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revision 1.26 by adcroft, Mon Apr 10 14:41:52 2000 UTC revision 1.352 by heimbach, Wed Sep 22 21:31:35 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o obcs stuff
7      - new runtime flags useOBCSprescribe, useOBCSbalance
8      - re-arranged obcs_calc
9      - moved exf_getobcs to obcs_prescibe_read
10        obcs_prescibe_read is called after ORLANSKI stuff
11        and independent of it (executable can contain all).
12      - updated obcs_check
13    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
14      which simplifies the calls and passes the ifc check-bounds test
15    
16    checkpoint55b_post
17    o add a 2D scalar, Z location, exchange_2 routine.
18    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
19      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
20      affects advect_cs results (for the wrong reason): update output.txt
21    o use a more standard discretization for biharmonic viscosity ;
22     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
23      affects results of dome set-up: update output.txt
24    o fix gad_advection.F (CubedSphere part), back to version 1.23
25    o fix bug in mom_vi_del2uv.F (CubedSphere part).
26    
27    checkpoint55a_post
28    o merged code to
29      * prescribe/read time-dependent open boundaries
30        (works in conjunction with exf, cal)
31      * sponge layer code for open boundaries
32      * each boundary N/S/E/W now has its own CPP option
33        (healthy for the adjoint)
34    
35    checkpoint55
36    o up-to-date adjoint of previous breaks
37      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
38      - global_ocean_ebm: adjoint still needs fix (TLM ok)
39      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
40      - carbon: * remove tr1-related adjoint verification
41                * add ptracer as control variable
42    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
43      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
44    
45    checkpoint54f_post
46    o in verification/carbin/ remove experiment related to
47      ALLOW_PASSIVE_TRACER (array tr1 etc)
48      code_ad/ input_ad/ results_ad
49    
50    o add two new packages
51      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
52        + subject to optimization (memory)
53      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
54        + subject to reordering (many GOTOs in the original code)
55        + so far opps is called for every (i,j) point, and then operates in
56          the vertical; one may want to reorder the scheme in order operate in
57          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
58          fields)
59    o overhaul of IO so that we now have flags for MDSIO and/or MNC
60      - all verification tests compile and run with linux_ia32_g77
61      - defaults are compatible with current input files--nothing
62        should change if you were not previously using MNC
63      - MNC output has been added in numerous places (eg. timeave)
64        but there are still a few writes not yet do-able with MNC
65        (this is in progress)
66      - flags now allow for either/or/both use of MDSIO and MNC and
67        documentation will soon follow
68      - numerous small formatting cleanups for ProTeX
69    o add version info (via BUILD_INFO.h) to MNC and stdout
70    
71    checkpoint54e_post
72    o add two new packages
73      - pp81 (Packanowski and Philander, 1981), Richardson number and
74        stratification dependent mixing
75      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
76      - these scheme operate in a similar manner as KPP (without ghat, of
77        course), however there is only one diffusivity that is used for both
78        temperature and salinity (and passive tracers)ç
79    o add offline package
80    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
81      provided by Stephanie Dutkiewicz
82    o genmake2: add ability to search for C compilers and cleanup test output
83      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
84    
85    checkpoint54d_post
86    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
87    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
88      leading to additional shift by 5 days each year of integration
89       (i.e. leading to considerable offset over the years)
90    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
91    o start with no AB and no initial filtering (staggerTimeStep):
92      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
93    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
94      (external loading & cpl import/export stay in forward_step.F)
95    o update coupling interface to work with new staggerTimeStep
96    o change MDSIO ptracers_pickup.
97    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
98    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
99    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
100    
101    checkpoint54c_post
102    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
103      this affects (truncation error) output.txt of test-exp:
104       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
105    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
106    o change Qnet to always be the net heat flux, (+upward).
107      affects (truncation error) output of natl_box exp.: updated
108    o define the max number of passive tracers in PTRACERS_SIZE.h
109    o start to test mnc routinely in exp0
110    o add sea-ice loading (sIceLoad) as a new forcing field.
111    
112    checkpoint54b_post
113    o add testreport "-j JOBS" option for parallel builds (tested and pretty
114       impressive on Altix and Opteron systems)
115    o diagnostics can now write NetCDF files through the mnc package
116    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
117    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
118    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
119      affects (truncation error) output of lab_sea & natl_box exp.: updated
120    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
121    
122    checkpoint54a_post
123    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
124    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
125    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
126    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
127      + internal_wave (shift in writing cg2d_ini_res)
128    checkpoint54a_pre
129    
130    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
131      - modified verification/lab_sea and natl_box_adjoint accordingly
132    
133    checkpoint54
134    checkpoint53g_post
135    o prepare splitting of thermodynamics: store convect.counter in common block
136    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
137      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
138    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
139    o new parameter "nShapS": allow to treat differently S from T (nShapT)
140    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
141    o restore adjointability
142    
143    checkpoint53f_post
144    o modifications that affect AIM experiment results (update output.txt):
145      - no advection of S at top interface Nr (pkg/generic_advdiff)
146      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
147    o AIM pkg:
148      - include stability function into surf.Flux derivative relative to Tsurf
149      - calculate clear-sky radiation & surface temp. change (for diagnostics)
150    
151    checkpoint53e_post
152    o merged cylindrical coord configuration
153    o added rotating_tank experiment
154    checkpoint53e_pre
155    
156    checkpoint53d_post
157    o faulks upgraded: re-generate output.txt that have changed:
158       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
159    o Added Bryan and Lewis, 1979, vertical diffusivity profile
160    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
161    o added Sadourny discretization of Coriolis
162      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
163      - re-enabled use of omega3 (useAbsVorticity)
164    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
165      vector-invariant equations
166      - note: does *NOT* yet use same variable visc. for no-slip BC's.
167    o recoded the lateral boundary conditions for non-hydrostatic w, this time
168      hopefully without new bugs
169      - still to do: biharmonic friction for non-hydrostatic w
170    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
171    o regenerated output for global_ocean_ebm (using -ieee)
172    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
173      of mom_common/
174      - simple re-arrangement of instructions within computing loop
175    checkpoint53d_pre
176    
177    checkpoint53c_post
178    o new version of coupler for AIM+thSIce and Ocean models
179     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
180     - land: change Evaporation of snow
181     - aim with thSIce: fix bug in snow-precip.
182    o changes to calc_gw.F
183     - bug fix for w^2 term near the bottom boundary
184     - (hopefully) improve the lateral slip boundary condtions for use with
185        partial/looped cells
186      - because the bug fix changes two verification experiments anyway (exp5
187        and plume on slope), change the lateral boundary condition from half slip
188        to the value of no_slip_sides
189    o ebm package wasnt quite up to the parallel task. Fixed that.
190    o Adjoint of EBM package + verification
191      * TLM OK
192      * ADM not sufficient accuracy yet (needs further testing)
193    
194    checkpoint53b_post
195    o Commiting new energy balance model to repository
196      * package is pkg/ebm
197      * verif. is verification/global_ocean_ebm
198      * references are in ebm_driver.F
199    C      * X. Wang, P. Stone and J. Marotzke, 1999:
200    C        Global thermohaline circulation. Part I:
201    C        Sensitivity to atmospheric moisture transport.
202    C        J. Climate 12(1), 71-82
203    C      * X. Wang, P. Stone and J. Marotzke, 1999:
204    C        Global thermohaline circulation. Part II:
205    C        Sensitivity with interactive transport.
206    C        J. Climate 12(1), 83-91
207    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
208    C        Destabilization of the thermohaline circulation
209    C        by atmospheric eddy transports.
210    C        J. Climate 7(12), 1870-1882
211    o Will need long integration testing.
212    checkpoint53b_pre
213    
214    o created pkg/mom_common in preparation for variable viscosity code
215    o renamed and split ini_mnc_io
216    o pkg/land: only liquid water can diffuse or run-off
217    o AIM using land: soil wetness availability account for snow
218    o added printMapIncludesZeros to EEPARMS namelist
219    
220    checkpoint53a_post
221    o restore TAMC compatiility for exf_constants.h
222      (no usage of _d in .h)
223    o Additional storing in KPP in an attempt to fix
224      TAMC problem with adjoint of KPP code.
225      (no success...)
226      Identical code works fine with TAF.
227    o Fixed verification/natl_box_adjoint experiments.
228      Initial conditions for Experiments 4 and 5 are now
229      set to "SEAICE_initialHEFF=0", which is more reasonable,
230      and hence gives results closer to that of Experiment 2.
