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revision 1.38 by heimbach, Tue Apr 10 22:35:24 2001 UTC revision 1.792 by heimbach, Tue Apr 17 23:49:41 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/exf:
8      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
9        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
10      - move exf header files from lower_case.h to UPPER_CASE.h ;
11        add missing cvs Header & Name
12      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
13    o pkg/seaice:
14      - remove seaice_exch and seaice_exch_uv
15      - remove superfluous exchange of theta
16      - add myThid to seaice_budget_ocean/ice
17      - add new interface for atmospheric wind forcing (C-grid only)
18        + new routine
19        + two new field (taux, tauy for stress over ice)
20        + removed one global field (DAIRN) for C-grid case only
21    o pkg/thsise
22      - 2nd set of modifs for thsice adjoint in conjunction with exf
23    
24    checkpoint58y_post
25    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
26      vertical diffusivity, similar to that in MOM4; turned on using
27      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
28      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
29    o Added capability for 3D specification of background vertical diffusion
30      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
31      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
32      "data" file that contains the 3D vertical diffusivity coefficients.
33    o ice dynamics (pkg/seaice) with thsice thermodynamics:
34      - add code within pkg thsice to advect & diffuse sea-ice fields
35      similar to (and will replace) what has been added in  seaice_advdiff.F,
36      but: - conserving Mass, Heat & Salt.
37           - better when using non-linear advection scheme (not yet fully tested)
38           - can also be used in atmospheric set-up (for now, only the diffusion).
39    
40    checkpoint58x_post
41    o IO option for global-file compact format:
42      - add options when generating topology (utils/exch2/matlab-topology-generator)
43      - add I/O capability (pkg/mdsio).
44      - adapt utils/matlab/rdmds.m to read this format.
45      for now long-line format not yet supported by pkg/mdsio (& exch2).
46    o shelfice: add a few diagnostics
47    
48    checkpoint58w_post
49    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
50      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
51      (and replace horiVertRatio in NH code).
52      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
53                         and tutorial_plume_on_slope (sensitive to truncation)
54    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
55      directly to drive seaice model (C-grid only)
56    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
57     - reintroduce computation of wind from stress,
58     - compute tau (in exf_bulkformulae.F) from windstress averaged to
59       mass points to avoid tau = 0
60     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
61    o rdmnc.m: make it work with "global" files created with gluemnc
62    o rdmnc.m : some improvements in dealing with singleton dimension
63      (tested on all testreport mnc output files).
64    o genmake2: disable pkg/profiles if netcdf test fails.
65    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
66    o move call to cal_readparms up to make calendar parameters/variable available
67      to all packages
68    
69    checkpoint58v_post
70    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
71      useDynP_inEos_Zc tested.
72    o pkg/exf: changes to properly interpolate/mask/scale initial fields
73    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
74      and portions thereof.  See read_cs.txt for description and examples.
75    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
76      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
77      following the great-circle arc between those 2 points.
78    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
79      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
80    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
81     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
82     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
83     - still needs work (not working with some options ; efficiency to improve)
84       and serious testing.
85     - use this scheme for temperature & salinity in 2 advection test exp.:
86       advect_xy & advect_xz, respectively.
87    
88    checkpoint58u_post
89    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
90    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
91    o testreport: add option "-skipdir" to skip some test.
92    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
93      momentum calculation.
94    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
95    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
96      remove checkpoint.F and the_correction_step.F (no longer used);
97      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
98    o add option (linFSConserveTr) to correct for tracer source/sink due to
99      Linear Free surface
100    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
101    o pkg/thsice: fix reading mnc-pickups
102    
103    checkpoint58t_post
104    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
105    o pkg/mdsio:
106     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
107       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
108       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
109     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
110     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
111       either MDS_READ_FIELD or MDS_WRITE_FIELD )
112     - new S/R (to replace MDSWRITEMETA), which allows to write more
113       informations (variable names, time ...) to meta files.
114     - modify rdmds.m to give back the meta file content.
115    o pkg/diagnostics: change vertical interpolation to be safer, and more
116       flexible (define p-levels to interpolate to in data.diagnostics);
117      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
118       diagnostic pointer.
119    o pkg/seaice: more cleaning up of seaice_growth, added many comments
120    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
121    o fix multi-category seaice:
122     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
123       SEAICE_MULTICATEGORY
124     - fix short wave heat flux
125    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
126       and allow to use EVP solver. Change forward lab_sea: test both EVP
127       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
128    o Initial check-in of lab_sea adjoint
129      (very similar to natl_box_adjoint/code_seaice)
130      * used C-grid and EVP solver
131      * used KPP, GM/Redi
132      * uses inAdExact=.TRUE.
133      * gradient checks fail for both ADM and TLM
134        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
135        f.d. gradients actually seem more problematic than ADM, TLM gradients;
136        issue is related to forward mismatch between g77 an ifort
137    o pkg/seaice: overhaul of thermodynamics
138     - growth.F and groatb.F are replaced by new routine seaice_growth.F
139     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
140     - move a few global fields out of SEAICE.h into seaice_growth.F and
141       make them 2D (FICE/QNETO/ ...)
142     - remove FO (it is the same as QNETO)
143     - introduce a few local fields to avoid modifying external fields such
144       as atemp, etc.
145    
146    checkpoint58s_post
147    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
148      changed exf_set_gen.F so that
149        genperiod=0 means input file is one time-constant field and
150        genperiod=-12 means input file contains 12 monthly means
151    o CG2D: use pre-computed solver main-diagonal (stored in common block);
152      this affects truncation error ; generate new output file for exp. which
153      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
154        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
155        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
156        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
157        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
158        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
159    o start implementation of deep-atmosphere and anelastic formulation
160    o verification: remove 2nd copy of input files and use script "prepare_run"
161      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
162    o mom_common/vecinv/fluxform: fix a few initialisation isssues
163    o profiles: fix for multithreaded case
164    
165    o diagnostics: rename few diags:
166      s/'PRESSURE'/'RCENTER '/g
167      s/'TICE    '/'oceFreez'/g
168      s/'TAUX    '/'oceTAUX '/g
169      s/'TAUY    '/'oceTAUY '/g
170      s/'SWFLUX  '/'oceQsw  '/g
171      s/DIFx/DFxE/g
172      s/DIFy/DFyE/g
173      and add few ocean-forcing diagnostics:
174      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
175    o modifications to pkg/seaice/growth.F and budget.F, which change results of
176      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
177      as actual snow thickness.  It now refers everywhere to effective snow
178      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
179    
180    checkpoint58r_post
181    o modifications to pkg/seaice/growth.F, which change results of
182      lab_sea experiment: fixes pertain to melting snow over open water, to
183      masking EVAP under sea ice, and to using the correct AREA variable for
184      computations of EVAP, PRECIP, HSNOW, and GHEFF
185    o add ability to read bathy, salt, and theta using MNC (off by def)
186    o add flooding algorithm and advection of HSNOW for pkg/seaice;
187      both are turned off by default and do no change any results
188    o seaice advection with pkg/thsice: a step toward the use of non-linear
189      advection scheme, but #ifdef or commented out for now (requires more EXCH).
190    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
191      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
192      in natl_box (affects results @ truncation level: update output.txt)
193    o multi-threading and IO:
194      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
195      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
196        (needed to work with SingleCpuIO): tested in all verif. exp.
197    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
198      affects the results (but none of the verification test uses this scheme).
199    o Adding some pkg/diagnostics capability to pkg/seaice
200      (will certainly be subject to changes)
201    o ctrl: adding new control variables:
202      lwflux, lwdown, evap, snowprecip, apressure, runoff
203    
204    checkpoint58q_post
205    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
206      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
207      high_res_cube configuration by 4% on Columbia.
208    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
209      add (in global_with_exf/code) a version of EXF_INTERP_READ without
210      dynamical allocation (seems to work in multi-threaded).
211    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
212      single CPU io) so that TAF does not have to see EESUPPORT.h
213    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
214    
215    checkpoint58p_post
216    o obcs: stop if obcs is used with useCDscheme = .true.
217    o shelfice:
218     - fix a sign error so that no slip at shelfice interface works
219     - remove stop for combination non-hydrostatic code and shelfice. That does
220       not mean, that the results are correct, but at least they are numerically
221       stable
222    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
223    o added adjoint exch routined for all exch*3d* routines
224      and updated flow directives
225    
226    checkpoint58o_post
227    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
228      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
229    o change controling S/R for writing pickup file (new S/R do_write_pickup)
230      and clean-up reading/writing of pickup files.
231    o fix local version of read/write pickup (NH part) in rotating_tank/code
232    o simplify EXCH interface:
233     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
234     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
235    o added the regrid package
236    o shelfice:
237     - add a simple boundary layer scheme to reduce noise
238     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
239    
240    checkpoint58n_post
241    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
242       local variable (not in common block).
243    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
244      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
245      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
246        to work with SingleCpuIO.
247    o add "_d 0" to real constant of pkg/cfc subroutines ;
248       update exp. cfc_exemple & tutorial_cfc_offline output files.
249    o multi-threading and IO:
250      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
251        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
252      - barrier before and after reading.
253      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
254      - avoid using MDS_WRITELOCAL for LAND pkg output.
255      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
256        common-block variables ; Allows multi-threading with master-thread IO.
257    o change default MAX_NO_THREADS from 32 to 4 ;
258      and stop cleanly when MAX_NO_THREADS is too small.
259    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
260    
261    checkpoint58m_post
262    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
263       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
264    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
265       keep global_ocean.90x40x15 (for AD testing) with former secondary test
266       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
267    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
268        add MITgcm_tutorials (= code + all the tutorials)
269    o ecco, option to compute cost for total ssh (mean+anom)
270    o consistent with addition of ptracer and ssh in pkg/profiles
271    o profiles: adding ptracer and ssh
272    o testreport: change multi-test output-file name
273      (from output.txt.{name} to output.{name}.txt)
274    o profiles: now ok for mutli-tiles case
275    o seaice: add 4 parameters for different advection schemes for area,
276      (effective) seaice thickness, enthalphy, and snow height. Their default
277      is the standard parameter SEAICEadvScheme
278    o calc_gw:
279     - add cosFacU in zonal viscous flux (harmonic.visc.).
280     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
281       of tutorial_plume_on_slope.
282    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
283    o calc_gw: true flux-form, account for horizontal grid spacing.
284      update rotating_tank results, but not plume_on_slope (affected at
285      truncation level, 11 digits).
286    
287    checkpoint58l_post
288    o calc_gw:
289     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
290     - remove side-drag for now (need to fix it); update plume_on_slope results.
291     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
292    o commit code to make SST/SSS weights spatially variable
293      (based on either variable in-situ or variable initial T/S weights)
294    o pkg/ecco:
295      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
296        now based on horizontally varying weights wthetaLev, wsaltLev
297      * cost_averagesflags now returns year indices in addition to day, month
298      * sflux balance is performed on annual basis
299        (sflxumm, sfluxmm2, bal_sfluxmm)
300      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
301        including separate counting and multipliers
302    o pkg/rbcs
303      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
304    
305    checkpoint58k_post
306    o testreport:
307     - always build in dir. "build" (if not there, mkdir build instead of building
308       & running in input)
309     - run in dir run (if it exists), in build otherwise.
310     - call prepare_run (if input/prepare_run exists)
311     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
312    o pkg/exf modifications to interpolation and rotation routines for more
313       reasonable treatment of North Pole singularity: for tracers North Pole
314       value is set to northernmost zonal-mean value, for zonal velocity it is
315       set to zero, and for meridional velocity it is set to northernmost value.
316    o pkg/exf/exf_check_range.F
317     - add tile index to diagnostics and move stop statement to the very
318       end of the routine.
319    o pkg/diagnostics: (diagnostics_main_init.F)
320      define title of isomorphic variables according to the current config.
321    o pkg/thsice with pkg/seaice dynamics:
322    - fix domain of computation (interior only, required for exf) and do exchanges
323    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
324    o towards a standard way of dealing with multi-threading in MONITOR
325      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
326    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
327       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
328    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
329    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
330    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
331       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
332    o tracer advection:
333     - clean-up and simplify calc_common_factors.F
334     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
335       advection subroutine (but still not used within DST advection S/R)
336    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
337    
338    checkpoint58j_post
339    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
340      from file (collects calls previously in FORWARD_STEP)
341    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
342    o adjoint store dir. adjusted accordingly
343    o genmake2
344      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
345    
346    checkpoint58i_post
347    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
348      on wind stress (SEAICEstressFactor defaults to 1.)
349    o Total number of Timers is finite (<=40): comment out 2 non-essential one
350      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
351    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
352      on CS-grid: no longer loosing mass.
353    o exf & curvilinear-grid: no longer modify longitude xC & xG.
354    o pkg/ggl90: fix sloppy output and fix a bug
355    o pkg/seaice: added SEAICEuseEVPpickup parameter
356      - Set to false in order to start EVP solver with
357        non-EVP pickup files when using SEAICEuseEVP
358      - fix sign error in diffusion in seaice_calc_rhs
359    
360    checkpoint58h_post
361    * Modifications for bottom topography control
362      o replace hFacC by _hFacC at various places
363      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
364      o add non-self-adjoint cg2d_nsa
365      o update autodiff support routines
366      o re-initialise hfac after ctrl_depth_ini
367      o works for 5x5 box, doesnt work for global_ocean.90x40x15
368    * Adding verification for 5x5 box (4-layer) bottom topography control
369    
370    checkpoint58g_post
371    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
372       used for mean seasonal cycle, mean diurnal cycle); add an example
373       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
374    o pkg/ggl90:
375      - add parameter (minimum surface kinetic energy)
376      - fix bug (avoiding division by zero)
377    o couple pkg/thsice to pkg/seaice:
378      - modify advection in seaice to accomodate new scalar fields to be advected
379      - only muliDimAdection scheme work with seaice/thsice
380      - mapping of thsice-variables to seaice-variables, back and forth
381      - does not break the verification experiments, but does not give the
382        desired results either
383    o pkg/seaice
384      - make (default) second order advection a bit less confusing?
