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revision 1.125 by jmc, Mon Jan 27 21:42:19 2003 UTC revision 1.434 by heimbach, Thu Jan 13 00:59:53 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 add saltFlux(+File) forcing capability with periodicExternalForcing
7    o allow to use pkg diagnostics for GM-Redi & ThSIce output
8    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
9    o improvements for the MNC output from DIAGNOSTICS:
10      - correct handling of the unlimitied dimension
11      - all dims now have associated coordinate variables
12      - variables located at U, V, and Corner ("Z") points are now written
13        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
14        *all* data points are output
15    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
16    o added pkg/seaice/seaice_monitor.F
17    o mdsio_readfield.F can now read files visible only to master MPI process.
18    o pkg/seaice: some test code for ice-modified ocean stress
19    o exf_getffields interpolation defaults to bilinear for all scalar forcing
20      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
21      spurious negative numbers for precipitation and humidity.  Will cause
22      some small numerical differences for integrations using pkg/exf/exf_interp.F.
23    o pkg/ctrl/
24      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
25        May be enabled via doPackDiag
26      *  introduce z-scaling of
27         + gradient (doZscalePack) and
28         + control (doZscaleUnpack)
29    o pkg/mdsio/
30      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
31      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
32    
33    checkpoint57b_post
34    o simplify options in diagnostics_fill arguments (remove weird combinations)
35    o fix MNC coordinate variables so that they now contain per-face index
36      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
37      general, EXCH2 grids are only aligned to a "local" coordinate system
38    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
39    o Implement instantaneous output within pkg diagnostics:
40      setting a negative frequency in data.diagnostics produces
41     "snap-shot" output (as opposed to time-average if freq > 0)
42    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
43      NOTE: change ptracer diagnostics name: use 2 characters to work with
44            more than 9 tracers. Add also diagnostics of advect & diffus flux.
45    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
46      becomes the coordinate variable for the 'T' dimension
47    o add CF-style coordinate variables to MNC
48      - just a first cut:  numbers are meaningless on the cubesphere and
49        missing along the T axis but otherwise it works!
50    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
51    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
52    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
53      this is based directly on what the model compute, so that the content of
54      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
55    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
56    o clean up build options files for SunOS, in particular
57      - remove -traditional from xmakedepend
58      - change -xarch=v9 to -xarch=native for f77
59      - restore use of make (not gmake)
60      - add CC=gcc if using g77
61    o changes per discussion of AM, JMC, & EH3 today:
62      - move redundant "grid" variables out of "state" -- in preparation of
63        creating proper CF-style coordinate variables and in recognition
64        that any/all grid variables can be easily copied (eg. w/NCO) from
65        the grid files into any of the other NetCDF files
66      - *always* output grid variables with MDSIO (this will eventually be
67        changed)
68      - output MNC grid file if useMNC is true
69    o every instance of _END_MASTER() has been found and replaced with
70      _END_MASTER( myThid ) in order to satisfy certain picky Sun
71      preprocessors
72    o re-arrange diagnostics pkg initialisation:
73     - allow each package to extend the available diagnostics list
74     - add some checking and fix small problems (multi-threaded, ...)
75     - new S/R diagnostics_fill (replace fill_diagnostics):
76       look through the short list of active diag. (instead of the long list)
77       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
78    
79    checkpoint57a_post
80    o this set of changes restores TAMC compatibility
81      tested for global_ocean.90x40x15 adjoint on trough
82      (what a pain)
83    
84    checkpoint57a_pre
85    o some modifs in tools/build_options for sunos
86    o call ctrl_pack for ctrl at end for optimcycle=0
87    
88    checkpoint57
89    o add horizontal bi-harmonic viscosity for vertical velocity
90      - new parameter viscA4W (defaults to viscA4)
91      - affects only non-hydrostatic code
92      - to be done: no-slip lateral boundary conditions
93    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
94    o implement Implicit Vertical advection for pTracers
95    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
96      (implemented also for implicit vertical diffusion & advection)
97    o OBCS: extend application of tracer open boundary conditions
98      to a strip beyond the boundary of width Olx/Oly
99    o add call monitor to TAF set of required calls (flow directives)
100      and include in natl_box_adjoint
101    o untangle a few ifdefs related to cost, ctrl, autodiff
102      untangel a few ALLOW_ECCO_OPTIMIZATION
103    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
104      (theta2, salt2 in ecco_cost_weights)
105    
106    checkpoint56c_post
107    o OBCS as control variables
108      - update ctrl_ad_diff.list, obcs_ad_diff.list
109      - remove balance of obcs controls from default
110      - fix index bug nobcs in ctrl_init
111      - fix dummy fields filen in ctrl_pack
112      - add dummy weights for obcs
113    o lsopt: comment out fort.94 output
114    o optim:
115      - remove unnecessary header files
116      - adjusted namelists
117      - add xerbla.F to Makefile
118    o exf:
119      - multiple modifications of exf_check_range
120      - unit change in exf_init_runoff from [m/year] to [m/s]
121    o mdsio:
122      - i/o-vector change debugLevel from debLevA to debLevB
123    
124    checkpoint56b_post
125    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
126      is called from DO_THE_MODEL_IO
127      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
128      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
129      - clean up PTRACERS_WRITE_TIMEAVE a little
130    o add another verification experiment that tests both the cfc-pkg and
131      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
132      reactive tendencies treated inline with regular timestepping
133    o testreport previously did a lousy job of comparing small numbers, so
134      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
135      implemented in the little c-progam tmp_cmpnum.c which is embedded in
136      testreport.
137    o ptracers_monitor: bug fix for MPI
138    
139    checkpoint56a_post
140    o GCHEM: finish reorganizating the package
141      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
142        (introduces another 3D-array for each passive tracer, but only if
143        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
144        gchemTendency is not needed because the timestep is done separately)
145      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
146      - GCHEM is now---more or less cleanly---separate from PTRACERS
147      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
148        so clear to me how that should be done in a general way.
149    o CFC: improve formatting of output in CFC_ATMOS
150    o PTRACERS:
151      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
152        that ALL experiments with ptracers enable can be checked. This makes
153        GCHEM_MONITOR obsolete.
154      - include a runtime parameter PTRACERS_monitorFreq that defaults to
155        monitorFreq
156      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
157    o add PTRACERS (PTR0[1-5]) to testreport output
158    o exf_check_range:
159      * default changed to .TRUE.
