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revision 1.66 by jmc, Tue Mar 5 15:36:06 2002 UTC revision 1.787 by jmc, Sun Apr 15 22:04:51 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    checkpoint58y_post
8    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
9      vertical diffusivity, similar to that in MOM4; turned on using
10      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
11      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
12    o Added capability for 3D specification of background vertical diffusion
13      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
14      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
15      "data" file that contains the 3D vertical diffusivity coefficients.
16    o ice dynamics (pkg/seaice) with thsice thermodynamics:
17      - add code within pkg thsice to advect & diffuse sea-ice fields
18      similar to (and will replace) what has been added in  seaice_advdiff.F,
19      but: - conserving Mass, Heat & Salt.
20           - better when using non-linear advection scheme (not yet fully tested)
21           - can also be used in atmospheric set-up (for now, only the diffusion).
22    
23    checkpoint58x_post
24    o IO option for global-file compact format:
25      - add options when generating topology (utils/exch2/matlab-topology-generator)
26      - add I/O capability (pkg/mdsio).
27      - adapt utils/matlab/rdmds.m to read this format.
28      for now long-line format not yet supported by pkg/mdsio (& exch2).
29    o shelfice: add a few diagnostics
30    
31    checkpoint58w_post
32    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
33      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
34      (and replace horiVertRatio in NH code).
35      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
36                         and tutorial_plume_on_slope (sensitive to truncation)
37    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
38      directly to drive seaice model (C-grid only)
39    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
40     - reintroduce computation of wind from stress,
41     - compute tau (in exf_bulkformulae.F) from windstress averaged to
42       mass points to avoid tau = 0
43     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
44    o rdmnc.m: make it work with "global" files created with gluemnc
45    o rdmnc.m : some improvements in dealing with singleton dimension
46      (tested on all testreport mnc output files).
47    o genmake2: disable pkg/profiles if netcdf test fails.
48    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
49    o move call to cal_readparms up to make calendar parameters/variable available
50      to all packages
51    
52    checkpoint58v_post
53    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
54      useDynP_inEos_Zc tested.
55    o pkg/exf: changes to properly interpolate/mask/scale initial fields
56    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
57      and portions thereof.  See read_cs.txt for description and examples.
58    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
59      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
60      following the great-circle arc between those 2 points.
61    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
62      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
63    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
64     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
65     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
66     - still needs work (not working with some options ; efficiency to improve)
67       and serious testing.
68     - use this scheme for temperature & salinity in 2 advection test exp.:
69       advect_xy & advect_xz, respectively.
70    
71    checkpoint58u_post
72    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
73    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
74    o testreport: add option "-skipdir" to skip some test.
75    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
76      momentum calculation.
77    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
78    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
79      remove checkpoint.F and the_correction_step.F (no longer used);
80      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
81    o add option (linFSConserveTr) to correct for tracer source/sink due to
82      Linear Free surface
83    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
84    o pkg/thsice: fix reading mnc-pickups
85    
86    checkpoint58t_post
87    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
88    o pkg/mdsio:
89     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
90       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
91       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
92     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
93     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
94       either MDS_READ_FIELD or MDS_WRITE_FIELD )
95     - new S/R (to replace MDSWRITEMETA), which allows to write more
96       informations (variable names, time ...) to meta files.
97     - modify rdmds.m to give back the meta file content.
98    o pkg/diagnostics: change vertical interpolation to be safer, and more
99       flexible (define p-levels to interpolate to in data.diagnostics);
100      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
101       diagnostic pointer.
102    o pkg/seaice: more cleaning up of seaice_growth, added many comments
103    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
104    o fix multi-category seaice:
105     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
106       SEAICE_MULTICATEGORY
107     - fix short wave heat flux
108    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
109       and allow to use EVP solver. Change forward lab_sea: test both EVP
110       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
111    o Initial check-in of lab_sea adjoint
112      (very similar to natl_box_adjoint/code_seaice)
113      * used C-grid and EVP solver
114      * used KPP, GM/Redi
115      * uses inAdExact=.TRUE.
116      * gradient checks fail for both ADM and TLM
117        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
118        f.d. gradients actually seem more problematic than ADM, TLM gradients;
119        issue is related to forward mismatch between g77 an ifort
120    o pkg/seaice: overhaul of thermodynamics
121     - growth.F and groatb.F are replaced by new routine seaice_growth.F
122     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
123     - move a few global fields out of SEAICE.h into seaice_growth.F and
124       make them 2D (FICE/QNETO/ ...)
125     - remove FO (it is the same as QNETO)
126     - introduce a few local fields to avoid modifying external fields such
127       as atemp, etc.
128    
129    checkpoint58s_post
130    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
131      changed exf_set_gen.F so that
132        genperiod=0 means input file is one time-constant field and
133        genperiod=-12 means input file contains 12 monthly means
134    o CG2D: use pre-computed solver main-diagonal (stored in common block);
135      this affects truncation error ; generate new output file for exp. which
136      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
137        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
138        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
139        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
140        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
141        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
142    o start implementation of deep-atmosphere and anelastic formulation
143    o verification: remove 2nd copy of input files and use script "prepare_run"
144      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
145    o mom_common/vecinv/fluxform: fix a few initialisation isssues
146    o profiles: fix for multithreaded case
147    
148    o diagnostics: rename few diags:
149      s/'PRESSURE'/'RCENTER '/g
150      s/'TICE    '/'oceFreez'/g
151      s/'TAUX    '/'oceTAUX '/g
152      s/'TAUY    '/'oceTAUY '/g
153      s/'SWFLUX  '/'oceQsw  '/g
154      s/DIFx/DFxE/g
155      s/DIFy/DFyE/g
156      and add few ocean-forcing diagnostics:
157      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
158    o modifications to pkg/seaice/growth.F and budget.F, which change results of
159      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
160      as actual snow thickness.  It now refers everywhere to effective snow
161      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
162    
163    checkpoint58r_post
164    o modifications to pkg/seaice/growth.F, which change results of
165      lab_sea experiment: fixes pertain to melting snow over open water, to
166      masking EVAP under sea ice, and to using the correct AREA variable for
167      computations of EVAP, PRECIP, HSNOW, and GHEFF
168    o add ability to read bathy, salt, and theta using MNC (off by def)
169    o add flooding algorithm and advection of HSNOW for pkg/seaice;
170      both are turned off by default and do no change any results
171    o seaice advection with pkg/thsice: a step toward the use of non-linear
172      advection scheme, but #ifdef or commented out for now (requires more EXCH).
173    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
174      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
175      in natl_box (affects results @ truncation level: update output.txt)
176    o multi-threading and IO:
177      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
178      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
179        (needed to work with SingleCpuIO): tested in all verif. exp.
180    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
181      affects the results (but none of the verification test uses this scheme).
182    o Adding some pkg/diagnostics capability to pkg/seaice
183      (will certainly be subject to changes)
184    o ctrl: adding new control variables:
185      lwflux, lwdown, evap, snowprecip, apressure, runoff
186    
187    checkpoint58q_post
188    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
189      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
190      high_res_cube configuration by 4% on Columbia.
191    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
192      add (in global_with_exf/code) a version of EXF_INTERP_READ without
193      dynamical allocation (seems to work in multi-threaded).
194    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
195      single CPU io) so that TAF does not have to see EESUPPORT.h
196    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
197    
198    checkpoint58p_post
199    o obcs: stop if obcs is used with useCDscheme = .true.
200    o shelfice:
201     - fix a sign error so that no slip at shelfice interface works
202     - remove stop for combination non-hydrostatic code and shelfice. That does
203       not mean, that the results are correct, but at least they are numerically
204       stable
205    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
206    o added adjoint exch routined for all exch*3d* routines
207      and updated flow directives
208    
209    checkpoint58o_post
210    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
211      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
212    o change controling S/R for writing pickup file (new S/R do_write_pickup)
213      and clean-up reading/writing of pickup files.
214    o fix local version of read/write pickup (NH part) in rotating_tank/code
215    o simplify EXCH interface:
216     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
217     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
218    o added the regrid package
219    o shelfice:
220     - add a simple boundary layer scheme to reduce noise
221     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
222    
223    checkpoint58n_post
224    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
225       local variable (not in common block).
226    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
227      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
228      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
229        to work with SingleCpuIO.
230    o add "_d 0" to real constant of pkg/cfc subroutines ;
231       update exp. cfc_exemple & tutorial_cfc_offline output files.
232    o multi-threading and IO:
233      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
234        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
235      - barrier before and after reading.
236      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
237      - avoid using MDS_WRITELOCAL for LAND pkg output.
238      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
239        common-block variables ; Allows multi-threading with master-thread IO.
240    o change default MAX_NO_THREADS from 32 to 4 ;
241      and stop cleanly when MAX_NO_THREADS is too small.
242    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
243    
244    checkpoint58m_post
245    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
246       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
247    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
248       keep global_ocean.90x40x15 (for AD testing) with former secondary test
249       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
250    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
251        add MITgcm_tutorials (= code + all the tutorials)
252    o ecco, option to compute cost for total ssh (mean+anom)
253    o consistent with addition of ptracer and ssh in pkg/profiles
254    o profiles: adding ptracer and ssh
255    o testreport: change multi-test output-file name
256      (from output.txt.{name} to output.{name}.txt)
257    o profiles: now ok for mutli-tiles case
258    o seaice: add 4 parameters for different advection schemes for area,
259      (effective) seaice thickness, enthalphy, and snow height. Their default
260      is the standard parameter SEAICEadvScheme
261    o calc_gw:
262     - add cosFacU in zonal viscous flux (harmonic.visc.).
263     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
264       of tutorial_plume_on_slope.
265    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
266    o calc_gw: true flux-form, account for horizontal grid spacing.
267      update rotating_tank results, but not plume_on_slope (affected at
268      truncation level, 11 digits).
269    
270    checkpoint58l_post
271    o calc_gw:
272     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
273     - remove side-drag for now (need to fix it); update plume_on_slope results.
274     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
275    o commit code to make SST/SSS weights spatially variable
276      (based on either variable in-situ or variable initial T/S weights)
277    o pkg/ecco:
278      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
279        now based on horizontally varying weights wthetaLev, wsaltLev
280      * cost_averagesflags now returns year indices in addition to day, month
281      * sflux balance is performed on annual basis
282        (sflxumm, sfluxmm2, bal_sfluxmm)
283      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
284        including separate counting and multipliers
285    o pkg/rbcs
286      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
287    
288    checkpoint58k_post
289    o testreport:
290     - always build in dir. "build" (if not there, mkdir build instead of building
291       & running in input)
292     - run in dir run (if it exists), in build otherwise.
293     - call prepare_run (if input/prepare_run exists)
294     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
295    o pkg/exf modifications to interpolation and rotation routines for more
296       reasonable treatment of North Pole singularity: for tracers North Pole
297       value is set to northernmost zonal-mean value, for zonal velocity it is
298       set to zero, and for meridional velocity it is set to northernmost value.
299    o pkg/exf/exf_check_range.F
300     - add tile index to diagnostics and move stop statement to the very
301       end of the routine.
302    o pkg/diagnostics: (diagnostics_main_init.F)
303      define title of isomorphic variables according to the current config.
304    o pkg/thsice with pkg/seaice dynamics:
305    - fix domain of computation (interior only, required for exf) and do exchanges
306    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
307    o towards a standard way of dealing with multi-threading in MONITOR
308      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
309    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
310       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
311    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
312    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
313    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
314       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
315    o tracer advection:
316     - clean-up and simplify calc_common_factors.F
317     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
318       advection subroutine (but still not used within DST advection S/R)
319    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
320    
321    checkpoint58j_post
322    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
323      from file (collects calls previously in FORWARD_STEP)
324    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
325    o adjoint store dir. adjusted accordingly
326    o genmake2
327      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
328    
329    checkpoint58i_post
330    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
331      on wind stress (SEAICEstressFactor defaults to 1.)
332    o Total number of Timers is finite (<=40): comment out 2 non-essential one
333      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
334    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
335      on CS-grid: no longer loosing mass.
336    o exf & curvilinear-grid: no longer modify longitude xC & xG.
337    o pkg/ggl90: fix sloppy output and fix a bug
338    o pkg/seaice: added SEAICEuseEVPpickup parameter
339      - Set to false in order to start EVP solver with
340        non-EVP pickup files when using SEAICEuseEVP
341      - fix sign error in diffusion in seaice_calc_rhs
342    
343    checkpoint58h_post
344    * Modifications for bottom topography control
345      o replace hFacC by _hFacC at various places
346      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
347      o add non-self-adjoint cg2d_nsa
348      o update autodiff support routines
349      o re-initialise hfac after ctrl_depth_ini
350      o works for 5x5 box, doesnt work for global_ocean.90x40x15
351    * Adding verification for 5x5 box (4-layer) bottom topography control
352    
353    checkpoint58g_post
354    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
355       used for mean seasonal cycle, mean diurnal cycle); add an example
356       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
357    o pkg/ggl90:
358      - add parameter (minimum surface kinetic energy)
359      - fix bug (avoiding division by zero)
360    o couple pkg/thsice to pkg/seaice:
361      - modify advection in seaice to accomodate new scalar fields to be advected
362      - only muliDimAdection scheme work with seaice/thsice
363      - mapping of thsice-variables to seaice-variables, back and forth
364      - does not break the verification experiments, but does not give the
365        desired results either
366    o pkg/seaice
367      - make (default) second order advection a bit less confusing?