385    
386    checkpoint58f_post
387    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
388      to pkg/seaice):
389      - new routines thsice_map_exf and thsice_get_exf provide the interface
390      - add an additional formal parameter to thsice_solve4temp
391    o pkg/exf:
392      - add new fields wspeed, snowprecip (to be able to couple to thsice)
393      - correct Stefan-Boltzmann constant
394      - new parameter for longwave surface emittance
395      - separate some stuff from exf_bulkformulae into new routines  
396        exf_radiation, exf_wind
397      - add new parameters and constants: longwave emissivity for ocean, ice
398        and snow, evaporation parameters over ice
399      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
400        either wind from stress or stress from wind
401    o pkg/thSIce:
402    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
403    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
404       and THSICE_CALC_THICKN
405    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
406    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
407      to make debugging easier.
408    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
409    o pkg/bulk_force:
410      - clean-up comments and parameters ;
411      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
412    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
413      generate new output for test-experiment: aim.5l_cs.thSI
414    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
415      testreport accordingly
416    
417    checkpoint58e_post
418    o SEAICE_CGRID adjoint done
419    o R_STAR adjoint implemented.
420      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
421      * need to sort out init. of h0facc, etc.
422    o Make pkg/profile fully independent of ecco,cost, etc. stuff
423      to be able to use it in pure forward.
424    
425    checkpoint58d_post
426    o upgrade simple test-experiment to tutorial example:
427     step.1: duplicate the experiment and (step.2) will remove the old copy.
428      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
429      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
430      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
431      tutorial_global_oce_biogeo    <- copy of dic_example
432      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
433      tutorial_plume_on_slope       <- copy of plume_on_slope
434      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
435      tutorial_global_oce_optim     <- empty for now (David ?)
436      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
437     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
438    o correct a sign problem in cost_scat.F
439    o obcs and ptracers: fix boundary conditions for advections schemes
440      with larger stencil
441    o thsice adjoint: start
442    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
443      completeness
444    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
445      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
446    o ptracers adjoint:
447      * avoid extensive recomputatations
448      * fix missing re-init. of gptr (missed by TAF)
449    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
450      me to turn off the excessive output to STDOUT that this package produces
451    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
452      and add those terms in Vector-Invariant formulation.
453    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
454      if the control period (xx_hfluxperiod etc) is 0
455    o in profiles pkg, clean routines and fix details
456    o in ecco pkg, reading ssh data:
457      fix problem in case the model does not start at iter0=0
458    o fix mnc-pickup/restart for ptracers
459    o new package prifiles:
460      code to compute profile-based cost by Gael Forget
461      (modifs in ecco, ctrl, autodiff)
462    o Benign bug fix in initialization (spotted by M. Mazloff) of
463      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
464    
465    checkpoint58c_post
466    o adjoint: finish NLFS adjoint and provide reference output in
467      verification/global_ocean.90x40x15/results_ad_nlfs
468    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
469      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
470      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
471      with SEAICE_CGRID defined.
472    o move calendarDumps from "data" to "data.cal" and clean-up the code
473      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
474    o add useEXF & useCAL flags (for now, set in hard-coded way)
475    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
476      (were missing in NH mode, and wrong in quasihydrostatic mode).
477      waiting for Chris updated version of calc_gw to add those CALLs.
478    o fix bug in quasihydrostatic S/R ;
479      add a test for this option: global_ocean.90x40x15.qshyd
480    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
481      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
482    o add on/off flag useOffLine for package OFFLINE
483    o seaice:
484      - modify advection so that it works also on the C-grid
485      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
486        problem in multi-tile runs with C-grid
487      - add flags for clipping ice velocities and/or masking solver forcing
488      - fix drag (ocean on ice) formulation and a bug that caused noise in the
489        C-grid solver
490      - added a few comments to seaice_diffusion.F
491      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
492        are now exclusive)
493      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
494        required re-ordering the code a little:
495       + make DAIRN global variable (defined in SEAICE)
496       + move computation of the viscosities eta and zeta into a new separate
497         routine (because I need to recompute them in seaice_ocean_stress.F)
498    
499    checkpoint58b_post
500    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
501      update output.txt of exp. aim.5l_cs.thSI
502    o various mnc cleanups and improvements:
503      + shrink lookup tables by factor of ~4
504      + better error reporting when running out of lookup space
505      + able to handle longer path/file names (up to 500 chars)
506    o adjoint:
507      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
508      - TBD: "hidden" mom_vecinv recomp. in dynamics
509    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
510     (allow to differentiate between forcing components using new integer flags:
511      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
512     and add new flag to put Dissipation tendency out of Adams-Bashforth.
513    o ecco
514      - enable trend removal from SSH anomaly obs.
515    o adjoint
516      - a fix for PmEpR when #undef EXACT_CONSERV
517      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
518      - try to fix "hidden" recomp. in forward_step for NLFS
519        (NLFS seems broken sometimes after I checked it in)
520    o seaice:
521     - add c-grid version of the dynamic solver:
522       + three new routines that are the c-grid substitute lsr, dynsolver
523         and ostres
524       + put a few fields that were local to dynsolver into global common
525         blocks, so that I can move the computation of stresses etc into
526         seaice_lsr (saves coding but may break the adjoint).
527     - replace more hardwired parameters by runtime parameters
528     - add ice masks that mask the rhs of the implicit solvers where there
529       is no ice (commented out in seaice_dynsolver, because i am not sure
530       if this works properly), eventually this should replace the clipping
531       of ice velocities in seaice_dynsolver to +/-40cm/s.
532    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
533      include it only where its needed
534    o move balancing of fluxes before the call of external_forcing_surf
535    o seaice:
536      - correct units of turning angles (now they are really in degrees)
537      - move computation of GWATX/Y out of main routine into dynsolver
538      - initialize GWATX/Y in seaice_init
539    o Apply mask on Fresh-Water flux (needed for SSH forcing).
540      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
541    o seaice: add runtime flags for turning angles (default to zero)
542    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
543      and trend from exf forcing and ctrl control adjustments
544    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
545      (since checkpoint57x_post)
546    o change the default rotation period to 86164.s = the Earth rotation
547    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
548      and based on a reference stratification. Tested within hs94.cs-32x32x5.
549    o seaice advection: add code for choosing between the default (2nd order
550      central differences) and multiDim advection schemes provided by
551      pkg/generic_advdiff
552    o seaice:
553      - removed all references to SEAICE_GRID.h fields from
554        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
555        (cubed-sphere configuration will change a little)
556      - grid computations in seaice_init are obsolete now.
557      - cleaned up code a little so that is easier to read (hopefully).
558      - added new (better?) discretizations of default advection and diffusion
559        (turn on with SEAICEuseFluxForm)
560      - replace 1 in 3d global fields by kSurface in growth.F
561      
562    checkpoint58a_post
563    o seaice:
564      - bug fix in advect.F
565    o shelfice:
566      - separate shelfice load anomaly from pload (breaks with time
567        dependent forcing), => introduce constant field shelficeLoadAnomaly.
568        Its default is 0., but it may be computed more cleverly from (unknown)
569        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
570        done offline. A good approximation of the pressure load anomaly is
571        necessary to avoid large initial adjustment processes underneath
572        deep-reaching shelfice.
573      - small fix in ISOMIP shelfice_thermodynamics
574      - add more sophisticated thermodynamics of Hellmer (1989), this is
575        now the default
576      - give a few constants more intuitive names
577    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
578      if bulk formulae are used in long integration (especially EmPmR). Turn
579      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
580      if balancePrintMean, the imbalance that is substracted is printed to
581      STDOUT.
582    o fix bug (typo) in obcs_apply_eta.F
583    o add a new package shelfice which enables us to model the circulation
584      underneath shelf-ice with draughts of hundreds of meters.
585     - works
586     - to do: + include improved thermodynamics
587              + check whether kSurfC (from model/inc/SURFACE.h) can be used
588                instead of new field kTopC
589              + can we use topoFile, Ro_surf and existing code in ini_depth.F
590                instead of new field R_shelfIce and new code in ini_depth.F
591                and ini_mask_etc.F?
592              + adjust vertical mixing schemes?
593    o seaice pkg:
594     - add a cpp-flag to include a simple formula for a salinity dependent
595       freezing point of sea water at the surface
596     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
597       meridional stresses are now different (and hopefully correct)
598    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
599       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
600       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
601    o pkg/diagnostics: add options and parameters for regional-statistics
602       diagnostics ; define regions by reading a region-mask from a file
603       (might add other options later)
604    o pkg/bulk_force:
605     - add option and parameters to use AIM surface-flux formulae.
606     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
607       others forcing fields (defined in PARM05, parameter file "data") are loaded
608       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
609     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
610     - use the right EXCH call for uwind,vwind (to work on CS-grid).
611     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
612       and parameters (note: calcWindStress replaces .NOT.readwindstress).
613     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
614    
615    checkpoint58
616    o add "--embed-source" option to genmake2 which, when the supporting
617      tools can be compiled (as determined by genmake2) will turn on the
618      embed_files package which then embeds the entire MITgcm source code
619      (*.[fFhc] + Makefile) used for the build within the executable
620      - requested by CNH but off by default
621      - adds a paltry <9MB to the mitgcmuv executable in most cases
622      - only writes the output when useEMBEDSRC in eedata is true
623    o clean up 3-dim. relaxation codes:
624      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
625      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
626      * Thanks to Tom Haine for testing!
627    
628    checkpoint57z_post
629    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
630      affects output (@ truncation level) of exp. plume_on_slope ; updated.
631    o fix the pickup behavior for obcs in combination with ptracers
632    o fix a bug in ptracers_external_fields_load
633    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
634      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
635    o transfered surface NH pressure to eta field (if exactConserv).
636    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
637         and update lab_sea output.txt file.
638    o completing 3-dim. relaxation code: additional term
639         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
640      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
641      * At compile time, in "EXF_OPTIONS.h" set
642          #define  ALLOW_CLIMTEMP_RELAXATION
643          #define  ALLOW_CLIMSALT_RELAXATION
644      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
645          tauThetaClimRelax3Dim = 15552000.0,
646          tauSaltClimRelax3Dim  = 15552000.0,
647      * 3 cases:
648          1) Use a constant-in-time 3-dim. field
649          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
650          3) Real-time relax. to time-evolving prescribed field
651    o Adding Laplacian-type smoothness constraint on
652      initial and boundary (forcing) controls (ic, bc)
653      * enable at compile-time via
654        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
655      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
656      * Absolute scale somewhat unclear so far
657      * no area weighting was included since no other cost term does so far
658    
659    checkpoint57y_post
660    First step for a NLFS adjoint
661    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
662    o new init. routines for calc_r_star, calc_surf_dr
663    o still need to deal with ini_masks_etc
664    o testreport seemed happy
665    checkpoint57y_pre
666    
667    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
668    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
669    o add new offset feature to offline pkg (plus minor cleanup)
670    o cfc fixes for final year of integration
671    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
672      be in GCHEM_OPTIONS).
673    
674    checkpoint57x_post
675    o fix testreport Pb in multiple test experiment.
676    o cleanup our namelist syntax in verification:
677      - make it more F95 standards compliant (some work still needed)
678      - allows the vast majority of our tests to work with gfortran
679    o Non-Hydrostatic:
680     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
681     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
682    o Allow to apply AB on T,S rather than on AB(gT,gS):
683     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
684     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
685       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
686     - need a "clever" read_pickup to restart from the other AB formulation
687    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
688    o remove some unused variables (reduces number of compiler warnings)
689    o adjoint
690      * Disable useVariableViscosity for adjoint for time being
691        (there are a number of extensive recomputations)
692      * Initialize certain variables needed for adjoint
693    
694    checkpoint57w_post
695    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
696                 fix the singleCpuIO RS version of MDSWRITEFIELD
697       and add a WARNING if using globalFiles=T with multi-processors.
698    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
699      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
700    o tracer advection scheme:
701      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
702       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
703       was not very convenient).
704      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
705       (further tests needed for the implicit DST & Flux-Limiter schemes).
706    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
707      and sRef for convenience, handy, when you want to initialize
708      ptracers in a large domain with a constant non-zero value. Also,
709      untangle ptracers_init.F a little.
710    
711    checkpoint57v_post
712    o change dome exp. to use variable viscosity in side-drag terms.
713    o remove all the files from the cfc_offline test since they are now
714      incorporated into tutorial_cfc_offline which has been producing
715      identical results for a few days of testing
716    o add new parameter: sideDragFactor to enable half-slip-side BC
717      and change side-drag S/R to use viscosity from mom_calc_visc
718      (can switch back by setting sideDragFactor=0.); affects results at
719      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
720       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
721    o vorticity & strain are now computed without masking, to account for
722      no-slip-side BC in variable viscosity calculation ; mask is applied
723      anyway later on, before computing advection/coriolis terms.
724    o modify exp4 to test new obcs support for reading from external files
725      and for passive tracers
726    o fix behavior of ptracers_monitor when monitor output is written to a
727      netcdf-file; still not independent of monitor.F (writes in the same
728      file).
729    o change default value of tRef (put a uniform, meaningful value for ocean
730      & atmos) and initialize sRef (was missing, as Martin mentioned).
731    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
732      to be proportional to enstrophy dissipation length.  Thus,
733       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
734      This is now consistent with Smagorinsky and with the manual.
735    
736    checkpoint57u_post
737    o OBCS and PTRACERS: add open boundary support for passive tracers
738      - either use homogenous (pseudo) v.Neumann conditions or prescribe
739        OB-values from file; this is not different from the way theta and salinity
740        are treated
741      - however, Orlanski-radiation conditions are not supported, and the model
742        will stop if you use pTracers and Orlanski at the same time.
743      - beefed up the rountine obcs_external_fields_load: now only those open
744        boundary values are overwritten with values from files for which there
745        are really files, otherwise the OB-fields remain untouched. This makes
746        it possible to use different OBs at different ends of the domain (as
747        with EXF)
748    o reduce number of exch calls in shap_filt (s2).
749    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
750      truncation level) 4/5 MLAdjust test results (11&12 digits match).
751    
752    checkpoint57t_post
753    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
754    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
755      same truncation, independent of the face number: affects affects several
756      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
757    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
758      note that biharmonic viscosity + no-slip was not tested in any experiment.
