_post
1200    o OBCS and PTRACERS: add open boundary support for passive tracers
1201      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1202        OB-values from file; this is not different from the way theta and salinity
1203        are treated
1204      - however, Orlanski-radiation conditions are not supported, and the model
1205        will stop if you use pTracers and Orlanski at the same time.
1206      - beefed up the rountine obcs_external_fields_load: now only those open
1207        boundary values are overwritten with values from files for which there
1208        are really files, otherwise the OB-fields remain untouched. This makes
1209        it possible to use different OBs at different ends of the domain (as
1210        with EXF)
1211    o reduce number of exch calls in shap_filt (s2).
1212    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1213      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1214    
1215    checkpoint57t_post
1216    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1217    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1218      same truncation, independent of the face number: affects affects several
1219      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1220    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1221      note that biharmonic viscosity + no-slip was not tested in any experiment.
1222    o fix bug in non-linear free-surf side-drag ; generate new output for
1223      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1224    o make mnc honor the writeBinaryPrec flag for most kinds of output
1225    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1226    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1227      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1228    o add brackets in multi-terms sum to get same truncation, independent of
1229      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1230      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1231    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1232      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1233      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1234      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1235      Suggested values of viscosity parameters found in mom_calc_visc.
1236      Many new viscosity diagnostics available.
1237    
1238    checkpoint57s_post
1239    o Add clearing-house for viscosity calculations, mom_calc_visc and
1240      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1241      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1242      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1243      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1244      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1245      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1246      ViscAhStrain and viscAhTension are now retired.
1247    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1248    o In response to JMC's bug report, genmake2 now ignores any soft-links
1249      that it finds in the *current* directory when searching for files.
1250      Soft-links found in any other source directories will still work as
1251      they did before.
1252    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1253      a C routine to unlimit the stack size
1254    o mnc-ify pkg/aim snapshot vars
1255    o mnc-ify pkg/land as requested by Daniel
1256    o various changes to mnc including:
1257      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1258      - output can now be grouped so that all files within a group
1259          change the ITER portion of their names in lock-step together
1260      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1261          and works with both EXCH1 and EXCH2 (but needs more testing)
1262      - writing works for all verification test cases w/ g77 on Linux
1263    
1264    checkpoint57r_post
1265    o make MNC variable initialization happen earlier
1266    o add diagnostics for (almost) each term of the momentum Eq.
1267    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1268    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1269    o remove MINIMAL_TAVE_OUTPUT option ;
1270      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1271    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1272      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1273    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1274    o add time-dependent SST, SSS control
1275    o cost terms in ecco/ modularized (new cost_generic.F)
1276    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1277    o new infrastructure for seaice model vs. obs misfits in seaice/
1278      * driver from the_main_loop.F is seaice_cost_driver.F
1279      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1280      * gradient check in Exp. 6a of natl_box_adjoint/
1281    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1282      (see README file)
1283    
1284    checkpoint57q_post
1285    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1286    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1287      - bug was reported by Jean-Michel and Ian Fenty
1288    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1289      update exp. cpl_aim+ocn output.
1290    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1291      Needed for high-res. runs with large global files
1292      to be able to limit tapelev size
1293    o Changed some tests for adjoint:
1294      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1295      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1296      * global_ocean.90x40x15/ back to default 3-level checkpointing
1297    o Modifications to enable scripted COMMON to MODULE conversion
1298      * verification/OpenAD/code/ has necessary scripts and description;
1299      * converts, compiles and runs successfully;
1300    
1301    checkpoint57p_post
1302    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1303    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1304      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1305    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1306    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1307      (was already the case for dissipation with mom_vecinv,
1308       and also the case for grad.PhiHyd when staggered-timeStep)
1309      This will allow to put dissipation out-off the AB time-stepping.
1310     Unfortunately, affects truncation error. Update output of exp. that "fails"
1311      (cg2d matching number) and leave the others for later: front_relax(10),
1312      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1313      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1314    
1315    checkpoint57o_post
1316    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1317      (2) its ready to be documented during the 20050801 DocFest
1318    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1319      for ideal_2D_oce and lab_sea on linux_ia32_g77
1320    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1321      in global1x1_tot/code_seaice_adj to access indices 32, 33
1322      (worth another tag)
1323    
1324    checkpoint57n_post
1325    o adding precip control xx_precip 32
1326    o adding swflux control xx_swflux 33
1327    o Replacing 10 forcing penalty cost routines by 1 generic.
1328    o Implementing partitioning in time-mean and variable adjustment
1329      for atmos. state.
