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revision 1.47 by heimbach, Tue Aug 21 16:38:41 2001 UTC revision 1.385 by jmc, Tue Nov 16 14:33:11 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
7    o mnc: cleanup "full" files--fixes out-of-memory problem
8    
9    checkpoint55j_post
10    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
11      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
12    o add consistent build directories and .cvsignore files to verification
13    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
14    o make all subroutines 30 or less characters in length for certain older
15      compilers to work (a thorough search only turns up two routines in
16      pkg/ptracers)
17    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
18      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
19    
20    checkpoint55i_post
21    o change arrays for total vertical diffusivity (2.D if explicit,
22      3.D if implicit) ; each ptracer uses its own background value.
23    o added mnc/NetCDF output capability to ocn_compon_interf
24      - added bits to verification/cpl_aim+ocn so that it can run on
25        ITRDA and other clusters without the mpirun "-wd" option
26    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
27      configuration
28    o give MNC the ability to create additional files rather than
29      exceeding a specified file size limit "MNC_MAX_FILESIZE"
30      - the default is just less than 2GB which is a practical limit
31        on many systems
32    o Compute the non-local term using either KPP vertical diffusivity (=default)
33       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
34    
35    checkpoint55h_post
36    o add verification test "vermix"
37    o remove all the *_ioinc flags and replace with the single global
38      outputTypesInclusive flag
39    o allow to set a vertical profile of vertical diffusivity for T & S
40    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
41    o useMNC moved from data.mnc to data.pkg
42    
43    checkpoint55g_post
44    o Renaming carbon AD experiments to comply with testreport conventions
45    o Updating adjoint of Held-Suarez hs94.1x64x5
46    o Fixing directives for non-ECCO forward_step, after ECCO directives
47      have been fixed to avoid recomp. of do_oceanic_phys
48      Works well for global_ocean.90x40x15,
49      but recomp. issue remains for carbon
50    o Updating adjoint output for natl_box_adjoint after
51      pkg/ecco has been modified (see taga c55d_post)
52    
53    checkpoint55f_post
54    o rename to timeave_init_fixed
55    
56    checkpoint55e_post
57    o some delicate re-shuffle of store directives to avoid one
58      extra call of do_oceanic_physics
59      affects ecco_the_main_loop.F, do_oceanic_physics.F
60      checkpoint_lev1_directives.h
61    o NB: this may break global_ocean adjoint temporarily,
62      but it is clear how to fix it. Will do later, need this now.
63    
64    checkpoint55d_post
65    o ECCO specific cost function terms (up-to-date with 1x1 runs)
66    o ecco_cost_weights is modified to 1x1 runs
67    o modifs to allow observations to be read in as
68      single file or yearly files
69    o enable to read exf forcing fields as either
70      single file or yearly files (flag useExfYearlyFields)
71    checkpoint55d_pre
72    
73    o switch between 2-level and 3-level checkpointing
74    o add ability of MNC to write local and "partial" (eg. 2D slices where
75      the full 3D field is never actually stored) arrays to NetCDF files
76      with the correct (that is, the complete multi-dimensional) set of
77      array indicies
78      - used in mom_vecinv() to write the diagFreq output
79      - tested (demonstrated) in verification/aim.5l_cs
80    o further mnc-ification
81      - add verification/lab_sea to the list with mnc setups
82      - fix undefined mnc v-names in cd_code
83      - add kpp to mnc output (both snapshot and timeave)
84    o non-hydrostatic code
85      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
86        in calc_gw.F
87      - defaults to viscAh
88      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
89        friction or Leith) in non-hydrostatic mode, as long as there is
90        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
91    o pkg/cost
92      extend simple cost functions to treat time mean quantities
93      (T,U,V) via cost_accumulate_state from cost_tile
94    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
95        be 2 times larger than the minimum size the advection scheme requires.
96        now get a perfect conservation of salt in advect_cs test-exp (updated)
97    o GGL90 (Gaspar's TKE mixed layer)
98      - add horizontal diffusion of TKE, requires exchanges in
99        do_fields_blocking_exchanges, horizontal diffusivity is zero by
100        default. In OPA there is no horizontal diffusion of TKE but the
101        mixing coefficients are computed from a horizontal average of TKE of
102        6 points or so. I think that diffusion has a little more physical
103        justification.
104      - clean up ggl90_calc in the hope of reducing memory usage (this hope
105        was in vain)
106      - mask tke-variable in ggl90_init
107    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
108    o fix biharmonic diffusion on CS-grid.
109    o more obcs stuff
110      - added obcs_external_fields_load as an alternative to the EXF-pkg option
111        for reading boundary values. This routine is called from
112        obcs_prescribe_read
113      - updated obcs_check
114      - changed sponge layer relaxation parameter units for days to seconds
115      - turned off sponge layer by default
116      - changed argument list of OBCS_CALC to myTime+deltaTclock
117      - fixed about 35 bugs in obcs_external_fields_load
118    
119    checkpoint55c_post
120    o obcs stuff
121      - new runtime flags useOBCSprescribe, useOBCSbalance
122      - re-arranged obcs_calc
123      - moved exf_getobcs to obcs_prescibe_read
124        obcs_prescibe_read is called after ORLANSKI stuff
125        and independent of it (executable can contain all).
126      - updated obcs_check
127      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
128        These may be necessary only if tangential velocities are
129        prescribed at OB, not sure, needs testing.
130    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
131      which simplifies the calls and passes the ifc check-bounds test
132    
133    checkpoint55b_post
134    o add a 2D scalar, Z location, exchange_2 routine.
135    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
136      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
137      affects advect_cs results (for the wrong reason): update output.txt
138    o use a more standard discretization for biharmonic viscosity ;
139     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
140      affects results of dome set-up: update output.txt
141    o fix gad_advection.F (CubedSphere part), back to version 1.23
142    o fix bug in mom_vi_del2uv.F (CubedSphere part).
143    
144    checkpoint55a_post
145    o merged code to
146      * prescribe/read time-dependent open boundaries
147        (works in conjunction with exf, cal)
148      * sponge layer code for open boundaries
149      * each boundary N/S/E/W now has its own CPP option
150        (healthy for the adjoint)
151    
152    checkpoint55
153    o up-to-date adjoint of previous breaks
154      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
155      - global_ocean_ebm: adjoint still needs fix (TLM ok)
156      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
157      - carbon: * remove tr1-related adjoint verification
158                * add ptracer as control variable
159    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
160      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
161    
162    checkpoint54f_post
163    o in verification/carbin/ remove experiment related to
164      ALLOW_PASSIVE_TRACER (array tr1 etc)
165      code_ad/ input_ad/ results_ad
166    
167    o add two new packages
168      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
169        + subject to optimization (memory)
170      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
171        + subject to reordering (many GOTOs in the original code)
172        + so far opps is called for every (i,j) point, and then operates in
173          the vertical; one may want to reorder the scheme in order operate in
174          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
175          fields)
176    o overhaul of IO so that we now have flags for MDSIO and/or MNC
177      - all verification tests compile and run with linux_ia32_g77
178      - defaults are compatible with current input files--nothing
179        should change if you were not previously using MNC
180      - MNC output has been added in numerous places (eg. timeave)
181        but there are still a few writes not yet do-able with MNC
182        (this is in progress)
183      - flags now allow for either/or/both use of MDSIO and MNC and
184        documentation will soon follow
185      - numerous small formatting cleanups for ProTeX
186    o add version info (via BUILD_INFO.h) to MNC and stdout
187    
188    checkpoint54e_post
189    o add two new packages
190      - pp81 (Packanowski and Philander, 1981), Richardson number and
191        stratification dependent mixing
192      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
193      - these scheme operate in a similar manner as KPP (without ghat, of
194        course), however there is only one diffusivity that is used for both
195        temperature and salinity (and passive tracers)ç
196    o add offline package
197    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
198      provided by Stephanie Dutkiewicz
199    o genmake2: add ability to search for C compilers and cleanup test output
200      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
201    
202    checkpoint54d_post
203    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
204    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
205      leading to additional shift by 5 days each year of integration
206       (i.e. leading to considerable offset over the years)
207    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
208    o start with no AB and no initial filtering (staggerTimeStep):
209      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
210    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
211      (external loading & cpl import/export stay in forward_step.F)
212    o update coupling interface to work with new staggerTimeStep
213    o change MDSIO ptracers_pickup.
