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revision 1.137 by jmc, Wed Feb 26 03:29:08 2003 UTC revision 1.804 by mlosch, Tue May 1 04:10:31 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  untagged  o pkg/seaice: some parameter clarifications and a little bit of clean up
8    o pkg/thsice: rename run-time parameters:
9       himin       -> hIceMin
10       himin0      -> hThinIce
11       hihig       -> hThickIce
12       i0          -> i0swFrac
13       transCoef   -> bMeltCoef
14       frac_energy -> fracMelting
15      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
16       with default values (for now) that do not change the results.
17      remove old version of thsice vars advection in pkg/seaice.
18    o in FFIELDS.h:
19      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
20      - make pLoad & sIceLoad always available (but still only used if
21         ATMOSPHERIC_LOADING is #define).
22    o pkg/kpp: replaced _KPP_RL with _RL
23    o bug fixes for vertical diffusivity computations when both KPP and
24        3D diffusivity arrays are used.
25    o pkg/seaice: fix bug in evp solver, while doing that
26      - change (improve?) discretization of stress computations for both
27        cgrid-lsr and evp solver
28      - add a new routine to compute strain rates
29      - the above changes lab_sea results
30      - add no slip conditions for evp solver (off by default), lsr-version
31        may follow
32      - fix exchange for shear at Z-points (does not change lab_sea)
33      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
34        (to force the user to pick a time step since there is not "safe" way
35        of choosing it)
36      - add principal stress diagnostics
37      - rearrange fields for evp a little to avoid having to call a: too many
38        exchanges and b: exchanges for stress trensor components which we do
39        not have.
40      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
41        of evp, complete rewrite for lsr case (latter is does not yet work
42        in all cases)
43    o pkg/kpp: add code to have mixing in shelf ice caverns
44      - add myThid to all kpp routines (long overdue)
45    
46    checkpoint59
47    o pkg/exf:
48      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
49        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
50      - move exf header files from lower_case.h to UPPER_CASE.h ;
51        add missing cvs Header & Name
52      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
53      - add namelist param. selectStressGridPosition, exf_monFreq
54      - retire many _CLIM routines, and remove data.exf_clim
55        + params moved to data.exf
56        + climsst, climsss now handled by exf_set_gen, i.e.
57          climss?period=0 refers to constant field,
58          climss?period=-12 to monthly forcing
59      - split up namelists in data.exf
60    o pkg/seaice:
61      - remove seaice_exch and seaice_exch_uv
62      - remove superfluous exchange of theta
63      - add myThid to seaice_budget_ocean/ice
64      - add new interface for atmospheric wind forcing (C-grid only)
65        + new routine
66        + two new field (taux, tauy for stress over ice)
67        + removed one global field (DAIRN) for C-grid case only
68    o pkg/thsise
69      - 2nd set of modifs for thsice adjoint in conjunction with exf
70    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
71    
72    checkpoint58y_post
73    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
74      vertical diffusivity, similar to that in MOM4; turned on using
75      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
76      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
77    o Added capability for 3D specification of background vertical diffusion
78      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
79      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
80      "data" file that contains the 3D vertical diffusivity coefficients.
81    o ice dynamics (pkg/seaice) with thsice thermodynamics:
82      - add code within pkg thsice to advect & diffuse sea-ice fields
83      similar to (and will replace) what has been added in  seaice_advdiff.F,
84      but: - conserving Mass, Heat & Salt.
85           - better when using non-linear advection scheme (not yet fully tested)
86           - can also be used in atmospheric set-up (for now, only the diffusion).
87    
88    checkpoint58x_post
89    o IO option for global-file compact format:
90      - add options when generating topology (utils/exch2/matlab-topology-generator)
91      - add I/O capability (pkg/mdsio).
92      - adapt utils/matlab/rdmds.m to read this format.
93      for now long-line format not yet supported by pkg/mdsio (& exch2).
94    o shelfice: add a few diagnostics
95    
96    checkpoint58w_post
97    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
98      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
99      (and replace horiVertRatio in NH code).
100      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
101                         and tutorial_plume_on_slope (sensitive to truncation)
102    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
103      directly to drive seaice model (C-grid only)
104    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
105     - reintroduce computation of wind from stress,
106     - compute tau (in exf_bulkformulae.F) from windstress averaged to
107       mass points to avoid tau = 0
108     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
109    o rdmnc.m: make it work with "global" files created with gluemnc
110    o rdmnc.m : some improvements in dealing with singleton dimension
111      (tested on all testreport mnc output files).
112    o genmake2: disable pkg/profiles if netcdf test fails.
113    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
114    o move call to cal_readparms up to make calendar parameters/variable available
115      to all packages
116    
117    checkpoint58v_post
118    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
119      useDynP_inEos_Zc tested.
120    o pkg/exf: changes to properly interpolate/mask/scale initial fields
121    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
122      and portions thereof.  See read_cs.txt for description and examples.
123    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
124      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
125      following the great-circle arc between those 2 points.
126    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
127      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
128    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
129     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
130     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
131     - still needs work (not working with some options ; efficiency to improve)
132       and serious testing.
133     - use this scheme for temperature & salinity in 2 advection test exp.:
134       advect_xy & advect_xz, respectively.
135    
136    checkpoint58u_post
137    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
138    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
139    o testreport: add option "-skipdir" to skip some test.
140    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
141      momentum calculation.
142    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
143    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
144      remove checkpoint.F and the_correction_step.F (no longer used);
145      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
146    o add option (linFSConserveTr) to correct for tracer source/sink due to
147      Linear Free surface
148    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
149    o pkg/thsice: fix reading mnc-pickups
150    
151    checkpoint58t_post
152    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
153    o pkg/mdsio:
154     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
155       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
156       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
157     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
158     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
159       either MDS_READ_FIELD or MDS_WRITE_FIELD )
160     - new S/R (to replace MDSWRITEMETA), which allows to write more
161       informations (variable names, time ...) to meta files.
162     - modify rdmds.m to give back the meta file content.
163    o pkg/diagnostics: change vertical interpolation to be safer, and more
164       flexible (define p-levels to interpolate to in data.diagnostics);
165      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
166       diagnostic pointer.
167    o pkg/seaice: more cleaning up of seaice_growth, added many comments
168    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
169    o fix multi-category seaice:
170     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
171       SEAICE_MULTICATEGORY
172     - fix short wave heat flux
173    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
174       and allow to use EVP solver. Change forward lab_sea: test both EVP
175       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
176    o Initial check-in of lab_sea adjoint
177      (very similar to natl_box_adjoint/code_seaice)
178      * used C-grid and EVP solver
179      * used KPP, GM/Redi
180      * uses inAdExact=.TRUE.
181      * gradient checks fail for both ADM and TLM
182        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
183        f.d. gradients actually seem more problematic than ADM, TLM gradients;
184        issue is related to forward mismatch between g77 an ifort
185    o pkg/seaice: overhaul of thermodynamics
186     - growth.F and groatb.F are replaced by new routine seaice_growth.F
187     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
188     - move a few global fields out of SEAICE.h into seaice_growth.F and
189       make them 2D (FICE/QNETO/ ...)
190     - remove FO (it is the same as QNETO)
191     - introduce a few local fields to avoid modifying external fields such
192       as atemp, etc.
193    
194    checkpoint58s_post
195    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
196      changed exf_set_gen.F so that
197        genperiod=0 means input file is one time-constant field and
198        genperiod=-12 means input file contains 12 monthly means
199    o CG2D: use pre-computed solver main-diagonal (stored in common block);
200      this affects truncation error ; generate new output file for exp. which
201      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
202        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
203        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
204        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
205        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
206        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
207    o start implementation of deep-atmosphere and anelastic formulation
208    o verification: remove 2nd copy of input files and use script "prepare_run"
209      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
210    o mom_common/vecinv/fluxform: fix a few initialisation isssues
211    o profiles: fix for multithreaded case
212    
213    o diagnostics: rename few diags:
214      s/'PRESSURE'/'RCENTER '/g
215      s/'TICE    '/'oceFreez'/g
216      s/'TAUX    '/'oceTAUX '/g
217      s/'TAUY    '/'oceTAUY '/g
218      s/'SWFLUX  '/'oceQsw  '/g
219      s/DIFx/DFxE/g
220      s/DIFy/DFyE/g
221      and add few ocean-forcing diagnostics:
222      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
223    o modifications to pkg/seaice/growth.F and budget.F, which change results of
224      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
225      as actual snow thickness.  It now refers everywhere to effective snow
226      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
227    
228    checkpoint58r_post
229    o modifications to pkg/seaice/growth.F, which change results of
230      lab_sea experiment: fixes pertain to melting snow over open water, to
231      masking EVAP under sea ice, and to using the correct AREA variable for
232      computations of EVAP, PRECIP, HSNOW, and GHEFF
233    o add ability to read bathy, salt, and theta using MNC (off by def)
234    o add flooding algorithm and advection of HSNOW for pkg/seaice;
235      both are turned off by default and do no change any results
236    o seaice advection with pkg/thsice: a step toward the use of non-linear
237      advection scheme, but #ifdef or commented out for now (requires more EXCH).
238    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
239      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
240      in natl_box (affects results @ truncation level: update output.txt)
241    o multi-threading and IO:
242      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
243      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
244        (needed to work with SingleCpuIO): tested in all verif. exp.
245    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
246      affects the results (but none of the verification test uses this scheme).
247    o Adding some pkg/diagnostics capability to pkg/seaice
248      (will certainly be subject to changes)
249    o ctrl: adding new control variables:
250      lwflux, lwdown, evap, snowprecip, apressure, runoff
251    
252    checkpoint58q_post
253    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
254      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
255      high_res_cube configuration by 4% on Columbia.
256    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
257      add (in global_with_exf/code) a version of EXF_INTERP_READ without
258      dynamical allocation (seems to work in multi-threaded).
259    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
260      single CPU io) so that TAF does not have to see EESUPPORT.h
261    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
262    
263    checkpoint58p_post
264    o obcs: stop if obcs is used with useCDscheme = .true.
265    o shelfice:
266     - fix a sign error so that no slip at shelfice interface works
267     - remove stop for combination non-hydrostatic code and shelfice. That does
268       not mean, that the results are correct, but at least they are numerically
269       stable
270    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
271    o added adjoint exch routined for all exch*3d* routines
272      and updated flow directives
273    
274    checkpoint58o_post
275    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
276      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
277    o change controling S/R for writing pickup file (new S/R do_write_pickup)
278      and clean-up reading/writing of pickup files.
279    o fix local version of read/write pickup (NH part) in rotating_tank/code
280    o simplify EXCH interface:
281     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
282     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
283    o added the regrid package
284    o shelfice:
285     - add a simple boundary layer scheme to reduce noise
286     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
287    
288    checkpoint58n_post
289    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
290       local variable (not in common block).
291    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
292      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
293      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
294        to work with SingleCpuIO.
295    o add "_d 0" to real constant of pkg/cfc subroutines ;
296       update exp. cfc_exemple & tutorial_cfc_offline output files.
