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revision 1.95 by adcroft, Tue Nov 5 19:14:26 2002 UTC revision 1.440 by jmc, Tue Feb 1 23:27:34 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 cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
7    o move state variable diagnostics to the beginning of the time step ;
8      (note: still needs some work specially for snap-shot diagnostics)
9      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
10    
11    checkpoint57c_post
12    o Change testing option (-ieee) to get closer agreement between g77 & ifort
13    o generate new output.txt files on faulks with g77 & the new -ieee option
14    checkpoint57c_pre
15    
16    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
17      update output.txt of exp. global_ocean.90x40x15
18    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
19      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
20    o add saltFlux(+File) forcing capability with periodicExternalForcing
21    o allow to use pkg diagnostics for GM-Redi & ThSIce output
22    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
23    o improvements for the MNC output from DIAGNOSTICS:
24      - correct handling of the unlimitied dimension
25      - all dims now have associated coordinate variables
26      - variables located at U, V, and Corner ("Z") points are now written
27        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
28        *all* data points are output
29    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
30    o added pkg/seaice/seaice_monitor.F
31    o mdsio_readfield.F can now read files visible only to master MPI process.
32    o pkg/seaice: some test code for ice-modified ocean stress
33    o exf_getffields interpolation defaults to bilinear for all scalar forcing
34      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
35      spurious negative numbers for precipitation and humidity.  Will cause
36      some small numerical differences for integrations using pkg/exf/exf_interp.F.
37    o pkg/ctrl/
38      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
39        May be enabled via doPackDiag
40      *  introduce z-scaling of
41         + gradient (doZscalePack) and
42         + control (doZscaleUnpack)
43    o pkg/mdsio/
44      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
45      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
46    
47    checkpoint57b_post
48    o simplify options in diagnostics_fill arguments (remove weird combinations)
49    o fix MNC coordinate variables so that they now contain per-face index
50      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
51      general, EXCH2 grids are only aligned to a "local" coordinate system
52    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
53    o Implement instantaneous output within pkg diagnostics:
54      setting a negative frequency in data.diagnostics produces
55     "snap-shot" output (as opposed to time-average if freq > 0)
56    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
57      NOTE: change ptracer diagnostics name: use 2 characters to work with
58            more than 9 tracers. Add also diagnostics of advect & diffus flux.
59    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
60      becomes the coordinate variable for the 'T' dimension
61    o add CF-style coordinate variables to MNC
62      - just a first cut:  numbers are meaningless on the cubesphere and
63        missing along the T axis but otherwise it works!
64    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
65    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
66    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
67      this is based directly on what the model compute, so that the content of
68      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
69    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
70    o clean up build options files for SunOS, in particular
71      - remove -traditional from xmakedepend
72      - change -xarch=v9 to -xarch=native for f77
73      - restore use of make (not gmake)
74      - add CC=gcc if using g77
75    o changes per discussion of AM, JMC, & EH3 today:
76      - move redundant "grid" variables out of "state" -- in preparation of
77        creating proper CF-style coordinate variables and in recognition
78        that any/all grid variables can be easily copied (eg. w/NCO) from
79        the grid files into any of the other NetCDF files
80      - *always* output grid variables with MDSIO (this will eventually be
81        changed)
82      - output MNC grid file if useMNC is true
83    o every instance of _END_MASTER() has been found and replaced with
84      _END_MASTER( myThid ) in order to satisfy certain picky Sun
85      preprocessors
86    o re-arrange diagnostics pkg initialisation:
87     - allow each package to extend the available diagnostics list
88     - add some checking and fix small problems (multi-threaded, ...)
89     - new S/R diagnostics_fill (replace fill_diagnostics):
90       look through the short list of active diag. (instead of the long list)
91       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
92    
93    checkpoint57a_post
94    o this set of changes restores TAMC compatibility
95      tested for global_ocean.90x40x15 adjoint on trough
96      (what a pain)
97    
98    checkpoint57a_pre
99    o some modifs in tools/build_options for sunos
100    o call ctrl_pack for ctrl at end for optimcycle=0
101    
102    checkpoint57
103    o add horizontal bi-harmonic viscosity for vertical velocity
104      - new parameter viscA4W (defaults to viscA4)
105      - affects only non-hydrostatic code
106      - to be done: no-slip lateral boundary conditions
107    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
108    o implement Implicit Vertical advection for pTracers
109    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
110      (implemented also for implicit vertical diffusion & advection)
111    o OBCS: extend application of tracer open boundary conditions
112      to a strip beyond the boundary of width Olx/Oly
113    o add call monitor to TAF set of required calls (flow directives)
114      and include in natl_box_adjoint
115    o untangle a few ifdefs related to cost, ctrl, autodiff
116      untangel a few ALLOW_ECCO_OPTIMIZATION
117    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
118      (theta2, salt2 in ecco_cost_weights)
119    
120    checkpoint56c_post
121    o OBCS as control variables
122      - update ctrl_ad_diff.list, obcs_ad_diff.list
123      - remove balance of obcs controls from default
124      - fix index bug nobcs in ctrl_init
125      - fix dummy fields filen in ctrl_pack
126      - add dummy weights for obcs
127    o lsopt: comment out fort.94 output
128    o optim:
129      - remove unnecessary header files
130      - adjusted namelists
131      - add xerbla.F to Makefile
132    o exf:
133      - multiple modifications of exf_check_range
134      - unit change in exf_init_runoff from [m/year] to [m/s]
135    o mdsio:
136      - i/o-vector change debugLevel from debLevA to debLevB
137    
138    checkpoint56b_post
139    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
140      is called from DO_THE_MODEL_IO
141      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
142      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
143      - clean up PTRACERS_WRITE_TIMEAVE a little
144    o add another verification experiment that tests both the cfc-pkg and
145      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
146      reactive tendencies treated inline with regular timestepping
147    o testreport previously did a lousy job of comparing small numbers, so
148      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
149      implemented in the little c-progam tmp_cmpnum.c which is embedded in
150      testreport.
151    o ptracers_monitor: bug fix for MPI
152    
153    checkpoint56a_post
154    o GCHEM: finish reorganizating the package
155      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
156        (introduces another 3D-array for each passive tracer, but only if
157        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
158        gchemTendency is not needed because the timestep is done separately)
159      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
160      - GCHEM is now---more or less cleanly---separate from PTRACERS
161      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
162        so clear to me how that should be done in a general way.
163    o CFC: improve formatting of output in CFC_ATMOS
164    o PTRACERS:
165      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
166        that ALL experiments with ptracers enable can be checked. This makes
167        GCHEM_MONITOR obsolete.
168      - include a runtime parameter PTRACERS_monitorFreq that defaults to
169        monitorFreq
170      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
171    o add PTRACERS (PTR0[1-5]) to testreport output
172    o exf_check_range:
173      * default changed to .TRUE.
174      * will check values for niter0 if debLevA, every timestep if debLevB
175      * STOP in exf_check_range if 'out of range'
176      * range chosen generous to allow for potential extema
177      TBD: a version with stricter range
178           permitted range would be runtime parameters
179    o GMredi:
180      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
181      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
182      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
183    o GCHEM:
184      - move call to GCHEM_FORCING_SEP, so that it is now called before
185        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
186      - introduced a useGCHEM runtime flag and applied it everywhere.
187      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
188        this flag is now only visible within GCHEM-pkg routines.
