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revision 1.14 by cnh, Tue Sep 29 18:57:53 1998 UTC revision 1.435 by jmc, Wed Jan 19 02:21:28 2005 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
7      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
8    o add saltFlux(+File) forcing capability with periodicExternalForcing
9    o allow to use pkg diagnostics for GM-Redi & ThSIce output
10    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
11    o improvements for the MNC output from DIAGNOSTICS:
12      - correct handling of the unlimitied dimension
13      - all dims now have associated coordinate variables
14      - variables located at U, V, and Corner ("Z") points are now written
15        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
16        *all* data points are output
17    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
18    o added pkg/seaice/seaice_monitor.F
19    o mdsio_readfield.F can now read files visible only to master MPI process.
20    o pkg/seaice: some test code for ice-modified ocean stress
21    o exf_getffields interpolation defaults to bilinear for all scalar forcing
22      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
23      spurious negative numbers for precipitation and humidity.  Will cause
24      some small numerical differences for integrations using pkg/exf/exf_interp.F.
25    o pkg/ctrl/
26      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
27        May be enabled via doPackDiag
28      *  introduce z-scaling of
29         + gradient (doZscalePack) and
30         + control (doZscaleUnpack)
31    o pkg/mdsio/
32      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
33      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
34    
35    checkpoint57b_post
36    o simplify options in diagnostics_fill arguments (remove weird combinations)
37    o fix MNC coordinate variables so that they now contain per-face index
38      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
39      general, EXCH2 grids are only aligned to a "local" coordinate system
40    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
41    o Implement instantaneous output within pkg diagnostics:
42      setting a negative frequency in data.diagnostics produces
43     "snap-shot" output (as opposed to time-average if freq > 0)
44    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
45      NOTE: change ptracer diagnostics name: use 2 characters to work with
46            more than 9 tracers. Add also diagnostics of advect & diffus flux.
47    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
48      becomes the coordinate variable for the 'T' dimension
49    o add CF-style coordinate variables to MNC
50      - just a first cut:  numbers are meaningless on the cubesphere and
51        missing along the T axis but otherwise it works!
52    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
53    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
54    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
55      this is based directly on what the model compute, so that the content of
56      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
57    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
58    o clean up build options files for SunOS, in particular
59      - remove -traditional from xmakedepend
60      - change -xarch=v9 to -xarch=native for f77
61      - restore use of make (not gmake)
62      - add CC=gcc if using g77
63    o changes per discussion of AM, JMC, & EH3 today:
64      - move redundant "grid" variables out of "state" -- in preparation of
65        creating proper CF-style coordinate variables and in recognition
66        that any/all grid variables can be easily copied (eg. w/NCO) from
67        the grid files into any of the other NetCDF files
68      - *always* output grid variables with MDSIO (this will eventually be
69        changed)
70      - output MNC grid file if useMNC is true
71    o every instance of _END_MASTER() has been found and replaced with
72      _END_MASTER( myThid ) in order to satisfy certain picky Sun
73      preprocessors
74    o re-arrange diagnostics pkg initialisation:
75     - allow each package to extend the available diagnostics list
76     - add some checking and fix small problems (multi-threaded, ...)
77     - new S/R diagnostics_fill (replace fill_diagnostics):
78       look through the short list of active diag. (instead of the long list)
79       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
80    
81    checkpoint57a_post
82    o this set of changes restores TAMC compatibility
83      tested for global_ocean.90x40x15 adjoint on trough
84      (what a pain)
85    
86    checkpoint57a_pre
87    o some modifs in tools/build_options for sunos
88    o call ctrl_pack for ctrl at end for optimcycle=0
89    
90    checkpoint57
91    o add horizontal bi-harmonic viscosity for vertical velocity
92      - new parameter viscA4W (defaults to viscA4)
93      - affects only non-hydrostatic code
94      - to be done: no-slip lateral boundary conditions
95    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
96    o implement Implicit Vertical advection for pTracers
97    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
98      (implemented also for implicit vertical diffusion & advection)
99    o OBCS: extend application of tracer open boundary conditions
100      to a strip beyond the boundary of width Olx/Oly
101    o add call monitor to TAF set of required calls (flow directives)
102      and include in natl_box_adjoint
103    o untangle a few ifdefs related to cost, ctrl, autodiff
104      untangel a few ALLOW_ECCO_OPTIMIZATION
105    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
106      (theta2, salt2 in ecco_cost_weights)
107    
108    checkpoint56c_post
109    o OBCS as control variables
110      - update ctrl_ad_diff.list, obcs_ad_diff.list
111      - remove balance of obcs controls from default
112      - fix index bug nobcs in ctrl_init
113      - fix dummy fields filen in ctrl_pack
114      - add dummy weights for obcs
115    o lsopt: comment out fort.94 output
116    o optim:
117      - remove unnecessary header files
118      - adjusted namelists
119      - add xerbla.F to Makefile
120    o exf:
121      - multiple modifications of exf_check_range
122      - unit change in exf_init_runoff from [m/year] to [m/s]
123    o mdsio:
124      - i/o-vector change debugLevel from debLevA to debLevB
125    
126    checkpoint56b_post
127    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
128      is called from DO_THE_MODEL_IO
129      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
130      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
131      - clean up PTRACERS_WRITE_TIMEAVE a little
132    o add another verification experiment that tests both the cfc-pkg and
133      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
134      reactive tendencies treated inline with regular timestepping
135    o testreport previously did a lousy job of comparing small numbers, so
136      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
137      implemented in the little c-progam tmp_cmpnum.c which is embedded in
138      testreport.
139    o ptracers_monitor: bug fix for MPI
140    
141    checkpoint56a_post
142    o GCHEM: finish reorganizating the package
143      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
144        (introduces another 3D-array for each passive tracer, but only if
145        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
146        gchemTendency is not needed because the timestep is done separately)
147      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
148      - GCHEM is now---more or less cleanly---separate from PTRACERS
149      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
150        so clear to me how that should be done in a general way.
151    o CFC: improve formatting of output in CFC_ATMOS
152    o PTRACERS:
153      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
154        that ALL experiments with ptracers enable can be checked. This makes
155        GCHEM_MONITOR obsolete.
156      - include a runtime parameter PTRACERS_monitorFreq that defaults to
157        monitorFreq
158      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
159    o add PTRACERS (PTR0[1-5]) to testreport output
160    o exf_check_range:
161      * default changed to .TRUE.
162      * will check values for niter0 if debLevA, every timestep if debLevB
163      * STOP in exf_check_range if 'out of range'
164      * range chosen generous to allow for potential extema
165      TBD: a version with stricter range
166           permitted range would be runtime parameters
167    o GMredi:
168      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
169      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
170      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
171    o GCHEM:
172      - move call to GCHEM_FORCING_SEP, so that it is now called before
173        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
174      - introduced a useGCHEM runtime flag and applied it everywhere.
175      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
176        this flag is now only visible within GCHEM-pkg routines.
177      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
178        be replaced by a 3D array that is computed before thermodynamics; for
179        this, the tracer ID iTracer had to be included into the parameter list
180        of ptracers_forcing
181      - set up forward_step to call gchem_forcing, that will replace
182        gchem_forcing_int in ptracers_forcing
183      - cleaning up
184    o small cleaning of exch2: remove files that are also in eesupp/src
185    
186    checkpoint56
187    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
188    o mnc: cleanup "full" files--fixes out-of-memory problem
189    o ECCO-GODAE
190      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
191      * fully merged and updated from SIO code
192        windstress sign change affects
193        - exf_inscal_[u/v]stress
194        - sign of xx_tau[u/v] adjustments
195        - signs in cost_scat
196      * ctrl_get_gen: avoid update of tau[u/v] for first few days
197      * natl_box_adjoint updated and compressed
198      * 2-level checkpoint switch added
199        (tested in EXP. 1 of natl_box_adjoint)
200      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
201    o SVD
202      * first complete, non-hacked version for SVD calculations
203      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
204        performed via direct access files admtlm_vector.it????
205        (via ctrl_[un]pack)
206      * optimcycle is used for ARPACK iteration counter
207        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
208      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
209        and add linear transforms where necessary
210      * controls are initial/final SST, SSS (can be extended; need to check
211        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
212    o mdsio: filename info to both stderr, stdout
213    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
214      from sign change
215    
216    checkpoint55j_post
217    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
218      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
219    o add consistent build directories and .cvsignore files to verification
220    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
221    o make all subroutines 30 or less characters in length for certain older
222      compilers to work (a thorough search only turns up two routines in
223      pkg/ptracers)
224    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
225      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
226    
227    checkpoint55i_post
228    o change arrays for total vertical diffusivity (2.D if explicit,
229      3.D if implicit) ; each ptracer uses its own background value.
230    o added mnc/NetCDF output capability to ocn_compon_interf
231      - added bits to verification/cpl_aim+ocn so that it can run on
232        ITRDA and other clusters without the mpirun "-wd" option
233    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
234      configuration
235    o give MNC the ability to create additional files rather than
236      exceeding a specified file size limit "MNC_MAX_FILESIZE"
237      - the default is just less than 2GB which is a practical limit
238        on many systems
239    o Compute the non-local term using either KPP vertical diffusivity (=default)
240       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
241    
242    checkpoint55h_post
243    o add verification test "vermix"
244    o remove all the *_ioinc flags and replace with the single global
245      outputTypesInclusive flag
246    o allow to set a vertical profile of vertical diffusivity for T & S
247    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
248    o useMNC moved from data.mnc to data.pkg
249    
250    checkpoint55g_post
251    o Renaming carbon AD experiments to comply with testreport conventions
252    o Updating adjoint of Held-Suarez hs94.1x64x5
253    o Fixing directives for non-ECCO forward_step, after ECCO directives
254      have been fixed to avoid recomp. of do_oceanic_phys
255      Works well for global_ocean.90x40x15,
256      but recomp. issue remains for carbon
257    o Updating adjoint output for natl_box_adjoint after
258      pkg/ecco has been modified (see taga c55d_post)
259    
260    checkpoint55f_post
261    o rename to timeave_init_fixed
262    
263    checkpoint55e_post
264    o some delicate re-shuffle of store directives to avoid one
265      extra call of do_oceanic_physics
266      affects ecco_the_main_loop.F, do_oceanic_physics.F
267      checkpoint_lev1_directives.h
268    o NB: this may break global_ocean adjoint temporarily,
269      but it is clear how to fix it. Will do later, need this now.
