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revision 1.60 by jmc, Sun Feb 10 20:07:14 2002 UTC revision 1.437 by jmc, Thu Jan 27 14:11:44 2005 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint57c_pre
7    
8    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
9      update output.txt of exp. global_ocean.90x40x15
10    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
11      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
12    o add saltFlux(+File) forcing capability with periodicExternalForcing
13    o allow to use pkg diagnostics for GM-Redi & ThSIce output
14    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
15    o improvements for the MNC output from DIAGNOSTICS:
16      - correct handling of the unlimitied dimension
17      - all dims now have associated coordinate variables
18      - variables located at U, V, and Corner ("Z") points are now written
19        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
20        *all* data points are output
21    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
22    o added pkg/seaice/seaice_monitor.F
23    o mdsio_readfield.F can now read files visible only to master MPI process.
24    o pkg/seaice: some test code for ice-modified ocean stress
25    o exf_getffields interpolation defaults to bilinear for all scalar forcing
26      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
27      spurious negative numbers for precipitation and humidity.  Will cause
28      some small numerical differences for integrations using pkg/exf/exf_interp.F.
29    o pkg/ctrl/
30      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
31        May be enabled via doPackDiag
32      *  introduce z-scaling of
33         + gradient (doZscalePack) and
34         + control (doZscaleUnpack)
35    o pkg/mdsio/
36      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
37      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
38    
39    checkpoint57b_post
40    o simplify options in diagnostics_fill arguments (remove weird combinations)
41    o fix MNC coordinate variables so that they now contain per-face index
42      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
43      general, EXCH2 grids are only aligned to a "local" coordinate system
44    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
45    o Implement instantaneous output within pkg diagnostics:
46      setting a negative frequency in data.diagnostics produces
47     "snap-shot" output (as opposed to time-average if freq > 0)
48    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
49      NOTE: change ptracer diagnostics name: use 2 characters to work with
50            more than 9 tracers. Add also diagnostics of advect & diffus flux.
51    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
52      becomes the coordinate variable for the 'T' dimension
53    o add CF-style coordinate variables to MNC
54      - just a first cut:  numbers are meaningless on the cubesphere and
55        missing along the T axis but otherwise it works!
56    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
57    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
58    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
59      this is based directly on what the model compute, so that the content of
60      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
61    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
62    o clean up build options files for SunOS, in particular
63      - remove -traditional from xmakedepend
64      - change -xarch=v9 to -xarch=native for f77
65      - restore use of make (not gmake)
66      - add CC=gcc if using g77
67    o changes per discussion of AM, JMC, & EH3 today:
68      - move redundant "grid" variables out of "state" -- in preparation of
69        creating proper CF-style coordinate variables and in recognition
70        that any/all grid variables can be easily copied (eg. w/NCO) from
71        the grid files into any of the other NetCDF files
72      - *always* output grid variables with MDSIO (this will eventually be
73        changed)
74      - output MNC grid file if useMNC is true
75    o every instance of _END_MASTER() has been found and replaced with
76      _END_MASTER( myThid ) in order to satisfy certain picky Sun
77      preprocessors
78    o re-arrange diagnostics pkg initialisation:
79     - allow each package to extend the available diagnostics list
80     - add some checking and fix small problems (multi-threaded, ...)
81     - new S/R diagnostics_fill (replace fill_diagnostics):
82       look through the short list of active diag. (instead of the long list)
83       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
84    
85    checkpoint57a_post
86    o this set of changes restores TAMC compatibility
87      tested for global_ocean.90x40x15 adjoint on trough
88      (what a pain)
89    
90    checkpoint57a_pre
91    o some modifs in tools/build_options for sunos
92    o call ctrl_pack for ctrl at end for optimcycle=0
93    
94    checkpoint57
95    o add horizontal bi-harmonic viscosity for vertical velocity
96      - new parameter viscA4W (defaults to viscA4)
97      - affects only non-hydrostatic code
98      - to be done: no-slip lateral boundary conditions
99    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
100    o implement Implicit Vertical advection for pTracers
101    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
102      (implemented also for implicit vertical diffusion & advection)
103    o OBCS: extend application of tracer open boundary conditions
104      to a strip beyond the boundary of width Olx/Oly
105    o add call monitor to TAF set of required calls (flow directives)
106      and include in natl_box_adjoint
107    o untangle a few ifdefs related to cost, ctrl, autodiff
108      untangel a few ALLOW_ECCO_OPTIMIZATION
109    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
110      (theta2, salt2 in ecco_cost_weights)
111    
112    checkpoint56c_post
113    o OBCS as control variables
114      - update ctrl_ad_diff.list, obcs_ad_diff.list
115      - remove balance of obcs controls from default
116      - fix index bug nobcs in ctrl_init
117      - fix dummy fields filen in ctrl_pack
118      - add dummy weights for obcs
119    o lsopt: comment out fort.94 output
120    o optim:
121      - remove unnecessary header files
122      - adjusted namelists
123      - add xerbla.F to Makefile
124    o exf:
125      - multiple modifications of exf_check_range
126      - unit change in exf_init_runoff from [m/year] to [m/s]
127    o mdsio:
128      - i/o-vector change debugLevel from debLevA to debLevB
129    
130    checkpoint56b_post
131    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
132      is called from DO_THE_MODEL_IO
133      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
134      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
135      - clean up PTRACERS_WRITE_TIMEAVE a little
136    o add another verification experiment that tests both the cfc-pkg and
137      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
138      reactive tendencies treated inline with regular timestepping
139    o testreport previously did a lousy job of comparing small numbers, so
140      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
141      implemented in the little c-progam tmp_cmpnum.c which is embedded in
142      testreport.
143    o ptracers_monitor: bug fix for MPI
144    
145    checkpoint56a_post
146    o GCHEM: finish reorganizating the package
147      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
148        (introduces another 3D-array for each passive tracer, but only if
149        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
150        gchemTendency is not needed because the timestep is done separately)
151      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
152      - GCHEM is now---more or less cleanly---separate from PTRACERS
153      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
154        so clear to me how that should be done in a general way.
155    o CFC: improve formatting of output in CFC_ATMOS
156    o PTRACERS:
157      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
158        that ALL experiments with ptracers enable can be checked. This makes
159        GCHEM_MONITOR obsolete.
160      - include a runtime parameter PTRACERS_monitorFreq that defaults to
161        monitorFreq
162      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
163    o add PTRACERS (PTR0[1-5]) to testreport output
164    o exf_check_range:
165      * default changed to .TRUE.
166      * will check values for niter0 if debLevA, every timestep if debLevB
167      * STOP in exf_check_range if 'out of range'
168      * range chosen generous to allow for potential extema
169      TBD: a version with stricter range
170           permitted range would be runtime parameters
171    o GMredi:
172      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
173      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
174      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
175    o GCHEM:
176      - move call to GCHEM_FORCING_SEP, so that it is now called before
177        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
178      - introduced a useGCHEM runtime flag and applied it everywhere.
179      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
180        this flag is now only visible within GCHEM-pkg routines.
181      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
182        be replaced by a 3D array that is computed before thermodynamics; for
183        this, the tracer ID iTracer had to be included into the parameter list
184        of ptracers_forcing
185      - set up forward_step to call gchem_forcing, that will replace
186        gchem_forcing_int in ptracers_forcing
187      - cleaning up
188    o small cleaning of exch2: remove files that are also in eesupp/src
189    
190    checkpoint56
191    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
192    o mnc: cleanup "full" files--fixes out-of-memory problem
193    o ECCO-GODAE
194      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
195      * fully merged and updated from SIO code
196        windstress sign change affects
197        - exf_inscal_[u/v]stress
198        - sign of xx_tau[u/v] adjustments
199        - signs in cost_scat
200      * ctrl_get_gen: avoid update of tau[u/v] for first few days
201      * natl_box_adjoint updated and compressed
202      * 2-level checkpoint switch added
203        (tested in EXP. 1 of natl_box_adjoint)
204      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
205    o SVD
206      * first complete, non-hacked version for SVD calculations
207      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
208        performed via direct access files admtlm_vector.it????
209        (via ctrl_[un]pack)
210      * optimcycle is used for ARPACK iteration counter
211        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
212      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
213        and add linear transforms where necessary
214      * controls are initial/final SST, SSS (can be extended; need to check
215        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
216    o mdsio: filename info to both stderr, stdout
217    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
218      from sign change
219    
220    checkpoint55j_post
221    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
222      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
223    o add consistent build directories and .cvsignore files to verification
224    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
225    o make all subroutines 30 or less characters in length for certain older
226      compilers to work (a thorough search only turns up two routines in
227      pkg/ptracers)
228    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
229      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
230    
231    checkpoint55i_post
232    o change arrays for total vertical diffusivity (2.D if explicit,
233      3.D if implicit) ; each ptracer uses its own background value.
