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revision 1.121 by heimbach, Tue Jan 21 19:44:45 2003 UTC revision 1.394 by mlosch, Sun Nov 28 23:54:20 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint56a_post
7    o GCHEM: finish reorganizating the package
8      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
9        (introduces another 3D-array for each passive tracer, but only if
10        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
11        gchemTendency is not needed because the timestep is done separately)
12      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
13      - GCHEM is now---more or less cleanly---separate from PTRACERS
14      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
15        so clear to me how that should be done in a general way.
16    o CFC: improve formatting of output in CFC_ATMOS
17    o PTRACERS:
18      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
19        that ALL experiments with ptracers enable can be checked. This makes
20        GCHEM_MONITOR obsolete.
21      - include a runtime parameter PTRACERS_monitorFreq that defaults to
22        monitorFreq
23      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
24    o add PTRACERS (PTR0[1-5]) to testreport output
25    o exf_check_range:
26      * default changed to .TRUE.
27      * will check values for niter0 if debLevA, every timestep if debLevB
28      * STOP in exf_check_range if 'out of range'
29      * range chosen generous to allow for potential extema
30      TBD: a version with stricter range
31           permitted range would be runtime parameters
32    o GMredi:
33      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
34      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
35      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
36    o GCHEM:
37      - move call to GCHEM_FORCING_SEP, so that it is now called before
38        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
39      - introduced a useGCHEM runtime flag and applied it everywhere.
40      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
41        this flag is now only visible within GCHEM-pkg routines.
42      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
43        be replaced by a 3D array that is computed before thermodynamics; for
44        this, the tracer ID iTracer had to be included into the parameter list
45        of ptracers_forcing
46      - set up forward_step to call gchem_forcing, that will replace
47        gchem_forcing_int in ptracers_forcing
48      - cleaning up
49    o small cleaning of exch2: remove files that are also in eesupp/src
50    
51    checkpoint56
52    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
53    o mnc: cleanup "full" files--fixes out-of-memory problem
54    o ECCO-GODAE
55      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
56      * fully merged and updated from SIO code
57        windstress sign change affects
58        - exf_inscal_[u/v]stress
59        - sign of xx_tau[u/v] adjustments
60        - signs in cost_scat
61      * ctrl_get_gen: avoid update of tau[u/v] for first few days
62      * natl_box_adjoint updated and compressed
63      * 2-level checkpoint switch added
64        (tested in EXP. 1 of natl_box_adjoint)
65      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
66    o SVD
67      * first complete, non-hacked version for SVD calculations
68      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
69        performed via direct access files admtlm_vector.it????
70        (via ctrl_[un]pack)
71      * optimcycle is used for ARPACK iteration counter
72        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
73      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
74        and add linear transforms where necessary
75      * controls are initial/final SST, SSS (can be extended; need to check
76        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
77    o mdsio: filename info to both stderr, stdout
78    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
79      from sign change
80    
81    checkpoint55j_post
82    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
83      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
84    o add consistent build directories and .cvsignore files to verification
85    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
86    o make all subroutines 30 or less characters in length for certain older
87      compilers to work (a thorough search only turns up two routines in
88      pkg/ptracers)
89    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
90      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
91    
92    checkpoint55i_post
93    o change arrays for total vertical diffusivity (2.D if explicit,
94      3.D if implicit) ; each ptracer uses its own background value.
95    o added mnc/NetCDF output capability to ocn_compon_interf
96      - added bits to verification/cpl_aim+ocn so that it can run on
97        ITRDA and other clusters without the mpirun "-wd" option
98    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
99      configuration
100    o give MNC the ability to create additional files rather than
101      exceeding a specified file size limit "MNC_MAX_FILESIZE"
102      - the default is just less than 2GB which is a practical limit
103        on many systems
104    o Compute the non-local term using either KPP vertical diffusivity (=default)
105       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
106    
107    checkpoint55h_post
108    o add verification test "vermix"
109    o remove all the *_ioinc flags and replace with the single global
110      outputTypesInclusive flag
111    o allow to set a vertical profile of vertical diffusivity for T & S
112    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
113    o useMNC moved from data.mnc to data.pkg
114    
115    checkpoint55g_post
116    o Renaming carbon AD experiments to comply with testreport conventions
117    o Updating adjoint of Held-Suarez hs94.1x64x5
118    o Fixing directives for non-ECCO forward_step, after ECCO directives
119      have been fixed to avoid recomp. of do_oceanic_phys
120      Works well for global_ocean.90x40x15,
121      but recomp. issue remains for carbon
122    o Updating adjoint output for natl_box_adjoint after
123      pkg/ecco has been modified (see taga c55d_post)
124    
125    checkpoint55f_post
126    o rename to timeave_init_fixed
127    
128    checkpoint55e_post
129    o some delicate re-shuffle of store directives to avoid one
130      extra call of do_oceanic_physics
131      affects ecco_the_main_loop.F, do_oceanic_physics.F
132      checkpoint_lev1_directives.h
133    o NB: this may break global_ocean adjoint temporarily,
134      but it is clear how to fix it. Will do later, need this now.
