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revision 1.171 by jmc, Sun Jul 13 20:32:42 2003 UTC revision 1.949 by mlosch, Thu Jan 31 09:58:41 2008 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/mypackage:
8      - add example of read/write pickup for state-var ;
9      - add entry points to the main code for state-vars diags & write-pickup.
10    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
11      transitions for useExfYearlyFields
12      - add new subroutine that determines the file to read from for
13        use*YearlyFields = .TRUE. and .FALSE.
14      - add a verification experiment to global_with_exf that tests
15        useExfYearlyFields with USE_EXF_INTERPOLATION defined
16    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
17      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
18      subroutines (which could be generated from a template, because they are
19      almost identical), for now they are included in obcs_prescribe_read.F for
20      simplicity
21    o pkg/exf:
22      - add a little more diagnostic to exf_interp_read (in analogy to
23        mds_read_field, can be turned off with debugLevel < debugLevA=1)
24      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
25        ugly but fast by unrolling short inner loops, inserting a unroll=8
26        directive in routine lagran, and splitting a loop and making do while the
27        outermost loop (the latter requires the intoduction of index arrays)
28    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
29    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
30      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
31    o verification/seaice_obcs: updated for restart test and latest options
32    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
33      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
34      for now this is only available for the C-grid code and also within
35      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
36    
37    checkpoint59m
38    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
39      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
40    o gad_som : fix flux output (& diagnostics) to have same units as other  
41      advection scheme fluxes (was previously multiplied by deltaT).  
42    o added verification/seaice_obcs both to test seaice open boundaries
43      and to provide an example matlab scrpt for generating them
44    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
45    o pkg/salt_plume: clean up salt_plume_frac.F to
46      remove redundancy in PlumeMethod 1 and 4
47    o pkg/kpp: added saltplume diagnostics
48    o pkg/obcs and pkg/seaice:
49      - do not set uice and vice to zero when OB*icefile are unspecified
50      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
51      - moved seaice tracer obcs after call to seaice_growth
52    o pkg/salt_plume: added various options for salt plume depth
53      criterion and for vertical distribution of the salt
54    
55    checkpoint59l
56    o pkg/ptracers: new version of ptracers pickup:
57      read meta file and write only fields which are needed to restart.
58      ( same logic as main pickup file ; also using pickupStrictlyMatch )
59    o pkg/seaice:
60      - add timescale for melting due to warm mixed layer as a means of
61        setting SEAICE_availHeatFrac more conveniently
62      - add a CPP-flag/runtime parameter check for flooding algorithm
63      - reformulated availHeat in seaice_growth.F to be independent of AREA
64    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
65      unit changes
66    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
67    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
68      SX vector computer.
69    o pkg/seaice:
70      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
71        seaice forcing fields can now be read only through pkg/exf
72      - removed some unused halos
73    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
74    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
75      or U/VICE from U/VWIND before computing U/VSTRESS
76    
77    checkpoint59k
78    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
79      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
80    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
81      all experiments pass when compile with un-initialised var. checking option.
82    o added pkg/salt_plume
83    o script to test restart (for now, in MITgcm_contrib/jmc_script)
84    o pkg/seaice: new read/write pickup version.
85      read meta file and write only fields which are needed to restart.
86      ( same logic as main pickup file ; also using pickupStrictlyMatch )
87    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
88    o lab_sea.hb87: modify the domain & update output.hb87.txt :
89      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
90      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
91      process. Fixed here by closing the domain at the Northern boundary.
92    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
93    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
94      a set of consecutive levels in/from a 3-D array.
95    o pkg/ptracers:
96      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
97      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
98    
99    checkpoint59j
100    o in pkgs: dic, obcs, offline, rbcs:
101      standard way to compute coeff. for time interpolation between 2 time reccords
102      which retains full precision (& make results less dependent on compiler).
103      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
104    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
105      packages instead of reading ice cover and wind speed separately
106    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
107     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
108      to allow to compile customized code before the update)
109    o cleaning-up:
110      - fix CPP instruction syntax in pkg/obcs
111      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
112        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
113      - fix some threads issue in IO parts.
114    o pkg/dic:
115      - add tons of "_d 0" (--> much better testreports !)
116       and then update outputs of tutorial_global_oce_biogeo
117    o pkg/mom_fluxform:
118      add a special version of momentum advection intended to conserve momentum
119      next to a bathymetry step or a coastline edge. (default = off = #undef)
120    o new read/write pickup version:
121      - for now, only implemented for main (mdsio) pickup file.
122      - write out only what is needed to restart; merge pickup_nh , pickup_ph
123        and main pickup together.
124      - read meta file; read only what is needed to restart; stop if a field
125        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
126        if it make sense (even if the restart is not perfect).
127      - if no meta file, assume that pickup to read corresponds exactly to
128        a pickup that would currently be written.
129      - read pickup written in the old format (until checkpoint59i) if it
130        recognizes an old meta file (no field-list).
131      - add a meta file in exp. which starts from a pickup: 2 cases:
132        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
133         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
134        b) a meta file describing the content of the associated pickup file
135         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
136    o pkg/mdsio & pkg/rw:
137      - new routine to read a meta file ; new set of routine to read
138        Multiple-fields file (with meta file).
139    o added open boundary conditions capability for seaice
140        HSNOW, HSALT, UICE, and VICE
141    
142    checkpoint59i
143    o adjoint:
144      * fix multiDimAdvection adjoint
145        (partial recomputation problem by TAF for fVerT(:,:,kDown)
146        and comlev1 size definition (maxpass vs. max. number of tracers)
147      * verification/global_ocean.90x45x15 adjoint now tests
148        NLFS and multiDimAdvection using DST3 (=30)
149      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
150    o pkg/kpp: add "_d 0" to real constant (if missing);
151      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
152      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
153    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
154      for internal parameters related to restart process (formerly from PARAMS.h)
155      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
156    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
157      as argument. (only atm2d & obcs write_pickup have not yet been updated)
158    o pkg/monitor:
159      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
160      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
161      - account for deep Atmosphere factor and density factor (anelastic)
162    o added open boundary conditions capability for seaice HEFF and AREA
163    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
164      thermodynamics
165      - requires a little reorganization, which affects the testreport results
166        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
167        so that now the conservative form is tested
168      - add a few comments
169    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
170    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
171    o add new diagnostics to seaice: advective, diffusive fluxes (only for
172      multidim-advection, for scheme 2 they are not filled) and transports,
173      thermodynamic growth rates
174    o change units of EmPmR (inside the code, + within coupling interface)
175      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
176      Affects results @ truncation level (cg2d match) and update output of
177       experiments: lab_sea(6), global_ocean.90x40x15(10),
178      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
179      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
180      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
181      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
182    
183    checkpoint59h
184    o pkg/exf:
185      - improve vectorization by moving if-statement out of loops in
186        exf_mapfields, exf_radiation
187      - exf_bulkformulae.F: introduce 2D fields and vectorize code
188    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
189    o testreport:
190      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
191        monitor & update offline_exf_seaice exp. output.
192      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
193    o pkg/seaice:
194      - bug fix in the evp solver: boundary conditions were affected be
195        masking of zMax/zMin (changes results)
196      - minor bug fix in boundary conditions in seaice_calc_strainrates
197        (changes results for no_slip)
198      - seaice_lsr.F: make interpolation of eta dependent on boundaries
199      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
200      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
201        stress formulation and no-slip boundary conditions
202    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
203      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
204    o pkg/seaice: a first HSALT time stepping equation has been checked in
205    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
206      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
207      without requiring DO-IF statements
208    o pkg/thsice:
209      use continuous power-law function for partition of energy between lateral
210      melting/freezing and thinning/thickening ; old code using step function
211      still available with #undef THSICE_FRACEN_POWERLAW
212      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
213    o testreport: change AD testing : check against results/output_adm.txt
214      using same scripts as for forward test.
215    
216    checkpoint59g
217    o adjoint testing: in preparation for changing testreport:
218      - output format: cost and grad written on separated lines
219      - ad output results in directory "results" (instead of "results_ad")
220    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
221    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
222    o pkg/ecco: allow user defined cost function contributions
223    o testreport:
224      Allow to choose (per experiment) the list of tested output variables
225       and the main variable (used to issue a pass/FAIL ) ;
226      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
227      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
228      Also modify printing of summary:
229       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
230       b) echo the list of tested variables in the individual summary.txt of
231          each experiment.
232    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
233      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
234      (but still depend on the tile decompostion of the domain).
235    o pkg/seaice: change a discretization detail to make the B-grid code
236      "more symmetric". This change is likely to remove all "ridges/leads" that
237      where quasi-aligned with the grid in B-grid solutions. It may also be
238      the solution to the stress coupling issues with the B-grid.
239    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
240      remove .cvsignore from input dir. (since testreport no longer run here).
241    o pkg/thsice:
242     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
243     - fix reshaping of sea-ice just after advection:
244       melt all the ice only if ice-volume is too small.
245     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
246       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
247     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
248    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
249      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
250    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
251      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
252      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
253      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
254      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
255      -> update output.txt
256    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
257     this affects truncation error: -> update output.txt of exp:
258      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
259      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
260    
261    checkpoint59f
262    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
263    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
264      a bounded range (in forward mode)
265    o pkg/ecco, ctrl, autodiff and mom_common:
266     internal parameter controls, completements of implementations
267    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
268    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
269      (not seem any difference in testing results).
270    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
271       at face corners.
272    o pkg/generic_advdiff:
273     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
274      loop range indices for computing vertical advection tendency
275      and do the calculation in the interior only (no overlap) ;
276      for now, only implemented for SOM advection (to save CPU time).
277     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
278    o exch2 adjoint
279      First set of changes:
280      - add exch2 hand-written adjoint templates
281      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
282        This will require cleanup in pkg/autodiff/*.F
283        (changed routines currently kept separate in verif. code/)
284      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
285        that used to hide exch2 or cubed-sphere specific code
286        (commented via 'cph-exch2')
287    o pkg/seaice
288      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
289    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
290       output of global_ocean.cs32x15.thsice .
291    
292    checkpoint59e
293    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
294      for B-grid vector (not yet tested) and C-grid vector (<- only used
295      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
296    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
297      (#ifdef ALLOW_SALT_PLUME)
298    o gather_2d/scatter_2d: removed halo regions
299    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
300      scheme and the corresponding test case (under front_relax dir). For now,
301      only available with Skew-flux form and not yet tested in realistic set-up.
302      adjoint: store directives updated, but gradient checks deteriorated,
303      so maybe GM/Redi adjoint is now broken.
304    o seaice adjoint
305      * add AREA, HEFF, HSNOW as control variable
306        (should not change lab_sea results)
307      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
308    o pkg/seaice:
309      * added computation of saltFlux in seaice_growth;
310        For time being, sea ice salinity is assumed constant
311        contribution of snow flooding to freshening of sea ice is neglected.
312        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
313        defaults to 0.0 in order to maintain backward compatibility.
314        Typical values for SEAICE_salinity are 4 to 10 g/kg.
315      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
316      * added SEAICE_availHeatFrac, which specifies fraction of surface level
317        heat content used to melt or grow ice
318      * commented out cap of HICE: it helps keep ice thinner
319      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
320      * applied OBCS T/S mask to HEFFM sea ice mask
321    
322    checkpoint59d
323    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
324     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
325     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
326    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
327     and change default value of parameter "GM_Small_Number";
328     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
329       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
330       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
331    o pkg/ecco: cost function when applying pkg/smooth to controls
332    o pkg/ctrl: add forcingPrecond run time parameter
333    o pkg/seaice:
334     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
335     - fix bug in metric terms of u-equation in LSR solver (implicit part),
336       changes verification/lab_sea
337     - rearrange implicit part of u-equation in LSR solver to make it easier to
338       read, understand, and debug. This causes changes at the truncation level.
339     - fix (serious) bug in the boundary conditions (sign error in the implicit
340       part) of the LSR solver. Changes all LSR results.
341     - fixed problem with HSNOW initialization to avoid thick snow when AREA
342       is initilized with small values - does not change lab_sea results.