189      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
190        be replaced by a 3D array that is computed before thermodynamics; for
191        this, the tracer ID iTracer had to be included into the parameter list
192        of ptracers_forcing
193      - set up forward_step to call gchem_forcing, that will replace
194        gchem_forcing_int in ptracers_forcing
195      - cleaning up
196    o small cleaning of exch2: remove files that are also in eesupp/src
197    
198    checkpoint56
199    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
200    o mnc: cleanup "full" files--fixes out-of-memory problem
201    o ECCO-GODAE
202      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
203      * fully merged and updated from SIO code
204        windstress sign change affects
205        - exf_inscal_[u/v]stress
206        - sign of xx_tau[u/v] adjustments
207        - signs in cost_scat
208      * ctrl_get_gen: avoid update of tau[u/v] for first few days
209      * natl_box_adjoint updated and compressed
210      * 2-level checkpoint switch added
211        (tested in EXP. 1 of natl_box_adjoint)
212      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
213    o SVD
214      * first complete, non-hacked version for SVD calculations
215      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
216        performed via direct access files admtlm_vector.it????
217        (via ctrl_[un]pack)
218      * optimcycle is used for ARPACK iteration counter
219        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
220      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
221        and add linear transforms where necessary
222      * controls are initial/final SST, SSS (can be extended; need to check
223        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
224    o mdsio: filename info to both stderr, stdout
225    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
226      from sign change
227    
228    checkpoint55j_post
229    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
230      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
231    o add consistent build directories and .cvsignore files to verification
232    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
233    o make all subroutines 30 or less characters in length for certain older
234      compilers to work (a thorough search only turns up two routines in
235      pkg/ptracers)
236    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
237      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
238    
239    checkpoint55i_post
240    o change arrays for total vertical diffusivity (2.D if explicit,
241      3.D if implicit) ; each ptracer uses its own background value.
242    o added mnc/NetCDF output capability to ocn_compon_interf
243      - added bits to verification/cpl_aim+ocn so that it can run on
244        ITRDA and other clusters without the mpirun "-wd" option
245    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
246      configuration
247    o give MNC the ability to create additional files rather than
248      exceeding a specified file size limit "MNC_MAX_FILESIZE"
249      - the default is just less than 2GB which is a practical limit
250        on many systems
251    o Compute the non-local term using either KPP vertical diffusivity (=default)
252       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
253    
254    checkpoint55h_post
255    o add verification test "vermix"
256    o remove all the *_ioinc flags and replace with the single global
257      outputTypesInclusive flag
258    o allow to set a vertical profile of vertical diffusivity for T & S
259    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
260    o useMNC moved from data.mnc to data.pkg
261    
262    checkpoint55g_post
263    o Renaming carbon AD experiments to comply with testreport conventions
264    o Updating adjoint of Held-Suarez hs94.1x64x5
265    o Fixing directives for non-ECCO forward_step, after ECCO directives
266      have been fixed to avoid recomp. of do_oceanic_phys
267      Works well for global_ocean.90x40x15,
268      but recomp. issue remains for carbon
269    o Updating adjoint output for natl_box_adjoint after
270      pkg/ecco has been modified (see taga c55d_post)
271    
272    checkpoint55f_post
273    o rename to timeave_init_fixed
274    
275    checkpoint55e_post
276    o some delicate re-shuffle of store directives to avoid one
277      extra call of do_oceanic_physics
278      affects ecco_the_main_loop.F, do_oceanic_physics.F
279      checkpoint_lev1_directives.h
280    o NB: this may break global_ocean adjoint temporarily,
281      but it is clear how to fix it. Will do later, need this now.
282    
283    checkpoint55d_post
284    o ECCO specific cost function terms (up-to-date with 1x1 runs)
285    o ecco_cost_weights is modified to 1x1 runs
286    o modifs to allow observations to be read in as
287      single file or yearly files
288    o enable to read exf forcing fields as either
289      single file or yearly files (flag useExfYearlyFields)
290    checkpoint55d_pre
291    
292    o switch between 2-level and 3-level checkpointing
293    o add ability of MNC to write local and "partial" (eg. 2D slices where
294      the full 3D field is never actually stored) arrays to NetCDF files
295      with the correct (that is, the complete multi-dimensional) set of
296      array indicies
297      - used in mom_vecinv() to write the diagFreq output
298      - tested (demonstrated) in verification/aim.5l_cs
299    o further mnc-ification
300      - add verification/lab_sea to the list with mnc setups
301      - fix undefined mnc v-names in cd_code
302      - add kpp to mnc output (both snapshot and timeave)
303    o non-hydrostatic code
304      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
305        in calc_gw.F
306      - defaults to viscAh
307      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
308        friction or Leith) in non-hydrostatic mode, as long as there is
309        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
310    o pkg/cost
311      extend simple cost functions to treat time mean quantities
312      (T,U,V) via cost_accumulate_state from cost_tile
313    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
314        be 2 times larger than the minimum size the advection scheme requires.
315        now get a perfect conservation of salt in advect_cs test-exp (updated)
316    o GGL90 (Gaspar's TKE mixed layer)
317      - add horizontal diffusion of TKE, requires exchanges in
318        do_fields_blocking_exchanges, horizontal diffusivity is zero by
319        default. In OPA there is no horizontal diffusion of TKE but the
320        mixing coefficients are computed from a horizontal average of TKE of
321        6 points or so. I think that diffusion has a little more physical
322        justification.
323      - clean up ggl90_calc in the hope of reducing memory usage (this hope
324        was in vain)
325      - mask tke-variable in ggl90_init
326    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
327    o fix biharmonic diffusion on CS-grid.
328    o more obcs stuff
329      - added obcs_external_fields_load as an alternative to the EXF-pkg option
330        for reading boundary values. This routine is called from
331        obcs_prescribe_read
332      - updated obcs_check
333      - changed sponge layer relaxation parameter units for days to seconds
334      - turned off sponge layer by default
335      - changed argument list of OBCS_CALC to myTime+deltaTclock
336      - fixed about 35 bugs in obcs_external_fields_load
337    
338    checkpoint55c_post
339    o obcs stuff
340      - new runtime flags useOBCSprescribe, useOBCSbalance
341      - re-arranged obcs_calc
342      - moved exf_getobcs to obcs_prescibe_read
343        obcs_prescibe_read is called after ORLANSKI stuff
344        and independent of it (executable can contain all).
345      - updated obcs_check
346      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
347        These may be necessary only if tangential velocities are
348        prescribed at OB, not sure, needs testing.
349    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
350      which simplifies the calls and passes the ifc check-bounds test
351    
352    checkpoint55b_post
353    o add a 2D scalar, Z location, exchange_2 routine.
354    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
355      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
356      affects advect_cs results (for the wrong reason): update output.txt
357    o use a more standard discretization for biharmonic viscosity ;
358     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
359      affects results of dome set-up: update output.txt
360    o fix gad_advection.F (CubedSphere part), back to version 1.23
361    o fix bug in mom_vi_del2uv.F (CubedSphere part).
