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revision 1.189 by dimitri, Mon Oct 20 06:25:15 2003 UTC revision 1.796 by mlosch, Sun Apr 22 19:57:13 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    o pkg/kpp: add code to have mixing in shelf ice caverns
19    
20    checkpoint59
21    o pkg/exf:
22      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
23        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
24      - move exf header files from lower_case.h to UPPER_CASE.h ;
25        add missing cvs Header & Name
26      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
27      - add namelist param. selectStressGridPosition, exf_monFreq
28      - retire many _CLIM routines, and remove data.exf_clim
29        + params moved to data.exf
30        + climsst, climsss now handled by exf_set_gen, i.e.
31          climss?period=0 refers to constant field,
32          climss?period=-12 to monthly forcing
33      - split up namelists in data.exf
34    o pkg/seaice:
35      - remove seaice_exch and seaice_exch_uv
36      - remove superfluous exchange of theta
37      - add myThid to seaice_budget_ocean/ice
38      - add new interface for atmospheric wind forcing (C-grid only)
39        + new routine
40        + two new field (taux, tauy for stress over ice)
41        + removed one global field (DAIRN) for C-grid case only
42    o pkg/thsise
43      - 2nd set of modifs for thsice adjoint in conjunction with exf
44    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
45    
46    checkpoint58y_post
47    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
48      vertical diffusivity, similar to that in MOM4; turned on using
49      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
50      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
51    o Added capability for 3D specification of background vertical diffusion
52      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
53      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
54      "data" file that contains the 3D vertical diffusivity coefficients.
55    o ice dynamics (pkg/seaice) with thsice thermodynamics:
56      - add code within pkg thsice to advect & diffuse sea-ice fields
57      similar to (and will replace) what has been added in  seaice_advdiff.F,
58      but: - conserving Mass, Heat & Salt.
59           - better when using non-linear advection scheme (not yet fully tested)
60           - can also be used in atmospheric set-up (for now, only the diffusion).
61    
62    checkpoint58x_post
63    o IO option for global-file compact format:
64      - add options when generating topology (utils/exch2/matlab-topology-generator)
65      - add I/O capability (pkg/mdsio).
66      - adapt utils/matlab/rdmds.m to read this format.
67      for now long-line format not yet supported by pkg/mdsio (& exch2).
68    o shelfice: add a few diagnostics
69    
70    checkpoint58w_post
71    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
72      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
73      (and replace horiVertRatio in NH code).
74      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
75                         and tutorial_plume_on_slope (sensitive to truncation)
76    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
77      directly to drive seaice model (C-grid only)
78    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
79     - reintroduce computation of wind from stress,
80     - compute tau (in exf_bulkformulae.F) from windstress averaged to
81       mass points to avoid tau = 0
82     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
83    o rdmnc.m: make it work with "global" files created with gluemnc
84    o rdmnc.m : some improvements in dealing with singleton dimension
85      (tested on all testreport mnc output files).
86    o genmake2: disable pkg/profiles if netcdf test fails.
87    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
88    o move call to cal_readparms up to make calendar parameters/variable available
89      to all packages
90    
91    checkpoint58v_post
92    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
93      useDynP_inEos_Zc tested.
94    o pkg/exf: changes to properly interpolate/mask/scale initial fields
95    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
96      and portions thereof.  See read_cs.txt for description and examples.
97    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
98      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
99      following the great-circle arc between those 2 points.
100    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
101      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
102    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
103     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
104     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
105     - still needs work (not working with some options ; efficiency to improve)
106       and serious testing.
107     - use this scheme for temperature & salinity in 2 advection test exp.:
108       advect_xy & advect_xz, respectively.
109    
110    checkpoint58u_post
111    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
112    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
113    o testreport: add option "-skipdir" to skip some test.
114    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
115      momentum calculation.
116    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
117    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
118      remove checkpoint.F and the_correction_step.F (no longer used);
119      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
120    o add option (linFSConserveTr) to correct for tracer source/sink due to
121      Linear Free surface
122    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
123    o pkg/thsice: fix reading mnc-pickups
124    
125    checkpoint58t_post
126    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
127    o pkg/mdsio:
128     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
129       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
130       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
131     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
132     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
133       either MDS_READ_FIELD or MDS_WRITE_FIELD )
134     - new S/R (to replace MDSWRITEMETA), which allows to write more
135       informations (variable names, time ...) to meta files.
136     - modify rdmds.m to give back the meta file content.
137    o pkg/diagnostics: change vertical interpolation to be safer, and more
138       flexible (define p-levels to interpolate to in data.diagnostics);
139      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
140       diagnostic pointer.
141    o pkg/seaice: more cleaning up of seaice_growth, added many comments
142    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
143    o fix multi-category seaice:
144     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
145       SEAICE_MULTICATEGORY
146     - fix short wave heat flux
147    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
148       and allow to use EVP solver. Change forward lab_sea: test both EVP
149       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
150    o Initial check-in of lab_sea adjoint
151      (very similar to natl_box_adjoint/code_seaice)
152      * used C-grid and EVP solver
153      * used KPP, GM/Redi
154      * uses inAdExact=.TRUE.
155      * gradient checks fail for both ADM and TLM
156        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
157        f.d. gradients actually seem more problematic than ADM, TLM gradients;
158        issue is related to forward mismatch between g77 an ifort
159    o pkg/seaice: overhaul of thermodynamics
160     - growth.F and groatb.F are replaced by new routine seaice_growth.F
161     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
162     - move a few global fields out of SEAICE.h into seaice_growth.F and
163       make them 2D (FICE/QNETO/ ...)
164     - remove FO (it is the same as QNETO)
165     - introduce a few local fields to avoid modifying external fields such
166       as atemp, etc.
167    
168    checkpoint58s_post
169    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
170      changed exf_set_gen.F so that
171        genperiod=0 means input file is one time-constant field and
172        genperiod=-12 means input file contains 12 monthly means
173    o CG2D: use pre-computed solver main-diagonal (stored in common block);
174      this affects truncation error ; generate new output file for exp. which
175      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
176        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
177        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
178        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
179        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
180        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
181    o start implementation of deep-atmosphere and anelastic formulation
182    o verification: remove 2nd copy of input files and use script "prepare_run"
183      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
184    o mom_common/vecinv/fluxform: fix a few initialisation isssues
185    o profiles: fix for multithreaded case
186    
187    o diagnostics: rename few diags:
188      s/'PRESSURE'/'RCENTER '/g
189      s/'TICE    '/'oceFreez'/g
190      s/'TAUX    '/'oceTAUX '/g
191      s/'TAUY    '/'oceTAUY '/g
192      s/'SWFLUX  '/'oceQsw  '/g
193      s/DIFx/DFxE/g
194      s/DIFy/DFyE/g
195      and add few ocean-forcing diagnostics:
196      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
197    o modifications to pkg/seaice/growth.F and budget.F, which change results of
198      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
199      as actual snow thickness.  It now refers everywhere to effective snow
200      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
201    
202    checkpoint58r_post
203    o modifications to pkg/seaice/growth.F, which change results of
204      lab_sea experiment: fixes pertain to melting snow over open water, to
205      masking EVAP under sea ice, and to using the correct AREA variable for
206      computations of EVAP, PRECIP, HSNOW, and GHEFF
207    o add ability to read bathy, salt, and theta using MNC (off by def)
208    o add flooding algorithm and advection of HSNOW for pkg/seaice;
209      both are turned off by default and do no change any results
210    o seaice advection with pkg/thsice: a step toward the use of non-linear
211      advection scheme, but #ifdef or commented out for now (requires more EXCH).
212    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
213      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
214      in natl_box (affects results @ truncation level: update output.txt)
215    o multi-threading and IO:
216      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
217      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
218        (needed to work with SingleCpuIO): tested in all verif. exp.
219    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
220      affects the results (but none of the verification test uses this scheme).
221    o Adding some pkg/diagnostics capability to pkg/seaice
222      (will certainly be subject to changes)
223    o ctrl: adding new control variables:
224      lwflux, lwdown, evap, snowprecip, apressure, runoff
225    
226    checkpoint58q_post
227    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
228      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
229      high_res_cube configuration by 4% on Columbia.
230    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
231      add (in global_with_exf/code) a version of EXF_INTERP_READ without
232      dynamical allocation (seems to work in multi-threaded).
233    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
234      single CPU io) so that TAF does not have to see EESUPPORT.h
235    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
236    
237    checkpoint58p_post
238    o obcs: stop if obcs is used with useCDscheme = .true.
239    o shelfice:
240     - fix a sign error so that no slip at shelfice interface works
241     - remove stop for combination non-hydrostatic code and shelfice. That does
242       not mean, that the results are correct, but at least they are numerically
243       stable
244    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
245    o added adjoint exch routined for all exch*3d* routines
246      and updated flow directives
247    
248    checkpoint58o_post
249    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
250      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
251    o change controling S/R for writing pickup file (new S/R do_write_pickup)
252      and clean-up reading/writing of pickup files.
253    o fix local version of read/write pickup (NH part) in rotating_tank/code
254    o simplify EXCH interface:
255     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
256     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
257    o added the regrid package
258    o shelfice:
259     - add a simple boundary layer scheme to reduce noise
260     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
261    
262    checkpoint58n_post
263    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
264       local variable (not in common block).
265    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
266      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
267      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
268        to work with SingleCpuIO.
269    o add "_d 0" to real constant of pkg/cfc subroutines ;
270       update exp. cfc_exemple & tutorial_cfc_offline output files.
