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revision 1.95 by adcroft, Tue Nov 5 19:14:26 2002 UTC revision 1.451 by jmc, Fri Feb 11 20:41:30 2005 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint57d_post
7    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
8    o modify verification/ideal_2D_oce so that it tests the creation of mnc
9      output from the diagnostics package
10    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
11    o make genmake2 more portable by using ".$FS" instead of ".f" for more
12      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
13    o add coordinate variables to the MNC output from the diagnostics package
14    o change MNC-flags default value: true when useMNC=TRUE
15    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
16      the ability (off by default) to read the grid information using MNC
17    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
18    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
19    o do snap-shot diagnostics at the middle of the time-interval (instead of
20      at the end).
21    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
22      new test for AIM with thSIce + slab-ocean
23    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
24    o move state variable diagnostics to the beginning of the time step ;
25      (note: still needs some work specially for snap-shot diagnostics)
26      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
27    
28    checkpoint57c_post
29    o Change testing option (-ieee) to get closer agreement between g77 & ifort
30    o generate new output.txt files on faulks with g77 & the new -ieee option
31    checkpoint57c_pre
32    
33    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
34      update output.txt of exp. global_ocean.90x40x15
35    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
36      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
37    o add saltFlux(+File) forcing capability with periodicExternalForcing
38    o allow to use pkg diagnostics for GM-Redi & ThSIce output
39    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
40    o improvements for the MNC output from DIAGNOSTICS:
41      - correct handling of the unlimitied dimension
42      - all dims now have associated coordinate variables
43      - variables located at U, V, and Corner ("Z") points are now written
44        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
45        *all* data points are output
46    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
47    o added pkg/seaice/seaice_monitor.F
48    o mdsio_readfield.F can now read files visible only to master MPI process.
49    o pkg/seaice: some test code for ice-modified ocean stress
50    o exf_getffields interpolation defaults to bilinear for all scalar forcing
51      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
52      spurious negative numbers for precipitation and humidity.  Will cause
53      some small numerical differences for integrations using pkg/exf/exf_interp.F.
54    o pkg/ctrl/
55      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
56        May be enabled via doPackDiag
57      *  introduce z-scaling of
58         + gradient (doZscalePack) and
59         + control (doZscaleUnpack)
60    o pkg/mdsio/
61      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
62      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
63    
64    checkpoint57b_post
65    o simplify options in diagnostics_fill arguments (remove weird combinations)
66    o fix MNC coordinate variables so that they now contain per-face index
67      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
68      general, EXCH2 grids are only aligned to a "local" coordinate system
69    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
70    o Implement instantaneous output within pkg diagnostics:
71      setting a negative frequency in data.diagnostics produces
72     "snap-shot" output (as opposed to time-average if freq > 0)
73    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
74      NOTE: change ptracer diagnostics name: use 2 characters to work with
75            more than 9 tracers. Add also diagnostics of advect & diffus flux.
76    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
77      becomes the coordinate variable for the 'T' dimension
78    o add CF-style coordinate variables to MNC
79      - just a first cut:  numbers are meaningless on the cubesphere and
80        missing along the T axis but otherwise it works!
81    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
82    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
83    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
84      this is based directly on what the model compute, so that the content of
85      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
86    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
87    o clean up build options files for SunOS, in particular
88      - remove -traditional from xmakedepend
89      - change -xarch=v9 to -xarch=native for f77
90      - restore use of make (not gmake)
91      - add CC=gcc if using g77
92    o changes per discussion of AM, JMC, & EH3 today:
93      - move redundant "grid" variables out of "state" -- in preparation of
94        creating proper CF-style coordinate variables and in recognition
95        that any/all grid variables can be easily copied (eg. w/NCO) from
96        the grid files into any of the other NetCDF files
97      - *always* output grid variables with MDSIO (this will eventually be
98        changed)
99      - output MNC grid file if useMNC is true
100    o every instance of _END_MASTER() has been found and replaced with
101      _END_MASTER( myThid ) in order to satisfy certain picky Sun
102      preprocessors
103    o re-arrange diagnostics pkg initialisation:
104     - allow each package to extend the available diagnostics list
105     - add some checking and fix small problems (multi-threaded, ...)
