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revision 1.137 by jmc, Wed Feb 26 03:29:08 2003 UTC revision 1.784 by jmc, Fri Apr 6 15:58:23 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  untagged  o Added capability for 3D specification of background vertical diffusion
8      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
9      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
10      "data" file that contains the 3D vertical diffusivity coefficients.
11    o ice dynamics (pkg/seaice) with thsice thermodynamics:
12      - add code within pkg thsice to advect & diffuse sea-ice fields
13      similar to (and will replace) what has been added in  seaice_advdiff.F,
14      but: - conserving Mass, Heat & Salt.
15           - better when using non-linear advection scheme (not yet fully tested)
16           - can also be used in atmospheric set-up (for now, only the diffusion).
17    
18    checkpoint58x_post
19    o IO option for global-file compact format:
20      - add options when generating topology (utils/exch2/matlab-topology-generator)
21      - add I/O capability (pkg/mdsio).
22      - adapt utils/matlab/rdmds.m to read this format.
23      for now long-line format not yet supported by pkg/mdsio (& exch2).
24    o shelfice: add a few diagnostics
25    
26    checkpoint58w_post
27    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
28      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
29      (and replace horiVertRatio in NH code).
30      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
31                         and tutorial_plume_on_slope (sensitive to truncation)
32    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
33      directly to drive seaice model (C-grid only)
34    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
35     - reintroduce computation of wind from stress,
36     - compute tau (in exf_bulkformulae.F) from windstress averaged to
37       mass points to avoid tau = 0
38     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
39    o rdmnc.m: make it work with "global" files created with gluemnc
40    o rdmnc.m : some improvements in dealing with singleton dimension
41      (tested on all testreport mnc output files).
42    o genmake2: disable pkg/profiles if netcdf test fails.
43    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
44    o move call to cal_readparms up to make calendar parameters/variable available
45      to all packages
46    
47    checkpoint58v_post
48    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
49      useDynP_inEos_Zc tested.
50    o pkg/exf: changes to properly interpolate/mask/scale initial fields
51    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
52      and portions thereof.  See read_cs.txt for description and examples.
53    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
54      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
55      following the great-circle arc between those 2 points.
56    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
57      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
58    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
59     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
60     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
61     - still needs work (not working with some options ; efficiency to improve)
62       and serious testing.
63     - use this scheme for temperature & salinity in 2 advection test exp.:
64       advect_xy & advect_xz, respectively.
65    
66    checkpoint58u_post
67    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
68    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
69    o testreport: add option "-skipdir" to skip some test.
70    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
71      momentum calculation.
72    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
73    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
74      remove checkpoint.F and the_correction_step.F (no longer used);
75      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
76    o add option (linFSConserveTr) to correct for tracer source/sink due to
77      Linear Free surface
78    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
79    o pkg/thsice: fix reading mnc-pickups
80    
81    checkpoint58t_post
82    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
83    o pkg/mdsio:
84     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
85       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
86       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
87     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
88     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
89       either MDS_READ_FIELD or MDS_WRITE_FIELD )
90     - new S/R (to replace MDSWRITEMETA), which allows to write more
91       informations (variable names, time ...) to meta files.
92     - modify rdmds.m to give back the meta file content.
93    o pkg/diagnostics: change vertical interpolation to be safer, and more
94       flexible (define p-levels to interpolate to in data.diagnostics);
95      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
96       diagnostic pointer.
97    o pkg/seaice: more cleaning up of seaice_growth, added many comments
98    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
99    o fix multi-category seaice:
100     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
101       SEAICE_MULTICATEGORY
102     - fix short wave heat flux
103    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
104       and allow to use EVP solver. Change forward lab_sea: test both EVP
105       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
106    o Initial check-in of lab_sea adjoint
107      (very similar to natl_box_adjoint/code_seaice)
108      * used C-grid and EVP solver
109      * used KPP, GM/Redi
110      * uses inAdExact=.TRUE.
111      * gradient checks fail for both ADM and TLM
112        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
113        f.d. gradients actually seem more problematic than ADM, TLM gradients;
114        issue is related to forward mismatch between g77 an ifort
115    o pkg/seaice: overhaul of thermodynamics
116     - growth.F and groatb.F are replaced by new routine seaice_growth.F
117     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
118     - move a few global fields out of SEAICE.h into seaice_growth.F and
119       make them 2D (FICE/QNETO/ ...)
120     - remove FO (it is the same as QNETO)
121     - introduce a few local fields to avoid modifying external fields such
122       as atemp, etc.
123    
124    checkpoint58s_post
125    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
126      changed exf_set_gen.F so that
127        genperiod=0 means input file is one time-constant field and
128        genperiod=-12 means input file contains 12 monthly means
129    o CG2D: use pre-computed solver main-diagonal (stored in common block);
130      this affects truncation error ; generate new output file for exp. which
131      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
132        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
133        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
134        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
135        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
136        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
137    o start implementation of deep-atmosphere and anelastic formulation
138    o verification: remove 2nd copy of input files and use script "prepare_run"
139      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
140    o mom_common/vecinv/fluxform: fix a few initialisation isssues
141    o profiles: fix for multithreaded case
142    
143    o diagnostics: rename few diags:
144      s/'PRESSURE'/'RCENTER '/g
145      s/'TICE    '/'oceFreez'/g
146      s/'TAUX    '/'oceTAUX '/g
147      s/'TAUY    '/'oceTAUY '/g
148      s/'SWFLUX  '/'oceQsw  '/g
149      s/DIFx/DFxE/g
150      s/DIFy/DFyE/g
151      and add few ocean-forcing diagnostics:
152      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
153    o modifications to pkg/seaice/growth.F and budget.F, which change results of
154      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
155      as actual snow thickness.  It now refers everywhere to effective snow
156      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
157    
158    checkpoint58r_post
159    o modifications to pkg/seaice/growth.F, which change results of
160      lab_sea experiment: fixes pertain to melting snow over open water, to
161      masking EVAP under sea ice, and to using the correct AREA variable for
162      computations of EVAP, PRECIP, HSNOW, and GHEFF
163    o add ability to read bathy, salt, and theta using MNC (off by def)
164    o add flooding algorithm and advection of HSNOW for pkg/seaice;
165      both are turned off by default and do no change any results
166    o seaice advection with pkg/thsice: a step toward the use of non-linear
167      advection scheme, but #ifdef or commented out for now (requires more EXCH).
168    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
169      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
170      in natl_box (affects results @ truncation level: update output.txt)
171    o multi-threading and IO:
172      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
173      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
174        (needed to work with SingleCpuIO): tested in all verif. exp.
175    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
176      affects the results (but none of the verification test uses this scheme).
177    o Adding some pkg/diagnostics capability to pkg/seaice
178      (will certainly be subject to changes)
179    o ctrl: adding new control variables:
180      lwflux, lwdown, evap, snowprecip, apressure, runoff
181    
182    checkpoint58q_post
183    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
184      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
185      high_res_cube configuration by 4% on Columbia.
186    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
187      add (in global_with_exf/code) a version of EXF_INTERP_READ without
188      dynamical allocation (seems to work in multi-threaded).
189    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
190      single CPU io) so that TAF does not have to see EESUPPORT.h
191    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
192    
193    checkpoint58p_post
194    o obcs: stop if obcs is used with useCDscheme = .true.
195    o shelfice:
196     - fix a sign error so that no slip at shelfice interface works
197     - remove stop for combination non-hydrostatic code and shelfice. That does
198       not mean, that the results are correct, but at least they are numerically
199       stable
200    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
201    o added adjoint exch routined for all exch*3d* routines
202      and updated flow directives
203    
204    checkpoint58o_post
205    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
206      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
207    o change controling S/R for writing pickup file (new S/R do_write_pickup)
208      and clean-up reading/writing of pickup files.
209    o fix local version of read/write pickup (NH part) in rotating_tank/code
210    o simplify EXCH interface:
211     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
212     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
213    o added the regrid package
214    o shelfice:
215     - add a simple boundary layer scheme to reduce noise
216     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
217    
218    checkpoint58n_post
219    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
220       local variable (not in common block).
221    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
222      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
223      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
224        to work with SingleCpuIO.
225    o add "_d 0" to real constant of pkg/cfc subroutines ;
226       update exp. cfc_exemple & tutorial_cfc_offline output files.
227    o multi-threading and IO:
228      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
229        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
230      - barrier before and after reading.
231      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
232      - avoid using MDS_WRITELOCAL for LAND pkg output.
233      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
234        common-block variables ; Allows multi-threading with master-thread IO.
235    o change default MAX_NO_THREADS from 32 to 4 ;
236      and stop cleanly when MAX_NO_THREADS is too small.
237    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
238    
239    checkpoint58m_post
240    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
241       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
242    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
243       keep global_ocean.90x40x15 (for AD testing) with former secondary test
244       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
245    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
246        add MITgcm_tutorials (= code + all the tutorials)
247    o ecco, option to compute cost for total ssh (mean+anom)
248    o consistent with addition of ptracer and ssh in pkg/profiles
249    o profiles: adding ptracer and ssh
250    o testreport: change multi-test output-file name
251      (from output.txt.{name} to output.{name}.txt)
252    o profiles: now ok for mutli-tiles case
253    o seaice: add 4 parameters for different advection schemes for area,
254      (effective) seaice thickness, enthalphy, and snow height. Their default
255      is the standard parameter SEAICEadvScheme
256    o calc_gw:
257     - add cosFacU in zonal viscous flux (harmonic.visc.).
258     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
259       of tutorial_plume_on_slope.
260    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
261    o calc_gw: true flux-form, account for horizontal grid spacing.
262      update rotating_tank results, but not plume_on_slope (affected at
263      truncation level, 11 digits).
264    
265    checkpoint58l_post
266    o calc_gw:
267     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
268     - remove side-drag for now (need to fix it); update plume_on_slope results.
269     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
270    o commit code to make SST/SSS weights spatially variable
271      (based on either variable in-situ or variable initial T/S weights)
272    o pkg/ecco:
273      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
274        now based on horizontally varying weights wthetaLev, wsaltLev
275      * cost_averagesflags now returns year indices in addition to day, month
276      * sflux balance is performed on annual basis
277        (sflxumm, sfluxmm2, bal_sfluxmm)
278      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
279        including separate counting and multipliers
280    o pkg/rbcs
281      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
282    
283    checkpoint58k_post
284    o testreport:
285     - always build in dir. "build" (if not there, mkdir build instead of building
286       & running in input)
287     - run in dir run (if it exists), in build otherwise.
288     - call prepare_run (if input/prepare_run exists)
289     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
290    o pkg/exf modifications to interpolation and rotation routines for more
291       reasonable treatment of North Pole singularity: for tracers North Pole
292       value is set to northernmost zonal-mean value, for zonal velocity it is
293       set to zero, and for meridional velocity it is set to northernmost value.
