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revision 1.232 by jmc, Wed Dec 31 20:29:54 2003 UTC revision 1.901 by dfer, Mon Oct 29 20:00:45 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/dic:
8      - add tons of "_d 0" (--> much better testreports !)
9       and then update outputs of tutorial_global_oce_biogeo
10    o pkg/mom_fluxform:
11      add a special version of momentum advection intended to conserve momentum
12      next to a bathymetry step or a coastline edge. (default = off = #undef)
13    o new read/write pickup version:
14      - for now, only implemented for main (mdsio) pickup file.
15      - write out only what is needed to restart; merge pickup_nh , pickup_ph
16        and main pickup together.
17      - read meta file; read only what is needed to restart; stop if a field
18        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
19        if it make sense (even if the restart is not perfect).
20      - if no meta file, assume that pickup to read corresponds exactly to
21        a pickup that would currently be written.
22      - read pickup written in the old format (until checkpoint59i) if it
23        recognizes an old meta file (no field-list).
24      - add a meta file in exp. which starts from a pickup: 2 cases:
25        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
26         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
27        b) a meta file describing the content of the associated pickup file
28         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
29    o pkg/mdsio & pkg/rw:
30      - new routine to read a meta file ; new set of routine to read
31        Multiple-fields file (with meta file).
32    o added open boundary conditions capability for seaice
33        HSNOW, HSALT, UICE, and VICE
34    
35    checkpoint59i
36    o adjoint:
37      * fix multiDimAdvection adjoint
38        (partial recomputation problem by TAF for fVerT(:,:,kDown)
39        and comlev1 size definition (maxpass vs. max. number of tracers)
40      * verification/global_ocean.90x45x15 adjoint now tests
41        NLFS and multiDimAdvection using DST3 (=30)
42      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
43    o pkg/kpp: add "_d 0" to real constant (if missing);
44      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
45      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
46    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
47      for internal parameters related to restart process (formerly from PARAMS.h)
48      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
49    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
50      as argument. (only atm2d & obcs write_pickup have not yet been updated)
51    o pkg/monitor:
52      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
53      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
54      - account for deep Atmosphere factor and density factor (anelastic)
55    o added open boundary conditions capability for seaice HEFF and AREA
56    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
57      thermodynamics
58      - requires a little reorganization, which affects the testreport results
59        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
60        so that now the conservative form is tested
61      - add a few comments
62    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
63    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
64    o add new diagnostics to seaice: advective, diffusive fluxes (only for
65      multidim-advection, for scheme 2 they are not filled) and transports,
66      thermodynamic growth rates
67    o change units of EmPmR (inside the code) from m/s to kg/m2/s (mass flux) but
68      leave input file unchanged. Affects results @ truncation level (cg2d match)
69      and update output of experiments: lab_sea(6), global_ocean.90x40x15(10),
70      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
71      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
72      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
73    
74    checkpoint59h
75    o pkg/exf:
76      - improve vectorization by moving if-statement out of loops in
77        exf_mapfields, exf_radiation
78      - exf_bulkformulae.F: introduce 2D fields and vectorize code
79    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
80    o testreport:
81      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
82        monitor & update offline_exf_seaice exp. output.
83      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
84    o pkg/seaice:
85      - bug fix in the evp solver: boundary conditions were affected be
86        masking of zMax/zMin (changes results)
87      - minor bug fix in boundary conditions in seaice_calc_strainrates
88        (changes results for no_slip)
89      - seaice_lsr.F: make interpolation of eta dependent on boundaries
90      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
91      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
92        stress formulation and no-slip boundary conditions
93    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
94      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
95    o pkg/seaice: a first HSALT time stepping equation has been checked in
96    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
97      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
98      without requiring DO-IF statements
99    o pkg/thsice:
100      use continuous power-law function for partition of energy between lateral
101      melting/freezing and thinning/thickening ; old code using step function
102      still available with #undef THSICE_FRACEN_POWERLAW
103      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
104    o testreport: change AD testing : check against results/output_adm.txt
105      using same scripts as for forward test.
106    
107    checkpoint59g
108    o adjoint testing: in preparation for changing testreport:
109      - output format: cost and grad written on separated lines
110      - ad output results in directory "results" (instead of "results_ad")
111    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
112    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
113    o pkg/ecco: allow user defined cost function contributions
114    o testreport:
115      Allow to choose (per experiment) the list of tested output variables
116       and the main variable (used to issue a pass/FAIL ) ;
117      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
118      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
119      Also modify printing of summary:
120       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
121       b) echo the list of tested variables in the individual summary.txt of
122          each experiment.
123    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
124      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
125      (but still depend on the tile decompostion of the domain).
126    o pkg/seaice: change a discretization detail to make the B-grid code
127      "more symmetric". This change is likely to remove all "ridges/leads" that
128      where quasi-aligned with the grid in B-grid solutions. It may also be
129      the solution to the stress coupling issues with the B-grid.
130    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
131      remove .cvsignore from input dir. (since testreport no longer run here).
132    o pkg/thsice:
133     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
134     - fix reshaping of sea-ice just after advection:
135       melt all the ice only if ice-volume is too small.
136     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
137       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
138     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
139    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
140      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
141    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
142      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
143      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
144      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
145      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
146      -> update output.txt
147    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
148     this affects truncation error: -> update output.txt of exp:
149      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
150      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
151    
152    checkpoint59f
153    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
154    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
155      a bounded range (in forward mode)
156    o pkg/ecco, ctrl, autodiff and mom_common:
157     internal parameter controls, completements of implementations
158    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
159    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
160      (not seem any difference in testing results).
161    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
162       at face corners.
163    o pkg/generic_advdiff:
164     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
165      loop range indices for computing vertical advection tendency
166      and do the calculation in the interior only (no overlap) ;
167      for now, only implemented for SOM advection (to save CPU time).
168     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
169    o exch2 adjoint
170      First set of changes:
171      - add exch2 hand-written adjoint templates
172      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
173        This will require cleanup in pkg/autodiff/*.F
174        (changed routines currently kept separate in verif. code/)
175      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
176        that used to hide exch2 or cubed-sphere specific code
177        (commented via 'cph-exch2')
178    o pkg/seaice
179      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
180    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
181       output of global_ocean.cs32x15.thsice .
182    
183    checkpoint59e
184    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
185      for B-grid vector (not yet tested) and C-grid vector (<- only used
186      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
187    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
188      (#ifdef ALLOW_SALT_PLUME)
189    o gather_2d/scatter_2d: removed halo regions
190    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
191      scheme and the corresponding test case (under front_relax dir). For now,
192      only available with Skew-flux form and not yet tested in realistic set-up.
193      adjoint: store directives updated, but gradient checks deteriorated,
194      so maybe GM/Redi adjoint is now broken.
195    o seaice adjoint
196      * add AREA, HEFF, HSNOW as control variable
197        (should not change lab_sea results)
198      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
199    o pkg/seaice:
200      * added computation of saltFlux in seaice_growth;
201        For time being, sea ice salinity is assumed constant
202        contribution of snow flooding to freshening of sea ice is neglected.
203        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
204        defaults to 0.0 in order to maintain backward compatibility.
205        Typical values for SEAICE_salinity are 4 to 10 g/kg.
206      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
207      * added SEAICE_availHeatFrac, which specifies fraction of surface level
208        heat content used to melt or grow ice
209      * commented out cap of HICE: it helps keep ice thinner
210      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
211      * applied OBCS T/S mask to HEFFM sea ice mask
212    
213    checkpoint59d
214    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
215     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
216     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
217    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
218     and change default value of parameter "GM_Small_Number";
219     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
220       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
221       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
222    o pkg/ecco: cost function when applying pkg/smooth to controls
223    o pkg/ctrl: add forcingPrecond run time parameter
224    o pkg/seaice:
225     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
226     - fix bug in metric terms of u-equation in LSR solver (implicit part),
227       changes verification/lab_sea
228     - rearrange implicit part of u-equation in LSR solver to make it easier to
229       read, understand, and debug. This causes changes at the truncation level.
230     - fix (serious) bug in the boundary conditions (sign error in the implicit
231       part) of the LSR solver. Changes all LSR results.
232     - fixed problem with HSNOW initialization to avoid thick snow when AREA
233       is initilized with small values - does not change lab_sea results.
234     - added HsnowFile initialization capability
235    o pkg/smooth: addition to model/src and pkg/ctrl so allow
236     initialization of pkg/smooth and application to control vector
237    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
238    o dependencies: pkg/profiles requires pkg/cal
239    o pkg/profiles:
240     - added option ALLOW_PROFILES_GENERICGRID
241         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
242         that interpolation information (grid points and coefficients) is provided
243         within the netcdf input files.
244         -> sample matlab scripts can be found in MITgcm_contrib/gael
245         that allow you to prepare netcdf input files.
246     - also modified: cleaner include statements, cleaner error print statements,
247       cleaner stops when error, and more tests of the netcdf input files consistency.
248    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
249    o pkg/seaice:
250     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
251       requires a new routine: seaice_diagnostics_fill.F
252     - make sure that seaice does not move if not forced (pressure replacement
253       method, Hibler and Ip, 1995), changes results
254     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
255     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
256       It is turned off by default (=-1.), because it changes the results.
257     - make it possible to read AREA from a file, too.
258    
259    checkpoint59c
260    o add S/R and diagnostics for oceanic mixed-layer depth
261    o move GMRedi call after all vertical mixing schemes (including KPP)
262    o pkg/thsice:
263     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
264      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
265    o pkg/obcs:
266     - bug fix for balance code
267    o pkg/seaice:
268      - allow values of SEAICE_elasticParm > 1
269      - add new parameter SEAICE_evpTauRelax as an alternative
270        to SEAICE_elasticParm
271      - make lsr boundary conditions free slip (by default), changes result
272      - add code for no slip boundary conditions for lsr
273      - set minimum of zeta to zero (and not 4e8) (changes results)
274      - add a cap on AREA after advecting AREA if seaice_growth is not called
275    o change calculation of Visbeck K:
276      - no longer depend on tapering scheme; instead, compute slope (limited
277        by GM_maxSlope). this is equivalent to what was comuted before with
278        clipping or linear tappering.