214    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
215    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
216    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
217    
218    checkpoint54c_post
219    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
220      this affects (truncation error) output.txt of test-exp:
221       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
222    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
223    o change Qnet to always be the net heat flux, (+upward).
224      affects (truncation error) output of natl_box exp.: updated
225    o define the max number of passive tracers in PTRACERS_SIZE.h
226    o start to test mnc routinely in exp0
227    o add sea-ice loading (sIceLoad) as a new forcing field.
228    
229    checkpoint54b_post
230    o add testreport "-j JOBS" option for parallel builds (tested and pretty
231       impressive on Altix and Opteron systems)
232    o diagnostics can now write NetCDF files through the mnc package
233    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
234    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
235    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
236      affects (truncation error) output of lab_sea & natl_box exp.: updated
237    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
238    
239    checkpoint54a_post
240    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
241    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
242    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
243    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
244      + internal_wave (shift in writing cg2d_ini_res)
245    checkpoint54a_pre
246    
247    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
248      - modified verification/lab_sea and natl_box_adjoint accordingly
249    
250    checkpoint54
251    checkpoint53g_post
252    o prepare splitting of thermodynamics: store convect.counter in common block
253    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
254      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
255    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
256    o new parameter "nShapS": allow to treat differently S from T (nShapT)
257    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
258    o restore adjointability
259    
260    checkpoint53f_post
261    o modifications that affect AIM experiment results (update output.txt):
262      - no advection of S at top interface Nr (pkg/generic_advdiff)
263      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
264    o AIM pkg:
265      - include stability function into surf.Flux derivative relative to Tsurf
266      - calculate clear-sky radiation & surface temp. change (for diagnostics)
267    
268    checkpoint53e_post
269    o merged cylindrical coord configuration
270    o added rotating_tank experiment
271    checkpoint53e_pre
272    
273    checkpoint53d_post
274    o faulks upgraded: re-generate output.txt that have changed:
275       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
276    o Added Bryan and Lewis, 1979, vertical diffusivity profile
277    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
278    o added Sadourny discretization of Coriolis
279      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
280      - re-enabled use of omega3 (useAbsVorticity)
281    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
282      vector-invariant equations
283      - note: does *NOT* yet use same variable visc. for no-slip BC's.
284    o recoded the lateral boundary conditions for non-hydrostatic w, this time
285      hopefully without new bugs
286      - still to do: biharmonic friction for non-hydrostatic w
287    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
288    o regenerated output for global_ocean_ebm (using -ieee)
289    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
290      of mom_common/
291      - simple re-arrangement of instructions within computing loop
292    checkpoint53d_pre
293    
294    checkpoint53c_post
295    o new version of coupler for AIM+thSIce and Ocean models
296     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
297     - land: change Evaporation of snow
298     - aim with thSIce: fix bug in snow-precip.
299    o changes to calc_gw.F
300     - bug fix for w^2 term near the bottom boundary
301     - (hopefully) improve the lateral slip boundary condtions for use with
302        partial/looped cells
303      - because the bug fix changes two verification experiments anyway (exp5
304        and plume on slope), change the lateral boundary condition from half slip
305        to the value of no_slip_sides
306    o ebm package wasnt quite up to the parallel task. Fixed that.
307    o Adjoint of EBM package + verification
308      * TLM OK
309      * ADM not sufficient accuracy yet (needs further testing)
310    
311    checkpoint53b_post
312    o Commiting new energy balance model to repository
313      * package is pkg/ebm
314      * verif. is verification/global_ocean_ebm
315      * references are in ebm_driver.F
316    C      * X. Wang, P. Stone and J. Marotzke, 1999:
317    C        Global thermohaline circulation. Part I:
318    C        Sensitivity to atmospheric moisture transport.
319    C        J. Climate 12(1), 71-82
320    C      * X. Wang, P. Stone and J. Marotzke, 1999:
321    C        Global thermohaline circulation. Part II:
322    C        Sensitivity with interactive transport.
323    C        J. Climate 12(1), 83-91
324    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
325    C        Destabilization of the thermohaline circulation
326    C        by atmospheric eddy transports.
327    C        J. Climate 7(12), 1870-1882
328    o Will need long integration testing.
329    checkpoint53b_pre
330    
331    o created pkg/mom_common in preparation for variable viscosity code
332    o renamed and split ini_mnc_io
333    o pkg/land: only liquid water can diffuse or run-off
334    o AIM using land: soil wetness availability account for snow
335    o added printMapIncludesZeros to EEPARMS namelist
336    
337    checkpoint53a_post
338    o restore TAMC compatiility for exf_constants.h
339      (no usage of _d in .h)
340    o Additional storing in KPP in an attempt to fix
341      TAMC problem with adjoint of KPP code.
342      (no success...)
343      Identical code works fine with TAF.
344    o Fixed verification/natl_box_adjoint experiments.
345      Initial conditions for Experiments 4 and 5 are now
346      set to "SEAICE_initialHEFF=0", which is more reasonable,
347      and hence gives results closer to that of Experiment 2.
348      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
349    
350    checkpoint53
351    o stable checkpoint with up to date adjoint
352      TLM tests only run for 1st grdchk at the moment. Its unclear if
353      this is a code problem or a problem with resetting code for g_
354      variables that is being autogenerated wrong.
355      Otherwise:
356       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
357       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
358         are both still in chaos following their security messes.
359    
360    checkpoint52n_post
361    o various build (mostly genmake2) changes including:
362      - ability to build/run more easily within Cygwin and MacOS X
363      - more complicated Makefiles with a stronger dependence on Gnu Make
364    o pkg/seaice modifications
365      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
366        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
367        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
368      - changed proxy for geostrophic velocity and updated
369        verification/lab_sea/results/* accordingly
370      - removed ADI dynamic solver from pkg/seaice
371      - replaced all occurrences of 1/CSTICE or 1/CSUICE
372        they caused a segmentation fault under certain circumstances
373      - removed unused field WATR
374    o bug fix in exf-package:
375      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
376         now reflect that.
377    o small fixes in the cal-package:
378      - set reference date to first of January for the 'model'-calendar
379      - failing of cal_CheckDate in cal_FullDate now actually results in a
380        warning
381    o small modifications in exf-package to increase flexibility:
382      - change climtempfreeze from a constant to a runtime parameter that
383        is specified in data.exf_clim (default = -1.9)
384      - introduce runtime parameter windstressmax (default = 2.0) that is
385        specified in data.exf
386    o fix in pkg/thsice:
387      - update Evap (Tsf changes) to be consistent with Latent heat flux
388      - maintain snow precipitation unchanged (even if Tsf >=0).
389     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
390    
391    checkpoint52m_post
392    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
393      this does not change any of the results, because myIter=0 in swfrac always
394      lead to jwtype=2 (the default anyway), but the call makes little sense
395      as a default
396    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
397    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
398      atmospheric model (AIM) to use it ; add a "slab ocean" component.
399    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
400    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
401    o extending useSingleCpuIO option to work with new exch2 I/O format
402      - old-style, missing-tile I/O is still accessible by defining CPP
403        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
404    o monitor package can write to NetCDF files and/or STDOUT
405    o fix re-definition bug in MNC_GRID_INIT_ALL()
406    o doc/api_reference added
407      - a framework for building an API Reference Manual using all
408        the "protex" comments embedded in the code
409      - see pkg/generic_advdiff, pkg/mnc for examples
410    o MNC:
411      - make myThid the last argument for all subroutines
412      - new default for the grid files: NO halos
413      - add useMNC and other run-time flags
414      - separate per-file-group handling of the unlimited dimension
415      - early initialization of MNC w/ flags read at the eeboot stage
416        and lookup tables set in initialize_fixed
417      - write all MNC output to a freshly-created directory
418    o thermodynamics sea-ice (thsice) is now tested with testreport.
419    o test exp. advect_cs: use the standard cs32 grid ; update output.
420    o Added functionality to grdchk:
421      pick global i,j,k position (or nearest wet) where to perform check.