759    o fix bug in non-linear free-surf side-drag ; generate new output for
760      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
761    o make mnc honor the writeBinaryPrec flag for most kinds of output
762    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
763    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
764      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
765    o add brackets in multi-terms sum to get same truncation, independent of
766      the face number (manage to get exactly same value of gU,gV at the cs-edge)
767      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
768    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
769      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
770      a maximum grid-scale Reynolds number.  Also, changes all length calculations
771      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
772      Suggested values of viscosity parameters found in mom_calc_visc.
773      Many new viscosity diagnostics available.
774    
775    checkpoint57s_post
776    o Add clearing-house for viscosity calculations, mom_calc_visc and
777      correct numerous bugs in LeithD and Smagorinsky discretizations.  
778      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
779      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
780      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
781      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
782      The Strain-Tension form is now called with useStrainTensonVisc=.true.
783      ViscAhStrain and viscAhTension are now retired.
784    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
785    o In response to JMC's bug report, genmake2 now ignores any soft-links
786      that it finds in the *current* directory when searching for files.
787      Soft-links found in any other source directories will still work as
788      they did before.
789    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
790      a C routine to unlimit the stack size
791    o mnc-ify pkg/aim snapshot vars
792    o mnc-ify pkg/land as requested by Daniel
793    o various changes to mnc including:
794      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
795      - output can now be grouped so that all files within a group
796          change the ITER portion of their names in lock-step together
797      - can now read ("global") PER-FACE (in addition to PER-TILE) files
798          and works with both EXCH1 and EXCH2 (but needs more testing)
799      - writing works for all verification test cases w/ g77 on Linux
800    
801    checkpoint57r_post
802    o make MNC variable initialization happen earlier
803    o add diagnostics for (almost) each term of the momentum Eq.
804    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
805    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
806    o remove MINIMAL_TAVE_OUTPUT option ;
807      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
808    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
809      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
810    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
811    o add time-dependent SST, SSS control
812    o cost terms in ecco/ modularized (new cost_generic.F)
813    o cost_averages routines are modularized (new cost_averagesgeneric.F)
814    o new infrastructure for seaice model vs. obs misfits in seaice/
815      * driver from the_main_loop.F is seaice_cost_driver.F
816      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
817      * gradient check in Exp. 6a of natl_box_adjoint/
818    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
819      (see README file)
820    
821    checkpoint57q_post
822    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
823    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
824      - bug was reported by Jean-Michel and Ian Fenty
825    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
826      update exp. cpl_aim+ocn output.
827    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
828      Needed for high-res. runs with large global files
829      to be able to limit tapelev size
830    o Changed some tests for adjoint:
831      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
832      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
833      * global_ocean.90x40x15/ back to default 3-level checkpointing
834    o Modifications to enable scripted COMMON to MODULE conversion
835      * verification/OpenAD/code/ has necessary scripts and description;
836      * converts, compiles and runs successfully;
837    
838    checkpoint57p_post
839    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
840    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
841      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
842    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
843    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
844      (was already the case for dissipation with mom_vecinv,
845       and also the case for grad.PhiHyd when staggered-timeStep)
846      This will allow to put dissipation out-off the AB time-stepping.
847     Unfortunately, affects truncation error. Update output of exp. that "fails"
848      (cg2d matching number) and leave the others for later: front_relax(10),
849      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
850      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
851    
852    checkpoint57o_post
853    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
854      (2) its ready to be documented during the 20050801 DocFest
855    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
856      for ideal_2D_oce and lab_sea on linux_ia32_g77
857    o set to #undef CTRL_SET_OLD_MAXCVARS_30
858      in global1x1_tot/code_seaice_adj to access indices 32, 33
859      (worth another tag)
860    
861    checkpoint57n_post
862    o adding precip control xx_precip 32
863    o adding swflux control xx_swflux 33
864    o Replacing 10 forcing penalty cost routines by 1 generic.
865    o Implementing partitioning in time-mean and variable adjustment
866      for atmos. state.
867    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
868    o in natl_box_adjoint:
869      * updated exp 1 to 10
870        (but does not have time-mean vs. variable split results yet)
871    o updated global1x1/*_seaice_adj/
872      to incorporate latest changes
873    o enable useSingleCpuIO for mdsio vector routines
874      (applies in particular to tapelev I/O)
875    o removed inefficient K-loop in all active_file*control*.F
876    
877    checkpoint57m_post
878    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
879      and advect_cs (use EXCH-2 and standard cs-32 grid files).
880    o pkg/exch2: filling of face-corner halo regions is optional
881      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
882    
883    checkpoint57l_post
884     tag before updating tutorials (pre-release-2)
885    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
886       for output and interpolation of input fields onto model grid)
887    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
888       Affects results of exp. rotating_tank ; update output.txt.
889    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
890          and taking the square quantity and/or using a fraction-weight field.
891    o fix aim_diagnostics_init.F mate numbers.
892    o add mnc output capability to diagnostics/diagstat and update
893      our cvsignore files for the ACSII output generated
894    
895    checkpoint57k_post
896    o lab_sea now uses diagnostics package and provides a suite of
897      new EXF diagnostics output.
898    
899    checkpoint57j_post
900    o exf
901      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
902        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
903        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
904      * extended diagnostics output
905        - now includes all EXF variables
906        - hs, hl moved to common block
907        - separate S/R for diagnostics, called after ctrl vector is added
908        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
909        - EXFqnet contains true Qnet (i.e. includes qsw)
910      * updated verif. lab_sea, global_with_exf
911      * Rearranging hflux (exf_mapfields -> exf_getforcing)
912        to ensure that diagnostics sees a true EXFqnet
913    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
914    o diagnostics pkg: change pointers so that 1 diagnostic can be used
915      several times with different frequencies.
916    o mnc-ify the thsice package as requested by Daniel Enderton
917      - the monitor--MNC output needs work
918      - many attributes need to be added (most are currently blank)
919    o mnc-ify theaim_v23 package as requested by Daniel Enderton
920      - many attributes need to be added (most are currently blank)
921    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
922    o add Sadourny like discretization to the 4th.O vorticity advection scheme
923    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
924      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
925         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
926    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
927     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
928    
929    checkpoint57i_post
930    o Diagnostics package was changed: diagnostic allocation is now deactivated
931      by setting an empty file name in the namelist (used to be by setting 0 frequency)
932    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
933      add 1rst Order upwind vertical Shear.
934    o add a quick fix for A/B checkpointing in OFFLINE mode
935    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
936      end-run around the C/Fortran linking horror in eesup/src/timers.F
937    o added pkg/runclock: allows user to terminate run based on wall clock
938    o added non-hydrostatic scaling parameter: nh_am2
939    o pkg/my82: futile attempt to make results compiler-independent by adding
940      some "_d 0", etc. no effect.
941    o for mnc output, fill the 'T' coordinate var with myTime and create a
942      separate 'iter' variable for iteration count
943    o pkg/diagnostics:
944      add new capability: output of Global/Regional & per-level statistics ;
945      tested against monitor output (including land & thSIce) on various exp.
946    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
947    
948    checkpoint57h_done
949      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
950      data.diagnostics, data.gchem, data.ptracers) is done.
951    
952    o pkg/diagnostics: prepare for Global/Regional statistics.
953      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
954    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
955      and rename it: DIFFERENT_MULTIPLE
956    
957    checkpoint57h_post
958    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
959    o pkg/diagnostics: change output frequency, now in seconds (instead
960      of Nb of iterations). This requires to change data.diagnostics.
961    checkpoint57h_pre
962    
963    o in mnc, let the user create the output dir if both mnc_outdir_date
964      and mnc_outdir_num are false
965    o add fflags() to pkg/diagnostics which allows one to specify, on a
966      per-file basis, the file precision [default behavior is unchanged]
967    o added diagnostics to pkg/kpp, including computation of mixed layer
968      depth based on a temperature/density criterion
969    o updated verification/natl_box to test the new pkg/kpp diagnostics
970    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
971    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
972    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
973      not mnc -- this mistake was found by JMC and is now corrected
974    
975    checkpoint57g_post
976    o add Adams-Bashforth 3rd Order time stepping:
977      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
978      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
979    checkpoint57g_pre
980    
981    o make lambda[Theta,Salt]ClimRelax spatially varying
982      (default remains spatially uniform constant based on tau)
983    o added new control variables
984      * init. uVel, vVel, etanN
985      * lambda[Theta,Salt]ClimRelax
986    o separate masks used for ctrl_pack/unpack 'from write_grid' output
987      (suggested by G. Forget)
988    
989    checkpoint57f_post
990    o add parameter "baseTime" = model base time = time at iteration zero
991      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
992      account for baseTime shift
993    o move Coriolis arrays from PARAMS.h to GRID.h
994    checkpoint57f_pre
995    
996    o mnc-ifying the seaice package
997    o introduced an alternative length scale calculation for use in the limiting
998      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
999    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1000    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1001      as well as grad(vort3).  Made it compatible with both approximate form
1002      for the cubed sphere and full form of these gradients.  Added flag
1003      useFullLeith to select between approximate and full form.  
1004    o add "d0" in getcon.F to reduce differences between compilers/platforms
1005      update output.txt of exp. fizhi-gridalt-hs
1006    o change port_rand funtion to allow to set the seed.
1007    o fix obscure MNC bug involving conversion between reals and integers
1008      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1009        new version is now more standards-compliant
1010    o adjoint-related modifications
1011      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1012      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1013      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1014    
1015    checkpoint57e_post
1016    o Adding eddy stress controls a la Ferreira et al.
1017    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1018    
1019    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1020      update output.txt of exp. fizhi-gridalt-hs
1021    o add more "Z" dimensions and associated coordinate vars to MNC
1022    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1023    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1024      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1025      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1026      months and years.  Requires pkg/cal.
1027    o diagnostics: add pickup functionality
1028      - off by default for backwards compatibility
1029      - current version only uses MDSIO -- MNC will be added
1030    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1031    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1032    
1033    checkpoint57d_post
1034    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1035    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1036      output from the diagnostics package
1037    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1038    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1039      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1040    o add coordinate variables to the MNC output from the diagnostics package
1041    o change MNC-flags default value: true when useMNC=TRUE
1042    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1043      the ability (off by default) to read the grid information using MNC
1044    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1045    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1046    o do snap-shot diagnostics at the middle of the time-interval (instead of
1047      at the end).
1048    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1049      new test for AIM with thSIce + slab-ocean
1050    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1051    o move state variable diagnostics to the beginning of the time step ;
1052      (note: still needs some work specially for snap-shot diagnostics)
1053      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1054    
1055    checkpoint57c_post
1056    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1057    o generate new output.txt files on faulks with g77 & the new -ieee option
1058    checkpoint57c_pre
1059    
1060    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1061      update output.txt of exp. global_ocean.90x40x15
1062    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1063      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1064    o add saltFlux(+File) forcing capability with periodicExternalForcing
1065    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1066    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1067    o improvements for the MNC output from DIAGNOSTICS:
1068      - correct handling of the unlimitied dimension
1069      - all dims now have associated coordinate variables
1070      - variables located at U, V, and Corner ("Z") points are now written
1071        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1072        *all* data points are output
1073    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1074    o added pkg/seaice/seaice_monitor.F
1075    o mdsio_readfield.F can now read files visible only to master MPI process.
1076    o pkg/seaice: some test code for ice-modified ocean stress
1077    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1078      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1079      spurious negative numbers for precipitation and humidity.  Will cause
1080      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1081    o pkg/ctrl/
1082      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1083        May be enabled via doPackDiag
1084      *  introduce z-scaling of
1085         + gradient (doZscalePack) and
1086         + control (doZscaleUnpack)
1087    o pkg/mdsio/
1088      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1089      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1090    
1091    checkpoint57b_post
1092    o simplify options in diagnostics_fill arguments (remove weird combinations)
1093    o fix MNC coordinate variables so that they now contain per-face index
1094      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1095      general, EXCH2 grids are only aligned to a "local" coordinate system
1096    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1097    o Implement instantaneous output within pkg diagnostics:
1098      setting a negative frequency in data.diagnostics produces
1099     "snap-shot" output (as opposed to time-average if freq > 0)
1100    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1101      NOTE: change ptracer diagnostics name: use 2 characters to work with
1102            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1103    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1104      becomes the coordinate variable for the 'T' dimension
1105    o add CF-style coordinate variables to MNC
1106      - just a first cut:  numbers are meaningless on the cubesphere and
1107        missing along the T axis but otherwise it works!
1108    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1109    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1110    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1111      this is based directly on what the model compute, so that the content of
1112      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1113    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1114    o clean up build options files for SunOS, in particular
1115      - remove -traditional from xmakedepend
1116      - change -xarch=v9 to -xarch=native for f77
1117      - restore use of make (not gmake)
1118      - add CC=gcc if using g77
1119    o changes per discussion of AM, JMC, & EH3 today:
1120      - move redundant "grid" variables out of "state" -- in preparation of
1121        creating proper CF-style coordinate variables and in recognition
1122        that any/all grid variables can be easily copied (eg. w/NCO) from
1123        the grid files into any of the other NetCDF files
1124      - *always* output grid variables with MDSIO (this will eventually be
1125        changed)
1126      - output MNC grid file if useMNC is true
1127    o every instance of _END_MASTER() has been found and replaced with
1128      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1129      preprocessors
1130    o re-arrange diagnostics pkg initialisation:
1131     - allow each package to extend the available diagnostics list
1132     - add some checking and fix small problems (multi-threaded, ...)
