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revision 1.32 by adcroft, Thu Nov 30 16:51:40 2000 UTC revision 1.438 by jmc, Thu Jan 27 17:37:28 2005 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint57c_post
7    o Change testing option (-ieee) to get closer agreement between g77 & ifort
8    o generate new output.txt files on faulks with g77 & the new -ieee option
9    checkpoint57c_pre
10    
11    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
12      update output.txt of exp. global_ocean.90x40x15
13    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
14      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
15    o add saltFlux(+File) forcing capability with periodicExternalForcing
16    o allow to use pkg diagnostics for GM-Redi & ThSIce output
17    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
18    o improvements for the MNC output from DIAGNOSTICS:
19      - correct handling of the unlimitied dimension
20      - all dims now have associated coordinate variables
21      - variables located at U, V, and Corner ("Z") points are now written
22        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
23        *all* data points are output
24    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
25    o added pkg/seaice/seaice_monitor.F
26    o mdsio_readfield.F can now read files visible only to master MPI process.
27    o pkg/seaice: some test code for ice-modified ocean stress
28    o exf_getffields interpolation defaults to bilinear for all scalar forcing
29      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
30      spurious negative numbers for precipitation and humidity.  Will cause
31      some small numerical differences for integrations using pkg/exf/exf_interp.F.
32    o pkg/ctrl/
33      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
34        May be enabled via doPackDiag
35      *  introduce z-scaling of
36         + gradient (doZscalePack) and
37         + control (doZscaleUnpack)
38    o pkg/mdsio/
39      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
40      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
41    
42    checkpoint57b_post
43    o simplify options in diagnostics_fill arguments (remove weird combinations)
44    o fix MNC coordinate variables so that they now contain per-face index
45      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
46      general, EXCH2 grids are only aligned to a "local" coordinate system
47    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
48    o Implement instantaneous output within pkg diagnostics:
49      setting a negative frequency in data.diagnostics produces
50     "snap-shot" output (as opposed to time-average if freq > 0)
51    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
52      NOTE: change ptracer diagnostics name: use 2 characters to work with
53            more than 9 tracers. Add also diagnostics of advect & diffus flux.
54    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
55      becomes the coordinate variable for the 'T' dimension
56    o add CF-style coordinate variables to MNC
57      - just a first cut:  numbers are meaningless on the cubesphere and
58        missing along the T axis but otherwise it works!
59    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
60    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
61    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
62      this is based directly on what the model compute, so that the content of
63      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
64    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
65    o clean up build options files for SunOS, in particular
66      - remove -traditional from xmakedepend
67      - change -xarch=v9 to -xarch=native for f77
68      - restore use of make (not gmake)
69      - add CC=gcc if using g77
70    o changes per discussion of AM, JMC, & EH3 today:
71      - move redundant "grid" variables out of "state" -- in preparation of
72        creating proper CF-style coordinate variables and in recognition
73        that any/all grid variables can be easily copied (eg. w/NCO) from
74        the grid files into any of the other NetCDF files
75      - *always* output grid variables with MDSIO (this will eventually be
76        changed)
77      - output MNC grid file if useMNC is true
78    o every instance of _END_MASTER() has been found and replaced with
79      _END_MASTER( myThid ) in order to satisfy certain picky Sun
80      preprocessors
81    o re-arrange diagnostics pkg initialisation:
82     - allow each package to extend the available diagnostics list
83     - add some checking and fix small problems (multi-threaded, ...)
84     - new S/R diagnostics_fill (replace fill_diagnostics):
85       look through the short list of active diag. (instead of the long list)
86       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
87    
88    checkpoint57a_post
89    o this set of changes restores TAMC compatibility
90      tested for global_ocean.90x40x15 adjoint on trough
91      (what a pain)
92    
93    checkpoint57a_pre
94    o some modifs in tools/build_options for sunos
95    o call ctrl_pack for ctrl at end for optimcycle=0
96    
97    checkpoint57
98    o add horizontal bi-harmonic viscosity for vertical velocity
99      - new parameter viscA4W (defaults to viscA4)
100      - affects only non-hydrostatic code
101      - to be done: no-slip lateral boundary conditions
102    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
103    o implement Implicit Vertical advection for pTracers
104    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
105      (implemented also for implicit vertical diffusion & advection)
106    o OBCS: extend application of tracer open boundary conditions
107      to a strip beyond the boundary of width Olx/Oly
108    o add call monitor to TAF set of required calls (flow directives)
109      and include in natl_box_adjoint
110    o untangle a few ifdefs related to cost, ctrl, autodiff
111      untangel a few ALLOW_ECCO_OPTIMIZATION
112    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
113      (theta2, salt2 in ecco_cost_weights)
114    
115    checkpoint56c_post
116    o OBCS as control variables
117      - update ctrl_ad_diff.list, obcs_ad_diff.list
118      - remove balance of obcs controls from default
119      - fix index bug nobcs in ctrl_init
120      - fix dummy fields filen in ctrl_pack
121      - add dummy weights for obcs
122    o lsopt: comment out fort.94 output
123    o optim:
124      - remove unnecessary header files
125      - adjusted namelists
126      - add xerbla.F to Makefile
127    o exf:
128      - multiple modifications of exf_check_range
129      - unit change in exf_init_runoff from [m/year] to [m/s]
130    o mdsio:
131      - i/o-vector change debugLevel from debLevA to debLevB
132    
133    checkpoint56b_post
134    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
135      is called from DO_THE_MODEL_IO
136      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
137      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
138      - clean up PTRACERS_WRITE_TIMEAVE a little
139    o add another verification experiment that tests both the cfc-pkg and
140      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
141      reactive tendencies treated inline with regular timestepping
142    o testreport previously did a lousy job of comparing small numbers, so
143      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
144      implemented in the little c-progam tmp_cmpnum.c which is embedded in
145      testreport.
146    o ptracers_monitor: bug fix for MPI
147    
148    checkpoint56a_post
149    o GCHEM: finish reorganizating the package
150      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
151        (introduces another 3D-array for each passive tracer, but only if
152        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
153        gchemTendency is not needed because the timestep is done separately)
154      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
155      - GCHEM is now---more or less cleanly---separate from PTRACERS
156      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
157        so clear to me how that should be done in a general way.
158    o CFC: improve formatting of output in CFC_ATMOS
159    o PTRACERS:
160      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
161        that ALL experiments with ptracers enable can be checked. This makes
162        GCHEM_MONITOR obsolete.
163      - include a runtime parameter PTRACERS_monitorFreq that defaults to
164        monitorFreq
165      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
166    o add PTRACERS (PTR0[1-5]) to testreport output
167    o exf_check_range:
168      * default changed to .TRUE.
169      * will check values for niter0 if debLevA, every timestep if debLevB
170      * STOP in exf_check_range if 'out of range'
171      * range chosen generous to allow for potential extema
172      TBD: a version with stricter range
173           permitted range would be runtime parameters
174    o GMredi:
175      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
176      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
177      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
178    o GCHEM:
179      - move call to GCHEM_FORCING_SEP, so that it is now called before
180        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
181      - introduced a useGCHEM runtime flag and applied it everywhere.
182      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
183        this flag is now only visible within GCHEM-pkg routines.
184      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
185        be replaced by a 3D array that is computed before thermodynamics; for
186        this, the tracer ID iTracer had to be included into the parameter list
187        of ptracers_forcing
188      - set up forward_step to call gchem_forcing, that will replace
189        gchem_forcing_int in ptracers_forcing
190      - cleaning up
191    o small cleaning of exch2: remove files that are also in eesupp/src
192    
193    checkpoint56
194    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
195    o mnc: cleanup "full" files--fixes out-of-memory problem
196    o ECCO-GODAE
197      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
198      * fully merged and updated from SIO code
199        windstress sign change affects
200        - exf_inscal_[u/v]stress
201        - sign of xx_tau[u/v] adjustments
202        - signs in cost_scat
203      * ctrl_get_gen: avoid update of tau[u/v] for first few days
204      * natl_box_adjoint updated and compressed
205      * 2-level checkpoint switch added
206        (tested in EXP. 1 of natl_box_adjoint)
207      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
208    o SVD
209      * first complete, non-hacked version for SVD calculations
210      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
211        performed via direct access files admtlm_vector.it????
212        (via ctrl_[un]pack)
213      * optimcycle is used for ARPACK iteration counter
214        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
215      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
216        and add linear transforms where necessary
217      * controls are initial/final SST, SSS (can be extended; need to check
218        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
219    o mdsio: filename info to both stderr, stdout
220    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
221      from sign change
222    
223    checkpoint55j_post
224    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
225      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
226    o add consistent build directories and .cvsignore files to verification
227    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
228    o make all subroutines 30 or less characters in length for certain older
229      compilers to work (a thorough search only turns up two routines in
230      pkg/ptracers)
231    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
232      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
233    
234    checkpoint55i_post
235    o change arrays for total vertical diffusivity (2.D if explicit,
236      3.D if implicit) ; each ptracer uses its own background value.
