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revision 1.95 by adcroft, Tue Nov 5 19:14:26 2002 UTC revision 1.350 by jmc, Wed Sep 22 15:55:24 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint55b_post
7    o add a 2D scalar, Z location, exchange_2 routine.
8    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
9      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
10      affects advect_cs results (for the wrong reason): update output.txt
11    o use a more standard discretization for biharmonic viscosity ;
12     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
13      affects results of dome set-up: update output.txt
14    o fix gad_advection.F (CubedSphere part), back to version 1.23
15    o fix bug in mom_vi_del2uv.F (CubedSphere part).
16    
17    checkpoint55a_post
18    o merged code to
19      * prescribe/read time-dependent open boundaries
20        (works in conjunction with exf, cal)
21      * sponge layer code for open boundaries
22      * each boundary N/S/E/W now has its own CPP option
23        (healthy for the adjoint)
24    
25    checkpoint55
26    o up-to-date adjoint of previous breaks
27      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
28      - global_ocean_ebm: adjoint still needs fix (TLM ok)
29      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
30      - carbon: * remove tr1-related adjoint verification
31                * add ptracer as control variable
32    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
33      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
34    
35    checkpoint54f_post
36    o in verification/carbin/ remove experiment related to
37      ALLOW_PASSIVE_TRACER (array tr1 etc)
38      code_ad/ input_ad/ results_ad
39    
40    o add two new packages
41      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
42        + subject to optimization (memory)
43      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
44        + subject to reordering (many GOTOs in the original code)
45        + so far opps is called for every (i,j) point, and then operates in
46          the vertical; one may want to reorder the scheme in order operate in
47          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
48          fields)
49    o overhaul of IO so that we now have flags for MDSIO and/or MNC
50      - all verification tests compile and run with linux_ia32_g77
51      - defaults are compatible with current input files--nothing
52        should change if you were not previously using MNC
53      - MNC output has been added in numerous places (eg. timeave)
54        but there are still a few writes not yet do-able with MNC
55        (this is in progress)
56      - flags now allow for either/or/both use of MDSIO and MNC and
57        documentation will soon follow
58      - numerous small formatting cleanups for ProTeX
59    o add version info (via BUILD_INFO.h) to MNC and stdout
60    
61    checkpoint54e_post
62    o add two new packages
63      - pp81 (Packanowski and Philander, 1981), Richardson number and
64        stratification dependent mixing
65      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
66      - these scheme operate in a similar manner as KPP (without ghat, of
67        course), however there is only one diffusivity that is used for both
68        temperature and salinity (and passive tracers)ç
69    o add offline package
70    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
71      provided by Stephanie Dutkiewicz
72    o genmake2: add ability to search for C compilers and cleanup test output
73      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
74    
75    checkpoint54d_post
76    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
77    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
78      leading to additional shift by 5 days each year of integration
79       (i.e. leading to considerable offset over the years)
80    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
81    o start with no AB and no initial filtering (staggerTimeStep):
82      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
83    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
84      (external loading & cpl import/export stay in forward_step.F)
85    o update coupling interface to work with new staggerTimeStep
86    o change MDSIO ptracers_pickup.
87    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
88    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
89    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
90    
91    checkpoint54c_post
92    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
93      this affects (truncation error) output.txt of test-exp:
94       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
95    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
96    o change Qnet to always be the net heat flux, (+upward).
97      affects (truncation error) output of natl_box exp.: updated
98    o define the max number of passive tracers in PTRACERS_SIZE.h
99    o start to test mnc routinely in exp0
100    o add sea-ice loading (sIceLoad) as a new forcing field.
101    
102    checkpoint54b_post
103    o add testreport "-j JOBS" option for parallel builds (tested and pretty
104       impressive on Altix and Opteron systems)
105    o diagnostics can now write NetCDF files through the mnc package
106    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
107    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
108    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
109      affects (truncation error) output of lab_sea & natl_box exp.: updated
110    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
111    
112    checkpoint54a_post
113    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
114    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
115    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
116    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
117      + internal_wave (shift in writing cg2d_ini_res)
118    checkpoint54a_pre
119    
120    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
121      - modified verification/lab_sea and natl_box_adjoint accordingly
122    
123    checkpoint54
124    checkpoint53g_post
125    o prepare splitting of thermodynamics: store convect.counter in common block
126    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
127      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
128    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
129    o new parameter "nShapS": allow to treat differently S from T (nShapT)
130    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
131    o restore adjointability
132    
133    checkpoint53f_post
134    o modifications that affect AIM experiment results (update output.txt):
135      - no advection of S at top interface Nr (pkg/generic_advdiff)
136      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
137    o AIM pkg:
138      - include stability function into surf.Flux derivative relative to Tsurf
139      - calculate clear-sky radiation & surface temp. change (for diagnostics)
140    
141    checkpoint53e_post
142    o merged cylindrical coord configuration
143    o added rotating_tank experiment
144    checkpoint53e_pre
145    
146    checkpoint53d_post
147    o faulks upgraded: re-generate output.txt that have changed:
148       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
149    o Added Bryan and Lewis, 1979, vertical diffusivity profile
150    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
151    o added Sadourny discretization of Coriolis
152      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
153      - re-enabled use of omega3 (useAbsVorticity)
154    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
155      vector-invariant equations
156      - note: does *NOT* yet use same variable visc. for no-slip BC's.
157    o recoded the lateral boundary conditions for non-hydrostatic w, this time
158      hopefully without new bugs
159      - still to do: biharmonic friction for non-hydrostatic w
160    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
161    o regenerated output for global_ocean_ebm (using -ieee)
162    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
163      of mom_common/
164      - simple re-arrangement of instructions within computing loop
165    checkpoint53d_pre
166    
167    checkpoint53c_post
168    o new version of coupler for AIM+thSIce and Ocean models
169     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
170     - land: change Evaporation of snow
171     - aim with thSIce: fix bug in snow-precip.
