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revision 1.232 by jmc, Wed Dec 31 20:29:54 2003 UTC revision 1.887 by mlosch, Wed Oct 3 19:42:16 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 add new diagnostics to seaice: advective, diffusive fluxes (only for
8      multidim-advection, for scheme 2 they are not filled) and transports,
9      thermodynamic growth rates
10    o change units of EmPmR (inside the code) from m/s to kg/m2/s (mass flux) but
11      leave input file unchanged. Affects results @ truncation level (cg2d match)
12      and update output of experiments: lab_sea(6), global_ocean.90x40x15(10),
13      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
14      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
15      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
16    
17    checkpoint59h
18    o pkg/exf:
19      - improve vectorization by moving if-statement out of loops in
20        exf_mapfields, exf_radiation
21      - exf_bulkformulae.F: introduce 2D fields and vectorize code
22    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
23    o testreport:
24      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
25        monitor & update offline_exf_seaice exp. output.
26      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
27    o pkg/seaice:
28      - bug fix in the evp solver: boundary conditions were affected be
29        masking of zMax/zMin (changes results)
30      - minor bug fix in boundary conditions in seaice_calc_strainrates
31        (changes results for no_slip)
32      - seaice_lsr.F: make interpolation of eta dependent on boundaries
33      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
34      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
35        stress formulation and no-slip boundary conditions
36    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
37      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
38    o pkg/seaice: a first HSALT time stepping equation has been checked in
39    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
40      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
41      without requiring DO-IF statements
42    o pkg/thsice:
43      use continuous power-law function for partition of energy between lateral
44      melting/freezing and thinning/thickening ; old code using step function
45      still available with #undef THSICE_FRACEN_POWERLAW
46      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
47    o testreport: change AD testing : check against results/output_adm.txt
48      using same scripts as for forward test.
49    
50    checkpoint59g
51    o adjoint testing: in preparation for changing testreport:
52      - output format: cost and grad written on separated lines
53      - ad output results in directory "results" (instead of "results_ad")
54    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
55    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
56    o pkg/ecco: allow user defined cost function contributions
57    o testreport:
58      Allow to choose (per experiment) the list of tested output variables
59       and the main variable (used to issue a pass/FAIL ) ;
60      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
61      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
62      Also modify printing of summary:
63       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
64       b) echo the list of tested variables in the individual summary.txt of
65          each experiment.
66    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
67      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
68      (but still depend on the tile decompostion of the domain).
69    o pkg/seaice: change a discretization detail to make the B-grid code
70      "more symmetric". This change is likely to remove all "ridges/leads" that
71      where quasi-aligned with the grid in B-grid solutions. It may also be
72      the solution to the stress coupling issues with the B-grid.
73    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
74      remove .cvsignore from input dir. (since testreport no longer run here).
75    o pkg/thsice:
76     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
77     - fix reshaping of sea-ice just after advection:
78       melt all the ice only if ice-volume is too small.
79     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
80       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
81     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
82    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
83      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
84    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
85      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
86      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
87      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
88      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
89      -> update output.txt
90    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
91     this affects truncation error: -> update output.txt of exp:
92      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
93      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
94    
95    checkpoint59f
96    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
97    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
98      a bounded range (in forward mode)
99    o pkg/ecco, ctrl, autodiff and mom_common:
100     internal parameter controls, completements of implementations
101    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
102    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
103      (not seem any difference in testing results).
104    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
105       at face corners.
106    o pkg/generic_advdiff:
107     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
108      loop range indices for computing vertical advection tendency
109      and do the calculation in the interior only (no overlap) ;
110      for now, only implemented for SOM advection (to save CPU time).
111     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
112    o exch2 adjoint
113      First set of changes:
114      - add exch2 hand-written adjoint templates
115      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
116        This will require cleanup in pkg/autodiff/*.F
117        (changed routines currently kept separate in verif. code/)
118      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
119        that used to hide exch2 or cubed-sphere specific code
120        (commented via 'cph-exch2')
121    o pkg/seaice
122      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
123    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
124       output of global_ocean.cs32x15.thsice .
125    
126    checkpoint59e
127    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
128      for B-grid vector (not yet tested) and C-grid vector (<- only used
129      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
130    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
131      (#ifdef ALLOW_SALT_PLUME)
132    o gather_2d/scatter_2d: removed halo regions
133    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
134      scheme and the corresponding test case (under front_relax dir). For now,
135      only available with Skew-flux form and not yet tested in realistic set-up.
136      adjoint: store directives updated, but gradient checks deteriorated,
137      so maybe GM/Redi adjoint is now broken.
138    o seaice adjoint
139      * add AREA, HEFF, HSNOW as control variable
140        (should not change lab_sea results)
141      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
142    o pkg/seaice:
143      * added computation of saltFlux in seaice_growth;
144        For time being, sea ice salinity is assumed constant
145        contribution of snow flooding to freshening of sea ice is neglected.
146        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
147        defaults to 0.0 in order to maintain backward compatibility.
148        Typical values for SEAICE_salinity are 4 to 10 g/kg.
149      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
150      * added SEAICE_availHeatFrac, which specifies fraction of surface level
151        heat content used to melt or grow ice
152      * commented out cap of HICE: it helps keep ice thinner
153      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
154      * applied OBCS T/S mask to HEFFM sea ice mask
155    
156    checkpoint59d
157    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
158     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
159     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
160    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
161     and change default value of parameter "GM_Small_Number";
162     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
163       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
164       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
165    o pkg/ecco: cost function when applying pkg/smooth to controls
166    o pkg/ctrl: add forcingPrecond run time parameter
167    o pkg/seaice:
168     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
169     - fix bug in metric terms of u-equation in LSR solver (implicit part),
170       changes verification/lab_sea
171     - rearrange implicit part of u-equation in LSR solver to make it easier to
172       read, understand, and debug. This causes changes at the truncation level.
173     - fix (serious) bug in the boundary conditions (sign error in the implicit
174       part) of the LSR solver. Changes all LSR results.
175     - fixed problem with HSNOW initialization to avoid thick snow when AREA
176       is initilized with small values - does not change lab_sea results.
177     - added HsnowFile initialization capability
178    o pkg/smooth: addition to model/src and pkg/ctrl so allow
179     initialization of pkg/smooth and application to control vector
180    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
181    o dependencies: pkg/profiles requires pkg/cal
182    o pkg/profiles:
183     - added option ALLOW_PROFILES_GENERICGRID
184         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
185         that interpolation information (grid points and coefficients) is provided
186         within the netcdf input files.
187         -> sample matlab scripts can be found in MITgcm_contrib/gael
188         that allow you to prepare netcdf input files.
189     - also modified: cleaner include statements, cleaner error print statements,
190       cleaner stops when error, and more tests of the netcdf input files consistency.
191    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
192    o pkg/seaice:
193     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
194       requires a new routine: seaice_diagnostics_fill.F
195     - make sure that seaice does not move if not forced (pressure replacement
196       method, Hibler and Ip, 1995), changes results
197     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
198     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
199       It is turned off by default (=-1.), because it changes the results.
200     - make it possible to read AREA from a file, too.
201    
202    checkpoint59c
203    o add S/R and diagnostics for oceanic mixed-layer depth
204    o move GMRedi call after all vertical mixing schemes (including KPP)
205    o pkg/thsice:
206     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
207      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
208    o pkg/obcs:
209     - bug fix for balance code
210    o pkg/seaice:
211      - allow values of SEAICE_elasticParm > 1
212      - add new parameter SEAICE_evpTauRelax as an alternative
213        to SEAICE_elasticParm
214      - make lsr boundary conditions free slip (by default), changes result
215      - add code for no slip boundary conditions for lsr
216      - set minimum of zeta to zero (and not 4e8) (changes results)
217      - add a cap on AREA after advecting AREA if seaice_growth is not called
218    o change calculation of Visbeck K:
219      - no longer depend on tapering scheme; instead, compute slope (limited
220        by GM_maxSlope). this is equivalent to what was comuted before with
221        clipping or linear tappering.
222      - fix vertical averaging (wrong by 1/2 level)
223      - leave the old version (but will not be maintained) within
224        #ifdef OLD_VISBECK_CALC / #endif
225      - update output of exp. ideal_2D_oce
226    o change error catch in calc_r_star to improve vectorization
227    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
228      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
229    o adjoint:
230      Re-organized adjoint checkpointing according to Matt Mazloff
231      (but with modifs/completions/cleanups)
232      Storing is now bundled into large arrays to optimized I/O
233      (and second step in cleanup of the_main_loop)
234    
235    checkpoint59b
236    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
237      - export/import (between ocean & coupler) fields needed for ocean DIC.
238    o pkg/seaice:
239      - get rid of three more exchanges seaice_calc_viscosities (required
240        different loop boundaries in seaice_lsr and seaice_ocean_stress)
241      - bug fix in seaice_ocean_stress (update of lab_sea required)
242      - reduce loop boundaries to necessary minimum also in seaice_evp
243      - go back to the old way of computing deltaC/Z as the adjoint likes that
244        better
245    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
246      passive tracer to an Age Tracer) + update output.txt
247    o pkg/exf:
248      - implement A-grid / C-grid selection for wind-stress input files.
249      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
250      for now, in exf_bulk_largeyeager04.F only :
251      - change implementation for case where windspeed + 2. components wind-stress
252        are read-in. AND use rhoConstFresh to convert evap.
253    o pkg/seaice:
254      - use correct EXCH_UV for wind-forcing (on A-grid).
255      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
256        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
257    o pkg/exf:
258      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
259      EXF_INTERPOLATION:
260      - merge global_with_exf/code version of exf_interp_read.F
261        to the main code ;
262      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
263        reading the file ; Important: This options needs to be defined to recover
264        previous code.
265        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
266      - no longer loose real*8 precision along the way when using exf_iprec=64.