160      * will check values for niter0 if debLevA, every timestep if debLevB
161      * STOP in exf_check_range if 'out of range'
162      * range chosen generous to allow for potential extema
163      TBD: a version with stricter range
164           permitted range would be runtime parameters
165    o GMredi:
166      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
167      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
168      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
169    o GCHEM:
170      - move call to GCHEM_FORCING_SEP, so that it is now called before
171        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
172      - introduced a useGCHEM runtime flag and applied it everywhere.
173      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
174        this flag is now only visible within GCHEM-pkg routines.
175      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
176        be replaced by a 3D array that is computed before thermodynamics; for
177        this, the tracer ID iTracer had to be included into the parameter list
178        of ptracers_forcing
179      - set up forward_step to call gchem_forcing, that will replace
180        gchem_forcing_int in ptracers_forcing
181      - cleaning up
182    o small cleaning of exch2: remove files that are also in eesupp/src
183    
184    checkpoint56
185    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
186    o mnc: cleanup "full" files--fixes out-of-memory problem
187    o ECCO-GODAE
188      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
189      * fully merged and updated from SIO code
190        windstress sign change affects
191        - exf_inscal_[u/v]stress
192        - sign of xx_tau[u/v] adjustments
193        - signs in cost_scat
194      * ctrl_get_gen: avoid update of tau[u/v] for first few days
195      * natl_box_adjoint updated and compressed
196      * 2-level checkpoint switch added
197        (tested in EXP. 1 of natl_box_adjoint)
198      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
199    o SVD
200      * first complete, non-hacked version for SVD calculations
201      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
202        performed via direct access files admtlm_vector.it????
203        (via ctrl_[un]pack)
204      * optimcycle is used for ARPACK iteration counter
205        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
206      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
207        and add linear transforms where necessary
208      * controls are initial/final SST, SSS (can be extended; need to check
209        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
210    o mdsio: filename info to both stderr, stdout
211    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
212      from sign change
213    
214    checkpoint55j_post
215    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
216      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
217    o add consistent build directories and .cvsignore files to verification
218    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
219    o make all subroutines 30 or less characters in length for certain older
220      compilers to work (a thorough search only turns up two routines in
221      pkg/ptracers)
222    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
223      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
224    
225    checkpoint55i_post
226    o change arrays for total vertical diffusivity (2.D if explicit,
227      3.D if implicit) ; each ptracer uses its own background value.
228    o added mnc/NetCDF output capability to ocn_compon_interf
229      - added bits to verification/cpl_aim+ocn so that it can run on
230        ITRDA and other clusters without the mpirun "-wd" option
231    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
232      configuration
233    o give MNC the ability to create additional files rather than
234      exceeding a specified file size limit "MNC_MAX_FILESIZE"
235      - the default is just less than 2GB which is a practical limit
236        on many systems
237    o Compute the non-local term using either KPP vertical diffusivity (=default)
238       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
239    
240    checkpoint55h_post
241    o add verification test "vermix"
242    o remove all the *_ioinc flags and replace with the single global
243      outputTypesInclusive flag
244    o allow to set a vertical profile of vertical diffusivity for T & S
245    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
246    o useMNC moved from data.mnc to data.pkg
247    
248    checkpoint55g_post
249    o Renaming carbon AD experiments to comply with testreport conventions
250    o Updating adjoint of Held-Suarez hs94.1x64x5
251    o Fixing directives for non-ECCO forward_step, after ECCO directives
252      have been fixed to avoid recomp. of do_oceanic_phys
253      Works well for global_ocean.90x40x15,
254      but recomp. issue remains for carbon
255    o Updating adjoint output for natl_box_adjoint after
256      pkg/ecco has been modified (see taga c55d_post)
257    
258    checkpoint55f_post
259    o rename to timeave_init_fixed
260    
261    checkpoint55e_post
262    o some delicate re-shuffle of store directives to avoid one
263      extra call of do_oceanic_physics
264      affects ecco_the_main_loop.F, do_oceanic_physics.F
265      checkpoint_lev1_directives.h
266    o NB: this may break global_ocean adjoint temporarily,
267      but it is clear how to fix it. Will do later, need this now.
268    
269    checkpoint55d_post
270    o ECCO specific cost function terms (up-to-date with 1x1 runs)
271    o ecco_cost_weights is modified to 1x1 runs
272    o modifs to allow observations to be read in as
273      single file or yearly files
274    o enable to read exf forcing fields as either
275      single file or yearly files (flag useExfYearlyFields)
276    checkpoint55d_pre
277    
278    o switch between 2-level and 3-level checkpointing
279    o add ability of MNC to write local and "partial" (eg. 2D slices where
280      the full 3D field is never actually stored) arrays to NetCDF files
281      with the correct (that is, the complete multi-dimensional) set of
282      array indicies
283      - used in mom_vecinv() to write the diagFreq output
284      - tested (demonstrated) in verification/aim.5l_cs
285    o further mnc-ification
286      - add verification/lab_sea to the list with mnc setups
287      - fix undefined mnc v-names in cd_code
288      - add kpp to mnc output (both snapshot and timeave)
289    o non-hydrostatic code
290      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
291        in calc_gw.F
292      - defaults to viscAh
293      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
294        friction or Leith) in non-hydrostatic mode, as long as there is
295        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
296    o pkg/cost
297      extend simple cost functions to treat time mean quantities
298      (T,U,V) via cost_accumulate_state from cost_tile
299    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
300        be 2 times larger than the minimum size the advection scheme requires.
301        now get a perfect conservation of salt in advect_cs test-exp (updated)
302    o GGL90 (Gaspar's TKE mixed layer)
303      - add horizontal diffusion of TKE, requires exchanges in
304        do_fields_blocking_exchanges, horizontal diffusivity is zero by
305        default. In OPA there is no horizontal diffusion of TKE but the
306        mixing coefficients are computed from a horizontal average of TKE of
307        6 points or so. I think that diffusion has a little more physical
308        justification.
309      - clean up ggl90_calc in the hope of reducing memory usage (this hope
310        was in vain)
311      - mask tke-variable in ggl90_init
312    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
313    o fix biharmonic diffusion on CS-grid.