279      - fix vertical averaging (wrong by 1/2 level)
280      - leave the old version (but will not be maintained) within
281        #ifdef OLD_VISBECK_CALC / #endif
282      - update output of exp. ideal_2D_oce
283    o change error catch in calc_r_star to improve vectorization
284    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
285      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
286    o adjoint:
287      Re-organized adjoint checkpointing according to Matt Mazloff
288      (but with modifs/completions/cleanups)
289      Storing is now bundled into large arrays to optimized I/O
290      (and second step in cleanup of the_main_loop)
291    
292    checkpoint59b
293    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
294      - export/import (between ocean & coupler) fields needed for ocean DIC.
295    o pkg/seaice:
296      - get rid of three more exchanges seaice_calc_viscosities (required
297        different loop boundaries in seaice_lsr and seaice_ocean_stress)
298      - bug fix in seaice_ocean_stress (update of lab_sea required)
299      - reduce loop boundaries to necessary minimum also in seaice_evp
300      - go back to the old way of computing deltaC/Z as the adjoint likes that
301        better
302    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
303      passive tracer to an Age Tracer) + update output.txt
304    o pkg/exf:
305      - implement A-grid / C-grid selection for wind-stress input files.
306      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
307      for now, in exf_bulk_largeyeager04.F only :
308      - change implementation for case where windspeed + 2. components wind-stress
309        are read-in. AND use rhoConstFresh to convert evap.
310    o pkg/seaice:
311      - use correct EXCH_UV for wind-forcing (on A-grid).
312      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
313        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
314    o pkg/exf:
315      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
316      EXF_INTERPOLATION:
317      - merge global_with_exf/code version of exf_interp_read.F
318        to the main code ;
319      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
320        reading the file ; Important: This options needs to be defined to recover
321        previous code.
322        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
323      - no longer loose real*8 precision along the way when using exf_iprec=64.
324    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
325      - change discretisation of evp-solver in order to avoid another exchange
326        (changes lab_sea) and clean up a little
327      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
328        help the adjoint (this also changes the results slightly)
329      - add a few "_d 0" where they had been missing in seaice_evp.F
330      - cleaning up: remove unused seaice_calc_rhs.F
331    o pkg/exf: some cleaning-up:
332      - change various "constants" into runtime parameters
333      - cleaned-up Large&Yeager04 routine which should eventually
334        replace exf_bulkformulae.F (changed names of S/R and CPP)
335        and merged various ALLOW_ATM_WIND options
336     only used with thsice pkg (in thsice_get_exf.F):
337      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
338        which are used when useStabilityFct_overIce=TRUE (= the default)
339      - change default values of ice & snow emissivity and scale downward LW
340        by ice & snow emissivity.
341    o pkg/thsice:
342     fix few little problems, in thsice_calc_thickn.F:
343      - growth vertically (and not laterally) if iceFrac == iceMaskMax
344      - melt only laterally if hIce < hThinIce (as the comments say)
345      and in thsice_extend.F:
346      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
347      - start to form ice as soon as the minimum ice-volume is reachable.
348     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
349      and cpl_aim+ocn
350    o pkg/kpp
351     - move computation of surface related input fields to KPP into a new
352       subroutine kpp_forcing_surf.F
353     - remove wrong (within bi,bj loops) EXCH calls.
354     - little cleaning (add argument myThid in last position, cvs header ...)
355     - for now, fix conservation problem by exchanging KPPviscAz (may not
356       be the best fix)
357    o pkg/seaice
358     - check for inconsistent evp parameter/cpp-flag combination
359     - remove leftover errIO flat for obsolete name list error handling
360    o OpenAD
361     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
362    
363    checkpoint59a
364    o pkg/seaice: some parameter clarifications and a little bit of clean up
365    o pkg/thsice: rename run-time parameters:
366       himin       -> hIceMin
367       himin0      -> hThinIce
368       hihig       -> hThickIce
369       i0          -> i0swFrac
370       transCoef   -> bMeltCoef
371       frac_energy -> fracMelting
372      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
373       with default values (for now) that do not change the results.
374      remove old version of thsice vars advection in pkg/seaice.
375    o in FFIELDS.h:
376      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
377      - make pLoad & sIceLoad always available (but still only used if
378         ATMOSPHERIC_LOADING is #define).
379    o pkg/kpp: replaced _KPP_RL with _RL
380    o bug fixes for vertical diffusivity computations when both KPP and
381        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
382        are no longer updating the vertical diffusivity array
383        (passed as argument) but are (re-) setting those arrays.
384    o pkg/seaice: fix bug in evp solver, while doing that
385      - change (improve?) discretization of stress computations for both
386        cgrid-lsr and evp solver
387      - add a new routine to compute strain rates
388      - the above changes lab_sea results
389      - add no slip conditions for evp solver (off by default), lsr-version
390        may follow
391      - fix exchange for shear at Z-points (does not change lab_sea)
392      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
393        (to force the user to pick a time step since there is not "safe" way
394        of choosing it)
395      - add principal stress diagnostics
396      - rearrange fields for evp a little to avoid having to call a: too many
397        exchanges and b: exchanges for stress trensor components which we do
398        not have.
399      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
400        of evp, complete rewrite for lsr case (latter is does not yet work
401        in all cases)
402    o pkg/kpp: add code to have mixing in shelf ice caverns
403      - add myThid to all kpp routines (long overdue)
404    
405    checkpoint59
406    o pkg/exf:
407      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
408        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
409      - move exf header files from lower_case.h to UPPER_CASE.h ;
410        add missing cvs Header & Name
411      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
412      - add namelist param. selectStressGridPosition, exf_monFreq
413      - retire many _CLIM routines, and remove data.exf_clim
414        + params moved to data.exf
415        + climsst, climsss now handled by exf_set_gen, i.e.
416          climss?period=0 refers to constant field,
417          climss?period=-12 to monthly forcing
418      - split up namelists in data.exf
419    o pkg/seaice:
420      - remove seaice_exch and seaice_exch_uv
421      - remove superfluous exchange of theta
422      - add myThid to seaice_budget_ocean/ice
423      - add new interface for atmospheric wind forcing (C-grid only)
424        + new routine
425        + two new field (taux, tauy for stress over ice)
426        + removed one global field (DAIRN) for C-grid case only
427    o pkg/thsise
428      - 2nd set of modifs for thsice adjoint in conjunction with exf
429    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
430    
431    checkpoint58y_post
432    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
433      vertical diffusivity, similar to that in MOM4; turned on using
434      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
435      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
436    o Added capability for 3D specification of background vertical diffusion
437      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
438      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
439      "data" file that contains the 3D vertical diffusivity coefficients.
440    o ice dynamics (pkg/seaice) with thsice thermodynamics:
441      - add code within pkg thsice to advect & diffuse sea-ice fields
442      similar to (and will replace) what has been added in  seaice_advdiff.F,
443      but: - conserving Mass, Heat & Salt.
444           - better when using non-linear advection scheme (not yet fully tested)
445           - can also be used in atmospheric set-up (for now, only the diffusion).
446    
447    checkpoint58x_post
448    o IO option for global-file compact format:
449      - add options when generating topology (utils/exch2/matlab-topology-generator)
450      - add I/O capability (pkg/mdsio).
451      - adapt utils/matlab/rdmds.m to read this format.
452      for now long-line format not yet supported by pkg/mdsio (& exch2).
453    o shelfice: add a few diagnostics
454    
455    checkpoint58w_post
456    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
457      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
458      (and replace horiVertRatio in NH code).
459      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
460                         and tutorial_plume_on_slope (sensitive to truncation)
461    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
462      directly to drive seaice model (C-grid only)
463    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
464     - reintroduce computation of wind from stress,
465     - compute tau (in exf_bulkformulae.F) from windstress averaged to
466       mass points to avoid tau = 0
467     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
468    o rdmnc.m: make it work with "global" files created with gluemnc
469    o rdmnc.m : some improvements in dealing with singleton dimension
470      (tested on all testreport mnc output files).
471    o genmake2: disable pkg/profiles if netcdf test fails.
472    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
473    o move call to cal_readparms up to make calendar parameters/variable available
474      to all packages
475    
476    checkpoint58v_post
477    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
478      useDynP_inEos_Zc tested.
479    o pkg/exf: changes to properly interpolate/mask/scale initial fields
480    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
481      and portions thereof.  See read_cs.txt for description and examples.
482    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
483      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
484      following the great-circle arc between those 2 points.
485    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
486      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
487    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
488     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
489     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
490     - still needs work (not working with some options ; efficiency to improve)
491       and serious testing.
492     - use this scheme for temperature & salinity in 2 advection test exp.:
493       advect_xy & advect_xz, respectively.
494    
495    checkpoint58u_post
496    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
497    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
498    o testreport: add option "-skipdir" to skip some test.
499    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
500      momentum calculation.
501    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
502    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
503      remove checkpoint.F and the_correction_step.F (no longer used);
504      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
505    o add option (linFSConserveTr) to correct for tracer source/sink due to
506      Linear Free surface
507    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
508    o pkg/thsice: fix reading mnc-pickups
509    
510    checkpoint58t_post
511    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
512    o pkg/mdsio:
513     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
514       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
515       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
516     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
517     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
518       either MDS_READ_FIELD or MDS_WRITE_FIELD )
519     - new S/R (to replace MDSWRITEMETA), which allows to write more
520       informations (variable names, time ...) to meta files.
521     - modify rdmds.m to give back the meta file content.
522    o pkg/diagnostics: change vertical interpolation to be safer, and more
523       flexible (define p-levels to interpolate to in data.diagnostics);
524      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
525       diagnostic pointer.
526    o pkg/seaice: more cleaning up of seaice_growth, added many comments
527    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
528    o fix multi-category seaice:
529     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
530       SEAICE_MULTICATEGORY
531     - fix short wave heat flux
532    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
533       and allow to use EVP solver. Change forward lab_sea: test both EVP
534       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
535    o Initial check-in of lab_sea adjoint
536      (very similar to natl_box_adjoint/code_seaice)
537      * used C-grid and EVP solver
538      * used KPP, GM/Redi
539      * uses inAdExact=.TRUE.