422    
423    checkpoint52l_post
424    o new land formulation:
425      a) use ground enthalpy as prognostic variable to ensure exact
426         energy conservation.
427      b) account for water temperature and for latent heat of freezing
428         in all processes (rain, run-off, ground storage)
429      c) compute surface and ground temperature implicitly.
430    o aim_v23 modification for new land model:
431      a) Treat separately land / ocean / sea-ice surface fluxes
432         to allow implicit computation of land & sea-ice surface temp.
433      b) add snow precipitation.
434    checkpoint52l_pre
435    
436    o fix problem (when 1 tile is empty) in min/max monitor.
437    o fix bug in timeAve (u,vZetatave in common block)
438    o no restoring terms under ice for pkg/seaice
439    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
440    o bug fix for pkg/seaice pickups
441    o change MNC call locations and add coordinate attributes
442    o mask vorticity at the corner ; affects global_ocean.cs output
443    o fix ini_curvilinear_grid ; test CS experiments with mpi
444    o aim.5l_cs: modify sea-ice fraction input file ; update output
445    o exf: Adding simple range check routine for exf fields after read
446    
447    checkpoint52k_post
448    o removed top-level directory "diags"
449      - we migrated these functions to pkg/timeave a long time ago
450    o fixed bug introduced in pkg/monitor
451    o accuracy ctrlprec = 32 insuffient for gradient checks using
452      averaged fields (I/O via cost_averages)
453      -> use ctrl.h in active_file*.F to control I/O precision.
454    o paramter list of CALL ADTHE_MAIN_LOOP
455    o added initial do_the_model_io to ecco
456    o set all ...Freq to zero after cost_final
457      taveFreq, dumpFreq, pChkptFreq
458    o MAIN and ECCO differentiability restored
459    
460    checkpoint52j_post
461    o fix nchklev in tamc.h for global_ocean...
462    o Bringing flow and store directives up-to-date
463    o Really weird thing!
464      call do_the_model_io from the_main_loop with parameters
465      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
466      TAF places a faulty re-call of initialise_varia
467      after cost_final call which should not be there!
468    checkpoint52j_pre
469    
470    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
471      error messages
472    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
473    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
474      debug output
475    o modfied mdsio_writefield.F to handle non-global files under exch2
476    o update AIM Cubed-Sphere exp (aim.5l_cs):
477      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
478    o update AIM Equatorial Channel exp:
479      use standard aim_v23 pkg and change the SST fields to be more realistic.
480    o globalFile now works with exch2
481    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
482      mon_vort3.F to make exch2 friendly with >1 tile per cube face
483    o limit timeave output for hi-res integrations
484    
485    checkpoint52i_post
486    o removed CPP_EEOPTIONS.h from verification/*/code
487    o updated the tiling for global_ocean_pressure
488    checkpoint52i_pre
489    
490    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
491      the old pkg/aim).
492    
493    checkpoint52h_pre
494    o shortened offending lines in exch2_send_rx?.template
495    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
496    o genmake2: add build & execute test for NetCDF code
497    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
498      old grid files, moved CPP_EEMACROS.h to pkg/exch2
499    o added useSingleCPUIO flag to monitor.F and mon_out.F
500    o added temporary hack for sea-ice dynamics on the cube:
501      metric terms are ignored and it is assumed that
502      there is no sea-ice on cube faces 1, 2, 4, and 5.
503    
504    checkpoint52f_post
505    o added exch2 cube routines to pkg/exch2
506    o modified hs94.cs-32x32x5 to use it
507    o added new grid files to hs94.cs-32x32x5
508    checkpoint52f_pre
509    
510    checkpoint52e_post
511    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
512      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
513    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
514      to work with implicit vertical advection and AB ;
515    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
516    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
517     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
518    checkpoint52e_pre
519    
520    o fix bug in impldiff when Nr=1 or Nr=2.
521    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
522    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
523    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
524      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
525    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
526    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
527    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
528    
529    checkpoint52d_post
530    o re-tiled many expts to allow comparison in multi-processor mode
531      - updated output accordingly
532      - changed hs94.128x64x5 to use intial T from file rather than use the
533        random number generator
534    o add infrastructure in model routines for fizhi and gridalt packages
535    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
536    o changes to permit hi-res, cubed-sphere, configuration
537      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
538      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
539      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
540        of surface winds for the cube
541      (A verification experiment, based on global_ocean.cs32x15, but with
542       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
543       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
544       complete with example surface forcing files and matlab scripts to look
545       at the output and compare it with that of global_ocean.cs32x15.)
546    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
547       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
548       to conform to the common rule.
549    o check-in the first version of the coupler + interfaces for multi-components
550       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
551       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
552       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
553       - ocean and atmos. share the same horizontal grid (no interpolation).
554       - exchanges between component and coupler is done in forward_step
555    o new verification experiment, cpl_aim+ocn:
556       coupled ocean - AIM atmosphere on cs32 grid.
557    
558    checkpoint52d_pre
559    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
560    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
561    
562    checkpoint52c_post
563    o Fixing OPTIONS files for use of exf:
564      - ALLOW_ECCO not needed
565      - ECCO_CPPOPTIONS.h should not be included from
566        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
567        as has been the case in the past
568      - All cal/exf related options are currently set in
569        single header file. Should remain so until we
570        agree on a consistent new policy.
571    o Removed all CPP options for cal package.
572      cal has no more CPP options.
573    o modified STOREs in GAD_ADVECTION
574    o corrected key comp. for passkey
575    
576    checkpoint52b_post
577    o new version: "thsice" of thermodynamic sea-ice pkg:
578     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
579     - modify fluxes but do not change theta directly;
580     - light cleaning of bulk_force pkg (still needed with thsice).
581     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
582       + output_thsice.txt to test thsice & bulk_force pkgs.
583    o put back grid & coriolis monitor output.
584    checkpoint52b_pre
585    
586    o call "do_the_model_io" at the beginning (=> dump initial state)
587    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
588    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
589      (need info on NUMBER_OF_PTRACERS)
590    o missing PTRACERS headers in some routines
591    o default tamc.h in pkg/autodiff supposed to crash
592      to ensure proper customization
593    
594    checkpoint52a_post
595    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
596      - moved surfaceTendencyTice from pkg/seaice to main code
597      - subroutine FREEZE_SURFACE now limits only surface temperature
598        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
599        => new output.txt for global_ocean.cs32x15 & global_with_exf
600      - keep the old version of FREEZE for backward compatibility;
601        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
602      - corresponding modifs for TAF directives
603    o added surface flux output variables to TIMEAVE_STATVARS
604    o time-averaged output for pkg/ptracers
605    o fix problem with ECCO-related divided adjoint
606      snapshot file was missing some ad-variables,
607      but no warning issued by TAF
608    
609    checkpoint52a_pre
610    o some bug fixes for #undef REAL4_IS_SLOW
611    
612    checkpoint52 = ecco_c52_e35
613    o after testing adjoints of checkpoint51u_post
614    
615    checkpoint51u_post
616    o this is the post-merge tag of the ecco-branch
617      (needs another clean checkout and re-testing)
618    o various natl_box_adjoint configs and results
619      but no input fields
620    o obcs adjoint not yet merged!
621    o adding ECCO global 1x1 and 2x2 degree configs
622    o updated/extended some store directives for seaice
623    o pkg/ecco now containes ecco-specific part of cost function
624    o top level routines the_main_loop, forward_step
625      supersede those in model/src/
626      previous input data.cost now in data.ecco
627      (new namelist ecco_cost_nml)
628    o in ctrl/ cleaned some cross-dependencies and updated CPP options
629    
630    checkpoint51t_post
631    o this is the pre-merge tag of the ecco-branch
632    
633    checkpoint51s_post
634    o cleanup: removed various obsolete #define-s
635    o pkg/grdchk
636      - renamed 'ph-grd 3' to 'grad-res'
637      - merged from ecco-branch
638        (remaining bug fixes for obcs gradient checks)
639      - additional high-precision output for testreport
640        (grep for 'precision_grdchk_result')
641    
642    checkpoint51r_post
643    o cleaned up or removed CPP_OPTIONS.h files
644    o updated results for some of the tests to reflect the new
645      optfiles (-ieee: -O0 instead of -O3)
646    
647    checkpoint51q_post
648    o cd_code:
649      - moved cd_scheme.F -> cd_code_scheme.F
650      - separate read_checkpoint from cd_code_ini_vars.F
651      - separated cd_code part from write_checkpoint
652      - updated AD_SOURCE, generated .flow
653      - added CD_CODE_VARS.h to the_main_loop
654      - Moving cd_code specific store dir.s to pkg/cd_code
655    o ctrl package totally restructured
656      - pack/unpack now optional and decoupled from
657        xx_/adxx_ I/O
658      - ctrl_pack/unpack cleaned
659        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
660      - confined inclusion of AD_CONFIG.h to where necessary.
