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revision 1.100 by adcroft, Thu Nov 7 21:51:11 2002 UTC revision 1.378 by jmc, Tue Nov 2 01:20:04 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 allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
7      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
8    
9    checkpoint55i_post
10    o change arrays for total vertical diffusivity (2.D if explicit,
11      3.D if implicit) ; each ptracer uses its own background value.
12    o added mnc/NetCDF output capability to ocn_compon_interf
13      - added bits to verification/cpl_aim+ocn so that it can run on
14        ITRDA and other clusters without the mpirun "-wd" option
15    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
16      configuration
17    o give MNC the ability to create additional files rather than
18      exceeding a specified file size limit "MNC_MAX_FILESIZE"
19      - the default is just less than 2GB which is a practical limit
20        on many systems
21    o Compute the non-local term using either KPP vertical diffusivity (=default)
22       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
23    
24    checkpoint55h_post
25    o add verification test "vermix"
26    o remove all the *_ioinc flags and replace with the single global
27      outputTypesInclusive flag
28    o allow to set a vertical profile of vertical diffusivity for T & S
29    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
30    o useMNC moved from data.mnc to data.pkg
31    
32    checkpoint55g_post
33    o Renaming carbon AD experiments to comply with testreport conventions
34    o Updating adjoint of Held-Suarez hs94.1x64x5
35    o Fixing directives for non-ECCO forward_step, after ECCO directives
36      have been fixed to avoid recomp. of do_oceanic_phys
37      Works well for global_ocean.90x40x15,
38      but recomp. issue remains for carbon
39    o Updating adjoint output for natl_box_adjoint after
40      pkg/ecco has been modified (see taga c55d_post)
41    
42    checkpoint55f_post
43    o rename to timeave_init_fixed
44    
45    checkpoint55e_post
46    o some delicate re-shuffle of store directives to avoid one
47      extra call of do_oceanic_physics
48      affects ecco_the_main_loop.F, do_oceanic_physics.F
49      checkpoint_lev1_directives.h
50    o NB: this may break global_ocean adjoint temporarily,
51      but it is clear how to fix it. Will do later, need this now.
52    
53    checkpoint55d_post
54    o ECCO specific cost function terms (up-to-date with 1x1 runs)
55    o ecco_cost_weights is modified to 1x1 runs
56    o modifs to allow observations to be read in as
57      single file or yearly files
58    o enable to read exf forcing fields as either
59      single file or yearly files (flag useExfYearlyFields)
60    checkpoint55d_pre
61    
62    o switch between 2-level and 3-level checkpointing
63    o add ability of MNC to write local and "partial" (eg. 2D slices where
64      the full 3D field is never actually stored) arrays to NetCDF files
65      with the correct (that is, the complete multi-dimensional) set of
66      array indicies
67      - used in mom_vecinv() to write the diagFreq output
68      - tested (demonstrated) in verification/aim.5l_cs
69    o further mnc-ification
70      - add verification/lab_sea to the list with mnc setups
71      - fix undefined mnc v-names in cd_code
72      - add kpp to mnc output (both snapshot and timeave)
73    o non-hydrostatic code
74      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
75        in calc_gw.F
76      - defaults to viscAh
77      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
78        friction or Leith) in non-hydrostatic mode, as long as there is
79        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
80    o pkg/cost
81      extend simple cost functions to treat time mean quantities
82      (T,U,V) via cost_accumulate_state from cost_tile
83    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
84        be 2 times larger than the minimum size the advection scheme requires.
85        now get a perfect conservation of salt in advect_cs test-exp (updated)
86    o GGL90 (Gaspar's TKE mixed layer)
87      - add horizontal diffusion of TKE, requires exchanges in
88        do_fields_blocking_exchanges, horizontal diffusivity is zero by
89        default. In OPA there is no horizontal diffusion of TKE but the
90        mixing coefficients are computed from a horizontal average of TKE of
91        6 points or so. I think that diffusion has a little more physical
92        justification.
93      - clean up ggl90_calc in the hope of reducing memory usage (this hope
94        was in vain)
95      - mask tke-variable in ggl90_init
96    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
97    o fix biharmonic diffusion on CS-grid.
98    o more obcs stuff
99      - added obcs_external_fields_load as an alternative to the EXF-pkg option
100        for reading boundary values. This routine is called from
101        obcs_prescribe_read
102      - updated obcs_check
103      - changed sponge layer relaxation parameter units for days to seconds
104      - turned off sponge layer by default
105      - changed argument list of OBCS_CALC to myTime+deltaTclock
106      - fixed about 35 bugs in obcs_external_fields_load
107    
108    checkpoint55c_post
109    o obcs stuff
110      - new runtime flags useOBCSprescribe, useOBCSbalance
111      - re-arranged obcs_calc
112      - moved exf_getobcs to obcs_prescibe_read
113        obcs_prescibe_read is called after ORLANSKI stuff
114        and independent of it (executable can contain all).
115      - updated obcs_check
116      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
117        These may be necessary only if tangential velocities are
118        prescribed at OB, not sure, needs testing.
119    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
120      which simplifies the calls and passes the ifc check-bounds test
121    
122    checkpoint55b_post
123    o add a 2D scalar, Z location, exchange_2 routine.
124    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
125      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
126      affects advect_cs results (for the wrong reason): update output.txt
127    o use a more standard discretization for biharmonic viscosity ;
128     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
129      affects results of dome set-up: update output.txt
130    o fix gad_advection.F (CubedSphere part), back to version 1.23
131    o fix bug in mom_vi_del2uv.F (CubedSphere part).