314    o more obcs stuff
315      - added obcs_external_fields_load as an alternative to the EXF-pkg option
316        for reading boundary values. This routine is called from
317        obcs_prescribe_read
318      - updated obcs_check
319      - changed sponge layer relaxation parameter units for days to seconds
320      - turned off sponge layer by default
321      - changed argument list of OBCS_CALC to myTime+deltaTclock
322      - fixed about 35 bugs in obcs_external_fields_load
323    
324    checkpoint55c_post
325    o obcs stuff
326      - new runtime flags useOBCSprescribe, useOBCSbalance
327      - re-arranged obcs_calc
328      - moved exf_getobcs to obcs_prescibe_read
329        obcs_prescibe_read is called after ORLANSKI stuff
330        and independent of it (executable can contain all).
331      - updated obcs_check
332      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
333        These may be necessary only if tangential velocities are
334        prescribed at OB, not sure, needs testing.
335    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
336      which simplifies the calls and passes the ifc check-bounds test
337    
338    checkpoint55b_post
339    o add a 2D scalar, Z location, exchange_2 routine.
340    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
341      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
342      affects advect_cs results (for the wrong reason): update output.txt
343    o use a more standard discretization for biharmonic viscosity ;
344     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
345      affects results of dome set-up: update output.txt
346    o fix gad_advection.F (CubedSphere part), back to version 1.23
347    o fix bug in mom_vi_del2uv.F (CubedSphere part).
348    
349    checkpoint55a_post
350    o merged code to
351      * prescribe/read time-dependent open boundaries
352        (works in conjunction with exf, cal)
353      * sponge layer code for open boundaries
354      * each boundary N/S/E/W now has its own CPP option
355        (healthy for the adjoint)
356    
357    checkpoint55
358    o up-to-date adjoint of previous breaks
359      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
360      - global_ocean_ebm: adjoint still needs fix (TLM ok)
361      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
362      - carbon: * remove tr1-related adjoint verification
363                * add ptracer as control variable
364    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
365      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
366    
367    checkpoint54f_post
368    o in verification/carbin/ remove experiment related to
369      ALLOW_PASSIVE_TRACER (array tr1 etc)
370      code_ad/ input_ad/ results_ad
371    
372    o add two new packages
373      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
374        + subject to optimization (memory)
375      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
376        + subject to reordering (many GOTOs in the original code)
377        + so far opps is called for every (i,j) point, and then operates in
378          the vertical; one may want to reorder the scheme in order operate in
379          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
380          fields)
381    o overhaul of IO so that we now have flags for MDSIO and/or MNC
382      - all verification tests compile and run with linux_ia32_g77
383      - defaults are compatible with current input files--nothing
384        should change if you were not previously using MNC
385      - MNC output has been added in numerous places (eg. timeave)
386        but there are still a few writes not yet do-able with MNC
387        (this is in progress)
388      - flags now allow for either/or/both use of MDSIO and MNC and
389        documentation will soon follow
390      - numerous small formatting cleanups for ProTeX
391    o add version info (via BUILD_INFO.h) to MNC and stdout
392    
393    checkpoint54e_post
394    o add two new packages
395      - pp81 (Packanowski and Philander, 1981), Richardson number and
396        stratification dependent mixing
397      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
398      - these scheme operate in a similar manner as KPP (without ghat, of
399        course), however there is only one diffusivity that is used for both
400        temperature and salinity (and passive tracers)ç
401    o add offline package
402    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
403      provided by Stephanie Dutkiewicz
404    o genmake2: add ability to search for C compilers and cleanup test output
405      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
406    
407    checkpoint54d_post
408    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
409    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
410      leading to additional shift by 5 days each year of integration
411       (i.e. leading to considerable offset over the years)
412    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
413    o start with no AB and no initial filtering (staggerTimeStep):
414      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
415    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
416      (external loading & cpl import/export stay in forward_step.F)
417    o update coupling interface to work with new staggerTimeStep
418    o change MDSIO ptracers_pickup.
419    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
420    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
421    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
422    
423    checkpoint54c_post
424    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
425      this affects (truncation error) output.txt of test-exp:
426       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
427    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
428    o change Qnet to always be the net heat flux, (+upward).
429      affects (truncation error) output of natl_box exp.: updated
430    o define the max number of passive tracers in PTRACERS_SIZE.h
431    o start to test mnc routinely in exp0
432    o add sea-ice loading (sIceLoad) as a new forcing field.
433    
434    checkpoint54b_post
435    o add testreport "-j JOBS" option for parallel builds (tested and pretty
436       impressive on Altix and Opteron systems)
437    o diagnostics can now write NetCDF files through the mnc package
438    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
439    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
440    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
441      affects (truncation error) output of lab_sea & natl_box exp.: updated
442    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
443    
444    checkpoint54a_post
445    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
446    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
447    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
448    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
449      + internal_wave (shift in writing cg2d_ini_res)
450    checkpoint54a_pre
451    
452    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
453      - modified verification/lab_sea and natl_box_adjoint accordingly
454    
455    checkpoint54
456    checkpoint53g_post
457    o prepare splitting of thermodynamics: store convect.counter in common block
458    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
459      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
460    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
461    o new parameter "nShapS": allow to treat differently S from T (nShapT)
462    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
463    o restore adjointability
464    
465    checkpoint53f_post
466    o modifications that affect AIM experiment results (update output.txt):
467      - no advection of S at top interface Nr (pkg/generic_advdiff)
468      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
469    o AIM pkg:
470      - include stability function into surf.Flux derivative relative to Tsurf
471      - calculate clear-sky radiation & surface temp. change (for diagnostics)
472    
473    checkpoint53e_post
474    o merged cylindrical coord configuration
475    o added rotating_tank experiment
476    checkpoint53e_pre
477    
478    checkpoint53d_post
479    o faulks upgraded: re-generate output.txt that have changed:
480       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
481    o Added Bryan and Lewis, 1979, vertical diffusivity profile
482    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
483    o added Sadourny discretization of Coriolis
484      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
485      - re-enabled use of omega3 (useAbsVorticity)
486    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
487      vector-invariant equations
488      - note: does *NOT* yet use same variable visc. for no-slip BC's.