267    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
268      - change discretisation of evp-solver in order to avoid another exchange
269        (changes lab_sea) and clean up a little
270      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
271        help the adjoint (this also changes the results slightly)
272      - add a few "_d 0" where they had been missing in seaice_evp.F
273      - cleaning up: remove unused seaice_calc_rhs.F
274    o pkg/exf: some cleaning-up:
275      - change various "constants" into runtime parameters
276      - cleaned-up Large&Yeager04 routine which should eventually
277        replace exf_bulkformulae.F (changed names of S/R and CPP)
278        and merged various ALLOW_ATM_WIND options
279     only used with thsice pkg (in thsice_get_exf.F):
280      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
281        which are used when useStabilityFct_overIce=TRUE (= the default)
282      - change default values of ice & snow emissivity and scale downward LW
283        by ice & snow emissivity.
284    o pkg/thsice:
285     fix few little problems, in thsice_calc_thickn.F:
286      - growth vertically (and not laterally) if iceFrac == iceMaskMax
287      - melt only laterally if hIce < hThinIce (as the comments say)
288      and in thsice_extend.F:
289      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
290      - start to form ice as soon as the minimum ice-volume is reachable.
291     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
292      and cpl_aim+ocn
293    o pkg/kpp
294     - move computation of surface related input fields to KPP into a new
295       subroutine kpp_forcing_surf.F
296     - remove wrong (within bi,bj loops) EXCH calls.
297     - little cleaning (add argument myThid in last position, cvs header ...)
298     - for now, fix conservation problem by exchanging KPPviscAz (may not
299       be the best fix)
300    o pkg/seaice
301     - check for inconsistent evp parameter/cpp-flag combination
302     - remove leftover errIO flat for obsolete name list error handling
303    o OpenAD
304     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
305    
306    checkpoint59a
307    o pkg/seaice: some parameter clarifications and a little bit of clean up
308    o pkg/thsice: rename run-time parameters:
309       himin       -> hIceMin
310       himin0      -> hThinIce
311       hihig       -> hThickIce
312       i0          -> i0swFrac
313       transCoef   -> bMeltCoef
314       frac_energy -> fracMelting
315      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
316       with default values (for now) that do not change the results.
317      remove old version of thsice vars advection in pkg/seaice.
318    o in FFIELDS.h:
319      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
320      - make pLoad & sIceLoad always available (but still only used if
321         ATMOSPHERIC_LOADING is #define).
322    o pkg/kpp: replaced _KPP_RL with _RL
323    o bug fixes for vertical diffusivity computations when both KPP and
324        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
325        are no longer updating the vertical diffusivity array
326        (passed as argument) but are (re-) setting those arrays.
327    o pkg/seaice: fix bug in evp solver, while doing that
328      - change (improve?) discretization of stress computations for both
329        cgrid-lsr and evp solver
330      - add a new routine to compute strain rates
331      - the above changes lab_sea results
332      - add no slip conditions for evp solver (off by default), lsr-version
333        may follow
334      - fix exchange for shear at Z-points (does not change lab_sea)
335      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
336        (to force the user to pick a time step since there is not "safe" way
337        of choosing it)
338      - add principal stress diagnostics
339      - rearrange fields for evp a little to avoid having to call a: too many
340        exchanges and b: exchanges for stress trensor components which we do
341        not have.
342      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
343        of evp, complete rewrite for lsr case (latter is does not yet work
344        in all cases)
345    o pkg/kpp: add code to have mixing in shelf ice caverns
346      - add myThid to all kpp routines (long overdue)
347    
348    checkpoint59
349    o pkg/exf:
350      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
351        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
352      - move exf header files from lower_case.h to UPPER_CASE.h ;
353        add missing cvs Header & Name
354      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
355      - add namelist param. selectStressGridPosition, exf_monFreq
356      - retire many _CLIM routines, and remove data.exf_clim
357        + params moved to data.exf
358        + climsst, climsss now handled by exf_set_gen, i.e.
359          climss?period=0 refers to constant field,
360          climss?period=-12 to monthly forcing
361      - split up namelists in data.exf
362    o pkg/seaice:
363      - remove seaice_exch and seaice_exch_uv
364      - remove superfluous exchange of theta
365      - add myThid to seaice_budget_ocean/ice
366      - add new interface for atmospheric wind forcing (C-grid only)
367        + new routine
368        + two new field (taux, tauy for stress over ice)
369        + removed one global field (DAIRN) for C-grid case only
370    o pkg/thsise
371      - 2nd set of modifs for thsice adjoint in conjunction with exf
372    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
373    
374    checkpoint58y_post
375    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
376      vertical diffusivity, similar to that in MOM4; turned on using
377      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
378      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
379    o Added capability for 3D specification of background vertical diffusion
380      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
381      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
382      "data" file that contains the 3D vertical diffusivity coefficients.
383    o ice dynamics (pkg/seaice) with thsice thermodynamics:
384      - add code within pkg thsice to advect & diffuse sea-ice fields
385      similar to (and will replace) what has been added in  seaice_advdiff.F,
386      but: - conserving Mass, Heat & Salt.
387           - better when using non-linear advection scheme (not yet fully tested)
388           - can also be used in atmospheric set-up (for now, only the diffusion).
389    
390    checkpoint58x_post
391    o IO option for global-file compact format:
392      - add options when generating topology (utils/exch2/matlab-topology-generator)
393      - add I/O capability (pkg/mdsio).
394      - adapt utils/matlab/rdmds.m to read this format.
395      for now long-line format not yet supported by pkg/mdsio (& exch2).
396    o shelfice: add a few diagnostics
397    
398    checkpoint58w_post
399    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
400      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
401      (and replace horiVertRatio in NH code).
402      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
403                         and tutorial_plume_on_slope (sensitive to truncation)
404    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
405      directly to drive seaice model (C-grid only)
406    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
407     - reintroduce computation of wind from stress,
408     - compute tau (in exf_bulkformulae.F) from windstress averaged to
409       mass points to avoid tau = 0
410     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
411    o rdmnc.m: make it work with "global" files created with gluemnc
412    o rdmnc.m : some improvements in dealing with singleton dimension
413      (tested on all testreport mnc output files).
414    o genmake2: disable pkg/profiles if netcdf test fails.
415    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
416    o move call to cal_readparms up to make calendar parameters/variable available
417      to all packages
418    
419    checkpoint58v_post
420    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
421      useDynP_inEos_Zc tested.
422    o pkg/exf: changes to properly interpolate/mask/scale initial fields
423    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
424      and portions thereof.  See read_cs.txt for description and examples.
425    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
426      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
427      following the great-circle arc between those 2 points.
428    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
429      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
430    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
431     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
432     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
433     - still needs work (not working with some options ; efficiency to improve)
434       and serious testing.
435     - use this scheme for temperature & salinity in 2 advection test exp.:
436       advect_xy & advect_xz, respectively.
437    
438    checkpoint58u_post
439    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
440    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
441    o testreport: add option "-skipdir" to skip some test.
442    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
443      momentum calculation.
444    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
445    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
446      remove checkpoint.F and the_correction_step.F (no longer used);
447      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
448    o add option (linFSConserveTr) to correct for tracer source/sink due to
449      Linear Free surface
450    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
451    o pkg/thsice: fix reading mnc-pickups
452    
453    checkpoint58t_post
454    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
455    o pkg/mdsio:
456     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
457       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
458       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
459     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
460     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
461       either MDS_READ_FIELD or MDS_WRITE_FIELD )
462     - new S/R (to replace MDSWRITEMETA), which allows to write more
463       informations (variable names, time ...) to meta files.
464     - modify rdmds.m to give back the meta file content.
465    o pkg/diagnostics: change vertical interpolation to be safer, and more
466       flexible (define p-levels to interpolate to in data.diagnostics);
467      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
468       diagnostic pointer.
469    o pkg/seaice: more cleaning up of seaice_growth, added many comments
470    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
471    o fix multi-category seaice:
472     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
473       SEAICE_MULTICATEGORY
474     - fix short wave heat flux
475    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
476       and allow to use EVP solver. Change forward lab_sea: test both EVP
477       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
478    o Initial check-in of lab_sea adjoint
479      (very similar to natl_box_adjoint/code_seaice)
480      * used C-grid and EVP solver
481      * used KPP, GM/Redi
482      * uses inAdExact=.TRUE.
483      * gradient checks fail for both ADM and TLM
484        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
485        f.d. gradients actually seem more problematic than ADM, TLM gradients;
486        issue is related to forward mismatch between g77 an ifort
487    o pkg/seaice: overhaul of thermodynamics
488     - growth.F and groatb.F are replaced by new routine seaice_growth.F
489     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
490     - move a few global fields out of SEAICE.h into seaice_growth.F and
491       make them 2D (FICE/QNETO/ ...)
492     - remove FO (it is the same as QNETO)
493     - introduce a few local fields to avoid modifying external fields such
494       as atemp, etc.
495    
496    checkpoint58s_post
497    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
498      changed exf_set_gen.F so that
499        genperiod=0 means input file is one time-constant field and
500        genperiod=-12 means input file contains 12 monthly means
501    o CG2D: use pre-computed solver main-diagonal (stored in common block);
502      this affects truncation error ; generate new output file for exp. which
503      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
504        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
505        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
506        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
507        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
508        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
509    o start implementation of deep-atmosphere and anelastic formulation
510    o verification: remove 2nd copy of input files and use script "prepare_run"
511      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
512    o mom_common/vecinv/fluxform: fix a few initialisation isssues
513    o profiles: fix for multithreaded case
514    
515    o diagnostics: rename few diags:
516      s/'PRESSURE'/'RCENTER '/g
517      s/'TICE    '/'oceFreez'/g
518      s/'TAUX    '/'oceTAUX '/g
519      s/'TAUY    '/'oceTAUY '/g
520      s/'SWFLUX  '/'oceQsw  '/g
521      s/DIFx/DFxE/g
522      s/DIFy/DFyE/g
523      and add few ocean-forcing diagnostics:
524      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
525    o modifications to pkg/seaice/growth.F and budget.F, which change results of
526      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
527      as actual snow thickness.  It now refers everywhere to effective snow
528      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
529    
530    checkpoint58r_post
531    o modifications to pkg/seaice/growth.F, which change results of
532      lab_sea experiment: fixes pertain to melting snow over open water, to
533      masking EVAP under sea ice, and to using the correct AREA variable for
534      computations of EVAP, PRECIP, HSNOW, and GHEFF
535    o add ability to read bathy, salt, and theta using MNC (off by def)
536    o add flooding algorithm and advection of HSNOW for pkg/seaice;
537      both are turned off by default and do no change any results
538    o seaice advection with pkg/thsice: a step toward the use of non-linear
539      advection scheme, but #ifdef or commented out for now (requires more EXCH).
