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revision 1.75 by jmc, Thu Jun 20 23:52:03 2002 UTC revision 1.369 by jmc, Sun Oct 17 23:29:14 2004 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o allow to set a vertical profile of vertical diffusivity for T & S
7    
8    checkpoint55g_post
9    o Renaming carbon AD experiments to comply with testreport conventions
10    o Updating adjoint of Held-Suarez hs94.1x64x5
11    o Fixing directives for non-ECCO forward_step, after ECCO directives
12      have been fixed to avoid recomp. of do_oceanic_phys
13      Works well for global_ocean.90x40x15,
14      but recomp. issue remains for carbon
15    o Updating adjoint output for natl_box_adjoint after
16      pkg/ecco has been modified (see taga c55d_post)
17    
18    checkpoint55f_post
19    o rename to timeave_init_fixed
20    
21    checkpoint55e_post
22    o some delicate re-shuffle of store directives to avoid one
23      extra call of do_oceanic_physics
24      affects ecco_the_main_loop.F, do_oceanic_physics.F
25      checkpoint_lev1_directives.h
26    o NB: this may break global_ocean adjoint temporarily,
27      but it is clear how to fix it. Will do later, need this now.
28    
29    checkpoint55d_post
30    o ECCO specific cost function terms (up-to-date with 1x1 runs)
31    o ecco_cost_weights is modified to 1x1 runs
32    o modifs to allow observations to be read in as
33      single file or yearly files
34    o enable to read exf forcing fields as either
35      single file or yearly files (flag useExfYearlyFields)
36    checkpoint55d_pre
37    
38    o switch between 2-level and 3-level checkpointing
39    o add ability of MNC to write local and "partial" (eg. 2D slices where
40      the full 3D field is never actually stored) arrays to NetCDF files
41      with the correct (that is, the complete multi-dimensional) set of
42      array indicies
43      - used in mom_vecinv() to write the diagFreq output
44      - tested (demonstrated) in verification/aim.5l_cs
45    o further mnc-ification
46      - add verification/lab_sea to the list with mnc setups
47      - fix undefined mnc v-names in cd_code
48      - add kpp to mnc output (both snapshot and timeave)
49    o non-hydrostatic code
50      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
51        in calc_gw.F
52      - defaults to viscAh
53      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
54        friction or Leith) in non-hydrostatic mode, as long as there is
55        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
56    o pkg/cost
57      extend simple cost functions to treat time mean quantities
58      (T,U,V) via cost_accumulate_state from cost_tile
59    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
60        be 2 times larger than the minimum size the advection scheme requires.
61        now get a perfect conservation of salt in advect_cs test-exp (updated)
62    o GGL90 (Gaspar's TKE mixed layer)
63      - add horizontal diffusion of TKE, requires exchanges in
64        do_fields_blocking_exchanges, horizontal diffusivity is zero by
65        default. In OPA there is no horizontal diffusion of TKE but the
66        mixing coefficients are computed from a horizontal average of TKE of
67        6 points or so. I think that diffusion has a little more physical
68        justification.
69      - clean up ggl90_calc in the hope of reducing memory usage (this hope
70        was in vain)
71      - mask tke-variable in ggl90_init
72    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
73    o fix biharmonic diffusion on CS-grid.
74    o more obcs stuff
75      - added obcs_external_fields_load as an alternative to the EXF-pkg option
76        for reading boundary values. This routine is called from
77        obcs_prescribe_read
78      - updated obcs_check
79      - changed sponge layer relaxation parameter units for days to seconds
80      - turned off sponge layer by default
81      - changed argument list of OBCS_CALC to myTime+deltaTclock
82      - fixed about 35 bugs in obcs_external_fields_load
83    
84    checkpoint55c_post
85    o obcs stuff
86      - new runtime flags useOBCSprescribe, useOBCSbalance
87      - re-arranged obcs_calc
88      - moved exf_getobcs to obcs_prescibe_read
89        obcs_prescibe_read is called after ORLANSKI stuff
90        and independent of it (executable can contain all).
91      - updated obcs_check
92      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
93        These may be necessary only if tangential velocities are
94        prescribed at OB, not sure, needs testing.
95    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
96      which simplifies the calls and passes the ifc check-bounds test
97    
98    checkpoint55b_post
99    o add a 2D scalar, Z location, exchange_2 routine.
100    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
101      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
102      affects advect_cs results (for the wrong reason): update output.txt
103    o use a more standard discretization for biharmonic viscosity ;
104     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
105      affects results of dome set-up: update output.txt
106    o fix gad_advection.F (CubedSphere part), back to version 1.23
107    o fix bug in mom_vi_del2uv.F (CubedSphere part).
108    
109    checkpoint55a_post
110    o merged code to
111      * prescribe/read time-dependent open boundaries
112        (works in conjunction with exf, cal)
113      * sponge layer code for open boundaries
114      * each boundary N/S/E/W now has its own CPP option
115        (healthy for the adjoint)
116    
117    checkpoint55
118    o up-to-date adjoint of previous breaks
119      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
120      - global_ocean_ebm: adjoint still needs fix (TLM ok)
121      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
122      - carbon: * remove tr1-related adjoint verification
123                * add ptracer as control variable
124    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
125      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
126    
127    checkpoint54f_post
128    o in verification/carbin/ remove experiment related to
129      ALLOW_PASSIVE_TRACER (array tr1 etc)
130      code_ad/ input_ad/ results_ad
131    
132    o add two new packages
133      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
134        + subject to optimization (memory)
135      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
136        + subject to reordering (many GOTOs in the original code)
137        + so far opps is called for every (i,j) point, and then operates in
138          the vertical; one may want to reorder the scheme in order operate in
139          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
140          fields)
141    o overhaul of IO so that we now have flags for MDSIO and/or MNC
142      - all verification tests compile and run with linux_ia32_g77
143      - defaults are compatible with current input files--nothing
144        should change if you were not previously using MNC
145      - MNC output has been added in numerous places (eg. timeave)
146        but there are still a few writes not yet do-able with MNC
147        (this is in progress)
148      - flags now allow for either/or/both use of MDSIO and MNC and
149        documentation will soon follow
150      - numerous small formatting cleanups for ProTeX
151    o add version info (via BUILD_INFO.h) to MNC and stdout
152    
153    checkpoint54e_post
154    o add two new packages
155      - pp81 (Packanowski and Philander, 1981), Richardson number and
156        stratification dependent mixing
157      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
158      - these scheme operate in a similar manner as KPP (without ghat, of
159        course), however there is only one diffusivity that is used for both
160        temperature and salinity (and passive tracers)ç
161    o add offline package
162    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
163      provided by Stephanie Dutkiewicz
164    o genmake2: add ability to search for C compilers and cleanup test output
165      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
166    
167    checkpoint54d_post
168    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
169    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
170      leading to additional shift by 5 days each year of integration
171       (i.e. leading to considerable offset over the years)
172    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
173    o start with no AB and no initial filtering (staggerTimeStep):
174      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
175    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
176      (external loading & cpl import/export stay in forward_step.F)
177    o update coupling interface to work with new staggerTimeStep
178    o change MDSIO ptracers_pickup.