234    o added mnc/NetCDF output capability to ocn_compon_interf
235      - added bits to verification/cpl_aim+ocn so that it can run on
236        ITRDA and other clusters without the mpirun "-wd" option
237    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
238      configuration
239    o give MNC the ability to create additional files rather than
240      exceeding a specified file size limit "MNC_MAX_FILESIZE"
241      - the default is just less than 2GB which is a practical limit
242        on many systems
243    o Compute the non-local term using either KPP vertical diffusivity (=default)
244       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
245    
246    checkpoint55h_post
247    o add verification test "vermix"
248    o remove all the *_ioinc flags and replace with the single global
249      outputTypesInclusive flag
250    o allow to set a vertical profile of vertical diffusivity for T & S
251    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
252    o useMNC moved from data.mnc to data.pkg
253    
254    checkpoint55g_post
255    o Renaming carbon AD experiments to comply with testreport conventions
256    o Updating adjoint of Held-Suarez hs94.1x64x5
257    o Fixing directives for non-ECCO forward_step, after ECCO directives
258      have been fixed to avoid recomp. of do_oceanic_phys
259      Works well for global_ocean.90x40x15,
260      but recomp. issue remains for carbon
261    o Updating adjoint output for natl_box_adjoint after
262      pkg/ecco has been modified (see taga c55d_post)
263    
264    checkpoint55f_post
265    o rename to timeave_init_fixed
266    
267    checkpoint55e_post
268    o some delicate re-shuffle of store directives to avoid one
269      extra call of do_oceanic_physics
270      affects ecco_the_main_loop.F, do_oceanic_physics.F
271      checkpoint_lev1_directives.h
272    o NB: this may break global_ocean adjoint temporarily,
273      but it is clear how to fix it. Will do later, need this now.
274    
275    checkpoint55d_post
276    o ECCO specific cost function terms (up-to-date with 1x1 runs)
277    o ecco_cost_weights is modified to 1x1 runs
278    o modifs to allow observations to be read in as
279      single file or yearly files
280    o enable to read exf forcing fields as either
281      single file or yearly files (flag useExfYearlyFields)
282    checkpoint55d_pre
283    
284    o switch between 2-level and 3-level checkpointing
285    o add ability of MNC to write local and "partial" (eg. 2D slices where
286      the full 3D field is never actually stored) arrays to NetCDF files
287      with the correct (that is, the complete multi-dimensional) set of
288      array indicies
289      - used in mom_vecinv() to write the diagFreq output
290      - tested (demonstrated) in verification/aim.5l_cs
291    o further mnc-ification
292      - add verification/lab_sea to the list with mnc setups
293      - fix undefined mnc v-names in cd_code
294      - add kpp to mnc output (both snapshot and timeave)
295    o non-hydrostatic code
296      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
297        in calc_gw.F
298      - defaults to viscAh
299      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
300        friction or Leith) in non-hydrostatic mode, as long as there is
301        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
302    o pkg/cost
303      extend simple cost functions to treat time mean quantities
304      (T,U,V) via cost_accumulate_state from cost_tile
305    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
306        be 2 times larger than the minimum size the advection scheme requires.
307        now get a perfect conservation of salt in advect_cs test-exp (updated)
308    o GGL90 (Gaspar's TKE mixed layer)
309      - add horizontal diffusion of TKE, requires exchanges in
310        do_fields_blocking_exchanges, horizontal diffusivity is zero by
311        default. In OPA there is no horizontal diffusion of TKE but the
312        mixing coefficients are computed from a horizontal average of TKE of
313        6 points or so. I think that diffusion has a little more physical
314        justification.
315      - clean up ggl90_calc in the hope of reducing memory usage (this hope
316        was in vain)
317      - mask tke-variable in ggl90_init
318    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
319    o fix biharmonic diffusion on CS-grid.
320    o more obcs stuff
321      - added obcs_external_fields_load as an alternative to the EXF-pkg option
322        for reading boundary values. This routine is called from
323        obcs_prescribe_read
324      - updated obcs_check
325      - changed sponge layer relaxation parameter units for days to seconds
326      - turned off sponge layer by default
327      - changed argument list of OBCS_CALC to myTime+deltaTclock
328      - fixed about 35 bugs in obcs_external_fields_load
329    
330    checkpoint55c_post
331    o obcs stuff
332      - new runtime flags useOBCSprescribe, useOBCSbalance
333      - re-arranged obcs_calc
334      - moved exf_getobcs to obcs_prescibe_read
335        obcs_prescibe_read is called after ORLANSKI stuff
336        and independent of it (executable can contain all).
337      - updated obcs_check
338      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
339        These may be necessary only if tangential velocities are
340        prescribed at OB, not sure, needs testing.
341    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
342      which simplifies the calls and passes the ifc check-bounds test
343    
344    checkpoint55b_post
345    o add a 2D scalar, Z location, exchange_2 routine.
346    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
347      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
348      affects advect_cs results (for the wrong reason): update output.txt
349    o use a more standard discretization for biharmonic viscosity ;
350     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
351      affects results of dome set-up: update output.txt
352    o fix gad_advection.F (CubedSphere part), back to version 1.23
353    o fix bug in mom_vi_del2uv.F (CubedSphere part).
354    
355    checkpoint55a_post
356    o merged code to
357      * prescribe/read time-dependent open boundaries
358        (works in conjunction with exf, cal)
359      * sponge layer code for open boundaries
360      * each boundary N/S/E/W now has its own CPP option
361        (healthy for the adjoint)
362    
363    checkpoint55
364    o up-to-date adjoint of previous breaks
365      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
366      - global_ocean_ebm: adjoint still needs fix (TLM ok)
367      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
368      - carbon: * remove tr1-related adjoint verification
369                * add ptracer as control variable
370    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
371      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
372    
373    checkpoint54f_post
374    o in verification/carbin/ remove experiment related to
375      ALLOW_PASSIVE_TRACER (array tr1 etc)
376      code_ad/ input_ad/ results_ad
377    
378    o add two new packages
379      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
380        + subject to optimization (memory)
381      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
382        + subject to reordering (many GOTOs in the original code)
383        + so far opps is called for every (i,j) point, and then operates in
384          the vertical; one may want to reorder the scheme in order operate in
385          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
386          fields)
387    o overhaul of IO so that we now have flags for MDSIO and/or MNC
388      - all verification tests compile and run with linux_ia32_g77
389      - defaults are compatible with current input files--nothing
390        should change if you were not previously using MNC
391      - MNC output has been added in numerous places (eg. timeave)
392        but there are still a few writes not yet do-able with MNC
393        (this is in progress)
394      - flags now allow for either/or/both use of MDSIO and MNC and
395        documentation will soon follow
396      - numerous small formatting cleanups for ProTeX
397    o add version info (via BUILD_INFO.h) to MNC and stdout
398    
399    checkpoint54e_post
400    o add two new packages
401      - pp81 (Packanowski and Philander, 1981), Richardson number and
402        stratification dependent mixing
403      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
404      - these scheme operate in a similar manner as KPP (without ghat, of
405        course), however there is only one diffusivity that is used for both
406        temperature and salinity (and passive tracers)ç
407    o add offline package
408    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
409      provided by Stephanie Dutkiewicz
410    o genmake2: add ability to search for C compilers and cleanup test output
411      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
412    
413    checkpoint54d_post
414    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
415    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
416      leading to additional shift by 5 days each year of integration
417       (i.e. leading to considerable offset over the years)
418    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
419    o start with no AB and no initial filtering (staggerTimeStep):
420      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
421    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
422      (external loading & cpl import/export stay in forward_step.F)
423    o update coupling interface to work with new staggerTimeStep
424    o change MDSIO ptracers_pickup.
425    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
426    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
427    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
428    
429    checkpoint54c_post
430    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
431      this affects (truncation error) output.txt of test-exp:
432       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
433    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
434    o change Qnet to always be the net heat flux, (+upward).
435      affects (truncation error) output of natl_box exp.: updated
436    o define the max number of passive tracers in PTRACERS_SIZE.h
437    o start to test mnc routinely in exp0
438    o add sea-ice loading (sIceLoad) as a new forcing field.