135    
136    checkpoint55d_post
137    o ECCO specific cost function terms (up-to-date with 1x1 runs)
138    o ecco_cost_weights is modified to 1x1 runs
139    o modifs to allow observations to be read in as
140      single file or yearly files
141    o enable to read exf forcing fields as either
142      single file or yearly files (flag useExfYearlyFields)
143    checkpoint55d_pre
144    
145    o switch between 2-level and 3-level checkpointing
146    o add ability of MNC to write local and "partial" (eg. 2D slices where
147      the full 3D field is never actually stored) arrays to NetCDF files
148      with the correct (that is, the complete multi-dimensional) set of
149      array indicies
150      - used in mom_vecinv() to write the diagFreq output
151      - tested (demonstrated) in verification/aim.5l_cs
152    o further mnc-ification
153      - add verification/lab_sea to the list with mnc setups
154      - fix undefined mnc v-names in cd_code
155      - add kpp to mnc output (both snapshot and timeave)
156    o non-hydrostatic code
157      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
158        in calc_gw.F
159      - defaults to viscAh
160      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
161        friction or Leith) in non-hydrostatic mode, as long as there is
162        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
163    o pkg/cost
164      extend simple cost functions to treat time mean quantities
165      (T,U,V) via cost_accumulate_state from cost_tile
166    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
167        be 2 times larger than the minimum size the advection scheme requires.
168        now get a perfect conservation of salt in advect_cs test-exp (updated)
169    o GGL90 (Gaspar's TKE mixed layer)
170      - add horizontal diffusion of TKE, requires exchanges in
171        do_fields_blocking_exchanges, horizontal diffusivity is zero by
172        default. In OPA there is no horizontal diffusion of TKE but the
173        mixing coefficients are computed from a horizontal average of TKE of
174        6 points or so. I think that diffusion has a little more physical
175        justification.
176      - clean up ggl90_calc in the hope of reducing memory usage (this hope
177        was in vain)
178      - mask tke-variable in ggl90_init
179    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
180    o fix biharmonic diffusion on CS-grid.
181    o more obcs stuff
182      - added obcs_external_fields_load as an alternative to the EXF-pkg option
183        for reading boundary values. This routine is called from
184        obcs_prescribe_read
185      - updated obcs_check
186      - changed sponge layer relaxation parameter units for days to seconds
187      - turned off sponge layer by default
188      - changed argument list of OBCS_CALC to myTime+deltaTclock
189      - fixed about 35 bugs in obcs_external_fields_load
190    
191    checkpoint55c_post
192    o obcs stuff
193      - new runtime flags useOBCSprescribe, useOBCSbalance
194      - re-arranged obcs_calc
195      - moved exf_getobcs to obcs_prescibe_read
196        obcs_prescibe_read is called after ORLANSKI stuff
197        and independent of it (executable can contain all).
198      - updated obcs_check
199      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
200        These may be necessary only if tangential velocities are
201        prescribed at OB, not sure, needs testing.
202    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
203      which simplifies the calls and passes the ifc check-bounds test
204    
205    checkpoint55b_post
206    o add a 2D scalar, Z location, exchange_2 routine.
207    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
208      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
209      affects advect_cs results (for the wrong reason): update output.txt
210    o use a more standard discretization for biharmonic viscosity ;
211     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
212      affects results of dome set-up: update output.txt
213    o fix gad_advection.F (CubedSphere part), back to version 1.23
214    o fix bug in mom_vi_del2uv.F (CubedSphere part).
215    
216    checkpoint55a_post
217    o merged code to
218      * prescribe/read time-dependent open boundaries
219        (works in conjunction with exf, cal)
220      * sponge layer code for open boundaries
221      * each boundary N/S/E/W now has its own CPP option
222        (healthy for the adjoint)
223    
224    checkpoint55
225    o up-to-date adjoint of previous breaks
226      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
227      - global_ocean_ebm: adjoint still needs fix (TLM ok)
228      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
229      - carbon: * remove tr1-related adjoint verification
230                * add ptracer as control variable
231    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
232      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
233    
234    checkpoint54f_post
235    o in verification/carbin/ remove experiment related to
236      ALLOW_PASSIVE_TRACER (array tr1 etc)
237      code_ad/ input_ad/ results_ad
238    
239    o add two new packages
240      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
241        + subject to optimization (memory)
242      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
243        + subject to reordering (many GOTOs in the original code)
244        + so far opps is called for every (i,j) point, and then operates in
245          the vertical; one may want to reorder the scheme in order operate in
246          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
247          fields)
248    o overhaul of IO so that we now have flags for MDSIO and/or MNC
249      - all verification tests compile and run with linux_ia32_g77
250      - defaults are compatible with current input files--nothing
251        should change if you were not previously using MNC
252      - MNC output has been added in numerous places (eg. timeave)
253        but there are still a few writes not yet do-able with MNC
254        (this is in progress)
255      - flags now allow for either/or/both use of MDSIO and MNC and
256        documentation will soon follow
257      - numerous small formatting cleanups for ProTeX
258    o add version info (via BUILD_INFO.h) to MNC and stdout
259    
260    checkpoint54e_post
261    o add two new packages
262      - pp81 (Packanowski and Philander, 1981), Richardson number and
263        stratification dependent mixing
264      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
265      - these scheme operate in a similar manner as KPP (without ghat, of
266        course), however there is only one diffusivity that is used for both
267        temperature and salinity (and passive tracers)ç
268    o add offline package
269    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
270      provided by Stephanie Dutkiewicz
271    o genmake2: add ability to search for C compilers and cleanup test output
272      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
273    
274    checkpoint54d_post
275    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
276    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
277      leading to additional shift by 5 days each year of integration
278       (i.e. leading to considerable offset over the years)
279    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
280    o start with no AB and no initial filtering (staggerTimeStep):
281      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
282    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
283      (external loading & cpl import/export stay in forward_step.F)
284    o update coupling interface to work with new staggerTimeStep
285    o change MDSIO ptracers_pickup.
286    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
287    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
288    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
289    
290    checkpoint54c_post
291    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
292      this affects (truncation error) output.txt of test-exp:
293       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
294    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
295    o change Qnet to always be the net heat flux, (+upward).