172    o changes to calc_gw.F
173     - bug fix for w^2 term near the bottom boundary
174     - (hopefully) improve the lateral slip boundary condtions for use with
175        partial/looped cells
176      - because the bug fix changes two verification experiments anyway (exp5
177        and plume on slope), change the lateral boundary condition from half slip
178        to the value of no_slip_sides
179    o ebm package wasnt quite up to the parallel task. Fixed that.
180    o Adjoint of EBM package + verification
181      * TLM OK
182      * ADM not sufficient accuracy yet (needs further testing)
183    
184    checkpoint53b_post
185    o Commiting new energy balance model to repository
186      * package is pkg/ebm
187      * verif. is verification/global_ocean_ebm
188      * references are in ebm_driver.F
189    C      * X. Wang, P. Stone and J. Marotzke, 1999:
190    C        Global thermohaline circulation. Part I:
191    C        Sensitivity to atmospheric moisture transport.
192    C        J. Climate 12(1), 71-82
193    C      * X. Wang, P. Stone and J. Marotzke, 1999:
194    C        Global thermohaline circulation. Part II:
195    C        Sensitivity with interactive transport.
196    C        J. Climate 12(1), 83-91
197    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
198    C        Destabilization of the thermohaline circulation
199    C        by atmospheric eddy transports.
200    C        J. Climate 7(12), 1870-1882
201    o Will need long integration testing.
202    checkpoint53b_pre
203    
204    o created pkg/mom_common in preparation for variable viscosity code
205    o renamed and split ini_mnc_io
206    o pkg/land: only liquid water can diffuse or run-off
207    o AIM using land: soil wetness availability account for snow
208    o added printMapIncludesZeros to EEPARMS namelist
209    
210    checkpoint53a_post
211    o restore TAMC compatiility for exf_constants.h
212      (no usage of _d in .h)
213    o Additional storing in KPP in an attempt to fix
214      TAMC problem with adjoint of KPP code.
215      (no success...)
216      Identical code works fine with TAF.
217    o Fixed verification/natl_box_adjoint experiments.
218      Initial conditions for Experiments 4 and 5 are now
219      set to "SEAICE_initialHEFF=0", which is more reasonable,
220      and hence gives results closer to that of Experiment 2.
221      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
222    
223    checkpoint53
224    o stable checkpoint with up to date adjoint
225      TLM tests only run for 1st grdchk at the moment. Its unclear if
226      this is a code problem or a problem with resetting code for g_
227      variables that is being autogenerated wrong.
228      Otherwise:
229       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
230       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
231         are both still in chaos following their security messes.
232    
233    checkpoint52n_post
234    o various build (mostly genmake2) changes including:
235      - ability to build/run more easily within Cygwin and MacOS X
236      - more complicated Makefiles with a stronger dependence on Gnu Make
237    o pkg/seaice modifications
238      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
239        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
240        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
241      - changed proxy for geostrophic velocity and updated
242        verification/lab_sea/results/* accordingly
243      - removed ADI dynamic solver from pkg/seaice
244      - replaced all occurrences of 1/CSTICE or 1/CSUICE
245        they caused a segmentation fault under certain circumstances
246      - removed unused field WATR
247    o bug fix in exf-package:
248      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
249         now reflect that.
250    o small fixes in the cal-package:
251      - set reference date to first of January for the 'model'-calendar
252      - failing of cal_CheckDate in cal_FullDate now actually results in a
253        warning
254    o small modifications in exf-package to increase flexibility:
255      - change climtempfreeze from a constant to a runtime parameter that
256        is specified in data.exf_clim (default = -1.9)
257      - introduce runtime parameter windstressmax (default = 2.0) that is
258        specified in data.exf
259    o fix in pkg/thsice:
260      - update Evap (Tsf changes) to be consistent with Latent heat flux
261      - maintain snow precipitation unchanged (even if Tsf >=0).
262     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
263    
264    checkpoint52m_post
265    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
266      this does not change any of the results, because myIter=0 in swfrac always
267      lead to jwtype=2 (the default anyway), but the call makes little sense
268      as a default
269    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
270    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
271      atmospheric model (AIM) to use it ; add a "slab ocean" component.
272    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
273    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
274    o extending useSingleCpuIO option to work with new exch2 I/O format
275      - old-style, missing-tile I/O is still accessible by defining CPP
276        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
277    o monitor package can write to NetCDF files and/or STDOUT
278    o fix re-definition bug in MNC_GRID_INIT_ALL()
279    o doc/api_reference added
280      - a framework for building an API Reference Manual using all
281        the "protex" comments embedded in the code
282      - see pkg/generic_advdiff, pkg/mnc for examples
283    o MNC:
284      - make myThid the last argument for all subroutines
285      - new default for the grid files: NO halos
286      - add useMNC and other run-time flags
287      - separate per-file-group handling of the unlimited dimension
288      - early initialization of MNC w/ flags read at the eeboot stage
289        and lookup tables set in initialize_fixed
290      - write all MNC output to a freshly-created directory
291    o thermodynamics sea-ice (thsice) is now tested with testreport.
292    o test exp. advect_cs: use the standard cs32 grid ; update output.
293    o Added functionality to grdchk:
294      pick global i,j,k position (or nearest wet) where to perform check.
295    
296    checkpoint52l_post
297    o new land formulation:
298      a) use ground enthalpy as prognostic variable to ensure exact
299         energy conservation.
300      b) account for water temperature and for latent heat of freezing
301         in all processes (rain, run-off, ground storage)
302      c) compute surface and ground temperature implicitly.
303    o aim_v23 modification for new land model:
304      a) Treat separately land / ocean / sea-ice surface fluxes
305         to allow implicit computation of land & sea-ice surface temp.
306      b) add snow precipitation.
