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revision 1.226 by jmc, Tue Dec 16 15:16:39 2003 UTC revision 1.898 by jmc, Tue Oct 23 16:19:50 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 new read/write pickup version:
8      - for now, only implemented for main (mdsio) pickup file.
9      - write out only what is needed to restart; merge pickup_nh , pickup_ph
10        and main pickup together.
11      - read meta file; read only what is needed to restart; stop if a field
12        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
13        if it make sense (even if the restart is not perfect).
14      - if no meta file, assume that pickup to read corresponds exactly to
15        a pickup that would currently be written.
16      - read pickup written in the old format (until checkpoint59i) if it
17        recognizes an old meta file (no field-list).
18      - add a meta file in exp. which starts from a pickup: 2 cases:
19        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
20         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
21        b) a meta file describing the content of the associated pickup file
22         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
23    o pkg/mdsio & pkg/rw:
24      - new routine to read a meta file ; new set of routine to read
25        Multiple-fields file (with meta file).
26    o added open boundary conditions capability for seaice HSNOW and HSALT
27    
28    checkpoint59i
29    o adjoint:
30      * fix multiDimAdvection adjoint
31        (partial recomputation problem by TAF for fVerT(:,:,kDown)
32        and comlev1 size definition (maxpass vs. max. number of tracers)
33      * verification/global_ocean.90x45x15 adjoint now tests
34        NLFS and multiDimAdvection using DST3 (=30)
35      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
36    o pkg/kpp: add "_d 0" to real constant (if missing);
37      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
38      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
39    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
40      for internal parameters related to restart process (formerly from PARAMS.h)
41      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
42    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
43      as argument. (only atm2d & obcs write_pickup have not yet been updated)
44    o pkg/monitor:
45      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
46      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
47      - account for deep Atmosphere factor and density factor (anelastic)
48    o added open boundary conditions capability for seaice HEFF and AREA
49    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
50      thermodynamics
51      - requires a little reorganization, which affects the testreport results
52        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
53        so that now the conservative form is tested
54      - add a few comments
55    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
56    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
57    o add new diagnostics to seaice: advective, diffusive fluxes (only for
58      multidim-advection, for scheme 2 they are not filled) and transports,
59      thermodynamic growth rates
60    o change units of EmPmR (inside the code) from m/s to kg/m2/s (mass flux) but
61      leave input file unchanged. Affects results @ truncation level (cg2d match)
62      and update output of experiments: lab_sea(6), global_ocean.90x40x15(10),
63      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
64      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
65      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
66    
67    checkpoint59h
68    o pkg/exf:
69      - improve vectorization by moving if-statement out of loops in
70        exf_mapfields, exf_radiation
71      - exf_bulkformulae.F: introduce 2D fields and vectorize code
72    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
73    o testreport:
74      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
75        monitor & update offline_exf_seaice exp. output.
76      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
77    o pkg/seaice:
78      - bug fix in the evp solver: boundary conditions were affected be
79        masking of zMax/zMin (changes results)
80      - minor bug fix in boundary conditions in seaice_calc_strainrates
81        (changes results for no_slip)
82      - seaice_lsr.F: make interpolation of eta dependent on boundaries
83      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
84      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
85        stress formulation and no-slip boundary conditions
86    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
87      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
88    o pkg/seaice: a first HSALT time stepping equation has been checked in
89    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
90      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
91      without requiring DO-IF statements
92    o pkg/thsice:
93      use continuous power-law function for partition of energy between lateral
94      melting/freezing and thinning/thickening ; old code using step function
95      still available with #undef THSICE_FRACEN_POWERLAW
96      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
97    o testreport: change AD testing : check against results/output_adm.txt
98      using same scripts as for forward test.
99    
100    checkpoint59g
101    o adjoint testing: in preparation for changing testreport:
102      - output format: cost and grad written on separated lines
103      - ad output results in directory "results" (instead of "results_ad")
104    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
105    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
106    o pkg/ecco: allow user defined cost function contributions
107    o testreport:
108      Allow to choose (per experiment) the list of tested output variables
109       and the main variable (used to issue a pass/FAIL ) ;
110      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
111      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
112      Also modify printing of summary:
113       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
114       b) echo the list of tested variables in the individual summary.txt of
115          each experiment.
116    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
117      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
118      (but still depend on the tile decompostion of the domain).
119    o pkg/seaice: change a discretization detail to make the B-grid code
120      "more symmetric". This change is likely to remove all "ridges/leads" that
121      where quasi-aligned with the grid in B-grid solutions. It may also be
122      the solution to the stress coupling issues with the B-grid.
123    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
124      remove .cvsignore from input dir. (since testreport no longer run here).
125    o pkg/thsice:
126     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
127     - fix reshaping of sea-ice just after advection:
128       melt all the ice only if ice-volume is too small.
129     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
130       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
131     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
132    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
133      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
134    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
135      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
136      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
137      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
138      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
139      -> update output.txt
140    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
141     this affects truncation error: -> update output.txt of exp:
142      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
143      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
144    
145    checkpoint59f
146    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
147    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
148      a bounded range (in forward mode)
149    o pkg/ecco, ctrl, autodiff and mom_common:
150     internal parameter controls, completements of implementations
151    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
152    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
153      (not seem any difference in testing results).
154    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
155       at face corners.
156    o pkg/generic_advdiff:
157     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
158      loop range indices for computing vertical advection tendency
159      and do the calculation in the interior only (no overlap) ;
160      for now, only implemented for SOM advection (to save CPU time).
161     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
162    o exch2 adjoint
163      First set of changes:
164      - add exch2 hand-written adjoint templates
165      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
166        This will require cleanup in pkg/autodiff/*.F
167        (changed routines currently kept separate in verif. code/)
168      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
169        that used to hide exch2 or cubed-sphere specific code
170        (commented via 'cph-exch2')
171    o pkg/seaice
172      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
173    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
174       output of global_ocean.cs32x15.thsice .
175    
176    checkpoint59e
177    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
178      for B-grid vector (not yet tested) and C-grid vector (<- only used
179      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
180    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
181      (#ifdef ALLOW_SALT_PLUME)
182    o gather_2d/scatter_2d: removed halo regions
183    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
184      scheme and the corresponding test case (under front_relax dir). For now,
185      only available with Skew-flux form and not yet tested in realistic set-up.
186      adjoint: store directives updated, but gradient checks deteriorated,
187      so maybe GM/Redi adjoint is now broken.
188    o seaice adjoint
189      * add AREA, HEFF, HSNOW as control variable
190        (should not change lab_sea results)
191      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
192    o pkg/seaice:
193      * added computation of saltFlux in seaice_growth;
194        For time being, sea ice salinity is assumed constant
195        contribution of snow flooding to freshening of sea ice is neglected.
196        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
197        defaults to 0.0 in order to maintain backward compatibility.
198        Typical values for SEAICE_salinity are 4 to 10 g/kg.
199      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
200      * added SEAICE_availHeatFrac, which specifies fraction of surface level
201        heat content used to melt or grow ice
202      * commented out cap of HICE: it helps keep ice thinner
203      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
204      * applied OBCS T/S mask to HEFFM sea ice mask
205    
206    checkpoint59d
207    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
208     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
209     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
210    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
211     and change default value of parameter "GM_Small_Number";
212     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
213       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
214       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
215    o pkg/ecco: cost function when applying pkg/smooth to controls
216    o pkg/ctrl: add forcingPrecond run time parameter
217    o pkg/seaice:
218     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
219     - fix bug in metric terms of u-equation in LSR solver (implicit part),
220       changes verification/lab_sea
221     - rearrange implicit part of u-equation in LSR solver to make it easier to
222       read, understand, and debug. This causes changes at the truncation level.
223     - fix (serious) bug in the boundary conditions (sign error in the implicit
224       part) of the LSR solver. Changes all LSR results.
225     - fixed problem with HSNOW initialization to avoid thick snow when AREA
226       is initilized with small values - does not change lab_sea results.
227     - added HsnowFile initialization capability
228    o pkg/smooth: addition to model/src and pkg/ctrl so allow
229     initialization of pkg/smooth and application to control vector
230    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
231    o dependencies: pkg/profiles requires pkg/cal
232    o pkg/profiles:
233     - added option ALLOW_PROFILES_GENERICGRID
234         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
235         that interpolation information (grid points and coefficients) is provided
236         within the netcdf input files.
237         -> sample matlab scripts can be found in MITgcm_contrib/gael
238         that allow you to prepare netcdf input files.
239     - also modified: cleaner include statements, cleaner error print statements,
240       cleaner stops when error, and more tests of the netcdf input files consistency.
241    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
242    o pkg/seaice:
243     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
244       requires a new routine: seaice_diagnostics_fill.F
245     - make sure that seaice does not move if not forced (pressure replacement
246       method, Hibler and Ip, 1995), changes results
247     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
248     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
249       It is turned off by default (=-1.), because it changes the results.
250     - make it possible to read AREA from a file, too.
251    
252    checkpoint59c
253    o add S/R and diagnostics for oceanic mixed-layer depth
254    o move GMRedi call after all vertical mixing schemes (including KPP)
255    o pkg/thsice:
256     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
257      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
258    o pkg/obcs:
259     - bug fix for balance code
260    o pkg/seaice:
261      - allow values of SEAICE_elasticParm > 1
262      - add new parameter SEAICE_evpTauRelax as an alternative
263        to SEAICE_elasticParm
264      - make lsr boundary conditions free slip (by default), changes result
265      - add code for no slip boundary conditions for lsr
266      - set minimum of zeta to zero (and not 4e8) (changes results)
267      - add a cap on AREA after advecting AREA if seaice_growth is not called
268    o change calculation of Visbeck K:
269      - no longer depend on tapering scheme; instead, compute slope (limited
270        by GM_maxSlope). this is equivalent to what was comuted before with
271        clipping or linear tappering.
272      - fix vertical averaging (wrong by 1/2 level)
273      - leave the old version (but will not be maintained) within
274        #ifdef OLD_VISBECK_CALC / #endif
275      - update output of exp. ideal_2D_oce
276    o change error catch in calc_r_star to improve vectorization
277    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
278      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
279    o adjoint:
280      Re-organized adjoint checkpointing according to Matt Mazloff
281      (but with modifs/completions/cleanups)
282      Storing is now bundled into large arrays to optimized I/O
283      (and second step in cleanup of the_main_loop)
284    
285    checkpoint59b
286    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
287      - export/import (between ocean & coupler) fields needed for ocean DIC.