540      * gradient checks fail for both ADM and TLM
541        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
542        f.d. gradients actually seem more problematic than ADM, TLM gradients;
543        issue is related to forward mismatch between g77 an ifort
544    o pkg/seaice: overhaul of thermodynamics
545     - growth.F and groatb.F are replaced by new routine seaice_growth.F
546     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
547     - move a few global fields out of SEAICE.h into seaice_growth.F and
548       make them 2D (FICE/QNETO/ ...)
549     - remove FO (it is the same as QNETO)
550     - introduce a few local fields to avoid modifying external fields such
551       as atemp, etc.
552    
553    checkpoint58s_post
554    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
555      changed exf_set_gen.F so that
556        genperiod=0 means input file is one time-constant field and
557        genperiod=-12 means input file contains 12 monthly means
558    o CG2D: use pre-computed solver main-diagonal (stored in common block);
559      this affects truncation error ; generate new output file for exp. which
560      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
561        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
562        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
563        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
564        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
565        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
566    o start implementation of deep-atmosphere and anelastic formulation
567    o verification: remove 2nd copy of input files and use script "prepare_run"
568      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
569    o mom_common/vecinv/fluxform: fix a few initialisation isssues
570    o profiles: fix for multithreaded case
571    
572    o diagnostics: rename few diags:
573      s/'PRESSURE'/'RCENTER '/g
574      s/'TICE    '/'oceFreez'/g
575      s/'TAUX    '/'oceTAUX '/g
576      s/'TAUY    '/'oceTAUY '/g
577      s/'SWFLUX  '/'oceQsw  '/g
578      s/DIFx/DFxE/g
579      s/DIFy/DFyE/g
580      and add few ocean-forcing diagnostics:
581      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
582    o modifications to pkg/seaice/growth.F and budget.F, which change results of
583      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
584      as actual snow thickness.  It now refers everywhere to effective snow
585      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
586    
587    checkpoint58r_post
588    o modifications to pkg/seaice/growth.F, which change results of
589      lab_sea experiment: fixes pertain to melting snow over open water, to
590      masking EVAP under sea ice, and to using the correct AREA variable for
591      computations of EVAP, PRECIP, HSNOW, and GHEFF
592    o add ability to read bathy, salt, and theta using MNC (off by def)
593    o add flooding algorithm and advection of HSNOW for pkg/seaice;
594      both are turned off by default and do no change any results
595    o seaice advection with pkg/thsice: a step toward the use of non-linear
596      advection scheme, but #ifdef or commented out for now (requires more EXCH).
597    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
598      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
599      in natl_box (affects results @ truncation level: update output.txt)
600    o multi-threading and IO:
601      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
602      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
603        (needed to work with SingleCpuIO): tested in all verif. exp.
604    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
605      affects the results (but none of the verification test uses this scheme).
606    o Adding some pkg/diagnostics capability to pkg/seaice
607      (will certainly be subject to changes)
608    o ctrl: adding new control variables:
609      lwflux, lwdown, evap, snowprecip, apressure, runoff
610    
611    checkpoint58q_post
612    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
613      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
614      high_res_cube configuration by 4% on Columbia.
615    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
616      add (in global_with_exf/code) a version of EXF_INTERP_READ without
617      dynamical allocation (seems to work in multi-threaded).
618    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
619      single CPU io) so that TAF does not have to see EESUPPORT.h
620    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
621    
622    checkpoint58p_post
623    o obcs: stop if obcs is used with useCDscheme = .true.
624    o shelfice:
625     - fix a sign error so that no slip at shelfice interface works
626     - remove stop for combination non-hydrostatic code and shelfice. That does
627       not mean, that the results are correct, but at least they are numerically
628       stable
629    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
630    o added adjoint exch routined for all exch*3d* routines
631      and updated flow directives
632    
633    checkpoint58o_post
634    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
635      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
636    o change controling S/R for writing pickup file (new S/R do_write_pickup)
637      and clean-up reading/writing of pickup files.
638    o fix local version of read/write pickup (NH part) in rotating_tank/code
639    o simplify EXCH interface:
640     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
641     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
642    o added the regrid package
643    o shelfice:
644     - add a simple boundary layer scheme to reduce noise
645     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
646    
647    checkpoint58n_post
648    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
649       local variable (not in common block).
650    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
651      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
652      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
653        to work with SingleCpuIO.
654    o add "_d 0" to real constant of pkg/cfc subroutines ;
655       update exp. cfc_exemple & tutorial_cfc_offline output files.
656    o multi-threading and IO:
657      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
658        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
659      - barrier before and after reading.
660      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
661      - avoid using MDS_WRITELOCAL for LAND pkg output.
662      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
663        common-block variables ; Allows multi-threading with master-thread IO.
664    o change default MAX_NO_THREADS from 32 to 4 ;
665      and stop cleanly when MAX_NO_THREADS is too small.
666    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
667    
668    checkpoint58m_post
669    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
670       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
671    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
672       keep global_ocean.90x40x15 (for AD testing) with former secondary test
673       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
674    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
675        add MITgcm_tutorials (= code + all the tutorials)
676    o ecco, option to compute cost for total ssh (mean+anom)
677    o consistent with addition of ptracer and ssh in pkg/profiles
678    o profiles: adding ptracer and ssh
679    o testreport: change multi-test output-file name
680      (from output.txt.{name} to output.{name}.txt)
681    o profiles: now ok for mutli-tiles case
682    o seaice: add 4 parameters for different advection schemes for area,
683      (effective) seaice thickness, enthalphy, and snow height. Their default
684      is the standard parameter SEAICEadvScheme
685    o calc_gw:
686     - add cosFacU in zonal viscous flux (harmonic.visc.).
687     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
688       of tutorial_plume_on_slope.
689    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
690    o calc_gw: true flux-form, account for horizontal grid spacing.
691      update rotating_tank results, but not plume_on_slope (affected at
692      truncation level, 11 digits).
693    
694    checkpoint58l_post
695    o calc_gw:
696     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
697     - remove side-drag for now (need to fix it); update plume_on_slope results.
698     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
699    o commit code to make SST/SSS weights spatially variable
700      (based on either variable in-situ or variable initial T/S weights)
701    o pkg/ecco:
702      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
703        now based on horizontally varying weights wthetaLev, wsaltLev
704      * cost_averagesflags now returns year indices in addition to day, month
705      * sflux balance is performed on annual basis
706        (sflxumm, sfluxmm2, bal_sfluxmm)
707      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
708        including separate counting and multipliers
709    o pkg/rbcs
710      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
711    
712    checkpoint58k_post
713    o testreport:
714     - always build in dir. "build" (if not there, mkdir build instead of building
715       & running in input)
716     - run in dir run (if it exists), in build otherwise.
717     - call prepare_run (if input/prepare_run exists)
718     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
719    o pkg/exf modifications to interpolation and rotation routines for more
720       reasonable treatment of North Pole singularity: for tracers North Pole
721       value is set to northernmost zonal-mean value, for zonal velocity it is
722       set to zero, and for meridional velocity it is set to northernmost value.
723    o pkg/exf/exf_check_range.F
724     - add tile index to diagnostics and move stop statement to the very
725       end of the routine.
726    o pkg/diagnostics: (diagnostics_main_init.F)
727      define title of isomorphic variables according to the current config.
728    o pkg/thsice with pkg/seaice dynamics:
729    - fix domain of computation (interior only, required for exf) and do exchanges
730    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
731    o towards a standard way of dealing with multi-threading in MONITOR
732      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
733    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
734       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
735    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
736    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
737    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
738       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
739    o tracer advection:
740     - clean-up and simplify calc_common_factors.F
741     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
742       advection subroutine (but still not used within DST advection S/R)
743    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
744    
745    checkpoint58j_post
746    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
747      from file (collects calls previously in FORWARD_STEP)
748    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
749    o adjoint store dir. adjusted accordingly
750    o genmake2
751      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
752    
753    checkpoint58i_post
754    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
755      on wind stress (SEAICEstressFactor defaults to 1.)
756    o Total number of Timers is finite (<=40): comment out 2 non-essential one
757      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
758    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
759      on CS-grid: no longer loosing mass.
760    o exf & curvilinear-grid: no longer modify longitude xC & xG.
761    o pkg/ggl90: fix sloppy output and fix a bug
762    o pkg/seaice: added SEAICEuseEVPpickup parameter
763      - Set to false in order to start EVP solver with
764        non-EVP pickup files when using SEAICEuseEVP
765      - fix sign error in diffusion in seaice_calc_rhs
766    
767    checkpoint58h_post
768    * Modifications for bottom topography control
769      o replace hFacC by _hFacC at various places
770      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
771      o add non-self-adjoint cg2d_nsa
772      o update autodiff support routines
773      o re-initialise hfac after ctrl_depth_ini
774      o works for 5x5 box, doesnt work for global_ocean.90x40x15
775    * Adding verification for 5x5 box (4-layer) bottom topography control
776    
777    checkpoint58g_post
778    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
779       used for mean seasonal cycle, mean diurnal cycle); add an example
780       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
781    o pkg/ggl90:
782      - add parameter (minimum surface kinetic energy)
783      - fix bug (avoiding division by zero)
784    o couple pkg/thsice to pkg/seaice:
785      - modify advection in seaice to accomodate new scalar fields to be advected
786      - only muliDimAdection scheme work with seaice/thsice
787      - mapping of thsice-variables to seaice-variables, back and forth
788      - does not break the verification experiments, but does not give the
789        desired results either
790    o pkg/seaice
791      - make (default) second order advection a bit less confusing?
792    
793    checkpoint58f_post
794    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
795      to pkg/seaice):
796      - new routines thsice_map_exf and thsice_get_exf provide the interface
797      - add an additional formal parameter to thsice_solve4temp
798    o pkg/exf:
799      - add new fields wspeed, snowprecip (to be able to couple to thsice)
800      - correct Stefan-Boltzmann constant
801      - new parameter for longwave surface emittance
802      - separate some stuff from exf_bulkformulae into new routines  
803        exf_radiation, exf_wind
804      - add new parameters and constants: longwave emissivity for ocean, ice
805        and snow, evaporation parameters over ice
806      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
807        either wind from stress or stress from wind
808    o pkg/thSIce:
809    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
810    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
811       and THSICE_CALC_THICKN
812    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
813    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
814      to make debugging easier.
