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revision 1.7 by adcroft, Mon Jun 22 16:24:50 1998 UTC revision 1.253 by jmc, Tue Jan 27 19:55:02 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
7    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
8      debug output
9    o modfied mdsio_writefield.F to handle non-global files under exch2
10    o update AIM Cubed-Sphere exp (aim.5l_cs):
11      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
12    o update AIM Equatorial Channel exp:
13      use standard aim_v23 pkg and change the SST fields to be more realistic.
14    o globalFile now works with exch2
15    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
16      mon_vort3.F to make exch2 friendly with >1 tile per cube face
17    o limit timeave output for hi-res integrations
18    
19    checkpoint52i_post
20    o removed CPP_EEOPTIONS.h from verification/*/code
21    o updated the tiling for global_ocean_pressure
22    checkpoint52i_pre
23    
24    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
25      the old pkg/aim).
26    
27    checkpoint52h_pre
28    o shortened offending lines in exch2_send_rx?.template
29    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
30    o genmake2: add build & execute test for NetCDF code
31    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
32      old grid files, moved CPP_EEMACROS.h to pkg/exch2
33    o added useSingleCPUIO flag to monitor.F and mon_out.F
34    o added temporary hack for sea-ice dynamics on the cube:
35      metric terms are ignored and it is assumed that
36      there is no sea-ice on cube faces 1, 2, 4, and 5.
37    
38    checkpoint52f_post
39    o added exch2 cube routines to pkg/exch2
40    o modified hs94.cs-32x32x5 to use it
41    o added new grid files to hs94.cs-32x32x5
42    checkpoint52f_pre
43    
44    checkpoint52e_post
45    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
46      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
47    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
48      to work with implicit vertical advection and AB ;
49    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
50    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
51     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
52    checkpoint52e_pre
53    
54    o fix bug in impldiff when Nr=1 or Nr=2.
55    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
56    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
57    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
58      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
59    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
60    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
61    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
62    
63    checkpoint52d_post
64    o re-tiled many expts to allow comparison in multi-processor mode
65      - updated output accordingly
66      - changed hs94.128x64x5 to use intial T from file rather than use the
67        random number generator
68    o add infrastructure in model routines for fizhi and gridalt packages
69    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
70    o changes to permit hi-res, cubed-sphere, configuration
71      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
72      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
73      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
74        of surface winds for the cube
75      (A verification experiment, based on global_ocean.cs32x15, but with
76       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
77       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
78       complete with example surface forcing files and matlab scripts to look
79       at the output and compare it with that of global_ocean.cs32x15.)
80    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
81       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
82       to conform to the common rule.
83    o check-in the first version of the coupler + interfaces for multi-components
84       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
85       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
86       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
87       - ocean and atmos. share the same horizontal grid (no interpolation).
88       - exchanges between component and coupler is done in forward_step
89    o new verification experiment, cpl_aim+ocn:
90       coupled ocean - AIM atmosphere on cs32 grid.
91    
92    checkpoint52d_pre
93    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
94    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
95    
96    checkpoint52c_post
97    o Fixing OPTIONS files for use of exf:
98      - ALLOW_ECCO not needed
99      - ECCO_CPPOPTIONS.h should not be included from
100        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
101        as has been the case in the past
102      - All cal/exf related options are currently set in
103        single header file. Should remain so until we
104        agree on a consistent new policy.
105    o Removed all CPP options for cal package.
106      cal has no more CPP options.
107    o modified STOREs in GAD_ADVECTION
108    o corrected key comp. for passkey
109    
110    checkpoint52b_post
111    o new version: "thsice" of thermodynamic sea-ice pkg:
112     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
113     - modify fluxes but do not change theta directly;
114     - light cleaning of bulk_force pkg (still needed with thsice).
115     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
116       + output_thsice.txt to test thsice & bulk_force pkgs.
117    o put back grid & coriolis monitor output.
118    checkpoint52b_pre
119    
120    o call "do_the_model_io" at the beginning (=> dump initial state)
121    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
122    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
123      (need info on NUMBER_OF_PTRACERS)
124    o missing PTRACERS headers in some routines
125    o default tamc.h in pkg/autodiff supposed to crash
126      to ensure proper customization
127    
128    checkpoint52a_post
129    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
130      - moved surfaceTendencyTice from pkg/seaice to main code
131      - subroutine FREEZE_SURFACE now limits only surface temperature
132        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
133        => new output.txt for global_ocean.cs32x15 & global_with_exf
134      - keep the old version of FREEZE for backward compatibility;
135        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
136      - corresponding modifs for TAF directives
137    o added surface flux output variables to TIMEAVE_STATVARS
138    o time-averaged output for pkg/ptracers
139    o fix problem with ECCO-related divided adjoint
140      snapshot file was missing some ad-variables,
141      but no warning issued by TAF
142    
143    checkpoint52a_pre
144    o some bug fixes for #undef REAL4_IS_SLOW
145    
146    checkpoint52 = ecco_c52_e35
147    o after testing adjoints of checkpoint51u_post
148    
149    checkpoint51u_post
150    o this is the post-merge tag of the ecco-branch
151      (needs another clean checkout and re-testing)
152    o various natl_box_adjoint configs and results
153      but no input fields
154    o obcs adjoint not yet merged!
155    o adding ECCO global 1x1 and 2x2 degree configs
156    o updated/extended some store directives for seaice
157    o pkg/ecco now containes ecco-specific part of cost function
158    o top level routines the_main_loop, forward_step
159      supersede those in model/src/
160      previous input data.cost now in data.ecco
161      (new namelist ecco_cost_nml)
162    o in ctrl/ cleaned some cross-dependencies and updated CPP options
163    
164    checkpoint51t_post
165    o this is the pre-merge tag of the ecco-branch
166    
167    checkpoint51s_post
168    o cleanup: removed various obsolete #define-s
169    o pkg/grdchk
170      - renamed 'ph-grd 3' to 'grad-res'
171      - merged from ecco-branch
172        (remaining bug fixes for obcs gradient checks)
173      - additional high-precision output for testreport
174        (grep for 'precision_grdchk_result')
175    
176    checkpoint51r_post
177    o cleaned up or removed CPP_OPTIONS.h files
178    o updated results for some of the tests to reflect the new
179      optfiles (-ieee: -O0 instead of -O3)
180    
181    checkpoint51q_post
182    o cd_code:
183      - moved cd_scheme.F -> cd_code_scheme.F
184      - separate read_checkpoint from cd_code_ini_vars.F
185      - separated cd_code part from write_checkpoint
186      - updated AD_SOURCE, generated .flow
187      - added CD_CODE_VARS.h to the_main_loop
188      - Moving cd_code specific store dir.s to pkg/cd_code
189    o ctrl package totally restructured
190      - pack/unpack now optional and decoupled from
191        xx_/adxx_ I/O
192      - ctrl_pack/unpack cleaned
193        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
194      - confined inclusion of AD_CONFIG.h to where necessary.
195    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
196    
197    checkpoint51p_post
198    o create initial cd_code package
199      - WARNING: the initialization of fields within packages
200        is broken because INI_FIELDS (where READ_CHECKPOINT is
201        called) is called *before* PACKAGES_INIT_VARIABLES.
