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revision 1.16 by cnh, Tue Nov 3 15:31:08 1998 UTC revision 1.388 by mlosch, Fri Nov 19 01:35:33 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o GCHEM:
7      - move call to GCHEM_FORCING_SEP, so that it is now called before
8        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
9      - introduced a useGCHEM runtime flag and applied it everywhere.
10    
11    checkpoint56
12    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
13    o mnc: cleanup "full" files--fixes out-of-memory problem
14    o ECCO-GODAE
15      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
16      * fully merged and updated from SIO code
17        windstress sign change affects
18        - exf_inscal_[u/v]stress
19        - sign of xx_tau[u/v] adjustments
20        - signs in cost_scat
21      * ctrl_get_gen: avoid update of tau[u/v] for first few days
22      * natl_box_adjoint updated and compressed
23      * 2-level checkpoint switch added
24        (tested in EXP. 1 of natl_box_adjoint)
25      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
26    o SVD
27      * first complete, non-hacked version for SVD calculations
28      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
29        performed via direct access files admtlm_vector.it????
30        (via ctrl_[un]pack)
31      * optimcycle is used for ARPACK iteration counter
32        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
33      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
34        and add linear transforms where necessary
35      * controls are initial/final SST, SSS (can be extended; need to check
36        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
37    o mdsio: filename info to both stderr, stdout
38    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
39      from sign change
40    
41    checkpoint55j_post
42    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
43      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
44    o add consistent build directories and .cvsignore files to verification
45    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
46    o make all subroutines 30 or less characters in length for certain older
47      compilers to work (a thorough search only turns up two routines in
48      pkg/ptracers)
49    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
50      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
51    
52    checkpoint55i_post
53    o change arrays for total vertical diffusivity (2.D if explicit,
54      3.D if implicit) ; each ptracer uses its own background value.
55    o added mnc/NetCDF output capability to ocn_compon_interf
56      - added bits to verification/cpl_aim+ocn so that it can run on
57        ITRDA and other clusters without the mpirun "-wd" option
58    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
59      configuration
60    o give MNC the ability to create additional files rather than
61      exceeding a specified file size limit "MNC_MAX_FILESIZE"
62      - the default is just less than 2GB which is a practical limit
63        on many systems
64    o Compute the non-local term using either KPP vertical diffusivity (=default)
65       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
66    
67    checkpoint55h_post
68    o add verification test "vermix"
69    o remove all the *_ioinc flags and replace with the single global
70      outputTypesInclusive flag
71    o allow to set a vertical profile of vertical diffusivity for T & S
72    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
73    o useMNC moved from data.mnc to data.pkg
74    
75    checkpoint55g_post
76    o Renaming carbon AD experiments to comply with testreport conventions
77    o Updating adjoint of Held-Suarez hs94.1x64x5
78    o Fixing directives for non-ECCO forward_step, after ECCO directives
79      have been fixed to avoid recomp. of do_oceanic_phys
80      Works well for global_ocean.90x40x15,
81      but recomp. issue remains for carbon
82    o Updating adjoint output for natl_box_adjoint after
83      pkg/ecco has been modified (see taga c55d_post)
84    
85    checkpoint55f_post
86    o rename to timeave_init_fixed
87    
88    checkpoint55e_post
89    o some delicate re-shuffle of store directives to avoid one
90      extra call of do_oceanic_physics
91      affects ecco_the_main_loop.F, do_oceanic_physics.F
92      checkpoint_lev1_directives.h
93    o NB: this may break global_ocean adjoint temporarily,
94      but it is clear how to fix it. Will do later, need this now.
95    
96    checkpoint55d_post
97    o ECCO specific cost function terms (up-to-date with 1x1 runs)
98    o ecco_cost_weights is modified to 1x1 runs
99    o modifs to allow observations to be read in as
100      single file or yearly files
101    o enable to read exf forcing fields as either
102      single file or yearly files (flag useExfYearlyFields)
103    checkpoint55d_pre
104    
105    o switch between 2-level and 3-level checkpointing
106    o add ability of MNC to write local and "partial" (eg. 2D slices where
107      the full 3D field is never actually stored) arrays to NetCDF files
108      with the correct (that is, the complete multi-dimensional) set of
109      array indicies
110      - used in mom_vecinv() to write the diagFreq output
111      - tested (demonstrated) in verification/aim.5l_cs
112    o further mnc-ification
113      - add verification/lab_sea to the list with mnc setups
114      - fix undefined mnc v-names in cd_code
115      - add kpp to mnc output (both snapshot and timeave)
116    o non-hydrostatic code
117      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
118        in calc_gw.F
119      - defaults to viscAh
120      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
121        friction or Leith) in non-hydrostatic mode, as long as there is
122        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
123    o pkg/cost
124      extend simple cost functions to treat time mean quantities
125      (T,U,V) via cost_accumulate_state from cost_tile
126    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
127        be 2 times larger than the minimum size the advection scheme requires.
128        now get a perfect conservation of salt in advect_cs test-exp (updated)
129    o GGL90 (Gaspar's TKE mixed layer)
130      - add horizontal diffusion of TKE, requires exchanges in
131        do_fields_blocking_exchanges, horizontal diffusivity is zero by
132        default. In OPA there is no horizontal diffusion of TKE but the
133        mixing coefficients are computed from a horizontal average of TKE of
134        6 points or so. I think that diffusion has a little more physical
135        justification.
136      - clean up ggl90_calc in the hope of reducing memory usage (this hope
137        was in vain)
138      - mask tke-variable in ggl90_init
139    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
140    o fix biharmonic diffusion on CS-grid.
141    o more obcs stuff
142      - added obcs_external_fields_load as an alternative to the EXF-pkg option
143        for reading boundary values. This routine is called from
144        obcs_prescribe_read
145      - updated obcs_check
146      - changed sponge layer relaxation parameter units for days to seconds
147      - turned off sponge layer by default
148      - changed argument list of OBCS_CALC to myTime+deltaTclock
149      - fixed about 35 bugs in obcs_external_fields_load
150    
151    checkpoint55c_post
152    o obcs stuff
153      - new runtime flags useOBCSprescribe, useOBCSbalance
154      - re-arranged obcs_calc
155      - moved exf_getobcs to obcs_prescibe_read
156        obcs_prescibe_read is called after ORLANSKI stuff
157        and independent of it (executable can contain all).
158      - updated obcs_check
159      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
160        These may be necessary only if tangential velocities are
161        prescribed at OB, not sure, needs testing.
162    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
163      which simplifies the calls and passes the ifc check-bounds test
164    
165    checkpoint55b_post
166    o add a 2D scalar, Z location, exchange_2 routine.
167    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
168      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
169      affects advect_cs results (for the wrong reason): update output.txt
170    o use a more standard discretization for biharmonic viscosity ;
171     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
172      affects results of dome set-up: update output.txt
173    o fix gad_advection.F (CubedSphere part), back to version 1.23
174    o fix bug in mom_vi_del2uv.F (CubedSphere part).
175    
176    checkpoint55a_post
177    o merged code to
178      * prescribe/read time-dependent open boundaries
179        (works in conjunction with exf, cal)
180      * sponge layer code for open boundaries
181      * each boundary N/S/E/W now has its own CPP option
182        (healthy for the adjoint)
183    
184    checkpoint55
185    o up-to-date adjoint of previous breaks
186      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
187      - global_ocean_ebm: adjoint still needs fix (TLM ok)
188      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
189      - carbon: * remove tr1-related adjoint verification
190                * add ptracer as control variable
191    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
192      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
193    
194    checkpoint54f_post
195    o in verification/carbin/ remove experiment related to
196      ALLOW_PASSIVE_TRACER (array tr1 etc)
197      code_ad/ input_ad/ results_ad
198    
199    o add two new packages
200      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
201        + subject to optimization (memory)
202      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
203        + subject to reordering (many GOTOs in the original code)
204        + so far opps is called for every (i,j) point, and then operates in
205          the vertical; one may want to reorder the scheme in order operate in
206          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
207          fields)
208    o overhaul of IO so that we now have flags for MDSIO and/or MNC
209      - all verification tests compile and run with linux_ia32_g77
210      - defaults are compatible with current input files--nothing
211        should change if you were not previously using MNC
212      - MNC output has been added in numerous places (eg. timeave)
213        but there are still a few writes not yet do-able with MNC
214        (this is in progress)
215      - flags now allow for either/or/both use of MDSIO and MNC and
216        documentation will soon follow
217      - numerous small formatting cleanups for ProTeX
218    o add version info (via BUILD_INFO.h) to MNC and stdout
219    
220    checkpoint54e_post
221    o add two new packages
222      - pp81 (Packanowski and Philander, 1981), Richardson number and
223        stratification dependent mixing
224      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
225      - these scheme operate in a similar manner as KPP (without ghat, of
226        course), however there is only one diffusivity that is used for both
227        temperature and salinity (and passive tracers)ç
228    o add offline package
229    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
230      provided by Stephanie Dutkiewicz
231    o genmake2: add ability to search for C compilers and cleanup test output
232      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
233    
234    checkpoint54d_post
235    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
236    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
237      leading to additional shift by 5 days each year of integration
238       (i.e. leading to considerable offset over the years)
239    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
240    o start with no AB and no initial filtering (staggerTimeStep):
241      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
242    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
243      (external loading & cpl import/export stay in forward_step.F)
244    o update coupling interface to work with new staggerTimeStep
245    o change MDSIO ptracers_pickup.