307    checkpoint52l_pre
308    
309    o fix problem (when 1 tile is empty) in min/max monitor.
310    o fix bug in timeAve (u,vZetatave in common block)
311    o no restoring terms under ice for pkg/seaice
312    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
313    o bug fix for pkg/seaice pickups
314    o change MNC call locations and add coordinate attributes
315    o mask vorticity at the corner ; affects global_ocean.cs output
316    o fix ini_curvilinear_grid ; test CS experiments with mpi
317    o aim.5l_cs: modify sea-ice fraction input file ; update output
318    o exf: Adding simple range check routine for exf fields after read
319    
320    checkpoint52k_post
321    o removed top-level directory "diags"
322      - we migrated these functions to pkg/timeave a long time ago
323    o fixed bug introduced in pkg/monitor
324    o accuracy ctrlprec = 32 insuffient for gradient checks using
325      averaged fields (I/O via cost_averages)
326      -> use ctrl.h in active_file*.F to control I/O precision.
327    o paramter list of CALL ADTHE_MAIN_LOOP
328    o added initial do_the_model_io to ecco
329    o set all ...Freq to zero after cost_final
330      taveFreq, dumpFreq, pChkptFreq
331    o MAIN and ECCO differentiability restored
332    
333    checkpoint52j_post
334    o fix nchklev in tamc.h for global_ocean...
335    o Bringing flow and store directives up-to-date
336    o Really weird thing!
337      call do_the_model_io from the_main_loop with parameters
338      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
339      TAF places a faulty re-call of initialise_varia
340      after cost_final call which should not be there!
341    checkpoint52j_pre
342    
343    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
344      error messages
345    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
346    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
347      debug output
348    o modfied mdsio_writefield.F to handle non-global files under exch2
349    o update AIM Cubed-Sphere exp (aim.5l_cs):
350      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
351    o update AIM Equatorial Channel exp:
352      use standard aim_v23 pkg and change the SST fields to be more realistic.
353    o globalFile now works with exch2
354    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
355      mon_vort3.F to make exch2 friendly with >1 tile per cube face
356    o limit timeave output for hi-res integrations
357    
358    checkpoint52i_post
359    o removed CPP_EEOPTIONS.h from verification/*/code
360    o updated the tiling for global_ocean_pressure
361    checkpoint52i_pre
362    
363    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
364      the old pkg/aim).
365    
366    checkpoint52h_pre
367    o shortened offending lines in exch2_send_rx?.template
368    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
369    o genmake2: add build & execute test for NetCDF code
370    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
371      old grid files, moved CPP_EEMACROS.h to pkg/exch2
372    o added useSingleCPUIO flag to monitor.F and mon_out.F
373    o added temporary hack for sea-ice dynamics on the cube:
374      metric terms are ignored and it is assumed that
375      there is no sea-ice on cube faces 1, 2, 4, and 5.
376    
377    checkpoint52f_post
378    o added exch2 cube routines to pkg/exch2
379    o modified hs94.cs-32x32x5 to use it
380    o added new grid files to hs94.cs-32x32x5
381    checkpoint52f_pre
382    
383    checkpoint52e_post
384    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
385      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
386    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
387      to work with implicit vertical advection and AB ;
388    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
389    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
390     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
391    checkpoint52e_pre
392    
393    o fix bug in impldiff when Nr=1 or Nr=2.
394    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
395    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
396    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
397      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
398    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
399    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
400    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
401    
402    checkpoint52d_post
403    o re-tiled many expts to allow comparison in multi-processor mode
404      - updated output accordingly
405      - changed hs94.128x64x5 to use intial T from file rather than use the
406        random number generator
407    o add infrastructure in model routines for fizhi and gridalt packages
408    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
409    o changes to permit hi-res, cubed-sphere, configuration
410      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
411      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
412      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
413        of surface winds for the cube
414      (A verification experiment, based on global_ocean.cs32x15, but with
415       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
416       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
417       complete with example surface forcing files and matlab scripts to look
418       at the output and compare it with that of global_ocean.cs32x15.)
419    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
420       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
421       to conform to the common rule.
422    o check-in the first version of the coupler + interfaces for multi-components
423       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
424       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
425       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
426       - ocean and atmos. share the same horizontal grid (no interpolation).
427       - exchanges between component and coupler is done in forward_step
428    o new verification experiment, cpl_aim+ocn:
429       coupled ocean - AIM atmosphere on cs32 grid.
430    
431    checkpoint52d_pre
432    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
433    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
434    
435    checkpoint52c_post
436    o Fixing OPTIONS files for use of exf:
437      - ALLOW_ECCO not needed
438      - ECCO_CPPOPTIONS.h should not be included from
439        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
440        as has been the case in the past
441      - All cal/exf related options are currently set in
442        single header file. Should remain so until we
443        agree on a consistent new policy.
444    o Removed all CPP options for cal package.
445      cal has no more CPP options.
446    o modified STOREs in GAD_ADVECTION
447    o corrected key comp. for passkey
448    
449    checkpoint52b_post
450    o new version: "thsice" of thermodynamic sea-ice pkg:
451     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
452     - modify fluxes but do not change theta directly;
453     - light cleaning of bulk_force pkg (still needed with thsice).
454     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
455       + output_thsice.txt to test thsice & bulk_force pkgs.
456    o put back grid & coriolis monitor output.