132    
133    checkpoint55a_post
134    o merged code to
135      * prescribe/read time-dependent open boundaries
136        (works in conjunction with exf, cal)
137      * sponge layer code for open boundaries
138      * each boundary N/S/E/W now has its own CPP option
139        (healthy for the adjoint)
140    
141    checkpoint55
142    o up-to-date adjoint of previous breaks
143      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
144      - global_ocean_ebm: adjoint still needs fix (TLM ok)
145      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
146      - carbon: * remove tr1-related adjoint verification
147                * add ptracer as control variable
148    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
149      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
150    
151    checkpoint54f_post
152    o in verification/carbin/ remove experiment related to
153      ALLOW_PASSIVE_TRACER (array tr1 etc)
154      code_ad/ input_ad/ results_ad
155    
156    o add two new packages
157      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
158        + subject to optimization (memory)
159      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
160        + subject to reordering (many GOTOs in the original code)
161        + so far opps is called for every (i,j) point, and then operates in
162          the vertical; one may want to reorder the scheme in order operate in
163          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
164          fields)
165    o overhaul of IO so that we now have flags for MDSIO and/or MNC
166      - all verification tests compile and run with linux_ia32_g77
167      - defaults are compatible with current input files--nothing
168        should change if you were not previously using MNC
169      - MNC output has been added in numerous places (eg. timeave)
170        but there are still a few writes not yet do-able with MNC
171        (this is in progress)
172      - flags now allow for either/or/both use of MDSIO and MNC and
173        documentation will soon follow
174      - numerous small formatting cleanups for ProTeX
175    o add version info (via BUILD_INFO.h) to MNC and stdout
176    
177    checkpoint54e_post
178    o add two new packages
179      - pp81 (Packanowski and Philander, 1981), Richardson number and
180        stratification dependent mixing
181      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
182      - these scheme operate in a similar manner as KPP (without ghat, of
183        course), however there is only one diffusivity that is used for both
184        temperature and salinity (and passive tracers)ç
185    o add offline package
186    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
187      provided by Stephanie Dutkiewicz
188    o genmake2: add ability to search for C compilers and cleanup test output
189      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
190    
191    checkpoint54d_post
192    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
193    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
194      leading to additional shift by 5 days each year of integration
195       (i.e. leading to considerable offset over the years)
196    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
197    o start with no AB and no initial filtering (staggerTimeStep):
198      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
199    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
200      (external loading & cpl import/export stay in forward_step.F)
201    o update coupling interface to work with new staggerTimeStep
202    o change MDSIO ptracers_pickup.
203    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
204    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
205    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
206    
207    checkpoint54c_post
208    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
209      this affects (truncation error) output.txt of test-exp:
210       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
211    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
212    o change Qnet to always be the net heat flux, (+upward).
213      affects (truncation error) output of natl_box exp.: updated
214    o define the max number of passive tracers in PTRACERS_SIZE.h
215    o start to test mnc routinely in exp0
216    o add sea-ice loading (sIceLoad) as a new forcing field.
217    
218    checkpoint54b_post
219    o add testreport "-j JOBS" option for parallel builds (tested and pretty
220       impressive on Altix and Opteron systems)
221    o diagnostics can now write NetCDF files through the mnc package
222    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
223    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
224    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
225      affects (truncation error) output of lab_sea & natl_box exp.: updated
226    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
227    
228    checkpoint54a_post
229    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
230    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
231    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
232    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
233      + internal_wave (shift in writing cg2d_ini_res)
234    checkpoint54a_pre
235    
236    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
237      - modified verification/lab_sea and natl_box_adjoint accordingly
238    
239    checkpoint54
240    checkpoint53g_post
241    o prepare splitting of thermodynamics: store convect.counter in common block
242    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
243      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
244    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
245    o new parameter "nShapS": allow to treat differently S from T (nShapT)
246    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
247    o restore adjointability
248    
249    checkpoint53f_post
250    o modifications that affect AIM experiment results (update output.txt):
251      - no advection of S at top interface Nr (pkg/generic_advdiff)
252      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
253    o AIM pkg:
254      - include stability function into surf.Flux derivative relative to Tsurf
255      - calculate clear-sky radiation & surface temp. change (for diagnostics)
256    
257    checkpoint53e_post
258    o merged cylindrical coord configuration
259    o added rotating_tank experiment
260    checkpoint53e_pre
261    
262    checkpoint53d_post
263    o faulks upgraded: re-generate output.txt that have changed:
264       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
265    o Added Bryan and Lewis, 1979, vertical diffusivity profile
266    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
267    o added Sadourny discretization of Coriolis
268      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
269      - re-enabled use of omega3 (useAbsVorticity)
270    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
271      vector-invariant equations
272      - note: does *NOT* yet use same variable visc. for no-slip BC's.
273    o recoded the lateral boundary conditions for non-hydrostatic w, this time
274      hopefully without new bugs
275      - still to do: biharmonic friction for non-hydrostatic w
276    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
277    o regenerated output for global_ocean_ebm (using -ieee)
278    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
279      of mom_common/
280      - simple re-arrangement of instructions within computing loop
281    checkpoint53d_pre
282    
283    checkpoint53c_post
284    o new version of coupler for AIM+thSIce and Ocean models
285     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
286     - land: change Evaporation of snow
287     - aim with thSIce: fix bug in snow-precip.
288    o changes to calc_gw.F
289     - bug fix for w^2 term near the bottom boundary
290     - (hopefully) improve the lateral slip boundary condtions for use with
291        partial/looped cells
292      - because the bug fix changes two verification experiments anyway (exp5
293        and plume on slope), change the lateral boundary condition from half slip
294        to the value of no_slip_sides
295    o ebm package wasnt quite up to the parallel task. Fixed that.
296    o Adjoint of EBM package + verification
297      * TLM OK
298      * ADM not sufficient accuracy yet (needs further testing)
299    
300    checkpoint53b_post
301    o Commiting new energy balance model to repository
302      * package is pkg/ebm
303      * verif. is verification/global_ocean_ebm
304      * references are in ebm_driver.F
305    C      * X. Wang, P. Stone and J. Marotzke, 1999:
306    C        Global thermohaline circulation. Part I:
307    C        Sensitivity to atmospheric moisture transport.
308    C        J. Climate 12(1), 71-82
309    C      * X. Wang, P. Stone and J. Marotzke, 1999:
310    C        Global thermohaline circulation. Part II:
311    C        Sensitivity with interactive transport.
312    C        J. Climate 12(1), 83-91
313    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
314    C        Destabilization of the thermohaline circulation
315    C        by atmospheric eddy transports.
316    C        J. Climate 7(12), 1870-1882
317    o Will need long integration testing.
318    checkpoint53b_pre
319    
320    o created pkg/mom_common in preparation for variable viscosity code
321    o renamed and split ini_mnc_io
322    o pkg/land: only liquid water can diffuse or run-off
323    o AIM using land: soil wetness availability account for snow
324    o added printMapIncludesZeros to EEPARMS namelist
325    
326    checkpoint53a_post
327    o restore TAMC compatiility for exf_constants.h
328      (no usage of _d in .h)
329    o Additional storing in KPP in an attempt to fix
330      TAMC problem with adjoint of KPP code.
331      (no success...)
