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revision 1.125 by jmc, Mon Jan 27 21:42:19 2003 UTC revision 1.797 by mlosch, Sun Apr 22 23:08:39 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice: fix bug in evp solver, while doing that
8      - change (improve?) discretization of stress computations for both
9        cgrid-lsr and evp solver
10      - add a new routine to compute strain rates
11      - the above changes lab_sea results
12      - add no slip conditions for evp solver (off by default), lsr-version
13        may follow
14      - fix exchange for shear at Z-points (does not change lab_sea)
15      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
16        (to force the user to pick a time step since there is not "safe" way
17        of choosing it)
18      - add principal stress diagnostics
19    o pkg/kpp: add code to have mixing in shelf ice caverns
20    
21    checkpoint59
22    o pkg/exf:
23      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
24        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
25      - move exf header files from lower_case.h to UPPER_CASE.h ;
26        add missing cvs Header & Name
27      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
28      - add namelist param. selectStressGridPosition, exf_monFreq
29      - retire many _CLIM routines, and remove data.exf_clim
30        + params moved to data.exf
31        + climsst, climsss now handled by exf_set_gen, i.e.
32          climss?period=0 refers to constant field,
33          climss?period=-12 to monthly forcing
34      - split up namelists in data.exf
35    o pkg/seaice:
36      - remove seaice_exch and seaice_exch_uv
37      - remove superfluous exchange of theta
38      - add myThid to seaice_budget_ocean/ice
39      - add new interface for atmospheric wind forcing (C-grid only)
40        + new routine
41        + two new field (taux, tauy for stress over ice)
42        + removed one global field (DAIRN) for C-grid case only
43    o pkg/thsise
44      - 2nd set of modifs for thsice adjoint in conjunction with exf
45    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
46    
47    checkpoint58y_post
48    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
49      vertical diffusivity, similar to that in MOM4; turned on using
50      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
51      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
52    o Added capability for 3D specification of background vertical diffusion
53      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
54      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
55      "data" file that contains the 3D vertical diffusivity coefficients.
56    o ice dynamics (pkg/seaice) with thsice thermodynamics:
57      - add code within pkg thsice to advect & diffuse sea-ice fields
58      similar to (and will replace) what has been added in  seaice_advdiff.F,
59      but: - conserving Mass, Heat & Salt.
60           - better when using non-linear advection scheme (not yet fully tested)
61           - can also be used in atmospheric set-up (for now, only the diffusion).
62    
63    checkpoint58x_post
64    o IO option for global-file compact format:
65      - add options when generating topology (utils/exch2/matlab-topology-generator)
66      - add I/O capability (pkg/mdsio).
67      - adapt utils/matlab/rdmds.m to read this format.
68      for now long-line format not yet supported by pkg/mdsio (& exch2).
69    o shelfice: add a few diagnostics
70    
71    checkpoint58w_post
72    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
73      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
74      (and replace horiVertRatio in NH code).
75      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
76                         and tutorial_plume_on_slope (sensitive to truncation)
77    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
78      directly to drive seaice model (C-grid only)
79    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
80     - reintroduce computation of wind from stress,
81     - compute tau (in exf_bulkformulae.F) from windstress averaged to
82       mass points to avoid tau = 0
83     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
84    o rdmnc.m: make it work with "global" files created with gluemnc
85    o rdmnc.m : some improvements in dealing with singleton dimension
86      (tested on all testreport mnc output files).
87    o genmake2: disable pkg/profiles if netcdf test fails.
88    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
89    o move call to cal_readparms up to make calendar parameters/variable available
90      to all packages
91    
92    checkpoint58v_post
93    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
94      useDynP_inEos_Zc tested.
95    o pkg/exf: changes to properly interpolate/mask/scale initial fields
96    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
97      and portions thereof.  See read_cs.txt for description and examples.
98    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
99      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
100      following the great-circle arc between those 2 points.
101    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
102      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
103    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
104     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
105     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
106     - still needs work (not working with some options ; efficiency to improve)
107       and serious testing.
108     - use this scheme for temperature & salinity in 2 advection test exp.:
109       advect_xy & advect_xz, respectively.
110    
111    checkpoint58u_post
112    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
113    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
114    o testreport: add option "-skipdir" to skip some test.
115    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
116      momentum calculation.
117    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
118    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
119      remove checkpoint.F and the_correction_step.F (no longer used);
120      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
121    o add option (linFSConserveTr) to correct for tracer source/sink due to
122      Linear Free surface
123    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
124    o pkg/thsice: fix reading mnc-pickups
125    
126    checkpoint58t_post
127    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
128    o pkg/mdsio:
129     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
130       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
131       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
132     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
133     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
134       either MDS_READ_FIELD or MDS_WRITE_FIELD )
135     - new S/R (to replace MDSWRITEMETA), which allows to write more
136       informations (variable names, time ...) to meta files.
137     - modify rdmds.m to give back the meta file content.
138    o pkg/diagnostics: change vertical interpolation to be safer, and more
139       flexible (define p-levels to interpolate to in data.diagnostics);
140      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
141       diagnostic pointer.
142    o pkg/seaice: more cleaning up of seaice_growth, added many comments
143    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
144    o fix multi-category seaice:
145     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
146       SEAICE_MULTICATEGORY
147     - fix short wave heat flux
148    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
149       and allow to use EVP solver. Change forward lab_sea: test both EVP
150       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
151    o Initial check-in of lab_sea adjoint
152      (very similar to natl_box_adjoint/code_seaice)
153      * used C-grid and EVP solver
154      * used KPP, GM/Redi
155      * uses inAdExact=.TRUE.
156      * gradient checks fail for both ADM and TLM
157        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
158        f.d. gradients actually seem more problematic than ADM, TLM gradients;
159        issue is related to forward mismatch between g77 an ifort
160    o pkg/seaice: overhaul of thermodynamics
161     - growth.F and groatb.F are replaced by new routine seaice_growth.F
162     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
163     - move a few global fields out of SEAICE.h into seaice_growth.F and
164       make them 2D (FICE/QNETO/ ...)
165     - remove FO (it is the same as QNETO)
166     - introduce a few local fields to avoid modifying external fields such
167       as atemp, etc.
168    
169    checkpoint58s_post
170    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
171      changed exf_set_gen.F so that
172        genperiod=0 means input file is one time-constant field and
173        genperiod=-12 means input file contains 12 monthly means
174    o CG2D: use pre-computed solver main-diagonal (stored in common block);
175      this affects truncation error ; generate new output file for exp. which
176      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
177        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
178        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
179        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
180        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
181        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
182    o start implementation of deep-atmosphere and anelastic formulation
183    o verification: remove 2nd copy of input files and use script "prepare_run"
184      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
185    o mom_common/vecinv/fluxform: fix a few initialisation isssues
186    o profiles: fix for multithreaded case
187    
188    o diagnostics: rename few diags:
189      s/'PRESSURE'/'RCENTER '/g
190      s/'TICE    '/'oceFreez'/g
191      s/'TAUX    '/'oceTAUX '/g
192      s/'TAUY    '/'oceTAUY '/g
193      s/'SWFLUX  '/'oceQsw  '/g
194      s/DIFx/DFxE/g
195      s/DIFy/DFyE/g
196      and add few ocean-forcing diagnostics:
197      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
198    o modifications to pkg/seaice/growth.F and budget.F, which change results of
199      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
200      as actual snow thickness.  It now refers everywhere to effective snow
201      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
202    
203    checkpoint58r_post
204    o modifications to pkg/seaice/growth.F, which change results of
205      lab_sea experiment: fixes pertain to melting snow over open water, to
206      masking EVAP under sea ice, and to using the correct AREA variable for
207      computations of EVAP, PRECIP, HSNOW, and GHEFF
208    o add ability to read bathy, salt, and theta using MNC (off by def)
209    o add flooding algorithm and advection of HSNOW for pkg/seaice;
210      both are turned off by default and do no change any results
211    o seaice advection with pkg/thsice: a step toward the use of non-linear
212      advection scheme, but #ifdef or commented out for now (requires more EXCH).
213    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
214      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
215      in natl_box (affects results @ truncation level: update output.txt)
216    o multi-threading and IO:
217      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
218      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
219        (needed to work with SingleCpuIO): tested in all verif. exp.
220    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
221      affects the results (but none of the verification test uses this scheme).
222    o Adding some pkg/diagnostics capability to pkg/seaice
223      (will certainly be subject to changes)
224    o ctrl: adding new control variables:
225      lwflux, lwdown, evap, snowprecip, apressure, runoff
226    
227    checkpoint58q_post
228    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
229      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
230      high_res_cube configuration by 4% on Columbia.
231    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
232      add (in global_with_exf/code) a version of EXF_INTERP_READ without
233      dynamical allocation (seems to work in multi-threaded).
234    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
235      single CPU io) so that TAF does not have to see EESUPPORT.h
236    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
237    
238    checkpoint58p_post
239    o obcs: stop if obcs is used with useCDscheme = .true.
240    o shelfice:
241     - fix a sign error so that no slip at shelfice interface works
242     - remove stop for combination non-hydrostatic code and shelfice. That does
243       not mean, that the results are correct, but at least they are numerically
244       stable
245    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
246    o added adjoint exch routined for all exch*3d* routines
247      and updated flow directives
248    
249    checkpoint58o_post
250    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
251      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
252    o change controling S/R for writing pickup file (new S/R do_write_pickup)
253      and clean-up reading/writing of pickup files.
254    o fix local version of read/write pickup (NH part) in rotating_tank/code
255    o simplify EXCH interface:
256     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
257     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
258    o added the regrid package
259    o shelfice:
260     - add a simple boundary layer scheme to reduce noise
261     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
262    
263    checkpoint58n_post
264    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
265       local variable (not in common block).
266    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
267      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
268      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
269        to work with SingleCpuIO.
270    o add "_d 0" to real constant of pkg/cfc subroutines ;
271       update exp. cfc_exemple & tutorial_cfc_offline output files.
272    o multi-threading and IO:
273      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
274        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
275      - barrier before and after reading.
276      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
277      - avoid using MDS_WRITELOCAL for LAND pkg output.
278      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
279        common-block variables ; Allows multi-threading with master-thread IO.
280    o change default MAX_NO_THREADS from 32 to 4 ;
281      and stop cleanly when MAX_NO_THREADS is too small.
282    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
283    
284    checkpoint58m_post
285    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
286       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
287    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
288       keep global_ocean.90x40x15 (for AD testing) with former secondary test
289       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
290    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
291        add MITgcm_tutorials (= code + all the tutorials)
292    o ecco, option to compute cost for total ssh (mean+anom)
293    o consistent with addition of ptracer and ssh in pkg/profiles
294    o profiles: adding ptracer and ssh
295    o testreport: change multi-test output-file name
296      (from output.txt.{name} to output.{name}.txt)
297    o profiles: now ok for mutli-tiles case
298    o seaice: add 4 parameters for different advection schemes for area,
299      (effective) seaice thickness, enthalphy, and snow height. Their default
300      is the standard parameter SEAICEadvScheme
301    o calc_gw:
302     - add cosFacU in zonal viscous flux (harmonic.visc.).
303     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
304       of tutorial_plume_on_slope.
305    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
306    o calc_gw: true flux-form, account for horizontal grid spacing.