457    checkpoint52b_pre
458    
459    o call "do_the_model_io" at the beginning (=> dump initial state)
460    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
461    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
462      (need info on NUMBER_OF_PTRACERS)
463    o missing PTRACERS headers in some routines
464    o default tamc.h in pkg/autodiff supposed to crash
465      to ensure proper customization
466    
467    checkpoint52a_post
468    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
469      - moved surfaceTendencyTice from pkg/seaice to main code
470      - subroutine FREEZE_SURFACE now limits only surface temperature
471        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
472        => new output.txt for global_ocean.cs32x15 & global_with_exf
473      - keep the old version of FREEZE for backward compatibility;
474        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
475      - corresponding modifs for TAF directives
476    o added surface flux output variables to TIMEAVE_STATVARS
477    o time-averaged output for pkg/ptracers
478    o fix problem with ECCO-related divided adjoint
479      snapshot file was missing some ad-variables,
480      but no warning issued by TAF
481    
482    checkpoint52a_pre
483    o some bug fixes for #undef REAL4_IS_SLOW
484    
485    checkpoint52 = ecco_c52_e35
486    o after testing adjoints of checkpoint51u_post
487    
488    checkpoint51u_post
489    o this is the post-merge tag of the ecco-branch
490      (needs another clean checkout and re-testing)
491    o various natl_box_adjoint configs and results
492      but no input fields
493    o obcs adjoint not yet merged!
494    o adding ECCO global 1x1 and 2x2 degree configs
495    o updated/extended some store directives for seaice
496    o pkg/ecco now containes ecco-specific part of cost function
497    o top level routines the_main_loop, forward_step
498      supersede those in model/src/
499      previous input data.cost now in data.ecco
500      (new namelist ecco_cost_nml)
501    o in ctrl/ cleaned some cross-dependencies and updated CPP options
502    
503    checkpoint51t_post
504    o this is the pre-merge tag of the ecco-branch
505    
506    checkpoint51s_post
507    o cleanup: removed various obsolete #define-s
508    o pkg/grdchk
509      - renamed 'ph-grd 3' to 'grad-res'
510      - merged from ecco-branch
511        (remaining bug fixes for obcs gradient checks)
512      - additional high-precision output for testreport
513        (grep for 'precision_grdchk_result')
514    
515    checkpoint51r_post
516    o cleaned up or removed CPP_OPTIONS.h files
517    o updated results for some of the tests to reflect the new
518      optfiles (-ieee: -O0 instead of -O3)
519    
520    checkpoint51q_post
521    o cd_code:
522      - moved cd_scheme.F -> cd_code_scheme.F
523      - separate read_checkpoint from cd_code_ini_vars.F
524      - separated cd_code part from write_checkpoint
525      - updated AD_SOURCE, generated .flow
526      - added CD_CODE_VARS.h to the_main_loop
527      - Moving cd_code specific store dir.s to pkg/cd_code
528    o ctrl package totally restructured
529      - pack/unpack now optional and decoupled from
530        xx_/adxx_ I/O
531      - ctrl_pack/unpack cleaned
532        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
533      - confined inclusion of AD_CONFIG.h to where necessary.
534    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
535    
536    checkpoint51p_post
537    o create initial cd_code package
538      - WARNING: the initialization of fields within packages
539        is broken because INI_FIELDS (where READ_CHECKPOINT is
540        called) is called *before* PACKAGES_INIT_VARIABLES.
541        This seems to be backwards since
542        1) its important to initially zero the entire field including
543           the "halo" region
544        2) zeroing needs to be done *before* reading pickup info
545           and the pickup call might or might not happen in any
546           particular run
547      - this needs an overhaul for R2
548    o cleanup verification/*/code/GMREDI_OPTIONS.h
549    o cleanup testreport
550    
551    checkpoint51o_post
552    o bringing AD-related verif's up to date with genmake2
553      - carbon/
554      - global_ocean.90x40x15/
555      - hs.94.1x64x5/
556      - (front_relax/ )
557    o (more) consistent directory structure for AD-related verif.'s
558    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
559    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
560    o bug fix in find_alpha.F for MDJWF:
561      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
562        change rho -> rho-rhoConst
563      - replace call find_rho to find_rhonum
564    o initialisation of rFlx extended to full array (required by TAF)
565      and shifted to thermodynamics
566    o removed PTRACERS.h in ptracers routine
567    o added surfacetendencyPtr to S/R parameter list pracers_forcing
568    o Correcting initialisations for fVerU, fVerV.
569    o helping TAF to recognize dependency on kUp for
570      fVerU, fVerV
571    o Replacing delZ by delR in pkg/ctrl/
572    checkpoint51o_pre
573    
574    o undid all of cp51 pending some cleanups and discussion
575    o added the [#include "AD_CONFIG.h"] statement to all files that need
576       it for adjoint/tl #defines
577     o re-worked the build logic in genmake2 to support AD_CONFIG.h
578     o removed tools/genmake since it no longer works
579    
580    checkpoint51n_post
581    o modifications to make FREEZE flux visible to pkg/kpp
582      - moved surfaceTendencyTice from pkg/seaice to main code
583      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
584      - subroutine FREEZE now limits only surface temperature
585        (this means new output.txt for global_ocean.90x40x15,
586         global_ocean.cs32x15, and global_with_exf)
587    o added surface flux output variables to TIMEAVE_STATVARS
588    
589    checkpoint51n_pre
590    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
591    o added [#include "AD_CONFIG.h"] to all files that use the following
592      defines:
593      - ALLOW_ADJOINT_RUN
594      - ALLOW_TANGENTLINEAR_RUN
595      - ALLOW_ECCO_OPTIMIZATION
596    
597    checkpoint51m_post
598    o incorporating changes to get TAMC/TAF working in genmake2
599      - added new TAMC/TAF targets to the Makefile
600      - various cleanups related to package handling
601      - these changes should have no impact on the forward model
602    
603    checkpoint51l_post
604    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
605     - faster algorithm for cal_addtime.F
606     - higher precision arithmetic, where needed
607     - pkg/exf *startdate variables changed from calendar date to
608       model integration time
609    
610    checkpoint51l_pre
611    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
612    o enable to apply restoring on S & T only in a latitude band.
613    o update output (external_forcing_surf modif. change truncation errors)
614       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
615    
616    checkpoint51k_post
617    o change default to: useNHMTerms=.FALSE.