332      Identical code works fine with TAF.
333    o Fixed verification/natl_box_adjoint experiments.
334      Initial conditions for Experiments 4 and 5 are now
335      set to "SEAICE_initialHEFF=0", which is more reasonable,
336      and hence gives results closer to that of Experiment 2.
337      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
338    
339    checkpoint53
340    o stable checkpoint with up to date adjoint
341      TLM tests only run for 1st grdchk at the moment. Its unclear if
342      this is a code problem or a problem with resetting code for g_
343      variables that is being autogenerated wrong.
344      Otherwise:
345       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
346       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
347         are both still in chaos following their security messes.
348    
349    checkpoint52n_post
350    o various build (mostly genmake2) changes including:
351      - ability to build/run more easily within Cygwin and MacOS X
352      - more complicated Makefiles with a stronger dependence on Gnu Make
353    o pkg/seaice modifications
354      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
355        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
356        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
357      - changed proxy for geostrophic velocity and updated
358        verification/lab_sea/results/* accordingly
359      - removed ADI dynamic solver from pkg/seaice
360      - replaced all occurrences of 1/CSTICE or 1/CSUICE
361        they caused a segmentation fault under certain circumstances
362      - removed unused field WATR
363    o bug fix in exf-package:
364      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
365         now reflect that.
366    o small fixes in the cal-package:
367      - set reference date to first of January for the 'model'-calendar
368      - failing of cal_CheckDate in cal_FullDate now actually results in a
369        warning
370    o small modifications in exf-package to increase flexibility:
371      - change climtempfreeze from a constant to a runtime parameter that
372        is specified in data.exf_clim (default = -1.9)
373      - introduce runtime parameter windstressmax (default = 2.0) that is
374        specified in data.exf
375    o fix in pkg/thsice:
376      - update Evap (Tsf changes) to be consistent with Latent heat flux
377      - maintain snow precipitation unchanged (even if Tsf >=0).
378     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
379    
380    checkpoint52m_post
381    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
382      this does not change any of the results, because myIter=0 in swfrac always
383      lead to jwtype=2 (the default anyway), but the call makes little sense
384      as a default
385    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
386    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
387      atmospheric model (AIM) to use it ; add a "slab ocean" component.
388    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
389    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
390    o extending useSingleCpuIO option to work with new exch2 I/O format
391      - old-style, missing-tile I/O is still accessible by defining CPP
392        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
393    o monitor package can write to NetCDF files and/or STDOUT
394    o fix re-definition bug in MNC_GRID_INIT_ALL()
395    o doc/api_reference added
396      - a framework for building an API Reference Manual using all
397        the "protex" comments embedded in the code
398      - see pkg/generic_advdiff, pkg/mnc for examples
399    o MNC:
400      - make myThid the last argument for all subroutines
401      - new default for the grid files: NO halos
402      - add useMNC and other run-time flags
403      - separate per-file-group handling of the unlimited dimension
404      - early initialization of MNC w/ flags read at the eeboot stage
405        and lookup tables set in initialize_fixed
406      - write all MNC output to a freshly-created directory
407    o thermodynamics sea-ice (thsice) is now tested with testreport.
408    o test exp. advect_cs: use the standard cs32 grid ; update output.
409    o Added functionality to grdchk:
410      pick global i,j,k position (or nearest wet) where to perform check.
411    
412    checkpoint52l_post
413    o new land formulation:
414      a) use ground enthalpy as prognostic variable to ensure exact
415         energy conservation.
416      b) account for water temperature and for latent heat of freezing
417         in all processes (rain, run-off, ground storage)
418      c) compute surface and ground temperature implicitly.
419    o aim_v23 modification for new land model:
420      a) Treat separately land / ocean / sea-ice surface fluxes
421         to allow implicit computation of land & sea-ice surface temp.
422      b) add snow precipitation.
423    checkpoint52l_pre
424    
425    o fix problem (when 1 tile is empty) in min/max monitor.
426    o fix bug in timeAve (u,vZetatave in common block)
427    o no restoring terms under ice for pkg/seaice
428    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
429    o bug fix for pkg/seaice pickups
430    o change MNC call locations and add coordinate attributes
431    o mask vorticity at the corner ; affects global_ocean.cs output
432    o fix ini_curvilinear_grid ; test CS experiments with mpi
433    o aim.5l_cs: modify sea-ice fraction input file ; update output
434    o exf: Adding simple range check routine for exf fields after read
435    
436    checkpoint52k_post
437    o removed top-level directory "diags"
438      - we migrated these functions to pkg/timeave a long time ago
439    o fixed bug introduced in pkg/monitor
440    o accuracy ctrlprec = 32 insuffient for gradient checks using
441      averaged fields (I/O via cost_averages)
442      -> use ctrl.h in active_file*.F to control I/O precision.
443    o paramter list of CALL ADTHE_MAIN_LOOP
444    o added initial do_the_model_io to ecco
445    o set all ...Freq to zero after cost_final
446      taveFreq, dumpFreq, pChkptFreq
447    o MAIN and ECCO differentiability restored
448    
449    checkpoint52j_post
450    o fix nchklev in tamc.h for global_ocean...
451    o Bringing flow and store directives up-to-date
452    o Really weird thing!
453      call do_the_model_io from the_main_loop with parameters
454      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
455      TAF places a faulty re-call of initialise_varia
456      after cost_final call which should not be there!
457    checkpoint52j_pre
458    
459    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
460      error messages
461    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
462    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
463      debug output
464    o modfied mdsio_writefield.F to handle non-global files under exch2
465    o update AIM Cubed-Sphere exp (aim.5l_cs):
466      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
467    o update AIM Equatorial Channel exp:
468      use standard aim_v23 pkg and change the SST fields to be more realistic.
469    o globalFile now works with exch2
470    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
471      mon_vort3.F to make exch2 friendly with >1 tile per cube face
472    o limit timeave output for hi-res integrations
473    
474    checkpoint52i_post
475    o removed CPP_EEOPTIONS.h from verification/*/code
476    o updated the tiling for global_ocean_pressure
477    checkpoint52i_pre
478    
479    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
480      the old pkg/aim).
