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revision 1.10 by cnh, Wed Jul 8 15:40:09 1998 UTC revision 1.457 by dimitri, Mon Feb 21 05:34:17 2005 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
6    o parameter calendarDumps: when set, approximate months (30-31 days) and years
7      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
8      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
9      months and years.  Requires pkg/cal.
10    o diagnostics: add pickup functionality
11      - off by default for backwards compatibility
12      - current version only uses MDSIO -- MNC will be added
13    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
14    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
15    
16    checkpoint57d_post
17    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
18    o modify verification/ideal_2D_oce so that it tests the creation of mnc
19      output from the diagnostics package
20    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
21    o make genmake2 more portable by using ".$FS" instead of ".f" for more
22      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
23    o add coordinate variables to the MNC output from the diagnostics package
24    o change MNC-flags default value: true when useMNC=TRUE
25    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
26      the ability (off by default) to read the grid information using MNC
27    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
28    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
29    o do snap-shot diagnostics at the middle of the time-interval (instead of
30      at the end).
31    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
32      new test for AIM with thSIce + slab-ocean
33    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
34    o move state variable diagnostics to the beginning of the time step ;
35      (note: still needs some work specially for snap-shot diagnostics)
36      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
37    
38    checkpoint57c_post
39    o Change testing option (-ieee) to get closer agreement between g77 & ifort
40    o generate new output.txt files on faulks with g77 & the new -ieee option
41    checkpoint57c_pre
42    
43    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
44      update output.txt of exp. global_ocean.90x40x15
45    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
46      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
47    o add saltFlux(+File) forcing capability with periodicExternalForcing
48    o allow to use pkg diagnostics for GM-Redi & ThSIce output
49    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
50    o improvements for the MNC output from DIAGNOSTICS:
51      - correct handling of the unlimitied dimension
52      - all dims now have associated coordinate variables
53      - variables located at U, V, and Corner ("Z") points are now written
54        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
55        *all* data points are output
56    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
57    o added pkg/seaice/seaice_monitor.F
58    o mdsio_readfield.F can now read files visible only to master MPI process.
59    o pkg/seaice: some test code for ice-modified ocean stress
60    o exf_getffields interpolation defaults to bilinear for all scalar forcing
61      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
62      spurious negative numbers for precipitation and humidity.  Will cause
63      some small numerical differences for integrations using pkg/exf/exf_interp.F.
64    o pkg/ctrl/
65      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
66        May be enabled via doPackDiag
67      *  introduce z-scaling of
68         + gradient (doZscalePack) and
69         + control (doZscaleUnpack)
70    o pkg/mdsio/
71      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
72      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
73    
74    checkpoint57b_post
75    o simplify options in diagnostics_fill arguments (remove weird combinations)
76    o fix MNC coordinate variables so that they now contain per-face index
77      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
78      general, EXCH2 grids are only aligned to a "local" coordinate system
79    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
80    o Implement instantaneous output within pkg diagnostics:
81      setting a negative frequency in data.diagnostics produces
82     "snap-shot" output (as opposed to time-average if freq > 0)
83    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
84      NOTE: change ptracer diagnostics name: use 2 characters to work with
85            more than 9 tracers. Add also diagnostics of advect & diffus flux.
86    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
87      becomes the coordinate variable for the 'T' dimension
88    o add CF-style coordinate variables to MNC
89      - just a first cut:  numbers are meaningless on the cubesphere and
90        missing along the T axis but otherwise it works!
91    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
92    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
93    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
94      this is based directly on what the model compute, so that the content of
95      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
96    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
97    o clean up build options files for SunOS, in particular
98      - remove -traditional from xmakedepend
99      - change -xarch=v9 to -xarch=native for f77
100      - restore use of make (not gmake)
101      - add CC=gcc if using g77
102    o changes per discussion of AM, JMC, & EH3 today:
103      - move redundant "grid" variables out of "state" -- in preparation of
104        creating proper CF-style coordinate variables and in recognition
105        that any/all grid variables can be easily copied (eg. w/NCO) from
106        the grid files into any of the other NetCDF files
107      - *always* output grid variables with MDSIO (this will eventually be
108        changed)
109      - output MNC grid file if useMNC is true
110    o every instance of _END_MASTER() has been found and replaced with
111      _END_MASTER( myThid ) in order to satisfy certain picky Sun
112      preprocessors
113    o re-arrange diagnostics pkg initialisation:
114     - allow each package to extend the available diagnostics list
115     - add some checking and fix small problems (multi-threaded, ...)
116     - new S/R diagnostics_fill (replace fill_diagnostics):
117       look through the short list of active diag. (instead of the long list)
118       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
119    
120    checkpoint57a_post
121    o this set of changes restores TAMC compatibility
122      tested for global_ocean.90x40x15 adjoint on trough
123      (what a pain)
124    
125    checkpoint57a_pre
126    o some modifs in tools/build_options for sunos
127    o call ctrl_pack for ctrl at end for optimcycle=0
128    
129    checkpoint57
130    o add horizontal bi-harmonic viscosity for vertical velocity
131      - new parameter viscA4W (defaults to viscA4)
132      - affects only non-hydrostatic code
133      - to be done: no-slip lateral boundary conditions
134    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
135    o implement Implicit Vertical advection for pTracers
136    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
137      (implemented also for implicit vertical diffusion & advection)
138    o OBCS: extend application of tracer open boundary conditions
139      to a strip beyond the boundary of width Olx/Oly
140    o add call monitor to TAF set of required calls (flow directives)
141      and include in natl_box_adjoint
142    o untangle a few ifdefs related to cost, ctrl, autodiff
143      untangel a few ALLOW_ECCO_OPTIMIZATION
144    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
145      (theta2, salt2 in ecco_cost_weights)
146    
147    checkpoint56c_post
148    o OBCS as control variables
149      - update ctrl_ad_diff.list, obcs_ad_diff.list
150      - remove balance of obcs controls from default
151      - fix index bug nobcs in ctrl_init
152      - fix dummy fields filen in ctrl_pack
153      - add dummy weights for obcs
154    o lsopt: comment out fort.94 output
155    o optim:
156      - remove unnecessary header files
157      - adjusted namelists
158      - add xerbla.F to Makefile
159    o exf:
160      - multiple modifications of exf_check_range
161      - unit change in exf_init_runoff from [m/year] to [m/s]
162    o mdsio:
163      - i/o-vector change debugLevel from debLevA to debLevB
164    
165    checkpoint56b_post
166    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
167      is called from DO_THE_MODEL_IO
168      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
169      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
170      - clean up PTRACERS_WRITE_TIMEAVE a little
171    o add another verification experiment that tests both the cfc-pkg and
172      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
173      reactive tendencies treated inline with regular timestepping
174    o testreport previously did a lousy job of comparing small numbers, so
175      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
176      implemented in the little c-progam tmp_cmpnum.c which is embedded in
177      testreport.
178    o ptracers_monitor: bug fix for MPI
179    
180    checkpoint56a_post
181    o GCHEM: finish reorganizating the package
182      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
183        (introduces another 3D-array for each passive tracer, but only if
184        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
185        gchemTendency is not needed because the timestep is done separately)
186      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
187      - GCHEM is now---more or less cleanly---separate from PTRACERS
188      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
189        so clear to me how that should be done in a general way.
190    o CFC: improve formatting of output in CFC_ATMOS
191    o PTRACERS:
192      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
193        that ALL experiments with ptracers enable can be checked. This makes
194        GCHEM_MONITOR obsolete.
195      - include a runtime parameter PTRACERS_monitorFreq that defaults to
196        monitorFreq
197      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
198    o add PTRACERS (PTR0[1-5]) to testreport output
199    o exf_check_range:
200      * default changed to .TRUE.
201      * will check values for niter0 if debLevA, every timestep if debLevB
202      * STOP in exf_check_range if 'out of range'
203      * range chosen generous to allow for potential extema
204      TBD: a version with stricter range
205           permitted range would be runtime parameters
206    o GMredi:
207      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
208      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
209      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
210    o GCHEM:
211      - move call to GCHEM_FORCING_SEP, so that it is now called before
212        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
213      - introduced a useGCHEM runtime flag and applied it everywhere.
214      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
215        this flag is now only visible within GCHEM-pkg routines.
216      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
217        be replaced by a 3D array that is computed before thermodynamics; for
218        this, the tracer ID iTracer had to be included into the parameter list
219        of ptracers_forcing
220      - set up forward_step to call gchem_forcing, that will replace
221        gchem_forcing_int in ptracers_forcing
222      - cleaning up
223    o small cleaning of exch2: remove files that are also in eesupp/src
224    
225    checkpoint56
226    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
227    o mnc: cleanup "full" files--fixes out-of-memory problem
228    o ECCO-GODAE
229      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
230      * fully merged and updated from SIO code
231        windstress sign change affects
232        - exf_inscal_[u/v]stress
233        - sign of xx_tau[u/v] adjustments
234        - signs in cost_scat
235      * ctrl_get_gen: avoid update of tau[u/v] for first few days
236      * natl_box_adjoint updated and compressed
237      * 2-level checkpoint switch added
238        (tested in EXP. 1 of natl_box_adjoint)
239      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
240    o SVD
241      * first complete, non-hacked version for SVD calculations
242      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
243        performed via direct access files admtlm_vector.it????
244        (via ctrl_[un]pack)
245      * optimcycle is used for ARPACK iteration counter
246        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
247      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
248        and add linear transforms where necessary
249      * controls are initial/final SST, SSS (can be extended; need to check
250        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
251    o mdsio: filename info to both stderr, stdout
252    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
253      from sign change
254    
255    checkpoint55j_post
256    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
257      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
258    o add consistent build directories and .cvsignore files to verification
259    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
260    o make all subroutines 30 or less characters in length for certain older
261      compilers to work (a thorough search only turns up two routines in
262      pkg/ptracers)
263    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
264      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
265    
266    checkpoint55i_post
267    o change arrays for total vertical diffusivity (2.D if explicit,
268      3.D if implicit) ; each ptracer uses its own background value.
