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revision 1.85 by heimbach, Mon Sep 16 18:23:22 2002 UTC revision 1.337 by jmc, Tue Jul 27 15:56:13 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint54d_post
7    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
8    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
9      leading to additional shift by 5 days each year of integration
10       (i.e. leading to considerable offset over the years)
11    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
12    o start with no AB and no initial filtering (staggerTimeStep):
13      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
14    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
15      (external loading & cpl import/export stay in forward_step.F)
16    o update coupling interface to work with new staggerTimeStep
17    o change MDSIO ptracers_pickup.
18    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
19    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
20    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
21    
22    checkpoint54c_post
23    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
24      this affects (truncation error) output.txt of test-exp:
25       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
26    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
27    o change Qnet to always be the net heat flux, (+upward).
28      affects (truncation error) output of natl_box exp.: updated
29    o define the max number of passive tracers in PTRACERS_SIZE.h
30    o start to test mnc routinely in exp0
31    o add sea-ice loading (sIceLoad) as a new forcing field.
32    
33    checkpoint54b_post
34    o add testreport "-j JOBS" option for parallel builds (tested and pretty
35       impressive on Altix and Opteron systems)
36    o diagnostics can now write NetCDF files through the mnc package
37    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
38    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
39    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
40      affects (truncation error) output of lab_sea & natl_box exp.: updated
41    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
42    
43    checkpoint54a_post
44    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
45    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
46    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
47    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
48      + internal_wave (shift in writing cg2d_ini_res)
49    checkpoint54a_pre
50    
51    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
52      - modified verification/lab_sea and natl_box_adjoint accordingly
53    
54    checkpoint54
55    checkpoint53g_post
56    o prepare splitting of thermodynamics: store convect.counter in common block
57    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
58      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
59    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
60    o new parameter "nShapS": allow to treat differently S from T (nShapT)
61    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
62    o restore adjointability
63    
64    checkpoint53f_post
65    o modifications that affect AIM experiment results (update output.txt):
66      - no advection of S at top interface Nr (pkg/generic_advdiff)
67      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
68    o AIM pkg:
69      - include stability function into surf.Flux derivative relative to Tsurf
70      - calculate clear-sky radiation & surface temp. change (for diagnostics)
71    
72    checkpoint53e_post
73    o merged cylindrical coord configuration
74    o added rotating_tank experiment
75    checkpoint53e_pre
76    
77    checkpoint53d_post
78    o faulks upgraded: re-generate output.txt that have changed:
79       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
80    o Added Bryan and Lewis, 1979, vertical diffusivity profile
81    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
82    o added Sadourny discretization of Coriolis
83      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
84      - re-enabled use of omega3 (useAbsVorticity)
85    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
86      vector-invariant equations
87      - note: does *NOT* yet use same variable visc. for no-slip BC's.
88    o recoded the lateral boundary conditions for non-hydrostatic w, this time
89      hopefully without new bugs
90      - still to do: biharmonic friction for non-hydrostatic w
91    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
92    o regenerated output for global_ocean_ebm (using -ieee)
93    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
94      of mom_common/
95      - simple re-arrangement of instructions within computing loop
96    checkpoint53d_pre
97    
98    checkpoint53c_post
99    o new version of coupler for AIM+thSIce and Ocean models
100     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
101     - land: change Evaporation of snow
102     - aim with thSIce: fix bug in snow-precip.
103    o changes to calc_gw.F
104     - bug fix for w^2 term near the bottom boundary
105     - (hopefully) improve the lateral slip boundary condtions for use with
106        partial/looped cells
107      - because the bug fix changes two verification experiments anyway (exp5
108        and plume on slope), change the lateral boundary condition from half slip
109        to the value of no_slip_sides
110    o ebm package wasnt quite up to the parallel task. Fixed that.
111    o Adjoint of EBM package + verification
112      * TLM OK
113      * ADM not sufficient accuracy yet (needs further testing)
114    
115    checkpoint53b_post
116    o Commiting new energy balance model to repository
117      * package is pkg/ebm
118      * verif. is verification/global_ocean_ebm
119      * references are in ebm_driver.F
120    C      * X. Wang, P. Stone and J. Marotzke, 1999:
121    C        Global thermohaline circulation. Part I:
122    C        Sensitivity to atmospheric moisture transport.
123    C        J. Climate 12(1), 71-82
124    C      * X. Wang, P. Stone and J. Marotzke, 1999:
125    C        Global thermohaline circulation. Part II:
126    C        Sensitivity with interactive transport.
127    C        J. Climate 12(1), 83-91
128    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
129    C        Destabilization of the thermohaline circulation
130    C        by atmospheric eddy transports.
131    C        J. Climate 7(12), 1870-1882
132    o Will need long integration testing.
133    checkpoint53b_pre
134    
135    o created pkg/mom_common in preparation for variable viscosity code
136    o renamed and split ini_mnc_io
137    o pkg/land: only liquid water can diffuse or run-off
138    o AIM using land: soil wetness availability account for snow
139    o added printMapIncludesZeros to EEPARMS namelist
140    
141    checkpoint53a_post
142    o restore TAMC compatiility for exf_constants.h
143      (no usage of _d in .h)
144    o Additional storing in KPP in an attempt to fix
145      TAMC problem with adjoint of KPP code.
146      (no success...)
147      Identical code works fine with TAF.
148    o Fixed verification/natl_box_adjoint experiments.
149      Initial conditions for Experiments 4 and 5 are now
150      set to "SEAICE_initialHEFF=0", which is more reasonable,
151      and hence gives results closer to that of Experiment 2.
152      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
153    
154    checkpoint53
155    o stable checkpoint with up to date adjoint
156      TLM tests only run for 1st grdchk at the moment. Its unclear if
157      this is a code problem or a problem with resetting code for g_
158      variables that is being autogenerated wrong.
159      Otherwise:
160       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
161       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
162         are both still in chaos following their security messes.