481    
482    checkpoint52h_pre
483    o shortened offending lines in exch2_send_rx?.template
484    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
485    o genmake2: add build & execute test for NetCDF code
486    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
487      old grid files, moved CPP_EEMACROS.h to pkg/exch2
488    o added useSingleCPUIO flag to monitor.F and mon_out.F
489    o added temporary hack for sea-ice dynamics on the cube:
490      metric terms are ignored and it is assumed that
491      there is no sea-ice on cube faces 1, 2, 4, and 5.
492    
493    checkpoint52f_post
494    o added exch2 cube routines to pkg/exch2
495    o modified hs94.cs-32x32x5 to use it
496    o added new grid files to hs94.cs-32x32x5
497    checkpoint52f_pre
498    
499    checkpoint52e_post
500    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
501      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
502    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
503      to work with implicit vertical advection and AB ;
504    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
505    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
506     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
507    checkpoint52e_pre
508    
509    o fix bug in impldiff when Nr=1 or Nr=2.
510    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
511    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
512    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
513      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
514    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
515    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
516    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
517    
518    checkpoint52d_post
519    o re-tiled many expts to allow comparison in multi-processor mode
520      - updated output accordingly
521      - changed hs94.128x64x5 to use intial T from file rather than use the
522        random number generator
523    o add infrastructure in model routines for fizhi and gridalt packages
524    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
525    o changes to permit hi-res, cubed-sphere, configuration
526      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
527      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
528      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
529        of surface winds for the cube
530      (A verification experiment, based on global_ocean.cs32x15, but with
531       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
532       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
533       complete with example surface forcing files and matlab scripts to look
534       at the output and compare it with that of global_ocean.cs32x15.)
535    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
536       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
537       to conform to the common rule.
538    o check-in the first version of the coupler + interfaces for multi-components
539       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
540       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
541       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
542       - ocean and atmos. share the same horizontal grid (no interpolation).
543       - exchanges between component and coupler is done in forward_step
544    o new verification experiment, cpl_aim+ocn:
545       coupled ocean - AIM atmosphere on cs32 grid.
546    
547    checkpoint52d_pre
548    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
549    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
550    
551    checkpoint52c_post
552    o Fixing OPTIONS files for use of exf:
553      - ALLOW_ECCO not needed
554      - ECCO_CPPOPTIONS.h should not be included from
555        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
556        as has been the case in the past
557      - All cal/exf related options are currently set in
558        single header file. Should remain so until we
559        agree on a consistent new policy.
560    o Removed all CPP options for cal package.
561      cal has no more CPP options.
562    o modified STOREs in GAD_ADVECTION
563    o corrected key comp. for passkey
564    
565    checkpoint52b_post
566    o new version: "thsice" of thermodynamic sea-ice pkg:
567     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
568     - modify fluxes but do not change theta directly;
569     - light cleaning of bulk_force pkg (still needed with thsice).
570     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
571       + output_thsice.txt to test thsice & bulk_force pkgs.
572    o put back grid & coriolis monitor output.
573    checkpoint52b_pre
574    
575    o call "do_the_model_io" at the beginning (=> dump initial state)
576    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
577    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
578      (need info on NUMBER_OF_PTRACERS)
579    o missing PTRACERS headers in some routines
580    o default tamc.h in pkg/autodiff supposed to crash
581      to ensure proper customization
582    
583    checkpoint52a_post
584    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
585      - moved surfaceTendencyTice from pkg/seaice to main code
586      - subroutine FREEZE_SURFACE now limits only surface temperature
587        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
588        => new output.txt for global_ocean.cs32x15 & global_with_exf
589      - keep the old version of FREEZE for backward compatibility;
590        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
591      - corresponding modifs for TAF directives
592    o added surface flux output variables to TIMEAVE_STATVARS
593    o time-averaged output for pkg/ptracers
594    o fix problem with ECCO-related divided adjoint
595      snapshot file was missing some ad-variables,
596      but no warning issued by TAF
597    
598    checkpoint52a_pre
599    o some bug fixes for #undef REAL4_IS_SLOW
600    
601    checkpoint52 = ecco_c52_e35
602    o after testing adjoints of checkpoint51u_post
603    
604    checkpoint51u_post
605    o this is the post-merge tag of the ecco-branch
606      (needs another clean checkout and re-testing)
607    o various natl_box_adjoint configs and results
608      but no input fields
609    o obcs adjoint not yet merged!
610    o adding ECCO global 1x1 and 2x2 degree configs
611    o updated/extended some store directives for seaice
612    o pkg/ecco now containes ecco-specific part of cost function
613    o top level routines the_main_loop, forward_step
614      supersede those in model/src/
615      previous input data.cost now in data.ecco
616      (new namelist ecco_cost_nml)
617    o in ctrl/ cleaned some cross-dependencies and updated CPP options
618    
619    checkpoint51t_post
620    o this is the pre-merge tag of the ecco-branch
621    
622    checkpoint51s_post
623    o cleanup: removed various obsolete #define-s
624    o pkg/grdchk
625      - renamed 'ph-grd 3' to 'grad-res'
626      - merged from ecco-branch
627        (remaining bug fixes for obcs gradient checks)
628      - additional high-precision output for testreport
629        (grep for 'precision_grdchk_result')
630    
631    checkpoint51r_post
632    o cleaned up or removed CPP_OPTIONS.h files
633    o updated results for some of the tests to reflect the new
634      optfiles (-ieee: -O0 instead of -O3)
635    
636    checkpoint51q_post
637    o cd_code:
638      - moved cd_scheme.F -> cd_code_scheme.F
639      - separate read_checkpoint from cd_code_ini_vars.F
640      - separated cd_code part from write_checkpoint
641      - updated AD_SOURCE, generated .flow
642      - added CD_CODE_VARS.h to the_main_loop
643      - Moving cd_code specific store dir.s to pkg/cd_code
644    o ctrl package totally restructured
645      - pack/unpack now optional and decoupled from
646        xx_/adxx_ I/O
647      - ctrl_pack/unpack cleaned
648        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
649      - confined inclusion of AD_CONFIG.h to where necessary.
650    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
651    
652    checkpoint51p_post
653    o create initial cd_code package
654      - WARNING: the initialization of fields within packages
655        is broken because INI_FIELDS (where READ_CHECKPOINT is
656        called) is called *before* PACKAGES_INIT_VARIABLES.