618     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
619       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
620     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
621        exp1, ideal_2D_oce
622     - change data file of oceanic exp (leave the results unchanged for now)
623       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
624    o set gravitySign automatically according to the vertical coordinate used
625      (and change sign: back to "logical" value: +1 when R increases downward)
626    o added an include barrier to the default CPP_OPTIONS.h and
627      removed the #include "PACKAGES_CONFIG.h" from it
628    o fix a bug in mom_fluxform (from chk51j_post)
629    
630    checkpoint51j_post
631    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
632    o adjusted some flow directives (dynamics, thermodynamics)
633    o added cubed-sphere case to test cost function
634    o heckpoint_lev?_directives.h now include
635      pkg-specific directives, whenever those are enabled.
636    o Moving pkg-specific flow directives to corresponding pkg
637      Moving pkg-specific differentiation list to corresponding pkg
638      Moving pkg-specific checkpoint-lev storing to corresponding pkg
639      ---> conventions are
640           - pkg_ad.flow
641           - pkg_ad_diff.list
642           - pkg_ad_check_lev?_dir.h
643    
644    checkpoint51i_post
645    o merge of the branch-genmake2
646      - knowingly breaks the older genmake
647      - automatic generation of all ALLOW_${PKG_NAME} defines
648      - new testreport supersedes older testscript
649    o large number of package inclusion and header cleanups
650    checkpoint51i_pre
651    
652    o new output for adjoin of global ocean vector invariant
653    o fix for checkpoint of thermodynamic seaice and bulk_force
654    o Steph gchem various cleanups
655    
656    checkpoint 51h_pre
657    o fixed some single quotes
658    o modify gchem pkg to be more versatile
659    o modifications to clean up dic pkg
660    o add pkg/cfc
661    
662    checkpoint51g_post
663    o provide links for ARPACK and ADM*TLM
664    o start removing verification/vero/
665    o update AD-related stuff
666      (in particular some IF-statements in model/src/ routines)
667    o adding to verification/global_ocean.90x40x15/ adjoint of
668      vector invariant setup
669    
670    checkpoint51f_post
671    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
672    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
673      of tracer Green's fucntions for ocean inversion project.
674    
675    checkpoint51f_pre
676    o Added on-the-fly spatial interpolation capability
677        "USE_EXF_INTERPOLATION" to pkg/exf.
678      - This is a temporary Cartesian-grid hack until
679        the super-duper ESMF coupler becomes available.
680      - See verification/global_with_exf/README for usage example.
681      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
682        flags and modified pkg/seaice accordingly.
683    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
684        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
685        non-local transport term.
686    
687    checkpoint51e_post
688    o pkg/mom_vecinv:
689      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
690      - add time-ave diagnostic of vorticity advection.
691    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
692    o atmospheric geopotential: - include water vapor effect;
693                                - use p^kappa in p* scaling.
694    o land pkg: read initial state from files.
695    o AIM : add stratospheric drag in the upper level
696    
697    checkpoint51d_post
698    o change function ILNBLNK (=> last non-blank char.) to return zero
699      (instead of the string length) when the string. char is empty
700    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
701    o modif's to restore TAMC compatibility
702      - avoid "_d" constructs in PARAMETER declarations
703      - avoid interrupting lines by comment lines
704    o Use cluster local disks for purely local I/O
705      vs. globally visible disks needed for ctrl stuff
706      (merged from ecco-branch)
707      - new active_file_loc... and mdsio_..._loc routines
708      - affected packages: autodiff, ctrl, grdchk, mdsio
709    
710    checkpoint51c_post
711    o introducing integer flag debugLevel
712      - debLevZero: suppress all output
713      - debLevA: standard
714      - debLevB: equivalent to current debugMode=.TRUE.
715    o introducing pathname variable mdsioLocalDir for mdsio
716      that can be specified at runtime
717      (relevant for cluster I/O to local disk)
718    `
719    >>>checkpoint51b_post
720    adjoint of ptracers
721    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
722    o extended state in checkpoint_lev?, etc.
723    o alternative ctrl/cost with tr1 or ptracer
724    o new comlev1_bibj_ptracers
725    o new ptracers.flow
726    o made ptracers_forcing same as external_forcing_s
727    o added verification for adjoint with ptracers
728      - adm. grdchk fail so far
729      - tlm. grdchk OK
730      - checked tapelev/comlev recomputations: OK
731    <<<checkpoint51b_pre
732    
733    checkpoint51a_post
734    o added code for biogeochemistry package
735      - new pkgs: dic, gchem
736      - new subroutine in ptracers
737    o modify code for biogeo packages
738      - in model/src and pkg/ptracers
739    
740    checkpoint51
741    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
742      - autodiff, ctrl, exf, grdchk, seaice
743      kept separate packages
744      - cost, ecco, obcs
745    o updating verification/internal_wave, verification/lab_sea
746      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
747    
748    checkpoint50i_post
749    o Preparing next differentiable checkpoint and sync
750      of MAIN vs. ecco-branch
751      - 1st step: this one is differentiable
752      - 2nd step: next(! not this) checkpoint will have updated packages
753                  from ecco-branch)
754    
755    checkpoint50h_post
756    o new package "land": provide surface BC for AIM.
