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revision 1.5 by cnh, Mon Jun 15 05:13:55 1998 UTC revision 1.387 by mlosch, Thu Nov 18 23:30:46 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 GCHEM: move call to GCHEM_FORCING_SEP, so that it is now called before
7      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
8    
9    checkpoint56
10    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
11    o mnc: cleanup "full" files--fixes out-of-memory problem
12    o ECCO-GODAE
13      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
14      * fully merged and updated from SIO code
15        windstress sign change affects
16        - exf_inscal_[u/v]stress
17        - sign of xx_tau[u/v] adjustments
18        - signs in cost_scat
19      * ctrl_get_gen: avoid update of tau[u/v] for first few days
20      * natl_box_adjoint updated and compressed
21      * 2-level checkpoint switch added
22        (tested in EXP. 1 of natl_box_adjoint)
23      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
24    o SVD
25      * first complete, non-hacked version for SVD calculations
26      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
27        performed via direct access files admtlm_vector.it????
28        (via ctrl_[un]pack)
29      * optimcycle is used for ARPACK iteration counter
30        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
31      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
32        and add linear transforms where necessary
33      * controls are initial/final SST, SSS (can be extended; need to check
34        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
35    o mdsio: filename info to both stderr, stdout
36    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
37      from sign change
38    
39    checkpoint55j_post
40    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
41      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
42    o add consistent build directories and .cvsignore files to verification
43    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
44    o make all subroutines 30 or less characters in length for certain older
45      compilers to work (a thorough search only turns up two routines in
46      pkg/ptracers)
47    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
48      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
49    
50    checkpoint55i_post
51    o change arrays for total vertical diffusivity (2.D if explicit,
52      3.D if implicit) ; each ptracer uses its own background value.
53    o added mnc/NetCDF output capability to ocn_compon_interf
54      - added bits to verification/cpl_aim+ocn so that it can run on
55        ITRDA and other clusters without the mpirun "-wd" option
56    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
57      configuration
58    o give MNC the ability to create additional files rather than
59      exceeding a specified file size limit "MNC_MAX_FILESIZE"
60      - the default is just less than 2GB which is a practical limit
61        on many systems
62    o Compute the non-local term using either KPP vertical diffusivity (=default)
63       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
64    
65    checkpoint55h_post
66    o add verification test "vermix"
67    o remove all the *_ioinc flags and replace with the single global
68      outputTypesInclusive flag
69    o allow to set a vertical profile of vertical diffusivity for T & S
70    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
71    o useMNC moved from data.mnc to data.pkg
72    
73    checkpoint55g_post
74    o Renaming carbon AD experiments to comply with testreport conventions
75    o Updating adjoint of Held-Suarez hs94.1x64x5
76    o Fixing directives for non-ECCO forward_step, after ECCO directives
77      have been fixed to avoid recomp. of do_oceanic_phys
78      Works well for global_ocean.90x40x15,
79      but recomp. issue remains for carbon
80    o Updating adjoint output for natl_box_adjoint after
81      pkg/ecco has been modified (see taga c55d_post)
82    
83    checkpoint55f_post
84    o rename to timeave_init_fixed
85    
86    checkpoint55e_post
87    o some delicate re-shuffle of store directives to avoid one
88      extra call of do_oceanic_physics
89      affects ecco_the_main_loop.F, do_oceanic_physics.F
90      checkpoint_lev1_directives.h
91    o NB: this may break global_ocean adjoint temporarily,
92      but it is clear how to fix it. Will do later, need this now.
93    
94    checkpoint55d_post
95    o ECCO specific cost function terms (up-to-date with 1x1 runs)
96    o ecco_cost_weights is modified to 1x1 runs
97    o modifs to allow observations to be read in as
98      single file or yearly files
99    o enable to read exf forcing fields as either
100      single file or yearly files (flag useExfYearlyFields)
101    checkpoint55d_pre
102    
103    o switch between 2-level and 3-level checkpointing
104    o add ability of MNC to write local and "partial" (eg. 2D slices where
105      the full 3D field is never actually stored) arrays to NetCDF files
106      with the correct (that is, the complete multi-dimensional) set of
107      array indicies
108      - used in mom_vecinv() to write the diagFreq output
109      - tested (demonstrated) in verification/aim.5l_cs
110    o further mnc-ification
111      - add verification/lab_sea to the list with mnc setups
112      - fix undefined mnc v-names in cd_code
113      - add kpp to mnc output (both snapshot and timeave)
114    o non-hydrostatic code
115      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
116        in calc_gw.F
117      - defaults to viscAh
118      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
119        friction or Leith) in non-hydrostatic mode, as long as there is
120        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
121    o pkg/cost
122      extend simple cost functions to treat time mean quantities
123      (T,U,V) via cost_accumulate_state from cost_tile
124    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
125        be 2 times larger than the minimum size the advection scheme requires.
126        now get a perfect conservation of salt in advect_cs test-exp (updated)
127    o GGL90 (Gaspar's TKE mixed layer)
128      - add horizontal diffusion of TKE, requires exchanges in
129        do_fields_blocking_exchanges, horizontal diffusivity is zero by
130        default. In OPA there is no horizontal diffusion of TKE but the
131        mixing coefficients are computed from a horizontal average of TKE of
132        6 points or so. I think that diffusion has a little more physical
133        justification.
134      - clean up ggl90_calc in the hope of reducing memory usage (this hope
135        was in vain)
136      - mask tke-variable in ggl90_init
137    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
138    o fix biharmonic diffusion on CS-grid.
139    o more obcs stuff
140      - added obcs_external_fields_load as an alternative to the EXF-pkg option
141        for reading boundary values. This routine is called from
142        obcs_prescribe_read
143      - updated obcs_check
144      - changed sponge layer relaxation parameter units for days to seconds
145      - turned off sponge layer by default
146      - changed argument list of OBCS_CALC to myTime+deltaTclock
147      - fixed about 35 bugs in obcs_external_fields_load
148    
149    checkpoint55c_post
150    o obcs stuff
151      - new runtime flags useOBCSprescribe, useOBCSbalance
152      - re-arranged obcs_calc
153      - moved exf_getobcs to obcs_prescibe_read
154        obcs_prescibe_read is called after ORLANSKI stuff
155        and independent of it (executable can contain all).
156      - updated obcs_check
157      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
158        These may be necessary only if tangential velocities are
159        prescribed at OB, not sure, needs testing.
160    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
161      which simplifies the calls and passes the ifc check-bounds test
162    
163    checkpoint55b_post
164    o add a 2D scalar, Z location, exchange_2 routine.
165    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
166      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
167      affects advect_cs results (for the wrong reason): update output.txt
168    o use a more standard discretization for biharmonic viscosity ;
169     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
170      affects results of dome set-up: update output.txt
171    o fix gad_advection.F (CubedSphere part), back to version 1.23
172    o fix bug in mom_vi_del2uv.F (CubedSphere part).
173    
174    checkpoint55a_post
175    o merged code to
176      * prescribe/read time-dependent open boundaries
177        (works in conjunction with exf, cal)
178      * sponge layer code for open boundaries
179      * each boundary N/S/E/W now has its own CPP option
180        (healthy for the adjoint)
181    
182    checkpoint55
183    o up-to-date adjoint of previous breaks
184      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
185      - global_ocean_ebm: adjoint still needs fix (TLM ok)
186      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
187      - carbon: * remove tr1-related adjoint verification
188                * add ptracer as control variable
189    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
190      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
191    
192    checkpoint54f_post
193    o in verification/carbin/ remove experiment related to
194      ALLOW_PASSIVE_TRACER (array tr1 etc)
195      code_ad/ input_ad/ results_ad
196    
197    o add two new packages
198      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
199        + subject to optimization (memory)
200      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
201        + subject to reordering (many GOTOs in the original code)
202        + so far opps is called for every (i,j) point, and then operates in
203          the vertical; one may want to reorder the scheme in order operate in
204          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
205          fields)
206    o overhaul of IO so that we now have flags for MDSIO and/or MNC
207      - all verification tests compile and run with linux_ia32_g77
208      - defaults are compatible with current input files--nothing
209        should change if you were not previously using MNC
210      - MNC output has been added in numerous places (eg. timeave)
211        but there are still a few writes not yet do-able with MNC
212        (this is in progress)
213      - flags now allow for either/or/both use of MDSIO and MNC and
214        documentation will soon follow
215      - numerous small formatting cleanups for ProTeX
216    o add version info (via BUILD_INFO.h) to MNC and stdout
217    
218    checkpoint54e_post
219    o add two new packages
220      - pp81 (Packanowski and Philander, 1981), Richardson number and
221        stratification dependent mixing
222      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
223      - these scheme operate in a similar manner as KPP (without ghat, of
224        course), however there is only one diffusivity that is used for both
225        temperature and salinity (and passive tracers)ç
226    o add offline package
227    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
228      provided by Stephanie Dutkiewicz
229    o genmake2: add ability to search for C compilers and cleanup test output
230      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
231    
232    checkpoint54d_post
233    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
234    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
235      leading to additional shift by 5 days each year of integration
236       (i.e. leading to considerable offset over the years)
237    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
238    o start with no AB and no initial filtering (staggerTimeStep):
239      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
240    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
241      (external loading & cpl import/export stay in forward_step.F)
242    o update coupling interface to work with new staggerTimeStep
243    o change MDSIO ptracers_pickup.
244    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
245    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
246    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
247    
248    checkpoint54c_post
249    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
250      this affects (truncation error) output.txt of test-exp:
251       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
252    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
253    o change Qnet to always be the net heat flux, (+upward).
254      affects (truncation error) output of natl_box exp.: updated
255    o define the max number of passive tracers in PTRACERS_SIZE.h
256    o start to test mnc routinely in exp0
257    o add sea-ice loading (sIceLoad) as a new forcing field.