297    o multi-threading and IO:
298      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
299        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
300      - barrier before and after reading.
301      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
302      - avoid using MDS_WRITELOCAL for LAND pkg output.
303      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
304        common-block variables ; Allows multi-threading with master-thread IO.
305    o change default MAX_NO_THREADS from 32 to 4 ;
306      and stop cleanly when MAX_NO_THREADS is too small.
307    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
308    
309    checkpoint58m_post
310    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
311       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
312    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
313       keep global_ocean.90x40x15 (for AD testing) with former secondary test
314       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
315    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
316        add MITgcm_tutorials (= code + all the tutorials)
317    o ecco, option to compute cost for total ssh (mean+anom)
318    o consistent with addition of ptracer and ssh in pkg/profiles
319    o profiles: adding ptracer and ssh
320    o testreport: change multi-test output-file name
321      (from output.txt.{name} to output.{name}.txt)
322    o profiles: now ok for mutli-tiles case
323    o seaice: add 4 parameters for different advection schemes for area,
324      (effective) seaice thickness, enthalphy, and snow height. Their default
325      is the standard parameter SEAICEadvScheme
326    o calc_gw:
327     - add cosFacU in zonal viscous flux (harmonic.visc.).
328     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
329       of tutorial_plume_on_slope.
330    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
331    o calc_gw: true flux-form, account for horizontal grid spacing.
332      update rotating_tank results, but not plume_on_slope (affected at
333      truncation level, 11 digits).
334    
335    checkpoint58l_post
336    o calc_gw:
337     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
338     - remove side-drag for now (need to fix it); update plume_on_slope results.
339     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
340    o commit code to make SST/SSS weights spatially variable
341      (based on either variable in-situ or variable initial T/S weights)
342    o pkg/ecco:
343      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
344        now based on horizontally varying weights wthetaLev, wsaltLev
345      * cost_averagesflags now returns year indices in addition to day, month
346      * sflux balance is performed on annual basis
347        (sflxumm, sfluxmm2, bal_sfluxmm)
348      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
349        including separate counting and multipliers
350    o pkg/rbcs
351      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
352    
353    checkpoint58k_post
354    o testreport:
355     - always build in dir. "build" (if not there, mkdir build instead of building
356       & running in input)
357     - run in dir run (if it exists), in build otherwise.
358     - call prepare_run (if input/prepare_run exists)
359     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
360    o pkg/exf modifications to interpolation and rotation routines for more
361       reasonable treatment of North Pole singularity: for tracers North Pole
362       value is set to northernmost zonal-mean value, for zonal velocity it is
363       set to zero, and for meridional velocity it is set to northernmost value.
364    o pkg/exf/exf_check_range.F
365     - add tile index to diagnostics and move stop statement to the very
366       end of the routine.
367    o pkg/diagnostics: (diagnostics_main_init.F)
368      define title of isomorphic variables according to the current config.
369    o pkg/thsice with pkg/seaice dynamics:
370    - fix domain of computation (interior only, required for exf) and do exchanges
371    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
372    o towards a standard way of dealing with multi-threading in MONITOR
373      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
374    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
375       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
376    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
377    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
378    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
379       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
380    o tracer advection:
381     - clean-up and simplify calc_common_factors.F
382     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
383       advection subroutine (but still not used within DST advection S/R)
384    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
385    
386    checkpoint58j_post
387    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
388      from file (collects calls previously in FORWARD_STEP)
389    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
390    o adjoint store dir. adjusted accordingly
391    o genmake2
392      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
393    
394    checkpoint58i_post
395    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
396      on wind stress (SEAICEstressFactor defaults to 1.)
397    o Total number of Timers is finite (<=40): comment out 2 non-essential one
398      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
399    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
400      on CS-grid: no longer loosing mass.
401    o exf & curvilinear-grid: no longer modify longitude xC & xG.
402    o pkg/ggl90: fix sloppy output and fix a bug
403    o pkg/seaice: added SEAICEuseEVPpickup parameter
404      - Set to false in order to start EVP solver with
405        non-EVP pickup files when using SEAICEuseEVP
406      - fix sign error in diffusion in seaice_calc_rhs
407    
408    checkpoint58h_post
409    * Modifications for bottom topography control
410      o replace hFacC by _hFacC at various places
411      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
412      o add non-self-adjoint cg2d_nsa
413      o update autodiff support routines
414      o re-initialise hfac after ctrl_depth_ini
415      o works for 5x5 box, doesnt work for global_ocean.90x40x15
416    * Adding verification for 5x5 box (4-layer) bottom topography control
417    
418    checkpoint58g_post
419    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
420       used for mean seasonal cycle, mean diurnal cycle); add an example
421       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
422    o pkg/ggl90:
423      - add parameter (minimum surface kinetic energy)
424      - fix bug (avoiding division by zero)
425    o couple pkg/thsice to pkg/seaice:
426      - modify advection in seaice to accomodate new scalar fields to be advected
427      - only muliDimAdection scheme work with seaice/thsice
428      - mapping of thsice-variables to seaice-variables, back and forth
429      - does not break the verification experiments, but does not give the
430        desired results either
431    o pkg/seaice
432      - make (default) second order advection a bit less confusing?
433    
434    checkpoint58f_post
435    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
436      to pkg/seaice):
437      - new routines thsice_map_exf and thsice_get_exf provide the interface
438      - add an additional formal parameter to thsice_solve4temp
439    o pkg/exf:
440      - add new fields wspeed, snowprecip (to be able to couple to thsice)
441      - correct Stefan-Boltzmann constant
442      - new parameter for longwave surface emittance
443      - separate some stuff from exf_bulkformulae into new routines  
444        exf_radiation, exf_wind
445      - add new parameters and constants: longwave emissivity for ocean, ice
446        and snow, evaporation parameters over ice
447      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
448        either wind from stress or stress from wind
449    o pkg/thSIce:
450    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
451    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
452       and THSICE_CALC_THICKN
453    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
454    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
455      to make debugging easier.
456    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
457    o pkg/bulk_force:
458      - clean-up comments and parameters ;
459      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
460    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
461      generate new output for test-experiment: aim.5l_cs.thSI
462    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
463      testreport accordingly
464    
465    checkpoint58e_post
466    o SEAICE_CGRID adjoint done
467    o R_STAR adjoint implemented.
468      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
469      * need to sort out init. of h0facc, etc.
470    o Make pkg/profile fully independent of ecco,cost, etc. stuff
471      to be able to use it in pure forward.
472    
473    checkpoint58d_post
474    o upgrade simple test-experiment to tutorial example:
475     step.1: duplicate the experiment and (step.2) will remove the old copy.
476      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
477      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
478      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
479      tutorial_global_oce_biogeo    <- copy of dic_example
480      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
481      tutorial_plume_on_slope       <- copy of plume_on_slope
482      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
483      tutorial_global_oce_optim     <- empty for now (David ?)
484      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
485     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
486    o correct a sign problem in cost_scat.F
487    o obcs and ptracers: fix boundary conditions for advections schemes
488      with larger stencil
489    o thsice adjoint: start
490    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
491      completeness
492    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
493      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
494    o ptracers adjoint:
495      * avoid extensive recomputatations
496      * fix missing re-init. of gptr (missed by TAF)
497    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
498      me to turn off the excessive output to STDOUT that this package produces
499    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
500      and add those terms in Vector-Invariant formulation.
501    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
502      if the control period (xx_hfluxperiod etc) is 0
503    o in profiles pkg, clean routines and fix details
504    o in ecco pkg, reading ssh data:
505      fix problem in case the model does not start at iter0=0
506    o fix mnc-pickup/restart for ptracers
507    o new package prifiles:
508      code to compute profile-based cost by Gael Forget
509      (modifs in ecco, ctrl, autodiff)
510    o Benign bug fix in initialization (spotted by M. Mazloff) of
511      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
512    
513    checkpoint58c_post
514    o adjoint: finish NLFS adjoint and provide reference output in
515      verification/global_ocean.90x40x15/results_ad_nlfs
516    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
517      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
518      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
519      with SEAICE_CGRID defined.
520    o move calendarDumps from "data" to "data.cal" and clean-up the code
521      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
522    o add useEXF & useCAL flags (for now, set in hard-coded way)
523    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
524      (were missing in NH mode, and wrong in quasihydrostatic mode).
525      waiting for Chris updated version of calc_gw to add those CALLs.
526    o fix bug in quasihydrostatic S/R ;
527      add a test for this option: global_ocean.90x40x15.qshyd
528    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
529      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
530    o add on/off flag useOffLine for package OFFLINE
531    o seaice:
532      - modify advection so that it works also on the C-grid
533      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
534        problem in multi-tile runs with C-grid
535      - add flags for clipping ice velocities and/or masking solver forcing
536      - fix drag (ocean on ice) formulation and a bug that caused noise in the
537        C-grid solver
538      - added a few comments to seaice_diffusion.F
539      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
540        are now exclusive)
541      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
542        required re-ordering the code a little:
543       + make DAIRN global variable (defined in SEAICE)
544       + move computation of the viscosities eta and zeta into a new separate
545         routine (because I need to recompute them in seaice_ocean_stress.F)
546    
547    checkpoint58b_post
548    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
549      update output.txt of exp. aim.5l_cs.thSI
550    o various mnc cleanups and improvements:
551      + shrink lookup tables by factor of ~4
552      + better error reporting when running out of lookup space
553      + able to handle longer path/file names (up to 500 chars)
554    o adjoint:
555      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
556      - TBD: "hidden" mom_vecinv recomp. in dynamics
557    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
558     (allow to differentiate between forcing components using new integer flags:
559      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
560     and add new flag to put Dissipation tendency out of Adams-Bashforth.
561    o ecco
562      - enable trend removal from SSH anomaly obs.
563    o adjoint
564      - a fix for PmEpR when #undef EXACT_CONSERV
565      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
566      - try to fix "hidden" recomp. in forward_step for NLFS
567        (NLFS seems broken sometimes after I checked it in)
568    o seaice:
569     - add c-grid version of the dynamic solver:
570       + three new routines that are the c-grid substitute lsr, dynsolver
571         and ostres
572       + put a few fields that were local to dynsolver into global common
573         blocks, so that I can move the computation of stresses etc into
574         seaice_lsr (saves coding but may break the adjoint).
575     - replace more hardwired parameters by runtime parameters
576     - add ice masks that mask the rhs of the implicit solvers where there
577       is no ice (commented out in seaice_dynsolver, because i am not sure
578       if this works properly), eventually this should replace the clipping
579       of ice velocities in seaice_dynsolver to +/-40cm/s.
580    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
581      include it only where its needed
582    o move balancing of fluxes before the call of external_forcing_surf
583    o seaice:
584      - correct units of turning angles (now they are really in degrees)
585      - move computation of GWATX/Y out of main routine into dynsolver
586      - initialize GWATX/Y in seaice_init
587    o Apply mask on Fresh-Water flux (needed for SSH forcing).
