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revision 1.109 by jmc, Tue Dec 10 04:28:01 2002 UTC revision 1.794 by mlosch, Thu Apr 19 15:49:24 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/kpp: add code to have mixing in shelf ice caverns
8    
9    checkpoint59
10    o pkg/exf:
11      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
12        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
13      - move exf header files from lower_case.h to UPPER_CASE.h ;
14        add missing cvs Header & Name
15      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
16      - add namelist param. selectStressGridPosition, exf_monFreq
17      - retire many _CLIM routines, and remove data.exf_clim
18        + params moved to data.exf
19        + climsst, climsss now handled by exf_set_gen, i.e.
20          climss?period=0 refers to constant field,
21          climss?period=-12 to monthly forcing
22      - split up namelists in data.exf
23    o pkg/seaice:
24      - remove seaice_exch and seaice_exch_uv
25      - remove superfluous exchange of theta
26      - add myThid to seaice_budget_ocean/ice
27      - add new interface for atmospheric wind forcing (C-grid only)
28        + new routine
29        + two new field (taux, tauy for stress over ice)
30        + removed one global field (DAIRN) for C-grid case only
31    o pkg/thsise
32      - 2nd set of modifs for thsice adjoint in conjunction with exf
33    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
34    
35    checkpoint58y_post
36    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
37      vertical diffusivity, similar to that in MOM4; turned on using
38      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
39      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
40    o Added capability for 3D specification of background vertical diffusion
41      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
42      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
43      "data" file that contains the 3D vertical diffusivity coefficients.
44    o ice dynamics (pkg/seaice) with thsice thermodynamics:
45      - add code within pkg thsice to advect & diffuse sea-ice fields
46      similar to (and will replace) what has been added in  seaice_advdiff.F,
47      but: - conserving Mass, Heat & Salt.
48           - better when using non-linear advection scheme (not yet fully tested)
49           - can also be used in atmospheric set-up (for now, only the diffusion).
50    
51    checkpoint58x_post
52    o IO option for global-file compact format:
53      - add options when generating topology (utils/exch2/matlab-topology-generator)
54      - add I/O capability (pkg/mdsio).
55      - adapt utils/matlab/rdmds.m to read this format.
56      for now long-line format not yet supported by pkg/mdsio (& exch2).
57    o shelfice: add a few diagnostics
58    
59    checkpoint58w_post
60    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
61      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
62      (and replace horiVertRatio in NH code).
63      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
64                         and tutorial_plume_on_slope (sensitive to truncation)
65    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
66      directly to drive seaice model (C-grid only)
67    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
68     - reintroduce computation of wind from stress,
69     - compute tau (in exf_bulkformulae.F) from windstress averaged to
70       mass points to avoid tau = 0
71     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
72    o rdmnc.m: make it work with "global" files created with gluemnc
73    o rdmnc.m : some improvements in dealing with singleton dimension
74      (tested on all testreport mnc output files).
75    o genmake2: disable pkg/profiles if netcdf test fails.
76    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
77    o move call to cal_readparms up to make calendar parameters/variable available
78      to all packages
79    
80    checkpoint58v_post
81    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
82      useDynP_inEos_Zc tested.
83    o pkg/exf: changes to properly interpolate/mask/scale initial fields
84    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
85      and portions thereof.  See read_cs.txt for description and examples.
86    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
87      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
88      following the great-circle arc between those 2 points.
89    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
90      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
91    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
92     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
93     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
94     - still needs work (not working with some options ; efficiency to improve)
95       and serious testing.
96     - use this scheme for temperature & salinity in 2 advection test exp.:
97       advect_xy & advect_xz, respectively.
98    
99    checkpoint58u_post
100    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
101    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
102    o testreport: add option "-skipdir" to skip some test.
103    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
104      momentum calculation.
105    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
106    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
107      remove checkpoint.F and the_correction_step.F (no longer used);
108      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
109    o add option (linFSConserveTr) to correct for tracer source/sink due to
110      Linear Free surface
111    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
112    o pkg/thsice: fix reading mnc-pickups
113    
114    checkpoint58t_post
115    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
116    o pkg/mdsio:
117     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
118       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
119       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
120     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
121     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
122       either MDS_READ_FIELD or MDS_WRITE_FIELD )
123     - new S/R (to replace MDSWRITEMETA), which allows to write more
124       informations (variable names, time ...) to meta files.
125     - modify rdmds.m to give back the meta file content.
126    o pkg/diagnostics: change vertical interpolation to be safer, and more
127       flexible (define p-levels to interpolate to in data.diagnostics);
128      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
129       diagnostic pointer.
130    o pkg/seaice: more cleaning up of seaice_growth, added many comments
131    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
132    o fix multi-category seaice:
133     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
134       SEAICE_MULTICATEGORY
135     - fix short wave heat flux
136    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
137       and allow to use EVP solver. Change forward lab_sea: test both EVP
138       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
139    o Initial check-in of lab_sea adjoint
140      (very similar to natl_box_adjoint/code_seaice)
141      * used C-grid and EVP solver
142      * used KPP, GM/Redi
143      * uses inAdExact=.TRUE.
144      * gradient checks fail for both ADM and TLM
145        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
146        f.d. gradients actually seem more problematic than ADM, TLM gradients;
147        issue is related to forward mismatch between g77 an ifort
148    o pkg/seaice: overhaul of thermodynamics
149     - growth.F and groatb.F are replaced by new routine seaice_growth.F
150     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
151     - move a few global fields out of SEAICE.h into seaice_growth.F and
152       make them 2D (FICE/QNETO/ ...)
153     - remove FO (it is the same as QNETO)
154     - introduce a few local fields to avoid modifying external fields such
155       as atemp, etc.
156    
157    checkpoint58s_post
158    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
159      changed exf_set_gen.F so that
160        genperiod=0 means input file is one time-constant field and
161        genperiod=-12 means input file contains 12 monthly means
162    o CG2D: use pre-computed solver main-diagonal (stored in common block);
163      this affects truncation error ; generate new output file for exp. which
164      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
165        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
166        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
167        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
168        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
169        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
170    o start implementation of deep-atmosphere and anelastic formulation
171    o verification: remove 2nd copy of input files and use script "prepare_run"
172      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
173    o mom_common/vecinv/fluxform: fix a few initialisation isssues
174    o profiles: fix for multithreaded case
175    
176    o diagnostics: rename few diags:
177      s/'PRESSURE'/'RCENTER '/g
178      s/'TICE    '/'oceFreez'/g
179      s/'TAUX    '/'oceTAUX '/g
180      s/'TAUY    '/'oceTAUY '/g
181      s/'SWFLUX  '/'oceQsw  '/g
182      s/DIFx/DFxE/g
183      s/DIFy/DFyE/g
184      and add few ocean-forcing diagnostics:
185      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
186    o modifications to pkg/seaice/growth.F and budget.F, which change results of
187      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
188      as actual snow thickness.  It now refers everywhere to effective snow
189      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
190    
191    checkpoint58r_post
192    o modifications to pkg/seaice/growth.F, which change results of
193      lab_sea experiment: fixes pertain to melting snow over open water, to
194      masking EVAP under sea ice, and to using the correct AREA variable for
195      computations of EVAP, PRECIP, HSNOW, and GHEFF
196    o add ability to read bathy, salt, and theta using MNC (off by def)
197    o add flooding algorithm and advection of HSNOW for pkg/seaice;
198      both are turned off by default and do no change any results
199    o seaice advection with pkg/thsice: a step toward the use of non-linear
200      advection scheme, but #ifdef or commented out for now (requires more EXCH).
201    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
202      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
203      in natl_box (affects results @ truncation level: update output.txt)
204    o multi-threading and IO:
205      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
206      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
207        (needed to work with SingleCpuIO): tested in all verif. exp.
208    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
209      affects the results (but none of the verification test uses this scheme).
210    o Adding some pkg/diagnostics capability to pkg/seaice
211      (will certainly be subject to changes)
212    o ctrl: adding new control variables:
213      lwflux, lwdown, evap, snowprecip, apressure, runoff
214    
215    checkpoint58q_post
216    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
217      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
218      high_res_cube configuration by 4% on Columbia.
219    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
220      add (in global_with_exf/code) a version of EXF_INTERP_READ without
221      dynamical allocation (seems to work in multi-threaded).
222    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
223      single CPU io) so that TAF does not have to see EESUPPORT.h
224    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
225    
226    checkpoint58p_post
227    o obcs: stop if obcs is used with useCDscheme = .true.
228    o shelfice:
229     - fix a sign error so that no slip at shelfice interface works
230     - remove stop for combination non-hydrostatic code and shelfice. That does
231       not mean, that the results are correct, but at least they are numerically
232       stable
233    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
234    o added adjoint exch routined for all exch*3d* routines
235      and updated flow directives
236    
237    checkpoint58o_post
238    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
239      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
240    o change controling S/R for writing pickup file (new S/R do_write_pickup)
241      and clean-up reading/writing of pickup files.
242    o fix local version of read/write pickup (NH part) in rotating_tank/code
243    o simplify EXCH interface:
244     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
245     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
246    o added the regrid package
247    o shelfice:
248     - add a simple boundary layer scheme to reduce noise
249     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
250    
251    checkpoint58n_post
252    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
253       local variable (not in common block).
254    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
255      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
256      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
257        to work with SingleCpuIO.
258    o add "_d 0" to real constant of pkg/cfc subroutines ;
259       update exp. cfc_exemple & tutorial_cfc_offline output files.
260    o multi-threading and IO:
261      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
262        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
263      - barrier before and after reading.
264      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
265      - avoid using MDS_WRITELOCAL for LAND pkg output.
266      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
267        common-block variables ; Allows multi-threading with master-thread IO.
268    o change default MAX_NO_THREADS from 32 to 4 ;
269      and stop cleanly when MAX_NO_THREADS is too small.
270    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
271    
272    checkpoint58m_post
273    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
274       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
275    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
276       keep global_ocean.90x40x15 (for AD testing) with former secondary test
277       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
278    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
279        add MITgcm_tutorials (= code + all the tutorials)
280    o ecco, option to compute cost for total ssh (mean+anom)
281    o consistent with addition of ptracer and ssh in pkg/profiles
282    o profiles: adding ptracer and ssh
283    o testreport: change multi-test output-file name
284      (from output.txt.{name} to output.{name}.txt)
285    o profiles: now ok for mutli-tiles case
286    o seaice: add 4 parameters for different advection schemes for area,
287      (effective) seaice thickness, enthalphy, and snow height. Their default
288      is the standard parameter SEAICEadvScheme
289    o calc_gw:
290     - add cosFacU in zonal viscous flux (harmonic.visc.).
291     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
292       of tutorial_plume_on_slope.
293    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
294    o calc_gw: true flux-form, account for horizontal grid spacing.
295      update rotating_tank results, but not plume_on_slope (affected at
296      truncation level, 11 digits).
297    
298    checkpoint58l_post
299    o calc_gw:
300     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
301     - remove side-drag for now (need to fix it); update plume_on_slope results.
302     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
303    o commit code to make SST/SSS weights spatially variable
304      (based on either variable in-situ or variable initial T/S weights)
305    o pkg/ecco:
306      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
307        now based on horizontally varying weights wthetaLev, wsaltLev
308      * cost_averagesflags now returns year indices in addition to day, month
309      * sflux balance is performed on annual basis
310        (sflxumm, sfluxmm2, bal_sfluxmm)
311      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
312        including separate counting and multipliers
313    o pkg/rbcs
314      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
315    
316    checkpoint58k_post
317    o testreport:
318     - always build in dir. "build" (if not there, mkdir build instead of building
319       & running in input)
320     - run in dir run (if it exists), in build otherwise.