202        This seems to be backwards since
203        1) its important to initially zero the entire field including
204           the "halo" region
205        2) zeroing needs to be done *before* reading pickup info
206           and the pickup call might or might not happen in any
207           particular run
208      - this needs an overhaul for R2
209    o cleanup verification/*/code/GMREDI_OPTIONS.h
210    o cleanup testreport
211    
212    checkpoint51o_post
213    o bringing AD-related verif's up to date with genmake2
214      - carbon/
215      - global_ocean.90x40x15/
216      - hs.94.1x64x5/
217      - (front_relax/ )
218    o (more) consistent directory structure for AD-related verif.'s
219    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
220    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
221    o bug fix in find_alpha.F for MDJWF:
222      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
223        change rho -> rho-rhoConst
224      - replace call find_rho to find_rhonum
225    o initialisation of rFlx extended to full array (required by TAF)
226      and shifted to thermodynamics
227    o removed PTRACERS.h in ptracers routine
228    o added surfacetendencyPtr to S/R parameter list pracers_forcing
229    o Correcting initialisations for fVerU, fVerV.
230    o helping TAF to recognize dependency on kUp for
231      fVerU, fVerV
232    o Replacing delZ by delR in pkg/ctrl/
233    checkpoint51o_pre
234    
235    o undid all of cp51 pending some cleanups and discussion
236    o added the [#include "AD_CONFIG.h"] statement to all files that need
237       it for adjoint/tl #defines
238     o re-worked the build logic in genmake2 to support AD_CONFIG.h
239     o removed tools/genmake since it no longer works
240    
241    checkpoint51n_post
242    o modifications to make FREEZE flux visible to pkg/kpp
243      - moved surfaceTendencyTice from pkg/seaice to main code
244      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
245      - subroutine FREEZE now limits only surface temperature
246        (this means new output.txt for global_ocean.90x40x15,
247         global_ocean.cs32x15, and global_with_exf)
248    o added surface flux output variables to TIMEAVE_STATVARS
249    
250    checkpoint51n_pre
251    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
252    o added [#include "AD_CONFIG.h"] to all files that use the following
253      defines:
254      - ALLOW_ADJOINT_RUN
255      - ALLOW_TANGENTLINEAR_RUN
256      - ALLOW_ECCO_OPTIMIZATION
257    
258    checkpoint51m_post
259    o incorporating changes to get TAMC/TAF working in genmake2
260      - added new TAMC/TAF targets to the Makefile
261      - various cleanups related to package handling
262      - these changes should have no impact on the forward model
263    
264    checkpoint51l_post
265    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
266     - faster algorithm for cal_addtime.F
267     - higher precision arithmetic, where needed
268     - pkg/exf *startdate variables changed from calendar date to
269       model integration time
270    
271    checkpoint51l_pre
272    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
273    o enable to apply restoring on S & T only in a latitude band.
274    o update output (external_forcing_surf modif. change truncation errors)
275       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
276    
277    checkpoint51k_post
278    o change default to: useNHMTerms=.FALSE.
279     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
280       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
281     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
282        exp1, ideal_2D_oce
283     - change data file of oceanic exp (leave the results unchanged for now)
284       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
285    o set gravitySign automatically according to the vertical coordinate used
286      (and change sign: back to "logical" value: +1 when R increases downward)
287    o added an include barrier to the default CPP_OPTIONS.h and
288      removed the #include "PACKAGES_CONFIG.h" from it
289    o fix a bug in mom_fluxform (from chk51j_post)
290    
291    checkpoint51j_post
292    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
293    o adjusted some flow directives (dynamics, thermodynamics)
294    o added cubed-sphere case to test cost function
295    o heckpoint_lev?_directives.h now include
296      pkg-specific directives, whenever those are enabled.
297    o Moving pkg-specific flow directives to corresponding pkg
298      Moving pkg-specific differentiation list to corresponding pkg
299      Moving pkg-specific checkpoint-lev storing to corresponding pkg
300      ---> conventions are
301           - pkg_ad.flow
302           - pkg_ad_diff.list
303           - pkg_ad_check_lev?_dir.h
304    
305    checkpoint51i_post
306    o merge of the branch-genmake2
307      - knowingly breaks the older genmake
308      - automatic generation of all ALLOW_${PKG_NAME} defines
309      - new testreport supersedes older testscript
310    o large number of package inclusion and header cleanups
311    checkpoint51i_pre
312    
313    o new output for adjoin of global ocean vector invariant
314    o fix for checkpoint of thermodynamic seaice and bulk_force
315    o Steph gchem various cleanups
316    
317    checkpoint 51h_pre
318    o fixed some single quotes
319    o modify gchem pkg to be more versatile
320    o modifications to clean up dic pkg
321    o add pkg/cfc
322    
323    checkpoint51g_post
324    o provide links for ARPACK and ADM*TLM
325    o start removing verification/vero/
326    o update AD-related stuff
327      (in particular some IF-statements in model/src/ routines)
328    o adding to verification/global_ocean.90x40x15/ adjoint of
329      vector invariant setup
330    
331    checkpoint51f_post
332    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
333    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
334      of tracer Green's fucntions for ocean inversion project.
335    
336    checkpoint51f_pre
337    o Added on-the-fly spatial interpolation capability
338        "USE_EXF_INTERPOLATION" to pkg/exf.
339      - This is a temporary Cartesian-grid hack until
340        the super-duper ESMF coupler becomes available.
341      - See verification/global_with_exf/README for usage example.
342      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
343        flags and modified pkg/seaice accordingly.
344    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
345        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
346        non-local transport term.
347    
348    checkpoint51e_post
349    o pkg/mom_vecinv:
350      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
351      - add time-ave diagnostic of vorticity advection.
352    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
353    o atmospheric geopotential: - include water vapor effect;
354                                - use p^kappa in p* scaling.
355    o land pkg: read initial state from files.
356    o AIM : add stratospheric drag in the upper level
357    
358    checkpoint51d_post
359    o change function ILNBLNK (=> last non-blank char.) to return zero
360      (instead of the string length) when the string. char is empty
361    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
362    o modif's to restore TAMC compatibility
363      - avoid "_d" constructs in PARAMETER declarations
364      - avoid interrupting lines by comment lines
365    o Use cluster local disks for purely local I/O
366      vs. globally visible disks needed for ctrl stuff
367      (merged from ecco-branch)
368      - new active_file_loc... and mdsio_..._loc routines
369      - affected packages: autodiff, ctrl, grdchk, mdsio
370    
371    checkpoint51c_post
372    o introducing integer flag debugLevel
373      - debLevZero: suppress all output
374      - debLevA: standard
375      - debLevB: equivalent to current debugMode=.TRUE.
376    o introducing pathname variable mdsioLocalDir for mdsio
377      that can be specified at runtime
378      (relevant for cluster I/O to local disk)
379    `
380    >>>checkpoint51b_post
381    adjoint of ptracers
382    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
383    o extended state in checkpoint_lev?, etc.
384    o alternative ctrl/cost with tr1 or ptracer
385    o new comlev1_bibj_ptracers
386    o new ptracers.flow
387    o made ptracers_forcing same as external_forcing_s
388    o added verification for adjoint with ptracers
389      - adm. grdchk fail so far
390      - tlm. grdchk OK
391      - checked tapelev/comlev recomputations: OK
392    <<<checkpoint51b_pre
393    
394    checkpoint51a_post
395    o added code for biogeochemistry package
396      - new pkgs: dic, gchem
397      - new subroutine in ptracers
398    o modify code for biogeo packages
399      - in model/src and pkg/ptracers
400    
401    checkpoint51
402    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
403      - autodiff, ctrl, exf, grdchk, seaice
404      kept separate packages
405      - cost, ecco, obcs
406    o updating verification/internal_wave, verification/lab_sea
407      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
408    
409    checkpoint50i_post
410    o Preparing next differentiable checkpoint and sync
411      of MAIN vs. ecco-branch
412      - 1st step: this one is differentiable
413      - 2nd step: next(! not this) checkpoint will have updated packages
414                  from ecco-branch)
415    
416    checkpoint50h_post
417    o new package "land": provide surface BC for AIM.
