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revision 1.70 by jmc, Sat Apr 6 01:36:25 2002 UTC revision 1.370 by edhill, Mon Oct 18 16:04:19 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 remove all the *_ioinc flags and replace with the single global
7      outputTypesInclusive flag
8    o allow to set a vertical profile of vertical diffusivity for T & S
9    
10    checkpoint55g_post
11    o Renaming carbon AD experiments to comply with testreport conventions
12    o Updating adjoint of Held-Suarez hs94.1x64x5
13    o Fixing directives for non-ECCO forward_step, after ECCO directives
14      have been fixed to avoid recomp. of do_oceanic_phys
15      Works well for global_ocean.90x40x15,
16      but recomp. issue remains for carbon
17    o Updating adjoint output for natl_box_adjoint after
18      pkg/ecco has been modified (see taga c55d_post)
19    
20    checkpoint55f_post
21    o rename to timeave_init_fixed
22    
23    checkpoint55e_post
24    o some delicate re-shuffle of store directives to avoid one
25      extra call of do_oceanic_physics
26      affects ecco_the_main_loop.F, do_oceanic_physics.F
27      checkpoint_lev1_directives.h
28    o NB: this may break global_ocean adjoint temporarily,
29      but it is clear how to fix it. Will do later, need this now.
30    
31    checkpoint55d_post
32    o ECCO specific cost function terms (up-to-date with 1x1 runs)
33    o ecco_cost_weights is modified to 1x1 runs
34    o modifs to allow observations to be read in as
35      single file or yearly files
36    o enable to read exf forcing fields as either
37      single file or yearly files (flag useExfYearlyFields)
38    checkpoint55d_pre
39    
40    o switch between 2-level and 3-level checkpointing
41    o add ability of MNC to write local and "partial" (eg. 2D slices where
42      the full 3D field is never actually stored) arrays to NetCDF files
43      with the correct (that is, the complete multi-dimensional) set of
44      array indicies
45      - used in mom_vecinv() to write the diagFreq output
46      - tested (demonstrated) in verification/aim.5l_cs
47    o further mnc-ification
48      - add verification/lab_sea to the list with mnc setups
49      - fix undefined mnc v-names in cd_code
50      - add kpp to mnc output (both snapshot and timeave)
51    o non-hydrostatic code
52      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
53        in calc_gw.F
54      - defaults to viscAh
55      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
56        friction or Leith) in non-hydrostatic mode, as long as there is
57        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
58    o pkg/cost
59      extend simple cost functions to treat time mean quantities
60      (T,U,V) via cost_accumulate_state from cost_tile
61    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
62        be 2 times larger than the minimum size the advection scheme requires.
63        now get a perfect conservation of salt in advect_cs test-exp (updated)
64    o GGL90 (Gaspar's TKE mixed layer)
65      - add horizontal diffusion of TKE, requires exchanges in
66        do_fields_blocking_exchanges, horizontal diffusivity is zero by
67        default. In OPA there is no horizontal diffusion of TKE but the
68        mixing coefficients are computed from a horizontal average of TKE of
69        6 points or so. I think that diffusion has a little more physical
70        justification.
71      - clean up ggl90_calc in the hope of reducing memory usage (this hope
72        was in vain)
73      - mask tke-variable in ggl90_init
74    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
75    o fix biharmonic diffusion on CS-grid.
76    o more obcs stuff
77      - added obcs_external_fields_load as an alternative to the EXF-pkg option
78        for reading boundary values. This routine is called from
79        obcs_prescribe_read
80      - updated obcs_check
81      - changed sponge layer relaxation parameter units for days to seconds
82      - turned off sponge layer by default
83      - changed argument list of OBCS_CALC to myTime+deltaTclock
84      - fixed about 35 bugs in obcs_external_fields_load
85    
86    checkpoint55c_post
87    o obcs stuff
88      - new runtime flags useOBCSprescribe, useOBCSbalance
89      - re-arranged obcs_calc
90      - moved exf_getobcs to obcs_prescibe_read
91        obcs_prescibe_read is called after ORLANSKI stuff
92        and independent of it (executable can contain all).
93      - updated obcs_check
94      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
95        These may be necessary only if tangential velocities are
96        prescribed at OB, not sure, needs testing.
97    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
98      which simplifies the calls and passes the ifc check-bounds test
99    
100    checkpoint55b_post
101    o add a 2D scalar, Z location, exchange_2 routine.
102    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
103      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
104      affects advect_cs results (for the wrong reason): update output.txt
105    o use a more standard discretization for biharmonic viscosity ;
106     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
107      affects results of dome set-up: update output.txt
108    o fix gad_advection.F (CubedSphere part), back to version 1.23
109    o fix bug in mom_vi_del2uv.F (CubedSphere part).
110    
111    checkpoint55a_post
112    o merged code to
113      * prescribe/read time-dependent open boundaries
114        (works in conjunction with exf, cal)
115      * sponge layer code for open boundaries
116      * each boundary N/S/E/W now has its own CPP option
117        (healthy for the adjoint)
118    
119    checkpoint55
120    o up-to-date adjoint of previous breaks
121      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
122      - global_ocean_ebm: adjoint still needs fix (TLM ok)
123      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
124      - carbon: * remove tr1-related adjoint verification
125                * add ptracer as control variable
126    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
127      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
128    
129    checkpoint54f_post
130    o in verification/carbin/ remove experiment related to
131      ALLOW_PASSIVE_TRACER (array tr1 etc)
132      code_ad/ input_ad/ results_ad
133    
134    o add two new packages
135      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
136        + subject to optimization (memory)
137      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
138        + subject to reordering (many GOTOs in the original code)
139        + so far opps is called for every (i,j) point, and then operates in
140          the vertical; one may want to reorder the scheme in order operate in
141          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
142          fields)
143    o overhaul of IO so that we now have flags for MDSIO and/or MNC
144      - all verification tests compile and run with linux_ia32_g77
145      - defaults are compatible with current input files--nothing
146        should change if you were not previously using MNC
147      - MNC output has been added in numerous places (eg. timeave)
148        but there are still a few writes not yet do-able with MNC
149        (this is in progress)
150      - flags now allow for either/or/both use of MDSIO and MNC and
151        documentation will soon follow
152      - numerous small formatting cleanups for ProTeX
153    o add version info (via BUILD_INFO.h) to MNC and stdout
154    
155    checkpoint54e_post
156    o add two new packages
157      - pp81 (Packanowski and Philander, 1981), Richardson number and
158        stratification dependent mixing
159      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
160      - these scheme operate in a similar manner as KPP (without ghat, of
161        course), however there is only one diffusivity that is used for both
162        temperature and salinity (and passive tracers)ç
163    o add offline package
164    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
165      provided by Stephanie Dutkiewicz
166    o genmake2: add ability to search for C compilers and cleanup test output
167      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
168    
169    checkpoint54d_post
170    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
171    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
172      leading to additional shift by 5 days each year of integration
173       (i.e. leading to considerable offset over the years)
174    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
175    o start with no AB and no initial filtering (staggerTimeStep):
176      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
177    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
178      (external loading & cpl import/export stay in forward_step.F)
179    o update coupling interface to work with new staggerTimeStep
180    o change MDSIO ptracers_pickup.
181    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
182    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
183    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
184    
185    checkpoint54c_post
186    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
187      this affects (truncation error) output.txt of test-exp:
188       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
189    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
190    o change Qnet to always be the net heat flux, (+upward).