368    
369    checkpoint58f_post
370    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
371      to pkg/seaice):
372      - new routines thsice_map_exf and thsice_get_exf provide the interface
373      - add an additional formal parameter to thsice_solve4temp
374    o pkg/exf:
375      - add new fields wspeed, snowprecip (to be able to couple to thsice)
376      - correct Stefan-Boltzmann constant
377      - new parameter for longwave surface emittance
378      - separate some stuff from exf_bulkformulae into new routines  
379        exf_radiation, exf_wind
380      - add new parameters and constants: longwave emissivity for ocean, ice
381        and snow, evaporation parameters over ice
382      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
383        either wind from stress or stress from wind
384    o pkg/thSIce:
385    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
386    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
387       and THSICE_CALC_THICKN
388    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
389    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
390      to make debugging easier.
391    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
392    o pkg/bulk_force:
393      - clean-up comments and parameters ;
394      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
395    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
396      generate new output for test-experiment: aim.5l_cs.thSI
397    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
398      testreport accordingly
399    
400    checkpoint58e_post
401    o SEAICE_CGRID adjoint done
402    o R_STAR adjoint implemented.
403      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
404      * need to sort out init. of h0facc, etc.
405    o Make pkg/profile fully independent of ecco,cost, etc. stuff
406      to be able to use it in pure forward.
407    
408    checkpoint58d_post
409    o upgrade simple test-experiment to tutorial example:
410     step.1: duplicate the experiment and (step.2) will remove the old copy.
411      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
412      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
413      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
414      tutorial_global_oce_biogeo    <- copy of dic_example
415      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
416      tutorial_plume_on_slope       <- copy of plume_on_slope
417      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
418      tutorial_global_oce_optim     <- empty for now (David ?)
419      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
420     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
421    o correct a sign problem in cost_scat.F
422    o obcs and ptracers: fix boundary conditions for advections schemes
423      with larger stencil
424    o thsice adjoint: start
425    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
426      completeness
427    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
428      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
429    o ptracers adjoint:
430      * avoid extensive recomputatations
431      * fix missing re-init. of gptr (missed by TAF)
432    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
433      me to turn off the excessive output to STDOUT that this package produces
434    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
435      and add those terms in Vector-Invariant formulation.
436    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
437      if the control period (xx_hfluxperiod etc) is 0
438    o in profiles pkg, clean routines and fix details
439    o in ecco pkg, reading ssh data:
440      fix problem in case the model does not start at iter0=0
441    o fix mnc-pickup/restart for ptracers
442    o new package prifiles:
443      code to compute profile-based cost by Gael Forget
444      (modifs in ecco, ctrl, autodiff)
445    o Benign bug fix in initialization (spotted by M. Mazloff) of
446      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
447    
448    checkpoint58c_post
449    o adjoint: finish NLFS adjoint and provide reference output in
450      verification/global_ocean.90x40x15/results_ad_nlfs
451    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
452      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
453      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
454      with SEAICE_CGRID defined.
455    o move calendarDumps from "data" to "data.cal" and clean-up the code
456      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
457    o add useEXF & useCAL flags (for now, set in hard-coded way)
458    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
459      (were missing in NH mode, and wrong in quasihydrostatic mode).
460      waiting for Chris updated version of calc_gw to add those CALLs.
461    o fix bug in quasihydrostatic S/R ;
462      add a test for this option: global_ocean.90x40x15.qshyd
463    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
464      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
465    o add on/off flag useOffLine for package OFFLINE
466    o seaice:
467      - modify advection so that it works also on the C-grid
468      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
469        problem in multi-tile runs with C-grid
470      - add flags for clipping ice velocities and/or masking solver forcing
471      - fix drag (ocean on ice) formulation and a bug that caused noise in the
472        C-grid solver
473      - added a few comments to seaice_diffusion.F
474      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
475        are now exclusive)
476      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
477        required re-ordering the code a little:
478       + make DAIRN global variable (defined in SEAICE)
479       + move computation of the viscosities eta and zeta into a new separate
480         routine (because I need to recompute them in seaice_ocean_stress.F)
481    
482    checkpoint58b_post
483    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
484      update output.txt of exp. aim.5l_cs.thSI
485    o various mnc cleanups and improvements:
486      + shrink lookup tables by factor of ~4
487      + better error reporting when running out of lookup space
488      + able to handle longer path/file names (up to 500 chars)
489    o adjoint:
490      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
491      - TBD: "hidden" mom_vecinv recomp. in dynamics
492    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
493     (allow to differentiate between forcing components using new integer flags:
494      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
495     and add new flag to put Dissipation tendency out of Adams-Bashforth.
496    o ecco
497      - enable trend removal from SSH anomaly obs.
498    o adjoint
499      - a fix for PmEpR when #undef EXACT_CONSERV
500      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
501      - try to fix "hidden" recomp. in forward_step for NLFS
502        (NLFS seems broken sometimes after I checked it in)
503    o seaice:
504     - add c-grid version of the dynamic solver:
505       + three new routines that are the c-grid substitute lsr, dynsolver
506         and ostres
507       + put a few fields that were local to dynsolver into global common
508         blocks, so that I can move the computation of stresses etc into
509         seaice_lsr (saves coding but may break the adjoint).
510     - replace more hardwired parameters by runtime parameters
511     - add ice masks that mask the rhs of the implicit solvers where there
512       is no ice (commented out in seaice_dynsolver, because i am not sure
513       if this works properly), eventually this should replace the clipping
514       of ice velocities in seaice_dynsolver to +/-40cm/s.
515    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
516      include it only where its needed
517    o move balancing of fluxes before the call of external_forcing_surf
518    o seaice:
519      - correct units of turning angles (now they are really in degrees)
520      - move computation of GWATX/Y out of main routine into dynsolver
521      - initialize GWATX/Y in seaice_init
522    o Apply mask on Fresh-Water flux (needed for SSH forcing).
523      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
524    o seaice: add runtime flags for turning angles (default to zero)
525    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
526      and trend from exf forcing and ctrl control adjustments
527    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
528      (since checkpoint57x_post)
529    o change the default rotation period to 86164.s = the Earth rotation
530    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
531      and based on a reference stratification. Tested within hs94.cs-32x32x5.
532    o seaice advection: add code for choosing between the default (2nd order
533      central differences) and multiDim advection schemes provided by
534      pkg/generic_advdiff
535    o seaice:
536      - removed all references to SEAICE_GRID.h fields from
537        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
538        (cubed-sphere configuration will change a little)
539      - grid computations in seaice_init are obsolete now.
540      - cleaned up code a little so that is easier to read (hopefully).
541      - added new (better?) discretizations of default advection and diffusion
542        (turn on with SEAICEuseFluxForm)
543      - replace 1 in 3d global fields by kSurface in growth.F
544      
545    checkpoint58a_post
546    o seaice:
547      - bug fix in advect.F
548    o shelfice:
549      - separate shelfice load anomaly from pload (breaks with time
550        dependent forcing), => introduce constant field shelficeLoadAnomaly.
551        Its default is 0., but it may be computed more cleverly from (unknown)
552        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
553        done offline. A good approximation of the pressure load anomaly is
554        necessary to avoid large initial adjustment processes underneath
555        deep-reaching shelfice.
556      - small fix in ISOMIP shelfice_thermodynamics
557      - add more sophisticated thermodynamics of Hellmer (1989), this is
558        now the default
559      - give a few constants more intuitive names
560    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
561      if bulk formulae are used in long integration (especially EmPmR). Turn
562      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
563      if balancePrintMean, the imbalance that is substracted is printed to
564      STDOUT.
565    o fix bug (typo) in obcs_apply_eta.F
566    o add a new package shelfice which enables us to model the circulation
567      underneath shelf-ice with draughts of hundreds of meters.
568     - works
569     - to do: + include improved thermodynamics
570              + check whether kSurfC (from model/inc/SURFACE.h) can be used
571                instead of new field kTopC
572              + can we use topoFile, Ro_surf and existing code in ini_depth.F
573                instead of new field R_shelfIce and new code in ini_depth.F
574                and ini_mask_etc.F?
575              + adjust vertical mixing schemes?
576    o seaice pkg:
577     - add a cpp-flag to include a simple formula for a salinity dependent
578       freezing point of sea water at the surface
579     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
580       meridional stresses are now different (and hopefully correct)
581    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
582       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
583       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
584    o pkg/diagnostics: add options and parameters for regional-statistics
585       diagnostics ; define regions by reading a region-mask from a file
586       (might add other options later)
587    o pkg/bulk_force:
588     - add option and parameters to use AIM surface-flux formulae.
589     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
590       others forcing fields (defined in PARM05, parameter file "data") are loaded
591       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
592     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
593     - use the right EXCH call for uwind,vwind (to work on CS-grid).
594     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
595       and parameters (note: calcWindStress replaces .NOT.readwindstress).
596     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
597    
598    checkpoint58
599    o add "--embed-source" option to genmake2 which, when the supporting
600      tools can be compiled (as determined by genmake2) will turn on the
601      embed_files package which then embeds the entire MITgcm source code
602      (*.[fFhc] + Makefile) used for the build within the executable
603      - requested by CNH but off by default
604      - adds a paltry <9MB to the mitgcmuv executable in most cases
605      - only writes the output when useEMBEDSRC in eedata is true
606    o clean up 3-dim. relaxation codes:
607      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
608      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
609      * Thanks to Tom Haine for testing!
610    
611    checkpoint57z_post
612    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
613      affects output (@ truncation level) of exp. plume_on_slope ; updated.
614    o fix the pickup behavior for obcs in combination with ptracers
615    o fix a bug in ptracers_external_fields_load
616    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
617      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
618    o transfered surface NH pressure to eta field (if exactConserv).
619    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
620         and update lab_sea output.txt file.
621    o completing 3-dim. relaxation code: additional term
622         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
623      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
624      * At compile time, in "EXF_OPTIONS.h" set
625          #define  ALLOW_CLIMTEMP_RELAXATION
626          #define  ALLOW_CLIMSALT_RELAXATION
627      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
628          tauThetaClimRelax3Dim = 15552000.0,
629          tauSaltClimRelax3Dim  = 15552000.0,
630      * 3 cases:
631          1) Use a constant-in-time 3-dim. field
632          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
633          3) Real-time relax. to time-evolving prescribed field
634    o Adding Laplacian-type smoothness constraint on
635      initial and boundary (forcing) controls (ic, bc)
636      * enable at compile-time via
637        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
638      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
639      * Absolute scale somewhat unclear so far
640      * no area weighting was included since no other cost term does so far
641    
642    checkpoint57y_post
643    First step for a NLFS adjoint
644    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
645    o new init. routines for calc_r_star, calc_surf_dr
646    o still need to deal with ini_masks_etc
647    o testreport seemed happy
648    checkpoint57y_pre
649    
650    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
651    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
652    o add new offset feature to offline pkg (plus minor cleanup)
653    o cfc fixes for final year of integration
654    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
655      be in GCHEM_OPTIONS).
656    
657    checkpoint57x_post
658    o fix testreport Pb in multiple test experiment.
659    o cleanup our namelist syntax in verification:
660      - make it more F95 standards compliant (some work still needed)
661      - allows the vast majority of our tests to work with gfortran
662    o Non-Hydrostatic:
663     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
664     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
665    o Allow to apply AB on T,S rather than on AB(gT,gS):
666     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
667     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
668       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
669     - need a "clever" read_pickup to restart from the other AB formulation
670    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
671    o remove some unused variables (reduces number of compiler warnings)
672    o adjoint
673      * Disable useVariableViscosity for adjoint for time being
674        (there are a number of extensive recomputations)
675      * Initialize certain variables needed for adjoint
676    
677    checkpoint57w_post
678    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
679                 fix the singleCpuIO RS version of MDSWRITEFIELD
680       and add a WARNING if using globalFiles=T with multi-processors.
681    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
682      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
683    o tracer advection scheme:
684      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
685       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
686       was not very convenient).
687      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
688       (further tests needed for the implicit DST & Flux-Limiter schemes).
689    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
690      and sRef for convenience, handy, when you want to initialize
691      ptracers in a large domain with a constant non-zero value. Also,
692      untangle ptracers_init.F a little.
693    
694    checkpoint57v_post
695    o change dome exp. to use variable viscosity in side-drag terms.
696    o remove all the files from the cfc_offline test since they are now
697      incorporated into tutorial_cfc_offline which has been producing
698      identical results for a few days of testing
699    o add new parameter: sideDragFactor to enable half-slip-side BC
700      and change side-drag S/R to use viscosity from mom_calc_visc
701      (can switch back by setting sideDragFactor=0.); affects results at
702      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
703       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
704    o vorticity & strain are now computed without masking, to account for
705      no-slip-side BC in variable viscosity calculation ; mask is applied
706      anyway later on, before computing advection/coriolis terms.
707    o modify exp4 to test new obcs support for reading from external files
708      and for passive tracers
709    o fix behavior of ptracers_monitor when monitor output is written to a
710      netcdf-file; still not independent of monitor.F (writes in the same
711      file).
712    o change default value of tRef (put a uniform, meaningful value for ocean
713      & atmos) and initialize sRef (was missing, as Martin mentioned).
