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revision 1.7 by adcroft, Mon Jun 22 16:24:50 1998 UTC revision 1.450 by edhill, Thu Feb 10 16:45:53 2005 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o modify verification/ideal_2D_oce so that it tests the creation of mnc
7      output from the diagnostics package
8    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
9    o make genmake2 more portable by using ".$FS" instead of ".f" for more
10      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
11    o add coordinate variables to the MNC output from the diagnostics package
12    o change MNC-flags default value: true when useMNC=TRUE
13    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
14      the ability (off by default) to read the grid information using MNC
15    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
16    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
17    o do snap-shot diagnostics at the middle of the time-interval (instead of
18      at the end).
19    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
20      new test for AIM with thSIce + slab-ocean
21    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
22    o move state variable diagnostics to the beginning of the time step ;
23      (note: still needs some work specially for snap-shot diagnostics)
24      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
25    
26    checkpoint57c_post
27    o Change testing option (-ieee) to get closer agreement between g77 & ifort
28    o generate new output.txt files on faulks with g77 & the new -ieee option
29    checkpoint57c_pre
30    
31    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
32      update output.txt of exp. global_ocean.90x40x15
33    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
34      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
35    o add saltFlux(+File) forcing capability with periodicExternalForcing
36    o allow to use pkg diagnostics for GM-Redi & ThSIce output
37    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
38    o improvements for the MNC output from DIAGNOSTICS:
39      - correct handling of the unlimitied dimension
40      - all dims now have associated coordinate variables
41      - variables located at U, V, and Corner ("Z") points are now written
42        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
43        *all* data points are output
44    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
45    o added pkg/seaice/seaice_monitor.F
46    o mdsio_readfield.F can now read files visible only to master MPI process.
47    o pkg/seaice: some test code for ice-modified ocean stress
48    o exf_getffields interpolation defaults to bilinear for all scalar forcing
49      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
50      spurious negative numbers for precipitation and humidity.  Will cause
51      some small numerical differences for integrations using pkg/exf/exf_interp.F.
52    o pkg/ctrl/
53      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
54        May be enabled via doPackDiag
55      *  introduce z-scaling of
56         + gradient (doZscalePack) and
57         + control (doZscaleUnpack)
58    o pkg/mdsio/
59      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
60      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
61    
62    checkpoint57b_post
63    o simplify options in diagnostics_fill arguments (remove weird combinations)
64    o fix MNC coordinate variables so that they now contain per-face index
65      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
66      general, EXCH2 grids are only aligned to a "local" coordinate system
67    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
68    o Implement instantaneous output within pkg diagnostics:
69      setting a negative frequency in data.diagnostics produces
70     "snap-shot" output (as opposed to time-average if freq > 0)
71    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
72      NOTE: change ptracer diagnostics name: use 2 characters to work with
73            more than 9 tracers. Add also diagnostics of advect & diffus flux.
74    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
75      becomes the coordinate variable for the 'T' dimension
76    o add CF-style coordinate variables to MNC
77      - just a first cut:  numbers are meaningless on the cubesphere and
78        missing along the T axis but otherwise it works!
79    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
80    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
81    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
82      this is based directly on what the model compute, so that the content of
83      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
84    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
85    o clean up build options files for SunOS, in particular
86      - remove -traditional from xmakedepend
87      - change -xarch=v9 to -xarch=native for f77
88      - restore use of make (not gmake)
89      - add CC=gcc if using g77
90    o changes per discussion of AM, JMC, & EH3 today:
91      - move redundant "grid" variables out of "state" -- in preparation of
92        creating proper CF-style coordinate variables and in recognition
93        that any/all grid variables can be easily copied (eg. w/NCO) from
94        the grid files into any of the other NetCDF files
95      - *always* output grid variables with MDSIO (this will eventually be
96        changed)
97      - output MNC grid file if useMNC is true
98    o every instance of _END_MASTER() has been found and replaced with
99      _END_MASTER( myThid ) in order to satisfy certain picky Sun
100      preprocessors
101    o re-arrange diagnostics pkg initialisation:
102     - allow each package to extend the available diagnostics list
103     - add some checking and fix small problems (multi-threaded, ...)
104     - new S/R diagnostics_fill (replace fill_diagnostics):
105       look through the short list of active diag. (instead of the long list)
106       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
107    
108    checkpoint57a_post
109    o this set of changes restores TAMC compatibility
110      tested for global_ocean.90x40x15 adjoint on trough
111      (what a pain)
112    
113    checkpoint57a_pre
114    o some modifs in tools/build_options for sunos
115    o call ctrl_pack for ctrl at end for optimcycle=0
116    
117    checkpoint57
118    o add horizontal bi-harmonic viscosity for vertical velocity
119      - new parameter viscA4W (defaults to viscA4)
120      - affects only non-hydrostatic code
121      - to be done: no-slip lateral boundary conditions
122    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
123    o implement Implicit Vertical advection for pTracers
124    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
125      (implemented also for implicit vertical diffusion & advection)
126    o OBCS: extend application of tracer open boundary conditions
127      to a strip beyond the boundary of width Olx/Oly
128    o add call monitor to TAF set of required calls (flow directives)
129      and include in natl_box_adjoint
130    o untangle a few ifdefs related to cost, ctrl, autodiff
131      untangel a few ALLOW_ECCO_OPTIMIZATION
132    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
133      (theta2, salt2 in ecco_cost_weights)
134    
135    checkpoint56c_post
136    o OBCS as control variables
137      - update ctrl_ad_diff.list, obcs_ad_diff.list
138      - remove balance of obcs controls from default
139      - fix index bug nobcs in ctrl_init
140      - fix dummy fields filen in ctrl_pack
141      - add dummy weights for obcs
142    o lsopt: comment out fort.94 output
143    o optim:
144      - remove unnecessary header files
145      - adjusted namelists
146      - add xerbla.F to Makefile
147    o exf:
148      - multiple modifications of exf_check_range
149      - unit change in exf_init_runoff from [m/year] to [m/s]
150    o mdsio:
151      - i/o-vector change debugLevel from debLevA to debLevB
152    
153    checkpoint56b_post
154    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
155      is called from DO_THE_MODEL_IO
156      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
157      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
158      - clean up PTRACERS_WRITE_TIMEAVE a little
159    o add another verification experiment that tests both the cfc-pkg and
160      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
161      reactive tendencies treated inline with regular timestepping
162    o testreport previously did a lousy job of comparing small numbers, so
163      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
164      implemented in the little c-progam tmp_cmpnum.c which is embedded in
165      testreport.
166    o ptracers_monitor: bug fix for MPI
167    
168    checkpoint56a_post
169    o GCHEM: finish reorganizating the package
170      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
171        (introduces another 3D-array for each passive tracer, but only if
172        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
173        gchemTendency is not needed because the timestep is done separately)
174      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
175      - GCHEM is now---more or less cleanly---separate from PTRACERS
176      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
177        so clear to me how that should be done in a general way.
178    o CFC: improve formatting of output in CFC_ATMOS
179    o PTRACERS:
180      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
181        that ALL experiments with ptracers enable can be checked. This makes
182        GCHEM_MONITOR obsolete.
183      - include a runtime parameter PTRACERS_monitorFreq that defaults to
184        monitorFreq
185      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
186    o add PTRACERS (PTR0[1-5]) to testreport output
187    o exf_check_range:
188      * default changed to .TRUE.
189      * will check values for niter0 if debLevA, every timestep if debLevB
190      * STOP in exf_check_range if 'out of range'
191      * range chosen generous to allow for potential extema
192      TBD: a version with stricter range
193           permitted range would be runtime parameters
194    o GMredi:
195      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
196      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
197      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
198    o GCHEM:
199      - move call to GCHEM_FORCING_SEP, so that it is now called before
200        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
201      - introduced a useGCHEM runtime flag and applied it everywhere.
202      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
203        this flag is now only visible within GCHEM-pkg routines.
204      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
205        be replaced by a 3D array that is computed before thermodynamics; for
206        this, the tracer ID iTracer had to be included into the parameter list
207        of ptracers_forcing
208      - set up forward_step to call gchem_forcing, that will replace
209        gchem_forcing_int in ptracers_forcing
210      - cleaning up
211    o small cleaning of exch2: remove files that are also in eesupp/src
212    
213    checkpoint56
214    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
215    o mnc: cleanup "full" files--fixes out-of-memory problem
216    o ECCO-GODAE
217      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
218      * fully merged and updated from SIO code
219        windstress sign change affects
220        - exf_inscal_[u/v]stress
221        - sign of xx_tau[u/v] adjustments
222        - signs in cost_scat
223      * ctrl_get_gen: avoid update of tau[u/v] for first few days
224      * natl_box_adjoint updated and compressed
225      * 2-level checkpoint switch added
226        (tested in EXP. 1 of natl_box_adjoint)
227      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
228    o SVD
229      * first complete, non-hacked version for SVD calculations
230      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
231        performed via direct access files admtlm_vector.it????
232        (via ctrl_[un]pack)
233      * optimcycle is used for ARPACK iteration counter
234        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
235      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
236        and add linear transforms where necessary
237      * controls are initial/final SST, SSS (can be extended; need to check
238        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
239    o mdsio: filename info to both stderr, stdout
240    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
241      from sign change
242    
243    checkpoint55j_post
244    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
245      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
246    o add consistent build directories and .cvsignore files to verification
247    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
248    o make all subroutines 30 or less characters in length for certain older
249      compilers to work (a thorough search only turns up two routines in
250      pkg/ptracers)
251    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
252      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
253    
254    checkpoint55i_post
255    o change arrays for total vertical diffusivity (2.D if explicit,
256      3.D if implicit) ; each ptracer uses its own background value.
257    o added mnc/NetCDF output capability to ocn_compon_interf
258      - added bits to verification/cpl_aim+ocn so that it can run on
259        ITRDA and other clusters without the mpirun "-wd" option
260    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
261      configuration
262    o give MNC the ability to create additional files rather than
263      exceeding a specified file size limit "MNC_MAX_FILESIZE"
264      - the default is just less than 2GB which is a practical limit
265        on many systems
266    o Compute the non-local term using either KPP vertical diffusivity (=default)
267       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
268    
269    checkpoint55h_post
270    o add verification test "vermix"
271    o remove all the *_ioinc flags and replace with the single global
272      outputTypesInclusive flag
273    o allow to set a vertical profile of vertical diffusivity for T & S
274    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
275    o useMNC moved from data.mnc to data.pkg
276    
277    checkpoint55g_post
278    o Renaming carbon AD experiments to comply with testreport conventions
279    o Updating adjoint of Held-Suarez hs94.1x64x5
280    o Fixing directives for non-ECCO forward_step, after ECCO directives
281      have been fixed to avoid recomp. of do_oceanic_phys
282      Works well for global_ocean.90x40x15,
283      but recomp. issue remains for carbon
284    o Updating adjoint output for natl_box_adjoint after
285      pkg/ecco has been modified (see taga c55d_post)
286    
287    checkpoint55f_post
288    o rename to timeave_init_fixed
289    
290    checkpoint55e_post
291    o some delicate re-shuffle of store directives to avoid one
292      extra call of do_oceanic_physics
293      affects ecco_the_main_loop.F, do_oceanic_physics.F
294      checkpoint_lev1_directives.h
295    o NB: this may break global_ocean adjoint temporarily,
296      but it is clear how to fix it. Will do later, need this now.
