/[MITgcm]/MITgcm/doc/tag-index
ViewVC logotype

Diff of /MITgcm/doc/tag-index

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph | View Patch Patch

revision 1.32 by adcroft, Thu Nov 30 16:51:40 2000 UTC revision 1.788 by mlosch, Mon Apr 16 22:43:12 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice:
8      - remove seaice_exch and seaice_exch_uv
9      - remove superfluous exchange of theta
10      - add myThid to seaice_budget_ocean/ice
11    
12    checkpoint58y_post
13    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
14      vertical diffusivity, similar to that in MOM4; turned on using
15      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
16      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
17    o Added capability for 3D specification of background vertical diffusion
18      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
19      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
20      "data" file that contains the 3D vertical diffusivity coefficients.
21    o ice dynamics (pkg/seaice) with thsice thermodynamics:
22      - add code within pkg thsice to advect & diffuse sea-ice fields
23      similar to (and will replace) what has been added in  seaice_advdiff.F,
24      but: - conserving Mass, Heat & Salt.
25           - better when using non-linear advection scheme (not yet fully tested)
26           - can also be used in atmospheric set-up (for now, only the diffusion).
27    
28    checkpoint58x_post
29    o IO option for global-file compact format:
30      - add options when generating topology (utils/exch2/matlab-topology-generator)
31      - add I/O capability (pkg/mdsio).
32      - adapt utils/matlab/rdmds.m to read this format.
33      for now long-line format not yet supported by pkg/mdsio (& exch2).
34    o shelfice: add a few diagnostics
35    
36    checkpoint58w_post
37    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
38      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
39      (and replace horiVertRatio in NH code).
40      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
41                         and tutorial_plume_on_slope (sensitive to truncation)
42    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
43      directly to drive seaice model (C-grid only)
44    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
45     - reintroduce computation of wind from stress,
46     - compute tau (in exf_bulkformulae.F) from windstress averaged to
47       mass points to avoid tau = 0
48     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
49    o rdmnc.m: make it work with "global" files created with gluemnc
50    o rdmnc.m : some improvements in dealing with singleton dimension
51      (tested on all testreport mnc output files).
52    o genmake2: disable pkg/profiles if netcdf test fails.
53    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
54    o move call to cal_readparms up to make calendar parameters/variable available
55      to all packages
56    
57    checkpoint58v_post
58    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
59      useDynP_inEos_Zc tested.
60    o pkg/exf: changes to properly interpolate/mask/scale initial fields
61    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
62      and portions thereof.  See read_cs.txt for description and examples.
63    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
64      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
65      following the great-circle arc between those 2 points.
66    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
67      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
68    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
69     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
70     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
71     - still needs work (not working with some options ; efficiency to improve)
72       and serious testing.
73     - use this scheme for temperature & salinity in 2 advection test exp.:
74       advect_xy & advect_xz, respectively.
75    
76    checkpoint58u_post
77    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
78    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
79    o testreport: add option "-skipdir" to skip some test.
80    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
81      momentum calculation.
82    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
83    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
84      remove checkpoint.F and the_correction_step.F (no longer used);
85      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
86    o add option (linFSConserveTr) to correct for tracer source/sink due to
87      Linear Free surface
88    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
89    o pkg/thsice: fix reading mnc-pickups
90    
91    checkpoint58t_post
92    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
93    o pkg/mdsio:
94     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
95       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
96       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
97     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
98     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
99       either MDS_READ_FIELD or MDS_WRITE_FIELD )
100     - new S/R (to replace MDSWRITEMETA), which allows to write more
101       informations (variable names, time ...) to meta files.
102     - modify rdmds.m to give back the meta file content.
103    o pkg/diagnostics: change vertical interpolation to be safer, and more
104       flexible (define p-levels to interpolate to in data.diagnostics);
105      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
106       diagnostic pointer.
107    o pkg/seaice: more cleaning up of seaice_growth, added many comments
108    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
109    o fix multi-category seaice:
110     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
111       SEAICE_MULTICATEGORY
112     - fix short wave heat flux
113    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
114       and allow to use EVP solver. Change forward lab_sea: test both EVP
115       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
116    o Initial check-in of lab_sea adjoint
117      (very similar to natl_box_adjoint/code_seaice)
118      * used C-grid and EVP solver
119      * used KPP, GM/Redi
120      * uses inAdExact=.TRUE.
121      * gradient checks fail for both ADM and TLM
122        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
123        f.d. gradients actually seem more problematic than ADM, TLM gradients;
124        issue is related to forward mismatch between g77 an ifort
125    o pkg/seaice: overhaul of thermodynamics
126     - growth.F and groatb.F are replaced by new routine seaice_growth.F
127     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
128     - move a few global fields out of SEAICE.h into seaice_growth.F and
129       make them 2D (FICE/QNETO/ ...)
130     - remove FO (it is the same as QNETO)
131     - introduce a few local fields to avoid modifying external fields such
132       as atemp, etc.
133    
134    checkpoint58s_post
135    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
136      changed exf_set_gen.F so that
137        genperiod=0 means input file is one time-constant field and
138        genperiod=-12 means input file contains 12 monthly means
139    o CG2D: use pre-computed solver main-diagonal (stored in common block);
140      this affects truncation error ; generate new output file for exp. which
141      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
142        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
143        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
144        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
145        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
146        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
147    o start implementation of deep-atmosphere and anelastic formulation
148    o verification: remove 2nd copy of input files and use script "prepare_run"
149      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
150    o mom_common/vecinv/fluxform: fix a few initialisation isssues
151    o profiles: fix for multithreaded case
152    
153    o diagnostics: rename few diags:
154      s/'PRESSURE'/'RCENTER '/g
155      s/'TICE    '/'oceFreez'/g
156      s/'TAUX    '/'oceTAUX '/g
157      s/'TAUY    '/'oceTAUY '/g
158      s/'SWFLUX  '/'oceQsw  '/g
159      s/DIFx/DFxE/g
160      s/DIFy/DFyE/g
161      and add few ocean-forcing diagnostics:
162      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
163    o modifications to pkg/seaice/growth.F and budget.F, which change results of
164      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
165      as actual snow thickness.  It now refers everywhere to effective snow
166      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
167    
168    checkpoint58r_post
169    o modifications to pkg/seaice/growth.F, which change results of
170      lab_sea experiment: fixes pertain to melting snow over open water, to
171      masking EVAP under sea ice, and to using the correct AREA variable for
172      computations of EVAP, PRECIP, HSNOW, and GHEFF
173    o add ability to read bathy, salt, and theta using MNC (off by def)
174    o add flooding algorithm and advection of HSNOW for pkg/seaice;
175      both are turned off by default and do no change any results
176    o seaice advection with pkg/thsice: a step toward the use of non-linear
177      advection scheme, but #ifdef or commented out for now (requires more EXCH).
178    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
179      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
180      in natl_box (affects results @ truncation level: update output.txt)
181    o multi-threading and IO:
182      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
183      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
184        (needed to work with SingleCpuIO): tested in all verif. exp.
185    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
186      affects the results (but none of the verification test uses this scheme).
187    o Adding some pkg/diagnostics capability to pkg/seaice
188      (will certainly be subject to changes)
189    o ctrl: adding new control variables:
190      lwflux, lwdown, evap, snowprecip, apressure, runoff
191    
192    checkpoint58q_post
193    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
194      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
195      high_res_cube configuration by 4% on Columbia.
196    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
197      add (in global_with_exf/code) a version of EXF_INTERP_READ without
198      dynamical allocation (seems to work in multi-threaded).
199    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
200      single CPU io) so that TAF does not have to see EESUPPORT.h
201    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
202    
203    checkpoint58p_post
204    o obcs: stop if obcs is used with useCDscheme = .true.
205    o shelfice:
206     - fix a sign error so that no slip at shelfice interface works
207     - remove stop for combination non-hydrostatic code and shelfice. That does
208       not mean, that the results are correct, but at least they are numerically
209       stable
210    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
211    o added adjoint exch routined for all exch*3d* routines
212      and updated flow directives
213    
214    checkpoint58o_post
215    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
216      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
217    o change controling S/R for writing pickup file (new S/R do_write_pickup)
218      and clean-up reading/writing of pickup files.
219    o fix local version of read/write pickup (NH part) in rotating_tank/code
220    o simplify EXCH interface:
221     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
222     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
223    o added the regrid package
224    o shelfice:
225     - add a simple boundary layer scheme to reduce noise
226     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
227    
228    checkpoint58n_post
229    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
230       local variable (not in common block).
231    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
232      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
233      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
234        to work with SingleCpuIO.
235    o add "_d 0" to real constant of pkg/cfc subroutines ;
236       update exp. cfc_exemple & tutorial_cfc_offline output files.
237    o multi-threading and IO:
238      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
239        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
240      - barrier before and after reading.
241      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
242      - avoid using MDS_WRITELOCAL for LAND pkg output.
243      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
244        common-block variables ; Allows multi-threading with master-thread IO.
245    o change default MAX_NO_THREADS from 32 to 4 ;
246      and stop cleanly when MAX_NO_THREADS is too small.
247    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
248    
249    checkpoint58m_post
250    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
251       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
252    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
253       keep global_ocean.90x40x15 (for AD testing) with former secondary test
254       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
255    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
256        add MITgcm_tutorials (= code + all the tutorials)
257    o ecco, option to compute cost for total ssh (mean+anom)
258    o consistent with addition of ptracer and ssh in pkg/profiles
259    o profiles: adding ptracer and ssh
260    o testreport: change multi-test output-file name
261      (from output.txt.{name} to output.{name}.txt)
262    o profiles: now ok for mutli-tiles case
263    o seaice: add 4 parameters for different advection schemes for area,
264      (effective) seaice thickness, enthalphy, and snow height. Their default
265      is the standard parameter SEAICEadvScheme
266    o calc_gw:
267     - add cosFacU in zonal viscous flux (harmonic.visc.).
268     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
269       of tutorial_plume_on_slope.
270    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
271    o calc_gw: true flux-form, account for horizontal grid spacing.
272      update rotating_tank results, but not plume_on_slope (affected at
273      truncation level, 11 digits).
274    
275    checkpoint58l_post
276    o calc_gw:
277     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
278     - remove side-drag for now (need to fix it); update plume_on_slope results.
279     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
280    o commit code to make SST/SSS weights spatially variable
281      (based on either variable in-situ or variable initial T/S weights)
282    o pkg/ecco:
283      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
284        now based on horizontally varying weights wthetaLev, wsaltLev
285      * cost_averagesflags now returns year indices in addition to day, month
286      * sflux balance is performed on annual basis
287        (sflxumm, sfluxmm2, bal_sfluxmm)
288      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
289        including separate counting and multipliers
290    o pkg/rbcs
291      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
292    
293    checkpoint58k_post
294    o testreport:
295     - always build in dir. "build" (if not there, mkdir build instead of building
296       & running in input)
297     - run in dir run (if it exists), in build otherwise.
298     - call prepare_run (if input/prepare_run exists)
299     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
300    o pkg/exf modifications to interpolation and rotation routines for more
301       reasonable treatment of North Pole singularity: for tracers North Pole
302       value is set to northernmost zonal-mean value, for zonal velocity it is
303       set to zero, and for meridional velocity it is set to northernmost value.
304    o pkg/exf/exf_check_range.F
305     - add tile index to diagnostics and move stop statement to the very
306       end of the routine.
307    o pkg/diagnostics: (diagnostics_main_init.F)
308      define title of isomorphic variables according to the current config.
309    o pkg/thsice with pkg/seaice dynamics:
310    - fix domain of computation (interior only, required for exf) and do exchanges
311    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
312    o towards a standard way of dealing with multi-threading in MONITOR
313      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
314    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
315       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
316    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
317    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
318    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
319       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
320    o tracer advection:
321     - clean-up and simplify calc_common_factors.F
322     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
323       advection subroutine (but still not used within DST advection S/R)
324    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
325    
326    checkpoint58j_post
327    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
328      from file (collects calls previously in FORWARD_STEP)
329    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
330    o adjoint store dir. adjusted accordingly
331    o genmake2
332      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
333    
334    checkpoint58i_post
335    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
336      on wind stress (SEAICEstressFactor defaults to 1.)
337    o Total number of Timers is finite (<=40): comment out 2 non-essential one
338      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
339    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
340      on CS-grid: no longer loosing mass.
341    o exf & curvilinear-grid: no longer modify longitude xC & xG.
342    o pkg/ggl90: fix sloppy output and fix a bug
343    o pkg/seaice: added SEAICEuseEVPpickup parameter
344      - Set to false in order to start EVP solver with
345        non-EVP pickup files when using SEAICEuseEVP
346      - fix sign error in diffusion in seaice_calc_rhs
347    
348    checkpoint58h_post
349    * Modifications for bottom topography control
350      o replace hFacC by _hFacC at various places
351      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
352      o add non-self-adjoint cg2d_nsa
353      o update autodiff support routines
354      o re-initialise hfac after ctrl_depth_ini
355      o works for 5x5 box, doesnt work for global_ocean.90x40x15
356    * Adding verification for 5x5 box (4-layer) bottom topography control
357    
358    checkpoint58g_post
359    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
360       used for mean seasonal cycle, mean diurnal cycle); add an example
361       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
362    o pkg/ggl90:
363      - add parameter (minimum surface kinetic energy)
364      - fix bug (avoiding division by zero)
365    o couple pkg/thsice to pkg/seaice:
366      - modify advection in seaice to accomodate new scalar fields to be advected
367      - only muliDimAdection scheme work with seaice/thsice
368      - mapping of thsice-variables to seaice-variables, back and forth
369      - does not break the verification experiments, but does not give the
370        desired results either
371    o pkg/seaice
372      - make (default) second order advection a bit less confusing?
373    
374    checkpoint58f_post
375    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
376      to pkg/seaice):
377      - new routines thsice_map_exf and thsice_get_exf provide the interface
378      - add an additional formal parameter to thsice_solve4temp
379    o pkg/exf:
380      - add new fields wspeed, snowprecip (to be able to couple to thsice)
381      - correct Stefan-Boltzmann constant
382      - new parameter for longwave surface emittance
383      - separate some stuff from exf_bulkformulae into new routines  
384        exf_radiation, exf_wind
385      - add new parameters and constants: longwave emissivity for ocean, ice
386        and snow, evaporation parameters over ice
387      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
388        either wind from stress or stress from wind
389    o pkg/thSIce:
390    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
391    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
392       and THSICE_CALC_THICKN
393    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
394    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
395      to make debugging easier.
