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revision 1.125 by jmc, Mon Jan 27 21:42:19 2003 UTC revision 1.890 by mlosch, Wed Oct 10 12:25:20 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
8      thermodynamics
9      - requires a little reorganization, which affects the testreport results
10        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
11        so that now the conservative form is tested
12      - add a few comments
13    o add missing cvs $Header$ or $Name$ in eesupp/*, pkg/* & verification/code*
14    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
15    o add new diagnostics to seaice: advective, diffusive fluxes (only for
16      multidim-advection, for scheme 2 they are not filled) and transports,
17      thermodynamic growth rates
18    o change units of EmPmR (inside the code) from m/s to kg/m2/s (mass flux) but
19      leave input file unchanged. Affects results @ truncation level (cg2d match)
20      and update output of experiments: lab_sea(6), global_ocean.90x40x15(10),
21      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
22      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
23      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
24    
25    checkpoint59h
26    o pkg/exf:
27      - improve vectorization by moving if-statement out of loops in
28        exf_mapfields, exf_radiation
29      - exf_bulkformulae.F: introduce 2D fields and vectorize code
30    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
31    o testreport:
32      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
33        monitor & update offline_exf_seaice exp. output.
34      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
35    o pkg/seaice:
36      - bug fix in the evp solver: boundary conditions were affected be
37        masking of zMax/zMin (changes results)
38      - minor bug fix in boundary conditions in seaice_calc_strainrates
39        (changes results for no_slip)
40      - seaice_lsr.F: make interpolation of eta dependent on boundaries
41      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
42      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
43        stress formulation and no-slip boundary conditions
44    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
45      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
46    o pkg/seaice: a first HSALT time stepping equation has been checked in
47    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
48      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
49      without requiring DO-IF statements
50    o pkg/thsice:
51      use continuous power-law function for partition of energy between lateral
52      melting/freezing and thinning/thickening ; old code using step function
53      still available with #undef THSICE_FRACEN_POWERLAW
54      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
55    o testreport: change AD testing : check against results/output_adm.txt
56      using same scripts as for forward test.
57    
58    checkpoint59g
59    o adjoint testing: in preparation for changing testreport:
60      - output format: cost and grad written on separated lines
61      - ad output results in directory "results" (instead of "results_ad")
62    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
63    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
64    o pkg/ecco: allow user defined cost function contributions
65    o testreport:
66      Allow to choose (per experiment) the list of tested output variables
67       and the main variable (used to issue a pass/FAIL ) ;
68      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
69      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
70      Also modify printing of summary:
71       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
72       b) echo the list of tested variables in the individual summary.txt of
73          each experiment.
74    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
75      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
76      (but still depend on the tile decompostion of the domain).
77    o pkg/seaice: change a discretization detail to make the B-grid code
78      "more symmetric". This change is likely to remove all "ridges/leads" that
79      where quasi-aligned with the grid in B-grid solutions. It may also be
80      the solution to the stress coupling issues with the B-grid.
81    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
82      remove .cvsignore from input dir. (since testreport no longer run here).
83    o pkg/thsice:
84     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
85     - fix reshaping of sea-ice just after advection:
86       melt all the ice only if ice-volume is too small.
87     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
88       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
89     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
90    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
91      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
92    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
93      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
94      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
95      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
96      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
97      -> update output.txt
98    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
99     this affects truncation error: -> update output.txt of exp:
100      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
101      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
102    
103    checkpoint59f
104    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
105    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
106      a bounded range (in forward mode)
107    o pkg/ecco, ctrl, autodiff and mom_common:
108     internal parameter controls, completements of implementations
109    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
110    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
111      (not seem any difference in testing results).
112    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
113       at face corners.
114    o pkg/generic_advdiff:
115     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
116      loop range indices for computing vertical advection tendency
117      and do the calculation in the interior only (no overlap) ;
118      for now, only implemented for SOM advection (to save CPU time).
119     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
120    o exch2 adjoint
121      First set of changes:
122      - add exch2 hand-written adjoint templates
123      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
124        This will require cleanup in pkg/autodiff/*.F
125        (changed routines currently kept separate in verif. code/)
126      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
127        that used to hide exch2 or cubed-sphere specific code
128        (commented via 'cph-exch2')
129    o pkg/seaice
130      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
131    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
132       output of global_ocean.cs32x15.thsice .
133    
134    checkpoint59e
135    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
136      for B-grid vector (not yet tested) and C-grid vector (<- only used
137      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
138    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
139      (#ifdef ALLOW_SALT_PLUME)
140    o gather_2d/scatter_2d: removed halo regions
141    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
142      scheme and the corresponding test case (under front_relax dir). For now,
143      only available with Skew-flux form and not yet tested in realistic set-up.
144      adjoint: store directives updated, but gradient checks deteriorated,
145      so maybe GM/Redi adjoint is now broken.
146    o seaice adjoint
147      * add AREA, HEFF, HSNOW as control variable
148        (should not change lab_sea results)
149      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
150    o pkg/seaice:
151      * added computation of saltFlux in seaice_growth;
152        For time being, sea ice salinity is assumed constant
153        contribution of snow flooding to freshening of sea ice is neglected.
154        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
155        defaults to 0.0 in order to maintain backward compatibility.
156        Typical values for SEAICE_salinity are 4 to 10 g/kg.
157      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
158      * added SEAICE_availHeatFrac, which specifies fraction of surface level
159        heat content used to melt or grow ice
160      * commented out cap of HICE: it helps keep ice thinner
161      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
162      * applied OBCS T/S mask to HEFFM sea ice mask
163    
164    checkpoint59d
165    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
166     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
167     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
168    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
169     and change default value of parameter "GM_Small_Number";
170     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
171       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
172       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
173    o pkg/ecco: cost function when applying pkg/smooth to controls
174    o pkg/ctrl: add forcingPrecond run time parameter
175    o pkg/seaice:
176     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
177     - fix bug in metric terms of u-equation in LSR solver (implicit part),
178       changes verification/lab_sea
179     - rearrange implicit part of u-equation in LSR solver to make it easier to
180       read, understand, and debug. This causes changes at the truncation level.
181     - fix (serious) bug in the boundary conditions (sign error in the implicit
182       part) of the LSR solver. Changes all LSR results.
183     - fixed problem with HSNOW initialization to avoid thick snow when AREA
184       is initilized with small values - does not change lab_sea results.
185     - added HsnowFile initialization capability
186    o pkg/smooth: addition to model/src and pkg/ctrl so allow
187     initialization of pkg/smooth and application to control vector
188    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
189    o dependencies: pkg/profiles requires pkg/cal
190    o pkg/profiles:
191     - added option ALLOW_PROFILES_GENERICGRID
192         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
193         that interpolation information (grid points and coefficients) is provided
194         within the netcdf input files.
195         -> sample matlab scripts can be found in MITgcm_contrib/gael
196         that allow you to prepare netcdf input files.
197     - also modified: cleaner include statements, cleaner error print statements,
198       cleaner stops when error, and more tests of the netcdf input files consistency.
199    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
200    o pkg/seaice:
201     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
202       requires a new routine: seaice_diagnostics_fill.F
203     - make sure that seaice does not move if not forced (pressure replacement
204       method, Hibler and Ip, 1995), changes results
205     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
206     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
207       It is turned off by default (=-1.), because it changes the results.
208     - make it possible to read AREA from a file, too.
209    
210    checkpoint59c
211    o add S/R and diagnostics for oceanic mixed-layer depth
212    o move GMRedi call after all vertical mixing schemes (including KPP)
213    o pkg/thsice:
214     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
215      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
216    o pkg/obcs:
217     - bug fix for balance code
218    o pkg/seaice:
219      - allow values of SEAICE_elasticParm > 1
220      - add new parameter SEAICE_evpTauRelax as an alternative
221        to SEAICE_elasticParm
222      - make lsr boundary conditions free slip (by default), changes result
223      - add code for no slip boundary conditions for lsr
224      - set minimum of zeta to zero (and not 4e8) (changes results)
225      - add a cap on AREA after advecting AREA if seaice_growth is not called
226    o change calculation of Visbeck K:
227      - no longer depend on tapering scheme; instead, compute slope (limited
228        by GM_maxSlope). this is equivalent to what was comuted before with
229        clipping or linear tappering.
230      - fix vertical averaging (wrong by 1/2 level)
231      - leave the old version (but will not be maintained) within
232        #ifdef OLD_VISBECK_CALC / #endif
233      - update output of exp. ideal_2D_oce
234    o change error catch in calc_r_star to improve vectorization
235    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
236      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
237    o adjoint:
238      Re-organized adjoint checkpointing according to Matt Mazloff
239      (but with modifs/completions/cleanups)
240      Storing is now bundled into large arrays to optimized I/O
241      (and second step in cleanup of the_main_loop)
242    
243    checkpoint59b
244    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
245      - export/import (between ocean & coupler) fields needed for ocean DIC.
246    o pkg/seaice:
247      - get rid of three more exchanges seaice_calc_viscosities (required
248        different loop boundaries in seaice_lsr and seaice_ocean_stress)
249      - bug fix in seaice_ocean_stress (update of lab_sea required)
250      - reduce loop boundaries to necessary minimum also in seaice_evp
251      - go back to the old way of computing deltaC/Z as the adjoint likes that
252        better
253    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
254      passive tracer to an Age Tracer) + update output.txt
255    o pkg/exf:
256      - implement A-grid / C-grid selection for wind-stress input files.
257      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
258      for now, in exf_bulk_largeyeager04.F only :
259      - change implementation for case where windspeed + 2. components wind-stress
260        are read-in. AND use rhoConstFresh to convert evap.
261    o pkg/seaice:
262      - use correct EXCH_UV for wind-forcing (on A-grid).
263      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
264        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
265    o pkg/exf:
266      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
267      EXF_INTERPOLATION:
268      - merge global_with_exf/code version of exf_interp_read.F
269        to the main code ;
270      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
271        reading the file ; Important: This options needs to be defined to recover
272        previous code.
273        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
274      - no longer loose real*8 precision along the way when using exf_iprec=64.
275    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
276      - change discretisation of evp-solver in order to avoid another exchange
277        (changes lab_sea) and clean up a little
278      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
279        help the adjoint (this also changes the results slightly)
280      - add a few "_d 0" where they had been missing in seaice_evp.F
281      - cleaning up: remove unused seaice_calc_rhs.F
282    o pkg/exf: some cleaning-up:
283      - change various "constants" into runtime parameters
284      - cleaned-up Large&Yeager04 routine which should eventually
285        replace exf_bulkformulae.F (changed names of S/R and CPP)
286        and merged various ALLOW_ATM_WIND options
287     only used with thsice pkg (in thsice_get_exf.F):
288      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
289        which are used when useStabilityFct_overIce=TRUE (= the default)
290      - change default values of ice & snow emissivity and scale downward LW
291        by ice & snow emissivity.
292    o pkg/thsice:
293     fix few little problems, in thsice_calc_thickn.F:
294      - growth vertically (and not laterally) if iceFrac == iceMaskMax
295      - melt only laterally if hIce < hThinIce (as the comments say)
296      and in thsice_extend.F:
297      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
298      - start to form ice as soon as the minimum ice-volume is reachable.
299     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
300      and cpl_aim+ocn
301    o pkg/kpp
302     - move computation of surface related input fields to KPP into a new
303       subroutine kpp_forcing_surf.F
304     - remove wrong (within bi,bj loops) EXCH calls.
305     - little cleaning (add argument myThid in last position, cvs header ...)
306     - for now, fix conservation problem by exchanging KPPviscAz (may not
307       be the best fix)
308    o pkg/seaice
309     - check for inconsistent evp parameter/cpp-flag combination
310     - remove leftover errIO flat for obsolete name list error handling
311    o OpenAD
312     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
313    
314    checkpoint59a
315    o pkg/seaice: some parameter clarifications and a little bit of clean up
316    o pkg/thsice: rename run-time parameters:
317       himin       -> hIceMin
318       himin0      -> hThinIce
319       hihig       -> hThickIce
320       i0          -> i0swFrac
321       transCoef   -> bMeltCoef
322       frac_energy -> fracMelting
323      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
324       with default values (for now) that do not change the results.
325      remove old version of thsice vars advection in pkg/seaice.
326    o in FFIELDS.h:
327      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
328      - make pLoad & sIceLoad always available (but still only used if
329         ATMOSPHERIC_LOADING is #define).
330    o pkg/kpp: replaced _KPP_RL with _RL
331    o bug fixes for vertical diffusivity computations when both KPP and
332        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
333        are no longer updating the vertical diffusivity array
334        (passed as argument) but are (re-) setting those arrays.