271    o multi-threading and IO:
272      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
273        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
274      - barrier before and after reading.
275      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
276      - avoid using MDS_WRITELOCAL for LAND pkg output.
277      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
278        common-block variables ; Allows multi-threading with master-thread IO.
279    o change default MAX_NO_THREADS from 32 to 4 ;
280      and stop cleanly when MAX_NO_THREADS is too small.
281    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
282    
283    checkpoint58m_post
284    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
285       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
286    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
287       keep global_ocean.90x40x15 (for AD testing) with former secondary test
288       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
289    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
290        add MITgcm_tutorials (= code + all the tutorials)
291    o ecco, option to compute cost for total ssh (mean+anom)
292    o consistent with addition of ptracer and ssh in pkg/profiles
293    o profiles: adding ptracer and ssh
294    o testreport: change multi-test output-file name
295      (from output.txt.{name} to output.{name}.txt)
296    o profiles: now ok for mutli-tiles case
297    o seaice: add 4 parameters for different advection schemes for area,
298      (effective) seaice thickness, enthalphy, and snow height. Their default
299      is the standard parameter SEAICEadvScheme
300    o calc_gw:
301     - add cosFacU in zonal viscous flux (harmonic.visc.).
302     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
303       of tutorial_plume_on_slope.
304    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
305    o calc_gw: true flux-form, account for horizontal grid spacing.
306      update rotating_tank results, but not plume_on_slope (affected at
307      truncation level, 11 digits).
308    
309    checkpoint58l_post
310    o calc_gw:
311     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
312     - remove side-drag for now (need to fix it); update plume_on_slope results.
313     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
314    o commit code to make SST/SSS weights spatially variable
315      (based on either variable in-situ or variable initial T/S weights)
316    o pkg/ecco:
317      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
318        now based on horizontally varying weights wthetaLev, wsaltLev
319      * cost_averagesflags now returns year indices in addition to day, month
320      * sflux balance is performed on annual basis
321        (sflxumm, sfluxmm2, bal_sfluxmm)
322      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
323        including separate counting and multipliers
324    o pkg/rbcs
325      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
326    
327    checkpoint58k_post
328    o testreport:
329     - always build in dir. "build" (if not there, mkdir build instead of building
330       & running in input)
331     - run in dir run (if it exists), in build otherwise.
332     - call prepare_run (if input/prepare_run exists)
333     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
334    o pkg/exf modifications to interpolation and rotation routines for more
335       reasonable treatment of North Pole singularity: for tracers North Pole
336       value is set to northernmost zonal-mean value, for zonal velocity it is
337       set to zero, and for meridional velocity it is set to northernmost value.
338    o pkg/exf/exf_check_range.F
339     - add tile index to diagnostics and move stop statement to the very
340       end of the routine.
341    o pkg/diagnostics: (diagnostics_main_init.F)
342      define title of isomorphic variables according to the current config.
343    o pkg/thsice with pkg/seaice dynamics:
344    - fix domain of computation (interior only, required for exf) and do exchanges
345    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
346    o towards a standard way of dealing with multi-threading in MONITOR
347      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
348    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
349       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
350    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
351    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
352    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
353       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
354    o tracer advection:
355     - clean-up and simplify calc_common_factors.F
356     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
357       advection subroutine (but still not used within DST advection S/R)
358    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
359    
360    checkpoint58j_post
361    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
362      from file (collects calls previously in FORWARD_STEP)
363    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
364    o adjoint store dir. adjusted accordingly
365    o genmake2
366      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
367    
368    checkpoint58i_post
369    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
370      on wind stress (SEAICEstressFactor defaults to 1.)
371    o Total number of Timers is finite (<=40): comment out 2 non-essential one
372      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
373    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
374      on CS-grid: no longer loosing mass.
375    o exf & curvilinear-grid: no longer modify longitude xC & xG.
376    o pkg/ggl90: fix sloppy output and fix a bug
377    o pkg/seaice: added SEAICEuseEVPpickup parameter
378      - Set to false in order to start EVP solver with
379        non-EVP pickup files when using SEAICEuseEVP
380      - fix sign error in diffusion in seaice_calc_rhs
381    
382    checkpoint58h_post
383    * Modifications for bottom topography control
384      o replace hFacC by _hFacC at various places
385      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
386      o add non-self-adjoint cg2d_nsa
387      o update autodiff support routines
388      o re-initialise hfac after ctrl_depth_ini
389      o works for 5x5 box, doesnt work for global_ocean.90x40x15
390    * Adding verification for 5x5 box (4-layer) bottom topography control
391    
392    checkpoint58g_post
393    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
394       used for mean seasonal cycle, mean diurnal cycle); add an example
395       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
396    o pkg/ggl90:
397      - add parameter (minimum surface kinetic energy)
398      - fix bug (avoiding division by zero)
399    o couple pkg/thsice to pkg/seaice:
400      - modify advection in seaice to accomodate new scalar fields to be advected
401      - only muliDimAdection scheme work with seaice/thsice
402      - mapping of thsice-variables to seaice-variables, back and forth
403      - does not break the verification experiments, but does not give the
404        desired results either
405    o pkg/seaice
406      - make (default) second order advection a bit less confusing?
407    
408    checkpoint58f_post
409    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
410      to pkg/seaice):
411      - new routines thsice_map_exf and thsice_get_exf provide the interface
412      - add an additional formal parameter to thsice_solve4temp
413    o pkg/exf:
414      - add new fields wspeed, snowprecip (to be able to couple to thsice)
415      - correct Stefan-Boltzmann constant
416      - new parameter for longwave surface emittance
417      - separate some stuff from exf_bulkformulae into new routines  
418        exf_radiation, exf_wind
419      - add new parameters and constants: longwave emissivity for ocean, ice
420        and snow, evaporation parameters over ice
421      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
422        either wind from stress or stress from wind
423    o pkg/thSIce:
424    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
425    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
426       and THSICE_CALC_THICKN
427    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
428    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
429      to make debugging easier.
430    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
431    o pkg/bulk_force:
432      - clean-up comments and parameters ;
433      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
434    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
435      generate new output for test-experiment: aim.5l_cs.thSI
436    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
437      testreport accordingly
438    
439    checkpoint58e_post
440    o SEAICE_CGRID adjoint done
441    o R_STAR adjoint implemented.
442      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
443      * need to sort out init. of h0facc, etc.
444    o Make pkg/profile fully independent of ecco,cost, etc. stuff
445      to be able to use it in pure forward.
446    
447    checkpoint58d_post
448    o upgrade simple test-experiment to tutorial example:
449     step.1: duplicate the experiment and (step.2) will remove the old copy.
450      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
451      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
452      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
453      tutorial_global_oce_biogeo    <- copy of dic_example
454      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
455      tutorial_plume_on_slope       <- copy of plume_on_slope
456      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
457      tutorial_global_oce_optim     <- empty for now (David ?)
458      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
459     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
460    o correct a sign problem in cost_scat.F
461    o obcs and ptracers: fix boundary conditions for advections schemes
462      with larger stencil
463    o thsice adjoint: start
464    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
465      completeness
466    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
467      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
468    o ptracers adjoint:
469      * avoid extensive recomputatations
470      * fix missing re-init. of gptr (missed by TAF)
471    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
472      me to turn off the excessive output to STDOUT that this package produces
473    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
474      and add those terms in Vector-Invariant formulation.
475    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
476      if the control period (xx_hfluxperiod etc) is 0
477    o in profiles pkg, clean routines and fix details
478    o in ecco pkg, reading ssh data:
479      fix problem in case the model does not start at iter0=0
480    o fix mnc-pickup/restart for ptracers
481    o new package prifiles:
482      code to compute profile-based cost by Gael Forget
483      (modifs in ecco, ctrl, autodiff)
484    o Benign bug fix in initialization (spotted by M. Mazloff) of
485      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
486    
487    checkpoint58c_post
488    o adjoint: finish NLFS adjoint and provide reference output in
489      verification/global_ocean.90x40x15/results_ad_nlfs
490    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
491      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
492      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
493      with SEAICE_CGRID defined.
494    o move calendarDumps from "data" to "data.cal" and clean-up the code
495      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
496    o add useEXF & useCAL flags (for now, set in hard-coded way)
497    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
498      (were missing in NH mode, and wrong in quasihydrostatic mode).
499      waiting for Chris updated version of calc_gw to add those CALLs.
500    o fix bug in quasihydrostatic S/R ;
501      add a test for this option: global_ocean.90x40x15.qshyd
502    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
503      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
504    o add on/off flag useOffLine for package OFFLINE
505    o seaice:
506      - modify advection so that it works also on the C-grid
507      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
508        problem in multi-tile runs with C-grid
509      - add flags for clipping ice velocities and/or masking solver forcing
510      - fix drag (ocean on ice) formulation and a bug that caused noise in the
511        C-grid solver
512      - added a few comments to seaice_diffusion.F
513      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
514        are now exclusive)
515      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
516        required re-ordering the code a little:
517       + make DAIRN global variable (defined in SEAICE)
518       + move computation of the viscosities eta and zeta into a new separate
519         routine (because I need to recompute them in seaice_ocean_stress.F)
520    
521    checkpoint58b_post
522    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
523      update output.txt of exp. aim.5l_cs.thSI
524    o various mnc cleanups and improvements:
525      + shrink lookup tables by factor of ~4
526      + better error reporting when running out of lookup space
527      + able to handle longer path/file names (up to 500 chars)
528    o adjoint:
529      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
530      - TBD: "hidden" mom_vecinv recomp. in dynamics
531    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
532     (allow to differentiate between forcing components using new integer flags:
533      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
534     and add new flag to put Dissipation tendency out of Adams-Bashforth.