396    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
397    o pkg/bulk_force:
398      - clean-up comments and parameters ;
399      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
400    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
401      generate new output for test-experiment: aim.5l_cs.thSI
402    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
403      testreport accordingly
404    
405    checkpoint58e_post
406    o SEAICE_CGRID adjoint done
407    o R_STAR adjoint implemented.
408      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
409      * need to sort out init. of h0facc, etc.
410    o Make pkg/profile fully independent of ecco,cost, etc. stuff
411      to be able to use it in pure forward.
412    
413    checkpoint58d_post
414    o upgrade simple test-experiment to tutorial example:
415     step.1: duplicate the experiment and (step.2) will remove the old copy.
416      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
417      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
418      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
419      tutorial_global_oce_biogeo    <- copy of dic_example
420      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
421      tutorial_plume_on_slope       <- copy of plume_on_slope
422      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
423      tutorial_global_oce_optim     <- empty for now (David ?)
424      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
425     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
426    o correct a sign problem in cost_scat.F
427    o obcs and ptracers: fix boundary conditions for advections schemes
428      with larger stencil
429    o thsice adjoint: start
430    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
431      completeness
432    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
433      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
434    o ptracers adjoint:
435      * avoid extensive recomputatations
436      * fix missing re-init. of gptr (missed by TAF)
437    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
438      me to turn off the excessive output to STDOUT that this package produces
439    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
440      and add those terms in Vector-Invariant formulation.
441    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
442      if the control period (xx_hfluxperiod etc) is 0
443    o in profiles pkg, clean routines and fix details
444    o in ecco pkg, reading ssh data:
445      fix problem in case the model does not start at iter0=0
446    o fix mnc-pickup/restart for ptracers
447    o new package prifiles:
448      code to compute profile-based cost by Gael Forget
449      (modifs in ecco, ctrl, autodiff)
450    o Benign bug fix in initialization (spotted by M. Mazloff) of
451      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
452    
453    checkpoint58c_post
454    o adjoint: finish NLFS adjoint and provide reference output in
455      verification/global_ocean.90x40x15/results_ad_nlfs
456    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
457      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
458      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
459      with SEAICE_CGRID defined.
460    o move calendarDumps from "data" to "data.cal" and clean-up the code
461      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
462    o add useEXF & useCAL flags (for now, set in hard-coded way)
463    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
464      (were missing in NH mode, and wrong in quasihydrostatic mode).
465      waiting for Chris updated version of calc_gw to add those CALLs.
466    o fix bug in quasihydrostatic S/R ;
467      add a test for this option: global_ocean.90x40x15.qshyd
468    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
469      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
470    o add on/off flag useOffLine for package OFFLINE
471    o seaice:
472      - modify advection so that it works also on the C-grid
473      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
474        problem in multi-tile runs with C-grid
475      - add flags for clipping ice velocities and/or masking solver forcing
476      - fix drag (ocean on ice) formulation and a bug that caused noise in the
477        C-grid solver
478      - added a few comments to seaice_diffusion.F
479      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
480        are now exclusive)
481      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
482        required re-ordering the code a little:
483       + make DAIRN global variable (defined in SEAICE)
484       + move computation of the viscosities eta and zeta into a new separate
485         routine (because I need to recompute them in seaice_ocean_stress.F)
486    
487    checkpoint58b_post
488    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
489      update output.txt of exp. aim.5l_cs.thSI
490    o various mnc cleanups and improvements:
491      + shrink lookup tables by factor of ~4
492      + better error reporting when running out of lookup space
493      + able to handle longer path/file names (up to 500 chars)
494    o adjoint:
495      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
496      - TBD: "hidden" mom_vecinv recomp. in dynamics
497    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
498     (allow to differentiate between forcing components using new integer flags:
499      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
500     and add new flag to put Dissipation tendency out of Adams-Bashforth.
501    o ecco
502      - enable trend removal from SSH anomaly obs.
503    o adjoint
504      - a fix for PmEpR when #undef EXACT_CONSERV
505      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
506      - try to fix "hidden" recomp. in forward_step for NLFS
507        (NLFS seems broken sometimes after I checked it in)
508    o seaice:
509     - add c-grid version of the dynamic solver:
510       + three new routines that are the c-grid substitute lsr, dynsolver
511         and ostres
512       + put a few fields that were local to dynsolver into global common
513         blocks, so that I can move the computation of stresses etc into
514         seaice_lsr (saves coding but may break the adjoint).
515     - replace more hardwired parameters by runtime parameters
516     - add ice masks that mask the rhs of the implicit solvers where there
517       is no ice (commented out in seaice_dynsolver, because i am not sure
518       if this works properly), eventually this should replace the clipping
519       of ice velocities in seaice_dynsolver to +/-40cm/s.
520    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
521      include it only where its needed
522    o move balancing of fluxes before the call of external_forcing_surf
523    o seaice:
524      - correct units of turning angles (now they are really in degrees)
525      - move computation of GWATX/Y out of main routine into dynsolver
526      - initialize GWATX/Y in seaice_init
527    o Apply mask on Fresh-Water flux (needed for SSH forcing).
528      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
529    o seaice: add runtime flags for turning angles (default to zero)
530    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
531      and trend from exf forcing and ctrl control adjustments
532    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
533      (since checkpoint57x_post)
534    o change the default rotation period to 86164.s = the Earth rotation
535    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
536      and based on a reference stratification. Tested within hs94.cs-32x32x5.
537    o seaice advection: add code for choosing between the default (2nd order
538      central differences) and multiDim advection schemes provided by
539      pkg/generic_advdiff
540    o seaice:
541      - removed all references to SEAICE_GRID.h fields from
542        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
543        (cubed-sphere configuration will change a little)
544      - grid computations in seaice_init are obsolete now.
545      - cleaned up code a little so that is easier to read (hopefully).
546      - added new (better?) discretizations of default advection and diffusion
547        (turn on with SEAICEuseFluxForm)
548      - replace 1 in 3d global fields by kSurface in growth.F
549      
550    checkpoint58a_post
551    o seaice:
552      - bug fix in advect.F
553    o shelfice:
554      - separate shelfice load anomaly from pload (breaks with time
555        dependent forcing), => introduce constant field shelficeLoadAnomaly.
556        Its default is 0., but it may be computed more cleverly from (unknown)
557        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
558        done offline. A good approximation of the pressure load anomaly is
559        necessary to avoid large initial adjustment processes underneath
560        deep-reaching shelfice.
561      - small fix in ISOMIP shelfice_thermodynamics
562      - add more sophisticated thermodynamics of Hellmer (1989), this is
563        now the default
564      - give a few constants more intuitive names
565    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
566      if bulk formulae are used in long integration (especially EmPmR). Turn
567      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
568      if balancePrintMean, the imbalance that is substracted is printed to
569      STDOUT.
570    o fix bug (typo) in obcs_apply_eta.F
571    o add a new package shelfice which enables us to model the circulation
572      underneath shelf-ice with draughts of hundreds of meters.
573     - works
574     - to do: + include improved thermodynamics
575              + check whether kSurfC (from model/inc/SURFACE.h) can be used
576                instead of new field kTopC
577              + can we use topoFile, Ro_surf and existing code in ini_depth.F
578                instead of new field R_shelfIce and new code in ini_depth.F
579                and ini_mask_etc.F?
580              + adjust vertical mixing schemes?
581    o seaice pkg:
582     - add a cpp-flag to include a simple formula for a salinity dependent
583       freezing point of sea water at the surface
584     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
585       meridional stresses are now different (and hopefully correct)
586    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
587       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
588       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
589    o pkg/diagnostics: add options and parameters for regional-statistics
590       diagnostics ; define regions by reading a region-mask from a file
591       (might add other options later)
592    o pkg/bulk_force:
593     - add option and parameters to use AIM surface-flux formulae.
594     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
595       others forcing fields (defined in PARM05, parameter file "data") are loaded
596       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
597     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
598     - use the right EXCH call for uwind,vwind (to work on CS-grid).
599     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
600       and parameters (note: calcWindStress replaces .NOT.readwindstress).
601     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
602    
603    checkpoint58
604    o add "--embed-source" option to genmake2 which, when the supporting
605      tools can be compiled (as determined by genmake2) will turn on the
606      embed_files package which then embeds the entire MITgcm source code
607      (*.[fFhc] + Makefile) used for the build within the executable
608      - requested by CNH but off by default
609      - adds a paltry <9MB to the mitgcmuv executable in most cases
610      - only writes the output when useEMBEDSRC in eedata is true
611    o clean up 3-dim. relaxation codes:
612      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
613      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
614      * Thanks to Tom Haine for testing!
615    
616    checkpoint57z_post
617    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
618      affects output (@ truncation level) of exp. plume_on_slope ; updated.
619    o fix the pickup behavior for obcs in combination with ptracers
620    o fix a bug in ptracers_external_fields_load
621    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
622      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
623    o transfered surface NH pressure to eta field (if exactConserv).
624    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
625         and update lab_sea output.txt file.
626    o completing 3-dim. relaxation code: additional term
627         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
628      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
629      * At compile time, in "EXF_OPTIONS.h" set
630          #define  ALLOW_CLIMTEMP_RELAXATION
631          #define  ALLOW_CLIMSALT_RELAXATION
632      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
633          tauThetaClimRelax3Dim = 15552000.0,
634          tauSaltClimRelax3Dim  = 15552000.0,
635      * 3 cases:
636          1) Use a constant-in-time 3-dim. field
637          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
638          3) Real-time relax. to time-evolving prescribed field
639    o Adding Laplacian-type smoothness constraint on
640      initial and boundary (forcing) controls (ic, bc)
641      * enable at compile-time via
642        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
643      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
644      * Absolute scale somewhat unclear so far
645      * no area weighting was included since no other cost term does so far
646    
647    checkpoint57y_post
648    First step for a NLFS adjoint
649    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
650    o new init. routines for calc_r_star, calc_surf_dr
651    o still need to deal with ini_masks_etc
652    o testreport seemed happy
653    checkpoint57y_pre
654    
655    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
656    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
657    o add new offset feature to offline pkg (plus minor cleanup)
658    o cfc fixes for final year of integration
659    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
660      be in GCHEM_OPTIONS).
661    
662    checkpoint57x_post
663    o fix testreport Pb in multiple test experiment.
664    o cleanup our namelist syntax in verification:
665      - make it more F95 standards compliant (some work still needed)
666      - allows the vast majority of our tests to work with gfortran
667    o Non-Hydrostatic:
668     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
669     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
670    o Allow to apply AB on T,S rather than on AB(gT,gS):
671     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
672     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
673       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
674     - need a "clever" read_pickup to restart from the other AB formulation
675    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
676    o remove some unused variables (reduces number of compiler warnings)
677    o adjoint
678      * Disable useVariableViscosity for adjoint for time being
679        (there are a number of extensive recomputations)
680      * Initialize certain variables needed for adjoint
681    
682    checkpoint57w_post
683    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
684                 fix the singleCpuIO RS version of MDSWRITEFIELD
685       and add a WARNING if using globalFiles=T with multi-processors.
686    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
687      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
688    o tracer advection scheme:
689      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
690       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
691       was not very convenient).
692      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
693       (further tests needed for the implicit DST & Flux-Limiter schemes).
694    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
695      and sRef for convenience, handy, when you want to initialize
696      ptracers in a large domain with a constant non-zero value. Also,
697      untangle ptracers_init.F a little.
698    
699    checkpoint57v_post
700    o change dome exp. to use variable viscosity in side-drag terms.
701    o remove all the files from the cfc_offline test since they are now
702      incorporated into tutorial_cfc_offline which has been producing
703      identical results for a few days of testing
704    o add new parameter: sideDragFactor to enable half-slip-side BC
705      and change side-drag S/R to use viscosity from mom_calc_visc
706      (can switch back by setting sideDragFactor=0.); affects results at
707      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
708       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
709    o vorticity & strain are now computed without masking, to account for
710      no-slip-side BC in variable viscosity calculation ; mask is applied
711      anyway later on, before computing advection/coriolis terms.
712    o modify exp4 to test new obcs support for reading from external files
713      and for passive tracers
714    o fix behavior of ptracers_monitor when monitor output is written to a
715      netcdf-file; still not independent of monitor.F (writes in the same
716      file).
717    o change default value of tRef (put a uniform, meaningful value for ocean
718      & atmos) and initialize sRef (was missing, as Martin mentioned).
719    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
720      to be proportional to enstrophy dissipation length.  Thus,
721       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
722      This is now consistent with Smagorinsky and with the manual.
723    
724    checkpoint57u_post
725    o OBCS and PTRACERS: add open boundary support for passive tracers
726      - either use homogenous (pseudo) v.Neumann conditions or prescribe
727        OB-values from file; this is not different from the way theta and salinity
728        are treated
729      - however, Orlanski-radiation conditions are not supported, and the model
730        will stop if you use pTracers and Orlanski at the same time.
731      - beefed up the rountine obcs_external_fields_load: now only those open
732        boundary values are overwritten with values from files for which there
733        are really files, otherwise the OB-fields remain untouched. This makes
734        it possible to use different OBs at different ends of the domain (as
735        with EXF)
736    o reduce number of exch calls in shap_filt (s2).
737    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
738      truncation level) 4/5 MLAdjust test results (11&12 digits match).
739    
740    checkpoint57t_post
741    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
742    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
743      same truncation, independent of the face number: affects affects several
744      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
745    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
746      note that biharmonic viscosity + no-slip was not tested in any experiment.
747    o fix bug in non-linear free-surf side-drag ; generate new output for
748      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
749    o make mnc honor the writeBinaryPrec flag for most kinds of output
750    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
751    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
752      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
753    o add brackets in multi-terms sum to get same truncation, independent of
754      the face number (manage to get exactly same value of gU,gV at the cs-edge)
755      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
756    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
757      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
758      a maximum grid-scale Reynolds number.  Also, changes all length calculations
759      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
760      Suggested values of viscosity parameters found in mom_calc_visc.
761      Many new viscosity diagnostics available.
762    
763    checkpoint57s_post
764    o Add clearing-house for viscosity calculations, mom_calc_visc and
765      correct numerous bugs in LeithD and Smagorinsky discretizations.  
766      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
767      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
768      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
769      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
770      The Strain-Tension form is now called with useStrainTensonVisc=.true.
771      ViscAhStrain and viscAhTension are now retired.
772    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
773    o In response to JMC's bug report, genmake2 now ignores any soft-links
774      that it finds in the *current* directory when searching for files.
775      Soft-links found in any other source directories will still work as
776      they did before.
