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revision 1.7 by adcroft, Mon Jun 22 16:24:50 1998 UTC revision 1.382 by jmc, Wed Nov 10 03:10:00 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 isolate dissipation tendency (allow to keep it out off AB) in V.I form.
7      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
8    o add consistent build directories and .cvsignore files to verification
9    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
10    o make all subroutines 30 or less characters in length for certain older
11      compilers to work (a thorough search only turns up two routines in
12      pkg/ptracers)
13    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
14      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
15    
16    checkpoint55i_post
17    o change arrays for total vertical diffusivity (2.D if explicit,
18      3.D if implicit) ; each ptracer uses its own background value.
19    o added mnc/NetCDF output capability to ocn_compon_interf
20      - added bits to verification/cpl_aim+ocn so that it can run on
21        ITRDA and other clusters without the mpirun "-wd" option
22    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
23      configuration
24    o give MNC the ability to create additional files rather than
25      exceeding a specified file size limit "MNC_MAX_FILESIZE"
26      - the default is just less than 2GB which is a practical limit
27        on many systems
28    o Compute the non-local term using either KPP vertical diffusivity (=default)
29       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
30    
31    checkpoint55h_post
32    o add verification test "vermix"
33    o remove all the *_ioinc flags and replace with the single global
34      outputTypesInclusive flag
35    o allow to set a vertical profile of vertical diffusivity for T & S
36    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
37    o useMNC moved from data.mnc to data.pkg
38    
39    checkpoint55g_post
40    o Renaming carbon AD experiments to comply with testreport conventions
41    o Updating adjoint of Held-Suarez hs94.1x64x5
42    o Fixing directives for non-ECCO forward_step, after ECCO directives
43      have been fixed to avoid recomp. of do_oceanic_phys
44      Works well for global_ocean.90x40x15,
45      but recomp. issue remains for carbon
46    o Updating adjoint output for natl_box_adjoint after
47      pkg/ecco has been modified (see taga c55d_post)
48    
49    checkpoint55f_post
50    o rename to timeave_init_fixed
51    
52    checkpoint55e_post
53    o some delicate re-shuffle of store directives to avoid one
54      extra call of do_oceanic_physics
55      affects ecco_the_main_loop.F, do_oceanic_physics.F
56      checkpoint_lev1_directives.h
57    o NB: this may break global_ocean adjoint temporarily,
58      but it is clear how to fix it. Will do later, need this now.
59    
60    checkpoint55d_post
61    o ECCO specific cost function terms (up-to-date with 1x1 runs)
62    o ecco_cost_weights is modified to 1x1 runs
63    o modifs to allow observations to be read in as
64      single file or yearly files
65    o enable to read exf forcing fields as either
66      single file or yearly files (flag useExfYearlyFields)
67    checkpoint55d_pre
68    
69    o switch between 2-level and 3-level checkpointing
70    o add ability of MNC to write local and "partial" (eg. 2D slices where
71      the full 3D field is never actually stored) arrays to NetCDF files
72      with the correct (that is, the complete multi-dimensional) set of
73      array indicies
74      - used in mom_vecinv() to write the diagFreq output
75      - tested (demonstrated) in verification/aim.5l_cs
76    o further mnc-ification
77      - add verification/lab_sea to the list with mnc setups
78      - fix undefined mnc v-names in cd_code
79      - add kpp to mnc output (both snapshot and timeave)
80    o non-hydrostatic code
81      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
82        in calc_gw.F
83      - defaults to viscAh
84      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
85        friction or Leith) in non-hydrostatic mode, as long as there is
86        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
87    o pkg/cost
88      extend simple cost functions to treat time mean quantities
89      (T,U,V) via cost_accumulate_state from cost_tile
90    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
91        be 2 times larger than the minimum size the advection scheme requires.
92        now get a perfect conservation of salt in advect_cs test-exp (updated)
93    o GGL90 (Gaspar's TKE mixed layer)
94      - add horizontal diffusion of TKE, requires exchanges in
95        do_fields_blocking_exchanges, horizontal diffusivity is zero by
96        default. In OPA there is no horizontal diffusion of TKE but the
97        mixing coefficients are computed from a horizontal average of TKE of
98        6 points or so. I think that diffusion has a little more physical
99        justification.
100      - clean up ggl90_calc in the hope of reducing memory usage (this hope
101        was in vain)
102      - mask tke-variable in ggl90_init
103    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
104    o fix biharmonic diffusion on CS-grid.
105    o more obcs stuff
106      - added obcs_external_fields_load as an alternative to the EXF-pkg option
107        for reading boundary values. This routine is called from
108        obcs_prescribe_read
109      - updated obcs_check
110      - changed sponge layer relaxation parameter units for days to seconds
111      - turned off sponge layer by default
112      - changed argument list of OBCS_CALC to myTime+deltaTclock
113      - fixed about 35 bugs in obcs_external_fields_load
114    
115    checkpoint55c_post
116    o obcs stuff
117      - new runtime flags useOBCSprescribe, useOBCSbalance
118      - re-arranged obcs_calc
119      - moved exf_getobcs to obcs_prescibe_read
120        obcs_prescibe_read is called after ORLANSKI stuff
121        and independent of it (executable can contain all).
122      - updated obcs_check
123      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
124        These may be necessary only if tangential velocities are
125        prescribed at OB, not sure, needs testing.
126    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
127      which simplifies the calls and passes the ifc check-bounds test
128    
129    checkpoint55b_post
130    o add a 2D scalar, Z location, exchange_2 routine.
131    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
132      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
133      affects advect_cs results (for the wrong reason): update output.txt
134    o use a more standard discretization for biharmonic viscosity ;
135     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
136      affects results of dome set-up: update output.txt
137    o fix gad_advection.F (CubedSphere part), back to version 1.23
138    o fix bug in mom_vi_del2uv.F (CubedSphere part).
139    
140    checkpoint55a_post
141    o merged code to
142      * prescribe/read time-dependent open boundaries
143        (works in conjunction with exf, cal)
144      * sponge layer code for open boundaries
145      * each boundary N/S/E/W now has its own CPP option
146        (healthy for the adjoint)
147    
148    checkpoint55
149    o up-to-date adjoint of previous breaks
150      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
151      - global_ocean_ebm: adjoint still needs fix (TLM ok)
152      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
153      - carbon: * remove tr1-related adjoint verification
154                * add ptracer as control variable
155    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
156      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
157    
158    checkpoint54f_post
159    o in verification/carbin/ remove experiment related to
160      ALLOW_PASSIVE_TRACER (array tr1 etc)
161      code_ad/ input_ad/ results_ad
162    
163    o add two new packages
164      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
165        + subject to optimization (memory)
166      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
167        + subject to reordering (many GOTOs in the original code)
168        + so far opps is called for every (i,j) point, and then operates in
169          the vertical; one may want to reorder the scheme in order operate in
170          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
171          fields)
172    o overhaul of IO so that we now have flags for MDSIO and/or MNC
173      - all verification tests compile and run with linux_ia32_g77
174      - defaults are compatible with current input files--nothing
175        should change if you were not previously using MNC
176      - MNC output has been added in numerous places (eg. timeave)
177        but there are still a few writes not yet do-able with MNC
178        (this is in progress)
179      - flags now allow for either/or/both use of MDSIO and MNC and
180        documentation will soon follow
181      - numerous small formatting cleanups for ProTeX
182    o add version info (via BUILD_INFO.h) to MNC and stdout
183    
184    checkpoint54e_post
185    o add two new packages
186      - pp81 (Packanowski and Philander, 1981), Richardson number and
187        stratification dependent mixing
188      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
189      - these scheme operate in a similar manner as KPP (without ghat, of
190        course), however there is only one diffusivity that is used for both
191        temperature and salinity (and passive tracers)ç
192    o add offline package
193    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
194      provided by Stephanie Dutkiewicz
195    o genmake2: add ability to search for C compilers and cleanup test output
196      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
197    
198    checkpoint54d_post
199    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
200    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
201      leading to additional shift by 5 days each year of integration
202       (i.e. leading to considerable offset over the years)
203    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
204    o start with no AB and no initial filtering (staggerTimeStep):
205      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
206    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
207      (external loading & cpl import/export stay in forward_step.F)
208    o update coupling interface to work with new staggerTimeStep
209    o change MDSIO ptracers_pickup.
210    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
211    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
212    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
213    
214    checkpoint54c_post
215    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
216      this affects (truncation error) output.txt of test-exp:
217       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
218    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
219    o change Qnet to always be the net heat flux, (+upward).
220      affects (truncation error) output of natl_box exp.: updated
221    o define the max number of passive tracers in PTRACERS_SIZE.h
222    o start to test mnc routinely in exp0
223    o add sea-ice loading (sIceLoad) as a new forcing field.
224    
225    checkpoint54b_post
226    o add testreport "-j JOBS" option for parallel builds (tested and pretty
227       impressive on Altix and Opteron systems)
228    o diagnostics can now write NetCDF files through the mnc package
229    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
230    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
231    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
232      affects (truncation error) output of lab_sea & natl_box exp.: updated
233    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
234    
235    checkpoint54a_post
236    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
237    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
238    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
239    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
240      + internal_wave (shift in writing cg2d_ini_res)
241    checkpoint54a_pre
242    
243    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
244      - modified verification/lab_sea and natl_box_adjoint accordingly
245    
246    checkpoint54
247    checkpoint53g_post
248    o prepare splitting of thermodynamics: store convect.counter in common block
249    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
250      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
251    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
252    o new parameter "nShapS": allow to treat differently S from T (nShapT)
253    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
254    o restore adjointability
255    
256    checkpoint53f_post
257    o modifications that affect AIM experiment results (update output.txt):
258      - no advection of S at top interface Nr (pkg/generic_advdiff)
259      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
260    o AIM pkg:
261      - include stability function into surf.Flux derivative relative to Tsurf
262      - calculate clear-sky radiation & surface temp. change (for diagnostics)
263    
264    checkpoint53e_post
265    o merged cylindrical coord configuration
266    o added rotating_tank experiment
267    checkpoint53e_pre
268    
269    checkpoint53d_post
270    o faulks upgraded: re-generate output.txt that have changed:
271       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
272    o Added Bryan and Lewis, 1979, vertical diffusivity profile
273    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
274    o added Sadourny discretization of Coriolis
275      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
276      - re-enabled use of omega3 (useAbsVorticity)
277    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
278      vector-invariant equations
279      - note: does *NOT* yet use same variable visc. for no-slip BC's.