540    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
541      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
542      in natl_box (affects results @ truncation level: update output.txt)
543    o multi-threading and IO:
544      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
545      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
546        (needed to work with SingleCpuIO): tested in all verif. exp.
547    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
548      affects the results (but none of the verification test uses this scheme).
549    o Adding some pkg/diagnostics capability to pkg/seaice
550      (will certainly be subject to changes)
551    o ctrl: adding new control variables:
552      lwflux, lwdown, evap, snowprecip, apressure, runoff
553    
554    checkpoint58q_post
555    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
556      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
557      high_res_cube configuration by 4% on Columbia.
558    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
559      add (in global_with_exf/code) a version of EXF_INTERP_READ without
560      dynamical allocation (seems to work in multi-threaded).
561    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
562      single CPU io) so that TAF does not have to see EESUPPORT.h
563    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
564    
565    checkpoint58p_post
566    o obcs: stop if obcs is used with useCDscheme = .true.
567    o shelfice:
568     - fix a sign error so that no slip at shelfice interface works
569     - remove stop for combination non-hydrostatic code and shelfice. That does
570       not mean, that the results are correct, but at least they are numerically
571       stable
572    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
573    o added adjoint exch routined for all exch*3d* routines
574      and updated flow directives
575    
576    checkpoint58o_post
577    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
578      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
579    o change controling S/R for writing pickup file (new S/R do_write_pickup)
580      and clean-up reading/writing of pickup files.
581    o fix local version of read/write pickup (NH part) in rotating_tank/code
582    o simplify EXCH interface:
583     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
584     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
585    o added the regrid package
586    o shelfice:
587     - add a simple boundary layer scheme to reduce noise
588     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
589    
590    checkpoint58n_post
591    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
592       local variable (not in common block).
593    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
594      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
595      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
596        to work with SingleCpuIO.
597    o add "_d 0" to real constant of pkg/cfc subroutines ;
598       update exp. cfc_exemple & tutorial_cfc_offline output files.
599    o multi-threading and IO:
600      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
601        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
602      - barrier before and after reading.
603      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
604      - avoid using MDS_WRITELOCAL for LAND pkg output.
605      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
606        common-block variables ; Allows multi-threading with master-thread IO.
607    o change default MAX_NO_THREADS from 32 to 4 ;
608      and stop cleanly when MAX_NO_THREADS is too small.
609    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
610    
611    checkpoint58m_post
612    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
613       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
614    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
615       keep global_ocean.90x40x15 (for AD testing) with former secondary test
616       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
617    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
618        add MITgcm_tutorials (= code + all the tutorials)
619    o ecco, option to compute cost for total ssh (mean+anom)
620    o consistent with addition of ptracer and ssh in pkg/profiles
621    o profiles: adding ptracer and ssh
622    o testreport: change multi-test output-file name
623      (from output.txt.{name} to output.{name}.txt)
624    o profiles: now ok for mutli-tiles case
625    o seaice: add 4 parameters for different advection schemes for area,
626      (effective) seaice thickness, enthalphy, and snow height. Their default
627      is the standard parameter SEAICEadvScheme
628    o calc_gw:
629     - add cosFacU in zonal viscous flux (harmonic.visc.).
630     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
631       of tutorial_plume_on_slope.
632    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
633    o calc_gw: true flux-form, account for horizontal grid spacing.
634      update rotating_tank results, but not plume_on_slope (affected at
635      truncation level, 11 digits).
636    
637    checkpoint58l_post
638    o calc_gw:
639     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
640     - remove side-drag for now (need to fix it); update plume_on_slope results.
641     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
642    o commit code to make SST/SSS weights spatially variable
643      (based on either variable in-situ or variable initial T/S weights)
644    o pkg/ecco:
645      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
646        now based on horizontally varying weights wthetaLev, wsaltLev
647      * cost_averagesflags now returns year indices in addition to day, month
648      * sflux balance is performed on annual basis
649        (sflxumm, sfluxmm2, bal_sfluxmm)
650      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
651        including separate counting and multipliers
652    o pkg/rbcs
653      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
654    
655    checkpoint58k_post
656    o testreport:
657     - always build in dir. "build" (if not there, mkdir build instead of building
658       & running in input)
659     - run in dir run (if it exists), in build otherwise.
660     - call prepare_run (if input/prepare_run exists)
661     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
662    o pkg/exf modifications to interpolation and rotation routines for more
663       reasonable treatment of North Pole singularity: for tracers North Pole
664       value is set to northernmost zonal-mean value, for zonal velocity it is
665       set to zero, and for meridional velocity it is set to northernmost value.
666    o pkg/exf/exf_check_range.F
667     - add tile index to diagnostics and move stop statement to the very
668       end of the routine.
669    o pkg/diagnostics: (diagnostics_main_init.F)
670      define title of isomorphic variables according to the current config.
671    o pkg/thsice with pkg/seaice dynamics:
672    - fix domain of computation (interior only, required for exf) and do exchanges
673    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
674    o towards a standard way of dealing with multi-threading in MONITOR
675      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
676    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
677       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
678    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
679    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
680    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
681       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
682    o tracer advection:
683     - clean-up and simplify calc_common_factors.F
684     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
685       advection subroutine (but still not used within DST advection S/R)
686    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
687    
688    checkpoint58j_post
689    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
690      from file (collects calls previously in FORWARD_STEP)
691    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
692    o adjoint store dir. adjusted accordingly
693    o genmake2
694      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
695    
696    checkpoint58i_post
697    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
698      on wind stress (SEAICEstressFactor defaults to 1.)
699    o Total number of Timers is finite (<=40): comment out 2 non-essential one
700      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
701    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
702      on CS-grid: no longer loosing mass.
703    o exf & curvilinear-grid: no longer modify longitude xC & xG.
704    o pkg/ggl90: fix sloppy output and fix a bug
705    o pkg/seaice: added SEAICEuseEVPpickup parameter
706      - Set to false in order to start EVP solver with
707        non-EVP pickup files when using SEAICEuseEVP
708      - fix sign error in diffusion in seaice_calc_rhs
709    
710    checkpoint58h_post
711    * Modifications for bottom topography control
712      o replace hFacC by _hFacC at various places
713      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
714      o add non-self-adjoint cg2d_nsa
715      o update autodiff support routines
716      o re-initialise hfac after ctrl_depth_ini
717      o works for 5x5 box, doesnt work for global_ocean.90x40x15
718    * Adding verification for 5x5 box (4-layer) bottom topography control
719    
720    checkpoint58g_post
721    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
722       used for mean seasonal cycle, mean diurnal cycle); add an example
723       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
724    o pkg/ggl90:
725      - add parameter (minimum surface kinetic energy)
726      - fix bug (avoiding division by zero)
727    o couple pkg/thsice to pkg/seaice:
728      - modify advection in seaice to accomodate new scalar fields to be advected
729      - only muliDimAdection scheme work with seaice/thsice
730      - mapping of thsice-variables to seaice-variables, back and forth
731      - does not break the verification experiments, but does not give the
732        desired results either
733    o pkg/seaice
734      - make (default) second order advection a bit less confusing?
735    
736    checkpoint58f_post
737    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
738      to pkg/seaice):
739      - new routines thsice_map_exf and thsice_get_exf provide the interface
740      - add an additional formal parameter to thsice_solve4temp
741    o pkg/exf:
742      - add new fields wspeed, snowprecip (to be able to couple to thsice)
743      - correct Stefan-Boltzmann constant
744      - new parameter for longwave surface emittance
745      - separate some stuff from exf_bulkformulae into new routines  
746        exf_radiation, exf_wind
747      - add new parameters and constants: longwave emissivity for ocean, ice
748        and snow, evaporation parameters over ice
749      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
750        either wind from stress or stress from wind
751    o pkg/thSIce:
752    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
753    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
754       and THSICE_CALC_THICKN
755    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
756    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
757      to make debugging easier.
758    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
759    o pkg/bulk_force:
760      - clean-up comments and parameters ;
761      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
762    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
763      generate new output for test-experiment: aim.5l_cs.thSI
764    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
765      testreport accordingly
766    
767    checkpoint58e_post
768    o SEAICE_CGRID adjoint done
769    o R_STAR adjoint implemented.
770      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
771      * need to sort out init. of h0facc, etc.
772    o Make pkg/profile fully independent of ecco,cost, etc. stuff
773      to be able to use it in pure forward.
774    
775    checkpoint58d_post
776    o upgrade simple test-experiment to tutorial example:
777     step.1: duplicate the experiment and (step.2) will remove the old copy.
778      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
779      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
780      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
781      tutorial_global_oce_biogeo    <- copy of dic_example
782      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
783      tutorial_plume_on_slope       <- copy of plume_on_slope
784      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
785      tutorial_global_oce_optim     <- empty for now (David ?)
786      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
787     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
788    o correct a sign problem in cost_scat.F
789    o obcs and ptracers: fix boundary conditions for advections schemes
790      with larger stencil
791    o thsice adjoint: start
792    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
793      completeness
794    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
795      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
796    o ptracers adjoint:
797      * avoid extensive recomputatations
798      * fix missing re-init. of gptr (missed by TAF)
799    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
800      me to turn off the excessive output to STDOUT that this package produces
801    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
802      and add those terms in Vector-Invariant formulation.