777    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
778      a C routine to unlimit the stack size
779    o mnc-ify pkg/aim snapshot vars
780    o mnc-ify pkg/land as requested by Daniel
781    o various changes to mnc including:
782      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
783      - output can now be grouped so that all files within a group
784          change the ITER portion of their names in lock-step together
785      - can now read ("global") PER-FACE (in addition to PER-TILE) files
786          and works with both EXCH1 and EXCH2 (but needs more testing)
787      - writing works for all verification test cases w/ g77 on Linux
788    
789    checkpoint57r_post
790    o make MNC variable initialization happen earlier
791    o add diagnostics for (almost) each term of the momentum Eq.
792    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
793    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
794    o remove MINIMAL_TAVE_OUTPUT option ;
795      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
796    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
797      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
798    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
799    o add time-dependent SST, SSS control
800    o cost terms in ecco/ modularized (new cost_generic.F)
801    o cost_averages routines are modularized (new cost_averagesgeneric.F)
802    o new infrastructure for seaice model vs. obs misfits in seaice/
803      * driver from the_main_loop.F is seaice_cost_driver.F
804      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
805      * gradient check in Exp. 6a of natl_box_adjoint/
806    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
807      (see README file)
808    
809    checkpoint57q_post
810    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
811    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
812      - bug was reported by Jean-Michel and Ian Fenty
813    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
814      update exp. cpl_aim+ocn output.
815    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
816      Needed for high-res. runs with large global files
817      to be able to limit tapelev size
818    o Changed some tests for adjoint:
819      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
820      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
821      * global_ocean.90x40x15/ back to default 3-level checkpointing
822    o Modifications to enable scripted COMMON to MODULE conversion
823      * verification/OpenAD/code/ has necessary scripts and description;
824      * converts, compiles and runs successfully;
825    
826    checkpoint57p_post
827    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
828    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
829      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
830    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
831    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
832      (was already the case for dissipation with mom_vecinv,
833       and also the case for grad.PhiHyd when staggered-timeStep)
834      This will allow to put dissipation out-off the AB time-stepping.
835     Unfortunately, affects truncation error. Update output of exp. that "fails"
836      (cg2d matching number) and leave the others for later: front_relax(10),
837      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
838      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
839    
840    checkpoint57o_post
841    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
842      (2) its ready to be documented during the 20050801 DocFest
843    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
844      for ideal_2D_oce and lab_sea on linux_ia32_g77
845    o set to #undef CTRL_SET_OLD_MAXCVARS_30
846      in global1x1_tot/code_seaice_adj to access indices 32, 33
847      (worth another tag)
848    
849    checkpoint57n_post
850    o adding precip control xx_precip 32
851    o adding swflux control xx_swflux 33
852    o Replacing 10 forcing penalty cost routines by 1 generic.
853    o Implementing partitioning in time-mean and variable adjustment
854      for atmos. state.
855    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
856    o in natl_box_adjoint:
857      * updated exp 1 to 10
858        (but does not have time-mean vs. variable split results yet)
859    o updated global1x1/*_seaice_adj/
860      to incorporate latest changes
861    o enable useSingleCpuIO for mdsio vector routines
862      (applies in particular to tapelev I/O)
863    o removed inefficient K-loop in all active_file*control*.F
864    
865    checkpoint57m_post
866    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
867      and advect_cs (use EXCH-2 and standard cs-32 grid files).
868    o pkg/exch2: filling of face-corner halo regions is optional
869      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
870    
871    checkpoint57l_post
872     tag before updating tutorials (pre-release-2)
873    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
874       for output and interpolation of input fields onto model grid)
875    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
876       Affects results of exp. rotating_tank ; update output.txt.
877    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
878          and taking the square quantity and/or using a fraction-weight field.
879    o fix aim_diagnostics_init.F mate numbers.
880    o add mnc output capability to diagnostics/diagstat and update
881      our cvsignore files for the ACSII output generated
882    
883    checkpoint57k_post
884    o lab_sea now uses diagnostics package and provides a suite of
885      new EXF diagnostics output.
886    
887    checkpoint57j_post
888    o exf
889      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
890        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
891        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
892      * extended diagnostics output
893        - now includes all EXF variables
894        - hs, hl moved to common block
895        - separate S/R for diagnostics, called after ctrl vector is added
896        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
897        - EXFqnet contains true Qnet (i.e. includes qsw)
898      * updated verif. lab_sea, global_with_exf
899      * Rearranging hflux (exf_mapfields -> exf_getforcing)
900        to ensure that diagnostics sees a true EXFqnet
901    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
902    o diagnostics pkg: change pointers so that 1 diagnostic can be used
903      several times with different frequencies.
904    o mnc-ify the thsice package as requested by Daniel Enderton
905      - the monitor--MNC output needs work
906      - many attributes need to be added (most are currently blank)
907    o mnc-ify theaim_v23 package as requested by Daniel Enderton
908      - many attributes need to be added (most are currently blank)
909    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
910    o add Sadourny like discretization to the 4th.O vorticity advection scheme
911    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
912      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
913         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
914    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
915     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
916    
917    checkpoint57i_post
918    o Diagnostics package was changed: diagnostic allocation is now deactivated
919      by setting an empty file name in the namelist (used to be by setting 0 frequency)
920    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
921      add 1rst Order upwind vertical Shear.
922    o add a quick fix for A/B checkpointing in OFFLINE mode
923    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
924      end-run around the C/Fortran linking horror in eesup/src/timers.F
925    o added pkg/runclock: allows user to terminate run based on wall clock
926    o added non-hydrostatic scaling parameter: nh_am2
927    o pkg/my82: futile attempt to make results compiler-independent by adding
928      some "_d 0", etc. no effect.
929    o for mnc output, fill the 'T' coordinate var with myTime and create a
930      separate 'iter' variable for iteration count
931    o pkg/diagnostics:
932      add new capability: output of Global/Regional & per-level statistics ;
933      tested against monitor output (including land & thSIce) on various exp.
934    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
935    
936    checkpoint57h_done
937      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
938      data.diagnostics, data.gchem, data.ptracers) is done.
939    
940    o pkg/diagnostics: prepare for Global/Regional statistics.
941      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
942    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
943      and rename it: DIFFERENT_MULTIPLE
944    
945    checkpoint57h_post
946    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
947    o pkg/diagnostics: change output frequency, now in seconds (instead
948      of Nb of iterations). This requires to change data.diagnostics.
949    checkpoint57h_pre
950    
951    o in mnc, let the user create the output dir if both mnc_outdir_date
952      and mnc_outdir_num are false
953    o add fflags() to pkg/diagnostics which allows one to specify, on a
954      per-file basis, the file precision [default behavior is unchanged]
955    o added diagnostics to pkg/kpp, including computation of mixed layer
956      depth based on a temperature/density criterion
957    o updated verification/natl_box to test the new pkg/kpp diagnostics
958    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
959    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
960    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
961      not mnc -- this mistake was found by JMC and is now corrected
962    
963    checkpoint57g_post
964    o add Adams-Bashforth 3rd Order time stepping:
965      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
966      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
967    checkpoint57g_pre
968    
969    o make lambda[Theta,Salt]ClimRelax spatially varying
970      (default remains spatially uniform constant based on tau)
971    o added new control variables
972      * init. uVel, vVel, etanN
973      * lambda[Theta,Salt]ClimRelax
974    o separate masks used for ctrl_pack/unpack 'from write_grid' output
975      (suggested by G. Forget)
976    
977    checkpoint57f_post
978    o add parameter "baseTime" = model base time = time at iteration zero
979      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
980      account for baseTime shift
981    o move Coriolis arrays from PARAMS.h to GRID.h
982    checkpoint57f_pre
983    
984    o mnc-ifying the seaice package
985    o introduced an alternative length scale calculation for use in the limiting
986      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
987    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
988    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
989      as well as grad(vort3).  Made it compatible with both approximate form
990      for the cubed sphere and full form of these gradients.  Added flag
991      useFullLeith to select between approximate and full form.  
992    o add "d0" in getcon.F to reduce differences between compilers/platforms
993      update output.txt of exp. fizhi-gridalt-hs
994    o change port_rand funtion to allow to set the seed.
995    o fix obscure MNC bug involving conversion between reals and integers
996      - it caused no problems with certain (eg. gcc, ifc) compilers but the
997        new version is now more standards-compliant
998    o adjoint-related modifications
999      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1000      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1001      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1002    
1003    checkpoint57e_post
1004    o Adding eddy stress controls a la Ferreira et al.
1005    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1006    
1007    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1008      update output.txt of exp. fizhi-gridalt-hs
1009    o add more "Z" dimensions and associated coordinate vars to MNC
1010    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1011    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1012      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1013      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1014      months and years.  Requires pkg/cal.
1015    o diagnostics: add pickup functionality
1016      - off by default for backwards compatibility
1017      - current version only uses MDSIO -- MNC will be added
1018    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1019    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1020    
1021    checkpoint57d_post
1022    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1023    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1024      output from the diagnostics package
1025    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1026    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1027      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1028    o add coordinate variables to the MNC output from the diagnostics package
1029    o change MNC-flags default value: true when useMNC=TRUE
1030    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1031      the ability (off by default) to read the grid information using MNC
1032    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1033    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1034    o do snap-shot diagnostics at the middle of the time-interval (instead of
1035      at the end).
1036    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1037      new test for AIM with thSIce + slab-ocean
1038    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1039    o move state variable diagnostics to the beginning of the time step ;
1040      (note: still needs some work specially for snap-shot diagnostics)
1041      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1042    
1043    checkpoint57c_post
1044    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1045    o generate new output.txt files on faulks with g77 & the new -ieee option
1046    checkpoint57c_pre
1047    
1048    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1049      update output.txt of exp. global_ocean.90x40x15
1050    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1051      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1052    o add saltFlux(+File) forcing capability with periodicExternalForcing
1053    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1054    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1055    o improvements for the MNC output from DIAGNOSTICS:
1056      - correct handling of the unlimitied dimension
1057      - all dims now have associated coordinate variables
1058      - variables located at U, V, and Corner ("Z") points are now written
1059        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1060        *all* data points are output
1061    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1062    o added pkg/seaice/seaice_monitor.F
1063    o mdsio_readfield.F can now read files visible only to master MPI process.
1064    o pkg/seaice: some test code for ice-modified ocean stress
1065    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1066      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1067      spurious negative numbers for precipitation and humidity.  Will cause
1068      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1069    o pkg/ctrl/
1070      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1071        May be enabled via doPackDiag
1072      *  introduce z-scaling of
1073         + gradient (doZscalePack) and
1074         + control (doZscaleUnpack)
1075    o pkg/mdsio/
1076      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1077      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1078    
1079    checkpoint57b_post
1080    o simplify options in diagnostics_fill arguments (remove weird combinations)
1081    o fix MNC coordinate variables so that they now contain per-face index
1082      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1083      general, EXCH2 grids are only aligned to a "local" coordinate system
1084    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1085    o Implement instantaneous output within pkg diagnostics:
1086      setting a negative frequency in data.diagnostics produces
1087     "snap-shot" output (as opposed to time-average if freq > 0)
1088    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1089      NOTE: change ptracer diagnostics name: use 2 characters to work with
1090            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1091    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1092      becomes the coordinate variable for the 'T' dimension
1093    o add CF-style coordinate variables to MNC
1094      - just a first cut:  numbers are meaningless on the cubesphere and
1095        missing along the T axis but otherwise it works!
1096    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1097    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1098    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1099      this is based directly on what the model compute, so that the content of
1100      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1101    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1102    o clean up build options files for SunOS, in particular
1103      - remove -traditional from xmakedepend
1104      - change -xarch=v9 to -xarch=native for f77
1105      - restore use of make (not gmake)
1106      - add CC=gcc if using g77
1107    o changes per discussion of AM, JMC, & EH3 today:
1108      - move redundant "grid" variables out of "state" -- in preparation of
1109        creating proper CF-style coordinate variables and in recognition
1110        that any/all grid variables can be easily copied (eg. w/NCO) from
1111        the grid files into any of the other NetCDF files
1112      - *always* output grid variables with MDSIO (this will eventually be
1113        changed)
1114      - output MNC grid file if useMNC is true
1115    o every instance of _END_MASTER() has been found and replaced with
1116      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1117      preprocessors
1118    o re-arrange diagnostics pkg initialisation:
1119     - allow each package to extend the available diagnostics list
1120     - add some checking and fix small problems (multi-threaded, ...)
1121     - new S/R diagnostics_fill (replace fill_diagnostics):
1122       look through the short list of active diag. (instead of the long list)
1123       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1124    
1125    checkpoint57a_post
1126    o this set of changes restores TAMC compatibility
1127      tested for global_ocean.90x40x15 adjoint on trough
1128      (what a pain)
1129    
1130    checkpoint57a_pre
1131    o some modifs in tools/build_options for sunos
1132    o call ctrl_pack for ctrl at end for optimcycle=0
1133    
1134    checkpoint57
1135    o add horizontal bi-harmonic viscosity for vertical velocity
1136      - new parameter viscA4W (defaults to viscA4)
1137      - affects only non-hydrostatic code
1138      - to be done: no-slip lateral boundary conditions
1139    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1140    o implement Implicit Vertical advection for pTracers
1141    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1142      (implemented also for implicit vertical diffusion & advection)
1143    o OBCS: extend application of tracer open boundary conditions
1144      to a strip beyond the boundary of width Olx/Oly
1145    o add call monitor to TAF set of required calls (flow directives)
1146      and include in natl_box_adjoint
1147    o untangle a few ifdefs related to cost, ctrl, autodiff
1148      untangel a few ALLOW_ECCO_OPTIMIZATION
1149    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1150      (theta2, salt2 in ecco_cost_weights)
1151    
1152    checkpoint56c_post
1153    o OBCS as control variables
1154      - update ctrl_ad_diff.list, obcs_ad_diff.list
1155      - remove balance of obcs controls from default
1156      - fix index bug nobcs in ctrl_init
1157      - fix dummy fields filen in ctrl_pack
1158      - add dummy weights for obcs
1159    o lsopt: comment out fort.94 output
1160    o optim:
1161      - remove unnecessary header files
1162      - adjusted namelists
1163      - add xerbla.F to Makefile
1164    o exf:
1165      - multiple modifications of exf_check_range
1166      - unit change in exf_init_runoff from [m/year] to [m/s]
1167    o mdsio:
1168      - i/o-vector change debugLevel from debLevA to debLevB
1169    
1170    checkpoint56b_post
1171    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1172      is called from DO_THE_MODEL_IO
1173      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1174      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1175      - clean up PTRACERS_WRITE_TIMEAVE a little
1176    o add another verification experiment that tests both the cfc-pkg and
1177      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1178      reactive tendencies treated inline with regular timestepping
1179    o testreport previously did a lousy job of comparing small numbers, so
1180      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1181      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1182      testreport.