231      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
232    
233    checkpoint53
234    o stable checkpoint with up to date adjoint
235      TLM tests only run for 1st grdchk at the moment. Its unclear if
236      this is a code problem or a problem with resetting code for g_
237      variables that is being autogenerated wrong.
238      Otherwise:
239       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
240       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
241         are both still in chaos following their security messes.
242    
243    checkpoint52n_post
244    o various build (mostly genmake2) changes including:
245      - ability to build/run more easily within Cygwin and MacOS X
246      - more complicated Makefiles with a stronger dependence on Gnu Make
247    o pkg/seaice modifications
248      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
249        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
250        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
251      - changed proxy for geostrophic velocity and updated
252        verification/lab_sea/results/* accordingly
253      - removed ADI dynamic solver from pkg/seaice
254      - replaced all occurrences of 1/CSTICE or 1/CSUICE
255        they caused a segmentation fault under certain circumstances
256      - removed unused field WATR
257    o bug fix in exf-package:
258      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
259         now reflect that.
260    o small fixes in the cal-package:
261      - set reference date to first of January for the 'model'-calendar
262      - failing of cal_CheckDate in cal_FullDate now actually results in a
263        warning
264    o small modifications in exf-package to increase flexibility:
265      - change climtempfreeze from a constant to a runtime parameter that
266        is specified in data.exf_clim (default = -1.9)
267      - introduce runtime parameter windstressmax (default = 2.0) that is
268        specified in data.exf
269    o fix in pkg/thsice:
270      - update Evap (Tsf changes) to be consistent with Latent heat flux
271      - maintain snow precipitation unchanged (even if Tsf >=0).
272     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
273    
274    checkpoint52m_post
275    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
276      this does not change any of the results, because myIter=0 in swfrac always
277      lead to jwtype=2 (the default anyway), but the call makes little sense
278      as a default
279    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
280    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
281      atmospheric model (AIM) to use it ; add a "slab ocean" component.
282    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
283    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
284    o extending useSingleCpuIO option to work with new exch2 I/O format
285      - old-style, missing-tile I/O is still accessible by defining CPP
286        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
287    o monitor package can write to NetCDF files and/or STDOUT
288    o fix re-definition bug in MNC_GRID_INIT_ALL()
289    o doc/api_reference added
290      - a framework for building an API Reference Manual using all
291        the "protex" comments embedded in the code
292      - see pkg/generic_advdiff, pkg/mnc for examples
293    o MNC:
294      - make myThid the last argument for all subroutines
295      - new default for the grid files: NO halos
296      - add useMNC and other run-time flags
297      - separate per-file-group handling of the unlimited dimension
298      - early initialization of MNC w/ flags read at the eeboot stage
299        and lookup tables set in initialize_fixed
300      - write all MNC output to a freshly-created directory
301    o thermodynamics sea-ice (thsice) is now tested with testreport.
302    o test exp. advect_cs: use the standard cs32 grid ; update output.
303    o Added functionality to grdchk:
304      pick global i,j,k position (or nearest wet) where to perform check.
305    
306    checkpoint52l_post
307    o new land formulation:
308      a) use ground enthalpy as prognostic variable to ensure exact
309         energy conservation.
310      b) account for water temperature and for latent heat of freezing
311         in all processes (rain, run-off, ground storage)
312      c) compute surface and ground temperature implicitly.
313    o aim_v23 modification for new land model:
314      a) Treat separately land / ocean / sea-ice surface fluxes
315         to allow implicit computation of land & sea-ice surface temp.
316      b) add snow precipitation.
317    checkpoint52l_pre
318    
319    o fix problem (when 1 tile is empty) in min/max monitor.
320    o fix bug in timeAve (u,vZetatave in common block)
321    o no restoring terms under ice for pkg/seaice
322    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
323    o bug fix for pkg/seaice pickups
324    o change MNC call locations and add coordinate attributes
325    o mask vorticity at the corner ; affects global_ocean.cs output
326    o fix ini_curvilinear_grid ; test CS experiments with mpi
327    o aim.5l_cs: modify sea-ice fraction input file ; update output
328    o exf: Adding simple range check routine for exf fields after read
329    
330    checkpoint52k_post
331    o removed top-level directory "diags"
332      - we migrated these functions to pkg/timeave a long time ago
333    o fixed bug introduced in pkg/monitor
334    o accuracy ctrlprec = 32 insuffient for gradient checks using
335      averaged fields (I/O via cost_averages)
336      -> use ctrl.h in active_file*.F to control I/O precision.
337    o paramter list of CALL ADTHE_MAIN_LOOP
338    o added initial do_the_model_io to ecco
339    o set all ...Freq to zero after cost_final
340      taveFreq, dumpFreq, pChkptFreq
341    o MAIN and ECCO differentiability restored
342    
343    checkpoint52j_post
344    o fix nchklev in tamc.h for global_ocean...
345    o Bringing flow and store directives up-to-date
346    o Really weird thing!
347      call do_the_model_io from the_main_loop with parameters
348      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
349      TAF places a faulty re-call of initialise_varia
350      after cost_final call which should not be there!
351    checkpoint52j_pre
352    
353    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
354      error messages
355    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
356    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
357      debug output
358    o modfied mdsio_writefield.F to handle non-global files under exch2
359    o update AIM Cubed-Sphere exp (aim.5l_cs):
360      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
361    o update AIM Equatorial Channel exp:
362      use standard aim_v23 pkg and change the SST fields to be more realistic.
363    o globalFile now works with exch2
364    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
365      mon_vort3.F to make exch2 friendly with >1 tile per cube face
366    o limit timeave output for hi-res integrations
367    
368    checkpoint52i_post
369    o removed CPP_EEOPTIONS.h from verification/*/code
370    o updated the tiling for global_ocean_pressure
371    checkpoint52i_pre
372    
373    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
374      the old pkg/aim).
375    
376    checkpoint52h_pre
377    o shortened offending lines in exch2_send_rx?.template
378    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
379    o genmake2: add build & execute test for NetCDF code
380    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
381      old grid files, moved CPP_EEMACROS.h to pkg/exch2
382    o added useSingleCPUIO flag to monitor.F and mon_out.F
383    o added temporary hack for sea-ice dynamics on the cube:
384      metric terms are ignored and it is assumed that
385      there is no sea-ice on cube faces 1, 2, 4, and 5.
386    
387    checkpoint52f_post
388    o added exch2 cube routines to pkg/exch2
389    o modified hs94.cs-32x32x5 to use it
390    o added new grid files to hs94.cs-32x32x5
391    checkpoint52f_pre
392    
393    checkpoint52e_post
394    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
395      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
396    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
397      to work with implicit vertical advection and AB ;
398    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
399    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
400     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
401    checkpoint52e_pre
402    
403    o fix bug in impldiff when Nr=1 or Nr=2.
404    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
405    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
406    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
407      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
408    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
409    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
410    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
411    
412    checkpoint52d_post
413    o re-tiled many expts to allow comparison in multi-processor mode
414      - updated output accordingly
415      - changed hs94.128x64x5 to use intial T from file rather than use the
416        random number generator
417    o add infrastructure in model routines for fizhi and gridalt packages
418    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
419    o changes to permit hi-res, cubed-sphere, configuration
420      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
421      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
422      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
423        of surface winds for the cube
424      (A verification experiment, based on global_ocean.cs32x15, but with
425       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
426       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
427       complete with example surface forcing files and matlab scripts to look
428       at the output and compare it with that of global_ocean.cs32x15.)
429    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
430       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
431       to conform to the common rule.
432    o check-in the first version of the coupler + interfaces for multi-components
433       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
434       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
435       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
436       - ocean and atmos. share the same horizontal grid (no interpolation).
437       - exchanges between component and coupler is done in forward_step
438    o new verification experiment, cpl_aim+ocn:
439       coupled ocean - AIM atmosphere on cs32 grid.
440    
441    checkpoint52d_pre
442    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
443    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
444    
445    checkpoint52c_post
446    o Fixing OPTIONS files for use of exf:
447      - ALLOW_ECCO not needed
448      - ECCO_CPPOPTIONS.h should not be included from
449        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
450        as has been the case in the past
451      - All cal/exf related options are currently set in
452        single header file. Should remain so until we
453        agree on a consistent new policy.
454    o Removed all CPP options for cal package.
455      cal has no more CPP options.
456    o modified STOREs in GAD_ADVECTION
457    o corrected key comp. for passkey
458    
459    checkpoint52b_post
460    o new version: "thsice" of thermodynamic sea-ice pkg:
461     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
462     - modify fluxes but do not change theta directly;
463     - light cleaning of bulk_force pkg (still needed with thsice).