297    
298    checkpoint55d_post
299    o ECCO specific cost function terms (up-to-date with 1x1 runs)
300    o ecco_cost_weights is modified to 1x1 runs
301    o modifs to allow observations to be read in as
302      single file or yearly files
303    o enable to read exf forcing fields as either
304      single file or yearly files (flag useExfYearlyFields)
305    checkpoint55d_pre
306    
307    o switch between 2-level and 3-level checkpointing
308    o add ability of MNC to write local and "partial" (eg. 2D slices where
309      the full 3D field is never actually stored) arrays to NetCDF files
310      with the correct (that is, the complete multi-dimensional) set of
311      array indicies
312      - used in mom_vecinv() to write the diagFreq output
313      - tested (demonstrated) in verification/aim.5l_cs
314    o further mnc-ification
315      - add verification/lab_sea to the list with mnc setups
316      - fix undefined mnc v-names in cd_code
317      - add kpp to mnc output (both snapshot and timeave)
318    o non-hydrostatic code
319      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
320        in calc_gw.F
321      - defaults to viscAh
322      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
323        friction or Leith) in non-hydrostatic mode, as long as there is
324        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
325    o pkg/cost
326      extend simple cost functions to treat time mean quantities
327      (T,U,V) via cost_accumulate_state from cost_tile
328    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
329        be 2 times larger than the minimum size the advection scheme requires.
330        now get a perfect conservation of salt in advect_cs test-exp (updated)
331    o GGL90 (Gaspar's TKE mixed layer)
332      - add horizontal diffusion of TKE, requires exchanges in
333        do_fields_blocking_exchanges, horizontal diffusivity is zero by
334        default. In OPA there is no horizontal diffusion of TKE but the
335        mixing coefficients are computed from a horizontal average of TKE of
336        6 points or so. I think that diffusion has a little more physical
337        justification.
338      - clean up ggl90_calc in the hope of reducing memory usage (this hope
339        was in vain)
340      - mask tke-variable in ggl90_init
341    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
342    o fix biharmonic diffusion on CS-grid.
343    o more obcs stuff
344      - added obcs_external_fields_load as an alternative to the EXF-pkg option
345        for reading boundary values. This routine is called from
346        obcs_prescribe_read
347      - updated obcs_check
348      - changed sponge layer relaxation parameter units for days to seconds
349      - turned off sponge layer by default
350      - changed argument list of OBCS_CALC to myTime+deltaTclock
351      - fixed about 35 bugs in obcs_external_fields_load
352    
353    checkpoint55c_post
354    o obcs stuff
355      - new runtime flags useOBCSprescribe, useOBCSbalance
356      - re-arranged obcs_calc
357      - moved exf_getobcs to obcs_prescibe_read
358        obcs_prescibe_read is called after ORLANSKI stuff
359        and independent of it (executable can contain all).
360      - updated obcs_check
361      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
362        These may be necessary only if tangential velocities are
363        prescribed at OB, not sure, needs testing.
364    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
365      which simplifies the calls and passes the ifc check-bounds test
366    
367    checkpoint55b_post
368    o add a 2D scalar, Z location, exchange_2 routine.
369    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
370      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
371      affects advect_cs results (for the wrong reason): update output.txt
372    o use a more standard discretization for biharmonic viscosity ;
373     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
374      affects results of dome set-up: update output.txt
375    o fix gad_advection.F (CubedSphere part), back to version 1.23
376    o fix bug in mom_vi_del2uv.F (CubedSphere part).
377    
378    checkpoint55a_post
379    o merged code to
380      * prescribe/read time-dependent open boundaries
381        (works in conjunction with exf, cal)
382      * sponge layer code for open boundaries
383      * each boundary N/S/E/W now has its own CPP option
384        (healthy for the adjoint)
385    
386    checkpoint55
387    o up-to-date adjoint of previous breaks
388      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
389      - global_ocean_ebm: adjoint still needs fix (TLM ok)
390      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
391      - carbon: * remove tr1-related adjoint verification
392                * add ptracer as control variable
393    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
394      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
395    
396    checkpoint54f_post
397    o in verification/carbin/ remove experiment related to
398      ALLOW_PASSIVE_TRACER (array tr1 etc)
399      code_ad/ input_ad/ results_ad
400    
401    o add two new packages
402      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
403        + subject to optimization (memory)
404      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
405        + subject to reordering (many GOTOs in the original code)
406        + so far opps is called for every (i,j) point, and then operates in
407          the vertical; one may want to reorder the scheme in order operate in
408          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
409          fields)
410    o overhaul of IO so that we now have flags for MDSIO and/or MNC
411      - all verification tests compile and run with linux_ia32_g77
412      - defaults are compatible with current input files--nothing
413        should change if you were not previously using MNC
414      - MNC output has been added in numerous places (eg. timeave)
415        but there are still a few writes not yet do-able with MNC
416        (this is in progress)
417      - flags now allow for either/or/both use of MDSIO and MNC and
418        documentation will soon follow
419      - numerous small formatting cleanups for ProTeX
420    o add version info (via BUILD_INFO.h) to MNC and stdout
421    
422    checkpoint54e_post
423    o add two new packages
424      - pp81 (Packanowski and Philander, 1981), Richardson number and
425        stratification dependent mixing
426      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
427      - these scheme operate in a similar manner as KPP (without ghat, of
428        course), however there is only one diffusivity that is used for both
429        temperature and salinity (and passive tracers)ç
430    o add offline package
431    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
432      provided by Stephanie Dutkiewicz
433    o genmake2: add ability to search for C compilers and cleanup test output
434      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
435    
436    checkpoint54d_post
437    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
438    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
439      leading to additional shift by 5 days each year of integration
440       (i.e. leading to considerable offset over the years)
441    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
442    o start with no AB and no initial filtering (staggerTimeStep):
443      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
444    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
445      (external loading & cpl import/export stay in forward_step.F)
446    o update coupling interface to work with new staggerTimeStep
447    o change MDSIO ptracers_pickup.
448    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
449    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
450    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
451    
452    checkpoint54c_post
453    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
454      this affects (truncation error) output.txt of test-exp:
455       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
456    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
457    o change Qnet to always be the net heat flux, (+upward).
458      affects (truncation error) output of natl_box exp.: updated
459    o define the max number of passive tracers in PTRACERS_SIZE.h
460    o start to test mnc routinely in exp0
461    o add sea-ice loading (sIceLoad) as a new forcing field.
462    
463    checkpoint54b_post
464    o add testreport "-j JOBS" option for parallel builds (tested and pretty
465       impressive on Altix and Opteron systems)
466    o diagnostics can now write NetCDF files through the mnc package
467    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
468    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
469    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
470      affects (truncation error) output of lab_sea & natl_box exp.: updated
471    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
472    
473    checkpoint54a_post
474    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
475    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
476    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
477    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
478      + internal_wave (shift in writing cg2d_ini_res)
479    checkpoint54a_pre
480    
481    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
482      - modified verification/lab_sea and natl_box_adjoint accordingly
483    
484    checkpoint54
485    checkpoint53g_post
486    o prepare splitting of thermodynamics: store convect.counter in common block
487    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
488      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
489    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
490    o new parameter "nShapS": allow to treat differently S from T (nShapT)
491    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
492    o restore adjointability
493    
494    checkpoint53f_post
495    o modifications that affect AIM experiment results (update output.txt):
496      - no advection of S at top interface Nr (pkg/generic_advdiff)
497      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
498    o AIM pkg:
499      - include stability function into surf.Flux derivative relative to Tsurf
500      - calculate clear-sky radiation & surface temp. change (for diagnostics)
501    
502    checkpoint53e_post
503    o merged cylindrical coord configuration
504    o added rotating_tank experiment
505    checkpoint53e_pre
506    
507    checkpoint53d_post
508    o faulks upgraded: re-generate output.txt that have changed:
509       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
510    o Added Bryan and Lewis, 1979, vertical diffusivity profile
511    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
512    o added Sadourny discretization of Coriolis
513      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
514      - re-enabled use of omega3 (useAbsVorticity)
515    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
516      vector-invariant equations
517      - note: does *NOT* yet use same variable visc. for no-slip BC's.
518    o recoded the lateral boundary conditions for non-hydrostatic w, this time
519      hopefully without new bugs
520      - still to do: biharmonic friction for non-hydrostatic w
521    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
522    o regenerated output for global_ocean_ebm (using -ieee)
523    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
524      of mom_common/
525      - simple re-arrangement of instructions within computing loop
526    checkpoint53d_pre
527    
528    checkpoint53c_post
529    o new version of coupler for AIM+thSIce and Ocean models
530     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
531     - land: change Evaporation of snow
532     - aim with thSIce: fix bug in snow-precip.
533    o changes to calc_gw.F
534     - bug fix for w^2 term near the bottom boundary
535     - (hopefully) improve the lateral slip boundary condtions for use with
536        partial/looped cells
537      - because the bug fix changes two verification experiments anyway (exp5
538        and plume on slope), change the lateral boundary condition from half slip
539        to the value of no_slip_sides
540    o ebm package wasnt quite up to the parallel task. Fixed that.
541    o Adjoint of EBM package + verification
542      * TLM OK
543      * ADM not sufficient accuracy yet (needs further testing)
544    
545    checkpoint53b_post
546    o Commiting new energy balance model to repository
547      * package is pkg/ebm
548      * verif. is verification/global_ocean_ebm
549      * references are in ebm_driver.F
550    C      * X. Wang, P. Stone and J. Marotzke, 1999:
551    C        Global thermohaline circulation. Part I:
552    C        Sensitivity to atmospheric moisture transport.
553    C        J. Climate 12(1), 71-82
554    C      * X. Wang, P. Stone and J. Marotzke, 1999:
555    C        Global thermohaline circulation. Part II:
556    C        Sensitivity with interactive transport.
557    C        J. Climate 12(1), 83-91
558    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
559    C        Destabilization of the thermohaline circulation
560    C        by atmospheric eddy transports.
561    C        J. Climate 7(12), 1870-1882
562    o Will need long integration testing.
