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revision 1.59 by jmc, Fri Feb 8 22:41:59 2002 UTC revision 1.391 by heimbach, Mon Nov 22 21:12:48 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 exf_check_range:
7      * default changed to .TRUE.
8      * will check values for niter0 if debLevA, every timestep if debLevB
9      * STOP in exf_check_range if 'out of range'
10      * range chosen generous to allow for potential extema
11      TBD: a version with stricter range
12           permitted range would be runtime parameters
13    o GMredi:
14      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
15      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
16      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
17    o GCHEM:
18      - move call to GCHEM_FORCING_SEP, so that it is now called before
19        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
20      - introduced a useGCHEM runtime flag and applied it everywhere.
21    o small cleaning of exch2: remove files that are also in eesupp/src
22    
23    checkpoint56
24    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
25    o mnc: cleanup "full" files--fixes out-of-memory problem
26    o ECCO-GODAE
27      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
28      * fully merged and updated from SIO code
29        windstress sign change affects
30        - exf_inscal_[u/v]stress
31        - sign of xx_tau[u/v] adjustments
32        - signs in cost_scat
33      * ctrl_get_gen: avoid update of tau[u/v] for first few days
34      * natl_box_adjoint updated and compressed
35      * 2-level checkpoint switch added
36        (tested in EXP. 1 of natl_box_adjoint)
37      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
38    o SVD
39      * first complete, non-hacked version for SVD calculations
40      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
41        performed via direct access files admtlm_vector.it????
42        (via ctrl_[un]pack)
43      * optimcycle is used for ARPACK iteration counter
44        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
45      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
46        and add linear transforms where necessary
47      * controls are initial/final SST, SSS (can be extended; need to check
48        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
49    o mdsio: filename info to both stderr, stdout
50    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
51      from sign change
52    
53    checkpoint55j_post
54    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
55      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
56    o add consistent build directories and .cvsignore files to verification
57    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
58    o make all subroutines 30 or less characters in length for certain older
59      compilers to work (a thorough search only turns up two routines in
60      pkg/ptracers)
61    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
62      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
63    
64    checkpoint55i_post
65    o change arrays for total vertical diffusivity (2.D if explicit,
66      3.D if implicit) ; each ptracer uses its own background value.
67    o added mnc/NetCDF output capability to ocn_compon_interf
68      - added bits to verification/cpl_aim+ocn so that it can run on
69        ITRDA and other clusters without the mpirun "-wd" option
70    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
71      configuration
72    o give MNC the ability to create additional files rather than
73      exceeding a specified file size limit "MNC_MAX_FILESIZE"
74      - the default is just less than 2GB which is a practical limit
75        on many systems
76    o Compute the non-local term using either KPP vertical diffusivity (=default)
77       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
78    
79    checkpoint55h_post
80    o add verification test "vermix"
81    o remove all the *_ioinc flags and replace with the single global
82      outputTypesInclusive flag
83    o allow to set a vertical profile of vertical diffusivity for T & S
84    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
85    o useMNC moved from data.mnc to data.pkg
86    
87    checkpoint55g_post
88    o Renaming carbon AD experiments to comply with testreport conventions
89    o Updating adjoint of Held-Suarez hs94.1x64x5
90    o Fixing directives for non-ECCO forward_step, after ECCO directives
91      have been fixed to avoid recomp. of do_oceanic_phys
92      Works well for global_ocean.90x40x15,
93      but recomp. issue remains for carbon
94    o Updating adjoint output for natl_box_adjoint after
95      pkg/ecco has been modified (see taga c55d_post)
96    
97    checkpoint55f_post
98    o rename to timeave_init_fixed
99    
100    checkpoint55e_post
101    o some delicate re-shuffle of store directives to avoid one
102      extra call of do_oceanic_physics
103      affects ecco_the_main_loop.F, do_oceanic_physics.F
104      checkpoint_lev1_directives.h
105    o NB: this may break global_ocean adjoint temporarily,
106      but it is clear how to fix it. Will do later, need this now.
107    
108    checkpoint55d_post
109    o ECCO specific cost function terms (up-to-date with 1x1 runs)
110    o ecco_cost_weights is modified to 1x1 runs
111    o modifs to allow observations to be read in as
112      single file or yearly files
113    o enable to read exf forcing fields as either
114      single file or yearly files (flag useExfYearlyFields)
115    checkpoint55d_pre
116    
117    o switch between 2-level and 3-level checkpointing
118    o add ability of MNC to write local and "partial" (eg. 2D slices where
119      the full 3D field is never actually stored) arrays to NetCDF files
120      with the correct (that is, the complete multi-dimensional) set of
121      array indicies
122      - used in mom_vecinv() to write the diagFreq output
123      - tested (demonstrated) in verification/aim.5l_cs
124    o further mnc-ification
125      - add verification/lab_sea to the list with mnc setups
126      - fix undefined mnc v-names in cd_code
127      - add kpp to mnc output (both snapshot and timeave)
128    o non-hydrostatic code
129      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
130        in calc_gw.F
131      - defaults to viscAh
132      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
133        friction or Leith) in non-hydrostatic mode, as long as there is
134        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
135    o pkg/cost
136      extend simple cost functions to treat time mean quantities
137      (T,U,V) via cost_accumulate_state from cost_tile
138    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
139        be 2 times larger than the minimum size the advection scheme requires.
140        now get a perfect conservation of salt in advect_cs test-exp (updated)
141    o GGL90 (Gaspar's TKE mixed layer)
142      - add horizontal diffusion of TKE, requires exchanges in
143        do_fields_blocking_exchanges, horizontal diffusivity is zero by
144        default. In OPA there is no horizontal diffusion of TKE but the
145        mixing coefficients are computed from a horizontal average of TKE of
146        6 points or so. I think that diffusion has a little more physical
147        justification.
148      - clean up ggl90_calc in the hope of reducing memory usage (this hope
149        was in vain)
150      - mask tke-variable in ggl90_init
151    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
152    o fix biharmonic diffusion on CS-grid.
153    o more obcs stuff
154      - added obcs_external_fields_load as an alternative to the EXF-pkg option
155        for reading boundary values. This routine is called from
156        obcs_prescribe_read
157      - updated obcs_check
158      - changed sponge layer relaxation parameter units for days to seconds
159      - turned off sponge layer by default
160      - changed argument list of OBCS_CALC to myTime+deltaTclock
161      - fixed about 35 bugs in obcs_external_fields_load
162    
163    checkpoint55c_post
164    o obcs stuff
165      - new runtime flags useOBCSprescribe, useOBCSbalance
166      - re-arranged obcs_calc
167      - moved exf_getobcs to obcs_prescibe_read
168        obcs_prescibe_read is called after ORLANSKI stuff
169        and independent of it (executable can contain all).
170      - updated obcs_check
171      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
172        These may be necessary only if tangential velocities are
173        prescribed at OB, not sure, needs testing.
174    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
175      which simplifies the calls and passes the ifc check-bounds test
176    
177    checkpoint55b_post
178    o add a 2D scalar, Z location, exchange_2 routine.
179    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
180      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
181      affects advect_cs results (for the wrong reason): update output.txt
182    o use a more standard discretization for biharmonic viscosity ;
183     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
184      affects results of dome set-up: update output.txt
185    o fix gad_advection.F (CubedSphere part), back to version 1.23
186    o fix bug in mom_vi_del2uv.F (CubedSphere part).