294    o pkg/exf/exf_check_range.F
295     - add tile index to diagnostics and move stop statement to the very
296       end of the routine.
297    o pkg/diagnostics: (diagnostics_main_init.F)
298      define title of isomorphic variables according to the current config.
299    o pkg/thsice with pkg/seaice dynamics:
300    - fix domain of computation (interior only, required for exf) and do exchanges
301    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
302    o towards a standard way of dealing with multi-threading in MONITOR
303      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
304    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
305       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
306    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
307    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
308    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
309       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
310    o tracer advection:
311     - clean-up and simplify calc_common_factors.F
312     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
313       advection subroutine (but still not used within DST advection S/R)
314    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
315    
316    checkpoint58j_post
317    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
318      from file (collects calls previously in FORWARD_STEP)
319    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
320    o adjoint store dir. adjusted accordingly
321    o genmake2
322      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
323    
324    checkpoint58i_post
325    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
326      on wind stress (SEAICEstressFactor defaults to 1.)
327    o Total number of Timers is finite (<=40): comment out 2 non-essential one
328      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
329    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
330      on CS-grid: no longer loosing mass.
331    o exf & curvilinear-grid: no longer modify longitude xC & xG.
332    o pkg/ggl90: fix sloppy output and fix a bug
333    o pkg/seaice: added SEAICEuseEVPpickup parameter
334      - Set to false in order to start EVP solver with
335        non-EVP pickup files when using SEAICEuseEVP
336      - fix sign error in diffusion in seaice_calc_rhs
337    
338    checkpoint58h_post
339    * Modifications for bottom topography control
340      o replace hFacC by _hFacC at various places
341      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
342      o add non-self-adjoint cg2d_nsa
343      o update autodiff support routines
344      o re-initialise hfac after ctrl_depth_ini
345      o works for 5x5 box, doesnt work for global_ocean.90x40x15
346    * Adding verification for 5x5 box (4-layer) bottom topography control
347    
348    checkpoint58g_post
349    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
350       used for mean seasonal cycle, mean diurnal cycle); add an example
351       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
352    o pkg/ggl90:
353      - add parameter (minimum surface kinetic energy)
354      - fix bug (avoiding division by zero)
355    o couple pkg/thsice to pkg/seaice:
356      - modify advection in seaice to accomodate new scalar fields to be advected
357      - only muliDimAdection scheme work with seaice/thsice
358      - mapping of thsice-variables to seaice-variables, back and forth
359      - does not break the verification experiments, but does not give the
360        desired results either
361    o pkg/seaice
362      - make (default) second order advection a bit less confusing?
363    
364    checkpoint58f_post
365    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
366      to pkg/seaice):
367      - new routines thsice_map_exf and thsice_get_exf provide the interface
368      - add an additional formal parameter to thsice_solve4temp
369    o pkg/exf:
370      - add new fields wspeed, snowprecip (to be able to couple to thsice)
371      - correct Stefan-Boltzmann constant
372      - new parameter for longwave surface emittance
373      - separate some stuff from exf_bulkformulae into new routines  
374        exf_radiation, exf_wind
375      - add new parameters and constants: longwave emissivity for ocean, ice
376        and snow, evaporation parameters over ice
377      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
378        either wind from stress or stress from wind
379    o pkg/thSIce:
380    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
381    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
382       and THSICE_CALC_THICKN
383    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
384    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
385      to make debugging easier.
386    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
387    o pkg/bulk_force:
388      - clean-up comments and parameters ;
389      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
390    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
391      generate new output for test-experiment: aim.5l_cs.thSI
392    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
393      testreport accordingly
394    
395    checkpoint58e_post
396    o SEAICE_CGRID adjoint done
397    o R_STAR adjoint implemented.
398      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
399      * need to sort out init. of h0facc, etc.
400    o Make pkg/profile fully independent of ecco,cost, etc. stuff
401      to be able to use it in pure forward.
402    
403    checkpoint58d_post
404    o upgrade simple test-experiment to tutorial example:
405     step.1: duplicate the experiment and (step.2) will remove the old copy.
406      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
407      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
408      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
409      tutorial_global_oce_biogeo    <- copy of dic_example
410      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
411      tutorial_plume_on_slope       <- copy of plume_on_slope
412      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
413      tutorial_global_oce_optim     <- empty for now (David ?)
414      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
415     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
416    o correct a sign problem in cost_scat.F
417    o obcs and ptracers: fix boundary conditions for advections schemes
418      with larger stencil
419    o thsice adjoint: start
420    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
421      completeness
422    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
423      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
424    o ptracers adjoint:
425      * avoid extensive recomputatations
426      * fix missing re-init. of gptr (missed by TAF)
427    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
428      me to turn off the excessive output to STDOUT that this package produces
429    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
430      and add those terms in Vector-Invariant formulation.
431    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
432      if the control period (xx_hfluxperiod etc) is 0
433    o in profiles pkg, clean routines and fix details
434    o in ecco pkg, reading ssh data:
435      fix problem in case the model does not start at iter0=0
436    o fix mnc-pickup/restart for ptracers
437    o new package prifiles:
438      code to compute profile-based cost by Gael Forget
439      (modifs in ecco, ctrl, autodiff)
440    o Benign bug fix in initialization (spotted by M. Mazloff) of
441      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
442    
443    checkpoint58c_post
444    o adjoint: finish NLFS adjoint and provide reference output in
445      verification/global_ocean.90x40x15/results_ad_nlfs
446    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
447      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
448      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
449      with SEAICE_CGRID defined.
450    o move calendarDumps from "data" to "data.cal" and clean-up the code
451      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
452    o add useEXF & useCAL flags (for now, set in hard-coded way)
453    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
454      (were missing in NH mode, and wrong in quasihydrostatic mode).
455      waiting for Chris updated version of calc_gw to add those CALLs.
456    o fix bug in quasihydrostatic S/R ;
457      add a test for this option: global_ocean.90x40x15.qshyd
458    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
459      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
460    o add on/off flag useOffLine for package OFFLINE
461    o seaice:
462      - modify advection so that it works also on the C-grid
463      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
464        problem in multi-tile runs with C-grid
465      - add flags for clipping ice velocities and/or masking solver forcing
466      - fix drag (ocean on ice) formulation and a bug that caused noise in the
467        C-grid solver
468      - added a few comments to seaice_diffusion.F
469      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
470        are now exclusive)
471      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
472        required re-ordering the code a little:
473       + make DAIRN global variable (defined in SEAICE)
474       + move computation of the viscosities eta and zeta into a new separate
475         routine (because I need to recompute them in seaice_ocean_stress.F)
476    
477    checkpoint58b_post
478    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
479      update output.txt of exp. aim.5l_cs.thSI
480    o various mnc cleanups and improvements:
481      + shrink lookup tables by factor of ~4
482      + better error reporting when running out of lookup space
483      + able to handle longer path/file names (up to 500 chars)
484    o adjoint:
485      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
486      - TBD: "hidden" mom_vecinv recomp. in dynamics
487    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
488     (allow to differentiate between forcing components using new integer flags:
489      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
490     and add new flag to put Dissipation tendency out of Adams-Bashforth.
491    o ecco
492      - enable trend removal from SSH anomaly obs.
493    o adjoint
494      - a fix for PmEpR when #undef EXACT_CONSERV
495      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
496      - try to fix "hidden" recomp. in forward_step for NLFS
497        (NLFS seems broken sometimes after I checked it in)
498    o seaice:
499     - add c-grid version of the dynamic solver:
500       + three new routines that are the c-grid substitute lsr, dynsolver
501         and ostres
502       + put a few fields that were local to dynsolver into global common
503         blocks, so that I can move the computation of stresses etc into
504         seaice_lsr (saves coding but may break the adjoint).
505     - replace more hardwired parameters by runtime parameters
506     - add ice masks that mask the rhs of the implicit solvers where there
507       is no ice (commented out in seaice_dynsolver, because i am not sure
508       if this works properly), eventually this should replace the clipping
509       of ice velocities in seaice_dynsolver to +/-40cm/s.
510    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
511      include it only where its needed
512    o move balancing of fluxes before the call of external_forcing_surf
513    o seaice:
514      - correct units of turning angles (now they are really in degrees)
515      - move computation of GWATX/Y out of main routine into dynsolver
516      - initialize GWATX/Y in seaice_init
517    o Apply mask on Fresh-Water flux (needed for SSH forcing).
518      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
519    o seaice: add runtime flags for turning angles (default to zero)
520    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
521      and trend from exf forcing and ctrl control adjustments
522    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
523      (since checkpoint57x_post)
524    o change the default rotation period to 86164.s = the Earth rotation
525    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
526      and based on a reference stratification. Tested within hs94.cs-32x32x5.
527    o seaice advection: add code for choosing between the default (2nd order
528      central differences) and multiDim advection schemes provided by
529      pkg/generic_advdiff
530    o seaice:
531      - removed all references to SEAICE_GRID.h fields from
532        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
533        (cubed-sphere configuration will change a little)
534      - grid computations in seaice_init are obsolete now.
535      - cleaned up code a little so that is easier to read (hopefully).
536      - added new (better?) discretizations of default advection and diffusion
537        (turn on with SEAICEuseFluxForm)
538      - replace 1 in 3d global fields by kSurface in growth.F
539      
540    checkpoint58a_post
541    o seaice:
542      - bug fix in advect.F
543    o shelfice:
544      - separate shelfice load anomaly from pload (breaks with time
545        dependent forcing), => introduce constant field shelficeLoadAnomaly.
546        Its default is 0., but it may be computed more cleverly from (unknown)
547        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
548        done offline. A good approximation of the pressure load anomaly is
549        necessary to avoid large initial adjustment processes underneath
550        deep-reaching shelfice.
551      - small fix in ISOMIP shelfice_thermodynamics
552      - add more sophisticated thermodynamics of Hellmer (1989), this is
553        now the default
554      - give a few constants more intuitive names
555    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
556      if bulk formulae are used in long integration (especially EmPmR). Turn
557      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
558      if balancePrintMean, the imbalance that is substracted is printed to
559      STDOUT.
560    o fix bug (typo) in obcs_apply_eta.F
561    o add a new package shelfice which enables us to model the circulation
562      underneath shelf-ice with draughts of hundreds of meters.
563     - works
564     - to do: + include improved thermodynamics
565              + check whether kSurfC (from model/inc/SURFACE.h) can be used
566                instead of new field kTopC
567              + can we use topoFile, Ro_surf and existing code in ini_depth.F
568                instead of new field R_shelfIce and new code in ini_depth.F
569                and ini_mask_etc.F?