237    o added mnc/NetCDF output capability to ocn_compon_interf
238      - added bits to verification/cpl_aim+ocn so that it can run on
239        ITRDA and other clusters without the mpirun "-wd" option
240    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
241      configuration
242    o give MNC the ability to create additional files rather than
243      exceeding a specified file size limit "MNC_MAX_FILESIZE"
244      - the default is just less than 2GB which is a practical limit
245        on many systems
246    o Compute the non-local term using either KPP vertical diffusivity (=default)
247       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
248    
249    checkpoint55h_post
250    o add verification test "vermix"
251    o remove all the *_ioinc flags and replace with the single global
252      outputTypesInclusive flag
253    o allow to set a vertical profile of vertical diffusivity for T & S
254    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
255    o useMNC moved from data.mnc to data.pkg
256    
257    checkpoint55g_post
258    o Renaming carbon AD experiments to comply with testreport conventions
259    o Updating adjoint of Held-Suarez hs94.1x64x5
260    o Fixing directives for non-ECCO forward_step, after ECCO directives
261      have been fixed to avoid recomp. of do_oceanic_phys
262      Works well for global_ocean.90x40x15,
263      but recomp. issue remains for carbon
264    o Updating adjoint output for natl_box_adjoint after
265      pkg/ecco has been modified (see taga c55d_post)
266    
267    checkpoint55f_post
268    o rename to timeave_init_fixed
269    
270    checkpoint55e_post
271    o some delicate re-shuffle of store directives to avoid one
272      extra call of do_oceanic_physics
273      affects ecco_the_main_loop.F, do_oceanic_physics.F
274      checkpoint_lev1_directives.h
275    o NB: this may break global_ocean adjoint temporarily,
276      but it is clear how to fix it. Will do later, need this now.
277    
278    checkpoint55d_post
279    o ECCO specific cost function terms (up-to-date with 1x1 runs)
280    o ecco_cost_weights is modified to 1x1 runs
281    o modifs to allow observations to be read in as
282      single file or yearly files
283    o enable to read exf forcing fields as either
284      single file or yearly files (flag useExfYearlyFields)
285    checkpoint55d_pre
286    
287    o switch between 2-level and 3-level checkpointing
288    o add ability of MNC to write local and "partial" (eg. 2D slices where
289      the full 3D field is never actually stored) arrays to NetCDF files
290      with the correct (that is, the complete multi-dimensional) set of
291      array indicies
292      - used in mom_vecinv() to write the diagFreq output
293      - tested (demonstrated) in verification/aim.5l_cs
294    o further mnc-ification
295      - add verification/lab_sea to the list with mnc setups
296      - fix undefined mnc v-names in cd_code
297      - add kpp to mnc output (both snapshot and timeave)
298    o non-hydrostatic code
299      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
300        in calc_gw.F
301      - defaults to viscAh
302      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
303        friction or Leith) in non-hydrostatic mode, as long as there is
304        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
305    o pkg/cost
306      extend simple cost functions to treat time mean quantities
307      (T,U,V) via cost_accumulate_state from cost_tile
308    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
309        be 2 times larger than the minimum size the advection scheme requires.
310        now get a perfect conservation of salt in advect_cs test-exp (updated)
311    o GGL90 (Gaspar's TKE mixed layer)
312      - add horizontal diffusion of TKE, requires exchanges in
313        do_fields_blocking_exchanges, horizontal diffusivity is zero by
314        default. In OPA there is no horizontal diffusion of TKE but the
315        mixing coefficients are computed from a horizontal average of TKE of
316        6 points or so. I think that diffusion has a little more physical
317        justification.
318      - clean up ggl90_calc in the hope of reducing memory usage (this hope
319        was in vain)
320      - mask tke-variable in ggl90_init
321    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
322    o fix biharmonic diffusion on CS-grid.
323    o more obcs stuff
324      - added obcs_external_fields_load as an alternative to the EXF-pkg option
325        for reading boundary values. This routine is called from
326        obcs_prescribe_read
327      - updated obcs_check
328      - changed sponge layer relaxation parameter units for days to seconds
329      - turned off sponge layer by default
330      - changed argument list of OBCS_CALC to myTime+deltaTclock
331      - fixed about 35 bugs in obcs_external_fields_load
332    
333    checkpoint55c_post
334    o obcs stuff
335      - new runtime flags useOBCSprescribe, useOBCSbalance
336      - re-arranged obcs_calc
337      - moved exf_getobcs to obcs_prescibe_read
338        obcs_prescibe_read is called after ORLANSKI stuff
339        and independent of it (executable can contain all).
340      - updated obcs_check
341      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
342        These may be necessary only if tangential velocities are
343        prescribed at OB, not sure, needs testing.
344    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
345      which simplifies the calls and passes the ifc check-bounds test
346    
347    checkpoint55b_post
348    o add a 2D scalar, Z location, exchange_2 routine.
349    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
350      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
351      affects advect_cs results (for the wrong reason): update output.txt
352    o use a more standard discretization for biharmonic viscosity ;
353     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
354      affects results of dome set-up: update output.txt
355    o fix gad_advection.F (CubedSphere part), back to version 1.23
356    o fix bug in mom_vi_del2uv.F (CubedSphere part).
357    
358    checkpoint55a_post
359    o merged code to
360      * prescribe/read time-dependent open boundaries
361        (works in conjunction with exf, cal)
362      * sponge layer code for open boundaries
363      * each boundary N/S/E/W now has its own CPP option
364        (healthy for the adjoint)
365    
366    checkpoint55
367    o up-to-date adjoint of previous breaks
368      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
369      - global_ocean_ebm: adjoint still needs fix (TLM ok)
370      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
371      - carbon: * remove tr1-related adjoint verification
372                * add ptracer as control variable
373    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
374      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
375    
376    checkpoint54f_post
377    o in verification/carbin/ remove experiment related to
378      ALLOW_PASSIVE_TRACER (array tr1 etc)
379      code_ad/ input_ad/ results_ad
380    
381    o add two new packages
382      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
383        + subject to optimization (memory)
384      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
385        + subject to reordering (many GOTOs in the original code)
386        + so far opps is called for every (i,j) point, and then operates in
387          the vertical; one may want to reorder the scheme in order operate in
388          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
389          fields)
390    o overhaul of IO so that we now have flags for MDSIO and/or MNC
391      - all verification tests compile and run with linux_ia32_g77
392      - defaults are compatible with current input files--nothing
393        should change if you were not previously using MNC
394      - MNC output has been added in numerous places (eg. timeave)
395        but there are still a few writes not yet do-able with MNC
396        (this is in progress)
397      - flags now allow for either/or/both use of MDSIO and MNC and
398        documentation will soon follow
399      - numerous small formatting cleanups for ProTeX
400    o add version info (via BUILD_INFO.h) to MNC and stdout
401    
402    checkpoint54e_post
403    o add two new packages
404      - pp81 (Packanowski and Philander, 1981), Richardson number and
405        stratification dependent mixing
406      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
407      - these scheme operate in a similar manner as KPP (without ghat, of
408        course), however there is only one diffusivity that is used for both
409        temperature and salinity (and passive tracers)ç
410    o add offline package
411    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
412      provided by Stephanie Dutkiewicz
413    o genmake2: add ability to search for C compilers and cleanup test output
414      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
415    
416    checkpoint54d_post
417    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
418    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
419      leading to additional shift by 5 days each year of integration
420       (i.e. leading to considerable offset over the years)
421    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
422    o start with no AB and no initial filtering (staggerTimeStep):
423      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
424    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
425      (external loading & cpl import/export stay in forward_step.F)
426    o update coupling interface to work with new staggerTimeStep
427    o change MDSIO ptracers_pickup.
428    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
429    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
430    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
431    
432    checkpoint54c_post
433    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
434      this affects (truncation error) output.txt of test-exp:
435       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
436    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
437    o change Qnet to always be the net heat flux, (+upward).
438      affects (truncation error) output of natl_box exp.: updated
439    o define the max number of passive tracers in PTRACERS_SIZE.h
440    o start to test mnc routinely in exp0
441    o add sea-ice loading (sIceLoad) as a new forcing field.
442    
443    checkpoint54b_post
444    o add testreport "-j JOBS" option for parallel builds (tested and pretty
445       impressive on Altix and Opteron systems)
446    o diagnostics can now write NetCDF files through the mnc package
447    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
448    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
449    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
450      affects (truncation error) output of lab_sea & natl_box exp.: updated
451    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
452    
453    checkpoint54a_post
454    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
455    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
456    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
457    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
458      + internal_wave (shift in writing cg2d_ini_res)
459    checkpoint54a_pre
460    
461    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
462      - modified verification/lab_sea and natl_box_adjoint accordingly
463    
464    checkpoint54
465    checkpoint53g_post
466    o prepare splitting of thermodynamics: store convect.counter in common block
467    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
468      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
469    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
470    o new parameter "nShapS": allow to treat differently S from T (nShapT)
471    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
472    o restore adjointability
473    
474    checkpoint53f_post
475    o modifications that affect AIM experiment results (update output.txt):
476      - no advection of S at top interface Nr (pkg/generic_advdiff)
477      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
478    o AIM pkg:
479      - include stability function into surf.Flux derivative relative to Tsurf
480      - calculate clear-sky radiation & surface temp. change (for diagnostics)
481    
482    checkpoint53e_post
483    o merged cylindrical coord configuration
484    o added rotating_tank experiment
485    checkpoint53e_pre
486    
487    checkpoint53d_post
488    o faulks upgraded: re-generate output.txt that have changed:
489       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
490    o Added Bryan and Lewis, 1979, vertical diffusivity profile
491    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
492    o added Sadourny discretization of Coriolis
493      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
494      - re-enabled use of omega3 (useAbsVorticity)
495    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
496      vector-invariant equations
497      - note: does *NOT* yet use same variable visc. for no-slip BC's.
498    o recoded the lateral boundary conditions for non-hydrostatic w, this time
499      hopefully without new bugs
500      - still to do: biharmonic friction for non-hydrostatic w
501    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
502    o regenerated output for global_ocean_ebm (using -ieee)
503    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
504      of mom_common/
505      - simple re-arrangement of instructions within computing loop
506    checkpoint53d_pre
507    
508    checkpoint53c_post
509    o new version of coupler for AIM+thSIce and Ocean models
510     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
511     - land: change Evaporation of snow
512     - aim with thSIce: fix bug in snow-precip.