803    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
804      if the control period (xx_hfluxperiod etc) is 0
805    o in profiles pkg, clean routines and fix details
806    o in ecco pkg, reading ssh data:
807      fix problem in case the model does not start at iter0=0
808    o fix mnc-pickup/restart for ptracers
809    o new package prifiles:
810      code to compute profile-based cost by Gael Forget
811      (modifs in ecco, ctrl, autodiff)
812    o Benign bug fix in initialization (spotted by M. Mazloff) of
813      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
814    
815    checkpoint58c_post
816    o adjoint: finish NLFS adjoint and provide reference output in
817      verification/global_ocean.90x40x15/results_ad_nlfs
818    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
819      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
820      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
821      with SEAICE_CGRID defined.
822    o move calendarDumps from "data" to "data.cal" and clean-up the code
823      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
824    o add useEXF & useCAL flags (for now, set in hard-coded way)
825    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
826      (were missing in NH mode, and wrong in quasihydrostatic mode).
827      waiting for Chris updated version of calc_gw to add those CALLs.
828    o fix bug in quasihydrostatic S/R ;
829      add a test for this option: global_ocean.90x40x15.qshyd
830    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
831      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
832    o add on/off flag useOffLine for package OFFLINE
833    o seaice:
834      - modify advection so that it works also on the C-grid
835      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
836        problem in multi-tile runs with C-grid
837      - add flags for clipping ice velocities and/or masking solver forcing
838      - fix drag (ocean on ice) formulation and a bug that caused noise in the
839        C-grid solver
840      - added a few comments to seaice_diffusion.F
841      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
842        are now exclusive)
843      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
844        required re-ordering the code a little:
845       + make DAIRN global variable (defined in SEAICE)
846       + move computation of the viscosities eta and zeta into a new separate
847         routine (because I need to recompute them in seaice_ocean_stress.F)
848    
849    checkpoint58b_post
850    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
851      update output.txt of exp. aim.5l_cs.thSI
852    o various mnc cleanups and improvements:
853      + shrink lookup tables by factor of ~4
854      + better error reporting when running out of lookup space
855      + able to handle longer path/file names (up to 500 chars)
856    o adjoint:
857      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
858      - TBD: "hidden" mom_vecinv recomp. in dynamics
859    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
860     (allow to differentiate between forcing components using new integer flags:
861      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
862     and add new flag to put Dissipation tendency out of Adams-Bashforth.
863    o ecco
864      - enable trend removal from SSH anomaly obs.
865    o adjoint
866      - a fix for PmEpR when #undef EXACT_CONSERV
867      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
868      - try to fix "hidden" recomp. in forward_step for NLFS
869        (NLFS seems broken sometimes after I checked it in)
870    o seaice:
871     - add c-grid version of the dynamic solver:
872       + three new routines that are the c-grid substitute lsr, dynsolver
873         and ostres
874       + put a few fields that were local to dynsolver into global common
875         blocks, so that I can move the computation of stresses etc into
876         seaice_lsr (saves coding but may break the adjoint).
877     - replace more hardwired parameters by runtime parameters
878     - add ice masks that mask the rhs of the implicit solvers where there
879       is no ice (commented out in seaice_dynsolver, because i am not sure
880       if this works properly), eventually this should replace the clipping
881       of ice velocities in seaice_dynsolver to +/-40cm/s.
882    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
883      include it only where its needed
884    o move balancing of fluxes before the call of external_forcing_surf
885    o seaice:
886      - correct units of turning angles (now they are really in degrees)
887      - move computation of GWATX/Y out of main routine into dynsolver
888      - initialize GWATX/Y in seaice_init
889    o Apply mask on Fresh-Water flux (needed for SSH forcing).
890      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
891    o seaice: add runtime flags for turning angles (default to zero)
892    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
893      and trend from exf forcing and ctrl control adjustments
894    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
895      (since checkpoint57x_post)
896    o change the default rotation period to 86164.s = the Earth rotation
897    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
898      and based on a reference stratification. Tested within hs94.cs-32x32x5.
899    o seaice advection: add code for choosing between the default (2nd order
900      central differences) and multiDim advection schemes provided by
901      pkg/generic_advdiff
902    o seaice:
903      - removed all references to SEAICE_GRID.h fields from
904        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
905        (cubed-sphere configuration will change a little)
906      - grid computations in seaice_init are obsolete now.
907      - cleaned up code a little so that is easier to read (hopefully).
908      - added new (better?) discretizations of default advection and diffusion
909        (turn on with SEAICEuseFluxForm)
910      - replace 1 in 3d global fields by kSurface in growth.F
911      
912    checkpoint58a_post
913    o seaice:
914      - bug fix in advect.F
915    o shelfice:
916      - separate shelfice load anomaly from pload (breaks with time
917        dependent forcing), => introduce constant field shelficeLoadAnomaly.
918        Its default is 0., but it may be computed more cleverly from (unknown)
919        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
920        done offline. A good approximation of the pressure load anomaly is
921        necessary to avoid large initial adjustment processes underneath
922        deep-reaching shelfice.
923      - small fix in ISOMIP shelfice_thermodynamics
924      - add more sophisticated thermodynamics of Hellmer (1989), this is
925        now the default
926      - give a few constants more intuitive names
927    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
928      if bulk formulae are used in long integration (especially EmPmR). Turn
929      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
930      if balancePrintMean, the imbalance that is substracted is printed to
931      STDOUT.
932    o fix bug (typo) in obcs_apply_eta.F
933    o add a new package shelfice which enables us to model the circulation
934      underneath shelf-ice with draughts of hundreds of meters.
935     - works
936     - to do: + include improved thermodynamics
937              + check whether kSurfC (from model/inc/SURFACE.h) can be used
938                instead of new field kTopC
939              + can we use topoFile, Ro_surf and existing code in ini_depth.F
940                instead of new field R_shelfIce and new code in ini_depth.F
941                and ini_mask_etc.F?
942              + adjust vertical mixing schemes?
943    o seaice pkg:
944     - add a cpp-flag to include a simple formula for a salinity dependent
945       freezing point of sea water at the surface
946     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
947       meridional stresses are now different (and hopefully correct)
948    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
949       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
950       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
951    o pkg/diagnostics: add options and parameters for regional-statistics
952       diagnostics ; define regions by reading a region-mask from a file
953       (might add other options later)
954    o pkg/bulk_force:
955     - add option and parameters to use AIM surface-flux formulae.
956     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
957       others forcing fields (defined in PARM05, parameter file "data") are loaded
958       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
959     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
960     - use the right EXCH call for uwind,vwind (to work on CS-grid).
961     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
962       and parameters (note: calcWindStress replaces .NOT.readwindstress).
963     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
964    
965    checkpoint58
966    o add "--embed-source" option to genmake2 which, when the supporting
967      tools can be compiled (as determined by genmake2) will turn on the
968      embed_files package which then embeds the entire MITgcm source code
969      (*.[fFhc] + Makefile) used for the build within the executable
970      - requested by CNH but off by default
971      - adds a paltry <9MB to the mitgcmuv executable in most cases
972      - only writes the output when useEMBEDSRC in eedata is true
973    o clean up 3-dim. relaxation codes:
974      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
975      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
976      * Thanks to Tom Haine for testing!
977    
978    checkpoint57z_post
979    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
980      affects output (@ truncation level) of exp. plume_on_slope ; updated.
981    o fix the pickup behavior for obcs in combination with ptracers
982    o fix a bug in ptracers_external_fields_load
983    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
984      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
985    o transfered surface NH pressure to eta field (if exactConserv).
986    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
987         and update lab_sea output.txt file.
988    o completing 3-dim. relaxation code: additional term
989         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
990      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
991      * At compile time, in "EXF_OPTIONS.h" set
992          #define  ALLOW_CLIMTEMP_RELAXATION
993          #define  ALLOW_CLIMSALT_RELAXATION
994      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
995          tauThetaClimRelax3Dim = 15552000.0,
996          tauSaltClimRelax3Dim  = 15552000.0,
997      * 3 cases:
998          1) Use a constant-in-time 3-dim. field
999          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1000          3) Real-time relax. to time-evolving prescribed field
1001    o Adding Laplacian-type smoothness constraint on
1002      initial and boundary (forcing) controls (ic, bc)
1003      * enable at compile-time via
1004        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1005      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1006      * Absolute scale somewhat unclear so far
1007      * no area weighting was included since no other cost term does so far
1008    
1009    checkpoint57y_post
1010    First step for a NLFS adjoint
1011    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1012    o new init. routines for calc_r_star, calc_surf_dr
1013    o still need to deal with ini_masks_etc
1014    o testreport seemed happy
1015    checkpoint57y_pre
1016    
1017    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1018    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1019    o add new offset feature to offline pkg (plus minor cleanup)
1020    o cfc fixes for final year of integration
1021    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1022      be in GCHEM_OPTIONS).
1023    
1024    checkpoint57x_post
1025    o fix testreport Pb in multiple test experiment.
1026    o cleanup our namelist syntax in verification:
1027      - make it more F95 standards compliant (some work still needed)
1028      - allows the vast majority of our tests to work with gfortran
1029    o Non-Hydrostatic:
1030     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1031     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1032    o Allow to apply AB on T,S rather than on AB(gT,gS):
1033     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1034     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1035       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1036     - need a "clever" read_pickup to restart from the other AB formulation
1037    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1038    o remove some unused variables (reduces number of compiler warnings)
1039    o adjoint
1040      * Disable useVariableViscosity for adjoint for time being
1041        (there are a number of extensive recomputations)
1042      * Initialize certain variables needed for adjoint
1043    
1044    checkpoint57w_post
1045    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1046                 fix the singleCpuIO RS version of MDSWRITEFIELD
1047       and add a WARNING if using globalFiles=T with multi-processors.
1048    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1049      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1050    o tracer advection scheme:
1051      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1052       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1053       was not very convenient).
1054      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1055       (further tests needed for the implicit DST & Flux-Limiter schemes).
1056    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1057      and sRef for convenience, handy, when you want to initialize
1058      ptracers in a large domain with a constant non-zero value. Also,
1059      untangle ptracers_init.F a little.