815    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
816    o pkg/bulk_force:
817      - clean-up comments and parameters ;
818      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
819    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
820      generate new output for test-experiment: aim.5l_cs.thSI
821    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
822      testreport accordingly
823    
824    checkpoint58e_post
825    o SEAICE_CGRID adjoint done
826    o R_STAR adjoint implemented.
827      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
828      * need to sort out init. of h0facc, etc.
829    o Make pkg/profile fully independent of ecco,cost, etc. stuff
830      to be able to use it in pure forward.
831    
832    checkpoint58d_post
833    o upgrade simple test-experiment to tutorial example:
834     step.1: duplicate the experiment and (step.2) will remove the old copy.
835      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
836      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
837      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
838      tutorial_global_oce_biogeo    <- copy of dic_example
839      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
840      tutorial_plume_on_slope       <- copy of plume_on_slope
841      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
842      tutorial_global_oce_optim     <- empty for now (David ?)
843      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
844     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
845    o correct a sign problem in cost_scat.F
846    o obcs and ptracers: fix boundary conditions for advections schemes
847      with larger stencil
848    o thsice adjoint: start
849    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
850      completeness
851    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
852      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
853    o ptracers adjoint:
854      * avoid extensive recomputatations
855      * fix missing re-init. of gptr (missed by TAF)
856    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
857      me to turn off the excessive output to STDOUT that this package produces
858    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
859      and add those terms in Vector-Invariant formulation.
860    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
861      if the control period (xx_hfluxperiod etc) is 0
862    o in profiles pkg, clean routines and fix details
863    o in ecco pkg, reading ssh data:
864      fix problem in case the model does not start at iter0=0
865    o fix mnc-pickup/restart for ptracers
866    o new package prifiles:
867      code to compute profile-based cost by Gael Forget
868      (modifs in ecco, ctrl, autodiff)
869    o Benign bug fix in initialization (spotted by M. Mazloff) of
870      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
871    
872    checkpoint58c_post
873    o adjoint: finish NLFS adjoint and provide reference output in
874      verification/global_ocean.90x40x15/results_ad_nlfs
875    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
876      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
877      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
878      with SEAICE_CGRID defined.
879    o move calendarDumps from "data" to "data.cal" and clean-up the code
880      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
881    o add useEXF & useCAL flags (for now, set in hard-coded way)
882    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
883      (were missing in NH mode, and wrong in quasihydrostatic mode).
884      waiting for Chris updated version of calc_gw to add those CALLs.
885    o fix bug in quasihydrostatic S/R ;
886      add a test for this option: global_ocean.90x40x15.qshyd
887    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
888      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
889    o add on/off flag useOffLine for package OFFLINE
890    o seaice:
891      - modify advection so that it works also on the C-grid
892      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
893        problem in multi-tile runs with C-grid
894      - add flags for clipping ice velocities and/or masking solver forcing
895      - fix drag (ocean on ice) formulation and a bug that caused noise in the
896        C-grid solver
897      - added a few comments to seaice_diffusion.F
898      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
899        are now exclusive)
900      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
901        required re-ordering the code a little:
902       + make DAIRN global variable (defined in SEAICE)
903       + move computation of the viscosities eta and zeta into a new separate
904         routine (because I need to recompute them in seaice_ocean_stress.F)
905    
906    checkpoint58b_post
907    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
908      update output.txt of exp. aim.5l_cs.thSI
909    o various mnc cleanups and improvements:
910      + shrink lookup tables by factor of ~4
911      + better error reporting when running out of lookup space
912      + able to handle longer path/file names (up to 500 chars)
913    o adjoint:
914      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
915      - TBD: "hidden" mom_vecinv recomp. in dynamics
916    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
917     (allow to differentiate between forcing components using new integer flags:
918      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
919     and add new flag to put Dissipation tendency out of Adams-Bashforth.
920    o ecco
921      - enable trend removal from SSH anomaly obs.
922    o adjoint
923      - a fix for PmEpR when #undef EXACT_CONSERV
924      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
925      - try to fix "hidden" recomp. in forward_step for NLFS
926        (NLFS seems broken sometimes after I checked it in)
927    o seaice:
928     - add c-grid version of the dynamic solver:
929       + three new routines that are the c-grid substitute lsr, dynsolver
930         and ostres
931       + put a few fields that were local to dynsolver into global common
932         blocks, so that I can move the computation of stresses etc into
933         seaice_lsr (saves coding but may break the adjoint).
934     - replace more hardwired parameters by runtime parameters
935     - add ice masks that mask the rhs of the implicit solvers where there
936       is no ice (commented out in seaice_dynsolver, because i am not sure
937       if this works properly), eventually this should replace the clipping
938       of ice velocities in seaice_dynsolver to +/-40cm/s.
939    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
940      include it only where its needed
941    o move balancing of fluxes before the call of external_forcing_surf
942    o seaice:
943      - correct units of turning angles (now they are really in degrees)
944      - move computation of GWATX/Y out of main routine into dynsolver
945      - initialize GWATX/Y in seaice_init
946    o Apply mask on Fresh-Water flux (needed for SSH forcing).
947      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
948    o seaice: add runtime flags for turning angles (default to zero)
949    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
950      and trend from exf forcing and ctrl control adjustments
951    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
952      (since checkpoint57x_post)
953    o change the default rotation period to 86164.s = the Earth rotation
954    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
955      and based on a reference stratification. Tested within hs94.cs-32x32x5.
956    o seaice advection: add code for choosing between the default (2nd order
957      central differences) and multiDim advection schemes provided by
958      pkg/generic_advdiff
959    o seaice:
960      - removed all references to SEAICE_GRID.h fields from
961        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
962        (cubed-sphere configuration will change a little)
963      - grid computations in seaice_init are obsolete now.
964      - cleaned up code a little so that is easier to read (hopefully).
965      - added new (better?) discretizations of default advection and diffusion
966        (turn on with SEAICEuseFluxForm)
967      - replace 1 in 3d global fields by kSurface in growth.F
968      
969    checkpoint58a_post
970    o seaice:
971      - bug fix in advect.F
972    o shelfice:
973      - separate shelfice load anomaly from pload (breaks with time
974        dependent forcing), => introduce constant field shelficeLoadAnomaly.
975        Its default is 0., but it may be computed more cleverly from (unknown)
976        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
977        done offline. A good approximation of the pressure load anomaly is
978        necessary to avoid large initial adjustment processes underneath
979        deep-reaching shelfice.
980      - small fix in ISOMIP shelfice_thermodynamics
981      - add more sophisticated thermodynamics of Hellmer (1989), this is
982        now the default
983      - give a few constants more intuitive names
984    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
985      if bulk formulae are used in long integration (especially EmPmR). Turn
986      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
987      if balancePrintMean, the imbalance that is substracted is printed to
988      STDOUT.
989    o fix bug (typo) in obcs_apply_eta.F
990    o add a new package shelfice which enables us to model the circulation
991      underneath shelf-ice with draughts of hundreds of meters.
992     - works
993     - to do: + include improved thermodynamics
994              + check whether kSurfC (from model/inc/SURFACE.h) can be used
995                instead of new field kTopC
996              + can we use topoFile, Ro_surf and existing code in ini_depth.F
997                instead of new field R_shelfIce and new code in ini_depth.F
998                and ini_mask_etc.F?
999              + adjust vertical mixing schemes?
1000    o seaice pkg:
1001     - add a cpp-flag to include a simple formula for a salinity dependent
1002       freezing point of sea water at the surface
1003     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1004       meridional stresses are now different (and hopefully correct)
1005    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1006       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1007       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1008    o pkg/diagnostics: add options and parameters for regional-statistics
1009       diagnostics ; define regions by reading a region-mask from a file
1010       (might add other options later)
1011    o pkg/bulk_force:
1012     - add option and parameters to use AIM surface-flux formulae.
1013     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1014       others forcing fields (defined in PARM05, parameter file "data") are loaded
1015       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1016     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1017     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1018     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1019       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1020     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1021    
1022    checkpoint58
1023    o add "--embed-source" option to genmake2 which, when the supporting
1024      tools can be compiled (as determined by genmake2) will turn on the
1025      embed_files package which then embeds the entire MITgcm source code
1026      (*.[fFhc] + Makefile) used for the build within the executable
1027      - requested by CNH but off by default
1028      - adds a paltry <9MB to the mitgcmuv executable in most cases
1029      - only writes the output when useEMBEDSRC in eedata is true
1030    o clean up 3-dim. relaxation codes:
1031      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1032      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1033      * Thanks to Tom Haine for testing!
1034    
1035    checkpoint57z_post
1036    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1037      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1038    o fix the pickup behavior for obcs in combination with ptracers
1039    o fix a bug in ptracers_external_fields_load
1040    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1041      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1042    o transfered surface NH pressure to eta field (if exactConserv).
1043    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1044         and update lab_sea output.txt file.
1045    o completing 3-dim. relaxation code: additional term
1046         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1047      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1048      * At compile time, in "EXF_OPTIONS.h" set
1049          #define  ALLOW_CLIMTEMP_RELAXATION
1050          #define  ALLOW_CLIMSALT_RELAXATION
1051      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1052          tauThetaClimRelax3Dim = 15552000.0,
1053          tauSaltClimRelax3Dim  = 15552000.0,
1054      * 3 cases:
1055          1) Use a constant-in-time 3-dim. field
1056          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1057          3) Real-time relax. to time-evolving prescribed field
1058    o Adding Laplacian-type smoothness constraint on
1059      initial and boundary (forcing) controls (ic, bc)
1060      * enable at compile-time via
1061        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1062      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1063      * Absolute scale somewhat unclear so far
1064      * no area weighting was included since no other cost term does so far
1065    
1066    checkpoint57y_post
1067    First step for a NLFS adjoint
1068    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1069    o new init. routines for calc_r_star, calc_surf_dr
1070    o still need to deal with ini_masks_etc
1071    o testreport seemed happy
1072    checkpoint57y_pre
1073    
1074    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1075    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1076    o add new offset feature to offline pkg (plus minor cleanup)
1077    o cfc fixes for final year of integration
1078    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1079      be in GCHEM_OPTIONS).
1080    
1081    checkpoint57x_post
1082    o fix testreport Pb in multiple test experiment.