280    o recoded the lateral boundary conditions for non-hydrostatic w, this time
281      hopefully without new bugs
282      - still to do: biharmonic friction for non-hydrostatic w
283    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
284    o regenerated output for global_ocean_ebm (using -ieee)
285    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
286      of mom_common/
287      - simple re-arrangement of instructions within computing loop
288    checkpoint53d_pre
289    
290    checkpoint53c_post
291    o new version of coupler for AIM+thSIce and Ocean models
292     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
293     - land: change Evaporation of snow
294     - aim with thSIce: fix bug in snow-precip.
295    o changes to calc_gw.F
296     - bug fix for w^2 term near the bottom boundary
297     - (hopefully) improve the lateral slip boundary condtions for use with
298        partial/looped cells
299      - because the bug fix changes two verification experiments anyway (exp5
300        and plume on slope), change the lateral boundary condition from half slip
301        to the value of no_slip_sides
302    o ebm package wasnt quite up to the parallel task. Fixed that.
303    o Adjoint of EBM package + verification
304      * TLM OK
305      * ADM not sufficient accuracy yet (needs further testing)
306    
307    checkpoint53b_post
308    o Commiting new energy balance model to repository
309      * package is pkg/ebm
310      * verif. is verification/global_ocean_ebm
311      * references are in ebm_driver.F
312    C      * X. Wang, P. Stone and J. Marotzke, 1999:
313    C        Global thermohaline circulation. Part I:
314    C        Sensitivity to atmospheric moisture transport.
315    C        J. Climate 12(1), 71-82
316    C      * X. Wang, P. Stone and J. Marotzke, 1999:
317    C        Global thermohaline circulation. Part II:
318    C        Sensitivity with interactive transport.
319    C        J. Climate 12(1), 83-91
320    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
321    C        Destabilization of the thermohaline circulation
322    C        by atmospheric eddy transports.
323    C        J. Climate 7(12), 1870-1882
324    o Will need long integration testing.
325    checkpoint53b_pre
326    
327    o created pkg/mom_common in preparation for variable viscosity code
328    o renamed and split ini_mnc_io
329    o pkg/land: only liquid water can diffuse or run-off
330    o AIM using land: soil wetness availability account for snow
331    o added printMapIncludesZeros to EEPARMS namelist
332    
333    checkpoint53a_post
334    o restore TAMC compatiility for exf_constants.h
335      (no usage of _d in .h)
336    o Additional storing in KPP in an attempt to fix
337      TAMC problem with adjoint of KPP code.
338      (no success...)
339      Identical code works fine with TAF.
340    o Fixed verification/natl_box_adjoint experiments.
341      Initial conditions for Experiments 4 and 5 are now
342      set to "SEAICE_initialHEFF=0", which is more reasonable,
343      and hence gives results closer to that of Experiment 2.
344      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
345    
346    checkpoint53
347    o stable checkpoint with up to date adjoint
348      TLM tests only run for 1st grdchk at the moment. Its unclear if
349      this is a code problem or a problem with resetting code for g_
350      variables that is being autogenerated wrong.
351      Otherwise:
352       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
353       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
354         are both still in chaos following their security messes.
355    
356    checkpoint52n_post
357    o various build (mostly genmake2) changes including:
358      - ability to build/run more easily within Cygwin and MacOS X
359      - more complicated Makefiles with a stronger dependence on Gnu Make
360    o pkg/seaice modifications
361      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
362        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
363        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
364      - changed proxy for geostrophic velocity and updated
365        verification/lab_sea/results/* accordingly
366      - removed ADI dynamic solver from pkg/seaice
367      - replaced all occurrences of 1/CSTICE or 1/CSUICE
368        they caused a segmentation fault under certain circumstances
369      - removed unused field WATR
370    o bug fix in exf-package:
371      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
372         now reflect that.
373    o small fixes in the cal-package:
374      - set reference date to first of January for the 'model'-calendar
375      - failing of cal_CheckDate in cal_FullDate now actually results in a
376        warning
377    o small modifications in exf-package to increase flexibility:
378      - change climtempfreeze from a constant to a runtime parameter that
379        is specified in data.exf_clim (default = -1.9)
380      - introduce runtime parameter windstressmax (default = 2.0) that is
381        specified in data.exf
382    o fix in pkg/thsice:
383      - update Evap (Tsf changes) to be consistent with Latent heat flux
384      - maintain snow precipitation unchanged (even if Tsf >=0).
385     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
386    
387    checkpoint52m_post
388    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
389      this does not change any of the results, because myIter=0 in swfrac always
390      lead to jwtype=2 (the default anyway), but the call makes little sense
391      as a default
392    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
393    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
394      atmospheric model (AIM) to use it ; add a "slab ocean" component.
395    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
396    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
397    o extending useSingleCpuIO option to work with new exch2 I/O format
398      - old-style, missing-tile I/O is still accessible by defining CPP
399        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
400    o monitor package can write to NetCDF files and/or STDOUT
401    o fix re-definition bug in MNC_GRID_INIT_ALL()
402    o doc/api_reference added
403      - a framework for building an API Reference Manual using all
404        the "protex" comments embedded in the code
405      - see pkg/generic_advdiff, pkg/mnc for examples
406    o MNC:
407      - make myThid the last argument for all subroutines
408      - new default for the grid files: NO halos
409      - add useMNC and other run-time flags
410      - separate per-file-group handling of the unlimited dimension
411      - early initialization of MNC w/ flags read at the eeboot stage
412        and lookup tables set in initialize_fixed
413      - write all MNC output to a freshly-created directory
414    o thermodynamics sea-ice (thsice) is now tested with testreport.
415    o test exp. advect_cs: use the standard cs32 grid ; update output.
416    o Added functionality to grdchk:
417      pick global i,j,k position (or nearest wet) where to perform check.
418    
419    checkpoint52l_post
420    o new land formulation:
421      a) use ground enthalpy as prognostic variable to ensure exact
422         energy conservation.
423      b) account for water temperature and for latent heat of freezing
424         in all processes (rain, run-off, ground storage)
425      c) compute surface and ground temperature implicitly.
426    o aim_v23 modification for new land model:
427      a) Treat separately land / ocean / sea-ice surface fluxes
428         to allow implicit computation of land & sea-ice surface temp.
429      b) add snow precipitation.
430    checkpoint52l_pre
431    
432    o fix problem (when 1 tile is empty) in min/max monitor.
433    o fix bug in timeAve (u,vZetatave in common block)
434    o no restoring terms under ice for pkg/seaice
435    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
436    o bug fix for pkg/seaice pickups
437    o change MNC call locations and add coordinate attributes
438    o mask vorticity at the corner ; affects global_ocean.cs output
439    o fix ini_curvilinear_grid ; test CS experiments with mpi
440    o aim.5l_cs: modify sea-ice fraction input file ; update output
441    o exf: Adding simple range check routine for exf fields after read
442    
443    checkpoint52k_post
444    o removed top-level directory "diags"
445      - we migrated these functions to pkg/timeave a long time ago
446    o fixed bug introduced in pkg/monitor
447    o accuracy ctrlprec = 32 insuffient for gradient checks using
448      averaged fields (I/O via cost_averages)
449      -> use ctrl.h in active_file*.F to control I/O precision.
450    o paramter list of CALL ADTHE_MAIN_LOOP
451    o added initial do_the_model_io to ecco
452    o set all ...Freq to zero after cost_final
453      taveFreq, dumpFreq, pChkptFreq
454    o MAIN and ECCO differentiability restored
455    
456    checkpoint52j_post
457    o fix nchklev in tamc.h for global_ocean...
458    o Bringing flow and store directives up-to-date
459    o Really weird thing!
460      call do_the_model_io from the_main_loop with parameters
461      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
462      TAF places a faulty re-call of initialise_varia
463      after cost_final call which should not be there!
464    checkpoint52j_pre
465    
466    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
467      error messages
468    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
469    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
470      debug output
471    o modfied mdsio_writefield.F to handle non-global files under exch2
472    o update AIM Cubed-Sphere exp (aim.5l_cs):
473      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
474    o update AIM Equatorial Channel exp:
475      use standard aim_v23 pkg and change the SST fields to be more realistic.
476    o globalFile now works with exch2
477    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
478      mon_vort3.F to make exch2 friendly with >1 tile per cube face
479    o limit timeave output for hi-res integrations
480    
481    checkpoint52i_post
482    o removed CPP_EEOPTIONS.h from verification/*/code
483    o updated the tiling for global_ocean_pressure
484    checkpoint52i_pre
485    
486    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
487      the old pkg/aim).
488    
489    checkpoint52h_pre
490    o shortened offending lines in exch2_send_rx?.template
491    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
492    o genmake2: add build & execute test for NetCDF code
493    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
494      old grid files, moved CPP_EEMACROS.h to pkg/exch2
495    o added useSingleCPUIO flag to monitor.F and mon_out.F
496    o added temporary hack for sea-ice dynamics on the cube:
497      metric terms are ignored and it is assumed that
498      there is no sea-ice on cube faces 1, 2, 4, and 5.