362    
363    checkpoint55a_post
364    o merged code to
365      * prescribe/read time-dependent open boundaries
366        (works in conjunction with exf, cal)
367      * sponge layer code for open boundaries
368      * each boundary N/S/E/W now has its own CPP option
369        (healthy for the adjoint)
370    
371    checkpoint55
372    o up-to-date adjoint of previous breaks
373      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
374      - global_ocean_ebm: adjoint still needs fix (TLM ok)
375      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
376      - carbon: * remove tr1-related adjoint verification
377                * add ptracer as control variable
378    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
379      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
380    
381    checkpoint54f_post
382    o in verification/carbin/ remove experiment related to
383      ALLOW_PASSIVE_TRACER (array tr1 etc)
384      code_ad/ input_ad/ results_ad
385    
386    o add two new packages
387      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
388        + subject to optimization (memory)
389      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
390        + subject to reordering (many GOTOs in the original code)
391        + so far opps is called for every (i,j) point, and then operates in
392          the vertical; one may want to reorder the scheme in order operate in
393          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
394          fields)
395    o overhaul of IO so that we now have flags for MDSIO and/or MNC
396      - all verification tests compile and run with linux_ia32_g77
397      - defaults are compatible with current input files--nothing
398        should change if you were not previously using MNC
399      - MNC output has been added in numerous places (eg. timeave)
400        but there are still a few writes not yet do-able with MNC
401        (this is in progress)
402      - flags now allow for either/or/both use of MDSIO and MNC and
403        documentation will soon follow
404      - numerous small formatting cleanups for ProTeX
405    o add version info (via BUILD_INFO.h) to MNC and stdout
406    
407    checkpoint54e_post
408    o add two new packages
409      - pp81 (Packanowski and Philander, 1981), Richardson number and
410        stratification dependent mixing
411      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
412      - these scheme operate in a similar manner as KPP (without ghat, of
413        course), however there is only one diffusivity that is used for both
414        temperature and salinity (and passive tracers)ç
415    o add offline package
416    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
417      provided by Stephanie Dutkiewicz
418    o genmake2: add ability to search for C compilers and cleanup test output
419      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
420    
421    checkpoint54d_post
422    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
423    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
424      leading to additional shift by 5 days each year of integration
425       (i.e. leading to considerable offset over the years)
426    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
427    o start with no AB and no initial filtering (staggerTimeStep):
428      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
429    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
430      (external loading & cpl import/export stay in forward_step.F)
431    o update coupling interface to work with new staggerTimeStep
432    o change MDSIO ptracers_pickup.
433    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
434    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
435    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
436    
437    checkpoint54c_post
438    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
439      this affects (truncation error) output.txt of test-exp:
440       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
441    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
442    o change Qnet to always be the net heat flux, (+upward).
443      affects (truncation error) output of natl_box exp.: updated
444    o define the max number of passive tracers in PTRACERS_SIZE.h
445    o start to test mnc routinely in exp0
446    o add sea-ice loading (sIceLoad) as a new forcing field.
447    
448    checkpoint54b_post
449    o add testreport "-j JOBS" option for parallel builds (tested and pretty
450       impressive on Altix and Opteron systems)
451    o diagnostics can now write NetCDF files through the mnc package
452    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
453    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
454    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
455      affects (truncation error) output of lab_sea & natl_box exp.: updated
456    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
457    
458    checkpoint54a_post
459    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
460    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
461    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
462    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
463      + internal_wave (shift in writing cg2d_ini_res)
464    checkpoint54a_pre
465    
466    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
467      - modified verification/lab_sea and natl_box_adjoint accordingly
468    
469    checkpoint54
470    checkpoint53g_post
471    o prepare splitting of thermodynamics: store convect.counter in common block
472    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
473      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
474    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
475    o new parameter "nShapS": allow to treat differently S from T (nShapT)
476    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
477    o restore adjointability
478    
479    checkpoint53f_post
480    o modifications that affect AIM experiment results (update output.txt):
481      - no advection of S at top interface Nr (pkg/generic_advdiff)
482      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
483    o AIM pkg:
484      - include stability function into surf.Flux derivative relative to Tsurf
485      - calculate clear-sky radiation & surface temp. change (for diagnostics)
486    
487    checkpoint53e_post
488    o merged cylindrical coord configuration
489    o added rotating_tank experiment
490    checkpoint53e_pre
491    
492    checkpoint53d_post
493    o faulks upgraded: re-generate output.txt that have changed:
494       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
495    o Added Bryan and Lewis, 1979, vertical diffusivity profile
496    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
497    o added Sadourny discretization of Coriolis
498      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
499      - re-enabled use of omega3 (useAbsVorticity)
500    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
501      vector-invariant equations
502      - note: does *NOT* yet use same variable visc. for no-slip BC's.
503    o recoded the lateral boundary conditions for non-hydrostatic w, this time
504      hopefully without new bugs
505      - still to do: biharmonic friction for non-hydrostatic w
506    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
507    o regenerated output for global_ocean_ebm (using -ieee)
508    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
509      of mom_common/
510      - simple re-arrangement of instructions within computing loop
511    checkpoint53d_pre
512    
513    checkpoint53c_post
514    o new version of coupler for AIM+thSIce and Ocean models
515     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
516     - land: change Evaporation of snow
517     - aim with thSIce: fix bug in snow-precip.
518    o changes to calc_gw.F
519     - bug fix for w^2 term near the bottom boundary
520     - (hopefully) improve the lateral slip boundary condtions for use with
521        partial/looped cells
522      - because the bug fix changes two verification experiments anyway (exp5
523        and plume on slope), change the lateral boundary condition from half slip
524        to the value of no_slip_sides
525    o ebm package wasnt quite up to the parallel task. Fixed that.
526    o Adjoint of EBM package + verification
527      * TLM OK
528      * ADM not sufficient accuracy yet (needs further testing)
529    
530    checkpoint53b_post
531    o Commiting new energy balance model to repository
532      * package is pkg/ebm
533      * verif. is verification/global_ocean_ebm
534      * references are in ebm_driver.F
535    C      * X. Wang, P. Stone and J. Marotzke, 1999:
536    C        Global thermohaline circulation. Part I:
537    C        Sensitivity to atmospheric moisture transport.
538    C        J. Climate 12(1), 71-82
539    C      * X. Wang, P. Stone and J. Marotzke, 1999:
540    C        Global thermohaline circulation. Part II:
541    C        Sensitivity with interactive transport.
542    C        J. Climate 12(1), 83-91
543    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
544    C        Destabilization of the thermohaline circulation
545    C        by atmospheric eddy transports.
546    C        J. Climate 7(12), 1870-1882
547    o Will need long integration testing.
548    checkpoint53b_pre
549    
550    o created pkg/mom_common in preparation for variable viscosity code
551    o renamed and split ini_mnc_io
552    o pkg/land: only liquid water can diffuse or run-off
553    o AIM using land: soil wetness availability account for snow
554    o added printMapIncludesZeros to EEPARMS namelist
555    
556    checkpoint53a_post
557    o restore TAMC compatiility for exf_constants.h
558      (no usage of _d in .h)
559    o Additional storing in KPP in an attempt to fix
560      TAMC problem with adjoint of KPP code.
561      (no success...)
562      Identical code works fine with TAF.
563    o Fixed verification/natl_box_adjoint experiments.
564      Initial conditions for Experiments 4 and 5 are now
565      set to "SEAICE_initialHEFF=0", which is more reasonable,
566      and hence gives results closer to that of Experiment 2.
567      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
568    
569    checkpoint53
570    o stable checkpoint with up to date adjoint
571      TLM tests only run for 1st grdchk at the moment. Its unclear if
572      this is a code problem or a problem with resetting code for g_
573      variables that is being autogenerated wrong.
574      Otherwise:
575       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
576       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
577         are both still in chaos following their security messes.
578    
579    checkpoint52n_post
580    o various build (mostly genmake2) changes including:
581      - ability to build/run more easily within Cygwin and MacOS X
582      - more complicated Makefiles with a stronger dependence on Gnu Make
583    o pkg/seaice modifications
584      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
585        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
586        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
587      - changed proxy for geostrophic velocity and updated
588        verification/lab_sea/results/* accordingly
589      - removed ADI dynamic solver from pkg/seaice
590      - replaced all occurrences of 1/CSTICE or 1/CSUICE
591        they caused a segmentation fault under certain circumstances
592      - removed unused field WATR
593    o bug fix in exf-package:
594      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
595         now reflect that.