321     - call prepare_run (if input/prepare_run exists)
322     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
323    o pkg/exf modifications to interpolation and rotation routines for more
324       reasonable treatment of North Pole singularity: for tracers North Pole
325       value is set to northernmost zonal-mean value, for zonal velocity it is
326       set to zero, and for meridional velocity it is set to northernmost value.
327    o pkg/exf/exf_check_range.F
328     - add tile index to diagnostics and move stop statement to the very
329       end of the routine.
330    o pkg/diagnostics: (diagnostics_main_init.F)
331      define title of isomorphic variables according to the current config.
332    o pkg/thsice with pkg/seaice dynamics:
333    - fix domain of computation (interior only, required for exf) and do exchanges
334    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
335    o towards a standard way of dealing with multi-threading in MONITOR
336      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
337    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
338       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
339    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
340    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
341    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
342       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
343    o tracer advection:
344     - clean-up and simplify calc_common_factors.F
345     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
346       advection subroutine (but still not used within DST advection S/R)
347    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
348    
349    checkpoint58j_post
350    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
351      from file (collects calls previously in FORWARD_STEP)
352    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
353    o adjoint store dir. adjusted accordingly
354    o genmake2
355      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
356    
357    checkpoint58i_post
358    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
359      on wind stress (SEAICEstressFactor defaults to 1.)
360    o Total number of Timers is finite (<=40): comment out 2 non-essential one
361      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
362    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
363      on CS-grid: no longer loosing mass.
364    o exf & curvilinear-grid: no longer modify longitude xC & xG.
365    o pkg/ggl90: fix sloppy output and fix a bug
366    o pkg/seaice: added SEAICEuseEVPpickup parameter
367      - Set to false in order to start EVP solver with
368        non-EVP pickup files when using SEAICEuseEVP
369      - fix sign error in diffusion in seaice_calc_rhs
370    
371    checkpoint58h_post
372    * Modifications for bottom topography control
373      o replace hFacC by _hFacC at various places
374      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
375      o add non-self-adjoint cg2d_nsa
376      o update autodiff support routines
377      o re-initialise hfac after ctrl_depth_ini
378      o works for 5x5 box, doesnt work for global_ocean.90x40x15
379    * Adding verification for 5x5 box (4-layer) bottom topography control
380    
381    checkpoint58g_post
382    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
383       used for mean seasonal cycle, mean diurnal cycle); add an example
384       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
385    o pkg/ggl90:
386      - add parameter (minimum surface kinetic energy)
387      - fix bug (avoiding division by zero)
388    o couple pkg/thsice to pkg/seaice:
389      - modify advection in seaice to accomodate new scalar fields to be advected
390      - only muliDimAdection scheme work with seaice/thsice
391      - mapping of thsice-variables to seaice-variables, back and forth
392      - does not break the verification experiments, but does not give the
393        desired results either
394    o pkg/seaice
395      - make (default) second order advection a bit less confusing?
396    
397    checkpoint58f_post
398    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
399      to pkg/seaice):
400      - new routines thsice_map_exf and thsice_get_exf provide the interface
401      - add an additional formal parameter to thsice_solve4temp
402    o pkg/exf:
403      - add new fields wspeed, snowprecip (to be able to couple to thsice)
404      - correct Stefan-Boltzmann constant
405      - new parameter for longwave surface emittance
406      - separate some stuff from exf_bulkformulae into new routines  
407        exf_radiation, exf_wind
408      - add new parameters and constants: longwave emissivity for ocean, ice
409        and snow, evaporation parameters over ice
410      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
411        either wind from stress or stress from wind
412    o pkg/thSIce:
413    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
414    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
415       and THSICE_CALC_THICKN
416    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
417    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
418      to make debugging easier.
419    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
420    o pkg/bulk_force:
421      - clean-up comments and parameters ;
422      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
423    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
424      generate new output for test-experiment: aim.5l_cs.thSI
425    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
426      testreport accordingly
427    
428    checkpoint58e_post
429    o SEAICE_CGRID adjoint done
430    o R_STAR adjoint implemented.
431      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
432      * need to sort out init. of h0facc, etc.
433    o Make pkg/profile fully independent of ecco,cost, etc. stuff
434      to be able to use it in pure forward.
435    
436    checkpoint58d_post
437    o upgrade simple test-experiment to tutorial example:
438     step.1: duplicate the experiment and (step.2) will remove the old copy.
439      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
440      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
441      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
442      tutorial_global_oce_biogeo    <- copy of dic_example
443      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
444      tutorial_plume_on_slope       <- copy of plume_on_slope
445      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
446      tutorial_global_oce_optim     <- empty for now (David ?)
447      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
448     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
449    o correct a sign problem in cost_scat.F
450    o obcs and ptracers: fix boundary conditions for advections schemes
451      with larger stencil
452    o thsice adjoint: start
453    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
454      completeness
455    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
456      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
457    o ptracers adjoint:
458      * avoid extensive recomputatations
459      * fix missing re-init. of gptr (missed by TAF)
460    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
461      me to turn off the excessive output to STDOUT that this package produces
462    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
463      and add those terms in Vector-Invariant formulation.
464    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
465      if the control period (xx_hfluxperiod etc) is 0
466    o in profiles pkg, clean routines and fix details
467    o in ecco pkg, reading ssh data:
468      fix problem in case the model does not start at iter0=0
469    o fix mnc-pickup/restart for ptracers
470    o new package prifiles:
471      code to compute profile-based cost by Gael Forget
472      (modifs in ecco, ctrl, autodiff)
473    o Benign bug fix in initialization (spotted by M. Mazloff) of
474      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
475    
476    checkpoint58c_post
477    o adjoint: finish NLFS adjoint and provide reference output in
478      verification/global_ocean.90x40x15/results_ad_nlfs
479    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
480      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
481      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
482      with SEAICE_CGRID defined.
483    o move calendarDumps from "data" to "data.cal" and clean-up the code
484      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
485    o add useEXF & useCAL flags (for now, set in hard-coded way)
486    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
487      (were missing in NH mode, and wrong in quasihydrostatic mode).
488      waiting for Chris updated version of calc_gw to add those CALLs.
489    o fix bug in quasihydrostatic S/R ;
490      add a test for this option: global_ocean.90x40x15.qshyd
491    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
492      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
493    o add on/off flag useOffLine for package OFFLINE
494    o seaice:
495      - modify advection so that it works also on the C-grid
496      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
497        problem in multi-tile runs with C-grid
498      - add flags for clipping ice velocities and/or masking solver forcing
499      - fix drag (ocean on ice) formulation and a bug that caused noise in the
500        C-grid solver
501      - added a few comments to seaice_diffusion.F
502      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
503        are now exclusive)
504      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
505        required re-ordering the code a little:
506       + make DAIRN global variable (defined in SEAICE)
507       + move computation of the viscosities eta and zeta into a new separate
508         routine (because I need to recompute them in seaice_ocean_stress.F)
509    
510    checkpoint58b_post
511    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
512      update output.txt of exp. aim.5l_cs.thSI
513    o various mnc cleanups and improvements:
514      + shrink lookup tables by factor of ~4
515      + better error reporting when running out of lookup space
516      + able to handle longer path/file names (up to 500 chars)
517    o adjoint:
518      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
519      - TBD: "hidden" mom_vecinv recomp. in dynamics
520    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
521     (allow to differentiate between forcing components using new integer flags:
522      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
523     and add new flag to put Dissipation tendency out of Adams-Bashforth.
524    o ecco
525      - enable trend removal from SSH anomaly obs.
526    o adjoint
527      - a fix for PmEpR when #undef EXACT_CONSERV
528      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
529      - try to fix "hidden" recomp. in forward_step for NLFS
530        (NLFS seems broken sometimes after I checked it in)
531    o seaice:
532     - add c-grid version of the dynamic solver:
533       + three new routines that are the c-grid substitute lsr, dynsolver
534         and ostres
535       + put a few fields that were local to dynsolver into global common
536         blocks, so that I can move the computation of stresses etc into
537         seaice_lsr (saves coding but may break the adjoint).
538     - replace more hardwired parameters by runtime parameters
539     - add ice masks that mask the rhs of the implicit solvers where there
540       is no ice (commented out in seaice_dynsolver, because i am not sure
541       if this works properly), eventually this should replace the clipping
542       of ice velocities in seaice_dynsolver to +/-40cm/s.
543    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
544      include it only where its needed
545    o move balancing of fluxes before the call of external_forcing_surf
546    o seaice:
547      - correct units of turning angles (now they are really in degrees)
548      - move computation of GWATX/Y out of main routine into dynsolver
549      - initialize GWATX/Y in seaice_init
550    o Apply mask on Fresh-Water flux (needed for SSH forcing).
551      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
552    o seaice: add runtime flags for turning angles (default to zero)
553    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
554      and trend from exf forcing and ctrl control adjustments
555    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
556      (since checkpoint57x_post)
557    o change the default rotation period to 86164.s = the Earth rotation
558    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
559      and based on a reference stratification. Tested within hs94.cs-32x32x5.
560    o seaice advection: add code for choosing between the default (2nd order
561      central differences) and multiDim advection schemes provided by
562      pkg/generic_advdiff
563    o seaice:
564      - removed all references to SEAICE_GRID.h fields from
565        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
566        (cubed-sphere configuration will change a little)
567      - grid computations in seaice_init are obsolete now.
568      - cleaned up code a little so that is easier to read (hopefully).
569      - added new (better?) discretizations of default advection and diffusion
570        (turn on with SEAICEuseFluxForm)
571      - replace 1 in 3d global fields by kSurface in growth.F
572      
573    checkpoint58a_post
574    o seaice:
575      - bug fix in advect.F
576    o shelfice:
577      - separate shelfice load anomaly from pload (breaks with time
578        dependent forcing), => introduce constant field shelficeLoadAnomaly.
579        Its default is 0., but it may be computed more cleverly from (unknown)
580        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
581        done offline. A good approximation of the pressure load anomaly is
582        necessary to avoid large initial adjustment processes underneath
583        deep-reaching shelfice.
584      - small fix in ISOMIP shelfice_thermodynamics
585      - add more sophisticated thermodynamics of Hellmer (1989), this is
586        now the default
587      - give a few constants more intuitive names
588    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
589      if bulk formulae are used in long integration (especially EmPmR). Turn
590      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
591      if balancePrintMean, the imbalance that is substracted is printed to
592      STDOUT.
593    o fix bug (typo) in obcs_apply_eta.F
594    o add a new package shelfice which enables us to model the circulation
595      underneath shelf-ice with draughts of hundreds of meters.
596     - works
597     - to do: + include improved thermodynamics
598              + check whether kSurfC (from model/inc/SURFACE.h) can be used
599                instead of new field kTopC
600              + can we use topoFile, Ro_surf and existing code in ini_depth.F
601                instead of new field R_shelfIce and new code in ini_depth.F
602                and ini_mask_etc.F?
603              + adjust vertical mixing schemes?
604    o seaice pkg:
605     - add a cpp-flag to include a simple formula for a salinity dependent
606       freezing point of sea water at the surface
607     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
608       meridional stresses are now different (and hopefully correct)
609    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
610       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
611       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
612    o pkg/diagnostics: add options and parameters for regional-statistics
613       diagnostics ; define regions by reading a region-mask from a file
614       (might add other options later)
615    o pkg/bulk_force:
616     - add option and parameters to use AIM surface-flux formulae.
617     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
618       others forcing fields (defined in PARM05, parameter file "data") are loaded
619       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
620     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
621     - use the right EXCH call for uwind,vwind (to work on CS-grid).
622     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
623       and parameters (note: calcWindStress replaces .NOT.readwindstress).
