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revision 1.29 by adcroft, Thu Jul 13 14:22:58 2000 UTC revision 1.907 by jmc, Fri Nov 9 15:42:54 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    checkpoint59j
8    o in pkgs: dic, obcs, offline, rbcs:
9      standard way to compute coeff. for time interpolation between 2 time reccords
10      which retains full precision (& make results less dependent on compiler).
11      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
12    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
13      packages instead of reading ice cover and wind speed separately
14    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
15     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
16      to allow to compile customized code before the update)
17    o cleaning-up:
18      - fix CPP instruction syntax in pkg/obcs
19      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
20        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
21      - fix some threads issue in IO parts.
22    o pkg/dic:
23      - add tons of "_d 0" (--> much better testreports !)
24       and then update outputs of tutorial_global_oce_biogeo
25    o pkg/mom_fluxform:
26      add a special version of momentum advection intended to conserve momentum
27      next to a bathymetry step or a coastline edge. (default = off = #undef)
28    o new read/write pickup version:
29      - for now, only implemented for main (mdsio) pickup file.
30      - write out only what is needed to restart; merge pickup_nh , pickup_ph
31        and main pickup together.
32      - read meta file; read only what is needed to restart; stop if a field
33        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
34        if it make sense (even if the restart is not perfect).
35      - if no meta file, assume that pickup to read corresponds exactly to
36        a pickup that would currently be written.
37      - read pickup written in the old format (until checkpoint59i) if it
38        recognizes an old meta file (no field-list).
39      - add a meta file in exp. which starts from a pickup: 2 cases:
40        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
41         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
42        b) a meta file describing the content of the associated pickup file
43         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
44    o pkg/mdsio & pkg/rw:
45      - new routine to read a meta file ; new set of routine to read
46        Multiple-fields file (with meta file).
47    o added open boundary conditions capability for seaice
48        HSNOW, HSALT, UICE, and VICE
49    
50    checkpoint59i
51    o adjoint:
52      * fix multiDimAdvection adjoint
53        (partial recomputation problem by TAF for fVerT(:,:,kDown)
54        and comlev1 size definition (maxpass vs. max. number of tracers)
55      * verification/global_ocean.90x45x15 adjoint now tests
56        NLFS and multiDimAdvection using DST3 (=30)
57      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
58    o pkg/kpp: add "_d 0" to real constant (if missing);
59      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
60      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
61    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
62      for internal parameters related to restart process (formerly from PARAMS.h)
63      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
64    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
65      as argument. (only atm2d & obcs write_pickup have not yet been updated)
66    o pkg/monitor:
67      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
68      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
69      - account for deep Atmosphere factor and density factor (anelastic)
70    o added open boundary conditions capability for seaice HEFF and AREA
71    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
72      thermodynamics
73      - requires a little reorganization, which affects the testreport results
74        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
75        so that now the conservative form is tested
76      - add a few comments
77    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
78    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
79    o add new diagnostics to seaice: advective, diffusive fluxes (only for
80      multidim-advection, for scheme 2 they are not filled) and transports,
81      thermodynamic growth rates
82    o change units of EmPmR (inside the code, + within coupling interface)
83      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
84      Affects results @ truncation level (cg2d match) and update output of
85       experiments: lab_sea(6), global_ocean.90x40x15(10),
86      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
87      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
88      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
89      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
90    
91    checkpoint59h
92    o pkg/exf:
93      - improve vectorization by moving if-statement out of loops in
94        exf_mapfields, exf_radiation
95      - exf_bulkformulae.F: introduce 2D fields and vectorize code
96    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
97    o testreport:
98      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
99        monitor & update offline_exf_seaice exp. output.
100      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
101    o pkg/seaice:
102      - bug fix in the evp solver: boundary conditions were affected be
103        masking of zMax/zMin (changes results)
104      - minor bug fix in boundary conditions in seaice_calc_strainrates
105        (changes results for no_slip)
106      - seaice_lsr.F: make interpolation of eta dependent on boundaries
107      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
108      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
109        stress formulation and no-slip boundary conditions
110    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
111      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
112    o pkg/seaice: a first HSALT time stepping equation has been checked in
113    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
114      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
115      without requiring DO-IF statements
116    o pkg/thsice:
117      use continuous power-law function for partition of energy between lateral
118      melting/freezing and thinning/thickening ; old code using step function
119      still available with #undef THSICE_FRACEN_POWERLAW
120      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
121    o testreport: change AD testing : check against results/output_adm.txt
122      using same scripts as for forward test.
123    
124    checkpoint59g
125    o adjoint testing: in preparation for changing testreport:
126      - output format: cost and grad written on separated lines
127      - ad output results in directory "results" (instead of "results_ad")
128    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
129    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
130    o pkg/ecco: allow user defined cost function contributions
131    o testreport:
132      Allow to choose (per experiment) the list of tested output variables
133       and the main variable (used to issue a pass/FAIL ) ;
134      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
135      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
136      Also modify printing of summary:
137       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
138       b) echo the list of tested variables in the individual summary.txt of
139          each experiment.
140    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
141      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
142      (but still depend on the tile decompostion of the domain).
143    o pkg/seaice: change a discretization detail to make the B-grid code
144      "more symmetric". This change is likely to remove all "ridges/leads" that
145      where quasi-aligned with the grid in B-grid solutions. It may also be
146      the solution to the stress coupling issues with the B-grid.
147    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
148      remove .cvsignore from input dir. (since testreport no longer run here).
149    o pkg/thsice:
150     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
151     - fix reshaping of sea-ice just after advection:
152       melt all the ice only if ice-volume is too small.
153     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
154       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
155     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
156    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
157      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
158    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
159      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
160      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
161      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
162      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
163      -> update output.txt
164    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
165     this affects truncation error: -> update output.txt of exp:
166      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
167      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
168    
169    checkpoint59f
170    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
171    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
172      a bounded range (in forward mode)
173    o pkg/ecco, ctrl, autodiff and mom_common:
174     internal parameter controls, completements of implementations
175    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
176    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
177      (not seem any difference in testing results).
178    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
179       at face corners.
180    o pkg/generic_advdiff:
181     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
182      loop range indices for computing vertical advection tendency
183      and do the calculation in the interior only (no overlap) ;
184      for now, only implemented for SOM advection (to save CPU time).
185     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
186    o exch2 adjoint
187      First set of changes:
188      - add exch2 hand-written adjoint templates
189      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
190        This will require cleanup in pkg/autodiff/*.F
191        (changed routines currently kept separate in verif. code/)
192      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
193        that used to hide exch2 or cubed-sphere specific code
194        (commented via 'cph-exch2')
195    o pkg/seaice
196      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
197    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
198       output of global_ocean.cs32x15.thsice .
199    
200    checkpoint59e
201    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
202      for B-grid vector (not yet tested) and C-grid vector (<- only used
203      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
204    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
205      (#ifdef ALLOW_SALT_PLUME)
206    o gather_2d/scatter_2d: removed halo regions
207    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
208      scheme and the corresponding test case (under front_relax dir). For now,
209      only available with Skew-flux form and not yet tested in realistic set-up.
210      adjoint: store directives updated, but gradient checks deteriorated,
211      so maybe GM/Redi adjoint is now broken.
212    o seaice adjoint
213      * add AREA, HEFF, HSNOW as control variable
214        (should not change lab_sea results)
215      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
216    o pkg/seaice:
217      * added computation of saltFlux in seaice_growth;
218        For time being, sea ice salinity is assumed constant
219        contribution of snow flooding to freshening of sea ice is neglected.
220        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
221        defaults to 0.0 in order to maintain backward compatibility.
222        Typical values for SEAICE_salinity are 4 to 10 g/kg.
223      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
224      * added SEAICE_availHeatFrac, which specifies fraction of surface level
225        heat content used to melt or grow ice
226      * commented out cap of HICE: it helps keep ice thinner
227      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
228      * applied OBCS T/S mask to HEFFM sea ice mask
229    
230    checkpoint59d
231    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
232     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
233     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
234    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
235     and change default value of parameter "GM_Small_Number";
236     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
237       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
238       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
239    o pkg/ecco: cost function when applying pkg/smooth to controls
240    o pkg/ctrl: add forcingPrecond run time parameter
241    o pkg/seaice:
242     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
243     - fix bug in metric terms of u-equation in LSR solver (implicit part),
244       changes verification/lab_sea
245     - rearrange implicit part of u-equation in LSR solver to make it easier to
246       read, understand, and debug. This causes changes at the truncation level.
247     - fix (serious) bug in the boundary conditions (sign error in the implicit
248       part) of the LSR solver. Changes all LSR results.
249     - fixed problem with HSNOW initialization to avoid thick snow when AREA
250       is initilized with small values - does not change lab_sea results.
251     - added HsnowFile initialization capability
252    o pkg/smooth: addition to model/src and pkg/ctrl so allow
253     initialization of pkg/smooth and application to control vector
254    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
255    o dependencies: pkg/profiles requires pkg/cal
256    o pkg/profiles:
257     - added option ALLOW_PROFILES_GENERICGRID
258         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
259         that interpolation information (grid points and coefficients) is provided
260         within the netcdf input files.
261         -> sample matlab scripts can be found in MITgcm_contrib/gael
262         that allow you to prepare netcdf input files.
263     - also modified: cleaner include statements, cleaner error print statements,
264       cleaner stops when error, and more tests of the netcdf input files consistency.
265    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
266    o pkg/seaice:
267     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
268       requires a new routine: seaice_diagnostics_fill.F
269     - make sure that seaice does not move if not forced (pressure replacement
270       method, Hibler and Ip, 1995), changes results
271     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
272     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
273       It is turned off by default (=-1.), because it changes the results.
274     - make it possible to read AREA from a file, too.
275    
276    checkpoint59c
277    o add S/R and diagnostics for oceanic mixed-layer depth
278    o move GMRedi call after all vertical mixing schemes (including KPP)
279    o pkg/thsice:
280     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
281      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
282    o pkg/obcs:
283     - bug fix for balance code
284    o pkg/seaice:
285      - allow values of SEAICE_elasticParm > 1
286      - add new parameter SEAICE_evpTauRelax as an alternative
287        to SEAICE_elasticParm
288      - make lsr boundary conditions free slip (by default), changes result
289      - add code for no slip boundary conditions for lsr
290      - set minimum of zeta to zero (and not 4e8) (changes results)
291      - add a cap on AREA after advecting AREA if seaice_growth is not called
292    o change calculation of Visbeck K:
293      - no longer depend on tapering scheme; instead, compute slope (limited
294        by GM_maxSlope). this is equivalent to what was comuted before with
295        clipping or linear tappering.
296      - fix vertical averaging (wrong by 1/2 level)
297      - leave the old version (but will not be maintained) within
298        #ifdef OLD_VISBECK_CALC / #endif
299      - update output of exp. ideal_2D_oce
300    o change error catch in calc_r_star to improve vectorization
301    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
302      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
303    o adjoint:
304      Re-organized adjoint checkpointing according to Matt Mazloff
305      (but with modifs/completions/cleanups)
306      Storing is now bundled into large arrays to optimized I/O
307      (and second step in cleanup of the_main_loop)
308    
309    checkpoint59b
310    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
311      - export/import (between ocean & coupler) fields needed for ocean DIC.
312    o pkg/seaice:
313      - get rid of three more exchanges seaice_calc_viscosities (required
314        different loop boundaries in seaice_lsr and seaice_ocean_stress)
315      - bug fix in seaice_ocean_stress (update of lab_sea required)
316      - reduce loop boundaries to necessary minimum also in seaice_evp
317      - go back to the old way of computing deltaC/Z as the adjoint likes that
318        better
319    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
320      passive tracer to an Age Tracer) + update output.txt
321    o pkg/exf:
322      - implement A-grid / C-grid selection for wind-stress input files.
323      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
324      for now, in exf_bulk_largeyeager04.F only :
325      - change implementation for case where windspeed + 2. components wind-stress
326        are read-in. AND use rhoConstFresh to convert evap.
327    o pkg/seaice:
328      - use correct EXCH_UV for wind-forcing (on A-grid).
329      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
330        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
331    o pkg/exf:
332      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
333      EXF_INTERPOLATION:
334      - merge global_with_exf/code version of exf_interp_read.F
335        to the main code ;
336      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
337        reading the file ; Important: This options needs to be defined to recover
338        previous code.
339        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
340      - no longer loose real*8 precision along the way when using exf_iprec=64.
341    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
342      - change discretisation of evp-solver in order to avoid another exchange
343        (changes lab_sea) and clean up a little
344      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
345        help the adjoint (this also changes the results slightly)
346      - add a few "_d 0" where they had been missing in seaice_evp.F
347      - cleaning up: remove unused seaice_calc_rhs.F
348    o pkg/exf: some cleaning-up:
349      - change various "constants" into runtime parameters
350      - cleaned-up Large&Yeager04 routine which should eventually
351        replace exf_bulkformulae.F (changed names of S/R and CPP)
352        and merged various ALLOW_ATM_WIND options
353     only used with thsice pkg (in thsice_get_exf.F):
354      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
355        which are used when useStabilityFct_overIce=TRUE (= the default)
356      - change default values of ice & snow emissivity and scale downward LW
357        by ice & snow emissivity.
358    o pkg/thsice:
359     fix few little problems, in thsice_calc_thickn.F:
360      - growth vertically (and not laterally) if iceFrac == iceMaskMax
361      - melt only laterally if hIce < hThinIce (as the comments say)
362      and in thsice_extend.F:
363      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
364      - start to form ice as soon as the minimum ice-volume is reachable.
365     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
366      and cpl_aim+ocn
367    o pkg/kpp
368     - move computation of surface related input fields to KPP into a new
369       subroutine kpp_forcing_surf.F
370     - remove wrong (within bi,bj loops) EXCH calls.
371     - little cleaning (add argument myThid in last position, cvs header ...)
372     - for now, fix conservation problem by exchanging KPPviscAz (may not
373       be the best fix)
374    o pkg/seaice
375     - check for inconsistent evp parameter/cpp-flag combination
376     - remove leftover errIO flat for obsolete name list error handling
377    o OpenAD
378     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
379    
380    checkpoint59a
381    o pkg/seaice: some parameter clarifications and a little bit of clean up
382    o pkg/thsice: rename run-time parameters:
383       himin       -> hIceMin
384       himin0      -> hThinIce
385       hihig       -> hThickIce
386       i0          -> i0swFrac
387       transCoef   -> bMeltCoef
388       frac_energy -> fracMelting
389      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
390       with default values (for now) that do not change the results.
391      remove old version of thsice vars advection in pkg/seaice.
392    o in FFIELDS.h:
393      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
394      - make pLoad & sIceLoad always available (but still only used if
395         ATMOSPHERIC_LOADING is #define).
396    o pkg/kpp: replaced _KPP_RL with _RL
397    o bug fixes for vertical diffusivity computations when both KPP and
398        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
399        are no longer updating the vertical diffusivity array
400        (passed as argument) but are (re-) setting those arrays.
401    o pkg/seaice: fix bug in evp solver, while doing that
402      - change (improve?) discretization of stress computations for both
403        cgrid-lsr and evp solver
404      - add a new routine to compute strain rates
405      - the above changes lab_sea results
406      - add no slip conditions for evp solver (off by default), lsr-version
407        may follow
408      - fix exchange for shear at Z-points (does not change lab_sea)
409      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
410        (to force the user to pick a time step since there is not "safe" way
411        of choosing it)
412      - add principal stress diagnostics
413      - rearrange fields for evp a little to avoid having to call a: too many
414        exchanges and b: exchanges for stress trensor components which we do
415        not have.
416      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
417        of evp, complete rewrite for lsr case (latter is does not yet work
418        in all cases)
419    o pkg/kpp: add code to have mixing in shelf ice caverns
420      - add myThid to all kpp routines (long overdue)
421    
422    checkpoint59
423    o pkg/exf:
424      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
425        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
426      - move exf header files from lower_case.h to UPPER_CASE.h ;
427        add missing cvs Header & Name
428      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
429      - add namelist param. selectStressGridPosition, exf_monFreq
430      - retire many _CLIM routines, and remove data.exf_clim
431        + params moved to data.exf
432        + climsst, climsss now handled by exf_set_gen, i.e.
433          climss?period=0 refers to constant field,
434          climss?period=-12 to monthly forcing
435      - split up namelists in data.exf
436    o pkg/seaice:
437      - remove seaice_exch and seaice_exch_uv
438      - remove superfluous exchange of theta
439      - add myThid to seaice_budget_ocean/ice
440      - add new interface for atmospheric wind forcing (C-grid only)
441        + new routine
442        + two new field (taux, tauy for stress over ice)
443        + removed one global field (DAIRN) for C-grid case only
444    o pkg/thsise
445      - 2nd set of modifs for thsice adjoint in conjunction with exf
446    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
447    
448    checkpoint58y_post
449    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
450      vertical diffusivity, similar to that in MOM4; turned on using
451      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
452      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
453    o Added capability for 3D specification of background vertical diffusion
454      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
455      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
456      "data" file that contains the 3D vertical diffusivity coefficients.