258    
259    checkpoint54b_post
260    o add testreport "-j JOBS" option for parallel builds (tested and pretty
261       impressive on Altix and Opteron systems)
262    o diagnostics can now write NetCDF files through the mnc package
263    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
264    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
265    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
266      affects (truncation error) output of lab_sea & natl_box exp.: updated
267    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
268    
269    checkpoint54a_post
270    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
271    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
272    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
273    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
274      + internal_wave (shift in writing cg2d_ini_res)
275    checkpoint54a_pre
276    
277    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
278      - modified verification/lab_sea and natl_box_adjoint accordingly
279    
280    checkpoint54
281    checkpoint53g_post
282    o prepare splitting of thermodynamics: store convect.counter in common block
283    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
284      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
285    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
286    o new parameter "nShapS": allow to treat differently S from T (nShapT)
287    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
288    o restore adjointability
289    
290    checkpoint53f_post
291    o modifications that affect AIM experiment results (update output.txt):
292      - no advection of S at top interface Nr (pkg/generic_advdiff)
293      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
294    o AIM pkg:
295      - include stability function into surf.Flux derivative relative to Tsurf
296      - calculate clear-sky radiation & surface temp. change (for diagnostics)
297    
298    checkpoint53e_post
299    o merged cylindrical coord configuration
300    o added rotating_tank experiment
301    checkpoint53e_pre
302    
303    checkpoint53d_post
304    o faulks upgraded: re-generate output.txt that have changed:
305       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
306    o Added Bryan and Lewis, 1979, vertical diffusivity profile
307    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
308    o added Sadourny discretization of Coriolis
309      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
310      - re-enabled use of omega3 (useAbsVorticity)
311    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
312      vector-invariant equations
313      - note: does *NOT* yet use same variable visc. for no-slip BC's.
314    o recoded the lateral boundary conditions for non-hydrostatic w, this time
315      hopefully without new bugs
316      - still to do: biharmonic friction for non-hydrostatic w
317    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
318    o regenerated output for global_ocean_ebm (using -ieee)
319    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
320      of mom_common/
321      - simple re-arrangement of instructions within computing loop
322    checkpoint53d_pre
323    
324    checkpoint53c_post
325    o new version of coupler for AIM+thSIce and Ocean models
326     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
327     - land: change Evaporation of snow
328     - aim with thSIce: fix bug in snow-precip.
329    o changes to calc_gw.F
330     - bug fix for w^2 term near the bottom boundary
331     - (hopefully) improve the lateral slip boundary condtions for use with
332        partial/looped cells
333      - because the bug fix changes two verification experiments anyway (exp5
334        and plume on slope), change the lateral boundary condition from half slip
335        to the value of no_slip_sides
336    o ebm package wasnt quite up to the parallel task. Fixed that.
337    o Adjoint of EBM package + verification
338      * TLM OK
339      * ADM not sufficient accuracy yet (needs further testing)
340    
341    checkpoint53b_post
342    o Commiting new energy balance model to repository
343      * package is pkg/ebm
344      * verif. is verification/global_ocean_ebm
345      * references are in ebm_driver.F
346    C      * X. Wang, P. Stone and J. Marotzke, 1999:
347    C        Global thermohaline circulation. Part I:
348    C        Sensitivity to atmospheric moisture transport.
349    C        J. Climate 12(1), 71-82
350    C      * X. Wang, P. Stone and J. Marotzke, 1999:
351    C        Global thermohaline circulation. Part II:
352    C        Sensitivity with interactive transport.
353    C        J. Climate 12(1), 83-91
354    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
355    C        Destabilization of the thermohaline circulation
356    C        by atmospheric eddy transports.
357    C        J. Climate 7(12), 1870-1882
358    o Will need long integration testing.
359    checkpoint53b_pre
360    
361    o created pkg/mom_common in preparation for variable viscosity code
362    o renamed and split ini_mnc_io
363    o pkg/land: only liquid water can diffuse or run-off
364    o AIM using land: soil wetness availability account for snow
365    o added printMapIncludesZeros to EEPARMS namelist
366    
367    checkpoint53a_post
368    o restore TAMC compatiility for exf_constants.h
369      (no usage of _d in .h)
370    o Additional storing in KPP in an attempt to fix
371      TAMC problem with adjoint of KPP code.
372      (no success...)
373      Identical code works fine with TAF.
374    o Fixed verification/natl_box_adjoint experiments.
375      Initial conditions for Experiments 4 and 5 are now
376      set to "SEAICE_initialHEFF=0", which is more reasonable,
377      and hence gives results closer to that of Experiment 2.
378      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
379    
380    checkpoint53
381    o stable checkpoint with up to date adjoint
382      TLM tests only run for 1st grdchk at the moment. Its unclear if
383      this is a code problem or a problem with resetting code for g_
384      variables that is being autogenerated wrong.
385      Otherwise:
386       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
387       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
388         are both still in chaos following their security messes.
389    
390    checkpoint52n_post
391    o various build (mostly genmake2) changes including:
392      - ability to build/run more easily within Cygwin and MacOS X
393      - more complicated Makefiles with a stronger dependence on Gnu Make
394    o pkg/seaice modifications
395      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
396        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
397        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
398      - changed proxy for geostrophic velocity and updated
399        verification/lab_sea/results/* accordingly
400      - removed ADI dynamic solver from pkg/seaice
401      - replaced all occurrences of 1/CSTICE or 1/CSUICE
402        they caused a segmentation fault under certain circumstances
403      - removed unused field WATR
404    o bug fix in exf-package:
405      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
406         now reflect that.
407    o small fixes in the cal-package:
408      - set reference date to first of January for the 'model'-calendar
409      - failing of cal_CheckDate in cal_FullDate now actually results in a
410        warning
411    o small modifications in exf-package to increase flexibility:
412      - change climtempfreeze from a constant to a runtime parameter that
413        is specified in data.exf_clim (default = -1.9)
414      - introduce runtime parameter windstressmax (default = 2.0) that is
415        specified in data.exf
416    o fix in pkg/thsice:
417      - update Evap (Tsf changes) to be consistent with Latent heat flux
418      - maintain snow precipitation unchanged (even if Tsf >=0).
419     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
420    
421    checkpoint52m_post
422    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
423      this does not change any of the results, because myIter=0 in swfrac always
424      lead to jwtype=2 (the default anyway), but the call makes little sense
425      as a default
426    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
427    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
428      atmospheric model (AIM) to use it ; add a "slab ocean" component.
429    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
430    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
431    o extending useSingleCpuIO option to work with new exch2 I/O format
432      - old-style, missing-tile I/O is still accessible by defining CPP
433        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
434    o monitor package can write to NetCDF files and/or STDOUT
435    o fix re-definition bug in MNC_GRID_INIT_ALL()
436    o doc/api_reference added
437      - a framework for building an API Reference Manual using all
438        the "protex" comments embedded in the code
439      - see pkg/generic_advdiff, pkg/mnc for examples
440    o MNC:
441      - make myThid the last argument for all subroutines
442      - new default for the grid files: NO halos
443      - add useMNC and other run-time flags
444      - separate per-file-group handling of the unlimited dimension
445      - early initialization of MNC w/ flags read at the eeboot stage
446        and lookup tables set in initialize_fixed
447      - write all MNC output to a freshly-created directory
448    o thermodynamics sea-ice (thsice) is now tested with testreport.
449    o test exp. advect_cs: use the standard cs32 grid ; update output.
450    o Added functionality to grdchk:
451      pick global i,j,k position (or nearest wet) where to perform check.
452    
453    checkpoint52l_post
454    o new land formulation:
455      a) use ground enthalpy as prognostic variable to ensure exact
456         energy conservation.
457      b) account for water temperature and for latent heat of freezing
458         in all processes (rain, run-off, ground storage)
459      c) compute surface and ground temperature implicitly.
460    o aim_v23 modification for new land model:
461      a) Treat separately land / ocean / sea-ice surface fluxes
462         to allow implicit computation of land & sea-ice surface temp.
463      b) add snow precipitation.
464    checkpoint52l_pre
465    
466    o fix problem (when 1 tile is empty) in min/max monitor.
467    o fix bug in timeAve (u,vZetatave in common block)
468    o no restoring terms under ice for pkg/seaice
469    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
470    o bug fix for pkg/seaice pickups
471    o change MNC call locations and add coordinate attributes
472    o mask vorticity at the corner ; affects global_ocean.cs output
473    o fix ini_curvilinear_grid ; test CS experiments with mpi
474    o aim.5l_cs: modify sea-ice fraction input file ; update output
475    o exf: Adding simple range check routine for exf fields after read
476    
477    checkpoint52k_post
478    o removed top-level directory "diags"
479      - we migrated these functions to pkg/timeave a long time ago
480    o fixed bug introduced in pkg/monitor
481    o accuracy ctrlprec = 32 insuffient for gradient checks using
482      averaged fields (I/O via cost_averages)
483      -> use ctrl.h in active_file*.F to control I/O precision.
484    o paramter list of CALL ADTHE_MAIN_LOOP
485    o added initial do_the_model_io to ecco
486    o set all ...Freq to zero after cost_final
487      taveFreq, dumpFreq, pChkptFreq
488    o MAIN and ECCO differentiability restored
489    
490    checkpoint52j_post
491    o fix nchklev in tamc.h for global_ocean...
492    o Bringing flow and store directives up-to-date
493    o Really weird thing!
494      call do_the_model_io from the_main_loop with parameters
495      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
496      TAF places a faulty re-call of initialise_varia
497      after cost_final call which should not be there!
498    checkpoint52j_pre
499    
500    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
501      error messages
502    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
503    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
504      debug output
505    o modfied mdsio_writefield.F to handle non-global files under exch2
506    o update AIM Cubed-Sphere exp (aim.5l_cs):
507      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
508    o update AIM Equatorial Channel exp:
509      use standard aim_v23 pkg and change the SST fields to be more realistic.