661    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
662    
663    checkpoint51p_post
664    o create initial cd_code package
665      - WARNING: the initialization of fields within packages
666        is broken because INI_FIELDS (where READ_CHECKPOINT is
667        called) is called *before* PACKAGES_INIT_VARIABLES.
668        This seems to be backwards since
669        1) its important to initially zero the entire field including
670           the "halo" region
671        2) zeroing needs to be done *before* reading pickup info
672           and the pickup call might or might not happen in any
673           particular run
674      - this needs an overhaul for R2
675    o cleanup verification/*/code/GMREDI_OPTIONS.h
676    o cleanup testreport
677    
678    checkpoint51o_post
679    o bringing AD-related verif's up to date with genmake2
680      - carbon/
681      - global_ocean.90x40x15/
682      - hs.94.1x64x5/
683      - (front_relax/ )
684    o (more) consistent directory structure for AD-related verif.'s
685    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
686    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
687    o bug fix in find_alpha.F for MDJWF:
688      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
689        change rho -> rho-rhoConst
690      - replace call find_rho to find_rhonum
691    o initialisation of rFlx extended to full array (required by TAF)
692      and shifted to thermodynamics
693    o removed PTRACERS.h in ptracers routine
694    o added surfacetendencyPtr to S/R parameter list pracers_forcing
695    o Correcting initialisations for fVerU, fVerV.
696    o helping TAF to recognize dependency on kUp for
697      fVerU, fVerV
698    o Replacing delZ by delR in pkg/ctrl/
699    checkpoint51o_pre
700    
701    o undid all of cp51 pending some cleanups and discussion
702    o added the [#include "AD_CONFIG.h"] statement to all files that need
703       it for adjoint/tl #defines
704     o re-worked the build logic in genmake2 to support AD_CONFIG.h
705     o removed tools/genmake since it no longer works
706    
707    checkpoint51n_post
708    o modifications to make FREEZE flux visible to pkg/kpp
709      - moved surfaceTendencyTice from pkg/seaice to main code
710      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
711      - subroutine FREEZE now limits only surface temperature
712        (this means new output.txt for global_ocean.90x40x15,
713         global_ocean.cs32x15, and global_with_exf)
714    o added surface flux output variables to TIMEAVE_STATVARS
715    
716    checkpoint51n_pre
717    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
718    o added [#include "AD_CONFIG.h"] to all files that use the following
719      defines:
720      - ALLOW_ADJOINT_RUN
721      - ALLOW_TANGENTLINEAR_RUN
722      - ALLOW_ECCO_OPTIMIZATION
723    
724    checkpoint51m_post
725    o incorporating changes to get TAMC/TAF working in genmake2
726      - added new TAMC/TAF targets to the Makefile
727      - various cleanups related to package handling
728      - these changes should have no impact on the forward model
729    
730    checkpoint51l_post
731    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
732     - faster algorithm for cal_addtime.F
733     - higher precision arithmetic, where needed
734     - pkg/exf *startdate variables changed from calendar date to
735       model integration time
736    
737    checkpoint51l_pre
738    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
739    o enable to apply restoring on S & T only in a latitude band.
740    o update output (external_forcing_surf modif. change truncation errors)
741       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
742    
743    checkpoint51k_post
744    o change default to: useNHMTerms=.FALSE.
745     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
746       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
747     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
748        exp1, ideal_2D_oce
749     - change data file of oceanic exp (leave the results unchanged for now)
750       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
751    o set gravitySign automatically according to the vertical coordinate used
752      (and change sign: back to "logical" value: +1 when R increases downward)
753    o added an include barrier to the default CPP_OPTIONS.h and
754      removed the #include "PACKAGES_CONFIG.h" from it
755    o fix a bug in mom_fluxform (from chk51j_post)
756    
757    checkpoint51j_post
758    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
759    o adjusted some flow directives (dynamics, thermodynamics)
760    o added cubed-sphere case to test cost function
761    o heckpoint_lev?_directives.h now include
762      pkg-specific directives, whenever those are enabled.
763    o Moving pkg-specific flow directives to corresponding pkg
764      Moving pkg-specific differentiation list to corresponding pkg
765      Moving pkg-specific checkpoint-lev storing to corresponding pkg
766      ---> conventions are
767           - pkg_ad.flow
768           - pkg_ad_diff.list
769           - pkg_ad_check_lev?_dir.h
770    
771    checkpoint51i_post
772    o merge of the branch-genmake2
773      - knowingly breaks the older genmake
774      - automatic generation of all ALLOW_${PKG_NAME} defines
775      - new testreport supersedes older testscript
776    o large number of package inclusion and header cleanups
777    checkpoint51i_pre
778    
779    o new output for adjoin of global ocean vector invariant
780    o fix for checkpoint of thermodynamic seaice and bulk_force
781    o Steph gchem various cleanups
782    
783    checkpoint 51h_pre
784    o fixed some single quotes
785    o modify gchem pkg to be more versatile
786    o modifications to clean up dic pkg
787    o add pkg/cfc
788    
789    checkpoint51g_post
790    o provide links for ARPACK and ADM*TLM
791    o start removing verification/vero/
792    o update AD-related stuff
793      (in particular some IF-statements in model/src/ routines)
794    o adding to verification/global_ocean.90x40x15/ adjoint of
795      vector invariant setup
796    
797    checkpoint51f_post
798    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
799    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
800      of tracer Green's fucntions for ocean inversion project.
801    
802    checkpoint51f_pre
803    o Added on-the-fly spatial interpolation capability
804        "USE_EXF_INTERPOLATION" to pkg/exf.
805      - This is a temporary Cartesian-grid hack until
806        the super-duper ESMF coupler becomes available.
807      - See verification/global_with_exf/README for usage example.
808      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
809        flags and modified pkg/seaice accordingly.
810    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
811        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
812        non-local transport term.
813    
814    checkpoint51e_post
815    o pkg/mom_vecinv:
816      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
817      - add time-ave diagnostic of vorticity advection.
818    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
819    o atmospheric geopotential: - include water vapor effect;
820                                - use p^kappa in p* scaling.
821    o land pkg: read initial state from files.
822    o AIM : add stratospheric drag in the upper level
823    
824    checkpoint51d_post
825    o change function ILNBLNK (=> last non-blank char.) to return zero
826      (instead of the string length) when the string. char is empty
827    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
828    o modif's to restore TAMC compatibility
829      - avoid "_d" constructs in PARAMETER declarations
830      - avoid interrupting lines by comment lines
831    o Use cluster local disks for purely local I/O
832      vs. globally visible disks needed for ctrl stuff
833      (merged from ecco-branch)
834      - new active_file_loc... and mdsio_..._loc routines
835      - affected packages: autodiff, ctrl, grdchk, mdsio
836    
837    checkpoint51c_post
838    o introducing integer flag debugLevel
839      - debLevZero: suppress all output
840      - debLevA: standard
841      - debLevB: equivalent to current debugMode=.TRUE.
842    o introducing pathname variable mdsioLocalDir for mdsio
843      that can be specified at runtime
844      (relevant for cluster I/O to local disk)
845    `
846    >>>checkpoint51b_post
847    adjoint of ptracers
848    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
849    o extended state in checkpoint_lev?, etc.