163    
164    checkpoint52n_post
165    o various build (mostly genmake2) changes including:
166      - ability to build/run more easily within Cygwin and MacOS X
167      - more complicated Makefiles with a stronger dependence on Gnu Make
168    o pkg/seaice modifications
169      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
170        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
171        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
172      - changed proxy for geostrophic velocity and updated
173        verification/lab_sea/results/* accordingly
174      - removed ADI dynamic solver from pkg/seaice
175      - replaced all occurrences of 1/CSTICE or 1/CSUICE
176        they caused a segmentation fault under certain circumstances
177      - removed unused field WATR
178    o bug fix in exf-package:
179      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
180         now reflect that.
181    o small fixes in the cal-package:
182      - set reference date to first of January for the 'model'-calendar
183      - failing of cal_CheckDate in cal_FullDate now actually results in a
184        warning
185    o small modifications in exf-package to increase flexibility:
186      - change climtempfreeze from a constant to a runtime parameter that
187        is specified in data.exf_clim (default = -1.9)
188      - introduce runtime parameter windstressmax (default = 2.0) that is
189        specified in data.exf
190    o fix in pkg/thsice:
191      - update Evap (Tsf changes) to be consistent with Latent heat flux
192      - maintain snow precipitation unchanged (even if Tsf >=0).
193     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
194    
195    checkpoint52m_post
196    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
197      this does not change any of the results, because myIter=0 in swfrac always
198      lead to jwtype=2 (the default anyway), but the call makes little sense
199      as a default
200    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
201    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
202      atmospheric model (AIM) to use it ; add a "slab ocean" component.
203    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
204    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
205    o extending useSingleCpuIO option to work with new exch2 I/O format
206      - old-style, missing-tile I/O is still accessible by defining CPP
207        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
208    o monitor package can write to NetCDF files and/or STDOUT
209    o fix re-definition bug in MNC_GRID_INIT_ALL()
210    o doc/api_reference added
211      - a framework for building an API Reference Manual using all
212        the "protex" comments embedded in the code
213      - see pkg/generic_advdiff, pkg/mnc for examples
214    o MNC:
215      - make myThid the last argument for all subroutines
216      - new default for the grid files: NO halos
217      - add useMNC and other run-time flags
218      - separate per-file-group handling of the unlimited dimension
219      - early initialization of MNC w/ flags read at the eeboot stage
220        and lookup tables set in initialize_fixed
221      - write all MNC output to a freshly-created directory
222    o thermodynamics sea-ice (thsice) is now tested with testreport.
223    o test exp. advect_cs: use the standard cs32 grid ; update output.
224    o Added functionality to grdchk:
225      pick global i,j,k position (or nearest wet) where to perform check.
226    
227    checkpoint52l_post
228    o new land formulation:
229      a) use ground enthalpy as prognostic variable to ensure exact
230         energy conservation.
231      b) account for water temperature and for latent heat of freezing
232         in all processes (rain, run-off, ground storage)
233      c) compute surface and ground temperature implicitly.
234    o aim_v23 modification for new land model:
235      a) Treat separately land / ocean / sea-ice surface fluxes
236         to allow implicit computation of land & sea-ice surface temp.
237      b) add snow precipitation.
238    checkpoint52l_pre
239    
240    o fix problem (when 1 tile is empty) in min/max monitor.
241    o fix bug in timeAve (u,vZetatave in common block)
242    o no restoring terms under ice for pkg/seaice
243    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
244    o bug fix for pkg/seaice pickups
245    o change MNC call locations and add coordinate attributes
246    o mask vorticity at the corner ; affects global_ocean.cs output
247    o fix ini_curvilinear_grid ; test CS experiments with mpi
248    o aim.5l_cs: modify sea-ice fraction input file ; update output
249    o exf: Adding simple range check routine for exf fields after read
250    
251    checkpoint52k_post
252    o removed top-level directory "diags"
253      - we migrated these functions to pkg/timeave a long time ago
254    o fixed bug introduced in pkg/monitor
255    o accuracy ctrlprec = 32 insuffient for gradient checks using
256      averaged fields (I/O via cost_averages)
257      -> use ctrl.h in active_file*.F to control I/O precision.
258    o paramter list of CALL ADTHE_MAIN_LOOP
259    o added initial do_the_model_io to ecco
260    o set all ...Freq to zero after cost_final
261      taveFreq, dumpFreq, pChkptFreq
262    o MAIN and ECCO differentiability restored
263    
264    checkpoint52j_post
265    o fix nchklev in tamc.h for global_ocean...
266    o Bringing flow and store directives up-to-date
267    o Really weird thing!
268      call do_the_model_io from the_main_loop with parameters
269      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
270      TAF places a faulty re-call of initialise_varia
271      after cost_final call which should not be there!
272    checkpoint52j_pre
273    
274    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
275      error messages
276    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
277    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
278      debug output
279    o modfied mdsio_writefield.F to handle non-global files under exch2
280    o update AIM Cubed-Sphere exp (aim.5l_cs):
281      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
282    o update AIM Equatorial Channel exp:
283      use standard aim_v23 pkg and change the SST fields to be more realistic.
284    o globalFile now works with exch2
285    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
286      mon_vort3.F to make exch2 friendly with >1 tile per cube face
287    o limit timeave output for hi-res integrations
288    
289    checkpoint52i_post
290    o removed CPP_EEOPTIONS.h from verification/*/code
291    o updated the tiling for global_ocean_pressure
292    checkpoint52i_pre
293    
294    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
295      the old pkg/aim).
296    
297    checkpoint52h_pre
298    o shortened offending lines in exch2_send_rx?.template
299    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
300    o genmake2: add build & execute test for NetCDF code
301    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
302      old grid files, moved CPP_EEMACROS.h to pkg/exch2
303    o added useSingleCPUIO flag to monitor.F and mon_out.F
304    o added temporary hack for sea-ice dynamics on the cube:
305      metric terms are ignored and it is assumed that
306      there is no sea-ice on cube faces 1, 2, 4, and 5.