246    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
247    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
248    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
249    
250    checkpoint54c_post
251    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
252      this affects (truncation error) output.txt of test-exp:
253       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
254    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
255    o change Qnet to always be the net heat flux, (+upward).
256      affects (truncation error) output of natl_box exp.: updated
257    o define the max number of passive tracers in PTRACERS_SIZE.h
258    o start to test mnc routinely in exp0
259    o add sea-ice loading (sIceLoad) as a new forcing field.
260    
261    checkpoint54b_post
262    o add testreport "-j JOBS" option for parallel builds (tested and pretty
263       impressive on Altix and Opteron systems)
264    o diagnostics can now write NetCDF files through the mnc package
265    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
266    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
267    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
268      affects (truncation error) output of lab_sea & natl_box exp.: updated
269    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
270    
271    checkpoint54a_post
272    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
273    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
274    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
275    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
276      + internal_wave (shift in writing cg2d_ini_res)
277    checkpoint54a_pre
278    
279    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
280      - modified verification/lab_sea and natl_box_adjoint accordingly
281    
282    checkpoint54
283    checkpoint53g_post
284    o prepare splitting of thermodynamics: store convect.counter in common block
285    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
286      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
287    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
288    o new parameter "nShapS": allow to treat differently S from T (nShapT)
289    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
290    o restore adjointability
291    
292    checkpoint53f_post
293    o modifications that affect AIM experiment results (update output.txt):
294      - no advection of S at top interface Nr (pkg/generic_advdiff)
295      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
296    o AIM pkg:
297      - include stability function into surf.Flux derivative relative to Tsurf
298      - calculate clear-sky radiation & surface temp. change (for diagnostics)
299    
300    checkpoint53e_post
301    o merged cylindrical coord configuration
302    o added rotating_tank experiment
303    checkpoint53e_pre
304    
305    checkpoint53d_post
306    o faulks upgraded: re-generate output.txt that have changed:
307       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
308    o Added Bryan and Lewis, 1979, vertical diffusivity profile
309    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
310    o added Sadourny discretization of Coriolis
311      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
312      - re-enabled use of omega3 (useAbsVorticity)
313    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
314      vector-invariant equations
315      - note: does *NOT* yet use same variable visc. for no-slip BC's.
316    o recoded the lateral boundary conditions for non-hydrostatic w, this time
317      hopefully without new bugs
318      - still to do: biharmonic friction for non-hydrostatic w
319    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
320    o regenerated output for global_ocean_ebm (using -ieee)
321    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
322      of mom_common/
323      - simple re-arrangement of instructions within computing loop
324    checkpoint53d_pre
325    
326    checkpoint53c_post
327    o new version of coupler for AIM+thSIce and Ocean models
328     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
329     - land: change Evaporation of snow
330     - aim with thSIce: fix bug in snow-precip.
331    o changes to calc_gw.F
332     - bug fix for w^2 term near the bottom boundary
333     - (hopefully) improve the lateral slip boundary condtions for use with
334        partial/looped cells
335      - because the bug fix changes two verification experiments anyway (exp5
336        and plume on slope), change the lateral boundary condition from half slip
337        to the value of no_slip_sides
338    o ebm package wasnt quite up to the parallel task. Fixed that.
339    o Adjoint of EBM package + verification
340      * TLM OK
341      * ADM not sufficient accuracy yet (needs further testing)
342    
343    checkpoint53b_post
344    o Commiting new energy balance model to repository
345      * package is pkg/ebm
346      * verif. is verification/global_ocean_ebm
347      * references are in ebm_driver.F
348    C      * X. Wang, P. Stone and J. Marotzke, 1999:
349    C        Global thermohaline circulation. Part I:
350    C        Sensitivity to atmospheric moisture transport.
351    C        J. Climate 12(1), 71-82
352    C      * X. Wang, P. Stone and J. Marotzke, 1999:
353    C        Global thermohaline circulation. Part II:
354    C        Sensitivity with interactive transport.
355    C        J. Climate 12(1), 83-91
356    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
357    C        Destabilization of the thermohaline circulation
358    C        by atmospheric eddy transports.
359    C        J. Climate 7(12), 1870-1882
360    o Will need long integration testing.
361    checkpoint53b_pre
362    
363    o created pkg/mom_common in preparation for variable viscosity code
364    o renamed and split ini_mnc_io
365    o pkg/land: only liquid water can diffuse or run-off
366    o AIM using land: soil wetness availability account for snow
367    o added printMapIncludesZeros to EEPARMS namelist
368    
369    checkpoint53a_post
370    o restore TAMC compatiility for exf_constants.h
371      (no usage of _d in .h)
372    o Additional storing in KPP in an attempt to fix
373      TAMC problem with adjoint of KPP code.
374      (no success...)
375      Identical code works fine with TAF.
376    o Fixed verification/natl_box_adjoint experiments.
377      Initial conditions for Experiments 4 and 5 are now
378      set to "SEAICE_initialHEFF=0", which is more reasonable,
379      and hence gives results closer to that of Experiment 2.
380      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
381    
382    checkpoint53
383    o stable checkpoint with up to date adjoint
384      TLM tests only run for 1st grdchk at the moment. Its unclear if
385      this is a code problem or a problem with resetting code for g_
386      variables that is being autogenerated wrong.
387      Otherwise:
388       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
389       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
390         are both still in chaos following their security messes.
391    
392    checkpoint52n_post
393    o various build (mostly genmake2) changes including:
394      - ability to build/run more easily within Cygwin and MacOS X
395      - more complicated Makefiles with a stronger dependence on Gnu Make
396    o pkg/seaice modifications
397      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
398        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
399        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
400      - changed proxy for geostrophic velocity and updated
401        verification/lab_sea/results/* accordingly
402      - removed ADI dynamic solver from pkg/seaice
403      - replaced all occurrences of 1/CSTICE or 1/CSUICE
404        they caused a segmentation fault under certain circumstances
405      - removed unused field WATR
406    o bug fix in exf-package:
407      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
408         now reflect that.
409    o small fixes in the cal-package:
410      - set reference date to first of January for the 'model'-calendar
411      - failing of cal_CheckDate in cal_FullDate now actually results in a
412        warning
413    o small modifications in exf-package to increase flexibility:
414      - change climtempfreeze from a constant to a runtime parameter that
415        is specified in data.exf_clim (default = -1.9)
416      - introduce runtime parameter windstressmax (default = 2.0) that is
417        specified in data.exf
418    o fix in pkg/thsice:
419      - update Evap (Tsf changes) to be consistent with Latent heat flux
420      - maintain snow precipitation unchanged (even if Tsf >=0).
421     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
422    
423    checkpoint52m_post
424    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
425      this does not change any of the results, because myIter=0 in swfrac always
426      lead to jwtype=2 (the default anyway), but the call makes little sense
427      as a default
428    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
429    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
430      atmospheric model (AIM) to use it ; add a "slab ocean" component.
431    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
432    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
433    o extending useSingleCpuIO option to work with new exch2 I/O format
434      - old-style, missing-tile I/O is still accessible by defining CPP
435        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
436    o monitor package can write to NetCDF files and/or STDOUT
437    o fix re-definition bug in MNC_GRID_INIT_ALL()
438    o doc/api_reference added
439      - a framework for building an API Reference Manual using all
440        the "protex" comments embedded in the code
441      - see pkg/generic_advdiff, pkg/mnc for examples
442    o MNC:
443      - make myThid the last argument for all subroutines
444      - new default for the grid files: NO halos
445      - add useMNC and other run-time flags
446      - separate per-file-group handling of the unlimited dimension
447      - early initialization of MNC w/ flags read at the eeboot stage
448        and lookup tables set in initialize_fixed
449      - write all MNC output to a freshly-created directory
450    o thermodynamics sea-ice (thsice) is now tested with testreport.
451    o test exp. advect_cs: use the standard cs32 grid ; update output.
452    o Added functionality to grdchk:
453      pick global i,j,k position (or nearest wet) where to perform check.
454    
455    checkpoint52l_post
456    o new land formulation:
457      a) use ground enthalpy as prognostic variable to ensure exact
458         energy conservation.
459      b) account for water temperature and for latent heat of freezing
460         in all processes (rain, run-off, ground storage)
461      c) compute surface and ground temperature implicitly.
462    o aim_v23 modification for new land model:
463      a) Treat separately land / ocean / sea-ice surface fluxes
464         to allow implicit computation of land & sea-ice surface temp.
465      b) add snow precipitation.
466    checkpoint52l_pre
467    
468    o fix problem (when 1 tile is empty) in min/max monitor.
469    o fix bug in timeAve (u,vZetatave in common block)
470    o no restoring terms under ice for pkg/seaice
471    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
472    o bug fix for pkg/seaice pickups
473    o change MNC call locations and add coordinate attributes
474    o mask vorticity at the corner ; affects global_ocean.cs output
475    o fix ini_curvilinear_grid ; test CS experiments with mpi
476    o aim.5l_cs: modify sea-ice fraction input file ; update output
477    o exf: Adding simple range check routine for exf fields after read
478    
479    checkpoint52k_post
480    o removed top-level directory "diags"
481      - we migrated these functions to pkg/timeave a long time ago
482    o fixed bug introduced in pkg/monitor
483    o accuracy ctrlprec = 32 insuffient for gradient checks using
484      averaged fields (I/O via cost_averages)
485      -> use ctrl.h in active_file*.F to control I/O precision.
486    o paramter list of CALL ADTHE_MAIN_LOOP
487    o added initial do_the_model_io to ecco
488    o set all ...Freq to zero after cost_final
489      taveFreq, dumpFreq, pChkptFreq
490    o MAIN and ECCO differentiability restored
491    
492    checkpoint52j_post
493    o fix nchklev in tamc.h for global_ocean...