513    o changes to calc_gw.F
514     - bug fix for w^2 term near the bottom boundary
515     - (hopefully) improve the lateral slip boundary condtions for use with
516        partial/looped cells
517      - because the bug fix changes two verification experiments anyway (exp5
518        and plume on slope), change the lateral boundary condition from half slip
519        to the value of no_slip_sides
520    o ebm package wasnt quite up to the parallel task. Fixed that.
521    o Adjoint of EBM package + verification
522      * TLM OK
523      * ADM not sufficient accuracy yet (needs further testing)
524    
525    checkpoint53b_post
526    o Commiting new energy balance model to repository
527      * package is pkg/ebm
528      * verif. is verification/global_ocean_ebm
529      * references are in ebm_driver.F
530    C      * X. Wang, P. Stone and J. Marotzke, 1999:
531    C        Global thermohaline circulation. Part I:
532    C        Sensitivity to atmospheric moisture transport.
533    C        J. Climate 12(1), 71-82
534    C      * X. Wang, P. Stone and J. Marotzke, 1999:
535    C        Global thermohaline circulation. Part II:
536    C        Sensitivity with interactive transport.
537    C        J. Climate 12(1), 83-91
538    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
539    C        Destabilization of the thermohaline circulation
540    C        by atmospheric eddy transports.
541    C        J. Climate 7(12), 1870-1882
542    o Will need long integration testing.
543    checkpoint53b_pre
544    
545    o created pkg/mom_common in preparation for variable viscosity code
546    o renamed and split ini_mnc_io
547    o pkg/land: only liquid water can diffuse or run-off
548    o AIM using land: soil wetness availability account for snow
549    o added printMapIncludesZeros to EEPARMS namelist
550    
551    checkpoint53a_post
552    o restore TAMC compatiility for exf_constants.h
553      (no usage of _d in .h)
554    o Additional storing in KPP in an attempt to fix
555      TAMC problem with adjoint of KPP code.
556      (no success...)
557      Identical code works fine with TAF.
558    o Fixed verification/natl_box_adjoint experiments.
559      Initial conditions for Experiments 4 and 5 are now
560      set to "SEAICE_initialHEFF=0", which is more reasonable,
561      and hence gives results closer to that of Experiment 2.
562      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
563    
564    checkpoint53
565    o stable checkpoint with up to date adjoint
566      TLM tests only run for 1st grdchk at the moment. Its unclear if
567      this is a code problem or a problem with resetting code for g_
568      variables that is being autogenerated wrong.
569      Otherwise:
570       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
571       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
572         are both still in chaos following their security messes.
573    
574    checkpoint52n_post
575    o various build (mostly genmake2) changes including:
576      - ability to build/run more easily within Cygwin and MacOS X
577      - more complicated Makefiles with a stronger dependence on Gnu Make
578    o pkg/seaice modifications
579      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
580        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
581        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
582      - changed proxy for geostrophic velocity and updated
583        verification/lab_sea/results/* accordingly
584      - removed ADI dynamic solver from pkg/seaice
585      - replaced all occurrences of 1/CSTICE or 1/CSUICE
586        they caused a segmentation fault under certain circumstances
587      - removed unused field WATR
588    o bug fix in exf-package:
589      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
590         now reflect that.
591    o small fixes in the cal-package:
592      - set reference date to first of January for the 'model'-calendar
593      - failing of cal_CheckDate in cal_FullDate now actually results in a
594        warning
595    o small modifications in exf-package to increase flexibility:
596      - change climtempfreeze from a constant to a runtime parameter that
597        is specified in data.exf_clim (default = -1.9)
598      - introduce runtime parameter windstressmax (default = 2.0) that is
599        specified in data.exf
600    o fix in pkg/thsice:
601      - update Evap (Tsf changes) to be consistent with Latent heat flux
602      - maintain snow precipitation unchanged (even if Tsf >=0).
603     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
604    
605    checkpoint52m_post
606    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
607      this does not change any of the results, because myIter=0 in swfrac always
608      lead to jwtype=2 (the default anyway), but the call makes little sense
609      as a default
610    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
611    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
612      atmospheric model (AIM) to use it ; add a "slab ocean" component.
613    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
614    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
615    o extending useSingleCpuIO option to work with new exch2 I/O format
616      - old-style, missing-tile I/O is still accessible by defining CPP
617        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
618    o monitor package can write to NetCDF files and/or STDOUT
619    o fix re-definition bug in MNC_GRID_INIT_ALL()
620    o doc/api_reference added
621      - a framework for building an API Reference Manual using all
622        the "protex" comments embedded in the code
623      - see pkg/generic_advdiff, pkg/mnc for examples
624    o MNC:
625      - make myThid the last argument for all subroutines
626      - new default for the grid files: NO halos
627      - add useMNC and other run-time flags
628      - separate per-file-group handling of the unlimited dimension
629      - early initialization of MNC w/ flags read at the eeboot stage
630        and lookup tables set in initialize_fixed
631      - write all MNC output to a freshly-created directory
632    o thermodynamics sea-ice (thsice) is now tested with testreport.
633    o test exp. advect_cs: use the standard cs32 grid ; update output.
634    o Added functionality to grdchk:
635      pick global i,j,k position (or nearest wet) where to perform check.
636    
637    checkpoint52l_post
638    o new land formulation:
639      a) use ground enthalpy as prognostic variable to ensure exact
640         energy conservation.
641      b) account for water temperature and for latent heat of freezing
642         in all processes (rain, run-off, ground storage)
643      c) compute surface and ground temperature implicitly.
644    o aim_v23 modification for new land model:
645      a) Treat separately land / ocean / sea-ice surface fluxes
646         to allow implicit computation of land & sea-ice surface temp.
647      b) add snow precipitation.
648    checkpoint52l_pre
649    
650    o fix problem (when 1 tile is empty) in min/max monitor.
651    o fix bug in timeAve (u,vZetatave in common block)
652    o no restoring terms under ice for pkg/seaice
653    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
654    o bug fix for pkg/seaice pickups
655    o change MNC call locations and add coordinate attributes
656    o mask vorticity at the corner ; affects global_ocean.cs output
657    o fix ini_curvilinear_grid ; test CS experiments with mpi
658    o aim.5l_cs: modify sea-ice fraction input file ; update output
659    o exf: Adding simple range check routine for exf fields after read
660    
661    checkpoint52k_post
662    o removed top-level directory "diags"
663      - we migrated these functions to pkg/timeave a long time ago
664    o fixed bug introduced in pkg/monitor
665    o accuracy ctrlprec = 32 insuffient for gradient checks using
666      averaged fields (I/O via cost_averages)
667      -> use ctrl.h in active_file*.F to control I/O precision.
668    o paramter list of CALL ADTHE_MAIN_LOOP
669    o added initial do_the_model_io to ecco
670    o set all ...Freq to zero after cost_final
671      taveFreq, dumpFreq, pChkptFreq
672    o MAIN and ECCO differentiability restored
673    
674    checkpoint52j_post
675    o fix nchklev in tamc.h for global_ocean...
676    o Bringing flow and store directives up-to-date
677    o Really weird thing!
678      call do_the_model_io from the_main_loop with parameters
679      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
680      TAF places a faulty re-call of initialise_varia
681      after cost_final call which should not be there!
682    checkpoint52j_pre
683    
684    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
685      error messages
686    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
687    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
688      debug output
689    o modfied mdsio_writefield.F to handle non-global files under exch2
690    o update AIM Cubed-Sphere exp (aim.5l_cs):
691      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
692    o update AIM Equatorial Channel exp:
693      use standard aim_v23 pkg and change the SST fields to be more realistic.
694    o globalFile now works with exch2
695    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
696      mon_vort3.F to make exch2 friendly with >1 tile per cube face
697    o limit timeave output for hi-res integrations
698    
699    checkpoint52i_post
700    o removed CPP_EEOPTIONS.h from verification/*/code
701    o updated the tiling for global_ocean_pressure
702    checkpoint52i_pre
703    
704    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
705      the old pkg/aim).
706    
707    checkpoint52h_pre
708    o shortened offending lines in exch2_send_rx?.template
709    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
710    o genmake2: add build & execute test for NetCDF code
711    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
712      old grid files, moved CPP_EEMACROS.h to pkg/exch2
713    o added useSingleCPUIO flag to monitor.F and mon_out.F
714    o added temporary hack for sea-ice dynamics on the cube:
715      metric terms are ignored and it is assumed that
716      there is no sea-ice on cube faces 1, 2, 4, and 5.
717    
718    checkpoint52f_post
719    o added exch2 cube routines to pkg/exch2
720    o modified hs94.cs-32x32x5 to use it
721    o added new grid files to hs94.cs-32x32x5
722    checkpoint52f_pre
723    
724    checkpoint52e_post
725    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
726      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
727    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
728      to work with implicit vertical advection and AB ;
729    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
730    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
731     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
732    checkpoint52e_pre
733    
734    o fix bug in impldiff when Nr=1 or Nr=2.
735    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
736    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
737    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
738      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
739    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
740    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
741    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
742    
743    checkpoint52d_post
744    o re-tiled many expts to allow comparison in multi-processor mode
745      - updated output accordingly
746      - changed hs94.128x64x5 to use intial T from file rather than use the
747        random number generator
748    o add infrastructure in model routines for fizhi and gridalt packages
749    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
750    o changes to permit hi-res, cubed-sphere, configuration
751      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
752      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
753      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
754        of surface winds for the cube
755      (A verification experiment, based on global_ocean.cs32x15, but with
756       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
757       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
758       complete with example surface forcing files and matlab scripts to look
759       at the output and compare it with that of global_ocean.cs32x15.)
760    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
761       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
762       to conform to the common rule.
763    o check-in the first version of the coupler + interfaces for multi-components
764       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
765       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
766       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
767       - ocean and atmos. share the same horizontal grid (no interpolation).
768       - exchanges between component and coupler is done in forward_step
769    o new verification experiment, cpl_aim+ocn:
770       coupled ocean - AIM atmosphere on cs32 grid.