1083    o cleanup our namelist syntax in verification:
1084      - make it more F95 standards compliant (some work still needed)
1085      - allows the vast majority of our tests to work with gfortran
1086    o Non-Hydrostatic:
1087     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1088     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1089    o Allow to apply AB on T,S rather than on AB(gT,gS):
1090     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1091     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1092       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1093     - need a "clever" read_pickup to restart from the other AB formulation
1094    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1095    o remove some unused variables (reduces number of compiler warnings)
1096    o adjoint
1097      * Disable useVariableViscosity for adjoint for time being
1098        (there are a number of extensive recomputations)
1099      * Initialize certain variables needed for adjoint
1100    
1101    checkpoint57w_post
1102    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1103                 fix the singleCpuIO RS version of MDSWRITEFIELD
1104       and add a WARNING if using globalFiles=T with multi-processors.
1105    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1106      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1107    o tracer advection scheme:
1108      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1109       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1110       was not very convenient).
1111      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1112       (further tests needed for the implicit DST & Flux-Limiter schemes).
1113    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1114      and sRef for convenience, handy, when you want to initialize
1115      ptracers in a large domain with a constant non-zero value. Also,
1116      untangle ptracers_init.F a little.
1117    
1118    checkpoint57v_post
1119    o change dome exp. to use variable viscosity in side-drag terms.
1120    o remove all the files from the cfc_offline test since they are now
1121      incorporated into tutorial_cfc_offline which has been producing
1122      identical results for a few days of testing
1123    o add new parameter: sideDragFactor to enable half-slip-side BC
1124      and change side-drag S/R to use viscosity from mom_calc_visc
1125      (can switch back by setting sideDragFactor=0.); affects results at
1126      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1127       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1128    o vorticity & strain are now computed without masking, to account for
1129      no-slip-side BC in variable viscosity calculation ; mask is applied
1130      anyway later on, before computing advection/coriolis terms.
1131    o modify exp4 to test new obcs support for reading from external files
1132      and for passive tracers
1133    o fix behavior of ptracers_monitor when monitor output is written to a
1134      netcdf-file; still not independent of monitor.F (writes in the same
1135      file).
1136    o change default value of tRef (put a uniform, meaningful value for ocean
1137      & atmos) and initialize sRef (was missing, as Martin mentioned).
1138    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1139      to be proportional to enstrophy dissipation length.  Thus,
1140       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1141      This is now consistent with Smagorinsky and with the manual.
1142    
1143    checkpoint57u_post
1144    o OBCS and PTRACERS: add open boundary support for passive tracers
1145      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1146        OB-values from file; this is not different from the way theta and salinity
1147        are treated
1148      - however, Orlanski-radiation conditions are not supported, and the model
1149        will stop if you use pTracers and Orlanski at the same time.
1150      - beefed up the rountine obcs_external_fields_load: now only those open
1151        boundary values are overwritten with values from files for which there
1152        are really files, otherwise the OB-fields remain untouched. This makes
1153        it possible to use different OBs at different ends of the domain (as
1154        with EXF)
1155    o reduce number of exch calls in shap_filt (s2).
1156    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1157      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1158    
1159    checkpoint57t_post
1160    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1161    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1162      same truncation, independent of the face number: affects affects several
1163      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1164    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1165      note that biharmonic viscosity + no-slip was not tested in any experiment.
1166    o fix bug in non-linear free-surf side-drag ; generate new output for
1167      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1168    o make mnc honor the writeBinaryPrec flag for most kinds of output
1169    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1170    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1171      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1172    o add brackets in multi-terms sum to get same truncation, independent of
1173      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1174      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1175    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1176      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1177      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1178      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1179      Suggested values of viscosity parameters found in mom_calc_visc.
1180      Many new viscosity diagnostics available.
1181    
1182    checkpoint57s_post
1183    o Add clearing-house for viscosity calculations, mom_calc_visc and
1184      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1185      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1186      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1187      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1188      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1189      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1190      ViscAhStrain and viscAhTension are now retired.
1191    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1192    o In response to JMC's bug report, genmake2 now ignores any soft-links
1193      that it finds in the *current* directory when searching for files.
1194      Soft-links found in any other source directories will still work as
1195      they did before.
1196    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1197      a C routine to unlimit the stack size
1198    o mnc-ify pkg/aim snapshot vars
1199    o mnc-ify pkg/land as requested by Daniel
1200    o various changes to mnc including:
1201      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1202      - output can now be grouped so that all files within a group
1203          change the ITER portion of their names in lock-step together
1204      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1205          and works with both EXCH1 and EXCH2 (but needs more testing)
1206      - writing works for all verification test cases w/ g77 on Linux
1207    
1208    checkpoint57r_post
1209    o make MNC variable initialization happen earlier
1210    o add diagnostics for (almost) each term of the momentum Eq.
1211    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1212    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1213    o remove MINIMAL_TAVE_OUTPUT option ;
1214      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1215    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1216      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1217    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1218    o add time-dependent SST, SSS control
1219    o cost terms in ecco/ modularized (new cost_generic.F)
1220    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1221    o new infrastructure for seaice model vs. obs misfits in seaice/
1222      * driver from the_main_loop.F is seaice_cost_driver.F
1223      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1224      * gradient check in Exp. 6a of natl_box_adjoint/
1225    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1226      (see README file)
1227    
1228    checkpoint57q_post
1229    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1230    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1231      - bug was reported by Jean-Michel and Ian Fenty
1232    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1233      update exp. cpl_aim+ocn output.
1234    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1235      Needed for high-res. runs with large global files
1236      to be able to limit tapelev size
1237    o Changed some tests for adjoint:
1238      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1239      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1240      * global_ocean.90x40x15/ back to default 3-level checkpointing
1241    o Modifications to enable scripted COMMON to MODULE conversion
1242      * verification/OpenAD/code/ has necessary scripts and description;
1243      * converts, compiles and runs successfully;
1244    
1245    checkpoint57p_post
1246    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1247    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1248      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1249    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1250    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1251      (was already the case for dissipation with mom_vecinv,
1252       and also the case for grad.PhiHyd when staggered-timeStep)
1253      This will allow to put dissipation out-off the AB time-stepping.
1254     Unfortunately, affects truncation error. Update output of exp. that "fails"
1255      (cg2d matching number) and leave the others for later: front_relax(10),
1256      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1257      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1258    
1259    checkpoint57o_post
1260    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1261      (2) its ready to be documented during the 20050801 DocFest
1262    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1263      for ideal_2D_oce and lab_sea on linux_ia32_g77
1264    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1265      in global1x1_tot/code_seaice_adj to access indices 32, 33
1266      (worth another tag)
1267    
1268    checkpoint57n_post
1269    o adding precip control xx_precip 32
1270    o adding swflux control xx_swflux 33
1271    o Replacing 10 forcing penalty cost routines by 1 generic.
1272    o Implementing partitioning in time-mean and variable adjustment
1273      for atmos. state.
1274    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1275    o in natl_box_adjoint:
1276      * updated exp 1 to 10
1277        (but does not have time-mean vs. variable split results yet)
1278    o updated global1x1/*_seaice_adj/
1279      to incorporate latest changes
1280    o enable useSingleCpuIO for mdsio vector routines
1281      (applies in particular to tapelev I/O)
1282    o removed inefficient K-loop in all active_file*control*.F
1283    
1284    checkpoint57m_post
1285    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1286      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1287    o pkg/exch2: filling of face-corner halo regions is optional
1288      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1289    
1290    checkpoint57l_post
1291     tag before updating tutorials (pre-release-2)
1292    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1293       for output and interpolation of input fields onto model grid)
1294    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1295       Affects results of exp. rotating_tank ; update output.txt.
1296    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1297          and taking the square quantity and/or using a fraction-weight field.
1298    o fix aim_diagnostics_init.F mate numbers.
1299    o add mnc output capability to diagnostics/diagstat and update
1300      our cvsignore files for the ACSII output generated
1301    
1302    checkpoint57k_post
1303    o lab_sea now uses diagnostics package and provides a suite of
1304      new EXF diagnostics output.
1305    
1306    checkpoint57j_post
1307    o exf
1308      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1309        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1310        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1311      * extended diagnostics output
1312        - now includes all EXF variables
1313        - hs, hl moved to common block
1314        - separate S/R for diagnostics, called after ctrl vector is added
1315        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1316        - EXFqnet contains true Qnet (i.e. includes qsw)
1317      * updated verif. lab_sea, global_with_exf
1318      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1319        to ensure that diagnostics sees a true EXFqnet
1320    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1321    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1322      several times with different frequencies.
1323    o mnc-ify the thsice package as requested by Daniel Enderton
1324      - the monitor--MNC output needs work
1325      - many attributes need to be added (most are currently blank)
1326    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1327      - many attributes need to be added (most are currently blank)
1328    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1329    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1330    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1331      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1332         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1333    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1334     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1335    
1336    checkpoint57i_post
1337    o Diagnostics package was changed: diagnostic allocation is now deactivated
1338      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1339    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1340      add 1rst Order upwind vertical Shear.
1341    o add a quick fix for A/B checkpointing in OFFLINE mode
1342    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1343      end-run around the C/Fortran linking horror in eesup/src/timers.F
1344    o added pkg/runclock: allows user to terminate run based on wall clock
1345    o added non-hydrostatic scaling parameter: nh_am2
1346    o pkg/my82: futile attempt to make results compiler-independent by adding
1347      some "_d 0", etc. no effect.
1348    o for mnc output, fill the 'T' coordinate var with myTime and create a
1349      separate 'iter' variable for iteration count
1350    o pkg/diagnostics:
1351      add new capability: output of Global/Regional & per-level statistics ;
1352      tested against monitor output (including land & thSIce) on various exp.
1353    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1354    
1355    checkpoint57h_done
1356      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1357      data.diagnostics, data.gchem, data.ptracers) is done.
1358    
1359    o pkg/diagnostics: prepare for Global/Regional statistics.
1360      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1361    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1362      and rename it: DIFFERENT_MULTIPLE
1363    
1364    checkpoint57h_post
1365    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1366    o pkg/diagnostics: change output frequency, now in seconds (instead
1367      of Nb of iterations). This requires to change data.diagnostics.