439    
440    checkpoint54b_post
441    o add testreport "-j JOBS" option for parallel builds (tested and pretty
442       impressive on Altix and Opteron systems)
443    o diagnostics can now write NetCDF files through the mnc package
444    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
445    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
446    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
447      affects (truncation error) output of lab_sea & natl_box exp.: updated
448    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
449    
450    checkpoint54a_post
451    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
452    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
453    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
454    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
455      + internal_wave (shift in writing cg2d_ini_res)
456    checkpoint54a_pre
457    
458    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
459      - modified verification/lab_sea and natl_box_adjoint accordingly
460    
461    checkpoint54
462    checkpoint53g_post
463    o prepare splitting of thermodynamics: store convect.counter in common block
464    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
465      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
466    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
467    o new parameter "nShapS": allow to treat differently S from T (nShapT)
468    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
469    o restore adjointability
470    
471    checkpoint53f_post
472    o modifications that affect AIM experiment results (update output.txt):
473      - no advection of S at top interface Nr (pkg/generic_advdiff)
474      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
475    o AIM pkg:
476      - include stability function into surf.Flux derivative relative to Tsurf
477      - calculate clear-sky radiation & surface temp. change (for diagnostics)
478    
479    checkpoint53e_post
480    o merged cylindrical coord configuration
481    o added rotating_tank experiment
482    checkpoint53e_pre
483    
484    checkpoint53d_post
485    o faulks upgraded: re-generate output.txt that have changed:
486       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
487    o Added Bryan and Lewis, 1979, vertical diffusivity profile
488    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
489    o added Sadourny discretization of Coriolis
490      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
491      - re-enabled use of omega3 (useAbsVorticity)
492    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
493      vector-invariant equations
494      - note: does *NOT* yet use same variable visc. for no-slip BC's.
495    o recoded the lateral boundary conditions for non-hydrostatic w, this time
496      hopefully without new bugs
497      - still to do: biharmonic friction for non-hydrostatic w
498    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
499    o regenerated output for global_ocean_ebm (using -ieee)
500    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
501      of mom_common/
502      - simple re-arrangement of instructions within computing loop
503    checkpoint53d_pre
504    
505    checkpoint53c_post
506    o new version of coupler for AIM+thSIce and Ocean models
507     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
508     - land: change Evaporation of snow
509     - aim with thSIce: fix bug in snow-precip.
510    o changes to calc_gw.F
511     - bug fix for w^2 term near the bottom boundary
512     - (hopefully) improve the lateral slip boundary condtions for use with
513        partial/looped cells
514      - because the bug fix changes two verification experiments anyway (exp5
515        and plume on slope), change the lateral boundary condition from half slip
516        to the value of no_slip_sides
517    o ebm package wasnt quite up to the parallel task. Fixed that.
518    o Adjoint of EBM package + verification
519      * TLM OK
520      * ADM not sufficient accuracy yet (needs further testing)
521    
522    checkpoint53b_post
523    o Commiting new energy balance model to repository
524      * package is pkg/ebm
525      * verif. is verification/global_ocean_ebm
526      * references are in ebm_driver.F
527    C      * X. Wang, P. Stone and J. Marotzke, 1999:
528    C        Global thermohaline circulation. Part I:
529    C        Sensitivity to atmospheric moisture transport.
530    C        J. Climate 12(1), 71-82
531    C      * X. Wang, P. Stone and J. Marotzke, 1999:
532    C        Global thermohaline circulation. Part II:
533    C        Sensitivity with interactive transport.
534    C        J. Climate 12(1), 83-91
535    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
536    C        Destabilization of the thermohaline circulation
537    C        by atmospheric eddy transports.
538    C        J. Climate 7(12), 1870-1882
539    o Will need long integration testing.
540    checkpoint53b_pre
541    
542    o created pkg/mom_common in preparation for variable viscosity code
543    o renamed and split ini_mnc_io
544    o pkg/land: only liquid water can diffuse or run-off
545    o AIM using land: soil wetness availability account for snow
546    o added printMapIncludesZeros to EEPARMS namelist
547    
548    checkpoint53a_post
549    o restore TAMC compatiility for exf_constants.h
550      (no usage of _d in .h)
551    o Additional storing in KPP in an attempt to fix
552      TAMC problem with adjoint of KPP code.
553      (no success...)
554      Identical code works fine with TAF.
555    o Fixed verification/natl_box_adjoint experiments.
556      Initial conditions for Experiments 4 and 5 are now
557      set to "SEAICE_initialHEFF=0", which is more reasonable,
558      and hence gives results closer to that of Experiment 2.
559      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
560    
561    checkpoint53
562    o stable checkpoint with up to date adjoint
563      TLM tests only run for 1st grdchk at the moment. Its unclear if
564      this is a code problem or a problem with resetting code for g_
565      variables that is being autogenerated wrong.
566      Otherwise:
567       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
568       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
569         are both still in chaos following their security messes.
570    
571    checkpoint52n_post
572    o various build (mostly genmake2) changes including:
573      - ability to build/run more easily within Cygwin and MacOS X
574      - more complicated Makefiles with a stronger dependence on Gnu Make
575    o pkg/seaice modifications
576      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
577        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
578        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
579      - changed proxy for geostrophic velocity and updated
580        verification/lab_sea/results/* accordingly
581      - removed ADI dynamic solver from pkg/seaice
582      - replaced all occurrences of 1/CSTICE or 1/CSUICE
583        they caused a segmentation fault under certain circumstances
584      - removed unused field WATR
585    o bug fix in exf-package:
586      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
587         now reflect that.
588    o small fixes in the cal-package:
589      - set reference date to first of January for the 'model'-calendar
590      - failing of cal_CheckDate in cal_FullDate now actually results in a
591        warning
592    o small modifications in exf-package to increase flexibility:
593      - change climtempfreeze from a constant to a runtime parameter that
594        is specified in data.exf_clim (default = -1.9)
595      - introduce runtime parameter windstressmax (default = 2.0) that is
596        specified in data.exf
597    o fix in pkg/thsice:
598      - update Evap (Tsf changes) to be consistent with Latent heat flux
599      - maintain snow precipitation unchanged (even if Tsf >=0).
600     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
601    
602    checkpoint52m_post
603    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
604      this does not change any of the results, because myIter=0 in swfrac always
605      lead to jwtype=2 (the default anyway), but the call makes little sense
606      as a default
607    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
608    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
609      atmospheric model (AIM) to use it ; add a "slab ocean" component.
610    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
611    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
612    o extending useSingleCpuIO option to work with new exch2 I/O format
613      - old-style, missing-tile I/O is still accessible by defining CPP
614        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
615    o monitor package can write to NetCDF files and/or STDOUT
616    o fix re-definition bug in MNC_GRID_INIT_ALL()
617    o doc/api_reference added
618      - a framework for building an API Reference Manual using all
619        the "protex" comments embedded in the code
620      - see pkg/generic_advdiff, pkg/mnc for examples
621    o MNC:
622      - make myThid the last argument for all subroutines
623      - new default for the grid files: NO halos
624      - add useMNC and other run-time flags
625      - separate per-file-group handling of the unlimited dimension
626      - early initialization of MNC w/ flags read at the eeboot stage
627        and lookup tables set in initialize_fixed
628      - write all MNC output to a freshly-created directory
629    o thermodynamics sea-ice (thsice) is now tested with testreport.
630    o test exp. advect_cs: use the standard cs32 grid ; update output.
631    o Added functionality to grdchk:
632      pick global i,j,k position (or nearest wet) where to perform check.
633    
634    checkpoint52l_post
635    o new land formulation:
636      a) use ground enthalpy as prognostic variable to ensure exact
637         energy conservation.
638      b) account for water temperature and for latent heat of freezing
639         in all processes (rain, run-off, ground storage)
640      c) compute surface and ground temperature implicitly.
641    o aim_v23 modification for new land model:
642      a) Treat separately land / ocean / sea-ice surface fluxes
643         to allow implicit computation of land & sea-ice surface temp.
644      b) add snow precipitation.
645    checkpoint52l_pre
646    
647    o fix problem (when 1 tile is empty) in min/max monitor.
648    o fix bug in timeAve (u,vZetatave in common block)
649    o no restoring terms under ice for pkg/seaice
650    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
651    o bug fix for pkg/seaice pickups
652    o change MNC call locations and add coordinate attributes
653    o mask vorticity at the corner ; affects global_ocean.cs output
654    o fix ini_curvilinear_grid ; test CS experiments with mpi
655    o aim.5l_cs: modify sea-ice fraction input file ; update output
656    o exf: Adding simple range check routine for exf fields after read
657    
658    checkpoint52k_post
659    o removed top-level directory "diags"
660      - we migrated these functions to pkg/timeave a long time ago
661    o fixed bug introduced in pkg/monitor
662    o accuracy ctrlprec = 32 insuffient for gradient checks using
663      averaged fields (I/O via cost_averages)
664      -> use ctrl.h in active_file*.F to control I/O precision.
665    o paramter list of CALL ADTHE_MAIN_LOOP
666    o added initial do_the_model_io to ecco
667    o set all ...Freq to zero after cost_final
668      taveFreq, dumpFreq, pChkptFreq
669    o MAIN and ECCO differentiability restored
670    
671    checkpoint52j_post
672    o fix nchklev in tamc.h for global_ocean...
673    o Bringing flow and store directives up-to-date
674    o Really weird thing!