1060    
1061    checkpoint57v_post
1062    o change dome exp. to use variable viscosity in side-drag terms.
1063    o remove all the files from the cfc_offline test since they are now
1064      incorporated into tutorial_cfc_offline which has been producing
1065      identical results for a few days of testing
1066    o add new parameter: sideDragFactor to enable half-slip-side BC
1067      and change side-drag S/R to use viscosity from mom_calc_visc
1068      (can switch back by setting sideDragFactor=0.); affects results at
1069      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1070       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1071    o vorticity & strain are now computed without masking, to account for
1072      no-slip-side BC in variable viscosity calculation ; mask is applied
1073      anyway later on, before computing advection/coriolis terms.
1074    o modify exp4 to test new obcs support for reading from external files
1075      and for passive tracers
1076    o fix behavior of ptracers_monitor when monitor output is written to a
1077      netcdf-file; still not independent of monitor.F (writes in the same
1078      file).
1079    o change default value of tRef (put a uniform, meaningful value for ocean
1080      & atmos) and initialize sRef (was missing, as Martin mentioned).
1081    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1082      to be proportional to enstrophy dissipation length.  Thus,
1083       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1084      This is now consistent with Smagorinsky and with the manual.
1085    
1086    checkpoint57u_post
1087    o OBCS and PTRACERS: add open boundary support for passive tracers
1088      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1089        OB-values from file; this is not different from the way theta and salinity
1090        are treated
1091      - however, Orlanski-radiation conditions are not supported, and the model
1092        will stop if you use pTracers and Orlanski at the same time.
1093      - beefed up the rountine obcs_external_fields_load: now only those open
1094        boundary values are overwritten with values from files for which there
1095        are really files, otherwise the OB-fields remain untouched. This makes
1096        it possible to use different OBs at different ends of the domain (as
1097        with EXF)
1098    o reduce number of exch calls in shap_filt (s2).
1099    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1100      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1101    
1102    checkpoint57t_post
1103    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1104    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1105      same truncation, independent of the face number: affects affects several
1106      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1107    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1108      note that biharmonic viscosity + no-slip was not tested in any experiment.
1109    o fix bug in non-linear free-surf side-drag ; generate new output for
1110      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1111    o make mnc honor the writeBinaryPrec flag for most kinds of output
1112    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1113    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1114      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1115    o add brackets in multi-terms sum to get same truncation, independent of
1116      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1117      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1118    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1119      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1120      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1121      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1122      Suggested values of viscosity parameters found in mom_calc_visc.
1123      Many new viscosity diagnostics available.
1124    
1125    checkpoint57s_post
1126    o Add clearing-house for viscosity calculations, mom_calc_visc and
1127      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1128      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1129      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1130      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1131      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1132      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1133      ViscAhStrain and viscAhTension are now retired.
1134    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1135    o In response to JMC's bug report, genmake2 now ignores any soft-links
1136      that it finds in the *current* directory when searching for files.
1137      Soft-links found in any other source directories will still work as
1138      they did before.
1139    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1140      a C routine to unlimit the stack size
1141    o mnc-ify pkg/aim snapshot vars
1142    o mnc-ify pkg/land as requested by Daniel
1143    o various changes to mnc including:
1144      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1145      - output can now be grouped so that all files within a group
1146          change the ITER portion of their names in lock-step together
1147      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1148          and works with both EXCH1 and EXCH2 (but needs more testing)
1149      - writing works for all verification test cases w/ g77 on Linux
1150    
1151    checkpoint57r_post
1152    o make MNC variable initialization happen earlier
1153    o add diagnostics for (almost) each term of the momentum Eq.
1154    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1155    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1156    o remove MINIMAL_TAVE_OUTPUT option ;
1157      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1158    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1159      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1160    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1161    o add time-dependent SST, SSS control
1162    o cost terms in ecco/ modularized (new cost_generic.F)
1163    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1164    o new infrastructure for seaice model vs. obs misfits in seaice/
1165      * driver from the_main_loop.F is seaice_cost_driver.F
1166      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1167      * gradient check in Exp. 6a of natl_box_adjoint/
1168    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1169      (see README file)
1170    
1171    checkpoint57q_post
1172    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1173    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1174      - bug was reported by Jean-Michel and Ian Fenty
1175    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1176      update exp. cpl_aim+ocn output.
1177    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1178      Needed for high-res. runs with large global files
1179      to be able to limit tapelev size
1180    o Changed some tests for adjoint:
1181      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1182      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1183      * global_ocean.90x40x15/ back to default 3-level checkpointing
1184    o Modifications to enable scripted COMMON to MODULE conversion
1185      * verification/OpenAD/code/ has necessary scripts and description;
1186      * converts, compiles and runs successfully;
1187    
1188    checkpoint57p_post
1189    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1190    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1191      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1192    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1193    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1194      (was already the case for dissipation with mom_vecinv,
1195       and also the case for grad.PhiHyd when staggered-timeStep)
1196      This will allow to put dissipation out-off the AB time-stepping.
1197     Unfortunately, affects truncation error. Update output of exp. that "fails"
1198      (cg2d matching number) and leave the others for later: front_relax(10),
1199      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1200      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1201    
1202    checkpoint57o_post
1203    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1204      (2) its ready to be documented during the 20050801 DocFest
1205    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1206      for ideal_2D_oce and lab_sea on linux_ia32_g77
1207    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1208      in global1x1_tot/code_seaice_adj to access indices 32, 33
1209      (worth another tag)
1210    
1211    checkpoint57n_post
1212    o adding precip control xx_precip 32
1213    o adding swflux control xx_swflux 33
1214    o Replacing 10 forcing penalty cost routines by 1 generic.
1215    o Implementing partitioning in time-mean and variable adjustment
1216      for atmos. state.
1217    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1218    o in natl_box_adjoint:
1219      * updated exp 1 to 10
1220        (but does not have time-mean vs. variable split results yet)
1221    o updated global1x1/*_seaice_adj/
1222      to incorporate latest changes
1223    o enable useSingleCpuIO for mdsio vector routines
1224      (applies in particular to tapelev I/O)
1225    o removed inefficient K-loop in all active_file*control*.F
1226    
1227    checkpoint57m_post
1228    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1229      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1230    o pkg/exch2: filling of face-corner halo regions is optional
1231      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1232    
1233    checkpoint57l_post
1234     tag before updating tutorials (pre-release-2)
1235    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1236       for output and interpolation of input fields onto model grid)
1237    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1238       Affects results of exp. rotating_tank ; update output.txt.
1239    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1240          and taking the square quantity and/or using a fraction-weight field.
1241    o fix aim_diagnostics_init.F mate numbers.
1242    o add mnc output capability to diagnostics/diagstat and update
1243      our cvsignore files for the ACSII output generated
1244    
1245    checkpoint57k_post
1246    o lab_sea now uses diagnostics package and provides a suite of
1247      new EXF diagnostics output.
1248    
1249    checkpoint57j_post
1250    o exf
1251      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1252        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1253        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1254      * extended diagnostics output
1255        - now includes all EXF variables
1256        - hs, hl moved to common block
1257        - separate S/R for diagnostics, called after ctrl vector is added
1258        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1259        - EXFqnet contains true Qnet (i.e. includes qsw)
1260      * updated verif. lab_sea, global_with_exf
1261      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1262        to ensure that diagnostics sees a true EXFqnet
1263    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1264    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1265      several times with different frequencies.
1266    o mnc-ify the thsice package as requested by Daniel Enderton
1267      - the monitor--MNC output needs work
1268      - many attributes need to be added (most are currently blank)
1269    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1270      - many attributes need to be added (most are currently blank)
1271    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1272    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1273    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1274      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1275         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1276    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1277     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1278    
1279    checkpoint57i_post
1280    o Diagnostics package was changed: diagnostic allocation is now deactivated
1281      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1282    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1283      add 1rst Order upwind vertical Shear.
1284    o add a quick fix for A/B checkpointing in OFFLINE mode
1285    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1286      end-run around the C/Fortran linking horror in eesup/src/timers.F
1287    o added pkg/runclock: allows user to terminate run based on wall clock
1288    o added non-hydrostatic scaling parameter: nh_am2
1289    o pkg/my82: futile attempt to make results compiler-independent by adding
1290      some "_d 0", etc. no effect.
1291    o for mnc output, fill the 'T' coordinate var with myTime and create a
1292      separate 'iter' variable for iteration count
1293    o pkg/diagnostics:
1294      add new capability: output of Global/Regional & per-level statistics ;
1295      tested against monitor output (including land & thSIce) on various exp.
1296    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1297    
1298    checkpoint57h_done
1299      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1300      data.diagnostics, data.gchem, data.ptracers) is done.
1301    
1302    o pkg/diagnostics: prepare for Global/Regional statistics.
1303      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1304    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1305      and rename it: DIFFERENT_MULTIPLE
1306    
1307    checkpoint57h_post
1308    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1309    o pkg/diagnostics: change output frequency, now in seconds (instead
1310      of Nb of iterations). This requires to change data.diagnostics.
1311    checkpoint57h_pre
1312    
1313    o in mnc, let the user create the output dir if both mnc_outdir_date
1314      and mnc_outdir_num are false
1315    o add fflags() to pkg/diagnostics which allows one to specify, on a
1316      per-file basis, the file precision [default behavior is unchanged]
1317    o added diagnostics to pkg/kpp, including computation of mixed layer
1318      depth based on a temperature/density criterion
1319    o updated verification/natl_box to test the new pkg/kpp diagnostics
1320    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1321    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1322    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1323      not mnc -- this mistake was found by JMC and is now corrected
1324    
1325    checkpoint57g_post
1326    o add Adams-Bashforth 3rd Order time stepping:
1327      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1328      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1329    checkpoint57g_pre
1330    
1331    o make lambda[Theta,Salt]ClimRelax spatially varying
1332      (default remains spatially uniform constant based on tau)
1333    o added new control variables
1334      * init. uVel, vVel, etanN
1335      * lambda[Theta,Salt]ClimRelax
1336    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1337      (suggested by G. Forget)
1338    
1339    checkpoint57f_post
1340    o add parameter "baseTime" = model base time = time at iteration zero
1341      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1342      account for baseTime shift
1343    o move Coriolis arrays from PARAMS.h to GRID.h
1344    checkpoint57f_pre
1345    
1346    o mnc-ifying the seaice package
1347    o introduced an alternative length scale calculation for use in the limiting
1348      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1349    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1350    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1351      as well as grad(vort3).  Made it compatible with both approximate form
1352      for the cubed sphere and full form of these gradients.  Added flag
1353      useFullLeith to select between approximate and full form.  