570              + adjust vertical mixing schemes?
571    o seaice pkg:
572     - add a cpp-flag to include a simple formula for a salinity dependent
573       freezing point of sea water at the surface
574     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
575       meridional stresses are now different (and hopefully correct)
576    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
577       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
578       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
579    o pkg/diagnostics: add options and parameters for regional-statistics
580       diagnostics ; define regions by reading a region-mask from a file
581       (might add other options later)
582    o pkg/bulk_force:
583     - add option and parameters to use AIM surface-flux formulae.
584     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
585       others forcing fields (defined in PARM05, parameter file "data") are loaded
586       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
587     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
588     - use the right EXCH call for uwind,vwind (to work on CS-grid).
589     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
590       and parameters (note: calcWindStress replaces .NOT.readwindstress).
591     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
592    
593    checkpoint58
594    o add "--embed-source" option to genmake2 which, when the supporting
595      tools can be compiled (as determined by genmake2) will turn on the
596      embed_files package which then embeds the entire MITgcm source code
597      (*.[fFhc] + Makefile) used for the build within the executable
598      - requested by CNH but off by default
599      - adds a paltry <9MB to the mitgcmuv executable in most cases
600      - only writes the output when useEMBEDSRC in eedata is true
601    o clean up 3-dim. relaxation codes:
602      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
603      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
604      * Thanks to Tom Haine for testing!
605    
606    checkpoint57z_post
607    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
608      affects output (@ truncation level) of exp. plume_on_slope ; updated.
609    o fix the pickup behavior for obcs in combination with ptracers
610    o fix a bug in ptracers_external_fields_load
611    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
612      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
613    o transfered surface NH pressure to eta field (if exactConserv).
614    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
615         and update lab_sea output.txt file.
616    o completing 3-dim. relaxation code: additional term
617         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
618      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
619      * At compile time, in "EXF_OPTIONS.h" set
620          #define  ALLOW_CLIMTEMP_RELAXATION
621          #define  ALLOW_CLIMSALT_RELAXATION
622      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
623          tauThetaClimRelax3Dim = 15552000.0,
624          tauSaltClimRelax3Dim  = 15552000.0,
625      * 3 cases:
626          1) Use a constant-in-time 3-dim. field
627          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
628          3) Real-time relax. to time-evolving prescribed field
629    o Adding Laplacian-type smoothness constraint on
630      initial and boundary (forcing) controls (ic, bc)
631      * enable at compile-time via
632        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
633      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
634      * Absolute scale somewhat unclear so far
635      * no area weighting was included since no other cost term does so far
636    
637    checkpoint57y_post
638    First step for a NLFS adjoint
639    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
640    o new init. routines for calc_r_star, calc_surf_dr
641    o still need to deal with ini_masks_etc
642    o testreport seemed happy
643    checkpoint57y_pre
644    
645    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
646    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
647    o add new offset feature to offline pkg (plus minor cleanup)
648    o cfc fixes for final year of integration
649    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
650      be in GCHEM_OPTIONS).
651    
652    checkpoint57x_post
653    o fix testreport Pb in multiple test experiment.
654    o cleanup our namelist syntax in verification:
655      - make it more F95 standards compliant (some work still needed)
656      - allows the vast majority of our tests to work with gfortran
657    o Non-Hydrostatic:
658     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
659     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
660    o Allow to apply AB on T,S rather than on AB(gT,gS):
661     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
662     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
663       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
664     - need a "clever" read_pickup to restart from the other AB formulation
665    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
666    o remove some unused variables (reduces number of compiler warnings)
667    o adjoint
668      * Disable useVariableViscosity for adjoint for time being
669        (there are a number of extensive recomputations)
670      * Initialize certain variables needed for adjoint
671    
672    checkpoint57w_post
673    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
674                 fix the singleCpuIO RS version of MDSWRITEFIELD
675       and add a WARNING if using globalFiles=T with multi-processors.
676    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
677      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
678    o tracer advection scheme:
679      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
680       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
681       was not very convenient).
682      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
683       (further tests needed for the implicit DST & Flux-Limiter schemes).
684    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
685      and sRef for convenience, handy, when you want to initialize
686      ptracers in a large domain with a constant non-zero value. Also,
687      untangle ptracers_init.F a little.
688    
689    checkpoint57v_post
690    o change dome exp. to use variable viscosity in side-drag terms.
691    o remove all the files from the cfc_offline test since they are now
692      incorporated into tutorial_cfc_offline which has been producing
693      identical results for a few days of testing
694    o add new parameter: sideDragFactor to enable half-slip-side BC
695      and change side-drag S/R to use viscosity from mom_calc_visc
696      (can switch back by setting sideDragFactor=0.); affects results at
697      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
698       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
699    o vorticity & strain are now computed without masking, to account for
700      no-slip-side BC in variable viscosity calculation ; mask is applied
701      anyway later on, before computing advection/coriolis terms.
702    o modify exp4 to test new obcs support for reading from external files
703      and for passive tracers
704    o fix behavior of ptracers_monitor when monitor output is written to a
705      netcdf-file; still not independent of monitor.F (writes in the same
706      file).
707    o change default value of tRef (put a uniform, meaningful value for ocean
708      & atmos) and initialize sRef (was missing, as Martin mentioned).
709    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
710      to be proportional to enstrophy dissipation length.  Thus,
711       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
712      This is now consistent with Smagorinsky and with the manual.
713    
714    checkpoint57u_post
715    o OBCS and PTRACERS: add open boundary support for passive tracers
716      - either use homogenous (pseudo) v.Neumann conditions or prescribe
717        OB-values from file; this is not different from the way theta and salinity
718        are treated
719      - however, Orlanski-radiation conditions are not supported, and the model
720        will stop if you use pTracers and Orlanski at the same time.
721      - beefed up the rountine obcs_external_fields_load: now only those open
722        boundary values are overwritten with values from files for which there
723        are really files, otherwise the OB-fields remain untouched. This makes
724        it possible to use different OBs at different ends of the domain (as
725        with EXF)
726    o reduce number of exch calls in shap_filt (s2).
727    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
728      truncation level) 4/5 MLAdjust test results (11&12 digits match).
729    
730    checkpoint57t_post
731    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
732    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
733      same truncation, independent of the face number: affects affects several
734      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
735    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
736      note that biharmonic viscosity + no-slip was not tested in any experiment.
737    o fix bug in non-linear free-surf side-drag ; generate new output for
738      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
739    o make mnc honor the writeBinaryPrec flag for most kinds of output
740    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
741    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
742      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
743    o add brackets in multi-terms sum to get same truncation, independent of
744      the face number (manage to get exactly same value of gU,gV at the cs-edge)
745      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
746    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
747      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
748      a maximum grid-scale Reynolds number.  Also, changes all length calculations
749      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
750      Suggested values of viscosity parameters found in mom_calc_visc.
751      Many new viscosity diagnostics available.
752    
753    checkpoint57s_post
754    o Add clearing-house for viscosity calculations, mom_calc_visc and
755      correct numerous bugs in LeithD and Smagorinsky discretizations.  
756      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
757      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
758      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
759      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
760      The Strain-Tension form is now called with useStrainTensonVisc=.true.
761      ViscAhStrain and viscAhTension are now retired.
762    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
763    o In response to JMC's bug report, genmake2 now ignores any soft-links
764      that it finds in the *current* directory when searching for files.
765      Soft-links found in any other source directories will still work as
766      they did before.
767    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
768      a C routine to unlimit the stack size
769    o mnc-ify pkg/aim snapshot vars
770    o mnc-ify pkg/land as requested by Daniel
771    o various changes to mnc including:
772      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
773      - output can now be grouped so that all files within a group
774          change the ITER portion of their names in lock-step together
775      - can now read ("global") PER-FACE (in addition to PER-TILE) files
776          and works with both EXCH1 and EXCH2 (but needs more testing)
777      - writing works for all verification test cases w/ g77 on Linux
778    
779    checkpoint57r_post
780    o make MNC variable initialization happen earlier
781    o add diagnostics for (almost) each term of the momentum Eq.
782    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
783    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
784    o remove MINIMAL_TAVE_OUTPUT option ;
785      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
786    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
787      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
788    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
789    o add time-dependent SST, SSS control
790    o cost terms in ecco/ modularized (new cost_generic.F)
791    o cost_averages routines are modularized (new cost_averagesgeneric.F)
792    o new infrastructure for seaice model vs. obs misfits in seaice/
793      * driver from the_main_loop.F is seaice_cost_driver.F
794      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
795      * gradient check in Exp. 6a of natl_box_adjoint/
796    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
797      (see README file)
798    
799    checkpoint57q_post
800    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
801    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
802      - bug was reported by Jean-Michel and Ian Fenty
803    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
804      update exp. cpl_aim+ocn output.
805    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
806      Needed for high-res. runs with large global files
807      to be able to limit tapelev size
808    o Changed some tests for adjoint:
809      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
810      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
811      * global_ocean.90x40x15/ back to default 3-level checkpointing
812    o Modifications to enable scripted COMMON to MODULE conversion
813      * verification/OpenAD/code/ has necessary scripts and description;
814      * converts, compiles and runs successfully;
815    
816    checkpoint57p_post
817    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
818    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
819      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
820    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
821    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
822      (was already the case for dissipation with mom_vecinv,
823       and also the case for grad.PhiHyd when staggered-timeStep)
824      This will allow to put dissipation out-off the AB time-stepping.
825     Unfortunately, affects truncation error. Update output of exp. that "fails"
826      (cg2d matching number) and leave the others for later: front_relax(10),
827      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
828      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
829    
830    checkpoint57o_post
831    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
832      (2) its ready to be documented during the 20050801 DocFest
833    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
834      for ideal_2D_oce and lab_sea on linux_ia32_g77
835    o set to #undef CTRL_SET_OLD_MAXCVARS_30
836      in global1x1_tot/code_seaice_adj to access indices 32, 33
837      (worth another tag)
838    
839    checkpoint57n_post
840    o adding precip control xx_precip 32
841    o adding swflux control xx_swflux 33
842    o Replacing 10 forcing penalty cost routines by 1 generic.
843    o Implementing partitioning in time-mean and variable adjustment
844      for atmos. state.
845    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
846    o in natl_box_adjoint:
847      * updated exp 1 to 10
848        (but does not have time-mean vs. variable split results yet)
849    o updated global1x1/*_seaice_adj/
850      to incorporate latest changes
851    o enable useSingleCpuIO for mdsio vector routines
852      (applies in particular to tapelev I/O)
853    o removed inefficient K-loop in all active_file*control*.F
854    
855    checkpoint57m_post
856    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
857      and advect_cs (use EXCH-2 and standard cs-32 grid files).