771    
772    checkpoint52d_pre
773    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
774    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
775    
776    checkpoint52c_post
777    o Fixing OPTIONS files for use of exf:
778      - ALLOW_ECCO not needed
779      - ECCO_CPPOPTIONS.h should not be included from
780        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
781        as has been the case in the past
782      - All cal/exf related options are currently set in
783        single header file. Should remain so until we
784        agree on a consistent new policy.
785    o Removed all CPP options for cal package.
786      cal has no more CPP options.
787    o modified STOREs in GAD_ADVECTION
788    o corrected key comp. for passkey
789    
790    checkpoint52b_post
791    o new version: "thsice" of thermodynamic sea-ice pkg:
792     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
793     - modify fluxes but do not change theta directly;
794     - light cleaning of bulk_force pkg (still needed with thsice).
795     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
796       + output_thsice.txt to test thsice & bulk_force pkgs.
797    o put back grid & coriolis monitor output.
798    checkpoint52b_pre
799    
800    o call "do_the_model_io" at the beginning (=> dump initial state)
801    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
802    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
803      (need info on NUMBER_OF_PTRACERS)
804    o missing PTRACERS headers in some routines
805    o default tamc.h in pkg/autodiff supposed to crash
806      to ensure proper customization
807    
808    checkpoint52a_post
809    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
810      - moved surfaceTendencyTice from pkg/seaice to main code
811      - subroutine FREEZE_SURFACE now limits only surface temperature
812        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
813        => new output.txt for global_ocean.cs32x15 & global_with_exf
814      - keep the old version of FREEZE for backward compatibility;
815        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
816      - corresponding modifs for TAF directives
817    o added surface flux output variables to TIMEAVE_STATVARS
818    o time-averaged output for pkg/ptracers
819    o fix problem with ECCO-related divided adjoint
820      snapshot file was missing some ad-variables,
821      but no warning issued by TAF
822    
823    checkpoint52a_pre
824    o some bug fixes for #undef REAL4_IS_SLOW
825    
826    checkpoint52 = ecco_c52_e35
827    o after testing adjoints of checkpoint51u_post
828    
829    checkpoint51u_post
830    o this is the post-merge tag of the ecco-branch
831      (needs another clean checkout and re-testing)
832    o various natl_box_adjoint configs and results
833      but no input fields
834    o obcs adjoint not yet merged!
835    o adding ECCO global 1x1 and 2x2 degree configs
836    o updated/extended some store directives for seaice
837    o pkg/ecco now containes ecco-specific part of cost function
838    o top level routines the_main_loop, forward_step
839      supersede those in model/src/
840      previous input data.cost now in data.ecco
841      (new namelist ecco_cost_nml)
842    o in ctrl/ cleaned some cross-dependencies and updated CPP options
843    
844    checkpoint51t_post
845    o this is the pre-merge tag of the ecco-branch
846    
847    checkpoint51s_post
848    o cleanup: removed various obsolete #define-s
849    o pkg/grdchk
850      - renamed 'ph-grd 3' to 'grad-res'
851      - merged from ecco-branch
852        (remaining bug fixes for obcs gradient checks)
853      - additional high-precision output for testreport
854        (grep for 'precision_grdchk_result')
855    
856    checkpoint51r_post
857    o cleaned up or removed CPP_OPTIONS.h files
858    o updated results for some of the tests to reflect the new
859      optfiles (-ieee: -O0 instead of -O3)
860    
861    checkpoint51q_post
862    o cd_code:
863      - moved cd_scheme.F -> cd_code_scheme.F
864      - separate read_checkpoint from cd_code_ini_vars.F
865      - separated cd_code part from write_checkpoint
866      - updated AD_SOURCE, generated .flow
867      - added CD_CODE_VARS.h to the_main_loop
868      - Moving cd_code specific store dir.s to pkg/cd_code
869    o ctrl package totally restructured
870      - pack/unpack now optional and decoupled from
871        xx_/adxx_ I/O
872      - ctrl_pack/unpack cleaned
873        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
874      - confined inclusion of AD_CONFIG.h to where necessary.
875    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
876    
877    checkpoint51p_post
878    o create initial cd_code package
879      - WARNING: the initialization of fields within packages
880        is broken because INI_FIELDS (where READ_CHECKPOINT is
881        called) is called *before* PACKAGES_INIT_VARIABLES.
882        This seems to be backwards since
883        1) its important to initially zero the entire field including
884           the "halo" region
885        2) zeroing needs to be done *before* reading pickup info
886           and the pickup call might or might not happen in any
887           particular run
888      - this needs an overhaul for R2
889    o cleanup verification/*/code/GMREDI_OPTIONS.h
890    o cleanup testreport
891    
892    checkpoint51o_post
893    o bringing AD-related verif's up to date with genmake2
894      - carbon/
895      - global_ocean.90x40x15/
896      - hs.94.1x64x5/
897      - (front_relax/ )
898    o (more) consistent directory structure for AD-related verif.'s
899    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
900    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
901    o bug fix in find_alpha.F for MDJWF:
902      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
903        change rho -> rho-rhoConst
904      - replace call find_rho to find_rhonum
905    o initialisation of rFlx extended to full array (required by TAF)
906      and shifted to thermodynamics
907    o removed PTRACERS.h in ptracers routine
908    o added surfacetendencyPtr to S/R parameter list pracers_forcing
909    o Correcting initialisations for fVerU, fVerV.
910    o helping TAF to recognize dependency on kUp for
911      fVerU, fVerV
912    o Replacing delZ by delR in pkg/ctrl/
913    checkpoint51o_pre
914    
915    o undid all of cp51 pending some cleanups and discussion
916    o added the [#include "AD_CONFIG.h"] statement to all files that need
917       it for adjoint/tl #defines
918     o re-worked the build logic in genmake2 to support AD_CONFIG.h
919     o removed tools/genmake since it no longer works
920    
921    checkpoint51n_post
922    o modifications to make FREEZE flux visible to pkg/kpp
923      - moved surfaceTendencyTice from pkg/seaice to main code
924      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
925      - subroutine FREEZE now limits only surface temperature
926        (this means new output.txt for global_ocean.90x40x15,
927         global_ocean.cs32x15, and global_with_exf)
928    o added surface flux output variables to TIMEAVE_STATVARS
929    
930    checkpoint51n_pre
931    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
932    o added [#include "AD_CONFIG.h"] to all files that use the following
933      defines:
934      - ALLOW_ADJOINT_RUN
935      - ALLOW_TANGENTLINEAR_RUN
936      - ALLOW_ECCO_OPTIMIZATION
937    
938    checkpoint51m_post
939    o incorporating changes to get TAMC/TAF working in genmake2
940      - added new TAMC/TAF targets to the Makefile
941      - various cleanups related to package handling
942      - these changes should have no impact on the forward model
943    
944    checkpoint51l_post
945    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
946     - faster algorithm for cal_addtime.F
947     - higher precision arithmetic, where needed
948     - pkg/exf *startdate variables changed from calendar date to
949       model integration time
950    
951    checkpoint51l_pre
952    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
953    o enable to apply restoring on S & T only in a latitude band.
954    o update output (external_forcing_surf modif. change truncation errors)
955       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
956    
957    checkpoint51k_post
958    o change default to: useNHMTerms=.FALSE.
959     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
960       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
961     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
962        exp1, ideal_2D_oce
963     - change data file of oceanic exp (leave the results unchanged for now)
964       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
965    o set gravitySign automatically according to the vertical coordinate used
966      (and change sign: back to "logical" value: +1 when R increases downward)
967    o added an include barrier to the default CPP_OPTIONS.h and
968      removed the #include "PACKAGES_CONFIG.h" from it
969    o fix a bug in mom_fluxform (from chk51j_post)
970    
971    checkpoint51j_post
972    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
973    o adjusted some flow directives (dynamics, thermodynamics)
974    o added cubed-sphere case to test cost function
975    o heckpoint_lev?_directives.h now include
976      pkg-specific directives, whenever those are enabled.
977    o Moving pkg-specific flow directives to corresponding pkg
978      Moving pkg-specific differentiation list to corresponding pkg
979      Moving pkg-specific checkpoint-lev storing to corresponding pkg
980      ---> conventions are
981           - pkg_ad.flow
982           - pkg_ad_diff.list
983           - pkg_ad_check_lev?_dir.h
984    
985    checkpoint51i_post
986    o merge of the branch-genmake2
987      - knowingly breaks the older genmake
988      - automatic generation of all ALLOW_${PKG_NAME} defines
989      - new testreport supersedes older testscript
990    o large number of package inclusion and header cleanups
991    checkpoint51i_pre
992    
993    o new output for adjoin of global ocean vector invariant
994    o fix for checkpoint of thermodynamic seaice and bulk_force
995    o Steph gchem various cleanups
996    
997    checkpoint 51h_pre
998    o fixed some single quotes
999    o modify gchem pkg to be more versatile
1000    o modifications to clean up dic pkg
1001    o add pkg/cfc
1002    
1003    checkpoint51g_post
1004    o provide links for ARPACK and ADM*TLM
1005    o start removing verification/vero/
1006    o update AD-related stuff
1007      (in particular some IF-statements in model/src/ routines)
1008    o adding to verification/global_ocean.90x40x15/ adjoint of
1009      vector invariant setup
1010    
1011    checkpoint51f_post
1012    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1013    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1014      of tracer Green's fucntions for ocean inversion project.
1015    
1016    checkpoint51f_pre
1017    o Added on-the-fly spatial interpolation capability
1018        "USE_EXF_INTERPOLATION" to pkg/exf.
1019      - This is a temporary Cartesian-grid hack until
1020        the super-duper ESMF coupler becomes available.
1021      - See verification/global_with_exf/README for usage example.