588      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
589    o seaice: add runtime flags for turning angles (default to zero)
590    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
591      and trend from exf forcing and ctrl control adjustments
592    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
593      (since checkpoint57x_post)
594    o change the default rotation period to 86164.s = the Earth rotation
595    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
596      and based on a reference stratification. Tested within hs94.cs-32x32x5.
597    o seaice advection: add code for choosing between the default (2nd order
598      central differences) and multiDim advection schemes provided by
599      pkg/generic_advdiff
600    o seaice:
601      - removed all references to SEAICE_GRID.h fields from
602        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
603        (cubed-sphere configuration will change a little)
604      - grid computations in seaice_init are obsolete now.
605      - cleaned up code a little so that is easier to read (hopefully).
606      - added new (better?) discretizations of default advection and diffusion
607        (turn on with SEAICEuseFluxForm)
608      - replace 1 in 3d global fields by kSurface in growth.F
609      
610    checkpoint58a_post
611    o seaice:
612      - bug fix in advect.F
613    o shelfice:
614      - separate shelfice load anomaly from pload (breaks with time
615        dependent forcing), => introduce constant field shelficeLoadAnomaly.
616        Its default is 0., but it may be computed more cleverly from (unknown)
617        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
618        done offline. A good approximation of the pressure load anomaly is
619        necessary to avoid large initial adjustment processes underneath
620        deep-reaching shelfice.
621      - small fix in ISOMIP shelfice_thermodynamics
622      - add more sophisticated thermodynamics of Hellmer (1989), this is
623        now the default
624      - give a few constants more intuitive names
625    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
626      if bulk formulae are used in long integration (especially EmPmR). Turn
627      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
628      if balancePrintMean, the imbalance that is substracted is printed to
629      STDOUT.
630    o fix bug (typo) in obcs_apply_eta.F
631    o add a new package shelfice which enables us to model the circulation
632      underneath shelf-ice with draughts of hundreds of meters.
633     - works
634     - to do: + include improved thermodynamics
635              + check whether kSurfC (from model/inc/SURFACE.h) can be used
636                instead of new field kTopC
637              + can we use topoFile, Ro_surf and existing code in ini_depth.F
638                instead of new field R_shelfIce and new code in ini_depth.F
639                and ini_mask_etc.F?
640              + adjust vertical mixing schemes?
641    o seaice pkg:
642     - add a cpp-flag to include a simple formula for a salinity dependent
643       freezing point of sea water at the surface
644     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
645       meridional stresses are now different (and hopefully correct)
646    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
647       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
648       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
649    o pkg/diagnostics: add options and parameters for regional-statistics
650       diagnostics ; define regions by reading a region-mask from a file
651       (might add other options later)
652    o pkg/bulk_force:
653     - add option and parameters to use AIM surface-flux formulae.
654     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
655       others forcing fields (defined in PARM05, parameter file "data") are loaded
656       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
657     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
658     - use the right EXCH call for uwind,vwind (to work on CS-grid).
659     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
660       and parameters (note: calcWindStress replaces .NOT.readwindstress).
661     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
662    
663    checkpoint58
664    o add "--embed-source" option to genmake2 which, when the supporting
665      tools can be compiled (as determined by genmake2) will turn on the
666      embed_files package which then embeds the entire MITgcm source code
667      (*.[fFhc] + Makefile) used for the build within the executable
668      - requested by CNH but off by default
669      - adds a paltry <9MB to the mitgcmuv executable in most cases
670      - only writes the output when useEMBEDSRC in eedata is true
671    o clean up 3-dim. relaxation codes:
672      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
673      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
674      * Thanks to Tom Haine for testing!
675    
676    checkpoint57z_post
677    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
678      affects output (@ truncation level) of exp. plume_on_slope ; updated.
679    o fix the pickup behavior for obcs in combination with ptracers
680    o fix a bug in ptracers_external_fields_load
681    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
682      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
683    o transfered surface NH pressure to eta field (if exactConserv).
684    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
685         and update lab_sea output.txt file.
686    o completing 3-dim. relaxation code: additional term
687         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
688      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
689      * At compile time, in "EXF_OPTIONS.h" set
690          #define  ALLOW_CLIMTEMP_RELAXATION
691          #define  ALLOW_CLIMSALT_RELAXATION
692      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
693          tauThetaClimRelax3Dim = 15552000.0,
694          tauSaltClimRelax3Dim  = 15552000.0,
695      * 3 cases:
696          1) Use a constant-in-time 3-dim. field
697          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
698          3) Real-time relax. to time-evolving prescribed field
699    o Adding Laplacian-type smoothness constraint on
700      initial and boundary (forcing) controls (ic, bc)
701      * enable at compile-time via
702        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
703      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
704      * Absolute scale somewhat unclear so far
705      * no area weighting was included since no other cost term does so far
706    
707    checkpoint57y_post
708    First step for a NLFS adjoint
709    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
710    o new init. routines for calc_r_star, calc_surf_dr
711    o still need to deal with ini_masks_etc
712    o testreport seemed happy
713    checkpoint57y_pre
714    
715    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
716    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
717    o add new offset feature to offline pkg (plus minor cleanup)
718    o cfc fixes for final year of integration
719    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
720      be in GCHEM_OPTIONS).
721    
722    checkpoint57x_post
723    o fix testreport Pb in multiple test experiment.
724    o cleanup our namelist syntax in verification:
725      - make it more F95 standards compliant (some work still needed)
726      - allows the vast majority of our tests to work with gfortran
727    o Non-Hydrostatic:
728     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
729     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
730    o Allow to apply AB on T,S rather than on AB(gT,gS):
731     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
732     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
733       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
734     - need a "clever" read_pickup to restart from the other AB formulation
735    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
736    o remove some unused variables (reduces number of compiler warnings)
737    o adjoint
738      * Disable useVariableViscosity for adjoint for time being
739        (there are a number of extensive recomputations)
740      * Initialize certain variables needed for adjoint
741    
742    checkpoint57w_post
743    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
744                 fix the singleCpuIO RS version of MDSWRITEFIELD
745       and add a WARNING if using globalFiles=T with multi-processors.
746    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
747      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
748    o tracer advection scheme:
749      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
750       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
751       was not very convenient).
752      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
753       (further tests needed for the implicit DST & Flux-Limiter schemes).
754    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
755      and sRef for convenience, handy, when you want to initialize
756      ptracers in a large domain with a constant non-zero value. Also,
757      untangle ptracers_init.F a little.
758    
759    checkpoint57v_post
760    o change dome exp. to use variable viscosity in side-drag terms.
761    o remove all the files from the cfc_offline test since they are now
762      incorporated into tutorial_cfc_offline which has been producing
763      identical results for a few days of testing
764    o add new parameter: sideDragFactor to enable half-slip-side BC
765      and change side-drag S/R to use viscosity from mom_calc_visc
766      (can switch back by setting sideDragFactor=0.); affects results at
767      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
768       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
769    o vorticity & strain are now computed without masking, to account for
770      no-slip-side BC in variable viscosity calculation ; mask is applied
771      anyway later on, before computing advection/coriolis terms.
772    o modify exp4 to test new obcs support for reading from external files
773      and for passive tracers
774    o fix behavior of ptracers_monitor when monitor output is written to a
775      netcdf-file; still not independent of monitor.F (writes in the same
776      file).
777    o change default value of tRef (put a uniform, meaningful value for ocean
778      & atmos) and initialize sRef (was missing, as Martin mentioned).
779    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
780      to be proportional to enstrophy dissipation length.  Thus,
781       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
782      This is now consistent with Smagorinsky and with the manual.
783    
784    checkpoint57u_post
785    o OBCS and PTRACERS: add open boundary support for passive tracers
786      - either use homogenous (pseudo) v.Neumann conditions or prescribe
787        OB-values from file; this is not different from the way theta and salinity
788        are treated
789      - however, Orlanski-radiation conditions are not supported, and the model
790        will stop if you use pTracers and Orlanski at the same time.
791      - beefed up the rountine obcs_external_fields_load: now only those open
792        boundary values are overwritten with values from files for which there
793        are really files, otherwise the OB-fields remain untouched. This makes
794        it possible to use different OBs at different ends of the domain (as
795        with EXF)
796    o reduce number of exch calls in shap_filt (s2).
797    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
798      truncation level) 4/5 MLAdjust test results (11&12 digits match).
799    
800    checkpoint57t_post
801    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
802    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
803      same truncation, independent of the face number: affects affects several
804      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
805    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
806      note that biharmonic viscosity + no-slip was not tested in any experiment.
807    o fix bug in non-linear free-surf side-drag ; generate new output for
808      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
809    o make mnc honor the writeBinaryPrec flag for most kinds of output
810    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
811    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
812      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
813    o add brackets in multi-terms sum to get same truncation, independent of
814      the face number (manage to get exactly same value of gU,gV at the cs-edge)
815      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
816    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
817      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
818      a maximum grid-scale Reynolds number.  Also, changes all length calculations
819      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
820      Suggested values of viscosity parameters found in mom_calc_visc.
821      Many new viscosity diagnostics available.
822    
823    checkpoint57s_post
824    o Add clearing-house for viscosity calculations, mom_calc_visc and
825      correct numerous bugs in LeithD and Smagorinsky discretizations.  
826      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
827      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
828      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
829      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
830      The Strain-Tension form is now called with useStrainTensonVisc=.true.
831      ViscAhStrain and viscAhTension are now retired.
832    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
833    o In response to JMC's bug report, genmake2 now ignores any soft-links
834      that it finds in the *current* directory when searching for files.
835      Soft-links found in any other source directories will still work as
836      they did before.
837    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
838      a C routine to unlimit the stack size
839    o mnc-ify pkg/aim snapshot vars
840    o mnc-ify pkg/land as requested by Daniel
841    o various changes to mnc including:
842      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
843      - output can now be grouped so that all files within a group
844          change the ITER portion of their names in lock-step together
845      - can now read ("global") PER-FACE (in addition to PER-TILE) files
846          and works with both EXCH1 and EXCH2 (but needs more testing)
847      - writing works for all verification test cases w/ g77 on Linux
848    
849    checkpoint57r_post
850    o make MNC variable initialization happen earlier
851    o add diagnostics for (almost) each term of the momentum Eq.
852    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
853    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
854    o remove MINIMAL_TAVE_OUTPUT option ;
855      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
856    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
857      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
858    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
859    o add time-dependent SST, SSS control
860    o cost terms in ecco/ modularized (new cost_generic.F)
861    o cost_averages routines are modularized (new cost_averagesgeneric.F)
862    o new infrastructure for seaice model vs. obs misfits in seaice/
863      * driver from the_main_loop.F is seaice_cost_driver.F
864      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
865      * gradient check in Exp. 6a of natl_box_adjoint/
866    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
867      (see README file)
868    
869    checkpoint57q_post
870    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
871    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
872      - bug was reported by Jean-Michel and Ian Fenty
873    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
874      update exp. cpl_aim+ocn output.