270    
271    checkpoint55d_post
272    o ECCO specific cost function terms (up-to-date with 1x1 runs)
273    o ecco_cost_weights is modified to 1x1 runs
274    o modifs to allow observations to be read in as
275      single file or yearly files
276    o enable to read exf forcing fields as either
277      single file or yearly files (flag useExfYearlyFields)
278    checkpoint55d_pre
279    
280    o switch between 2-level and 3-level checkpointing
281    o add ability of MNC to write local and "partial" (eg. 2D slices where
282      the full 3D field is never actually stored) arrays to NetCDF files
283      with the correct (that is, the complete multi-dimensional) set of
284      array indicies
285      - used in mom_vecinv() to write the diagFreq output
286      - tested (demonstrated) in verification/aim.5l_cs
287    o further mnc-ification
288      - add verification/lab_sea to the list with mnc setups
289      - fix undefined mnc v-names in cd_code
290      - add kpp to mnc output (both snapshot and timeave)
291    o non-hydrostatic code
292      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
293        in calc_gw.F
294      - defaults to viscAh
295      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
296        friction or Leith) in non-hydrostatic mode, as long as there is
297        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
298    o pkg/cost
299      extend simple cost functions to treat time mean quantities
300      (T,U,V) via cost_accumulate_state from cost_tile
301    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
302        be 2 times larger than the minimum size the advection scheme requires.
303        now get a perfect conservation of salt in advect_cs test-exp (updated)
304    o GGL90 (Gaspar's TKE mixed layer)
305      - add horizontal diffusion of TKE, requires exchanges in
306        do_fields_blocking_exchanges, horizontal diffusivity is zero by
307        default. In OPA there is no horizontal diffusion of TKE but the
308        mixing coefficients are computed from a horizontal average of TKE of
309        6 points or so. I think that diffusion has a little more physical
310        justification.
311      - clean up ggl90_calc in the hope of reducing memory usage (this hope
312        was in vain)
313      - mask tke-variable in ggl90_init
314    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
315    o fix biharmonic diffusion on CS-grid.
316    o more obcs stuff
317      - added obcs_external_fields_load as an alternative to the EXF-pkg option
318        for reading boundary values. This routine is called from
319        obcs_prescribe_read
320      - updated obcs_check
321      - changed sponge layer relaxation parameter units for days to seconds
322      - turned off sponge layer by default
323      - changed argument list of OBCS_CALC to myTime+deltaTclock
324      - fixed about 35 bugs in obcs_external_fields_load
325    
326    checkpoint55c_post
327    o obcs stuff
328      - new runtime flags useOBCSprescribe, useOBCSbalance
329      - re-arranged obcs_calc
330      - moved exf_getobcs to obcs_prescibe_read
331        obcs_prescibe_read is called after ORLANSKI stuff
332        and independent of it (executable can contain all).
333      - updated obcs_check
334      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
335        These may be necessary only if tangential velocities are
336        prescribed at OB, not sure, needs testing.
337    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
338      which simplifies the calls and passes the ifc check-bounds test
339    
340    checkpoint55b_post
341    o add a 2D scalar, Z location, exchange_2 routine.
342    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
343      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
344      affects advect_cs results (for the wrong reason): update output.txt
345    o use a more standard discretization for biharmonic viscosity ;
346     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
347      affects results of dome set-up: update output.txt
348    o fix gad_advection.F (CubedSphere part), back to version 1.23
349    o fix bug in mom_vi_del2uv.F (CubedSphere part).
350    
351    checkpoint55a_post
352    o merged code to
353      * prescribe/read time-dependent open boundaries
354        (works in conjunction with exf, cal)
355      * sponge layer code for open boundaries
356      * each boundary N/S/E/W now has its own CPP option
357        (healthy for the adjoint)
358    
359    checkpoint55
360    o up-to-date adjoint of previous breaks
361      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
362      - global_ocean_ebm: adjoint still needs fix (TLM ok)
363      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
364      - carbon: * remove tr1-related adjoint verification
365                * add ptracer as control variable
366    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
367      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
368    
369    checkpoint54f_post
370    o in verification/carbin/ remove experiment related to
371      ALLOW_PASSIVE_TRACER (array tr1 etc)
372      code_ad/ input_ad/ results_ad
373    
374    o add two new packages
375      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
376        + subject to optimization (memory)
377      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
378        + subject to reordering (many GOTOs in the original code)
379        + so far opps is called for every (i,j) point, and then operates in
380          the vertical; one may want to reorder the scheme in order operate in
381          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
382          fields)
383    o overhaul of IO so that we now have flags for MDSIO and/or MNC
384      - all verification tests compile and run with linux_ia32_g77
385      - defaults are compatible with current input files--nothing
386        should change if you were not previously using MNC
387      - MNC output has been added in numerous places (eg. timeave)
388        but there are still a few writes not yet do-able with MNC
389        (this is in progress)
390      - flags now allow for either/or/both use of MDSIO and MNC and
391        documentation will soon follow
392      - numerous small formatting cleanups for ProTeX
393    o add version info (via BUILD_INFO.h) to MNC and stdout
394    
395    checkpoint54e_post
396    o add two new packages
397      - pp81 (Packanowski and Philander, 1981), Richardson number and
398        stratification dependent mixing
399      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
400      - these scheme operate in a similar manner as KPP (without ghat, of
401        course), however there is only one diffusivity that is used for both
402        temperature and salinity (and passive tracers)ç
403    o add offline package
404    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
405      provided by Stephanie Dutkiewicz
406    o genmake2: add ability to search for C compilers and cleanup test output
407      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
408    
409    checkpoint54d_post
410    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
411    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
412      leading to additional shift by 5 days each year of integration
413       (i.e. leading to considerable offset over the years)
414    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
415    o start with no AB and no initial filtering (staggerTimeStep):
416      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
417    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
418      (external loading & cpl import/export stay in forward_step.F)
419    o update coupling interface to work with new staggerTimeStep
420    o change MDSIO ptracers_pickup.
421    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
422    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
423    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
424    
425    checkpoint54c_post
426    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
427      this affects (truncation error) output.txt of test-exp:
428       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
429    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
430    o change Qnet to always be the net heat flux, (+upward).
431      affects (truncation error) output of natl_box exp.: updated
432    o define the max number of passive tracers in PTRACERS_SIZE.h
433    o start to test mnc routinely in exp0
434    o add sea-ice loading (sIceLoad) as a new forcing field.
435    
436    checkpoint54b_post
437    o add testreport "-j JOBS" option for parallel builds (tested and pretty
438       impressive on Altix and Opteron systems)
439    o diagnostics can now write NetCDF files through the mnc package
440    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
441    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
442    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
443      affects (truncation error) output of lab_sea & natl_box exp.: updated
444    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
445    
446    checkpoint54a_post
447    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
448    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
449    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
450    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
451      + internal_wave (shift in writing cg2d_ini_res)
452    checkpoint54a_pre
453    
454    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
455      - modified verification/lab_sea and natl_box_adjoint accordingly
456    
457    checkpoint54
458    checkpoint53g_post
459    o prepare splitting of thermodynamics: store convect.counter in common block
460    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
461      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
462    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
463    o new parameter "nShapS": allow to treat differently S from T (nShapT)
464    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
465    o restore adjointability
466    
467    checkpoint53f_post
468    o modifications that affect AIM experiment results (update output.txt):
469      - no advection of S at top interface Nr (pkg/generic_advdiff)
470      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
471    o AIM pkg:
472      - include stability function into surf.Flux derivative relative to Tsurf
473      - calculate clear-sky radiation & surface temp. change (for diagnostics)
474    
475    checkpoint53e_post
476    o merged cylindrical coord configuration
477    o added rotating_tank experiment
478    checkpoint53e_pre
479    
480    checkpoint53d_post
481    o faulks upgraded: re-generate output.txt that have changed:
482       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
483    o Added Bryan and Lewis, 1979, vertical diffusivity profile
484    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
485    o added Sadourny discretization of Coriolis
486      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
487      - re-enabled use of omega3 (useAbsVorticity)
488    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
489      vector-invariant equations
490      - note: does *NOT* yet use same variable visc. for no-slip BC's.
491    o recoded the lateral boundary conditions for non-hydrostatic w, this time
492      hopefully without new bugs
493      - still to do: biharmonic friction for non-hydrostatic w
494    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
495    o regenerated output for global_ocean_ebm (using -ieee)
496    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
497      of mom_common/
498      - simple re-arrangement of instructions within computing loop
499    checkpoint53d_pre
500    
501    checkpoint53c_post
502    o new version of coupler for AIM+thSIce and Ocean models
503     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
504     - land: change Evaporation of snow
505     - aim with thSIce: fix bug in snow-precip.
506    o changes to calc_gw.F
507     - bug fix for w^2 term near the bottom boundary
508     - (hopefully) improve the lateral slip boundary condtions for use with
509        partial/looped cells
510      - because the bug fix changes two verification experiments anyway (exp5
511        and plume on slope), change the lateral boundary condition from half slip
512        to the value of no_slip_sides
513    o ebm package wasnt quite up to the parallel task. Fixed that.
514    o Adjoint of EBM package + verification
515      * TLM OK
516      * ADM not sufficient accuracy yet (needs further testing)
517    
518    checkpoint53b_post
519    o Commiting new energy balance model to repository
520      * package is pkg/ebm
521      * verif. is verification/global_ocean_ebm
522      * references are in ebm_driver.F
523    C      * X. Wang, P. Stone and J. Marotzke, 1999:
524    C        Global thermohaline circulation. Part I:
525    C        Sensitivity to atmospheric moisture transport.
526    C        J. Climate 12(1), 71-82
527    C      * X. Wang, P. Stone and J. Marotzke, 1999:
528    C        Global thermohaline circulation. Part II:
529    C        Sensitivity with interactive transport.
530    C        J. Climate 12(1), 83-91
531    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
532    C        Destabilization of the thermohaline circulation
533    C        by atmospheric eddy transports.
534    C        J. Climate 7(12), 1870-1882
535    o Will need long integration testing.
536    checkpoint53b_pre
537    
538    o created pkg/mom_common in preparation for variable viscosity code
539    o renamed and split ini_mnc_io
540    o pkg/land: only liquid water can diffuse or run-off
541    o AIM using land: soil wetness availability account for snow
542    o added printMapIncludesZeros to EEPARMS namelist
543    
544    checkpoint53a_post
545    o restore TAMC compatiility for exf_constants.h
546      (no usage of _d in .h)
547    o Additional storing in KPP in an attempt to fix
548      TAMC problem with adjoint of KPP code.
549      (no success...)