307      update rotating_tank results, but not plume_on_slope (affected at
308      truncation level, 11 digits).
309    
310    checkpoint58l_post
311    o calc_gw:
312     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
313     - remove side-drag for now (need to fix it); update plume_on_slope results.
314     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
315    o commit code to make SST/SSS weights spatially variable
316      (based on either variable in-situ or variable initial T/S weights)
317    o pkg/ecco:
318      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
319        now based on horizontally varying weights wthetaLev, wsaltLev
320      * cost_averagesflags now returns year indices in addition to day, month
321      * sflux balance is performed on annual basis
322        (sflxumm, sfluxmm2, bal_sfluxmm)
323      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
324        including separate counting and multipliers
325    o pkg/rbcs
326      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
327    
328    checkpoint58k_post
329    o testreport:
330     - always build in dir. "build" (if not there, mkdir build instead of building
331       & running in input)
332     - run in dir run (if it exists), in build otherwise.
333     - call prepare_run (if input/prepare_run exists)
334     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
335    o pkg/exf modifications to interpolation and rotation routines for more
336       reasonable treatment of North Pole singularity: for tracers North Pole
337       value is set to northernmost zonal-mean value, for zonal velocity it is
338       set to zero, and for meridional velocity it is set to northernmost value.
339    o pkg/exf/exf_check_range.F
340     - add tile index to diagnostics and move stop statement to the very
341       end of the routine.
342    o pkg/diagnostics: (diagnostics_main_init.F)
343      define title of isomorphic variables according to the current config.
344    o pkg/thsice with pkg/seaice dynamics:
345    - fix domain of computation (interior only, required for exf) and do exchanges
346    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
347    o towards a standard way of dealing with multi-threading in MONITOR
348      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
349    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
350       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
351    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
352    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
353    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
354       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
355    o tracer advection:
356     - clean-up and simplify calc_common_factors.F
357     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
358       advection subroutine (but still not used within DST advection S/R)
359    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
360    
361    checkpoint58j_post
362    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
363      from file (collects calls previously in FORWARD_STEP)
364    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
365    o adjoint store dir. adjusted accordingly
366    o genmake2
367      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
368    
369    checkpoint58i_post
370    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
371      on wind stress (SEAICEstressFactor defaults to 1.)
372    o Total number of Timers is finite (<=40): comment out 2 non-essential one
373      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
374    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
375      on CS-grid: no longer loosing mass.
376    o exf & curvilinear-grid: no longer modify longitude xC & xG.
377    o pkg/ggl90: fix sloppy output and fix a bug
378    o pkg/seaice: added SEAICEuseEVPpickup parameter
379      - Set to false in order to start EVP solver with
380        non-EVP pickup files when using SEAICEuseEVP
381      - fix sign error in diffusion in seaice_calc_rhs
382    
383    checkpoint58h_post
384    * Modifications for bottom topography control
385      o replace hFacC by _hFacC at various places
386      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
387      o add non-self-adjoint cg2d_nsa
388      o update autodiff support routines
389      o re-initialise hfac after ctrl_depth_ini
390      o works for 5x5 box, doesnt work for global_ocean.90x40x15
391    * Adding verification for 5x5 box (4-layer) bottom topography control
392    
393    checkpoint58g_post
394    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
395       used for mean seasonal cycle, mean diurnal cycle); add an example
396       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
397    o pkg/ggl90:
398      - add parameter (minimum surface kinetic energy)
399      - fix bug (avoiding division by zero)
400    o couple pkg/thsice to pkg/seaice:
401      - modify advection in seaice to accomodate new scalar fields to be advected
402      - only muliDimAdection scheme work with seaice/thsice
403      - mapping of thsice-variables to seaice-variables, back and forth
404      - does not break the verification experiments, but does not give the
405        desired results either
406    o pkg/seaice
407      - make (default) second order advection a bit less confusing?
408    
409    checkpoint58f_post
410    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
411      to pkg/seaice):
412      - new routines thsice_map_exf and thsice_get_exf provide the interface
413      - add an additional formal parameter to thsice_solve4temp
414    o pkg/exf:
415      - add new fields wspeed, snowprecip (to be able to couple to thsice)
416      - correct Stefan-Boltzmann constant
417      - new parameter for longwave surface emittance
418      - separate some stuff from exf_bulkformulae into new routines  
419        exf_radiation, exf_wind
420      - add new parameters and constants: longwave emissivity for ocean, ice
421        and snow, evaporation parameters over ice
422      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
423        either wind from stress or stress from wind
424    o pkg/thSIce:
425    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
426    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
427       and THSICE_CALC_THICKN
428    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
429    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
430      to make debugging easier.
431    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
432    o pkg/bulk_force:
433      - clean-up comments and parameters ;
434      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
435    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
436      generate new output for test-experiment: aim.5l_cs.thSI
437    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
438      testreport accordingly
439    
440    checkpoint58e_post
441    o SEAICE_CGRID adjoint done
442    o R_STAR adjoint implemented.
443      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
444      * need to sort out init. of h0facc, etc.
445    o Make pkg/profile fully independent of ecco,cost, etc. stuff
446      to be able to use it in pure forward.
447    
448    checkpoint58d_post
449    o upgrade simple test-experiment to tutorial example:
450     step.1: duplicate the experiment and (step.2) will remove the old copy.
451      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
452      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
453      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
454      tutorial_global_oce_biogeo    <- copy of dic_example
455      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
456      tutorial_plume_on_slope       <- copy of plume_on_slope
457      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
458      tutorial_global_oce_optim     <- empty for now (David ?)
459      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
460     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
461    o correct a sign problem in cost_scat.F
462    o obcs and ptracers: fix boundary conditions for advections schemes
463      with larger stencil
464    o thsice adjoint: start
465    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
466      completeness
467    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
468      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
469    o ptracers adjoint:
470      * avoid extensive recomputatations
471      * fix missing re-init. of gptr (missed by TAF)
472    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
473      me to turn off the excessive output to STDOUT that this package produces
474    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
475      and add those terms in Vector-Invariant formulation.
476    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
477      if the control period (xx_hfluxperiod etc) is 0
478    o in profiles pkg, clean routines and fix details
479    o in ecco pkg, reading ssh data:
480      fix problem in case the model does not start at iter0=0
481    o fix mnc-pickup/restart for ptracers
482    o new package prifiles:
483      code to compute profile-based cost by Gael Forget
484      (modifs in ecco, ctrl, autodiff)
485    o Benign bug fix in initialization (spotted by M. Mazloff) of
486      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
487    
488    checkpoint58c_post
489    o adjoint: finish NLFS adjoint and provide reference output in
490      verification/global_ocean.90x40x15/results_ad_nlfs
491    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
492      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
493      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
494      with SEAICE_CGRID defined.
495    o move calendarDumps from "data" to "data.cal" and clean-up the code
496      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
497    o add useEXF & useCAL flags (for now, set in hard-coded way)
498    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
499      (were missing in NH mode, and wrong in quasihydrostatic mode).
500      waiting for Chris updated version of calc_gw to add those CALLs.
501    o fix bug in quasihydrostatic S/R ;
502      add a test for this option: global_ocean.90x40x15.qshyd
503    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
504      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
505    o add on/off flag useOffLine for package OFFLINE
506    o seaice:
507      - modify advection so that it works also on the C-grid
508      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
509        problem in multi-tile runs with C-grid
510      - add flags for clipping ice velocities and/or masking solver forcing
511      - fix drag (ocean on ice) formulation and a bug that caused noise in the
512        C-grid solver
513      - added a few comments to seaice_diffusion.F
514      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
515        are now exclusive)
516      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
517        required re-ordering the code a little:
518       + make DAIRN global variable (defined in SEAICE)
519       + move computation of the viscosities eta and zeta into a new separate
520         routine (because I need to recompute them in seaice_ocean_stress.F)
521    
522    checkpoint58b_post
523    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
524      update output.txt of exp. aim.5l_cs.thSI
525    o various mnc cleanups and improvements:
526      + shrink lookup tables by factor of ~4
527      + better error reporting when running out of lookup space
528      + able to handle longer path/file names (up to 500 chars)
529    o adjoint:
530      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
531      - TBD: "hidden" mom_vecinv recomp. in dynamics
532    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
533     (allow to differentiate between forcing components using new integer flags:
534      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
535     and add new flag to put Dissipation tendency out of Adams-Bashforth.
536    o ecco
537      - enable trend removal from SSH anomaly obs.
538    o adjoint
539      - a fix for PmEpR when #undef EXACT_CONSERV
540      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
541      - try to fix "hidden" recomp. in forward_step for NLFS
542        (NLFS seems broken sometimes after I checked it in)
543    o seaice:
544     - add c-grid version of the dynamic solver:
545       + three new routines that are the c-grid substitute lsr, dynsolver
546         and ostres
547       + put a few fields that were local to dynsolver into global common
548         blocks, so that I can move the computation of stresses etc into
549         seaice_lsr (saves coding but may break the adjoint).
550     - replace more hardwired parameters by runtime parameters
551     - add ice masks that mask the rhs of the implicit solvers where there
552       is no ice (commented out in seaice_dynsolver, because i am not sure
553       if this works properly), eventually this should replace the clipping
554       of ice velocities in seaice_dynsolver to +/-40cm/s.
555    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
556      include it only where its needed
557    o move balancing of fluxes before the call of external_forcing_surf
558    o seaice:
559      - correct units of turning angles (now they are really in degrees)
560      - move computation of GWATX/Y out of main routine into dynsolver
561      - initialize GWATX/Y in seaice_init
562    o Apply mask on Fresh-Water flux (needed for SSH forcing).
563      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
564    o seaice: add runtime flags for turning angles (default to zero)
565    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
566      and trend from exf forcing and ctrl control adjustments
567    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
568      (since checkpoint57x_post)
569    o change the default rotation period to 86164.s = the Earth rotation
570    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
571      and based on a reference stratification. Tested within hs94.cs-32x32x5.
572    o seaice advection: add code for choosing between the default (2nd order
573      central differences) and multiDim advection schemes provided by
574      pkg/generic_advdiff
575    o seaice:
576      - removed all references to SEAICE_GRID.h fields from
577        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
578        (cubed-sphere configuration will change a little)
579      - grid computations in seaice_init are obsolete now.
580      - cleaned up code a little so that is easier to read (hopefully).
581      - added new (better?) discretizations of default advection and diffusion
582        (turn on with SEAICEuseFluxForm)
583      - replace 1 in 3d global fields by kSurface in growth.F
584      
585    checkpoint58a_post
586    o seaice:
587      - bug fix in advect.F
588    o shelfice:
589      - separate shelfice load anomaly from pload (breaks with time
590        dependent forcing), => introduce constant field shelficeLoadAnomaly.
591        Its default is 0., but it may be computed more cleverly from (unknown)
592        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
593        done offline. A good approximation of the pressure load anomaly is
594        necessary to avoid large initial adjustment processes underneath
595        deep-reaching shelfice.
