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revision 1.8 by adcroft, Wed Jul 1 22:49:29 1998 UTC revision 1.374 by afe, Thu Oct 21 21:14:02 2004 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
6      configuration
7    o give MNC the ability to create additional files rather than
8      exceeding a specified file size limit "MNC_MAX_FILESIZE"
9      - the default is just less than 2GB which is a practical limit
10        on many systems
11    o Compute the non-local term using either KPP vertical diffusivity (=default)
12       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
13    
14    checkpoint55h_post
15    o add verification test "vermix"
16    o remove all the *_ioinc flags and replace with the single global
17      outputTypesInclusive flag
18    o allow to set a vertical profile of vertical diffusivity for T & S
19    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
20    o useMNC moved from data.mnc to data.pkg
21    
22    checkpoint55g_post
23    o Renaming carbon AD experiments to comply with testreport conventions
24    o Updating adjoint of Held-Suarez hs94.1x64x5
25    o Fixing directives for non-ECCO forward_step, after ECCO directives
26      have been fixed to avoid recomp. of do_oceanic_phys
27      Works well for global_ocean.90x40x15,
28      but recomp. issue remains for carbon
29    o Updating adjoint output for natl_box_adjoint after
30      pkg/ecco has been modified (see taga c55d_post)
31    
32    checkpoint55f_post
33    o rename to timeave_init_fixed
34    
35    checkpoint55e_post
36    o some delicate re-shuffle of store directives to avoid one
37      extra call of do_oceanic_physics
38      affects ecco_the_main_loop.F, do_oceanic_physics.F
39      checkpoint_lev1_directives.h
40    o NB: this may break global_ocean adjoint temporarily,
41      but it is clear how to fix it. Will do later, need this now.
42    
43    checkpoint55d_post
44    o ECCO specific cost function terms (up-to-date with 1x1 runs)
45    o ecco_cost_weights is modified to 1x1 runs
46    o modifs to allow observations to be read in as
47      single file or yearly files
48    o enable to read exf forcing fields as either
49      single file or yearly files (flag useExfYearlyFields)
50    checkpoint55d_pre
51    
52    o switch between 2-level and 3-level checkpointing
53    o add ability of MNC to write local and "partial" (eg. 2D slices where
54      the full 3D field is never actually stored) arrays to NetCDF files
55      with the correct (that is, the complete multi-dimensional) set of
56      array indicies
57      - used in mom_vecinv() to write the diagFreq output
58      - tested (demonstrated) in verification/aim.5l_cs
59    o further mnc-ification
60      - add verification/lab_sea to the list with mnc setups
61      - fix undefined mnc v-names in cd_code
62      - add kpp to mnc output (both snapshot and timeave)
63    o non-hydrostatic code
64      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
65        in calc_gw.F
66      - defaults to viscAh
67      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
68        friction or Leith) in non-hydrostatic mode, as long as there is
69        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
70    o pkg/cost
71      extend simple cost functions to treat time mean quantities
72      (T,U,V) via cost_accumulate_state from cost_tile
73    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
74        be 2 times larger than the minimum size the advection scheme requires.
75        now get a perfect conservation of salt in advect_cs test-exp (updated)
76    o GGL90 (Gaspar's TKE mixed layer)
77      - add horizontal diffusion of TKE, requires exchanges in
78        do_fields_blocking_exchanges, horizontal diffusivity is zero by
79        default. In OPA there is no horizontal diffusion of TKE but the
80        mixing coefficients are computed from a horizontal average of TKE of
81        6 points or so. I think that diffusion has a little more physical
82        justification.
83      - clean up ggl90_calc in the hope of reducing memory usage (this hope
84        was in vain)
85      - mask tke-variable in ggl90_init
86    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
87    o fix biharmonic diffusion on CS-grid.
88    o more obcs stuff
89      - added obcs_external_fields_load as an alternative to the EXF-pkg option
90        for reading boundary values. This routine is called from
91        obcs_prescribe_read
92      - updated obcs_check
93      - changed sponge layer relaxation parameter units for days to seconds
94      - turned off sponge layer by default
95      - changed argument list of OBCS_CALC to myTime+deltaTclock
96      - fixed about 35 bugs in obcs_external_fields_load
97    
98    checkpoint55c_post
99    o obcs stuff
100      - new runtime flags useOBCSprescribe, useOBCSbalance
101      - re-arranged obcs_calc
102      - moved exf_getobcs to obcs_prescibe_read
103        obcs_prescibe_read is called after ORLANSKI stuff
104        and independent of it (executable can contain all).
105      - updated obcs_check
106      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
107        These may be necessary only if tangential velocities are
108        prescribed at OB, not sure, needs testing.
109    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
110      which simplifies the calls and passes the ifc check-bounds test
111    
112    checkpoint55b_post
113    o add a 2D scalar, Z location, exchange_2 routine.
114    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
115      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
116      affects advect_cs results (for the wrong reason): update output.txt
117    o use a more standard discretization for biharmonic viscosity ;
118     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
119      affects results of dome set-up: update output.txt
120    o fix gad_advection.F (CubedSphere part), back to version 1.23
121    o fix bug in mom_vi_del2uv.F (CubedSphere part).
122    
123    checkpoint55a_post
124    o merged code to
125      * prescribe/read time-dependent open boundaries
126        (works in conjunction with exf, cal)
127      * sponge layer code for open boundaries
128      * each boundary N/S/E/W now has its own CPP option
129        (healthy for the adjoint)
130    
131    checkpoint55
132    o up-to-date adjoint of previous breaks
133      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
134      - global_ocean_ebm: adjoint still needs fix (TLM ok)
135      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
136      - carbon: * remove tr1-related adjoint verification
137                * add ptracer as control variable
138    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
139      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
140    
141    checkpoint54f_post
142    o in verification/carbin/ remove experiment related to
143      ALLOW_PASSIVE_TRACER (array tr1 etc)
144      code_ad/ input_ad/ results_ad
145    
146    o add two new packages
147      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
148        + subject to optimization (memory)
149      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
150        + subject to reordering (many GOTOs in the original code)
151        + so far opps is called for every (i,j) point, and then operates in
152          the vertical; one may want to reorder the scheme in order operate in
153          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
154          fields)
155    o overhaul of IO so that we now have flags for MDSIO and/or MNC
156      - all verification tests compile and run with linux_ia32_g77
157      - defaults are compatible with current input files--nothing
158        should change if you were not previously using MNC
159      - MNC output has been added in numerous places (eg. timeave)
160        but there are still a few writes not yet do-able with MNC
161        (this is in progress)
162      - flags now allow for either/or/both use of MDSIO and MNC and
163        documentation will soon follow
164      - numerous small formatting cleanups for ProTeX
165    o add version info (via BUILD_INFO.h) to MNC and stdout
166    
167    checkpoint54e_post
168    o add two new packages
169      - pp81 (Packanowski and Philander, 1981), Richardson number and
170        stratification dependent mixing
171      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
172      - these scheme operate in a similar manner as KPP (without ghat, of
173        course), however there is only one diffusivity that is used for both
174        temperature and salinity (and passive tracers)ç
175    o add offline package
176    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
177      provided by Stephanie Dutkiewicz
178    o genmake2: add ability to search for C compilers and cleanup test output
179      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
180    
181    checkpoint54d_post
182    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
183    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
184      leading to additional shift by 5 days each year of integration
185       (i.e. leading to considerable offset over the years)
186    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
187    o start with no AB and no initial filtering (staggerTimeStep):
188      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
189    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
190      (external loading & cpl import/export stay in forward_step.F)
191    o update coupling interface to work with new staggerTimeStep
192    o change MDSIO ptracers_pickup.
193    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
194    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
195    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
196    
197    checkpoint54c_post
198    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
199      this affects (truncation error) output.txt of test-exp:
200       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
201    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
202    o change Qnet to always be the net heat flux, (+upward).
203      affects (truncation error) output of natl_box exp.: updated
204    o define the max number of passive tracers in PTRACERS_SIZE.h
205    o start to test mnc routinely in exp0
206    o add sea-ice loading (sIceLoad) as a new forcing field.
207    
208    checkpoint54b_post
209    o add testreport "-j JOBS" option for parallel builds (tested and pretty
210       impressive on Altix and Opteron systems)
211    o diagnostics can now write NetCDF files through the mnc package
212    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
213    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
214    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
215      affects (truncation error) output of lab_sea & natl_box exp.: updated
216    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
217    
218    checkpoint54a_post
219    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
220    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
221    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
222    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
223      + internal_wave (shift in writing cg2d_ini_res)
224    checkpoint54a_pre
225    
226    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
227      - modified verification/lab_sea and natl_box_adjoint accordingly
228    
229    checkpoint54
230    checkpoint53g_post
231    o prepare splitting of thermodynamics: store convect.counter in common block
232    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
233      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
234    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
235    o new parameter "nShapS": allow to treat differently S from T (nShapT)
236    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
237    o restore adjointability
238    
239    checkpoint53f_post
240    o modifications that affect AIM experiment results (update output.txt):
241      - no advection of S at top interface Nr (pkg/generic_advdiff)
242      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
243    o AIM pkg:
244      - include stability function into surf.Flux derivative relative to Tsurf
245      - calculate clear-sky radiation & surface temp. change (for diagnostics)
246    
247    checkpoint53e_post
248    o merged cylindrical coord configuration
249    o added rotating_tank experiment
250    checkpoint53e_pre
251    
252    checkpoint53d_post
253    o faulks upgraded: re-generate output.txt that have changed:
254       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
255    o Added Bryan and Lewis, 1979, vertical diffusivity profile
256    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
257    o added Sadourny discretization of Coriolis
258      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
259      - re-enabled use of omega3 (useAbsVorticity)
260    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
261      vector-invariant equations
262      - note: does *NOT* yet use same variable visc. for no-slip BC's.