296      affects (truncation error) output of natl_box exp.: updated
297    o define the max number of passive tracers in PTRACERS_SIZE.h
298    o start to test mnc routinely in exp0
299    o add sea-ice loading (sIceLoad) as a new forcing field.
300    
301    checkpoint54b_post
302    o add testreport "-j JOBS" option for parallel builds (tested and pretty
303       impressive on Altix and Opteron systems)
304    o diagnostics can now write NetCDF files through the mnc package
305    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
306    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
307    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
308      affects (truncation error) output of lab_sea & natl_box exp.: updated
309    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
310    
311    checkpoint54a_post
312    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
313    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
314    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
315    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
316      + internal_wave (shift in writing cg2d_ini_res)
317    checkpoint54a_pre
318    
319    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
320      - modified verification/lab_sea and natl_box_adjoint accordingly
321    
322    checkpoint54
323    checkpoint53g_post
324    o prepare splitting of thermodynamics: store convect.counter in common block
325    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
326      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
327    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
328    o new parameter "nShapS": allow to treat differently S from T (nShapT)
329    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
330    o restore adjointability
331    
332    checkpoint53f_post
333    o modifications that affect AIM experiment results (update output.txt):
334      - no advection of S at top interface Nr (pkg/generic_advdiff)
335      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
336    o AIM pkg:
337      - include stability function into surf.Flux derivative relative to Tsurf
338      - calculate clear-sky radiation & surface temp. change (for diagnostics)
339    
340    checkpoint53e_post
341    o merged cylindrical coord configuration
342    o added rotating_tank experiment
343    checkpoint53e_pre
344    
345    checkpoint53d_post
346    o faulks upgraded: re-generate output.txt that have changed:
347       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
348    o Added Bryan and Lewis, 1979, vertical diffusivity profile
349    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
350    o added Sadourny discretization of Coriolis
351      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
352      - re-enabled use of omega3 (useAbsVorticity)
353    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
354      vector-invariant equations
355      - note: does *NOT* yet use same variable visc. for no-slip BC's.
356    o recoded the lateral boundary conditions for non-hydrostatic w, this time
357      hopefully without new bugs
358      - still to do: biharmonic friction for non-hydrostatic w
359    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
360    o regenerated output for global_ocean_ebm (using -ieee)
361    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
362      of mom_common/
363      - simple re-arrangement of instructions within computing loop
364    checkpoint53d_pre
365    
366    checkpoint53c_post
367    o new version of coupler for AIM+thSIce and Ocean models
368     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
369     - land: change Evaporation of snow
370     - aim with thSIce: fix bug in snow-precip.
371    o changes to calc_gw.F
372     - bug fix for w^2 term near the bottom boundary
373     - (hopefully) improve the lateral slip boundary condtions for use with
374        partial/looped cells
375      - because the bug fix changes two verification experiments anyway (exp5
376        and plume on slope), change the lateral boundary condition from half slip
377        to the value of no_slip_sides
378    o ebm package wasnt quite up to the parallel task. Fixed that.
379    o Adjoint of EBM package + verification
380      * TLM OK
381      * ADM not sufficient accuracy yet (needs further testing)
382    
383    checkpoint53b_post
384    o Commiting new energy balance model to repository
385      * package is pkg/ebm
386      * verif. is verification/global_ocean_ebm
387      * references are in ebm_driver.F
388    C      * X. Wang, P. Stone and J. Marotzke, 1999:
389    C        Global thermohaline circulation. Part I:
390    C        Sensitivity to atmospheric moisture transport.
391    C        J. Climate 12(1), 71-82
392    C      * X. Wang, P. Stone and J. Marotzke, 1999:
393    C        Global thermohaline circulation. Part II:
394    C        Sensitivity with interactive transport.
395    C        J. Climate 12(1), 83-91
396    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
397    C        Destabilization of the thermohaline circulation
398    C        by atmospheric eddy transports.
399    C        J. Climate 7(12), 1870-1882
400    o Will need long integration testing.
401    checkpoint53b_pre
402    
403    o created pkg/mom_common in preparation for variable viscosity code
404    o renamed and split ini_mnc_io
405    o pkg/land: only liquid water can diffuse or run-off
406    o AIM using land: soil wetness availability account for snow
407    o added printMapIncludesZeros to EEPARMS namelist
408    
409    checkpoint53a_post
410    o restore TAMC compatiility for exf_constants.h
411      (no usage of _d in .h)
412    o Additional storing in KPP in an attempt to fix
413      TAMC problem with adjoint of KPP code.
414      (no success...)
415      Identical code works fine with TAF.
416    o Fixed verification/natl_box_adjoint experiments.
417      Initial conditions for Experiments 4 and 5 are now
418      set to "SEAICE_initialHEFF=0", which is more reasonable,
419      and hence gives results closer to that of Experiment 2.
420      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
421    
422    checkpoint53
423    o stable checkpoint with up to date adjoint
424      TLM tests only run for 1st grdchk at the moment. Its unclear if
425      this is a code problem or a problem with resetting code for g_
426      variables that is being autogenerated wrong.
427      Otherwise:
428       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
429       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
430         are both still in chaos following their security messes.
431    
432    checkpoint52n_post
433    o various build (mostly genmake2) changes including:
434      - ability to build/run more easily within Cygwin and MacOS X
435      - more complicated Makefiles with a stronger dependence on Gnu Make
436    o pkg/seaice modifications
437      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
438        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
439        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
440      - changed proxy for geostrophic velocity and updated
441        verification/lab_sea/results/* accordingly
442      - removed ADI dynamic solver from pkg/seaice
443      - replaced all occurrences of 1/CSTICE or 1/CSUICE
444        they caused a segmentation fault under certain circumstances
445      - removed unused field WATR
446    o bug fix in exf-package:
447      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
448         now reflect that.