563    checkpoint53b_pre
564    
565    o created pkg/mom_common in preparation for variable viscosity code
566    o renamed and split ini_mnc_io
567    o pkg/land: only liquid water can diffuse or run-off
568    o AIM using land: soil wetness availability account for snow
569    o added printMapIncludesZeros to EEPARMS namelist
570    
571    checkpoint53a_post
572    o restore TAMC compatiility for exf_constants.h
573      (no usage of _d in .h)
574    o Additional storing in KPP in an attempt to fix
575      TAMC problem with adjoint of KPP code.
576      (no success...)
577      Identical code works fine with TAF.
578    o Fixed verification/natl_box_adjoint experiments.
579      Initial conditions for Experiments 4 and 5 are now
580      set to "SEAICE_initialHEFF=0", which is more reasonable,
581      and hence gives results closer to that of Experiment 2.
582      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
583    
584    checkpoint53
585    o stable checkpoint with up to date adjoint
586      TLM tests only run for 1st grdchk at the moment. Its unclear if
587      this is a code problem or a problem with resetting code for g_
588      variables that is being autogenerated wrong.
589      Otherwise:
590       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
591       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
592         are both still in chaos following their security messes.
593    
594    checkpoint52n_post
595    o various build (mostly genmake2) changes including:
596      - ability to build/run more easily within Cygwin and MacOS X
597      - more complicated Makefiles with a stronger dependence on Gnu Make
598    o pkg/seaice modifications
599      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
600        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
601        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
602      - changed proxy for geostrophic velocity and updated
603        verification/lab_sea/results/* accordingly
604      - removed ADI dynamic solver from pkg/seaice
605      - replaced all occurrences of 1/CSTICE or 1/CSUICE
606        they caused a segmentation fault under certain circumstances
607      - removed unused field WATR
608    o bug fix in exf-package:
609      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
610         now reflect that.
611    o small fixes in the cal-package:
612      - set reference date to first of January for the 'model'-calendar
613      - failing of cal_CheckDate in cal_FullDate now actually results in a
614        warning
615    o small modifications in exf-package to increase flexibility:
616      - change climtempfreeze from a constant to a runtime parameter that
617        is specified in data.exf_clim (default = -1.9)
618      - introduce runtime parameter windstressmax (default = 2.0) that is
619        specified in data.exf
620    o fix in pkg/thsice:
621      - update Evap (Tsf changes) to be consistent with Latent heat flux
622      - maintain snow precipitation unchanged (even if Tsf >=0).
623     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
624    
625    checkpoint52m_post
626    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
627      this does not change any of the results, because myIter=0 in swfrac always
628      lead to jwtype=2 (the default anyway), but the call makes little sense
629      as a default
630    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
631    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
632      atmospheric model (AIM) to use it ; add a "slab ocean" component.
633    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
634    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
635    o extending useSingleCpuIO option to work with new exch2 I/O format
636      - old-style, missing-tile I/O is still accessible by defining CPP
637        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
638    o monitor package can write to NetCDF files and/or STDOUT
639    o fix re-definition bug in MNC_GRID_INIT_ALL()
640    o doc/api_reference added
641      - a framework for building an API Reference Manual using all
642        the "protex" comments embedded in the code
643      - see pkg/generic_advdiff, pkg/mnc for examples
644    o MNC:
645      - make myThid the last argument for all subroutines
646      - new default for the grid files: NO halos
647      - add useMNC and other run-time flags
648      - separate per-file-group handling of the unlimited dimension
649      - early initialization of MNC w/ flags read at the eeboot stage
650        and lookup tables set in initialize_fixed
651      - write all MNC output to a freshly-created directory
652    o thermodynamics sea-ice (thsice) is now tested with testreport.
653    o test exp. advect_cs: use the standard cs32 grid ; update output.
654    o Added functionality to grdchk:
655      pick global i,j,k position (or nearest wet) where to perform check.
656    
657    checkpoint52l_post
658    o new land formulation:
659      a) use ground enthalpy as prognostic variable to ensure exact
660         energy conservation.
661      b) account for water temperature and for latent heat of freezing
662         in all processes (rain, run-off, ground storage)
663      c) compute surface and ground temperature implicitly.
664    o aim_v23 modification for new land model:
665      a) Treat separately land / ocean / sea-ice surface fluxes
666         to allow implicit computation of land & sea-ice surface temp.
667      b) add snow precipitation.
668    checkpoint52l_pre
669    
670    o fix problem (when 1 tile is empty) in min/max monitor.
671    o fix bug in timeAve (u,vZetatave in common block)
672    o no restoring terms under ice for pkg/seaice
673    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
674    o bug fix for pkg/seaice pickups
675    o change MNC call locations and add coordinate attributes
676    o mask vorticity at the corner ; affects global_ocean.cs output
677    o fix ini_curvilinear_grid ; test CS experiments with mpi
678    o aim.5l_cs: modify sea-ice fraction input file ; update output
679    o exf: Adding simple range check routine for exf fields after read
680    
681    checkpoint52k_post
682    o removed top-level directory "diags"
683      - we migrated these functions to pkg/timeave a long time ago
684    o fixed bug introduced in pkg/monitor
685    o accuracy ctrlprec = 32 insuffient for gradient checks using
686      averaged fields (I/O via cost_averages)
687      -> use ctrl.h in active_file*.F to control I/O precision.
688    o paramter list of CALL ADTHE_MAIN_LOOP
689    o added initial do_the_model_io to ecco
690    o set all ...Freq to zero after cost_final
691      taveFreq, dumpFreq, pChkptFreq
692    o MAIN and ECCO differentiability restored
693    
694    checkpoint52j_post
695    o fix nchklev in tamc.h for global_ocean...
696    o Bringing flow and store directives up-to-date
697    o Really weird thing!
698      call do_the_model_io from the_main_loop with parameters
699      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
700      TAF places a faulty re-call of initialise_varia
701      after cost_final call which should not be there!
702    checkpoint52j_pre
703    
704    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
705      error messages
706    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
707    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
708      debug output
709    o modfied mdsio_writefield.F to handle non-global files under exch2
710    o update AIM Cubed-Sphere exp (aim.5l_cs):
711      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
712    o update AIM Equatorial Channel exp:
713      use standard aim_v23 pkg and change the SST fields to be more realistic.
714    o globalFile now works with exch2
715    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
716      mon_vort3.F to make exch2 friendly with >1 tile per cube face
717    o limit timeave output for hi-res integrations
718    
719    checkpoint52i_post
720    o removed CPP_EEOPTIONS.h from verification/*/code
721    o updated the tiling for global_ocean_pressure
722    checkpoint52i_pre
723    
724    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
725      the old pkg/aim).
726    
727    checkpoint52h_pre
728    o shortened offending lines in exch2_send_rx?.template
729    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
730    o genmake2: add build & execute test for NetCDF code
731    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
732      old grid files, moved CPP_EEMACROS.h to pkg/exch2
733    o added useSingleCPUIO flag to monitor.F and mon_out.F
734    o added temporary hack for sea-ice dynamics on the cube:
735      metric terms are ignored and it is assumed that
736      there is no sea-ice on cube faces 1, 2, 4, and 5.
737    
738    checkpoint52f_post
739    o added exch2 cube routines to pkg/exch2
740    o modified hs94.cs-32x32x5 to use it
741    o added new grid files to hs94.cs-32x32x5
742    checkpoint52f_pre
743    
744    checkpoint52e_post
745    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
746      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
747    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
748      to work with implicit vertical advection and AB ;
749    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
750    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
751     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
752    checkpoint52e_pre
753    
754    o fix bug in impldiff when Nr=1 or Nr=2.
755    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
756    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
757    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
758      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
759    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
760    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
761    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
762    
763    checkpoint52d_post
764    o re-tiled many expts to allow comparison in multi-processor mode
765      - updated output accordingly
766      - changed hs94.128x64x5 to use intial T from file rather than use the
767        random number generator
768    o add infrastructure in model routines for fizhi and gridalt packages
769    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
770    o changes to permit hi-res, cubed-sphere, configuration
771      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
772      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
773      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
774        of surface winds for the cube
775      (A verification experiment, based on global_ocean.cs32x15, but with
776       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
777       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
778       complete with example surface forcing files and matlab scripts to look
779       at the output and compare it with that of global_ocean.cs32x15.)
780    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
781       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
782       to conform to the common rule.
783    o check-in the first version of the coupler + interfaces for multi-components
784       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
785       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
786       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
787       - ocean and atmos. share the same horizontal grid (no interpolation).
788       - exchanges between component and coupler is done in forward_step
789    o new verification experiment, cpl_aim+ocn:
790       coupled ocean - AIM atmosphere on cs32 grid.
791    
792    checkpoint52d_pre
793    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
794    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
795    
796    checkpoint52c_post
797    o Fixing OPTIONS files for use of exf:
798      - ALLOW_ECCO not needed
799      - ECCO_CPPOPTIONS.h should not be included from
800        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
801        as has been the case in the past
802      - All cal/exf related options are currently set in
803        single header file. Should remain so until we
804        agree on a consistent new policy.
805    o Removed all CPP options for cal package.
806      cal has no more CPP options.
807    o modified STOREs in GAD_ADVECTION
808    o corrected key comp. for passkey
809    
810    checkpoint52b_post
811    o new version: "thsice" of thermodynamic sea-ice pkg:
812     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
813     - modify fluxes but do not change theta directly;
814     - light cleaning of bulk_force pkg (still needed with thsice).
815     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
816       + output_thsice.txt to test thsice & bulk_force pkgs.
817    o put back grid & coriolis monitor output.
818    checkpoint52b_pre
819    
820    o call "do_the_model_io" at the beginning (=> dump initial state)
821    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
822    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
823      (need info on NUMBER_OF_PTRACERS)
824    o missing PTRACERS headers in some routines
825    o default tamc.h in pkg/autodiff supposed to crash
826      to ensure proper customization
827    
828    checkpoint52a_post
829    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
830      - moved surfaceTendencyTice from pkg/seaice to main code
831      - subroutine FREEZE_SURFACE now limits only surface temperature
832        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
833        => new output.txt for global_ocean.cs32x15 & global_with_exf
834      - keep the old version of FREEZE for backward compatibility;
835        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
836      - corresponding modifs for TAF directives
837    o added surface flux output variables to TIMEAVE_STATVARS
838    o time-averaged output for pkg/ptracers
839    o fix problem with ECCO-related divided adjoint
840      snapshot file was missing some ad-variables,
841      but no warning issued by TAF
842    
843    checkpoint52a_pre
844    o some bug fixes for #undef REAL4_IS_SLOW
845    
846    checkpoint52 = ecco_c52_e35
847    o after testing adjoints of checkpoint51u_post
848    
849    checkpoint51u_post
850    o this is the post-merge tag of the ecco-branch
851      (needs another clean checkout and re-testing)
852    o various natl_box_adjoint configs and results
853      but no input fields
854    o obcs adjoint not yet merged!