1183    o ptracers_monitor: bug fix for MPI
1184    
1185    checkpoint56a_post
1186    o GCHEM: finish reorganizating the package
1187      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1188        (introduces another 3D-array for each passive tracer, but only if
1189        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1190        gchemTendency is not needed because the timestep is done separately)
1191      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1192      - GCHEM is now---more or less cleanly---separate from PTRACERS
1193      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1194        so clear to me how that should be done in a general way.
1195    o CFC: improve formatting of output in CFC_ATMOS
1196    o PTRACERS:
1197      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1198        that ALL experiments with ptracers enable can be checked. This makes
1199        GCHEM_MONITOR obsolete.
1200      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1201        monitorFreq
1202      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1203    o add PTRACERS (PTR0[1-5]) to testreport output
1204    o exf_check_range:
1205      * default changed to .TRUE.
1206      * will check values for niter0 if debLevA, every timestep if debLevB
1207      * STOP in exf_check_range if 'out of range'
1208      * range chosen generous to allow for potential extema
1209      TBD: a version with stricter range
1210           permitted range would be runtime parameters
1211    o GMredi:
1212      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1213      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1214      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1215    o GCHEM:
1216      - move call to GCHEM_FORCING_SEP, so that it is now called before
1217        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1218      - introduced a useGCHEM runtime flag and applied it everywhere.
1219      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1220        this flag is now only visible within GCHEM-pkg routines.
1221      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1222        be replaced by a 3D array that is computed before thermodynamics; for
1223        this, the tracer ID iTracer had to be included into the parameter list
1224        of ptracers_forcing
1225      - set up forward_step to call gchem_forcing, that will replace
1226        gchem_forcing_int in ptracers_forcing
1227      - cleaning up
1228    o small cleaning of exch2: remove files that are also in eesupp/src
1229    
1230    checkpoint56
1231    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1232    o mnc: cleanup "full" files--fixes out-of-memory problem
1233    o ECCO-GODAE
1234      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1235      * fully merged and updated from SIO code
1236        windstress sign change affects
1237        - exf_inscal_[u/v]stress
1238        - sign of xx_tau[u/v] adjustments
1239        - signs in cost_scat
1240      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1241      * natl_box_adjoint updated and compressed
1242      * 2-level checkpoint switch added
1243        (tested in EXP. 1 of natl_box_adjoint)
1244      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1245    o SVD
1246      * first complete, non-hacked version for SVD calculations
1247      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1248        performed via direct access files admtlm_vector.it????
1249        (via ctrl_[un]pack)
1250      * optimcycle is used for ARPACK iteration counter
1251        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1252      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1253        and add linear transforms where necessary
1254      * controls are initial/final SST, SSS (can be extended; need to check
1255        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1256    o mdsio: filename info to both stderr, stdout
1257    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1258      from sign change
1259    
1260    checkpoint55j_post
1261    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1262      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1263    o add consistent build directories and .cvsignore files to verification
1264    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1265    o make all subroutines 30 or less characters in length for certain older
1266      compilers to work (a thorough search only turns up two routines in
1267      pkg/ptracers)
1268    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1269      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1270    
1271    checkpoint55i_post
1272    o change arrays for total vertical diffusivity (2.D if explicit,
1273      3.D if implicit) ; each ptracer uses its own background value.
1274    o added mnc/NetCDF output capability to ocn_compon_interf
1275      - added bits to verification/cpl_aim+ocn so that it can run on
1276        ITRDA and other clusters without the mpirun "-wd" option
1277    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1278      configuration
1279    o give MNC the ability to create additional files rather than
1280      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1281      - the default is just less than 2GB which is a practical limit
1282        on many systems
1283    o Compute the non-local term using either KPP vertical diffusivity (=default)
1284       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1285    
1286    checkpoint55h_post
1287    o add verification test "vermix"
1288    o remove all the *_ioinc flags and replace with the single global
1289      outputTypesInclusive flag
1290    o allow to set a vertical profile of vertical diffusivity for T & S
1291    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1292    o useMNC moved from data.mnc to data.pkg
1293    
1294    checkpoint55g_post
1295    o Renaming carbon AD experiments to comply with testreport conventions
1296    o Updating adjoint of Held-Suarez hs94.1x64x5
1297    o Fixing directives for non-ECCO forward_step, after ECCO directives
1298      have been fixed to avoid recomp. of do_oceanic_phys
1299      Works well for global_ocean.90x40x15,
1300      but recomp. issue remains for carbon
1301    o Updating adjoint output for natl_box_adjoint after
1302      pkg/ecco has been modified (see taga c55d_post)
1303    
1304    checkpoint55f_post
1305    o rename to timeave_init_fixed
1306    
1307    checkpoint55e_post
1308    o some delicate re-shuffle of store directives to avoid one
1309      extra call of do_oceanic_physics
1310      affects ecco_the_main_loop.F, do_oceanic_physics.F
1311      checkpoint_lev1_directives.h
1312    o NB: this may break global_ocean adjoint temporarily,
1313      but it is clear how to fix it. Will do later, need this now.
1314    
1315    checkpoint55d_post
1316    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1317    o ecco_cost_weights is modified to 1x1 runs
1318    o modifs to allow observations to be read in as
1319      single file or yearly files
1320    o enable to read exf forcing fields as either
1321      single file or yearly files (flag useExfYearlyFields)
1322    checkpoint55d_pre
1323    
1324    o switch between 2-level and 3-level checkpointing
1325    o add ability of MNC to write local and "partial" (eg. 2D slices where
1326      the full 3D field is never actually stored) arrays to NetCDF files
1327      with the correct (that is, the complete multi-dimensional) set of
1328      array indicies
1329      - used in mom_vecinv() to write the diagFreq output
1330      - tested (demonstrated) in verification/aim.5l_cs
1331    o further mnc-ification
1332      - add verification/lab_sea to the list with mnc setups
1333      - fix undefined mnc v-names in cd_code
1334      - add kpp to mnc output (both snapshot and timeave)
1335    o non-hydrostatic code
1336      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1337        in calc_gw.F
1338      - defaults to viscAh
1339      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1340        friction or Leith) in non-hydrostatic mode, as long as there is
1341        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1342    o pkg/cost
1343      extend simple cost functions to treat time mean quantities
1344      (T,U,V) via cost_accumulate_state from cost_tile
1345    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1346        be 2 times larger than the minimum size the advection scheme requires.
1347        now get a perfect conservation of salt in advect_cs test-exp (updated)
1348    o GGL90 (Gaspar's TKE mixed layer)
1349      - add horizontal diffusion of TKE, requires exchanges in
1350        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1351        default. In OPA there is no horizontal diffusion of TKE but the
1352        mixing coefficients are computed from a horizontal average of TKE of
1353        6 points or so. I think that diffusion has a little more physical
1354        justification.
1355      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1356        was in vain)
1357      - mask tke-variable in ggl90_init
1358    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1359    o fix biharmonic diffusion on CS-grid.
1360    o more obcs stuff
1361      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1362        for reading boundary values. This routine is called from
1363        obcs_prescribe_read
1364      - updated obcs_check
1365      - changed sponge layer relaxation parameter units for days to seconds
1366      - turned off sponge layer by default
1367      - changed argument list of OBCS_CALC to myTime+deltaTclock
1368      - fixed about 35 bugs in obcs_external_fields_load
1369    
1370    checkpoint55c_post
1371    o obcs stuff
1372      - new runtime flags useOBCSprescribe, useOBCSbalance
1373      - re-arranged obcs_calc
1374      - moved exf_getobcs to obcs_prescibe_read
1375        obcs_prescibe_read is called after ORLANSKI stuff
1376        and independent of it (executable can contain all).
1377      - updated obcs_check
1378      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1379        These may be necessary only if tangential velocities are
1380        prescribed at OB, not sure, needs testing.
1381    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1382      which simplifies the calls and passes the ifc check-bounds test
1383    
1384    checkpoint55b_post
1385    o add a 2D scalar, Z location, exchange_2 routine.
1386    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1387      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1388      affects advect_cs results (for the wrong reason): update output.txt
1389    o use a more standard discretization for biharmonic viscosity ;
1390     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1391      affects results of dome set-up: update output.txt
1392    o fix gad_advection.F (CubedSphere part), back to version 1.23
1393    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1394    
1395    checkpoint55a_post
1396    o merged code to
1397      * prescribe/read time-dependent open boundaries
1398        (works in conjunction with exf, cal)
1399      * sponge layer code for open boundaries
1400      * each boundary N/S/E/W now has its own CPP option
1401        (healthy for the adjoint)
1402    
1403    checkpoint55
1404    o up-to-date adjoint of previous breaks
1405      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1406      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1407      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1408      - carbon: * remove tr1-related adjoint verification
1409                * add ptracer as control variable
1410    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1411      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1412    
1413    checkpoint54f_post
1414    o in verification/carbin/ remove experiment related to
1415      ALLOW_PASSIVE_TRACER (array tr1 etc)
1416      code_ad/ input_ad/ results_ad
1417    
1418    o add two new packages
1419      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1420        + subject to optimization (memory)
1421      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1422        + subject to reordering (many GOTOs in the original code)
1423        + so far opps is called for every (i,j) point, and then operates in
1424          the vertical; one may want to reorder the scheme in order operate in
1425          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1426          fields)
1427    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1428      - all verification tests compile and run with linux_ia32_g77
1429      - defaults are compatible with current input files--nothing
1430        should change if you were not previously using MNC
1431      - MNC output has been added in numerous places (eg. timeave)
1432        but there are still a few writes not yet do-able with MNC
1433        (this is in progress)
1434      - flags now allow for either/or/both use of MDSIO and MNC and
1435        documentation will soon follow
1436      - numerous small formatting cleanups for ProTeX
1437    o add version info (via BUILD_INFO.h) to MNC and stdout
1438    
1439    checkpoint54e_post
1440    o add two new packages
1441      - pp81 (Packanowski and Philander, 1981), Richardson number and
1442        stratification dependent mixing
1443      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1444      - these scheme operate in a similar manner as KPP (without ghat, of
1445        course), however there is only one diffusivity that is used for both
1446        temperature and salinity (and passive tracers)ç
1447    o add offline package
1448    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1449      provided by Stephanie Dutkiewicz
1450    o genmake2: add ability to search for C compilers and cleanup test output
1451      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1452    
1453    checkpoint54d_post
1454    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1455    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1456      leading to additional shift by 5 days each year of integration
1457       (i.e. leading to considerable offset over the years)
1458    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1459    o start with no AB and no initial filtering (staggerTimeStep):
1460      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1461    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1462      (external loading & cpl import/export stay in forward_step.F)
1463    o update coupling interface to work with new staggerTimeStep
1464    o change MDSIO ptracers_pickup.
1465    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1466    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1467    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1468    
1469    checkpoint54c_post
1470    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1471      this affects (truncation error) output.txt of test-exp:
1472       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1473    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1474    o change Qnet to always be the net heat flux, (+upward).
1475      affects (truncation error) output of natl_box exp.: updated
1476    o define the max number of passive tracers in PTRACERS_SIZE.h
1477    o start to test mnc routinely in exp0
1478    o add sea-ice loading (sIceLoad) as a new forcing field.
1479    
1480    checkpoint54b_post
1481    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1482       impressive on Altix and Opteron systems)
1483    o diagnostics can now write NetCDF files through the mnc package
1484    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1485    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1486    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1487      affects (truncation error) output of lab_sea & natl_box exp.: updated
1488    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1489    
1490    checkpoint54a_post
1491    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1492    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1493    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1494    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1495      + internal_wave (shift in writing cg2d_ini_res)
1496    checkpoint54a_pre
1497    
1498    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1499      - modified verification/lab_sea and natl_box_adjoint accordingly
1500    
1501    checkpoint54
1502    checkpoint53g_post
1503    o prepare splitting of thermodynamics: store convect.counter in common block
1504    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1505      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1506    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1507    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1508    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1509    o restore adjointability
1510    
1511    checkpoint53f_post
1512    o modifications that affect AIM experiment results (update output.txt):
1513      - no advection of S at top interface Nr (pkg/generic_advdiff)
1514      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1515    o AIM pkg:
1516      - include stability function into surf.Flux derivative relative to Tsurf
1517      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1518    
1519    checkpoint53e_post
1520    o merged cylindrical coord configuration
1521    o added rotating_tank experiment
1522    checkpoint53e_pre
1523    
1524    checkpoint53d_post
1525    o faulks upgraded: re-generate output.txt that have changed:
1526       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1527    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1528    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1529    o added Sadourny discretization of Coriolis
1530      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1531      - re-enabled use of omega3 (useAbsVorticity)
1532    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1533      vector-invariant equations
1534      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1535    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1536      hopefully without new bugs
1537      - still to do: biharmonic friction for non-hydrostatic w
1538    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1539    o regenerated output for global_ocean_ebm (using -ieee)
1540    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1541      of mom_common/
1542      - simple re-arrangement of instructions within computing loop
1543    checkpoint53d_pre
1544    
1545    checkpoint53c_post
1546    o new version of coupler for AIM+thSIce and Ocean models
1547     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1548     - land: change Evaporation of snow
1549     - aim with thSIce: fix bug in snow-precip.
1550    o changes to calc_gw.F
1551     - bug fix for w^2 term near the bottom boundary
1552     - (hopefully) improve the lateral slip boundary condtions for use with
1553        partial/looped cells
1554      - because the bug fix changes two verification experiments anyway (exp5
1555        and plume on slope), change the lateral boundary condition from half slip
1556        to the value of no_slip_sides
1557    o ebm package wasnt quite up to the parallel task. Fixed that.
1558    o Adjoint of EBM package + verification
1559      * TLM OK
1560      * ADM not sufficient accuracy yet (needs further testing)
1561    
1562    checkpoint53b_post
1563    o Commiting new energy balance model to repository
1564      * package is pkg/ebm
1565      * verif. is verification/global_ocean_ebm
1566      * references are in ebm_driver.F
1567    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1568    C        Global thermohaline circulation. Part I:
1569    C        Sensitivity to atmospheric moisture transport.
1570    C        J. Climate 12(1), 71-82
1571    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1572    C        Global thermohaline circulation. Part II:
1573    C        Sensitivity with interactive transport.
1574    C        J. Climate 12(1), 83-91
1575    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1576    C        Destabilization of the thermohaline circulation
1577    C        by atmospheric eddy transports.
1578    C        J. Climate 7(12), 1870-1882
1579    o Will need long integration testing.