494    o Bringing flow and store directives up-to-date
495    o Really weird thing!
496      call do_the_model_io from the_main_loop with parameters
497      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
498      TAF places a faulty re-call of initialise_varia
499      after cost_final call which should not be there!
500    checkpoint52j_pre
501    
502    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
503      error messages
504    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
505    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
506      debug output
507    o modfied mdsio_writefield.F to handle non-global files under exch2
508    o update AIM Cubed-Sphere exp (aim.5l_cs):
509      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
510    o update AIM Equatorial Channel exp:
511      use standard aim_v23 pkg and change the SST fields to be more realistic.
512    o globalFile now works with exch2
513    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
514      mon_vort3.F to make exch2 friendly with >1 tile per cube face
515    o limit timeave output for hi-res integrations
516    
517    checkpoint52i_post
518    o removed CPP_EEOPTIONS.h from verification/*/code
519    o updated the tiling for global_ocean_pressure
520    checkpoint52i_pre
521    
522    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
523      the old pkg/aim).
524    
525    checkpoint52h_pre
526    o shortened offending lines in exch2_send_rx?.template
527    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
528    o genmake2: add build & execute test for NetCDF code
529    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
530      old grid files, moved CPP_EEMACROS.h to pkg/exch2
531    o added useSingleCPUIO flag to monitor.F and mon_out.F
532    o added temporary hack for sea-ice dynamics on the cube:
533      metric terms are ignored and it is assumed that
534      there is no sea-ice on cube faces 1, 2, 4, and 5.
535    
536    checkpoint52f_post
537    o added exch2 cube routines to pkg/exch2
538    o modified hs94.cs-32x32x5 to use it
539    o added new grid files to hs94.cs-32x32x5
540    checkpoint52f_pre
541    
542    checkpoint52e_post
543    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
544      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
545    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
546      to work with implicit vertical advection and AB ;
547    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
548    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
549     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
550    checkpoint52e_pre
551    
552    o fix bug in impldiff when Nr=1 or Nr=2.
553    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
554    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
555    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
556      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
557    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
558    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
559    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
560    
561    checkpoint52d_post
562    o re-tiled many expts to allow comparison in multi-processor mode
563      - updated output accordingly
564      - changed hs94.128x64x5 to use intial T from file rather than use the
565        random number generator
566    o add infrastructure in model routines for fizhi and gridalt packages
567    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
568    o changes to permit hi-res, cubed-sphere, configuration
569      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
570      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
571      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
572        of surface winds for the cube
573      (A verification experiment, based on global_ocean.cs32x15, but with
574       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
575       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
576       complete with example surface forcing files and matlab scripts to look
577       at the output and compare it with that of global_ocean.cs32x15.)
578    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
579       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
580       to conform to the common rule.
581    o check-in the first version of the coupler + interfaces for multi-components
582       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
583       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
584       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
585       - ocean and atmos. share the same horizontal grid (no interpolation).
586       - exchanges between component and coupler is done in forward_step
587    o new verification experiment, cpl_aim+ocn:
588       coupled ocean - AIM atmosphere on cs32 grid.
589    
590    checkpoint52d_pre
591    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
592    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
593    
594    checkpoint52c_post
595    o Fixing OPTIONS files for use of exf:
596      - ALLOW_ECCO not needed
597      - ECCO_CPPOPTIONS.h should not be included from
598        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
599        as has been the case in the past
600      - All cal/exf related options are currently set in
601        single header file. Should remain so until we
602        agree on a consistent new policy.
603    o Removed all CPP options for cal package.
604      cal has no more CPP options.
605    o modified STOREs in GAD_ADVECTION
606    o corrected key comp. for passkey
607    
608    checkpoint52b_post
609    o new version: "thsice" of thermodynamic sea-ice pkg:
610     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
611     - modify fluxes but do not change theta directly;
612     - light cleaning of bulk_force pkg (still needed with thsice).
613     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
614       + output_thsice.txt to test thsice & bulk_force pkgs.
615    o put back grid & coriolis monitor output.
616    checkpoint52b_pre
617    
618    o call "do_the_model_io" at the beginning (=> dump initial state)
619    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
620    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
621      (need info on NUMBER_OF_PTRACERS)
622    o missing PTRACERS headers in some routines
623    o default tamc.h in pkg/autodiff supposed to crash
624      to ensure proper customization
625    
626    checkpoint52a_post
627    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
628      - moved surfaceTendencyTice from pkg/seaice to main code
629      - subroutine FREEZE_SURFACE now limits only surface temperature
630        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
631        => new output.txt for global_ocean.cs32x15 & global_with_exf
632      - keep the old version of FREEZE for backward compatibility;
633        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
634      - corresponding modifs for TAF directives
635    o added surface flux output variables to TIMEAVE_STATVARS
636    o time-averaged output for pkg/ptracers
637    o fix problem with ECCO-related divided adjoint
638      snapshot file was missing some ad-variables,
639      but no warning issued by TAF
640    
641    checkpoint52a_pre
642    o some bug fixes for #undef REAL4_IS_SLOW
643    
644    checkpoint52 = ecco_c52_e35
645    o after testing adjoints of checkpoint51u_post
646    
647    checkpoint51u_post
648    o this is the post-merge tag of the ecco-branch
649      (needs another clean checkout and re-testing)
650    o various natl_box_adjoint configs and results
651      but no input fields
652    o obcs adjoint not yet merged!
653    o adding ECCO global 1x1 and 2x2 degree configs
654    o updated/extended some store directives for seaice
655    o pkg/ecco now containes ecco-specific part of cost function
656    o top level routines the_main_loop, forward_step
657      supersede those in model/src/
658      previous input data.cost now in data.ecco
659      (new namelist ecco_cost_nml)
660    o in ctrl/ cleaned some cross-dependencies and updated CPP options
661    
662    checkpoint51t_post
663    o this is the pre-merge tag of the ecco-branch
664    
665    checkpoint51s_post
666    o cleanup: removed various obsolete #define-s
667    o pkg/grdchk
668      - renamed 'ph-grd 3' to 'grad-res'
669      - merged from ecco-branch
670        (remaining bug fixes for obcs gradient checks)
671      - additional high-precision output for testreport
672        (grep for 'precision_grdchk_result')
673    
674    checkpoint51r_post
675    o cleaned up or removed CPP_OPTIONS.h files
676    o updated results for some of the tests to reflect the new
677      optfiles (-ieee: -O0 instead of -O3)
678    
679    checkpoint51q_post
680    o cd_code:
681      - moved cd_scheme.F -> cd_code_scheme.F
682      - separate read_checkpoint from cd_code_ini_vars.F
683      - separated cd_code part from write_checkpoint
684      - updated AD_SOURCE, generated .flow
685      - added CD_CODE_VARS.h to the_main_loop
686      - Moving cd_code specific store dir.s to pkg/cd_code
687    o ctrl package totally restructured
688      - pack/unpack now optional and decoupled from
689        xx_/adxx_ I/O
690      - ctrl_pack/unpack cleaned
691        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
692      - confined inclusion of AD_CONFIG.h to where necessary.
693    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
694    
695    checkpoint51p_post
696    o create initial cd_code package
697      - WARNING: the initialization of fields within packages
698        is broken because INI_FIELDS (where READ_CHECKPOINT is
699        called) is called *before* PACKAGES_INIT_VARIABLES.
700        This seems to be backwards since
701        1) its important to initially zero the entire field including
702           the "halo" region
703        2) zeroing needs to be done *before* reading pickup info
704           and the pickup call might or might not happen in any
705           particular run
706      - this needs an overhaul for R2
707    o cleanup verification/*/code/GMREDI_OPTIONS.h
708    o cleanup testreport
709    
710    checkpoint51o_post
711    o bringing AD-related verif's up to date with genmake2
712      - carbon/
713      - global_ocean.90x40x15/
714      - hs.94.1x64x5/
715      - (front_relax/ )
716    o (more) consistent directory structure for AD-related verif.'s
717    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
718    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
719    o bug fix in find_alpha.F for MDJWF:
720      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
721        change rho -> rho-rhoConst
722      - replace call find_rho to find_rhonum
723    o initialisation of rFlx extended to full array (required by TAF)
724      and shifted to thermodynamics
725    o removed PTRACERS.h in ptracers routine
726    o added surfacetendencyPtr to S/R parameter list pracers_forcing
727    o Correcting initialisations for fVerU, fVerV.
728    o helping TAF to recognize dependency on kUp for
729      fVerU, fVerV
730    o Replacing delZ by delR in pkg/ctrl/
731    checkpoint51o_pre
732    
733    o undid all of cp51 pending some cleanups and discussion
734    o added the [#include "AD_CONFIG.h"] statement to all files that need
735       it for adjoint/tl #defines
736     o re-worked the build logic in genmake2 to support AD_CONFIG.h
737     o removed tools/genmake since it no longer works
738    
739    checkpoint51n_post
740    o modifications to make FREEZE flux visible to pkg/kpp
741      - moved surfaceTendencyTice from pkg/seaice to main code
742      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
743      - subroutine FREEZE now limits only surface temperature
744        (this means new output.txt for global_ocean.90x40x15,
745         global_ocean.cs32x15, and global_with_exf)
746    o added surface flux output variables to TIMEAVE_STATVARS
747    
748    checkpoint51n_pre
749    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
750    o added [#include "AD_CONFIG.h"] to all files that use the following
751      defines:
752      - ALLOW_ADJOINT_RUN
753      - ALLOW_TANGENTLINEAR_RUN
754      - ALLOW_ECCO_OPTIMIZATION
755    
756    checkpoint51m_post
757    o incorporating changes to get TAMC/TAF working in genmake2
758      - added new TAMC/TAF targets to the Makefile
759      - various cleanups related to package handling
760      - these changes should have no impact on the forward model
761    
762    checkpoint51l_post
763    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
764     - faster algorithm for cal_addtime.F
765     - higher precision arithmetic, where needed
766     - pkg/exf *startdate variables changed from calendar date to
767       model integration time
768    
769    checkpoint51l_pre
770    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
771    o enable to apply restoring on S & T only in a latitude band.