307    
308    checkpoint52f_post
309    o added exch2 cube routines to pkg/exch2
310    o modified hs94.cs-32x32x5 to use it
311    o added new grid files to hs94.cs-32x32x5
312    checkpoint52f_pre
313    
314    checkpoint52e_post
315    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
316      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
317    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
318      to work with implicit vertical advection and AB ;
319    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
320    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
321     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
322    checkpoint52e_pre
323    
324    o fix bug in impldiff when Nr=1 or Nr=2.
325    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
326    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
327    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
328      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
329    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
330    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
331    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
332    
333    checkpoint52d_post
334    o re-tiled many expts to allow comparison in multi-processor mode
335      - updated output accordingly
336      - changed hs94.128x64x5 to use intial T from file rather than use the
337        random number generator
338    o add infrastructure in model routines for fizhi and gridalt packages
339    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
340    o changes to permit hi-res, cubed-sphere, configuration
341      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
342      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
343      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
344        of surface winds for the cube
345      (A verification experiment, based on global_ocean.cs32x15, but with
346       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
347       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
348       complete with example surface forcing files and matlab scripts to look
349       at the output and compare it with that of global_ocean.cs32x15.)
350    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
351       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
352       to conform to the common rule.
353    o check-in the first version of the coupler + interfaces for multi-components
354       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
355       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
356       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
357       - ocean and atmos. share the same horizontal grid (no interpolation).
358       - exchanges between component and coupler is done in forward_step
359    o new verification experiment, cpl_aim+ocn:
360       coupled ocean - AIM atmosphere on cs32 grid.
361    
362    checkpoint52d_pre
363    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
364    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
365    
366    checkpoint52c_post
367    o Fixing OPTIONS files for use of exf:
368      - ALLOW_ECCO not needed
369      - ECCO_CPPOPTIONS.h should not be included from
370        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
371        as has been the case in the past
372      - All cal/exf related options are currently set in
373        single header file. Should remain so until we
374        agree on a consistent new policy.
375    o Removed all CPP options for cal package.
376      cal has no more CPP options.
377    o modified STOREs in GAD_ADVECTION
378    o corrected key comp. for passkey
379    
380    checkpoint52b_post
381    o new version: "thsice" of thermodynamic sea-ice pkg:
382     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
383     - modify fluxes but do not change theta directly;
384     - light cleaning of bulk_force pkg (still needed with thsice).
385     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
386       + output_thsice.txt to test thsice & bulk_force pkgs.
387    o put back grid & coriolis monitor output.
388    checkpoint52b_pre
389    
390    o call "do_the_model_io" at the beginning (=> dump initial state)
391    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
392    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
393      (need info on NUMBER_OF_PTRACERS)
394    o missing PTRACERS headers in some routines
395    o default tamc.h in pkg/autodiff supposed to crash
396      to ensure proper customization
397    
398    checkpoint52a_post
399    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
400      - moved surfaceTendencyTice from pkg/seaice to main code
401      - subroutine FREEZE_SURFACE now limits only surface temperature
402        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
403        => new output.txt for global_ocean.cs32x15 & global_with_exf
404      - keep the old version of FREEZE for backward compatibility;
405        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
406      - corresponding modifs for TAF directives
407    o added surface flux output variables to TIMEAVE_STATVARS
408    o time-averaged output for pkg/ptracers
409    o fix problem with ECCO-related divided adjoint
410      snapshot file was missing some ad-variables,
411      but no warning issued by TAF
412    
413    checkpoint52a_pre
414    o some bug fixes for #undef REAL4_IS_SLOW
415    
416    checkpoint52 = ecco_c52_e35
417    o after testing adjoints of checkpoint51u_post
418    
419    checkpoint51u_post
420    o this is the post-merge tag of the ecco-branch
421      (needs another clean checkout and re-testing)
422    o various natl_box_adjoint configs and results
423      but no input fields
424    o obcs adjoint not yet merged!
425    o adding ECCO global 1x1 and 2x2 degree configs
426    o updated/extended some store directives for seaice
427    o pkg/ecco now containes ecco-specific part of cost function
428    o top level routines the_main_loop, forward_step
429      supersede those in model/src/
430      previous input data.cost now in data.ecco
431      (new namelist ecco_cost_nml)
432    o in ctrl/ cleaned some cross-dependencies and updated CPP options
433    
434    checkpoint51t_post
435    o this is the pre-merge tag of the ecco-branch
436    
437    checkpoint51s_post
438    o cleanup: removed various obsolete #define-s
439    o pkg/grdchk
440      - renamed 'ph-grd 3' to 'grad-res'
441      - merged from ecco-branch
442        (remaining bug fixes for obcs gradient checks)
443      - additional high-precision output for testreport
444        (grep for 'precision_grdchk_result')
445    
446    checkpoint51r_post
447    o cleaned up or removed CPP_OPTIONS.h files
448    o updated results for some of the tests to reflect the new
449      optfiles (-ieee: -O0 instead of -O3)
450    
451    checkpoint51q_post
452    o cd_code:
453      - moved cd_scheme.F -> cd_code_scheme.F
454      - separate read_checkpoint from cd_code_ini_vars.F
455      - separated cd_code part from write_checkpoint
456      - updated AD_SOURCE, generated .flow
457      - added CD_CODE_VARS.h to the_main_loop
458      - Moving cd_code specific store dir.s to pkg/cd_code
459    o ctrl package totally restructured
460      - pack/unpack now optional and decoupled from
461        xx_/adxx_ I/O
462      - ctrl_pack/unpack cleaned
463        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
464      - confined inclusion of AD_CONFIG.h to where necessary.
465    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
466    
467    checkpoint51p_post
468    o create initial cd_code package
469      - WARNING: the initialization of fields within packages
470        is broken because INI_FIELDS (where READ_CHECKPOINT is
471        called) is called *before* PACKAGES_INIT_VARIABLES.