269    o added mnc/NetCDF output capability to ocn_compon_interf
270      - added bits to verification/cpl_aim+ocn so that it can run on
271        ITRDA and other clusters without the mpirun "-wd" option
272    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
273      configuration
274    o give MNC the ability to create additional files rather than
275      exceeding a specified file size limit "MNC_MAX_FILESIZE"
276      - the default is just less than 2GB which is a practical limit
277        on many systems
278    o Compute the non-local term using either KPP vertical diffusivity (=default)
279       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
280    
281    checkpoint55h_post
282    o add verification test "vermix"
283    o remove all the *_ioinc flags and replace with the single global
284      outputTypesInclusive flag
285    o allow to set a vertical profile of vertical diffusivity for T & S
286    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
287    o useMNC moved from data.mnc to data.pkg
288    
289    checkpoint55g_post
290    o Renaming carbon AD experiments to comply with testreport conventions
291    o Updating adjoint of Held-Suarez hs94.1x64x5
292    o Fixing directives for non-ECCO forward_step, after ECCO directives
293      have been fixed to avoid recomp. of do_oceanic_phys
294      Works well for global_ocean.90x40x15,
295      but recomp. issue remains for carbon
296    o Updating adjoint output for natl_box_adjoint after
297      pkg/ecco has been modified (see taga c55d_post)
298    
299    checkpoint55f_post
300    o rename to timeave_init_fixed
301    
302    checkpoint55e_post
303    o some delicate re-shuffle of store directives to avoid one
304      extra call of do_oceanic_physics
305      affects ecco_the_main_loop.F, do_oceanic_physics.F
306      checkpoint_lev1_directives.h
307    o NB: this may break global_ocean adjoint temporarily,
308      but it is clear how to fix it. Will do later, need this now.
309    
310    checkpoint55d_post
311    o ECCO specific cost function terms (up-to-date with 1x1 runs)
312    o ecco_cost_weights is modified to 1x1 runs
313    o modifs to allow observations to be read in as
314      single file or yearly files
315    o enable to read exf forcing fields as either
316      single file or yearly files (flag useExfYearlyFields)
317    checkpoint55d_pre
318    
319    o switch between 2-level and 3-level checkpointing
320    o add ability of MNC to write local and "partial" (eg. 2D slices where
321      the full 3D field is never actually stored) arrays to NetCDF files
322      with the correct (that is, the complete multi-dimensional) set of
323      array indicies
324      - used in mom_vecinv() to write the diagFreq output
325      - tested (demonstrated) in verification/aim.5l_cs
326    o further mnc-ification
327      - add verification/lab_sea to the list with mnc setups
328      - fix undefined mnc v-names in cd_code
329      - add kpp to mnc output (both snapshot and timeave)
330    o non-hydrostatic code
331      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
332        in calc_gw.F
333      - defaults to viscAh
334      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
335        friction or Leith) in non-hydrostatic mode, as long as there is
336        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
337    o pkg/cost
338      extend simple cost functions to treat time mean quantities
339      (T,U,V) via cost_accumulate_state from cost_tile
340    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
341        be 2 times larger than the minimum size the advection scheme requires.
342        now get a perfect conservation of salt in advect_cs test-exp (updated)
343    o GGL90 (Gaspar's TKE mixed layer)
344      - add horizontal diffusion of TKE, requires exchanges in
345        do_fields_blocking_exchanges, horizontal diffusivity is zero by
346        default. In OPA there is no horizontal diffusion of TKE but the
347        mixing coefficients are computed from a horizontal average of TKE of
348        6 points or so. I think that diffusion has a little more physical
349        justification.
350      - clean up ggl90_calc in the hope of reducing memory usage (this hope
351        was in vain)
352      - mask tke-variable in ggl90_init
353    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
354    o fix biharmonic diffusion on CS-grid.
355    o more obcs stuff
356      - added obcs_external_fields_load as an alternative to the EXF-pkg option
357        for reading boundary values. This routine is called from
358        obcs_prescribe_read
359      - updated obcs_check
360      - changed sponge layer relaxation parameter units for days to seconds
361      - turned off sponge layer by default
362      - changed argument list of OBCS_CALC to myTime+deltaTclock
363      - fixed about 35 bugs in obcs_external_fields_load
364    
365    checkpoint55c_post
366    o obcs stuff
367      - new runtime flags useOBCSprescribe, useOBCSbalance
368      - re-arranged obcs_calc
369      - moved exf_getobcs to obcs_prescibe_read
370        obcs_prescibe_read is called after ORLANSKI stuff
371        and independent of it (executable can contain all).
372      - updated obcs_check
373      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
374        These may be necessary only if tangential velocities are
375        prescribed at OB, not sure, needs testing.
376    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
377      which simplifies the calls and passes the ifc check-bounds test
378    
379    checkpoint55b_post
380    o add a 2D scalar, Z location, exchange_2 routine.
381    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
382      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
383      affects advect_cs results (for the wrong reason): update output.txt
384    o use a more standard discretization for biharmonic viscosity ;
385     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
386      affects results of dome set-up: update output.txt
387    o fix gad_advection.F (CubedSphere part), back to version 1.23
388    o fix bug in mom_vi_del2uv.F (CubedSphere part).
389    
390    checkpoint55a_post
391    o merged code to
392      * prescribe/read time-dependent open boundaries
393        (works in conjunction with exf, cal)
394      * sponge layer code for open boundaries
395      * each boundary N/S/E/W now has its own CPP option
396        (healthy for the adjoint)
397    
398    checkpoint55
399    o up-to-date adjoint of previous breaks
400      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
401      - global_ocean_ebm: adjoint still needs fix (TLM ok)
402      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
403      - carbon: * remove tr1-related adjoint verification
404                * add ptracer as control variable
405    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
406      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
407    
408    checkpoint54f_post
409    o in verification/carbin/ remove experiment related to
410      ALLOW_PASSIVE_TRACER (array tr1 etc)
411      code_ad/ input_ad/ results_ad
412    
413    o add two new packages
414      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
415        + subject to optimization (memory)
416      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
417        + subject to reordering (many GOTOs in the original code)
418        + so far opps is called for every (i,j) point, and then operates in
419          the vertical; one may want to reorder the scheme in order operate in
420          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
421          fields)
422    o overhaul of IO so that we now have flags for MDSIO and/or MNC
423      - all verification tests compile and run with linux_ia32_g77
424      - defaults are compatible with current input files--nothing
425        should change if you were not previously using MNC
426      - MNC output has been added in numerous places (eg. timeave)
427        but there are still a few writes not yet do-able with MNC
428        (this is in progress)
429      - flags now allow for either/or/both use of MDSIO and MNC and
430        documentation will soon follow
431      - numerous small formatting cleanups for ProTeX
432    o add version info (via BUILD_INFO.h) to MNC and stdout
433    
434    checkpoint54e_post
435    o add two new packages
436      - pp81 (Packanowski and Philander, 1981), Richardson number and
437        stratification dependent mixing
438      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
439      - these scheme operate in a similar manner as KPP (without ghat, of
440        course), however there is only one diffusivity that is used for both
441        temperature and salinity (and passive tracers)ç
442    o add offline package
443    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
444      provided by Stephanie Dutkiewicz
445    o genmake2: add ability to search for C compilers and cleanup test output
446      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
447    
448    checkpoint54d_post
449    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
450    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
451      leading to additional shift by 5 days each year of integration
452       (i.e. leading to considerable offset over the years)
453    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
454    o start with no AB and no initial filtering (staggerTimeStep):
455      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
456    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
457      (external loading & cpl import/export stay in forward_step.F)
458    o update coupling interface to work with new staggerTimeStep
459    o change MDSIO ptracers_pickup.
460    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
461    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
462    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
463    
464    checkpoint54c_post
465    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
466      this affects (truncation error) output.txt of test-exp:
467       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
468    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
469    o change Qnet to always be the net heat flux, (+upward).
470      affects (truncation error) output of natl_box exp.: updated
471    o define the max number of passive tracers in PTRACERS_SIZE.h
472    o start to test mnc routinely in exp0
473    o add sea-ice loading (sIceLoad) as a new forcing field.
474    
475    checkpoint54b_post
476    o add testreport "-j JOBS" option for parallel builds (tested and pretty
477       impressive on Altix and Opteron systems)
478    o diagnostics can now write NetCDF files through the mnc package
479    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
480    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
481    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
482      affects (truncation error) output of lab_sea & natl_box exp.: updated
483    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
484    
485    checkpoint54a_post
486    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
487    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
488    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
489    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
490      + internal_wave (shift in writing cg2d_ini_res)
491    checkpoint54a_pre
492    
493    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
494      - modified verification/lab_sea and natl_box_adjoint accordingly
495    
496    checkpoint54
497    checkpoint53g_post
498    o prepare splitting of thermodynamics: store convect.counter in common block
499    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
500      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
501    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
502    o new parameter "nShapS": allow to treat differently S from T (nShapT)
503    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
504    o restore adjointability
505    
506    checkpoint53f_post
507    o modifications that affect AIM experiment results (update output.txt):
508      - no advection of S at top interface Nr (pkg/generic_advdiff)
509      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
510    o AIM pkg:
511      - include stability function into surf.Flux derivative relative to Tsurf
512      - calculate clear-sky radiation & surface temp. change (for diagnostics)
513    
514    checkpoint53e_post
515    o merged cylindrical coord configuration
516    o added rotating_tank experiment
517    checkpoint53e_pre
518    
519    checkpoint53d_post
520    o faulks upgraded: re-generate output.txt that have changed:
521       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
522    o Added Bryan and Lewis, 1979, vertical diffusivity profile
523    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
524    o added Sadourny discretization of Coriolis
525      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
526      - re-enabled use of omega3 (useAbsVorticity)
527    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
528      vector-invariant equations
529      - note: does *NOT* yet use same variable visc. for no-slip BC's.
530    o recoded the lateral boundary conditions for non-hydrostatic w, this time
531      hopefully without new bugs
532      - still to do: biharmonic friction for non-hydrostatic w
533    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
534    o regenerated output for global_ocean_ebm (using -ieee)
535    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
536      of mom_common/
537      - simple re-arrangement of instructions within computing loop
538    checkpoint53d_pre
539    
540    checkpoint53c_post
541    o new version of coupler for AIM+thSIce and Ocean models
542     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
543     - land: change Evaporation of snow
544     - aim with thSIce: fix bug in snow-precip.
545    o changes to calc_gw.F
546     - bug fix for w^2 term near the bottom boundary
547     - (hopefully) improve the lateral slip boundary condtions for use with
548        partial/looped cells
549      - because the bug fix changes two verification experiments anyway (exp5
550        and plume on slope), change the lateral boundary condition from half slip
551        to the value of no_slip_sides
552    o ebm package wasnt quite up to the parallel task. Fixed that.
553    o Adjoint of EBM package + verification
554      * TLM OK
555      * ADM not sufficient accuracy yet (needs further testing)
556    
557    checkpoint53b_post
558    o Commiting new energy balance model to repository
559      * package is pkg/ebm
560      * verif. is verification/global_ocean_ebm
561      * references are in ebm_driver.F
562    C      * X. Wang, P. Stone and J. Marotzke, 1999:
563    C        Global thermohaline circulation. Part I:
564    C        Sensitivity to atmospheric moisture transport.
565    C        J. Climate 12(1), 71-82
566    C      * X. Wang, P. Stone and J. Marotzke, 1999:
567    C        Global thermohaline circulation. Part II:
568    C        Sensitivity with interactive transport.
569    C        J. Climate 12(1), 83-91
570    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
571    C        Destabilization of the thermohaline circulation
572    C        by atmospheric eddy transports.
573    C        J. Climate 7(12), 1870-1882
574    o Will need long integration testing.