714    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
715      to be proportional to enstrophy dissipation length.  Thus,
716       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
717      This is now consistent with Smagorinsky and with the manual.
718    
719    checkpoint57u_post
720    o OBCS and PTRACERS: add open boundary support for passive tracers
721      - either use homogenous (pseudo) v.Neumann conditions or prescribe
722        OB-values from file; this is not different from the way theta and salinity
723        are treated
724      - however, Orlanski-radiation conditions are not supported, and the model
725        will stop if you use pTracers and Orlanski at the same time.
726      - beefed up the rountine obcs_external_fields_load: now only those open
727        boundary values are overwritten with values from files for which there
728        are really files, otherwise the OB-fields remain untouched. This makes
729        it possible to use different OBs at different ends of the domain (as
730        with EXF)
731    o reduce number of exch calls in shap_filt (s2).
732    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
733      truncation level) 4/5 MLAdjust test results (11&12 digits match).
734    
735    checkpoint57t_post
736    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
737    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
738      same truncation, independent of the face number: affects affects several
739      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
740    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
741      note that biharmonic viscosity + no-slip was not tested in any experiment.
742    o fix bug in non-linear free-surf side-drag ; generate new output for
743      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
744    o make mnc honor the writeBinaryPrec flag for most kinds of output
745    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
746    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
747      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
748    o add brackets in multi-terms sum to get same truncation, independent of
749      the face number (manage to get exactly same value of gU,gV at the cs-edge)
750      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
751    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
752      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
753      a maximum grid-scale Reynolds number.  Also, changes all length calculations
754      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
755      Suggested values of viscosity parameters found in mom_calc_visc.
756      Many new viscosity diagnostics available.
757    
758    checkpoint57s_post
759    o Add clearing-house for viscosity calculations, mom_calc_visc and
760      correct numerous bugs in LeithD and Smagorinsky discretizations.  
761      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
762      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
763      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
764      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
765      The Strain-Tension form is now called with useStrainTensonVisc=.true.
766      ViscAhStrain and viscAhTension are now retired.
767    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
768    o In response to JMC's bug report, genmake2 now ignores any soft-links
769      that it finds in the *current* directory when searching for files.
770      Soft-links found in any other source directories will still work as
771      they did before.
772    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
773      a C routine to unlimit the stack size
774    o mnc-ify pkg/aim snapshot vars
775    o mnc-ify pkg/land as requested by Daniel
776    o various changes to mnc including:
777      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
778      - output can now be grouped so that all files within a group
779          change the ITER portion of their names in lock-step together
780      - can now read ("global") PER-FACE (in addition to PER-TILE) files
781          and works with both EXCH1 and EXCH2 (but needs more testing)
782      - writing works for all verification test cases w/ g77 on Linux
783    
784    checkpoint57r_post
785    o make MNC variable initialization happen earlier
786    o add diagnostics for (almost) each term of the momentum Eq.
787    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
788    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
789    o remove MINIMAL_TAVE_OUTPUT option ;
790      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
791    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
792      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
793    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
794    o add time-dependent SST, SSS control
795    o cost terms in ecco/ modularized (new cost_generic.F)
796    o cost_averages routines are modularized (new cost_averagesgeneric.F)
797    o new infrastructure for seaice model vs. obs misfits in seaice/
798      * driver from the_main_loop.F is seaice_cost_driver.F
799      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
800      * gradient check in Exp. 6a of natl_box_adjoint/
801    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
802      (see README file)
803    
804    checkpoint57q_post
805    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
806    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
807      - bug was reported by Jean-Michel and Ian Fenty
808    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
809      update exp. cpl_aim+ocn output.
810    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
811      Needed for high-res. runs with large global files
812      to be able to limit tapelev size
813    o Changed some tests for adjoint:
814      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
815      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
816      * global_ocean.90x40x15/ back to default 3-level checkpointing
817    o Modifications to enable scripted COMMON to MODULE conversion
818      * verification/OpenAD/code/ has necessary scripts and description;
819      * converts, compiles and runs successfully;
820    
821    checkpoint57p_post
822    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
823    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
824      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
825    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
826    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
827      (was already the case for dissipation with mom_vecinv,
828       and also the case for grad.PhiHyd when staggered-timeStep)
829      This will allow to put dissipation out-off the AB time-stepping.
830     Unfortunately, affects truncation error. Update output of exp. that "fails"
831      (cg2d matching number) and leave the others for later: front_relax(10),
832      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
833      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
834    
835    checkpoint57o_post
836    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
837      (2) its ready to be documented during the 20050801 DocFest
838    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
839      for ideal_2D_oce and lab_sea on linux_ia32_g77
840    o set to #undef CTRL_SET_OLD_MAXCVARS_30
841      in global1x1_tot/code_seaice_adj to access indices 32, 33
842      (worth another tag)
843    
844    checkpoint57n_post
845    o adding precip control xx_precip 32
846    o adding swflux control xx_swflux 33
847    o Replacing 10 forcing penalty cost routines by 1 generic.
848    o Implementing partitioning in time-mean and variable adjustment
849      for atmos. state.
850    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
851    o in natl_box_adjoint:
852      * updated exp 1 to 10
853        (but does not have time-mean vs. variable split results yet)
854    o updated global1x1/*_seaice_adj/
855      to incorporate latest changes
856    o enable useSingleCpuIO for mdsio vector routines
857      (applies in particular to tapelev I/O)
858    o removed inefficient K-loop in all active_file*control*.F
859    
860    checkpoint57m_post
861    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
862      and advect_cs (use EXCH-2 and standard cs-32 grid files).
863    o pkg/exch2: filling of face-corner halo regions is optional
864      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
865    
866    checkpoint57l_post
867     tag before updating tutorials (pre-release-2)
868    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
869       for output and interpolation of input fields onto model grid)
870    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
871       Affects results of exp. rotating_tank ; update output.txt.
872    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
873          and taking the square quantity and/or using a fraction-weight field.
874    o fix aim_diagnostics_init.F mate numbers.
875    o add mnc output capability to diagnostics/diagstat and update
876      our cvsignore files for the ACSII output generated
877    
878    checkpoint57k_post
879    o lab_sea now uses diagnostics package and provides a suite of
880      new EXF diagnostics output.
881    
882    checkpoint57j_post
883    o exf
884      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
885        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
886        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
887      * extended diagnostics output
888        - now includes all EXF variables
889        - hs, hl moved to common block
890        - separate S/R for diagnostics, called after ctrl vector is added
891        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
892        - EXFqnet contains true Qnet (i.e. includes qsw)
893      * updated verif. lab_sea, global_with_exf
894      * Rearranging hflux (exf_mapfields -> exf_getforcing)
895        to ensure that diagnostics sees a true EXFqnet
896    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
897    o diagnostics pkg: change pointers so that 1 diagnostic can be used
898      several times with different frequencies.
899    o mnc-ify the thsice package as requested by Daniel Enderton
900      - the monitor--MNC output needs work
901      - many attributes need to be added (most are currently blank)
902    o mnc-ify theaim_v23 package as requested by Daniel Enderton
903      - many attributes need to be added (most are currently blank)
904    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
905    o add Sadourny like discretization to the 4th.O vorticity advection scheme
906    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
907      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
908         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
909    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
910     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
911    
912    checkpoint57i_post
913    o Diagnostics package was changed: diagnostic allocation is now deactivated
914      by setting an empty file name in the namelist (used to be by setting 0 frequency)
915    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
916      add 1rst Order upwind vertical Shear.
917    o add a quick fix for A/B checkpointing in OFFLINE mode
918    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
919      end-run around the C/Fortran linking horror in eesup/src/timers.F
920    o added pkg/runclock: allows user to terminate run based on wall clock
921    o added non-hydrostatic scaling parameter: nh_am2
922    o pkg/my82: futile attempt to make results compiler-independent by adding
923      some "_d 0", etc. no effect.
924    o for mnc output, fill the 'T' coordinate var with myTime and create a
925      separate 'iter' variable for iteration count
926    o pkg/diagnostics:
927      add new capability: output of Global/Regional & per-level statistics ;
928      tested against monitor output (including land & thSIce) on various exp.
929    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
930    
931    checkpoint57h_done
932      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
933      data.diagnostics, data.gchem, data.ptracers) is done.
934    
935    o pkg/diagnostics: prepare for Global/Regional statistics.
936      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
937    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
938      and rename it: DIFFERENT_MULTIPLE
939    
940    checkpoint57h_post
941    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
942    o pkg/diagnostics: change output frequency, now in seconds (instead
943      of Nb of iterations). This requires to change data.diagnostics.
944    checkpoint57h_pre
945    
946    o in mnc, let the user create the output dir if both mnc_outdir_date
947      and mnc_outdir_num are false
948    o add fflags() to pkg/diagnostics which allows one to specify, on a
949      per-file basis, the file precision [default behavior is unchanged]
950    o added diagnostics to pkg/kpp, including computation of mixed layer
951      depth based on a temperature/density criterion
952    o updated verification/natl_box to test the new pkg/kpp diagnostics
953    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
954    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
955    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
956      not mnc -- this mistake was found by JMC and is now corrected
957    
958    checkpoint57g_post
959    o add Adams-Bashforth 3rd Order time stepping:
960      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
961      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
962    checkpoint57g_pre
963    
964    o make lambda[Theta,Salt]ClimRelax spatially varying
965      (default remains spatially uniform constant based on tau)
966    o added new control variables
967      * init. uVel, vVel, etanN
968      * lambda[Theta,Salt]ClimRelax
969    o separate masks used for ctrl_pack/unpack 'from write_grid' output
970      (suggested by G. Forget)
971    
972    checkpoint57f_post
973    o add parameter "baseTime" = model base time = time at iteration zero
974      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
975      account for baseTime shift
976    o move Coriolis arrays from PARAMS.h to GRID.h
977    checkpoint57f_pre
978    
979    o mnc-ifying the seaice package
980    o introduced an alternative length scale calculation for use in the limiting
981      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
982    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
983    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
984      as well as grad(vort3).  Made it compatible with both approximate form
985      for the cubed sphere and full form of these gradients.  Added flag
986      useFullLeith to select between approximate and full form.  
987    o add "d0" in getcon.F to reduce differences between compilers/platforms
988      update output.txt of exp. fizhi-gridalt-hs
989    o change port_rand funtion to allow to set the seed.
990    o fix obscure MNC bug involving conversion between reals and integers
991      - it caused no problems with certain (eg. gcc, ifc) compilers but the
992        new version is now more standards-compliant
993    o adjoint-related modifications
994      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
995      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
996      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
997    
998    checkpoint57e_post
999    o Adding eddy stress controls a la Ferreira et al.
1000    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1001    
1002    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1003      update output.txt of exp. fizhi-gridalt-hs
1004    o add more "Z" dimensions and associated coordinate vars to MNC
1005    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1006    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1007      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1008      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1009      months and years.  Requires pkg/cal.
1010    o diagnostics: add pickup functionality
1011      - off by default for backwards compatibility
1012      - current version only uses MDSIO -- MNC will be added
1013    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1014    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1015    
1016    checkpoint57d_post
1017    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1018    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1019      output from the diagnostics package
1020    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1021    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1022      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1023    o add coordinate variables to the MNC output from the diagnostics package
1024    o change MNC-flags default value: true when useMNC=TRUE
1025    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1026      the ability (off by default) to read the grid information using MNC
1027    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1028    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1029    o do snap-shot diagnostics at the middle of the time-interval (instead of
1030      at the end).
1031    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1032      new test for AIM with thSIce + slab-ocean
1033    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1034    o move state variable diagnostics to the beginning of the time step ;
1035      (note: still needs some work specially for snap-shot diagnostics)
1036      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1037    
1038    checkpoint57c_post
1039    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1040    o generate new output.txt files on faulks with g77 & the new -ieee option
1041    checkpoint57c_pre
1042    
1043    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1044      update output.txt of exp. global_ocean.90x40x15
1045    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1046      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1047    o add saltFlux(+File) forcing capability with periodicExternalForcing
1048    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1049    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1050    o improvements for the MNC output from DIAGNOSTICS:
1051      - correct handling of the unlimitied dimension
1052      - all dims now have associated coordinate variables
1053      - variables located at U, V, and Corner ("Z") points are now written
1054        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1055        *all* data points are output
1056    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1057    o added pkg/seaice/seaice_monitor.F
1058    o mdsio_readfield.F can now read files visible only to master MPI process.
1059    o pkg/seaice: some test code for ice-modified ocean stress
1060    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1061      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1062      spurious negative numbers for precipitation and humidity.  Will cause
1063      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1064    o pkg/ctrl/
1065      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1066        May be enabled via doPackDiag
1067      *  introduce z-scaling of
1068         + gradient (doZscalePack) and
1069         + control (doZscaleUnpack)
1070    o pkg/mdsio/
1071      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1072      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1073    
1074    checkpoint57b_post
1075    o simplify options in diagnostics_fill arguments (remove weird combinations)
1076    o fix MNC coordinate variables so that they now contain per-face index
1077      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1078      general, EXCH2 grids are only aligned to a "local" coordinate system
1079    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1080    o Implement instantaneous output within pkg diagnostics:
1081      setting a negative frequency in data.diagnostics produces
1082     "snap-shot" output (as opposed to time-average if freq > 0)
1083    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1084      NOTE: change ptracer diagnostics name: use 2 characters to work with
1085            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1086    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1087      becomes the coordinate variable for the 'T' dimension
1088    o add CF-style coordinate variables to MNC
1089      - just a first cut:  numbers are meaningless on the cubesphere and
1090        missing along the T axis but otherwise it works!