263    o recoded the lateral boundary conditions for non-hydrostatic w, this time
264      hopefully without new bugs
265      - still to do: biharmonic friction for non-hydrostatic w
266    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
267    o regenerated output for global_ocean_ebm (using -ieee)
268    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
269      of mom_common/
270      - simple re-arrangement of instructions within computing loop
271    checkpoint53d_pre
272    
273    checkpoint53c_post
274    o new version of coupler for AIM+thSIce and Ocean models
275     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
276     - land: change Evaporation of snow
277     - aim with thSIce: fix bug in snow-precip.
278    o changes to calc_gw.F
279     - bug fix for w^2 term near the bottom boundary
280     - (hopefully) improve the lateral slip boundary condtions for use with
281        partial/looped cells
282      - because the bug fix changes two verification experiments anyway (exp5
283        and plume on slope), change the lateral boundary condition from half slip
284        to the value of no_slip_sides
285    o ebm package wasnt quite up to the parallel task. Fixed that.
286    o Adjoint of EBM package + verification
287      * TLM OK
288      * ADM not sufficient accuracy yet (needs further testing)
289    
290    checkpoint53b_post
291    o Commiting new energy balance model to repository
292      * package is pkg/ebm
293      * verif. is verification/global_ocean_ebm
294      * references are in ebm_driver.F
295    C      * X. Wang, P. Stone and J. Marotzke, 1999:
296    C        Global thermohaline circulation. Part I:
297    C        Sensitivity to atmospheric moisture transport.
298    C        J. Climate 12(1), 71-82
299    C      * X. Wang, P. Stone and J. Marotzke, 1999:
300    C        Global thermohaline circulation. Part II:
301    C        Sensitivity with interactive transport.
302    C        J. Climate 12(1), 83-91
303    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
304    C        Destabilization of the thermohaline circulation
305    C        by atmospheric eddy transports.
306    C        J. Climate 7(12), 1870-1882
307    o Will need long integration testing.
308    checkpoint53b_pre
309    
310    o created pkg/mom_common in preparation for variable viscosity code
311    o renamed and split ini_mnc_io
312    o pkg/land: only liquid water can diffuse or run-off
313    o AIM using land: soil wetness availability account for snow
314    o added printMapIncludesZeros to EEPARMS namelist
315    
316    checkpoint53a_post
317    o restore TAMC compatiility for exf_constants.h
318      (no usage of _d in .h)
319    o Additional storing in KPP in an attempt to fix
320      TAMC problem with adjoint of KPP code.
321      (no success...)
322      Identical code works fine with TAF.
323    o Fixed verification/natl_box_adjoint experiments.
324      Initial conditions for Experiments 4 and 5 are now
325      set to "SEAICE_initialHEFF=0", which is more reasonable,
326      and hence gives results closer to that of Experiment 2.
327      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
328    
329    checkpoint53
330    o stable checkpoint with up to date adjoint
331      TLM tests only run for 1st grdchk at the moment. Its unclear if
332      this is a code problem or a problem with resetting code for g_
333      variables that is being autogenerated wrong.
334      Otherwise:
335       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
336       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
337         are both still in chaos following their security messes.
338    
339    checkpoint52n_post
340    o various build (mostly genmake2) changes including:
341      - ability to build/run more easily within Cygwin and MacOS X
342      - more complicated Makefiles with a stronger dependence on Gnu Make
343    o pkg/seaice modifications
344      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
345        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
346        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
347      - changed proxy for geostrophic velocity and updated
348        verification/lab_sea/results/* accordingly
349      - removed ADI dynamic solver from pkg/seaice
350      - replaced all occurrences of 1/CSTICE or 1/CSUICE
351        they caused a segmentation fault under certain circumstances
352      - removed unused field WATR
353    o bug fix in exf-package:
354      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
355         now reflect that.
356    o small fixes in the cal-package:
357      - set reference date to first of January for the 'model'-calendar
358      - failing of cal_CheckDate in cal_FullDate now actually results in a
359        warning
360    o small modifications in exf-package to increase flexibility:
361      - change climtempfreeze from a constant to a runtime parameter that
362        is specified in data.exf_clim (default = -1.9)
363      - introduce runtime parameter windstressmax (default = 2.0) that is
364        specified in data.exf
365    o fix in pkg/thsice:
366      - update Evap (Tsf changes) to be consistent with Latent heat flux
367      - maintain snow precipitation unchanged (even if Tsf >=0).
368     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
369    
370    checkpoint52m_post
371    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
372      this does not change any of the results, because myIter=0 in swfrac always
373      lead to jwtype=2 (the default anyway), but the call makes little sense
374      as a default
375    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
376    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
377      atmospheric model (AIM) to use it ; add a "slab ocean" component.
378    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
379    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
380    o extending useSingleCpuIO option to work with new exch2 I/O format
381      - old-style, missing-tile I/O is still accessible by defining CPP
382        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
383    o monitor package can write to NetCDF files and/or STDOUT
384    o fix re-definition bug in MNC_GRID_INIT_ALL()
385    o doc/api_reference added
386      - a framework for building an API Reference Manual using all
387        the "protex" comments embedded in the code
388      - see pkg/generic_advdiff, pkg/mnc for examples
389    o MNC:
390      - make myThid the last argument for all subroutines
391      - new default for the grid files: NO halos
392      - add useMNC and other run-time flags
393      - separate per-file-group handling of the unlimited dimension
394      - early initialization of MNC w/ flags read at the eeboot stage
395        and lookup tables set in initialize_fixed
396      - write all MNC output to a freshly-created directory
397    o thermodynamics sea-ice (thsice) is now tested with testreport.
398    o test exp. advect_cs: use the standard cs32 grid ; update output.
399    o Added functionality to grdchk:
400      pick global i,j,k position (or nearest wet) where to perform check.
401    
402    checkpoint52l_post
403    o new land formulation:
404      a) use ground enthalpy as prognostic variable to ensure exact
405         energy conservation.
406      b) account for water temperature and for latent heat of freezing
407         in all processes (rain, run-off, ground storage)
408      c) compute surface and ground temperature implicitly.
409    o aim_v23 modification for new land model:
410      a) Treat separately land / ocean / sea-ice surface fluxes
411         to allow implicit computation of land & sea-ice surface temp.
412      b) add snow precipitation.
413    checkpoint52l_pre
414    
415    o fix problem (when 1 tile is empty) in min/max monitor.
416    o fix bug in timeAve (u,vZetatave in common block)
417    o no restoring terms under ice for pkg/seaice
418    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
419    o bug fix for pkg/seaice pickups
420    o change MNC call locations and add coordinate attributes
421    o mask vorticity at the corner ; affects global_ocean.cs output
422    o fix ini_curvilinear_grid ; test CS experiments with mpi
423    o aim.5l_cs: modify sea-ice fraction input file ; update output
424    o exf: Adding simple range check routine for exf fields after read
425    
426    checkpoint52k_post
427    o removed top-level directory "diags"
428      - we migrated these functions to pkg/timeave a long time ago
429    o fixed bug introduced in pkg/monitor
430    o accuracy ctrlprec = 32 insuffient for gradient checks using
431      averaged fields (I/O via cost_averages)
432      -> use ctrl.h in active_file*.F to control I/O precision.
433    o paramter list of CALL ADTHE_MAIN_LOOP
434    o added initial do_the_model_io to ecco
435    o set all ...Freq to zero after cost_final
436      taveFreq, dumpFreq, pChkptFreq
437    o MAIN and ECCO differentiability restored
438    
439    checkpoint52j_post
440    o fix nchklev in tamc.h for global_ocean...
441    o Bringing flow and store directives up-to-date
442    o Really weird thing!
443      call do_the_model_io from the_main_loop with parameters
444      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
445      TAF places a faulty re-call of initialise_varia
446      after cost_final call which should not be there!
447    checkpoint52j_pre
448    
449    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
450      error messages
451    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
452    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
453      debug output
454    o modfied mdsio_writefield.F to handle non-global files under exch2
455    o update AIM Cubed-Sphere exp (aim.5l_cs):
456      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
457    o update AIM Equatorial Channel exp:
458      use standard aim_v23 pkg and change the SST fields to be more realistic.
459    o globalFile now works with exch2
460    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
461      mon_vort3.F to make exch2 friendly with >1 tile per cube face
462    o limit timeave output for hi-res integrations
463    
464    checkpoint52i_post
465    o removed CPP_EEOPTIONS.h from verification/*/code
466    o updated the tiling for global_ocean_pressure
467    checkpoint52i_pre
468    
469    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
470      the old pkg/aim).
471    
472    checkpoint52h_pre
473    o shortened offending lines in exch2_send_rx?.template
474    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
475    o genmake2: add build & execute test for NetCDF code
476    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
477      old grid files, moved CPP_EEMACROS.h to pkg/exch2
478    o added useSingleCPUIO flag to monitor.F and mon_out.F
479    o added temporary hack for sea-ice dynamics on the cube:
480      metric terms are ignored and it is assumed that
481      there is no sea-ice on cube faces 1, 2, 4, and 5.