499    
500    checkpoint52f_post
501    o added exch2 cube routines to pkg/exch2
502    o modified hs94.cs-32x32x5 to use it
503    o added new grid files to hs94.cs-32x32x5
504    checkpoint52f_pre
505    
506    checkpoint52e_post
507    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
508      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
509    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
510      to work with implicit vertical advection and AB ;
511    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
512    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
513     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
514    checkpoint52e_pre
515    
516    o fix bug in impldiff when Nr=1 or Nr=2.
517    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
518    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
519    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
520      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
521    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
522    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
523    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
524    
525    checkpoint52d_post
526    o re-tiled many expts to allow comparison in multi-processor mode
527      - updated output accordingly
528      - changed hs94.128x64x5 to use intial T from file rather than use the
529        random number generator
530    o add infrastructure in model routines for fizhi and gridalt packages
531    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
532    o changes to permit hi-res, cubed-sphere, configuration
533      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
534      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
535      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
536        of surface winds for the cube
537      (A verification experiment, based on global_ocean.cs32x15, but with
538       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
539       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
540       complete with example surface forcing files and matlab scripts to look
541       at the output and compare it with that of global_ocean.cs32x15.)
542    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
543       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
544       to conform to the common rule.
545    o check-in the first version of the coupler + interfaces for multi-components
546       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
547       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
548       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
549       - ocean and atmos. share the same horizontal grid (no interpolation).
550       - exchanges between component and coupler is done in forward_step
551    o new verification experiment, cpl_aim+ocn:
552       coupled ocean - AIM atmosphere on cs32 grid.
553    
554    checkpoint52d_pre
555    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
556    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
557    
558    checkpoint52c_post
559    o Fixing OPTIONS files for use of exf:
560      - ALLOW_ECCO not needed
561      - ECCO_CPPOPTIONS.h should not be included from
562        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
563        as has been the case in the past
564      - All cal/exf related options are currently set in
565        single header file. Should remain so until we
566        agree on a consistent new policy.
567    o Removed all CPP options for cal package.
568      cal has no more CPP options.
569    o modified STOREs in GAD_ADVECTION
570    o corrected key comp. for passkey
571    
572    checkpoint52b_post
573    o new version: "thsice" of thermodynamic sea-ice pkg:
574     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
575     - modify fluxes but do not change theta directly;
576     - light cleaning of bulk_force pkg (still needed with thsice).
577     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
578       + output_thsice.txt to test thsice & bulk_force pkgs.
579    o put back grid & coriolis monitor output.
580    checkpoint52b_pre
581    
582    o call "do_the_model_io" at the beginning (=> dump initial state)
583    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
584    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
585      (need info on NUMBER_OF_PTRACERS)
586    o missing PTRACERS headers in some routines
587    o default tamc.h in pkg/autodiff supposed to crash
588      to ensure proper customization
589    
590    checkpoint52a_post
591    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
592      - moved surfaceTendencyTice from pkg/seaice to main code
593      - subroutine FREEZE_SURFACE now limits only surface temperature
594        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
595        => new output.txt for global_ocean.cs32x15 & global_with_exf
596      - keep the old version of FREEZE for backward compatibility;
597        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
598      - corresponding modifs for TAF directives
599    o added surface flux output variables to TIMEAVE_STATVARS
600    o time-averaged output for pkg/ptracers
601    o fix problem with ECCO-related divided adjoint
602      snapshot file was missing some ad-variables,
603      but no warning issued by TAF
604    
605    checkpoint52a_pre
606    o some bug fixes for #undef REAL4_IS_SLOW
607    
608    checkpoint52 = ecco_c52_e35
609    o after testing adjoints of checkpoint51u_post
610    
611    checkpoint51u_post
612    o this is the post-merge tag of the ecco-branch
613      (needs another clean checkout and re-testing)
614    o various natl_box_adjoint configs and results
615      but no input fields
616    o obcs adjoint not yet merged!
617    o adding ECCO global 1x1 and 2x2 degree configs
618    o updated/extended some store directives for seaice
619    o pkg/ecco now containes ecco-specific part of cost function
620    o top level routines the_main_loop, forward_step
621      supersede those in model/src/
622      previous input data.cost now in data.ecco
623      (new namelist ecco_cost_nml)
624    o in ctrl/ cleaned some cross-dependencies and updated CPP options
625    
626    checkpoint51t_post
627    o this is the pre-merge tag of the ecco-branch
628    
629    checkpoint51s_post
630    o cleanup: removed various obsolete #define-s
631    o pkg/grdchk
632      - renamed 'ph-grd 3' to 'grad-res'
633      - merged from ecco-branch
634        (remaining bug fixes for obcs gradient checks)
635      - additional high-precision output for testreport
636        (grep for 'precision_grdchk_result')
637    
638    checkpoint51r_post
639    o cleaned up or removed CPP_OPTIONS.h files
640    o updated results for some of the tests to reflect the new
641      optfiles (-ieee: -O0 instead of -O3)
642    
643    checkpoint51q_post
644    o cd_code:
645      - moved cd_scheme.F -> cd_code_scheme.F
646      - separate read_checkpoint from cd_code_ini_vars.F
647      - separated cd_code part from write_checkpoint
648      - updated AD_SOURCE, generated .flow
649      - added CD_CODE_VARS.h to the_main_loop
650      - Moving cd_code specific store dir.s to pkg/cd_code
651    o ctrl package totally restructured
652      - pack/unpack now optional and decoupled from
653        xx_/adxx_ I/O
654      - ctrl_pack/unpack cleaned
655        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
656      - confined inclusion of AD_CONFIG.h to where necessary.
657    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
658    
659    checkpoint51p_post
660    o create initial cd_code package
661      - WARNING: the initialization of fields within packages
662        is broken because INI_FIELDS (where READ_CHECKPOINT is
663        called) is called *before* PACKAGES_INIT_VARIABLES.
664        This seems to be backwards since
665        1) its important to initially zero the entire field including
666           the "halo" region
667        2) zeroing needs to be done *before* reading pickup info
668           and the pickup call might or might not happen in any
669           particular run
670      - this needs an overhaul for R2
671    o cleanup verification/*/code/GMREDI_OPTIONS.h
672    o cleanup testreport
673    
674    checkpoint51o_post
675    o bringing AD-related verif's up to date with genmake2
676      - carbon/
677      - global_ocean.90x40x15/
678      - hs.94.1x64x5/
679      - (front_relax/ )
680    o (more) consistent directory structure for AD-related verif.'s
681    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
682    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
683    o bug fix in find_alpha.F for MDJWF:
684      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
685        change rho -> rho-rhoConst
686      - replace call find_rho to find_rhonum
687    o initialisation of rFlx extended to full array (required by TAF)
688      and shifted to thermodynamics
689    o removed PTRACERS.h in ptracers routine
690    o added surfacetendencyPtr to S/R parameter list pracers_forcing
691    o Correcting initialisations for fVerU, fVerV.
692    o helping TAF to recognize dependency on kUp for
693      fVerU, fVerV
694    o Replacing delZ by delR in pkg/ctrl/
695    checkpoint51o_pre
696    
697    o undid all of cp51 pending some cleanups and discussion
698    o added the [#include "AD_CONFIG.h"] statement to all files that need
699       it for adjoint/tl #defines
700     o re-worked the build logic in genmake2 to support AD_CONFIG.h
701     o removed tools/genmake since it no longer works
702    
703    checkpoint51n_post
704    o modifications to make FREEZE flux visible to pkg/kpp
705      - moved surfaceTendencyTice from pkg/seaice to main code
706      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
707      - subroutine FREEZE now limits only surface temperature
708        (this means new output.txt for global_ocean.90x40x15,
709         global_ocean.cs32x15, and global_with_exf)
710    o added surface flux output variables to TIMEAVE_STATVARS
711    
712    checkpoint51n_pre
713    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
714    o added [#include "AD_CONFIG.h"] to all files that use the following
715      defines:
716      - ALLOW_ADJOINT_RUN
717      - ALLOW_TANGENTLINEAR_RUN
718      - ALLOW_ECCO_OPTIMIZATION
719    
720    checkpoint51m_post
721    o incorporating changes to get TAMC/TAF working in genmake2
722      - added new TAMC/TAF targets to the Makefile
723      - various cleanups related to package handling
724      - these changes should have no impact on the forward model
725    
726    checkpoint51l_post
727    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
728     - faster algorithm for cal_addtime.F
729     - higher precision arithmetic, where needed
730     - pkg/exf *startdate variables changed from calendar date to
731       model integration time
732    
733    checkpoint51l_pre
734    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
735    o enable to apply restoring on S & T only in a latitude band.
736    o update output (external_forcing_surf modif. change truncation errors)
737       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
738    
739    checkpoint51k_post
740    o change default to: useNHMTerms=.FALSE.
741     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
742       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
743     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
744        exp1, ideal_2D_oce
745     - change data file of oceanic exp (leave the results unchanged for now)
746       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
747    o set gravitySign automatically according to the vertical coordinate used
748      (and change sign: back to "logical" value: +1 when R increases downward)
749    o added an include barrier to the default CPP_OPTIONS.h and
750      removed the #include "PACKAGES_CONFIG.h" from it
751    o fix a bug in mom_fluxform (from chk51j_post)
752    
753    checkpoint51j_post
754    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
755    o adjusted some flow directives (dynamics, thermodynamics)
756    o added cubed-sphere case to test cost function
757    o heckpoint_lev?_directives.h now include
758      pkg-specific directives, whenever those are enabled.