535    o ecco
536      - enable trend removal from SSH anomaly obs.
537    o adjoint
538      - a fix for PmEpR when #undef EXACT_CONSERV
539      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
540      - try to fix "hidden" recomp. in forward_step for NLFS
541        (NLFS seems broken sometimes after I checked it in)
542    o seaice:
543     - add c-grid version of the dynamic solver:
544       + three new routines that are the c-grid substitute lsr, dynsolver
545         and ostres
546       + put a few fields that were local to dynsolver into global common
547         blocks, so that I can move the computation of stresses etc into
548         seaice_lsr (saves coding but may break the adjoint).
549     - replace more hardwired parameters by runtime parameters
550     - add ice masks that mask the rhs of the implicit solvers where there
551       is no ice (commented out in seaice_dynsolver, because i am not sure
552       if this works properly), eventually this should replace the clipping
553       of ice velocities in seaice_dynsolver to +/-40cm/s.
554    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
555      include it only where its needed
556    o move balancing of fluxes before the call of external_forcing_surf
557    o seaice:
558      - correct units of turning angles (now they are really in degrees)
559      - move computation of GWATX/Y out of main routine into dynsolver
560      - initialize GWATX/Y in seaice_init
561    o Apply mask on Fresh-Water flux (needed for SSH forcing).
562      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
563    o seaice: add runtime flags for turning angles (default to zero)
564    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
565      and trend from exf forcing and ctrl control adjustments
566    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
567      (since checkpoint57x_post)
568    o change the default rotation period to 86164.s = the Earth rotation
569    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
570      and based on a reference stratification. Tested within hs94.cs-32x32x5.
571    o seaice advection: add code for choosing between the default (2nd order
572      central differences) and multiDim advection schemes provided by
573      pkg/generic_advdiff
574    o seaice:
575      - removed all references to SEAICE_GRID.h fields from
576        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
577        (cubed-sphere configuration will change a little)
578      - grid computations in seaice_init are obsolete now.
579      - cleaned up code a little so that is easier to read (hopefully).
580      - added new (better?) discretizations of default advection and diffusion
581        (turn on with SEAICEuseFluxForm)
582      - replace 1 in 3d global fields by kSurface in growth.F
583      
584    checkpoint58a_post
585    o seaice:
586      - bug fix in advect.F
587    o shelfice:
588      - separate shelfice load anomaly from pload (breaks with time
589        dependent forcing), => introduce constant field shelficeLoadAnomaly.
590        Its default is 0., but it may be computed more cleverly from (unknown)
591        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
592        done offline. A good approximation of the pressure load anomaly is
593        necessary to avoid large initial adjustment processes underneath
594        deep-reaching shelfice.
595      - small fix in ISOMIP shelfice_thermodynamics
596      - add more sophisticated thermodynamics of Hellmer (1989), this is
597        now the default
598      - give a few constants more intuitive names
599    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
600      if bulk formulae are used in long integration (especially EmPmR). Turn
601      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
602      if balancePrintMean, the imbalance that is substracted is printed to
603      STDOUT.
604    o fix bug (typo) in obcs_apply_eta.F
605    o add a new package shelfice which enables us to model the circulation
606      underneath shelf-ice with draughts of hundreds of meters.
607     - works
608     - to do: + include improved thermodynamics
609              + check whether kSurfC (from model/inc/SURFACE.h) can be used
610                instead of new field kTopC
611              + can we use topoFile, Ro_surf and existing code in ini_depth.F
612                instead of new field R_shelfIce and new code in ini_depth.F
613                and ini_mask_etc.F?
614              + adjust vertical mixing schemes?
615    o seaice pkg:
616     - add a cpp-flag to include a simple formula for a salinity dependent
617       freezing point of sea water at the surface
618     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
619       meridional stresses are now different (and hopefully correct)
620    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
621       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
622       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
623    o pkg/diagnostics: add options and parameters for regional-statistics
624       diagnostics ; define regions by reading a region-mask from a file
625       (might add other options later)
626    o pkg/bulk_force:
627     - add option and parameters to use AIM surface-flux formulae.
628     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
629       others forcing fields (defined in PARM05, parameter file "data") are loaded
630       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
631     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
632     - use the right EXCH call for uwind,vwind (to work on CS-grid).
633     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
634       and parameters (note: calcWindStress replaces .NOT.readwindstress).
635     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
636    
637    checkpoint58
638    o add "--embed-source" option to genmake2 which, when the supporting
639      tools can be compiled (as determined by genmake2) will turn on the
640      embed_files package which then embeds the entire MITgcm source code
641      (*.[fFhc] + Makefile) used for the build within the executable
642      - requested by CNH but off by default
643      - adds a paltry <9MB to the mitgcmuv executable in most cases
644      - only writes the output when useEMBEDSRC in eedata is true
645    o clean up 3-dim. relaxation codes:
646      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
647      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
648      * Thanks to Tom Haine for testing!
649    
650    checkpoint57z_post
651    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
652      affects output (@ truncation level) of exp. plume_on_slope ; updated.
653    o fix the pickup behavior for obcs in combination with ptracers
654    o fix a bug in ptracers_external_fields_load
655    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
656      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
657    o transfered surface NH pressure to eta field (if exactConserv).
658    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
659         and update lab_sea output.txt file.
660    o completing 3-dim. relaxation code: additional term
661         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
662      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
663      * At compile time, in "EXF_OPTIONS.h" set
664          #define  ALLOW_CLIMTEMP_RELAXATION
665          #define  ALLOW_CLIMSALT_RELAXATION
666      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
667          tauThetaClimRelax3Dim = 15552000.0,
668          tauSaltClimRelax3Dim  = 15552000.0,
669      * 3 cases:
670          1) Use a constant-in-time 3-dim. field
671          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
672          3) Real-time relax. to time-evolving prescribed field
673    o Adding Laplacian-type smoothness constraint on
674      initial and boundary (forcing) controls (ic, bc)
675      * enable at compile-time via
676        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
677      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
678      * Absolute scale somewhat unclear so far
679      * no area weighting was included since no other cost term does so far
680    
681    checkpoint57y_post
682    First step for a NLFS adjoint
683    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
684    o new init. routines for calc_r_star, calc_surf_dr
685    o still need to deal with ini_masks_etc
686    o testreport seemed happy
687    checkpoint57y_pre
688    
689    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
690    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
691    o add new offset feature to offline pkg (plus minor cleanup)
692    o cfc fixes for final year of integration
693    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
694      be in GCHEM_OPTIONS).
695    
696    checkpoint57x_post
697    o fix testreport Pb in multiple test experiment.
698    o cleanup our namelist syntax in verification:
699      - make it more F95 standards compliant (some work still needed)
700      - allows the vast majority of our tests to work with gfortran
701    o Non-Hydrostatic:
702     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
703     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
704    o Allow to apply AB on T,S rather than on AB(gT,gS):
705     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
706     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
707       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
708     - need a "clever" read_pickup to restart from the other AB formulation
709    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
710    o remove some unused variables (reduces number of compiler warnings)
711    o adjoint
712      * Disable useVariableViscosity for adjoint for time being
713        (there are a number of extensive recomputations)
714      * Initialize certain variables needed for adjoint
715    
716    checkpoint57w_post
717    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
718                 fix the singleCpuIO RS version of MDSWRITEFIELD
719       and add a WARNING if using globalFiles=T with multi-processors.
720    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
721      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
722    o tracer advection scheme:
723      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
724       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
725       was not very convenient).
726      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
727       (further tests needed for the implicit DST & Flux-Limiter schemes).
728    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
729      and sRef for convenience, handy, when you want to initialize
730      ptracers in a large domain with a constant non-zero value. Also,
731      untangle ptracers_init.F a little.
732    
733    checkpoint57v_post
734    o change dome exp. to use variable viscosity in side-drag terms.
735    o remove all the files from the cfc_offline test since they are now
736      incorporated into tutorial_cfc_offline which has been producing
737      identical results for a few days of testing
738    o add new parameter: sideDragFactor to enable half-slip-side BC
739      and change side-drag S/R to use viscosity from mom_calc_visc
740      (can switch back by setting sideDragFactor=0.); affects results at
741      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
742       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
743    o vorticity & strain are now computed without masking, to account for
744      no-slip-side BC in variable viscosity calculation ; mask is applied
745      anyway later on, before computing advection/coriolis terms.
746    o modify exp4 to test new obcs support for reading from external files
747      and for passive tracers
748    o fix behavior of ptracers_monitor when monitor output is written to a
749      netcdf-file; still not independent of monitor.F (writes in the same
750      file).
751    o change default value of tRef (put a uniform, meaningful value for ocean
752      & atmos) and initialize sRef (was missing, as Martin mentioned).
753    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
754      to be proportional to enstrophy dissipation length.  Thus,
755       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
756      This is now consistent with Smagorinsky and with the manual.
757    
758    checkpoint57u_post
759    o OBCS and PTRACERS: add open boundary support for passive tracers
760      - either use homogenous (pseudo) v.Neumann conditions or prescribe
761        OB-values from file; this is not different from the way theta and salinity
762        are treated
763      - however, Orlanski-radiation conditions are not supported, and the model
764        will stop if you use pTracers and Orlanski at the same time.