850    o alternative ctrl/cost with tr1 or ptracer
851    o new comlev1_bibj_ptracers
852    o new ptracers.flow
853    o made ptracers_forcing same as external_forcing_s
854    o added verification for adjoint with ptracers
855      - adm. grdchk fail so far
856      - tlm. grdchk OK
857      - checked tapelev/comlev recomputations: OK
858    <<<checkpoint51b_pre
859    
860    checkpoint51a_post
861    o added code for biogeochemistry package
862      - new pkgs: dic, gchem
863      - new subroutine in ptracers
864    o modify code for biogeo packages
865      - in model/src and pkg/ptracers
866    
867    checkpoint51
868    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
869      - autodiff, ctrl, exf, grdchk, seaice
870      kept separate packages
871      - cost, ecco, obcs
872    o updating verification/internal_wave, verification/lab_sea
873      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
874    
875    checkpoint50i_post
876    o Preparing next differentiable checkpoint and sync
877      of MAIN vs. ecco-branch
878      - 1st step: this one is differentiable
879      - 2nd step: next(! not this) checkpoint will have updated packages
880                  from ecco-branch)
881    
882    checkpoint50h_post
883    o new package "land": provide surface BC for AIM.
884    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
885    o AIM: use true log-P extrapolation for near surface temp (= as in
886        F.Molteni paper) ; update aim.5l_cs output.
887    o New variable in PARM03 for more flexible pickups
888    o somewhat cleaned package initialisation sequence for
889      ctrl/ cost/ ecco/ in packages_... routines
890    
891    checkpoint50g_post
892    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
893      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
894      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
895        made the default because of faster convergence than ADI
896    
897    checkpoint50f_post
898    o exf totally restructured
899      - replaced all exf_set_ routines by one generic exf_set_gen.F
900        and made sure it's still differentiable
901      - split exf_getffields.F into new exf_bulkformulae.F
902      - exf_inscal_/exf_outscal_ suffixes consistent with field names
903      - updated adjoint/makefile and relevant verif. accordingly
904    
905    checkpoint50f_pre
906     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
907          + change Evap over land. (update aim.5l_cs output)
908     o added missing .cvsignores and made uniform across expts
909     o changed configuration of tidal_basin_2d expt
910     o added pkg/debug functions for tracing code in fatal crashes
911     o tidied pkg/monitor to use MONITOR_OPTIONS.h
912     o new fn in pkg/monitor to stop model if solution grows too big
913     o removed lots of single quotes from comments
914    
915    checkpoint50e_post
916    o make KPP work with PTRACERS
917     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
918       nearly a copy of kpp_transport_s
919     - there is no analogue to SurfaceTendencyS, so I have to use
920       gPtr(of the surface layer) instead
921    o add a new platform SunFire+mpi (SunFire 15000) to genmake
922    checkpoint50e_pre
923    
924    checkpoint50d_post
925    o change kpp output from multiple-record state files to single-record state
926      files analogous to write_state.F
927    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
928      analogous to the cg2d-related output.
929    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
930      so that writing to internal file fn (with length 512) fails.
931    checkpoint50d_pre
932    
933    checkpoint50c_post
934    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
935    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
936    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
937    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
938    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
939    
940    checkpoint50c_pre
941    Merging from release1_p13:
942    o bug fix for pkg/seaice dynamic solver
943    o Added SEAICE_initialHEFF to pkg/seaice
944    
945    checkpoint50b_post
946    o store u*,v* in gU,V instead of in guNm1,gvNm1
947    o in order to put the momForcing out of the Adams-Bashforth:
948      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
949      to timestep.F
950    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
951    o re-generate output for highly sensitive test-exp:
952       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
953    
954    checkpoint50b_pre
955    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
956    o corrected CPP option mismatch in exf_Bulk... functions for case
957      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
958    
959    checkpoint50a_post
960    o Bug fix for merging between c50 and KPP.
961      ikey was passed from thermodynamics to kpp_calc via
962      common block rather than being recomputed in kpp_calc,
963      in contradiction with new key itdkey.
964      New key ikppkey created, and tamc.h headers updated.
965    
966    checkpoint50
967    - 2nd step of merge with ecco-branch:
968      merge changes in ecco-branch back into main trunk
969    - bug fix in find_alpha
970    - more storing in gmredi_calc_tensor.F, kpp_routines.F
971    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
972    - merged some sliced AD support routines
973    
974    checkpoint49
975    merged from ecco-branch:
976    o exf:
977      - Enable initialisation of forcing fields to constant
978        (runtime) values.
979      - in exf_getffields.F
980        Reduce i-/j-loop to interior domain, discarding overlaps.
981        That also fixes wrong TAF-key computations for key_1, key_2
982        with bulf formulae.
983      - exf_init.F modify #ifdef for exf_init_evap
984      - exf_getffieldrec.F, ctrl_getrec.F
985        The following INT-usages are not safe:
986          fldsecs  = int(fldsecs/fldperiod)*fldperiod
987          fldcount = int(fldsecs/fldperiod) + 1
988        and were modified.
989    o autodiff: checkpoint_lev...
990      - updated storing for bulk formulae (some arrays were missing)
991      - added state for seaice package
992      - synchronized with main branch
993    o DIVA:
994      Modif.s in
995      - the_main_loop.F
996      - the_model_main.F
997      and added cost_final_restore.F cost_final_store.F
998      o With these changes, it is possible to fully separate
999        the first forward run to compute the cost function (mdthe_main_loop)
1000        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1001        into separate model executions.
1002        This enables better tuning of DIVA to given queue sizes.
1003      o Loss of cost function value in consecutive DIVA runs is
1004        fixed by storing to 'costfinal' file.
1005      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1006        beginning/end of adjoint integration is accounted for.
1007      The current changes apply to TAF-1.4.26.
1008      TAF has one remaining bug, requiring one manual change
1009      (see MITgcm manual).
1010    o cal: synchronized between MAIN and ecco-branch
1011    
1012    checkpoint48i_post
1013    o Changes to restore differentiability of code w.r.t. previous tag
1014      (mostly adding new routines to make list and replacing
1015      pressure by totPhiHyd).
1016    o Updated and merged grdchk package
1017      - has both ADM and TLM checks
1018      - works for single- and multi-proc.
1019      - output cleaned
1020      - worked successfully for parallel DIVA
1021    o genmake:
1022      - Adding -platform=SP4
1023      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1024    o Modif. for DIVA:
1025      ctrl_unpack should not be called in intermediate DIVA interval.
1026      (similar thing would apply for active files such as
1027      tbar, sbar, psbar, which should not be reinitialised;
1028      only relevant for ecco-branch)
1029    
1030    checkpoint48h_post
1031    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1032    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1033    o Added SEAICE_initialHEFF to pkg/seaice
1034    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1035    
1036    checkpoint48g_post
1037    --- EOS:
1038    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1039      store total Potential in totPhyHyd for diagnostics & EOS.
1040    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1041    --- Pressure/geopotential gradient:
1042    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1043    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1044      ( changes results of global_ocean_pressure )
1045    o NLFS + z-coord.: add eta*Rho' contribution.
1046    o accurate phiHyd when using interface-W at the middle between 2 centers
1047     ( changes results of ideal_2D_oce )
1048    o includes r* 2nd term in potential gradient.
1049    
1050    checkpoint48f_post
1051    Merging from release1_p12:
1052    o Modifications for using pkg/exf with pkg/seaice
1053      - improved description of the various forcing configurations
1054      - added basic radiation bulk formulae to pkg/exf
1055      - units/sign fix for evap computation in exf_getffields.F
1056      - updated verification/global_with_exf/results/output.txt
1057    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1058      (SBO) core products, including oceanic mass, center-of-mass,
1059      angular, and bottom pressure (see pkg/sbo/README.sbo).
1060    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1061      to avoid negative values in shallow regions.
1062      - updated verification/natl_box/results/output.txt
1063      - updated verification/lab_sea/results/output.txt
1064    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1065    o Added useSingleCpuIO option (see PARAMS.h).
1066    o Updated useSingleCpuIO option in mdsio_writefield.F to
1067      work with multi-field files, e.g., for single-file pickup.