596    o small fixes in the cal-package:
597      - set reference date to first of January for the 'model'-calendar
598      - failing of cal_CheckDate in cal_FullDate now actually results in a
599        warning
600    o small modifications in exf-package to increase flexibility:
601      - change climtempfreeze from a constant to a runtime parameter that
602        is specified in data.exf_clim (default = -1.9)
603      - introduce runtime parameter windstressmax (default = 2.0) that is
604        specified in data.exf
605    o fix in pkg/thsice:
606      - update Evap (Tsf changes) to be consistent with Latent heat flux
607      - maintain snow precipitation unchanged (even if Tsf >=0).
608     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
609    
610    checkpoint52m_post
611    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
612      this does not change any of the results, because myIter=0 in swfrac always
613      lead to jwtype=2 (the default anyway), but the call makes little sense
614      as a default
615    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
616    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
617      atmospheric model (AIM) to use it ; add a "slab ocean" component.
618    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
619    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
620    o extending useSingleCpuIO option to work with new exch2 I/O format
621      - old-style, missing-tile I/O is still accessible by defining CPP
622        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
623    o monitor package can write to NetCDF files and/or STDOUT
624    o fix re-definition bug in MNC_GRID_INIT_ALL()
625    o doc/api_reference added
626      - a framework for building an API Reference Manual using all
627        the "protex" comments embedded in the code
628      - see pkg/generic_advdiff, pkg/mnc for examples
629    o MNC:
630      - make myThid the last argument for all subroutines
631      - new default for the grid files: NO halos
632      - add useMNC and other run-time flags
633      - separate per-file-group handling of the unlimited dimension
634      - early initialization of MNC w/ flags read at the eeboot stage
635        and lookup tables set in initialize_fixed
636      - write all MNC output to a freshly-created directory
637    o thermodynamics sea-ice (thsice) is now tested with testreport.
638    o test exp. advect_cs: use the standard cs32 grid ; update output.
639    o Added functionality to grdchk:
640      pick global i,j,k position (or nearest wet) where to perform check.
641    
642    checkpoint52l_post
643    o new land formulation:
644      a) use ground enthalpy as prognostic variable to ensure exact
645         energy conservation.
646      b) account for water temperature and for latent heat of freezing
647         in all processes (rain, run-off, ground storage)
648      c) compute surface and ground temperature implicitly.
649    o aim_v23 modification for new land model:
650      a) Treat separately land / ocean / sea-ice surface fluxes
651         to allow implicit computation of land & sea-ice surface temp.
652      b) add snow precipitation.
653    checkpoint52l_pre
654    
655    o fix problem (when 1 tile is empty) in min/max monitor.
656    o fix bug in timeAve (u,vZetatave in common block)
657    o no restoring terms under ice for pkg/seaice
658    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
659    o bug fix for pkg/seaice pickups
660    o change MNC call locations and add coordinate attributes
661    o mask vorticity at the corner ; affects global_ocean.cs output
662    o fix ini_curvilinear_grid ; test CS experiments with mpi
663    o aim.5l_cs: modify sea-ice fraction input file ; update output
664    o exf: Adding simple range check routine for exf fields after read
665    
666    checkpoint52k_post
667    o removed top-level directory "diags"
668      - we migrated these functions to pkg/timeave a long time ago
669    o fixed bug introduced in pkg/monitor
670    o accuracy ctrlprec = 32 insuffient for gradient checks using
671      averaged fields (I/O via cost_averages)
672      -> use ctrl.h in active_file*.F to control I/O precision.
673    o paramter list of CALL ADTHE_MAIN_LOOP
674    o added initial do_the_model_io to ecco
675    o set all ...Freq to zero after cost_final
676      taveFreq, dumpFreq, pChkptFreq
677    o MAIN and ECCO differentiability restored
678    
679    checkpoint52j_post
680    o fix nchklev in tamc.h for global_ocean...
681    o Bringing flow and store directives up-to-date
682    o Really weird thing!
683      call do_the_model_io from the_main_loop with parameters
684      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
685      TAF places a faulty re-call of initialise_varia
686      after cost_final call which should not be there!
687    checkpoint52j_pre
688    
689    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
690      error messages
691    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
692    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
693      debug output
694    o modfied mdsio_writefield.F to handle non-global files under exch2
695    o update AIM Cubed-Sphere exp (aim.5l_cs):
696      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
697    o update AIM Equatorial Channel exp:
698      use standard aim_v23 pkg and change the SST fields to be more realistic.
699    o globalFile now works with exch2
700    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
701      mon_vort3.F to make exch2 friendly with >1 tile per cube face
702    o limit timeave output for hi-res integrations
703    
704    checkpoint52i_post
705    o removed CPP_EEOPTIONS.h from verification/*/code
706    o updated the tiling for global_ocean_pressure
707    checkpoint52i_pre
708    
709    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
710      the old pkg/aim).
711    
712    checkpoint52h_pre
713    o shortened offending lines in exch2_send_rx?.template
714    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
715    o genmake2: add build & execute test for NetCDF code
716    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
717      old grid files, moved CPP_EEMACROS.h to pkg/exch2
718    o added useSingleCPUIO flag to monitor.F and mon_out.F
719    o added temporary hack for sea-ice dynamics on the cube:
720      metric terms are ignored and it is assumed that
721      there is no sea-ice on cube faces 1, 2, 4, and 5.
722    
723    checkpoint52f_post
724    o added exch2 cube routines to pkg/exch2
725    o modified hs94.cs-32x32x5 to use it
726    o added new grid files to hs94.cs-32x32x5
727    checkpoint52f_pre
728    
729    checkpoint52e_post
730    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
731      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
732    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
733      to work with implicit vertical advection and AB ;
734    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
735    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
736     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
737    checkpoint52e_pre
738    
739    o fix bug in impldiff when Nr=1 or Nr=2.
740    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
741    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
742    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
743      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
744    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
745    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
746    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
747    
748    checkpoint52d_post
749    o re-tiled many expts to allow comparison in multi-processor mode
750      - updated output accordingly
751      - changed hs94.128x64x5 to use intial T from file rather than use the
752        random number generator
753    o add infrastructure in model routines for fizhi and gridalt packages
754    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
755    o changes to permit hi-res, cubed-sphere, configuration
756      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
757      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
758      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
759        of surface winds for the cube
760      (A verification experiment, based on global_ocean.cs32x15, but with
761       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
762       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
763       complete with example surface forcing files and matlab scripts to look
764       at the output and compare it with that of global_ocean.cs32x15.)
765    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
766       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
767       to conform to the common rule.
768    o check-in the first version of the coupler + interfaces for multi-components
769       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
770       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
771       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
772       - ocean and atmos. share the same horizontal grid (no interpolation).
773       - exchanges between component and coupler is done in forward_step
774    o new verification experiment, cpl_aim+ocn:
775       coupled ocean - AIM atmosphere on cs32 grid.
776    
777    checkpoint52d_pre
778    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
779    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
780    
781    checkpoint52c_post
782    o Fixing OPTIONS files for use of exf:
783      - ALLOW_ECCO not needed
784      - ECCO_CPPOPTIONS.h should not be included from
785        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
786        as has been the case in the past
787      - All cal/exf related options are currently set in
788        single header file. Should remain so until we
789        agree on a consistent new policy.