772    o update output (external_forcing_surf modif. change truncation errors)
773       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
774    
775    checkpoint51k_post
776    o change default to: useNHMTerms=.FALSE.
777     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
778       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
779     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
780        exp1, ideal_2D_oce
781     - change data file of oceanic exp (leave the results unchanged for now)
782       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
783    o set gravitySign automatically according to the vertical coordinate used
784      (and change sign: back to "logical" value: +1 when R increases downward)
785    o added an include barrier to the default CPP_OPTIONS.h and
786      removed the #include "PACKAGES_CONFIG.h" from it
787    o fix a bug in mom_fluxform (from chk51j_post)
788    
789    checkpoint51j_post
790    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
791    o adjusted some flow directives (dynamics, thermodynamics)
792    o added cubed-sphere case to test cost function
793    o heckpoint_lev?_directives.h now include
794      pkg-specific directives, whenever those are enabled.
795    o Moving pkg-specific flow directives to corresponding pkg
796      Moving pkg-specific differentiation list to corresponding pkg
797      Moving pkg-specific checkpoint-lev storing to corresponding pkg
798      ---> conventions are
799           - pkg_ad.flow
800           - pkg_ad_diff.list
801           - pkg_ad_check_lev?_dir.h
802    
803    checkpoint51i_post
804    o merge of the branch-genmake2
805      - knowingly breaks the older genmake
806      - automatic generation of all ALLOW_${PKG_NAME} defines
807      - new testreport supersedes older testscript
808    o large number of package inclusion and header cleanups
809    checkpoint51i_pre
810    
811    o new output for adjoin of global ocean vector invariant
812    o fix for checkpoint of thermodynamic seaice and bulk_force
813    o Steph gchem various cleanups
814    
815    checkpoint 51h_pre
816    o fixed some single quotes
817    o modify gchem pkg to be more versatile
818    o modifications to clean up dic pkg
819    o add pkg/cfc
820    
821    checkpoint51g_post
822    o provide links for ARPACK and ADM*TLM
823    o start removing verification/vero/
824    o update AD-related stuff
825      (in particular some IF-statements in model/src/ routines)
826    o adding to verification/global_ocean.90x40x15/ adjoint of
827      vector invariant setup
828    
829    checkpoint51f_post
830    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
831    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
832      of tracer Green's fucntions for ocean inversion project.
833    
834    checkpoint51f_pre
835    o Added on-the-fly spatial interpolation capability
836        "USE_EXF_INTERPOLATION" to pkg/exf.
837      - This is a temporary Cartesian-grid hack until
838        the super-duper ESMF coupler becomes available.
839      - See verification/global_with_exf/README for usage example.
840      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
841        flags and modified pkg/seaice accordingly.
842    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
843        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
844        non-local transport term.
845    
846    checkpoint51e_post
847    o pkg/mom_vecinv:
848      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
849      - add time-ave diagnostic of vorticity advection.
850    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
851    o atmospheric geopotential: - include water vapor effect;
852                                - use p^kappa in p* scaling.
853    o land pkg: read initial state from files.
854    o AIM : add stratospheric drag in the upper level
855    
856    checkpoint51d_post
857    o change function ILNBLNK (=> last non-blank char.) to return zero
858      (instead of the string length) when the string. char is empty
859    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
860    o modif's to restore TAMC compatibility
861      - avoid "_d" constructs in PARAMETER declarations
862      - avoid interrupting lines by comment lines
863    o Use cluster local disks for purely local I/O
864      vs. globally visible disks needed for ctrl stuff
865      (merged from ecco-branch)
866      - new active_file_loc... and mdsio_..._loc routines
867      - affected packages: autodiff, ctrl, grdchk, mdsio
868    
869    checkpoint51c_post
870    o introducing integer flag debugLevel
871      - debLevZero: suppress all output
872      - debLevA: standard
873      - debLevB: equivalent to current debugMode=.TRUE.
874    o introducing pathname variable mdsioLocalDir for mdsio
875      that can be specified at runtime
876      (relevant for cluster I/O to local disk)
877    `
878    >>>checkpoint51b_post
879    adjoint of ptracers
880    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
881    o extended state in checkpoint_lev?, etc.
882    o alternative ctrl/cost with tr1 or ptracer
883    o new comlev1_bibj_ptracers
884    o new ptracers.flow
885    o made ptracers_forcing same as external_forcing_s
886    o added verification for adjoint with ptracers
887      - adm. grdchk fail so far
888      - tlm. grdchk OK
889      - checked tapelev/comlev recomputations: OK
890    <<<checkpoint51b_pre
891    
892    checkpoint51a_post
893    o added code for biogeochemistry package
894      - new pkgs: dic, gchem
895      - new subroutine in ptracers
896    o modify code for biogeo packages
897      - in model/src and pkg/ptracers
898    
899    checkpoint51
900    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
901      - autodiff, ctrl, exf, grdchk, seaice
902      kept separate packages
903      - cost, ecco, obcs
904    o updating verification/internal_wave, verification/lab_sea
905      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
906    
907    checkpoint50i_post
908    o Preparing next differentiable checkpoint and sync
909      of MAIN vs. ecco-branch
910      - 1st step: this one is differentiable
911      - 2nd step: next(! not this) checkpoint will have updated packages
912                  from ecco-branch)
913    
914    checkpoint50h_post
915    o new package "land": provide surface BC for AIM.
916    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
917    o AIM: use true log-P extrapolation for near surface temp (= as in
918        F.Molteni paper) ; update aim.5l_cs output.
919    o New variable in PARM03 for more flexible pickups
920    o somewhat cleaned package initialisation sequence for
921      ctrl/ cost/ ecco/ in packages_... routines
922    
923    checkpoint50g_post
924    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
925      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
926      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
927        made the default because of faster convergence than ADI
928    
929    checkpoint50f_post
930    o exf totally restructured
931      - replaced all exf_set_ routines by one generic exf_set_gen.F
932        and made sure it's still differentiable
933      - split exf_getffields.F into new exf_bulkformulae.F
934      - exf_inscal_/exf_outscal_ suffixes consistent with field names
935      - updated adjoint/makefile and relevant verif. accordingly
936    
937    checkpoint50f_pre
938     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
939          + change Evap over land. (update aim.5l_cs output)
940     o added missing .cvsignores and made uniform across expts
941     o changed configuration of tidal_basin_2d expt
942     o added pkg/debug functions for tracing code in fatal crashes
943     o tidied pkg/monitor to use MONITOR_OPTIONS.h
944     o new fn in pkg/monitor to stop model if solution grows too big
945     o removed lots of single quotes from comments
946    
947    checkpoint50e_post
948    o make KPP work with PTRACERS
949     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
950       nearly a copy of kpp_transport_s
951     - there is no analogue to SurfaceTendencyS, so I have to use
952       gPtr(of the surface layer) instead
953    o add a new platform SunFire+mpi (SunFire 15000) to genmake
954    checkpoint50e_pre
955    
956    checkpoint50d_post
957    o change kpp output from multiple-record state files to single-record state
958      files analogous to write_state.F
959    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
960      analogous to the cg2d-related output.
961    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
962      so that writing to internal file fn (with length 512) fails.
963    checkpoint50d_pre
964    
965    checkpoint50c_post
966    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
967    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
968    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
969    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
970    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
971    
972    checkpoint50c_pre
973    Merging from release1_p13:
974    o bug fix for pkg/seaice dynamic solver
975    o Added SEAICE_initialHEFF to pkg/seaice
976    
977    checkpoint50b_post
978    o store u*,v* in gU,V instead of in guNm1,gvNm1
979    o in order to put the momForcing out of the Adams-Bashforth:
980      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
981      to timestep.F
982    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
983    o re-generate output for highly sensitive test-exp:
984       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
985    
986    checkpoint50b_pre
987    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
988    o corrected CPP option mismatch in exf_Bulk... functions for case
989      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
990    
991    checkpoint50a_post
992    o Bug fix for merging between c50 and KPP.
993      ikey was passed from thermodynamics to kpp_calc via
994      common block rather than being recomputed in kpp_calc,
995      in contradiction with new key itdkey.
996      New key ikppkey created, and tamc.h headers updated.
997    
998    checkpoint50
999    - 2nd step of merge with ecco-branch:
1000      merge changes in ecco-branch back into main trunk
1001    - bug fix in find_alpha
1002    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1003    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1004    - merged some sliced AD support routines
1005    
1006    checkpoint49
1007    merged from ecco-branch:
1008    o exf:
1009      - Enable initialisation of forcing fields to constant
1010        (runtime) values.
1011      - in exf_getffields.F
1012        Reduce i-/j-loop to interior domain, discarding overlaps.
1013        That also fixes wrong TAF-key computations for key_1, key_2
1014        with bulf formulae.