482    
483    checkpoint52f_post
484    o added exch2 cube routines to pkg/exch2
485    o modified hs94.cs-32x32x5 to use it
486    o added new grid files to hs94.cs-32x32x5
487    checkpoint52f_pre
488    
489    checkpoint52e_post
490    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
491      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
492    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
493      to work with implicit vertical advection and AB ;
494    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
495    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
496     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
497    checkpoint52e_pre
498    
499    o fix bug in impldiff when Nr=1 or Nr=2.
500    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
501    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
502    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
503      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
504    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
505    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
506    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
507    
508    checkpoint52d_post
509    o re-tiled many expts to allow comparison in multi-processor mode
510      - updated output accordingly
511      - changed hs94.128x64x5 to use intial T from file rather than use the
512        random number generator
513    o add infrastructure in model routines for fizhi and gridalt packages
514    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
515    o changes to permit hi-res, cubed-sphere, configuration
516      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
517      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
518      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
519        of surface winds for the cube
520      (A verification experiment, based on global_ocean.cs32x15, but with
521       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
522       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
523       complete with example surface forcing files and matlab scripts to look
524       at the output and compare it with that of global_ocean.cs32x15.)
525    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
526       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
527       to conform to the common rule.
528    o check-in the first version of the coupler + interfaces for multi-components
529       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
530       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
531       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
532       - ocean and atmos. share the same horizontal grid (no interpolation).
533       - exchanges between component and coupler is done in forward_step
534    o new verification experiment, cpl_aim+ocn:
535       coupled ocean - AIM atmosphere on cs32 grid.
536    
537    checkpoint52d_pre
538    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
539    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
540    
541    checkpoint52c_post
542    o Fixing OPTIONS files for use of exf:
543      - ALLOW_ECCO not needed
544      - ECCO_CPPOPTIONS.h should not be included from
545        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
546        as has been the case in the past
547      - All cal/exf related options are currently set in
548        single header file. Should remain so until we
549        agree on a consistent new policy.
550    o Removed all CPP options for cal package.
551      cal has no more CPP options.
552    o modified STOREs in GAD_ADVECTION
553    o corrected key comp. for passkey
554    
555    checkpoint52b_post
556    o new version: "thsice" of thermodynamic sea-ice pkg:
557     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
558     - modify fluxes but do not change theta directly;
559     - light cleaning of bulk_force pkg (still needed with thsice).
560     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
561       + output_thsice.txt to test thsice & bulk_force pkgs.
562    o put back grid & coriolis monitor output.
563    checkpoint52b_pre
564    
565    o call "do_the_model_io" at the beginning (=> dump initial state)
566    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
567    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
568      (need info on NUMBER_OF_PTRACERS)
569    o missing PTRACERS headers in some routines
570    o default tamc.h in pkg/autodiff supposed to crash
571      to ensure proper customization
572    
573    checkpoint52a_post
574    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
575      - moved surfaceTendencyTice from pkg/seaice to main code
576      - subroutine FREEZE_SURFACE now limits only surface temperature
577        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
578        => new output.txt for global_ocean.cs32x15 & global_with_exf
579      - keep the old version of FREEZE for backward compatibility;
580        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
581      - corresponding modifs for TAF directives
582    o added surface flux output variables to TIMEAVE_STATVARS
583    o time-averaged output for pkg/ptracers
584    o fix problem with ECCO-related divided adjoint
585      snapshot file was missing some ad-variables,
586      but no warning issued by TAF
587    
588    checkpoint52a_pre
589    o some bug fixes for #undef REAL4_IS_SLOW
590    
591    checkpoint52 = ecco_c52_e35
592    o after testing adjoints of checkpoint51u_post
593    
594    checkpoint51u_post
595    o this is the post-merge tag of the ecco-branch
596      (needs another clean checkout and re-testing)
597    o various natl_box_adjoint configs and results
598      but no input fields
599    o obcs adjoint not yet merged!
600    o adding ECCO global 1x1 and 2x2 degree configs
601    o updated/extended some store directives for seaice
602    o pkg/ecco now containes ecco-specific part of cost function
603    o top level routines the_main_loop, forward_step
604      supersede those in model/src/
605      previous input data.cost now in data.ecco
606      (new namelist ecco_cost_nml)
607    o in ctrl/ cleaned some cross-dependencies and updated CPP options
608    
609    checkpoint51t_post
610    o this is the pre-merge tag of the ecco-branch
611    
612    checkpoint51s_post
613    o cleanup: removed various obsolete #define-s
614    o pkg/grdchk
615      - renamed 'ph-grd 3' to 'grad-res'
616      - merged from ecco-branch
617        (remaining bug fixes for obcs gradient checks)
618      - additional high-precision output for testreport
619        (grep for 'precision_grdchk_result')
620    
621    checkpoint51r_post
622    o cleaned up or removed CPP_OPTIONS.h files
623    o updated results for some of the tests to reflect the new
624      optfiles (-ieee: -O0 instead of -O3)
625    
626    checkpoint51q_post
627    o cd_code:
628      - moved cd_scheme.F -> cd_code_scheme.F
629      - separate read_checkpoint from cd_code_ini_vars.F
630      - separated cd_code part from write_checkpoint
631      - updated AD_SOURCE, generated .flow
632      - added CD_CODE_VARS.h to the_main_loop
633      - Moving cd_code specific store dir.s to pkg/cd_code
634    o ctrl package totally restructured
635      - pack/unpack now optional and decoupled from
636        xx_/adxx_ I/O
637      - ctrl_pack/unpack cleaned
638        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
639      - confined inclusion of AD_CONFIG.h to where necessary.
640    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
641    
642    checkpoint51p_post
643    o create initial cd_code package
644      - WARNING: the initialization of fields within packages
645        is broken because INI_FIELDS (where READ_CHECKPOINT is
646        called) is called *before* PACKAGES_INIT_VARIABLES.
647        This seems to be backwards since
648        1) its important to initially zero the entire field including
649           the "halo" region
650        2) zeroing needs to be done *before* reading pickup info
651           and the pickup call might or might not happen in any
652           particular run
653      - this needs an overhaul for R2
654    o cleanup verification/*/code/GMREDI_OPTIONS.h
655    o cleanup testreport
656    
657    checkpoint51o_post
658    o bringing AD-related verif's up to date with genmake2
659      - carbon/
660      - global_ocean.90x40x15/
661      - hs.94.1x64x5/
662      - (front_relax/ )
663    o (more) consistent directory structure for AD-related verif.'s
664    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
665    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
666    o bug fix in find_alpha.F for MDJWF:
667      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
668        change rho -> rho-rhoConst
669      - replace call find_rho to find_rhonum
670    o initialisation of rFlx extended to full array (required by TAF)
671      and shifted to thermodynamics
672    o removed PTRACERS.h in ptracers routine
673    o added surfacetendencyPtr to S/R parameter list pracers_forcing
674    o Correcting initialisations for fVerU, fVerV.
675    o helping TAF to recognize dependency on kUp for
676      fVerU, fVerV
677    o Replacing delZ by delR in pkg/ctrl/
678    checkpoint51o_pre
679    
680    o undid all of cp51 pending some cleanups and discussion
681    o added the [#include "AD_CONFIG.h"] statement to all files that need
682       it for adjoint/tl #defines
683     o re-worked the build logic in genmake2 to support AD_CONFIG.h
684     o removed tools/genmake since it no longer works
685    
686    checkpoint51n_post
687    o modifications to make FREEZE flux visible to pkg/kpp
688      - moved surfaceTendencyTice from pkg/seaice to main code
689      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
690      - subroutine FREEZE now limits only surface temperature
691        (this means new output.txt for global_ocean.90x40x15,
692         global_ocean.cs32x15, and global_with_exf)
693    o added surface flux output variables to TIMEAVE_STATVARS
694    
695    checkpoint51n_pre
696    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
697    o added [#include "AD_CONFIG.h"] to all files that use the following
698      defines:
699      - ALLOW_ADJOINT_RUN
700      - ALLOW_TANGENTLINEAR_RUN
701      - ALLOW_ECCO_OPTIMIZATION
702    
703    checkpoint51m_post
704    o incorporating changes to get TAMC/TAF working in genmake2
705      - added new TAMC/TAF targets to the Makefile
706      - various cleanups related to package handling
707      - these changes should have no impact on the forward model
708    
709    checkpoint51l_post
710    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
711     - faster algorithm for cal_addtime.F
712     - higher precision arithmetic, where needed
713     - pkg/exf *startdate variables changed from calendar date to
714       model integration time
715    
716    checkpoint51l_pre
717    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
718    o enable to apply restoring on S & T only in a latitude band.
719    o update output (external_forcing_surf modif. change truncation errors)
720       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
721    
722    checkpoint51k_post
723    o change default to: useNHMTerms=.FALSE.
724     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
725       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
726     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
727        exp1, ideal_2D_oce
728     - change data file of oceanic exp (leave the results unchanged for now)
729       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
730    o set gravitySign automatically according to the vertical coordinate used
731      (and change sign: back to "logical" value: +1 when R increases downward)
732    o added an include barrier to the default CPP_OPTIONS.h and
733      removed the #include "PACKAGES_CONFIG.h" from it
734    o fix a bug in mom_fluxform (from chk51j_post)
735    
736    checkpoint51j_post
737    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
738    o adjusted some flow directives (dynamics, thermodynamics)
739    o added cubed-sphere case to test cost function
740    o heckpoint_lev?_directives.h now include
741      pkg-specific directives, whenever those are enabled.