343     - added HsnowFile initialization capability
344    o pkg/smooth: addition to model/src and pkg/ctrl so allow
345     initialization of pkg/smooth and application to control vector
346    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
347    o dependencies: pkg/profiles requires pkg/cal
348    o pkg/profiles:
349     - added option ALLOW_PROFILES_GENERICGRID
350         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
351         that interpolation information (grid points and coefficients) is provided
352         within the netcdf input files.
353         -> sample matlab scripts can be found in MITgcm_contrib/gael
354         that allow you to prepare netcdf input files.
355     - also modified: cleaner include statements, cleaner error print statements,
356       cleaner stops when error, and more tests of the netcdf input files consistency.
357    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
358    o pkg/seaice:
359     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
360       requires a new routine: seaice_diagnostics_fill.F
361     - make sure that seaice does not move if not forced (pressure replacement
362       method, Hibler and Ip, 1995), changes results
363     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
364     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
365       It is turned off by default (=-1.), because it changes the results.
366     - make it possible to read AREA from a file, too.
367    
368    checkpoint59c
369    o add S/R and diagnostics for oceanic mixed-layer depth
370    o move GMRedi call after all vertical mixing schemes (including KPP)
371    o pkg/thsice:
372     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
373      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
374    o pkg/obcs:
375     - bug fix for balance code
376    o pkg/seaice:
377      - allow values of SEAICE_elasticParm > 1
378      - add new parameter SEAICE_evpTauRelax as an alternative
379        to SEAICE_elasticParm
380      - make lsr boundary conditions free slip (by default), changes result
381      - add code for no slip boundary conditions for lsr
382      - set minimum of zeta to zero (and not 4e8) (changes results)
383      - add a cap on AREA after advecting AREA if seaice_growth is not called
384    o change calculation of Visbeck K:
385      - no longer depend on tapering scheme; instead, compute slope (limited
386        by GM_maxSlope). this is equivalent to what was comuted before with
387        clipping or linear tappering.
388      - fix vertical averaging (wrong by 1/2 level)
389      - leave the old version (but will not be maintained) within
390        #ifdef OLD_VISBECK_CALC / #endif
391      - update output of exp. ideal_2D_oce
392    o change error catch in calc_r_star to improve vectorization
393    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
394      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
395    o adjoint:
396      Re-organized adjoint checkpointing according to Matt Mazloff
397      (but with modifs/completions/cleanups)
398      Storing is now bundled into large arrays to optimized I/O
399      (and second step in cleanup of the_main_loop)
400    
401    checkpoint59b
402    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
403      - export/import (between ocean & coupler) fields needed for ocean DIC.
404    o pkg/seaice:
405      - get rid of three more exchanges seaice_calc_viscosities (required
406        different loop boundaries in seaice_lsr and seaice_ocean_stress)
407      - bug fix in seaice_ocean_stress (update of lab_sea required)
408      - reduce loop boundaries to necessary minimum also in seaice_evp
409      - go back to the old way of computing deltaC/Z as the adjoint likes that
410        better
411    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
412      passive tracer to an Age Tracer) + update output.txt
413    o pkg/exf:
414      - implement A-grid / C-grid selection for wind-stress input files.
415      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
416      for now, in exf_bulk_largeyeager04.F only :
417      - change implementation for case where windspeed + 2. components wind-stress
418        are read-in. AND use rhoConstFresh to convert evap.
419    o pkg/seaice:
420      - use correct EXCH_UV for wind-forcing (on A-grid).
421      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
422        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
423    o pkg/exf:
424      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
425      EXF_INTERPOLATION:
426      - merge global_with_exf/code version of exf_interp_read.F
427        to the main code ;
428      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
429        reading the file ; Important: This options needs to be defined to recover
430        previous code.
431        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
432      - no longer loose real*8 precision along the way when using exf_iprec=64.
433    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
434      - change discretisation of evp-solver in order to avoid another exchange
435        (changes lab_sea) and clean up a little
436      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
437        help the adjoint (this also changes the results slightly)
438      - add a few "_d 0" where they had been missing in seaice_evp.F
439      - cleaning up: remove unused seaice_calc_rhs.F
440    o pkg/exf: some cleaning-up:
441      - change various "constants" into runtime parameters
442      - cleaned-up Large&Yeager04 routine which should eventually
443        replace exf_bulkformulae.F (changed names of S/R and CPP)
444        and merged various ALLOW_ATM_WIND options
445     only used with thsice pkg (in thsice_get_exf.F):
446      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
447        which are used when useStabilityFct_overIce=TRUE (= the default)
448      - change default values of ice & snow emissivity and scale downward LW
449        by ice & snow emissivity.
450    o pkg/thsice:
451     fix few little problems, in thsice_calc_thickn.F:
452      - growth vertically (and not laterally) if iceFrac == iceMaskMax
453      - melt only laterally if hIce < hThinIce (as the comments say)
454      and in thsice_extend.F:
455      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
456      - start to form ice as soon as the minimum ice-volume is reachable.
457     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
458      and cpl_aim+ocn
459    o pkg/kpp
460     - move computation of surface related input fields to KPP into a new
461       subroutine kpp_forcing_surf.F
462     - remove wrong (within bi,bj loops) EXCH calls.
463     - little cleaning (add argument myThid in last position, cvs header ...)
464     - for now, fix conservation problem by exchanging KPPviscAz (may not
465       be the best fix)
466    o pkg/seaice
467     - check for inconsistent evp parameter/cpp-flag combination
468     - remove leftover errIO flat for obsolete name list error handling
469    o OpenAD
470     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
471    
472    checkpoint59a
473    o pkg/seaice: some parameter clarifications and a little bit of clean up
474    o pkg/thsice: rename run-time parameters:
475       himin       -> hIceMin
476       himin0      -> hThinIce
477       hihig       -> hThickIce
478       i0          -> i0swFrac
479       transCoef   -> bMeltCoef
480       frac_energy -> fracMelting
481      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
482       with default values (for now) that do not change the results.
483      remove old version of thsice vars advection in pkg/seaice.
484    o in FFIELDS.h:
485      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
486      - make pLoad & sIceLoad always available (but still only used if
487         ATMOSPHERIC_LOADING is #define).
488    o pkg/kpp: replaced _KPP_RL with _RL
489    o bug fixes for vertical diffusivity computations when both KPP and
490        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
491        are no longer updating the vertical diffusivity array
492        (passed as argument) but are (re-) setting those arrays.
493    o pkg/seaice: fix bug in evp solver, while doing that
494      - change (improve?) discretization of stress computations for both
495        cgrid-lsr and evp solver
496      - add a new routine to compute strain rates
497      - the above changes lab_sea results
498      - add no slip conditions for evp solver (off by default), lsr-version
499        may follow
500      - fix exchange for shear at Z-points (does not change lab_sea)
501      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
502        (to force the user to pick a time step since there is not "safe" way
503        of choosing it)
504      - add principal stress diagnostics
505      - rearrange fields for evp a little to avoid having to call a: too many
506        exchanges and b: exchanges for stress trensor components which we do
507        not have.
508      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
509        of evp, complete rewrite for lsr case (latter is does not yet work
510        in all cases)
511    o pkg/kpp: add code to have mixing in shelf ice caverns
512      - add myThid to all kpp routines (long overdue)
513    
514    checkpoint59
515    o pkg/exf:
516      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
517        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
518      - move exf header files from lower_case.h to UPPER_CASE.h ;
519        add missing cvs Header & Name
520      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
521      - add namelist param. selectStressGridPosition, exf_monFreq
522      - retire many _CLIM routines, and remove data.exf_clim
523        + params moved to data.exf
524        + climsst, climsss now handled by exf_set_gen, i.e.
525          climss?period=0 refers to constant field,
526          climss?period=-12 to monthly forcing
527      - split up namelists in data.exf
528    o pkg/seaice:
529      - remove seaice_exch and seaice_exch_uv
530      - remove superfluous exchange of theta
531      - add myThid to seaice_budget_ocean/ice
532      - add new interface for atmospheric wind forcing (C-grid only)
533        + new routine
534        + two new field (taux, tauy for stress over ice)
535        + removed one global field (DAIRN) for C-grid case only
536    o pkg/thsise
537      - 2nd set of modifs for thsice adjoint in conjunction with exf
538    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
539    
540    checkpoint58y_post
541    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
542      vertical diffusivity, similar to that in MOM4; turned on using
543      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
544      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
545    o Added capability for 3D specification of background vertical diffusion
546      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
547      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
548      "data" file that contains the 3D vertical diffusivity coefficients.
549    o ice dynamics (pkg/seaice) with thsice thermodynamics:
550      - add code within pkg thsice to advect & diffuse sea-ice fields
551      similar to (and will replace) what has been added in  seaice_advdiff.F,
552      but: - conserving Mass, Heat & Salt.
553           - better when using non-linear advection scheme (not yet fully tested)
554           - can also be used in atmospheric set-up (for now, only the diffusion).
555    
556    checkpoint58x_post
557    o IO option for global-file compact format:
558      - add options when generating topology (utils/exch2/matlab-topology-generator)
559      - add I/O capability (pkg/mdsio).
560      - adapt utils/matlab/rdmds.m to read this format.
561      for now long-line format not yet supported by pkg/mdsio (& exch2).
562    o shelfice: add a few diagnostics
563    
564    checkpoint58w_post
565    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
566      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
567      (and replace horiVertRatio in NH code).
568      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
569                         and tutorial_plume_on_slope (sensitive to truncation)
570    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
571      directly to drive seaice model (C-grid only)
572    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
573     - reintroduce computation of wind from stress,
574     - compute tau (in exf_bulkformulae.F) from windstress averaged to
575       mass points to avoid tau = 0
576     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
577    o rdmnc.m: make it work with "global" files created with gluemnc
578    o rdmnc.m : some improvements in dealing with singleton dimension
579      (tested on all testreport mnc output files).
580    o genmake2: disable pkg/profiles if netcdf test fails.
581    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
582    o move call to cal_readparms up to make calendar parameters/variable available
583      to all packages
584    
585    checkpoint58v_post
586    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
587      useDynP_inEos_Zc tested.
588    o pkg/exf: changes to properly interpolate/mask/scale initial fields
589    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
590      and portions thereof.  See read_cs.txt for description and examples.
591    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
592      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
593      following the great-circle arc between those 2 points.
594    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
595      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
596    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
597     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
598     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
599     - still needs work (not working with some options ; efficiency to improve)
600       and serious testing.
601     - use this scheme for temperature & salinity in 2 advection test exp.:
602       advect_xy & advect_xz, respectively.
603    
604    checkpoint58u_post
605    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
606    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
607    o testreport: add option "-skipdir" to skip some test.
608    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
609      momentum calculation.
610    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
611    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
612      remove checkpoint.F and the_correction_step.F (no longer used);
613      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
614    o add option (linFSConserveTr) to correct for tracer source/sink due to
615      Linear Free surface
616    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
617    o pkg/thsice: fix reading mnc-pickups
618    
619    checkpoint58t_post
620    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
621    o pkg/mdsio:
622     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
623       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
624       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
625     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
626     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
627       either MDS_READ_FIELD or MDS_WRITE_FIELD )
628     - new S/R (to replace MDSWRITEMETA), which allows to write more
629       informations (variable names, time ...) to meta files.
630     - modify rdmds.m to give back the meta file content.
631    o pkg/diagnostics: change vertical interpolation to be safer, and more
632       flexible (define p-levels to interpolate to in data.diagnostics);
633      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
634       diagnostic pointer.
635    o pkg/seaice: more cleaning up of seaice_growth, added many comments
636    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
637    o fix multi-category seaice:
638     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
639       SEAICE_MULTICATEGORY
640     - fix short wave heat flux
641    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
642       and allow to use EVP solver. Change forward lab_sea: test both EVP
643       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
644    o Initial check-in of lab_sea adjoint
645      (very similar to natl_box_adjoint/code_seaice)
646      * used C-grid and EVP solver
647      * used KPP, GM/Redi
648      * uses inAdExact=.TRUE.
649      * gradient checks fail for both ADM and TLM
650        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
651        f.d. gradients actually seem more problematic than ADM, TLM gradients;
652        issue is related to forward mismatch between g77 an ifort
653    o pkg/seaice: overhaul of thermodynamics
654     - growth.F and groatb.F are replaced by new routine seaice_growth.F
655     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
656     - move a few global fields out of SEAICE.h into seaice_growth.F and
657       make them 2D (FICE/QNETO/ ...)