790    o Removed all CPP options for cal package.
791      cal has no more CPP options.
792    o modified STOREs in GAD_ADVECTION
793    o corrected key comp. for passkey
794    
795    checkpoint52b_post
796    o new version: "thsice" of thermodynamic sea-ice pkg:
797     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
798     - modify fluxes but do not change theta directly;
799     - light cleaning of bulk_force pkg (still needed with thsice).
800     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
801       + output_thsice.txt to test thsice & bulk_force pkgs.
802    o put back grid & coriolis monitor output.
803    checkpoint52b_pre
804    
805    o call "do_the_model_io" at the beginning (=> dump initial state)
806    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
807    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
808      (need info on NUMBER_OF_PTRACERS)
809    o missing PTRACERS headers in some routines
810    o default tamc.h in pkg/autodiff supposed to crash
811      to ensure proper customization
812    
813    checkpoint52a_post
814    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
815      - moved surfaceTendencyTice from pkg/seaice to main code
816      - subroutine FREEZE_SURFACE now limits only surface temperature
817        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
818        => new output.txt for global_ocean.cs32x15 & global_with_exf
819      - keep the old version of FREEZE for backward compatibility;
820        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
821      - corresponding modifs for TAF directives
822    o added surface flux output variables to TIMEAVE_STATVARS
823    o time-averaged output for pkg/ptracers
824    o fix problem with ECCO-related divided adjoint
825      snapshot file was missing some ad-variables,
826      but no warning issued by TAF
827    
828    checkpoint52a_pre
829    o some bug fixes for #undef REAL4_IS_SLOW
830    
831    checkpoint52 = ecco_c52_e35
832    o after testing adjoints of checkpoint51u_post
833    
834    checkpoint51u_post
835    o this is the post-merge tag of the ecco-branch
836      (needs another clean checkout and re-testing)
837    o various natl_box_adjoint configs and results
838      but no input fields
839    o obcs adjoint not yet merged!
840    o adding ECCO global 1x1 and 2x2 degree configs
841    o updated/extended some store directives for seaice
842    o pkg/ecco now containes ecco-specific part of cost function
843    o top level routines the_main_loop, forward_step
844      supersede those in model/src/
845      previous input data.cost now in data.ecco
846      (new namelist ecco_cost_nml)
847    o in ctrl/ cleaned some cross-dependencies and updated CPP options
848    
849    checkpoint51t_post
850    o this is the pre-merge tag of the ecco-branch
851    
852    checkpoint51s_post
853    o cleanup: removed various obsolete #define-s
854    o pkg/grdchk
855      - renamed 'ph-grd 3' to 'grad-res'
856      - merged from ecco-branch
857        (remaining bug fixes for obcs gradient checks)
858      - additional high-precision output for testreport
859        (grep for 'precision_grdchk_result')
860    
861    checkpoint51r_post
862    o cleaned up or removed CPP_OPTIONS.h files
863    o updated results for some of the tests to reflect the new
864      optfiles (-ieee: -O0 instead of -O3)
865    
866    checkpoint51q_post
867    o cd_code:
868      - moved cd_scheme.F -> cd_code_scheme.F
869      - separate read_checkpoint from cd_code_ini_vars.F
870      - separated cd_code part from write_checkpoint
871      - updated AD_SOURCE, generated .flow
872      - added CD_CODE_VARS.h to the_main_loop
873      - Moving cd_code specific store dir.s to pkg/cd_code
874    o ctrl package totally restructured
875      - pack/unpack now optional and decoupled from
876        xx_/adxx_ I/O
877      - ctrl_pack/unpack cleaned
878        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
879      - confined inclusion of AD_CONFIG.h to where necessary.
880    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
881    
882    checkpoint51p_post
883    o create initial cd_code package
884      - WARNING: the initialization of fields within packages
885        is broken because INI_FIELDS (where READ_CHECKPOINT is
886        called) is called *before* PACKAGES_INIT_VARIABLES.
887        This seems to be backwards since
888        1) its important to initially zero the entire field including
889           the "halo" region
890        2) zeroing needs to be done *before* reading pickup info
891           and the pickup call might or might not happen in any
892           particular run
893      - this needs an overhaul for R2
894    o cleanup verification/*/code/GMREDI_OPTIONS.h
895    o cleanup testreport
896    
897    checkpoint51o_post
898    o bringing AD-related verif's up to date with genmake2
899      - carbon/
900      - global_ocean.90x40x15/
901      - hs.94.1x64x5/
902      - (front_relax/ )
903    o (more) consistent directory structure for AD-related verif.'s
904    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
905    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
906    o bug fix in find_alpha.F for MDJWF:
907      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
908        change rho -> rho-rhoConst
909      - replace call find_rho to find_rhonum
910    o initialisation of rFlx extended to full array (required by TAF)
911      and shifted to thermodynamics
912    o removed PTRACERS.h in ptracers routine
913    o added surfacetendencyPtr to S/R parameter list pracers_forcing
914    o Correcting initialisations for fVerU, fVerV.
915    o helping TAF to recognize dependency on kUp for
916      fVerU, fVerV
917    o Replacing delZ by delR in pkg/ctrl/
918    checkpoint51o_pre
919    
920    o undid all of cp51 pending some cleanups and discussion
921    o added the [#include "AD_CONFIG.h"] statement to all files that need
922       it for adjoint/tl #defines
923     o re-worked the build logic in genmake2 to support AD_CONFIG.h
924     o removed tools/genmake since it no longer works
925    
926    checkpoint51n_post
927    o modifications to make FREEZE flux visible to pkg/kpp
928      - moved surfaceTendencyTice from pkg/seaice to main code
929      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
930      - subroutine FREEZE now limits only surface temperature
931        (this means new output.txt for global_ocean.90x40x15,
932         global_ocean.cs32x15, and global_with_exf)
933    o added surface flux output variables to TIMEAVE_STATVARS
934    
935    checkpoint51n_pre
936    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
937    o added [#include "AD_CONFIG.h"] to all files that use the following
938      defines:
939      - ALLOW_ADJOINT_RUN
940      - ALLOW_TANGENTLINEAR_RUN
941      - ALLOW_ECCO_OPTIMIZATION
942    
943    checkpoint51m_post
944    o incorporating changes to get TAMC/TAF working in genmake2
945      - added new TAMC/TAF targets to the Makefile
946      - various cleanups related to package handling
947      - these changes should have no impact on the forward model
948    
949    checkpoint51l_post
950    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
951     - faster algorithm for cal_addtime.F
952     - higher precision arithmetic, where needed
953     - pkg/exf *startdate variables changed from calendar date to
954       model integration time
955    
956    checkpoint51l_pre
957    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
958    o enable to apply restoring on S & T only in a latitude band.
959    o update output (external_forcing_surf modif. change truncation errors)
960       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
961    
962    checkpoint51k_post
963    o change default to: useNHMTerms=.FALSE.
964     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
965       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
966     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
967        exp1, ideal_2D_oce
968     - change data file of oceanic exp (leave the results unchanged for now)
969       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
970    o set gravitySign automatically according to the vertical coordinate used
971      (and change sign: back to "logical" value: +1 when R increases downward)
972    o added an include barrier to the default CPP_OPTIONS.h and
973      removed the #include "PACKAGES_CONFIG.h" from it
974    o fix a bug in mom_fluxform (from chk51j_post)
975    
976    checkpoint51j_post
977    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
978    o adjusted some flow directives (dynamics, thermodynamics)
979    o added cubed-sphere case to test cost function
980    o heckpoint_lev?_directives.h now include
981      pkg-specific directives, whenever those are enabled.