457    o ice dynamics (pkg/seaice) with thsice thermodynamics:
458      - add code within pkg thsice to advect & diffuse sea-ice fields
459      similar to (and will replace) what has been added in  seaice_advdiff.F,
460      but: - conserving Mass, Heat & Salt.
461           - better when using non-linear advection scheme (not yet fully tested)
462           - can also be used in atmospheric set-up (for now, only the diffusion).
463    
464    checkpoint58x_post
465    o IO option for global-file compact format:
466      - add options when generating topology (utils/exch2/matlab-topology-generator)
467      - add I/O capability (pkg/mdsio).
468      - adapt utils/matlab/rdmds.m to read this format.
469      for now long-line format not yet supported by pkg/mdsio (& exch2).
470    o shelfice: add a few diagnostics
471    
472    checkpoint58w_post
473    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
474      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
475      (and replace horiVertRatio in NH code).
476      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
477                         and tutorial_plume_on_slope (sensitive to truncation)
478    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
479      directly to drive seaice model (C-grid only)
480    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
481     - reintroduce computation of wind from stress,
482     - compute tau (in exf_bulkformulae.F) from windstress averaged to
483       mass points to avoid tau = 0
484     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
485    o rdmnc.m: make it work with "global" files created with gluemnc
486    o rdmnc.m : some improvements in dealing with singleton dimension
487      (tested on all testreport mnc output files).
488    o genmake2: disable pkg/profiles if netcdf test fails.
489    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
490    o move call to cal_readparms up to make calendar parameters/variable available
491      to all packages
492    
493    checkpoint58v_post
494    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
495      useDynP_inEos_Zc tested.
496    o pkg/exf: changes to properly interpolate/mask/scale initial fields
497    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
498      and portions thereof.  See read_cs.txt for description and examples.
499    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
500      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
501      following the great-circle arc between those 2 points.
502    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
503      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
504    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
505     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
506     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
507     - still needs work (not working with some options ; efficiency to improve)
508       and serious testing.
509     - use this scheme for temperature & salinity in 2 advection test exp.:
510       advect_xy & advect_xz, respectively.
511    
512    checkpoint58u_post
513    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
514    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
515    o testreport: add option "-skipdir" to skip some test.
516    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
517      momentum calculation.
518    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
519    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
520      remove checkpoint.F and the_correction_step.F (no longer used);
521      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
522    o add option (linFSConserveTr) to correct for tracer source/sink due to
523      Linear Free surface
524    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
525    o pkg/thsice: fix reading mnc-pickups
526    
527    checkpoint58t_post
528    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
529    o pkg/mdsio:
530     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
531       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
532       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
533     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
534     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
535       either MDS_READ_FIELD or MDS_WRITE_FIELD )
536     - new S/R (to replace MDSWRITEMETA), which allows to write more
537       informations (variable names, time ...) to meta files.
538     - modify rdmds.m to give back the meta file content.
539    o pkg/diagnostics: change vertical interpolation to be safer, and more
540       flexible (define p-levels to interpolate to in data.diagnostics);
541      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
542       diagnostic pointer.
543    o pkg/seaice: more cleaning up of seaice_growth, added many comments
544    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
545    o fix multi-category seaice:
546     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
547       SEAICE_MULTICATEGORY
548     - fix short wave heat flux
549    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
550       and allow to use EVP solver. Change forward lab_sea: test both EVP
551       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
552    o Initial check-in of lab_sea adjoint
553      (very similar to natl_box_adjoint/code_seaice)
554      * used C-grid and EVP solver
555      * used KPP, GM/Redi
556      * uses inAdExact=.TRUE.
557      * gradient checks fail for both ADM and TLM
558        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
559        f.d. gradients actually seem more problematic than ADM, TLM gradients;
560        issue is related to forward mismatch between g77 an ifort
561    o pkg/seaice: overhaul of thermodynamics
562     - growth.F and groatb.F are replaced by new routine seaice_growth.F
563     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
564     - move a few global fields out of SEAICE.h into seaice_growth.F and
565       make them 2D (FICE/QNETO/ ...)
566     - remove FO (it is the same as QNETO)
567     - introduce a few local fields to avoid modifying external fields such
568       as atemp, etc.
569    
570    checkpoint58s_post
571    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
572      changed exf_set_gen.F so that
573        genperiod=0 means input file is one time-constant field and
574        genperiod=-12 means input file contains 12 monthly means
575    o CG2D: use pre-computed solver main-diagonal (stored in common block);
576      this affects truncation error ; generate new output file for exp. which
577      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
578        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
579        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
580        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
581        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
582        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
583    o start implementation of deep-atmosphere and anelastic formulation
584    o verification: remove 2nd copy of input files and use script "prepare_run"
585      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
586    o mom_common/vecinv/fluxform: fix a few initialisation isssues
587    o profiles: fix for multithreaded case
588    
589    o diagnostics: rename few diags:
590      s/'PRESSURE'/'RCENTER '/g
591      s/'TICE    '/'oceFreez'/g
592      s/'TAUX    '/'oceTAUX '/g
593      s/'TAUY    '/'oceTAUY '/g
594      s/'SWFLUX  '/'oceQsw  '/g
595      s/DIFx/DFxE/g
596      s/DIFy/DFyE/g
597      and add few ocean-forcing diagnostics:
598      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
599    o modifications to pkg/seaice/growth.F and budget.F, which change results of
600      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
601      as actual snow thickness.  It now refers everywhere to effective snow
602      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
603    
604    checkpoint58r_post
605    o modifications to pkg/seaice/growth.F, which change results of
606      lab_sea experiment: fixes pertain to melting snow over open water, to
607      masking EVAP under sea ice, and to using the correct AREA variable for
608      computations of EVAP, PRECIP, HSNOW, and GHEFF
609    o add ability to read bathy, salt, and theta using MNC (off by def)
610    o add flooding algorithm and advection of HSNOW for pkg/seaice;
611      both are turned off by default and do no change any results
612    o seaice advection with pkg/thsice: a step toward the use of non-linear
613      advection scheme, but #ifdef or commented out for now (requires more EXCH).
614    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
615      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
616      in natl_box (affects results @ truncation level: update output.txt)
617    o multi-threading and IO:
618      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
619      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
620        (needed to work with SingleCpuIO): tested in all verif. exp.
621    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
622      affects the results (but none of the verification test uses this scheme).
623    o Adding some pkg/diagnostics capability to pkg/seaice
624      (will certainly be subject to changes)
625    o ctrl: adding new control variables:
626      lwflux, lwdown, evap, snowprecip, apressure, runoff
627    
628    checkpoint58q_post
629    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
630      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
631      high_res_cube configuration by 4% on Columbia.
632    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
633      add (in global_with_exf/code) a version of EXF_INTERP_READ without
634      dynamical allocation (seems to work in multi-threaded).
635    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
636      single CPU io) so that TAF does not have to see EESUPPORT.h
637    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
638    
639    checkpoint58p_post
640    o obcs: stop if obcs is used with useCDscheme = .true.
641    o shelfice:
642     - fix a sign error so that no slip at shelfice interface works
643     - remove stop for combination non-hydrostatic code and shelfice. That does
644       not mean, that the results are correct, but at least they are numerically
645       stable
646    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
647    o added adjoint exch routined for all exch*3d* routines
648      and updated flow directives
649    
650    checkpoint58o_post
651    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
652      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
653    o change controling S/R for writing pickup file (new S/R do_write_pickup)
654      and clean-up reading/writing of pickup files.
655    o fix local version of read/write pickup (NH part) in rotating_tank/code
656    o simplify EXCH interface:
657     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
658     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
659    o added the regrid package
660    o shelfice:
661     - add a simple boundary layer scheme to reduce noise
662     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
663    
664    checkpoint58n_post
665    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
666       local variable (not in common block).
667    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
668      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
669      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
670        to work with SingleCpuIO.
671    o add "_d 0" to real constant of pkg/cfc subroutines ;
672       update exp. cfc_exemple & tutorial_cfc_offline output files.
673    o multi-threading and IO:
674      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
675        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
676      - barrier before and after reading.
677      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
678      - avoid using MDS_WRITELOCAL for LAND pkg output.
679      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
680        common-block variables ; Allows multi-threading with master-thread IO.
681    o change default MAX_NO_THREADS from 32 to 4 ;
682      and stop cleanly when MAX_NO_THREADS is too small.
683    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
684    
685    checkpoint58m_post
686    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
687       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
688    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
689       keep global_ocean.90x40x15 (for AD testing) with former secondary test
690       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
691    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
692        add MITgcm_tutorials (= code + all the tutorials)
693    o ecco, option to compute cost for total ssh (mean+anom)
694    o consistent with addition of ptracer and ssh in pkg/profiles
695    o profiles: adding ptracer and ssh
696    o testreport: change multi-test output-file name
697      (from output.txt.{name} to output.{name}.txt)
698    o profiles: now ok for mutli-tiles case
699    o seaice: add 4 parameters for different advection schemes for area,
700      (effective) seaice thickness, enthalphy, and snow height. Their default
701      is the standard parameter SEAICEadvScheme
702    o calc_gw:
703     - add cosFacU in zonal viscous flux (harmonic.visc.).
704     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
705       of tutorial_plume_on_slope.
706    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
707    o calc_gw: true flux-form, account for horizontal grid spacing.
708      update rotating_tank results, but not plume_on_slope (affected at
709      truncation level, 11 digits).
710    
711    checkpoint58l_post
712    o calc_gw:
713     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
714     - remove side-drag for now (need to fix it); update plume_on_slope results.
715     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
716    o commit code to make SST/SSS weights spatially variable
717      (based on either variable in-situ or variable initial T/S weights)
718    o pkg/ecco:
719      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
720        now based on horizontally varying weights wthetaLev, wsaltLev
721      * cost_averagesflags now returns year indices in addition to day, month
722      * sflux balance is performed on annual basis
723        (sflxumm, sfluxmm2, bal_sfluxmm)
724      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
725        including separate counting and multipliers
726    o pkg/rbcs
727      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
728    
729    checkpoint58k_post
730    o testreport:
731     - always build in dir. "build" (if not there, mkdir build instead of building
732       & running in input)
733     - run in dir run (if it exists), in build otherwise.
734     - call prepare_run (if input/prepare_run exists)
735     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
736    o pkg/exf modifications to interpolation and rotation routines for more
737       reasonable treatment of North Pole singularity: for tracers North Pole
738       value is set to northernmost zonal-mean value, for zonal velocity it is
739       set to zero, and for meridional velocity it is set to northernmost value.
740    o pkg/exf/exf_check_range.F
741     - add tile index to diagnostics and move stop statement to the very
742       end of the routine.
743    o pkg/diagnostics: (diagnostics_main_init.F)
744      define title of isomorphic variables according to the current config.
745    o pkg/thsice with pkg/seaice dynamics:
746    - fix domain of computation (interior only, required for exf) and do exchanges
747    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
748    o towards a standard way of dealing with multi-threading in MONITOR
749      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
750    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
751       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
752    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
753    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
754    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
755       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
756    o tracer advection:
757     - clean-up and simplify calc_common_factors.F
758     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
759       advection subroutine (but still not used within DST advection S/R)
760    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
761    
762    checkpoint58j_post
763    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
764      from file (collects calls previously in FORWARD_STEP)
765    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
766    o adjoint store dir. adjusted accordingly
767    o genmake2
768      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
769    
770    checkpoint58i_post
771    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
772      on wind stress (SEAICEstressFactor defaults to 1.)
773    o Total number of Timers is finite (<=40): comment out 2 non-essential one
774      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
775    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
776      on CS-grid: no longer loosing mass.
777    o exf & curvilinear-grid: no longer modify longitude xC & xG.
778    o pkg/ggl90: fix sloppy output and fix a bug
779    o pkg/seaice: added SEAICEuseEVPpickup parameter
780      - Set to false in order to start EVP solver with
781        non-EVP pickup files when using SEAICEuseEVP
782      - fix sign error in diffusion in seaice_calc_rhs
783    
784    checkpoint58h_post
785    * Modifications for bottom topography control
786      o replace hFacC by _hFacC at various places
787      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
788      o add non-self-adjoint cg2d_nsa
789      o update autodiff support routines
790      o re-initialise hfac after ctrl_depth_ini
791      o works for 5x5 box, doesnt work for global_ocean.90x40x15
792    * Adding verification for 5x5 box (4-layer) bottom topography control
793    
794    checkpoint58g_post
795    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
796       used for mean seasonal cycle, mean diurnal cycle); add an example
797       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
798    o pkg/ggl90:
799      - add parameter (minimum surface kinetic energy)
800      - fix bug (avoiding division by zero)
801    o couple pkg/thsice to pkg/seaice:
802      - modify advection in seaice to accomodate new scalar fields to be advected
803      - only muliDimAdection scheme work with seaice/thsice
804      - mapping of thsice-variables to seaice-variables, back and forth
805      - does not break the verification experiments, but does not give the
806        desired results either
807    o pkg/seaice
808      - make (default) second order advection a bit less confusing?
809    
810    checkpoint58f_post
811    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
812      to pkg/seaice):
813      - new routines thsice_map_exf and thsice_get_exf provide the interface
814      - add an additional formal parameter to thsice_solve4temp
815    o pkg/exf:
816      - add new fields wspeed, snowprecip (to be able to couple to thsice)
817      - correct Stefan-Boltzmann constant
818      - new parameter for longwave surface emittance
819      - separate some stuff from exf_bulkformulae into new routines  
820        exf_radiation, exf_wind
821      - add new parameters and constants: longwave emissivity for ocean, ice
822        and snow, evaporation parameters over ice
823      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
824        either wind from stress or stress from wind
825    o pkg/thSIce:
826    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
827    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
828       and THSICE_CALC_THICKN
829    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
830    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
831      to make debugging easier.
832    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
833    o pkg/bulk_force:
834      - clean-up comments and parameters ;
835      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
836    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
837      generate new output for test-experiment: aim.5l_cs.thSI
838    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
839      testreport accordingly
840    
841    checkpoint58e_post
842    o SEAICE_CGRID adjoint done
843    o R_STAR adjoint implemented.
844      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
845      * need to sort out init. of h0facc, etc.
846    o Make pkg/profile fully independent of ecco,cost, etc. stuff
847      to be able to use it in pure forward.
848    
849    checkpoint58d_post
850    o upgrade simple test-experiment to tutorial example:
851     step.1: duplicate the experiment and (step.2) will remove the old copy.
852      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
853      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
854      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
855      tutorial_global_oce_biogeo    <- copy of dic_example
856      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
857      tutorial_plume_on_slope       <- copy of plume_on_slope
858      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
859      tutorial_global_oce_optim     <- empty for now (David ?)
860      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
861     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
862    o correct a sign problem in cost_scat.F
863    o obcs and ptracers: fix boundary conditions for advections schemes
864      with larger stencil
865    o thsice adjoint: start
866    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
867      completeness
868    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
869      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
870    o ptracers adjoint:
871      * avoid extensive recomputatations
872      * fix missing re-init. of gptr (missed by TAF)
873    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
874      me to turn off the excessive output to STDOUT that this package produces
875    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
876      and add those terms in Vector-Invariant formulation.
877    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
878      if the control period (xx_hfluxperiod etc) is 0
879    o in profiles pkg, clean routines and fix details
880    o in ecco pkg, reading ssh data:
881      fix problem in case the model does not start at iter0=0
882    o fix mnc-pickup/restart for ptracers
883    o new package prifiles:
884      code to compute profile-based cost by Gael Forget
885      (modifs in ecco, ctrl, autodiff)
886    o Benign bug fix in initialization (spotted by M. Mazloff) of
887      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
888    
889    checkpoint58c_post
890    o adjoint: finish NLFS adjoint and provide reference output in
891      verification/global_ocean.90x40x15/results_ad_nlfs
892    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
893      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
894      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
895      with SEAICE_CGRID defined.
896    o move calendarDumps from "data" to "data.cal" and clean-up the code
897      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
898    o add useEXF & useCAL flags (for now, set in hard-coded way)
899    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
900      (were missing in NH mode, and wrong in quasihydrostatic mode).
901      waiting for Chris updated version of calc_gw to add those CALLs.