449    o small fixes in the cal-package:
450      - set reference date to first of January for the 'model'-calendar
451      - failing of cal_CheckDate in cal_FullDate now actually results in a
452        warning
453    o small modifications in exf-package to increase flexibility:
454      - change climtempfreeze from a constant to a runtime parameter that
455        is specified in data.exf_clim (default = -1.9)
456      - introduce runtime parameter windstressmax (default = 2.0) that is
457        specified in data.exf
458    o fix in pkg/thsice:
459      - update Evap (Tsf changes) to be consistent with Latent heat flux
460      - maintain snow precipitation unchanged (even if Tsf >=0).
461     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
462    
463    checkpoint52m_post
464    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
465      this does not change any of the results, because myIter=0 in swfrac always
466      lead to jwtype=2 (the default anyway), but the call makes little sense
467      as a default
468    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
469    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
470      atmospheric model (AIM) to use it ; add a "slab ocean" component.
471    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
472    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
473    o extending useSingleCpuIO option to work with new exch2 I/O format
474      - old-style, missing-tile I/O is still accessible by defining CPP
475        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
476    o monitor package can write to NetCDF files and/or STDOUT
477    o fix re-definition bug in MNC_GRID_INIT_ALL()
478    o doc/api_reference added
479      - a framework for building an API Reference Manual using all
480        the "protex" comments embedded in the code
481      - see pkg/generic_advdiff, pkg/mnc for examples
482    o MNC:
483      - make myThid the last argument for all subroutines
484      - new default for the grid files: NO halos
485      - add useMNC and other run-time flags
486      - separate per-file-group handling of the unlimited dimension
487      - early initialization of MNC w/ flags read at the eeboot stage
488        and lookup tables set in initialize_fixed
489      - write all MNC output to a freshly-created directory
490    o thermodynamics sea-ice (thsice) is now tested with testreport.
491    o test exp. advect_cs: use the standard cs32 grid ; update output.
492    o Added functionality to grdchk:
493      pick global i,j,k position (or nearest wet) where to perform check.
494    
495    checkpoint52l_post
496    o new land formulation:
497      a) use ground enthalpy as prognostic variable to ensure exact
498         energy conservation.
499      b) account for water temperature and for latent heat of freezing
500         in all processes (rain, run-off, ground storage)
501      c) compute surface and ground temperature implicitly.
502    o aim_v23 modification for new land model:
503      a) Treat separately land / ocean / sea-ice surface fluxes
504         to allow implicit computation of land & sea-ice surface temp.
505      b) add snow precipitation.
506    checkpoint52l_pre
507    
508    o fix problem (when 1 tile is empty) in min/max monitor.
509    o fix bug in timeAve (u,vZetatave in common block)
510    o no restoring terms under ice for pkg/seaice
511    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
512    o bug fix for pkg/seaice pickups
513    o change MNC call locations and add coordinate attributes
514    o mask vorticity at the corner ; affects global_ocean.cs output
515    o fix ini_curvilinear_grid ; test CS experiments with mpi
516    o aim.5l_cs: modify sea-ice fraction input file ; update output
517    o exf: Adding simple range check routine for exf fields after read
518    
519    checkpoint52k_post
520    o removed top-level directory "diags"
521      - we migrated these functions to pkg/timeave a long time ago
522    o fixed bug introduced in pkg/monitor
523    o accuracy ctrlprec = 32 insuffient for gradient checks using
524      averaged fields (I/O via cost_averages)
525      -> use ctrl.h in active_file*.F to control I/O precision.
526    o paramter list of CALL ADTHE_MAIN_LOOP
527    o added initial do_the_model_io to ecco
528    o set all ...Freq to zero after cost_final
529      taveFreq, dumpFreq, pChkptFreq
530    o MAIN and ECCO differentiability restored
531    
532    checkpoint52j_post
533    o fix nchklev in tamc.h for global_ocean...
534    o Bringing flow and store directives up-to-date
535    o Really weird thing!
536      call do_the_model_io from the_main_loop with parameters
537      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
538      TAF places a faulty re-call of initialise_varia
539      after cost_final call which should not be there!
540    checkpoint52j_pre
541    
542    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
543      error messages
544    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
545    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
546      debug output
547    o modfied mdsio_writefield.F to handle non-global files under exch2
548    o update AIM Cubed-Sphere exp (aim.5l_cs):
549      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
550    o update AIM Equatorial Channel exp:
551      use standard aim_v23 pkg and change the SST fields to be more realistic.
552    o globalFile now works with exch2
553    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
554      mon_vort3.F to make exch2 friendly with >1 tile per cube face
555    o limit timeave output for hi-res integrations
556    
557    checkpoint52i_post
558    o removed CPP_EEOPTIONS.h from verification/*/code
559    o updated the tiling for global_ocean_pressure
560    checkpoint52i_pre
561    
562    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
563      the old pkg/aim).
564    
565    checkpoint52h_pre
566    o shortened offending lines in exch2_send_rx?.template
567    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
568    o genmake2: add build & execute test for NetCDF code
569    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
570      old grid files, moved CPP_EEMACROS.h to pkg/exch2
571    o added useSingleCPUIO flag to monitor.F and mon_out.F
572    o added temporary hack for sea-ice dynamics on the cube:
573      metric terms are ignored and it is assumed that
574      there is no sea-ice on cube faces 1, 2, 4, and 5.
575    
576    checkpoint52f_post
577    o added exch2 cube routines to pkg/exch2
578    o modified hs94.cs-32x32x5 to use it
579    o added new grid files to hs94.cs-32x32x5
580    checkpoint52f_pre
581    
582    checkpoint52e_post
583    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
584      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
585    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
586      to work with implicit vertical advection and AB ;
587    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
588    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
589     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
590    checkpoint52e_pre
591    
592    o fix bug in impldiff when Nr=1 or Nr=2.
