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revision 1.16 by cnh, Tue Nov 3 15:31:08 1998 UTC revision 1.791 by jmc, Tue Apr 17 19:47:17 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: fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
8     ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
9    o pkg/exf:
10      move exf header files from lower_case.h to UPPER_CASE.h ;
11      add missing cvs Header & Name
12    o pkg/seaice:
13      - remove seaice_exch and seaice_exch_uv
14      - remove superfluous exchange of theta
15      - add myThid to seaice_budget_ocean/ice
16      - add new interface for atmospheric wind forcing (C-grid only)
17        + new routine
18        + two new field (taux, tauy for stress over ice)
19        + removed one global field (DAIRN) for C-grid case only
20    
21    checkpoint58y_post
22    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
23      vertical diffusivity, similar to that in MOM4; turned on using
24      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
25      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
26    o Added capability for 3D specification of background vertical diffusion
27      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
28      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
29      "data" file that contains the 3D vertical diffusivity coefficients.
30    o ice dynamics (pkg/seaice) with thsice thermodynamics:
31      - add code within pkg thsice to advect & diffuse sea-ice fields
32      similar to (and will replace) what has been added in  seaice_advdiff.F,
33      but: - conserving Mass, Heat & Salt.
34           - better when using non-linear advection scheme (not yet fully tested)
35           - can also be used in atmospheric set-up (for now, only the diffusion).
36    
37    checkpoint58x_post
38    o IO option for global-file compact format:
39      - add options when generating topology (utils/exch2/matlab-topology-generator)
40      - add I/O capability (pkg/mdsio).
41      - adapt utils/matlab/rdmds.m to read this format.
42      for now long-line format not yet supported by pkg/mdsio (& exch2).
43    o shelfice: add a few diagnostics
44    
45    checkpoint58w_post
46    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
47      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
48      (and replace horiVertRatio in NH code).
49      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
50                         and tutorial_plume_on_slope (sensitive to truncation)
51    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
52      directly to drive seaice model (C-grid only)
53    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
54     - reintroduce computation of wind from stress,
55     - compute tau (in exf_bulkformulae.F) from windstress averaged to
56       mass points to avoid tau = 0
57     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
58    o rdmnc.m: make it work with "global" files created with gluemnc
59    o rdmnc.m : some improvements in dealing with singleton dimension
60      (tested on all testreport mnc output files).
61    o genmake2: disable pkg/profiles if netcdf test fails.
62    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
63    o move call to cal_readparms up to make calendar parameters/variable available
64      to all packages
65    
66    checkpoint58v_post
67    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
68      useDynP_inEos_Zc tested.
69    o pkg/exf: changes to properly interpolate/mask/scale initial fields
70    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
71      and portions thereof.  See read_cs.txt for description and examples.
72    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
73      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
74      following the great-circle arc between those 2 points.
75    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
76      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
77    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
78     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
79     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
80     - still needs work (not working with some options ; efficiency to improve)
81       and serious testing.
82     - use this scheme for temperature & salinity in 2 advection test exp.:
83       advect_xy & advect_xz, respectively.
84    
85    checkpoint58u_post
86    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
87    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
88    o testreport: add option "-skipdir" to skip some test.
89    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
90      momentum calculation.
91    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
92    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
93      remove checkpoint.F and the_correction_step.F (no longer used);
94      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
95    o add option (linFSConserveTr) to correct for tracer source/sink due to
96      Linear Free surface
97    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
98    o pkg/thsice: fix reading mnc-pickups
99    
100    checkpoint58t_post
101    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
102    o pkg/mdsio:
103     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
104       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
105       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
106     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
107     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
108       either MDS_READ_FIELD or MDS_WRITE_FIELD )
109     - new S/R (to replace MDSWRITEMETA), which allows to write more
110       informations (variable names, time ...) to meta files.
111     - modify rdmds.m to give back the meta file content.
112    o pkg/diagnostics: change vertical interpolation to be safer, and more
113       flexible (define p-levels to interpolate to in data.diagnostics);
114      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
115       diagnostic pointer.
116    o pkg/seaice: more cleaning up of seaice_growth, added many comments
117    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
118    o fix multi-category seaice:
119     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
120       SEAICE_MULTICATEGORY
121     - fix short wave heat flux
122    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
123       and allow to use EVP solver. Change forward lab_sea: test both EVP
124       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
125    o Initial check-in of lab_sea adjoint
126      (very similar to natl_box_adjoint/code_seaice)
127      * used C-grid and EVP solver
128      * used KPP, GM/Redi
129      * uses inAdExact=.TRUE.
130      * gradient checks fail for both ADM and TLM
131        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
132        f.d. gradients actually seem more problematic than ADM, TLM gradients;
133        issue is related to forward mismatch between g77 an ifort
134    o pkg/seaice: overhaul of thermodynamics
135     - growth.F and groatb.F are replaced by new routine seaice_growth.F
136     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
137     - move a few global fields out of SEAICE.h into seaice_growth.F and
138       make them 2D (FICE/QNETO/ ...)
139     - remove FO (it is the same as QNETO)
140     - introduce a few local fields to avoid modifying external fields such
141       as atemp, etc.
142    
143    checkpoint58s_post
144    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
145      changed exf_set_gen.F so that
146        genperiod=0 means input file is one time-constant field and
147        genperiod=-12 means input file contains 12 monthly means
148    o CG2D: use pre-computed solver main-diagonal (stored in common block);
149      this affects truncation error ; generate new output file for exp. which
150      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
151        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
152        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
153        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
154        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
155        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
156    o start implementation of deep-atmosphere and anelastic formulation
157    o verification: remove 2nd copy of input files and use script "prepare_run"
158      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
159    o mom_common/vecinv/fluxform: fix a few initialisation isssues
160    o profiles: fix for multithreaded case
161    
162    o diagnostics: rename few diags:
163      s/'PRESSURE'/'RCENTER '/g
164      s/'TICE    '/'oceFreez'/g
165      s/'TAUX    '/'oceTAUX '/g
166      s/'TAUY    '/'oceTAUY '/g
167      s/'SWFLUX  '/'oceQsw  '/g
168      s/DIFx/DFxE/g
169      s/DIFy/DFyE/g
170      and add few ocean-forcing diagnostics:
171      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
172    o modifications to pkg/seaice/growth.F and budget.F, which change results of
173      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
174      as actual snow thickness.  It now refers everywhere to effective snow
175      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
176    
177    checkpoint58r_post
178    o modifications to pkg/seaice/growth.F, which change results of
179      lab_sea experiment: fixes pertain to melting snow over open water, to
180      masking EVAP under sea ice, and to using the correct AREA variable for
181      computations of EVAP, PRECIP, HSNOW, and GHEFF
182    o add ability to read bathy, salt, and theta using MNC (off by def)
183    o add flooding algorithm and advection of HSNOW for pkg/seaice;
184      both are turned off by default and do no change any results
185    o seaice advection with pkg/thsice: a step toward the use of non-linear
186      advection scheme, but #ifdef or commented out for now (requires more EXCH).
187    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
188      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
189      in natl_box (affects results @ truncation level: update output.txt)
190    o multi-threading and IO:
191      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
192      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
193        (needed to work with SingleCpuIO): tested in all verif. exp.
194    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
195      affects the results (but none of the verification test uses this scheme).
196    o Adding some pkg/diagnostics capability to pkg/seaice
197      (will certainly be subject to changes)
198    o ctrl: adding new control variables:
199      lwflux, lwdown, evap, snowprecip, apressure, runoff
200    
201    checkpoint58q_post
202    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
203      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
204      high_res_cube configuration by 4% on Columbia.
205    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
206      add (in global_with_exf/code) a version of EXF_INTERP_READ without
207      dynamical allocation (seems to work in multi-threaded).
208    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
209      single CPU io) so that TAF does not have to see EESUPPORT.h
210    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
211    
212    checkpoint58p_post
213    o obcs: stop if obcs is used with useCDscheme = .true.
214    o shelfice:
215     - fix a sign error so that no slip at shelfice interface works
216     - remove stop for combination non-hydrostatic code and shelfice. That does
217       not mean, that the results are correct, but at least they are numerically
218       stable
219    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
220    o added adjoint exch routined for all exch*3d* routines
221      and updated flow directives
222    
223    checkpoint58o_post
224    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
225      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
226    o change controling S/R for writing pickup file (new S/R do_write_pickup)
227      and clean-up reading/writing of pickup files.
228    o fix local version of read/write pickup (NH part) in rotating_tank/code
229    o simplify EXCH interface:
230     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
231     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
232    o added the regrid package
233    o shelfice:
234     - add a simple boundary layer scheme to reduce noise
235     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
236    
237    checkpoint58n_post
238    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
239       local variable (not in common block).
240    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
241      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
242      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
243        to work with SingleCpuIO.
244    o add "_d 0" to real constant of pkg/cfc subroutines ;
245       update exp. cfc_exemple & tutorial_cfc_offline output files.
246    o multi-threading and IO:
247      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
248        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
249      - barrier before and after reading.
250      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
251      - avoid using MDS_WRITELOCAL for LAND pkg output.
252      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
253        common-block variables ; Allows multi-threading with master-thread IO.
254    o change default MAX_NO_THREADS from 32 to 4 ;
255      and stop cleanly when MAX_NO_THREADS is too small.
256    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
257    
258    checkpoint58m_post
259    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
260       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
261    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
262       keep global_ocean.90x40x15 (for AD testing) with former secondary test
263       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
264    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
265        add MITgcm_tutorials (= code + all the tutorials)
266    o ecco, option to compute cost for total ssh (mean+anom)
267    o consistent with addition of ptracer and ssh in pkg/profiles
268    o profiles: adding ptracer and ssh
269    o testreport: change multi-test output-file name
270      (from output.txt.{name} to output.{name}.txt)
271    o profiles: now ok for mutli-tiles case
272    o seaice: add 4 parameters for different advection schemes for area,
273      (effective) seaice thickness, enthalphy, and snow height. Their default
274      is the standard parameter SEAICEadvScheme
275    o calc_gw:
276     - add cosFacU in zonal viscous flux (harmonic.visc.).
277     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
278       of tutorial_plume_on_slope.
279    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
280    o calc_gw: true flux-form, account for horizontal grid spacing.
281      update rotating_tank results, but not plume_on_slope (affected at
282      truncation level, 11 digits).
283    
284    checkpoint58l_post
285    o calc_gw:
286     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
287     - remove side-drag for now (need to fix it); update plume_on_slope results.
288     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
289    o commit code to make SST/SSS weights spatially variable
290      (based on either variable in-situ or variable initial T/S weights)
291    o pkg/ecco:
292      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
293        now based on horizontally varying weights wthetaLev, wsaltLev
294      * cost_averagesflags now returns year indices in addition to day, month
295      * sflux balance is performed on annual basis
296        (sflxumm, sfluxmm2, bal_sfluxmm)
297      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
298        including separate counting and multipliers
299    o pkg/rbcs
300      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
301    
302    checkpoint58k_post
303    o testreport:
304     - always build in dir. "build" (if not there, mkdir build instead of building
305       & running in input)
306     - run in dir run (if it exists), in build otherwise.
307     - call prepare_run (if input/prepare_run exists)
308     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
309    o pkg/exf modifications to interpolation and rotation routines for more
310       reasonable treatment of North Pole singularity: for tracers North Pole
311       value is set to northernmost zonal-mean value, for zonal velocity it is
312       set to zero, and for meridional velocity it is set to northernmost value.
313    o pkg/exf/exf_check_range.F
314     - add tile index to diagnostics and move stop statement to the very
315       end of the routine.
316    o pkg/diagnostics: (diagnostics_main_init.F)
317      define title of isomorphic variables according to the current config.
318    o pkg/thsice with pkg/seaice dynamics:
319    - fix domain of computation (interior only, required for exf) and do exchanges
320    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
321    o towards a standard way of dealing with multi-threading in MONITOR
322      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
323    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
324       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
325    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
326    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
327    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
328       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
329    o tracer advection:
330     - clean-up and simplify calc_common_factors.F
331     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
332       advection subroutine (but still not used within DST advection S/R)
333    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
334    
335    checkpoint58j_post
336    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
337      from file (collects calls previously in FORWARD_STEP)
338    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
339    o adjoint store dir. adjusted accordingly
340    o genmake2
341      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
342    
343    checkpoint58i_post
344    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
345      on wind stress (SEAICEstressFactor defaults to 1.)
346    o Total number of Timers is finite (<=40): comment out 2 non-essential one
347      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
348    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
349      on CS-grid: no longer loosing mass.
350    o exf & curvilinear-grid: no longer modify longitude xC & xG.
351    o pkg/ggl90: fix sloppy output and fix a bug
352    o pkg/seaice: added SEAICEuseEVPpickup parameter
353      - Set to false in order to start EVP solver with
354        non-EVP pickup files when using SEAICEuseEVP
355      - fix sign error in diffusion in seaice_calc_rhs
356    
357    checkpoint58h_post
358    * Modifications for bottom topography control
359      o replace hFacC by _hFacC at various places
360      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
361      o add non-self-adjoint cg2d_nsa
362      o update autodiff support routines
363      o re-initialise hfac after ctrl_depth_ini
364      o works for 5x5 box, doesnt work for global_ocean.90x40x15
365    * Adding verification for 5x5 box (4-layer) bottom topography control
366    
367    checkpoint58g_post
368    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
369       used for mean seasonal cycle, mean diurnal cycle); add an example
370       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
371    o pkg/ggl90:
372      - add parameter (minimum surface kinetic energy)
373      - fix bug (avoiding division by zero)
374    o couple pkg/thsice to pkg/seaice:
375      - modify advection in seaice to accomodate new scalar fields to be advected
376      - only muliDimAdection scheme work with seaice/thsice
377      - mapping of thsice-variables to seaice-variables, back and forth
378      - does not break the verification experiments, but does not give the
379        desired results either
380    o pkg/seaice
381      - make (default) second order advection a bit less confusing?
382    
383    checkpoint58f_post
384    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
385      to pkg/seaice):
386      - new routines thsice_map_exf and thsice_get_exf provide the interface
387      - add an additional formal parameter to thsice_solve4temp
388    o pkg/exf:
389      - add new fields wspeed, snowprecip (to be able to couple to thsice)
390      - correct Stefan-Boltzmann constant
391      - new parameter for longwave surface emittance
392      - separate some stuff from exf_bulkformulae into new routines  
393        exf_radiation, exf_wind
394      - add new parameters and constants: longwave emissivity for ocean, ice
395        and snow, evaporation parameters over ice
396      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
397        either wind from stress or stress from wind
398    o pkg/thSIce:
399    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
400    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
401       and THSICE_CALC_THICKN
402    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
403    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
404      to make debugging easier.
405    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
406    o pkg/bulk_force:
407      - clean-up comments and parameters ;
408      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
409    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
410      generate new output for test-experiment: aim.5l_cs.thSI
411    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
412      testreport accordingly
413    
414    checkpoint58e_post
415    o SEAICE_CGRID adjoint done
416    o R_STAR adjoint implemented.
417      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
418      * need to sort out init. of h0facc, etc.
419    o Make pkg/profile fully independent of ecco,cost, etc. stuff
420      to be able to use it in pure forward.