489    o recoded the lateral boundary conditions for non-hydrostatic w, this time
490      hopefully without new bugs
491      - still to do: biharmonic friction for non-hydrostatic w
492    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
493    o regenerated output for global_ocean_ebm (using -ieee)
494    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
495      of mom_common/
496      - simple re-arrangement of instructions within computing loop
497    checkpoint53d_pre
498    
499    checkpoint53c_post
500    o new version of coupler for AIM+thSIce and Ocean models
501     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
502     - land: change Evaporation of snow
503     - aim with thSIce: fix bug in snow-precip.
504    o changes to calc_gw.F
505     - bug fix for w^2 term near the bottom boundary
506     - (hopefully) improve the lateral slip boundary condtions for use with
507        partial/looped cells
508      - because the bug fix changes two verification experiments anyway (exp5
509        and plume on slope), change the lateral boundary condition from half slip
510        to the value of no_slip_sides
511    o ebm package wasnt quite up to the parallel task. Fixed that.
512    o Adjoint of EBM package + verification
513      * TLM OK
514      * ADM not sufficient accuracy yet (needs further testing)
515    
516    checkpoint53b_post
517    o Commiting new energy balance model to repository
518      * package is pkg/ebm
519      * verif. is verification/global_ocean_ebm
520      * references are in ebm_driver.F
521    C      * X. Wang, P. Stone and J. Marotzke, 1999:
522    C        Global thermohaline circulation. Part I:
523    C        Sensitivity to atmospheric moisture transport.
524    C        J. Climate 12(1), 71-82
525    C      * X. Wang, P. Stone and J. Marotzke, 1999:
526    C        Global thermohaline circulation. Part II:
527    C        Sensitivity with interactive transport.
528    C        J. Climate 12(1), 83-91
529    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
530    C        Destabilization of the thermohaline circulation
531    C        by atmospheric eddy transports.
532    C        J. Climate 7(12), 1870-1882
533    o Will need long integration testing.
534    checkpoint53b_pre
535    
536    o created pkg/mom_common in preparation for variable viscosity code
537    o renamed and split ini_mnc_io
538    o pkg/land: only liquid water can diffuse or run-off
539    o AIM using land: soil wetness availability account for snow
540    o added printMapIncludesZeros to EEPARMS namelist
541    
542    checkpoint53a_post
543    o restore TAMC compatiility for exf_constants.h
544      (no usage of _d in .h)
545    o Additional storing in KPP in an attempt to fix
546      TAMC problem with adjoint of KPP code.
547      (no success...)
548      Identical code works fine with TAF.
549    o Fixed verification/natl_box_adjoint experiments.
550      Initial conditions for Experiments 4 and 5 are now
551      set to "SEAICE_initialHEFF=0", which is more reasonable,
552      and hence gives results closer to that of Experiment 2.
553      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
554    
555    checkpoint53
556    o stable checkpoint with up to date adjoint
557      TLM tests only run for 1st grdchk at the moment. Its unclear if
558      this is a code problem or a problem with resetting code for g_
559      variables that is being autogenerated wrong.
560      Otherwise:
561       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
562       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
563         are both still in chaos following their security messes.
564    
565    checkpoint52n_post
566    o various build (mostly genmake2) changes including:
567      - ability to build/run more easily within Cygwin and MacOS X
568      - more complicated Makefiles with a stronger dependence on Gnu Make
569    o pkg/seaice modifications
570      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
571        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
572        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
573      - changed proxy for geostrophic velocity and updated
574        verification/lab_sea/results/* accordingly
575      - removed ADI dynamic solver from pkg/seaice
576      - replaced all occurrences of 1/CSTICE or 1/CSUICE
577        they caused a segmentation fault under certain circumstances
578      - removed unused field WATR
579    o bug fix in exf-package:
580      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
581         now reflect that.
582    o small fixes in the cal-package:
583      - set reference date to first of January for the 'model'-calendar
584      - failing of cal_CheckDate in cal_FullDate now actually results in a
585        warning
586    o small modifications in exf-package to increase flexibility:
587      - change climtempfreeze from a constant to a runtime parameter that
588        is specified in data.exf_clim (default = -1.9)
589      - introduce runtime parameter windstressmax (default = 2.0) that is
590        specified in data.exf
591    o fix in pkg/thsice:
592      - update Evap (Tsf changes) to be consistent with Latent heat flux
593      - maintain snow precipitation unchanged (even if Tsf >=0).
594     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
595    
596    checkpoint52m_post
597    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
598      this does not change any of the results, because myIter=0 in swfrac always
599      lead to jwtype=2 (the default anyway), but the call makes little sense
600      as a default
601    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
602    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
603      atmospheric model (AIM) to use it ; add a "slab ocean" component.
604    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
605    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
606    o extending useSingleCpuIO option to work with new exch2 I/O format
607      - old-style, missing-tile I/O is still accessible by defining CPP
608        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
609    o monitor package can write to NetCDF files and/or STDOUT
610    o fix re-definition bug in MNC_GRID_INIT_ALL()
611    o doc/api_reference added
612      - a framework for building an API Reference Manual using all
613        the "protex" comments embedded in the code
614      - see pkg/generic_advdiff, pkg/mnc for examples
615    o MNC:
616      - make myThid the last argument for all subroutines
617      - new default for the grid files: NO halos
618      - add useMNC and other run-time flags
619      - separate per-file-group handling of the unlimited dimension
620      - early initialization of MNC w/ flags read at the eeboot stage
621        and lookup tables set in initialize_fixed
622      - write all MNC output to a freshly-created directory
623    o thermodynamics sea-ice (thsice) is now tested with testreport.
624    o test exp. advect_cs: use the standard cs32 grid ; update output.
625    o Added functionality to grdchk:
626      pick global i,j,k position (or nearest wet) where to perform check.
627    
628    checkpoint52l_post
629    o new land formulation:
630      a) use ground enthalpy as prognostic variable to ensure exact
631         energy conservation.
632      b) account for water temperature and for latent heat of freezing
633         in all processes (rain, run-off, ground storage)
634      c) compute surface and ground temperature implicitly.
635    o aim_v23 modification for new land model:
636      a) Treat separately land / ocean / sea-ice surface fluxes
637         to allow implicit computation of land & sea-ice surface temp.
638      b) add snow precipitation.
639    checkpoint52l_pre
640    
641    o fix problem (when 1 tile is empty) in min/max monitor.
