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revision 1.41 by heimbach, Fri Jul 13 18:08:14 2001 UTC revision 1.353 by heimbach, Thu Sep 23 17:48:23 2004 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint55c_post
7    o obcs stuff
8      - new runtime flags useOBCSprescribe, useOBCSbalance
9      - re-arranged obcs_calc
10      - moved exf_getobcs to obcs_prescibe_read
11        obcs_prescibe_read is called after ORLANSKI stuff
12        and independent of it (executable can contain all).
13      - updated obcs_check
14      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
15        These may be necessary only if tangential velocities are
16        prescribed at OB, not sure, needs testing.
17    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
18      which simplifies the calls and passes the ifc check-bounds test
19    
20    checkpoint55b_post
21    o add a 2D scalar, Z location, exchange_2 routine.
22    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
23      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
24      affects advect_cs results (for the wrong reason): update output.txt
25    o use a more standard discretization for biharmonic viscosity ;
26     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
27      affects results of dome set-up: update output.txt
28    o fix gad_advection.F (CubedSphere part), back to version 1.23
29    o fix bug in mom_vi_del2uv.F (CubedSphere part).
30    
31    checkpoint55a_post
32    o merged code to
33      * prescribe/read time-dependent open boundaries
34        (works in conjunction with exf, cal)
35      * sponge layer code for open boundaries
36      * each boundary N/S/E/W now has its own CPP option
37        (healthy for the adjoint)
38    
39    checkpoint55
40    o up-to-date adjoint of previous breaks
41      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
42      - global_ocean_ebm: adjoint still needs fix (TLM ok)
43      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
44      - carbon: * remove tr1-related adjoint verification
45                * add ptracer as control variable
46    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
47      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
48    
49    checkpoint54f_post
50    o in verification/carbin/ remove experiment related to
51      ALLOW_PASSIVE_TRACER (array tr1 etc)
52      code_ad/ input_ad/ results_ad
53    
54    o add two new packages
55      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
56        + subject to optimization (memory)
57      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
58        + subject to reordering (many GOTOs in the original code)
59        + so far opps is called for every (i,j) point, and then operates in
60          the vertical; one may want to reorder the scheme in order operate in
61          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
62          fields)
63    o overhaul of IO so that we now have flags for MDSIO and/or MNC
64      - all verification tests compile and run with linux_ia32_g77
65      - defaults are compatible with current input files--nothing
66        should change if you were not previously using MNC
67      - MNC output has been added in numerous places (eg. timeave)
68        but there are still a few writes not yet do-able with MNC
69        (this is in progress)
70      - flags now allow for either/or/both use of MDSIO and MNC and
71        documentation will soon follow
72      - numerous small formatting cleanups for ProTeX
73    o add version info (via BUILD_INFO.h) to MNC and stdout
74    
75    checkpoint54e_post
76    o add two new packages
77      - pp81 (Packanowski and Philander, 1981), Richardson number and
78        stratification dependent mixing
79      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
80      - these scheme operate in a similar manner as KPP (without ghat, of
81        course), however there is only one diffusivity that is used for both
82        temperature and salinity (and passive tracers)ç
83    o add offline package
84    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
85      provided by Stephanie Dutkiewicz
86    o genmake2: add ability to search for C compilers and cleanup test output
87      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
88    
89    checkpoint54d_post
90    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
91    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
92      leading to additional shift by 5 days each year of integration
93       (i.e. leading to considerable offset over the years)
94    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
95    o start with no AB and no initial filtering (staggerTimeStep):
96      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
97    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
98      (external loading & cpl import/export stay in forward_step.F)
99    o update coupling interface to work with new staggerTimeStep
100    o change MDSIO ptracers_pickup.
101    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
102    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
103    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
104    
105    checkpoint54c_post
106    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
107      this affects (truncation error) output.txt of test-exp:
108       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
109    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
110    o change Qnet to always be the net heat flux, (+upward).
111      affects (truncation error) output of natl_box exp.: updated
112    o define the max number of passive tracers in PTRACERS_SIZE.h
113    o start to test mnc routinely in exp0
114    o add sea-ice loading (sIceLoad) as a new forcing field.
115    
116    checkpoint54b_post
117    o add testreport "-j JOBS" option for parallel builds (tested and pretty
118       impressive on Altix and Opteron systems)
119    o diagnostics can now write NetCDF files through the mnc package
120    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
121    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
122    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
123      affects (truncation error) output of lab_sea & natl_box exp.: updated
124    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
125    
126    checkpoint54a_post
127    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
128    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
129    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
130    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
131      + internal_wave (shift in writing cg2d_ini_res)
132    checkpoint54a_pre
133    
134    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
135      - modified verification/lab_sea and natl_box_adjoint accordingly
136    
137    checkpoint54
138    checkpoint53g_post
139    o prepare splitting of thermodynamics: store convect.counter in common block
140    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
141      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
142    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
143    o new parameter "nShapS": allow to treat differently S from T (nShapT)
144    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
145    o restore adjointability
146    
147    checkpoint53f_post
148    o modifications that affect AIM experiment results (update output.txt):
149      - no advection of S at top interface Nr (pkg/generic_advdiff)
150      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
151    o AIM pkg:
152      - include stability function into surf.Flux derivative relative to Tsurf
153      - calculate clear-sky radiation & surface temp. change (for diagnostics)
154    
155    checkpoint53e_post
156    o merged cylindrical coord configuration
157    o added rotating_tank experiment
158    checkpoint53e_pre
159    
160    checkpoint53d_post
161    o faulks upgraded: re-generate output.txt that have changed:
162       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
163    o Added Bryan and Lewis, 1979, vertical diffusivity profile
164    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
165    o added Sadourny discretization of Coriolis
166      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
167      - re-enabled use of omega3 (useAbsVorticity)
168    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
169      vector-invariant equations
170      - note: does *NOT* yet use same variable visc. for no-slip BC's.
171    o recoded the lateral boundary conditions for non-hydrostatic w, this time
172      hopefully without new bugs
173      - still to do: biharmonic friction for non-hydrostatic w
174    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
175    o regenerated output for global_ocean_ebm (using -ieee)
176    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
177      of mom_common/
178      - simple re-arrangement of instructions within computing loop
179    checkpoint53d_pre
180    
181    checkpoint53c_post
182    o new version of coupler for AIM+thSIce and Ocean models
183     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
184     - land: change Evaporation of snow
185     - aim with thSIce: fix bug in snow-precip.
186    o changes to calc_gw.F
187     - bug fix for w^2 term near the bottom boundary
188     - (hopefully) improve the lateral slip boundary condtions for use with
189        partial/looped cells
190      - because the bug fix changes two verification experiments anyway (exp5
191        and plume on slope), change the lateral boundary condition from half slip
192        to the value of no_slip_sides
193    o ebm package wasnt quite up to the parallel task. Fixed that.
194    o Adjoint of EBM package + verification
195      * TLM OK
196      * ADM not sufficient accuracy yet (needs further testing)
197    
198    checkpoint53b_post
199    o Commiting new energy balance model to repository
200      * package is pkg/ebm
201      * verif. is verification/global_ocean_ebm
202      * references are in ebm_driver.F
203    C      * X. Wang, P. Stone and J. Marotzke, 1999:
204    C        Global thermohaline circulation. Part I:
205    C        Sensitivity to atmospheric moisture transport.
206    C        J. Climate 12(1), 71-82
207    C      * X. Wang, P. Stone and J. Marotzke, 1999:
208    C        Global thermohaline circulation. Part II:
209    C        Sensitivity with interactive transport.
210    C        J. Climate 12(1), 83-91
211    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
212    C        Destabilization of the thermohaline circulation
213    C        by atmospheric eddy transports.
214    C        J. Climate 7(12), 1870-1882
215    o Will need long integration testing.