902    o fix bug in quasihydrostatic S/R ;
903      add a test for this option: global_ocean.90x40x15.qshyd
904    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
905      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
906    o add on/off flag useOffLine for package OFFLINE
907    o seaice:
908      - modify advection so that it works also on the C-grid
909      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
910        problem in multi-tile runs with C-grid
911      - add flags for clipping ice velocities and/or masking solver forcing
912      - fix drag (ocean on ice) formulation and a bug that caused noise in the
913        C-grid solver
914      - added a few comments to seaice_diffusion.F
915      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
916        are now exclusive)
917      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
918        required re-ordering the code a little:
919       + make DAIRN global variable (defined in SEAICE)
920       + move computation of the viscosities eta and zeta into a new separate
921         routine (because I need to recompute them in seaice_ocean_stress.F)
922    
923    checkpoint58b_post
924    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
925      update output.txt of exp. aim.5l_cs.thSI
926    o various mnc cleanups and improvements:
927      + shrink lookup tables by factor of ~4
928      + better error reporting when running out of lookup space
929      + able to handle longer path/file names (up to 500 chars)
930    o adjoint:
931      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
932      - TBD: "hidden" mom_vecinv recomp. in dynamics
933    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
934     (allow to differentiate between forcing components using new integer flags:
935      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
936     and add new flag to put Dissipation tendency out of Adams-Bashforth.
937    o ecco
938      - enable trend removal from SSH anomaly obs.
939    o adjoint
940      - a fix for PmEpR when #undef EXACT_CONSERV
941      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
942      - try to fix "hidden" recomp. in forward_step for NLFS
943        (NLFS seems broken sometimes after I checked it in)
944    o seaice:
945     - add c-grid version of the dynamic solver:
946       + three new routines that are the c-grid substitute lsr, dynsolver
947         and ostres
948       + put a few fields that were local to dynsolver into global common
949         blocks, so that I can move the computation of stresses etc into
950         seaice_lsr (saves coding but may break the adjoint).
951     - replace more hardwired parameters by runtime parameters
952     - add ice masks that mask the rhs of the implicit solvers where there
953       is no ice (commented out in seaice_dynsolver, because i am not sure
954       if this works properly), eventually this should replace the clipping
955       of ice velocities in seaice_dynsolver to +/-40cm/s.
956    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
957      include it only where its needed
958    o move balancing of fluxes before the call of external_forcing_surf
959    o seaice:
960      - correct units of turning angles (now they are really in degrees)
961      - move computation of GWATX/Y out of main routine into dynsolver
962      - initialize GWATX/Y in seaice_init
963    o Apply mask on Fresh-Water flux (needed for SSH forcing).
964      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
965    o seaice: add runtime flags for turning angles (default to zero)
966    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
967      and trend from exf forcing and ctrl control adjustments
968    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
969      (since checkpoint57x_post)
970    o change the default rotation period to 86164.s = the Earth rotation
971    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
972      and based on a reference stratification. Tested within hs94.cs-32x32x5.
973    o seaice advection: add code for choosing between the default (2nd order
974      central differences) and multiDim advection schemes provided by
975      pkg/generic_advdiff
976    o seaice:
977      - removed all references to SEAICE_GRID.h fields from
978        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
979        (cubed-sphere configuration will change a little)
980      - grid computations in seaice_init are obsolete now.
981      - cleaned up code a little so that is easier to read (hopefully).
982      - added new (better?) discretizations of default advection and diffusion
983        (turn on with SEAICEuseFluxForm)
984      - replace 1 in 3d global fields by kSurface in growth.F
985      
986    checkpoint58a_post
987    o seaice:
988      - bug fix in advect.F
989    o shelfice:
990      - separate shelfice load anomaly from pload (breaks with time
991        dependent forcing), => introduce constant field shelficeLoadAnomaly.
992        Its default is 0., but it may be computed more cleverly from (unknown)
993        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
994        done offline. A good approximation of the pressure load anomaly is
995        necessary to avoid large initial adjustment processes underneath
996        deep-reaching shelfice.
997      - small fix in ISOMIP shelfice_thermodynamics
998      - add more sophisticated thermodynamics of Hellmer (1989), this is
999        now the default
1000      - give a few constants more intuitive names
1001    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1002      if bulk formulae are used in long integration (especially EmPmR). Turn
1003      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1004      if balancePrintMean, the imbalance that is substracted is printed to
1005      STDOUT.
1006    o fix bug (typo) in obcs_apply_eta.F
1007    o add a new package shelfice which enables us to model the circulation
1008      underneath shelf-ice with draughts of hundreds of meters.
1009     - works
1010     - to do: + include improved thermodynamics
1011              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1012                instead of new field kTopC
1013              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1014                instead of new field R_shelfIce and new code in ini_depth.F
1015                and ini_mask_etc.F?
1016              + adjust vertical mixing schemes?
1017    o seaice pkg:
1018     - add a cpp-flag to include a simple formula for a salinity dependent
1019       freezing point of sea water at the surface
1020     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1021       meridional stresses are now different (and hopefully correct)
1022    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1023       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1024       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1025    o pkg/diagnostics: add options and parameters for regional-statistics
1026       diagnostics ; define regions by reading a region-mask from a file
1027       (might add other options later)
1028    o pkg/bulk_force:
1029     - add option and parameters to use AIM surface-flux formulae.
1030     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1031       others forcing fields (defined in PARM05, parameter file "data") are loaded
1032       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1033     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1034     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1035     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1036       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1037     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1038    
1039    checkpoint58
1040    o add "--embed-source" option to genmake2 which, when the supporting
1041      tools can be compiled (as determined by genmake2) will turn on the
1042      embed_files package which then embeds the entire MITgcm source code
1043      (*.[fFhc] + Makefile) used for the build within the executable
1044      - requested by CNH but off by default
1045      - adds a paltry <9MB to the mitgcmuv executable in most cases
1046      - only writes the output when useEMBEDSRC in eedata is true
1047    o clean up 3-dim. relaxation codes:
1048      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1049      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1050      * Thanks to Tom Haine for testing!
1051    
1052    checkpoint57z_post
1053    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1054      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1055    o fix the pickup behavior for obcs in combination with ptracers
1056    o fix a bug in ptracers_external_fields_load
1057    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1058      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1059    o transfered surface NH pressure to eta field (if exactConserv).
1060    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1061         and update lab_sea output.txt file.
1062    o completing 3-dim. relaxation code: additional term
1063         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1064      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1065      * At compile time, in "EXF_OPTIONS.h" set
1066          #define  ALLOW_CLIMTEMP_RELAXATION
1067          #define  ALLOW_CLIMSALT_RELAXATION
1068      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1069          tauThetaClimRelax3Dim = 15552000.0,
1070          tauSaltClimRelax3Dim  = 15552000.0,
1071      * 3 cases:
1072          1) Use a constant-in-time 3-dim. field
1073          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1074          3) Real-time relax. to time-evolving prescribed field
1075    o Adding Laplacian-type smoothness constraint on
1076      initial and boundary (forcing) controls (ic, bc)
1077      * enable at compile-time via
1078        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1079      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1080      * Absolute scale somewhat unclear so far
1081      * no area weighting was included since no other cost term does so far
1082    
1083    checkpoint57y_post
1084    First step for a NLFS adjoint
1085    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1086    o new init. routines for calc_r_star, calc_surf_dr
1087    o still need to deal with ini_masks_etc
1088    o testreport seemed happy
1089    checkpoint57y_pre
1090    
1091    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1092    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1093    o add new offset feature to offline pkg (plus minor cleanup)
1094    o cfc fixes for final year of integration
1095    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1096      be in GCHEM_OPTIONS).
1097    
1098    checkpoint57x_post
1099    o fix testreport Pb in multiple test experiment.
1100    o cleanup our namelist syntax in verification:
1101      - make it more F95 standards compliant (some work still needed)
1102      - allows the vast majority of our tests to work with gfortran
1103    o Non-Hydrostatic:
1104     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1105     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1106    o Allow to apply AB on T,S rather than on AB(gT,gS):
1107     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1108     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1109       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1110     - need a "clever" read_pickup to restart from the other AB formulation
1111    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1112    o remove some unused variables (reduces number of compiler warnings)
1113    o adjoint
1114      * Disable useVariableViscosity for adjoint for time being
1115        (there are a number of extensive recomputations)
1116      * Initialize certain variables needed for adjoint
1117    
1118    checkpoint57w_post
1119    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1120                 fix the singleCpuIO RS version of MDSWRITEFIELD
1121       and add a WARNING if using globalFiles=T with multi-processors.
1122    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1123      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1124    o tracer advection scheme:
1125      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1126       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1127       was not very convenient).
1128      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1129       (further tests needed for the implicit DST & Flux-Limiter schemes).
1130    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1131      and sRef for convenience, handy, when you want to initialize
1132      ptracers in a large domain with a constant non-zero value. Also,
1133      untangle ptracers_init.F a little.
1134    
1135    checkpoint57v_post
1136    o change dome exp. to use variable viscosity in side-drag terms.
1137    o remove all the files from the cfc_offline test since they are now
1138      incorporated into tutorial_cfc_offline which has been producing
1139      identical results for a few days of testing
1140    o add new parameter: sideDragFactor to enable half-slip-side BC
1141      and change side-drag S/R to use viscosity from mom_calc_visc
1142      (can switch back by setting sideDragFactor=0.); affects results at
1143      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1144       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1145    o vorticity & strain are now computed without masking, to account for
1146      no-slip-side BC in variable viscosity calculation ; mask is applied
1147      anyway later on, before computing advection/coriolis terms.
1148    o modify exp4 to test new obcs support for reading from external files
1149      and for passive tracers
1150    o fix behavior of ptracers_monitor when monitor output is written to a
1151      netcdf-file; still not independent of monitor.F (writes in the same
1152      file).
1153    o change default value of tRef (put a uniform, meaningful value for ocean
1154      & atmos) and initialize sRef (was missing, as Martin mentioned).
1155    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1156      to be proportional to enstrophy dissipation length.  Thus,
1157       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1158      This is now consistent with Smagorinsky and with the manual.
1159    
1160    checkpoint57u_post
1161    o OBCS and PTRACERS: add open boundary support for passive tracers
1162      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1163        OB-values from file; this is not different from the way theta and salinity
1164        are treated
1165      - however, Orlanski-radiation conditions are not supported, and the model
1166        will stop if you use pTracers and Orlanski at the same time.
1167      - beefed up the rountine obcs_external_fields_load: now only those open
1168        boundary values are overwritten with values from files for which there
1169        are really files, otherwise the OB-fields remain untouched. This makes
1170        it possible to use different OBs at different ends of the domain (as
1171        with EXF)
1172    o reduce number of exch calls in shap_filt (s2).
1173    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1174      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1175    
1176    checkpoint57t_post
1177    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1178    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1179      same truncation, independent of the face number: affects affects several
1180      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1181    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1182      note that biharmonic viscosity + no-slip was not tested in any experiment.
1183    o fix bug in non-linear free-surf side-drag ; generate new output for
1184      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1185    o make mnc honor the writeBinaryPrec flag for most kinds of output
1186    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1187    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1188      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1189    o add brackets in multi-terms sum to get same truncation, independent of
1190      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1191      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1192    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1193      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1194      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1195      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1196      Suggested values of viscosity parameters found in mom_calc_visc.
1197      Many new viscosity diagnostics available.
1198    
1199    checkpoint57s_post
1200    o Add clearing-house for viscosity calculations, mom_calc_visc and
1201      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1202      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1203      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1204      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1205      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1206      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1207      ViscAhStrain and viscAhTension are now retired.
1208    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1209    o In response to JMC's bug report, genmake2 now ignores any soft-links
1210      that it finds in the *current* directory when searching for files.
1211      Soft-links found in any other source directories will still work as
1212      they did before.
1213    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1214      a C routine to unlimit the stack size
1215    o mnc-ify pkg/aim snapshot vars
1216    o mnc-ify pkg/land as requested by Daniel
1217    o various changes to mnc including:
1218      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1219      - output can now be grouped so that all files within a group
1220          change the ITER portion of their names in lock-step together
1221      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1222          and works with both EXCH1 and EXCH2 (but needs more testing)
1223      - writing works for all verification test cases w/ g77 on Linux
1224    
1225    checkpoint57r_post
1226    o make MNC variable initialization happen earlier
1227    o add diagnostics for (almost) each term of the momentum Eq.
1228    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1229    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1230    o remove MINIMAL_TAVE_OUTPUT option ;
1231      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1232    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1233      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1234    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1235    o add time-dependent SST, SSS control
1236    o cost terms in ecco/ modularized (new cost_generic.F)
1237    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1238    o new infrastructure for seaice model vs. obs misfits in seaice/
1239      * driver from the_main_loop.F is seaice_cost_driver.F
1240      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1241      * gradient check in Exp. 6a of natl_box_adjoint/
1242    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1243      (see README file)
1244    
1245    checkpoint57q_post
1246    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1247    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1248      - bug was reported by Jean-Michel and Ian Fenty
1249    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1250      update exp. cpl_aim+ocn output.
1251    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1252      Needed for high-res. runs with large global files
1253      to be able to limit tapelev size
1254    o Changed some tests for adjoint:
1255      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1256      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1257      * global_ocean.90x40x15/ back to default 3-level checkpointing
1258    o Modifications to enable scripted COMMON to MODULE conversion
1259      * verification/OpenAD/code/ has necessary scripts and description;
1260      * converts, compiles and runs successfully;
1261    
1262    checkpoint57p_post
1263    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1264    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1265      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1266    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1267    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1268      (was already the case for dissipation with mom_vecinv,
1269       and also the case for grad.PhiHyd when staggered-timeStep)
1270      This will allow to put dissipation out-off the AB time-stepping.
1271     Unfortunately, affects truncation error. Update output of exp. that "fails"
1272      (cg2d matching number) and leave the others for later: front_relax(10),
1273      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1274      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1275    
1276    checkpoint57o_post
1277    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1278      (2) its ready to be documented during the 20050801 DocFest
1279    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1280      for ideal_2D_oce and lab_sea on linux_ia32_g77
1281    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1282      in global1x1_tot/code_seaice_adj to access indices 32, 33
1283      (worth another tag)
1284    
1285    checkpoint57n_post
1286    o adding precip control xx_precip 32
1287    o adding swflux control xx_swflux 33
1288    o Replacing 10 forcing penalty cost routines by 1 generic.
1289    o Implementing partitioning in time-mean and variable adjustment
1290      for atmos. state.
1291    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1292    o in natl_box_adjoint:
1293      * updated exp 1 to 10
1294        (but does not have time-mean vs. variable split results yet)
1295    o updated global1x1/*_seaice_adj/
1296      to incorporate latest changes
1297    o enable useSingleCpuIO for mdsio vector routines
1298      (applies in particular to tapelev I/O)
1299    o removed inefficient K-loop in all active_file*control*.F
1300    
1301    checkpoint57m_post
1302    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1303      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1304    o pkg/exch2: filling of face-corner halo regions is optional
1305      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1306    
1307    checkpoint57l_post
1308     tag before updating tutorials (pre-release-2)
1309    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1310       for output and interpolation of input fields onto model grid)
1311    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1312       Affects results of exp. rotating_tank ; update output.txt.
1313    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1314          and taking the square quantity and/or using a fraction-weight field.
1315    o fix aim_diagnostics_init.F mate numbers.
1316    o add mnc output capability to diagnostics/diagstat and update
1317      our cvsignore files for the ACSII output generated
1318    
1319    checkpoint57k_post
1320    o lab_sea now uses diagnostics package and provides a suite of
1321      new EXF diagnostics output.
1322    
1323    checkpoint57j_post
1324    o exf
1325      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1326        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1327        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1328      * extended diagnostics output
1329        - now includes all EXF variables
1330        - hs, hl moved to common block
1331        - separate S/R for diagnostics, called after ctrl vector is added
1332        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1333        - EXFqnet contains true Qnet (i.e. includes qsw)
1334      * updated verif. lab_sea, global_with_exf
1335      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1336        to ensure that diagnostics sees a true EXFqnet
1337    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1338    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1339      several times with different frequencies.
1340    o mnc-ify the thsice package as requested by Daniel Enderton
1341      - the monitor--MNC output needs work
1342      - many attributes need to be added (most are currently blank)
1343    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1344      - many attributes need to be added (most are currently blank)
1345    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1346    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1347    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1348      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1349         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1350    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1351     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1352    
1353    checkpoint57i_post
1354    o Diagnostics package was changed: diagnostic allocation is now deactivated
1355      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1356    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1357      add 1rst Order upwind vertical Shear.
1358    o add a quick fix for A/B checkpointing in OFFLINE mode
1359    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1360      end-run around the C/Fortran linking horror in eesup/src/timers.F
1361    o added pkg/runclock: allows user to terminate run based on wall clock
1362    o added non-hydrostatic scaling parameter: nh_am2
1363    o pkg/my82: futile attempt to make results compiler-independent by adding
1364      some "_d 0", etc. no effect.
1365    o for mnc output, fill the 'T' coordinate var with myTime and create a
1366      separate 'iter' variable for iteration count
1367    o pkg/diagnostics:
1368      add new capability: output of Global/Regional & per-level statistics ;
1369      tested against monitor output (including land & thSIce) on various exp.