550      Identical code works fine with TAF.
551    o Fixed verification/natl_box_adjoint experiments.
552      Initial conditions for Experiments 4 and 5 are now
553      set to "SEAICE_initialHEFF=0", which is more reasonable,
554      and hence gives results closer to that of Experiment 2.
555      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
556    
557    checkpoint53
558    o stable checkpoint with up to date adjoint
559      TLM tests only run for 1st grdchk at the moment. Its unclear if
560      this is a code problem or a problem with resetting code for g_
561      variables that is being autogenerated wrong.
562      Otherwise:
563       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
564       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
565         are both still in chaos following their security messes.
566    
567    checkpoint52n_post
568    o various build (mostly genmake2) changes including:
569      - ability to build/run more easily within Cygwin and MacOS X
570      - more complicated Makefiles with a stronger dependence on Gnu Make
571    o pkg/seaice modifications
572      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
573        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
574        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
575      - changed proxy for geostrophic velocity and updated
576        verification/lab_sea/results/* accordingly
577      - removed ADI dynamic solver from pkg/seaice
578      - replaced all occurrences of 1/CSTICE or 1/CSUICE
579        they caused a segmentation fault under certain circumstances
580      - removed unused field WATR
581    o bug fix in exf-package:
582      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
583         now reflect that.
584    o small fixes in the cal-package:
585      - set reference date to first of January for the 'model'-calendar
586      - failing of cal_CheckDate in cal_FullDate now actually results in a
587        warning
588    o small modifications in exf-package to increase flexibility:
589      - change climtempfreeze from a constant to a runtime parameter that
590        is specified in data.exf_clim (default = -1.9)
591      - introduce runtime parameter windstressmax (default = 2.0) that is
592        specified in data.exf
593    o fix in pkg/thsice:
594      - update Evap (Tsf changes) to be consistent with Latent heat flux
595      - maintain snow precipitation unchanged (even if Tsf >=0).
596     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
597    
598    checkpoint52m_post
599    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
600      this does not change any of the results, because myIter=0 in swfrac always
601      lead to jwtype=2 (the default anyway), but the call makes little sense
602      as a default
603    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
604    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
605      atmospheric model (AIM) to use it ; add a "slab ocean" component.
606    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
607    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
608    o extending useSingleCpuIO option to work with new exch2 I/O format
609      - old-style, missing-tile I/O is still accessible by defining CPP
610        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
611    o monitor package can write to NetCDF files and/or STDOUT
612    o fix re-definition bug in MNC_GRID_INIT_ALL()
613    o doc/api_reference added
614      - a framework for building an API Reference Manual using all
615        the "protex" comments embedded in the code
616      - see pkg/generic_advdiff, pkg/mnc for examples
617    o MNC:
618      - make myThid the last argument for all subroutines
619      - new default for the grid files: NO halos
620      - add useMNC and other run-time flags
621      - separate per-file-group handling of the unlimited dimension
622      - early initialization of MNC w/ flags read at the eeboot stage
623        and lookup tables set in initialize_fixed
624      - write all MNC output to a freshly-created directory
625    o thermodynamics sea-ice (thsice) is now tested with testreport.
626    o test exp. advect_cs: use the standard cs32 grid ; update output.
627    o Added functionality to grdchk:
628      pick global i,j,k position (or nearest wet) where to perform check.
629    
630    checkpoint52l_post
631    o new land formulation:
632      a) use ground enthalpy as prognostic variable to ensure exact
633         energy conservation.
634      b) account for water temperature and for latent heat of freezing
635         in all processes (rain, run-off, ground storage)
636      c) compute surface and ground temperature implicitly.
637    o aim_v23 modification for new land model:
638      a) Treat separately land / ocean / sea-ice surface fluxes
639         to allow implicit computation of land & sea-ice surface temp.
640      b) add snow precipitation.
641    checkpoint52l_pre
642    
643    o fix problem (when 1 tile is empty) in min/max monitor.
644    o fix bug in timeAve (u,vZetatave in common block)
645    o no restoring terms under ice for pkg/seaice
646    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
647    o bug fix for pkg/seaice pickups
648    o change MNC call locations and add coordinate attributes
649    o mask vorticity at the corner ; affects global_ocean.cs output
650    o fix ini_curvilinear_grid ; test CS experiments with mpi
651    o aim.5l_cs: modify sea-ice fraction input file ; update output
652    o exf: Adding simple range check routine for exf fields after read
653    
654    checkpoint52k_post
655    o removed top-level directory "diags"
656      - we migrated these functions to pkg/timeave a long time ago
657    o fixed bug introduced in pkg/monitor
658    o accuracy ctrlprec = 32 insuffient for gradient checks using
659      averaged fields (I/O via cost_averages)
660      -> use ctrl.h in active_file*.F to control I/O precision.
661    o paramter list of CALL ADTHE_MAIN_LOOP
662    o added initial do_the_model_io to ecco
663    o set all ...Freq to zero after cost_final
664      taveFreq, dumpFreq, pChkptFreq
665    o MAIN and ECCO differentiability restored
666    
667    checkpoint52j_post
668    o fix nchklev in tamc.h for global_ocean...
669    o Bringing flow and store directives up-to-date
670    o Really weird thing!
671      call do_the_model_io from the_main_loop with parameters
672      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
673      TAF places a faulty re-call of initialise_varia
674      after cost_final call which should not be there!
675    checkpoint52j_pre
676    
677    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
678      error messages
679    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
680    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
681      debug output
682    o modfied mdsio_writefield.F to handle non-global files under exch2
683    o update AIM Cubed-Sphere exp (aim.5l_cs):
684      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
685    o update AIM Equatorial Channel exp:
686      use standard aim_v23 pkg and change the SST fields to be more realistic.
687    o globalFile now works with exch2
688    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
689      mon_vort3.F to make exch2 friendly with >1 tile per cube face
690    o limit timeave output for hi-res integrations
691    
692    checkpoint52i_post
693    o removed CPP_EEOPTIONS.h from verification/*/code
694    o updated the tiling for global_ocean_pressure
695    checkpoint52i_pre
696    
697    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
698      the old pkg/aim).
699    
700    checkpoint52h_pre
701    o shortened offending lines in exch2_send_rx?.template
702    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
703    o genmake2: add build & execute test for NetCDF code
704    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
705      old grid files, moved CPP_EEMACROS.h to pkg/exch2
706    o added useSingleCPUIO flag to monitor.F and mon_out.F
707    o added temporary hack for sea-ice dynamics on the cube:
708      metric terms are ignored and it is assumed that
709      there is no sea-ice on cube faces 1, 2, 4, and 5.
710    
711    checkpoint52f_post
712    o added exch2 cube routines to pkg/exch2
713    o modified hs94.cs-32x32x5 to use it
714    o added new grid files to hs94.cs-32x32x5
715    checkpoint52f_pre
716    
717    checkpoint52e_post
718    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
719      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
720    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
721      to work with implicit vertical advection and AB ;
722    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
723    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
724     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
725    checkpoint52e_pre
726    
727    o fix bug in impldiff when Nr=1 or Nr=2.
728    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
729    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
730    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
731      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
732    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
733    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
734    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
735    
736    checkpoint52d_post
737    o re-tiled many expts to allow comparison in multi-processor mode
738      - updated output accordingly
739      - changed hs94.128x64x5 to use intial T from file rather than use the
740        random number generator
741    o add infrastructure in model routines for fizhi and gridalt packages
742    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
743    o changes to permit hi-res, cubed-sphere, configuration
744      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
745      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
746      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
747        of surface winds for the cube
748      (A verification experiment, based on global_ocean.cs32x15, but with
749       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
750       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
751       complete with example surface forcing files and matlab scripts to look
752       at the output and compare it with that of global_ocean.cs32x15.)
753    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
754       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
755       to conform to the common rule.
756    o check-in the first version of the coupler + interfaces for multi-components
757       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
758       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
759       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
760       - ocean and atmos. share the same horizontal grid (no interpolation).
761       - exchanges between component and coupler is done in forward_step
762    o new verification experiment, cpl_aim+ocn:
763       coupled ocean - AIM atmosphere on cs32 grid.
764    
765    checkpoint52d_pre
766    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
767    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
768    
769    checkpoint52c_post
770    o Fixing OPTIONS files for use of exf:
771      - ALLOW_ECCO not needed
772      - ECCO_CPPOPTIONS.h should not be included from
773        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
774        as has been the case in the past
775      - All cal/exf related options are currently set in
776        single header file. Should remain so until we
777        agree on a consistent new policy.
778    o Removed all CPP options for cal package.
779      cal has no more CPP options.
780    o modified STOREs in GAD_ADVECTION
781    o corrected key comp. for passkey
782    
783    checkpoint52b_post
784    o new version: "thsice" of thermodynamic sea-ice pkg:
785     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
786     - modify fluxes but do not change theta directly;
787     - light cleaning of bulk_force pkg (still needed with thsice).
788     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
789       + output_thsice.txt to test thsice & bulk_force pkgs.
790    o put back grid & coriolis monitor output.
791    checkpoint52b_pre
792    
793    o call "do_the_model_io" at the beginning (=> dump initial state)
794    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
795    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
796      (need info on NUMBER_OF_PTRACERS)
797    o missing PTRACERS headers in some routines
798    o default tamc.h in pkg/autodiff supposed to crash
799      to ensure proper customization
800    
801    checkpoint52a_post
802    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
803      - moved surfaceTendencyTice from pkg/seaice to main code
804      - subroutine FREEZE_SURFACE now limits only surface temperature
805        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
806        => new output.txt for global_ocean.cs32x15 & global_with_exf
807      - keep the old version of FREEZE for backward compatibility;
808        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
809      - corresponding modifs for TAF directives
810    o added surface flux output variables to TIMEAVE_STATVARS
811    o time-averaged output for pkg/ptracers
812    o fix problem with ECCO-related divided adjoint
813      snapshot file was missing some ad-variables,
814      but no warning issued by TAF
815    
816    checkpoint52a_pre
817    o some bug fixes for #undef REAL4_IS_SLOW
818    
819    checkpoint52 = ecco_c52_e35
820    o after testing adjoints of checkpoint51u_post
821    
822    checkpoint51u_post
823    o this is the post-merge tag of the ecco-branch
824      (needs another clean checkout and re-testing)
825    o various natl_box_adjoint configs and results
826      but no input fields
827    o obcs adjoint not yet merged!