875    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
876      Needed for high-res. runs with large global files
877      to be able to limit tapelev size
878    o Changed some tests for adjoint:
879      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
880      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
881      * global_ocean.90x40x15/ back to default 3-level checkpointing
882    o Modifications to enable scripted COMMON to MODULE conversion
883      * verification/OpenAD/code/ has necessary scripts and description;
884      * converts, compiles and runs successfully;
885    
886    checkpoint57p_post
887    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
888    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
889      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
890    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
891    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
892      (was already the case for dissipation with mom_vecinv,
893       and also the case for grad.PhiHyd when staggered-timeStep)
894      This will allow to put dissipation out-off the AB time-stepping.
895     Unfortunately, affects truncation error. Update output of exp. that "fails"
896      (cg2d matching number) and leave the others for later: front_relax(10),
897      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
898      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
899    
900    checkpoint57o_post
901    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
902      (2) its ready to be documented during the 20050801 DocFest
903    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
904      for ideal_2D_oce and lab_sea on linux_ia32_g77
905    o set to #undef CTRL_SET_OLD_MAXCVARS_30
906      in global1x1_tot/code_seaice_adj to access indices 32, 33
907      (worth another tag)
908    
909    checkpoint57n_post
910    o adding precip control xx_precip 32
911    o adding swflux control xx_swflux 33
912    o Replacing 10 forcing penalty cost routines by 1 generic.
913    o Implementing partitioning in time-mean and variable adjustment
914      for atmos. state.
915    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
916    o in natl_box_adjoint:
917      * updated exp 1 to 10
918        (but does not have time-mean vs. variable split results yet)
919    o updated global1x1/*_seaice_adj/
920      to incorporate latest changes
921    o enable useSingleCpuIO for mdsio vector routines
922      (applies in particular to tapelev I/O)
923    o removed inefficient K-loop in all active_file*control*.F
924    
925    checkpoint57m_post
926    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
927      and advect_cs (use EXCH-2 and standard cs-32 grid files).
928    o pkg/exch2: filling of face-corner halo regions is optional
929      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
930    
931    checkpoint57l_post
932     tag before updating tutorials (pre-release-2)
933    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
934       for output and interpolation of input fields onto model grid)
935    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
936       Affects results of exp. rotating_tank ; update output.txt.
937    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
938          and taking the square quantity and/or using a fraction-weight field.
939    o fix aim_diagnostics_init.F mate numbers.
940    o add mnc output capability to diagnostics/diagstat and update
941      our cvsignore files for the ACSII output generated
942    
943    checkpoint57k_post
944    o lab_sea now uses diagnostics package and provides a suite of
945      new EXF diagnostics output.
946    
947    checkpoint57j_post
948    o exf
949      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
950        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
951        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
952      * extended diagnostics output
953        - now includes all EXF variables
954        - hs, hl moved to common block
955        - separate S/R for diagnostics, called after ctrl vector is added
956        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
957        - EXFqnet contains true Qnet (i.e. includes qsw)
958      * updated verif. lab_sea, global_with_exf
959      * Rearranging hflux (exf_mapfields -> exf_getforcing)
960        to ensure that diagnostics sees a true EXFqnet
961    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
962    o diagnostics pkg: change pointers so that 1 diagnostic can be used
963      several times with different frequencies.
964    o mnc-ify the thsice package as requested by Daniel Enderton
965      - the monitor--MNC output needs work
966      - many attributes need to be added (most are currently blank)
967    o mnc-ify theaim_v23 package as requested by Daniel Enderton
968      - many attributes need to be added (most are currently blank)
969    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
970    o add Sadourny like discretization to the 4th.O vorticity advection scheme
971    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
972      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
973         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
974    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
975     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
976    
977    checkpoint57i_post
978    o Diagnostics package was changed: diagnostic allocation is now deactivated
979      by setting an empty file name in the namelist (used to be by setting 0 frequency)
980    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
981      add 1rst Order upwind vertical Shear.
982    o add a quick fix for A/B checkpointing in OFFLINE mode
983    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
984      end-run around the C/Fortran linking horror in eesup/src/timers.F
985    o added pkg/runclock: allows user to terminate run based on wall clock
986    o added non-hydrostatic scaling parameter: nh_am2
987    o pkg/my82: futile attempt to make results compiler-independent by adding
988      some "_d 0", etc. no effect.
989    o for mnc output, fill the 'T' coordinate var with myTime and create a
990      separate 'iter' variable for iteration count
991    o pkg/diagnostics:
992      add new capability: output of Global/Regional & per-level statistics ;
993      tested against monitor output (including land & thSIce) on various exp.
994    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
995    
996    checkpoint57h_done
997      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
998      data.diagnostics, data.gchem, data.ptracers) is done.
999    
1000    o pkg/diagnostics: prepare for Global/Regional statistics.
1001      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1002    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1003      and rename it: DIFFERENT_MULTIPLE
1004    
1005    checkpoint57h_post
1006    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1007    o pkg/diagnostics: change output frequency, now in seconds (instead
1008      of Nb of iterations). This requires to change data.diagnostics.
1009    checkpoint57h_pre
1010    
1011    o in mnc, let the user create the output dir if both mnc_outdir_date
1012      and mnc_outdir_num are false
1013    o add fflags() to pkg/diagnostics which allows one to specify, on a
1014      per-file basis, the file precision [default behavior is unchanged]
1015    o added diagnostics to pkg/kpp, including computation of mixed layer
1016      depth based on a temperature/density criterion
1017    o updated verification/natl_box to test the new pkg/kpp diagnostics
1018    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1019    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1020    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1021      not mnc -- this mistake was found by JMC and is now corrected
1022    
1023    checkpoint57g_post
1024    o add Adams-Bashforth 3rd Order time stepping:
1025      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1026      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1027    checkpoint57g_pre
1028    
1029    o make lambda[Theta,Salt]ClimRelax spatially varying
1030      (default remains spatially uniform constant based on tau)
1031    o added new control variables
1032      * init. uVel, vVel, etanN
1033      * lambda[Theta,Salt]ClimRelax
1034    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1035      (suggested by G. Forget)
1036    
1037    checkpoint57f_post
1038    o add parameter "baseTime" = model base time = time at iteration zero
1039      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1040      account for baseTime shift
1041    o move Coriolis arrays from PARAMS.h to GRID.h
1042    checkpoint57f_pre
1043    
1044    o mnc-ifying the seaice package
1045    o introduced an alternative length scale calculation for use in the limiting
1046      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1047    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1048    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1049      as well as grad(vort3).  Made it compatible with both approximate form
1050      for the cubed sphere and full form of these gradients.  Added flag
1051      useFullLeith to select between approximate and full form.  
1052    o add "d0" in getcon.F to reduce differences between compilers/platforms
1053      update output.txt of exp. fizhi-gridalt-hs
1054    o change port_rand funtion to allow to set the seed.
1055    o fix obscure MNC bug involving conversion between reals and integers
1056      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1057        new version is now more standards-compliant
1058    o adjoint-related modifications
1059      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1060      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1061      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1062    
1063    checkpoint57e_post
1064    o Adding eddy stress controls a la Ferreira et al.
1065    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1066    
1067    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1068      update output.txt of exp. fizhi-gridalt-hs
1069    o add more "Z" dimensions and associated coordinate vars to MNC
1070    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1071    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1072      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1073      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1074      months and years.  Requires pkg/cal.
1075    o diagnostics: add pickup functionality
1076      - off by default for backwards compatibility
1077      - current version only uses MDSIO -- MNC will be added
1078    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1079    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1080    
1081    checkpoint57d_post
1082    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1083    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1084      output from the diagnostics package
1085    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1086    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1087      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1088    o add coordinate variables to the MNC output from the diagnostics package
1089    o change MNC-flags default value: true when useMNC=TRUE
1090    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1091      the ability (off by default) to read the grid information using MNC
1092    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1093    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1094    o do snap-shot diagnostics at the middle of the time-interval (instead of
1095      at the end).
1096    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1097      new test for AIM with thSIce + slab-ocean
1098    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1099    o move state variable diagnostics to the beginning of the time step ;
1100      (note: still needs some work specially for snap-shot diagnostics)
1101      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1102    
1103    checkpoint57c_post
1104    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1105    o generate new output.txt files on faulks with g77 & the new -ieee option
1106    checkpoint57c_pre
1107    
1108    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1109      update output.txt of exp. global_ocean.90x40x15
1110    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1111      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1112    o add saltFlux(+File) forcing capability with periodicExternalForcing
1113    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1114    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1115    o improvements for the MNC output from DIAGNOSTICS:
1116      - correct handling of the unlimitied dimension
1117      - all dims now have associated coordinate variables
1118      - variables located at U, V, and Corner ("Z") points are now written
1119        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1120        *all* data points are output
1121    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1122    o added pkg/seaice/seaice_monitor.F
1123    o mdsio_readfield.F can now read files visible only to master MPI process.
1124    o pkg/seaice: some test code for ice-modified ocean stress
1125    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1126      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1127      spurious negative numbers for precipitation and humidity.  Will cause
1128      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1129    o pkg/ctrl/
1130      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1131        May be enabled via doPackDiag
1132      *  introduce z-scaling of
1133         + gradient (doZscalePack) and
1134         + control (doZscaleUnpack)
1135    o pkg/mdsio/
1136      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1137      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1138    
1139    checkpoint57b_post
1140    o simplify options in diagnostics_fill arguments (remove weird combinations)
1141    o fix MNC coordinate variables so that they now contain per-face index
1142      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1143      general, EXCH2 grids are only aligned to a "local" coordinate system
1144    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1145    o Implement instantaneous output within pkg diagnostics:
1146      setting a negative frequency in data.diagnostics produces
1147     "snap-shot" output (as opposed to time-average if freq > 0)
1148    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1149      NOTE: change ptracer diagnostics name: use 2 characters to work with
1150            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1151    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1152      becomes the coordinate variable for the 'T' dimension
1153    o add CF-style coordinate variables to MNC
1154      - just a first cut:  numbers are meaningless on the cubesphere and
1155        missing along the T axis but otherwise it works!
1156    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1157    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1158    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1159      this is based directly on what the model compute, so that the content of
1160      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1161    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1162    o clean up build options files for SunOS, in particular
1163      - remove -traditional from xmakedepend
1164      - change -xarch=v9 to -xarch=native for f77
1165      - restore use of make (not gmake)
1166      - add CC=gcc if using g77
1167    o changes per discussion of AM, JMC, & EH3 today:
1168      - move redundant "grid" variables out of "state" -- in preparation of
1169        creating proper CF-style coordinate variables and in recognition
1170        that any/all grid variables can be easily copied (eg. w/NCO) from
1171        the grid files into any of the other NetCDF files
1172      - *always* output grid variables with MDSIO (this will eventually be
1173        changed)
1174      - output MNC grid file if useMNC is true
1175    o every instance of _END_MASTER() has been found and replaced with
1176      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1177      preprocessors
1178    o re-arrange diagnostics pkg initialisation:
1179     - allow each package to extend the available diagnostics list
1180     - add some checking and fix small problems (multi-threaded, ...)