658     - remove FO (it is the same as QNETO)
659     - introduce a few local fields to avoid modifying external fields such
660       as atemp, etc.
661    
662    checkpoint58s_post
663    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
664      changed exf_set_gen.F so that
665        genperiod=0 means input file is one time-constant field and
666        genperiod=-12 means input file contains 12 monthly means
667    o CG2D: use pre-computed solver main-diagonal (stored in common block);
668      this affects truncation error ; generate new output file for exp. which
669      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
670        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
671        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
672        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
673        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
674        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
675    o start implementation of deep-atmosphere and anelastic formulation
676    o verification: remove 2nd copy of input files and use script "prepare_run"
677      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
678    o mom_common/vecinv/fluxform: fix a few initialisation isssues
679    o profiles: fix for multithreaded case
680    
681    o diagnostics: rename few diags:
682      s/'PRESSURE'/'RCENTER '/g
683      s/'TICE    '/'oceFreez'/g
684      s/'TAUX    '/'oceTAUX '/g
685      s/'TAUY    '/'oceTAUY '/g
686      s/'SWFLUX  '/'oceQsw  '/g
687      s/DIFx/DFxE/g
688      s/DIFy/DFyE/g
689      and add few ocean-forcing diagnostics:
690      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
691    o modifications to pkg/seaice/growth.F and budget.F, which change results of
692      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
693      as actual snow thickness.  It now refers everywhere to effective snow
694      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
695    
696    checkpoint58r_post
697    o modifications to pkg/seaice/growth.F, which change results of
698      lab_sea experiment: fixes pertain to melting snow over open water, to
699      masking EVAP under sea ice, and to using the correct AREA variable for
700      computations of EVAP, PRECIP, HSNOW, and GHEFF
701    o add ability to read bathy, salt, and theta using MNC (off by def)
702    o add flooding algorithm and advection of HSNOW for pkg/seaice;
703      both are turned off by default and do no change any results
704    o seaice advection with pkg/thsice: a step toward the use of non-linear
705      advection scheme, but #ifdef or commented out for now (requires more EXCH).
706    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
707      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
708      in natl_box (affects results @ truncation level: update output.txt)
709    o multi-threading and IO:
710      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
711      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
712        (needed to work with SingleCpuIO): tested in all verif. exp.
713    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
714      affects the results (but none of the verification test uses this scheme).
715    o Adding some pkg/diagnostics capability to pkg/seaice
716      (will certainly be subject to changes)
717    o ctrl: adding new control variables:
718      lwflux, lwdown, evap, snowprecip, apressure, runoff
719    
720    checkpoint58q_post
721    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
722      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
723      high_res_cube configuration by 4% on Columbia.
724    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
725      add (in global_with_exf/code) a version of EXF_INTERP_READ without
726      dynamical allocation (seems to work in multi-threaded).
727    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
728      single CPU io) so that TAF does not have to see EESUPPORT.h
729    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
730    
731    checkpoint58p_post
732    o obcs: stop if obcs is used with useCDscheme = .true.
733    o shelfice:
734     - fix a sign error so that no slip at shelfice interface works
735     - remove stop for combination non-hydrostatic code and shelfice. That does
736       not mean, that the results are correct, but at least they are numerically
737       stable
738    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
739    o added adjoint exch routined for all exch*3d* routines
740      and updated flow directives
741    
742    checkpoint58o_post
743    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
744      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
745    o change controling S/R for writing pickup file (new S/R do_write_pickup)
746      and clean-up reading/writing of pickup files.
747    o fix local version of read/write pickup (NH part) in rotating_tank/code
748    o simplify EXCH interface:
749     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
750     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
751    o added the regrid package
752    o shelfice:
753     - add a simple boundary layer scheme to reduce noise
754     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
755    
756    checkpoint58n_post
757    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
758       local variable (not in common block).
759    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
760      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
761      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
762        to work with SingleCpuIO.
763    o add "_d 0" to real constant of pkg/cfc subroutines ;
764       update exp. cfc_exemple & tutorial_cfc_offline output files.
765    o multi-threading and IO:
766      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
767        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
768      - barrier before and after reading.
769      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
770      - avoid using MDS_WRITELOCAL for LAND pkg output.
771      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
772        common-block variables ; Allows multi-threading with master-thread IO.
773    o change default MAX_NO_THREADS from 32 to 4 ;
774      and stop cleanly when MAX_NO_THREADS is too small.
775    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
776    
777    checkpoint58m_post
778    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
779       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
780    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
781       keep global_ocean.90x40x15 (for AD testing) with former secondary test
782       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
783    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
784        add MITgcm_tutorials (= code + all the tutorials)
785    o ecco, option to compute cost for total ssh (mean+anom)
786    o consistent with addition of ptracer and ssh in pkg/profiles
787    o profiles: adding ptracer and ssh
788    o testreport: change multi-test output-file name
789      (from output.txt.{name} to output.{name}.txt)
790    o profiles: now ok for mutli-tiles case
791    o seaice: add 4 parameters for different advection schemes for area,
792      (effective) seaice thickness, enthalphy, and snow height. Their default
793      is the standard parameter SEAICEadvScheme
794    o calc_gw:
795     - add cosFacU in zonal viscous flux (harmonic.visc.).
796     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
797       of tutorial_plume_on_slope.
798    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
799    o calc_gw: true flux-form, account for horizontal grid spacing.
800      update rotating_tank results, but not plume_on_slope (affected at
801      truncation level, 11 digits).
802    
803    checkpoint58l_post
804    o calc_gw:
805     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
806     - remove side-drag for now (need to fix it); update plume_on_slope results.
807     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
808    o commit code to make SST/SSS weights spatially variable
809      (based on either variable in-situ or variable initial T/S weights)
810    o pkg/ecco:
811      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
812        now based on horizontally varying weights wthetaLev, wsaltLev
813      * cost_averagesflags now returns year indices in addition to day, month
814      * sflux balance is performed on annual basis
815        (sflxumm, sfluxmm2, bal_sfluxmm)
816      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
817        including separate counting and multipliers
818    o pkg/rbcs
819      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
820    
821    checkpoint58k_post
822    o testreport:
823     - always build in dir. "build" (if not there, mkdir build instead of building
824       & running in input)
825     - run in dir run (if it exists), in build otherwise.
826     - call prepare_run (if input/prepare_run exists)
827     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
828    o pkg/exf modifications to interpolation and rotation routines for more
829       reasonable treatment of North Pole singularity: for tracers North Pole
830       value is set to northernmost zonal-mean value, for zonal velocity it is
831       set to zero, and for meridional velocity it is set to northernmost value.
832    o pkg/exf/exf_check_range.F
833     - add tile index to diagnostics and move stop statement to the very
834       end of the routine.
835    o pkg/diagnostics: (diagnostics_main_init.F)
836      define title of isomorphic variables according to the current config.
837    o pkg/thsice with pkg/seaice dynamics:
838    - fix domain of computation (interior only, required for exf) and do exchanges
839    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
840    o towards a standard way of dealing with multi-threading in MONITOR
841      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
842    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
843       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
844    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
845    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
846    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
847       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
848    o tracer advection:
849     - clean-up and simplify calc_common_factors.F
850     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
851       advection subroutine (but still not used within DST advection S/R)
852    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
853    
854    checkpoint58j_post
855    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
856      from file (collects calls previously in FORWARD_STEP)
857    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
858    o adjoint store dir. adjusted accordingly
859    o genmake2
860      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
861    
862    checkpoint58i_post
863    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
864      on wind stress (SEAICEstressFactor defaults to 1.)
865    o Total number of Timers is finite (<=40): comment out 2 non-essential one
866      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
867    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
868      on CS-grid: no longer loosing mass.
869    o exf & curvilinear-grid: no longer modify longitude xC & xG.
870    o pkg/ggl90: fix sloppy output and fix a bug
871    o pkg/seaice: added SEAICEuseEVPpickup parameter
872      - Set to false in order to start EVP solver with
873        non-EVP pickup files when using SEAICEuseEVP
874      - fix sign error in diffusion in seaice_calc_rhs
875    
876    checkpoint58h_post
877    * Modifications for bottom topography control
878      o replace hFacC by _hFacC at various places
879      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
880      o add non-self-adjoint cg2d_nsa
881      o update autodiff support routines
882      o re-initialise hfac after ctrl_depth_ini
883      o works for 5x5 box, doesnt work for global_ocean.90x40x15
884    * Adding verification for 5x5 box (4-layer) bottom topography control
885    
886    checkpoint58g_post
887    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
888       used for mean seasonal cycle, mean diurnal cycle); add an example
889       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
890    o pkg/ggl90:
891      - add parameter (minimum surface kinetic energy)
892      - fix bug (avoiding division by zero)
893    o couple pkg/thsice to pkg/seaice:
894      - modify advection in seaice to accomodate new scalar fields to be advected
895      - only muliDimAdection scheme work with seaice/thsice
896      - mapping of thsice-variables to seaice-variables, back and forth
897      - does not break the verification experiments, but does not give the
898        desired results either
899    o pkg/seaice
900      - make (default) second order advection a bit less confusing?
901    
902    checkpoint58f_post
903    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
904      to pkg/seaice):
905      - new routines thsice_map_exf and thsice_get_exf provide the interface
906      - add an additional formal parameter to thsice_solve4temp
907    o pkg/exf:
908      - add new fields wspeed, snowprecip (to be able to couple to thsice)
909      - correct Stefan-Boltzmann constant
910      - new parameter for longwave surface emittance
911      - separate some stuff from exf_bulkformulae into new routines  
912        exf_radiation, exf_wind
913      - add new parameters and constants: longwave emissivity for ocean, ice
914        and snow, evaporation parameters over ice
915      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
916        either wind from stress or stress from wind
917    o pkg/thSIce:
918    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
919    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
920       and THSICE_CALC_THICKN
921    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
922    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
923      to make debugging easier.
924    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
925    o pkg/bulk_force:
926      - clean-up comments and parameters ;
927      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
928    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
929      generate new output for test-experiment: aim.5l_cs.thSI
930    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
931      testreport accordingly
932    
933    checkpoint58e_post
934    o SEAICE_CGRID adjoint done
935    o R_STAR adjoint implemented.
936      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
937      * need to sort out init. of h0facc, etc.
938    o Make pkg/profile fully independent of ecco,cost, etc. stuff
939      to be able to use it in pure forward.
940    
941    checkpoint58d_post
942    o upgrade simple test-experiment to tutorial example:
943     step.1: duplicate the experiment and (step.2) will remove the old copy.
944      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
945      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
946      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
947      tutorial_global_oce_biogeo    <- copy of dic_example
948      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
949      tutorial_plume_on_slope       <- copy of plume_on_slope
950      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
951      tutorial_global_oce_optim     <- empty for now (David ?)
952      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
953     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
954    o correct a sign problem in cost_scat.F
955    o obcs and ptracers: fix boundary conditions for advections schemes
956      with larger stencil
957    o thsice adjoint: start
958    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
959      completeness
960    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
961      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
962    o ptracers adjoint:
963      * avoid extensive recomputatations
964      * fix missing re-init. of gptr (missed by TAF)
965    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
966      me to turn off the excessive output to STDOUT that this package produces
967    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
968      and add those terms in Vector-Invariant formulation.
969    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
970      if the control period (xx_hfluxperiod etc) is 0
971    o in profiles pkg, clean routines and fix details
972    o in ecco pkg, reading ssh data:
973      fix problem in case the model does not start at iter0=0
974    o fix mnc-pickup/restart for ptracers
975    o new package prifiles:
976      code to compute profile-based cost by Gael Forget
977      (modifs in ecco, ctrl, autodiff)
978    o Benign bug fix in initialization (spotted by M. Mazloff) of
979      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
980    
981    checkpoint58c_post
982    o adjoint: finish NLFS adjoint and provide reference output in
983      verification/global_ocean.90x40x15/results_ad_nlfs
984    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
985      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
986      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
987      with SEAICE_CGRID defined.