421    
422    checkpoint58d_post
423    o upgrade simple test-experiment to tutorial example:
424     step.1: duplicate the experiment and (step.2) will remove the old copy.
425      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
426      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
427      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
428      tutorial_global_oce_biogeo    <- copy of dic_example
429      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
430      tutorial_plume_on_slope       <- copy of plume_on_slope
431      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
432      tutorial_global_oce_optim     <- empty for now (David ?)
433      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
434     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
435    o correct a sign problem in cost_scat.F
436    o obcs and ptracers: fix boundary conditions for advections schemes
437      with larger stencil
438    o thsice adjoint: start
439    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
440      completeness
441    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
442      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
443    o ptracers adjoint:
444      * avoid extensive recomputatations
445      * fix missing re-init. of gptr (missed by TAF)
446    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
447      me to turn off the excessive output to STDOUT that this package produces
448    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
449      and add those terms in Vector-Invariant formulation.
450    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
451      if the control period (xx_hfluxperiod etc) is 0
452    o in profiles pkg, clean routines and fix details
453    o in ecco pkg, reading ssh data:
454      fix problem in case the model does not start at iter0=0
455    o fix mnc-pickup/restart for ptracers
456    o new package prifiles:
457      code to compute profile-based cost by Gael Forget
458      (modifs in ecco, ctrl, autodiff)
459    o Benign bug fix in initialization (spotted by M. Mazloff) of
460      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
461    
462    checkpoint58c_post
463    o adjoint: finish NLFS adjoint and provide reference output in
464      verification/global_ocean.90x40x15/results_ad_nlfs
465    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
466      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
467      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
468      with SEAICE_CGRID defined.
469    o move calendarDumps from "data" to "data.cal" and clean-up the code
470      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
471    o add useEXF & useCAL flags (for now, set in hard-coded way)
472    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
473      (were missing in NH mode, and wrong in quasihydrostatic mode).
474      waiting for Chris updated version of calc_gw to add those CALLs.
475    o fix bug in quasihydrostatic S/R ;
476      add a test for this option: global_ocean.90x40x15.qshyd
477    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
478      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
479    o add on/off flag useOffLine for package OFFLINE
480    o seaice:
481      - modify advection so that it works also on the C-grid
482      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
483        problem in multi-tile runs with C-grid
484      - add flags for clipping ice velocities and/or masking solver forcing
485      - fix drag (ocean on ice) formulation and a bug that caused noise in the
486        C-grid solver
487      - added a few comments to seaice_diffusion.F
488      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
489        are now exclusive)
490      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
491        required re-ordering the code a little:
492       + make DAIRN global variable (defined in SEAICE)
493       + move computation of the viscosities eta and zeta into a new separate
494         routine (because I need to recompute them in seaice_ocean_stress.F)
495    
496    checkpoint58b_post
497    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
498      update output.txt of exp. aim.5l_cs.thSI
499    o various mnc cleanups and improvements:
500      + shrink lookup tables by factor of ~4
501      + better error reporting when running out of lookup space
502      + able to handle longer path/file names (up to 500 chars)
503    o adjoint:
504      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
505      - TBD: "hidden" mom_vecinv recomp. in dynamics
506    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
507     (allow to differentiate between forcing components using new integer flags:
508      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
509     and add new flag to put Dissipation tendency out of Adams-Bashforth.
510    o ecco
511      - enable trend removal from SSH anomaly obs.
512    o adjoint
513      - a fix for PmEpR when #undef EXACT_CONSERV
514      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
515      - try to fix "hidden" recomp. in forward_step for NLFS
516        (NLFS seems broken sometimes after I checked it in)
517    o seaice:
518     - add c-grid version of the dynamic solver:
519       + three new routines that are the c-grid substitute lsr, dynsolver
520         and ostres
521       + put a few fields that were local to dynsolver into global common
522         blocks, so that I can move the computation of stresses etc into
523         seaice_lsr (saves coding but may break the adjoint).
524     - replace more hardwired parameters by runtime parameters
525     - add ice masks that mask the rhs of the implicit solvers where there
526       is no ice (commented out in seaice_dynsolver, because i am not sure
527       if this works properly), eventually this should replace the clipping
528       of ice velocities in seaice_dynsolver to +/-40cm/s.
529    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
530      include it only where its needed
531    o move balancing of fluxes before the call of external_forcing_surf
532    o seaice:
533      - correct units of turning angles (now they are really in degrees)
534      - move computation of GWATX/Y out of main routine into dynsolver
535      - initialize GWATX/Y in seaice_init
536    o Apply mask on Fresh-Water flux (needed for SSH forcing).
537      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
538    o seaice: add runtime flags for turning angles (default to zero)
539    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
540      and trend from exf forcing and ctrl control adjustments
541    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
542      (since checkpoint57x_post)
543    o change the default rotation period to 86164.s = the Earth rotation
544    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
545      and based on a reference stratification. Tested within hs94.cs-32x32x5.
546    o seaice advection: add code for choosing between the default (2nd order
547      central differences) and multiDim advection schemes provided by
548      pkg/generic_advdiff
549    o seaice:
550      - removed all references to SEAICE_GRID.h fields from
551        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
552        (cubed-sphere configuration will change a little)
553      - grid computations in seaice_init are obsolete now.
554      - cleaned up code a little so that is easier to read (hopefully).
555      - added new (better?) discretizations of default advection and diffusion
556        (turn on with SEAICEuseFluxForm)
557      - replace 1 in 3d global fields by kSurface in growth.F
558      
559    checkpoint58a_post
560    o seaice:
561      - bug fix in advect.F
562    o shelfice:
563      - separate shelfice load anomaly from pload (breaks with time
564        dependent forcing), => introduce constant field shelficeLoadAnomaly.
565        Its default is 0., but it may be computed more cleverly from (unknown)
566        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
567        done offline. A good approximation of the pressure load anomaly is
568        necessary to avoid large initial adjustment processes underneath
569        deep-reaching shelfice.
570      - small fix in ISOMIP shelfice_thermodynamics
571      - add more sophisticated thermodynamics of Hellmer (1989), this is
572        now the default
573      - give a few constants more intuitive names
574    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
575      if bulk formulae are used in long integration (especially EmPmR). Turn
576      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
577      if balancePrintMean, the imbalance that is substracted is printed to
578      STDOUT.
579    o fix bug (typo) in obcs_apply_eta.F
580    o add a new package shelfice which enables us to model the circulation
581      underneath shelf-ice with draughts of hundreds of meters.
582     - works
583     - to do: + include improved thermodynamics
584              + check whether kSurfC (from model/inc/SURFACE.h) can be used
585                instead of new field kTopC
586              + can we use topoFile, Ro_surf and existing code in ini_depth.F
587                instead of new field R_shelfIce and new code in ini_depth.F
588                and ini_mask_etc.F?
589              + adjust vertical mixing schemes?
590    o seaice pkg:
591     - add a cpp-flag to include a simple formula for a salinity dependent
592       freezing point of sea water at the surface
593     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
594       meridional stresses are now different (and hopefully correct)
595    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
596       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
597       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
598    o pkg/diagnostics: add options and parameters for regional-statistics
599       diagnostics ; define regions by reading a region-mask from a file
600       (might add other options later)
601    o pkg/bulk_force:
602     - add option and parameters to use AIM surface-flux formulae.
603     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
604       others forcing fields (defined in PARM05, parameter file "data") are loaded
605       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
606     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
607     - use the right EXCH call for uwind,vwind (to work on CS-grid).
608     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
609       and parameters (note: calcWindStress replaces .NOT.readwindstress).
610     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
611    
612    checkpoint58
613    o add "--embed-source" option to genmake2 which, when the supporting
614      tools can be compiled (as determined by genmake2) will turn on the
615      embed_files package which then embeds the entire MITgcm source code
616      (*.[fFhc] + Makefile) used for the build within the executable
617      - requested by CNH but off by default
618      - adds a paltry <9MB to the mitgcmuv executable in most cases
619      - only writes the output when useEMBEDSRC in eedata is true
620    o clean up 3-dim. relaxation codes:
621      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
622      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
623      * Thanks to Tom Haine for testing!
624    
625    checkpoint57z_post
626    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
627      affects output (@ truncation level) of exp. plume_on_slope ; updated.
628    o fix the pickup behavior for obcs in combination with ptracers
629    o fix a bug in ptracers_external_fields_load
630    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
631      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
632    o transfered surface NH pressure to eta field (if exactConserv).
633    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
634         and update lab_sea output.txt file.
635    o completing 3-dim. relaxation code: additional term
636         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
637      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
638      * At compile time, in "EXF_OPTIONS.h" set
639          #define  ALLOW_CLIMTEMP_RELAXATION
640          #define  ALLOW_CLIMSALT_RELAXATION
641      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
642          tauThetaClimRelax3Dim = 15552000.0,
643          tauSaltClimRelax3Dim  = 15552000.0,
644      * 3 cases:
645          1) Use a constant-in-time 3-dim. field
646          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
647          3) Real-time relax. to time-evolving prescribed field
648    o Adding Laplacian-type smoothness constraint on
649      initial and boundary (forcing) controls (ic, bc)
650      * enable at compile-time via
651        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
652      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
653      * Absolute scale somewhat unclear so far
654      * no area weighting was included since no other cost term does so far
655    
656    checkpoint57y_post
657    First step for a NLFS adjoint
658    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
659    o new init. routines for calc_r_star, calc_surf_dr
660    o still need to deal with ini_masks_etc
661    o testreport seemed happy
662    checkpoint57y_pre
663    
664    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
665    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
666    o add new offset feature to offline pkg (plus minor cleanup)
667    o cfc fixes for final year of integration
668    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
669      be in GCHEM_OPTIONS).
670    
671    checkpoint57x_post
672    o fix testreport Pb in multiple test experiment.
673    o cleanup our namelist syntax in verification:
674      - make it more F95 standards compliant (some work still needed)
675      - allows the vast majority of our tests to work with gfortran
676    o Non-Hydrostatic:
677     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
678     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
679    o Allow to apply AB on T,S rather than on AB(gT,gS):
680     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
681     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
682       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
683     - need a "clever" read_pickup to restart from the other AB formulation
684    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
685    o remove some unused variables (reduces number of compiler warnings)
686    o adjoint
687      * Disable useVariableViscosity for adjoint for time being
688        (there are a number of extensive recomputations)
689      * Initialize certain variables needed for adjoint
690    
691    checkpoint57w_post
692    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
693                 fix the singleCpuIO RS version of MDSWRITEFIELD
694       and add a WARNING if using globalFiles=T with multi-processors.
695    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
696      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
697    o tracer advection scheme:
698      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
699       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
700       was not very convenient).
701      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
702       (further tests needed for the implicit DST & Flux-Limiter schemes).
703    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
704      and sRef for convenience, handy, when you want to initialize
705      ptracers in a large domain with a constant non-zero value. Also,
706      untangle ptracers_init.F a little.
707    
708    checkpoint57v_post
709    o change dome exp. to use variable viscosity in side-drag terms.
710    o remove all the files from the cfc_offline test since they are now
711      incorporated into tutorial_cfc_offline which has been producing
712      identical results for a few days of testing
713    o add new parameter: sideDragFactor to enable half-slip-side BC
714      and change side-drag S/R to use viscosity from mom_calc_visc
715      (can switch back by setting sideDragFactor=0.); affects results at
716      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
717       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
718    o vorticity & strain are now computed without masking, to account for
719      no-slip-side BC in variable viscosity calculation ; mask is applied
720      anyway later on, before computing advection/coriolis terms.
721    o modify exp4 to test new obcs support for reading from external files
722      and for passive tracers
723    o fix behavior of ptracers_monitor when monitor output is written to a
724      netcdf-file; still not independent of monitor.F (writes in the same
725      file).
726    o change default value of tRef (put a uniform, meaningful value for ocean
727      & atmos) and initialize sRef (was missing, as Martin mentioned).
728    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
729      to be proportional to enstrophy dissipation length.  Thus,
730       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
731      This is now consistent with Smagorinsky and with the manual.
732    
733    checkpoint57u_post
734    o OBCS and PTRACERS: add open boundary support for passive tracers
735      - either use homogenous (pseudo) v.Neumann conditions or prescribe
736        OB-values from file; this is not different from the way theta and salinity
737        are treated
738      - however, Orlanski-radiation conditions are not supported, and the model
739        will stop if you use pTracers and Orlanski at the same time.
740      - beefed up the rountine obcs_external_fields_load: now only those open
741        boundary values are overwritten with values from files for which there
742        are really files, otherwise the OB-fields remain untouched. This makes
743        it possible to use different OBs at different ends of the domain (as
744        with EXF)
745    o reduce number of exch calls in shap_filt (s2).
746    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
747      truncation level) 4/5 MLAdjust test results (11&12 digits match).
748    
749    checkpoint57t_post
750    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
751    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
752      same truncation, independent of the face number: affects affects several
753      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
754    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
755      note that biharmonic viscosity + no-slip was not tested in any experiment.
756    o fix bug in non-linear free-surf side-drag ; generate new output for
757      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
758    o make mnc honor the writeBinaryPrec flag for most kinds of output
759    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
760    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
761      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
762    o add brackets in multi-terms sum to get same truncation, independent of
763      the face number (manage to get exactly same value of gU,gV at the cs-edge)
764      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
765    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
766      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
767      a maximum grid-scale Reynolds number.  Also, changes all length calculations
768      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
769      Suggested values of viscosity parameters found in mom_calc_visc.
770      Many new viscosity diagnostics available.
771    
772    checkpoint57s_post
773    o Add clearing-house for viscosity calculations, mom_calc_visc and
774      correct numerous bugs in LeithD and Smagorinsky discretizations.  
775      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
776      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
777      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
778      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
779      The Strain-Tension form is now called with useStrainTensonVisc=.true.
780      ViscAhStrain and viscAhTension are now retired.
781    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
782    o In response to JMC's bug report, genmake2 now ignores any soft-links
783      that it finds in the *current* directory when searching for files.
784      Soft-links found in any other source directories will still work as
785      they did before.
786    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
787      a C routine to unlimit the stack size
788    o mnc-ify pkg/aim snapshot vars
789    o mnc-ify pkg/land as requested by Daniel
790    o various changes to mnc including:
791      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
792      - output can now be grouped so that all files within a group
793          change the ITER portion of their names in lock-step together
794      - can now read ("global") PER-FACE (in addition to PER-TILE) files
795          and works with both EXCH1 and EXCH2 (but needs more testing)
796      - writing works for all verification test cases w/ g77 on Linux
797    
798    checkpoint57r_post
799    o make MNC variable initialization happen earlier
800    o add diagnostics for (almost) each term of the momentum Eq.
801    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
802    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
803    o remove MINIMAL_TAVE_OUTPUT option ;
804      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
805    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
806      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
807    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
808    o add time-dependent SST, SSS control
809    o cost terms in ecco/ modularized (new cost_generic.F)
810    o cost_averages routines are modularized (new cost_averagesgeneric.F)
811    o new infrastructure for seaice model vs. obs misfits in seaice/
812      * driver from the_main_loop.F is seaice_cost_driver.F
813      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
814      * gradient check in Exp. 6a of natl_box_adjoint/
815    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
816      (see README file)
817    
818    checkpoint57q_post
819    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
820    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
821      - bug was reported by Jean-Michel and Ian Fenty
822    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
823      update exp. cpl_aim+ocn output.