593    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
594    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
595    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
596      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
597    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
598    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
599    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
600    
601    checkpoint52d_post
602    o re-tiled many expts to allow comparison in multi-processor mode
603      - updated output accordingly
604      - changed hs94.128x64x5 to use intial T from file rather than use the
605        random number generator
606    o add infrastructure in model routines for fizhi and gridalt packages
607    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
608    o changes to permit hi-res, cubed-sphere, configuration
609      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
610      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
611      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
612        of surface winds for the cube
613      (A verification experiment, based on global_ocean.cs32x15, but with
614       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
615       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
616       complete with example surface forcing files and matlab scripts to look
617       at the output and compare it with that of global_ocean.cs32x15.)
618    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
619       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
620       to conform to the common rule.
621    o check-in the first version of the coupler + interfaces for multi-components
622       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
623       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
624       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
625       - ocean and atmos. share the same horizontal grid (no interpolation).
626       - exchanges between component and coupler is done in forward_step
627    o new verification experiment, cpl_aim+ocn:
628       coupled ocean - AIM atmosphere on cs32 grid.
629    
630    checkpoint52d_pre
631    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
632    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
633    
634    checkpoint52c_post
635    o Fixing OPTIONS files for use of exf:
636      - ALLOW_ECCO not needed
637      - ECCO_CPPOPTIONS.h should not be included from
638        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
639        as has been the case in the past
640      - All cal/exf related options are currently set in
641        single header file. Should remain so until we
642        agree on a consistent new policy.
643    o Removed all CPP options for cal package.
644      cal has no more CPP options.
645    o modified STOREs in GAD_ADVECTION
646    o corrected key comp. for passkey
647    
648    checkpoint52b_post
649    o new version: "thsice" of thermodynamic sea-ice pkg:
650     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
651     - modify fluxes but do not change theta directly;
652     - light cleaning of bulk_force pkg (still needed with thsice).
653     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
654       + output_thsice.txt to test thsice & bulk_force pkgs.
655    o put back grid & coriolis monitor output.
656    checkpoint52b_pre
657    
658    o call "do_the_model_io" at the beginning (=> dump initial state)
659    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
660    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
661      (need info on NUMBER_OF_PTRACERS)
662    o missing PTRACERS headers in some routines
663    o default tamc.h in pkg/autodiff supposed to crash
664      to ensure proper customization
665    
666    checkpoint52a_post
667    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
668      - moved surfaceTendencyTice from pkg/seaice to main code
669      - subroutine FREEZE_SURFACE now limits only surface temperature
670        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
671        => new output.txt for global_ocean.cs32x15 & global_with_exf
672      - keep the old version of FREEZE for backward compatibility;
673        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
674      - corresponding modifs for TAF directives
675    o added surface flux output variables to TIMEAVE_STATVARS
676    o time-averaged output for pkg/ptracers
677    o fix problem with ECCO-related divided adjoint
678      snapshot file was missing some ad-variables,
679      but no warning issued by TAF
680    
681    checkpoint52a_pre
682    o some bug fixes for #undef REAL4_IS_SLOW
683    
684    checkpoint52 = ecco_c52_e35
685    o after testing adjoints of checkpoint51u_post
686    
687    checkpoint51u_post
688    o this is the post-merge tag of the ecco-branch
689      (needs another clean checkout and re-testing)
690    o various natl_box_adjoint configs and results
691      but no input fields
692    o obcs adjoint not yet merged!
693    o adding ECCO global 1x1 and 2x2 degree configs
694    o updated/extended some store directives for seaice
695    o pkg/ecco now containes ecco-specific part of cost function
696    o top level routines the_main_loop, forward_step
697      supersede those in model/src/
698      previous input data.cost now in data.ecco
699      (new namelist ecco_cost_nml)
700    o in ctrl/ cleaned some cross-dependencies and updated CPP options
701    
702    checkpoint51t_post
703    o this is the pre-merge tag of the ecco-branch
704    
705    checkpoint51s_post
706    o cleanup: removed various obsolete #define-s
707    o pkg/grdchk
708      - renamed 'ph-grd 3' to 'grad-res'
709      - merged from ecco-branch
710        (remaining bug fixes for obcs gradient checks)
711      - additional high-precision output for testreport
712        (grep for 'precision_grdchk_result')
713    
714    checkpoint51r_post
715    o cleaned up or removed CPP_OPTIONS.h files
716    o updated results for some of the tests to reflect the new
717      optfiles (-ieee: -O0 instead of -O3)
718    
719    checkpoint51q_post
720    o cd_code:
721      - moved cd_scheme.F -> cd_code_scheme.F
722      - separate read_checkpoint from cd_code_ini_vars.F
723      - separated cd_code part from write_checkpoint
724      - updated AD_SOURCE, generated .flow
725      - added CD_CODE_VARS.h to the_main_loop
726      - Moving cd_code specific store dir.s to pkg/cd_code
727    o ctrl package totally restructured
728      - pack/unpack now optional and decoupled from
729        xx_/adxx_ I/O
730      - ctrl_pack/unpack cleaned
731        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
732      - confined inclusion of AD_CONFIG.h to where necessary.
733    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
734    
735    checkpoint51p_post
736    o create initial cd_code package
737      - WARNING: the initialization of fields within packages
738        is broken because INI_FIELDS (where READ_CHECKPOINT is
739        called) is called *before* PACKAGES_INIT_VARIABLES.