988    o move calendarDumps from "data" to "data.cal" and clean-up the code
989      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
990    o add useEXF & useCAL flags (for now, set in hard-coded way)
991    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
992      (were missing in NH mode, and wrong in quasihydrostatic mode).
993      waiting for Chris updated version of calc_gw to add those CALLs.
994    o fix bug in quasihydrostatic S/R ;
995      add a test for this option: global_ocean.90x40x15.qshyd
996    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
997      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
998    o add on/off flag useOffLine for package OFFLINE
999    o seaice:
1000      - modify advection so that it works also on the C-grid
1001      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1002        problem in multi-tile runs with C-grid
1003      - add flags for clipping ice velocities and/or masking solver forcing
1004      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1005        C-grid solver
1006      - added a few comments to seaice_diffusion.F
1007      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1008        are now exclusive)
1009      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1010        required re-ordering the code a little:
1011       + make DAIRN global variable (defined in SEAICE)
1012       + move computation of the viscosities eta and zeta into a new separate
1013         routine (because I need to recompute them in seaice_ocean_stress.F)
1014    
1015    checkpoint58b_post
1016    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1017      update output.txt of exp. aim.5l_cs.thSI
1018    o various mnc cleanups and improvements:
1019      + shrink lookup tables by factor of ~4
1020      + better error reporting when running out of lookup space
1021      + able to handle longer path/file names (up to 500 chars)
1022    o adjoint:
1023      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1024      - TBD: "hidden" mom_vecinv recomp. in dynamics
1025    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1026     (allow to differentiate between forcing components using new integer flags:
1027      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1028     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1029    o ecco
1030      - enable trend removal from SSH anomaly obs.
1031    o adjoint
1032      - a fix for PmEpR when #undef EXACT_CONSERV
1033      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1034      - try to fix "hidden" recomp. in forward_step for NLFS
1035        (NLFS seems broken sometimes after I checked it in)
1036    o seaice:
1037     - add c-grid version of the dynamic solver:
1038       + three new routines that are the c-grid substitute lsr, dynsolver
1039         and ostres
1040       + put a few fields that were local to dynsolver into global common
1041         blocks, so that I can move the computation of stresses etc into
1042         seaice_lsr (saves coding but may break the adjoint).
1043     - replace more hardwired parameters by runtime parameters
1044     - add ice masks that mask the rhs of the implicit solvers where there
1045       is no ice (commented out in seaice_dynsolver, because i am not sure
1046       if this works properly), eventually this should replace the clipping
1047       of ice velocities in seaice_dynsolver to +/-40cm/s.
1048    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1049      include it only where its needed
1050    o move balancing of fluxes before the call of external_forcing_surf
1051    o seaice:
1052      - correct units of turning angles (now they are really in degrees)
1053      - move computation of GWATX/Y out of main routine into dynsolver
1054      - initialize GWATX/Y in seaice_init
1055    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1056      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1057    o seaice: add runtime flags for turning angles (default to zero)
1058    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1059      and trend from exf forcing and ctrl control adjustments
1060    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1061      (since checkpoint57x_post)
1062    o change the default rotation period to 86164.s = the Earth rotation
1063    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1064      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1065    o seaice advection: add code for choosing between the default (2nd order
1066      central differences) and multiDim advection schemes provided by
1067      pkg/generic_advdiff
1068    o seaice:
1069      - removed all references to SEAICE_GRID.h fields from
1070        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1071        (cubed-sphere configuration will change a little)
1072      - grid computations in seaice_init are obsolete now.
1073      - cleaned up code a little so that is easier to read (hopefully).
1074      - added new (better?) discretizations of default advection and diffusion
1075        (turn on with SEAICEuseFluxForm)
1076      - replace 1 in 3d global fields by kSurface in growth.F
1077      
1078    checkpoint58a_post
1079    o seaice:
1080      - bug fix in advect.F
1081    o shelfice:
1082      - separate shelfice load anomaly from pload (breaks with time
1083        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1084        Its default is 0., but it may be computed more cleverly from (unknown)
1085        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1086        done offline. A good approximation of the pressure load anomaly is
1087        necessary to avoid large initial adjustment processes underneath
1088        deep-reaching shelfice.
1089      - small fix in ISOMIP shelfice_thermodynamics
1090      - add more sophisticated thermodynamics of Hellmer (1989), this is
1091        now the default
1092      - give a few constants more intuitive names
1093    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1094      if bulk formulae are used in long integration (especially EmPmR). Turn
1095      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1096      if balancePrintMean, the imbalance that is substracted is printed to
1097      STDOUT.
1098    o fix bug (typo) in obcs_apply_eta.F
1099    o add a new package shelfice which enables us to model the circulation
1100      underneath shelf-ice with draughts of hundreds of meters.
1101     - works
1102     - to do: + include improved thermodynamics
1103              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1104                instead of new field kTopC
1105              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1106                instead of new field R_shelfIce and new code in ini_depth.F
1107                and ini_mask_etc.F?
1108              + adjust vertical mixing schemes?
1109    o seaice pkg:
1110     - add a cpp-flag to include a simple formula for a salinity dependent
1111       freezing point of sea water at the surface
1112     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1113       meridional stresses are now different (and hopefully correct)
1114    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1115       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1116       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1117    o pkg/diagnostics: add options and parameters for regional-statistics
1118       diagnostics ; define regions by reading a region-mask from a file
1119       (might add other options later)
1120    o pkg/bulk_force:
1121     - add option and parameters to use AIM surface-flux formulae.
1122     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1123       others forcing fields (defined in PARM05, parameter file "data") are loaded
1124       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1125     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1126     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1127     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1128       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1129     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1130    
1131    checkpoint58
1132    o add "--embed-source" option to genmake2 which, when the supporting
1133      tools can be compiled (as determined by genmake2) will turn on the
1134      embed_files package which then embeds the entire MITgcm source code
1135      (*.[fFhc] + Makefile) used for the build within the executable
1136      - requested by CNH but off by default
1137      - adds a paltry <9MB to the mitgcmuv executable in most cases
1138      - only writes the output when useEMBEDSRC in eedata is true
1139    o clean up 3-dim. relaxation codes:
1140      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1141      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1142      * Thanks to Tom Haine for testing!
1143    
1144    checkpoint57z_post
1145    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1146      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1147    o fix the pickup behavior for obcs in combination with ptracers
1148    o fix a bug in ptracers_external_fields_load
1149    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1150      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1151    o transfered surface NH pressure to eta field (if exactConserv).
1152    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1153         and update lab_sea output.txt file.
1154    o completing 3-dim. relaxation code: additional term
1155         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1156      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1157      * At compile time, in "EXF_OPTIONS.h" set
1158          #define  ALLOW_CLIMTEMP_RELAXATION
1159          #define  ALLOW_CLIMSALT_RELAXATION
1160      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1161          tauThetaClimRelax3Dim = 15552000.0,
1162          tauSaltClimRelax3Dim  = 15552000.0,
1163      * 3 cases:
1164          1) Use a constant-in-time 3-dim. field
1165          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1166          3) Real-time relax. to time-evolving prescribed field
1167    o Adding Laplacian-type smoothness constraint on
1168      initial and boundary (forcing) controls (ic, bc)
1169      * enable at compile-time via
1170        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1171      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1172      * Absolute scale somewhat unclear so far
1173      * no area weighting was included since no other cost term does so far
1174    
1175    checkpoint57y_post
1176    First step for a NLFS adjoint
1177    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1178    o new init. routines for calc_r_star, calc_surf_dr
1179    o still need to deal with ini_masks_etc
1180    o testreport seemed happy
1181    checkpoint57y_pre
1182    
1183    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1184    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1185    o add new offset feature to offline pkg (plus minor cleanup)
1186    o cfc fixes for final year of integration
1187    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1188      be in GCHEM_OPTIONS).
1189    
1190    checkpoint57x_post
1191    o fix testreport Pb in multiple test experiment.
1192    o cleanup our namelist syntax in verification:
1193      - make it more F95 standards compliant (some work still needed)
1194      - allows the vast majority of our tests to work with gfortran
1195    o Non-Hydrostatic:
1196     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1197     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1198    o Allow to apply AB on T,S rather than on AB(gT,gS):
1199     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1200     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1201       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1202     - need a "clever" read_pickup to restart from the other AB formulation
1203    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1204    o remove some unused variables (reduces number of compiler warnings)
1205    o adjoint
1206      * Disable useVariableViscosity for adjoint for time being
1207        (there are a number of extensive recomputations)
1208      * Initialize certain variables needed for adjoint
1209    
1210    checkpoint57w_post
1211    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1212                 fix the singleCpuIO RS version of MDSWRITEFIELD
1213       and add a WARNING if using globalFiles=T with multi-processors.
1214    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1215      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1216    o tracer advection scheme:
1217      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1218       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1219       was not very convenient).
1220      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1221       (further tests needed for the implicit DST & Flux-Limiter schemes).
1222    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1223      and sRef for convenience, handy, when you want to initialize
1224      ptracers in a large domain with a constant non-zero value. Also,
1225      untangle ptracers_init.F a little.
1226    
1227    checkpoint57v_post
1228    o change dome exp. to use variable viscosity in side-drag terms.
1229    o remove all the files from the cfc_offline test since they are now
1230      incorporated into tutorial_cfc_offline which has been producing
1231      identical results for a few days of testing
1232    o add new parameter: sideDragFactor to enable half-slip-side BC
1233      and change side-drag S/R to use viscosity from mom_calc_visc
1234      (can switch back by setting sideDragFactor=0.); affects results at
1235      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1236       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1237    o vorticity & strain are now computed without masking, to account for
1238      no-slip-side BC in variable viscosity calculation ; mask is applied
1239      anyway later on, before computing advection/coriolis terms.
1240    o modify exp4 to test new obcs support for reading from external files
1241      and for passive tracers
1242    o fix behavior of ptracers_monitor when monitor output is written to a
1243      netcdf-file; still not independent of monitor.F (writes in the same
1244      file).
1245    o change default value of tRef (put a uniform, meaningful value for ocean
1246      & atmos) and initialize sRef (was missing, as Martin mentioned).
1247    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1248      to be proportional to enstrophy dissipation length.  Thus,
1249       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1250      This is now consistent with Smagorinsky and with the manual.
1251    
1252    checkpoint57u_post
1253    o OBCS and PTRACERS: add open boundary support for passive tracers
1254      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1255        OB-values from file; this is not different from the way theta and salinity
1256        are treated
1257      - however, Orlanski-radiation conditions are not supported, and the model
1258        will stop if you use pTracers and Orlanski at the same time.
1259      - beefed up the rountine obcs_external_fields_load: now only those open
1260        boundary values are overwritten with values from files for which there
1261        are really files, otherwise the OB-fields remain untouched. This makes
1262        it possible to use different OBs at different ends of the domain (as
1263        with EXF)
1264    o reduce number of exch calls in shap_filt (s2).
1265    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1266      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1267    
1268    checkpoint57t_post
1269    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1270    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1271      same truncation, independent of the face number: affects affects several
1272      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1273    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1274      note that biharmonic viscosity + no-slip was not tested in any experiment.
1275    o fix bug in non-linear free-surf side-drag ; generate new output for
1276      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1277    o make mnc honor the writeBinaryPrec flag for most kinds of output
1278    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1279    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1280      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1281    o add brackets in multi-terms sum to get same truncation, independent of
1282      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1283      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1284    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1285      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1286      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1287      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1288      Suggested values of viscosity parameters found in mom_calc_visc.
1289      Many new viscosity diagnostics available.
1290    
1291    checkpoint57s_post
1292    o Add clearing-house for viscosity calculations, mom_calc_visc and
1293      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1294      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1295      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1296      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1297      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1298      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1299      ViscAhStrain and viscAhTension are now retired.
1300    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1301    o In response to JMC's bug report, genmake2 now ignores any soft-links
1302      that it finds in the *current* directory when searching for files.
1303      Soft-links found in any other source directories will still work as
1304      they did before.