675      call do_the_model_io from the_main_loop with parameters
676      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
677      TAF places a faulty re-call of initialise_varia
678      after cost_final call which should not be there!
679    checkpoint52j_pre
680    
681    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
682      error messages
683    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
684    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
685      debug output
686    o modfied mdsio_writefield.F to handle non-global files under exch2
687    o update AIM Cubed-Sphere exp (aim.5l_cs):
688      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
689    o update AIM Equatorial Channel exp:
690      use standard aim_v23 pkg and change the SST fields to be more realistic.
691    o globalFile now works with exch2
692    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
693      mon_vort3.F to make exch2 friendly with >1 tile per cube face
694    o limit timeave output for hi-res integrations
695    
696    checkpoint52i_post
697    o removed CPP_EEOPTIONS.h from verification/*/code
698    o updated the tiling for global_ocean_pressure
699    checkpoint52i_pre
700    
701    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
702      the old pkg/aim).
703    
704    checkpoint52h_pre
705    o shortened offending lines in exch2_send_rx?.template
706    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
707    o genmake2: add build & execute test for NetCDF code
708    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
709      old grid files, moved CPP_EEMACROS.h to pkg/exch2
710    o added useSingleCPUIO flag to monitor.F and mon_out.F
711    o added temporary hack for sea-ice dynamics on the cube:
712      metric terms are ignored and it is assumed that
713      there is no sea-ice on cube faces 1, 2, 4, and 5.
714    
715    checkpoint52f_post
716    o added exch2 cube routines to pkg/exch2
717    o modified hs94.cs-32x32x5 to use it
718    o added new grid files to hs94.cs-32x32x5
719    checkpoint52f_pre
720    
721    checkpoint52e_post
722    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
723      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
724    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
725      to work with implicit vertical advection and AB ;
726    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
727    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
728     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
729    checkpoint52e_pre
730    
731    o fix bug in impldiff when Nr=1 or Nr=2.
732    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
733    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
734    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
735      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
736    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
737    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
738    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
739    
740    checkpoint52d_post
741    o re-tiled many expts to allow comparison in multi-processor mode
742      - updated output accordingly
743      - changed hs94.128x64x5 to use intial T from file rather than use the
744        random number generator
745    o add infrastructure in model routines for fizhi and gridalt packages
746    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
747    o changes to permit hi-res, cubed-sphere, configuration
748      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
749      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
750      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
751        of surface winds for the cube
752      (A verification experiment, based on global_ocean.cs32x15, but with
753       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
754       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
755       complete with example surface forcing files and matlab scripts to look
756       at the output and compare it with that of global_ocean.cs32x15.)
757    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
758       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
759       to conform to the common rule.
760    o check-in the first version of the coupler + interfaces for multi-components
761       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
762       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
763       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
764       - ocean and atmos. share the same horizontal grid (no interpolation).
765       - exchanges between component and coupler is done in forward_step
766    o new verification experiment, cpl_aim+ocn:
767       coupled ocean - AIM atmosphere on cs32 grid.
768    
769    checkpoint52d_pre
770    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
771    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
772    
773    checkpoint52c_post
774    o Fixing OPTIONS files for use of exf:
775      - ALLOW_ECCO not needed
776      - ECCO_CPPOPTIONS.h should not be included from
777        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
778        as has been the case in the past
779      - All cal/exf related options are currently set in
780        single header file. Should remain so until we
781        agree on a consistent new policy.
782    o Removed all CPP options for cal package.
783      cal has no more CPP options.
784    o modified STOREs in GAD_ADVECTION
785    o corrected key comp. for passkey
786    
787    checkpoint52b_post
788    o new version: "thsice" of thermodynamic sea-ice pkg:
789     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
790     - modify fluxes but do not change theta directly;
791     - light cleaning of bulk_force pkg (still needed with thsice).
792     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
793       + output_thsice.txt to test thsice & bulk_force pkgs.
794    o put back grid & coriolis monitor output.
795    checkpoint52b_pre
796    
797    o call "do_the_model_io" at the beginning (=> dump initial state)
798    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
799    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
800      (need info on NUMBER_OF_PTRACERS)
801    o missing PTRACERS headers in some routines
802    o default tamc.h in pkg/autodiff supposed to crash
803      to ensure proper customization
804    
805    checkpoint52a_post
806    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
807      - moved surfaceTendencyTice from pkg/seaice to main code
808      - subroutine FREEZE_SURFACE now limits only surface temperature
809        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
810        => new output.txt for global_ocean.cs32x15 & global_with_exf
811      - keep the old version of FREEZE for backward compatibility;
812        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
813      - corresponding modifs for TAF directives
814    o added surface flux output variables to TIMEAVE_STATVARS
815    o time-averaged output for pkg/ptracers
816    o fix problem with ECCO-related divided adjoint
817      snapshot file was missing some ad-variables,
818      but no warning issued by TAF
819    
820    checkpoint52a_pre
821    o some bug fixes for #undef REAL4_IS_SLOW
822    
823    checkpoint52 = ecco_c52_e35
824    o after testing adjoints of checkpoint51u_post
825    
826    checkpoint51u_post
827    o this is the post-merge tag of the ecco-branch
828      (needs another clean checkout and re-testing)
829    o various natl_box_adjoint configs and results
830      but no input fields
831    o obcs adjoint not yet merged!
832    o adding ECCO global 1x1 and 2x2 degree configs
833    o updated/extended some store directives for seaice
834    o pkg/ecco now containes ecco-specific part of cost function
835    o top level routines the_main_loop, forward_step
836      supersede those in model/src/
837      previous input data.cost now in data.ecco
838      (new namelist ecco_cost_nml)
839    o in ctrl/ cleaned some cross-dependencies and updated CPP options
840    
841    checkpoint51t_post
842    o this is the pre-merge tag of the ecco-branch
843    
844    checkpoint51s_post
845    o cleanup: removed various obsolete #define-s
846    o pkg/grdchk
847      - renamed 'ph-grd 3' to 'grad-res'
848      - merged from ecco-branch
849        (remaining bug fixes for obcs gradient checks)
850      - additional high-precision output for testreport
851        (grep for 'precision_grdchk_result')
852    
853    checkpoint51r_post
854    o cleaned up or removed CPP_OPTIONS.h files
855    o updated results for some of the tests to reflect the new
856      optfiles (-ieee: -O0 instead of -O3)
857    
858    checkpoint51q_post
859    o cd_code:
860      - moved cd_scheme.F -> cd_code_scheme.F
861      - separate read_checkpoint from cd_code_ini_vars.F
862      - separated cd_code part from write_checkpoint
863      - updated AD_SOURCE, generated .flow
864      - added CD_CODE_VARS.h to the_main_loop
865      - Moving cd_code specific store dir.s to pkg/cd_code
866    o ctrl package totally restructured
867      - pack/unpack now optional and decoupled from
868        xx_/adxx_ I/O
869      - ctrl_pack/unpack cleaned
870        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
871      - confined inclusion of AD_CONFIG.h to where necessary.
872    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
873    
874    checkpoint51p_post
875    o create initial cd_code package
876      - WARNING: the initialization of fields within packages
877        is broken because INI_FIELDS (where READ_CHECKPOINT is
878        called) is called *before* PACKAGES_INIT_VARIABLES.
879        This seems to be backwards since
880        1) its important to initially zero the entire field including
881           the "halo" region
882        2) zeroing needs to be done *before* reading pickup info
883           and the pickup call might or might not happen in any
884           particular run
885      - this needs an overhaul for R2
886    o cleanup verification/*/code/GMREDI_OPTIONS.h
887    o cleanup testreport
888    
889    checkpoint51o_post
890    o bringing AD-related verif's up to date with genmake2
891      - carbon/
892      - global_ocean.90x40x15/
893      - hs.94.1x64x5/
894      - (front_relax/ )
895    o (more) consistent directory structure for AD-related verif.'s
896    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
897    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
898    o bug fix in find_alpha.F for MDJWF:
899      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
900        change rho -> rho-rhoConst
901      - replace call find_rho to find_rhonum
902    o initialisation of rFlx extended to full array (required by TAF)
903      and shifted to thermodynamics
904    o removed PTRACERS.h in ptracers routine
905    o added surfacetendencyPtr to S/R parameter list pracers_forcing
906    o Correcting initialisations for fVerU, fVerV.