1354    o add "d0" in getcon.F to reduce differences between compilers/platforms
1355      update output.txt of exp. fizhi-gridalt-hs
1356    o change port_rand funtion to allow to set the seed.
1357    o fix obscure MNC bug involving conversion between reals and integers
1358      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1359        new version is now more standards-compliant
1360    o adjoint-related modifications
1361      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1362      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1363      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1364    
1365    checkpoint57e_post
1366    o Adding eddy stress controls a la Ferreira et al.
1367    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1368    
1369    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1370      update output.txt of exp. fizhi-gridalt-hs
1371    o add more "Z" dimensions and associated coordinate vars to MNC
1372    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1373    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1374      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1375      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1376      months and years.  Requires pkg/cal.
1377    o diagnostics: add pickup functionality
1378      - off by default for backwards compatibility
1379      - current version only uses MDSIO -- MNC will be added
1380    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1381    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1382    
1383    checkpoint57d_post
1384    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1385    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1386      output from the diagnostics package
1387    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1388    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1389      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1390    o add coordinate variables to the MNC output from the diagnostics package
1391    o change MNC-flags default value: true when useMNC=TRUE
1392    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1393      the ability (off by default) to read the grid information using MNC
1394    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1395    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1396    o do snap-shot diagnostics at the middle of the time-interval (instead of
1397      at the end).
1398    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1399      new test for AIM with thSIce + slab-ocean
1400    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1401    o move state variable diagnostics to the beginning of the time step ;
1402      (note: still needs some work specially for snap-shot diagnostics)
1403      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1404    
1405    checkpoint57c_post
1406    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1407    o generate new output.txt files on faulks with g77 & the new -ieee option
1408    checkpoint57c_pre
1409    
1410    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1411      update output.txt of exp. global_ocean.90x40x15
1412    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1413      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1414    o add saltFlux(+File) forcing capability with periodicExternalForcing
1415    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1416    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1417    o improvements for the MNC output from DIAGNOSTICS:
1418      - correct handling of the unlimitied dimension
1419      - all dims now have associated coordinate variables
1420      - variables located at U, V, and Corner ("Z") points are now written
1421        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1422        *all* data points are output
1423    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1424    o added pkg/seaice/seaice_monitor.F
1425    o mdsio_readfield.F can now read files visible only to master MPI process.
1426    o pkg/seaice: some test code for ice-modified ocean stress
1427    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1428      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1429      spurious negative numbers for precipitation and humidity.  Will cause
1430      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1431    o pkg/ctrl/
1432      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1433        May be enabled via doPackDiag
1434      *  introduce z-scaling of
1435         + gradient (doZscalePack) and
1436         + control (doZscaleUnpack)
1437    o pkg/mdsio/
1438      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1439      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1440    
1441    checkpoint57b_post
1442    o simplify options in diagnostics_fill arguments (remove weird combinations)
1443    o fix MNC coordinate variables so that they now contain per-face index
1444      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1445      general, EXCH2 grids are only aligned to a "local" coordinate system
1446    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1447    o Implement instantaneous output within pkg diagnostics:
1448      setting a negative frequency in data.diagnostics produces
1449     "snap-shot" output (as opposed to time-average if freq > 0)
1450    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1451      NOTE: change ptracer diagnostics name: use 2 characters to work with
1452            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1453    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1454      becomes the coordinate variable for the 'T' dimension
1455    o add CF-style coordinate variables to MNC
1456      - just a first cut:  numbers are meaningless on the cubesphere and
1457        missing along the T axis but otherwise it works!
1458    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1459    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1460    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1461      this is based directly on what the model compute, so that the content of
1462      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1463    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1464    o clean up build options files for SunOS, in particular
1465      - remove -traditional from xmakedepend
1466      - change -xarch=v9 to -xarch=native for f77
1467      - restore use of make (not gmake)
1468      - add CC=gcc if using g77
1469    o changes per discussion of AM, JMC, & EH3 today:
1470      - move redundant "grid" variables out of "state" -- in preparation of
1471        creating proper CF-style coordinate variables and in recognition
1472        that any/all grid variables can be easily copied (eg. w/NCO) from
1473        the grid files into any of the other NetCDF files
1474      - *always* output grid variables with MDSIO (this will eventually be
1475        changed)
1476      - output MNC grid file if useMNC is true
1477    o every instance of _END_MASTER() has been found and replaced with
1478      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1479      preprocessors
1480    o re-arrange diagnostics pkg initialisation:
1481     - allow each package to extend the available diagnostics list
1482     - add some checking and fix small problems (multi-threaded, ...)
1483     - new S/R diagnostics_fill (replace fill_diagnostics):
1484       look through the short list of active diag. (instead of the long list)
1485       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1486    
1487    checkpoint57a_post
1488    o this set of changes restores TAMC compatibility
1489      tested for global_ocean.90x40x15 adjoint on trough
1490      (what a pain)
1491    
1492    checkpoint57a_pre
1493    o some modifs in tools/build_options for sunos
1494    o call ctrl_pack for ctrl at end for optimcycle=0
1495    
1496    checkpoint57
1497    o add horizontal bi-harmonic viscosity for vertical velocity
1498      - new parameter viscA4W (defaults to viscA4)
1499      - affects only non-hydrostatic code
1500      - to be done: no-slip lateral boundary conditions
1501    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1502    o implement Implicit Vertical advection for pTracers
1503    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1504      (implemented also for implicit vertical diffusion & advection)
1505    o OBCS: extend application of tracer open boundary conditions
1506      to a strip beyond the boundary of width Olx/Oly
1507    o add call monitor to TAF set of required calls (flow directives)
1508      and include in natl_box_adjoint
1509    o untangle a few ifdefs related to cost, ctrl, autodiff
1510      untangel a few ALLOW_ECCO_OPTIMIZATION
1511    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1512      (theta2, salt2 in ecco_cost_weights)
1513    
1514    checkpoint56c_post
1515    o OBCS as control variables
1516      - update ctrl_ad_diff.list, obcs_ad_diff.list
1517      - remove balance of obcs controls from default
1518      - fix index bug nobcs in ctrl_init
1519      - fix dummy fields filen in ctrl_pack
1520      - add dummy weights for obcs
1521    o lsopt: comment out fort.94 output
1522    o optim:
1523      - remove unnecessary header files
1524      - adjusted namelists
1525      - add xerbla.F to Makefile
1526    o exf:
1527      - multiple modifications of exf_check_range
1528      - unit change in exf_init_runoff from [m/year] to [m/s]
1529    o mdsio:
1530      - i/o-vector change debugLevel from debLevA to debLevB
1531    
1532    checkpoint56b_post
1533    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1534      is called from DO_THE_MODEL_IO
1535      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1536      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1537      - clean up PTRACERS_WRITE_TIMEAVE a little
1538    o add another verification experiment that tests both the cfc-pkg and
1539      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1540      reactive tendencies treated inline with regular timestepping
1541    o testreport previously did a lousy job of comparing small numbers, so
1542      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1543      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1544      testreport.
1545    o ptracers_monitor: bug fix for MPI
1546    
1547    checkpoint56a_post
1548    o GCHEM: finish reorganizating the package
1549      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1550        (introduces another 3D-array for each passive tracer, but only if
1551        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1552        gchemTendency is not needed because the timestep is done separately)
1553      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1554      - GCHEM is now---more or less cleanly---separate from PTRACERS
1555      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1556        so clear to me how that should be done in a general way.
1557    o CFC: improve formatting of output in CFC_ATMOS
1558    o PTRACERS:
1559      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1560        that ALL experiments with ptracers enable can be checked. This makes
1561        GCHEM_MONITOR obsolete.
1562      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1563        monitorFreq
1564      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1565    o add PTRACERS (PTR0[1-5]) to testreport output
1566    o exf_check_range:
1567      * default changed to .TRUE.
1568      * will check values for niter0 if debLevA, every timestep if debLevB
1569      * STOP in exf_check_range if 'out of range'
1570      * range chosen generous to allow for potential extema
1571      TBD: a version with stricter range
1572           permitted range would be runtime parameters
1573    o GMredi:
1574      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1575      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1576      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1577    o GCHEM:
1578      - move call to GCHEM_FORCING_SEP, so that it is now called before
1579        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1580      - introduced a useGCHEM runtime flag and applied it everywhere.
1581      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1582        this flag is now only visible within GCHEM-pkg routines.
1583      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1584        be replaced by a 3D array that is computed before thermodynamics; for
1585        this, the tracer ID iTracer had to be included into the parameter list
1586        of ptracers_forcing
1587      - set up forward_step to call gchem_forcing, that will replace
1588        gchem_forcing_int in ptracers_forcing
1589      - cleaning up
1590    o small cleaning of exch2: remove files that are also in eesupp/src
1591    
1592    checkpoint56
1593    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1594    o mnc: cleanup "full" files--fixes out-of-memory problem
1595    o ECCO-GODAE
1596      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1597      * fully merged and updated from SIO code
1598        windstress sign change affects
1599        - exf_inscal_[u/v]stress
1600        - sign of xx_tau[u/v] adjustments
1601        - signs in cost_scat
1602      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1603      * natl_box_adjoint updated and compressed
1604      * 2-level checkpoint switch added
1605        (tested in EXP. 1 of natl_box_adjoint)
1606      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1607    o SVD
1608      * first complete, non-hacked version for SVD calculations
1609      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1610        performed via direct access files admtlm_vector.it????