759    o Moving pkg-specific flow directives to corresponding pkg
760      Moving pkg-specific differentiation list to corresponding pkg
761      Moving pkg-specific checkpoint-lev storing to corresponding pkg
762      ---> conventions are
763           - pkg_ad.flow
764           - pkg_ad_diff.list
765           - pkg_ad_check_lev?_dir.h
766    
767    checkpoint51i_post
768    o merge of the branch-genmake2
769      - knowingly breaks the older genmake
770      - automatic generation of all ALLOW_${PKG_NAME} defines
771      - new testreport supersedes older testscript
772    o large number of package inclusion and header cleanups
773    checkpoint51i_pre
774    
775    o new output for adjoin of global ocean vector invariant
776    o fix for checkpoint of thermodynamic seaice and bulk_force
777    o Steph gchem various cleanups
778    
779    checkpoint 51h_pre
780    o fixed some single quotes
781    o modify gchem pkg to be more versatile
782    o modifications to clean up dic pkg
783    o add pkg/cfc
784    
785    checkpoint51g_post
786    o provide links for ARPACK and ADM*TLM
787    o start removing verification/vero/
788    o update AD-related stuff
789      (in particular some IF-statements in model/src/ routines)
790    o adding to verification/global_ocean.90x40x15/ adjoint of
791      vector invariant setup
792    
793    checkpoint51f_post
794    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
795    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
796      of tracer Green's fucntions for ocean inversion project.
797    
798    checkpoint51f_pre
799    o Added on-the-fly spatial interpolation capability
800        "USE_EXF_INTERPOLATION" to pkg/exf.
801      - This is a temporary Cartesian-grid hack until
802        the super-duper ESMF coupler becomes available.
803      - See verification/global_with_exf/README for usage example.
804      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
805        flags and modified pkg/seaice accordingly.
806    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
807        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
808        non-local transport term.
809    
810    checkpoint51e_post
811    o pkg/mom_vecinv:
812      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
813      - add time-ave diagnostic of vorticity advection.
814    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
815    o atmospheric geopotential: - include water vapor effect;
816                                - use p^kappa in p* scaling.
817    o land pkg: read initial state from files.
818    o AIM : add stratospheric drag in the upper level
819    
820    checkpoint51d_post
821    o change function ILNBLNK (=> last non-blank char.) to return zero
822      (instead of the string length) when the string. char is empty
823    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
824    o modif's to restore TAMC compatibility
825      - avoid "_d" constructs in PARAMETER declarations
826      - avoid interrupting lines by comment lines
827    o Use cluster local disks for purely local I/O
828      vs. globally visible disks needed for ctrl stuff
829      (merged from ecco-branch)
830      - new active_file_loc... and mdsio_..._loc routines
831      - affected packages: autodiff, ctrl, grdchk, mdsio
832    
833    checkpoint51c_post
834    o introducing integer flag debugLevel
835      - debLevZero: suppress all output
836      - debLevA: standard
837      - debLevB: equivalent to current debugMode=.TRUE.
838    o introducing pathname variable mdsioLocalDir for mdsio
839      that can be specified at runtime
840      (relevant for cluster I/O to local disk)
841    `
842    >>>checkpoint51b_post
843    adjoint of ptracers
844    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
845    o extended state in checkpoint_lev?, etc.
846    o alternative ctrl/cost with tr1 or ptracer
847    o new comlev1_bibj_ptracers
848    o new ptracers.flow
849    o made ptracers_forcing same as external_forcing_s
850    o added verification for adjoint with ptracers
851      - adm. grdchk fail so far
852      - tlm. grdchk OK
853      - checked tapelev/comlev recomputations: OK
854    <<<checkpoint51b_pre
855    
856    checkpoint51a_post
857    o added code for biogeochemistry package
858      - new pkgs: dic, gchem
859      - new subroutine in ptracers
860    o modify code for biogeo packages
861      - in model/src and pkg/ptracers
862    
863    checkpoint51
864    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
865      - autodiff, ctrl, exf, grdchk, seaice
866      kept separate packages
867      - cost, ecco, obcs
868    o updating verification/internal_wave, verification/lab_sea
869      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
870    
871    checkpoint50i_post
872    o Preparing next differentiable checkpoint and sync
873      of MAIN vs. ecco-branch
874      - 1st step: this one is differentiable
875      - 2nd step: next(! not this) checkpoint will have updated packages
876                  from ecco-branch)
877    
878    checkpoint50h_post
879    o new package "land": provide surface BC for AIM.
880    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
881    o AIM: use true log-P extrapolation for near surface temp (= as in
882        F.Molteni paper) ; update aim.5l_cs output.
883    o New variable in PARM03 for more flexible pickups
884    o somewhat cleaned package initialisation sequence for
885      ctrl/ cost/ ecco/ in packages_... routines
886    
887    checkpoint50g_post
888    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
889      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
890      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
891        made the default because of faster convergence than ADI
892    
893    checkpoint50f_post
894    o exf totally restructured
895      - replaced all exf_set_ routines by one generic exf_set_gen.F
896        and made sure it's still differentiable
897      - split exf_getffields.F into new exf_bulkformulae.F
898      - exf_inscal_/exf_outscal_ suffixes consistent with field names
899      - updated adjoint/makefile and relevant verif. accordingly
900    
901    checkpoint50f_pre
902     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
903          + change Evap over land. (update aim.5l_cs output)
904     o added missing .cvsignores and made uniform across expts
905     o changed configuration of tidal_basin_2d expt
906     o added pkg/debug functions for tracing code in fatal crashes
907     o tidied pkg/monitor to use MONITOR_OPTIONS.h
908     o new fn in pkg/monitor to stop model if solution grows too big
909     o removed lots of single quotes from comments
910    
911    checkpoint50e_post
912    o make KPP work with PTRACERS
913     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
914       nearly a copy of kpp_transport_s
915     - there is no analogue to SurfaceTendencyS, so I have to use
916       gPtr(of the surface layer) instead
917    o add a new platform SunFire+mpi (SunFire 15000) to genmake
918    checkpoint50e_pre
919    
920    checkpoint50d_post
921    o change kpp output from multiple-record state files to single-record state
922      files analogous to write_state.F
923    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
924      analogous to the cg2d-related output.
925    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
926      so that writing to internal file fn (with length 512) fails.
927    checkpoint50d_pre
928    
929    checkpoint50c_post
930    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
931    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
932    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
933    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
934    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
935    
936    checkpoint50c_pre
937    Merging from release1_p13:
938    o bug fix for pkg/seaice dynamic solver
939    o Added SEAICE_initialHEFF to pkg/seaice
940    
941    checkpoint50b_post
942    o store u*,v* in gU,V instead of in guNm1,gvNm1
943    o in order to put the momForcing out of the Adams-Bashforth:
944      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
945      to timestep.F
946    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
947    o re-generate output for highly sensitive test-exp:
948       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
949    
950    checkpoint50b_pre
951    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
952    o corrected CPP option mismatch in exf_Bulk... functions for case
953      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
954    
955    checkpoint50a_post
956    o Bug fix for merging between c50 and KPP.
957      ikey was passed from thermodynamics to kpp_calc via
958      common block rather than being recomputed in kpp_calc,
959      in contradiction with new key itdkey.
960      New key ikppkey created, and tamc.h headers updated.
961    
962    checkpoint50
963    - 2nd step of merge with ecco-branch:
964      merge changes in ecco-branch back into main trunk
965    - bug fix in find_alpha
966    - more storing in gmredi_calc_tensor.F, kpp_routines.F
967    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
968    - merged some sliced AD support routines
969    
970    checkpoint49
971    merged from ecco-branch:
972    o exf:
973      - Enable initialisation of forcing fields to constant
974        (runtime) values.
975      - in exf_getffields.F
976        Reduce i-/j-loop to interior domain, discarding overlaps.
977        That also fixes wrong TAF-key computations for key_1, key_2
978        with bulf formulae.
979      - exf_init.F modify #ifdef for exf_init_evap
980      - exf_getffieldrec.F, ctrl_getrec.F
981        The following INT-usages are not safe:
982          fldsecs  = int(fldsecs/fldperiod)*fldperiod
983          fldcount = int(fldsecs/fldperiod) + 1
984        and were modified.
985    o autodiff: checkpoint_lev...
986      - updated storing for bulk formulae (some arrays were missing)
987      - added state for seaice package
988      - synchronized with main branch
989    o DIVA:
990      Modif.s in
991      - the_main_loop.F
992      - the_model_main.F
993      and added cost_final_restore.F cost_final_store.F
994      o With these changes, it is possible to fully separate
995        the first forward run to compute the cost function (mdthe_main_loop)
996        and adjoint runs over individual DIVA intervals (adthe_main_loop)
997        into separate model executions.
998        This enables better tuning of DIVA to given queue sizes.
999      o Loss of cost function value in consecutive DIVA runs is
1000        fixed by storing to 'costfinal' file.
1001      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1002        beginning/end of adjoint integration is accounted for.
1003      The current changes apply to TAF-1.4.26.
1004      TAF has one remaining bug, requiring one manual change
1005      (see MITgcm manual).
1006    o cal: synchronized between MAIN and ecco-branch
1007    
1008    checkpoint48i_post
1009    o Changes to restore differentiability of code w.r.t. previous tag
1010      (mostly adding new routines to make list and replacing
1011      pressure by totPhiHyd).
1012    o Updated and merged grdchk package
1013      - has both ADM and TLM checks
1014      - works for single- and multi-proc.
1015      - output cleaned
1016      - worked successfully for parallel DIVA
1017    o genmake:
1018      - Adding -platform=SP4
1019      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1020    o Modif. for DIVA:
1021      ctrl_unpack should not be called in intermediate DIVA interval.