855    o adding ECCO global 1x1 and 2x2 degree configs
856    o updated/extended some store directives for seaice
857    o pkg/ecco now containes ecco-specific part of cost function
858    o top level routines the_main_loop, forward_step
859      supersede those in model/src/
860      previous input data.cost now in data.ecco
861      (new namelist ecco_cost_nml)
862    o in ctrl/ cleaned some cross-dependencies and updated CPP options
863    
864    checkpoint51t_post
865    o this is the pre-merge tag of the ecco-branch
866    
867    checkpoint51s_post
868    o cleanup: removed various obsolete #define-s
869    o pkg/grdchk
870      - renamed 'ph-grd 3' to 'grad-res'
871      - merged from ecco-branch
872        (remaining bug fixes for obcs gradient checks)
873      - additional high-precision output for testreport
874        (grep for 'precision_grdchk_result')
875    
876    checkpoint51r_post
877    o cleaned up or removed CPP_OPTIONS.h files
878    o updated results for some of the tests to reflect the new
879      optfiles (-ieee: -O0 instead of -O3)
880    
881    checkpoint51q_post
882    o cd_code:
883      - moved cd_scheme.F -> cd_code_scheme.F
884      - separate read_checkpoint from cd_code_ini_vars.F
885      - separated cd_code part from write_checkpoint
886      - updated AD_SOURCE, generated .flow
887      - added CD_CODE_VARS.h to the_main_loop
888      - Moving cd_code specific store dir.s to pkg/cd_code
889    o ctrl package totally restructured
890      - pack/unpack now optional and decoupled from
891        xx_/adxx_ I/O
892      - ctrl_pack/unpack cleaned
893        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
894      - confined inclusion of AD_CONFIG.h to where necessary.
895    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
896    
897    checkpoint51p_post
898    o create initial cd_code package
899      - WARNING: the initialization of fields within packages
900        is broken because INI_FIELDS (where READ_CHECKPOINT is
901        called) is called *before* PACKAGES_INIT_VARIABLES.
902        This seems to be backwards since
903        1) its important to initially zero the entire field including
904           the "halo" region
905        2) zeroing needs to be done *before* reading pickup info
906           and the pickup call might or might not happen in any
907           particular run
908      - this needs an overhaul for R2
909    o cleanup verification/*/code/GMREDI_OPTIONS.h
910    o cleanup testreport
911    
912    checkpoint51o_post
913    o bringing AD-related verif's up to date with genmake2
914      - carbon/
915      - global_ocean.90x40x15/
916      - hs.94.1x64x5/
917      - (front_relax/ )
918    o (more) consistent directory structure for AD-related verif.'s
919    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
920    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
921    o bug fix in find_alpha.F for MDJWF:
922      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
923        change rho -> rho-rhoConst
924      - replace call find_rho to find_rhonum
925    o initialisation of rFlx extended to full array (required by TAF)
926      and shifted to thermodynamics
927    o removed PTRACERS.h in ptracers routine
928    o added surfacetendencyPtr to S/R parameter list pracers_forcing
929    o Correcting initialisations for fVerU, fVerV.
930    o helping TAF to recognize dependency on kUp for
931      fVerU, fVerV
932    o Replacing delZ by delR in pkg/ctrl/
933    checkpoint51o_pre
934    
935    o undid all of cp51 pending some cleanups and discussion
936    o added the [#include "AD_CONFIG.h"] statement to all files that need
937       it for adjoint/tl #defines
938     o re-worked the build logic in genmake2 to support AD_CONFIG.h
939     o removed tools/genmake since it no longer works
940    
941    checkpoint51n_post
942    o modifications to make FREEZE flux visible to pkg/kpp
943      - moved surfaceTendencyTice from pkg/seaice to main code
944      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
945      - subroutine FREEZE now limits only surface temperature
946        (this means new output.txt for global_ocean.90x40x15,
947         global_ocean.cs32x15, and global_with_exf)
948    o added surface flux output variables to TIMEAVE_STATVARS
949    
950    checkpoint51n_pre
951    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
952    o added [#include "AD_CONFIG.h"] to all files that use the following
953      defines:
954      - ALLOW_ADJOINT_RUN
955      - ALLOW_TANGENTLINEAR_RUN
956      - ALLOW_ECCO_OPTIMIZATION
957    
958    checkpoint51m_post
959    o incorporating changes to get TAMC/TAF working in genmake2
960      - added new TAMC/TAF targets to the Makefile
961      - various cleanups related to package handling
962      - these changes should have no impact on the forward model
963    
964    checkpoint51l_post
965    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
966     - faster algorithm for cal_addtime.F
967     - higher precision arithmetic, where needed
968     - pkg/exf *startdate variables changed from calendar date to
969       model integration time
970    
971    checkpoint51l_pre
972    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
973    o enable to apply restoring on S & T only in a latitude band.
974    o update output (external_forcing_surf modif. change truncation errors)
975       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
976    
977    checkpoint51k_post
978    o change default to: useNHMTerms=.FALSE.
979     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
980       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
981     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
982        exp1, ideal_2D_oce
983     - change data file of oceanic exp (leave the results unchanged for now)
984       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
985    o set gravitySign automatically according to the vertical coordinate used
986      (and change sign: back to "logical" value: +1 when R increases downward)
987    o added an include barrier to the default CPP_OPTIONS.h and
988      removed the #include "PACKAGES_CONFIG.h" from it
989    o fix a bug in mom_fluxform (from chk51j_post)
990    
991    checkpoint51j_post
992    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
993    o adjusted some flow directives (dynamics, thermodynamics)
994    o added cubed-sphere case to test cost function
995    o heckpoint_lev?_directives.h now include
996      pkg-specific directives, whenever those are enabled.
997    o Moving pkg-specific flow directives to corresponding pkg
998      Moving pkg-specific differentiation list to corresponding pkg
999      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1000      ---> conventions are
1001           - pkg_ad.flow
1002           - pkg_ad_diff.list
1003           - pkg_ad_check_lev?_dir.h
1004    
1005    checkpoint51i_post
1006    o merge of the branch-genmake2
1007      - knowingly breaks the older genmake
1008      - automatic generation of all ALLOW_${PKG_NAME} defines
1009      - new testreport supersedes older testscript
1010    o large number of package inclusion and header cleanups
1011    checkpoint51i_pre
1012    
1013    o new output for adjoin of global ocean vector invariant
1014    o fix for checkpoint of thermodynamic seaice and bulk_force
1015    o Steph gchem various cleanups
1016    
1017    checkpoint 51h_pre
1018    o fixed some single quotes
1019    o modify gchem pkg to be more versatile
1020    o modifications to clean up dic pkg
1021    o add pkg/cfc
1022    
1023    checkpoint51g_post
1024    o provide links for ARPACK and ADM*TLM
1025    o start removing verification/vero/
1026    o update AD-related stuff
1027      (in particular some IF-statements in model/src/ routines)
1028    o adding to verification/global_ocean.90x40x15/ adjoint of
1029      vector invariant setup
1030    
1031    checkpoint51f_post
1032    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1033    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1034      of tracer Green's fucntions for ocean inversion project.
1035    
1036    checkpoint51f_pre
1037    o Added on-the-fly spatial interpolation capability
1038        "USE_EXF_INTERPOLATION" to pkg/exf.
1039      - This is a temporary Cartesian-grid hack until
1040        the super-duper ESMF coupler becomes available.
1041      - See verification/global_with_exf/README for usage example.
1042      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1043        flags and modified pkg/seaice accordingly.
1044    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1045        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1046        non-local transport term.
1047    
1048    checkpoint51e_post
1049    o pkg/mom_vecinv:
1050      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1051      - add time-ave diagnostic of vorticity advection.
1052    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1053    o atmospheric geopotential: - include water vapor effect;
1054                                - use p^kappa in p* scaling.
1055    o land pkg: read initial state from files.
1056    o AIM : add stratospheric drag in the upper level
1057    
1058    checkpoint51d_post
1059    o change function ILNBLNK (=> last non-blank char.) to return zero
1060      (instead of the string length) when the string. char is empty
1061    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1062    o modif's to restore TAMC compatibility
1063      - avoid "_d" constructs in PARAMETER declarations
1064      - avoid interrupting lines by comment lines
1065    o Use cluster local disks for purely local I/O
1066      vs. globally visible disks needed for ctrl stuff
1067      (merged from ecco-branch)
1068      - new active_file_loc... and mdsio_..._loc routines
1069      - affected packages: autodiff, ctrl, grdchk, mdsio
1070    
1071    checkpoint51c_post
1072    o introducing integer flag debugLevel
1073      - debLevZero: suppress all output
1074      - debLevA: standard
1075      - debLevB: equivalent to current debugMode=.TRUE.
1076    o introducing pathname variable mdsioLocalDir for mdsio
1077      that can be specified at runtime
1078      (relevant for cluster I/O to local disk)
1079    `
1080    >>>checkpoint51b_post
1081    adjoint of ptracers
1082    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1083    o extended state in checkpoint_lev?, etc.
1084    o alternative ctrl/cost with tr1 or ptracer
1085    o new comlev1_bibj_ptracers
1086    o new ptracers.flow
1087    o made ptracers_forcing same as external_forcing_s
1088    o added verification for adjoint with ptracers
1089      - adm. grdchk fail so far
1090      - tlm. grdchk OK
1091      - checked tapelev/comlev recomputations: OK
1092    <<<checkpoint51b_pre
1093    
1094    checkpoint51a_post
1095    o added code for biogeochemistry package
1096      - new pkgs: dic, gchem
1097      - new subroutine in ptracers
1098    o modify code for biogeo packages
1099      - in model/src and pkg/ptracers
1100    
1101    checkpoint51
1102    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1103      - autodiff, ctrl, exf, grdchk, seaice
1104      kept separate packages
1105      - cost, ecco, obcs
1106    o updating verification/internal_wave, verification/lab_sea
1107      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1108    
1109    checkpoint50i_post
1110    o Preparing next differentiable checkpoint and sync
1111      of MAIN vs. ecco-branch
1112      - 1st step: this one is differentiable
1113      - 2nd step: next(! not this) checkpoint will have updated packages
1114                  from ecco-branch)
1115    
1116    checkpoint50h_post
1117    o new package "land": provide surface BC for AIM.