828    o adding ECCO global 1x1 and 2x2 degree configs
829    o updated/extended some store directives for seaice
830    o pkg/ecco now containes ecco-specific part of cost function
831    o top level routines the_main_loop, forward_step
832      supersede those in model/src/
833      previous input data.cost now in data.ecco
834      (new namelist ecco_cost_nml)
835    o in ctrl/ cleaned some cross-dependencies and updated CPP options
836    
837    checkpoint51t_post
838    o this is the pre-merge tag of the ecco-branch
839    
840    checkpoint51s_post
841    o cleanup: removed various obsolete #define-s
842    o pkg/grdchk
843      - renamed 'ph-grd 3' to 'grad-res'
844      - merged from ecco-branch
845        (remaining bug fixes for obcs gradient checks)
846      - additional high-precision output for testreport
847        (grep for 'precision_grdchk_result')
848    
849    checkpoint51r_post
850    o cleaned up or removed CPP_OPTIONS.h files
851    o updated results for some of the tests to reflect the new
852      optfiles (-ieee: -O0 instead of -O3)
853    
854    checkpoint51q_post
855    o cd_code:
856      - moved cd_scheme.F -> cd_code_scheme.F
857      - separate read_checkpoint from cd_code_ini_vars.F
858      - separated cd_code part from write_checkpoint
859      - updated AD_SOURCE, generated .flow
860      - added CD_CODE_VARS.h to the_main_loop
861      - Moving cd_code specific store dir.s to pkg/cd_code
862    o ctrl package totally restructured
863      - pack/unpack now optional and decoupled from
864        xx_/adxx_ I/O
865      - ctrl_pack/unpack cleaned
866        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
867      - confined inclusion of AD_CONFIG.h to where necessary.
868    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
869    
870    checkpoint51p_post
871    o create initial cd_code package
872      - WARNING: the initialization of fields within packages
873        is broken because INI_FIELDS (where READ_CHECKPOINT is
874        called) is called *before* PACKAGES_INIT_VARIABLES.
875        This seems to be backwards since
876        1) its important to initially zero the entire field including
877           the "halo" region
878        2) zeroing needs to be done *before* reading pickup info
879           and the pickup call might or might not happen in any
880           particular run
881      - this needs an overhaul for R2
882    o cleanup verification/*/code/GMREDI_OPTIONS.h
883    o cleanup testreport
884    
885    checkpoint51o_post
886    o bringing AD-related verif's up to date with genmake2
887      - carbon/
888      - global_ocean.90x40x15/
889      - hs.94.1x64x5/
890      - (front_relax/ )
891    o (more) consistent directory structure for AD-related verif.'s
892    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
893    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
894    o bug fix in find_alpha.F for MDJWF:
895      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
896        change rho -> rho-rhoConst
897      - replace call find_rho to find_rhonum
898    o initialisation of rFlx extended to full array (required by TAF)
899      and shifted to thermodynamics
900    o removed PTRACERS.h in ptracers routine
901    o added surfacetendencyPtr to S/R parameter list pracers_forcing
902    o Correcting initialisations for fVerU, fVerV.
903    o helping TAF to recognize dependency on kUp for
904      fVerU, fVerV
905    o Replacing delZ by delR in pkg/ctrl/
906    checkpoint51o_pre
907    
908    o undid all of cp51 pending some cleanups and discussion
909    o added the [#include "AD_CONFIG.h"] statement to all files that need
910       it for adjoint/tl #defines
911     o re-worked the build logic in genmake2 to support AD_CONFIG.h
912     o removed tools/genmake since it no longer works
913    
914    checkpoint51n_post
915    o modifications to make FREEZE flux visible to pkg/kpp
916      - moved surfaceTendencyTice from pkg/seaice to main code
917      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
918      - subroutine FREEZE now limits only surface temperature
919        (this means new output.txt for global_ocean.90x40x15,
920         global_ocean.cs32x15, and global_with_exf)
921    o added surface flux output variables to TIMEAVE_STATVARS
922    
923    checkpoint51n_pre
924    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
925    o added [#include "AD_CONFIG.h"] to all files that use the following
926      defines:
927      - ALLOW_ADJOINT_RUN
928      - ALLOW_TANGENTLINEAR_RUN
929      - ALLOW_ECCO_OPTIMIZATION
930    
931    checkpoint51m_post
932    o incorporating changes to get TAMC/TAF working in genmake2
933      - added new TAMC/TAF targets to the Makefile
934      - various cleanups related to package handling
935      - these changes should have no impact on the forward model
936    
937    checkpoint51l_post
938    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
939     - faster algorithm for cal_addtime.F
940     - higher precision arithmetic, where needed
941     - pkg/exf *startdate variables changed from calendar date to
942       model integration time
943    
944    checkpoint51l_pre
945    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
946    o enable to apply restoring on S & T only in a latitude band.
947    o update output (external_forcing_surf modif. change truncation errors)
948       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
949    
950    checkpoint51k_post
951    o change default to: useNHMTerms=.FALSE.
952     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
953       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
954     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
955        exp1, ideal_2D_oce
956     - change data file of oceanic exp (leave the results unchanged for now)
957       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
958    o set gravitySign automatically according to the vertical coordinate used
959      (and change sign: back to "logical" value: +1 when R increases downward)
960    o added an include barrier to the default CPP_OPTIONS.h and
961      removed the #include "PACKAGES_CONFIG.h" from it
962    o fix a bug in mom_fluxform (from chk51j_post)
963    
964    checkpoint51j_post
965    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
966    o adjusted some flow directives (dynamics, thermodynamics)
967    o added cubed-sphere case to test cost function
968    o heckpoint_lev?_directives.h now include
969      pkg-specific directives, whenever those are enabled.
970    o Moving pkg-specific flow directives to corresponding pkg
971      Moving pkg-specific differentiation list to corresponding pkg
972      Moving pkg-specific checkpoint-lev storing to corresponding pkg
973      ---> conventions are
974           - pkg_ad.flow
975           - pkg_ad_diff.list
976           - pkg_ad_check_lev?_dir.h
977    
978    checkpoint51i_post
979    o merge of the branch-genmake2
980      - knowingly breaks the older genmake
981      - automatic generation of all ALLOW_${PKG_NAME} defines
982      - new testreport supersedes older testscript
983    o large number of package inclusion and header cleanups
984    checkpoint51i_pre
985    
986    o new output for adjoin of global ocean vector invariant
987    o fix for checkpoint of thermodynamic seaice and bulk_force
988    o Steph gchem various cleanups
989    
990    checkpoint 51h_pre
991    o fixed some single quotes
992    o modify gchem pkg to be more versatile
993    o modifications to clean up dic pkg
994    o add pkg/cfc
995    
996    checkpoint51g_post
997    o provide links for ARPACK and ADM*TLM
998    o start removing verification/vero/
999    o update AD-related stuff
1000      (in particular some IF-statements in model/src/ routines)
1001    o adding to verification/global_ocean.90x40x15/ adjoint of
1002      vector invariant setup
1003    
1004    checkpoint51f_post
1005    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1006    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1007      of tracer Green's fucntions for ocean inversion project.
1008    
1009    checkpoint51f_pre
1010    o Added on-the-fly spatial interpolation capability
1011        "USE_EXF_INTERPOLATION" to pkg/exf.
1012      - This is a temporary Cartesian-grid hack until
1013        the super-duper ESMF coupler becomes available.
1014      - See verification/global_with_exf/README for usage example.
1015      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1016        flags and modified pkg/seaice accordingly.
1017    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1018        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1019        non-local transport term.
1020    
1021    checkpoint51e_post
1022    o pkg/mom_vecinv:
1023      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1024      - add time-ave diagnostic of vorticity advection.
1025    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1026    o atmospheric geopotential: - include water vapor effect;
1027                                - use p^kappa in p* scaling.
1028    o land pkg: read initial state from files.
1029    o AIM : add stratospheric drag in the upper level
1030    
1031    checkpoint51d_post
1032    o change function ILNBLNK (=> last non-blank char.) to return zero
1033      (instead of the string length) when the string. char is empty
1034    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1035    o modif's to restore TAMC compatibility
1036      - avoid "_d" constructs in PARAMETER declarations
1037      - avoid interrupting lines by comment lines
1038    o Use cluster local disks for purely local I/O
1039      vs. globally visible disks needed for ctrl stuff
1040      (merged from ecco-branch)
1041      - new active_file_loc... and mdsio_..._loc routines
1042      - affected packages: autodiff, ctrl, grdchk, mdsio
1043    
1044    checkpoint51c_post
1045    o introducing integer flag debugLevel
1046      - debLevZero: suppress all output
1047      - debLevA: standard
1048      - debLevB: equivalent to current debugMode=.TRUE.
1049    o introducing pathname variable mdsioLocalDir for mdsio
1050      that can be specified at runtime
1051      (relevant for cluster I/O to local disk)
1052    `
1053    >>>checkpoint51b_post
1054    adjoint of ptracers
1055    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1056    o extended state in checkpoint_lev?, etc.
1057    o alternative ctrl/cost with tr1 or ptracer
1058    o new comlev1_bibj_ptracers
1059    o new ptracers.flow
1060    o made ptracers_forcing same as external_forcing_s
1061    o added verification for adjoint with ptracers
1062      - adm. grdchk fail so far
1063      - tlm. grdchk OK
1064      - checked tapelev/comlev recomputations: OK
1065    <<<checkpoint51b_pre
1066    
1067    checkpoint51a_post
1068    o added code for biogeochemistry package
1069      - new pkgs: dic, gchem
1070      - new subroutine in ptracers
1071    o modify code for biogeo packages
1072      - in model/src and pkg/ptracers
1073    
1074    checkpoint51
1075    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1076      - autodiff, ctrl, exf, grdchk, seaice
1077      kept separate packages
1078      - cost, ecco, obcs
1079    o updating verification/internal_wave, verification/lab_sea
1080      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1081    
1082    checkpoint50i_post
1083    o Preparing next differentiable checkpoint and sync
1084      of MAIN vs. ecco-branch
1085      - 1st step: this one is differentiable
1086      - 2nd step: next(! not this) checkpoint will have updated packages
1087                  from ecco-branch)
1088    
1089    checkpoint50h_post
1090    o new package "land": provide surface BC for AIM.