1611        (via ctrl_[un]pack)
1612      * optimcycle is used for ARPACK iteration counter
1613        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1614      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1615        and add linear transforms where necessary
1616      * controls are initial/final SST, SSS (can be extended; need to check
1617        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1618    o mdsio: filename info to both stderr, stdout
1619    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1620      from sign change
1621    
1622    checkpoint55j_post
1623    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1624      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1625    o add consistent build directories and .cvsignore files to verification
1626    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1627    o make all subroutines 30 or less characters in length for certain older
1628      compilers to work (a thorough search only turns up two routines in
1629      pkg/ptracers)
1630    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1631      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1632    
1633    checkpoint55i_post
1634    o change arrays for total vertical diffusivity (2.D if explicit,
1635      3.D if implicit) ; each ptracer uses its own background value.
1636    o added mnc/NetCDF output capability to ocn_compon_interf
1637      - added bits to verification/cpl_aim+ocn so that it can run on
1638        ITRDA and other clusters without the mpirun "-wd" option
1639    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1640      configuration
1641    o give MNC the ability to create additional files rather than
1642      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1643      - the default is just less than 2GB which is a practical limit
1644        on many systems
1645    o Compute the non-local term using either KPP vertical diffusivity (=default)
1646       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1647    
1648    checkpoint55h_post
1649    o add verification test "vermix"
1650    o remove all the *_ioinc flags and replace with the single global
1651      outputTypesInclusive flag
1652    o allow to set a vertical profile of vertical diffusivity for T & S
1653    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1654    o useMNC moved from data.mnc to data.pkg
1655    
1656    checkpoint55g_post
1657    o Renaming carbon AD experiments to comply with testreport conventions
1658    o Updating adjoint of Held-Suarez hs94.1x64x5
1659    o Fixing directives for non-ECCO forward_step, after ECCO directives
1660      have been fixed to avoid recomp. of do_oceanic_phys
1661      Works well for global_ocean.90x40x15,
1662      but recomp. issue remains for carbon
1663    o Updating adjoint output for natl_box_adjoint after
1664      pkg/ecco has been modified (see taga c55d_post)
1665    
1666    checkpoint55f_post
1667    o rename to timeave_init_fixed
1668    
1669    checkpoint55e_post
1670    o some delicate re-shuffle of store directives to avoid one
1671      extra call of do_oceanic_physics
1672      affects ecco_the_main_loop.F, do_oceanic_physics.F
1673      checkpoint_lev1_directives.h
1674    o NB: this may break global_ocean adjoint temporarily,
1675      but it is clear how to fix it. Will do later, need this now.
1676    
1677    checkpoint55d_post
1678    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1679    o ecco_cost_weights is modified to 1x1 runs
1680    o modifs to allow observations to be read in as
1681      single file or yearly files
1682    o enable to read exf forcing fields as either
1683      single file or yearly files (flag useExfYearlyFields)
1684    checkpoint55d_pre
1685    
1686    o switch between 2-level and 3-level checkpointing
1687    o add ability of MNC to write local and "partial" (eg. 2D slices where
1688      the full 3D field is never actually stored) arrays to NetCDF files
1689      with the correct (that is, the complete multi-dimensional) set of
1690      array indicies
1691      - used in mom_vecinv() to write the diagFreq output
1692      - tested (demonstrated) in verification/aim.5l_cs
1693    o further mnc-ification
1694      - add verification/lab_sea to the list with mnc setups
1695      - fix undefined mnc v-names in cd_code
1696      - add kpp to mnc output (both snapshot and timeave)
1697    o non-hydrostatic code
1698      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1699        in calc_gw.F
1700      - defaults to viscAh
1701      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1702        friction or Leith) in non-hydrostatic mode, as long as there is
1703        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1704    o pkg/cost
1705      extend simple cost functions to treat time mean quantities
1706      (T,U,V) via cost_accumulate_state from cost_tile
1707    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1708        be 2 times larger than the minimum size the advection scheme requires.
1709        now get a perfect conservation of salt in advect_cs test-exp (updated)
1710    o GGL90 (Gaspar's TKE mixed layer)
1711      - add horizontal diffusion of TKE, requires exchanges in
1712        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1713        default. In OPA there is no horizontal diffusion of TKE but the
1714        mixing coefficients are computed from a horizontal average of TKE of
1715        6 points or so. I think that diffusion has a little more physical
1716        justification.
1717      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1718        was in vain)
1719      - mask tke-variable in ggl90_init
1720    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1721    o fix biharmonic diffusion on CS-grid.
1722    o more obcs stuff
1723      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1724        for reading boundary values. This routine is called from
1725        obcs_prescribe_read
1726      - updated obcs_check
1727      - changed sponge layer relaxation parameter units for days to seconds
1728      - turned off sponge layer by default
1729      - changed argument list of OBCS_CALC to myTime+deltaTclock
1730      - fixed about 35 bugs in obcs_external_fields_load
1731    
1732    checkpoint55c_post
1733    o obcs stuff
1734      - new runtime flags useOBCSprescribe, useOBCSbalance
1735      - re-arranged obcs_calc
1736      - moved exf_getobcs to obcs_prescibe_read
1737        obcs_prescibe_read is called after ORLANSKI stuff
1738        and independent of it (executable can contain all).
1739      - updated obcs_check
1740      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1741        These may be necessary only if tangential velocities are
1742        prescribed at OB, not sure, needs testing.
1743    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1744      which simplifies the calls and passes the ifc check-bounds test
1745    
1746    checkpoint55b_post
1747    o add a 2D scalar, Z location, exchange_2 routine.
1748    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1749      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1750      affects advect_cs results (for the wrong reason): update output.txt
1751    o use a more standard discretization for biharmonic viscosity ;
1752     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1753      affects results of dome set-up: update output.txt
1754    o fix gad_advection.F (CubedSphere part), back to version 1.23
1755    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1756    
1757    checkpoint55a_post
1758    o merged code to
1759      * prescribe/read time-dependent open boundaries
1760        (works in conjunction with exf, cal)
1761      * sponge layer code for open boundaries
1762      * each boundary N/S/E/W now has its own CPP option
1763        (healthy for the adjoint)
1764    
1765    checkpoint55
1766    o up-to-date adjoint of previous breaks
1767      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1768      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1769      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1770      - carbon: * remove tr1-related adjoint verification
1771                * add ptracer as control variable
1772    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1773      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1774    
1775    checkpoint54f_post
1776    o in verification/carbin/ remove experiment related to
1777      ALLOW_PASSIVE_TRACER (array tr1 etc)
1778      code_ad/ input_ad/ results_ad
1779    
1780    o add two new packages
1781      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1782        + subject to optimization (memory)
1783      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1784        + subject to reordering (many GOTOs in the original code)
1785        + so far opps is called for every (i,j) point, and then operates in
1786          the vertical; one may want to reorder the scheme in order operate in
1787          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1788          fields)
1789    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1790      - all verification tests compile and run with linux_ia32_g77
1791      - defaults are compatible with current input files--nothing
1792        should change if you were not previously using MNC
1793      - MNC output has been added in numerous places (eg. timeave)
1794        but there are still a few writes not yet do-able with MNC
1795        (this is in progress)
1796      - flags now allow for either/or/both use of MDSIO and MNC and
1797        documentation will soon follow
1798      - numerous small formatting cleanups for ProTeX
1799    o add version info (via BUILD_INFO.h) to MNC and stdout
1800    
1801    checkpoint54e_post
1802    o add two new packages
1803      - pp81 (Packanowski and Philander, 1981), Richardson number and
1804        stratification dependent mixing
1805      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1806      - these scheme operate in a similar manner as KPP (without ghat, of
1807        course), however there is only one diffusivity that is used for both
1808        temperature and salinity (and passive tracers)ç
1809    o add offline package
1810    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1811      provided by Stephanie Dutkiewicz
1812    o genmake2: add ability to search for C compilers and cleanup test output
1813      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1814    
1815    checkpoint54d_post
1816    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1817    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1818      leading to additional shift by 5 days each year of integration
1819       (i.e. leading to considerable offset over the years)
1820    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1821    o start with no AB and no initial filtering (staggerTimeStep):
1822      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1823    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1824      (external loading & cpl import/export stay in forward_step.F)
1825    o update coupling interface to work with new staggerTimeStep
1826    o change MDSIO ptracers_pickup.
1827    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1828    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1829    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1830    
1831    checkpoint54c_post
1832    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1833      this affects (truncation error) output.txt of test-exp:
1834       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1835    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1836    o change Qnet to always be the net heat flux, (+upward).
1837      affects (truncation error) output of natl_box exp.: updated
1838    o define the max number of passive tracers in PTRACERS_SIZE.h
1839    o start to test mnc routinely in exp0
1840    o add sea-ice loading (sIceLoad) as a new forcing field.
1841    
1842    checkpoint54b_post
1843    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1844       impressive on Altix and Opteron systems)
1845    o diagnostics can now write NetCDF files through the mnc package
1846    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1847    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1848    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1849      affects (truncation error) output of lab_sea & natl_box exp.: updated
1850    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1851    
1852    checkpoint54a_post
1853    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1854    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1855    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1856    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1857      + internal_wave (shift in writing cg2d_ini_res)
1858    checkpoint54a_pre
1859    
1860    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1861      - modified verification/lab_sea and natl_box_adjoint accordingly
1862    
1863    checkpoint54
1864    checkpoint53g_post
1865    o prepare splitting of thermodynamics: store convect.counter in common block
1866    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1867      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1868    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1869    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1870    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1871    o restore adjointability
1872    
1873    checkpoint53f_post
1874    o modifications that affect AIM experiment results (update output.txt):
1875      - no advection of S at top interface Nr (pkg/generic_advdiff)
1876      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1877    o AIM pkg:
1878      - include stability function into surf.Flux derivative relative to Tsurf
1879      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1880    
1881    checkpoint53e_post
1882    o merged cylindrical coord configuration
1883    o added rotating_tank experiment
1884    checkpoint53e_pre
1885    
1886    checkpoint53d_post
1887    o faulks upgraded: re-generate output.txt that have changed:
1888       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1889    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1890    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1891    o added Sadourny discretization of Coriolis
1892      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1893      - re-enabled use of omega3 (useAbsVorticity)
1894    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1895      vector-invariant equations
1896      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1897    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1898      hopefully without new bugs
1899      - still to do: biharmonic friction for non-hydrostatic w
1900    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1901    o regenerated output for global_ocean_ebm (using -ieee)
1902    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1903      of mom_common/
1904      - simple re-arrangement of instructions within computing loop
1905    checkpoint53d_pre
1906    
1907    checkpoint53c_post
1908    o new version of coupler for AIM+thSIce and Ocean models
1909     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1910     - land: change Evaporation of snow
1911     - aim with thSIce: fix bug in snow-precip.