179    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
180    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
181    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
182    
183    checkpoint54c_post
184    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
185      this affects (truncation error) output.txt of test-exp:
186       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
187    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
188    o change Qnet to always be the net heat flux, (+upward).
189      affects (truncation error) output of natl_box exp.: updated
190    o define the max number of passive tracers in PTRACERS_SIZE.h
191    o start to test mnc routinely in exp0
192    o add sea-ice loading (sIceLoad) as a new forcing field.
193    
194    checkpoint54b_post
195    o add testreport "-j JOBS" option for parallel builds (tested and pretty
196       impressive on Altix and Opteron systems)
197    o diagnostics can now write NetCDF files through the mnc package
198    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
199    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
200    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
201      affects (truncation error) output of lab_sea & natl_box exp.: updated
202    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
203    
204    checkpoint54a_post
205    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
206    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
207    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
208    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
209      + internal_wave (shift in writing cg2d_ini_res)
210    checkpoint54a_pre
211    
212    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
213      - modified verification/lab_sea and natl_box_adjoint accordingly
214    
215    checkpoint54
216    checkpoint53g_post
217    o prepare splitting of thermodynamics: store convect.counter in common block
218    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
219      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
220    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
221    o new parameter "nShapS": allow to treat differently S from T (nShapT)
222    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
223    o restore adjointability
224    
225    checkpoint53f_post
226    o modifications that affect AIM experiment results (update output.txt):
227      - no advection of S at top interface Nr (pkg/generic_advdiff)
228      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
229    o AIM pkg:
230      - include stability function into surf.Flux derivative relative to Tsurf
231      - calculate clear-sky radiation & surface temp. change (for diagnostics)
232    
233    checkpoint53e_post
234    o merged cylindrical coord configuration
235    o added rotating_tank experiment
236    checkpoint53e_pre
237    
238    checkpoint53d_post
239    o faulks upgraded: re-generate output.txt that have changed:
240       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
241    o Added Bryan and Lewis, 1979, vertical diffusivity profile
242    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
243    o added Sadourny discretization of Coriolis
244      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
245      - re-enabled use of omega3 (useAbsVorticity)
246    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
247      vector-invariant equations
248      - note: does *NOT* yet use same variable visc. for no-slip BC's.
249    o recoded the lateral boundary conditions for non-hydrostatic w, this time
250      hopefully without new bugs
251      - still to do: biharmonic friction for non-hydrostatic w
252    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
253    o regenerated output for global_ocean_ebm (using -ieee)
254    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
255      of mom_common/
256      - simple re-arrangement of instructions within computing loop
257    checkpoint53d_pre
258    
259    checkpoint53c_post
260    o new version of coupler for AIM+thSIce and Ocean models
261     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
262     - land: change Evaporation of snow
263     - aim with thSIce: fix bug in snow-precip.
264    o changes to calc_gw.F
265     - bug fix for w^2 term near the bottom boundary
266     - (hopefully) improve the lateral slip boundary condtions for use with
267        partial/looped cells
268      - because the bug fix changes two verification experiments anyway (exp5
269        and plume on slope), change the lateral boundary condition from half slip
270        to the value of no_slip_sides
271    o ebm package wasnt quite up to the parallel task. Fixed that.
272    o Adjoint of EBM package + verification
273      * TLM OK
274      * ADM not sufficient accuracy yet (needs further testing)
275    
276    checkpoint53b_post
277    o Commiting new energy balance model to repository
278      * package is pkg/ebm
279      * verif. is verification/global_ocean_ebm
280      * references are in ebm_driver.F
281    C      * X. Wang, P. Stone and J. Marotzke, 1999:
282    C        Global thermohaline circulation. Part I:
283    C        Sensitivity to atmospheric moisture transport.
284    C        J. Climate 12(1), 71-82
285    C      * X. Wang, P. Stone and J. Marotzke, 1999:
286    C        Global thermohaline circulation. Part II:
287    C        Sensitivity with interactive transport.
288    C        J. Climate 12(1), 83-91
289    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
290    C        Destabilization of the thermohaline circulation
291    C        by atmospheric eddy transports.
292    C        J. Climate 7(12), 1870-1882
293    o Will need long integration testing.
294    checkpoint53b_pre
295    
296    o created pkg/mom_common in preparation for variable viscosity code
297    o renamed and split ini_mnc_io
298    o pkg/land: only liquid water can diffuse or run-off
299    o AIM using land: soil wetness availability account for snow
300    o added printMapIncludesZeros to EEPARMS namelist
301    
302    checkpoint53a_post
303    o restore TAMC compatiility for exf_constants.h
304      (no usage of _d in .h)
305    o Additional storing in KPP in an attempt to fix
306      TAMC problem with adjoint of KPP code.
307      (no success...)
308      Identical code works fine with TAF.
309    o Fixed verification/natl_box_adjoint experiments.
310      Initial conditions for Experiments 4 and 5 are now
311      set to "SEAICE_initialHEFF=0", which is more reasonable,
312      and hence gives results closer to that of Experiment 2.
313      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
314    
315    checkpoint53
316    o stable checkpoint with up to date adjoint
317      TLM tests only run for 1st grdchk at the moment. Its unclear if
318      this is a code problem or a problem with resetting code for g_
319      variables that is being autogenerated wrong.
320      Otherwise:
321       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
322       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
323         are both still in chaos following their security messes.
324    
325    checkpoint52n_post
326    o various build (mostly genmake2) changes including:
327      - ability to build/run more easily within Cygwin and MacOS X
328      - more complicated Makefiles with a stronger dependence on Gnu Make
329    o pkg/seaice modifications
330      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
331        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
332        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
333      - changed proxy for geostrophic velocity and updated
334        verification/lab_sea/results/* accordingly
335      - removed ADI dynamic solver from pkg/seaice
336      - replaced all occurrences of 1/CSTICE or 1/CSUICE
337        they caused a segmentation fault under certain circumstances
338      - removed unused field WATR
339    o bug fix in exf-package:
340      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
341         now reflect that.
342    o small fixes in the cal-package:
343      - set reference date to first of January for the 'model'-calendar
344      - failing of cal_CheckDate in cal_FullDate now actually results in a
345        warning
346    o small modifications in exf-package to increase flexibility:
347      - change climtempfreeze from a constant to a runtime parameter that
348        is specified in data.exf_clim (default = -1.9)
349      - introduce runtime parameter windstressmax (default = 2.0) that is
350        specified in data.exf
351    o fix in pkg/thsice:
352      - update Evap (Tsf changes) to be consistent with Latent heat flux
353      - maintain snow precipitation unchanged (even if Tsf >=0).
354     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
355    
356    checkpoint52m_post
357    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
358      this does not change any of the results, because myIter=0 in swfrac always
359      lead to jwtype=2 (the default anyway), but the call makes little sense
360      as a default
361    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
362    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
363      atmospheric model (AIM) to use it ; add a "slab ocean" component.