1091    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1092    o AIM: use true log-P extrapolation for near surface temp (= as in
1093        F.Molteni paper) ; update aim.5l_cs output.
1094    o New variable in PARM03 for more flexible pickups
1095    o somewhat cleaned package initialisation sequence for
1096      ctrl/ cost/ ecco/ in packages_... routines
1097    
1098    checkpoint50g_post
1099    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1100      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1101      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1102        made the default because of faster convergence than ADI
1103    
1104    checkpoint50f_post
1105    o exf totally restructured
1106      - replaced all exf_set_ routines by one generic exf_set_gen.F
1107        and made sure it's still differentiable
1108      - split exf_getffields.F into new exf_bulkformulae.F
1109      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1110      - updated adjoint/makefile and relevant verif. accordingly
1111    
1112    checkpoint50f_pre
1113     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1114          + change Evap over land. (update aim.5l_cs output)
1115     o added missing .cvsignores and made uniform across expts
1116     o changed configuration of tidal_basin_2d expt
1117     o added pkg/debug functions for tracing code in fatal crashes
1118     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1119     o new fn in pkg/monitor to stop model if solution grows too big
1120     o removed lots of single quotes from comments
1121    
1122    checkpoint50e_post
1123    o make KPP work with PTRACERS
1124     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1125       nearly a copy of kpp_transport_s
1126     - there is no analogue to SurfaceTendencyS, so I have to use
1127       gPtr(of the surface layer) instead
1128    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1129    checkpoint50e_pre
1130    
1131    checkpoint50d_post
1132    o change kpp output from multiple-record state files to single-record state
1133      files analogous to write_state.F
1134    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1135      analogous to the cg2d-related output.
1136    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1137      so that writing to internal file fn (with length 512) fails.
1138    checkpoint50d_pre
1139    
1140    checkpoint50c_post
1141    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1142    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1143    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1144    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1145    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1146    
1147    checkpoint50c_pre
1148    Merging from release1_p13:
1149    o bug fix for pkg/seaice dynamic solver
1150    o Added SEAICE_initialHEFF to pkg/seaice
1151    
1152    checkpoint50b_post
1153    o store u*,v* in gU,V instead of in guNm1,gvNm1
1154    o in order to put the momForcing out of the Adams-Bashforth:
1155      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1156      to timestep.F
1157    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1158    o re-generate output for highly sensitive test-exp:
1159       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1160    
1161    checkpoint50b_pre
1162    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1163    o corrected CPP option mismatch in exf_Bulk... functions for case
1164      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1165    
1166    checkpoint50a_post
1167    o Bug fix for merging between c50 and KPP.
1168      ikey was passed from thermodynamics to kpp_calc via
1169      common block rather than being recomputed in kpp_calc,
1170      in contradiction with new key itdkey.
1171      New key ikppkey created, and tamc.h headers updated.
1172    
1173    checkpoint50
1174    - 2nd step of merge with ecco-branch:
1175      merge changes in ecco-branch back into main trunk
1176    - bug fix in find_alpha
1177    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1178    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1179    - merged some sliced AD support routines
1180    
1181    checkpoint49
1182    merged from ecco-branch:
1183    o exf:
1184      - Enable initialisation of forcing fields to constant
1185        (runtime) values.
1186      - in exf_getffields.F
1187        Reduce i-/j-loop to interior domain, discarding overlaps.
1188        That also fixes wrong TAF-key computations for key_1, key_2
1189        with bulf formulae.
1190      - exf_init.F modify #ifdef for exf_init_evap
1191      - exf_getffieldrec.F, ctrl_getrec.F
1192        The following INT-usages are not safe:
1193          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1194          fldcount = int(fldsecs/fldperiod) + 1
1195        and were modified.
1196    o autodiff: checkpoint_lev...
1197      - updated storing for bulk formulae (some arrays were missing)
1198      - added state for seaice package
1199      - synchronized with main branch
1200    o DIVA:
1201      Modif.s in
1202      - the_main_loop.F
1203      - the_model_main.F
1204      and added cost_final_restore.F cost_final_store.F
1205      o With these changes, it is possible to fully separate
1206        the first forward run to compute the cost function (mdthe_main_loop)
1207        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1208        into separate model executions.
1209        This enables better tuning of DIVA to given queue sizes.
1210      o Loss of cost function value in consecutive DIVA runs is
1211        fixed by storing to 'costfinal' file.
1212      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1213        beginning/end of adjoint integration is accounted for.
1214      The current changes apply to TAF-1.4.26.
1215      TAF has one remaining bug, requiring one manual change
1216      (see MITgcm manual).
1217    o cal: synchronized between MAIN and ecco-branch
1218    
1219    checkpoint48i_post
1220    o Changes to restore differentiability of code w.r.t. previous tag
1221      (mostly adding new routines to make list and replacing
1222      pressure by totPhiHyd).
1223    o Updated and merged grdchk package
1224      - has both ADM and TLM checks
1225      - works for single- and multi-proc.
1226      - output cleaned
1227      - worked successfully for parallel DIVA
1228    o genmake:
1229      - Adding -platform=SP4
1230      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1231    o Modif. for DIVA:
1232      ctrl_unpack should not be called in intermediate DIVA interval.
1233      (similar thing would apply for active files such as
1234      tbar, sbar, psbar, which should not be reinitialised;
1235      only relevant for ecco-branch)
1236    
1237    checkpoint48h_post
1238    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1239    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1240    o Added SEAICE_initialHEFF to pkg/seaice
1241    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1242    
1243    checkpoint48g_post
1244    --- EOS:
1245    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1246      store total Potential in totPhyHyd for diagnostics & EOS.
1247    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1248    --- Pressure/geopotential gradient:
1249    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1250    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1251      ( changes results of global_ocean_pressure )
1252    o NLFS + z-coord.: add eta*Rho' contribution.
1253    o accurate phiHyd when using interface-W at the middle between 2 centers
1254     ( changes results of ideal_2D_oce )
1255    o includes r* 2nd term in potential gradient.
1256    
1257    checkpoint48f_post
1258    Merging from release1_p12:
1259    o Modifications for using pkg/exf with pkg/seaice
1260      - improved description of the various forcing configurations
1261      - added basic radiation bulk formulae to pkg/exf
1262      - units/sign fix for evap computation in exf_getffields.F
1263      - updated verification/global_with_exf/results/output.txt
1264    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1265      (SBO) core products, including oceanic mass, center-of-mass,
1266      angular, and bottom pressure (see pkg/sbo/README.sbo).
1267    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1268      to avoid negative values in shallow regions.
1269      - updated verification/natl_box/results/output.txt
1270      - updated verification/lab_sea/results/output.txt
1271    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1272    o Added useSingleCpuIO option (see PARAMS.h).
1273    o Updated useSingleCpuIO option in mdsio_writefield.F to
1274      work with multi-field files, e.g., for single-file pickup.
1275    o pkg/seaice:
1276      - bug fix in growth.F: QNET for no shortwave case
1277      - added HeffFile for specifying initial sea-ice thickness
1278      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1279    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1280      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1281    o pkg/seaice:
1282      - adjoint-friendly modifications
1283      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1284    
1285    checkpoint48e_post
1286    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1287    o dynamics: change definition of computational domain & adapt mom_fluxform
1288      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1289    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1290        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1291        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1292        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1293        inverted_barometer solid-body.cs-32x32x1
1294      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1295    
1296    checkpoint48d_post
1297    o in preparation for r*:
1298     a) use pre-computed gradient of hydrostatic potential:
1299        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1300     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1301        => affects results of glob_oce_pressure (different truncation error)  
1302      update output.txt of ideal_2D_oce & global_ocean_pressure
1303    
1304    checkpoint48d_pre
1305    o in preparation for r*:
1306      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1307      pass the 2 comp. of the grad. as arguments to momentum S/R.
1308      but for the moment, only used if it does not change the results.
1309    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1310    
1311    checkpoint48c_post
1312    Modifications in treatment of initial flux forcing controls
1313    to avoid extra storing of flux fields.
1314    
1315    checkpoint48c_pre
1316    o Added tidal_basin_2d experiment (currently 1D!)
1317    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1318    
1319    checkpoint48b_post
1320    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1321     (modification to pressure gradient not yet implemented)
1322    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1323      (for U & V) that are used for vertical advection of momentum.
1324    
1325    checkpoint48a_post
1326    o In preparation for r*, use temp. array to compute vertical transport
1327       in flux-form momentum pkg. => change results of few test-exp.
1328      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1329                        lab_sea, natl_box & plume_on_slope
1330    
1331    checkpoint48
1332    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1333    
1334    checkpoint47j_post
1335    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1336    o moved adexch from forward_step to addummy_in_stepping
1337    o added exch in ctrl_map_...
1338    o aveFreq.=0. at end of cost_final to avoid overwrite in
1339      reverse checkpointing loop
1340    o Yet more changes in gmredi:
1341      * adgmredi_calc_tensor
1342        avoiding all recomputation of gmredi_slope_limit
1343      * adgmredi_x/y/rtransport
1344        added flag for excessive storing to avoid recomp. of
1345        u/v/rtans, dTdx/y/z
1346        -> this is not really necessary and very memory-consuming
1347      * adgmredi_slope_psi:
1348        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1349      * gmredi_slope_limit
1350        re-activated full calculation of taperfct for case 'ac02'
1351    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1352    
1353    checkpoint47i_post
1354    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1355    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1356      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1357    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1358    o gmredi: fix few bugs.
1359    
1360    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1361    This will be a good checkpoint to plug into the ecco-branch.
1362    o few modif.'s to get latest version adjointed
1363      (mainly kick out code in ini_linear_phisurf)
1364    o modif's to run adjoint with exactConserv
1365    o case GM_BOLUS_ADVEC should be cleaned
1366      S/R gmredi_slope_psi should be cleaned
1367    o verification/carbon now has exactConserv=.TRUE.
1368    
1369    checkpoint47g_post
1370    o time-average AIM output: becomes independent from statvars time-average
1371      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1372    o After TAF bug fix:
1373      Tested adjoint of gmredi package.
1374      Tests were done with checkpoint47 rather than with latest
1375      checkpoint47f_post since the latter is broken for the adjoint
1376      verification/carbon/ contains both ADM and TLM gradient checks.