418    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
419    o AIM: use true log-P extrapolation for near surface temp (= as in
420        F.Molteni paper) ; update aim.5l_cs output.
421    o New variable in PARM03 for more flexible pickups
422    o somewhat cleaned package initialisation sequence for
423      ctrl/ cost/ ecco/ in packages_... routines
424    
425    checkpoint50g_post
426    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
427      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
428      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
429        made the default because of faster convergence than ADI
430    
431    checkpoint50f_post
432    o exf totally restructured
433      - replaced all exf_set_ routines by one generic exf_set_gen.F
434        and made sure it's still differentiable
435      - split exf_getffields.F into new exf_bulkformulae.F
436      - exf_inscal_/exf_outscal_ suffixes consistent with field names
437      - updated adjoint/makefile and relevant verif. accordingly
438    
439    checkpoint50f_pre
440     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
441          + change Evap over land. (update aim.5l_cs output)
442     o added missing .cvsignores and made uniform across expts
443     o changed configuration of tidal_basin_2d expt
444     o added pkg/debug functions for tracing code in fatal crashes
445     o tidied pkg/monitor to use MONITOR_OPTIONS.h
446     o new fn in pkg/monitor to stop model if solution grows too big
447     o removed lots of single quotes from comments
448    
449    checkpoint50e_post
450    o make KPP work with PTRACERS
451     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
452       nearly a copy of kpp_transport_s
453     - there is no analogue to SurfaceTendencyS, so I have to use
454       gPtr(of the surface layer) instead
455    o add a new platform SunFire+mpi (SunFire 15000) to genmake
456    checkpoint50e_pre
457    
458    checkpoint50d_post
459    o change kpp output from multiple-record state files to single-record state
460      files analogous to write_state.F
461    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
462      analogous to the cg2d-related output.
463    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
464      so that writing to internal file fn (with length 512) fails.
465    checkpoint50d_pre
466    
467    checkpoint50c_post
468    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
469    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
470    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
471    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
472    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
473    
474    checkpoint50c_pre
475    Merging from release1_p13:
476    o bug fix for pkg/seaice dynamic solver
477    o Added SEAICE_initialHEFF to pkg/seaice
478    
479    checkpoint50b_post
480    o store u*,v* in gU,V instead of in guNm1,gvNm1
481    o in order to put the momForcing out of the Adams-Bashforth:
482      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
483      to timestep.F
484    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
485    o re-generate output for highly sensitive test-exp:
486       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
487    
488    checkpoint50b_pre
489    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
490    o corrected CPP option mismatch in exf_Bulk... functions for case
491      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
492    
493    checkpoint50a_post
494    o Bug fix for merging between c50 and KPP.
495      ikey was passed from thermodynamics to kpp_calc via
496      common block rather than being recomputed in kpp_calc,
497      in contradiction with new key itdkey.
498      New key ikppkey created, and tamc.h headers updated.
499    
500    checkpoint50
501    - 2nd step of merge with ecco-branch:
502      merge changes in ecco-branch back into main trunk
503    - bug fix in find_alpha
504    - more storing in gmredi_calc_tensor.F, kpp_routines.F
505    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
506    - merged some sliced AD support routines
507    
508    checkpoint49
509    merged from ecco-branch:
510    o exf:
511      - Enable initialisation of forcing fields to constant
512        (runtime) values.
513      - in exf_getffields.F
514        Reduce i-/j-loop to interior domain, discarding overlaps.
515        That also fixes wrong TAF-key computations for key_1, key_2
516        with bulf formulae.
517      - exf_init.F modify #ifdef for exf_init_evap
518      - exf_getffieldrec.F, ctrl_getrec.F
519        The following INT-usages are not safe:
520          fldsecs  = int(fldsecs/fldperiod)*fldperiod
521          fldcount = int(fldsecs/fldperiod) + 1
522        and were modified.
523    o autodiff: checkpoint_lev...
524      - updated storing for bulk formulae (some arrays were missing)
525      - added state for seaice package
526      - synchronized with main branch
527    o DIVA:
528      Modif.s in
529      - the_main_loop.F
530      - the_model_main.F
531      and added cost_final_restore.F cost_final_store.F
532      o With these changes, it is possible to fully separate
533        the first forward run to compute the cost function (mdthe_main_loop)
534        and adjoint runs over individual DIVA intervals (adthe_main_loop)
535        into separate model executions.
536        This enables better tuning of DIVA to given queue sizes.
537      o Loss of cost function value in consecutive DIVA runs is
538        fixed by storing to 'costfinal' file.
539      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
540        beginning/end of adjoint integration is accounted for.
541      The current changes apply to TAF-1.4.26.
542      TAF has one remaining bug, requiring one manual change
543      (see MITgcm manual).
544    o cal: synchronized between MAIN and ecco-branch
545    
546    checkpoint48i_post
547    o Changes to restore differentiability of code w.r.t. previous tag
548      (mostly adding new routines to make list and replacing
549      pressure by totPhiHyd).
550    o Updated and merged grdchk package
551      - has both ADM and TLM checks
552      - works for single- and multi-proc.
553      - output cleaned
554      - worked successfully for parallel DIVA
555    o genmake:
556      - Adding -platform=SP4
557      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
558    o Modif. for DIVA:
559      ctrl_unpack should not be called in intermediate DIVA interval.
560      (similar thing would apply for active files such as
561      tbar, sbar, psbar, which should not be reinitialised;
562      only relevant for ecco-branch)
563    
564    checkpoint48h_post
565    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
566    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
567    o Added SEAICE_initialHEFF to pkg/seaice
568    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
569    
570    checkpoint48g_post
571    --- EOS:
572    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
573      store total Potential in totPhyHyd for diagnostics & EOS.
574    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
575    --- Pressure/geopotential gradient:
576    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
577    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
578      ( changes results of global_ocean_pressure )
579    o NLFS + z-coord.: add eta*Rho' contribution.
580    o accurate phiHyd when using interface-W at the middle between 2 centers
581     ( changes results of ideal_2D_oce )
582    o includes r* 2nd term in potential gradient.
583    
584    checkpoint48f_post
585    Merging from release1_p12:
586    o Modifications for using pkg/exf with pkg/seaice
587      - improved description of the various forcing configurations
588      - added basic radiation bulk formulae to pkg/exf
589      - units/sign fix for evap computation in exf_getffields.F
590      - updated verification/global_with_exf/results/output.txt
591    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
592      (SBO) core products, including oceanic mass, center-of-mass,
593      angular, and bottom pressure (see pkg/sbo/README.sbo).
594    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
595      to avoid negative values in shallow regions.
596      - updated verification/natl_box/results/output.txt
597      - updated verification/lab_sea/results/output.txt
598    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
599    o Added useSingleCpuIO option (see PARAMS.h).