1091    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1092    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1093    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1094      this is based directly on what the model compute, so that the content of
1095      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1096    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1097    o clean up build options files for SunOS, in particular
1098      - remove -traditional from xmakedepend
1099      - change -xarch=v9 to -xarch=native for f77
1100      - restore use of make (not gmake)
1101      - add CC=gcc if using g77
1102    o changes per discussion of AM, JMC, & EH3 today:
1103      - move redundant "grid" variables out of "state" -- in preparation of
1104        creating proper CF-style coordinate variables and in recognition
1105        that any/all grid variables can be easily copied (eg. w/NCO) from
1106        the grid files into any of the other NetCDF files
1107      - *always* output grid variables with MDSIO (this will eventually be
1108        changed)
1109      - output MNC grid file if useMNC is true
1110    o every instance of _END_MASTER() has been found and replaced with
1111      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1112      preprocessors
1113    o re-arrange diagnostics pkg initialisation:
1114     - allow each package to extend the available diagnostics list
1115     - add some checking and fix small problems (multi-threaded, ...)
1116     - new S/R diagnostics_fill (replace fill_diagnostics):
1117       look through the short list of active diag. (instead of the long list)
1118       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1119    
1120    checkpoint57a_post
1121    o this set of changes restores TAMC compatibility
1122      tested for global_ocean.90x40x15 adjoint on trough
1123      (what a pain)
1124    
1125    checkpoint57a_pre
1126    o some modifs in tools/build_options for sunos
1127    o call ctrl_pack for ctrl at end for optimcycle=0
1128    
1129    checkpoint57
1130    o add horizontal bi-harmonic viscosity for vertical velocity
1131      - new parameter viscA4W (defaults to viscA4)
1132      - affects only non-hydrostatic code
1133      - to be done: no-slip lateral boundary conditions
1134    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1135    o implement Implicit Vertical advection for pTracers
1136    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1137      (implemented also for implicit vertical diffusion & advection)
1138    o OBCS: extend application of tracer open boundary conditions
1139      to a strip beyond the boundary of width Olx/Oly
1140    o add call monitor to TAF set of required calls (flow directives)
1141      and include in natl_box_adjoint
1142    o untangle a few ifdefs related to cost, ctrl, autodiff
1143      untangel a few ALLOW_ECCO_OPTIMIZATION
1144    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1145      (theta2, salt2 in ecco_cost_weights)
1146    
1147    checkpoint56c_post
1148    o OBCS as control variables
1149      - update ctrl_ad_diff.list, obcs_ad_diff.list
1150      - remove balance of obcs controls from default
1151      - fix index bug nobcs in ctrl_init
1152      - fix dummy fields filen in ctrl_pack
1153      - add dummy weights for obcs
1154    o lsopt: comment out fort.94 output
1155    o optim:
1156      - remove unnecessary header files
1157      - adjusted namelists
1158      - add xerbla.F to Makefile
1159    o exf:
1160      - multiple modifications of exf_check_range
1161      - unit change in exf_init_runoff from [m/year] to [m/s]
1162    o mdsio:
1163      - i/o-vector change debugLevel from debLevA to debLevB
1164    
1165    checkpoint56b_post
1166    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1167      is called from DO_THE_MODEL_IO
1168      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1169      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1170      - clean up PTRACERS_WRITE_TIMEAVE a little
1171    o add another verification experiment that tests both the cfc-pkg and
1172      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1173      reactive tendencies treated inline with regular timestepping
1174    o testreport previously did a lousy job of comparing small numbers, so
1175      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1176      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1177      testreport.
1178    o ptracers_monitor: bug fix for MPI
1179    
1180    checkpoint56a_post
1181    o GCHEM: finish reorganizating the package
1182      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1183        (introduces another 3D-array for each passive tracer, but only if
1184        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1185        gchemTendency is not needed because the timestep is done separately)
1186      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1187      - GCHEM is now---more or less cleanly---separate from PTRACERS
1188      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1189        so clear to me how that should be done in a general way.
1190    o CFC: improve formatting of output in CFC_ATMOS
1191    o PTRACERS:
1192      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1193        that ALL experiments with ptracers enable can be checked. This makes
1194        GCHEM_MONITOR obsolete.
1195      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1196        monitorFreq
1197      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1198    o add PTRACERS (PTR0[1-5]) to testreport output
1199    o exf_check_range:
1200      * default changed to .TRUE.
1201      * will check values for niter0 if debLevA, every timestep if debLevB
1202      * STOP in exf_check_range if 'out of range'
1203      * range chosen generous to allow for potential extema
1204      TBD: a version with stricter range
1205           permitted range would be runtime parameters
1206    o GMredi:
1207      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1208      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1209      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1210    o GCHEM:
1211      - move call to GCHEM_FORCING_SEP, so that it is now called before
1212        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1213      - introduced a useGCHEM runtime flag and applied it everywhere.
1214      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1215        this flag is now only visible within GCHEM-pkg routines.
1216      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1217        be replaced by a 3D array that is computed before thermodynamics; for
1218        this, the tracer ID iTracer had to be included into the parameter list
1219        of ptracers_forcing
1220      - set up forward_step to call gchem_forcing, that will replace
1221        gchem_forcing_int in ptracers_forcing
1222      - cleaning up
1223    o small cleaning of exch2: remove files that are also in eesupp/src
1224    
1225    checkpoint56
1226    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1227    o mnc: cleanup "full" files--fixes out-of-memory problem
1228    o ECCO-GODAE
1229      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1230      * fully merged and updated from SIO code
1231        windstress sign change affects
1232        - exf_inscal_[u/v]stress
1233        - sign of xx_tau[u/v] adjustments
1234        - signs in cost_scat
1235      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1236      * natl_box_adjoint updated and compressed
1237      * 2-level checkpoint switch added
1238        (tested in EXP. 1 of natl_box_adjoint)
1239      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1240    o SVD
1241      * first complete, non-hacked version for SVD calculations
1242      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1243        performed via direct access files admtlm_vector.it????
1244        (via ctrl_[un]pack)
1245      * optimcycle is used for ARPACK iteration counter
1246        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1247      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1248        and add linear transforms where necessary
1249      * controls are initial/final SST, SSS (can be extended; need to check
1250        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1251    o mdsio: filename info to both stderr, stdout
1252    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1253      from sign change
1254    
1255    checkpoint55j_post
1256    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1257      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1258    o add consistent build directories and .cvsignore files to verification
1259    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1260    o make all subroutines 30 or less characters in length for certain older
1261      compilers to work (a thorough search only turns up two routines in
1262      pkg/ptracers)
1263    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1264      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1265    
1266    checkpoint55i_post
1267    o change arrays for total vertical diffusivity (2.D if explicit,
1268      3.D if implicit) ; each ptracer uses its own background value.
1269    o added mnc/NetCDF output capability to ocn_compon_interf
1270      - added bits to verification/cpl_aim+ocn so that it can run on
1271        ITRDA and other clusters without the mpirun "-wd" option
1272    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1273      configuration
1274    o give MNC the ability to create additional files rather than
1275      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1276      - the default is just less than 2GB which is a practical limit
1277        on many systems
1278    o Compute the non-local term using either KPP vertical diffusivity (=default)
1279       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1280    
1281    checkpoint55h_post
1282    o add verification test "vermix"
1283    o remove all the *_ioinc flags and replace with the single global
1284      outputTypesInclusive flag
1285    o allow to set a vertical profile of vertical diffusivity for T & S
1286    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1287    o useMNC moved from data.mnc to data.pkg
1288    
1289    checkpoint55g_post
1290    o Renaming carbon AD experiments to comply with testreport conventions
1291    o Updating adjoint of Held-Suarez hs94.1x64x5
1292    o Fixing directives for non-ECCO forward_step, after ECCO directives
1293      have been fixed to avoid recomp. of do_oceanic_phys
1294      Works well for global_ocean.90x40x15,
1295      but recomp. issue remains for carbon
1296    o Updating adjoint output for natl_box_adjoint after
1297      pkg/ecco has been modified (see taga c55d_post)
1298    
1299    checkpoint55f_post
1300    o rename to timeave_init_fixed
1301    
1302    checkpoint55e_post
1303    o some delicate re-shuffle of store directives to avoid one
1304      extra call of do_oceanic_physics
1305      affects ecco_the_main_loop.F, do_oceanic_physics.F
1306      checkpoint_lev1_directives.h
1307    o NB: this may break global_ocean adjoint temporarily,
1308      but it is clear how to fix it. Will do later, need this now.
1309    
1310    checkpoint55d_post
1311    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1312    o ecco_cost_weights is modified to 1x1 runs
1313    o modifs to allow observations to be read in as
1314      single file or yearly files
1315    o enable to read exf forcing fields as either
1316      single file or yearly files (flag useExfYearlyFields)
1317    checkpoint55d_pre
1318    
1319    o switch between 2-level and 3-level checkpointing
1320    o add ability of MNC to write local and "partial" (eg. 2D slices where
1321      the full 3D field is never actually stored) arrays to NetCDF files
1322      with the correct (that is, the complete multi-dimensional) set of
1323      array indicies
1324      - used in mom_vecinv() to write the diagFreq output
1325      - tested (demonstrated) in verification/aim.5l_cs
1326    o further mnc-ification
1327      - add verification/lab_sea to the list with mnc setups
1328      - fix undefined mnc v-names in cd_code
1329      - add kpp to mnc output (both snapshot and timeave)
1330    o non-hydrostatic code
1331      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1332        in calc_gw.F
1333      - defaults to viscAh
1334      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1335        friction or Leith) in non-hydrostatic mode, as long as there is
1336        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1337    o pkg/cost
1338      extend simple cost functions to treat time mean quantities
1339      (T,U,V) via cost_accumulate_state from cost_tile
1340    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1341        be 2 times larger than the minimum size the advection scheme requires.
1342        now get a perfect conservation of salt in advect_cs test-exp (updated)
1343    o GGL90 (Gaspar's TKE mixed layer)
1344      - add horizontal diffusion of TKE, requires exchanges in
1345        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1346        default. In OPA there is no horizontal diffusion of TKE but the
1347        mixing coefficients are computed from a horizontal average of TKE of
1348        6 points or so. I think that diffusion has a little more physical
1349        justification.
1350      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1351        was in vain)
1352      - mask tke-variable in ggl90_init
1353    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1354    o fix biharmonic diffusion on CS-grid.
1355    o more obcs stuff
1356      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1357        for reading boundary values. This routine is called from
1358        obcs_prescribe_read
1359      - updated obcs_check
1360      - changed sponge layer relaxation parameter units for days to seconds
1361      - turned off sponge layer by default
1362      - changed argument list of OBCS_CALC to myTime+deltaTclock
1363      - fixed about 35 bugs in obcs_external_fields_load
1364    
1365    checkpoint55c_post
1366    o obcs stuff
1367      - new runtime flags useOBCSprescribe, useOBCSbalance
1368      - re-arranged obcs_calc
1369      - moved exf_getobcs to obcs_prescibe_read
1370        obcs_prescibe_read is called after ORLANSKI stuff
1371        and independent of it (executable can contain all).
1372      - updated obcs_check
1373      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1374        These may be necessary only if tangential velocities are
1375        prescribed at OB, not sure, needs testing.
1376    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1377      which simplifies the calls and passes the ifc check-bounds test
1378    
1379    checkpoint55b_post
1380    o add a 2D scalar, Z location, exchange_2 routine.
1381    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1382      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1383      affects advect_cs results (for the wrong reason): update output.txt
1384    o use a more standard discretization for biharmonic viscosity ;
1385     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1386      affects results of dome set-up: update output.txt
1387    o fix gad_advection.F (CubedSphere part), back to version 1.23
1388    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1389    
1390    checkpoint55a_post
1391    o merged code to
1392      * prescribe/read time-dependent open boundaries
1393        (works in conjunction with exf, cal)
1394      * sponge layer code for open boundaries
1395      * each boundary N/S/E/W now has its own CPP option
1396        (healthy for the adjoint)
1397    
1398    checkpoint55
1399    o up-to-date adjoint of previous breaks
1400      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1401      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1402      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1403      - carbon: * remove tr1-related adjoint verification
1404                * add ptracer as control variable
1405    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1406      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1407    
1408    checkpoint54f_post
1409    o in verification/carbin/ remove experiment related to
1410      ALLOW_PASSIVE_TRACER (array tr1 etc)
1411      code_ad/ input_ad/ results_ad
1412    
1413    o add two new packages
1414      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1415        + subject to optimization (memory)
1416      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1417        + subject to reordering (many GOTOs in the original code)
1418        + so far opps is called for every (i,j) point, and then operates in
1419          the vertical; one may want to reorder the scheme in order operate in
1420          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1421          fields)
1422    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1423      - all verification tests compile and run with linux_ia32_g77
1424      - defaults are compatible with current input files--nothing
1425        should change if you were not previously using MNC
1426      - MNC output has been added in numerous places (eg. timeave)
1427        but there are still a few writes not yet do-able with MNC
1428        (this is in progress)
1429      - flags now allow for either/or/both use of MDSIO and MNC and
1430        documentation will soon follow
1431      - numerous small formatting cleanups for ProTeX
1432    o add version info (via BUILD_INFO.h) to MNC and stdout
1433    
1434    checkpoint54e_post
1435    o add two new packages
1436      - pp81 (Packanowski and Philander, 1981), Richardson number and
1437        stratification dependent mixing
1438      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1439      - these scheme operate in a similar manner as KPP (without ghat, of
1440        course), however there is only one diffusivity that is used for both
1441        temperature and salinity (and passive tracers)ç
1442    o add offline package
1443    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1444      provided by Stephanie Dutkiewicz
1445    o genmake2: add ability to search for C compilers and cleanup test output
1446      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1447    
1448    checkpoint54d_post
1449    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1450    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1451      leading to additional shift by 5 days each year of integration
1452       (i.e. leading to considerable offset over the years)
1453    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1454    o start with no AB and no initial filtering (staggerTimeStep):
1455      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1456    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1457      (external loading & cpl import/export stay in forward_step.F)
1458    o update coupling interface to work with new staggerTimeStep
1459    o change MDSIO ptracers_pickup.