472        This seems to be backwards since
473        1) its important to initially zero the entire field including
474           the "halo" region
475        2) zeroing needs to be done *before* reading pickup info
476           and the pickup call might or might not happen in any
477           particular run
478      - this needs an overhaul for R2
479    o cleanup verification/*/code/GMREDI_OPTIONS.h
480    o cleanup testreport
481    
482    checkpoint51o_post
483    o bringing AD-related verif's up to date with genmake2
484      - carbon/
485      - global_ocean.90x40x15/
486      - hs.94.1x64x5/
487      - (front_relax/ )
488    o (more) consistent directory structure for AD-related verif.'s
489    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
490    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
491    o bug fix in find_alpha.F for MDJWF:
492      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
493        change rho -> rho-rhoConst
494      - replace call find_rho to find_rhonum
495    o initialisation of rFlx extended to full array (required by TAF)
496      and shifted to thermodynamics
497    o removed PTRACERS.h in ptracers routine
498    o added surfacetendencyPtr to S/R parameter list pracers_forcing
499    o Correcting initialisations for fVerU, fVerV.
500    o helping TAF to recognize dependency on kUp for
501      fVerU, fVerV
502    o Replacing delZ by delR in pkg/ctrl/
503    checkpoint51o_pre
504    
505    o undid all of cp51 pending some cleanups and discussion
506    o added the [#include "AD_CONFIG.h"] statement to all files that need
507       it for adjoint/tl #defines
508     o re-worked the build logic in genmake2 to support AD_CONFIG.h
509     o removed tools/genmake since it no longer works
510    
511    checkpoint51n_post
512    o modifications to make FREEZE flux visible to pkg/kpp
513      - moved surfaceTendencyTice from pkg/seaice to main code
514      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
515      - subroutine FREEZE now limits only surface temperature
516        (this means new output.txt for global_ocean.90x40x15,
517         global_ocean.cs32x15, and global_with_exf)
518    o added surface flux output variables to TIMEAVE_STATVARS
519    
520    checkpoint51n_pre
521    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
522    o added [#include "AD_CONFIG.h"] to all files that use the following
523      defines:
524      - ALLOW_ADJOINT_RUN
525      - ALLOW_TANGENTLINEAR_RUN
526      - ALLOW_ECCO_OPTIMIZATION
527    
528    checkpoint51m_post
529    o incorporating changes to get TAMC/TAF working in genmake2
530      - added new TAMC/TAF targets to the Makefile
531      - various cleanups related to package handling
532      - these changes should have no impact on the forward model
533    
534    checkpoint51l_post
535    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
536     - faster algorithm for cal_addtime.F
537     - higher precision arithmetic, where needed
538     - pkg/exf *startdate variables changed from calendar date to
539       model integration time
540    
541    checkpoint51l_pre
542    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
543    o enable to apply restoring on S & T only in a latitude band.
544    o update output (external_forcing_surf modif. change truncation errors)
545       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
546    
547    checkpoint51k_post
548    o change default to: useNHMTerms=.FALSE.
549     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
550       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
551     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
552        exp1, ideal_2D_oce
553     - change data file of oceanic exp (leave the results unchanged for now)
554       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
555    o set gravitySign automatically according to the vertical coordinate used
556      (and change sign: back to "logical" value: +1 when R increases downward)
557    o added an include barrier to the default CPP_OPTIONS.h and
558      removed the #include "PACKAGES_CONFIG.h" from it
559    o fix a bug in mom_fluxform (from chk51j_post)
560    
561    checkpoint51j_post
562    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
563    o adjusted some flow directives (dynamics, thermodynamics)
564    o added cubed-sphere case to test cost function
565    o heckpoint_lev?_directives.h now include
566      pkg-specific directives, whenever those are enabled.
567    o Moving pkg-specific flow directives to corresponding pkg
568      Moving pkg-specific differentiation list to corresponding pkg
569      Moving pkg-specific checkpoint-lev storing to corresponding pkg
570      ---> conventions are
571           - pkg_ad.flow
572           - pkg_ad_diff.list
573           - pkg_ad_check_lev?_dir.h
574    
575    checkpoint51i_post
576    o merge of the branch-genmake2
577      - knowingly breaks the older genmake
578      - automatic generation of all ALLOW_${PKG_NAME} defines
579      - new testreport supersedes older testscript
580    o large number of package inclusion and header cleanups
581    checkpoint51i_pre
582    
583    o new output for adjoin of global ocean vector invariant
584    o fix for checkpoint of thermodynamic seaice and bulk_force
585    o Steph gchem various cleanups
586    
587    checkpoint 51h_pre
588    o fixed some single quotes
589    o modify gchem pkg to be more versatile
590    o modifications to clean up dic pkg
591    o add pkg/cfc
592    
593    checkpoint51g_post
594    o provide links for ARPACK and ADM*TLM
595    o start removing verification/vero/
596    o update AD-related stuff
597      (in particular some IF-statements in model/src/ routines)
598    o adding to verification/global_ocean.90x40x15/ adjoint of
599      vector invariant setup
600    
601    checkpoint51f_post
602    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
603    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
604      of tracer Green's fucntions for ocean inversion project.
605    
606    checkpoint51f_pre
607    o Added on-the-fly spatial interpolation capability
608        "USE_EXF_INTERPOLATION" to pkg/exf.
609      - This is a temporary Cartesian-grid hack until
610        the super-duper ESMF coupler becomes available.
611      - See verification/global_with_exf/README for usage example.
612      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
613        flags and modified pkg/seaice accordingly.
614    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
615        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
616        non-local transport term.
617    
618    checkpoint51e_post
619    o pkg/mom_vecinv:
620      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
621      - add time-ave diagnostic of vorticity advection.
622    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
623    o atmospheric geopotential: - include water vapor effect;
624                                - use p^kappa in p* scaling.
625    o land pkg: read initial state from files.