765      - beefed up the rountine obcs_external_fields_load: now only those open
766        boundary values are overwritten with values from files for which there
767        are really files, otherwise the OB-fields remain untouched. This makes
768        it possible to use different OBs at different ends of the domain (as
769        with EXF)
770    o reduce number of exch calls in shap_filt (s2).
771    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
772      truncation level) 4/5 MLAdjust test results (11&12 digits match).
773    
774    checkpoint57t_post
775    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
776    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
777      same truncation, independent of the face number: affects affects several
778      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
779    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
780      note that biharmonic viscosity + no-slip was not tested in any experiment.
781    o fix bug in non-linear free-surf side-drag ; generate new output for
782      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
783    o make mnc honor the writeBinaryPrec flag for most kinds of output
784    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
785    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
786      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
787    o add brackets in multi-terms sum to get same truncation, independent of
788      the face number (manage to get exactly same value of gU,gV at the cs-edge)
789      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
790    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
791      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
792      a maximum grid-scale Reynolds number.  Also, changes all length calculations
793      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
794      Suggested values of viscosity parameters found in mom_calc_visc.
795      Many new viscosity diagnostics available.
796    
797    checkpoint57s_post
798    o Add clearing-house for viscosity calculations, mom_calc_visc and
799      correct numerous bugs in LeithD and Smagorinsky discretizations.  
800      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
801      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
802      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
803      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
804      The Strain-Tension form is now called with useStrainTensonVisc=.true.
805      ViscAhStrain and viscAhTension are now retired.
806    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
807    o In response to JMC's bug report, genmake2 now ignores any soft-links
808      that it finds in the *current* directory when searching for files.
809      Soft-links found in any other source directories will still work as
810      they did before.
811    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
812      a C routine to unlimit the stack size
813    o mnc-ify pkg/aim snapshot vars
814    o mnc-ify pkg/land as requested by Daniel
815    o various changes to mnc including:
816      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
817      - output can now be grouped so that all files within a group
818          change the ITER portion of their names in lock-step together
819      - can now read ("global") PER-FACE (in addition to PER-TILE) files
820          and works with both EXCH1 and EXCH2 (but needs more testing)
821      - writing works for all verification test cases w/ g77 on Linux
822    
823    checkpoint57r_post
824    o make MNC variable initialization happen earlier
825    o add diagnostics for (almost) each term of the momentum Eq.
826    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
827    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
828    o remove MINIMAL_TAVE_OUTPUT option ;
829      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
830    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
831      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
832    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
833    o add time-dependent SST, SSS control
834    o cost terms in ecco/ modularized (new cost_generic.F)
835    o cost_averages routines are modularized (new cost_averagesgeneric.F)
836    o new infrastructure for seaice model vs. obs misfits in seaice/
837      * driver from the_main_loop.F is seaice_cost_driver.F
838      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
839      * gradient check in Exp. 6a of natl_box_adjoint/
840    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
841      (see README file)
842    
843    checkpoint57q_post
844    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
845    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
846      - bug was reported by Jean-Michel and Ian Fenty
847    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
848      update exp. cpl_aim+ocn output.
849    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
850      Needed for high-res. runs with large global files
851      to be able to limit tapelev size
852    o Changed some tests for adjoint:
853      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
854      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
855      * global_ocean.90x40x15/ back to default 3-level checkpointing
856    o Modifications to enable scripted COMMON to MODULE conversion
857      * verification/OpenAD/code/ has necessary scripts and description;
858      * converts, compiles and runs successfully;
859    
860    checkpoint57p_post
861    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
862    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
863      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
864    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
865    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
866      (was already the case for dissipation with mom_vecinv,
867       and also the case for grad.PhiHyd when staggered-timeStep)
868      This will allow to put dissipation out-off the AB time-stepping.
869     Unfortunately, affects truncation error. Update output of exp. that "fails"
870      (cg2d matching number) and leave the others for later: front_relax(10),
871      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
872      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
873    
874    checkpoint57o_post
875    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
876      (2) its ready to be documented during the 20050801 DocFest
877    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
878      for ideal_2D_oce and lab_sea on linux_ia32_g77
879    o set to #undef CTRL_SET_OLD_MAXCVARS_30
880      in global1x1_tot/code_seaice_adj to access indices 32, 33
881      (worth another tag)
882    
883    checkpoint57n_post
884    o adding precip control xx_precip 32
885    o adding swflux control xx_swflux 33
886    o Replacing 10 forcing penalty cost routines by 1 generic.
887    o Implementing partitioning in time-mean and variable adjustment
888      for atmos. state.
889    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
890    o in natl_box_adjoint:
891      * updated exp 1 to 10
892        (but does not have time-mean vs. variable split results yet)
893    o updated global1x1/*_seaice_adj/
894      to incorporate latest changes
895    o enable useSingleCpuIO for mdsio vector routines
896      (applies in particular to tapelev I/O)
897    o removed inefficient K-loop in all active_file*control*.F
898    
899    checkpoint57m_post
900    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
901      and advect_cs (use EXCH-2 and standard cs-32 grid files).
902    o pkg/exch2: filling of face-corner halo regions is optional
903      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
904    
905    checkpoint57l_post
906     tag before updating tutorials (pre-release-2)
907    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
908       for output and interpolation of input fields onto model grid)
909    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
910       Affects results of exp. rotating_tank ; update output.txt.
911    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
912          and taking the square quantity and/or using a fraction-weight field.
913    o fix aim_diagnostics_init.F mate numbers.
914    o add mnc output capability to diagnostics/diagstat and update
915      our cvsignore files for the ACSII output generated
916    
917    checkpoint57k_post
918    o lab_sea now uses diagnostics package and provides a suite of
919      new EXF diagnostics output.
920    
921    checkpoint57j_post
922    o exf
923      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
924        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
925        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
926      * extended diagnostics output
927        - now includes all EXF variables
928        - hs, hl moved to common block
929        - separate S/R for diagnostics, called after ctrl vector is added
930        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
931        - EXFqnet contains true Qnet (i.e. includes qsw)
932      * updated verif. lab_sea, global_with_exf
933      * Rearranging hflux (exf_mapfields -> exf_getforcing)
934        to ensure that diagnostics sees a true EXFqnet
935    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
936    o diagnostics pkg: change pointers so that 1 diagnostic can be used
937      several times with different frequencies.
938    o mnc-ify the thsice package as requested by Daniel Enderton
939      - the monitor--MNC output needs work
940      - many attributes need to be added (most are currently blank)
941    o mnc-ify theaim_v23 package as requested by Daniel Enderton
942      - many attributes need to be added (most are currently blank)
943    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
944    o add Sadourny like discretization to the 4th.O vorticity advection scheme
945    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
946      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
947         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
948    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
949     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
950    
951    checkpoint57i_post
952    o Diagnostics package was changed: diagnostic allocation is now deactivated
953      by setting an empty file name in the namelist (used to be by setting 0 frequency)
954    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
955      add 1rst Order upwind vertical Shear.
956    o add a quick fix for A/B checkpointing in OFFLINE mode
957    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
958      end-run around the C/Fortran linking horror in eesup/src/timers.F
959    o added pkg/runclock: allows user to terminate run based on wall clock
960    o added non-hydrostatic scaling parameter: nh_am2
961    o pkg/my82: futile attempt to make results compiler-independent by adding
962      some "_d 0", etc. no effect.
963    o for mnc output, fill the 'T' coordinate var with myTime and create a
964      separate 'iter' variable for iteration count
965    o pkg/diagnostics:
966      add new capability: output of Global/Regional & per-level statistics ;
967      tested against monitor output (including land & thSIce) on various exp.
968    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
969    
970    checkpoint57h_done
971      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
972      data.diagnostics, data.gchem, data.ptracers) is done.
973    
974    o pkg/diagnostics: prepare for Global/Regional statistics.
975      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
976    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
977      and rename it: DIFFERENT_MULTIPLE
978    
979    checkpoint57h_post
980    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
981    o pkg/diagnostics: change output frequency, now in seconds (instead
982      of Nb of iterations). This requires to change data.diagnostics.
983    checkpoint57h_pre
984    
985    o in mnc, let the user create the output dir if both mnc_outdir_date
986      and mnc_outdir_num are false
987    o add fflags() to pkg/diagnostics which allows one to specify, on a
988      per-file basis, the file precision [default behavior is unchanged]
989    o added diagnostics to pkg/kpp, including computation of mixed layer
990      depth based on a temperature/density criterion
991    o updated verification/natl_box to test the new pkg/kpp diagnostics
992    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
993    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
994    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
995      not mnc -- this mistake was found by JMC and is now corrected
996    
997    checkpoint57g_post
998    o add Adams-Bashforth 3rd Order time stepping:
999      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1000      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1001    checkpoint57g_pre
1002    
1003    o make lambda[Theta,Salt]ClimRelax spatially varying
1004      (default remains spatially uniform constant based on tau)
1005    o added new control variables
1006      * init. uVel, vVel, etanN
1007      * lambda[Theta,Salt]ClimRelax
1008    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1009      (suggested by G. Forget)
1010    
1011    checkpoint57f_post
1012    o add parameter "baseTime" = model base time = time at iteration zero
1013      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1014      account for baseTime shift
1015    o move Coriolis arrays from PARAMS.h to GRID.h
1016    checkpoint57f_pre
1017    
1018    o mnc-ifying the seaice package
1019    o introduced an alternative length scale calculation for use in the limiting
1020      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1021    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1022    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1023      as well as grad(vort3).  Made it compatible with both approximate form
1024      for the cubed sphere and full form of these gradients.  Added flag
1025      useFullLeith to select between approximate and full form.  