191      affects (truncation error) output of natl_box exp.: updated
192    o define the max number of passive tracers in PTRACERS_SIZE.h
193    o start to test mnc routinely in exp0
194    o add sea-ice loading (sIceLoad) as a new forcing field.
195    
196    checkpoint54b_post
197    o add testreport "-j JOBS" option for parallel builds (tested and pretty
198       impressive on Altix and Opteron systems)
199    o diagnostics can now write NetCDF files through the mnc package
200    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
201    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
202    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
203      affects (truncation error) output of lab_sea & natl_box exp.: updated
204    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
205    
206    checkpoint54a_post
207    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
208    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
209    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
210    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
211      + internal_wave (shift in writing cg2d_ini_res)
212    checkpoint54a_pre
213    
214    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
215      - modified verification/lab_sea and natl_box_adjoint accordingly
216    
217    checkpoint54
218    checkpoint53g_post
219    o prepare splitting of thermodynamics: store convect.counter in common block
220    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
221      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
222    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
223    o new parameter "nShapS": allow to treat differently S from T (nShapT)
224    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
225    o restore adjointability
226    
227    checkpoint53f_post
228    o modifications that affect AIM experiment results (update output.txt):
229      - no advection of S at top interface Nr (pkg/generic_advdiff)
230      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
231    o AIM pkg:
232      - include stability function into surf.Flux derivative relative to Tsurf
233      - calculate clear-sky radiation & surface temp. change (for diagnostics)
234    
235    checkpoint53e_post
236    o merged cylindrical coord configuration
237    o added rotating_tank experiment
238    checkpoint53e_pre
239    
240    checkpoint53d_post
241    o faulks upgraded: re-generate output.txt that have changed:
242       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
243    o Added Bryan and Lewis, 1979, vertical diffusivity profile
244    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
245    o added Sadourny discretization of Coriolis
246      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
247      - re-enabled use of omega3 (useAbsVorticity)
248    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
249      vector-invariant equations
250      - note: does *NOT* yet use same variable visc. for no-slip BC's.
251    o recoded the lateral boundary conditions for non-hydrostatic w, this time
252      hopefully without new bugs
253      - still to do: biharmonic friction for non-hydrostatic w
254    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
255    o regenerated output for global_ocean_ebm (using -ieee)
256    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
257      of mom_common/
258      - simple re-arrangement of instructions within computing loop
259    checkpoint53d_pre
260    
261    checkpoint53c_post
262    o new version of coupler for AIM+thSIce and Ocean models
263     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
264     - land: change Evaporation of snow
265     - aim with thSIce: fix bug in snow-precip.
266    o changes to calc_gw.F
267     - bug fix for w^2 term near the bottom boundary
268     - (hopefully) improve the lateral slip boundary condtions for use with
269        partial/looped cells
270      - because the bug fix changes two verification experiments anyway (exp5
271        and plume on slope), change the lateral boundary condition from half slip
272        to the value of no_slip_sides
273    o ebm package wasnt quite up to the parallel task. Fixed that.
274    o Adjoint of EBM package + verification
275      * TLM OK
276      * ADM not sufficient accuracy yet (needs further testing)
277    
278    checkpoint53b_post
279    o Commiting new energy balance model to repository
280      * package is pkg/ebm
281      * verif. is verification/global_ocean_ebm
282      * references are in ebm_driver.F
283    C      * X. Wang, P. Stone and J. Marotzke, 1999:
284    C        Global thermohaline circulation. Part I:
285    C        Sensitivity to atmospheric moisture transport.
286    C        J. Climate 12(1), 71-82
287    C      * X. Wang, P. Stone and J. Marotzke, 1999:
288    C        Global thermohaline circulation. Part II:
289    C        Sensitivity with interactive transport.
290    C        J. Climate 12(1), 83-91
291    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
292    C        Destabilization of the thermohaline circulation
293    C        by atmospheric eddy transports.
294    C        J. Climate 7(12), 1870-1882
295    o Will need long integration testing.
296    checkpoint53b_pre
297    
298    o created pkg/mom_common in preparation for variable viscosity code
299    o renamed and split ini_mnc_io
300    o pkg/land: only liquid water can diffuse or run-off
301    o AIM using land: soil wetness availability account for snow
302    o added printMapIncludesZeros to EEPARMS namelist
303    
304    checkpoint53a_post
305    o restore TAMC compatiility for exf_constants.h
306      (no usage of _d in .h)
307    o Additional storing in KPP in an attempt to fix
308      TAMC problem with adjoint of KPP code.
309      (no success...)
310      Identical code works fine with TAF.
311    o Fixed verification/natl_box_adjoint experiments.
312      Initial conditions for Experiments 4 and 5 are now
313      set to "SEAICE_initialHEFF=0", which is more reasonable,
314      and hence gives results closer to that of Experiment 2.
315      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
316    
317    checkpoint53
318    o stable checkpoint with up to date adjoint
319      TLM tests only run for 1st grdchk at the moment. Its unclear if
320      this is a code problem or a problem with resetting code for g_
321      variables that is being autogenerated wrong.
322      Otherwise:
323       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
324       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
325         are both still in chaos following their security messes.
326    
327    checkpoint52n_post
328    o various build (mostly genmake2) changes including:
329      - ability to build/run more easily within Cygwin and MacOS X
330      - more complicated Makefiles with a stronger dependence on Gnu Make
331    o pkg/seaice modifications
332      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
333        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
334        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
335      - changed proxy for geostrophic velocity and updated
336        verification/lab_sea/results/* accordingly
337      - removed ADI dynamic solver from pkg/seaice
338      - replaced all occurrences of 1/CSTICE or 1/CSUICE
339        they caused a segmentation fault under certain circumstances
340      - removed unused field WATR
341    o bug fix in exf-package:
342      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
343         now reflect that.
344    o small fixes in the cal-package:
345      - set reference date to first of January for the 'model'-calendar
346      - failing of cal_CheckDate in cal_FullDate now actually results in a
347        warning
348    o small modifications in exf-package to increase flexibility:
349      - change climtempfreeze from a constant to a runtime parameter that
350        is specified in data.exf_clim (default = -1.9)
351      - introduce runtime parameter windstressmax (default = 2.0) that is
352        specified in data.exf
353    o fix in pkg/thsice:
354      - update Evap (Tsf changes) to be consistent with Latent heat flux
355      - maintain snow precipitation unchanged (even if Tsf >=0).
356     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
357    
358    checkpoint52m_post
359    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
360      this does not change any of the results, because myIter=0 in swfrac always
361      lead to jwtype=2 (the default anyway), but the call makes little sense
362      as a default
363    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
364    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
365      atmospheric model (AIM) to use it ; add a "slab ocean" component.
366    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
367    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
368    o extending useSingleCpuIO option to work with new exch2 I/O format
369      - old-style, missing-tile I/O is still accessible by defining CPP
370        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
371    o monitor package can write to NetCDF files and/or STDOUT
372    o fix re-definition bug in MNC_GRID_INIT_ALL()
373    o doc/api_reference added
374      - a framework for building an API Reference Manual using all
375        the "protex" comments embedded in the code
376      - see pkg/generic_advdiff, pkg/mnc for examples
377    o MNC:
378      - make myThid the last argument for all subroutines
379      - new default for the grid files: NO halos
380      - add useMNC and other run-time flags
381      - separate per-file-group handling of the unlimited dimension
382      - early initialization of MNC w/ flags read at the eeboot stage
383        and lookup tables set in initialize_fixed
384      - write all MNC output to a freshly-created directory
385    o thermodynamics sea-ice (thsice) is now tested with testreport.