106     - new S/R diagnostics_fill (replace fill_diagnostics):
107       look through the short list of active diag. (instead of the long list)
108       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
109    
110    checkpoint57a_post
111    o this set of changes restores TAMC compatibility
112      tested for global_ocean.90x40x15 adjoint on trough
113      (what a pain)
114    
115    checkpoint57a_pre
116    o some modifs in tools/build_options for sunos
117    o call ctrl_pack for ctrl at end for optimcycle=0
118    
119    checkpoint57
120    o add horizontal bi-harmonic viscosity for vertical velocity
121      - new parameter viscA4W (defaults to viscA4)
122      - affects only non-hydrostatic code
123      - to be done: no-slip lateral boundary conditions
124    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
125    o implement Implicit Vertical advection for pTracers
126    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
127      (implemented also for implicit vertical diffusion & advection)
128    o OBCS: extend application of tracer open boundary conditions
129      to a strip beyond the boundary of width Olx/Oly
130    o add call monitor to TAF set of required calls (flow directives)
131      and include in natl_box_adjoint
132    o untangle a few ifdefs related to cost, ctrl, autodiff
133      untangel a few ALLOW_ECCO_OPTIMIZATION
134    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
135      (theta2, salt2 in ecco_cost_weights)
136    
137    checkpoint56c_post
138    o OBCS as control variables
139      - update ctrl_ad_diff.list, obcs_ad_diff.list
140      - remove balance of obcs controls from default
141      - fix index bug nobcs in ctrl_init
142      - fix dummy fields filen in ctrl_pack
143      - add dummy weights for obcs
144    o lsopt: comment out fort.94 output
145    o optim:
146      - remove unnecessary header files
147      - adjusted namelists
148      - add xerbla.F to Makefile
149    o exf:
150      - multiple modifications of exf_check_range
151      - unit change in exf_init_runoff from [m/year] to [m/s]
152    o mdsio:
153      - i/o-vector change debugLevel from debLevA to debLevB
154    
155    checkpoint56b_post
156    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
157      is called from DO_THE_MODEL_IO
158      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
159      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
160      - clean up PTRACERS_WRITE_TIMEAVE a little
161    o add another verification experiment that tests both the cfc-pkg and
162      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
163      reactive tendencies treated inline with regular timestepping
164    o testreport previously did a lousy job of comparing small numbers, so
165      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
166      implemented in the little c-progam tmp_cmpnum.c which is embedded in
167      testreport.
168    o ptracers_monitor: bug fix for MPI
169    
170    checkpoint56a_post
171    o GCHEM: finish reorganizating the package
172      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
173        (introduces another 3D-array for each passive tracer, but only if
174        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
175        gchemTendency is not needed because the timestep is done separately)
176      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
177      - GCHEM is now---more or less cleanly---separate from PTRACERS
178      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
179        so clear to me how that should be done in a general way.
180    o CFC: improve formatting of output in CFC_ATMOS
181    o PTRACERS:
182      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
183        that ALL experiments with ptracers enable can be checked. This makes
184        GCHEM_MONITOR obsolete.
185      - include a runtime parameter PTRACERS_monitorFreq that defaults to
186        monitorFreq
187      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
188    o add PTRACERS (PTR0[1-5]) to testreport output
189    o exf_check_range:
190      * default changed to .TRUE.
191      * will check values for niter0 if debLevA, every timestep if debLevB
192      * STOP in exf_check_range if 'out of range'
193      * range chosen generous to allow for potential extema
194      TBD: a version with stricter range
195           permitted range would be runtime parameters
196    o GMredi:
197      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
198      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
199      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
200    o GCHEM:
201      - move call to GCHEM_FORCING_SEP, so that it is now called before
202        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
203      - introduced a useGCHEM runtime flag and applied it everywhere.
204      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
205        this flag is now only visible within GCHEM-pkg routines.