1377    Here they are, before they get changed/lost/stolen.
1378    Mostly modif.'s to fix numerical sensitivities.
1379    Gradient checks OK for
1380    - GM_taper_scheme:
1381      * clipping
1382      * ac02
1383      * linear
1384      * glw91
1385      * dm95
1386      * ldd97
1387    - GMREDI_OPTIONS:
1388      * GM_VISBECK_VARIABLE_K
1389      * GM_NON_UNITY_DIAGONAL
1390      * GM_EXTRA_DIAGONAL
1391      * GM_BOLUS_ADVEC
1392    in conjunction with data.gmredi parameters to be checked in
1393    in a few minutes under verification/carbon/code/
1394    
1395    checkpoint47f_post
1396    Merging from release1_p10:
1397    o modifications for using pkg/exf with pkg/seaice
1398      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1399        and SEAICE_EXTERNAL_FLUXES
1400      - pkg/exf CPP options EXF_READ_EVAP and
1401        EXF_NO_BULK_COMPUTATIONS
1402      - usage examples are Experiments 8 and 9 in
1403        verification/lab_sea/README
1404      - verification/lab_sea default experiment now uses
1405        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1406    
1407    checkpoint47e_post
1408    o created a tag prior to creating a branch
1409    
1410    checkpoint47d_post
1411    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1412      at the bottom boundary had an erroneous half slip boundary condition
1413    o added bottom drag and no slip boundary condition capabilities to
1414      oceanic pressure coordinates code
1415    o added new verification experiment global_ocean_pressure, this experiment is
1416      also described in the tutorial section of the manual
1417    checkpoint47d_pre
1418    
1419    checkpoint47c_post
1420    o Added a verification experiment for a global cubed-sphere ocean run
1421      -  verification/global_ocean.cubed32x32x30
1422      -  uses pkg/therm_seaice and pkg/bulk_forcing
1423    
1424    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1425    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1426      when using P-coordinate; only implemented for atmospheric config.
1427    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1428      NOTES: requires option NONLIN_FRSURF to be "#define".
1429    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1430    
1431    checkpoint47b_post
1432    Merging from release1_p9:
1433    o pkg/seaice
1434      - removed GOTO's and added taf directives
1435      - double precision constants to reduce the g77 (Linux)
1436        to F77 (SGI) differences reported in release1_p8
1437    o tools/genmake
1438      - added SGI options
1439    o verification/testscript
1440      - updated to that of checkpoint47a_post
1441    o verification/global_ocean.90x40x15/input/eedata
1442      - modified for SGI f77 compatibility
1443    o verification/lab_sea
1444      - added description of sea-ice model
1445      - added missing matlab routines
1446      - added test of thermodynamics parallelization
1447    
1448    checkpoint47a_post
1449    o new pkg: aim_v23
1450     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1451       for now, keep the same surface forcing as before.
1452     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1453     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1454     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1455    o add diagnostic of surface correction term in monitor output
1456    
1457    o bulk_force and therm_seaice
1458    - Two packages:  bulk_force (Bulk forcing)
1459      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1460    - Earlier integration from Stephaine Dutkiewicz
1461      and Patrick Heimbach.
1462    - Two ifdef statements for compile time,
1463       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1464    
1465    checkpoint47
1466    differentiable version of checkpoint46n_post
1467    o bug fix in quasihydrostaticterms
1468    o * "clean" adjoint code (in terms of extensive recomputations)
1469        can now be obtained for all GMREDI options (i.e. for
1470        - GM_VISBECK_VARIABLE_K
1471        - GM_NON_UNITY_DIAGONAL
1472        - GM_EXTRA_DIAGONAL
1473        - GM_BOLUS_ADVEC )
1474      * However, wrong gradient check problem remains unsolved.
1475      * New CPP options have been introduced for different
1476        tapering schemes
1477    o external_fields_load now part of differentiation list
1478    o pressure needs multiple storing;
1479      would be nice to have store_pressure at beginning or
1480      end of forward_step, e.g. by having phiHyd global (5-dim.)
1481      (NB: pressure is needed for certain cases in find_rho,
1482      which is also invoked through convective_adjustment).
1483    o recomputations in find_rho for cases
1484     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1485    o #define ATMOSPHERIC_LOADING should be differentiable
1486    o ini_forcing shifted to begining of initialise_varia
1487    o Incorporating QNVS line search routines into MITgcm
1488      (this is separate code, and therefore not under pkg)
1489      lsopt/, optim/
1490    o Updated verification/carbon/
1491      - #define GM_VISBECK_VARIABLE_K
1492      - GM_taper_scheme    = 'ldd97'    
1493    
1494    checkpoint46n_post
1495    Merging from release1_p8:
1496    o verification/natl_box:
1497      updating new external_fields_load routine
1498    o New package: pkg/seaice
1499      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1500      The sea-ice code is based on Hibler (1979-1980).
1501      Two sea-ice dynamic solvers, ADI and LSR, are included.
1502      In addition to computing prognostic sea-ice variables and diagnosing
1503      the forcing/external data fields that drive the ocean model,
1504      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1505      The implied surface heat flux is then stored in variable
1506      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1507      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1508      non-local transport term.  Because this call precedes model
1509      thermodynamics, temperature under sea-ice may not be "exactly" at
1510      the freezing point by the time theta is dumped or time-averaged.
1511      N.B.: fairly large differences in accuracy occur across
1512            different platforms/compilers; comparison between
1513            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1514            generated output gives:
1515       T           S           U           V
1516      C D M    c        m  s        m  s        m  s        m  s
1517      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1518      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1519      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1520    
1521      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1522    o GAD:
1523      - generated new common blocks to account for call of
1524        same gad routines with differing traceridentities
1525        (needed to modify tracerIdentity indices in GAD.h)
1526      - generated separate common blocks for case useCubedSphereExchange
1527        (Department of Futurology)
1528      - parameter lists to gmredi_?transport: added tracerIdentity
1529      - added new key indices to tamc.h
1530    o external_fields_load:
1531      - added this routine to TAF list
1532      - needed to make some common blocks global and additional storing
1533        along the same lines as exf package (checkpoint_lev?_directives.h)
1534    o exf:
1535      updated external forcing package
1536      - bug fixes carried over from ecco-branch
1537        (missing OBCS_OPTIONS.h in two routines)
1538      - enable easy to use "no forcing".
1539      - added exf I/O for atmospheric loading
1540      - added exf I/O for runoff data
1541      - transfered scaling between exf <-> MITgcm to exf namelist
1542    o Adding new verification experiment global_with_exf.
1543      This verification experiment is almost identical to the
1544      global_ocean.90x40x15 experiment, except that it uses
1545      the exf (and cal) package instead of the
1546      external_fields_load routine (cf README file).
1547    
1548    checkpoint46m_post
1549    o modified testscript to return -- when there are no lines of "%MON" output
1550    o added new flag "quasiHydrostatic" for QH mode
1551      and new routine quasihydrostaticterms()
1552    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1553      New routine: mom_u_coriolis_nh()
1554    o fixed sign of non-hydrostatic metric terms in u and v equations.
1555      Depend on correct sign of gravitySign.
1556    o added work.pc* to .cvsignore in aim directories using ifc
1557    o introduced flag for controllin non-hydrostatic metric terms
1558    o removed gravitySign from PARM04
1559    o switched to g77/ifc from pgf77 in aim experiments
1560    
1561    checkpoint46l_post
1562    o made convective adjustment work with pressure coordinates:
1563     - changed the direction of k-loop in convective_adjustment.F for the
1564       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1565     - adjusted the reference pressure k-index in convective_adjustment.F
1566     - adjusted the convection condition in convect.F (in analogy to
1567       calc_ivdc.F)
1568     - convective_adjustment no longer computes anything on the halos
1569     - removed the warnings about negative salinity from find_rho.F and
1570       find_alpha.F; instead the new routine look_for_neg_salinity, called
1571       at the beginning of find_rho, find_alpha, and find_beta, does a
1572       check of the entire slice, if CPP-option
1573       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1574    checkpoint46l_pre
1575    
1576    checkpoint46k_post
1577    o fixed the verification/global_ocean.90x40x15 experiment:
1578     - new bathymetry (the world according to A., JMC, and M.)
1579     - new initial fields and forcing fields (*.bin files)
1580     - new POLY3.COEFFS (for the next release one should switch to a full
1581       equation of state: JMD95P or MDJWF)
1582     - fixed several errors and redundancies in the data file
1583     - experiment uses looped cells
1584     - added matlab directory with diagnostic scripts for plotting of output
1585    
1586    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1587     - read AIM physics parameters from a file (data.aimphys)
1588     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1589    
1590    checkpoint46j_post
1591    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1592    o move wVel computation at the end of the time step, in S/R integr_continuity
1593    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1594    o update timeave pkg for wVel diagnostic.
1595    checkpoint46j_pre
1596    
1597    checkpoint46i_post
1598    o Clean up AIM package (and keep the results unchanged):
1599      include CPP_OPTION and use IMPLICT NONE in all routines ;
1600      declare all the variables _RL ; use _d 0 for all numerical constants.
1601      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1602    
1603    checkpoint46h_post
1604    o cleaned up the use of rhoNil and rhoConst.
1605      - rhoNil should only appear in the LINEAR equation of state, everywhere
1606        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1607        and the dynamical equations are all divided by rhoConst
1608    o introduced new parameter rhoConstFresh, a reference density of fresh
1609      water, to remove the fresh water flux's dependence on rhoNil. The default
1610      value is 999.8 kg/m^3
1611    o cleanup up external_forcing.F and external_forcing_surf.F
1612      - can now be used by both OCEANIC and OCEANICP
1613    checkpoint46h_pre
1614    
1615     Added code to convert surface volume flux (fresh water) into
1616     a mass flux when using P coordinates in the ocean (OCEANICP).
1617     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1618    
1619    checkpoint46g_post
1620    o Include a new diagnostic variable phiHydLow for the ocean model
1621      - in z-coordinates, it is the bottom pressure anomaly
1622      - in p-coordinates, it is the sea surface elevation
1623      - in both cases, these variable have global drift, reflecting the mass
1624        drift in z-coordinates and the volume drift in p-coordinates
1625      - included time averaging for phiHydLow, be aware of the drift!
1626    o depth-dependent computation of Bo_surf for pressure coordinates
1627      in the ocean (buoyancyRelation='OCEANICP')
1628      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1629        Theta, Salinity, and Pressure in the parameter list. This routine is
1630        presently contained in find_rho.F. This routine does not give the
1631        correct density for 'POLY3', which would be a z-dependent reference
1632        density.
1633    o cleaned up find_rho
1634      - removed obsolete 'eqn' from the parameter list.