824    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
825      Needed for high-res. runs with large global files
826      to be able to limit tapelev size
827    o Changed some tests for adjoint:
828      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
829      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
830      * global_ocean.90x40x15/ back to default 3-level checkpointing
831    o Modifications to enable scripted COMMON to MODULE conversion
832      * verification/OpenAD/code/ has necessary scripts and description;
833      * converts, compiles and runs successfully;
834    
835    checkpoint57p_post
836    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
837    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
838      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
839    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
840    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
841      (was already the case for dissipation with mom_vecinv,
842       and also the case for grad.PhiHyd when staggered-timeStep)
843      This will allow to put dissipation out-off the AB time-stepping.
844     Unfortunately, affects truncation error. Update output of exp. that "fails"
845      (cg2d matching number) and leave the others for later: front_relax(10),
846      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
847      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
848    
849    checkpoint57o_post
850    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
851      (2) its ready to be documented during the 20050801 DocFest
852    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
853      for ideal_2D_oce and lab_sea on linux_ia32_g77
854    o set to #undef CTRL_SET_OLD_MAXCVARS_30
855      in global1x1_tot/code_seaice_adj to access indices 32, 33
856      (worth another tag)
857    
858    checkpoint57n_post
859    o adding precip control xx_precip 32
860    o adding swflux control xx_swflux 33
861    o Replacing 10 forcing penalty cost routines by 1 generic.
862    o Implementing partitioning in time-mean and variable adjustment
863      for atmos. state.
864    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
865    o in natl_box_adjoint:
866      * updated exp 1 to 10
867        (but does not have time-mean vs. variable split results yet)
868    o updated global1x1/*_seaice_adj/
869      to incorporate latest changes
870    o enable useSingleCpuIO for mdsio vector routines
871      (applies in particular to tapelev I/O)
872    o removed inefficient K-loop in all active_file*control*.F
873    
874    checkpoint57m_post
875    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
876      and advect_cs (use EXCH-2 and standard cs-32 grid files).
877    o pkg/exch2: filling of face-corner halo regions is optional
878      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
879    
880    checkpoint57l_post
881     tag before updating tutorials (pre-release-2)
882    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
883       for output and interpolation of input fields onto model grid)
884    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
885       Affects results of exp. rotating_tank ; update output.txt.
886    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
887          and taking the square quantity and/or using a fraction-weight field.
888    o fix aim_diagnostics_init.F mate numbers.
889    o add mnc output capability to diagnostics/diagstat and update
890      our cvsignore files for the ACSII output generated
891    
892    checkpoint57k_post
893    o lab_sea now uses diagnostics package and provides a suite of
894      new EXF diagnostics output.
895    
896    checkpoint57j_post
897    o exf
898      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
899        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
900        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
901      * extended diagnostics output
902        - now includes all EXF variables
903        - hs, hl moved to common block
904        - separate S/R for diagnostics, called after ctrl vector is added
905        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
906        - EXFqnet contains true Qnet (i.e. includes qsw)
907      * updated verif. lab_sea, global_with_exf
908      * Rearranging hflux (exf_mapfields -> exf_getforcing)
909        to ensure that diagnostics sees a true EXFqnet
910    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
911    o diagnostics pkg: change pointers so that 1 diagnostic can be used
912      several times with different frequencies.
913    o mnc-ify the thsice package as requested by Daniel Enderton
914      - the monitor--MNC output needs work
915      - many attributes need to be added (most are currently blank)
916    o mnc-ify theaim_v23 package as requested by Daniel Enderton
917      - many attributes need to be added (most are currently blank)
918    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
919    o add Sadourny like discretization to the 4th.O vorticity advection scheme
920    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
921      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
922         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
923    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
924     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
925    
926    checkpoint57i_post
927    o Diagnostics package was changed: diagnostic allocation is now deactivated
928      by setting an empty file name in the namelist (used to be by setting 0 frequency)
929    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
930      add 1rst Order upwind vertical Shear.
931    o add a quick fix for A/B checkpointing in OFFLINE mode
932    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
933      end-run around the C/Fortran linking horror in eesup/src/timers.F
934    o added pkg/runclock: allows user to terminate run based on wall clock
935    o added non-hydrostatic scaling parameter: nh_am2
936    o pkg/my82: futile attempt to make results compiler-independent by adding
937      some "_d 0", etc. no effect.
938    o for mnc output, fill the 'T' coordinate var with myTime and create a
939      separate 'iter' variable for iteration count
940    o pkg/diagnostics:
941      add new capability: output of Global/Regional & per-level statistics ;
942      tested against monitor output (including land & thSIce) on various exp.
943    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
944    
945    checkpoint57h_done
946      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
947      data.diagnostics, data.gchem, data.ptracers) is done.
948    
949    o pkg/diagnostics: prepare for Global/Regional statistics.
950      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
951    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
952      and rename it: DIFFERENT_MULTIPLE
953    
954    checkpoint57h_post
955    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
956    o pkg/diagnostics: change output frequency, now in seconds (instead
957      of Nb of iterations). This requires to change data.diagnostics.
958    checkpoint57h_pre
959    
960    o in mnc, let the user create the output dir if both mnc_outdir_date
961      and mnc_outdir_num are false
962    o add fflags() to pkg/diagnostics which allows one to specify, on a
963      per-file basis, the file precision [default behavior is unchanged]
964    o added diagnostics to pkg/kpp, including computation of mixed layer
965      depth based on a temperature/density criterion
966    o updated verification/natl_box to test the new pkg/kpp diagnostics
967    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
968    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
969    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
970      not mnc -- this mistake was found by JMC and is now corrected
971    
972    checkpoint57g_post
973    o add Adams-Bashforth 3rd Order time stepping:
974      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
975      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
976    checkpoint57g_pre
977    
978    o make lambda[Theta,Salt]ClimRelax spatially varying
979      (default remains spatially uniform constant based on tau)
980    o added new control variables
981      * init. uVel, vVel, etanN
982      * lambda[Theta,Salt]ClimRelax
983    o separate masks used for ctrl_pack/unpack 'from write_grid' output
984      (suggested by G. Forget)
985    
986    checkpoint57f_post
987    o add parameter "baseTime" = model base time = time at iteration zero
988      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
989      account for baseTime shift
990    o move Coriolis arrays from PARAMS.h to GRID.h
991    checkpoint57f_pre
992    
993    o mnc-ifying the seaice package
994    o introduced an alternative length scale calculation for use in the limiting
995      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
996    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
997    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
998      as well as grad(vort3).  Made it compatible with both approximate form
999      for the cubed sphere and full form of these gradients.  Added flag
1000      useFullLeith to select between approximate and full form.  
1001    o add "d0" in getcon.F to reduce differences between compilers/platforms
1002      update output.txt of exp. fizhi-gridalt-hs
1003    o change port_rand funtion to allow to set the seed.
1004    o fix obscure MNC bug involving conversion between reals and integers
1005      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1006        new version is now more standards-compliant
1007    o adjoint-related modifications
1008      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1009      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1010      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1011    
1012    checkpoint57e_post
1013    o Adding eddy stress controls a la Ferreira et al.
1014    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1015    
1016    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1017      update output.txt of exp. fizhi-gridalt-hs
1018    o add more "Z" dimensions and associated coordinate vars to MNC
1019    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1020    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1021      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1022      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1023      months and years.  Requires pkg/cal.
1024    o diagnostics: add pickup functionality
1025      - off by default for backwards compatibility
1026      - current version only uses MDSIO -- MNC will be added
1027    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1028    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1029    
1030    checkpoint57d_post
1031    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1032    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1033      output from the diagnostics package
1034    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1035    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1036      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1037    o add coordinate variables to the MNC output from the diagnostics package
1038    o change MNC-flags default value: true when useMNC=TRUE
1039    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1040      the ability (off by default) to read the grid information using MNC
1041    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1042    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1043    o do snap-shot diagnostics at the middle of the time-interval (instead of
1044      at the end).
1045    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1046      new test for AIM with thSIce + slab-ocean
1047    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1048    o move state variable diagnostics to the beginning of the time step ;
1049      (note: still needs some work specially for snap-shot diagnostics)
1050      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1051    
1052    checkpoint57c_post
1053    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1054    o generate new output.txt files on faulks with g77 & the new -ieee option
1055    checkpoint57c_pre
1056    
1057    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1058      update output.txt of exp. global_ocean.90x40x15
1059    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1060      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1061    o add saltFlux(+File) forcing capability with periodicExternalForcing
1062    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1063    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1064    o improvements for the MNC output from DIAGNOSTICS:
1065      - correct handling of the unlimitied dimension
1066      - all dims now have associated coordinate variables
1067      - variables located at U, V, and Corner ("Z") points are now written
1068        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1069        *all* data points are output
1070    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1071    o added pkg/seaice/seaice_monitor.F
1072    o mdsio_readfield.F can now read files visible only to master MPI process.
1073    o pkg/seaice: some test code for ice-modified ocean stress
1074    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1075      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1076      spurious negative numbers for precipitation and humidity.  Will cause
1077      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1078    o pkg/ctrl/
1079      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1080        May be enabled via doPackDiag
1081      *  introduce z-scaling of
1082         + gradient (doZscalePack) and
1083         + control (doZscaleUnpack)
1084    o pkg/mdsio/
1085      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1086      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1087    
1088    checkpoint57b_post
1089    o simplify options in diagnostics_fill arguments (remove weird combinations)
1090    o fix MNC coordinate variables so that they now contain per-face index
1091      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1092      general, EXCH2 grids are only aligned to a "local" coordinate system
1093    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1094    o Implement instantaneous output within pkg diagnostics:
1095      setting a negative frequency in data.diagnostics produces
1096     "snap-shot" output (as opposed to time-average if freq > 0)
1097    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1098      NOTE: change ptracer diagnostics name: use 2 characters to work with
1099            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1100    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1101      becomes the coordinate variable for the 'T' dimension
1102    o add CF-style coordinate variables to MNC
1103      - just a first cut:  numbers are meaningless on the cubesphere and
1104        missing along the T axis but otherwise it works!
1105    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1106    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1107    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1108      this is based directly on what the model compute, so that the content of
1109      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1110    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1111    o clean up build options files for SunOS, in particular
1112      - remove -traditional from xmakedepend
1113      - change -xarch=v9 to -xarch=native for f77
1114      - restore use of make (not gmake)
1115      - add CC=gcc if using g77
1116    o changes per discussion of AM, JMC, & EH3 today:
1117      - move redundant "grid" variables out of "state" -- in preparation of
1118        creating proper CF-style coordinate variables and in recognition
1119        that any/all grid variables can be easily copied (eg. w/NCO) from
1120        the grid files into any of the other NetCDF files
1121      - *always* output grid variables with MDSIO (this will eventually be
1122        changed)
1123      - output MNC grid file if useMNC is true
1124    o every instance of _END_MASTER() has been found and replaced with
1125      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1126      preprocessors
1127    o re-arrange diagnostics pkg initialisation:
1128     - allow each package to extend the available diagnostics list
1129     - add some checking and fix small problems (multi-threaded, ...)
1130     - new S/R diagnostics_fill (replace fill_diagnostics):
1131       look through the short list of active diag. (instead of the long list)
1132       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1133    
1134    checkpoint57a_post
1135    o this set of changes restores TAMC compatibility
1136      tested for global_ocean.90x40x15 adjoint on trough
1137      (what a pain)
1138    
1139    checkpoint57a_pre
1140    o some modifs in tools/build_options for sunos
1141    o call ctrl_pack for ctrl at end for optimcycle=0
1142    
1143    checkpoint57
1144    o add horizontal bi-harmonic viscosity for vertical velocity
1145      - new parameter viscA4W (defaults to viscA4)
1146      - affects only non-hydrostatic code
1147      - to be done: no-slip lateral boundary conditions
1148    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1149    o implement Implicit Vertical advection for pTracers
1150    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1151      (implemented also for implicit vertical diffusion & advection)
1152    o OBCS: extend application of tracer open boundary conditions
1153      to a strip beyond the boundary of width Olx/Oly
1154    o add call monitor to TAF set of required calls (flow directives)
1155      and include in natl_box_adjoint
1156    o untangle a few ifdefs related to cost, ctrl, autodiff
1157      untangel a few ALLOW_ECCO_OPTIMIZATION
1158    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1159      (theta2, salt2 in ecco_cost_weights)
1160    
1161    checkpoint56c_post
1162    o OBCS as control variables
1163      - update ctrl_ad_diff.list, obcs_ad_diff.list
1164      - remove balance of obcs controls from default
1165      - fix index bug nobcs in ctrl_init
1166      - fix dummy fields filen in ctrl_pack
1167      - add dummy weights for obcs
1168    o lsopt: comment out fort.94 output
1169    o optim:
1170      - remove unnecessary header files
1171      - adjusted namelists
1172      - add xerbla.F to Makefile
1173    o exf:
1174      - multiple modifications of exf_check_range
1175      - unit change in exf_init_runoff from [m/year] to [m/s]
1176    o mdsio:
1177      - i/o-vector change debugLevel from debLevA to debLevB
1178    
1179    checkpoint56b_post
1180    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1181      is called from DO_THE_MODEL_IO
1182      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1183      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1184      - clean up PTRACERS_WRITE_TIMEAVE a little
1185    o add another verification experiment that tests both the cfc-pkg and
1186      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1187      reactive tendencies treated inline with regular timestepping
1188    o testreport previously did a lousy job of comparing small numbers, so
1189      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1190      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1191      testreport.
1192    o ptracers_monitor: bug fix for MPI
1193    
1194    checkpoint56a_post
1195    o GCHEM: finish reorganizating the package
1196      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1197        (introduces another 3D-array for each passive tracer, but only if
1198        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1199        gchemTendency is not needed because the timestep is done separately)
1200      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1201      - GCHEM is now---more or less cleanly---separate from PTRACERS
1202      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1203        so clear to me how that should be done in a general way.
1204    o CFC: improve formatting of output in CFC_ATMOS
1205    o PTRACERS:
1206      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1207        that ALL experiments with ptracers enable can be checked. This makes
1208        GCHEM_MONITOR obsolete.
1209      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1210        monitorFreq
1211      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1212    o add PTRACERS (PTR0[1-5]) to testreport output
1213    o exf_check_range:
1214      * default changed to .TRUE.
1215      * will check values for niter0 if debLevA, every timestep if debLevB
1216      * STOP in exf_check_range if 'out of range'
1217      * range chosen generous to allow for potential extema
1218      TBD: a version with stricter range
1219           permitted range would be runtime parameters
1220    o GMredi:
1221      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1222      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1223      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1224    o GCHEM:
1225      - move call to GCHEM_FORCING_SEP, so that it is now called before
1226        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1227      - introduced a useGCHEM runtime flag and applied it everywhere.
1228      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1229        this flag is now only visible within GCHEM-pkg routines.