575    checkpoint53b_pre
576    
577    o created pkg/mom_common in preparation for variable viscosity code
578    o renamed and split ini_mnc_io
579    o pkg/land: only liquid water can diffuse or run-off
580    o AIM using land: soil wetness availability account for snow
581    o added printMapIncludesZeros to EEPARMS namelist
582    
583    checkpoint53a_post
584    o restore TAMC compatiility for exf_constants.h
585      (no usage of _d in .h)
586    o Additional storing in KPP in an attempt to fix
587      TAMC problem with adjoint of KPP code.
588      (no success...)
589      Identical code works fine with TAF.
590    o Fixed verification/natl_box_adjoint experiments.
591      Initial conditions for Experiments 4 and 5 are now
592      set to "SEAICE_initialHEFF=0", which is more reasonable,
593      and hence gives results closer to that of Experiment 2.
594      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
595    
596    checkpoint53
597    o stable checkpoint with up to date adjoint
598      TLM tests only run for 1st grdchk at the moment. Its unclear if
599      this is a code problem or a problem with resetting code for g_
600      variables that is being autogenerated wrong.
601      Otherwise:
602       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
603       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
604         are both still in chaos following their security messes.
605    
606    checkpoint52n_post
607    o various build (mostly genmake2) changes including:
608      - ability to build/run more easily within Cygwin and MacOS X
609      - more complicated Makefiles with a stronger dependence on Gnu Make
610    o pkg/seaice modifications
611      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
612        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
613        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
614      - changed proxy for geostrophic velocity and updated
615        verification/lab_sea/results/* accordingly
616      - removed ADI dynamic solver from pkg/seaice
617      - replaced all occurrences of 1/CSTICE or 1/CSUICE
618        they caused a segmentation fault under certain circumstances
619      - removed unused field WATR
620    o bug fix in exf-package:
621      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
622         now reflect that.
623    o small fixes in the cal-package:
624      - set reference date to first of January for the 'model'-calendar
625      - failing of cal_CheckDate in cal_FullDate now actually results in a
626        warning
627    o small modifications in exf-package to increase flexibility:
628      - change climtempfreeze from a constant to a runtime parameter that
629        is specified in data.exf_clim (default = -1.9)
630      - introduce runtime parameter windstressmax (default = 2.0) that is
631        specified in data.exf
632    o fix in pkg/thsice:
633      - update Evap (Tsf changes) to be consistent with Latent heat flux
634      - maintain snow precipitation unchanged (even if Tsf >=0).
635     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
636    
637    checkpoint52m_post
638    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
639      this does not change any of the results, because myIter=0 in swfrac always
640      lead to jwtype=2 (the default anyway), but the call makes little sense
641      as a default
642    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
643    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
644      atmospheric model (AIM) to use it ; add a "slab ocean" component.
645    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
646    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
647    o extending useSingleCpuIO option to work with new exch2 I/O format
648      - old-style, missing-tile I/O is still accessible by defining CPP
649        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
650    o monitor package can write to NetCDF files and/or STDOUT
651    o fix re-definition bug in MNC_GRID_INIT_ALL()
652    o doc/api_reference added
653      - a framework for building an API Reference Manual using all
654        the "protex" comments embedded in the code
655      - see pkg/generic_advdiff, pkg/mnc for examples
656    o MNC:
657      - make myThid the last argument for all subroutines
658      - new default for the grid files: NO halos
659      - add useMNC and other run-time flags
660      - separate per-file-group handling of the unlimited dimension
661      - early initialization of MNC w/ flags read at the eeboot stage
662        and lookup tables set in initialize_fixed
663      - write all MNC output to a freshly-created directory
664    o thermodynamics sea-ice (thsice) is now tested with testreport.
665    o test exp. advect_cs: use the standard cs32 grid ; update output.
666    o Added functionality to grdchk:
667      pick global i,j,k position (or nearest wet) where to perform check.
668    
669    checkpoint52l_post
670    o new land formulation:
671      a) use ground enthalpy as prognostic variable to ensure exact
672         energy conservation.
673      b) account for water temperature and for latent heat of freezing
674         in all processes (rain, run-off, ground storage)
675      c) compute surface and ground temperature implicitly.
676    o aim_v23 modification for new land model:
677      a) Treat separately land / ocean / sea-ice surface fluxes
678         to allow implicit computation of land & sea-ice surface temp.
679      b) add snow precipitation.
680    checkpoint52l_pre
681    
682    o fix problem (when 1 tile is empty) in min/max monitor.
683    o fix bug in timeAve (u,vZetatave in common block)
684    o no restoring terms under ice for pkg/seaice
685    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
686    o bug fix for pkg/seaice pickups
687    o change MNC call locations and add coordinate attributes
688    o mask vorticity at the corner ; affects global_ocean.cs output
689    o fix ini_curvilinear_grid ; test CS experiments with mpi
690    o aim.5l_cs: modify sea-ice fraction input file ; update output
691    o exf: Adding simple range check routine for exf fields after read
692    
693    checkpoint52k_post
694    o removed top-level directory "diags"
695      - we migrated these functions to pkg/timeave a long time ago
696    o fixed bug introduced in pkg/monitor
697    o accuracy ctrlprec = 32 insuffient for gradient checks using
698      averaged fields (I/O via cost_averages)
699      -> use ctrl.h in active_file*.F to control I/O precision.
700    o paramter list of CALL ADTHE_MAIN_LOOP
701    o added initial do_the_model_io to ecco
702    o set all ...Freq to zero after cost_final
703      taveFreq, dumpFreq, pChkptFreq
704    o MAIN and ECCO differentiability restored
705    
706    checkpoint52j_post
707    o fix nchklev in tamc.h for global_ocean...
708    o Bringing flow and store directives up-to-date
709    o Really weird thing!
710      call do_the_model_io from the_main_loop with parameters
711      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
712      TAF places a faulty re-call of initialise_varia
713      after cost_final call which should not be there!
714    checkpoint52j_pre
715    
716    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
717      error messages
718    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
719    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
720      debug output
721    o modfied mdsio_writefield.F to handle non-global files under exch2
722    o update AIM Cubed-Sphere exp (aim.5l_cs):
723      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
724    o update AIM Equatorial Channel exp:
725      use standard aim_v23 pkg and change the SST fields to be more realistic.
726    o globalFile now works with exch2
727    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
728      mon_vort3.F to make exch2 friendly with >1 tile per cube face
729    o limit timeave output for hi-res integrations
730    
731    checkpoint52i_post
732    o removed CPP_EEOPTIONS.h from verification/*/code
733    o updated the tiling for global_ocean_pressure
734    checkpoint52i_pre
735    
736    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
737      the old pkg/aim).
738    
739    checkpoint52h_pre
740    o shortened offending lines in exch2_send_rx?.template
741    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
742    o genmake2: add build & execute test for NetCDF code
743    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
744      old grid files, moved CPP_EEMACROS.h to pkg/exch2
745    o added useSingleCPUIO flag to monitor.F and mon_out.F
746    o added temporary hack for sea-ice dynamics on the cube:
747      metric terms are ignored and it is assumed that
748      there is no sea-ice on cube faces 1, 2, 4, and 5.
749    
750    checkpoint52f_post
751    o added exch2 cube routines to pkg/exch2
752    o modified hs94.cs-32x32x5 to use it
753    o added new grid files to hs94.cs-32x32x5
754    checkpoint52f_pre
755    
756    checkpoint52e_post
757    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
758      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
759    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
760      to work with implicit vertical advection and AB ;
761    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
762    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
763     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
764    checkpoint52e_pre
765    
766    o fix bug in impldiff when Nr=1 or Nr=2.
767    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
768    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
769    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
770      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
771    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
772    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
773    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
774    
775    checkpoint52d_post
776    o re-tiled many expts to allow comparison in multi-processor mode
777      - updated output accordingly
778      - changed hs94.128x64x5 to use intial T from file rather than use the
779        random number generator
780    o add infrastructure in model routines for fizhi and gridalt packages
781    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
782    o changes to permit hi-res, cubed-sphere, configuration
783      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
784      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
785      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
786        of surface winds for the cube
787      (A verification experiment, based on global_ocean.cs32x15, but with
788       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
789       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
790       complete with example surface forcing files and matlab scripts to look
791       at the output and compare it with that of global_ocean.cs32x15.)
792    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
793       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
794       to conform to the common rule.
795    o check-in the first version of the coupler + interfaces for multi-components
796       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
797       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
798       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
799       - ocean and atmos. share the same horizontal grid (no interpolation).
800       - exchanges between component and coupler is done in forward_step
801    o new verification experiment, cpl_aim+ocn:
802       coupled ocean - AIM atmosphere on cs32 grid.
803    
804    checkpoint52d_pre
805    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
806    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
807    
808    checkpoint52c_post
809    o Fixing OPTIONS files for use of exf:
810      - ALLOW_ECCO not needed
811      - ECCO_CPPOPTIONS.h should not be included from
812        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
813        as has been the case in the past
814      - All cal/exf related options are currently set in
815        single header file. Should remain so until we
816        agree on a consistent new policy.
817    o Removed all CPP options for cal package.
818      cal has no more CPP options.
819    o modified STOREs in GAD_ADVECTION
820    o corrected key comp. for passkey
821    
822    checkpoint52b_post
823    o new version: "thsice" of thermodynamic sea-ice pkg:
824     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
825     - modify fluxes but do not change theta directly;
826     - light cleaning of bulk_force pkg (still needed with thsice).
827     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
828       + output_thsice.txt to test thsice & bulk_force pkgs.
829    o put back grid & coriolis monitor output.
830    checkpoint52b_pre
831    
832    o call "do_the_model_io" at the beginning (=> dump initial state)
833    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
834    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
835      (need info on NUMBER_OF_PTRACERS)
836    o missing PTRACERS headers in some routines
837    o default tamc.h in pkg/autodiff supposed to crash
838      to ensure proper customization
839    
840    checkpoint52a_post
841    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
842      - moved surfaceTendencyTice from pkg/seaice to main code
843      - subroutine FREEZE_SURFACE now limits only surface temperature
844        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
845        => new output.txt for global_ocean.cs32x15 & global_with_exf
846      - keep the old version of FREEZE for backward compatibility;
847        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
848      - corresponding modifs for TAF directives
849    o added surface flux output variables to TIMEAVE_STATVARS
850    o time-averaged output for pkg/ptracers
851    o fix problem with ECCO-related divided adjoint
852      snapshot file was missing some ad-variables,
853      but no warning issued by TAF
854    
855    checkpoint52a_pre
856    o some bug fixes for #undef REAL4_IS_SLOW
857    
858    checkpoint52 = ecco_c52_e35
859    o after testing adjoints of checkpoint51u_post
860    
861    checkpoint51u_post
862    o this is the post-merge tag of the ecco-branch
863      (needs another clean checkout and re-testing)
864    o various natl_box_adjoint configs and results
865      but no input fields
866    o obcs adjoint not yet merged!