642    o fix bug in timeAve (u,vZetatave in common block)
643    o no restoring terms under ice for pkg/seaice
644    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
645    o bug fix for pkg/seaice pickups
646    o change MNC call locations and add coordinate attributes
647    o mask vorticity at the corner ; affects global_ocean.cs output
648    o fix ini_curvilinear_grid ; test CS experiments with mpi
649    o aim.5l_cs: modify sea-ice fraction input file ; update output
650    o exf: Adding simple range check routine for exf fields after read
651    
652    checkpoint52k_post
653    o removed top-level directory "diags"
654      - we migrated these functions to pkg/timeave a long time ago
655    o fixed bug introduced in pkg/monitor
656    o accuracy ctrlprec = 32 insuffient for gradient checks using
657      averaged fields (I/O via cost_averages)
658      -> use ctrl.h in active_file*.F to control I/O precision.
659    o paramter list of CALL ADTHE_MAIN_LOOP
660    o added initial do_the_model_io to ecco
661    o set all ...Freq to zero after cost_final
662      taveFreq, dumpFreq, pChkptFreq
663    o MAIN and ECCO differentiability restored
664    
665    checkpoint52j_post
666    o fix nchklev in tamc.h for global_ocean...
667    o Bringing flow and store directives up-to-date
668    o Really weird thing!
669      call do_the_model_io from the_main_loop with parameters
670      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
671      TAF places a faulty re-call of initialise_varia
672      after cost_final call which should not be there!
673    checkpoint52j_pre
674    
675    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
676      error messages
677    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
678    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
679      debug output
680    o modfied mdsio_writefield.F to handle non-global files under exch2
681    o update AIM Cubed-Sphere exp (aim.5l_cs):
682      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
683    o update AIM Equatorial Channel exp:
684      use standard aim_v23 pkg and change the SST fields to be more realistic.
685    o globalFile now works with exch2
686    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
687      mon_vort3.F to make exch2 friendly with >1 tile per cube face
688    o limit timeave output for hi-res integrations
689    
690    checkpoint52i_post
691    o removed CPP_EEOPTIONS.h from verification/*/code
692    o updated the tiling for global_ocean_pressure
693    checkpoint52i_pre
694    
695    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
696      the old pkg/aim).
697    
698    checkpoint52h_pre
699    o shortened offending lines in exch2_send_rx?.template
700    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
701    o genmake2: add build & execute test for NetCDF code
702    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
703      old grid files, moved CPP_EEMACROS.h to pkg/exch2
704    o added useSingleCPUIO flag to monitor.F and mon_out.F
705    o added temporary hack for sea-ice dynamics on the cube:
706      metric terms are ignored and it is assumed that
707      there is no sea-ice on cube faces 1, 2, 4, and 5.
708    
709    checkpoint52f_post
710    o added exch2 cube routines to pkg/exch2
711    o modified hs94.cs-32x32x5 to use it
712    o added new grid files to hs94.cs-32x32x5
713    checkpoint52f_pre
714    
715    checkpoint52e_post
716    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
717      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
718    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
719      to work with implicit vertical advection and AB ;
720    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
721    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
722     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
723    checkpoint52e_pre
724    
725    o fix bug in impldiff when Nr=1 or Nr=2.
726    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
727    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
728    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
729      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
730    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
731    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
732    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
733    
734    checkpoint52d_post
735    o re-tiled many expts to allow comparison in multi-processor mode
736      - updated output accordingly
737      - changed hs94.128x64x5 to use intial T from file rather than use the
738        random number generator
739    o add infrastructure in model routines for fizhi and gridalt packages
740    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
741    o changes to permit hi-res, cubed-sphere, configuration
742      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
743      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
744      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
745        of surface winds for the cube
746      (A verification experiment, based on global_ocean.cs32x15, but with
747       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
748       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
749       complete with example surface forcing files and matlab scripts to look
750       at the output and compare it with that of global_ocean.cs32x15.)
751    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
752       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
753       to conform to the common rule.
754    o check-in the first version of the coupler + interfaces for multi-components
755       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
756       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
757       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
758       - ocean and atmos. share the same horizontal grid (no interpolation).
759       - exchanges between component and coupler is done in forward_step
760    o new verification experiment, cpl_aim+ocn:
761       coupled ocean - AIM atmosphere on cs32 grid.
762    
763    checkpoint52d_pre
764    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
765    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
766    
767    checkpoint52c_post
768    o Fixing OPTIONS files for use of exf:
769      - ALLOW_ECCO not needed
770      - ECCO_CPPOPTIONS.h should not be included from
771        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
772        as has been the case in the past
773      - All cal/exf related options are currently set in
774        single header file. Should remain so until we
775        agree on a consistent new policy.
776    o Removed all CPP options for cal package.
777      cal has no more CPP options.
778    o modified STOREs in GAD_ADVECTION
779    o corrected key comp. for passkey
780    
781    checkpoint52b_post
782    o new version: "thsice" of thermodynamic sea-ice pkg:
783     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
784     - modify fluxes but do not change theta directly;
785     - light cleaning of bulk_force pkg (still needed with thsice).
786     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
787       + output_thsice.txt to test thsice & bulk_force pkgs.
788    o put back grid & coriolis monitor output.
789    checkpoint52b_pre
790    
791    o call "do_the_model_io" at the beginning (=> dump initial state)
792    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
793    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
794      (need info on NUMBER_OF_PTRACERS)
795    o missing PTRACERS headers in some routines
796    o default tamc.h in pkg/autodiff supposed to crash
797      to ensure proper customization
798    
799    checkpoint52a_post
800    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
801      - moved surfaceTendencyTice from pkg/seaice to main code
802      - subroutine FREEZE_SURFACE now limits only surface temperature
803        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
804        => new output.txt for global_ocean.cs32x15 & global_with_exf
805      - keep the old version of FREEZE for backward compatibility;
806        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
807      - corresponding modifs for TAF directives
808    o added surface flux output variables to TIMEAVE_STATVARS
809    o time-averaged output for pkg/ptracers
810    o fix problem with ECCO-related divided adjoint
811      snapshot file was missing some ad-variables,
812      but no warning issued by TAF
813    
814    checkpoint52a_pre
815    o some bug fixes for #undef REAL4_IS_SLOW
816    
817    checkpoint52 = ecco_c52_e35
818    o after testing adjoints of checkpoint51u_post
819    
820    checkpoint51u_post
821    o this is the post-merge tag of the ecco-branch
822      (needs another clean checkout and re-testing)
823    o various natl_box_adjoint configs and results
824      but no input fields
825    o obcs adjoint not yet merged!