626    o AIM : add stratospheric drag in the upper level
627    
628    checkpoint51d_post
629    o change function ILNBLNK (=> last non-blank char.) to return zero
630      (instead of the string length) when the string. char is empty
631    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
632    o modif's to restore TAMC compatibility
633      - avoid "_d" constructs in PARAMETER declarations
634      - avoid interrupting lines by comment lines
635    o Use cluster local disks for purely local I/O
636      vs. globally visible disks needed for ctrl stuff
637      (merged from ecco-branch)
638      - new active_file_loc... and mdsio_..._loc routines
639      - affected packages: autodiff, ctrl, grdchk, mdsio
640    
641    checkpoint51c_post
642    o introducing integer flag debugLevel
643      - debLevZero: suppress all output
644      - debLevA: standard
645      - debLevB: equivalent to current debugMode=.TRUE.
646    o introducing pathname variable mdsioLocalDir for mdsio
647      that can be specified at runtime
648      (relevant for cluster I/O to local disk)
649    `
650    >>>checkpoint51b_post
651    adjoint of ptracers
652    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
653    o extended state in checkpoint_lev?, etc.
654    o alternative ctrl/cost with tr1 or ptracer
655    o new comlev1_bibj_ptracers
656    o new ptracers.flow
657    o made ptracers_forcing same as external_forcing_s
658    o added verification for adjoint with ptracers
659      - adm. grdchk fail so far
660      - tlm. grdchk OK
661      - checked tapelev/comlev recomputations: OK
662    <<<checkpoint51b_pre
663    
664    checkpoint51a_post
665    o added code for biogeochemistry package
666      - new pkgs: dic, gchem
667      - new subroutine in ptracers
668    o modify code for biogeo packages
669      - in model/src and pkg/ptracers
670    
671    checkpoint51
672    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
673      - autodiff, ctrl, exf, grdchk, seaice
674      kept separate packages
675      - cost, ecco, obcs
676    o updating verification/internal_wave, verification/lab_sea
677      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
678    
679    checkpoint50i_post
680    o Preparing next differentiable checkpoint and sync
681      of MAIN vs. ecco-branch
682      - 1st step: this one is differentiable
683      - 2nd step: next(! not this) checkpoint will have updated packages
684                  from ecco-branch)
685    
686    checkpoint50h_post
687    o new package "land": provide surface BC for AIM.
688    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
689    o AIM: use true log-P extrapolation for near surface temp (= as in
690        F.Molteni paper) ; update aim.5l_cs output.
691    o New variable in PARM03 for more flexible pickups
692    o somewhat cleaned package initialisation sequence for
693      ctrl/ cost/ ecco/ in packages_... routines
694    
695    checkpoint50g_post
696    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
697      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
698      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
699        made the default because of faster convergence than ADI
700    
701    checkpoint50f_post
702    o exf totally restructured
703      - replaced all exf_set_ routines by one generic exf_set_gen.F
704        and made sure it's still differentiable
705      - split exf_getffields.F into new exf_bulkformulae.F
706      - exf_inscal_/exf_outscal_ suffixes consistent with field names
707      - updated adjoint/makefile and relevant verif. accordingly
708    
709    checkpoint50f_pre
710     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
711          + change Evap over land. (update aim.5l_cs output)
712     o added missing .cvsignores and made uniform across expts
713     o changed configuration of tidal_basin_2d expt
714     o added pkg/debug functions for tracing code in fatal crashes
715     o tidied pkg/monitor to use MONITOR_OPTIONS.h
716     o new fn in pkg/monitor to stop model if solution grows too big
717     o removed lots of single quotes from comments
718    
719    checkpoint50e_post
720    o make KPP work with PTRACERS
721     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
722       nearly a copy of kpp_transport_s
723     - there is no analogue to SurfaceTendencyS, so I have to use
724       gPtr(of the surface layer) instead
725    o add a new platform SunFire+mpi (SunFire 15000) to genmake
726    checkpoint50e_pre
727    
728    checkpoint50d_post
729    o change kpp output from multiple-record state files to single-record state
730      files analogous to write_state.F
731    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
732      analogous to the cg2d-related output.
733    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
734      so that writing to internal file fn (with length 512) fails.
735    checkpoint50d_pre
736    
737    checkpoint50c_post
738    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
739    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
740    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
741    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
742    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
743    
744    checkpoint50c_pre
745    Merging from release1_p13:
746    o bug fix for pkg/seaice dynamic solver
747    o Added SEAICE_initialHEFF to pkg/seaice
748    
749    checkpoint50b_post
750    o store u*,v* in gU,V instead of in guNm1,gvNm1
751    o in order to put the momForcing out of the Adams-Bashforth:
752      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
753      to timestep.F
754    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
755    o re-generate output for highly sensitive test-exp:
756       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
757    
758    checkpoint50b_pre
759    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
760    o corrected CPP option mismatch in exf_Bulk... functions for case
761      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
762    
763    checkpoint50a_post
764    o Bug fix for merging between c50 and KPP.
765      ikey was passed from thermodynamics to kpp_calc via
766      common block rather than being recomputed in kpp_calc,
767      in contradiction with new key itdkey.
768      New key ikppkey created, and tamc.h headers updated.
769    
770    checkpoint50
771    - 2nd step of merge with ecco-branch:
772      merge changes in ecco-branch back into main trunk
773    - bug fix in find_alpha
774    - more storing in gmredi_calc_tensor.F, kpp_routines.F
775    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
776    - merged some sliced AD support routines
777    
778    checkpoint49
779    merged from ecco-branch:
780    o exf:
781      - Enable initialisation of forcing fields to constant
782        (runtime) values.
783      - in exf_getffields.F
784        Reduce i-/j-loop to interior domain, discarding overlaps.
785        That also fixes wrong TAF-key computations for key_1, key_2
786        with bulf formulae.
787      - exf_init.F modify #ifdef for exf_init_evap
788      - exf_getffieldrec.F, ctrl_getrec.F
789        The following INT-usages are not safe:
790          fldsecs  = int(fldsecs/fldperiod)*fldperiod
791          fldcount = int(fldsecs/fldperiod) + 1
792        and were modified.