510    o globalFile now works with exch2
511    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
512      mon_vort3.F to make exch2 friendly with >1 tile per cube face
513    o limit timeave output for hi-res integrations
514    
515    checkpoint52i_post
516    o removed CPP_EEOPTIONS.h from verification/*/code
517    o updated the tiling for global_ocean_pressure
518    checkpoint52i_pre
519    
520    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
521      the old pkg/aim).
522    
523    checkpoint52h_pre
524    o shortened offending lines in exch2_send_rx?.template
525    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
526    o genmake2: add build & execute test for NetCDF code
527    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
528      old grid files, moved CPP_EEMACROS.h to pkg/exch2
529    o added useSingleCPUIO flag to monitor.F and mon_out.F
530    o added temporary hack for sea-ice dynamics on the cube:
531      metric terms are ignored and it is assumed that
532      there is no sea-ice on cube faces 1, 2, 4, and 5.
533    
534    checkpoint52f_post
535    o added exch2 cube routines to pkg/exch2
536    o modified hs94.cs-32x32x5 to use it
537    o added new grid files to hs94.cs-32x32x5
538    checkpoint52f_pre
539    
540    checkpoint52e_post
541    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
542      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
543    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
544      to work with implicit vertical advection and AB ;
545    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
546    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
547     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
548    checkpoint52e_pre
549    
550    o fix bug in impldiff when Nr=1 or Nr=2.
551    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
552    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
553    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
554      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
555    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
556    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
557    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
558    
559    checkpoint52d_post
560    o re-tiled many expts to allow comparison in multi-processor mode
561      - updated output accordingly
562      - changed hs94.128x64x5 to use intial T from file rather than use the
563        random number generator
564    o add infrastructure in model routines for fizhi and gridalt packages
565    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
566    o changes to permit hi-res, cubed-sphere, configuration
567      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
568      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
569      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
570        of surface winds for the cube
571      (A verification experiment, based on global_ocean.cs32x15, but with
572       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
573       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
574       complete with example surface forcing files and matlab scripts to look
575       at the output and compare it with that of global_ocean.cs32x15.)
576    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
577       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
578       to conform to the common rule.
579    o check-in the first version of the coupler + interfaces for multi-components
580       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
581       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
582       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
583       - ocean and atmos. share the same horizontal grid (no interpolation).
584       - exchanges between component and coupler is done in forward_step
585    o new verification experiment, cpl_aim+ocn:
586       coupled ocean - AIM atmosphere on cs32 grid.
587    
588    checkpoint52d_pre
589    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
590    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
591    
592    checkpoint52c_post
593    o Fixing OPTIONS files for use of exf:
594      - ALLOW_ECCO not needed
595      - ECCO_CPPOPTIONS.h should not be included from
596        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
597        as has been the case in the past
598      - All cal/exf related options are currently set in
599        single header file. Should remain so until we
600        agree on a consistent new policy.
601    o Removed all CPP options for cal package.
602      cal has no more CPP options.
603    o modified STOREs in GAD_ADVECTION
604    o corrected key comp. for passkey
605    
606    checkpoint52b_post
607    o new version: "thsice" of thermodynamic sea-ice pkg:
608     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
609     - modify fluxes but do not change theta directly;
610     - light cleaning of bulk_force pkg (still needed with thsice).
611     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
612       + output_thsice.txt to test thsice & bulk_force pkgs.
613    o put back grid & coriolis monitor output.
614    checkpoint52b_pre
615    
616    o call "do_the_model_io" at the beginning (=> dump initial state)
617    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
618    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
619      (need info on NUMBER_OF_PTRACERS)
620    o missing PTRACERS headers in some routines
621    o default tamc.h in pkg/autodiff supposed to crash
622      to ensure proper customization
623    
624    checkpoint52a_post
625    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
626      - moved surfaceTendencyTice from pkg/seaice to main code
627      - subroutine FREEZE_SURFACE now limits only surface temperature
628        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
629        => new output.txt for global_ocean.cs32x15 & global_with_exf
630      - keep the old version of FREEZE for backward compatibility;
631        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
632      - corresponding modifs for TAF directives
633    o added surface flux output variables to TIMEAVE_STATVARS
634    o time-averaged output for pkg/ptracers
635    o fix problem with ECCO-related divided adjoint
636      snapshot file was missing some ad-variables,
637      but no warning issued by TAF
638    
639    checkpoint52a_pre
640    o some bug fixes for #undef REAL4_IS_SLOW
641    
642    checkpoint52 = ecco_c52_e35
643    o after testing adjoints of checkpoint51u_post
644    
645    checkpoint51u_post
646    o this is the post-merge tag of the ecco-branch
647      (needs another clean checkout and re-testing)
648    o various natl_box_adjoint configs and results
649      but no input fields
650    o obcs adjoint not yet merged!
651    o adding ECCO global 1x1 and 2x2 degree configs
652    o updated/extended some store directives for seaice
653    o pkg/ecco now containes ecco-specific part of cost function
654    o top level routines the_main_loop, forward_step
655      supersede those in model/src/
656      previous input data.cost now in data.ecco
657      (new namelist ecco_cost_nml)
658    o in ctrl/ cleaned some cross-dependencies and updated CPP options
659    
660    checkpoint51t_post
661    o this is the pre-merge tag of the ecco-branch
662    
663    checkpoint51s_post
664    o cleanup: removed various obsolete #define-s
665    o pkg/grdchk
666      - renamed 'ph-grd 3' to 'grad-res'
667      - merged from ecco-branch
668        (remaining bug fixes for obcs gradient checks)
669      - additional high-precision output for testreport
670        (grep for 'precision_grdchk_result')
671    
672    checkpoint51r_post
673    o cleaned up or removed CPP_OPTIONS.h files
674    o updated results for some of the tests to reflect the new
675      optfiles (-ieee: -O0 instead of -O3)
676    
677    checkpoint51q_post
678    o cd_code:
679      - moved cd_scheme.F -> cd_code_scheme.F
680      - separate read_checkpoint from cd_code_ini_vars.F
681      - separated cd_code part from write_checkpoint
682      - updated AD_SOURCE, generated .flow
683      - added CD_CODE_VARS.h to the_main_loop
684      - Moving cd_code specific store dir.s to pkg/cd_code
685    o ctrl package totally restructured
686      - pack/unpack now optional and decoupled from
687        xx_/adxx_ I/O
688      - ctrl_pack/unpack cleaned
689        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
690      - confined inclusion of AD_CONFIG.h to where necessary.
691    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
692    
693    checkpoint51p_post
694    o create initial cd_code package
695      - WARNING: the initialization of fields within packages
696        is broken because INI_FIELDS (where READ_CHECKPOINT is
697        called) is called *before* PACKAGES_INIT_VARIABLES.
698        This seems to be backwards since
699        1) its important to initially zero the entire field including
700           the "halo" region
701        2) zeroing needs to be done *before* reading pickup info
702           and the pickup call might or might not happen in any
703           particular run
704      - this needs an overhaul for R2
705    o cleanup verification/*/code/GMREDI_OPTIONS.h
706    o cleanup testreport
707    
708    checkpoint51o_post
709    o bringing AD-related verif's up to date with genmake2
710      - carbon/
711      - global_ocean.90x40x15/
712      - hs.94.1x64x5/
713      - (front_relax/ )
714    o (more) consistent directory structure for AD-related verif.'s
715    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
716    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
717    o bug fix in find_alpha.F for MDJWF:
718      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
719        change rho -> rho-rhoConst
720      - replace call find_rho to find_rhonum
721    o initialisation of rFlx extended to full array (required by TAF)
722      and shifted to thermodynamics
723    o removed PTRACERS.h in ptracers routine
724    o added surfacetendencyPtr to S/R parameter list pracers_forcing
725    o Correcting initialisations for fVerU, fVerV.
726    o helping TAF to recognize dependency on kUp for
727      fVerU, fVerV
728    o Replacing delZ by delR in pkg/ctrl/
729    checkpoint51o_pre
730    
731    o undid all of cp51 pending some cleanups and discussion
732    o added the [#include "AD_CONFIG.h"] statement to all files that need
733       it for adjoint/tl #defines
734     o re-worked the build logic in genmake2 to support AD_CONFIG.h
735     o removed tools/genmake since it no longer works
736    
737    checkpoint51n_post
738    o modifications to make FREEZE flux visible to pkg/kpp
739      - moved surfaceTendencyTice from pkg/seaice to main code
740      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
741      - subroutine FREEZE now limits only surface temperature
742        (this means new output.txt for global_ocean.90x40x15,
743         global_ocean.cs32x15, and global_with_exf)
744    o added surface flux output variables to TIMEAVE_STATVARS
745    
746    checkpoint51n_pre
747    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
748    o added [#include "AD_CONFIG.h"] to all files that use the following
749      defines:
750      - ALLOW_ADJOINT_RUN
751      - ALLOW_TANGENTLINEAR_RUN
752      - ALLOW_ECCO_OPTIMIZATION
753    
754    checkpoint51m_post
755    o incorporating changes to get TAMC/TAF working in genmake2
756      - added new TAMC/TAF targets to the Makefile
757      - various cleanups related to package handling
758      - these changes should have no impact on the forward model
759    
760    checkpoint51l_post
761    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
762     - faster algorithm for cal_addtime.F
763     - higher precision arithmetic, where needed
764     - pkg/exf *startdate variables changed from calendar date to
765       model integration time
766    
767    checkpoint51l_pre
768    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
769    o enable to apply restoring on S & T only in a latitude band.
770    o update output (external_forcing_surf modif. change truncation errors)
771       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
772    
773    checkpoint51k_post
774    o change default to: useNHMTerms=.FALSE.