187    
188    checkpoint55a_post
189    o merged code to
190      * prescribe/read time-dependent open boundaries
191        (works in conjunction with exf, cal)
192      * sponge layer code for open boundaries
193      * each boundary N/S/E/W now has its own CPP option
194        (healthy for the adjoint)
195    
196    checkpoint55
197    o up-to-date adjoint of previous breaks
198      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
199      - global_ocean_ebm: adjoint still needs fix (TLM ok)
200      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
201      - carbon: * remove tr1-related adjoint verification
202                * add ptracer as control variable
203    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
204      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
205    
206    checkpoint54f_post
207    o in verification/carbin/ remove experiment related to
208      ALLOW_PASSIVE_TRACER (array tr1 etc)
209      code_ad/ input_ad/ results_ad
210    
211    o add two new packages
212      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
213        + subject to optimization (memory)
214      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
215        + subject to reordering (many GOTOs in the original code)
216        + so far opps is called for every (i,j) point, and then operates in
217          the vertical; one may want to reorder the scheme in order operate in
218          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
219          fields)
220    o overhaul of IO so that we now have flags for MDSIO and/or MNC
221      - all verification tests compile and run with linux_ia32_g77
222      - defaults are compatible with current input files--nothing
223        should change if you were not previously using MNC
224      - MNC output has been added in numerous places (eg. timeave)
225        but there are still a few writes not yet do-able with MNC
226        (this is in progress)
227      - flags now allow for either/or/both use of MDSIO and MNC and
228        documentation will soon follow
229      - numerous small formatting cleanups for ProTeX
230    o add version info (via BUILD_INFO.h) to MNC and stdout
231    
232    checkpoint54e_post
233    o add two new packages
234      - pp81 (Packanowski and Philander, 1981), Richardson number and
235        stratification dependent mixing
236      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
237      - these scheme operate in a similar manner as KPP (without ghat, of
238        course), however there is only one diffusivity that is used for both
239        temperature and salinity (and passive tracers)ç
240    o add offline package
241    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
242      provided by Stephanie Dutkiewicz
243    o genmake2: add ability to search for C compilers and cleanup test output
244      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
245    
246    checkpoint54d_post
247    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
248    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
249      leading to additional shift by 5 days each year of integration
250       (i.e. leading to considerable offset over the years)
251    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
252    o start with no AB and no initial filtering (staggerTimeStep):
253      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
254    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
255      (external loading & cpl import/export stay in forward_step.F)
256    o update coupling interface to work with new staggerTimeStep
257    o change MDSIO ptracers_pickup.
258    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
259    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
260    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
261    
262    checkpoint54c_post
263    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
264      this affects (truncation error) output.txt of test-exp:
265       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
266    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
267    o change Qnet to always be the net heat flux, (+upward).
268      affects (truncation error) output of natl_box exp.: updated
269    o define the max number of passive tracers in PTRACERS_SIZE.h
270    o start to test mnc routinely in exp0
271    o add sea-ice loading (sIceLoad) as a new forcing field.
272    
273    checkpoint54b_post
274    o add testreport "-j JOBS" option for parallel builds (tested and pretty
275       impressive on Altix and Opteron systems)
276    o diagnostics can now write NetCDF files through the mnc package
277    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
278    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
279    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
280      affects (truncation error) output of lab_sea & natl_box exp.: updated
281    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
282    
283    checkpoint54a_post
284    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
285    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
286    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
287    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
288      + internal_wave (shift in writing cg2d_ini_res)
289    checkpoint54a_pre
290    
291    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
292      - modified verification/lab_sea and natl_box_adjoint accordingly
293    
294    checkpoint54
295    checkpoint53g_post
296    o prepare splitting of thermodynamics: store convect.counter in common block
297    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
298      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
299    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
300    o new parameter "nShapS": allow to treat differently S from T (nShapT)
301    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
302    o restore adjointability
303    
304    checkpoint53f_post
305    o modifications that affect AIM experiment results (update output.txt):
306      - no advection of S at top interface Nr (pkg/generic_advdiff)
307      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
308    o AIM pkg:
309      - include stability function into surf.Flux derivative relative to Tsurf
310      - calculate clear-sky radiation & surface temp. change (for diagnostics)
311    
312    checkpoint53e_post
313    o merged cylindrical coord configuration
314    o added rotating_tank experiment
315    checkpoint53e_pre
316    
317    checkpoint53d_post
318    o faulks upgraded: re-generate output.txt that have changed:
319       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
320    o Added Bryan and Lewis, 1979, vertical diffusivity profile
321    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
322    o added Sadourny discretization of Coriolis
323      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
324      - re-enabled use of omega3 (useAbsVorticity)
325    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
326      vector-invariant equations
327      - note: does *NOT* yet use same variable visc. for no-slip BC's.
328    o recoded the lateral boundary conditions for non-hydrostatic w, this time
329      hopefully without new bugs
330      - still to do: biharmonic friction for non-hydrostatic w
331    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
332    o regenerated output for global_ocean_ebm (using -ieee)
333    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
334      of mom_common/
335      - simple re-arrangement of instructions within computing loop
336    checkpoint53d_pre
337    
338    checkpoint53c_post
339    o new version of coupler for AIM+thSIce and Ocean models
340     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
341     - land: change Evaporation of snow
342     - aim with thSIce: fix bug in snow-precip.
343    o changes to calc_gw.F
344     - bug fix for w^2 term near the bottom boundary
345     - (hopefully) improve the lateral slip boundary condtions for use with
346        partial/looped cells
347      - because the bug fix changes two verification experiments anyway (exp5
348        and plume on slope), change the lateral boundary condition from half slip
349        to the value of no_slip_sides
350    o ebm package wasnt quite up to the parallel task. Fixed that.
351    o Adjoint of EBM package + verification
352      * TLM OK
353      * ADM not sufficient accuracy yet (needs further testing)
354    
355    checkpoint53b_post
356    o Commiting new energy balance model to repository
357      * package is pkg/ebm
358      * verif. is verification/global_ocean_ebm
359      * references are in ebm_driver.F
360    C      * X. Wang, P. Stone and J. Marotzke, 1999:
361    C        Global thermohaline circulation. Part I:
362    C        Sensitivity to atmospheric moisture transport.
363    C        J. Climate 12(1), 71-82
364    C      * X. Wang, P. Stone and J. Marotzke, 1999:
365    C        Global thermohaline circulation. Part II:
366    C        Sensitivity with interactive transport.
367    C        J. Climate 12(1), 83-91
368    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
369    C        Destabilization of the thermohaline circulation
370    C        by atmospheric eddy transports.
371    C        J. Climate 7(12), 1870-1882
372    o Will need long integration testing.
373    checkpoint53b_pre
374    
375    o created pkg/mom_common in preparation for variable viscosity code
376    o renamed and split ini_mnc_io
377    o pkg/land: only liquid water can diffuse or run-off
378    o AIM using land: soil wetness availability account for snow
379    o added printMapIncludesZeros to EEPARMS namelist
380    
381    checkpoint53a_post
382    o restore TAMC compatiility for exf_constants.h
383      (no usage of _d in .h)
384    o Additional storing in KPP in an attempt to fix
385      TAMC problem with adjoint of KPP code.
386      (no success...)
387      Identical code works fine with TAF.
388    o Fixed verification/natl_box_adjoint experiments.
389      Initial conditions for Experiments 4 and 5 are now
390      set to "SEAICE_initialHEFF=0", which is more reasonable,
391      and hence gives results closer to that of Experiment 2.
392      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
393    
394    checkpoint53
395    o stable checkpoint with up to date adjoint
396      TLM tests only run for 1st grdchk at the moment. Its unclear if
397      this is a code problem or a problem with resetting code for g_
398      variables that is being autogenerated wrong.
399      Otherwise:
400       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
401       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
402         are both still in chaos following their security messes.
403    
404    checkpoint52n_post
405    o various build (mostly genmake2) changes including:
406      - ability to build/run more easily within Cygwin and MacOS X
407      - more complicated Makefiles with a stronger dependence on Gnu Make
408    o pkg/seaice modifications
409      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
410        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
411        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
412      - changed proxy for geostrophic velocity and updated
413        verification/lab_sea/results/* accordingly
414      - removed ADI dynamic solver from pkg/seaice
415      - replaced all occurrences of 1/CSTICE or 1/CSUICE
416        they caused a segmentation fault under certain circumstances
417      - removed unused field WATR
418    o bug fix in exf-package:
419      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
420         now reflect that.