288    o pkg/seaice:
289      - get rid of three more exchanges seaice_calc_viscosities (required
290        different loop boundaries in seaice_lsr and seaice_ocean_stress)
291      - bug fix in seaice_ocean_stress (update of lab_sea required)
292      - reduce loop boundaries to necessary minimum also in seaice_evp
293      - go back to the old way of computing deltaC/Z as the adjoint likes that
294        better
295    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
296      passive tracer to an Age Tracer) + update output.txt
297    o pkg/exf:
298      - implement A-grid / C-grid selection for wind-stress input files.
299      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
300      for now, in exf_bulk_largeyeager04.F only :
301      - change implementation for case where windspeed + 2. components wind-stress
302        are read-in. AND use rhoConstFresh to convert evap.
303    o pkg/seaice:
304      - use correct EXCH_UV for wind-forcing (on A-grid).
305      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
306        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
307    o pkg/exf:
308      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
309      EXF_INTERPOLATION:
310      - merge global_with_exf/code version of exf_interp_read.F
311        to the main code ;
312      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
313        reading the file ; Important: This options needs to be defined to recover
314        previous code.
315        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
316      - no longer loose real*8 precision along the way when using exf_iprec=64.
317    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
318      - change discretisation of evp-solver in order to avoid another exchange
319        (changes lab_sea) and clean up a little
320      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
321        help the adjoint (this also changes the results slightly)
322      - add a few "_d 0" where they had been missing in seaice_evp.F
323      - cleaning up: remove unused seaice_calc_rhs.F
324    o pkg/exf: some cleaning-up:
325      - change various "constants" into runtime parameters
326      - cleaned-up Large&Yeager04 routine which should eventually
327        replace exf_bulkformulae.F (changed names of S/R and CPP)
328        and merged various ALLOW_ATM_WIND options
329     only used with thsice pkg (in thsice_get_exf.F):
330      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
331        which are used when useStabilityFct_overIce=TRUE (= the default)
332      - change default values of ice & snow emissivity and scale downward LW
333        by ice & snow emissivity.
334    o pkg/thsice:
335     fix few little problems, in thsice_calc_thickn.F:
336      - growth vertically (and not laterally) if iceFrac == iceMaskMax
337      - melt only laterally if hIce < hThinIce (as the comments say)
338      and in thsice_extend.F:
339      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
340      - start to form ice as soon as the minimum ice-volume is reachable.
341     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
342      and cpl_aim+ocn
343    o pkg/kpp
344     - move computation of surface related input fields to KPP into a new
345       subroutine kpp_forcing_surf.F
346     - remove wrong (within bi,bj loops) EXCH calls.
347     - little cleaning (add argument myThid in last position, cvs header ...)
348     - for now, fix conservation problem by exchanging KPPviscAz (may not
349       be the best fix)
350    o pkg/seaice
351     - check for inconsistent evp parameter/cpp-flag combination
352     - remove leftover errIO flat for obsolete name list error handling
353    o OpenAD
354     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
355    
356    checkpoint59a
357    o pkg/seaice: some parameter clarifications and a little bit of clean up
358    o pkg/thsice: rename run-time parameters:
359       himin       -> hIceMin
360       himin0      -> hThinIce
361       hihig       -> hThickIce
362       i0          -> i0swFrac
363       transCoef   -> bMeltCoef
364       frac_energy -> fracMelting
365      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
366       with default values (for now) that do not change the results.
367      remove old version of thsice vars advection in pkg/seaice.
368    o in FFIELDS.h:
369      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
370      - make pLoad & sIceLoad always available (but still only used if
371         ATMOSPHERIC_LOADING is #define).
372    o pkg/kpp: replaced _KPP_RL with _RL
373    o bug fixes for vertical diffusivity computations when both KPP and
374        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
375        are no longer updating the vertical diffusivity array
376        (passed as argument) but are (re-) setting those arrays.
377    o pkg/seaice: fix bug in evp solver, while doing that
378      - change (improve?) discretization of stress computations for both
379        cgrid-lsr and evp solver
380      - add a new routine to compute strain rates
381      - the above changes lab_sea results
382      - add no slip conditions for evp solver (off by default), lsr-version
383        may follow
384      - fix exchange for shear at Z-points (does not change lab_sea)
385      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
386        (to force the user to pick a time step since there is not "safe" way
387        of choosing it)
388      - add principal stress diagnostics
389      - rearrange fields for evp a little to avoid having to call a: too many
390        exchanges and b: exchanges for stress trensor components which we do
391        not have.
392      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
393        of evp, complete rewrite for lsr case (latter is does not yet work
394        in all cases)
395    o pkg/kpp: add code to have mixing in shelf ice caverns
396      - add myThid to all kpp routines (long overdue)
397    
398    checkpoint59
399    o pkg/exf:
400      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
401        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
402      - move exf header files from lower_case.h to UPPER_CASE.h ;
403        add missing cvs Header & Name
404      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
405      - add namelist param. selectStressGridPosition, exf_monFreq
406      - retire many _CLIM routines, and remove data.exf_clim
407        + params moved to data.exf
408        + climsst, climsss now handled by exf_set_gen, i.e.
409          climss?period=0 refers to constant field,
410          climss?period=-12 to monthly forcing
411      - split up namelists in data.exf
412    o pkg/seaice:
413      - remove seaice_exch and seaice_exch_uv
414      - remove superfluous exchange of theta
415      - add myThid to seaice_budget_ocean/ice
416      - add new interface for atmospheric wind forcing (C-grid only)
417        + new routine
418        + two new field (taux, tauy for stress over ice)
419        + removed one global field (DAIRN) for C-grid case only
420    o pkg/thsise
421      - 2nd set of modifs for thsice adjoint in conjunction with exf
422    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
423    
424    checkpoint58y_post
425    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
426      vertical diffusivity, similar to that in MOM4; turned on using
427      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
428      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
429    o Added capability for 3D specification of background vertical diffusion
430      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
431      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
432      "data" file that contains the 3D vertical diffusivity coefficients.
433    o ice dynamics (pkg/seaice) with thsice thermodynamics:
434      - add code within pkg thsice to advect & diffuse sea-ice fields
435      similar to (and will replace) what has been added in  seaice_advdiff.F,
436      but: - conserving Mass, Heat & Salt.
437           - better when using non-linear advection scheme (not yet fully tested)
438           - can also be used in atmospheric set-up (for now, only the diffusion).
439    
440    checkpoint58x_post
441    o IO option for global-file compact format:
442      - add options when generating topology (utils/exch2/matlab-topology-generator)
443      - add I/O capability (pkg/mdsio).
444      - adapt utils/matlab/rdmds.m to read this format.
445      for now long-line format not yet supported by pkg/mdsio (& exch2).
446    o shelfice: add a few diagnostics
447    
448    checkpoint58w_post
449    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
450      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
451      (and replace horiVertRatio in NH code).
452      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
453                         and tutorial_plume_on_slope (sensitive to truncation)
454    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
455      directly to drive seaice model (C-grid only)
456    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
457     - reintroduce computation of wind from stress,
458     - compute tau (in exf_bulkformulae.F) from windstress averaged to
459       mass points to avoid tau = 0
460     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
461    o rdmnc.m: make it work with "global" files created with gluemnc
462    o rdmnc.m : some improvements in dealing with singleton dimension
463      (tested on all testreport mnc output files).
464    o genmake2: disable pkg/profiles if netcdf test fails.
465    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
466    o move call to cal_readparms up to make calendar parameters/variable available
467      to all packages
468    
469    checkpoint58v_post
470    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
471      useDynP_inEos_Zc tested.
472    o pkg/exf: changes to properly interpolate/mask/scale initial fields
473    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
474      and portions thereof.  See read_cs.txt for description and examples.
475    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
476      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
477      following the great-circle arc between those 2 points.
478    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
479      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
480    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
481     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
482     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
483     - still needs work (not working with some options ; efficiency to improve)
484       and serious testing.
485     - use this scheme for temperature & salinity in 2 advection test exp.:
486       advect_xy & advect_xz, respectively.
487    
488    checkpoint58u_post
489    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
490    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
491    o testreport: add option "-skipdir" to skip some test.
492    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
493      momentum calculation.
494    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
495    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
496      remove checkpoint.F and the_correction_step.F (no longer used);
497      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
498    o add option (linFSConserveTr) to correct for tracer source/sink due to
499      Linear Free surface
500    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
501    o pkg/thsice: fix reading mnc-pickups
502    
503    checkpoint58t_post
504    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
505    o pkg/mdsio:
506     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
507       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
508       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
509     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
510     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
511       either MDS_READ_FIELD or MDS_WRITE_FIELD )
512     - new S/R (to replace MDSWRITEMETA), which allows to write more
513       informations (variable names, time ...) to meta files.
514     - modify rdmds.m to give back the meta file content.
515    o pkg/diagnostics: change vertical interpolation to be safer, and more
516       flexible (define p-levels to interpolate to in data.diagnostics);
517      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
518       diagnostic pointer.
519    o pkg/seaice: more cleaning up of seaice_growth, added many comments
520    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
521    o fix multi-category seaice:
522     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
523       SEAICE_MULTICATEGORY
524     - fix short wave heat flux
525    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
526       and allow to use EVP solver. Change forward lab_sea: test both EVP
527       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
528    o Initial check-in of lab_sea adjoint
529      (very similar to natl_box_adjoint/code_seaice)
530      * used C-grid and EVP solver
531      * used KPP, GM/Redi
532      * uses inAdExact=.TRUE.
533      * gradient checks fail for both ADM and TLM
534        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
535        f.d. gradients actually seem more problematic than ADM, TLM gradients;
536        issue is related to forward mismatch between g77 an ifort
537    o pkg/seaice: overhaul of thermodynamics
538     - growth.F and groatb.F are replaced by new routine seaice_growth.F
539     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
540     - move a few global fields out of SEAICE.h into seaice_growth.F and
541       make them 2D (FICE/QNETO/ ...)
542     - remove FO (it is the same as QNETO)
543     - introduce a few local fields to avoid modifying external fields such
544       as atemp, etc.