1230      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1231        be replaced by a 3D array that is computed before thermodynamics; for
1232        this, the tracer ID iTracer had to be included into the parameter list
1233        of ptracers_forcing
1234      - set up forward_step to call gchem_forcing, that will replace
1235        gchem_forcing_int in ptracers_forcing
1236      - cleaning up
1237    o small cleaning of exch2: remove files that are also in eesupp/src
1238    
1239    checkpoint56
1240    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1241    o mnc: cleanup "full" files--fixes out-of-memory problem
1242    o ECCO-GODAE
1243      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1244      * fully merged and updated from SIO code
1245        windstress sign change affects
1246        - exf_inscal_[u/v]stress
1247        - sign of xx_tau[u/v] adjustments
1248        - signs in cost_scat
1249      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1250      * natl_box_adjoint updated and compressed
1251      * 2-level checkpoint switch added
1252        (tested in EXP. 1 of natl_box_adjoint)
1253      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1254    o SVD
1255      * first complete, non-hacked version for SVD calculations
1256      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1257        performed via direct access files admtlm_vector.it????
1258        (via ctrl_[un]pack)
1259      * optimcycle is used for ARPACK iteration counter
1260        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1261      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1262        and add linear transforms where necessary
1263      * controls are initial/final SST, SSS (can be extended; need to check
1264        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1265    o mdsio: filename info to both stderr, stdout
1266    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1267      from sign change
1268    
1269    checkpoint55j_post
1270    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1271      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1272    o add consistent build directories and .cvsignore files to verification
1273    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1274    o make all subroutines 30 or less characters in length for certain older
1275      compilers to work (a thorough search only turns up two routines in
1276      pkg/ptracers)
1277    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1278      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1279    
1280    checkpoint55i_post
1281    o change arrays for total vertical diffusivity (2.D if explicit,
1282      3.D if implicit) ; each ptracer uses its own background value.
1283    o added mnc/NetCDF output capability to ocn_compon_interf
1284      - added bits to verification/cpl_aim+ocn so that it can run on
1285        ITRDA and other clusters without the mpirun "-wd" option
1286    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1287      configuration
1288    o give MNC the ability to create additional files rather than
1289      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1290      - the default is just less than 2GB which is a practical limit
1291        on many systems
1292    o Compute the non-local term using either KPP vertical diffusivity (=default)
1293       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1294    
1295    checkpoint55h_post
1296    o add verification test "vermix"
1297    o remove all the *_ioinc flags and replace with the single global
1298      outputTypesInclusive flag
1299    o allow to set a vertical profile of vertical diffusivity for T & S
1300    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1301    o useMNC moved from data.mnc to data.pkg
1302    
1303    checkpoint55g_post
1304    o Renaming carbon AD experiments to comply with testreport conventions
1305    o Updating adjoint of Held-Suarez hs94.1x64x5
1306    o Fixing directives for non-ECCO forward_step, after ECCO directives
1307      have been fixed to avoid recomp. of do_oceanic_phys
1308      Works well for global_ocean.90x40x15,
1309      but recomp. issue remains for carbon
1310    o Updating adjoint output for natl_box_adjoint after
1311      pkg/ecco has been modified (see taga c55d_post)
1312    
1313    checkpoint55f_post
1314    o rename to timeave_init_fixed
1315    
1316    checkpoint55e_post
1317    o some delicate re-shuffle of store directives to avoid one
1318      extra call of do_oceanic_physics
1319      affects ecco_the_main_loop.F, do_oceanic_physics.F
1320      checkpoint_lev1_directives.h
1321    o NB: this may break global_ocean adjoint temporarily,
1322      but it is clear how to fix it. Will do later, need this now.
1323    
1324    checkpoint55d_post
1325    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1326    o ecco_cost_weights is modified to 1x1 runs
1327    o modifs to allow observations to be read in as
1328      single file or yearly files
1329    o enable to read exf forcing fields as either
1330      single file or yearly files (flag useExfYearlyFields)
1331    checkpoint55d_pre
1332    
1333    o switch between 2-level and 3-level checkpointing
1334    o add ability of MNC to write local and "partial" (eg. 2D slices where
1335      the full 3D field is never actually stored) arrays to NetCDF files
1336      with the correct (that is, the complete multi-dimensional) set of
1337      array indicies
1338      - used in mom_vecinv() to write the diagFreq output
1339      - tested (demonstrated) in verification/aim.5l_cs
1340    o further mnc-ification
1341      - add verification/lab_sea to the list with mnc setups
1342      - fix undefined mnc v-names in cd_code
1343      - add kpp to mnc output (both snapshot and timeave)
1344    o non-hydrostatic code
1345      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1346        in calc_gw.F
1347      - defaults to viscAh
1348      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1349        friction or Leith) in non-hydrostatic mode, as long as there is
1350        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1351    o pkg/cost
1352      extend simple cost functions to treat time mean quantities
1353      (T,U,V) via cost_accumulate_state from cost_tile
1354    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1355        be 2 times larger than the minimum size the advection scheme requires.
1356        now get a perfect conservation of salt in advect_cs test-exp (updated)
1357    o GGL90 (Gaspar's TKE mixed layer)
1358      - add horizontal diffusion of TKE, requires exchanges in
1359        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1360        default. In OPA there is no horizontal diffusion of TKE but the
1361        mixing coefficients are computed from a horizontal average of TKE of
1362        6 points or so. I think that diffusion has a little more physical
1363        justification.
1364      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1365        was in vain)
1366      - mask tke-variable in ggl90_init
1367    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1368    o fix biharmonic diffusion on CS-grid.
1369    o more obcs stuff
1370      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1371        for reading boundary values. This routine is called from
1372        obcs_prescribe_read
1373      - updated obcs_check
1374      - changed sponge layer relaxation parameter units for days to seconds
1375      - turned off sponge layer by default
1376      - changed argument list of OBCS_CALC to myTime+deltaTclock
1377      - fixed about 35 bugs in obcs_external_fields_load
1378    
1379    checkpoint55c_post
1380    o obcs stuff
1381      - new runtime flags useOBCSprescribe, useOBCSbalance
1382      - re-arranged obcs_calc
1383      - moved exf_getobcs to obcs_prescibe_read
1384        obcs_prescibe_read is called after ORLANSKI stuff
1385        and independent of it (executable can contain all).
1386      - updated obcs_check
1387      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1388        These may be necessary only if tangential velocities are
1389        prescribed at OB, not sure, needs testing.
1390    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1391      which simplifies the calls and passes the ifc check-bounds test
1392    
1393    checkpoint55b_post
1394    o add a 2D scalar, Z location, exchange_2 routine.
1395    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1396      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1397      affects advect_cs results (for the wrong reason): update output.txt
1398    o use a more standard discretization for biharmonic viscosity ;
1399     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1400      affects results of dome set-up: update output.txt
1401    o fix gad_advection.F (CubedSphere part), back to version 1.23
1402    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1403    
1404    checkpoint55a_post
1405    o merged code to
1406      * prescribe/read time-dependent open boundaries
1407        (works in conjunction with exf, cal)
1408      * sponge layer code for open boundaries
1409      * each boundary N/S/E/W now has its own CPP option
1410        (healthy for the adjoint)
1411    
1412    checkpoint55
1413    o up-to-date adjoint of previous breaks
1414      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1415      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1416      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1417      - carbon: * remove tr1-related adjoint verification
1418                * add ptracer as control variable
1419    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1420      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1421    
1422    checkpoint54f_post
1423    o in verification/carbin/ remove experiment related to
1424      ALLOW_PASSIVE_TRACER (array tr1 etc)
1425      code_ad/ input_ad/ results_ad
1426    
1427    o add two new packages
1428      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1429        + subject to optimization (memory)
1430      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1431        + subject to reordering (many GOTOs in the original code)
1432        + so far opps is called for every (i,j) point, and then operates in
1433          the vertical; one may want to reorder the scheme in order operate in
1434          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1435          fields)
1436    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1437      - all verification tests compile and run with linux_ia32_g77
1438      - defaults are compatible with current input files--nothing
1439        should change if you were not previously using MNC
1440      - MNC output has been added in numerous places (eg. timeave)
1441        but there are still a few writes not yet do-able with MNC
1442        (this is in progress)
1443      - flags now allow for either/or/both use of MDSIO and MNC and
1444        documentation will soon follow
1445      - numerous small formatting cleanups for ProTeX
1446    o add version info (via BUILD_INFO.h) to MNC and stdout
1447    
1448    checkpoint54e_post
1449    o add two new packages
1450      - pp81 (Packanowski and Philander, 1981), Richardson number and
1451        stratification dependent mixing
1452      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1453      - these scheme operate in a similar manner as KPP (without ghat, of
1454        course), however there is only one diffusivity that is used for both
1455        temperature and salinity (and passive tracers)ç
1456    o add offline package
1457    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1458      provided by Stephanie Dutkiewicz
1459    o genmake2: add ability to search for C compilers and cleanup test output
1460      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1461    
1462    checkpoint54d_post
1463    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1464    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1465      leading to additional shift by 5 days each year of integration
1466       (i.e. leading to considerable offset over the years)
1467    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1468    o start with no AB and no initial filtering (staggerTimeStep):
1469      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1470    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1471      (external loading & cpl import/export stay in forward_step.F)
1472    o update coupling interface to work with new staggerTimeStep
1473    o change MDSIO ptracers_pickup.
1474    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1475    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1476    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1477    
1478    checkpoint54c_post
1479    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1480      this affects (truncation error) output.txt of test-exp:
1481       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1482    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1483    o change Qnet to always be the net heat flux, (+upward).
1484      affects (truncation error) output of natl_box exp.: updated
1485    o define the max number of passive tracers in PTRACERS_SIZE.h
1486    o start to test mnc routinely in exp0
1487    o add sea-ice loading (sIceLoad) as a new forcing field.
1488    
1489    checkpoint54b_post
1490    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1491       impressive on Altix and Opteron systems)
1492    o diagnostics can now write NetCDF files through the mnc package
1493    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1494    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1495    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1496      affects (truncation error) output of lab_sea & natl_box exp.: updated
1497    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1498    
1499    checkpoint54a_post
1500    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1501    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1502    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1503    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1504      + internal_wave (shift in writing cg2d_ini_res)
1505    checkpoint54a_pre
1506    
1507    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1508      - modified verification/lab_sea and natl_box_adjoint accordingly
1509    
1510    checkpoint54
1511    checkpoint53g_post
1512    o prepare splitting of thermodynamics: store convect.counter in common block
1513    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1514      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1515    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1516    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1517    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1518    o restore adjointability
1519    
1520    checkpoint53f_post
1521    o modifications that affect AIM experiment results (update output.txt):
1522      - no advection of S at top interface Nr (pkg/generic_advdiff)
1523      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1524    o AIM pkg:
1525      - include stability function into surf.Flux derivative relative to Tsurf
1526      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1527    
1528    checkpoint53e_post
1529    o merged cylindrical coord configuration
1530    o added rotating_tank experiment
1531    checkpoint53e_pre
1532    
1533    checkpoint53d_post
1534    o faulks upgraded: re-generate output.txt that have changed:
1535       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1536    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1537    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1538    o added Sadourny discretization of Coriolis
1539      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1540      - re-enabled use of omega3 (useAbsVorticity)
1541    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1542      vector-invariant equations
1543      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1544    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1545      hopefully without new bugs
1546      - still to do: biharmonic friction for non-hydrostatic w
1547    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1548    o regenerated output for global_ocean_ebm (using -ieee)
1549    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1550      of mom_common/
1551      - simple re-arrangement of instructions within computing loop
1552    checkpoint53d_pre
1553    
1554    checkpoint53c_post
1555    o new version of coupler for AIM+thSIce and Ocean models
1556     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1557     - land: change Evaporation of snow
1558     - aim with thSIce: fix bug in snow-precip.
1559    o changes to calc_gw.F
1560     - bug fix for w^2 term near the bottom boundary
1561     - (hopefully) improve the lateral slip boundary condtions for use with
1562        partial/looped cells
1563      - because the bug fix changes two verification experiments anyway (exp5
1564        and plume on slope), change the lateral boundary condition from half slip
1565        to the value of no_slip_sides
1566    o ebm package wasnt quite up to the parallel task. Fixed that.
1567    o Adjoint of EBM package + verification
1568      * TLM OK
1569      * ADM not sufficient accuracy yet (needs further testing)
1570    
1571    checkpoint53b_post
1572    o Commiting new energy balance model to repository
1573      * package is pkg/ebm
1574      * verif. is verification/global_ocean_ebm
1575      * references are in ebm_driver.F
1576    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1577    C        Global thermohaline circulation. Part I:
1578    C        Sensitivity to atmospheric moisture transport.
1579    C        J. Climate 12(1), 71-82
1580    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1581    C        Global thermohaline circulation. Part II:
1582    C        Sensitivity with interactive transport.
1583    C        J. Climate 12(1), 83-91
1584    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1585    C        Destabilization of the thermohaline circulation
1586    C        by atmospheric eddy transports.
1587    C        J. Climate 7(12), 1870-1882
1588    o Will need long integration testing.
1589    checkpoint53b_pre
1590    
1591    o created pkg/mom_common in preparation for variable viscosity code
1592    o renamed and split ini_mnc_io
1593    o pkg/land: only liquid water can diffuse or run-off
1594    o AIM using land: soil wetness availability account for snow
1595    o added printMapIncludesZeros to EEPARMS namelist
1596    
1597    checkpoint53a_post
1598    o restore TAMC compatiility for exf_constants.h
1599      (no usage of _d in .h)
1600    o Additional storing in KPP in an attempt to fix
1601      TAMC problem with adjoint of KPP code.
1602      (no success...)
1603      Identical code works fine with TAF.
1604    o Fixed verification/natl_box_adjoint experiments.
1605      Initial conditions for Experiments 4 and 5 are now
1606      set to "SEAICE_initialHEFF=0", which is more reasonable,
1607      and hence gives results closer to that of Experiment 2.
1608      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1609    
1610    checkpoint53
1611    o stable checkpoint with up to date adjoint
1612      TLM tests only run for 1st grdchk at the moment. Its unclear if
1613      this is a code problem or a problem with resetting code for g_
1614      variables that is being autogenerated wrong.
1615      Otherwise:
1616       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1617       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1618         are both still in chaos following their security messes.
1619    
1620    checkpoint52n_post
1621    o various build (mostly genmake2) changes including:
1622      - ability to build/run more easily within Cygwin and MacOS X
1623      - more complicated Makefiles with a stronger dependence on Gnu Make
1624    o pkg/seaice modifications
1625      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1626        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1627        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1628      - changed proxy for geostrophic velocity and updated
1629        verification/lab_sea/results/* accordingly
1630      - removed ADI dynamic solver from pkg/seaice
1631      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1632        they caused a segmentation fault under certain circumstances
1633      - removed unused field WATR
1634    o bug fix in exf-package:
1635      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1636         now reflect that.
1637    o small fixes in the cal-package:
1638      - set reference date to first of January for the 'model'-calendar
1639      - failing of cal_CheckDate in cal_FullDate now actually results in a
1640        warning
1641    o small modifications in exf-package to increase flexibility:
1642      - change climtempfreeze from a constant to a runtime parameter that
1643        is specified in data.exf_clim (default = -1.9)
1644      - introduce runtime parameter windstressmax (default = 2.0) that is
1645        specified in data.exf
1646    o fix in pkg/thsice:
1647      - update Evap (Tsf changes) to be consistent with Latent heat flux
1648      - maintain snow precipitation unchanged (even if Tsf >=0).