421    o small fixes in the cal-package:
422      - set reference date to first of January for the 'model'-calendar
423      - failing of cal_CheckDate in cal_FullDate now actually results in a
424        warning
425    o small modifications in exf-package to increase flexibility:
426      - change climtempfreeze from a constant to a runtime parameter that
427        is specified in data.exf_clim (default = -1.9)
428      - introduce runtime parameter windstressmax (default = 2.0) that is
429        specified in data.exf
430    o fix in pkg/thsice:
431      - update Evap (Tsf changes) to be consistent with Latent heat flux
432      - maintain snow precipitation unchanged (even if Tsf >=0).
433     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
434    
435    checkpoint52m_post
436    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
437      this does not change any of the results, because myIter=0 in swfrac always
438      lead to jwtype=2 (the default anyway), but the call makes little sense
439      as a default
440    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
441    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
442      atmospheric model (AIM) to use it ; add a "slab ocean" component.
443    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
444    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
445    o extending useSingleCpuIO option to work with new exch2 I/O format
446      - old-style, missing-tile I/O is still accessible by defining CPP
447        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
448    o monitor package can write to NetCDF files and/or STDOUT
449    o fix re-definition bug in MNC_GRID_INIT_ALL()
450    o doc/api_reference added
451      - a framework for building an API Reference Manual using all
452        the "protex" comments embedded in the code
453      - see pkg/generic_advdiff, pkg/mnc for examples
454    o MNC:
455      - make myThid the last argument for all subroutines
456      - new default for the grid files: NO halos
457      - add useMNC and other run-time flags
458      - separate per-file-group handling of the unlimited dimension
459      - early initialization of MNC w/ flags read at the eeboot stage
460        and lookup tables set in initialize_fixed
461      - write all MNC output to a freshly-created directory
462    o thermodynamics sea-ice (thsice) is now tested with testreport.
463    o test exp. advect_cs: use the standard cs32 grid ; update output.
464    o Added functionality to grdchk:
465      pick global i,j,k position (or nearest wet) where to perform check.
466    
467    checkpoint52l_post
468    o new land formulation:
469      a) use ground enthalpy as prognostic variable to ensure exact
470         energy conservation.
471      b) account for water temperature and for latent heat of freezing
472         in all processes (rain, run-off, ground storage)
473      c) compute surface and ground temperature implicitly.
474    o aim_v23 modification for new land model:
475      a) Treat separately land / ocean / sea-ice surface fluxes
476         to allow implicit computation of land & sea-ice surface temp.
477      b) add snow precipitation.
478    checkpoint52l_pre
479    
480    o fix problem (when 1 tile is empty) in min/max monitor.
481    o fix bug in timeAve (u,vZetatave in common block)
482    o no restoring terms under ice for pkg/seaice
483    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
484    o bug fix for pkg/seaice pickups
485    o change MNC call locations and add coordinate attributes
486    o mask vorticity at the corner ; affects global_ocean.cs output
487    o fix ini_curvilinear_grid ; test CS experiments with mpi
488    o aim.5l_cs: modify sea-ice fraction input file ; update output
489    o exf: Adding simple range check routine for exf fields after read
490    
491    checkpoint52k_post
492    o removed top-level directory "diags"
493      - we migrated these functions to pkg/timeave a long time ago
494    o fixed bug introduced in pkg/monitor
495    o accuracy ctrlprec = 32 insuffient for gradient checks using
496      averaged fields (I/O via cost_averages)
497      -> use ctrl.h in active_file*.F to control I/O precision.
498    o paramter list of CALL ADTHE_MAIN_LOOP
499    o added initial do_the_model_io to ecco
500    o set all ...Freq to zero after cost_final
501      taveFreq, dumpFreq, pChkptFreq
502    o MAIN and ECCO differentiability restored
503    
504    checkpoint52j_post
505    o fix nchklev in tamc.h for global_ocean...
506    o Bringing flow and store directives up-to-date
507    o Really weird thing!
508      call do_the_model_io from the_main_loop with parameters
509      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
510      TAF places a faulty re-call of initialise_varia
511      after cost_final call which should not be there!
512    checkpoint52j_pre
513    
514    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
515      error messages
516    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
517    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
518      debug output
519    o modfied mdsio_writefield.F to handle non-global files under exch2
520    o update AIM Cubed-Sphere exp (aim.5l_cs):
521      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
522    o update AIM Equatorial Channel exp:
523      use standard aim_v23 pkg and change the SST fields to be more realistic.
524    o globalFile now works with exch2
525    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
526      mon_vort3.F to make exch2 friendly with >1 tile per cube face
527    o limit timeave output for hi-res integrations
528    
529    checkpoint52i_post
530    o removed CPP_EEOPTIONS.h from verification/*/code
531    o updated the tiling for global_ocean_pressure
532    checkpoint52i_pre
533    
534    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
535      the old pkg/aim).
536    
537    checkpoint52h_pre
538    o shortened offending lines in exch2_send_rx?.template
539    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
540    o genmake2: add build & execute test for NetCDF code
541    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
542      old grid files, moved CPP_EEMACROS.h to pkg/exch2
543    o added useSingleCPUIO flag to monitor.F and mon_out.F
544    o added temporary hack for sea-ice dynamics on the cube:
545      metric terms are ignored and it is assumed that
546      there is no sea-ice on cube faces 1, 2, 4, and 5.
547    
548    checkpoint52f_post
549    o added exch2 cube routines to pkg/exch2
550    o modified hs94.cs-32x32x5 to use it
551    o added new grid files to hs94.cs-32x32x5
552    checkpoint52f_pre
553    
554    checkpoint52e_post
555    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
556      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
557    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
558      to work with implicit vertical advection and AB ;
559    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
560    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
561     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
562    checkpoint52e_pre
563    
564    o fix bug in impldiff when Nr=1 or Nr=2.
565    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
566    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
567    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
568      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
569    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
570    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
571    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
572    
573    checkpoint52d_post
574    o re-tiled many expts to allow comparison in multi-processor mode
575      - updated output accordingly
576      - changed hs94.128x64x5 to use intial T from file rather than use the
577        random number generator
578    o add infrastructure in model routines for fizhi and gridalt packages
579    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
580    o changes to permit hi-res, cubed-sphere, configuration
581      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
582      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
583      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
584        of surface winds for the cube
585      (A verification experiment, based on global_ocean.cs32x15, but with
586       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
587       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
588       complete with example surface forcing files and matlab scripts to look
589       at the output and compare it with that of global_ocean.cs32x15.)
590    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
591       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
592       to conform to the common rule.
593    o check-in the first version of the coupler + interfaces for multi-components
594       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
595       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
596       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
597       - ocean and atmos. share the same horizontal grid (no interpolation).
598       - exchanges between component and coupler is done in forward_step
599    o new verification experiment, cpl_aim+ocn:
600       coupled ocean - AIM atmosphere on cs32 grid.
601    
602    checkpoint52d_pre
603    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
604    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
605    
606    checkpoint52c_post
607    o Fixing OPTIONS files for use of exf:
608      - ALLOW_ECCO not needed
609      - ECCO_CPPOPTIONS.h should not be included from
610        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
611        as has been the case in the past
612      - All cal/exf related options are currently set in
613        single header file. Should remain so until we
614        agree on a consistent new policy.
615    o Removed all CPP options for cal package.
616      cal has no more CPP options.
617    o modified STOREs in GAD_ADVECTION
618    o corrected key comp. for passkey
619    
620    checkpoint52b_post
621    o new version: "thsice" of thermodynamic sea-ice pkg:
622     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
623     - modify fluxes but do not change theta directly;
624     - light cleaning of bulk_force pkg (still needed with thsice).
625     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
626       + output_thsice.txt to test thsice & bulk_force pkgs.
627    o put back grid & coriolis monitor output.