1068    o pkg/seaice:
1069      - bug fix in growth.F: QNET for no shortwave case
1070      - added HeffFile for specifying initial sea-ice thickness
1071      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1072    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1073      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1074    o pkg/seaice:
1075      - adjoint-friendly modifications
1076      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1077    
1078    checkpoint48e_post
1079    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1080    o dynamics: change definition of computational domain & adapt mom_fluxform
1081      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1082    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1083        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1084        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1085        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1086        inverted_barometer solid-body.cs-32x32x1
1087      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1088    
1089    checkpoint48d_post
1090    o in preparation for r*:
1091     a) use pre-computed gradient of hydrostatic potential:
1092        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1093     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1094        => affects results of glob_oce_pressure (different truncation error)  
1095      update output.txt of ideal_2D_oce & global_ocean_pressure
1096    
1097    checkpoint48d_pre
1098    o in preparation for r*:
1099      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1100      pass the 2 comp. of the grad. as arguments to momentum S/R.
1101      but for the moment, only used if it does not change the results.
1102    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1103    
1104    checkpoint48c_post
1105    Modifications in treatment of initial flux forcing controls
1106    to avoid extra storing of flux fields.
1107    
1108    checkpoint48c_pre
1109    o Added tidal_basin_2d experiment (currently 1D!)
1110    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1111    
1112    checkpoint48b_post
1113    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1114     (modification to pressure gradient not yet implemented)
1115    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1116      (for U & V) that are used for vertical advection of momentum.
1117    
1118    checkpoint48a_post
1119    o In preparation for r*, use temp. array to compute vertical transport
1120       in flux-form momentum pkg. => change results of few test-exp.
1121      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1122                        lab_sea, natl_box & plume_on_slope
1123    
1124    checkpoint48
1125    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1126    
1127    checkpoint47j_post
1128    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1129    o moved adexch from forward_step to addummy_in_stepping
1130    o added exch in ctrl_map_...
1131    o aveFreq.=0. at end of cost_final to avoid overwrite in
1132      reverse checkpointing loop
1133    o Yet more changes in gmredi:
1134      * adgmredi_calc_tensor
1135        avoiding all recomputation of gmredi_slope_limit
1136      * adgmredi_x/y/rtransport
1137        added flag for excessive storing to avoid recomp. of
1138        u/v/rtans, dTdx/y/z
1139        -> this is not really necessary and very memory-consuming
1140      * adgmredi_slope_psi:
1141        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1142      * gmredi_slope_limit
1143        re-activated full calculation of taperfct for case 'ac02'
1144    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1145    
1146    checkpoint47i_post
1147    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1148    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1149      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1150    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1151    o gmredi: fix few bugs.
1152    
1153    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1154    This will be a good checkpoint to plug into the ecco-branch.
1155    o few modif.'s to get latest version adjointed
1156      (mainly kick out code in ini_linear_phisurf)
1157    o modif's to run adjoint with exactConserv
1158    o case GM_BOLUS_ADVEC should be cleaned
1159      S/R gmredi_slope_psi should be cleaned
1160    o verification/carbon now has exactConserv=.TRUE.
1161    
1162    checkpoint47g_post
1163    o time-average AIM output: becomes independent from statvars time-average
1164      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1165    o After TAF bug fix:
1166      Tested adjoint of gmredi package.
1167      Tests were done with checkpoint47 rather than with latest
1168      checkpoint47f_post since the latter is broken for the adjoint
1169      verification/carbon/ contains both ADM and TLM gradient checks.
1170    Here they are, before they get changed/lost/stolen.
1171    Mostly modif.'s to fix numerical sensitivities.
1172    Gradient checks OK for
1173    - GM_taper_scheme:
1174      * clipping
1175      * ac02
1176      * linear
1177      * glw91
1178      * dm95
1179      * ldd97
1180    - GMREDI_OPTIONS:
1181      * GM_VISBECK_VARIABLE_K
1182      * GM_NON_UNITY_DIAGONAL
1183      * GM_EXTRA_DIAGONAL
1184      * GM_BOLUS_ADVEC
1185    in conjunction with data.gmredi parameters to be checked in
1186    in a few minutes under verification/carbon/code/
1187    
1188    checkpoint47f_post
1189    Merging from release1_p10:
1190    o modifications for using pkg/exf with pkg/seaice
1191      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1192        and SEAICE_EXTERNAL_FLUXES
1193      - pkg/exf CPP options EXF_READ_EVAP and
1194        EXF_NO_BULK_COMPUTATIONS
1195      - usage examples are Experiments 8 and 9 in
1196        verification/lab_sea/README
1197      - verification/lab_sea default experiment now uses
1198        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1199    
1200    checkpoint47e_post
1201    o created a tag prior to creating a branch
1202    
1203    checkpoint47d_post
1204    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1205      at the bottom boundary had an erroneous half slip boundary condition
1206    o added bottom drag and no slip boundary condition capabilities to
1207      oceanic pressure coordinates code
1208    o added new verification experiment global_ocean_pressure, this experiment is
1209      also described in the tutorial section of the manual
1210    checkpoint47d_pre
1211    
1212    checkpoint47c_post
1213    o Added a verification experiment for a global cubed-sphere ocean run
1214      -  verification/global_ocean.cubed32x32x30
1215      -  uses pkg/therm_seaice and pkg/bulk_forcing
1216    
1217    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1218    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1219      when using P-coordinate; only implemented for atmospheric config.
1220    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1221      NOTES: requires option NONLIN_FRSURF to be "#define".
1222    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1223    
1224    checkpoint47b_post
1225    Merging from release1_p9:
1226    o pkg/seaice
1227      - removed GOTO's and added taf directives
1228      - double precision constants to reduce the g77 (Linux)
1229        to F77 (SGI) differences reported in release1_p8
1230    o tools/genmake
1231      - added SGI options
1232    o verification/testscript
1233      - updated to that of checkpoint47a_post
1234    o verification/global_ocean.90x40x15/input/eedata
1235      - modified for SGI f77 compatibility
1236    o verification/lab_sea
1237      - added description of sea-ice model
1238      - added missing matlab routines
1239      - added test of thermodynamics parallelization
1240    
1241    checkpoint47a_post
1242    o new pkg: aim_v23
1243     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1244       for now, keep the same surface forcing as before.
1245     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1246     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1247     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1248    o add diagnostic of surface correction term in monitor output
1249    
1250    o bulk_force and therm_seaice
1251    - Two packages:  bulk_force (Bulk forcing)
1252      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1253    - Earlier integration from Stephaine Dutkiewicz
1254      and Patrick Heimbach.
1255    - Two ifdef statements for compile time,
1256       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1257    
1258    checkpoint47
1259    differentiable version of checkpoint46n_post
1260    o bug fix in quasihydrostaticterms
1261    o * "clean" adjoint code (in terms of extensive recomputations)
1262        can now be obtained for all GMREDI options (i.e. for
1263        - GM_VISBECK_VARIABLE_K
1264        - GM_NON_UNITY_DIAGONAL
1265        - GM_EXTRA_DIAGONAL
1266        - GM_BOLUS_ADVEC )
1267      * However, wrong gradient check problem remains unsolved.
1268      * New CPP options have been introduced for different
1269        tapering schemes
1270    o external_fields_load now part of differentiation list
1271    o pressure needs multiple storing;
1272      would be nice to have store_pressure at beginning or
1273      end of forward_step, e.g. by having phiHyd global (5-dim.)
1274      (NB: pressure is needed for certain cases in find_rho,
1275      which is also invoked through convective_adjustment).
1276    o recomputations in find_rho for cases
1277     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1278    o #define ATMOSPHERIC_LOADING should be differentiable
1279    o ini_forcing shifted to begining of initialise_varia
1280    o Incorporating QNVS line search routines into MITgcm
1281      (this is separate code, and therefore not under pkg)
1282      lsopt/, optim/
1283    o Updated verification/carbon/
1284      - #define GM_VISBECK_VARIABLE_K
1285      - GM_taper_scheme    = 'ldd97'    
1286    
1287    checkpoint46n_post
1288    Merging from release1_p8:
1289    o verification/natl_box:
1290      updating new external_fields_load routine
1291    o New package: pkg/seaice
1292      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1293      The sea-ice code is based on Hibler (1979-1980).