1649     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1650    
1651    checkpoint52m_post
1652    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1653      this does not change any of the results, because myIter=0 in swfrac always
1654      lead to jwtype=2 (the default anyway), but the call makes little sense
1655      as a default
1656    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1657    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1658      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1659    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1660    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1661    o extending useSingleCpuIO option to work with new exch2 I/O format
1662      - old-style, missing-tile I/O is still accessible by defining CPP
1663        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1664    o monitor package can write to NetCDF files and/or STDOUT
1665    o fix re-definition bug in MNC_GRID_INIT_ALL()
1666    o doc/api_reference added
1667      - a framework for building an API Reference Manual using all
1668        the "protex" comments embedded in the code
1669      - see pkg/generic_advdiff, pkg/mnc for examples
1670    o MNC:
1671      - make myThid the last argument for all subroutines
1672      - new default for the grid files: NO halos
1673      - add useMNC and other run-time flags
1674      - separate per-file-group handling of the unlimited dimension
1675      - early initialization of MNC w/ flags read at the eeboot stage
1676        and lookup tables set in initialize_fixed
1677      - write all MNC output to a freshly-created directory
1678    o thermodynamics sea-ice (thsice) is now tested with testreport.
1679    o test exp. advect_cs: use the standard cs32 grid ; update output.
1680    o Added functionality to grdchk:
1681      pick global i,j,k position (or nearest wet) where to perform check.
1682    
1683    checkpoint52l_post
1684    o new land formulation:
1685      a) use ground enthalpy as prognostic variable to ensure exact
1686         energy conservation.
1687      b) account for water temperature and for latent heat of freezing
1688         in all processes (rain, run-off, ground storage)
1689      c) compute surface and ground temperature implicitly.
1690    o aim_v23 modification for new land model:
1691      a) Treat separately land / ocean / sea-ice surface fluxes
1692         to allow implicit computation of land & sea-ice surface temp.
1693      b) add snow precipitation.
1694    checkpoint52l_pre
1695    
1696    o fix problem (when 1 tile is empty) in min/max monitor.
1697    o fix bug in timeAve (u,vZetatave in common block)
1698    o no restoring terms under ice for pkg/seaice
1699    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1700    o bug fix for pkg/seaice pickups
1701    o change MNC call locations and add coordinate attributes
1702    o mask vorticity at the corner ; affects global_ocean.cs output
1703    o fix ini_curvilinear_grid ; test CS experiments with mpi
1704    o aim.5l_cs: modify sea-ice fraction input file ; update output
1705    o exf: Adding simple range check routine for exf fields after read
1706    
1707    checkpoint52k_post
1708    o removed top-level directory "diags"
1709      - we migrated these functions to pkg/timeave a long time ago
1710    o fixed bug introduced in pkg/monitor
1711    o accuracy ctrlprec = 32 insuffient for gradient checks using
1712      averaged fields (I/O via cost_averages)
1713      -> use ctrl.h in active_file*.F to control I/O precision.
1714    o paramter list of CALL ADTHE_MAIN_LOOP
1715    o added initial do_the_model_io to ecco
1716    o set all ...Freq to zero after cost_final
1717      taveFreq, dumpFreq, pChkptFreq
1718    o MAIN and ECCO differentiability restored
1719    
1720    checkpoint52j_post
1721    o fix nchklev in tamc.h for global_ocean...
1722    o Bringing flow and store directives up-to-date
1723    o Really weird thing!
1724      call do_the_model_io from the_main_loop with parameters
1725      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1726      TAF places a faulty re-call of initialise_varia
1727      after cost_final call which should not be there!
1728    checkpoint52j_pre
1729    
1730    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1731      error messages
1732    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1733    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1734      debug output
1735    o modfied mdsio_writefield.F to handle non-global files under exch2
1736    o update AIM Cubed-Sphere exp (aim.5l_cs):
1737      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1738    o update AIM Equatorial Channel exp:
1739      use standard aim_v23 pkg and change the SST fields to be more realistic.
1740    o globalFile now works with exch2
1741    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1742      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1743    o limit timeave output for hi-res integrations
1744    
1745    checkpoint52i_post
1746    o removed CPP_EEOPTIONS.h from verification/*/code
1747    o updated the tiling for global_ocean_pressure
1748    checkpoint52i_pre
1749    
1750    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1751      the old pkg/aim).
1752    
1753    checkpoint52h_pre
1754    o shortened offending lines in exch2_send_rx?.template
1755    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1756    o genmake2: add build & execute test for NetCDF code
1757    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1758      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1759    o added useSingleCPUIO flag to monitor.F and mon_out.F
1760    o added temporary hack for sea-ice dynamics on the cube:
1761      metric terms are ignored and it is assumed that
1762      there is no sea-ice on cube faces 1, 2, 4, and 5.
1763    
1764    checkpoint52f_post
1765    o added exch2 cube routines to pkg/exch2
1766    o modified hs94.cs-32x32x5 to use it
1767    o added new grid files to hs94.cs-32x32x5
1768    checkpoint52f_pre
1769    
1770    checkpoint52e_post
1771    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1772      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1773    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1774      to work with implicit vertical advection and AB ;
1775    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1776    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1777     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1778    checkpoint52e_pre
1779    
1780    o fix bug in impldiff when Nr=1 or Nr=2.
1781    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1782    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1783    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1784      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1785    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1786    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1787    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1788    
1789    checkpoint52d_post
1790    o re-tiled many expts to allow comparison in multi-processor mode
1791      - updated output accordingly
1792      - changed hs94.128x64x5 to use intial T from file rather than use the
1793        random number generator
1794    o add infrastructure in model routines for fizhi and gridalt packages
1795    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1796    o changes to permit hi-res, cubed-sphere, configuration
1797      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1798      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1799      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1800        of surface winds for the cube
1801      (A verification experiment, based on global_ocean.cs32x15, but with
1802       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1803       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1804       complete with example surface forcing files and matlab scripts to look
1805       at the output and compare it with that of global_ocean.cs32x15.)
1806    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1807       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1808       to conform to the common rule.
1809    o check-in the first version of the coupler + interfaces for multi-components
1810       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1811       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1812       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1813       - ocean and atmos. share the same horizontal grid (no interpolation).
1814       - exchanges between component and coupler is done in forward_step
1815    o new verification experiment, cpl_aim+ocn:
1816       coupled ocean - AIM atmosphere on cs32 grid.
1817    
1818    checkpoint52d_pre
1819    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1820    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1821    
1822    checkpoint52c_post
1823    o Fixing OPTIONS files for use of exf:
1824      - ALLOW_ECCO not needed
1825      - ECCO_CPPOPTIONS.h should not be included from
1826        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1827        as has been the case in the past
1828      - All cal/exf related options are currently set in
1829        single header file. Should remain so until we
1830        agree on a consistent new policy.
1831    o Removed all CPP options for cal package.
1832      cal has no more CPP options.
1833    o modified STOREs in GAD_ADVECTION
1834    o corrected key comp. for passkey
1835    
1836    checkpoint52b_post
1837    o new version: "thsice" of thermodynamic sea-ice pkg:
1838     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1839     - modify fluxes but do not change theta directly;
1840     - light cleaning of bulk_force pkg (still needed with thsice).
1841     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1842       + output_thsice.txt to test thsice & bulk_force pkgs.
1843    o put back grid & coriolis monitor output.
1844    checkpoint52b_pre
1845    
1846    o call "do_the_model_io" at the beginning (=> dump initial state)
1847    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1848    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1849      (need info on NUMBER_OF_PTRACERS)
1850    o missing PTRACERS headers in some routines
1851    o default tamc.h in pkg/autodiff supposed to crash
1852      to ensure proper customization
1853    
1854    checkpoint52a_post
1855    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1856      - moved surfaceTendencyTice from pkg/seaice to main code
1857      - subroutine FREEZE_SURFACE now limits only surface temperature
1858        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1859        => new output.txt for global_ocean.cs32x15 & global_with_exf
1860      - keep the old version of FREEZE for backward compatibility;
1861        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1862      - corresponding modifs for TAF directives
1863    o added surface flux output variables to TIMEAVE_STATVARS
1864    o time-averaged output for pkg/ptracers
1865    o fix problem with ECCO-related divided adjoint
1866      snapshot file was missing some ad-variables,
1867      but no warning issued by TAF
1868    
1869    checkpoint52a_pre
1870    o some bug fixes for #undef REAL4_IS_SLOW
1871    
1872    checkpoint52 = ecco_c52_e35
1873    o after testing adjoints of checkpoint51u_post
1874    
1875    checkpoint51u_post
1876    o this is the post-merge tag of the ecco-branch
1877      (needs another clean checkout and re-testing)
1878    o various natl_box_adjoint configs and results
1879      but no input fields
1880    o obcs adjoint not yet merged!
1881    o adding ECCO global 1x1 and 2x2 degree configs
1882    o updated/extended some store directives for seaice
1883    o pkg/ecco now containes ecco-specific part of cost function
1884    o top level routines the_main_loop, forward_step
1885      supersede those in model/src/
1886      previous input data.cost now in data.ecco
1887      (new namelist ecco_cost_nml)
1888    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1889    
1890    checkpoint51t_post
1891    o this is the pre-merge tag of the ecco-branch
1892    
1893    checkpoint51s_post
1894    o cleanup: removed various obsolete #define-s
1895    o pkg/grdchk
1896      - renamed 'ph-grd 3' to 'grad-res'
1897      - merged from ecco-branch
1898        (remaining bug fixes for obcs gradient checks)
1899      - additional high-precision output for testreport
1900        (grep for 'precision_grdchk_result')
1901    
1902    checkpoint51r_post
1903    o cleaned up or removed CPP_OPTIONS.h files
1904    o updated results for some of the tests to reflect the new
1905      optfiles (-ieee: -O0 instead of -O3)
1906    
1907    checkpoint51q_post
1908    o cd_code:
1909      - moved cd_scheme.F -> cd_code_scheme.F
1910      - separate read_checkpoint from cd_code_ini_vars.F
1911      - separated cd_code part from write_checkpoint
1912      - updated AD_SOURCE, generated .flow
1913      - added CD_CODE_VARS.h to the_main_loop
1914      - Moving cd_code specific store dir.s to pkg/cd_code
1915    o ctrl package totally restructured
1916      - pack/unpack now optional and decoupled from
1917        xx_/adxx_ I/O
1918      - ctrl_pack/unpack cleaned
1919        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1920      - confined inclusion of AD_CONFIG.h to where necessary.
1921    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1922    
1923    checkpoint51p_post
1924    o create initial cd_code package
1925      - WARNING: the initialization of fields within packages
1926        is broken because INI_FIELDS (where READ_CHECKPOINT is
1927        called) is called *before* PACKAGES_INIT_VARIABLES.
1928        This seems to be backwards since
1929        1) its important to initially zero the entire field including
1930           the "halo" region
1931        2) zeroing needs to be done *before* reading pickup info
1932           and the pickup call might or might not happen in any
1933           particular run
1934      - this needs an overhaul for R2
1935    o cleanup verification/*/code/GMREDI_OPTIONS.h
1936    o cleanup testreport
1937    
1938    checkpoint51o_post
1939    o bringing AD-related verif's up to date with genmake2
1940      - carbon/
1941      - global_ocean.90x40x15/
1942      - hs.94.1x64x5/
1943      - (front_relax/ )
1944    o (more) consistent directory structure for AD-related verif.'s
1945    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1946    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1947    o bug fix in find_alpha.F for MDJWF:
1948      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1949        change rho -> rho-rhoConst
1950      - replace call find_rho to find_rhonum
1951    o initialisation of rFlx extended to full array (required by TAF)
1952      and shifted to thermodynamics
1953    o removed PTRACERS.h in ptracers routine
1954    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1955    o Correcting initialisations for fVerU, fVerV.
1956    o helping TAF to recognize dependency on kUp for
1957      fVerU, fVerV
1958    o Replacing delZ by delR in pkg/ctrl/
1959    checkpoint51o_pre
1960    
1961    o undid all of cp51 pending some cleanups and discussion
1962    o added the [#include "AD_CONFIG.h"] statement to all files that need
1963       it for adjoint/tl #defines
1964     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1965     o removed tools/genmake since it no longer works
1966    
1967    checkpoint51n_post
1968    o modifications to make FREEZE flux visible to pkg/kpp
1969      - moved surfaceTendencyTice from pkg/seaice to main code
1970      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1971      - subroutine FREEZE now limits only surface temperature
1972        (this means new output.txt for global_ocean.90x40x15,
1973         global_ocean.cs32x15, and global_with_exf)
1974    o added surface flux output variables to TIMEAVE_STATVARS
1975    
1976    checkpoint51n_pre
1977    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1978    o added [#include "AD_CONFIG.h"] to all files that use the following
1979      defines:
1980      - ALLOW_ADJOINT_RUN
1981      - ALLOW_TANGENTLINEAR_RUN
1982      - ALLOW_ECCO_OPTIMIZATION
1983    
1984    checkpoint51m_post
1985    o incorporating changes to get TAMC/TAF working in genmake2
1986      - added new TAMC/TAF targets to the Makefile
1987      - various cleanups related to package handling
1988      - these changes should have no impact on the forward model
1989    
1990    checkpoint51l_post
1991    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1992     - faster algorithm for cal_addtime.F
1993     - higher precision arithmetic, where needed
1994     - pkg/exf *startdate variables changed from calendar date to
1995       model integration time
1996    
1997    checkpoint51l_pre
1998    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1999    o enable to apply restoring on S & T only in a latitude band.
2000    o update output (external_forcing_surf modif. change truncation errors)
2001       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2002    
2003    checkpoint51k_post
2004    o change default to: useNHMTerms=.FALSE.
2005     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2006       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2007     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2008        exp1, ideal_2D_oce
2009     - change data file of oceanic exp (leave the results unchanged for now)
2010       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2011    o set gravitySign automatically according to the vertical coordinate used
2012      (and change sign: back to "logical" value: +1 when R increases downward)
2013    o added an include barrier to the default CPP_OPTIONS.h and
2014      removed the #include "PACKAGES_CONFIG.h" from it
2015    o fix a bug in mom_fluxform (from chk51j_post)
2016    
2017    checkpoint51j_post
2018    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2019    o adjusted some flow directives (dynamics, thermodynamics)
2020    o added cubed-sphere case to test cost function
2021    o heckpoint_lev?_directives.h now include
2022      pkg-specific directives, whenever those are enabled.