628    checkpoint52b_pre
629    
630    o call "do_the_model_io" at the beginning (=> dump initial state)
631    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
632    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
633      (need info on NUMBER_OF_PTRACERS)
634    o missing PTRACERS headers in some routines
635    o default tamc.h in pkg/autodiff supposed to crash
636      to ensure proper customization
637    
638    checkpoint52a_post
639    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
640      - moved surfaceTendencyTice from pkg/seaice to main code
641      - subroutine FREEZE_SURFACE now limits only surface temperature
642        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
643        => new output.txt for global_ocean.cs32x15 & global_with_exf
644      - keep the old version of FREEZE for backward compatibility;
645        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
646      - corresponding modifs for TAF directives
647    o added surface flux output variables to TIMEAVE_STATVARS
648    o time-averaged output for pkg/ptracers
649    o fix problem with ECCO-related divided adjoint
650      snapshot file was missing some ad-variables,
651      but no warning issued by TAF
652    
653    checkpoint52a_pre
654    o some bug fixes for #undef REAL4_IS_SLOW
655    
656    checkpoint52 = ecco_c52_e35
657    o after testing adjoints of checkpoint51u_post
658    
659    checkpoint51u_post
660    o this is the post-merge tag of the ecco-branch
661      (needs another clean checkout and re-testing)
662    o various natl_box_adjoint configs and results
663      but no input fields
664    o obcs adjoint not yet merged!
665    o adding ECCO global 1x1 and 2x2 degree configs
666    o updated/extended some store directives for seaice
667    o pkg/ecco now containes ecco-specific part of cost function
668    o top level routines the_main_loop, forward_step
669      supersede those in model/src/
670      previous input data.cost now in data.ecco
671      (new namelist ecco_cost_nml)
672    o in ctrl/ cleaned some cross-dependencies and updated CPP options
673    
674    checkpoint51t_post
675    o this is the pre-merge tag of the ecco-branch
676    
677    checkpoint51s_post
678    o cleanup: removed various obsolete #define-s
679    o pkg/grdchk
680      - renamed 'ph-grd 3' to 'grad-res'
681      - merged from ecco-branch
682        (remaining bug fixes for obcs gradient checks)
683      - additional high-precision output for testreport
684        (grep for 'precision_grdchk_result')
685    
686    checkpoint51r_post
687    o cleaned up or removed CPP_OPTIONS.h files
688    o updated results for some of the tests to reflect the new
689      optfiles (-ieee: -O0 instead of -O3)
690    
691    checkpoint51q_post
692    o cd_code:
693      - moved cd_scheme.F -> cd_code_scheme.F
694      - separate read_checkpoint from cd_code_ini_vars.F
695      - separated cd_code part from write_checkpoint
696      - updated AD_SOURCE, generated .flow
697      - added CD_CODE_VARS.h to the_main_loop
698      - Moving cd_code specific store dir.s to pkg/cd_code
699    o ctrl package totally restructured
700      - pack/unpack now optional and decoupled from
701        xx_/adxx_ I/O
702      - ctrl_pack/unpack cleaned
703        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
704      - confined inclusion of AD_CONFIG.h to where necessary.
705    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
706    
707    checkpoint51p_post
708    o create initial cd_code package
709      - WARNING: the initialization of fields within packages
710        is broken because INI_FIELDS (where READ_CHECKPOINT is
711        called) is called *before* PACKAGES_INIT_VARIABLES.
712        This seems to be backwards since
713        1) its important to initially zero the entire field including
714           the "halo" region
715        2) zeroing needs to be done *before* reading pickup info
716           and the pickup call might or might not happen in any
717           particular run
718      - this needs an overhaul for R2
719    o cleanup verification/*/code/GMREDI_OPTIONS.h
720    o cleanup testreport
721    
722    checkpoint51o_post
723    o bringing AD-related verif's up to date with genmake2
724      - carbon/
725      - global_ocean.90x40x15/
726      - hs.94.1x64x5/
727      - (front_relax/ )
728    o (more) consistent directory structure for AD-related verif.'s
729    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
730    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
731    o bug fix in find_alpha.F for MDJWF:
732      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
733        change rho -> rho-rhoConst
734      - replace call find_rho to find_rhonum
735    o initialisation of rFlx extended to full array (required by TAF)
736      and shifted to thermodynamics
737    o removed PTRACERS.h in ptracers routine
738    o added surfacetendencyPtr to S/R parameter list pracers_forcing
739    o Correcting initialisations for fVerU, fVerV.
740    o helping TAF to recognize dependency on kUp for
741      fVerU, fVerV
742    o Replacing delZ by delR in pkg/ctrl/
743    checkpoint51o_pre
744    
745    o undid all of cp51 pending some cleanups and discussion
746    o added the [#include "AD_CONFIG.h"] statement to all files that need
747       it for adjoint/tl #defines
748     o re-worked the build logic in genmake2 to support AD_CONFIG.h
749     o removed tools/genmake since it no longer works
750    
751    checkpoint51n_post
752    o modifications to make FREEZE flux visible to pkg/kpp
753      - moved surfaceTendencyTice from pkg/seaice to main code
754      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
755      - subroutine FREEZE now limits only surface temperature
756        (this means new output.txt for global_ocean.90x40x15,
757         global_ocean.cs32x15, and global_with_exf)
758    o added surface flux output variables to TIMEAVE_STATVARS
759    
760    checkpoint51n_pre
761    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
762    o added [#include "AD_CONFIG.h"] to all files that use the following
763      defines:
764      - ALLOW_ADJOINT_RUN
765      - ALLOW_TANGENTLINEAR_RUN
766      - ALLOW_ECCO_OPTIMIZATION
767    
768    checkpoint51m_post
769    o incorporating changes to get TAMC/TAF working in genmake2
770      - added new TAMC/TAF targets to the Makefile
771      - various cleanups related to package handling
772      - these changes should have no impact on the forward model
773    
774    checkpoint51l_post
775    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
776     - faster algorithm for cal_addtime.F
777     - higher precision arithmetic, where needed
778     - pkg/exf *startdate variables changed from calendar date to
779       model integration time
780    
781    checkpoint51l_pre
782    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
783    o enable to apply restoring on S & T only in a latitude band.
784    o update output (external_forcing_surf modif. change truncation errors)
785       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
786    
787    checkpoint51k_post
788    o change default to: useNHMTerms=.FALSE.
789     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
790       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
791     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
792        exp1, ideal_2D_oce
793     - change data file of oceanic exp (leave the results unchanged for now)
794       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
795    o set gravitySign automatically according to the vertical coordinate used
796      (and change sign: back to "logical" value: +1 when R increases downward)
797    o added an include barrier to the default CPP_OPTIONS.h and
798      removed the #include "PACKAGES_CONFIG.h" from it
799    o fix a bug in mom_fluxform (from chk51j_post)
800    
801    checkpoint51j_post
802    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
803    o adjusted some flow directives (dynamics, thermodynamics)
804    o added cubed-sphere case to test cost function
805    o heckpoint_lev?_directives.h now include
806      pkg-specific directives, whenever those are enabled.
807    o Moving pkg-specific flow directives to corresponding pkg
808      Moving pkg-specific differentiation list to corresponding pkg
809      Moving pkg-specific checkpoint-lev storing to corresponding pkg
810      ---> conventions are
811           - pkg_ad.flow
812           - pkg_ad_diff.list
813           - pkg_ad_check_lev?_dir.h
814    
815    checkpoint51i_post
816    o merge of the branch-genmake2
817      - knowingly breaks the older genmake
818      - automatic generation of all ALLOW_${PKG_NAME} defines
819      - new testreport supersedes older testscript
820    o large number of package inclusion and header cleanups
821    checkpoint51i_pre
822    
823    o new output for adjoin of global ocean vector invariant
824    o fix for checkpoint of thermodynamic seaice and bulk_force
825    o Steph gchem various cleanups
826    
827    checkpoint 51h_pre
828    o fixed some single quotes
829    o modify gchem pkg to be more versatile
830    o modifications to clean up dic pkg
831    o add pkg/cfc
832    
833    checkpoint51g_post
834    o provide links for ARPACK and ADM*TLM
835    o start removing verification/vero/
836    o update AD-related stuff
837      (in particular some IF-statements in model/src/ routines)
838    o adding to verification/global_ocean.90x40x15/ adjoint of
839      vector invariant setup
840    
841    checkpoint51f_post
842    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
843    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
844      of tracer Green's fucntions for ocean inversion project.