206      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
207        be replaced by a 3D array that is computed before thermodynamics; for
208        this, the tracer ID iTracer had to be included into the parameter list
209        of ptracers_forcing
210      - set up forward_step to call gchem_forcing, that will replace
211        gchem_forcing_int in ptracers_forcing
212      - cleaning up
213    o small cleaning of exch2: remove files that are also in eesupp/src
214    
215    checkpoint56
216    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
217    o mnc: cleanup "full" files--fixes out-of-memory problem
218    o ECCO-GODAE
219      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
220      * fully merged and updated from SIO code
221        windstress sign change affects
222        - exf_inscal_[u/v]stress
223        - sign of xx_tau[u/v] adjustments
224        - signs in cost_scat
225      * ctrl_get_gen: avoid update of tau[u/v] for first few days
226      * natl_box_adjoint updated and compressed
227      * 2-level checkpoint switch added
228        (tested in EXP. 1 of natl_box_adjoint)
229      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
230    o SVD
231      * first complete, non-hacked version for SVD calculations
232      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
233        performed via direct access files admtlm_vector.it????
234        (via ctrl_[un]pack)
235      * optimcycle is used for ARPACK iteration counter
236        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
237      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
238        and add linear transforms where necessary
239      * controls are initial/final SST, SSS (can be extended; need to check
240        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
241    o mdsio: filename info to both stderr, stdout
242    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
243      from sign change
244    
245    checkpoint55j_post
246    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
247      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
248    o add consistent build directories and .cvsignore files to verification
249    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
250    o make all subroutines 30 or less characters in length for certain older
251      compilers to work (a thorough search only turns up two routines in
252      pkg/ptracers)
253    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
254      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
255    
256    checkpoint55i_post
257    o change arrays for total vertical diffusivity (2.D if explicit,
258      3.D if implicit) ; each ptracer uses its own background value.
259    o added mnc/NetCDF output capability to ocn_compon_interf
260      - added bits to verification/cpl_aim+ocn so that it can run on
261        ITRDA and other clusters without the mpirun "-wd" option
262    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
263      configuration
264    o give MNC the ability to create additional files rather than
265      exceeding a specified file size limit "MNC_MAX_FILESIZE"
266      - the default is just less than 2GB which is a practical limit
267        on many systems
268    o Compute the non-local term using either KPP vertical diffusivity (=default)
269       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
270    
271    checkpoint55h_post
272    o add verification test "vermix"
273    o remove all the *_ioinc flags and replace with the single global
274      outputTypesInclusive flag
275    o allow to set a vertical profile of vertical diffusivity for T & S
276    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
277    o useMNC moved from data.mnc to data.pkg
278    
279    checkpoint55g_post
280    o Renaming carbon AD experiments to comply with testreport conventions
281    o Updating adjoint of Held-Suarez hs94.1x64x5
282    o Fixing directives for non-ECCO forward_step, after ECCO directives
283      have been fixed to avoid recomp. of do_oceanic_phys
284      Works well for global_ocean.90x40x15,
285      but recomp. issue remains for carbon
286    o Updating adjoint output for natl_box_adjoint after
287      pkg/ecco has been modified (see taga c55d_post)
288    
289    checkpoint55f_post
290    o rename to timeave_init_fixed
291    
292    checkpoint55e_post
293    o some delicate re-shuffle of store directives to avoid one
294      extra call of do_oceanic_physics
295      affects ecco_the_main_loop.F, do_oceanic_physics.F
296      checkpoint_lev1_directives.h
297    o NB: this may break global_ocean adjoint temporarily,
298      but it is clear how to fix it. Will do later, need this now.
299    
300    checkpoint55d_post
301    o ECCO specific cost function terms (up-to-date with 1x1 runs)
302    o ecco_cost_weights is modified to 1x1 runs
303    o modifs to allow observations to be read in as
304      single file or yearly files
305    o enable to read exf forcing fields as either
306      single file or yearly files (flag useExfYearlyFields)
307    checkpoint55d_pre
308    
309    o switch between 2-level and 3-level checkpointing
310    o add ability of MNC to write local and "partial" (eg. 2D slices where
311      the full 3D field is never actually stored) arrays to NetCDF files
312      with the correct (that is, the complete multi-dimensional) set of
313      array indicies
314      - used in mom_vecinv() to write the diagFreq output
315      - tested (demonstrated) in verification/aim.5l_cs
316    o further mnc-ification
317      - add verification/lab_sea to the list with mnc setups
318      - fix undefined mnc v-names in cd_code
319      - add kpp to mnc output (both snapshot and timeave)
320    o non-hydrostatic code
321      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
322        in calc_gw.F
323      - defaults to viscAh
324      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
325        friction or Leith) in non-hydrostatic mode, as long as there is
326        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
327    o pkg/cost
328      extend simple cost functions to treat time mean quantities
329      (T,U,V) via cost_accumulate_state from cost_tile
330    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
331        be 2 times larger than the minimum size the advection scheme requires.