216    checkpoint53b_pre
217    
218    o created pkg/mom_common in preparation for variable viscosity code
219    o renamed and split ini_mnc_io
220    o pkg/land: only liquid water can diffuse or run-off
221    o AIM using land: soil wetness availability account for snow
222    o added printMapIncludesZeros to EEPARMS namelist
223    
224    checkpoint53a_post
225    o restore TAMC compatiility for exf_constants.h
226      (no usage of _d in .h)
227    o Additional storing in KPP in an attempt to fix
228      TAMC problem with adjoint of KPP code.
229      (no success...)
230      Identical code works fine with TAF.
231    o Fixed verification/natl_box_adjoint experiments.
232      Initial conditions for Experiments 4 and 5 are now
233      set to "SEAICE_initialHEFF=0", which is more reasonable,
234      and hence gives results closer to that of Experiment 2.
235      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
236    
237    checkpoint53
238    o stable checkpoint with up to date adjoint
239      TLM tests only run for 1st grdchk at the moment. Its unclear if
240      this is a code problem or a problem with resetting code for g_
241      variables that is being autogenerated wrong.
242      Otherwise:
243       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
244       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
245         are both still in chaos following their security messes.
246    
247    checkpoint52n_post
248    o various build (mostly genmake2) changes including:
249      - ability to build/run more easily within Cygwin and MacOS X
250      - more complicated Makefiles with a stronger dependence on Gnu Make
251    o pkg/seaice modifications
252      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
253        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
254        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
255      - changed proxy for geostrophic velocity and updated
256        verification/lab_sea/results/* accordingly
257      - removed ADI dynamic solver from pkg/seaice
258      - replaced all occurrences of 1/CSTICE or 1/CSUICE
259        they caused a segmentation fault under certain circumstances
260      - removed unused field WATR
261    o bug fix in exf-package:
262      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
263         now reflect that.
264    o small fixes in the cal-package:
265      - set reference date to first of January for the 'model'-calendar
266      - failing of cal_CheckDate in cal_FullDate now actually results in a
267        warning
268    o small modifications in exf-package to increase flexibility:
269      - change climtempfreeze from a constant to a runtime parameter that
270        is specified in data.exf_clim (default = -1.9)
271      - introduce runtime parameter windstressmax (default = 2.0) that is
272        specified in data.exf
273    o fix in pkg/thsice:
274      - update Evap (Tsf changes) to be consistent with Latent heat flux
275      - maintain snow precipitation unchanged (even if Tsf >=0).
276     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
277    
278    checkpoint52m_post
279    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
280      this does not change any of the results, because myIter=0 in swfrac always
281      lead to jwtype=2 (the default anyway), but the call makes little sense
282      as a default
283    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
284    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
285      atmospheric model (AIM) to use it ; add a "slab ocean" component.
286    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
287    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
288    o extending useSingleCpuIO option to work with new exch2 I/O format
289      - old-style, missing-tile I/O is still accessible by defining CPP
290        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
291    o monitor package can write to NetCDF files and/or STDOUT
292    o fix re-definition bug in MNC_GRID_INIT_ALL()
293    o doc/api_reference added
294      - a framework for building an API Reference Manual using all
295        the "protex" comments embedded in the code
296      - see pkg/generic_advdiff, pkg/mnc for examples
297    o MNC:
298      - make myThid the last argument for all subroutines
299      - new default for the grid files: NO halos
300      - add useMNC and other run-time flags
301      - separate per-file-group handling of the unlimited dimension
302      - early initialization of MNC w/ flags read at the eeboot stage
303        and lookup tables set in initialize_fixed
304      - write all MNC output to a freshly-created directory
305    o thermodynamics sea-ice (thsice) is now tested with testreport.
306    o test exp. advect_cs: use the standard cs32 grid ; update output.
307    o Added functionality to grdchk:
308      pick global i,j,k position (or nearest wet) where to perform check.
309    
310    checkpoint52l_post
311    o new land formulation:
312      a) use ground enthalpy as prognostic variable to ensure exact
313         energy conservation.
314      b) account for water temperature and for latent heat of freezing
315         in all processes (rain, run-off, ground storage)
316      c) compute surface and ground temperature implicitly.
317    o aim_v23 modification for new land model:
318      a) Treat separately land / ocean / sea-ice surface fluxes
319         to allow implicit computation of land & sea-ice surface temp.
320      b) add snow precipitation.
321    checkpoint52l_pre
322    
323    o fix problem (when 1 tile is empty) in min/max monitor.
324    o fix bug in timeAve (u,vZetatave in common block)
325    o no restoring terms under ice for pkg/seaice
326    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
327    o bug fix for pkg/seaice pickups
328    o change MNC call locations and add coordinate attributes
329    o mask vorticity at the corner ; affects global_ocean.cs output
330    o fix ini_curvilinear_grid ; test CS experiments with mpi
331    o aim.5l_cs: modify sea-ice fraction input file ; update output
332    o exf: Adding simple range check routine for exf fields after read
333    
334    checkpoint52k_post
335    o removed top-level directory "diags"
336      - we migrated these functions to pkg/timeave a long time ago
337    o fixed bug introduced in pkg/monitor
338    o accuracy ctrlprec = 32 insuffient for gradient checks using
339      averaged fields (I/O via cost_averages)
340      -> use ctrl.h in active_file*.F to control I/O precision.
341    o paramter list of CALL ADTHE_MAIN_LOOP
342    o added initial do_the_model_io to ecco
343    o set all ...Freq to zero after cost_final
344      taveFreq, dumpFreq, pChkptFreq
345    o MAIN and ECCO differentiability restored
346    
347    checkpoint52j_post
348    o fix nchklev in tamc.h for global_ocean...
349    o Bringing flow and store directives up-to-date
350    o Really weird thing!
351      call do_the_model_io from the_main_loop with parameters
352      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
353      TAF places a faulty re-call of initialise_varia
354      after cost_final call which should not be there!
355    checkpoint52j_pre
356    
357    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
358      error messages
359    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
360    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
361      debug output
362    o modfied mdsio_writefield.F to handle non-global files under exch2
363    o update AIM Cubed-Sphere exp (aim.5l_cs):
364      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
365    o update AIM Equatorial Channel exp:
366      use standard aim_v23 pkg and change the SST fields to be more realistic.
367    o globalFile now works with exch2
368    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
369      mon_vort3.F to make exch2 friendly with >1 tile per cube face
370    o limit timeave output for hi-res integrations
371    
372    checkpoint52i_post
373    o removed CPP_EEOPTIONS.h from verification/*/code
374    o updated the tiling for global_ocean_pressure
375    checkpoint52i_pre
376    
377    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
378      the old pkg/aim).
379    
380    checkpoint52h_pre
381    o shortened offending lines in exch2_send_rx?.template
382    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
383    o genmake2: add build & execute test for NetCDF code
384    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
385      old grid files, moved CPP_EEMACROS.h to pkg/exch2
386    o added useSingleCPUIO flag to monitor.F and mon_out.F
387    o added temporary hack for sea-ice dynamics on the cube:
388      metric terms are ignored and it is assumed that
389      there is no sea-ice on cube faces 1, 2, 4, and 5.
390    
391    checkpoint52f_post
392    o added exch2 cube routines to pkg/exch2
393    o modified hs94.cs-32x32x5 to use it
394    o added new grid files to hs94.cs-32x32x5
395    checkpoint52f_pre
396    
397    checkpoint52e_post
398    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
399      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
400    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
401      to work with implicit vertical advection and AB ;
402    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
403    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
404     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
405    checkpoint52e_pre
406    
407    o fix bug in impldiff when Nr=1 or Nr=2.