364    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
365    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
366    o extending useSingleCpuIO option to work with new exch2 I/O format
367      - old-style, missing-tile I/O is still accessible by defining CPP
368        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
369    o monitor package can write to NetCDF files and/or STDOUT
370    o fix re-definition bug in MNC_GRID_INIT_ALL()
371    o doc/api_reference added
372      - a framework for building an API Reference Manual using all
373        the "protex" comments embedded in the code
374      - see pkg/generic_advdiff, pkg/mnc for examples
375    o MNC:
376      - make myThid the last argument for all subroutines
377      - new default for the grid files: NO halos
378      - add useMNC and other run-time flags
379      - separate per-file-group handling of the unlimited dimension
380      - early initialization of MNC w/ flags read at the eeboot stage
381        and lookup tables set in initialize_fixed
382      - write all MNC output to a freshly-created directory
383    o thermodynamics sea-ice (thsice) is now tested with testreport.
384    o test exp. advect_cs: use the standard cs32 grid ; update output.
385    o Added functionality to grdchk:
386      pick global i,j,k position (or nearest wet) where to perform check.
387    
388    checkpoint52l_post
389    o new land formulation:
390      a) use ground enthalpy as prognostic variable to ensure exact
391         energy conservation.
392      b) account for water temperature and for latent heat of freezing
393         in all processes (rain, run-off, ground storage)
394      c) compute surface and ground temperature implicitly.
395    o aim_v23 modification for new land model:
396      a) Treat separately land / ocean / sea-ice surface fluxes
397         to allow implicit computation of land & sea-ice surface temp.
398      b) add snow precipitation.
399    checkpoint52l_pre
400    
401    o fix problem (when 1 tile is empty) in min/max monitor.
402    o fix bug in timeAve (u,vZetatave in common block)
403    o no restoring terms under ice for pkg/seaice
404    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
405    o bug fix for pkg/seaice pickups
406    o change MNC call locations and add coordinate attributes
407    o mask vorticity at the corner ; affects global_ocean.cs output
408    o fix ini_curvilinear_grid ; test CS experiments with mpi
409    o aim.5l_cs: modify sea-ice fraction input file ; update output
410    o exf: Adding simple range check routine for exf fields after read
411    
412    checkpoint52k_post
413    o removed top-level directory "diags"
414      - we migrated these functions to pkg/timeave a long time ago
415    o fixed bug introduced in pkg/monitor
416    o accuracy ctrlprec = 32 insuffient for gradient checks using
417      averaged fields (I/O via cost_averages)
418      -> use ctrl.h in active_file*.F to control I/O precision.
419    o paramter list of CALL ADTHE_MAIN_LOOP
420    o added initial do_the_model_io to ecco
421    o set all ...Freq to zero after cost_final
422      taveFreq, dumpFreq, pChkptFreq
423    o MAIN and ECCO differentiability restored
424    
425    checkpoint52j_post
426    o fix nchklev in tamc.h for global_ocean...
427    o Bringing flow and store directives up-to-date
428    o Really weird thing!
429      call do_the_model_io from the_main_loop with parameters
430      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
431      TAF places a faulty re-call of initialise_varia
432      after cost_final call which should not be there!
433    checkpoint52j_pre
434    
435    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
436      error messages
437    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
438    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
439      debug output
440    o modfied mdsio_writefield.F to handle non-global files under exch2
441    o update AIM Cubed-Sphere exp (aim.5l_cs):
442      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
443    o update AIM Equatorial Channel exp:
444      use standard aim_v23 pkg and change the SST fields to be more realistic.
445    o globalFile now works with exch2
446    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
447      mon_vort3.F to make exch2 friendly with >1 tile per cube face
448    o limit timeave output for hi-res integrations
449    
450    checkpoint52i_post
451    o removed CPP_EEOPTIONS.h from verification/*/code
452    o updated the tiling for global_ocean_pressure
453    checkpoint52i_pre
454    
455    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
456      the old pkg/aim).
457    
458    checkpoint52h_pre
459    o shortened offending lines in exch2_send_rx?.template
460    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
461    o genmake2: add build & execute test for NetCDF code
462    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
463      old grid files, moved CPP_EEMACROS.h to pkg/exch2
464    o added useSingleCPUIO flag to monitor.F and mon_out.F
465    o added temporary hack for sea-ice dynamics on the cube:
466      metric terms are ignored and it is assumed that
467      there is no sea-ice on cube faces 1, 2, 4, and 5.
468    
469    checkpoint52f_post
470    o added exch2 cube routines to pkg/exch2
471    o modified hs94.cs-32x32x5 to use it
472    o added new grid files to hs94.cs-32x32x5
473    checkpoint52f_pre
474    
475    checkpoint52e_post
476    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
477      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
478    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
479      to work with implicit vertical advection and AB ;
480    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
481    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
482     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
483    checkpoint52e_pre
484    
485    o fix bug in impldiff when Nr=1 or Nr=2.
486    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
487    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
488    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
489      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
490    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
491    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
492    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
493    
494    checkpoint52d_post
495    o re-tiled many expts to allow comparison in multi-processor mode
496      - updated output accordingly
497      - changed hs94.128x64x5 to use intial T from file rather than use the
498        random number generator
499    o add infrastructure in model routines for fizhi and gridalt packages
500    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
501    o changes to permit hi-res, cubed-sphere, configuration
502      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
503      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
504      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
505        of surface winds for the cube
506      (A verification experiment, based on global_ocean.cs32x15, but with
507       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
508       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
509       complete with example surface forcing files and matlab scripts to look
510       at the output and compare it with that of global_ocean.cs32x15.)
511    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
512       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
513       to conform to the common rule.
514    o check-in the first version of the coupler + interfaces for multi-components
515       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
516       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
517       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
518       - ocean and atmos. share the same horizontal grid (no interpolation).
519       - exchanges between component and coupler is done in forward_step
520    o new verification experiment, cpl_aim+ocn:
521       coupled ocean - AIM atmosphere on cs32 grid.
522    
523    checkpoint52d_pre
524    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
525    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
526    
527    checkpoint52c_post
528    o Fixing OPTIONS files for use of exf:
529      - ALLOW_ECCO not needed
530      - ECCO_CPPOPTIONS.h should not be included from
531        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
532        as has been the case in the past
533      - All cal/exf related options are currently set in
534        single header file. Should remain so until we
535        agree on a consistent new policy.
536    o Removed all CPP options for cal package.
537      cal has no more CPP options.
538    o modified STOREs in GAD_ADVECTION
539    o corrected key comp. for passkey
540    
541    checkpoint52b_post
542    o new version: "thsice" of thermodynamic sea-ice pkg:
543     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
544     - modify fluxes but do not change theta directly;
545     - light cleaning of bulk_force pkg (still needed with thsice).
546     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
547       + output_thsice.txt to test thsice & bulk_force pkgs.
548    o put back grid & coriolis monitor output.