742    o Moving pkg-specific flow directives to corresponding pkg
743      Moving pkg-specific differentiation list to corresponding pkg
744      Moving pkg-specific checkpoint-lev storing to corresponding pkg
745      ---> conventions are
746           - pkg_ad.flow
747           - pkg_ad_diff.list
748           - pkg_ad_check_lev?_dir.h
749    
750    checkpoint51i_post
751    o merge of the branch-genmake2
752      - knowingly breaks the older genmake
753      - automatic generation of all ALLOW_${PKG_NAME} defines
754      - new testreport supersedes older testscript
755    o large number of package inclusion and header cleanups
756    checkpoint51i_pre
757    
758    o new output for adjoin of global ocean vector invariant
759    o fix for checkpoint of thermodynamic seaice and bulk_force
760    o Steph gchem various cleanups
761    
762    checkpoint 51h_pre
763    o fixed some single quotes
764    o modify gchem pkg to be more versatile
765    o modifications to clean up dic pkg
766    o add pkg/cfc
767    
768    checkpoint51g_post
769    o provide links for ARPACK and ADM*TLM
770    o start removing verification/vero/
771    o update AD-related stuff
772      (in particular some IF-statements in model/src/ routines)
773    o adding to verification/global_ocean.90x40x15/ adjoint of
774      vector invariant setup
775    
776    checkpoint51f_post
777    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
778    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
779      of tracer Green's fucntions for ocean inversion project.
780    
781    checkpoint51f_pre
782    o Added on-the-fly spatial interpolation capability
783        "USE_EXF_INTERPOLATION" to pkg/exf.
784      - This is a temporary Cartesian-grid hack until
785        the super-duper ESMF coupler becomes available.
786      - See verification/global_with_exf/README for usage example.
787      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
788        flags and modified pkg/seaice accordingly.
789    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
790        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
791        non-local transport term.
792    
793    checkpoint51e_post
794    o pkg/mom_vecinv:
795      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
796      - add time-ave diagnostic of vorticity advection.
797    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
798    o atmospheric geopotential: - include water vapor effect;
799                                - use p^kappa in p* scaling.
800    o land pkg: read initial state from files.
801    o AIM : add stratospheric drag in the upper level
802    
803    checkpoint51d_post
804    o change function ILNBLNK (=> last non-blank char.) to return zero
805      (instead of the string length) when the string. char is empty
806    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
807    o modif's to restore TAMC compatibility
808      - avoid "_d" constructs in PARAMETER declarations
809      - avoid interrupting lines by comment lines
810    o Use cluster local disks for purely local I/O
811      vs. globally visible disks needed for ctrl stuff
812      (merged from ecco-branch)
813      - new active_file_loc... and mdsio_..._loc routines
814      - affected packages: autodiff, ctrl, grdchk, mdsio
815    
816    checkpoint51c_post
817    o introducing integer flag debugLevel
818      - debLevZero: suppress all output
819      - debLevA: standard
820      - debLevB: equivalent to current debugMode=.TRUE.
821    o introducing pathname variable mdsioLocalDir for mdsio
822      that can be specified at runtime
823      (relevant for cluster I/O to local disk)
824    `
825    >>>checkpoint51b_post
826    adjoint of ptracers
827    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
828    o extended state in checkpoint_lev?, etc.
829    o alternative ctrl/cost with tr1 or ptracer
830    o new comlev1_bibj_ptracers
831    o new ptracers.flow
832    o made ptracers_forcing same as external_forcing_s
833    o added verification for adjoint with ptracers
834      - adm. grdchk fail so far
835      - tlm. grdchk OK
836      - checked tapelev/comlev recomputations: OK
837    <<<checkpoint51b_pre
838    
839    checkpoint51a_post
840    o added code for biogeochemistry package
841      - new pkgs: dic, gchem
842      - new subroutine in ptracers
843    o modify code for biogeo packages
844      - in model/src and pkg/ptracers
845    
846    checkpoint51
847    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
848      - autodiff, ctrl, exf, grdchk, seaice
849      kept separate packages
850      - cost, ecco, obcs
851    o updating verification/internal_wave, verification/lab_sea
852      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
853    
854    checkpoint50i_post
855    o Preparing next differentiable checkpoint and sync
856      of MAIN vs. ecco-branch
857      - 1st step: this one is differentiable
858      - 2nd step: next(! not this) checkpoint will have updated packages
859                  from ecco-branch)
860    
861    checkpoint50h_post
862    o new package "land": provide surface BC for AIM.
863    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
864    o AIM: use true log-P extrapolation for near surface temp (= as in
865        F.Molteni paper) ; update aim.5l_cs output.
866    o New variable in PARM03 for more flexible pickups
867    o somewhat cleaned package initialisation sequence for
868      ctrl/ cost/ ecco/ in packages_... routines
869    
870    checkpoint50g_post
871    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
872      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
873      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
874        made the default because of faster convergence than ADI
875    
876    checkpoint50f_post
877    o exf totally restructured
878      - replaced all exf_set_ routines by one generic exf_set_gen.F
879        and made sure it's still differentiable
880      - split exf_getffields.F into new exf_bulkformulae.F
881      - exf_inscal_/exf_outscal_ suffixes consistent with field names
882      - updated adjoint/makefile and relevant verif. accordingly
883    
884    checkpoint50f_pre
885     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
886          + change Evap over land. (update aim.5l_cs output)
887     o added missing .cvsignores and made uniform across expts
888     o changed configuration of tidal_basin_2d expt
889     o added pkg/debug functions for tracing code in fatal crashes
890     o tidied pkg/monitor to use MONITOR_OPTIONS.h
891     o new fn in pkg/monitor to stop model if solution grows too big
892     o removed lots of single quotes from comments
893    
894    checkpoint50e_post
895    o make KPP work with PTRACERS
896     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
897       nearly a copy of kpp_transport_s
898     - there is no analogue to SurfaceTendencyS, so I have to use
899       gPtr(of the surface layer) instead
900    o add a new platform SunFire+mpi (SunFire 15000) to genmake
901    checkpoint50e_pre
902    
903    checkpoint50d_post
904    o change kpp output from multiple-record state files to single-record state
905      files analogous to write_state.F
906    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
907      analogous to the cg2d-related output.
908    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
909      so that writing to internal file fn (with length 512) fails.
910    checkpoint50d_pre
911    
912    checkpoint50c_post
913    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
914    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
915    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
916    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
917    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
918    
919    checkpoint50c_pre
920    Merging from release1_p13:
921    o bug fix for pkg/seaice dynamic solver
922    o Added SEAICE_initialHEFF to pkg/seaice
923    
924    checkpoint50b_post
925    o store u*,v* in gU,V instead of in guNm1,gvNm1
926    o in order to put the momForcing out of the Adams-Bashforth:
927      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
928      to timestep.F
929    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
930    o re-generate output for highly sensitive test-exp:
931       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
932    
933    checkpoint50b_pre
934    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
935    o corrected CPP option mismatch in exf_Bulk... functions for case
936      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
937    
938    checkpoint50a_post
939    o Bug fix for merging between c50 and KPP.
940      ikey was passed from thermodynamics to kpp_calc via
941      common block rather than being recomputed in kpp_calc,
942      in contradiction with new key itdkey.
943      New key ikppkey created, and tamc.h headers updated.
944    
945    checkpoint50
946    - 2nd step of merge with ecco-branch:
947      merge changes in ecco-branch back into main trunk
948    - bug fix in find_alpha
949    - more storing in gmredi_calc_tensor.F, kpp_routines.F
950    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
951    - merged some sliced AD support routines
952    
953    checkpoint49
954    merged from ecco-branch:
955    o exf:
956      - Enable initialisation of forcing fields to constant
957        (runtime) values.
958      - in exf_getffields.F
959        Reduce i-/j-loop to interior domain, discarding overlaps.
960        That also fixes wrong TAF-key computations for key_1, key_2
961        with bulf formulae.
962      - exf_init.F modify #ifdef for exf_init_evap
963      - exf_getffieldrec.F, ctrl_getrec.F
964        The following INT-usages are not safe:
965          fldsecs  = int(fldsecs/fldperiod)*fldperiod
966          fldcount = int(fldsecs/fldperiod) + 1
967        and were modified.
968    o autodiff: checkpoint_lev...
969      - updated storing for bulk formulae (some arrays were missing)
970      - added state for seaice package
971      - synchronized with main branch
972    o DIVA:
973      Modif.s in
974      - the_main_loop.F
975      - the_model_main.F
976      and added cost_final_restore.F cost_final_store.F
977      o With these changes, it is possible to fully separate
978        the first forward run to compute the cost function (mdthe_main_loop)
979        and adjoint runs over individual DIVA intervals (adthe_main_loop)
980        into separate model executions.
981        This enables better tuning of DIVA to given queue sizes.
982      o Loss of cost function value in consecutive DIVA runs is
983        fixed by storing to 'costfinal' file.
984      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
985        beginning/end of adjoint integration is accounted for.
986      The current changes apply to TAF-1.4.26.
987      TAF has one remaining bug, requiring one manual change
988      (see MITgcm manual).
989    o cal: synchronized between MAIN and ecco-branch
990    
991    checkpoint48i_post
992    o Changes to restore differentiability of code w.r.t. previous tag
993      (mostly adding new routines to make list and replacing
994      pressure by totPhiHyd).
995    o Updated and merged grdchk package
996      - has both ADM and TLM checks
997      - works for single- and multi-proc.
998      - output cleaned
999      - worked successfully for parallel DIVA
1000    o genmake:
1001      - Adding -platform=SP4
1002      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1003    o Modif. for DIVA:
1004      ctrl_unpack should not be called in intermediate DIVA interval.