386    o test exp. advect_cs: use the standard cs32 grid ; update output.
387    o Added functionality to grdchk:
388      pick global i,j,k position (or nearest wet) where to perform check.
389    
390    checkpoint52l_post
391    o new land formulation:
392      a) use ground enthalpy as prognostic variable to ensure exact
393         energy conservation.
394      b) account for water temperature and for latent heat of freezing
395         in all processes (rain, run-off, ground storage)
396      c) compute surface and ground temperature implicitly.
397    o aim_v23 modification for new land model:
398      a) Treat separately land / ocean / sea-ice surface fluxes
399         to allow implicit computation of land & sea-ice surface temp.
400      b) add snow precipitation.
401    checkpoint52l_pre
402    
403    o fix problem (when 1 tile is empty) in min/max monitor.
404    o fix bug in timeAve (u,vZetatave in common block)
405    o no restoring terms under ice for pkg/seaice
406    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
407    o bug fix for pkg/seaice pickups
408    o change MNC call locations and add coordinate attributes
409    o mask vorticity at the corner ; affects global_ocean.cs output
410    o fix ini_curvilinear_grid ; test CS experiments with mpi
411    o aim.5l_cs: modify sea-ice fraction input file ; update output
412    o exf: Adding simple range check routine for exf fields after read
413    
414    checkpoint52k_post
415    o removed top-level directory "diags"
416      - we migrated these functions to pkg/timeave a long time ago
417    o fixed bug introduced in pkg/monitor
418    o accuracy ctrlprec = 32 insuffient for gradient checks using
419      averaged fields (I/O via cost_averages)
420      -> use ctrl.h in active_file*.F to control I/O precision.
421    o paramter list of CALL ADTHE_MAIN_LOOP
422    o added initial do_the_model_io to ecco
423    o set all ...Freq to zero after cost_final
424      taveFreq, dumpFreq, pChkptFreq
425    o MAIN and ECCO differentiability restored
426    
427    checkpoint52j_post
428    o fix nchklev in tamc.h for global_ocean...
429    o Bringing flow and store directives up-to-date
430    o Really weird thing!
431      call do_the_model_io from the_main_loop with parameters
432      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
433      TAF places a faulty re-call of initialise_varia
434      after cost_final call which should not be there!
435    checkpoint52j_pre
436    
437    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
438      error messages
439    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
440    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
441      debug output
442    o modfied mdsio_writefield.F to handle non-global files under exch2
443    o update AIM Cubed-Sphere exp (aim.5l_cs):
444      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
445    o update AIM Equatorial Channel exp:
446      use standard aim_v23 pkg and change the SST fields to be more realistic.
447    o globalFile now works with exch2
448    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
449      mon_vort3.F to make exch2 friendly with >1 tile per cube face
450    o limit timeave output for hi-res integrations
451    
452    checkpoint52i_post
453    o removed CPP_EEOPTIONS.h from verification/*/code
454    o updated the tiling for global_ocean_pressure
455    checkpoint52i_pre
456    
457    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
458      the old pkg/aim).
459    
460    checkpoint52h_pre
461    o shortened offending lines in exch2_send_rx?.template
462    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
463    o genmake2: add build & execute test for NetCDF code
464    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
465      old grid files, moved CPP_EEMACROS.h to pkg/exch2
466    o added useSingleCPUIO flag to monitor.F and mon_out.F
467    o added temporary hack for sea-ice dynamics on the cube:
468      metric terms are ignored and it is assumed that
469      there is no sea-ice on cube faces 1, 2, 4, and 5.
470    
471    checkpoint52f_post
472    o added exch2 cube routines to pkg/exch2
473    o modified hs94.cs-32x32x5 to use it
474    o added new grid files to hs94.cs-32x32x5
475    checkpoint52f_pre
476    
477    checkpoint52e_post
478    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
479      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
480    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
481      to work with implicit vertical advection and AB ;
482    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
483    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
484     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
485    checkpoint52e_pre
486    
487    o fix bug in impldiff when Nr=1 or Nr=2.
488    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
489    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
490    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
491      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
492    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
493    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
494    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
495    
496    checkpoint52d_post
497    o re-tiled many expts to allow comparison in multi-processor mode
498      - updated output accordingly
499      - changed hs94.128x64x5 to use intial T from file rather than use the
500        random number generator
501    o add infrastructure in model routines for fizhi and gridalt packages
502    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
503    o changes to permit hi-res, cubed-sphere, configuration
504      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
505      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
506      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
507        of surface winds for the cube
508      (A verification experiment, based on global_ocean.cs32x15, but with
509       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
510       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
511       complete with example surface forcing files and matlab scripts to look
512       at the output and compare it with that of global_ocean.cs32x15.)
513    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
514       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
515       to conform to the common rule.
516    o check-in the first version of the coupler + interfaces for multi-components
517       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
518       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
519       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
520       - ocean and atmos. share the same horizontal grid (no interpolation).
521       - exchanges between component and coupler is done in forward_step
522    o new verification experiment, cpl_aim+ocn:
523       coupled ocean - AIM atmosphere on cs32 grid.
524    
525    checkpoint52d_pre
526    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
527    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
528    
529    checkpoint52c_post
530    o Fixing OPTIONS files for use of exf:
531      - ALLOW_ECCO not needed
532      - ECCO_CPPOPTIONS.h should not be included from
533        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
534        as has been the case in the past
535      - All cal/exf related options are currently set in
536        single header file. Should remain so until we
537        agree on a consistent new policy.
538    o Removed all CPP options for cal package.
539      cal has no more CPP options.
540    o modified STOREs in GAD_ADVECTION
541    o corrected key comp. for passkey
542    
543    checkpoint52b_post
544    o new version: "thsice" of thermodynamic sea-ice pkg:
545     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
546     - modify fluxes but do not change theta directly;
547     - light cleaning of bulk_force pkg (still needed with thsice).
548     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
549       + output_thsice.txt to test thsice & bulk_force pkgs.
550    o put back grid & coriolis monitor output.
551    checkpoint52b_pre
552    
553    o call "do_the_model_io" at the beginning (=> dump initial state)
554    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
555    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
556      (need info on NUMBER_OF_PTRACERS)
557    o missing PTRACERS headers in some routines
558    o default tamc.h in pkg/autodiff supposed to crash
559      to ensure proper customization
560    
561    checkpoint52a_post
562    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
563      - moved surfaceTendencyTice from pkg/seaice to main code
564      - subroutine FREEZE_SURFACE now limits only surface temperature
565        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
566        => new output.txt for global_ocean.cs32x15 & global_with_exf
567      - keep the old version of FREEZE for backward compatibility;
568        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
569      - corresponding modifs for TAF directives
570    o added surface flux output variables to TIMEAVE_STATVARS
571    o time-averaged output for pkg/ptracers
572    o fix problem with ECCO-related divided adjoint
573      snapshot file was missing some ad-variables,
574      but no warning issued by TAF
575    
576    checkpoint52a_pre
577    o some bug fixes for #undef REAL4_IS_SLOW
578    
579    checkpoint52 = ecco_c52_e35
580    o after testing adjoints of checkpoint51u_post
581    
582    checkpoint51u_post
583    o this is the post-merge tag of the ecco-branch
584      (needs another clean checkout and re-testing)
585    o various natl_box_adjoint configs and results
586      but no input fields
587    o obcs adjoint not yet merged!