1022      (similar thing would apply for active files such as
1023      tbar, sbar, psbar, which should not be reinitialised;
1024      only relevant for ecco-branch)
1025    
1026    checkpoint48h_post
1027    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1028    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1029    o Added SEAICE_initialHEFF to pkg/seaice
1030    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1031    
1032    checkpoint48g_post
1033    --- EOS:
1034    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1035      store total Potential in totPhyHyd for diagnostics & EOS.
1036    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1037    --- Pressure/geopotential gradient:
1038    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1039    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1040      ( changes results of global_ocean_pressure )
1041    o NLFS + z-coord.: add eta*Rho' contribution.
1042    o accurate phiHyd when using interface-W at the middle between 2 centers
1043     ( changes results of ideal_2D_oce )
1044    o includes r* 2nd term in potential gradient.
1045    
1046    checkpoint48f_post
1047    Merging from release1_p12:
1048    o Modifications for using pkg/exf with pkg/seaice
1049      - improved description of the various forcing configurations
1050      - added basic radiation bulk formulae to pkg/exf
1051      - units/sign fix for evap computation in exf_getffields.F
1052      - updated verification/global_with_exf/results/output.txt
1053    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1054      (SBO) core products, including oceanic mass, center-of-mass,
1055      angular, and bottom pressure (see pkg/sbo/README.sbo).
1056    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1057      to avoid negative values in shallow regions.
1058      - updated verification/natl_box/results/output.txt
1059      - updated verification/lab_sea/results/output.txt
1060    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1061    o Added useSingleCpuIO option (see PARAMS.h).
1062    o Updated useSingleCpuIO option in mdsio_writefield.F to
1063      work with multi-field files, e.g., for single-file pickup.
1064    o pkg/seaice:
1065      - bug fix in growth.F: QNET for no shortwave case
1066      - added HeffFile for specifying initial sea-ice thickness
1067      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1068    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1069      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1070    o pkg/seaice:
1071      - adjoint-friendly modifications
1072      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1073    
1074    checkpoint48e_post
1075    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1076    o dynamics: change definition of computational domain & adapt mom_fluxform
1077      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1078    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1079        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1080        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1081        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1082        inverted_barometer solid-body.cs-32x32x1
1083      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1084    
1085    checkpoint48d_post
1086    o in preparation for r*:
1087     a) use pre-computed gradient of hydrostatic potential:
1088        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1089     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1090        => affects results of glob_oce_pressure (different truncation error)  
1091      update output.txt of ideal_2D_oce & global_ocean_pressure
1092    
1093    checkpoint48d_pre
1094    o in preparation for r*:
1095      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1096      pass the 2 comp. of the grad. as arguments to momentum S/R.
1097      but for the moment, only used if it does not change the results.
1098    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1099    
1100    checkpoint48c_post
1101    Modifications in treatment of initial flux forcing controls
1102    to avoid extra storing of flux fields.
1103    
1104    checkpoint48c_pre
1105    o Added tidal_basin_2d experiment (currently 1D!)
1106    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1107    
1108    checkpoint48b_post
1109    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1110     (modification to pressure gradient not yet implemented)
1111    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1112      (for U & V) that are used for vertical advection of momentum.
1113    
1114    checkpoint48a_post
1115    o In preparation for r*, use temp. array to compute vertical transport
1116       in flux-form momentum pkg. => change results of few test-exp.
1117      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1118                        lab_sea, natl_box & plume_on_slope
1119    
1120    checkpoint48
1121    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1122    
1123    checkpoint47j_post
1124    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1125    o moved adexch from forward_step to addummy_in_stepping
1126    o added exch in ctrl_map_...
1127    o aveFreq.=0. at end of cost_final to avoid overwrite in
1128      reverse checkpointing loop
1129    o Yet more changes in gmredi:
1130      * adgmredi_calc_tensor
1131        avoiding all recomputation of gmredi_slope_limit
1132      * adgmredi_x/y/rtransport
1133        added flag for excessive storing to avoid recomp. of
1134        u/v/rtans, dTdx/y/z
1135        -> this is not really necessary and very memory-consuming
1136      * adgmredi_slope_psi:
1137        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1138      * gmredi_slope_limit
1139        re-activated full calculation of taperfct for case 'ac02'
1140    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1141    
1142    checkpoint47i_post
1143    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1144    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1145      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1146    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1147    o gmredi: fix few bugs.
1148    
1149    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1150    This will be a good checkpoint to plug into the ecco-branch.
1151    o few modif.'s to get latest version adjointed
1152      (mainly kick out code in ini_linear_phisurf)
1153    o modif's to run adjoint with exactConserv
1154    o case GM_BOLUS_ADVEC should be cleaned
1155      S/R gmredi_slope_psi should be cleaned
1156    o verification/carbon now has exactConserv=.TRUE.
1157    
1158    checkpoint47g_post
1159    o time-average AIM output: becomes independent from statvars time-average
1160      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1161    o After TAF bug fix:
1162      Tested adjoint of gmredi package.
1163      Tests were done with checkpoint47 rather than with latest
1164      checkpoint47f_post since the latter is broken for the adjoint
1165      verification/carbon/ contains both ADM and TLM gradient checks.
1166    Here they are, before they get changed/lost/stolen.
1167    Mostly modif.'s to fix numerical sensitivities.
1168    Gradient checks OK for
1169    - GM_taper_scheme:
1170      * clipping
1171      * ac02
1172      * linear
1173      * glw91
1174      * dm95
1175      * ldd97
1176    - GMREDI_OPTIONS:
1177      * GM_VISBECK_VARIABLE_K
1178      * GM_NON_UNITY_DIAGONAL
1179      * GM_EXTRA_DIAGONAL
1180      * GM_BOLUS_ADVEC
1181    in conjunction with data.gmredi parameters to be checked in
1182    in a few minutes under verification/carbon/code/
1183    
1184    checkpoint47f_post
1185    Merging from release1_p10:
1186    o modifications for using pkg/exf with pkg/seaice
1187      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1188        and SEAICE_EXTERNAL_FLUXES
1189      - pkg/exf CPP options EXF_READ_EVAP and
1190        EXF_NO_BULK_COMPUTATIONS
1191      - usage examples are Experiments 8 and 9 in
1192        verification/lab_sea/README
1193      - verification/lab_sea default experiment now uses
1194        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1195    
1196    checkpoint47e_post
1197    o created a tag prior to creating a branch
1198    
1199    checkpoint47d_post
1200    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1201      at the bottom boundary had an erroneous half slip boundary condition
1202    o added bottom drag and no slip boundary condition capabilities to
1203      oceanic pressure coordinates code
1204    o added new verification experiment global_ocean_pressure, this experiment is
1205      also described in the tutorial section of the manual
1206    checkpoint47d_pre
1207    
1208    checkpoint47c_post
1209    o Added a verification experiment for a global cubed-sphere ocean run
1210      -  verification/global_ocean.cubed32x32x30
1211      -  uses pkg/therm_seaice and pkg/bulk_forcing
1212    
1213    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1214    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1215      when using P-coordinate; only implemented for atmospheric config.
1216    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1217      NOTES: requires option NONLIN_FRSURF to be "#define".
1218    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1219    
1220    checkpoint47b_post
1221    Merging from release1_p9:
1222    o pkg/seaice
1223      - removed GOTO's and added taf directives
1224      - double precision constants to reduce the g77 (Linux)
1225        to F77 (SGI) differences reported in release1_p8
1226    o tools/genmake
1227      - added SGI options
1228    o verification/testscript
1229      - updated to that of checkpoint47a_post
1230    o verification/global_ocean.90x40x15/input/eedata
1231      - modified for SGI f77 compatibility
1232    o verification/lab_sea
1233      - added description of sea-ice model
1234      - added missing matlab routines
1235      - added test of thermodynamics parallelization
1236    
1237    checkpoint47a_post
1238    o new pkg: aim_v23
1239     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1240       for now, keep the same surface forcing as before.
1241     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1242     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1243     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1244    o add diagnostic of surface correction term in monitor output
1245    
1246    o bulk_force and therm_seaice
1247    - Two packages:  bulk_force (Bulk forcing)
1248      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1249    - Earlier integration from Stephaine Dutkiewicz
1250      and Patrick Heimbach.
1251    - Two ifdef statements for compile time,
1252       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1253    
1254    checkpoint47
1255    differentiable version of checkpoint46n_post
1256    o bug fix in quasihydrostaticterms
1257    o * "clean" adjoint code (in terms of extensive recomputations)
1258        can now be obtained for all GMREDI options (i.e. for
1259        - GM_VISBECK_VARIABLE_K
1260        - GM_NON_UNITY_DIAGONAL
1261        - GM_EXTRA_DIAGONAL
1262        - GM_BOLUS_ADVEC )
1263      * However, wrong gradient check problem remains unsolved.
1264      * New CPP options have been introduced for different
1265        tapering schemes
1266    o external_fields_load now part of differentiation list
1267    o pressure needs multiple storing;
1268      would be nice to have store_pressure at beginning or
1269      end of forward_step, e.g. by having phiHyd global (5-dim.)
1270      (NB: pressure is needed for certain cases in find_rho,
1271      which is also invoked through convective_adjustment).
1272    o recomputations in find_rho for cases
1273     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1274    o #define ATMOSPHERIC_LOADING should be differentiable
1275    o ini_forcing shifted to begining of initialise_varia
1276    o Incorporating QNVS line search routines into MITgcm
1277      (this is separate code, and therefore not under pkg)
1278      lsopt/, optim/
1279    o Updated verification/carbon/
1280      - #define GM_VISBECK_VARIABLE_K
1281      - GM_taper_scheme    = 'ldd97'    
1282    
1283    checkpoint46n_post
1284    Merging from release1_p8:
1285    o verification/natl_box:
1286      updating new external_fields_load routine
1287    o New package: pkg/seaice
1288      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1289      The sea-ice code is based on Hibler (1979-1980).