600    o Updated useSingleCpuIO option in mdsio_writefield.F to
601      work with multi-field files, e.g., for single-file pickup.
602    o pkg/seaice:
603      - bug fix in growth.F: QNET for no shortwave case
604      - added HeffFile for specifying initial sea-ice thickness
605      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
606    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
607      kpp_transport_t.F, forward_step.F, and the_main_loop.F
608    o pkg/seaice:
609      - adjoint-friendly modifications
610      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
611    
612    checkpoint48e_post
613    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
614    o dynamics: change definition of computational domain & adapt mom_fluxform
615      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
616    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
617        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
618        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
619        global_ocean.90x40x15 global_with_exf global_ocean_pressure
620        inverted_barometer solid-body.cs-32x32x1
621      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
622    
623    checkpoint48d_post
624    o in preparation for r*:
625     a) use pre-computed gradient of hydrostatic potential:
626        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
627     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
628        => affects results of glob_oce_pressure (different truncation error)  
629      update output.txt of ideal_2D_oce & global_ocean_pressure
630    
631    checkpoint48d_pre
632    o in preparation for r*:
633      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
634      pass the 2 comp. of the grad. as arguments to momentum S/R.
635      but for the moment, only used if it does not change the results.
636    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
637    
638    checkpoint48c_post
639    Modifications in treatment of initial flux forcing controls
640    to avoid extra storing of flux fields.
641    
642    checkpoint48c_pre
643    o Added tidal_basin_2d experiment (currently 1D!)
644    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
645    
646    checkpoint48b_post
647    o r* coordinate added in #ifdef NONLIN_FRSURF block.
648     (modification to pressure gradient not yet implemented)
649    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
650      (for U & V) that are used for vertical advection of momentum.
651    
652    checkpoint48a_post
653    o In preparation for r*, use temp. array to compute vertical transport
654       in flux-form momentum pkg. => change results of few test-exp.
655      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
656                        lab_sea, natl_box & plume_on_slope
657    
658    checkpoint48
659    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
660    
661    checkpoint47j_post
662    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
663    o moved adexch from forward_step to addummy_in_stepping
664    o added exch in ctrl_map_...
665    o aveFreq.=0. at end of cost_final to avoid overwrite in
666      reverse checkpointing loop
667    o Yet more changes in gmredi:
668      * adgmredi_calc_tensor
669        avoiding all recomputation of gmredi_slope_limit
670      * adgmredi_x/y/rtransport
671        added flag for excessive storing to avoid recomp. of
672        u/v/rtans, dTdx/y/z
673        -> this is not really necessary and very memory-consuming
674      * adgmredi_slope_psi:
675        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
676      * gmredi_slope_limit
677        re-activated full calculation of taperfct for case 'ac02'
678    o updating verification/ adjoints of carbon, global_ocean.90x40x15
679    
680    checkpoint47i_post
681    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
682    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
683      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
684    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
685    o gmredi: fix few bugs.
686    
687    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
688    This will be a good checkpoint to plug into the ecco-branch.
689    o few modif.'s to get latest version adjointed
690      (mainly kick out code in ini_linear_phisurf)
691    o modif's to run adjoint with exactConserv
692    o case GM_BOLUS_ADVEC should be cleaned
693      S/R gmredi_slope_psi should be cleaned
694    o verification/carbon now has exactConserv=.TRUE.
695    
696    checkpoint47g_post
697    o time-average AIM output: becomes independent from statvars time-average
698      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
699    o After TAF bug fix:
700      Tested adjoint of gmredi package.
701      Tests were done with checkpoint47 rather than with latest
702      checkpoint47f_post since the latter is broken for the adjoint
703      verification/carbon/ contains both ADM and TLM gradient checks.
704    Here they are, before they get changed/lost/stolen.
705    Mostly modif.'s to fix numerical sensitivities.
706    Gradient checks OK for
707    - GM_taper_scheme:
708      * clipping
709      * ac02
710      * linear
711      * glw91
712      * dm95
713      * ldd97
714    - GMREDI_OPTIONS:
715      * GM_VISBECK_VARIABLE_K
716      * GM_NON_UNITY_DIAGONAL
717      * GM_EXTRA_DIAGONAL
718      * GM_BOLUS_ADVEC
719    in conjunction with data.gmredi parameters to be checked in
720    in a few minutes under verification/carbon/code/
721    
722    checkpoint47f_post
723    Merging from release1_p10:
724    o modifications for using pkg/exf with pkg/seaice
725      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
726        and SEAICE_EXTERNAL_FLUXES
727      - pkg/exf CPP options EXF_READ_EVAP and
728        EXF_NO_BULK_COMPUTATIONS
729      - usage examples are Experiments 8 and 9 in
730        verification/lab_sea/README
731      - verification/lab_sea default experiment now uses
732        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
733    
734    checkpoint47e_post
735    o created a tag prior to creating a branch
736    
737    checkpoint47d_post
738    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
739      at the bottom boundary had an erroneous half slip boundary condition
740    o added bottom drag and no slip boundary condition capabilities to
741      oceanic pressure coordinates code
742    o added new verification experiment global_ocean_pressure, this experiment is
743      also described in the tutorial section of the manual
744    checkpoint47d_pre
745    
746    checkpoint47c_post
747    o Added a verification experiment for a global cubed-sphere ocean run
748      -  verification/global_ocean.cubed32x32x30
749      -  uses pkg/therm_seaice and pkg/bulk_forcing
750    
751    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
752    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
753      when using P-coordinate; only implemented for atmospheric config.
754    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
755      NOTES: requires option NONLIN_FRSURF to be "#define".
756    o update advect_xz/results/output.txt (left from checkpoint44g_post)
757    
758    checkpoint47b_post
759    Merging from release1_p9:
760    o pkg/seaice
761      - removed GOTO's and added taf directives
762      - double precision constants to reduce the g77 (Linux)
763        to F77 (SGI) differences reported in release1_p8
764    o tools/genmake
765      - added SGI options
766    o verification/testscript
767      - updated to that of checkpoint47a_post
768    o verification/global_ocean.90x40x15/input/eedata
769      - modified for SGI f77 compatibility
770    o verification/lab_sea
771      - added description of sea-ice model
772      - added missing matlab routines
773      - added test of thermodynamics parallelization
774    
775    checkpoint47a_post
776    o new pkg: aim_v23
777     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
778       for now, keep the same surface forcing as before.
779     - Part-Cell implemented into AIM; check that Heat & Water are conserved
780     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
781     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
782    o add diagnostic of surface correction term in monitor output
783    
784    o bulk_force and therm_seaice
785    - Two packages:  bulk_force (Bulk forcing)
786      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
787    - Earlier integration from Stephaine Dutkiewicz
788      and Patrick Heimbach.
789    - Two ifdef statements for compile time,
790       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
791    
792    checkpoint47
793    differentiable version of checkpoint46n_post
794    o bug fix in quasihydrostaticterms
795    o * "clean" adjoint code (in terms of extensive recomputations)
796        can now be obtained for all GMREDI options (i.e. for
797        - GM_VISBECK_VARIABLE_K
798        - GM_NON_UNITY_DIAGONAL
799        - GM_EXTRA_DIAGONAL
800        - GM_BOLUS_ADVEC )
801      * However, wrong gradient check problem remains unsolved.
802      * New CPP options have been introduced for different
803        tapering schemes
804    o external_fields_load now part of differentiation list
805    o pressure needs multiple storing;
806      would be nice to have store_pressure at beginning or
807      end of forward_step, e.g. by having phiHyd global (5-dim.)