332        now get a perfect conservation of salt in advect_cs test-exp (updated)
333    o GGL90 (Gaspar's TKE mixed layer)
334      - add horizontal diffusion of TKE, requires exchanges in
335        do_fields_blocking_exchanges, horizontal diffusivity is zero by
336        default. In OPA there is no horizontal diffusion of TKE but the
337        mixing coefficients are computed from a horizontal average of TKE of
338        6 points or so. I think that diffusion has a little more physical
339        justification.
340      - clean up ggl90_calc in the hope of reducing memory usage (this hope
341        was in vain)
342      - mask tke-variable in ggl90_init
343    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
344    o fix biharmonic diffusion on CS-grid.
345    o more obcs stuff
346      - added obcs_external_fields_load as an alternative to the EXF-pkg option
347        for reading boundary values. This routine is called from
348        obcs_prescribe_read
349      - updated obcs_check
350      - changed sponge layer relaxation parameter units for days to seconds
351      - turned off sponge layer by default
352      - changed argument list of OBCS_CALC to myTime+deltaTclock
353      - fixed about 35 bugs in obcs_external_fields_load
354    
355    checkpoint55c_post
356    o obcs stuff
357      - new runtime flags useOBCSprescribe, useOBCSbalance
358      - re-arranged obcs_calc
359      - moved exf_getobcs to obcs_prescibe_read
360        obcs_prescibe_read is called after ORLANSKI stuff
361        and independent of it (executable can contain all).
362      - updated obcs_check
363      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
364        These may be necessary only if tangential velocities are
365        prescribed at OB, not sure, needs testing.
366    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
367      which simplifies the calls and passes the ifc check-bounds test
368    
369    checkpoint55b_post
370    o add a 2D scalar, Z location, exchange_2 routine.
371    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
372      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
373      affects advect_cs results (for the wrong reason): update output.txt
374    o use a more standard discretization for biharmonic viscosity ;
375     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
376      affects results of dome set-up: update output.txt
377    o fix gad_advection.F (CubedSphere part), back to version 1.23
378    o fix bug in mom_vi_del2uv.F (CubedSphere part).
379    
380    checkpoint55a_post
381    o merged code to
382      * prescribe/read time-dependent open boundaries
383        (works in conjunction with exf, cal)
384      * sponge layer code for open boundaries
385      * each boundary N/S/E/W now has its own CPP option
386        (healthy for the adjoint)
387    
388    checkpoint55
389    o up-to-date adjoint of previous breaks
390      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
391      - global_ocean_ebm: adjoint still needs fix (TLM ok)
392      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
393      - carbon: * remove tr1-related adjoint verification
394                * add ptracer as control variable
395    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
396      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
397    
398    checkpoint54f_post
399    o in verification/carbin/ remove experiment related to
400      ALLOW_PASSIVE_TRACER (array tr1 etc)
401      code_ad/ input_ad/ results_ad
402    
403    o add two new packages
404      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
405        + subject to optimization (memory)
406      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
407        + subject to reordering (many GOTOs in the original code)
408        + so far opps is called for every (i,j) point, and then operates in
409          the vertical; one may want to reorder the scheme in order operate in
410          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
411          fields)
412    o overhaul of IO so that we now have flags for MDSIO and/or MNC
413      - all verification tests compile and run with linux_ia32_g77
414      - defaults are compatible with current input files--nothing
415        should change if you were not previously using MNC
416      - MNC output has been added in numerous places (eg. timeave)
417        but there are still a few writes not yet do-able with MNC
418        (this is in progress)
419      - flags now allow for either/or/both use of MDSIO and MNC and
420        documentation will soon follow
421      - numerous small formatting cleanups for ProTeX
422    o add version info (via BUILD_INFO.h) to MNC and stdout
423    
424    checkpoint54e_post
425    o add two new packages
426      - pp81 (Packanowski and Philander, 1981), Richardson number and
427        stratification dependent mixing
428      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
429      - these scheme operate in a similar manner as KPP (without ghat, of
430        course), however there is only one diffusivity that is used for both
431        temperature and salinity (and passive tracers)ç
432    o add offline package
433    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
434      provided by Stephanie Dutkiewicz
435    o genmake2: add ability to search for C compilers and cleanup test output
436      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
437    
438    checkpoint54d_post
439    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
440    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
441      leading to additional shift by 5 days each year of integration
442       (i.e. leading to considerable offset over the years)
443    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
444    o start with no AB and no initial filtering (staggerTimeStep):
445      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
446    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
447      (external loading & cpl import/export stay in forward_step.F)
448    o update coupling interface to work with new staggerTimeStep
449    o change MDSIO ptracers_pickup.