408    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
409    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
410    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
411      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
412    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
413    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
414    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
415    
416    checkpoint52d_post
417    o re-tiled many expts to allow comparison in multi-processor mode
418      - updated output accordingly
419      - changed hs94.128x64x5 to use intial T from file rather than use the
420        random number generator
421    o add infrastructure in model routines for fizhi and gridalt packages
422    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
423    o changes to permit hi-res, cubed-sphere, configuration
424      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
425      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
426      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
427        of surface winds for the cube
428      (A verification experiment, based on global_ocean.cs32x15, but with
429       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
430       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
431       complete with example surface forcing files and matlab scripts to look
432       at the output and compare it with that of global_ocean.cs32x15.)
433    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
434       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
435       to conform to the common rule.
436    o check-in the first version of the coupler + interfaces for multi-components
437       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
438       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
439       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
440       - ocean and atmos. share the same horizontal grid (no interpolation).
441       - exchanges between component and coupler is done in forward_step
442    o new verification experiment, cpl_aim+ocn:
443       coupled ocean - AIM atmosphere on cs32 grid.
444    
445    checkpoint52d_pre
446    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
447    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
448    
449    checkpoint52c_post
450    o Fixing OPTIONS files for use of exf:
451      - ALLOW_ECCO not needed
452      - ECCO_CPPOPTIONS.h should not be included from
453        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
454        as has been the case in the past
455      - All cal/exf related options are currently set in
456        single header file. Should remain so until we
457        agree on a consistent new policy.
458    o Removed all CPP options for cal package.
459      cal has no more CPP options.
460    o modified STOREs in GAD_ADVECTION
461    o corrected key comp. for passkey
462    
463    checkpoint52b_post
464    o new version: "thsice" of thermodynamic sea-ice pkg:
465     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
466     - modify fluxes but do not change theta directly;
467     - light cleaning of bulk_force pkg (still needed with thsice).
468     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
469       + output_thsice.txt to test thsice & bulk_force pkgs.
470    o put back grid & coriolis monitor output.
471    checkpoint52b_pre
472    
473    o call "do_the_model_io" at the beginning (=> dump initial state)
474    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
475    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
476      (need info on NUMBER_OF_PTRACERS)
477    o missing PTRACERS headers in some routines
478    o default tamc.h in pkg/autodiff supposed to crash
479      to ensure proper customization
480    
481    checkpoint52a_post
482    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
483      - moved surfaceTendencyTice from pkg/seaice to main code
484      - subroutine FREEZE_SURFACE now limits only surface temperature
485        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
486        => new output.txt for global_ocean.cs32x15 & global_with_exf
487      - keep the old version of FREEZE for backward compatibility;
488        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
489      - corresponding modifs for TAF directives
490    o added surface flux output variables to TIMEAVE_STATVARS
491    o time-averaged output for pkg/ptracers
492    o fix problem with ECCO-related divided adjoint
493      snapshot file was missing some ad-variables,
494      but no warning issued by TAF
495    
496    checkpoint52a_pre
497    o some bug fixes for #undef REAL4_IS_SLOW
498    
499    checkpoint52 = ecco_c52_e35
500    o after testing adjoints of checkpoint51u_post
501    
502    checkpoint51u_post
503    o this is the post-merge tag of the ecco-branch
504      (needs another clean checkout and re-testing)
505    o various natl_box_adjoint configs and results
506      but no input fields
507    o obcs adjoint not yet merged!
508    o adding ECCO global 1x1 and 2x2 degree configs
509    o updated/extended some store directives for seaice
510    o pkg/ecco now containes ecco-specific part of cost function
511    o top level routines the_main_loop, forward_step
512      supersede those in model/src/
513      previous input data.cost now in data.ecco
514      (new namelist ecco_cost_nml)
515    o in ctrl/ cleaned some cross-dependencies and updated CPP options
516    
517    checkpoint51t_post
518    o this is the pre-merge tag of the ecco-branch
519    
520    checkpoint51s_post
521    o cleanup: removed various obsolete #define-s
522    o pkg/grdchk
523      - renamed 'ph-grd 3' to 'grad-res'
524      - merged from ecco-branch
525        (remaining bug fixes for obcs gradient checks)
526      - additional high-precision output for testreport
527        (grep for 'precision_grdchk_result')
528    
529    checkpoint51r_post
530    o cleaned up or removed CPP_OPTIONS.h files
531    o updated results for some of the tests to reflect the new
532      optfiles (-ieee: -O0 instead of -O3)
533    
534    checkpoint51q_post
535    o cd_code:
536      - moved cd_scheme.F -> cd_code_scheme.F
537      - separate read_checkpoint from cd_code_ini_vars.F
538      - separated cd_code part from write_checkpoint
539      - updated AD_SOURCE, generated .flow
540      - added CD_CODE_VARS.h to the_main_loop
541      - Moving cd_code specific store dir.s to pkg/cd_code
542    o ctrl package totally restructured
543      - pack/unpack now optional and decoupled from
544        xx_/adxx_ I/O
545      - ctrl_pack/unpack cleaned
546        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
547      - confined inclusion of AD_CONFIG.h to where necessary.
548    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
549    
550    checkpoint51p_post
551    o create initial cd_code package
552      - WARNING: the initialization of fields within packages
553        is broken because INI_FIELDS (where READ_CHECKPOINT is
554        called) is called *before* PACKAGES_INIT_VARIABLES.
555        This seems to be backwards since
556        1) its important to initially zero the entire field including
557           the "halo" region
558        2) zeroing needs to be done *before* reading pickup info
559           and the pickup call might or might not happen in any
560           particular run
561      - this needs an overhaul for R2
562    o cleanup verification/*/code/GMREDI_OPTIONS.h
563    o cleanup testreport
564    
565    checkpoint51o_post
566    o bringing AD-related verif's up to date with genmake2
567      - carbon/
568      - global_ocean.90x40x15/
569      - hs.94.1x64x5/
570      - (front_relax/ )
571    o (more) consistent directory structure for AD-related verif.'s
572    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
573    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
574    o bug fix in find_alpha.F for MDJWF:
575      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
576        change rho -> rho-rhoConst
577      - replace call find_rho to find_rhonum
578    o initialisation of rFlx extended to full array (required by TAF)
579      and shifted to thermodynamics
580    o removed PTRACERS.h in ptracers routine
581    o added surfacetendencyPtr to S/R parameter list pracers_forcing
582    o Correcting initialisations for fVerU, fVerV.
583    o helping TAF to recognize dependency on kUp for
584      fVerU, fVerV
585    o Replacing delZ by delR in pkg/ctrl/
586    checkpoint51o_pre
587    
588    o undid all of cp51 pending some cleanups and discussion
589    o added the [#include "AD_CONFIG.h"] statement to all files that need
590       it for adjoint/tl #defines
591     o re-worked the build logic in genmake2 to support AD_CONFIG.h
592     o removed tools/genmake since it no longer works
593    
594    checkpoint51n_post
595    o modifications to make FREEZE flux visible to pkg/kpp
596      - moved surfaceTendencyTice from pkg/seaice to main code
597      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
598      - subroutine FREEZE now limits only surface temperature
599        (this means new output.txt for global_ocean.90x40x15,
600         global_ocean.cs32x15, and global_with_exf)
601    o added surface flux output variables to TIMEAVE_STATVARS
602    
603    checkpoint51n_pre
604    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
605    o added [#include "AD_CONFIG.h"] to all files that use the following
606      defines:
607      - ALLOW_ADJOINT_RUN
608      - ALLOW_TANGENTLINEAR_RUN
609      - ALLOW_ECCO_OPTIMIZATION
610    
611    checkpoint51m_post
612    o incorporating changes to get TAMC/TAF working in genmake2
613      - added new TAMC/TAF targets to the Makefile
614      - various cleanups related to package handling
615      - these changes should have no impact on the forward model
616    
617    checkpoint51l_post
618    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
619     - faster algorithm for cal_addtime.F
620     - higher precision arithmetic, where needed
621     - pkg/exf *startdate variables changed from calendar date to
622       model integration time
623    
624    checkpoint51l_pre
625    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
626    o enable to apply restoring on S & T only in a latitude band.