464     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
465       + output_thsice.txt to test thsice & bulk_force pkgs.
466    o put back grid & coriolis monitor output.
467    checkpoint52b_pre
468    
469    o call "do_the_model_io" at the beginning (=> dump initial state)
470    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
471    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
472      (need info on NUMBER_OF_PTRACERS)
473    o missing PTRACERS headers in some routines
474    o default tamc.h in pkg/autodiff supposed to crash
475      to ensure proper customization
476    
477    checkpoint52a_post
478    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
479      - moved surfaceTendencyTice from pkg/seaice to main code
480      - subroutine FREEZE_SURFACE now limits only surface temperature
481        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
482        => new output.txt for global_ocean.cs32x15 & global_with_exf
483      - keep the old version of FREEZE for backward compatibility;
484        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
485      - corresponding modifs for TAF directives
486    o added surface flux output variables to TIMEAVE_STATVARS
487    o time-averaged output for pkg/ptracers
488    o fix problem with ECCO-related divided adjoint
489      snapshot file was missing some ad-variables,
490      but no warning issued by TAF
491    
492    checkpoint52a_pre
493    o some bug fixes for #undef REAL4_IS_SLOW
494    
495    checkpoint52 = ecco_c52_e35
496    o after testing adjoints of checkpoint51u_post
497    
498    checkpoint51u_post
499    o this is the post-merge tag of the ecco-branch
500      (needs another clean checkout and re-testing)
501    o various natl_box_adjoint configs and results
502      but no input fields
503    o obcs adjoint not yet merged!
504    o adding ECCO global 1x1 and 2x2 degree configs
505    o updated/extended some store directives for seaice
506    o pkg/ecco now containes ecco-specific part of cost function
507    o top level routines the_main_loop, forward_step
508      supersede those in model/src/
509      previous input data.cost now in data.ecco
510      (new namelist ecco_cost_nml)
511    o in ctrl/ cleaned some cross-dependencies and updated CPP options
512    
513    checkpoint51t_post
514    o this is the pre-merge tag of the ecco-branch
515    
516    checkpoint51s_post
517    o cleanup: removed various obsolete #define-s
518    o pkg/grdchk
519      - renamed 'ph-grd 3' to 'grad-res'
520      - merged from ecco-branch
521        (remaining bug fixes for obcs gradient checks)
522      - additional high-precision output for testreport
523        (grep for 'precision_grdchk_result')
524    
525    checkpoint51r_post
526    o cleaned up or removed CPP_OPTIONS.h files
527    o updated results for some of the tests to reflect the new
528      optfiles (-ieee: -O0 instead of -O3)
529    
530    checkpoint51q_post
531    o cd_code:
532      - moved cd_scheme.F -> cd_code_scheme.F
533      - separate read_checkpoint from cd_code_ini_vars.F
534      - separated cd_code part from write_checkpoint
535      - updated AD_SOURCE, generated .flow
536      - added CD_CODE_VARS.h to the_main_loop
537      - Moving cd_code specific store dir.s to pkg/cd_code
538    o ctrl package totally restructured
539      - pack/unpack now optional and decoupled from
540        xx_/adxx_ I/O
541      - ctrl_pack/unpack cleaned
542        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
543      - confined inclusion of AD_CONFIG.h to where necessary.
544    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
545    
546    checkpoint51p_post
547    o create initial cd_code package
548      - WARNING: the initialization of fields within packages
549        is broken because INI_FIELDS (where READ_CHECKPOINT is
550        called) is called *before* PACKAGES_INIT_VARIABLES.
551        This seems to be backwards since
552        1) its important to initially zero the entire field including
553           the "halo" region
554        2) zeroing needs to be done *before* reading pickup info
555           and the pickup call might or might not happen in any
556           particular run
557      - this needs an overhaul for R2
558    o cleanup verification/*/code/GMREDI_OPTIONS.h
559    o cleanup testreport
560    
561    checkpoint51o_post
562    o bringing AD-related verif's up to date with genmake2
563      - carbon/
564      - global_ocean.90x40x15/
565      - hs.94.1x64x5/
566      - (front_relax/ )
567    o (more) consistent directory structure for AD-related verif.'s
568    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
569    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
570    o bug fix in find_alpha.F for MDJWF:
571      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
572        change rho -> rho-rhoConst
573      - replace call find_rho to find_rhonum
574    o initialisation of rFlx extended to full array (required by TAF)
575      and shifted to thermodynamics
576    o removed PTRACERS.h in ptracers routine
577    o added surfacetendencyPtr to S/R parameter list pracers_forcing
578    o Correcting initialisations for fVerU, fVerV.
579    o helping TAF to recognize dependency on kUp for
580      fVerU, fVerV
581    o Replacing delZ by delR in pkg/ctrl/
582    checkpoint51o_pre
583    
584    o undid all of cp51 pending some cleanups and discussion
585    o added the [#include "AD_CONFIG.h"] statement to all files that need
586       it for adjoint/tl #defines
587     o re-worked the build logic in genmake2 to support AD_CONFIG.h
588     o removed tools/genmake since it no longer works
589    
590    checkpoint51n_post
591    o modifications to make FREEZE flux visible to pkg/kpp
592      - moved surfaceTendencyTice from pkg/seaice to main code
593      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
594      - subroutine FREEZE now limits only surface temperature
595        (this means new output.txt for global_ocean.90x40x15,
596         global_ocean.cs32x15, and global_with_exf)
597    o added surface flux output variables to TIMEAVE_STATVARS
598    
599    checkpoint51n_pre
600    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
601    o added [#include "AD_CONFIG.h"] to all files that use the following
602      defines:
603      - ALLOW_ADJOINT_RUN
604      - ALLOW_TANGENTLINEAR_RUN
605      - ALLOW_ECCO_OPTIMIZATION
606    
607    checkpoint51m_post
608    o incorporating changes to get TAMC/TAF working in genmake2
609      - added new TAMC/TAF targets to the Makefile
610      - various cleanups related to package handling
611      - these changes should have no impact on the forward model
612    
613    checkpoint51l_post
614    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
615     - faster algorithm for cal_addtime.F
616     - higher precision arithmetic, where needed
617     - pkg/exf *startdate variables changed from calendar date to
618       model integration time
619    
620    checkpoint51l_pre
621    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
622    o enable to apply restoring on S & T only in a latitude band.
623    o update output (external_forcing_surf modif. change truncation errors)
624       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
625    
626    checkpoint51k_post
627    o change default to: useNHMTerms=.FALSE.
628     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
629       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
630     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
631        exp1, ideal_2D_oce
632     - change data file of oceanic exp (leave the results unchanged for now)
633       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
634    o set gravitySign automatically according to the vertical coordinate used
635      (and change sign: back to "logical" value: +1 when R increases downward)
636    o added an include barrier to the default CPP_OPTIONS.h and
637      removed the #include "PACKAGES_CONFIG.h" from it
638    o fix a bug in mom_fluxform (from chk51j_post)
639    
640    checkpoint51j_post
641    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
642    o adjusted some flow directives (dynamics, thermodynamics)
643    o added cubed-sphere case to test cost function
644    o heckpoint_lev?_directives.h now include
645      pkg-specific directives, whenever those are enabled.
646    o Moving pkg-specific flow directives to corresponding pkg
647      Moving pkg-specific differentiation list to corresponding pkg
648      Moving pkg-specific checkpoint-lev storing to corresponding pkg
649      ---> conventions are
650           - pkg_ad.flow
651           - pkg_ad_diff.list
652           - pkg_ad_check_lev?_dir.h
653    
654    checkpoint51i_post
655    o merge of the branch-genmake2
656      - knowingly breaks the older genmake
657      - automatic generation of all ALLOW_${PKG_NAME} defines
658      - new testreport supersedes older testscript
659    o large number of package inclusion and header cleanups
660    checkpoint51i_pre
661    
662    o new output for adjoin of global ocean vector invariant
663    o fix for checkpoint of thermodynamic seaice and bulk_force
664    o Steph gchem various cleanups
665    
666    checkpoint 51h_pre
667    o fixed some single quotes
668    o modify gchem pkg to be more versatile
669    o modifications to clean up dic pkg
670    o add pkg/cfc
671    
672    checkpoint51g_post
673    o provide links for ARPACK and ADM*TLM
674    o start removing verification/vero/
675    o update AD-related stuff
676      (in particular some IF-statements in model/src/ routines)
677    o adding to verification/global_ocean.90x40x15/ adjoint of
678      vector invariant setup
679    
680    checkpoint51f_post
681    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
682    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
683      of tracer Green's fucntions for ocean inversion project.