826    o adding ECCO global 1x1 and 2x2 degree configs
827    o updated/extended some store directives for seaice
828    o pkg/ecco now containes ecco-specific part of cost function
829    o top level routines the_main_loop, forward_step
830      supersede those in model/src/
831      previous input data.cost now in data.ecco
832      (new namelist ecco_cost_nml)
833    o in ctrl/ cleaned some cross-dependencies and updated CPP options
834    
835    checkpoint51t_post
836    o this is the pre-merge tag of the ecco-branch
837    
838    checkpoint51s_post
839    o cleanup: removed various obsolete #define-s
840    o pkg/grdchk
841      - renamed 'ph-grd 3' to 'grad-res'
842      - merged from ecco-branch
843        (remaining bug fixes for obcs gradient checks)
844      - additional high-precision output for testreport
845        (grep for 'precision_grdchk_result')
846    
847    checkpoint51r_post
848    o cleaned up or removed CPP_OPTIONS.h files
849    o updated results for some of the tests to reflect the new
850      optfiles (-ieee: -O0 instead of -O3)
851    
852    checkpoint51q_post
853    o cd_code:
854      - moved cd_scheme.F -> cd_code_scheme.F
855      - separate read_checkpoint from cd_code_ini_vars.F
856      - separated cd_code part from write_checkpoint
857      - updated AD_SOURCE, generated .flow
858      - added CD_CODE_VARS.h to the_main_loop
859      - Moving cd_code specific store dir.s to pkg/cd_code
860    o ctrl package totally restructured
861      - pack/unpack now optional and decoupled from
862        xx_/adxx_ I/O
863      - ctrl_pack/unpack cleaned
864        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
865      - confined inclusion of AD_CONFIG.h to where necessary.
866    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
867    
868    checkpoint51p_post
869    o create initial cd_code package
870      - WARNING: the initialization of fields within packages
871        is broken because INI_FIELDS (where READ_CHECKPOINT is
872        called) is called *before* PACKAGES_INIT_VARIABLES.
873        This seems to be backwards since
874        1) its important to initially zero the entire field including
875           the "halo" region
876        2) zeroing needs to be done *before* reading pickup info
877           and the pickup call might or might not happen in any
878           particular run
879      - this needs an overhaul for R2
880    o cleanup verification/*/code/GMREDI_OPTIONS.h
881    o cleanup testreport
882    
883    checkpoint51o_post
884    o bringing AD-related verif's up to date with genmake2
885      - carbon/
886      - global_ocean.90x40x15/
887      - hs.94.1x64x5/
888      - (front_relax/ )
889    o (more) consistent directory structure for AD-related verif.'s
890    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
891    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
892    o bug fix in find_alpha.F for MDJWF:
893      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
894        change rho -> rho-rhoConst
895      - replace call find_rho to find_rhonum
896    o initialisation of rFlx extended to full array (required by TAF)
897      and shifted to thermodynamics
898    o removed PTRACERS.h in ptracers routine
899    o added surfacetendencyPtr to S/R parameter list pracers_forcing
900    o Correcting initialisations for fVerU, fVerV.
901    o helping TAF to recognize dependency on kUp for
902      fVerU, fVerV
903    o Replacing delZ by delR in pkg/ctrl/
904    checkpoint51o_pre
905    
906    o undid all of cp51 pending some cleanups and discussion
907    o added the [#include "AD_CONFIG.h"] statement to all files that need
908       it for adjoint/tl #defines
909     o re-worked the build logic in genmake2 to support AD_CONFIG.h
910     o removed tools/genmake since it no longer works
911    
912    checkpoint51n_post
913    o modifications to make FREEZE flux visible to pkg/kpp
914      - moved surfaceTendencyTice from pkg/seaice to main code
915      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
916      - subroutine FREEZE now limits only surface temperature
917        (this means new output.txt for global_ocean.90x40x15,
918         global_ocean.cs32x15, and global_with_exf)
919    o added surface flux output variables to TIMEAVE_STATVARS
920    
921    checkpoint51n_pre
922    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
923    o added [#include "AD_CONFIG.h"] to all files that use the following
924      defines:
925      - ALLOW_ADJOINT_RUN
926      - ALLOW_TANGENTLINEAR_RUN
927      - ALLOW_ECCO_OPTIMIZATION
928    
929    checkpoint51m_post
930    o incorporating changes to get TAMC/TAF working in genmake2
931      - added new TAMC/TAF targets to the Makefile
932      - various cleanups related to package handling
933      - these changes should have no impact on the forward model
934    
935    checkpoint51l_post
936    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
937     - faster algorithm for cal_addtime.F
938     - higher precision arithmetic, where needed
939     - pkg/exf *startdate variables changed from calendar date to
940       model integration time
941    
942    checkpoint51l_pre
943    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
944    o enable to apply restoring on S & T only in a latitude band.
945    o update output (external_forcing_surf modif. change truncation errors)
946       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
947    
948    checkpoint51k_post
949    o change default to: useNHMTerms=.FALSE.
950     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
951       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
952     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
953        exp1, ideal_2D_oce
954     - change data file of oceanic exp (leave the results unchanged for now)
955       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
956    o set gravitySign automatically according to the vertical coordinate used
957      (and change sign: back to "logical" value: +1 when R increases downward)
958    o added an include barrier to the default CPP_OPTIONS.h and
959      removed the #include "PACKAGES_CONFIG.h" from it
960    o fix a bug in mom_fluxform (from chk51j_post)
961    
962    checkpoint51j_post
963    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
964    o adjusted some flow directives (dynamics, thermodynamics)
965    o added cubed-sphere case to test cost function
966    o heckpoint_lev?_directives.h now include
967      pkg-specific directives, whenever those are enabled.