1005      (similar thing would apply for active files such as
1006      tbar, sbar, psbar, which should not be reinitialised;
1007      only relevant for ecco-branch)
1008    
1009    checkpoint48h_post
1010    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1011    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1012    o Added SEAICE_initialHEFF to pkg/seaice
1013    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1014    
1015    checkpoint48g_post
1016    --- EOS:
1017    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1018      store total Potential in totPhyHyd for diagnostics & EOS.
1019    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1020    --- Pressure/geopotential gradient:
1021    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1022    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1023      ( changes results of global_ocean_pressure )
1024    o NLFS + z-coord.: add eta*Rho' contribution.
1025    o accurate phiHyd when using interface-W at the middle between 2 centers
1026     ( changes results of ideal_2D_oce )
1027    o includes r* 2nd term in potential gradient.
1028    
1029    checkpoint48f_post
1030    Merging from release1_p12:
1031    o Modifications for using pkg/exf with pkg/seaice
1032      - improved description of the various forcing configurations
1033      - added basic radiation bulk formulae to pkg/exf
1034      - units/sign fix for evap computation in exf_getffields.F
1035      - updated verification/global_with_exf/results/output.txt
1036    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1037      (SBO) core products, including oceanic mass, center-of-mass,
1038      angular, and bottom pressure (see pkg/sbo/README.sbo).
1039    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1040      to avoid negative values in shallow regions.
1041      - updated verification/natl_box/results/output.txt
1042      - updated verification/lab_sea/results/output.txt
1043    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1044    o Added useSingleCpuIO option (see PARAMS.h).
1045    o Updated useSingleCpuIO option in mdsio_writefield.F to
1046      work with multi-field files, e.g., for single-file pickup.
1047    o pkg/seaice:
1048      - bug fix in growth.F: QNET for no shortwave case
1049      - added HeffFile for specifying initial sea-ice thickness
1050      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1051    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1052      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1053    o pkg/seaice:
1054      - adjoint-friendly modifications
1055      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1056    
1057    checkpoint48e_post
1058    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1059    o dynamics: change definition of computational domain & adapt mom_fluxform
1060      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1061    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1062        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1063        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1064        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1065        inverted_barometer solid-body.cs-32x32x1
1066      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1067    
1068    checkpoint48d_post
1069    o in preparation for r*:
1070     a) use pre-computed gradient of hydrostatic potential:
1071        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1072     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1073        => affects results of glob_oce_pressure (different truncation error)  
1074      update output.txt of ideal_2D_oce & global_ocean_pressure
1075    
1076    checkpoint48d_pre
1077    o in preparation for r*:
1078      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1079      pass the 2 comp. of the grad. as arguments to momentum S/R.
1080      but for the moment, only used if it does not change the results.
1081    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1082    
1083    checkpoint48c_post
1084    Modifications in treatment of initial flux forcing controls
1085    to avoid extra storing of flux fields.
1086    
1087    checkpoint48c_pre
1088    o Added tidal_basin_2d experiment (currently 1D!)
1089    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1090    
1091    checkpoint48b_post
1092    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1093     (modification to pressure gradient not yet implemented)
1094    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1095      (for U & V) that are used for vertical advection of momentum.
1096    
1097    checkpoint48a_post
1098    o In preparation for r*, use temp. array to compute vertical transport
1099       in flux-form momentum pkg. => change results of few test-exp.
1100      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1101                        lab_sea, natl_box & plume_on_slope
1102    
1103    checkpoint48
1104    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1105    
1106    checkpoint47j_post
1107    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1108    o moved adexch from forward_step to addummy_in_stepping
1109    o added exch in ctrl_map_...
1110    o aveFreq.=0. at end of cost_final to avoid overwrite in
1111      reverse checkpointing loop
1112    o Yet more changes in gmredi:
1113      * adgmredi_calc_tensor
1114        avoiding all recomputation of gmredi_slope_limit
1115      * adgmredi_x/y/rtransport
1116        added flag for excessive storing to avoid recomp. of
1117        u/v/rtans, dTdx/y/z
1118        -> this is not really necessary and very memory-consuming
1119      * adgmredi_slope_psi:
1120        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1121      * gmredi_slope_limit
1122        re-activated full calculation of taperfct for case 'ac02'
1123    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1124    
1125    checkpoint47i_post
1126    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1127    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1128      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1129    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1130    o gmredi: fix few bugs.
1131    
1132    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1133    This will be a good checkpoint to plug into the ecco-branch.
1134    o few modif.'s to get latest version adjointed
1135      (mainly kick out code in ini_linear_phisurf)
1136    o modif's to run adjoint with exactConserv
1137    o case GM_BOLUS_ADVEC should be cleaned
1138      S/R gmredi_slope_psi should be cleaned
1139    o verification/carbon now has exactConserv=.TRUE.
1140    
1141    checkpoint47g_post
1142    o time-average AIM output: becomes independent from statvars time-average
1143      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1144    o After TAF bug fix:
1145      Tested adjoint of gmredi package.
1146      Tests were done with checkpoint47 rather than with latest
1147      checkpoint47f_post since the latter is broken for the adjoint
1148      verification/carbon/ contains both ADM and TLM gradient checks.
1149    Here they are, before they get changed/lost/stolen.
1150    Mostly modif.'s to fix numerical sensitivities.
1151    Gradient checks OK for
1152    - GM_taper_scheme:
1153      * clipping
1154      * ac02
1155      * linear
1156      * glw91
1157      * dm95
1158      * ldd97
1159    - GMREDI_OPTIONS:
1160      * GM_VISBECK_VARIABLE_K
1161      * GM_NON_UNITY_DIAGONAL
1162      * GM_EXTRA_DIAGONAL
1163      * GM_BOLUS_ADVEC
1164    in conjunction with data.gmredi parameters to be checked in
1165    in a few minutes under verification/carbon/code/
1166    
1167    checkpoint47f_post
1168    Merging from release1_p10:
1169    o modifications for using pkg/exf with pkg/seaice
1170      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1171        and SEAICE_EXTERNAL_FLUXES
1172      - pkg/exf CPP options EXF_READ_EVAP and
1173        EXF_NO_BULK_COMPUTATIONS
1174      - usage examples are Experiments 8 and 9 in
1175        verification/lab_sea/README
1176      - verification/lab_sea default experiment now uses
1177        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1178    
1179    checkpoint47e_post
1180    o created a tag prior to creating a branch
1181    
1182    checkpoint47d_post
1183    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1184      at the bottom boundary had an erroneous half slip boundary condition
1185    o added bottom drag and no slip boundary condition capabilities to
1186      oceanic pressure coordinates code
1187    o added new verification experiment global_ocean_pressure, this experiment is
1188      also described in the tutorial section of the manual
1189    checkpoint47d_pre
1190    
1191    checkpoint47c_post
1192    o Added a verification experiment for a global cubed-sphere ocean run
1193      -  verification/global_ocean.cubed32x32x30
1194      -  uses pkg/therm_seaice and pkg/bulk_forcing
1195    
1196    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1197    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1198      when using P-coordinate; only implemented for atmospheric config.
1199    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1200      NOTES: requires option NONLIN_FRSURF to be "#define".
1201    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1202    
1203    checkpoint47b_post
1204    Merging from release1_p9:
1205    o pkg/seaice
1206      - removed GOTO's and added taf directives
1207      - double precision constants to reduce the g77 (Linux)
1208        to F77 (SGI) differences reported in release1_p8
1209    o tools/genmake
1210      - added SGI options
1211    o verification/testscript
1212      - updated to that of checkpoint47a_post
1213    o verification/global_ocean.90x40x15/input/eedata
1214      - modified for SGI f77 compatibility
1215    o verification/lab_sea
1216      - added description of sea-ice model
1217      - added missing matlab routines
1218      - added test of thermodynamics parallelization
1219    
1220    checkpoint47a_post
1221    o new pkg: aim_v23
1222     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1223       for now, keep the same surface forcing as before.
1224     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1225     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1226     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1227    o add diagnostic of surface correction term in monitor output
1228    
1229    o bulk_force and therm_seaice
1230    - Two packages:  bulk_force (Bulk forcing)
1231      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1232    - Earlier integration from Stephaine Dutkiewicz
1233      and Patrick Heimbach.
1234    - Two ifdef statements for compile time,
1235       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1236    
1237    checkpoint47
1238    differentiable version of checkpoint46n_post
1239    o bug fix in quasihydrostaticterms
1240    o * "clean" adjoint code (in terms of extensive recomputations)
1241        can now be obtained for all GMREDI options (i.e. for
1242        - GM_VISBECK_VARIABLE_K
1243        - GM_NON_UNITY_DIAGONAL
1244        - GM_EXTRA_DIAGONAL
1245        - GM_BOLUS_ADVEC )
1246      * However, wrong gradient check problem remains unsolved.
1247      * New CPP options have been introduced for different
1248        tapering schemes
1249    o external_fields_load now part of differentiation list
1250    o pressure needs multiple storing;
1251      would be nice to have store_pressure at beginning or
1252      end of forward_step, e.g. by having phiHyd global (5-dim.)
1253      (NB: pressure is needed for certain cases in find_rho,
1254      which is also invoked through convective_adjustment).
1255    o recomputations in find_rho for cases
1256     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1257    o #define ATMOSPHERIC_LOADING should be differentiable
1258    o ini_forcing shifted to begining of initialise_varia
1259    o Incorporating QNVS line search routines into MITgcm
1260      (this is separate code, and therefore not under pkg)
1261      lsopt/, optim/
1262    o Updated verification/carbon/
1263      - #define GM_VISBECK_VARIABLE_K
1264      - GM_taper_scheme    = 'ldd97'    
1265    
1266    checkpoint46n_post
1267    Merging from release1_p8:
1268    o verification/natl_box:
1269      updating new external_fields_load routine
1270    o New package: pkg/seaice
1271      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1272      The sea-ice code is based on Hibler (1979-1980).