982    o Moving pkg-specific flow directives to corresponding pkg
983      Moving pkg-specific differentiation list to corresponding pkg
984      Moving pkg-specific checkpoint-lev storing to corresponding pkg
985      ---> conventions are
986           - pkg_ad.flow
987           - pkg_ad_diff.list
988           - pkg_ad_check_lev?_dir.h
989    
990    checkpoint51i_post
991    o merge of the branch-genmake2
992      - knowingly breaks the older genmake
993      - automatic generation of all ALLOW_${PKG_NAME} defines
994      - new testreport supersedes older testscript
995    o large number of package inclusion and header cleanups
996    checkpoint51i_pre
997    
998    o new output for adjoin of global ocean vector invariant
999    o fix for checkpoint of thermodynamic seaice and bulk_force
1000    o Steph gchem various cleanups
1001    
1002    checkpoint 51h_pre
1003    o fixed some single quotes
1004    o modify gchem pkg to be more versatile
1005    o modifications to clean up dic pkg
1006    o add pkg/cfc
1007    
1008    checkpoint51g_post
1009    o provide links for ARPACK and ADM*TLM
1010    o start removing verification/vero/
1011    o update AD-related stuff
1012      (in particular some IF-statements in model/src/ routines)
1013    o adding to verification/global_ocean.90x40x15/ adjoint of
1014      vector invariant setup
1015    
1016    checkpoint51f_post
1017    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1018    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1019      of tracer Green's fucntions for ocean inversion project.
1020    
1021    checkpoint51f_pre
1022    o Added on-the-fly spatial interpolation capability
1023        "USE_EXF_INTERPOLATION" to pkg/exf.
1024      - This is a temporary Cartesian-grid hack until
1025        the super-duper ESMF coupler becomes available.
1026      - See verification/global_with_exf/README for usage example.
1027      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1028        flags and modified pkg/seaice accordingly.
1029    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1030        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1031        non-local transport term.
1032    
1033    checkpoint51e_post
1034    o pkg/mom_vecinv:
1035      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1036      - add time-ave diagnostic of vorticity advection.
1037    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1038    o atmospheric geopotential: - include water vapor effect;
1039                                - use p^kappa in p* scaling.
1040    o land pkg: read initial state from files.
1041    o AIM : add stratospheric drag in the upper level
1042    
1043    checkpoint51d_post
1044    o change function ILNBLNK (=> last non-blank char.) to return zero
1045      (instead of the string length) when the string. char is empty
1046    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1047    o modif's to restore TAMC compatibility
1048      - avoid "_d" constructs in PARAMETER declarations
1049      - avoid interrupting lines by comment lines
1050    o Use cluster local disks for purely local I/O
1051      vs. globally visible disks needed for ctrl stuff
1052      (merged from ecco-branch)
1053      - new active_file_loc... and mdsio_..._loc routines
1054      - affected packages: autodiff, ctrl, grdchk, mdsio
1055    
1056    checkpoint51c_post
1057    o introducing integer flag debugLevel
1058      - debLevZero: suppress all output
1059      - debLevA: standard
1060      - debLevB: equivalent to current debugMode=.TRUE.
1061    o introducing pathname variable mdsioLocalDir for mdsio
1062      that can be specified at runtime
1063      (relevant for cluster I/O to local disk)
1064    `
1065    >>>checkpoint51b_post
1066    adjoint of ptracers
1067    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1068    o extended state in checkpoint_lev?, etc.
1069    o alternative ctrl/cost with tr1 or ptracer
1070    o new comlev1_bibj_ptracers
1071    o new ptracers.flow
1072    o made ptracers_forcing same as external_forcing_s
1073    o added verification for adjoint with ptracers
1074      - adm. grdchk fail so far
1075      - tlm. grdchk OK
1076      - checked tapelev/comlev recomputations: OK
1077    <<<checkpoint51b_pre
1078    
1079    checkpoint51a_post
1080    o added code for biogeochemistry package
1081      - new pkgs: dic, gchem
1082      - new subroutine in ptracers
1083    o modify code for biogeo packages
1084      - in model/src and pkg/ptracers
1085    
1086    checkpoint51
1087    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1088      - autodiff, ctrl, exf, grdchk, seaice
1089      kept separate packages
1090      - cost, ecco, obcs
1091    o updating verification/internal_wave, verification/lab_sea
1092      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1093    
1094    checkpoint50i_post
1095    o Preparing next differentiable checkpoint and sync
1096      of MAIN vs. ecco-branch
1097      - 1st step: this one is differentiable
1098      - 2nd step: next(! not this) checkpoint will have updated packages
1099                  from ecco-branch)
1100    
1101    checkpoint50h_post
1102    o new package "land": provide surface BC for AIM.
1103    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1104    o AIM: use true log-P extrapolation for near surface temp (= as in
1105        F.Molteni paper) ; update aim.5l_cs output.
1106    o New variable in PARM03 for more flexible pickups
1107    o somewhat cleaned package initialisation sequence for
1108      ctrl/ cost/ ecco/ in packages_... routines
1109    
1110    checkpoint50g_post
1111    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1112      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1113      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1114        made the default because of faster convergence than ADI
1115    
1116    checkpoint50f_post
1117    o exf totally restructured
1118      - replaced all exf_set_ routines by one generic exf_set_gen.F
1119        and made sure it's still differentiable
1120      - split exf_getffields.F into new exf_bulkformulae.F
1121      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1122      - updated adjoint/makefile and relevant verif. accordingly
1123    
1124    checkpoint50f_pre
1125     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1126          + change Evap over land. (update aim.5l_cs output)
1127     o added missing .cvsignores and made uniform across expts
1128     o changed configuration of tidal_basin_2d expt
1129     o added pkg/debug functions for tracing code in fatal crashes
1130     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1131     o new fn in pkg/monitor to stop model if solution grows too big
1132     o removed lots of single quotes from comments
1133    
1134    checkpoint50e_post
1135    o make KPP work with PTRACERS
1136     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1137       nearly a copy of kpp_transport_s
1138     - there is no analogue to SurfaceTendencyS, so I have to use
1139       gPtr(of the surface layer) instead
1140    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1141    checkpoint50e_pre
1142    
1143    checkpoint50d_post
1144    o change kpp output from multiple-record state files to single-record state
1145      files analogous to write_state.F
1146    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1147      analogous to the cg2d-related output.
1148    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1149      so that writing to internal file fn (with length 512) fails.
1150    checkpoint50d_pre
1151    
1152    checkpoint50c_post
1153    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1154    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1155    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1156    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1157    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1158    
1159    checkpoint50c_pre
1160    Merging from release1_p13:
1161    o bug fix for pkg/seaice dynamic solver
1162    o Added SEAICE_initialHEFF to pkg/seaice
1163    
1164    checkpoint50b_post
1165    o store u*,v* in gU,V instead of in guNm1,gvNm1
1166    o in order to put the momForcing out of the Adams-Bashforth:
1167      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1168      to timestep.F
1169    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1170    o re-generate output for highly sensitive test-exp:
1171       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1172    
1173    checkpoint50b_pre
1174    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1175    o corrected CPP option mismatch in exf_Bulk... functions for case
1176      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1177    
1178    checkpoint50a_post
1179    o Bug fix for merging between c50 and KPP.
1180      ikey was passed from thermodynamics to kpp_calc via
1181      common block rather than being recomputed in kpp_calc,
1182      in contradiction with new key itdkey.