1133     - new S/R diagnostics_fill (replace fill_diagnostics):
1134       look through the short list of active diag. (instead of the long list)
1135       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1136    
1137    checkpoint57a_post
1138    o this set of changes restores TAMC compatibility
1139      tested for global_ocean.90x40x15 adjoint on trough
1140      (what a pain)
1141    
1142    checkpoint57a_pre
1143    o some modifs in tools/build_options for sunos
1144    o call ctrl_pack for ctrl at end for optimcycle=0
1145    
1146    checkpoint57
1147    o add horizontal bi-harmonic viscosity for vertical velocity
1148      - new parameter viscA4W (defaults to viscA4)
1149      - affects only non-hydrostatic code
1150      - to be done: no-slip lateral boundary conditions
1151    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1152    o implement Implicit Vertical advection for pTracers
1153    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1154      (implemented also for implicit vertical diffusion & advection)
1155    o OBCS: extend application of tracer open boundary conditions
1156      to a strip beyond the boundary of width Olx/Oly
1157    o add call monitor to TAF set of required calls (flow directives)
1158      and include in natl_box_adjoint
1159    o untangle a few ifdefs related to cost, ctrl, autodiff
1160      untangel a few ALLOW_ECCO_OPTIMIZATION
1161    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1162      (theta2, salt2 in ecco_cost_weights)
1163    
1164    checkpoint56c_post
1165    o OBCS as control variables
1166      - update ctrl_ad_diff.list, obcs_ad_diff.list
1167      - remove balance of obcs controls from default
1168      - fix index bug nobcs in ctrl_init
1169      - fix dummy fields filen in ctrl_pack
1170      - add dummy weights for obcs
1171    o lsopt: comment out fort.94 output
1172    o optim:
1173      - remove unnecessary header files
1174      - adjusted namelists
1175      - add xerbla.F to Makefile
1176    o exf:
1177      - multiple modifications of exf_check_range
1178      - unit change in exf_init_runoff from [m/year] to [m/s]
1179    o mdsio:
1180      - i/o-vector change debugLevel from debLevA to debLevB
1181    
1182    checkpoint56b_post
1183    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1184      is called from DO_THE_MODEL_IO
1185      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1186      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1187      - clean up PTRACERS_WRITE_TIMEAVE a little
1188    o add another verification experiment that tests both the cfc-pkg and
1189      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1190      reactive tendencies treated inline with regular timestepping
1191    o testreport previously did a lousy job of comparing small numbers, so
1192      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1193      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1194      testreport.
1195    o ptracers_monitor: bug fix for MPI
1196    
1197    checkpoint56a_post
1198    o GCHEM: finish reorganizating the package
1199      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1200        (introduces another 3D-array for each passive tracer, but only if
1201        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1202        gchemTendency is not needed because the timestep is done separately)
1203      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1204      - GCHEM is now---more or less cleanly---separate from PTRACERS
1205      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1206        so clear to me how that should be done in a general way.
1207    o CFC: improve formatting of output in CFC_ATMOS
1208    o PTRACERS:
1209      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1210        that ALL experiments with ptracers enable can be checked. This makes
1211        GCHEM_MONITOR obsolete.
1212      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1213        monitorFreq
1214      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1215    o add PTRACERS (PTR0[1-5]) to testreport output
1216    o exf_check_range:
1217      * default changed to .TRUE.
1218      * will check values for niter0 if debLevA, every timestep if debLevB
1219      * STOP in exf_check_range if 'out of range'
1220      * range chosen generous to allow for potential extema
1221      TBD: a version with stricter range
1222           permitted range would be runtime parameters
1223    o GMredi:
1224      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1225      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1226      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1227    o GCHEM:
1228      - move call to GCHEM_FORCING_SEP, so that it is now called before
1229        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1230      - introduced a useGCHEM runtime flag and applied it everywhere.
1231      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1232        this flag is now only visible within GCHEM-pkg routines.
1233      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1234        be replaced by a 3D array that is computed before thermodynamics; for
1235        this, the tracer ID iTracer had to be included into the parameter list
1236        of ptracers_forcing
1237      - set up forward_step to call gchem_forcing, that will replace
1238        gchem_forcing_int in ptracers_forcing
1239      - cleaning up
1240    o small cleaning of exch2: remove files that are also in eesupp/src
1241    
1242    checkpoint56
1243    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1244    o mnc: cleanup "full" files--fixes out-of-memory problem
1245    o ECCO-GODAE
1246      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1247      * fully merged and updated from SIO code
1248        windstress sign change affects
1249        - exf_inscal_[u/v]stress
1250        - sign of xx_tau[u/v] adjustments
1251        - signs in cost_scat
1252      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1253      * natl_box_adjoint updated and compressed
1254      * 2-level checkpoint switch added
1255        (tested in EXP. 1 of natl_box_adjoint)
1256      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1257    o SVD
1258      * first complete, non-hacked version for SVD calculations
1259      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1260        performed via direct access files admtlm_vector.it????
1261        (via ctrl_[un]pack)
1262      * optimcycle is used for ARPACK iteration counter
1263        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1264      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1265        and add linear transforms where necessary
1266      * controls are initial/final SST, SSS (can be extended; need to check
1267        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1268    o mdsio: filename info to both stderr, stdout
1269    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1270      from sign change
1271    
1272    checkpoint55j_post
1273    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1274      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1275    o add consistent build directories and .cvsignore files to verification
1276    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1277    o make all subroutines 30 or less characters in length for certain older
1278      compilers to work (a thorough search only turns up two routines in
1279      pkg/ptracers)
1280    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1281      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1282    
1283    checkpoint55i_post
1284    o change arrays for total vertical diffusivity (2.D if explicit,
1285      3.D if implicit) ; each ptracer uses its own background value.
1286    o added mnc/NetCDF output capability to ocn_compon_interf
1287      - added bits to verification/cpl_aim+ocn so that it can run on
1288        ITRDA and other clusters without the mpirun "-wd" option
1289    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1290      configuration
1291    o give MNC the ability to create additional files rather than
1292      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1293      - the default is just less than 2GB which is a practical limit
1294        on many systems
1295    o Compute the non-local term using either KPP vertical diffusivity (=default)
1296       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1297    
1298    checkpoint55h_post
1299    o add verification test "vermix"
1300    o remove all the *_ioinc flags and replace with the single global
1301      outputTypesInclusive flag
1302    o allow to set a vertical profile of vertical diffusivity for T & S
1303    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1304    o useMNC moved from data.mnc to data.pkg
1305    
1306    checkpoint55g_post
1307    o Renaming carbon AD experiments to comply with testreport conventions
1308    o Updating adjoint of Held-Suarez hs94.1x64x5
1309    o Fixing directives for non-ECCO forward_step, after ECCO directives
1310      have been fixed to avoid recomp. of do_oceanic_phys
1311      Works well for global_ocean.90x40x15,
1312      but recomp. issue remains for carbon
1313    o Updating adjoint output for natl_box_adjoint after
1314      pkg/ecco has been modified (see taga c55d_post)
1315    
1316    checkpoint55f_post
1317    o rename to timeave_init_fixed
1318    
1319    checkpoint55e_post
1320    o some delicate re-shuffle of store directives to avoid one
1321      extra call of do_oceanic_physics
1322      affects ecco_the_main_loop.F, do_oceanic_physics.F
1323      checkpoint_lev1_directives.h
1324    o NB: this may break global_ocean adjoint temporarily,
1325      but it is clear how to fix it. Will do later, need this now.
1326    
1327    checkpoint55d_post
1328    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1329    o ecco_cost_weights is modified to 1x1 runs
1330    o modifs to allow observations to be read in as
1331      single file or yearly files
1332    o enable to read exf forcing fields as either
1333      single file or yearly files (flag useExfYearlyFields)
1334    checkpoint55d_pre
1335    
1336    o switch between 2-level and 3-level checkpointing
1337    o add ability of MNC to write local and "partial" (eg. 2D slices where
1338      the full 3D field is never actually stored) arrays to NetCDF files
1339      with the correct (that is, the complete multi-dimensional) set of
1340      array indicies
1341      - used in mom_vecinv() to write the diagFreq output
1342      - tested (demonstrated) in verification/aim.5l_cs
1343    o further mnc-ification
1344      - add verification/lab_sea to the list with mnc setups
1345      - fix undefined mnc v-names in cd_code
1346      - add kpp to mnc output (both snapshot and timeave)
1347    o non-hydrostatic code
1348      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1349        in calc_gw.F
1350      - defaults to viscAh
1351      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1352        friction or Leith) in non-hydrostatic mode, as long as there is
1353        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1354    o pkg/cost
1355      extend simple cost functions to treat time mean quantities
1356      (T,U,V) via cost_accumulate_state from cost_tile
1357    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1358        be 2 times larger than the minimum size the advection scheme requires.
1359        now get a perfect conservation of salt in advect_cs test-exp (updated)
1360    o GGL90 (Gaspar's TKE mixed layer)
1361      - add horizontal diffusion of TKE, requires exchanges in
1362        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1363        default. In OPA there is no horizontal diffusion of TKE but the
1364        mixing coefficients are computed from a horizontal average of TKE of
1365        6 points or so. I think that diffusion has a little more physical
1366        justification.
1367      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1368        was in vain)
1369      - mask tke-variable in ggl90_init
1370    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1371    o fix biharmonic diffusion on CS-grid.
1372    o more obcs stuff
1373      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1374        for reading boundary values. This routine is called from
1375        obcs_prescribe_read
1376      - updated obcs_check
1377      - changed sponge layer relaxation parameter units for days to seconds
1378      - turned off sponge layer by default
1379      - changed argument list of OBCS_CALC to myTime+deltaTclock
1380      - fixed about 35 bugs in obcs_external_fields_load
1381    
1382    checkpoint55c_post
1383    o obcs stuff
1384      - new runtime flags useOBCSprescribe, useOBCSbalance
1385      - re-arranged obcs_calc
1386      - moved exf_getobcs to obcs_prescibe_read
1387        obcs_prescibe_read is called after ORLANSKI stuff
1388        and independent of it (executable can contain all).
1389      - updated obcs_check
1390      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1391        These may be necessary only if tangential velocities are
1392        prescribed at OB, not sure, needs testing.
1393    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1394      which simplifies the calls and passes the ifc check-bounds test
1395    
1396    checkpoint55b_post
1397    o add a 2D scalar, Z location, exchange_2 routine.
1398    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1399      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1400      affects advect_cs results (for the wrong reason): update output.txt
1401    o use a more standard discretization for biharmonic viscosity ;
1402     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1403      affects results of dome set-up: update output.txt
1404    o fix gad_advection.F (CubedSphere part), back to version 1.23
1405    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1406    
1407    checkpoint55a_post
1408    o merged code to
1409      * prescribe/read time-dependent open boundaries
1410        (works in conjunction with exf, cal)
1411      * sponge layer code for open boundaries
1412      * each boundary N/S/E/W now has its own CPP option
1413        (healthy for the adjoint)
1414    
1415    checkpoint55
1416    o up-to-date adjoint of previous breaks
1417      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1418      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1419      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1420      - carbon: * remove tr1-related adjoint verification
1421                * add ptracer as control variable
1422    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1423      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1424    
1425    checkpoint54f_post
1426    o in verification/carbin/ remove experiment related to
1427      ALLOW_PASSIVE_TRACER (array tr1 etc)
1428      code_ad/ input_ad/ results_ad
1429    
1430    o add two new packages
1431      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1432        + subject to optimization (memory)
1433      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1434        + subject to reordering (many GOTOs in the original code)
1435        + so far opps is called for every (i,j) point, and then operates in
1436          the vertical; one may want to reorder the scheme in order operate in
1437          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1438          fields)
1439    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1440      - all verification tests compile and run with linux_ia32_g77
1441      - defaults are compatible with current input files--nothing
1442        should change if you were not previously using MNC
1443      - MNC output has been added in numerous places (eg. timeave)
1444        but there are still a few writes not yet do-able with MNC
1445        (this is in progress)
1446      - flags now allow for either/or/both use of MDSIO and MNC and
1447        documentation will soon follow
1448      - numerous small formatting cleanups for ProTeX
1449    o add version info (via BUILD_INFO.h) to MNC and stdout
1450    
1451    checkpoint54e_post
1452    o add two new packages
1453      - pp81 (Packanowski and Philander, 1981), Richardson number and
1454        stratification dependent mixing
1455      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1456      - these scheme operate in a similar manner as KPP (without ghat, of
1457        course), however there is only one diffusivity that is used for both
1458        temperature and salinity (and passive tracers)ç
1459    o add offline package
1460    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1461      provided by Stephanie Dutkiewicz
1462    o genmake2: add ability to search for C compilers and cleanup test output
1463      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1464    
1465    checkpoint54d_post
1466    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1467    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1468      leading to additional shift by 5 days each year of integration
1469       (i.e. leading to considerable offset over the years)
1470    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1471    o start with no AB and no initial filtering (staggerTimeStep):
1472      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1473    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1474      (external loading & cpl import/export stay in forward_step.F)
1475    o update coupling interface to work with new staggerTimeStep
1476    o change MDSIO ptracers_pickup.
1477    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1478    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1479    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1480    
1481    checkpoint54c_post
1482    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1483      this affects (truncation error) output.txt of test-exp:
1484       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1485    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1486    o change Qnet to always be the net heat flux, (+upward).
1487      affects (truncation error) output of natl_box exp.: updated
1488    o define the max number of passive tracers in PTRACERS_SIZE.h
1489    o start to test mnc routinely in exp0
1490    o add sea-ice loading (sIceLoad) as a new forcing field.
1491    
1492    checkpoint54b_post
1493    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1494       impressive on Altix and Opteron systems)
1495    o diagnostics can now write NetCDF files through the mnc package
1496    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1497    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1498    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1499      affects (truncation error) output of lab_sea & natl_box exp.: updated
1500    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1501    
1502    checkpoint54a_post
1503    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1504    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1505    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1506    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1507      + internal_wave (shift in writing cg2d_ini_res)
1508    checkpoint54a_pre
1509    
1510    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1511      - modified verification/lab_sea and natl_box_adjoint accordingly
1512    
1513    checkpoint54
1514    checkpoint53g_post
1515    o prepare splitting of thermodynamics: store convect.counter in common block
1516    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1517      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1518    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1519    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1520    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1521    o restore adjointability
1522    
1523    checkpoint53f_post
1524    o modifications that affect AIM experiment results (update output.txt):
1525      - no advection of S at top interface Nr (pkg/generic_advdiff)
1526      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1527    o AIM pkg:
1528      - include stability function into surf.Flux derivative relative to Tsurf
1529      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1530    
1531    checkpoint53e_post
1532    o merged cylindrical coord configuration
1533    o added rotating_tank experiment
1534    checkpoint53e_pre
1535    
1536    checkpoint53d_post
1537    o faulks upgraded: re-generate output.txt that have changed:
1538       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1539    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1540    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1541    o added Sadourny discretization of Coriolis
1542      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1543      - re-enabled use of omega3 (useAbsVorticity)
1544    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1545      vector-invariant equations
1546      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1547    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1548      hopefully without new bugs
1549      - still to do: biharmonic friction for non-hydrostatic w
1550    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1551    o regenerated output for global_ocean_ebm (using -ieee)
1552    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1553      of mom_common/
1554      - simple re-arrangement of instructions within computing loop
1555    checkpoint53d_pre
1556    
1557    checkpoint53c_post
1558    o new version of coupler for AIM+thSIce and Ocean models
1559     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1560     - land: change Evaporation of snow
1561     - aim with thSIce: fix bug in snow-precip.