450    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
451    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
452    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
453    
454    checkpoint54c_post
455    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
456      this affects (truncation error) output.txt of test-exp:
457       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
458    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
459    o change Qnet to always be the net heat flux, (+upward).
460      affects (truncation error) output of natl_box exp.: updated
461    o define the max number of passive tracers in PTRACERS_SIZE.h
462    o start to test mnc routinely in exp0
463    o add sea-ice loading (sIceLoad) as a new forcing field.
464    
465    checkpoint54b_post
466    o add testreport "-j JOBS" option for parallel builds (tested and pretty
467       impressive on Altix and Opteron systems)
468    o diagnostics can now write NetCDF files through the mnc package
469    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
470    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
471    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
472      affects (truncation error) output of lab_sea & natl_box exp.: updated
473    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
474    
475    checkpoint54a_post
476    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
477    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
478    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
479    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
480      + internal_wave (shift in writing cg2d_ini_res)
481    checkpoint54a_pre
482    
483    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
484      - modified verification/lab_sea and natl_box_adjoint accordingly
485    
486    checkpoint54
487    checkpoint53g_post
488    o prepare splitting of thermodynamics: store convect.counter in common block
489    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
490      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
491    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
492    o new parameter "nShapS": allow to treat differently S from T (nShapT)
493    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
494    o restore adjointability
495    
496    checkpoint53f_post
497    o modifications that affect AIM experiment results (update output.txt):
498      - no advection of S at top interface Nr (pkg/generic_advdiff)
499      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
500    o AIM pkg:
501      - include stability function into surf.Flux derivative relative to Tsurf
502      - calculate clear-sky radiation & surface temp. change (for diagnostics)
503    
504    checkpoint53e_post
505    o merged cylindrical coord configuration
506    o added rotating_tank experiment
507    checkpoint53e_pre
508    
509    checkpoint53d_post
510    o faulks upgraded: re-generate output.txt that have changed:
511       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
512    o Added Bryan and Lewis, 1979, vertical diffusivity profile
513    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
514    o added Sadourny discretization of Coriolis
515      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
516      - re-enabled use of omega3 (useAbsVorticity)
517    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
518      vector-invariant equations
519      - note: does *NOT* yet use same variable visc. for no-slip BC's.
520    o recoded the lateral boundary conditions for non-hydrostatic w, this time
521      hopefully without new bugs
522      - still to do: biharmonic friction for non-hydrostatic w
523    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
524    o regenerated output for global_ocean_ebm (using -ieee)
525    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
526      of mom_common/
527      - simple re-arrangement of instructions within computing loop
528    checkpoint53d_pre
529    
530    checkpoint53c_post
531    o new version of coupler for AIM+thSIce and Ocean models
532     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
533     - land: change Evaporation of snow
534     - aim with thSIce: fix bug in snow-precip.
535    o changes to calc_gw.F
536     - bug fix for w^2 term near the bottom boundary
537     - (hopefully) improve the lateral slip boundary condtions for use with
538        partial/looped cells
539      - because the bug fix changes two verification experiments anyway (exp5
540        and plume on slope), change the lateral boundary condition from half slip
541        to the value of no_slip_sides
542    o ebm package wasnt quite up to the parallel task. Fixed that.