1580    checkpoint53b_pre
1581    
1582    o created pkg/mom_common in preparation for variable viscosity code
1583    o renamed and split ini_mnc_io
1584    o pkg/land: only liquid water can diffuse or run-off
1585    o AIM using land: soil wetness availability account for snow
1586    o added printMapIncludesZeros to EEPARMS namelist
1587    
1588    checkpoint53a_post
1589    o restore TAMC compatiility for exf_constants.h
1590      (no usage of _d in .h)
1591    o Additional storing in KPP in an attempt to fix
1592      TAMC problem with adjoint of KPP code.
1593      (no success...)
1594      Identical code works fine with TAF.
1595    o Fixed verification/natl_box_adjoint experiments.
1596      Initial conditions for Experiments 4 and 5 are now
1597      set to "SEAICE_initialHEFF=0", which is more reasonable,
1598      and hence gives results closer to that of Experiment 2.
1599      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1600    
1601    checkpoint53
1602    o stable checkpoint with up to date adjoint
1603      TLM tests only run for 1st grdchk at the moment. Its unclear if
1604      this is a code problem or a problem with resetting code for g_
1605      variables that is being autogenerated wrong.
1606      Otherwise:
1607       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1608       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1609         are both still in chaos following their security messes.
1610    
1611    checkpoint52n_post
1612    o various build (mostly genmake2) changes including:
1613      - ability to build/run more easily within Cygwin and MacOS X
1614      - more complicated Makefiles with a stronger dependence on Gnu Make
1615    o pkg/seaice modifications
1616      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1617        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1618        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1619      - changed proxy for geostrophic velocity and updated
1620        verification/lab_sea/results/* accordingly
1621      - removed ADI dynamic solver from pkg/seaice
1622      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1623        they caused a segmentation fault under certain circumstances
1624      - removed unused field WATR
1625    o bug fix in exf-package:
1626      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1627         now reflect that.
1628    o small fixes in the cal-package:
1629      - set reference date to first of January for the 'model'-calendar
1630      - failing of cal_CheckDate in cal_FullDate now actually results in a
1631        warning
1632    o small modifications in exf-package to increase flexibility:
1633      - change climtempfreeze from a constant to a runtime parameter that
1634        is specified in data.exf_clim (default = -1.9)
1635      - introduce runtime parameter windstressmax (default = 2.0) that is
1636        specified in data.exf
1637    o fix in pkg/thsice:
1638      - update Evap (Tsf changes) to be consistent with Latent heat flux
1639      - maintain snow precipitation unchanged (even if Tsf >=0).
1640     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1641    
1642    checkpoint52m_post
1643    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1644      this does not change any of the results, because myIter=0 in swfrac always
1645      lead to jwtype=2 (the default anyway), but the call makes little sense
1646      as a default
1647    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1648    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1649      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1650    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1651    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1652    o extending useSingleCpuIO option to work with new exch2 I/O format
1653      - old-style, missing-tile I/O is still accessible by defining CPP
1654        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1655    o monitor package can write to NetCDF files and/or STDOUT
1656    o fix re-definition bug in MNC_GRID_INIT_ALL()
1657    o doc/api_reference added
1658      - a framework for building an API Reference Manual using all
1659        the "protex" comments embedded in the code
1660      - see pkg/generic_advdiff, pkg/mnc for examples
1661    o MNC:
1662      - make myThid the last argument for all subroutines
1663      - new default for the grid files: NO halos
1664      - add useMNC and other run-time flags
1665      - separate per-file-group handling of the unlimited dimension
1666      - early initialization of MNC w/ flags read at the eeboot stage
1667        and lookup tables set in initialize_fixed
1668      - write all MNC output to a freshly-created directory
1669    o thermodynamics sea-ice (thsice) is now tested with testreport.
1670    o test exp. advect_cs: use the standard cs32 grid ; update output.
1671    o Added functionality to grdchk:
1672      pick global i,j,k position (or nearest wet) where to perform check.
1673    
1674    checkpoint52l_post
1675    o new land formulation:
1676      a) use ground enthalpy as prognostic variable to ensure exact
1677         energy conservation.
1678      b) account for water temperature and for latent heat of freezing
1679         in all processes (rain, run-off, ground storage)
1680      c) compute surface and ground temperature implicitly.
1681    o aim_v23 modification for new land model:
1682      a) Treat separately land / ocean / sea-ice surface fluxes
1683         to allow implicit computation of land & sea-ice surface temp.
1684      b) add snow precipitation.
1685    checkpoint52l_pre
1686    
1687    o fix problem (when 1 tile is empty) in min/max monitor.
1688    o fix bug in timeAve (u,vZetatave in common block)
1689    o no restoring terms under ice for pkg/seaice
1690    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1691    o bug fix for pkg/seaice pickups
1692    o change MNC call locations and add coordinate attributes
1693    o mask vorticity at the corner ; affects global_ocean.cs output
1694    o fix ini_curvilinear_grid ; test CS experiments with mpi
1695    o aim.5l_cs: modify sea-ice fraction input file ; update output
1696    o exf: Adding simple range check routine for exf fields after read
1697    
1698    checkpoint52k_post
1699    o removed top-level directory "diags"
1700      - we migrated these functions to pkg/timeave a long time ago
1701    o fixed bug introduced in pkg/monitor
1702    o accuracy ctrlprec = 32 insuffient for gradient checks using
1703      averaged fields (I/O via cost_averages)
1704      -> use ctrl.h in active_file*.F to control I/O precision.
1705    o paramter list of CALL ADTHE_MAIN_LOOP
1706    o added initial do_the_model_io to ecco
1707    o set all ...Freq to zero after cost_final
1708      taveFreq, dumpFreq, pChkptFreq
1709    o MAIN and ECCO differentiability restored
1710    
1711    checkpoint52j_post
1712    o fix nchklev in tamc.h for global_ocean...
1713    o Bringing flow and store directives up-to-date
1714    o Really weird thing!
1715      call do_the_model_io from the_main_loop with parameters
1716      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1717      TAF places a faulty re-call of initialise_varia
1718      after cost_final call which should not be there!
1719    checkpoint52j_pre
1720    
1721    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1722      error messages
1723    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1724    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1725      debug output
1726    o modfied mdsio_writefield.F to handle non-global files under exch2
1727    o update AIM Cubed-Sphere exp (aim.5l_cs):
1728      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1729    o update AIM Equatorial Channel exp:
1730      use standard aim_v23 pkg and change the SST fields to be more realistic.
1731    o globalFile now works with exch2
1732    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1733      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1734    o limit timeave output for hi-res integrations
1735    
1736    checkpoint52i_post
1737    o removed CPP_EEOPTIONS.h from verification/*/code
1738    o updated the tiling for global_ocean_pressure
1739    checkpoint52i_pre
1740    
1741    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1742      the old pkg/aim).
1743    
1744    checkpoint52h_pre
1745    o shortened offending lines in exch2_send_rx?.template
1746    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1747    o genmake2: add build & execute test for NetCDF code
1748    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1749      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1750    o added useSingleCPUIO flag to monitor.F and mon_out.F
1751    o added temporary hack for sea-ice dynamics on the cube:
1752      metric terms are ignored and it is assumed that
1753      there is no sea-ice on cube faces 1, 2, 4, and 5.
1754    
1755    checkpoint52f_post
1756    o added exch2 cube routines to pkg/exch2
1757    o modified hs94.cs-32x32x5 to use it
1758    o added new grid files to hs94.cs-32x32x5
1759    checkpoint52f_pre
1760    
1761    checkpoint52e_post
1762    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1763      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1764    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1765      to work with implicit vertical advection and AB ;
1766    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1767    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1768     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1769    checkpoint52e_pre
1770    
1771    o fix bug in impldiff when Nr=1 or Nr=2.
1772    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1773    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1774    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1775      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1776    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1777    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1778    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1779    
1780    checkpoint52d_post
1781    o re-tiled many expts to allow comparison in multi-processor mode
1782      - updated output accordingly
1783      - changed hs94.128x64x5 to use intial T from file rather than use the
1784        random number generator
1785    o add infrastructure in model routines for fizhi and gridalt packages
1786    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1787    o changes to permit hi-res, cubed-sphere, configuration
1788      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1789      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1790      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1791        of surface winds for the cube
1792      (A verification experiment, based on global_ocean.cs32x15, but with
1793       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1794       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1795       complete with example surface forcing files and matlab scripts to look
1796       at the output and compare it with that of global_ocean.cs32x15.)
1797    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1798       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1799       to conform to the common rule.
1800    o check-in the first version of the coupler + interfaces for multi-components
1801       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1802       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1803       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1804       - ocean and atmos. share the same horizontal grid (no interpolation).
1805       - exchanges between component and coupler is done in forward_step
1806    o new verification experiment, cpl_aim+ocn:
1807       coupled ocean - AIM atmosphere on cs32 grid.
1808    
1809    checkpoint52d_pre
1810    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1811    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1812    
1813    checkpoint52c_post
1814    o Fixing OPTIONS files for use of exf:
1815      - ALLOW_ECCO not needed
1816      - ECCO_CPPOPTIONS.h should not be included from
1817        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1818        as has been the case in the past
1819      - All cal/exf related options are currently set in
1820        single header file. Should remain so until we
1821        agree on a consistent new policy.
1822    o Removed all CPP options for cal package.
1823      cal has no more CPP options.
1824    o modified STOREs in GAD_ADVECTION
1825    o corrected key comp. for passkey
1826    
1827    checkpoint52b_post
1828    o new version: "thsice" of thermodynamic sea-ice pkg:
1829     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1830     - modify fluxes but do not change theta directly;
1831     - light cleaning of bulk_force pkg (still needed with thsice).
1832     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1833       + output_thsice.txt to test thsice & bulk_force pkgs.
1834    o put back grid & coriolis monitor output.
1835    checkpoint52b_pre
1836    
1837    o call "do_the_model_io" at the beginning (=> dump initial state)
1838    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1839    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1840      (need info on NUMBER_OF_PTRACERS)
1841    o missing PTRACERS headers in some routines
1842    o default tamc.h in pkg/autodiff supposed to crash
1843      to ensure proper customization
1844    
1845    checkpoint52a_post
1846    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1847      - moved surfaceTendencyTice from pkg/seaice to main code
1848      - subroutine FREEZE_SURFACE now limits only surface temperature
1849        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1850        => new output.txt for global_ocean.cs32x15 & global_with_exf
1851      - keep the old version of FREEZE for backward compatibility;
1852        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1853      - corresponding modifs for TAF directives
1854    o added surface flux output variables to TIMEAVE_STATVARS
1855    o time-averaged output for pkg/ptracers
1856    o fix problem with ECCO-related divided adjoint
1857      snapshot file was missing some ad-variables,
1858      but no warning issued by TAF
1859    
1860    checkpoint52a_pre
1861    o some bug fixes for #undef REAL4_IS_SLOW
1862    
1863    checkpoint52 = ecco_c52_e35
1864    o after testing adjoints of checkpoint51u_post
1865    
1866    checkpoint51u_post
1867    o this is the post-merge tag of the ecco-branch
1868      (needs another clean checkout and re-testing)
1869    o various natl_box_adjoint configs and results
1870      but no input fields
1871    o obcs adjoint not yet merged!
1872    o adding ECCO global 1x1 and 2x2 degree configs
1873    o updated/extended some store directives for seaice
1874    o pkg/ecco now containes ecco-specific part of cost function
1875    o top level routines the_main_loop, forward_step
1876      supersede those in model/src/
1877      previous input data.cost now in data.ecco
1878      (new namelist ecco_cost_nml)
1879    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1880    
1881    checkpoint51t_post
1882    o this is the pre-merge tag of the ecco-branch
1883    
1884    checkpoint51s_post
1885    o cleanup: removed various obsolete #define-s
1886    o pkg/grdchk
1887      - renamed 'ph-grd 3' to 'grad-res'
1888      - merged from ecco-branch
1889        (remaining bug fixes for obcs gradient checks)
1890      - additional high-precision output for testreport
1891        (grep for 'precision_grdchk_result')
1892    
1893    checkpoint51r_post
1894    o cleaned up or removed CPP_OPTIONS.h files
1895    o updated results for some of the tests to reflect the new
1896      optfiles (-ieee: -O0 instead of -O3)
1897    
1898    checkpoint51q_post
1899    o cd_code:
1900      - moved cd_scheme.F -> cd_code_scheme.F
1901      - separate read_checkpoint from cd_code_ini_vars.F
1902      - separated cd_code part from write_checkpoint
1903      - updated AD_SOURCE, generated .flow
1904      - added CD_CODE_VARS.h to the_main_loop
1905      - Moving cd_code specific store dir.s to pkg/cd_code
1906    o ctrl package totally restructured
1907      - pack/unpack now optional and decoupled from
1908        xx_/adxx_ I/O
1909      - ctrl_pack/unpack cleaned
1910        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1911      - confined inclusion of AD_CONFIG.h to where necessary.
1912    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1913    
1914    checkpoint51p_post
1915    o create initial cd_code package
1916      - WARNING: the initialization of fields within packages
1917        is broken because INI_FIELDS (where READ_CHECKPOINT is
1918        called) is called *before* PACKAGES_INIT_VARIABLES.
1919        This seems to be backwards since
1920        1) its important to initially zero the entire field including
1921           the "halo" region
1922        2) zeroing needs to be done *before* reading pickup info
1923           and the pickup call might or might not happen in any
1924           particular run
1925      - this needs an overhaul for R2
1926    o cleanup verification/*/code/GMREDI_OPTIONS.h
1927    o cleanup testreport
1928    
1929    checkpoint51o_post
1930    o bringing AD-related verif's up to date with genmake2
1931      - carbon/
1932      - global_ocean.90x40x15/
1933      - hs.94.1x64x5/
1934      - (front_relax/ )
1935    o (more) consistent directory structure for AD-related verif.'s
1936    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1937    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1938    o bug fix in find_alpha.F for MDJWF:
1939      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1940        change rho -> rho-rhoConst
1941      - replace call find_rho to find_rhonum
1942    o initialisation of rFlx extended to full array (required by TAF)
1943      and shifted to thermodynamics
1944    o removed PTRACERS.h in ptracers routine
1945    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1946    o Correcting initialisations for fVerU, fVerV.