335    o pkg/seaice: fix bug in evp solver, while doing that
336      - change (improve?) discretization of stress computations for both
337        cgrid-lsr and evp solver
338      - add a new routine to compute strain rates
339      - the above changes lab_sea results
340      - add no slip conditions for evp solver (off by default), lsr-version
341        may follow
342      - fix exchange for shear at Z-points (does not change lab_sea)
343      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
344        (to force the user to pick a time step since there is not "safe" way
345        of choosing it)
346      - add principal stress diagnostics
347      - rearrange fields for evp a little to avoid having to call a: too many
348        exchanges and b: exchanges for stress trensor components which we do
349        not have.
350      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
351        of evp, complete rewrite for lsr case (latter is does not yet work
352        in all cases)
353    o pkg/kpp: add code to have mixing in shelf ice caverns
354      - add myThid to all kpp routines (long overdue)
355    
356    checkpoint59
357    o pkg/exf:
358      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
359        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
360      - move exf header files from lower_case.h to UPPER_CASE.h ;
361        add missing cvs Header & Name
362      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
363      - add namelist param. selectStressGridPosition, exf_monFreq
364      - retire many _CLIM routines, and remove data.exf_clim
365        + params moved to data.exf
366        + climsst, climsss now handled by exf_set_gen, i.e.
367          climss?period=0 refers to constant field,
368          climss?period=-12 to monthly forcing
369      - split up namelists in data.exf
370    o pkg/seaice:
371      - remove seaice_exch and seaice_exch_uv
372      - remove superfluous exchange of theta
373      - add myThid to seaice_budget_ocean/ice
374      - add new interface for atmospheric wind forcing (C-grid only)
375        + new routine
376        + two new field (taux, tauy for stress over ice)
377        + removed one global field (DAIRN) for C-grid case only
378    o pkg/thsise
379      - 2nd set of modifs for thsice adjoint in conjunction with exf
380    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
381    
382    checkpoint58y_post
383    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
384      vertical diffusivity, similar to that in MOM4; turned on using
385      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
386      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
387    o Added capability for 3D specification of background vertical diffusion
388      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
389      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
390      "data" file that contains the 3D vertical diffusivity coefficients.
391    o ice dynamics (pkg/seaice) with thsice thermodynamics:
392      - add code within pkg thsice to advect & diffuse sea-ice fields
393      similar to (and will replace) what has been added in  seaice_advdiff.F,
394      but: - conserving Mass, Heat & Salt.
395           - better when using non-linear advection scheme (not yet fully tested)
396           - can also be used in atmospheric set-up (for now, only the diffusion).
397    
398    checkpoint58x_post
399    o IO option for global-file compact format:
400      - add options when generating topology (utils/exch2/matlab-topology-generator)
401      - add I/O capability (pkg/mdsio).
402      - adapt utils/matlab/rdmds.m to read this format.
403      for now long-line format not yet supported by pkg/mdsio (& exch2).
404    o shelfice: add a few diagnostics
405    
406    checkpoint58w_post
407    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
408      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
409      (and replace horiVertRatio in NH code).
410      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
411                         and tutorial_plume_on_slope (sensitive to truncation)
412    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
413      directly to drive seaice model (C-grid only)
414    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
415     - reintroduce computation of wind from stress,
416     - compute tau (in exf_bulkformulae.F) from windstress averaged to
417       mass points to avoid tau = 0
418     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
419    o rdmnc.m: make it work with "global" files created with gluemnc
420    o rdmnc.m : some improvements in dealing with singleton dimension
421      (tested on all testreport mnc output files).
422    o genmake2: disable pkg/profiles if netcdf test fails.
423    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
424    o move call to cal_readparms up to make calendar parameters/variable available
425      to all packages
426    
427    checkpoint58v_post
428    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
429      useDynP_inEos_Zc tested.
430    o pkg/exf: changes to properly interpolate/mask/scale initial fields
431    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
432      and portions thereof.  See read_cs.txt for description and examples.
433    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
434      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
435      following the great-circle arc between those 2 points.
436    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
437      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
438    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
439     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
440     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
441     - still needs work (not working with some options ; efficiency to improve)
442       and serious testing.
443     - use this scheme for temperature & salinity in 2 advection test exp.:
444       advect_xy & advect_xz, respectively.
445    
446    checkpoint58u_post
447    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
448    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
449    o testreport: add option "-skipdir" to skip some test.
450    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
451      momentum calculation.
452    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
453    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
454      remove checkpoint.F and the_correction_step.F (no longer used);
455      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
456    o add option (linFSConserveTr) to correct for tracer source/sink due to
457      Linear Free surface
458    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
459    o pkg/thsice: fix reading mnc-pickups
460    
461    checkpoint58t_post
462    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
463    o pkg/mdsio:
464     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
465       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
466       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
467     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
468     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
469       either MDS_READ_FIELD or MDS_WRITE_FIELD )
470     - new S/R (to replace MDSWRITEMETA), which allows to write more
471       informations (variable names, time ...) to meta files.
472     - modify rdmds.m to give back the meta file content.
473    o pkg/diagnostics: change vertical interpolation to be safer, and more
474       flexible (define p-levels to interpolate to in data.diagnostics);
475      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
476       diagnostic pointer.
477    o pkg/seaice: more cleaning up of seaice_growth, added many comments
478    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
479    o fix multi-category seaice:
480     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
481       SEAICE_MULTICATEGORY
482     - fix short wave heat flux
483    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
484       and allow to use EVP solver. Change forward lab_sea: test both EVP
485       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
486    o Initial check-in of lab_sea adjoint
487      (very similar to natl_box_adjoint/code_seaice)
488      * used C-grid and EVP solver
489      * used KPP, GM/Redi
490      * uses inAdExact=.TRUE.
491      * gradient checks fail for both ADM and TLM
492        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
493        f.d. gradients actually seem more problematic than ADM, TLM gradients;
494        issue is related to forward mismatch between g77 an ifort
495    o pkg/seaice: overhaul of thermodynamics
496     - growth.F and groatb.F are replaced by new routine seaice_growth.F
497     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
498     - move a few global fields out of SEAICE.h into seaice_growth.F and
499       make them 2D (FICE/QNETO/ ...)
500     - remove FO (it is the same as QNETO)
501     - introduce a few local fields to avoid modifying external fields such
502       as atemp, etc.
503    
504    checkpoint58s_post
505    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
506      changed exf_set_gen.F so that
507        genperiod=0 means input file is one time-constant field and
508        genperiod=-12 means input file contains 12 monthly means
509    o CG2D: use pre-computed solver main-diagonal (stored in common block);
510      this affects truncation error ; generate new output file for exp. which
511      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
512        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
513        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
514        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
515        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
516        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
517    o start implementation of deep-atmosphere and anelastic formulation
518    o verification: remove 2nd copy of input files and use script "prepare_run"
519      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
520    o mom_common/vecinv/fluxform: fix a few initialisation isssues
521    o profiles: fix for multithreaded case
522    
523    o diagnostics: rename few diags:
524      s/'PRESSURE'/'RCENTER '/g
525      s/'TICE    '/'oceFreez'/g
526      s/'TAUX    '/'oceTAUX '/g
527      s/'TAUY    '/'oceTAUY '/g
528      s/'SWFLUX  '/'oceQsw  '/g
529      s/DIFx/DFxE/g
530      s/DIFy/DFyE/g
531      and add few ocean-forcing diagnostics:
532      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
533    o modifications to pkg/seaice/growth.F and budget.F, which change results of
534      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
535      as actual snow thickness.  It now refers everywhere to effective snow
536      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
537    
538    checkpoint58r_post
539    o modifications to pkg/seaice/growth.F, which change results of
540      lab_sea experiment: fixes pertain to melting snow over open water, to
541      masking EVAP under sea ice, and to using the correct AREA variable for
542      computations of EVAP, PRECIP, HSNOW, and GHEFF
543    o add ability to read bathy, salt, and theta using MNC (off by def)
544    o add flooding algorithm and advection of HSNOW for pkg/seaice;
545      both are turned off by default and do no change any results
546    o seaice advection with pkg/thsice: a step toward the use of non-linear
547      advection scheme, but #ifdef or commented out for now (requires more EXCH).
548    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
549      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
550      in natl_box (affects results @ truncation level: update output.txt)
551    o multi-threading and IO:
552      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
553      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
554        (needed to work with SingleCpuIO): tested in all verif. exp.
555    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
556      affects the results (but none of the verification test uses this scheme).
557    o Adding some pkg/diagnostics capability to pkg/seaice
558      (will certainly be subject to changes)
559    o ctrl: adding new control variables:
560      lwflux, lwdown, evap, snowprecip, apressure, runoff
561    
562    checkpoint58q_post
563    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
564      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
565      high_res_cube configuration by 4% on Columbia.
566    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
567      add (in global_with_exf/code) a version of EXF_INTERP_READ without
568      dynamical allocation (seems to work in multi-threaded).
569    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
570      single CPU io) so that TAF does not have to see EESUPPORT.h
571    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
572    
573    checkpoint58p_post
574    o obcs: stop if obcs is used with useCDscheme = .true.
575    o shelfice:
576     - fix a sign error so that no slip at shelfice interface works
577     - remove stop for combination non-hydrostatic code and shelfice. That does
578       not mean, that the results are correct, but at least they are numerically
579       stable
580    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
581    o added adjoint exch routined for all exch*3d* routines
582      and updated flow directives
583    
584    checkpoint58o_post
585    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
586      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
587    o change controling S/R for writing pickup file (new S/R do_write_pickup)
588      and clean-up reading/writing of pickup files.
589    o fix local version of read/write pickup (NH part) in rotating_tank/code
590    o simplify EXCH interface:
591     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
592     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
593    o added the regrid package
594    o shelfice:
595     - add a simple boundary layer scheme to reduce noise
596     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
597    
598    checkpoint58n_post
599    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
600       local variable (not in common block).
601    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
602      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
603      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
604        to work with SingleCpuIO.
605    o add "_d 0" to real constant of pkg/cfc subroutines ;
606       update exp. cfc_exemple & tutorial_cfc_offline output files.
607    o multi-threading and IO:
608      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
609        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
610      - barrier before and after reading.
611      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
612      - avoid using MDS_WRITELOCAL for LAND pkg output.
613      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
614        common-block variables ; Allows multi-threading with master-thread IO.
615    o change default MAX_NO_THREADS from 32 to 4 ;
616      and stop cleanly when MAX_NO_THREADS is too small.
617    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
618    
619    checkpoint58m_post
620    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
621       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
622    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
623       keep global_ocean.90x40x15 (for AD testing) with former secondary test
624       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
625    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
626        add MITgcm_tutorials (= code + all the tutorials)
627    o ecco, option to compute cost for total ssh (mean+anom)
628    o consistent with addition of ptracer and ssh in pkg/profiles
629    o profiles: adding ptracer and ssh
630    o testreport: change multi-test output-file name
631      (from output.txt.{name} to output.{name}.txt)
632    o profiles: now ok for mutli-tiles case
633    o seaice: add 4 parameters for different advection schemes for area,
634      (effective) seaice thickness, enthalphy, and snow height. Their default
635      is the standard parameter SEAICEadvScheme
636    o calc_gw:
637     - add cosFacU in zonal viscous flux (harmonic.visc.).
638     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
639       of tutorial_plume_on_slope.
640    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
641    o calc_gw: true flux-form, account for horizontal grid spacing.
642      update rotating_tank results, but not plume_on_slope (affected at
643      truncation level, 11 digits).
644    
645    checkpoint58l_post
646    o calc_gw:
647     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
648     - remove side-drag for now (need to fix it); update plume_on_slope results.
649     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
650    o commit code to make SST/SSS weights spatially variable
651      (based on either variable in-situ or variable initial T/S weights)
652    o pkg/ecco:
653      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
654        now based on horizontally varying weights wthetaLev, wsaltLev
655      * cost_averagesflags now returns year indices in addition to day, month
656      * sflux balance is performed on annual basis
657        (sflxumm, sfluxmm2, bal_sfluxmm)
658      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
659        including separate counting and multipliers
660    o pkg/rbcs
661      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
662    
663    checkpoint58k_post
664    o testreport:
665     - always build in dir. "build" (if not there, mkdir build instead of building
666       & running in input)
667     - run in dir run (if it exists), in build otherwise.
668     - call prepare_run (if input/prepare_run exists)
669     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
670    o pkg/exf modifications to interpolation and rotation routines for more
671       reasonable treatment of North Pole singularity: for tracers North Pole
672       value is set to northernmost zonal-mean value, for zonal velocity it is
673       set to zero, and for meridional velocity it is set to northernmost value.
674    o pkg/exf/exf_check_range.F
675     - add tile index to diagnostics and move stop statement to the very
676       end of the routine.
677    o pkg/diagnostics: (diagnostics_main_init.F)
678      define title of isomorphic variables according to the current config.