1305    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1306      a C routine to unlimit the stack size
1307    o mnc-ify pkg/aim snapshot vars
1308    o mnc-ify pkg/land as requested by Daniel
1309    o various changes to mnc including:
1310      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1311      - output can now be grouped so that all files within a group
1312          change the ITER portion of their names in lock-step together
1313      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1314          and works with both EXCH1 and EXCH2 (but needs more testing)
1315      - writing works for all verification test cases w/ g77 on Linux
1316    
1317    checkpoint57r_post
1318    o make MNC variable initialization happen earlier
1319    o add diagnostics for (almost) each term of the momentum Eq.
1320    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1321    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1322    o remove MINIMAL_TAVE_OUTPUT option ;
1323      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1324    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1325      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1326    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1327    o add time-dependent SST, SSS control
1328    o cost terms in ecco/ modularized (new cost_generic.F)
1329    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1330    o new infrastructure for seaice model vs. obs misfits in seaice/
1331      * driver from the_main_loop.F is seaice_cost_driver.F
1332      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1333      * gradient check in Exp. 6a of natl_box_adjoint/
1334    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1335      (see README file)
1336    
1337    checkpoint57q_post
1338    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1339    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1340      - bug was reported by Jean-Michel and Ian Fenty
1341    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1342      update exp. cpl_aim+ocn output.
1343    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1344      Needed for high-res. runs with large global files
1345      to be able to limit tapelev size
1346    o Changed some tests for adjoint:
1347      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1348      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1349      * global_ocean.90x40x15/ back to default 3-level checkpointing
1350    o Modifications to enable scripted COMMON to MODULE conversion
1351      * verification/OpenAD/code/ has necessary scripts and description;
1352      * converts, compiles and runs successfully;
1353    
1354    checkpoint57p_post
1355    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1356    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1357      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1358    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1359    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1360      (was already the case for dissipation with mom_vecinv,
1361       and also the case for grad.PhiHyd when staggered-timeStep)
1362      This will allow to put dissipation out-off the AB time-stepping.
1363     Unfortunately, affects truncation error. Update output of exp. that "fails"
1364      (cg2d matching number) and leave the others for later: front_relax(10),
1365      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1366      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1367    
1368    checkpoint57o_post
1369    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1370      (2) its ready to be documented during the 20050801 DocFest
1371    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1372      for ideal_2D_oce and lab_sea on linux_ia32_g77
1373    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1374      in global1x1_tot/code_seaice_adj to access indices 32, 33
1375      (worth another tag)
1376    
1377    checkpoint57n_post
1378    o adding precip control xx_precip 32
1379    o adding swflux control xx_swflux 33
1380    o Replacing 10 forcing penalty cost routines by 1 generic.
1381    o Implementing partitioning in time-mean and variable adjustment
1382      for atmos. state.
1383    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1384    o in natl_box_adjoint:
1385      * updated exp 1 to 10
1386        (but does not have time-mean vs. variable split results yet)
1387    o updated global1x1/*_seaice_adj/
1388      to incorporate latest changes
1389    o enable useSingleCpuIO for mdsio vector routines
1390      (applies in particular to tapelev I/O)
1391    o removed inefficient K-loop in all active_file*control*.F
1392    
1393    checkpoint57m_post
1394    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1395      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1396    o pkg/exch2: filling of face-corner halo regions is optional
1397      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1398    
1399    checkpoint57l_post
1400     tag before updating tutorials (pre-release-2)
1401    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1402       for output and interpolation of input fields onto model grid)
1403    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1404       Affects results of exp. rotating_tank ; update output.txt.
1405    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1406          and taking the square quantity and/or using a fraction-weight field.
1407    o fix aim_diagnostics_init.F mate numbers.
1408    o add mnc output capability to diagnostics/diagstat and update
1409      our cvsignore files for the ACSII output generated
1410    
1411    checkpoint57k_post
1412    o lab_sea now uses diagnostics package and provides a suite of
1413      new EXF diagnostics output.
1414    
1415    checkpoint57j_post
1416    o exf
1417      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1418        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1419        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1420      * extended diagnostics output
1421        - now includes all EXF variables
1422        - hs, hl moved to common block
1423        - separate S/R for diagnostics, called after ctrl vector is added
1424        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1425        - EXFqnet contains true Qnet (i.e. includes qsw)
1426      * updated verif. lab_sea, global_with_exf
1427      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1428        to ensure that diagnostics sees a true EXFqnet
1429    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1430    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1431      several times with different frequencies.
1432    o mnc-ify the thsice package as requested by Daniel Enderton
1433      - the monitor--MNC output needs work
1434      - many attributes need to be added (most are currently blank)
1435    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1436      - many attributes need to be added (most are currently blank)
1437    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1438    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1439    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1440      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1441         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1442    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1443     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1444    
1445    checkpoint57i_post
1446    o Diagnostics package was changed: diagnostic allocation is now deactivated
1447      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1448    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1449      add 1rst Order upwind vertical Shear.
1450    o add a quick fix for A/B checkpointing in OFFLINE mode
1451    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1452      end-run around the C/Fortran linking horror in eesup/src/timers.F
1453    o added pkg/runclock: allows user to terminate run based on wall clock
1454    o added non-hydrostatic scaling parameter: nh_am2
1455    o pkg/my82: futile attempt to make results compiler-independent by adding
1456      some "_d 0", etc. no effect.
1457    o for mnc output, fill the 'T' coordinate var with myTime and create a
1458      separate 'iter' variable for iteration count
1459    o pkg/diagnostics:
1460      add new capability: output of Global/Regional & per-level statistics ;
1461      tested against monitor output (including land & thSIce) on various exp.
1462    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1463    
1464    checkpoint57h_done
1465      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1466      data.diagnostics, data.gchem, data.ptracers) is done.
1467    
1468    o pkg/diagnostics: prepare for Global/Regional statistics.
1469      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1470    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1471      and rename it: DIFFERENT_MULTIPLE
1472    
1473    checkpoint57h_post
1474    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1475    o pkg/diagnostics: change output frequency, now in seconds (instead
1476      of Nb of iterations). This requires to change data.diagnostics.
1477    checkpoint57h_pre
1478    
1479    o in mnc, let the user create the output dir if both mnc_outdir_date
1480      and mnc_outdir_num are false
1481    o add fflags() to pkg/diagnostics which allows one to specify, on a
1482      per-file basis, the file precision [default behavior is unchanged]
1483    o added diagnostics to pkg/kpp, including computation of mixed layer
1484      depth based on a temperature/density criterion
1485    o updated verification/natl_box to test the new pkg/kpp diagnostics
1486    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1487    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1488    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1489      not mnc -- this mistake was found by JMC and is now corrected
1490    
1491    checkpoint57g_post
1492    o add Adams-Bashforth 3rd Order time stepping:
1493      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1494      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1495    checkpoint57g_pre
1496    
1497    o make lambda[Theta,Salt]ClimRelax spatially varying
1498      (default remains spatially uniform constant based on tau)
1499    o added new control variables
1500      * init. uVel, vVel, etanN
1501      * lambda[Theta,Salt]ClimRelax
1502    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1503      (suggested by G. Forget)
1504    
1505    checkpoint57f_post
1506    o add parameter "baseTime" = model base time = time at iteration zero
1507      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1508      account for baseTime shift
1509    o move Coriolis arrays from PARAMS.h to GRID.h
1510    checkpoint57f_pre
1511    
1512    o mnc-ifying the seaice package
1513    o introduced an alternative length scale calculation for use in the limiting
1514      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1515    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1516    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1517      as well as grad(vort3).  Made it compatible with both approximate form
1518      for the cubed sphere and full form of these gradients.  Added flag
1519      useFullLeith to select between approximate and full form.  
1520    o add "d0" in getcon.F to reduce differences between compilers/platforms
1521      update output.txt of exp. fizhi-gridalt-hs
1522    o change port_rand funtion to allow to set the seed.
1523    o fix obscure MNC bug involving conversion between reals and integers
1524      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1525        new version is now more standards-compliant
1526    o adjoint-related modifications
1527      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1528      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1529      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1530    
1531    checkpoint57e_post
1532    o Adding eddy stress controls a la Ferreira et al.
1533    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1534    
1535    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1536      update output.txt of exp. fizhi-gridalt-hs
1537    o add more "Z" dimensions and associated coordinate vars to MNC
1538    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1539    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1540      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1541      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1542      months and years.  Requires pkg/cal.
1543    o diagnostics: add pickup functionality
1544      - off by default for backwards compatibility
1545      - current version only uses MDSIO -- MNC will be added
1546    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1547    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1548    
1549    checkpoint57d_post
1550    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1551    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1552      output from the diagnostics package
1553    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1554    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1555      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1556    o add coordinate variables to the MNC output from the diagnostics package
1557    o change MNC-flags default value: true when useMNC=TRUE
1558    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1559      the ability (off by default) to read the grid information using MNC
1560    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1561    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1562    o do snap-shot diagnostics at the middle of the time-interval (instead of
1563      at the end).
1564    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1565      new test for AIM with thSIce + slab-ocean
1566    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1567    o move state variable diagnostics to the beginning of the time step ;
1568      (note: still needs some work specially for snap-shot diagnostics)
1569      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1570    
1571    checkpoint57c_post
1572    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1573    o generate new output.txt files on faulks with g77 & the new -ieee option
1574    checkpoint57c_pre
1575    
1576    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1577      update output.txt of exp. global_ocean.90x40x15
1578    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1579      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1580    o add saltFlux(+File) forcing capability with periodicExternalForcing
1581    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1582    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1583    o improvements for the MNC output from DIAGNOSTICS:
1584      - correct handling of the unlimitied dimension
1585      - all dims now have associated coordinate variables
1586      - variables located at U, V, and Corner ("Z") points are now written
1587        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1588        *all* data points are output
1589    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1590    o added pkg/seaice/seaice_monitor.F
1591    o mdsio_readfield.F can now read files visible only to master MPI process.
1592    o pkg/seaice: some test code for ice-modified ocean stress
1593    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1594      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1595      spurious negative numbers for precipitation and humidity.  Will cause
1596      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1597    o pkg/ctrl/
1598      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1599        May be enabled via doPackDiag
1600      *  introduce z-scaling of
1601         + gradient (doZscalePack) and
1602         + control (doZscaleUnpack)
1603    o pkg/mdsio/
1604      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1605      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1606    
1607    checkpoint57b_post
1608    o simplify options in diagnostics_fill arguments (remove weird combinations)
1609    o fix MNC coordinate variables so that they now contain per-face index
1610      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1611      general, EXCH2 grids are only aligned to a "local" coordinate system
1612    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1613    o Implement instantaneous output within pkg diagnostics:
1614      setting a negative frequency in data.diagnostics produces
1615     "snap-shot" output (as opposed to time-average if freq > 0)
1616    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1617      NOTE: change ptracer diagnostics name: use 2 characters to work with
1618            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1619    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1620      becomes the coordinate variable for the 'T' dimension
1621    o add CF-style coordinate variables to MNC
1622      - just a first cut:  numbers are meaningless on the cubesphere and
1623        missing along the T axis but otherwise it works!
1624    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1625    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1626    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1627      this is based directly on what the model compute, so that the content of
1628      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1629    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1630    o clean up build options files for SunOS, in particular
1631      - remove -traditional from xmakedepend
1632      - change -xarch=v9 to -xarch=native for f77
1633      - restore use of make (not gmake)
1634      - add CC=gcc if using g77
1635    o changes per discussion of AM, JMC, & EH3 today:
1636      - move redundant "grid" variables out of "state" -- in preparation of
1637        creating proper CF-style coordinate variables and in recognition
1638        that any/all grid variables can be easily copied (eg. w/NCO) from
1639        the grid files into any of the other NetCDF files
1640      - *always* output grid variables with MDSIO (this will eventually be
1641        changed)
1642      - output MNC grid file if useMNC is true
1643    o every instance of _END_MASTER() has been found and replaced with
1644      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1645      preprocessors
1646    o re-arrange diagnostics pkg initialisation:
1647     - allow each package to extend the available diagnostics list
1648     - add some checking and fix small problems (multi-threaded, ...)