2023    o Moving pkg-specific flow directives to corresponding pkg
2024      Moving pkg-specific differentiation list to corresponding pkg
2025      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2026      ---> conventions are
2027           - pkg_ad.flow
2028           - pkg_ad_diff.list
2029           - pkg_ad_check_lev?_dir.h
2030    
2031    checkpoint51i_post
2032    o merge of the branch-genmake2
2033      - knowingly breaks the older genmake
2034      - automatic generation of all ALLOW_${PKG_NAME} defines
2035      - new testreport supersedes older testscript
2036    o large number of package inclusion and header cleanups
2037    checkpoint51i_pre
2038    
2039    o new output for adjoin of global ocean vector invariant
2040    o fix for checkpoint of thermodynamic seaice and bulk_force
2041    o Steph gchem various cleanups
2042    
2043    checkpoint 51h_pre
2044    o fixed some single quotes
2045    o modify gchem pkg to be more versatile
2046    o modifications to clean up dic pkg
2047    o add pkg/cfc
2048    
2049    checkpoint51g_post
2050    o provide links for ARPACK and ADM*TLM
2051    o start removing verification/vero/
2052    o update AD-related stuff
2053      (in particular some IF-statements in model/src/ routines)
2054    o adding to verification/global_ocean.90x40x15/ adjoint of
2055      vector invariant setup
2056    
2057    checkpoint51f_post
2058    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2059    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2060      of tracer Green's fucntions for ocean inversion project.
2061    
2062    checkpoint51f_pre
2063    o Added on-the-fly spatial interpolation capability
2064        "USE_EXF_INTERPOLATION" to pkg/exf.
2065      - This is a temporary Cartesian-grid hack until
2066        the super-duper ESMF coupler becomes available.
2067      - See verification/global_with_exf/README for usage example.
2068      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2069        flags and modified pkg/seaice accordingly.
2070    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2071        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2072        non-local transport term.
2073    
2074    checkpoint51e_post
2075    o pkg/mom_vecinv:
2076      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2077      - add time-ave diagnostic of vorticity advection.
2078    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2079    o atmospheric geopotential: - include water vapor effect;
2080                                - use p^kappa in p* scaling.
2081    o land pkg: read initial state from files.
2082    o AIM : add stratospheric drag in the upper level
2083    
2084    checkpoint51d_post
2085    o change function ILNBLNK (=> last non-blank char.) to return zero
2086      (instead of the string length) when the string. char is empty
2087    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2088    o modif's to restore TAMC compatibility
2089      - avoid "_d" constructs in PARAMETER declarations
2090      - avoid interrupting lines by comment lines
2091    o Use cluster local disks for purely local I/O
2092      vs. globally visible disks needed for ctrl stuff
2093      (merged from ecco-branch)
2094      - new active_file_loc... and mdsio_..._loc routines
2095      - affected packages: autodiff, ctrl, grdchk, mdsio
2096    
2097    checkpoint51c_post
2098    o introducing integer flag debugLevel
2099      - debLevZero: suppress all output
2100      - debLevA: standard
2101      - debLevB: equivalent to current debugMode=.TRUE.
2102    o introducing pathname variable mdsioLocalDir for mdsio
2103      that can be specified at runtime
2104      (relevant for cluster I/O to local disk)
2105    `
2106    >>>checkpoint51b_post
2107    adjoint of ptracers
2108    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2109    o extended state in checkpoint_lev?, etc.
2110    o alternative ctrl/cost with tr1 or ptracer
2111    o new comlev1_bibj_ptracers
2112    o new ptracers.flow
2113    o made ptracers_forcing same as external_forcing_s
2114    o added verification for adjoint with ptracers
2115      - adm. grdchk fail so far
2116      - tlm. grdchk OK
2117      - checked tapelev/comlev recomputations: OK
2118    <<<checkpoint51b_pre
2119    
2120    checkpoint51a_post
2121    o added code for biogeochemistry package
2122      - new pkgs: dic, gchem
2123      - new subroutine in ptracers
2124    o modify code for biogeo packages
2125      - in model/src and pkg/ptracers
2126    
2127    checkpoint51
2128    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2129      - autodiff, ctrl, exf, grdchk, seaice
2130      kept separate packages
2131      - cost, ecco, obcs
2132    o updating verification/internal_wave, verification/lab_sea
2133      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2134    
2135    checkpoint50i_post
2136    o Preparing next differentiable checkpoint and sync
2137      of MAIN vs. ecco-branch
2138      - 1st step: this one is differentiable
2139      - 2nd step: next(! not this) checkpoint will have updated packages
2140                  from ecco-branch)
2141    
2142    checkpoint50h_post
2143    o new package "land": provide surface BC for AIM.
2144    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2145    o AIM: use true log-P extrapolation for near surface temp (= as in
2146        F.Molteni paper) ; update aim.5l_cs output.
2147    o New variable in PARM03 for more flexible pickups
2148    o somewhat cleaned package initialisation sequence for
2149      ctrl/ cost/ ecco/ in packages_... routines
2150    
2151    checkpoint50g_post
2152    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2153      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2154      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2155        made the default because of faster convergence than ADI
2156    
2157    checkpoint50f_post
2158    o exf totally restructured
2159      - replaced all exf_set_ routines by one generic exf_set_gen.F
2160        and made sure it's still differentiable
2161      - split exf_getffields.F into new exf_bulkformulae.F
2162      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2163      - updated adjoint/makefile and relevant verif. accordingly
2164    
2165    checkpoint50f_pre
2166     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2167          + change Evap over land. (update aim.5l_cs output)
2168     o added missing .cvsignores and made uniform across expts
2169     o changed configuration of tidal_basin_2d expt
2170     o added pkg/debug functions for tracing code in fatal crashes
2171     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2172     o new fn in pkg/monitor to stop model if solution grows too big
2173     o removed lots of single quotes from comments
2174    
2175    checkpoint50e_post
2176    o make KPP work with PTRACERS
2177     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2178       nearly a copy of kpp_transport_s
2179     - there is no analogue to SurfaceTendencyS, so I have to use
2180       gPtr(of the surface layer) instead
2181    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2182    checkpoint50e_pre
2183    
2184    checkpoint50d_post
2185    o change kpp output from multiple-record state files to single-record state
2186      files analogous to write_state.F
2187    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2188      analogous to the cg2d-related output.
2189    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2190      so that writing to internal file fn (with length 512) fails.
2191    checkpoint50d_pre
2192    
2193    checkpoint50c_post
2194    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2195    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2196    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2197    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2198    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2199    
2200    checkpoint50c_pre
2201    Merging from release1_p13:
2202    o bug fix for pkg/seaice dynamic solver
2203    o Added SEAICE_initialHEFF to pkg/seaice
2204    
2205    checkpoint50b_post
2206    o store u*,v* in gU,V instead of in guNm1,gvNm1
2207    o in order to put the momForcing out of the Adams-Bashforth:
2208      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2209      to timestep.F
2210    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2211    o re-generate output for highly sensitive test-exp:
2212       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2213    
2214    checkpoint50b_pre
2215    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2216    o corrected CPP option mismatch in exf_Bulk... functions for case
2217      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2218    
2219    checkpoint50a_post
2220    o Bug fix for merging between c50 and KPP.
2221      ikey was passed from thermodynamics to kpp_calc via
2222      common block rather than being recomputed in kpp_calc,
2223      in contradiction with new key itdkey.
2224      New key ikppkey created, and tamc.h headers updated.
2225    
2226    checkpoint50
2227    - 2nd step of merge with ecco-branch:
2228      merge changes in ecco-branch back into main trunk
2229    - bug fix in find_alpha
2230    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2231    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2232    - merged some sliced AD support routines
2233    
2234    checkpoint49
2235    merged from ecco-branch:
2236    o exf:
2237      - Enable initialisation of forcing fields to constant
2238        (runtime) values.
2239      - in exf_getffields.F
2240        Reduce i-/j-loop to interior domain, discarding overlaps.
2241        That also fixes wrong TAF-key computations for key_1, key_2
2242        with bulf formulae.
2243      - exf_init.F modify #ifdef for exf_init_evap
2244      - exf_getffieldrec.F, ctrl_getrec.F
2245        The following INT-usages are not safe:
2246          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2247          fldcount = int(fldsecs/fldperiod) + 1
2248        and were modified.
2249    o autodiff: checkpoint_lev...
2250      - updated storing for bulk formulae (some arrays were missing)
2251      - added state for seaice package
2252      - synchronized with main branch
2253    o DIVA:
2254      Modif.s in
2255      - the_main_loop.F
2256      - the_model_main.F
2257      and added cost_final_restore.F cost_final_store.F
2258      o With these changes, it is possible to fully separate
2259        the first forward run to compute the cost function (mdthe_main_loop)
2260        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2261        into separate model executions.
2262        This enables better tuning of DIVA to given queue sizes.
2263      o Loss of cost function value in consecutive DIVA runs is
2264        fixed by storing to 'costfinal' file.
2265      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2266        beginning/end of adjoint integration is accounted for.
2267      The current changes apply to TAF-1.4.26.
2268      TAF has one remaining bug, requiring one manual change
2269      (see MITgcm manual).
2270    o cal: synchronized between MAIN and ecco-branch
2271    
2272    checkpoint48i_post
2273    o Changes to restore differentiability of code w.r.t. previous tag
2274      (mostly adding new routines to make list and replacing
2275      pressure by totPhiHyd).
2276    o Updated and merged grdchk package
2277      - has both ADM and TLM checks
2278      - works for single- and multi-proc.
2279      - output cleaned
2280      - worked successfully for parallel DIVA
2281    o genmake:
2282      - Adding -platform=SP4
2283      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2284    o Modif. for DIVA:
2285      ctrl_unpack should not be called in intermediate DIVA interval.
2286      (similar thing would apply for active files such as
2287      tbar, sbar, psbar, which should not be reinitialised;
2288      only relevant for ecco-branch)
2289    
2290    checkpoint48h_post
2291    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2292    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2293    o Added SEAICE_initialHEFF to pkg/seaice
2294    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2295    
2296    checkpoint48g_post
2297    --- EOS:
2298    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2299      store total Potential in totPhyHyd for diagnostics & EOS.
2300    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2301    --- Pressure/geopotential gradient:
2302    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2303    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2304      ( changes results of global_ocean_pressure )
2305    o NLFS + z-coord.: add eta*Rho' contribution.
2306    o accurate phiHyd when using interface-W at the middle between 2 centers
2307     ( changes results of ideal_2D_oce )
2308    o includes r* 2nd term in potential gradient.
2309    
2310    checkpoint48f_post
2311    Merging from release1_p12:
2312    o Modifications for using pkg/exf with pkg/seaice
2313      - improved description of the various forcing configurations
2314      - added basic radiation bulk formulae to pkg/exf
2315      - units/sign fix for evap computation in exf_getffields.F
2316      - updated verification/global_with_exf/results/output.txt
2317    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2318      (SBO) core products, including oceanic mass, center-of-mass,
2319      angular, and bottom pressure (see pkg/sbo/README.sbo).
2320    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2321      to avoid negative values in shallow regions.
2322      - updated verification/natl_box/results/output.txt
2323      - updated verification/lab_sea/results/output.txt
2324    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2325    o Added useSingleCpuIO option (see PARAMS.h).
2326    o Updated useSingleCpuIO option in mdsio_writefield.F to
2327      work with multi-field files, e.g., for single-file pickup.
2328    o pkg/seaice:
2329      - bug fix in growth.F: QNET for no shortwave case
2330      - added HeffFile for specifying initial sea-ice thickness
2331      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2332    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2333      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2334    o pkg/seaice:
2335      - adjoint-friendly modifications
2336      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2337    
2338    checkpoint48e_post
2339    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2340    o dynamics: change definition of computational domain & adapt mom_fluxform
2341      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2342    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2343        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2344        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2345        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2346        inverted_barometer solid-body.cs-32x32x1
2347      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2348    
2349    checkpoint48d_post
2350    o in preparation for r*:
2351     a) use pre-computed gradient of hydrostatic potential:
2352        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2353     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2354        => affects results of glob_oce_pressure (different truncation error)  
2355      update output.txt of ideal_2D_oce & global_ocean_pressure
2356    
2357    checkpoint48d_pre
2358    o in preparation for r*:
2359      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2360      pass the 2 comp. of the grad. as arguments to momentum S/R.
2361      but for the moment, only used if it does not change the results.
2362    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2363    
2364    checkpoint48c_post
2365    Modifications in treatment of initial flux forcing controls
2366    to avoid extra storing of flux fields.
2367    
2368    checkpoint48c_pre
2369    o Added tidal_basin_2d experiment (currently 1D!)
2370    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2371    
2372    checkpoint48b_post
2373    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2374     (modification to pressure gradient not yet implemented)
2375    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2376      (for U & V) that are used for vertical advection of momentum.
2377    
2378    checkpoint48a_post
2379    o In preparation for r*, use temp. array to compute vertical transport
2380       in flux-form momentum pkg. => change results of few test-exp.
2381      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2382                        lab_sea, natl_box & plume_on_slope
2383    
2384    checkpoint48
2385    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2386    
2387    checkpoint47j_post
2388    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2389    o moved adexch from forward_step to addummy_in_stepping
2390    o added exch in ctrl_map_...
2391    o aveFreq.=0. at end of cost_final to avoid overwrite in
2392      reverse checkpointing loop
2393    o Yet more changes in gmredi:
2394      * adgmredi_calc_tensor
2395        avoiding all recomputation of gmredi_slope_limit
2396      * adgmredi_x/y/rtransport
2397        added flag for excessive storing to avoid recomp. of
2398        u/v/rtans, dTdx/y/z
2399        -> this is not really necessary and very memory-consuming
2400      * adgmredi_slope_psi:
2401        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2402      * gmredi_slope_limit
2403        re-activated full calculation of taperfct for case 'ac02'
2404    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2405    
2406    checkpoint47i_post
2407    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2408    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2409      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2410    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2411    o gmredi: fix few bugs.
2412    
2413    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2414    This will be a good checkpoint to plug into the ecco-branch.
2415    o few modif.'s to get latest version adjointed
2416      (mainly kick out code in ini_linear_phisurf)
2417    o modif's to run adjoint with exactConserv
2418    o case GM_BOLUS_ADVEC should be cleaned
2419      S/R gmredi_slope_psi should be cleaned
2420    o verification/carbon now has exactConserv=.TRUE.
2421    
2422    checkpoint47g_post
2423    o time-average AIM output: becomes independent from statvars time-average
2424      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2425    o After TAF bug fix:
2426      Tested adjoint of gmredi package.
2427      Tests were done with checkpoint47 rather than with latest
2428      checkpoint47f_post since the latter is broken for the adjoint
2429      verification/carbon/ contains both ADM and TLM gradient checks.
2430    Here they are, before they get changed/lost/stolen.
2431    Mostly modif.'s to fix numerical sensitivities.
2432    Gradient checks OK for
2433    - GM_taper_scheme:
2434      * clipping
2435      * ac02
2436      * linear
2437      * glw91
2438      * dm95
2439      * ldd97
2440    - GMREDI_OPTIONS:
2441      * GM_VISBECK_VARIABLE_K
2442      * GM_NON_UNITY_DIAGONAL
2443      * GM_EXTRA_DIAGONAL
2444      * GM_BOLUS_ADVEC
2445    in conjunction with data.gmredi parameters to be checked in
2446    in a few minutes under verification/carbon/code/
2447    
2448    checkpoint47f_post
2449    Merging from release1_p10:
2450    o modifications for using pkg/exf with pkg/seaice
2451      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2452        and SEAICE_EXTERNAL_FLUXES
2453      - pkg/exf CPP options EXF_READ_EVAP and
2454        EXF_NO_BULK_COMPUTATIONS
2455      - usage examples are Experiments 8 and 9 in
2456        verification/lab_sea/README
2457      - verification/lab_sea default experiment now uses
2458        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2459    
2460    checkpoint47e_post
2461    o created a tag prior to creating a branch
2462    
2463    checkpoint47d_post
2464    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2465      at the bottom boundary had an erroneous half slip boundary condition
2466    o added bottom drag and no slip boundary condition capabilities to
2467      oceanic pressure coordinates code
2468    o added new verification experiment global_ocean_pressure, this experiment is
2469      also described in the tutorial section of the manual
2470    checkpoint47d_pre
2471    
2472    checkpoint47c_post
2473    o Added a verification experiment for a global cubed-sphere ocean run
2474      -  verification/global_ocean.cubed32x32x30
2475      -  uses pkg/therm_seaice and pkg/bulk_forcing
2476    
2477    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2478    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2479      when using P-coordinate; only implemented for atmospheric config.