545    
546    checkpoint58s_post
547    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
548      changed exf_set_gen.F so that
549        genperiod=0 means input file is one time-constant field and
550        genperiod=-12 means input file contains 12 monthly means
551    o CG2D: use pre-computed solver main-diagonal (stored in common block);
552      this affects truncation error ; generate new output file for exp. which
553      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
554        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
555        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
556        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
557        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
558        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
559    o start implementation of deep-atmosphere and anelastic formulation
560    o verification: remove 2nd copy of input files and use script "prepare_run"
561      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
562    o mom_common/vecinv/fluxform: fix a few initialisation isssues
563    o profiles: fix for multithreaded case
564    
565    o diagnostics: rename few diags:
566      s/'PRESSURE'/'RCENTER '/g
567      s/'TICE    '/'oceFreez'/g
568      s/'TAUX    '/'oceTAUX '/g
569      s/'TAUY    '/'oceTAUY '/g
570      s/'SWFLUX  '/'oceQsw  '/g
571      s/DIFx/DFxE/g
572      s/DIFy/DFyE/g
573      and add few ocean-forcing diagnostics:
574      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
575    o modifications to pkg/seaice/growth.F and budget.F, which change results of
576      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
577      as actual snow thickness.  It now refers everywhere to effective snow
578      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
579    
580    checkpoint58r_post
581    o modifications to pkg/seaice/growth.F, which change results of
582      lab_sea experiment: fixes pertain to melting snow over open water, to
583      masking EVAP under sea ice, and to using the correct AREA variable for
584      computations of EVAP, PRECIP, HSNOW, and GHEFF
585    o add ability to read bathy, salt, and theta using MNC (off by def)
586    o add flooding algorithm and advection of HSNOW for pkg/seaice;
587      both are turned off by default and do no change any results
588    o seaice advection with pkg/thsice: a step toward the use of non-linear
589      advection scheme, but #ifdef or commented out for now (requires more EXCH).
590    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
591      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
592      in natl_box (affects results @ truncation level: update output.txt)
593    o multi-threading and IO:
594      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
595      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
596        (needed to work with SingleCpuIO): tested in all verif. exp.
597    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
598      affects the results (but none of the verification test uses this scheme).
599    o Adding some pkg/diagnostics capability to pkg/seaice
600      (will certainly be subject to changes)
601    o ctrl: adding new control variables:
602      lwflux, lwdown, evap, snowprecip, apressure, runoff
603    
604    checkpoint58q_post
605    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
606      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
607      high_res_cube configuration by 4% on Columbia.
608    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
609      add (in global_with_exf/code) a version of EXF_INTERP_READ without
610      dynamical allocation (seems to work in multi-threaded).
611    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
612      single CPU io) so that TAF does not have to see EESUPPORT.h
613    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
614    
615    checkpoint58p_post
616    o obcs: stop if obcs is used with useCDscheme = .true.
617    o shelfice:
618     - fix a sign error so that no slip at shelfice interface works
619     - remove stop for combination non-hydrostatic code and shelfice. That does
620       not mean, that the results are correct, but at least they are numerically
621       stable
622    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
623    o added adjoint exch routined for all exch*3d* routines
624      and updated flow directives
625    
626    checkpoint58o_post
627    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
628      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
629    o change controling S/R for writing pickup file (new S/R do_write_pickup)
630      and clean-up reading/writing of pickup files.
631    o fix local version of read/write pickup (NH part) in rotating_tank/code
632    o simplify EXCH interface:
633     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
634     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
635    o added the regrid package
636    o shelfice:
637     - add a simple boundary layer scheme to reduce noise
638     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
639    
640    checkpoint58n_post
641    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
642       local variable (not in common block).
643    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
644      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
645      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
646        to work with SingleCpuIO.
647    o add "_d 0" to real constant of pkg/cfc subroutines ;
648       update exp. cfc_exemple & tutorial_cfc_offline output files.
649    o multi-threading and IO:
650      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
651        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
652      - barrier before and after reading.
653      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
654      - avoid using MDS_WRITELOCAL for LAND pkg output.
655      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
656        common-block variables ; Allows multi-threading with master-thread IO.
657    o change default MAX_NO_THREADS from 32 to 4 ;
658      and stop cleanly when MAX_NO_THREADS is too small.
659    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
660    
661    checkpoint58m_post
662    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
663       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
664    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
665       keep global_ocean.90x40x15 (for AD testing) with former secondary test
666       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
667    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
668        add MITgcm_tutorials (= code + all the tutorials)
669    o ecco, option to compute cost for total ssh (mean+anom)
670    o consistent with addition of ptracer and ssh in pkg/profiles
671    o profiles: adding ptracer and ssh
672    o testreport: change multi-test output-file name
673      (from output.txt.{name} to output.{name}.txt)
674    o profiles: now ok for mutli-tiles case
675    o seaice: add 4 parameters for different advection schemes for area,
676      (effective) seaice thickness, enthalphy, and snow height. Their default
677      is the standard parameter SEAICEadvScheme
678    o calc_gw:
679     - add cosFacU in zonal viscous flux (harmonic.visc.).
680     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
681       of tutorial_plume_on_slope.
682    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
683    o calc_gw: true flux-form, account for horizontal grid spacing.
684      update rotating_tank results, but not plume_on_slope (affected at
685      truncation level, 11 digits).
686    
687    checkpoint58l_post
688    o calc_gw:
689     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
690     - remove side-drag for now (need to fix it); update plume_on_slope results.
691     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
692    o commit code to make SST/SSS weights spatially variable
693      (based on either variable in-situ or variable initial T/S weights)
694    o pkg/ecco:
695      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
696        now based on horizontally varying weights wthetaLev, wsaltLev
697      * cost_averagesflags now returns year indices in addition to day, month
698      * sflux balance is performed on annual basis
699        (sflxumm, sfluxmm2, bal_sfluxmm)
700      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
701        including separate counting and multipliers
702    o pkg/rbcs
703      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
704    
705    checkpoint58k_post
706    o testreport:
707     - always build in dir. "build" (if not there, mkdir build instead of building
708       & running in input)
709     - run in dir run (if it exists), in build otherwise.
710     - call prepare_run (if input/prepare_run exists)
711     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
712    o pkg/exf modifications to interpolation and rotation routines for more
713       reasonable treatment of North Pole singularity: for tracers North Pole
714       value is set to northernmost zonal-mean value, for zonal velocity it is
715       set to zero, and for meridional velocity it is set to northernmost value.
716    o pkg/exf/exf_check_range.F
717     - add tile index to diagnostics and move stop statement to the very
718       end of the routine.
719    o pkg/diagnostics: (diagnostics_main_init.F)
720      define title of isomorphic variables according to the current config.
721    o pkg/thsice with pkg/seaice dynamics:
722    - fix domain of computation (interior only, required for exf) and do exchanges
723    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
724    o towards a standard way of dealing with multi-threading in MONITOR
725      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
726    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
727       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
728    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
729    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
730    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
731       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
732    o tracer advection:
733     - clean-up and simplify calc_common_factors.F
734     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
735       advection subroutine (but still not used within DST advection S/R)
736    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
737    
738    checkpoint58j_post
739    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
740      from file (collects calls previously in FORWARD_STEP)
741    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
742    o adjoint store dir. adjusted accordingly
743    o genmake2
744      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
745    
746    checkpoint58i_post
747    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
748      on wind stress (SEAICEstressFactor defaults to 1.)
749    o Total number of Timers is finite (<=40): comment out 2 non-essential one
750      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
751    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
752      on CS-grid: no longer loosing mass.
753    o exf & curvilinear-grid: no longer modify longitude xC & xG.
754    o pkg/ggl90: fix sloppy output and fix a bug
755    o pkg/seaice: added SEAICEuseEVPpickup parameter
756      - Set to false in order to start EVP solver with
757        non-EVP pickup files when using SEAICEuseEVP
758      - fix sign error in diffusion in seaice_calc_rhs
759    
760    checkpoint58h_post
761    * Modifications for bottom topography control
762      o replace hFacC by _hFacC at various places
763      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
764      o add non-self-adjoint cg2d_nsa
765      o update autodiff support routines
766      o re-initialise hfac after ctrl_depth_ini
767      o works for 5x5 box, doesnt work for global_ocean.90x40x15
768    * Adding verification for 5x5 box (4-layer) bottom topography control
769    
770    checkpoint58g_post
771    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
772       used for mean seasonal cycle, mean diurnal cycle); add an example
773       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
774    o pkg/ggl90:
775      - add parameter (minimum surface kinetic energy)
776      - fix bug (avoiding division by zero)
777    o couple pkg/thsice to pkg/seaice:
778      - modify advection in seaice to accomodate new scalar fields to be advected
779      - only muliDimAdection scheme work with seaice/thsice
780      - mapping of thsice-variables to seaice-variables, back and forth
781      - does not break the verification experiments, but does not give the
782        desired results either
783    o pkg/seaice
784      - make (default) second order advection a bit less confusing?
785    
786    checkpoint58f_post
787    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
788      to pkg/seaice):
789      - new routines thsice_map_exf and thsice_get_exf provide the interface
790      - add an additional formal parameter to thsice_solve4temp
791    o pkg/exf:
792      - add new fields wspeed, snowprecip (to be able to couple to thsice)
793      - correct Stefan-Boltzmann constant
794      - new parameter for longwave surface emittance
795      - separate some stuff from exf_bulkformulae into new routines  
796        exf_radiation, exf_wind
797      - add new parameters and constants: longwave emissivity for ocean, ice
798        and snow, evaporation parameters over ice
799      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
800        either wind from stress or stress from wind
801    o pkg/thSIce:
802    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
803    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
804       and THSICE_CALC_THICKN
805    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
806    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
807      to make debugging easier.
808    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
809    o pkg/bulk_force:
810      - clean-up comments and parameters ;
811      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
812    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
813      generate new output for test-experiment: aim.5l_cs.thSI
814    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
815      testreport accordingly
816    
817    checkpoint58e_post
818    o SEAICE_CGRID adjoint done
819    o R_STAR adjoint implemented.
820      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
821      * need to sort out init. of h0facc, etc.
822    o Make pkg/profile fully independent of ecco,cost, etc. stuff
823      to be able to use it in pure forward.