775     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
776       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
777     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
778        exp1, ideal_2D_oce
779     - change data file of oceanic exp (leave the results unchanged for now)
780       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
781    o set gravitySign automatically according to the vertical coordinate used
782      (and change sign: back to "logical" value: +1 when R increases downward)
783    o added an include barrier to the default CPP_OPTIONS.h and
784      removed the #include "PACKAGES_CONFIG.h" from it
785    o fix a bug in mom_fluxform (from chk51j_post)
786    
787    checkpoint51j_post
788    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
789    o adjusted some flow directives (dynamics, thermodynamics)
790    o added cubed-sphere case to test cost function
791    o heckpoint_lev?_directives.h now include
792      pkg-specific directives, whenever those are enabled.
793    o Moving pkg-specific flow directives to corresponding pkg
794      Moving pkg-specific differentiation list to corresponding pkg
795      Moving pkg-specific checkpoint-lev storing to corresponding pkg
796      ---> conventions are
797           - pkg_ad.flow
798           - pkg_ad_diff.list
799           - pkg_ad_check_lev?_dir.h
800    
801    checkpoint51i_post
802    o merge of the branch-genmake2
803      - knowingly breaks the older genmake
804      - automatic generation of all ALLOW_${PKG_NAME} defines
805      - new testreport supersedes older testscript
806    o large number of package inclusion and header cleanups
807    checkpoint51i_pre
808    
809    o new output for adjoin of global ocean vector invariant
810    o fix for checkpoint of thermodynamic seaice and bulk_force
811    o Steph gchem various cleanups
812    
813    checkpoint 51h_pre
814    o fixed some single quotes
815    o modify gchem pkg to be more versatile
816    o modifications to clean up dic pkg
817    o add pkg/cfc
818    
819    checkpoint51g_post
820    o provide links for ARPACK and ADM*TLM
821    o start removing verification/vero/
822    o update AD-related stuff
823      (in particular some IF-statements in model/src/ routines)
824    o adding to verification/global_ocean.90x40x15/ adjoint of
825      vector invariant setup
826    
827    checkpoint51f_post
828    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
829    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
830      of tracer Green's fucntions for ocean inversion project.
831    
832    checkpoint51f_pre
833    o Added on-the-fly spatial interpolation capability
834        "USE_EXF_INTERPOLATION" to pkg/exf.
835      - This is a temporary Cartesian-grid hack until
836        the super-duper ESMF coupler becomes available.
837      - See verification/global_with_exf/README for usage example.
838      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
839        flags and modified pkg/seaice accordingly.
840    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
841        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
842        non-local transport term.
843    
844    checkpoint51e_post
845    o pkg/mom_vecinv:
846      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
847      - add time-ave diagnostic of vorticity advection.
848    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
849    o atmospheric geopotential: - include water vapor effect;
850                                - use p^kappa in p* scaling.
851    o land pkg: read initial state from files.
852    o AIM : add stratospheric drag in the upper level
853    
854    checkpoint51d_post
855    o change function ILNBLNK (=> last non-blank char.) to return zero
856      (instead of the string length) when the string. char is empty
857    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
858    o modif's to restore TAMC compatibility
859      - avoid "_d" constructs in PARAMETER declarations
860      - avoid interrupting lines by comment lines
861    o Use cluster local disks for purely local I/O
862      vs. globally visible disks needed for ctrl stuff
863      (merged from ecco-branch)
864      - new active_file_loc... and mdsio_..._loc routines
865      - affected packages: autodiff, ctrl, grdchk, mdsio
866    
867    checkpoint51c_post
868    o introducing integer flag debugLevel
869      - debLevZero: suppress all output
870      - debLevA: standard
871      - debLevB: equivalent to current debugMode=.TRUE.
872    o introducing pathname variable mdsioLocalDir for mdsio
873      that can be specified at runtime
874      (relevant for cluster I/O to local disk)
875    `
876    >>>checkpoint51b_post
877    adjoint of ptracers
878    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
879    o extended state in checkpoint_lev?, etc.
880    o alternative ctrl/cost with tr1 or ptracer
881    o new comlev1_bibj_ptracers
882    o new ptracers.flow
883    o made ptracers_forcing same as external_forcing_s
884    o added verification for adjoint with ptracers
885      - adm. grdchk fail so far
886      - tlm. grdchk OK
887      - checked tapelev/comlev recomputations: OK
888    <<<checkpoint51b_pre
889    
890    checkpoint51a_post
891    o added code for biogeochemistry package
892      - new pkgs: dic, gchem
893      - new subroutine in ptracers
894    o modify code for biogeo packages
895      - in model/src and pkg/ptracers
896    
897    checkpoint51
898    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
899      - autodiff, ctrl, exf, grdchk, seaice
900      kept separate packages
901      - cost, ecco, obcs
902    o updating verification/internal_wave, verification/lab_sea
903      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
904    
905    checkpoint50i_post
906    o Preparing next differentiable checkpoint and sync
907      of MAIN vs. ecco-branch
908      - 1st step: this one is differentiable
909      - 2nd step: next(! not this) checkpoint will have updated packages
910                  from ecco-branch)
911    
912    checkpoint50h_post
913    o new package "land": provide surface BC for AIM.
914    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
915    o AIM: use true log-P extrapolation for near surface temp (= as in
916        F.Molteni paper) ; update aim.5l_cs output.
917    o New variable in PARM03 for more flexible pickups
918    o somewhat cleaned package initialisation sequence for
919      ctrl/ cost/ ecco/ in packages_... routines
920    
921    checkpoint50g_post
922    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
923      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
924      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
925        made the default because of faster convergence than ADI
926    
927    checkpoint50f_post
928    o exf totally restructured
929      - replaced all exf_set_ routines by one generic exf_set_gen.F
930        and made sure it's still differentiable
931      - split exf_getffields.F into new exf_bulkformulae.F
932      - exf_inscal_/exf_outscal_ suffixes consistent with field names
933      - updated adjoint/makefile and relevant verif. accordingly
934    
935    checkpoint50f_pre
936     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
937          + change Evap over land. (update aim.5l_cs output)
938     o added missing .cvsignores and made uniform across expts
939     o changed configuration of tidal_basin_2d expt
940     o added pkg/debug functions for tracing code in fatal crashes
941     o tidied pkg/monitor to use MONITOR_OPTIONS.h
942     o new fn in pkg/monitor to stop model if solution grows too big
943     o removed lots of single quotes from comments
944    
945    checkpoint50e_post
946    o make KPP work with PTRACERS
947     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
948       nearly a copy of kpp_transport_s
949     - there is no analogue to SurfaceTendencyS, so I have to use
950       gPtr(of the surface layer) instead
951    o add a new platform SunFire+mpi (SunFire 15000) to genmake
952    checkpoint50e_pre
953    
954    checkpoint50d_post
955    o change kpp output from multiple-record state files to single-record state
956      files analogous to write_state.F
957    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
958      analogous to the cg2d-related output.
959    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
960      so that writing to internal file fn (with length 512) fails.
961    checkpoint50d_pre
962    
963    checkpoint50c_post
964    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
965    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
966    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
967    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
968    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
969    
970    checkpoint50c_pre
971    Merging from release1_p13:
972    o bug fix for pkg/seaice dynamic solver
973    o Added SEAICE_initialHEFF to pkg/seaice
974    
975    checkpoint50b_post
976    o store u*,v* in gU,V instead of in guNm1,gvNm1
977    o in order to put the momForcing out of the Adams-Bashforth:
978      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
979      to timestep.F
980    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
981    o re-generate output for highly sensitive test-exp:
982       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
983    
984    checkpoint50b_pre
985    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
986    o corrected CPP option mismatch in exf_Bulk... functions for case
987      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
988    
989    checkpoint50a_post
990    o Bug fix for merging between c50 and KPP.
991      ikey was passed from thermodynamics to kpp_calc via
992      common block rather than being recomputed in kpp_calc,
993      in contradiction with new key itdkey.
994      New key ikppkey created, and tamc.h headers updated.
995    
996    checkpoint50
997    - 2nd step of merge with ecco-branch:
998      merge changes in ecco-branch back into main trunk
999    - bug fix in find_alpha
1000    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1001    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1002    - merged some sliced AD support routines
1003    
1004    checkpoint49
1005    merged from ecco-branch:
1006    o exf:
1007      - Enable initialisation of forcing fields to constant
1008        (runtime) values.
1009      - in exf_getffields.F
1010        Reduce i-/j-loop to interior domain, discarding overlaps.
1011        That also fixes wrong TAF-key computations for key_1, key_2
1012        with bulf formulae.
1013      - exf_init.F modify #ifdef for exf_init_evap
1014      - exf_getffieldrec.F, ctrl_getrec.F
1015        The following INT-usages are not safe:
1016          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1017          fldcount = int(fldsecs/fldperiod) + 1
1018        and were modified.
1019    o autodiff: checkpoint_lev...
1020      - updated storing for bulk formulae (some arrays were missing)
1021      - added state for seaice package
1022      - synchronized with main branch
1023    o DIVA:
1024      Modif.s in
1025      - the_main_loop.F
1026      - the_model_main.F
1027      and added cost_final_restore.F cost_final_store.F
1028      o With these changes, it is possible to fully separate
1029        the first forward run to compute the cost function (mdthe_main_loop)
1030        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1031        into separate model executions.
1032        This enables better tuning of DIVA to given queue sizes.
1033      o Loss of cost function value in consecutive DIVA runs is
1034        fixed by storing to 'costfinal' file.
1035      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1036        beginning/end of adjoint integration is accounted for.
1037      The current changes apply to TAF-1.4.26.
1038      TAF has one remaining bug, requiring one manual change
1039      (see MITgcm manual).
1040    o cal: synchronized between MAIN and ecco-branch
1041    
1042    checkpoint48i_post
1043    o Changes to restore differentiability of code w.r.t. previous tag
1044      (mostly adding new routines to make list and replacing
1045      pressure by totPhiHyd).
1046    o Updated and merged grdchk package
1047      - has both ADM and TLM checks
1048      - works for single- and multi-proc.