549    checkpoint52b_pre
550    
551    o call "do_the_model_io" at the beginning (=> dump initial state)
552    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
553    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
554      (need info on NUMBER_OF_PTRACERS)
555    o missing PTRACERS headers in some routines
556    o default tamc.h in pkg/autodiff supposed to crash
557      to ensure proper customization
558    
559    checkpoint52a_post
560    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
561      - moved surfaceTendencyTice from pkg/seaice to main code
562      - subroutine FREEZE_SURFACE now limits only surface temperature
563        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
564        => new output.txt for global_ocean.cs32x15 & global_with_exf
565      - keep the old version of FREEZE for backward compatibility;
566        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
567      - corresponding modifs for TAF directives
568    o added surface flux output variables to TIMEAVE_STATVARS
569    o time-averaged output for pkg/ptracers
570    o fix problem with ECCO-related divided adjoint
571      snapshot file was missing some ad-variables,
572      but no warning issued by TAF
573    
574    checkpoint52a_pre
575    o some bug fixes for #undef REAL4_IS_SLOW
576    
577    checkpoint52 = ecco_c52_e35
578    o after testing adjoints of checkpoint51u_post
579    
580    checkpoint51u_post
581    o this is the post-merge tag of the ecco-branch
582      (needs another clean checkout and re-testing)
583    o various natl_box_adjoint configs and results
584      but no input fields
585    o obcs adjoint not yet merged!
586    o adding ECCO global 1x1 and 2x2 degree configs
587    o updated/extended some store directives for seaice
588    o pkg/ecco now containes ecco-specific part of cost function
589    o top level routines the_main_loop, forward_step
590      supersede those in model/src/
591      previous input data.cost now in data.ecco
592      (new namelist ecco_cost_nml)
593    o in ctrl/ cleaned some cross-dependencies and updated CPP options
594    
595    checkpoint51t_post
596    o this is the pre-merge tag of the ecco-branch
597    
598    checkpoint51s_post
599    o cleanup: removed various obsolete #define-s
600    o pkg/grdchk
601      - renamed 'ph-grd 3' to 'grad-res'
602      - merged from ecco-branch
603        (remaining bug fixes for obcs gradient checks)
604      - additional high-precision output for testreport
605        (grep for 'precision_grdchk_result')
606    
607    checkpoint51r_post
608    o cleaned up or removed CPP_OPTIONS.h files
609    o updated results for some of the tests to reflect the new
610      optfiles (-ieee: -O0 instead of -O3)
611    
612    checkpoint51q_post
613    o cd_code:
614      - moved cd_scheme.F -> cd_code_scheme.F
615      - separate read_checkpoint from cd_code_ini_vars.F
616      - separated cd_code part from write_checkpoint
617      - updated AD_SOURCE, generated .flow
618      - added CD_CODE_VARS.h to the_main_loop
619      - Moving cd_code specific store dir.s to pkg/cd_code
620    o ctrl package totally restructured
621      - pack/unpack now optional and decoupled from
622        xx_/adxx_ I/O
623      - ctrl_pack/unpack cleaned
624        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
625      - confined inclusion of AD_CONFIG.h to where necessary.
626    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
627    
628    checkpoint51p_post
629    o create initial cd_code package
630      - WARNING: the initialization of fields within packages
631        is broken because INI_FIELDS (where READ_CHECKPOINT is
632        called) is called *before* PACKAGES_INIT_VARIABLES.
633        This seems to be backwards since
634        1) its important to initially zero the entire field including
635           the "halo" region
636        2) zeroing needs to be done *before* reading pickup info
637           and the pickup call might or might not happen in any
638           particular run
639      - this needs an overhaul for R2
640    o cleanup verification/*/code/GMREDI_OPTIONS.h
641    o cleanup testreport
642    
643    checkpoint51o_post
644    o bringing AD-related verif's up to date with genmake2
645      - carbon/
646      - global_ocean.90x40x15/
647      - hs.94.1x64x5/
648      - (front_relax/ )
649    o (more) consistent directory structure for AD-related verif.'s
650    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
651    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
652    o bug fix in find_alpha.F for MDJWF:
653      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
654        change rho -> rho-rhoConst
655      - replace call find_rho to find_rhonum
656    o initialisation of rFlx extended to full array (required by TAF)
657      and shifted to thermodynamics
658    o removed PTRACERS.h in ptracers routine
659    o added surfacetendencyPtr to S/R parameter list pracers_forcing
660    o Correcting initialisations for fVerU, fVerV.
661    o helping TAF to recognize dependency on kUp for
662      fVerU, fVerV
663    o Replacing delZ by delR in pkg/ctrl/
664    checkpoint51o_pre
665    
666    o undid all of cp51 pending some cleanups and discussion
667    o added the [#include "AD_CONFIG.h"] statement to all files that need
668       it for adjoint/tl #defines
669     o re-worked the build logic in genmake2 to support AD_CONFIG.h
670     o removed tools/genmake since it no longer works
671    
672    checkpoint51n_post
673    o modifications to make FREEZE flux visible to pkg/kpp
674      - moved surfaceTendencyTice from pkg/seaice to main code
675      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
676      - subroutine FREEZE now limits only surface temperature
677        (this means new output.txt for global_ocean.90x40x15,
678         global_ocean.cs32x15, and global_with_exf)
679    o added surface flux output variables to TIMEAVE_STATVARS
680    
681    checkpoint51n_pre
682    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
683    o added [#include "AD_CONFIG.h"] to all files that use the following
684      defines:
685      - ALLOW_ADJOINT_RUN
686      - ALLOW_TANGENTLINEAR_RUN
687      - ALLOW_ECCO_OPTIMIZATION
688    
689    checkpoint51m_post
690    o incorporating changes to get TAMC/TAF working in genmake2
691      - added new TAMC/TAF targets to the Makefile
692      - various cleanups related to package handling
693      - these changes should have no impact on the forward model
694    
695    checkpoint51l_post
696    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
697     - faster algorithm for cal_addtime.F
698     - higher precision arithmetic, where needed
699     - pkg/exf *startdate variables changed from calendar date to
700       model integration time
701    
702    checkpoint51l_pre
703    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
704    o enable to apply restoring on S & T only in a latitude band.
705    o update output (external_forcing_surf modif. change truncation errors)
706       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
707    
708    checkpoint51k_post
709    o change default to: useNHMTerms=.FALSE.
710     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
711       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
712     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
713        exp1, ideal_2D_oce
714     - change data file of oceanic exp (leave the results unchanged for now)
715       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
716    o set gravitySign automatically according to the vertical coordinate used
717      (and change sign: back to "logical" value: +1 when R increases downward)
718    o added an include barrier to the default CPP_OPTIONS.h and
719      removed the #include "PACKAGES_CONFIG.h" from it
720    o fix a bug in mom_fluxform (from chk51j_post)
721    
722    checkpoint51j_post
723    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
724    o adjusted some flow directives (dynamics, thermodynamics)
725    o added cubed-sphere case to test cost function
726    o heckpoint_lev?_directives.h now include
727      pkg-specific directives, whenever those are enabled.
728    o Moving pkg-specific flow directives to corresponding pkg
729      Moving pkg-specific differentiation list to corresponding pkg
730      Moving pkg-specific checkpoint-lev storing to corresponding pkg
731      ---> conventions are
732           - pkg_ad.flow
733           - pkg_ad_diff.list
734           - pkg_ad_check_lev?_dir.h
735    
736    checkpoint51i_post
737    o merge of the branch-genmake2
738      - knowingly breaks the older genmake
739      - automatic generation of all ALLOW_${PKG_NAME} defines
740      - new testreport supersedes older testscript
741    o large number of package inclusion and header cleanups
742    checkpoint51i_pre
743    
744    o new output for adjoin of global ocean vector invariant
745    o fix for checkpoint of thermodynamic seaice and bulk_force
746    o Steph gchem various cleanups
747    
748    checkpoint 51h_pre
749    o fixed some single quotes
750    o modify gchem pkg to be more versatile
751    o modifications to clean up dic pkg
752    o add pkg/cfc
753    
754    checkpoint51g_post
755    o provide links for ARPACK and ADM*TLM
756    o start removing verification/vero/
757    o update AD-related stuff
758      (in particular some IF-statements in model/src/ routines)
759    o adding to verification/global_ocean.90x40x15/ adjoint of
760      vector invariant setup
761    
762    checkpoint51f_post
763    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
764    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
765      of tracer Green's fucntions for ocean inversion project.