1290      Two sea-ice dynamic solvers, ADI and LSR, are included.
1291      In addition to computing prognostic sea-ice variables and diagnosing
1292      the forcing/external data fields that drive the ocean model,
1293      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1294      The implied surface heat flux is then stored in variable
1295      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1296      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1297      non-local transport term.  Because this call precedes model
1298      thermodynamics, temperature under sea-ice may not be "exactly" at
1299      the freezing point by the time theta is dumped or time-averaged.
1300      N.B.: fairly large differences in accuracy occur across
1301            different platforms/compilers; comparison between
1302            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1303            generated output gives:
1304       T           S           U           V
1305      C D M    c        m  s        m  s        m  s        m  s
1306      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1307      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1308      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1309    
1310      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1311    o GAD:
1312      - generated new common blocks to account for call of
1313        same gad routines with differing traceridentities
1314        (needed to modify tracerIdentity indices in GAD.h)
1315      - generated separate common blocks for case useCubedSphereExchange
1316        (Department of Futurology)
1317      - parameter lists to gmredi_?transport: added tracerIdentity
1318      - added new key indices to tamc.h
1319    o external_fields_load:
1320      - added this routine to TAF list
1321      - needed to make some common blocks global and additional storing
1322        along the same lines as exf package (checkpoint_lev?_directives.h)
1323    o exf:
1324      updated external forcing package
1325      - bug fixes carried over from ecco-branch
1326        (missing OBCS_OPTIONS.h in two routines)
1327      - enable easy to use "no forcing".
1328      - added exf I/O for atmospheric loading
1329      - added exf I/O for runoff data
1330      - transfered scaling between exf <-> MITgcm to exf namelist
1331    o Adding new verification experiment global_with_exf.
1332      This verification experiment is almost identical to the
1333      global_ocean.90x40x15 experiment, except that it uses
1334      the exf (and cal) package instead of the
1335      external_fields_load routine (cf README file).
1336    
1337    checkpoint46m_post
1338    o modified testscript to return -- when there are no lines of "%MON" output
1339    o added new flag "quasiHydrostatic" for QH mode
1340      and new routine quasihydrostaticterms()
1341    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1342      New routine: mom_u_coriolis_nh()
1343    o fixed sign of non-hydrostatic metric terms in u and v equations.
1344      Depend on correct sign of gravitySign.
1345    o added work.pc* to .cvsignore in aim directories using ifc
1346    o introduced flag for controllin non-hydrostatic metric terms
1347    o removed gravitySign from PARM04
1348    o switched to g77/ifc from pgf77 in aim experiments
1349    
1350    checkpoint46l_post
1351    o made convective adjustment work with pressure coordinates:
1352     - changed the direction of k-loop in convective_adjustment.F for the
1353       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1354     - adjusted the reference pressure k-index in convective_adjustment.F
1355     - adjusted the convection condition in convect.F (in analogy to
1356       calc_ivdc.F)
1357     - convective_adjustment no longer computes anything on the halos
1358     - removed the warnings about negative salinity from find_rho.F and
1359       find_alpha.F; instead the new routine look_for_neg_salinity, called
1360       at the beginning of find_rho, find_alpha, and find_beta, does a
1361       check of the entire slice, if CPP-option
1362       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1363    checkpoint46l_pre
1364    
1365    checkpoint46k_post
1366    o fixed the verification/global_ocean.90x40x15 experiment:
1367     - new bathymetry (the world according to A., JMC, and M.)
1368     - new initial fields and forcing fields (*.bin files)
1369     - new POLY3.COEFFS (for the next release one should switch to a full
1370       equation of state: JMD95P or MDJWF)
1371     - fixed several errors and redundancies in the data file
1372     - experiment uses looped cells
1373     - added matlab directory with diagnostic scripts for plotting of output
1374    
1375    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1376     - read AIM physics parameters from a file (data.aimphys)
1377     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1378    
1379    checkpoint46j_post
1380    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1381    o move wVel computation at the end of the time step, in S/R integr_continuity
1382    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1383    o update timeave pkg for wVel diagnostic.
1384    checkpoint46j_pre
1385    
1386    checkpoint46i_post
1387    o Clean up AIM package (and keep the results unchanged):
1388      include CPP_OPTION and use IMPLICT NONE in all routines ;
1389      declare all the variables _RL ; use _d 0 for all numerical constants.
1390      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1391    
1392    checkpoint46h_post
1393    o cleaned up the use of rhoNil and rhoConst.
1394      - rhoNil should only appear in the LINEAR equation of state, everywhere
1395        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1396        and the dynamical equations are all divided by rhoConst
1397    o introduced new parameter rhoConstFresh, a reference density of fresh
1398      water, to remove the fresh water flux's dependence on rhoNil. The default
1399      value is 999.8 kg/m^3
1400    o cleanup up external_forcing.F and external_forcing_surf.F
1401      - can now be used by both OCEANIC and OCEANICP
1402    checkpoint46h_pre
1403    
1404     Added code to convert surface volume flux (fresh water) into
1405     a mass flux when using P coordinates in the ocean (OCEANICP).
1406     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1407    
1408    checkpoint46g_post
1409    o Include a new diagnostic variable phiHydLow for the ocean model
1410      - in z-coordinates, it is the bottom pressure anomaly
1411      - in p-coordinates, it is the sea surface elevation
1412      - in both cases, these variable have global drift, reflecting the mass
1413        drift in z-coordinates and the volume drift in p-coordinates
1414      - included time averaging for phiHydLow, be aware of the drift!
1415    o depth-dependent computation of Bo_surf for pressure coordinates
1416      in the ocean (buoyancyRelation='OCEANICP')
1417      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1418        Theta, Salinity, and Pressure in the parameter list. This routine is
1419        presently contained in find_rho.F. This routine does not give the
1420        correct density for 'POLY3', which would be a z-dependent reference
1421        density.
1422    o cleaned up find_rho
1423      - removed obsolete 'eqn' from the parameter list.
1424    o added two new verification experiments: gop and goz
1425      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1426    checkpoint46g_pre
1427    
1428    checkpoint46f_post
1429    o Enable tangent linear (forward mode) gradient checks:
1430      - extended active file handling to g_... files
1431      - added TANGENT_SIMULATION to theSimulationMode
1432      - extended grdchk package accordingly
1433    o added tangent linear setup in verification/carbon/code_ftl
1434    o added adjoint setup in verification/front_relax/code_ad
1435    
1436    checkpoint46e_post
1437    o Added new equation of state -> MDJWF
1438      - EOS of McDougall et al., 2002, JAOT, submitted
1439      - caveat: the equation of state is only valid for a smaller (more
1440        realistic?) range of values than JMD95P/Z and UNESCO
1441      - added masks to the calculation of pressure in store_pressure
1442      - added more check values for density in check_eos (ini_eos.F), some of
1443        the old check values are out of the range of the MDJWF-eos, so don't
1444        expect perfect matches for those
1445    checkpoint46e_pre
1446    
1447    checkpoint46d_post
1448    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1449      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1450      case of pressure coordinates. eosType='JMD95Z' in
1451      combination with buoyancyRelation='OCEANICP' now causes an error.
1452    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1453      in find_alpha/beta.
1454    checkpoint46d_pre
1455    
1456    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1457      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1458    
1459    checkpoint46c_post
1460    o Changes necessary for ocean in p-coordinates
1461     -  Added new buoyancy relation = 'OCEANICP'
1462     -  Added new parameters = gravitySign (this used to be contained inside
1463        the factor dRdZ which I added when we first switched to R coordinates).
1464     X GM/Redi is not compatible (yet)
1465     X bottom drag and no-slip need to be debugged.
1466    checkpoint46c_pre
1467    
1468    checkpoint46b_post
1469    o Added new equation of state -> JMD95Z and JMD95P
1470      - EOS of Jackett and McDougall, 1995, JAOT
1471      - moved all EOS parameters into EOS.h
1472      - new routines ini_eos.F, store_pressure.F
1473    o Added UNESCO EOS, but not recommended because it requires
1474      in-situ temperature (see JMD95)
1475    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1476      unesco.f to be used with POLY3
1477    checkpoint46b_pre
1478    
1479    checkpoint46a_post
1480    o Added (atmospheric) pressure loading
1481      - new field in FFIELDS.h, etc...
1482      - new cpp flag ATMOSPHERIC_LOADING
1483    o Changed hFacC to _hFacC in calc_phi_hyd.F
1484    o Added SHORTWAVE_HEATING to some files for consistency
1485    checkpoint46a_pre
1486    
1487    checkpoint46
1488    further merges from release1_p5
1489    o new ctrl package
1490      - adopted from ECCO environment to enable optimization
1491      - added Eliassen Palm fluxes to controls
1492    o added Eliassen Palm flux controls to gradient check package
1493    o cost package
1494      - Compatible with new ctrl package
1495      - added Eliassen Palm cost hooks
1496      - modif's of existing cost functions
1497    o Adjoint-related bug fixes in kpp:
1498      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1499      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1500    o autodiff package
1501      - flow directives:
1502        + new for S/R do_the_model_io
1503        + enhanced for S/R checkpoint
1504        + new gmredi.flow
1505      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1506        disable adcommon.h/g_common.h by default.