793    o autodiff: checkpoint_lev...
794      - updated storing for bulk formulae (some arrays were missing)
795      - added state for seaice package
796      - synchronized with main branch
797    o DIVA:
798      Modif.s in
799      - the_main_loop.F
800      - the_model_main.F
801      and added cost_final_restore.F cost_final_store.F
802      o With these changes, it is possible to fully separate
803        the first forward run to compute the cost function (mdthe_main_loop)
804        and adjoint runs over individual DIVA intervals (adthe_main_loop)
805        into separate model executions.
806        This enables better tuning of DIVA to given queue sizes.
807      o Loss of cost function value in consecutive DIVA runs is
808        fixed by storing to 'costfinal' file.
809      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
810        beginning/end of adjoint integration is accounted for.
811      The current changes apply to TAF-1.4.26.
812      TAF has one remaining bug, requiring one manual change
813      (see MITgcm manual).
814    o cal: synchronized between MAIN and ecco-branch
815    
816    checkpoint48i_post
817    o Changes to restore differentiability of code w.r.t. previous tag
818      (mostly adding new routines to make list and replacing
819      pressure by totPhiHyd).
820    o Updated and merged grdchk package
821      - has both ADM and TLM checks
822      - works for single- and multi-proc.
823      - output cleaned
824      - worked successfully for parallel DIVA
825    o genmake:
826      - Adding -platform=SP4
827      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
828    o Modif. for DIVA:
829      ctrl_unpack should not be called in intermediate DIVA interval.
830      (similar thing would apply for active files such as
831      tbar, sbar, psbar, which should not be reinitialised;
832      only relevant for ecco-branch)
833    
834    checkpoint48h_post
835    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
836    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
837    o Added SEAICE_initialHEFF to pkg/seaice
838    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
839    
840    checkpoint48g_post
841    --- EOS:
842    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
843      store total Potential in totPhyHyd for diagnostics & EOS.
844    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
845    --- Pressure/geopotential gradient:
846    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
847    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
848      ( changes results of global_ocean_pressure )
849    o NLFS + z-coord.: add eta*Rho' contribution.
850    o accurate phiHyd when using interface-W at the middle between 2 centers
851     ( changes results of ideal_2D_oce )
852    o includes r* 2nd term in potential gradient.
853    
854    checkpoint48f_post
855    Merging from release1_p12:
856    o Modifications for using pkg/exf with pkg/seaice
857      - improved description of the various forcing configurations
858      - added basic radiation bulk formulae to pkg/exf
859      - units/sign fix for evap computation in exf_getffields.F
860      - updated verification/global_with_exf/results/output.txt
861    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
862      (SBO) core products, including oceanic mass, center-of-mass,
863      angular, and bottom pressure (see pkg/sbo/README.sbo).
864    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
865      to avoid negative values in shallow regions.
866      - updated verification/natl_box/results/output.txt
867      - updated verification/lab_sea/results/output.txt
868    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
869    o Added useSingleCpuIO option (see PARAMS.h).
870    o Updated useSingleCpuIO option in mdsio_writefield.F to
871      work with multi-field files, e.g., for single-file pickup.
872    o pkg/seaice:
873      - bug fix in growth.F: QNET for no shortwave case
874      - added HeffFile for specifying initial sea-ice thickness
875      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
876    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
877      kpp_transport_t.F, forward_step.F, and the_main_loop.F
878    o pkg/seaice:
879      - adjoint-friendly modifications
880      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
881    
882    checkpoint48e_post
883    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
884    o dynamics: change definition of computational domain & adapt mom_fluxform
885      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
886    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
887        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
888        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
889        global_ocean.90x40x15 global_with_exf global_ocean_pressure
890        inverted_barometer solid-body.cs-32x32x1
891      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
892    
893    checkpoint48d_post
894    o in preparation for r*:
895     a) use pre-computed gradient of hydrostatic potential:
896        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
897     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
898        => affects results of glob_oce_pressure (different truncation error)  
899      update output.txt of ideal_2D_oce & global_ocean_pressure
900    
901    checkpoint48d_pre
902    o in preparation for r*:
903      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
904      pass the 2 comp. of the grad. as arguments to momentum S/R.
905      but for the moment, only used if it does not change the results.
906    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
907    
908    checkpoint48c_post
909    Modifications in treatment of initial flux forcing controls
910    to avoid extra storing of flux fields.
911    
912    checkpoint48c_pre
913    o Added tidal_basin_2d experiment (currently 1D!)
914    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
915    
916    checkpoint48b_post
917    o r* coordinate added in #ifdef NONLIN_FRSURF block.
918     (modification to pressure gradient not yet implemented)
919    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
920      (for U & V) that are used for vertical advection of momentum.
921    
922    checkpoint48a_post
923    o In preparation for r*, use temp. array to compute vertical transport
924       in flux-form momentum pkg. => change results of few test-exp.
925      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
926                        lab_sea, natl_box & plume_on_slope
927    
928    checkpoint48
929    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
930    
931    checkpoint47j_post
932    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
933    o moved adexch from forward_step to addummy_in_stepping
934    o added exch in ctrl_map_...
935    o aveFreq.=0. at end of cost_final to avoid overwrite in
936      reverse checkpointing loop
937    o Yet more changes in gmredi:
938      * adgmredi_calc_tensor
939        avoiding all recomputation of gmredi_slope_limit
940      * adgmredi_x/y/rtransport
941        added flag for excessive storing to avoid recomp. of
942        u/v/rtans, dTdx/y/z
943        -> this is not really necessary and very memory-consuming
944      * adgmredi_slope_psi:
945        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
946      * gmredi_slope_limit
947        re-activated full calculation of taperfct for case 'ac02'
948    o updating verification/ adjoints of carbon, global_ocean.90x40x15
949    
950    checkpoint47i_post
951    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
952    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
953      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
954    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
955    o gmredi: fix few bugs.