627    o update output (external_forcing_surf modif. change truncation errors)
628       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
629    
630    checkpoint51k_post
631    o change default to: useNHMTerms=.FALSE.
632     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
633       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
634     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
635        exp1, ideal_2D_oce
636     - change data file of oceanic exp (leave the results unchanged for now)
637       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
638    o set gravitySign automatically according to the vertical coordinate used
639      (and change sign: back to "logical" value: +1 when R increases downward)
640    o added an include barrier to the default CPP_OPTIONS.h and
641      removed the #include "PACKAGES_CONFIG.h" from it
642    o fix a bug in mom_fluxform (from chk51j_post)
643    
644    checkpoint51j_post
645    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
646    o adjusted some flow directives (dynamics, thermodynamics)
647    o added cubed-sphere case to test cost function
648    o heckpoint_lev?_directives.h now include
649      pkg-specific directives, whenever those are enabled.
650    o Moving pkg-specific flow directives to corresponding pkg
651      Moving pkg-specific differentiation list to corresponding pkg
652      Moving pkg-specific checkpoint-lev storing to corresponding pkg
653      ---> conventions are
654           - pkg_ad.flow
655           - pkg_ad_diff.list
656           - pkg_ad_check_lev?_dir.h
657    
658    checkpoint51i_post
659    o merge of the branch-genmake2
660      - knowingly breaks the older genmake
661      - automatic generation of all ALLOW_${PKG_NAME} defines
662      - new testreport supersedes older testscript
663    o large number of package inclusion and header cleanups
664    checkpoint51i_pre
665    
666    o new output for adjoin of global ocean vector invariant
667    o fix for checkpoint of thermodynamic seaice and bulk_force
668    o Steph gchem various cleanups
669    
670    checkpoint 51h_pre
671    o fixed some single quotes
672    o modify gchem pkg to be more versatile
673    o modifications to clean up dic pkg
674    o add pkg/cfc
675    
676    checkpoint51g_post
677    o provide links for ARPACK and ADM*TLM
678    o start removing verification/vero/
679    o update AD-related stuff
680      (in particular some IF-statements in model/src/ routines)
681    o adding to verification/global_ocean.90x40x15/ adjoint of
682      vector invariant setup
683    
684    checkpoint51f_post
685    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
686    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
687      of tracer Green's fucntions for ocean inversion project.
688    
689    checkpoint51f_pre
690    o Added on-the-fly spatial interpolation capability
691        "USE_EXF_INTERPOLATION" to pkg/exf.
692      - This is a temporary Cartesian-grid hack until
693        the super-duper ESMF coupler becomes available.
694      - See verification/global_with_exf/README for usage example.
695      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
696        flags and modified pkg/seaice accordingly.
697    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
698        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
699        non-local transport term.
700    
701    checkpoint51e_post
702    o pkg/mom_vecinv:
703      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
704      - add time-ave diagnostic of vorticity advection.
705    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
706    o atmospheric geopotential: - include water vapor effect;
707                                - use p^kappa in p* scaling.
708    o land pkg: read initial state from files.
709    o AIM : add stratospheric drag in the upper level
710    
711    checkpoint51d_post
712    o change function ILNBLNK (=> last non-blank char.) to return zero
713      (instead of the string length) when the string. char is empty
714    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
715    o modif's to restore TAMC compatibility
716      - avoid "_d" constructs in PARAMETER declarations
717      - avoid interrupting lines by comment lines
718    o Use cluster local disks for purely local I/O
719      vs. globally visible disks needed for ctrl stuff
720      (merged from ecco-branch)
721      - new active_file_loc... and mdsio_..._loc routines
722      - affected packages: autodiff, ctrl, grdchk, mdsio
723    
724    checkpoint51c_post
725    o introducing integer flag debugLevel
726      - debLevZero: suppress all output
727      - debLevA: standard
728      - debLevB: equivalent to current debugMode=.TRUE.
729    o introducing pathname variable mdsioLocalDir for mdsio
730      that can be specified at runtime
731      (relevant for cluster I/O to local disk)
732    `
733    >>>checkpoint51b_post
734    adjoint of ptracers
735    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
736    o extended state in checkpoint_lev?, etc.
737    o alternative ctrl/cost with tr1 or ptracer
738    o new comlev1_bibj_ptracers
739    o new ptracers.flow
740    o made ptracers_forcing same as external_forcing_s
741    o added verification for adjoint with ptracers
742      - adm. grdchk fail so far
743      - tlm. grdchk OK
744      - checked tapelev/comlev recomputations: OK
745    <<<checkpoint51b_pre
746    
747    checkpoint51a_post
748    o added code for biogeochemistry package
749      - new pkgs: dic, gchem
750      - new subroutine in ptracers
751    o modify code for biogeo packages
752      - in model/src and pkg/ptracers
753    
754    checkpoint51
755    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
756      - autodiff, ctrl, exf, grdchk, seaice
757      kept separate packages
758      - cost, ecco, obcs
759    o updating verification/internal_wave, verification/lab_sea
760      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
761    
762    checkpoint50i_post
763    o Preparing next differentiable checkpoint and sync
764      of MAIN vs. ecco-branch
765      - 1st step: this one is differentiable
766      - 2nd step: next(! not this) checkpoint will have updated packages
767                  from ecco-branch)
768    
769    checkpoint50h_post
770    o new package "land": provide surface BC for AIM.
771    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
772    o AIM: use true log-P extrapolation for near surface temp (= as in
773        F.Molteni paper) ; update aim.5l_cs output.
774    o New variable in PARM03 for more flexible pickups
775    o somewhat cleaned package initialisation sequence for
776      ctrl/ cost/ ecco/ in packages_... routines
777    
778    checkpoint50g_post
779    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
780      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
781      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
782        made the default because of faster convergence than ADI
783    
784    checkpoint50f_post
785    o exf totally restructured
786      - replaced all exf_set_ routines by one generic exf_set_gen.F
787        and made sure it's still differentiable
788      - split exf_getffields.F into new exf_bulkformulae.F
789      - exf_inscal_/exf_outscal_ suffixes consistent with field names
790      - updated adjoint/makefile and relevant verif. accordingly
791    
792    checkpoint50f_pre
793     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
794          + change Evap over land. (update aim.5l_cs output)
795     o added missing .cvsignores and made uniform across expts
796     o changed configuration of tidal_basin_2d expt
797     o added pkg/debug functions for tracing code in fatal crashes
798     o tidied pkg/monitor to use MONITOR_OPTIONS.h
799     o new fn in pkg/monitor to stop model if solution grows too big
800     o removed lots of single quotes from comments
801    
802    checkpoint50e_post
803    o make KPP work with PTRACERS
804     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
805       nearly a copy of kpp_transport_s
806     - there is no analogue to SurfaceTendencyS, so I have to use
807       gPtr(of the surface layer) instead
808    o add a new platform SunFire+mpi (SunFire 15000) to genmake
809    checkpoint50e_pre
810    
811    checkpoint50d_post
812    o change kpp output from multiple-record state files to single-record state
813      files analogous to write_state.F
814    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
815      analogous to the cg2d-related output.
816    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
817      so that writing to internal file fn (with length 512) fails.
818    checkpoint50d_pre
819    
820    checkpoint50c_post
821    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
822    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
823    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
824    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
825    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
826    
827    checkpoint50c_pre
828    Merging from release1_p13:
829    o bug fix for pkg/seaice dynamic solver
830    o Added SEAICE_initialHEFF to pkg/seaice
831    
832    checkpoint50b_post
833    o store u*,v* in gU,V instead of in guNm1,gvNm1
834    o in order to put the momForcing out of the Adams-Bashforth:
835      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
836      to timestep.F
837    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
838    o re-generate output for highly sensitive test-exp:
839       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
840    
841    checkpoint50b_pre
842    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
843    o corrected CPP option mismatch in exf_Bulk... functions for case
844      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
845    
846    checkpoint50a_post
847    o Bug fix for merging between c50 and KPP.