543    o Adjoint of EBM package + verification
544      * TLM OK
545      * ADM not sufficient accuracy yet (needs further testing)
546    
547    checkpoint53b_post
548    o Commiting new energy balance model to repository
549      * package is pkg/ebm
550      * verif. is verification/global_ocean_ebm
551      * references are in ebm_driver.F
552    C      * X. Wang, P. Stone and J. Marotzke, 1999:
553    C        Global thermohaline circulation. Part I:
554    C        Sensitivity to atmospheric moisture transport.
555    C        J. Climate 12(1), 71-82
556    C      * X. Wang, P. Stone and J. Marotzke, 1999:
557    C        Global thermohaline circulation. Part II:
558    C        Sensitivity with interactive transport.
559    C        J. Climate 12(1), 83-91
560    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
561    C        Destabilization of the thermohaline circulation
562    C        by atmospheric eddy transports.
563    C        J. Climate 7(12), 1870-1882
564    o Will need long integration testing.
565    checkpoint53b_pre
566    
567    o created pkg/mom_common in preparation for variable viscosity code
568    o renamed and split ini_mnc_io
569    o pkg/land: only liquid water can diffuse or run-off
570    o AIM using land: soil wetness availability account for snow
571    o added printMapIncludesZeros to EEPARMS namelist
572    
573    checkpoint53a_post
574    o restore TAMC compatiility for exf_constants.h
575      (no usage of _d in .h)
576    o Additional storing in KPP in an attempt to fix
577      TAMC problem with adjoint of KPP code.
578      (no success...)
579      Identical code works fine with TAF.
580    o Fixed verification/natl_box_adjoint experiments.
581      Initial conditions for Experiments 4 and 5 are now
582      set to "SEAICE_initialHEFF=0", which is more reasonable,
583      and hence gives results closer to that of Experiment 2.
584      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
585    
586    checkpoint53
587    o stable checkpoint with up to date adjoint
588      TLM tests only run for 1st grdchk at the moment. Its unclear if
589      this is a code problem or a problem with resetting code for g_
590      variables that is being autogenerated wrong.
591      Otherwise:
592       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
593       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
594         are both still in chaos following their security messes.
595    
596    checkpoint52n_post
597    o various build (mostly genmake2) changes including:
598      - ability to build/run more easily within Cygwin and MacOS X
599      - more complicated Makefiles with a stronger dependence on Gnu Make
600    o pkg/seaice modifications
601      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
602        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
603        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
604      - changed proxy for geostrophic velocity and updated
605        verification/lab_sea/results/* accordingly
606      - removed ADI dynamic solver from pkg/seaice
607      - replaced all occurrences of 1/CSTICE or 1/CSUICE
608        they caused a segmentation fault under certain circumstances
609      - removed unused field WATR
610    o bug fix in exf-package:
611      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
612         now reflect that.
613    o small fixes in the cal-package:
614      - set reference date to first of January for the 'model'-calendar
615      - failing of cal_CheckDate in cal_FullDate now actually results in a
616        warning
617    o small modifications in exf-package to increase flexibility:
618      - change climtempfreeze from a constant to a runtime parameter that
619        is specified in data.exf_clim (default = -1.9)
620      - introduce runtime parameter windstressmax (default = 2.0) that is
621        specified in data.exf
622    o fix in pkg/thsice:
623      - update Evap (Tsf changes) to be consistent with Latent heat flux
624      - maintain snow precipitation unchanged (even if Tsf >=0).
625     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
626    
627    checkpoint52m_post
628    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
629      this does not change any of the results, because myIter=0 in swfrac always
630      lead to jwtype=2 (the default anyway), but the call makes little sense
631      as a default
632    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
633    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
634      atmospheric model (AIM) to use it ; add a "slab ocean" component.
635    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
636    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
637    o extending useSingleCpuIO option to work with new exch2 I/O format
638      - old-style, missing-tile I/O is still accessible by defining CPP
639        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
640    o monitor package can write to NetCDF files and/or STDOUT
641    o fix re-definition bug in MNC_GRID_INIT_ALL()
642    o doc/api_reference added
643      - a framework for building an API Reference Manual using all
644        the "protex" comments embedded in the code
645      - see pkg/generic_advdiff, pkg/mnc for examples
646    o MNC:
647      - make myThid the last argument for all subroutines
648      - new default for the grid files: NO halos
649      - add useMNC and other run-time flags
650      - separate per-file-group handling of the unlimited dimension
651      - early initialization of MNC w/ flags read at the eeboot stage
652        and lookup tables set in initialize_fixed
653      - write all MNC output to a freshly-created directory
654    o thermodynamics sea-ice (thsice) is now tested with testreport.