1181     - new S/R diagnostics_fill (replace fill_diagnostics):
1182       look through the short list of active diag. (instead of the long list)
1183       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1184    
1185    checkpoint57a_post
1186    o this set of changes restores TAMC compatibility
1187      tested for global_ocean.90x40x15 adjoint on trough
1188      (what a pain)
1189    
1190    checkpoint57a_pre
1191    o some modifs in tools/build_options for sunos
1192    o call ctrl_pack for ctrl at end for optimcycle=0
1193    
1194    checkpoint57
1195    o add horizontal bi-harmonic viscosity for vertical velocity
1196      - new parameter viscA4W (defaults to viscA4)
1197      - affects only non-hydrostatic code
1198      - to be done: no-slip lateral boundary conditions
1199    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1200    o implement Implicit Vertical advection for pTracers
1201    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1202      (implemented also for implicit vertical diffusion & advection)
1203    o OBCS: extend application of tracer open boundary conditions
1204      to a strip beyond the boundary of width Olx/Oly
1205    o add call monitor to TAF set of required calls (flow directives)
1206      and include in natl_box_adjoint
1207    o untangle a few ifdefs related to cost, ctrl, autodiff
1208      untangel a few ALLOW_ECCO_OPTIMIZATION
1209    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1210      (theta2, salt2 in ecco_cost_weights)
1211    
1212    checkpoint56c_post
1213    o OBCS as control variables
1214      - update ctrl_ad_diff.list, obcs_ad_diff.list
1215      - remove balance of obcs controls from default
1216      - fix index bug nobcs in ctrl_init
1217      - fix dummy fields filen in ctrl_pack
1218      - add dummy weights for obcs
1219    o lsopt: comment out fort.94 output
1220    o optim:
1221      - remove unnecessary header files
1222      - adjusted namelists
1223      - add xerbla.F to Makefile
1224    o exf:
1225      - multiple modifications of exf_check_range
1226      - unit change in exf_init_runoff from [m/year] to [m/s]
1227    o mdsio:
1228      - i/o-vector change debugLevel from debLevA to debLevB
1229    
1230    checkpoint56b_post
1231    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1232      is called from DO_THE_MODEL_IO
1233      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1234      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1235      - clean up PTRACERS_WRITE_TIMEAVE a little
1236    o add another verification experiment that tests both the cfc-pkg and
1237      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1238      reactive tendencies treated inline with regular timestepping
1239    o testreport previously did a lousy job of comparing small numbers, so
1240      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1241      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1242      testreport.
1243    o ptracers_monitor: bug fix for MPI
1244    
1245    checkpoint56a_post
1246    o GCHEM: finish reorganizating the package
1247      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1248        (introduces another 3D-array for each passive tracer, but only if
1249        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1250        gchemTendency is not needed because the timestep is done separately)
1251      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1252      - GCHEM is now---more or less cleanly---separate from PTRACERS
1253      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1254        so clear to me how that should be done in a general way.
1255    o CFC: improve formatting of output in CFC_ATMOS
1256    o PTRACERS:
1257      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1258        that ALL experiments with ptracers enable can be checked. This makes
1259        GCHEM_MONITOR obsolete.
1260      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1261        monitorFreq
1262      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1263    o add PTRACERS (PTR0[1-5]) to testreport output
1264    o exf_check_range:
1265      * default changed to .TRUE.
1266      * will check values for niter0 if debLevA, every timestep if debLevB
1267      * STOP in exf_check_range if 'out of range'
1268      * range chosen generous to allow for potential extema
1269      TBD: a version with stricter range
1270           permitted range would be runtime parameters
1271    o GMredi:
1272      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1273      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1274      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1275    o GCHEM:
1276      - move call to GCHEM_FORCING_SEP, so that it is now called before
1277        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1278      - introduced a useGCHEM runtime flag and applied it everywhere.
1279      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1280        this flag is now only visible within GCHEM-pkg routines.
1281      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1282        be replaced by a 3D array that is computed before thermodynamics; for
1283        this, the tracer ID iTracer had to be included into the parameter list
1284        of ptracers_forcing
1285      - set up forward_step to call gchem_forcing, that will replace
1286        gchem_forcing_int in ptracers_forcing
1287      - cleaning up
1288    o small cleaning of exch2: remove files that are also in eesupp/src
1289    
1290    checkpoint56
1291    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1292    o mnc: cleanup "full" files--fixes out-of-memory problem
1293    o ECCO-GODAE
1294      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1295      * fully merged and updated from SIO code
1296        windstress sign change affects
1297        - exf_inscal_[u/v]stress
1298        - sign of xx_tau[u/v] adjustments
1299        - signs in cost_scat
1300      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1301      * natl_box_adjoint updated and compressed
1302      * 2-level checkpoint switch added
1303        (tested in EXP. 1 of natl_box_adjoint)
1304      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1305    o SVD
1306      * first complete, non-hacked version for SVD calculations
1307      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1308        performed via direct access files admtlm_vector.it????
1309        (via ctrl_[un]pack)
1310      * optimcycle is used for ARPACK iteration counter
1311        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1312      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1313        and add linear transforms where necessary
1314      * controls are initial/final SST, SSS (can be extended; need to check
1315        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1316    o mdsio: filename info to both stderr, stdout
1317    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1318      from sign change
1319    
1320    checkpoint55j_post
1321    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1322      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1323    o add consistent build directories and .cvsignore files to verification
1324    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1325    o make all subroutines 30 or less characters in length for certain older
1326      compilers to work (a thorough search only turns up two routines in
1327      pkg/ptracers)
1328    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1329      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1330    
1331    checkpoint55i_post
1332    o change arrays for total vertical diffusivity (2.D if explicit,
1333      3.D if implicit) ; each ptracer uses its own background value.
1334    o added mnc/NetCDF output capability to ocn_compon_interf
1335      - added bits to verification/cpl_aim+ocn so that it can run on
1336        ITRDA and other clusters without the mpirun "-wd" option
1337    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1338      configuration
1339    o give MNC the ability to create additional files rather than
1340      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1341      - the default is just less than 2GB which is a practical limit
1342        on many systems
1343    o Compute the non-local term using either KPP vertical diffusivity (=default)
1344       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1345    
1346    checkpoint55h_post
1347    o add verification test "vermix"
1348    o remove all the *_ioinc flags and replace with the single global
1349      outputTypesInclusive flag
1350    o allow to set a vertical profile of vertical diffusivity for T & S
1351    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1352    o useMNC moved from data.mnc to data.pkg
1353    
1354    checkpoint55g_post
1355    o Renaming carbon AD experiments to comply with testreport conventions
1356    o Updating adjoint of Held-Suarez hs94.1x64x5
1357    o Fixing directives for non-ECCO forward_step, after ECCO directives
1358      have been fixed to avoid recomp. of do_oceanic_phys
1359      Works well for global_ocean.90x40x15,
1360      but recomp. issue remains for carbon
1361    o Updating adjoint output for natl_box_adjoint after
1362      pkg/ecco has been modified (see taga c55d_post)
1363    
1364    checkpoint55f_post
1365    o rename to timeave_init_fixed
1366    
1367    checkpoint55e_post
1368    o some delicate re-shuffle of store directives to avoid one
1369      extra call of do_oceanic_physics
1370      affects ecco_the_main_loop.F, do_oceanic_physics.F
1371      checkpoint_lev1_directives.h
1372    o NB: this may break global_ocean adjoint temporarily,
1373      but it is clear how to fix it. Will do later, need this now.
1374    
1375    checkpoint55d_post
1376    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1377    o ecco_cost_weights is modified to 1x1 runs
1378    o modifs to allow observations to be read in as
1379      single file or yearly files
1380    o enable to read exf forcing fields as either
1381      single file or yearly files (flag useExfYearlyFields)
1382    checkpoint55d_pre
1383    
1384    o switch between 2-level and 3-level checkpointing
1385    o add ability of MNC to write local and "partial" (eg. 2D slices where
1386      the full 3D field is never actually stored) arrays to NetCDF files
1387      with the correct (that is, the complete multi-dimensional) set of
1388      array indicies
1389      - used in mom_vecinv() to write the diagFreq output
1390      - tested (demonstrated) in verification/aim.5l_cs
1391    o further mnc-ification
1392      - add verification/lab_sea to the list with mnc setups
1393      - fix undefined mnc v-names in cd_code
1394      - add kpp to mnc output (both snapshot and timeave)
1395    o non-hydrostatic code
1396      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1397        in calc_gw.F
1398      - defaults to viscAh
1399      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1400        friction or Leith) in non-hydrostatic mode, as long as there is
1401        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1402    o pkg/cost
1403      extend simple cost functions to treat time mean quantities
1404      (T,U,V) via cost_accumulate_state from cost_tile
1405    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1406        be 2 times larger than the minimum size the advection scheme requires.
1407        now get a perfect conservation of salt in advect_cs test-exp (updated)
1408    o GGL90 (Gaspar's TKE mixed layer)
1409      - add horizontal diffusion of TKE, requires exchanges in
1410        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1411        default. In OPA there is no horizontal diffusion of TKE but the
1412        mixing coefficients are computed from a horizontal average of TKE of
1413        6 points or so. I think that diffusion has a little more physical
1414        justification.
1415      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1416        was in vain)
1417      - mask tke-variable in ggl90_init
1418    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1419    o fix biharmonic diffusion on CS-grid.
1420    o more obcs stuff
1421      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1422        for reading boundary values. This routine is called from
1423        obcs_prescribe_read
1424      - updated obcs_check
1425      - changed sponge layer relaxation parameter units for days to seconds
1426      - turned off sponge layer by default
1427      - changed argument list of OBCS_CALC to myTime+deltaTclock
1428      - fixed about 35 bugs in obcs_external_fields_load
1429    
1430    checkpoint55c_post
1431    o obcs stuff
1432      - new runtime flags useOBCSprescribe, useOBCSbalance
1433      - re-arranged obcs_calc
1434      - moved exf_getobcs to obcs_prescibe_read
1435        obcs_prescibe_read is called after ORLANSKI stuff
1436        and independent of it (executable can contain all).
1437      - updated obcs_check
1438      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1439        These may be necessary only if tangential velocities are
1440        prescribed at OB, not sure, needs testing.
1441    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1442      which simplifies the calls and passes the ifc check-bounds test
1443    
1444    checkpoint55b_post
1445    o add a 2D scalar, Z location, exchange_2 routine.