1049      - output cleaned
1050      - worked successfully for parallel DIVA
1051    o genmake:
1052      - Adding -platform=SP4
1053      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1054    o Modif. for DIVA:
1055      ctrl_unpack should not be called in intermediate DIVA interval.
1056      (similar thing would apply for active files such as
1057      tbar, sbar, psbar, which should not be reinitialised;
1058      only relevant for ecco-branch)
1059    
1060    checkpoint48h_post
1061    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1062    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1063    o Added SEAICE_initialHEFF to pkg/seaice
1064    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1065    
1066    checkpoint48g_post
1067    --- EOS:
1068    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1069      store total Potential in totPhyHyd for diagnostics & EOS.
1070    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1071    --- Pressure/geopotential gradient:
1072    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1073    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1074      ( changes results of global_ocean_pressure )
1075    o NLFS + z-coord.: add eta*Rho' contribution.
1076    o accurate phiHyd when using interface-W at the middle between 2 centers
1077     ( changes results of ideal_2D_oce )
1078    o includes r* 2nd term in potential gradient.
1079    
1080    checkpoint48f_post
1081    Merging from release1_p12:
1082    o Modifications for using pkg/exf with pkg/seaice
1083      - improved description of the various forcing configurations
1084      - added basic radiation bulk formulae to pkg/exf
1085      - units/sign fix for evap computation in exf_getffields.F
1086      - updated verification/global_with_exf/results/output.txt
1087    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1088      (SBO) core products, including oceanic mass, center-of-mass,
1089      angular, and bottom pressure (see pkg/sbo/README.sbo).
1090    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1091      to avoid negative values in shallow regions.
1092      - updated verification/natl_box/results/output.txt
1093      - updated verification/lab_sea/results/output.txt
1094    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1095    o Added useSingleCpuIO option (see PARAMS.h).
1096    o Updated useSingleCpuIO option in mdsio_writefield.F to
1097      work with multi-field files, e.g., for single-file pickup.
1098    o pkg/seaice:
1099      - bug fix in growth.F: QNET for no shortwave case
1100      - added HeffFile for specifying initial sea-ice thickness
1101      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1102    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1103      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1104    o pkg/seaice:
1105      - adjoint-friendly modifications
1106      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1107    
1108    checkpoint48e_post
1109    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1110    o dynamics: change definition of computational domain & adapt mom_fluxform
1111      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1112    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1113        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1114        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1115        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1116        inverted_barometer solid-body.cs-32x32x1
1117      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1118    
1119    checkpoint48d_post
1120    o in preparation for r*:
1121     a) use pre-computed gradient of hydrostatic potential:
1122        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1123     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1124        => affects results of glob_oce_pressure (different truncation error)  
1125      update output.txt of ideal_2D_oce & global_ocean_pressure
1126    
1127    checkpoint48d_pre
1128    o in preparation for r*:
1129      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1130      pass the 2 comp. of the grad. as arguments to momentum S/R.
1131      but for the moment, only used if it does not change the results.
1132    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1133    
1134    checkpoint48c_post
1135    Modifications in treatment of initial flux forcing controls
1136    to avoid extra storing of flux fields.
1137    
1138    checkpoint48c_pre
1139    o Added tidal_basin_2d experiment (currently 1D!)
1140    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1141    
1142    checkpoint48b_post
1143    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1144     (modification to pressure gradient not yet implemented)
1145    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1146      (for U & V) that are used for vertical advection of momentum.
1147    
1148    checkpoint48a_post
1149    o In preparation for r*, use temp. array to compute vertical transport
1150       in flux-form momentum pkg. => change results of few test-exp.
1151      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1152                        lab_sea, natl_box & plume_on_slope
1153    
1154    checkpoint48
1155    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1156    
1157    checkpoint47j_post
1158    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1159    o moved adexch from forward_step to addummy_in_stepping
1160    o added exch in ctrl_map_...
1161    o aveFreq.=0. at end of cost_final to avoid overwrite in
1162      reverse checkpointing loop
1163    o Yet more changes in gmredi:
1164      * adgmredi_calc_tensor
1165        avoiding all recomputation of gmredi_slope_limit
1166      * adgmredi_x/y/rtransport
1167        added flag for excessive storing to avoid recomp. of
1168        u/v/rtans, dTdx/y/z
1169        -> this is not really necessary and very memory-consuming
1170      * adgmredi_slope_psi:
1171        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1172      * gmredi_slope_limit
1173        re-activated full calculation of taperfct for case 'ac02'
1174    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1175    
1176    checkpoint47i_post
1177    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1178    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1179      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1180    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1181    o gmredi: fix few bugs.
1182    
1183    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1184    This will be a good checkpoint to plug into the ecco-branch.
1185    o few modif.'s to get latest version adjointed
1186      (mainly kick out code in ini_linear_phisurf)
1187    o modif's to run adjoint with exactConserv
1188    o case GM_BOLUS_ADVEC should be cleaned
1189      S/R gmredi_slope_psi should be cleaned
1190    o verification/carbon now has exactConserv=.TRUE.
1191    
1192    checkpoint47g_post
1193    o time-average AIM output: becomes independent from statvars time-average
1194      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1195    o After TAF bug fix:
1196      Tested adjoint of gmredi package.
1197      Tests were done with checkpoint47 rather than with latest
1198      checkpoint47f_post since the latter is broken for the adjoint
1199      verification/carbon/ contains both ADM and TLM gradient checks.
1200    Here they are, before they get changed/lost/stolen.
1201    Mostly modif.'s to fix numerical sensitivities.
1202    Gradient checks OK for
1203    - GM_taper_scheme:
1204      * clipping
1205      * ac02
1206      * linear
1207      * glw91
1208      * dm95
1209      * ldd97
1210    - GMREDI_OPTIONS:
1211      * GM_VISBECK_VARIABLE_K
1212      * GM_NON_UNITY_DIAGONAL
1213      * GM_EXTRA_DIAGONAL
1214      * GM_BOLUS_ADVEC
1215    in conjunction with data.gmredi parameters to be checked in
1216    in a few minutes under verification/carbon/code/
1217    
1218    checkpoint47f_post
1219    Merging from release1_p10:
1220    o modifications for using pkg/exf with pkg/seaice
1221      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1222        and SEAICE_EXTERNAL_FLUXES
1223      - pkg/exf CPP options EXF_READ_EVAP and
1224        EXF_NO_BULK_COMPUTATIONS
1225      - usage examples are Experiments 8 and 9 in
1226        verification/lab_sea/README
1227      - verification/lab_sea default experiment now uses
1228        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1229    
1230    checkpoint47e_post
1231    o created a tag prior to creating a branch
1232    
1233    checkpoint47d_post
1234    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1235      at the bottom boundary had an erroneous half slip boundary condition
1236    o added bottom drag and no slip boundary condition capabilities to
1237      oceanic pressure coordinates code
1238    o added new verification experiment global_ocean_pressure, this experiment is
1239      also described in the tutorial section of the manual
1240    checkpoint47d_pre
1241    
1242    checkpoint47c_post
1243    o Added a verification experiment for a global cubed-sphere ocean run
1244      -  verification/global_ocean.cubed32x32x30
1245      -  uses pkg/therm_seaice and pkg/bulk_forcing
1246    
1247    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1248    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1249      when using P-coordinate; only implemented for atmospheric config.
1250    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1251      NOTES: requires option NONLIN_FRSURF to be "#define".
1252    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1253    
1254    checkpoint47b_post
1255    Merging from release1_p9:
1256    o pkg/seaice
1257      - removed GOTO's and added taf directives
1258      - double precision constants to reduce the g77 (Linux)
1259        to F77 (SGI) differences reported in release1_p8
1260    o tools/genmake
1261      - added SGI options
1262    o verification/testscript
1263      - updated to that of checkpoint47a_post
1264    o verification/global_ocean.90x40x15/input/eedata
1265      - modified for SGI f77 compatibility
1266    o verification/lab_sea
1267      - added description of sea-ice model
1268      - added missing matlab routines
1269      - added test of thermodynamics parallelization
1270    
1271    checkpoint47a_post
1272    o new pkg: aim_v23
1273     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1274       for now, keep the same surface forcing as before.
1275     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1276     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1277     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1278    o add diagnostic of surface correction term in monitor output
1279    
1280    o bulk_force and therm_seaice
1281    - Two packages:  bulk_force (Bulk forcing)
1282      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1283    - Earlier integration from Stephaine Dutkiewicz
1284      and Patrick Heimbach.
1285    - Two ifdef statements for compile time,
1286       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1287    
1288    checkpoint47
1289    differentiable version of checkpoint46n_post
1290    o bug fix in quasihydrostaticterms
1291    o * "clean" adjoint code (in terms of extensive recomputations)
1292        can now be obtained for all GMREDI options (i.e. for
1293        - GM_VISBECK_VARIABLE_K
1294        - GM_NON_UNITY_DIAGONAL
1295        - GM_EXTRA_DIAGONAL
1296        - GM_BOLUS_ADVEC )
1297      * However, wrong gradient check problem remains unsolved.
1298      * New CPP options have been introduced for different
1299        tapering schemes
1300    o external_fields_load now part of differentiation list
1301    o pressure needs multiple storing;
1302      would be nice to have store_pressure at beginning or
1303      end of forward_step, e.g. by having phiHyd global (5-dim.)
1304      (NB: pressure is needed for certain cases in find_rho,
1305      which is also invoked through convective_adjustment).
1306    o recomputations in find_rho for cases
1307     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1308    o #define ATMOSPHERIC_LOADING should be differentiable
1309    o ini_forcing shifted to begining of initialise_varia
1310    o Incorporating QNVS line search routines into MITgcm
1311      (this is separate code, and therefore not under pkg)
1312      lsopt/, optim/
1313    o Updated verification/carbon/
1314      - #define GM_VISBECK_VARIABLE_K
1315      - GM_taper_scheme    = 'ldd97'    
1316    
1317    checkpoint46n_post
1318    Merging from release1_p8:
1319    o verification/natl_box:
1320      updating new external_fields_load routine
1321    o New package: pkg/seaice
1322      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1323      The sea-ice code is based on Hibler (1979-1980).