596      - small fix in ISOMIP shelfice_thermodynamics
597      - add more sophisticated thermodynamics of Hellmer (1989), this is
598        now the default
599      - give a few constants more intuitive names
600    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
601      if bulk formulae are used in long integration (especially EmPmR). Turn
602      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
603      if balancePrintMean, the imbalance that is substracted is printed to
604      STDOUT.
605    o fix bug (typo) in obcs_apply_eta.F
606    o add a new package shelfice which enables us to model the circulation
607      underneath shelf-ice with draughts of hundreds of meters.
608     - works
609     - to do: + include improved thermodynamics
610              + check whether kSurfC (from model/inc/SURFACE.h) can be used
611                instead of new field kTopC
612              + can we use topoFile, Ro_surf and existing code in ini_depth.F
613                instead of new field R_shelfIce and new code in ini_depth.F
614                and ini_mask_etc.F?
615              + adjust vertical mixing schemes?
616    o seaice pkg:
617     - add a cpp-flag to include a simple formula for a salinity dependent
618       freezing point of sea water at the surface
619     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
620       meridional stresses are now different (and hopefully correct)
621    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
622       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
623       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
624    o pkg/diagnostics: add options and parameters for regional-statistics
625       diagnostics ; define regions by reading a region-mask from a file
626       (might add other options later)
627    o pkg/bulk_force:
628     - add option and parameters to use AIM surface-flux formulae.
629     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
630       others forcing fields (defined in PARM05, parameter file "data") are loaded
631       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
632     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
633     - use the right EXCH call for uwind,vwind (to work on CS-grid).
634     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
635       and parameters (note: calcWindStress replaces .NOT.readwindstress).
636     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
637    
638    checkpoint58
639    o add "--embed-source" option to genmake2 which, when the supporting
640      tools can be compiled (as determined by genmake2) will turn on the
641      embed_files package which then embeds the entire MITgcm source code
642      (*.[fFhc] + Makefile) used for the build within the executable
643      - requested by CNH but off by default
644      - adds a paltry <9MB to the mitgcmuv executable in most cases
645      - only writes the output when useEMBEDSRC in eedata is true
646    o clean up 3-dim. relaxation codes:
647      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
648      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
649      * Thanks to Tom Haine for testing!
650    
651    checkpoint57z_post
652    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
653      affects output (@ truncation level) of exp. plume_on_slope ; updated.
654    o fix the pickup behavior for obcs in combination with ptracers
655    o fix a bug in ptracers_external_fields_load
656    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
657      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
658    o transfered surface NH pressure to eta field (if exactConserv).
659    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
660         and update lab_sea output.txt file.
661    o completing 3-dim. relaxation code: additional term
662         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
663      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
664      * At compile time, in "EXF_OPTIONS.h" set
665          #define  ALLOW_CLIMTEMP_RELAXATION
666          #define  ALLOW_CLIMSALT_RELAXATION
667      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
668          tauThetaClimRelax3Dim = 15552000.0,
669          tauSaltClimRelax3Dim  = 15552000.0,
670      * 3 cases:
671          1) Use a constant-in-time 3-dim. field
672          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
673          3) Real-time relax. to time-evolving prescribed field
674    o Adding Laplacian-type smoothness constraint on
675      initial and boundary (forcing) controls (ic, bc)
676      * enable at compile-time via
677        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
678      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
679      * Absolute scale somewhat unclear so far
680      * no area weighting was included since no other cost term does so far
681    
682    checkpoint57y_post
683    First step for a NLFS adjoint
684    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
685    o new init. routines for calc_r_star, calc_surf_dr
686    o still need to deal with ini_masks_etc
687    o testreport seemed happy
688    checkpoint57y_pre
689    
690    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
691    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
692    o add new offset feature to offline pkg (plus minor cleanup)
693    o cfc fixes for final year of integration
694    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
695      be in GCHEM_OPTIONS).
696    
697    checkpoint57x_post
698    o fix testreport Pb in multiple test experiment.
699    o cleanup our namelist syntax in verification:
700      - make it more F95 standards compliant (some work still needed)
701      - allows the vast majority of our tests to work with gfortran
702    o Non-Hydrostatic:
703     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
704     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
705    o Allow to apply AB on T,S rather than on AB(gT,gS):
706     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
707     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
708       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
709     - need a "clever" read_pickup to restart from the other AB formulation
710    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
711    o remove some unused variables (reduces number of compiler warnings)
712    o adjoint
713      * Disable useVariableViscosity for adjoint for time being
714        (there are a number of extensive recomputations)
715      * Initialize certain variables needed for adjoint
716    
717    checkpoint57w_post
718    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
719                 fix the singleCpuIO RS version of MDSWRITEFIELD
720       and add a WARNING if using globalFiles=T with multi-processors.
721    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
722      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
723    o tracer advection scheme:
724      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
725       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
726       was not very convenient).
727      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
728       (further tests needed for the implicit DST & Flux-Limiter schemes).
729    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
730      and sRef for convenience, handy, when you want to initialize
731      ptracers in a large domain with a constant non-zero value. Also,
732      untangle ptracers_init.F a little.
733    
734    checkpoint57v_post
735    o change dome exp. to use variable viscosity in side-drag terms.
736    o remove all the files from the cfc_offline test since they are now
737      incorporated into tutorial_cfc_offline which has been producing
738      identical results for a few days of testing
739    o add new parameter: sideDragFactor to enable half-slip-side BC
740      and change side-drag S/R to use viscosity from mom_calc_visc
741      (can switch back by setting sideDragFactor=0.); affects results at
742      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
743       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
744    o vorticity & strain are now computed without masking, to account for
745      no-slip-side BC in variable viscosity calculation ; mask is applied
746      anyway later on, before computing advection/coriolis terms.
747    o modify exp4 to test new obcs support for reading from external files
748      and for passive tracers
749    o fix behavior of ptracers_monitor when monitor output is written to a
750      netcdf-file; still not independent of monitor.F (writes in the same
751      file).
752    o change default value of tRef (put a uniform, meaningful value for ocean
753      & atmos) and initialize sRef (was missing, as Martin mentioned).
754    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
755      to be proportional to enstrophy dissipation length.  Thus,
756       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
757      This is now consistent with Smagorinsky and with the manual.
758    
759    checkpoint57u_post
760    o OBCS and PTRACERS: add open boundary support for passive tracers
761      - either use homogenous (pseudo) v.Neumann conditions or prescribe
762        OB-values from file; this is not different from the way theta and salinity
763        are treated
764      - however, Orlanski-radiation conditions are not supported, and the model
765        will stop if you use pTracers and Orlanski at the same time.
766      - beefed up the rountine obcs_external_fields_load: now only those open
767        boundary values are overwritten with values from files for which there
768        are really files, otherwise the OB-fields remain untouched. This makes
769        it possible to use different OBs at different ends of the domain (as
770        with EXF)
771    o reduce number of exch calls in shap_filt (s2).
772    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
773      truncation level) 4/5 MLAdjust test results (11&12 digits match).
774    
775    checkpoint57t_post
776    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
777    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
778      same truncation, independent of the face number: affects affects several
779      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
780    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
781      note that biharmonic viscosity + no-slip was not tested in any experiment.
782    o fix bug in non-linear free-surf side-drag ; generate new output for
783      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
784    o make mnc honor the writeBinaryPrec flag for most kinds of output
785    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
786    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
787      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
788    o add brackets in multi-terms sum to get same truncation, independent of
789      the face number (manage to get exactly same value of gU,gV at the cs-edge)
790      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
791    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
792      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
793      a maximum grid-scale Reynolds number.  Also, changes all length calculations
794      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
795      Suggested values of viscosity parameters found in mom_calc_visc.
796      Many new viscosity diagnostics available.
797    
798    checkpoint57s_post
799    o Add clearing-house for viscosity calculations, mom_calc_visc and
800      correct numerous bugs in LeithD and Smagorinsky discretizations.  
801      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
802      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
803      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
804      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
805      The Strain-Tension form is now called with useStrainTensonVisc=.true.
806      ViscAhStrain and viscAhTension are now retired.
807    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
808    o In response to JMC's bug report, genmake2 now ignores any soft-links
809      that it finds in the *current* directory when searching for files.
810      Soft-links found in any other source directories will still work as
811      they did before.
812    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
813      a C routine to unlimit the stack size
814    o mnc-ify pkg/aim snapshot vars
815    o mnc-ify pkg/land as requested by Daniel
816    o various changes to mnc including:
817      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
818      - output can now be grouped so that all files within a group
819          change the ITER portion of their names in lock-step together
820      - can now read ("global") PER-FACE (in addition to PER-TILE) files
821          and works with both EXCH1 and EXCH2 (but needs more testing)
822      - writing works for all verification test cases w/ g77 on Linux
823    
824    checkpoint57r_post
825    o make MNC variable initialization happen earlier
826    o add diagnostics for (almost) each term of the momentum Eq.
827    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
828    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
829    o remove MINIMAL_TAVE_OUTPUT option ;
830      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
831    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
832      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
833    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
834    o add time-dependent SST, SSS control
835    o cost terms in ecco/ modularized (new cost_generic.F)
836    o cost_averages routines are modularized (new cost_averagesgeneric.F)
837    o new infrastructure for seaice model vs. obs misfits in seaice/
838      * driver from the_main_loop.F is seaice_cost_driver.F
839      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
840      * gradient check in Exp. 6a of natl_box_adjoint/
841    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
842      (see README file)
843    
844    checkpoint57q_post
845    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
846    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
847      - bug was reported by Jean-Michel and Ian Fenty
848    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
849      update exp. cpl_aim+ocn output.
850    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
851      Needed for high-res. runs with large global files
852      to be able to limit tapelev size
853    o Changed some tests for adjoint:
854      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
855      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
856      * global_ocean.90x40x15/ back to default 3-level checkpointing
857    o Modifications to enable scripted COMMON to MODULE conversion
858      * verification/OpenAD/code/ has necessary scripts and description;
859      * converts, compiles and runs successfully;
860    
861    checkpoint57p_post
862    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
863    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
864      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
865    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
866    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
867      (was already the case for dissipation with mom_vecinv,
868       and also the case for grad.PhiHyd when staggered-timeStep)
869      This will allow to put dissipation out-off the AB time-stepping.
870     Unfortunately, affects truncation error. Update output of exp. that "fails"
871      (cg2d matching number) and leave the others for later: front_relax(10),
872      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
873      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
874    
875    checkpoint57o_post
876    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
877      (2) its ready to be documented during the 20050801 DocFest
878    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
879      for ideal_2D_oce and lab_sea on linux_ia32_g77
880    o set to #undef CTRL_SET_OLD_MAXCVARS_30
881      in global1x1_tot/code_seaice_adj to access indices 32, 33
882      (worth another tag)
883    
884    checkpoint57n_post
885    o adding precip control xx_precip 32
886    o adding swflux control xx_swflux 33
887    o Replacing 10 forcing penalty cost routines by 1 generic.
888    o Implementing partitioning in time-mean and variable adjustment
889      for atmos. state.
890    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
891    o in natl_box_adjoint:
892      * updated exp 1 to 10
893        (but does not have time-mean vs. variable split results yet)
894    o updated global1x1/*_seaice_adj/
895      to incorporate latest changes
896    o enable useSingleCpuIO for mdsio vector routines
897      (applies in particular to tapelev I/O)
898    o removed inefficient K-loop in all active_file*control*.F
899    
900    checkpoint57m_post
901    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
902      and advect_cs (use EXCH-2 and standard cs-32 grid files).