1118    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1119    o AIM: use true log-P extrapolation for near surface temp (= as in
1120        F.Molteni paper) ; update aim.5l_cs output.
1121    o New variable in PARM03 for more flexible pickups
1122    o somewhat cleaned package initialisation sequence for
1123      ctrl/ cost/ ecco/ in packages_... routines
1124    
1125    checkpoint50g_post
1126    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1127      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1128      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1129        made the default because of faster convergence than ADI
1130    
1131    checkpoint50f_post
1132    o exf totally restructured
1133      - replaced all exf_set_ routines by one generic exf_set_gen.F
1134        and made sure it's still differentiable
1135      - split exf_getffields.F into new exf_bulkformulae.F
1136      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1137      - updated adjoint/makefile and relevant verif. accordingly
1138    
1139    checkpoint50f_pre
1140     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1141          + change Evap over land. (update aim.5l_cs output)
1142     o added missing .cvsignores and made uniform across expts
1143     o changed configuration of tidal_basin_2d expt
1144     o added pkg/debug functions for tracing code in fatal crashes
1145     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1146     o new fn in pkg/monitor to stop model if solution grows too big
1147     o removed lots of single quotes from comments
1148    
1149    checkpoint50e_post
1150    o make KPP work with PTRACERS
1151     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1152       nearly a copy of kpp_transport_s
1153     - there is no analogue to SurfaceTendencyS, so I have to use
1154       gPtr(of the surface layer) instead
1155    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1156    checkpoint50e_pre
1157    
1158    checkpoint50d_post
1159    o change kpp output from multiple-record state files to single-record state
1160      files analogous to write_state.F
1161    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1162      analogous to the cg2d-related output.
1163    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1164      so that writing to internal file fn (with length 512) fails.
1165    checkpoint50d_pre
1166    
1167    checkpoint50c_post
1168    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1169    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1170    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1171    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1172    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1173    
1174    checkpoint50c_pre
1175    Merging from release1_p13:
1176    o bug fix for pkg/seaice dynamic solver
1177    o Added SEAICE_initialHEFF to pkg/seaice
1178    
1179    checkpoint50b_post
1180    o store u*,v* in gU,V instead of in guNm1,gvNm1
1181    o in order to put the momForcing out of the Adams-Bashforth:
1182      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1183      to timestep.F
1184    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1185    o re-generate output for highly sensitive test-exp:
1186       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1187    
1188    checkpoint50b_pre
1189    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1190    o corrected CPP option mismatch in exf_Bulk... functions for case
1191      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1192    
1193    checkpoint50a_post
1194    o Bug fix for merging between c50 and KPP.
1195      ikey was passed from thermodynamics to kpp_calc via
1196      common block rather than being recomputed in kpp_calc,
1197      in contradiction with new key itdkey.
1198      New key ikppkey created, and tamc.h headers updated.
1199    
1200    checkpoint50
1201    - 2nd step of merge with ecco-branch:
1202      merge changes in ecco-branch back into main trunk
1203    - bug fix in find_alpha
1204    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1205    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1206    - merged some sliced AD support routines
1207    
1208    checkpoint49
1209    merged from ecco-branch:
1210    o exf:
1211      - Enable initialisation of forcing fields to constant
1212        (runtime) values.
1213      - in exf_getffields.F
1214        Reduce i-/j-loop to interior domain, discarding overlaps.
1215        That also fixes wrong TAF-key computations for key_1, key_2
1216        with bulf formulae.
1217      - exf_init.F modify #ifdef for exf_init_evap
1218      - exf_getffieldrec.F, ctrl_getrec.F
1219        The following INT-usages are not safe:
1220          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1221          fldcount = int(fldsecs/fldperiod) + 1
1222        and were modified.
1223    o autodiff: checkpoint_lev...
1224      - updated storing for bulk formulae (some arrays were missing)
1225      - added state for seaice package
1226      - synchronized with main branch
1227    o DIVA:
1228      Modif.s in
1229      - the_main_loop.F
1230      - the_model_main.F
1231      and added cost_final_restore.F cost_final_store.F
1232      o With these changes, it is possible to fully separate
1233        the first forward run to compute the cost function (mdthe_main_loop)
1234        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1235        into separate model executions.
1236        This enables better tuning of DIVA to given queue sizes.
1237      o Loss of cost function value in consecutive DIVA runs is
1238        fixed by storing to 'costfinal' file.
1239      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1240        beginning/end of adjoint integration is accounted for.
1241      The current changes apply to TAF-1.4.26.
1242      TAF has one remaining bug, requiring one manual change
1243      (see MITgcm manual).
1244    o cal: synchronized between MAIN and ecco-branch
1245    
1246    checkpoint48i_post
1247    o Changes to restore differentiability of code w.r.t. previous tag
1248      (mostly adding new routines to make list and replacing
1249      pressure by totPhiHyd).
1250    o Updated and merged grdchk package
1251      - has both ADM and TLM checks
1252      - works for single- and multi-proc.
1253      - output cleaned
1254      - worked successfully for parallel DIVA
1255    o genmake:
1256      - Adding -platform=SP4
1257      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1258    o Modif. for DIVA:
1259      ctrl_unpack should not be called in intermediate DIVA interval.
1260      (similar thing would apply for active files such as
1261      tbar, sbar, psbar, which should not be reinitialised;
1262      only relevant for ecco-branch)
1263    
1264    checkpoint48h_post
1265    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1266    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1267    o Added SEAICE_initialHEFF to pkg/seaice
1268    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1269    
1270    checkpoint48g_post
1271    --- EOS:
1272    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1273      store total Potential in totPhyHyd for diagnostics & EOS.
1274    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1275    --- Pressure/geopotential gradient:
1276    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1277    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1278      ( changes results of global_ocean_pressure )
1279    o NLFS + z-coord.: add eta*Rho' contribution.
1280    o accurate phiHyd when using interface-W at the middle between 2 centers
1281     ( changes results of ideal_2D_oce )
1282    o includes r* 2nd term in potential gradient.
1283    
1284    checkpoint48f_post
1285    Merging from release1_p12:
1286    o Modifications for using pkg/exf with pkg/seaice
1287      - improved description of the various forcing configurations
1288      - added basic radiation bulk formulae to pkg/exf
1289      - units/sign fix for evap computation in exf_getffields.F
1290      - updated verification/global_with_exf/results/output.txt
1291    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1292      (SBO) core products, including oceanic mass, center-of-mass,
1293      angular, and bottom pressure (see pkg/sbo/README.sbo).
1294    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1295      to avoid negative values in shallow regions.
1296      - updated verification/natl_box/results/output.txt
1297      - updated verification/lab_sea/results/output.txt
1298    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1299    o Added useSingleCpuIO option (see PARAMS.h).
1300    o Updated useSingleCpuIO option in mdsio_writefield.F to
1301      work with multi-field files, e.g., for single-file pickup.
1302    o pkg/seaice:
1303      - bug fix in growth.F: QNET for no shortwave case
1304      - added HeffFile for specifying initial sea-ice thickness
1305      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1306    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1307      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1308    o pkg/seaice:
1309      - adjoint-friendly modifications
1310      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1311    
1312    checkpoint48e_post
1313    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1314    o dynamics: change definition of computational domain & adapt mom_fluxform
1315      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1316    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1317        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1318        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1319        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1320        inverted_barometer solid-body.cs-32x32x1
1321      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1322    
1323    checkpoint48d_post
1324    o in preparation for r*:
1325     a) use pre-computed gradient of hydrostatic potential:
1326        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1327     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1328        => affects results of glob_oce_pressure (different truncation error)  
1329      update output.txt of ideal_2D_oce & global_ocean_pressure
1330    
1331    checkpoint48d_pre
1332    o in preparation for r*:
1333      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1334      pass the 2 comp. of the grad. as arguments to momentum S/R.
1335      but for the moment, only used if it does not change the results.
1336    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1337    
1338    checkpoint48c_post
1339    Modifications in treatment of initial flux forcing controls
1340    to avoid extra storing of flux fields.
1341    
1342    checkpoint48c_pre
1343    o Added tidal_basin_2d experiment (currently 1D!)
1344    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1345    
1346    checkpoint48b_post
1347    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1348     (modification to pressure gradient not yet implemented)
1349    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1350      (for U & V) that are used for vertical advection of momentum.
1351    
1352    checkpoint48a_post
1353    o In preparation for r*, use temp. array to compute vertical transport
1354       in flux-form momentum pkg. => change results of few test-exp.
1355      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1356                        lab_sea, natl_box & plume_on_slope
1357    
1358    checkpoint48
1359    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1360    
1361    checkpoint47j_post
1362    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1363    o moved adexch from forward_step to addummy_in_stepping
1364    o added exch in ctrl_map_...
1365    o aveFreq.=0. at end of cost_final to avoid overwrite in
1366      reverse checkpointing loop
1367    o Yet more changes in gmredi:
1368      * adgmredi_calc_tensor
1369        avoiding all recomputation of gmredi_slope_limit
1370      * adgmredi_x/y/rtransport
1371        added flag for excessive storing to avoid recomp. of
1372        u/v/rtans, dTdx/y/z
1373        -> this is not really necessary and very memory-consuming
1374      * adgmredi_slope_psi:
1375        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1376      * gmredi_slope_limit
1377        re-activated full calculation of taperfct for case 'ac02'
1378    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1379    
1380    checkpoint47i_post
1381    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1382    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1383      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1384    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1385    o gmredi: fix few bugs.
1386    
1387    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1388    This will be a good checkpoint to plug into the ecco-branch.
1389    o few modif.'s to get latest version adjointed
1390      (mainly kick out code in ini_linear_phisurf)
1391    o modif's to run adjoint with exactConserv
1392    o case GM_BOLUS_ADVEC should be cleaned
1393      S/R gmredi_slope_psi should be cleaned
1394    o verification/carbon now has exactConserv=.TRUE.
1395    
1396    checkpoint47g_post
1397    o time-average AIM output: becomes independent from statvars time-average
1398      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1399    o After TAF bug fix:
1400      Tested adjoint of gmredi package.
1401      Tests were done with checkpoint47 rather than with latest
1402      checkpoint47f_post since the latter is broken for the adjoint
1403      verification/carbon/ contains both ADM and TLM gradient checks.
1404    Here they are, before they get changed/lost/stolen.
1405    Mostly modif.'s to fix numerical sensitivities.
1406    Gradient checks OK for
1407    - GM_taper_scheme:
1408      * clipping
1409      * ac02
1410      * linear
1411      * glw91
1412      * dm95
1413      * ldd97
1414    - GMREDI_OPTIONS:
1415      * GM_VISBECK_VARIABLE_K
1416      * GM_NON_UNITY_DIAGONAL
1417      * GM_EXTRA_DIAGONAL
1418      * GM_BOLUS_ADVEC
1419    in conjunction with data.gmredi parameters to be checked in
1420    in a few minutes under verification/carbon/code/
1421    
1422    checkpoint47f_post
1423    Merging from release1_p10:
1424    o modifications for using pkg/exf with pkg/seaice
1425      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1426        and SEAICE_EXTERNAL_FLUXES
1427      - pkg/exf CPP options EXF_READ_EVAP and
1428        EXF_NO_BULK_COMPUTATIONS
1429      - usage examples are Experiments 8 and 9 in
1430        verification/lab_sea/README
1431      - verification/lab_sea default experiment now uses
1432        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1433    
1434    checkpoint47e_post
1435    o created a tag prior to creating a branch
1436    
1437    checkpoint47d_post
1438    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1439      at the bottom boundary had an erroneous half slip boundary condition
1440    o added bottom drag and no slip boundary condition capabilities to
1441      oceanic pressure coordinates code
1442    o added new verification experiment global_ocean_pressure, this experiment is
1443      also described in the tutorial section of the manual
1444    checkpoint47d_pre
1445    
1446    checkpoint47c_post
1447    o Added a verification experiment for a global cubed-sphere ocean run
1448      -  verification/global_ocean.cubed32x32x30
1449      -  uses pkg/therm_seaice and pkg/bulk_forcing
1450    
1451    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1452    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1453      when using P-coordinate; only implemented for atmospheric config.