845    
846    checkpoint51f_pre
847    o Added on-the-fly spatial interpolation capability
848        "USE_EXF_INTERPOLATION" to pkg/exf.
849      - This is a temporary Cartesian-grid hack until
850        the super-duper ESMF coupler becomes available.
851      - See verification/global_with_exf/README for usage example.
852      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
853        flags and modified pkg/seaice accordingly.
854    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
855        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
856        non-local transport term.
857    
858    checkpoint51e_post
859    o pkg/mom_vecinv:
860      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
861      - add time-ave diagnostic of vorticity advection.
862    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
863    o atmospheric geopotential: - include water vapor effect;
864                                - use p^kappa in p* scaling.
865    o land pkg: read initial state from files.
866    o AIM : add stratospheric drag in the upper level
867    
868    checkpoint51d_post
869    o change function ILNBLNK (=> last non-blank char.) to return zero
870      (instead of the string length) when the string. char is empty
871    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
872    o modif's to restore TAMC compatibility
873      - avoid "_d" constructs in PARAMETER declarations
874      - avoid interrupting lines by comment lines
875    o Use cluster local disks for purely local I/O
876      vs. globally visible disks needed for ctrl stuff
877      (merged from ecco-branch)
878      - new active_file_loc... and mdsio_..._loc routines
879      - affected packages: autodiff, ctrl, grdchk, mdsio
880    
881    checkpoint51c_post
882    o introducing integer flag debugLevel
883      - debLevZero: suppress all output
884      - debLevA: standard
885      - debLevB: equivalent to current debugMode=.TRUE.
886    o introducing pathname variable mdsioLocalDir for mdsio
887      that can be specified at runtime
888      (relevant for cluster I/O to local disk)
889    `
890    >>>checkpoint51b_post
891    adjoint of ptracers
892    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
893    o extended state in checkpoint_lev?, etc.
894    o alternative ctrl/cost with tr1 or ptracer
895    o new comlev1_bibj_ptracers
896    o new ptracers.flow
897    o made ptracers_forcing same as external_forcing_s
898    o added verification for adjoint with ptracers
899      - adm. grdchk fail so far
900      - tlm. grdchk OK
901      - checked tapelev/comlev recomputations: OK
902    <<<checkpoint51b_pre
903    
904    checkpoint51a_post
905    o added code for biogeochemistry package
906      - new pkgs: dic, gchem
907      - new subroutine in ptracers
908    o modify code for biogeo packages
909      - in model/src and pkg/ptracers
910    
911    checkpoint51
912    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
913      - autodiff, ctrl, exf, grdchk, seaice
914      kept separate packages
915      - cost, ecco, obcs
916    o updating verification/internal_wave, verification/lab_sea
917      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
918    
919    checkpoint50i_post
920    o Preparing next differentiable checkpoint and sync
921      of MAIN vs. ecco-branch
922      - 1st step: this one is differentiable
923      - 2nd step: next(! not this) checkpoint will have updated packages
924                  from ecco-branch)
925    
926    checkpoint50h_post
927    o new package "land": provide surface BC for AIM.
928    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
929    o AIM: use true log-P extrapolation for near surface temp (= as in
930        F.Molteni paper) ; update aim.5l_cs output.
931    o New variable in PARM03 for more flexible pickups
932    o somewhat cleaned package initialisation sequence for
933      ctrl/ cost/ ecco/ in packages_... routines
934    
935    checkpoint50g_post
936    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
937      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
938      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
939        made the default because of faster convergence than ADI
940    
941    checkpoint50f_post
942    o exf totally restructured
943      - replaced all exf_set_ routines by one generic exf_set_gen.F
944        and made sure it's still differentiable
945      - split exf_getffields.F into new exf_bulkformulae.F
946      - exf_inscal_/exf_outscal_ suffixes consistent with field names
947      - updated adjoint/makefile and relevant verif. accordingly
948    
949    checkpoint50f_pre
950     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
951          + change Evap over land. (update aim.5l_cs output)
952     o added missing .cvsignores and made uniform across expts
953     o changed configuration of tidal_basin_2d expt
954     o added pkg/debug functions for tracing code in fatal crashes
955     o tidied pkg/monitor to use MONITOR_OPTIONS.h
956     o new fn in pkg/monitor to stop model if solution grows too big
957     o removed lots of single quotes from comments
958    
959    checkpoint50e_post
960    o make KPP work with PTRACERS
961     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
962       nearly a copy of kpp_transport_s
963     - there is no analogue to SurfaceTendencyS, so I have to use
964       gPtr(of the surface layer) instead
965    o add a new platform SunFire+mpi (SunFire 15000) to genmake
966    checkpoint50e_pre
967    
968    checkpoint50d_post
969    o change kpp output from multiple-record state files to single-record state
970      files analogous to write_state.F
971    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
972      analogous to the cg2d-related output.
973    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
974      so that writing to internal file fn (with length 512) fails.
975    checkpoint50d_pre
976    
977    checkpoint50c_post
978    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
979    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
980    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
981    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
982    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
983    
984    checkpoint50c_pre
985    Merging from release1_p13:
986    o bug fix for pkg/seaice dynamic solver
987    o Added SEAICE_initialHEFF to pkg/seaice
988    
989    checkpoint50b_post
990    o store u*,v* in gU,V instead of in guNm1,gvNm1
991    o in order to put the momForcing out of the Adams-Bashforth:
992      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
993      to timestep.F
994    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
995    o re-generate output for highly sensitive test-exp:
996       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
997    
998    checkpoint50b_pre
999    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1000    o corrected CPP option mismatch in exf_Bulk... functions for case
1001      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1002    
1003    checkpoint50a_post
1004    o Bug fix for merging between c50 and KPP.
1005      ikey was passed from thermodynamics to kpp_calc via
1006      common block rather than being recomputed in kpp_calc,
1007      in contradiction with new key itdkey.
1008      New key ikppkey created, and tamc.h headers updated.
1009    
1010    checkpoint50
1011    - 2nd step of merge with ecco-branch:
1012      merge changes in ecco-branch back into main trunk
1013    - bug fix in find_alpha
1014    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1015    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1016    - merged some sliced AD support routines
1017    
1018    checkpoint49
1019    merged from ecco-branch:
1020    o exf:
1021      - Enable initialisation of forcing fields to constant
1022        (runtime) values.
1023      - in exf_getffields.F
1024        Reduce i-/j-loop to interior domain, discarding overlaps.
1025        That also fixes wrong TAF-key computations for key_1, key_2
1026        with bulf formulae.
1027      - exf_init.F modify #ifdef for exf_init_evap
1028      - exf_getffieldrec.F, ctrl_getrec.F
1029        The following INT-usages are not safe:
1030          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1031          fldcount = int(fldsecs/fldperiod) + 1
1032        and were modified.
1033    o autodiff: checkpoint_lev...
1034      - updated storing for bulk formulae (some arrays were missing)
1035      - added state for seaice package
1036      - synchronized with main branch
1037    o DIVA:
1038      Modif.s in
1039      - the_main_loop.F
1040      - the_model_main.F
1041      and added cost_final_restore.F cost_final_store.F
1042      o With these changes, it is possible to fully separate
1043        the first forward run to compute the cost function (mdthe_main_loop)
1044        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1045        into separate model executions.
1046        This enables better tuning of DIVA to given queue sizes.
1047      o Loss of cost function value in consecutive DIVA runs is
1048        fixed by storing to 'costfinal' file.
1049      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1050        beginning/end of adjoint integration is accounted for.
1051      The current changes apply to TAF-1.4.26.
1052      TAF has one remaining bug, requiring one manual change
1053      (see MITgcm manual).
1054    o cal: synchronized between MAIN and ecco-branch
1055    
1056    checkpoint48i_post
1057    o Changes to restore differentiability of code w.r.t. previous tag
1058      (mostly adding new routines to make list and replacing
1059      pressure by totPhiHyd).