679    o pkg/thsice with pkg/seaice dynamics:
680    - fix domain of computation (interior only, required for exf) and do exchanges
681    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
682    o towards a standard way of dealing with multi-threading in MONITOR
683      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
684    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
685       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
686    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
687    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
688    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
689       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
690    o tracer advection:
691     - clean-up and simplify calc_common_factors.F
692     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
693       advection subroutine (but still not used within DST advection S/R)
694    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
695    
696    checkpoint58j_post
697    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
698      from file (collects calls previously in FORWARD_STEP)
699    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
700    o adjoint store dir. adjusted accordingly
701    o genmake2
702      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
703    
704    checkpoint58i_post
705    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
706      on wind stress (SEAICEstressFactor defaults to 1.)
707    o Total number of Timers is finite (<=40): comment out 2 non-essential one
708      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
709    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
710      on CS-grid: no longer loosing mass.
711    o exf & curvilinear-grid: no longer modify longitude xC & xG.
712    o pkg/ggl90: fix sloppy output and fix a bug
713    o pkg/seaice: added SEAICEuseEVPpickup parameter
714      - Set to false in order to start EVP solver with
715        non-EVP pickup files when using SEAICEuseEVP
716      - fix sign error in diffusion in seaice_calc_rhs
717    
718    checkpoint58h_post
719    * Modifications for bottom topography control
720      o replace hFacC by _hFacC at various places
721      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
722      o add non-self-adjoint cg2d_nsa
723      o update autodiff support routines
724      o re-initialise hfac after ctrl_depth_ini
725      o works for 5x5 box, doesnt work for global_ocean.90x40x15
726    * Adding verification for 5x5 box (4-layer) bottom topography control
727    
728    checkpoint58g_post
729    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
730       used for mean seasonal cycle, mean diurnal cycle); add an example
731       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
732    o pkg/ggl90:
733      - add parameter (minimum surface kinetic energy)
734      - fix bug (avoiding division by zero)
735    o couple pkg/thsice to pkg/seaice:
736      - modify advection in seaice to accomodate new scalar fields to be advected
737      - only muliDimAdection scheme work with seaice/thsice
738      - mapping of thsice-variables to seaice-variables, back and forth
739      - does not break the verification experiments, but does not give the
740        desired results either
741    o pkg/seaice
742      - make (default) second order advection a bit less confusing?
743    
744    checkpoint58f_post
745    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
746      to pkg/seaice):
747      - new routines thsice_map_exf and thsice_get_exf provide the interface
748      - add an additional formal parameter to thsice_solve4temp
749    o pkg/exf:
750      - add new fields wspeed, snowprecip (to be able to couple to thsice)
751      - correct Stefan-Boltzmann constant
752      - new parameter for longwave surface emittance
753      - separate some stuff from exf_bulkformulae into new routines  
754        exf_radiation, exf_wind
755      - add new parameters and constants: longwave emissivity for ocean, ice
756        and snow, evaporation parameters over ice
757      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
758        either wind from stress or stress from wind
759    o pkg/thSIce:
760    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
761    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
762       and THSICE_CALC_THICKN
763    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
764    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
765      to make debugging easier.
766    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
767    o pkg/bulk_force:
768      - clean-up comments and parameters ;
769      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
770    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
771      generate new output for test-experiment: aim.5l_cs.thSI
772    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
773      testreport accordingly
774    
775    checkpoint58e_post
776    o SEAICE_CGRID adjoint done
777    o R_STAR adjoint implemented.
778      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
779      * need to sort out init. of h0facc, etc.
780    o Make pkg/profile fully independent of ecco,cost, etc. stuff
781      to be able to use it in pure forward.
782    
783    checkpoint58d_post
784    o upgrade simple test-experiment to tutorial example:
785     step.1: duplicate the experiment and (step.2) will remove the old copy.
786      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
787      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
788      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
789      tutorial_global_oce_biogeo    <- copy of dic_example
790      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
791      tutorial_plume_on_slope       <- copy of plume_on_slope
792      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
793      tutorial_global_oce_optim     <- empty for now (David ?)
794      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
795     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
796    o correct a sign problem in cost_scat.F
797    o obcs and ptracers: fix boundary conditions for advections schemes
798      with larger stencil
799    o thsice adjoint: start
800    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
801      completeness
802    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
803      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
804    o ptracers adjoint:
805      * avoid extensive recomputatations
806      * fix missing re-init. of gptr (missed by TAF)
807    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
808      me to turn off the excessive output to STDOUT that this package produces
809    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
810      and add those terms in Vector-Invariant formulation.
811    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
812      if the control period (xx_hfluxperiod etc) is 0
813    o in profiles pkg, clean routines and fix details
814    o in ecco pkg, reading ssh data:
815      fix problem in case the model does not start at iter0=0
816    o fix mnc-pickup/restart for ptracers
817    o new package prifiles:
818      code to compute profile-based cost by Gael Forget
819      (modifs in ecco, ctrl, autodiff)
820    o Benign bug fix in initialization (spotted by M. Mazloff) of
821      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
822    
823    checkpoint58c_post
824    o adjoint: finish NLFS adjoint and provide reference output in
825      verification/global_ocean.90x40x15/results_ad_nlfs
826    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
827      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
828      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
829      with SEAICE_CGRID defined.
830    o move calendarDumps from "data" to "data.cal" and clean-up the code
831      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
832    o add useEXF & useCAL flags (for now, set in hard-coded way)
833    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
834      (were missing in NH mode, and wrong in quasihydrostatic mode).
835      waiting for Chris updated version of calc_gw to add those CALLs.
836    o fix bug in quasihydrostatic S/R ;
837      add a test for this option: global_ocean.90x40x15.qshyd
838    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
839      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
840    o add on/off flag useOffLine for package OFFLINE
841    o seaice:
842      - modify advection so that it works also on the C-grid
843      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
844        problem in multi-tile runs with C-grid
845      - add flags for clipping ice velocities and/or masking solver forcing
846      - fix drag (ocean on ice) formulation and a bug that caused noise in the
847        C-grid solver
848      - added a few comments to seaice_diffusion.F
849      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
850        are now exclusive)
851      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
852        required re-ordering the code a little:
853       + make DAIRN global variable (defined in SEAICE)
854       + move computation of the viscosities eta and zeta into a new separate
855         routine (because I need to recompute them in seaice_ocean_stress.F)
856    
857    checkpoint58b_post
858    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
859      update output.txt of exp. aim.5l_cs.thSI
860    o various mnc cleanups and improvements:
861      + shrink lookup tables by factor of ~4
862      + better error reporting when running out of lookup space
863      + able to handle longer path/file names (up to 500 chars)
864    o adjoint:
865      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
866      - TBD: "hidden" mom_vecinv recomp. in dynamics
867    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
868     (allow to differentiate between forcing components using new integer flags:
869      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
870     and add new flag to put Dissipation tendency out of Adams-Bashforth.
871    o ecco
872      - enable trend removal from SSH anomaly obs.
873    o adjoint
874      - a fix for PmEpR when #undef EXACT_CONSERV
875      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
876      - try to fix "hidden" recomp. in forward_step for NLFS
877        (NLFS seems broken sometimes after I checked it in)
878    o seaice:
879     - add c-grid version of the dynamic solver:
880       + three new routines that are the c-grid substitute lsr, dynsolver
881         and ostres
882       + put a few fields that were local to dynsolver into global common
883         blocks, so that I can move the computation of stresses etc into
884         seaice_lsr (saves coding but may break the adjoint).
885     - replace more hardwired parameters by runtime parameters
886     - add ice masks that mask the rhs of the implicit solvers where there
887       is no ice (commented out in seaice_dynsolver, because i am not sure
888       if this works properly), eventually this should replace the clipping
889       of ice velocities in seaice_dynsolver to +/-40cm/s.
890    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
891      include it only where its needed
892    o move balancing of fluxes before the call of external_forcing_surf
893    o seaice:
894      - correct units of turning angles (now they are really in degrees)
895      - move computation of GWATX/Y out of main routine into dynsolver
896      - initialize GWATX/Y in seaice_init
897    o Apply mask on Fresh-Water flux (needed for SSH forcing).
898      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
899    o seaice: add runtime flags for turning angles (default to zero)
900    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
901      and trend from exf forcing and ctrl control adjustments
902    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
903      (since checkpoint57x_post)
904    o change the default rotation period to 86164.s = the Earth rotation
905    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
906      and based on a reference stratification. Tested within hs94.cs-32x32x5.
907    o seaice advection: add code for choosing between the default (2nd order
908      central differences) and multiDim advection schemes provided by
909      pkg/generic_advdiff
910    o seaice:
911      - removed all references to SEAICE_GRID.h fields from
912        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
913        (cubed-sphere configuration will change a little)
914      - grid computations in seaice_init are obsolete now.
915      - cleaned up code a little so that is easier to read (hopefully).
916      - added new (better?) discretizations of default advection and diffusion
917        (turn on with SEAICEuseFluxForm)
918      - replace 1 in 3d global fields by kSurface in growth.F
919      
920    checkpoint58a_post
921    o seaice:
922      - bug fix in advect.F
923    o shelfice:
924      - separate shelfice load anomaly from pload (breaks with time
925        dependent forcing), => introduce constant field shelficeLoadAnomaly.
926        Its default is 0., but it may be computed more cleverly from (unknown)
927        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
928        done offline. A good approximation of the pressure load anomaly is
929        necessary to avoid large initial adjustment processes underneath
930        deep-reaching shelfice.
931      - small fix in ISOMIP shelfice_thermodynamics
932      - add more sophisticated thermodynamics of Hellmer (1989), this is
933        now the default
934      - give a few constants more intuitive names
935    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
936      if bulk formulae are used in long integration (especially EmPmR). Turn
937      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
938      if balancePrintMean, the imbalance that is substracted is printed to
939      STDOUT.
940    o fix bug (typo) in obcs_apply_eta.F
941    o add a new package shelfice which enables us to model the circulation
942      underneath shelf-ice with draughts of hundreds of meters.
943     - works
944     - to do: + include improved thermodynamics
945              + check whether kSurfC (from model/inc/SURFACE.h) can be used
946                instead of new field kTopC
947              + can we use topoFile, Ro_surf and existing code in ini_depth.F
948                instead of new field R_shelfIce and new code in ini_depth.F
949                and ini_mask_etc.F?
950              + adjust vertical mixing schemes?
951    o seaice pkg:
952     - add a cpp-flag to include a simple formula for a salinity dependent
953       freezing point of sea water at the surface
954     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
955       meridional stresses are now different (and hopefully correct)
956    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
957       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
958       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
959    o pkg/diagnostics: add options and parameters for regional-statistics
960       diagnostics ; define regions by reading a region-mask from a file
961       (might add other options later)
962    o pkg/bulk_force:
963     - add option and parameters to use AIM surface-flux formulae.
964     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
965       others forcing fields (defined in PARM05, parameter file "data") are loaded
966       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
967     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
968     - use the right EXCH call for uwind,vwind (to work on CS-grid).
969     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
970       and parameters (note: calcWindStress replaces .NOT.readwindstress).
971     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
972    
973    checkpoint58
974    o add "--embed-source" option to genmake2 which, when the supporting
975      tools can be compiled (as determined by genmake2) will turn on the
976      embed_files package which then embeds the entire MITgcm source code
977      (*.[fFhc] + Makefile) used for the build within the executable
978      - requested by CNH but off by default
979      - adds a paltry <9MB to the mitgcmuv executable in most cases
980      - only writes the output when useEMBEDSRC in eedata is true
981    o clean up 3-dim. relaxation codes:
982      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
983      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
984      * Thanks to Tom Haine for testing!
985    
986    checkpoint57z_post
987    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
988      affects output (@ truncation level) of exp. plume_on_slope ; updated.
989    o fix the pickup behavior for obcs in combination with ptracers
990    o fix a bug in ptracers_external_fields_load
991    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
992      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
993    o transfered surface NH pressure to eta field (if exactConserv).
994    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
995         and update lab_sea output.txt file.
996    o completing 3-dim. relaxation code: additional term
997         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
998      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
999      * At compile time, in "EXF_OPTIONS.h" set
1000          #define  ALLOW_CLIMTEMP_RELAXATION
1001          #define  ALLOW_CLIMSALT_RELAXATION
1002      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1003          tauThetaClimRelax3Dim = 15552000.0,
1004          tauSaltClimRelax3Dim  = 15552000.0,
1005      * 3 cases:
1006          1) Use a constant-in-time 3-dim. field
1007          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1008          3) Real-time relax. to time-evolving prescribed field
1009    o Adding Laplacian-type smoothness constraint on
1010      initial and boundary (forcing) controls (ic, bc)
1011      * enable at compile-time via
1012        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1013      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1014      * Absolute scale somewhat unclear so far
1015      * no area weighting was included since no other cost term does so far
1016    
1017    checkpoint57y_post
1018    First step for a NLFS adjoint
1019    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1020    o new init. routines for calc_r_star, calc_surf_dr
1021    o still need to deal with ini_masks_etc
1022    o testreport seemed happy
1023    checkpoint57y_pre
1024    
1025    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1026    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1027    o add new offset feature to offline pkg (plus minor cleanup)
1028    o cfc fixes for final year of integration
1029    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1030      be in GCHEM_OPTIONS).