808      (NB: pressure is needed for certain cases in find_rho,
809      which is also invoked through convective_adjustment).
810    o recomputations in find_rho for cases
811     'JMD95'/'UNESCO' or 'MDJWF' are OK.
812    o #define ATMOSPHERIC_LOADING should be differentiable
813    o ini_forcing shifted to begining of initialise_varia
814    o Incorporating QNVS line search routines into MITgcm
815      (this is separate code, and therefore not under pkg)
816      lsopt/, optim/
817    o Updated verification/carbon/
818      - #define GM_VISBECK_VARIABLE_K
819      - GM_taper_scheme    = 'ldd97'    
820    
821    checkpoint46n_post
822    Merging from release1_p8:
823    o verification/natl_box:
824      updating new external_fields_load routine
825    o New package: pkg/seaice
826      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
827      The sea-ice code is based on Hibler (1979-1980).
828      Two sea-ice dynamic solvers, ADI and LSR, are included.
829      In addition to computing prognostic sea-ice variables and diagnosing
830      the forcing/external data fields that drive the ocean model,
831      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
832      The implied surface heat flux is then stored in variable
833      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
834      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
835      non-local transport term.  Because this call precedes model
836      thermodynamics, temperature under sea-ice may not be "exactly" at
837      the freezing point by the time theta is dumped or time-averaged.
838      N.B.: fairly large differences in accuracy occur across
839            different platforms/compilers; comparison between
840            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
841            generated output gives:
842       T           S           U           V
843      C D M    c        m  s        m  s        m  s        m  s
844      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
845      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
846      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
847    
848      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
849    o GAD:
850      - generated new common blocks to account for call of
851        same gad routines with differing traceridentities
852        (needed to modify tracerIdentity indices in GAD.h)
853      - generated separate common blocks for case useCubedSphereExchange
854        (Department of Futurology)
855      - parameter lists to gmredi_?transport: added tracerIdentity
856      - added new key indices to tamc.h
857    o external_fields_load:
858      - added this routine to TAF list
859      - needed to make some common blocks global and additional storing
860        along the same lines as exf package (checkpoint_lev?_directives.h)
861    o exf:
862      updated external forcing package
863      - bug fixes carried over from ecco-branch
864        (missing OBCS_OPTIONS.h in two routines)
865      - enable easy to use "no forcing".
866      - added exf I/O for atmospheric loading
867      - added exf I/O for runoff data
868      - transfered scaling between exf <-> MITgcm to exf namelist
869    o Adding new verification experiment global_with_exf.
870      This verification experiment is almost identical to the
871      global_ocean.90x40x15 experiment, except that it uses
872      the exf (and cal) package instead of the
873      external_fields_load routine (cf README file).
874    
875    checkpoint46m_post
876    o modified testscript to return -- when there are no lines of "%MON" output
877    o added new flag "quasiHydrostatic" for QH mode
878      and new routine quasihydrostaticterms()
879    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
880      New routine: mom_u_coriolis_nh()
881    o fixed sign of non-hydrostatic metric terms in u and v equations.
882      Depend on correct sign of gravitySign.
883    o added work.pc* to .cvsignore in aim directories using ifc
884    o introduced flag for controllin non-hydrostatic metric terms
885    o removed gravitySign from PARM04
886    o switched to g77/ifc from pgf77 in aim experiments
887    
888    checkpoint46l_post
889    o made convective adjustment work with pressure coordinates:
890     - changed the direction of k-loop in convective_adjustment.F for the
891       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
892     - adjusted the reference pressure k-index in convective_adjustment.F
893     - adjusted the convection condition in convect.F (in analogy to
894       calc_ivdc.F)
895     - convective_adjustment no longer computes anything on the halos
896     - removed the warnings about negative salinity from find_rho.F and
897       find_alpha.F; instead the new routine look_for_neg_salinity, called
898       at the beginning of find_rho, find_alpha, and find_beta, does a
899       check of the entire slice, if CPP-option
900       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
901    checkpoint46l_pre
902    
903    checkpoint46k_post
904    o fixed the verification/global_ocean.90x40x15 experiment:
905     - new bathymetry (the world according to A., JMC, and M.)
906     - new initial fields and forcing fields (*.bin files)
907     - new POLY3.COEFFS (for the next release one should switch to a full
908       equation of state: JMD95P or MDJWF)
909     - fixed several errors and redundancies in the data file
910     - experiment uses looped cells
911     - added matlab directory with diagnostic scripts for plotting of output
912    
913    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
914     - read AIM physics parameters from a file (data.aimphys)
915     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
916    
917    checkpoint46j_post
918    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
919    o move wVel computation at the end of the time step, in S/R integr_continuity
920    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
921    o update timeave pkg for wVel diagnostic.
922    checkpoint46j_pre
923    
924    checkpoint46i_post
925    o Clean up AIM package (and keep the results unchanged):
926      include CPP_OPTION and use IMPLICT NONE in all routines ;
927      declare all the variables _RL ; use _d 0 for all numerical constants.
928      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
929    
930    checkpoint46h_post
931    o cleaned up the use of rhoNil and rhoConst.
932      - rhoNil should only appear in the LINEAR equation of state, everywhere
933        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
934        and the dynamical equations are all divided by rhoConst
935    o introduced new parameter rhoConstFresh, a reference density of fresh
936      water, to remove the fresh water flux's dependence on rhoNil. The default
937      value is 999.8 kg/m^3
938    o cleanup up external_forcing.F and external_forcing_surf.F
939      - can now be used by both OCEANIC and OCEANICP
940    checkpoint46h_pre
941    
942     Added code to convert surface volume flux (fresh water) into
943     a mass flux when using P coordinates in the ocean (OCEANICP).
944     Note: It assumes you have set rho0=rhoConst=density of fresh water.
945    
946    checkpoint46g_post
947    o Include a new diagnostic variable phiHydLow for the ocean model
948      - in z-coordinates, it is the bottom pressure anomaly
949      - in p-coordinates, it is the sea surface elevation
950      - in both cases, these variable have global drift, reflecting the mass
951        drift in z-coordinates and the volume drift in p-coordinates
952      - included time averaging for phiHydLow, be aware of the drift!
953    o depth-dependent computation of Bo_surf for pressure coordinates
954      in the ocean (buoyancyRelation='OCEANICP')
955      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
956        Theta, Salinity, and Pressure in the parameter list. This routine is
957        presently contained in find_rho.F. This routine does not give the
958        correct density for 'POLY3', which would be a z-dependent reference
959        density.
960    o cleaned up find_rho
961      - removed obsolete 'eqn' from the parameter list.
962    o added two new verification experiments: gop and goz
963      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
964    checkpoint46g_pre
965    
966    checkpoint46f_post
967    o Enable tangent linear (forward mode) gradient checks:
968      - extended active file handling to g_... files
969      - added TANGENT_SIMULATION to theSimulationMode
970      - extended grdchk package accordingly
971    o added tangent linear setup in verification/carbon/code_ftl
972    o added adjoint setup in verification/front_relax/code_ad
973    
974    checkpoint46e_post
975    o Added new equation of state -> MDJWF
976      - EOS of McDougall et al., 2002, JAOT, submitted
977      - caveat: the equation of state is only valid for a smaller (more
978        realistic?) range of values than JMD95P/Z and UNESCO
979      - added masks to the calculation of pressure in store_pressure
980      - added more check values for density in check_eos (ini_eos.F), some of
981        the old check values are out of the range of the MDJWF-eos, so don't
982        expect perfect matches for those
983    checkpoint46e_pre
984    
985    checkpoint46d_post
986    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
987      'OCEANICP', also initialised field pressure correctly in ini_eos in the
988      case of pressure coordinates. eosType='JMD95Z' in
989      combination with buoyancyRelation='OCEANICP' now causes an error.