1060    o Updated and merged grdchk package
1061      - has both ADM and TLM checks
1062      - works for single- and multi-proc.
1063      - output cleaned
1064      - worked successfully for parallel DIVA
1065    o genmake:
1066      - Adding -platform=SP4
1067      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1068    o Modif. for DIVA:
1069      ctrl_unpack should not be called in intermediate DIVA interval.
1070      (similar thing would apply for active files such as
1071      tbar, sbar, psbar, which should not be reinitialised;
1072      only relevant for ecco-branch)
1073    
1074    checkpoint48h_post
1075    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1076    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1077    o Added SEAICE_initialHEFF to pkg/seaice
1078    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1079    
1080    checkpoint48g_post
1081    --- EOS:
1082    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1083      store total Potential in totPhyHyd for diagnostics & EOS.
1084    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1085    --- Pressure/geopotential gradient:
1086    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1087    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1088      ( changes results of global_ocean_pressure )
1089    o NLFS + z-coord.: add eta*Rho' contribution.
1090    o accurate phiHyd when using interface-W at the middle between 2 centers
1091     ( changes results of ideal_2D_oce )
1092    o includes r* 2nd term in potential gradient.
1093    
1094    checkpoint48f_post
1095    Merging from release1_p12:
1096    o Modifications for using pkg/exf with pkg/seaice
1097      - improved description of the various forcing configurations
1098      - added basic radiation bulk formulae to pkg/exf
1099      - units/sign fix for evap computation in exf_getffields.F
1100      - updated verification/global_with_exf/results/output.txt
1101    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1102      (SBO) core products, including oceanic mass, center-of-mass,
1103      angular, and bottom pressure (see pkg/sbo/README.sbo).
1104    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1105      to avoid negative values in shallow regions.
1106      - updated verification/natl_box/results/output.txt
1107      - updated verification/lab_sea/results/output.txt
1108    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1109    o Added useSingleCpuIO option (see PARAMS.h).
1110    o Updated useSingleCpuIO option in mdsio_writefield.F to
1111      work with multi-field files, e.g., for single-file pickup.
1112    o pkg/seaice:
1113      - bug fix in growth.F: QNET for no shortwave case
1114      - added HeffFile for specifying initial sea-ice thickness
1115      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1116    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1117      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1118    o pkg/seaice:
1119      - adjoint-friendly modifications
1120      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1121    
1122    checkpoint48e_post
1123    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1124    o dynamics: change definition of computational domain & adapt mom_fluxform
1125      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1126    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1127        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1128        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1129        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1130        inverted_barometer solid-body.cs-32x32x1
1131      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1132    
1133    checkpoint48d_post
1134    o in preparation for r*:
1135     a) use pre-computed gradient of hydrostatic potential:
1136        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1137     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1138        => affects results of glob_oce_pressure (different truncation error)  
1139      update output.txt of ideal_2D_oce & global_ocean_pressure
1140    
1141    checkpoint48d_pre
1142    o in preparation for r*:
1143      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1144      pass the 2 comp. of the grad. as arguments to momentum S/R.
1145      but for the moment, only used if it does not change the results.
1146    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1147    
1148    checkpoint48c_post
1149    Modifications in treatment of initial flux forcing controls
1150    to avoid extra storing of flux fields.
1151    
1152    checkpoint48c_pre
1153    o Added tidal_basin_2d experiment (currently 1D!)
1154    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1155    
1156    checkpoint48b_post
1157    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1158     (modification to pressure gradient not yet implemented)
1159    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1160      (for U & V) that are used for vertical advection of momentum.
1161    
1162    checkpoint48a_post
1163    o In preparation for r*, use temp. array to compute vertical transport
1164       in flux-form momentum pkg. => change results of few test-exp.
1165      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1166                        lab_sea, natl_box & plume_on_slope
1167    
1168    checkpoint48
1169    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1170    
1171    checkpoint47j_post
1172    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1173    o moved adexch from forward_step to addummy_in_stepping
1174    o added exch in ctrl_map_...
1175    o aveFreq.=0. at end of cost_final to avoid overwrite in
1176      reverse checkpointing loop
1177    o Yet more changes in gmredi:
1178      * adgmredi_calc_tensor
1179        avoiding all recomputation of gmredi_slope_limit
1180      * adgmredi_x/y/rtransport
1181        added flag for excessive storing to avoid recomp. of
1182        u/v/rtans, dTdx/y/z
1183        -> this is not really necessary and very memory-consuming
1184      * adgmredi_slope_psi:
1185        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1186      * gmredi_slope_limit
1187        re-activated full calculation of taperfct for case 'ac02'
1188    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1189    
1190    checkpoint47i_post
1191    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1192    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1193      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1194    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1195    o gmredi: fix few bugs.
1196    
1197    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1198    This will be a good checkpoint to plug into the ecco-branch.
1199    o few modif.'s to get latest version adjointed
1200      (mainly kick out code in ini_linear_phisurf)
1201    o modif's to run adjoint with exactConserv
1202    o case GM_BOLUS_ADVEC should be cleaned
1203      S/R gmredi_slope_psi should be cleaned
1204    o verification/carbon now has exactConserv=.TRUE.
1205    
1206    checkpoint47g_post
1207    o time-average AIM output: becomes independent from statvars time-average
1208      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1209    o After TAF bug fix:
1210      Tested adjoint of gmredi package.
1211      Tests were done with checkpoint47 rather than with latest
1212      checkpoint47f_post since the latter is broken for the adjoint
1213      verification/carbon/ contains both ADM and TLM gradient checks.
1214    Here they are, before they get changed/lost/stolen.
1215    Mostly modif.'s to fix numerical sensitivities.
1216    Gradient checks OK for
1217    - GM_taper_scheme:
1218      * clipping
1219      * ac02
1220      * linear
1221      * glw91
1222      * dm95
1223      * ldd97
1224    - GMREDI_OPTIONS:
1225      * GM_VISBECK_VARIABLE_K
1226      * GM_NON_UNITY_DIAGONAL
1227      * GM_EXTRA_DIAGONAL
1228      * GM_BOLUS_ADVEC
1229    in conjunction with data.gmredi parameters to be checked in
1230    in a few minutes under verification/carbon/code/
1231    
1232    checkpoint47f_post
1233    Merging from release1_p10:
1234    o modifications for using pkg/exf with pkg/seaice
1235      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1236        and SEAICE_EXTERNAL_FLUXES
1237      - pkg/exf CPP options EXF_READ_EVAP and
1238        EXF_NO_BULK_COMPUTATIONS
1239      - usage examples are Experiments 8 and 9 in
1240        verification/lab_sea/README
1241      - verification/lab_sea default experiment now uses
1242        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1243    
1244    checkpoint47e_post
1245    o created a tag prior to creating a branch
1246    
1247    checkpoint47d_post
1248    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1249      at the bottom boundary had an erroneous half slip boundary condition
1250    o added bottom drag and no slip boundary condition capabilities to
1251      oceanic pressure coordinates code
1252    o added new verification experiment global_ocean_pressure, this experiment is
1253      also described in the tutorial section of the manual
1254    checkpoint47d_pre
1255    
1256    checkpoint47c_post
1257    o Added a verification experiment for a global cubed-sphere ocean run
1258      -  verification/global_ocean.cubed32x32x30
1259      -  uses pkg/therm_seaice and pkg/bulk_forcing
1260    
1261    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1262    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1263      when using P-coordinate; only implemented for atmospheric config.
1264    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1265      NOTES: requires option NONLIN_FRSURF to be "#define".
1266    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1267    
1268    checkpoint47b_post
1269    Merging from release1_p9:
1270    o pkg/seaice
1271      - removed GOTO's and added taf directives
1272      - double precision constants to reduce the g77 (Linux)
1273        to F77 (SGI) differences reported in release1_p8
1274    o tools/genmake
1275      - added SGI options
1276    o verification/testscript
1277      - updated to that of checkpoint47a_post
1278    o verification/global_ocean.90x40x15/input/eedata
1279      - modified for SGI f77 compatibility
1280    o verification/lab_sea
1281      - added description of sea-ice model
1282      - added missing matlab routines
1283      - added test of thermodynamics parallelization
1284    
1285    checkpoint47a_post
1286    o new pkg: aim_v23
1287     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1288       for now, keep the same surface forcing as before.