1026    o add "d0" in getcon.F to reduce differences between compilers/platforms
1027      update output.txt of exp. fizhi-gridalt-hs
1028    o change port_rand funtion to allow to set the seed.
1029    o fix obscure MNC bug involving conversion between reals and integers
1030      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1031        new version is now more standards-compliant
1032    o adjoint-related modifications
1033      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1034      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1035      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1036    
1037    checkpoint57e_post
1038    o Adding eddy stress controls a la Ferreira et al.
1039    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1040    
1041    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1042      update output.txt of exp. fizhi-gridalt-hs
1043    o add more "Z" dimensions and associated coordinate vars to MNC
1044    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1045    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1046      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1047      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1048      months and years.  Requires pkg/cal.
1049    o diagnostics: add pickup functionality
1050      - off by default for backwards compatibility
1051      - current version only uses MDSIO -- MNC will be added
1052    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1053    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1054    
1055    checkpoint57d_post
1056    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1057    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1058      output from the diagnostics package
1059    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1060    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1061      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1062    o add coordinate variables to the MNC output from the diagnostics package
1063    o change MNC-flags default value: true when useMNC=TRUE
1064    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1065      the ability (off by default) to read the grid information using MNC
1066    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1067    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1068    o do snap-shot diagnostics at the middle of the time-interval (instead of
1069      at the end).
1070    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1071      new test for AIM with thSIce + slab-ocean
1072    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1073    o move state variable diagnostics to the beginning of the time step ;
1074      (note: still needs some work specially for snap-shot diagnostics)
1075      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1076    
1077    checkpoint57c_post
1078    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1079    o generate new output.txt files on faulks with g77 & the new -ieee option
1080    checkpoint57c_pre
1081    
1082    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1083      update output.txt of exp. global_ocean.90x40x15
1084    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1085      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1086    o add saltFlux(+File) forcing capability with periodicExternalForcing
1087    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1088    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1089    o improvements for the MNC output from DIAGNOSTICS:
1090      - correct handling of the unlimitied dimension
1091      - all dims now have associated coordinate variables
1092      - variables located at U, V, and Corner ("Z") points are now written
1093        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1094        *all* data points are output
1095    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1096    o added pkg/seaice/seaice_monitor.F
1097    o mdsio_readfield.F can now read files visible only to master MPI process.
1098    o pkg/seaice: some test code for ice-modified ocean stress
1099    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1100      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1101      spurious negative numbers for precipitation and humidity.  Will cause
1102      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1103    o pkg/ctrl/
1104      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1105        May be enabled via doPackDiag
1106      *  introduce z-scaling of
1107         + gradient (doZscalePack) and
1108         + control (doZscaleUnpack)
1109    o pkg/mdsio/
1110      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1111      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1112    
1113    checkpoint57b_post
1114    o simplify options in diagnostics_fill arguments (remove weird combinations)
1115    o fix MNC coordinate variables so that they now contain per-face index
1116      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1117      general, EXCH2 grids are only aligned to a "local" coordinate system
1118    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1119    o Implement instantaneous output within pkg diagnostics:
1120      setting a negative frequency in data.diagnostics produces
1121     "snap-shot" output (as opposed to time-average if freq > 0)
1122    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1123      NOTE: change ptracer diagnostics name: use 2 characters to work with
1124            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1125    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1126      becomes the coordinate variable for the 'T' dimension
1127    o add CF-style coordinate variables to MNC
1128      - just a first cut:  numbers are meaningless on the cubesphere and
1129        missing along the T axis but otherwise it works!
1130    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1131    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1132    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1133      this is based directly on what the model compute, so that the content of
1134      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1135    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1136    o clean up build options files for SunOS, in particular
1137      - remove -traditional from xmakedepend
1138      - change -xarch=v9 to -xarch=native for f77
1139      - restore use of make (not gmake)
1140      - add CC=gcc if using g77
1141    o changes per discussion of AM, JMC, & EH3 today:
1142      - move redundant "grid" variables out of "state" -- in preparation of
1143        creating proper CF-style coordinate variables and in recognition
1144        that any/all grid variables can be easily copied (eg. w/NCO) from
1145        the grid files into any of the other NetCDF files
1146      - *always* output grid variables with MDSIO (this will eventually be
1147        changed)
1148      - output MNC grid file if useMNC is true
1149    o every instance of _END_MASTER() has been found and replaced with
1150      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1151      preprocessors
1152    o re-arrange diagnostics pkg initialisation:
1153     - allow each package to extend the available diagnostics list
1154     - add some checking and fix small problems (multi-threaded, ...)
1155     - new S/R diagnostics_fill (replace fill_diagnostics):
1156       look through the short list of active diag. (instead of the long list)
1157       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1158    
1159    checkpoint57a_post
1160    o this set of changes restores TAMC compatibility
1161      tested for global_ocean.90x40x15 adjoint on trough
1162      (what a pain)
1163    
1164    checkpoint57a_pre
1165    o some modifs in tools/build_options for sunos
1166    o call ctrl_pack for ctrl at end for optimcycle=0
1167    
1168    checkpoint57
1169    o add horizontal bi-harmonic viscosity for vertical velocity
1170      - new parameter viscA4W (defaults to viscA4)
1171      - affects only non-hydrostatic code
1172      - to be done: no-slip lateral boundary conditions
1173    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1174    o implement Implicit Vertical advection for pTracers
1175    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1176      (implemented also for implicit vertical diffusion & advection)
1177    o OBCS: extend application of tracer open boundary conditions
1178      to a strip beyond the boundary of width Olx/Oly
1179    o add call monitor to TAF set of required calls (flow directives)
1180      and include in natl_box_adjoint
1181    o untangle a few ifdefs related to cost, ctrl, autodiff
1182      untangel a few ALLOW_ECCO_OPTIMIZATION
1183    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1184      (theta2, salt2 in ecco_cost_weights)
1185    
1186    checkpoint56c_post
1187    o OBCS as control variables
1188      - update ctrl_ad_diff.list, obcs_ad_diff.list
1189      - remove balance of obcs controls from default
1190      - fix index bug nobcs in ctrl_init
1191      - fix dummy fields filen in ctrl_pack
1192      - add dummy weights for obcs
1193    o lsopt: comment out fort.94 output
1194    o optim:
1195      - remove unnecessary header files
1196      - adjusted namelists
1197      - add xerbla.F to Makefile
1198    o exf:
1199      - multiple modifications of exf_check_range
1200      - unit change in exf_init_runoff from [m/year] to [m/s]
1201    o mdsio:
1202      - i/o-vector change debugLevel from debLevA to debLevB
1203    
1204    checkpoint56b_post
1205    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1206      is called from DO_THE_MODEL_IO
1207      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1208      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1209      - clean up PTRACERS_WRITE_TIMEAVE a little
1210    o add another verification experiment that tests both the cfc-pkg and
1211      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1212      reactive tendencies treated inline with regular timestepping
1213    o testreport previously did a lousy job of comparing small numbers, so
1214      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1215      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1216      testreport.
1217    o ptracers_monitor: bug fix for MPI
1218    
1219    checkpoint56a_post
1220    o GCHEM: finish reorganizating the package
1221      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1222        (introduces another 3D-array for each passive tracer, but only if
1223        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1224        gchemTendency is not needed because the timestep is done separately)
1225      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1226      - GCHEM is now---more or less cleanly---separate from PTRACERS
1227      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1228        so clear to me how that should be done in a general way.
1229    o CFC: improve formatting of output in CFC_ATMOS
1230    o PTRACERS:
1231      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1232        that ALL experiments with ptracers enable can be checked. This makes
1233        GCHEM_MONITOR obsolete.
1234      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1235        monitorFreq
1236      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1237    o add PTRACERS (PTR0[1-5]) to testreport output
1238    o exf_check_range:
1239      * default changed to .TRUE.
1240      * will check values for niter0 if debLevA, every timestep if debLevB
1241      * STOP in exf_check_range if 'out of range'
1242      * range chosen generous to allow for potential extema
1243      TBD: a version with stricter range
1244           permitted range would be runtime parameters
1245    o GMredi:
1246      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1247      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1248      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1249    o GCHEM:
1250      - move call to GCHEM_FORCING_SEP, so that it is now called before
1251        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1252      - introduced a useGCHEM runtime flag and applied it everywhere.
1253      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1254        this flag is now only visible within GCHEM-pkg routines.
1255      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1256        be replaced by a 3D array that is computed before thermodynamics; for
1257        this, the tracer ID iTracer had to be included into the parameter list
1258        of ptracers_forcing
1259      - set up forward_step to call gchem_forcing, that will replace
1260        gchem_forcing_int in ptracers_forcing
1261      - cleaning up
1262    o small cleaning of exch2: remove files that are also in eesupp/src
1263    
1264    checkpoint56
1265    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1266    o mnc: cleanup "full" files--fixes out-of-memory problem
1267    o ECCO-GODAE
1268      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1269      * fully merged and updated from SIO code
1270        windstress sign change affects
1271        - exf_inscal_[u/v]stress
1272        - sign of xx_tau[u/v] adjustments
1273        - signs in cost_scat
1274      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1275      * natl_box_adjoint updated and compressed
1276      * 2-level checkpoint switch added
1277        (tested in EXP. 1 of natl_box_adjoint)
1278      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1279    o SVD
1280      * first complete, non-hacked version for SVD calculations
1281      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1282        performed via direct access files admtlm_vector.it????