1022      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1023        flags and modified pkg/seaice accordingly.
1024    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1025        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1026        non-local transport term.
1027    
1028    checkpoint51e_post
1029    o pkg/mom_vecinv:
1030      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1031      - add time-ave diagnostic of vorticity advection.
1032    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1033    o atmospheric geopotential: - include water vapor effect;
1034                                - use p^kappa in p* scaling.
1035    o land pkg: read initial state from files.
1036    o AIM : add stratospheric drag in the upper level
1037    
1038    checkpoint51d_post
1039    o change function ILNBLNK (=> last non-blank char.) to return zero
1040      (instead of the string length) when the string. char is empty
1041    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1042    o modif's to restore TAMC compatibility
1043      - avoid "_d" constructs in PARAMETER declarations
1044      - avoid interrupting lines by comment lines
1045    o Use cluster local disks for purely local I/O
1046      vs. globally visible disks needed for ctrl stuff
1047      (merged from ecco-branch)
1048      - new active_file_loc... and mdsio_..._loc routines
1049      - affected packages: autodiff, ctrl, grdchk, mdsio
1050    
1051    checkpoint51c_post
1052    o introducing integer flag debugLevel
1053      - debLevZero: suppress all output
1054      - debLevA: standard
1055      - debLevB: equivalent to current debugMode=.TRUE.
1056    o introducing pathname variable mdsioLocalDir for mdsio
1057      that can be specified at runtime
1058      (relevant for cluster I/O to local disk)
1059    `
1060    >>>checkpoint51b_post
1061    adjoint of ptracers
1062    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1063    o extended state in checkpoint_lev?, etc.
1064    o alternative ctrl/cost with tr1 or ptracer
1065    o new comlev1_bibj_ptracers
1066    o new ptracers.flow
1067    o made ptracers_forcing same as external_forcing_s
1068    o added verification for adjoint with ptracers
1069      - adm. grdchk fail so far
1070      - tlm. grdchk OK
1071      - checked tapelev/comlev recomputations: OK
1072    <<<checkpoint51b_pre
1073    
1074    checkpoint51a_post
1075    o added code for biogeochemistry package
1076      - new pkgs: dic, gchem
1077      - new subroutine in ptracers
1078    o modify code for biogeo packages
1079      - in model/src and pkg/ptracers
1080    
1081    checkpoint51
1082    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1083      - autodiff, ctrl, exf, grdchk, seaice
1084      kept separate packages
1085      - cost, ecco, obcs
1086    o updating verification/internal_wave, verification/lab_sea
1087      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1088    
1089    checkpoint50i_post
1090    o Preparing next differentiable checkpoint and sync
1091      of MAIN vs. ecco-branch
1092      - 1st step: this one is differentiable
1093      - 2nd step: next(! not this) checkpoint will have updated packages
1094                  from ecco-branch)
1095    
1096    checkpoint50h_post
1097    o new package "land": provide surface BC for AIM.
1098    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1099    o AIM: use true log-P extrapolation for near surface temp (= as in
1100        F.Molteni paper) ; update aim.5l_cs output.
1101    o New variable in PARM03 for more flexible pickups
1102    o somewhat cleaned package initialisation sequence for
1103      ctrl/ cost/ ecco/ in packages_... routines
1104    
1105    checkpoint50g_post
1106    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1107      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1108      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1109        made the default because of faster convergence than ADI
1110    
1111    checkpoint50f_post
1112    o exf totally restructured
1113      - replaced all exf_set_ routines by one generic exf_set_gen.F
1114        and made sure it's still differentiable
1115      - split exf_getffields.F into new exf_bulkformulae.F
1116      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1117      - updated adjoint/makefile and relevant verif. accordingly
1118    
1119    checkpoint50f_pre
1120     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1121          + change Evap over land. (update aim.5l_cs output)
1122     o added missing .cvsignores and made uniform across expts
1123     o changed configuration of tidal_basin_2d expt
1124     o added pkg/debug functions for tracing code in fatal crashes
1125     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1126     o new fn in pkg/monitor to stop model if solution grows too big
1127     o removed lots of single quotes from comments
1128    
1129    checkpoint50e_post
1130    o make KPP work with PTRACERS
1131     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1132       nearly a copy of kpp_transport_s
1133     - there is no analogue to SurfaceTendencyS, so I have to use
1134       gPtr(of the surface layer) instead
1135    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1136    checkpoint50e_pre
1137    
1138    checkpoint50d_post
1139    o change kpp output from multiple-record state files to single-record state
1140      files analogous to write_state.F
1141    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1142      analogous to the cg2d-related output.
1143    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1144      so that writing to internal file fn (with length 512) fails.
1145    checkpoint50d_pre
1146    
1147    checkpoint50c_post
1148    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1149    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1150    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1151    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1152    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1153    
1154    checkpoint50c_pre
1155    Merging from release1_p13:
1156    o bug fix for pkg/seaice dynamic solver
1157    o Added SEAICE_initialHEFF to pkg/seaice
1158    
1159    checkpoint50b_post
1160    o store u*,v* in gU,V instead of in guNm1,gvNm1
1161    o in order to put the momForcing out of the Adams-Bashforth:
1162      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1163      to timestep.F
1164    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1165    o re-generate output for highly sensitive test-exp:
1166       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1167    
1168    checkpoint50b_pre
1169    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1170    o corrected CPP option mismatch in exf_Bulk... functions for case
1171      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1172    
1173    checkpoint50a_post
1174    o Bug fix for merging between c50 and KPP.
1175      ikey was passed from thermodynamics to kpp_calc via
1176      common block rather than being recomputed in kpp_calc,
1177      in contradiction with new key itdkey.
1178      New key ikppkey created, and tamc.h headers updated.
1179    
1180    checkpoint50
1181    - 2nd step of merge with ecco-branch:
1182      merge changes in ecco-branch back into main trunk
1183    - bug fix in find_alpha
1184    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1185    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1186    - merged some sliced AD support routines
1187    
1188    checkpoint49
1189    merged from ecco-branch:
1190    o exf:
1191      - Enable initialisation of forcing fields to constant
1192        (runtime) values.
1193      - in exf_getffields.F
1194        Reduce i-/j-loop to interior domain, discarding overlaps.
1195        That also fixes wrong TAF-key computations for key_1, key_2
1196        with bulf formulae.
1197      - exf_init.F modify #ifdef for exf_init_evap
1198      - exf_getffieldrec.F, ctrl_getrec.F
1199        The following INT-usages are not safe:
1200          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1201          fldcount = int(fldsecs/fldperiod) + 1
1202        and were modified.
1203    o autodiff: checkpoint_lev...
1204      - updated storing for bulk formulae (some arrays were missing)
1205      - added state for seaice package
1206      - synchronized with main branch
1207    o DIVA:
1208      Modif.s in
1209      - the_main_loop.F
1210      - the_model_main.F
1211      and added cost_final_restore.F cost_final_store.F
1212      o With these changes, it is possible to fully separate
1213        the first forward run to compute the cost function (mdthe_main_loop)
1214        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1215        into separate model executions.
1216        This enables better tuning of DIVA to given queue sizes.
1217      o Loss of cost function value in consecutive DIVA runs is
1218        fixed by storing to 'costfinal' file.
1219      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1220        beginning/end of adjoint integration is accounted for.
1221      The current changes apply to TAF-1.4.26.
1222      TAF has one remaining bug, requiring one manual change
1223      (see MITgcm manual).
1224    o cal: synchronized between MAIN and ecco-branch
1225    
1226    checkpoint48i_post
1227    o Changes to restore differentiability of code w.r.t. previous tag
1228      (mostly adding new routines to make list and replacing
1229      pressure by totPhiHyd).
1230    o Updated and merged grdchk package
1231      - has both ADM and TLM checks
1232      - works for single- and multi-proc.
1233      - output cleaned
1234      - worked successfully for parallel DIVA
1235    o genmake:
1236      - Adding -platform=SP4
1237      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1238    o Modif. for DIVA:
1239      ctrl_unpack should not be called in intermediate DIVA interval.
1240      (similar thing would apply for active files such as
1241      tbar, sbar, psbar, which should not be reinitialised;
1242      only relevant for ecco-branch)
1243    
1244    checkpoint48h_post
1245    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1246    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1247    o Added SEAICE_initialHEFF to pkg/seaice
1248    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1249    
1250    checkpoint48g_post
1251    --- EOS:
1252    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1253      store total Potential in totPhyHyd for diagnostics & EOS.
1254    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1255    --- Pressure/geopotential gradient:
1256    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1257    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1258      ( changes results of global_ocean_pressure )
1259    o NLFS + z-coord.: add eta*Rho' contribution.
1260    o accurate phiHyd when using interface-W at the middle between 2 centers
1261     ( changes results of ideal_2D_oce )
1262    o includes r* 2nd term in potential gradient.
1263    
1264    checkpoint48f_post
1265    Merging from release1_p12:
1266    o Modifications for using pkg/exf with pkg/seaice
1267      - improved description of the various forcing configurations
1268      - added basic radiation bulk formulae to pkg/exf
1269      - units/sign fix for evap computation in exf_getffields.F
1270      - updated verification/global_with_exf/results/output.txt
1271    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1272      (SBO) core products, including oceanic mass, center-of-mass,
1273      angular, and bottom pressure (see pkg/sbo/README.sbo).
1274    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1275      to avoid negative values in shallow regions.
1276      - updated verification/natl_box/results/output.txt
1277      - updated verification/lab_sea/results/output.txt
1278    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1279    o Added useSingleCpuIO option (see PARAMS.h).
1280    o Updated useSingleCpuIO option in mdsio_writefield.F to
1281      work with multi-field files, e.g., for single-file pickup.