1947    o helping TAF to recognize dependency on kUp for
1948      fVerU, fVerV
1949    o Replacing delZ by delR in pkg/ctrl/
1950    checkpoint51o_pre
1951    
1952    o undid all of cp51 pending some cleanups and discussion
1953    o added the [#include "AD_CONFIG.h"] statement to all files that need
1954       it for adjoint/tl #defines
1955     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1956     o removed tools/genmake since it no longer works
1957    
1958    checkpoint51n_post
1959    o modifications to make FREEZE flux visible to pkg/kpp
1960      - moved surfaceTendencyTice from pkg/seaice to main code
1961      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1962      - subroutine FREEZE now limits only surface temperature
1963        (this means new output.txt for global_ocean.90x40x15,
1964         global_ocean.cs32x15, and global_with_exf)
1965    o added surface flux output variables to TIMEAVE_STATVARS
1966    
1967    checkpoint51n_pre
1968    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1969    o added [#include "AD_CONFIG.h"] to all files that use the following
1970      defines:
1971      - ALLOW_ADJOINT_RUN
1972      - ALLOW_TANGENTLINEAR_RUN
1973      - ALLOW_ECCO_OPTIMIZATION
1974    
1975    checkpoint51m_post
1976    o incorporating changes to get TAMC/TAF working in genmake2
1977      - added new TAMC/TAF targets to the Makefile
1978      - various cleanups related to package handling
1979      - these changes should have no impact on the forward model
1980    
1981    checkpoint51l_post
1982    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1983     - faster algorithm for cal_addtime.F
1984     - higher precision arithmetic, where needed
1985     - pkg/exf *startdate variables changed from calendar date to
1986       model integration time
1987    
1988    checkpoint51l_pre
1989    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1990    o enable to apply restoring on S & T only in a latitude band.
1991    o update output (external_forcing_surf modif. change truncation errors)
1992       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1993    
1994    checkpoint51k_post
1995    o change default to: useNHMTerms=.FALSE.
1996     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1997       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1998     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1999        exp1, ideal_2D_oce
2000     - change data file of oceanic exp (leave the results unchanged for now)
2001       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2002    o set gravitySign automatically according to the vertical coordinate used
2003      (and change sign: back to "logical" value: +1 when R increases downward)
2004    o added an include barrier to the default CPP_OPTIONS.h and
2005      removed the #include "PACKAGES_CONFIG.h" from it
2006    o fix a bug in mom_fluxform (from chk51j_post)
2007    
2008    checkpoint51j_post
2009    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2010    o adjusted some flow directives (dynamics, thermodynamics)
2011    o added cubed-sphere case to test cost function
2012    o heckpoint_lev?_directives.h now include
2013      pkg-specific directives, whenever those are enabled.
2014    o Moving pkg-specific flow directives to corresponding pkg
2015      Moving pkg-specific differentiation list to corresponding pkg
2016      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2017      ---> conventions are
2018           - pkg_ad.flow
2019           - pkg_ad_diff.list
2020           - pkg_ad_check_lev?_dir.h
2021    
2022    checkpoint51i_post
2023    o merge of the branch-genmake2
2024      - knowingly breaks the older genmake
2025      - automatic generation of all ALLOW_${PKG_NAME} defines
2026      - new testreport supersedes older testscript
2027    o large number of package inclusion and header cleanups
2028    checkpoint51i_pre
2029    
2030    o new output for adjoin of global ocean vector invariant
2031    o fix for checkpoint of thermodynamic seaice and bulk_force
2032    o Steph gchem various cleanups
2033    
2034    checkpoint 51h_pre
2035    o fixed some single quotes
2036    o modify gchem pkg to be more versatile
2037    o modifications to clean up dic pkg
2038    o add pkg/cfc
2039    
2040    checkpoint51g_post
2041    o provide links for ARPACK and ADM*TLM
2042    o start removing verification/vero/
2043    o update AD-related stuff
2044      (in particular some IF-statements in model/src/ routines)
2045    o adding to verification/global_ocean.90x40x15/ adjoint of
2046      vector invariant setup
2047    
2048    checkpoint51f_post
2049    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2050    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2051      of tracer Green's fucntions for ocean inversion project.
2052    
2053    checkpoint51f_pre
2054    o Added on-the-fly spatial interpolation capability
2055        "USE_EXF_INTERPOLATION" to pkg/exf.
2056      - This is a temporary Cartesian-grid hack until
2057        the super-duper ESMF coupler becomes available.
2058      - See verification/global_with_exf/README for usage example.
2059      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2060        flags and modified pkg/seaice accordingly.
2061    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2062        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2063        non-local transport term.
2064    
2065    checkpoint51e_post
2066    o pkg/mom_vecinv:
2067      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2068      - add time-ave diagnostic of vorticity advection.
2069    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2070    o atmospheric geopotential: - include water vapor effect;
2071                                - use p^kappa in p* scaling.
2072    o land pkg: read initial state from files.
2073    o AIM : add stratospheric drag in the upper level
2074    
2075    checkpoint51d_post
2076    o change function ILNBLNK (=> last non-blank char.) to return zero
2077      (instead of the string length) when the string. char is empty
2078    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2079    o modif's to restore TAMC compatibility
2080      - avoid "_d" constructs in PARAMETER declarations
2081      - avoid interrupting lines by comment lines
2082    o Use cluster local disks for purely local I/O
2083      vs. globally visible disks needed for ctrl stuff
2084      (merged from ecco-branch)
2085      - new active_file_loc... and mdsio_..._loc routines
2086      - affected packages: autodiff, ctrl, grdchk, mdsio
2087    
2088    checkpoint51c_post
2089    o introducing integer flag debugLevel
2090      - debLevZero: suppress all output
2091      - debLevA: standard
2092      - debLevB: equivalent to current debugMode=.TRUE.
2093    o introducing pathname variable mdsioLocalDir for mdsio
2094      that can be specified at runtime
2095      (relevant for cluster I/O to local disk)
2096    `
2097    >>>checkpoint51b_post
2098    adjoint of ptracers
2099    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2100    o extended state in checkpoint_lev?, etc.
2101    o alternative ctrl/cost with tr1 or ptracer
2102    o new comlev1_bibj_ptracers
2103    o new ptracers.flow
2104    o made ptracers_forcing same as external_forcing_s
2105    o added verification for adjoint with ptracers
2106      - adm. grdchk fail so far
2107      - tlm. grdchk OK
2108      - checked tapelev/comlev recomputations: OK
2109    <<<checkpoint51b_pre
2110    
2111    checkpoint51a_post
2112    o added code for biogeochemistry package
2113      - new pkgs: dic, gchem
2114      - new subroutine in ptracers
2115    o modify code for biogeo packages
2116      - in model/src and pkg/ptracers
2117    
2118    checkpoint51
2119    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2120      - autodiff, ctrl, exf, grdchk, seaice
2121      kept separate packages
2122      - cost, ecco, obcs
2123    o updating verification/internal_wave, verification/lab_sea
2124      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2125    
2126    checkpoint50i_post
2127    o Preparing next differentiable checkpoint and sync
2128      of MAIN vs. ecco-branch
2129      - 1st step: this one is differentiable
2130      - 2nd step: next(! not this) checkpoint will have updated packages
2131                  from ecco-branch)
2132    
2133    checkpoint50h_post
2134    o new package "land": provide surface BC for AIM.
2135    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2136    o AIM: use true log-P extrapolation for near surface temp (= as in
2137        F.Molteni paper) ; update aim.5l_cs output.
2138    o New variable in PARM03 for more flexible pickups
2139    o somewhat cleaned package initialisation sequence for
2140      ctrl/ cost/ ecco/ in packages_... routines
2141    
2142    checkpoint50g_post
2143    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2144      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2145      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2146        made the default because of faster convergence than ADI
2147    
2148    checkpoint50f_post
2149    o exf totally restructured
2150      - replaced all exf_set_ routines by one generic exf_set_gen.F
2151        and made sure it's still differentiable
2152      - split exf_getffields.F into new exf_bulkformulae.F
2153      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2154      - updated adjoint/makefile and relevant verif. accordingly
2155    
2156    checkpoint50f_pre
2157     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2158          + change Evap over land. (update aim.5l_cs output)
2159     o added missing .cvsignores and made uniform across expts
2160     o changed configuration of tidal_basin_2d expt
2161     o added pkg/debug functions for tracing code in fatal crashes
2162     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2163     o new fn in pkg/monitor to stop model if solution grows too big
2164     o removed lots of single quotes from comments
2165    
2166    checkpoint50e_post
2167    o make KPP work with PTRACERS
2168     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2169       nearly a copy of kpp_transport_s
2170     - there is no analogue to SurfaceTendencyS, so I have to use
2171       gPtr(of the surface layer) instead
2172    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2173    checkpoint50e_pre
2174    
2175    checkpoint50d_post
2176    o change kpp output from multiple-record state files to single-record state
2177      files analogous to write_state.F
2178    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2179      analogous to the cg2d-related output.
2180    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2181      so that writing to internal file fn (with length 512) fails.
2182    checkpoint50d_pre
2183    
2184    checkpoint50c_post
2185    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2186    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2187    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2188    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2189    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2190    
2191    checkpoint50c_pre
2192    Merging from release1_p13:
2193    o bug fix for pkg/seaice dynamic solver
2194    o Added SEAICE_initialHEFF to pkg/seaice
2195    
2196    checkpoint50b_post
2197    o store u*,v* in gU,V instead of in guNm1,gvNm1
2198    o in order to put the momForcing out of the Adams-Bashforth:
2199      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2200      to timestep.F
2201    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2202    o re-generate output for highly sensitive test-exp:
2203       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2204    
2205    checkpoint50b_pre
2206    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2207    o corrected CPP option mismatch in exf_Bulk... functions for case
2208      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2209    
2210    checkpoint50a_post
2211    o Bug fix for merging between c50 and KPP.
2212      ikey was passed from thermodynamics to kpp_calc via
2213      common block rather than being recomputed in kpp_calc,
2214      in contradiction with new key itdkey.
2215      New key ikppkey created, and tamc.h headers updated.
2216    
2217    checkpoint50
2218    - 2nd step of merge with ecco-branch:
2219      merge changes in ecco-branch back into main trunk
2220    - bug fix in find_alpha
2221    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2222    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2223    - merged some sliced AD support routines
2224    
2225    checkpoint49
2226    merged from ecco-branch:
2227    o exf:
2228      - Enable initialisation of forcing fields to constant
2229        (runtime) values.
2230      - in exf_getffields.F
2231        Reduce i-/j-loop to interior domain, discarding overlaps.
2232        That also fixes wrong TAF-key computations for key_1, key_2
2233        with bulf formulae.
2234      - exf_init.F modify #ifdef for exf_init_evap
2235      - exf_getffieldrec.F, ctrl_getrec.F
2236        The following INT-usages are not safe:
2237          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2238          fldcount = int(fldsecs/fldperiod) + 1
2239        and were modified.
2240    o autodiff: checkpoint_lev...
2241      - updated storing for bulk formulae (some arrays were missing)
2242      - added state for seaice package
2243      - synchronized with main branch
2244    o DIVA:
2245      Modif.s in
2246      - the_main_loop.F
2247      - the_model_main.F
2248      and added cost_final_restore.F cost_final_store.F
2249      o With these changes, it is possible to fully separate
2250        the first forward run to compute the cost function (mdthe_main_loop)
2251        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2252        into separate model executions.
2253        This enables better tuning of DIVA to given queue sizes.
2254      o Loss of cost function value in consecutive DIVA runs is
2255        fixed by storing to 'costfinal' file.
2256      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2257        beginning/end of adjoint integration is accounted for.
2258      The current changes apply to TAF-1.4.26.
2259      TAF has one remaining bug, requiring one manual change
2260      (see MITgcm manual).
2261    o cal: synchronized between MAIN and ecco-branch
2262    
2263    checkpoint48i_post
2264    o Changes to restore differentiability of code w.r.t. previous tag
2265      (mostly adding new routines to make list and replacing
2266      pressure by totPhiHyd).
2267    o Updated and merged grdchk package
2268      - has both ADM and TLM checks
2269      - works for single- and multi-proc.
2270      - output cleaned
2271      - worked successfully for parallel DIVA
2272    o genmake:
2273      - Adding -platform=SP4
2274      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2275    o Modif. for DIVA:
2276      ctrl_unpack should not be called in intermediate DIVA interval.
2277      (similar thing would apply for active files such as
2278      tbar, sbar, psbar, which should not be reinitialised;
2279      only relevant for ecco-branch)
2280    
2281    checkpoint48h_post
2282    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2283    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2284    o Added SEAICE_initialHEFF to pkg/seaice
2285    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2286    
2287    checkpoint48g_post
2288    --- EOS:
2289    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2290      store total Potential in totPhyHyd for diagnostics & EOS.
2291    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2292    --- Pressure/geopotential gradient:
2293    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2294    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2295      ( changes results of global_ocean_pressure )
2296    o NLFS + z-coord.: add eta*Rho' contribution.
2297    o accurate phiHyd when using interface-W at the middle between 2 centers
2298     ( changes results of ideal_2D_oce )
2299    o includes r* 2nd term in potential gradient.
2300    
2301    checkpoint48f_post
2302    Merging from release1_p12:
2303    o Modifications for using pkg/exf with pkg/seaice
2304      - improved description of the various forcing configurations
2305      - added basic radiation bulk formulae to pkg/exf
2306      - units/sign fix for evap computation in exf_getffields.F
2307      - updated verification/global_with_exf/results/output.txt
2308    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2309      (SBO) core products, including oceanic mass, center-of-mass,
2310      angular, and bottom pressure (see pkg/sbo/README.sbo).
2311    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2312      to avoid negative values in shallow regions.
2313      - updated verification/natl_box/results/output.txt
2314      - updated verification/lab_sea/results/output.txt
2315    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2316    o Added useSingleCpuIO option (see PARAMS.h).
2317    o Updated useSingleCpuIO option in mdsio_writefield.F to
2318      work with multi-field files, e.g., for single-file pickup.