657        This seems to be backwards since
658        1) its important to initially zero the entire field including
659           the "halo" region
660        2) zeroing needs to be done *before* reading pickup info
661           and the pickup call might or might not happen in any
662           particular run
663      - this needs an overhaul for R2
664    o cleanup verification/*/code/GMREDI_OPTIONS.h
665    o cleanup testreport
666    
667    checkpoint51o_post
668    o bringing AD-related verif's up to date with genmake2
669      - carbon/
670      - global_ocean.90x40x15/
671      - hs.94.1x64x5/
672      - (front_relax/ )
673    o (more) consistent directory structure for AD-related verif.'s
674    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
675    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
676    o bug fix in find_alpha.F for MDJWF:
677      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
678        change rho -> rho-rhoConst
679      - replace call find_rho to find_rhonum
680    o initialisation of rFlx extended to full array (required by TAF)
681      and shifted to thermodynamics
682    o removed PTRACERS.h in ptracers routine
683    o added surfacetendencyPtr to S/R parameter list pracers_forcing
684    o Correcting initialisations for fVerU, fVerV.
685    o helping TAF to recognize dependency on kUp for
686      fVerU, fVerV
687    o Replacing delZ by delR in pkg/ctrl/
688    checkpoint51o_pre
689    
690    o undid all of cp51 pending some cleanups and discussion
691    o added the [#include "AD_CONFIG.h"] statement to all files that need
692       it for adjoint/tl #defines
693     o re-worked the build logic in genmake2 to support AD_CONFIG.h
694     o removed tools/genmake since it no longer works
695    
696    checkpoint51n_post
697    o modifications to make FREEZE flux visible to pkg/kpp
698      - moved surfaceTendencyTice from pkg/seaice to main code
699      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
700      - subroutine FREEZE now limits only surface temperature
701        (this means new output.txt for global_ocean.90x40x15,
702         global_ocean.cs32x15, and global_with_exf)
703    o added surface flux output variables to TIMEAVE_STATVARS
704    
705    checkpoint51n_pre
706    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
707    o added [#include "AD_CONFIG.h"] to all files that use the following
708      defines:
709      - ALLOW_ADJOINT_RUN
710      - ALLOW_TANGENTLINEAR_RUN
711      - ALLOW_ECCO_OPTIMIZATION
712    
713    checkpoint51m_post
714    o incorporating changes to get TAMC/TAF working in genmake2
715      - added new TAMC/TAF targets to the Makefile
716      - various cleanups related to package handling
717      - these changes should have no impact on the forward model
718    
719    checkpoint51l_post
720    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
721     - faster algorithm for cal_addtime.F
722     - higher precision arithmetic, where needed
723     - pkg/exf *startdate variables changed from calendar date to
724       model integration time
725    
726    checkpoint51l_pre
727    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
728    o enable to apply restoring on S & T only in a latitude band.
729    o update output (external_forcing_surf modif. change truncation errors)
730       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
731    
732    checkpoint51k_post
733    o change default to: useNHMTerms=.FALSE.
734     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
735       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
736     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
737        exp1, ideal_2D_oce
738     - change data file of oceanic exp (leave the results unchanged for now)
739       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
740    o set gravitySign automatically according to the vertical coordinate used
741      (and change sign: back to "logical" value: +1 when R increases downward)
742    o added an include barrier to the default CPP_OPTIONS.h and
743      removed the #include "PACKAGES_CONFIG.h" from it
744    o fix a bug in mom_fluxform (from chk51j_post)
745    
746    checkpoint51j_post
747    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
748    o adjusted some flow directives (dynamics, thermodynamics)
749    o added cubed-sphere case to test cost function
750    o heckpoint_lev?_directives.h now include
751      pkg-specific directives, whenever those are enabled.
752    o Moving pkg-specific flow directives to corresponding pkg
753      Moving pkg-specific differentiation list to corresponding pkg
754      Moving pkg-specific checkpoint-lev storing to corresponding pkg
755      ---> conventions are
756           - pkg_ad.flow
757           - pkg_ad_diff.list
758           - pkg_ad_check_lev?_dir.h
759    
760    checkpoint51i_post
761    o merge of the branch-genmake2
762      - knowingly breaks the older genmake
763      - automatic generation of all ALLOW_${PKG_NAME} defines
764      - new testreport supersedes older testscript
765    o large number of package inclusion and header cleanups
766    checkpoint51i_pre
767    
768    o new output for adjoin of global ocean vector invariant
769    o fix for checkpoint of thermodynamic seaice and bulk_force
770    o Steph gchem various cleanups
771    
772    checkpoint 51h_pre
773    o fixed some single quotes
774    o modify gchem pkg to be more versatile
775    o modifications to clean up dic pkg
776    o add pkg/cfc
777    
778    checkpoint51g_post
779    o provide links for ARPACK and ADM*TLM
780    o start removing verification/vero/
781    o update AD-related stuff
782      (in particular some IF-statements in model/src/ routines)
783    o adding to verification/global_ocean.90x40x15/ adjoint of
784      vector invariant setup
785    
786    checkpoint51f_post
787    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
788    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
789      of tracer Green's fucntions for ocean inversion project.
790    
791    checkpoint51f_pre
792    o Added on-the-fly spatial interpolation capability
793        "USE_EXF_INTERPOLATION" to pkg/exf.
794      - This is a temporary Cartesian-grid hack until
795        the super-duper ESMF coupler becomes available.
796      - See verification/global_with_exf/README for usage example.
797      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
798        flags and modified pkg/seaice accordingly.
799    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
800        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
801        non-local transport term.
802    
803    checkpoint51e_post
804    o pkg/mom_vecinv:
805      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
806      - add time-ave diagnostic of vorticity advection.
807    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
808    o atmospheric geopotential: - include water vapor effect;
809                                - use p^kappa in p* scaling.
810    o land pkg: read initial state from files.
811    o AIM : add stratospheric drag in the upper level
812    
813    checkpoint51d_post
814    o change function ILNBLNK (=> last non-blank char.) to return zero
815      (instead of the string length) when the string. char is empty
816    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
817    o modif's to restore TAMC compatibility
818      - avoid "_d" constructs in PARAMETER declarations
819      - avoid interrupting lines by comment lines
820    o Use cluster local disks for purely local I/O
821      vs. globally visible disks needed for ctrl stuff
822      (merged from ecco-branch)
823      - new active_file_loc... and mdsio_..._loc routines
824      - affected packages: autodiff, ctrl, grdchk, mdsio
825    
826    checkpoint51c_post
827    o introducing integer flag debugLevel
828      - debLevZero: suppress all output
829      - debLevA: standard
830      - debLevB: equivalent to current debugMode=.TRUE.