757    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
758    o AIM: use true log-P extrapolation for near surface temp (= as in
759        F.Molteni paper) ; update aim.5l_cs output.
760    o New variable in PARM03 for more flexible pickups
761    o somewhat cleaned package initialisation sequence for
762      ctrl/ cost/ ecco/ in packages_... routines
763    
764    checkpoint50g_post
765    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
766      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
767      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
768        made the default because of faster convergence than ADI
769    
770    checkpoint50f_post
771    o exf totally restructured
772      - replaced all exf_set_ routines by one generic exf_set_gen.F
773        and made sure it's still differentiable
774      - split exf_getffields.F into new exf_bulkformulae.F
775      - exf_inscal_/exf_outscal_ suffixes consistent with field names
776      - updated adjoint/makefile and relevant verif. accordingly
777    
778    checkpoint50f_pre
779     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
780          + change Evap over land. (update aim.5l_cs output)
781     o added missing .cvsignores and made uniform across expts
782     o changed configuration of tidal_basin_2d expt
783     o added pkg/debug functions for tracing code in fatal crashes
784     o tidied pkg/monitor to use MONITOR_OPTIONS.h
785     o new fn in pkg/monitor to stop model if solution grows too big
786     o removed lots of single quotes from comments
787    
788    checkpoint50e_post
789    o make KPP work with PTRACERS
790     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
791       nearly a copy of kpp_transport_s
792     - there is no analogue to SurfaceTendencyS, so I have to use
793       gPtr(of the surface layer) instead
794    o add a new platform SunFire+mpi (SunFire 15000) to genmake
795    checkpoint50e_pre
796    
797    checkpoint50d_post
798    o change kpp output from multiple-record state files to single-record state
799      files analogous to write_state.F
800    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
801      analogous to the cg2d-related output.
802    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
803      so that writing to internal file fn (with length 512) fails.
804    checkpoint50d_pre
805    
806    checkpoint50c_post
807    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
808    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
809    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
810    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
811    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
812    
813    checkpoint50c_pre
814    Merging from release1_p13:
815    o bug fix for pkg/seaice dynamic solver
816    o Added SEAICE_initialHEFF to pkg/seaice
817    
818    checkpoint50b_post
819    o store u*,v* in gU,V instead of in guNm1,gvNm1
820    o in order to put the momForcing out of the Adams-Bashforth:
821      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
822      to timestep.F
823    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
824    o re-generate output for highly sensitive test-exp:
825       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
826    
827    checkpoint50b_pre
828    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
829    o corrected CPP option mismatch in exf_Bulk... functions for case
830      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
831    
832    checkpoint50a_post
833    o Bug fix for merging between c50 and KPP.
834      ikey was passed from thermodynamics to kpp_calc via
835      common block rather than being recomputed in kpp_calc,
836      in contradiction with new key itdkey.
837      New key ikppkey created, and tamc.h headers updated.
838    
839    checkpoint50
840    - 2nd step of merge with ecco-branch:
841      merge changes in ecco-branch back into main trunk
842    - bug fix in find_alpha
843    - more storing in gmredi_calc_tensor.F, kpp_routines.F
844    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
845    - merged some sliced AD support routines
846    
847    checkpoint49
848    merged from ecco-branch:
849    o exf:
850      - Enable initialisation of forcing fields to constant
851        (runtime) values.
852      - in exf_getffields.F
853        Reduce i-/j-loop to interior domain, discarding overlaps.
854        That also fixes wrong TAF-key computations for key_1, key_2
855        with bulf formulae.
856      - exf_init.F modify #ifdef for exf_init_evap
857      - exf_getffieldrec.F, ctrl_getrec.F
858        The following INT-usages are not safe:
859          fldsecs  = int(fldsecs/fldperiod)*fldperiod
860          fldcount = int(fldsecs/fldperiod) + 1
861        and were modified.
862    o autodiff: checkpoint_lev...
863      - updated storing for bulk formulae (some arrays were missing)
864      - added state for seaice package
865      - synchronized with main branch
866    o DIVA:
867      Modif.s in
868      - the_main_loop.F
869      - the_model_main.F
870      and added cost_final_restore.F cost_final_store.F
871      o With these changes, it is possible to fully separate
872        the first forward run to compute the cost function (mdthe_main_loop)
873        and adjoint runs over individual DIVA intervals (adthe_main_loop)
874        into separate model executions.
875        This enables better tuning of DIVA to given queue sizes.
876      o Loss of cost function value in consecutive DIVA runs is
877        fixed by storing to 'costfinal' file.
878      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
879        beginning/end of adjoint integration is accounted for.
880      The current changes apply to TAF-1.4.26.
881      TAF has one remaining bug, requiring one manual change
882      (see MITgcm manual).
883    o cal: synchronized between MAIN and ecco-branch
884    
885    checkpoint48i_post
886    o Changes to restore differentiability of code w.r.t. previous tag
887      (mostly adding new routines to make list and replacing
888      pressure by totPhiHyd).
889    o Updated and merged grdchk package
890      - has both ADM and TLM checks
891      - works for single- and multi-proc.
892      - output cleaned
893      - worked successfully for parallel DIVA
894    o genmake:
895      - Adding -platform=SP4
896      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
897    o Modif. for DIVA:
898      ctrl_unpack should not be called in intermediate DIVA interval.
899      (similar thing would apply for active files such as
900      tbar, sbar, psbar, which should not be reinitialised;
901      only relevant for ecco-branch)
902    
903    checkpoint48h_post
904    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
905    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
906    o Added SEAICE_initialHEFF to pkg/seaice
907    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
908    
909    checkpoint48g_post
910    --- EOS:
911    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
912      store total Potential in totPhyHyd for diagnostics & EOS.
913    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
914    --- Pressure/geopotential gradient:
915    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
916    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
917      ( changes results of global_ocean_pressure )
918    o NLFS + z-coord.: add eta*Rho' contribution.
919    o accurate phiHyd when using interface-W at the middle between 2 centers
920     ( changes results of ideal_2D_oce )
921    o includes r* 2nd term in potential gradient.
922    
923    checkpoint48f_post
924    Merging from release1_p12:
925    o Modifications for using pkg/exf with pkg/seaice
926      - improved description of the various forcing configurations
927      - added basic radiation bulk formulae to pkg/exf
928      - units/sign fix for evap computation in exf_getffields.F
929      - updated verification/global_with_exf/results/output.txt
930    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
931      (SBO) core products, including oceanic mass, center-of-mass,
932      angular, and bottom pressure (see pkg/sbo/README.sbo).