824    
825    checkpoint58d_post
826    o upgrade simple test-experiment to tutorial example:
827     step.1: duplicate the experiment and (step.2) will remove the old copy.
828      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
829      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
830      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
831      tutorial_global_oce_biogeo    <- copy of dic_example
832      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
833      tutorial_plume_on_slope       <- copy of plume_on_slope
834      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
835      tutorial_global_oce_optim     <- empty for now (David ?)
836      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
837     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
838    o correct a sign problem in cost_scat.F
839    o obcs and ptracers: fix boundary conditions for advections schemes
840      with larger stencil
841    o thsice adjoint: start
842    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
843      completeness
844    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
845      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
846    o ptracers adjoint:
847      * avoid extensive recomputatations
848      * fix missing re-init. of gptr (missed by TAF)
849    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
850      me to turn off the excessive output to STDOUT that this package produces
851    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
852      and add those terms in Vector-Invariant formulation.
853    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
854      if the control period (xx_hfluxperiod etc) is 0
855    o in profiles pkg, clean routines and fix details
856    o in ecco pkg, reading ssh data:
857      fix problem in case the model does not start at iter0=0
858    o fix mnc-pickup/restart for ptracers
859    o new package prifiles:
860      code to compute profile-based cost by Gael Forget
861      (modifs in ecco, ctrl, autodiff)
862    o Benign bug fix in initialization (spotted by M. Mazloff) of
863      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
864    
865    checkpoint58c_post
866    o adjoint: finish NLFS adjoint and provide reference output in
867      verification/global_ocean.90x40x15/results_ad_nlfs
868    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
869      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
870      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
871      with SEAICE_CGRID defined.
872    o move calendarDumps from "data" to "data.cal" and clean-up the code
873      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
874    o add useEXF & useCAL flags (for now, set in hard-coded way)
875    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
876      (were missing in NH mode, and wrong in quasihydrostatic mode).
877      waiting for Chris updated version of calc_gw to add those CALLs.
878    o fix bug in quasihydrostatic S/R ;
879      add a test for this option: global_ocean.90x40x15.qshyd
880    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
881      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
882    o add on/off flag useOffLine for package OFFLINE
883    o seaice:
884      - modify advection so that it works also on the C-grid
885      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
886        problem in multi-tile runs with C-grid
887      - add flags for clipping ice velocities and/or masking solver forcing
888      - fix drag (ocean on ice) formulation and a bug that caused noise in the
889        C-grid solver
890      - added a few comments to seaice_diffusion.F
891      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
892        are now exclusive)
893      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
894        required re-ordering the code a little:
895       + make DAIRN global variable (defined in SEAICE)
896       + move computation of the viscosities eta and zeta into a new separate
897         routine (because I need to recompute them in seaice_ocean_stress.F)
898    
899    checkpoint58b_post
900    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
901      update output.txt of exp. aim.5l_cs.thSI
902    o various mnc cleanups and improvements:
903      + shrink lookup tables by factor of ~4
904      + better error reporting when running out of lookup space
905      + able to handle longer path/file names (up to 500 chars)
906    o adjoint:
907      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
908      - TBD: "hidden" mom_vecinv recomp. in dynamics
909    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
910     (allow to differentiate between forcing components using new integer flags:
911      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
912     and add new flag to put Dissipation tendency out of Adams-Bashforth.
913    o ecco
914      - enable trend removal from SSH anomaly obs.
915    o adjoint
916      - a fix for PmEpR when #undef EXACT_CONSERV
917      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
918      - try to fix "hidden" recomp. in forward_step for NLFS
919        (NLFS seems broken sometimes after I checked it in)
920    o seaice:
921     - add c-grid version of the dynamic solver:
922       + three new routines that are the c-grid substitute lsr, dynsolver
923         and ostres
924       + put a few fields that were local to dynsolver into global common
925         blocks, so that I can move the computation of stresses etc into
926         seaice_lsr (saves coding but may break the adjoint).
927     - replace more hardwired parameters by runtime parameters
928     - add ice masks that mask the rhs of the implicit solvers where there
929       is no ice (commented out in seaice_dynsolver, because i am not sure
930       if this works properly), eventually this should replace the clipping
931       of ice velocities in seaice_dynsolver to +/-40cm/s.
932    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
933      include it only where its needed
934    o move balancing of fluxes before the call of external_forcing_surf
935    o seaice:
936      - correct units of turning angles (now they are really in degrees)
937      - move computation of GWATX/Y out of main routine into dynsolver
938      - initialize GWATX/Y in seaice_init
939    o Apply mask on Fresh-Water flux (needed for SSH forcing).
940      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
941    o seaice: add runtime flags for turning angles (default to zero)
942    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
943      and trend from exf forcing and ctrl control adjustments
944    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
945      (since checkpoint57x_post)
946    o change the default rotation period to 86164.s = the Earth rotation
947    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
948      and based on a reference stratification. Tested within hs94.cs-32x32x5.
949    o seaice advection: add code for choosing between the default (2nd order
950      central differences) and multiDim advection schemes provided by
951      pkg/generic_advdiff
952    o seaice:
953      - removed all references to SEAICE_GRID.h fields from
954        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
955        (cubed-sphere configuration will change a little)
956      - grid computations in seaice_init are obsolete now.
957      - cleaned up code a little so that is easier to read (hopefully).
958      - added new (better?) discretizations of default advection and diffusion
959        (turn on with SEAICEuseFluxForm)
960      - replace 1 in 3d global fields by kSurface in growth.F
961      
962    checkpoint58a_post
963    o seaice:
964      - bug fix in advect.F
965    o shelfice:
966      - separate shelfice load anomaly from pload (breaks with time
967        dependent forcing), => introduce constant field shelficeLoadAnomaly.
968        Its default is 0., but it may be computed more cleverly from (unknown)
969        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
970        done offline. A good approximation of the pressure load anomaly is
971        necessary to avoid large initial adjustment processes underneath
972        deep-reaching shelfice.
973      - small fix in ISOMIP shelfice_thermodynamics
974      - add more sophisticated thermodynamics of Hellmer (1989), this is
975        now the default
976      - give a few constants more intuitive names
977    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
978      if bulk formulae are used in long integration (especially EmPmR). Turn
979      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
980      if balancePrintMean, the imbalance that is substracted is printed to
981      STDOUT.
982    o fix bug (typo) in obcs_apply_eta.F
983    o add a new package shelfice which enables us to model the circulation
984      underneath shelf-ice with draughts of hundreds of meters.
985     - works
986     - to do: + include improved thermodynamics
987              + check whether kSurfC (from model/inc/SURFACE.h) can be used
988                instead of new field kTopC
989              + can we use topoFile, Ro_surf and existing code in ini_depth.F
990                instead of new field R_shelfIce and new code in ini_depth.F
991                and ini_mask_etc.F?
992              + adjust vertical mixing schemes?
993    o seaice pkg:
994     - add a cpp-flag to include a simple formula for a salinity dependent
995       freezing point of sea water at the surface
996     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
997       meridional stresses are now different (and hopefully correct)
998    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
999       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1000       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1001    o pkg/diagnostics: add options and parameters for regional-statistics
1002       diagnostics ; define regions by reading a region-mask from a file
1003       (might add other options later)
1004    o pkg/bulk_force:
1005     - add option and parameters to use AIM surface-flux formulae.
1006     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1007       others forcing fields (defined in PARM05, parameter file "data") are loaded
1008       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1009     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1010     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1011     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1012       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1013     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1014    
1015    checkpoint58
1016    o add "--embed-source" option to genmake2 which, when the supporting
1017      tools can be compiled (as determined by genmake2) will turn on the
1018      embed_files package which then embeds the entire MITgcm source code
1019      (*.[fFhc] + Makefile) used for the build within the executable
1020      - requested by CNH but off by default
1021      - adds a paltry <9MB to the mitgcmuv executable in most cases
1022      - only writes the output when useEMBEDSRC in eedata is true
1023    o clean up 3-dim. relaxation codes:
1024      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1025      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1026      * Thanks to Tom Haine for testing!
1027    
1028    checkpoint57z_post
1029    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1030      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1031    o fix the pickup behavior for obcs in combination with ptracers
1032    o fix a bug in ptracers_external_fields_load
1033    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1034      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1035    o transfered surface NH pressure to eta field (if exactConserv).
1036    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1037         and update lab_sea output.txt file.
1038    o completing 3-dim. relaxation code: additional term
1039         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1040      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1041      * At compile time, in "EXF_OPTIONS.h" set
1042          #define  ALLOW_CLIMTEMP_RELAXATION
1043          #define  ALLOW_CLIMSALT_RELAXATION
1044      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1045          tauThetaClimRelax3Dim = 15552000.0,
1046          tauSaltClimRelax3Dim  = 15552000.0,
1047      * 3 cases:
1048          1) Use a constant-in-time 3-dim. field
1049          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1050          3) Real-time relax. to time-evolving prescribed field
1051    o Adding Laplacian-type smoothness constraint on
1052      initial and boundary (forcing) controls (ic, bc)
1053      * enable at compile-time via
1054        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1055      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1056      * Absolute scale somewhat unclear so far
1057      * no area weighting was included since no other cost term does so far
1058    
1059    checkpoint57y_post
1060    First step for a NLFS adjoint
1061    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1062    o new init. routines for calc_r_star, calc_surf_dr
1063    o still need to deal with ini_masks_etc
1064    o testreport seemed happy
1065    checkpoint57y_pre
1066    
1067    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1068    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1069    o add new offset feature to offline pkg (plus minor cleanup)
1070    o cfc fixes for final year of integration
1071    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1072      be in GCHEM_OPTIONS).
1073    
1074    checkpoint57x_post
1075    o fix testreport Pb in multiple test experiment.
1076    o cleanup our namelist syntax in verification:
1077      - make it more F95 standards compliant (some work still needed)
1078      - allows the vast majority of our tests to work with gfortran
1079    o Non-Hydrostatic:
1080     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1081     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1082    o Allow to apply AB on T,S rather than on AB(gT,gS):
1083     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1084     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1085       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1086     - need a "clever" read_pickup to restart from the other AB formulation
1087    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1088    o remove some unused variables (reduces number of compiler warnings)
1089    o adjoint
1090      * Disable useVariableViscosity for adjoint for time being
1091        (there are a number of extensive recomputations)
1092      * Initialize certain variables needed for adjoint
1093    
1094    checkpoint57w_post
1095    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1096                 fix the singleCpuIO RS version of MDSWRITEFIELD
1097       and add a WARNING if using globalFiles=T with multi-processors.