684    
685    checkpoint51f_pre
686    o Added on-the-fly spatial interpolation capability
687        "USE_EXF_INTERPOLATION" to pkg/exf.
688      - This is a temporary Cartesian-grid hack until
689        the super-duper ESMF coupler becomes available.
690      - See verification/global_with_exf/README for usage example.
691      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
692        flags and modified pkg/seaice accordingly.
693    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
694        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
695        non-local transport term.
696    
697    checkpoint51e_post
698    o pkg/mom_vecinv:
699      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
700      - add time-ave diagnostic of vorticity advection.
701    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
702    o atmospheric geopotential: - include water vapor effect;
703                                - use p^kappa in p* scaling.
704    o land pkg: read initial state from files.
705    o AIM : add stratospheric drag in the upper level
706    
707    checkpoint51d_post
708    o change function ILNBLNK (=> last non-blank char.) to return zero
709      (instead of the string length) when the string. char is empty
710    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
711    o modif's to restore TAMC compatibility
712      - avoid "_d" constructs in PARAMETER declarations
713      - avoid interrupting lines by comment lines
714    o Use cluster local disks for purely local I/O
715      vs. globally visible disks needed for ctrl stuff
716      (merged from ecco-branch)
717      - new active_file_loc... and mdsio_..._loc routines
718      - affected packages: autodiff, ctrl, grdchk, mdsio
719    
720    checkpoint51c_post
721    o introducing integer flag debugLevel
722      - debLevZero: suppress all output
723      - debLevA: standard
724      - debLevB: equivalent to current debugMode=.TRUE.
725    o introducing pathname variable mdsioLocalDir for mdsio
726      that can be specified at runtime
727      (relevant for cluster I/O to local disk)
728    `
729    >>>checkpoint51b_post
730    adjoint of ptracers
731    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
732    o extended state in checkpoint_lev?, etc.
733    o alternative ctrl/cost with tr1 or ptracer
734    o new comlev1_bibj_ptracers
735    o new ptracers.flow
736    o made ptracers_forcing same as external_forcing_s
737    o added verification for adjoint with ptracers
738      - adm. grdchk fail so far
739      - tlm. grdchk OK
740      - checked tapelev/comlev recomputations: OK
741    <<<checkpoint51b_pre
742    
743    checkpoint51a_post
744    o added code for biogeochemistry package
745      - new pkgs: dic, gchem
746      - new subroutine in ptracers
747    o modify code for biogeo packages
748      - in model/src and pkg/ptracers
749    
750    checkpoint51
751    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
752      - autodiff, ctrl, exf, grdchk, seaice
753      kept separate packages
754      - cost, ecco, obcs
755    o updating verification/internal_wave, verification/lab_sea
756      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
757    
758    checkpoint50i_post
759    o Preparing next differentiable checkpoint and sync
760      of MAIN vs. ecco-branch
761      - 1st step: this one is differentiable
762      - 2nd step: next(! not this) checkpoint will have updated packages
763                  from ecco-branch)
764    
765    checkpoint50h_post
766    o new package "land": provide surface BC for AIM.
767    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
768    o AIM: use true log-P extrapolation for near surface temp (= as in
769        F.Molteni paper) ; update aim.5l_cs output.
770    o New variable in PARM03 for more flexible pickups
771    o somewhat cleaned package initialisation sequence for
772      ctrl/ cost/ ecco/ in packages_... routines
773    
774    checkpoint50g_post
775    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
776      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
777      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
778        made the default because of faster convergence than ADI
779    
780    checkpoint50f_post
781    o exf totally restructured
782      - replaced all exf_set_ routines by one generic exf_set_gen.F
783        and made sure it's still differentiable
784      - split exf_getffields.F into new exf_bulkformulae.F
785      - exf_inscal_/exf_outscal_ suffixes consistent with field names
786      - updated adjoint/makefile and relevant verif. accordingly
787    
788    checkpoint50f_pre
789     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
790          + change Evap over land. (update aim.5l_cs output)
791     o added missing .cvsignores and made uniform across expts
792     o changed configuration of tidal_basin_2d expt
793     o added pkg/debug functions for tracing code in fatal crashes
794     o tidied pkg/monitor to use MONITOR_OPTIONS.h
795     o new fn in pkg/monitor to stop model if solution grows too big
796     o removed lots of single quotes from comments
797    
798    checkpoint50e_post
799    o make KPP work with PTRACERS
800     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
801       nearly a copy of kpp_transport_s
802     - there is no analogue to SurfaceTendencyS, so I have to use
803       gPtr(of the surface layer) instead
804    o add a new platform SunFire+mpi (SunFire 15000) to genmake
805    checkpoint50e_pre
806    
807    checkpoint50d_post
808    o change kpp output from multiple-record state files to single-record state
809      files analogous to write_state.F
810    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
811      analogous to the cg2d-related output.
812    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
813      so that writing to internal file fn (with length 512) fails.
814    checkpoint50d_pre
815    
816    checkpoint50c_post
817    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
818    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
819    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
820    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
821    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
822    
823    checkpoint50c_pre
824    Merging from release1_p13:
825    o bug fix for pkg/seaice dynamic solver
826    o Added SEAICE_initialHEFF to pkg/seaice
827    
828    checkpoint50b_post
829    o store u*,v* in gU,V instead of in guNm1,gvNm1
830    o in order to put the momForcing out of the Adams-Bashforth:
831      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
832      to timestep.F
833    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
834    o re-generate output for highly sensitive test-exp:
835       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
836    
837    checkpoint50b_pre
838    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
839    o corrected CPP option mismatch in exf_Bulk... functions for case
840      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
841    
842    checkpoint50a_post
843    o Bug fix for merging between c50 and KPP.
844      ikey was passed from thermodynamics to kpp_calc via
845      common block rather than being recomputed in kpp_calc,
846      in contradiction with new key itdkey.
847      New key ikppkey created, and tamc.h headers updated.
848    
849    checkpoint50
850    - 2nd step of merge with ecco-branch:
851      merge changes in ecco-branch back into main trunk
852    - bug fix in find_alpha
853    - more storing in gmredi_calc_tensor.F, kpp_routines.F
854    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
855    - merged some sliced AD support routines
856    
857    checkpoint49
858    merged from ecco-branch:
859    o exf:
860      - Enable initialisation of forcing fields to constant
861        (runtime) values.
862      - in exf_getffields.F
863        Reduce i-/j-loop to interior domain, discarding overlaps.
864        That also fixes wrong TAF-key computations for key_1, key_2
865        with bulf formulae.
866      - exf_init.F modify #ifdef for exf_init_evap
867      - exf_getffieldrec.F, ctrl_getrec.F
868        The following INT-usages are not safe:
869          fldsecs  = int(fldsecs/fldperiod)*fldperiod
870          fldcount = int(fldsecs/fldperiod) + 1
871        and were modified.
872    o autodiff: checkpoint_lev...
873      - updated storing for bulk formulae (some arrays were missing)
874      - added state for seaice package
875      - synchronized with main branch
876    o DIVA:
877      Modif.s in
878      - the_main_loop.F
879      - the_model_main.F
880      and added cost_final_restore.F cost_final_store.F
881      o With these changes, it is possible to fully separate
882        the first forward run to compute the cost function (mdthe_main_loop)
883        and adjoint runs over individual DIVA intervals (adthe_main_loop)
884        into separate model executions.
885        This enables better tuning of DIVA to given queue sizes.
886      o Loss of cost function value in consecutive DIVA runs is
887        fixed by storing to 'costfinal' file.
888      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
889        beginning/end of adjoint integration is accounted for.
890      The current changes apply to TAF-1.4.26.
891      TAF has one remaining bug, requiring one manual change
892      (see MITgcm manual).
893    o cal: synchronized between MAIN and ecco-branch
894    
895    checkpoint48i_post
896    o Changes to restore differentiability of code w.r.t. previous tag
897      (mostly adding new routines to make list and replacing
898      pressure by totPhiHyd).
899    o Updated and merged grdchk package
900      - has both ADM and TLM checks
901      - works for single- and multi-proc.
902      - output cleaned
903      - worked successfully for parallel DIVA
904    o genmake:
905      - Adding -platform=SP4
906      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
907    o Modif. for DIVA:
908      ctrl_unpack should not be called in intermediate DIVA interval.