1649     - new S/R diagnostics_fill (replace fill_diagnostics):
1650       look through the short list of active diag. (instead of the long list)
1651       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1652    
1653    checkpoint57a_post
1654    o this set of changes restores TAMC compatibility
1655      tested for global_ocean.90x40x15 adjoint on trough
1656      (what a pain)
1657    
1658    checkpoint57a_pre
1659    o some modifs in tools/build_options for sunos
1660    o call ctrl_pack for ctrl at end for optimcycle=0
1661    
1662    checkpoint57
1663    o add horizontal bi-harmonic viscosity for vertical velocity
1664      - new parameter viscA4W (defaults to viscA4)
1665      - affects only non-hydrostatic code
1666      - to be done: no-slip lateral boundary conditions
1667    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1668    o implement Implicit Vertical advection for pTracers
1669    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1670      (implemented also for implicit vertical diffusion & advection)
1671    o OBCS: extend application of tracer open boundary conditions
1672      to a strip beyond the boundary of width Olx/Oly
1673    o add call monitor to TAF set of required calls (flow directives)
1674      and include in natl_box_adjoint
1675    o untangle a few ifdefs related to cost, ctrl, autodiff
1676      untangel a few ALLOW_ECCO_OPTIMIZATION
1677    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1678      (theta2, salt2 in ecco_cost_weights)
1679    
1680    checkpoint56c_post
1681    o OBCS as control variables
1682      - update ctrl_ad_diff.list, obcs_ad_diff.list
1683      - remove balance of obcs controls from default
1684      - fix index bug nobcs in ctrl_init
1685      - fix dummy fields filen in ctrl_pack
1686      - add dummy weights for obcs
1687    o lsopt: comment out fort.94 output
1688    o optim:
1689      - remove unnecessary header files
1690      - adjusted namelists
1691      - add xerbla.F to Makefile
1692    o exf:
1693      - multiple modifications of exf_check_range
1694      - unit change in exf_init_runoff from [m/year] to [m/s]
1695    o mdsio:
1696      - i/o-vector change debugLevel from debLevA to debLevB
1697    
1698    checkpoint56b_post
1699    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1700      is called from DO_THE_MODEL_IO
1701      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1702      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1703      - clean up PTRACERS_WRITE_TIMEAVE a little
1704    o add another verification experiment that tests both the cfc-pkg and
1705      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1706      reactive tendencies treated inline with regular timestepping
1707    o testreport previously did a lousy job of comparing small numbers, so
1708      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1709      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1710      testreport.
1711    o ptracers_monitor: bug fix for MPI
1712    
1713    checkpoint56a_post
1714    o GCHEM: finish reorganizating the package
1715      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1716        (introduces another 3D-array for each passive tracer, but only if
1717        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1718        gchemTendency is not needed because the timestep is done separately)
1719      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1720      - GCHEM is now---more or less cleanly---separate from PTRACERS
1721      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1722        so clear to me how that should be done in a general way.
1723    o CFC: improve formatting of output in CFC_ATMOS
1724    o PTRACERS:
1725      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1726        that ALL experiments with ptracers enable can be checked. This makes
1727        GCHEM_MONITOR obsolete.
1728      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1729        monitorFreq
1730      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1731    o add PTRACERS (PTR0[1-5]) to testreport output
1732    o exf_check_range:
1733      * default changed to .TRUE.
1734      * will check values for niter0 if debLevA, every timestep if debLevB
1735      * STOP in exf_check_range if 'out of range'
1736      * range chosen generous to allow for potential extema
1737      TBD: a version with stricter range
1738           permitted range would be runtime parameters
1739    o GMredi:
1740      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1741      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1742      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1743    o GCHEM:
1744      - move call to GCHEM_FORCING_SEP, so that it is now called before
1745        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1746      - introduced a useGCHEM runtime flag and applied it everywhere.
1747      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1748        this flag is now only visible within GCHEM-pkg routines.
1749      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1750        be replaced by a 3D array that is computed before thermodynamics; for
1751        this, the tracer ID iTracer had to be included into the parameter list
1752        of ptracers_forcing
1753      - set up forward_step to call gchem_forcing, that will replace
1754        gchem_forcing_int in ptracers_forcing
1755      - cleaning up
1756    o small cleaning of exch2: remove files that are also in eesupp/src
1757    
1758    checkpoint56
1759    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1760    o mnc: cleanup "full" files--fixes out-of-memory problem
1761    o ECCO-GODAE
1762      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1763      * fully merged and updated from SIO code
1764        windstress sign change affects
1765        - exf_inscal_[u/v]stress
1766        - sign of xx_tau[u/v] adjustments
1767        - signs in cost_scat
1768      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1769      * natl_box_adjoint updated and compressed
1770      * 2-level checkpoint switch added
1771        (tested in EXP. 1 of natl_box_adjoint)
1772      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1773    o SVD
1774      * first complete, non-hacked version for SVD calculations
1775      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1776        performed via direct access files admtlm_vector.it????
1777        (via ctrl_[un]pack)
1778      * optimcycle is used for ARPACK iteration counter
1779        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1780      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1781        and add linear transforms where necessary
1782      * controls are initial/final SST, SSS (can be extended; need to check
1783        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1784    o mdsio: filename info to both stderr, stdout
1785    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1786      from sign change
1787    
1788    checkpoint55j_post
1789    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1790      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1791    o add consistent build directories and .cvsignore files to verification
1792    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1793    o make all subroutines 30 or less characters in length for certain older
1794      compilers to work (a thorough search only turns up two routines in
1795      pkg/ptracers)
1796    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1797      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1798    
1799    checkpoint55i_post
1800    o change arrays for total vertical diffusivity (2.D if explicit,
1801      3.D if implicit) ; each ptracer uses its own background value.
1802    o added mnc/NetCDF output capability to ocn_compon_interf
1803      - added bits to verification/cpl_aim+ocn so that it can run on
1804        ITRDA and other clusters without the mpirun "-wd" option
1805    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1806      configuration
1807    o give MNC the ability to create additional files rather than
1808      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1809      - the default is just less than 2GB which is a practical limit
1810        on many systems
1811    o Compute the non-local term using either KPP vertical diffusivity (=default)
1812       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1813    
1814    checkpoint55h_post
1815    o add verification test "vermix"
1816    o remove all the *_ioinc flags and replace with the single global
1817      outputTypesInclusive flag
1818    o allow to set a vertical profile of vertical diffusivity for T & S
1819    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1820    o useMNC moved from data.mnc to data.pkg
1821    
1822    checkpoint55g_post
1823    o Renaming carbon AD experiments to comply with testreport conventions
1824    o Updating adjoint of Held-Suarez hs94.1x64x5
1825    o Fixing directives for non-ECCO forward_step, after ECCO directives
1826      have been fixed to avoid recomp. of do_oceanic_phys
1827      Works well for global_ocean.90x40x15,
1828      but recomp. issue remains for carbon
1829    o Updating adjoint output for natl_box_adjoint after
1830      pkg/ecco has been modified (see taga c55d_post)
1831    
1832    checkpoint55f_post
1833    o rename to timeave_init_fixed
1834    
1835    checkpoint55e_post
1836    o some delicate re-shuffle of store directives to avoid one
1837      extra call of do_oceanic_physics
1838      affects ecco_the_main_loop.F, do_oceanic_physics.F
1839      checkpoint_lev1_directives.h
1840    o NB: this may break global_ocean adjoint temporarily,
1841      but it is clear how to fix it. Will do later, need this now.
1842    
1843    checkpoint55d_post
1844    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1845    o ecco_cost_weights is modified to 1x1 runs
1846    o modifs to allow observations to be read in as
1847      single file or yearly files
1848    o enable to read exf forcing fields as either
1849      single file or yearly files (flag useExfYearlyFields)
1850    checkpoint55d_pre
1851    
1852    o switch between 2-level and 3-level checkpointing
1853    o add ability of MNC to write local and "partial" (eg. 2D slices where
1854      the full 3D field is never actually stored) arrays to NetCDF files
1855      with the correct (that is, the complete multi-dimensional) set of
1856      array indicies
1857      - used in mom_vecinv() to write the diagFreq output
1858      - tested (demonstrated) in verification/aim.5l_cs
1859    o further mnc-ification
1860      - add verification/lab_sea to the list with mnc setups
1861      - fix undefined mnc v-names in cd_code
1862      - add kpp to mnc output (both snapshot and timeave)
1863    o non-hydrostatic code
1864      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1865        in calc_gw.F
1866      - defaults to viscAh
1867      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1868        friction or Leith) in non-hydrostatic mode, as long as there is
1869        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1870    o pkg/cost
1871      extend simple cost functions to treat time mean quantities
1872      (T,U,V) via cost_accumulate_state from cost_tile
1873    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1874        be 2 times larger than the minimum size the advection scheme requires.
1875        now get a perfect conservation of salt in advect_cs test-exp (updated)
1876    o GGL90 (Gaspar's TKE mixed layer)
1877      - add horizontal diffusion of TKE, requires exchanges in
1878        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1879        default. In OPA there is no horizontal diffusion of TKE but the
1880        mixing coefficients are computed from a horizontal average of TKE of
1881        6 points or so. I think that diffusion has a little more physical
1882        justification.
1883      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1884        was in vain)
1885      - mask tke-variable in ggl90_init
1886    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1887    o fix biharmonic diffusion on CS-grid.
1888    o more obcs stuff
1889      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1890        for reading boundary values. This routine is called from
1891        obcs_prescribe_read
1892      - updated obcs_check
1893      - changed sponge layer relaxation parameter units for days to seconds
1894      - turned off sponge layer by default
1895      - changed argument list of OBCS_CALC to myTime+deltaTclock
1896      - fixed about 35 bugs in obcs_external_fields_load
1897    
1898    checkpoint55c_post
1899    o obcs stuff
1900      - new runtime flags useOBCSprescribe, useOBCSbalance
1901      - re-arranged obcs_calc
1902      - moved exf_getobcs to obcs_prescibe_read
1903        obcs_prescibe_read is called after ORLANSKI stuff
1904        and independent of it (executable can contain all).
1905      - updated obcs_check
1906      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1907        These may be necessary only if tangential velocities are
1908        prescribed at OB, not sure, needs testing.
1909    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1910      which simplifies the calls and passes the ifc check-bounds test
1911    
1912    checkpoint55b_post
1913    o add a 2D scalar, Z location, exchange_2 routine.
1914    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1915      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1916      affects advect_cs results (for the wrong reason): update output.txt
1917    o use a more standard discretization for biharmonic viscosity ;
1918     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1919      affects results of dome set-up: update output.txt
1920    o fix gad_advection.F (CubedSphere part), back to version 1.23
1921    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1922    
1923    checkpoint55a_post
1924    o merged code to
1925      * prescribe/read time-dependent open boundaries
1926        (works in conjunction with exf, cal)
1927      * sponge layer code for open boundaries
1928      * each boundary N/S/E/W now has its own CPP option
1929        (healthy for the adjoint)
1930    
1931    checkpoint55
1932    o up-to-date adjoint of previous breaks
1933      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1934      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1935      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1936      - carbon: * remove tr1-related adjoint verification
1937                * add ptracer as control variable
1938    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1939      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1940    
1941    checkpoint54f_post
1942    o in verification/carbin/ remove experiment related to
1943      ALLOW_PASSIVE_TRACER (array tr1 etc)
1944      code_ad/ input_ad/ results_ad
1945    
1946    o add two new packages
1947      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1948        + subject to optimization (memory)
1949      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1950        + subject to reordering (many GOTOs in the original code)
1951        + so far opps is called for every (i,j) point, and then operates in
1952          the vertical; one may want to reorder the scheme in order operate in
1953          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1954          fields)
1955    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1956      - all verification tests compile and run with linux_ia32_g77
1957      - defaults are compatible with current input files--nothing
1958        should change if you were not previously using MNC
1959      - MNC output has been added in numerous places (eg. timeave)
1960        but there are still a few writes not yet do-able with MNC
1961        (this is in progress)
1962      - flags now allow for either/or/both use of MDSIO and MNC and
1963        documentation will soon follow
1964      - numerous small formatting cleanups for ProTeX
1965    o add version info (via BUILD_INFO.h) to MNC and stdout
1966    
1967    checkpoint54e_post
1968    o add two new packages
1969      - pp81 (Packanowski and Philander, 1981), Richardson number and
1970        stratification dependent mixing
1971      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1972      - these scheme operate in a similar manner as KPP (without ghat, of
1973        course), however there is only one diffusivity that is used for both
1974        temperature and salinity (and passive tracers)ç
1975    o add offline package
1976    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1977      provided by Stephanie Dutkiewicz
1978    o genmake2: add ability to search for C compilers and cleanup test output
1979      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1980    
1981    checkpoint54d_post
1982    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1983    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1984      leading to additional shift by 5 days each year of integration
1985       (i.e. leading to considerable offset over the years)
1986    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1987    o start with no AB and no initial filtering (staggerTimeStep):
1988      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1989    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1990      (external loading & cpl import/export stay in forward_step.F)
1991    o update coupling interface to work with new staggerTimeStep
1992    o change MDSIO ptracers_pickup.