2319    o pkg/seaice:
2320      - bug fix in growth.F: QNET for no shortwave case
2321      - added HeffFile for specifying initial sea-ice thickness
2322      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2323    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2324      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2325    o pkg/seaice:
2326      - adjoint-friendly modifications
2327      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2328    
2329    checkpoint48e_post
2330    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2331    o dynamics: change definition of computational domain & adapt mom_fluxform
2332      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2333    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2334        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2335        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2336        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2337        inverted_barometer solid-body.cs-32x32x1
2338      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2339    
2340    checkpoint48d_post
2341    o in preparation for r*:
2342     a) use pre-computed gradient of hydrostatic potential:
2343        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2344     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2345        => affects results of glob_oce_pressure (different truncation error)  
2346      update output.txt of ideal_2D_oce & global_ocean_pressure
2347    
2348    checkpoint48d_pre
2349    o in preparation for r*:
2350      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2351      pass the 2 comp. of the grad. as arguments to momentum S/R.
2352      but for the moment, only used if it does not change the results.
2353    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2354    
2355    checkpoint48c_post
2356    Modifications in treatment of initial flux forcing controls
2357    to avoid extra storing of flux fields.
2358    
2359    checkpoint48c_pre
2360    o Added tidal_basin_2d experiment (currently 1D!)
2361    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2362    
2363    checkpoint48b_post
2364    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2365     (modification to pressure gradient not yet implemented)
2366    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2367      (for U & V) that are used for vertical advection of momentum.
2368    
2369    checkpoint48a_post
2370    o In preparation for r*, use temp. array to compute vertical transport
2371       in flux-form momentum pkg. => change results of few test-exp.
2372      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2373                        lab_sea, natl_box & plume_on_slope
2374    
2375    checkpoint48
2376    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2377    
2378    checkpoint47j_post
2379    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2380    o moved adexch from forward_step to addummy_in_stepping
2381    o added exch in ctrl_map_...
2382    o aveFreq.=0. at end of cost_final to avoid overwrite in
2383      reverse checkpointing loop
2384    o Yet more changes in gmredi:
2385      * adgmredi_calc_tensor
2386        avoiding all recomputation of gmredi_slope_limit
2387      * adgmredi_x/y/rtransport
2388        added flag for excessive storing to avoid recomp. of
2389        u/v/rtans, dTdx/y/z
2390        -> this is not really necessary and very memory-consuming
2391      * adgmredi_slope_psi:
2392        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2393      * gmredi_slope_limit
2394        re-activated full calculation of taperfct for case 'ac02'
2395    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2396    
2397    checkpoint47i_post
2398    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2399    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2400      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2401    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2402    o gmredi: fix few bugs.
2403    
2404    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2405    This will be a good checkpoint to plug into the ecco-branch.
2406    o few modif.'s to get latest version adjointed
2407      (mainly kick out code in ini_linear_phisurf)
2408    o modif's to run adjoint with exactConserv
2409    o case GM_BOLUS_ADVEC should be cleaned
2410      S/R gmredi_slope_psi should be cleaned
2411    o verification/carbon now has exactConserv=.TRUE.
2412    
2413    checkpoint47g_post
2414    o time-average AIM output: becomes independent from statvars time-average
2415      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2416    o After TAF bug fix:
2417      Tested adjoint of gmredi package.
2418      Tests were done with checkpoint47 rather than with latest
2419      checkpoint47f_post since the latter is broken for the adjoint
2420      verification/carbon/ contains both ADM and TLM gradient checks.
2421    Here they are, before they get changed/lost/stolen.
2422    Mostly modif.'s to fix numerical sensitivities.
2423    Gradient checks OK for
2424    - GM_taper_scheme:
2425      * clipping
2426      * ac02
2427      * linear
2428      * glw91
2429      * dm95
2430      * ldd97
2431    - GMREDI_OPTIONS:
2432      * GM_VISBECK_VARIABLE_K
2433      * GM_NON_UNITY_DIAGONAL
2434      * GM_EXTRA_DIAGONAL
2435      * GM_BOLUS_ADVEC
2436    in conjunction with data.gmredi parameters to be checked in
2437    in a few minutes under verification/carbon/code/
2438    
2439    checkpoint47f_post
2440    Merging from release1_p10:
2441    o modifications for using pkg/exf with pkg/seaice
2442      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2443        and SEAICE_EXTERNAL_FLUXES
2444      - pkg/exf CPP options EXF_READ_EVAP and
2445        EXF_NO_BULK_COMPUTATIONS
2446      - usage examples are Experiments 8 and 9 in
2447        verification/lab_sea/README
2448      - verification/lab_sea default experiment now uses
2449        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2450    
2451    checkpoint47e_post
2452    o created a tag prior to creating a branch
2453    
2454    checkpoint47d_post
2455    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2456      at the bottom boundary had an erroneous half slip boundary condition
2457    o added bottom drag and no slip boundary condition capabilities to
2458      oceanic pressure coordinates code
2459    o added new verification experiment global_ocean_pressure, this experiment is
2460      also described in the tutorial section of the manual
2461    checkpoint47d_pre
2462    
2463    checkpoint47c_post
2464    o Added a verification experiment for a global cubed-sphere ocean run
2465      -  verification/global_ocean.cubed32x32x30
2466      -  uses pkg/therm_seaice and pkg/bulk_forcing
2467    
2468    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2469    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2470      when using P-coordinate; only implemented for atmospheric config.
2471    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2472      NOTES: requires option NONLIN_FRSURF to be "#define".
2473    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2474    
2475    checkpoint47b_post
2476    Merging from release1_p9:
2477    o pkg/seaice
2478      - removed GOTO's and added taf directives
2479      - double precision constants to reduce the g77 (Linux)
2480        to F77 (SGI) differences reported in release1_p8
2481    o tools/genmake
2482      - added SGI options
2483    o verification/testscript
2484      - updated to that of checkpoint47a_post
2485    o verification/global_ocean.90x40x15/input/eedata
2486      - modified for SGI f77 compatibility
2487    o verification/lab_sea
2488      - added description of sea-ice model
2489      - added missing matlab routines
2490      - added test of thermodynamics parallelization
2491    
2492    checkpoint47a_post
2493    o new pkg: aim_v23
2494     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2495       for now, keep the same surface forcing as before.
2496     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2497     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2498     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2499    o add diagnostic of surface correction term in monitor output
2500    
2501    o bulk_force and therm_seaice
2502    - Two packages:  bulk_force (Bulk forcing)
2503      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2504    - Earlier integration from Stephaine Dutkiewicz
2505      and Patrick Heimbach.
2506    - Two ifdef statements for compile time,
2507       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2508    
2509    checkpoint47
2510    differentiable version of checkpoint46n_post
2511    o bug fix in quasihydrostaticterms
2512    o * "clean" adjoint code (in terms of extensive recomputations)
2513        can now be obtained for all GMREDI options (i.e. for
2514        - GM_VISBECK_VARIABLE_K
2515        - GM_NON_UNITY_DIAGONAL
2516        - GM_EXTRA_DIAGONAL
2517        - GM_BOLUS_ADVEC )
2518      * However, wrong gradient check problem remains unsolved.
2519      * New CPP options have been introduced for different
2520        tapering schemes
2521    o external_fields_load now part of differentiation list
2522    o pressure needs multiple storing;
2523      would be nice to have store_pressure at beginning or
2524      end of forward_step, e.g. by having phiHyd global (5-dim.)
2525      (NB: pressure is needed for certain cases in find_rho,
2526      which is also invoked through convective_adjustment).
2527    o recomputations in find_rho for cases
2528     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2529    o #define ATMOSPHERIC_LOADING should be differentiable
2530    o ini_forcing shifted to begining of initialise_varia
2531    o Incorporating QNVS line search routines into MITgcm
2532      (this is separate code, and therefore not under pkg)
2533      lsopt/, optim/
2534    o Updated verification/carbon/
2535      - #define GM_VISBECK_VARIABLE_K
2536      - GM_taper_scheme    = 'ldd97'    
2537    
2538    checkpoint46n_post
2539    Merging from release1_p8:
2540    o verification/natl_box:
2541      updating new external_fields_load routine
2542    o New package: pkg/seaice
2543      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2544      The sea-ice code is based on Hibler (1979-1980).
2545      Two sea-ice dynamic solvers, ADI and LSR, are included.
2546      In addition to computing prognostic sea-ice variables and diagnosing
2547      the forcing/external data fields that drive the ocean model,
2548      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2549      The implied surface heat flux is then stored in variable
2550      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2551      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2552      non-local transport term.  Because this call precedes model
2553      thermodynamics, temperature under sea-ice may not be "exactly" at
2554      the freezing point by the time theta is dumped or time-averaged.
2555      N.B.: fairly large differences in accuracy occur across
2556            different platforms/compilers; comparison between
2557            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2558            generated output gives:
2559       T           S           U           V
2560      C D M    c        m  s        m  s        m  s        m  s
2561      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2562      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2563      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2564    
2565      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2566    o GAD:
2567      - generated new common blocks to account for call of
2568        same gad routines with differing traceridentities
2569        (needed to modify tracerIdentity indices in GAD.h)
2570      - generated separate common blocks for case useCubedSphereExchange
2571        (Department of Futurology)
2572      - parameter lists to gmredi_?transport: added tracerIdentity
2573      - added new key indices to tamc.h
2574    o external_fields_load:
2575      - added this routine to TAF list
2576      - needed to make some common blocks global and additional storing
2577        along the same lines as exf package (checkpoint_lev?_directives.h)
2578    o exf:
2579      updated external forcing package
2580      - bug fixes carried over from ecco-branch
2581        (missing OBCS_OPTIONS.h in two routines)
2582      - enable easy to use "no forcing".
2583      - added exf I/O for atmospheric loading
2584      - added exf I/O for runoff data
2585      - transfered scaling between exf <-> MITgcm to exf namelist
2586    o Adding new verification experiment global_with_exf.
2587      This verification experiment is almost identical to the
2588      global_ocean.90x40x15 experiment, except that it uses
2589      the exf (and cal) package instead of the
2590      external_fields_load routine (cf README file).
2591    
2592    checkpoint46m_post
2593    o modified testscript to return -- when there are no lines of "%MON" output
2594    o added new flag "quasiHydrostatic" for QH mode
2595      and new routine quasihydrostaticterms()
2596    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2597      New routine: mom_u_coriolis_nh()
2598    o fixed sign of non-hydrostatic metric terms in u and v equations.
2599      Depend on correct sign of gravitySign.
2600    o added work.pc* to .cvsignore in aim directories using ifc
2601    o introduced flag for controllin non-hydrostatic metric terms
2602    o removed gravitySign from PARM04
2603    o switched to g77/ifc from pgf77 in aim experiments
2604    
2605    checkpoint46l_post
2606    o made convective adjustment work with pressure coordinates:
2607     - changed the direction of k-loop in convective_adjustment.F for the
2608       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2609     - adjusted the reference pressure k-index in convective_adjustment.F
2610     - adjusted the convection condition in convect.F (in analogy to
2611       calc_ivdc.F)
2612     - convective_adjustment no longer computes anything on the halos
2613     - removed the warnings about negative salinity from find_rho.F and
2614       find_alpha.F; instead the new routine look_for_neg_salinity, called
2615       at the beginning of find_rho, find_alpha, and find_beta, does a
2616       check of the entire slice, if CPP-option
2617       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2618    checkpoint46l_pre
2619    
2620    checkpoint46k_post
2621    o fixed the verification/global_ocean.90x40x15 experiment:
2622     - new bathymetry (the world according to A., JMC, and M.)
2623     - new initial fields and forcing fields (*.bin files)
2624     - new POLY3.COEFFS (for the next release one should switch to a full
2625       equation of state: JMD95P or MDJWF)
2626     - fixed several errors and redundancies in the data file
2627     - experiment uses looped cells
2628     - added matlab directory with diagnostic scripts for plotting of output
2629    
2630    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2631     - read AIM physics parameters from a file (data.aimphys)
2632     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2633    
2634    checkpoint46j_post
2635    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2636    o move wVel computation at the end of the time step, in S/R integr_continuity
2637    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2638    o update timeave pkg for wVel diagnostic.
2639    checkpoint46j_pre
2640    
2641    checkpoint46i_post
2642    o Clean up AIM package (and keep the results unchanged):
2643      include CPP_OPTION and use IMPLICT NONE in all routines ;
2644      declare all the variables _RL ; use _d 0 for all numerical constants.
2645      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2646    
2647    checkpoint46h_post
2648    o cleaned up the use of rhoNil and rhoConst.
2649      - rhoNil should only appear in the LINEAR equation of state, everywhere
2650        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2651        and the dynamical equations are all divided by rhoConst
2652    o introduced new parameter rhoConstFresh, a reference density of fresh
2653      water, to remove the fresh water flux's dependence on rhoNil. The default
2654      value is 999.8 kg/m^3
2655    o cleanup up external_forcing.F and external_forcing_surf.F
2656      - can now be used by both OCEANIC and OCEANICP
2657    checkpoint46h_pre
2658    
2659     Added code to convert surface volume flux (fresh water) into
2660     a mass flux when using P coordinates in the ocean (OCEANICP).
2661     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2662    
2663    checkpoint46g_post
2664    o Include a new diagnostic variable phiHydLow for the ocean model
2665      - in z-coordinates, it is the bottom pressure anomaly
2666      - in p-coordinates, it is the sea surface elevation
2667      - in both cases, these variable have global drift, reflecting the mass
2668        drift in z-coordinates and the volume drift in p-coordinates
2669      - included time averaging for phiHydLow, be aware of the drift!
2670    o depth-dependent computation of Bo_surf for pressure coordinates
2671      in the ocean (buoyancyRelation='OCEANICP')
2672      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2673        Theta, Salinity, and Pressure in the parameter list. This routine is
2674        presently contained in find_rho.F. This routine does not give the
2675        correct density for 'POLY3', which would be a z-dependent reference
2676        density.
2677    o cleaned up find_rho
2678      - removed obsolete 'eqn' from the parameter list.
2679    o added two new verification experiments: gop and goz
2680      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2681    checkpoint46g_pre
2682    
2683    checkpoint46f_post
2684    o Enable tangent linear (forward mode) gradient checks:
2685      - extended active file handling to g_... files
2686      - added TANGENT_SIMULATION to theSimulationMode
2687      - extended grdchk package accordingly
2688    o added tangent linear setup in verification/carbon/code_ftl
2689    o added adjoint setup in verification/front_relax/code_ad
2690    
2691    checkpoint46e_post
2692    o Added new equation of state -> MDJWF
2693      - EOS of McDougall et al., 2002, JAOT, submitted
2694      - caveat: the equation of state is only valid for a smaller (more
2695        realistic?) range of values than JMD95P/Z and UNESCO
2696      - added masks to the calculation of pressure in store_pressure
2697      - added more check values for density in check_eos (ini_eos.F), some of
2698        the old check values are out of the range of the MDJWF-eos, so don't
2699        expect perfect matches for those
2700    checkpoint46e_pre
2701    
2702    checkpoint46d_post
2703    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2704      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2705      case of pressure coordinates. eosType='JMD95Z' in
2706      combination with buoyancyRelation='OCEANICP' now causes an error.