990    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
991      in find_alpha/beta.
992    checkpoint46d_pre
993    
994    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
995      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
996    
997    checkpoint46c_post
998    o Changes necessary for ocean in p-coordinates
999     -  Added new buoyancy relation = 'OCEANICP'
1000     -  Added new parameters = gravitySign (this used to be contained inside
1001        the factor dRdZ which I added when we first switched to R coordinates).
1002     X GM/Redi is not compatible (yet)
1003     X bottom drag and no-slip need to be debugged.
1004    checkpoint46c_pre
1005    
1006    checkpoint46b_post
1007    o Added new equation of state -> JMD95Z and JMD95P
1008      - EOS of Jackett and McDougall, 1995, JAOT
1009      - moved all EOS parameters into EOS.h
1010      - new routines ini_eos.F, store_pressure.F
1011    o Added UNESCO EOS, but not recommended because it requires
1012      in-situ temperature (see JMD95)
1013    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1014      unesco.f to be used with POLY3
1015    checkpoint46b_pre
1016    
1017    checkpoint46a_post
1018    o Added (atmospheric) pressure loading
1019      - new field in FFIELDS.h, etc...
1020      - new cpp flag ATMOSPHERIC_LOADING
1021    o Changed hFacC to _hFacC in calc_phi_hyd.F
1022    o Added SHORTWAVE_HEATING to some files for consistency
1023    checkpoint46a_pre
1024    
1025    checkpoint46
1026    further merges from release1_p5
1027    o new ctrl package
1028      - adopted from ECCO environment to enable optimization
1029      - added Eliassen Palm fluxes to controls
1030    o added Eliassen Palm flux controls to gradient check package
1031    o cost package
1032      - Compatible with new ctrl package
1033      - added Eliassen Palm cost hooks
1034      - modif's of existing cost functions
1035    o Adjoint-related bug fixes in kpp:
1036      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1037      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1038    o autodiff package
1039      - flow directives:
1040        + new for S/R do_the_model_io
1041        + enhanced for S/R checkpoint
1042        + new gmredi.flow
1043      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1044        disable adcommon.h/g_common.h by default.
1045      - fixed problem for adjoint of global_max
1046    o modified verification/carbon/
1047    o New setup for adjoint of global_ocean
1048    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1049    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1050    o incorporated hooks for sponge layer code (external_forcing.F)
1051    
1052    checkpoint45d_post
1053    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1054    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1055      (affects plume_on_slope "cg2d" output)
1056    o add new parameter deltaTfreesurf for free-surface time stepping
1057    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1058    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1059    o change phiMin in exp1 (to agree with documentation)
1060    o add new flags:
1061     - T,S forcing inside/outside Adams-Bashforth
1062     - turn off temp,salt advection and/or forcing
1063     - for each tracer, define internal flag for multiDimAdvection & A-B
1064    o monitor: change definition of KE to check conservation of Energy
1065    
1066    checkpoint45c_post
1067    o Removed f90 comments ("!")
1068    o Modified initialisations to enable exf package for MITgcm
1069      (without invoking ECCO_PACKAGE).
1070    o modifications to gradient check package (Martin Losch)
1071      - enable centered differences
1072      - modified format of standard output
1073    
1074    checkpoint45b_post
1075    o cleaned exchange calls in cg2d
1076    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1077    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1078      to configure barotropic setup (Martin Losch)
1079    o moved some initialisations within bi,bj loop in dynamics
1080      (TAF flow dependency)
1081    o in initialise_varia, moved call packages_init_variables
1082      before convective_adjustment_init
1083      (corresponding adjustment of TAF tape initialisation).
1084    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1085    
1086    checkpoint45a_post
1087    o compute Rho over the whole domain (extend iMin,jMin indices)
1088    o specific exchange for X-slice domain (case Ny=1)
1089    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1090    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1091    
1092    checkpoint44h_post = checkpoint45
1093    o Fix to restore differentiability:
1094      place at which packages_init_variables is called in
1095      initialise_varia is crucial for reverse control flow.
1096    o modifications in GMRedi to enable stable adjoint
1097      (corresponding modif's in thermodynamics, dynamics)
1098    o added missing hook for sponge layer code in external_forcing
1099    o modified test cost functions
1100    o storing in gad_advection (plus removal of write(0,*)!
1101    o missing headers TR1.h added in convective_adjustment routines
1102    o errorMessageUnit set non-equal zero in eeboot
1103      (conflict on some platforms, e.g. IBM SP3)
1104    o modified carbon verif.
1105    
1106    checkpoint44h_pre
1107    o vertical grid option: allow to put the Interface at the middle between
1108      2 cell-centers ; replace delZ in pkg/kpp by drF.
1109    o GM Advective form: Tracers are advected using the residual transport (=
1110      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1111    
1112    checkpoint44g_post
1113    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1114      results) ; ifdef missing in thermodynamics.F
1115    
1116    checkpoint44f_pre,checkpoint44f_post
1117    o added PTRACERS package
1118      This allows an arbitrary number of passive tracers to be integrated
1119      forward simultaneously with the dynamicaly model.
1120      + Implemented so far:
1121        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1122        - I/O and checkpointing
1123        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1124      + Not implemented so far:
1125        - KPP
1126        - OBCS
1127      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1128        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1129        line in data.pkg.
1130      + This package is disabled by default since it increases storage.
1131    
1132    
1133    o testscript: added -cleanup option
1134    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1135                 b) enable to filter 2D fields.
1136    
1137    checkpoint44e_pre,post
1138    o re-wrote convective adjustment to use pre-calculated weights
1139      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1140      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1141      Original calls to convect() still in place.
1142    
1143    chkpt44d_pre,post
1144    o added missing EXCLUDE_MONITOR flags
1145    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1146      (incompatible typ in MIN/MAX expressions caused problems
1147      on IBM SP3)
1148    o in genmake added variable MAKEDEPEND
1149      plus resetting for case SunOS
1150    o added timer_stats.c routine for IBM SP3
1151    o removed variables in dynamics
1152    !!! I forgot to create tag chkpt44d_pre !!!
1153    !!! But chkpt44d_pre = chkpt44c_post    !!!
1154    
1155    o real fresh water flux implemented with non-linear free-surface.
1156    
1157    chkpt44c_pre,post
1158    o few fix (mask in shap_s2, EmPmR in external_field_load,
1159      USE_NATURAL_BCS in solve_for_P);
1160    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1161    
1162    checkpoint44b_pre/_post
1163    o merge of relevant stuff from the ecco-branch:
1164      - genmake: removed $S64 overwrite for case SunOS
1165      - pkg/exf: update and corrections for field swapping and obcs
1166      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1167                  harmonized between ECCO and MITgcm
1168      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1169                      updated checkpointing_lev... lists for obcs
1170      - model/src: minor changes in forward_step, plot_field
1171                   added directive for divided adjoint in the_main_loop
1172      - pkg/mdsio: added mdsio_gl_slice
1173    
1174    o check parameters & config (chkpt44a_pre,post)
1175    o OBC and NonLin_FrSurf.