858    o pkg/exch2: filling of face-corner halo regions is optional
859      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
860    
861    checkpoint57l_post
862     tag before updating tutorials (pre-release-2)
863    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
864       for output and interpolation of input fields onto model grid)
865    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
866       Affects results of exp. rotating_tank ; update output.txt.
867    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
868          and taking the square quantity and/or using a fraction-weight field.
869    o fix aim_diagnostics_init.F mate numbers.
870    o add mnc output capability to diagnostics/diagstat and update
871      our cvsignore files for the ACSII output generated
872    
873    checkpoint57k_post
874    o lab_sea now uses diagnostics package and provides a suite of
875      new EXF diagnostics output.
876    
877    checkpoint57j_post
878    o exf
879      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
880        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
881        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
882      * extended diagnostics output
883        - now includes all EXF variables
884        - hs, hl moved to common block
885        - separate S/R for diagnostics, called after ctrl vector is added
886        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
887        - EXFqnet contains true Qnet (i.e. includes qsw)
888      * updated verif. lab_sea, global_with_exf
889      * Rearranging hflux (exf_mapfields -> exf_getforcing)
890        to ensure that diagnostics sees a true EXFqnet
891    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
892    o diagnostics pkg: change pointers so that 1 diagnostic can be used
893      several times with different frequencies.
894    o mnc-ify the thsice package as requested by Daniel Enderton
895      - the monitor--MNC output needs work
896      - many attributes need to be added (most are currently blank)
897    o mnc-ify theaim_v23 package as requested by Daniel Enderton
898      - many attributes need to be added (most are currently blank)
899    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
900    o add Sadourny like discretization to the 4th.O vorticity advection scheme
901    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
902      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
903         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
904    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
905     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
906    
907    checkpoint57i_post
908    o Diagnostics package was changed: diagnostic allocation is now deactivated
909      by setting an empty file name in the namelist (used to be by setting 0 frequency)
910    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
911      add 1rst Order upwind vertical Shear.
912    o add a quick fix for A/B checkpointing in OFFLINE mode
913    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
914      end-run around the C/Fortran linking horror in eesup/src/timers.F
915    o added pkg/runclock: allows user to terminate run based on wall clock
916    o added non-hydrostatic scaling parameter: nh_am2
917    o pkg/my82: futile attempt to make results compiler-independent by adding
918      some "_d 0", etc. no effect.
919    o for mnc output, fill the 'T' coordinate var with myTime and create a
920      separate 'iter' variable for iteration count
921    o pkg/diagnostics:
922      add new capability: output of Global/Regional & per-level statistics ;
923      tested against monitor output (including land & thSIce) on various exp.
924    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
925    
926    checkpoint57h_done
927      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
928      data.diagnostics, data.gchem, data.ptracers) is done.
929    
930    o pkg/diagnostics: prepare for Global/Regional statistics.
931      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
932    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
933      and rename it: DIFFERENT_MULTIPLE
934    
935    checkpoint57h_post
936    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
937    o pkg/diagnostics: change output frequency, now in seconds (instead
938      of Nb of iterations). This requires to change data.diagnostics.
939    checkpoint57h_pre
940    
941    o in mnc, let the user create the output dir if both mnc_outdir_date
942      and mnc_outdir_num are false
943    o add fflags() to pkg/diagnostics which allows one to specify, on a
944      per-file basis, the file precision [default behavior is unchanged]
945    o added diagnostics to pkg/kpp, including computation of mixed layer
946      depth based on a temperature/density criterion
947    o updated verification/natl_box to test the new pkg/kpp diagnostics
948    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
949    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
950    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
951      not mnc -- this mistake was found by JMC and is now corrected
952    
953    checkpoint57g_post
954    o add Adams-Bashforth 3rd Order time stepping:
955      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
956      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
957    checkpoint57g_pre
958    
959    o make lambda[Theta,Salt]ClimRelax spatially varying
960      (default remains spatially uniform constant based on tau)
961    o added new control variables
962      * init. uVel, vVel, etanN
963      * lambda[Theta,Salt]ClimRelax
964    o separate masks used for ctrl_pack/unpack 'from write_grid' output
965      (suggested by G. Forget)
966    
967    checkpoint57f_post
968    o add parameter "baseTime" = model base time = time at iteration zero
969      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
970      account for baseTime shift
971    o move Coriolis arrays from PARAMS.h to GRID.h
972    checkpoint57f_pre
973    
974    o mnc-ifying the seaice package
975    o introduced an alternative length scale calculation for use in the limiting
976      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
977    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
978    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
979      as well as grad(vort3).  Made it compatible with both approximate form
980      for the cubed sphere and full form of these gradients.  Added flag
981      useFullLeith to select between approximate and full form.  
982    o add "d0" in getcon.F to reduce differences between compilers/platforms
983      update output.txt of exp. fizhi-gridalt-hs
984    o change port_rand funtion to allow to set the seed.
985    o fix obscure MNC bug involving conversion between reals and integers
986      - it caused no problems with certain (eg. gcc, ifc) compilers but the
987        new version is now more standards-compliant
988    o adjoint-related modifications
989      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
990      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
991      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
992    
993    checkpoint57e_post
994    o Adding eddy stress controls a la Ferreira et al.
995    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
996    
997    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
998      update output.txt of exp. fizhi-gridalt-hs
999    o add more "Z" dimensions and associated coordinate vars to MNC
1000    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1001    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1002      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1003      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1004      months and years.  Requires pkg/cal.
1005    o diagnostics: add pickup functionality
1006      - off by default for backwards compatibility
1007      - current version only uses MDSIO -- MNC will be added
1008    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1009    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1010    
1011    checkpoint57d_post
1012    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1013    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1014      output from the diagnostics package
1015    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1016    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1017      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1018    o add coordinate variables to the MNC output from the diagnostics package
1019    o change MNC-flags default value: true when useMNC=TRUE
1020    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1021      the ability (off by default) to read the grid information using MNC
1022    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1023    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1024    o do snap-shot diagnostics at the middle of the time-interval (instead of
1025      at the end).
1026    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1027      new test for AIM with thSIce + slab-ocean
1028    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1029    o move state variable diagnostics to the beginning of the time step ;
1030      (note: still needs some work specially for snap-shot diagnostics)
1031      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1032    
1033    checkpoint57c_post
1034    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1035    o generate new output.txt files on faulks with g77 & the new -ieee option
1036    checkpoint57c_pre
1037    
1038    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1039      update output.txt of exp. global_ocean.90x40x15
1040    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1041      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1042    o add saltFlux(+File) forcing capability with periodicExternalForcing
1043    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1044    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1045    o improvements for the MNC output from DIAGNOSTICS:
1046      - correct handling of the unlimitied dimension
1047      - all dims now have associated coordinate variables
1048      - variables located at U, V, and Corner ("Z") points are now written
1049        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1050        *all* data points are output
1051    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1052    o added pkg/seaice/seaice_monitor.F
1053    o mdsio_readfield.F can now read files visible only to master MPI process.
1054    o pkg/seaice: some test code for ice-modified ocean stress
1055    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1056      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1057      spurious negative numbers for precipitation and humidity.  Will cause
1058      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1059    o pkg/ctrl/
1060      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1061        May be enabled via doPackDiag
1062      *  introduce z-scaling of
1063         + gradient (doZscalePack) and
1064         + control (doZscaleUnpack)
1065    o pkg/mdsio/
1066      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1067      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1068    
1069    checkpoint57b_post
1070    o simplify options in diagnostics_fill arguments (remove weird combinations)
1071    o fix MNC coordinate variables so that they now contain per-face index
1072      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1073      general, EXCH2 grids are only aligned to a "local" coordinate system
1074    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1075    o Implement instantaneous output within pkg diagnostics:
1076      setting a negative frequency in data.diagnostics produces
1077     "snap-shot" output (as opposed to time-average if freq > 0)
1078    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1079      NOTE: change ptracer diagnostics name: use 2 characters to work with
1080            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1081    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1082      becomes the coordinate variable for the 'T' dimension
1083    o add CF-style coordinate variables to MNC
1084      - just a first cut:  numbers are meaningless on the cubesphere and
1085        missing along the T axis but otherwise it works!
1086    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1087    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1088    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1089      this is based directly on what the model compute, so that the content of
1090      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1091    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1092    o clean up build options files for SunOS, in particular
1093      - remove -traditional from xmakedepend
1094      - change -xarch=v9 to -xarch=native for f77
1095      - restore use of make (not gmake)
1096      - add CC=gcc if using g77
1097    o changes per discussion of AM, JMC, & EH3 today:
1098      - move redundant "grid" variables out of "state" -- in preparation of
1099        creating proper CF-style coordinate variables and in recognition
1100        that any/all grid variables can be easily copied (eg. w/NCO) from
1101        the grid files into any of the other NetCDF files
1102      - *always* output grid variables with MDSIO (this will eventually be
1103        changed)
1104      - output MNC grid file if useMNC is true
1105    o every instance of _END_MASTER() has been found and replaced with
1106      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1107      preprocessors
1108    o re-arrange diagnostics pkg initialisation:
1109     - allow each package to extend the available diagnostics list
1110     - add some checking and fix small problems (multi-threaded, ...)
1111     - new S/R diagnostics_fill (replace fill_diagnostics):
1112       look through the short list of active diag. (instead of the long list)
1113       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1114    
1115    checkpoint57a_post
1116    o this set of changes restores TAMC compatibility
1117      tested for global_ocean.90x40x15 adjoint on trough
1118      (what a pain)
1119    
1120    checkpoint57a_pre
1121    o some modifs in tools/build_options for sunos
1122    o call ctrl_pack for ctrl at end for optimcycle=0
1123    
1124    checkpoint57
1125    o add horizontal bi-harmonic viscosity for vertical velocity
1126      - new parameter viscA4W (defaults to viscA4)
1127      - affects only non-hydrostatic code
1128      - to be done: no-slip lateral boundary conditions
1129    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1130    o implement Implicit Vertical advection for pTracers
1131    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1132      (implemented also for implicit vertical diffusion & advection)
1133    o OBCS: extend application of tracer open boundary conditions
1134      to a strip beyond the boundary of width Olx/Oly
1135    o add call monitor to TAF set of required calls (flow directives)
1136      and include in natl_box_adjoint
1137    o untangle a few ifdefs related to cost, ctrl, autodiff
1138      untangel a few ALLOW_ECCO_OPTIMIZATION
1139    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1140      (theta2, salt2 in ecco_cost_weights)
1141    
1142    checkpoint56c_post
1143    o OBCS as control variables
1144      - update ctrl_ad_diff.list, obcs_ad_diff.list
1145      - remove balance of obcs controls from default
1146      - fix index bug nobcs in ctrl_init
1147      - fix dummy fields filen in ctrl_pack
1148      - add dummy weights for obcs
1149    o lsopt: comment out fort.94 output
1150    o optim:
1151      - remove unnecessary header files
1152      - adjusted namelists
1153      - add xerbla.F to Makefile
1154    o exf:
1155      - multiple modifications of exf_check_range
1156      - unit change in exf_init_runoff from [m/year] to [m/s]
1157    o mdsio:
1158      - i/o-vector change debugLevel from debLevA to debLevB
1159    
1160    checkpoint56b_post
1161    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1162      is called from DO_THE_MODEL_IO
1163      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1164      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1165      - clean up PTRACERS_WRITE_TIMEAVE a little
1166    o add another verification experiment that tests both the cfc-pkg and
1167      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1168      reactive tendencies treated inline with regular timestepping
1169    o testreport previously did a lousy job of comparing small numbers, so
1170      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1171      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1172      testreport.