1324      Two sea-ice dynamic solvers, ADI and LSR, are included.
1325      In addition to computing prognostic sea-ice variables and diagnosing
1326      the forcing/external data fields that drive the ocean model,
1327      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1328      The implied surface heat flux is then stored in variable
1329      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1330      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1331      non-local transport term.  Because this call precedes model
1332      thermodynamics, temperature under sea-ice may not be "exactly" at
1333      the freezing point by the time theta is dumped or time-averaged.
1334      N.B.: fairly large differences in accuracy occur across
1335            different platforms/compilers; comparison between
1336            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1337            generated output gives:
1338       T           S           U           V
1339      C D M    c        m  s        m  s        m  s        m  s
1340      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1341      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1342      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1343    
1344      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1345    o GAD:
1346      - generated new common blocks to account for call of
1347        same gad routines with differing traceridentities
1348        (needed to modify tracerIdentity indices in GAD.h)
1349      - generated separate common blocks for case useCubedSphereExchange
1350        (Department of Futurology)
1351      - parameter lists to gmredi_?transport: added tracerIdentity
1352      - added new key indices to tamc.h
1353    o external_fields_load:
1354      - added this routine to TAF list
1355      - needed to make some common blocks global and additional storing
1356        along the same lines as exf package (checkpoint_lev?_directives.h)
1357    o exf:
1358      updated external forcing package
1359      - bug fixes carried over from ecco-branch
1360        (missing OBCS_OPTIONS.h in two routines)
1361      - enable easy to use "no forcing".
1362      - added exf I/O for atmospheric loading
1363      - added exf I/O for runoff data
1364      - transfered scaling between exf <-> MITgcm to exf namelist
1365    o Adding new verification experiment global_with_exf.
1366      This verification experiment is almost identical to the
1367      global_ocean.90x40x15 experiment, except that it uses
1368      the exf (and cal) package instead of the
1369      external_fields_load routine (cf README file).
1370    
1371    checkpoint46m_post
1372    o modified testscript to return -- when there are no lines of "%MON" output
1373    o added new flag "quasiHydrostatic" for QH mode
1374      and new routine quasihydrostaticterms()
1375    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1376      New routine: mom_u_coriolis_nh()
1377    o fixed sign of non-hydrostatic metric terms in u and v equations.
1378      Depend on correct sign of gravitySign.
1379    o added work.pc* to .cvsignore in aim directories using ifc
1380    o introduced flag for controllin non-hydrostatic metric terms
1381    o removed gravitySign from PARM04
1382    o switched to g77/ifc from pgf77 in aim experiments
1383    
1384    checkpoint46l_post
1385    o made convective adjustment work with pressure coordinates:
1386     - changed the direction of k-loop in convective_adjustment.F for the
1387       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1388     - adjusted the reference pressure k-index in convective_adjustment.F
1389     - adjusted the convection condition in convect.F (in analogy to
1390       calc_ivdc.F)
1391     - convective_adjustment no longer computes anything on the halos
1392     - removed the warnings about negative salinity from find_rho.F and
1393       find_alpha.F; instead the new routine look_for_neg_salinity, called
1394       at the beginning of find_rho, find_alpha, and find_beta, does a
1395       check of the entire slice, if CPP-option
1396       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1397    checkpoint46l_pre
1398    
1399    checkpoint46k_post
1400    o fixed the verification/global_ocean.90x40x15 experiment:
1401     - new bathymetry (the world according to A., JMC, and M.)
1402     - new initial fields and forcing fields (*.bin files)
1403     - new POLY3.COEFFS (for the next release one should switch to a full
1404       equation of state: JMD95P or MDJWF)
1405     - fixed several errors and redundancies in the data file
1406     - experiment uses looped cells
1407     - added matlab directory with diagnostic scripts for plotting of output
1408    
1409    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1410     - read AIM physics parameters from a file (data.aimphys)
1411     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1412    
1413    checkpoint46j_post
1414    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1415    o move wVel computation at the end of the time step, in S/R integr_continuity
1416    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1417    o update timeave pkg for wVel diagnostic.
1418    checkpoint46j_pre
1419    
1420    checkpoint46i_post
1421    o Clean up AIM package (and keep the results unchanged):
1422      include CPP_OPTION and use IMPLICT NONE in all routines ;
1423      declare all the variables _RL ; use _d 0 for all numerical constants.
1424      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1425    
1426    checkpoint46h_post
1427    o cleaned up the use of rhoNil and rhoConst.
1428      - rhoNil should only appear in the LINEAR equation of state, everywhere
1429        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1430        and the dynamical equations are all divided by rhoConst
1431    o introduced new parameter rhoConstFresh, a reference density of fresh
1432      water, to remove the fresh water flux's dependence on rhoNil. The default
1433      value is 999.8 kg/m^3
1434    o cleanup up external_forcing.F and external_forcing_surf.F
1435      - can now be used by both OCEANIC and OCEANICP
1436    checkpoint46h_pre
1437    
1438     Added code to convert surface volume flux (fresh water) into
1439     a mass flux when using P coordinates in the ocean (OCEANICP).
1440     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1441    
1442    checkpoint46g_post
1443    o Include a new diagnostic variable phiHydLow for the ocean model
1444      - in z-coordinates, it is the bottom pressure anomaly
1445      - in p-coordinates, it is the sea surface elevation
1446      - in both cases, these variable have global drift, reflecting the mass
1447        drift in z-coordinates and the volume drift in p-coordinates
1448      - included time averaging for phiHydLow, be aware of the drift!
1449    o depth-dependent computation of Bo_surf for pressure coordinates
1450      in the ocean (buoyancyRelation='OCEANICP')
1451      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1452        Theta, Salinity, and Pressure in the parameter list. This routine is
1453        presently contained in find_rho.F. This routine does not give the
1454        correct density for 'POLY3', which would be a z-dependent reference
1455        density.
1456    o cleaned up find_rho
1457      - removed obsolete 'eqn' from the parameter list.
1458    o added two new verification experiments: gop and goz
1459      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1460    checkpoint46g_pre
1461    
1462    checkpoint46f_post
1463    o Enable tangent linear (forward mode) gradient checks:
1464      - extended active file handling to g_... files
1465      - added TANGENT_SIMULATION to theSimulationMode
1466      - extended grdchk package accordingly
1467    o added tangent linear setup in verification/carbon/code_ftl
1468    o added adjoint setup in verification/front_relax/code_ad
1469    
1470    checkpoint46e_post
1471    o Added new equation of state -> MDJWF
1472      - EOS of McDougall et al., 2002, JAOT, submitted
1473      - caveat: the equation of state is only valid for a smaller (more
1474        realistic?) range of values than JMD95P/Z and UNESCO
1475      - added masks to the calculation of pressure in store_pressure
1476      - added more check values for density in check_eos (ini_eos.F), some of
1477        the old check values are out of the range of the MDJWF-eos, so don't
1478        expect perfect matches for those
1479    checkpoint46e_pre
1480    
1481    checkpoint46d_post
1482    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1483      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1484      case of pressure coordinates. eosType='JMD95Z' in
1485      combination with buoyancyRelation='OCEANICP' now causes an error.
1486    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1487      in find_alpha/beta.
1488    checkpoint46d_pre
1489    
1490    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1491      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1492    
1493    checkpoint46c_post
1494    o Changes necessary for ocean in p-coordinates
1495     -  Added new buoyancy relation = 'OCEANICP'
1496     -  Added new parameters = gravitySign (this used to be contained inside
1497        the factor dRdZ which I added when we first switched to R coordinates).
1498     X GM/Redi is not compatible (yet)
1499     X bottom drag and no-slip need to be debugged.
1500    checkpoint46c_pre
1501    
1502    checkpoint46b_post
1503    o Added new equation of state -> JMD95Z and JMD95P
1504      - EOS of Jackett and McDougall, 1995, JAOT
1505      - moved all EOS parameters into EOS.h
1506      - new routines ini_eos.F, store_pressure.F
1507    o Added UNESCO EOS, but not recommended because it requires
1508      in-situ temperature (see JMD95)
1509    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1510      unesco.f to be used with POLY3
1511    checkpoint46b_pre
1512    
1513    checkpoint46a_post
1514    o Added (atmospheric) pressure loading
1515      - new field in FFIELDS.h, etc...
1516      - new cpp flag ATMOSPHERIC_LOADING
1517    o Changed hFacC to _hFacC in calc_phi_hyd.F
1518    o Added SHORTWAVE_HEATING to some files for consistency
1519    checkpoint46a_pre
1520    
1521    checkpoint46
1522    further merges from release1_p5
1523    o new ctrl package
1524      - adopted from ECCO environment to enable optimization
1525      - added Eliassen Palm fluxes to controls
1526    o added Eliassen Palm flux controls to gradient check package
1527    o cost package
1528      - Compatible with new ctrl package
1529      - added Eliassen Palm cost hooks
1530      - modif's of existing cost functions
1531    o Adjoint-related bug fixes in kpp:
1532      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1533      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1534    o autodiff package
1535      - flow directives:
1536        + new for S/R do_the_model_io
1537        + enhanced for S/R checkpoint
1538        + new gmredi.flow
1539      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1540        disable adcommon.h/g_common.h by default.