907    o helping TAF to recognize dependency on kUp for
908      fVerU, fVerV
909    o Replacing delZ by delR in pkg/ctrl/
910    checkpoint51o_pre
911    
912    o undid all of cp51 pending some cleanups and discussion
913    o added the [#include "AD_CONFIG.h"] statement to all files that need
914       it for adjoint/tl #defines
915     o re-worked the build logic in genmake2 to support AD_CONFIG.h
916     o removed tools/genmake since it no longer works
917    
918    checkpoint51n_post
919    o modifications to make FREEZE flux visible to pkg/kpp
920      - moved surfaceTendencyTice from pkg/seaice to main code
921      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
922      - subroutine FREEZE now limits only surface temperature
923        (this means new output.txt for global_ocean.90x40x15,
924         global_ocean.cs32x15, and global_with_exf)
925    o added surface flux output variables to TIMEAVE_STATVARS
926    
927    checkpoint51n_pre
928    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
929    o added [#include "AD_CONFIG.h"] to all files that use the following
930      defines:
931      - ALLOW_ADJOINT_RUN
932      - ALLOW_TANGENTLINEAR_RUN
933      - ALLOW_ECCO_OPTIMIZATION
934    
935    checkpoint51m_post
936    o incorporating changes to get TAMC/TAF working in genmake2
937      - added new TAMC/TAF targets to the Makefile
938      - various cleanups related to package handling
939      - these changes should have no impact on the forward model
940    
941    checkpoint51l_post
942    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
943     - faster algorithm for cal_addtime.F
944     - higher precision arithmetic, where needed
945     - pkg/exf *startdate variables changed from calendar date to
946       model integration time
947    
948    checkpoint51l_pre
949    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
950    o enable to apply restoring on S & T only in a latitude band.
951    o update output (external_forcing_surf modif. change truncation errors)
952       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
953    
954    checkpoint51k_post
955    o change default to: useNHMTerms=.FALSE.
956     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
957       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
958     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
959        exp1, ideal_2D_oce
960     - change data file of oceanic exp (leave the results unchanged for now)
961       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
962    o set gravitySign automatically according to the vertical coordinate used
963      (and change sign: back to "logical" value: +1 when R increases downward)
964    o added an include barrier to the default CPP_OPTIONS.h and
965      removed the #include "PACKAGES_CONFIG.h" from it
966    o fix a bug in mom_fluxform (from chk51j_post)
967    
968    checkpoint51j_post
969    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
970    o adjusted some flow directives (dynamics, thermodynamics)
971    o added cubed-sphere case to test cost function
972    o heckpoint_lev?_directives.h now include
973      pkg-specific directives, whenever those are enabled.
974    o Moving pkg-specific flow directives to corresponding pkg
975      Moving pkg-specific differentiation list to corresponding pkg
976      Moving pkg-specific checkpoint-lev storing to corresponding pkg
977      ---> conventions are
978           - pkg_ad.flow
979           - pkg_ad_diff.list
980           - pkg_ad_check_lev?_dir.h
981    
982    checkpoint51i_post
983    o merge of the branch-genmake2
984      - knowingly breaks the older genmake
985      - automatic generation of all ALLOW_${PKG_NAME} defines
986      - new testreport supersedes older testscript
987    o large number of package inclusion and header cleanups
988    checkpoint51i_pre
989    
990    o new output for adjoin of global ocean vector invariant
991    o fix for checkpoint of thermodynamic seaice and bulk_force
992    o Steph gchem various cleanups
993    
994    checkpoint 51h_pre
995    o fixed some single quotes
996    o modify gchem pkg to be more versatile
997    o modifications to clean up dic pkg
998    o add pkg/cfc
999    
1000    checkpoint51g_post
1001    o provide links for ARPACK and ADM*TLM
1002    o start removing verification/vero/
1003    o update AD-related stuff
1004      (in particular some IF-statements in model/src/ routines)
1005    o adding to verification/global_ocean.90x40x15/ adjoint of
1006      vector invariant setup
1007    
1008    checkpoint51f_post
1009    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1010    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1011      of tracer Green's fucntions for ocean inversion project.
1012    
1013    checkpoint51f_pre
1014    o Added on-the-fly spatial interpolation capability
1015        "USE_EXF_INTERPOLATION" to pkg/exf.
1016      - This is a temporary Cartesian-grid hack until
1017        the super-duper ESMF coupler becomes available.
1018      - See verification/global_with_exf/README for usage example.
1019      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1020        flags and modified pkg/seaice accordingly.
1021    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1022        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1023        non-local transport term.
1024    
1025    checkpoint51e_post
1026    o pkg/mom_vecinv:
1027      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1028      - add time-ave diagnostic of vorticity advection.
1029    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1030    o atmospheric geopotential: - include water vapor effect;
1031                                - use p^kappa in p* scaling.
1032    o land pkg: read initial state from files.
1033    o AIM : add stratospheric drag in the upper level
1034    
1035    checkpoint51d_post
1036    o change function ILNBLNK (=> last non-blank char.) to return zero
1037      (instead of the string length) when the string. char is empty
1038    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1039    o modif's to restore TAMC compatibility
1040      - avoid "_d" constructs in PARAMETER declarations
1041      - avoid interrupting lines by comment lines
1042    o Use cluster local disks for purely local I/O
1043      vs. globally visible disks needed for ctrl stuff
1044      (merged from ecco-branch)
1045      - new active_file_loc... and mdsio_..._loc routines
1046      - affected packages: autodiff, ctrl, grdchk, mdsio
1047    
1048    checkpoint51c_post
1049    o introducing integer flag debugLevel
1050      - debLevZero: suppress all output
1051      - debLevA: standard
1052      - debLevB: equivalent to current debugMode=.TRUE.
1053    o introducing pathname variable mdsioLocalDir for mdsio
1054      that can be specified at runtime
1055      (relevant for cluster I/O to local disk)
1056    `
1057    >>>checkpoint51b_post
1058    adjoint of ptracers
1059    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1060    o extended state in checkpoint_lev?, etc.
1061    o alternative ctrl/cost with tr1 or ptracer
1062    o new comlev1_bibj_ptracers
1063    o new ptracers.flow
1064    o made ptracers_forcing same as external_forcing_s
1065    o added verification for adjoint with ptracers
1066      - adm. grdchk fail so far
1067      - tlm. grdchk OK
1068      - checked tapelev/comlev recomputations: OK
1069    <<<checkpoint51b_pre
1070    
1071    checkpoint51a_post
1072    o added code for biogeochemistry package
1073      - new pkgs: dic, gchem
1074      - new subroutine in ptracers
1075    o modify code for biogeo packages
1076      - in model/src and pkg/ptracers
1077    
1078    checkpoint51
1079    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1080      - autodiff, ctrl, exf, grdchk, seaice
1081      kept separate packages
1082      - cost, ecco, obcs
1083    o updating verification/internal_wave, verification/lab_sea
1084      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1085    
1086    checkpoint50i_post
1087    o Preparing next differentiable checkpoint and sync
1088      of MAIN vs. ecco-branch
1089      - 1st step: this one is differentiable
1090      - 2nd step: next(! not this) checkpoint will have updated packages
1091                  from ecco-branch)
1092    
1093    checkpoint50h_post
1094    o new package "land": provide surface BC for AIM.
1095    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1096    o AIM: use true log-P extrapolation for near surface temp (= as in
1097        F.Molteni paper) ; update aim.5l_cs output.
1098    o New variable in PARM03 for more flexible pickups
1099    o somewhat cleaned package initialisation sequence for
1100      ctrl/ cost/ ecco/ in packages_... routines
1101    
1102    checkpoint50g_post
1103    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1104      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1105      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1106        made the default because of faster convergence than ADI
1107    
1108    checkpoint50f_post
1109    o exf totally restructured
1110      - replaced all exf_set_ routines by one generic exf_set_gen.F
1111        and made sure it's still differentiable
1112      - split exf_getffields.F into new exf_bulkformulae.F
1113      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1114      - updated adjoint/makefile and relevant verif. accordingly
1115    
1116    checkpoint50f_pre
1117     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1118          + change Evap over land. (update aim.5l_cs output)
1119     o added missing .cvsignores and made uniform across expts
1120     o changed configuration of tidal_basin_2d expt
1121     o added pkg/debug functions for tracing code in fatal crashes
1122     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1123     o new fn in pkg/monitor to stop model if solution grows too big
1124     o removed lots of single quotes from comments
1125    
1126    checkpoint50e_post
1127    o make KPP work with PTRACERS
1128     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1129       nearly a copy of kpp_transport_s
1130     - there is no analogue to SurfaceTendencyS, so I have to use
1131       gPtr(of the surface layer) instead
1132    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1133    checkpoint50e_pre
1134    
1135    checkpoint50d_post
1136    o change kpp output from multiple-record state files to single-record state
1137      files analogous to write_state.F
1138    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1139      analogous to the cg2d-related output.
1140    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1141      so that writing to internal file fn (with length 512) fails.