624     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
625    
626    checkpoint58
627    o add "--embed-source" option to genmake2 which, when the supporting
628      tools can be compiled (as determined by genmake2) will turn on the
629      embed_files package which then embeds the entire MITgcm source code
630      (*.[fFhc] + Makefile) used for the build within the executable
631      - requested by CNH but off by default
632      - adds a paltry <9MB to the mitgcmuv executable in most cases
633      - only writes the output when useEMBEDSRC in eedata is true
634    o clean up 3-dim. relaxation codes:
635      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
636      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
637      * Thanks to Tom Haine for testing!
638    
639    checkpoint57z_post
640    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
641      affects output (@ truncation level) of exp. plume_on_slope ; updated.
642    o fix the pickup behavior for obcs in combination with ptracers
643    o fix a bug in ptracers_external_fields_load
644    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
645      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
646    o transfered surface NH pressure to eta field (if exactConserv).
647    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
648         and update lab_sea output.txt file.
649    o completing 3-dim. relaxation code: additional term
650         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
651      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
652      * At compile time, in "EXF_OPTIONS.h" set
653          #define  ALLOW_CLIMTEMP_RELAXATION
654          #define  ALLOW_CLIMSALT_RELAXATION
655      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
656          tauThetaClimRelax3Dim = 15552000.0,
657          tauSaltClimRelax3Dim  = 15552000.0,
658      * 3 cases:
659          1) Use a constant-in-time 3-dim. field
660          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
661          3) Real-time relax. to time-evolving prescribed field
662    o Adding Laplacian-type smoothness constraint on
663      initial and boundary (forcing) controls (ic, bc)
664      * enable at compile-time via
665        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
666      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
667      * Absolute scale somewhat unclear so far
668      * no area weighting was included since no other cost term does so far
669    
670    checkpoint57y_post
671    First step for a NLFS adjoint
672    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
673    o new init. routines for calc_r_star, calc_surf_dr
674    o still need to deal with ini_masks_etc
675    o testreport seemed happy
676    checkpoint57y_pre
677    
678    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
679    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
680    o add new offset feature to offline pkg (plus minor cleanup)
681    o cfc fixes for final year of integration
682    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
683      be in GCHEM_OPTIONS).
684    
685    checkpoint57x_post
686    o fix testreport Pb in multiple test experiment.
687    o cleanup our namelist syntax in verification:
688      - make it more F95 standards compliant (some work still needed)
689      - allows the vast majority of our tests to work with gfortran
690    o Non-Hydrostatic:
691     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
692     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
693    o Allow to apply AB on T,S rather than on AB(gT,gS):
694     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
695     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
696       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
697     - need a "clever" read_pickup to restart from the other AB formulation
698    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
699    o remove some unused variables (reduces number of compiler warnings)
700    o adjoint
701      * Disable useVariableViscosity for adjoint for time being
702        (there are a number of extensive recomputations)
703      * Initialize certain variables needed for adjoint
704    
705    checkpoint57w_post
706    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
707                 fix the singleCpuIO RS version of MDSWRITEFIELD
708       and add a WARNING if using globalFiles=T with multi-processors.
709    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
710      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
711    o tracer advection scheme:
712      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
713       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
714       was not very convenient).
715      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
716       (further tests needed for the implicit DST & Flux-Limiter schemes).
717    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
718      and sRef for convenience, handy, when you want to initialize
719      ptracers in a large domain with a constant non-zero value. Also,
720      untangle ptracers_init.F a little.
721    
722    checkpoint57v_post
723    o change dome exp. to use variable viscosity in side-drag terms.
724    o remove all the files from the cfc_offline test since they are now
725      incorporated into tutorial_cfc_offline which has been producing
726      identical results for a few days of testing
727    o add new parameter: sideDragFactor to enable half-slip-side BC
728      and change side-drag S/R to use viscosity from mom_calc_visc
729      (can switch back by setting sideDragFactor=0.); affects results at
730      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
731       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
732    o vorticity & strain are now computed without masking, to account for
733      no-slip-side BC in variable viscosity calculation ; mask is applied
734      anyway later on, before computing advection/coriolis terms.
735    o modify exp4 to test new obcs support for reading from external files
736      and for passive tracers
737    o fix behavior of ptracers_monitor when monitor output is written to a
738      netcdf-file; still not independent of monitor.F (writes in the same
739      file).
740    o change default value of tRef (put a uniform, meaningful value for ocean
741      & atmos) and initialize sRef (was missing, as Martin mentioned).
742    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
743      to be proportional to enstrophy dissipation length.  Thus,
744       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
745      This is now consistent with Smagorinsky and with the manual.
746    
747    checkpoint57u_post
748    o OBCS and PTRACERS: add open boundary support for passive tracers
749      - either use homogenous (pseudo) v.Neumann conditions or prescribe
750        OB-values from file; this is not different from the way theta and salinity
751        are treated
752      - however, Orlanski-radiation conditions are not supported, and the model
753        will stop if you use pTracers and Orlanski at the same time.
754      - beefed up the rountine obcs_external_fields_load: now only those open
755        boundary values are overwritten with values from files for which there
756        are really files, otherwise the OB-fields remain untouched. This makes
757        it possible to use different OBs at different ends of the domain (as
758        with EXF)
759    o reduce number of exch calls in shap_filt (s2).
760    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
761      truncation level) 4/5 MLAdjust test results (11&12 digits match).
762    
763    checkpoint57t_post
764    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
765    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
766      same truncation, independent of the face number: affects affects several
767      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
768    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
769      note that biharmonic viscosity + no-slip was not tested in any experiment.
770    o fix bug in non-linear free-surf side-drag ; generate new output for
771      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
772    o make mnc honor the writeBinaryPrec flag for most kinds of output
773    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
774    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
775      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
776    o add brackets in multi-terms sum to get same truncation, independent of
777      the face number (manage to get exactly same value of gU,gV at the cs-edge)
778      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
779    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
780      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
781      a maximum grid-scale Reynolds number.  Also, changes all length calculations
782      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
783      Suggested values of viscosity parameters found in mom_calc_visc.
784      Many new viscosity diagnostics available.
785    
786    checkpoint57s_post
787    o Add clearing-house for viscosity calculations, mom_calc_visc and
788      correct numerous bugs in LeithD and Smagorinsky discretizations.  
789      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
790      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
791      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
792      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
793      The Strain-Tension form is now called with useStrainTensonVisc=.true.
794      ViscAhStrain and viscAhTension are now retired.
795    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
796    o In response to JMC's bug report, genmake2 now ignores any soft-links
797      that it finds in the *current* directory when searching for files.
798      Soft-links found in any other source directories will still work as
799      they did before.
800    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
801      a C routine to unlimit the stack size
802    o mnc-ify pkg/aim snapshot vars
803    o mnc-ify pkg/land as requested by Daniel
804    o various changes to mnc including:
805      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
806      - output can now be grouped so that all files within a group
807          change the ITER portion of their names in lock-step together
808      - can now read ("global") PER-FACE (in addition to PER-TILE) files
809          and works with both EXCH1 and EXCH2 (but needs more testing)
810      - writing works for all verification test cases w/ g77 on Linux
811    
812    checkpoint57r_post
813    o make MNC variable initialization happen earlier
814    o add diagnostics for (almost) each term of the momentum Eq.
815    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
816    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
817    o remove MINIMAL_TAVE_OUTPUT option ;
818      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
819    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
820      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
821    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
822    o add time-dependent SST, SSS control
823    o cost terms in ecco/ modularized (new cost_generic.F)
824    o cost_averages routines are modularized (new cost_averagesgeneric.F)
825    o new infrastructure for seaice model vs. obs misfits in seaice/
826      * driver from the_main_loop.F is seaice_cost_driver.F
827      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
828      * gradient check in Exp. 6a of natl_box_adjoint/
829    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
830      (see README file)
831    
832    checkpoint57q_post
833    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
834    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
835      - bug was reported by Jean-Michel and Ian Fenty
836    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
837      update exp. cpl_aim+ocn output.
838    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
839      Needed for high-res. runs with large global files
840      to be able to limit tapelev size
841    o Changed some tests for adjoint:
842      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
843      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
844      * global_ocean.90x40x15/ back to default 3-level checkpointing
845    o Modifications to enable scripted COMMON to MODULE conversion
846      * verification/OpenAD/code/ has necessary scripts and description;
847      * converts, compiles and runs successfully;
848    
849    checkpoint57p_post
850    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
851    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
852      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
853    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
854    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
855      (was already the case for dissipation with mom_vecinv,
856       and also the case for grad.PhiHyd when staggered-timeStep)
857      This will allow to put dissipation out-off the AB time-stepping.
858     Unfortunately, affects truncation error. Update output of exp. that "fails"
859      (cg2d matching number) and leave the others for later: front_relax(10),
860      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
861      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
862    
863    checkpoint57o_post
864    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
865      (2) its ready to be documented during the 20050801 DocFest
866    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
867      for ideal_2D_oce and lab_sea on linux_ia32_g77
868    o set to #undef CTRL_SET_OLD_MAXCVARS_30
869      in global1x1_tot/code_seaice_adj to access indices 32, 33
870      (worth another tag)
871    
872    checkpoint57n_post
873    o adding precip control xx_precip 32
874    o adding swflux control xx_swflux 33
875    o Replacing 10 forcing penalty cost routines by 1 generic.
876    o Implementing partitioning in time-mean and variable adjustment
877      for atmos. state.
878    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
879    o in natl_box_adjoint:
880      * updated exp 1 to 10
881        (but does not have time-mean vs. variable split results yet)
882    o updated global1x1/*_seaice_adj/
883      to incorporate latest changes
884    o enable useSingleCpuIO for mdsio vector routines
885      (applies in particular to tapelev I/O)
886    o removed inefficient K-loop in all active_file*control*.F
887    
888    checkpoint57m_post
889    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
890      and advect_cs (use EXCH-2 and standard cs-32 grid files).
891    o pkg/exch2: filling of face-corner halo regions is optional
892      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
893    
894    checkpoint57l_post
895     tag before updating tutorials (pre-release-2)
896    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
897       for output and interpolation of input fields onto model grid)
898    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
899       Affects results of exp. rotating_tank ; update output.txt.
900    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
901          and taking the square quantity and/or using a fraction-weight field.
902    o fix aim_diagnostics_init.F mate numbers.
903    o add mnc output capability to diagnostics/diagstat and update
904      our cvsignore files for the ACSII output generated
905    
906    checkpoint57k_post
907    o lab_sea now uses diagnostics package and provides a suite of
908      new EXF diagnostics output.
909    
910    checkpoint57j_post
911    o exf
912      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
913        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
914        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
915      * extended diagnostics output
916        - now includes all EXF variables
917        - hs, hl moved to common block
918        - separate S/R for diagnostics, called after ctrl vector is added
919        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
920        - EXFqnet contains true Qnet (i.e. includes qsw)
921      * updated verif. lab_sea, global_with_exf
922      * Rearranging hflux (exf_mapfields -> exf_getforcing)
923        to ensure that diagnostics sees a true EXFqnet
924    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
925    o diagnostics pkg: change pointers so that 1 diagnostic can be used
926      several times with different frequencies.
927    o mnc-ify the thsice package as requested by Daniel Enderton
928      - the monitor--MNC output needs work
929      - many attributes need to be added (most are currently blank)
930    o mnc-ify theaim_v23 package as requested by Daniel Enderton
931      - many attributes need to be added (most are currently blank)
932    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
933    o add Sadourny like discretization to the 4th.O vorticity advection scheme
934    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
935      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
936         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
937    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
938     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
939    
940    checkpoint57i_post
941    o Diagnostics package was changed: diagnostic allocation is now deactivated
942      by setting an empty file name in the namelist (used to be by setting 0 frequency)
943    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
944      add 1rst Order upwind vertical Shear.