956    
957    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
958    This will be a good checkpoint to plug into the ecco-branch.
959    o few modif.'s to get latest version adjointed
960      (mainly kick out code in ini_linear_phisurf)
961    o modif's to run adjoint with exactConserv
962    o case GM_BOLUS_ADVEC should be cleaned
963      S/R gmredi_slope_psi should be cleaned
964    o verification/carbon now has exactConserv=.TRUE.
965    
966    checkpoint47g_post
967    o time-average AIM output: becomes independent from statvars time-average
968      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
969    o After TAF bug fix:
970      Tested adjoint of gmredi package.
971      Tests were done with checkpoint47 rather than with latest
972      checkpoint47f_post since the latter is broken for the adjoint
973      verification/carbon/ contains both ADM and TLM gradient checks.
974    Here they are, before they get changed/lost/stolen.
975    Mostly modif.'s to fix numerical sensitivities.
976    Gradient checks OK for
977    - GM_taper_scheme:
978      * clipping
979      * ac02
980      * linear
981      * glw91
982      * dm95
983      * ldd97
984    - GMREDI_OPTIONS:
985      * GM_VISBECK_VARIABLE_K
986      * GM_NON_UNITY_DIAGONAL
987      * GM_EXTRA_DIAGONAL
988      * GM_BOLUS_ADVEC
989    in conjunction with data.gmredi parameters to be checked in
990    in a few minutes under verification/carbon/code/
991    
992    checkpoint47f_post
993    Merging from release1_p10:
994    o modifications for using pkg/exf with pkg/seaice
995      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
996        and SEAICE_EXTERNAL_FLUXES
997      - pkg/exf CPP options EXF_READ_EVAP and
998        EXF_NO_BULK_COMPUTATIONS
999      - usage examples are Experiments 8 and 9 in
1000        verification/lab_sea/README
1001      - verification/lab_sea default experiment now uses
1002        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1003    
1004    checkpoint47e_post
1005    o created a tag prior to creating a branch
1006    
1007    checkpoint47d_post
1008    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1009      at the bottom boundary had an erroneous half slip boundary condition
1010    o added bottom drag and no slip boundary condition capabilities to
1011      oceanic pressure coordinates code
1012    o added new verification experiment global_ocean_pressure, this experiment is
1013      also described in the tutorial section of the manual
1014    checkpoint47d_pre
1015    
1016    checkpoint47c_post
1017    o Added a verification experiment for a global cubed-sphere ocean run
1018      -  verification/global_ocean.cubed32x32x30
1019      -  uses pkg/therm_seaice and pkg/bulk_forcing
1020    
1021    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1022    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1023      when using P-coordinate; only implemented for atmospheric config.
1024    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1025      NOTES: requires option NONLIN_FRSURF to be "#define".
1026    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1027    
1028    checkpoint47b_post
1029    Merging from release1_p9:
1030    o pkg/seaice
1031      - removed GOTO's and added taf directives
1032      - double precision constants to reduce the g77 (Linux)
1033        to F77 (SGI) differences reported in release1_p8
1034    o tools/genmake
1035      - added SGI options
1036    o verification/testscript
1037      - updated to that of checkpoint47a_post
1038    o verification/global_ocean.90x40x15/input/eedata
1039      - modified for SGI f77 compatibility
1040    o verification/lab_sea
1041      - added description of sea-ice model
1042      - added missing matlab routines
1043      - added test of thermodynamics parallelization
1044    
1045    checkpoint47a_post
1046    o new pkg: aim_v23
1047     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1048       for now, keep the same surface forcing as before.
1049     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1050     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1051     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1052    o add diagnostic of surface correction term in monitor output
1053    
1054    o bulk_force and therm_seaice
1055    - Two packages:  bulk_force (Bulk forcing)
1056      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1057    - Earlier integration from Stephaine Dutkiewicz
1058      and Patrick Heimbach.
1059    - Two ifdef statements for compile time,
1060       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1061    
1062    checkpoint47
1063    differentiable version of checkpoint46n_post
1064    o bug fix in quasihydrostaticterms
1065    o * "clean" adjoint code (in terms of extensive recomputations)
1066        can now be obtained for all GMREDI options (i.e. for
1067        - GM_VISBECK_VARIABLE_K
1068        - GM_NON_UNITY_DIAGONAL
1069        - GM_EXTRA_DIAGONAL
1070        - GM_BOLUS_ADVEC )
1071      * However, wrong gradient check problem remains unsolved.
1072      * New CPP options have been introduced for different
1073        tapering schemes
1074    o external_fields_load now part of differentiation list
1075    o pressure needs multiple storing;
1076      would be nice to have store_pressure at beginning or
1077      end of forward_step, e.g. by having phiHyd global (5-dim.)
1078      (NB: pressure is needed for certain cases in find_rho,
1079      which is also invoked through convective_adjustment).
1080    o recomputations in find_rho for cases
1081     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1082    o #define ATMOSPHERIC_LOADING should be differentiable
1083    o ini_forcing shifted to begining of initialise_varia
1084    o Incorporating QNVS line search routines into MITgcm
1085      (this is separate code, and therefore not under pkg)
1086      lsopt/, optim/
1087    o Updated verification/carbon/
1088      - #define GM_VISBECK_VARIABLE_K
1089      - GM_taper_scheme    = 'ldd97'    
1090    
1091    checkpoint46n_post
1092    Merging from release1_p8:
1093    o verification/natl_box:
1094      updating new external_fields_load routine
1095    o New package: pkg/seaice
1096      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1097      The sea-ice code is based on Hibler (1979-1980).
1098      Two sea-ice dynamic solvers, ADI and LSR, are included.
1099      In addition to computing prognostic sea-ice variables and diagnosing
1100      the forcing/external data fields that drive the ocean model,
1101      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1102      The implied surface heat flux is then stored in variable
1103      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1104      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1105      non-local transport term.  Because this call precedes model
1106      thermodynamics, temperature under sea-ice may not be "exactly" at
1107      the freezing point by the time theta is dumped or time-averaged.