1142    checkpoint50d_pre
1143    
1144    checkpoint50c_post
1145    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1146    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1147    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1148    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1149    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1150    
1151    checkpoint50c_pre
1152    Merging from release1_p13:
1153    o bug fix for pkg/seaice dynamic solver
1154    o Added SEAICE_initialHEFF to pkg/seaice
1155    
1156    checkpoint50b_post
1157    o store u*,v* in gU,V instead of in guNm1,gvNm1
1158    o in order to put the momForcing out of the Adams-Bashforth:
1159      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1160      to timestep.F
1161    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1162    o re-generate output for highly sensitive test-exp:
1163       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1164    
1165    checkpoint50b_pre
1166    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1167    o corrected CPP option mismatch in exf_Bulk... functions for case
1168      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1169    
1170    checkpoint50a_post
1171    o Bug fix for merging between c50 and KPP.
1172      ikey was passed from thermodynamics to kpp_calc via
1173      common block rather than being recomputed in kpp_calc,
1174      in contradiction with new key itdkey.
1175      New key ikppkey created, and tamc.h headers updated.
1176    
1177    checkpoint50
1178    - 2nd step of merge with ecco-branch:
1179      merge changes in ecco-branch back into main trunk
1180    - bug fix in find_alpha
1181    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1182    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1183    - merged some sliced AD support routines
1184    
1185    checkpoint49
1186    merged from ecco-branch:
1187    o exf:
1188      - Enable initialisation of forcing fields to constant
1189        (runtime) values.
1190      - in exf_getffields.F
1191        Reduce i-/j-loop to interior domain, discarding overlaps.
1192        That also fixes wrong TAF-key computations for key_1, key_2
1193        with bulf formulae.
1194      - exf_init.F modify #ifdef for exf_init_evap
1195      - exf_getffieldrec.F, ctrl_getrec.F
1196        The following INT-usages are not safe:
1197          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1198          fldcount = int(fldsecs/fldperiod) + 1
1199        and were modified.
1200    o autodiff: checkpoint_lev...
1201      - updated storing for bulk formulae (some arrays were missing)
1202      - added state for seaice package
1203      - synchronized with main branch
1204    o DIVA:
1205      Modif.s in
1206      - the_main_loop.F
1207      - the_model_main.F
1208      and added cost_final_restore.F cost_final_store.F
1209      o With these changes, it is possible to fully separate
1210        the first forward run to compute the cost function (mdthe_main_loop)
1211        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1212        into separate model executions.
1213        This enables better tuning of DIVA to given queue sizes.
1214      o Loss of cost function value in consecutive DIVA runs is
1215        fixed by storing to 'costfinal' file.
1216      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1217        beginning/end of adjoint integration is accounted for.
1218      The current changes apply to TAF-1.4.26.
1219      TAF has one remaining bug, requiring one manual change
1220      (see MITgcm manual).
1221    o cal: synchronized between MAIN and ecco-branch
1222    
1223    checkpoint48i_post
1224    o Changes to restore differentiability of code w.r.t. previous tag
1225      (mostly adding new routines to make list and replacing
1226      pressure by totPhiHyd).
1227    o Updated and merged grdchk package
1228      - has both ADM and TLM checks
1229      - works for single- and multi-proc.
1230      - output cleaned
1231      - worked successfully for parallel DIVA
1232    o genmake:
1233      - Adding -platform=SP4
1234      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1235    o Modif. for DIVA:
1236      ctrl_unpack should not be called in intermediate DIVA interval.
1237      (similar thing would apply for active files such as
1238      tbar, sbar, psbar, which should not be reinitialised;
1239      only relevant for ecco-branch)
1240    
1241    checkpoint48h_post
1242    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1243    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1244    o Added SEAICE_initialHEFF to pkg/seaice
1245    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1246    
1247    checkpoint48g_post
1248    --- EOS:
1249    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1250      store total Potential in totPhyHyd for diagnostics & EOS.
1251    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1252    --- Pressure/geopotential gradient:
1253    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1254    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1255      ( changes results of global_ocean_pressure )
1256    o NLFS + z-coord.: add eta*Rho' contribution.
1257    o accurate phiHyd when using interface-W at the middle between 2 centers
1258     ( changes results of ideal_2D_oce )
1259    o includes r* 2nd term in potential gradient.
1260    
1261    checkpoint48f_post
1262    Merging from release1_p12:
1263    o Modifications for using pkg/exf with pkg/seaice
1264      - improved description of the various forcing configurations
1265      - added basic radiation bulk formulae to pkg/exf
1266      - units/sign fix for evap computation in exf_getffields.F
1267      - updated verification/global_with_exf/results/output.txt
1268    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1269      (SBO) core products, including oceanic mass, center-of-mass,
1270      angular, and bottom pressure (see pkg/sbo/README.sbo).
1271    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1272      to avoid negative values in shallow regions.
1273      - updated verification/natl_box/results/output.txt
1274      - updated verification/lab_sea/results/output.txt
1275    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1276    o Added useSingleCpuIO option (see PARAMS.h).
1277    o Updated useSingleCpuIO option in mdsio_writefield.F to
1278      work with multi-field files, e.g., for single-file pickup.
1279    o pkg/seaice:
1280      - bug fix in growth.F: QNET for no shortwave case
1281      - added HeffFile for specifying initial sea-ice thickness
1282      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1283    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1284      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1285    o pkg/seaice:
1286      - adjoint-friendly modifications
1287      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1288    
1289    checkpoint48e_post
1290    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1291    o dynamics: change definition of computational domain & adapt mom_fluxform
1292      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1293    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1294        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1295        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1296        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1297        inverted_barometer solid-body.cs-32x32x1
1298      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1299    
1300    checkpoint48d_post
1301    o in preparation for r*:
1302     a) use pre-computed gradient of hydrostatic potential:
1303        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1304     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1305        => affects results of glob_oce_pressure (different truncation error)  
1306      update output.txt of ideal_2D_oce & global_ocean_pressure
1307    
1308    checkpoint48d_pre
1309    o in preparation for r*:
1310      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1311      pass the 2 comp. of the grad. as arguments to momentum S/R.
1312      but for the moment, only used if it does not change the results.
1313    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1314    
1315    checkpoint48c_post
1316    Modifications in treatment of initial flux forcing controls
1317    to avoid extra storing of flux fields.
1318    
1319    checkpoint48c_pre
1320    o Added tidal_basin_2d experiment (currently 1D!)
1321    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1322    
1323    checkpoint48b_post
1324    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1325     (modification to pressure gradient not yet implemented)
1326    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1327      (for U & V) that are used for vertical advection of momentum.
1328    
1329    checkpoint48a_post
1330    o In preparation for r*, use temp. array to compute vertical transport
1331       in flux-form momentum pkg. => change results of few test-exp.
1332      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1333                        lab_sea, natl_box & plume_on_slope
1334    
1335    checkpoint48
1336    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1337    
1338    checkpoint47j_post
1339    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1340    o moved adexch from forward_step to addummy_in_stepping
1341    o added exch in ctrl_map_...
1342    o aveFreq.=0. at end of cost_final to avoid overwrite in
1343      reverse checkpointing loop
1344    o Yet more changes in gmredi:
1345      * adgmredi_calc_tensor
1346        avoiding all recomputation of gmredi_slope_limit
1347      * adgmredi_x/y/rtransport
1348        added flag for excessive storing to avoid recomp. of
1349        u/v/rtans, dTdx/y/z
1350        -> this is not really necessary and very memory-consuming
1351      * adgmredi_slope_psi:
1352        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1353      * gmredi_slope_limit
1354        re-activated full calculation of taperfct for case 'ac02'
1355    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1356    
1357    checkpoint47i_post
1358    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1359    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1360      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1361    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1362    o gmredi: fix few bugs.
1363    
1364    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1365    This will be a good checkpoint to plug into the ecco-branch.
1366    o few modif.'s to get latest version adjointed
1367      (mainly kick out code in ini_linear_phisurf)
1368    o modif's to run adjoint with exactConserv
1369    o case GM_BOLUS_ADVEC should be cleaned
1370      S/R gmredi_slope_psi should be cleaned
1371    o verification/carbon now has exactConserv=.TRUE.
1372    
1373    checkpoint47g_post
1374    o time-average AIM output: becomes independent from statvars time-average
1375      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1376    o After TAF bug fix:
1377      Tested adjoint of gmredi package.
1378      Tests were done with checkpoint47 rather than with latest
1379      checkpoint47f_post since the latter is broken for the adjoint
1380      verification/carbon/ contains both ADM and TLM gradient checks.