867    o adding ECCO global 1x1 and 2x2 degree configs
868    o updated/extended some store directives for seaice
869    o pkg/ecco now containes ecco-specific part of cost function
870    o top level routines the_main_loop, forward_step
871      supersede those in model/src/
872      previous input data.cost now in data.ecco
873      (new namelist ecco_cost_nml)
874    o in ctrl/ cleaned some cross-dependencies and updated CPP options
875    
876    checkpoint51t_post
877    o this is the pre-merge tag of the ecco-branch
878    
879    checkpoint51s_post
880    o cleanup: removed various obsolete #define-s
881    o pkg/grdchk
882      - renamed 'ph-grd 3' to 'grad-res'
883      - merged from ecco-branch
884        (remaining bug fixes for obcs gradient checks)
885      - additional high-precision output for testreport
886        (grep for 'precision_grdchk_result')
887    
888    checkpoint51r_post
889    o cleaned up or removed CPP_OPTIONS.h files
890    o updated results for some of the tests to reflect the new
891      optfiles (-ieee: -O0 instead of -O3)
892    
893    checkpoint51q_post
894    o cd_code:
895      - moved cd_scheme.F -> cd_code_scheme.F
896      - separate read_checkpoint from cd_code_ini_vars.F
897      - separated cd_code part from write_checkpoint
898      - updated AD_SOURCE, generated .flow
899      - added CD_CODE_VARS.h to the_main_loop
900      - Moving cd_code specific store dir.s to pkg/cd_code
901    o ctrl package totally restructured
902      - pack/unpack now optional and decoupled from
903        xx_/adxx_ I/O
904      - ctrl_pack/unpack cleaned
905        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
906      - confined inclusion of AD_CONFIG.h to where necessary.
907    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
908    
909    checkpoint51p_post
910    o create initial cd_code package
911      - WARNING: the initialization of fields within packages
912        is broken because INI_FIELDS (where READ_CHECKPOINT is
913        called) is called *before* PACKAGES_INIT_VARIABLES.
914        This seems to be backwards since
915        1) its important to initially zero the entire field including
916           the "halo" region
917        2) zeroing needs to be done *before* reading pickup info
918           and the pickup call might or might not happen in any
919           particular run
920      - this needs an overhaul for R2
921    o cleanup verification/*/code/GMREDI_OPTIONS.h
922    o cleanup testreport
923    
924    checkpoint51o_post
925    o bringing AD-related verif's up to date with genmake2
926      - carbon/
927      - global_ocean.90x40x15/
928      - hs.94.1x64x5/
929      - (front_relax/ )
930    o (more) consistent directory structure for AD-related verif.'s
931    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
932    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
933    o bug fix in find_alpha.F for MDJWF:
934      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
935        change rho -> rho-rhoConst
936      - replace call find_rho to find_rhonum
937    o initialisation of rFlx extended to full array (required by TAF)
938      and shifted to thermodynamics
939    o removed PTRACERS.h in ptracers routine
940    o added surfacetendencyPtr to S/R parameter list pracers_forcing
941    o Correcting initialisations for fVerU, fVerV.
942    o helping TAF to recognize dependency on kUp for
943      fVerU, fVerV
944    o Replacing delZ by delR in pkg/ctrl/
945    checkpoint51o_pre
946    
947    o undid all of cp51 pending some cleanups and discussion
948    o added the [#include "AD_CONFIG.h"] statement to all files that need
949       it for adjoint/tl #defines
950     o re-worked the build logic in genmake2 to support AD_CONFIG.h
951     o removed tools/genmake since it no longer works
952    
953    checkpoint51n_post
954    o modifications to make FREEZE flux visible to pkg/kpp
955      - moved surfaceTendencyTice from pkg/seaice to main code
956      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
957      - subroutine FREEZE now limits only surface temperature
958        (this means new output.txt for global_ocean.90x40x15,
959         global_ocean.cs32x15, and global_with_exf)
960    o added surface flux output variables to TIMEAVE_STATVARS
961    
962    checkpoint51n_pre
963    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
964    o added [#include "AD_CONFIG.h"] to all files that use the following
965      defines:
966      - ALLOW_ADJOINT_RUN
967      - ALLOW_TANGENTLINEAR_RUN
968      - ALLOW_ECCO_OPTIMIZATION
969    
970    checkpoint51m_post
971    o incorporating changes to get TAMC/TAF working in genmake2
972      - added new TAMC/TAF targets to the Makefile
973      - various cleanups related to package handling
974      - these changes should have no impact on the forward model
975    
976    checkpoint51l_post
977    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
978     - faster algorithm for cal_addtime.F
979     - higher precision arithmetic, where needed
980     - pkg/exf *startdate variables changed from calendar date to
981       model integration time
982    
983    checkpoint51l_pre
984    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
985    o enable to apply restoring on S & T only in a latitude band.
986    o update output (external_forcing_surf modif. change truncation errors)
987       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
988    
989    checkpoint51k_post
990    o change default to: useNHMTerms=.FALSE.
991     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
992       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
993     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
994        exp1, ideal_2D_oce
995     - change data file of oceanic exp (leave the results unchanged for now)
996       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
997    o set gravitySign automatically according to the vertical coordinate used
998      (and change sign: back to "logical" value: +1 when R increases downward)
999    o added an include barrier to the default CPP_OPTIONS.h and
1000      removed the #include "PACKAGES_CONFIG.h" from it
1001    o fix a bug in mom_fluxform (from chk51j_post)
1002    
1003    checkpoint51j_post
1004    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1005    o adjusted some flow directives (dynamics, thermodynamics)
1006    o added cubed-sphere case to test cost function
1007    o heckpoint_lev?_directives.h now include
1008      pkg-specific directives, whenever those are enabled.
1009    o Moving pkg-specific flow directives to corresponding pkg
1010      Moving pkg-specific differentiation list to corresponding pkg
1011      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1012      ---> conventions are
1013           - pkg_ad.flow
1014           - pkg_ad_diff.list
1015           - pkg_ad_check_lev?_dir.h
1016    
1017    checkpoint51i_post
1018    o merge of the branch-genmake2
1019      - knowingly breaks the older genmake
1020      - automatic generation of all ALLOW_${PKG_NAME} defines
1021      - new testreport supersedes older testscript
1022    o large number of package inclusion and header cleanups
1023    checkpoint51i_pre
1024    
1025    o new output for adjoin of global ocean vector invariant
1026    o fix for checkpoint of thermodynamic seaice and bulk_force
1027    o Steph gchem various cleanups
1028    
1029    checkpoint 51h_pre
1030    o fixed some single quotes
1031    o modify gchem pkg to be more versatile
1032    o modifications to clean up dic pkg
1033    o add pkg/cfc
1034    
1035    checkpoint51g_post
1036    o provide links for ARPACK and ADM*TLM
1037    o start removing verification/vero/
1038    o update AD-related stuff
1039      (in particular some IF-statements in model/src/ routines)
1040    o adding to verification/global_ocean.90x40x15/ adjoint of
1041      vector invariant setup
1042    
1043    checkpoint51f_post
1044    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1045    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1046      of tracer Green's fucntions for ocean inversion project.
1047    
1048    checkpoint51f_pre
1049    o Added on-the-fly spatial interpolation capability
1050        "USE_EXF_INTERPOLATION" to pkg/exf.
1051      - This is a temporary Cartesian-grid hack until
1052        the super-duper ESMF coupler becomes available.
1053      - See verification/global_with_exf/README for usage example.
1054      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1055        flags and modified pkg/seaice accordingly.
1056    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1057        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1058        non-local transport term.
1059    
1060    checkpoint51e_post
1061    o pkg/mom_vecinv:
1062      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1063      - add time-ave diagnostic of vorticity advection.
1064    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1065    o atmospheric geopotential: - include water vapor effect;
1066                                - use p^kappa in p* scaling.
1067    o land pkg: read initial state from files.
1068    o AIM : add stratospheric drag in the upper level
1069    
1070    checkpoint51d_post
1071    o change function ILNBLNK (=> last non-blank char.) to return zero
1072      (instead of the string length) when the string. char is empty
1073    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1074    o modif's to restore TAMC compatibility
1075      - avoid "_d" constructs in PARAMETER declarations
1076      - avoid interrupting lines by comment lines
1077    o Use cluster local disks for purely local I/O
1078      vs. globally visible disks needed for ctrl stuff
1079      (merged from ecco-branch)
1080      - new active_file_loc... and mdsio_..._loc routines
1081      - affected packages: autodiff, ctrl, grdchk, mdsio
1082    
1083    checkpoint51c_post
1084    o introducing integer flag debugLevel
1085      - debLevZero: suppress all output
1086      - debLevA: standard
1087      - debLevB: equivalent to current debugMode=.TRUE.
1088    o introducing pathname variable mdsioLocalDir for mdsio
1089      that can be specified at runtime
1090      (relevant for cluster I/O to local disk)
1091    `
1092    >>>checkpoint51b_post
1093    adjoint of ptracers
1094    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1095    o extended state in checkpoint_lev?, etc.
1096    o alternative ctrl/cost with tr1 or ptracer
1097    o new comlev1_bibj_ptracers
1098    o new ptracers.flow
1099    o made ptracers_forcing same as external_forcing_s
1100    o added verification for adjoint with ptracers
1101      - adm. grdchk fail so far
1102      - tlm. grdchk OK
1103      - checked tapelev/comlev recomputations: OK
1104    <<<checkpoint51b_pre
1105    
1106    checkpoint51a_post
1107    o added code for biogeochemistry package
1108      - new pkgs: dic, gchem
1109      - new subroutine in ptracers
1110    o modify code for biogeo packages
1111      - in model/src and pkg/ptracers
1112    
1113    checkpoint51
1114    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1115      - autodiff, ctrl, exf, grdchk, seaice
1116      kept separate packages
1117      - cost, ecco, obcs
1118    o updating verification/internal_wave, verification/lab_sea
1119      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1120    
1121    checkpoint50i_post
1122    o Preparing next differentiable checkpoint and sync
1123      of MAIN vs. ecco-branch
1124      - 1st step: this one is differentiable
1125      - 2nd step: next(! not this) checkpoint will have updated packages
1126                  from ecco-branch)
1127    
1128    checkpoint50h_post
1129    o new package "land": provide surface BC for AIM.