1098    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1099      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1100    o tracer advection scheme:
1101      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1102       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1103       was not very convenient).
1104      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1105       (further tests needed for the implicit DST & Flux-Limiter schemes).
1106    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1107      and sRef for convenience, handy, when you want to initialize
1108      ptracers in a large domain with a constant non-zero value. Also,
1109      untangle ptracers_init.F a little.
1110    
1111    checkpoint57v_post
1112    o change dome exp. to use variable viscosity in side-drag terms.
1113    o remove all the files from the cfc_offline test since they are now
1114      incorporated into tutorial_cfc_offline which has been producing
1115      identical results for a few days of testing
1116    o add new parameter: sideDragFactor to enable half-slip-side BC
1117      and change side-drag S/R to use viscosity from mom_calc_visc
1118      (can switch back by setting sideDragFactor=0.); affects results at
1119      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1120       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1121    o vorticity & strain are now computed without masking, to account for
1122      no-slip-side BC in variable viscosity calculation ; mask is applied
1123      anyway later on, before computing advection/coriolis terms.
1124    o modify exp4 to test new obcs support for reading from external files
1125      and for passive tracers
1126    o fix behavior of ptracers_monitor when monitor output is written to a
1127      netcdf-file; still not independent of monitor.F (writes in the same
1128      file).
1129    o change default value of tRef (put a uniform, meaningful value for ocean
1130      & atmos) and initialize sRef (was missing, as Martin mentioned).
1131    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1132      to be proportional to enstrophy dissipation length.  Thus,
1133       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1134      This is now consistent with Smagorinsky and with the manual.
1135    
1136    checkpoint57u_post
1137    o OBCS and PTRACERS: add open boundary support for passive tracers
1138      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1139        OB-values from file; this is not different from the way theta and salinity
1140        are treated
1141      - however, Orlanski-radiation conditions are not supported, and the model
1142        will stop if you use pTracers and Orlanski at the same time.
1143      - beefed up the rountine obcs_external_fields_load: now only those open
1144        boundary values are overwritten with values from files for which there
1145        are really files, otherwise the OB-fields remain untouched. This makes
1146        it possible to use different OBs at different ends of the domain (as
1147        with EXF)
1148    o reduce number of exch calls in shap_filt (s2).
1149    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1150      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1151    
1152    checkpoint57t_post
1153    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1154    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1155      same truncation, independent of the face number: affects affects several
1156      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1157    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1158      note that biharmonic viscosity + no-slip was not tested in any experiment.
1159    o fix bug in non-linear free-surf side-drag ; generate new output for
1160      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1161    o make mnc honor the writeBinaryPrec flag for most kinds of output
1162    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1163    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1164      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1165    o add brackets in multi-terms sum to get same truncation, independent of
1166      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1167      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1168    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1169      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1170      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1171      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1172      Suggested values of viscosity parameters found in mom_calc_visc.
1173      Many new viscosity diagnostics available.
1174    
1175    checkpoint57s_post
1176    o Add clearing-house for viscosity calculations, mom_calc_visc and
1177      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1178      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1179      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1180      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1181      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1182      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1183      ViscAhStrain and viscAhTension are now retired.
1184    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1185    o In response to JMC's bug report, genmake2 now ignores any soft-links
1186      that it finds in the *current* directory when searching for files.
1187      Soft-links found in any other source directories will still work as
1188      they did before.
1189    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1190      a C routine to unlimit the stack size
1191    o mnc-ify pkg/aim snapshot vars
1192    o mnc-ify pkg/land as requested by Daniel
1193    o various changes to mnc including:
1194      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1195      - output can now be grouped so that all files within a group
1196          change the ITER portion of their names in lock-step together
1197      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1198          and works with both EXCH1 and EXCH2 (but needs more testing)
1199      - writing works for all verification test cases w/ g77 on Linux
1200    
1201    checkpoint57r_post
1202    o make MNC variable initialization happen earlier
1203    o add diagnostics for (almost) each term of the momentum Eq.
1204    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1205    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1206    o remove MINIMAL_TAVE_OUTPUT option ;
1207      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1208    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1209      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1210    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1211    o add time-dependent SST, SSS control
1212    o cost terms in ecco/ modularized (new cost_generic.F)
1213    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1214    o new infrastructure for seaice model vs. obs misfits in seaice/
1215      * driver from the_main_loop.F is seaice_cost_driver.F
1216      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1217      * gradient check in Exp. 6a of natl_box_adjoint/
1218    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1219      (see README file)
1220    
1221    checkpoint57q_post
1222    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1223    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1224      - bug was reported by Jean-Michel and Ian Fenty
1225    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1226      update exp. cpl_aim+ocn output.
1227    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1228      Needed for high-res. runs with large global files
1229      to be able to limit tapelev size
1230    o Changed some tests for adjoint:
1231      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1232      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1233      * global_ocean.90x40x15/ back to default 3-level checkpointing
1234    o Modifications to enable scripted COMMON to MODULE conversion
1235      * verification/OpenAD/code/ has necessary scripts and description;
1236      * converts, compiles and runs successfully;
1237    
1238    checkpoint57p_post
1239    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1240    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1241      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1242    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1243    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1244      (was already the case for dissipation with mom_vecinv,
1245       and also the case for grad.PhiHyd when staggered-timeStep)
1246      This will allow to put dissipation out-off the AB time-stepping.
1247     Unfortunately, affects truncation error. Update output of exp. that "fails"
1248      (cg2d matching number) and leave the others for later: front_relax(10),
1249      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1250      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1251    
1252    checkpoint57o_post
1253    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1254      (2) its ready to be documented during the 20050801 DocFest
1255    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1256      for ideal_2D_oce and lab_sea on linux_ia32_g77
1257    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1258      in global1x1_tot/code_seaice_adj to access indices 32, 33
1259      (worth another tag)
1260    
1261    checkpoint57n_post
1262    o adding precip control xx_precip 32
1263    o adding swflux control xx_swflux 33
1264    o Replacing 10 forcing penalty cost routines by 1 generic.
1265    o Implementing partitioning in time-mean and variable adjustment
1266      for atmos. state.
1267    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1268    o in natl_box_adjoint:
1269      * updated exp 1 to 10
1270        (but does not have time-mean vs. variable split results yet)
1271    o updated global1x1/*_seaice_adj/
1272      to incorporate latest changes
1273    o enable useSingleCpuIO for mdsio vector routines
1274      (applies in particular to tapelev I/O)
1275    o removed inefficient K-loop in all active_file*control*.F
1276    
1277    checkpoint57m_post
1278    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1279      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1280    o pkg/exch2: filling of face-corner halo regions is optional
1281      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1282    
1283    checkpoint57l_post
1284     tag before updating tutorials (pre-release-2)
1285    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1286       for output and interpolation of input fields onto model grid)
1287    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1288       Affects results of exp. rotating_tank ; update output.txt.
1289    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1290          and taking the square quantity and/or using a fraction-weight field.
1291    o fix aim_diagnostics_init.F mate numbers.
1292    o add mnc output capability to diagnostics/diagstat and update
1293      our cvsignore files for the ACSII output generated
1294    
1295    checkpoint57k_post
1296    o lab_sea now uses diagnostics package and provides a suite of
1297      new EXF diagnostics output.
1298    
1299    checkpoint57j_post
1300    o exf
1301      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1302        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1303        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1304      * extended diagnostics output
1305        - now includes all EXF variables
1306        - hs, hl moved to common block
1307        - separate S/R for diagnostics, called after ctrl vector is added
1308        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1309        - EXFqnet contains true Qnet (i.e. includes qsw)
1310      * updated verif. lab_sea, global_with_exf
1311      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1312        to ensure that diagnostics sees a true EXFqnet
1313    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1314    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1315      several times with different frequencies.
1316    o mnc-ify the thsice package as requested by Daniel Enderton
1317      - the monitor--MNC output needs work
1318      - many attributes need to be added (most are currently blank)
1319    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1320      - many attributes need to be added (most are currently blank)
1321    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1322    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1323    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1324      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1325         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1326    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1327     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1328    
1329    checkpoint57i_post
1330    o Diagnostics package was changed: diagnostic allocation is now deactivated
1331      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1332    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1333      add 1rst Order upwind vertical Shear.
1334    o add a quick fix for A/B checkpointing in OFFLINE mode
1335    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1336      end-run around the C/Fortran linking horror in eesup/src/timers.F
1337    o added pkg/runclock: allows user to terminate run based on wall clock
1338    o added non-hydrostatic scaling parameter: nh_am2
1339    o pkg/my82: futile attempt to make results compiler-independent by adding
1340      some "_d 0", etc. no effect.
1341    o for mnc output, fill the 'T' coordinate var with myTime and create a
1342      separate 'iter' variable for iteration count
1343    o pkg/diagnostics:
1344      add new capability: output of Global/Regional & per-level statistics ;
1345      tested against monitor output (including land & thSIce) on various exp.
1346    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1347    
1348    checkpoint57h_done
1349      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1350      data.diagnostics, data.gchem, data.ptracers) is done.
1351    
1352    o pkg/diagnostics: prepare for Global/Regional statistics.
1353      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1354    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1355      and rename it: DIFFERENT_MULTIPLE
1356    
1357    checkpoint57h_post
1358    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1359    o pkg/diagnostics: change output frequency, now in seconds (instead
1360      of Nb of iterations). This requires to change data.diagnostics.