1173    o ptracers_monitor: bug fix for MPI
1174    
1175    checkpoint56a_post
1176    o GCHEM: finish reorganizating the package
1177      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1178        (introduces another 3D-array for each passive tracer, but only if
1179        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1180        gchemTendency is not needed because the timestep is done separately)
1181      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1182      - GCHEM is now---more or less cleanly---separate from PTRACERS
1183      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1184        so clear to me how that should be done in a general way.
1185    o CFC: improve formatting of output in CFC_ATMOS
1186    o PTRACERS:
1187      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1188        that ALL experiments with ptracers enable can be checked. This makes
1189        GCHEM_MONITOR obsolete.
1190      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1191        monitorFreq
1192      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1193    o add PTRACERS (PTR0[1-5]) to testreport output
1194    o exf_check_range:
1195      * default changed to .TRUE.
1196      * will check values for niter0 if debLevA, every timestep if debLevB
1197      * STOP in exf_check_range if 'out of range'
1198      * range chosen generous to allow for potential extema
1199      TBD: a version with stricter range
1200           permitted range would be runtime parameters
1201    o GMredi:
1202      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1203      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1204      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1205    o GCHEM:
1206      - move call to GCHEM_FORCING_SEP, so that it is now called before
1207        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1208      - introduced a useGCHEM runtime flag and applied it everywhere.
1209      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1210        this flag is now only visible within GCHEM-pkg routines.
1211      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1212        be replaced by a 3D array that is computed before thermodynamics; for
1213        this, the tracer ID iTracer had to be included into the parameter list
1214        of ptracers_forcing
1215      - set up forward_step to call gchem_forcing, that will replace
1216        gchem_forcing_int in ptracers_forcing
1217      - cleaning up
1218    o small cleaning of exch2: remove files that are also in eesupp/src
1219    
1220    checkpoint56
1221    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1222    o mnc: cleanup "full" files--fixes out-of-memory problem
1223    o ECCO-GODAE
1224      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1225      * fully merged and updated from SIO code
1226        windstress sign change affects
1227        - exf_inscal_[u/v]stress
1228        - sign of xx_tau[u/v] adjustments
1229        - signs in cost_scat
1230      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1231      * natl_box_adjoint updated and compressed
1232      * 2-level checkpoint switch added
1233        (tested in EXP. 1 of natl_box_adjoint)
1234      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1235    o SVD
1236      * first complete, non-hacked version for SVD calculations
1237      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1238        performed via direct access files admtlm_vector.it????
1239        (via ctrl_[un]pack)
1240      * optimcycle is used for ARPACK iteration counter
1241        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1242      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1243        and add linear transforms where necessary
1244      * controls are initial/final SST, SSS (can be extended; need to check
1245        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1246    o mdsio: filename info to both stderr, stdout
1247    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1248      from sign change
1249    
1250    checkpoint55j_post
1251    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1252      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1253    o add consistent build directories and .cvsignore files to verification
1254    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1255    o make all subroutines 30 or less characters in length for certain older
1256      compilers to work (a thorough search only turns up two routines in
1257      pkg/ptracers)
1258    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1259      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1260    
1261    checkpoint55i_post
1262    o change arrays for total vertical diffusivity (2.D if explicit,
1263      3.D if implicit) ; each ptracer uses its own background value.
1264    o added mnc/NetCDF output capability to ocn_compon_interf
1265      - added bits to verification/cpl_aim+ocn so that it can run on
1266        ITRDA and other clusters without the mpirun "-wd" option
1267    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1268      configuration
1269    o give MNC the ability to create additional files rather than
1270      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1271      - the default is just less than 2GB which is a practical limit
1272        on many systems
1273    o Compute the non-local term using either KPP vertical diffusivity (=default)
1274       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1275    
1276    checkpoint55h_post
1277    o add verification test "vermix"
1278    o remove all the *_ioinc flags and replace with the single global
1279      outputTypesInclusive flag
1280    o allow to set a vertical profile of vertical diffusivity for T & S
1281    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1282    o useMNC moved from data.mnc to data.pkg
1283    
1284    checkpoint55g_post
1285    o Renaming carbon AD experiments to comply with testreport conventions
1286    o Updating adjoint of Held-Suarez hs94.1x64x5
1287    o Fixing directives for non-ECCO forward_step, after ECCO directives
1288      have been fixed to avoid recomp. of do_oceanic_phys
1289      Works well for global_ocean.90x40x15,
1290      but recomp. issue remains for carbon
1291    o Updating adjoint output for natl_box_adjoint after
1292      pkg/ecco has been modified (see taga c55d_post)
1293    
1294    checkpoint55f_post
1295    o rename to timeave_init_fixed
1296    
1297    checkpoint55e_post
1298    o some delicate re-shuffle of store directives to avoid one
1299      extra call of do_oceanic_physics
1300      affects ecco_the_main_loop.F, do_oceanic_physics.F
1301      checkpoint_lev1_directives.h
1302    o NB: this may break global_ocean adjoint temporarily,
1303      but it is clear how to fix it. Will do later, need this now.
1304    
1305    checkpoint55d_post
1306    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1307    o ecco_cost_weights is modified to 1x1 runs
1308    o modifs to allow observations to be read in as
1309      single file or yearly files
1310    o enable to read exf forcing fields as either
1311      single file or yearly files (flag useExfYearlyFields)
1312    checkpoint55d_pre
1313    
1314    o switch between 2-level and 3-level checkpointing
1315    o add ability of MNC to write local and "partial" (eg. 2D slices where
1316      the full 3D field is never actually stored) arrays to NetCDF files
1317      with the correct (that is, the complete multi-dimensional) set of
1318      array indicies
1319      - used in mom_vecinv() to write the diagFreq output
1320      - tested (demonstrated) in verification/aim.5l_cs
1321    o further mnc-ification
1322      - add verification/lab_sea to the list with mnc setups
1323      - fix undefined mnc v-names in cd_code
1324      - add kpp to mnc output (both snapshot and timeave)
1325    o non-hydrostatic code
1326      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1327        in calc_gw.F
1328      - defaults to viscAh
1329      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1330        friction or Leith) in non-hydrostatic mode, as long as there is
1331        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1332    o pkg/cost
1333      extend simple cost functions to treat time mean quantities
1334      (T,U,V) via cost_accumulate_state from cost_tile
1335    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1336        be 2 times larger than the minimum size the advection scheme requires.
1337        now get a perfect conservation of salt in advect_cs test-exp (updated)
1338    o GGL90 (Gaspar's TKE mixed layer)
1339      - add horizontal diffusion of TKE, requires exchanges in
1340        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1341        default. In OPA there is no horizontal diffusion of TKE but the
1342        mixing coefficients are computed from a horizontal average of TKE of
1343        6 points or so. I think that diffusion has a little more physical
1344        justification.
1345      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1346        was in vain)
1347      - mask tke-variable in ggl90_init
1348    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1349    o fix biharmonic diffusion on CS-grid.
1350    o more obcs stuff
1351      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1352        for reading boundary values. This routine is called from
1353        obcs_prescribe_read
1354      - updated obcs_check
1355      - changed sponge layer relaxation parameter units for days to seconds
1356      - turned off sponge layer by default
1357      - changed argument list of OBCS_CALC to myTime+deltaTclock
1358      - fixed about 35 bugs in obcs_external_fields_load
1359    
1360    checkpoint55c_post
1361    o obcs stuff
1362      - new runtime flags useOBCSprescribe, useOBCSbalance
1363      - re-arranged obcs_calc
1364      - moved exf_getobcs to obcs_prescibe_read
1365        obcs_prescibe_read is called after ORLANSKI stuff
1366        and independent of it (executable can contain all).
1367      - updated obcs_check
1368      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1369        These may be necessary only if tangential velocities are
1370        prescribed at OB, not sure, needs testing.
1371    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1372      which simplifies the calls and passes the ifc check-bounds test
1373    
1374    checkpoint55b_post
1375    o add a 2D scalar, Z location, exchange_2 routine.
1376    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1377      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1378      affects advect_cs results (for the wrong reason): update output.txt
1379    o use a more standard discretization for biharmonic viscosity ;
1380     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1381      affects results of dome set-up: update output.txt
1382    o fix gad_advection.F (CubedSphere part), back to version 1.23
1383    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1384    
1385    checkpoint55a_post
1386    o merged code to
1387      * prescribe/read time-dependent open boundaries
1388        (works in conjunction with exf, cal)
1389      * sponge layer code for open boundaries
1390      * each boundary N/S/E/W now has its own CPP option
1391        (healthy for the adjoint)
1392    
1393    checkpoint55
1394    o up-to-date adjoint of previous breaks
1395      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1396      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1397      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1398      - carbon: * remove tr1-related adjoint verification
1399                * add ptracer as control variable
1400    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1401      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1402    
1403    checkpoint54f_post
1404    o in verification/carbin/ remove experiment related to
1405      ALLOW_PASSIVE_TRACER (array tr1 etc)
1406      code_ad/ input_ad/ results_ad
1407    
1408    o add two new packages
1409      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1410        + subject to optimization (memory)
1411      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1412        + subject to reordering (many GOTOs in the original code)
1413        + so far opps is called for every (i,j) point, and then operates in
1414          the vertical; one may want to reorder the scheme in order operate in
1415          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1416          fields)
1417    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1418      - all verification tests compile and run with linux_ia32_g77
1419      - defaults are compatible with current input files--nothing
1420        should change if you were not previously using MNC
1421      - MNC output has been added in numerous places (eg. timeave)
1422        but there are still a few writes not yet do-able with MNC
1423        (this is in progress)
1424      - flags now allow for either/or/both use of MDSIO and MNC and
1425        documentation will soon follow
1426      - numerous small formatting cleanups for ProTeX
1427    o add version info (via BUILD_INFO.h) to MNC and stdout
1428    
1429    checkpoint54e_post
1430    o add two new packages
1431      - pp81 (Packanowski and Philander, 1981), Richardson number and
1432        stratification dependent mixing
1433      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1434      - these scheme operate in a similar manner as KPP (without ghat, of
1435        course), however there is only one diffusivity that is used for both
1436        temperature and salinity (and passive tracers)ç
1437    o add offline package
1438    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1439      provided by Stephanie Dutkiewicz
1440    o genmake2: add ability to search for C compilers and cleanup test output
1441      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1442    
1443    checkpoint54d_post
1444    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1445    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1446      leading to additional shift by 5 days each year of integration
1447       (i.e. leading to considerable offset over the years)
1448    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1449    o start with no AB and no initial filtering (staggerTimeStep):
1450      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1451    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1452      (external loading & cpl import/export stay in forward_step.F)
1453    o update coupling interface to work with new staggerTimeStep
1454    o change MDSIO ptracers_pickup.