1454    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1455      NOTES: requires option NONLIN_FRSURF to be "#define".
1456    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1457    
1458    checkpoint47b_post
1459    Merging from release1_p9:
1460    o pkg/seaice
1461      - removed GOTO's and added taf directives
1462      - double precision constants to reduce the g77 (Linux)
1463        to F77 (SGI) differences reported in release1_p8
1464    o tools/genmake
1465      - added SGI options
1466    o verification/testscript
1467      - updated to that of checkpoint47a_post
1468    o verification/global_ocean.90x40x15/input/eedata
1469      - modified for SGI f77 compatibility
1470    o verification/lab_sea
1471      - added description of sea-ice model
1472      - added missing matlab routines
1473      - added test of thermodynamics parallelization
1474    
1475    checkpoint47a_post
1476    o new pkg: aim_v23
1477     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1478       for now, keep the same surface forcing as before.
1479     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1480     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1481     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1482    o add diagnostic of surface correction term in monitor output
1483    
1484    o bulk_force and therm_seaice
1485    - Two packages:  bulk_force (Bulk forcing)
1486      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1487    - Earlier integration from Stephaine Dutkiewicz
1488      and Patrick Heimbach.
1489    - Two ifdef statements for compile time,
1490       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1491    
1492    checkpoint47
1493    differentiable version of checkpoint46n_post
1494    o bug fix in quasihydrostaticterms
1495    o * "clean" adjoint code (in terms of extensive recomputations)
1496        can now be obtained for all GMREDI options (i.e. for
1497        - GM_VISBECK_VARIABLE_K
1498        - GM_NON_UNITY_DIAGONAL
1499        - GM_EXTRA_DIAGONAL
1500        - GM_BOLUS_ADVEC )
1501      * However, wrong gradient check problem remains unsolved.
1502      * New CPP options have been introduced for different
1503        tapering schemes
1504    o external_fields_load now part of differentiation list
1505    o pressure needs multiple storing;
1506      would be nice to have store_pressure at beginning or
1507      end of forward_step, e.g. by having phiHyd global (5-dim.)
1508      (NB: pressure is needed for certain cases in find_rho,
1509      which is also invoked through convective_adjustment).
1510    o recomputations in find_rho for cases
1511     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1512    o #define ATMOSPHERIC_LOADING should be differentiable
1513    o ini_forcing shifted to begining of initialise_varia
1514    o Incorporating QNVS line search routines into MITgcm
1515      (this is separate code, and therefore not under pkg)
1516      lsopt/, optim/
1517    o Updated verification/carbon/
1518      - #define GM_VISBECK_VARIABLE_K
1519      - GM_taper_scheme    = 'ldd97'    
1520    
1521    checkpoint46n_post
1522    Merging from release1_p8:
1523    o verification/natl_box:
1524      updating new external_fields_load routine
1525    o New package: pkg/seaice
1526      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1527      The sea-ice code is based on Hibler (1979-1980).
1528      Two sea-ice dynamic solvers, ADI and LSR, are included.
1529      In addition to computing prognostic sea-ice variables and diagnosing
1530      the forcing/external data fields that drive the ocean model,
1531      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1532      The implied surface heat flux is then stored in variable
1533      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1534      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1535      non-local transport term.  Because this call precedes model
1536      thermodynamics, temperature under sea-ice may not be "exactly" at
1537      the freezing point by the time theta is dumped or time-averaged.
1538      N.B.: fairly large differences in accuracy occur across
1539            different platforms/compilers; comparison between
1540            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1541            generated output gives:
1542       T           S           U           V
1543      C D M    c        m  s        m  s        m  s        m  s
1544      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1545      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1546      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1547    
1548      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1549    o GAD:
1550      - generated new common blocks to account for call of
1551        same gad routines with differing traceridentities
1552        (needed to modify tracerIdentity indices in GAD.h)
1553      - generated separate common blocks for case useCubedSphereExchange
1554        (Department of Futurology)
1555      - parameter lists to gmredi_?transport: added tracerIdentity
1556      - added new key indices to tamc.h
1557    o external_fields_load:
1558      - added this routine to TAF list
1559      - needed to make some common blocks global and additional storing
1560        along the same lines as exf package (checkpoint_lev?_directives.h)
1561    o exf:
1562      updated external forcing package
1563      - bug fixes carried over from ecco-branch
1564        (missing OBCS_OPTIONS.h in two routines)
1565      - enable easy to use "no forcing".
1566      - added exf I/O for atmospheric loading
1567      - added exf I/O for runoff data
1568      - transfered scaling between exf <-> MITgcm to exf namelist
1569    o Adding new verification experiment global_with_exf.
1570      This verification experiment is almost identical to the
1571      global_ocean.90x40x15 experiment, except that it uses
1572      the exf (and cal) package instead of the
1573      external_fields_load routine (cf README file).
1574    
1575    checkpoint46m_post
1576    o modified testscript to return -- when there are no lines of "%MON" output
1577    o added new flag "quasiHydrostatic" for QH mode
1578      and new routine quasihydrostaticterms()
1579    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1580      New routine: mom_u_coriolis_nh()
1581    o fixed sign of non-hydrostatic metric terms in u and v equations.
1582      Depend on correct sign of gravitySign.
1583    o added work.pc* to .cvsignore in aim directories using ifc
1584    o introduced flag for controllin non-hydrostatic metric terms
1585    o removed gravitySign from PARM04
1586    o switched to g77/ifc from pgf77 in aim experiments
1587    
1588    checkpoint46l_post
1589    o made convective adjustment work with pressure coordinates:
1590     - changed the direction of k-loop in convective_adjustment.F for the
1591       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1592     - adjusted the reference pressure k-index in convective_adjustment.F
1593     - adjusted the convection condition in convect.F (in analogy to
1594       calc_ivdc.F)
1595     - convective_adjustment no longer computes anything on the halos
1596     - removed the warnings about negative salinity from find_rho.F and
1597       find_alpha.F; instead the new routine look_for_neg_salinity, called
1598       at the beginning of find_rho, find_alpha, and find_beta, does a
1599       check of the entire slice, if CPP-option
1600       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1601    checkpoint46l_pre
1602    
1603    checkpoint46k_post
1604    o fixed the verification/global_ocean.90x40x15 experiment:
1605     - new bathymetry (the world according to A., JMC, and M.)
1606     - new initial fields and forcing fields (*.bin files)
1607     - new POLY3.COEFFS (for the next release one should switch to a full
1608       equation of state: JMD95P or MDJWF)
1609     - fixed several errors and redundancies in the data file
1610     - experiment uses looped cells
1611     - added matlab directory with diagnostic scripts for plotting of output
1612    
1613    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1614     - read AIM physics parameters from a file (data.aimphys)
1615     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1616    
1617    checkpoint46j_post
1618    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1619    o move wVel computation at the end of the time step, in S/R integr_continuity
1620    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1621    o update timeave pkg for wVel diagnostic.
1622    checkpoint46j_pre
1623    
1624    checkpoint46i_post
1625    o Clean up AIM package (and keep the results unchanged):
1626      include CPP_OPTION and use IMPLICT NONE in all routines ;
1627      declare all the variables _RL ; use _d 0 for all numerical constants.
1628      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1629    
1630    checkpoint46h_post
1631    o cleaned up the use of rhoNil and rhoConst.
1632      - rhoNil should only appear in the LINEAR equation of state, everywhere
1633        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1634        and the dynamical equations are all divided by rhoConst
1635    o introduced new parameter rhoConstFresh, a reference density of fresh
1636      water, to remove the fresh water flux's dependence on rhoNil. The default
1637      value is 999.8 kg/m^3
1638    o cleanup up external_forcing.F and external_forcing_surf.F
1639      - can now be used by both OCEANIC and OCEANICP
1640    checkpoint46h_pre
1641    
1642     Added code to convert surface volume flux (fresh water) into
1643     a mass flux when using P coordinates in the ocean (OCEANICP).
1644     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1645    
1646    checkpoint46g_post
1647    o Include a new diagnostic variable phiHydLow for the ocean model
1648      - in z-coordinates, it is the bottom pressure anomaly
1649      - in p-coordinates, it is the sea surface elevation
1650      - in both cases, these variable have global drift, reflecting the mass
1651        drift in z-coordinates and the volume drift in p-coordinates
1652      - included time averaging for phiHydLow, be aware of the drift!
1653    o depth-dependent computation of Bo_surf for pressure coordinates
1654      in the ocean (buoyancyRelation='OCEANICP')
1655      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1656        Theta, Salinity, and Pressure in the parameter list. This routine is
1657        presently contained in find_rho.F. This routine does not give the
1658        correct density for 'POLY3', which would be a z-dependent reference
1659        density.
1660    o cleaned up find_rho
1661      - removed obsolete 'eqn' from the parameter list.
1662    o added two new verification experiments: gop and goz
1663      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1664    checkpoint46g_pre
1665    
1666    checkpoint46f_post
1667    o Enable tangent linear (forward mode) gradient checks:
1668      - extended active file handling to g_... files
1669      - added TANGENT_SIMULATION to theSimulationMode
1670      - extended grdchk package accordingly
1671    o added tangent linear setup in verification/carbon/code_ftl
1672    o added adjoint setup in verification/front_relax/code_ad
1673    
1674    checkpoint46e_post
1675    o Added new equation of state -> MDJWF
1676      - EOS of McDougall et al., 2002, JAOT, submitted
1677      - caveat: the equation of state is only valid for a smaller (more
1678        realistic?) range of values than JMD95P/Z and UNESCO
1679      - added masks to the calculation of pressure in store_pressure
1680      - added more check values for density in check_eos (ini_eos.F), some of
1681        the old check values are out of the range of the MDJWF-eos, so don't
1682        expect perfect matches for those
1683    checkpoint46e_pre
1684    
1685    checkpoint46d_post
1686    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1687      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1688      case of pressure coordinates. eosType='JMD95Z' in
1689      combination with buoyancyRelation='OCEANICP' now causes an error.
1690    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1691      in find_alpha/beta.