848      ikey was passed from thermodynamics to kpp_calc via
849      common block rather than being recomputed in kpp_calc,
850      in contradiction with new key itdkey.
851      New key ikppkey created, and tamc.h headers updated.
852    
853    checkpoint50
854    - 2nd step of merge with ecco-branch:
855      merge changes in ecco-branch back into main trunk
856    - bug fix in find_alpha
857    - more storing in gmredi_calc_tensor.F, kpp_routines.F
858    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
859    - merged some sliced AD support routines
860    
861    checkpoint49
862    merged from ecco-branch:
863    o exf:
864      - Enable initialisation of forcing fields to constant
865        (runtime) values.
866      - in exf_getffields.F
867        Reduce i-/j-loop to interior domain, discarding overlaps.
868        That also fixes wrong TAF-key computations for key_1, key_2
869        with bulf formulae.
870      - exf_init.F modify #ifdef for exf_init_evap
871      - exf_getffieldrec.F, ctrl_getrec.F
872        The following INT-usages are not safe:
873          fldsecs  = int(fldsecs/fldperiod)*fldperiod
874          fldcount = int(fldsecs/fldperiod) + 1
875        and were modified.
876    o autodiff: checkpoint_lev...
877      - updated storing for bulk formulae (some arrays were missing)
878      - added state for seaice package
879      - synchronized with main branch
880    o DIVA:
881      Modif.s in
882      - the_main_loop.F
883      - the_model_main.F
884      and added cost_final_restore.F cost_final_store.F
885      o With these changes, it is possible to fully separate
886        the first forward run to compute the cost function (mdthe_main_loop)
887        and adjoint runs over individual DIVA intervals (adthe_main_loop)
888        into separate model executions.
889        This enables better tuning of DIVA to given queue sizes.
890      o Loss of cost function value in consecutive DIVA runs is
891        fixed by storing to 'costfinal' file.
892      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
893        beginning/end of adjoint integration is accounted for.
894      The current changes apply to TAF-1.4.26.
895      TAF has one remaining bug, requiring one manual change
896      (see MITgcm manual).
897    o cal: synchronized between MAIN and ecco-branch
898    
899    checkpoint48i_post
900    o Changes to restore differentiability of code w.r.t. previous tag
901      (mostly adding new routines to make list and replacing
902      pressure by totPhiHyd).
903    o Updated and merged grdchk package
904      - has both ADM and TLM checks
905      - works for single- and multi-proc.
906      - output cleaned
907      - worked successfully for parallel DIVA
908    o genmake:
909      - Adding -platform=SP4
910      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
911    o Modif. for DIVA:
912      ctrl_unpack should not be called in intermediate DIVA interval.
913      (similar thing would apply for active files such as
914      tbar, sbar, psbar, which should not be reinitialised;
915      only relevant for ecco-branch)
916    
917    checkpoint48h_post
918    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
919    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
920    o Added SEAICE_initialHEFF to pkg/seaice
921    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
922    
923    checkpoint48g_post
924    --- EOS:
925    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
926      store total Potential in totPhyHyd for diagnostics & EOS.
927    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
928    --- Pressure/geopotential gradient:
929    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
930    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
931      ( changes results of global_ocean_pressure )
932    o NLFS + z-coord.: add eta*Rho' contribution.
933    o accurate phiHyd when using interface-W at the middle between 2 centers
934     ( changes results of ideal_2D_oce )
935    o includes r* 2nd term in potential gradient.
936    
937    checkpoint48f_post
938    Merging from release1_p12:
939    o Modifications for using pkg/exf with pkg/seaice
940      - improved description of the various forcing configurations
941      - added basic radiation bulk formulae to pkg/exf
942      - units/sign fix for evap computation in exf_getffields.F
943      - updated verification/global_with_exf/results/output.txt
944    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
945      (SBO) core products, including oceanic mass, center-of-mass,
946      angular, and bottom pressure (see pkg/sbo/README.sbo).
947    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
948      to avoid negative values in shallow regions.
949      - updated verification/natl_box/results/output.txt
950      - updated verification/lab_sea/results/output.txt
951    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
952    o Added useSingleCpuIO option (see PARAMS.h).
953    o Updated useSingleCpuIO option in mdsio_writefield.F to
954      work with multi-field files, e.g., for single-file pickup.
955    o pkg/seaice:
956      - bug fix in growth.F: QNET for no shortwave case
957      - added HeffFile for specifying initial sea-ice thickness
958      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
959    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
960      kpp_transport_t.F, forward_step.F, and the_main_loop.F
961    o pkg/seaice:
962      - adjoint-friendly modifications
963      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
964    
965    checkpoint48e_post
966    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
967    o dynamics: change definition of computational domain & adapt mom_fluxform
968      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
969    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
970        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
971        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
972        global_ocean.90x40x15 global_with_exf global_ocean_pressure
973        inverted_barometer solid-body.cs-32x32x1
974      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
975    
976    checkpoint48d_post
977    o in preparation for r*:
978     a) use pre-computed gradient of hydrostatic potential:
979        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
980     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
981        => affects results of glob_oce_pressure (different truncation error)  
982      update output.txt of ideal_2D_oce & global_ocean_pressure
983    
984    checkpoint48d_pre
985    o in preparation for r*:
986      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
987      pass the 2 comp. of the grad. as arguments to momentum S/R.
988      but for the moment, only used if it does not change the results.
989    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
990    
991    checkpoint48c_post
992    Modifications in treatment of initial flux forcing controls
993    to avoid extra storing of flux fields.
994    
995    checkpoint48c_pre
996    o Added tidal_basin_2d experiment (currently 1D!)
997    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
998    
999    checkpoint48b_post
1000    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1001     (modification to pressure gradient not yet implemented)
1002    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1003      (for U & V) that are used for vertical advection of momentum.
1004    
1005    checkpoint48a_post
1006    o In preparation for r*, use temp. array to compute vertical transport
1007       in flux-form momentum pkg. => change results of few test-exp.
1008      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1009                        lab_sea, natl_box & plume_on_slope
1010    
1011    checkpoint48
1012    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1013    
1014    checkpoint47j_post
1015    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1016    o moved adexch from forward_step to addummy_in_stepping
1017    o added exch in ctrl_map_...
1018    o aveFreq.=0. at end of cost_final to avoid overwrite in
1019      reverse checkpointing loop
1020    o Yet more changes in gmredi:
1021      * adgmredi_calc_tensor
1022        avoiding all recomputation of gmredi_slope_limit
1023      * adgmredi_x/y/rtransport
1024        added flag for excessive storing to avoid recomp. of
1025        u/v/rtans, dTdx/y/z
1026        -> this is not really necessary and very memory-consuming
1027      * adgmredi_slope_psi:
1028        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1029      * gmredi_slope_limit
1030        re-activated full calculation of taperfct for case 'ac02'
1031    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1032    
1033    checkpoint47i_post
1034    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1035    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1036      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1037    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1038    o gmredi: fix few bugs.
1039    
1040    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1041    This will be a good checkpoint to plug into the ecco-branch.
1042    o few modif.'s to get latest version adjointed
1043      (mainly kick out code in ini_linear_phisurf)
1044    o modif's to run adjoint with exactConserv
1045    o case GM_BOLUS_ADVEC should be cleaned
1046      S/R gmredi_slope_psi should be cleaned
1047    o verification/carbon now has exactConserv=.TRUE.
1048    
1049    checkpoint47g_post
1050    o time-average AIM output: becomes independent from statvars time-average
1051      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1052    o After TAF bug fix:
1053      Tested adjoint of gmredi package.
1054      Tests were done with checkpoint47 rather than with latest
1055      checkpoint47f_post since the latter is broken for the adjoint
1056      verification/carbon/ contains both ADM and TLM gradient checks.