909      (similar thing would apply for active files such as
910      tbar, sbar, psbar, which should not be reinitialised;
911      only relevant for ecco-branch)
912    
913    checkpoint48h_post
914    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
915    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
916    o Added SEAICE_initialHEFF to pkg/seaice
917    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
918    
919    checkpoint48g_post
920    --- EOS:
921    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
922      store total Potential in totPhyHyd for diagnostics & EOS.
923    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
924    --- Pressure/geopotential gradient:
925    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
926    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
927      ( changes results of global_ocean_pressure )
928    o NLFS + z-coord.: add eta*Rho' contribution.
929    o accurate phiHyd when using interface-W at the middle between 2 centers
930     ( changes results of ideal_2D_oce )
931    o includes r* 2nd term in potential gradient.
932    
933    checkpoint48f_post
934    Merging from release1_p12:
935    o Modifications for using pkg/exf with pkg/seaice
936      - improved description of the various forcing configurations
937      - added basic radiation bulk formulae to pkg/exf
938      - units/sign fix for evap computation in exf_getffields.F
939      - updated verification/global_with_exf/results/output.txt
940    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
941      (SBO) core products, including oceanic mass, center-of-mass,
942      angular, and bottom pressure (see pkg/sbo/README.sbo).
943    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
944      to avoid negative values in shallow regions.
945      - updated verification/natl_box/results/output.txt
946      - updated verification/lab_sea/results/output.txt
947    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
948    o Added useSingleCpuIO option (see PARAMS.h).
949    o Updated useSingleCpuIO option in mdsio_writefield.F to
950      work with multi-field files, e.g., for single-file pickup.
951    o pkg/seaice:
952      - bug fix in growth.F: QNET for no shortwave case
953      - added HeffFile for specifying initial sea-ice thickness
954      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
955    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
956      kpp_transport_t.F, forward_step.F, and the_main_loop.F
957    o pkg/seaice:
958      - adjoint-friendly modifications
959      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
960    
961    checkpoint48e_post
962    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
963    o dynamics: change definition of computational domain & adapt mom_fluxform
964      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
965    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
966        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
967        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
968        global_ocean.90x40x15 global_with_exf global_ocean_pressure
969        inverted_barometer solid-body.cs-32x32x1
970      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
971    
972    checkpoint48d_post
973    o in preparation for r*:
974     a) use pre-computed gradient of hydrostatic potential:
975        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
976     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
977        => affects results of glob_oce_pressure (different truncation error)  
978      update output.txt of ideal_2D_oce & global_ocean_pressure
979    
980    checkpoint48d_pre
981    o in preparation for r*:
982      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
983      pass the 2 comp. of the grad. as arguments to momentum S/R.
984      but for the moment, only used if it does not change the results.
985    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
986    
987    checkpoint48c_post
988    Modifications in treatment of initial flux forcing controls
989    to avoid extra storing of flux fields.
990    
991    checkpoint48c_pre
992    o Added tidal_basin_2d experiment (currently 1D!)
993    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
994    
995    checkpoint48b_post
996    o r* coordinate added in #ifdef NONLIN_FRSURF block.
997     (modification to pressure gradient not yet implemented)
998    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
999      (for U & V) that are used for vertical advection of momentum.
1000    
1001    checkpoint48a_post
1002    o In preparation for r*, use temp. array to compute vertical transport
1003       in flux-form momentum pkg. => change results of few test-exp.
1004      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1005                        lab_sea, natl_box & plume_on_slope
1006    
1007    checkpoint48
1008    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1009    
1010    checkpoint47j_post
1011    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1012    o moved adexch from forward_step to addummy_in_stepping
1013    o added exch in ctrl_map_...
1014    o aveFreq.=0. at end of cost_final to avoid overwrite in
1015      reverse checkpointing loop
1016    o Yet more changes in gmredi:
1017      * adgmredi_calc_tensor
1018        avoiding all recomputation of gmredi_slope_limit
1019      * adgmredi_x/y/rtransport
1020        added flag for excessive storing to avoid recomp. of
1021        u/v/rtans, dTdx/y/z
1022        -> this is not really necessary and very memory-consuming
1023      * adgmredi_slope_psi:
1024        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1025      * gmredi_slope_limit
1026        re-activated full calculation of taperfct for case 'ac02'
1027    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1028    
1029    checkpoint47i_post
1030    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1031    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1032      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1033    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1034    o gmredi: fix few bugs.
1035    
1036    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1037    This will be a good checkpoint to plug into the ecco-branch.
1038    o few modif.'s to get latest version adjointed
1039      (mainly kick out code in ini_linear_phisurf)
1040    o modif's to run adjoint with exactConserv
1041    o case GM_BOLUS_ADVEC should be cleaned
1042      S/R gmredi_slope_psi should be cleaned
1043    o verification/carbon now has exactConserv=.TRUE.
1044    
1045    checkpoint47g_post
1046    o time-average AIM output: becomes independent from statvars time-average
1047      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1048    o After TAF bug fix:
1049      Tested adjoint of gmredi package.
1050      Tests were done with checkpoint47 rather than with latest
1051      checkpoint47f_post since the latter is broken for the adjoint
1052      verification/carbon/ contains both ADM and TLM gradient checks.
1053    Here they are, before they get changed/lost/stolen.
1054    Mostly modif.'s to fix numerical sensitivities.
1055    Gradient checks OK for
1056    - GM_taper_scheme:
1057      * clipping
1058      * ac02
1059      * linear
1060      * glw91
1061      * dm95
1062      * ldd97
1063    - GMREDI_OPTIONS:
1064      * GM_VISBECK_VARIABLE_K
1065      * GM_NON_UNITY_DIAGONAL
1066      * GM_EXTRA_DIAGONAL
1067      * GM_BOLUS_ADVEC
1068    in conjunction with data.gmredi parameters to be checked in
1069    in a few minutes under verification/carbon/code/
1070    
1071    checkpoint47f_post
1072    Merging from release1_p10:
1073    o modifications for using pkg/exf with pkg/seaice
1074      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1075        and SEAICE_EXTERNAL_FLUXES
1076      - pkg/exf CPP options EXF_READ_EVAP and
1077        EXF_NO_BULK_COMPUTATIONS
1078      - usage examples are Experiments 8 and 9 in
1079        verification/lab_sea/README
1080      - verification/lab_sea default experiment now uses
1081        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1082    
1083    checkpoint47e_post
1084    o created a tag prior to creating a branch
1085    
1086    checkpoint47d_post
1087    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1088      at the bottom boundary had an erroneous half slip boundary condition
1089    o added bottom drag and no slip boundary condition capabilities to
1090      oceanic pressure coordinates code
1091    o added new verification experiment global_ocean_pressure, this experiment is
1092      also described in the tutorial section of the manual
1093    checkpoint47d_pre
1094    
1095    checkpoint47c_post
1096    o Added a verification experiment for a global cubed-sphere ocean run
1097      -  verification/global_ocean.cubed32x32x30
1098      -  uses pkg/therm_seaice and pkg/bulk_forcing
1099    
1100    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1101    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1102      when using P-coordinate; only implemented for atmospheric config.
1103    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1104      NOTES: requires option NONLIN_FRSURF to be "#define".
1105    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1106    
1107    checkpoint47b_post
1108    Merging from release1_p9:
1109    o pkg/seaice
1110      - removed GOTO's and added taf directives
1111      - double precision constants to reduce the g77 (Linux)
1112        to F77 (SGI) differences reported in release1_p8
1113    o tools/genmake
1114      - added SGI options
1115    o verification/testscript
1116      - updated to that of checkpoint47a_post
1117    o verification/global_ocean.90x40x15/input/eedata
1118      - modified for SGI f77 compatibility
1119    o verification/lab_sea
1120      - added description of sea-ice model
1121      - added missing matlab routines
1122      - added test of thermodynamics parallelization
1123    
1124    checkpoint47a_post
1125    o new pkg: aim_v23
1126     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1127       for now, keep the same surface forcing as before.
1128     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1129     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1130     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1131    o add diagnostic of surface correction term in monitor output
1132    
1133    o bulk_force and therm_seaice
1134    - Two packages:  bulk_force (Bulk forcing)
1135      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1136    - Earlier integration from Stephaine Dutkiewicz
1137      and Patrick Heimbach.
1138    - Two ifdef statements for compile time,
1139       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1140    
1141    checkpoint47
1142    differentiable version of checkpoint46n_post
1143    o bug fix in quasihydrostaticterms
1144    o * "clean" adjoint code (in terms of extensive recomputations)
1145        can now be obtained for all GMREDI options (i.e. for
1146        - GM_VISBECK_VARIABLE_K
1147        - GM_NON_UNITY_DIAGONAL
1148        - GM_EXTRA_DIAGONAL
1149        - GM_BOLUS_ADVEC )
1150      * However, wrong gradient check problem remains unsolved.