1368    checkpoint57h_pre
1369    
1370    o in mnc, let the user create the output dir if both mnc_outdir_date
1371      and mnc_outdir_num are false
1372    o add fflags() to pkg/diagnostics which allows one to specify, on a
1373      per-file basis, the file precision [default behavior is unchanged]
1374    o added diagnostics to pkg/kpp, including computation of mixed layer
1375      depth based on a temperature/density criterion
1376    o updated verification/natl_box to test the new pkg/kpp diagnostics
1377    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1378    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1379    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1380      not mnc -- this mistake was found by JMC and is now corrected
1381    
1382    checkpoint57g_post
1383    o add Adams-Bashforth 3rd Order time stepping:
1384      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1385      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1386    checkpoint57g_pre
1387    
1388    o make lambda[Theta,Salt]ClimRelax spatially varying
1389      (default remains spatially uniform constant based on tau)
1390    o added new control variables
1391      * init. uVel, vVel, etanN
1392      * lambda[Theta,Salt]ClimRelax
1393    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1394      (suggested by G. Forget)
1395    
1396    checkpoint57f_post
1397    o add parameter "baseTime" = model base time = time at iteration zero
1398      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1399      account for baseTime shift
1400    o move Coriolis arrays from PARAMS.h to GRID.h
1401    checkpoint57f_pre
1402    
1403    o mnc-ifying the seaice package
1404    o introduced an alternative length scale calculation for use in the limiting
1405      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1406    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1407    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1408      as well as grad(vort3).  Made it compatible with both approximate form
1409      for the cubed sphere and full form of these gradients.  Added flag
1410      useFullLeith to select between approximate and full form.  
1411    o add "d0" in getcon.F to reduce differences between compilers/platforms
1412      update output.txt of exp. fizhi-gridalt-hs
1413    o change port_rand funtion to allow to set the seed.
1414    o fix obscure MNC bug involving conversion between reals and integers
1415      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1416        new version is now more standards-compliant
1417    o adjoint-related modifications
1418      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1419      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1420      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1421    
1422    checkpoint57e_post
1423    o Adding eddy stress controls a la Ferreira et al.
1424    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1425    
1426    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1427      update output.txt of exp. fizhi-gridalt-hs
1428    o add more "Z" dimensions and associated coordinate vars to MNC
1429    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1430    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1431      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1432      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1433      months and years.  Requires pkg/cal.
1434    o diagnostics: add pickup functionality
1435      - off by default for backwards compatibility
1436      - current version only uses MDSIO -- MNC will be added
1437    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1438    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1439    
1440    checkpoint57d_post
1441    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1442    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1443      output from the diagnostics package
1444    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1445    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1446      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1447    o add coordinate variables to the MNC output from the diagnostics package
1448    o change MNC-flags default value: true when useMNC=TRUE
1449    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1450      the ability (off by default) to read the grid information using MNC
1451    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1452    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1453    o do snap-shot diagnostics at the middle of the time-interval (instead of
1454      at the end).
1455    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1456      new test for AIM with thSIce + slab-ocean
1457    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1458    o move state variable diagnostics to the beginning of the time step ;
1459      (note: still needs some work specially for snap-shot diagnostics)
1460      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1461    
1462    checkpoint57c_post
1463    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1464    o generate new output.txt files on faulks with g77 & the new -ieee option
1465    checkpoint57c_pre
1466    
1467    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1468      update output.txt of exp. global_ocean.90x40x15
1469    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1470      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1471    o add saltFlux(+File) forcing capability with periodicExternalForcing
1472    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1473    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1474    o improvements for the MNC output from DIAGNOSTICS:
1475      - correct handling of the unlimitied dimension
1476      - all dims now have associated coordinate variables
1477      - variables located at U, V, and Corner ("Z") points are now written
1478        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1479        *all* data points are output
1480    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1481    o added pkg/seaice/seaice_monitor.F
1482    o mdsio_readfield.F can now read files visible only to master MPI process.
1483    o pkg/seaice: some test code for ice-modified ocean stress
1484    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1485      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1486      spurious negative numbers for precipitation and humidity.  Will cause
1487      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1488    o pkg/ctrl/
1489      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1490        May be enabled via doPackDiag
1491      *  introduce z-scaling of
1492         + gradient (doZscalePack) and
1493         + control (doZscaleUnpack)
1494    o pkg/mdsio/
1495      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1496      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1497    
1498    checkpoint57b_post
1499    o simplify options in diagnostics_fill arguments (remove weird combinations)
1500    o fix MNC coordinate variables so that they now contain per-face index
1501      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1502      general, EXCH2 grids are only aligned to a "local" coordinate system
1503    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1504    o Implement instantaneous output within pkg diagnostics:
1505      setting a negative frequency in data.diagnostics produces
1506     "snap-shot" output (as opposed to time-average if freq > 0)
1507    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1508      NOTE: change ptracer diagnostics name: use 2 characters to work with
1509            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1510    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1511      becomes the coordinate variable for the 'T' dimension
1512    o add CF-style coordinate variables to MNC
1513      - just a first cut:  numbers are meaningless on the cubesphere and
1514        missing along the T axis but otherwise it works!
1515    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1516    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1517    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1518      this is based directly on what the model compute, so that the content of
1519      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1520    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1521    o clean up build options files for SunOS, in particular
1522      - remove -traditional from xmakedepend
1523      - change -xarch=v9 to -xarch=native for f77
1524      - restore use of make (not gmake)
1525      - add CC=gcc if using g77
1526    o changes per discussion of AM, JMC, & EH3 today:
1527      - move redundant "grid" variables out of "state" -- in preparation of
1528        creating proper CF-style coordinate variables and in recognition
1529        that any/all grid variables can be easily copied (eg. w/NCO) from
1530        the grid files into any of the other NetCDF files
1531      - *always* output grid variables with MDSIO (this will eventually be
1532        changed)
1533      - output MNC grid file if useMNC is true
1534    o every instance of _END_MASTER() has been found and replaced with
1535      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1536      preprocessors
1537    o re-arrange diagnostics pkg initialisation:
1538     - allow each package to extend the available diagnostics list
1539     - add some checking and fix small problems (multi-threaded, ...)
1540     - new S/R diagnostics_fill (replace fill_diagnostics):
1541       look through the short list of active diag. (instead of the long list)
1542       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1543    
1544    checkpoint57a_post
1545    o this set of changes restores TAMC compatibility
1546      tested for global_ocean.90x40x15 adjoint on trough
1547      (what a pain)
1548    
1549    checkpoint57a_pre
1550    o some modifs in tools/build_options for sunos
1551    o call ctrl_pack for ctrl at end for optimcycle=0
1552    
1553    checkpoint57
1554    o add horizontal bi-harmonic viscosity for vertical velocity
1555      - new parameter viscA4W (defaults to viscA4)
1556      - affects only non-hydrostatic code
1557      - to be done: no-slip lateral boundary conditions
1558    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1559    o implement Implicit Vertical advection for pTracers
1560    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1561      (implemented also for implicit vertical diffusion & advection)
1562    o OBCS: extend application of tracer open boundary conditions
1563      to a strip beyond the boundary of width Olx/Oly
1564    o add call monitor to TAF set of required calls (flow directives)
1565      and include in natl_box_adjoint
1566    o untangle a few ifdefs related to cost, ctrl, autodiff
1567      untangel a few ALLOW_ECCO_OPTIMIZATION
1568    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1569      (theta2, salt2 in ecco_cost_weights)
1570    
1571    checkpoint56c_post
1572    o OBCS as control variables
1573      - update ctrl_ad_diff.list, obcs_ad_diff.list
1574      - remove balance of obcs controls from default
1575      - fix index bug nobcs in ctrl_init
1576      - fix dummy fields filen in ctrl_pack
1577      - add dummy weights for obcs
1578    o lsopt: comment out fort.94 output
1579    o optim:
1580      - remove unnecessary header files
1581      - adjusted namelists
1582      - add xerbla.F to Makefile
1583    o exf:
1584      - multiple modifications of exf_check_range
1585      - unit change in exf_init_runoff from [m/year] to [m/s]
1586    o mdsio:
1587      - i/o-vector change debugLevel from debLevA to debLevB
1588    
1589    checkpoint56b_post
1590    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1591      is called from DO_THE_MODEL_IO
1592      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1593      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1594      - clean up PTRACERS_WRITE_TIMEAVE a little
1595    o add another verification experiment that tests both the cfc-pkg and
1596      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1597      reactive tendencies treated inline with regular timestepping
1598    o testreport previously did a lousy job of comparing small numbers, so
1599      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1600      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1601      testreport.
1602    o ptracers_monitor: bug fix for MPI
1603    
1604    checkpoint56a_post
1605    o GCHEM: finish reorganizating the package
1606      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1607        (introduces another 3D-array for each passive tracer, but only if
1608        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1609        gchemTendency is not needed because the timestep is done separately)
1610      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1611      - GCHEM is now---more or less cleanly---separate from PTRACERS
1612      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1613        so clear to me how that should be done in a general way.
1614    o CFC: improve formatting of output in CFC_ATMOS
1615    o PTRACERS:
1616      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1617        that ALL experiments with ptracers enable can be checked. This makes
1618        GCHEM_MONITOR obsolete.
1619      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1620        monitorFreq
1621      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1622    o add PTRACERS (PTR0[1-5]) to testreport output
1623    o exf_check_range:
1624      * default changed to .TRUE.
1625      * will check values for niter0 if debLevA, every timestep if debLevB
1626      * STOP in exf_check_range if 'out of range'
1627      * range chosen generous to allow for potential extema
1628      TBD: a version with stricter range
1629           permitted range would be runtime parameters
1630    o GMredi:
1631      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1632      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1633      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1634    o GCHEM:
1635      - move call to GCHEM_FORCING_SEP, so that it is now called before
1636        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1637      - introduced a useGCHEM runtime flag and applied it everywhere.
1638      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1639        this flag is now only visible within GCHEM-pkg routines.