1031    
1032    checkpoint57x_post
1033    o fix testreport Pb in multiple test experiment.
1034    o cleanup our namelist syntax in verification:
1035      - make it more F95 standards compliant (some work still needed)
1036      - allows the vast majority of our tests to work with gfortran
1037    o Non-Hydrostatic:
1038     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1039     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1040    o Allow to apply AB on T,S rather than on AB(gT,gS):
1041     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1042     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1043       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1044     - need a "clever" read_pickup to restart from the other AB formulation
1045    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1046    o remove some unused variables (reduces number of compiler warnings)
1047    o adjoint
1048      * Disable useVariableViscosity for adjoint for time being
1049        (there are a number of extensive recomputations)
1050      * Initialize certain variables needed for adjoint
1051    
1052    checkpoint57w_post
1053    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1054                 fix the singleCpuIO RS version of MDSWRITEFIELD
1055       and add a WARNING if using globalFiles=T with multi-processors.
1056    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1057      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1058    o tracer advection scheme:
1059      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1060       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1061       was not very convenient).
1062      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1063       (further tests needed for the implicit DST & Flux-Limiter schemes).
1064    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1065      and sRef for convenience, handy, when you want to initialize
1066      ptracers in a large domain with a constant non-zero value. Also,
1067      untangle ptracers_init.F a little.
1068    
1069    checkpoint57v_post
1070    o change dome exp. to use variable viscosity in side-drag terms.
1071    o remove all the files from the cfc_offline test since they are now
1072      incorporated into tutorial_cfc_offline which has been producing
1073      identical results for a few days of testing
1074    o add new parameter: sideDragFactor to enable half-slip-side BC
1075      and change side-drag S/R to use viscosity from mom_calc_visc
1076      (can switch back by setting sideDragFactor=0.); affects results at
1077      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1078       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1079    o vorticity & strain are now computed without masking, to account for
1080      no-slip-side BC in variable viscosity calculation ; mask is applied
1081      anyway later on, before computing advection/coriolis terms.
1082    o modify exp4 to test new obcs support for reading from external files
1083      and for passive tracers
1084    o fix behavior of ptracers_monitor when monitor output is written to a
1085      netcdf-file; still not independent of monitor.F (writes in the same
1086      file).
1087    o change default value of tRef (put a uniform, meaningful value for ocean
1088      & atmos) and initialize sRef (was missing, as Martin mentioned).
1089    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1090      to be proportional to enstrophy dissipation length.  Thus,
1091       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1092      This is now consistent with Smagorinsky and with the manual.
1093    
1094    checkpoint57u_post
1095    o OBCS and PTRACERS: add open boundary support for passive tracers
1096      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1097        OB-values from file; this is not different from the way theta and salinity
1098        are treated
1099      - however, Orlanski-radiation conditions are not supported, and the model
1100        will stop if you use pTracers and Orlanski at the same time.
1101      - beefed up the rountine obcs_external_fields_load: now only those open
1102        boundary values are overwritten with values from files for which there
1103        are really files, otherwise the OB-fields remain untouched. This makes
1104        it possible to use different OBs at different ends of the domain (as
1105        with EXF)
1106    o reduce number of exch calls in shap_filt (s2).
1107    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1108      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1109    
1110    checkpoint57t_post
1111    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1112    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1113      same truncation, independent of the face number: affects affects several
1114      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1115    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1116      note that biharmonic viscosity + no-slip was not tested in any experiment.
1117    o fix bug in non-linear free-surf side-drag ; generate new output for
1118      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1119    o make mnc honor the writeBinaryPrec flag for most kinds of output
1120    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1121    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1122      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1123    o add brackets in multi-terms sum to get same truncation, independent of
1124      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1125      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1126    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1127      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1128      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1129      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1130      Suggested values of viscosity parameters found in mom_calc_visc.
1131      Many new viscosity diagnostics available.
1132    
1133    checkpoint57s_post
1134    o Add clearing-house for viscosity calculations, mom_calc_visc and
1135      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1136      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1137      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1138      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1139      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1140      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1141      ViscAhStrain and viscAhTension are now retired.
1142    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1143    o In response to JMC's bug report, genmake2 now ignores any soft-links
1144      that it finds in the *current* directory when searching for files.
1145      Soft-links found in any other source directories will still work as
1146      they did before.
1147    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1148      a C routine to unlimit the stack size
1149    o mnc-ify pkg/aim snapshot vars
1150    o mnc-ify pkg/land as requested by Daniel
1151    o various changes to mnc including:
1152      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1153      - output can now be grouped so that all files within a group
1154          change the ITER portion of their names in lock-step together
1155      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1156          and works with both EXCH1 and EXCH2 (but needs more testing)
1157      - writing works for all verification test cases w/ g77 on Linux
1158    
1159    checkpoint57r_post
1160    o make MNC variable initialization happen earlier
1161    o add diagnostics for (almost) each term of the momentum Eq.
1162    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1163    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1164    o remove MINIMAL_TAVE_OUTPUT option ;
1165      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1166    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1167      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1168    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1169    o add time-dependent SST, SSS control
1170    o cost terms in ecco/ modularized (new cost_generic.F)
1171    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1172    o new infrastructure for seaice model vs. obs misfits in seaice/
1173      * driver from the_main_loop.F is seaice_cost_driver.F
1174      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1175      * gradient check in Exp. 6a of natl_box_adjoint/
1176    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1177      (see README file)
1178    
1179    checkpoint57q_post
1180    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1181    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1182      - bug was reported by Jean-Michel and Ian Fenty
1183    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1184      update exp. cpl_aim+ocn output.
1185    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1186      Needed for high-res. runs with large global files
1187      to be able to limit tapelev size
1188    o Changed some tests for adjoint:
1189      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1190      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1191      * global_ocean.90x40x15/ back to default 3-level checkpointing
1192    o Modifications to enable scripted COMMON to MODULE conversion
1193      * verification/OpenAD/code/ has necessary scripts and description;
1194      * converts, compiles and runs successfully;
1195    
1196    checkpoint57p_post
1197    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1198    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1199      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1200    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1201    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1202      (was already the case for dissipation with mom_vecinv,
1203       and also the case for grad.PhiHyd when staggered-timeStep)
1204      This will allow to put dissipation out-off the AB time-stepping.
1205     Unfortunately, affects truncation error. Update output of exp. that "fails"
1206      (cg2d matching number) and leave the others for later: front_relax(10),
1207      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1208      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1209    
1210    checkpoint57o_post
1211    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1212      (2) its ready to be documented during the 20050801 DocFest
1213    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1214      for ideal_2D_oce and lab_sea on linux_ia32_g77
1215    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1216      in global1x1_tot/code_seaice_adj to access indices 32, 33
1217      (worth another tag)
1218    
1219    checkpoint57n_post
1220    o adding precip control xx_precip 32
1221    o adding swflux control xx_swflux 33
1222    o Replacing 10 forcing penalty cost routines by 1 generic.
1223    o Implementing partitioning in time-mean and variable adjustment
1224      for atmos. state.
1225    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1226    o in natl_box_adjoint:
1227      * updated exp 1 to 10
1228        (but does not have time-mean vs. variable split results yet)
1229    o updated global1x1/*_seaice_adj/
1230      to incorporate latest changes
1231    o enable useSingleCpuIO for mdsio vector routines
1232      (applies in particular to tapelev I/O)
1233    o removed inefficient K-loop in all active_file*control*.F
1234    
1235    checkpoint57m_post
1236    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1237      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1238    o pkg/exch2: filling of face-corner halo regions is optional
1239      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1240    
1241    checkpoint57l_post
1242     tag before updating tutorials (pre-release-2)
1243    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1244       for output and interpolation of input fields onto model grid)
1245    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1246       Affects results of exp. rotating_tank ; update output.txt.
1247    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1248          and taking the square quantity and/or using a fraction-weight field.
1249    o fix aim_diagnostics_init.F mate numbers.
1250    o add mnc output capability to diagnostics/diagstat and update
1251      our cvsignore files for the ACSII output generated
1252    
1253    checkpoint57k_post
1254    o lab_sea now uses diagnostics package and provides a suite of
1255      new EXF diagnostics output.
1256    
1257    checkpoint57j_post
1258    o exf
1259      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1260        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1261        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1262      * extended diagnostics output
1263        - now includes all EXF variables
1264        - hs, hl moved to common block
1265        - separate S/R for diagnostics, called after ctrl vector is added
1266        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1267        - EXFqnet contains true Qnet (i.e. includes qsw)
1268      * updated verif. lab_sea, global_with_exf
1269      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1270        to ensure that diagnostics sees a true EXFqnet
1271    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1272    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1273      several times with different frequencies.
1274    o mnc-ify the thsice package as requested by Daniel Enderton
1275      - the monitor--MNC output needs work
1276      - many attributes need to be added (most are currently blank)
1277    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1278      - many attributes need to be added (most are currently blank)
1279    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1280    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1281    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1282      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1283         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1284    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1285     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1286    
1287    checkpoint57i_post
1288    o Diagnostics package was changed: diagnostic allocation is now deactivated
1289      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1290    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1291      add 1rst Order upwind vertical Shear.
1292    o add a quick fix for A/B checkpointing in OFFLINE mode
1293    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1294      end-run around the C/Fortran linking horror in eesup/src/timers.F
1295    o added pkg/runclock: allows user to terminate run based on wall clock
1296    o added non-hydrostatic scaling parameter: nh_am2
1297    o pkg/my82: futile attempt to make results compiler-independent by adding
1298      some "_d 0", etc. no effect.
1299    o for mnc output, fill the 'T' coordinate var with myTime and create a
1300      separate 'iter' variable for iteration count
1301    o pkg/diagnostics:
1302      add new capability: output of Global/Regional & per-level statistics ;
1303      tested against monitor output (including land & thSIce) on various exp.
1304    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1305    
1306    checkpoint57h_done
1307      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1308      data.diagnostics, data.gchem, data.ptracers) is done.
1309    
1310    o pkg/diagnostics: prepare for Global/Regional statistics.
1311      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1312    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1313      and rename it: DIFFERENT_MULTIPLE
1314    
1315    checkpoint57h_post
1316    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1317    o pkg/diagnostics: change output frequency, now in seconds (instead
1318      of Nb of iterations). This requires to change data.diagnostics.
1319    checkpoint57h_pre
1320    
1321    o in mnc, let the user create the output dir if both mnc_outdir_date
1322      and mnc_outdir_num are false
1323    o add fflags() to pkg/diagnostics which allows one to specify, on a
1324      per-file basis, the file precision [default behavior is unchanged]
1325    o added diagnostics to pkg/kpp, including computation of mixed layer
1326      depth based on a temperature/density criterion
1327    o updated verification/natl_box to test the new pkg/kpp diagnostics
1328    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1329    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1330    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1331      not mnc -- this mistake was found by JMC and is now corrected
1332    
1333    checkpoint57g_post
1334    o add Adams-Bashforth 3rd Order time stepping:
1335      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1336      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1337    checkpoint57g_pre
1338    
1339    o make lambda[Theta,Salt]ClimRelax spatially varying
1340      (default remains spatially uniform constant based on tau)
1341    o added new control variables
1342      * init. uVel, vVel, etanN
1343      * lambda[Theta,Salt]ClimRelax
1344    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1345      (suggested by G. Forget)
1346    
1347    checkpoint57f_post
1348    o add parameter "baseTime" = model base time = time at iteration zero
1349      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1350      account for baseTime shift
1351    o move Coriolis arrays from PARAMS.h to GRID.h
1352    checkpoint57f_pre
1353    
1354    o mnc-ifying the seaice package
1355    o introduced an alternative length scale calculation for use in the limiting
1356      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1357    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1358    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1359      as well as grad(vort3).  Made it compatible with both approximate form
1360      for the cubed sphere and full form of these gradients.  Added flag
1361      useFullLeith to select between approximate and full form.  
1362    o add "d0" in getcon.F to reduce differences between compilers/platforms
1363      update output.txt of exp. fizhi-gridalt-hs
1364    o change port_rand funtion to allow to set the seed.
1365    o fix obscure MNC bug involving conversion between reals and integers
1366      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1367        new version is now more standards-compliant
1368    o adjoint-related modifications
1369      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1370      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1371      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1372    
1373    checkpoint57e_post
1374    o Adding eddy stress controls a la Ferreira et al.