1446    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1447      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1448      affects advect_cs results (for the wrong reason): update output.txt
1449    o use a more standard discretization for biharmonic viscosity ;
1450     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1451      affects results of dome set-up: update output.txt
1452    o fix gad_advection.F (CubedSphere part), back to version 1.23
1453    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1454    
1455    checkpoint55a_post
1456    o merged code to
1457      * prescribe/read time-dependent open boundaries
1458        (works in conjunction with exf, cal)
1459      * sponge layer code for open boundaries
1460      * each boundary N/S/E/W now has its own CPP option
1461        (healthy for the adjoint)
1462    
1463    checkpoint55
1464    o up-to-date adjoint of previous breaks
1465      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1466      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1467      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1468      - carbon: * remove tr1-related adjoint verification
1469                * add ptracer as control variable
1470    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1471      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1472    
1473    checkpoint54f_post
1474    o in verification/carbin/ remove experiment related to
1475      ALLOW_PASSIVE_TRACER (array tr1 etc)
1476      code_ad/ input_ad/ results_ad
1477    
1478    o add two new packages
1479      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1480        + subject to optimization (memory)
1481      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1482        + subject to reordering (many GOTOs in the original code)
1483        + so far opps is called for every (i,j) point, and then operates in
1484          the vertical; one may want to reorder the scheme in order operate in
1485          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1486          fields)
1487    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1488      - all verification tests compile and run with linux_ia32_g77
1489      - defaults are compatible with current input files--nothing
1490        should change if you were not previously using MNC
1491      - MNC output has been added in numerous places (eg. timeave)
1492        but there are still a few writes not yet do-able with MNC
1493        (this is in progress)
1494      - flags now allow for either/or/both use of MDSIO and MNC and
1495        documentation will soon follow
1496      - numerous small formatting cleanups for ProTeX
1497    o add version info (via BUILD_INFO.h) to MNC and stdout
1498    
1499    checkpoint54e_post
1500    o add two new packages
1501      - pp81 (Packanowski and Philander, 1981), Richardson number and
1502        stratification dependent mixing
1503      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1504      - these scheme operate in a similar manner as KPP (without ghat, of
1505        course), however there is only one diffusivity that is used for both
1506        temperature and salinity (and passive tracers)ç
1507    o add offline package
1508    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1509      provided by Stephanie Dutkiewicz
1510    o genmake2: add ability to search for C compilers and cleanup test output
1511      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1512    
1513    checkpoint54d_post
1514    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1515    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1516      leading to additional shift by 5 days each year of integration
1517       (i.e. leading to considerable offset over the years)
1518    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1519    o start with no AB and no initial filtering (staggerTimeStep):
1520      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1521    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1522      (external loading & cpl import/export stay in forward_step.F)
1523    o update coupling interface to work with new staggerTimeStep
1524    o change MDSIO ptracers_pickup.
1525    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1526    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1527    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1528    
1529    checkpoint54c_post
1530    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1531      this affects (truncation error) output.txt of test-exp:
1532       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1533    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1534    o change Qnet to always be the net heat flux, (+upward).
1535      affects (truncation error) output of natl_box exp.: updated
1536    o define the max number of passive tracers in PTRACERS_SIZE.h
1537    o start to test mnc routinely in exp0
1538    o add sea-ice loading (sIceLoad) as a new forcing field.
1539    
1540    checkpoint54b_post
1541    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1542       impressive on Altix and Opteron systems)
1543    o diagnostics can now write NetCDF files through the mnc package
1544    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1545    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1546    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1547      affects (truncation error) output of lab_sea & natl_box exp.: updated
1548    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1549    
1550    checkpoint54a_post
1551    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1552    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1553    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1554    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1555      + internal_wave (shift in writing cg2d_ini_res)
1556    checkpoint54a_pre
1557    
1558    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1559      - modified verification/lab_sea and natl_box_adjoint accordingly
1560    
1561    checkpoint54
1562    checkpoint53g_post
1563    o prepare splitting of thermodynamics: store convect.counter in common block
1564    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1565      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1566    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1567    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1568    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1569    o restore adjointability
1570    
1571    checkpoint53f_post
1572    o modifications that affect AIM experiment results (update output.txt):
1573      - no advection of S at top interface Nr (pkg/generic_advdiff)
1574      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1575    o AIM pkg:
1576      - include stability function into surf.Flux derivative relative to Tsurf
1577      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1578    
1579    checkpoint53e_post
1580    o merged cylindrical coord configuration
1581    o added rotating_tank experiment
1582    checkpoint53e_pre
1583    
1584    checkpoint53d_post
1585    o faulks upgraded: re-generate output.txt that have changed:
1586       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1587    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1588    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1589    o added Sadourny discretization of Coriolis
1590      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1591      - re-enabled use of omega3 (useAbsVorticity)
1592    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1593      vector-invariant equations
1594      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1595    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1596      hopefully without new bugs
1597      - still to do: biharmonic friction for non-hydrostatic w
1598    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1599    o regenerated output for global_ocean_ebm (using -ieee)
1600    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1601      of mom_common/
1602      - simple re-arrangement of instructions within computing loop
1603    checkpoint53d_pre
1604    
1605    checkpoint53c_post
1606    o new version of coupler for AIM+thSIce and Ocean models
1607     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1608     - land: change Evaporation of snow
1609     - aim with thSIce: fix bug in snow-precip.
1610    o changes to calc_gw.F
1611     - bug fix for w^2 term near the bottom boundary
1612     - (hopefully) improve the lateral slip boundary condtions for use with
1613        partial/looped cells
1614      - because the bug fix changes two verification experiments anyway (exp5
1615        and plume on slope), change the lateral boundary condition from half slip
1616        to the value of no_slip_sides
1617    o ebm package wasnt quite up to the parallel task. Fixed that.
1618    o Adjoint of EBM package + verification
1619      * TLM OK
1620      * ADM not sufficient accuracy yet (needs further testing)
1621    
1622    checkpoint53b_post
1623    o Commiting new energy balance model to repository
1624      * package is pkg/ebm
1625      * verif. is verification/global_ocean_ebm
1626      * references are in ebm_driver.F
1627    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1628    C        Global thermohaline circulation. Part I:
1629    C        Sensitivity to atmospheric moisture transport.
1630    C        J. Climate 12(1), 71-82
1631    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1632    C        Global thermohaline circulation. Part II:
1633    C        Sensitivity with interactive transport.
1634    C        J. Climate 12(1), 83-91
1635    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1636    C        Destabilization of the thermohaline circulation
1637    C        by atmospheric eddy transports.
1638    C        J. Climate 7(12), 1870-1882
1639    o Will need long integration testing.
1640    checkpoint53b_pre
1641    
1642    o created pkg/mom_common in preparation for variable viscosity code
1643    o renamed and split ini_mnc_io
1644    o pkg/land: only liquid water can diffuse or run-off
1645    o AIM using land: soil wetness availability account for snow
1646    o added printMapIncludesZeros to EEPARMS namelist
1647    
1648    checkpoint53a_post
1649    o restore TAMC compatiility for exf_constants.h
1650      (no usage of _d in .h)
1651    o Additional storing in KPP in an attempt to fix
1652      TAMC problem with adjoint of KPP code.
1653      (no success...)
1654      Identical code works fine with TAF.
1655    o Fixed verification/natl_box_adjoint experiments.
1656      Initial conditions for Experiments 4 and 5 are now
1657      set to "SEAICE_initialHEFF=0", which is more reasonable,
1658      and hence gives results closer to that of Experiment 2.
1659      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1660    
1661    checkpoint53
1662    o stable checkpoint with up to date adjoint
1663      TLM tests only run for 1st grdchk at the moment. Its unclear if
1664      this is a code problem or a problem with resetting code for g_
1665      variables that is being autogenerated wrong.
1666      Otherwise:
1667       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1668       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1669         are both still in chaos following their security messes.
1670    
1671    checkpoint52n_post
1672    o various build (mostly genmake2) changes including:
1673      - ability to build/run more easily within Cygwin and MacOS X
1674      - more complicated Makefiles with a stronger dependence on Gnu Make
1675    o pkg/seaice modifications
1676      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1677        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1678        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1679      - changed proxy for geostrophic velocity and updated
1680        verification/lab_sea/results/* accordingly
1681      - removed ADI dynamic solver from pkg/seaice
1682      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1683        they caused a segmentation fault under certain circumstances
1684      - removed unused field WATR
1685    o bug fix in exf-package:
1686      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1687         now reflect that.
1688    o small fixes in the cal-package:
1689      - set reference date to first of January for the 'model'-calendar
1690      - failing of cal_CheckDate in cal_FullDate now actually results in a
1691        warning
1692    o small modifications in exf-package to increase flexibility:
1693      - change climtempfreeze from a constant to a runtime parameter that
1694        is specified in data.exf_clim (default = -1.9)
1695      - introduce runtime parameter windstressmax (default = 2.0) that is
1696        specified in data.exf
1697    o fix in pkg/thsice:
1698      - update Evap (Tsf changes) to be consistent with Latent heat flux
1699      - maintain snow precipitation unchanged (even if Tsf >=0).
1700     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1701    
1702    checkpoint52m_post
1703    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1704      this does not change any of the results, because myIter=0 in swfrac always
1705      lead to jwtype=2 (the default anyway), but the call makes little sense
1706      as a default
1707    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1708    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1709      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1710    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1711    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1712    o extending useSingleCpuIO option to work with new exch2 I/O format
1713      - old-style, missing-tile I/O is still accessible by defining CPP
1714        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1715    o monitor package can write to NetCDF files and/or STDOUT
1716    o fix re-definition bug in MNC_GRID_INIT_ALL()
1717    o doc/api_reference added
1718      - a framework for building an API Reference Manual using all
1719        the "protex" comments embedded in the code
1720      - see pkg/generic_advdiff, pkg/mnc for examples
1721    o MNC:
1722      - make myThid the last argument for all subroutines
1723      - new default for the grid files: NO halos
1724      - add useMNC and other run-time flags
1725      - separate per-file-group handling of the unlimited dimension
1726      - early initialization of MNC w/ flags read at the eeboot stage
1727        and lookup tables set in initialize_fixed
1728      - write all MNC output to a freshly-created directory
1729    o thermodynamics sea-ice (thsice) is now tested with testreport.
1730    o test exp. advect_cs: use the standard cs32 grid ; update output.
1731    o Added functionality to grdchk:
1732      pick global i,j,k position (or nearest wet) where to perform check.
1733    
1734    checkpoint52l_post
1735    o new land formulation:
1736      a) use ground enthalpy as prognostic variable to ensure exact
1737         energy conservation.
1738      b) account for water temperature and for latent heat of freezing
1739         in all processes (rain, run-off, ground storage)
1740      c) compute surface and ground temperature implicitly.
1741    o aim_v23 modification for new land model:
1742      a) Treat separately land / ocean / sea-ice surface fluxes
1743         to allow implicit computation of land & sea-ice surface temp.
1744      b) add snow precipitation.
1745    checkpoint52l_pre
1746    
1747    o fix problem (when 1 tile is empty) in min/max monitor.
1748    o fix bug in timeAve (u,vZetatave in common block)
1749    o no restoring terms under ice for pkg/seaice
1750    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1751    o bug fix for pkg/seaice pickups
1752    o change MNC call locations and add coordinate attributes
1753    o mask vorticity at the corner ; affects global_ocean.cs output
1754    o fix ini_curvilinear_grid ; test CS experiments with mpi
1755    o aim.5l_cs: modify sea-ice fraction input file ; update output
1756    o exf: Adding simple range check routine for exf fields after read
1757    
1758    checkpoint52k_post
1759    o removed top-level directory "diags"
1760      - we migrated these functions to pkg/timeave a long time ago
1761    o fixed bug introduced in pkg/monitor
1762    o accuracy ctrlprec = 32 insuffient for gradient checks using
1763      averaged fields (I/O via cost_averages)
1764      -> use ctrl.h in active_file*.F to control I/O precision.