1015      - exf_init.F modify #ifdef for exf_init_evap
1016      - exf_getffieldrec.F, ctrl_getrec.F
1017        The following INT-usages are not safe:
1018          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1019          fldcount = int(fldsecs/fldperiod) + 1
1020        and were modified.
1021    o autodiff: checkpoint_lev...
1022      - updated storing for bulk formulae (some arrays were missing)
1023      - added state for seaice package
1024      - synchronized with main branch
1025    o DIVA:
1026      Modif.s in
1027      - the_main_loop.F
1028      - the_model_main.F
1029      and added cost_final_restore.F cost_final_store.F
1030      o With these changes, it is possible to fully separate
1031        the first forward run to compute the cost function (mdthe_main_loop)
1032        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1033        into separate model executions.
1034        This enables better tuning of DIVA to given queue sizes.
1035      o Loss of cost function value in consecutive DIVA runs is
1036        fixed by storing to 'costfinal' file.
1037      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1038        beginning/end of adjoint integration is accounted for.
1039      The current changes apply to TAF-1.4.26.
1040      TAF has one remaining bug, requiring one manual change
1041      (see MITgcm manual).
1042    o cal: synchronized between MAIN and ecco-branch
1043    
1044    checkpoint48i_post
1045    o Changes to restore differentiability of code w.r.t. previous tag
1046      (mostly adding new routines to make list and replacing
1047      pressure by totPhiHyd).
1048    o Updated and merged grdchk package
1049      - has both ADM and TLM checks
1050      - works for single- and multi-proc.
1051      - output cleaned
1052      - worked successfully for parallel DIVA
1053    o genmake:
1054      - Adding -platform=SP4
1055      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1056    o Modif. for DIVA:
1057      ctrl_unpack should not be called in intermediate DIVA interval.
1058      (similar thing would apply for active files such as
1059      tbar, sbar, psbar, which should not be reinitialised;
1060      only relevant for ecco-branch)
1061    
1062    checkpoint48h_post
1063    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1064    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1065    o Added SEAICE_initialHEFF to pkg/seaice
1066    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1067    
1068    checkpoint48g_post
1069    --- EOS:
1070    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1071      store total Potential in totPhyHyd for diagnostics & EOS.
1072    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1073    --- Pressure/geopotential gradient:
1074    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1075    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1076      ( changes results of global_ocean_pressure )
1077    o NLFS + z-coord.: add eta*Rho' contribution.
1078    o accurate phiHyd when using interface-W at the middle between 2 centers
1079     ( changes results of ideal_2D_oce )
1080    o includes r* 2nd term in potential gradient.
1081    
1082    checkpoint48f_post
1083    Merging from release1_p12:
1084    o Modifications for using pkg/exf with pkg/seaice
1085      - improved description of the various forcing configurations
1086      - added basic radiation bulk formulae to pkg/exf
1087      - units/sign fix for evap computation in exf_getffields.F
1088      - updated verification/global_with_exf/results/output.txt
1089    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1090      (SBO) core products, including oceanic mass, center-of-mass,
1091      angular, and bottom pressure (see pkg/sbo/README.sbo).
1092    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1093      to avoid negative values in shallow regions.
1094      - updated verification/natl_box/results/output.txt
1095      - updated verification/lab_sea/results/output.txt
1096    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1097    o Added useSingleCpuIO option (see PARAMS.h).
1098    o Updated useSingleCpuIO option in mdsio_writefield.F to
1099      work with multi-field files, e.g., for single-file pickup.
1100    o pkg/seaice:
1101      - bug fix in growth.F: QNET for no shortwave case
1102      - added HeffFile for specifying initial sea-ice thickness
1103      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1104    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1105      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1106    o pkg/seaice:
1107      - adjoint-friendly modifications
1108      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1109    
1110    checkpoint48e_post
1111    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1112    o dynamics: change definition of computational domain & adapt mom_fluxform
1113      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1114    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1115        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1116        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1117        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1118        inverted_barometer solid-body.cs-32x32x1
1119      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1120    
1121    checkpoint48d_post
1122    o in preparation for r*:
1123     a) use pre-computed gradient of hydrostatic potential:
1124        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1125     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1126        => affects results of glob_oce_pressure (different truncation error)  
1127      update output.txt of ideal_2D_oce & global_ocean_pressure
1128    
1129    checkpoint48d_pre
1130    o in preparation for r*:
1131      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1132      pass the 2 comp. of the grad. as arguments to momentum S/R.
1133      but for the moment, only used if it does not change the results.
1134    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1135    
1136    checkpoint48c_post
1137    Modifications in treatment of initial flux forcing controls
1138    to avoid extra storing of flux fields.
1139    
1140    checkpoint48c_pre
1141    o Added tidal_basin_2d experiment (currently 1D!)
1142    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1143    
1144    checkpoint48b_post
1145    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1146     (modification to pressure gradient not yet implemented)
1147    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1148      (for U & V) that are used for vertical advection of momentum.
1149    
1150    checkpoint48a_post
1151    o In preparation for r*, use temp. array to compute vertical transport
1152       in flux-form momentum pkg. => change results of few test-exp.
1153      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1154                        lab_sea, natl_box & plume_on_slope
1155    
1156    checkpoint48
1157    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1158    
1159    checkpoint47j_post
1160    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1161    o moved adexch from forward_step to addummy_in_stepping
1162    o added exch in ctrl_map_...
1163    o aveFreq.=0. at end of cost_final to avoid overwrite in
1164      reverse checkpointing loop
1165    o Yet more changes in gmredi:
1166      * adgmredi_calc_tensor
1167        avoiding all recomputation of gmredi_slope_limit
1168      * adgmredi_x/y/rtransport
1169        added flag for excessive storing to avoid recomp. of
1170        u/v/rtans, dTdx/y/z
1171        -> this is not really necessary and very memory-consuming
1172      * adgmredi_slope_psi:
1173        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1174      * gmredi_slope_limit
1175        re-activated full calculation of taperfct for case 'ac02'
1176    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1177    
1178    checkpoint47i_post
1179    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1180    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1181      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1182    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1183    o gmredi: fix few bugs.
1184    
1185    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1186    This will be a good checkpoint to plug into the ecco-branch.
1187    o few modif.'s to get latest version adjointed
1188      (mainly kick out code in ini_linear_phisurf)
1189    o modif's to run adjoint with exactConserv
1190    o case GM_BOLUS_ADVEC should be cleaned
1191      S/R gmredi_slope_psi should be cleaned
1192    o verification/carbon now has exactConserv=.TRUE.
1193    
1194    checkpoint47g_post
1195    o time-average AIM output: becomes independent from statvars time-average
1196      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1197    o After TAF bug fix:
1198      Tested adjoint of gmredi package.
1199      Tests were done with checkpoint47 rather than with latest
1200      checkpoint47f_post since the latter is broken for the adjoint
1201      verification/carbon/ contains both ADM and TLM gradient checks.
1202    Here they are, before they get changed/lost/stolen.
1203    Mostly modif.'s to fix numerical sensitivities.
1204    Gradient checks OK for
1205    - GM_taper_scheme:
1206      * clipping
1207      * ac02
1208      * linear
1209      * glw91
1210      * dm95
1211      * ldd97
1212    - GMREDI_OPTIONS:
1213      * GM_VISBECK_VARIABLE_K
1214      * GM_NON_UNITY_DIAGONAL
1215      * GM_EXTRA_DIAGONAL
1216      * GM_BOLUS_ADVEC
1217    in conjunction with data.gmredi parameters to be checked in
1218    in a few minutes under verification/carbon/code/
1219    
1220    checkpoint47f_post
1221    Merging from release1_p10:
1222    o modifications for using pkg/exf with pkg/seaice
1223      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1224        and SEAICE_EXTERNAL_FLUXES
1225      - pkg/exf CPP options EXF_READ_EVAP and
1226        EXF_NO_BULK_COMPUTATIONS
1227      - usage examples are Experiments 8 and 9 in
1228        verification/lab_sea/README
1229      - verification/lab_sea default experiment now uses
1230        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1231    
1232    checkpoint47e_post
1233    o created a tag prior to creating a branch
1234    
1235    checkpoint47d_post
1236    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1237      at the bottom boundary had an erroneous half slip boundary condition
1238    o added bottom drag and no slip boundary condition capabilities to
1239      oceanic pressure coordinates code
1240    o added new verification experiment global_ocean_pressure, this experiment is
1241      also described in the tutorial section of the manual
1242    checkpoint47d_pre
1243    
1244    checkpoint47c_post
1245    o Added a verification experiment for a global cubed-sphere ocean run
1246      -  verification/global_ocean.cubed32x32x30
1247      -  uses pkg/therm_seaice and pkg/bulk_forcing
1248    
1249    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1250    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1251      when using P-coordinate; only implemented for atmospheric config.
1252    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1253      NOTES: requires option NONLIN_FRSURF to be "#define".
1254    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1255    
1256    checkpoint47b_post
1257    Merging from release1_p9:
1258    o pkg/seaice
1259      - removed GOTO's and added taf directives
1260      - double precision constants to reduce the g77 (Linux)
1261        to F77 (SGI) differences reported in release1_p8
1262    o tools/genmake
1263      - added SGI options
1264    o verification/testscript
1265      - updated to that of checkpoint47a_post
1266    o verification/global_ocean.90x40x15/input/eedata
1267      - modified for SGI f77 compatibility
1268    o verification/lab_sea
1269      - added description of sea-ice model
1270      - added missing matlab routines
1271      - added test of thermodynamics parallelization
1272    
1273    checkpoint47a_post
1274    o new pkg: aim_v23
1275     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1276       for now, keep the same surface forcing as before.