1282    o pkg/seaice:
1283      - bug fix in growth.F: QNET for no shortwave case
1284      - added HeffFile for specifying initial sea-ice thickness
1285      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1286    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1287      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1288    o pkg/seaice:
1289      - adjoint-friendly modifications
1290      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1291    
1292    checkpoint48e_post
1293    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1294    o dynamics: change definition of computational domain & adapt mom_fluxform
1295      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1296    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1297        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1298        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1299        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1300        inverted_barometer solid-body.cs-32x32x1
1301      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1302    
1303    checkpoint48d_post
1304    o in preparation for r*:
1305     a) use pre-computed gradient of hydrostatic potential:
1306        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1307     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1308        => affects results of glob_oce_pressure (different truncation error)  
1309      update output.txt of ideal_2D_oce & global_ocean_pressure
1310    
1311    checkpoint48d_pre
1312    o in preparation for r*:
1313      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1314      pass the 2 comp. of the grad. as arguments to momentum S/R.
1315      but for the moment, only used if it does not change the results.
1316    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1317    
1318    checkpoint48c_post
1319    Modifications in treatment of initial flux forcing controls
1320    to avoid extra storing of flux fields.
1321    
1322    checkpoint48c_pre
1323    o Added tidal_basin_2d experiment (currently 1D!)
1324    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1325    
1326    checkpoint48b_post
1327    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1328     (modification to pressure gradient not yet implemented)
1329    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1330      (for U & V) that are used for vertical advection of momentum.
1331    
1332    checkpoint48a_post
1333    o In preparation for r*, use temp. array to compute vertical transport
1334       in flux-form momentum pkg. => change results of few test-exp.
1335      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1336                        lab_sea, natl_box & plume_on_slope
1337    
1338    checkpoint48
1339    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1340    
1341    checkpoint47j_post
1342    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1343    o moved adexch from forward_step to addummy_in_stepping
1344    o added exch in ctrl_map_...
1345    o aveFreq.=0. at end of cost_final to avoid overwrite in
1346      reverse checkpointing loop
1347    o Yet more changes in gmredi:
1348      * adgmredi_calc_tensor
1349        avoiding all recomputation of gmredi_slope_limit
1350      * adgmredi_x/y/rtransport
1351        added flag for excessive storing to avoid recomp. of
1352        u/v/rtans, dTdx/y/z
1353        -> this is not really necessary and very memory-consuming
1354      * adgmredi_slope_psi:
1355        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1356      * gmredi_slope_limit
1357        re-activated full calculation of taperfct for case 'ac02'
1358    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1359    
1360    checkpoint47i_post
1361    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1362    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1363      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1364    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1365    o gmredi: fix few bugs.
1366    
1367    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1368    This will be a good checkpoint to plug into the ecco-branch.
1369    o few modif.'s to get latest version adjointed
1370      (mainly kick out code in ini_linear_phisurf)
1371    o modif's to run adjoint with exactConserv
1372    o case GM_BOLUS_ADVEC should be cleaned
1373      S/R gmredi_slope_psi should be cleaned
1374    o verification/carbon now has exactConserv=.TRUE.
1375    
1376    checkpoint47g_post
1377    o time-average AIM output: becomes independent from statvars time-average
1378      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1379    o After TAF bug fix:
1380      Tested adjoint of gmredi package.
1381      Tests were done with checkpoint47 rather than with latest
1382      checkpoint47f_post since the latter is broken for the adjoint
1383      verification/carbon/ contains both ADM and TLM gradient checks.
1384    Here they are, before they get changed/lost/stolen.
1385    Mostly modif.'s to fix numerical sensitivities.
1386    Gradient checks OK for
1387    - GM_taper_scheme:
1388      * clipping
1389      * ac02
1390      * linear
1391      * glw91
1392      * dm95
1393      * ldd97
1394    - GMREDI_OPTIONS:
1395      * GM_VISBECK_VARIABLE_K
1396      * GM_NON_UNITY_DIAGONAL
1397      * GM_EXTRA_DIAGONAL
1398      * GM_BOLUS_ADVEC
1399    in conjunction with data.gmredi parameters to be checked in
1400    in a few minutes under verification/carbon/code/
1401    
1402    checkpoint47f_post
1403    Merging from release1_p10:
1404    o modifications for using pkg/exf with pkg/seaice
1405      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1406        and SEAICE_EXTERNAL_FLUXES
1407      - pkg/exf CPP options EXF_READ_EVAP and
1408        EXF_NO_BULK_COMPUTATIONS
1409      - usage examples are Experiments 8 and 9 in
1410        verification/lab_sea/README
1411      - verification/lab_sea default experiment now uses
1412        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1413    
1414    checkpoint47e_post
1415    o created a tag prior to creating a branch
1416    
1417    checkpoint47d_post
1418    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1419      at the bottom boundary had an erroneous half slip boundary condition
1420    o added bottom drag and no slip boundary condition capabilities to
1421      oceanic pressure coordinates code
1422    o added new verification experiment global_ocean_pressure, this experiment is
1423      also described in the tutorial section of the manual
1424    checkpoint47d_pre
1425    
1426    checkpoint47c_post
1427    o Added a verification experiment for a global cubed-sphere ocean run
1428      -  verification/global_ocean.cubed32x32x30
1429      -  uses pkg/therm_seaice and pkg/bulk_forcing
1430    
1431    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1432    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1433      when using P-coordinate; only implemented for atmospheric config.
1434    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1435      NOTES: requires option NONLIN_FRSURF to be "#define".
1436    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1437    
1438    checkpoint47b_post
1439    Merging from release1_p9:
1440    o pkg/seaice
1441      - removed GOTO's and added taf directives
1442      - double precision constants to reduce the g77 (Linux)
1443        to F77 (SGI) differences reported in release1_p8
1444    o tools/genmake
1445      - added SGI options
1446    o verification/testscript
1447      - updated to that of checkpoint47a_post
1448    o verification/global_ocean.90x40x15/input/eedata
1449      - modified for SGI f77 compatibility
1450    o verification/lab_sea
1451      - added description of sea-ice model
1452      - added missing matlab routines
1453      - added test of thermodynamics parallelization
1454    
1455    checkpoint47a_post
1456    o new pkg: aim_v23
1457     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1458       for now, keep the same surface forcing as before.
1459     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1460     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1461     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1462    o add diagnostic of surface correction term in monitor output
1463    
1464    o bulk_force and therm_seaice
1465    - Two packages:  bulk_force (Bulk forcing)
1466      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1467    - Earlier integration from Stephaine Dutkiewicz
1468      and Patrick Heimbach.
1469    - Two ifdef statements for compile time,
1470       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1471    
1472    checkpoint47
1473    differentiable version of checkpoint46n_post
1474    o bug fix in quasihydrostaticterms
1475    o * "clean" adjoint code (in terms of extensive recomputations)
1476        can now be obtained for all GMREDI options (i.e. for
1477        - GM_VISBECK_VARIABLE_K
1478        - GM_NON_UNITY_DIAGONAL
1479        - GM_EXTRA_DIAGONAL
1480        - GM_BOLUS_ADVEC )
1481      * However, wrong gradient check problem remains unsolved.
1482      * New CPP options have been introduced for different
1483        tapering schemes
1484    o external_fields_load now part of differentiation list
1485    o pressure needs multiple storing;
1486      would be nice to have store_pressure at beginning or
1487      end of forward_step, e.g. by having phiHyd global (5-dim.)
1488      (NB: pressure is needed for certain cases in find_rho,
1489      which is also invoked through convective_adjustment).
1490    o recomputations in find_rho for cases
1491     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1492    o #define ATMOSPHERIC_LOADING should be differentiable
1493    o ini_forcing shifted to begining of initialise_varia
1494    o Incorporating QNVS line search routines into MITgcm
1495      (this is separate code, and therefore not under pkg)
1496      lsopt/, optim/
1497    o Updated verification/carbon/
1498      - #define GM_VISBECK_VARIABLE_K
1499      - GM_taper_scheme    = 'ldd97'    
1500    
1501    checkpoint46n_post
1502    Merging from release1_p8:
1503    o verification/natl_box:
1504      updating new external_fields_load routine
1505    o New package: pkg/seaice
1506      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1507      The sea-ice code is based on Hibler (1979-1980).
1508      Two sea-ice dynamic solvers, ADI and LSR, are included.
1509      In addition to computing prognostic sea-ice variables and diagnosing
1510      the forcing/external data fields that drive the ocean model,
1511      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1512      The implied surface heat flux is then stored in variable
1513      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1514      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1515      non-local transport term.  Because this call precedes model
1516      thermodynamics, temperature under sea-ice may not be "exactly" at
1517      the freezing point by the time theta is dumped or time-averaged.
1518      N.B.: fairly large differences in accuracy occur across
1519            different platforms/compilers; comparison between
1520            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1521            generated output gives:
1522       T           S           U           V
1523      C D M    c        m  s        m  s        m  s        m  s
1524      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1525      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1526      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1527    
1528      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1529    o GAD:
1530      - generated new common blocks to account for call of
1531        same gad routines with differing traceridentities
1532        (needed to modify tracerIdentity indices in GAD.h)
1533      - generated separate common blocks for case useCubedSphereExchange
1534        (Department of Futurology)
1535      - parameter lists to gmredi_?transport: added tracerIdentity
1536      - added new key indices to tamc.h
1537    o external_fields_load:
1538      - added this routine to TAF list
1539      - needed to make some common blocks global and additional storing
1540        along the same lines as exf package (checkpoint_lev?_directives.h)
1541    o exf:
1542      updated external forcing package
1543      - bug fixes carried over from ecco-branch
1544        (missing OBCS_OPTIONS.h in two routines)
1545      - enable easy to use "no forcing".
1546      - added exf I/O for atmospheric loading
1547      - added exf I/O for runoff data
1548      - transfered scaling between exf <-> MITgcm to exf namelist
1549    o Adding new verification experiment global_with_exf.