1130    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1131    o AIM: use true log-P extrapolation for near surface temp (= as in
1132        F.Molteni paper) ; update aim.5l_cs output.
1133    o New variable in PARM03 for more flexible pickups
1134    o somewhat cleaned package initialisation sequence for
1135      ctrl/ cost/ ecco/ in packages_... routines
1136    
1137    checkpoint50g_post
1138    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1139      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1140      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1141        made the default because of faster convergence than ADI
1142    
1143    checkpoint50f_post
1144    o exf totally restructured
1145      - replaced all exf_set_ routines by one generic exf_set_gen.F
1146        and made sure it's still differentiable
1147      - split exf_getffields.F into new exf_bulkformulae.F
1148      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1149      - updated adjoint/makefile and relevant verif. accordingly
1150    
1151    checkpoint50f_pre
1152     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1153          + change Evap over land. (update aim.5l_cs output)
1154     o added missing .cvsignores and made uniform across expts
1155     o changed configuration of tidal_basin_2d expt
1156     o added pkg/debug functions for tracing code in fatal crashes
1157     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1158     o new fn in pkg/monitor to stop model if solution grows too big
1159     o removed lots of single quotes from comments
1160    
1161    checkpoint50e_post
1162    o make KPP work with PTRACERS
1163     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1164       nearly a copy of kpp_transport_s
1165     - there is no analogue to SurfaceTendencyS, so I have to use
1166       gPtr(of the surface layer) instead
1167    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1168    checkpoint50e_pre
1169    
1170    checkpoint50d_post
1171    o change kpp output from multiple-record state files to single-record state
1172      files analogous to write_state.F
1173    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1174      analogous to the cg2d-related output.
1175    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1176      so that writing to internal file fn (with length 512) fails.
1177    checkpoint50d_pre
1178    
1179    checkpoint50c_post
1180    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1181    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1182    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1183    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1184    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1185    
1186    checkpoint50c_pre
1187    Merging from release1_p13:
1188    o bug fix for pkg/seaice dynamic solver
1189    o Added SEAICE_initialHEFF to pkg/seaice
1190    
1191    checkpoint50b_post
1192    o store u*,v* in gU,V instead of in guNm1,gvNm1
1193    o in order to put the momForcing out of the Adams-Bashforth:
1194      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1195      to timestep.F
1196    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1197    o re-generate output for highly sensitive test-exp:
1198       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1199    
1200    checkpoint50b_pre
1201    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1202    o corrected CPP option mismatch in exf_Bulk... functions for case
1203      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1204    
1205    checkpoint50a_post
1206    o Bug fix for merging between c50 and KPP.
1207      ikey was passed from thermodynamics to kpp_calc via
1208      common block rather than being recomputed in kpp_calc,
1209      in contradiction with new key itdkey.
1210      New key ikppkey created, and tamc.h headers updated.
1211    
1212    checkpoint50
1213    - 2nd step of merge with ecco-branch:
1214      merge changes in ecco-branch back into main trunk
1215    - bug fix in find_alpha
1216    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1217    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1218    - merged some sliced AD support routines
1219    
1220    checkpoint49
1221    merged from ecco-branch:
1222    o exf:
1223      - Enable initialisation of forcing fields to constant
1224        (runtime) values.
1225      - in exf_getffields.F
1226        Reduce i-/j-loop to interior domain, discarding overlaps.
1227        That also fixes wrong TAF-key computations for key_1, key_2
1228        with bulf formulae.
1229      - exf_init.F modify #ifdef for exf_init_evap
1230      - exf_getffieldrec.F, ctrl_getrec.F
1231        The following INT-usages are not safe:
1232          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1233          fldcount = int(fldsecs/fldperiod) + 1
1234        and were modified.
1235    o autodiff: checkpoint_lev...
1236      - updated storing for bulk formulae (some arrays were missing)
1237      - added state for seaice package
1238      - synchronized with main branch
1239    o DIVA:
1240      Modif.s in
1241      - the_main_loop.F
1242      - the_model_main.F
1243      and added cost_final_restore.F cost_final_store.F
1244      o With these changes, it is possible to fully separate
1245        the first forward run to compute the cost function (mdthe_main_loop)
1246        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1247        into separate model executions.
1248        This enables better tuning of DIVA to given queue sizes.
1249      o Loss of cost function value in consecutive DIVA runs is
1250        fixed by storing to 'costfinal' file.
1251      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1252        beginning/end of adjoint integration is accounted for.
1253      The current changes apply to TAF-1.4.26.
1254      TAF has one remaining bug, requiring one manual change
1255      (see MITgcm manual).
1256    o cal: synchronized between MAIN and ecco-branch
1257    
1258    checkpoint48i_post
1259    o Changes to restore differentiability of code w.r.t. previous tag
1260      (mostly adding new routines to make list and replacing
1261      pressure by totPhiHyd).
1262    o Updated and merged grdchk package
1263      - has both ADM and TLM checks
1264      - works for single- and multi-proc.
1265      - output cleaned
1266      - worked successfully for parallel DIVA
1267    o genmake:
1268      - Adding -platform=SP4
1269      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1270    o Modif. for DIVA:
1271      ctrl_unpack should not be called in intermediate DIVA interval.
1272      (similar thing would apply for active files such as
1273      tbar, sbar, psbar, which should not be reinitialised;
1274      only relevant for ecco-branch)
1275    
1276    checkpoint48h_post
1277    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1278    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1279    o Added SEAICE_initialHEFF to pkg/seaice
1280    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1281    
1282    checkpoint48g_post
1283    --- EOS:
1284    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1285      store total Potential in totPhyHyd for diagnostics & EOS.
1286    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1287    --- Pressure/geopotential gradient:
1288    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1289    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1290      ( changes results of global_ocean_pressure )
1291    o NLFS + z-coord.: add eta*Rho' contribution.
1292    o accurate phiHyd when using interface-W at the middle between 2 centers
1293     ( changes results of ideal_2D_oce )
1294    o includes r* 2nd term in potential gradient.
1295    
1296    checkpoint48f_post
1297    Merging from release1_p12:
1298    o Modifications for using pkg/exf with pkg/seaice
1299      - improved description of the various forcing configurations
1300      - added basic radiation bulk formulae to pkg/exf
1301      - units/sign fix for evap computation in exf_getffields.F
1302      - updated verification/global_with_exf/results/output.txt
1303    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1304      (SBO) core products, including oceanic mass, center-of-mass,
1305      angular, and bottom pressure (see pkg/sbo/README.sbo).
1306    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1307      to avoid negative values in shallow regions.
1308      - updated verification/natl_box/results/output.txt
1309      - updated verification/lab_sea/results/output.txt
1310    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1311    o Added useSingleCpuIO option (see PARAMS.h).
1312    o Updated useSingleCpuIO option in mdsio_writefield.F to
1313      work with multi-field files, e.g., for single-file pickup.
1314    o pkg/seaice:
1315      - bug fix in growth.F: QNET for no shortwave case
1316      - added HeffFile for specifying initial sea-ice thickness
1317      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1318    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1319      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1320    o pkg/seaice:
1321      - adjoint-friendly modifications
1322      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1323    
1324    checkpoint48e_post
1325    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1326    o dynamics: change definition of computational domain & adapt mom_fluxform
1327      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1328    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1329        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1330        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1331        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1332        inverted_barometer solid-body.cs-32x32x1
1333      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1334    
1335    checkpoint48d_post
1336    o in preparation for r*:
1337     a) use pre-computed gradient of hydrostatic potential:
1338        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1339     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1340        => affects results of glob_oce_pressure (different truncation error)  
1341      update output.txt of ideal_2D_oce & global_ocean_pressure
1342    
1343    checkpoint48d_pre
1344    o in preparation for r*:
1345      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1346      pass the 2 comp. of the grad. as arguments to momentum S/R.
1347      but for the moment, only used if it does not change the results.
1348    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1349    
1350    checkpoint48c_post
1351    Modifications in treatment of initial flux forcing controls
1352    to avoid extra storing of flux fields.
1353    
1354    checkpoint48c_pre
1355    o Added tidal_basin_2d experiment (currently 1D!)
1356    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1357    
1358    checkpoint48b_post
1359    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1360     (modification to pressure gradient not yet implemented)
1361    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1362      (for U & V) that are used for vertical advection of momentum.
1363    
1364    checkpoint48a_post
1365    o In preparation for r*, use temp. array to compute vertical transport
1366       in flux-form momentum pkg. => change results of few test-exp.
1367      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1368                        lab_sea, natl_box & plume_on_slope
1369    
1370    checkpoint48
1371    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1372    
1373    checkpoint47j_post
1374    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1375    o moved adexch from forward_step to addummy_in_stepping
1376    o added exch in ctrl_map_...
1377    o aveFreq.=0. at end of cost_final to avoid overwrite in
1378      reverse checkpointing loop
1379    o Yet more changes in gmredi:
1380      * adgmredi_calc_tensor
1381        avoiding all recomputation of gmredi_slope_limit
1382      * adgmredi_x/y/rtransport
1383        added flag for excessive storing to avoid recomp. of
1384        u/v/rtans, dTdx/y/z
1385        -> this is not really necessary and very memory-consuming
1386      * adgmredi_slope_psi:
1387        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1388      * gmredi_slope_limit
1389        re-activated full calculation of taperfct for case 'ac02'
1390    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1391    
1392    checkpoint47i_post
1393    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1394    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1395      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1396    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1397    o gmredi: fix few bugs.
1398    
1399    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1400    This will be a good checkpoint to plug into the ecco-branch.
1401    o few modif.'s to get latest version adjointed
1402      (mainly kick out code in ini_linear_phisurf)
1403    o modif's to run adjoint with exactConserv
1404    o case GM_BOLUS_ADVEC should be cleaned
1405      S/R gmredi_slope_psi should be cleaned
1406    o verification/carbon now has exactConserv=.TRUE.
1407    
1408    checkpoint47g_post
1409    o time-average AIM output: becomes independent from statvars time-average
1410      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1411    o After TAF bug fix:
1412      Tested adjoint of gmredi package.
1413      Tests were done with checkpoint47 rather than with latest
1414      checkpoint47f_post since the latter is broken for the adjoint
1415      verification/carbon/ contains both ADM and TLM gradient checks.