1370    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1371    
1372    checkpoint57h_done
1373      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1374      data.diagnostics, data.gchem, data.ptracers) is done.
1375    
1376    o pkg/diagnostics: prepare for Global/Regional statistics.
1377      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1378    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1379      and rename it: DIFFERENT_MULTIPLE
1380    
1381    checkpoint57h_post
1382    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1383    o pkg/diagnostics: change output frequency, now in seconds (instead
1384      of Nb of iterations). This requires to change data.diagnostics.
1385    checkpoint57h_pre
1386    
1387    o in mnc, let the user create the output dir if both mnc_outdir_date
1388      and mnc_outdir_num are false
1389    o add fflags() to pkg/diagnostics which allows one to specify, on a
1390      per-file basis, the file precision [default behavior is unchanged]
1391    o added diagnostics to pkg/kpp, including computation of mixed layer
1392      depth based on a temperature/density criterion
1393    o updated verification/natl_box to test the new pkg/kpp diagnostics
1394    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1395    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1396    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1397      not mnc -- this mistake was found by JMC and is now corrected
1398    
1399    checkpoint57g_post
1400    o add Adams-Bashforth 3rd Order time stepping:
1401      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1402      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1403    checkpoint57g_pre
1404    
1405    o make lambda[Theta,Salt]ClimRelax spatially varying
1406      (default remains spatially uniform constant based on tau)
1407    o added new control variables
1408      * init. uVel, vVel, etanN
1409      * lambda[Theta,Salt]ClimRelax
1410    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1411      (suggested by G. Forget)
1412    
1413    checkpoint57f_post
1414    o add parameter "baseTime" = model base time = time at iteration zero
1415      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1416      account for baseTime shift
1417    o move Coriolis arrays from PARAMS.h to GRID.h
1418    checkpoint57f_pre
1419    
1420    o mnc-ifying the seaice package
1421    o introduced an alternative length scale calculation for use in the limiting
1422      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1423    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1424    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1425      as well as grad(vort3).  Made it compatible with both approximate form
1426      for the cubed sphere and full form of these gradients.  Added flag
1427      useFullLeith to select between approximate and full form.  
1428    o add "d0" in getcon.F to reduce differences between compilers/platforms
1429      update output.txt of exp. fizhi-gridalt-hs
1430    o change port_rand funtion to allow to set the seed.
1431    o fix obscure MNC bug involving conversion between reals and integers
1432      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1433        new version is now more standards-compliant
1434    o adjoint-related modifications
1435      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1436      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1437      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1438    
1439    checkpoint57e_post
1440    o Adding eddy stress controls a la Ferreira et al.
1441    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1442    
1443    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1444      update output.txt of exp. fizhi-gridalt-hs
1445    o add more "Z" dimensions and associated coordinate vars to MNC
1446    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1447    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1448      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1449      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1450      months and years.  Requires pkg/cal.
1451    o diagnostics: add pickup functionality
1452      - off by default for backwards compatibility
1453      - current version only uses MDSIO -- MNC will be added
1454    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1455    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1456    
1457    checkpoint57d_post
1458    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1459    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1460      output from the diagnostics package
1461    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1462    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1463      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1464    o add coordinate variables to the MNC output from the diagnostics package
1465    o change MNC-flags default value: true when useMNC=TRUE
1466    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1467      the ability (off by default) to read the grid information using MNC
1468    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1469    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1470    o do snap-shot diagnostics at the middle of the time-interval (instead of
1471      at the end).
1472    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1473      new test for AIM with thSIce + slab-ocean
1474    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1475    o move state variable diagnostics to the beginning of the time step ;
1476      (note: still needs some work specially for snap-shot diagnostics)
1477      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1478    
1479    checkpoint57c_post
1480    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1481    o generate new output.txt files on faulks with g77 & the new -ieee option
1482    checkpoint57c_pre
1483    
1484    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1485      update output.txt of exp. global_ocean.90x40x15
1486    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1487      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1488    o add saltFlux(+File) forcing capability with periodicExternalForcing
1489    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1490    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1491    o improvements for the MNC output from DIAGNOSTICS:
1492      - correct handling of the unlimitied dimension
1493      - all dims now have associated coordinate variables
1494      - variables located at U, V, and Corner ("Z") points are now written
1495        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1496        *all* data points are output
1497    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1498    o added pkg/seaice/seaice_monitor.F
1499    o mdsio_readfield.F can now read files visible only to master MPI process.
1500    o pkg/seaice: some test code for ice-modified ocean stress
1501    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1502      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1503      spurious negative numbers for precipitation and humidity.  Will cause
1504      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1505    o pkg/ctrl/
1506      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1507        May be enabled via doPackDiag
1508      *  introduce z-scaling of
1509         + gradient (doZscalePack) and
1510         + control (doZscaleUnpack)
1511    o pkg/mdsio/
1512      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1513      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1514    
1515    checkpoint57b_post
1516    o simplify options in diagnostics_fill arguments (remove weird combinations)
1517    o fix MNC coordinate variables so that they now contain per-face index
1518      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1519      general, EXCH2 grids are only aligned to a "local" coordinate system
1520    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1521    o Implement instantaneous output within pkg diagnostics:
1522      setting a negative frequency in data.diagnostics produces
1523     "snap-shot" output (as opposed to time-average if freq > 0)
1524    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1525      NOTE: change ptracer diagnostics name: use 2 characters to work with
1526            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1527    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1528      becomes the coordinate variable for the 'T' dimension
1529    o add CF-style coordinate variables to MNC
1530      - just a first cut:  numbers are meaningless on the cubesphere and
1531        missing along the T axis but otherwise it works!
1532    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1533    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1534    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1535      this is based directly on what the model compute, so that the content of
1536      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1537    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1538    o clean up build options files for SunOS, in particular
1539      - remove -traditional from xmakedepend
1540      - change -xarch=v9 to -xarch=native for f77
1541      - restore use of make (not gmake)
1542      - add CC=gcc if using g77
1543    o changes per discussion of AM, JMC, & EH3 today:
1544      - move redundant "grid" variables out of "state" -- in preparation of
1545        creating proper CF-style coordinate variables and in recognition
1546        that any/all grid variables can be easily copied (eg. w/NCO) from
1547        the grid files into any of the other NetCDF files
1548      - *always* output grid variables with MDSIO (this will eventually be
1549        changed)
1550      - output MNC grid file if useMNC is true
1551    o every instance of _END_MASTER() has been found and replaced with
1552      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1553      preprocessors
1554    o re-arrange diagnostics pkg initialisation:
1555     - allow each package to extend the available diagnostics list
1556     - add some checking and fix small problems (multi-threaded, ...)
1557     - new S/R diagnostics_fill (replace fill_diagnostics):
1558       look through the short list of active diag. (instead of the long list)
1559       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1560    
1561    checkpoint57a_post
1562    o this set of changes restores TAMC compatibility
1563      tested for global_ocean.90x40x15 adjoint on trough
1564      (what a pain)
1565    
1566    checkpoint57a_pre
1567    o some modifs in tools/build_options for sunos
1568    o call ctrl_pack for ctrl at end for optimcycle=0
1569    
1570    checkpoint57
1571    o add horizontal bi-harmonic viscosity for vertical velocity
1572      - new parameter viscA4W (defaults to viscA4)
1573      - affects only non-hydrostatic code
1574      - to be done: no-slip lateral boundary conditions
1575    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1576    o implement Implicit Vertical advection for pTracers
1577    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1578      (implemented also for implicit vertical diffusion & advection)
1579    o OBCS: extend application of tracer open boundary conditions
1580      to a strip beyond the boundary of width Olx/Oly
1581    o add call monitor to TAF set of required calls (flow directives)
1582      and include in natl_box_adjoint
1583    o untangle a few ifdefs related to cost, ctrl, autodiff
1584      untangel a few ALLOW_ECCO_OPTIMIZATION
1585    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1586      (theta2, salt2 in ecco_cost_weights)
1587    
1588    checkpoint56c_post
1589    o OBCS as control variables
1590      - update ctrl_ad_diff.list, obcs_ad_diff.list
1591      - remove balance of obcs controls from default
1592      - fix index bug nobcs in ctrl_init
1593      - fix dummy fields filen in ctrl_pack
1594      - add dummy weights for obcs
1595    o lsopt: comment out fort.94 output
1596    o optim:
1597      - remove unnecessary header files
1598      - adjusted namelists
1599      - add xerbla.F to Makefile
1600    o exf:
1601      - multiple modifications of exf_check_range
1602      - unit change in exf_init_runoff from [m/year] to [m/s]
1603    o mdsio:
1604      - i/o-vector change debugLevel from debLevA to debLevB
1605    
1606    checkpoint56b_post
1607    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1608      is called from DO_THE_MODEL_IO
1609      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1610      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1611      - clean up PTRACERS_WRITE_TIMEAVE a little
1612    o add another verification experiment that tests both the cfc-pkg and
1613      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1614      reactive tendencies treated inline with regular timestepping
1615    o testreport previously did a lousy job of comparing small numbers, so
1616      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1617      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1618      testreport.
1619    o ptracers_monitor: bug fix for MPI
1620    
1621    checkpoint56a_post
1622    o GCHEM: finish reorganizating the package
1623      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1624        (introduces another 3D-array for each passive tracer, but only if
1625        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1626        gchemTendency is not needed because the timestep is done separately)
1627      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1628      - GCHEM is now---more or less cleanly---separate from PTRACERS
1629      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1630        so clear to me how that should be done in a general way.
1631    o CFC: improve formatting of output in CFC_ATMOS
1632    o PTRACERS:
1633      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1634        that ALL experiments with ptracers enable can be checked. This makes
1635        GCHEM_MONITOR obsolete.
1636      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1637        monitorFreq
1638      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1639    o add PTRACERS (PTR0[1-5]) to testreport output
1640    o exf_check_range:
1641      * default changed to .TRUE.
1642      * will check values for niter0 if debLevA, every timestep if debLevB
1643      * STOP in exf_check_range if 'out of range'
1644      * range chosen generous to allow for potential extema
1645      TBD: a version with stricter range
1646           permitted range would be runtime parameters
1647    o GMredi:
1648      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1649      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1650      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1651    o GCHEM:
1652      - move call to GCHEM_FORCING_SEP, so that it is now called before
1653        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1654      - introduced a useGCHEM runtime flag and applied it everywhere.
1655      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1656        this flag is now only visible within GCHEM-pkg routines.
1657      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1658        be replaced by a 3D array that is computed before thermodynamics; for
1659        this, the tracer ID iTracer had to be included into the parameter list
1660        of ptracers_forcing
1661      - set up forward_step to call gchem_forcing, that will replace
1662        gchem_forcing_int in ptracers_forcing
1663      - cleaning up
1664    o small cleaning of exch2: remove files that are also in eesupp/src
1665    
1666    checkpoint56
1667    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1668    o mnc: cleanup "full" files--fixes out-of-memory problem
1669    o ECCO-GODAE
1670      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1671      * fully merged and updated from SIO code
1672        windstress sign change affects
1673        - exf_inscal_[u/v]stress
1674        - sign of xx_tau[u/v] adjustments
1675        - signs in cost_scat
1676      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1677      * natl_box_adjoint updated and compressed
1678      * 2-level checkpoint switch added
1679        (tested in EXP. 1 of natl_box_adjoint)
1680      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1681    o SVD
1682      * first complete, non-hacked version for SVD calculations
1683      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1684        performed via direct access files admtlm_vector.it????
1685        (via ctrl_[un]pack)
1686      * optimcycle is used for ARPACK iteration counter
1687        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1688      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1689        and add linear transforms where necessary
1690      * controls are initial/final SST, SSS (can be extended; need to check
1691        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1692    o mdsio: filename info to both stderr, stdout
1693    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1694      from sign change
1695    
1696    checkpoint55j_post
1697    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1698      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1699    o add consistent build directories and .cvsignore files to verification
1700    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1701    o make all subroutines 30 or less characters in length for certain older
1702      compilers to work (a thorough search only turns up two routines in
1703      pkg/ptracers)
1704    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1705      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1706    
1707    checkpoint55i_post
1708    o change arrays for total vertical diffusivity (2.D if explicit,
1709      3.D if implicit) ; each ptracer uses its own background value.
1710    o added mnc/NetCDF output capability to ocn_compon_interf
1711      - added bits to verification/cpl_aim+ocn so that it can run on
1712        ITRDA and other clusters without the mpirun "-wd" option
1713    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1714      configuration
1715    o give MNC the ability to create additional files rather than
1716      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1717      - the default is just less than 2GB which is a practical limit
1718        on many systems
1719    o Compute the non-local term using either KPP vertical diffusivity (=default)
1720       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1721    
1722    checkpoint55h_post
1723    o add verification test "vermix"
1724    o remove all the *_ioinc flags and replace with the single global
1725      outputTypesInclusive flag
1726    o allow to set a vertical profile of vertical diffusivity for T & S
1727    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1728    o useMNC moved from data.mnc to data.pkg
1729    
1730    checkpoint55g_post
1731    o Renaming carbon AD experiments to comply with testreport conventions
1732    o Updating adjoint of Held-Suarez hs94.1x64x5
1733    o Fixing directives for non-ECCO forward_step, after ECCO directives
1734      have been fixed to avoid recomp. of do_oceanic_phys
1735      Works well for global_ocean.90x40x15,
1736      but recomp. issue remains for carbon
1737    o Updating adjoint output for natl_box_adjoint after
1738      pkg/ecco has been modified (see taga c55d_post)
1739    
1740    checkpoint55f_post
1741    o rename to timeave_init_fixed
1742    
1743    checkpoint55e_post
1744    o some delicate re-shuffle of store directives to avoid one
1745      extra call of do_oceanic_physics
1746      affects ecco_the_main_loop.F, do_oceanic_physics.F
1747      checkpoint_lev1_directives.h
1748    o NB: this may break global_ocean adjoint temporarily,
1749      but it is clear how to fix it. Will do later, need this now.
1750    
1751    checkpoint55d_post
1752    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1753    o ecco_cost_weights is modified to 1x1 runs
1754    o modifs to allow observations to be read in as
1755      single file or yearly files
1756    o enable to read exf forcing fields as either
1757      single file or yearly files (flag useExfYearlyFields)
1758    checkpoint55d_pre
1759    
1760    o switch between 2-level and 3-level checkpointing
1761    o add ability of MNC to write local and "partial" (eg. 2D slices where
1762      the full 3D field is never actually stored) arrays to NetCDF files
1763      with the correct (that is, the complete multi-dimensional) set of
1764      array indicies
1765      - used in mom_vecinv() to write the diagFreq output
1766      - tested (demonstrated) in verification/aim.5l_cs
1767    o further mnc-ification
1768      - add verification/lab_sea to the list with mnc setups
1769      - fix undefined mnc v-names in cd_code
1770      - add kpp to mnc output (both snapshot and timeave)
1771    o non-hydrostatic code
1772      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1773        in calc_gw.F
1774      - defaults to viscAh
1775      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1776        friction or Leith) in non-hydrostatic mode, as long as there is
1777        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1778    o pkg/cost
1779      extend simple cost functions to treat time mean quantities
1780      (T,U,V) via cost_accumulate_state from cost_tile
1781    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1782        be 2 times larger than the minimum size the advection scheme requires.
1783        now get a perfect conservation of salt in advect_cs test-exp (updated)
1784    o GGL90 (Gaspar's TKE mixed layer)
1785      - add horizontal diffusion of TKE, requires exchanges in
1786        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1787        default. In OPA there is no horizontal diffusion of TKE but the
1788        mixing coefficients are computed from a horizontal average of TKE of
1789        6 points or so. I think that diffusion has a little more physical
1790        justification.
1791      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1792        was in vain)
1793      - mask tke-variable in ggl90_init
1794    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1795    o fix biharmonic diffusion on CS-grid.
1796    o more obcs stuff
1797      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1798        for reading boundary values. This routine is called from
1799        obcs_prescribe_read
1800      - updated obcs_check
1801      - changed sponge layer relaxation parameter units for days to seconds
1802      - turned off sponge layer by default
1803      - changed argument list of OBCS_CALC to myTime+deltaTclock
1804      - fixed about 35 bugs in obcs_external_fields_load
1805    
1806    checkpoint55c_post
1807    o obcs stuff
1808      - new runtime flags useOBCSprescribe, useOBCSbalance
1809      - re-arranged obcs_calc
1810      - moved exf_getobcs to obcs_prescibe_read
1811        obcs_prescibe_read is called after ORLANSKI stuff
1812        and independent of it (executable can contain all).
1813      - updated obcs_check
1814      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1815        These may be necessary only if tangential velocities are
1816        prescribed at OB, not sure, needs testing.