766    
767    checkpoint51f_pre
768    o Added on-the-fly spatial interpolation capability
769        "USE_EXF_INTERPOLATION" to pkg/exf.
770      - This is a temporary Cartesian-grid hack until
771        the super-duper ESMF coupler becomes available.
772      - See verification/global_with_exf/README for usage example.
773      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
774        flags and modified pkg/seaice accordingly.
775    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
776        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
777        non-local transport term.
778    
779    checkpoint51e_post
780    o pkg/mom_vecinv:
781      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
782      - add time-ave diagnostic of vorticity advection.
783    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
784    o atmospheric geopotential: - include water vapor effect;
785                                - use p^kappa in p* scaling.
786    o land pkg: read initial state from files.
787    o AIM : add stratospheric drag in the upper level
788    
789    checkpoint51d_post
790    o change function ILNBLNK (=> last non-blank char.) to return zero
791      (instead of the string length) when the string. char is empty
792    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
793    o modif's to restore TAMC compatibility
794      - avoid "_d" constructs in PARAMETER declarations
795      - avoid interrupting lines by comment lines
796    o Use cluster local disks for purely local I/O
797      vs. globally visible disks needed for ctrl stuff
798      (merged from ecco-branch)
799      - new active_file_loc... and mdsio_..._loc routines
800      - affected packages: autodiff, ctrl, grdchk, mdsio
801    
802    checkpoint51c_post
803    o introducing integer flag debugLevel
804      - debLevZero: suppress all output
805      - debLevA: standard
806      - debLevB: equivalent to current debugMode=.TRUE.
807    o introducing pathname variable mdsioLocalDir for mdsio
808      that can be specified at runtime
809      (relevant for cluster I/O to local disk)
810    `
811    >>>checkpoint51b_post
812    adjoint of ptracers
813    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
814    o extended state in checkpoint_lev?, etc.
815    o alternative ctrl/cost with tr1 or ptracer
816    o new comlev1_bibj_ptracers
817    o new ptracers.flow
818    o made ptracers_forcing same as external_forcing_s
819    o added verification for adjoint with ptracers
820      - adm. grdchk fail so far
821      - tlm. grdchk OK
822      - checked tapelev/comlev recomputations: OK
823    <<<checkpoint51b_pre
824    
825    checkpoint51a_post
826    o added code for biogeochemistry package
827      - new pkgs: dic, gchem
828      - new subroutine in ptracers
829    o modify code for biogeo packages
830      - in model/src and pkg/ptracers
831    
832    checkpoint51
833    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
834      - autodiff, ctrl, exf, grdchk, seaice
835      kept separate packages
836      - cost, ecco, obcs
837    o updating verification/internal_wave, verification/lab_sea
838      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
839    
840    checkpoint50i_post
841    o Preparing next differentiable checkpoint and sync
842      of MAIN vs. ecco-branch
843      - 1st step: this one is differentiable
844      - 2nd step: next(! not this) checkpoint will have updated packages
845                  from ecco-branch)
846    
847    checkpoint50h_post
848    o new package "land": provide surface BC for AIM.
849    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
850    o AIM: use true log-P extrapolation for near surface temp (= as in
851        F.Molteni paper) ; update aim.5l_cs output.
852    o New variable in PARM03 for more flexible pickups
853    o somewhat cleaned package initialisation sequence for
854      ctrl/ cost/ ecco/ in packages_... routines
855    
856    checkpoint50g_post
857    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
858      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
859      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
860        made the default because of faster convergence than ADI
861    
862    checkpoint50f_post
863    o exf totally restructured
864      - replaced all exf_set_ routines by one generic exf_set_gen.F
865        and made sure it's still differentiable
866      - split exf_getffields.F into new exf_bulkformulae.F
867      - exf_inscal_/exf_outscal_ suffixes consistent with field names
868      - updated adjoint/makefile and relevant verif. accordingly
869    
870    checkpoint50f_pre
871     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
872          + change Evap over land. (update aim.5l_cs output)
873     o added missing .cvsignores and made uniform across expts
874     o changed configuration of tidal_basin_2d expt
875     o added pkg/debug functions for tracing code in fatal crashes
876     o tidied pkg/monitor to use MONITOR_OPTIONS.h
877     o new fn in pkg/monitor to stop model if solution grows too big
878     o removed lots of single quotes from comments
879    
880    checkpoint50e_post
881    o make KPP work with PTRACERS
882     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
883       nearly a copy of kpp_transport_s
884     - there is no analogue to SurfaceTendencyS, so I have to use
885       gPtr(of the surface layer) instead
886    o add a new platform SunFire+mpi (SunFire 15000) to genmake
887    checkpoint50e_pre
888    
889    checkpoint50d_post
890    o change kpp output from multiple-record state files to single-record state
891      files analogous to write_state.F
892    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
893      analogous to the cg2d-related output.
894    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
895      so that writing to internal file fn (with length 512) fails.
896    checkpoint50d_pre
897    
898    checkpoint50c_post
899    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
900    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
901    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
902    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
903    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
904    
905    checkpoint50c_pre
906    Merging from release1_p13:
907    o bug fix for pkg/seaice dynamic solver
908    o Added SEAICE_initialHEFF to pkg/seaice
909    
910    checkpoint50b_post
911    o store u*,v* in gU,V instead of in guNm1,gvNm1
912    o in order to put the momForcing out of the Adams-Bashforth:
913      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
914      to timestep.F
915    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
916    o re-generate output for highly sensitive test-exp:
917       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
918    
919    checkpoint50b_pre
920    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
921    o corrected CPP option mismatch in exf_Bulk... functions for case
922      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
923    
924    checkpoint50a_post
925    o Bug fix for merging between c50 and KPP.
926      ikey was passed from thermodynamics to kpp_calc via
927      common block rather than being recomputed in kpp_calc,
928      in contradiction with new key itdkey.
929      New key ikppkey created, and tamc.h headers updated.
930    
931    checkpoint50
932    - 2nd step of merge with ecco-branch:
933      merge changes in ecco-branch back into main trunk
934    - bug fix in find_alpha
935    - more storing in gmredi_calc_tensor.F, kpp_routines.F
936    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
937    - merged some sliced AD support routines
938    
939    checkpoint49
940    merged from ecco-branch:
941    o exf:
942      - Enable initialisation of forcing fields to constant
943        (runtime) values.
944      - in exf_getffields.F
945        Reduce i-/j-loop to interior domain, discarding overlaps.
946        That also fixes wrong TAF-key computations for key_1, key_2
947        with bulf formulae.