1507      - fixed problem for adjoint of global_max
1508    o modified verification/carbon/
1509    o New setup for adjoint of global_ocean
1510    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1511    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1512    o incorporated hooks for sponge layer code (external_forcing.F)
1513    
1514    checkpoint45d_post
1515    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1516    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1517      (affects plume_on_slope "cg2d" output)
1518    o add new parameter deltaTfreesurf for free-surface time stepping
1519    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1520    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1521    o change phiMin in exp1 (to agree with documentation)
1522    o add new flags:
1523     - T,S forcing inside/outside Adams-Bashforth
1524     - turn off temp,salt advection and/or forcing
1525     - for each tracer, define internal flag for multiDimAdvection & A-B
1526    o monitor: change definition of KE to check conservation of Energy
1527    
1528    checkpoint45c_post
1529    o Removed f90 comments ("!")
1530    o Modified initialisations to enable exf package for MITgcm
1531      (without invoking ECCO_PACKAGE).
1532    o modifications to gradient check package (Martin Losch)
1533      - enable centered differences
1534      - modified format of standard output
1535    
1536    checkpoint45b_post
1537    o cleaned exchange calls in cg2d
1538    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1539    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1540      to configure barotropic setup (Martin Losch)
1541    o moved some initialisations within bi,bj loop in dynamics
1542      (TAF flow dependency)
1543    o in initialise_varia, moved call packages_init_variables
1544      before convective_adjustment_init
1545      (corresponding adjustment of TAF tape initialisation).
1546    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1547    
1548    checkpoint45a_post
1549    o compute Rho over the whole domain (extend iMin,jMin indices)
1550    o specific exchange for X-slice domain (case Ny=1)
1551    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1552    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1553    
1554    checkpoint44h_post = checkpoint45
1555    o Fix to restore differentiability:
1556      place at which packages_init_variables is called in
1557      initialise_varia is crucial for reverse control flow.
1558    o modifications in GMRedi to enable stable adjoint
1559      (corresponding modif's in thermodynamics, dynamics)
1560    o added missing hook for sponge layer code in external_forcing
1561    o modified test cost functions
1562    o storing in gad_advection (plus removal of write(0,*)!
1563    o missing headers TR1.h added in convective_adjustment routines
1564    o errorMessageUnit set non-equal zero in eeboot
1565      (conflict on some platforms, e.g. IBM SP3)
1566    o modified carbon verif.
1567    
1568    checkpoint44h_pre
1569    o vertical grid option: allow to put the Interface at the middle between
1570      2 cell-centers ; replace delZ in pkg/kpp by drF.
1571    o GM Advective form: Tracers are advected using the residual transport (=
1572      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1573    
1574    checkpoint44g_post
1575    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1576      results) ; ifdef missing in thermodynamics.F
1577    
1578    checkpoint44f_pre,checkpoint44f_post
1579    o added PTRACERS package
1580      This allows an arbitrary number of passive tracers to be integrated
1581      forward simultaneously with the dynamicaly model.
1582      + Implemented so far:
1583        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1584        - I/O and checkpointing
1585        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1586      + Not implemented so far:
1587        - KPP
1588        - OBCS
1589      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1590        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1591        line in data.pkg.
1592      + This package is disabled by default since it increases storage.
1593    
1594    
1595    o testscript: added -cleanup option
1596    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1597                 b) enable to filter 2D fields.
1598    
1599    checkpoint44e_pre,post
1600    o re-wrote convective adjustment to use pre-calculated weights
1601      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1602      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1603      Original calls to convect() still in place.
1604    
1605    chkpt44d_pre,post
1606    o added missing EXCLUDE_MONITOR flags
1607    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1608      (incompatible typ in MIN/MAX expressions caused problems
1609      on IBM SP3)
1610    o in genmake added variable MAKEDEPEND
1611      plus resetting for case SunOS
1612    o added timer_stats.c routine for IBM SP3
1613    o removed variables in dynamics
1614    !!! I forgot to create tag chkpt44d_pre !!!
1615    !!! But chkpt44d_pre = chkpt44c_post    !!!
1616    
1617    o real fresh water flux implemented with non-linear free-surface.
1618    
1619    chkpt44c_pre,post
1620    o few fix (mask in shap_s2, EmPmR in external_field_load,
1621      USE_NATURAL_BCS in solve_for_P);
1622    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1623    
1624    checkpoint44b_pre/_post
1625    o merge of relevant stuff from the ecco-branch:
1626      - genmake: removed $S64 overwrite for case SunOS
1627      - pkg/exf: update and corrections for field swapping and obcs
1628      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1629                  harmonized between ECCO and MITgcm
1630      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1631                      updated checkpointing_lev... lists for obcs
1632      - model/src: minor changes in forward_step, plot_field
1633                   added directive for divided adjoint in the_main_loop
1634      - pkg/mdsio: added mdsio_gl_slice
1635    
1636    o check parameters & config (chkpt44a_pre,post)
1637    o OBC and NonLin_FrSurf.
1638    
1639    checkpoint44
1640    o fix bug in mom_vi_del2uv
1641    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1642    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1643    o update AIM experiments (NCEP input files)
1644    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1645    o added some stuff for AD
1646    
1647    checkpoint43
1648    o added two new advection tests
1649    o added global 4x4 degree ocean test
1650    o added test of H&S94 with free surface on cube
1651    o some final mods for gradient check, adjoint,...
1652    
1653    checkpoint42
1654      Fixed AD-related problems:
1655    o Store directives up-to-date with re-arranged Adams-Bashforth
1656      (mainly thermodynamics.F)
1657    o New store directives for multi-dim. advection schemes
1658      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1659      * new common block and key passkey
1660      (mainly gad_advection.F)
1661    o Modified store directives for split of dynamics/thermodynamics
1662      for the case ALLOW_KPP
1663    o Cleaned argument list for timestep_tracer.F
1664    
1665    checkpoint41
1666    o re-formatted/added comments in prologues of key subroutines
1667      to work with protex
1668    
1669    checkpoint40
1670    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1671    o added FLT (floats) package from Arne along with demo. experiment
1672    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1673      implementation of forward-in-time forcing terms
1674    o more mods for non-linear free-surface including new variable
1675    o modified multi-dim method to work on cube
1676    o bug fix in KPP (from DM)
1677    
1678    checkpoint40pre9
1679    o added DST advection schemes
1680    o fix MPI bug on SGI's
1681    o modifications for non-linear free-surface
1682    o fixed conditionals for fixed flow/passive tracer only mode
1683    o added tension/strain form of stress tensor
1684    o changes to commenting of arguments for TAF/TAMC
1685    o added/updated many matlab scripts
1686    o added multi-dimensional advection method for tracers
1687      
1688    checkpoint40pre8
1689    o new package rw/
1690      Added method for dumping intermediate local arrays:
1691      mdsio_writetile - same as mdsio_writefield except works from inside
1692                        bi,bj loop
1693      mdsio_writelocal - same as mdsio_writetile except works for local
1694                         arrays
1695      write_local_r? - higher-level wrapper for mdsio_writelocal
1696      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1697      Example given at end of mom_vecinv.F that dumps some local arrays.
1698    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1699      control flux-form versus vector invariant code.
1700      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1701      or genmake -DISABLE ...
1702    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1703      (additional storing is now needed for case vecinv;
1704      currently nothing implemented to switch this storing off
1705      in case fluxform is used since no CPP flag available).
1706    
1707    checkpoint40pre7
1708    o bug fix in dynamics.F
1709      calc_viscosity called before k=1,Nr loop.
1710    o added some #ifdef's ALLOW_PASSIVE_TRACER
1711    o cleaned initialisations in ctrl_map_ini
1712      related to TAF
1713    
1714    checkpoint40pre6
1715    o split dynamics into thermodynamics & dynamics
1716    o corresponding split of calc_diffusivity into
1717      calc_diffusivity, calc_viscosity
1718      (kpp_calc_diff, kpp_calc_visc).
1719    o Added diffkr, kapgm to control variables
1720    o bug fix in gmredi_slope_limit for ldd97
1721    
1722    checkpoint40pre5
1723    o proper initialization of Adams-Bashforth time stepping
1724      + uses forward step for very first step of model (iter=0)
1725    o re-generated *all* output since almost all output is modified by this
1726      change (sorry but we've been putting this one off for about 2 years)
1727      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1728        *not* regenerated since they are already out of date and I don't
1729        want to create the impression that they are suddenly working.
1730    o removed KAP stuff for DEC's
1731    o modified/added many .cvsignore files in */code and */input
1732    o added new expt "solid-body.cs-32x32x1"
1733      + this uses an alternative form of ini_curvilinear_grid.F which
1734        is not necessarily any better than the current one...
1735    
1736    checkpoint40pre4
1737    o added re-initialisations of utrans,vtrans,rtrans in
1738      calc_common_factors which are crucial for TAF.
1739    o extended iMin,jMin range for calc_common_factors,
1740      calc_diffusivity
1741    o added option ALLOW_PASSIVE_TRACER
1742    o a few minor updates and fixes
1743    
1744    checkpoint40pre3
1745    o created calc_gtr1.F for gad package
1746    o split the_main_loop and re-introduced forward_step
1747    o some recomputations of nIter0 for TAMC
1748    
1749    checkpoint40pre2
1750    o Updated to latest branch of AJA, JMC
1751    o Added gradient check package
1752    o Added routines for passive tracer handling
1753    o Added carbon sequestration sensitivity experiment
1754    
1755    checkpoint39
1756     o Modifications and fixes to support TAMC
1757       (mainly missing or wrong directives)
1758     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1759       in addummy_in_stepping
1760     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1761     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1762     o Included following packages:
1763       cal: calendar
1764       exf: external forcing
1765       ecco: essential routines to control use of cal, exf
1766             (NB: this is not the full ECCO environment)
1767     o disabled some packages by default in genmake
1768    
1769    checkpoint38
1770     o see notes_c37_adj.txt
1771     o corrected wrong layer index in external_forcing_t
1772     o replaced the_main_loop/forward_step by the_main_loop
1773     o removed forceoutput from write_state
1774       (replaced criteria for initial/final state)
1775     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1776    
1777    checkpoint37
1778     o mdsio.F routine split and packaged in pkg/mdsio
1779       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1780        used unless genmake -disable=mdsio)
1781     o allow a more precise surface-geopotential gradient for the atmosphere
1782       taking into account the change in space of Alpha (=1/rho) at the surface.