945    o add a quick fix for A/B checkpointing in OFFLINE mode
946    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
947      end-run around the C/Fortran linking horror in eesup/src/timers.F
948    o added pkg/runclock: allows user to terminate run based on wall clock
949    o added non-hydrostatic scaling parameter: nh_am2
950    o pkg/my82: futile attempt to make results compiler-independent by adding
951      some "_d 0", etc. no effect.
952    o for mnc output, fill the 'T' coordinate var with myTime and create a
953      separate 'iter' variable for iteration count
954    o pkg/diagnostics:
955      add new capability: output of Global/Regional & per-level statistics ;
956      tested against monitor output (including land & thSIce) on various exp.
957    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
958    
959    checkpoint57h_done
960      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
961      data.diagnostics, data.gchem, data.ptracers) is done.
962    
963    o pkg/diagnostics: prepare for Global/Regional statistics.
964      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
965    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
966      and rename it: DIFFERENT_MULTIPLE
967    
968    checkpoint57h_post
969    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
970    o pkg/diagnostics: change output frequency, now in seconds (instead
971      of Nb of iterations). This requires to change data.diagnostics.
972    checkpoint57h_pre
973    
974    o in mnc, let the user create the output dir if both mnc_outdir_date
975      and mnc_outdir_num are false
976    o add fflags() to pkg/diagnostics which allows one to specify, on a
977      per-file basis, the file precision [default behavior is unchanged]
978    o added diagnostics to pkg/kpp, including computation of mixed layer
979      depth based on a temperature/density criterion
980    o updated verification/natl_box to test the new pkg/kpp diagnostics
981    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
982    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
983    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
984      not mnc -- this mistake was found by JMC and is now corrected
985    
986    checkpoint57g_post
987    o add Adams-Bashforth 3rd Order time stepping:
988      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
989      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
990    checkpoint57g_pre
991    
992    o make lambda[Theta,Salt]ClimRelax spatially varying
993      (default remains spatially uniform constant based on tau)
994    o added new control variables
995      * init. uVel, vVel, etanN
996      * lambda[Theta,Salt]ClimRelax
997    o separate masks used for ctrl_pack/unpack 'from write_grid' output
998      (suggested by G. Forget)
999    
1000    checkpoint57f_post
1001    o add parameter "baseTime" = model base time = time at iteration zero
1002      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1003      account for baseTime shift
1004    o move Coriolis arrays from PARAMS.h to GRID.h
1005    checkpoint57f_pre
1006    
1007    o mnc-ifying the seaice package
1008    o introduced an alternative length scale calculation for use in the limiting
1009      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1010    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1011    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1012      as well as grad(vort3).  Made it compatible with both approximate form
1013      for the cubed sphere and full form of these gradients.  Added flag
1014      useFullLeith to select between approximate and full form.  
1015    o add "d0" in getcon.F to reduce differences between compilers/platforms
1016      update output.txt of exp. fizhi-gridalt-hs
1017    o change port_rand funtion to allow to set the seed.
1018    o fix obscure MNC bug involving conversion between reals and integers
1019      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1020        new version is now more standards-compliant
1021    o adjoint-related modifications
1022      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1023      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1024      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1025    
1026    checkpoint57e_post
1027    o Adding eddy stress controls a la Ferreira et al.
1028    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1029    
1030    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1031      update output.txt of exp. fizhi-gridalt-hs
1032    o add more "Z" dimensions and associated coordinate vars to MNC
1033    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1034    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1035      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1036      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1037      months and years.  Requires pkg/cal.
1038    o diagnostics: add pickup functionality
1039      - off by default for backwards compatibility
1040      - current version only uses MDSIO -- MNC will be added
1041    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1042    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1043    
1044    checkpoint57d_post
1045    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1046    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1047      output from the diagnostics package
1048    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1049    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1050      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1051    o add coordinate variables to the MNC output from the diagnostics package
1052    o change MNC-flags default value: true when useMNC=TRUE
1053    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1054      the ability (off by default) to read the grid information using MNC
1055    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1056    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1057    o do snap-shot diagnostics at the middle of the time-interval (instead of
1058      at the end).
1059    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1060      new test for AIM with thSIce + slab-ocean
1061    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1062    o move state variable diagnostics to the beginning of the time step ;
1063      (note: still needs some work specially for snap-shot diagnostics)
1064      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1065    
1066    checkpoint57c_post
1067    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1068    o generate new output.txt files on faulks with g77 & the new -ieee option
1069    checkpoint57c_pre
1070    
1071    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1072      update output.txt of exp. global_ocean.90x40x15
1073    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1074      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1075    o add saltFlux(+File) forcing capability with periodicExternalForcing
1076    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1077    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1078    o improvements for the MNC output from DIAGNOSTICS:
1079      - correct handling of the unlimitied dimension
1080      - all dims now have associated coordinate variables
1081      - variables located at U, V, and Corner ("Z") points are now written
1082        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1083        *all* data points are output
1084    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1085    o added pkg/seaice/seaice_monitor.F
1086    o mdsio_readfield.F can now read files visible only to master MPI process.
1087    o pkg/seaice: some test code for ice-modified ocean stress
1088    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1089      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1090      spurious negative numbers for precipitation and humidity.  Will cause
1091      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1092    o pkg/ctrl/
1093      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1094        May be enabled via doPackDiag
1095      *  introduce z-scaling of
1096         + gradient (doZscalePack) and
1097         + control (doZscaleUnpack)
1098    o pkg/mdsio/
1099      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1100      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1101    
1102    checkpoint57b_post
1103    o simplify options in diagnostics_fill arguments (remove weird combinations)
1104    o fix MNC coordinate variables so that they now contain per-face index
1105      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1106      general, EXCH2 grids are only aligned to a "local" coordinate system
1107    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1108    o Implement instantaneous output within pkg diagnostics:
1109      setting a negative frequency in data.diagnostics produces
1110     "snap-shot" output (as opposed to time-average if freq > 0)
1111    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1112      NOTE: change ptracer diagnostics name: use 2 characters to work with
1113            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1114    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1115      becomes the coordinate variable for the 'T' dimension
1116    o add CF-style coordinate variables to MNC
1117      - just a first cut:  numbers are meaningless on the cubesphere and
1118        missing along the T axis but otherwise it works!
1119    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1120    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1121    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1122      this is based directly on what the model compute, so that the content of
1123      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1124    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1125    o clean up build options files for SunOS, in particular
1126      - remove -traditional from xmakedepend
1127      - change -xarch=v9 to -xarch=native for f77
1128      - restore use of make (not gmake)
1129      - add CC=gcc if using g77
1130    o changes per discussion of AM, JMC, & EH3 today:
1131      - move redundant "grid" variables out of "state" -- in preparation of
1132        creating proper CF-style coordinate variables and in recognition
1133        that any/all grid variables can be easily copied (eg. w/NCO) from
1134        the grid files into any of the other NetCDF files
1135      - *always* output grid variables with MDSIO (this will eventually be
1136        changed)
1137      - output MNC grid file if useMNC is true
1138    o every instance of _END_MASTER() has been found and replaced with
1139      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1140      preprocessors
1141    o re-arrange diagnostics pkg initialisation:
1142     - allow each package to extend the available diagnostics list
1143     - add some checking and fix small problems (multi-threaded, ...)
1144     - new S/R diagnostics_fill (replace fill_diagnostics):
1145       look through the short list of active diag. (instead of the long list)
1146       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1147    
1148    checkpoint57a_post
1149    o this set of changes restores TAMC compatibility
1150      tested for global_ocean.90x40x15 adjoint on trough
1151      (what a pain)
1152    
1153    checkpoint57a_pre
1154    o some modifs in tools/build_options for sunos
1155    o call ctrl_pack for ctrl at end for optimcycle=0
1156    
1157    checkpoint57
1158    o add horizontal bi-harmonic viscosity for vertical velocity
1159      - new parameter viscA4W (defaults to viscA4)
1160      - affects only non-hydrostatic code
1161      - to be done: no-slip lateral boundary conditions
1162    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1163    o implement Implicit Vertical advection for pTracers
1164    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1165      (implemented also for implicit vertical diffusion & advection)
1166    o OBCS: extend application of tracer open boundary conditions
1167      to a strip beyond the boundary of width Olx/Oly
1168    o add call monitor to TAF set of required calls (flow directives)
1169      and include in natl_box_adjoint
1170    o untangle a few ifdefs related to cost, ctrl, autodiff
1171      untangel a few ALLOW_ECCO_OPTIMIZATION
1172    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1173      (theta2, salt2 in ecco_cost_weights)
1174    
1175    checkpoint56c_post
1176    o OBCS as control variables
1177      - update ctrl_ad_diff.list, obcs_ad_diff.list
1178      - remove balance of obcs controls from default
1179      - fix index bug nobcs in ctrl_init
1180      - fix dummy fields filen in ctrl_pack
1181      - add dummy weights for obcs
1182    o lsopt: comment out fort.94 output
1183    o optim:
1184      - remove unnecessary header files
1185      - adjusted namelists
1186      - add xerbla.F to Makefile
1187    o exf:
1188      - multiple modifications of exf_check_range
1189      - unit change in exf_init_runoff from [m/year] to [m/s]
1190    o mdsio:
1191      - i/o-vector change debugLevel from debLevA to debLevB
1192    
1193    checkpoint56b_post
1194    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1195      is called from DO_THE_MODEL_IO
1196      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1197      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1198      - clean up PTRACERS_WRITE_TIMEAVE a little
1199    o add another verification experiment that tests both the cfc-pkg and
1200      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1201      reactive tendencies treated inline with regular timestepping
1202    o testreport previously did a lousy job of comparing small numbers, so
1203      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1204      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1205      testreport.
1206    o ptracers_monitor: bug fix for MPI
1207    
1208    checkpoint56a_post
1209    o GCHEM: finish reorganizating the package
1210      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1211        (introduces another 3D-array for each passive tracer, but only if
1212        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1213        gchemTendency is not needed because the timestep is done separately)
1214      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1215      - GCHEM is now---more or less cleanly---separate from PTRACERS
1216      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1217        so clear to me how that should be done in a general way.
1218    o CFC: improve formatting of output in CFC_ATMOS
1219    o PTRACERS:
1220      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1221        that ALL experiments with ptracers enable can be checked. This makes
1222        GCHEM_MONITOR obsolete.
1223      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1224        monitorFreq
1225      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1226    o add PTRACERS (PTR0[1-5]) to testreport output
1227    o exf_check_range:
1228      * default changed to .TRUE.
1229      * will check values for niter0 if debLevA, every timestep if debLevB
1230      * STOP in exf_check_range if 'out of range'
1231      * range chosen generous to allow for potential extema
1232      TBD: a version with stricter range
1233           permitted range would be runtime parameters
1234    o GMredi:
1235      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1236      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1237      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1238    o GCHEM:
1239      - move call to GCHEM_FORCING_SEP, so that it is now called before
1240        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1241      - introduced a useGCHEM runtime flag and applied it everywhere.
1242      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1243        this flag is now only visible within GCHEM-pkg routines.