1817    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1818      which simplifies the calls and passes the ifc check-bounds test
1819    
1820    checkpoint55b_post
1821    o add a 2D scalar, Z location, exchange_2 routine.
1822    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1823      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1824      affects advect_cs results (for the wrong reason): update output.txt
1825    o use a more standard discretization for biharmonic viscosity ;
1826     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1827      affects results of dome set-up: update output.txt
1828    o fix gad_advection.F (CubedSphere part), back to version 1.23
1829    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1830    
1831    checkpoint55a_post
1832    o merged code to
1833      * prescribe/read time-dependent open boundaries
1834        (works in conjunction with exf, cal)
1835      * sponge layer code for open boundaries
1836      * each boundary N/S/E/W now has its own CPP option
1837        (healthy for the adjoint)
1838    
1839    checkpoint55
1840    o up-to-date adjoint of previous breaks
1841      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1842      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1843      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1844      - carbon: * remove tr1-related adjoint verification
1845                * add ptracer as control variable
1846    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1847      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1848    
1849    checkpoint54f_post
1850    o in verification/carbin/ remove experiment related to
1851      ALLOW_PASSIVE_TRACER (array tr1 etc)
1852      code_ad/ input_ad/ results_ad
1853    
1854    o add two new packages
1855      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1856        + subject to optimization (memory)
1857      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1858        + subject to reordering (many GOTOs in the original code)
1859        + so far opps is called for every (i,j) point, and then operates in
1860          the vertical; one may want to reorder the scheme in order operate in
1861          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1862          fields)
1863    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1864      - all verification tests compile and run with linux_ia32_g77
1865      - defaults are compatible with current input files--nothing
1866        should change if you were not previously using MNC
1867      - MNC output has been added in numerous places (eg. timeave)
1868        but there are still a few writes not yet do-able with MNC
1869        (this is in progress)
1870      - flags now allow for either/or/both use of MDSIO and MNC and
1871        documentation will soon follow
1872      - numerous small formatting cleanups for ProTeX
1873    o add version info (via BUILD_INFO.h) to MNC and stdout
1874    
1875    checkpoint54e_post
1876    o add two new packages
1877      - pp81 (Packanowski and Philander, 1981), Richardson number and
1878        stratification dependent mixing
1879      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1880      - these scheme operate in a similar manner as KPP (without ghat, of
1881        course), however there is only one diffusivity that is used for both
1882        temperature and salinity (and passive tracers)ç
1883    o add offline package
1884    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1885      provided by Stephanie Dutkiewicz
1886    o genmake2: add ability to search for C compilers and cleanup test output
1887      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1888    
1889    checkpoint54d_post
1890    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1891    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1892      leading to additional shift by 5 days each year of integration
1893       (i.e. leading to considerable offset over the years)
1894    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1895    o start with no AB and no initial filtering (staggerTimeStep):
1896      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1897    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1898      (external loading & cpl import/export stay in forward_step.F)
1899    o update coupling interface to work with new staggerTimeStep
1900    o change MDSIO ptracers_pickup.
1901    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1902    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1903    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1904    
1905    checkpoint54c_post
1906    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1907      this affects (truncation error) output.txt of test-exp:
1908       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1909    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1910    o change Qnet to always be the net heat flux, (+upward).
1911      affects (truncation error) output of natl_box exp.: updated
1912    o define the max number of passive tracers in PTRACERS_SIZE.h
1913    o start to test mnc routinely in exp0
1914    o add sea-ice loading (sIceLoad) as a new forcing field.
1915    
1916    checkpoint54b_post
1917    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1918       impressive on Altix and Opteron systems)
1919    o diagnostics can now write NetCDF files through the mnc package
1920    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1921    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1922    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1923      affects (truncation error) output of lab_sea & natl_box exp.: updated
1924    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1925    
1926    checkpoint54a_post
1927    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1928    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1929    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1930    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1931      + internal_wave (shift in writing cg2d_ini_res)
1932    checkpoint54a_pre
1933    
1934    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1935      - modified verification/lab_sea and natl_box_adjoint accordingly
1936    
1937    checkpoint54
1938    checkpoint53g_post
1939    o prepare splitting of thermodynamics: store convect.counter in common block
1940    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1941      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1942    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1943    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1944    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1945    o restore adjointability
1946    
1947    checkpoint53f_post
1948    o modifications that affect AIM experiment results (update output.txt):
1949      - no advection of S at top interface Nr (pkg/generic_advdiff)
1950      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1951    o AIM pkg:
1952      - include stability function into surf.Flux derivative relative to Tsurf
1953      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1954    
1955    checkpoint53e_post
1956    o merged cylindrical coord configuration
1957    o added rotating_tank experiment
1958    checkpoint53e_pre
1959    
1960    checkpoint53d_post
1961    o faulks upgraded: re-generate output.txt that have changed:
1962       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1963    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1964    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1965    o added Sadourny discretization of Coriolis
1966      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1967      - re-enabled use of omega3 (useAbsVorticity)
1968    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1969      vector-invariant equations
1970      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1971    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1972      hopefully without new bugs
1973      - still to do: biharmonic friction for non-hydrostatic w
1974    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1975    o regenerated output for global_ocean_ebm (using -ieee)
1976    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1977      of mom_common/
1978      - simple re-arrangement of instructions within computing loop
1979    checkpoint53d_pre
1980    
1981    checkpoint53c_post
1982    o new version of coupler for AIM+thSIce and Ocean models
1983     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1984     - land: change Evaporation of snow
1985     - aim with thSIce: fix bug in snow-precip.
1986    o changes to calc_gw.F
1987     - bug fix for w^2 term near the bottom boundary
1988     - (hopefully) improve the lateral slip boundary condtions for use with
1989        partial/looped cells
1990      - because the bug fix changes two verification experiments anyway (exp5
1991        and plume on slope), change the lateral boundary condition from half slip
1992        to the value of no_slip_sides
1993    o ebm package wasnt quite up to the parallel task. Fixed that.
1994    o Adjoint of EBM package + verification
1995      * TLM OK
1996      * ADM not sufficient accuracy yet (needs further testing)
1997    
1998    checkpoint53b_post
1999    o Commiting new energy balance model to repository
2000      * package is pkg/ebm
2001      * verif. is verification/global_ocean_ebm
2002      * references are in ebm_driver.F
2003    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2004    C        Global thermohaline circulation. Part I:
2005    C        Sensitivity to atmospheric moisture transport.
2006    C        J. Climate 12(1), 71-82
2007    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2008    C        Global thermohaline circulation. Part II:
2009    C        Sensitivity with interactive transport.
2010    C        J. Climate 12(1), 83-91
2011    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2012    C        Destabilization of the thermohaline circulation
2013    C        by atmospheric eddy transports.
2014    C        J. Climate 7(12), 1870-1882
2015    o Will need long integration testing.
2016    checkpoint53b_pre
2017    
2018    o created pkg/mom_common in preparation for variable viscosity code
2019    o renamed and split ini_mnc_io
2020    o pkg/land: only liquid water can diffuse or run-off
2021    o AIM using land: soil wetness availability account for snow
2022    o added printMapIncludesZeros to EEPARMS namelist
2023    
2024    checkpoint53a_post
2025    o restore TAMC compatiility for exf_constants.h
2026      (no usage of _d in .h)
2027    o Additional storing in KPP in an attempt to fix
2028      TAMC problem with adjoint of KPP code.
2029      (no success...)
2030      Identical code works fine with TAF.
2031    o Fixed verification/natl_box_adjoint experiments.
2032      Initial conditions for Experiments 4 and 5 are now
2033      set to "SEAICE_initialHEFF=0", which is more reasonable,
2034      and hence gives results closer to that of Experiment 2.
2035      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2036    
2037    checkpoint53
2038    o stable checkpoint with up to date adjoint
2039      TLM tests only run for 1st grdchk at the moment. Its unclear if
2040      this is a code problem or a problem with resetting code for g_
2041      variables that is being autogenerated wrong.
2042      Otherwise:
2043       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2044       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2045         are both still in chaos following their security messes.
2046    
2047    checkpoint52n_post
2048    o various build (mostly genmake2) changes including:
2049      - ability to build/run more easily within Cygwin and MacOS X
2050      - more complicated Makefiles with a stronger dependence on Gnu Make
2051    o pkg/seaice modifications
2052      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2053        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2054        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2055      - changed proxy for geostrophic velocity and updated
2056        verification/lab_sea/results/* accordingly
2057      - removed ADI dynamic solver from pkg/seaice
2058      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2059        they caused a segmentation fault under certain circumstances
2060      - removed unused field WATR
2061    o bug fix in exf-package:
2062      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2063         now reflect that.
2064    o small fixes in the cal-package:
2065      - set reference date to first of January for the 'model'-calendar
2066      - failing of cal_CheckDate in cal_FullDate now actually results in a
2067        warning
2068    o small modifications in exf-package to increase flexibility:
2069      - change climtempfreeze from a constant to a runtime parameter that
2070        is specified in data.exf_clim (default = -1.9)
2071      - introduce runtime parameter windstressmax (default = 2.0) that is
2072        specified in data.exf
2073    o fix in pkg/thsice:
2074      - update Evap (Tsf changes) to be consistent with Latent heat flux
2075      - maintain snow precipitation unchanged (even if Tsf >=0).
2076     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2077    
2078    checkpoint52m_post
2079    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2080      this does not change any of the results, because myIter=0 in swfrac always
2081      lead to jwtype=2 (the default anyway), but the call makes little sense
2082      as a default
2083    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2084    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2085      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2086    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2087    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2088    o extending useSingleCpuIO option to work with new exch2 I/O format
2089      - old-style, missing-tile I/O is still accessible by defining CPP
2090        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2091    o monitor package can write to NetCDF files and/or STDOUT
2092    o fix re-definition bug in MNC_GRID_INIT_ALL()
2093    o doc/api_reference added
2094      - a framework for building an API Reference Manual using all
2095        the "protex" comments embedded in the code
2096      - see pkg/generic_advdiff, pkg/mnc for examples
2097    o MNC:
2098      - make myThid the last argument for all subroutines
2099      - new default for the grid files: NO halos
2100      - add useMNC and other run-time flags
2101      - separate per-file-group handling of the unlimited dimension
2102      - early initialization of MNC w/ flags read at the eeboot stage
2103        and lookup tables set in initialize_fixed
2104      - write all MNC output to a freshly-created directory
2105    o thermodynamics sea-ice (thsice) is now tested with testreport.
2106    o test exp. advect_cs: use the standard cs32 grid ; update output.
2107    o Added functionality to grdchk:
2108      pick global i,j,k position (or nearest wet) where to perform check.
2109    
2110    checkpoint52l_post
2111    o new land formulation:
2112      a) use ground enthalpy as prognostic variable to ensure exact
2113         energy conservation.
2114      b) account for water temperature and for latent heat of freezing
2115         in all processes (rain, run-off, ground storage)
2116      c) compute surface and ground temperature implicitly.
2117    o aim_v23 modification for new land model:
2118      a) Treat separately land / ocean / sea-ice surface fluxes
2119         to allow implicit computation of land & sea-ice surface temp.
2120      b) add snow precipitation.
2121    checkpoint52l_pre
2122    
2123    o fix problem (when 1 tile is empty) in min/max monitor.
2124    o fix bug in timeAve (u,vZetatave in common block)
2125    o no restoring terms under ice for pkg/seaice
2126    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2127    o bug fix for pkg/seaice pickups
2128    o change MNC call locations and add coordinate attributes
2129    o mask vorticity at the corner ; affects global_ocean.cs output
2130    o fix ini_curvilinear_grid ; test CS experiments with mpi
2131    o aim.5l_cs: modify sea-ice fraction input file ; update output
2132    o exf: Adding simple range check routine for exf fields after read
2133    
2134    checkpoint52k_post
2135    o removed top-level directory "diags"
2136      - we migrated these functions to pkg/timeave a long time ago
2137    o fixed bug introduced in pkg/monitor
2138    o accuracy ctrlprec = 32 insuffient for gradient checks using
2139      averaged fields (I/O via cost_averages)
2140      -> use ctrl.h in active_file*.F to control I/O precision.
2141    o paramter list of CALL ADTHE_MAIN_LOOP
2142    o added initial do_the_model_io to ecco
2143    o set all ...Freq to zero after cost_final
2144      taveFreq, dumpFreq, pChkptFreq
2145    o MAIN and ECCO differentiability restored
2146    
2147    checkpoint52j_post
2148    o fix nchklev in tamc.h for global_ocean...
2149    o Bringing flow and store directives up-to-date
2150    o Really weird thing!
2151      call do_the_model_io from the_main_loop with parameters
2152      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2153      TAF places a faulty re-call of initialise_varia
2154      after cost_final call which should not be there!
2155    checkpoint52j_pre
2156    
2157    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2158      error messages
2159    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2160    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2161      debug output
2162    o modfied mdsio_writefield.F to handle non-global files under exch2
2163    o update AIM Cubed-Sphere exp (aim.5l_cs):
2164      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2165    o update AIM Equatorial Channel exp:
2166      use standard aim_v23 pkg and change the SST fields to be more realistic.
2167    o globalFile now works with exch2
2168    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2169      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2170    o limit timeave output for hi-res integrations
2171    
2172    checkpoint52i_post
2173    o removed CPP_EEOPTIONS.h from verification/*/code
2174    o updated the tiling for global_ocean_pressure
2175    checkpoint52i_pre
2176    
2177    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2178      the old pkg/aim).
2179    
2180    checkpoint52h_pre
2181    o shortened offending lines in exch2_send_rx?.template
2182    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2183    o genmake2: add build & execute test for NetCDF code
2184    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2185      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2186    o added useSingleCPUIO flag to monitor.F and mon_out.F
2187    o added temporary hack for sea-ice dynamics on the cube:
2188      metric terms are ignored and it is assumed that
2189      there is no sea-ice on cube faces 1, 2, 4, and 5.
2190    
2191    checkpoint52f_post
2192    o added exch2 cube routines to pkg/exch2
2193    o modified hs94.cs-32x32x5 to use it
2194    o added new grid files to hs94.cs-32x32x5
2195    checkpoint52f_pre
2196    
2197    checkpoint52e_post
2198    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2199      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2200    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2201      to work with implicit vertical advection and AB ;
2202    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2203    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2204     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2205    checkpoint52e_pre
2206    
2207    o fix bug in impldiff when Nr=1 or Nr=2.
2208    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2209    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2210    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2211      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2212    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2213    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2214    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2215    
2216    checkpoint52d_post
2217    o re-tiled many expts to allow comparison in multi-processor mode
2218      - updated output accordingly
2219      - changed hs94.128x64x5 to use intial T from file rather than use the
2220        random number generator
2221    o add infrastructure in model routines for fizhi and gridalt packages
2222    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2223    o changes to permit hi-res, cubed-sphere, configuration
2224      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2225      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2226      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2227        of surface winds for the cube
2228      (A verification experiment, based on global_ocean.cs32x15, but with
2229       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2230       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2231       complete with example surface forcing files and matlab scripts to look
2232       at the output and compare it with that of global_ocean.cs32x15.)
2233    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2234       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2235       to conform to the common rule.
2236    o check-in the first version of the coupler + interfaces for multi-components
2237       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2238       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2239       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2240       - ocean and atmos. share the same horizontal grid (no interpolation).
2241       - exchanges between component and coupler is done in forward_step
2242    o new verification experiment, cpl_aim+ocn:
2243       coupled ocean - AIM atmosphere on cs32 grid.
2244    
2245    checkpoint52d_pre
2246    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2247    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2248    
2249    checkpoint52c_post
2250    o Fixing OPTIONS files for use of exf:
2251      - ALLOW_ECCO not needed
2252      - ECCO_CPPOPTIONS.h should not be included from
2253        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2254        as has been the case in the past
2255      - All cal/exf related options are currently set in
2256        single header file. Should remain so until we
2257        agree on a consistent new policy.
2258    o Removed all CPP options for cal package.
2259      cal has no more CPP options.
2260    o modified STOREs in GAD_ADVECTION
2261    o corrected key comp. for passkey
2262    
2263    checkpoint52b_post
2264    o new version: "thsice" of thermodynamic sea-ice pkg:
2265     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2266     - modify fluxes but do not change theta directly;
2267     - light cleaning of bulk_force pkg (still needed with thsice).
2268     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2269       + output_thsice.txt to test thsice & bulk_force pkgs.
2270    o put back grid & coriolis monitor output.