655    o test exp. advect_cs: use the standard cs32 grid ; update output.
656    o Added functionality to grdchk:
657      pick global i,j,k position (or nearest wet) where to perform check.
658    
659    checkpoint52l_post
660    o new land formulation:
661      a) use ground enthalpy as prognostic variable to ensure exact
662         energy conservation.
663      b) account for water temperature and for latent heat of freezing
664         in all processes (rain, run-off, ground storage)
665      c) compute surface and ground temperature implicitly.
666    o aim_v23 modification for new land model:
667      a) Treat separately land / ocean / sea-ice surface fluxes
668         to allow implicit computation of land & sea-ice surface temp.
669      b) add snow precipitation.
670    checkpoint52l_pre
671    
672    o fix problem (when 1 tile is empty) in min/max monitor.
673    o fix bug in timeAve (u,vZetatave in common block)
674    o no restoring terms under ice for pkg/seaice
675    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
676    o bug fix for pkg/seaice pickups
677    o change MNC call locations and add coordinate attributes
678    o mask vorticity at the corner ; affects global_ocean.cs output
679    o fix ini_curvilinear_grid ; test CS experiments with mpi
680    o aim.5l_cs: modify sea-ice fraction input file ; update output
681    o exf: Adding simple range check routine for exf fields after read
682    
683    checkpoint52k_post
684    o removed top-level directory "diags"
685      - we migrated these functions to pkg/timeave a long time ago
686    o fixed bug introduced in pkg/monitor
687    o accuracy ctrlprec = 32 insuffient for gradient checks using
688      averaged fields (I/O via cost_averages)
689      -> use ctrl.h in active_file*.F to control I/O precision.
690    o paramter list of CALL ADTHE_MAIN_LOOP
691    o added initial do_the_model_io to ecco
692    o set all ...Freq to zero after cost_final
693      taveFreq, dumpFreq, pChkptFreq
694    o MAIN and ECCO differentiability restored
695    
696    checkpoint52j_post
697    o fix nchklev in tamc.h for global_ocean...
698    o Bringing flow and store directives up-to-date
699    o Really weird thing!
700      call do_the_model_io from the_main_loop with parameters
701      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
702      TAF places a faulty re-call of initialise_varia
703      after cost_final call which should not be there!
704    checkpoint52j_pre
705    
706    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
707      error messages
708    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
709    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
710      debug output
711    o modfied mdsio_writefield.F to handle non-global files under exch2
712    o update AIM Cubed-Sphere exp (aim.5l_cs):
713      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
714    o update AIM Equatorial Channel exp:
715      use standard aim_v23 pkg and change the SST fields to be more realistic.
716    o globalFile now works with exch2
717    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
718      mon_vort3.F to make exch2 friendly with >1 tile per cube face
719    o limit timeave output for hi-res integrations
720    
721    checkpoint52i_post
722    o removed CPP_EEOPTIONS.h from verification/*/code
723    o updated the tiling for global_ocean_pressure
724    checkpoint52i_pre
725    
726    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
727      the old pkg/aim).
728    
729    checkpoint52h_pre
730    o shortened offending lines in exch2_send_rx?.template
731    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
732    o genmake2: add build & execute test for NetCDF code
733    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
734      old grid files, moved CPP_EEMACROS.h to pkg/exch2
735    o added useSingleCPUIO flag to monitor.F and mon_out.F
736    o added temporary hack for sea-ice dynamics on the cube:
737      metric terms are ignored and it is assumed that
738      there is no sea-ice on cube faces 1, 2, 4, and 5.
739    
740    checkpoint52f_post
741    o added exch2 cube routines to pkg/exch2
742    o modified hs94.cs-32x32x5 to use it
743    o added new grid files to hs94.cs-32x32x5
744    checkpoint52f_pre
745    
746    checkpoint52e_post
747    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
748      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
749    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
750      to work with implicit vertical advection and AB ;
751    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
752    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
753     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
754    checkpoint52e_pre
755    
756    o fix bug in impldiff when Nr=1 or Nr=2.