1455    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1456    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1457    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1458    
1459    checkpoint54c_post
1460    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1461      this affects (truncation error) output.txt of test-exp:
1462       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1463    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1464    o change Qnet to always be the net heat flux, (+upward).
1465      affects (truncation error) output of natl_box exp.: updated
1466    o define the max number of passive tracers in PTRACERS_SIZE.h
1467    o start to test mnc routinely in exp0
1468    o add sea-ice loading (sIceLoad) as a new forcing field.
1469    
1470    checkpoint54b_post
1471    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1472       impressive on Altix and Opteron systems)
1473    o diagnostics can now write NetCDF files through the mnc package
1474    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1475    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1476    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1477      affects (truncation error) output of lab_sea & natl_box exp.: updated
1478    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1479    
1480    checkpoint54a_post
1481    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1482    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1483    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1484    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1485      + internal_wave (shift in writing cg2d_ini_res)
1486    checkpoint54a_pre
1487    
1488    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1489      - modified verification/lab_sea and natl_box_adjoint accordingly
1490    
1491    checkpoint54
1492    checkpoint53g_post
1493    o prepare splitting of thermodynamics: store convect.counter in common block
1494    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1495      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1496    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1497    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1498    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1499    o restore adjointability
1500    
1501    checkpoint53f_post
1502    o modifications that affect AIM experiment results (update output.txt):
1503      - no advection of S at top interface Nr (pkg/generic_advdiff)
1504      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1505    o AIM pkg:
1506      - include stability function into surf.Flux derivative relative to Tsurf
1507      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1508    
1509    checkpoint53e_post
1510    o merged cylindrical coord configuration
1511    o added rotating_tank experiment
1512    checkpoint53e_pre
1513    
1514    checkpoint53d_post
1515    o faulks upgraded: re-generate output.txt that have changed:
1516       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1517    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1518    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1519    o added Sadourny discretization of Coriolis
1520      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1521      - re-enabled use of omega3 (useAbsVorticity)
1522    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1523      vector-invariant equations
1524      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1525    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1526      hopefully without new bugs
1527      - still to do: biharmonic friction for non-hydrostatic w
1528    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1529    o regenerated output for global_ocean_ebm (using -ieee)
1530    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1531      of mom_common/
1532      - simple re-arrangement of instructions within computing loop
1533    checkpoint53d_pre
1534    
1535    checkpoint53c_post
1536    o new version of coupler for AIM+thSIce and Ocean models
1537     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1538     - land: change Evaporation of snow
1539     - aim with thSIce: fix bug in snow-precip.
1540    o changes to calc_gw.F
1541     - bug fix for w^2 term near the bottom boundary
1542     - (hopefully) improve the lateral slip boundary condtions for use with
1543        partial/looped cells
1544      - because the bug fix changes two verification experiments anyway (exp5
1545        and plume on slope), change the lateral boundary condition from half slip
1546        to the value of no_slip_sides
1547    o ebm package wasnt quite up to the parallel task. Fixed that.
1548    o Adjoint of EBM package + verification
1549      * TLM OK
1550      * ADM not sufficient accuracy yet (needs further testing)
1551    
1552    checkpoint53b_post
1553    o Commiting new energy balance model to repository
1554      * package is pkg/ebm
1555      * verif. is verification/global_ocean_ebm
1556      * references are in ebm_driver.F
1557    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1558    C        Global thermohaline circulation. Part I:
1559    C        Sensitivity to atmospheric moisture transport.
1560    C        J. Climate 12(1), 71-82
1561    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1562    C        Global thermohaline circulation. Part II:
1563    C        Sensitivity with interactive transport.
1564    C        J. Climate 12(1), 83-91
1565    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1566    C        Destabilization of the thermohaline circulation
1567    C        by atmospheric eddy transports.
1568    C        J. Climate 7(12), 1870-1882
1569    o Will need long integration testing.
1570    checkpoint53b_pre
1571    
1572    o created pkg/mom_common in preparation for variable viscosity code
1573    o renamed and split ini_mnc_io
1574    o pkg/land: only liquid water can diffuse or run-off
1575    o AIM using land: soil wetness availability account for snow
1576    o added printMapIncludesZeros to EEPARMS namelist
1577    
1578    checkpoint53a_post
1579    o restore TAMC compatiility for exf_constants.h
1580      (no usage of _d in .h)
1581    o Additional storing in KPP in an attempt to fix
1582      TAMC problem with adjoint of KPP code.
1583      (no success...)
1584      Identical code works fine with TAF.
1585    o Fixed verification/natl_box_adjoint experiments.
1586      Initial conditions for Experiments 4 and 5 are now
1587      set to "SEAICE_initialHEFF=0", which is more reasonable,
1588      and hence gives results closer to that of Experiment 2.
1589      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1590    
1591    checkpoint53
1592    o stable checkpoint with up to date adjoint
1593      TLM tests only run for 1st grdchk at the moment. Its unclear if
1594      this is a code problem or a problem with resetting code for g_
1595      variables that is being autogenerated wrong.
1596      Otherwise:
1597       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1598       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1599         are both still in chaos following their security messes.
1600    
1601    checkpoint52n_post
1602    o various build (mostly genmake2) changes including:
1603      - ability to build/run more easily within Cygwin and MacOS X
1604      - more complicated Makefiles with a stronger dependence on Gnu Make
1605    o pkg/seaice modifications
1606      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1607        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1608        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1609      - changed proxy for geostrophic velocity and updated
1610        verification/lab_sea/results/* accordingly
1611      - removed ADI dynamic solver from pkg/seaice
1612      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1613        they caused a segmentation fault under certain circumstances
1614      - removed unused field WATR
1615    o bug fix in exf-package:
1616      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1617         now reflect that.
1618    o small fixes in the cal-package:
1619      - set reference date to first of January for the 'model'-calendar
1620      - failing of cal_CheckDate in cal_FullDate now actually results in a
1621        warning
1622    o small modifications in exf-package to increase flexibility:
1623      - change climtempfreeze from a constant to a runtime parameter that
1624        is specified in data.exf_clim (default = -1.9)
1625      - introduce runtime parameter windstressmax (default = 2.0) that is
1626        specified in data.exf
1627    o fix in pkg/thsice:
1628      - update Evap (Tsf changes) to be consistent with Latent heat flux
1629      - maintain snow precipitation unchanged (even if Tsf >=0).
1630     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1631    
1632    checkpoint52m_post
1633    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1634      this does not change any of the results, because myIter=0 in swfrac always
1635      lead to jwtype=2 (the default anyway), but the call makes little sense
1636      as a default
1637    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1638    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1639      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1640    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1641    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1642    o extending useSingleCpuIO option to work with new exch2 I/O format
1643      - old-style, missing-tile I/O is still accessible by defining CPP
1644        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1645    o monitor package can write to NetCDF files and/or STDOUT
1646    o fix re-definition bug in MNC_GRID_INIT_ALL()
1647    o doc/api_reference added
1648      - a framework for building an API Reference Manual using all
1649        the "protex" comments embedded in the code
1650      - see pkg/generic_advdiff, pkg/mnc for examples
1651    o MNC:
1652      - make myThid the last argument for all subroutines
1653      - new default for the grid files: NO halos
1654      - add useMNC and other run-time flags
1655      - separate per-file-group handling of the unlimited dimension
1656      - early initialization of MNC w/ flags read at the eeboot stage
1657        and lookup tables set in initialize_fixed
1658      - write all MNC output to a freshly-created directory
1659    o thermodynamics sea-ice (thsice) is now tested with testreport.
1660    o test exp. advect_cs: use the standard cs32 grid ; update output.
1661    o Added functionality to grdchk:
1662      pick global i,j,k position (or nearest wet) where to perform check.
1663    
1664    checkpoint52l_post
1665    o new land formulation:
1666      a) use ground enthalpy as prognostic variable to ensure exact
1667         energy conservation.
1668      b) account for water temperature and for latent heat of freezing
1669         in all processes (rain, run-off, ground storage)
1670      c) compute surface and ground temperature implicitly.
1671    o aim_v23 modification for new land model:
1672      a) Treat separately land / ocean / sea-ice surface fluxes
1673         to allow implicit computation of land & sea-ice surface temp.
1674      b) add snow precipitation.
1675    checkpoint52l_pre
1676    
1677    o fix problem (when 1 tile is empty) in min/max monitor.
1678    o fix bug in timeAve (u,vZetatave in common block)
1679    o no restoring terms under ice for pkg/seaice
1680    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1681    o bug fix for pkg/seaice pickups
1682    o change MNC call locations and add coordinate attributes
1683    o mask vorticity at the corner ; affects global_ocean.cs output
1684    o fix ini_curvilinear_grid ; test CS experiments with mpi
1685    o aim.5l_cs: modify sea-ice fraction input file ; update output
1686    o exf: Adding simple range check routine for exf fields after read
1687    
1688    checkpoint52k_post
1689    o removed top-level directory "diags"
1690      - we migrated these functions to pkg/timeave a long time ago
1691    o fixed bug introduced in pkg/monitor
1692    o accuracy ctrlprec = 32 insuffient for gradient checks using
1693      averaged fields (I/O via cost_averages)
1694      -> use ctrl.h in active_file*.F to control I/O precision.
1695    o paramter list of CALL ADTHE_MAIN_LOOP
1696    o added initial do_the_model_io to ecco
1697    o set all ...Freq to zero after cost_final
1698      taveFreq, dumpFreq, pChkptFreq
1699    o MAIN and ECCO differentiability restored
1700    
1701    checkpoint52j_post
1702    o fix nchklev in tamc.h for global_ocean...
1703    o Bringing flow and store directives up-to-date
1704    o Really weird thing!