1460    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1461    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1462    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1463    
1464    checkpoint54c_post
1465    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1466      this affects (truncation error) output.txt of test-exp:
1467       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1468    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1469    o change Qnet to always be the net heat flux, (+upward).
1470      affects (truncation error) output of natl_box exp.: updated
1471    o define the max number of passive tracers in PTRACERS_SIZE.h
1472    o start to test mnc routinely in exp0
1473    o add sea-ice loading (sIceLoad) as a new forcing field.
1474    
1475    checkpoint54b_post
1476    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1477       impressive on Altix and Opteron systems)
1478    o diagnostics can now write NetCDF files through the mnc package
1479    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1480    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1481    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1482      affects (truncation error) output of lab_sea & natl_box exp.: updated
1483    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1484    
1485    checkpoint54a_post
1486    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1487    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1488    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1489    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1490      + internal_wave (shift in writing cg2d_ini_res)
1491    checkpoint54a_pre
1492    
1493    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1494      - modified verification/lab_sea and natl_box_adjoint accordingly
1495    
1496    checkpoint54
1497    checkpoint53g_post
1498    o prepare splitting of thermodynamics: store convect.counter in common block
1499    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1500      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1501    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1502    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1503    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1504    o restore adjointability
1505    
1506    checkpoint53f_post
1507    o modifications that affect AIM experiment results (update output.txt):
1508      - no advection of S at top interface Nr (pkg/generic_advdiff)
1509      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1510    o AIM pkg:
1511      - include stability function into surf.Flux derivative relative to Tsurf
1512      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1513    
1514    checkpoint53e_post
1515    o merged cylindrical coord configuration
1516    o added rotating_tank experiment
1517    checkpoint53e_pre
1518    
1519    checkpoint53d_post
1520    o faulks upgraded: re-generate output.txt that have changed:
1521       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1522    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1523    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1524    o added Sadourny discretization of Coriolis
1525      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1526      - re-enabled use of omega3 (useAbsVorticity)
1527    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1528      vector-invariant equations
1529      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1530    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1531      hopefully without new bugs
1532      - still to do: biharmonic friction for non-hydrostatic w
1533    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1534    o regenerated output for global_ocean_ebm (using -ieee)
1535    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1536      of mom_common/
1537      - simple re-arrangement of instructions within computing loop
1538    checkpoint53d_pre
1539    
1540    checkpoint53c_post
1541    o new version of coupler for AIM+thSIce and Ocean models
1542     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1543     - land: change Evaporation of snow
1544     - aim with thSIce: fix bug in snow-precip.
1545    o changes to calc_gw.F
1546     - bug fix for w^2 term near the bottom boundary
1547     - (hopefully) improve the lateral slip boundary condtions for use with
1548        partial/looped cells
1549      - because the bug fix changes two verification experiments anyway (exp5
1550        and plume on slope), change the lateral boundary condition from half slip
1551        to the value of no_slip_sides
1552    o ebm package wasnt quite up to the parallel task. Fixed that.
1553    o Adjoint of EBM package + verification
1554      * TLM OK
1555      * ADM not sufficient accuracy yet (needs further testing)
1556    
1557    checkpoint53b_post
1558    o Commiting new energy balance model to repository
1559      * package is pkg/ebm
1560      * verif. is verification/global_ocean_ebm
1561      * references are in ebm_driver.F
1562    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1563    C        Global thermohaline circulation. Part I:
1564    C        Sensitivity to atmospheric moisture transport.
1565    C        J. Climate 12(1), 71-82
1566    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1567    C        Global thermohaline circulation. Part II:
1568    C        Sensitivity with interactive transport.
1569    C        J. Climate 12(1), 83-91
1570    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1571    C        Destabilization of the thermohaline circulation
1572    C        by atmospheric eddy transports.
1573    C        J. Climate 7(12), 1870-1882
1574    o Will need long integration testing.
1575    checkpoint53b_pre
1576    
1577    o created pkg/mom_common in preparation for variable viscosity code
1578    o renamed and split ini_mnc_io
1579    o pkg/land: only liquid water can diffuse or run-off
1580    o AIM using land: soil wetness availability account for snow
1581    o added printMapIncludesZeros to EEPARMS namelist
1582    
1583    checkpoint53a_post
1584    o restore TAMC compatiility for exf_constants.h
1585      (no usage of _d in .h)
1586    o Additional storing in KPP in an attempt to fix
1587      TAMC problem with adjoint of KPP code.
1588      (no success...)
1589      Identical code works fine with TAF.
1590    o Fixed verification/natl_box_adjoint experiments.
1591      Initial conditions for Experiments 4 and 5 are now
1592      set to "SEAICE_initialHEFF=0", which is more reasonable,
1593      and hence gives results closer to that of Experiment 2.
1594      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1595    
1596    checkpoint53
1597    o stable checkpoint with up to date adjoint
1598      TLM tests only run for 1st grdchk at the moment. Its unclear if
1599      this is a code problem or a problem with resetting code for g_
1600      variables that is being autogenerated wrong.
1601      Otherwise:
1602       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1603       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1604         are both still in chaos following their security messes.
1605    
1606    checkpoint52n_post
1607    o various build (mostly genmake2) changes including:
1608      - ability to build/run more easily within Cygwin and MacOS X
1609      - more complicated Makefiles with a stronger dependence on Gnu Make
1610    o pkg/seaice modifications
1611      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1612        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1613        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1614      - changed proxy for geostrophic velocity and updated
1615        verification/lab_sea/results/* accordingly
1616      - removed ADI dynamic solver from pkg/seaice
1617      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1618        they caused a segmentation fault under certain circumstances
1619      - removed unused field WATR
1620    o bug fix in exf-package:
1621      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1622         now reflect that.
1623    o small fixes in the cal-package:
1624      - set reference date to first of January for the 'model'-calendar
1625      - failing of cal_CheckDate in cal_FullDate now actually results in a
1626        warning
1627    o small modifications in exf-package to increase flexibility:
1628      - change climtempfreeze from a constant to a runtime parameter that
1629        is specified in data.exf_clim (default = -1.9)
1630      - introduce runtime parameter windstressmax (default = 2.0) that is
1631        specified in data.exf
1632    o fix in pkg/thsice:
1633      - update Evap (Tsf changes) to be consistent with Latent heat flux
1634      - maintain snow precipitation unchanged (even if Tsf >=0).
1635     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1636    
1637    checkpoint52m_post
1638    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1639      this does not change any of the results, because myIter=0 in swfrac always
1640      lead to jwtype=2 (the default anyway), but the call makes little sense
1641      as a default
1642    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1643    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1644      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1645    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1646    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1647    o extending useSingleCpuIO option to work with new exch2 I/O format
1648      - old-style, missing-tile I/O is still accessible by defining CPP
1649        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1650    o monitor package can write to NetCDF files and/or STDOUT
1651    o fix re-definition bug in MNC_GRID_INIT_ALL()
1652    o doc/api_reference added
1653      - a framework for building an API Reference Manual using all
1654        the "protex" comments embedded in the code
1655      - see pkg/generic_advdiff, pkg/mnc for examples
1656    o MNC:
1657      - make myThid the last argument for all subroutines
1658      - new default for the grid files: NO halos
1659      - add useMNC and other run-time flags
1660      - separate per-file-group handling of the unlimited dimension
1661      - early initialization of MNC w/ flags read at the eeboot stage
1662        and lookup tables set in initialize_fixed
1663      - write all MNC output to a freshly-created directory
1664    o thermodynamics sea-ice (thsice) is now tested with testreport.
1665    o test exp. advect_cs: use the standard cs32 grid ; update output.
1666    o Added functionality to grdchk:
1667      pick global i,j,k position (or nearest wet) where to perform check.
1668    
1669    checkpoint52l_post
1670    o new land formulation:
1671      a) use ground enthalpy as prognostic variable to ensure exact
1672         energy conservation.
1673      b) account for water temperature and for latent heat of freezing
1674         in all processes (rain, run-off, ground storage)
1675      c) compute surface and ground temperature implicitly.
1676    o aim_v23 modification for new land model:
1677      a) Treat separately land / ocean / sea-ice surface fluxes
1678         to allow implicit computation of land & sea-ice surface temp.
1679      b) add snow precipitation.
1680    checkpoint52l_pre
1681    
1682    o fix problem (when 1 tile is empty) in min/max monitor.
1683    o fix bug in timeAve (u,vZetatave in common block)
1684    o no restoring terms under ice for pkg/seaice
1685    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1686    o bug fix for pkg/seaice pickups
1687    o change MNC call locations and add coordinate attributes
1688    o mask vorticity at the corner ; affects global_ocean.cs output
1689    o fix ini_curvilinear_grid ; test CS experiments with mpi
1690    o aim.5l_cs: modify sea-ice fraction input file ; update output
1691    o exf: Adding simple range check routine for exf fields after read
1692    
1693    checkpoint52k_post
1694    o removed top-level directory "diags"
1695      - we migrated these functions to pkg/timeave a long time ago
1696    o fixed bug introduced in pkg/monitor
1697    o accuracy ctrlprec = 32 insuffient for gradient checks using
1698      averaged fields (I/O via cost_averages)
1699      -> use ctrl.h in active_file*.F to control I/O precision.
1700    o paramter list of CALL ADTHE_MAIN_LOOP
1701    o added initial do_the_model_io to ecco
1702    o set all ...Freq to zero after cost_final
1703      taveFreq, dumpFreq, pChkptFreq
1704    o MAIN and ECCO differentiability restored
1705    
1706    checkpoint52j_post
1707    o fix nchklev in tamc.h for global_ocean...
1708    o Bringing flow and store directives up-to-date
1709    o Really weird thing!
1710      call do_the_model_io from the_main_loop with parameters
1711      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1712      TAF places a faulty re-call of initialise_varia
1713      after cost_final call which should not be there!
1714    checkpoint52j_pre
1715    
1716    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1717      error messages
1718    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1719    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1720      debug output
1721    o modfied mdsio_writefield.F to handle non-global files under exch2
1722    o update AIM Cubed-Sphere exp (aim.5l_cs):
1723      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1724    o update AIM Equatorial Channel exp:
1725      use standard aim_v23 pkg and change the SST fields to be more realistic.
1726    o globalFile now works with exch2
1727    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1728      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1729    o limit timeave output for hi-res integrations
1730    
1731    checkpoint52i_post
1732    o removed CPP_EEOPTIONS.h from verification/*/code
1733    o updated the tiling for global_ocean_pressure
1734    checkpoint52i_pre
1735    
1736    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1737      the old pkg/aim).
1738    
1739    checkpoint52h_pre
1740    o shortened offending lines in exch2_send_rx?.template
1741    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1742    o genmake2: add build & execute test for NetCDF code
1743    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1744      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1745    o added useSingleCPUIO flag to monitor.F and mon_out.F
1746    o added temporary hack for sea-ice dynamics on the cube:
1747      metric terms are ignored and it is assumed that
1748      there is no sea-ice on cube faces 1, 2, 4, and 5.
1749    
1750    checkpoint52f_post
1751    o added exch2 cube routines to pkg/exch2
1752    o modified hs94.cs-32x32x5 to use it
1753    o added new grid files to hs94.cs-32x32x5
1754    checkpoint52f_pre
1755    
1756    checkpoint52e_post
1757    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1758      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1759    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1760      to work with implicit vertical advection and AB ;
1761    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1762    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1763     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1764    checkpoint52e_pre
1765    
1766    o fix bug in impldiff when Nr=1 or Nr=2.
1767    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1768    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1769    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1770      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1771    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1772    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1773    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1774    
1775    checkpoint52d_post
1776    o re-tiled many expts to allow comparison in multi-processor mode
1777      - updated output accordingly
1778      - changed hs94.128x64x5 to use intial T from file rather than use the
1779        random number generator
1780    o add infrastructure in model routines for fizhi and gridalt packages
1781    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1782    o changes to permit hi-res, cubed-sphere, configuration
1783      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1784      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1785      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1786        of surface winds for the cube
1787      (A verification experiment, based on global_ocean.cs32x15, but with
1788       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1789       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1790       complete with example surface forcing files and matlab scripts to look
1791       at the output and compare it with that of global_ocean.cs32x15.)
1792    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1793       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1794       to conform to the common rule.
1795    o check-in the first version of the coupler + interfaces for multi-components
1796       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1797       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1798       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1799       - ocean and atmos. share the same horizontal grid (no interpolation).