1550      This verification experiment is almost identical to the
1551      global_ocean.90x40x15 experiment, except that it uses
1552      the exf (and cal) package instead of the
1553      external_fields_load routine (cf README file).
1554    
1555    checkpoint46m_post
1556    o modified testscript to return -- when there are no lines of "%MON" output
1557    o added new flag "quasiHydrostatic" for QH mode
1558      and new routine quasihydrostaticterms()
1559    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1560      New routine: mom_u_coriolis_nh()
1561    o fixed sign of non-hydrostatic metric terms in u and v equations.
1562      Depend on correct sign of gravitySign.
1563    o added work.pc* to .cvsignore in aim directories using ifc
1564    o introduced flag for controllin non-hydrostatic metric terms
1565    o removed gravitySign from PARM04
1566    o switched to g77/ifc from pgf77 in aim experiments
1567    
1568    checkpoint46l_post
1569    o made convective adjustment work with pressure coordinates:
1570     - changed the direction of k-loop in convective_adjustment.F for the
1571       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1572     - adjusted the reference pressure k-index in convective_adjustment.F
1573     - adjusted the convection condition in convect.F (in analogy to
1574       calc_ivdc.F)
1575     - convective_adjustment no longer computes anything on the halos
1576     - removed the warnings about negative salinity from find_rho.F and
1577       find_alpha.F; instead the new routine look_for_neg_salinity, called
1578       at the beginning of find_rho, find_alpha, and find_beta, does a
1579       check of the entire slice, if CPP-option
1580       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1581    checkpoint46l_pre
1582    
1583    checkpoint46k_post
1584    o fixed the verification/global_ocean.90x40x15 experiment:
1585     - new bathymetry (the world according to A., JMC, and M.)
1586     - new initial fields and forcing fields (*.bin files)
1587     - new POLY3.COEFFS (for the next release one should switch to a full
1588       equation of state: JMD95P or MDJWF)
1589     - fixed several errors and redundancies in the data file
1590     - experiment uses looped cells
1591     - added matlab directory with diagnostic scripts for plotting of output
1592    
1593    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1594     - read AIM physics parameters from a file (data.aimphys)
1595     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1596    
1597    checkpoint46j_post
1598    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1599    o move wVel computation at the end of the time step, in S/R integr_continuity
1600    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1601    o update timeave pkg for wVel diagnostic.
1602    checkpoint46j_pre
1603    
1604    checkpoint46i_post
1605    o Clean up AIM package (and keep the results unchanged):
1606      include CPP_OPTION and use IMPLICT NONE in all routines ;
1607      declare all the variables _RL ; use _d 0 for all numerical constants.
1608      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1609    
1610    checkpoint46h_post
1611    o cleaned up the use of rhoNil and rhoConst.
1612      - rhoNil should only appear in the LINEAR equation of state, everywhere
1613        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1614        and the dynamical equations are all divided by rhoConst
1615    o introduced new parameter rhoConstFresh, a reference density of fresh
1616      water, to remove the fresh water flux's dependence on rhoNil. The default
1617      value is 999.8 kg/m^3
1618    o cleanup up external_forcing.F and external_forcing_surf.F
1619      - can now be used by both OCEANIC and OCEANICP
1620    checkpoint46h_pre
1621    
1622     Added code to convert surface volume flux (fresh water) into
1623     a mass flux when using P coordinates in the ocean (OCEANICP).
1624     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1625    
1626    checkpoint46g_post
1627    o Include a new diagnostic variable phiHydLow for the ocean model
1628      - in z-coordinates, it is the bottom pressure anomaly
1629      - in p-coordinates, it is the sea surface elevation
1630      - in both cases, these variable have global drift, reflecting the mass
1631        drift in z-coordinates and the volume drift in p-coordinates
1632      - included time averaging for phiHydLow, be aware of the drift!
1633    o depth-dependent computation of Bo_surf for pressure coordinates
1634      in the ocean (buoyancyRelation='OCEANICP')
1635      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1636        Theta, Salinity, and Pressure in the parameter list. This routine is
1637        presently contained in find_rho.F. This routine does not give the
1638        correct density for 'POLY3', which would be a z-dependent reference
1639        density.
1640    o cleaned up find_rho
1641      - removed obsolete 'eqn' from the parameter list.
1642    o added two new verification experiments: gop and goz
1643      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1644    checkpoint46g_pre
1645    
1646    checkpoint46f_post
1647    o Enable tangent linear (forward mode) gradient checks:
1648      - extended active file handling to g_... files
1649      - added TANGENT_SIMULATION to theSimulationMode
1650      - extended grdchk package accordingly
1651    o added tangent linear setup in verification/carbon/code_ftl
1652    o added adjoint setup in verification/front_relax/code_ad
1653    
1654    checkpoint46e_post
1655    o Added new equation of state -> MDJWF
1656      - EOS of McDougall et al., 2002, JAOT, submitted
1657      - caveat: the equation of state is only valid for a smaller (more
1658        realistic?) range of values than JMD95P/Z and UNESCO
1659      - added masks to the calculation of pressure in store_pressure
1660      - added more check values for density in check_eos (ini_eos.F), some of
1661        the old check values are out of the range of the MDJWF-eos, so don't
1662        expect perfect matches for those
1663    checkpoint46e_pre
1664    
1665    checkpoint46d_post
1666    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1667      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1668      case of pressure coordinates. eosType='JMD95Z' in
1669      combination with buoyancyRelation='OCEANICP' now causes an error.
1670    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1671      in find_alpha/beta.
1672    checkpoint46d_pre
1673    
1674    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1675      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1676    
1677    checkpoint46c_post
1678    o Changes necessary for ocean in p-coordinates
1679     -  Added new buoyancy relation = 'OCEANICP'
1680     -  Added new parameters = gravitySign (this used to be contained inside
1681        the factor dRdZ which I added when we first switched to R coordinates).
1682     X GM/Redi is not compatible (yet)
1683     X bottom drag and no-slip need to be debugged.
1684    checkpoint46c_pre
1685    
1686    checkpoint46b_post
1687    o Added new equation of state -> JMD95Z and JMD95P
1688      - EOS of Jackett and McDougall, 1995, JAOT
1689      - moved all EOS parameters into EOS.h
1690      - new routines ini_eos.F, store_pressure.F
1691    o Added UNESCO EOS, but not recommended because it requires
1692      in-situ temperature (see JMD95)
1693    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1694      unesco.f to be used with POLY3
1695    checkpoint46b_pre
1696    
1697    checkpoint46a_post
1698    o Added (atmospheric) pressure loading
1699      - new field in FFIELDS.h, etc...
1700      - new cpp flag ATMOSPHERIC_LOADING
1701    o Changed hFacC to _hFacC in calc_phi_hyd.F
1702    o Added SHORTWAVE_HEATING to some files for consistency
1703    checkpoint46a_pre
1704    
1705    checkpoint46
1706    further merges from release1_p5
1707    o new ctrl package
1708      - adopted from ECCO environment to enable optimization
1709      - added Eliassen Palm fluxes to controls
1710    o added Eliassen Palm flux controls to gradient check package
1711    o cost package
1712      - Compatible with new ctrl package
1713      - added Eliassen Palm cost hooks
1714      - modif's of existing cost functions
1715    o Adjoint-related bug fixes in kpp:
1716      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1717      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1718    o autodiff package
1719      - flow directives:
1720        + new for S/R do_the_model_io
1721        + enhanced for S/R checkpoint
1722        + new gmredi.flow
1723      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1724        disable adcommon.h/g_common.h by default.
1725      - fixed problem for adjoint of global_max
1726    o modified verification/carbon/
1727    o New setup for adjoint of global_ocean
1728    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1729    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1730    o incorporated hooks for sponge layer code (external_forcing.F)
1731    
1732    checkpoint45d_post
1733    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1734    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1735      (affects plume_on_slope "cg2d" output)
1736    o add new parameter deltaTfreesurf for free-surface time stepping
1737    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1738    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1739    o change phiMin in exp1 (to agree with documentation)
1740    o add new flags:
1741     - T,S forcing inside/outside Adams-Bashforth
1742     - turn off temp,salt advection and/or forcing
1743     - for each tracer, define internal flag for multiDimAdvection & A-B
1744    o monitor: change definition of KE to check conservation of Energy
1745    
1746    checkpoint45c_post
1747    o Removed f90 comments ("!")
1748    o Modified initialisations to enable exf package for MITgcm
1749      (without invoking ECCO_PACKAGE).
1750    o modifications to gradient check package (Martin Losch)
1751      - enable centered differences
1752      - modified format of standard output
1753    
1754    checkpoint45b_post
1755    o cleaned exchange calls in cg2d
1756    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1757    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1758      to configure barotropic setup (Martin Losch)
1759    o moved some initialisations within bi,bj loop in dynamics
1760      (TAF flow dependency)
1761    o in initialise_varia, moved call packages_init_variables
1762      before convective_adjustment_init
1763      (corresponding adjustment of TAF tape initialisation).
1764    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1765    
1766    checkpoint45a_post
1767    o compute Rho over the whole domain (extend iMin,jMin indices)
1768    o specific exchange for X-slice domain (case Ny=1)
1769    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1770    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1771    
1772    checkpoint44h_post = checkpoint45
1773    o Fix to restore differentiability:
1774      place at which packages_init_variables is called in
1775      initialise_varia is crucial for reverse control flow.
1776    o modifications in GMRedi to enable stable adjoint
1777      (corresponding modif's in thermodynamics, dynamics)
1778    o added missing hook for sponge layer code in external_forcing
1779    o modified test cost functions
1780    o storing in gad_advection (plus removal of write(0,*)!
1781    o missing headers TR1.h added in convective_adjustment routines
1782    o errorMessageUnit set non-equal zero in eeboot
1783      (conflict on some platforms, e.g. IBM SP3)
1784    o modified carbon verif.