903    o pkg/exch2: filling of face-corner halo regions is optional
904      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
905    
906    checkpoint57l_post
907     tag before updating tutorials (pre-release-2)
908    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
909       for output and interpolation of input fields onto model grid)
910    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
911       Affects results of exp. rotating_tank ; update output.txt.
912    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
913          and taking the square quantity and/or using a fraction-weight field.
914    o fix aim_diagnostics_init.F mate numbers.
915    o add mnc output capability to diagnostics/diagstat and update
916      our cvsignore files for the ACSII output generated
917    
918    checkpoint57k_post
919    o lab_sea now uses diagnostics package and provides a suite of
920      new EXF diagnostics output.
921    
922    checkpoint57j_post
923    o exf
924      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
925        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
926        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
927      * extended diagnostics output
928        - now includes all EXF variables
929        - hs, hl moved to common block
930        - separate S/R for diagnostics, called after ctrl vector is added
931        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
932        - EXFqnet contains true Qnet (i.e. includes qsw)
933      * updated verif. lab_sea, global_with_exf
934      * Rearranging hflux (exf_mapfields -> exf_getforcing)
935        to ensure that diagnostics sees a true EXFqnet
936    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
937    o diagnostics pkg: change pointers so that 1 diagnostic can be used
938      several times with different frequencies.
939    o mnc-ify the thsice package as requested by Daniel Enderton
940      - the monitor--MNC output needs work
941      - many attributes need to be added (most are currently blank)
942    o mnc-ify theaim_v23 package as requested by Daniel Enderton
943      - many attributes need to be added (most are currently blank)
944    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
945    o add Sadourny like discretization to the 4th.O vorticity advection scheme
946    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
947      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
948         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
949    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
950     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
951    
952    checkpoint57i_post
953    o Diagnostics package was changed: diagnostic allocation is now deactivated
954      by setting an empty file name in the namelist (used to be by setting 0 frequency)
955    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
956      add 1rst Order upwind vertical Shear.
957    o add a quick fix for A/B checkpointing in OFFLINE mode
958    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
959      end-run around the C/Fortran linking horror in eesup/src/timers.F
960    o added pkg/runclock: allows user to terminate run based on wall clock
961    o added non-hydrostatic scaling parameter: nh_am2
962    o pkg/my82: futile attempt to make results compiler-independent by adding
963      some "_d 0", etc. no effect.
964    o for mnc output, fill the 'T' coordinate var with myTime and create a
965      separate 'iter' variable for iteration count
966    o pkg/diagnostics:
967      add new capability: output of Global/Regional & per-level statistics ;
968      tested against monitor output (including land & thSIce) on various exp.
969    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
970    
971    checkpoint57h_done
972      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
973      data.diagnostics, data.gchem, data.ptracers) is done.
974    
975    o pkg/diagnostics: prepare for Global/Regional statistics.
976      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
977    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
978      and rename it: DIFFERENT_MULTIPLE
979    
980    checkpoint57h_post
981    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
982    o pkg/diagnostics: change output frequency, now in seconds (instead
983      of Nb of iterations). This requires to change data.diagnostics.
984    checkpoint57h_pre
985    
986    o in mnc, let the user create the output dir if both mnc_outdir_date
987      and mnc_outdir_num are false
988    o add fflags() to pkg/diagnostics which allows one to specify, on a
989      per-file basis, the file precision [default behavior is unchanged]
990    o added diagnostics to pkg/kpp, including computation of mixed layer
991      depth based on a temperature/density criterion
992    o updated verification/natl_box to test the new pkg/kpp diagnostics
993    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
994    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
995    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
996      not mnc -- this mistake was found by JMC and is now corrected
997    
998    checkpoint57g_post
999    o add Adams-Bashforth 3rd Order time stepping:
1000      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1001      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1002    checkpoint57g_pre
1003    
1004    o make lambda[Theta,Salt]ClimRelax spatially varying
1005      (default remains spatially uniform constant based on tau)
1006    o added new control variables
1007      * init. uVel, vVel, etanN
1008      * lambda[Theta,Salt]ClimRelax
1009    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1010      (suggested by G. Forget)
1011    
1012    checkpoint57f_post
1013    o add parameter "baseTime" = model base time = time at iteration zero
1014      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1015      account for baseTime shift
1016    o move Coriolis arrays from PARAMS.h to GRID.h
1017    checkpoint57f_pre
1018    
1019    o mnc-ifying the seaice package
1020    o introduced an alternative length scale calculation for use in the limiting
1021      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1022    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1023    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1024      as well as grad(vort3).  Made it compatible with both approximate form
1025      for the cubed sphere and full form of these gradients.  Added flag
1026      useFullLeith to select between approximate and full form.  
1027    o add "d0" in getcon.F to reduce differences between compilers/platforms
1028      update output.txt of exp. fizhi-gridalt-hs
1029    o change port_rand funtion to allow to set the seed.
1030    o fix obscure MNC bug involving conversion between reals and integers
1031      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1032        new version is now more standards-compliant
1033    o adjoint-related modifications
1034      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1035      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1036      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1037    
1038    checkpoint57e_post
1039    o Adding eddy stress controls a la Ferreira et al.
1040    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1041    
1042    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1043      update output.txt of exp. fizhi-gridalt-hs
1044    o add more "Z" dimensions and associated coordinate vars to MNC
1045    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1046    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1047      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1048      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1049      months and years.  Requires pkg/cal.
1050    o diagnostics: add pickup functionality
1051      - off by default for backwards compatibility
1052      - current version only uses MDSIO -- MNC will be added
1053    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1054    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1055    
1056    checkpoint57d_post
1057    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1058    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1059      output from the diagnostics package
1060    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1061    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1062      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1063    o add coordinate variables to the MNC output from the diagnostics package
1064    o change MNC-flags default value: true when useMNC=TRUE
1065    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1066      the ability (off by default) to read the grid information using MNC
1067    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1068    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1069    o do snap-shot diagnostics at the middle of the time-interval (instead of
1070      at the end).
1071    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1072      new test for AIM with thSIce + slab-ocean
1073    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1074    o move state variable diagnostics to the beginning of the time step ;
1075      (note: still needs some work specially for snap-shot diagnostics)
1076      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1077    
1078    checkpoint57c_post
1079    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1080    o generate new output.txt files on faulks with g77 & the new -ieee option
1081    checkpoint57c_pre
1082    
1083    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1084      update output.txt of exp. global_ocean.90x40x15
1085    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1086      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1087    o add saltFlux(+File) forcing capability with periodicExternalForcing
1088    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1089    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1090    o improvements for the MNC output from DIAGNOSTICS:
1091      - correct handling of the unlimitied dimension
1092      - all dims now have associated coordinate variables
1093      - variables located at U, V, and Corner ("Z") points are now written
1094        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1095        *all* data points are output
1096    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1097    o added pkg/seaice/seaice_monitor.F
1098    o mdsio_readfield.F can now read files visible only to master MPI process.
1099    o pkg/seaice: some test code for ice-modified ocean stress
1100    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1101      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1102      spurious negative numbers for precipitation and humidity.  Will cause
1103      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1104    o pkg/ctrl/
1105      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1106        May be enabled via doPackDiag
1107      *  introduce z-scaling of
1108         + gradient (doZscalePack) and
1109         + control (doZscaleUnpack)
1110    o pkg/mdsio/
1111      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1112      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1113    
1114    checkpoint57b_post
1115    o simplify options in diagnostics_fill arguments (remove weird combinations)
1116    o fix MNC coordinate variables so that they now contain per-face index
1117      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1118      general, EXCH2 grids are only aligned to a "local" coordinate system
1119    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1120    o Implement instantaneous output within pkg diagnostics:
1121      setting a negative frequency in data.diagnostics produces
1122     "snap-shot" output (as opposed to time-average if freq > 0)
1123    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1124      NOTE: change ptracer diagnostics name: use 2 characters to work with
1125            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1126    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1127      becomes the coordinate variable for the 'T' dimension
1128    o add CF-style coordinate variables to MNC
1129      - just a first cut:  numbers are meaningless on the cubesphere and
1130        missing along the T axis but otherwise it works!
1131    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1132    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1133    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1134      this is based directly on what the model compute, so that the content of
1135      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1136    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1137    o clean up build options files for SunOS, in particular
1138      - remove -traditional from xmakedepend
1139      - change -xarch=v9 to -xarch=native for f77
1140      - restore use of make (not gmake)
1141      - add CC=gcc if using g77
1142    o changes per discussion of AM, JMC, & EH3 today:
1143      - move redundant "grid" variables out of "state" -- in preparation of
1144        creating proper CF-style coordinate variables and in recognition
1145        that any/all grid variables can be easily copied (eg. w/NCO) from
1146        the grid files into any of the other NetCDF files
1147      - *always* output grid variables with MDSIO (this will eventually be
1148        changed)
1149      - output MNC grid file if useMNC is true
1150    o every instance of _END_MASTER() has been found and replaced with
1151      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1152      preprocessors
1153    o re-arrange diagnostics pkg initialisation:
1154     - allow each package to extend the available diagnostics list
1155     - add some checking and fix small problems (multi-threaded, ...)
1156     - new S/R diagnostics_fill (replace fill_diagnostics):
1157       look through the short list of active diag. (instead of the long list)
1158       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1159    
1160    checkpoint57a_post
1161    o this set of changes restores TAMC compatibility
1162      tested for global_ocean.90x40x15 adjoint on trough
1163      (what a pain)
1164    
1165    checkpoint57a_pre
1166    o some modifs in tools/build_options for sunos
1167    o call ctrl_pack for ctrl at end for optimcycle=0
1168    
1169    checkpoint57
1170    o add horizontal bi-harmonic viscosity for vertical velocity
1171      - new parameter viscA4W (defaults to viscA4)
1172      - affects only non-hydrostatic code
1173      - to be done: no-slip lateral boundary conditions
1174    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1175    o implement Implicit Vertical advection for pTracers
1176    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1177      (implemented also for implicit vertical diffusion & advection)
1178    o OBCS: extend application of tracer open boundary conditions
1179      to a strip beyond the boundary of width Olx/Oly
1180    o add call monitor to TAF set of required calls (flow directives)
1181      and include in natl_box_adjoint
1182    o untangle a few ifdefs related to cost, ctrl, autodiff
1183      untangel a few ALLOW_ECCO_OPTIMIZATION
1184    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1185      (theta2, salt2 in ecco_cost_weights)
1186    
1187    checkpoint56c_post
1188    o OBCS as control variables
1189      - update ctrl_ad_diff.list, obcs_ad_diff.list
1190      - remove balance of obcs controls from default
1191      - fix index bug nobcs in ctrl_init
1192      - fix dummy fields filen in ctrl_pack
1193      - add dummy weights for obcs
1194    o lsopt: comment out fort.94 output
1195    o optim:
1196      - remove unnecessary header files
1197      - adjusted namelists
1198      - add xerbla.F to Makefile
1199    o exf:
1200      - multiple modifications of exf_check_range
1201      - unit change in exf_init_runoff from [m/year] to [m/s]
1202    o mdsio:
1203      - i/o-vector change debugLevel from debLevA to debLevB
1204    
1205    checkpoint56b_post
1206    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1207      is called from DO_THE_MODEL_IO
1208      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1209      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1210      - clean up PTRACERS_WRITE_TIMEAVE a little
1211    o add another verification experiment that tests both the cfc-pkg and
1212      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1213      reactive tendencies treated inline with regular timestepping
1214    o testreport previously did a lousy job of comparing small numbers, so
1215      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1216      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1217      testreport.