1783     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1784       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1785     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1786       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1787       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1788     o Time-Average diagnostics defined as a pseudo package "timeave".
1789     o pickup files : old pickup (before c35) did not work with new code (c35
1790       and after) unless activating 2 commented lines in initialise-varia.
1791     o Non-Hydrostatic pickup file Pb fixed.
1792     o bug with Rigid-lid version (since c35) fixed.  
1793    
1794    checkpoint36
1795     o implement Crank-Nickelson barotropic time-stepping
1796     o recover Time-Average diagnostics
1797     o fix Pb in checkpoint (PR#19)
1798     o AIM become a standard package ; clean unused CPP_kees
1799    
1800    checkpoint35
1801     o subtantial rewrite of dynamics.f
1802     o allows staggered time-stepping
1803     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1804     o added bottom drag (linear + quadratic)
1805    
1806    checkpoint34
1807     o Modified exchange routines for correct reverse simulation.
1808     o Added verification output to comply with bug fix in impldiff.F
1809       as of c33 (exp2, natl_box).
1810     o Corrected store directives in dynamics.F
1811     o Corrected array boundaries in impldiff.F
1812     o Corrected array dimensions in gmredi.
1813       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1814     o Added routine GLOBAL_SUM_INT to global_sum.F
1815     o Added mdsio_gl.F for ECCO purposes.
1816    
1817    checkpoint33
1818     o Fixed bug in lower BC in impldiff.F
1819     o Fixed confusion about units of forcing arrays in FFIELDS.h
1820       namely Fu,Fv,Qnet,Qsw,EmPmR:
1821       - Removed verification/natl_box/code/external_fields_scale.F
1822         (did not differ from that in model/src)
1823       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1824         (see FFIELDS.h for description)
1825       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1826         kpp_calc.F and kpp_transport_t.F
1827       - Removed model/src/external_fields_scale.F and calls to it
1828       - verification/natl_box uses flux data with "atmospheric" sign so
1829         a special version of external_fields_load.F is used to
1830         change the data as it's read in. This way, the arrays
1831         have the right units and signs at all times tha a user could
1832         possibly use them.
1833     o Corrected genmake to delete a temporary file during configuration
1834    
1835    checkpoint32
1836     o Scaling of forcing fields moved from external_forcing.F to
1837       external_fields_scale.F, called directly after loading fields.
1838     o Surface relaxation terms added to surface tendency fields in
1839       extra subroutine.
1840     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1841       fields.
1842     o Changes in GMRedi to comply with packaging structure.
1843     o Modifications and bug fixes in KPP package.
1844     o Verification experiment for KPP added (verification/nat_box/)
1845    
1846    checkpoint31
1847     o Packages interface brought in line with defined standard
1848       -> new routines packages_...F
1849       -> changes in initialise_fixed.F, initialise_varia.F
1850       -> enables initialisation interface for ECCO package
1851     o Rescaling of external forcing fields immediately after read
1852       (removed from external_forcing.F)
1853       -> new: surface_fields_scale.F
1854       -> affects ini_foorcing.F, external_fields_load.F
1855     o Computation of surface tendencies before tendency updates.
1856       -> new: external_forcing_surf.F
1857     o Change of variable names useGMRedi, useKPP, useECCO
1858     o Further changes in dynamics.F, impldiff.F for TAMC
1859     o Tested for experiments 0, 2, 4.
1860       - not yet tested for GMRedi.
1861       - not yet tested for KPP.
1862    
1863    checkpoint30
1864     o Updates for OBCs
1865     o New experiment for test OBCs (internal_wave)
1866     o New output.txt in verification/exp4/results/
1867     o Updates for KPP: calculation of viscosity corrected, new variables
1868       kpp_dumpFreq and kpp_taveFreq
1869     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1870       and entry for T90 in genmake
1871    
1872    checkpoint29
1873     o packaged KPP and GM/Redi
1874    
1875    checkpoint28
1876     o Corrected initialization of hFacMin for difference vertical coordinates
1877     o Modified calculation of partial cell thickness to more robust algorithm
1878     o config_summary.F: replaced write_1D_... by write_0D_...
1879       read_write.F: added subroutines write_0D_...
1880     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1881       included some initialisations required for TAMC.
1882     o routine calc_isoslopes: modified sqrt computation to make it
1883       differentiable for zero argument.
1884     o routines dynamics, impldiff:
1885       included store directives and tape key computations required for TAMC.
1886     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1887    
1888    checkpoint27
1889     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1890       formulation works properly with variable resolution.
1891     o restructured the calling tree between the_model_main() and dynamics()
1892     o split initialise() into initialise_fixed() and initialise_varia()
1893     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1894       in new routine ini_psurf()
1895    
1896    checkpoint26
1897     o moved some #ifdef in optional routines to encompass everything
1898       except the argument declarations. This was using up some memory.
1899     o fixed macros like _ADT to work with both versions of Linux cpp
1900     o cleaned up some unused and uninitialized variables
1901       (helps when debugging with strict compile options)
1902     o split up CPP_EEOPTIONS.h into options and macros
1903       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1904     o patch for 2 processor JAM mode
1905    
1906    checkpoint25
1907     o updates for OBCs and NH
1908     o dramatically reduced memory usage
1909     o added "JAM" routines for use on Artic network
1910     o parameterization of convection by implicit vertical diffusion
1911     o added a diagnostic of convective index
1912     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1913       (this is was partly for OBCs and NH but also in anticipation of
1914        an explicit free-surface option)
1915     o initial state input files for U and V
1916    
1917    checkpoint24
1918     o Removed some spurious "REAL"s
1919     o Updated KPP to latest version from JPL
1920     o Added a COS(latitude) in horizontal viscosity
1921    
1922    checkpoint23
1923     o Added del^4 diffusion for salt and temperature
1924     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1925    
1926    checkpoint22
1927     o Made many small changes: implicit none, format(i5), etc...
1928     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1929    
1930    checkpoint21
1931     o Introduced new I/O package that supports direct-access records (mdsio.F)
1932     o Split-up mid-level I/O routines
1933     o Updated input data for experiments 0,1,2,4 and 5
1934     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1935    
1936    checkpoint20
1937     o Tidied up open-boundaries some more
1938     o Added non-hydrostatic code
1939     o Fixed some input data
1940     o Modified MPI start-up to work in "coupled" context.
1941    
1942    checkpoint19
1943     o Tidied up directory structure for verification experiments.
1944     o Added new code for open boundaries.
1945     o Corrected advective terms near boundaries.
1946     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1947     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1948     o Split default parameters out of ini_parms.F into set_defaults.F.
1949    
1950    checkpoint18
1951     o Further changes for optional code generation with
1952       CPP - ugh!
1953    
1954    checkpoint17
1955     o Beginning to incorporating modularity
1956       for supporting atmos. and ocean configs.
1957     o Small changes for TAMC complinace
1958     o New ultra simple test case. Barotropic box
1959       configuration "exp0".
1960    
1961    checkpoint16
1962     o Minor changes to exchange routines to support
1963       accumulation in reverse mode. Adjoint of an
1964       assignment is an addition.
1965     o Changes to support compilation by TAMC (LR(1)
1966       syntax) and by g77 under Linux ( 72 character
1967       limit ).
1968    
1969    checkpoint15
1970     Rewrote exchange routines to allow
1971     o General tile <-> tile connectivity.
1972     o TAMC reverse mode flag ( is this really needed? )
1973     o Variable width overlap and exchange region widths.
1974     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1975       shmput/shmget, VIA, SYSV shmem and every other cool
1976       communication method.
1977    
1978    checkpoint14
1979     Consistent isomorphism chages made. These allow dynamical core
1980     to support both pressure and meters as a vertical coordinate.
1981    
1982    checkpoint13
1983     Release which corrects global_max problem and a couple
1984     of KGM time-averaging diagnostic errors. Also contains
1985     a double-gyre experiment setup as well as the baseline
1986     4 degree global template. The double gyre template is
1987     organised to allow it to be applied automatically to
1988     the baseline configuration.
1989    
1990    branch-point-rdot
1991     A few tidy-ups have been made bt the real point of this
1992     check-point (excuse the pun) is to allow a branch to be
1993     made for the purposes of adding the rDot alterations.
1994     I don't want to commit the rDot to the main-trunk until
1995     we've actually tested it...
1996    
1997    checkpoint12
1998     Tidy up and added generic genmake script (formerly
1999     configure script).
2000     Released to testers.
2001    
2002    checkpoint11
2003     Re-arranged initialise() and introduced ini_vertical_grid()
2004     and ini_masks_etc().
2005    
2006    checkpoint10
2007     Introduced the configure script.
2008     Separated out the diags package.
2009     Added template for writing time-averages of tile/intermediate quantities.
2010     Updated SIZE.h in exp2 and made the data big-endian.
2011    
2012  checkpoint9  checkpoint9
2013   MPI fix. Filename changes (meta/data). salbin*y stuff.   MPI fix. Filename changes (meta/data). salbin*y stuff.
2014   General tidy-up.   General tidy-up.

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