1416    Here they are, before they get changed/lost/stolen.
1417    Mostly modif.'s to fix numerical sensitivities.
1418    Gradient checks OK for
1419    - GM_taper_scheme:
1420      * clipping
1421      * ac02
1422      * linear
1423      * glw91
1424      * dm95
1425      * ldd97
1426    - GMREDI_OPTIONS:
1427      * GM_VISBECK_VARIABLE_K
1428      * GM_NON_UNITY_DIAGONAL
1429      * GM_EXTRA_DIAGONAL
1430      * GM_BOLUS_ADVEC
1431    in conjunction with data.gmredi parameters to be checked in
1432    in a few minutes under verification/carbon/code/
1433    
1434    checkpoint47f_post
1435    Merging from release1_p10:
1436    o modifications for using pkg/exf with pkg/seaice
1437      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1438        and SEAICE_EXTERNAL_FLUXES
1439      - pkg/exf CPP options EXF_READ_EVAP and
1440        EXF_NO_BULK_COMPUTATIONS
1441      - usage examples are Experiments 8 and 9 in
1442        verification/lab_sea/README
1443      - verification/lab_sea default experiment now uses
1444        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1445    
1446    checkpoint47e_post
1447    o created a tag prior to creating a branch
1448    
1449    checkpoint47d_post
1450    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1451      at the bottom boundary had an erroneous half slip boundary condition
1452    o added bottom drag and no slip boundary condition capabilities to
1453      oceanic pressure coordinates code
1454    o added new verification experiment global_ocean_pressure, this experiment is
1455      also described in the tutorial section of the manual
1456    checkpoint47d_pre
1457    
1458    checkpoint47c_post
1459    o Added a verification experiment for a global cubed-sphere ocean run
1460      -  verification/global_ocean.cubed32x32x30
1461      -  uses pkg/therm_seaice and pkg/bulk_forcing
1462    
1463    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1464    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1465      when using P-coordinate; only implemented for atmospheric config.
1466    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1467      NOTES: requires option NONLIN_FRSURF to be "#define".
1468    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1469    
1470    checkpoint47b_post
1471    Merging from release1_p9:
1472    o pkg/seaice
1473      - removed GOTO's and added taf directives
1474      - double precision constants to reduce the g77 (Linux)
1475        to F77 (SGI) differences reported in release1_p8
1476    o tools/genmake
1477      - added SGI options
1478    o verification/testscript
1479      - updated to that of checkpoint47a_post
1480    o verification/global_ocean.90x40x15/input/eedata
1481      - modified for SGI f77 compatibility
1482    o verification/lab_sea
1483      - added description of sea-ice model
1484      - added missing matlab routines
1485      - added test of thermodynamics parallelization
1486    
1487    checkpoint47a_post
1488    o new pkg: aim_v23
1489     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1490       for now, keep the same surface forcing as before.
1491     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1492     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1493     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1494    o add diagnostic of surface correction term in monitor output
1495    
1496    o bulk_force and therm_seaice
1497    - Two packages:  bulk_force (Bulk forcing)
1498      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1499    - Earlier integration from Stephaine Dutkiewicz
1500      and Patrick Heimbach.
1501    - Two ifdef statements for compile time,
1502       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1503    
1504    checkpoint47
1505    differentiable version of checkpoint46n_post
1506    o bug fix in quasihydrostaticterms
1507    o * "clean" adjoint code (in terms of extensive recomputations)
1508        can now be obtained for all GMREDI options (i.e. for
1509        - GM_VISBECK_VARIABLE_K
1510        - GM_NON_UNITY_DIAGONAL
1511        - GM_EXTRA_DIAGONAL
1512        - GM_BOLUS_ADVEC )
1513      * However, wrong gradient check problem remains unsolved.
1514      * New CPP options have been introduced for different
1515        tapering schemes
1516    o external_fields_load now part of differentiation list
1517    o pressure needs multiple storing;
1518      would be nice to have store_pressure at beginning or
1519      end of forward_step, e.g. by having phiHyd global (5-dim.)
1520      (NB: pressure is needed for certain cases in find_rho,
1521      which is also invoked through convective_adjustment).
1522    o recomputations in find_rho for cases
1523     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1524    o #define ATMOSPHERIC_LOADING should be differentiable
1525    o ini_forcing shifted to begining of initialise_varia
1526    o Incorporating QNVS line search routines into MITgcm
1527      (this is separate code, and therefore not under pkg)
1528      lsopt/, optim/
1529    o Updated verification/carbon/
1530      - #define GM_VISBECK_VARIABLE_K
1531      - GM_taper_scheme    = 'ldd97'    
1532    
1533    checkpoint46n_post
1534    Merging from release1_p8:
1535    o verification/natl_box:
1536      updating new external_fields_load routine
1537    o New package: pkg/seaice
1538      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1539      The sea-ice code is based on Hibler (1979-1980).
1540      Two sea-ice dynamic solvers, ADI and LSR, are included.
1541      In addition to computing prognostic sea-ice variables and diagnosing
1542      the forcing/external data fields that drive the ocean model,
1543      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1544      The implied surface heat flux is then stored in variable
1545      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1546      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1547      non-local transport term.  Because this call precedes model
1548      thermodynamics, temperature under sea-ice may not be "exactly" at
1549      the freezing point by the time theta is dumped or time-averaged.
1550      N.B.: fairly large differences in accuracy occur across
1551            different platforms/compilers; comparison between
1552            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1553            generated output gives:
1554       T           S           U           V
1555      C D M    c        m  s        m  s        m  s        m  s
1556      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1557      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1558      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1559    
1560      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1561    o GAD:
1562      - generated new common blocks to account for call of
1563        same gad routines with differing traceridentities
1564        (needed to modify tracerIdentity indices in GAD.h)
1565      - generated separate common blocks for case useCubedSphereExchange
1566        (Department of Futurology)
1567      - parameter lists to gmredi_?transport: added tracerIdentity
1568      - added new key indices to tamc.h
1569    o external_fields_load:
1570      - added this routine to TAF list
1571      - needed to make some common blocks global and additional storing
1572        along the same lines as exf package (checkpoint_lev?_directives.h)
1573    o exf:
1574      updated external forcing package
1575      - bug fixes carried over from ecco-branch
1576        (missing OBCS_OPTIONS.h in two routines)
1577      - enable easy to use "no forcing".
1578      - added exf I/O for atmospheric loading
1579      - added exf I/O for runoff data
1580      - transfered scaling between exf <-> MITgcm to exf namelist
1581    o Adding new verification experiment global_with_exf.
1582      This verification experiment is almost identical to the
1583      global_ocean.90x40x15 experiment, except that it uses
1584      the exf (and cal) package instead of the
1585      external_fields_load routine (cf README file).
1586    
1587    checkpoint46m_post
1588    o modified testscript to return -- when there are no lines of "%MON" output
1589    o added new flag "quasiHydrostatic" for QH mode
1590      and new routine quasihydrostaticterms()
1591    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1592      New routine: mom_u_coriolis_nh()
1593    o fixed sign of non-hydrostatic metric terms in u and v equations.
1594      Depend on correct sign of gravitySign.
1595    o added work.pc* to .cvsignore in aim directories using ifc
1596    o introduced flag for controllin non-hydrostatic metric terms
1597    o removed gravitySign from PARM04
1598    o switched to g77/ifc from pgf77 in aim experiments
1599    
1600    checkpoint46l_post
1601    o made convective adjustment work with pressure coordinates:
1602     - changed the direction of k-loop in convective_adjustment.F for the
1603       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1604     - adjusted the reference pressure k-index in convective_adjustment.F
1605     - adjusted the convection condition in convect.F (in analogy to
1606       calc_ivdc.F)
1607     - convective_adjustment no longer computes anything on the halos
1608     - removed the warnings about negative salinity from find_rho.F and
1609       find_alpha.F; instead the new routine look_for_neg_salinity, called
1610       at the beginning of find_rho, find_alpha, and find_beta, does a
1611       check of the entire slice, if CPP-option
1612       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1613    checkpoint46l_pre
1614    
1615    checkpoint46k_post
1616    o fixed the verification/global_ocean.90x40x15 experiment:
1617     - new bathymetry (the world according to A., JMC, and M.)
1618     - new initial fields and forcing fields (*.bin files)
1619     - new POLY3.COEFFS (for the next release one should switch to a full
1620       equation of state: JMD95P or MDJWF)
1621     - fixed several errors and redundancies in the data file
1622     - experiment uses looped cells
1623     - added matlab directory with diagnostic scripts for plotting of output
1624    
1625    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1626     - read AIM physics parameters from a file (data.aimphys)
1627     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1628    
1629    checkpoint46j_post
1630    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1631    o move wVel computation at the end of the time step, in S/R integr_continuity
1632    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1633    o update timeave pkg for wVel diagnostic.
1634    checkpoint46j_pre
1635    
1636    checkpoint46i_post
1637    o Clean up AIM package (and keep the results unchanged):
1638      include CPP_OPTION and use IMPLICT NONE in all routines ;
1639      declare all the variables _RL ; use _d 0 for all numerical constants.
1640      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1641    
1642    checkpoint46h_post
1643    o cleaned up the use of rhoNil and rhoConst.
1644      - rhoNil should only appear in the LINEAR equation of state, everywhere
1645        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1646        and the dynamical equations are all divided by rhoConst
1647    o introduced new parameter rhoConstFresh, a reference density of fresh
1648      water, to remove the fresh water flux's dependence on rhoNil. The default
1649      value is 999.8 kg/m^3
1650    o cleanup up external_forcing.F and external_forcing_surf.F
1651      - can now be used by both OCEANIC and OCEANICP
1652    checkpoint46h_pre
1653    
1654     Added code to convert surface volume flux (fresh water) into
1655     a mass flux when using P coordinates in the ocean (OCEANICP).
1656     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1657    
1658    checkpoint46g_post
1659    o Include a new diagnostic variable phiHydLow for the ocean model
1660      - in z-coordinates, it is the bottom pressure anomaly
1661      - in p-coordinates, it is the sea surface elevation
1662      - in both cases, these variable have global drift, reflecting the mass
1663        drift in z-coordinates and the volume drift in p-coordinates
1664      - included time averaging for phiHydLow, be aware of the drift!
1665    o depth-dependent computation of Bo_surf for pressure coordinates
1666      in the ocean (buoyancyRelation='OCEANICP')
1667      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1668        Theta, Salinity, and Pressure in the parameter list. This routine is
1669        presently contained in find_rho.F. This routine does not give the
1670        correct density for 'POLY3', which would be a z-dependent reference
1671        density.
1672    o cleaned up find_rho
1673      - removed obsolete 'eqn' from the parameter list.
1674    o added two new verification experiments: gop and goz
1675      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1676    checkpoint46g_pre
1677    
1678    checkpoint46f_post
1679    o Enable tangent linear (forward mode) gradient checks:
1680      - extended active file handling to g_... files
1681      - added TANGENT_SIMULATION to theSimulationMode
1682      - extended grdchk package accordingly
1683    o added tangent linear setup in verification/carbon/code_ftl
1684    o added adjoint setup in verification/front_relax/code_ad
1685    
1686    checkpoint46e_post
1687    o Added new equation of state -> MDJWF
1688      - EOS of McDougall et al., 2002, JAOT, submitted
1689      - caveat: the equation of state is only valid for a smaller (more
1690        realistic?) range of values than JMD95P/Z and UNESCO
1691      - added masks to the calculation of pressure in store_pressure
1692      - added more check values for density in check_eos (ini_eos.F), some of
1693        the old check values are out of the range of the MDJWF-eos, so don't
1694        expect perfect matches for those
1695    checkpoint46e_pre
1696    
1697    checkpoint46d_post
1698    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1699      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1700      case of pressure coordinates. eosType='JMD95Z' in
1701      combination with buoyancyRelation='OCEANICP' now causes an error.