1244      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1245        be replaced by a 3D array that is computed before thermodynamics; for
1246        this, the tracer ID iTracer had to be included into the parameter list
1247        of ptracers_forcing
1248      - set up forward_step to call gchem_forcing, that will replace
1249        gchem_forcing_int in ptracers_forcing
1250      - cleaning up
1251    o small cleaning of exch2: remove files that are also in eesupp/src
1252    
1253    checkpoint56
1254    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1255    o mnc: cleanup "full" files--fixes out-of-memory problem
1256    o ECCO-GODAE
1257      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1258      * fully merged and updated from SIO code
1259        windstress sign change affects
1260        - exf_inscal_[u/v]stress
1261        - sign of xx_tau[u/v] adjustments
1262        - signs in cost_scat
1263      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1264      * natl_box_adjoint updated and compressed
1265      * 2-level checkpoint switch added
1266        (tested in EXP. 1 of natl_box_adjoint)
1267      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1268    o SVD
1269      * first complete, non-hacked version for SVD calculations
1270      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1271        performed via direct access files admtlm_vector.it????
1272        (via ctrl_[un]pack)
1273      * optimcycle is used for ARPACK iteration counter
1274        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1275      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1276        and add linear transforms where necessary
1277      * controls are initial/final SST, SSS (can be extended; need to check
1278        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1279    o mdsio: filename info to both stderr, stdout
1280    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1281      from sign change
1282    
1283    checkpoint55j_post
1284    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1285      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1286    o add consistent build directories and .cvsignore files to verification
1287    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1288    o make all subroutines 30 or less characters in length for certain older
1289      compilers to work (a thorough search only turns up two routines in
1290      pkg/ptracers)
1291    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1292      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1293    
1294    checkpoint55i_post
1295    o change arrays for total vertical diffusivity (2.D if explicit,
1296      3.D if implicit) ; each ptracer uses its own background value.
1297    o added mnc/NetCDF output capability to ocn_compon_interf
1298      - added bits to verification/cpl_aim+ocn so that it can run on
1299        ITRDA and other clusters without the mpirun "-wd" option
1300    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1301      configuration
1302    o give MNC the ability to create additional files rather than
1303      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1304      - the default is just less than 2GB which is a practical limit
1305        on many systems
1306    o Compute the non-local term using either KPP vertical diffusivity (=default)
1307       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1308    
1309    checkpoint55h_post
1310    o add verification test "vermix"
1311    o remove all the *_ioinc flags and replace with the single global
1312      outputTypesInclusive flag
1313    o allow to set a vertical profile of vertical diffusivity for T & S
1314    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1315    o useMNC moved from data.mnc to data.pkg
1316    
1317    checkpoint55g_post
1318    o Renaming carbon AD experiments to comply with testreport conventions
1319    o Updating adjoint of Held-Suarez hs94.1x64x5
1320    o Fixing directives for non-ECCO forward_step, after ECCO directives
1321      have been fixed to avoid recomp. of do_oceanic_phys
1322      Works well for global_ocean.90x40x15,
1323      but recomp. issue remains for carbon
1324    o Updating adjoint output for natl_box_adjoint after
1325      pkg/ecco has been modified (see taga c55d_post)
1326    
1327    checkpoint55f_post
1328    o rename to timeave_init_fixed
1329    
1330    checkpoint55e_post
1331    o some delicate re-shuffle of store directives to avoid one
1332      extra call of do_oceanic_physics
1333      affects ecco_the_main_loop.F, do_oceanic_physics.F
1334      checkpoint_lev1_directives.h
1335    o NB: this may break global_ocean adjoint temporarily,
1336      but it is clear how to fix it. Will do later, need this now.
1337    
1338    checkpoint55d_post
1339    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1340    o ecco_cost_weights is modified to 1x1 runs
1341    o modifs to allow observations to be read in as
1342      single file or yearly files
1343    o enable to read exf forcing fields as either
1344      single file or yearly files (flag useExfYearlyFields)
1345    checkpoint55d_pre
1346    
1347    o switch between 2-level and 3-level checkpointing
1348    o add ability of MNC to write local and "partial" (eg. 2D slices where
1349      the full 3D field is never actually stored) arrays to NetCDF files
1350      with the correct (that is, the complete multi-dimensional) set of
1351      array indicies
1352      - used in mom_vecinv() to write the diagFreq output
1353      - tested (demonstrated) in verification/aim.5l_cs
1354    o further mnc-ification
1355      - add verification/lab_sea to the list with mnc setups
1356      - fix undefined mnc v-names in cd_code
1357      - add kpp to mnc output (both snapshot and timeave)
1358    o non-hydrostatic code
1359      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1360        in calc_gw.F
1361      - defaults to viscAh
1362      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1363        friction or Leith) in non-hydrostatic mode, as long as there is
1364        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1365    o pkg/cost
1366      extend simple cost functions to treat time mean quantities
1367      (T,U,V) via cost_accumulate_state from cost_tile
1368    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1369        be 2 times larger than the minimum size the advection scheme requires.
1370        now get a perfect conservation of salt in advect_cs test-exp (updated)
1371    o GGL90 (Gaspar's TKE mixed layer)
1372      - add horizontal diffusion of TKE, requires exchanges in
1373        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1374        default. In OPA there is no horizontal diffusion of TKE but the
1375        mixing coefficients are computed from a horizontal average of TKE of
1376        6 points or so. I think that diffusion has a little more physical
1377        justification.
1378      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1379        was in vain)
1380      - mask tke-variable in ggl90_init
1381    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1382    o fix biharmonic diffusion on CS-grid.
1383    o more obcs stuff
1384      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1385        for reading boundary values. This routine is called from
1386        obcs_prescribe_read
1387      - updated obcs_check
1388      - changed sponge layer relaxation parameter units for days to seconds
1389      - turned off sponge layer by default
1390      - changed argument list of OBCS_CALC to myTime+deltaTclock
1391      - fixed about 35 bugs in obcs_external_fields_load
1392    
1393    checkpoint55c_post
1394    o obcs stuff
1395      - new runtime flags useOBCSprescribe, useOBCSbalance
1396      - re-arranged obcs_calc
1397      - moved exf_getobcs to obcs_prescibe_read
1398        obcs_prescibe_read is called after ORLANSKI stuff
1399        and independent of it (executable can contain all).
1400      - updated obcs_check
1401      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1402        These may be necessary only if tangential velocities are
1403        prescribed at OB, not sure, needs testing.
1404    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1405      which simplifies the calls and passes the ifc check-bounds test
1406    
1407    checkpoint55b_post
1408    o add a 2D scalar, Z location, exchange_2 routine.
1409    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1410      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1411      affects advect_cs results (for the wrong reason): update output.txt
1412    o use a more standard discretization for biharmonic viscosity ;
1413     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1414      affects results of dome set-up: update output.txt
1415    o fix gad_advection.F (CubedSphere part), back to version 1.23
1416    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1417    
1418    checkpoint55a_post
1419    o merged code to
1420      * prescribe/read time-dependent open boundaries
1421        (works in conjunction with exf, cal)
1422      * sponge layer code for open boundaries
1423      * each boundary N/S/E/W now has its own CPP option
1424        (healthy for the adjoint)
1425    
1426    checkpoint55
1427    o up-to-date adjoint of previous breaks
1428      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1429      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1430      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1431      - carbon: * remove tr1-related adjoint verification
1432                * add ptracer as control variable
1433    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1434      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1435    
1436    checkpoint54f_post
1437    o in verification/carbin/ remove experiment related to
1438      ALLOW_PASSIVE_TRACER (array tr1 etc)
1439      code_ad/ input_ad/ results_ad
1440    
1441    o add two new packages
1442      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1443        + subject to optimization (memory)
1444      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1445        + subject to reordering (many GOTOs in the original code)
1446        + so far opps is called for every (i,j) point, and then operates in
1447          the vertical; one may want to reorder the scheme in order operate in
1448          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1449          fields)
1450    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1451      - all verification tests compile and run with linux_ia32_g77
1452      - defaults are compatible with current input files--nothing
1453        should change if you were not previously using MNC
1454      - MNC output has been added in numerous places (eg. timeave)
1455        but there are still a few writes not yet do-able with MNC
1456        (this is in progress)
1457      - flags now allow for either/or/both use of MDSIO and MNC and
1458        documentation will soon follow
1459      - numerous small formatting cleanups for ProTeX
1460    o add version info (via BUILD_INFO.h) to MNC and stdout
1461    
1462    checkpoint54e_post
1463    o add two new packages
1464      - pp81 (Packanowski and Philander, 1981), Richardson number and
1465        stratification dependent mixing
1466      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1467      - these scheme operate in a similar manner as KPP (without ghat, of
1468        course), however there is only one diffusivity that is used for both
1469        temperature and salinity (and passive tracers)ç
1470    o add offline package
1471    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1472      provided by Stephanie Dutkiewicz
1473    o genmake2: add ability to search for C compilers and cleanup test output
1474      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1475    
1476    checkpoint54d_post
1477    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1478    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1479      leading to additional shift by 5 days each year of integration
1480       (i.e. leading to considerable offset over the years)
1481    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1482    o start with no AB and no initial filtering (staggerTimeStep):
1483      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1484    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1485      (external loading & cpl import/export stay in forward_step.F)
1486    o update coupling interface to work with new staggerTimeStep
1487    o change MDSIO ptracers_pickup.
1488    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1489    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1490    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1491    
1492    checkpoint54c_post
1493    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1494      this affects (truncation error) output.txt of test-exp:
1495       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1496    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1497    o change Qnet to always be the net heat flux, (+upward).
1498      affects (truncation error) output of natl_box exp.: updated
1499    o define the max number of passive tracers in PTRACERS_SIZE.h
1500    o start to test mnc routinely in exp0
1501    o add sea-ice loading (sIceLoad) as a new forcing field.
1502    
1503    checkpoint54b_post
1504    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1505       impressive on Altix and Opteron systems)
1506    o diagnostics can now write NetCDF files through the mnc package
1507    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1508    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1509    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1510      affects (truncation error) output of lab_sea & natl_box exp.: updated
1511    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1512    
1513    checkpoint54a_post
1514    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1515    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1516    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1517    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1518      + internal_wave (shift in writing cg2d_ini_res)
1519    checkpoint54a_pre
1520    
1521    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1522      - modified verification/lab_sea and natl_box_adjoint accordingly
1523    
1524    checkpoint54
1525    checkpoint53g_post
1526    o prepare splitting of thermodynamics: store convect.counter in common block
1527    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1528      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1529    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1530    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1531    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1532    o restore adjointability
1533    
1534    checkpoint53f_post
1535    o modifications that affect AIM experiment results (update output.txt):
1536      - no advection of S at top interface Nr (pkg/generic_advdiff)
1537      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1538    o AIM pkg:
1539      - include stability function into surf.Flux derivative relative to Tsurf
1540      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1541    
1542    checkpoint53e_post
1543    o merged cylindrical coord configuration
1544    o added rotating_tank experiment
1545    checkpoint53e_pre
1546    
1547    checkpoint53d_post
1548    o faulks upgraded: re-generate output.txt that have changed:
1549       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1550    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1551    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1552    o added Sadourny discretization of Coriolis
1553      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1554      - re-enabled use of omega3 (useAbsVorticity)
1555    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1556      vector-invariant equations
1557      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1558    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1559      hopefully without new bugs
1560      - still to do: biharmonic friction for non-hydrostatic w
1561    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1562    o regenerated output for global_ocean_ebm (using -ieee)
1563    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1564      of mom_common/
1565      - simple re-arrangement of instructions within computing loop
1566    checkpoint53d_pre
1567    
1568    checkpoint53c_post
1569    o new version of coupler for AIM+thSIce and Ocean models
1570     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1571     - land: change Evaporation of snow
1572     - aim with thSIce: fix bug in snow-precip.
1573    o changes to calc_gw.F
1574     - bug fix for w^2 term near the bottom boundary
1575     - (hopefully) improve the lateral slip boundary condtions for use with
1576        partial/looped cells
1577      - because the bug fix changes two verification experiments anyway (exp5
1578        and plume on slope), change the lateral boundary condition from half slip
1579        to the value of no_slip_sides
1580    o ebm package wasnt quite up to the parallel task. Fixed that.