1176    
1177    checkpoint44
1178    o fix bug in mom_vi_del2uv
1179    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1180    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1181    o update AIM experiments (NCEP input files)
1182    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1183    o added some stuff for AD
1184    
1185    checkpoint43
1186    o added two new advection tests
1187    o added global 4x4 degree ocean test
1188    o added test of H&S94 with free surface on cube
1189    o some final mods for gradient check, adjoint,...
1190    
1191    checkpoint42
1192      Fixed AD-related problems:
1193    o Store directives up-to-date with re-arranged Adams-Bashforth
1194      (mainly thermodynamics.F)
1195    o New store directives for multi-dim. advection schemes
1196      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1197      * new common block and key passkey
1198      (mainly gad_advection.F)
1199    o Modified store directives for split of dynamics/thermodynamics
1200      for the case ALLOW_KPP
1201    o Cleaned argument list for timestep_tracer.F
1202    
1203    checkpoint41
1204    o re-formatted/added comments in prologues of key subroutines
1205      to work with protex
1206    
1207    checkpoint40
1208    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1209    o added FLT (floats) package from Arne along with demo. experiment
1210    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1211      implementation of forward-in-time forcing terms
1212    o more mods for non-linear free-surface including new variable
1213    o modified multi-dim method to work on cube
1214    o bug fix in KPP (from DM)
1215    
1216    checkpoint40pre9
1217    o added DST advection schemes
1218    o fix MPI bug on SGI's
1219    o modifications for non-linear free-surface
1220    o fixed conditionals for fixed flow/passive tracer only mode
1221    o added tension/strain form of stress tensor
1222    o changes to commenting of arguments for TAF/TAMC
1223    o added/updated many matlab scripts
1224    o added multi-dimensional advection method for tracers
1225      
1226    checkpoint40pre8
1227    o new package rw/
1228      Added method for dumping intermediate local arrays:
1229      mdsio_writetile - same as mdsio_writefield except works from inside
1230                        bi,bj loop
1231      mdsio_writelocal - same as mdsio_writetile except works for local
1232                         arrays
1233      write_local_r? - higher-level wrapper for mdsio_writelocal
1234      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1235      Example given at end of mom_vecinv.F that dumps some local arrays.
1236    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1237      control flux-form versus vector invariant code.
1238      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1239      or genmake -DISABLE ...
1240    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1241      (additional storing is now needed for case vecinv;
1242      currently nothing implemented to switch this storing off
1243      in case fluxform is used since no CPP flag available).
1244    
1245    checkpoint40pre7
1246    o bug fix in dynamics.F
1247      calc_viscosity called before k=1,Nr loop.
1248    o added some #ifdef's ALLOW_PASSIVE_TRACER
1249    o cleaned initialisations in ctrl_map_ini
1250      related to TAF
1251    
1252    checkpoint40pre6
1253    o split dynamics into thermodynamics & dynamics
1254    o corresponding split of calc_diffusivity into
1255      calc_diffusivity, calc_viscosity
1256      (kpp_calc_diff, kpp_calc_visc).
1257    o Added diffkr, kapgm to control variables
1258    o bug fix in gmredi_slope_limit for ldd97
1259    
1260    checkpoint40pre5
1261    o proper initialization of Adams-Bashforth time stepping
1262      + uses forward step for very first step of model (iter=0)
1263    o re-generated *all* output since almost all output is modified by this
1264      change (sorry but we've been putting this one off for about 2 years)
1265      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1266        *not* regenerated since they are already out of date and I don't
1267        want to create the impression that they are suddenly working.
1268    o removed KAP stuff for DEC's
1269    o modified/added many .cvsignore files in */code and */input
1270    o added new expt "solid-body.cs-32x32x1"
1271      + this uses an alternative form of ini_curvilinear_grid.F which
1272        is not necessarily any better than the current one...
1273    
1274    checkpoint40pre4
1275    o added re-initialisations of utrans,vtrans,rtrans in
1276      calc_common_factors which are crucial for TAF.
1277    o extended iMin,jMin range for calc_common_factors,
1278      calc_diffusivity
1279    o added option ALLOW_PASSIVE_TRACER
1280    o a few minor updates and fixes
1281    
1282    checkpoint40pre3
1283    o created calc_gtr1.F for gad package
1284    o split the_main_loop and re-introduced forward_step
1285    o some recomputations of nIter0 for TAMC
1286    
1287    checkpoint40pre2
1288    o Updated to latest branch of AJA, JMC
1289    o Added gradient check package
1290    o Added routines for passive tracer handling
1291    o Added carbon sequestration sensitivity experiment
1292    
1293    checkpoint39
1294     o Modifications and fixes to support TAMC
1295       (mainly missing or wrong directives)
1296     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1297       in addummy_in_stepping
1298     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1299     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1300     o Included following packages:
1301       cal: calendar
1302       exf: external forcing
1303       ecco: essential routines to control use of cal, exf
1304             (NB: this is not the full ECCO environment)
1305     o disabled some packages by default in genmake
1306    
1307    checkpoint38
1308     o see notes_c37_adj.txt
1309     o corrected wrong layer index in external_forcing_t
1310     o replaced the_main_loop/forward_step by the_main_loop
1311     o removed forceoutput from write_state
1312       (replaced criteria for initial/final state)
1313     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1314    
1315    checkpoint37
1316     o mdsio.F routine split and packaged in pkg/mdsio
1317       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1318        used unless genmake -disable=mdsio)
1319     o allow a more precise surface-geopotential gradient for the atmosphere
1320       taking into account the change in space of Alpha (=1/rho) at the surface.
1321     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1322       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1323     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1324       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1325       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1326     o Time-Average diagnostics defined as a pseudo package "timeave".
1327     o pickup files : old pickup (before c35) did not work with new code (c35
1328       and after) unless activating 2 commented lines in initialise-varia.
1329     o Non-Hydrostatic pickup file Pb fixed.
1330     o bug with Rigid-lid version (since c35) fixed.  
1331    
1332    checkpoint36
1333     o implement Crank-Nickelson barotropic time-stepping
1334     o recover Time-Average diagnostics
1335     o fix Pb in checkpoint (PR#19)
1336     o AIM become a standard package ; clean unused CPP_kees
1337    
1338    checkpoint35
1339     o subtantial rewrite of dynamics.f
1340     o allows staggered time-stepping
1341     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1342     o added bottom drag (linear + quadratic)
1343    
1344    checkpoint34
1345     o Modified exchange routines for correct reverse simulation.
1346     o Added verification output to comply with bug fix in impldiff.F
1347       as of c33 (exp2, natl_box).
1348     o Corrected store directives in dynamics.F
1349     o Corrected array boundaries in impldiff.F
1350     o Corrected array dimensions in gmredi.
1351       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1352     o Added routine GLOBAL_SUM_INT to global_sum.F
1353     o Added mdsio_gl.F for ECCO purposes.