2271    checkpoint52b_pre
2272    
2273    o call "do_the_model_io" at the beginning (=> dump initial state)
2274    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2275    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2276      (need info on NUMBER_OF_PTRACERS)
2277    o missing PTRACERS headers in some routines
2278    o default tamc.h in pkg/autodiff supposed to crash
2279      to ensure proper customization
2280    
2281    checkpoint52a_post
2282    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2283      - moved surfaceTendencyTice from pkg/seaice to main code
2284      - subroutine FREEZE_SURFACE now limits only surface temperature
2285        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2286        => new output.txt for global_ocean.cs32x15 & global_with_exf
2287      - keep the old version of FREEZE for backward compatibility;
2288        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2289      - corresponding modifs for TAF directives
2290    o added surface flux output variables to TIMEAVE_STATVARS
2291    o time-averaged output for pkg/ptracers
2292    o fix problem with ECCO-related divided adjoint
2293      snapshot file was missing some ad-variables,
2294      but no warning issued by TAF
2295    
2296    checkpoint52a_pre
2297    o some bug fixes for #undef REAL4_IS_SLOW
2298    
2299    checkpoint52 = ecco_c52_e35
2300    o after testing adjoints of checkpoint51u_post
2301    
2302    checkpoint51u_post
2303    o this is the post-merge tag of the ecco-branch
2304      (needs another clean checkout and re-testing)
2305    o various natl_box_adjoint configs and results
2306      but no input fields
2307    o obcs adjoint not yet merged!
2308    o adding ECCO global 1x1 and 2x2 degree configs
2309    o updated/extended some store directives for seaice
2310    o pkg/ecco now containes ecco-specific part of cost function
2311    o top level routines the_main_loop, forward_step
2312      supersede those in model/src/
2313      previous input data.cost now in data.ecco
2314      (new namelist ecco_cost_nml)
2315    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2316    
2317    checkpoint51t_post
2318    o this is the pre-merge tag of the ecco-branch
2319    
2320    checkpoint51s_post
2321    o cleanup: removed various obsolete #define-s
2322    o pkg/grdchk
2323      - renamed 'ph-grd 3' to 'grad-res'
2324      - merged from ecco-branch
2325        (remaining bug fixes for obcs gradient checks)
2326      - additional high-precision output for testreport
2327        (grep for 'precision_grdchk_result')
2328    
2329    checkpoint51r_post
2330    o cleaned up or removed CPP_OPTIONS.h files
2331    o updated results for some of the tests to reflect the new
2332      optfiles (-ieee: -O0 instead of -O3)
2333    
2334    checkpoint51q_post
2335    o cd_code:
2336      - moved cd_scheme.F -> cd_code_scheme.F
2337      - separate read_checkpoint from cd_code_ini_vars.F
2338      - separated cd_code part from write_checkpoint
2339      - updated AD_SOURCE, generated .flow
2340      - added CD_CODE_VARS.h to the_main_loop
2341      - Moving cd_code specific store dir.s to pkg/cd_code
2342    o ctrl package totally restructured
2343      - pack/unpack now optional and decoupled from
2344        xx_/adxx_ I/O
2345      - ctrl_pack/unpack cleaned
2346        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2347      - confined inclusion of AD_CONFIG.h to where necessary.
2348    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2349    
2350    checkpoint51p_post
2351    o create initial cd_code package
2352      - WARNING: the initialization of fields within packages
2353        is broken because INI_FIELDS (where READ_CHECKPOINT is
2354        called) is called *before* PACKAGES_INIT_VARIABLES.
2355        This seems to be backwards since
2356        1) its important to initially zero the entire field including
2357           the "halo" region
2358        2) zeroing needs to be done *before* reading pickup info
2359           and the pickup call might or might not happen in any
2360           particular run
2361      - this needs an overhaul for R2
2362    o cleanup verification/*/code/GMREDI_OPTIONS.h
2363    o cleanup testreport
2364    
2365    checkpoint51o_post
2366    o bringing AD-related verif's up to date with genmake2
2367      - carbon/
2368      - global_ocean.90x40x15/
2369      - hs.94.1x64x5/
2370      - (front_relax/ )
2371    o (more) consistent directory structure for AD-related verif.'s
2372    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2373    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2374    o bug fix in find_alpha.F for MDJWF:
2375      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2376        change rho -> rho-rhoConst
2377      - replace call find_rho to find_rhonum
2378    o initialisation of rFlx extended to full array (required by TAF)
2379      and shifted to thermodynamics
2380    o removed PTRACERS.h in ptracers routine
2381    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2382    o Correcting initialisations for fVerU, fVerV.
2383    o helping TAF to recognize dependency on kUp for
2384      fVerU, fVerV
2385    o Replacing delZ by delR in pkg/ctrl/
2386    checkpoint51o_pre
2387    
2388    o undid all of cp51 pending some cleanups and discussion
2389    o added the [#include "AD_CONFIG.h"] statement to all files that need
2390       it for adjoint/tl #defines
2391     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2392     o removed tools/genmake since it no longer works
2393    
2394    checkpoint51n_post
2395    o modifications to make FREEZE flux visible to pkg/kpp
2396      - moved surfaceTendencyTice from pkg/seaice to main code
2397      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2398      - subroutine FREEZE now limits only surface temperature
2399        (this means new output.txt for global_ocean.90x40x15,
2400         global_ocean.cs32x15, and global_with_exf)
2401    o added surface flux output variables to TIMEAVE_STATVARS
2402    
2403    checkpoint51n_pre
2404    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2405    o added [#include "AD_CONFIG.h"] to all files that use the following
2406      defines:
2407      - ALLOW_ADJOINT_RUN
2408      - ALLOW_TANGENTLINEAR_RUN
2409      - ALLOW_ECCO_OPTIMIZATION
2410    
2411    checkpoint51m_post
2412    o incorporating changes to get TAMC/TAF working in genmake2
2413      - added new TAMC/TAF targets to the Makefile
2414      - various cleanups related to package handling
2415      - these changes should have no impact on the forward model
2416    
2417    checkpoint51l_post
2418    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2419     - faster algorithm for cal_addtime.F
2420     - higher precision arithmetic, where needed
2421     - pkg/exf *startdate variables changed from calendar date to
2422       model integration time
2423    
2424    checkpoint51l_pre
2425    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2426    o enable to apply restoring on S & T only in a latitude band.
2427    o update output (external_forcing_surf modif. change truncation errors)
2428       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2429    
2430    checkpoint51k_post
2431    o change default to: useNHMTerms=.FALSE.
2432     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2433       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2434     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2435        exp1, ideal_2D_oce
2436     - change data file of oceanic exp (leave the results unchanged for now)
2437       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2438    o set gravitySign automatically according to the vertical coordinate used
2439      (and change sign: back to "logical" value: +1 when R increases downward)
2440    o added an include barrier to the default CPP_OPTIONS.h and
2441      removed the #include "PACKAGES_CONFIG.h" from it
2442    o fix a bug in mom_fluxform (from chk51j_post)
2443    
2444    checkpoint51j_post
2445    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2446    o adjusted some flow directives (dynamics, thermodynamics)
2447    o added cubed-sphere case to test cost function
2448    o heckpoint_lev?_directives.h now include
2449      pkg-specific directives, whenever those are enabled.
2450    o Moving pkg-specific flow directives to corresponding pkg
2451      Moving pkg-specific differentiation list to corresponding pkg
2452      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2453      ---> conventions are
2454           - pkg_ad.flow
2455           - pkg_ad_diff.list
2456           - pkg_ad_check_lev?_dir.h
2457    
2458    checkpoint51i_post
2459    o merge of the branch-genmake2
2460      - knowingly breaks the older genmake
2461      - automatic generation of all ALLOW_${PKG_NAME} defines
2462      - new testreport supersedes older testscript
2463    o large number of package inclusion and header cleanups
2464    checkpoint51i_pre
2465    
2466    o new output for adjoin of global ocean vector invariant
2467    o fix for checkpoint of thermodynamic seaice and bulk_force
2468    o Steph gchem various cleanups
2469    
2470    checkpoint 51h_pre
2471    o fixed some single quotes
2472    o modify gchem pkg to be more versatile
2473    o modifications to clean up dic pkg
2474    o add pkg/cfc
2475    
2476    checkpoint51g_post
2477    o provide links for ARPACK and ADM*TLM
2478    o start removing verification/vero/
2479    o update AD-related stuff
2480      (in particular some IF-statements in model/src/ routines)
2481    o adding to verification/global_ocean.90x40x15/ adjoint of
2482      vector invariant setup
2483    
2484    checkpoint51f_post
2485    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2486    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2487      of tracer Green's fucntions for ocean inversion project.
2488    
2489    checkpoint51f_pre
2490    o Added on-the-fly spatial interpolation capability
2491        "USE_EXF_INTERPOLATION" to pkg/exf.
2492      - This is a temporary Cartesian-grid hack until
2493        the super-duper ESMF coupler becomes available.
2494      - See verification/global_with_exf/README for usage example.
2495      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2496        flags and modified pkg/seaice accordingly.
2497    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2498        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2499        non-local transport term.
2500    
2501    checkpoint51e_post
2502    o pkg/mom_vecinv:
2503      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2504      - add time-ave diagnostic of vorticity advection.
2505    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2506    o atmospheric geopotential: - include water vapor effect;
2507                                - use p^kappa in p* scaling.
2508    o land pkg: read initial state from files.
2509    o AIM : add stratospheric drag in the upper level
2510    
2511    checkpoint51d_post
2512    o change function ILNBLNK (=> last non-blank char.) to return zero
2513      (instead of the string length) when the string. char is empty
2514    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2515    o modif's to restore TAMC compatibility
2516      - avoid "_d" constructs in PARAMETER declarations
2517      - avoid interrupting lines by comment lines
2518    o Use cluster local disks for purely local I/O
2519      vs. globally visible disks needed for ctrl stuff
2520      (merged from ecco-branch)
2521      - new active_file_loc... and mdsio_..._loc routines
2522      - affected packages: autodiff, ctrl, grdchk, mdsio
2523    
2524    checkpoint51c_post
2525    o introducing integer flag debugLevel
2526      - debLevZero: suppress all output
2527      - debLevA: standard
2528      - debLevB: equivalent to current debugMode=.TRUE.
2529    o introducing pathname variable mdsioLocalDir for mdsio
2530      that can be specified at runtime
2531      (relevant for cluster I/O to local disk)
2532    `
2533    >>>checkpoint51b_post
2534    adjoint of ptracers
2535    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2536    o extended state in checkpoint_lev?, etc.
2537    o alternative ctrl/cost with tr1 or ptracer
2538    o new comlev1_bibj_ptracers
2539    o new ptracers.flow
2540    o made ptracers_forcing same as external_forcing_s
2541    o added verification for adjoint with ptracers
2542      - adm. grdchk fail so far
2543      - tlm. grdchk OK
2544      - checked tapelev/comlev recomputations: OK
2545    <<<checkpoint51b_pre
2546    
2547    checkpoint51a_post
2548    o added code for biogeochemistry package
2549      - new pkgs: dic, gchem
2550      - new subroutine in ptracers
2551    o modify code for biogeo packages
2552      - in model/src and pkg/ptracers
2553    
2554    checkpoint51
2555    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2556      - autodiff, ctrl, exf, grdchk, seaice
2557      kept separate packages
2558      - cost, ecco, obcs
2559    o updating verification/internal_wave, verification/lab_sea
2560      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2561    
2562    checkpoint50i_post
2563    o Preparing next differentiable checkpoint and sync
2564      of MAIN vs. ecco-branch
2565      - 1st step: this one is differentiable
2566      - 2nd step: next(! not this) checkpoint will have updated packages
2567                  from ecco-branch)
2568    
2569    checkpoint50h_post
2570    o new package "land": provide surface BC for AIM.
2571    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2572    o AIM: use true log-P extrapolation for near surface temp (= as in
2573        F.Molteni paper) ; update aim.5l_cs output.
2574    o New variable in PARM03 for more flexible pickups
2575    o somewhat cleaned package initialisation sequence for
2576      ctrl/ cost/ ecco/ in packages_... routines
2577    
2578    checkpoint50g_post
2579    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2580      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2581      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2582        made the default because of faster convergence than ADI
2583    
2584    checkpoint50f_post
2585    o exf totally restructured
2586      - replaced all exf_set_ routines by one generic exf_set_gen.F
2587        and made sure it's still differentiable
2588      - split exf_getffields.F into new exf_bulkformulae.F
2589      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2590      - updated adjoint/makefile and relevant verif. accordingly
2591    
2592    checkpoint50f_pre
2593     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2594          + change Evap over land. (update aim.5l_cs output)
2595     o added missing .cvsignores and made uniform across expts
2596     o changed configuration of tidal_basin_2d expt
2597     o added pkg/debug functions for tracing code in fatal crashes
2598     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2599     o new fn in pkg/monitor to stop model if solution grows too big
2600     o removed lots of single quotes from comments
2601    
2602    checkpoint50e_post
2603    o make KPP work with PTRACERS
2604     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2605       nearly a copy of kpp_transport_s
2606     - there is no analogue to SurfaceTendencyS, so I have to use
2607       gPtr(of the surface layer) instead
2608    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2609    checkpoint50e_pre
2610    
2611    checkpoint50d_post
2612    o change kpp output from multiple-record state files to single-record state
2613      files analogous to write_state.F
2614    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2615      analogous to the cg2d-related output.
2616    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2617      so that writing to internal file fn (with length 512) fails.
2618    checkpoint50d_pre
2619    
2620    checkpoint50c_post
2621    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2622    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2623    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2624    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2625    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2626    
2627    checkpoint50c_pre
2628    Merging from release1_p13:
2629    o bug fix for pkg/seaice dynamic solver
2630    o Added SEAICE_initialHEFF to pkg/seaice
2631    
2632    checkpoint50b_post
2633    o store u*,v* in gU,V instead of in guNm1,gvNm1
2634    o in order to put the momForcing out of the Adams-Bashforth:
2635      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2636      to timestep.F
2637    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2638    o re-generate output for highly sensitive test-exp:
2639       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2640    
2641    checkpoint50b_pre
2642    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2643    o corrected CPP option mismatch in exf_Bulk... functions for case
2644      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2645    
2646    checkpoint50a_post
2647    o Bug fix for merging between c50 and KPP.
2648      ikey was passed from thermodynamics to kpp_calc via
2649      common block rather than being recomputed in kpp_calc,
2650      in contradiction with new key itdkey.
2651      New key ikppkey created, and tamc.h headers updated.
2652    
2653    checkpoint50
2654    - 2nd step of merge with ecco-branch:
2655      merge changes in ecco-branch back into main trunk
2656    - bug fix in find_alpha
2657    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2658    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2659    - merged some sliced AD support routines
2660    
2661    checkpoint49
2662    merged from ecco-branch:
2663    o exf:
2664      - Enable initialisation of forcing fields to constant
2665        (runtime) values.
2666      - in exf_getffields.F
2667        Reduce i-/j-loop to interior domain, discarding overlaps.
2668        That also fixes wrong TAF-key computations for key_1, key_2
2669        with bulf formulae.
2670      - exf_init.F modify #ifdef for exf_init_evap
2671      - exf_getffieldrec.F, ctrl_getrec.F
2672        The following INT-usages are not safe:
2673          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2674          fldcount = int(fldsecs/fldperiod) + 1
2675        and were modified.
2676    o autodiff: checkpoint_lev...
2677      - updated storing for bulk formulae (some arrays were missing)
2678      - added state for seaice package
2679      - synchronized with main branch
2680    o DIVA:
2681      Modif.s in
2682      - the_main_loop.F
2683      - the_model_main.F
2684      and added cost_final_restore.F cost_final_store.F
2685      o With these changes, it is possible to fully separate
2686        the first forward run to compute the cost function (mdthe_main_loop)
2687        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2688        into separate model executions.
2689        This enables better tuning of DIVA to given queue sizes.
2690      o Loss of cost function value in consecutive DIVA runs is
2691        fixed by storing to 'costfinal' file.
2692      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2693        beginning/end of adjoint integration is accounted for.
2694      The current changes apply to TAF-1.4.26.
2695      TAF has one remaining bug, requiring one manual change
2696      (see MITgcm manual).
2697    o cal: synchronized between MAIN and ecco-branch
2698    
2699    checkpoint48i_post
2700    o Changes to restore differentiability of code w.r.t. previous tag
2701      (mostly adding new routines to make list and replacing
2702      pressure by totPhiHyd).
2703    o Updated and merged grdchk package
2704      - has both ADM and TLM checks
2705      - works for single- and multi-proc.
2706      - output cleaned
2707      - worked successfully for parallel DIVA
2708    o genmake:
2709      - Adding -platform=SP4
2710      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2711    o Modif. for DIVA:
2712      ctrl_unpack should not be called in intermediate DIVA interval.
2713      (similar thing would apply for active files such as
2714      tbar, sbar, psbar, which should not be reinitialised;
2715      only relevant for ecco-branch)
2716    
2717    checkpoint48h_post
2718    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2719    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2720    o Added SEAICE_initialHEFF to pkg/seaice
2721    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2722    
2723    checkpoint48g_post
2724    --- EOS:
2725    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2726      store total Potential in totPhyHyd for diagnostics & EOS.