1218    o ptracers_monitor: bug fix for MPI
1219    
1220    checkpoint56a_post
1221    o GCHEM: finish reorganizating the package
1222      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1223        (introduces another 3D-array for each passive tracer, but only if
1224        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1225        gchemTendency is not needed because the timestep is done separately)
1226      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1227      - GCHEM is now---more or less cleanly---separate from PTRACERS
1228      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1229        so clear to me how that should be done in a general way.
1230    o CFC: improve formatting of output in CFC_ATMOS
1231    o PTRACERS:
1232      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1233        that ALL experiments with ptracers enable can be checked. This makes
1234        GCHEM_MONITOR obsolete.
1235      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1236        monitorFreq
1237      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1238    o add PTRACERS (PTR0[1-5]) to testreport output
1239    o exf_check_range:
1240      * default changed to .TRUE.
1241      * will check values for niter0 if debLevA, every timestep if debLevB
1242      * STOP in exf_check_range if 'out of range'
1243      * range chosen generous to allow for potential extema
1244      TBD: a version with stricter range
1245           permitted range would be runtime parameters
1246    o GMredi:
1247      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1248      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1249      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1250    o GCHEM:
1251      - move call to GCHEM_FORCING_SEP, so that it is now called before
1252        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1253      - introduced a useGCHEM runtime flag and applied it everywhere.
1254      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1255        this flag is now only visible within GCHEM-pkg routines.
1256      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1257        be replaced by a 3D array that is computed before thermodynamics; for
1258        this, the tracer ID iTracer had to be included into the parameter list
1259        of ptracers_forcing
1260      - set up forward_step to call gchem_forcing, that will replace
1261        gchem_forcing_int in ptracers_forcing
1262      - cleaning up
1263    o small cleaning of exch2: remove files that are also in eesupp/src
1264    
1265    checkpoint56
1266    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1267    o mnc: cleanup "full" files--fixes out-of-memory problem
1268    o ECCO-GODAE
1269      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1270      * fully merged and updated from SIO code
1271        windstress sign change affects
1272        - exf_inscal_[u/v]stress
1273        - sign of xx_tau[u/v] adjustments
1274        - signs in cost_scat
1275      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1276      * natl_box_adjoint updated and compressed
1277      * 2-level checkpoint switch added
1278        (tested in EXP. 1 of natl_box_adjoint)
1279      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1280    o SVD
1281      * first complete, non-hacked version for SVD calculations
1282      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1283        performed via direct access files admtlm_vector.it????
1284        (via ctrl_[un]pack)
1285      * optimcycle is used for ARPACK iteration counter
1286        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1287      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1288        and add linear transforms where necessary
1289      * controls are initial/final SST, SSS (can be extended; need to check
1290        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1291    o mdsio: filename info to both stderr, stdout
1292    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1293      from sign change
1294    
1295    checkpoint55j_post
1296    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1297      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1298    o add consistent build directories and .cvsignore files to verification
1299    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1300    o make all subroutines 30 or less characters in length for certain older
1301      compilers to work (a thorough search only turns up two routines in
1302      pkg/ptracers)
1303    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1304      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1305    
1306    checkpoint55i_post
1307    o change arrays for total vertical diffusivity (2.D if explicit,
1308      3.D if implicit) ; each ptracer uses its own background value.
1309    o added mnc/NetCDF output capability to ocn_compon_interf
1310      - added bits to verification/cpl_aim+ocn so that it can run on
1311        ITRDA and other clusters without the mpirun "-wd" option
1312    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1313      configuration
1314    o give MNC the ability to create additional files rather than
1315      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1316      - the default is just less than 2GB which is a practical limit
1317        on many systems
1318    o Compute the non-local term using either KPP vertical diffusivity (=default)
1319       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1320    
1321    checkpoint55h_post
1322    o add verification test "vermix"
1323    o remove all the *_ioinc flags and replace with the single global
1324      outputTypesInclusive flag
1325    o allow to set a vertical profile of vertical diffusivity for T & S
1326    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1327    o useMNC moved from data.mnc to data.pkg
1328    
1329    checkpoint55g_post
1330    o Renaming carbon AD experiments to comply with testreport conventions
1331    o Updating adjoint of Held-Suarez hs94.1x64x5
1332    o Fixing directives for non-ECCO forward_step, after ECCO directives
1333      have been fixed to avoid recomp. of do_oceanic_phys
1334      Works well for global_ocean.90x40x15,
1335      but recomp. issue remains for carbon
1336    o Updating adjoint output for natl_box_adjoint after
1337      pkg/ecco has been modified (see taga c55d_post)
1338    
1339    checkpoint55f_post
1340    o rename to timeave_init_fixed
1341    
1342    checkpoint55e_post
1343    o some delicate re-shuffle of store directives to avoid one
1344      extra call of do_oceanic_physics
1345      affects ecco_the_main_loop.F, do_oceanic_physics.F
1346      checkpoint_lev1_directives.h
1347    o NB: this may break global_ocean adjoint temporarily,
1348      but it is clear how to fix it. Will do later, need this now.
1349    
1350    checkpoint55d_post
1351    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1352    o ecco_cost_weights is modified to 1x1 runs
1353    o modifs to allow observations to be read in as
1354      single file or yearly files
1355    o enable to read exf forcing fields as either
1356      single file or yearly files (flag useExfYearlyFields)
1357    checkpoint55d_pre
1358    
1359    o switch between 2-level and 3-level checkpointing
1360    o add ability of MNC to write local and "partial" (eg. 2D slices where
1361      the full 3D field is never actually stored) arrays to NetCDF files
1362      with the correct (that is, the complete multi-dimensional) set of
1363      array indicies
1364      - used in mom_vecinv() to write the diagFreq output
1365      - tested (demonstrated) in verification/aim.5l_cs
1366    o further mnc-ification
1367      - add verification/lab_sea to the list with mnc setups
1368      - fix undefined mnc v-names in cd_code
1369      - add kpp to mnc output (both snapshot and timeave)
1370    o non-hydrostatic code
1371      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1372        in calc_gw.F
1373      - defaults to viscAh
1374      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1375        friction or Leith) in non-hydrostatic mode, as long as there is
1376        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1377    o pkg/cost
1378      extend simple cost functions to treat time mean quantities
1379      (T,U,V) via cost_accumulate_state from cost_tile
1380    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1381        be 2 times larger than the minimum size the advection scheme requires.
1382        now get a perfect conservation of salt in advect_cs test-exp (updated)
1383    o GGL90 (Gaspar's TKE mixed layer)
1384      - add horizontal diffusion of TKE, requires exchanges in
1385        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1386        default. In OPA there is no horizontal diffusion of TKE but the
1387        mixing coefficients are computed from a horizontal average of TKE of
1388        6 points or so. I think that diffusion has a little more physical
1389        justification.
1390      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1391        was in vain)
1392      - mask tke-variable in ggl90_init
1393    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1394    o fix biharmonic diffusion on CS-grid.
1395    o more obcs stuff
1396      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1397        for reading boundary values. This routine is called from
1398        obcs_prescribe_read
1399      - updated obcs_check
1400      - changed sponge layer relaxation parameter units for days to seconds
1401      - turned off sponge layer by default
1402      - changed argument list of OBCS_CALC to myTime+deltaTclock
1403      - fixed about 35 bugs in obcs_external_fields_load
1404    
1405    checkpoint55c_post
1406    o obcs stuff
1407      - new runtime flags useOBCSprescribe, useOBCSbalance
1408      - re-arranged obcs_calc
1409      - moved exf_getobcs to obcs_prescibe_read
1410        obcs_prescibe_read is called after ORLANSKI stuff
1411        and independent of it (executable can contain all).
1412      - updated obcs_check
1413      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1414        These may be necessary only if tangential velocities are
1415        prescribed at OB, not sure, needs testing.
1416    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1417      which simplifies the calls and passes the ifc check-bounds test
1418    
1419    checkpoint55b_post
1420    o add a 2D scalar, Z location, exchange_2 routine.
1421    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1422      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1423      affects advect_cs results (for the wrong reason): update output.txt
1424    o use a more standard discretization for biharmonic viscosity ;
1425     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1426      affects results of dome set-up: update output.txt
1427    o fix gad_advection.F (CubedSphere part), back to version 1.23
1428    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1429    
1430    checkpoint55a_post
1431    o merged code to
1432      * prescribe/read time-dependent open boundaries
1433        (works in conjunction with exf, cal)
1434      * sponge layer code for open boundaries
1435      * each boundary N/S/E/W now has its own CPP option
1436        (healthy for the adjoint)
1437    
1438    checkpoint55
1439    o up-to-date adjoint of previous breaks
1440      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1441      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1442      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1443      - carbon: * remove tr1-related adjoint verification
1444                * add ptracer as control variable
1445    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1446      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1447    
1448    checkpoint54f_post
1449    o in verification/carbin/ remove experiment related to
1450      ALLOW_PASSIVE_TRACER (array tr1 etc)
1451      code_ad/ input_ad/ results_ad
1452    
1453    o add two new packages
1454      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1455        + subject to optimization (memory)
1456      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1457        + subject to reordering (many GOTOs in the original code)
1458        + so far opps is called for every (i,j) point, and then operates in
1459          the vertical; one may want to reorder the scheme in order operate in
1460          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1461          fields)
1462    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1463      - all verification tests compile and run with linux_ia32_g77
1464      - defaults are compatible with current input files--nothing
1465        should change if you were not previously using MNC
1466      - MNC output has been added in numerous places (eg. timeave)
1467        but there are still a few writes not yet do-able with MNC
1468        (this is in progress)
1469      - flags now allow for either/or/both use of MDSIO and MNC and
1470        documentation will soon follow
1471      - numerous small formatting cleanups for ProTeX
1472    o add version info (via BUILD_INFO.h) to MNC and stdout
1473    
1474    checkpoint54e_post
1475    o add two new packages
1476      - pp81 (Packanowski and Philander, 1981), Richardson number and
1477        stratification dependent mixing
1478      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1479      - these scheme operate in a similar manner as KPP (without ghat, of
1480        course), however there is only one diffusivity that is used for both
1481        temperature and salinity (and passive tracers)ç
1482    o add offline package
1483    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1484      provided by Stephanie Dutkiewicz
1485    o genmake2: add ability to search for C compilers and cleanup test output
1486      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1487    
1488    checkpoint54d_post
1489    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1490    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1491      leading to additional shift by 5 days each year of integration
1492       (i.e. leading to considerable offset over the years)
1493    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1494    o start with no AB and no initial filtering (staggerTimeStep):
1495      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1496    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1497      (external loading & cpl import/export stay in forward_step.F)
1498    o update coupling interface to work with new staggerTimeStep
1499    o change MDSIO ptracers_pickup.
1500    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1501    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1502    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1503    
1504    checkpoint54c_post
1505    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1506      this affects (truncation error) output.txt of test-exp:
1507       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1508    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1509    o change Qnet to always be the net heat flux, (+upward).