588    o adding ECCO global 1x1 and 2x2 degree configs
589    o updated/extended some store directives for seaice
590    o pkg/ecco now containes ecco-specific part of cost function
591    o top level routines the_main_loop, forward_step
592      supersede those in model/src/
593      previous input data.cost now in data.ecco
594      (new namelist ecco_cost_nml)
595    o in ctrl/ cleaned some cross-dependencies and updated CPP options
596    
597    checkpoint51t_post
598    o this is the pre-merge tag of the ecco-branch
599    
600    checkpoint51s_post
601    o cleanup: removed various obsolete #define-s
602    o pkg/grdchk
603      - renamed 'ph-grd 3' to 'grad-res'
604      - merged from ecco-branch
605        (remaining bug fixes for obcs gradient checks)
606      - additional high-precision output for testreport
607        (grep for 'precision_grdchk_result')
608    
609    checkpoint51r_post
610    o cleaned up or removed CPP_OPTIONS.h files
611    o updated results for some of the tests to reflect the new
612      optfiles (-ieee: -O0 instead of -O3)
613    
614    checkpoint51q_post
615    o cd_code:
616      - moved cd_scheme.F -> cd_code_scheme.F
617      - separate read_checkpoint from cd_code_ini_vars.F
618      - separated cd_code part from write_checkpoint
619      - updated AD_SOURCE, generated .flow
620      - added CD_CODE_VARS.h to the_main_loop
621      - Moving cd_code specific store dir.s to pkg/cd_code
622    o ctrl package totally restructured
623      - pack/unpack now optional and decoupled from
624        xx_/adxx_ I/O
625      - ctrl_pack/unpack cleaned
626        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
627      - confined inclusion of AD_CONFIG.h to where necessary.
628    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
629    
630    checkpoint51p_post
631    o create initial cd_code package
632      - WARNING: the initialization of fields within packages
633        is broken because INI_FIELDS (where READ_CHECKPOINT is
634        called) is called *before* PACKAGES_INIT_VARIABLES.
635        This seems to be backwards since
636        1) its important to initially zero the entire field including
637           the "halo" region
638        2) zeroing needs to be done *before* reading pickup info
639           and the pickup call might or might not happen in any
640           particular run
641      - this needs an overhaul for R2
642    o cleanup verification/*/code/GMREDI_OPTIONS.h
643    o cleanup testreport
644    
645    checkpoint51o_post
646    o bringing AD-related verif's up to date with genmake2
647      - carbon/
648      - global_ocean.90x40x15/
649      - hs.94.1x64x5/
650      - (front_relax/ )
651    o (more) consistent directory structure for AD-related verif.'s
652    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
653    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
654    o bug fix in find_alpha.F for MDJWF:
655      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
656        change rho -> rho-rhoConst
657      - replace call find_rho to find_rhonum
658    o initialisation of rFlx extended to full array (required by TAF)
659      and shifted to thermodynamics
660    o removed PTRACERS.h in ptracers routine
661    o added surfacetendencyPtr to S/R parameter list pracers_forcing
662    o Correcting initialisations for fVerU, fVerV.
663    o helping TAF to recognize dependency on kUp for
664      fVerU, fVerV
665    o Replacing delZ by delR in pkg/ctrl/
666    checkpoint51o_pre
667    
668    o undid all of cp51 pending some cleanups and discussion
669    o added the [#include "AD_CONFIG.h"] statement to all files that need
670       it for adjoint/tl #defines
671     o re-worked the build logic in genmake2 to support AD_CONFIG.h
672     o removed tools/genmake since it no longer works
673    
674    checkpoint51n_post
675    o modifications to make FREEZE flux visible to pkg/kpp
676      - moved surfaceTendencyTice from pkg/seaice to main code
677      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
678      - subroutine FREEZE now limits only surface temperature
679        (this means new output.txt for global_ocean.90x40x15,
680         global_ocean.cs32x15, and global_with_exf)
681    o added surface flux output variables to TIMEAVE_STATVARS
682    
683    checkpoint51n_pre
684    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
685    o added [#include "AD_CONFIG.h"] to all files that use the following
686      defines:
687      - ALLOW_ADJOINT_RUN
688      - ALLOW_TANGENTLINEAR_RUN
689      - ALLOW_ECCO_OPTIMIZATION
690    
691    checkpoint51m_post
692    o incorporating changes to get TAMC/TAF working in genmake2
693      - added new TAMC/TAF targets to the Makefile
694      - various cleanups related to package handling
695      - these changes should have no impact on the forward model
696    
697    checkpoint51l_post
698    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
699     - faster algorithm for cal_addtime.F
700     - higher precision arithmetic, where needed
701     - pkg/exf *startdate variables changed from calendar date to
702       model integration time
703    
704    checkpoint51l_pre
705    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
706    o enable to apply restoring on S & T only in a latitude band.
707    o update output (external_forcing_surf modif. change truncation errors)
708       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
709    
710    checkpoint51k_post
711    o change default to: useNHMTerms=.FALSE.
712     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
713       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
714     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
715        exp1, ideal_2D_oce
716     - change data file of oceanic exp (leave the results unchanged for now)
717       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
718    o set gravitySign automatically according to the vertical coordinate used
719      (and change sign: back to "logical" value: +1 when R increases downward)
720    o added an include barrier to the default CPP_OPTIONS.h and
721      removed the #include "PACKAGES_CONFIG.h" from it
722    o fix a bug in mom_fluxform (from chk51j_post)
723    
724    checkpoint51j_post
725    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
726    o adjusted some flow directives (dynamics, thermodynamics)
727    o added cubed-sphere case to test cost function
728    o heckpoint_lev?_directives.h now include
729      pkg-specific directives, whenever those are enabled.
730    o Moving pkg-specific flow directives to corresponding pkg
731      Moving pkg-specific differentiation list to corresponding pkg
732      Moving pkg-specific checkpoint-lev storing to corresponding pkg
733      ---> conventions are
734           - pkg_ad.flow
735           - pkg_ad_diff.list
736           - pkg_ad_check_lev?_dir.h
737    
738    checkpoint51i_post
739    o merge of the branch-genmake2
740      - knowingly breaks the older genmake
741      - automatic generation of all ALLOW_${PKG_NAME} defines
742      - new testreport supersedes older testscript
743    o large number of package inclusion and header cleanups
744    checkpoint51i_pre
745    
746    o new output for adjoin of global ocean vector invariant
747    o fix for checkpoint of thermodynamic seaice and bulk_force
748    o Steph gchem various cleanups
749    
750    checkpoint 51h_pre
751    o fixed some single quotes
752    o modify gchem pkg to be more versatile
753    o modifications to clean up dic pkg
754    o add pkg/cfc
755    
756    checkpoint51g_post
757    o provide links for ARPACK and ADM*TLM
758    o start removing verification/vero/
759    o update AD-related stuff
760      (in particular some IF-statements in model/src/ routines)
761    o adding to verification/global_ocean.90x40x15/ adjoint of
762      vector invariant setup
763    
764    checkpoint51f_post
765    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
766    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
767      of tracer Green's fucntions for ocean inversion project.