740        This seems to be backwards since
741        1) its important to initially zero the entire field including
742           the "halo" region
743        2) zeroing needs to be done *before* reading pickup info
744           and the pickup call might or might not happen in any
745           particular run
746      - this needs an overhaul for R2
747    o cleanup verification/*/code/GMREDI_OPTIONS.h
748    o cleanup testreport
749    
750    checkpoint51o_post
751    o bringing AD-related verif's up to date with genmake2
752      - carbon/
753      - global_ocean.90x40x15/
754      - hs.94.1x64x5/
755      - (front_relax/ )
756    o (more) consistent directory structure for AD-related verif.'s
757    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
758    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
759    o bug fix in find_alpha.F for MDJWF:
760      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
761        change rho -> rho-rhoConst
762      - replace call find_rho to find_rhonum
763    o initialisation of rFlx extended to full array (required by TAF)
764      and shifted to thermodynamics
765    o removed PTRACERS.h in ptracers routine
766    o added surfacetendencyPtr to S/R parameter list pracers_forcing
767    o Correcting initialisations for fVerU, fVerV.
768    o helping TAF to recognize dependency on kUp for
769      fVerU, fVerV
770    o Replacing delZ by delR in pkg/ctrl/
771    checkpoint51o_pre
772    
773    o undid all of cp51 pending some cleanups and discussion
774    o added the [#include "AD_CONFIG.h"] statement to all files that need
775       it for adjoint/tl #defines
776     o re-worked the build logic in genmake2 to support AD_CONFIG.h
777     o removed tools/genmake since it no longer works
778    
779    checkpoint51n_post
780    o modifications to make FREEZE flux visible to pkg/kpp
781      - moved surfaceTendencyTice from pkg/seaice to main code
782      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
783      - subroutine FREEZE now limits only surface temperature
784        (this means new output.txt for global_ocean.90x40x15,
785         global_ocean.cs32x15, and global_with_exf)
786    o added surface flux output variables to TIMEAVE_STATVARS
787    
788    checkpoint51n_pre
789    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
790    o added [#include "AD_CONFIG.h"] to all files that use the following
791      defines:
792      - ALLOW_ADJOINT_RUN
793      - ALLOW_TANGENTLINEAR_RUN
794      - ALLOW_ECCO_OPTIMIZATION
795    
796    checkpoint51m_post
797    o incorporating changes to get TAMC/TAF working in genmake2
798      - added new TAMC/TAF targets to the Makefile
799      - various cleanups related to package handling
800      - these changes should have no impact on the forward model
801    
802    checkpoint51l_post
803    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
804     - faster algorithm for cal_addtime.F
805     - higher precision arithmetic, where needed
806     - pkg/exf *startdate variables changed from calendar date to
807       model integration time
808    
809    checkpoint51l_pre
810    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
811    o enable to apply restoring on S & T only in a latitude band.
812    o update output (external_forcing_surf modif. change truncation errors)
813       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
814    
815    checkpoint51k_post
816    o change default to: useNHMTerms=.FALSE.
817     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
818       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
819     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
820        exp1, ideal_2D_oce
821     - change data file of oceanic exp (leave the results unchanged for now)
822       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
823    o set gravitySign automatically according to the vertical coordinate used
824      (and change sign: back to "logical" value: +1 when R increases downward)
825    o added an include barrier to the default CPP_OPTIONS.h and
826      removed the #include "PACKAGES_CONFIG.h" from it
827    o fix a bug in mom_fluxform (from chk51j_post)
828    
829    checkpoint51j_post
830    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
831    o adjusted some flow directives (dynamics, thermodynamics)
832    o added cubed-sphere case to test cost function
833    o heckpoint_lev?_directives.h now include
834      pkg-specific directives, whenever those are enabled.
835    o Moving pkg-specific flow directives to corresponding pkg
836      Moving pkg-specific differentiation list to corresponding pkg
837      Moving pkg-specific checkpoint-lev storing to corresponding pkg
838      ---> conventions are
839           - pkg_ad.flow
840           - pkg_ad_diff.list
841           - pkg_ad_check_lev?_dir.h
842    
843    checkpoint51i_post
844    o merge of the branch-genmake2
845      - knowingly breaks the older genmake
846      - automatic generation of all ALLOW_${PKG_NAME} defines
847      - new testreport supersedes older testscript
848    o large number of package inclusion and header cleanups
849    checkpoint51i_pre
850    
851    o new output for adjoin of global ocean vector invariant
852    o fix for checkpoint of thermodynamic seaice and bulk_force
853    o Steph gchem various cleanups
854    
855    checkpoint 51h_pre
856    o fixed some single quotes
857    o modify gchem pkg to be more versatile
858    o modifications to clean up dic pkg
859    o add pkg/cfc
860    
861    checkpoint51g_post
862    o provide links for ARPACK and ADM*TLM
863    o start removing verification/vero/
864    o update AD-related stuff
865      (in particular some IF-statements in model/src/ routines)
866    o adding to verification/global_ocean.90x40x15/ adjoint of
867      vector invariant setup
868    
869    checkpoint51f_post
870    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
871    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
872      of tracer Green's fucntions for ocean inversion project.
873    
874    checkpoint51f_pre
875    o Added on-the-fly spatial interpolation capability
876        "USE_EXF_INTERPOLATION" to pkg/exf.
877      - This is a temporary Cartesian-grid hack until
878        the super-duper ESMF coupler becomes available.
879      - See verification/global_with_exf/README for usage example.
880      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
881        flags and modified pkg/seaice accordingly.
882    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
883        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
884        non-local transport term.
885    
886    checkpoint51e_post
887    o pkg/mom_vecinv:
888      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
889      - add time-ave diagnostic of vorticity advection.
890    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
891    o atmospheric geopotential: - include water vapor effect;
892                                - use p^kappa in p* scaling.