933    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
934      to avoid negative values in shallow regions.
935      - updated verification/natl_box/results/output.txt
936      - updated verification/lab_sea/results/output.txt
937    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
938    o Added useSingleCpuIO option (see PARAMS.h).
939    o Updated useSingleCpuIO option in mdsio_writefield.F to
940      work with multi-field files, e.g., for single-file pickup.
941    o pkg/seaice:
942      - bug fix in growth.F: QNET for no shortwave case
943      - added HeffFile for specifying initial sea-ice thickness
944      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
945    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
946      kpp_transport_t.F, forward_step.F, and the_main_loop.F
947    o pkg/seaice:
948      - adjoint-friendly modifications
949      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
950    
951    checkpoint48e_post
952    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
953    o dynamics: change definition of computational domain & adapt mom_fluxform
954      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
955    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
956        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
957        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
958        global_ocean.90x40x15 global_with_exf global_ocean_pressure
959        inverted_barometer solid-body.cs-32x32x1
960      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
961    
962    checkpoint48d_post
963    o in preparation for r*:
964     a) use pre-computed gradient of hydrostatic potential:
965        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
966     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
967        => affects results of glob_oce_pressure (different truncation error)  
968      update output.txt of ideal_2D_oce & global_ocean_pressure
969    
970    checkpoint48d_pre
971    o in preparation for r*:
972      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
973      pass the 2 comp. of the grad. as arguments to momentum S/R.
974      but for the moment, only used if it does not change the results.
975    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
976    
977    checkpoint48c_post
978    Modifications in treatment of initial flux forcing controls
979    to avoid extra storing of flux fields.
980    
981    checkpoint48c_pre
982    o Added tidal_basin_2d experiment (currently 1D!)
983    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
984    
985    checkpoint48b_post
986    o r* coordinate added in #ifdef NONLIN_FRSURF block.
987     (modification to pressure gradient not yet implemented)
988    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
989      (for U & V) that are used for vertical advection of momentum.
990    
991    checkpoint48a_post
992    o In preparation for r*, use temp. array to compute vertical transport
993       in flux-form momentum pkg. => change results of few test-exp.
994      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
995                        lab_sea, natl_box & plume_on_slope
996    
997    checkpoint48
998    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
999    
1000    checkpoint47j_post
1001    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1002    o moved adexch from forward_step to addummy_in_stepping
1003    o added exch in ctrl_map_...
1004    o aveFreq.=0. at end of cost_final to avoid overwrite in
1005      reverse checkpointing loop
1006    o Yet more changes in gmredi:
1007      * adgmredi_calc_tensor
1008        avoiding all recomputation of gmredi_slope_limit
1009      * adgmredi_x/y/rtransport
1010        added flag for excessive storing to avoid recomp. of
1011        u/v/rtans, dTdx/y/z
1012        -> this is not really necessary and very memory-consuming
1013      * adgmredi_slope_psi:
1014        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1015      * gmredi_slope_limit
1016        re-activated full calculation of taperfct for case 'ac02'
1017    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1018    
1019    checkpoint47i_post
1020    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1021    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1022      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1023    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1024    o gmredi: fix few bugs.
1025    
1026    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1027    This will be a good checkpoint to plug into the ecco-branch.
1028    o few modif.'s to get latest version adjointed
1029      (mainly kick out code in ini_linear_phisurf)
1030    o modif's to run adjoint with exactConserv
1031    o case GM_BOLUS_ADVEC should be cleaned
1032      S/R gmredi_slope_psi should be cleaned
1033    o verification/carbon now has exactConserv=.TRUE.
1034    
1035    checkpoint47g_post
1036    o time-average AIM output: becomes independent from statvars time-average
1037      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1038    o After TAF bug fix:
1039      Tested adjoint of gmredi package.
1040      Tests were done with checkpoint47 rather than with latest
1041      checkpoint47f_post since the latter is broken for the adjoint
1042      verification/carbon/ contains both ADM and TLM gradient checks.
1043    Here they are, before they get changed/lost/stolen.
1044    Mostly modif.'s to fix numerical sensitivities.
1045    Gradient checks OK for
1046    - GM_taper_scheme:
1047      * clipping
1048      * ac02
1049      * linear
1050      * glw91
1051      * dm95
1052      * ldd97
1053    - GMREDI_OPTIONS:
1054      * GM_VISBECK_VARIABLE_K
1055      * GM_NON_UNITY_DIAGONAL
1056      * GM_EXTRA_DIAGONAL
1057      * GM_BOLUS_ADVEC
1058    in conjunction with data.gmredi parameters to be checked in
1059    in a few minutes under verification/carbon/code/
1060    
1061    checkpoint47f_post
1062    Merging from release1_p10:
1063    o modifications for using pkg/exf with pkg/seaice
1064      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1065        and SEAICE_EXTERNAL_FLUXES
1066      - pkg/exf CPP options EXF_READ_EVAP and
1067        EXF_NO_BULK_COMPUTATIONS
1068      - usage examples are Experiments 8 and 9 in
1069        verification/lab_sea/README
1070      - verification/lab_sea default experiment now uses
1071        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1072    
1073    checkpoint47e_post
1074    o created a tag prior to creating a branch
1075    
1076    checkpoint47d_post
1077    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1078      at the bottom boundary had an erroneous half slip boundary condition
1079    o added bottom drag and no slip boundary condition capabilities to
1080      oceanic pressure coordinates code
1081    o added new verification experiment global_ocean_pressure, this experiment is
1082      also described in the tutorial section of the manual
1083    checkpoint47d_pre
1084    
1085    checkpoint47c_post
1086    o Added a verification experiment for a global cubed-sphere ocean run
1087      -  verification/global_ocean.cubed32x32x30
1088      -  uses pkg/therm_seaice and pkg/bulk_forcing
1089    
1090    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1091    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1092      when using P-coordinate; only implemented for atmospheric config.