1273      Two sea-ice dynamic solvers, ADI and LSR, are included.
1274      In addition to computing prognostic sea-ice variables and diagnosing
1275      the forcing/external data fields that drive the ocean model,
1276      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1277      The implied surface heat flux is then stored in variable
1278      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1279      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1280      non-local transport term.  Because this call precedes model
1281      thermodynamics, temperature under sea-ice may not be "exactly" at
1282      the freezing point by the time theta is dumped or time-averaged.
1283      N.B.: fairly large differences in accuracy occur across
1284            different platforms/compilers; comparison between
1285            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1286            generated output gives:
1287       T           S           U           V
1288      C D M    c        m  s        m  s        m  s        m  s
1289      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1290      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1291      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1292    
1293      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1294    o GAD:
1295      - generated new common blocks to account for call of
1296        same gad routines with differing traceridentities
1297        (needed to modify tracerIdentity indices in GAD.h)
1298      - generated separate common blocks for case useCubedSphereExchange
1299        (Department of Futurology)
1300      - parameter lists to gmredi_?transport: added tracerIdentity
1301      - added new key indices to tamc.h
1302    o external_fields_load:
1303      - added this routine to TAF list
1304      - needed to make some common blocks global and additional storing
1305        along the same lines as exf package (checkpoint_lev?_directives.h)
1306    o exf:
1307      updated external forcing package
1308      - bug fixes carried over from ecco-branch
1309        (missing OBCS_OPTIONS.h in two routines)
1310      - enable easy to use "no forcing".
1311      - added exf I/O for atmospheric loading
1312      - added exf I/O for runoff data
1313      - transfered scaling between exf <-> MITgcm to exf namelist
1314    o Adding new verification experiment global_with_exf.
1315      This verification experiment is almost identical to the
1316      global_ocean.90x40x15 experiment, except that it uses
1317      the exf (and cal) package instead of the
1318      external_fields_load routine (cf README file).
1319    
1320    checkpoint46m_post
1321    o modified testscript to return -- when there are no lines of "%MON" output
1322    o added new flag "quasiHydrostatic" for QH mode
1323      and new routine quasihydrostaticterms()
1324    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1325      New routine: mom_u_coriolis_nh()
1326    o fixed sign of non-hydrostatic metric terms in u and v equations.
1327      Depend on correct sign of gravitySign.
1328    o added work.pc* to .cvsignore in aim directories using ifc
1329    o introduced flag for controllin non-hydrostatic metric terms
1330    o removed gravitySign from PARM04
1331    o switched to g77/ifc from pgf77 in aim experiments
1332    
1333    checkpoint46l_post
1334    o made convective adjustment work with pressure coordinates:
1335     - changed the direction of k-loop in convective_adjustment.F for the
1336       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1337     - adjusted the reference pressure k-index in convective_adjustment.F
1338     - adjusted the convection condition in convect.F (in analogy to
1339       calc_ivdc.F)
1340     - convective_adjustment no longer computes anything on the halos
1341     - removed the warnings about negative salinity from find_rho.F and
1342       find_alpha.F; instead the new routine look_for_neg_salinity, called
1343       at the beginning of find_rho, find_alpha, and find_beta, does a
1344       check of the entire slice, if CPP-option
1345       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1346    checkpoint46l_pre
1347    
1348    checkpoint46k_post
1349    o fixed the verification/global_ocean.90x40x15 experiment:
1350     - new bathymetry (the world according to A., JMC, and M.)
1351     - new initial fields and forcing fields (*.bin files)
1352     - new POLY3.COEFFS (for the next release one should switch to a full
1353       equation of state: JMD95P or MDJWF)
1354     - fixed several errors and redundancies in the data file
1355     - experiment uses looped cells
1356     - added matlab directory with diagnostic scripts for plotting of output
1357    
1358    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1359     - read AIM physics parameters from a file (data.aimphys)
1360     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1361    
1362    checkpoint46j_post
1363    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1364    o move wVel computation at the end of the time step, in S/R integr_continuity
1365    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1366    o update timeave pkg for wVel diagnostic.
1367    checkpoint46j_pre
1368    
1369    checkpoint46i_post
1370    o Clean up AIM package (and keep the results unchanged):
1371      include CPP_OPTION and use IMPLICT NONE in all routines ;
1372      declare all the variables _RL ; use _d 0 for all numerical constants.
1373      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1374    
1375    checkpoint46h_post
1376    o cleaned up the use of rhoNil and rhoConst.
1377      - rhoNil should only appear in the LINEAR equation of state, everywhere
1378        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1379        and the dynamical equations are all divided by rhoConst
1380    o introduced new parameter rhoConstFresh, a reference density of fresh
1381      water, to remove the fresh water flux's dependence on rhoNil. The default
1382      value is 999.8 kg/m^3
1383    o cleanup up external_forcing.F and external_forcing_surf.F
1384      - can now be used by both OCEANIC and OCEANICP
1385    checkpoint46h_pre
1386    
1387     Added code to convert surface volume flux (fresh water) into
1388     a mass flux when using P coordinates in the ocean (OCEANICP).
1389     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1390    
1391    checkpoint46g_post
1392    o Include a new diagnostic variable phiHydLow for the ocean model
1393      - in z-coordinates, it is the bottom pressure anomaly
1394      - in p-coordinates, it is the sea surface elevation
1395      - in both cases, these variable have global drift, reflecting the mass
1396        drift in z-coordinates and the volume drift in p-coordinates
1397      - included time averaging for phiHydLow, be aware of the drift!
1398    o depth-dependent computation of Bo_surf for pressure coordinates
1399      in the ocean (buoyancyRelation='OCEANICP')
1400      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1401        Theta, Salinity, and Pressure in the parameter list. This routine is
1402        presently contained in find_rho.F. This routine does not give the
1403        correct density for 'POLY3', which would be a z-dependent reference
1404        density.
1405    o cleaned up find_rho
1406      - removed obsolete 'eqn' from the parameter list.
1407    o added two new verification experiments: gop and goz
1408      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1409    checkpoint46g_pre
1410    
1411    checkpoint46f_post
1412    o Enable tangent linear (forward mode) gradient checks:
1413      - extended active file handling to g_... files
1414      - added TANGENT_SIMULATION to theSimulationMode
1415      - extended grdchk package accordingly
1416    o added tangent linear setup in verification/carbon/code_ftl
1417    o added adjoint setup in verification/front_relax/code_ad
1418    
1419    checkpoint46e_post
1420    o Added new equation of state -> MDJWF
1421      - EOS of McDougall et al., 2002, JAOT, submitted
1422      - caveat: the equation of state is only valid for a smaller (more
1423        realistic?) range of values than JMD95P/Z and UNESCO
1424      - added masks to the calculation of pressure in store_pressure
1425      - added more check values for density in check_eos (ini_eos.F), some of
1426        the old check values are out of the range of the MDJWF-eos, so don't
1427        expect perfect matches for those
1428    checkpoint46e_pre
1429    
1430    checkpoint46d_post
1431    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1432      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1433      case of pressure coordinates. eosType='JMD95Z' in
1434      combination with buoyancyRelation='OCEANICP' now causes an error.
1435    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1436      in find_alpha/beta.
1437    checkpoint46d_pre
1438    
1439    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1440      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1441    
1442    checkpoint46c_post
1443    o Changes necessary for ocean in p-coordinates
1444     -  Added new buoyancy relation = 'OCEANICP'
1445     -  Added new parameters = gravitySign (this used to be contained inside
1446        the factor dRdZ which I added when we first switched to R coordinates).
1447     X GM/Redi is not compatible (yet)
1448     X bottom drag and no-slip need to be debugged.
1449    checkpoint46c_pre
1450    
1451    checkpoint46b_post
1452    o Added new equation of state -> JMD95Z and JMD95P
1453      - EOS of Jackett and McDougall, 1995, JAOT
1454      - moved all EOS parameters into EOS.h
1455      - new routines ini_eos.F, store_pressure.F
1456    o Added UNESCO EOS, but not recommended because it requires
1457      in-situ temperature (see JMD95)
1458    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1459      unesco.f to be used with POLY3
1460    checkpoint46b_pre
1461    
1462    checkpoint46a_post
1463    o Added (atmospheric) pressure loading
1464      - new field in FFIELDS.h, etc...
1465      - new cpp flag ATMOSPHERIC_LOADING
1466    o Changed hFacC to _hFacC in calc_phi_hyd.F
1467    o Added SHORTWAVE_HEATING to some files for consistency
1468    checkpoint46a_pre
1469    
1470    checkpoint46
1471    further merges from release1_p5
1472    o new ctrl package
1473      - adopted from ECCO environment to enable optimization
1474      - added Eliassen Palm fluxes to controls
1475    o added Eliassen Palm flux controls to gradient check package
1476    o cost package
1477      - Compatible with new ctrl package
1478      - added Eliassen Palm cost hooks
1479      - modif's of existing cost functions
1480    o Adjoint-related bug fixes in kpp:
1481      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1482      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1483    o autodiff package
1484      - flow directives:
1485        + new for S/R do_the_model_io
1486        + enhanced for S/R checkpoint
1487        + new gmredi.flow
1488      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1489        disable adcommon.h/g_common.h by default.