1800       - exchanges between component and coupler is done in forward_step
1801    o new verification experiment, cpl_aim+ocn:
1802       coupled ocean - AIM atmosphere on cs32 grid.
1803    
1804    checkpoint52d_pre
1805    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1806    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1807    
1808    checkpoint52c_post
1809    o Fixing OPTIONS files for use of exf:
1810      - ALLOW_ECCO not needed
1811      - ECCO_CPPOPTIONS.h should not be included from
1812        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1813        as has been the case in the past
1814      - All cal/exf related options are currently set in
1815        single header file. Should remain so until we
1816        agree on a consistent new policy.
1817    o Removed all CPP options for cal package.
1818      cal has no more CPP options.
1819    o modified STOREs in GAD_ADVECTION
1820    o corrected key comp. for passkey
1821    
1822    checkpoint52b_post
1823    o new version: "thsice" of thermodynamic sea-ice pkg:
1824     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1825     - modify fluxes but do not change theta directly;
1826     - light cleaning of bulk_force pkg (still needed with thsice).
1827     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1828       + output_thsice.txt to test thsice & bulk_force pkgs.
1829    o put back grid & coriolis monitor output.
1830    checkpoint52b_pre
1831    
1832    o call "do_the_model_io" at the beginning (=> dump initial state)
1833    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1834    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1835      (need info on NUMBER_OF_PTRACERS)
1836    o missing PTRACERS headers in some routines
1837    o default tamc.h in pkg/autodiff supposed to crash
1838      to ensure proper customization
1839    
1840    checkpoint52a_post
1841    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1842      - moved surfaceTendencyTice from pkg/seaice to main code
1843      - subroutine FREEZE_SURFACE now limits only surface temperature
1844        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1845        => new output.txt for global_ocean.cs32x15 & global_with_exf
1846      - keep the old version of FREEZE for backward compatibility;
1847        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1848      - corresponding modifs for TAF directives
1849    o added surface flux output variables to TIMEAVE_STATVARS
1850    o time-averaged output for pkg/ptracers
1851    o fix problem with ECCO-related divided adjoint
1852      snapshot file was missing some ad-variables,
1853      but no warning issued by TAF
1854    
1855    checkpoint52a_pre
1856    o some bug fixes for #undef REAL4_IS_SLOW
1857    
1858    checkpoint52 = ecco_c52_e35
1859    o after testing adjoints of checkpoint51u_post
1860    
1861    checkpoint51u_post
1862    o this is the post-merge tag of the ecco-branch
1863      (needs another clean checkout and re-testing)
1864    o various natl_box_adjoint configs and results
1865      but no input fields
1866    o obcs adjoint not yet merged!
1867    o adding ECCO global 1x1 and 2x2 degree configs
1868    o updated/extended some store directives for seaice
1869    o pkg/ecco now containes ecco-specific part of cost function
1870    o top level routines the_main_loop, forward_step
1871      supersede those in model/src/
1872      previous input data.cost now in data.ecco
1873      (new namelist ecco_cost_nml)
1874    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1875    
1876    checkpoint51t_post
1877    o this is the pre-merge tag of the ecco-branch
1878    
1879    checkpoint51s_post
1880    o cleanup: removed various obsolete #define-s
1881    o pkg/grdchk
1882      - renamed 'ph-grd 3' to 'grad-res'
1883      - merged from ecco-branch
1884        (remaining bug fixes for obcs gradient checks)
1885      - additional high-precision output for testreport
1886        (grep for 'precision_grdchk_result')
1887    
1888    checkpoint51r_post
1889    o cleaned up or removed CPP_OPTIONS.h files
1890    o updated results for some of the tests to reflect the new
1891      optfiles (-ieee: -O0 instead of -O3)
1892    
1893    checkpoint51q_post
1894    o cd_code:
1895      - moved cd_scheme.F -> cd_code_scheme.F
1896      - separate read_checkpoint from cd_code_ini_vars.F
1897      - separated cd_code part from write_checkpoint
1898      - updated AD_SOURCE, generated .flow
1899      - added CD_CODE_VARS.h to the_main_loop
1900      - Moving cd_code specific store dir.s to pkg/cd_code
1901    o ctrl package totally restructured
1902      - pack/unpack now optional and decoupled from
1903        xx_/adxx_ I/O
1904      - ctrl_pack/unpack cleaned
1905        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1906      - confined inclusion of AD_CONFIG.h to where necessary.
1907    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1908    
1909    checkpoint51p_post
1910    o create initial cd_code package
1911      - WARNING: the initialization of fields within packages
1912        is broken because INI_FIELDS (where READ_CHECKPOINT is
1913        called) is called *before* PACKAGES_INIT_VARIABLES.
1914        This seems to be backwards since
1915        1) its important to initially zero the entire field including
1916           the "halo" region
1917        2) zeroing needs to be done *before* reading pickup info
1918           and the pickup call might or might not happen in any
1919           particular run
1920      - this needs an overhaul for R2
1921    o cleanup verification/*/code/GMREDI_OPTIONS.h
1922    o cleanup testreport
1923    
1924    checkpoint51o_post
1925    o bringing AD-related verif's up to date with genmake2
1926      - carbon/
1927      - global_ocean.90x40x15/
1928      - hs.94.1x64x5/
1929      - (front_relax/ )
1930    o (more) consistent directory structure for AD-related verif.'s
1931    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1932    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1933    o bug fix in find_alpha.F for MDJWF:
1934      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1935        change rho -> rho-rhoConst
1936      - replace call find_rho to find_rhonum
1937    o initialisation of rFlx extended to full array (required by TAF)
1938      and shifted to thermodynamics
1939    o removed PTRACERS.h in ptracers routine
1940    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1941    o Correcting initialisations for fVerU, fVerV.
1942    o helping TAF to recognize dependency on kUp for
1943      fVerU, fVerV
1944    o Replacing delZ by delR in pkg/ctrl/
1945    checkpoint51o_pre
1946    
1947    o undid all of cp51 pending some cleanups and discussion
1948    o added the [#include "AD_CONFIG.h"] statement to all files that need
1949       it for adjoint/tl #defines
1950     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1951     o removed tools/genmake since it no longer works
1952    
1953    checkpoint51n_post
1954    o modifications to make FREEZE flux visible to pkg/kpp
1955      - moved surfaceTendencyTice from pkg/seaice to main code
1956      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1957      - subroutine FREEZE now limits only surface temperature
1958        (this means new output.txt for global_ocean.90x40x15,
1959         global_ocean.cs32x15, and global_with_exf)
1960    o added surface flux output variables to TIMEAVE_STATVARS
1961    
1962    checkpoint51n_pre
1963    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1964    o added [#include "AD_CONFIG.h"] to all files that use the following
1965      defines:
1966      - ALLOW_ADJOINT_RUN
1967      - ALLOW_TANGENTLINEAR_RUN
1968      - ALLOW_ECCO_OPTIMIZATION
1969    
1970    checkpoint51m_post
1971    o incorporating changes to get TAMC/TAF working in genmake2
1972      - added new TAMC/TAF targets to the Makefile
1973      - various cleanups related to package handling
1974      - these changes should have no impact on the forward model
1975    
1976    checkpoint51l_post
1977    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1978     - faster algorithm for cal_addtime.F
1979     - higher precision arithmetic, where needed
1980     - pkg/exf *startdate variables changed from calendar date to
1981       model integration time
1982    
1983    checkpoint51l_pre
1984    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1985    o enable to apply restoring on S & T only in a latitude band.
1986    o update output (external_forcing_surf modif. change truncation errors)
1987       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1988    
1989    checkpoint51k_post
1990    o change default to: useNHMTerms=.FALSE.
1991     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1992       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1993     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1994        exp1, ideal_2D_oce
1995     - change data file of oceanic exp (leave the results unchanged for now)
1996       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1997    o set gravitySign automatically according to the vertical coordinate used
1998      (and change sign: back to "logical" value: +1 when R increases downward)
1999    o added an include barrier to the default CPP_OPTIONS.h and
2000      removed the #include "PACKAGES_CONFIG.h" from it
2001    o fix a bug in mom_fluxform (from chk51j_post)
2002    
2003    checkpoint51j_post
2004    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2005    o adjusted some flow directives (dynamics, thermodynamics)
2006    o added cubed-sphere case to test cost function
2007    o heckpoint_lev?_directives.h now include
2008      pkg-specific directives, whenever those are enabled.
2009    o Moving pkg-specific flow directives to corresponding pkg
2010      Moving pkg-specific differentiation list to corresponding pkg
2011      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2012      ---> conventions are
2013           - pkg_ad.flow
2014           - pkg_ad_diff.list
2015           - pkg_ad_check_lev?_dir.h
2016    
2017    checkpoint51i_post
2018    o merge of the branch-genmake2
2019      - knowingly breaks the older genmake
2020      - automatic generation of all ALLOW_${PKG_NAME} defines
2021      - new testreport supersedes older testscript
2022    o large number of package inclusion and header cleanups
2023    checkpoint51i_pre
2024    
2025    o new output for adjoin of global ocean vector invariant
2026    o fix for checkpoint of thermodynamic seaice and bulk_force
2027    o Steph gchem various cleanups
2028    
2029    checkpoint 51h_pre
2030    o fixed some single quotes
2031    o modify gchem pkg to be more versatile
2032    o modifications to clean up dic pkg
2033    o add pkg/cfc
2034    
2035    checkpoint51g_post
2036    o provide links for ARPACK and ADM*TLM
2037    o start removing verification/vero/
2038    o update AD-related stuff
2039      (in particular some IF-statements in model/src/ routines)
2040    o adding to verification/global_ocean.90x40x15/ adjoint of
2041      vector invariant setup
2042    
2043    checkpoint51f_post
2044    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2045    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2046      of tracer Green's fucntions for ocean inversion project.
2047    
2048    checkpoint51f_pre
2049    o Added on-the-fly spatial interpolation capability
2050        "USE_EXF_INTERPOLATION" to pkg/exf.
2051      - This is a temporary Cartesian-grid hack until
2052        the super-duper ESMF coupler becomes available.
2053      - See verification/global_with_exf/README for usage example.
2054      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2055        flags and modified pkg/seaice accordingly.
2056    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2057        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2058        non-local transport term.
2059    
2060    checkpoint51e_post
2061    o pkg/mom_vecinv:
2062      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2063      - add time-ave diagnostic of vorticity advection.
2064    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2065    o atmospheric geopotential: - include water vapor effect;
2066                                - use p^kappa in p* scaling.
2067    o land pkg: read initial state from files.
2068    o AIM : add stratospheric drag in the upper level
2069    
2070    checkpoint51d_post
2071    o change function ILNBLNK (=> last non-blank char.) to return zero
2072      (instead of the string length) when the string. char is empty
2073    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2074    o modif's to restore TAMC compatibility
2075      - avoid "_d" constructs in PARAMETER declarations
2076      - avoid interrupting lines by comment lines
2077    o Use cluster local disks for purely local I/O
2078      vs. globally visible disks needed for ctrl stuff
2079      (merged from ecco-branch)
2080      - new active_file_loc... and mdsio_..._loc routines
2081      - affected packages: autodiff, ctrl, grdchk, mdsio
2082    
2083    checkpoint51c_post
2084    o introducing integer flag debugLevel
2085      - debLevZero: suppress all output
2086      - debLevA: standard
2087      - debLevB: equivalent to current debugMode=.TRUE.
2088    o introducing pathname variable mdsioLocalDir for mdsio
2089      that can be specified at runtime
2090      (relevant for cluster I/O to local disk)
2091    `
2092    >>>checkpoint51b_post
2093    adjoint of ptracers
2094    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2095    o extended state in checkpoint_lev?, etc.
2096    o alternative ctrl/cost with tr1 or ptracer
2097    o new comlev1_bibj_ptracers
2098    o new ptracers.flow
2099    o made ptracers_forcing same as external_forcing_s
2100    o added verification for adjoint with ptracers
2101      - adm. grdchk fail so far
2102      - tlm. grdchk OK
2103      - checked tapelev/comlev recomputations: OK
2104    <<<checkpoint51b_pre
2105    
2106    checkpoint51a_post
2107    o added code for biogeochemistry package
2108      - new pkgs: dic, gchem
2109      - new subroutine in ptracers
2110    o modify code for biogeo packages
2111      - in model/src and pkg/ptracers
2112    
2113    checkpoint51
2114    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2115      - autodiff, ctrl, exf, grdchk, seaice
2116      kept separate packages
2117      - cost, ecco, obcs
2118    o updating verification/internal_wave, verification/lab_sea
2119      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2120    
2121    checkpoint50i_post
2122    o Preparing next differentiable checkpoint and sync
2123      of MAIN vs. ecco-branch
2124      - 1st step: this one is differentiable
2125      - 2nd step: next(! not this) checkpoint will have updated packages
2126                  from ecco-branch)
2127    
2128    checkpoint50h_post
2129    o new package "land": provide surface BC for AIM.