1562    o changes to calc_gw.F
1563     - bug fix for w^2 term near the bottom boundary
1564     - (hopefully) improve the lateral slip boundary condtions for use with
1565        partial/looped cells
1566      - because the bug fix changes two verification experiments anyway (exp5
1567        and plume on slope), change the lateral boundary condition from half slip
1568        to the value of no_slip_sides
1569    o ebm package wasnt quite up to the parallel task. Fixed that.
1570    o Adjoint of EBM package + verification
1571      * TLM OK
1572      * ADM not sufficient accuracy yet (needs further testing)
1573    
1574    checkpoint53b_post
1575    o Commiting new energy balance model to repository
1576      * package is pkg/ebm
1577      * verif. is verification/global_ocean_ebm
1578      * references are in ebm_driver.F
1579    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1580    C        Global thermohaline circulation. Part I:
1581    C        Sensitivity to atmospheric moisture transport.
1582    C        J. Climate 12(1), 71-82
1583    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1584    C        Global thermohaline circulation. Part II:
1585    C        Sensitivity with interactive transport.
1586    C        J. Climate 12(1), 83-91
1587    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1588    C        Destabilization of the thermohaline circulation
1589    C        by atmospheric eddy transports.
1590    C        J. Climate 7(12), 1870-1882
1591    o Will need long integration testing.
1592    checkpoint53b_pre
1593    
1594    o created pkg/mom_common in preparation for variable viscosity code
1595    o renamed and split ini_mnc_io
1596    o pkg/land: only liquid water can diffuse or run-off
1597    o AIM using land: soil wetness availability account for snow
1598    o added printMapIncludesZeros to EEPARMS namelist
1599    
1600    checkpoint53a_post
1601    o restore TAMC compatiility for exf_constants.h
1602      (no usage of _d in .h)
1603    o Additional storing in KPP in an attempt to fix
1604      TAMC problem with adjoint of KPP code.
1605      (no success...)
1606      Identical code works fine with TAF.
1607    o Fixed verification/natl_box_adjoint experiments.
1608      Initial conditions for Experiments 4 and 5 are now
1609      set to "SEAICE_initialHEFF=0", which is more reasonable,
1610      and hence gives results closer to that of Experiment 2.
1611      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1612    
1613    checkpoint53
1614    o stable checkpoint with up to date adjoint
1615      TLM tests only run for 1st grdchk at the moment. Its unclear if
1616      this is a code problem or a problem with resetting code for g_
1617      variables that is being autogenerated wrong.
1618      Otherwise:
1619       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1620       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1621         are both still in chaos following their security messes.
1622    
1623    checkpoint52n_post
1624    o various build (mostly genmake2) changes including:
1625      - ability to build/run more easily within Cygwin and MacOS X
1626      - more complicated Makefiles with a stronger dependence on Gnu Make
1627    o pkg/seaice modifications
1628      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1629        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1630        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1631      - changed proxy for geostrophic velocity and updated
1632        verification/lab_sea/results/* accordingly
1633      - removed ADI dynamic solver from pkg/seaice
1634      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1635        they caused a segmentation fault under certain circumstances
1636      - removed unused field WATR
1637    o bug fix in exf-package:
1638      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1639         now reflect that.
1640    o small fixes in the cal-package:
1641      - set reference date to first of January for the 'model'-calendar
1642      - failing of cal_CheckDate in cal_FullDate now actually results in a
1643        warning
1644    o small modifications in exf-package to increase flexibility:
1645      - change climtempfreeze from a constant to a runtime parameter that
1646        is specified in data.exf_clim (default = -1.9)
1647      - introduce runtime parameter windstressmax (default = 2.0) that is
1648        specified in data.exf
1649    o fix in pkg/thsice:
1650      - update Evap (Tsf changes) to be consistent with Latent heat flux
1651      - maintain snow precipitation unchanged (even if Tsf >=0).
1652     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1653    
1654    checkpoint52m_post
1655    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1656      this does not change any of the results, because myIter=0 in swfrac always
1657      lead to jwtype=2 (the default anyway), but the call makes little sense
1658      as a default
1659    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1660    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1661      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1662    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1663    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1664    o extending useSingleCpuIO option to work with new exch2 I/O format
1665      - old-style, missing-tile I/O is still accessible by defining CPP
1666        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1667    o monitor package can write to NetCDF files and/or STDOUT
1668    o fix re-definition bug in MNC_GRID_INIT_ALL()
1669    o doc/api_reference added
1670      - a framework for building an API Reference Manual using all
1671        the "protex" comments embedded in the code
1672      - see pkg/generic_advdiff, pkg/mnc for examples
1673    o MNC:
1674      - make myThid the last argument for all subroutines
1675      - new default for the grid files: NO halos
1676      - add useMNC and other run-time flags
1677      - separate per-file-group handling of the unlimited dimension
1678      - early initialization of MNC w/ flags read at the eeboot stage
1679        and lookup tables set in initialize_fixed
1680      - write all MNC output to a freshly-created directory
1681    o thermodynamics sea-ice (thsice) is now tested with testreport.
1682    o test exp. advect_cs: use the standard cs32 grid ; update output.
1683    o Added functionality to grdchk:
1684      pick global i,j,k position (or nearest wet) where to perform check.
1685    
1686    checkpoint52l_post
1687    o new land formulation:
1688      a) use ground enthalpy as prognostic variable to ensure exact
1689         energy conservation.
1690      b) account for water temperature and for latent heat of freezing
1691         in all processes (rain, run-off, ground storage)
1692      c) compute surface and ground temperature implicitly.
1693    o aim_v23 modification for new land model:
1694      a) Treat separately land / ocean / sea-ice surface fluxes
1695         to allow implicit computation of land & sea-ice surface temp.
1696      b) add snow precipitation.
1697    checkpoint52l_pre
1698    
1699    o fix problem (when 1 tile is empty) in min/max monitor.
1700    o fix bug in timeAve (u,vZetatave in common block)
1701    o no restoring terms under ice for pkg/seaice
1702    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1703    o bug fix for pkg/seaice pickups
1704    o change MNC call locations and add coordinate attributes
1705    o mask vorticity at the corner ; affects global_ocean.cs output
1706    o fix ini_curvilinear_grid ; test CS experiments with mpi
1707    o aim.5l_cs: modify sea-ice fraction input file ; update output
1708    o exf: Adding simple range check routine for exf fields after read
1709    
1710    checkpoint52k_post
1711    o removed top-level directory "diags"
1712      - we migrated these functions to pkg/timeave a long time ago
1713    o fixed bug introduced in pkg/monitor
1714    o accuracy ctrlprec = 32 insuffient for gradient checks using
1715      averaged fields (I/O via cost_averages)
1716      -> use ctrl.h in active_file*.F to control I/O precision.
1717    o paramter list of CALL ADTHE_MAIN_LOOP
1718    o added initial do_the_model_io to ecco
1719    o set all ...Freq to zero after cost_final
1720      taveFreq, dumpFreq, pChkptFreq
1721    o MAIN and ECCO differentiability restored
1722    
1723    checkpoint52j_post
1724    o fix nchklev in tamc.h for global_ocean...
1725    o Bringing flow and store directives up-to-date
1726    o Really weird thing!
1727      call do_the_model_io from the_main_loop with parameters
1728      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1729      TAF places a faulty re-call of initialise_varia
1730      after cost_final call which should not be there!
1731    checkpoint52j_pre
1732    
1733    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1734      error messages
1735    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1736    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1737      debug output
1738    o modfied mdsio_writefield.F to handle non-global files under exch2
1739    o update AIM Cubed-Sphere exp (aim.5l_cs):
1740      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1741    o update AIM Equatorial Channel exp:
1742      use standard aim_v23 pkg and change the SST fields to be more realistic.
1743    o globalFile now works with exch2
1744    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1745      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1746    o limit timeave output for hi-res integrations
1747    
1748    checkpoint52i_post
1749    o removed CPP_EEOPTIONS.h from verification/*/code
1750    o updated the tiling for global_ocean_pressure
1751    checkpoint52i_pre
1752    
1753    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1754      the old pkg/aim).
1755    
1756    checkpoint52h_pre
1757    o shortened offending lines in exch2_send_rx?.template
1758    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1759    o genmake2: add build & execute test for NetCDF code
1760    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1761      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1762    o added useSingleCPUIO flag to monitor.F and mon_out.F
1763    o added temporary hack for sea-ice dynamics on the cube:
1764      metric terms are ignored and it is assumed that
1765      there is no sea-ice on cube faces 1, 2, 4, and 5.
1766    
1767    checkpoint52f_post
1768    o added exch2 cube routines to pkg/exch2
1769    o modified hs94.cs-32x32x5 to use it
1770    o added new grid files to hs94.cs-32x32x5
1771    checkpoint52f_pre
1772    
1773    checkpoint52e_post
1774    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1775      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1776    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1777      to work with implicit vertical advection and AB ;
1778    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1779    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1780     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1781    checkpoint52e_pre
1782    
1783    o fix bug in impldiff when Nr=1 or Nr=2.
1784    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1785    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1786    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1787      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1788    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1789    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1790    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1791    
1792    checkpoint52d_post
1793    o re-tiled many expts to allow comparison in multi-processor mode
1794      - updated output accordingly
1795      - changed hs94.128x64x5 to use intial T from file rather than use the
1796        random number generator
1797    o add infrastructure in model routines for fizhi and gridalt packages
1798    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1799    o changes to permit hi-res, cubed-sphere, configuration
1800      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1801      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1802      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1803        of surface winds for the cube
1804      (A verification experiment, based on global_ocean.cs32x15, but with
1805       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1806       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1807       complete with example surface forcing files and matlab scripts to look
1808       at the output and compare it with that of global_ocean.cs32x15.)
1809    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1810       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1811       to conform to the common rule.
1812    o check-in the first version of the coupler + interfaces for multi-components
1813       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1814       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1815       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1816       - ocean and atmos. share the same horizontal grid (no interpolation).
1817       - exchanges between component and coupler is done in forward_step
1818    o new verification experiment, cpl_aim+ocn:
1819       coupled ocean - AIM atmosphere on cs32 grid.
1820    
1821    checkpoint52d_pre
1822    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1823    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1824    
1825    checkpoint52c_post
1826    o Fixing OPTIONS files for use of exf:
1827      - ALLOW_ECCO not needed
1828      - ECCO_CPPOPTIONS.h should not be included from
1829        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1830        as has been the case in the past
1831      - All cal/exf related options are currently set in
1832        single header file. Should remain so until we
1833        agree on a consistent new policy.
1834    o Removed all CPP options for cal package.
1835      cal has no more CPP options.
1836    o modified STOREs in GAD_ADVECTION
1837    o corrected key comp. for passkey
1838    
1839    checkpoint52b_post
1840    o new version: "thsice" of thermodynamic sea-ice pkg:
1841     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1842     - modify fluxes but do not change theta directly;
1843     - light cleaning of bulk_force pkg (still needed with thsice).
1844     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1845       + output_thsice.txt to test thsice & bulk_force pkgs.
1846    o put back grid & coriolis monitor output.
1847    checkpoint52b_pre
1848    
1849    o call "do_the_model_io" at the beginning (=> dump initial state)
1850    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1851    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1852      (need info on NUMBER_OF_PTRACERS)
1853    o missing PTRACERS headers in some routines
1854    o default tamc.h in pkg/autodiff supposed to crash
1855      to ensure proper customization
1856    
1857    checkpoint52a_post
1858    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1859      - moved surfaceTendencyTice from pkg/seaice to main code
1860      - subroutine FREEZE_SURFACE now limits only surface temperature
1861        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1862        => new output.txt for global_ocean.cs32x15 & global_with_exf
1863      - keep the old version of FREEZE for backward compatibility;
1864        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1865      - corresponding modifs for TAF directives
1866    o added surface flux output variables to TIMEAVE_STATVARS
1867    o time-averaged output for pkg/ptracers
1868    o fix problem with ECCO-related divided adjoint
1869      snapshot file was missing some ad-variables,
1870      but no warning issued by TAF
1871    
1872    checkpoint52a_pre
1873    o some bug fixes for #undef REAL4_IS_SLOW
1874    
1875    checkpoint52 = ecco_c52_e35
1876    o after testing adjoints of checkpoint51u_post
1877    
1878    checkpoint51u_post
1879    o this is the post-merge tag of the ecco-branch
1880      (needs another clean checkout and re-testing)
1881    o various natl_box_adjoint configs and results
1882      but no input fields
1883    o obcs adjoint not yet merged!
1884    o adding ECCO global 1x1 and 2x2 degree configs
1885    o updated/extended some store directives for seaice
1886    o pkg/ecco now containes ecco-specific part of cost function
1887    o top level routines the_main_loop, forward_step
1888      supersede those in model/src/
1889      previous input data.cost now in data.ecco
1890      (new namelist ecco_cost_nml)
1891    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1892    
1893    checkpoint51t_post
1894    o this is the pre-merge tag of the ecco-branch
1895    
1896    checkpoint51s_post
1897    o cleanup: removed various obsolete #define-s
1898    o pkg/grdchk
1899      - renamed 'ph-grd 3' to 'grad-res'
1900      - merged from ecco-branch
1901        (remaining bug fixes for obcs gradient checks)
1902      - additional high-precision output for testreport
1903        (grep for 'precision_grdchk_result')
1904    
1905    checkpoint51r_post
1906    o cleaned up or removed CPP_OPTIONS.h files
1907    o updated results for some of the tests to reflect the new
1908      optfiles (-ieee: -O0 instead of -O3)
1909    
1910    checkpoint51q_post
1911    o cd_code:
1912      - moved cd_scheme.F -> cd_code_scheme.F
1913      - separate read_checkpoint from cd_code_ini_vars.F
1914      - separated cd_code part from write_checkpoint
1915      - updated AD_SOURCE, generated .flow
1916      - added CD_CODE_VARS.h to the_main_loop
1917      - Moving cd_code specific store dir.s to pkg/cd_code
1918    o ctrl package totally restructured
1919      - pack/unpack now optional and decoupled from
1920        xx_/adxx_ I/O
1921      - ctrl_pack/unpack cleaned
1922        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1923      - confined inclusion of AD_CONFIG.h to where necessary.