1510      affects (truncation error) output of natl_box exp.: updated
1511    o define the max number of passive tracers in PTRACERS_SIZE.h
1512    o start to test mnc routinely in exp0
1513    o add sea-ice loading (sIceLoad) as a new forcing field.
1514    
1515    checkpoint54b_post
1516    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1517       impressive on Altix and Opteron systems)
1518    o diagnostics can now write NetCDF files through the mnc package
1519    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1520    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1521    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1522      affects (truncation error) output of lab_sea & natl_box exp.: updated
1523    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1524    
1525    checkpoint54a_post
1526    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1527    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1528    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1529    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1530      + internal_wave (shift in writing cg2d_ini_res)
1531    checkpoint54a_pre
1532    
1533    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1534      - modified verification/lab_sea and natl_box_adjoint accordingly
1535    
1536    checkpoint54
1537    checkpoint53g_post
1538    o prepare splitting of thermodynamics: store convect.counter in common block
1539    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1540      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1541    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1542    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1543    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1544    o restore adjointability
1545    
1546    checkpoint53f_post
1547    o modifications that affect AIM experiment results (update output.txt):
1548      - no advection of S at top interface Nr (pkg/generic_advdiff)
1549      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1550    o AIM pkg:
1551      - include stability function into surf.Flux derivative relative to Tsurf
1552      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1553    
1554    checkpoint53e_post
1555    o merged cylindrical coord configuration
1556    o added rotating_tank experiment
1557    checkpoint53e_pre
1558    
1559    checkpoint53d_post
1560    o faulks upgraded: re-generate output.txt that have changed:
1561       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1562    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1563    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1564    o added Sadourny discretization of Coriolis
1565      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1566      - re-enabled use of omega3 (useAbsVorticity)
1567    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1568      vector-invariant equations
1569      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1570    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1571      hopefully without new bugs
1572      - still to do: biharmonic friction for non-hydrostatic w
1573    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1574    o regenerated output for global_ocean_ebm (using -ieee)
1575    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1576      of mom_common/
1577      - simple re-arrangement of instructions within computing loop
1578    checkpoint53d_pre
1579    
1580    checkpoint53c_post
1581    o new version of coupler for AIM+thSIce and Ocean models
1582     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1583     - land: change Evaporation of snow
1584     - aim with thSIce: fix bug in snow-precip.
1585    o changes to calc_gw.F
1586     - bug fix for w^2 term near the bottom boundary
1587     - (hopefully) improve the lateral slip boundary condtions for use with
1588        partial/looped cells
1589      - because the bug fix changes two verification experiments anyway (exp5
1590        and plume on slope), change the lateral boundary condition from half slip
1591        to the value of no_slip_sides
1592    o ebm package wasnt quite up to the parallel task. Fixed that.
1593    o Adjoint of EBM package + verification
1594      * TLM OK
1595      * ADM not sufficient accuracy yet (needs further testing)
1596    
1597    checkpoint53b_post
1598    o Commiting new energy balance model to repository
1599      * package is pkg/ebm
1600      * verif. is verification/global_ocean_ebm
1601      * references are in ebm_driver.F
1602    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1603    C        Global thermohaline circulation. Part I:
1604    C        Sensitivity to atmospheric moisture transport.
1605    C        J. Climate 12(1), 71-82
1606    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1607    C        Global thermohaline circulation. Part II:
1608    C        Sensitivity with interactive transport.
1609    C        J. Climate 12(1), 83-91
1610    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1611    C        Destabilization of the thermohaline circulation
1612    C        by atmospheric eddy transports.
1613    C        J. Climate 7(12), 1870-1882
1614    o Will need long integration testing.
1615    checkpoint53b_pre
1616    
1617    o created pkg/mom_common in preparation for variable viscosity code
1618    o renamed and split ini_mnc_io
1619    o pkg/land: only liquid water can diffuse or run-off
1620    o AIM using land: soil wetness availability account for snow
1621    o added printMapIncludesZeros to EEPARMS namelist
1622    
1623    checkpoint53a_post
1624    o restore TAMC compatiility for exf_constants.h
1625      (no usage of _d in .h)
1626    o Additional storing in KPP in an attempt to fix
1627      TAMC problem with adjoint of KPP code.
1628      (no success...)
1629      Identical code works fine with TAF.
1630    o Fixed verification/natl_box_adjoint experiments.
1631      Initial conditions for Experiments 4 and 5 are now
1632      set to "SEAICE_initialHEFF=0", which is more reasonable,
1633      and hence gives results closer to that of Experiment 2.
1634      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1635    
1636    checkpoint53
1637    o stable checkpoint with up to date adjoint
1638      TLM tests only run for 1st grdchk at the moment. Its unclear if
1639      this is a code problem or a problem with resetting code for g_
1640      variables that is being autogenerated wrong.
1641      Otherwise:
1642       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1643       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1644         are both still in chaos following their security messes.
1645    
1646    checkpoint52n_post
1647    o various build (mostly genmake2) changes including:
1648      - ability to build/run more easily within Cygwin and MacOS X
1649      - more complicated Makefiles with a stronger dependence on Gnu Make
1650    o pkg/seaice modifications
1651      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1652        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1653        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1654      - changed proxy for geostrophic velocity and updated
1655        verification/lab_sea/results/* accordingly
1656      - removed ADI dynamic solver from pkg/seaice
1657      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1658        they caused a segmentation fault under certain circumstances
1659      - removed unused field WATR
1660    o bug fix in exf-package:
1661      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1662         now reflect that.
1663    o small fixes in the cal-package:
1664      - set reference date to first of January for the 'model'-calendar
1665      - failing of cal_CheckDate in cal_FullDate now actually results in a
1666        warning
1667    o small modifications in exf-package to increase flexibility:
1668      - change climtempfreeze from a constant to a runtime parameter that
1669        is specified in data.exf_clim (default = -1.9)
1670      - introduce runtime parameter windstressmax (default = 2.0) that is
1671        specified in data.exf
1672    o fix in pkg/thsice:
1673      - update Evap (Tsf changes) to be consistent with Latent heat flux
1674      - maintain snow precipitation unchanged (even if Tsf >=0).
1675     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1676    
1677    checkpoint52m_post
1678    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1679      this does not change any of the results, because myIter=0 in swfrac always
1680      lead to jwtype=2 (the default anyway), but the call makes little sense
1681      as a default
1682    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1683    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1684      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1685    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1686    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1687    o extending useSingleCpuIO option to work with new exch2 I/O format
1688      - old-style, missing-tile I/O is still accessible by defining CPP
1689        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1690    o monitor package can write to NetCDF files and/or STDOUT
1691    o fix re-definition bug in MNC_GRID_INIT_ALL()
1692    o doc/api_reference added
1693      - a framework for building an API Reference Manual using all
1694        the "protex" comments embedded in the code
1695      - see pkg/generic_advdiff, pkg/mnc for examples
1696    o MNC:
1697      - make myThid the last argument for all subroutines
1698      - new default for the grid files: NO halos
1699      - add useMNC and other run-time flags
1700      - separate per-file-group handling of the unlimited dimension
1701      - early initialization of MNC w/ flags read at the eeboot stage
1702        and lookup tables set in initialize_fixed
1703      - write all MNC output to a freshly-created directory
1704    o thermodynamics sea-ice (thsice) is now tested with testreport.
1705    o test exp. advect_cs: use the standard cs32 grid ; update output.
1706    o Added functionality to grdchk:
1707      pick global i,j,k position (or nearest wet) where to perform check.
1708    
1709    checkpoint52l_post
1710    o new land formulation:
1711      a) use ground enthalpy as prognostic variable to ensure exact
1712         energy conservation.
1713      b) account for water temperature and for latent heat of freezing
1714         in all processes (rain, run-off, ground storage)
1715      c) compute surface and ground temperature implicitly.
1716    o aim_v23 modification for new land model:
1717      a) Treat separately land / ocean / sea-ice surface fluxes
1718         to allow implicit computation of land & sea-ice surface temp.
1719      b) add snow precipitation.
1720    checkpoint52l_pre
1721    
1722    o fix problem (when 1 tile is empty) in min/max monitor.
1723    o fix bug in timeAve (u,vZetatave in common block)
1724    o no restoring terms under ice for pkg/seaice
1725    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1726    o bug fix for pkg/seaice pickups
1727    o change MNC call locations and add coordinate attributes
1728    o mask vorticity at the corner ; affects global_ocean.cs output
1729    o fix ini_curvilinear_grid ; test CS experiments with mpi
1730    o aim.5l_cs: modify sea-ice fraction input file ; update output
1731    o exf: Adding simple range check routine for exf fields after read
1732    
1733    checkpoint52k_post
1734    o removed top-level directory "diags"
1735      - we migrated these functions to pkg/timeave a long time ago
1736    o fixed bug introduced in pkg/monitor
1737    o accuracy ctrlprec = 32 insuffient for gradient checks using
1738      averaged fields (I/O via cost_averages)
1739      -> use ctrl.h in active_file*.F to control I/O precision.
1740    o paramter list of CALL ADTHE_MAIN_LOOP
1741    o added initial do_the_model_io to ecco
1742    o set all ...Freq to zero after cost_final
1743      taveFreq, dumpFreq, pChkptFreq
1744    o MAIN and ECCO differentiability restored
1745    
1746    checkpoint52j_post
1747    o fix nchklev in tamc.h for global_ocean...
1748    o Bringing flow and store directives up-to-date
1749    o Really weird thing!
1750      call do_the_model_io from the_main_loop with parameters
1751      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1752      TAF places a faulty re-call of initialise_varia
1753      after cost_final call which should not be there!
1754    checkpoint52j_pre
1755    
1756    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1757      error messages
1758    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1759    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1760      debug output
1761    o modfied mdsio_writefield.F to handle non-global files under exch2
1762    o update AIM Cubed-Sphere exp (aim.5l_cs):
1763      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1764    o update AIM Equatorial Channel exp:
1765      use standard aim_v23 pkg and change the SST fields to be more realistic.
1766    o globalFile now works with exch2
1767    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1768      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1769    o limit timeave output for hi-res integrations
1770    
1771    checkpoint52i_post
1772    o removed CPP_EEOPTIONS.h from verification/*/code
1773    o updated the tiling for global_ocean_pressure
1774    checkpoint52i_pre
1775    
1776    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1777      the old pkg/aim).
1778    
1779    checkpoint52h_pre
1780    o shortened offending lines in exch2_send_rx?.template
1781    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1782    o genmake2: add build & execute test for NetCDF code
1783    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1784      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1785    o added useSingleCPUIO flag to monitor.F and mon_out.F
1786    o added temporary hack for sea-ice dynamics on the cube:
1787      metric terms are ignored and it is assumed that
1788      there is no sea-ice on cube faces 1, 2, 4, and 5.
1789    
1790    checkpoint52f_post
1791    o added exch2 cube routines to pkg/exch2
1792    o modified hs94.cs-32x32x5 to use it
1793    o added new grid files to hs94.cs-32x32x5
1794    checkpoint52f_pre
1795    
1796    checkpoint52e_post
1797    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1798      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1799    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1800      to work with implicit vertical advection and AB ;
1801    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1802    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1803     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1804    checkpoint52e_pre
1805    
1806    o fix bug in impldiff when Nr=1 or Nr=2.