768    
769    checkpoint51f_pre
770    o Added on-the-fly spatial interpolation capability
771        "USE_EXF_INTERPOLATION" to pkg/exf.
772      - This is a temporary Cartesian-grid hack until
773        the super-duper ESMF coupler becomes available.
774      - See verification/global_with_exf/README for usage example.
775      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
776        flags and modified pkg/seaice accordingly.
777    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
778        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
779        non-local transport term.
780    
781    checkpoint51e_post
782    o pkg/mom_vecinv:
783      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
784      - add time-ave diagnostic of vorticity advection.
785    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
786    o atmospheric geopotential: - include water vapor effect;
787                                - use p^kappa in p* scaling.
788    o land pkg: read initial state from files.
789    o AIM : add stratospheric drag in the upper level
790    
791    checkpoint51d_post
792    o change function ILNBLNK (=> last non-blank char.) to return zero
793      (instead of the string length) when the string. char is empty
794    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
795    o modif's to restore TAMC compatibility
796      - avoid "_d" constructs in PARAMETER declarations
797      - avoid interrupting lines by comment lines
798    o Use cluster local disks for purely local I/O
799      vs. globally visible disks needed for ctrl stuff
800      (merged from ecco-branch)
801      - new active_file_loc... and mdsio_..._loc routines
802      - affected packages: autodiff, ctrl, grdchk, mdsio
803    
804    checkpoint51c_post
805    o introducing integer flag debugLevel
806      - debLevZero: suppress all output
807      - debLevA: standard
808      - debLevB: equivalent to current debugMode=.TRUE.
809    o introducing pathname variable mdsioLocalDir for mdsio
810      that can be specified at runtime
811      (relevant for cluster I/O to local disk)
812    `
813    >>>checkpoint51b_post
814    adjoint of ptracers
815    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
816    o extended state in checkpoint_lev?, etc.
817    o alternative ctrl/cost with tr1 or ptracer
818    o new comlev1_bibj_ptracers
819    o new ptracers.flow
820    o made ptracers_forcing same as external_forcing_s
821    o added verification for adjoint with ptracers
822      - adm. grdchk fail so far
823      - tlm. grdchk OK
824      - checked tapelev/comlev recomputations: OK
825    <<<checkpoint51b_pre
826    
827    checkpoint51a_post
828    o added code for biogeochemistry package
829      - new pkgs: dic, gchem
830      - new subroutine in ptracers
831    o modify code for biogeo packages
832      - in model/src and pkg/ptracers
833    
834    checkpoint51
835    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
836      - autodiff, ctrl, exf, grdchk, seaice
837      kept separate packages
838      - cost, ecco, obcs
839    o updating verification/internal_wave, verification/lab_sea
840      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
841    
842    checkpoint50i_post
843    o Preparing next differentiable checkpoint and sync
844      of MAIN vs. ecco-branch
845      - 1st step: this one is differentiable
846      - 2nd step: next(! not this) checkpoint will have updated packages
847                  from ecco-branch)
848    
849    checkpoint50h_post
850    o new package "land": provide surface BC for AIM.
851    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
852    o AIM: use true log-P extrapolation for near surface temp (= as in
853        F.Molteni paper) ; update aim.5l_cs output.
854    o New variable in PARM03 for more flexible pickups
855    o somewhat cleaned package initialisation sequence for
856      ctrl/ cost/ ecco/ in packages_... routines
857    
858    checkpoint50g_post
859    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
860      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
861      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
862        made the default because of faster convergence than ADI
863    
864    checkpoint50f_post
865    o exf totally restructured
866      - replaced all exf_set_ routines by one generic exf_set_gen.F
867        and made sure it's still differentiable
868      - split exf_getffields.F into new exf_bulkformulae.F
869      - exf_inscal_/exf_outscal_ suffixes consistent with field names
870      - updated adjoint/makefile and relevant verif. accordingly
871    
872    checkpoint50f_pre
873     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
874          + change Evap over land. (update aim.5l_cs output)
875     o added missing .cvsignores and made uniform across expts
876     o changed configuration of tidal_basin_2d expt
877     o added pkg/debug functions for tracing code in fatal crashes
878     o tidied pkg/monitor to use MONITOR_OPTIONS.h
879     o new fn in pkg/monitor to stop model if solution grows too big
880     o removed lots of single quotes from comments
881    
882    checkpoint50e_post
883    o make KPP work with PTRACERS
884     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
885       nearly a copy of kpp_transport_s
886     - there is no analogue to SurfaceTendencyS, so I have to use
887       gPtr(of the surface layer) instead
888    o add a new platform SunFire+mpi (SunFire 15000) to genmake
889    checkpoint50e_pre
890    
891    checkpoint50d_post
892    o change kpp output from multiple-record state files to single-record state
893      files analogous to write_state.F
894    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
895      analogous to the cg2d-related output.
896    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
897      so that writing to internal file fn (with length 512) fails.
898    checkpoint50d_pre
899    
900    checkpoint50c_post
901    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
902    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
903    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
904    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
905    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
906    
907    checkpoint50c_pre
908    Merging from release1_p13:
909    o bug fix for pkg/seaice dynamic solver
910    o Added SEAICE_initialHEFF to pkg/seaice
911    
912    checkpoint50b_post
913    o store u*,v* in gU,V instead of in guNm1,gvNm1
914    o in order to put the momForcing out of the Adams-Bashforth:
915      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
916      to timestep.F
917    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
918    o re-generate output for highly sensitive test-exp:
919       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
920    
921    checkpoint50b_pre
922    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
923    o corrected CPP option mismatch in exf_Bulk... functions for case
924      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
925    
926    checkpoint50a_post
927    o Bug fix for merging between c50 and KPP.
928      ikey was passed from thermodynamics to kpp_calc via
929      common block rather than being recomputed in kpp_calc,
930      in contradiction with new key itdkey.
931      New key ikppkey created, and tamc.h headers updated.
932    
933    checkpoint50
934    - 2nd step of merge with ecco-branch:
935      merge changes in ecco-branch back into main trunk
936    - bug fix in find_alpha
937    - more storing in gmredi_calc_tensor.F, kpp_routines.F
938    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
939    - merged some sliced AD support routines
940    
941    checkpoint49
942    merged from ecco-branch:
943    o exf:
944      - Enable initialisation of forcing fields to constant
945        (runtime) values.
946      - in exf_getffields.F
947        Reduce i-/j-loop to interior domain, discarding overlaps.
948        That also fixes wrong TAF-key computations for key_1, key_2
949        with bulf formulae.
950      - exf_init.F modify #ifdef for exf_init_evap
951      - exf_getffieldrec.F, ctrl_getrec.F
952        The following INT-usages are not safe:
953          fldsecs  = int(fldsecs/fldperiod)*fldperiod
954          fldcount = int(fldsecs/fldperiod) + 1
955        and were modified.
956    o autodiff: checkpoint_lev...
957      - updated storing for bulk formulae (some arrays were missing)
958      - added state for seaice package
959      - synchronized with main branch
960    o DIVA:
961      Modif.s in
962      - the_main_loop.F
963      - the_model_main.F
964      and added cost_final_restore.F cost_final_store.F
965      o With these changes, it is possible to fully separate
966        the first forward run to compute the cost function (mdthe_main_loop)
967        and adjoint runs over individual DIVA intervals (adthe_main_loop)
968        into separate model executions.