1375    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1376    
1377    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1378      update output.txt of exp. fizhi-gridalt-hs
1379    o add more "Z" dimensions and associated coordinate vars to MNC
1380    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1381    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1382      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1383      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1384      months and years.  Requires pkg/cal.
1385    o diagnostics: add pickup functionality
1386      - off by default for backwards compatibility
1387      - current version only uses MDSIO -- MNC will be added
1388    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1389    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1390    
1391    checkpoint57d_post
1392    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1393    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1394      output from the diagnostics package
1395    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1396    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1397      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1398    o add coordinate variables to the MNC output from the diagnostics package
1399    o change MNC-flags default value: true when useMNC=TRUE
1400    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1401      the ability (off by default) to read the grid information using MNC
1402    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1403    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1404    o do snap-shot diagnostics at the middle of the time-interval (instead of
1405      at the end).
1406    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1407      new test for AIM with thSIce + slab-ocean
1408    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1409    o move state variable diagnostics to the beginning of the time step ;
1410      (note: still needs some work specially for snap-shot diagnostics)
1411      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1412    
1413    checkpoint57c_post
1414    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1415    o generate new output.txt files on faulks with g77 & the new -ieee option
1416    checkpoint57c_pre
1417    
1418    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1419      update output.txt of exp. global_ocean.90x40x15
1420    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1421      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1422    o add saltFlux(+File) forcing capability with periodicExternalForcing
1423    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1424    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1425    o improvements for the MNC output from DIAGNOSTICS:
1426      - correct handling of the unlimitied dimension
1427      - all dims now have associated coordinate variables
1428      - variables located at U, V, and Corner ("Z") points are now written
1429        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1430        *all* data points are output
1431    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1432    o added pkg/seaice/seaice_monitor.F
1433    o mdsio_readfield.F can now read files visible only to master MPI process.
1434    o pkg/seaice: some test code for ice-modified ocean stress
1435    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1436      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1437      spurious negative numbers for precipitation and humidity.  Will cause
1438      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1439    o pkg/ctrl/
1440      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1441        May be enabled via doPackDiag
1442      *  introduce z-scaling of
1443         + gradient (doZscalePack) and
1444         + control (doZscaleUnpack)
1445    o pkg/mdsio/
1446      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1447      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1448    
1449    checkpoint57b_post
1450    o simplify options in diagnostics_fill arguments (remove weird combinations)
1451    o fix MNC coordinate variables so that they now contain per-face index
1452      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1453      general, EXCH2 grids are only aligned to a "local" coordinate system
1454    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1455    o Implement instantaneous output within pkg diagnostics:
1456      setting a negative frequency in data.diagnostics produces
1457     "snap-shot" output (as opposed to time-average if freq > 0)
1458    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1459      NOTE: change ptracer diagnostics name: use 2 characters to work with
1460            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1461    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1462      becomes the coordinate variable for the 'T' dimension
1463    o add CF-style coordinate variables to MNC
1464      - just a first cut:  numbers are meaningless on the cubesphere and
1465        missing along the T axis but otherwise it works!
1466    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1467    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1468    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1469      this is based directly on what the model compute, so that the content of
1470      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1471    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1472    o clean up build options files for SunOS, in particular
1473      - remove -traditional from xmakedepend
1474      - change -xarch=v9 to -xarch=native for f77
1475      - restore use of make (not gmake)
1476      - add CC=gcc if using g77
1477    o changes per discussion of AM, JMC, & EH3 today:
1478      - move redundant "grid" variables out of "state" -- in preparation of
1479        creating proper CF-style coordinate variables and in recognition
1480        that any/all grid variables can be easily copied (eg. w/NCO) from
1481        the grid files into any of the other NetCDF files
1482      - *always* output grid variables with MDSIO (this will eventually be
1483        changed)
1484      - output MNC grid file if useMNC is true
1485    o every instance of _END_MASTER() has been found and replaced with
1486      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1487      preprocessors
1488    o re-arrange diagnostics pkg initialisation:
1489     - allow each package to extend the available diagnostics list
1490     - add some checking and fix small problems (multi-threaded, ...)
1491     - new S/R diagnostics_fill (replace fill_diagnostics):
1492       look through the short list of active diag. (instead of the long list)
1493       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1494    
1495    checkpoint57a_post
1496    o this set of changes restores TAMC compatibility
1497      tested for global_ocean.90x40x15 adjoint on trough
1498      (what a pain)
1499    
1500    checkpoint57a_pre
1501    o some modifs in tools/build_options for sunos
1502    o call ctrl_pack for ctrl at end for optimcycle=0
1503    
1504    checkpoint57
1505    o add horizontal bi-harmonic viscosity for vertical velocity
1506      - new parameter viscA4W (defaults to viscA4)
1507      - affects only non-hydrostatic code
1508      - to be done: no-slip lateral boundary conditions
1509    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1510    o implement Implicit Vertical advection for pTracers
1511    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1512      (implemented also for implicit vertical diffusion & advection)
1513    o OBCS: extend application of tracer open boundary conditions
1514      to a strip beyond the boundary of width Olx/Oly
1515    o add call monitor to TAF set of required calls (flow directives)
1516      and include in natl_box_adjoint
1517    o untangle a few ifdefs related to cost, ctrl, autodiff
1518      untangel a few ALLOW_ECCO_OPTIMIZATION
1519    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1520      (theta2, salt2 in ecco_cost_weights)
1521    
1522    checkpoint56c_post
1523    o OBCS as control variables
1524      - update ctrl_ad_diff.list, obcs_ad_diff.list
1525      - remove balance of obcs controls from default
1526      - fix index bug nobcs in ctrl_init
1527      - fix dummy fields filen in ctrl_pack
1528      - add dummy weights for obcs
1529    o lsopt: comment out fort.94 output
1530    o optim:
1531      - remove unnecessary header files
1532      - adjusted namelists
1533      - add xerbla.F to Makefile
1534    o exf:
1535      - multiple modifications of exf_check_range
1536      - unit change in exf_init_runoff from [m/year] to [m/s]
1537    o mdsio:
1538      - i/o-vector change debugLevel from debLevA to debLevB
1539    
1540    checkpoint56b_post
1541    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1542      is called from DO_THE_MODEL_IO
1543      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1544      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1545      - clean up PTRACERS_WRITE_TIMEAVE a little
1546    o add another verification experiment that tests both the cfc-pkg and
1547      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1548      reactive tendencies treated inline with regular timestepping
1549    o testreport previously did a lousy job of comparing small numbers, so
1550      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1551      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1552      testreport.
1553    o ptracers_monitor: bug fix for MPI
1554    
1555    checkpoint56a_post
1556    o GCHEM: finish reorganizating the package
1557      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1558        (introduces another 3D-array for each passive tracer, but only if
1559        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1560        gchemTendency is not needed because the timestep is done separately)
1561      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1562      - GCHEM is now---more or less cleanly---separate from PTRACERS
1563      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1564        so clear to me how that should be done in a general way.
1565    o CFC: improve formatting of output in CFC_ATMOS
1566    o PTRACERS:
1567      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1568        that ALL experiments with ptracers enable can be checked. This makes
1569        GCHEM_MONITOR obsolete.
1570      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1571        monitorFreq
1572      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1573    o add PTRACERS (PTR0[1-5]) to testreport output
1574    o exf_check_range:
1575      * default changed to .TRUE.
1576      * will check values for niter0 if debLevA, every timestep if debLevB
1577      * STOP in exf_check_range if 'out of range'
1578      * range chosen generous to allow for potential extema
1579      TBD: a version with stricter range
1580           permitted range would be runtime parameters
1581    o GMredi:
1582      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1583      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1584      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1585    o GCHEM:
1586      - move call to GCHEM_FORCING_SEP, so that it is now called before
1587        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1588      - introduced a useGCHEM runtime flag and applied it everywhere.
1589      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1590        this flag is now only visible within GCHEM-pkg routines.
1591      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1592        be replaced by a 3D array that is computed before thermodynamics; for
1593        this, the tracer ID iTracer had to be included into the parameter list
1594        of ptracers_forcing
1595      - set up forward_step to call gchem_forcing, that will replace
1596        gchem_forcing_int in ptracers_forcing
1597      - cleaning up
1598    o small cleaning of exch2: remove files that are also in eesupp/src
1599    
1600    checkpoint56
1601    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1602    o mnc: cleanup "full" files--fixes out-of-memory problem
1603    o ECCO-GODAE
1604      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1605      * fully merged and updated from SIO code
1606        windstress sign change affects
1607        - exf_inscal_[u/v]stress
1608        - sign of xx_tau[u/v] adjustments
1609        - signs in cost_scat
1610      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1611      * natl_box_adjoint updated and compressed
1612      * 2-level checkpoint switch added
1613        (tested in EXP. 1 of natl_box_adjoint)
1614      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1615    o SVD
1616      * first complete, non-hacked version for SVD calculations
1617      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1618        performed via direct access files admtlm_vector.it????
1619        (via ctrl_[un]pack)
1620      * optimcycle is used for ARPACK iteration counter
1621        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1622      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1623        and add linear transforms where necessary
1624      * controls are initial/final SST, SSS (can be extended; need to check
1625        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1626    o mdsio: filename info to both stderr, stdout
1627    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1628      from sign change
1629    
1630    checkpoint55j_post
1631    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1632      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1633    o add consistent build directories and .cvsignore files to verification
1634    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1635    o make all subroutines 30 or less characters in length for certain older
1636      compilers to work (a thorough search only turns up two routines in
1637      pkg/ptracers)
1638    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1639      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1640    
1641    checkpoint55i_post
1642    o change arrays for total vertical diffusivity (2.D if explicit,
1643      3.D if implicit) ; each ptracer uses its own background value.
1644    o added mnc/NetCDF output capability to ocn_compon_interf
1645      - added bits to verification/cpl_aim+ocn so that it can run on
1646        ITRDA and other clusters without the mpirun "-wd" option
1647    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1648      configuration
1649    o give MNC the ability to create additional files rather than
1650      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1651      - the default is just less than 2GB which is a practical limit
1652        on many systems
1653    o Compute the non-local term using either KPP vertical diffusivity (=default)
1654       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1655    
1656    checkpoint55h_post
1657    o add verification test "vermix"
1658    o remove all the *_ioinc flags and replace with the single global
1659      outputTypesInclusive flag
1660    o allow to set a vertical profile of vertical diffusivity for T & S
1661    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1662    o useMNC moved from data.mnc to data.pkg
1663    
1664    checkpoint55g_post
1665    o Renaming carbon AD experiments to comply with testreport conventions
1666    o Updating adjoint of Held-Suarez hs94.1x64x5
1667    o Fixing directives for non-ECCO forward_step, after ECCO directives
1668      have been fixed to avoid recomp. of do_oceanic_phys
1669      Works well for global_ocean.90x40x15,
1670      but recomp. issue remains for carbon
1671    o Updating adjoint output for natl_box_adjoint after
1672      pkg/ecco has been modified (see taga c55d_post)
1673    
1674    checkpoint55f_post
1675    o rename to timeave_init_fixed
1676    
1677    checkpoint55e_post
1678    o some delicate re-shuffle of store directives to avoid one
1679      extra call of do_oceanic_physics
1680      affects ecco_the_main_loop.F, do_oceanic_physics.F
1681      checkpoint_lev1_directives.h
1682    o NB: this may break global_ocean adjoint temporarily,
1683      but it is clear how to fix it. Will do later, need this now.
1684    
1685    checkpoint55d_post
1686    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1687    o ecco_cost_weights is modified to 1x1 runs
1688    o modifs to allow observations to be read in as
1689      single file or yearly files
1690    o enable to read exf forcing fields as either
1691      single file or yearly files (flag useExfYearlyFields)
1692    checkpoint55d_pre
1693    
1694    o switch between 2-level and 3-level checkpointing
1695    o add ability of MNC to write local and "partial" (eg. 2D slices where
1696      the full 3D field is never actually stored) arrays to NetCDF files
1697      with the correct (that is, the complete multi-dimensional) set of
1698      array indicies
1699      - used in mom_vecinv() to write the diagFreq output
1700      - tested (demonstrated) in verification/aim.5l_cs
1701    o further mnc-ification
1702      - add verification/lab_sea to the list with mnc setups
1703      - fix undefined mnc v-names in cd_code
1704      - add kpp to mnc output (both snapshot and timeave)
1705    o non-hydrostatic code
1706      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1707        in calc_gw.F
1708      - defaults to viscAh
1709      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1710        friction or Leith) in non-hydrostatic mode, as long as there is
1711        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1712    o pkg/cost
1713      extend simple cost functions to treat time mean quantities
1714      (T,U,V) via cost_accumulate_state from cost_tile
1715    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1716        be 2 times larger than the minimum size the advection scheme requires.