1807    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1808    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1809    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1810      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1811    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1812    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1813    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1814    
1815    checkpoint52d_post
1816    o re-tiled many expts to allow comparison in multi-processor mode
1817      - updated output accordingly
1818      - changed hs94.128x64x5 to use intial T from file rather than use the
1819        random number generator
1820    o add infrastructure in model routines for fizhi and gridalt packages
1821    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1822    o changes to permit hi-res, cubed-sphere, configuration
1823      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1824      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1825      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1826        of surface winds for the cube
1827      (A verification experiment, based on global_ocean.cs32x15, but with
1828       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1829       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1830       complete with example surface forcing files and matlab scripts to look
1831       at the output and compare it with that of global_ocean.cs32x15.)
1832    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1833       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1834       to conform to the common rule.
1835    o check-in the first version of the coupler + interfaces for multi-components
1836       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1837       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1838       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1839       - ocean and atmos. share the same horizontal grid (no interpolation).
1840       - exchanges between component and coupler is done in forward_step
1841    o new verification experiment, cpl_aim+ocn:
1842       coupled ocean - AIM atmosphere on cs32 grid.
1843    
1844    checkpoint52d_pre
1845    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1846    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1847    
1848    checkpoint52c_post
1849    o Fixing OPTIONS files for use of exf:
1850      - ALLOW_ECCO not needed
1851      - ECCO_CPPOPTIONS.h should not be included from
1852        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1853        as has been the case in the past
1854      - All cal/exf related options are currently set in
1855        single header file. Should remain so until we
1856        agree on a consistent new policy.
1857    o Removed all CPP options for cal package.
1858      cal has no more CPP options.
1859    o modified STOREs in GAD_ADVECTION
1860    o corrected key comp. for passkey
1861    
1862    checkpoint52b_post
1863    o new version: "thsice" of thermodynamic sea-ice pkg:
1864     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1865     - modify fluxes but do not change theta directly;
1866     - light cleaning of bulk_force pkg (still needed with thsice).
1867     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1868       + output_thsice.txt to test thsice & bulk_force pkgs.
1869    o put back grid & coriolis monitor output.
1870    checkpoint52b_pre
1871    
1872    o call "do_the_model_io" at the beginning (=> dump initial state)
1873    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1874    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1875      (need info on NUMBER_OF_PTRACERS)
1876    o missing PTRACERS headers in some routines
1877    o default tamc.h in pkg/autodiff supposed to crash
1878      to ensure proper customization
1879    
1880    checkpoint52a_post
1881    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1882      - moved surfaceTendencyTice from pkg/seaice to main code
1883      - subroutine FREEZE_SURFACE now limits only surface temperature
1884        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1885        => new output.txt for global_ocean.cs32x15 & global_with_exf
1886      - keep the old version of FREEZE for backward compatibility;
1887        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1888      - corresponding modifs for TAF directives
1889    o added surface flux output variables to TIMEAVE_STATVARS
1890    o time-averaged output for pkg/ptracers
1891    o fix problem with ECCO-related divided adjoint
1892      snapshot file was missing some ad-variables,
1893      but no warning issued by TAF
1894    
1895    checkpoint52a_pre
1896    o some bug fixes for #undef REAL4_IS_SLOW
1897    
1898    checkpoint52 = ecco_c52_e35
1899    o after testing adjoints of checkpoint51u_post
1900    
1901    checkpoint51u_post
1902    o this is the post-merge tag of the ecco-branch
1903      (needs another clean checkout and re-testing)
1904    o various natl_box_adjoint configs and results
1905      but no input fields
1906    o obcs adjoint not yet merged!
1907    o adding ECCO global 1x1 and 2x2 degree configs
1908    o updated/extended some store directives for seaice
1909    o pkg/ecco now containes ecco-specific part of cost function
1910    o top level routines the_main_loop, forward_step
1911      supersede those in model/src/
1912      previous input data.cost now in data.ecco
1913      (new namelist ecco_cost_nml)
1914    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1915    
1916    checkpoint51t_post
1917    o this is the pre-merge tag of the ecco-branch
1918    
1919    checkpoint51s_post
1920    o cleanup: removed various obsolete #define-s
1921    o pkg/grdchk
1922      - renamed 'ph-grd 3' to 'grad-res'
1923      - merged from ecco-branch
1924        (remaining bug fixes for obcs gradient checks)
1925      - additional high-precision output for testreport
1926        (grep for 'precision_grdchk_result')
1927    
1928    checkpoint51r_post
1929    o cleaned up or removed CPP_OPTIONS.h files
1930    o updated results for some of the tests to reflect the new
1931      optfiles (-ieee: -O0 instead of -O3)
1932    
1933    checkpoint51q_post
1934    o cd_code:
1935      - moved cd_scheme.F -> cd_code_scheme.F
1936      - separate read_checkpoint from cd_code_ini_vars.F
1937      - separated cd_code part from write_checkpoint
1938      - updated AD_SOURCE, generated .flow
1939      - added CD_CODE_VARS.h to the_main_loop
1940      - Moving cd_code specific store dir.s to pkg/cd_code
1941    o ctrl package totally restructured
1942      - pack/unpack now optional and decoupled from
1943        xx_/adxx_ I/O
1944      - ctrl_pack/unpack cleaned
1945        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1946      - confined inclusion of AD_CONFIG.h to where necessary.
1947    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1948    
1949    checkpoint51p_post
1950    o create initial cd_code package
1951      - WARNING: the initialization of fields within packages
1952        is broken because INI_FIELDS (where READ_CHECKPOINT is
1953        called) is called *before* PACKAGES_INIT_VARIABLES.
1954        This seems to be backwards since
1955        1) its important to initially zero the entire field including
1956           the "halo" region
1957        2) zeroing needs to be done *before* reading pickup info
1958           and the pickup call might or might not happen in any
1959           particular run
1960      - this needs an overhaul for R2
1961    o cleanup verification/*/code/GMREDI_OPTIONS.h
1962    o cleanup testreport
1963    
1964    checkpoint51o_post
1965    o bringing AD-related verif's up to date with genmake2
1966      - carbon/
1967      - global_ocean.90x40x15/
1968      - hs.94.1x64x5/
1969      - (front_relax/ )
1970    o (more) consistent directory structure for AD-related verif.'s
1971    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1972    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1973    o bug fix in find_alpha.F for MDJWF:
1974      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1975        change rho -> rho-rhoConst
1976      - replace call find_rho to find_rhonum
1977    o initialisation of rFlx extended to full array (required by TAF)
1978      and shifted to thermodynamics
1979    o removed PTRACERS.h in ptracers routine
1980    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1981    o Correcting initialisations for fVerU, fVerV.
1982    o helping TAF to recognize dependency on kUp for
1983      fVerU, fVerV
1984    o Replacing delZ by delR in pkg/ctrl/
1985    checkpoint51o_pre
1986    
1987    o undid all of cp51 pending some cleanups and discussion
1988    o added the [#include "AD_CONFIG.h"] statement to all files that need
1989       it for adjoint/tl #defines
1990     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1991     o removed tools/genmake since it no longer works
1992    
1993    checkpoint51n_post
1994    o modifications to make FREEZE flux visible to pkg/kpp
1995      - moved surfaceTendencyTice from pkg/seaice to main code
1996      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1997      - subroutine FREEZE now limits only surface temperature
1998        (this means new output.txt for global_ocean.90x40x15,
1999         global_ocean.cs32x15, and global_with_exf)
2000    o added surface flux output variables to TIMEAVE_STATVARS
2001    
2002    checkpoint51n_pre
2003    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2004    o added [#include "AD_CONFIG.h"] to all files that use the following
2005      defines:
2006      - ALLOW_ADJOINT_RUN
2007      - ALLOW_TANGENTLINEAR_RUN
2008      - ALLOW_ECCO_OPTIMIZATION
2009    
2010    checkpoint51m_post
2011    o incorporating changes to get TAMC/TAF working in genmake2
2012      - added new TAMC/TAF targets to the Makefile
2013      - various cleanups related to package handling
2014      - these changes should have no impact on the forward model
2015    
2016    checkpoint51l_post
2017    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2018     - faster algorithm for cal_addtime.F
2019     - higher precision arithmetic, where needed
2020     - pkg/exf *startdate variables changed from calendar date to
2021       model integration time
2022    
2023    checkpoint51l_pre
2024    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2025    o enable to apply restoring on S & T only in a latitude band.
2026    o update output (external_forcing_surf modif. change truncation errors)
2027       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2028    
2029    checkpoint51k_post
2030    o change default to: useNHMTerms=.FALSE.
2031     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2032       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2033     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2034        exp1, ideal_2D_oce
2035     - change data file of oceanic exp (leave the results unchanged for now)
2036       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2037    o set gravitySign automatically according to the vertical coordinate used
2038      (and change sign: back to "logical" value: +1 when R increases downward)
2039    o added an include barrier to the default CPP_OPTIONS.h and
2040      removed the #include "PACKAGES_CONFIG.h" from it
2041    o fix a bug in mom_fluxform (from chk51j_post)
2042    
2043    checkpoint51j_post
2044    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2045    o adjusted some flow directives (dynamics, thermodynamics)
2046    o added cubed-sphere case to test cost function
2047    o heckpoint_lev?_directives.h now include
2048      pkg-specific directives, whenever those are enabled.
2049    o Moving pkg-specific flow directives to corresponding pkg
2050      Moving pkg-specific differentiation list to corresponding pkg
2051      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2052      ---> conventions are
2053           - pkg_ad.flow
2054           - pkg_ad_diff.list
2055           - pkg_ad_check_lev?_dir.h
2056    
2057    checkpoint51i_post
2058    o merge of the branch-genmake2
2059      - knowingly breaks the older genmake
2060      - automatic generation of all ALLOW_${PKG_NAME} defines
2061      - new testreport supersedes older testscript
2062    o large number of package inclusion and header cleanups
2063    checkpoint51i_pre
2064    
2065    o new output for adjoin of global ocean vector invariant
2066    o fix for checkpoint of thermodynamic seaice and bulk_force
2067    o Steph gchem various cleanups
2068    
2069    checkpoint 51h_pre
2070    o fixed some single quotes
2071    o modify gchem pkg to be more versatile
2072    o modifications to clean up dic pkg
2073    o add pkg/cfc
2074    
2075    checkpoint51g_post
2076    o provide links for ARPACK and ADM*TLM
2077    o start removing verification/vero/
2078    o update AD-related stuff
2079      (in particular some IF-statements in model/src/ routines)
2080    o adding to verification/global_ocean.90x40x15/ adjoint of
2081      vector invariant setup
2082    
2083    checkpoint51f_post
2084    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2085    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2086      of tracer Green's fucntions for ocean inversion project.
2087    
2088    checkpoint51f_pre
2089    o Added on-the-fly spatial interpolation capability
2090        "USE_EXF_INTERPOLATION" to pkg/exf.
2091      - This is a temporary Cartesian-grid hack until
2092        the super-duper ESMF coupler becomes available.
2093      - See verification/global_with_exf/README for usage example.