1541      - fixed problem for adjoint of global_max
1542    o modified verification/carbon/
1543    o New setup for adjoint of global_ocean
1544    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1545    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1546    o incorporated hooks for sponge layer code (external_forcing.F)
1547    
1548    checkpoint45d_post
1549    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1550    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1551      (affects plume_on_slope "cg2d" output)
1552    o add new parameter deltaTfreesurf for free-surface time stepping
1553    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1554    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1555    o change phiMin in exp1 (to agree with documentation)
1556    o add new flags:
1557     - T,S forcing inside/outside Adams-Bashforth
1558     - turn off temp,salt advection and/or forcing
1559     - for each tracer, define internal flag for multiDimAdvection & A-B
1560    o monitor: change definition of KE to check conservation of Energy
1561    
1562    checkpoint45c_post
1563    o Removed f90 comments ("!")
1564    o Modified initialisations to enable exf package for MITgcm
1565      (without invoking ECCO_PACKAGE).
1566    o modifications to gradient check package (Martin Losch)
1567      - enable centered differences
1568      - modified format of standard output
1569    
1570    checkpoint45b_post
1571    o cleaned exchange calls in cg2d
1572    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1573    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1574      to configure barotropic setup (Martin Losch)
1575    o moved some initialisations within bi,bj loop in dynamics
1576      (TAF flow dependency)
1577    o in initialise_varia, moved call packages_init_variables
1578      before convective_adjustment_init
1579      (corresponding adjustment of TAF tape initialisation).
1580    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1581    
1582    checkpoint45a_post
1583    o compute Rho over the whole domain (extend iMin,jMin indices)
1584    o specific exchange for X-slice domain (case Ny=1)
1585    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1586    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1587    
1588    checkpoint44h_post = checkpoint45
1589    o Fix to restore differentiability:
1590      place at which packages_init_variables is called in
1591      initialise_varia is crucial for reverse control flow.
1592    o modifications in GMRedi to enable stable adjoint
1593      (corresponding modif's in thermodynamics, dynamics)
1594    o added missing hook for sponge layer code in external_forcing
1595    o modified test cost functions
1596    o storing in gad_advection (plus removal of write(0,*)!
1597    o missing headers TR1.h added in convective_adjustment routines
1598    o errorMessageUnit set non-equal zero in eeboot
1599      (conflict on some platforms, e.g. IBM SP3)
1600    o modified carbon verif.
1601    
1602    checkpoint44h_pre
1603    o vertical grid option: allow to put the Interface at the middle between
1604      2 cell-centers ; replace delZ in pkg/kpp by drF.
1605    o GM Advective form: Tracers are advected using the residual transport (=
1606      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1607    
1608    checkpoint44g_post
1609    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1610      results) ; ifdef missing in thermodynamics.F
1611    
1612    checkpoint44f_pre,checkpoint44f_post
1613    o added PTRACERS package
1614      This allows an arbitrary number of passive tracers to be integrated
1615      forward simultaneously with the dynamicaly model.
1616      + Implemented so far:
1617        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1618        - I/O and checkpointing
1619        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1620      + Not implemented so far:
1621        - KPP
1622        - OBCS
1623      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1624        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1625        line in data.pkg.
1626      + This package is disabled by default since it increases storage.
1627    
1628    
1629    o testscript: added -cleanup option
1630    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1631                 b) enable to filter 2D fields.
1632    
1633    checkpoint44e_pre,post
1634    o re-wrote convective adjustment to use pre-calculated weights
1635      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1636      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1637      Original calls to convect() still in place.
1638    
1639    chkpt44d_pre,post
1640    o added missing EXCLUDE_MONITOR flags
1641    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1642      (incompatible typ in MIN/MAX expressions caused problems
1643      on IBM SP3)
1644    o in genmake added variable MAKEDEPEND
1645      plus resetting for case SunOS
1646    o added timer_stats.c routine for IBM SP3
1647    o removed variables in dynamics
1648    !!! I forgot to create tag chkpt44d_pre !!!
1649    !!! But chkpt44d_pre = chkpt44c_post    !!!
1650    
1651    o real fresh water flux implemented with non-linear free-surface.
1652    
1653    chkpt44c_pre,post
1654    o few fix (mask in shap_s2, EmPmR in external_field_load,
1655      USE_NATURAL_BCS in solve_for_P);
1656    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1657    
1658    checkpoint44b_pre/_post
1659    o merge of relevant stuff from the ecco-branch:
1660      - genmake: removed $S64 overwrite for case SunOS
1661      - pkg/exf: update and corrections for field swapping and obcs
1662      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1663                  harmonized between ECCO and MITgcm
1664      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1665                      updated checkpointing_lev... lists for obcs
1666      - model/src: minor changes in forward_step, plot_field
1667                   added directive for divided adjoint in the_main_loop
1668      - pkg/mdsio: added mdsio_gl_slice
1669    
1670    o check parameters & config (chkpt44a_pre,post)
1671    o OBC and NonLin_FrSurf.
1672    
1673    checkpoint44
1674    o fix bug in mom_vi_del2uv
1675    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1676    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1677    o update AIM experiments (NCEP input files)
1678    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1679    o added some stuff for AD
1680    
1681    checkpoint43
1682    o added two new advection tests
1683    o added global 4x4 degree ocean test
1684    o added test of H&S94 with free surface on cube
1685    o some final mods for gradient check, adjoint,...
1686    
1687    checkpoint42
1688      Fixed AD-related problems:
1689    o Store directives up-to-date with re-arranged Adams-Bashforth
1690      (mainly thermodynamics.F)
1691    o New store directives for multi-dim. advection schemes
1692      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1693      * new common block and key passkey
1694      (mainly gad_advection.F)
1695    o Modified store directives for split of dynamics/thermodynamics
1696      for the case ALLOW_KPP
1697    o Cleaned argument list for timestep_tracer.F
1698    
1699    checkpoint41
1700    o re-formatted/added comments in prologues of key subroutines
1701      to work with protex
1702    
1703    checkpoint40
1704    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1705    o added FLT (floats) package from Arne along with demo. experiment
1706    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1707      implementation of forward-in-time forcing terms
1708    o more mods for non-linear free-surface including new variable
1709    o modified multi-dim method to work on cube
1710    o bug fix in KPP (from DM)
1711    
1712    checkpoint40pre9
1713    o added DST advection schemes
1714    o fix MPI bug on SGI's
1715    o modifications for non-linear free-surface
1716    o fixed conditionals for fixed flow/passive tracer only mode
1717    o added tension/strain form of stress tensor
1718    o changes to commenting of arguments for TAF/TAMC
1719    o added/updated many matlab scripts
1720    o added multi-dimensional advection method for tracers
1721      
1722    checkpoint40pre8
1723    o new package rw/
1724      Added method for dumping intermediate local arrays:
1725      mdsio_writetile - same as mdsio_writefield except works from inside
1726                        bi,bj loop
1727      mdsio_writelocal - same as mdsio_writetile except works for local
1728                         arrays
1729      write_local_r? - higher-level wrapper for mdsio_writelocal
1730      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1731      Example given at end of mom_vecinv.F that dumps some local arrays.
1732    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1733      control flux-form versus vector invariant code.
1734      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1735      or genmake -DISABLE ...
1736    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1737      (additional storing is now needed for case vecinv;
1738      currently nothing implemented to switch this storing off
1739      in case fluxform is used since no CPP flag available).
1740    
1741    checkpoint40pre7
1742    o bug fix in dynamics.F
1743      calc_viscosity called before k=1,Nr loop.
1744    o added some #ifdef's ALLOW_PASSIVE_TRACER
1745    o cleaned initialisations in ctrl_map_ini
1746      related to TAF
1747    
1748    checkpoint40pre6
1749    o split dynamics into thermodynamics & dynamics
1750    o corresponding split of calc_diffusivity into
1751      calc_diffusivity, calc_viscosity
1752      (kpp_calc_diff, kpp_calc_visc).
1753    o Added diffkr, kapgm to control variables
1754    o bug fix in gmredi_slope_limit for ldd97
1755    
1756    checkpoint40pre5
1757    o proper initialization of Adams-Bashforth time stepping
1758      + uses forward step for very first step of model (iter=0)
1759    o re-generated *all* output since almost all output is modified by this
1760      change (sorry but we've been putting this one off for about 2 years)
1761      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1762        *not* regenerated since they are already out of date and I don't
1763        want to create the impression that they are suddenly working.
1764    o removed KAP stuff for DEC's
1765    o modified/added many .cvsignore files in */code and */input
1766    o added new expt "solid-body.cs-32x32x1"
1767      + this uses an alternative form of ini_curvilinear_grid.F which
1768        is not necessarily any better than the current one...
1769    
1770    checkpoint40pre4
1771    o added re-initialisations of utrans,vtrans,rtrans in
1772      calc_common_factors which are crucial for TAF.
1773    o extended iMin,jMin range for calc_common_factors,
1774      calc_diffusivity
1775    o added option ALLOW_PASSIVE_TRACER
1776    o a few minor updates and fixes
1777    
1778    checkpoint40pre3
1779    o created calc_gtr1.F for gad package
1780    o split the_main_loop and re-introduced forward_step
1781    o some recomputations of nIter0 for TAMC
1782    
1783    checkpoint40pre2
1784    o Updated to latest branch of AJA, JMC
1785    o Added gradient check package
1786    o Added routines for passive tracer handling
1787    o Added carbon sequestration sensitivity experiment
1788    
1789    checkpoint39
1790     o Modifications and fixes to support TAMC
1791       (mainly missing or wrong directives)
1792     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1793       in addummy_in_stepping
1794     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1795     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1796     o Included following packages:
1797       cal: calendar
1798       exf: external forcing
1799       ecco: essential routines to control use of cal, exf
1800             (NB: this is not the full ECCO environment)
1801     o disabled some packages by default in genmake
1802    
1803    checkpoint38
1804     o see notes_c37_adj.txt
1805     o corrected wrong layer index in external_forcing_t
1806     o replaced the_main_loop/forward_step by the_main_loop
1807     o removed forceoutput from write_state
1808       (replaced criteria for initial/final state)
1809     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1810    
1811    checkpoint37
1812     o mdsio.F routine split and packaged in pkg/mdsio
1813       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1814        used unless genmake -disable=mdsio)
1815     o allow a more precise surface-geopotential gradient for the atmosphere
1816       taking into account the change in space of Alpha (=1/rho) at the surface.