1640      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1641        be replaced by a 3D array that is computed before thermodynamics; for
1642        this, the tracer ID iTracer had to be included into the parameter list
1643        of ptracers_forcing
1644      - set up forward_step to call gchem_forcing, that will replace
1645        gchem_forcing_int in ptracers_forcing
1646      - cleaning up
1647    o small cleaning of exch2: remove files that are also in eesupp/src
1648    
1649    checkpoint56
1650    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1651    o mnc: cleanup "full" files--fixes out-of-memory problem
1652    o ECCO-GODAE
1653      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1654      * fully merged and updated from SIO code
1655        windstress sign change affects
1656        - exf_inscal_[u/v]stress
1657        - sign of xx_tau[u/v] adjustments
1658        - signs in cost_scat
1659      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1660      * natl_box_adjoint updated and compressed
1661      * 2-level checkpoint switch added
1662        (tested in EXP. 1 of natl_box_adjoint)
1663      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1664    o SVD
1665      * first complete, non-hacked version for SVD calculations
1666      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1667        performed via direct access files admtlm_vector.it????
1668        (via ctrl_[un]pack)
1669      * optimcycle is used for ARPACK iteration counter
1670        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1671      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1672        and add linear transforms where necessary
1673      * controls are initial/final SST, SSS (can be extended; need to check
1674        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1675    o mdsio: filename info to both stderr, stdout
1676    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1677      from sign change
1678    
1679    checkpoint55j_post
1680    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1681      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1682    o add consistent build directories and .cvsignore files to verification
1683    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1684    o make all subroutines 30 or less characters in length for certain older
1685      compilers to work (a thorough search only turns up two routines in
1686      pkg/ptracers)
1687    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1688      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1689    
1690    checkpoint55i_post
1691    o change arrays for total vertical diffusivity (2.D if explicit,
1692      3.D if implicit) ; each ptracer uses its own background value.
1693    o added mnc/NetCDF output capability to ocn_compon_interf
1694      - added bits to verification/cpl_aim+ocn so that it can run on
1695        ITRDA and other clusters without the mpirun "-wd" option
1696    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1697      configuration
1698    o give MNC the ability to create additional files rather than
1699      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1700      - the default is just less than 2GB which is a practical limit
1701        on many systems
1702    o Compute the non-local term using either KPP vertical diffusivity (=default)
1703       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1704    
1705    checkpoint55h_post
1706    o add verification test "vermix"
1707    o remove all the *_ioinc flags and replace with the single global
1708      outputTypesInclusive flag
1709    o allow to set a vertical profile of vertical diffusivity for T & S
1710    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1711    o useMNC moved from data.mnc to data.pkg
1712    
1713    checkpoint55g_post
1714    o Renaming carbon AD experiments to comply with testreport conventions
1715    o Updating adjoint of Held-Suarez hs94.1x64x5
1716    o Fixing directives for non-ECCO forward_step, after ECCO directives
1717      have been fixed to avoid recomp. of do_oceanic_phys
1718      Works well for global_ocean.90x40x15,
1719      but recomp. issue remains for carbon
1720    o Updating adjoint output for natl_box_adjoint after
1721      pkg/ecco has been modified (see taga c55d_post)
1722    
1723    checkpoint55f_post
1724    o rename to timeave_init_fixed
1725    
1726    checkpoint55e_post
1727    o some delicate re-shuffle of store directives to avoid one
1728      extra call of do_oceanic_physics
1729      affects ecco_the_main_loop.F, do_oceanic_physics.F
1730      checkpoint_lev1_directives.h
1731    o NB: this may break global_ocean adjoint temporarily,
1732      but it is clear how to fix it. Will do later, need this now.
1733    
1734    checkpoint55d_post
1735    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1736    o ecco_cost_weights is modified to 1x1 runs
1737    o modifs to allow observations to be read in as
1738      single file or yearly files
1739    o enable to read exf forcing fields as either
1740      single file or yearly files (flag useExfYearlyFields)
1741    checkpoint55d_pre
1742    
1743    o switch between 2-level and 3-level checkpointing
1744    o add ability of MNC to write local and "partial" (eg. 2D slices where
1745      the full 3D field is never actually stored) arrays to NetCDF files
1746      with the correct (that is, the complete multi-dimensional) set of
1747      array indicies
1748      - used in mom_vecinv() to write the diagFreq output
1749      - tested (demonstrated) in verification/aim.5l_cs
1750    o further mnc-ification
1751      - add verification/lab_sea to the list with mnc setups
1752      - fix undefined mnc v-names in cd_code
1753      - add kpp to mnc output (both snapshot and timeave)
1754    o non-hydrostatic code
1755      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1756        in calc_gw.F
1757      - defaults to viscAh
1758      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1759        friction or Leith) in non-hydrostatic mode, as long as there is
1760        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1761    o pkg/cost
1762      extend simple cost functions to treat time mean quantities
1763      (T,U,V) via cost_accumulate_state from cost_tile
1764    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1765        be 2 times larger than the minimum size the advection scheme requires.
1766        now get a perfect conservation of salt in advect_cs test-exp (updated)
1767    o GGL90 (Gaspar's TKE mixed layer)
1768      - add horizontal diffusion of TKE, requires exchanges in
1769        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1770        default. In OPA there is no horizontal diffusion of TKE but the
1771        mixing coefficients are computed from a horizontal average of TKE of
1772        6 points or so. I think that diffusion has a little more physical
1773        justification.
1774      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1775        was in vain)
1776      - mask tke-variable in ggl90_init
1777    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1778    o fix biharmonic diffusion on CS-grid.
1779    o more obcs stuff
1780      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1781        for reading boundary values. This routine is called from
1782        obcs_prescribe_read
1783      - updated obcs_check
1784      - changed sponge layer relaxation parameter units for days to seconds
1785      - turned off sponge layer by default
1786      - changed argument list of OBCS_CALC to myTime+deltaTclock
1787      - fixed about 35 bugs in obcs_external_fields_load
1788    
1789    checkpoint55c_post
1790    o obcs stuff
1791      - new runtime flags useOBCSprescribe, useOBCSbalance
1792      - re-arranged obcs_calc
1793      - moved exf_getobcs to obcs_prescibe_read
1794        obcs_prescibe_read is called after ORLANSKI stuff
1795        and independent of it (executable can contain all).
1796      - updated obcs_check
1797      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1798        These may be necessary only if tangential velocities are
1799        prescribed at OB, not sure, needs testing.
1800    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1801      which simplifies the calls and passes the ifc check-bounds test
1802    
1803    checkpoint55b_post
1804    o add a 2D scalar, Z location, exchange_2 routine.
1805    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1806      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1807      affects advect_cs results (for the wrong reason): update output.txt
1808    o use a more standard discretization for biharmonic viscosity ;
1809     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1810      affects results of dome set-up: update output.txt
1811    o fix gad_advection.F (CubedSphere part), back to version 1.23
1812    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1813    
1814    checkpoint55a_post
1815    o merged code to
1816      * prescribe/read time-dependent open boundaries
1817        (works in conjunction with exf, cal)
1818      * sponge layer code for open boundaries
1819      * each boundary N/S/E/W now has its own CPP option
1820        (healthy for the adjoint)
1821    
1822    checkpoint55
1823    o up-to-date adjoint of previous breaks
1824      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1825      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1826      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1827      - carbon: * remove tr1-related adjoint verification
1828                * add ptracer as control variable
1829    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1830      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1831    
1832    checkpoint54f_post
1833    o in verification/carbin/ remove experiment related to
1834      ALLOW_PASSIVE_TRACER (array tr1 etc)
1835      code_ad/ input_ad/ results_ad
1836    
1837    o add two new packages
1838      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1839        + subject to optimization (memory)
1840      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1841        + subject to reordering (many GOTOs in the original code)
1842        + so far opps is called for every (i,j) point, and then operates in
1843          the vertical; one may want to reorder the scheme in order operate in
1844          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1845          fields)
1846    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1847      - all verification tests compile and run with linux_ia32_g77
1848      - defaults are compatible with current input files--nothing
1849        should change if you were not previously using MNC
1850      - MNC output has been added in numerous places (eg. timeave)
1851        but there are still a few writes not yet do-able with MNC
1852        (this is in progress)
1853      - flags now allow for either/or/both use of MDSIO and MNC and
1854        documentation will soon follow
1855      - numerous small formatting cleanups for ProTeX
1856    o add version info (via BUILD_INFO.h) to MNC and stdout
1857    
1858    checkpoint54e_post
1859    o add two new packages
1860      - pp81 (Packanowski and Philander, 1981), Richardson number and
1861        stratification dependent mixing
1862      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1863      - these scheme operate in a similar manner as KPP (without ghat, of
1864        course), however there is only one diffusivity that is used for both
1865        temperature and salinity (and passive tracers)ç
1866    o add offline package
1867    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1868      provided by Stephanie Dutkiewicz
1869    o genmake2: add ability to search for C compilers and cleanup test output
1870      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1871    
1872    checkpoint54d_post
1873    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1874    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1875      leading to additional shift by 5 days each year of integration
1876       (i.e. leading to considerable offset over the years)
1877    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1878    o start with no AB and no initial filtering (staggerTimeStep):
1879      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1880    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1881      (external loading & cpl import/export stay in forward_step.F)
1882    o update coupling interface to work with new staggerTimeStep
1883    o change MDSIO ptracers_pickup.
1884    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1885    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1886    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1887    
1888    checkpoint54c_post
1889    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1890      this affects (truncation error) output.txt of test-exp:
1891       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1892    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1893    o change Qnet to always be the net heat flux, (+upward).
1894      affects (truncation error) output of natl_box exp.: updated
1895    o define the max number of passive tracers in PTRACERS_SIZE.h
1896    o start to test mnc routinely in exp0
1897    o add sea-ice loading (sIceLoad) as a new forcing field.