2727    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2728    --- Pressure/geopotential gradient:
2729    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2730    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2731      ( changes results of global_ocean_pressure )
2732    o NLFS + z-coord.: add eta*Rho' contribution.
2733    o accurate phiHyd when using interface-W at the middle between 2 centers
2734     ( changes results of ideal_2D_oce )
2735    o includes r* 2nd term in potential gradient.
2736    
2737    checkpoint48f_post
2738    Merging from release1_p12:
2739    o Modifications for using pkg/exf with pkg/seaice
2740      - improved description of the various forcing configurations
2741      - added basic radiation bulk formulae to pkg/exf
2742      - units/sign fix for evap computation in exf_getffields.F
2743      - updated verification/global_with_exf/results/output.txt
2744    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2745      (SBO) core products, including oceanic mass, center-of-mass,
2746      angular, and bottom pressure (see pkg/sbo/README.sbo).
2747    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2748      to avoid negative values in shallow regions.
2749      - updated verification/natl_box/results/output.txt
2750      - updated verification/lab_sea/results/output.txt
2751    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2752    o Added useSingleCpuIO option (see PARAMS.h).
2753    o Updated useSingleCpuIO option in mdsio_writefield.F to
2754      work with multi-field files, e.g., for single-file pickup.
2755    o pkg/seaice:
2756      - bug fix in growth.F: QNET for no shortwave case
2757      - added HeffFile for specifying initial sea-ice thickness
2758      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2759    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2760      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2761    o pkg/seaice:
2762      - adjoint-friendly modifications
2763      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2764    
2765    checkpoint48e_post
2766    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2767    o dynamics: change definition of computational domain & adapt mom_fluxform
2768      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2769    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2770        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2771        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2772        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2773        inverted_barometer solid-body.cs-32x32x1
2774      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2775    
2776    checkpoint48d_post
2777    o in preparation for r*:
2778     a) use pre-computed gradient of hydrostatic potential:
2779        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2780     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2781        => affects results of glob_oce_pressure (different truncation error)  
2782      update output.txt of ideal_2D_oce & global_ocean_pressure
2783    
2784    checkpoint48d_pre
2785    o in preparation for r*:
2786      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2787      pass the 2 comp. of the grad. as arguments to momentum S/R.
2788      but for the moment, only used if it does not change the results.
2789    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2790    
2791    checkpoint48c_post
2792    Modifications in treatment of initial flux forcing controls
2793    to avoid extra storing of flux fields.
2794    
2795    checkpoint48c_pre
2796    o Added tidal_basin_2d experiment (currently 1D!)
2797    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2798    
2799    checkpoint48b_post
2800    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2801     (modification to pressure gradient not yet implemented)
2802    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2803      (for U & V) that are used for vertical advection of momentum.
2804    
2805    checkpoint48a_post
2806    o In preparation for r*, use temp. array to compute vertical transport
2807       in flux-form momentum pkg. => change results of few test-exp.
2808      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2809                        lab_sea, natl_box & plume_on_slope
2810    
2811    checkpoint48
2812    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2813    
2814    checkpoint47j_post
2815    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2816    o moved adexch from forward_step to addummy_in_stepping
2817    o added exch in ctrl_map_...
2818    o aveFreq.=0. at end of cost_final to avoid overwrite in
2819      reverse checkpointing loop
2820    o Yet more changes in gmredi:
2821      * adgmredi_calc_tensor
2822        avoiding all recomputation of gmredi_slope_limit
2823      * adgmredi_x/y/rtransport
2824        added flag for excessive storing to avoid recomp. of
2825        u/v/rtans, dTdx/y/z
2826        -> this is not really necessary and very memory-consuming
2827      * adgmredi_slope_psi:
2828        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2829      * gmredi_slope_limit
2830        re-activated full calculation of taperfct for case 'ac02'
2831    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2832    
2833    checkpoint47i_post
2834    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2835    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2836      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2837    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2838    o gmredi: fix few bugs.
2839    
2840    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2841    This will be a good checkpoint to plug into the ecco-branch.
2842    o few modif.'s to get latest version adjointed
2843      (mainly kick out code in ini_linear_phisurf)
2844    o modif's to run adjoint with exactConserv
2845    o case GM_BOLUS_ADVEC should be cleaned
2846      S/R gmredi_slope_psi should be cleaned
2847    o verification/carbon now has exactConserv=.TRUE.
2848    
2849    checkpoint47g_post
2850    o time-average AIM output: becomes independent from statvars time-average
2851      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2852    o After TAF bug fix:
2853      Tested adjoint of gmredi package.
2854      Tests were done with checkpoint47 rather than with latest
2855      checkpoint47f_post since the latter is broken for the adjoint
2856      verification/carbon/ contains both ADM and TLM gradient checks.
2857    Here they are, before they get changed/lost/stolen.
2858    Mostly modif.'s to fix numerical sensitivities.
2859    Gradient checks OK for
2860    - GM_taper_scheme:
2861      * clipping
2862      * ac02
2863      * linear
2864      * glw91
2865      * dm95
2866      * ldd97
2867    - GMREDI_OPTIONS:
2868      * GM_VISBECK_VARIABLE_K
2869      * GM_NON_UNITY_DIAGONAL
2870      * GM_EXTRA_DIAGONAL
2871      * GM_BOLUS_ADVEC
2872    in conjunction with data.gmredi parameters to be checked in
2873    in a few minutes under verification/carbon/code/
2874    
2875    checkpoint47f_post
2876    Merging from release1_p10:
2877    o modifications for using pkg/exf with pkg/seaice
2878      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2879        and SEAICE_EXTERNAL_FLUXES
2880      - pkg/exf CPP options EXF_READ_EVAP and
2881        EXF_NO_BULK_COMPUTATIONS
2882      - usage examples are Experiments 8 and 9 in
2883        verification/lab_sea/README
2884      - verification/lab_sea default experiment now uses
2885        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2886    
2887    checkpoint47e_post
2888    o created a tag prior to creating a branch
2889    
2890    checkpoint47d_post
2891    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2892      at the bottom boundary had an erroneous half slip boundary condition
2893    o added bottom drag and no slip boundary condition capabilities to
2894      oceanic pressure coordinates code
2895    o added new verification experiment global_ocean_pressure, this experiment is
2896      also described in the tutorial section of the manual
2897    checkpoint47d_pre
2898    
2899    checkpoint47c_post
2900    o Added a verification experiment for a global cubed-sphere ocean run
2901      -  verification/global_ocean.cubed32x32x30
2902      -  uses pkg/therm_seaice and pkg/bulk_forcing
2903    
2904    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2905    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2906      when using P-coordinate; only implemented for atmospheric config.
2907    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2908      NOTES: requires option NONLIN_FRSURF to be "#define".
2909    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2910    
2911    checkpoint47b_post
2912    Merging from release1_p9:
2913    o pkg/seaice
2914      - removed GOTO's and added taf directives
2915      - double precision constants to reduce the g77 (Linux)
2916        to F77 (SGI) differences reported in release1_p8
2917    o tools/genmake
2918      - added SGI options
2919    o verification/testscript
2920      - updated to that of checkpoint47a_post
2921    o verification/global_ocean.90x40x15/input/eedata
2922      - modified for SGI f77 compatibility
2923    o verification/lab_sea
2924      - added description of sea-ice model
2925      - added missing matlab routines
2926      - added test of thermodynamics parallelization
2927    
2928    checkpoint47a_post
2929    o new pkg: aim_v23
2930     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2931       for now, keep the same surface forcing as before.
2932     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2933     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2934     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2935    o add diagnostic of surface correction term in monitor output
2936    
2937    o bulk_force and therm_seaice
2938    - Two packages:  bulk_force (Bulk forcing)
2939      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2940    - Earlier integration from Stephaine Dutkiewicz
2941      and Patrick Heimbach.
2942    - Two ifdef statements for compile time,
2943       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2944    
2945    checkpoint47
2946    differentiable version of checkpoint46n_post
2947    o bug fix in quasihydrostaticterms
2948    o * "clean" adjoint code (in terms of extensive recomputations)
2949        can now be obtained for all GMREDI options (i.e. for
2950        - GM_VISBECK_VARIABLE_K
2951        - GM_NON_UNITY_DIAGONAL
2952        - GM_EXTRA_DIAGONAL
2953        - GM_BOLUS_ADVEC )
2954      * However, wrong gradient check problem remains unsolved.
2955      * New CPP options have been introduced for different
2956        tapering schemes
2957    o external_fields_load now part of differentiation list
2958    o pressure needs multiple storing;
2959      would be nice to have store_pressure at beginning or
2960      end of forward_step, e.g. by having phiHyd global (5-dim.)
2961      (NB: pressure is needed for certain cases in find_rho,
2962      which is also invoked through convective_adjustment).
2963    o recomputations in find_rho for cases
2964     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2965    o #define ATMOSPHERIC_LOADING should be differentiable
2966    o ini_forcing shifted to begining of initialise_varia
2967    o Incorporating QNVS line search routines into MITgcm
2968      (this is separate code, and therefore not under pkg)
2969      lsopt/, optim/
2970    o Updated verification/carbon/
2971      - #define GM_VISBECK_VARIABLE_K
2972      - GM_taper_scheme    = 'ldd97'    
2973    
2974    checkpoint46n_post
2975    Merging from release1_p8:
2976    o verification/natl_box:
2977      updating new external_fields_load routine
2978    o New package: pkg/seaice
2979      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2980      The sea-ice code is based on Hibler (1979-1980).
2981      Two sea-ice dynamic solvers, ADI and LSR, are included.
2982      In addition to computing prognostic sea-ice variables and diagnosing
2983      the forcing/external data fields that drive the ocean model,
2984      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2985      The implied surface heat flux is then stored in variable
2986      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2987      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2988      non-local transport term.  Because this call precedes model
2989      thermodynamics, temperature under sea-ice may not be "exactly" at
2990      the freezing point by the time theta is dumped or time-averaged.
2991      N.B.: fairly large differences in accuracy occur across
2992            different platforms/compilers; comparison between
2993            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2994            generated output gives:
2995       T           S           U           V
2996      C D M    c        m  s        m  s        m  s        m  s
2997      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2998      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2999      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
3000    
3001      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
3002    o GAD:
3003      - generated new common blocks to account for call of
3004        same gad routines with differing traceridentities
3005        (needed to modify tracerIdentity indices in GAD.h)
3006      - generated separate common blocks for case useCubedSphereExchange
3007        (Department of Futurology)
3008      - parameter lists to gmredi_?transport: added tracerIdentity
3009      - added new key indices to tamc.h
3010    o external_fields_load:
3011      - added this routine to TAF list
3012      - needed to make some common blocks global and additional storing
3013        along the same lines as exf package (checkpoint_lev?_directives.h)
3014    o exf:
3015      updated external forcing package
3016      - bug fixes carried over from ecco-branch
3017        (missing OBCS_OPTIONS.h in two routines)
3018      - enable easy to use "no forcing".
3019      - added exf I/O for atmospheric loading
3020      - added exf I/O for runoff data
3021      - transfered scaling between exf <-> MITgcm to exf namelist
3022    o Adding new verification experiment global_with_exf.
3023      This verification experiment is almost identical to the
3024      global_ocean.90x40x15 experiment, except that it uses
3025      the exf (and cal) package instead of the
3026      external_fields_load routine (cf README file).
3027    
3028    checkpoint46m_post
3029    o modified testscript to return -- when there are no lines of "%MON" output
3030    o added new flag "quasiHydrostatic" for QH mode
3031      and new routine quasihydrostaticterms()
3032    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
3033      New routine: mom_u_coriolis_nh()
3034    o fixed sign of non-hydrostatic metric terms in u and v equations.
3035      Depend on correct sign of gravitySign.
3036    o added work.pc* to .cvsignore in aim directories using ifc
3037    o introduced flag for controllin non-hydrostatic metric terms
3038    o removed gravitySign from PARM04
3039    o switched to g77/ifc from pgf77 in aim experiments
3040    
3041    checkpoint46l_post
3042    o made convective adjustment work with pressure coordinates:
3043     - changed the direction of k-loop in convective_adjustment.F for the
3044       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
3045     - adjusted the reference pressure k-index in convective_adjustment.F
3046     - adjusted the convection condition in convect.F (in analogy to
3047       calc_ivdc.F)
3048     - convective_adjustment no longer computes anything on the halos
3049     - removed the warnings about negative salinity from find_rho.F and
3050       find_alpha.F; instead the new routine look_for_neg_salinity, called
3051       at the beginning of find_rho, find_alpha, and find_beta, does a
3052       check of the entire slice, if CPP-option
3053       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
3054    checkpoint46l_pre
3055    
3056    checkpoint46k_post
3057    o fixed the verification/global_ocean.90x40x15 experiment:
3058     - new bathymetry (the world according to A., JMC, and M.)
3059     - new initial fields and forcing fields (*.bin files)
3060     - new POLY3.COEFFS (for the next release one should switch to a full
3061       equation of state: JMD95P or MDJWF)
3062     - fixed several errors and redundancies in the data file
3063     - experiment uses looped cells
3064     - added matlab directory with diagnostic scripts for plotting of output
3065    
3066    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
3067     - read AIM physics parameters from a file (data.aimphys)
3068     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
3069    
3070    checkpoint46j_post
3071    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
3072    o move wVel computation at the end of the time step, in S/R integr_continuity
3073    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
3074    o update timeave pkg for wVel diagnostic.
3075    checkpoint46j_pre
3076    
3077    checkpoint46i_post
3078    o Clean up AIM package (and keep the results unchanged):
3079      include CPP_OPTION and use IMPLICT NONE in all routines ;
3080      declare all the variables _RL ; use _d 0 for all numerical constants.
3081      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
3082    
3083    checkpoint46h_post
3084    o cleaned up the use of rhoNil and rhoConst.
3085      - rhoNil should only appear in the LINEAR equation of state, everywhere
3086        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
3087        and the dynamical equations are all divided by rhoConst
3088    o introduced new parameter rhoConstFresh, a reference density of fresh
3089      water, to remove the fresh water flux's dependence on rhoNil. The default
3090      value is 999.8 kg/m^3
3091    o cleanup up external_forcing.F and external_forcing_surf.F
3092      - can now be used by both OCEANIC and OCEANICP
3093    checkpoint46h_pre
3094    
3095     Added code to convert surface volume flux (fresh water) into
3096     a mass flux when using P coordinates in the ocean (OCEANICP).
3097     Note: It assumes you have set rho0=rhoConst=density of fresh water.
3098    
3099    checkpoint46g_post
3100    o Include a new diagnostic variable phiHydLow for the ocean model
3101      - in z-coordinates, it is the bottom pressure anomaly
3102      - in p-coordinates, it is the sea surface elevation
3103      - in both cases, these variable have global drift, reflecting the mass
3104        drift in z-coordinates and the volume drift in p-coordinates
3105      - included time averaging for phiHydLow, be aware of the drift!
3106    o depth-dependent computation of Bo_surf for pressure coordinates
3107      in the ocean (buoyancyRelation='OCEANICP')
3108      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
3109        Theta, Salinity, and Pressure in the parameter list. This routine is
3110        presently contained in find_rho.F. This routine does not give the
3111        correct density for 'POLY3', which would be a z-dependent reference
3112        density.
3113    o cleaned up find_rho
3114      - removed obsolete 'eqn' from the parameter list.
3115    o added two new verification experiments: gop and goz
3116      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
3117    checkpoint46g_pre
3118    
3119    checkpoint46f_post
3120    o Enable tangent linear (forward mode) gradient checks:
3121      - extended active file handling to g_... files
3122      - added TANGENT_SIMULATION to theSimulationMode
3123      - extended grdchk package accordingly
3124    o added tangent linear setup in verification/carbon/code_ftl
3125    o added adjoint setup in verification/front_relax/code_ad
3126    
3127    checkpoint46e_post
3128    o Added new equation of state -> MDJWF
3129      - EOS of McDougall et al., 2002, JAOT, submitted
3130      - caveat: the equation of state is only valid for a smaller (more
3131        realistic?) range of values than JMD95P/Z and UNESCO
3132      - added masks to the calculation of pressure in store_pressure
3133      - added more check values for density in check_eos (ini_eos.F), some of
3134        the old check values are out of the range of the MDJWF-eos, so don't
3135        expect perfect matches for those
3136    checkpoint46e_pre
3137    
3138    checkpoint46d_post
3139    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
3140      'OCEANICP', also initialised field pressure correctly in ini_eos in the
3141      case of pressure coordinates. eosType='JMD95Z' in
3142      combination with buoyancyRelation='OCEANICP' now causes an error.
3143    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3144      in find_alpha/beta.