1294      Two sea-ice dynamic solvers, ADI and LSR, are included.
1295      In addition to computing prognostic sea-ice variables and diagnosing
1296      the forcing/external data fields that drive the ocean model,
1297      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1298      The implied surface heat flux is then stored in variable
1299      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1300      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1301      non-local transport term.  Because this call precedes model
1302      thermodynamics, temperature under sea-ice may not be "exactly" at
1303      the freezing point by the time theta is dumped or time-averaged.
1304      N.B.: fairly large differences in accuracy occur across
1305            different platforms/compilers; comparison between
1306            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1307            generated output gives:
1308       T           S           U           V
1309      C D M    c        m  s        m  s        m  s        m  s
1310      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1311      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1312      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1313    
1314      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1315    o GAD:
1316      - generated new common blocks to account for call of
1317        same gad routines with differing traceridentities
1318        (needed to modify tracerIdentity indices in GAD.h)
1319      - generated separate common blocks for case useCubedSphereExchange
1320        (Department of Futurology)
1321      - parameter lists to gmredi_?transport: added tracerIdentity
1322      - added new key indices to tamc.h
1323    o external_fields_load:
1324      - added this routine to TAF list
1325      - needed to make some common blocks global and additional storing
1326        along the same lines as exf package (checkpoint_lev?_directives.h)
1327    o exf:
1328      updated external forcing package
1329      - bug fixes carried over from ecco-branch
1330        (missing OBCS_OPTIONS.h in two routines)
1331      - enable easy to use "no forcing".
1332      - added exf I/O for atmospheric loading
1333      - added exf I/O for runoff data
1334      - transfered scaling between exf <-> MITgcm to exf namelist
1335    o Adding new verification experiment global_with_exf.
1336      This verification experiment is almost identical to the
1337      global_ocean.90x40x15 experiment, except that it uses
1338      the exf (and cal) package instead of the
1339      external_fields_load routine (cf README file).
1340    
1341    checkpoint46m_post
1342    o modified testscript to return -- when there are no lines of "%MON" output
1343    o added new flag "quasiHydrostatic" for QH mode
1344      and new routine quasihydrostaticterms()
1345    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1346      New routine: mom_u_coriolis_nh()
1347    o fixed sign of non-hydrostatic metric terms in u and v equations.
1348      Depend on correct sign of gravitySign.
1349    o added work.pc* to .cvsignore in aim directories using ifc
1350    o introduced flag for controllin non-hydrostatic metric terms
1351    o removed gravitySign from PARM04
1352    o switched to g77/ifc from pgf77 in aim experiments
1353    
1354    checkpoint46l_post
1355    o made convective adjustment work with pressure coordinates:
1356     - changed the direction of k-loop in convective_adjustment.F for the
1357       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1358     - adjusted the reference pressure k-index in convective_adjustment.F
1359     - adjusted the convection condition in convect.F (in analogy to
1360       calc_ivdc.F)
1361     - convective_adjustment no longer computes anything on the halos
1362     - removed the warnings about negative salinity from find_rho.F and
1363       find_alpha.F; instead the new routine look_for_neg_salinity, called
1364       at the beginning of find_rho, find_alpha, and find_beta, does a
1365       check of the entire slice, if CPP-option
1366       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1367    checkpoint46l_pre
1368    
1369    checkpoint46k_post
1370    o fixed the verification/global_ocean.90x40x15 experiment:
1371     - new bathymetry (the world according to A., JMC, and M.)
1372     - new initial fields and forcing fields (*.bin files)
1373     - new POLY3.COEFFS (for the next release one should switch to a full
1374       equation of state: JMD95P or MDJWF)
1375     - fixed several errors and redundancies in the data file
1376     - experiment uses looped cells
1377     - added matlab directory with diagnostic scripts for plotting of output
1378    
1379    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1380     - read AIM physics parameters from a file (data.aimphys)
1381     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1382    
1383    checkpoint46j_post
1384    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1385    o move wVel computation at the end of the time step, in S/R integr_continuity
1386    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1387    o update timeave pkg for wVel diagnostic.
1388    checkpoint46j_pre
1389    
1390    checkpoint46i_post
1391    o Clean up AIM package (and keep the results unchanged):
1392      include CPP_OPTION and use IMPLICT NONE in all routines ;
1393      declare all the variables _RL ; use _d 0 for all numerical constants.
1394      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1395    
1396    checkpoint46h_post
1397    o cleaned up the use of rhoNil and rhoConst.
1398      - rhoNil should only appear in the LINEAR equation of state, everywhere
1399        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1400        and the dynamical equations are all divided by rhoConst
1401    o introduced new parameter rhoConstFresh, a reference density of fresh
1402      water, to remove the fresh water flux's dependence on rhoNil. The default
1403      value is 999.8 kg/m^3
1404    o cleanup up external_forcing.F and external_forcing_surf.F
1405      - can now be used by both OCEANIC and OCEANICP
1406    checkpoint46h_pre
1407    
1408     Added code to convert surface volume flux (fresh water) into
1409     a mass flux when using P coordinates in the ocean (OCEANICP).
1410     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1411    
1412    checkpoint46g_post
1413    o Include a new diagnostic variable phiHydLow for the ocean model
1414      - in z-coordinates, it is the bottom pressure anomaly
1415      - in p-coordinates, it is the sea surface elevation
1416      - in both cases, these variable have global drift, reflecting the mass
1417        drift in z-coordinates and the volume drift in p-coordinates
1418      - included time averaging for phiHydLow, be aware of the drift!
1419    o depth-dependent computation of Bo_surf for pressure coordinates
1420      in the ocean (buoyancyRelation='OCEANICP')
1421      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1422        Theta, Salinity, and Pressure in the parameter list. This routine is
1423        presently contained in find_rho.F. This routine does not give the
1424        correct density for 'POLY3', which would be a z-dependent reference
1425        density.
1426    o cleaned up find_rho
1427      - removed obsolete 'eqn' from the parameter list.
1428    o added two new verification experiments: gop and goz
1429      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1430    checkpoint46g_pre
1431    
1432    checkpoint46f_post
1433    o Enable tangent linear (forward mode) gradient checks:
1434      - extended active file handling to g_... files
1435      - added TANGENT_SIMULATION to theSimulationMode
1436      - extended grdchk package accordingly
1437    o added tangent linear setup in verification/carbon/code_ftl
1438    o added adjoint setup in verification/front_relax/code_ad
1439    
1440    checkpoint46e_post
1441    o Added new equation of state -> MDJWF
1442      - EOS of McDougall et al., 2002, JAOT, submitted
1443      - caveat: the equation of state is only valid for a smaller (more
1444        realistic?) range of values than JMD95P/Z and UNESCO
1445      - added masks to the calculation of pressure in store_pressure
1446      - added more check values for density in check_eos (ini_eos.F), some of
1447        the old check values are out of the range of the MDJWF-eos, so don't
1448        expect perfect matches for those
1449    checkpoint46e_pre
1450    
1451    checkpoint46d_post
1452    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1453      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1454      case of pressure coordinates. eosType='JMD95Z' in
1455      combination with buoyancyRelation='OCEANICP' now causes an error.
1456    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1457      in find_alpha/beta.
1458    checkpoint46d_pre
1459    
1460    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1461      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1462    
1463    checkpoint46c_post
1464    o Changes necessary for ocean in p-coordinates
1465     -  Added new buoyancy relation = 'OCEANICP'
1466     -  Added new parameters = gravitySign (this used to be contained inside
1467        the factor dRdZ which I added when we first switched to R coordinates).
1468     X GM/Redi is not compatible (yet)
1469     X bottom drag and no-slip need to be debugged.
1470    checkpoint46c_pre
1471    
1472    checkpoint46b_post
1473    o Added new equation of state -> JMD95Z and JMD95P
1474      - EOS of Jackett and McDougall, 1995, JAOT
1475      - moved all EOS parameters into EOS.h
1476      - new routines ini_eos.F, store_pressure.F
1477    o Added UNESCO EOS, but not recommended because it requires
1478      in-situ temperature (see JMD95)
1479    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1480      unesco.f to be used with POLY3
1481    checkpoint46b_pre
1482    
1483    checkpoint46a_post
1484    o Added (atmospheric) pressure loading
1485      - new field in FFIELDS.h, etc...