1785    
1786    checkpoint44h_pre
1787    o vertical grid option: allow to put the Interface at the middle between
1788      2 cell-centers ; replace delZ in pkg/kpp by drF.
1789    o GM Advective form: Tracers are advected using the residual transport (=
1790      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1791    
1792    checkpoint44g_post
1793    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1794      results) ; ifdef missing in thermodynamics.F
1795    
1796    checkpoint44f_pre,checkpoint44f_post
1797    o added PTRACERS package
1798      This allows an arbitrary number of passive tracers to be integrated
1799      forward simultaneously with the dynamicaly model.
1800      + Implemented so far:
1801        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1802        - I/O and checkpointing
1803        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1804      + Not implemented so far:
1805        - KPP
1806        - OBCS
1807      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1808        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1809        line in data.pkg.
1810      + This package is disabled by default since it increases storage.
1811    
1812    
1813    o testscript: added -cleanup option
1814    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1815                 b) enable to filter 2D fields.
1816    
1817    checkpoint44e_pre,post
1818    o re-wrote convective adjustment to use pre-calculated weights
1819      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1820      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1821      Original calls to convect() still in place.
1822    
1823    chkpt44d_pre,post
1824    o added missing EXCLUDE_MONITOR flags
1825    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1826      (incompatible typ in MIN/MAX expressions caused problems
1827      on IBM SP3)
1828    o in genmake added variable MAKEDEPEND
1829      plus resetting for case SunOS
1830    o added timer_stats.c routine for IBM SP3
1831    o removed variables in dynamics
1832    !!! I forgot to create tag chkpt44d_pre !!!
1833    !!! But chkpt44d_pre = chkpt44c_post    !!!
1834    
1835    o real fresh water flux implemented with non-linear free-surface.
1836    
1837    chkpt44c_pre,post
1838    o few fix (mask in shap_s2, EmPmR in external_field_load,
1839      USE_NATURAL_BCS in solve_for_P);
1840    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1841    
1842    checkpoint44b_pre/_post
1843    o merge of relevant stuff from the ecco-branch:
1844      - genmake: removed $S64 overwrite for case SunOS
1845      - pkg/exf: update and corrections for field swapping and obcs
1846      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1847                  harmonized between ECCO and MITgcm
1848      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1849                      updated checkpointing_lev... lists for obcs
1850      - model/src: minor changes in forward_step, plot_field
1851                   added directive for divided adjoint in the_main_loop
1852      - pkg/mdsio: added mdsio_gl_slice
1853    
1854    o check parameters & config (chkpt44a_pre,post)
1855    o OBC and NonLin_FrSurf.
1856    
1857    checkpoint44
1858    o fix bug in mom_vi_del2uv
1859    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1860    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1861    o update AIM experiments (NCEP input files)
1862    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1863    o added some stuff for AD
1864    
1865    checkpoint43
1866    o added two new advection tests
1867    o added global 4x4 degree ocean test
1868    o added test of H&S94 with free surface on cube
1869    o some final mods for gradient check, adjoint,...
1870    
1871    checkpoint42
1872      Fixed AD-related problems:
1873    o Store directives up-to-date with re-arranged Adams-Bashforth
1874      (mainly thermodynamics.F)
1875    o New store directives for multi-dim. advection schemes
1876      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1877      * new common block and key passkey
1878      (mainly gad_advection.F)
1879    o Modified store directives for split of dynamics/thermodynamics
1880      for the case ALLOW_KPP
1881    o Cleaned argument list for timestep_tracer.F
1882    
1883    checkpoint41
1884    o re-formatted/added comments in prologues of key subroutines
1885      to work with protex
1886    
1887    checkpoint40
1888    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1889    o added FLT (floats) package from Arne along with demo. experiment
1890    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1891      implementation of forward-in-time forcing terms
1892    o more mods for non-linear free-surface including new variable
1893    o modified multi-dim method to work on cube
1894    o bug fix in KPP (from DM)
1895    
1896    checkpoint40pre9
1897    o added DST advection schemes
1898    o fix MPI bug on SGI's
1899    o modifications for non-linear free-surface
1900    o fixed conditionals for fixed flow/passive tracer only mode
1901    o added tension/strain form of stress tensor
1902    o changes to commenting of arguments for TAF/TAMC
1903    o added/updated many matlab scripts
1904    o added multi-dimensional advection method for tracers
1905      
1906    checkpoint40pre8
1907    o new package rw/
1908      Added method for dumping intermediate local arrays:
1909      mdsio_writetile - same as mdsio_writefield except works from inside
1910                        bi,bj loop
1911      mdsio_writelocal - same as mdsio_writetile except works for local
1912                         arrays
1913      write_local_r? - higher-level wrapper for mdsio_writelocal
1914      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1915      Example given at end of mom_vecinv.F that dumps some local arrays.
1916    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1917      control flux-form versus vector invariant code.
1918      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1919      or genmake -DISABLE ...
1920    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1921      (additional storing is now needed for case vecinv;
1922      currently nothing implemented to switch this storing off
1923      in case fluxform is used since no CPP flag available).
1924    
1925    checkpoint40pre7
1926    o bug fix in dynamics.F
1927      calc_viscosity called before k=1,Nr loop.
1928    o added some #ifdef's ALLOW_PASSIVE_TRACER
1929    o cleaned initialisations in ctrl_map_ini
1930      related to TAF
1931    
1932    checkpoint40pre6
1933    o split dynamics into thermodynamics & dynamics
1934    o corresponding split of calc_diffusivity into
1935      calc_diffusivity, calc_viscosity
1936      (kpp_calc_diff, kpp_calc_visc).
1937    o Added diffkr, kapgm to control variables
1938    o bug fix in gmredi_slope_limit for ldd97
1939    
1940    checkpoint40pre5
1941    o proper initialization of Adams-Bashforth time stepping
1942      + uses forward step for very first step of model (iter=0)
1943    o re-generated *all* output since almost all output is modified by this
1944      change (sorry but we've been putting this one off for about 2 years)
1945      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1946        *not* regenerated since they are already out of date and I don't
1947        want to create the impression that they are suddenly working.
1948    o removed KAP stuff for DEC's
1949    o modified/added many .cvsignore files in */code and */input
1950    o added new expt "solid-body.cs-32x32x1"
1951      + this uses an alternative form of ini_curvilinear_grid.F which
1952        is not necessarily any better than the current one...
1953    
1954    checkpoint40pre4
1955    o added re-initialisations of utrans,vtrans,rtrans in
1956      calc_common_factors which are crucial for TAF.
1957    o extended iMin,jMin range for calc_common_factors,
1958      calc_diffusivity
1959    o added option ALLOW_PASSIVE_TRACER
1960    o a few minor updates and fixes
1961    
1962    checkpoint40pre3
1963    o created calc_gtr1.F for gad package
1964    o split the_main_loop and re-introduced forward_step
1965    o some recomputations of nIter0 for TAMC
1966    
1967    checkpoint40pre2
1968    o Updated to latest branch of AJA, JMC
1969    o Added gradient check package
1970    o Added routines for passive tracer handling
1971    o Added carbon sequestration sensitivity experiment
1972    
1973    checkpoint39
1974     o Modifications and fixes to support TAMC
1975       (mainly missing or wrong directives)
1976     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1977       in addummy_in_stepping
1978     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1979     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1980     o Included following packages:
1981       cal: calendar
1982       exf: external forcing
1983       ecco: essential routines to control use of cal, exf
1984             (NB: this is not the full ECCO environment)
1985     o disabled some packages by default in genmake
1986    
1987    checkpoint38
1988     o see notes_c37_adj.txt
1989     o corrected wrong layer index in external_forcing_t
1990     o replaced the_main_loop/forward_step by the_main_loop
1991     o removed forceoutput from write_state
1992       (replaced criteria for initial/final state)
1993     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1994    
1995    checkpoint37
1996     o mdsio.F routine split and packaged in pkg/mdsio
1997       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1998        used unless genmake -disable=mdsio)
1999     o allow a more precise surface-geopotential gradient for the atmosphere
2000       taking into account the change in space of Alpha (=1/rho) at the surface.
2001     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2002       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2003     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2004       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2005       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2006     o Time-Average diagnostics defined as a pseudo package "timeave".
2007     o pickup files : old pickup (before c35) did not work with new code (c35
2008       and after) unless activating 2 commented lines in initialise-varia.
2009     o Non-Hydrostatic pickup file Pb fixed.
2010     o bug with Rigid-lid version (since c35) fixed.  
2011    
2012    checkpoint36
2013     o implement Crank-Nickelson barotropic time-stepping
2014     o recover Time-Average diagnostics
2015     o fix Pb in checkpoint (PR#19)
2016     o AIM become a standard package ; clean unused CPP_kees
2017    
2018    checkpoint35
2019     o subtantial rewrite of dynamics.f
2020     o allows staggered time-stepping
2021     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2022     o added bottom drag (linear + quadratic)
2023    
2024    checkpoint34
2025     o Modified exchange routines for correct reverse simulation.
2026     o Added verification output to comply with bug fix in impldiff.F
2027       as of c33 (exp2, natl_box).
2028     o Corrected store directives in dynamics.F
2029     o Corrected array boundaries in impldiff.F
2030     o Corrected array dimensions in gmredi.
2031       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2032     o Added routine GLOBAL_SUM_INT to global_sum.F
2033     o Added mdsio_gl.F for ECCO purposes.
2034    
2035  checkpoint33  checkpoint33
2036   o Fixed bug in lower BC in impldiff.F   o Fixed bug in lower BC in impldiff.F
2037   o Fixed confusion about units of forcing arrays in FFIELDS.h   o Fixed confusion about units of forcing arrays in FFIELDS.h

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