3145    checkpoint46d_pre
3146    
3147    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3148      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
3149    
3150    checkpoint46c_post
3151    o Changes necessary for ocean in p-coordinates
3152     -  Added new buoyancy relation = 'OCEANICP'
3153     -  Added new parameters = gravitySign (this used to be contained inside
3154        the factor dRdZ which I added when we first switched to R coordinates).
3155     X GM/Redi is not compatible (yet)
3156     X bottom drag and no-slip need to be debugged.
3157    checkpoint46c_pre
3158    
3159    checkpoint46b_post
3160    o Added new equation of state -> JMD95Z and JMD95P
3161      - EOS of Jackett and McDougall, 1995, JAOT
3162      - moved all EOS parameters into EOS.h
3163      - new routines ini_eos.F, store_pressure.F
3164    o Added UNESCO EOS, but not recommended because it requires
3165      in-situ temperature (see JMD95)
3166    o Modified formatting for knudsen2.f in utils/knudsen2 and added
3167      unesco.f to be used with POLY3
3168    checkpoint46b_pre
3169    
3170    checkpoint46a_post
3171    o Added (atmospheric) pressure loading
3172      - new field in FFIELDS.h, etc...
3173      - new cpp flag ATMOSPHERIC_LOADING
3174    o Changed hFacC to _hFacC in calc_phi_hyd.F
3175    o Added SHORTWAVE_HEATING to some files for consistency
3176    checkpoint46a_pre
3177    
3178    checkpoint46
3179    further merges from release1_p5
3180    o new ctrl package
3181      - adopted from ECCO environment to enable optimization
3182      - added Eliassen Palm fluxes to controls
3183    o added Eliassen Palm flux controls to gradient check package
3184    o cost package
3185      - Compatible with new ctrl package
3186      - added Eliassen Palm cost hooks
3187      - modif's of existing cost functions
3188    o Adjoint-related bug fixes in kpp:
3189      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
3190      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
3191    o autodiff package
3192      - flow directives:
3193        + new for S/R do_the_model_io
3194        + enhanced for S/R checkpoint
3195        + new gmredi.flow
3196      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
3197        disable adcommon.h/g_common.h by default.
3198      - fixed problem for adjoint of global_max
3199    o modified verification/carbon/
3200    o New setup for adjoint of global_ocean
3201    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
3202    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
3203    o incorporated hooks for sponge layer code (external_forcing.F)
3204    
3205    checkpoint45d_post
3206    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
3207    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
3208      (affects plume_on_slope "cg2d" output)
3209    o add new parameter deltaTfreesurf for free-surface time stepping
3210    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
3211    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
3212    o change phiMin in exp1 (to agree with documentation)
3213    o add new flags:
3214     - T,S forcing inside/outside Adams-Bashforth
3215     - turn off temp,salt advection and/or forcing
3216     - for each tracer, define internal flag for multiDimAdvection & A-B
3217    o monitor: change definition of KE to check conservation of Energy
3218    
3219    checkpoint45c_post
3220    o Removed f90 comments ("!")
3221    o Modified initialisations to enable exf package for MITgcm
3222      (without invoking ECCO_PACKAGE).
3223    o modifications to gradient check package (Martin Losch)
3224      - enable centered differences
3225      - modified format of standard output
3226    
3227    checkpoint45b_post
3228    o cleaned exchange calls in cg2d
3229    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
3230    o included CPP option SINGLE_LAYER_MODE in thermodynamics
3231      to configure barotropic setup (Martin Losch)
3232    o moved some initialisations within bi,bj loop in dynamics
3233      (TAF flow dependency)
3234    o in initialise_varia, moved call packages_init_variables
3235      before convective_adjustment_init
3236      (corresponding adjustment of TAF tape initialisation).
3237    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
3238    
3239    checkpoint45a_post
3240    o compute Rho over the whole domain (extend iMin,jMin indices)
3241    o specific exchange for X-slice domain (case Ny=1)
3242    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
3243    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
3244    
3245    checkpoint44h_post = checkpoint45
3246    o Fix to restore differentiability:
3247      place at which packages_init_variables is called in
3248      initialise_varia is crucial for reverse control flow.
3249    o modifications in GMRedi to enable stable adjoint
3250      (corresponding modif's in thermodynamics, dynamics)
3251    o added missing hook for sponge layer code in external_forcing
3252    o modified test cost functions
3253    o storing in gad_advection (plus removal of write(0,*)!
3254    o missing headers TR1.h added in convective_adjustment routines
3255    o errorMessageUnit set non-equal zero in eeboot
3256      (conflict on some platforms, e.g. IBM SP3)
3257    o modified carbon verif.
3258    
3259    checkpoint44h_pre
3260    o vertical grid option: allow to put the Interface at the middle between
3261      2 cell-centers ; replace delZ in pkg/kpp by drF.
3262    o GM Advective form: Tracers are advected using the residual transport (=
3263      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
3264    
3265    checkpoint44g_post
3266    o fix surface correction term in multiDimAdvection (affects plume_on_slope
3267      results) ; ifdef missing in thermodynamics.F
3268    
3269    checkpoint44f_pre,checkpoint44f_post
3270    o added PTRACERS package
3271      This allows an arbitrary number of passive tracers to be integrated
3272      forward simultaneously with the dynamicaly model.
3273      + Implemented so far:
3274        - basic forward algorithm (time-stepping, advection, diffusion, convection)
3275        - I/O and checkpointing
3276        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
3277      + Not implemented so far:
3278        - KPP
3279        - OBCS
3280      + No specific example supplied (yet) but global_ocean.90x40x15 has the
3281        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
3282        line in data.pkg.
3283      + This package is disabled by default since it increases storage.
3284    
3285    
3286    o testscript: added -cleanup option
3287    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
3288                 b) enable to filter 2D fields.
3289    
3290    checkpoint44e_pre,post
3291    o re-wrote convective adjustment to use pre-calculated weights
3292      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
3293      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
3294      Original calls to convect() still in place.
3295    
3296    chkpt44d_pre,post
3297    o added missing EXCLUDE_MONITOR flags
3298    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
3299      (incompatible typ in MIN/MAX expressions caused problems
3300      on IBM SP3)
3301    o in genmake added variable MAKEDEPEND
3302      plus resetting for case SunOS
3303    o added timer_stats.c routine for IBM SP3
3304    o removed variables in dynamics
3305    !!! I forgot to create tag chkpt44d_pre !!!
3306    !!! But chkpt44d_pre = chkpt44c_post    !!!
3307    
3308    o real fresh water flux implemented with non-linear free-surface.
3309    
3310    chkpt44c_pre,post
3311    o few fix (mask in shap_s2, EmPmR in external_field_load,
3312      USE_NATURAL_BCS in solve_for_P);
3313    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
3314    
3315    checkpoint44b_pre/_post
3316    o merge of relevant stuff from the ecco-branch:
3317      - genmake: removed $S64 overwrite for case SunOS
3318      - pkg/exf: update and corrections for field swapping and obcs
3319      - pkg/ecco: parameter lists for the_model_main, the_main_loop
3320                  harmonized between ECCO and MITgcm
3321      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
3322                      updated checkpointing_lev... lists for obcs
3323      - model/src: minor changes in forward_step, plot_field
3324                   added directive for divided adjoint in the_main_loop
3325      - pkg/mdsio: added mdsio_gl_slice
3326    
3327    o check parameters & config (chkpt44a_pre,post)
3328    o OBC and NonLin_FrSurf.
3329    
3330    checkpoint44
3331    o fix bug in mom_vi_del2uv
3332    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
3333    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
3334    o update AIM experiments (NCEP input files)
3335    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
3336    o added some stuff for AD
3337    
3338    checkpoint43
3339    o added two new advection tests
3340    o added global 4x4 degree ocean test
3341    o added test of H&S94 with free surface on cube
3342    o some final mods for gradient check, adjoint,...
3343    
3344    checkpoint42
3345      Fixed AD-related problems:
3346    o Store directives up-to-date with re-arranged Adams-Bashforth
3347      (mainly thermodynamics.F)
3348    o New store directives for multi-dim. advection schemes
3349      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
3350      * new common block and key passkey
3351      (mainly gad_advection.F)
3352    o Modified store directives for split of dynamics/thermodynamics
3353      for the case ALLOW_KPP
3354    o Cleaned argument list for timestep_tracer.F
3355    
3356    checkpoint41
3357    o re-formatted/added comments in prologues of key subroutines
3358      to work with protex
3359    
3360    checkpoint40
3361    o moved calc_gs, calc_gt and calc_tr1 back to model/src
3362    o added FLT (floats) package from Arne along with demo. experiment
3363    o re-arranged Adams-Bashforth scheme for tracers to allow easier
3364      implementation of forward-in-time forcing terms
3365    o more mods for non-linear free-surface including new variable
3366    o modified multi-dim method to work on cube
3367    o bug fix in KPP (from DM)
3368    
3369    checkpoint40pre9
3370    o added DST advection schemes
3371    o fix MPI bug on SGI's
3372    o modifications for non-linear free-surface
3373    o fixed conditionals for fixed flow/passive tracer only mode
3374    o added tension/strain form of stress tensor
3375    o changes to commenting of arguments for TAF/TAMC
3376    o added/updated many matlab scripts
3377    o added multi-dimensional advection method for tracers
3378      
3379    checkpoint40pre8
3380    o new package rw/
3381      Added method for dumping intermediate local arrays:
3382      mdsio_writetile - same as mdsio_writefield except works from inside
3383                        bi,bj loop
3384      mdsio_writelocal - same as mdsio_writetile except works for local
3385                         arrays
3386      write_local_r? - higher-level wrapper for mdsio_writelocal
3387      Controlled by diagFreq. Defaults to zero (ie. no dumps)
3388      Example given at end of mom_vecinv.F that dumps some local arrays.
3389    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
3390      control flux-form versus vector invariant code.
3391      Switch is runtime flag vectorInvariantMomentum (defaults to false)
3392      or genmake -DISABLE ...
3393    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
3394      (additional storing is now needed for case vecinv;
3395      currently nothing implemented to switch this storing off
3396      in case fluxform is used since no CPP flag available).
3397    
3398    checkpoint40pre7
3399    o bug fix in dynamics.F
3400      calc_viscosity called before k=1,Nr loop.
3401    o added some #ifdef's ALLOW_PASSIVE_TRACER
3402    o cleaned initialisations in ctrl_map_ini
3403      related to TAF
3404    
3405    checkpoint40pre6
3406    o split dynamics into thermodynamics & dynamics
3407    o corresponding split of calc_diffusivity into
3408      calc_diffusivity, calc_viscosity
3409      (kpp_calc_diff, kpp_calc_visc).
3410    o Added diffkr, kapgm to control variables
3411    o bug fix in gmredi_slope_limit for ldd97
3412    
3413    checkpoint40pre5
3414    o proper initialization of Adams-Bashforth time stepping
3415      + uses forward step for very first step of model (iter=0)
3416    o re-generated *all* output since almost all output is modified by this
3417      change (sorry but we've been putting this one off for about 2 years)
3418      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
3419        *not* regenerated since they are already out of date and I don't
3420        want to create the impression that they are suddenly working.
3421    o removed KAP stuff for DEC's
3422    o modified/added many .cvsignore files in */code and */input
3423    o added new expt "solid-body.cs-32x32x1"
3424      + this uses an alternative form of ini_curvilinear_grid.F which
3425        is not necessarily any better than the current one...
3426    
3427    checkpoint40pre4
3428    o added re-initialisations of utrans,vtrans,rtrans in
3429      calc_common_factors which are crucial for TAF.
3430    o extended iMin,jMin range for calc_common_factors,
3431      calc_diffusivity
3432    o added option ALLOW_PASSIVE_TRACER
3433    o a few minor updates and fixes
3434    
3435    checkpoint40pre3
3436    o created calc_gtr1.F for gad package
3437    o split the_main_loop and re-introduced forward_step
3438    o some recomputations of nIter0 for TAMC
3439    
3440    checkpoint40pre2
3441    o Updated to latest branch of AJA, JMC
3442    o Added gradient check package
3443    o Added routines for passive tracer handling
3444    o Added carbon sequestration sensitivity experiment
3445    
3446    checkpoint39
3447     o Modifications and fixes to support TAMC
3448       (mainly missing or wrong directives)
3449     o Corrected common blocks when fooling TAMC to produce adjoint I/O
3450       in addummy_in_stepping
3451     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
3452     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
3453     o Included following packages:
3454       cal: calendar
3455       exf: external forcing
3456       ecco: essential routines to control use of cal, exf
3457             (NB: this is not the full ECCO environment)
3458     o disabled some packages by default in genmake
3459    
3460    checkpoint38
3461     o see notes_c37_adj.txt
3462     o corrected wrong layer index in external_forcing_t
3463     o replaced the_main_loop/forward_step by the_main_loop
3464     o removed forceoutput from write_state
3465       (replaced criteria for initial/final state)
3466     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
3467    
3468    checkpoint37
3469     o mdsio.F routine split and packaged in pkg/mdsio
3470       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
3471        used unless genmake -disable=mdsio)
3472     o allow a more precise surface-geopotential gradient for the atmosphere
3473       taking into account the change in space of Alpha (=1/rho) at the surface.
3474     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
3475       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
3476     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
3477       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
3478       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
3479     o Time-Average diagnostics defined as a pseudo package "timeave".
3480     o pickup files : old pickup (before c35) did not work with new code (c35
3481       and after) unless activating 2 commented lines in initialise-varia.
3482     o Non-Hydrostatic pickup file Pb fixed.
3483     o bug with Rigid-lid version (since c35) fixed.  
3484    
3485    checkpoint36
3486     o implement Crank-Nickelson barotropic time-stepping
3487     o recover Time-Average diagnostics
3488     o fix Pb in checkpoint (PR#19)
3489     o AIM become a standard package ; clean unused CPP_kees
3490    
3491    checkpoint35
3492     o subtantial rewrite of dynamics.f
3493     o allows staggered time-stepping
3494     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
3495     o added bottom drag (linear + quadratic)
3496    
3497    checkpoint34
3498     o Modified exchange routines for correct reverse simulation.
3499     o Added verification output to comply with bug fix in impldiff.F
3500       as of c33 (exp2, natl_box).
3501     o Corrected store directives in dynamics.F
3502     o Corrected array boundaries in impldiff.F
3503     o Corrected array dimensions in gmredi.
3504       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
3505     o Added routine GLOBAL_SUM_INT to global_sum.F
3506     o Added mdsio_gl.F for ECCO purposes.
3507    
3508    checkpoint33
3509     o Fixed bug in lower BC in impldiff.F
3510     o Fixed confusion about units of forcing arrays in FFIELDS.h
3511       namely Fu,Fv,Qnet,Qsw,EmPmR:
3512       - Removed verification/natl_box/code/external_fields_scale.F
3513         (did not differ from that in model/src)
3514       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
3515         (see FFIELDS.h for description)
3516       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
3517         kpp_calc.F and kpp_transport_t.F
3518       - Removed model/src/external_fields_scale.F and calls to it
3519       - verification/natl_box uses flux data with "atmospheric" sign so
3520         a special version of external_fields_load.F is used to
3521         change the data as it's read in. This way, the arrays
3522         have the right units and signs at all times tha a user could
3523         possibly use them.
3524     o Corrected genmake to delete a temporary file during configuration
3525    
3526    checkpoint32
3527     o Scaling of forcing fields moved from external_forcing.F to
3528       external_fields_scale.F, called directly after loading fields.
3529     o Surface relaxation terms added to surface tendency fields in
3530       extra subroutine.
3531     o impldiff.F changed to avoid storing by TAMC of huge intermediate
3532       fields.
3533     o Changes in GMRedi to comply with packaging structure.
3534     o Modifications and bug fixes in KPP package.
3535     o Verification experiment for KPP added (verification/nat_box/)
3536    
3537    checkpoint31
3538     o Packages interface brought in line with defined standard
3539       -> new routines packages_...F
3540       -> changes in initialise_fixed.F, initialise_varia.F
3541       -> enables initialisation interface for ECCO package
3542     o Rescaling of external forcing fields immediately after read
3543       (removed from external_forcing.F)
3544       -> new: surface_fields_scale.F
3545       -> affects ini_foorcing.F, external_fields_load.F
3546     o Computation of surface tendencies before tendency updates.
3547       -> new: external_forcing_surf.F
3548     o Change of variable names useGMRedi, useKPP, useECCO
3549     o Further changes in dynamics.F, impldiff.F for TAMC
3550     o Tested for experiments 0, 2, 4.
3551       - not yet tested for GMRedi.
3552       - not yet tested for KPP.
3553    
3554  checkpoint30  checkpoint30
3555   o Updates for OBCs   o Updates for OBCs
3556   o New experiment for test OBCs (internal_wave)   o New experiment for test OBCs (internal_wave)

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