1702    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1703      in find_alpha/beta.
1704    checkpoint46d_pre
1705    
1706    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1707      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1708    
1709    checkpoint46c_post
1710    o Changes necessary for ocean in p-coordinates
1711     -  Added new buoyancy relation = 'OCEANICP'
1712     -  Added new parameters = gravitySign (this used to be contained inside
1713        the factor dRdZ which I added when we first switched to R coordinates).
1714     X GM/Redi is not compatible (yet)
1715     X bottom drag and no-slip need to be debugged.
1716    checkpoint46c_pre
1717    
1718    checkpoint46b_post
1719    o Added new equation of state -> JMD95Z and JMD95P
1720      - EOS of Jackett and McDougall, 1995, JAOT
1721      - moved all EOS parameters into EOS.h
1722      - new routines ini_eos.F, store_pressure.F
1723    o Added UNESCO EOS, but not recommended because it requires
1724      in-situ temperature (see JMD95)
1725    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1726      unesco.f to be used with POLY3
1727    checkpoint46b_pre
1728    
1729    checkpoint46a_post
1730    o Added (atmospheric) pressure loading
1731      - new field in FFIELDS.h, etc...
1732      - new cpp flag ATMOSPHERIC_LOADING
1733    o Changed hFacC to _hFacC in calc_phi_hyd.F
1734    o Added SHORTWAVE_HEATING to some files for consistency
1735    checkpoint46a_pre
1736    
1737    checkpoint46
1738    further merges from release1_p5
1739    o new ctrl package
1740      - adopted from ECCO environment to enable optimization
1741      - added Eliassen Palm fluxes to controls
1742    o added Eliassen Palm flux controls to gradient check package
1743    o cost package
1744      - Compatible with new ctrl package
1745      - added Eliassen Palm cost hooks
1746      - modif's of existing cost functions
1747    o Adjoint-related bug fixes in kpp:
1748      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1749      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1750    o autodiff package
1751      - flow directives:
1752        + new for S/R do_the_model_io
1753        + enhanced for S/R checkpoint
1754        + new gmredi.flow
1755      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1756        disable adcommon.h/g_common.h by default.
1757      - fixed problem for adjoint of global_max
1758    o modified verification/carbon/
1759    o New setup for adjoint of global_ocean
1760    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1761    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1762    o incorporated hooks for sponge layer code (external_forcing.F)
1763    
1764    checkpoint45d_post
1765    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1766    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1767      (affects plume_on_slope "cg2d" output)
1768    o add new parameter deltaTfreesurf for free-surface time stepping
1769    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1770    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1771    o change phiMin in exp1 (to agree with documentation)
1772    o add new flags:
1773     - T,S forcing inside/outside Adams-Bashforth
1774     - turn off temp,salt advection and/or forcing
1775     - for each tracer, define internal flag for multiDimAdvection & A-B
1776    o monitor: change definition of KE to check conservation of Energy
1777    
1778    checkpoint45c_post
1779    o Removed f90 comments ("!")
1780    o Modified initialisations to enable exf package for MITgcm
1781      (without invoking ECCO_PACKAGE).
1782    o modifications to gradient check package (Martin Losch)
1783      - enable centered differences
1784      - modified format of standard output
1785    
1786    checkpoint45b_post
1787    o cleaned exchange calls in cg2d
1788    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1789    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1790      to configure barotropic setup (Martin Losch)
1791    o moved some initialisations within bi,bj loop in dynamics
1792      (TAF flow dependency)
1793    o in initialise_varia, moved call packages_init_variables
1794      before convective_adjustment_init
1795      (corresponding adjustment of TAF tape initialisation).
1796    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1797    
1798    checkpoint45a_post
1799    o compute Rho over the whole domain (extend iMin,jMin indices)
1800    o specific exchange for X-slice domain (case Ny=1)
1801    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1802    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1803    
1804    checkpoint44h_post = checkpoint45
1805    o Fix to restore differentiability:
1806      place at which packages_init_variables is called in
1807      initialise_varia is crucial for reverse control flow.
1808    o modifications in GMRedi to enable stable adjoint
1809      (corresponding modif's in thermodynamics, dynamics)
1810    o added missing hook for sponge layer code in external_forcing
1811    o modified test cost functions
1812    o storing in gad_advection (plus removal of write(0,*)!
1813    o missing headers TR1.h added in convective_adjustment routines
1814    o errorMessageUnit set non-equal zero in eeboot
1815      (conflict on some platforms, e.g. IBM SP3)
1816    o modified carbon verif.
1817    
1818    checkpoint44h_pre
1819    o vertical grid option: allow to put the Interface at the middle between
1820      2 cell-centers ; replace delZ in pkg/kpp by drF.
1821    o GM Advective form: Tracers are advected using the residual transport (=
1822      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1823    
1824    checkpoint44g_post
1825    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1826      results) ; ifdef missing in thermodynamics.F
1827    
1828    checkpoint44f_pre,checkpoint44f_post
1829    o added PTRACERS package
1830      This allows an arbitrary number of passive tracers to be integrated
1831      forward simultaneously with the dynamicaly model.
1832      + Implemented so far:
1833        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1834        - I/O and checkpointing
1835        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1836      + Not implemented so far:
1837        - KPP
1838        - OBCS
1839      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1840        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1841        line in data.pkg.
1842      + This package is disabled by default since it increases storage.
1843    
1844    
1845    o testscript: added -cleanup option
1846    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1847                 b) enable to filter 2D fields.
1848    
1849    checkpoint44e_pre,post
1850    o re-wrote convective adjustment to use pre-calculated weights
1851      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1852      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1853      Original calls to convect() still in place.
1854    
1855    chkpt44d_pre,post
1856    o added missing EXCLUDE_MONITOR flags
1857    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1858      (incompatible typ in MIN/MAX expressions caused problems
1859      on IBM SP3)
1860    o in genmake added variable MAKEDEPEND
1861      plus resetting for case SunOS
1862    o added timer_stats.c routine for IBM SP3
1863    o removed variables in dynamics
1864    !!! I forgot to create tag chkpt44d_pre !!!
1865    !!! But chkpt44d_pre = chkpt44c_post    !!!
1866    
1867    o real fresh water flux implemented with non-linear free-surface.
1868    
1869    chkpt44c_pre,post
1870    o few fix (mask in shap_s2, EmPmR in external_field_load,
1871      USE_NATURAL_BCS in solve_for_P);
1872    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1873    
1874    checkpoint44b_pre/_post
1875    o merge of relevant stuff from the ecco-branch:
1876      - genmake: removed $S64 overwrite for case SunOS
1877      - pkg/exf: update and corrections for field swapping and obcs
1878      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1879                  harmonized between ECCO and MITgcm
1880      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1881                      updated checkpointing_lev... lists for obcs
1882      - model/src: minor changes in forward_step, plot_field
1883                   added directive for divided adjoint in the_main_loop
1884      - pkg/mdsio: added mdsio_gl_slice
1885    
1886    o check parameters & config (chkpt44a_pre,post)
1887    o OBC and NonLin_FrSurf.
1888    
1889    checkpoint44
1890    o fix bug in mom_vi_del2uv
1891    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1892    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1893    o update AIM experiments (NCEP input files)
1894    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1895    o added some stuff for AD
1896    
1897    checkpoint43
1898    o added two new advection tests
1899    o added global 4x4 degree ocean test
1900    o added test of H&S94 with free surface on cube
1901    o some final mods for gradient check, adjoint,...
1902    
1903    checkpoint42
1904      Fixed AD-related problems:
1905    o Store directives up-to-date with re-arranged Adams-Bashforth
1906      (mainly thermodynamics.F)
1907    o New store directives for multi-dim. advection schemes
1908      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1909      * new common block and key passkey
1910      (mainly gad_advection.F)
1911    o Modified store directives for split of dynamics/thermodynamics
1912      for the case ALLOW_KPP
1913    o Cleaned argument list for timestep_tracer.F
1914    
1915    checkpoint41
1916    o re-formatted/added comments in prologues of key subroutines
1917      to work with protex
1918    
1919    checkpoint40
1920    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1921    o added FLT (floats) package from Arne along with demo. experiment
1922    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1923      implementation of forward-in-time forcing terms
1924    o more mods for non-linear free-surface including new variable
1925    o modified multi-dim method to work on cube
1926    o bug fix in KPP (from DM)
1927    
1928    checkpoint40pre9
1929    o added DST advection schemes
1930    o fix MPI bug on SGI's
1931    o modifications for non-linear free-surface
1932    o fixed conditionals for fixed flow/passive tracer only mode
1933    o added tension/strain form of stress tensor
1934    o changes to commenting of arguments for TAF/TAMC
1935    o added/updated many matlab scripts
1936    o added multi-dimensional advection method for tracers
1937      
1938    checkpoint40pre8
1939    o new package rw/
1940      Added method for dumping intermediate local arrays:
1941      mdsio_writetile - same as mdsio_writefield except works from inside
1942                        bi,bj loop
1943      mdsio_writelocal - same as mdsio_writetile except works for local
1944                         arrays
1945      write_local_r? - higher-level wrapper for mdsio_writelocal
1946      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1947      Example given at end of mom_vecinv.F that dumps some local arrays.
1948    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1949      control flux-form versus vector invariant code.
1950      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1951      or genmake -DISABLE ...
1952    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1953      (additional storing is now needed for case vecinv;
1954      currently nothing implemented to switch this storing off
1955      in case fluxform is used since no CPP flag available).
1956    
1957    checkpoint40pre7
1958    o bug fix in dynamics.F
1959      calc_viscosity called before k=1,Nr loop.
1960    o added some #ifdef's ALLOW_PASSIVE_TRACER
1961    o cleaned initialisations in ctrl_map_ini
1962      related to TAF
1963    
1964    checkpoint40pre6
1965    o split dynamics into thermodynamics & dynamics
1966    o corresponding split of calc_diffusivity into
1967      calc_diffusivity, calc_viscosity
1968      (kpp_calc_diff, kpp_calc_visc).
1969    o Added diffkr, kapgm to control variables
1970    o bug fix in gmredi_slope_limit for ldd97
1971    
1972    checkpoint40pre5
1973    o proper initialization of Adams-Bashforth time stepping
1974      + uses forward step for very first step of model (iter=0)
1975    o re-generated *all* output since almost all output is modified by this
1976      change (sorry but we've been putting this one off for about 2 years)
1977      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1978        *not* regenerated since they are already out of date and I don't
1979        want to create the impression that they are suddenly working.