831    o introducing pathname variable mdsioLocalDir for mdsio
832      that can be specified at runtime
833      (relevant for cluster I/O to local disk)
834    `
835    >>>checkpoint51b_post
836    adjoint of ptracers
837    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
838    o extended state in checkpoint_lev?, etc.
839    o alternative ctrl/cost with tr1 or ptracer
840    o new comlev1_bibj_ptracers
841    o new ptracers.flow
842    o made ptracers_forcing same as external_forcing_s
843    o added verification for adjoint with ptracers
844      - adm. grdchk fail so far
845      - tlm. grdchk OK
846      - checked tapelev/comlev recomputations: OK
847    <<<checkpoint51b_pre
848    
849    checkpoint51a_post
850    o added code for biogeochemistry package
851      - new pkgs: dic, gchem
852      - new subroutine in ptracers
853    o modify code for biogeo packages
854      - in model/src and pkg/ptracers
855    
856    checkpoint51
857    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
858      - autodiff, ctrl, exf, grdchk, seaice
859      kept separate packages
860      - cost, ecco, obcs
861    o updating verification/internal_wave, verification/lab_sea
862      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
863    
864    checkpoint50i_post
865    o Preparing next differentiable checkpoint and sync
866      of MAIN vs. ecco-branch
867      - 1st step: this one is differentiable
868      - 2nd step: next(! not this) checkpoint will have updated packages
869                  from ecco-branch)
870    
871    checkpoint50h_post
872    o new package "land": provide surface BC for AIM.
873    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
874    o AIM: use true log-P extrapolation for near surface temp (= as in
875        F.Molteni paper) ; update aim.5l_cs output.
876    o New variable in PARM03 for more flexible pickups
877    o somewhat cleaned package initialisation sequence for
878      ctrl/ cost/ ecco/ in packages_... routines
879    
880    checkpoint50g_post
881    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
882      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
883      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
884        made the default because of faster convergence than ADI
885    
886    checkpoint50f_post
887    o exf totally restructured
888      - replaced all exf_set_ routines by one generic exf_set_gen.F
889        and made sure it's still differentiable
890      - split exf_getffields.F into new exf_bulkformulae.F
891      - exf_inscal_/exf_outscal_ suffixes consistent with field names
892      - updated adjoint/makefile and relevant verif. accordingly
893    
894    checkpoint50f_pre
895     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
896          + change Evap over land. (update aim.5l_cs output)
897     o added missing .cvsignores and made uniform across expts
898     o changed configuration of tidal_basin_2d expt
899     o added pkg/debug functions for tracing code in fatal crashes
900     o tidied pkg/monitor to use MONITOR_OPTIONS.h
901     o new fn in pkg/monitor to stop model if solution grows too big
902     o removed lots of single quotes from comments
903    
904    checkpoint50e_post
905    o make KPP work with PTRACERS
906     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
907       nearly a copy of kpp_transport_s
908     - there is no analogue to SurfaceTendencyS, so I have to use
909       gPtr(of the surface layer) instead
910    o add a new platform SunFire+mpi (SunFire 15000) to genmake
911    checkpoint50e_pre
912    
913    checkpoint50d_post
914    o change kpp output from multiple-record state files to single-record state
915      files analogous to write_state.F
916    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
917      analogous to the cg2d-related output.
918    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
919      so that writing to internal file fn (with length 512) fails.
920    checkpoint50d_pre
921    
922    checkpoint50c_post
923    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
924    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
925    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
926    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
927    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
928    
929    checkpoint50c_pre
930    Merging from release1_p13:
931    o bug fix for pkg/seaice dynamic solver
932    o Added SEAICE_initialHEFF to pkg/seaice
933    
934    checkpoint50b_post
935    o store u*,v* in gU,V instead of in guNm1,gvNm1
936    o in order to put the momForcing out of the Adams-Bashforth:
937      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
938      to timestep.F
939    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
940    o re-generate output for highly sensitive test-exp:
941       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
942    
943    checkpoint50b_pre
944    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
945    o corrected CPP option mismatch in exf_Bulk... functions for case
946      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
947    
948    checkpoint50a_post
949    o Bug fix for merging between c50 and KPP.
950      ikey was passed from thermodynamics to kpp_calc via
951      common block rather than being recomputed in kpp_calc,
952      in contradiction with new key itdkey.
953      New key ikppkey created, and tamc.h headers updated.
954    
955    checkpoint50
956    - 2nd step of merge with ecco-branch:
957      merge changes in ecco-branch back into main trunk
958    - bug fix in find_alpha
959    - more storing in gmredi_calc_tensor.F, kpp_routines.F
960    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
961    - merged some sliced AD support routines
962    
963    checkpoint49
964    merged from ecco-branch:
965    o exf:
966      - Enable initialisation of forcing fields to constant
967        (runtime) values.
968      - in exf_getffields.F
969        Reduce i-/j-loop to interior domain, discarding overlaps.
970        That also fixes wrong TAF-key computations for key_1, key_2
971        with bulf formulae.
972      - exf_init.F modify #ifdef for exf_init_evap
973      - exf_getffieldrec.F, ctrl_getrec.F
974        The following INT-usages are not safe:
975          fldsecs  = int(fldsecs/fldperiod)*fldperiod
976          fldcount = int(fldsecs/fldperiod) + 1
977        and were modified.
978    o autodiff: checkpoint_lev...
979      - updated storing for bulk formulae (some arrays were missing)
980      - added state for seaice package
981      - synchronized with main branch
982    o DIVA:
983      Modif.s in
984      - the_main_loop.F
985      - the_model_main.F
986      and added cost_final_restore.F cost_final_store.F
987      o With these changes, it is possible to fully separate
988        the first forward run to compute the cost function (mdthe_main_loop)
989        and adjoint runs over individual DIVA intervals (adthe_main_loop)
990        into separate model executions.
991        This enables better tuning of DIVA to given queue sizes.
992      o Loss of cost function value in consecutive DIVA runs is
993        fixed by storing to 'costfinal' file.
994      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
995        beginning/end of adjoint integration is accounted for.
996      The current changes apply to TAF-1.4.26.
997      TAF has one remaining bug, requiring one manual change
998      (see MITgcm manual).