969        This enables better tuning of DIVA to given queue sizes.
970      o Loss of cost function value in consecutive DIVA runs is
971        fixed by storing to 'costfinal' file.
972      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
973        beginning/end of adjoint integration is accounted for.
974      The current changes apply to TAF-1.4.26.
975      TAF has one remaining bug, requiring one manual change
976      (see MITgcm manual).
977    o cal: synchronized between MAIN and ecco-branch
978    
979    checkpoint48i_post
980    o Changes to restore differentiability of code w.r.t. previous tag
981      (mostly adding new routines to make list and replacing
982      pressure by totPhiHyd).
983    o Updated and merged grdchk package
984      - has both ADM and TLM checks
985      - works for single- and multi-proc.
986      - output cleaned
987      - worked successfully for parallel DIVA
988    o genmake:
989      - Adding -platform=SP4
990      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
991    o Modif. for DIVA:
992      ctrl_unpack should not be called in intermediate DIVA interval.
993      (similar thing would apply for active files such as
994      tbar, sbar, psbar, which should not be reinitialised;
995      only relevant for ecco-branch)
996    
997    checkpoint48h_post
998    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
999    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1000    o Added SEAICE_initialHEFF to pkg/seaice
1001    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1002    
1003    checkpoint48g_post
1004    --- EOS:
1005    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1006      store total Potential in totPhyHyd for diagnostics & EOS.
1007    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1008    --- Pressure/geopotential gradient:
1009    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1010    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1011      ( changes results of global_ocean_pressure )
1012    o NLFS + z-coord.: add eta*Rho' contribution.
1013    o accurate phiHyd when using interface-W at the middle between 2 centers
1014     ( changes results of ideal_2D_oce )
1015    o includes r* 2nd term in potential gradient.
1016    
1017    checkpoint48f_post
1018    Merging from release1_p12:
1019    o Modifications for using pkg/exf with pkg/seaice
1020      - improved description of the various forcing configurations
1021      - added basic radiation bulk formulae to pkg/exf
1022      - units/sign fix for evap computation in exf_getffields.F
1023      - updated verification/global_with_exf/results/output.txt
1024    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1025      (SBO) core products, including oceanic mass, center-of-mass,
1026      angular, and bottom pressure (see pkg/sbo/README.sbo).
1027    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1028      to avoid negative values in shallow regions.
1029      - updated verification/natl_box/results/output.txt
1030      - updated verification/lab_sea/results/output.txt
1031    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1032    o Added useSingleCpuIO option (see PARAMS.h).
1033    o Updated useSingleCpuIO option in mdsio_writefield.F to
1034      work with multi-field files, e.g., for single-file pickup.
1035    o pkg/seaice:
1036      - bug fix in growth.F: QNET for no shortwave case
1037      - added HeffFile for specifying initial sea-ice thickness
1038      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1039    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1040      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1041    o pkg/seaice:
1042      - adjoint-friendly modifications
1043      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1044    
1045    checkpoint48e_post
1046    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1047    o dynamics: change definition of computational domain & adapt mom_fluxform
1048      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1049    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1050        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1051        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1052        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1053        inverted_barometer solid-body.cs-32x32x1
1054      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1055    
1056    checkpoint48d_post
1057    o in preparation for r*:
1058     a) use pre-computed gradient of hydrostatic potential:
1059        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1060     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1061        => affects results of glob_oce_pressure (different truncation error)  
1062      update output.txt of ideal_2D_oce & global_ocean_pressure
1063    
1064    checkpoint48d_pre
1065    o in preparation for r*:
1066      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1067      pass the 2 comp. of the grad. as arguments to momentum S/R.
1068      but for the moment, only used if it does not change the results.
1069    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1070    
1071    checkpoint48c_post
1072    Modifications in treatment of initial flux forcing controls
1073    to avoid extra storing of flux fields.
1074    
1075    checkpoint48c_pre
1076    o Added tidal_basin_2d experiment (currently 1D!)
1077    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1078    
1079    checkpoint48b_post
1080    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1081     (modification to pressure gradient not yet implemented)
1082    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1083      (for U & V) that are used for vertical advection of momentum.
1084    
1085    checkpoint48a_post
1086    o In preparation for r*, use temp. array to compute vertical transport
1087       in flux-form momentum pkg. => change results of few test-exp.
1088      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1089                        lab_sea, natl_box & plume_on_slope
1090    
1091    checkpoint48
1092    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1093    
1094    checkpoint47j_post
1095    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1096    o moved adexch from forward_step to addummy_in_stepping
1097    o added exch in ctrl_map_...
1098    o aveFreq.=0. at end of cost_final to avoid overwrite in
1099      reverse checkpointing loop
1100    o Yet more changes in gmredi:
1101      * adgmredi_calc_tensor
1102        avoiding all recomputation of gmredi_slope_limit
1103      * adgmredi_x/y/rtransport
1104        added flag for excessive storing to avoid recomp. of
1105        u/v/rtans, dTdx/y/z
1106        -> this is not really necessary and very memory-consuming
1107      * adgmredi_slope_psi:
1108        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1109      * gmredi_slope_limit
1110        re-activated full calculation of taperfct for case 'ac02'
1111    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1112    
1113    checkpoint47i_post
1114    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1115    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1116      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1117    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1118    o gmredi: fix few bugs.
1119    
1120    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1121    This will be a good checkpoint to plug into the ecco-branch.
1122    o few modif.'s to get latest version adjointed
1123      (mainly kick out code in ini_linear_phisurf)
1124    o modif's to run adjoint with exactConserv
1125    o case GM_BOLUS_ADVEC should be cleaned
1126      S/R gmredi_slope_psi should be cleaned
1127    o verification/carbon now has exactConserv=.TRUE.
1128    
1129    checkpoint47g_post
1130    o time-average AIM output: becomes independent from statvars time-average
1131      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1132    o After TAF bug fix:
1133      Tested adjoint of gmredi package.
1134      Tests were done with checkpoint47 rather than with latest
1135      checkpoint47f_post since the latter is broken for the adjoint
1136      verification/carbon/ contains both ADM and TLM gradient checks.
1137    Here they are, before they get changed/lost/stolen.
1138    Mostly modif.'s to fix numerical sensitivities.
1139    Gradient checks OK for
1140    - GM_taper_scheme:
1141      * clipping
1142      * ac02
1143      * linear
1144      * glw91
1145      * dm95
1146      * ldd97
1147    - GMREDI_OPTIONS:
1148      * GM_VISBECK_VARIABLE_K
1149      * GM_NON_UNITY_DIAGONAL
1150      * GM_EXTRA_DIAGONAL
1151      * GM_BOLUS_ADVEC
1152    in conjunction with data.gmredi parameters to be checked in
1153    in a few minutes under verification/carbon/code/
1154    
1155    checkpoint47f_post
1156    Merging from release1_p10:
1157    o modifications for using pkg/exf with pkg/seaice
1158      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1159        and SEAICE_EXTERNAL_FLUXES
1160      - pkg/exf CPP options EXF_READ_EVAP and
1161        EXF_NO_BULK_COMPUTATIONS
1162      - usage examples are Experiments 8 and 9 in
1163        verification/lab_sea/README
1164      - verification/lab_sea default experiment now uses
1165        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1166    
1167    checkpoint47e_post
1168    o created a tag prior to creating a branch
1169    
1170    checkpoint47d_post
1171    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1172      at the bottom boundary had an erroneous half slip boundary condition
1173    o added bottom drag and no slip boundary condition capabilities to
1174      oceanic pressure coordinates code
1175    o added new verification experiment global_ocean_pressure, this experiment is
1176      also described in the tutorial section of the manual
1177    checkpoint47d_pre
1178    
1179    checkpoint47c_post
1180    o Added a verification experiment for a global cubed-sphere ocean run
1181      -  verification/global_ocean.cubed32x32x30
1182      -  uses pkg/therm_seaice and pkg/bulk_forcing
1183    
1184    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1185    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1186      when using P-coordinate; only implemented for atmospheric config.