1151      * New CPP options have been introduced for different
1152        tapering schemes
1153    o external_fields_load now part of differentiation list
1154    o pressure needs multiple storing;
1155      would be nice to have store_pressure at beginning or
1156      end of forward_step, e.g. by having phiHyd global (5-dim.)
1157      (NB: pressure is needed for certain cases in find_rho,
1158      which is also invoked through convective_adjustment).
1159    o recomputations in find_rho for cases
1160     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1161    o #define ATMOSPHERIC_LOADING should be differentiable
1162    o ini_forcing shifted to begining of initialise_varia
1163    o Incorporating QNVS line search routines into MITgcm
1164      (this is separate code, and therefore not under pkg)
1165      lsopt/, optim/
1166    o Updated verification/carbon/
1167      - #define GM_VISBECK_VARIABLE_K
1168      - GM_taper_scheme    = 'ldd97'    
1169    
1170    checkpoint46n_post
1171    Merging from release1_p8:
1172    o verification/natl_box:
1173      updating new external_fields_load routine
1174    o New package: pkg/seaice
1175      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1176      The sea-ice code is based on Hibler (1979-1980).
1177      Two sea-ice dynamic solvers, ADI and LSR, are included.
1178      In addition to computing prognostic sea-ice variables and diagnosing
1179      the forcing/external data fields that drive the ocean model,
1180      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1181      The implied surface heat flux is then stored in variable
1182      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1183      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1184      non-local transport term.  Because this call precedes model
1185      thermodynamics, temperature under sea-ice may not be "exactly" at
1186      the freezing point by the time theta is dumped or time-averaged.
1187      N.B.: fairly large differences in accuracy occur across
1188            different platforms/compilers; comparison between
1189            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1190            generated output gives:
1191       T           S           U           V
1192      C D M    c        m  s        m  s        m  s        m  s
1193      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1194      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1195      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1196    
1197      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1198    o GAD:
1199      - generated new common blocks to account for call of
1200        same gad routines with differing traceridentities
1201        (needed to modify tracerIdentity indices in GAD.h)
1202      - generated separate common blocks for case useCubedSphereExchange
1203        (Department of Futurology)
1204      - parameter lists to gmredi_?transport: added tracerIdentity
1205      - added new key indices to tamc.h
1206    o external_fields_load:
1207      - added this routine to TAF list
1208      - needed to make some common blocks global and additional storing
1209        along the same lines as exf package (checkpoint_lev?_directives.h)
1210    o exf:
1211      updated external forcing package
1212      - bug fixes carried over from ecco-branch
1213        (missing OBCS_OPTIONS.h in two routines)
1214      - enable easy to use "no forcing".
1215      - added exf I/O for atmospheric loading
1216      - added exf I/O for runoff data
1217      - transfered scaling between exf <-> MITgcm to exf namelist
1218    o Adding new verification experiment global_with_exf.
1219      This verification experiment is almost identical to the
1220      global_ocean.90x40x15 experiment, except that it uses
1221      the exf (and cal) package instead of the
1222      external_fields_load routine (cf README file).
1223    
1224    checkpoint46m_post
1225    o modified testscript to return -- when there are no lines of "%MON" output
1226    o added new flag "quasiHydrostatic" for QH mode
1227      and new routine quasihydrostaticterms()
1228    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1229      New routine: mom_u_coriolis_nh()
1230    o fixed sign of non-hydrostatic metric terms in u and v equations.
1231      Depend on correct sign of gravitySign.
1232    o added work.pc* to .cvsignore in aim directories using ifc
1233    o introduced flag for controllin non-hydrostatic metric terms
1234    o removed gravitySign from PARM04
1235    o switched to g77/ifc from pgf77 in aim experiments
1236    
1237    checkpoint46l_post
1238    o made convective adjustment work with pressure coordinates:
1239     - changed the direction of k-loop in convective_adjustment.F for the
1240       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1241     - adjusted the reference pressure k-index in convective_adjustment.F
1242     - adjusted the convection condition in convect.F (in analogy to
1243       calc_ivdc.F)
1244     - convective_adjustment no longer computes anything on the halos
1245     - removed the warnings about negative salinity from find_rho.F and
1246       find_alpha.F; instead the new routine look_for_neg_salinity, called
1247       at the beginning of find_rho, find_alpha, and find_beta, does a
1248       check of the entire slice, if CPP-option
1249       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1250    checkpoint46l_pre
1251    
1252    checkpoint46k_post
1253    o fixed the verification/global_ocean.90x40x15 experiment:
1254     - new bathymetry (the world according to A., JMC, and M.)
1255     - new initial fields and forcing fields (*.bin files)
1256     - new POLY3.COEFFS (for the next release one should switch to a full
1257       equation of state: JMD95P or MDJWF)
1258     - fixed several errors and redundancies in the data file
1259     - experiment uses looped cells
1260     - added matlab directory with diagnostic scripts for plotting of output
1261    
1262    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1263     - read AIM physics parameters from a file (data.aimphys)
1264     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1265    
1266    checkpoint46j_post
1267    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1268    o move wVel computation at the end of the time step, in S/R integr_continuity
1269    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1270    o update timeave pkg for wVel diagnostic.
1271    checkpoint46j_pre
1272    
1273    checkpoint46i_post
1274    o Clean up AIM package (and keep the results unchanged):
1275      include CPP_OPTION and use IMPLICT NONE in all routines ;
1276      declare all the variables _RL ; use _d 0 for all numerical constants.
1277      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1278    
1279    checkpoint46h_post
1280    o cleaned up the use of rhoNil and rhoConst.
1281      - rhoNil should only appear in the LINEAR equation of state, everywhere
1282        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1283        and the dynamical equations are all divided by rhoConst
1284    o introduced new parameter rhoConstFresh, a reference density of fresh
1285      water, to remove the fresh water flux's dependence on rhoNil. The default
1286      value is 999.8 kg/m^3
1287    o cleanup up external_forcing.F and external_forcing_surf.F
1288      - can now be used by both OCEANIC and OCEANICP
1289    checkpoint46h_pre
1290    
1291     Added code to convert surface volume flux (fresh water) into
1292     a mass flux when using P coordinates in the ocean (OCEANICP).
1293     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1294    
1295    checkpoint46g_post
1296    o Include a new diagnostic variable phiHydLow for the ocean model
1297      - in z-coordinates, it is the bottom pressure anomaly
1298      - in p-coordinates, it is the sea surface elevation
1299      - in both cases, these variable have global drift, reflecting the mass
1300        drift in z-coordinates and the volume drift in p-coordinates
1301      - included time averaging for phiHydLow, be aware of the drift!
1302    o depth-dependent computation of Bo_surf for pressure coordinates
1303      in the ocean (buoyancyRelation='OCEANICP')
1304      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1305        Theta, Salinity, and Pressure in the parameter list. This routine is
1306        presently contained in find_rho.F. This routine does not give the
1307        correct density for 'POLY3', which would be a z-dependent reference
1308        density.
1309    o cleaned up find_rho
1310      - removed obsolete 'eqn' from the parameter list.
1311    o added two new verification experiments: gop and goz
1312      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1313    checkpoint46g_pre
1314    
1315    checkpoint46f_post
1316    o Enable tangent linear (forward mode) gradient checks:
1317      - extended active file handling to g_... files
1318      - added TANGENT_SIMULATION to theSimulationMode
1319      - extended grdchk package accordingly
1320    o added tangent linear setup in verification/carbon/code_ftl
1321    o added adjoint setup in verification/front_relax/code_ad
1322    
1323    checkpoint46e_post
1324    o Added new equation of state -> MDJWF
1325      - EOS of McDougall et al., 2002, JAOT, submitted
1326      - caveat: the equation of state is only valid for a smaller (more
1327        realistic?) range of values than JMD95P/Z and UNESCO
1328      - added masks to the calculation of pressure in store_pressure
1329      - added more check values for density in check_eos (ini_eos.F), some of
1330        the old check values are out of the range of the MDJWF-eos, so don't
1331        expect perfect matches for those
1332    checkpoint46e_pre
1333    
1334    checkpoint46d_post
1335    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1336      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1337      case of pressure coordinates. eosType='JMD95Z' in
1338      combination with buoyancyRelation='OCEANICP' now causes an error.
1339    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1340      in find_alpha/beta.