1289     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1290     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1291     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1292    o add diagnostic of surface correction term in monitor output
1293    
1294    o bulk_force and therm_seaice
1295    - Two packages:  bulk_force (Bulk forcing)
1296      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1297    - Earlier integration from Stephaine Dutkiewicz
1298      and Patrick Heimbach.
1299    - Two ifdef statements for compile time,
1300       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1301    
1302    checkpoint47
1303    differentiable version of checkpoint46n_post
1304    o bug fix in quasihydrostaticterms
1305    o * "clean" adjoint code (in terms of extensive recomputations)
1306        can now be obtained for all GMREDI options (i.e. for
1307        - GM_VISBECK_VARIABLE_K
1308        - GM_NON_UNITY_DIAGONAL
1309        - GM_EXTRA_DIAGONAL
1310        - GM_BOLUS_ADVEC )
1311      * However, wrong gradient check problem remains unsolved.
1312      * New CPP options have been introduced for different
1313        tapering schemes
1314    o external_fields_load now part of differentiation list
1315    o pressure needs multiple storing;
1316      would be nice to have store_pressure at beginning or
1317      end of forward_step, e.g. by having phiHyd global (5-dim.)
1318      (NB: pressure is needed for certain cases in find_rho,
1319      which is also invoked through convective_adjustment).
1320    o recomputations in find_rho for cases
1321     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1322    o #define ATMOSPHERIC_LOADING should be differentiable
1323    o ini_forcing shifted to begining of initialise_varia
1324    o Incorporating QNVS line search routines into MITgcm
1325      (this is separate code, and therefore not under pkg)
1326      lsopt/, optim/
1327    o Updated verification/carbon/
1328      - #define GM_VISBECK_VARIABLE_K
1329      - GM_taper_scheme    = 'ldd97'    
1330    
1331    checkpoint46n_post
1332    Merging from release1_p8:
1333    o verification/natl_box:
1334      updating new external_fields_load routine
1335    o New package: pkg/seaice
1336      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1337      The sea-ice code is based on Hibler (1979-1980).
1338      Two sea-ice dynamic solvers, ADI and LSR, are included.
1339      In addition to computing prognostic sea-ice variables and diagnosing
1340      the forcing/external data fields that drive the ocean model,
1341      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1342      The implied surface heat flux is then stored in variable
1343      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1344      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1345      non-local transport term.  Because this call precedes model
1346      thermodynamics, temperature under sea-ice may not be "exactly" at
1347      the freezing point by the time theta is dumped or time-averaged.
1348      N.B.: fairly large differences in accuracy occur across
1349            different platforms/compilers; comparison between
1350            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1351            generated output gives:
1352       T           S           U           V
1353      C D M    c        m  s        m  s        m  s        m  s
1354      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1355      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1356      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1357    
1358      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1359    o GAD:
1360      - generated new common blocks to account for call of
1361        same gad routines with differing traceridentities
1362        (needed to modify tracerIdentity indices in GAD.h)
1363      - generated separate common blocks for case useCubedSphereExchange
1364        (Department of Futurology)
1365      - parameter lists to gmredi_?transport: added tracerIdentity
1366      - added new key indices to tamc.h
1367    o external_fields_load:
1368      - added this routine to TAF list
1369      - needed to make some common blocks global and additional storing
1370        along the same lines as exf package (checkpoint_lev?_directives.h)
1371    o exf:
1372      updated external forcing package
1373      - bug fixes carried over from ecco-branch
1374        (missing OBCS_OPTIONS.h in two routines)
1375      - enable easy to use "no forcing".
1376      - added exf I/O for atmospheric loading
1377      - added exf I/O for runoff data
1378      - transfered scaling between exf <-> MITgcm to exf namelist
1379    o Adding new verification experiment global_with_exf.
1380      This verification experiment is almost identical to the
1381      global_ocean.90x40x15 experiment, except that it uses
1382      the exf (and cal) package instead of the
1383      external_fields_load routine (cf README file).
1384    
1385    checkpoint46m_post
1386    o modified testscript to return -- when there are no lines of "%MON" output
1387    o added new flag "quasiHydrostatic" for QH mode
1388      and new routine quasihydrostaticterms()
1389    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1390      New routine: mom_u_coriolis_nh()
1391    o fixed sign of non-hydrostatic metric terms in u and v equations.
1392      Depend on correct sign of gravitySign.
1393    o added work.pc* to .cvsignore in aim directories using ifc
1394    o introduced flag for controllin non-hydrostatic metric terms
1395    o removed gravitySign from PARM04
1396    o switched to g77/ifc from pgf77 in aim experiments
1397    
1398    checkpoint46l_post
1399    o made convective adjustment work with pressure coordinates:
1400     - changed the direction of k-loop in convective_adjustment.F for the
1401       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1402     - adjusted the reference pressure k-index in convective_adjustment.F
1403     - adjusted the convection condition in convect.F (in analogy to
1404       calc_ivdc.F)
1405     - convective_adjustment no longer computes anything on the halos
1406     - removed the warnings about negative salinity from find_rho.F and
1407       find_alpha.F; instead the new routine look_for_neg_salinity, called
1408       at the beginning of find_rho, find_alpha, and find_beta, does a
1409       check of the entire slice, if CPP-option
1410       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1411    checkpoint46l_pre
1412    
1413    checkpoint46k_post
1414    o fixed the verification/global_ocean.90x40x15 experiment:
1415     - new bathymetry (the world according to A., JMC, and M.)
1416     - new initial fields and forcing fields (*.bin files)
1417     - new POLY3.COEFFS (for the next release one should switch to a full
1418       equation of state: JMD95P or MDJWF)
1419     - fixed several errors and redundancies in the data file
1420     - experiment uses looped cells
1421     - added matlab directory with diagnostic scripts for plotting of output
1422    
1423    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1424     - read AIM physics parameters from a file (data.aimphys)
1425     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1426    
1427    checkpoint46j_post
1428    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1429    o move wVel computation at the end of the time step, in S/R integr_continuity
1430    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1431    o update timeave pkg for wVel diagnostic.
1432    checkpoint46j_pre
1433    
1434    checkpoint46i_post
1435    o Clean up AIM package (and keep the results unchanged):
1436      include CPP_OPTION and use IMPLICT NONE in all routines ;
1437      declare all the variables _RL ; use _d 0 for all numerical constants.
1438      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1439    
1440    checkpoint46h_post
1441    o cleaned up the use of rhoNil and rhoConst.
1442      - rhoNil should only appear in the LINEAR equation of state, everywhere
1443        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1444        and the dynamical equations are all divided by rhoConst
1445    o introduced new parameter rhoConstFresh, a reference density of fresh
1446      water, to remove the fresh water flux's dependence on rhoNil. The default
1447      value is 999.8 kg/m^3
1448    o cleanup up external_forcing.F and external_forcing_surf.F
1449      - can now be used by both OCEANIC and OCEANICP
1450    checkpoint46h_pre
1451    
1452     Added code to convert surface volume flux (fresh water) into
1453     a mass flux when using P coordinates in the ocean (OCEANICP).
1454     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1455    
1456    checkpoint46g_post
1457    o Include a new diagnostic variable phiHydLow for the ocean model
1458      - in z-coordinates, it is the bottom pressure anomaly
1459      - in p-coordinates, it is the sea surface elevation
1460      - in both cases, these variable have global drift, reflecting the mass
1461        drift in z-coordinates and the volume drift in p-coordinates
1462      - included time averaging for phiHydLow, be aware of the drift!
1463    o depth-dependent computation of Bo_surf for pressure coordinates
1464      in the ocean (buoyancyRelation='OCEANICP')
1465      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1466        Theta, Salinity, and Pressure in the parameter list. This routine is
1467        presently contained in find_rho.F. This routine does not give the
1468        correct density for 'POLY3', which would be a z-dependent reference
1469        density.