1635    o added two new verification experiments: gop and goz
1636      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1637    checkpoint46g_pre
1638    
1639    checkpoint46f_post
1640    o Enable tangent linear (forward mode) gradient checks:
1641      - extended active file handling to g_... files
1642      - added TANGENT_SIMULATION to theSimulationMode
1643      - extended grdchk package accordingly
1644    o added tangent linear setup in verification/carbon/code_ftl
1645    o added adjoint setup in verification/front_relax/code_ad
1646    
1647    checkpoint46e_post
1648    o Added new equation of state -> MDJWF
1649      - EOS of McDougall et al., 2002, JAOT, submitted
1650      - caveat: the equation of state is only valid for a smaller (more
1651        realistic?) range of values than JMD95P/Z and UNESCO
1652      - added masks to the calculation of pressure in store_pressure
1653      - added more check values for density in check_eos (ini_eos.F), some of
1654        the old check values are out of the range of the MDJWF-eos, so don't
1655        expect perfect matches for those
1656    checkpoint46e_pre
1657    
1658    checkpoint46d_post
1659    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1660      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1661      case of pressure coordinates. eosType='JMD95Z' in
1662      combination with buoyancyRelation='OCEANICP' now causes an error.
1663    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1664      in find_alpha/beta.
1665    checkpoint46d_pre
1666    
1667    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1668      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1669    
1670    checkpoint46c_post
1671    o Changes necessary for ocean in p-coordinates
1672     -  Added new buoyancy relation = 'OCEANICP'
1673     -  Added new parameters = gravitySign (this used to be contained inside
1674        the factor dRdZ which I added when we first switched to R coordinates).
1675     X GM/Redi is not compatible (yet)
1676     X bottom drag and no-slip need to be debugged.
1677    checkpoint46c_pre
1678    
1679    checkpoint46b_post
1680    o Added new equation of state -> JMD95Z and JMD95P
1681      - EOS of Jackett and McDougall, 1995, JAOT
1682      - moved all EOS parameters into EOS.h
1683      - new routines ini_eos.F, store_pressure.F
1684    o Added UNESCO EOS, but not recommended because it requires
1685      in-situ temperature (see JMD95)
1686    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1687      unesco.f to be used with POLY3
1688    checkpoint46b_pre
1689    
1690    checkpoint46a_post
1691    o Added (atmospheric) pressure loading
1692      - new field in FFIELDS.h, etc...
1693      - new cpp flag ATMOSPHERIC_LOADING
1694    o Changed hFacC to _hFacC in calc_phi_hyd.F
1695    o Added SHORTWAVE_HEATING to some files for consistency
1696    checkpoint46a_pre
1697    
1698    checkpoint46
1699    further merges from release1_p5
1700    o new ctrl package
1701      - adopted from ECCO environment to enable optimization
1702      - added Eliassen Palm fluxes to controls
1703    o added Eliassen Palm flux controls to gradient check package
1704    o cost package
1705      - Compatible with new ctrl package
1706      - added Eliassen Palm cost hooks
1707      - modif's of existing cost functions
1708    o Adjoint-related bug fixes in kpp:
1709      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1710      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1711    o autodiff package
1712      - flow directives:
1713        + new for S/R do_the_model_io
1714        + enhanced for S/R checkpoint
1715        + new gmredi.flow
1716      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1717        disable adcommon.h/g_common.h by default.
1718      - fixed problem for adjoint of global_max
1719    o modified verification/carbon/
1720    o New setup for adjoint of global_ocean
1721    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1722    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1723    o incorporated hooks for sponge layer code (external_forcing.F)
1724    
1725    checkpoint45d_post
1726    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1727    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1728      (affects plume_on_slope "cg2d" output)
1729    o add new parameter deltaTfreesurf for free-surface time stepping
1730    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1731    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1732    o change phiMin in exp1 (to agree with documentation)
1733    o add new flags:
1734     - T,S forcing inside/outside Adams-Bashforth
1735     - turn off temp,salt advection and/or forcing
1736     - for each tracer, define internal flag for multiDimAdvection & A-B
1737    o monitor: change definition of KE to check conservation of Energy
1738    
1739    checkpoint45c_post
1740    o Removed f90 comments ("!")
1741    o Modified initialisations to enable exf package for MITgcm
1742      (without invoking ECCO_PACKAGE).
1743    o modifications to gradient check package (Martin Losch)
1744      - enable centered differences
1745      - modified format of standard output
1746    
1747    checkpoint45b_post
1748    o cleaned exchange calls in cg2d
1749    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1750    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1751      to configure barotropic setup (Martin Losch)
1752    o moved some initialisations within bi,bj loop in dynamics
1753      (TAF flow dependency)
1754    o in initialise_varia, moved call packages_init_variables
1755      before convective_adjustment_init
1756      (corresponding adjustment of TAF tape initialisation).
1757    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1758    
1759    checkpoint45a_post
1760    o compute Rho over the whole domain (extend iMin,jMin indices)
1761    o specific exchange for X-slice domain (case Ny=1)
1762    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1763    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1764    
1765    checkpoint44h_post = checkpoint45
1766    o Fix to restore differentiability:
1767      place at which packages_init_variables is called in
1768      initialise_varia is crucial for reverse control flow.
1769    o modifications in GMRedi to enable stable adjoint
1770      (corresponding modif's in thermodynamics, dynamics)
1771    o added missing hook for sponge layer code in external_forcing
1772    o modified test cost functions
1773    o storing in gad_advection (plus removal of write(0,*)!
1774    o missing headers TR1.h added in convective_adjustment routines
1775    o errorMessageUnit set non-equal zero in eeboot
1776      (conflict on some platforms, e.g. IBM SP3)
1777    o modified carbon verif.
1778    
1779    checkpoint44h_pre
1780    o vertical grid option: allow to put the Interface at the middle between
1781      2 cell-centers ; replace delZ in pkg/kpp by drF.
1782    o GM Advective form: Tracers are advected using the residual transport (=
1783      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1784    
1785    checkpoint44g_post
1786    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1787      results) ; ifdef missing in thermodynamics.F
1788    
1789    checkpoint44f_pre,checkpoint44f_post
1790    o added PTRACERS package
1791      This allows an arbitrary number of passive tracers to be integrated
1792      forward simultaneously with the dynamicaly model.
1793      + Implemented so far:
1794        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1795        - I/O and checkpointing
1796        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1797      + Not implemented so far:
1798        - KPP
1799        - OBCS
1800      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1801        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1802        line in data.pkg.
1803      + This package is disabled by default since it increases storage.
1804    
1805    
1806    o testscript: added -cleanup option
1807    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1808                 b) enable to filter 2D fields.
1809    
1810    checkpoint44e_pre,post
1811    o re-wrote convective adjustment to use pre-calculated weights
1812      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1813      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1814      Original calls to convect() still in place.
1815    
1816    chkpt44d_pre,post
1817    o added missing EXCLUDE_MONITOR flags
1818    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1819      (incompatible typ in MIN/MAX expressions caused problems
1820      on IBM SP3)
1821    o in genmake added variable MAKEDEPEND
1822      plus resetting for case SunOS
1823    o added timer_stats.c routine for IBM SP3
1824    o removed variables in dynamics
1825    !!! I forgot to create tag chkpt44d_pre !!!
1826    !!! But chkpt44d_pre = chkpt44c_post    !!!
1827    
1828    o real fresh water flux implemented with non-linear free-surface.
1829    
1830    chkpt44c_pre,post
1831    o few fix (mask in shap_s2, EmPmR in external_field_load,
1832      USE_NATURAL_BCS in solve_for_P);
1833    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1834    
1835    checkpoint44b_pre/_post
1836    o merge of relevant stuff from the ecco-branch:
1837      - genmake: removed $S64 overwrite for case SunOS
1838      - pkg/exf: update and corrections for field swapping and obcs
1839      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1840                  harmonized between ECCO and MITgcm
1841      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1842                      updated checkpointing_lev... lists for obcs
1843      - model/src: minor changes in forward_step, plot_field
1844                   added directive for divided adjoint in the_main_loop
1845      - pkg/mdsio: added mdsio_gl_slice
1846    
1847    o check parameters & config (chkpt44a_pre,post)
1848    o OBC and NonLin_FrSurf.
1849    
1850    checkpoint44
1851    o fix bug in mom_vi_del2uv
1852    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1853    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1854    o update AIM experiments (NCEP input files)
1855    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1856    o added some stuff for AD
1857    
1858    checkpoint43
1859    o added two new advection tests
1860    o added global 4x4 degree ocean test
1861    o added test of H&S94 with free surface on cube
1862    o some final mods for gradient check, adjoint,...
1863    
1864    checkpoint42
1865      Fixed AD-related problems:
1866    o Store directives up-to-date with re-arranged Adams-Bashforth
1867      (mainly thermodynamics.F)
1868    o New store directives for multi-dim. advection schemes
1869      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1870      * new common block and key passkey
1871      (mainly gad_advection.F)
1872    o Modified store directives for split of dynamics/thermodynamics
1873      for the case ALLOW_KPP
1874    o Cleaned argument list for timestep_tracer.F
1875    
1876    checkpoint41
1877    o re-formatted/added comments in prologues of key subroutines
1878      to work with protex
1879    
1880    checkpoint40
1881    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1882    o added FLT (floats) package from Arne along with demo. experiment
1883    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1884      implementation of forward-in-time forcing terms
1885    o more mods for non-linear free-surface including new variable
1886    o modified multi-dim method to work on cube
1887    o bug fix in KPP (from DM)
1888    
1889    checkpoint40pre9
1890    o added DST advection schemes
1891    o fix MPI bug on SGI's
1892    o modifications for non-linear free-surface
1893    o fixed conditionals for fixed flow/passive tracer only mode
1894    o added tension/strain form of stress tensor
1895    o changes to commenting of arguments for TAF/TAMC
1896    o added/updated many matlab scripts
1897    o added multi-dimensional advection method for tracers
1898      
1899    checkpoint40pre8
1900    o new package rw/
1901      Added method for dumping intermediate local arrays:
1902      mdsio_writetile - same as mdsio_writefield except works from inside
1903                        bi,bj loop
1904      mdsio_writelocal - same as mdsio_writetile except works for local
1905                         arrays
1906      write_local_r? - higher-level wrapper for mdsio_writelocal
1907      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1908      Example given at end of mom_vecinv.F that dumps some local arrays.
1909    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1910      control flux-form versus vector invariant code.
1911      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1912      or genmake -DISABLE ...
1913    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1914      (additional storing is now needed for case vecinv;
1915      currently nothing implemented to switch this storing off
1916      in case fluxform is used since no CPP flag available).
1917    
1918    checkpoint40pre7
1919    o bug fix in dynamics.F
1920      calc_viscosity called before k=1,Nr loop.