1993    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1994    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1995    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1996    
1997    checkpoint54c_post
1998    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1999      this affects (truncation error) output.txt of test-exp:
2000       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2001    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2002    o change Qnet to always be the net heat flux, (+upward).
2003      affects (truncation error) output of natl_box exp.: updated
2004    o define the max number of passive tracers in PTRACERS_SIZE.h
2005    o start to test mnc routinely in exp0
2006    o add sea-ice loading (sIceLoad) as a new forcing field.
2007    
2008    checkpoint54b_post
2009    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2010       impressive on Altix and Opteron systems)
2011    o diagnostics can now write NetCDF files through the mnc package
2012    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2013    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2014    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2015      affects (truncation error) output of lab_sea & natl_box exp.: updated
2016    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2017    
2018    checkpoint54a_post
2019    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2020    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2021    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2022    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2023      + internal_wave (shift in writing cg2d_ini_res)
2024    checkpoint54a_pre
2025    
2026    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2027      - modified verification/lab_sea and natl_box_adjoint accordingly
2028    
2029    checkpoint54
2030    checkpoint53g_post
2031    o prepare splitting of thermodynamics: store convect.counter in common block
2032    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2033      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2034    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2035    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2036    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2037    o restore adjointability
2038    
2039    checkpoint53f_post
2040    o modifications that affect AIM experiment results (update output.txt):
2041      - no advection of S at top interface Nr (pkg/generic_advdiff)
2042      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2043    o AIM pkg:
2044      - include stability function into surf.Flux derivative relative to Tsurf
2045      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2046    
2047    checkpoint53e_post
2048    o merged cylindrical coord configuration
2049    o added rotating_tank experiment
2050    checkpoint53e_pre
2051    
2052    checkpoint53d_post
2053    o faulks upgraded: re-generate output.txt that have changed:
2054       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2055    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2056    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2057    o added Sadourny discretization of Coriolis
2058      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2059      - re-enabled use of omega3 (useAbsVorticity)
2060    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2061      vector-invariant equations
2062      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2063    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2064      hopefully without new bugs
2065      - still to do: biharmonic friction for non-hydrostatic w
2066    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2067    o regenerated output for global_ocean_ebm (using -ieee)
2068    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2069      of mom_common/
2070      - simple re-arrangement of instructions within computing loop
2071    checkpoint53d_pre
2072    
2073    checkpoint53c_post
2074    o new version of coupler for AIM+thSIce and Ocean models
2075     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2076     - land: change Evaporation of snow
2077     - aim with thSIce: fix bug in snow-precip.
2078    o changes to calc_gw.F
2079     - bug fix for w^2 term near the bottom boundary
2080     - (hopefully) improve the lateral slip boundary condtions for use with
2081        partial/looped cells
2082      - because the bug fix changes two verification experiments anyway (exp5
2083        and plume on slope), change the lateral boundary condition from half slip
2084        to the value of no_slip_sides
2085    o ebm package wasnt quite up to the parallel task. Fixed that.
2086    o Adjoint of EBM package + verification
2087      * TLM OK
2088      * ADM not sufficient accuracy yet (needs further testing)
2089    
2090    checkpoint53b_post
2091    o Commiting new energy balance model to repository
2092      * package is pkg/ebm
2093      * verif. is verification/global_ocean_ebm
2094      * references are in ebm_driver.F
2095    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2096    C        Global thermohaline circulation. Part I:
2097    C        Sensitivity to atmospheric moisture transport.
2098    C        J. Climate 12(1), 71-82
2099    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2100    C        Global thermohaline circulation. Part II:
2101    C        Sensitivity with interactive transport.
2102    C        J. Climate 12(1), 83-91
2103    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2104    C        Destabilization of the thermohaline circulation
2105    C        by atmospheric eddy transports.
2106    C        J. Climate 7(12), 1870-1882
2107    o Will need long integration testing.
2108    checkpoint53b_pre
2109    
2110    o created pkg/mom_common in preparation for variable viscosity code
2111    o renamed and split ini_mnc_io
2112    o pkg/land: only liquid water can diffuse or run-off
2113    o AIM using land: soil wetness availability account for snow
2114    o added printMapIncludesZeros to EEPARMS namelist
2115    
2116    checkpoint53a_post
2117    o restore TAMC compatiility for exf_constants.h
2118      (no usage of _d in .h)
2119    o Additional storing in KPP in an attempt to fix
2120      TAMC problem with adjoint of KPP code.
2121      (no success...)
2122      Identical code works fine with TAF.
2123    o Fixed verification/natl_box_adjoint experiments.
2124      Initial conditions for Experiments 4 and 5 are now
2125      set to "SEAICE_initialHEFF=0", which is more reasonable,
2126      and hence gives results closer to that of Experiment 2.
2127      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2128    
2129    checkpoint53
2130    o stable checkpoint with up to date adjoint
2131      TLM tests only run for 1st grdchk at the moment. Its unclear if
2132      this is a code problem or a problem with resetting code for g_
2133      variables that is being autogenerated wrong.
2134      Otherwise:
2135       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2136       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2137         are both still in chaos following their security messes.
2138    
2139    checkpoint52n_post
2140    o various build (mostly genmake2) changes including:
2141      - ability to build/run more easily within Cygwin and MacOS X
2142      - more complicated Makefiles with a stronger dependence on Gnu Make
2143    o pkg/seaice modifications
2144      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2145        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2146        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2147      - changed proxy for geostrophic velocity and updated
2148        verification/lab_sea/results/* accordingly
2149      - removed ADI dynamic solver from pkg/seaice
2150      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2151        they caused a segmentation fault under certain circumstances
2152      - removed unused field WATR
2153    o bug fix in exf-package:
2154      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2155         now reflect that.
2156    o small fixes in the cal-package:
2157      - set reference date to first of January for the 'model'-calendar
2158      - failing of cal_CheckDate in cal_FullDate now actually results in a
2159        warning
2160    o small modifications in exf-package to increase flexibility:
2161      - change climtempfreeze from a constant to a runtime parameter that
2162        is specified in data.exf_clim (default = -1.9)
2163      - introduce runtime parameter windstressmax (default = 2.0) that is
2164        specified in data.exf
2165    o fix in pkg/thsice:
2166      - update Evap (Tsf changes) to be consistent with Latent heat flux
2167      - maintain snow precipitation unchanged (even if Tsf >=0).
2168     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2169    
2170    checkpoint52m_post
2171    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2172      this does not change any of the results, because myIter=0 in swfrac always
2173      lead to jwtype=2 (the default anyway), but the call makes little sense
2174      as a default
2175    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2176    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2177      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2178    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2179    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2180    o extending useSingleCpuIO option to work with new exch2 I/O format
2181      - old-style, missing-tile I/O is still accessible by defining CPP
2182        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2183    o monitor package can write to NetCDF files and/or STDOUT
2184    o fix re-definition bug in MNC_GRID_INIT_ALL()
2185    o doc/api_reference added
2186      - a framework for building an API Reference Manual using all
2187        the "protex" comments embedded in the code
2188      - see pkg/generic_advdiff, pkg/mnc for examples
2189    o MNC:
2190      - make myThid the last argument for all subroutines
2191      - new default for the grid files: NO halos
2192      - add useMNC and other run-time flags
2193      - separate per-file-group handling of the unlimited dimension
2194      - early initialization of MNC w/ flags read at the eeboot stage
2195        and lookup tables set in initialize_fixed
2196      - write all MNC output to a freshly-created directory
2197    o thermodynamics sea-ice (thsice) is now tested with testreport.
2198    o test exp. advect_cs: use the standard cs32 grid ; update output.
2199    o Added functionality to grdchk:
2200      pick global i,j,k position (or nearest wet) where to perform check.
2201    
2202    checkpoint52l_post
2203    o new land formulation:
2204      a) use ground enthalpy as prognostic variable to ensure exact
2205         energy conservation.
2206      b) account for water temperature and for latent heat of freezing
2207         in all processes (rain, run-off, ground storage)
2208      c) compute surface and ground temperature implicitly.
2209    o aim_v23 modification for new land model:
2210      a) Treat separately land / ocean / sea-ice surface fluxes
2211         to allow implicit computation of land & sea-ice surface temp.
2212      b) add snow precipitation.
2213    checkpoint52l_pre
2214    
2215    o fix problem (when 1 tile is empty) in min/max monitor.
2216    o fix bug in timeAve (u,vZetatave in common block)
2217    o no restoring terms under ice for pkg/seaice
2218    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2219    o bug fix for pkg/seaice pickups
2220    o change MNC call locations and add coordinate attributes
2221    o mask vorticity at the corner ; affects global_ocean.cs output
2222    o fix ini_curvilinear_grid ; test CS experiments with mpi
2223    o aim.5l_cs: modify sea-ice fraction input file ; update output
2224    o exf: Adding simple range check routine for exf fields after read
2225    
2226    checkpoint52k_post
2227    o removed top-level directory "diags"
2228      - we migrated these functions to pkg/timeave a long time ago
2229    o fixed bug introduced in pkg/monitor
2230    o accuracy ctrlprec = 32 insuffient for gradient checks using
2231      averaged fields (I/O via cost_averages)
2232      -> use ctrl.h in active_file*.F to control I/O precision.
2233    o paramter list of CALL ADTHE_MAIN_LOOP
2234    o added initial do_the_model_io to ecco
2235    o set all ...Freq to zero after cost_final
2236      taveFreq, dumpFreq, pChkptFreq
2237    o MAIN and ECCO differentiability restored
2238    
2239    checkpoint52j_post
2240    o fix nchklev in tamc.h for global_ocean...
2241    o Bringing flow and store directives up-to-date
2242    o Really weird thing!
2243      call do_the_model_io from the_main_loop with parameters
2244      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2245      TAF places a faulty re-call of initialise_varia
2246      after cost_final call which should not be there!
2247    checkpoint52j_pre
2248    
2249    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2250      error messages
2251    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2252    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2253      debug output
2254    o modfied mdsio_writefield.F to handle non-global files under exch2
2255    o update AIM Cubed-Sphere exp (aim.5l_cs):
2256      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2257    o update AIM Equatorial Channel exp:
2258      use standard aim_v23 pkg and change the SST fields to be more realistic.
2259    o globalFile now works with exch2
2260    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2261      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2262    o limit timeave output for hi-res integrations
2263    
2264    checkpoint52i_post
2265    o removed CPP_EEOPTIONS.h from verification/*/code
2266    o updated the tiling for global_ocean_pressure
2267    checkpoint52i_pre
2268    
2269    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2270      the old pkg/aim).
2271    
2272    checkpoint52h_pre
2273    o shortened offending lines in exch2_send_rx?.template
2274    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2275    o genmake2: add build & execute test for NetCDF code
2276    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2277      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2278    o added useSingleCPUIO flag to monitor.F and mon_out.F
2279    o added temporary hack for sea-ice dynamics on the cube:
2280      metric terms are ignored and it is assumed that
2281      there is no sea-ice on cube faces 1, 2, 4, and 5.
2282    
2283    checkpoint52f_post
2284    o added exch2 cube routines to pkg/exch2
2285    o modified hs94.cs-32x32x5 to use it
2286    o added new grid files to hs94.cs-32x32x5
2287    checkpoint52f_pre
2288    
2289    checkpoint52e_post
2290    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2291      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2292    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2293      to work with implicit vertical advection and AB ;
2294    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2295    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2296     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2297    checkpoint52e_pre
2298    
2299    o fix bug in impldiff when Nr=1 or Nr=2.