1817     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1818       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1819     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1820       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1821       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1822     o Time-Average diagnostics defined as a pseudo package "timeave".
1823     o pickup files : old pickup (before c35) did not work with new code (c35
1824       and after) unless activating 2 commented lines in initialise-varia.
1825     o Non-Hydrostatic pickup file Pb fixed.
1826     o bug with Rigid-lid version (since c35) fixed.  
1827    
1828    checkpoint36
1829     o implement Crank-Nickelson barotropic time-stepping
1830     o recover Time-Average diagnostics
1831     o fix Pb in checkpoint (PR#19)
1832     o AIM become a standard package ; clean unused CPP_kees
1833    
1834    checkpoint35
1835     o subtantial rewrite of dynamics.f
1836     o allows staggered time-stepping
1837     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1838     o added bottom drag (linear + quadratic)
1839    
1840    checkpoint34
1841     o Modified exchange routines for correct reverse simulation.
1842     o Added verification output to comply with bug fix in impldiff.F
1843       as of c33 (exp2, natl_box).
1844     o Corrected store directives in dynamics.F
1845     o Corrected array boundaries in impldiff.F
1846     o Corrected array dimensions in gmredi.
1847       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1848     o Added routine GLOBAL_SUM_INT to global_sum.F
1849     o Added mdsio_gl.F for ECCO purposes.
1850    
1851    checkpoint33
1852     o Fixed bug in lower BC in impldiff.F
1853     o Fixed confusion about units of forcing arrays in FFIELDS.h
1854       namely Fu,Fv,Qnet,Qsw,EmPmR:
1855       - Removed verification/natl_box/code/external_fields_scale.F
1856         (did not differ from that in model/src)
1857       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1858         (see FFIELDS.h for description)
1859       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1860         kpp_calc.F and kpp_transport_t.F
1861       - Removed model/src/external_fields_scale.F and calls to it
1862       - verification/natl_box uses flux data with "atmospheric" sign so
1863         a special version of external_fields_load.F is used to
1864         change the data as it's read in. This way, the arrays
1865         have the right units and signs at all times tha a user could
1866         possibly use them.
1867     o Corrected genmake to delete a temporary file during configuration
1868    
1869    checkpoint32
1870     o Scaling of forcing fields moved from external_forcing.F to
1871       external_fields_scale.F, called directly after loading fields.
1872     o Surface relaxation terms added to surface tendency fields in
1873       extra subroutine.
1874     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1875       fields.
1876     o Changes in GMRedi to comply with packaging structure.
1877     o Modifications and bug fixes in KPP package.
1878     o Verification experiment for KPP added (verification/nat_box/)
1879    
1880    checkpoint31
1881     o Packages interface brought in line with defined standard
1882       -> new routines packages_...F
1883       -> changes in initialise_fixed.F, initialise_varia.F
1884       -> enables initialisation interface for ECCO package
1885     o Rescaling of external forcing fields immediately after read
1886       (removed from external_forcing.F)
1887       -> new: surface_fields_scale.F
1888       -> affects ini_foorcing.F, external_fields_load.F
1889     o Computation of surface tendencies before tendency updates.
1890       -> new: external_forcing_surf.F
1891     o Change of variable names useGMRedi, useKPP, useECCO
1892     o Further changes in dynamics.F, impldiff.F for TAMC
1893     o Tested for experiments 0, 2, 4.
1894       - not yet tested for GMRedi.
1895       - not yet tested for KPP.
1896    
1897    checkpoint30
1898     o Updates for OBCs
1899     o New experiment for test OBCs (internal_wave)
1900     o New output.txt in verification/exp4/results/
1901     o Updates for KPP: calculation of viscosity corrected, new variables
1902       kpp_dumpFreq and kpp_taveFreq
1903     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1904       and entry for T90 in genmake
1905    
1906    checkpoint29
1907     o packaged KPP and GM/Redi
1908    
1909    checkpoint28
1910     o Corrected initialization of hFacMin for difference vertical coordinates
1911     o Modified calculation of partial cell thickness to more robust algorithm
1912     o config_summary.F: replaced write_1D_... by write_0D_...
1913       read_write.F: added subroutines write_0D_...
1914     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1915       included some initialisations required for TAMC.
1916     o routine calc_isoslopes: modified sqrt computation to make it
1917       differentiable for zero argument.
1918     o routines dynamics, impldiff:
1919       included store directives and tape key computations required for TAMC.
1920     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1921    
1922    checkpoint27
1923     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1924       formulation works properly with variable resolution.
1925     o restructured the calling tree between the_model_main() and dynamics()
1926     o split initialise() into initialise_fixed() and initialise_varia()
1927     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1928       in new routine ini_psurf()
1929    
1930    checkpoint26
1931     o moved some #ifdef in optional routines to encompass everything
1932       except the argument declarations. This was using up some memory.
1933     o fixed macros like _ADT to work with both versions of Linux cpp
1934     o cleaned up some unused and uninitialized variables
1935       (helps when debugging with strict compile options)
1936     o split up CPP_EEOPTIONS.h into options and macros
1937       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1938     o patch for 2 processor JAM mode
1939    
1940    checkpoint25
1941     o updates for OBCs and NH
1942     o dramatically reduced memory usage
1943     o added "JAM" routines for use on Artic network
1944     o parameterization of convection by implicit vertical diffusion
1945     o added a diagnostic of convective index
1946     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1947       (this is was partly for OBCs and NH but also in anticipation of
1948        an explicit free-surface option)
1949     o initial state input files for U and V
1950    
1951    checkpoint24
1952     o Removed some spurious "REAL"s
1953     o Updated KPP to latest version from JPL
1954     o Added a COS(latitude) in horizontal viscosity
1955    
1956    checkpoint23
1957     o Added del^4 diffusion for salt and temperature
1958     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1959    
1960    checkpoint22
1961     o Made many small changes: implicit none, format(i5), etc...
1962     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1963    
1964    checkpoint21
1965     o Introduced new I/O package that supports direct-access records (mdsio.F)
1966     o Split-up mid-level I/O routines
1967     o Updated input data for experiments 0,1,2,4 and 5
1968     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1969    
1970    checkpoint20
1971     o Tidied up open-boundaries some more
1972     o Added non-hydrostatic code
1973     o Fixed some input data
1974     o Modified MPI start-up to work in "coupled" context.
1975    
1976    checkpoint19
1977     o Tidied up directory structure for verification experiments.
1978     o Added new code for open boundaries.
1979     o Corrected advective terms near boundaries.
1980     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1981     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1982     o Split default parameters out of ini_parms.F into set_defaults.F.
1983    
1984    checkpoint18
1985     o Further changes for optional code generation with
1986       CPP - ugh!
1987    
1988    checkpoint17
1989     o Beginning to incorporating modularity
1990       for supporting atmos. and ocean configs.
1991     o Small changes for TAMC complinace
1992     o New ultra simple test case. Barotropic box
1993       configuration "exp0".
1994    
1995    checkpoint16
1996     o Minor changes to exchange routines to support
1997       accumulation in reverse mode. Adjoint of an
1998       assignment is an addition.
1999     o Changes to support compilation by TAMC (LR(1)
2000       syntax) and by g77 under Linux ( 72 character
2001       limit ).
2002    
2003    checkpoint15
2004     Rewrote exchange routines to allow
2005     o General tile <-> tile connectivity.
2006     o TAMC reverse mode flag ( is this really needed? )
2007     o Variable width overlap and exchange region widths.
2008     o Hooks for sharing data via DMA, Arctic, Memory Channel,
2009       shmput/shmget, VIA, SYSV shmem and every other cool
2010       communication method.
2011    
2012    checkpoint14
2013     Consistent isomorphism chages made. These allow dynamical core
2014     to support both pressure and meters as a vertical coordinate.
2015    
2016    checkpoint13
2017     Release which corrects global_max problem and a couple
2018     of KGM time-averaging diagnostic errors. Also contains
2019     a double-gyre experiment setup as well as the baseline
2020     4 degree global template. The double gyre template is
2021     organised to allow it to be applied automatically to
2022     the baseline configuration.
2023    
2024    branch-point-rdot
2025     A few tidy-ups have been made bt the real point of this
2026     check-point (excuse the pun) is to allow a branch to be
2027     made for the purposes of adding the rDot alterations.
2028     I don't want to commit the rDot to the main-trunk until
2029     we've actually tested it...
2030    
2031    checkpoint12
2032     Tidy up and added generic genmake script (formerly
2033     configure script).
2034     Released to testers.
2035    
2036    checkpoint11
2037     Re-arranged initialise() and introduced ini_vertical_grid()
2038     and ini_masks_etc().
2039    
2040    checkpoint10
2041     Introduced the configure script.
2042     Separated out the diags package.
2043     Added template for writing time-averages of tile/intermediate quantities.
2044     Updated SIZE.h in exp2 and made the data big-endian.
2045    
2046    checkpoint9
2047     MPI fix. Filename changes (meta/data). salbin*y stuff.
2048     General tidy-up.
2049     SST.bin SSS.bin added to verification/exp2
2050    
2051    checkpoint8
2052     Inludes time-dependant forcing and time-averaging.
2053     Works at 4x4 and 2.8125x2.8125 global
2054    
2055    checkpoint7-4degree-ref
2056     Branch from checkpoint7. Released for application to
2057     global modeling and general modeling - process studies, regional
2058     model etc..
2059     Configured for verification/exp2 - 4 degree global, two process.
2060    
2061  checkpoint7  checkpoint7
2062   Created by cnh   Created by cnh
2063   Simple 4 degree global simulation   Simple 4 degree global simulation

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