1183      New key ikppkey created, and tamc.h headers updated.
1184    
1185    checkpoint50
1186    - 2nd step of merge with ecco-branch:
1187      merge changes in ecco-branch back into main trunk
1188    - bug fix in find_alpha
1189    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1190    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1191    - merged some sliced AD support routines
1192    
1193    checkpoint49
1194    merged from ecco-branch:
1195    o exf:
1196      - Enable initialisation of forcing fields to constant
1197        (runtime) values.
1198      - in exf_getffields.F
1199        Reduce i-/j-loop to interior domain, discarding overlaps.
1200        That also fixes wrong TAF-key computations for key_1, key_2
1201        with bulf formulae.
1202      - exf_init.F modify #ifdef for exf_init_evap
1203      - exf_getffieldrec.F, ctrl_getrec.F
1204        The following INT-usages are not safe:
1205          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1206          fldcount = int(fldsecs/fldperiod) + 1
1207        and were modified.
1208    o autodiff: checkpoint_lev...
1209      - updated storing for bulk formulae (some arrays were missing)
1210      - added state for seaice package
1211      - synchronized with main branch
1212    o DIVA:
1213      Modif.s in
1214      - the_main_loop.F
1215      - the_model_main.F
1216      and added cost_final_restore.F cost_final_store.F
1217      o With these changes, it is possible to fully separate
1218        the first forward run to compute the cost function (mdthe_main_loop)
1219        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1220        into separate model executions.
1221        This enables better tuning of DIVA to given queue sizes.
1222      o Loss of cost function value in consecutive DIVA runs is
1223        fixed by storing to 'costfinal' file.
1224      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1225        beginning/end of adjoint integration is accounted for.
1226      The current changes apply to TAF-1.4.26.
1227      TAF has one remaining bug, requiring one manual change
1228      (see MITgcm manual).
1229    o cal: synchronized between MAIN and ecco-branch
1230    
1231    checkpoint48i_post
1232    o Changes to restore differentiability of code w.r.t. previous tag
1233      (mostly adding new routines to make list and replacing
1234      pressure by totPhiHyd).
1235    o Updated and merged grdchk package
1236      - has both ADM and TLM checks
1237      - works for single- and multi-proc.
1238      - output cleaned
1239      - worked successfully for parallel DIVA
1240    o genmake:
1241      - Adding -platform=SP4
1242      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1243    o Modif. for DIVA:
1244      ctrl_unpack should not be called in intermediate DIVA interval.
1245      (similar thing would apply for active files such as
1246      tbar, sbar, psbar, which should not be reinitialised;
1247      only relevant for ecco-branch)
1248    
1249    checkpoint48h_post
1250    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1251    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1252    o Added SEAICE_initialHEFF to pkg/seaice
1253    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1254    
1255    checkpoint48g_post
1256    --- EOS:
1257    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1258      store total Potential in totPhyHyd for diagnostics & EOS.
1259    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1260    --- Pressure/geopotential gradient:
1261    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1262    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1263      ( changes results of global_ocean_pressure )
1264    o NLFS + z-coord.: add eta*Rho' contribution.
1265    o accurate phiHyd when using interface-W at the middle between 2 centers
1266     ( changes results of ideal_2D_oce )
1267    o includes r* 2nd term in potential gradient.
1268    
1269    checkpoint48f_post
1270    Merging from release1_p12:
1271    o Modifications for using pkg/exf with pkg/seaice
1272      - improved description of the various forcing configurations
1273      - added basic radiation bulk formulae to pkg/exf
1274      - units/sign fix for evap computation in exf_getffields.F
1275      - updated verification/global_with_exf/results/output.txt
1276    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1277      (SBO) core products, including oceanic mass, center-of-mass,
1278      angular, and bottom pressure (see pkg/sbo/README.sbo).
1279    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1280      to avoid negative values in shallow regions.
1281      - updated verification/natl_box/results/output.txt
1282      - updated verification/lab_sea/results/output.txt
1283    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1284    o Added useSingleCpuIO option (see PARAMS.h).
1285    o Updated useSingleCpuIO option in mdsio_writefield.F to
1286      work with multi-field files, e.g., for single-file pickup.
1287    o pkg/seaice:
1288      - bug fix in growth.F: QNET for no shortwave case
1289      - added HeffFile for specifying initial sea-ice thickness
1290      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1291    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1292      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1293    o pkg/seaice:
1294      - adjoint-friendly modifications
1295      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1296    
1297    checkpoint48e_post
1298    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1299    o dynamics: change definition of computational domain & adapt mom_fluxform
1300      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1301    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1302        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1303        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1304        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1305        inverted_barometer solid-body.cs-32x32x1
1306      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1307    
1308    checkpoint48d_post
1309    o in preparation for r*:
1310     a) use pre-computed gradient of hydrostatic potential:
1311        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1312     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1313        => affects results of glob_oce_pressure (different truncation error)  
1314      update output.txt of ideal_2D_oce & global_ocean_pressure
1315    
1316    checkpoint48d_pre
1317    o in preparation for r*:
1318      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1319      pass the 2 comp. of the grad. as arguments to momentum S/R.
1320      but for the moment, only used if it does not change the results.
1321    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1322    
1323    checkpoint48c_post
1324    Modifications in treatment of initial flux forcing controls
1325    to avoid extra storing of flux fields.
1326    
1327    checkpoint48c_pre
1328    o Added tidal_basin_2d experiment (currently 1D!)
1329    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1330    
1331    checkpoint48b_post
1332    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1333     (modification to pressure gradient not yet implemented)
1334    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1335      (for U & V) that are used for vertical advection of momentum.
1336    
1337    checkpoint48a_post
1338    o In preparation for r*, use temp. array to compute vertical transport
1339       in flux-form momentum pkg. => change results of few test-exp.
1340      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1341                        lab_sea, natl_box & plume_on_slope
1342    
1343    checkpoint48
1344    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1345    
1346    checkpoint47j_post
1347    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1348    o moved adexch from forward_step to addummy_in_stepping
1349    o added exch in ctrl_map_...
1350    o aveFreq.=0. at end of cost_final to avoid overwrite in
1351      reverse checkpointing loop
1352    o Yet more changes in gmredi:
1353      * adgmredi_calc_tensor
1354        avoiding all recomputation of gmredi_slope_limit
1355      * adgmredi_x/y/rtransport
1356        added flag for excessive storing to avoid recomp. of
1357        u/v/rtans, dTdx/y/z
1358        -> this is not really necessary and very memory-consuming
1359      * adgmredi_slope_psi:
1360        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1361      * gmredi_slope_limit
1362        re-activated full calculation of taperfct for case 'ac02'
1363    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1364    
1365    checkpoint47i_post
1366    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1367    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1368      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1369    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1370    o gmredi: fix few bugs.
1371    
1372    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1373    This will be a good checkpoint to plug into the ecco-branch.
1374    o few modif.'s to get latest version adjointed
1375      (mainly kick out code in ini_linear_phisurf)
1376    o modif's to run adjoint with exactConserv
1377    o case GM_BOLUS_ADVEC should be cleaned
1378      S/R gmredi_slope_psi should be cleaned
1379    o verification/carbon now has exactConserv=.TRUE.
1380    
1381    checkpoint47g_post
1382    o time-average AIM output: becomes independent from statvars time-average
1383      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1384    o After TAF bug fix:
1385      Tested adjoint of gmredi package.
1386      Tests were done with checkpoint47 rather than with latest
1387      checkpoint47f_post since the latter is broken for the adjoint
1388      verification/carbon/ contains both ADM and TLM gradient checks.