1381    Here they are, before they get changed/lost/stolen.
1382    Mostly modif.'s to fix numerical sensitivities.
1383    Gradient checks OK for
1384    - GM_taper_scheme:
1385      * clipping
1386      * ac02
1387      * linear
1388      * glw91
1389      * dm95
1390      * ldd97
1391    - GMREDI_OPTIONS:
1392      * GM_VISBECK_VARIABLE_K
1393      * GM_NON_UNITY_DIAGONAL
1394      * GM_EXTRA_DIAGONAL
1395      * GM_BOLUS_ADVEC
1396    in conjunction with data.gmredi parameters to be checked in
1397    in a few minutes under verification/carbon/code/
1398    
1399    checkpoint47f_post
1400    Merging from release1_p10:
1401    o modifications for using pkg/exf with pkg/seaice
1402      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1403        and SEAICE_EXTERNAL_FLUXES
1404      - pkg/exf CPP options EXF_READ_EVAP and
1405        EXF_NO_BULK_COMPUTATIONS
1406      - usage examples are Experiments 8 and 9 in
1407        verification/lab_sea/README
1408      - verification/lab_sea default experiment now uses
1409        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1410    
1411    checkpoint47e_post
1412    o created a tag prior to creating a branch
1413    
1414    checkpoint47d_post
1415    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1416      at the bottom boundary had an erroneous half slip boundary condition
1417    o added bottom drag and no slip boundary condition capabilities to
1418      oceanic pressure coordinates code
1419    o added new verification experiment global_ocean_pressure, this experiment is
1420      also described in the tutorial section of the manual
1421    checkpoint47d_pre
1422    
1423    checkpoint47c_post
1424    o Added a verification experiment for a global cubed-sphere ocean run
1425      -  verification/global_ocean.cubed32x32x30
1426      -  uses pkg/therm_seaice and pkg/bulk_forcing
1427    
1428    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1429    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1430      when using P-coordinate; only implemented for atmospheric config.
1431    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1432      NOTES: requires option NONLIN_FRSURF to be "#define".
1433    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1434    
1435    checkpoint47b_post
1436    Merging from release1_p9:
1437    o pkg/seaice
1438      - removed GOTO's and added taf directives
1439      - double precision constants to reduce the g77 (Linux)
1440        to F77 (SGI) differences reported in release1_p8
1441    o tools/genmake
1442      - added SGI options
1443    o verification/testscript
1444      - updated to that of checkpoint47a_post
1445    o verification/global_ocean.90x40x15/input/eedata
1446      - modified for SGI f77 compatibility
1447    o verification/lab_sea
1448      - added description of sea-ice model
1449      - added missing matlab routines
1450      - added test of thermodynamics parallelization
1451    
1452    checkpoint47a_post
1453    o new pkg: aim_v23
1454     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1455       for now, keep the same surface forcing as before.
1456     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1457     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1458     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1459    o add diagnostic of surface correction term in monitor output
1460    
1461    o bulk_force and therm_seaice
1462    - Two packages:  bulk_force (Bulk forcing)
1463      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1464    - Earlier integration from Stephaine Dutkiewicz
1465      and Patrick Heimbach.
1466    - Two ifdef statements for compile time,
1467       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1468    
1469    checkpoint47
1470    differentiable version of checkpoint46n_post
1471    o bug fix in quasihydrostaticterms
1472    o * "clean" adjoint code (in terms of extensive recomputations)
1473        can now be obtained for all GMREDI options (i.e. for
1474        - GM_VISBECK_VARIABLE_K
1475        - GM_NON_UNITY_DIAGONAL
1476        - GM_EXTRA_DIAGONAL
1477        - GM_BOLUS_ADVEC )
1478      * However, wrong gradient check problem remains unsolved.
1479      * New CPP options have been introduced for different
1480        tapering schemes
1481    o external_fields_load now part of differentiation list
1482    o pressure needs multiple storing;
1483      would be nice to have store_pressure at beginning or
1484      end of forward_step, e.g. by having phiHyd global (5-dim.)
1485      (NB: pressure is needed for certain cases in find_rho,
1486      which is also invoked through convective_adjustment).
1487    o recomputations in find_rho for cases
1488     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1489    o #define ATMOSPHERIC_LOADING should be differentiable
1490    o ini_forcing shifted to begining of initialise_varia
1491    o Incorporating QNVS line search routines into MITgcm
1492      (this is separate code, and therefore not under pkg)
1493      lsopt/, optim/
1494    o Updated verification/carbon/
1495      - #define GM_VISBECK_VARIABLE_K
1496      - GM_taper_scheme    = 'ldd97'    
1497    
1498    checkpoint46n_post
1499    Merging from release1_p8:
1500    o verification/natl_box:
1501      updating new external_fields_load routine
1502    o New package: pkg/seaice
1503      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1504      The sea-ice code is based on Hibler (1979-1980).
1505      Two sea-ice dynamic solvers, ADI and LSR, are included.
1506      In addition to computing prognostic sea-ice variables and diagnosing
1507      the forcing/external data fields that drive the ocean model,
1508      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1509      The implied surface heat flux is then stored in variable
1510      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1511      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1512      non-local transport term.  Because this call precedes model
1513      thermodynamics, temperature under sea-ice may not be "exactly" at
1514      the freezing point by the time theta is dumped or time-averaged.
1515      N.B.: fairly large differences in accuracy occur across
1516            different platforms/compilers; comparison between
1517            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1518            generated output gives:
1519       T           S           U           V
1520      C D M    c        m  s        m  s        m  s        m  s
1521      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1522      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1523      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1524    
1525      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1526    o GAD:
1527      - generated new common blocks to account for call of
1528        same gad routines with differing traceridentities
1529        (needed to modify tracerIdentity indices in GAD.h)
1530      - generated separate common blocks for case useCubedSphereExchange
1531        (Department of Futurology)
1532      - parameter lists to gmredi_?transport: added tracerIdentity
1533      - added new key indices to tamc.h
1534    o external_fields_load:
1535      - added this routine to TAF list
1536      - needed to make some common blocks global and additional storing
1537        along the same lines as exf package (checkpoint_lev?_directives.h)
1538    o exf:
1539      updated external forcing package
1540      - bug fixes carried over from ecco-branch
1541        (missing OBCS_OPTIONS.h in two routines)
1542      - enable easy to use "no forcing".
1543      - added exf I/O for atmospheric loading
1544      - added exf I/O for runoff data
1545      - transfered scaling between exf <-> MITgcm to exf namelist
1546    o Adding new verification experiment global_with_exf.
1547      This verification experiment is almost identical to the
1548      global_ocean.90x40x15 experiment, except that it uses
1549      the exf (and cal) package instead of the
1550      external_fields_load routine (cf README file).
1551    
1552    checkpoint46m_post
1553    o modified testscript to return -- when there are no lines of "%MON" output
1554    o added new flag "quasiHydrostatic" for QH mode
1555      and new routine quasihydrostaticterms()
1556    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1557      New routine: mom_u_coriolis_nh()
1558    o fixed sign of non-hydrostatic metric terms in u and v equations.
1559      Depend on correct sign of gravitySign.
1560    o added work.pc* to .cvsignore in aim directories using ifc
1561    o introduced flag for controllin non-hydrostatic metric terms
1562    o removed gravitySign from PARM04
1563    o switched to g77/ifc from pgf77 in aim experiments
1564    
1565    checkpoint46l_post
1566    o made convective adjustment work with pressure coordinates:
1567     - changed the direction of k-loop in convective_adjustment.F for the
1568       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1569     - adjusted the reference pressure k-index in convective_adjustment.F
1570     - adjusted the convection condition in convect.F (in analogy to
1571       calc_ivdc.F)
1572     - convective_adjustment no longer computes anything on the halos
1573     - removed the warnings about negative salinity from find_rho.F and
1574       find_alpha.F; instead the new routine look_for_neg_salinity, called
1575       at the beginning of find_rho, find_alpha, and find_beta, does a
1576       check of the entire slice, if CPP-option
1577       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1578    checkpoint46l_pre
1579    
1580    checkpoint46k_post
1581    o fixed the verification/global_ocean.90x40x15 experiment:
1582     - new bathymetry (the world according to A., JMC, and M.)
1583     - new initial fields and forcing fields (*.bin files)
1584     - new POLY3.COEFFS (for the next release one should switch to a full
1585       equation of state: JMD95P or MDJWF)
1586     - fixed several errors and redundancies in the data file
1587     - experiment uses looped cells
1588     - added matlab directory with diagnostic scripts for plotting of output
1589    
1590    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1591     - read AIM physics parameters from a file (data.aimphys)
1592     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1593    
1594    checkpoint46j_post
1595    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1596    o move wVel computation at the end of the time step, in S/R integr_continuity
1597    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1598    o update timeave pkg for wVel diagnostic.
1599    checkpoint46j_pre
1600    
1601    checkpoint46i_post
1602    o Clean up AIM package (and keep the results unchanged):
1603      include CPP_OPTION and use IMPLICT NONE in all routines ;
1604      declare all the variables _RL ; use _d 0 for all numerical constants.
1605      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1606    
1607    checkpoint46h_post
1608    o cleaned up the use of rhoNil and rhoConst.