1341    checkpoint46d_pre
1342    
1343    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1344      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1345    
1346    checkpoint46c_post
1347    o Changes necessary for ocean in p-coordinates
1348     -  Added new buoyancy relation = 'OCEANICP'
1349     -  Added new parameters = gravitySign (this used to be contained inside
1350        the factor dRdZ which I added when we first switched to R coordinates).
1351     X GM/Redi is not compatible (yet)
1352     X bottom drag and no-slip need to be debugged.
1353    checkpoint46c_pre
1354    
1355    checkpoint46b_post
1356    o Added new equation of state -> JMD95Z and JMD95P
1357      - EOS of Jackett and McDougall, 1995, JAOT
1358      - moved all EOS parameters into EOS.h
1359      - new routines ini_eos.F, store_pressure.F
1360    o Added UNESCO EOS, but not recommended because it requires
1361      in-situ temperature (see JMD95)
1362    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1363      unesco.f to be used with POLY3
1364    checkpoint46b_pre
1365    
1366    checkpoint46a_post
1367    o Added (atmospheric) pressure loading
1368      - new field in FFIELDS.h, etc...
1369      - new cpp flag ATMOSPHERIC_LOADING
1370    o Changed hFacC to _hFacC in calc_phi_hyd.F
1371    o Added SHORTWAVE_HEATING to some files for consistency
1372    checkpoint46a_pre
1373    
1374    checkpoint46
1375    further merges from release1_p5
1376    o new ctrl package
1377      - adopted from ECCO environment to enable optimization
1378      - added Eliassen Palm fluxes to controls
1379    o added Eliassen Palm flux controls to gradient check package
1380    o cost package
1381      - Compatible with new ctrl package
1382      - added Eliassen Palm cost hooks
1383      - modif's of existing cost functions
1384    o Adjoint-related bug fixes in kpp:
1385      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1386      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1387    o autodiff package
1388      - flow directives:
1389        + new for S/R do_the_model_io
1390        + enhanced for S/R checkpoint
1391        + new gmredi.flow
1392      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1393        disable adcommon.h/g_common.h by default.
1394      - fixed problem for adjoint of global_max
1395    o modified verification/carbon/
1396    o New setup for adjoint of global_ocean
1397    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1398    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1399    o incorporated hooks for sponge layer code (external_forcing.F)
1400    
1401    checkpoint45d_post
1402    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1403    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1404      (affects plume_on_slope "cg2d" output)
1405    o add new parameter deltaTfreesurf for free-surface time stepping
1406    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1407    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1408    o change phiMin in exp1 (to agree with documentation)
1409    o add new flags:
1410     - T,S forcing inside/outside Adams-Bashforth
1411     - turn off temp,salt advection and/or forcing
1412     - for each tracer, define internal flag for multiDimAdvection & A-B
1413    o monitor: change definition of KE to check conservation of Energy
1414    
1415    checkpoint45c_post
1416    o Removed f90 comments ("!")
1417    o Modified initialisations to enable exf package for MITgcm
1418      (without invoking ECCO_PACKAGE).
1419    o modifications to gradient check package (Martin Losch)
1420      - enable centered differences
1421      - modified format of standard output
1422    
1423    checkpoint45b_post
1424    o cleaned exchange calls in cg2d
1425    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1426    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1427      to configure barotropic setup (Martin Losch)
1428    o moved some initialisations within bi,bj loop in dynamics
1429      (TAF flow dependency)
1430    o in initialise_varia, moved call packages_init_variables
1431      before convective_adjustment_init
1432      (corresponding adjustment of TAF tape initialisation).
1433    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1434    
1435    checkpoint45a_post
1436    o compute Rho over the whole domain (extend iMin,jMin indices)
1437    o specific exchange for X-slice domain (case Ny=1)
1438    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1439    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1440    
1441    checkpoint44h_post = checkpoint45
1442    o Fix to restore differentiability:
1443      place at which packages_init_variables is called in
1444      initialise_varia is crucial for reverse control flow.
1445    o modifications in GMRedi to enable stable adjoint
1446      (corresponding modif's in thermodynamics, dynamics)
1447    o added missing hook for sponge layer code in external_forcing
1448    o modified test cost functions
1449    o storing in gad_advection (plus removal of write(0,*)!
1450    o missing headers TR1.h added in convective_adjustment routines
1451    o errorMessageUnit set non-equal zero in eeboot
1452      (conflict on some platforms, e.g. IBM SP3)
1453    o modified carbon verif.
1454    
1455    checkpoint44h_pre
1456    o vertical grid option: allow to put the Interface at the middle between
1457      2 cell-centers ; replace delZ in pkg/kpp by drF.
1458    o GM Advective form: Tracers are advected using the residual transport (=
1459      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1460    
1461    checkpoint44g_post
1462    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1463      results) ; ifdef missing in thermodynamics.F
1464    
1465    checkpoint44f_pre,checkpoint44f_post
1466    o added PTRACERS package
1467      This allows an arbitrary number of passive tracers to be integrated
1468      forward simultaneously with the dynamicaly model.
1469      + Implemented so far:
1470        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1471        - I/O and checkpointing
1472        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1473      + Not implemented so far:
1474        - KPP
1475        - OBCS
1476      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1477        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1478        line in data.pkg.
1479      + This package is disabled by default since it increases storage.
1480    
1481    
1482    o testscript: added -cleanup option
1483    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1484                 b) enable to filter 2D fields.
1485    
1486    checkpoint44e_pre,post
1487    o re-wrote convective adjustment to use pre-calculated weights
1488      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1489      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1490      Original calls to convect() still in place.
1491    
1492    chkpt44d_pre,post
1493    o added missing EXCLUDE_MONITOR flags
1494    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1495      (incompatible typ in MIN/MAX expressions caused problems
1496      on IBM SP3)
1497    o in genmake added variable MAKEDEPEND
1498      plus resetting for case SunOS
1499    o added timer_stats.c routine for IBM SP3
1500    o removed variables in dynamics
1501    !!! I forgot to create tag chkpt44d_pre !!!
1502    !!! But chkpt44d_pre = chkpt44c_post    !!!
1503    
1504    o real fresh water flux implemented with non-linear free-surface.
1505    
1506    chkpt44c_pre,post
1507    o few fix (mask in shap_s2, EmPmR in external_field_load,
1508      USE_NATURAL_BCS in solve_for_P);
1509    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1510    
1511    checkpoint44b_pre/_post
1512    o merge of relevant stuff from the ecco-branch:
1513      - genmake: removed $S64 overwrite for case SunOS
1514      - pkg/exf: update and corrections for field swapping and obcs
1515      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1516                  harmonized between ECCO and MITgcm
1517      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1518                      updated checkpointing_lev... lists for obcs
1519      - model/src: minor changes in forward_step, plot_field
1520                   added directive for divided adjoint in the_main_loop
1521      - pkg/mdsio: added mdsio_gl_slice
1522    
1523    o check parameters & config (chkpt44a_pre,post)
1524    o OBC and NonLin_FrSurf.
1525    
1526    checkpoint44
1527    o fix bug in mom_vi_del2uv
1528    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1529    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1530    o update AIM experiments (NCEP input files)
1531    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1532    o added some stuff for AD
1533    
1534    checkpoint43
1535    o added two new advection tests
1536    o added global 4x4 degree ocean test
1537    o added test of H&S94 with free surface on cube
1538    o some final mods for gradient check, adjoint,...
1539    
1540    checkpoint42
1541      Fixed AD-related problems:
1542    o Store directives up-to-date with re-arranged Adams-Bashforth
1543      (mainly thermodynamics.F)
1544    o New store directives for multi-dim. advection schemes
1545      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1546      * new common block and key passkey
1547      (mainly gad_advection.F)
1548    o Modified store directives for split of dynamics/thermodynamics
1549      for the case ALLOW_KPP
1550    o Cleaned argument list for timestep_tracer.F
1551    
1552    checkpoint41
1553    o re-formatted/added comments in prologues of key subroutines
1554      to work with protex
1555    
1556    checkpoint40
1557    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1558    o added FLT (floats) package from Arne along with demo. experiment
1559    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1560      implementation of forward-in-time forcing terms
1561    o more mods for non-linear free-surface including new variable
1562    o modified multi-dim method to work on cube
1563    o bug fix in KPP (from DM)
1564    
1565    checkpoint40pre9
1566    o added DST advection schemes
1567    o fix MPI bug on SGI's
1568    o modifications for non-linear free-surface
1569    o fixed conditionals for fixed flow/passive tracer only mode
1570    o added tension/strain form of stress tensor
1571    o changes to commenting of arguments for TAF/TAMC
1572    o added/updated many matlab scripts
1573    o added multi-dimensional advection method for tracers
1574      
1575    checkpoint40pre8
1576    o new package rw/
1577      Added method for dumping intermediate local arrays:
1578      mdsio_writetile - same as mdsio_writefield except works from inside
1579                        bi,bj loop
1580      mdsio_writelocal - same as mdsio_writetile except works for local
1581                         arrays
1582      write_local_r? - higher-level wrapper for mdsio_writelocal
1583      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1584      Example given at end of mom_vecinv.F that dumps some local arrays.