948      - exf_init.F modify #ifdef for exf_init_evap
949      - exf_getffieldrec.F, ctrl_getrec.F
950        The following INT-usages are not safe:
951          fldsecs  = int(fldsecs/fldperiod)*fldperiod
952          fldcount = int(fldsecs/fldperiod) + 1
953        and were modified.
954    o autodiff: checkpoint_lev...
955      - updated storing for bulk formulae (some arrays were missing)
956      - added state for seaice package
957      - synchronized with main branch
958    o DIVA:
959      Modif.s in
960      - the_main_loop.F
961      - the_model_main.F
962      and added cost_final_restore.F cost_final_store.F
963      o With these changes, it is possible to fully separate
964        the first forward run to compute the cost function (mdthe_main_loop)
965        and adjoint runs over individual DIVA intervals (adthe_main_loop)
966        into separate model executions.
967        This enables better tuning of DIVA to given queue sizes.
968      o Loss of cost function value in consecutive DIVA runs is
969        fixed by storing to 'costfinal' file.
970      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
971        beginning/end of adjoint integration is accounted for.
972      The current changes apply to TAF-1.4.26.
973      TAF has one remaining bug, requiring one manual change
974      (see MITgcm manual).
975    o cal: synchronized between MAIN and ecco-branch
976    
977    checkpoint48i_post
978    o Changes to restore differentiability of code w.r.t. previous tag
979      (mostly adding new routines to make list and replacing
980      pressure by totPhiHyd).
981    o Updated and merged grdchk package
982      - has both ADM and TLM checks
983      - works for single- and multi-proc.
984      - output cleaned
985      - worked successfully for parallel DIVA
986    o genmake:
987      - Adding -platform=SP4
988      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
989    o Modif. for DIVA:
990      ctrl_unpack should not be called in intermediate DIVA interval.
991      (similar thing would apply for active files such as
992      tbar, sbar, psbar, which should not be reinitialised;
993      only relevant for ecco-branch)
994    
995    checkpoint48h_post
996    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
997    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
998    o Added SEAICE_initialHEFF to pkg/seaice
999    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1000    
1001    checkpoint48g_post
1002    --- EOS:
1003    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1004      store total Potential in totPhyHyd for diagnostics & EOS.
1005    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1006    --- Pressure/geopotential gradient:
1007    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1008    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1009      ( changes results of global_ocean_pressure )
1010    o NLFS + z-coord.: add eta*Rho' contribution.
1011    o accurate phiHyd when using interface-W at the middle between 2 centers
1012     ( changes results of ideal_2D_oce )
1013    o includes r* 2nd term in potential gradient.
1014    
1015    checkpoint48f_post
1016    Merging from release1_p12:
1017    o Modifications for using pkg/exf with pkg/seaice
1018      - improved description of the various forcing configurations
1019      - added basic radiation bulk formulae to pkg/exf
1020      - units/sign fix for evap computation in exf_getffields.F
1021      - updated verification/global_with_exf/results/output.txt
1022    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1023      (SBO) core products, including oceanic mass, center-of-mass,
1024      angular, and bottom pressure (see pkg/sbo/README.sbo).
1025    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1026      to avoid negative values in shallow regions.
1027      - updated verification/natl_box/results/output.txt
1028      - updated verification/lab_sea/results/output.txt
1029    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1030    o Added useSingleCpuIO option (see PARAMS.h).
1031    o Updated useSingleCpuIO option in mdsio_writefield.F to
1032      work with multi-field files, e.g., for single-file pickup.
1033    o pkg/seaice:
1034      - bug fix in growth.F: QNET for no shortwave case
1035      - added HeffFile for specifying initial sea-ice thickness
1036      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1037    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1038      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1039    o pkg/seaice:
1040      - adjoint-friendly modifications
1041      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1042    
1043    checkpoint48e_post
1044    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1045    o dynamics: change definition of computational domain & adapt mom_fluxform
1046      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1047    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1048        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1049        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1050        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1051        inverted_barometer solid-body.cs-32x32x1
1052      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1053    
1054    checkpoint48d_post
1055    o in preparation for r*:
1056     a) use pre-computed gradient of hydrostatic potential:
1057        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1058     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1059        => affects results of glob_oce_pressure (different truncation error)  
1060      update output.txt of ideal_2D_oce & global_ocean_pressure
1061    
1062    checkpoint48d_pre
1063    o in preparation for r*:
1064      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1065      pass the 2 comp. of the grad. as arguments to momentum S/R.
1066      but for the moment, only used if it does not change the results.
1067    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1068    
1069    checkpoint48c_post
1070    Modifications in treatment of initial flux forcing controls
1071    to avoid extra storing of flux fields.
1072    
1073    checkpoint48c_pre
1074    o Added tidal_basin_2d experiment (currently 1D!)
1075    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1076    
1077    checkpoint48b_post
1078    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1079     (modification to pressure gradient not yet implemented)
1080    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1081      (for U & V) that are used for vertical advection of momentum.
1082    
1083    checkpoint48a_post
1084    o In preparation for r*, use temp. array to compute vertical transport
1085       in flux-form momentum pkg. => change results of few test-exp.
1086      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1087                        lab_sea, natl_box & plume_on_slope
1088    
1089    checkpoint48
1090    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1091    
1092    checkpoint47j_post
1093    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1094    o moved adexch from forward_step to addummy_in_stepping
1095    o added exch in ctrl_map_...
1096    o aveFreq.=0. at end of cost_final to avoid overwrite in
1097      reverse checkpointing loop
1098    o Yet more changes in gmredi:
1099      * adgmredi_calc_tensor
1100        avoiding all recomputation of gmredi_slope_limit
1101      * adgmredi_x/y/rtransport
1102        added flag for excessive storing to avoid recomp. of
1103        u/v/rtans, dTdx/y/z
1104        -> this is not really necessary and very memory-consuming
1105      * adgmredi_slope_psi:
1106        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1107      * gmredi_slope_limit
1108        re-activated full calculation of taperfct for case 'ac02'
1109    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1110    
1111    checkpoint47i_post
1112    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1113    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1114      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1115    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1116    o gmredi: fix few bugs.
1117    
1118    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1119    This will be a good checkpoint to plug into the ecco-branch.
1120    o few modif.'s to get latest version adjointed
1121      (mainly kick out code in ini_linear_phisurf)
1122    o modif's to run adjoint with exactConserv
1123    o case GM_BOLUS_ADVEC should be cleaned
1124      S/R gmredi_slope_psi should be cleaned
1125    o verification/carbon now has exactConserv=.TRUE.
1126    
1127    checkpoint47g_post
1128    o time-average AIM output: becomes independent from statvars time-average
1129      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1130    o After TAF bug fix:
1131      Tested adjoint of gmredi package.
1132      Tests were done with checkpoint47 rather than with latest
1133      checkpoint47f_post since the latter is broken for the adjoint
1134      verification/carbon/ contains both ADM and TLM gradient checks.