1361    checkpoint57h_pre
1362    
1363    o in mnc, let the user create the output dir if both mnc_outdir_date
1364      and mnc_outdir_num are false
1365    o add fflags() to pkg/diagnostics which allows one to specify, on a
1366      per-file basis, the file precision [default behavior is unchanged]
1367    o added diagnostics to pkg/kpp, including computation of mixed layer
1368      depth based on a temperature/density criterion
1369    o updated verification/natl_box to test the new pkg/kpp diagnostics
1370    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1371    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1372    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1373      not mnc -- this mistake was found by JMC and is now corrected
1374    
1375    checkpoint57g_post
1376    o add Adams-Bashforth 3rd Order time stepping:
1377      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1378      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1379    checkpoint57g_pre
1380    
1381    o make lambda[Theta,Salt]ClimRelax spatially varying
1382      (default remains spatially uniform constant based on tau)
1383    o added new control variables
1384      * init. uVel, vVel, etanN
1385      * lambda[Theta,Salt]ClimRelax
1386    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1387      (suggested by G. Forget)
1388    
1389    checkpoint57f_post
1390    o add parameter "baseTime" = model base time = time at iteration zero
1391      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1392      account for baseTime shift
1393    o move Coriolis arrays from PARAMS.h to GRID.h
1394    checkpoint57f_pre
1395    
1396    o mnc-ifying the seaice package
1397    o introduced an alternative length scale calculation for use in the limiting
1398      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1399    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1400    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1401      as well as grad(vort3).  Made it compatible with both approximate form
1402      for the cubed sphere and full form of these gradients.  Added flag
1403      useFullLeith to select between approximate and full form.  
1404    o add "d0" in getcon.F to reduce differences between compilers/platforms
1405      update output.txt of exp. fizhi-gridalt-hs
1406    o change port_rand funtion to allow to set the seed.
1407    o fix obscure MNC bug involving conversion between reals and integers
1408      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1409        new version is now more standards-compliant
1410    o adjoint-related modifications
1411      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1412      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1413      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1414    
1415    checkpoint57e_post
1416    o Adding eddy stress controls a la Ferreira et al.
1417    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1418    
1419    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1420      update output.txt of exp. fizhi-gridalt-hs
1421    o add more "Z" dimensions and associated coordinate vars to MNC
1422    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1423    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1424      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1425      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1426      months and years.  Requires pkg/cal.
1427    o diagnostics: add pickup functionality
1428      - off by default for backwards compatibility
1429      - current version only uses MDSIO -- MNC will be added
1430    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1431    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1432    
1433    checkpoint57d_post
1434    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1435    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1436      output from the diagnostics package
1437    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1438    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1439      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1440    o add coordinate variables to the MNC output from the diagnostics package
1441    o change MNC-flags default value: true when useMNC=TRUE
1442    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1443      the ability (off by default) to read the grid information using MNC
1444    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1445    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1446    o do snap-shot diagnostics at the middle of the time-interval (instead of
1447      at the end).
1448    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1449      new test for AIM with thSIce + slab-ocean
1450    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1451    o move state variable diagnostics to the beginning of the time step ;
1452      (note: still needs some work specially for snap-shot diagnostics)
1453      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1454    
1455    checkpoint57c_post
1456    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1457    o generate new output.txt files on faulks with g77 & the new -ieee option
1458    checkpoint57c_pre
1459    
1460    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1461      update output.txt of exp. global_ocean.90x40x15
1462    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1463      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1464    o add saltFlux(+File) forcing capability with periodicExternalForcing
1465    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1466    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1467    o improvements for the MNC output from DIAGNOSTICS:
1468      - correct handling of the unlimitied dimension
1469      - all dims now have associated coordinate variables
1470      - variables located at U, V, and Corner ("Z") points are now written
1471        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1472        *all* data points are output
1473    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1474    o added pkg/seaice/seaice_monitor.F
1475    o mdsio_readfield.F can now read files visible only to master MPI process.
1476    o pkg/seaice: some test code for ice-modified ocean stress
1477    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1478      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1479      spurious negative numbers for precipitation and humidity.  Will cause
1480      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1481    o pkg/ctrl/
1482      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1483        May be enabled via doPackDiag
1484      *  introduce z-scaling of
1485         + gradient (doZscalePack) and
1486         + control (doZscaleUnpack)
1487    o pkg/mdsio/
1488      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1489      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1490    
1491    checkpoint57b_post
1492    o simplify options in diagnostics_fill arguments (remove weird combinations)
1493    o fix MNC coordinate variables so that they now contain per-face index
1494      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1495      general, EXCH2 grids are only aligned to a "local" coordinate system
1496    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1497    o Implement instantaneous output within pkg diagnostics:
1498      setting a negative frequency in data.diagnostics produces
1499     "snap-shot" output (as opposed to time-average if freq > 0)
1500    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1501      NOTE: change ptracer diagnostics name: use 2 characters to work with
1502            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1503    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1504      becomes the coordinate variable for the 'T' dimension
1505    o add CF-style coordinate variables to MNC
1506      - just a first cut:  numbers are meaningless on the cubesphere and
1507        missing along the T axis but otherwise it works!
1508    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1509    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1510    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1511      this is based directly on what the model compute, so that the content of
1512      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1513    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1514    o clean up build options files for SunOS, in particular
1515      - remove -traditional from xmakedepend
1516      - change -xarch=v9 to -xarch=native for f77
1517      - restore use of make (not gmake)
1518      - add CC=gcc if using g77
1519    o changes per discussion of AM, JMC, & EH3 today:
1520      - move redundant "grid" variables out of "state" -- in preparation of
1521        creating proper CF-style coordinate variables and in recognition
1522        that any/all grid variables can be easily copied (eg. w/NCO) from
1523        the grid files into any of the other NetCDF files
1524      - *always* output grid variables with MDSIO (this will eventually be
1525        changed)
1526      - output MNC grid file if useMNC is true
1527    o every instance of _END_MASTER() has been found and replaced with
1528      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1529      preprocessors
1530    o re-arrange diagnostics pkg initialisation:
1531     - allow each package to extend the available diagnostics list
1532     - add some checking and fix small problems (multi-threaded, ...)
1533     - new S/R diagnostics_fill (replace fill_diagnostics):
1534       look through the short list of active diag. (instead of the long list)
1535       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1536    
1537    checkpoint57a_post
1538    o this set of changes restores TAMC compatibility
1539      tested for global_ocean.90x40x15 adjoint on trough
1540      (what a pain)
1541    
1542    checkpoint57a_pre
1543    o some modifs in tools/build_options for sunos
1544    o call ctrl_pack for ctrl at end for optimcycle=0
1545    
1546    checkpoint57
1547    o add horizontal bi-harmonic viscosity for vertical velocity
1548      - new parameter viscA4W (defaults to viscA4)
1549      - affects only non-hydrostatic code
1550      - to be done: no-slip lateral boundary conditions
1551    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1552    o implement Implicit Vertical advection for pTracers
1553    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1554      (implemented also for implicit vertical diffusion & advection)
1555    o OBCS: extend application of tracer open boundary conditions
1556      to a strip beyond the boundary of width Olx/Oly
1557    o add call monitor to TAF set of required calls (flow directives)
1558      and include in natl_box_adjoint
1559    o untangle a few ifdefs related to cost, ctrl, autodiff
1560      untangel a few ALLOW_ECCO_OPTIMIZATION
1561    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1562      (theta2, salt2 in ecco_cost_weights)
1563    
1564    checkpoint56c_post
1565    o OBCS as control variables
1566      - update ctrl_ad_diff.list, obcs_ad_diff.list
1567      - remove balance of obcs controls from default
1568      - fix index bug nobcs in ctrl_init
1569      - fix dummy fields filen in ctrl_pack
1570      - add dummy weights for obcs
1571    o lsopt: comment out fort.94 output
1572    o optim:
1573      - remove unnecessary header files
1574      - adjusted namelists
1575      - add xerbla.F to Makefile
1576    o exf:
1577      - multiple modifications of exf_check_range
1578      - unit change in exf_init_runoff from [m/year] to [m/s]
1579    o mdsio:
1580      - i/o-vector change debugLevel from debLevA to debLevB
1581    
1582    checkpoint56b_post
1583    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1584      is called from DO_THE_MODEL_IO
1585      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1586      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1587      - clean up PTRACERS_WRITE_TIMEAVE a little
1588    o add another verification experiment that tests both the cfc-pkg and
1589      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1590      reactive tendencies treated inline with regular timestepping
1591    o testreport previously did a lousy job of comparing small numbers, so
1592      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1593      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1594      testreport.
1595    o ptracers_monitor: bug fix for MPI
1596    
1597    checkpoint56a_post
1598    o GCHEM: finish reorganizating the package
1599      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1600        (introduces another 3D-array for each passive tracer, but only if
1601        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1602        gchemTendency is not needed because the timestep is done separately)
1603      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1604      - GCHEM is now---more or less cleanly---separate from PTRACERS
1605      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1606        so clear to me how that should be done in a general way.
1607    o CFC: improve formatting of output in CFC_ATMOS
1608    o PTRACERS:
1609      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1610        that ALL experiments with ptracers enable can be checked. This makes
1611        GCHEM_MONITOR obsolete.
1612      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1613        monitorFreq
1614      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1615    o add PTRACERS (PTR0[1-5]) to testreport output
1616    o exf_check_range:
1617      * default changed to .TRUE.
1618      * will check values for niter0 if debLevA, every timestep if debLevB
1619      * STOP in exf_check_range if 'out of range'
1620      * range chosen generous to allow for potential extema
1621      TBD: a version with stricter range
1622           permitted range would be runtime parameters
1623    o GMredi:
1624      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1625      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1626      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1627    o GCHEM:
1628      - move call to GCHEM_FORCING_SEP, so that it is now called before
1629        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1630      - introduced a useGCHEM runtime flag and applied it everywhere.
1631      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1632        this flag is now only visible within GCHEM-pkg routines.
1633      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1634        be replaced by a 3D array that is computed before thermodynamics; for
1635        this, the tracer ID iTracer had to be included into the parameter list
1636        of ptracers_forcing
1637      - set up forward_step to call gchem_forcing, that will replace
1638        gchem_forcing_int in ptracers_forcing
1639      - cleaning up
1640    o small cleaning of exch2: remove files that are also in eesupp/src
1641    
1642    checkpoint56
1643    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1644    o mnc: cleanup "full" files--fixes out-of-memory problem
1645    o ECCO-GODAE
1646      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1647      * fully merged and updated from SIO code
1648        windstress sign change affects
1649        - exf_inscal_[u/v]stress
1650        - sign of xx_tau[u/v] adjustments
1651        - signs in cost_scat
1652      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1653      * natl_box_adjoint updated and compressed
1654      * 2-level checkpoint switch added
1655        (tested in EXP. 1 of natl_box_adjoint)
1656      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1657    o SVD
1658      * first complete, non-hacked version for SVD calculations
1659      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1660        performed via direct access files admtlm_vector.it????