1717        now get a perfect conservation of salt in advect_cs test-exp (updated)
1718    o GGL90 (Gaspar's TKE mixed layer)
1719      - add horizontal diffusion of TKE, requires exchanges in
1720        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1721        default. In OPA there is no horizontal diffusion of TKE but the
1722        mixing coefficients are computed from a horizontal average of TKE of
1723        6 points or so. I think that diffusion has a little more physical
1724        justification.
1725      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1726        was in vain)
1727      - mask tke-variable in ggl90_init
1728    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1729    o fix biharmonic diffusion on CS-grid.
1730    o more obcs stuff
1731      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1732        for reading boundary values. This routine is called from
1733        obcs_prescribe_read
1734      - updated obcs_check
1735      - changed sponge layer relaxation parameter units for days to seconds
1736      - turned off sponge layer by default
1737      - changed argument list of OBCS_CALC to myTime+deltaTclock
1738      - fixed about 35 bugs in obcs_external_fields_load
1739    
1740    checkpoint55c_post
1741    o obcs stuff
1742      - new runtime flags useOBCSprescribe, useOBCSbalance
1743      - re-arranged obcs_calc
1744      - moved exf_getobcs to obcs_prescibe_read
1745        obcs_prescibe_read is called after ORLANSKI stuff
1746        and independent of it (executable can contain all).
1747      - updated obcs_check
1748      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1749        These may be necessary only if tangential velocities are
1750        prescribed at OB, not sure, needs testing.
1751    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1752      which simplifies the calls and passes the ifc check-bounds test
1753    
1754    checkpoint55b_post
1755    o add a 2D scalar, Z location, exchange_2 routine.
1756    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1757      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1758      affects advect_cs results (for the wrong reason): update output.txt
1759    o use a more standard discretization for biharmonic viscosity ;
1760     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1761      affects results of dome set-up: update output.txt
1762    o fix gad_advection.F (CubedSphere part), back to version 1.23
1763    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1764    
1765    checkpoint55a_post
1766    o merged code to
1767      * prescribe/read time-dependent open boundaries
1768        (works in conjunction with exf, cal)
1769      * sponge layer code for open boundaries
1770      * each boundary N/S/E/W now has its own CPP option
1771        (healthy for the adjoint)
1772    
1773    checkpoint55
1774    o up-to-date adjoint of previous breaks
1775      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1776      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1777      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1778      - carbon: * remove tr1-related adjoint verification
1779                * add ptracer as control variable
1780    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1781      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1782    
1783    checkpoint54f_post
1784    o in verification/carbin/ remove experiment related to
1785      ALLOW_PASSIVE_TRACER (array tr1 etc)
1786      code_ad/ input_ad/ results_ad
1787    
1788    o add two new packages
1789      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1790        + subject to optimization (memory)
1791      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1792        + subject to reordering (many GOTOs in the original code)
1793        + so far opps is called for every (i,j) point, and then operates in
1794          the vertical; one may want to reorder the scheme in order operate in
1795          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1796          fields)
1797    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1798      - all verification tests compile and run with linux_ia32_g77
1799      - defaults are compatible with current input files--nothing
1800        should change if you were not previously using MNC
1801      - MNC output has been added in numerous places (eg. timeave)
1802        but there are still a few writes not yet do-able with MNC
1803        (this is in progress)
1804      - flags now allow for either/or/both use of MDSIO and MNC and
1805        documentation will soon follow
1806      - numerous small formatting cleanups for ProTeX
1807    o add version info (via BUILD_INFO.h) to MNC and stdout
1808    
1809    checkpoint54e_post
1810    o add two new packages
1811      - pp81 (Packanowski and Philander, 1981), Richardson number and
1812        stratification dependent mixing
1813      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1814      - these scheme operate in a similar manner as KPP (without ghat, of
1815        course), however there is only one diffusivity that is used for both
1816        temperature and salinity (and passive tracers)ç
1817    o add offline package
1818    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1819      provided by Stephanie Dutkiewicz
1820    o genmake2: add ability to search for C compilers and cleanup test output
1821      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1822    
1823    checkpoint54d_post
1824    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1825    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1826      leading to additional shift by 5 days each year of integration
1827       (i.e. leading to considerable offset over the years)
1828    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1829    o start with no AB and no initial filtering (staggerTimeStep):
1830      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1831    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1832      (external loading & cpl import/export stay in forward_step.F)
1833    o update coupling interface to work with new staggerTimeStep
1834    o change MDSIO ptracers_pickup.
1835    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1836    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1837    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1838    
1839    checkpoint54c_post
1840    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1841      this affects (truncation error) output.txt of test-exp:
1842       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1843    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1844    o change Qnet to always be the net heat flux, (+upward).
1845      affects (truncation error) output of natl_box exp.: updated
1846    o define the max number of passive tracers in PTRACERS_SIZE.h
1847    o start to test mnc routinely in exp0
1848    o add sea-ice loading (sIceLoad) as a new forcing field.
1849    
1850    checkpoint54b_post
1851    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1852       impressive on Altix and Opteron systems)
1853    o diagnostics can now write NetCDF files through the mnc package
1854    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1855    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1856    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1857      affects (truncation error) output of lab_sea & natl_box exp.: updated
1858    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1859    
1860    checkpoint54a_post
1861    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1862    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1863    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1864    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1865      + internal_wave (shift in writing cg2d_ini_res)
1866    checkpoint54a_pre
1867    
1868    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1869      - modified verification/lab_sea and natl_box_adjoint accordingly
1870    
1871    checkpoint54
1872    checkpoint53g_post
1873    o prepare splitting of thermodynamics: store convect.counter in common block
1874    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1875      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1876    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1877    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1878    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1879    o restore adjointability
1880    
1881    checkpoint53f_post
1882    o modifications that affect AIM experiment results (update output.txt):
1883      - no advection of S at top interface Nr (pkg/generic_advdiff)
1884      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1885    o AIM pkg:
1886      - include stability function into surf.Flux derivative relative to Tsurf
1887      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1888    
1889    checkpoint53e_post
1890    o merged cylindrical coord configuration
1891    o added rotating_tank experiment
1892    checkpoint53e_pre
1893    
1894    checkpoint53d_post
1895    o faulks upgraded: re-generate output.txt that have changed:
1896       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1897    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1898    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1899    o added Sadourny discretization of Coriolis
1900      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1901      - re-enabled use of omega3 (useAbsVorticity)
1902    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1903      vector-invariant equations
1904      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1905    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1906      hopefully without new bugs
1907      - still to do: biharmonic friction for non-hydrostatic w
1908    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1909    o regenerated output for global_ocean_ebm (using -ieee)
1910    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1911      of mom_common/
1912      - simple re-arrangement of instructions within computing loop
1913    checkpoint53d_pre
1914    
1915    checkpoint53c_post
1916    o new version of coupler for AIM+thSIce and Ocean models
1917     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1918     - land: change Evaporation of snow
1919     - aim with thSIce: fix bug in snow-precip.
1920    o changes to calc_gw.F
1921     - bug fix for w^2 term near the bottom boundary
1922     - (hopefully) improve the lateral slip boundary condtions for use with
1923        partial/looped cells
1924      - because the bug fix changes two verification experiments anyway (exp5
1925        and plume on slope), change the lateral boundary condition from half slip
1926        to the value of no_slip_sides
1927    o ebm package wasnt quite up to the parallel task. Fixed that.
1928    o Adjoint of EBM package + verification
1929      * TLM OK
1930      * ADM not sufficient accuracy yet (needs further testing)
1931    
1932    checkpoint53b_post
1933    o Commiting new energy balance model to repository
1934      * package is pkg/ebm
1935      * verif. is verification/global_ocean_ebm
1936      * references are in ebm_driver.F
1937    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1938    C        Global thermohaline circulation. Part I:
1939    C        Sensitivity to atmospheric moisture transport.
1940    C        J. Climate 12(1), 71-82
1941    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1942    C        Global thermohaline circulation. Part II:
1943    C        Sensitivity with interactive transport.
1944    C        J. Climate 12(1), 83-91
1945    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1946    C        Destabilization of the thermohaline circulation
1947    C        by atmospheric eddy transports.
1948    C        J. Climate 7(12), 1870-1882
1949    o Will need long integration testing.
1950    checkpoint53b_pre
1951    
1952    o created pkg/mom_common in preparation for variable viscosity code
1953    o renamed and split ini_mnc_io
1954    o pkg/land: only liquid water can diffuse or run-off
1955    o AIM using land: soil wetness availability account for snow
1956    o added printMapIncludesZeros to EEPARMS namelist
1957    
1958    checkpoint53a_post
1959    o restore TAMC compatiility for exf_constants.h
1960      (no usage of _d in .h)
1961    o Additional storing in KPP in an attempt to fix
1962      TAMC problem with adjoint of KPP code.
1963      (no success...)
1964      Identical code works fine with TAF.
1965    o Fixed verification/natl_box_adjoint experiments.
1966      Initial conditions for Experiments 4 and 5 are now
1967      set to "SEAICE_initialHEFF=0", which is more reasonable,
1968      and hence gives results closer to that of Experiment 2.
1969      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1970    
1971    checkpoint53
1972    o stable checkpoint with up to date adjoint
1973      TLM tests only run for 1st grdchk at the moment. Its unclear if
1974      this is a code problem or a problem with resetting code for g_
1975      variables that is being autogenerated wrong.
1976      Otherwise:
1977       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1978       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1979         are both still in chaos following their security messes.
1980    
1981    checkpoint52n_post
1982    o various build (mostly genmake2) changes including:
1983      - ability to build/run more easily within Cygwin and MacOS X
1984      - more complicated Makefiles with a stronger dependence on Gnu Make
1985    o pkg/seaice modifications
1986      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1987        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1988        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1989      - changed proxy for geostrophic velocity and updated
1990        verification/lab_sea/results/* accordingly
1991      - removed ADI dynamic solver from pkg/seaice
1992      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1993        they caused a segmentation fault under certain circumstances
1994      - removed unused field WATR
1995    o bug fix in exf-package:
1996      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1997         now reflect that.
1998    o small fixes in the cal-package:
1999      - set reference date to first of January for the 'model'-calendar
2000      - failing of cal_CheckDate in cal_FullDate now actually results in a
2001        warning
2002    o small modifications in exf-package to increase flexibility:
2003      - change climtempfreeze from a constant to a runtime parameter that
2004        is specified in data.exf_clim (default = -1.9)
2005      - introduce runtime parameter windstressmax (default = 2.0) that is
2006        specified in data.exf
2007    o fix in pkg/thsice:
2008      - update Evap (Tsf changes) to be consistent with Latent heat flux
2009      - maintain snow precipitation unchanged (even if Tsf >=0).
2010     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2011    
2012    checkpoint52m_post
2013    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2014      this does not change any of the results, because myIter=0 in swfrac always
2015      lead to jwtype=2 (the default anyway), but the call makes little sense
2016      as a default
2017    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2018    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2019      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2020    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2021    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2022    o extending useSingleCpuIO option to work with new exch2 I/O format
2023      - old-style, missing-tile I/O is still accessible by defining CPP
2024        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2025    o monitor package can write to NetCDF files and/or STDOUT
2026    o fix re-definition bug in MNC_GRID_INIT_ALL()
2027    o doc/api_reference added
2028      - a framework for building an API Reference Manual using all
2029        the "protex" comments embedded in the code
2030      - see pkg/generic_advdiff, pkg/mnc for examples
2031    o MNC:
2032      - make myThid the last argument for all subroutines
2033      - new default for the grid files: NO halos
2034      - add useMNC and other run-time flags
2035      - separate per-file-group handling of the unlimited dimension
2036      - early initialization of MNC w/ flags read at the eeboot stage
2037        and lookup tables set in initialize_fixed
2038      - write all MNC output to a freshly-created directory
2039    o thermodynamics sea-ice (thsice) is now tested with testreport.
2040    o test exp. advect_cs: use the standard cs32 grid ; update output.
2041    o Added functionality to grdchk:
2042      pick global i,j,k position (or nearest wet) where to perform check.
2043    
2044    checkpoint52l_post
2045    o new land formulation:
2046      a) use ground enthalpy as prognostic variable to ensure exact
2047         energy conservation.
2048      b) account for water temperature and for latent heat of freezing
2049         in all processes (rain, run-off, ground storage)
2050      c) compute surface and ground temperature implicitly.
2051    o aim_v23 modification for new land model:
2052      a) Treat separately land / ocean / sea-ice surface fluxes
2053         to allow implicit computation of land & sea-ice surface temp.
2054      b) add snow precipitation.