1924    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1925    
1926    checkpoint51p_post
1927    o create initial cd_code package
1928      - WARNING: the initialization of fields within packages
1929        is broken because INI_FIELDS (where READ_CHECKPOINT is
1930        called) is called *before* PACKAGES_INIT_VARIABLES.
1931        This seems to be backwards since
1932        1) its important to initially zero the entire field including
1933           the "halo" region
1934        2) zeroing needs to be done *before* reading pickup info
1935           and the pickup call might or might not happen in any
1936           particular run
1937      - this needs an overhaul for R2
1938    o cleanup verification/*/code/GMREDI_OPTIONS.h
1939    o cleanup testreport
1940    
1941    checkpoint51o_post
1942    o bringing AD-related verif's up to date with genmake2
1943      - carbon/
1944      - global_ocean.90x40x15/
1945      - hs.94.1x64x5/
1946      - (front_relax/ )
1947    o (more) consistent directory structure for AD-related verif.'s
1948    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1949    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1950    o bug fix in find_alpha.F for MDJWF:
1951      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1952        change rho -> rho-rhoConst
1953      - replace call find_rho to find_rhonum
1954    o initialisation of rFlx extended to full array (required by TAF)
1955      and shifted to thermodynamics
1956    o removed PTRACERS.h in ptracers routine
1957    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1958    o Correcting initialisations for fVerU, fVerV.
1959    o helping TAF to recognize dependency on kUp for
1960      fVerU, fVerV
1961    o Replacing delZ by delR in pkg/ctrl/
1962    checkpoint51o_pre
1963    
1964    o undid all of cp51 pending some cleanups and discussion
1965    o added the [#include "AD_CONFIG.h"] statement to all files that need
1966       it for adjoint/tl #defines
1967     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1968     o removed tools/genmake since it no longer works
1969    
1970    checkpoint51n_post
1971    o modifications to make FREEZE flux visible to pkg/kpp
1972      - moved surfaceTendencyTice from pkg/seaice to main code
1973      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1974      - subroutine FREEZE now limits only surface temperature
1975        (this means new output.txt for global_ocean.90x40x15,
1976         global_ocean.cs32x15, and global_with_exf)
1977    o added surface flux output variables to TIMEAVE_STATVARS
1978    
1979    checkpoint51n_pre
1980    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1981    o added [#include "AD_CONFIG.h"] to all files that use the following
1982      defines:
1983      - ALLOW_ADJOINT_RUN
1984      - ALLOW_TANGENTLINEAR_RUN
1985      - ALLOW_ECCO_OPTIMIZATION
1986    
1987    checkpoint51m_post
1988    o incorporating changes to get TAMC/TAF working in genmake2
1989      - added new TAMC/TAF targets to the Makefile
1990      - various cleanups related to package handling
1991      - these changes should have no impact on the forward model
1992    
1993    checkpoint51l_post
1994    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1995     - faster algorithm for cal_addtime.F
1996     - higher precision arithmetic, where needed
1997     - pkg/exf *startdate variables changed from calendar date to
1998       model integration time
1999    
2000    checkpoint51l_pre
2001    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2002    o enable to apply restoring on S & T only in a latitude band.
2003    o update output (external_forcing_surf modif. change truncation errors)
2004       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2005    
2006    checkpoint51k_post
2007    o change default to: useNHMTerms=.FALSE.
2008     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2009       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2010     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2011        exp1, ideal_2D_oce
2012     - change data file of oceanic exp (leave the results unchanged for now)
2013       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2014    o set gravitySign automatically according to the vertical coordinate used
2015      (and change sign: back to "logical" value: +1 when R increases downward)
2016    o added an include barrier to the default CPP_OPTIONS.h and
2017      removed the #include "PACKAGES_CONFIG.h" from it
2018    o fix a bug in mom_fluxform (from chk51j_post)
2019    
2020    checkpoint51j_post
2021    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2022    o adjusted some flow directives (dynamics, thermodynamics)
2023    o added cubed-sphere case to test cost function
2024    o heckpoint_lev?_directives.h now include
2025      pkg-specific directives, whenever those are enabled.
2026    o Moving pkg-specific flow directives to corresponding pkg
2027      Moving pkg-specific differentiation list to corresponding pkg
2028      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2029      ---> conventions are
2030           - pkg_ad.flow
2031           - pkg_ad_diff.list
2032           - pkg_ad_check_lev?_dir.h
2033    
2034    checkpoint51i_post
2035    o merge of the branch-genmake2
2036      - knowingly breaks the older genmake
2037      - automatic generation of all ALLOW_${PKG_NAME} defines
2038      - new testreport supersedes older testscript
2039    o large number of package inclusion and header cleanups
2040    checkpoint51i_pre
2041    
2042    o new output for adjoin of global ocean vector invariant
2043    o fix for checkpoint of thermodynamic seaice and bulk_force
2044    o Steph gchem various cleanups
2045    
2046    checkpoint 51h_pre
2047    o fixed some single quotes
2048    o modify gchem pkg to be more versatile
2049    o modifications to clean up dic pkg
2050    o add pkg/cfc
2051    
2052    checkpoint51g_post
2053    o provide links for ARPACK and ADM*TLM
2054    o start removing verification/vero/
2055    o update AD-related stuff
2056      (in particular some IF-statements in model/src/ routines)
2057    o adding to verification/global_ocean.90x40x15/ adjoint of
2058      vector invariant setup
2059    
2060    checkpoint51f_post
2061    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2062    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2063      of tracer Green's fucntions for ocean inversion project.
2064    
2065    checkpoint51f_pre
2066    o Added on-the-fly spatial interpolation capability
2067        "USE_EXF_INTERPOLATION" to pkg/exf.
2068      - This is a temporary Cartesian-grid hack until
2069        the super-duper ESMF coupler becomes available.
2070      - See verification/global_with_exf/README for usage example.
2071      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2072        flags and modified pkg/seaice accordingly.
2073    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2074        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2075        non-local transport term.
2076    
2077    checkpoint51e_post
2078    o pkg/mom_vecinv:
2079      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2080      - add time-ave diagnostic of vorticity advection.
2081    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2082    o atmospheric geopotential: - include water vapor effect;
2083                                - use p^kappa in p* scaling.
2084    o land pkg: read initial state from files.
2085    o AIM : add stratospheric drag in the upper level
2086    
2087    checkpoint51d_post
2088    o change function ILNBLNK (=> last non-blank char.) to return zero
2089      (instead of the string length) when the string. char is empty
2090    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2091    o modif's to restore TAMC compatibility
2092      - avoid "_d" constructs in PARAMETER declarations
2093      - avoid interrupting lines by comment lines
2094    o Use cluster local disks for purely local I/O
2095      vs. globally visible disks needed for ctrl stuff
2096      (merged from ecco-branch)
2097      - new active_file_loc... and mdsio_..._loc routines
2098      - affected packages: autodiff, ctrl, grdchk, mdsio
2099    
2100    checkpoint51c_post
2101    o introducing integer flag debugLevel
2102      - debLevZero: suppress all output
2103      - debLevA: standard
2104      - debLevB: equivalent to current debugMode=.TRUE.
2105    o introducing pathname variable mdsioLocalDir for mdsio
2106      that can be specified at runtime
2107      (relevant for cluster I/O to local disk)
2108    `
2109    >>>checkpoint51b_post
2110    adjoint of ptracers
2111    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2112    o extended state in checkpoint_lev?, etc.
2113    o alternative ctrl/cost with tr1 or ptracer
2114    o new comlev1_bibj_ptracers
2115    o new ptracers.flow
2116    o made ptracers_forcing same as external_forcing_s
2117    o added verification for adjoint with ptracers
2118      - adm. grdchk fail so far
2119      - tlm. grdchk OK
2120      - checked tapelev/comlev recomputations: OK
2121    <<<checkpoint51b_pre
2122    
2123    checkpoint51a_post
2124    o added code for biogeochemistry package
2125      - new pkgs: dic, gchem
2126      - new subroutine in ptracers
2127    o modify code for biogeo packages
2128      - in model/src and pkg/ptracers
2129    
2130    checkpoint51
2131    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2132      - autodiff, ctrl, exf, grdchk, seaice
2133      kept separate packages
2134      - cost, ecco, obcs
2135    o updating verification/internal_wave, verification/lab_sea
2136      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2137    
2138    checkpoint50i_post
2139    o Preparing next differentiable checkpoint and sync
2140      of MAIN vs. ecco-branch
2141      - 1st step: this one is differentiable
2142      - 2nd step: next(! not this) checkpoint will have updated packages
2143                  from ecco-branch)
2144    
2145    checkpoint50h_post
2146    o new package "land": provide surface BC for AIM.
2147    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2148    o AIM: use true log-P extrapolation for near surface temp (= as in
2149        F.Molteni paper) ; update aim.5l_cs output.
2150    o New variable in PARM03 for more flexible pickups
2151    o somewhat cleaned package initialisation sequence for
2152      ctrl/ cost/ ecco/ in packages_... routines
2153    
2154    checkpoint50g_post
2155    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2156      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2157      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2158        made the default because of faster convergence than ADI
2159    
2160    checkpoint50f_post
2161    o exf totally restructured
2162      - replaced all exf_set_ routines by one generic exf_set_gen.F
2163        and made sure it's still differentiable
2164      - split exf_getffields.F into new exf_bulkformulae.F
2165      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2166      - updated adjoint/makefile and relevant verif. accordingly
2167    
2168    checkpoint50f_pre
2169     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2170          + change Evap over land. (update aim.5l_cs output)
2171     o added missing .cvsignores and made uniform across expts
2172     o changed configuration of tidal_basin_2d expt
2173     o added pkg/debug functions for tracing code in fatal crashes
2174     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2175     o new fn in pkg/monitor to stop model if solution grows too big
2176     o removed lots of single quotes from comments
2177    
2178    checkpoint50e_post
2179    o make KPP work with PTRACERS
2180     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2181       nearly a copy of kpp_transport_s
2182     - there is no analogue to SurfaceTendencyS, so I have to use
2183       gPtr(of the surface layer) instead
2184    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2185    checkpoint50e_pre
2186    
2187    checkpoint50d_post
2188    o change kpp output from multiple-record state files to single-record state
2189      files analogous to write_state.F
2190    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2191      analogous to the cg2d-related output.
2192    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2193      so that writing to internal file fn (with length 512) fails.
2194    checkpoint50d_pre
2195    
2196    checkpoint50c_post
2197    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2198    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2199    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2200    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2201    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2202    
2203    checkpoint50c_pre
2204    Merging from release1_p13:
2205    o bug fix for pkg/seaice dynamic solver
2206    o Added SEAICE_initialHEFF to pkg/seaice
2207    
2208    checkpoint50b_post
2209    o store u*,v* in gU,V instead of in guNm1,gvNm1
2210    o in order to put the momForcing out of the Adams-Bashforth:
2211      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2212      to timestep.F
2213    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2214    o re-generate output for highly sensitive test-exp:
2215       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2216    
2217    checkpoint50b_pre
2218    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2219    o corrected CPP option mismatch in exf_Bulk... functions for case
2220      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2221    
2222    checkpoint50a_post
2223    o Bug fix for merging between c50 and KPP.
2224      ikey was passed from thermodynamics to kpp_calc via
2225      common block rather than being recomputed in kpp_calc,
2226      in contradiction with new key itdkey.
2227      New key ikppkey created, and tamc.h headers updated.
2228    
2229    checkpoint50
2230    - 2nd step of merge with ecco-branch:
2231      merge changes in ecco-branch back into main trunk
2232    - bug fix in find_alpha
2233    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2234    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2235    - merged some sliced AD support routines
2236    
2237    checkpoint49
2238    merged from ecco-branch:
2239    o exf:
2240      - Enable initialisation of forcing fields to constant
2241        (runtime) values.
2242      - in exf_getffields.F
2243        Reduce i-/j-loop to interior domain, discarding overlaps.
2244        That also fixes wrong TAF-key computations for key_1, key_2
2245        with bulf formulae.
2246      - exf_init.F modify #ifdef for exf_init_evap
2247      - exf_getffieldrec.F, ctrl_getrec.F
2248        The following INT-usages are not safe:
2249          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2250          fldcount = int(fldsecs/fldperiod) + 1
2251        and were modified.
2252    o autodiff: checkpoint_lev...
2253      - updated storing for bulk formulae (some arrays were missing)
2254      - added state for seaice package
2255      - synchronized with main branch
2256    o DIVA:
2257      Modif.s in
2258      - the_main_loop.F
2259      - the_model_main.F
2260      and added cost_final_restore.F cost_final_store.F
2261      o With these changes, it is possible to fully separate
2262        the first forward run to compute the cost function (mdthe_main_loop)
2263        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2264        into separate model executions.
2265        This enables better tuning of DIVA to given queue sizes.
2266      o Loss of cost function value in consecutive DIVA runs is
2267        fixed by storing to 'costfinal' file.
2268      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2269        beginning/end of adjoint integration is accounted for.
2270      The current changes apply to TAF-1.4.26.
2271      TAF has one remaining bug, requiring one manual change
2272      (see MITgcm manual).
2273    o cal: synchronized between MAIN and ecco-branch
2274    
2275    checkpoint48i_post
2276    o Changes to restore differentiability of code w.r.t. previous tag
2277      (mostly adding new routines to make list and replacing
2278      pressure by totPhiHyd).
2279    o Updated and merged grdchk package
2280      - has both ADM and TLM checks
2281      - works for single- and multi-proc.
2282      - output cleaned
2283      - worked successfully for parallel DIVA
2284    o genmake:
2285      - Adding -platform=SP4
2286      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2287    o Modif. for DIVA:
2288      ctrl_unpack should not be called in intermediate DIVA interval.
2289      (similar thing would apply for active files such as
2290      tbar, sbar, psbar, which should not be reinitialised;
2291      only relevant for ecco-branch)
2292    
2293    checkpoint48h_post
2294    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2295    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2296    o Added SEAICE_initialHEFF to pkg/seaice
2297    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2298    
2299    checkpoint48g_post
2300    --- EOS:
2301    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2302      store total Potential in totPhyHyd for diagnostics & EOS.