2707    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2708      in find_alpha/beta.
2709    checkpoint46d_pre
2710    
2711    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2712      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2713    
2714    checkpoint46c_post
2715    o Changes necessary for ocean in p-coordinates
2716     -  Added new buoyancy relation = 'OCEANICP'
2717     -  Added new parameters = gravitySign (this used to be contained inside
2718        the factor dRdZ which I added when we first switched to R coordinates).
2719     X GM/Redi is not compatible (yet)
2720     X bottom drag and no-slip need to be debugged.
2721    checkpoint46c_pre
2722    
2723    checkpoint46b_post
2724    o Added new equation of state -> JMD95Z and JMD95P
2725      - EOS of Jackett and McDougall, 1995, JAOT
2726      - moved all EOS parameters into EOS.h
2727      - new routines ini_eos.F, store_pressure.F
2728    o Added UNESCO EOS, but not recommended because it requires
2729      in-situ temperature (see JMD95)
2730    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2731      unesco.f to be used with POLY3
2732    checkpoint46b_pre
2733    
2734    checkpoint46a_post
2735    o Added (atmospheric) pressure loading
2736      - new field in FFIELDS.h, etc...
2737      - new cpp flag ATMOSPHERIC_LOADING
2738    o Changed hFacC to _hFacC in calc_phi_hyd.F
2739    o Added SHORTWAVE_HEATING to some files for consistency
2740    checkpoint46a_pre
2741    
2742    checkpoint46
2743    further merges from release1_p5
2744    o new ctrl package
2745      - adopted from ECCO environment to enable optimization
2746      - added Eliassen Palm fluxes to controls
2747    o added Eliassen Palm flux controls to gradient check package
2748    o cost package
2749      - Compatible with new ctrl package
2750      - added Eliassen Palm cost hooks
2751      - modif's of existing cost functions
2752    o Adjoint-related bug fixes in kpp:
2753      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2754      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2755    o autodiff package
2756      - flow directives:
2757        + new for S/R do_the_model_io
2758        + enhanced for S/R checkpoint
2759        + new gmredi.flow
2760      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2761        disable adcommon.h/g_common.h by default.
2762      - fixed problem for adjoint of global_max
2763    o modified verification/carbon/
2764    o New setup for adjoint of global_ocean
2765    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2766    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2767    o incorporated hooks for sponge layer code (external_forcing.F)
2768    
2769    checkpoint45d_post
2770    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2771    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2772      (affects plume_on_slope "cg2d" output)
2773    o add new parameter deltaTfreesurf for free-surface time stepping
2774    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2775    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2776    o change phiMin in exp1 (to agree with documentation)
2777    o add new flags:
2778     - T,S forcing inside/outside Adams-Bashforth
2779     - turn off temp,salt advection and/or forcing
2780     - for each tracer, define internal flag for multiDimAdvection & A-B
2781    o monitor: change definition of KE to check conservation of Energy
2782    
2783    checkpoint45c_post
2784    o Removed f90 comments ("!")
2785    o Modified initialisations to enable exf package for MITgcm
2786      (without invoking ECCO_PACKAGE).
2787    o modifications to gradient check package (Martin Losch)
2788      - enable centered differences
2789      - modified format of standard output
2790    
2791    checkpoint45b_post
2792    o cleaned exchange calls in cg2d
2793    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2794    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2795      to configure barotropic setup (Martin Losch)
2796    o moved some initialisations within bi,bj loop in dynamics
2797      (TAF flow dependency)
2798    o in initialise_varia, moved call packages_init_variables
2799      before convective_adjustment_init
2800      (corresponding adjustment of TAF tape initialisation).
2801    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2802    
2803    checkpoint45a_post
2804    o compute Rho over the whole domain (extend iMin,jMin indices)
2805    o specific exchange for X-slice domain (case Ny=1)
2806    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2807    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2808    
2809    checkpoint44h_post = checkpoint45
2810    o Fix to restore differentiability:
2811      place at which packages_init_variables is called in
2812      initialise_varia is crucial for reverse control flow.
2813    o modifications in GMRedi to enable stable adjoint
2814      (corresponding modif's in thermodynamics, dynamics)
2815    o added missing hook for sponge layer code in external_forcing
2816    o modified test cost functions
2817    o storing in gad_advection (plus removal of write(0,*)!
2818    o missing headers TR1.h added in convective_adjustment routines
2819    o errorMessageUnit set non-equal zero in eeboot
2820      (conflict on some platforms, e.g. IBM SP3)
2821    o modified carbon verif.
2822    
2823    checkpoint44h_pre
2824    o vertical grid option: allow to put the Interface at the middle between
2825      2 cell-centers ; replace delZ in pkg/kpp by drF.
2826    o GM Advective form: Tracers are advected using the residual transport (=
2827      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2828    
2829    checkpoint44g_post
2830    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2831      results) ; ifdef missing in thermodynamics.F
2832    
2833    checkpoint44f_pre,checkpoint44f_post
2834    o added PTRACERS package
2835      This allows an arbitrary number of passive tracers to be integrated
2836      forward simultaneously with the dynamicaly model.
2837      + Implemented so far:
2838        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2839        - I/O and checkpointing
2840        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2841      + Not implemented so far:
2842        - KPP
2843        - OBCS
2844      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2845        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2846        line in data.pkg.
2847      + This package is disabled by default since it increases storage.
2848    
2849    
2850    o testscript: added -cleanup option
2851    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2852                 b) enable to filter 2D fields.
2853    
2854    checkpoint44e_pre,post
2855    o re-wrote convective adjustment to use pre-calculated weights
2856      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2857      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2858      Original calls to convect() still in place.
2859    
2860    chkpt44d_pre,post
2861    o added missing EXCLUDE_MONITOR flags
2862    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2863      (incompatible typ in MIN/MAX expressions caused problems
2864      on IBM SP3)
2865    o in genmake added variable MAKEDEPEND
2866      plus resetting for case SunOS
2867    o added timer_stats.c routine for IBM SP3
2868    o removed variables in dynamics
2869    !!! I forgot to create tag chkpt44d_pre !!!
2870    !!! But chkpt44d_pre = chkpt44c_post    !!!
2871    
2872    o real fresh water flux implemented with non-linear free-surface.
2873    
2874    chkpt44c_pre,post
2875    o few fix (mask in shap_s2, EmPmR in external_field_load,
2876      USE_NATURAL_BCS in solve_for_P);
2877    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2878    
2879    checkpoint44b_pre/_post
2880    o merge of relevant stuff from the ecco-branch:
2881      - genmake: removed $S64 overwrite for case SunOS
2882      - pkg/exf: update and corrections for field swapping and obcs
2883      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2884                  harmonized between ECCO and MITgcm
2885      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2886                      updated checkpointing_lev... lists for obcs
2887      - model/src: minor changes in forward_step, plot_field
2888                   added directive for divided adjoint in the_main_loop
2889      - pkg/mdsio: added mdsio_gl_slice
2890    
2891    o check parameters & config (chkpt44a_pre,post)
2892    o OBC and NonLin_FrSurf.
2893    
2894    checkpoint44
2895    o fix bug in mom_vi_del2uv
2896    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2897    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2898    o update AIM experiments (NCEP input files)
2899    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2900    o added some stuff for AD
2901    
2902    checkpoint43
2903    o added two new advection tests
2904    o added global 4x4 degree ocean test
2905    o added test of H&S94 with free surface on cube
2906    o some final mods for gradient check, adjoint,...
2907    
2908    checkpoint42
2909      Fixed AD-related problems:
2910    o Store directives up-to-date with re-arranged Adams-Bashforth
2911      (mainly thermodynamics.F)
2912    o New store directives for multi-dim. advection schemes
2913      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2914      * new common block and key passkey
2915      (mainly gad_advection.F)
2916    o Modified store directives for split of dynamics/thermodynamics
2917      for the case ALLOW_KPP
2918    o Cleaned argument list for timestep_tracer.F
2919    
2920    checkpoint41
2921    o re-formatted/added comments in prologues of key subroutines
2922      to work with protex
2923    
2924    checkpoint40
2925    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2926    o added FLT (floats) package from Arne along with demo. experiment
2927    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2928      implementation of forward-in-time forcing terms
2929    o more mods for non-linear free-surface including new variable
2930    o modified multi-dim method to work on cube
2931    o bug fix in KPP (from DM)
2932    
2933    checkpoint40pre9
2934    o added DST advection schemes
2935    o fix MPI bug on SGI's
2936    o modifications for non-linear free-surface
2937    o fixed conditionals for fixed flow/passive tracer only mode
2938    o added tension/strain form of stress tensor
2939    o changes to commenting of arguments for TAF/TAMC
2940    o added/updated many matlab scripts
2941    o added multi-dimensional advection method for tracers
2942      
2943    checkpoint40pre8
2944    o new package rw/
2945      Added method for dumping intermediate local arrays:
2946      mdsio_writetile - same as mdsio_writefield except works from inside
2947                        bi,bj loop
2948      mdsio_writelocal - same as mdsio_writetile except works for local
2949                         arrays
2950      write_local_r? - higher-level wrapper for mdsio_writelocal
2951      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2952      Example given at end of mom_vecinv.F that dumps some local arrays.
2953    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2954      control flux-form versus vector invariant code.
2955      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2956      or genmake -DISABLE ...
2957    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2958      (additional storing is now needed for case vecinv;
2959      currently nothing implemented to switch this storing off
2960      in case fluxform is used since no CPP flag available).
2961    
2962    checkpoint40pre7
2963    o bug fix in dynamics.F
2964      calc_viscosity called before k=1,Nr loop.
2965    o added some #ifdef's ALLOW_PASSIVE_TRACER
2966    o cleaned initialisations in ctrl_map_ini
2967      related to TAF
2968    
2969    checkpoint40pre6
2970    o split dynamics into thermodynamics & dynamics
2971    o corresponding split of calc_diffusivity into
2972      calc_diffusivity, calc_viscosity
2973      (kpp_calc_diff, kpp_calc_visc).
2974    o Added diffkr, kapgm to control variables
2975    o bug fix in gmredi_slope_limit for ldd97
2976    
2977    checkpoint40pre5
2978    o proper initialization of Adams-Bashforth time stepping
2979      + uses forward step for very first step of model (iter=0)
2980    o re-generated *all* output since almost all output is modified by this
2981      change (sorry but we've been putting this one off for about 2 years)
2982      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2983        *not* regenerated since they are already out of date and I don't
2984        want to create the impression that they are suddenly working.
2985    o removed KAP stuff for DEC's
2986    o modified/added many .cvsignore files in */code and */input
2987    o added new expt "solid-body.cs-32x32x1"
2988      + this uses an alternative form of ini_curvilinear_grid.F which
2989        is not necessarily any better than the current one...
2990    
2991    checkpoint40pre4
2992    o added re-initialisations of utrans,vtrans,rtrans in
2993      calc_common_factors which are crucial for TAF.
2994    o extended iMin,jMin range for calc_common_factors,
2995      calc_diffusivity
2996    o added option ALLOW_PASSIVE_TRACER
2997    o a few minor updates and fixes
2998    
2999    checkpoint40pre3
3000    o created calc_gtr1.F for gad package
3001    o split the_main_loop and re-introduced forward_step
3002    o some recomputations of nIter0 for TAMC
3003    
3004    checkpoint40pre2
3005    o Updated to latest branch of AJA, JMC
3006    o Added gradient check package
3007    o Added routines for passive tracer handling
3008    o Added carbon sequestration sensitivity experiment
3009    
3010    checkpoint39
3011     o Modifications and fixes to support TAMC
3012       (mainly missing or wrong directives)
3013     o Corrected common blocks when fooling TAMC to produce adjoint I/O
3014       in addummy_in_stepping
3015     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
3016     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
3017     o Included following packages:
3018       cal: calendar
3019       exf: external forcing
3020       ecco: essential routines to control use of cal, exf
3021             (NB: this is not the full ECCO environment)
3022     o disabled some packages by default in genmake
3023    
3024    checkpoint38
3025     o see notes_c37_adj.txt
3026     o corrected wrong layer index in external_forcing_t
3027     o replaced the_main_loop/forward_step by the_main_loop
3028     o removed forceoutput from write_state
3029       (replaced criteria for initial/final state)
3030     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
3031    
3032    checkpoint37
3033     o mdsio.F routine split and packaged in pkg/mdsio
3034       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
3035        used unless genmake -disable=mdsio)
3036     o allow a more precise surface-geopotential gradient for the atmosphere
3037       taking into account the change in space of Alpha (=1/rho) at the surface.
3038     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
3039       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
3040     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
3041       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
3042       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
3043     o Time-Average diagnostics defined as a pseudo package "timeave".
3044     o pickup files : old pickup (before c35) did not work with new code (c35
3045       and after) unless activating 2 commented lines in initialise-varia.
3046     o Non-Hydrostatic pickup file Pb fixed.
3047     o bug with Rigid-lid version (since c35) fixed.  
3048    
3049    checkpoint36
3050     o implement Crank-Nickelson barotropic time-stepping
3051     o recover Time-Average diagnostics
3052     o fix Pb in checkpoint (PR#19)
3053     o AIM become a standard package ; clean unused CPP_kees
3054    
3055    checkpoint35
3056     o subtantial rewrite of dynamics.f
3057     o allows staggered time-stepping
3058     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
3059     o added bottom drag (linear + quadratic)
3060    
3061    checkpoint34
3062     o Modified exchange routines for correct reverse simulation.
3063     o Added verification output to comply with bug fix in impldiff.F
3064       as of c33 (exp2, natl_box).
3065     o Corrected store directives in dynamics.F
3066     o Corrected array boundaries in impldiff.F
3067     o Corrected array dimensions in gmredi.
3068       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
3069     o Added routine GLOBAL_SUM_INT to global_sum.F
3070     o Added mdsio_gl.F for ECCO purposes.
3071    
3072  checkpoint33  checkpoint33
3073   o Fixed bug in lower BC in impldiff.F   o Fixed bug in lower BC in impldiff.F
3074   o Fixed confusion about units of forcing arrays in FFIELDS.h   o Fixed confusion about units of forcing arrays in FFIELDS.h

Legend:
Removed from v.1.32  
changed lines
  Added in v.1.788

  ViewVC Help
Powered by ViewVC 1.1.22