1389    Here they are, before they get changed/lost/stolen.
1390    Mostly modif.'s to fix numerical sensitivities.
1391    Gradient checks OK for
1392    - GM_taper_scheme:
1393      * clipping
1394      * ac02
1395      * linear
1396      * glw91
1397      * dm95
1398      * ldd97
1399    - GMREDI_OPTIONS:
1400      * GM_VISBECK_VARIABLE_K
1401      * GM_NON_UNITY_DIAGONAL
1402      * GM_EXTRA_DIAGONAL
1403      * GM_BOLUS_ADVEC
1404    in conjunction with data.gmredi parameters to be checked in
1405    in a few minutes under verification/carbon/code/
1406    
1407    checkpoint47f_post
1408    Merging from release1_p10:
1409    o modifications for using pkg/exf with pkg/seaice
1410      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1411        and SEAICE_EXTERNAL_FLUXES
1412      - pkg/exf CPP options EXF_READ_EVAP and
1413        EXF_NO_BULK_COMPUTATIONS
1414      - usage examples are Experiments 8 and 9 in
1415        verification/lab_sea/README
1416      - verification/lab_sea default experiment now uses
1417        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1418    
1419    checkpoint47e_post
1420    o created a tag prior to creating a branch
1421    
1422    checkpoint47d_post
1423    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1424      at the bottom boundary had an erroneous half slip boundary condition
1425    o added bottom drag and no slip boundary condition capabilities to
1426      oceanic pressure coordinates code
1427    o added new verification experiment global_ocean_pressure, this experiment is
1428      also described in the tutorial section of the manual
1429    checkpoint47d_pre
1430    
1431    checkpoint47c_post
1432    o Added a verification experiment for a global cubed-sphere ocean run
1433      -  verification/global_ocean.cubed32x32x30
1434      -  uses pkg/therm_seaice and pkg/bulk_forcing
1435    
1436    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1437    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1438      when using P-coordinate; only implemented for atmospheric config.
1439    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1440      NOTES: requires option NONLIN_FRSURF to be "#define".
1441    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1442    
1443    checkpoint47b_post
1444    Merging from release1_p9:
1445    o pkg/seaice
1446      - removed GOTO's and added taf directives
1447      - double precision constants to reduce the g77 (Linux)
1448        to F77 (SGI) differences reported in release1_p8
1449    o tools/genmake
1450      - added SGI options
1451    o verification/testscript
1452      - updated to that of checkpoint47a_post
1453    o verification/global_ocean.90x40x15/input/eedata
1454      - modified for SGI f77 compatibility
1455    o verification/lab_sea
1456      - added description of sea-ice model
1457      - added missing matlab routines
1458      - added test of thermodynamics parallelization
1459    
1460    checkpoint47a_post
1461    o new pkg: aim_v23
1462     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1463       for now, keep the same surface forcing as before.
1464     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1465     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1466     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1467    o add diagnostic of surface correction term in monitor output
1468    
1469    o bulk_force and therm_seaice
1470    - Two packages:  bulk_force (Bulk forcing)
1471      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1472    - Earlier integration from Stephaine Dutkiewicz
1473      and Patrick Heimbach.
1474    - Two ifdef statements for compile time,
1475       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1476    
1477    checkpoint47
1478    differentiable version of checkpoint46n_post
1479    o bug fix in quasihydrostaticterms
1480    o * "clean" adjoint code (in terms of extensive recomputations)
1481        can now be obtained for all GMREDI options (i.e. for
1482        - GM_VISBECK_VARIABLE_K
1483        - GM_NON_UNITY_DIAGONAL
1484        - GM_EXTRA_DIAGONAL
1485        - GM_BOLUS_ADVEC )
1486      * However, wrong gradient check problem remains unsolved.
1487      * New CPP options have been introduced for different
1488        tapering schemes
1489    o external_fields_load now part of differentiation list
1490    o pressure needs multiple storing;
1491      would be nice to have store_pressure at beginning or
1492      end of forward_step, e.g. by having phiHyd global (5-dim.)
1493      (NB: pressure is needed for certain cases in find_rho,
1494      which is also invoked through convective_adjustment).
1495    o recomputations in find_rho for cases
1496     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1497    o #define ATMOSPHERIC_LOADING should be differentiable
1498    o ini_forcing shifted to begining of initialise_varia
1499    o Incorporating QNVS line search routines into MITgcm
1500      (this is separate code, and therefore not under pkg)
1501      lsopt/, optim/
1502    o Updated verification/carbon/
1503      - #define GM_VISBECK_VARIABLE_K
1504      - GM_taper_scheme    = 'ldd97'    
1505    
1506    checkpoint46n_post
1507    Merging from release1_p8:
1508    o verification/natl_box:
1509      updating new external_fields_load routine
1510    o New package: pkg/seaice
1511      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1512      The sea-ice code is based on Hibler (1979-1980).
1513      Two sea-ice dynamic solvers, ADI and LSR, are included.
1514      In addition to computing prognostic sea-ice variables and diagnosing
1515      the forcing/external data fields that drive the ocean model,
1516      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1517      The implied surface heat flux is then stored in variable
1518      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1519      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1520      non-local transport term.  Because this call precedes model
1521      thermodynamics, temperature under sea-ice may not be "exactly" at
1522      the freezing point by the time theta is dumped or time-averaged.
1523      N.B.: fairly large differences in accuracy occur across
1524            different platforms/compilers; comparison between
1525            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1526            generated output gives:
1527       T           S           U           V
1528      C D M    c        m  s        m  s        m  s        m  s
1529      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1530      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1531      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1532    
1533      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1534    o GAD:
1535      - generated new common blocks to account for call of
1536        same gad routines with differing traceridentities
1537        (needed to modify tracerIdentity indices in GAD.h)
1538      - generated separate common blocks for case useCubedSphereExchange
1539        (Department of Futurology)
1540      - parameter lists to gmredi_?transport: added tracerIdentity
1541      - added new key indices to tamc.h
1542    o external_fields_load:
1543      - added this routine to TAF list
1544      - needed to make some common blocks global and additional storing
1545        along the same lines as exf package (checkpoint_lev?_directives.h)
1546    o exf:
1547      updated external forcing package
1548      - bug fixes carried over from ecco-branch
1549        (missing OBCS_OPTIONS.h in two routines)
1550      - enable easy to use "no forcing".
1551      - added exf I/O for atmospheric loading
1552      - added exf I/O for runoff data
1553      - transfered scaling between exf <-> MITgcm to exf namelist
1554    o Adding new verification experiment global_with_exf.
1555      This verification experiment is almost identical to the
1556      global_ocean.90x40x15 experiment, except that it uses
1557      the exf (and cal) package instead of the
1558      external_fields_load routine (cf README file).
1559    
1560    checkpoint46m_post
1561    o modified testscript to return -- when there are no lines of "%MON" output
1562    o added new flag "quasiHydrostatic" for QH mode
1563      and new routine quasihydrostaticterms()
1564    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1565      New routine: mom_u_coriolis_nh()
1566    o fixed sign of non-hydrostatic metric terms in u and v equations.
1567      Depend on correct sign of gravitySign.
1568    o added work.pc* to .cvsignore in aim directories using ifc
1569    o introduced flag for controllin non-hydrostatic metric terms
1570  o removed gravitySign from PARM04  o removed gravitySign from PARM04
1571  o switched to g77/ifc from pgf77 in aim experiments  o switched to g77/ifc from pgf77 in aim experiments
1572    

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