1108      N.B.: fairly large differences in accuracy occur across
1109            different platforms/compilers; comparison between
1110            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1111            generated output gives:
1112       T           S           U           V
1113      C D M    c        m  s        m  s        m  s        m  s
1114      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1115      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1116      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1117    
1118      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1119    o GAD:
1120      - generated new common blocks to account for call of
1121        same gad routines with differing traceridentities
1122        (needed to modify tracerIdentity indices in GAD.h)
1123      - generated separate common blocks for case useCubedSphereExchange
1124        (Department of Futurology)
1125      - parameter lists to gmredi_?transport: added tracerIdentity
1126      - added new key indices to tamc.h
1127    o external_fields_load:
1128      - added this routine to TAF list
1129      - needed to make some common blocks global and additional storing
1130        along the same lines as exf package (checkpoint_lev?_directives.h)
1131    o exf:
1132      updated external forcing package
1133      - bug fixes carried over from ecco-branch
1134        (missing OBCS_OPTIONS.h in two routines)
1135      - enable easy to use "no forcing".
1136      - added exf I/O for atmospheric loading
1137      - added exf I/O for runoff data
1138      - transfered scaling between exf <-> MITgcm to exf namelist
1139    o Adding new verification experiment global_with_exf.
1140      This verification experiment is almost identical to the
1141      global_ocean.90x40x15 experiment, except that it uses
1142      the exf (and cal) package instead of the
1143      external_fields_load routine (cf README file).
1144    
1145    checkpoint46m_post
1146    o modified testscript to return -- when there are no lines of "%MON" output
1147    o added new flag "quasiHydrostatic" for QH mode
1148      and new routine quasihydrostaticterms()
1149    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1150      New routine: mom_u_coriolis_nh()
1151    o fixed sign of non-hydrostatic metric terms in u and v equations.
1152      Depend on correct sign of gravitySign.
1153    o added work.pc* to .cvsignore in aim directories using ifc
1154    o introduced flag for controllin non-hydrostatic metric terms
1155    o removed gravitySign from PARM04
1156    o switched to g77/ifc from pgf77 in aim experiments
1157    
1158    checkpoint46l_post
1159    o made convective adjustment work with pressure coordinates:
1160     - changed the direction of k-loop in convective_adjustment.F for the
1161       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1162     - adjusted the reference pressure k-index in convective_adjustment.F
1163     - adjusted the convection condition in convect.F (in analogy to
1164       calc_ivdc.F)
1165     - convective_adjustment no longer computes anything on the halos
1166     - removed the warnings about negative salinity from find_rho.F and
1167       find_alpha.F; instead the new routine look_for_neg_salinity, called
1168       at the beginning of find_rho, find_alpha, and find_beta, does a
1169       check of the entire slice, if CPP-option
1170       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1171    checkpoint46l_pre
1172    
1173    checkpoint46k_post
1174    o fixed the verification/global_ocean.90x40x15 experiment:
1175     - new bathymetry (the world according to A., JMC, and M.)
1176     - new initial fields and forcing fields (*.bin files)
1177     - new POLY3.COEFFS (for the next release one should switch to a full
1178       equation of state: JMD95P or MDJWF)
1179     - fixed several errors and redundancies in the data file
1180     - experiment uses looped cells
1181     - added matlab directory with diagnostic scripts for plotting of output
1182    
1183    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1184     - read AIM physics parameters from a file (data.aimphys)
1185     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1186    
1187    checkpoint46j_post
1188    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1189    o move wVel computation at the end of the time step, in S/R integr_continuity
1190    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1191    o update timeave pkg for wVel diagnostic.
1192    checkpoint46j_pre
1193    
1194    checkpoint46i_post
1195    o Clean up AIM package (and keep the results unchanged):
1196      include CPP_OPTION and use IMPLICT NONE in all routines ;
1197      declare all the variables _RL ; use _d 0 for all numerical constants.
1198      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1199    
1200    checkpoint46h_post
1201    o cleaned up the use of rhoNil and rhoConst.
1202      - rhoNil should only appear in the LINEAR equation of state, everywhere
1203        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1204        and the dynamical equations are all divided by rhoConst
1205    o introduced new parameter rhoConstFresh, a reference density of fresh
1206      water, to remove the fresh water flux's dependence on rhoNil. The default
1207      value is 999.8 kg/m^3
1208    o cleanup up external_forcing.F and external_forcing_surf.F
1209      - can now be used by both OCEANIC and OCEANICP
1210    checkpoint46h_pre
1211    
1212     Added code to convert surface volume flux (fresh water) into
1213     a mass flux when using P coordinates in the ocean (OCEANICP).
1214     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1215    
1216    checkpoint46g_post
1217    o Include a new diagnostic variable phiHydLow for the ocean model
1218      - in z-coordinates, it is the bottom pressure anomaly
1219      - in p-coordinates, it is the sea surface elevation
1220      - in both cases, these variable have global drift, reflecting the mass
1221        drift in z-coordinates and the volume drift in p-coordinates
1222      - included time averaging for phiHydLow, be aware of the drift!
1223    o depth-dependent computation of Bo_surf for pressure coordinates
1224      in the ocean (buoyancyRelation='OCEANICP')
1225      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1226        Theta, Salinity, and Pressure in the parameter list. This routine is
1227        presently contained in find_rho.F. This routine does not give the
1228        correct density for 'POLY3', which would be a z-dependent reference
1229        density.
1230    o cleaned up find_rho
1231      - removed obsolete 'eqn' from the parameter list.
1232    o added two new verification experiments: gop and goz
1233      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1234    checkpoint46g_pre
1235    
1236  checkpoint46f_post  checkpoint46f_post
1237  o Enable tangent linear (forward mode) gradient checks:  o Enable tangent linear (forward mode) gradient checks:
1238    - extended active file handling to g_... files    - extended active file handling to g_... files

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