1661        (via ctrl_[un]pack)
1662      * optimcycle is used for ARPACK iteration counter
1663        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1664      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1665        and add linear transforms where necessary
1666      * controls are initial/final SST, SSS (can be extended; need to check
1667        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1668    o mdsio: filename info to both stderr, stdout
1669    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1670      from sign change
1671    
1672    checkpoint55j_post
1673    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1674      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1675    o add consistent build directories and .cvsignore files to verification
1676    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1677    o make all subroutines 30 or less characters in length for certain older
1678      compilers to work (a thorough search only turns up two routines in
1679      pkg/ptracers)
1680    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1681      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1682    
1683    checkpoint55i_post
1684    o change arrays for total vertical diffusivity (2.D if explicit,
1685      3.D if implicit) ; each ptracer uses its own background value.
1686    o added mnc/NetCDF output capability to ocn_compon_interf
1687      - added bits to verification/cpl_aim+ocn so that it can run on
1688        ITRDA and other clusters without the mpirun "-wd" option
1689    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1690      configuration
1691    o give MNC the ability to create additional files rather than
1692      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1693      - the default is just less than 2GB which is a practical limit
1694        on many systems
1695    o Compute the non-local term using either KPP vertical diffusivity (=default)
1696       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1697    
1698    checkpoint55h_post
1699    o add verification test "vermix"
1700    o remove all the *_ioinc flags and replace with the single global
1701      outputTypesInclusive flag
1702    o allow to set a vertical profile of vertical diffusivity for T & S
1703    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1704    o useMNC moved from data.mnc to data.pkg
1705    
1706    checkpoint55g_post
1707    o Renaming carbon AD experiments to comply with testreport conventions
1708    o Updating adjoint of Held-Suarez hs94.1x64x5
1709    o Fixing directives for non-ECCO forward_step, after ECCO directives
1710      have been fixed to avoid recomp. of do_oceanic_phys
1711      Works well for global_ocean.90x40x15,
1712      but recomp. issue remains for carbon
1713    o Updating adjoint output for natl_box_adjoint after
1714      pkg/ecco has been modified (see taga c55d_post)
1715    
1716    checkpoint55f_post
1717    o rename to timeave_init_fixed
1718    
1719    checkpoint55e_post
1720    o some delicate re-shuffle of store directives to avoid one
1721      extra call of do_oceanic_physics
1722      affects ecco_the_main_loop.F, do_oceanic_physics.F
1723      checkpoint_lev1_directives.h
1724    o NB: this may break global_ocean adjoint temporarily,
1725      but it is clear how to fix it. Will do later, need this now.
1726    
1727    checkpoint55d_post
1728    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1729    o ecco_cost_weights is modified to 1x1 runs
1730    o modifs to allow observations to be read in as
1731      single file or yearly files
1732    o enable to read exf forcing fields as either
1733      single file or yearly files (flag useExfYearlyFields)
1734    checkpoint55d_pre
1735    
1736    o switch between 2-level and 3-level checkpointing
1737    o add ability of MNC to write local and "partial" (eg. 2D slices where
1738      the full 3D field is never actually stored) arrays to NetCDF files
1739      with the correct (that is, the complete multi-dimensional) set of
1740      array indicies
1741      - used in mom_vecinv() to write the diagFreq output
1742      - tested (demonstrated) in verification/aim.5l_cs
1743    o further mnc-ification
1744      - add verification/lab_sea to the list with mnc setups
1745      - fix undefined mnc v-names in cd_code
1746      - add kpp to mnc output (both snapshot and timeave)
1747    o non-hydrostatic code
1748      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1749        in calc_gw.F
1750      - defaults to viscAh
1751      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1752        friction or Leith) in non-hydrostatic mode, as long as there is
1753        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1754    o pkg/cost
1755      extend simple cost functions to treat time mean quantities
1756      (T,U,V) via cost_accumulate_state from cost_tile
1757    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1758        be 2 times larger than the minimum size the advection scheme requires.
1759        now get a perfect conservation of salt in advect_cs test-exp (updated)
1760    o GGL90 (Gaspar's TKE mixed layer)
1761      - add horizontal diffusion of TKE, requires exchanges in
1762        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1763        default. In OPA there is no horizontal diffusion of TKE but the
1764        mixing coefficients are computed from a horizontal average of TKE of
1765        6 points or so. I think that diffusion has a little more physical
1766        justification.
1767      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1768        was in vain)
1769      - mask tke-variable in ggl90_init
1770    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1771    o fix biharmonic diffusion on CS-grid.
1772    o more obcs stuff
1773      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1774        for reading boundary values. This routine is called from
1775        obcs_prescribe_read
1776      - updated obcs_check
1777      - changed sponge layer relaxation parameter units for days to seconds
1778      - turned off sponge layer by default
1779      - changed argument list of OBCS_CALC to myTime+deltaTclock
1780      - fixed about 35 bugs in obcs_external_fields_load
1781    
1782    checkpoint55c_post
1783    o obcs stuff
1784      - new runtime flags useOBCSprescribe, useOBCSbalance
1785      - re-arranged obcs_calc
1786      - moved exf_getobcs to obcs_prescibe_read
1787        obcs_prescibe_read is called after ORLANSKI stuff
1788        and independent of it (executable can contain all).
1789      - updated obcs_check
1790      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1791        These may be necessary only if tangential velocities are
1792        prescribed at OB, not sure, needs testing.
1793    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1794      which simplifies the calls and passes the ifc check-bounds test
1795    
1796    checkpoint55b_post
1797    o add a 2D scalar, Z location, exchange_2 routine.
1798    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1799      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1800      affects advect_cs results (for the wrong reason): update output.txt
1801    o use a more standard discretization for biharmonic viscosity ;
1802     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1803      affects results of dome set-up: update output.txt
1804    o fix gad_advection.F (CubedSphere part), back to version 1.23
1805    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1806    
1807    checkpoint55a_post
1808    o merged code to
1809      * prescribe/read time-dependent open boundaries
1810        (works in conjunction with exf, cal)
1811      * sponge layer code for open boundaries
1812      * each boundary N/S/E/W now has its own CPP option
1813        (healthy for the adjoint)
1814    
1815    checkpoint55
1816    o up-to-date adjoint of previous breaks
1817      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1818      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1819      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1820      - carbon: * remove tr1-related adjoint verification
1821                * add ptracer as control variable
1822    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1823      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1824    
1825    checkpoint54f_post
1826    o in verification/carbin/ remove experiment related to
1827      ALLOW_PASSIVE_TRACER (array tr1 etc)
1828      code_ad/ input_ad/ results_ad
1829    
1830    o add two new packages
1831      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1832        + subject to optimization (memory)
1833      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1834        + subject to reordering (many GOTOs in the original code)
1835        + so far opps is called for every (i,j) point, and then operates in
1836          the vertical; one may want to reorder the scheme in order operate in
1837          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1838          fields)
1839    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1840      - all verification tests compile and run with linux_ia32_g77
1841      - defaults are compatible with current input files--nothing
1842        should change if you were not previously using MNC
1843      - MNC output has been added in numerous places (eg. timeave)
1844        but there are still a few writes not yet do-able with MNC
1845        (this is in progress)
1846      - flags now allow for either/or/both use of MDSIO and MNC and
1847        documentation will soon follow
1848      - numerous small formatting cleanups for ProTeX
1849    o add version info (via BUILD_INFO.h) to MNC and stdout
1850    
1851    checkpoint54e_post
1852    o add two new packages
1853      - pp81 (Packanowski and Philander, 1981), Richardson number and
1854        stratification dependent mixing
1855      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1856      - these scheme operate in a similar manner as KPP (without ghat, of
1857        course), however there is only one diffusivity that is used for both
1858        temperature and salinity (and passive tracers)ç
1859    o add offline package
1860    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1861      provided by Stephanie Dutkiewicz
1862    o genmake2: add ability to search for C compilers and cleanup test output
1863      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1864    
1865    checkpoint54d_post
1866    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1867    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1868      leading to additional shift by 5 days each year of integration
1869       (i.e. leading to considerable offset over the years)
1870    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1871    o start with no AB and no initial filtering (staggerTimeStep):
1872      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1873    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1874      (external loading & cpl import/export stay in forward_step.F)
1875    o update coupling interface to work with new staggerTimeStep
1876    o change MDSIO ptracers_pickup.
1877    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1878    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1879    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1880    
1881    checkpoint54c_post
1882    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1883      this affects (truncation error) output.txt of test-exp:
1884       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1885    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1886    o change Qnet to always be the net heat flux, (+upward).
1887      affects (truncation error) output of natl_box exp.: updated
1888    o define the max number of passive tracers in PTRACERS_SIZE.h
1889    o start to test mnc routinely in exp0
1890    o add sea-ice loading (sIceLoad) as a new forcing field.
1891    
1892    checkpoint54b_post
1893    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1894       impressive on Altix and Opteron systems)
1895    o diagnostics can now write NetCDF files through the mnc package
1896    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1897    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1898    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1899      affects (truncation error) output of lab_sea & natl_box exp.: updated
1900    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1901    
1902    checkpoint54a_post
1903    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1904    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1905    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1906    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1907      + internal_wave (shift in writing cg2d_ini_res)
1908    checkpoint54a_pre
1909    
1910    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1911      - modified verification/lab_sea and natl_box_adjoint accordingly
1912    
1913    checkpoint54
1914    checkpoint53g_post
1915    o prepare splitting of thermodynamics: store convect.counter in common block
1916    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1917      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1918    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1919    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1920    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1921    o restore adjointability
1922    
1923    checkpoint53f_post
1924    o modifications that affect AIM experiment results (update output.txt):
1925      - no advection of S at top interface Nr (pkg/generic_advdiff)
1926      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1927    o AIM pkg:
1928      - include stability function into surf.Flux derivative relative to Tsurf
1929      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1930    
1931    checkpoint53e_post
1932    o merged cylindrical coord configuration
1933    o added rotating_tank experiment
1934    checkpoint53e_pre
1935    
1936    checkpoint53d_post
1937    o faulks upgraded: re-generate output.txt that have changed:
1938       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1939    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1940    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1941    o added Sadourny discretization of Coriolis
1942      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1943      - re-enabled use of omega3 (useAbsVorticity)
1944    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1945      vector-invariant equations
1946      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1947    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1948      hopefully without new bugs
1949      - still to do: biharmonic friction for non-hydrostatic w
1950    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1951    o regenerated output for global_ocean_ebm (using -ieee)
1952    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1953      of mom_common/
1954      - simple re-arrangement of instructions within computing loop
1955    checkpoint53d_pre
1956    
1957    checkpoint53c_post
1958    o new version of coupler for AIM+thSIce and Ocean models
1959     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1960     - land: change Evaporation of snow
1961     - aim with thSIce: fix bug in snow-precip.