2480    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2481      NOTES: requires option NONLIN_FRSURF to be "#define".
2482    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2483    
2484    checkpoint47b_post
2485    Merging from release1_p9:
2486    o pkg/seaice
2487      - removed GOTO's and added taf directives
2488      - double precision constants to reduce the g77 (Linux)
2489        to F77 (SGI) differences reported in release1_p8
2490    o tools/genmake
2491      - added SGI options
2492    o verification/testscript
2493      - updated to that of checkpoint47a_post
2494    o verification/global_ocean.90x40x15/input/eedata
2495      - modified for SGI f77 compatibility
2496    o verification/lab_sea
2497      - added description of sea-ice model
2498      - added missing matlab routines
2499      - added test of thermodynamics parallelization
2500    
2501    checkpoint47a_post
2502    o new pkg: aim_v23
2503     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2504       for now, keep the same surface forcing as before.
2505     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2506     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2507     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2508    o add diagnostic of surface correction term in monitor output
2509    
2510    o bulk_force and therm_seaice
2511    - Two packages:  bulk_force (Bulk forcing)
2512      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2513    - Earlier integration from Stephaine Dutkiewicz
2514      and Patrick Heimbach.
2515    - Two ifdef statements for compile time,
2516       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2517    
2518    checkpoint47
2519    differentiable version of checkpoint46n_post
2520    o bug fix in quasihydrostaticterms
2521    o * "clean" adjoint code (in terms of extensive recomputations)
2522        can now be obtained for all GMREDI options (i.e. for
2523        - GM_VISBECK_VARIABLE_K
2524        - GM_NON_UNITY_DIAGONAL
2525        - GM_EXTRA_DIAGONAL
2526        - GM_BOLUS_ADVEC )
2527      * However, wrong gradient check problem remains unsolved.
2528      * New CPP options have been introduced for different
2529        tapering schemes
2530    o external_fields_load now part of differentiation list
2531    o pressure needs multiple storing;
2532      would be nice to have store_pressure at beginning or
2533      end of forward_step, e.g. by having phiHyd global (5-dim.)
2534      (NB: pressure is needed for certain cases in find_rho,
2535      which is also invoked through convective_adjustment).
2536    o recomputations in find_rho for cases
2537     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2538    o #define ATMOSPHERIC_LOADING should be differentiable
2539    o ini_forcing shifted to begining of initialise_varia
2540    o Incorporating QNVS line search routines into MITgcm
2541      (this is separate code, and therefore not under pkg)
2542      lsopt/, optim/
2543    o Updated verification/carbon/
2544      - #define GM_VISBECK_VARIABLE_K
2545      - GM_taper_scheme    = 'ldd97'    
2546    
2547    checkpoint46n_post
2548    Merging from release1_p8:
2549    o verification/natl_box:
2550      updating new external_fields_load routine
2551    o New package: pkg/seaice
2552      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2553      The sea-ice code is based on Hibler (1979-1980).
2554      Two sea-ice dynamic solvers, ADI and LSR, are included.
2555      In addition to computing prognostic sea-ice variables and diagnosing
2556      the forcing/external data fields that drive the ocean model,
2557      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2558      The implied surface heat flux is then stored in variable
2559      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2560      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2561      non-local transport term.  Because this call precedes model
2562      thermodynamics, temperature under sea-ice may not be "exactly" at
2563      the freezing point by the time theta is dumped or time-averaged.
2564      N.B.: fairly large differences in accuracy occur across
2565            different platforms/compilers; comparison between
2566            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2567            generated output gives:
2568       T           S           U           V
2569      C D M    c        m  s        m  s        m  s        m  s
2570      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2571      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2572      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2573    
2574      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2575    o GAD:
2576      - generated new common blocks to account for call of
2577        same gad routines with differing traceridentities
2578        (needed to modify tracerIdentity indices in GAD.h)
2579      - generated separate common blocks for case useCubedSphereExchange
2580        (Department of Futurology)
2581      - parameter lists to gmredi_?transport: added tracerIdentity
2582      - added new key indices to tamc.h
2583    o external_fields_load:
2584      - added this routine to TAF list
2585      - needed to make some common blocks global and additional storing
2586        along the same lines as exf package (checkpoint_lev?_directives.h)
2587    o exf:
2588      updated external forcing package
2589      - bug fixes carried over from ecco-branch
2590        (missing OBCS_OPTIONS.h in two routines)
2591      - enable easy to use "no forcing".
2592      - added exf I/O for atmospheric loading
2593      - added exf I/O for runoff data
2594      - transfered scaling between exf <-> MITgcm to exf namelist
2595    o Adding new verification experiment global_with_exf.
2596      This verification experiment is almost identical to the
2597      global_ocean.90x40x15 experiment, except that it uses
2598      the exf (and cal) package instead of the
2599      external_fields_load routine (cf README file).
2600    
2601    checkpoint46m_post
2602    o modified testscript to return -- when there are no lines of "%MON" output
2603    o added new flag "quasiHydrostatic" for QH mode
2604      and new routine quasihydrostaticterms()
2605    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2606      New routine: mom_u_coriolis_nh()
2607    o fixed sign of non-hydrostatic metric terms in u and v equations.
2608      Depend on correct sign of gravitySign.
2609    o added work.pc* to .cvsignore in aim directories using ifc
2610    o introduced flag for controllin non-hydrostatic metric terms
2611    o removed gravitySign from PARM04
2612    o switched to g77/ifc from pgf77 in aim experiments
2613    
2614    checkpoint46l_post
2615    o made convective adjustment work with pressure coordinates:
2616     - changed the direction of k-loop in convective_adjustment.F for the
2617       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2618     - adjusted the reference pressure k-index in convective_adjustment.F
2619     - adjusted the convection condition in convect.F (in analogy to
2620       calc_ivdc.F)
2621     - convective_adjustment no longer computes anything on the halos
2622     - removed the warnings about negative salinity from find_rho.F and
2623       find_alpha.F; instead the new routine look_for_neg_salinity, called
2624       at the beginning of find_rho, find_alpha, and find_beta, does a
2625       check of the entire slice, if CPP-option
2626       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2627    checkpoint46l_pre
2628    
2629    checkpoint46k_post
2630    o fixed the verification/global_ocean.90x40x15 experiment:
2631     - new bathymetry (the world according to A., JMC, and M.)
2632     - new initial fields and forcing fields (*.bin files)
2633     - new POLY3.COEFFS (for the next release one should switch to a full
2634       equation of state: JMD95P or MDJWF)
2635     - fixed several errors and redundancies in the data file
2636     - experiment uses looped cells
2637     - added matlab directory with diagnostic scripts for plotting of output
2638    
2639    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2640     - read AIM physics parameters from a file (data.aimphys)
2641     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2642    
2643    checkpoint46j_post
2644    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2645    o move wVel computation at the end of the time step, in S/R integr_continuity
2646    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2647    o update timeave pkg for wVel diagnostic.
2648    checkpoint46j_pre
2649    
2650    checkpoint46i_post
2651    o Clean up AIM package (and keep the results unchanged):
2652      include CPP_OPTION and use IMPLICT NONE in all routines ;
2653      declare all the variables _RL ; use _d 0 for all numerical constants.
2654      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2655    
2656    checkpoint46h_post
2657    o cleaned up the use of rhoNil and rhoConst.
2658      - rhoNil should only appear in the LINEAR equation of state, everywhere
2659        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2660        and the dynamical equations are all divided by rhoConst
2661    o introduced new parameter rhoConstFresh, a reference density of fresh
2662      water, to remove the fresh water flux's dependence on rhoNil. The default
2663      value is 999.8 kg/m^3
2664    o cleanup up external_forcing.F and external_forcing_surf.F
2665      - can now be used by both OCEANIC and OCEANICP
2666    checkpoint46h_pre
2667    
2668     Added code to convert surface volume flux (fresh water) into
2669     a mass flux when using P coordinates in the ocean (OCEANICP).
2670     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2671    
2672    checkpoint46g_post
2673    o Include a new diagnostic variable phiHydLow for the ocean model
2674      - in z-coordinates, it is the bottom pressure anomaly
2675      - in p-coordinates, it is the sea surface elevation
2676      - in both cases, these variable have global drift, reflecting the mass
2677        drift in z-coordinates and the volume drift in p-coordinates
2678      - included time averaging for phiHydLow, be aware of the drift!
2679    o depth-dependent computation of Bo_surf for pressure coordinates
2680      in the ocean (buoyancyRelation='OCEANICP')
2681      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2682        Theta, Salinity, and Pressure in the parameter list. This routine is
2683        presently contained in find_rho.F. This routine does not give the
2684        correct density for 'POLY3', which would be a z-dependent reference
2685        density.
2686    o cleaned up find_rho
2687      - removed obsolete 'eqn' from the parameter list.
2688    o added two new verification experiments: gop and goz
2689      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2690    checkpoint46g_pre
2691    
2692    checkpoint46f_post
2693    o Enable tangent linear (forward mode) gradient checks:
2694      - extended active file handling to g_... files
2695      - added TANGENT_SIMULATION to theSimulationMode
2696      - extended grdchk package accordingly
2697    o added tangent linear setup in verification/carbon/code_ftl
2698    o added adjoint setup in verification/front_relax/code_ad
2699    
2700    checkpoint46e_post
2701    o Added new equation of state -> MDJWF
2702      - EOS of McDougall et al., 2002, JAOT, submitted
2703      - caveat: the equation of state is only valid for a smaller (more
2704        realistic?) range of values than JMD95P/Z and UNESCO
2705      - added masks to the calculation of pressure in store_pressure
2706      - added more check values for density in check_eos (ini_eos.F), some of
2707        the old check values are out of the range of the MDJWF-eos, so don't
2708        expect perfect matches for those
2709    checkpoint46e_pre
2710    
2711    checkpoint46d_post
2712    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2713      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2714      case of pressure coordinates. eosType='JMD95Z' in
2715      combination with buoyancyRelation='OCEANICP' now causes an error.
2716    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2717      in find_alpha/beta.
2718    checkpoint46d_pre
2719    
2720    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2721      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2722    
2723    checkpoint46c_post
2724    o Changes necessary for ocean in p-coordinates
2725     -  Added new buoyancy relation = 'OCEANICP'
2726     -  Added new parameters = gravitySign (this used to be contained inside
2727        the factor dRdZ which I added when we first switched to R coordinates).
2728     X GM/Redi is not compatible (yet)
2729     X bottom drag and no-slip need to be debugged.
2730    checkpoint46c_pre
2731    
2732    checkpoint46b_post
2733    o Added new equation of state -> JMD95Z and JMD95P
2734      - EOS of Jackett and McDougall, 1995, JAOT
2735      - moved all EOS parameters into EOS.h
2736      - new routines ini_eos.F, store_pressure.F
2737    o Added UNESCO EOS, but not recommended because it requires
2738      in-situ temperature (see JMD95)
2739    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2740      unesco.f to be used with POLY3
2741    checkpoint46b_pre
2742    
2743    checkpoint46a_post
2744    o Added (atmospheric) pressure loading
2745      - new field in FFIELDS.h, etc...
2746      - new cpp flag ATMOSPHERIC_LOADING
2747    o Changed hFacC to _hFacC in calc_phi_hyd.F
2748    o Added SHORTWAVE_HEATING to some files for consistency
2749    checkpoint46a_pre
2750    
2751    checkpoint46
2752    further merges from release1_p5
2753    o new ctrl package
2754      - adopted from ECCO environment to enable optimization
2755      - added Eliassen Palm fluxes to controls
2756    o added Eliassen Palm flux controls to gradient check package
2757    o cost package
2758      - Compatible with new ctrl package
2759      - added Eliassen Palm cost hooks
2760      - modif's of existing cost functions
2761    o Adjoint-related bug fixes in kpp:
2762      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2763      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2764    o autodiff package
2765      - flow directives:
2766        + new for S/R do_the_model_io
2767        + enhanced for S/R checkpoint
2768        + new gmredi.flow
2769      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2770        disable adcommon.h/g_common.h by default.
2771      - fixed problem for adjoint of global_max
2772    o modified verification/carbon/
2773    o New setup for adjoint of global_ocean
2774    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2775    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2776    o incorporated hooks for sponge layer code (external_forcing.F)
2777    
2778    checkpoint45d_post
2779    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2780    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2781      (affects plume_on_slope "cg2d" output)
2782    o add new parameter deltaTfreesurf for free-surface time stepping
2783    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2784    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2785    o change phiMin in exp1 (to agree with documentation)
2786    o add new flags:
2787     - T,S forcing inside/outside Adams-Bashforth
2788     - turn off temp,salt advection and/or forcing
2789     - for each tracer, define internal flag for multiDimAdvection & A-B
2790    o monitor: change definition of KE to check conservation of Energy
2791    
2792    checkpoint45c_post
2793    o Removed f90 comments ("!")
2794    o Modified initialisations to enable exf package for MITgcm
2795      (without invoking ECCO_PACKAGE).
2796    o modifications to gradient check package (Martin Losch)
2797      - enable centered differences
2798      - modified format of standard output
2799    
2800    checkpoint45b_post
2801    o cleaned exchange calls in cg2d
2802    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2803    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2804      to configure barotropic setup (Martin Losch)
2805    o moved some initialisations within bi,bj loop in dynamics
2806      (TAF flow dependency)
2807    o in initialise_varia, moved call packages_init_variables
2808      before convective_adjustment_init
2809      (corresponding adjustment of TAF tape initialisation).
2810    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2811    
2812    checkpoint45a_post
2813    o compute Rho over the whole domain (extend iMin,jMin indices)
2814    o specific exchange for X-slice domain (case Ny=1)
2815    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2816    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2817    
2818    checkpoint44h_post = checkpoint45
2819    o Fix to restore differentiability:
2820      place at which packages_init_variables is called in
2821      initialise_varia is crucial for reverse control flow.
2822    o modifications in GMRedi to enable stable adjoint
2823      (corresponding modif's in thermodynamics, dynamics)
2824    o added missing hook for sponge layer code in external_forcing
2825    o modified test cost functions
2826    o storing in gad_advection (plus removal of write(0,*)!
2827    o missing headers TR1.h added in convective_adjustment routines
2828    o errorMessageUnit set non-equal zero in eeboot
2829      (conflict on some platforms, e.g. IBM SP3)
2830    o modified carbon verif.