1705      call do_the_model_io from the_main_loop with parameters
1706      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1707      TAF places a faulty re-call of initialise_varia
1708      after cost_final call which should not be there!
1709    checkpoint52j_pre
1710    
1711    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1712      error messages
1713    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1714    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1715      debug output
1716    o modfied mdsio_writefield.F to handle non-global files under exch2
1717    o update AIM Cubed-Sphere exp (aim.5l_cs):
1718      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1719    o update AIM Equatorial Channel exp:
1720      use standard aim_v23 pkg and change the SST fields to be more realistic.
1721    o globalFile now works with exch2
1722    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1723      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1724    o limit timeave output for hi-res integrations
1725    
1726    checkpoint52i_post
1727    o removed CPP_EEOPTIONS.h from verification/*/code
1728    o updated the tiling for global_ocean_pressure
1729    checkpoint52i_pre
1730    
1731    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1732      the old pkg/aim).
1733    
1734    checkpoint52h_pre
1735    o shortened offending lines in exch2_send_rx?.template
1736    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1737    o genmake2: add build & execute test for NetCDF code
1738    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1739      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1740    o added useSingleCPUIO flag to monitor.F and mon_out.F
1741    o added temporary hack for sea-ice dynamics on the cube:
1742      metric terms are ignored and it is assumed that
1743      there is no sea-ice on cube faces 1, 2, 4, and 5.
1744    
1745    checkpoint52f_post
1746    o added exch2 cube routines to pkg/exch2
1747    o modified hs94.cs-32x32x5 to use it
1748    o added new grid files to hs94.cs-32x32x5
1749    checkpoint52f_pre
1750    
1751    checkpoint52e_post
1752    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1753      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1754    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1755      to work with implicit vertical advection and AB ;
1756    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1757    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1758     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1759    checkpoint52e_pre
1760    
1761    o fix bug in impldiff when Nr=1 or Nr=2.
1762    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1763    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1764    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1765      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1766    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1767    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1768    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1769    
1770    checkpoint52d_post
1771    o re-tiled many expts to allow comparison in multi-processor mode
1772      - updated output accordingly
1773      - changed hs94.128x64x5 to use intial T from file rather than use the
1774        random number generator
1775    o add infrastructure in model routines for fizhi and gridalt packages
1776    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1777    o changes to permit hi-res, cubed-sphere, configuration
1778      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1779      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1780      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1781        of surface winds for the cube
1782      (A verification experiment, based on global_ocean.cs32x15, but with
1783       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1784       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1785       complete with example surface forcing files and matlab scripts to look
1786       at the output and compare it with that of global_ocean.cs32x15.)
1787    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1788       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1789       to conform to the common rule.
1790    o check-in the first version of the coupler + interfaces for multi-components
1791       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1792       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1793       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1794       - ocean and atmos. share the same horizontal grid (no interpolation).
1795       - exchanges between component and coupler is done in forward_step
1796    o new verification experiment, cpl_aim+ocn:
1797       coupled ocean - AIM atmosphere on cs32 grid.
1798    
1799    checkpoint52d_pre
1800    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1801    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1802    
1803    checkpoint52c_post
1804    o Fixing OPTIONS files for use of exf:
1805      - ALLOW_ECCO not needed
1806      - ECCO_CPPOPTIONS.h should not be included from
1807        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1808        as has been the case in the past
1809      - All cal/exf related options are currently set in
1810        single header file. Should remain so until we
1811        agree on a consistent new policy.
1812    o Removed all CPP options for cal package.
1813      cal has no more CPP options.
1814    o modified STOREs in GAD_ADVECTION
1815    o corrected key comp. for passkey
1816    
1817    checkpoint52b_post
1818    o new version: "thsice" of thermodynamic sea-ice pkg:
1819     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1820     - modify fluxes but do not change theta directly;
1821     - light cleaning of bulk_force pkg (still needed with thsice).
1822     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1823       + output_thsice.txt to test thsice & bulk_force pkgs.
1824    o put back grid & coriolis monitor output.
1825    checkpoint52b_pre
1826    
1827    o call "do_the_model_io" at the beginning (=> dump initial state)
1828    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1829    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1830      (need info on NUMBER_OF_PTRACERS)
1831    o missing PTRACERS headers in some routines
1832    o default tamc.h in pkg/autodiff supposed to crash
1833      to ensure proper customization
1834    
1835    checkpoint52a_post
1836    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1837      - moved surfaceTendencyTice from pkg/seaice to main code
1838      - subroutine FREEZE_SURFACE now limits only surface temperature
1839        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1840        => new output.txt for global_ocean.cs32x15 & global_with_exf
1841      - keep the old version of FREEZE for backward compatibility;
1842        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1843      - corresponding modifs for TAF directives
1844    o added surface flux output variables to TIMEAVE_STATVARS
1845    o time-averaged output for pkg/ptracers
1846    o fix problem with ECCO-related divided adjoint
1847      snapshot file was missing some ad-variables,
1848      but no warning issued by TAF
1849    
1850    checkpoint52a_pre
1851    o some bug fixes for #undef REAL4_IS_SLOW
1852    
1853    checkpoint52 = ecco_c52_e35
1854    o after testing adjoints of checkpoint51u_post
1855    
1856    checkpoint51u_post
1857    o this is the post-merge tag of the ecco-branch
1858      (needs another clean checkout and re-testing)
1859    o various natl_box_adjoint configs and results
1860      but no input fields
1861    o obcs adjoint not yet merged!
1862    o adding ECCO global 1x1 and 2x2 degree configs
1863    o updated/extended some store directives for seaice
1864    o pkg/ecco now containes ecco-specific part of cost function
1865    o top level routines the_main_loop, forward_step
1866      supersede those in model/src/
1867      previous input data.cost now in data.ecco
1868      (new namelist ecco_cost_nml)
1869    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1870    
1871    checkpoint51t_post
1872    o this is the pre-merge tag of the ecco-branch
1873    
1874    checkpoint51s_post
1875    o cleanup: removed various obsolete #define-s
1876    o pkg/grdchk
1877      - renamed 'ph-grd 3' to 'grad-res'
1878      - merged from ecco-branch
1879        (remaining bug fixes for obcs gradient checks)
1880      - additional high-precision output for testreport
1881        (grep for 'precision_grdchk_result')
1882    
1883    checkpoint51r_post
1884    o cleaned up or removed CPP_OPTIONS.h files
1885    o updated results for some of the tests to reflect the new
1886      optfiles (-ieee: -O0 instead of -O3)
1887    
1888    checkpoint51q_post
1889    o cd_code:
1890      - moved cd_scheme.F -> cd_code_scheme.F
1891      - separate read_checkpoint from cd_code_ini_vars.F
1892      - separated cd_code part from write_checkpoint
1893      - updated AD_SOURCE, generated .flow
1894      - added CD_CODE_VARS.h to the_main_loop
1895      - Moving cd_code specific store dir.s to pkg/cd_code
1896    o ctrl package totally restructured
1897      - pack/unpack now optional and decoupled from
1898        xx_/adxx_ I/O
1899      - ctrl_pack/unpack cleaned
1900        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1901      - confined inclusion of AD_CONFIG.h to where necessary.
1902    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1903    
1904    checkpoint51p_post
1905    o create initial cd_code package
1906      - WARNING: the initialization of fields within packages
1907        is broken because INI_FIELDS (where READ_CHECKPOINT is
1908        called) is called *before* PACKAGES_INIT_VARIABLES.
1909        This seems to be backwards since
1910        1) its important to initially zero the entire field including
1911           the "halo" region
1912        2) zeroing needs to be done *before* reading pickup info
1913           and the pickup call might or might not happen in any
1914           particular run
1915      - this needs an overhaul for R2
1916    o cleanup verification/*/code/GMREDI_OPTIONS.h
1917    o cleanup testreport
1918    
1919    checkpoint51o_post
1920    o bringing AD-related verif's up to date with genmake2
1921      - carbon/
1922      - global_ocean.90x40x15/
1923      - hs.94.1x64x5/
1924      - (front_relax/ )
1925    o (more) consistent directory structure for AD-related verif.'s
1926    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1927    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1928    o bug fix in find_alpha.F for MDJWF:
1929      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1930        change rho -> rho-rhoConst
1931      - replace call find_rho to find_rhonum
1932    o initialisation of rFlx extended to full array (required by TAF)
1933      and shifted to thermodynamics
1934    o removed PTRACERS.h in ptracers routine
1935    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1936    o Correcting initialisations for fVerU, fVerV.
1937    o helping TAF to recognize dependency on kUp for
1938      fVerU, fVerV
1939    o Replacing delZ by delR in pkg/ctrl/
1940    checkpoint51o_pre
1941    
1942    o undid all of cp51 pending some cleanups and discussion
1943    o added the [#include "AD_CONFIG.h"] statement to all files that need
1944       it for adjoint/tl #defines
1945     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1946     o removed tools/genmake since it no longer works
1947    
1948    checkpoint51n_post
1949    o modifications to make FREEZE flux visible to pkg/kpp
1950      - moved surfaceTendencyTice from pkg/seaice to main code
1951      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1952      - subroutine FREEZE now limits only surface temperature
1953        (this means new output.txt for global_ocean.90x40x15,
1954         global_ocean.cs32x15, and global_with_exf)
1955    o added surface flux output variables to TIMEAVE_STATVARS
1956    
1957    checkpoint51n_pre
1958    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1959    o added [#include "AD_CONFIG.h"] to all files that use the following
1960      defines:
1961      - ALLOW_ADJOINT_RUN
1962      - ALLOW_TANGENTLINEAR_RUN
1963      - ALLOW_ECCO_OPTIMIZATION
1964    
1965    checkpoint51m_post
1966    o incorporating changes to get TAMC/TAF working in genmake2
1967      - added new TAMC/TAF targets to the Makefile
1968      - various cleanups related to package handling
1969      - these changes should have no impact on the forward model
1970    
1971    checkpoint51l_post
1972    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1973     - faster algorithm for cal_addtime.F
1974     - higher precision arithmetic, where needed
1975     - pkg/exf *startdate variables changed from calendar date to
1976       model integration time
1977    
1978    checkpoint51l_pre
1979    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1980    o enable to apply restoring on S & T only in a latitude band.
1981    o update output (external_forcing_surf modif. change truncation errors)
1982       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1983    
1984    checkpoint51k_post
1985    o change default to: useNHMTerms=.FALSE.