1898    
1899    checkpoint54b_post
1900    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1901       impressive on Altix and Opteron systems)
1902    o diagnostics can now write NetCDF files through the mnc package
1903    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1904    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1905    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1906      affects (truncation error) output of lab_sea & natl_box exp.: updated
1907    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1908    
1909    checkpoint54a_post
1910    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1911    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1912    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1913    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1914      + internal_wave (shift in writing cg2d_ini_res)
1915    checkpoint54a_pre
1916    
1917    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1918      - modified verification/lab_sea and natl_box_adjoint accordingly
1919    
1920    checkpoint54
1921    checkpoint53g_post
1922    o prepare splitting of thermodynamics: store convect.counter in common block
1923    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1924      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1925    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1926    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1927    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1928    o restore adjointability
1929    
1930    checkpoint53f_post
1931    o modifications that affect AIM experiment results (update output.txt):
1932      - no advection of S at top interface Nr (pkg/generic_advdiff)
1933      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1934    o AIM pkg:
1935      - include stability function into surf.Flux derivative relative to Tsurf
1936      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1937    
1938    checkpoint53e_post
1939    o merged cylindrical coord configuration
1940    o added rotating_tank experiment
1941    checkpoint53e_pre
1942    
1943    checkpoint53d_post
1944    o faulks upgraded: re-generate output.txt that have changed:
1945       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1946    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1947    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1948    o added Sadourny discretization of Coriolis
1949      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1950      - re-enabled use of omega3 (useAbsVorticity)
1951    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1952      vector-invariant equations
1953      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1954    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1955      hopefully without new bugs
1956      - still to do: biharmonic friction for non-hydrostatic w
1957    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1958    o regenerated output for global_ocean_ebm (using -ieee)
1959    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1960      of mom_common/
1961      - simple re-arrangement of instructions within computing loop
1962    checkpoint53d_pre
1963    
1964    checkpoint53c_post
1965    o new version of coupler for AIM+thSIce and Ocean models
1966     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1967     - land: change Evaporation of snow
1968     - aim with thSIce: fix bug in snow-precip.
1969    o changes to calc_gw.F
1970     - bug fix for w^2 term near the bottom boundary
1971     - (hopefully) improve the lateral slip boundary condtions for use with
1972        partial/looped cells
1973      - because the bug fix changes two verification experiments anyway (exp5
1974        and plume on slope), change the lateral boundary condition from half slip
1975        to the value of no_slip_sides
1976    o ebm package wasnt quite up to the parallel task. Fixed that.
1977    o Adjoint of EBM package + verification
1978      * TLM OK
1979      * ADM not sufficient accuracy yet (needs further testing)
1980    
1981    checkpoint53b_post
1982    o Commiting new energy balance model to repository
1983      * package is pkg/ebm
1984      * verif. is verification/global_ocean_ebm
1985      * references are in ebm_driver.F
1986    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1987    C        Global thermohaline circulation. Part I:
1988    C        Sensitivity to atmospheric moisture transport.
1989    C        J. Climate 12(1), 71-82
1990    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1991    C        Global thermohaline circulation. Part II:
1992    C        Sensitivity with interactive transport.
1993    C        J. Climate 12(1), 83-91
1994    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1995    C        Destabilization of the thermohaline circulation
1996    C        by atmospheric eddy transports.
1997    C        J. Climate 7(12), 1870-1882
1998    o Will need long integration testing.
1999    checkpoint53b_pre
2000    
2001    o created pkg/mom_common in preparation for variable viscosity code
2002    o renamed and split ini_mnc_io
2003    o pkg/land: only liquid water can diffuse or run-off
2004    o AIM using land: soil wetness availability account for snow
2005    o added printMapIncludesZeros to EEPARMS namelist
2006    
2007    checkpoint53a_post
2008    o restore TAMC compatiility for exf_constants.h
2009      (no usage of _d in .h)
2010    o Additional storing in KPP in an attempt to fix
2011      TAMC problem with adjoint of KPP code.
2012      (no success...)
2013      Identical code works fine with TAF.
2014    o Fixed verification/natl_box_adjoint experiments.
2015      Initial conditions for Experiments 4 and 5 are now
2016      set to "SEAICE_initialHEFF=0", which is more reasonable,
2017      and hence gives results closer to that of Experiment 2.
2018      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2019    
2020    checkpoint53
2021    o stable checkpoint with up to date adjoint
2022      TLM tests only run for 1st grdchk at the moment. Its unclear if
2023      this is a code problem or a problem with resetting code for g_
2024      variables that is being autogenerated wrong.
2025      Otherwise:
2026       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2027       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2028         are both still in chaos following their security messes.
2029    
2030    checkpoint52n_post
2031    o various build (mostly genmake2) changes including:
2032      - ability to build/run more easily within Cygwin and MacOS X
2033      - more complicated Makefiles with a stronger dependence on Gnu Make
2034    o pkg/seaice modifications
2035      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2036        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2037        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2038      - changed proxy for geostrophic velocity and updated
2039        verification/lab_sea/results/* accordingly
2040      - removed ADI dynamic solver from pkg/seaice
2041      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2042        they caused a segmentation fault under certain circumstances
2043      - removed unused field WATR
2044    o bug fix in exf-package:
2045      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2046         now reflect that.
2047    o small fixes in the cal-package:
2048      - set reference date to first of January for the 'model'-calendar
2049      - failing of cal_CheckDate in cal_FullDate now actually results in a
2050        warning
2051    o small modifications in exf-package to increase flexibility:
2052      - change climtempfreeze from a constant to a runtime parameter that
2053        is specified in data.exf_clim (default = -1.9)
2054      - introduce runtime parameter windstressmax (default = 2.0) that is
2055        specified in data.exf
2056    o fix in pkg/thsice:
2057      - update Evap (Tsf changes) to be consistent with Latent heat flux
2058      - maintain snow precipitation unchanged (even if Tsf >=0).
2059     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2060    
2061    checkpoint52m_post
2062    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2063      this does not change any of the results, because myIter=0 in swfrac always
2064      lead to jwtype=2 (the default anyway), but the call makes little sense
2065      as a default
2066    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2067    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2068      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2069    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2070    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2071    o extending useSingleCpuIO option to work with new exch2 I/O format
2072      - old-style, missing-tile I/O is still accessible by defining CPP
2073        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2074    o monitor package can write to NetCDF files and/or STDOUT
2075    o fix re-definition bug in MNC_GRID_INIT_ALL()
2076    o doc/api_reference added
2077      - a framework for building an API Reference Manual using all
2078        the "protex" comments embedded in the code
2079      - see pkg/generic_advdiff, pkg/mnc for examples
2080    o MNC:
2081      - make myThid the last argument for all subroutines
2082      - new default for the grid files: NO halos
2083      - add useMNC and other run-time flags
2084      - separate per-file-group handling of the unlimited dimension
2085      - early initialization of MNC w/ flags read at the eeboot stage
2086        and lookup tables set in initialize_fixed
2087      - write all MNC output to a freshly-created directory
2088    o thermodynamics sea-ice (thsice) is now tested with testreport.
2089    o test exp. advect_cs: use the standard cs32 grid ; update output.
2090    o Added functionality to grdchk:
2091      pick global i,j,k position (or nearest wet) where to perform check.
2092    
2093    checkpoint52l_post
2094    o new land formulation:
2095      a) use ground enthalpy as prognostic variable to ensure exact
2096         energy conservation.
2097      b) account for water temperature and for latent heat of freezing
2098         in all processes (rain, run-off, ground storage)
2099      c) compute surface and ground temperature implicitly.
2100    o aim_v23 modification for new land model:
2101      a) Treat separately land / ocean / sea-ice surface fluxes
2102         to allow implicit computation of land & sea-ice surface temp.
2103      b) add snow precipitation.
2104    checkpoint52l_pre
2105    
2106    o fix problem (when 1 tile is empty) in min/max monitor.
2107    o fix bug in timeAve (u,vZetatave in common block)
2108    o no restoring terms under ice for pkg/seaice
2109    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2110    o bug fix for pkg/seaice pickups
2111    o change MNC call locations and add coordinate attributes
2112    o mask vorticity at the corner ; affects global_ocean.cs output
2113    o fix ini_curvilinear_grid ; test CS experiments with mpi
2114    o aim.5l_cs: modify sea-ice fraction input file ; update output
2115    o exf: Adding simple range check routine for exf fields after read
2116    
2117    checkpoint52k_post
2118    o removed top-level directory "diags"
2119      - we migrated these functions to pkg/timeave a long time ago
2120    o fixed bug introduced in pkg/monitor
2121    o accuracy ctrlprec = 32 insuffient for gradient checks using
2122      averaged fields (I/O via cost_averages)
2123      -> use ctrl.h in active_file*.F to control I/O precision.
2124    o paramter list of CALL ADTHE_MAIN_LOOP
2125    o added initial do_the_model_io to ecco
2126    o set all ...Freq to zero after cost_final
2127      taveFreq, dumpFreq, pChkptFreq
2128    o MAIN and ECCO differentiability restored
2129    
2130    checkpoint52j_post
2131    o fix nchklev in tamc.h for global_ocean...
2132    o Bringing flow and store directives up-to-date
2133    o Really weird thing!
2134      call do_the_model_io from the_main_loop with parameters
2135      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2136      TAF places a faulty re-call of initialise_varia
2137      after cost_final call which should not be there!
2138    checkpoint52j_pre
2139    
2140    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2141      error messages
2142    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2143    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2144      debug output
2145    o modfied mdsio_writefield.F to handle non-global files under exch2
2146    o update AIM Cubed-Sphere exp (aim.5l_cs):
2147      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2148    o update AIM Equatorial Channel exp:
2149      use standard aim_v23 pkg and change the SST fields to be more realistic.
2150    o globalFile now works with exch2
2151    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2152      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2153    o limit timeave output for hi-res integrations
2154    
2155    checkpoint52i_post
2156    o removed CPP_EEOPTIONS.h from verification/*/code
2157    o updated the tiling for global_ocean_pressure
2158    checkpoint52i_pre
2159    
2160    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2161      the old pkg/aim).
2162    
2163    checkpoint52h_pre
2164    o shortened offending lines in exch2_send_rx?.template
2165    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2166    o genmake2: add build & execute test for NetCDF code
2167    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2168      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2169    o added useSingleCPUIO flag to monitor.F and mon_out.F
2170    o added temporary hack for sea-ice dynamics on the cube:
2171      metric terms are ignored and it is assumed that
2172      there is no sea-ice on cube faces 1, 2, 4, and 5.
2173    
2174    checkpoint52f_post
2175    o added exch2 cube routines to pkg/exch2
2176    o modified hs94.cs-32x32x5 to use it
2177    o added new grid files to hs94.cs-32x32x5
2178    checkpoint52f_pre
2179    
2180    checkpoint52e_post
2181    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2182      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2183    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2184      to work with implicit vertical advection and AB ;
2185    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2186    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2187     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2188    checkpoint52e_pre
2189    
2190    o fix bug in impldiff when Nr=1 or Nr=2.
2191  o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt  o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2192  o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.  o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2193  o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2  o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2

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