1187    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1188      NOTES: requires option NONLIN_FRSURF to be "#define".
1189    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1190    
1191    checkpoint47b_post
1192    Merging from release1_p9:
1193    o pkg/seaice
1194      - removed GOTO's and added taf directives
1195      - double precision constants to reduce the g77 (Linux)
1196        to F77 (SGI) differences reported in release1_p8
1197    o tools/genmake
1198      - added SGI options
1199    o verification/testscript
1200      - updated to that of checkpoint47a_post
1201    o verification/global_ocean.90x40x15/input/eedata
1202      - modified for SGI f77 compatibility
1203    o verification/lab_sea
1204      - added description of sea-ice model
1205      - added missing matlab routines
1206      - added test of thermodynamics parallelization
1207    
1208    checkpoint47a_post
1209    o new pkg: aim_v23
1210     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1211       for now, keep the same surface forcing as before.
1212     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1213     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1214     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1215    o add diagnostic of surface correction term in monitor output
1216    
1217    o bulk_force and therm_seaice
1218    - Two packages:  bulk_force (Bulk forcing)
1219      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1220    - Earlier integration from Stephaine Dutkiewicz
1221      and Patrick Heimbach.
1222    - Two ifdef statements for compile time,
1223       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1224    
1225    checkpoint47
1226    differentiable version of checkpoint46n_post
1227    o bug fix in quasihydrostaticterms
1228    o * "clean" adjoint code (in terms of extensive recomputations)
1229        can now be obtained for all GMREDI options (i.e. for
1230        - GM_VISBECK_VARIABLE_K
1231        - GM_NON_UNITY_DIAGONAL
1232        - GM_EXTRA_DIAGONAL
1233        - GM_BOLUS_ADVEC )
1234      * However, wrong gradient check problem remains unsolved.
1235      * New CPP options have been introduced for different
1236        tapering schemes
1237    o external_fields_load now part of differentiation list
1238    o pressure needs multiple storing;
1239      would be nice to have store_pressure at beginning or
1240      end of forward_step, e.g. by having phiHyd global (5-dim.)
1241      (NB: pressure is needed for certain cases in find_rho,
1242      which is also invoked through convective_adjustment).
1243    o recomputations in find_rho for cases
1244     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1245    o #define ATMOSPHERIC_LOADING should be differentiable
1246    o ini_forcing shifted to begining of initialise_varia
1247    o Incorporating QNVS line search routines into MITgcm
1248      (this is separate code, and therefore not under pkg)
1249      lsopt/, optim/
1250    o Updated verification/carbon/
1251      - #define GM_VISBECK_VARIABLE_K
1252      - GM_taper_scheme    = 'ldd97'    
1253    
1254    checkpoint46n_post
1255    Merging from release1_p8:
1256    o verification/natl_box:
1257      updating new external_fields_load routine
1258    o New package: pkg/seaice
1259      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1260      The sea-ice code is based on Hibler (1979-1980).
1261      Two sea-ice dynamic solvers, ADI and LSR, are included.
1262      In addition to computing prognostic sea-ice variables and diagnosing
1263      the forcing/external data fields that drive the ocean model,
1264      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1265      The implied surface heat flux is then stored in variable
1266      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1267      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1268      non-local transport term.  Because this call precedes model
1269      thermodynamics, temperature under sea-ice may not be "exactly" at
1270      the freezing point by the time theta is dumped or time-averaged.
1271      N.B.: fairly large differences in accuracy occur across
1272            different platforms/compilers; comparison between
1273            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1274            generated output gives:
1275       T           S           U           V
1276      C D M    c        m  s        m  s        m  s        m  s
1277      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1278      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1279      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1280    
1281      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1282    o GAD:
1283      - generated new common blocks to account for call of
1284        same gad routines with differing traceridentities
1285        (needed to modify tracerIdentity indices in GAD.h)
1286      - generated separate common blocks for case useCubedSphereExchange
1287        (Department of Futurology)
1288      - parameter lists to gmredi_?transport: added tracerIdentity
1289      - added new key indices to tamc.h
1290    o external_fields_load:
1291      - added this routine to TAF list
1292      - needed to make some common blocks global and additional storing
1293        along the same lines as exf package (checkpoint_lev?_directives.h)
1294    o exf:
1295      updated external forcing package
1296      - bug fixes carried over from ecco-branch
1297        (missing OBCS_OPTIONS.h in two routines)
1298      - enable easy to use "no forcing".
1299      - added exf I/O for atmospheric loading
1300      - added exf I/O for runoff data
1301      - transfered scaling between exf <-> MITgcm to exf namelist
1302    o Adding new verification experiment global_with_exf.
1303      This verification experiment is almost identical to the
1304      global_ocean.90x40x15 experiment, except that it uses
1305      the exf (and cal) package instead of the
1306      external_fields_load routine (cf README file).
1307    
1308    checkpoint46m_post
1309    o modified testscript to return -- when there are no lines of "%MON" output
1310    o added new flag "quasiHydrostatic" for QH mode
1311      and new routine quasihydrostaticterms()
1312    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1313      New routine: mom_u_coriolis_nh()
1314    o fixed sign of non-hydrostatic metric terms in u and v equations.
1315      Depend on correct sign of gravitySign.
1316    o added work.pc* to .cvsignore in aim directories using ifc
1317    o introduced flag for controllin non-hydrostatic metric terms
1318    o removed gravitySign from PARM04
1319    o switched to g77/ifc from pgf77 in aim experiments
1320    
1321    checkpoint46l_post
1322    o made convective adjustment work with pressure coordinates:
1323     - changed the direction of k-loop in convective_adjustment.F for the
1324       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1325     - adjusted the reference pressure k-index in convective_adjustment.F
1326     - adjusted the convection condition in convect.F (in analogy to
1327       calc_ivdc.F)
1328     - convective_adjustment no longer computes anything on the halos
1329     - removed the warnings about negative salinity from find_rho.F and
1330       find_alpha.F; instead the new routine look_for_neg_salinity, called
1331       at the beginning of find_rho, find_alpha, and find_beta, does a
1332       check of the entire slice, if CPP-option
1333       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1334    checkpoint46l_pre
1335    
1336    checkpoint46k_post
1337    o fixed the verification/global_ocean.90x40x15 experiment:
1338     - new bathymetry (the world according to A., JMC, and M.)