1581    o Adjoint of EBM package + verification
1582      * TLM OK
1583      * ADM not sufficient accuracy yet (needs further testing)
1584    
1585    checkpoint53b_post
1586    o Commiting new energy balance model to repository
1587      * package is pkg/ebm
1588      * verif. is verification/global_ocean_ebm
1589      * references are in ebm_driver.F
1590    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1591    C        Global thermohaline circulation. Part I:
1592    C        Sensitivity to atmospheric moisture transport.
1593    C        J. Climate 12(1), 71-82
1594    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1595    C        Global thermohaline circulation. Part II:
1596    C        Sensitivity with interactive transport.
1597    C        J. Climate 12(1), 83-91
1598    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1599    C        Destabilization of the thermohaline circulation
1600    C        by atmospheric eddy transports.
1601    C        J. Climate 7(12), 1870-1882
1602    o Will need long integration testing.
1603    checkpoint53b_pre
1604    
1605    o created pkg/mom_common in preparation for variable viscosity code
1606    o renamed and split ini_mnc_io
1607    o pkg/land: only liquid water can diffuse or run-off
1608    o AIM using land: soil wetness availability account for snow
1609    o added printMapIncludesZeros to EEPARMS namelist
1610    
1611    checkpoint53a_post
1612    o restore TAMC compatiility for exf_constants.h
1613      (no usage of _d in .h)
1614    o Additional storing in KPP in an attempt to fix
1615      TAMC problem with adjoint of KPP code.
1616      (no success...)
1617      Identical code works fine with TAF.
1618    o Fixed verification/natl_box_adjoint experiments.
1619      Initial conditions for Experiments 4 and 5 are now
1620      set to "SEAICE_initialHEFF=0", which is more reasonable,
1621      and hence gives results closer to that of Experiment 2.
1622      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1623    
1624    checkpoint53
1625    o stable checkpoint with up to date adjoint
1626      TLM tests only run for 1st grdchk at the moment. Its unclear if
1627      this is a code problem or a problem with resetting code for g_
1628      variables that is being autogenerated wrong.
1629      Otherwise:
1630       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1631       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1632         are both still in chaos following their security messes.
1633    
1634    checkpoint52n_post
1635    o various build (mostly genmake2) changes including:
1636      - ability to build/run more easily within Cygwin and MacOS X
1637      - more complicated Makefiles with a stronger dependence on Gnu Make
1638    o pkg/seaice modifications
1639      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1640        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1641        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1642      - changed proxy for geostrophic velocity and updated
1643        verification/lab_sea/results/* accordingly
1644      - removed ADI dynamic solver from pkg/seaice
1645      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1646        they caused a segmentation fault under certain circumstances
1647      - removed unused field WATR
1648    o bug fix in exf-package:
1649      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1650         now reflect that.
1651    o small fixes in the cal-package:
1652      - set reference date to first of January for the 'model'-calendar
1653      - failing of cal_CheckDate in cal_FullDate now actually results in a
1654        warning
1655    o small modifications in exf-package to increase flexibility:
1656      - change climtempfreeze from a constant to a runtime parameter that
1657        is specified in data.exf_clim (default = -1.9)
1658      - introduce runtime parameter windstressmax (default = 2.0) that is
1659        specified in data.exf
1660    o fix in pkg/thsice:
1661      - update Evap (Tsf changes) to be consistent with Latent heat flux
1662      - maintain snow precipitation unchanged (even if Tsf >=0).
1663     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1664    
1665    checkpoint52m_post
1666    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1667      this does not change any of the results, because myIter=0 in swfrac always
1668      lead to jwtype=2 (the default anyway), but the call makes little sense
1669      as a default
1670    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1671    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1672      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1673    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1674    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1675    o extending useSingleCpuIO option to work with new exch2 I/O format
1676      - old-style, missing-tile I/O is still accessible by defining CPP
1677        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1678    o monitor package can write to NetCDF files and/or STDOUT
1679    o fix re-definition bug in MNC_GRID_INIT_ALL()
1680    o doc/api_reference added
1681      - a framework for building an API Reference Manual using all
1682        the "protex" comments embedded in the code
1683      - see pkg/generic_advdiff, pkg/mnc for examples
1684    o MNC:
1685      - make myThid the last argument for all subroutines
1686      - new default for the grid files: NO halos
1687      - add useMNC and other run-time flags
1688      - separate per-file-group handling of the unlimited dimension
1689      - early initialization of MNC w/ flags read at the eeboot stage
1690        and lookup tables set in initialize_fixed
1691      - write all MNC output to a freshly-created directory
1692    o thermodynamics sea-ice (thsice) is now tested with testreport.
1693    o test exp. advect_cs: use the standard cs32 grid ; update output.
1694    o Added functionality to grdchk:
1695      pick global i,j,k position (or nearest wet) where to perform check.
1696    
1697    checkpoint52l_post
1698    o new land formulation:
1699      a) use ground enthalpy as prognostic variable to ensure exact
1700         energy conservation.
1701      b) account for water temperature and for latent heat of freezing
1702         in all processes (rain, run-off, ground storage)
1703      c) compute surface and ground temperature implicitly.
1704    o aim_v23 modification for new land model:
1705      a) Treat separately land / ocean / sea-ice surface fluxes
1706         to allow implicit computation of land & sea-ice surface temp.
1707      b) add snow precipitation.
1708    checkpoint52l_pre
1709    
1710    o fix problem (when 1 tile is empty) in min/max monitor.
1711    o fix bug in timeAve (u,vZetatave in common block)
1712    o no restoring terms under ice for pkg/seaice
1713    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1714    o bug fix for pkg/seaice pickups
1715    o change MNC call locations and add coordinate attributes
1716    o mask vorticity at the corner ; affects global_ocean.cs output
1717    o fix ini_curvilinear_grid ; test CS experiments with mpi
1718    o aim.5l_cs: modify sea-ice fraction input file ; update output
1719    o exf: Adding simple range check routine for exf fields after read
1720    
1721    checkpoint52k_post
1722    o removed top-level directory "diags"
1723      - we migrated these functions to pkg/timeave a long time ago
1724    o fixed bug introduced in pkg/monitor
1725    o accuracy ctrlprec = 32 insuffient for gradient checks using
1726      averaged fields (I/O via cost_averages)
1727      -> use ctrl.h in active_file*.F to control I/O precision.
1728    o paramter list of CALL ADTHE_MAIN_LOOP
1729    o added initial do_the_model_io to ecco
1730    o set all ...Freq to zero after cost_final
1731      taveFreq, dumpFreq, pChkptFreq
1732    o MAIN and ECCO differentiability restored
1733    
1734    checkpoint52j_post
1735    o fix nchklev in tamc.h for global_ocean...
1736    o Bringing flow and store directives up-to-date
1737    o Really weird thing!
1738      call do_the_model_io from the_main_loop with parameters
1739      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1740      TAF places a faulty re-call of initialise_varia
1741      after cost_final call which should not be there!
1742    checkpoint52j_pre
1743    
1744    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1745      error messages
1746    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1747    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1748      debug output
1749    o modfied mdsio_writefield.F to handle non-global files under exch2
1750    o update AIM Cubed-Sphere exp (aim.5l_cs):
1751      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1752    o update AIM Equatorial Channel exp:
1753      use standard aim_v23 pkg and change the SST fields to be more realistic.
1754    o globalFile now works with exch2
1755    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1756      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1757    o limit timeave output for hi-res integrations
1758    
1759    checkpoint52i_post
1760    o removed CPP_EEOPTIONS.h from verification/*/code
1761    o updated the tiling for global_ocean_pressure
1762    checkpoint52i_pre
1763    
1764    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1765      the old pkg/aim).
1766    
1767    checkpoint52h_pre
1768    o shortened offending lines in exch2_send_rx?.template
1769    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1770    o genmake2: add build & execute test for NetCDF code
1771    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1772      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1773    o added useSingleCPUIO flag to monitor.F and mon_out.F
1774    o added temporary hack for sea-ice dynamics on the cube:
1775      metric terms are ignored and it is assumed that
1776      there is no sea-ice on cube faces 1, 2, 4, and 5.
1777    
1778    checkpoint52f_post
1779    o added exch2 cube routines to pkg/exch2
1780    o modified hs94.cs-32x32x5 to use it
1781    o added new grid files to hs94.cs-32x32x5
1782    checkpoint52f_pre
1783    
1784    checkpoint52e_post
1785    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1786      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1787    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1788      to work with implicit vertical advection and AB ;
1789    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1790    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1791     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1792    checkpoint52e_pre
1793    
1794    o fix bug in impldiff when Nr=1 or Nr=2.
1795    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1796    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1797    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1798      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1799    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1800    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1801    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1802    
1803    checkpoint52d_post
1804    o re-tiled many expts to allow comparison in multi-processor mode
1805      - updated output accordingly
1806      - changed hs94.128x64x5 to use intial T from file rather than use the
1807        random number generator
1808    o add infrastructure in model routines for fizhi and gridalt packages
1809    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1810    o changes to permit hi-res, cubed-sphere, configuration
1811      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1812      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1813      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1814        of surface winds for the cube
1815      (A verification experiment, based on global_ocean.cs32x15, but with
1816       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1817       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1818       complete with example surface forcing files and matlab scripts to look
1819       at the output and compare it with that of global_ocean.cs32x15.)
1820    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1821       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1822       to conform to the common rule.
1823    o check-in the first version of the coupler + interfaces for multi-components
1824       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1825       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1826       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1827       - ocean and atmos. share the same horizontal grid (no interpolation).
1828       - exchanges between component and coupler is done in forward_step
1829    o new verification experiment, cpl_aim+ocn:
1830       coupled ocean - AIM atmosphere on cs32 grid.
1831    
1832    checkpoint52d_pre
1833    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1834    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1835    
1836    checkpoint52c_post
1837    o Fixing OPTIONS files for use of exf:
1838      - ALLOW_ECCO not needed
1839      - ECCO_CPPOPTIONS.h should not be included from
1840        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1841        as has been the case in the past
1842      - All cal/exf related options are currently set in
1843        single header file. Should remain so until we
1844        agree on a consistent new policy.
1845    o Removed all CPP options for cal package.
1846      cal has no more CPP options.
1847    o modified STOREs in GAD_ADVECTION
1848    o corrected key comp. for passkey
1849    
1850    checkpoint52b_post
1851    o new version: "thsice" of thermodynamic sea-ice pkg:
1852     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1853     - modify fluxes but do not change theta directly;
1854     - light cleaning of bulk_force pkg (still needed with thsice).
1855     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1856       + output_thsice.txt to test thsice & bulk_force pkgs.
1857    o put back grid & coriolis monitor output.
1858    checkpoint52b_pre
1859    
1860    o call "do_the_model_io" at the beginning (=> dump initial state)
1861    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1862    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1863      (need info on NUMBER_OF_PTRACERS)
1864    o missing PTRACERS headers in some routines
1865    o default tamc.h in pkg/autodiff supposed to crash
1866      to ensure proper customization
1867    
1868    checkpoint52a_post
1869    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1870      - moved surfaceTendencyTice from pkg/seaice to main code
1871      - subroutine FREEZE_SURFACE now limits only surface temperature
1872        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1873        => new output.txt for global_ocean.cs32x15 & global_with_exf
1874      - keep the old version of FREEZE for backward compatibility;
1875        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1876      - corresponding modifs for TAF directives
1877    o added surface flux output variables to TIMEAVE_STATVARS
1878    o time-averaged output for pkg/ptracers
1879    o fix problem with ECCO-related divided adjoint
1880      snapshot file was missing some ad-variables,
1881      but no warning issued by TAF
1882    
1883    checkpoint52a_pre
1884    o some bug fixes for #undef REAL4_IS_SLOW
1885    
1886    checkpoint52 = ecco_c52_e35
1887    o after testing adjoints of checkpoint51u_post
1888    
1889    checkpoint51u_post
1890    o this is the post-merge tag of the ecco-branch
1891      (needs another clean checkout and re-testing)
1892    o various natl_box_adjoint configs and results
1893      but no input fields
1894    o obcs adjoint not yet merged!