2130    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2131    o AIM: use true log-P extrapolation for near surface temp (= as in
2132        F.Molteni paper) ; update aim.5l_cs output.
2133    o New variable in PARM03 for more flexible pickups
2134    o somewhat cleaned package initialisation sequence for
2135      ctrl/ cost/ ecco/ in packages_... routines
2136    
2137    checkpoint50g_post
2138    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2139      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2140      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2141        made the default because of faster convergence than ADI
2142    
2143    checkpoint50f_post
2144    o exf totally restructured
2145      - replaced all exf_set_ routines by one generic exf_set_gen.F
2146        and made sure it's still differentiable
2147      - split exf_getffields.F into new exf_bulkformulae.F
2148      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2149      - updated adjoint/makefile and relevant verif. accordingly
2150    
2151    checkpoint50f_pre
2152     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2153          + change Evap over land. (update aim.5l_cs output)
2154     o added missing .cvsignores and made uniform across expts
2155     o changed configuration of tidal_basin_2d expt
2156     o added pkg/debug functions for tracing code in fatal crashes
2157     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2158     o new fn in pkg/monitor to stop model if solution grows too big
2159     o removed lots of single quotes from comments
2160    
2161    checkpoint50e_post
2162    o make KPP work with PTRACERS
2163     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2164       nearly a copy of kpp_transport_s
2165     - there is no analogue to SurfaceTendencyS, so I have to use
2166       gPtr(of the surface layer) instead
2167    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2168    checkpoint50e_pre
2169    
2170    checkpoint50d_post
2171    o change kpp output from multiple-record state files to single-record state
2172      files analogous to write_state.F
2173    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2174      analogous to the cg2d-related output.
2175    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2176      so that writing to internal file fn (with length 512) fails.
2177    checkpoint50d_pre
2178    
2179    checkpoint50c_post
2180    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2181    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2182    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2183    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2184    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2185    
2186    checkpoint50c_pre
2187    Merging from release1_p13:
2188    o bug fix for pkg/seaice dynamic solver
2189    o Added SEAICE_initialHEFF to pkg/seaice
2190    
2191    checkpoint50b_post
2192    o store u*,v* in gU,V instead of in guNm1,gvNm1
2193    o in order to put the momForcing out of the Adams-Bashforth:
2194      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2195      to timestep.F
2196    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2197    o re-generate output for highly sensitive test-exp:
2198       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2199    
2200    checkpoint50b_pre
2201    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2202    o corrected CPP option mismatch in exf_Bulk... functions for case
2203      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2204    
2205    checkpoint50a_post
2206    o Bug fix for merging between c50 and KPP.
2207      ikey was passed from thermodynamics to kpp_calc via
2208      common block rather than being recomputed in kpp_calc,
2209      in contradiction with new key itdkey.
2210      New key ikppkey created, and tamc.h headers updated.
2211    
2212    checkpoint50
2213    - 2nd step of merge with ecco-branch:
2214      merge changes in ecco-branch back into main trunk
2215    - bug fix in find_alpha
2216    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2217    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2218    - merged some sliced AD support routines
2219    
2220    checkpoint49
2221    merged from ecco-branch:
2222    o exf:
2223      - Enable initialisation of forcing fields to constant
2224        (runtime) values.
2225      - in exf_getffields.F
2226        Reduce i-/j-loop to interior domain, discarding overlaps.
2227        That also fixes wrong TAF-key computations for key_1, key_2
2228        with bulf formulae.
2229      - exf_init.F modify #ifdef for exf_init_evap
2230      - exf_getffieldrec.F, ctrl_getrec.F
2231        The following INT-usages are not safe:
2232          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2233          fldcount = int(fldsecs/fldperiod) + 1
2234        and were modified.
2235    o autodiff: checkpoint_lev...
2236      - updated storing for bulk formulae (some arrays were missing)
2237      - added state for seaice package
2238      - synchronized with main branch
2239    o DIVA:
2240      Modif.s in
2241      - the_main_loop.F
2242      - the_model_main.F
2243      and added cost_final_restore.F cost_final_store.F
2244      o With these changes, it is possible to fully separate
2245        the first forward run to compute the cost function (mdthe_main_loop)
2246        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2247        into separate model executions.
2248        This enables better tuning of DIVA to given queue sizes.
2249      o Loss of cost function value in consecutive DIVA runs is
2250        fixed by storing to 'costfinal' file.
2251      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2252        beginning/end of adjoint integration is accounted for.
2253      The current changes apply to TAF-1.4.26.
2254      TAF has one remaining bug, requiring one manual change
2255      (see MITgcm manual).
2256    o cal: synchronized between MAIN and ecco-branch
2257    
2258    checkpoint48i_post
2259    o Changes to restore differentiability of code w.r.t. previous tag
2260      (mostly adding new routines to make list and replacing
2261      pressure by totPhiHyd).
2262    o Updated and merged grdchk package
2263      - has both ADM and TLM checks
2264      - works for single- and multi-proc.
2265      - output cleaned
2266      - worked successfully for parallel DIVA
2267    o genmake:
2268      - Adding -platform=SP4
2269      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2270    o Modif. for DIVA:
2271      ctrl_unpack should not be called in intermediate DIVA interval.
2272      (similar thing would apply for active files such as
2273      tbar, sbar, psbar, which should not be reinitialised;
2274      only relevant for ecco-branch)
2275    
2276    checkpoint48h_post
2277    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2278    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2279    o Added SEAICE_initialHEFF to pkg/seaice
2280    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2281    
2282    checkpoint48g_post
2283    --- EOS:
2284    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2285      store total Potential in totPhyHyd for diagnostics & EOS.
2286    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2287    --- Pressure/geopotential gradient:
2288    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2289    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2290      ( changes results of global_ocean_pressure )
2291    o NLFS + z-coord.: add eta*Rho' contribution.
2292    o accurate phiHyd when using interface-W at the middle between 2 centers
2293     ( changes results of ideal_2D_oce )
2294    o includes r* 2nd term in potential gradient.
2295    
2296    checkpoint48f_post
2297    Merging from release1_p12:
2298    o Modifications for using pkg/exf with pkg/seaice
2299      - improved description of the various forcing configurations
2300      - added basic radiation bulk formulae to pkg/exf
2301      - units/sign fix for evap computation in exf_getffields.F
2302      - updated verification/global_with_exf/results/output.txt
2303    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2304      (SBO) core products, including oceanic mass, center-of-mass,
2305      angular, and bottom pressure (see pkg/sbo/README.sbo).
2306    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2307      to avoid negative values in shallow regions.
2308      - updated verification/natl_box/results/output.txt
2309      - updated verification/lab_sea/results/output.txt
2310    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2311    o Added useSingleCpuIO option (see PARAMS.h).
2312    o Updated useSingleCpuIO option in mdsio_writefield.F to
2313      work with multi-field files, e.g., for single-file pickup.
2314    o pkg/seaice:
2315      - bug fix in growth.F: QNET for no shortwave case
2316      - added HeffFile for specifying initial sea-ice thickness
2317      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2318    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2319      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2320    o pkg/seaice:
2321      - adjoint-friendly modifications
2322      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2323    
2324    checkpoint48e_post
2325    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2326    o dynamics: change definition of computational domain & adapt mom_fluxform
2327      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2328    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2329        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2330        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2331        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2332        inverted_barometer solid-body.cs-32x32x1
2333      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2334    
2335    checkpoint48d_post
2336    o in preparation for r*:
2337     a) use pre-computed gradient of hydrostatic potential:
2338        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2339     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2340        => affects results of glob_oce_pressure (different truncation error)  
2341      update output.txt of ideal_2D_oce & global_ocean_pressure
2342    
2343    checkpoint48d_pre
2344    o in preparation for r*:
2345      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2346      pass the 2 comp. of the grad. as arguments to momentum S/R.
2347      but for the moment, only used if it does not change the results.
2348    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2349    
2350    checkpoint48c_post
2351    Modifications in treatment of initial flux forcing controls
2352    to avoid extra storing of flux fields.
2353    
2354    checkpoint48c_pre
2355    o Added tidal_basin_2d experiment (currently 1D!)
2356    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2357    
2358    checkpoint48b_post
2359    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2360     (modification to pressure gradient not yet implemented)
2361    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2362      (for U & V) that are used for vertical advection of momentum.
2363    
2364    checkpoint48a_post
2365    o In preparation for r*, use temp. array to compute vertical transport
2366       in flux-form momentum pkg. => change results of few test-exp.
2367      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2368                        lab_sea, natl_box & plume_on_slope
2369    
2370    checkpoint48
2371    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2372    
2373    checkpoint47j_post
2374    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2375    o moved adexch from forward_step to addummy_in_stepping
2376    o added exch in ctrl_map_...
2377    o aveFreq.=0. at end of cost_final to avoid overwrite in
2378      reverse checkpointing loop
2379    o Yet more changes in gmredi:
2380      * adgmredi_calc_tensor
2381        avoiding all recomputation of gmredi_slope_limit
2382      * adgmredi_x/y/rtransport
2383        added flag for excessive storing to avoid recomp. of
2384        u/v/rtans, dTdx/y/z
2385        -> this is not really necessary and very memory-consuming
2386      * adgmredi_slope_psi:
2387        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2388      * gmredi_slope_limit
2389        re-activated full calculation of taperfct for case 'ac02'
2390    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2391    
2392    checkpoint47i_post
2393    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2394    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2395      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2396    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2397    o gmredi: fix few bugs.
2398    
2399    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2400    This will be a good checkpoint to plug into the ecco-branch.
2401    o few modif.'s to get latest version adjointed
2402      (mainly kick out code in ini_linear_phisurf)
2403    o modif's to run adjoint with exactConserv
2404    o case GM_BOLUS_ADVEC should be cleaned
2405      S/R gmredi_slope_psi should be cleaned
2406    o verification/carbon now has exactConserv=.TRUE.
2407    
2408    checkpoint47g_post
2409    o time-average AIM output: becomes independent from statvars time-average
2410      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2411    o After TAF bug fix:
2412      Tested adjoint of gmredi package.
2413      Tests were done with checkpoint47 rather than with latest
2414      checkpoint47f_post since the latter is broken for the adjoint
2415      verification/carbon/ contains both ADM and TLM gradient checks.
2416    Here they are, before they get changed/lost/stolen.
2417    Mostly modif.'s to fix numerical sensitivities.
2418    Gradient checks OK for
2419    - GM_taper_scheme:
2420      * clipping
2421      * ac02
2422      * linear
2423      * glw91
2424      * dm95
2425      * ldd97
2426    - GMREDI_OPTIONS:
2427      * GM_VISBECK_VARIABLE_K
2428      * GM_NON_UNITY_DIAGONAL
2429      * GM_EXTRA_DIAGONAL
2430      * GM_BOLUS_ADVEC
2431    in conjunction with data.gmredi parameters to be checked in
2432    in a few minutes under verification/carbon/code/
2433    
2434    checkpoint47f_post
2435    Merging from release1_p10:
2436    o modifications for using pkg/exf with pkg/seaice
2437      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2438        and SEAICE_EXTERNAL_FLUXES
2439      - pkg/exf CPP options EXF_READ_EVAP and
2440        EXF_NO_BULK_COMPUTATIONS
2441      - usage examples are Experiments 8 and 9 in
2442        verification/lab_sea/README
2443      - verification/lab_sea default experiment now uses
2444        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2445    
2446    checkpoint47e_post
2447    o created a tag prior to creating a branch
2448    
2449    checkpoint47d_post
2450    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2451      at the bottom boundary had an erroneous half slip boundary condition
2452    o added bottom drag and no slip boundary condition capabilities to
2453      oceanic pressure coordinates code
2454    o added new verification experiment global_ocean_pressure, this experiment is
2455      also described in the tutorial section of the manual
2456    checkpoint47d_pre
2457    
2458    checkpoint47c_post
2459    o Added a verification experiment for a global cubed-sphere ocean run
2460      -  verification/global_ocean.cubed32x32x30
2461      -  uses pkg/therm_seaice and pkg/bulk_forcing
2462    
2463    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2464    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2465      when using P-coordinate; only implemented for atmospheric config.
2466    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2467      NOTES: requires option NONLIN_FRSURF to be "#define".
2468    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2469    
2470    checkpoint47b_post
2471    Merging from release1_p9:
2472    o pkg/seaice
2473      - removed GOTO's and added taf directives
2474      - double precision constants to reduce the g77 (Linux)
2475        to F77 (SGI) differences reported in release1_p8
2476    o tools/genmake
2477      - added SGI options
2478    o verification/testscript
2479      - updated to that of checkpoint47a_post
2480    o verification/global_ocean.90x40x15/input/eedata
2481      - modified for SGI f77 compatibility
2482    o verification/lab_sea
2483      - added description of sea-ice model
2484      - added missing matlab routines
2485      - added test of thermodynamics parallelization
2486    
2487    checkpoint47a_post
2488    o new pkg: aim_v23
2489     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2490       for now, keep the same surface forcing as before.
2491     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2492     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2493     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2494    o add diagnostic of surface correction term in monitor output
2495    
2496    o bulk_force and therm_seaice
2497    - Two packages:  bulk_force (Bulk forcing)
2498      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2499    - Earlier integration from Stephaine Dutkiewicz
2500      and Patrick Heimbach.
2501    - Two ifdef statements for compile time,
2502       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2503    
2504    checkpoint47
2505    differentiable version of checkpoint46n_post
2506    o bug fix in quasihydrostaticterms
2507    o * "clean" adjoint code (in terms of extensive recomputations)
2508        can now be obtained for all GMREDI options (i.e. for
2509        - GM_VISBECK_VARIABLE_K
2510        - GM_NON_UNITY_DIAGONAL
2511        - GM_EXTRA_DIAGONAL
2512        - GM_BOLUS_ADVEC )
2513      * However, wrong gradient check problem remains unsolved.