2831    
2832    checkpoint44h_pre
2833    o vertical grid option: allow to put the Interface at the middle between
2834      2 cell-centers ; replace delZ in pkg/kpp by drF.
2835    o GM Advective form: Tracers are advected using the residual transport (=
2836      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2837    
2838    checkpoint44g_post
2839    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2840      results) ; ifdef missing in thermodynamics.F
2841    
2842    checkpoint44f_pre,checkpoint44f_post
2843    o added PTRACERS package
2844      This allows an arbitrary number of passive tracers to be integrated
2845      forward simultaneously with the dynamicaly model.
2846      + Implemented so far:
2847        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2848        - I/O and checkpointing
2849        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2850      + Not implemented so far:
2851        - KPP
2852        - OBCS
2853      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2854        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2855        line in data.pkg.
2856      + This package is disabled by default since it increases storage.
2857    
2858    
2859    o testscript: added -cleanup option
2860    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2861                 b) enable to filter 2D fields.
2862    
2863    checkpoint44e_pre,post
2864    o re-wrote convective adjustment to use pre-calculated weights
2865      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2866      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2867      Original calls to convect() still in place.
2868    
2869    chkpt44d_pre,post
2870    o added missing EXCLUDE_MONITOR flags
2871    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2872      (incompatible typ in MIN/MAX expressions caused problems
2873      on IBM SP3)
2874    o in genmake added variable MAKEDEPEND
2875      plus resetting for case SunOS
2876    o added timer_stats.c routine for IBM SP3
2877    o removed variables in dynamics
2878    !!! I forgot to create tag chkpt44d_pre !!!
2879    !!! But chkpt44d_pre = chkpt44c_post    !!!
2880    
2881    o real fresh water flux implemented with non-linear free-surface.
2882    
2883    chkpt44c_pre,post
2884    o few fix (mask in shap_s2, EmPmR in external_field_load,
2885      USE_NATURAL_BCS in solve_for_P);
2886    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2887    
2888    checkpoint44b_pre/_post
2889    o merge of relevant stuff from the ecco-branch:
2890      - genmake: removed $S64 overwrite for case SunOS
2891      - pkg/exf: update and corrections for field swapping and obcs
2892      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2893                  harmonized between ECCO and MITgcm
2894      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2895                      updated checkpointing_lev... lists for obcs
2896      - model/src: minor changes in forward_step, plot_field
2897                   added directive for divided adjoint in the_main_loop
2898      - pkg/mdsio: added mdsio_gl_slice
2899    
2900    o check parameters & config (chkpt44a_pre,post)
2901    o OBC and NonLin_FrSurf.
2902    
2903    checkpoint44
2904    o fix bug in mom_vi_del2uv
2905    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2906    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2907    o update AIM experiments (NCEP input files)
2908    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2909    o added some stuff for AD
2910    
2911    checkpoint43
2912    o added two new advection tests
2913    o added global 4x4 degree ocean test
2914    o added test of H&S94 with free surface on cube
2915    o some final mods for gradient check, adjoint,...
2916    
2917    checkpoint42
2918      Fixed AD-related problems:
2919    o Store directives up-to-date with re-arranged Adams-Bashforth
2920      (mainly thermodynamics.F)
2921    o New store directives for multi-dim. advection schemes
2922      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2923      * new common block and key passkey
2924      (mainly gad_advection.F)
2925    o Modified store directives for split of dynamics/thermodynamics
2926      for the case ALLOW_KPP
2927    o Cleaned argument list for timestep_tracer.F
2928    
2929    checkpoint41
2930    o re-formatted/added comments in prologues of key subroutines
2931      to work with protex
2932    
2933    checkpoint40
2934    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2935    o added FLT (floats) package from Arne along with demo. experiment
2936    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2937      implementation of forward-in-time forcing terms
2938    o more mods for non-linear free-surface including new variable
2939    o modified multi-dim method to work on cube
2940    o bug fix in KPP (from DM)
2941    
2942    checkpoint40pre9
2943    o added DST advection schemes
2944    o fix MPI bug on SGI's
2945    o modifications for non-linear free-surface
2946    o fixed conditionals for fixed flow/passive tracer only mode
2947    o added tension/strain form of stress tensor
2948    o changes to commenting of arguments for TAF/TAMC
2949    o added/updated many matlab scripts
2950    o added multi-dimensional advection method for tracers
2951      
2952    checkpoint40pre8
2953    o new package rw/
2954      Added method for dumping intermediate local arrays:
2955      mdsio_writetile - same as mdsio_writefield except works from inside
2956                        bi,bj loop
2957      mdsio_writelocal - same as mdsio_writetile except works for local
2958                         arrays
2959      write_local_r? - higher-level wrapper for mdsio_writelocal
2960      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2961      Example given at end of mom_vecinv.F that dumps some local arrays.
2962    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2963      control flux-form versus vector invariant code.
2964      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2965      or genmake -DISABLE ...
2966    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2967      (additional storing is now needed for case vecinv;
2968      currently nothing implemented to switch this storing off
2969      in case fluxform is used since no CPP flag available).
2970    
2971    checkpoint40pre7
2972    o bug fix in dynamics.F
2973      calc_viscosity called before k=1,Nr loop.
2974    o added some #ifdef's ALLOW_PASSIVE_TRACER
2975    o cleaned initialisations in ctrl_map_ini
2976      related to TAF
2977    
2978    checkpoint40pre6
2979    o split dynamics into thermodynamics & dynamics
2980    o corresponding split of calc_diffusivity into
2981      calc_diffusivity, calc_viscosity
2982      (kpp_calc_diff, kpp_calc_visc).
2983    o Added diffkr, kapgm to control variables
2984    o bug fix in gmredi_slope_limit for ldd97
2985    
2986    checkpoint40pre5
2987    o proper initialization of Adams-Bashforth time stepping
2988      + uses forward step for very first step of model (iter=0)
2989    o re-generated *all* output since almost all output is modified by this
2990      change (sorry but we've been putting this one off for about 2 years)
2991      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2992        *not* regenerated since they are already out of date and I don't
2993        want to create the impression that they are suddenly working.
2994    o removed KAP stuff for DEC's
2995    o modified/added many .cvsignore files in */code and */input
2996    o added new expt "solid-body.cs-32x32x1"
2997      + this uses an alternative form of ini_curvilinear_grid.F which
2998        is not necessarily any better than the current one...
2999    
3000    checkpoint40pre4
3001    o added re-initialisations of utrans,vtrans,rtrans in
3002      calc_common_factors which are crucial for TAF.
3003    o extended iMin,jMin range for calc_common_factors,
3004      calc_diffusivity
3005    o added option ALLOW_PASSIVE_TRACER
3006    o a few minor updates and fixes
3007    
3008    checkpoint40pre3
3009    o created calc_gtr1.F for gad package
3010    o split the_main_loop and re-introduced forward_step
3011    o some recomputations of nIter0 for TAMC
3012    
3013    checkpoint40pre2
3014    o Updated to latest branch of AJA, JMC
3015    o Added gradient check package
3016    o Added routines for passive tracer handling
3017    o Added carbon sequestration sensitivity experiment
3018    
3019    checkpoint39
3020     o Modifications and fixes to support TAMC
3021       (mainly missing or wrong directives)
3022     o Corrected common blocks when fooling TAMC to produce adjoint I/O
3023       in addummy_in_stepping
3024     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
3025     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
3026     o Included following packages:
3027       cal: calendar
3028       exf: external forcing
3029       ecco: essential routines to control use of cal, exf
3030             (NB: this is not the full ECCO environment)
3031     o disabled some packages by default in genmake
3032    
3033    checkpoint38
3034     o see notes_c37_adj.txt
3035     o corrected wrong layer index in external_forcing_t
3036     o replaced the_main_loop/forward_step by the_main_loop
3037     o removed forceoutput from write_state
3038       (replaced criteria for initial/final state)
3039     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
3040    
3041    checkpoint37
3042     o mdsio.F routine split and packaged in pkg/mdsio
3043       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
3044        used unless genmake -disable=mdsio)
3045     o allow a more precise surface-geopotential gradient for the atmosphere
3046       taking into account the change in space of Alpha (=1/rho) at the surface.
3047     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
3048       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
3049     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
3050       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
3051       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
3052     o Time-Average diagnostics defined as a pseudo package "timeave".
3053     o pickup files : old pickup (before c35) did not work with new code (c35
3054       and after) unless activating 2 commented lines in initialise-varia.
3055     o Non-Hydrostatic pickup file Pb fixed.
3056     o bug with Rigid-lid version (since c35) fixed.  
3057    
3058    checkpoint36
3059     o implement Crank-Nickelson barotropic time-stepping
3060     o recover Time-Average diagnostics
3061     o fix Pb in checkpoint (PR#19)
3062     o AIM become a standard package ; clean unused CPP_kees
3063    
3064    checkpoint35
3065     o subtantial rewrite of dynamics.f
3066     o allows staggered time-stepping
3067     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
3068     o added bottom drag (linear + quadratic)
3069    
3070    checkpoint34
3071     o Modified exchange routines for correct reverse simulation.
3072     o Added verification output to comply with bug fix in impldiff.F
3073       as of c33 (exp2, natl_box).
3074     o Corrected store directives in dynamics.F
3075     o Corrected array boundaries in impldiff.F
3076     o Corrected array dimensions in gmredi.
3077       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
3078     o Added routine GLOBAL_SUM_INT to global_sum.F
3079     o Added mdsio_gl.F for ECCO purposes.
3080    
3081    checkpoint33
3082     o Fixed bug in lower BC in impldiff.F
3083     o Fixed confusion about units of forcing arrays in FFIELDS.h
3084       namely Fu,Fv,Qnet,Qsw,EmPmR:
3085       - Removed verification/natl_box/code/external_fields_scale.F
3086         (did not differ from that in model/src)
3087       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
3088         (see FFIELDS.h for description)
3089       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
3090         kpp_calc.F and kpp_transport_t.F
3091       - Removed model/src/external_fields_scale.F and calls to it
3092       - verification/natl_box uses flux data with "atmospheric" sign so
3093         a special version of external_fields_load.F is used to
3094         change the data as it's read in. This way, the arrays
3095         have the right units and signs at all times tha a user could
3096         possibly use them.
3097     o Corrected genmake to delete a temporary file during configuration
3098    
3099    checkpoint32
3100     o Scaling of forcing fields moved from external_forcing.F to
3101       external_fields_scale.F, called directly after loading fields.
3102     o Surface relaxation terms added to surface tendency fields in
3103       extra subroutine.
3104     o impldiff.F changed to avoid storing by TAMC of huge intermediate
3105       fields.
3106     o Changes in GMRedi to comply with packaging structure.
3107     o Modifications and bug fixes in KPP package.
3108     o Verification experiment for KPP added (verification/nat_box/)
3109    
3110    checkpoint31
3111     o Packages interface brought in line with defined standard
3112       -> new routines packages_...F
3113       -> changes in initialise_fixed.F, initialise_varia.F
3114       -> enables initialisation interface for ECCO package
3115     o Rescaling of external forcing fields immediately after read
3116       (removed from external_forcing.F)
3117       -> new: surface_fields_scale.F
3118       -> affects ini_foorcing.F, external_fields_load.F
3119     o Computation of surface tendencies before tendency updates.
3120       -> new: external_forcing_surf.F
3121     o Change of variable names useGMRedi, useKPP, useECCO
3122     o Further changes in dynamics.F, impldiff.F for TAMC
3123     o Tested for experiments 0, 2, 4.
3124       - not yet tested for GMRedi.
3125       - not yet tested for KPP.
3126    
3127    checkpoint30
3128     o Updates for OBCs
3129     o New experiment for test OBCs (internal_wave)
3130     o New output.txt in verification/exp4/results/
3131     o Updates for KPP: calculation of viscosity corrected, new variables
3132       kpp_dumpFreq and kpp_taveFreq
3133     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
3134       and entry for T90 in genmake
3135    
3136    checkpoint29
3137     o packaged KPP and GM/Redi
3138    
3139    checkpoint28
3140     o Corrected initialization of hFacMin for difference vertical coordinates
3141     o Modified calculation of partial cell thickness to more robust algorithm
3142     o config_summary.F: replaced write_1D_... by write_0D_...
3143       read_write.F: added subroutines write_0D_...
3144     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
3145       included some initialisations required for TAMC.
3146     o routine calc_isoslopes: modified sqrt computation to make it
3147       differentiable for zero argument.
3148     o routines dynamics, impldiff:
3149       included store directives and tape key computations required for TAMC.
3150     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
3151    
3152    checkpoint27
3153     o fixed calc_isoslopes() to so that cancellation of terms in tensor
3154       formulation works properly with variable resolution.
3155     o restructured the calling tree between the_model_main() and dynamics()
3156     o split initialise() into initialise_fixed() and initialise_varia()
3157     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
3158       in new routine ini_psurf()
3159    
3160    checkpoint26
3161     o moved some #ifdef in optional routines to encompass everything
3162       except the argument declarations. This was using up some memory.
3163     o fixed macros like _ADT to work with both versions of Linux cpp
3164     o cleaned up some unused and uninitialized variables
3165       (helps when debugging with strict compile options)
3166     o split up CPP_EEOPTIONS.h into options and macros
3167       (macros are now in eesupp/inc/CPP_EEMACROS.h)
3168     o patch for 2 processor JAM mode
3169    
3170    checkpoint25
3171     o updates for OBCs and NH
3172     o dramatically reduced memory usage
3173     o added "JAM" routines for use on Artic network
3174     o parameterization of convection by implicit vertical diffusion
3175     o added a diagnostic of convective index
3176     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
3177       (this is was partly for OBCs and NH but also in anticipation of
3178        an explicit free-surface option)
3179     o initial state input files for U and V
3180    
3181    checkpoint24
3182     o Removed some spurious "REAL"s
3183     o Updated KPP to latest version from JPL
3184     o Added a COS(latitude) in horizontal viscosity
3185    
3186    checkpoint23
3187     o Added del^4 diffusion for salt and temperature
3188     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
3189    
3190    checkpoint22
3191     o Made many small changes: implicit none, format(i5), etc...
3192     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
3193    
3194    checkpoint21
3195     o Introduced new I/O package that supports direct-access records (mdsio.F)
3196     o Split-up mid-level I/O routines
3197     o Updated input data for experiments 0,1,2,4 and 5
3198     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
3199    
3200    checkpoint20
3201     o Tidied up open-boundaries some more
3202     o Added non-hydrostatic code
3203     o Fixed some input data
3204     o Modified MPI start-up to work in "coupled" context.
3205    
3206    checkpoint19
3207     o Tidied up directory structure for verification experiments.
3208     o Added new code for open boundaries.
3209     o Corrected advective terms near boundaries.
3210     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
3211     o Implemented free-slip/no-slip BCs and del^4 dissipation.
3212     o Split default parameters out of ini_parms.F into set_defaults.F.
3213    
3214    checkpoint18
3215     o Further changes for optional code generation with
3216       CPP - ugh!
3217    
3218  checkpoint17  checkpoint17
3219   o Beginning to incorporating modularity   o Beginning to incorporating modularity
3220     for supporting atmos. and ocean configs.     for supporting atmos. and ocean configs.

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