1283        (via ctrl_[un]pack)
1284      * optimcycle is used for ARPACK iteration counter
1285        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1286      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1287        and add linear transforms where necessary
1288      * controls are initial/final SST, SSS (can be extended; need to check
1289        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1290    o mdsio: filename info to both stderr, stdout
1291    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1292      from sign change
1293    
1294    checkpoint55j_post
1295    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1296      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1297    o add consistent build directories and .cvsignore files to verification
1298    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1299    o make all subroutines 30 or less characters in length for certain older
1300      compilers to work (a thorough search only turns up two routines in
1301      pkg/ptracers)
1302    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1303      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1304    
1305    checkpoint55i_post
1306    o change arrays for total vertical diffusivity (2.D if explicit,
1307      3.D if implicit) ; each ptracer uses its own background value.
1308    o added mnc/NetCDF output capability to ocn_compon_interf
1309      - added bits to verification/cpl_aim+ocn so that it can run on
1310        ITRDA and other clusters without the mpirun "-wd" option
1311    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1312      configuration
1313    o give MNC the ability to create additional files rather than
1314      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1315      - the default is just less than 2GB which is a practical limit
1316        on many systems
1317    o Compute the non-local term using either KPP vertical diffusivity (=default)
1318       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1319    
1320    checkpoint55h_post
1321    o add verification test "vermix"
1322    o remove all the *_ioinc flags and replace with the single global
1323      outputTypesInclusive flag
1324    o allow to set a vertical profile of vertical diffusivity for T & S
1325    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1326    o useMNC moved from data.mnc to data.pkg
1327    
1328    checkpoint55g_post
1329    o Renaming carbon AD experiments to comply with testreport conventions
1330    o Updating adjoint of Held-Suarez hs94.1x64x5
1331    o Fixing directives for non-ECCO forward_step, after ECCO directives
1332      have been fixed to avoid recomp. of do_oceanic_phys
1333      Works well for global_ocean.90x40x15,
1334      but recomp. issue remains for carbon
1335    o Updating adjoint output for natl_box_adjoint after
1336      pkg/ecco has been modified (see taga c55d_post)
1337    
1338    checkpoint55f_post
1339    o rename to timeave_init_fixed
1340    
1341    checkpoint55e_post
1342    o some delicate re-shuffle of store directives to avoid one
1343      extra call of do_oceanic_physics
1344      affects ecco_the_main_loop.F, do_oceanic_physics.F
1345      checkpoint_lev1_directives.h
1346    o NB: this may break global_ocean adjoint temporarily,
1347      but it is clear how to fix it. Will do later, need this now.
1348    
1349    checkpoint55d_post
1350    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1351    o ecco_cost_weights is modified to 1x1 runs
1352    o modifs to allow observations to be read in as
1353      single file or yearly files
1354    o enable to read exf forcing fields as either
1355      single file or yearly files (flag useExfYearlyFields)
1356    checkpoint55d_pre
1357    
1358    o switch between 2-level and 3-level checkpointing
1359    o add ability of MNC to write local and "partial" (eg. 2D slices where
1360      the full 3D field is never actually stored) arrays to NetCDF files
1361      with the correct (that is, the complete multi-dimensional) set of
1362      array indicies
1363      - used in mom_vecinv() to write the diagFreq output
1364      - tested (demonstrated) in verification/aim.5l_cs
1365    o further mnc-ification
1366      - add verification/lab_sea to the list with mnc setups
1367      - fix undefined mnc v-names in cd_code
1368      - add kpp to mnc output (both snapshot and timeave)
1369    o non-hydrostatic code
1370      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1371        in calc_gw.F
1372      - defaults to viscAh
1373      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1374        friction or Leith) in non-hydrostatic mode, as long as there is
1375        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1376    o pkg/cost
1377      extend simple cost functions to treat time mean quantities
1378      (T,U,V) via cost_accumulate_state from cost_tile
1379    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1380        be 2 times larger than the minimum size the advection scheme requires.
1381        now get a perfect conservation of salt in advect_cs test-exp (updated)
1382    o GGL90 (Gaspar's TKE mixed layer)
1383      - add horizontal diffusion of TKE, requires exchanges in
1384        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1385        default. In OPA there is no horizontal diffusion of TKE but the
1386        mixing coefficients are computed from a horizontal average of TKE of
1387        6 points or so. I think that diffusion has a little more physical
1388        justification.
1389      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1390        was in vain)
1391      - mask tke-variable in ggl90_init
1392    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1393    o fix biharmonic diffusion on CS-grid.
1394    o more obcs stuff
1395      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1396        for reading boundary values. This routine is called from
1397        obcs_prescribe_read
1398      - updated obcs_check
1399      - changed sponge layer relaxation parameter units for days to seconds
1400      - turned off sponge layer by default
1401      - changed argument list of OBCS_CALC to myTime+deltaTclock
1402      - fixed about 35 bugs in obcs_external_fields_load
1403    
1404    checkpoint55c_post
1405    o obcs stuff
1406      - new runtime flags useOBCSprescribe, useOBCSbalance
1407      - re-arranged obcs_calc
1408      - moved exf_getobcs to obcs_prescibe_read
1409        obcs_prescibe_read is called after ORLANSKI stuff
1410        and independent of it (executable can contain all).
1411      - updated obcs_check
1412      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1413        These may be necessary only if tangential velocities are
1414        prescribed at OB, not sure, needs testing.
1415    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1416      which simplifies the calls and passes the ifc check-bounds test
1417    
1418    checkpoint55b_post
1419    o add a 2D scalar, Z location, exchange_2 routine.
1420    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1421      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1422      affects advect_cs results (for the wrong reason): update output.txt
1423    o use a more standard discretization for biharmonic viscosity ;
1424     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1425      affects results of dome set-up: update output.txt
1426    o fix gad_advection.F (CubedSphere part), back to version 1.23
1427    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1428    
1429    checkpoint55a_post
1430    o merged code to
1431      * prescribe/read time-dependent open boundaries
1432        (works in conjunction with exf, cal)
1433      * sponge layer code for open boundaries
1434      * each boundary N/S/E/W now has its own CPP option
1435        (healthy for the adjoint)
1436    
1437    checkpoint55
1438    o up-to-date adjoint of previous breaks
1439      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1440      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1441      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1442      - carbon: * remove tr1-related adjoint verification
1443                * add ptracer as control variable
1444    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1445      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1446    
1447    checkpoint54f_post
1448    o in verification/carbin/ remove experiment related to
1449      ALLOW_PASSIVE_TRACER (array tr1 etc)
1450      code_ad/ input_ad/ results_ad
1451    
1452    o add two new packages
1453      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1454        + subject to optimization (memory)
1455      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1456        + subject to reordering (many GOTOs in the original code)
1457        + so far opps is called for every (i,j) point, and then operates in
1458          the vertical; one may want to reorder the scheme in order operate in
1459          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1460          fields)
1461    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1462      - all verification tests compile and run with linux_ia32_g77
1463      - defaults are compatible with current input files--nothing
1464        should change if you were not previously using MNC
1465      - MNC output has been added in numerous places (eg. timeave)
1466        but there are still a few writes not yet do-able with MNC
1467        (this is in progress)
1468      - flags now allow for either/or/both use of MDSIO and MNC and
1469        documentation will soon follow
1470      - numerous small formatting cleanups for ProTeX
1471    o add version info (via BUILD_INFO.h) to MNC and stdout
1472    
1473    checkpoint54e_post
1474    o add two new packages
1475      - pp81 (Packanowski and Philander, 1981), Richardson number and
1476        stratification dependent mixing
1477      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1478      - these scheme operate in a similar manner as KPP (without ghat, of
1479        course), however there is only one diffusivity that is used for both
1480        temperature and salinity (and passive tracers)ç
1481    o add offline package
1482    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1483      provided by Stephanie Dutkiewicz
1484    o genmake2: add ability to search for C compilers and cleanup test output
1485      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1486    
1487    checkpoint54d_post
1488    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1489    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1490      leading to additional shift by 5 days each year of integration
1491       (i.e. leading to considerable offset over the years)
1492    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1493    o start with no AB and no initial filtering (staggerTimeStep):
1494      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1495    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1496      (external loading & cpl import/export stay in forward_step.F)
1497    o update coupling interface to work with new staggerTimeStep
1498    o change MDSIO ptracers_pickup.
1499    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1500    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1501    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1502    
1503    checkpoint54c_post
1504    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1505      this affects (truncation error) output.txt of test-exp:
1506       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1507    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1508    o change Qnet to always be the net heat flux, (+upward).
1509      affects (truncation error) output of natl_box exp.: updated
1510    o define the max number of passive tracers in PTRACERS_SIZE.h
1511    o start to test mnc routinely in exp0
1512    o add sea-ice loading (sIceLoad) as a new forcing field.