1980    o removed KAP stuff for DEC's
1981    o modified/added many .cvsignore files in */code and */input
1982    o added new expt "solid-body.cs-32x32x1"
1983      + this uses an alternative form of ini_curvilinear_grid.F which
1984        is not necessarily any better than the current one...
1985    
1986    checkpoint40pre4
1987    o added re-initialisations of utrans,vtrans,rtrans in
1988      calc_common_factors which are crucial for TAF.
1989    o extended iMin,jMin range for calc_common_factors,
1990      calc_diffusivity
1991    o added option ALLOW_PASSIVE_TRACER
1992    o a few minor updates and fixes
1993    
1994    checkpoint40pre3
1995    o created calc_gtr1.F for gad package
1996    o split the_main_loop and re-introduced forward_step
1997    o some recomputations of nIter0 for TAMC
1998    
1999    checkpoint40pre2
2000    o Updated to latest branch of AJA, JMC
2001    o Added gradient check package
2002    o Added routines for passive tracer handling
2003    o Added carbon sequestration sensitivity experiment
2004    
2005    checkpoint39
2006     o Modifications and fixes to support TAMC
2007       (mainly missing or wrong directives)
2008     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2009       in addummy_in_stepping
2010     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2011     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2012     o Included following packages:
2013       cal: calendar
2014       exf: external forcing
2015       ecco: essential routines to control use of cal, exf
2016             (NB: this is not the full ECCO environment)
2017     o disabled some packages by default in genmake
2018    
2019    checkpoint38
2020     o see notes_c37_adj.txt
2021     o corrected wrong layer index in external_forcing_t
2022     o replaced the_main_loop/forward_step by the_main_loop
2023     o removed forceoutput from write_state
2024       (replaced criteria for initial/final state)
2025     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2026    
2027    checkpoint37
2028     o mdsio.F routine split and packaged in pkg/mdsio
2029       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2030        used unless genmake -disable=mdsio)
2031     o allow a more precise surface-geopotential gradient for the atmosphere
2032       taking into account the change in space of Alpha (=1/rho) at the surface.
2033     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2034       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2035     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2036       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2037       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2038     o Time-Average diagnostics defined as a pseudo package "timeave".
2039     o pickup files : old pickup (before c35) did not work with new code (c35
2040       and after) unless activating 2 commented lines in initialise-varia.
2041     o Non-Hydrostatic pickup file Pb fixed.
2042     o bug with Rigid-lid version (since c35) fixed.  
2043    
2044    checkpoint36
2045     o implement Crank-Nickelson barotropic time-stepping
2046     o recover Time-Average diagnostics
2047     o fix Pb in checkpoint (PR#19)
2048     o AIM become a standard package ; clean unused CPP_kees
2049    
2050    checkpoint35
2051     o subtantial rewrite of dynamics.f
2052     o allows staggered time-stepping
2053     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2054     o added bottom drag (linear + quadratic)
2055    
2056    checkpoint34
2057     o Modified exchange routines for correct reverse simulation.
2058     o Added verification output to comply with bug fix in impldiff.F
2059       as of c33 (exp2, natl_box).
2060     o Corrected store directives in dynamics.F
2061     o Corrected array boundaries in impldiff.F
2062     o Corrected array dimensions in gmredi.
2063       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2064     o Added routine GLOBAL_SUM_INT to global_sum.F
2065     o Added mdsio_gl.F for ECCO purposes.
2066    
2067    checkpoint33
2068     o Fixed bug in lower BC in impldiff.F
2069     o Fixed confusion about units of forcing arrays in FFIELDS.h
2070       namely Fu,Fv,Qnet,Qsw,EmPmR:
2071       - Removed verification/natl_box/code/external_fields_scale.F
2072         (did not differ from that in model/src)
2073       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2074         (see FFIELDS.h for description)
2075       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2076         kpp_calc.F and kpp_transport_t.F
2077       - Removed model/src/external_fields_scale.F and calls to it
2078       - verification/natl_box uses flux data with "atmospheric" sign so
2079         a special version of external_fields_load.F is used to
2080         change the data as it's read in. This way, the arrays
2081         have the right units and signs at all times tha a user could
2082         possibly use them.
2083     o Corrected genmake to delete a temporary file during configuration
2084    
2085    checkpoint32
2086     o Scaling of forcing fields moved from external_forcing.F to
2087       external_fields_scale.F, called directly after loading fields.
2088     o Surface relaxation terms added to surface tendency fields in
2089       extra subroutine.
2090     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2091       fields.
2092     o Changes in GMRedi to comply with packaging structure.
2093     o Modifications and bug fixes in KPP package.
2094     o Verification experiment for KPP added (verification/nat_box/)
2095    
2096    checkpoint31
2097     o Packages interface brought in line with defined standard
2098       -> new routines packages_...F
2099       -> changes in initialise_fixed.F, initialise_varia.F
2100       -> enables initialisation interface for ECCO package
2101     o Rescaling of external forcing fields immediately after read
2102       (removed from external_forcing.F)
2103       -> new: surface_fields_scale.F
2104       -> affects ini_foorcing.F, external_fields_load.F
2105     o Computation of surface tendencies before tendency updates.
2106       -> new: external_forcing_surf.F
2107     o Change of variable names useGMRedi, useKPP, useECCO
2108     o Further changes in dynamics.F, impldiff.F for TAMC
2109     o Tested for experiments 0, 2, 4.
2110       - not yet tested for GMRedi.
2111       - not yet tested for KPP.
2112    
2113    checkpoint30
2114     o Updates for OBCs
2115     o New experiment for test OBCs (internal_wave)
2116     o New output.txt in verification/exp4/results/
2117     o Updates for KPP: calculation of viscosity corrected, new variables
2118       kpp_dumpFreq and kpp_taveFreq
2119     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
2120       and entry for T90 in genmake
2121    
2122    checkpoint29
2123     o packaged KPP and GM/Redi
2124    
2125    checkpoint28
2126     o Corrected initialization of hFacMin for difference vertical coordinates
2127     o Modified calculation of partial cell thickness to more robust algorithm
2128     o config_summary.F: replaced write_1D_... by write_0D_...
2129       read_write.F: added subroutines write_0D_...
2130     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
2131       included some initialisations required for TAMC.
2132     o routine calc_isoslopes: modified sqrt computation to make it
2133       differentiable for zero argument.
2134     o routines dynamics, impldiff:
2135       included store directives and tape key computations required for TAMC.
2136     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
2137    
2138    checkpoint27
2139     o fixed calc_isoslopes() to so that cancellation of terms in tensor
2140       formulation works properly with variable resolution.
2141     o restructured the calling tree between the_model_main() and dynamics()
2142     o split initialise() into initialise_fixed() and initialise_varia()
2143     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
2144       in new routine ini_psurf()
2145    
2146    checkpoint26
2147     o moved some #ifdef in optional routines to encompass everything
2148       except the argument declarations. This was using up some memory.
2149     o fixed macros like _ADT to work with both versions of Linux cpp
2150     o cleaned up some unused and uninitialized variables
2151       (helps when debugging with strict compile options)
2152     o split up CPP_EEOPTIONS.h into options and macros
2153       (macros are now in eesupp/inc/CPP_EEMACROS.h)
2154     o patch for 2 processor JAM mode
2155    
2156    checkpoint25
2157     o updates for OBCs and NH
2158     o dramatically reduced memory usage
2159     o added "JAM" routines for use on Artic network
2160     o parameterization of convection by implicit vertical diffusion
2161     o added a diagnostic of convective index
2162     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
2163       (this is was partly for OBCs and NH but also in anticipation of
2164        an explicit free-surface option)
2165     o initial state input files for U and V
2166    
2167    checkpoint24
2168     o Removed some spurious "REAL"s
2169     o Updated KPP to latest version from JPL
2170     o Added a COS(latitude) in horizontal viscosity
2171    
2172    checkpoint23
2173     o Added del^4 diffusion for salt and temperature
2174     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
2175    
2176    checkpoint22
2177     o Made many small changes: implicit none, format(i5), etc...
2178     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
2179    
2180    checkpoint21
2181     o Introduced new I/O package that supports direct-access records (mdsio.F)
2182     o Split-up mid-level I/O routines
2183     o Updated input data for experiments 0,1,2,4 and 5
2184     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
2185    
2186    checkpoint20
2187     o Tidied up open-boundaries some more
2188     o Added non-hydrostatic code
2189     o Fixed some input data
2190     o Modified MPI start-up to work in "coupled" context.
2191    
2192    checkpoint19
2193     o Tidied up directory structure for verification experiments.
2194     o Added new code for open boundaries.
2195     o Corrected advective terms near boundaries.
2196     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
2197     o Implemented free-slip/no-slip BCs and del^4 dissipation.
2198     o Split default parameters out of ini_parms.F into set_defaults.F.
2199    
2200    checkpoint18
2201     o Further changes for optional code generation with
2202       CPP - ugh!
2203    
2204    checkpoint17
2205     o Beginning to incorporating modularity
2206       for supporting atmos. and ocean configs.
2207     o Small changes for TAMC complinace
2208     o New ultra simple test case. Barotropic box
2209       configuration "exp0".
2210    
2211    checkpoint16
2212     o Minor changes to exchange routines to support
2213       accumulation in reverse mode. Adjoint of an
2214       assignment is an addition.
2215     o Changes to support compilation by TAMC (LR(1)
2216       syntax) and by g77 under Linux ( 72 character
2217       limit ).
2218    
2219    checkpoint15
2220     Rewrote exchange routines to allow
2221     o General tile <-> tile connectivity.
2222     o TAMC reverse mode flag ( is this really needed? )
2223     o Variable width overlap and exchange region widths.
2224     o Hooks for sharing data via DMA, Arctic, Memory Channel,
2225       shmput/shmget, VIA, SYSV shmem and every other cool
2226       communication method.
2227    
2228    checkpoint14
2229     Consistent isomorphism chages made. These allow dynamical core
2230     to support both pressure and meters as a vertical coordinate.
2231    
2232    checkpoint13
2233     Release which corrects global_max problem and a couple
2234     of KGM time-averaging diagnostic errors. Also contains
2235     a double-gyre experiment setup as well as the baseline
2236     4 degree global template. The double gyre template is
2237     organised to allow it to be applied automatically to
2238     the baseline configuration.
2239    
2240    branch-point-rdot
2241     A few tidy-ups have been made bt the real point of this
2242     check-point (excuse the pun) is to allow a branch to be
2243     made for the purposes of adding the rDot alterations.
2244     I don't want to commit the rDot to the main-trunk until
2245     we've actually tested it...
2246    
2247  checkpoint12  checkpoint12
2248   Tidy up and added generic genmake script (formerly   Tidy up and added generic genmake script (formerly

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