999    o cal: synchronized between MAIN and ecco-branch
1000    
1001    checkpoint48i_post
1002    o Changes to restore differentiability of code w.r.t. previous tag
1003      (mostly adding new routines to make list and replacing
1004      pressure by totPhiHyd).
1005    o Updated and merged grdchk package
1006      - has both ADM and TLM checks
1007      - works for single- and multi-proc.
1008      - output cleaned
1009      - worked successfully for parallel DIVA
1010    o genmake:
1011      - Adding -platform=SP4
1012      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1013    o Modif. for DIVA:
1014      ctrl_unpack should not be called in intermediate DIVA interval.
1015      (similar thing would apply for active files such as
1016      tbar, sbar, psbar, which should not be reinitialised;
1017      only relevant for ecco-branch)
1018    
1019    checkpoint48h_post
1020    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1021    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1022    o Added SEAICE_initialHEFF to pkg/seaice
1023    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1024    
1025    checkpoint48g_post
1026    --- EOS:
1027    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1028      store total Potential in totPhyHyd for diagnostics & EOS.
1029    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1030    --- Pressure/geopotential gradient:
1031    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1032    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1033      ( changes results of global_ocean_pressure )
1034    o NLFS + z-coord.: add eta*Rho' contribution.
1035    o accurate phiHyd when using interface-W at the middle between 2 centers
1036     ( changes results of ideal_2D_oce )
1037    o includes r* 2nd term in potential gradient.
1038    
1039    checkpoint48f_post
1040    Merging from release1_p12:
1041    o Modifications for using pkg/exf with pkg/seaice
1042      - improved description of the various forcing configurations
1043      - added basic radiation bulk formulae to pkg/exf
1044      - units/sign fix for evap computation in exf_getffields.F
1045      - updated verification/global_with_exf/results/output.txt
1046    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1047      (SBO) core products, including oceanic mass, center-of-mass,
1048      angular, and bottom pressure (see pkg/sbo/README.sbo).
1049    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1050      to avoid negative values in shallow regions.
1051      - updated verification/natl_box/results/output.txt
1052      - updated verification/lab_sea/results/output.txt
1053    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1054    o Added useSingleCpuIO option (see PARAMS.h).
1055    o Updated useSingleCpuIO option in mdsio_writefield.F to
1056      work with multi-field files, e.g., for single-file pickup.
1057    o pkg/seaice:
1058      - bug fix in growth.F: QNET for no shortwave case
1059      - added HeffFile for specifying initial sea-ice thickness
1060      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1061    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1062      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1063    o pkg/seaice:
1064      - adjoint-friendly modifications
1065      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1066    
1067    checkpoint48e_post
1068    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1069    o dynamics: change definition of computational domain & adapt mom_fluxform
1070      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1071    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1072        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1073        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1074        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1075        inverted_barometer solid-body.cs-32x32x1
1076      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1077    
1078    checkpoint48d_post
1079    o in preparation for r*:
1080     a) use pre-computed gradient of hydrostatic potential:
1081        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1082     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1083        => affects results of glob_oce_pressure (different truncation error)  
1084      update output.txt of ideal_2D_oce & global_ocean_pressure
1085    
1086    checkpoint48d_pre
1087    o in preparation for r*:
1088      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1089      pass the 2 comp. of the grad. as arguments to momentum S/R.
1090      but for the moment, only used if it does not change the results.
1091    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1092    
1093    checkpoint48c_post
1094    Modifications in treatment of initial flux forcing controls
1095    to avoid extra storing of flux fields.
1096    
1097    checkpoint48c_pre
1098    o Added tidal_basin_2d experiment (currently 1D!)
1099    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1100    
1101    checkpoint48b_post
1102    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1103     (modification to pressure gradient not yet implemented)
1104    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1105      (for U & V) that are used for vertical advection of momentum.
1106    
1107    checkpoint48a_post
1108    o In preparation for r*, use temp. array to compute vertical transport
1109       in flux-form momentum pkg. => change results of few test-exp.
1110      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1111                        lab_sea, natl_box & plume_on_slope
1112    
1113    checkpoint48
1114    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1115    
1116    checkpoint47j_post
1117    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1118    o moved adexch from forward_step to addummy_in_stepping
1119    o added exch in ctrl_map_...
1120    o aveFreq.=0. at end of cost_final to avoid overwrite in
1121      reverse checkpointing loop
1122    o Yet more changes in gmredi:
1123      * adgmredi_calc_tensor
1124        avoiding all recomputation of gmredi_slope_limit
1125      * adgmredi_x/y/rtransport
1126        added flag for excessive storing to avoid recomp. of
1127        u/v/rtans, dTdx/y/z
1128        -> this is not really necessary and very memory-consuming
1129      * adgmredi_slope_psi:
1130        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1131      * gmredi_slope_limit
1132        re-activated full calculation of taperfct for case 'ac02'
1133    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1134    
1135    checkpoint47i_post
1136    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1137    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1138      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1139    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1140    o gmredi: fix few bugs.
1141    
1142    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1143    This will be a good checkpoint to plug into the ecco-branch.
1144    o few modif.'s to get latest version adjointed
1145      (mainly kick out code in ini_linear_phisurf)
1146    o modif's to run adjoint with exactConserv
1147    o case GM_BOLUS_ADVEC should be cleaned
1148      S/R gmredi_slope_psi should be cleaned
1149    o verification/carbon now has exactConserv=.TRUE.
1150    
1151    checkpoint47g_post
1152    o time-average AIM output: becomes independent from statvars time-average
1153      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1154    o After TAF bug fix:
1155      Tested adjoint of gmredi package.
1156      Tests were done with checkpoint47 rather than with latest
1157      checkpoint47f_post since the latter is broken for the adjoint
1158      verification/carbon/ contains both ADM and TLM gradient checks.