1513    
1514    checkpoint54b_post
1515    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1516       impressive on Altix and Opteron systems)
1517    o diagnostics can now write NetCDF files through the mnc package
1518    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1519    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1520    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1521      affects (truncation error) output of lab_sea & natl_box exp.: updated
1522    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1523    
1524    checkpoint54a_post
1525    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1526    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1527    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1528    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1529      + internal_wave (shift in writing cg2d_ini_res)
1530    checkpoint54a_pre
1531    
1532    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1533      - modified verification/lab_sea and natl_box_adjoint accordingly
1534    
1535    checkpoint54
1536    checkpoint53g_post
1537    o prepare splitting of thermodynamics: store convect.counter in common block
1538    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1539      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1540    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1541    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1542    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1543    o restore adjointability
1544    
1545    checkpoint53f_post
1546    o modifications that affect AIM experiment results (update output.txt):
1547      - no advection of S at top interface Nr (pkg/generic_advdiff)
1548      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1549    o AIM pkg:
1550      - include stability function into surf.Flux derivative relative to Tsurf
1551      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1552    
1553    checkpoint53e_post
1554    o merged cylindrical coord configuration
1555    o added rotating_tank experiment
1556    checkpoint53e_pre
1557    
1558    checkpoint53d_post
1559    o faulks upgraded: re-generate output.txt that have changed:
1560       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1561    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1562    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1563    o added Sadourny discretization of Coriolis
1564      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1565      - re-enabled use of omega3 (useAbsVorticity)
1566    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1567      vector-invariant equations
1568      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1569    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1570      hopefully without new bugs
1571      - still to do: biharmonic friction for non-hydrostatic w
1572    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1573    o regenerated output for global_ocean_ebm (using -ieee)
1574    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1575      of mom_common/
1576      - simple re-arrangement of instructions within computing loop
1577    checkpoint53d_pre
1578    
1579    checkpoint53c_post
1580    o new version of coupler for AIM+thSIce and Ocean models
1581     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1582     - land: change Evaporation of snow
1583     - aim with thSIce: fix bug in snow-precip.
1584    o changes to calc_gw.F
1585     - bug fix for w^2 term near the bottom boundary
1586     - (hopefully) improve the lateral slip boundary condtions for use with
1587        partial/looped cells
1588      - because the bug fix changes two verification experiments anyway (exp5
1589        and plume on slope), change the lateral boundary condition from half slip
1590        to the value of no_slip_sides
1591    o ebm package wasnt quite up to the parallel task. Fixed that.
1592    o Adjoint of EBM package + verification
1593      * TLM OK
1594      * ADM not sufficient accuracy yet (needs further testing)
1595    
1596    checkpoint53b_post
1597    o Commiting new energy balance model to repository
1598      * package is pkg/ebm
1599      * verif. is verification/global_ocean_ebm
1600      * references are in ebm_driver.F
1601    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1602    C        Global thermohaline circulation. Part I:
1603    C        Sensitivity to atmospheric moisture transport.
1604    C        J. Climate 12(1), 71-82
1605    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1606    C        Global thermohaline circulation. Part II:
1607    C        Sensitivity with interactive transport.
1608    C        J. Climate 12(1), 83-91
1609    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1610    C        Destabilization of the thermohaline circulation
1611    C        by atmospheric eddy transports.
1612    C        J. Climate 7(12), 1870-1882
1613    o Will need long integration testing.
1614    checkpoint53b_pre
1615    
1616    o created pkg/mom_common in preparation for variable viscosity code
1617    o renamed and split ini_mnc_io
1618    o pkg/land: only liquid water can diffuse or run-off
1619    o AIM using land: soil wetness availability account for snow
1620    o added printMapIncludesZeros to EEPARMS namelist
1621    
1622    checkpoint53a_post
1623    o restore TAMC compatiility for exf_constants.h
1624      (no usage of _d in .h)
1625    o Additional storing in KPP in an attempt to fix
1626      TAMC problem with adjoint of KPP code.
1627      (no success...)
1628      Identical code works fine with TAF.
1629    o Fixed verification/natl_box_adjoint experiments.
1630      Initial conditions for Experiments 4 and 5 are now
1631      set to "SEAICE_initialHEFF=0", which is more reasonable,
1632      and hence gives results closer to that of Experiment 2.
1633      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1634    
1635    checkpoint53
1636    o stable checkpoint with up to date adjoint
1637      TLM tests only run for 1st grdchk at the moment. Its unclear if
1638      this is a code problem or a problem with resetting code for g_
1639      variables that is being autogenerated wrong.
1640      Otherwise:
1641       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1642       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1643         are both still in chaos following their security messes.
1644    
1645    checkpoint52n_post
1646    o various build (mostly genmake2) changes including:
1647      - ability to build/run more easily within Cygwin and MacOS X
1648      - more complicated Makefiles with a stronger dependence on Gnu Make
1649    o pkg/seaice modifications
1650      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1651        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1652        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1653      - changed proxy for geostrophic velocity and updated
1654        verification/lab_sea/results/* accordingly
1655      - removed ADI dynamic solver from pkg/seaice
1656      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1657        they caused a segmentation fault under certain circumstances
1658      - removed unused field WATR
1659    o bug fix in exf-package:
1660      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1661         now reflect that.
1662    o small fixes in the cal-package:
1663      - set reference date to first of January for the 'model'-calendar
1664      - failing of cal_CheckDate in cal_FullDate now actually results in a
1665        warning
1666    o small modifications in exf-package to increase flexibility:
1667      - change climtempfreeze from a constant to a runtime parameter that
1668        is specified in data.exf_clim (default = -1.9)
1669      - introduce runtime parameter windstressmax (default = 2.0) that is
1670        specified in data.exf
1671    o fix in pkg/thsice:
1672      - update Evap (Tsf changes) to be consistent with Latent heat flux
1673      - maintain snow precipitation unchanged (even if Tsf >=0).
1674     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1675    
1676    checkpoint52m_post
1677    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1678      this does not change any of the results, because myIter=0 in swfrac always
1679      lead to jwtype=2 (the default anyway), but the call makes little sense
1680      as a default
1681    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1682    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1683      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1684    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1685    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1686    o extending useSingleCpuIO option to work with new exch2 I/O format
1687      - old-style, missing-tile I/O is still accessible by defining CPP
1688        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1689    o monitor package can write to NetCDF files and/or STDOUT
1690    o fix re-definition bug in MNC_GRID_INIT_ALL()
1691    o doc/api_reference added
1692      - a framework for building an API Reference Manual using all
1693        the "protex" comments embedded in the code
1694      - see pkg/generic_advdiff, pkg/mnc for examples
1695    o MNC:
1696      - make myThid the last argument for all subroutines
1697      - new default for the grid files: NO halos
1698      - add useMNC and other run-time flags
1699      - separate per-file-group handling of the unlimited dimension
1700      - early initialization of MNC w/ flags read at the eeboot stage
1701        and lookup tables set in initialize_fixed
1702      - write all MNC output to a freshly-created directory
1703    o thermodynamics sea-ice (thsice) is now tested with testreport.
1704    o test exp. advect_cs: use the standard cs32 grid ; update output.
1705    o Added functionality to grdchk:
1706      pick global i,j,k position (or nearest wet) where to perform check.
1707    
1708    checkpoint52l_post
1709    o new land formulation:
1710      a) use ground enthalpy as prognostic variable to ensure exact
1711         energy conservation.
1712      b) account for water temperature and for latent heat of freezing
1713         in all processes (rain, run-off, ground storage)
1714      c) compute surface and ground temperature implicitly.
1715    o aim_v23 modification for new land model:
1716      a) Treat separately land / ocean / sea-ice surface fluxes
1717         to allow implicit computation of land & sea-ice surface temp.
1718      b) add snow precipitation.
1719    checkpoint52l_pre
1720    
1721    o fix problem (when 1 tile is empty) in min/max monitor.
1722    o fix bug in timeAve (u,vZetatave in common block)
1723    o no restoring terms under ice for pkg/seaice
1724    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1725    o bug fix for pkg/seaice pickups
1726    o change MNC call locations and add coordinate attributes
1727    o mask vorticity at the corner ; affects global_ocean.cs output
1728    o fix ini_curvilinear_grid ; test CS experiments with mpi
1729    o aim.5l_cs: modify sea-ice fraction input file ; update output
1730    o exf: Adding simple range check routine for exf fields after read
1731    
1732    checkpoint52k_post
1733    o removed top-level directory "diags"
1734      - we migrated these functions to pkg/timeave a long time ago
1735    o fixed bug introduced in pkg/monitor
1736    o accuracy ctrlprec = 32 insuffient for gradient checks using
1737      averaged fields (I/O via cost_averages)
1738      -> use ctrl.h in active_file*.F to control I/O precision.
1739    o paramter list of CALL ADTHE_MAIN_LOOP
1740    o added initial do_the_model_io to ecco
1741    o set all ...Freq to zero after cost_final
1742      taveFreq, dumpFreq, pChkptFreq
1743    o MAIN and ECCO differentiability restored
1744    
1745    checkpoint52j_post
1746    o fix nchklev in tamc.h for global_ocean...
1747    o Bringing flow and store directives up-to-date
1748    o Really weird thing!
1749      call do_the_model_io from the_main_loop with parameters
1750      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1751      TAF places a faulty re-call of initialise_varia
1752      after cost_final call which should not be there!
1753    checkpoint52j_pre
1754    
1755    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1756      error messages
1757    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1758    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1759      debug output
1760    o modfied mdsio_writefield.F to handle non-global files under exch2
1761    o update AIM Cubed-Sphere exp (aim.5l_cs):
1762      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1763    o update AIM Equatorial Channel exp:
1764      use standard aim_v23 pkg and change the SST fields to be more realistic.