2055    checkpoint52l_pre
2056    
2057    o fix problem (when 1 tile is empty) in min/max monitor.
2058    o fix bug in timeAve (u,vZetatave in common block)
2059    o no restoring terms under ice for pkg/seaice
2060    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2061    o bug fix for pkg/seaice pickups
2062    o change MNC call locations and add coordinate attributes
2063    o mask vorticity at the corner ; affects global_ocean.cs output
2064    o fix ini_curvilinear_grid ; test CS experiments with mpi
2065    o aim.5l_cs: modify sea-ice fraction input file ; update output
2066    o exf: Adding simple range check routine for exf fields after read
2067    
2068    checkpoint52k_post
2069    o removed top-level directory "diags"
2070      - we migrated these functions to pkg/timeave a long time ago
2071    o fixed bug introduced in pkg/monitor
2072    o accuracy ctrlprec = 32 insuffient for gradient checks using
2073      averaged fields (I/O via cost_averages)
2074      -> use ctrl.h in active_file*.F to control I/O precision.
2075    o paramter list of CALL ADTHE_MAIN_LOOP
2076    o added initial do_the_model_io to ecco
2077    o set all ...Freq to zero after cost_final
2078      taveFreq, dumpFreq, pChkptFreq
2079    o MAIN and ECCO differentiability restored
2080    
2081    checkpoint52j_post
2082    o fix nchklev in tamc.h for global_ocean...
2083    o Bringing flow and store directives up-to-date
2084    o Really weird thing!
2085      call do_the_model_io from the_main_loop with parameters
2086      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2087      TAF places a faulty re-call of initialise_varia
2088      after cost_final call which should not be there!
2089    checkpoint52j_pre
2090    
2091    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2092      error messages
2093    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2094    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2095      debug output
2096    o modfied mdsio_writefield.F to handle non-global files under exch2
2097    o update AIM Cubed-Sphere exp (aim.5l_cs):
2098      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2099    o update AIM Equatorial Channel exp:
2100      use standard aim_v23 pkg and change the SST fields to be more realistic.
2101    o globalFile now works with exch2
2102    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2103      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2104    o limit timeave output for hi-res integrations
2105    
2106    checkpoint52i_post
2107    o removed CPP_EEOPTIONS.h from verification/*/code
2108    o updated the tiling for global_ocean_pressure
2109    checkpoint52i_pre
2110    
2111    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2112      the old pkg/aim).
2113    
2114    checkpoint52h_pre
2115    o shortened offending lines in exch2_send_rx?.template
2116    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2117    o genmake2: add build & execute test for NetCDF code
2118    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2119      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2120    o added useSingleCPUIO flag to monitor.F and mon_out.F
2121    o added temporary hack for sea-ice dynamics on the cube:
2122      metric terms are ignored and it is assumed that
2123      there is no sea-ice on cube faces 1, 2, 4, and 5.
2124    
2125    checkpoint52f_post
2126    o added exch2 cube routines to pkg/exch2
2127    o modified hs94.cs-32x32x5 to use it
2128    o added new grid files to hs94.cs-32x32x5
2129    checkpoint52f_pre
2130    
2131    checkpoint52e_post
2132    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2133      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2134    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2135      to work with implicit vertical advection and AB ;
2136    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2137    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2138     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2139    checkpoint52e_pre
2140    
2141    o fix bug in impldiff when Nr=1 or Nr=2.
2142    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2143    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2144    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2145      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2146    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2147    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2148    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2149    
2150    checkpoint52d_post
2151    o re-tiled many expts to allow comparison in multi-processor mode
2152      - updated output accordingly
2153      - changed hs94.128x64x5 to use intial T from file rather than use the
2154        random number generator
2155    o add infrastructure in model routines for fizhi and gridalt packages
2156    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2157    o changes to permit hi-res, cubed-sphere, configuration
2158      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2159      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2160      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2161        of surface winds for the cube
2162      (A verification experiment, based on global_ocean.cs32x15, but with
2163       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2164       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2165       complete with example surface forcing files and matlab scripts to look
2166       at the output and compare it with that of global_ocean.cs32x15.)
2167    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2168       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2169       to conform to the common rule.
2170    o check-in the first version of the coupler + interfaces for multi-components
2171       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2172       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2173       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2174       - ocean and atmos. share the same horizontal grid (no interpolation).
2175       - exchanges between component and coupler is done in forward_step
2176    o new verification experiment, cpl_aim+ocn:
2177       coupled ocean - AIM atmosphere on cs32 grid.
2178    
2179    checkpoint52d_pre
2180    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2181    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2182    
2183    checkpoint52c_post
2184    o Fixing OPTIONS files for use of exf:
2185      - ALLOW_ECCO not needed
2186      - ECCO_CPPOPTIONS.h should not be included from
2187        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2188        as has been the case in the past
2189      - All cal/exf related options are currently set in
2190        single header file. Should remain so until we
2191        agree on a consistent new policy.
2192    o Removed all CPP options for cal package.
2193      cal has no more CPP options.
2194    o modified STOREs in GAD_ADVECTION
2195    o corrected key comp. for passkey
2196    
2197    checkpoint52b_post
2198    o new version: "thsice" of thermodynamic sea-ice pkg:
2199     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2200     - modify fluxes but do not change theta directly;
2201     - light cleaning of bulk_force pkg (still needed with thsice).
2202     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2203       + output_thsice.txt to test thsice & bulk_force pkgs.
2204    o put back grid & coriolis monitor output.
2205    checkpoint52b_pre
2206    
2207    o call "do_the_model_io" at the beginning (=> dump initial state)
2208    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2209    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2210      (need info on NUMBER_OF_PTRACERS)
2211    o missing PTRACERS headers in some routines
2212    o default tamc.h in pkg/autodiff supposed to crash
2213      to ensure proper customization
2214    
2215    checkpoint52a_post
2216    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2217      - moved surfaceTendencyTice from pkg/seaice to main code
2218      - subroutine FREEZE_SURFACE now limits only surface temperature
2219        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2220        => new output.txt for global_ocean.cs32x15 & global_with_exf
2221      - keep the old version of FREEZE for backward compatibility;
2222        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2223      - corresponding modifs for TAF directives
2224    o added surface flux output variables to TIMEAVE_STATVARS
2225    o time-averaged output for pkg/ptracers
2226    o fix problem with ECCO-related divided adjoint
2227      snapshot file was missing some ad-variables,
2228      but no warning issued by TAF
2229    
2230    checkpoint52a_pre
2231    o some bug fixes for #undef REAL4_IS_SLOW
2232    
2233    checkpoint52 = ecco_c52_e35
2234    o after testing adjoints of checkpoint51u_post
2235    
2236    checkpoint51u_post
2237    o this is the post-merge tag of the ecco-branch
2238      (needs another clean checkout and re-testing)
2239    o various natl_box_adjoint configs and results
2240      but no input fields
2241    o obcs adjoint not yet merged!
2242    o adding ECCO global 1x1 and 2x2 degree configs
2243    o updated/extended some store directives for seaice
2244    o pkg/ecco now containes ecco-specific part of cost function
2245    o top level routines the_main_loop, forward_step
2246      supersede those in model/src/
2247      previous input data.cost now in data.ecco
2248      (new namelist ecco_cost_nml)
2249    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2250    
2251    checkpoint51t_post
2252    o this is the pre-merge tag of the ecco-branch
2253    
2254    checkpoint51s_post
2255    o cleanup: removed various obsolete #define-s
2256    o pkg/grdchk
2257      - renamed 'ph-grd 3' to 'grad-res'
2258      - merged from ecco-branch
2259        (remaining bug fixes for obcs gradient checks)
2260      - additional high-precision output for testreport
2261        (grep for 'precision_grdchk_result')
2262    
2263    checkpoint51r_post
2264    o cleaned up or removed CPP_OPTIONS.h files
2265    o updated results for some of the tests to reflect the new
2266      optfiles (-ieee: -O0 instead of -O3)
2267    
2268    checkpoint51q_post
2269    o cd_code:
2270      - moved cd_scheme.F -> cd_code_scheme.F
2271      - separate read_checkpoint from cd_code_ini_vars.F
2272      - separated cd_code part from write_checkpoint
2273      - updated AD_SOURCE, generated .flow
2274      - added CD_CODE_VARS.h to the_main_loop
2275      - Moving cd_code specific store dir.s to pkg/cd_code
2276    o ctrl package totally restructured
2277      - pack/unpack now optional and decoupled from
2278        xx_/adxx_ I/O
2279      - ctrl_pack/unpack cleaned
2280        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2281      - confined inclusion of AD_CONFIG.h to where necessary.
2282    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2283    
2284    checkpoint51p_post
2285    o create initial cd_code package
2286      - WARNING: the initialization of fields within packages
2287        is broken because INI_FIELDS (where READ_CHECKPOINT is
2288        called) is called *before* PACKAGES_INIT_VARIABLES.
2289        This seems to be backwards since
2290        1) its important to initially zero the entire field including
2291           the "halo" region
2292        2) zeroing needs to be done *before* reading pickup info
2293           and the pickup call might or might not happen in any
2294           particular run
2295      - this needs an overhaul for R2
2296    o cleanup verification/*/code/GMREDI_OPTIONS.h
2297    o cleanup testreport
2298    
2299    checkpoint51o_post
2300    o bringing AD-related verif's up to date with genmake2
2301      - carbon/
2302      - global_ocean.90x40x15/
2303      - hs.94.1x64x5/
2304      - (front_relax/ )
2305    o (more) consistent directory structure for AD-related verif.'s
2306    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2307    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2308    o bug fix in find_alpha.F for MDJWF:
2309      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2310        change rho -> rho-rhoConst
2311      - replace call find_rho to find_rhonum
2312    o initialisation of rFlx extended to full array (required by TAF)
2313      and shifted to thermodynamics
2314    o removed PTRACERS.h in ptracers routine
2315    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2316    o Correcting initialisations for fVerU, fVerV.
2317    o helping TAF to recognize dependency on kUp for
2318      fVerU, fVerV
2319    o Replacing delZ by delR in pkg/ctrl/
2320    checkpoint51o_pre
2321    
2322    o undid all of cp51 pending some cleanups and discussion
2323    o added the [#include "AD_CONFIG.h"] statement to all files that need
2324       it for adjoint/tl #defines
2325     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2326     o removed tools/genmake since it no longer works
2327    
2328    checkpoint51n_post
2329    o modifications to make FREEZE flux visible to pkg/kpp
2330      - moved surfaceTendencyTice from pkg/seaice to main code
2331      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2332      - subroutine FREEZE now limits only surface temperature
2333        (this means new output.txt for global_ocean.90x40x15,
2334         global_ocean.cs32x15, and global_with_exf)
2335    o added surface flux output variables to TIMEAVE_STATVARS
2336    
2337    checkpoint51n_pre
2338    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2339    o added [#include "AD_CONFIG.h"] to all files that use the following
2340      defines:
2341      - ALLOW_ADJOINT_RUN
2342      - ALLOW_TANGENTLINEAR_RUN
2343      - ALLOW_ECCO_OPTIMIZATION
2344    
2345    checkpoint51m_post
2346    o incorporating changes to get TAMC/TAF working in genmake2
2347      - added new TAMC/TAF targets to the Makefile
2348      - various cleanups related to package handling
2349      - these changes should have no impact on the forward model
2350    
2351    checkpoint51l_post
2352    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2353     - faster algorithm for cal_addtime.F
2354     - higher precision arithmetic, where needed
2355     - pkg/exf *startdate variables changed from calendar date to
2356       model integration time
2357    
2358    checkpoint51l_pre
2359    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2360    o enable to apply restoring on S & T only in a latitude band.
2361    o update output (external_forcing_surf modif. change truncation errors)
2362       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2363    
2364    checkpoint51k_post
2365    o change default to: useNHMTerms=.FALSE.
2366     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2367       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2368     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2369        exp1, ideal_2D_oce
2370     - change data file of oceanic exp (leave the results unchanged for now)
2371       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2372    o set gravitySign automatically according to the vertical coordinate used
2373      (and change sign: back to "logical" value: +1 when R increases downward)
2374    o added an include barrier to the default CPP_OPTIONS.h and
2375      removed the #include "PACKAGES_CONFIG.h" from it
2376    o fix a bug in mom_fluxform (from chk51j_post)
2377    
2378    checkpoint51j_post
2379    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2380    o adjusted some flow directives (dynamics, thermodynamics)
2381    o added cubed-sphere case to test cost function
2382    o heckpoint_lev?_directives.h now include
2383      pkg-specific directives, whenever those are enabled.