1330    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1331    o in natl_box_adjoint:
1332      * updated exp 1 to 10
1333        (but does not have time-mean vs. variable split results yet)
1334    o updated global1x1/*_seaice_adj/
1335      to incorporate latest changes
1336    o enable useSingleCpuIO for mdsio vector routines
1337      (applies in particular to tapelev I/O)
1338    o removed inefficient K-loop in all active_file*control*.F
1339    
1340    checkpoint57m_post
1341    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1342      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1343    o pkg/exch2: filling of face-corner halo regions is optional
1344      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1345    
1346    checkpoint57l_post
1347     tag before updating tutorials (pre-release-2)
1348    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1349       for output and interpolation of input fields onto model grid)
1350    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1351       Affects results of exp. rotating_tank ; update output.txt.
1352    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1353          and taking the square quantity and/or using a fraction-weight field.
1354    o fix aim_diagnostics_init.F mate numbers.
1355    o add mnc output capability to diagnostics/diagstat and update
1356      our cvsignore files for the ACSII output generated
1357    
1358    checkpoint57k_post
1359    o lab_sea now uses diagnostics package and provides a suite of
1360      new EXF diagnostics output.
1361    
1362    checkpoint57j_post
1363    o exf
1364      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1365        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1366        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1367      * extended diagnostics output
1368        - now includes all EXF variables
1369        - hs, hl moved to common block
1370        - separate S/R for diagnostics, called after ctrl vector is added
1371        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1372        - EXFqnet contains true Qnet (i.e. includes qsw)
1373      * updated verif. lab_sea, global_with_exf
1374      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1375        to ensure that diagnostics sees a true EXFqnet
1376    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1377    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1378      several times with different frequencies.
1379    o mnc-ify the thsice package as requested by Daniel Enderton
1380      - the monitor--MNC output needs work
1381      - many attributes need to be added (most are currently blank)
1382    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1383      - many attributes need to be added (most are currently blank)
1384    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1385    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1386    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1387      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1388         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1389    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1390     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1391    
1392    checkpoint57i_post
1393    o Diagnostics package was changed: diagnostic allocation is now deactivated
1394      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1395    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1396      add 1rst Order upwind vertical Shear.
1397    o add a quick fix for A/B checkpointing in OFFLINE mode
1398    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1399      end-run around the C/Fortran linking horror in eesup/src/timers.F
1400    o added pkg/runclock: allows user to terminate run based on wall clock
1401    o added non-hydrostatic scaling parameter: nh_am2
1402    o pkg/my82: futile attempt to make results compiler-independent by adding
1403      some "_d 0", etc. no effect.
1404    o for mnc output, fill the 'T' coordinate var with myTime and create a
1405      separate 'iter' variable for iteration count
1406    o pkg/diagnostics:
1407      add new capability: output of Global/Regional & per-level statistics ;
1408      tested against monitor output (including land & thSIce) on various exp.
1409    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1410    
1411    checkpoint57h_done
1412      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1413      data.diagnostics, data.gchem, data.ptracers) is done.
1414    
1415    o pkg/diagnostics: prepare for Global/Regional statistics.
1416      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1417    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1418      and rename it: DIFFERENT_MULTIPLE
1419    
1420    checkpoint57h_post
1421    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1422    o pkg/diagnostics: change output frequency, now in seconds (instead
1423      of Nb of iterations). This requires to change data.diagnostics.
1424    checkpoint57h_pre
1425    
1426    o in mnc, let the user create the output dir if both mnc_outdir_date
1427      and mnc_outdir_num are false
1428    o add fflags() to pkg/diagnostics which allows one to specify, on a
1429      per-file basis, the file precision [default behavior is unchanged]
1430    o added diagnostics to pkg/kpp, including computation of mixed layer
1431      depth based on a temperature/density criterion
1432    o updated verification/natl_box to test the new pkg/kpp diagnostics
1433    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1434    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1435    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1436      not mnc -- this mistake was found by JMC and is now corrected
1437    
1438    checkpoint57g_post
1439    o add Adams-Bashforth 3rd Order time stepping:
1440      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1441      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1442    checkpoint57g_pre
1443    
1444    o make lambda[Theta,Salt]ClimRelax spatially varying
1445      (default remains spatially uniform constant based on tau)
1446    o added new control variables
1447      * init. uVel, vVel, etanN
1448      * lambda[Theta,Salt]ClimRelax
1449    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1450      (suggested by G. Forget)
1451    
1452    checkpoint57f_post
1453    o add parameter "baseTime" = model base time = time at iteration zero
1454      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1455      account for baseTime shift
1456    o move Coriolis arrays from PARAMS.h to GRID.h
1457    checkpoint57f_pre
1458    
1459    o mnc-ifying the seaice package
1460    o introduced an alternative length scale calculation for use in the limiting
1461      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1462    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1463    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1464      as well as grad(vort3).  Made it compatible with both approximate form
1465      for the cubed sphere and full form of these gradients.  Added flag
1466      useFullLeith to select between approximate and full form.  