2300    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2301    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2302    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2303      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2304    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2305    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2306    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2307    
2308    checkpoint52d_post
2309    o re-tiled many expts to allow comparison in multi-processor mode
2310      - updated output accordingly
2311      - changed hs94.128x64x5 to use intial T from file rather than use the
2312        random number generator
2313    o add infrastructure in model routines for fizhi and gridalt packages
2314    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2315    o changes to permit hi-res, cubed-sphere, configuration
2316      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2317      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2318      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2319        of surface winds for the cube
2320      (A verification experiment, based on global_ocean.cs32x15, but with
2321       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2322       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2323       complete with example surface forcing files and matlab scripts to look
2324       at the output and compare it with that of global_ocean.cs32x15.)
2325    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2326       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2327       to conform to the common rule.
2328    o check-in the first version of the coupler + interfaces for multi-components
2329       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2330       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2331       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2332       - ocean and atmos. share the same horizontal grid (no interpolation).
2333       - exchanges between component and coupler is done in forward_step
2334    o new verification experiment, cpl_aim+ocn:
2335       coupled ocean - AIM atmosphere on cs32 grid.
2336    
2337    checkpoint52d_pre
2338    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2339    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2340    
2341    checkpoint52c_post
2342    o Fixing OPTIONS files for use of exf:
2343      - ALLOW_ECCO not needed
2344      - ECCO_CPPOPTIONS.h should not be included from
2345        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2346        as has been the case in the past
2347      - All cal/exf related options are currently set in
2348        single header file. Should remain so until we
2349        agree on a consistent new policy.
2350    o Removed all CPP options for cal package.
2351      cal has no more CPP options.
2352    o modified STOREs in GAD_ADVECTION
2353    o corrected key comp. for passkey
2354    
2355    checkpoint52b_post
2356    o new version: "thsice" of thermodynamic sea-ice pkg:
2357     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2358     - modify fluxes but do not change theta directly;
2359     - light cleaning of bulk_force pkg (still needed with thsice).
2360     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2361       + output_thsice.txt to test thsice & bulk_force pkgs.
2362    o put back grid & coriolis monitor output.
2363    checkpoint52b_pre
2364    
2365    o call "do_the_model_io" at the beginning (=> dump initial state)
2366    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2367    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2368      (need info on NUMBER_OF_PTRACERS)
2369    o missing PTRACERS headers in some routines
2370    o default tamc.h in pkg/autodiff supposed to crash
2371      to ensure proper customization
2372    
2373    checkpoint52a_post
2374    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2375      - moved surfaceTendencyTice from pkg/seaice to main code
2376      - subroutine FREEZE_SURFACE now limits only surface temperature
2377        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2378        => new output.txt for global_ocean.cs32x15 & global_with_exf
2379      - keep the old version of FREEZE for backward compatibility;
2380        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2381      - corresponding modifs for TAF directives
2382    o added surface flux output variables to TIMEAVE_STATVARS
2383    o time-averaged output for pkg/ptracers
2384    o fix problem with ECCO-related divided adjoint
2385      snapshot file was missing some ad-variables,
2386      but no warning issued by TAF
2387    
2388    checkpoint52a_pre
2389    o some bug fixes for #undef REAL4_IS_SLOW
2390    
2391    checkpoint52 = ecco_c52_e35
2392    o after testing adjoints of checkpoint51u_post
2393    
2394    checkpoint51u_post
2395    o this is the post-merge tag of the ecco-branch
2396      (needs another clean checkout and re-testing)
2397    o various natl_box_adjoint configs and results
2398      but no input fields
2399    o obcs adjoint not yet merged!
2400    o adding ECCO global 1x1 and 2x2 degree configs
2401    o updated/extended some store directives for seaice
2402    o pkg/ecco now containes ecco-specific part of cost function
2403    o top level routines the_main_loop, forward_step
2404      supersede those in model/src/
2405      previous input data.cost now in data.ecco
2406      (new namelist ecco_cost_nml)
2407    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2408    
2409    checkpoint51t_post
2410    o this is the pre-merge tag of the ecco-branch
2411    
2412    checkpoint51s_post
2413    o cleanup: removed various obsolete #define-s
2414    o pkg/grdchk
2415      - renamed 'ph-grd 3' to 'grad-res'
2416      - merged from ecco-branch
2417        (remaining bug fixes for obcs gradient checks)
2418      - additional high-precision output for testreport
2419        (grep for 'precision_grdchk_result')
2420    
2421    checkpoint51r_post
2422    o cleaned up or removed CPP_OPTIONS.h files
2423    o updated results for some of the tests to reflect the new
2424      optfiles (-ieee: -O0 instead of -O3)
2425    
2426    checkpoint51q_post
2427    o cd_code:
2428      - moved cd_scheme.F -> cd_code_scheme.F
2429      - separate read_checkpoint from cd_code_ini_vars.F
2430      - separated cd_code part from write_checkpoint
2431      - updated AD_SOURCE, generated .flow
2432      - added CD_CODE_VARS.h to the_main_loop
2433      - Moving cd_code specific store dir.s to pkg/cd_code
2434    o ctrl package totally restructured
2435      - pack/unpack now optional and decoupled from
2436        xx_/adxx_ I/O
2437      - ctrl_pack/unpack cleaned
2438        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2439      - confined inclusion of AD_CONFIG.h to where necessary.
2440    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2441    
2442    checkpoint51p_post
2443    o create initial cd_code package
2444      - WARNING: the initialization of fields within packages
2445        is broken because INI_FIELDS (where READ_CHECKPOINT is
2446        called) is called *before* PACKAGES_INIT_VARIABLES.
2447        This seems to be backwards since
2448        1) its important to initially zero the entire field including
2449           the "halo" region
2450        2) zeroing needs to be done *before* reading pickup info
2451           and the pickup call might or might not happen in any
2452           particular run
2453      - this needs an overhaul for R2
2454    o cleanup verification/*/code/GMREDI_OPTIONS.h
2455    o cleanup testreport
2456    
2457    checkpoint51o_post
2458    o bringing AD-related verif's up to date with genmake2
2459      - carbon/
2460      - global_ocean.90x40x15/
2461      - hs.94.1x64x5/
2462      - (front_relax/ )
2463    o (more) consistent directory structure for AD-related verif.'s
2464    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2465    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2466    o bug fix in find_alpha.F for MDJWF:
2467      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2468        change rho -> rho-rhoConst
2469      - replace call find_rho to find_rhonum
2470    o initialisation of rFlx extended to full array (required by TAF)
2471      and shifted to thermodynamics
2472    o removed PTRACERS.h in ptracers routine
2473    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2474    o Correcting initialisations for fVerU, fVerV.
2475    o helping TAF to recognize dependency on kUp for
2476      fVerU, fVerV
2477    o Replacing delZ by delR in pkg/ctrl/
2478    checkpoint51o_pre
2479    
2480    o undid all of cp51 pending some cleanups and discussion
2481    o added the [#include "AD_CONFIG.h"] statement to all files that need
2482       it for adjoint/tl #defines
2483     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2484     o removed tools/genmake since it no longer works
2485    
2486    checkpoint51n_post
2487    o modifications to make FREEZE flux visible to pkg/kpp
2488      - moved surfaceTendencyTice from pkg/seaice to main code
2489      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2490      - subroutine FREEZE now limits only surface temperature
2491        (this means new output.txt for global_ocean.90x40x15,
2492         global_ocean.cs32x15, and global_with_exf)
2493    o added surface flux output variables to TIMEAVE_STATVARS
2494    
2495    checkpoint51n_pre
2496    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2497    o added [#include "AD_CONFIG.h"] to all files that use the following
2498      defines:
2499      - ALLOW_ADJOINT_RUN
2500      - ALLOW_TANGENTLINEAR_RUN
2501      - ALLOW_ECCO_OPTIMIZATION
2502    
2503    checkpoint51m_post
2504    o incorporating changes to get TAMC/TAF working in genmake2
2505      - added new TAMC/TAF targets to the Makefile
2506      - various cleanups related to package handling
2507      - these changes should have no impact on the forward model
2508    
2509    checkpoint51l_post
2510    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2511     - faster algorithm for cal_addtime.F
2512     - higher precision arithmetic, where needed
2513     - pkg/exf *startdate variables changed from calendar date to
2514       model integration time
2515    
2516    checkpoint51l_pre
2517    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2518    o enable to apply restoring on S & T only in a latitude band.
2519    o update output (external_forcing_surf modif. change truncation errors)
2520       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2521    
2522    checkpoint51k_post
2523    o change default to: useNHMTerms=.FALSE.
2524     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2525       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2526     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2527        exp1, ideal_2D_oce
2528     - change data file of oceanic exp (leave the results unchanged for now)
2529       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2530    o set gravitySign automatically according to the vertical coordinate used
2531      (and change sign: back to "logical" value: +1 when R increases downward)
2532    o added an include barrier to the default CPP_OPTIONS.h and
2533      removed the #include "PACKAGES_CONFIG.h" from it
2534    o fix a bug in mom_fluxform (from chk51j_post)
2535    
2536    checkpoint51j_post
2537    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2538    o adjusted some flow directives (dynamics, thermodynamics)
2539    o added cubed-sphere case to test cost function
2540    o heckpoint_lev?_directives.h now include
2541      pkg-specific directives, whenever those are enabled.
2542    o Moving pkg-specific flow directives to corresponding pkg
2543      Moving pkg-specific differentiation list to corresponding pkg
2544      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2545      ---> conventions are
2546           - pkg_ad.flow
2547           - pkg_ad_diff.list
2548           - pkg_ad_check_lev?_dir.h
2549    
2550    checkpoint51i_post
2551    o merge of the branch-genmake2
2552      - knowingly breaks the older genmake
2553      - automatic generation of all ALLOW_${PKG_NAME} defines
2554      - new testreport supersedes older testscript
2555    o large number of package inclusion and header cleanups
2556    checkpoint51i_pre
2557    
2558    o new output for adjoin of global ocean vector invariant
2559    o fix for checkpoint of thermodynamic seaice and bulk_force
2560    o Steph gchem various cleanups
2561    
2562    checkpoint 51h_pre
2563    o fixed some single quotes
2564    o modify gchem pkg to be more versatile
2565    o modifications to clean up dic pkg
2566    o add pkg/cfc
2567    
2568    checkpoint51g_post
2569    o provide links for ARPACK and ADM*TLM
2570    o start removing verification/vero/
2571    o update AD-related stuff
2572      (in particular some IF-statements in model/src/ routines)
2573    o adding to verification/global_ocean.90x40x15/ adjoint of
2574      vector invariant setup
2575    
2576    checkpoint51f_post
2577    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2578    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2579      of tracer Green's fucntions for ocean inversion project.
2580    
2581    checkpoint51f_pre
2582    o Added on-the-fly spatial interpolation capability
2583        "USE_EXF_INTERPOLATION" to pkg/exf.
2584      - This is a temporary Cartesian-grid hack until
2585        the super-duper ESMF coupler becomes available.
2586      - See verification/global_with_exf/README for usage example.
2587      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2588        flags and modified pkg/seaice accordingly.
2589    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2590        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2591        non-local transport term.
2592    
2593    checkpoint51e_post
2594    o pkg/mom_vecinv:
2595      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2596      - add time-ave diagnostic of vorticity advection.
2597    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2598    o atmospheric geopotential: - include water vapor effect;
2599                                - use p^kappa in p* scaling.
2600    o land pkg: read initial state from files.
2601    o AIM : add stratospheric drag in the upper level
2602    
2603    checkpoint51d_post
2604    o change function ILNBLNK (=> last non-blank char.) to return zero
2605      (instead of the string length) when the string. char is empty
2606  o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)  o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2607    o modif's to restore TAMC compatibility
2608      - avoid "_d" constructs in PARAMETER declarations
2609      - avoid interrupting lines by comment lines
2610    o Use cluster local disks for purely local I/O
2611      vs. globally visible disks needed for ctrl stuff
2612      (merged from ecco-branch)
2613      - new active_file_loc... and mdsio_..._loc routines
2614      - affected packages: autodiff, ctrl, grdchk, mdsio
2615    
2616  checkpoint51c_post  checkpoint51c_post
2617  o introducing integer flag debugLevel  o introducing integer flag debugLevel

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