1277     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1278     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1279     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1280    o add diagnostic of surface correction term in monitor output
1281    
1282    o bulk_force and therm_seaice
1283    - Two packages:  bulk_force (Bulk forcing)
1284      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1285    - Earlier integration from Stephaine Dutkiewicz
1286      and Patrick Heimbach.
1287    - Two ifdef statements for compile time,
1288       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1289    
1290    checkpoint47
1291    differentiable version of checkpoint46n_post
1292    o bug fix in quasihydrostaticterms
1293    o * "clean" adjoint code (in terms of extensive recomputations)
1294        can now be obtained for all GMREDI options (i.e. for
1295        - GM_VISBECK_VARIABLE_K
1296        - GM_NON_UNITY_DIAGONAL
1297        - GM_EXTRA_DIAGONAL
1298        - GM_BOLUS_ADVEC )
1299      * However, wrong gradient check problem remains unsolved.
1300      * New CPP options have been introduced for different
1301        tapering schemes
1302    o external_fields_load now part of differentiation list
1303    o pressure needs multiple storing;
1304      would be nice to have store_pressure at beginning or
1305      end of forward_step, e.g. by having phiHyd global (5-dim.)
1306      (NB: pressure is needed for certain cases in find_rho,
1307      which is also invoked through convective_adjustment).
1308    o recomputations in find_rho for cases
1309     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1310    o #define ATMOSPHERIC_LOADING should be differentiable
1311    o ini_forcing shifted to begining of initialise_varia
1312    o Incorporating QNVS line search routines into MITgcm
1313      (this is separate code, and therefore not under pkg)
1314      lsopt/, optim/
1315    o Updated verification/carbon/
1316      - #define GM_VISBECK_VARIABLE_K
1317      - GM_taper_scheme    = 'ldd97'    
1318    
1319    checkpoint46n_post
1320    Merging from release1_p8:
1321    o verification/natl_box:
1322      updating new external_fields_load routine
1323    o New package: pkg/seaice
1324      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1325      The sea-ice code is based on Hibler (1979-1980).
1326      Two sea-ice dynamic solvers, ADI and LSR, are included.
1327      In addition to computing prognostic sea-ice variables and diagnosing
1328      the forcing/external data fields that drive the ocean model,
1329      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1330      The implied surface heat flux is then stored in variable
1331      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1332      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1333      non-local transport term.  Because this call precedes model
1334      thermodynamics, temperature under sea-ice may not be "exactly" at
1335      the freezing point by the time theta is dumped or time-averaged.
1336      N.B.: fairly large differences in accuracy occur across
1337            different platforms/compilers; comparison between
1338            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1339            generated output gives:
1340       T           S           U           V
1341      C D M    c        m  s        m  s        m  s        m  s
1342      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1343      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1344      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1345    
1346      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1347    o GAD:
1348      - generated new common blocks to account for call of
1349        same gad routines with differing traceridentities
1350        (needed to modify tracerIdentity indices in GAD.h)
1351      - generated separate common blocks for case useCubedSphereExchange
1352        (Department of Futurology)
1353      - parameter lists to gmredi_?transport: added tracerIdentity
1354      - added new key indices to tamc.h
1355    o external_fields_load:
1356      - added this routine to TAF list
1357      - needed to make some common blocks global and additional storing
1358        along the same lines as exf package (checkpoint_lev?_directives.h)
1359    o exf:
1360      updated external forcing package
1361      - bug fixes carried over from ecco-branch
1362        (missing OBCS_OPTIONS.h in two routines)
1363      - enable easy to use "no forcing".
1364      - added exf I/O for atmospheric loading
1365      - added exf I/O for runoff data
1366      - transfered scaling between exf <-> MITgcm to exf namelist
1367    o Adding new verification experiment global_with_exf.
1368      This verification experiment is almost identical to the
1369      global_ocean.90x40x15 experiment, except that it uses
1370      the exf (and cal) package instead of the
1371      external_fields_load routine (cf README file).
1372    
1373    checkpoint46m_post
1374    o modified testscript to return -- when there are no lines of "%MON" output
1375    o added new flag "quasiHydrostatic" for QH mode
1376      and new routine quasihydrostaticterms()
1377    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1378      New routine: mom_u_coriolis_nh()
1379    o fixed sign of non-hydrostatic metric terms in u and v equations.
1380      Depend on correct sign of gravitySign.
1381    o added work.pc* to .cvsignore in aim directories using ifc
1382    o introduced flag for controllin non-hydrostatic metric terms
1383    o removed gravitySign from PARM04
1384    o switched to g77/ifc from pgf77 in aim experiments
1385    
1386    checkpoint46l_post
1387    o made convective adjustment work with pressure coordinates:
1388     - changed the direction of k-loop in convective_adjustment.F for the
1389       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1390     - adjusted the reference pressure k-index in convective_adjustment.F
1391     - adjusted the convection condition in convect.F (in analogy to
1392       calc_ivdc.F)
1393     - convective_adjustment no longer computes anything on the halos
1394     - removed the warnings about negative salinity from find_rho.F and
1395       find_alpha.F; instead the new routine look_for_neg_salinity, called
1396       at the beginning of find_rho, find_alpha, and find_beta, does a
1397       check of the entire slice, if CPP-option
1398       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1399    checkpoint46l_pre
1400    
1401    checkpoint46k_post
1402    o fixed the verification/global_ocean.90x40x15 experiment:
1403     - new bathymetry (the world according to A., JMC, and M.)
1404     - new initial fields and forcing fields (*.bin files)
1405     - new POLY3.COEFFS (for the next release one should switch to a full
1406       equation of state: JMD95P or MDJWF)
1407     - fixed several errors and redundancies in the data file
1408     - experiment uses looped cells
1409     - added matlab directory with diagnostic scripts for plotting of output
1410    
1411    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1412     - read AIM physics parameters from a file (data.aimphys)
1413     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1414    
1415    checkpoint46j_post
1416    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1417    o move wVel computation at the end of the time step, in S/R integr_continuity
1418    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1419    o update timeave pkg for wVel diagnostic.
1420    checkpoint46j_pre
1421    
1422    checkpoint46i_post
1423    o Clean up AIM package (and keep the results unchanged):
1424      include CPP_OPTION and use IMPLICT NONE in all routines ;
1425      declare all the variables _RL ; use _d 0 for all numerical constants.
1426      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1427    
1428    checkpoint46h_post
1429    o cleaned up the use of rhoNil and rhoConst.
1430      - rhoNil should only appear in the LINEAR equation of state, everywhere
1431        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1432        and the dynamical equations are all divided by rhoConst
1433    o introduced new parameter rhoConstFresh, a reference density of fresh
1434      water, to remove the fresh water flux's dependence on rhoNil. The default
1435      value is 999.8 kg/m^3
1436    o cleanup up external_forcing.F and external_forcing_surf.F
1437      - can now be used by both OCEANIC and OCEANICP
1438    checkpoint46h_pre
1439    
1440     Added code to convert surface volume flux (fresh water) into
1441     a mass flux when using P coordinates in the ocean (OCEANICP).
1442     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1443    
1444    checkpoint46g_post
1445    o Include a new diagnostic variable phiHydLow for the ocean model
1446      - in z-coordinates, it is the bottom pressure anomaly
1447      - in p-coordinates, it is the sea surface elevation
1448      - in both cases, these variable have global drift, reflecting the mass
1449        drift in z-coordinates and the volume drift in p-coordinates
1450      - included time averaging for phiHydLow, be aware of the drift!
1451    o depth-dependent computation of Bo_surf for pressure coordinates
1452      in the ocean (buoyancyRelation='OCEANICP')
1453      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1454        Theta, Salinity, and Pressure in the parameter list. This routine is
1455        presently contained in find_rho.F. This routine does not give the
1456        correct density for 'POLY3', which would be a z-dependent reference
1457        density.
1458    o cleaned up find_rho
1459      - removed obsolete 'eqn' from the parameter list.
1460    o added two new verification experiments: gop and goz
1461      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1462    checkpoint46g_pre
1463    
1464    checkpoint46f_post
1465    o Enable tangent linear (forward mode) gradient checks:
1466      - extended active file handling to g_... files
1467      - added TANGENT_SIMULATION to theSimulationMode
1468      - extended grdchk package accordingly
1469    o added tangent linear setup in verification/carbon/code_ftl
1470    o added adjoint setup in verification/front_relax/code_ad
1471    
1472    checkpoint46e_post
1473    o Added new equation of state -> MDJWF
1474      - EOS of McDougall et al., 2002, JAOT, submitted
1475      - caveat: the equation of state is only valid for a smaller (more
1476        realistic?) range of values than JMD95P/Z and UNESCO
1477      - added masks to the calculation of pressure in store_pressure
1478      - added more check values for density in check_eos (ini_eos.F), some of
1479        the old check values are out of the range of the MDJWF-eos, so don't
1480        expect perfect matches for those
1481    checkpoint46e_pre
1482    
1483    checkpoint46d_post
1484    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1485      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1486      case of pressure coordinates. eosType='JMD95Z' in
1487      combination with buoyancyRelation='OCEANICP' now causes an error.
1488    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1489      in find_alpha/beta.
1490    checkpoint46d_pre
1491    
1492    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1493      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1494    
1495    checkpoint46c_post
1496    o Changes necessary for ocean in p-coordinates
1497     -  Added new buoyancy relation = 'OCEANICP'
1498     -  Added new parameters = gravitySign (this used to be contained inside
1499        the factor dRdZ which I added when we first switched to R coordinates).