1354    
1355    checkpoint33
1356     o Fixed bug in lower BC in impldiff.F
1357     o Fixed confusion about units of forcing arrays in FFIELDS.h
1358       namely Fu,Fv,Qnet,Qsw,EmPmR:
1359       - Removed verification/natl_box/code/external_fields_scale.F
1360         (did not differ from that in model/src)
1361       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1362         (see FFIELDS.h for description)
1363       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1364         kpp_calc.F and kpp_transport_t.F
1365       - Removed model/src/external_fields_scale.F and calls to it
1366       - verification/natl_box uses flux data with "atmospheric" sign so
1367         a special version of external_fields_load.F is used to
1368         change the data as it's read in. This way, the arrays
1369         have the right units and signs at all times tha a user could
1370         possibly use them.
1371     o Corrected genmake to delete a temporary file during configuration
1372    
1373    checkpoint32
1374     o Scaling of forcing fields moved from external_forcing.F to
1375       external_fields_scale.F, called directly after loading fields.
1376     o Surface relaxation terms added to surface tendency fields in
1377       extra subroutine.
1378     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1379       fields.
1380     o Changes in GMRedi to comply with packaging structure.
1381     o Modifications and bug fixes in KPP package.
1382     o Verification experiment for KPP added (verification/nat_box/)
1383    
1384    checkpoint31
1385     o Packages interface brought in line with defined standard
1386       -> new routines packages_...F
1387       -> changes in initialise_fixed.F, initialise_varia.F
1388       -> enables initialisation interface for ECCO package
1389     o Rescaling of external forcing fields immediately after read
1390       (removed from external_forcing.F)
1391       -> new: surface_fields_scale.F
1392       -> affects ini_foorcing.F, external_fields_load.F
1393     o Computation of surface tendencies before tendency updates.
1394       -> new: external_forcing_surf.F
1395     o Change of variable names useGMRedi, useKPP, useECCO
1396     o Further changes in dynamics.F, impldiff.F for TAMC
1397     o Tested for experiments 0, 2, 4.
1398       - not yet tested for GMRedi.
1399       - not yet tested for KPP.
1400    
1401    checkpoint30
1402     o Updates for OBCs
1403     o New experiment for test OBCs (internal_wave)
1404     o New output.txt in verification/exp4/results/
1405     o Updates for KPP: calculation of viscosity corrected, new variables
1406       kpp_dumpFreq and kpp_taveFreq
1407     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1408       and entry for T90 in genmake
1409    
1410    checkpoint29
1411     o packaged KPP and GM/Redi
1412    
1413    checkpoint28
1414     o Corrected initialization of hFacMin for difference vertical coordinates
1415     o Modified calculation of partial cell thickness to more robust algorithm
1416     o config_summary.F: replaced write_1D_... by write_0D_...
1417       read_write.F: added subroutines write_0D_...
1418     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1419       included some initialisations required for TAMC.
1420     o routine calc_isoslopes: modified sqrt computation to make it
1421       differentiable for zero argument.
1422     o routines dynamics, impldiff:
1423       included store directives and tape key computations required for TAMC.
1424     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1425    
1426    checkpoint27
1427     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1428       formulation works properly with variable resolution.
1429     o restructured the calling tree between the_model_main() and dynamics()
1430     o split initialise() into initialise_fixed() and initialise_varia()
1431     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1432       in new routine ini_psurf()
1433    
1434    checkpoint26
1435     o moved some #ifdef in optional routines to encompass everything
1436       except the argument declarations. This was using up some memory.
1437     o fixed macros like _ADT to work with both versions of Linux cpp
1438     o cleaned up some unused and uninitialized variables
1439       (helps when debugging with strict compile options)
1440     o split up CPP_EEOPTIONS.h into options and macros
1441       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1442     o patch for 2 processor JAM mode
1443    
1444    checkpoint25
1445     o updates for OBCs and NH
1446     o dramatically reduced memory usage
1447     o added "JAM" routines for use on Artic network
1448     o parameterization of convection by implicit vertical diffusion
1449     o added a diagnostic of convective index
1450     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1451       (this is was partly for OBCs and NH but also in anticipation of
1452        an explicit free-surface option)
1453     o initial state input files for U and V
1454    
1455    checkpoint24
1456     o Removed some spurious "REAL"s
1457     o Updated KPP to latest version from JPL
1458     o Added a COS(latitude) in horizontal viscosity
1459    
1460    checkpoint23
1461     o Added del^4 diffusion for salt and temperature
1462     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1463    
1464    checkpoint22
1465     o Made many small changes: implicit none, format(i5), etc...
1466     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1467    
1468    checkpoint21
1469     o Introduced new I/O package that supports direct-access records (mdsio.F)
1470     o Split-up mid-level I/O routines
1471     o Updated input data for experiments 0,1,2,4 and 5
1472     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1473    
1474    checkpoint20
1475     o Tidied up open-boundaries some more
1476     o Added non-hydrostatic code
1477     o Fixed some input data
1478     o Modified MPI start-up to work in "coupled" context.
1479    
1480    checkpoint19
1481     o Tidied up directory structure for verification experiments.
1482     o Added new code for open boundaries.
1483     o Corrected advective terms near boundaries.
1484     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1485     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1486     o Split default parameters out of ini_parms.F into set_defaults.F.
1487    
1488    checkpoint18
1489     o Further changes for optional code generation with
1490       CPP - ugh!
1491    
1492    checkpoint17
1493     o Beginning to incorporating modularity
1494       for supporting atmos. and ocean configs.
1495     o Small changes for TAMC complinace
1496     o New ultra simple test case. Barotropic box
1497       configuration "exp0".
1498    
1499    checkpoint16
1500     o Minor changes to exchange routines to support
1501       accumulation in reverse mode. Adjoint of an
1502       assignment is an addition.
1503     o Changes to support compilation by TAMC (LR(1)
1504       syntax) and by g77 under Linux ( 72 character
1505       limit ).
1506    
1507    checkpoint15
1508     Rewrote exchange routines to allow
1509     o General tile <-> tile connectivity.
1510     o TAMC reverse mode flag ( is this really needed? )
1511     o Variable width overlap and exchange region widths.
1512     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1513       shmput/shmget, VIA, SYSV shmem and every other cool
1514       communication method.
1515    
1516    checkpoint14
1517     Consistent isomorphism chages made. These allow dynamical core
1518     to support both pressure and meters as a vertical coordinate.
1519    
1520    checkpoint13
1521     Release which corrects global_max problem and a couple
1522     of KGM time-averaging diagnostic errors. Also contains
1523     a double-gyre experiment setup as well as the baseline
1524     4 degree global template. The double gyre template is
1525     organised to allow it to be applied automatically to
1526     the baseline configuration.
1527    
1528    branch-point-rdot
1529     A few tidy-ups have been made bt the real point of this
1530     check-point (excuse the pun) is to allow a branch to be
1531     made for the purposes of adding the rDot alterations.
1532     I don't want to commit the rDot to the main-trunk until
1533     we've actually tested it...
1534    
1535    checkpoint12
1536     Tidy up and added generic genmake script (formerly
1537     configure script).
1538     Released to testers.
1539    
1540    checkpoint11
1541     Re-arranged initialise() and introduced ini_vertical_grid()
1542     and ini_masks_etc().
1543    
1544    checkpoint10
1545     Introduced the configure script.
1546     Separated out the diags package.
1547     Added template for writing time-averages of tile/intermediate quantities.
1548     Updated SIZE.h in exp2 and made the data big-endian.
1549    
1550  checkpoint9  checkpoint9
1551   MPI fix. Filename changes (meta/data). salbin*y stuff.   MPI fix. Filename changes (meta/data). salbin*y stuff.
1552   General tidy-up.   General tidy-up.

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