1585    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1586      control flux-form versus vector invariant code.
1587      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1588      or genmake -DISABLE ...
1589    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1590      (additional storing is now needed for case vecinv;
1591      currently nothing implemented to switch this storing off
1592      in case fluxform is used since no CPP flag available).
1593    
1594    checkpoint40pre7
1595    o bug fix in dynamics.F
1596      calc_viscosity called before k=1,Nr loop.
1597    o added some #ifdef's ALLOW_PASSIVE_TRACER
1598    o cleaned initialisations in ctrl_map_ini
1599      related to TAF
1600    
1601    checkpoint40pre6
1602    o split dynamics into thermodynamics & dynamics
1603    o corresponding split of calc_diffusivity into
1604      calc_diffusivity, calc_viscosity
1605      (kpp_calc_diff, kpp_calc_visc).
1606    o Added diffkr, kapgm to control variables
1607    o bug fix in gmredi_slope_limit for ldd97
1608    
1609    checkpoint40pre5
1610    o proper initialization of Adams-Bashforth time stepping
1611      + uses forward step for very first step of model (iter=0)
1612    o re-generated *all* output since almost all output is modified by this
1613      change (sorry but we've been putting this one off for about 2 years)
1614      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1615        *not* regenerated since they are already out of date and I don't
1616        want to create the impression that they are suddenly working.
1617    o removed KAP stuff for DEC's
1618    o modified/added many .cvsignore files in */code and */input
1619    o added new expt "solid-body.cs-32x32x1"
1620      + this uses an alternative form of ini_curvilinear_grid.F which
1621        is not necessarily any better than the current one...
1622    
1623    checkpoint40pre4
1624    o added re-initialisations of utrans,vtrans,rtrans in
1625      calc_common_factors which are crucial for TAF.
1626    o extended iMin,jMin range for calc_common_factors,
1627      calc_diffusivity
1628    o added option ALLOW_PASSIVE_TRACER
1629    o a few minor updates and fixes
1630    
1631    checkpoint40pre3
1632    o created calc_gtr1.F for gad package
1633    o split the_main_loop and re-introduced forward_step
1634    o some recomputations of nIter0 for TAMC
1635    
1636    checkpoint40pre2
1637    o Updated to latest branch of AJA, JMC
1638    o Added gradient check package
1639    o Added routines for passive tracer handling
1640    o Added carbon sequestration sensitivity experiment
1641    
1642    checkpoint39
1643     o Modifications and fixes to support TAMC
1644       (mainly missing or wrong directives)
1645     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1646       in addummy_in_stepping
1647     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1648     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1649     o Included following packages:
1650       cal: calendar
1651       exf: external forcing
1652       ecco: essential routines to control use of cal, exf
1653             (NB: this is not the full ECCO environment)
1654     o disabled some packages by default in genmake
1655    
1656    checkpoint38
1657     o see notes_c37_adj.txt
1658     o corrected wrong layer index in external_forcing_t
1659     o replaced the_main_loop/forward_step by the_main_loop
1660     o removed forceoutput from write_state
1661       (replaced criteria for initial/final state)
1662     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1663    
1664    checkpoint37
1665     o mdsio.F routine split and packaged in pkg/mdsio
1666       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1667        used unless genmake -disable=mdsio)
1668     o allow a more precise surface-geopotential gradient for the atmosphere
1669       taking into account the change in space of Alpha (=1/rho) at the surface.
1670     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1671       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1672     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1673       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1674       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1675     o Time-Average diagnostics defined as a pseudo package "timeave".
1676     o pickup files : old pickup (before c35) did not work with new code (c35
1677       and after) unless activating 2 commented lines in initialise-varia.
1678     o Non-Hydrostatic pickup file Pb fixed.
1679     o bug with Rigid-lid version (since c35) fixed.  
1680    
1681    checkpoint36
1682     o implement Crank-Nickelson barotropic time-stepping
1683     o recover Time-Average diagnostics
1684     o fix Pb in checkpoint (PR#19)
1685     o AIM become a standard package ; clean unused CPP_kees
1686    
1687    checkpoint35
1688     o subtantial rewrite of dynamics.f
1689     o allows staggered time-stepping
1690     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1691     o added bottom drag (linear + quadratic)
1692    
1693    checkpoint34
1694     o Modified exchange routines for correct reverse simulation.
1695     o Added verification output to comply with bug fix in impldiff.F
1696       as of c33 (exp2, natl_box).
1697     o Corrected store directives in dynamics.F
1698     o Corrected array boundaries in impldiff.F
1699     o Corrected array dimensions in gmredi.
1700       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1701     o Added routine GLOBAL_SUM_INT to global_sum.F
1702     o Added mdsio_gl.F for ECCO purposes.
1703    
1704    checkpoint33
1705     o Fixed bug in lower BC in impldiff.F
1706     o Fixed confusion about units of forcing arrays in FFIELDS.h
1707       namely Fu,Fv,Qnet,Qsw,EmPmR:
1708       - Removed verification/natl_box/code/external_fields_scale.F
1709         (did not differ from that in model/src)
1710       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1711         (see FFIELDS.h for description)
1712       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1713         kpp_calc.F and kpp_transport_t.F
1714       - Removed model/src/external_fields_scale.F and calls to it
1715       - verification/natl_box uses flux data with "atmospheric" sign so
1716         a special version of external_fields_load.F is used to
1717         change the data as it's read in. This way, the arrays
1718         have the right units and signs at all times tha a user could
1719         possibly use them.
1720     o Corrected genmake to delete a temporary file during configuration
1721    
1722    checkpoint32
1723     o Scaling of forcing fields moved from external_forcing.F to
1724       external_fields_scale.F, called directly after loading fields.
1725     o Surface relaxation terms added to surface tendency fields in
1726       extra subroutine.
1727     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1728       fields.
1729     o Changes in GMRedi to comply with packaging structure.
1730     o Modifications and bug fixes in KPP package.
1731     o Verification experiment for KPP added (verification/nat_box/)
1732    
1733    checkpoint31
1734     o Packages interface brought in line with defined standard
1735       -> new routines packages_...F
1736       -> changes in initialise_fixed.F, initialise_varia.F
1737       -> enables initialisation interface for ECCO package
1738     o Rescaling of external forcing fields immediately after read
1739       (removed from external_forcing.F)
1740       -> new: surface_fields_scale.F
1741       -> affects ini_foorcing.F, external_fields_load.F
1742     o Computation of surface tendencies before tendency updates.
1743       -> new: external_forcing_surf.F
1744     o Change of variable names useGMRedi, useKPP, useECCO
1745     o Further changes in dynamics.F, impldiff.F for TAMC
1746     o Tested for experiments 0, 2, 4.
1747       - not yet tested for GMRedi.
1748       - not yet tested for KPP.
1749    
1750    checkpoint30
1751     o Updates for OBCs
1752     o New experiment for test OBCs (internal_wave)
1753     o New output.txt in verification/exp4/results/
1754     o Updates for KPP: calculation of viscosity corrected, new variables
1755       kpp_dumpFreq and kpp_taveFreq
1756     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1757       and entry for T90 in genmake
1758    
1759    checkpoint29
1760     o packaged KPP and GM/Redi
1761    
1762    checkpoint28
1763     o Corrected initialization of hFacMin for difference vertical coordinates
1764     o Modified calculation of partial cell thickness to more robust algorithm
1765     o config_summary.F: replaced write_1D_... by write_0D_...
1766       read_write.F: added subroutines write_0D_...
1767     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1768       included some initialisations required for TAMC.
1769     o routine calc_isoslopes: modified sqrt computation to make it
1770       differentiable for zero argument.
1771     o routines dynamics, impldiff:
1772       included store directives and tape key computations required for TAMC.
1773     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1774    
1775  checkpoint27  checkpoint27
1776   o fixed calc_isoslopes() to so that cancellation of terms in tensor   o fixed calc_isoslopes() to so that cancellation of terms in tensor
1777     formulation works properly with variable resolution.     formulation works properly with variable resolution.

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