1912    o changes to calc_gw.F
1913     - bug fix for w^2 term near the bottom boundary
1914     - (hopefully) improve the lateral slip boundary condtions for use with
1915        partial/looped cells
1916      - because the bug fix changes two verification experiments anyway (exp5
1917        and plume on slope), change the lateral boundary condition from half slip
1918        to the value of no_slip_sides
1919    o ebm package wasnt quite up to the parallel task. Fixed that.
1920    o Adjoint of EBM package + verification
1921      * TLM OK
1922      * ADM not sufficient accuracy yet (needs further testing)
1923    
1924    checkpoint53b_post
1925    o Commiting new energy balance model to repository
1926      * package is pkg/ebm
1927      * verif. is verification/global_ocean_ebm
1928      * references are in ebm_driver.F
1929    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1930    C        Global thermohaline circulation. Part I:
1931    C        Sensitivity to atmospheric moisture transport.
1932    C        J. Climate 12(1), 71-82
1933    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1934    C        Global thermohaline circulation. Part II:
1935    C        Sensitivity with interactive transport.
1936    C        J. Climate 12(1), 83-91
1937    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1938    C        Destabilization of the thermohaline circulation
1939    C        by atmospheric eddy transports.
1940    C        J. Climate 7(12), 1870-1882
1941    o Will need long integration testing.
1942    checkpoint53b_pre
1943    
1944    o created pkg/mom_common in preparation for variable viscosity code
1945    o renamed and split ini_mnc_io
1946    o pkg/land: only liquid water can diffuse or run-off
1947    o AIM using land: soil wetness availability account for snow
1948    o added printMapIncludesZeros to EEPARMS namelist
1949    
1950    checkpoint53a_post
1951    o restore TAMC compatiility for exf_constants.h
1952      (no usage of _d in .h)
1953    o Additional storing in KPP in an attempt to fix
1954      TAMC problem with adjoint of KPP code.
1955      (no success...)
1956      Identical code works fine with TAF.
1957    o Fixed verification/natl_box_adjoint experiments.
1958      Initial conditions for Experiments 4 and 5 are now
1959      set to "SEAICE_initialHEFF=0", which is more reasonable,
1960      and hence gives results closer to that of Experiment 2.
1961      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1962    
1963    checkpoint53
1964    o stable checkpoint with up to date adjoint
1965      TLM tests only run for 1st grdchk at the moment. Its unclear if
1966      this is a code problem or a problem with resetting code for g_
1967      variables that is being autogenerated wrong.
1968      Otherwise:
1969       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1970       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1971         are both still in chaos following their security messes.
1972    
1973    checkpoint52n_post
1974    o various build (mostly genmake2) changes including:
1975      - ability to build/run more easily within Cygwin and MacOS X
1976      - more complicated Makefiles with a stronger dependence on Gnu Make
1977    o pkg/seaice modifications
1978      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1979        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1980        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1981      - changed proxy for geostrophic velocity and updated
1982        verification/lab_sea/results/* accordingly
1983      - removed ADI dynamic solver from pkg/seaice
1984      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1985        they caused a segmentation fault under certain circumstances
1986      - removed unused field WATR
1987    o bug fix in exf-package:
1988      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1989         now reflect that.
1990    o small fixes in the cal-package:
1991      - set reference date to first of January for the 'model'-calendar
1992      - failing of cal_CheckDate in cal_FullDate now actually results in a
1993        warning
1994    o small modifications in exf-package to increase flexibility:
1995      - change climtempfreeze from a constant to a runtime parameter that
1996        is specified in data.exf_clim (default = -1.9)
1997      - introduce runtime parameter windstressmax (default = 2.0) that is
1998        specified in data.exf
1999    o fix in pkg/thsice:
2000      - update Evap (Tsf changes) to be consistent with Latent heat flux
2001      - maintain snow precipitation unchanged (even if Tsf >=0).
2002     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2003    
2004    checkpoint52m_post
2005    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2006      this does not change any of the results, because myIter=0 in swfrac always
2007      lead to jwtype=2 (the default anyway), but the call makes little sense
2008      as a default
2009    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2010    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2011      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2012    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2013    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2014    o extending useSingleCpuIO option to work with new exch2 I/O format
2015      - old-style, missing-tile I/O is still accessible by defining CPP
2016        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2017    o monitor package can write to NetCDF files and/or STDOUT
2018    o fix re-definition bug in MNC_GRID_INIT_ALL()
2019    o doc/api_reference added
2020      - a framework for building an API Reference Manual using all
2021        the "protex" comments embedded in the code
2022      - see pkg/generic_advdiff, pkg/mnc for examples
2023    o MNC:
2024      - make myThid the last argument for all subroutines
2025      - new default for the grid files: NO halos
2026      - add useMNC and other run-time flags
2027      - separate per-file-group handling of the unlimited dimension
2028      - early initialization of MNC w/ flags read at the eeboot stage
2029        and lookup tables set in initialize_fixed
2030      - write all MNC output to a freshly-created directory
2031    o thermodynamics sea-ice (thsice) is now tested with testreport.
2032    o test exp. advect_cs: use the standard cs32 grid ; update output.
2033    o Added functionality to grdchk:
2034      pick global i,j,k position (or nearest wet) where to perform check.
2035    
2036    checkpoint52l_post
2037    o new land formulation:
2038      a) use ground enthalpy as prognostic variable to ensure exact
2039         energy conservation.
2040      b) account for water temperature and for latent heat of freezing
2041         in all processes (rain, run-off, ground storage)
2042      c) compute surface and ground temperature implicitly.
2043    o aim_v23 modification for new land model:
2044      a) Treat separately land / ocean / sea-ice surface fluxes
2045         to allow implicit computation of land & sea-ice surface temp.
2046      b) add snow precipitation.
2047    checkpoint52l_pre
2048    
2049    o fix problem (when 1 tile is empty) in min/max monitor.
2050    o fix bug in timeAve (u,vZetatave in common block)
2051    o no restoring terms under ice for pkg/seaice
2052    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2053    o bug fix for pkg/seaice pickups
2054    o change MNC call locations and add coordinate attributes
2055    o mask vorticity at the corner ; affects global_ocean.cs output
2056    o fix ini_curvilinear_grid ; test CS experiments with mpi
2057    o aim.5l_cs: modify sea-ice fraction input file ; update output
2058    o exf: Adding simple range check routine for exf fields after read
2059    
2060    checkpoint52k_post
2061    o removed top-level directory "diags"
2062      - we migrated these functions to pkg/timeave a long time ago
2063    o fixed bug introduced in pkg/monitor
2064    o accuracy ctrlprec = 32 insuffient for gradient checks using
2065      averaged fields (I/O via cost_averages)
2066      -> use ctrl.h in active_file*.F to control I/O precision.
2067    o paramter list of CALL ADTHE_MAIN_LOOP
2068    o added initial do_the_model_io to ecco
2069    o set all ...Freq to zero after cost_final
2070      taveFreq, dumpFreq, pChkptFreq
2071    o MAIN and ECCO differentiability restored
2072    
2073    checkpoint52j_post
2074    o fix nchklev in tamc.h for global_ocean...
2075    o Bringing flow and store directives up-to-date
2076    o Really weird thing!
2077      call do_the_model_io from the_main_loop with parameters
2078      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2079      TAF places a faulty re-call of initialise_varia
2080      after cost_final call which should not be there!
2081    checkpoint52j_pre
2082    
2083    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2084      error messages
2085    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2086    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2087      debug output
2088    o modfied mdsio_writefield.F to handle non-global files under exch2
2089    o update AIM Cubed-Sphere exp (aim.5l_cs):
2090      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2091    o update AIM Equatorial Channel exp:
2092      use standard aim_v23 pkg and change the SST fields to be more realistic.
2093    o globalFile now works with exch2
2094    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2095      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2096    o limit timeave output for hi-res integrations
2097    
2098    checkpoint52i_post
2099    o removed CPP_EEOPTIONS.h from verification/*/code
2100    o updated the tiling for global_ocean_pressure
2101    checkpoint52i_pre
2102    
2103    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2104      the old pkg/aim).
2105    
2106    checkpoint52h_pre
2107    o shortened offending lines in exch2_send_rx?.template
2108    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2109    o genmake2: add build & execute test for NetCDF code
2110    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2111      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2112    o added useSingleCPUIO flag to monitor.F and mon_out.F
2113    o added temporary hack for sea-ice dynamics on the cube:
2114      metric terms are ignored and it is assumed that
2115      there is no sea-ice on cube faces 1, 2, 4, and 5.
2116    
2117    checkpoint52f_post
2118    o added exch2 cube routines to pkg/exch2
2119    o modified hs94.cs-32x32x5 to use it
2120    o added new grid files to hs94.cs-32x32x5
2121    checkpoint52f_pre
2122    
2123    checkpoint52e_post
2124    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2125      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2126    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2127      to work with implicit vertical advection and AB ;
2128    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2129    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2130     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2131    checkpoint52e_pre
2132    
2133    o fix bug in impldiff when Nr=1 or Nr=2.
2134  o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt  o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2135  o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.  o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2136  o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2  o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2

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