1692    checkpoint46d_pre
1693    
1694    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1695      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1696    
1697    checkpoint46c_post
1698    o Changes necessary for ocean in p-coordinates
1699     -  Added new buoyancy relation = 'OCEANICP'
1700     -  Added new parameters = gravitySign (this used to be contained inside
1701        the factor dRdZ which I added when we first switched to R coordinates).
1702     X GM/Redi is not compatible (yet)
1703     X bottom drag and no-slip need to be debugged.
1704    checkpoint46c_pre
1705    
1706    checkpoint46b_post
1707    o Added new equation of state -> JMD95Z and JMD95P
1708      - EOS of Jackett and McDougall, 1995, JAOT
1709      - moved all EOS parameters into EOS.h
1710      - new routines ini_eos.F, store_pressure.F
1711    o Added UNESCO EOS, but not recommended because it requires
1712      in-situ temperature (see JMD95)
1713    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1714      unesco.f to be used with POLY3
1715    checkpoint46b_pre
1716    
1717    checkpoint46a_post
1718    o Added (atmospheric) pressure loading
1719      - new field in FFIELDS.h, etc...
1720      - new cpp flag ATMOSPHERIC_LOADING
1721    o Changed hFacC to _hFacC in calc_phi_hyd.F
1722    o Added SHORTWAVE_HEATING to some files for consistency
1723    checkpoint46a_pre
1724    
1725    checkpoint46
1726    further merges from release1_p5
1727    o new ctrl package
1728      - adopted from ECCO environment to enable optimization
1729      - added Eliassen Palm fluxes to controls
1730    o added Eliassen Palm flux controls to gradient check package
1731    o cost package
1732      - Compatible with new ctrl package
1733      - added Eliassen Palm cost hooks
1734      - modif's of existing cost functions
1735    o Adjoint-related bug fixes in kpp:
1736      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1737      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1738    o autodiff package
1739      - flow directives:
1740        + new for S/R do_the_model_io
1741        + enhanced for S/R checkpoint
1742        + new gmredi.flow
1743      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1744        disable adcommon.h/g_common.h by default.
1745      - fixed problem for adjoint of global_max
1746    o modified verification/carbon/
1747    o New setup for adjoint of global_ocean
1748    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1749    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1750    o incorporated hooks for sponge layer code (external_forcing.F)
1751    
1752    checkpoint45d_post
1753    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1754    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1755      (affects plume_on_slope "cg2d" output)
1756    o add new parameter deltaTfreesurf for free-surface time stepping
1757    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1758    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1759    o change phiMin in exp1 (to agree with documentation)
1760    o add new flags:
1761     - T,S forcing inside/outside Adams-Bashforth
1762     - turn off temp,salt advection and/or forcing
1763     - for each tracer, define internal flag for multiDimAdvection & A-B
1764    o monitor: change definition of KE to check conservation of Energy
1765    
1766    checkpoint45c_post
1767    o Removed f90 comments ("!")
1768    o Modified initialisations to enable exf package for MITgcm
1769      (without invoking ECCO_PACKAGE).
1770    o modifications to gradient check package (Martin Losch)
1771      - enable centered differences
1772      - modified format of standard output
1773    
1774    checkpoint45b_post
1775    o cleaned exchange calls in cg2d
1776    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1777    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1778      to configure barotropic setup (Martin Losch)
1779    o moved some initialisations within bi,bj loop in dynamics
1780      (TAF flow dependency)
1781    o in initialise_varia, moved call packages_init_variables
1782      before convective_adjustment_init
1783      (corresponding adjustment of TAF tape initialisation).
1784    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1785    
1786    checkpoint45a_post
1787    o compute Rho over the whole domain (extend iMin,jMin indices)
1788    o specific exchange for X-slice domain (case Ny=1)
1789    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1790    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1791    
1792    checkpoint44h_post = checkpoint45
1793    o Fix to restore differentiability:
1794      place at which packages_init_variables is called in
1795      initialise_varia is crucial for reverse control flow.
1796    o modifications in GMRedi to enable stable adjoint
1797      (corresponding modif's in thermodynamics, dynamics)
1798    o added missing hook for sponge layer code in external_forcing
1799    o modified test cost functions
1800    o storing in gad_advection (plus removal of write(0,*)!
1801    o missing headers TR1.h added in convective_adjustment routines
1802    o errorMessageUnit set non-equal zero in eeboot
1803      (conflict on some platforms, e.g. IBM SP3)
1804    o modified carbon verif.
1805    
1806    checkpoint44h_pre
1807    o vertical grid option: allow to put the Interface at the middle between
1808      2 cell-centers ; replace delZ in pkg/kpp by drF.
1809    o GM Advective form: Tracers are advected using the residual transport (=
1810      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1811    
1812    checkpoint44g_post
1813    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1814      results) ; ifdef missing in thermodynamics.F
1815    
1816    checkpoint44f_pre,checkpoint44f_post
1817    o added PTRACERS package
1818      This allows an arbitrary number of passive tracers to be integrated
1819      forward simultaneously with the dynamicaly model.
1820      + Implemented so far:
1821        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1822        - I/O and checkpointing
1823        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1824      + Not implemented so far:
1825        - KPP
1826        - OBCS
1827      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1828        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1829        line in data.pkg.
1830      + This package is disabled by default since it increases storage.
1831    
1832    
1833    o testscript: added -cleanup option
1834    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1835                 b) enable to filter 2D fields.
1836    
1837    checkpoint44e_pre,post
1838    o re-wrote convective adjustment to use pre-calculated weights
1839      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1840      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1841      Original calls to convect() still in place.
1842    
1843    chkpt44d_pre,post
1844    o added missing EXCLUDE_MONITOR flags
1845    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1846      (incompatible typ in MIN/MAX expressions caused problems
1847      on IBM SP3)
1848    o in genmake added variable MAKEDEPEND
1849      plus resetting for case SunOS
1850    o added timer_stats.c routine for IBM SP3
1851    o removed variables in dynamics
1852    !!! I forgot to create tag chkpt44d_pre !!!
1853    !!! But chkpt44d_pre = chkpt44c_post    !!!
1854    
1855    o real fresh water flux implemented with non-linear free-surface.
1856    
1857    chkpt44c_pre,post
1858    o few fix (mask in shap_s2, EmPmR in external_field_load,
1859      USE_NATURAL_BCS in solve_for_P);
1860    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1861    
1862    checkpoint44b_pre/_post
1863    o merge of relevant stuff from the ecco-branch:
1864      - genmake: removed $S64 overwrite for case SunOS
1865      - pkg/exf: update and corrections for field swapping and obcs
1866      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1867                  harmonized between ECCO and MITgcm
1868      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1869                      updated checkpointing_lev... lists for obcs
1870      - model/src: minor changes in forward_step, plot_field
1871                   added directive for divided adjoint in the_main_loop
1872      - pkg/mdsio: added mdsio_gl_slice
1873    
1874    o check parameters & config (chkpt44a_pre,post)
1875    o OBC and NonLin_FrSurf.
1876    
1877    checkpoint44
1878    o fix bug in mom_vi_del2uv
1879    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1880    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1881    o update AIM experiments (NCEP input files)
1882    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1883    o added some stuff for AD
1884    
1885    checkpoint43
1886    o added two new advection tests
1887    o added global 4x4 degree ocean test
1888    o added test of H&S94 with free surface on cube
1889    o some final mods for gradient check, adjoint,...
1890    
1891    checkpoint42
1892      Fixed AD-related problems:
1893    o Store directives up-to-date with re-arranged Adams-Bashforth
1894      (mainly thermodynamics.F)
1895    o New store directives for multi-dim. advection schemes
1896      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1897      * new common block and key passkey
1898      (mainly gad_advection.F)
1899    o Modified store directives for split of dynamics/thermodynamics
1900      for the case ALLOW_KPP
1901    o Cleaned argument list for timestep_tracer.F
1902    
1903    checkpoint41
1904    o re-formatted/added comments in prologues of key subroutines
1905      to work with protex
1906    
1907    checkpoint40
1908    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1909    o added FLT (floats) package from Arne along with demo. experiment
1910    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1911      implementation of forward-in-time forcing terms
1912    o more mods for non-linear free-surface including new variable
1913    o modified multi-dim method to work on cube
1914    o bug fix in KPP (from DM)
1915    
1916    checkpoint40pre9
1917    o added DST advection schemes
1918    o fix MPI bug on SGI's
1919    o modifications for non-linear free-surface
1920    o fixed conditionals for fixed flow/passive tracer only mode
1921    o added tension/strain form of stress tensor
1922    o changes to commenting of arguments for TAF/TAMC
1923    o added/updated many matlab scripts
1924    o added multi-dimensional advection method for tracers
1925      
1926    checkpoint40pre8
1927    o new package rw/
1928      Added method for dumping intermediate local arrays:
1929      mdsio_writetile - same as mdsio_writefield except works from inside
1930                        bi,bj loop
1931      mdsio_writelocal - same as mdsio_writetile except works for local
1932                         arrays
1933      write_local_r? - higher-level wrapper for mdsio_writelocal
1934      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1935      Example given at end of mom_vecinv.F that dumps some local arrays.
1936    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1937      control flux-form versus vector invariant code.
1938      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1939      or genmake -DISABLE ...
1940    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1941      (additional storing is now needed for case vecinv;
1942      currently nothing implemented to switch this storing off
1943      in case fluxform is used since no CPP flag available).
1944    
1945    checkpoint40pre7
1946    o bug fix in dynamics.F
1947      calc_viscosity called before k=1,Nr loop.
1948    o added some #ifdef's ALLOW_PASSIVE_TRACER
1949    o cleaned initialisations in ctrl_map_ini
1950      related to TAF
1951    
1952    checkpoint40pre6
1953    o split dynamics into thermodynamics & dynamics
1954    o corresponding split of calc_diffusivity into
1955      calc_diffusivity, calc_viscosity
1956      (kpp_calc_diff, kpp_calc_visc).
1957    o Added diffkr, kapgm to control variables
1958    o bug fix in gmredi_slope_limit for ldd97
1959    
1960    checkpoint40pre5
1961    o proper initialization of Adams-Bashforth time stepping
1962      + uses forward step for very first step of model (iter=0)
1963    o re-generated *all* output since almost all output is modified by this
1964      change (sorry but we've been putting this one off for about 2 years)
1965      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1966        *not* regenerated since they are already out of date and I don't
1967        want to create the impression that they are suddenly working.
1968    o removed KAP stuff for DEC's
1969    o modified/added many .cvsignore files in */code and */input
1970    o added new expt "solid-body.cs-32x32x1"
1971      + this uses an alternative form of ini_curvilinear_grid.F which
1972        is not necessarily any better than the current one...
1973    
1974    checkpoint40pre4
1975    o added re-initialisations of utrans,vtrans,rtrans in
1976      calc_common_factors which are crucial for TAF.