2303    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2304    --- Pressure/geopotential gradient:
2305    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2306    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2307      ( changes results of global_ocean_pressure )
2308    o NLFS + z-coord.: add eta*Rho' contribution.
2309    o accurate phiHyd when using interface-W at the middle between 2 centers
2310     ( changes results of ideal_2D_oce )
2311    o includes r* 2nd term in potential gradient.
2312    
2313    checkpoint48f_post
2314    Merging from release1_p12:
2315    o Modifications for using pkg/exf with pkg/seaice
2316      - improved description of the various forcing configurations
2317      - added basic radiation bulk formulae to pkg/exf
2318      - units/sign fix for evap computation in exf_getffields.F
2319      - updated verification/global_with_exf/results/output.txt
2320    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2321      (SBO) core products, including oceanic mass, center-of-mass,
2322      angular, and bottom pressure (see pkg/sbo/README.sbo).
2323    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2324      to avoid negative values in shallow regions.
2325      - updated verification/natl_box/results/output.txt
2326      - updated verification/lab_sea/results/output.txt
2327    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2328    o Added useSingleCpuIO option (see PARAMS.h).
2329    o Updated useSingleCpuIO option in mdsio_writefield.F to
2330      work with multi-field files, e.g., for single-file pickup.
2331    o pkg/seaice:
2332      - bug fix in growth.F: QNET for no shortwave case
2333      - added HeffFile for specifying initial sea-ice thickness
2334      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2335    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2336      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2337    o pkg/seaice:
2338      - adjoint-friendly modifications
2339      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2340    
2341    checkpoint48e_post
2342    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2343    o dynamics: change definition of computational domain & adapt mom_fluxform
2344      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2345    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2346        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2347        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2348        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2349        inverted_barometer solid-body.cs-32x32x1
2350      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2351    
2352    checkpoint48d_post
2353    o in preparation for r*:
2354     a) use pre-computed gradient of hydrostatic potential:
2355        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2356     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2357        => affects results of glob_oce_pressure (different truncation error)  
2358      update output.txt of ideal_2D_oce & global_ocean_pressure
2359    
2360    checkpoint48d_pre
2361    o in preparation for r*:
2362      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2363      pass the 2 comp. of the grad. as arguments to momentum S/R.
2364      but for the moment, only used if it does not change the results.
2365    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2366    
2367    checkpoint48c_post
2368    Modifications in treatment of initial flux forcing controls
2369    to avoid extra storing of flux fields.
2370    
2371    checkpoint48c_pre
2372    o Added tidal_basin_2d experiment (currently 1D!)
2373    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2374    
2375    checkpoint48b_post
2376    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2377     (modification to pressure gradient not yet implemented)
2378    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2379      (for U & V) that are used for vertical advection of momentum.
2380    
2381    checkpoint48a_post
2382    o In preparation for r*, use temp. array to compute vertical transport
2383       in flux-form momentum pkg. => change results of few test-exp.
2384      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2385                        lab_sea, natl_box & plume_on_slope
2386    
2387    checkpoint48
2388    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2389    
2390    checkpoint47j_post
2391    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2392    o moved adexch from forward_step to addummy_in_stepping
2393    o added exch in ctrl_map_...
2394    o aveFreq.=0. at end of cost_final to avoid overwrite in
2395      reverse checkpointing loop
2396    o Yet more changes in gmredi:
2397      * adgmredi_calc_tensor
2398        avoiding all recomputation of gmredi_slope_limit
2399      * adgmredi_x/y/rtransport
2400        added flag for excessive storing to avoid recomp. of
2401        u/v/rtans, dTdx/y/z
2402        -> this is not really necessary and very memory-consuming
2403      * adgmredi_slope_psi:
2404        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2405      * gmredi_slope_limit
2406        re-activated full calculation of taperfct for case 'ac02'
2407    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2408    
2409    checkpoint47i_post
2410    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2411    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2412      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2413    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2414    o gmredi: fix few bugs.
2415    
2416    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2417    This will be a good checkpoint to plug into the ecco-branch.
2418    o few modif.'s to get latest version adjointed
2419      (mainly kick out code in ini_linear_phisurf)
2420    o modif's to run adjoint with exactConserv
2421    o case GM_BOLUS_ADVEC should be cleaned
2422      S/R gmredi_slope_psi should be cleaned
2423    o verification/carbon now has exactConserv=.TRUE.
2424    
2425    checkpoint47g_post
2426    o time-average AIM output: becomes independent from statvars time-average
2427      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2428    o After TAF bug fix:
2429      Tested adjoint of gmredi package.
2430      Tests were done with checkpoint47 rather than with latest
2431      checkpoint47f_post since the latter is broken for the adjoint
2432      verification/carbon/ contains both ADM and TLM gradient checks.
2433    Here they are, before they get changed/lost/stolen.
2434    Mostly modif.'s to fix numerical sensitivities.
2435    Gradient checks OK for
2436    - GM_taper_scheme:
2437      * clipping
2438      * ac02
2439      * linear
2440      * glw91
2441      * dm95
2442      * ldd97
2443    - GMREDI_OPTIONS:
2444      * GM_VISBECK_VARIABLE_K
2445      * GM_NON_UNITY_DIAGONAL
2446      * GM_EXTRA_DIAGONAL
2447      * GM_BOLUS_ADVEC
2448    in conjunction with data.gmredi parameters to be checked in
2449    in a few minutes under verification/carbon/code/
2450    
2451    checkpoint47f_post
2452    Merging from release1_p10:
2453    o modifications for using pkg/exf with pkg/seaice
2454      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2455        and SEAICE_EXTERNAL_FLUXES
2456      - pkg/exf CPP options EXF_READ_EVAP and
2457        EXF_NO_BULK_COMPUTATIONS
2458      - usage examples are Experiments 8 and 9 in
2459        verification/lab_sea/README
2460      - verification/lab_sea default experiment now uses
2461        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2462    
2463    checkpoint47e_post
2464    o created a tag prior to creating a branch
2465    
2466    checkpoint47d_post
2467    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2468      at the bottom boundary had an erroneous half slip boundary condition
2469    o added bottom drag and no slip boundary condition capabilities to
2470      oceanic pressure coordinates code
2471    o added new verification experiment global_ocean_pressure, this experiment is
2472      also described in the tutorial section of the manual
2473    checkpoint47d_pre
2474    
2475    checkpoint47c_post
2476    o Added a verification experiment for a global cubed-sphere ocean run
2477      -  verification/global_ocean.cubed32x32x30
2478      -  uses pkg/therm_seaice and pkg/bulk_forcing
2479    
2480    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2481    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2482      when using P-coordinate; only implemented for atmospheric config.
2483    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2484      NOTES: requires option NONLIN_FRSURF to be "#define".
2485    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2486    
2487    checkpoint47b_post
2488    Merging from release1_p9:
2489    o pkg/seaice
2490      - removed GOTO's and added taf directives
2491      - double precision constants to reduce the g77 (Linux)
2492        to F77 (SGI) differences reported in release1_p8
2493    o tools/genmake
2494      - added SGI options
2495    o verification/testscript
2496      - updated to that of checkpoint47a_post
2497    o verification/global_ocean.90x40x15/input/eedata
2498      - modified for SGI f77 compatibility
2499    o verification/lab_sea
2500      - added description of sea-ice model
2501      - added missing matlab routines
2502      - added test of thermodynamics parallelization
2503    
2504    checkpoint47a_post
2505    o new pkg: aim_v23
2506     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2507       for now, keep the same surface forcing as before.
2508     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2509     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2510     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2511    o add diagnostic of surface correction term in monitor output
2512    
2513    o bulk_force and therm_seaice
2514    - Two packages:  bulk_force (Bulk forcing)
2515      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2516    - Earlier integration from Stephaine Dutkiewicz
2517      and Patrick Heimbach.
2518    - Two ifdef statements for compile time,
2519       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2520    
2521    checkpoint47
2522    differentiable version of checkpoint46n_post
2523    o bug fix in quasihydrostaticterms
2524    o * "clean" adjoint code (in terms of extensive recomputations)
2525        can now be obtained for all GMREDI options (i.e. for
2526        - GM_VISBECK_VARIABLE_K
2527        - GM_NON_UNITY_DIAGONAL
2528        - GM_EXTRA_DIAGONAL
2529        - GM_BOLUS_ADVEC )
2530      * However, wrong gradient check problem remains unsolved.
2531      * New CPP options have been introduced for different
2532        tapering schemes
2533    o external_fields_load now part of differentiation list
2534    o pressure needs multiple storing;
2535      would be nice to have store_pressure at beginning or
2536      end of forward_step, e.g. by having phiHyd global (5-dim.)
2537      (NB: pressure is needed for certain cases in find_rho,
2538      which is also invoked through convective_adjustment).
2539    o recomputations in find_rho for cases
2540     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2541    o #define ATMOSPHERIC_LOADING should be differentiable
2542    o ini_forcing shifted to begining of initialise_varia
2543    o Incorporating QNVS line search routines into MITgcm
2544      (this is separate code, and therefore not under pkg)
2545      lsopt/, optim/
2546    o Updated verification/carbon/
2547      - #define GM_VISBECK_VARIABLE_K
2548      - GM_taper_scheme    = 'ldd97'    
2549    
2550    checkpoint46n_post
2551    Merging from release1_p8:
2552    o verification/natl_box:
2553      updating new external_fields_load routine
2554    o New package: pkg/seaice
2555      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2556      The sea-ice code is based on Hibler (1979-1980).
2557      Two sea-ice dynamic solvers, ADI and LSR, are included.
2558      In addition to computing prognostic sea-ice variables and diagnosing
2559      the forcing/external data fields that drive the ocean model,
2560      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2561      The implied surface heat flux is then stored in variable
2562      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2563      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2564      non-local transport term.  Because this call precedes model
2565      thermodynamics, temperature under sea-ice may not be "exactly" at
2566      the freezing point by the time theta is dumped or time-averaged.
2567      N.B.: fairly large differences in accuracy occur across
2568            different platforms/compilers; comparison between
2569            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2570            generated output gives:
2571       T           S           U           V
2572      C D M    c        m  s        m  s        m  s        m  s
2573      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2574      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2575      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2576    
2577      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2578    o GAD:
2579      - generated new common blocks to account for call of
2580        same gad routines with differing traceridentities
2581        (needed to modify tracerIdentity indices in GAD.h)
2582      - generated separate common blocks for case useCubedSphereExchange
2583        (Department of Futurology)
2584      - parameter lists to gmredi_?transport: added tracerIdentity
2585      - added new key indices to tamc.h
2586    o external_fields_load:
2587      - added this routine to TAF list
2588      - needed to make some common blocks global and additional storing
2589        along the same lines as exf package (checkpoint_lev?_directives.h)
2590    o exf:
2591      updated external forcing package
2592      - bug fixes carried over from ecco-branch
2593        (missing OBCS_OPTIONS.h in two routines)
2594      - enable easy to use "no forcing".
2595      - added exf I/O for atmospheric loading
2596      - added exf I/O for runoff data
2597      - transfered scaling between exf <-> MITgcm to exf namelist
2598    o Adding new verification experiment global_with_exf.
2599      This verification experiment is almost identical to the
2600      global_ocean.90x40x15 experiment, except that it uses
2601      the exf (and cal) package instead of the
2602      external_fields_load routine (cf README file).
2603    
2604    checkpoint46m_post
2605    o modified testscript to return -- when there are no lines of "%MON" output
2606    o added new flag "quasiHydrostatic" for QH mode
2607      and new routine quasihydrostaticterms()
2608    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2609      New routine: mom_u_coriolis_nh()
2610    o fixed sign of non-hydrostatic metric terms in u and v equations.
2611      Depend on correct sign of gravitySign.
2612    o added work.pc* to .cvsignore in aim directories using ifc
2613    o introduced flag for controllin non-hydrostatic metric terms
2614    o removed gravitySign from PARM04
2615    o switched to g77/ifc from pgf77 in aim experiments
2616    
2617    checkpoint46l_post
2618    o made convective adjustment work with pressure coordinates:
2619     - changed the direction of k-loop in convective_adjustment.F for the
2620       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2621     - adjusted the reference pressure k-index in convective_adjustment.F
2622     - adjusted the convection condition in convect.F (in analogy to
2623       calc_ivdc.F)
2624     - convective_adjustment no longer computes anything on the halos
2625     - removed the warnings about negative salinity from find_rho.F and
2626       find_alpha.F; instead the new routine look_for_neg_salinity, called
2627       at the beginning of find_rho, find_alpha, and find_beta, does a
2628       check of the entire slice, if CPP-option
2629       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2630    checkpoint46l_pre
2631    
2632    checkpoint46k_post
2633    o fixed the verification/global_ocean.90x40x15 experiment:
2634     - new bathymetry (the world according to A., JMC, and M.)
2635     - new initial fields and forcing fields (*.bin files)
2636     - new POLY3.COEFFS (for the next release one should switch to a full
2637       equation of state: JMD95P or MDJWF)
2638     - fixed several errors and redundancies in the data file
2639     - experiment uses looped cells
2640     - added matlab directory with diagnostic scripts for plotting of output
2641    
2642    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2643     - read AIM physics parameters from a file (data.aimphys)
2644     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2645    
2646    checkpoint46j_post
2647    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2648    o move wVel computation at the end of the time step, in S/R integr_continuity
2649    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2650    o update timeave pkg for wVel diagnostic.
2651    checkpoint46j_pre
2652    
2653    checkpoint46i_post
2654    o Clean up AIM package (and keep the results unchanged):
2655      include CPP_OPTION and use IMPLICT NONE in all routines ;
2656      declare all the variables _RL ; use _d 0 for all numerical constants.
2657      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2658    
2659    checkpoint46h_post
2660    o cleaned up the use of rhoNil and rhoConst.
2661      - rhoNil should only appear in the LINEAR equation of state, everywhere
2662        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2663        and the dynamical equations are all divided by rhoConst
2664    o introduced new parameter rhoConstFresh, a reference density of fresh
2665      water, to remove the fresh water flux's dependence on rhoNil. The default
2666      value is 999.8 kg/m^3
2667    o cleanup up external_forcing.F and external_forcing_surf.F
2668      - can now be used by both OCEANIC and OCEANICP
2669    checkpoint46h_pre
2670    
2671     Added code to convert surface volume flux (fresh water) into
2672     a mass flux when using P coordinates in the ocean (OCEANICP).