1895    o adding ECCO global 1x1 and 2x2 degree configs
1896    o updated/extended some store directives for seaice
1897    o pkg/ecco now containes ecco-specific part of cost function
1898    o top level routines the_main_loop, forward_step
1899      supersede those in model/src/
1900      previous input data.cost now in data.ecco
1901      (new namelist ecco_cost_nml)
1902    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1903    
1904    checkpoint51t_post
1905    o this is the pre-merge tag of the ecco-branch
1906    
1907    checkpoint51s_post
1908    o cleanup: removed various obsolete #define-s
1909    o pkg/grdchk
1910      - renamed 'ph-grd 3' to 'grad-res'
1911      - merged from ecco-branch
1912        (remaining bug fixes for obcs gradient checks)
1913      - additional high-precision output for testreport
1914        (grep for 'precision_grdchk_result')
1915    
1916    checkpoint51r_post
1917    o cleaned up or removed CPP_OPTIONS.h files
1918    o updated results for some of the tests to reflect the new
1919      optfiles (-ieee: -O0 instead of -O3)
1920    
1921    checkpoint51q_post
1922    o cd_code:
1923      - moved cd_scheme.F -> cd_code_scheme.F
1924      - separate read_checkpoint from cd_code_ini_vars.F
1925      - separated cd_code part from write_checkpoint
1926      - updated AD_SOURCE, generated .flow
1927      - added CD_CODE_VARS.h to the_main_loop
1928      - Moving cd_code specific store dir.s to pkg/cd_code
1929    o ctrl package totally restructured
1930      - pack/unpack now optional and decoupled from
1931        xx_/adxx_ I/O
1932      - ctrl_pack/unpack cleaned
1933        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1934      - confined inclusion of AD_CONFIG.h to where necessary.
1935    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1936    
1937    checkpoint51p_post
1938    o create initial cd_code package
1939      - WARNING: the initialization of fields within packages
1940        is broken because INI_FIELDS (where READ_CHECKPOINT is
1941        called) is called *before* PACKAGES_INIT_VARIABLES.
1942        This seems to be backwards since
1943        1) its important to initially zero the entire field including
1944           the "halo" region
1945        2) zeroing needs to be done *before* reading pickup info
1946           and the pickup call might or might not happen in any
1947           particular run
1948      - this needs an overhaul for R2
1949    o cleanup verification/*/code/GMREDI_OPTIONS.h
1950    o cleanup testreport
1951    
1952    checkpoint51o_post
1953    o bringing AD-related verif's up to date with genmake2
1954      - carbon/
1955      - global_ocean.90x40x15/
1956      - hs.94.1x64x5/
1957      - (front_relax/ )
1958    o (more) consistent directory structure for AD-related verif.'s
1959    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1960    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1961    o bug fix in find_alpha.F for MDJWF:
1962      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1963        change rho -> rho-rhoConst
1964      - replace call find_rho to find_rhonum
1965    o initialisation of rFlx extended to full array (required by TAF)
1966      and shifted to thermodynamics
1967    o removed PTRACERS.h in ptracers routine
1968    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1969    o Correcting initialisations for fVerU, fVerV.
1970    o helping TAF to recognize dependency on kUp for
1971      fVerU, fVerV
1972    o Replacing delZ by delR in pkg/ctrl/
1973    checkpoint51o_pre
1974    
1975    o undid all of cp51 pending some cleanups and discussion
1976    o added the [#include "AD_CONFIG.h"] statement to all files that need
1977       it for adjoint/tl #defines
1978     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1979     o removed tools/genmake since it no longer works
1980    
1981    checkpoint51n_post
1982    o modifications to make FREEZE flux visible to pkg/kpp
1983      - moved surfaceTendencyTice from pkg/seaice to main code
1984      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1985      - subroutine FREEZE now limits only surface temperature
1986        (this means new output.txt for global_ocean.90x40x15,
1987         global_ocean.cs32x15, and global_with_exf)
1988    o added surface flux output variables to TIMEAVE_STATVARS
1989    
1990    checkpoint51n_pre
1991    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1992    o added [#include "AD_CONFIG.h"] to all files that use the following
1993      defines:
1994      - ALLOW_ADJOINT_RUN
1995      - ALLOW_TANGENTLINEAR_RUN
1996      - ALLOW_ECCO_OPTIMIZATION
1997    
1998    checkpoint51m_post
1999    o incorporating changes to get TAMC/TAF working in genmake2
2000      - added new TAMC/TAF targets to the Makefile
2001      - various cleanups related to package handling
2002      - these changes should have no impact on the forward model
2003    
2004    checkpoint51l_post
2005    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2006     - faster algorithm for cal_addtime.F
2007     - higher precision arithmetic, where needed
2008     - pkg/exf *startdate variables changed from calendar date to
2009       model integration time
2010    
2011    checkpoint51l_pre
2012    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2013    o enable to apply restoring on S & T only in a latitude band.
2014    o update output (external_forcing_surf modif. change truncation errors)
2015       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2016    
2017    checkpoint51k_post
2018    o change default to: useNHMTerms=.FALSE.
2019     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2020       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2021     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2022        exp1, ideal_2D_oce
2023     - change data file of oceanic exp (leave the results unchanged for now)
2024       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2025    o set gravitySign automatically according to the vertical coordinate used
2026      (and change sign: back to "logical" value: +1 when R increases downward)
2027    o added an include barrier to the default CPP_OPTIONS.h and
2028      removed the #include "PACKAGES_CONFIG.h" from it
2029    o fix a bug in mom_fluxform (from chk51j_post)
2030    
2031    checkpoint51j_post
2032    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2033    o adjusted some flow directives (dynamics, thermodynamics)
2034    o added cubed-sphere case to test cost function
2035    o heckpoint_lev?_directives.h now include
2036      pkg-specific directives, whenever those are enabled.
2037    o Moving pkg-specific flow directives to corresponding pkg
2038      Moving pkg-specific differentiation list to corresponding pkg
2039      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2040      ---> conventions are
2041           - pkg_ad.flow
2042           - pkg_ad_diff.list
2043           - pkg_ad_check_lev?_dir.h
2044    
2045    checkpoint51i_post
2046    o merge of the branch-genmake2
2047      - knowingly breaks the older genmake
2048      - automatic generation of all ALLOW_${PKG_NAME} defines
2049      - new testreport supersedes older testscript
2050    o large number of package inclusion and header cleanups
2051    checkpoint51i_pre
2052    
2053    o new output for adjoin of global ocean vector invariant
2054    o fix for checkpoint of thermodynamic seaice and bulk_force
2055    o Steph gchem various cleanups
2056    
2057    checkpoint 51h_pre
2058    o fixed some single quotes
2059    o modify gchem pkg to be more versatile
2060    o modifications to clean up dic pkg
2061    o add pkg/cfc
2062    
2063    checkpoint51g_post
2064    o provide links for ARPACK and ADM*TLM
2065    o start removing verification/vero/
2066    o update AD-related stuff
2067      (in particular some IF-statements in model/src/ routines)
2068    o adding to verification/global_ocean.90x40x15/ adjoint of
2069      vector invariant setup
2070    
2071    checkpoint51f_post
2072    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2073    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2074      of tracer Green's fucntions for ocean inversion project.
2075    
2076    checkpoint51f_pre
2077    o Added on-the-fly spatial interpolation capability
2078        "USE_EXF_INTERPOLATION" to pkg/exf.
2079      - This is a temporary Cartesian-grid hack until
2080        the super-duper ESMF coupler becomes available.
2081      - See verification/global_with_exf/README for usage example.
2082      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2083        flags and modified pkg/seaice accordingly.
2084    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2085        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2086        non-local transport term.
2087    
2088    checkpoint51e_post
2089    o pkg/mom_vecinv:
2090      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2091      - add time-ave diagnostic of vorticity advection.
2092    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2093    o atmospheric geopotential: - include water vapor effect;
2094                                - use p^kappa in p* scaling.
2095    o land pkg: read initial state from files.
2096    o AIM : add stratospheric drag in the upper level
2097    
2098    checkpoint51d_post
2099    o change function ILNBLNK (=> last non-blank char.) to return zero
2100      (instead of the string length) when the string. char is empty
2101    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2102    o modif's to restore TAMC compatibility
2103      - avoid "_d" constructs in PARAMETER declarations
2104      - avoid interrupting lines by comment lines
2105    o Use cluster local disks for purely local I/O
2106      vs. globally visible disks needed for ctrl stuff
2107      (merged from ecco-branch)
2108      - new active_file_loc... and mdsio_..._loc routines
2109      - affected packages: autodiff, ctrl, grdchk, mdsio
2110    
2111    checkpoint51c_post
2112    o introducing integer flag debugLevel
2113      - debLevZero: suppress all output
2114      - debLevA: standard
2115      - debLevB: equivalent to current debugMode=.TRUE.
2116    o introducing pathname variable mdsioLocalDir for mdsio
2117      that can be specified at runtime
2118      (relevant for cluster I/O to local disk)
2119    `
2120    >>>checkpoint51b_post
2121    adjoint of ptracers
2122    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2123    o extended state in checkpoint_lev?, etc.
2124    o alternative ctrl/cost with tr1 or ptracer
2125    o new comlev1_bibj_ptracers
2126    o new ptracers.flow
2127    o made ptracers_forcing same as external_forcing_s
2128    o added verification for adjoint with ptracers
2129      - adm. grdchk fail so far
2130      - tlm. grdchk OK
2131      - checked tapelev/comlev recomputations: OK
2132    <<<checkpoint51b_pre
2133    
2134    checkpoint51a_post
2135    o added code for biogeochemistry package
2136      - new pkgs: dic, gchem
2137      - new subroutine in ptracers
2138    o modify code for biogeo packages
2139      - in model/src and pkg/ptracers
2140    
2141    checkpoint51
2142    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2143      - autodiff, ctrl, exf, grdchk, seaice
2144      kept separate packages
2145      - cost, ecco, obcs
2146    o updating verification/internal_wave, verification/lab_sea
2147      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2148    
2149    checkpoint50i_post
2150    o Preparing next differentiable checkpoint and sync
2151      of MAIN vs. ecco-branch
2152      - 1st step: this one is differentiable
2153      - 2nd step: next(! not this) checkpoint will have updated packages
2154                  from ecco-branch)
2155    
2156    checkpoint50h_post
2157    o new package "land": provide surface BC for AIM.