1765    o paramter list of CALL ADTHE_MAIN_LOOP
1766    o added initial do_the_model_io to ecco
1767    o set all ...Freq to zero after cost_final
1768      taveFreq, dumpFreq, pChkptFreq
1769    o MAIN and ECCO differentiability restored
1770    
1771    checkpoint52j_post
1772    o fix nchklev in tamc.h for global_ocean...
1773    o Bringing flow and store directives up-to-date
1774    o Really weird thing!
1775      call do_the_model_io from the_main_loop with parameters
1776      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1777      TAF places a faulty re-call of initialise_varia
1778      after cost_final call which should not be there!
1779    checkpoint52j_pre
1780    
1781    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1782      error messages
1783    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1784    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1785      debug output
1786    o modfied mdsio_writefield.F to handle non-global files under exch2
1787    o update AIM Cubed-Sphere exp (aim.5l_cs):
1788      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1789    o update AIM Equatorial Channel exp:
1790      use standard aim_v23 pkg and change the SST fields to be more realistic.
1791    o globalFile now works with exch2
1792    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1793      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1794    o limit timeave output for hi-res integrations
1795    
1796    checkpoint52i_post
1797    o removed CPP_EEOPTIONS.h from verification/*/code
1798    o updated the tiling for global_ocean_pressure
1799    checkpoint52i_pre
1800    
1801    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1802      the old pkg/aim).
1803    
1804    checkpoint52h_pre
1805    o shortened offending lines in exch2_send_rx?.template
1806    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1807    o genmake2: add build & execute test for NetCDF code
1808    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1809      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1810    o added useSingleCPUIO flag to monitor.F and mon_out.F
1811    o added temporary hack for sea-ice dynamics on the cube:
1812      metric terms are ignored and it is assumed that
1813      there is no sea-ice on cube faces 1, 2, 4, and 5.
1814    
1815    checkpoint52f_post
1816    o added exch2 cube routines to pkg/exch2
1817    o modified hs94.cs-32x32x5 to use it
1818    o added new grid files to hs94.cs-32x32x5
1819    checkpoint52f_pre
1820    
1821    checkpoint52e_post
1822    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1823      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1824    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1825      to work with implicit vertical advection and AB ;
1826    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1827    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1828     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1829    checkpoint52e_pre
1830    
1831    o fix bug in impldiff when Nr=1 or Nr=2.
1832    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1833    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1834    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1835      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1836    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1837    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1838    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1839    
1840    checkpoint52d_post
1841    o re-tiled many expts to allow comparison in multi-processor mode
1842      - updated output accordingly
1843      - changed hs94.128x64x5 to use intial T from file rather than use the
1844        random number generator
1845    o add infrastructure in model routines for fizhi and gridalt packages
1846    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1847    o changes to permit hi-res, cubed-sphere, configuration
1848      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1849      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1850      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1851        of surface winds for the cube
1852      (A verification experiment, based on global_ocean.cs32x15, but with
1853       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1854       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1855       complete with example surface forcing files and matlab scripts to look
1856       at the output and compare it with that of global_ocean.cs32x15.)
1857    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1858       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1859       to conform to the common rule.
1860    o check-in the first version of the coupler + interfaces for multi-components
1861       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1862       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1863       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1864       - ocean and atmos. share the same horizontal grid (no interpolation).
1865       - exchanges between component and coupler is done in forward_step
1866    o new verification experiment, cpl_aim+ocn:
1867       coupled ocean - AIM atmosphere on cs32 grid.
1868    
1869    checkpoint52d_pre
1870    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1871    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1872    
1873    checkpoint52c_post
1874    o Fixing OPTIONS files for use of exf:
1875      - ALLOW_ECCO not needed
1876      - ECCO_CPPOPTIONS.h should not be included from
1877        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1878        as has been the case in the past
1879      - All cal/exf related options are currently set in
1880        single header file. Should remain so until we
1881        agree on a consistent new policy.
1882    o Removed all CPP options for cal package.
1883      cal has no more CPP options.
1884    o modified STOREs in GAD_ADVECTION
1885    o corrected key comp. for passkey
1886    
1887    checkpoint52b_post
1888    o new version: "thsice" of thermodynamic sea-ice pkg:
1889     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1890     - modify fluxes but do not change theta directly;
1891     - light cleaning of bulk_force pkg (still needed with thsice).
1892     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1893       + output_thsice.txt to test thsice & bulk_force pkgs.
1894    o put back grid & coriolis monitor output.
1895    checkpoint52b_pre
1896    
1897    o call "do_the_model_io" at the beginning (=> dump initial state)
1898    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1899    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1900      (need info on NUMBER_OF_PTRACERS)
1901    o missing PTRACERS headers in some routines
1902    o default tamc.h in pkg/autodiff supposed to crash
1903      to ensure proper customization
1904    
1905    checkpoint52a_post
1906    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1907      - moved surfaceTendencyTice from pkg/seaice to main code
1908      - subroutine FREEZE_SURFACE now limits only surface temperature
1909        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1910        => new output.txt for global_ocean.cs32x15 & global_with_exf
1911      - keep the old version of FREEZE for backward compatibility;
1912        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1913      - corresponding modifs for TAF directives
1914    o added surface flux output variables to TIMEAVE_STATVARS
1915    o time-averaged output for pkg/ptracers
1916    o fix problem with ECCO-related divided adjoint
1917      snapshot file was missing some ad-variables,
1918      but no warning issued by TAF
1919    
1920    checkpoint52a_pre
1921    o some bug fixes for #undef REAL4_IS_SLOW
1922    
1923    checkpoint52 = ecco_c52_e35
1924    o after testing adjoints of checkpoint51u_post
1925    
1926    checkpoint51u_post
1927    o this is the post-merge tag of the ecco-branch
1928      (needs another clean checkout and re-testing)
1929    o various natl_box_adjoint configs and results
1930      but no input fields
1931    o obcs adjoint not yet merged!
1932    o adding ECCO global 1x1 and 2x2 degree configs
1933    o updated/extended some store directives for seaice
1934    o pkg/ecco now containes ecco-specific part of cost function
1935    o top level routines the_main_loop, forward_step
1936      supersede those in model/src/
1937      previous input data.cost now in data.ecco
1938      (new namelist ecco_cost_nml)
1939    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1940    
1941    checkpoint51t_post
1942    o this is the pre-merge tag of the ecco-branch
1943    
1944    checkpoint51s_post
1945    o cleanup: removed various obsolete #define-s
1946    o pkg/grdchk
1947      - renamed 'ph-grd 3' to 'grad-res'
1948      - merged from ecco-branch
1949        (remaining bug fixes for obcs gradient checks)
1950      - additional high-precision output for testreport
1951        (grep for 'precision_grdchk_result')
1952    
1953    checkpoint51r_post
1954    o cleaned up or removed CPP_OPTIONS.h files
1955    o updated results for some of the tests to reflect the new
1956      optfiles (-ieee: -O0 instead of -O3)
1957    
1958    checkpoint51q_post
1959    o cd_code:
1960      - moved cd_scheme.F -> cd_code_scheme.F
1961      - separate read_checkpoint from cd_code_ini_vars.F
1962      - separated cd_code part from write_checkpoint
1963      - updated AD_SOURCE, generated .flow
1964      - added CD_CODE_VARS.h to the_main_loop
1965      - Moving cd_code specific store dir.s to pkg/cd_code
1966    o ctrl package totally restructured
1967      - pack/unpack now optional and decoupled from
1968        xx_/adxx_ I/O
1969      - ctrl_pack/unpack cleaned
1970        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1971      - confined inclusion of AD_CONFIG.h to where necessary.
1972    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1973    
1974    checkpoint51p_post
1975    o create initial cd_code package
1976      - WARNING: the initialization of fields within packages
1977        is broken because INI_FIELDS (where READ_CHECKPOINT is
1978        called) is called *before* PACKAGES_INIT_VARIABLES.
1979        This seems to be backwards since
1980        1) its important to initially zero the entire field including
1981           the "halo" region
1982        2) zeroing needs to be done *before* reading pickup info
1983           and the pickup call might or might not happen in any
1984           particular run
1985      - this needs an overhaul for R2
1986    o cleanup verification/*/code/GMREDI_OPTIONS.h
1987    o cleanup testreport
1988    
1989    checkpoint51o_post
1990    o bringing AD-related verif's up to date with genmake2
1991      - carbon/
1992      - global_ocean.90x40x15/
1993      - hs.94.1x64x5/
1994      - (front_relax/ )
1995    o (more) consistent directory structure for AD-related verif.'s
1996    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1997    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1998    o bug fix in find_alpha.F for MDJWF:
1999      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2000        change rho -> rho-rhoConst
2001      - replace call find_rho to find_rhonum
2002    o initialisation of rFlx extended to full array (required by TAF)
2003      and shifted to thermodynamics
2004    o removed PTRACERS.h in ptracers routine
2005    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2006    o Correcting initialisations for fVerU, fVerV.
2007    o helping TAF to recognize dependency on kUp for
2008      fVerU, fVerV
2009    o Replacing delZ by delR in pkg/ctrl/
2010    checkpoint51o_pre
2011    
2012    o undid all of cp51 pending some cleanups and discussion
2013    o added the [#include "AD_CONFIG.h"] statement to all files that need
2014       it for adjoint/tl #defines
2015     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2016     o removed tools/genmake since it no longer works
2017    
2018    checkpoint51n_post
2019    o modifications to make FREEZE flux visible to pkg/kpp
2020      - moved surfaceTendencyTice from pkg/seaice to main code
2021      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2022      - subroutine FREEZE now limits only surface temperature
2023        (this means new output.txt for global_ocean.90x40x15,
2024         global_ocean.cs32x15, and global_with_exf)
2025    o added surface flux output variables to TIMEAVE_STATVARS
2026    
2027    checkpoint51n_pre
2028    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2029    o added [#include "AD_CONFIG.h"] to all files that use the following
2030      defines:
2031      - ALLOW_ADJOINT_RUN
2032      - ALLOW_TANGENTLINEAR_RUN
2033      - ALLOW_ECCO_OPTIMIZATION
2034    
2035    checkpoint51m_post
2036    o incorporating changes to get TAMC/TAF working in genmake2
2037      - added new TAMC/TAF targets to the Makefile
2038      - various cleanups related to package handling
2039      - these changes should have no impact on the forward model
2040    
2041    checkpoint51l_post
2042    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2043     - faster algorithm for cal_addtime.F
2044     - higher precision arithmetic, where needed
2045     - pkg/exf *startdate variables changed from calendar date to
2046       model integration time
2047    
2048    checkpoint51l_pre
2049    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2050    o enable to apply restoring on S & T only in a latitude band.
2051    o update output (external_forcing_surf modif. change truncation errors)
2052       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2053    
2054    checkpoint51k_post
2055    o change default to: useNHMTerms=.FALSE.