1986     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1987       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1988     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1989        exp1, ideal_2D_oce
1990     - change data file of oceanic exp (leave the results unchanged for now)
1991       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1992    o set gravitySign automatically according to the vertical coordinate used
1993      (and change sign: back to "logical" value: +1 when R increases downward)
1994    o added an include barrier to the default CPP_OPTIONS.h and
1995      removed the #include "PACKAGES_CONFIG.h" from it
1996    o fix a bug in mom_fluxform (from chk51j_post)
1997    
1998    checkpoint51j_post
1999    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2000    o adjusted some flow directives (dynamics, thermodynamics)
2001    o added cubed-sphere case to test cost function
2002    o heckpoint_lev?_directives.h now include
2003      pkg-specific directives, whenever those are enabled.
2004    o Moving pkg-specific flow directives to corresponding pkg
2005      Moving pkg-specific differentiation list to corresponding pkg
2006      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2007      ---> conventions are
2008           - pkg_ad.flow
2009           - pkg_ad_diff.list
2010           - pkg_ad_check_lev?_dir.h
2011    
2012    checkpoint51i_post
2013    o merge of the branch-genmake2
2014      - knowingly breaks the older genmake
2015      - automatic generation of all ALLOW_${PKG_NAME} defines
2016      - new testreport supersedes older testscript
2017    o large number of package inclusion and header cleanups
2018    checkpoint51i_pre
2019    
2020    o new output for adjoin of global ocean vector invariant
2021    o fix for checkpoint of thermodynamic seaice and bulk_force
2022    o Steph gchem various cleanups
2023    
2024    checkpoint 51h_pre
2025    o fixed some single quotes
2026    o modify gchem pkg to be more versatile
2027    o modifications to clean up dic pkg
2028    o add pkg/cfc
2029    
2030    checkpoint51g_post
2031    o provide links for ARPACK and ADM*TLM
2032    o start removing verification/vero/
2033    o update AD-related stuff
2034      (in particular some IF-statements in model/src/ routines)
2035    o adding to verification/global_ocean.90x40x15/ adjoint of
2036      vector invariant setup
2037    
2038    checkpoint51f_post
2039    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2040    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2041      of tracer Green's fucntions for ocean inversion project.
2042    
2043    checkpoint51f_pre
2044    o Added on-the-fly spatial interpolation capability
2045        "USE_EXF_INTERPOLATION" to pkg/exf.
2046      - This is a temporary Cartesian-grid hack until
2047        the super-duper ESMF coupler becomes available.
2048      - See verification/global_with_exf/README for usage example.
2049      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2050        flags and modified pkg/seaice accordingly.
2051    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2052        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2053        non-local transport term.
2054    
2055    checkpoint51e_post
2056    o pkg/mom_vecinv:
2057      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2058      - add time-ave diagnostic of vorticity advection.
2059    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2060    o atmospheric geopotential: - include water vapor effect;
2061                                - use p^kappa in p* scaling.
2062    o land pkg: read initial state from files.
2063    o AIM : add stratospheric drag in the upper level
2064    
2065    checkpoint51d_post
2066    o change function ILNBLNK (=> last non-blank char.) to return zero
2067      (instead of the string length) when the string. char is empty
2068    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2069    o modif's to restore TAMC compatibility
2070      - avoid "_d" constructs in PARAMETER declarations
2071      - avoid interrupting lines by comment lines
2072    o Use cluster local disks for purely local I/O
2073      vs. globally visible disks needed for ctrl stuff
2074      (merged from ecco-branch)
2075      - new active_file_loc... and mdsio_..._loc routines
2076      - affected packages: autodiff, ctrl, grdchk, mdsio
2077    
2078    checkpoint51c_post
2079    o introducing integer flag debugLevel
2080      - debLevZero: suppress all output
2081      - debLevA: standard
2082      - debLevB: equivalent to current debugMode=.TRUE.
2083    o introducing pathname variable mdsioLocalDir for mdsio
2084      that can be specified at runtime
2085      (relevant for cluster I/O to local disk)
2086    `
2087    >>>checkpoint51b_post
2088    adjoint of ptracers
2089    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2090    o extended state in checkpoint_lev?, etc.
2091    o alternative ctrl/cost with tr1 or ptracer
2092    o new comlev1_bibj_ptracers
2093    o new ptracers.flow
2094    o made ptracers_forcing same as external_forcing_s
2095    o added verification for adjoint with ptracers
2096      - adm. grdchk fail so far
2097      - tlm. grdchk OK
2098      - checked tapelev/comlev recomputations: OK
2099    <<<checkpoint51b_pre
2100    
2101    checkpoint51a_post
2102    o added code for biogeochemistry package
2103      - new pkgs: dic, gchem
2104      - new subroutine in ptracers
2105    o modify code for biogeo packages
2106      - in model/src and pkg/ptracers
2107    
2108    checkpoint51
2109    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2110      - autodiff, ctrl, exf, grdchk, seaice
2111      kept separate packages
2112      - cost, ecco, obcs
2113    o updating verification/internal_wave, verification/lab_sea
2114      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2115    
2116    checkpoint50i_post
2117    o Preparing next differentiable checkpoint and sync
2118      of MAIN vs. ecco-branch
2119      - 1st step: this one is differentiable
2120      - 2nd step: next(! not this) checkpoint will have updated packages
2121                  from ecco-branch)
2122    
2123    checkpoint50h_post
2124    o new package "land": provide surface BC for AIM.
2125    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2126    o AIM: use true log-P extrapolation for near surface temp (= as in
2127        F.Molteni paper) ; update aim.5l_cs output.
2128    o New variable in PARM03 for more flexible pickups
2129    o somewhat cleaned package initialisation sequence for
2130      ctrl/ cost/ ecco/ in packages_... routines
2131    
2132    checkpoint50g_post
2133    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2134      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2135      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2136        made the default because of faster convergence than ADI
2137    
2138    checkpoint50f_post
2139    o exf totally restructured
2140      - replaced all exf_set_ routines by one generic exf_set_gen.F
2141        and made sure it's still differentiable
2142      - split exf_getffields.F into new exf_bulkformulae.F
2143      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2144      - updated adjoint/makefile and relevant verif. accordingly
2145    
2146    checkpoint50f_pre
2147     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2148          + change Evap over land. (update aim.5l_cs output)
2149     o added missing .cvsignores and made uniform across expts
2150     o changed configuration of tidal_basin_2d expt
2151     o added pkg/debug functions for tracing code in fatal crashes
2152     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2153     o new fn in pkg/monitor to stop model if solution grows too big
2154     o removed lots of single quotes from comments
2155    
2156    checkpoint50e_post
2157    o make KPP work with PTRACERS
2158     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2159       nearly a copy of kpp_transport_s
2160     - there is no analogue to SurfaceTendencyS, so I have to use
2161       gPtr(of the surface layer) instead
2162    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2163    checkpoint50e_pre
2164    
2165    checkpoint50d_post
2166    o change kpp output from multiple-record state files to single-record state
2167      files analogous to write_state.F
2168    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2169      analogous to the cg2d-related output.
2170    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2171      so that writing to internal file fn (with length 512) fails.
2172    checkpoint50d_pre
2173    
2174    checkpoint50c_post
2175    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2176    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2177    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2178    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2179    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2180    
2181    checkpoint50c_pre
2182    Merging from release1_p13:
2183    o bug fix for pkg/seaice dynamic solver
2184    o Added SEAICE_initialHEFF to pkg/seaice
2185    
2186    checkpoint50b_post
2187    o store u*,v* in gU,V instead of in guNm1,gvNm1
2188    o in order to put the momForcing out of the Adams-Bashforth:
2189      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2190      to timestep.F
2191    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2192    o re-generate output for highly sensitive test-exp:
2193       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2194    
2195    checkpoint50b_pre
2196    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2197    o corrected CPP option mismatch in exf_Bulk... functions for case
2198      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2199    
2200    checkpoint50a_post
2201    o Bug fix for merging between c50 and KPP.
2202      ikey was passed from thermodynamics to kpp_calc via
2203      common block rather than being recomputed in kpp_calc,
2204      in contradiction with new key itdkey.
2205      New key ikppkey created, and tamc.h headers updated.
2206    
2207    checkpoint50
2208    - 2nd step of merge with ecco-branch:
2209      merge changes in ecco-branch back into main trunk
2210    - bug fix in find_alpha
2211    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2212    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2213    - merged some sliced AD support routines
2214    
2215    checkpoint49
2216    merged from ecco-branch:
2217    o exf:
2218      - Enable initialisation of forcing fields to constant
2219        (runtime) values.
2220      - in exf_getffields.F
2221        Reduce i-/j-loop to interior domain, discarding overlaps.
2222        That also fixes wrong TAF-key computations for key_1, key_2
2223        with bulf formulae.
2224      - exf_init.F modify #ifdef for exf_init_evap
2225      - exf_getffieldrec.F, ctrl_getrec.F
2226        The following INT-usages are not safe:
2227          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2228          fldcount = int(fldsecs/fldperiod) + 1
2229        and were modified.
2230    o autodiff: checkpoint_lev...
2231      - updated storing for bulk formulae (some arrays were missing)
2232      - added state for seaice package
2233      - synchronized with main branch
2234    o DIVA:
2235      Modif.s in
2236      - the_main_loop.F
2237      - the_model_main.F
2238      and added cost_final_restore.F cost_final_store.F
2239      o With these changes, it is possible to fully separate
2240        the first forward run to compute the cost function (mdthe_main_loop)
2241        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2242        into separate model executions.
2243        This enables better tuning of DIVA to given queue sizes.
2244      o Loss of cost function value in consecutive DIVA runs is
2245        fixed by storing to 'costfinal' file.
2246      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2247        beginning/end of adjoint integration is accounted for.
2248      The current changes apply to TAF-1.4.26.
2249      TAF has one remaining bug, requiring one manual change
2250      (see MITgcm manual).
2251    o cal: synchronized between MAIN and ecco-branch
2252    
2253    checkpoint48i_post
2254    o Changes to restore differentiability of code w.r.t. previous tag
2255      (mostly adding new routines to make list and replacing
2256      pressure by totPhiHyd).
2257    o Updated and merged grdchk package
2258      - has both ADM and TLM checks
2259      - works for single- and multi-proc.
2260      - output cleaned
2261      - worked successfully for parallel DIVA
2262    o genmake:
2263      - Adding -platform=SP4
2264      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2265    o Modif. for DIVA:
2266      ctrl_unpack should not be called in intermediate DIVA interval.
2267      (similar thing would apply for active files such as
2268      tbar, sbar, psbar, which should not be reinitialised;
2269      only relevant for ecco-branch)
2270    
2271    checkpoint48h_post
2272  o improve "ini_p_ground" when using finite difference form for calc_phi_hyd  o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2273  o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F  o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2274  o Added SEAICE_initialHEFF to pkg/seaice  o Added SEAICE_initialHEFF to pkg/seaice
2275    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2276    
2277  checkpoint48g_post  checkpoint48g_post
2278  --- EOS:  --- EOS:

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