1159    Here they are, before they get changed/lost/stolen.
1160    Mostly modif.'s to fix numerical sensitivities.
1161    Gradient checks OK for
1162    - GM_taper_scheme:
1163      * clipping
1164      * ac02
1165      * linear
1166      * glw91
1167      * dm95
1168      * ldd97
1169    - GMREDI_OPTIONS:
1170      * GM_VISBECK_VARIABLE_K
1171      * GM_NON_UNITY_DIAGONAL
1172      * GM_EXTRA_DIAGONAL
1173      * GM_BOLUS_ADVEC
1174    in conjunction with data.gmredi parameters to be checked in
1175    in a few minutes under verification/carbon/code/
1176    
1177    checkpoint47f_post
1178    Merging from release1_p10:
1179    o modifications for using pkg/exf with pkg/seaice
1180      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1181        and SEAICE_EXTERNAL_FLUXES
1182      - pkg/exf CPP options EXF_READ_EVAP and
1183        EXF_NO_BULK_COMPUTATIONS
1184      - usage examples are Experiments 8 and 9 in
1185        verification/lab_sea/README
1186      - verification/lab_sea default experiment now uses
1187        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1188    
1189    checkpoint47e_post
1190    o created a tag prior to creating a branch
1191    
1192    checkpoint47d_post
1193    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1194      at the bottom boundary had an erroneous half slip boundary condition
1195    o added bottom drag and no slip boundary condition capabilities to
1196      oceanic pressure coordinates code
1197    o added new verification experiment global_ocean_pressure, this experiment is
1198      also described in the tutorial section of the manual
1199    checkpoint47d_pre
1200    
1201    checkpoint47c_post
1202    o Added a verification experiment for a global cubed-sphere ocean run
1203      -  verification/global_ocean.cubed32x32x30
1204      -  uses pkg/therm_seaice and pkg/bulk_forcing
1205    
1206    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1207    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1208      when using P-coordinate; only implemented for atmospheric config.
1209    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1210      NOTES: requires option NONLIN_FRSURF to be "#define".
1211    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1212    
1213    checkpoint47b_post
1214    Merging from release1_p9:
1215    o pkg/seaice
1216      - removed GOTO's and added taf directives
1217      - double precision constants to reduce the g77 (Linux)
1218        to F77 (SGI) differences reported in release1_p8
1219    o tools/genmake
1220      - added SGI options
1221    o verification/testscript
1222      - updated to that of checkpoint47a_post
1223    o verification/global_ocean.90x40x15/input/eedata
1224      - modified for SGI f77 compatibility
1225    o verification/lab_sea
1226      - added description of sea-ice model
1227      - added missing matlab routines
1228      - added test of thermodynamics parallelization
1229    
1230    checkpoint47a_post
1231    o new pkg: aim_v23
1232     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1233       for now, keep the same surface forcing as before.
1234     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1235     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1236     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1237    o add diagnostic of surface correction term in monitor output
1238    
1239    o bulk_force and therm_seaice
1240    - Two packages:  bulk_force (Bulk forcing)
1241      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1242    - Earlier integration from Stephaine Dutkiewicz
1243      and Patrick Heimbach.
1244    - Two ifdef statements for compile time,
1245       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1246    
1247    checkpoint47
1248    differentiable version of checkpoint46n_post
1249    o bug fix in quasihydrostaticterms
1250    o * "clean" adjoint code (in terms of extensive recomputations)
1251        can now be obtained for all GMREDI options (i.e. for
1252        - GM_VISBECK_VARIABLE_K
1253        - GM_NON_UNITY_DIAGONAL
1254        - GM_EXTRA_DIAGONAL
1255        - GM_BOLUS_ADVEC )
1256      * However, wrong gradient check problem remains unsolved.
1257      * New CPP options have been introduced for different
1258        tapering schemes
1259    o external_fields_load now part of differentiation list
1260    o pressure needs multiple storing;
1261      would be nice to have store_pressure at beginning or
1262      end of forward_step, e.g. by having phiHyd global (5-dim.)
1263      (NB: pressure is needed for certain cases in find_rho,
1264      which is also invoked through convective_adjustment).
1265    o recomputations in find_rho for cases
1266     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1267    o #define ATMOSPHERIC_LOADING should be differentiable
1268    o ini_forcing shifted to begining of initialise_varia
1269    o Incorporating QNVS line search routines into MITgcm
1270      (this is separate code, and therefore not under pkg)
1271      lsopt/, optim/
1272    o Updated verification/carbon/
1273      - #define GM_VISBECK_VARIABLE_K
1274      - GM_taper_scheme    = 'ldd97'    
1275    
1276    checkpoint46n_post
1277    Merging from release1_p8:
1278    o verification/natl_box:
1279      updating new external_fields_load routine
1280    o New package: pkg/seaice
1281      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1282      The sea-ice code is based on Hibler (1979-1980).
1283      Two sea-ice dynamic solvers, ADI and LSR, are included.
1284      In addition to computing prognostic sea-ice variables and diagnosing
1285      the forcing/external data fields that drive the ocean model,
1286      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1287      The implied surface heat flux is then stored in variable
1288      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1289      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1290      non-local transport term.  Because this call precedes model
1291      thermodynamics, temperature under sea-ice may not be "exactly" at
1292      the freezing point by the time theta is dumped or time-averaged.
1293      N.B.: fairly large differences in accuracy occur across
1294            different platforms/compilers; comparison between
1295            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1296            generated output gives:
1297       T           S           U           V
1298      C D M    c        m  s        m  s        m  s        m  s
1299      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1300      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1301      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1302    
1303      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1304    o GAD:
1305      - generated new common blocks to account for call of
1306        same gad routines with differing traceridentities
1307        (needed to modify tracerIdentity indices in GAD.h)
1308      - generated separate common blocks for case useCubedSphereExchange
1309        (Department of Futurology)
1310      - parameter lists to gmredi_?transport: added tracerIdentity
1311      - added new key indices to tamc.h
1312    o external_fields_load:
1313      - added this routine to TAF list
1314      - needed to make some common blocks global and additional storing
1315        along the same lines as exf package (checkpoint_lev?_directives.h)
1316    o exf:
1317      updated external forcing package
1318      - bug fixes carried over from ecco-branch
1319        (missing OBCS_OPTIONS.h in two routines)
1320      - enable easy to use "no forcing".
1321      - added exf I/O for atmospheric loading
1322      - added exf I/O for runoff data
1323      - transfered scaling between exf <-> MITgcm to exf namelist
1324    o Adding new verification experiment global_with_exf.
1325      This verification experiment is almost identical to the
1326      global_ocean.90x40x15 experiment, except that it uses
1327      the exf (and cal) package instead of the
1328      external_fields_load routine (cf README file).
1329    
1330    checkpoint46m_post
1331    o modified testscript to return -- when there are no lines of "%MON" output
1332  o added new flag "quasiHydrostatic" for QH mode  o added new flag "quasiHydrostatic" for QH mode
1333    and new routine quasihydrostaticterms()    and new routine quasihydrostaticterms()
1334  o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)  o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)

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