1135    Here they are, before they get changed/lost/stolen.
1136    Mostly modif.'s to fix numerical sensitivities.
1137    Gradient checks OK for
1138    - GM_taper_scheme:
1139      * clipping
1140      * ac02
1141      * linear
1142      * glw91
1143      * dm95
1144      * ldd97
1145    - GMREDI_OPTIONS:
1146      * GM_VISBECK_VARIABLE_K
1147      * GM_NON_UNITY_DIAGONAL
1148      * GM_EXTRA_DIAGONAL
1149      * GM_BOLUS_ADVEC
1150    in conjunction with data.gmredi parameters to be checked in
1151    in a few minutes under verification/carbon/code/
1152    
1153    checkpoint47f_post
1154    Merging from release1_p10:
1155    o modifications for using pkg/exf with pkg/seaice
1156      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1157        and SEAICE_EXTERNAL_FLUXES
1158      - pkg/exf CPP options EXF_READ_EVAP and
1159        EXF_NO_BULK_COMPUTATIONS
1160      - usage examples are Experiments 8 and 9 in
1161        verification/lab_sea/README
1162      - verification/lab_sea default experiment now uses
1163        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1164    
1165    checkpoint47e_post
1166    o created a tag prior to creating a branch
1167    
1168    checkpoint47d_post
1169    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1170      at the bottom boundary had an erroneous half slip boundary condition
1171    o added bottom drag and no slip boundary condition capabilities to
1172      oceanic pressure coordinates code
1173    o added new verification experiment global_ocean_pressure, this experiment is
1174      also described in the tutorial section of the manual
1175    checkpoint47d_pre
1176    
1177    checkpoint47c_post
1178    o Added a verification experiment for a global cubed-sphere ocean run
1179      -  verification/global_ocean.cubed32x32x30
1180      -  uses pkg/therm_seaice and pkg/bulk_forcing
1181    
1182    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1183    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1184      when using P-coordinate; only implemented for atmospheric config.
1185    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1186      NOTES: requires option NONLIN_FRSURF to be "#define".
1187    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1188    
1189    checkpoint47b_post
1190    Merging from release1_p9:
1191    o pkg/seaice
1192      - removed GOTO's and added taf directives
1193      - double precision constants to reduce the g77 (Linux)
1194        to F77 (SGI) differences reported in release1_p8
1195    o tools/genmake
1196      - added SGI options
1197    o verification/testscript
1198      - updated to that of checkpoint47a_post
1199    o verification/global_ocean.90x40x15/input/eedata
1200      - modified for SGI f77 compatibility
1201    o verification/lab_sea
1202      - added description of sea-ice model
1203      - added missing matlab routines
1204      - added test of thermodynamics parallelization
1205    
1206    checkpoint47a_post
1207    o new pkg: aim_v23
1208     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1209       for now, keep the same surface forcing as before.
1210     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1211     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1212     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1213    o add diagnostic of surface correction term in monitor output
1214    
1215    o bulk_force and therm_seaice
1216    - Two packages:  bulk_force (Bulk forcing)
1217      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1218    - Earlier integration from Stephaine Dutkiewicz
1219      and Patrick Heimbach.
1220    - Two ifdef statements for compile time,
1221       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1222    
1223    checkpoint47
1224    differentiable version of checkpoint46n_post
1225    o bug fix in quasihydrostaticterms
1226    o * "clean" adjoint code (in terms of extensive recomputations)
1227        can now be obtained for all GMREDI options (i.e. for
1228        - GM_VISBECK_VARIABLE_K
1229        - GM_NON_UNITY_DIAGONAL
1230        - GM_EXTRA_DIAGONAL
1231        - GM_BOLUS_ADVEC )
1232      * However, wrong gradient check problem remains unsolved.
1233      * New CPP options have been introduced for different
1234        tapering schemes
1235    o external_fields_load now part of differentiation list
1236    o pressure needs multiple storing;
1237      would be nice to have store_pressure at beginning or
1238      end of forward_step, e.g. by having phiHyd global (5-dim.)
1239      (NB: pressure is needed for certain cases in find_rho,
1240      which is also invoked through convective_adjustment).
1241    o recomputations in find_rho for cases
1242     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1243    o #define ATMOSPHERIC_LOADING should be differentiable
1244    o ini_forcing shifted to begining of initialise_varia
1245    o Incorporating QNVS line search routines into MITgcm
1246      (this is separate code, and therefore not under pkg)
1247      lsopt/, optim/
1248    o Updated verification/carbon/
1249      - #define GM_VISBECK_VARIABLE_K
1250      - GM_taper_scheme    = 'ldd97'    
1251    
1252    checkpoint46n_post
1253    Merging from release1_p8:
1254    o verification/natl_box:
1255      updating new external_fields_load routine
1256    o New package: pkg/seaice
1257      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1258      The sea-ice code is based on Hibler (1979-1980).
1259      Two sea-ice dynamic solvers, ADI and LSR, are included.
1260      In addition to computing prognostic sea-ice variables and diagnosing
1261      the forcing/external data fields that drive the ocean model,
1262      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1263      The implied surface heat flux is then stored in variable
1264      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1265      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1266      non-local transport term.  Because this call precedes model
1267      thermodynamics, temperature under sea-ice may not be "exactly" at
1268      the freezing point by the time theta is dumped or time-averaged.
1269      N.B.: fairly large differences in accuracy occur across
1270            different platforms/compilers; comparison between
1271            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1272            generated output gives:
1273       T           S           U           V
1274      C D M    c        m  s        m  s        m  s        m  s
1275      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1276      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1277      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1278    
1279      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1280    o GAD:
1281      - generated new common blocks to account for call of
1282        same gad routines with differing traceridentities
1283        (needed to modify tracerIdentity indices in GAD.h)
1284      - generated separate common blocks for case useCubedSphereExchange
1285        (Department of Futurology)
1286      - parameter lists to gmredi_?transport: added tracerIdentity
1287      - added new key indices to tamc.h
1288    o external_fields_load:
1289      - added this routine to TAF list
1290      - needed to make some common blocks global and additional storing
1291        along the same lines as exf package (checkpoint_lev?_directives.h)
1292    o exf:
1293      updated external forcing package
1294      - bug fixes carried over from ecco-branch
1295        (missing OBCS_OPTIONS.h in two routines)
1296      - enable easy to use "no forcing".
1297      - added exf I/O for atmospheric loading
1298      - added exf I/O for runoff data
1299      - transfered scaling between exf <-> MITgcm to exf namelist
1300    o Adding new verification experiment global_with_exf.
1301      This verification experiment is almost identical to the
1302      global_ocean.90x40x15 experiment, except that it uses
1303      the exf (and cal) package instead of the
1304      external_fields_load routine (cf README file).
1305    
1306    checkpoint46m_post
1307    o modified testscript to return -- when there are no lines of "%MON" output
1308    o added new flag "quasiHydrostatic" for QH mode
1309      and new routine quasihydrostaticterms()
1310    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1311      New routine: mom_u_coriolis_nh()
1312    o fixed sign of non-hydrostatic metric terms in u and v equations.