1467    o add "d0" in getcon.F to reduce differences between compilers/platforms
1468      update output.txt of exp. fizhi-gridalt-hs
1469    o change port_rand funtion to allow to set the seed.
1470    o fix obscure MNC bug involving conversion between reals and integers
1471      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1472        new version is now more standards-compliant
1473    o adjoint-related modifications
1474      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1475      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1476      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1477    
1478    checkpoint57e_post
1479    o Adding eddy stress controls a la Ferreira et al.
1480    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1481    
1482    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1483      update output.txt of exp. fizhi-gridalt-hs
1484    o add more "Z" dimensions and associated coordinate vars to MNC
1485    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1486    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1487      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1488      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1489      months and years.  Requires pkg/cal.
1490    o diagnostics: add pickup functionality
1491      - off by default for backwards compatibility
1492      - current version only uses MDSIO -- MNC will be added
1493    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1494    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1495    
1496    checkpoint57d_post
1497    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1498    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1499      output from the diagnostics package
1500    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1501    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1502      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1503    o add coordinate variables to the MNC output from the diagnostics package
1504    o change MNC-flags default value: true when useMNC=TRUE
1505    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1506      the ability (off by default) to read the grid information using MNC
1507    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1508    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1509    o do snap-shot diagnostics at the middle of the time-interval (instead of
1510      at the end).
1511    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1512      new test for AIM with thSIce + slab-ocean
1513    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1514    o move state variable diagnostics to the beginning of the time step ;
1515      (note: still needs some work specially for snap-shot diagnostics)
1516      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1517    
1518    checkpoint57c_post
1519    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1520    o generate new output.txt files on faulks with g77 & the new -ieee option
1521    checkpoint57c_pre
1522    
1523    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1524      update output.txt of exp. global_ocean.90x40x15
1525    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1526      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1527    o add saltFlux(+File) forcing capability with periodicExternalForcing
1528    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1529    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1530    o improvements for the MNC output from DIAGNOSTICS:
1531      - correct handling of the unlimitied dimension
1532      - all dims now have associated coordinate variables
1533      - variables located at U, V, and Corner ("Z") points are now written
1534        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1535        *all* data points are output
1536    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1537    o added pkg/seaice/seaice_monitor.F
1538    o mdsio_readfield.F can now read files visible only to master MPI process.
1539    o pkg/seaice: some test code for ice-modified ocean stress
1540    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1541      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1542      spurious negative numbers for precipitation and humidity.  Will cause
1543      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1544    o pkg/ctrl/
1545      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1546        May be enabled via doPackDiag
1547      *  introduce z-scaling of
1548         + gradient (doZscalePack) and
1549         + control (doZscaleUnpack)
1550    o pkg/mdsio/
1551      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1552      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1553    
1554    checkpoint57b_post
1555    o simplify options in diagnostics_fill arguments (remove weird combinations)
1556    o fix MNC coordinate variables so that they now contain per-face index
1557      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1558      general, EXCH2 grids are only aligned to a "local" coordinate system
1559    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1560    o Implement instantaneous output within pkg diagnostics:
1561      setting a negative frequency in data.diagnostics produces
1562     "snap-shot" output (as opposed to time-average if freq > 0)
1563    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1564      NOTE: change ptracer diagnostics name: use 2 characters to work with
1565            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1566    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1567      becomes the coordinate variable for the 'T' dimension
1568    o add CF-style coordinate variables to MNC
1569      - just a first cut:  numbers are meaningless on the cubesphere and
1570        missing along the T axis but otherwise it works!
1571    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1572    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1573    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1574      this is based directly on what the model compute, so that the content of
1575      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1576    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1577    o clean up build options files for SunOS, in particular
1578      - remove -traditional from xmakedepend
1579      - change -xarch=v9 to -xarch=native for f77
1580      - restore use of make (not gmake)
1581      - add CC=gcc if using g77
1582    o changes per discussion of AM, JMC, & EH3 today:
1583      - move redundant "grid" variables out of "state" -- in preparation of
1584        creating proper CF-style coordinate variables and in recognition
1585        that any/all grid variables can be easily copied (eg. w/NCO) from
1586        the grid files into any of the other NetCDF files
1587      - *always* output grid variables with MDSIO (this will eventually be
1588        changed)
1589      - output MNC grid file if useMNC is true
1590    o every instance of _END_MASTER() has been found and replaced with
1591      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1592      preprocessors
1593    o re-arrange diagnostics pkg initialisation:
1594     - allow each package to extend the available diagnostics list
1595     - add some checking and fix small problems (multi-threaded, ...)