1490      - fixed problem for adjoint of global_max
1491    o modified verification/carbon/
1492    o New setup for adjoint of global_ocean
1493    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1494    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1495    o incorporated hooks for sponge layer code (external_forcing.F)
1496    
1497    checkpoint45d_post
1498    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1499    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1500      (affects plume_on_slope "cg2d" output)
1501    o add new parameter deltaTfreesurf for free-surface time stepping
1502    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1503    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1504    o change phiMin in exp1 (to agree with documentation)
1505    o add new flags:
1506     - T,S forcing inside/outside Adams-Bashforth
1507     - turn off temp,salt advection and/or forcing
1508     - for each tracer, define internal flag for multiDimAdvection & A-B
1509    o monitor: change definition of KE to check conservation of Energy
1510    
1511    checkpoint45c_post
1512    o Removed f90 comments ("!")
1513    o Modified initialisations to enable exf package for MITgcm
1514      (without invoking ECCO_PACKAGE).
1515    o modifications to gradient check package (Martin Losch)
1516      - enable centered differences
1517      - modified format of standard output
1518    
1519    checkpoint45b_post
1520    o cleaned exchange calls in cg2d
1521    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1522    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1523      to configure barotropic setup (Martin Losch)
1524    o moved some initialisations within bi,bj loop in dynamics
1525      (TAF flow dependency)
1526    o in initialise_varia, moved call packages_init_variables
1527      before convective_adjustment_init
1528      (corresponding adjustment of TAF tape initialisation).
1529    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1530    
1531    checkpoint45a_post
1532    o compute Rho over the whole domain (extend iMin,jMin indices)
1533    o specific exchange for X-slice domain (case Ny=1)
1534    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1535    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1536    
1537    checkpoint44h_post = checkpoint45
1538    o Fix to restore differentiability:
1539      place at which packages_init_variables is called in
1540      initialise_varia is crucial for reverse control flow.
1541    o modifications in GMRedi to enable stable adjoint
1542      (corresponding modif's in thermodynamics, dynamics)
1543    o added missing hook for sponge layer code in external_forcing
1544    o modified test cost functions
1545    o storing in gad_advection (plus removal of write(0,*)!
1546    o missing headers TR1.h added in convective_adjustment routines
1547    o errorMessageUnit set non-equal zero in eeboot
1548      (conflict on some platforms, e.g. IBM SP3)
1549    o modified carbon verif.
1550    
1551    checkpoint44h_pre
1552    o vertical grid option: allow to put the Interface at the middle between
1553      2 cell-centers ; replace delZ in pkg/kpp by drF.
1554    o GM Advective form: Tracers are advected using the residual transport (=
1555      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1556    
1557    checkpoint44g_post
1558    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1559      results) ; ifdef missing in thermodynamics.F
1560    
1561    checkpoint44f_pre,checkpoint44f_post
1562    o added PTRACERS package
1563      This allows an arbitrary number of passive tracers to be integrated
1564      forward simultaneously with the dynamicaly model.
1565      + Implemented so far:
1566        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1567        - I/O and checkpointing
1568        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1569      + Not implemented so far:
1570        - KPP
1571        - OBCS
1572      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1573        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1574        line in data.pkg.
1575      + This package is disabled by default since it increases storage.
1576    
1577    
1578    o testscript: added -cleanup option
1579    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1580                 b) enable to filter 2D fields.
1581    
1582    checkpoint44e_pre,post
1583    o re-wrote convective adjustment to use pre-calculated weights
1584      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1585      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1586      Original calls to convect() still in place.
1587    
1588    chkpt44d_pre,post
1589    o added missing EXCLUDE_MONITOR flags
1590    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1591      (incompatible typ in MIN/MAX expressions caused problems
1592      on IBM SP3)
1593    o in genmake added variable MAKEDEPEND
1594      plus resetting for case SunOS
1595    o added timer_stats.c routine for IBM SP3
1596    o removed variables in dynamics
1597    !!! I forgot to create tag chkpt44d_pre !!!
1598    !!! But chkpt44d_pre = chkpt44c_post    !!!
1599    
1600    o real fresh water flux implemented with non-linear free-surface.
1601    
1602    chkpt44c_pre,post
1603    o few fix (mask in shap_s2, EmPmR in external_field_load,
1604      USE_NATURAL_BCS in solve_for_P);
1605    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1606    
1607    checkpoint44b_pre/_post
1608    o merge of relevant stuff from the ecco-branch:
1609      - genmake: removed $S64 overwrite for case SunOS
1610      - pkg/exf: update and corrections for field swapping and obcs
1611      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1612                  harmonized between ECCO and MITgcm
1613      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1614                      updated checkpointing_lev... lists for obcs
1615      - model/src: minor changes in forward_step, plot_field
1616                   added directive for divided adjoint in the_main_loop
1617      - pkg/mdsio: added mdsio_gl_slice
1618    
1619    o check parameters & config (chkpt44a_pre,post)
1620    o OBC and NonLin_FrSurf.
1621    
1622    checkpoint44
1623    o fix bug in mom_vi_del2uv
1624    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1625    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1626    o update AIM experiments (NCEP input files)
1627    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1628    o added some stuff for AD
1629    
1630    checkpoint43
1631    o added two new advection tests
1632    o added global 4x4 degree ocean test
1633    o added test of H&S94 with free surface on cube
1634    o some final mods for gradient check, adjoint,...
1635    
1636    checkpoint42
1637      Fixed AD-related problems:
1638    o Store directives up-to-date with re-arranged Adams-Bashforth
1639      (mainly thermodynamics.F)
1640    o New store directives for multi-dim. advection schemes
1641      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1642      * new common block and key passkey
1643      (mainly gad_advection.F)
1644    o Modified store directives for split of dynamics/thermodynamics
1645      for the case ALLOW_KPP
1646    o Cleaned argument list for timestep_tracer.F
1647    
1648    checkpoint41
1649    o re-formatted/added comments in prologues of key subroutines
1650      to work with protex
1651    
1652    checkpoint40
1653    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1654    o added FLT (floats) package from Arne along with demo. experiment
1655    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1656      implementation of forward-in-time forcing terms
1657    o more mods for non-linear free-surface including new variable
1658    o modified multi-dim method to work on cube
1659    o bug fix in KPP (from DM)
1660    
1661    checkpoint40pre9
1662    o added DST advection schemes
1663    o fix MPI bug on SGI's
1664    o modifications for non-linear free-surface
1665    o fixed conditionals for fixed flow/passive tracer only mode
1666    o added tension/strain form of stress tensor
1667    o changes to commenting of arguments for TAF/TAMC
1668    o added/updated many matlab scripts
1669    o added multi-dimensional advection method for tracers
1670      
1671    checkpoint40pre8
1672    o new package rw/
1673      Added method for dumping intermediate local arrays:
1674      mdsio_writetile - same as mdsio_writefield except works from inside
1675                        bi,bj loop
1676      mdsio_writelocal - same as mdsio_writetile except works for local
1677                         arrays
1678      write_local_r? - higher-level wrapper for mdsio_writelocal
1679      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1680      Example given at end of mom_vecinv.F that dumps some local arrays.
1681    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1682      control flux-form versus vector invariant code.
1683      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1684      or genmake -DISABLE ...
1685    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1686      (additional storing is now needed for case vecinv;
1687      currently nothing implemented to switch this storing off
1688      in case fluxform is used since no CPP flag available).
1689    
1690    checkpoint40pre7
1691    o bug fix in dynamics.F
1692      calc_viscosity called before k=1,Nr loop.
1693    o added some #ifdef's ALLOW_PASSIVE_TRACER
1694    o cleaned initialisations in ctrl_map_ini
1695      related to TAF
1696    
1697    checkpoint40pre6
1698    o split dynamics into thermodynamics & dynamics
1699    o corresponding split of calc_diffusivity into
1700      calc_diffusivity, calc_viscosity
1701      (kpp_calc_diff, kpp_calc_visc).
1702    o Added diffkr, kapgm to control variables
1703    o bug fix in gmredi_slope_limit for ldd97
1704    
1705    checkpoint40pre5
1706    o proper initialization of Adams-Bashforth time stepping
1707      + uses forward step for very first step of model (iter=0)
1708    o re-generated *all* output since almost all output is modified by this
1709      change (sorry but we've been putting this one off for about 2 years)
1710      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1711        *not* regenerated since they are already out of date and I don't
1712        want to create the impression that they are suddenly working.
1713    o removed KAP stuff for DEC's
1714    o modified/added many .cvsignore files in */code and */input
1715    o added new expt "solid-body.cs-32x32x1"
1716      + this uses an alternative form of ini_curvilinear_grid.F which
1717        is not necessarily any better than the current one...
1718    
1719    checkpoint40pre4
1720    o added re-initialisations of utrans,vtrans,rtrans in
1721      calc_common_factors which are crucial for TAF.