968    o Moving pkg-specific flow directives to corresponding pkg
969      Moving pkg-specific differentiation list to corresponding pkg
970      Moving pkg-specific checkpoint-lev storing to corresponding pkg
971      ---> conventions are
972           - pkg_ad.flow
973           - pkg_ad_diff.list
974           - pkg_ad_check_lev?_dir.h
975    
976    checkpoint51i_post
977    o merge of the branch-genmake2
978      - knowingly breaks the older genmake
979      - automatic generation of all ALLOW_${PKG_NAME} defines
980      - new testreport supersedes older testscript
981    o large number of package inclusion and header cleanups
982    checkpoint51i_pre
983    
984    o new output for adjoin of global ocean vector invariant
985    o fix for checkpoint of thermodynamic seaice and bulk_force
986    o Steph gchem various cleanups
987    
988    checkpoint 51h_pre
989    o fixed some single quotes
990    o modify gchem pkg to be more versatile
991    o modifications to clean up dic pkg
992    o add pkg/cfc
993    
994    checkpoint51g_post
995    o provide links for ARPACK and ADM*TLM
996    o start removing verification/vero/
997    o update AD-related stuff
998      (in particular some IF-statements in model/src/ routines)
999    o adding to verification/global_ocean.90x40x15/ adjoint of
1000      vector invariant setup
1001    
1002    checkpoint51f_post
1003    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1004    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1005      of tracer Green's fucntions for ocean inversion project.
1006    
1007    checkpoint51f_pre
1008    o Added on-the-fly spatial interpolation capability
1009        "USE_EXF_INTERPOLATION" to pkg/exf.
1010      - This is a temporary Cartesian-grid hack until
1011        the super-duper ESMF coupler becomes available.
1012      - See verification/global_with_exf/README for usage example.
1013      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1014        flags and modified pkg/seaice accordingly.
1015    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1016        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1017        non-local transport term.
1018    
1019    checkpoint51e_post
1020    o pkg/mom_vecinv:
1021      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1022      - add time-ave diagnostic of vorticity advection.
1023    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1024    o atmospheric geopotential: - include water vapor effect;
1025                                - use p^kappa in p* scaling.
1026    o land pkg: read initial state from files.
1027    o AIM : add stratospheric drag in the upper level
1028    
1029    checkpoint51d_post
1030    o change function ILNBLNK (=> last non-blank char.) to return zero
1031      (instead of the string length) when the string. char is empty
1032    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1033    o modif's to restore TAMC compatibility
1034      - avoid "_d" constructs in PARAMETER declarations
1035      - avoid interrupting lines by comment lines
1036    o Use cluster local disks for purely local I/O
1037      vs. globally visible disks needed for ctrl stuff
1038      (merged from ecco-branch)
1039      - new active_file_loc... and mdsio_..._loc routines
1040      - affected packages: autodiff, ctrl, grdchk, mdsio
1041    
1042    checkpoint51c_post
1043    o introducing integer flag debugLevel
1044      - debLevZero: suppress all output
1045      - debLevA: standard
1046      - debLevB: equivalent to current debugMode=.TRUE.
1047    o introducing pathname variable mdsioLocalDir for mdsio
1048      that can be specified at runtime
1049      (relevant for cluster I/O to local disk)
1050    `
1051    >>>checkpoint51b_post
1052    adjoint of ptracers
1053    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1054    o extended state in checkpoint_lev?, etc.
1055    o alternative ctrl/cost with tr1 or ptracer
1056    o new comlev1_bibj_ptracers
1057    o new ptracers.flow
1058    o made ptracers_forcing same as external_forcing_s
1059    o added verification for adjoint with ptracers
1060      - adm. grdchk fail so far
1061      - tlm. grdchk OK
1062      - checked tapelev/comlev recomputations: OK
1063    <<<checkpoint51b_pre
1064    
1065    checkpoint51a_post
1066    o added code for biogeochemistry package
1067      - new pkgs: dic, gchem
1068      - new subroutine in ptracers
1069    o modify code for biogeo packages
1070      - in model/src and pkg/ptracers
1071    
1072    checkpoint51
1073    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1074      - autodiff, ctrl, exf, grdchk, seaice
1075      kept separate packages
1076      - cost, ecco, obcs
1077    o updating verification/internal_wave, verification/lab_sea
1078      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1079    
1080    checkpoint50i_post
1081    o Preparing next differentiable checkpoint and sync
1082      of MAIN vs. ecco-branch
1083      - 1st step: this one is differentiable
1084      - 2nd step: next(! not this) checkpoint will have updated packages
1085                  from ecco-branch)
1086    
1087    checkpoint50h_post
1088    o new package "land": provide surface BC for AIM.
1089    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1090    o AIM: use true log-P extrapolation for near surface temp (= as in
1091        F.Molteni paper) ; update aim.5l_cs output.
1092    o New variable in PARM03 for more flexible pickups
1093    o somewhat cleaned package initialisation sequence for
1094      ctrl/ cost/ ecco/ in packages_... routines
1095    
1096    checkpoint50g_post
1097    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1098      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1099      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1100        made the default because of faster convergence than ADI
1101    
1102    checkpoint50f_post
1103    o exf totally restructured
1104      - replaced all exf_set_ routines by one generic exf_set_gen.F
1105        and made sure it's still differentiable
1106      - split exf_getffields.F into new exf_bulkformulae.F
1107      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1108      - updated adjoint/makefile and relevant verif. accordingly
1109    
1110    checkpoint50f_pre
1111     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1112          + change Evap over land. (update aim.5l_cs output)
1113     o added missing .cvsignores and made uniform across expts
1114     o changed configuration of tidal_basin_2d expt
1115     o added pkg/debug functions for tracing code in fatal crashes
1116     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1117     o new fn in pkg/monitor to stop model if solution grows too big
1118     o removed lots of single quotes from comments
1119    
1120    checkpoint50e_post
1121    o make KPP work with PTRACERS
1122     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1123       nearly a copy of kpp_transport_s
1124     - there is no analogue to SurfaceTendencyS, so I have to use
1125       gPtr(of the surface layer) instead
1126    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1127    checkpoint50e_pre
1128    
1129    checkpoint50d_post
1130    o change kpp output from multiple-record state files to single-record state
1131      files analogous to write_state.F
1132    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1133      analogous to the cg2d-related output.
1134    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1135      so that writing to internal file fn (with length 512) fails.
1136    checkpoint50d_pre
1137    
1138    checkpoint50c_post
1139    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1140    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1141    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1142    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1143    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1144    
1145    checkpoint50c_pre
1146    Merging from release1_p13:
1147    o bug fix for pkg/seaice dynamic solver
1148    o Added SEAICE_initialHEFF to pkg/seaice
1149    
1150    checkpoint50b_post
1151    o store u*,v* in gU,V instead of in guNm1,gvNm1
1152    o in order to put the momForcing out of the Adams-Bashforth:
1153      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1154      to timestep.F
1155    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1156    o re-generate output for highly sensitive test-exp:
1157       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1158    
1159    checkpoint50b_pre
1160    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1161    o corrected CPP option mismatch in exf_Bulk... functions for case
1162      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1163    
1164    checkpoint50a_post
1165    o Bug fix for merging between c50 and KPP.