1921    o added some #ifdef's ALLOW_PASSIVE_TRACER
1922    o cleaned initialisations in ctrl_map_ini
1923      related to TAF
1924    
1925    checkpoint40pre6
1926    o split dynamics into thermodynamics & dynamics
1927    o corresponding split of calc_diffusivity into
1928      calc_diffusivity, calc_viscosity
1929      (kpp_calc_diff, kpp_calc_visc).
1930    o Added diffkr, kapgm to control variables
1931    o bug fix in gmredi_slope_limit for ldd97
1932    
1933    checkpoint40pre5
1934    o proper initialization of Adams-Bashforth time stepping
1935      + uses forward step for very first step of model (iter=0)
1936    o re-generated *all* output since almost all output is modified by this
1937      change (sorry but we've been putting this one off for about 2 years)
1938      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1939        *not* regenerated since they are already out of date and I don't
1940        want to create the impression that they are suddenly working.
1941    o removed KAP stuff for DEC's
1942    o modified/added many .cvsignore files in */code and */input
1943    o added new expt "solid-body.cs-32x32x1"
1944      + this uses an alternative form of ini_curvilinear_grid.F which
1945        is not necessarily any better than the current one...
1946    
1947    checkpoint40pre4
1948    o added re-initialisations of utrans,vtrans,rtrans in
1949      calc_common_factors which are crucial for TAF.
1950    o extended iMin,jMin range for calc_common_factors,
1951      calc_diffusivity
1952    o added option ALLOW_PASSIVE_TRACER
1953    o a few minor updates and fixes
1954    
1955    checkpoint40pre3
1956    o created calc_gtr1.F for gad package
1957    o split the_main_loop and re-introduced forward_step
1958    o some recomputations of nIter0 for TAMC
1959    
1960    checkpoint40pre2
1961    o Updated to latest branch of AJA, JMC
1962    o Added gradient check package
1963    o Added routines for passive tracer handling
1964    o Added carbon sequestration sensitivity experiment
1965    
1966    checkpoint39
1967     o Modifications and fixes to support TAMC
1968       (mainly missing or wrong directives)
1969     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1970       in addummy_in_stepping
1971     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1972     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1973     o Included following packages:
1974       cal: calendar
1975       exf: external forcing
1976       ecco: essential routines to control use of cal, exf
1977             (NB: this is not the full ECCO environment)
1978     o disabled some packages by default in genmake
1979    
1980    checkpoint38
1981     o see notes_c37_adj.txt
1982     o corrected wrong layer index in external_forcing_t
1983     o replaced the_main_loop/forward_step by the_main_loop
1984     o removed forceoutput from write_state
1985       (replaced criteria for initial/final state)
1986     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1987    
1988    checkpoint37
1989     o mdsio.F routine split and packaged in pkg/mdsio
1990       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1991        used unless genmake -disable=mdsio)
1992     o allow a more precise surface-geopotential gradient for the atmosphere
1993       taking into account the change in space of Alpha (=1/rho) at the surface.
1994     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1995       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1996     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1997       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1998       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1999     o Time-Average diagnostics defined as a pseudo package "timeave".
2000     o pickup files : old pickup (before c35) did not work with new code (c35
2001       and after) unless activating 2 commented lines in initialise-varia.
2002     o Non-Hydrostatic pickup file Pb fixed.
2003     o bug with Rigid-lid version (since c35) fixed.  
2004    
2005    checkpoint36
2006     o implement Crank-Nickelson barotropic time-stepping
2007     o recover Time-Average diagnostics
2008     o fix Pb in checkpoint (PR#19)
2009     o AIM become a standard package ; clean unused CPP_kees
2010    
2011    checkpoint35
2012     o subtantial rewrite of dynamics.f
2013     o allows staggered time-stepping
2014     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2015     o added bottom drag (linear + quadratic)
2016    
2017    checkpoint34
2018     o Modified exchange routines for correct reverse simulation.
2019     o Added verification output to comply with bug fix in impldiff.F
2020       as of c33 (exp2, natl_box).
2021     o Corrected store directives in dynamics.F
2022     o Corrected array boundaries in impldiff.F
2023     o Corrected array dimensions in gmredi.
2024       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2025     o Added routine GLOBAL_SUM_INT to global_sum.F
2026     o Added mdsio_gl.F for ECCO purposes.
2027    
2028    checkpoint33
2029     o Fixed bug in lower BC in impldiff.F
2030     o Fixed confusion about units of forcing arrays in FFIELDS.h
2031       namely Fu,Fv,Qnet,Qsw,EmPmR:
2032       - Removed verification/natl_box/code/external_fields_scale.F
2033         (did not differ from that in model/src)
2034       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2035         (see FFIELDS.h for description)
2036       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2037         kpp_calc.F and kpp_transport_t.F
2038       - Removed model/src/external_fields_scale.F and calls to it
2039       - verification/natl_box uses flux data with "atmospheric" sign so
2040         a special version of external_fields_load.F is used to
2041         change the data as it's read in. This way, the arrays
2042         have the right units and signs at all times tha a user could
2043         possibly use them.
2044     o Corrected genmake to delete a temporary file during configuration
2045    
2046    checkpoint32
2047     o Scaling of forcing fields moved from external_forcing.F to
2048       external_fields_scale.F, called directly after loading fields.
2049     o Surface relaxation terms added to surface tendency fields in
2050       extra subroutine.
2051     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2052       fields.
2053     o Changes in GMRedi to comply with packaging structure.
2054     o Modifications and bug fixes in KPP package.
2055     o Verification experiment for KPP added (verification/nat_box/)
2056    
2057    checkpoint31
2058     o Packages interface brought in line with defined standard
2059       -> new routines packages_...F
2060       -> changes in initialise_fixed.F, initialise_varia.F
2061       -> enables initialisation interface for ECCO package
2062     o Rescaling of external forcing fields immediately after read
2063       (removed from external_forcing.F)
2064       -> new: surface_fields_scale.F
2065       -> affects ini_foorcing.F, external_fields_load.F
2066     o Computation of surface tendencies before tendency updates.
2067       -> new: external_forcing_surf.F
2068     o Change of variable names useGMRedi, useKPP, useECCO
2069     o Further changes in dynamics.F, impldiff.F for TAMC
2070     o Tested for experiments 0, 2, 4.
2071       - not yet tested for GMRedi.
2072       - not yet tested for KPP.
2073    
2074    checkpoint30
2075     o Updates for OBCs
2076     o New experiment for test OBCs (internal_wave)
2077     o New output.txt in verification/exp4/results/
2078     o Updates for KPP: calculation of viscosity corrected, new variables
2079       kpp_dumpFreq and kpp_taveFreq
2080     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
2081       and entry for T90 in genmake
2082    
2083    checkpoint29
2084     o packaged KPP and GM/Redi
2085    
2086    checkpoint28
2087     o Corrected initialization of hFacMin for difference vertical coordinates
2088     o Modified calculation of partial cell thickness to more robust algorithm
2089     o config_summary.F: replaced write_1D_... by write_0D_...
2090       read_write.F: added subroutines write_0D_...
2091     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
2092       included some initialisations required for TAMC.
2093     o routine calc_isoslopes: modified sqrt computation to make it
2094       differentiable for zero argument.
2095     o routines dynamics, impldiff:
2096       included store directives and tape key computations required for TAMC.
2097     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
2098    
2099    checkpoint27
2100     o fixed calc_isoslopes() to so that cancellation of terms in tensor
2101       formulation works properly with variable resolution.
2102     o restructured the calling tree between the_model_main() and dynamics()
2103     o split initialise() into initialise_fixed() and initialise_varia()
2104     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
2105       in new routine ini_psurf()
2106    
2107    checkpoint26
2108     o moved some #ifdef in optional routines to encompass everything
2109       except the argument declarations. This was using up some memory.
2110     o fixed macros like _ADT to work with both versions of Linux cpp
2111     o cleaned up some unused and uninitialized variables
2112       (helps when debugging with strict compile options)
2113     o split up CPP_EEOPTIONS.h into options and macros
2114       (macros are now in eesupp/inc/CPP_EEMACROS.h)
2115     o patch for 2 processor JAM mode
2116    
2117    checkpoint25
2118     o updates for OBCs and NH
2119     o dramatically reduced memory usage
2120     o added "JAM" routines for use on Artic network
2121     o parameterization of convection by implicit vertical diffusion
2122     o added a diagnostic of convective index
2123     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
2124       (this is was partly for OBCs and NH but also in anticipation of
2125        an explicit free-surface option)
2126     o initial state input files for U and V
2127    
2128    checkpoint24
2129     o Removed some spurious "REAL"s
2130     o Updated KPP to latest version from JPL
2131     o Added a COS(latitude) in horizontal viscosity
2132    
2133    checkpoint23
2134     o Added del^4 diffusion for salt and temperature
2135     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
2136    
2137    checkpoint22
2138     o Made many small changes: implicit none, format(i5), etc...
2139     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
2140    
2141    checkpoint21
2142     o Introduced new I/O package that supports direct-access records (mdsio.F)
2143     o Split-up mid-level I/O routines
2144     o Updated input data for experiments 0,1,2,4 and 5
2145     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
2146    
2147    checkpoint20
2148     o Tidied up open-boundaries some more
2149     o Added non-hydrostatic code
2150     o Fixed some input data
2151     o Modified MPI start-up to work in "coupled" context.
2152    
2153    checkpoint19
2154     o Tidied up directory structure for verification experiments.
2155     o Added new code for open boundaries.
2156     o Corrected advective terms near boundaries.
2157     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
2158     o Implemented free-slip/no-slip BCs and del^4 dissipation.
2159     o Split default parameters out of ini_parms.F into set_defaults.F.
2160    
2161    checkpoint18
2162     o Further changes for optional code generation with
2163       CPP - ugh!
2164    
2165    checkpoint17
2166     o Beginning to incorporating modularity
2167       for supporting atmos. and ocean configs.
2168     o Small changes for TAMC complinace
2169     o New ultra simple test case. Barotropic box
2170       configuration "exp0".
2171    
2172    checkpoint16
2173     o Minor changes to exchange routines to support
2174       accumulation in reverse mode. Adjoint of an
2175       assignment is an addition.
2176     o Changes to support compilation by TAMC (LR(1)
2177       syntax) and by g77 under Linux ( 72 character
2178       limit ).
2179    
2180  checkpoint15  checkpoint15
2181   Rewrote exchange routines to allow   Rewrote exchange routines to allow
2182   o General tile <-> tile connectivity.   o General tile <-> tile connectivity.

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