2673     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2674    
2675    checkpoint46g_post
2676    o Include a new diagnostic variable phiHydLow for the ocean model
2677      - in z-coordinates, it is the bottom pressure anomaly
2678      - in p-coordinates, it is the sea surface elevation
2679      - in both cases, these variable have global drift, reflecting the mass
2680        drift in z-coordinates and the volume drift in p-coordinates
2681      - included time averaging for phiHydLow, be aware of the drift!
2682    o depth-dependent computation of Bo_surf for pressure coordinates
2683      in the ocean (buoyancyRelation='OCEANICP')
2684      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2685        Theta, Salinity, and Pressure in the parameter list. This routine is
2686        presently contained in find_rho.F. This routine does not give the
2687        correct density for 'POLY3', which would be a z-dependent reference
2688        density.
2689    o cleaned up find_rho
2690      - removed obsolete 'eqn' from the parameter list.
2691    o added two new verification experiments: gop and goz
2692      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2693    checkpoint46g_pre
2694    
2695    checkpoint46f_post
2696    o Enable tangent linear (forward mode) gradient checks:
2697      - extended active file handling to g_... files
2698      - added TANGENT_SIMULATION to theSimulationMode
2699      - extended grdchk package accordingly
2700    o added tangent linear setup in verification/carbon/code_ftl
2701    o added adjoint setup in verification/front_relax/code_ad
2702    
2703    checkpoint46e_post
2704    o Added new equation of state -> MDJWF
2705      - EOS of McDougall et al., 2002, JAOT, submitted
2706      - caveat: the equation of state is only valid for a smaller (more
2707        realistic?) range of values than JMD95P/Z and UNESCO
2708      - added masks to the calculation of pressure in store_pressure
2709      - added more check values for density in check_eos (ini_eos.F), some of
2710        the old check values are out of the range of the MDJWF-eos, so don't
2711        expect perfect matches for those
2712    checkpoint46e_pre
2713    
2714    checkpoint46d_post
2715    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2716      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2717      case of pressure coordinates. eosType='JMD95Z' in
2718      combination with buoyancyRelation='OCEANICP' now causes an error.
2719    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2720      in find_alpha/beta.
2721    checkpoint46d_pre
2722    
2723    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2724      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2725    
2726    checkpoint46c_post
2727    o Changes necessary for ocean in p-coordinates
2728     -  Added new buoyancy relation = 'OCEANICP'
2729     -  Added new parameters = gravitySign (this used to be contained inside
2730        the factor dRdZ which I added when we first switched to R coordinates).
2731     X GM/Redi is not compatible (yet)
2732     X bottom drag and no-slip need to be debugged.
2733    checkpoint46c_pre
2734    
2735    checkpoint46b_post
2736    o Added new equation of state -> JMD95Z and JMD95P
2737      - EOS of Jackett and McDougall, 1995, JAOT
2738      - moved all EOS parameters into EOS.h
2739      - new routines ini_eos.F, store_pressure.F
2740    o Added UNESCO EOS, but not recommended because it requires
2741      in-situ temperature (see JMD95)
2742    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2743      unesco.f to be used with POLY3
2744    checkpoint46b_pre
2745    
2746    checkpoint46a_post
2747    o Added (atmospheric) pressure loading
2748      - new field in FFIELDS.h, etc...
2749      - new cpp flag ATMOSPHERIC_LOADING
2750    o Changed hFacC to _hFacC in calc_phi_hyd.F
2751    o Added SHORTWAVE_HEATING to some files for consistency
2752    checkpoint46a_pre
2753    
2754    checkpoint46
2755    further merges from release1_p5
2756    o new ctrl package
2757      - adopted from ECCO environment to enable optimization
2758      - added Eliassen Palm fluxes to controls
2759    o added Eliassen Palm flux controls to gradient check package
2760    o cost package
2761      - Compatible with new ctrl package
2762      - added Eliassen Palm cost hooks
2763      - modif's of existing cost functions
2764    o Adjoint-related bug fixes in kpp:
2765      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2766      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2767    o autodiff package
2768      - flow directives:
2769        + new for S/R do_the_model_io
2770        + enhanced for S/R checkpoint
2771        + new gmredi.flow
2772      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2773        disable adcommon.h/g_common.h by default.
2774      - fixed problem for adjoint of global_max
2775    o modified verification/carbon/
2776    o New setup for adjoint of global_ocean
2777    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2778    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2779    o incorporated hooks for sponge layer code (external_forcing.F)
2780    
2781    checkpoint45d_post
2782    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2783    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2784      (affects plume_on_slope "cg2d" output)
2785    o add new parameter deltaTfreesurf for free-surface time stepping
2786    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2787    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2788    o change phiMin in exp1 (to agree with documentation)
2789    o add new flags:
2790     - T,S forcing inside/outside Adams-Bashforth
2791     - turn off temp,salt advection and/or forcing
2792     - for each tracer, define internal flag for multiDimAdvection & A-B
2793    o monitor: change definition of KE to check conservation of Energy
2794    
2795    checkpoint45c_post
2796    o Removed f90 comments ("!")
2797    o Modified initialisations to enable exf package for MITgcm
2798      (without invoking ECCO_PACKAGE).
2799    o modifications to gradient check package (Martin Losch)
2800      - enable centered differences
2801      - modified format of standard output
2802    
2803    checkpoint45b_post
2804    o cleaned exchange calls in cg2d
2805    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2806    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2807      to configure barotropic setup (Martin Losch)
2808    o moved some initialisations within bi,bj loop in dynamics
2809      (TAF flow dependency)
2810    o in initialise_varia, moved call packages_init_variables
2811      before convective_adjustment_init
2812      (corresponding adjustment of TAF tape initialisation).
2813    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2814    
2815    checkpoint45a_post
2816    o compute Rho over the whole domain (extend iMin,jMin indices)
2817    o specific exchange for X-slice domain (case Ny=1)
2818    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2819    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2820    
2821    checkpoint44h_post = checkpoint45
2822    o Fix to restore differentiability:
2823      place at which packages_init_variables is called in
2824      initialise_varia is crucial for reverse control flow.
2825    o modifications in GMRedi to enable stable adjoint
2826      (corresponding modif's in thermodynamics, dynamics)
2827    o added missing hook for sponge layer code in external_forcing
2828    o modified test cost functions
2829    o storing in gad_advection (plus removal of write(0,*)!
2830    o missing headers TR1.h added in convective_adjustment routines
2831    o errorMessageUnit set non-equal zero in eeboot
2832      (conflict on some platforms, e.g. IBM SP3)
2833    o modified carbon verif.
2834    
2835    checkpoint44h_pre
2836    o vertical grid option: allow to put the Interface at the middle between
2837      2 cell-centers ; replace delZ in pkg/kpp by drF.
2838    o GM Advective form: Tracers are advected using the residual transport (=
2839      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2840    
2841    checkpoint44g_post
2842    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2843      results) ; ifdef missing in thermodynamics.F
2844    
2845    checkpoint44f_pre,checkpoint44f_post
2846    o added PTRACERS package
2847      This allows an arbitrary number of passive tracers to be integrated
2848      forward simultaneously with the dynamicaly model.
2849      + Implemented so far:
2850        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2851        - I/O and checkpointing
2852        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2853      + Not implemented so far:
2854        - KPP
2855        - OBCS
2856      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2857        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2858        line in data.pkg.
2859      + This package is disabled by default since it increases storage.
2860    
2861    
2862    o testscript: added -cleanup option
2863    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2864                 b) enable to filter 2D fields.
2865    
2866    checkpoint44e_pre,post
2867    o re-wrote convective adjustment to use pre-calculated weights
2868      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2869      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2870      Original calls to convect() still in place.
2871    
2872    chkpt44d_pre,post
2873    o added missing EXCLUDE_MONITOR flags
2874    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2875      (incompatible typ in MIN/MAX expressions caused problems
2876      on IBM SP3)
2877    o in genmake added variable MAKEDEPEND
2878      plus resetting for case SunOS
2879    o added timer_stats.c routine for IBM SP3
2880    o removed variables in dynamics
2881    !!! I forgot to create tag chkpt44d_pre !!!
2882    !!! But chkpt44d_pre = chkpt44c_post    !!!
2883    
2884    o real fresh water flux implemented with non-linear free-surface.
2885    
2886    chkpt44c_pre,post
2887    o few fix (mask in shap_s2, EmPmR in external_field_load,
2888      USE_NATURAL_BCS in solve_for_P);
2889    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2890    
2891    checkpoint44b_pre/_post
2892    o merge of relevant stuff from the ecco-branch:
2893      - genmake: removed $S64 overwrite for case SunOS
2894      - pkg/exf: update and corrections for field swapping and obcs
2895      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2896                  harmonized between ECCO and MITgcm
2897      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2898                      updated checkpointing_lev... lists for obcs
2899      - model/src: minor changes in forward_step, plot_field
2900                   added directive for divided adjoint in the_main_loop
2901      - pkg/mdsio: added mdsio_gl_slice
2902    
2903    o check parameters & config (chkpt44a_pre,post)
2904    o OBC and NonLin_FrSurf.
2905    
2906    checkpoint44
2907    o fix bug in mom_vi_del2uv
2908    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2909    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2910    o update AIM experiments (NCEP input files)
2911    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2912    o added some stuff for AD
2913    
2914    checkpoint43
2915    o added two new advection tests
2916    o added global 4x4 degree ocean test
2917    o added test of H&S94 with free surface on cube
2918    o some final mods for gradient check, adjoint,...
2919    
2920    checkpoint42
2921      Fixed AD-related problems:
2922    o Store directives up-to-date with re-arranged Adams-Bashforth
2923      (mainly thermodynamics.F)
2924    o New store directives for multi-dim. advection schemes
2925      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2926      * new common block and key passkey
2927      (mainly gad_advection.F)
2928    o Modified store directives for split of dynamics/thermodynamics
2929      for the case ALLOW_KPP
2930    o Cleaned argument list for timestep_tracer.F
2931    
2932    checkpoint41
2933    o re-formatted/added comments in prologues of key subroutines
2934      to work with protex
2935    
2936    checkpoint40
2937    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2938    o added FLT (floats) package from Arne along with demo. experiment
2939    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2940      implementation of forward-in-time forcing terms
2941    o more mods for non-linear free-surface including new variable
2942    o modified multi-dim method to work on cube
2943    o bug fix in KPP (from DM)
2944    
2945    checkpoint40pre9
2946    o added DST advection schemes
2947    o fix MPI bug on SGI's
2948    o modifications for non-linear free-surface
2949    o fixed conditionals for fixed flow/passive tracer only mode
2950    o added tension/strain form of stress tensor
2951    o changes to commenting of arguments for TAF/TAMC
2952    o added/updated many matlab scripts
2953    o added multi-dimensional advection method for tracers
2954      
2955    checkpoint40pre8
2956    o new package rw/
2957      Added method for dumping intermediate local arrays:
2958      mdsio_writetile - same as mdsio_writefield except works from inside
2959                        bi,bj loop
2960      mdsio_writelocal - same as mdsio_writetile except works for local
2961                         arrays
2962      write_local_r? - higher-level wrapper for mdsio_writelocal
2963      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2964      Example given at end of mom_vecinv.F that dumps some local arrays.
2965    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2966      control flux-form versus vector invariant code.
2967      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2968      or genmake -DISABLE ...
2969    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2970      (additional storing is now needed for case vecinv;
2971      currently nothing implemented to switch this storing off
2972      in case fluxform is used since no CPP flag available).
2973    
2974    checkpoint40pre7
2975    o bug fix in dynamics.F
2976      calc_viscosity called before k=1,Nr loop.
2977    o added some #ifdef's ALLOW_PASSIVE_TRACER
2978    o cleaned initialisations in ctrl_map_ini
2979      related to TAF
2980    
2981    checkpoint40pre6
2982    o split dynamics into thermodynamics & dynamics
2983    o corresponding split of calc_diffusivity into
2984      calc_diffusivity, calc_viscosity
2985      (kpp_calc_diff, kpp_calc_visc).
2986    o Added diffkr, kapgm to control variables
2987    o bug fix in gmredi_slope_limit for ldd97
2988    
2989    checkpoint40pre5
2990    o proper initialization of Adams-Bashforth time stepping
2991      + uses forward step for very first step of model (iter=0)
2992    o re-generated *all* output since almost all output is modified by this
2993      change (sorry but we've been putting this one off for about 2 years)
2994      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2995        *not* regenerated since they are already out of date and I don't
2996        want to create the impression that they are suddenly working.
2997    o removed KAP stuff for DEC's
2998    o modified/added many .cvsignore files in */code and */input
2999    o added new expt "solid-body.cs-32x32x1"
3000      + this uses an alternative form of ini_curvilinear_grid.F which
3001        is not necessarily any better than the current one...
3002    
3003    checkpoint40pre4
3004    o added re-initialisations of utrans,vtrans,rtrans in
3005      calc_common_factors which are crucial for TAF.
3006    o extended iMin,jMin range for calc_common_factors,
3007      calc_diffusivity
3008    o added option ALLOW_PASSIVE_TRACER
3009    o a few minor updates and fixes
3010    
3011    checkpoint40pre3
3012    o created calc_gtr1.F for gad package
3013    o split the_main_loop and re-introduced forward_step
3014    o some recomputations of nIter0 for TAMC
3015    
3016    checkpoint40pre2
3017    o Updated to latest branch of AJA, JMC
3018    o Added gradient check package
3019    o Added routines for passive tracer handling
3020    o Added carbon sequestration sensitivity experiment
3021    
3022    checkpoint39
3023     o Modifications and fixes to support TAMC
3024       (mainly missing or wrong directives)
3025     o Corrected common blocks when fooling TAMC to produce adjoint I/O
3026       in addummy_in_stepping
3027     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
3028     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
3029     o Included following packages:
3030       cal: calendar
3031       exf: external forcing
3032       ecco: essential routines to control use of cal, exf
3033             (NB: this is not the full ECCO environment)
3034     o disabled some packages by default in genmake
3035    
3036  checkpoint38  checkpoint38
3037   o see notes_c37_adj.txt   o see notes_c37_adj.txt
3038   o corrected wrong layer index in external_forcing_t   o corrected wrong layer index in external_forcing_t

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