1057    Here they are, before they get changed/lost/stolen.
1058    Mostly modif.'s to fix numerical sensitivities.
1059    Gradient checks OK for
1060    - GM_taper_scheme:
1061      * clipping
1062      * ac02
1063      * linear
1064      * glw91
1065      * dm95
1066      * ldd97
1067    - GMREDI_OPTIONS:
1068      * GM_VISBECK_VARIABLE_K
1069      * GM_NON_UNITY_DIAGONAL
1070      * GM_EXTRA_DIAGONAL
1071      * GM_BOLUS_ADVEC
1072    in conjunction with data.gmredi parameters to be checked in
1073    in a few minutes under verification/carbon/code/
1074    
1075    checkpoint47f_post
1076    Merging from release1_p10:
1077    o modifications for using pkg/exf with pkg/seaice
1078      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1079        and SEAICE_EXTERNAL_FLUXES
1080      - pkg/exf CPP options EXF_READ_EVAP and
1081        EXF_NO_BULK_COMPUTATIONS
1082      - usage examples are Experiments 8 and 9 in
1083        verification/lab_sea/README
1084      - verification/lab_sea default experiment now uses
1085        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1086    
1087    checkpoint47e_post
1088    o created a tag prior to creating a branch
1089    
1090    checkpoint47d_post
1091    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1092      at the bottom boundary had an erroneous half slip boundary condition
1093    o added bottom drag and no slip boundary condition capabilities to
1094      oceanic pressure coordinates code
1095    o added new verification experiment global_ocean_pressure, this experiment is
1096      also described in the tutorial section of the manual
1097    checkpoint47d_pre
1098    
1099    checkpoint47c_post
1100    o Added a verification experiment for a global cubed-sphere ocean run
1101      -  verification/global_ocean.cubed32x32x30
1102      -  uses pkg/therm_seaice and pkg/bulk_forcing
1103    
1104    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1105    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1106      when using P-coordinate; only implemented for atmospheric config.
1107    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1108      NOTES: requires option NONLIN_FRSURF to be "#define".
1109    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1110    
1111    checkpoint47b_post
1112    Merging from release1_p9:
1113    o pkg/seaice
1114      - removed GOTO's and added taf directives
1115      - double precision constants to reduce the g77 (Linux)
1116        to F77 (SGI) differences reported in release1_p8
1117    o tools/genmake
1118      - added SGI options
1119    o verification/testscript
1120      - updated to that of checkpoint47a_post
1121    o verification/global_ocean.90x40x15/input/eedata
1122      - modified for SGI f77 compatibility
1123    o verification/lab_sea
1124      - added description of sea-ice model
1125      - added missing matlab routines
1126      - added test of thermodynamics parallelization
1127    
1128    checkpoint47a_post
1129    o new pkg: aim_v23
1130     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1131       for now, keep the same surface forcing as before.
1132     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1133     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1134     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1135    o add diagnostic of surface correction term in monitor output
1136    
1137    o bulk_force and therm_seaice
1138    - Two packages:  bulk_force (Bulk forcing)
1139      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1140    - Earlier integration from Stephaine Dutkiewicz
1141      and Patrick Heimbach.
1142    - Two ifdef statements for compile time,
1143       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1144    
1145    checkpoint47
1146    differentiable version of checkpoint46n_post
1147    o bug fix in quasihydrostaticterms
1148    o * "clean" adjoint code (in terms of extensive recomputations)
1149        can now be obtained for all GMREDI options (i.e. for
1150        - GM_VISBECK_VARIABLE_K
1151        - GM_NON_UNITY_DIAGONAL
1152        - GM_EXTRA_DIAGONAL
1153        - GM_BOLUS_ADVEC )
1154      * However, wrong gradient check problem remains unsolved.
1155      * New CPP options have been introduced for different
1156        tapering schemes
1157    o external_fields_load now part of differentiation list
1158    o pressure needs multiple storing;
1159      would be nice to have store_pressure at beginning or
1160      end of forward_step, e.g. by having phiHyd global (5-dim.)
1161      (NB: pressure is needed for certain cases in find_rho,
1162      which is also invoked through convective_adjustment).
1163    o recomputations in find_rho for cases
1164     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1165    o #define ATMOSPHERIC_LOADING should be differentiable
1166    o ini_forcing shifted to begining of initialise_varia
1167    o Incorporating QNVS line search routines into MITgcm
1168      (this is separate code, and therefore not under pkg)
1169      lsopt/, optim/
1170    o Updated verification/carbon/
1171      - #define GM_VISBECK_VARIABLE_K
1172      - GM_taper_scheme    = 'ldd97'    
1173    
1174    checkpoint46n_post
1175    Merging from release1_p8:
1176    o verification/natl_box:
1177      updating new external_fields_load routine
1178    o New package: pkg/seaice
1179      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1180      The sea-ice code is based on Hibler (1979-1980).
1181      Two sea-ice dynamic solvers, ADI and LSR, are included.
1182      In addition to computing prognostic sea-ice variables and diagnosing
1183      the forcing/external data fields that drive the ocean model,
1184      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1185      The implied surface heat flux is then stored in variable
1186      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1187      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1188      non-local transport term.  Because this call precedes model
1189      thermodynamics, temperature under sea-ice may not be "exactly" at
1190      the freezing point by the time theta is dumped or time-averaged.
1191      N.B.: fairly large differences in accuracy occur across
1192            different platforms/compilers; comparison between
1193            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1194            generated output gives:
1195       T           S           U           V
1196      C D M    c        m  s        m  s        m  s        m  s
1197      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1198      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1199      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1200    
1201      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1202    o GAD:
1203      - generated new common blocks to account for call of
1204        same gad routines with differing traceridentities
1205        (needed to modify tracerIdentity indices in GAD.h)
1206      - generated separate common blocks for case useCubedSphereExchange
1207        (Department of Futurology)
1208      - parameter lists to gmredi_?transport: added tracerIdentity
1209      - added new key indices to tamc.h
1210    o external_fields_load:
1211      - added this routine to TAF list
1212      - needed to make some common blocks global and additional storing
1213        along the same lines as exf package (checkpoint_lev?_directives.h)
1214    o exf:
1215      updated external forcing package
1216      - bug fixes carried over from ecco-branch
1217        (missing OBCS_OPTIONS.h in two routines)
1218      - enable easy to use "no forcing".
1219      - added exf I/O for atmospheric loading
1220      - added exf I/O for runoff data
1221      - transfered scaling between exf <-> MITgcm to exf namelist
1222    o Adding new verification experiment global_with_exf.
1223      This verification experiment is almost identical to the
1224      global_ocean.90x40x15 experiment, except that it uses
1225      the exf (and cal) package instead of the
1226      external_fields_load routine (cf README file).
1227    
1228    checkpoint46m_post
1229    o modified testscript to return -- when there are no lines of "%MON" output
1230    o added new flag "quasiHydrostatic" for QH mode
1231      and new routine quasihydrostaticterms()
1232    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1233      New routine: mom_u_coriolis_nh()
1234    o fixed sign of non-hydrostatic metric terms in u and v equations.
1235      Depend on correct sign of gravitySign.
1236    o added work.pc* to .cvsignore in aim directories using ifc
1237    o introduced flag for controllin non-hydrostatic metric terms
1238    o removed gravitySign from PARM04
1239    o switched to g77/ifc from pgf77 in aim experiments
1240    
1241    checkpoint46l_post
1242    o made convective adjustment work with pressure coordinates:
1243     - changed the direction of k-loop in convective_adjustment.F for the
1244       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1245     - adjusted the reference pressure k-index in convective_adjustment.F
1246     - adjusted the convection condition in convect.F (in analogy to
1247       calc_ivdc.F)
1248     - convective_adjustment no longer computes anything on the halos
1249     - removed the warnings about negative salinity from find_rho.F and
1250       find_alpha.F; instead the new routine look_for_neg_salinity, called
1251       at the beginning of find_rho, find_alpha, and find_beta, does a
1252       check of the entire slice, if CPP-option
1253       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1254    checkpoint46l_pre
1255    
1256    checkpoint46k_post
1257    o fixed the verification/global_ocean.90x40x15 experiment:
1258     - new bathymetry (the world according to A., JMC, and M.)