1765    o globalFile now works with exch2
1766    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1767      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1768    o limit timeave output for hi-res integrations
1769    
1770    checkpoint52i_post
1771    o removed CPP_EEOPTIONS.h from verification/*/code
1772    o updated the tiling for global_ocean_pressure
1773    checkpoint52i_pre
1774    
1775    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1776      the old pkg/aim).
1777    
1778    checkpoint52h_pre
1779    o shortened offending lines in exch2_send_rx?.template
1780    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1781    o genmake2: add build & execute test for NetCDF code
1782    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1783      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1784    o added useSingleCPUIO flag to monitor.F and mon_out.F
1785    o added temporary hack for sea-ice dynamics on the cube:
1786      metric terms are ignored and it is assumed that
1787      there is no sea-ice on cube faces 1, 2, 4, and 5.
1788    
1789    checkpoint52f_post
1790    o added exch2 cube routines to pkg/exch2
1791    o modified hs94.cs-32x32x5 to use it
1792    o added new grid files to hs94.cs-32x32x5
1793    checkpoint52f_pre
1794    
1795    checkpoint52e_post
1796    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1797      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1798    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1799      to work with implicit vertical advection and AB ;
1800    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1801    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1802     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1803    checkpoint52e_pre
1804    
1805    o fix bug in impldiff when Nr=1 or Nr=2.
1806    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1807    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1808    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1809      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1810    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1811    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1812    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1813    
1814    checkpoint52d_post
1815    o re-tiled many expts to allow comparison in multi-processor mode
1816      - updated output accordingly
1817      - changed hs94.128x64x5 to use intial T from file rather than use the
1818        random number generator
1819    o add infrastructure in model routines for fizhi and gridalt packages
1820    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1821    o changes to permit hi-res, cubed-sphere, configuration
1822      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1823      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1824      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1825        of surface winds for the cube
1826      (A verification experiment, based on global_ocean.cs32x15, but with
1827       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1828       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1829       complete with example surface forcing files and matlab scripts to look
1830       at the output and compare it with that of global_ocean.cs32x15.)
1831    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1832       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1833       to conform to the common rule.
1834    o check-in the first version of the coupler + interfaces for multi-components
1835       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1836       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1837       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1838       - ocean and atmos. share the same horizontal grid (no interpolation).
1839       - exchanges between component and coupler is done in forward_step
1840    o new verification experiment, cpl_aim+ocn:
1841       coupled ocean - AIM atmosphere on cs32 grid.
1842    
1843    checkpoint52d_pre
1844    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1845    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1846    
1847    checkpoint52c_post
1848    o Fixing OPTIONS files for use of exf:
1849      - ALLOW_ECCO not needed
1850      - ECCO_CPPOPTIONS.h should not be included from
1851        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1852        as has been the case in the past
1853      - All cal/exf related options are currently set in
1854        single header file. Should remain so until we
1855        agree on a consistent new policy.
1856    o Removed all CPP options for cal package.
1857      cal has no more CPP options.
1858    o modified STOREs in GAD_ADVECTION
1859    o corrected key comp. for passkey
1860    
1861    checkpoint52b_post
1862    o new version: "thsice" of thermodynamic sea-ice pkg:
1863     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1864     - modify fluxes but do not change theta directly;
1865     - light cleaning of bulk_force pkg (still needed with thsice).
1866     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1867       + output_thsice.txt to test thsice & bulk_force pkgs.
1868    o put back grid & coriolis monitor output.
1869    checkpoint52b_pre
1870    
1871    o call "do_the_model_io" at the beginning (=> dump initial state)
1872    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1873    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1874      (need info on NUMBER_OF_PTRACERS)
1875    o missing PTRACERS headers in some routines
1876    o default tamc.h in pkg/autodiff supposed to crash
1877      to ensure proper customization
1878    
1879    checkpoint52a_post
1880    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1881      - moved surfaceTendencyTice from pkg/seaice to main code
1882      - subroutine FREEZE_SURFACE now limits only surface temperature
1883        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1884        => new output.txt for global_ocean.cs32x15 & global_with_exf
1885      - keep the old version of FREEZE for backward compatibility;
1886        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1887      - corresponding modifs for TAF directives
1888    o added surface flux output variables to TIMEAVE_STATVARS
1889    o time-averaged output for pkg/ptracers
1890    o fix problem with ECCO-related divided adjoint
1891      snapshot file was missing some ad-variables,
1892      but no warning issued by TAF
1893    
1894    checkpoint52a_pre
1895    o some bug fixes for #undef REAL4_IS_SLOW
1896    
1897    checkpoint52 = ecco_c52_e35
1898    o after testing adjoints of checkpoint51u_post
1899    
1900    checkpoint51u_post
1901    o this is the post-merge tag of the ecco-branch
1902      (needs another clean checkout and re-testing)
1903    o various natl_box_adjoint configs and results
1904      but no input fields
1905    o obcs adjoint not yet merged!
1906    o adding ECCO global 1x1 and 2x2 degree configs
1907    o updated/extended some store directives for seaice
1908    o pkg/ecco now containes ecco-specific part of cost function
1909    o top level routines the_main_loop, forward_step
1910      supersede those in model/src/
1911      previous input data.cost now in data.ecco
1912      (new namelist ecco_cost_nml)
1913    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1914    
1915    checkpoint51t_post
1916    o this is the pre-merge tag of the ecco-branch
1917    
1918    checkpoint51s_post
1919    o cleanup: removed various obsolete #define-s
1920    o pkg/grdchk
1921      - renamed 'ph-grd 3' to 'grad-res'
1922      - merged from ecco-branch
1923        (remaining bug fixes for obcs gradient checks)
1924      - additional high-precision output for testreport
1925        (grep for 'precision_grdchk_result')
1926    
1927    checkpoint51r_post
1928    o cleaned up or removed CPP_OPTIONS.h files
1929    o updated results for some of the tests to reflect the new
1930      optfiles (-ieee: -O0 instead of -O3)
1931    
1932    checkpoint51q_post
1933    o cd_code:
1934      - moved cd_scheme.F -> cd_code_scheme.F
1935      - separate read_checkpoint from cd_code_ini_vars.F
1936      - separated cd_code part from write_checkpoint
1937      - updated AD_SOURCE, generated .flow
1938      - added CD_CODE_VARS.h to the_main_loop
1939      - Moving cd_code specific store dir.s to pkg/cd_code
1940    o ctrl package totally restructured
1941      - pack/unpack now optional and decoupled from
1942        xx_/adxx_ I/O
1943      - ctrl_pack/unpack cleaned
1944        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1945      - confined inclusion of AD_CONFIG.h to where necessary.
1946    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1947    
1948    checkpoint51p_post
1949    o create initial cd_code package
1950      - WARNING: the initialization of fields within packages
1951        is broken because INI_FIELDS (where READ_CHECKPOINT is
1952        called) is called *before* PACKAGES_INIT_VARIABLES.
1953        This seems to be backwards since
1954        1) its important to initially zero the entire field including
1955           the "halo" region
1956        2) zeroing needs to be done *before* reading pickup info
1957           and the pickup call might or might not happen in any
1958           particular run
1959      - this needs an overhaul for R2
1960    o cleanup verification/*/code/GMREDI_OPTIONS.h
1961    o cleanup testreport
1962    
1963    checkpoint51o_post
1964    o bringing AD-related verif's up to date with genmake2
1965      - carbon/
1966      - global_ocean.90x40x15/
1967      - hs.94.1x64x5/
1968      - (front_relax/ )
1969    o (more) consistent directory structure for AD-related verif.'s
1970    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1971    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1972    o bug fix in find_alpha.F for MDJWF:
1973      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1974        change rho -> rho-rhoConst
1975      - replace call find_rho to find_rhonum
1976    o initialisation of rFlx extended to full array (required by TAF)
1977      and shifted to thermodynamics
1978    o removed PTRACERS.h in ptracers routine
1979    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1980    o Correcting initialisations for fVerU, fVerV.
1981    o helping TAF to recognize dependency on kUp for
1982      fVerU, fVerV
1983    o Replacing delZ by delR in pkg/ctrl/
1984    checkpoint51o_pre
1985    
1986    o undid all of cp51 pending some cleanups and discussion
1987    o added the [#include "AD_CONFIG.h"] statement to all files that need
1988       it for adjoint/tl #defines
1989     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1990     o removed tools/genmake since it no longer works
1991    
1992    checkpoint51n_post
1993    o modifications to make FREEZE flux visible to pkg/kpp
1994      - moved surfaceTendencyTice from pkg/seaice to main code
1995      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1996      - subroutine FREEZE now limits only surface temperature
1997        (this means new output.txt for global_ocean.90x40x15,
1998         global_ocean.cs32x15, and global_with_exf)
1999    o added surface flux output variables to TIMEAVE_STATVARS
2000    
2001    checkpoint51n_pre
2002    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2003    o added [#include "AD_CONFIG.h"] to all files that use the following
2004      defines:
2005      - ALLOW_ADJOINT_RUN
2006      - ALLOW_TANGENTLINEAR_RUN
2007      - ALLOW_ECCO_OPTIMIZATION
2008    
2009    checkpoint51m_post
2010    o incorporating changes to get TAMC/TAF working in genmake2
2011      - added new TAMC/TAF targets to the Makefile
2012      - various cleanups related to package handling
2013      - these changes should have no impact on the forward model
2014    
2015  checkpoint51l_post  checkpoint51l_post
2016  o changes to pkg/cal and pkg/exf that allow and speed-up long integrations  o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2017   - faster algorithm for cal_addtime.F   - faster algorithm for cal_addtime.F

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