1470    o cleaned up find_rho
1471      - removed obsolete 'eqn' from the parameter list.
1472    o added two new verification experiments: gop and goz
1473      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1474    checkpoint46g_pre
1475    
1476    checkpoint46f_post
1477    o Enable tangent linear (forward mode) gradient checks:
1478      - extended active file handling to g_... files
1479      - added TANGENT_SIMULATION to theSimulationMode
1480      - extended grdchk package accordingly
1481    o added tangent linear setup in verification/carbon/code_ftl
1482    o added adjoint setup in verification/front_relax/code_ad
1483    
1484    checkpoint46e_post
1485    o Added new equation of state -> MDJWF
1486      - EOS of McDougall et al., 2002, JAOT, submitted
1487      - caveat: the equation of state is only valid for a smaller (more
1488        realistic?) range of values than JMD95P/Z and UNESCO
1489      - added masks to the calculation of pressure in store_pressure
1490      - added more check values for density in check_eos (ini_eos.F), some of
1491        the old check values are out of the range of the MDJWF-eos, so don't
1492        expect perfect matches for those
1493    checkpoint46e_pre
1494    
1495    checkpoint46d_post
1496    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1497      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1498      case of pressure coordinates. eosType='JMD95Z' in
1499      combination with buoyancyRelation='OCEANICP' now causes an error.
1500    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1501      in find_alpha/beta.
1502    checkpoint46d_pre
1503    
1504    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1505      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1506    
1507    checkpoint46c_post
1508    o Changes necessary for ocean in p-coordinates
1509     -  Added new buoyancy relation = 'OCEANICP'
1510     -  Added new parameters = gravitySign (this used to be contained inside
1511        the factor dRdZ which I added when we first switched to R coordinates).
1512     X GM/Redi is not compatible (yet)
1513     X bottom drag and no-slip need to be debugged.
1514    checkpoint46c_pre
1515    
1516    checkpoint46b_post
1517    o Added new equation of state -> JMD95Z and JMD95P
1518      - EOS of Jackett and McDougall, 1995, JAOT
1519      - moved all EOS parameters into EOS.h
1520      - new routines ini_eos.F, store_pressure.F
1521    o Added UNESCO EOS, but not recommended because it requires
1522      in-situ temperature (see JMD95)
1523    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1524      unesco.f to be used with POLY3
1525    checkpoint46b_pre
1526    
1527    checkpoint46a_post
1528    o Added (atmospheric) pressure loading
1529      - new field in FFIELDS.h, etc...
1530      - new cpp flag ATMOSPHERIC_LOADING
1531    o Changed hFacC to _hFacC in calc_phi_hyd.F
1532    o Added SHORTWAVE_HEATING to some files for consistency
1533    checkpoint46a_pre
1534    
1535    checkpoint46
1536    further merges from release1_p5
1537    o new ctrl package
1538      - adopted from ECCO environment to enable optimization
1539      - added Eliassen Palm fluxes to controls
1540    o added Eliassen Palm flux controls to gradient check package
1541    o cost package
1542      - Compatible with new ctrl package
1543      - added Eliassen Palm cost hooks
1544      - modif's of existing cost functions
1545    o Adjoint-related bug fixes in kpp:
1546      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1547      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1548    o autodiff package
1549      - flow directives:
1550        + new for S/R do_the_model_io
1551        + enhanced for S/R checkpoint
1552        + new gmredi.flow
1553      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1554        disable adcommon.h/g_common.h by default.
1555      - fixed problem for adjoint of global_max
1556    o modified verification/carbon/
1557    o New setup for adjoint of global_ocean
1558    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1559    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1560    o incorporated hooks for sponge layer code (external_forcing.F)
1561    
1562    checkpoint45d_post
1563    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1564    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1565      (affects plume_on_slope "cg2d" output)
1566    o add new parameter deltaTfreesurf for free-surface time stepping
1567    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1568    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1569    o change phiMin in exp1 (to agree with documentation)
1570    o add new flags:
1571     - T,S forcing inside/outside Adams-Bashforth
1572     - turn off temp,salt advection and/or forcing
1573     - for each tracer, define internal flag for multiDimAdvection & A-B
1574    o monitor: change definition of KE to check conservation of Energy
1575    
1576    checkpoint45c_post
1577    o Removed f90 comments ("!")
1578    o Modified initialisations to enable exf package for MITgcm
1579      (without invoking ECCO_PACKAGE).
1580    o modifications to gradient check package (Martin Losch)
1581      - enable centered differences
1582      - modified format of standard output
1583    
1584    checkpoint45b_post
1585    o cleaned exchange calls in cg2d
1586    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1587    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1588      to configure barotropic setup (Martin Losch)
1589    o moved some initialisations within bi,bj loop in dynamics
1590      (TAF flow dependency)
1591    o in initialise_varia, moved call packages_init_variables
1592      before convective_adjustment_init
1593      (corresponding adjustment of TAF tape initialisation).
1594    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1595    
1596    checkpoint45a_post
1597    o compute Rho over the whole domain (extend iMin,jMin indices)
1598    o specific exchange for X-slice domain (case Ny=1)
1599    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1600    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1601    
1602    checkpoint44h_post = checkpoint45
1603    o Fix to restore differentiability:
1604      place at which packages_init_variables is called in
1605      initialise_varia is crucial for reverse control flow.
1606    o modifications in GMRedi to enable stable adjoint
1607      (corresponding modif's in thermodynamics, dynamics)
1608    o added missing hook for sponge layer code in external_forcing
1609    o modified test cost functions
1610    o storing in gad_advection (plus removal of write(0,*)!
1611    o missing headers TR1.h added in convective_adjustment routines
1612    o errorMessageUnit set non-equal zero in eeboot
1613      (conflict on some platforms, e.g. IBM SP3)
1614    o modified carbon verif.
1615    
1616    checkpoint44h_pre
1617    o vertical grid option: allow to put the Interface at the middle between
1618      2 cell-centers ; replace delZ in pkg/kpp by drF.
1619    o GM Advective form: Tracers are advected using the residual transport (=
1620      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1621    
1622    checkpoint44g_post
1623    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1624      results) ; ifdef missing in thermodynamics.F
1625    
1626    checkpoint44f_pre,checkpoint44f_post
1627    o added PTRACERS package
1628      This allows an arbitrary number of passive tracers to be integrated
1629      forward simultaneously with the dynamicaly model.
1630      + Implemented so far:
1631        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1632        - I/O and checkpointing
1633        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1634      + Not implemented so far:
1635        - KPP
1636        - OBCS
1637      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1638        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1639        line in data.pkg.
1640      + This package is disabled by default since it increases storage.
1641    
1642    
1643    o testscript: added -cleanup option
1644    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1645                 b) enable to filter 2D fields.
1646    
1647    checkpoint44e_pre,post
1648    o re-wrote convective adjustment to use pre-calculated weights
1649      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1650      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1651      Original calls to convect() still in place.
1652    
1653    chkpt44d_pre,post
1654    o added missing EXCLUDE_MONITOR flags
1655    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1656      (incompatible typ in MIN/MAX expressions caused problems
1657      on IBM SP3)
1658    o in genmake added variable MAKEDEPEND
1659      plus resetting for case SunOS
1660    o added timer_stats.c routine for IBM SP3
1661    o removed variables in dynamics
1662    !!! I forgot to create tag chkpt44d_pre !!!
1663    !!! But chkpt44d_pre = chkpt44c_post    !!!
1664    
1665    o real fresh water flux implemented with non-linear free-surface.
1666    
1667  chkpt44c_pre,post  chkpt44c_pre,post
1668  o few fix (mask in shap_s2, EmPmR in external_field_load,  o few fix (mask in shap_s2, EmPmR in external_field_load,
1669    USE_NATURAL_BCS in solve_for_P);    USE_NATURAL_BCS in solve_for_P);

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