893    o land pkg: read initial state from files.
894    o AIM : add stratospheric drag in the upper level
895    
896    checkpoint51d_post
897    o change function ILNBLNK (=> last non-blank char.) to return zero
898      (instead of the string length) when the string. char is empty
899    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
900    o modif's to restore TAMC compatibility
901      - avoid "_d" constructs in PARAMETER declarations
902      - avoid interrupting lines by comment lines
903    o Use cluster local disks for purely local I/O
904      vs. globally visible disks needed for ctrl stuff
905      (merged from ecco-branch)
906      - new active_file_loc... and mdsio_..._loc routines
907      - affected packages: autodiff, ctrl, grdchk, mdsio
908    
909    checkpoint51c_post
910    o introducing integer flag debugLevel
911      - debLevZero: suppress all output
912      - debLevA: standard
913      - debLevB: equivalent to current debugMode=.TRUE.
914    o introducing pathname variable mdsioLocalDir for mdsio
915      that can be specified at runtime
916      (relevant for cluster I/O to local disk)
917    `
918    >>>checkpoint51b_post
919    adjoint of ptracers
920    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
921    o extended state in checkpoint_lev?, etc.
922    o alternative ctrl/cost with tr1 or ptracer
923    o new comlev1_bibj_ptracers
924    o new ptracers.flow
925    o made ptracers_forcing same as external_forcing_s
926    o added verification for adjoint with ptracers
927      - adm. grdchk fail so far
928      - tlm. grdchk OK
929      - checked tapelev/comlev recomputations: OK
930    <<<checkpoint51b_pre
931    
932    checkpoint51a_post
933    o added code for biogeochemistry package
934      - new pkgs: dic, gchem
935      - new subroutine in ptracers
936    o modify code for biogeo packages
937      - in model/src and pkg/ptracers
938    
939    checkpoint51
940    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
941      - autodiff, ctrl, exf, grdchk, seaice
942      kept separate packages
943      - cost, ecco, obcs
944    o updating verification/internal_wave, verification/lab_sea
945      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
946    
947    checkpoint50i_post
948    o Preparing next differentiable checkpoint and sync
949      of MAIN vs. ecco-branch
950      - 1st step: this one is differentiable
951      - 2nd step: next(! not this) checkpoint will have updated packages
952                  from ecco-branch)
953    
954    checkpoint50h_post
955    o new package "land": provide surface BC for AIM.
956    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
957    o AIM: use true log-P extrapolation for near surface temp (= as in
958        F.Molteni paper) ; update aim.5l_cs output.
959    o New variable in PARM03 for more flexible pickups
960    o somewhat cleaned package initialisation sequence for
961      ctrl/ cost/ ecco/ in packages_... routines
962    
963    checkpoint50g_post
964    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
965      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
966      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
967        made the default because of faster convergence than ADI
968    
969    checkpoint50f_post
970    o exf totally restructured
971      - replaced all exf_set_ routines by one generic exf_set_gen.F
972        and made sure it's still differentiable
973      - split exf_getffields.F into new exf_bulkformulae.F
974      - exf_inscal_/exf_outscal_ suffixes consistent with field names
975      - updated adjoint/makefile and relevant verif. accordingly
976    
977    checkpoint50f_pre
978     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
979          + change Evap over land. (update aim.5l_cs output)
980     o added missing .cvsignores and made uniform across expts
981     o changed configuration of tidal_basin_2d expt
982     o added pkg/debug functions for tracing code in fatal crashes
983     o tidied pkg/monitor to use MONITOR_OPTIONS.h
984     o new fn in pkg/monitor to stop model if solution grows too big
985     o removed lots of single quotes from comments
986    
987    checkpoint50e_post
988    o make KPP work with PTRACERS
989     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
990       nearly a copy of kpp_transport_s
991     - there is no analogue to SurfaceTendencyS, so I have to use
992       gPtr(of the surface layer) instead
993    o add a new platform SunFire+mpi (SunFire 15000) to genmake
994    checkpoint50e_pre
995    
996    checkpoint50d_post
997    o change kpp output from multiple-record state files to single-record state
998      files analogous to write_state.F
999    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1000      analogous to the cg2d-related output.
1001    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1002      so that writing to internal file fn (with length 512) fails.
1003    checkpoint50d_pre
1004    
1005    checkpoint50c_post
1006    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1007    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1008    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1009    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1010    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1011    
1012    checkpoint50c_pre
1013    Merging from release1_p13:
1014    o bug fix for pkg/seaice dynamic solver
1015    o Added SEAICE_initialHEFF to pkg/seaice
1016    
1017    checkpoint50b_post
1018    o store u*,v* in gU,V instead of in guNm1,gvNm1
1019    o in order to put the momForcing out of the Adams-Bashforth:
1020      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1021      to timestep.F
1022    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1023    o re-generate output for highly sensitive test-exp:
1024       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1025    
1026    checkpoint50b_pre
1027    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1028    o corrected CPP option mismatch in exf_Bulk... functions for case
1029      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1030    
1031    checkpoint50a_post
1032    o Bug fix for merging between c50 and KPP.
1033      ikey was passed from thermodynamics to kpp_calc via
1034      common block rather than being recomputed in kpp_calc,
1035      in contradiction with new key itdkey.
1036      New key ikppkey created, and tamc.h headers updated.
1037    
1038    checkpoint50
1039    - 2nd step of merge with ecco-branch:
1040      merge changes in ecco-branch back into main trunk
1041    - bug fix in find_alpha
1042    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1043    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1044    - merged some sliced AD support routines
1045    
1046    checkpoint49
1047    merged from ecco-branch:
1048    o exf:
1049      - Enable initialisation of forcing fields to constant
1050        (runtime) values.