2094      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2095        flags and modified pkg/seaice accordingly.
2096    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2097        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2098        non-local transport term.
2099    
2100    checkpoint51e_post
2101    o pkg/mom_vecinv:
2102      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2103      - add time-ave diagnostic of vorticity advection.
2104    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2105    o atmospheric geopotential: - include water vapor effect;
2106                                - use p^kappa in p* scaling.
2107    o land pkg: read initial state from files.
2108    o AIM : add stratospheric drag in the upper level
2109    
2110    checkpoint51d_post
2111    o change function ILNBLNK (=> last non-blank char.) to return zero
2112      (instead of the string length) when the string. char is empty
2113    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2114    o modif's to restore TAMC compatibility
2115      - avoid "_d" constructs in PARAMETER declarations
2116      - avoid interrupting lines by comment lines
2117    o Use cluster local disks for purely local I/O
2118      vs. globally visible disks needed for ctrl stuff
2119      (merged from ecco-branch)
2120      - new active_file_loc... and mdsio_..._loc routines
2121      - affected packages: autodiff, ctrl, grdchk, mdsio
2122    
2123    checkpoint51c_post
2124    o introducing integer flag debugLevel
2125      - debLevZero: suppress all output
2126      - debLevA: standard
2127      - debLevB: equivalent to current debugMode=.TRUE.
2128    o introducing pathname variable mdsioLocalDir for mdsio
2129      that can be specified at runtime
2130      (relevant for cluster I/O to local disk)
2131    `
2132    >>>checkpoint51b_post
2133    adjoint of ptracers
2134    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2135    o extended state in checkpoint_lev?, etc.
2136    o alternative ctrl/cost with tr1 or ptracer
2137    o new comlev1_bibj_ptracers
2138    o new ptracers.flow
2139    o made ptracers_forcing same as external_forcing_s
2140    o added verification for adjoint with ptracers
2141      - adm. grdchk fail so far
2142      - tlm. grdchk OK
2143      - checked tapelev/comlev recomputations: OK
2144    <<<checkpoint51b_pre
2145    
2146    checkpoint51a_post
2147    o added code for biogeochemistry package
2148      - new pkgs: dic, gchem
2149      - new subroutine in ptracers
2150    o modify code for biogeo packages
2151      - in model/src and pkg/ptracers
2152    
2153    checkpoint51
2154    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2155      - autodiff, ctrl, exf, grdchk, seaice
2156      kept separate packages
2157      - cost, ecco, obcs
2158    o updating verification/internal_wave, verification/lab_sea
2159      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2160    
2161    checkpoint50i_post
2162    o Preparing next differentiable checkpoint and sync
2163      of MAIN vs. ecco-branch
2164      - 1st step: this one is differentiable
2165      - 2nd step: next(! not this) checkpoint will have updated packages
2166                  from ecco-branch)
2167    
2168    checkpoint50h_post
2169    o new package "land": provide surface BC for AIM.
2170    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2171    o AIM: use true log-P extrapolation for near surface temp (= as in
2172        F.Molteni paper) ; update aim.5l_cs output.
2173    o New variable in PARM03 for more flexible pickups
2174    o somewhat cleaned package initialisation sequence for
2175      ctrl/ cost/ ecco/ in packages_... routines
2176    
2177    checkpoint50g_post
2178    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2179      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2180      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2181        made the default because of faster convergence than ADI
2182    
2183    checkpoint50f_post
2184    o exf totally restructured
2185      - replaced all exf_set_ routines by one generic exf_set_gen.F
2186        and made sure it's still differentiable
2187      - split exf_getffields.F into new exf_bulkformulae.F
2188      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2189      - updated adjoint/makefile and relevant verif. accordingly
2190    
2191    checkpoint50f_pre
2192     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2193          + change Evap over land. (update aim.5l_cs output)
2194     o added missing .cvsignores and made uniform across expts
2195     o changed configuration of tidal_basin_2d expt
2196     o added pkg/debug functions for tracing code in fatal crashes
2197     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2198     o new fn in pkg/monitor to stop model if solution grows too big
2199     o removed lots of single quotes from comments
2200    
2201    checkpoint50e_post
2202    o make KPP work with PTRACERS
2203     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2204       nearly a copy of kpp_transport_s
2205     - there is no analogue to SurfaceTendencyS, so I have to use
2206       gPtr(of the surface layer) instead
2207    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2208    checkpoint50e_pre
2209    
2210    checkpoint50d_post
2211    o change kpp output from multiple-record state files to single-record state
2212      files analogous to write_state.F
2213    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2214      analogous to the cg2d-related output.
2215    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2216      so that writing to internal file fn (with length 512) fails.
2217    checkpoint50d_pre
2218    
2219    checkpoint50c_post
2220    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2221    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2222    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2223    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2224    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2225    
2226    checkpoint50c_pre
2227    Merging from release1_p13:
2228    o bug fix for pkg/seaice dynamic solver
2229    o Added SEAICE_initialHEFF to pkg/seaice
2230    
2231    checkpoint50b_post
2232    o store u*,v* in gU,V instead of in guNm1,gvNm1
2233    o in order to put the momForcing out of the Adams-Bashforth:
2234      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2235      to timestep.F
2236    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2237    o re-generate output for highly sensitive test-exp:
2238       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2239    
2240    checkpoint50b_pre
2241    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2242    o corrected CPP option mismatch in exf_Bulk... functions for case
2243      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2244    
2245    checkpoint50a_post
2246    o Bug fix for merging between c50 and KPP.
2247      ikey was passed from thermodynamics to kpp_calc via
2248      common block rather than being recomputed in kpp_calc,
2249      in contradiction with new key itdkey.
2250      New key ikppkey created, and tamc.h headers updated.
2251    
2252    checkpoint50
2253    - 2nd step of merge with ecco-branch:
2254      merge changes in ecco-branch back into main trunk
2255    - bug fix in find_alpha
2256    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2257    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2258    - merged some sliced AD support routines
2259    
2260    checkpoint49
2261    merged from ecco-branch:
2262    o exf:
2263      - Enable initialisation of forcing fields to constant
2264        (runtime) values.
2265      - in exf_getffields.F
2266        Reduce i-/j-loop to interior domain, discarding overlaps.
2267        That also fixes wrong TAF-key computations for key_1, key_2
2268        with bulf formulae.
2269      - exf_init.F modify #ifdef for exf_init_evap
2270      - exf_getffieldrec.F, ctrl_getrec.F
2271        The following INT-usages are not safe:
2272          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2273          fldcount = int(fldsecs/fldperiod) + 1
2274        and were modified.
2275    o autodiff: checkpoint_lev...
2276      - updated storing for bulk formulae (some arrays were missing)
2277      - added state for seaice package
2278      - synchronized with main branch
2279    o DIVA:
2280      Modif.s in
2281      - the_main_loop.F
2282      - the_model_main.F
2283      and added cost_final_restore.F cost_final_store.F
2284      o With these changes, it is possible to fully separate
2285        the first forward run to compute the cost function (mdthe_main_loop)
2286        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2287        into separate model executions.
2288        This enables better tuning of DIVA to given queue sizes.
2289      o Loss of cost function value in consecutive DIVA runs is
2290        fixed by storing to 'costfinal' file.
2291      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2292        beginning/end of adjoint integration is accounted for.
2293      The current changes apply to TAF-1.4.26.
2294      TAF has one remaining bug, requiring one manual change
2295      (see MITgcm manual).
2296    o cal: synchronized between MAIN and ecco-branch
2297    
2298    checkpoint48i_post
2299    o Changes to restore differentiability of code w.r.t. previous tag
2300      (mostly adding new routines to make list and replacing
2301      pressure by totPhiHyd).
2302    o Updated and merged grdchk package
2303      - has both ADM and TLM checks
2304      - works for single- and multi-proc.
2305      - output cleaned
2306      - worked successfully for parallel DIVA
2307    o genmake:
2308      - Adding -platform=SP4
2309      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2310    o Modif. for DIVA:
2311      ctrl_unpack should not be called in intermediate DIVA interval.
2312      (similar thing would apply for active files such as
2313      tbar, sbar, psbar, which should not be reinitialised;
2314      only relevant for ecco-branch)
2315    
2316    checkpoint48h_post
2317    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2318    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2319    o Added SEAICE_initialHEFF to pkg/seaice
2320    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2321    
2322    checkpoint48g_post
2323    --- EOS:
2324    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2325      store total Potential in totPhyHyd for diagnostics & EOS.
2326    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2327    --- Pressure/geopotential gradient:
2328    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2329    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2330      ( changes results of global_ocean_pressure )
2331    o NLFS + z-coord.: add eta*Rho' contribution.
2332    o accurate phiHyd when using interface-W at the middle between 2 centers
2333     ( changes results of ideal_2D_oce )
2334    o includes r* 2nd term in potential gradient.
2335    
2336    checkpoint48f_post
2337    Merging from release1_p12:
2338    o Modifications for using pkg/exf with pkg/seaice
2339      - improved description of the various forcing configurations
2340      - added basic radiation bulk formulae to pkg/exf
2341      - units/sign fix for evap computation in exf_getffields.F
2342      - updated verification/global_with_exf/results/output.txt
2343    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2344      (SBO) core products, including oceanic mass, center-of-mass,
2345      angular, and bottom pressure (see pkg/sbo/README.sbo).
2346    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2347      to avoid negative values in shallow regions.
2348      - updated verification/natl_box/results/output.txt
2349      - updated verification/lab_sea/results/output.txt
2350    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2351    o Added useSingleCpuIO option (see PARAMS.h).
2352    o Updated useSingleCpuIO option in mdsio_writefield.F to
2353      work with multi-field files, e.g., for single-file pickup.
2354    o pkg/seaice:
2355      - bug fix in growth.F: QNET for no shortwave case
2356      - added HeffFile for specifying initial sea-ice thickness
2357      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2358    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2359      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2360    o pkg/seaice:
2361      - adjoint-friendly modifications
2362      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2363    
2364    checkpoint48e_post
2365    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2366    o dynamics: change definition of computational domain & adapt mom_fluxform
2367      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2368    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2369        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2370        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2371        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2372        inverted_barometer solid-body.cs-32x32x1
2373      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2374    
2375    checkpoint48d_post
2376    o in preparation for r*:
2377     a) use pre-computed gradient of hydrostatic potential:
2378        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2379     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2380        => affects results of glob_oce_pressure (different truncation error)  
2381      update output.txt of ideal_2D_oce & global_ocean_pressure
2382    
2383    checkpoint48d_pre
2384    o in preparation for r*:
2385      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2386      pass the 2 comp. of the grad. as arguments to momentum S/R.
2387      but for the moment, only used if it does not change the results.
2388    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2389    
2390    checkpoint48c_post
2391    Modifications in treatment of initial flux forcing controls
2392    to avoid extra storing of flux fields.
2393    
2394    checkpoint48c_pre
2395    o Added tidal_basin_2d experiment (currently 1D!)
2396    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2397    
2398  checkpoint48b_post  checkpoint48b_post
2399  o r* coordinate added in #ifdef NONLIN_FRSURF block.  o r* coordinate added in #ifdef NONLIN_FRSURF block.
2400   (modification to pressure gradient not yet implemented)   (modification to pressure gradient not yet implemented)

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