1313      Depend on correct sign of gravitySign.
1314    o added work.pc* to .cvsignore in aim directories using ifc
1315    o introduced flag for controllin non-hydrostatic metric terms
1316    o removed gravitySign from PARM04
1317    o switched to g77/ifc from pgf77 in aim experiments
1318    
1319    checkpoint46l_post
1320    o made convective adjustment work with pressure coordinates:
1321     - changed the direction of k-loop in convective_adjustment.F for the
1322       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1323     - adjusted the reference pressure k-index in convective_adjustment.F
1324     - adjusted the convection condition in convect.F (in analogy to
1325       calc_ivdc.F)
1326     - convective_adjustment no longer computes anything on the halos
1327     - removed the warnings about negative salinity from find_rho.F and
1328       find_alpha.F; instead the new routine look_for_neg_salinity, called
1329       at the beginning of find_rho, find_alpha, and find_beta, does a
1330       check of the entire slice, if CPP-option
1331       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1332    checkpoint46l_pre
1333    
1334    checkpoint46k_post
1335    o fixed the verification/global_ocean.90x40x15 experiment:
1336     - new bathymetry (the world according to A., JMC, and M.)
1337     - new initial fields and forcing fields (*.bin files)
1338     - new POLY3.COEFFS (for the next release one should switch to a full
1339       equation of state: JMD95P or MDJWF)
1340     - fixed several errors and redundancies in the data file
1341     - experiment uses looped cells
1342     - added matlab directory with diagnostic scripts for plotting of output
1343    
1344    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1345     - read AIM physics parameters from a file (data.aimphys)
1346     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1347    
1348    checkpoint46j_post
1349    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1350    o move wVel computation at the end of the time step, in S/R integr_continuity
1351    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1352    o update timeave pkg for wVel diagnostic.
1353    checkpoint46j_pre
1354    
1355    checkpoint46i_post
1356    o Clean up AIM package (and keep the results unchanged):
1357      include CPP_OPTION and use IMPLICT NONE in all routines ;
1358      declare all the variables _RL ; use _d 0 for all numerical constants.
1359      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1360    
1361    checkpoint46h_post
1362    o cleaned up the use of rhoNil and rhoConst.
1363      - rhoNil should only appear in the LINEAR equation of state, everywhere
1364        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1365        and the dynamical equations are all divided by rhoConst
1366    o introduced new parameter rhoConstFresh, a reference density of fresh
1367      water, to remove the fresh water flux's dependence on rhoNil. The default
1368      value is 999.8 kg/m^3
1369    o cleanup up external_forcing.F and external_forcing_surf.F
1370      - can now be used by both OCEANIC and OCEANICP
1371    checkpoint46h_pre
1372    
1373     Added code to convert surface volume flux (fresh water) into
1374     a mass flux when using P coordinates in the ocean (OCEANICP).
1375     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1376    
1377    checkpoint46g_post
1378    o Include a new diagnostic variable phiHydLow for the ocean model
1379      - in z-coordinates, it is the bottom pressure anomaly
1380      - in p-coordinates, it is the sea surface elevation
1381      - in both cases, these variable have global drift, reflecting the mass
1382        drift in z-coordinates and the volume drift in p-coordinates
1383      - included time averaging for phiHydLow, be aware of the drift!
1384    o depth-dependent computation of Bo_surf for pressure coordinates
1385      in the ocean (buoyancyRelation='OCEANICP')
1386      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1387        Theta, Salinity, and Pressure in the parameter list. This routine is
1388        presently contained in find_rho.F. This routine does not give the
1389        correct density for 'POLY3', which would be a z-dependent reference
1390        density.
1391    o cleaned up find_rho
1392      - removed obsolete 'eqn' from the parameter list.
1393    o added two new verification experiments: gop and goz
1394      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1395    checkpoint46g_pre
1396    
1397    checkpoint46f_post
1398    o Enable tangent linear (forward mode) gradient checks:
1399      - extended active file handling to g_... files
1400      - added TANGENT_SIMULATION to theSimulationMode
1401      - extended grdchk package accordingly
1402    o added tangent linear setup in verification/carbon/code_ftl
1403    o added adjoint setup in verification/front_relax/code_ad
1404    
1405    checkpoint46e_post
1406    o Added new equation of state -> MDJWF
1407      - EOS of McDougall et al., 2002, JAOT, submitted
1408      - caveat: the equation of state is only valid for a smaller (more
1409        realistic?) range of values than JMD95P/Z and UNESCO
1410      - added masks to the calculation of pressure in store_pressure
1411      - added more check values for density in check_eos (ini_eos.F), some of
1412        the old check values are out of the range of the MDJWF-eos, so don't
1413        expect perfect matches for those
1414    checkpoint46e_pre
1415    
1416    checkpoint46d_post
1417    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1418      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1419      case of pressure coordinates. eosType='JMD95Z' in
1420      combination with buoyancyRelation='OCEANICP' now causes an error.
1421    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1422      in find_alpha/beta.
1423    checkpoint46d_pre
1424    
1425    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1426      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1427    
1428    checkpoint46c_post
1429    o Changes necessary for ocean in p-coordinates
1430     -  Added new buoyancy relation = 'OCEANICP'
1431     -  Added new parameters = gravitySign (this used to be contained inside
1432        the factor dRdZ which I added when we first switched to R coordinates).
1433     X GM/Redi is not compatible (yet)
1434     X bottom drag and no-slip need to be debugged.
1435    checkpoint46c_pre
1436    
1437    checkpoint46b_post
1438    o Added new equation of state -> JMD95Z and JMD95P
1439      - EOS of Jackett and McDougall, 1995, JAOT
1440      - moved all EOS parameters into EOS.h
1441      - new routines ini_eos.F, store_pressure.F
1442    o Added UNESCO EOS, but not recommended because it requires
1443      in-situ temperature (see JMD95)
1444    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1445      unesco.f to be used with POLY3
1446    checkpoint46b_pre
1447    
1448    checkpoint46a_post
1449    o Added (atmospheric) pressure loading
1450      - new field in FFIELDS.h, etc...
1451      - new cpp flag ATMOSPHERIC_LOADING
1452    o Changed hFacC to _hFacC in calc_phi_hyd.F
1453    o Added SHORTWAVE_HEATING to some files for consistency
1454    checkpoint46a_pre
1455    
1456    checkpoint46
1457    further merges from release1_p5
1458    o new ctrl package
1459      - adopted from ECCO environment to enable optimization
1460      - added Eliassen Palm fluxes to controls
1461    o added Eliassen Palm flux controls to gradient check package
1462    o cost package
1463      - Compatible with new ctrl package
1464      - added Eliassen Palm cost hooks
1465      - modif's of existing cost functions
1466    o Adjoint-related bug fixes in kpp:
1467      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1468      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1469    o autodiff package
1470      - flow directives:
1471        + new for S/R do_the_model_io
1472        + enhanced for S/R checkpoint
1473        + new gmredi.flow
1474      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1475        disable adcommon.h/g_common.h by default.
1476      - fixed problem for adjoint of global_max
1477    o modified verification/carbon/
1478    o New setup for adjoint of global_ocean
1479    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1480    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1481    o incorporated hooks for sponge layer code (external_forcing.F)
1482    
1483    checkpoint45d_post
1484    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1485    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1486      (affects plume_on_slope "cg2d" output)
1487    o add new parameter deltaTfreesurf for free-surface time stepping
1488    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1489  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1490  o change phiMin in exp1 (to agree with documentation)  o change phiMin in exp1 (to agree with documentation)
1491  o add new flags:  o add new flags:

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