1500     X GM/Redi is not compatible (yet)
1501     X bottom drag and no-slip need to be debugged.
1502    checkpoint46c_pre
1503    
1504    checkpoint46b_post
1505    o Added new equation of state -> JMD95Z and JMD95P
1506      - EOS of Jackett and McDougall, 1995, JAOT
1507      - moved all EOS parameters into EOS.h
1508      - new routines ini_eos.F, store_pressure.F
1509    o Added UNESCO EOS, but not recommended because it requires
1510      in-situ temperature (see JMD95)
1511    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1512      unesco.f to be used with POLY3
1513    checkpoint46b_pre
1514    
1515    checkpoint46a_post
1516    o Added (atmospheric) pressure loading
1517      - new field in FFIELDS.h, etc...
1518      - new cpp flag ATMOSPHERIC_LOADING
1519    o Changed hFacC to _hFacC in calc_phi_hyd.F
1520    o Added SHORTWAVE_HEATING to some files for consistency
1521    checkpoint46a_pre
1522    
1523    checkpoint46
1524    further merges from release1_p5
1525    o new ctrl package
1526      - adopted from ECCO environment to enable optimization
1527      - added Eliassen Palm fluxes to controls
1528    o added Eliassen Palm flux controls to gradient check package
1529    o cost package
1530      - Compatible with new ctrl package
1531      - added Eliassen Palm cost hooks
1532      - modif's of existing cost functions
1533    o Adjoint-related bug fixes in kpp:
1534      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1535      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1536    o autodiff package
1537      - flow directives:
1538        + new for S/R do_the_model_io
1539        + enhanced for S/R checkpoint
1540        + new gmredi.flow
1541      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1542        disable adcommon.h/g_common.h by default.
1543      - fixed problem for adjoint of global_max
1544    o modified verification/carbon/
1545    o New setup for adjoint of global_ocean
1546    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1547    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1548    o incorporated hooks for sponge layer code (external_forcing.F)
1549    
1550    checkpoint45d_post
1551    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1552    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1553      (affects plume_on_slope "cg2d" output)
1554    o add new parameter deltaTfreesurf for free-surface time stepping
1555    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1556    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1557    o change phiMin in exp1 (to agree with documentation)
1558    o add new flags:
1559     - T,S forcing inside/outside Adams-Bashforth
1560     - turn off temp,salt advection and/or forcing
1561     - for each tracer, define internal flag for multiDimAdvection & A-B
1562    o monitor: change definition of KE to check conservation of Energy
1563    
1564    checkpoint45c_post
1565    o Removed f90 comments ("!")
1566    o Modified initialisations to enable exf package for MITgcm
1567      (without invoking ECCO_PACKAGE).
1568    o modifications to gradient check package (Martin Losch)
1569      - enable centered differences
1570      - modified format of standard output
1571    
1572    checkpoint45b_post
1573    o cleaned exchange calls in cg2d
1574    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1575    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1576      to configure barotropic setup (Martin Losch)
1577    o moved some initialisations within bi,bj loop in dynamics
1578      (TAF flow dependency)
1579    o in initialise_varia, moved call packages_init_variables
1580      before convective_adjustment_init
1581      (corresponding adjustment of TAF tape initialisation).
1582    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1583    
1584    checkpoint45a_post
1585    o compute Rho over the whole domain (extend iMin,jMin indices)
1586    o specific exchange for X-slice domain (case Ny=1)
1587    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1588    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1589    
1590    checkpoint44h_post = checkpoint45
1591    o Fix to restore differentiability:
1592      place at which packages_init_variables is called in
1593      initialise_varia is crucial for reverse control flow.
1594    o modifications in GMRedi to enable stable adjoint
1595      (corresponding modif's in thermodynamics, dynamics)
1596    o added missing hook for sponge layer code in external_forcing
1597    o modified test cost functions
1598    o storing in gad_advection (plus removal of write(0,*)!
1599    o missing headers TR1.h added in convective_adjustment routines
1600    o errorMessageUnit set non-equal zero in eeboot
1601      (conflict on some platforms, e.g. IBM SP3)
1602    o modified carbon verif.
1603    
1604    checkpoint44h_pre
1605    o vertical grid option: allow to put the Interface at the middle between
1606      2 cell-centers ; replace delZ in pkg/kpp by drF.
1607    o GM Advective form: Tracers are advected using the residual transport (=
1608      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1609    
1610    checkpoint44g_post
1611    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1612      results) ; ifdef missing in thermodynamics.F
1613    
1614    checkpoint44f_pre,checkpoint44f_post
1615    o added PTRACERS package
1616      This allows an arbitrary number of passive tracers to be integrated
1617      forward simultaneously with the dynamicaly model.
1618      + Implemented so far:
1619        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1620        - I/O and checkpointing
1621        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1622      + Not implemented so far:
1623        - KPP
1624        - OBCS
1625      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1626        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1627        line in data.pkg.
1628      + This package is disabled by default since it increases storage.
1629    
1630    
1631    o testscript: added -cleanup option
1632    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1633                 b) enable to filter 2D fields.
1634    
1635    checkpoint44e_pre,post
1636    o re-wrote convective adjustment to use pre-calculated weights
1637      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1638      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1639      Original calls to convect() still in place.
1640    
1641    chkpt44d_pre,post
1642    o added missing EXCLUDE_MONITOR flags
1643    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1644      (incompatible typ in MIN/MAX expressions caused problems
1645      on IBM SP3)
1646    o in genmake added variable MAKEDEPEND
1647      plus resetting for case SunOS
1648    o added timer_stats.c routine for IBM SP3
1649    o removed variables in dynamics
1650    !!! I forgot to create tag chkpt44d_pre !!!
1651    !!! But chkpt44d_pre = chkpt44c_post    !!!
1652    
1653    o real fresh water flux implemented with non-linear free-surface.
1654    
1655    chkpt44c_pre,post
1656    o few fix (mask in shap_s2, EmPmR in external_field_load,
1657      USE_NATURAL_BCS in solve_for_P);
1658    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1659    
1660    checkpoint44b_pre/_post
1661    o merge of relevant stuff from the ecco-branch:
1662      - genmake: removed $S64 overwrite for case SunOS
1663      - pkg/exf: update and corrections for field swapping and obcs
1664      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1665                  harmonized between ECCO and MITgcm
1666      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1667                      updated checkpointing_lev... lists for obcs
1668      - model/src: minor changes in forward_step, plot_field
1669                   added directive for divided adjoint in the_main_loop
1670      - pkg/mdsio: added mdsio_gl_slice
1671    
1672    o check parameters & config (chkpt44a_pre,post)
1673    o OBC and NonLin_FrSurf.
1674    
1675    checkpoint44
1676    o fix bug in mom_vi_del2uv
1677    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1678    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1679    o update AIM experiments (NCEP input files)
1680    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1681    o added some stuff for AD
1682    
1683    checkpoint43
1684    o added two new advection tests
1685    o added global 4x4 degree ocean test
1686    o added test of H&S94 with free surface on cube
1687    o some final mods for gradient check, adjoint,...
1688    
1689    checkpoint42
1690      Fixed AD-related problems:
1691    o Store directives up-to-date with re-arranged Adams-Bashforth
1692      (mainly thermodynamics.F)
1693    o New store directives for multi-dim. advection schemes
1694      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1695      * new common block and key passkey
1696      (mainly gad_advection.F)
1697    o Modified store directives for split of dynamics/thermodynamics
1698      for the case ALLOW_KPP
1699    o Cleaned argument list for timestep_tracer.F
1700    
1701    checkpoint41
1702    o re-formatted/added comments in prologues of key subroutines
1703      to work with protex
1704    
1705    checkpoint40
1706    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1707    o added FLT (floats) package from Arne along with demo. experiment
1708    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1709      implementation of forward-in-time forcing terms
1710    o more mods for non-linear free-surface including new variable
1711    o modified multi-dim method to work on cube
1712    o bug fix in KPP (from DM)
1713    
1714    checkpoint40pre9
1715    o added DST advection schemes
1716    o fix MPI bug on SGI's
1717    o modifications for non-linear free-surface
1718    o fixed conditionals for fixed flow/passive tracer only mode
1719    o added tension/strain form of stress tensor
1720    o changes to commenting of arguments for TAF/TAMC
1721    o added/updated many matlab scripts
1722    o added multi-dimensional advection method for tracers
1723      
1724    checkpoint40pre8
1725    o new package rw/
1726      Added method for dumping intermediate local arrays:
1727      mdsio_writetile - same as mdsio_writefield except works from inside
1728                        bi,bj loop
1729      mdsio_writelocal - same as mdsio_writetile except works for local
1730                         arrays
1731      write_local_r? - higher-level wrapper for mdsio_writelocal
1732      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1733      Example given at end of mom_vecinv.F that dumps some local arrays.
1734    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1735      control flux-form versus vector invariant code.
1736      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1737      or genmake -DISABLE ...
1738    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1739      (additional storing is now needed for case vecinv;
1740      currently nothing implemented to switch this storing off
1741      in case fluxform is used since no CPP flag available).
1742    
1743    checkpoint40pre7
1744    o bug fix in dynamics.F
1745      calc_viscosity called before k=1,Nr loop.
1746    o added some #ifdef's ALLOW_PASSIVE_TRACER
1747    o cleaned initialisations in ctrl_map_ini
1748      related to TAF
1749    
1750    checkpoint40pre6
1751    o split dynamics into thermodynamics & dynamics
1752    o corresponding split of calc_diffusivity into
1753      calc_diffusivity, calc_viscosity
1754      (kpp_calc_diff, kpp_calc_visc).