1486      - new cpp flag ATMOSPHERIC_LOADING
1487    o Changed hFacC to _hFacC in calc_phi_hyd.F
1488    o Added SHORTWAVE_HEATING to some files for consistency
1489    checkpoint46a_pre
1490    
1491    checkpoint46
1492    further merges from release1_p5
1493    o new ctrl package
1494      - adopted from ECCO environment to enable optimization
1495      - added Eliassen Palm fluxes to controls
1496    o added Eliassen Palm flux controls to gradient check package
1497    o cost package
1498      - Compatible with new ctrl package
1499      - added Eliassen Palm cost hooks
1500      - modif's of existing cost functions
1501    o Adjoint-related bug fixes in kpp:
1502      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1503      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1504    o autodiff package
1505      - flow directives:
1506        + new for S/R do_the_model_io
1507        + enhanced for S/R checkpoint
1508        + new gmredi.flow
1509      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1510        disable adcommon.h/g_common.h by default.
1511      - fixed problem for adjoint of global_max
1512    o modified verification/carbon/
1513    o New setup for adjoint of global_ocean
1514    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1515    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1516    o incorporated hooks for sponge layer code (external_forcing.F)
1517    
1518    checkpoint45d_post
1519    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1520    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1521      (affects plume_on_slope "cg2d" output)
1522    o add new parameter deltaTfreesurf for free-surface time stepping
1523    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1524    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1525    o change phiMin in exp1 (to agree with documentation)
1526    o add new flags:
1527     - T,S forcing inside/outside Adams-Bashforth
1528     - turn off temp,salt advection and/or forcing
1529     - for each tracer, define internal flag for multiDimAdvection & A-B
1530    o monitor: change definition of KE to check conservation of Energy
1531    
1532    checkpoint45c_post
1533    o Removed f90 comments ("!")
1534    o Modified initialisations to enable exf package for MITgcm
1535      (without invoking ECCO_PACKAGE).
1536    o modifications to gradient check package (Martin Losch)
1537      - enable centered differences
1538      - modified format of standard output
1539    
1540    checkpoint45b_post
1541    o cleaned exchange calls in cg2d
1542    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1543    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1544      to configure barotropic setup (Martin Losch)
1545    o moved some initialisations within bi,bj loop in dynamics
1546      (TAF flow dependency)
1547    o in initialise_varia, moved call packages_init_variables
1548      before convective_adjustment_init
1549      (corresponding adjustment of TAF tape initialisation).
1550    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1551    
1552    checkpoint45a_post
1553    o compute Rho over the whole domain (extend iMin,jMin indices)
1554    o specific exchange for X-slice domain (case Ny=1)
1555    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1556    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1557    
1558    checkpoint44h_post = checkpoint45
1559    o Fix to restore differentiability:
1560      place at which packages_init_variables is called in
1561      initialise_varia is crucial for reverse control flow.
1562    o modifications in GMRedi to enable stable adjoint
1563      (corresponding modif's in thermodynamics, dynamics)
1564    o added missing hook for sponge layer code in external_forcing
1565    o modified test cost functions
1566    o storing in gad_advection (plus removal of write(0,*)!
1567    o missing headers TR1.h added in convective_adjustment routines
1568    o errorMessageUnit set non-equal zero in eeboot
1569      (conflict on some platforms, e.g. IBM SP3)
1570    o modified carbon verif.
1571    
1572    checkpoint44h_pre
1573    o vertical grid option: allow to put the Interface at the middle between
1574      2 cell-centers ; replace delZ in pkg/kpp by drF.
1575    o GM Advective form: Tracers are advected using the residual transport (=
1576      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1577    
1578    checkpoint44g_post
1579    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1580      results) ; ifdef missing in thermodynamics.F
1581    
1582    checkpoint44f_pre,checkpoint44f_post
1583    o added PTRACERS package
1584      This allows an arbitrary number of passive tracers to be integrated
1585      forward simultaneously with the dynamicaly model.
1586      + Implemented so far:
1587        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1588        - I/O and checkpointing
1589        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1590      + Not implemented so far:
1591        - KPP
1592        - OBCS
1593      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1594        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1595        line in data.pkg.
1596      + This package is disabled by default since it increases storage.
1597    
1598    
1599    o testscript: added -cleanup option
1600    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1601                 b) enable to filter 2D fields.
1602    
1603    checkpoint44e_pre,post
1604    o re-wrote convective adjustment to use pre-calculated weights
1605      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1606      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1607      Original calls to convect() still in place.
1608    
1609    chkpt44d_pre,post
1610    o added missing EXCLUDE_MONITOR flags
1611    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1612      (incompatible typ in MIN/MAX expressions caused problems
1613      on IBM SP3)
1614    o in genmake added variable MAKEDEPEND
1615      plus resetting for case SunOS
1616    o added timer_stats.c routine for IBM SP3
1617    o removed variables in dynamics
1618    !!! I forgot to create tag chkpt44d_pre !!!
1619    !!! But chkpt44d_pre = chkpt44c_post    !!!
1620    
1621    o real fresh water flux implemented with non-linear free-surface.
1622    
1623    chkpt44c_pre,post
1624    o few fix (mask in shap_s2, EmPmR in external_field_load,
1625      USE_NATURAL_BCS in solve_for_P);
1626    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1627    
1628    checkpoint44b_pre/_post
1629    o merge of relevant stuff from the ecco-branch:
1630      - genmake: removed $S64 overwrite for case SunOS
1631      - pkg/exf: update and corrections for field swapping and obcs
1632      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1633                  harmonized between ECCO and MITgcm
1634      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1635                      updated checkpointing_lev... lists for obcs
1636      - model/src: minor changes in forward_step, plot_field
1637                   added directive for divided adjoint in the_main_loop
1638      - pkg/mdsio: added mdsio_gl_slice
1639    
1640    o check parameters & config (chkpt44a_pre,post)
1641    o OBC and NonLin_FrSurf.
1642    
1643    checkpoint44
1644    o fix bug in mom_vi_del2uv
1645    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1646    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1647    o update AIM experiments (NCEP input files)
1648    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1649    o added some stuff for AD
1650    
1651    checkpoint43
1652    o added two new advection tests
1653    o added global 4x4 degree ocean test
1654    o added test of H&S94 with free surface on cube
1655    o some final mods for gradient check, adjoint,...
1656    
1657    checkpoint42
1658      Fixed AD-related problems:
1659    o Store directives up-to-date with re-arranged Adams-Bashforth
1660      (mainly thermodynamics.F)
1661    o New store directives for multi-dim. advection schemes
1662      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1663      * new common block and key passkey
1664      (mainly gad_advection.F)
1665    o Modified store directives for split of dynamics/thermodynamics
1666      for the case ALLOW_KPP
1667    o Cleaned argument list for timestep_tracer.F
1668    
1669    checkpoint41
1670    o re-formatted/added comments in prologues of key subroutines
1671      to work with protex
1672    
1673  checkpoint40  checkpoint40
1674  o all changes of checkpoint40pre?  o moved calc_gs, calc_gt and calc_tr1 back to model/src
1675    o added FLT (floats) package from Arne along with demo. experiment
1676    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1677      implementation of forward-in-time forcing terms
1678    o more mods for non-linear free-surface including new variable
1679    o modified multi-dim method to work on cube
1680    o bug fix in KPP (from DM)
1681    
1682    checkpoint40pre9
1683    o added DST advection schemes
1684    o fix MPI bug on SGI's
1685    o modifications for non-linear free-surface
1686    o fixed conditionals for fixed flow/passive tracer only mode
1687    o added tension/strain form of stress tensor
1688    o changes to commenting of arguments for TAF/TAMC
1689    o added/updated many matlab scripts
1690    o added multi-dimensional advection method for tracers
1691      
1692    checkpoint40pre8
1693  o new package rw/  o new package rw/
1694    Added method for dumping intermediate local arrays:    Added method for dumping intermediate local arrays:
1695    mdsio_writetile - same as mdsio_writefield except works from inside    mdsio_writetile - same as mdsio_writefield except works from inside

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