1609      - rhoNil should only appear in the LINEAR equation of state, everywhere
1610        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1611        and the dynamical equations are all divided by rhoConst
1612    o introduced new parameter rhoConstFresh, a reference density of fresh
1613      water, to remove the fresh water flux's dependence on rhoNil. The default
1614      value is 999.8 kg/m^3
1615    o cleanup up external_forcing.F and external_forcing_surf.F
1616      - can now be used by both OCEANIC and OCEANICP
1617    checkpoint46h_pre
1618    
1619     Added code to convert surface volume flux (fresh water) into
1620     a mass flux when using P coordinates in the ocean (OCEANICP).
1621     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1622    
1623    checkpoint46g_post
1624    o Include a new diagnostic variable phiHydLow for the ocean model
1625      - in z-coordinates, it is the bottom pressure anomaly
1626      - in p-coordinates, it is the sea surface elevation
1627      - in both cases, these variable have global drift, reflecting the mass
1628        drift in z-coordinates and the volume drift in p-coordinates
1629      - included time averaging for phiHydLow, be aware of the drift!
1630    o depth-dependent computation of Bo_surf for pressure coordinates
1631      in the ocean (buoyancyRelation='OCEANICP')
1632      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1633        Theta, Salinity, and Pressure in the parameter list. This routine is
1634        presently contained in find_rho.F. This routine does not give the
1635        correct density for 'POLY3', which would be a z-dependent reference
1636        density.
1637    o cleaned up find_rho
1638      - removed obsolete 'eqn' from the parameter list.
1639    o added two new verification experiments: gop and goz
1640      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1641    checkpoint46g_pre
1642    
1643    checkpoint46f_post
1644    o Enable tangent linear (forward mode) gradient checks:
1645      - extended active file handling to g_... files
1646      - added TANGENT_SIMULATION to theSimulationMode
1647      - extended grdchk package accordingly
1648    o added tangent linear setup in verification/carbon/code_ftl
1649    o added adjoint setup in verification/front_relax/code_ad
1650    
1651    checkpoint46e_post
1652    o Added new equation of state -> MDJWF
1653      - EOS of McDougall et al., 2002, JAOT, submitted
1654      - caveat: the equation of state is only valid for a smaller (more
1655        realistic?) range of values than JMD95P/Z and UNESCO
1656      - added masks to the calculation of pressure in store_pressure
1657      - added more check values for density in check_eos (ini_eos.F), some of
1658        the old check values are out of the range of the MDJWF-eos, so don't
1659        expect perfect matches for those
1660    checkpoint46e_pre
1661    
1662    checkpoint46d_post
1663    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1664      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1665      case of pressure coordinates. eosType='JMD95Z' in
1666      combination with buoyancyRelation='OCEANICP' now causes an error.
1667    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1668      in find_alpha/beta.
1669    checkpoint46d_pre
1670    
1671    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1672      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1673    
1674    checkpoint46c_post
1675    o Changes necessary for ocean in p-coordinates
1676     -  Added new buoyancy relation = 'OCEANICP'
1677     -  Added new parameters = gravitySign (this used to be contained inside
1678        the factor dRdZ which I added when we first switched to R coordinates).
1679     X GM/Redi is not compatible (yet)
1680     X bottom drag and no-slip need to be debugged.
1681    checkpoint46c_pre
1682    
1683    checkpoint46b_post
1684    o Added new equation of state -> JMD95Z and JMD95P
1685      - EOS of Jackett and McDougall, 1995, JAOT
1686      - moved all EOS parameters into EOS.h
1687      - new routines ini_eos.F, store_pressure.F
1688    o Added UNESCO EOS, but not recommended because it requires
1689      in-situ temperature (see JMD95)
1690    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1691      unesco.f to be used with POLY3
1692    checkpoint46b_pre
1693    
1694    checkpoint46a_post
1695    o Added (atmospheric) pressure loading
1696      - new field in FFIELDS.h, etc...
1697      - new cpp flag ATMOSPHERIC_LOADING
1698    o Changed hFacC to _hFacC in calc_phi_hyd.F
1699    o Added SHORTWAVE_HEATING to some files for consistency
1700    checkpoint46a_pre
1701    
1702    checkpoint46
1703    further merges from release1_p5
1704    o new ctrl package
1705      - adopted from ECCO environment to enable optimization
1706      - added Eliassen Palm fluxes to controls
1707    o added Eliassen Palm flux controls to gradient check package
1708    o cost package
1709      - Compatible with new ctrl package
1710      - added Eliassen Palm cost hooks
1711      - modif's of existing cost functions
1712    o Adjoint-related bug fixes in kpp:
1713      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1714      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1715    o autodiff package
1716      - flow directives:
1717        + new for S/R do_the_model_io
1718        + enhanced for S/R checkpoint
1719        + new gmredi.flow
1720      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1721        disable adcommon.h/g_common.h by default.
1722      - fixed problem for adjoint of global_max
1723    o modified verification/carbon/
1724    o New setup for adjoint of global_ocean
1725    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1726    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1727    o incorporated hooks for sponge layer code (external_forcing.F)
1728    
1729    checkpoint45d_post
1730    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1731    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1732      (affects plume_on_slope "cg2d" output)
1733    o add new parameter deltaTfreesurf for free-surface time stepping
1734    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1735    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1736    o change phiMin in exp1 (to agree with documentation)
1737    o add new flags:
1738     - T,S forcing inside/outside Adams-Bashforth
1739     - turn off temp,salt advection and/or forcing
1740     - for each tracer, define internal flag for multiDimAdvection & A-B
1741    o monitor: change definition of KE to check conservation of Energy
1742    
1743    checkpoint45c_post
1744    o Removed f90 comments ("!")
1745    o Modified initialisations to enable exf package for MITgcm
1746      (without invoking ECCO_PACKAGE).
1747    o modifications to gradient check package (Martin Losch)
1748      - enable centered differences
1749      - modified format of standard output
1750    
1751    checkpoint45b_post
1752    o cleaned exchange calls in cg2d
1753    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1754    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1755      to configure barotropic setup (Martin Losch)
1756    o moved some initialisations within bi,bj loop in dynamics
1757      (TAF flow dependency)
1758    o in initialise_varia, moved call packages_init_variables
1759      before convective_adjustment_init
1760      (corresponding adjustment of TAF tape initialisation).
1761    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1762    
1763    checkpoint45a_post
1764    o compute Rho over the whole domain (extend iMin,jMin indices)
1765    o specific exchange for X-slice domain (case Ny=1)
1766    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1767    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1768    
1769    checkpoint44h_post = checkpoint45
1770    o Fix to restore differentiability:
1771      place at which packages_init_variables is called in
1772      initialise_varia is crucial for reverse control flow.
1773    o modifications in GMRedi to enable stable adjoint
1774      (corresponding modif's in thermodynamics, dynamics)
1775    o added missing hook for sponge layer code in external_forcing
1776    o modified test cost functions
1777    o storing in gad_advection (plus removal of write(0,*)!
1778    o missing headers TR1.h added in convective_adjustment routines
1779    o errorMessageUnit set non-equal zero in eeboot
1780      (conflict on some platforms, e.g. IBM SP3)
1781    o modified carbon verif.
1782    
1783    checkpoint44h_pre
1784    o vertical grid option: allow to put the Interface at the middle between
1785      2 cell-centers ; replace delZ in pkg/kpp by drF.
1786    o GM Advective form: Tracers are advected using the residual transport (=
1787      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1788    
1789    checkpoint44g_post
1790    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1791      results) ; ifdef missing in thermodynamics.F
1792    
1793    checkpoint44f_pre,checkpoint44f_post
1794    o added PTRACERS package
1795      This allows an arbitrary number of passive tracers to be integrated
1796      forward simultaneously with the dynamicaly model.
1797      + Implemented so far:
1798        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1799        - I/O and checkpointing
1800        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1801      + Not implemented so far:
1802        - KPP
1803        - OBCS
1804      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1805        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1806        line in data.pkg.
1807      + This package is disabled by default since it increases storage.
1808    
1809    
1810    o testscript: added -cleanup option
1811    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1812                 b) enable to filter 2D fields.
1813    
1814    checkpoint44e_pre,post
1815    o re-wrote convective adjustment to use pre-calculated weights
1816      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1817      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1818      Original calls to convect() still in place.
1819    
1820    chkpt44d_pre,post
1821    o added missing EXCLUDE_MONITOR flags
1822    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1823      (incompatible typ in MIN/MAX expressions caused problems
1824      on IBM SP3)
1825    o in genmake added variable MAKEDEPEND
1826      plus resetting for case SunOS
1827    o added timer_stats.c routine for IBM SP3
1828    o removed variables in dynamics
1829    !!! I forgot to create tag chkpt44d_pre !!!
1830    !!! But chkpt44d_pre = chkpt44c_post    !!!
1831    
1832  o real fresh water flux implemented with non-linear free-surface.  o real fresh water flux implemented with non-linear free-surface.
1833    
1834  chkpt44c_pre,post  chkpt44c_pre,post

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