2056     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2057       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2058     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2059        exp1, ideal_2D_oce
2060     - change data file of oceanic exp (leave the results unchanged for now)
2061       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2062    o set gravitySign automatically according to the vertical coordinate used
2063      (and change sign: back to "logical" value: +1 when R increases downward)
2064    o added an include barrier to the default CPP_OPTIONS.h and
2065      removed the #include "PACKAGES_CONFIG.h" from it
2066    o fix a bug in mom_fluxform (from chk51j_post)
2067    
2068    checkpoint51j_post
2069    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2070    o adjusted some flow directives (dynamics, thermodynamics)
2071    o added cubed-sphere case to test cost function
2072    o heckpoint_lev?_directives.h now include
2073      pkg-specific directives, whenever those are enabled.
2074    o Moving pkg-specific flow directives to corresponding pkg
2075      Moving pkg-specific differentiation list to corresponding pkg
2076      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2077      ---> conventions are
2078           - pkg_ad.flow
2079           - pkg_ad_diff.list
2080           - pkg_ad_check_lev?_dir.h
2081    
2082    checkpoint51i_post
2083    o merge of the branch-genmake2
2084      - knowingly breaks the older genmake
2085      - automatic generation of all ALLOW_${PKG_NAME} defines
2086      - new testreport supersedes older testscript
2087    o large number of package inclusion and header cleanups
2088    checkpoint51i_pre
2089    
2090    o new output for adjoin of global ocean vector invariant
2091    o fix for checkpoint of thermodynamic seaice and bulk_force
2092    o Steph gchem various cleanups
2093    
2094    checkpoint 51h_pre
2095    o fixed some single quotes
2096    o modify gchem pkg to be more versatile
2097    o modifications to clean up dic pkg
2098    o add pkg/cfc
2099    
2100    checkpoint51g_post
2101    o provide links for ARPACK and ADM*TLM
2102    o start removing verification/vero/
2103    o update AD-related stuff
2104      (in particular some IF-statements in model/src/ routines)
2105    o adding to verification/global_ocean.90x40x15/ adjoint of
2106      vector invariant setup
2107    
2108    checkpoint51f_post
2109    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2110    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2111      of tracer Green's fucntions for ocean inversion project.
2112    
2113    checkpoint51f_pre
2114    o Added on-the-fly spatial interpolation capability
2115        "USE_EXF_INTERPOLATION" to pkg/exf.
2116      - This is a temporary Cartesian-grid hack until
2117        the super-duper ESMF coupler becomes available.
2118      - See verification/global_with_exf/README for usage example.
2119      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2120        flags and modified pkg/seaice accordingly.
2121    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2122        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2123        non-local transport term.
2124    
2125    checkpoint51e_post
2126    o pkg/mom_vecinv:
2127      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2128      - add time-ave diagnostic of vorticity advection.
2129    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2130    o atmospheric geopotential: - include water vapor effect;
2131                                - use p^kappa in p* scaling.
2132    o land pkg: read initial state from files.
2133    o AIM : add stratospheric drag in the upper level
2134    
2135    checkpoint51d_post
2136    o change function ILNBLNK (=> last non-blank char.) to return zero
2137      (instead of the string length) when the string. char is empty
2138    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2139    o modif's to restore TAMC compatibility
2140      - avoid "_d" constructs in PARAMETER declarations
2141      - avoid interrupting lines by comment lines
2142    o Use cluster local disks for purely local I/O
2143      vs. globally visible disks needed for ctrl stuff
2144      (merged from ecco-branch)
2145      - new active_file_loc... and mdsio_..._loc routines
2146      - affected packages: autodiff, ctrl, grdchk, mdsio
2147    
2148    checkpoint51c_post
2149    o introducing integer flag debugLevel
2150      - debLevZero: suppress all output
2151      - debLevA: standard
2152      - debLevB: equivalent to current debugMode=.TRUE.
2153    o introducing pathname variable mdsioLocalDir for mdsio
2154      that can be specified at runtime
2155      (relevant for cluster I/O to local disk)
2156    `
2157    >>>checkpoint51b_post
2158    adjoint of ptracers
2159    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2160    o extended state in checkpoint_lev?, etc.
2161    o alternative ctrl/cost with tr1 or ptracer
2162    o new comlev1_bibj_ptracers
2163    o new ptracers.flow
2164    o made ptracers_forcing same as external_forcing_s
2165    o added verification for adjoint with ptracers
2166      - adm. grdchk fail so far
2167      - tlm. grdchk OK
2168      - checked tapelev/comlev recomputations: OK
2169    <<<checkpoint51b_pre
2170    
2171    checkpoint51a_post
2172    o added code for biogeochemistry package
2173      - new pkgs: dic, gchem
2174      - new subroutine in ptracers
2175    o modify code for biogeo packages
2176      - in model/src and pkg/ptracers
2177    
2178    checkpoint51
2179    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2180      - autodiff, ctrl, exf, grdchk, seaice
2181      kept separate packages
2182      - cost, ecco, obcs
2183    o updating verification/internal_wave, verification/lab_sea
2184      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2185    
2186    checkpoint50i_post
2187    o Preparing next differentiable checkpoint and sync
2188      of MAIN vs. ecco-branch
2189      - 1st step: this one is differentiable
2190      - 2nd step: next(! not this) checkpoint will have updated packages
2191                  from ecco-branch)
2192    
2193    checkpoint50h_post
2194    o new package "land": provide surface BC for AIM.
2195    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2196    o AIM: use true log-P extrapolation for near surface temp (= as in
2197        F.Molteni paper) ; update aim.5l_cs output.
2198    o New variable in PARM03 for more flexible pickups
2199    o somewhat cleaned package initialisation sequence for
2200      ctrl/ cost/ ecco/ in packages_... routines
2201    
2202    checkpoint50g_post
2203    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2204      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2205      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2206        made the default because of faster convergence than ADI
2207    
2208    checkpoint50f_post
2209    o exf totally restructured
2210      - replaced all exf_set_ routines by one generic exf_set_gen.F
2211        and made sure it's still differentiable
2212      - split exf_getffields.F into new exf_bulkformulae.F
2213      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2214      - updated adjoint/makefile and relevant verif. accordingly
2215    
2216    checkpoint50f_pre
2217     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2218          + change Evap over land. (update aim.5l_cs output)
2219     o added missing .cvsignores and made uniform across expts
2220     o changed configuration of tidal_basin_2d expt
2221     o added pkg/debug functions for tracing code in fatal crashes
2222     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2223     o new fn in pkg/monitor to stop model if solution grows too big
2224     o removed lots of single quotes from comments
2225    
2226    checkpoint50e_post
2227    o make KPP work with PTRACERS
2228     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2229       nearly a copy of kpp_transport_s
2230     - there is no analogue to SurfaceTendencyS, so I have to use
2231       gPtr(of the surface layer) instead
2232    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2233    checkpoint50e_pre
2234    
2235    checkpoint50d_post
2236    o change kpp output from multiple-record state files to single-record state
2237      files analogous to write_state.F
2238    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2239      analogous to the cg2d-related output.
2240    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2241      so that writing to internal file fn (with length 512) fails.
2242    checkpoint50d_pre
2243    
2244    checkpoint50c_post
2245    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2246    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2247    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2248    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2249    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2250    
2251    checkpoint50c_pre
2252    Merging from release1_p13:
2253    o bug fix for pkg/seaice dynamic solver
2254    o Added SEAICE_initialHEFF to pkg/seaice
2255    
2256    checkpoint50b_post
2257    o store u*,v* in gU,V instead of in guNm1,gvNm1
2258    o in order to put the momForcing out of the Adams-Bashforth:
2259      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2260      to timestep.F
2261    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2262    o re-generate output for highly sensitive test-exp:
2263       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2264    
2265    checkpoint50b_pre
2266    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2267    o corrected CPP option mismatch in exf_Bulk... functions for case
2268      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2269    
2270    checkpoint50a_post
2271    o Bug fix for merging between c50 and KPP.
2272      ikey was passed from thermodynamics to kpp_calc via
2273      common block rather than being recomputed in kpp_calc,
2274      in contradiction with new key itdkey.
2275      New key ikppkey created, and tamc.h headers updated.
2276    
2277    checkpoint50
2278    - 2nd step of merge with ecco-branch:
2279      merge changes in ecco-branch back into main trunk
2280    - bug fix in find_alpha
2281    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2282    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2283    - merged some sliced AD support routines
2284    
2285    checkpoint49
2286    merged from ecco-branch:
2287    o exf:
2288      - Enable initialisation of forcing fields to constant
2289        (runtime) values.
2290      - in exf_getffields.F
2291        Reduce i-/j-loop to interior domain, discarding overlaps.
2292        That also fixes wrong TAF-key computations for key_1, key_2
2293        with bulf formulae.
2294      - exf_init.F modify #ifdef for exf_init_evap
2295      - exf_getffieldrec.F, ctrl_getrec.F
2296        The following INT-usages are not safe:
2297          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2298          fldcount = int(fldsecs/fldperiod) + 1
2299        and were modified.
2300    o autodiff: checkpoint_lev...
2301      - updated storing for bulk formulae (some arrays were missing)
2302      - added state for seaice package
2303      - synchronized with main branch
2304    o DIVA:
2305      Modif.s in
2306      - the_main_loop.F
2307      - the_model_main.F
2308      and added cost_final_restore.F cost_final_store.F
2309      o With these changes, it is possible to fully separate
2310        the first forward run to compute the cost function (mdthe_main_loop)
2311        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2312        into separate model executions.
2313        This enables better tuning of DIVA to given queue sizes.
2314      o Loss of cost function value in consecutive DIVA runs is
2315        fixed by storing to 'costfinal' file.
2316      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2317        beginning/end of adjoint integration is accounted for.
2318      The current changes apply to TAF-1.4.26.
2319      TAF has one remaining bug, requiring one manual change
2320      (see MITgcm manual).
2321    o cal: synchronized between MAIN and ecco-branch
2322    
2323    checkpoint48i_post
2324    o Changes to restore differentiability of code w.r.t. previous tag
2325      (mostly adding new routines to make list and replacing
2326      pressure by totPhiHyd).
2327    o Updated and merged grdchk package
2328      - has both ADM and TLM checks
2329      - works for single- and multi-proc.
2330      - output cleaned
2331      - worked successfully for parallel DIVA
2332    o genmake:
2333      - Adding -platform=SP4
2334      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2335    o Modif. for DIVA:
2336      ctrl_unpack should not be called in intermediate DIVA interval.
2337      (similar thing would apply for active files such as
2338      tbar, sbar, psbar, which should not be reinitialised;
2339      only relevant for ecco-branch)
2340    
2341    checkpoint48h_post
2342  o improve "ini_p_ground" when using finite difference form for calc_phi_hyd  o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2343  o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F  o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2344  o Added SEAICE_initialHEFF to pkg/seaice  o Added SEAICE_initialHEFF to pkg/seaice
2345    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2346    
2347  checkpoint48g_post  checkpoint48g_post
2348  --- EOS:  --- EOS:

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