1596     - new S/R diagnostics_fill (replace fill_diagnostics):
1597       look through the short list of active diag. (instead of the long list)
1598       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1599    
1600    checkpoint57a_post
1601    o this set of changes restores TAMC compatibility
1602      tested for global_ocean.90x40x15 adjoint on trough
1603      (what a pain)
1604    
1605    checkpoint57a_pre
1606    o some modifs in tools/build_options for sunos
1607    o call ctrl_pack for ctrl at end for optimcycle=0
1608    
1609    checkpoint57
1610    o add horizontal bi-harmonic viscosity for vertical velocity
1611      - new parameter viscA4W (defaults to viscA4)
1612      - affects only non-hydrostatic code
1613      - to be done: no-slip lateral boundary conditions
1614    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1615    o implement Implicit Vertical advection for pTracers
1616    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1617      (implemented also for implicit vertical diffusion & advection)
1618    o OBCS: extend application of tracer open boundary conditions
1619      to a strip beyond the boundary of width Olx/Oly
1620    o add call monitor to TAF set of required calls (flow directives)
1621      and include in natl_box_adjoint
1622    o untangle a few ifdefs related to cost, ctrl, autodiff
1623      untangel a few ALLOW_ECCO_OPTIMIZATION
1624    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1625      (theta2, salt2 in ecco_cost_weights)
1626    
1627    checkpoint56c_post
1628    o OBCS as control variables
1629      - update ctrl_ad_diff.list, obcs_ad_diff.list
1630      - remove balance of obcs controls from default
1631      - fix index bug nobcs in ctrl_init
1632      - fix dummy fields filen in ctrl_pack
1633      - add dummy weights for obcs
1634    o lsopt: comment out fort.94 output
1635    o optim:
1636      - remove unnecessary header files
1637      - adjusted namelists
1638      - add xerbla.F to Makefile
1639    o exf:
1640      - multiple modifications of exf_check_range
1641      - unit change in exf_init_runoff from [m/year] to [m/s]
1642    o mdsio:
1643      - i/o-vector change debugLevel from debLevA to debLevB
1644    
1645    checkpoint56b_post
1646    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1647      is called from DO_THE_MODEL_IO
1648      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1649      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1650      - clean up PTRACERS_WRITE_TIMEAVE a little
1651    o add another verification experiment that tests both the cfc-pkg and
1652      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1653      reactive tendencies treated inline with regular timestepping
1654    o testreport previously did a lousy job of comparing small numbers, so
1655      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1656      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1657      testreport.
1658    o ptracers_monitor: bug fix for MPI
1659    
1660    checkpoint56a_post
1661    o GCHEM: finish reorganizating the package
1662      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1663        (introduces another 3D-array for each passive tracer, but only if
1664        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1665        gchemTendency is not needed because the timestep is done separately)
1666      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1667      - GCHEM is now---more or less cleanly---separate from PTRACERS
1668      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1669        so clear to me how that should be done in a general way.
1670    o CFC: improve formatting of output in CFC_ATMOS
1671    o PTRACERS:
1672      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1673        that ALL experiments with ptracers enable can be checked. This makes
1674        GCHEM_MONITOR obsolete.
1675      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1676        monitorFreq
1677      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1678    o add PTRACERS (PTR0[1-5]) to testreport output
1679    o exf_check_range:
1680      * default changed to .TRUE.
1681      * will check values for niter0 if debLevA, every timestep if debLevB
1682      * STOP in exf_check_range if 'out of range'
1683      * range chosen generous to allow for potential extema
1684      TBD: a version with stricter range
1685           permitted range would be runtime parameters
1686  o GMredi:  o GMredi:
1687    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1688    - 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 1691  o GCHEM:
1691    - 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
1692      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1693    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1694      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1695        this flag is now only visible within GCHEM-pkg routines.
1696      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1697        be replaced by a 3D array that is computed before thermodynamics; for
1698        this, the tracer ID iTracer had to be included into the parameter list
1699        of ptracers_forcing
1700      - set up forward_step to call gchem_forcing, that will replace
1701        gchem_forcing_int in ptracers_forcing
1702      - cleaning up
1703  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
1704    
1705  checkpoint56  checkpoint56

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