2514      * New CPP options have been introduced for different
2515        tapering schemes
2516    o external_fields_load now part of differentiation list
2517    o pressure needs multiple storing;
2518      would be nice to have store_pressure at beginning or
2519      end of forward_step, e.g. by having phiHyd global (5-dim.)
2520      (NB: pressure is needed for certain cases in find_rho,
2521      which is also invoked through convective_adjustment).
2522    o recomputations in find_rho for cases
2523     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2524    o #define ATMOSPHERIC_LOADING should be differentiable
2525    o ini_forcing shifted to begining of initialise_varia
2526    o Incorporating QNVS line search routines into MITgcm
2527      (this is separate code, and therefore not under pkg)
2528      lsopt/, optim/
2529    o Updated verification/carbon/
2530      - #define GM_VISBECK_VARIABLE_K
2531      - GM_taper_scheme    = 'ldd97'    
2532    
2533    checkpoint46n_post
2534    Merging from release1_p8:
2535    o verification/natl_box:
2536      updating new external_fields_load routine
2537    o New package: pkg/seaice
2538      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2539      The sea-ice code is based on Hibler (1979-1980).
2540      Two sea-ice dynamic solvers, ADI and LSR, are included.
2541      In addition to computing prognostic sea-ice variables and diagnosing
2542      the forcing/external data fields that drive the ocean model,
2543      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2544      The implied surface heat flux is then stored in variable
2545      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2546      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2547      non-local transport term.  Because this call precedes model
2548      thermodynamics, temperature under sea-ice may not be "exactly" at
2549      the freezing point by the time theta is dumped or time-averaged.
2550      N.B.: fairly large differences in accuracy occur across
2551            different platforms/compilers; comparison between
2552            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2553            generated output gives:
2554       T           S           U           V
2555      C D M    c        m  s        m  s        m  s        m  s
2556      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2557      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2558      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2559    
2560      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2561    o GAD:
2562      - generated new common blocks to account for call of
2563        same gad routines with differing traceridentities
2564        (needed to modify tracerIdentity indices in GAD.h)
2565      - generated separate common blocks for case useCubedSphereExchange
2566        (Department of Futurology)
2567      - parameter lists to gmredi_?transport: added tracerIdentity
2568      - added new key indices to tamc.h
2569    o external_fields_load:
2570      - added this routine to TAF list
2571      - needed to make some common blocks global and additional storing
2572        along the same lines as exf package (checkpoint_lev?_directives.h)
2573    o exf:
2574      updated external forcing package
2575      - bug fixes carried over from ecco-branch
2576        (missing OBCS_OPTIONS.h in two routines)
2577      - enable easy to use "no forcing".
2578      - added exf I/O for atmospheric loading
2579      - added exf I/O for runoff data
2580      - transfered scaling between exf <-> MITgcm to exf namelist
2581    o Adding new verification experiment global_with_exf.
2582      This verification experiment is almost identical to the
2583      global_ocean.90x40x15 experiment, except that it uses
2584      the exf (and cal) package instead of the
2585      external_fields_load routine (cf README file).
2586    
2587    checkpoint46m_post
2588    o modified testscript to return -- when there are no lines of "%MON" output
2589    o added new flag "quasiHydrostatic" for QH mode
2590      and new routine quasihydrostaticterms()
2591    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2592      New routine: mom_u_coriolis_nh()
2593    o fixed sign of non-hydrostatic metric terms in u and v equations.
2594      Depend on correct sign of gravitySign.
2595    o added work.pc* to .cvsignore in aim directories using ifc
2596    o introduced flag for controllin non-hydrostatic metric terms
2597    o removed gravitySign from PARM04
2598    o switched to g77/ifc from pgf77 in aim experiments
2599    
2600    checkpoint46l_post
2601    o made convective adjustment work with pressure coordinates:
2602     - changed the direction of k-loop in convective_adjustment.F for the
2603       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2604     - adjusted the reference pressure k-index in convective_adjustment.F
2605     - adjusted the convection condition in convect.F (in analogy to
2606       calc_ivdc.F)
2607     - convective_adjustment no longer computes anything on the halos
2608     - removed the warnings about negative salinity from find_rho.F and
2609       find_alpha.F; instead the new routine look_for_neg_salinity, called
2610       at the beginning of find_rho, find_alpha, and find_beta, does a
2611       check of the entire slice, if CPP-option
2612       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2613    checkpoint46l_pre
2614    
2615    checkpoint46k_post
2616    o fixed the verification/global_ocean.90x40x15 experiment:
2617     - new bathymetry (the world according to A., JMC, and M.)
2618     - new initial fields and forcing fields (*.bin files)
2619     - new POLY3.COEFFS (for the next release one should switch to a full
2620       equation of state: JMD95P or MDJWF)
2621     - fixed several errors and redundancies in the data file
2622     - experiment uses looped cells
2623     - added matlab directory with diagnostic scripts for plotting of output
2624    
2625    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2626     - read AIM physics parameters from a file (data.aimphys)
2627     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2628    
2629    checkpoint46j_post
2630    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2631    o move wVel computation at the end of the time step, in S/R integr_continuity
2632    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2633    o update timeave pkg for wVel diagnostic.
2634    checkpoint46j_pre
2635    
2636    checkpoint46i_post
2637    o Clean up AIM package (and keep the results unchanged):
2638      include CPP_OPTION and use IMPLICT NONE in all routines ;
2639      declare all the variables _RL ; use _d 0 for all numerical constants.
2640      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2641    
2642    checkpoint46h_post
2643    o cleaned up the use of rhoNil and rhoConst.
2644      - rhoNil should only appear in the LINEAR equation of state, everywhere
2645        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2646        and the dynamical equations are all divided by rhoConst
2647    o introduced new parameter rhoConstFresh, a reference density of fresh
2648      water, to remove the fresh water flux's dependence on rhoNil. The default
2649      value is 999.8 kg/m^3
2650    o cleanup up external_forcing.F and external_forcing_surf.F
2651      - can now be used by both OCEANIC and OCEANICP
2652    checkpoint46h_pre
2653    
2654     Added code to convert surface volume flux (fresh water) into
2655     a mass flux when using P coordinates in the ocean (OCEANICP).
2656     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2657    
2658    checkpoint46g_post
2659    o Include a new diagnostic variable phiHydLow for the ocean model
2660      - in z-coordinates, it is the bottom pressure anomaly
2661      - in p-coordinates, it is the sea surface elevation
2662      - in both cases, these variable have global drift, reflecting the mass
2663        drift in z-coordinates and the volume drift in p-coordinates
2664      - included time averaging for phiHydLow, be aware of the drift!
2665    o depth-dependent computation of Bo_surf for pressure coordinates
2666      in the ocean (buoyancyRelation='OCEANICP')
2667      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2668        Theta, Salinity, and Pressure in the parameter list. This routine is
2669        presently contained in find_rho.F. This routine does not give the
2670        correct density for 'POLY3', which would be a z-dependent reference
2671        density.
2672    o cleaned up find_rho
2673      - removed obsolete 'eqn' from the parameter list.
2674    o added two new verification experiments: gop and goz
2675      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2676    checkpoint46g_pre
2677    
2678    checkpoint46f_post
2679    o Enable tangent linear (forward mode) gradient checks:
2680      - extended active file handling to g_... files
2681      - added TANGENT_SIMULATION to theSimulationMode
2682      - extended grdchk package accordingly
2683    o added tangent linear setup in verification/carbon/code_ftl
2684    o added adjoint setup in verification/front_relax/code_ad
2685    
2686    checkpoint46e_post
2687    o Added new equation of state -> MDJWF
2688      - EOS of McDougall et al., 2002, JAOT, submitted
2689      - caveat: the equation of state is only valid for a smaller (more
2690        realistic?) range of values than JMD95P/Z and UNESCO
2691      - added masks to the calculation of pressure in store_pressure
2692      - added more check values for density in check_eos (ini_eos.F), some of
2693        the old check values are out of the range of the MDJWF-eos, so don't
2694        expect perfect matches for those
2695    checkpoint46e_pre
2696    
2697    checkpoint46d_post
2698    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2699      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2700      case of pressure coordinates. eosType='JMD95Z' in
2701      combination with buoyancyRelation='OCEANICP' now causes an error.
2702    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2703      in find_alpha/beta.
2704    checkpoint46d_pre
2705    
2706    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2707      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2708    
2709    checkpoint46c_post
2710    o Changes necessary for ocean in p-coordinates
2711     -  Added new buoyancy relation = 'OCEANICP'
2712     -  Added new parameters = gravitySign (this used to be contained inside
2713        the factor dRdZ which I added when we first switched to R coordinates).
2714     X GM/Redi is not compatible (yet)
2715     X bottom drag and no-slip need to be debugged.
2716    checkpoint46c_pre
2717    
2718    checkpoint46b_post
2719    o Added new equation of state -> JMD95Z and JMD95P
2720      - EOS of Jackett and McDougall, 1995, JAOT
2721      - moved all EOS parameters into EOS.h
2722      - new routines ini_eos.F, store_pressure.F
2723    o Added UNESCO EOS, but not recommended because it requires
2724      in-situ temperature (see JMD95)
2725    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2726      unesco.f to be used with POLY3
2727    checkpoint46b_pre
2728    
2729    checkpoint46a_post
2730    o Added (atmospheric) pressure loading
2731      - new field in FFIELDS.h, etc...
2732      - new cpp flag ATMOSPHERIC_LOADING
2733    o Changed hFacC to _hFacC in calc_phi_hyd.F
2734    o Added SHORTWAVE_HEATING to some files for consistency
2735    checkpoint46a_pre
2736    
2737    checkpoint46
2738    further merges from release1_p5
2739    o new ctrl package
2740      - adopted from ECCO environment to enable optimization
2741      - added Eliassen Palm fluxes to controls
2742    o added Eliassen Palm flux controls to gradient check package
2743    o cost package
2744      - Compatible with new ctrl package
2745      - added Eliassen Palm cost hooks
2746      - modif's of existing cost functions
2747    o Adjoint-related bug fixes in kpp:
2748      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2749      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2750    o autodiff package
2751      - flow directives:
2752        + new for S/R do_the_model_io
2753        + enhanced for S/R checkpoint
2754        + new gmredi.flow
2755      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2756        disable adcommon.h/g_common.h by default.
2757      - fixed problem for adjoint of global_max
2758    o modified verification/carbon/
2759    o New setup for adjoint of global_ocean
2760    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2761    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2762    o incorporated hooks for sponge layer code (external_forcing.F)
2763    
2764    checkpoint45d_post
2765    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2766    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2767      (affects plume_on_slope "cg2d" output)
2768    o add new parameter deltaTfreesurf for free-surface time stepping
2769    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2770    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2771    o change phiMin in exp1 (to agree with documentation)
2772    o add new flags:
2773     - T,S forcing inside/outside Adams-Bashforth
2774     - turn off temp,salt advection and/or forcing
2775     - for each tracer, define internal flag for multiDimAdvection & A-B
2776    o monitor: change definition of KE to check conservation of Energy
2777    
2778    checkpoint45c_post
2779    o Removed f90 comments ("!")
2780    o Modified initialisations to enable exf package for MITgcm
2781      (without invoking ECCO_PACKAGE).
2782    o modifications to gradient check package (Martin Losch)
2783      - enable centered differences
2784      - modified format of standard output
2785    
2786    checkpoint45b_post
2787    o cleaned exchange calls in cg2d
2788    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2789    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2790      to configure barotropic setup (Martin Losch)
2791    o moved some initialisations within bi,bj loop in dynamics
2792      (TAF flow dependency)
2793    o in initialise_varia, moved call packages_init_variables
2794      before convective_adjustment_init
2795      (corresponding adjustment of TAF tape initialisation).
2796    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2797    
2798    checkpoint45a_post
2799    o compute Rho over the whole domain (extend iMin,jMin indices)
2800    o specific exchange for X-slice domain (case Ny=1)
2801    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2802    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2803    
2804    checkpoint44h_post = checkpoint45
2805    o Fix to restore differentiability:
2806      place at which packages_init_variables is called in
2807      initialise_varia is crucial for reverse control flow.
2808    o modifications in GMRedi to enable stable adjoint
2809      (corresponding modif's in thermodynamics, dynamics)
2810    o added missing hook for sponge layer code in external_forcing
2811    o modified test cost functions
2812    o storing in gad_advection (plus removal of write(0,*)!
2813    o missing headers TR1.h added in convective_adjustment routines
2814    o errorMessageUnit set non-equal zero in eeboot
2815      (conflict on some platforms, e.g. IBM SP3)
2816    o modified carbon verif.
2817    
2818    checkpoint44h_pre
2819    o vertical grid option: allow to put the Interface at the middle between
2820      2 cell-centers ; replace delZ in pkg/kpp by drF.
2821    o GM Advective form: Tracers are advected using the residual transport (=
2822      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2823    
2824  checkpoint44g_post  checkpoint44g_post
2825  o fix surface correction term in multiDimAdvection (affects plume_on_slope  o fix surface correction term in multiDimAdvection (affects plume_on_slope
2826    results) ; ifdef missing in thermodynamics.F    results) ; ifdef missing in thermodynamics.F

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