2158    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2159    o AIM: use true log-P extrapolation for near surface temp (= as in
2160        F.Molteni paper) ; update aim.5l_cs output.
2161    o New variable in PARM03 for more flexible pickups
2162    o somewhat cleaned package initialisation sequence for
2163      ctrl/ cost/ ecco/ in packages_... routines
2164    
2165    checkpoint50g_post
2166    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2167      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2168      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2169        made the default because of faster convergence than ADI
2170    
2171    checkpoint50f_post
2172    o exf totally restructured
2173      - replaced all exf_set_ routines by one generic exf_set_gen.F
2174        and made sure it's still differentiable
2175      - split exf_getffields.F into new exf_bulkformulae.F
2176      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2177      - updated adjoint/makefile and relevant verif. accordingly
2178    
2179    checkpoint50f_pre
2180     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2181          + change Evap over land. (update aim.5l_cs output)
2182     o added missing .cvsignores and made uniform across expts
2183     o changed configuration of tidal_basin_2d expt
2184     o added pkg/debug functions for tracing code in fatal crashes
2185     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2186     o new fn in pkg/monitor to stop model if solution grows too big
2187     o removed lots of single quotes from comments
2188    
2189    checkpoint50e_post
2190    o make KPP work with PTRACERS
2191     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2192       nearly a copy of kpp_transport_s
2193     - there is no analogue to SurfaceTendencyS, so I have to use
2194       gPtr(of the surface layer) instead
2195    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2196    checkpoint50e_pre
2197    
2198    checkpoint50d_post
2199    o change kpp output from multiple-record state files to single-record state
2200      files analogous to write_state.F
2201    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2202      analogous to the cg2d-related output.
2203    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2204      so that writing to internal file fn (with length 512) fails.
2205    checkpoint50d_pre
2206    
2207    checkpoint50c_post
2208    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2209    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2210    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2211    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2212    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2213    
2214    checkpoint50c_pre
2215    Merging from release1_p13:
2216    o bug fix for pkg/seaice dynamic solver
2217    o Added SEAICE_initialHEFF to pkg/seaice
2218    
2219    checkpoint50b_post
2220    o store u*,v* in gU,V instead of in guNm1,gvNm1
2221    o in order to put the momForcing out of the Adams-Bashforth:
2222      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2223      to timestep.F
2224    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2225    o re-generate output for highly sensitive test-exp:
2226       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2227    
2228    checkpoint50b_pre
2229    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2230    o corrected CPP option mismatch in exf_Bulk... functions for case
2231      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2232    
2233    checkpoint50a_post
2234    o Bug fix for merging between c50 and KPP.
2235      ikey was passed from thermodynamics to kpp_calc via
2236      common block rather than being recomputed in kpp_calc,
2237      in contradiction with new key itdkey.
2238      New key ikppkey created, and tamc.h headers updated.
2239    
2240    checkpoint50
2241    - 2nd step of merge with ecco-branch:
2242      merge changes in ecco-branch back into main trunk
2243    - bug fix in find_alpha
2244    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2245    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2246    - merged some sliced AD support routines
2247    
2248    checkpoint49
2249    merged from ecco-branch:
2250    o exf:
2251      - Enable initialisation of forcing fields to constant
2252        (runtime) values.
2253      - in exf_getffields.F
2254        Reduce i-/j-loop to interior domain, discarding overlaps.
2255        That also fixes wrong TAF-key computations for key_1, key_2
2256        with bulf formulae.
2257      - exf_init.F modify #ifdef for exf_init_evap
2258      - exf_getffieldrec.F, ctrl_getrec.F
2259        The following INT-usages are not safe:
2260          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2261          fldcount = int(fldsecs/fldperiod) + 1
2262        and were modified.
2263    o autodiff: checkpoint_lev...
2264      - updated storing for bulk formulae (some arrays were missing)
2265      - added state for seaice package
2266      - synchronized with main branch
2267    o DIVA:
2268      Modif.s in
2269      - the_main_loop.F
2270      - the_model_main.F
2271      and added cost_final_restore.F cost_final_store.F
2272      o With these changes, it is possible to fully separate
2273        the first forward run to compute the cost function (mdthe_main_loop)
2274        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2275        into separate model executions.
2276        This enables better tuning of DIVA to given queue sizes.
2277      o Loss of cost function value in consecutive DIVA runs is
2278        fixed by storing to 'costfinal' file.
2279      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2280        beginning/end of adjoint integration is accounted for.
2281      The current changes apply to TAF-1.4.26.
2282      TAF has one remaining bug, requiring one manual change
2283      (see MITgcm manual).
2284    o cal: synchronized between MAIN and ecco-branch
2285    
2286    checkpoint48i_post
2287    o Changes to restore differentiability of code w.r.t. previous tag
2288      (mostly adding new routines to make list and replacing
2289      pressure by totPhiHyd).
2290    o Updated and merged grdchk package
2291      - has both ADM and TLM checks
2292      - works for single- and multi-proc.
2293      - output cleaned
2294      - worked successfully for parallel DIVA
2295    o genmake:
2296      - Adding -platform=SP4
2297      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2298    o Modif. for DIVA:
2299      ctrl_unpack should not be called in intermediate DIVA interval.
2300      (similar thing would apply for active files such as
2301      tbar, sbar, psbar, which should not be reinitialised;
2302      only relevant for ecco-branch)
2303    
2304    checkpoint48h_post
2305    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2306    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2307    o Added SEAICE_initialHEFF to pkg/seaice
2308    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2309    
2310    checkpoint48g_post
2311    --- EOS:
2312    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2313      store total Potential in totPhyHyd for diagnostics & EOS.
2314    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2315    --- Pressure/geopotential gradient:
2316    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2317    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2318      ( changes results of global_ocean_pressure )
2319    o NLFS + z-coord.: add eta*Rho' contribution.
2320    o accurate phiHyd when using interface-W at the middle between 2 centers
2321     ( changes results of ideal_2D_oce )
2322    o includes r* 2nd term in potential gradient.
2323    
2324    checkpoint48f_post
2325    Merging from release1_p12:
2326    o Modifications for using pkg/exf with pkg/seaice
2327      - improved description of the various forcing configurations
2328      - added basic radiation bulk formulae to pkg/exf
2329      - units/sign fix for evap computation in exf_getffields.F
2330      - updated verification/global_with_exf/results/output.txt
2331    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2332      (SBO) core products, including oceanic mass, center-of-mass,
2333      angular, and bottom pressure (see pkg/sbo/README.sbo).
2334    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2335      to avoid negative values in shallow regions.
2336      - updated verification/natl_box/results/output.txt
2337      - updated verification/lab_sea/results/output.txt
2338    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2339    o Added useSingleCpuIO option (see PARAMS.h).
2340    o Updated useSingleCpuIO option in mdsio_writefield.F to
2341      work with multi-field files, e.g., for single-file pickup.
2342    o pkg/seaice:
2343      - bug fix in growth.F: QNET for no shortwave case
2344      - added HeffFile for specifying initial sea-ice thickness
2345      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2346    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2347      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2348    o pkg/seaice:
2349      - adjoint-friendly modifications
2350      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2351    
2352    checkpoint48e_post
2353    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2354    o dynamics: change definition of computational domain & adapt mom_fluxform
2355      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2356    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2357        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2358        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2359        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2360        inverted_barometer solid-body.cs-32x32x1
2361      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2362    
2363    checkpoint48d_post
2364    o in preparation for r*:
2365     a) use pre-computed gradient of hydrostatic potential:
2366        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2367     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2368        => affects results of glob_oce_pressure (different truncation error)  
2369      update output.txt of ideal_2D_oce & global_ocean_pressure
2370    
2371    checkpoint48d_pre
2372    o in preparation for r*:
2373      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2374      pass the 2 comp. of the grad. as arguments to momentum S/R.
2375      but for the moment, only used if it does not change the results.
2376    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2377    
2378    checkpoint48c_post
2379    Modifications in treatment of initial flux forcing controls
2380    to avoid extra storing of flux fields.
2381    
2382    checkpoint48c_pre
2383    o Added tidal_basin_2d experiment (currently 1D!)
2384    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2385    
2386    checkpoint48b_post
2387    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2388     (modification to pressure gradient not yet implemented)
2389    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2390      (for U & V) that are used for vertical advection of momentum.
2391    
2392    checkpoint48a_post
2393    o In preparation for r*, use temp. array to compute vertical transport
2394       in flux-form momentum pkg. => change results of few test-exp.
2395      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2396                        lab_sea, natl_box & plume_on_slope
2397    
2398    checkpoint48
2399    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2400    
2401    checkpoint47j_post
2402    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2403    o moved adexch from forward_step to addummy_in_stepping
2404    o added exch in ctrl_map_...
2405    o aveFreq.=0. at end of cost_final to avoid overwrite in
2406      reverse checkpointing loop
2407    o Yet more changes in gmredi:
2408      * adgmredi_calc_tensor
2409        avoiding all recomputation of gmredi_slope_limit
2410      * adgmredi_x/y/rtransport
2411        added flag for excessive storing to avoid recomp. of
2412        u/v/rtans, dTdx/y/z
2413        -> this is not really necessary and very memory-consuming
2414      * adgmredi_slope_psi:
2415        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2416      * gmredi_slope_limit
2417        re-activated full calculation of taperfct for case 'ac02'
2418    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2419    
2420    checkpoint47i_post
2421    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2422    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2423      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2424    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2425    o gmredi: fix few bugs.
2426    
2427    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2428    This will be a good checkpoint to plug into the ecco-branch.
2429    o few modif.'s to get latest version adjointed
2430      (mainly kick out code in ini_linear_phisurf)
2431    o modif's to run adjoint with exactConserv
2432    o case GM_BOLUS_ADVEC should be cleaned
2433      S/R gmredi_slope_psi should be cleaned
2434    o verification/carbon now has exactConserv=.TRUE.
2435    
2436    checkpoint47g_post
2437    o time-average AIM output: becomes independent from statvars time-average
2438      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2439    o After TAF bug fix:
2440      Tested adjoint of gmredi package.
2441      Tests were done with checkpoint47 rather than with latest
2442      checkpoint47f_post since the latter is broken for the adjoint
2443      verification/carbon/ contains both ADM and TLM gradient checks.
2444    Here they are, before they get changed/lost/stolen.
2445    Mostly modif.'s to fix numerical sensitivities.
2446    Gradient checks OK for
2447    - GM_taper_scheme:
2448      * clipping
2449      * ac02
2450      * linear
2451      * glw91
2452      * dm95
2453      * ldd97
2454    - GMREDI_OPTIONS:
2455      * GM_VISBECK_VARIABLE_K
2456      * GM_NON_UNITY_DIAGONAL
2457      * GM_EXTRA_DIAGONAL
2458      * GM_BOLUS_ADVEC
2459    in conjunction with data.gmredi parameters to be checked in
2460    in a few minutes under verification/carbon/code/
2461    
2462    checkpoint47f_post
2463    Merging from release1_p10:
2464    o modifications for using pkg/exf with pkg/seaice
2465      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2466        and SEAICE_EXTERNAL_FLUXES
2467      - pkg/exf CPP options EXF_READ_EVAP and
2468        EXF_NO_BULK_COMPUTATIONS
2469      - usage examples are Experiments 8 and 9 in
2470        verification/lab_sea/README
2471      - verification/lab_sea default experiment now uses
2472        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2473    
2474    checkpoint47e_post
2475    o created a tag prior to creating a branch
2476    
2477    checkpoint47d_post
2478    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2479      at the bottom boundary had an erroneous half slip boundary condition
2480    o added bottom drag and no slip boundary condition capabilities to
2481      oceanic pressure coordinates code
2482    o added new verification experiment global_ocean_pressure, this experiment is
2483      also described in the tutorial section of the manual
2484    checkpoint47d_pre
2485    
2486    checkpoint47c_post
2487    o Added a verification experiment for a global cubed-sphere ocean run
2488      -  verification/global_ocean.cubed32x32x30
2489      -  uses pkg/therm_seaice and pkg/bulk_forcing
2490    
2491  o allow to run AIM physics with SPEEDY input files (from Franco Molteni)  o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2492  o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)  o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2493    when using P-coordinate; only implemented for atmospheric config.    when using P-coordinate; only implemented for atmospheric config.

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