1977    o extended iMin,jMin range for calc_common_factors,
1978      calc_diffusivity
1979    o added option ALLOW_PASSIVE_TRACER
1980    o a few minor updates and fixes
1981    
1982    checkpoint40pre3
1983    o created calc_gtr1.F for gad package
1984    o split the_main_loop and re-introduced forward_step
1985    o some recomputations of nIter0 for TAMC
1986    
1987    checkpoint40pre2
1988    o Updated to latest branch of AJA, JMC
1989    o Added gradient check package
1990    o Added routines for passive tracer handling
1991    o Added carbon sequestration sensitivity experiment
1992    
1993    checkpoint39
1994     o Modifications and fixes to support TAMC
1995       (mainly missing or wrong directives)
1996     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1997       in addummy_in_stepping
1998     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1999     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2000     o Included following packages:
2001       cal: calendar
2002       exf: external forcing
2003       ecco: essential routines to control use of cal, exf
2004             (NB: this is not the full ECCO environment)
2005     o disabled some packages by default in genmake
2006    
2007    checkpoint38
2008     o see notes_c37_adj.txt
2009     o corrected wrong layer index in external_forcing_t
2010     o replaced the_main_loop/forward_step by the_main_loop
2011     o removed forceoutput from write_state
2012       (replaced criteria for initial/final state)
2013     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2014    
2015    checkpoint37
2016     o mdsio.F routine split and packaged in pkg/mdsio
2017       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2018        used unless genmake -disable=mdsio)
2019     o allow a more precise surface-geopotential gradient for the atmosphere
2020       taking into account the change in space of Alpha (=1/rho) at the surface.
2021     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2022       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2023     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2024       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2025       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2026     o Time-Average diagnostics defined as a pseudo package "timeave".
2027     o pickup files : old pickup (before c35) did not work with new code (c35
2028       and after) unless activating 2 commented lines in initialise-varia.
2029     o Non-Hydrostatic pickup file Pb fixed.
2030     o bug with Rigid-lid version (since c35) fixed.  
2031    
2032    checkpoint36
2033     o implement Crank-Nickelson barotropic time-stepping
2034     o recover Time-Average diagnostics
2035     o fix Pb in checkpoint (PR#19)
2036     o AIM become a standard package ; clean unused CPP_kees
2037    
2038    checkpoint35
2039     o subtantial rewrite of dynamics.f
2040     o allows staggered time-stepping
2041     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2042     o added bottom drag (linear + quadratic)
2043    
2044    checkpoint34
2045     o Modified exchange routines for correct reverse simulation.
2046     o Added verification output to comply with bug fix in impldiff.F
2047       as of c33 (exp2, natl_box).
2048     o Corrected store directives in dynamics.F
2049     o Corrected array boundaries in impldiff.F
2050     o Corrected array dimensions in gmredi.
2051       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2052     o Added routine GLOBAL_SUM_INT to global_sum.F
2053     o Added mdsio_gl.F for ECCO purposes.
2054    
2055    checkpoint33
2056     o Fixed bug in lower BC in impldiff.F
2057     o Fixed confusion about units of forcing arrays in FFIELDS.h
2058       namely Fu,Fv,Qnet,Qsw,EmPmR:
2059       - Removed verification/natl_box/code/external_fields_scale.F
2060         (did not differ from that in model/src)
2061       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2062         (see FFIELDS.h for description)
2063       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2064         kpp_calc.F and kpp_transport_t.F
2065       - Removed model/src/external_fields_scale.F and calls to it
2066       - verification/natl_box uses flux data with "atmospheric" sign so
2067         a special version of external_fields_load.F is used to
2068         change the data as it's read in. This way, the arrays
2069         have the right units and signs at all times tha a user could
2070         possibly use them.
2071     o Corrected genmake to delete a temporary file during configuration
2072    
2073    checkpoint32
2074     o Scaling of forcing fields moved from external_forcing.F to
2075       external_fields_scale.F, called directly after loading fields.
2076     o Surface relaxation terms added to surface tendency fields in
2077       extra subroutine.
2078     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2079       fields.
2080     o Changes in GMRedi to comply with packaging structure.
2081     o Modifications and bug fixes in KPP package.
2082     o Verification experiment for KPP added (verification/nat_box/)
2083    
2084    checkpoint31
2085     o Packages interface brought in line with defined standard
2086       -> new routines packages_...F
2087       -> changes in initialise_fixed.F, initialise_varia.F
2088       -> enables initialisation interface for ECCO package
2089     o Rescaling of external forcing fields immediately after read
2090       (removed from external_forcing.F)
2091       -> new: surface_fields_scale.F
2092       -> affects ini_foorcing.F, external_fields_load.F
2093     o Computation of surface tendencies before tendency updates.
2094       -> new: external_forcing_surf.F
2095     o Change of variable names useGMRedi, useKPP, useECCO
2096     o Further changes in dynamics.F, impldiff.F for TAMC
2097     o Tested for experiments 0, 2, 4.
2098       - not yet tested for GMRedi.
2099       - not yet tested for KPP.
2100    
2101    checkpoint30
2102     o Updates for OBCs
2103     o New experiment for test OBCs (internal_wave)
2104     o New output.txt in verification/exp4/results/
2105     o Updates for KPP: calculation of viscosity corrected, new variables
2106       kpp_dumpFreq and kpp_taveFreq
2107     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
2108       and entry for T90 in genmake
2109    
2110    checkpoint29
2111     o packaged KPP and GM/Redi
2112    
2113    checkpoint28
2114     o Corrected initialization of hFacMin for difference vertical coordinates
2115     o Modified calculation of partial cell thickness to more robust algorithm
2116     o config_summary.F: replaced write_1D_... by write_0D_...
2117       read_write.F: added subroutines write_0D_...
2118     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
2119       included some initialisations required for TAMC.
2120     o routine calc_isoslopes: modified sqrt computation to make it
2121       differentiable for zero argument.
2122     o routines dynamics, impldiff:
2123       included store directives and tape key computations required for TAMC.
2124     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
2125    
2126    checkpoint27
2127     o fixed calc_isoslopes() to so that cancellation of terms in tensor
2128       formulation works properly with variable resolution.
2129     o restructured the calling tree between the_model_main() and dynamics()
2130     o split initialise() into initialise_fixed() and initialise_varia()
2131     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
2132       in new routine ini_psurf()
2133    
2134    checkpoint26
2135     o moved some #ifdef in optional routines to encompass everything
2136       except the argument declarations. This was using up some memory.
2137     o fixed macros like _ADT to work with both versions of Linux cpp
2138     o cleaned up some unused and uninitialized variables
2139       (helps when debugging with strict compile options)
2140     o split up CPP_EEOPTIONS.h into options and macros
2141       (macros are now in eesupp/inc/CPP_EEMACROS.h)
2142     o patch for 2 processor JAM mode
2143    
2144    checkpoint25
2145     o updates for OBCs and NH
2146     o dramatically reduced memory usage
2147     o added "JAM" routines for use on Artic network
2148     o parameterization of convection by implicit vertical diffusion
2149     o added a diagnostic of convective index
2150     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
2151       (this is was partly for OBCs and NH but also in anticipation of
2152        an explicit free-surface option)
2153     o initial state input files for U and V
2154    
2155    checkpoint24
2156     o Removed some spurious "REAL"s
2157     o Updated KPP to latest version from JPL
2158     o Added a COS(latitude) in horizontal viscosity
2159    
2160    checkpoint23
2161     o Added del^4 diffusion for salt and temperature
2162     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
2163    
2164    checkpoint22
2165     o Made many small changes: implicit none, format(i5), etc...
2166     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
2167    
2168    checkpoint21
2169     o Introduced new I/O package that supports direct-access records (mdsio.F)
2170     o Split-up mid-level I/O routines
2171     o Updated input data for experiments 0,1,2,4 and 5
2172     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
2173    
2174    checkpoint20
2175     o Tidied up open-boundaries some more
2176     o Added non-hydrostatic code
2177     o Fixed some input data
2178     o Modified MPI start-up to work in "coupled" context.
2179    
2180    checkpoint19
2181     o Tidied up directory structure for verification experiments.
2182     o Added new code for open boundaries.
2183     o Corrected advective terms near boundaries.
2184     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
2185     o Implemented free-slip/no-slip BCs and del^4 dissipation.
2186     o Split default parameters out of ini_parms.F into set_defaults.F.
2187    
2188    checkpoint18
2189     o Further changes for optional code generation with
2190       CPP - ugh!
2191    
2192    checkpoint17
2193     o Beginning to incorporating modularity
2194       for supporting atmos. and ocean configs.
2195     o Small changes for TAMC complinace
2196     o New ultra simple test case. Barotropic box
2197       configuration "exp0".
2198    
2199    checkpoint16
2200     o Minor changes to exchange routines to support
2201       accumulation in reverse mode. Adjoint of an
2202       assignment is an addition.
2203     o Changes to support compilation by TAMC (LR(1)
2204       syntax) and by g77 under Linux ( 72 character
2205       limit ).
2206    
2207    checkpoint15
2208     Rewrote exchange routines to allow
2209     o General tile <-> tile connectivity.
2210     o TAMC reverse mode flag ( is this really needed? )
2211     o Variable width overlap and exchange region widths.
2212     o Hooks for sharing data via DMA, Arctic, Memory Channel,
2213       shmput/shmget, VIA, SYSV shmem and every other cool
2214       communication method.
2215    
2216    checkpoint14
2217     Consistent isomorphism chages made. These allow dynamical core
2218     to support both pressure and meters as a vertical coordinate.
2219    
2220    checkpoint13
2221     Release which corrects global_max problem and a couple
2222     of KGM time-averaging diagnostic errors. Also contains
2223     a double-gyre experiment setup as well as the baseline
2224     4 degree global template. The double gyre template is
2225     organised to allow it to be applied automatically to
2226     the baseline configuration.
2227    
2228    branch-point-rdot
2229     A few tidy-ups have been made bt the real point of this
2230     check-point (excuse the pun) is to allow a branch to be
2231     made for the purposes of adding the rDot alterations.
2232     I don't want to commit the rDot to the main-trunk until
2233     we've actually tested it...
2234    
2235    checkpoint12
2236     Tidy up and added generic genmake script (formerly
2237     configure script).
2238     Released to testers.
2239    
2240    checkpoint11
2241     Re-arranged initialise() and introduced ini_vertical_grid()
2242     and ini_masks_etc().
2243    
2244    checkpoint10
2245     Introduced the configure script.
2246     Separated out the diags package.
2247     Added template for writing time-averages of tile/intermediate quantities.
2248     Updated SIZE.h in exp2 and made the data big-endian.
2249    
2250  checkpoint9  checkpoint9
2251   MPI fix. Filename changes (meta/data). salbin*y stuff.   MPI fix. Filename changes (meta/data). salbin*y stuff.
2252   General tidy-up.   General tidy-up.

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