1166      ikey was passed from thermodynamics to kpp_calc via
1167      common block rather than being recomputed in kpp_calc,
1168      in contradiction with new key itdkey.
1169      New key ikppkey created, and tamc.h headers updated.
1170    
1171    checkpoint50
1172    - 2nd step of merge with ecco-branch:
1173      merge changes in ecco-branch back into main trunk
1174    - bug fix in find_alpha
1175    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1176    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1177    - merged some sliced AD support routines
1178    
1179    checkpoint49
1180    merged from ecco-branch:
1181    o exf:
1182      - Enable initialisation of forcing fields to constant
1183        (runtime) values.
1184      - in exf_getffields.F
1185        Reduce i-/j-loop to interior domain, discarding overlaps.
1186        That also fixes wrong TAF-key computations for key_1, key_2
1187        with bulf formulae.
1188      - exf_init.F modify #ifdef for exf_init_evap
1189      - exf_getffieldrec.F, ctrl_getrec.F
1190        The following INT-usages are not safe:
1191          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1192          fldcount = int(fldsecs/fldperiod) + 1
1193        and were modified.
1194    o autodiff: checkpoint_lev...
1195      - updated storing for bulk formulae (some arrays were missing)
1196      - added state for seaice package
1197      - synchronized with main branch
1198    o DIVA:
1199      Modif.s in
1200      - the_main_loop.F
1201      - the_model_main.F
1202      and added cost_final_restore.F cost_final_store.F
1203      o With these changes, it is possible to fully separate
1204        the first forward run to compute the cost function (mdthe_main_loop)
1205        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1206        into separate model executions.
1207        This enables better tuning of DIVA to given queue sizes.
1208      o Loss of cost function value in consecutive DIVA runs is
1209        fixed by storing to 'costfinal' file.
1210      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1211        beginning/end of adjoint integration is accounted for.
1212      The current changes apply to TAF-1.4.26.
1213      TAF has one remaining bug, requiring one manual change
1214      (see MITgcm manual).
1215    o cal: synchronized between MAIN and ecco-branch
1216    
1217    checkpoint48i_post
1218    o Changes to restore differentiability of code w.r.t. previous tag
1219      (mostly adding new routines to make list and replacing
1220      pressure by totPhiHyd).
1221    o Updated and merged grdchk package
1222      - has both ADM and TLM checks
1223      - works for single- and multi-proc.
1224      - output cleaned
1225      - worked successfully for parallel DIVA
1226    o genmake:
1227      - Adding -platform=SP4
1228      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1229    o Modif. for DIVA:
1230      ctrl_unpack should not be called in intermediate DIVA interval.
1231      (similar thing would apply for active files such as
1232      tbar, sbar, psbar, which should not be reinitialised;
1233      only relevant for ecco-branch)
1234    
1235    checkpoint48h_post
1236    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1237    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1238    o Added SEAICE_initialHEFF to pkg/seaice
1239    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1240    
1241    checkpoint48g_post
1242    --- EOS:
1243    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1244      store total Potential in totPhyHyd for diagnostics & EOS.
1245    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1246    --- Pressure/geopotential gradient:
1247    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1248    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1249      ( changes results of global_ocean_pressure )
1250    o NLFS + z-coord.: add eta*Rho' contribution.
1251    o accurate phiHyd when using interface-W at the middle between 2 centers
1252     ( changes results of ideal_2D_oce )
1253    o includes r* 2nd term in potential gradient.
1254    
1255    checkpoint48f_post
1256    Merging from release1_p12:
1257    o Modifications for using pkg/exf with pkg/seaice
1258      - improved description of the various forcing configurations
1259      - added basic radiation bulk formulae to pkg/exf
1260      - units/sign fix for evap computation in exf_getffields.F
1261      - updated verification/global_with_exf/results/output.txt
1262    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1263      (SBO) core products, including oceanic mass, center-of-mass,
1264      angular, and bottom pressure (see pkg/sbo/README.sbo).
1265    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1266      to avoid negative values in shallow regions.
1267      - updated verification/natl_box/results/output.txt
1268      - updated verification/lab_sea/results/output.txt
1269    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1270    o Added useSingleCpuIO option (see PARAMS.h).
1271    o Updated useSingleCpuIO option in mdsio_writefield.F to
1272      work with multi-field files, e.g., for single-file pickup.
1273    o pkg/seaice:
1274      - bug fix in growth.F: QNET for no shortwave case
1275      - added HeffFile for specifying initial sea-ice thickness
1276      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1277    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1278      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1279    o pkg/seaice:
1280      - adjoint-friendly modifications
1281      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1282    
1283    checkpoint48e_post
1284    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1285    o dynamics: change definition of computational domain & adapt mom_fluxform
1286      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1287    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1288        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1289        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1290        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1291        inverted_barometer solid-body.cs-32x32x1
1292      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1293    
1294    checkpoint48d_post
1295    o in preparation for r*:
1296     a) use pre-computed gradient of hydrostatic potential:
1297        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1298     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1299        => affects results of glob_oce_pressure (different truncation error)  
1300      update output.txt of ideal_2D_oce & global_ocean_pressure
1301    
1302    checkpoint48d_pre
1303    o in preparation for r*:
1304      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1305      pass the 2 comp. of the grad. as arguments to momentum S/R.
1306      but for the moment, only used if it does not change the results.
1307    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1308    
1309    checkpoint48c_post
1310    Modifications in treatment of initial flux forcing controls
1311    to avoid extra storing of flux fields.
1312    
1313    checkpoint48c_pre
1314    o Added tidal_basin_2d experiment (currently 1D!)
1315    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1316    
1317  checkpoint48b_post  checkpoint48b_post
1318  o r* coordinate added in #ifdef NONLIN_FRSURF block.  o r* coordinate added in #ifdef NONLIN_FRSURF block.
1319   (modification to pressure gradient not yet implemented)   (modification to pressure gradient not yet implemented)

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