1259     - new initial fields and forcing fields (*.bin files)
1260     - new POLY3.COEFFS (for the next release one should switch to a full
1261       equation of state: JMD95P or MDJWF)
1262     - fixed several errors and redundancies in the data file
1263     - experiment uses looped cells
1264     - added matlab directory with diagnostic scripts for plotting of output
1265    
1266    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1267     - read AIM physics parameters from a file (data.aimphys)
1268     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1269    
1270    checkpoint46j_post
1271    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1272    o move wVel computation at the end of the time step, in S/R integr_continuity
1273    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1274    o update timeave pkg for wVel diagnostic.
1275    checkpoint46j_pre
1276    
1277    checkpoint46i_post
1278    o Clean up AIM package (and keep the results unchanged):
1279      include CPP_OPTION and use IMPLICT NONE in all routines ;
1280      declare all the variables _RL ; use _d 0 for all numerical constants.
1281      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1282    
1283    checkpoint46h_post
1284    o cleaned up the use of rhoNil and rhoConst.
1285      - rhoNil should only appear in the LINEAR equation of state, everywhere
1286        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1287        and the dynamical equations are all divided by rhoConst
1288    o introduced new parameter rhoConstFresh, a reference density of fresh
1289      water, to remove the fresh water flux's dependence on rhoNil. The default
1290      value is 999.8 kg/m^3
1291    o cleanup up external_forcing.F and external_forcing_surf.F
1292      - can now be used by both OCEANIC and OCEANICP
1293    checkpoint46h_pre
1294    
1295     Added code to convert surface volume flux (fresh water) into
1296     a mass flux when using P coordinates in the ocean (OCEANICP).
1297     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1298    
1299    checkpoint46g_post
1300    o Include a new diagnostic variable phiHydLow for the ocean model
1301      - in z-coordinates, it is the bottom pressure anomaly
1302      - in p-coordinates, it is the sea surface elevation
1303      - in both cases, these variable have global drift, reflecting the mass
1304        drift in z-coordinates and the volume drift in p-coordinates
1305      - included time averaging for phiHydLow, be aware of the drift!
1306    o depth-dependent computation of Bo_surf for pressure coordinates
1307      in the ocean (buoyancyRelation='OCEANICP')
1308      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1309        Theta, Salinity, and Pressure in the parameter list. This routine is
1310        presently contained in find_rho.F. This routine does not give the
1311        correct density for 'POLY3', which would be a z-dependent reference
1312        density.
1313    o cleaned up find_rho
1314      - removed obsolete 'eqn' from the parameter list.
1315    o added two new verification experiments: gop and goz
1316      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1317    checkpoint46g_pre
1318    
1319    checkpoint46f_post
1320    o Enable tangent linear (forward mode) gradient checks:
1321      - extended active file handling to g_... files
1322      - added TANGENT_SIMULATION to theSimulationMode
1323      - extended grdchk package accordingly
1324    o added tangent linear setup in verification/carbon/code_ftl
1325    o added adjoint setup in verification/front_relax/code_ad
1326    
1327    checkpoint46e_post
1328    o Added new equation of state -> MDJWF
1329      - EOS of McDougall et al., 2002, JAOT, submitted
1330      - caveat: the equation of state is only valid for a smaller (more
1331        realistic?) range of values than JMD95P/Z and UNESCO
1332      - added masks to the calculation of pressure in store_pressure
1333      - added more check values for density in check_eos (ini_eos.F), some of
1334        the old check values are out of the range of the MDJWF-eos, so don't
1335        expect perfect matches for those
1336    checkpoint46e_pre
1337    
1338    checkpoint46d_post
1339    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1340      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1341      case of pressure coordinates. eosType='JMD95Z' in
1342      combination with buoyancyRelation='OCEANICP' now causes an error.
1343    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1344      in find_alpha/beta.
1345    checkpoint46d_pre
1346    
1347    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1348      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1349    
1350    checkpoint46c_post
1351    o Changes necessary for ocean in p-coordinates
1352     -  Added new buoyancy relation = 'OCEANICP'
1353     -  Added new parameters = gravitySign (this used to be contained inside
1354        the factor dRdZ which I added when we first switched to R coordinates).
1355     X GM/Redi is not compatible (yet)
1356     X bottom drag and no-slip need to be debugged.
1357    checkpoint46c_pre
1358    
1359    checkpoint46b_post
1360    o Added new equation of state -> JMD95Z and JMD95P
1361      - EOS of Jackett and McDougall, 1995, JAOT
1362      - moved all EOS parameters into EOS.h
1363      - new routines ini_eos.F, store_pressure.F
1364    o Added UNESCO EOS, but not recommended because it requires
1365      in-situ temperature (see JMD95)
1366    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1367      unesco.f to be used with POLY3
1368    checkpoint46b_pre
1369    
1370    checkpoint46a_post
1371    o Added (atmospheric) pressure loading
1372      - new field in FFIELDS.h, etc...
1373      - new cpp flag ATMOSPHERIC_LOADING
1374    o Changed hFacC to _hFacC in calc_phi_hyd.F
1375    o Added SHORTWAVE_HEATING to some files for consistency
1376    checkpoint46a_pre
1377    
1378    checkpoint46
1379    further merges from release1_p5
1380    o new ctrl package
1381      - adopted from ECCO environment to enable optimization
1382      - added Eliassen Palm fluxes to controls
1383    o added Eliassen Palm flux controls to gradient check package
1384    o cost package
1385      - Compatible with new ctrl package
1386      - added Eliassen Palm cost hooks
1387      - modif's of existing cost functions
1388    o Adjoint-related bug fixes in kpp:
1389      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1390      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1391    o autodiff package
1392      - flow directives:
1393        + new for S/R do_the_model_io
1394        + enhanced for S/R checkpoint
1395        + new gmredi.flow
1396      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1397        disable adcommon.h/g_common.h by default.
1398      - fixed problem for adjoint of global_max
1399    o modified verification/carbon/
1400    o New setup for adjoint of global_ocean
1401    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1402    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1403    o incorporated hooks for sponge layer code (external_forcing.F)
1404    
1405    checkpoint45d_post
1406    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1407    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1408      (affects plume_on_slope "cg2d" output)
1409    o add new parameter deltaTfreesurf for free-surface time stepping
1410    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1411    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1412    o change phiMin in exp1 (to agree with documentation)
1413    o add new flags:
1414     - T,S forcing inside/outside Adams-Bashforth
1415     - turn off temp,salt advection and/or forcing
1416     - for each tracer, define internal flag for multiDimAdvection & A-B
1417    o monitor: change definition of KE to check conservation of Energy
1418    
1419    checkpoint45c_post
1420    o Removed f90 comments ("!")
1421    o Modified initialisations to enable exf package for MITgcm
1422      (without invoking ECCO_PACKAGE).
1423    o modifications to gradient check package (Martin Losch)
1424      - enable centered differences
1425      - modified format of standard output
1426    
1427    checkpoint45b_post
1428    o cleaned exchange calls in cg2d
1429    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1430    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1431      to configure barotropic setup (Martin Losch)
1432    o moved some initialisations within bi,bj loop in dynamics
1433      (TAF flow dependency)
1434    o in initialise_varia, moved call packages_init_variables
1435      before convective_adjustment_init
1436      (corresponding adjustment of TAF tape initialisation).