1755    o Added diffkr, kapgm to control variables
1756    o bug fix in gmredi_slope_limit for ldd97
1757    
1758    checkpoint40pre5
1759    o proper initialization of Adams-Bashforth time stepping
1760      + uses forward step for very first step of model (iter=0)
1761    o re-generated *all* output since almost all output is modified by this
1762      change (sorry but we've been putting this one off for about 2 years)
1763      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1764        *not* regenerated since they are already out of date and I don't
1765        want to create the impression that they are suddenly working.
1766    o removed KAP stuff for DEC's
1767    o modified/added many .cvsignore files in */code and */input
1768    o added new expt "solid-body.cs-32x32x1"
1769      + this uses an alternative form of ini_curvilinear_grid.F which
1770        is not necessarily any better than the current one...
1771    
1772    checkpoint40pre4
1773    o added re-initialisations of utrans,vtrans,rtrans in
1774      calc_common_factors which are crucial for TAF.
1775    o extended iMin,jMin range for calc_common_factors,
1776      calc_diffusivity
1777    o added option ALLOW_PASSIVE_TRACER
1778    o a few minor updates and fixes
1779    
1780    checkpoint40pre3
1781    o created calc_gtr1.F for gad package
1782    o split the_main_loop and re-introduced forward_step
1783    o some recomputations of nIter0 for TAMC
1784    
1785    checkpoint40pre2
1786    o Updated to latest branch of AJA, JMC
1787    o Added gradient check package
1788    o Added routines for passive tracer handling
1789    o Added carbon sequestration sensitivity experiment
1790    
1791    checkpoint39
1792     o Modifications and fixes to support TAMC
1793       (mainly missing or wrong directives)
1794     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1795       in addummy_in_stepping
1796     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1797     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1798     o Included following packages:
1799       cal: calendar
1800       exf: external forcing
1801       ecco: essential routines to control use of cal, exf
1802             (NB: this is not the full ECCO environment)
1803     o disabled some packages by default in genmake
1804    
1805    checkpoint38
1806     o see notes_c37_adj.txt
1807     o corrected wrong layer index in external_forcing_t
1808     o replaced the_main_loop/forward_step by the_main_loop
1809     o removed forceoutput from write_state
1810       (replaced criteria for initial/final state)
1811     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1812    
1813    checkpoint37
1814     o mdsio.F routine split and packaged in pkg/mdsio
1815       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1816        used unless genmake -disable=mdsio)
1817     o allow a more precise surface-geopotential gradient for the atmosphere
1818       taking into account the change in space of Alpha (=1/rho) at the surface.
1819     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1820       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1821     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1822       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1823       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1824     o Time-Average diagnostics defined as a pseudo package "timeave".
1825     o pickup files : old pickup (before c35) did not work with new code (c35
1826       and after) unless activating 2 commented lines in initialise-varia.
1827     o Non-Hydrostatic pickup file Pb fixed.
1828     o bug with Rigid-lid version (since c35) fixed.  
1829    
1830    checkpoint36
1831     o implement Crank-Nickelson barotropic time-stepping
1832     o recover Time-Average diagnostics
1833     o fix Pb in checkpoint (PR#19)
1834     o AIM become a standard package ; clean unused CPP_kees
1835    
1836    checkpoint35
1837     o subtantial rewrite of dynamics.f
1838     o allows staggered time-stepping
1839     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1840     o added bottom drag (linear + quadratic)
1841    
1842    checkpoint34
1843     o Modified exchange routines for correct reverse simulation.
1844     o Added verification output to comply with bug fix in impldiff.F
1845       as of c33 (exp2, natl_box).
1846     o Corrected store directives in dynamics.F
1847     o Corrected array boundaries in impldiff.F
1848     o Corrected array dimensions in gmredi.
1849       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1850     o Added routine GLOBAL_SUM_INT to global_sum.F
1851     o Added mdsio_gl.F for ECCO purposes.
1852    
1853    checkpoint33
1854     o Fixed bug in lower BC in impldiff.F
1855     o Fixed confusion about units of forcing arrays in FFIELDS.h
1856       namely Fu,Fv,Qnet,Qsw,EmPmR:
1857       - Removed verification/natl_box/code/external_fields_scale.F
1858         (did not differ from that in model/src)
1859       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1860         (see FFIELDS.h for description)
1861       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1862         kpp_calc.F and kpp_transport_t.F
1863       - Removed model/src/external_fields_scale.F and calls to it
1864       - verification/natl_box uses flux data with "atmospheric" sign so
1865         a special version of external_fields_load.F is used to
1866         change the data as it's read in. This way, the arrays
1867         have the right units and signs at all times tha a user could
1868         possibly use them.
1869     o Corrected genmake to delete a temporary file during configuration
1870    
1871    checkpoint32
1872     o Scaling of forcing fields moved from external_forcing.F to
1873       external_fields_scale.F, called directly after loading fields.
1874     o Surface relaxation terms added to surface tendency fields in
1875       extra subroutine.
1876     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1877       fields.
1878     o Changes in GMRedi to comply with packaging structure.
1879     o Modifications and bug fixes in KPP package.
1880     o Verification experiment for KPP added (verification/nat_box/)
1881    
1882    checkpoint31
1883     o Packages interface brought in line with defined standard
1884       -> new routines packages_...F
1885       -> changes in initialise_fixed.F, initialise_varia.F
1886       -> enables initialisation interface for ECCO package
1887     o Rescaling of external forcing fields immediately after read
1888       (removed from external_forcing.F)
1889       -> new: surface_fields_scale.F
1890       -> affects ini_foorcing.F, external_fields_load.F
1891     o Computation of surface tendencies before tendency updates.
1892       -> new: external_forcing_surf.F
1893     o Change of variable names useGMRedi, useKPP, useECCO
1894     o Further changes in dynamics.F, impldiff.F for TAMC
1895     o Tested for experiments 0, 2, 4.
1896       - not yet tested for GMRedi.
1897       - not yet tested for KPP.
1898    
1899    checkpoint30
1900     o Updates for OBCs
1901     o New experiment for test OBCs (internal_wave)
1902     o New output.txt in verification/exp4/results/
1903     o Updates for KPP: calculation of viscosity corrected, new variables
1904       kpp_dumpFreq and kpp_taveFreq
1905     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1906       and entry for T90 in genmake
1907    
1908    checkpoint29
1909     o packaged KPP and GM/Redi
1910    
1911    checkpoint28
1912     o Corrected initialization of hFacMin for difference vertical coordinates
1913     o Modified calculation of partial cell thickness to more robust algorithm
1914     o config_summary.F: replaced write_1D_... by write_0D_...
1915       read_write.F: added subroutines write_0D_...
1916     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1917       included some initialisations required for TAMC.
1918     o routine calc_isoslopes: modified sqrt computation to make it
1919       differentiable for zero argument.
1920     o routines dynamics, impldiff:
1921       included store directives and tape key computations required for TAMC.
1922     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1923    
1924    checkpoint27
1925     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1926       formulation works properly with variable resolution.
1927     o restructured the calling tree between the_model_main() and dynamics()
1928     o split initialise() into initialise_fixed() and initialise_varia()
1929     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1930       in new routine ini_psurf()
1931    
1932    checkpoint26
1933     o moved some #ifdef in optional routines to encompass everything
1934       except the argument declarations. This was using up some memory.
1935     o fixed macros like _ADT to work with both versions of Linux cpp
1936     o cleaned up some unused and uninitialized variables
1937       (helps when debugging with strict compile options)
1938     o split up CPP_EEOPTIONS.h into options and macros
1939       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1940     o patch for 2 processor JAM mode
1941    
1942    checkpoint25
1943     o updates for OBCs and NH
1944     o dramatically reduced memory usage
1945     o added "JAM" routines for use on Artic network
1946     o parameterization of convection by implicit vertical diffusion
1947     o added a diagnostic of convective index
1948     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1949       (this is was partly for OBCs and NH but also in anticipation of
1950        an explicit free-surface option)
1951     o initial state input files for U and V
1952    
1953    checkpoint24
1954     o Removed some spurious "REAL"s
1955     o Updated KPP to latest version from JPL
1956     o Added a COS(latitude) in horizontal viscosity
1957    
1958    checkpoint23
1959     o Added del^4 diffusion for salt and temperature
1960     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1961    
1962    checkpoint22
1963     o Made many small changes: implicit none, format(i5), etc...
1964     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1965    
1966    checkpoint21
1967     o Introduced new I/O package that supports direct-access records (mdsio.F)
1968     o Split-up mid-level I/O routines
1969     o Updated input data for experiments 0,1,2,4 and 5
1970     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1971    
1972    checkpoint20
1973     o Tidied up open-boundaries some more
1974     o Added non-hydrostatic code
1975     o Fixed some input data
1976     o Modified MPI start-up to work in "coupled" context.
1977    
1978    checkpoint19
1979     o Tidied up directory structure for verification experiments.
1980     o Added new code for open boundaries.
1981     o Corrected advective terms near boundaries.
1982     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1983     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1984     o Split default parameters out of ini_parms.F into set_defaults.F.
1985    
1986    checkpoint18
1987     o Further changes for optional code generation with
1988       CPP - ugh!
1989    
1990  checkpoint17  checkpoint17
1991   o Beginning to incorporating modularity   o Beginning to incorporating modularity
1992     for supporting atmos. and ocean configs.     for supporting atmos. and ocean configs.

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