1051      - in exf_getffields.F
1052        Reduce i-/j-loop to interior domain, discarding overlaps.
1053        That also fixes wrong TAF-key computations for key_1, key_2
1054        with bulf formulae.
1055      - exf_init.F modify #ifdef for exf_init_evap
1056      - exf_getffieldrec.F, ctrl_getrec.F
1057        The following INT-usages are not safe:
1058          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1059          fldcount = int(fldsecs/fldperiod) + 1
1060        and were modified.
1061    o autodiff: checkpoint_lev...
1062      - updated storing for bulk formulae (some arrays were missing)
1063      - added state for seaice package
1064      - synchronized with main branch
1065    o DIVA:
1066      Modif.s in
1067      - the_main_loop.F
1068      - the_model_main.F
1069      and added cost_final_restore.F cost_final_store.F
1070      o With these changes, it is possible to fully separate
1071        the first forward run to compute the cost function (mdthe_main_loop)
1072        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1073        into separate model executions.
1074        This enables better tuning of DIVA to given queue sizes.
1075      o Loss of cost function value in consecutive DIVA runs is
1076        fixed by storing to 'costfinal' file.
1077      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1078        beginning/end of adjoint integration is accounted for.
1079      The current changes apply to TAF-1.4.26.
1080      TAF has one remaining bug, requiring one manual change
1081      (see MITgcm manual).
1082    o cal: synchronized between MAIN and ecco-branch
1083    
1084    checkpoint48i_post
1085    o Changes to restore differentiability of code w.r.t. previous tag
1086      (mostly adding new routines to make list and replacing
1087      pressure by totPhiHyd).
1088    o Updated and merged grdchk package
1089      - has both ADM and TLM checks
1090      - works for single- and multi-proc.
1091      - output cleaned
1092      - worked successfully for parallel DIVA
1093    o genmake:
1094      - Adding -platform=SP4
1095      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1096    o Modif. for DIVA:
1097      ctrl_unpack should not be called in intermediate DIVA interval.
1098      (similar thing would apply for active files such as
1099      tbar, sbar, psbar, which should not be reinitialised;
1100      only relevant for ecco-branch)
1101    
1102    checkpoint48h_post
1103    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1104    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1105    o Added SEAICE_initialHEFF to pkg/seaice
1106    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1107    
1108    checkpoint48g_post
1109    --- EOS:
1110    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1111      store total Potential in totPhyHyd for diagnostics & EOS.
1112    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1113    --- Pressure/geopotential gradient:
1114    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1115    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1116      ( changes results of global_ocean_pressure )
1117    o NLFS + z-coord.: add eta*Rho' contribution.
1118    o accurate phiHyd when using interface-W at the middle between 2 centers
1119     ( changes results of ideal_2D_oce )
1120    o includes r* 2nd term in potential gradient.
1121    
1122    checkpoint48f_post
1123    Merging from release1_p12:
1124    o Modifications for using pkg/exf with pkg/seaice
1125      - improved description of the various forcing configurations
1126      - added basic radiation bulk formulae to pkg/exf
1127      - units/sign fix for evap computation in exf_getffields.F
1128      - updated verification/global_with_exf/results/output.txt
1129    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1130      (SBO) core products, including oceanic mass, center-of-mass,
1131      angular, and bottom pressure (see pkg/sbo/README.sbo).
1132    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1133      to avoid negative values in shallow regions.
1134      - updated verification/natl_box/results/output.txt
1135      - updated verification/lab_sea/results/output.txt
1136    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1137    o Added useSingleCpuIO option (see PARAMS.h).
1138    o Updated useSingleCpuIO option in mdsio_writefield.F to
1139      work with multi-field files, e.g., for single-file pickup.
1140    o pkg/seaice:
1141      - bug fix in growth.F: QNET for no shortwave case
1142      - added HeffFile for specifying initial sea-ice thickness
1143      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1144    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1145      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1146    o pkg/seaice:
1147      - adjoint-friendly modifications
1148      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1149    
1150    checkpoint48e_post
1151    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1152    o dynamics: change definition of computational domain & adapt mom_fluxform
1153      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1154    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1155        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1156        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1157        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1158        inverted_barometer solid-body.cs-32x32x1
1159      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1160    
1161    checkpoint48d_post
1162    o in preparation for r*:
1163     a) use pre-computed gradient of hydrostatic potential:
1164        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1165     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1166        => affects results of glob_oce_pressure (different truncation error)  
1167      update output.txt of ideal_2D_oce & global_ocean_pressure
1168    
1169    checkpoint48d_pre
1170    o in preparation for r*:
1171      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1172      pass the 2 comp. of the grad. as arguments to momentum S/R.
1173      but for the moment, only used if it does not change the results.
1174    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1175    
1176    checkpoint48c_post
1177    Modifications in treatment of initial flux forcing controls
1178    to avoid extra storing of flux fields.
1179    
1180    checkpoint48c_pre
1181    o Added tidal_basin_2d experiment (currently 1D!)
1182    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1183    
1184    checkpoint48b_post
1185    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1186     (modification to pressure gradient not yet implemented)
1187    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1188      (for U & V) that are used for vertical advection of momentum.
1189    
1190    checkpoint48a_post
1191    o In preparation for r*, use temp. array to compute vertical transport
1192       in flux-form momentum pkg. => change results of few test-exp.
1193      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1194                        lab_sea, natl_box & plume_on_slope
1195    
1196    checkpoint48
1197    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1198    
1199  checkpoint47j_post  checkpoint47j_post
1200  o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.  o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1201  o moved adexch from forward_step to addummy_in_stepping  o moved adexch from forward_step to addummy_in_stepping

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