2384    o Moving pkg-specific flow directives to corresponding pkg
2385      Moving pkg-specific differentiation list to corresponding pkg
2386      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2387      ---> conventions are
2388           - pkg_ad.flow
2389           - pkg_ad_diff.list
2390           - pkg_ad_check_lev?_dir.h
2391    
2392    checkpoint51i_post
2393    o merge of the branch-genmake2
2394      - knowingly breaks the older genmake
2395      - automatic generation of all ALLOW_${PKG_NAME} defines
2396      - new testreport supersedes older testscript
2397    o large number of package inclusion and header cleanups
2398    checkpoint51i_pre
2399    
2400    o new output for adjoin of global ocean vector invariant
2401    o fix for checkpoint of thermodynamic seaice and bulk_force
2402    o Steph gchem various cleanups
2403    
2404    checkpoint 51h_pre
2405    o fixed some single quotes
2406    o modify gchem pkg to be more versatile
2407    o modifications to clean up dic pkg
2408    o add pkg/cfc
2409    
2410    checkpoint51g_post
2411    o provide links for ARPACK and ADM*TLM
2412    o start removing verification/vero/
2413    o update AD-related stuff
2414      (in particular some IF-statements in model/src/ routines)
2415    o adding to verification/global_ocean.90x40x15/ adjoint of
2416      vector invariant setup
2417    
2418    checkpoint51f_post
2419    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2420    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2421      of tracer Green's fucntions for ocean inversion project.
2422    
2423    checkpoint51f_pre
2424    o Added on-the-fly spatial interpolation capability
2425        "USE_EXF_INTERPOLATION" to pkg/exf.
2426      - This is a temporary Cartesian-grid hack until
2427        the super-duper ESMF coupler becomes available.
2428      - See verification/global_with_exf/README for usage example.
2429      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2430        flags and modified pkg/seaice accordingly.
2431    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2432        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2433        non-local transport term.
2434    
2435    checkpoint51e_post
2436    o pkg/mom_vecinv:
2437      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2438      - add time-ave diagnostic of vorticity advection.
2439    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2440    o atmospheric geopotential: - include water vapor effect;
2441                                - use p^kappa in p* scaling.
2442    o land pkg: read initial state from files.
2443    o AIM : add stratospheric drag in the upper level
2444    
2445    checkpoint51d_post
2446    o change function ILNBLNK (=> last non-blank char.) to return zero
2447      (instead of the string length) when the string. char is empty
2448    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2449    o modif's to restore TAMC compatibility
2450      - avoid "_d" constructs in PARAMETER declarations
2451      - avoid interrupting lines by comment lines
2452    o Use cluster local disks for purely local I/O
2453      vs. globally visible disks needed for ctrl stuff
2454      (merged from ecco-branch)
2455      - new active_file_loc... and mdsio_..._loc routines
2456      - affected packages: autodiff, ctrl, grdchk, mdsio
2457    
2458    checkpoint51c_post
2459    o introducing integer flag debugLevel
2460      - debLevZero: suppress all output
2461      - debLevA: standard
2462      - debLevB: equivalent to current debugMode=.TRUE.
2463    o introducing pathname variable mdsioLocalDir for mdsio
2464      that can be specified at runtime
2465      (relevant for cluster I/O to local disk)
2466    `
2467    >>>checkpoint51b_post
2468    adjoint of ptracers
2469    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2470    o extended state in checkpoint_lev?, etc.
2471    o alternative ctrl/cost with tr1 or ptracer
2472    o new comlev1_bibj_ptracers
2473    o new ptracers.flow
2474    o made ptracers_forcing same as external_forcing_s
2475    o added verification for adjoint with ptracers
2476      - adm. grdchk fail so far
2477      - tlm. grdchk OK
2478      - checked tapelev/comlev recomputations: OK
2479    <<<checkpoint51b_pre
2480    
2481    checkpoint51a_post
2482    o added code for biogeochemistry package
2483      - new pkgs: dic, gchem
2484      - new subroutine in ptracers
2485    o modify code for biogeo packages
2486      - in model/src and pkg/ptracers
2487    
2488    checkpoint51
2489    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2490      - autodiff, ctrl, exf, grdchk, seaice
2491      kept separate packages
2492      - cost, ecco, obcs
2493    o updating verification/internal_wave, verification/lab_sea
2494      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2495    
2496    checkpoint50i_post
2497    o Preparing next differentiable checkpoint and sync
2498      of MAIN vs. ecco-branch
2499      - 1st step: this one is differentiable
2500      - 2nd step: next(! not this) checkpoint will have updated packages
2501                  from ecco-branch)
2502    
2503    checkpoint50h_post
2504    o new package "land": provide surface BC for AIM.
2505    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2506    o AIM: use true log-P extrapolation for near surface temp (= as in
2507        F.Molteni paper) ; update aim.5l_cs output.
2508    o New variable in PARM03 for more flexible pickups
2509    o somewhat cleaned package initialisation sequence for
2510      ctrl/ cost/ ecco/ in packages_... routines
2511    
2512    checkpoint50g_post
2513    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2514      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2515      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2516        made the default because of faster convergence than ADI
2517    
2518    checkpoint50f_post
2519    o exf totally restructured
2520      - replaced all exf_set_ routines by one generic exf_set_gen.F
2521        and made sure it's still differentiable
2522      - split exf_getffields.F into new exf_bulkformulae.F
2523      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2524      - updated adjoint/makefile and relevant verif. accordingly
2525    
2526    checkpoint50f_pre
2527     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2528          + change Evap over land. (update aim.5l_cs output)
2529     o added missing .cvsignores and made uniform across expts
2530     o changed configuration of tidal_basin_2d expt
2531     o added pkg/debug functions for tracing code in fatal crashes
2532     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2533     o new fn in pkg/monitor to stop model if solution grows too big
2534     o removed lots of single quotes from comments
2535    
2536    checkpoint50e_post
2537    o make KPP work with PTRACERS
2538     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2539       nearly a copy of kpp_transport_s
2540     - there is no analogue to SurfaceTendencyS, so I have to use
2541       gPtr(of the surface layer) instead
2542    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2543    checkpoint50e_pre
2544    
2545    checkpoint50d_post
2546    o change kpp output from multiple-record state files to single-record state
2547      files analogous to write_state.F
2548    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2549      analogous to the cg2d-related output.
2550    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2551      so that writing to internal file fn (with length 512) fails.
2552    checkpoint50d_pre
2553    
2554    checkpoint50c_post
2555    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2556    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2557    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2558    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2559    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2560    
2561    checkpoint50c_pre
2562    Merging from release1_p13:
2563    o bug fix for pkg/seaice dynamic solver
2564    o Added SEAICE_initialHEFF to pkg/seaice
2565    
2566    checkpoint50b_post
2567    o store u*,v* in gU,V instead of in guNm1,gvNm1
2568    o in order to put the momForcing out of the Adams-Bashforth:
2569      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2570      to timestep.F
2571    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2572    o re-generate output for highly sensitive test-exp:
2573       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2574    
2575    checkpoint50b_pre
2576    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2577    o corrected CPP option mismatch in exf_Bulk... functions for case
2578      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2579    
2580    checkpoint50a_post
2581    o Bug fix for merging between c50 and KPP.
2582      ikey was passed from thermodynamics to kpp_calc via
2583      common block rather than being recomputed in kpp_calc,
2584      in contradiction with new key itdkey.
2585      New key ikppkey created, and tamc.h headers updated.
2586    
2587    checkpoint50
2588    - 2nd step of merge with ecco-branch:
2589      merge changes in ecco-branch back into main trunk
2590    - bug fix in find_alpha
2591    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2592    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2593    - merged some sliced AD support routines
2594    
2595    checkpoint49
2596    merged from ecco-branch:
2597    o exf:
2598      - Enable initialisation of forcing fields to constant
2599        (runtime) values.
2600      - in exf_getffields.F
2601        Reduce i-/j-loop to interior domain, discarding overlaps.
2602        That also fixes wrong TAF-key computations for key_1, key_2
2603        with bulf formulae.
2604      - exf_init.F modify #ifdef for exf_init_evap
2605      - exf_getffieldrec.F, ctrl_getrec.F
2606        The following INT-usages are not safe:
2607          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2608          fldcount = int(fldsecs/fldperiod) + 1
2609        and were modified.
2610    o autodiff: checkpoint_lev...
2611      - updated storing for bulk formulae (some arrays were missing)
2612      - added state for seaice package
2613      - synchronized with main branch
2614    o DIVA:
2615      Modif.s in
2616      - the_main_loop.F
2617      - the_model_main.F
2618      and added cost_final_restore.F cost_final_store.F
2619      o With these changes, it is possible to fully separate
2620        the first forward run to compute the cost function (mdthe_main_loop)
2621        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2622        into separate model executions.
2623        This enables better tuning of DIVA to given queue sizes.
2624      o Loss of cost function value in consecutive DIVA runs is
2625        fixed by storing to 'costfinal' file.
2626      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2627        beginning/end of adjoint integration is accounted for.
2628      The current changes apply to TAF-1.4.26.
2629      TAF has one remaining bug, requiring one manual change
2630      (see MITgcm manual).
2631    o cal: synchronized between MAIN and ecco-branch
2632    
2633    checkpoint48i_post
2634    o Changes to restore differentiability of code w.r.t. previous tag
2635      (mostly adding new routines to make list and replacing
2636      pressure by totPhiHyd).
2637    o Updated and merged grdchk package
2638      - has both ADM and TLM checks
2639      - works for single- and multi-proc.
2640      - output cleaned
2641      - worked successfully for parallel DIVA
2642    o genmake:
2643      - Adding -platform=SP4
2644      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2645    o Modif. for DIVA:
2646      ctrl_unpack should not be called in intermediate DIVA interval.
2647      (similar thing would apply for active files such as
2648      tbar, sbar, psbar, which should not be reinitialised;
2649      only relevant for ecco-branch)
2650    
2651    checkpoint48h_post
2652    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2653    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2654    o Added SEAICE_initialHEFF to pkg/seaice
2655    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2656    
2657    checkpoint48g_post
2658    --- EOS:
2659    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2660      store total Potential in totPhyHyd for diagnostics & EOS.
2661    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2662    --- Pressure/geopotential gradient:
2663    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2664    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2665      ( changes results of global_ocean_pressure )
2666    o NLFS + z-coord.: add eta*Rho' contribution.
2667    o accurate phiHyd when using interface-W at the middle between 2 centers
2668     ( changes results of ideal_2D_oce )
2669    o includes r* 2nd term in potential gradient.
2670    
2671    checkpoint48f_post
2672    Merging from release1_p12:
2673    o Modifications for using pkg/exf with pkg/seaice
2674      - improved description of the various forcing configurations
2675      - added basic radiation bulk formulae to pkg/exf
2676      - units/sign fix for evap computation in exf_getffields.F
2677      - updated verification/global_with_exf/results/output.txt
2678    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2679      (SBO) core products, including oceanic mass, center-of-mass,
2680      angular, and bottom pressure (see pkg/sbo/README.sbo).
2681    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2682      to avoid negative values in shallow regions.
2683      - updated verification/natl_box/results/output.txt
2684      - updated verification/lab_sea/results/output.txt
2685    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2686    o Added useSingleCpuIO option (see PARAMS.h).
2687    o Updated useSingleCpuIO option in mdsio_writefield.F to
2688      work with multi-field files, e.g., for single-file pickup.
2689    o pkg/seaice:
2690      - bug fix in growth.F: QNET for no shortwave case
2691      - added HeffFile for specifying initial sea-ice thickness
2692      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2693    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2694      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2695    o pkg/seaice:
2696      - adjoint-friendly modifications
2697      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2698    
2699    checkpoint48e_post
2700    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2701    o dynamics: change definition of computational domain & adapt mom_fluxform
2702      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2703    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2704        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2705        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2706        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2707        inverted_barometer solid-body.cs-32x32x1
2708      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2709    
2710    checkpoint48d_post
2711    o in preparation for r*:
2712     a) use pre-computed gradient of hydrostatic potential:
2713        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2714     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2715        => affects results of glob_oce_pressure (different truncation error)  
2716      update output.txt of ideal_2D_oce & global_ocean_pressure
2717    
2718    checkpoint48d_pre
2719    o in preparation for r*:
2720      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2721      pass the 2 comp. of the grad. as arguments to momentum S/R.
2722      but for the moment, only used if it does not change the results.
2723    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2724    
2725    checkpoint48c_post
2726    Modifications in treatment of initial flux forcing controls
2727    to avoid extra storing of flux fields.
2728    
2729    checkpoint48c_pre
2730    o Added tidal_basin_2d experiment (currently 1D!)
2731    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2732    
2733  checkpoint48b_post  checkpoint48b_post
2734  o r* coordinate added in #ifdef NONLIN_FRSURF block.  o r* coordinate added in #ifdef NONLIN_FRSURF block.
2735   (modification to pressure gradient not yet implemented)   (modification to pressure gradient not yet implemented)

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