1339     - new initial fields and forcing fields (*.bin files)
1340     - new POLY3.COEFFS (for the next release one should switch to a full
1341       equation of state: JMD95P or MDJWF)
1342     - fixed several errors and redundancies in the data file
1343     - experiment uses looped cells
1344     - added matlab directory with diagnostic scripts for plotting of output
1345    
1346    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1347     - read AIM physics parameters from a file (data.aimphys)
1348     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1349    
1350    checkpoint46j_post
1351    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1352    o move wVel computation at the end of the time step, in S/R integr_continuity
1353    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1354    o update timeave pkg for wVel diagnostic.
1355    checkpoint46j_pre
1356    
1357    checkpoint46i_post
1358    o Clean up AIM package (and keep the results unchanged):
1359      include CPP_OPTION and use IMPLICT NONE in all routines ;
1360      declare all the variables _RL ; use _d 0 for all numerical constants.
1361      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1362    
1363    checkpoint46h_post
1364    o cleaned up the use of rhoNil and rhoConst.
1365      - rhoNil should only appear in the LINEAR equation of state, everywhere
1366        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1367        and the dynamical equations are all divided by rhoConst
1368    o introduced new parameter rhoConstFresh, a reference density of fresh
1369      water, to remove the fresh water flux's dependence on rhoNil. The default
1370      value is 999.8 kg/m^3
1371    o cleanup up external_forcing.F and external_forcing_surf.F
1372      - can now be used by both OCEANIC and OCEANICP
1373    checkpoint46h_pre
1374    
1375     Added code to convert surface volume flux (fresh water) into
1376     a mass flux when using P coordinates in the ocean (OCEANICP).
1377     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1378    
1379    checkpoint46g_post
1380    o Include a new diagnostic variable phiHydLow for the ocean model
1381      - in z-coordinates, it is the bottom pressure anomaly
1382      - in p-coordinates, it is the sea surface elevation
1383      - in both cases, these variable have global drift, reflecting the mass
1384        drift in z-coordinates and the volume drift in p-coordinates
1385      - included time averaging for phiHydLow, be aware of the drift!
1386    o depth-dependent computation of Bo_surf for pressure coordinates
1387      in the ocean (buoyancyRelation='OCEANICP')
1388      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1389        Theta, Salinity, and Pressure in the parameter list. This routine is
1390        presently contained in find_rho.F. This routine does not give the
1391        correct density for 'POLY3', which would be a z-dependent reference
1392        density.
1393    o cleaned up find_rho
1394      - removed obsolete 'eqn' from the parameter list.
1395    o added two new verification experiments: gop and goz
1396      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1397    checkpoint46g_pre
1398    
1399    checkpoint46f_post
1400    o Enable tangent linear (forward mode) gradient checks:
1401      - extended active file handling to g_... files
1402      - added TANGENT_SIMULATION to theSimulationMode
1403      - extended grdchk package accordingly
1404    o added tangent linear setup in verification/carbon/code_ftl
1405    o added adjoint setup in verification/front_relax/code_ad
1406    
1407    checkpoint46e_post
1408    o Added new equation of state -> MDJWF
1409      - EOS of McDougall et al., 2002, JAOT, submitted
1410      - caveat: the equation of state is only valid for a smaller (more
1411        realistic?) range of values than JMD95P/Z and UNESCO
1412      - added masks to the calculation of pressure in store_pressure
1413      - added more check values for density in check_eos (ini_eos.F), some of
1414        the old check values are out of the range of the MDJWF-eos, so don't
1415        expect perfect matches for those
1416    checkpoint46e_pre
1417    
1418    checkpoint46d_post
1419    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1420      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1421      case of pressure coordinates. eosType='JMD95Z' in
1422      combination with buoyancyRelation='OCEANICP' now causes an error.
1423    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1424      in find_alpha/beta.
1425    checkpoint46d_pre
1426    
1427    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1428      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1429    
1430    checkpoint46c_post
1431    o Changes necessary for ocean in p-coordinates
1432     -  Added new buoyancy relation = 'OCEANICP'
1433     -  Added new parameters = gravitySign (this used to be contained inside
1434        the factor dRdZ which I added when we first switched to R coordinates).
1435     X GM/Redi is not compatible (yet)
1436     X bottom drag and no-slip need to be debugged.
1437    checkpoint46c_pre
1438    
1439    checkpoint46b_post
1440    o Added new equation of state -> JMD95Z and JMD95P
1441      - EOS of Jackett and McDougall, 1995, JAOT
1442      - moved all EOS parameters into EOS.h
1443      - new routines ini_eos.F, store_pressure.F
1444    o Added UNESCO EOS, but not recommended because it requires
1445      in-situ temperature (see JMD95)
1446    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1447      unesco.f to be used with POLY3
1448    checkpoint46b_pre
1449    
1450    checkpoint46a_post
1451    o Added (atmospheric) pressure loading
1452      - new field in FFIELDS.h, etc...
1453      - new cpp flag ATMOSPHERIC_LOADING
1454    o Changed hFacC to _hFacC in calc_phi_hyd.F
1455    o Added SHORTWAVE_HEATING to some files for consistency
1456    checkpoint46a_pre
1457    
1458    checkpoint46
1459    further merges from release1_p5
1460    o new ctrl package
1461      - adopted from ECCO environment to enable optimization
1462      - added Eliassen Palm fluxes to controls
1463    o added Eliassen Palm flux controls to gradient check package
1464    o cost package
1465      - Compatible with new ctrl package
1466      - added Eliassen Palm cost hooks
1467      - modif's of existing cost functions
1468    o Adjoint-related bug fixes in kpp:
1469      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1470      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1471    o autodiff package
1472      - flow directives:
1473        + new for S/R do_the_model_io
1474        + enhanced for S/R checkpoint
1475        + new gmredi.flow
1476      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1477        disable adcommon.h/g_common.h by default.
1478      - fixed problem for adjoint of global_max
1479    o modified verification/carbon/
1480    o New setup for adjoint of global_ocean
1481    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1482    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1483    o incorporated hooks for sponge layer code (external_forcing.F)
1484    
1485    checkpoint45d_post
1486    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1487    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1488      (affects plume_on_slope "cg2d" output)
1489    o add new parameter deltaTfreesurf for free-surface time stepping
1490    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1491    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1492    o change phiMin in exp1 (to agree with documentation)
1493    o add new flags:
1494     - T,S forcing inside/outside Adams-Bashforth
1495     - turn off temp,salt advection and/or forcing
1496     - for each tracer, define internal flag for multiDimAdvection & A-B
1497    o monitor: change definition of KE to check conservation of Energy
1498    
1499    checkpoint45c_post
1500    o Removed f90 comments ("!")
1501    o Modified initialisations to enable exf package for MITgcm
1502      (without invoking ECCO_PACKAGE).
1503    o modifications to gradient check package (Martin Losch)
1504      - enable centered differences
1505      - modified format of standard output
1506    
1507    checkpoint45b_post
1508    o cleaned exchange calls in cg2d
1509    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1510    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1511      to configure barotropic setup (Martin Losch)
1512    o moved some initialisations within bi,bj loop in dynamics
1513      (TAF flow dependency)
1514    o in initialise_varia, moved call packages_init_variables
1515      before convective_adjustment_init
1516      (corresponding adjustment of TAF tape initialisation).
1517    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1518    
1519    checkpoint45a_post
1520    o compute Rho over the whole domain (extend iMin,jMin indices)
1521    o specific exchange for X-slice domain (case Ny=1)
1522  o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code  o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1523  o solve_for_pressure : set cg2d_x to zero where OBCS are applied  o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1524    

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