1722    o extended iMin,jMin range for calc_common_factors,
1723      calc_diffusivity
1724    o added option ALLOW_PASSIVE_TRACER
1725    o a few minor updates and fixes
1726    
1727    checkpoint40pre3
1728    o created calc_gtr1.F for gad package
1729    o split the_main_loop and re-introduced forward_step
1730    o some recomputations of nIter0 for TAMC
1731    
1732    checkpoint40pre2
1733    o Updated to latest branch of AJA, JMC
1734    o Added gradient check package
1735    o Added routines for passive tracer handling
1736    o Added carbon sequestration sensitivity experiment
1737    
1738    checkpoint39
1739     o Modifications and fixes to support TAMC
1740       (mainly missing or wrong directives)
1741     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1742       in addummy_in_stepping
1743     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1744     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1745     o Included following packages:
1746       cal: calendar
1747       exf: external forcing
1748       ecco: essential routines to control use of cal, exf
1749             (NB: this is not the full ECCO environment)
1750     o disabled some packages by default in genmake
1751    
1752    checkpoint38
1753     o see notes_c37_adj.txt
1754     o corrected wrong layer index in external_forcing_t
1755     o replaced the_main_loop/forward_step by the_main_loop
1756     o removed forceoutput from write_state
1757       (replaced criteria for initial/final state)
1758     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1759    
1760    checkpoint37
1761     o mdsio.F routine split and packaged in pkg/mdsio
1762       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1763        used unless genmake -disable=mdsio)
1764     o allow a more precise surface-geopotential gradient for the atmosphere
1765       taking into account the change in space of Alpha (=1/rho) at the surface.
1766     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1767       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1768     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1769       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1770       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1771     o Time-Average diagnostics defined as a pseudo package "timeave".
1772     o pickup files : old pickup (before c35) did not work with new code (c35
1773       and after) unless activating 2 commented lines in initialise-varia.
1774     o Non-Hydrostatic pickup file Pb fixed.
1775     o bug with Rigid-lid version (since c35) fixed.  
1776    
1777    checkpoint36
1778     o implement Crank-Nickelson barotropic time-stepping
1779     o recover Time-Average diagnostics
1780     o fix Pb in checkpoint (PR#19)
1781     o AIM become a standard package ; clean unused CPP_kees
1782    
1783    checkpoint35
1784     o subtantial rewrite of dynamics.f
1785     o allows staggered time-stepping
1786     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1787     o added bottom drag (linear + quadratic)
1788    
1789    checkpoint34
1790     o Modified exchange routines for correct reverse simulation.
1791     o Added verification output to comply with bug fix in impldiff.F
1792       as of c33 (exp2, natl_box).
1793     o Corrected store directives in dynamics.F
1794     o Corrected array boundaries in impldiff.F
1795     o Corrected array dimensions in gmredi.
1796       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1797     o Added routine GLOBAL_SUM_INT to global_sum.F
1798     o Added mdsio_gl.F for ECCO purposes.
1799    
1800    checkpoint33
1801     o Fixed bug in lower BC in impldiff.F
1802     o Fixed confusion about units of forcing arrays in FFIELDS.h
1803       namely Fu,Fv,Qnet,Qsw,EmPmR:
1804       - Removed verification/natl_box/code/external_fields_scale.F
1805         (did not differ from that in model/src)
1806       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1807         (see FFIELDS.h for description)
1808       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1809         kpp_calc.F and kpp_transport_t.F
1810       - Removed model/src/external_fields_scale.F and calls to it
1811       - verification/natl_box uses flux data with "atmospheric" sign so
1812         a special version of external_fields_load.F is used to
1813         change the data as it's read in. This way, the arrays
1814         have the right units and signs at all times tha a user could
1815         possibly use them.
1816     o Corrected genmake to delete a temporary file during configuration
1817    
1818    checkpoint32
1819     o Scaling of forcing fields moved from external_forcing.F to
1820       external_fields_scale.F, called directly after loading fields.
1821     o Surface relaxation terms added to surface tendency fields in
1822       extra subroutine.
1823     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1824       fields.
1825     o Changes in GMRedi to comply with packaging structure.
1826     o Modifications and bug fixes in KPP package.
1827     o Verification experiment for KPP added (verification/nat_box/)
1828    
1829    checkpoint31
1830     o Packages interface brought in line with defined standard
1831       -> new routines packages_...F
1832       -> changes in initialise_fixed.F, initialise_varia.F
1833       -> enables initialisation interface for ECCO package
1834     o Rescaling of external forcing fields immediately after read
1835       (removed from external_forcing.F)
1836       -> new: surface_fields_scale.F
1837       -> affects ini_foorcing.F, external_fields_load.F
1838     o Computation of surface tendencies before tendency updates.
1839       -> new: external_forcing_surf.F
1840     o Change of variable names useGMRedi, useKPP, useECCO
1841     o Further changes in dynamics.F, impldiff.F for TAMC
1842     o Tested for experiments 0, 2, 4.
1843       - not yet tested for GMRedi.
1844       - not yet tested for KPP.
1845    
1846    checkpoint30
1847     o Updates for OBCs
1848     o New experiment for test OBCs (internal_wave)
1849     o New output.txt in verification/exp4/results/
1850     o Updates for KPP: calculation of viscosity corrected, new variables
1851       kpp_dumpFreq and kpp_taveFreq
1852     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1853       and entry for T90 in genmake
1854    
1855    checkpoint29
1856     o packaged KPP and GM/Redi
1857    
1858    checkpoint28
1859     o Corrected initialization of hFacMin for difference vertical coordinates
1860     o Modified calculation of partial cell thickness to more robust algorithm
1861     o config_summary.F: replaced write_1D_... by write_0D_...
1862       read_write.F: added subroutines write_0D_...
1863     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1864       included some initialisations required for TAMC.
1865     o routine calc_isoslopes: modified sqrt computation to make it
1866       differentiable for zero argument.
1867     o routines dynamics, impldiff:
1868       included store directives and tape key computations required for TAMC.
1869     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1870    
1871    checkpoint27
1872     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1873       formulation works properly with variable resolution.
1874     o restructured the calling tree between the_model_main() and dynamics()
1875     o split initialise() into initialise_fixed() and initialise_varia()
1876     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1877       in new routine ini_psurf()
1878    
1879    checkpoint26
1880     o moved some #ifdef in optional routines to encompass everything
1881       except the argument declarations. This was using up some memory.
1882     o fixed macros like _ADT to work with both versions of Linux cpp
1883     o cleaned up some unused and uninitialized variables
1884       (helps when debugging with strict compile options)
1885     o split up CPP_EEOPTIONS.h into options and macros
1886       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1887     o patch for 2 processor JAM mode
1888    
1889    checkpoint25
1890     o updates for OBCs and NH
1891     o dramatically reduced memory usage
1892     o added "JAM" routines for use on Artic network
1893     o parameterization of convection by implicit vertical diffusion
1894     o added a diagnostic of convective index
1895     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1896       (this is was partly for OBCs and NH but also in anticipation of
1897        an explicit free-surface option)
1898     o initial state input files for U and V
1899    
1900    checkpoint24
1901     o Removed some spurious "REAL"s
1902     o Updated KPP to latest version from JPL
1903     o Added a COS(latitude) in horizontal viscosity
1904    
1905    checkpoint23
1906     o Added del^4 diffusion for salt and temperature
1907     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1908    
1909    checkpoint22
1910     o Made many small changes: implicit none, format(i5), etc...
1911     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1912    
1913    checkpoint21
1914     o Introduced new I/O package that supports direct-access records (mdsio.F)
1915     o Split-up mid-level I/O routines
1916     o Updated input data for experiments 0,1,2,4 and 5
1917     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1918    
1919    checkpoint20
1920     o Tidied up open-boundaries some more
1921     o Added non-hydrostatic code
1922     o Fixed some input data
1923     o Modified MPI start-up to work in "coupled" context.
1924    
1925    checkpoint19
1926     o Tidied up directory structure for verification experiments.
1927     o Added new code for open boundaries.
1928     o Corrected advective terms near boundaries.
1929     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1930     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1931     o Split default parameters out of ini_parms.F into set_defaults.F.
1932    
1933    checkpoint18
1934     o Further changes for optional code generation with
1935       CPP - ugh!
1936    
1937    checkpoint17
1938     o Beginning to incorporating modularity
1939       for supporting atmos. and ocean configs.
1940     o Small changes for TAMC complinace
1941     o New ultra simple test case. Barotropic box
1942       configuration "exp0".
1943    
1944    checkpoint16
1945     o Minor changes to exchange routines to support
1946       accumulation in reverse mode. Adjoint of an
1947       assignment is an addition.
1948     o Changes to support compilation by TAMC (LR(1)
1949       syntax) and by g77 under Linux ( 72 character
1950       limit ).
1951    
1952    checkpoint15
1953     Rewrote exchange routines to allow
1954     o General tile <-> tile connectivity.
1955     o TAMC reverse mode flag ( is this really needed? )
1956     o Variable width overlap and exchange region widths.
1957     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1958       shmput/shmget, VIA, SYSV shmem and every other cool
1959       communication method.
1960    
1961    checkpoint14
1962     Consistent isomorphism chages made. These allow dynamical core
1963     to support both pressure and meters as a vertical coordinate.
1964    
1965    checkpoint13
1966     Release which corrects global_max problem and a couple
1967     of KGM time-averaging diagnostic errors. Also contains
1968     a double-gyre experiment setup as well as the baseline
1969     4 degree global template. The double gyre template is
1970     organised to allow it to be applied automatically to
1971     the baseline configuration.
1972    
1973    branch-point-rdot
1974     A few tidy-ups have been made bt the real point of this
1975     check-point (excuse the pun) is to allow a branch to be
1976     made for the purposes of adding the rDot alterations.
1977     I don't want to commit the rDot to the main-trunk until
1978     we've actually tested it...
1979    
1980    checkpoint12
1981     Tidy up and added generic genmake script (formerly
1982     configure script).
1983     Released to testers.
1984    
1985    checkpoint11
1986     Re-arranged initialise() and introduced ini_vertical_grid()
1987     and ini_masks_etc().
1988    
1989  checkpoint10  checkpoint10
1990   Introduced the configure script.   Introduced the configure script.

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