1093    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1094      NOTES: requires option NONLIN_FRSURF to be "#define".
1095    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1096    
1097    checkpoint47b_post
1098    Merging from release1_p9:
1099    o pkg/seaice
1100      - removed GOTO's and added taf directives
1101      - double precision constants to reduce the g77 (Linux)
1102        to F77 (SGI) differences reported in release1_p8
1103    o tools/genmake
1104      - added SGI options
1105    o verification/testscript
1106      - updated to that of checkpoint47a_post
1107    o verification/global_ocean.90x40x15/input/eedata
1108      - modified for SGI f77 compatibility
1109    o verification/lab_sea
1110      - added description of sea-ice model
1111      - added missing matlab routines
1112      - added test of thermodynamics parallelization
1113    
1114    checkpoint47a_post
1115    o new pkg: aim_v23
1116     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1117       for now, keep the same surface forcing as before.
1118     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1119     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1120     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1121    o add diagnostic of surface correction term in monitor output
1122    
1123    o bulk_force and therm_seaice
1124    - Two packages:  bulk_force (Bulk forcing)
1125      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1126    - Earlier integration from Stephaine Dutkiewicz
1127      and Patrick Heimbach.
1128    - Two ifdef statements for compile time,
1129       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1130    
1131    checkpoint47
1132    differentiable version of checkpoint46n_post
1133    o bug fix in quasihydrostaticterms
1134    o * "clean" adjoint code (in terms of extensive recomputations)
1135        can now be obtained for all GMREDI options (i.e. for
1136        - GM_VISBECK_VARIABLE_K
1137        - GM_NON_UNITY_DIAGONAL
1138        - GM_EXTRA_DIAGONAL
1139        - GM_BOLUS_ADVEC )
1140      * However, wrong gradient check problem remains unsolved.
1141      * New CPP options have been introduced for different
1142        tapering schemes
1143    o external_fields_load now part of differentiation list
1144    o pressure needs multiple storing;
1145      would be nice to have store_pressure at beginning or
1146      end of forward_step, e.g. by having phiHyd global (5-dim.)
1147      (NB: pressure is needed for certain cases in find_rho,
1148      which is also invoked through convective_adjustment).
1149    o recomputations in find_rho for cases
1150     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1151    o #define ATMOSPHERIC_LOADING should be differentiable
1152    o ini_forcing shifted to begining of initialise_varia
1153    o Incorporating QNVS line search routines into MITgcm
1154      (this is separate code, and therefore not under pkg)
1155      lsopt/, optim/
1156    o Updated verification/carbon/
1157      - #define GM_VISBECK_VARIABLE_K
1158      - GM_taper_scheme    = 'ldd97'    
1159    
1160    checkpoint46n_post
1161    Merging from release1_p8:
1162    o verification/natl_box:
1163      updating new external_fields_load routine
1164    o New package: pkg/seaice
1165      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1166      The sea-ice code is based on Hibler (1979-1980).
1167      Two sea-ice dynamic solvers, ADI and LSR, are included.
1168      In addition to computing prognostic sea-ice variables and diagnosing
1169      the forcing/external data fields that drive the ocean model,
1170      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1171      The implied surface heat flux is then stored in variable
1172      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1173      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1174      non-local transport term.  Because this call precedes model
1175      thermodynamics, temperature under sea-ice may not be "exactly" at
1176      the freezing point by the time theta is dumped or time-averaged.
1177      N.B.: fairly large differences in accuracy occur across
1178            different platforms/compilers; comparison between
1179            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1180            generated output gives:
1181       T           S           U           V
1182      C D M    c        m  s        m  s        m  s        m  s
1183      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1184      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1185      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1186    
1187      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1188    o GAD:
1189      - generated new common blocks to account for call of
1190        same gad routines with differing traceridentities
1191        (needed to modify tracerIdentity indices in GAD.h)
1192      - generated separate common blocks for case useCubedSphereExchange
1193        (Department of Futurology)
1194      - parameter lists to gmredi_?transport: added tracerIdentity
1195      - added new key indices to tamc.h
1196    o external_fields_load:
1197      - added this routine to TAF list
1198      - needed to make some common blocks global and additional storing
1199        along the same lines as exf package (checkpoint_lev?_directives.h)
1200    o exf:
1201      updated external forcing package
1202      - bug fixes carried over from ecco-branch
1203        (missing OBCS_OPTIONS.h in two routines)
1204      - enable easy to use "no forcing".
1205      - added exf I/O for atmospheric loading
1206      - added exf I/O for runoff data
1207      - transfered scaling between exf <-> MITgcm to exf namelist
1208    o Adding new verification experiment global_with_exf.
1209      This verification experiment is almost identical to the
1210      global_ocean.90x40x15 experiment, except that it uses
1211      the exf (and cal) package instead of the
1212      external_fields_load routine (cf README file).
1213    
1214    checkpoint46m_post
1215    o modified testscript to return -- when there are no lines of "%MON" output
1216    o added new flag "quasiHydrostatic" for QH mode
1217      and new routine quasihydrostaticterms()
1218    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1219      New routine: mom_u_coriolis_nh()
1220    o fixed sign of non-hydrostatic metric terms in u and v equations.
1221      Depend on correct sign of gravitySign.
1222    o added work.pc* to .cvsignore in aim directories using ifc
1223    o introduced flag for controllin non-hydrostatic metric terms
1224  o removed gravitySign from PARM04  o removed gravitySign from PARM04
1225  o switched to g77/ifc from pgf77 in aim experiments  o switched to g77/ifc from pgf77 in aim experiments
1226    

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