1962    o changes to calc_gw.F
1963     - bug fix for w^2 term near the bottom boundary
1964     - (hopefully) improve the lateral slip boundary condtions for use with
1965        partial/looped cells
1966      - because the bug fix changes two verification experiments anyway (exp5
1967        and plume on slope), change the lateral boundary condition from half slip
1968        to the value of no_slip_sides
1969    o ebm package wasnt quite up to the parallel task. Fixed that.
1970    o Adjoint of EBM package + verification
1971      * TLM OK
1972      * ADM not sufficient accuracy yet (needs further testing)
1973    
1974    checkpoint53b_post
1975    o Commiting new energy balance model to repository
1976      * package is pkg/ebm
1977      * verif. is verification/global_ocean_ebm
1978      * references are in ebm_driver.F
1979    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1980    C        Global thermohaline circulation. Part I:
1981    C        Sensitivity to atmospheric moisture transport.
1982    C        J. Climate 12(1), 71-82
1983    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1984    C        Global thermohaline circulation. Part II:
1985    C        Sensitivity with interactive transport.
1986    C        J. Climate 12(1), 83-91
1987    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1988    C        Destabilization of the thermohaline circulation
1989    C        by atmospheric eddy transports.
1990    C        J. Climate 7(12), 1870-1882
1991    o Will need long integration testing.
1992    checkpoint53b_pre
1993    
1994    o created pkg/mom_common in preparation for variable viscosity code
1995    o renamed and split ini_mnc_io
1996    o pkg/land: only liquid water can diffuse or run-off
1997    o AIM using land: soil wetness availability account for snow
1998    o added printMapIncludesZeros to EEPARMS namelist
1999    
2000    checkpoint53a_post
2001    o restore TAMC compatiility for exf_constants.h
2002      (no usage of _d in .h)
2003    o Additional storing in KPP in an attempt to fix
2004      TAMC problem with adjoint of KPP code.
2005      (no success...)
2006      Identical code works fine with TAF.
2007    o Fixed verification/natl_box_adjoint experiments.
2008      Initial conditions for Experiments 4 and 5 are now
2009      set to "SEAICE_initialHEFF=0", which is more reasonable,
2010      and hence gives results closer to that of Experiment 2.
2011      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2012    
2013    checkpoint53
2014    o stable checkpoint with up to date adjoint
2015      TLM tests only run for 1st grdchk at the moment. Its unclear if
2016      this is a code problem or a problem with resetting code for g_
2017      variables that is being autogenerated wrong.
2018      Otherwise:
2019       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2020       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2021         are both still in chaos following their security messes.
2022    
2023    checkpoint52n_post
2024    o various build (mostly genmake2) changes including:
2025      - ability to build/run more easily within Cygwin and MacOS X
2026      - more complicated Makefiles with a stronger dependence on Gnu Make
2027    o pkg/seaice modifications
2028      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2029        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2030        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2031      - changed proxy for geostrophic velocity and updated
2032        verification/lab_sea/results/* accordingly
2033      - removed ADI dynamic solver from pkg/seaice
2034      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2035        they caused a segmentation fault under certain circumstances
2036      - removed unused field WATR
2037    o bug fix in exf-package:
2038      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2039         now reflect that.
2040    o small fixes in the cal-package:
2041      - set reference date to first of January for the 'model'-calendar
2042      - failing of cal_CheckDate in cal_FullDate now actually results in a
2043        warning
2044    o small modifications in exf-package to increase flexibility:
2045      - change climtempfreeze from a constant to a runtime parameter that
2046        is specified in data.exf_clim (default = -1.9)
2047      - introduce runtime parameter windstressmax (default = 2.0) that is
2048        specified in data.exf
2049    o fix in pkg/thsice:
2050      - update Evap (Tsf changes) to be consistent with Latent heat flux
2051      - maintain snow precipitation unchanged (even if Tsf >=0).
2052     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2053    
2054    checkpoint52m_post
2055    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2056      this does not change any of the results, because myIter=0 in swfrac always
2057      lead to jwtype=2 (the default anyway), but the call makes little sense
2058      as a default
2059    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2060    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2061      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2062    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2063    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2064    o extending useSingleCpuIO option to work with new exch2 I/O format
2065      - old-style, missing-tile I/O is still accessible by defining CPP
2066        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2067    o monitor package can write to NetCDF files and/or STDOUT
2068    o fix re-definition bug in MNC_GRID_INIT_ALL()
2069    o doc/api_reference added
2070      - a framework for building an API Reference Manual using all
2071        the "protex" comments embedded in the code
2072      - see pkg/generic_advdiff, pkg/mnc for examples
2073    o MNC:
2074      - make myThid the last argument for all subroutines
2075      - new default for the grid files: NO halos
2076      - add useMNC and other run-time flags
2077      - separate per-file-group handling of the unlimited dimension
2078      - early initialization of MNC w/ flags read at the eeboot stage
2079        and lookup tables set in initialize_fixed
2080      - write all MNC output to a freshly-created directory
2081    o thermodynamics sea-ice (thsice) is now tested with testreport.
2082    o test exp. advect_cs: use the standard cs32 grid ; update output.
2083    o Added functionality to grdchk:
2084      pick global i,j,k position (or nearest wet) where to perform check.
2085    
2086    checkpoint52l_post
2087    o new land formulation:
2088      a) use ground enthalpy as prognostic variable to ensure exact
2089         energy conservation.
2090      b) account for water temperature and for latent heat of freezing
2091         in all processes (rain, run-off, ground storage)
2092      c) compute surface and ground temperature implicitly.
2093    o aim_v23 modification for new land model:
2094      a) Treat separately land / ocean / sea-ice surface fluxes
2095         to allow implicit computation of land & sea-ice surface temp.
2096      b) add snow precipitation.
2097    checkpoint52l_pre
2098    
2099    o fix problem (when 1 tile is empty) in min/max monitor.
2100    o fix bug in timeAve (u,vZetatave in common block)
2101    o no restoring terms under ice for pkg/seaice
2102    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2103    o bug fix for pkg/seaice pickups
2104    o change MNC call locations and add coordinate attributes
2105    o mask vorticity at the corner ; affects global_ocean.cs output
2106    o fix ini_curvilinear_grid ; test CS experiments with mpi
2107    o aim.5l_cs: modify sea-ice fraction input file ; update output
2108    o exf: Adding simple range check routine for exf fields after read
2109    
2110    checkpoint52k_post
2111    o removed top-level directory "diags"
2112      - we migrated these functions to pkg/timeave a long time ago
2113    o fixed bug introduced in pkg/monitor
2114    o accuracy ctrlprec = 32 insuffient for gradient checks using
2115      averaged fields (I/O via cost_averages)
2116      -> use ctrl.h in active_file*.F to control I/O precision.
2117    o paramter list of CALL ADTHE_MAIN_LOOP
2118    o added initial do_the_model_io to ecco
2119    o set all ...Freq to zero after cost_final
2120      taveFreq, dumpFreq, pChkptFreq
2121    o MAIN and ECCO differentiability restored
2122    
2123    checkpoint52j_post
2124    o fix nchklev in tamc.h for global_ocean...
2125    o Bringing flow and store directives up-to-date
2126    o Really weird thing!
2127      call do_the_model_io from the_main_loop with parameters
2128      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2129      TAF places a faulty re-call of initialise_varia
2130      after cost_final call which should not be there!
2131    checkpoint52j_pre
2132    
2133    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2134      error messages
2135    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2136    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2137      debug output
2138    o modfied mdsio_writefield.F to handle non-global files under exch2
2139    o update AIM Cubed-Sphere exp (aim.5l_cs):
2140      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2141    o update AIM Equatorial Channel exp:
2142      use standard aim_v23 pkg and change the SST fields to be more realistic.
2143    o globalFile now works with exch2
2144    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2145      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2146    o limit timeave output for hi-res integrations
2147    
2148    checkpoint52i_post
2149    o removed CPP_EEOPTIONS.h from verification/*/code
2150    o updated the tiling for global_ocean_pressure
2151    checkpoint52i_pre
2152    
2153    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2154      the old pkg/aim).
2155    
2156    checkpoint52h_pre
2157    o shortened offending lines in exch2_send_rx?.template
2158    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2159    o genmake2: add build & execute test for NetCDF code
2160    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2161      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2162    o added useSingleCPUIO flag to monitor.F and mon_out.F
2163    o added temporary hack for sea-ice dynamics on the cube:
2164      metric terms are ignored and it is assumed that
2165      there is no sea-ice on cube faces 1, 2, 4, and 5.
2166    
2167    checkpoint52f_post
2168    o added exch2 cube routines to pkg/exch2
2169    o modified hs94.cs-32x32x5 to use it
2170    o added new grid files to hs94.cs-32x32x5
2171    checkpoint52f_pre
2172    
2173    checkpoint52e_post
2174    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2175      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2176    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2177      to work with implicit vertical advection and AB ;
2178    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2179    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2180     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2181    checkpoint52e_pre
2182    
2183    o fix bug in impldiff when Nr=1 or Nr=2.
2184    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2185    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2186    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2187      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2188    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2189    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2190    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2191    
2192  checkpoint52d_post  checkpoint52d_post
2193    o re-tiled many expts to allow comparison in multi-processor mode
2194      - updated output accordingly
2195      - changed hs94.128x64x5 to use intial T from file rather than use the
2196        random number generator
2197    o add infrastructure in model routines for fizhi and gridalt packages
2198  o change global_ocean.cs32x15 because of Pb with GM on CS-grid.  o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2199  o changes to permit hi-res, cubed-sphere, configuration  o changes to permit hi-res, cubed-sphere, configuration
2200    - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F    - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F

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