1437    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1438    
1439    checkpoint45a_post
1440    o compute Rho over the whole domain (extend iMin,jMin indices)
1441    o specific exchange for X-slice domain (case Ny=1)
1442    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1443    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1444    
1445    checkpoint44h_post = checkpoint45
1446    o Fix to restore differentiability:
1447      place at which packages_init_variables is called in
1448      initialise_varia is crucial for reverse control flow.
1449    o modifications in GMRedi to enable stable adjoint
1450      (corresponding modif's in thermodynamics, dynamics)
1451    o added missing hook for sponge layer code in external_forcing
1452    o modified test cost functions
1453    o storing in gad_advection (plus removal of write(0,*)!
1454    o missing headers TR1.h added in convective_adjustment routines
1455    o errorMessageUnit set non-equal zero in eeboot
1456      (conflict on some platforms, e.g. IBM SP3)
1457    o modified carbon verif.
1458    
1459    checkpoint44h_pre
1460    o vertical grid option: allow to put the Interface at the middle between
1461      2 cell-centers ; replace delZ in pkg/kpp by drF.
1462    o GM Advective form: Tracers are advected using the residual transport (=
1463      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1464    
1465    checkpoint44g_post
1466    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1467      results) ; ifdef missing in thermodynamics.F
1468    
1469    checkpoint44f_pre,checkpoint44f_post
1470    o added PTRACERS package
1471      This allows an arbitrary number of passive tracers to be integrated
1472      forward simultaneously with the dynamicaly model.
1473      + Implemented so far:
1474        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1475        - I/O and checkpointing
1476        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1477      + Not implemented so far:
1478        - KPP
1479        - OBCS
1480      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1481        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1482        line in data.pkg.
1483      + This package is disabled by default since it increases storage.
1484    
1485    
1486    o testscript: added -cleanup option
1487    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1488                 b) enable to filter 2D fields.
1489    
1490    checkpoint44e_pre,post
1491    o re-wrote convective adjustment to use pre-calculated weights
1492      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1493      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1494      Original calls to convect() still in place.
1495    
1496    chkpt44d_pre,post
1497    o added missing EXCLUDE_MONITOR flags
1498    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1499      (incompatible typ in MIN/MAX expressions caused problems
1500      on IBM SP3)
1501    o in genmake added variable MAKEDEPEND
1502      plus resetting for case SunOS
1503    o added timer_stats.c routine for IBM SP3
1504    o removed variables in dynamics
1505    !!! I forgot to create tag chkpt44d_pre !!!
1506    !!! But chkpt44d_pre = chkpt44c_post    !!!
1507    
1508    o real fresh water flux implemented with non-linear free-surface.
1509    
1510    chkpt44c_pre,post
1511    o few fix (mask in shap_s2, EmPmR in external_field_load,
1512      USE_NATURAL_BCS in solve_for_P);
1513    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1514    
1515    checkpoint44b_pre/_post
1516    o merge of relevant stuff from the ecco-branch:
1517      - genmake: removed $S64 overwrite for case SunOS
1518      - pkg/exf: update and corrections for field swapping and obcs
1519      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1520                  harmonized between ECCO and MITgcm
1521      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1522                      updated checkpointing_lev... lists for obcs
1523      - model/src: minor changes in forward_step, plot_field
1524                   added directive for divided adjoint in the_main_loop
1525      - pkg/mdsio: added mdsio_gl_slice
1526    
1527    o check parameters & config (chkpt44a_pre,post)
1528    o OBC and NonLin_FrSurf.
1529    
1530    checkpoint44
1531    o fix bug in mom_vi_del2uv
1532    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1533    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1534    o update AIM experiments (NCEP input files)
1535    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1536    o added some stuff for AD
1537    
1538    checkpoint43
1539    o added two new advection tests
1540    o added global 4x4 degree ocean test
1541    o added test of H&S94 with free surface on cube
1542    o some final mods for gradient check, adjoint,...
1543    
1544    checkpoint42
1545      Fixed AD-related problems:
1546    o Store directives up-to-date with re-arranged Adams-Bashforth
1547      (mainly thermodynamics.F)
1548    o New store directives for multi-dim. advection schemes
1549      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1550      * new common block and key passkey
1551      (mainly gad_advection.F)
1552    o Modified store directives for split of dynamics/thermodynamics
1553      for the case ALLOW_KPP
1554    o Cleaned argument list for timestep_tracer.F
1555    
1556    checkpoint41
1557    o re-formatted/added comments in prologues of key subroutines
1558      to work with protex
1559    
1560    checkpoint40
1561    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1562    o added FLT (floats) package from Arne along with demo. experiment
1563    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1564      implementation of forward-in-time forcing terms
1565    o more mods for non-linear free-surface including new variable
1566    o modified multi-dim method to work on cube
1567    o bug fix in KPP (from DM)
1568    
1569    checkpoint40pre9
1570    o added DST advection schemes
1571    o fix MPI bug on SGI's
1572    o modifications for non-linear free-surface
1573    o fixed conditionals for fixed flow/passive tracer only mode
1574    o added tension/strain form of stress tensor
1575    o changes to commenting of arguments for TAF/TAMC
1576    o added/updated many matlab scripts
1577    o added multi-dimensional advection method for tracers
1578      
1579    checkpoint40pre8
1580    o new package rw/
1581      Added method for dumping intermediate local arrays:
1582      mdsio_writetile - same as mdsio_writefield except works from inside
1583                        bi,bj loop
1584      mdsio_writelocal - same as mdsio_writetile except works for local
1585                         arrays
1586      write_local_r? - higher-level wrapper for mdsio_writelocal
1587      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1588      Example given at end of mom_vecinv.F that dumps some local arrays.
1589    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1590      control flux-form versus vector invariant code.
1591      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1592      or genmake -DISABLE ...
1593    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1594      (additional storing is now needed for case vecinv;
1595      currently nothing implemented to switch this storing off
1596      in case fluxform is used since no CPP flag available).
1597    
1598    checkpoint40pre7
1599    o bug fix in dynamics.F
1600      calc_viscosity called before k=1,Nr loop.
1601    o added some #ifdef's ALLOW_PASSIVE_TRACER
1602    o cleaned initialisations in ctrl_map_ini
1603      related to TAF
1604    
1605    checkpoint40pre6
1606    o split dynamics into thermodynamics & dynamics
1607    o corresponding split of calc_diffusivity into
1608      calc_diffusivity, calc_viscosity
1609      (kpp_calc_diff, kpp_calc_visc).
1610    o Added diffkr, kapgm to control variables
1611    o bug fix in gmredi_slope_limit for ldd97
1612    
1613    checkpoint40pre5
1614    o proper initialization of Adams-Bashforth time stepping
1615      + uses forward step for very first step of model (iter=0)
1616    o re-generated *all* output since almost all output is modified by this
1617      change (sorry but we've been putting this one off for about 2 years)
1618      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1619        *not* regenerated since they are already out of date and I don't
1620        want to create the impression that they are suddenly working.
1621    o removed KAP stuff for DEC's
1622    o modified/added many .cvsignore files in */code and */input
1623    o added new expt "solid-body.cs-32x32x1"
1624      + this uses an alternative form of ini_curvilinear_grid.F which
1625        is not necessarily any better than the current one...
1626    
1627    checkpoint40pre4
1628    o added re-initialisations of utrans,vtrans,rtrans in
1629      calc_common_factors which are crucial for TAF.
1630    o extended iMin,jMin range for calc_common_factors,
1631      calc_diffusivity
1632    o added option ALLOW_PASSIVE_TRACER
1633    o a few minor updates and fixes
1634    
1635    checkpoint40pre3
1636    o created calc_gtr1.F for gad package
1637    o split the_main_loop and re-introduced forward_step
1638    o some recomputations of nIter0 for TAMC
1639    
1640  checkpoint40pre2  checkpoint40pre2
1641  o Updated to latest branch of AJA, JMC  o Updated to latest branch of AJA, JMC
1642  o Added gradient check package  o Added gradient check package

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