757    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
758    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
759    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
760      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
761    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
762    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
763    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
764    
765    checkpoint52d_post
766    o re-tiled many expts to allow comparison in multi-processor mode
767      - updated output accordingly
768      - changed hs94.128x64x5 to use intial T from file rather than use the
769        random number generator
770    o add infrastructure in model routines for fizhi and gridalt packages
771    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
772    o changes to permit hi-res, cubed-sphere, configuration
773      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
774      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
775      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
776        of surface winds for the cube
777      (A verification experiment, based on global_ocean.cs32x15, but with
778       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
779       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
780       complete with example surface forcing files and matlab scripts to look
781       at the output and compare it with that of global_ocean.cs32x15.)
782    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
783       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
784       to conform to the common rule.
785    o check-in the first version of the coupler + interfaces for multi-components
786       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
787       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
788       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
789       - ocean and atmos. share the same horizontal grid (no interpolation).
790       - exchanges between component and coupler is done in forward_step
791    o new verification experiment, cpl_aim+ocn:
792       coupled ocean - AIM atmosphere on cs32 grid.
793    
794    checkpoint52d_pre
795    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
796    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
797    
798    checkpoint52c_post
799    o Fixing OPTIONS files for use of exf:
800      - ALLOW_ECCO not needed
801      - ECCO_CPPOPTIONS.h should not be included from
802        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
803        as has been the case in the past
804      - All cal/exf related options are currently set in
805        single header file. Should remain so until we
806        agree on a consistent new policy.
807    o Removed all CPP options for cal package.
808      cal has no more CPP options.
809    o modified STOREs in GAD_ADVECTION
810    o corrected key comp. for passkey
811    
812    checkpoint52b_post
813    o new version: "thsice" of thermodynamic sea-ice pkg:
814     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
815     - modify fluxes but do not change theta directly;
816     - light cleaning of bulk_force pkg (still needed with thsice).
817     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
818       + output_thsice.txt to test thsice & bulk_force pkgs.
819    o put back grid & coriolis monitor output.
820    checkpoint52b_pre
821    
822    o call "do_the_model_io" at the beginning (=> dump initial state)
823    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
824    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
825      (need info on NUMBER_OF_PTRACERS)
826    o missing PTRACERS headers in some routines
827    o default tamc.h in pkg/autodiff supposed to crash
828      to ensure proper customization
829    
830    checkpoint52a_post
831    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
832      - moved surfaceTendencyTice from pkg/seaice to main code
833      - subroutine FREEZE_SURFACE now limits only surface temperature
834        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
835        => new output.txt for global_ocean.cs32x15 & global_with_exf
836      - keep the old version of FREEZE for backward compatibility;
837        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
838      - corresponding modifs for TAF directives
839    o added surface flux output variables to TIMEAVE_STATVARS
840    o time-averaged output for pkg/ptracers
841    o fix problem with ECCO-related divided adjoint
842      snapshot file was missing some ad-variables,
843      but no warning issued by TAF
844    
845    checkpoint52a_pre
846    o some bug fixes for #undef REAL4_IS_SLOW
847    
848    checkpoint52 = ecco_c52_e35
849    o after testing adjoints of checkpoint51u_post
850    
851    checkpoint51u_post
852    o this is the post-merge tag of the ecco-branch
853      (needs another clean checkout and re-testing)
854    o various natl_box_adjoint configs and results
855      but no input fields
856    o obcs adjoint not yet merged!
857    o adding ECCO global 1x1 and 2x2 degree configs
858    o updated/extended some store directives for seaice
859    o pkg/ecco now containes ecco-specific part of cost function
860    o top level routines the_main_loop, forward_step
861      supersede those in model/src/
862      previous input data.cost now in data.ecco
863      (new namelist ecco_cost_nml)
864    o in ctrl/ cleaned some cross-dependencies and updated CPP options
865    
866    checkpoint51t_post
867    o this is the pre-merge tag of the ecco-branch
868    
869    checkpoint51s_post
870    o cleanup: removed various obsolete #define-s
871    o pkg/grdchk
872      - renamed 'ph-grd 3' to 'grad-res'
873      - merged from ecco-branch
874        (remaining bug fixes for obcs gradient checks)
875      - additional high-precision output for testreport
876        (grep for 'precision_grdchk_result')
877    
878    checkpoint51r_post
879    o cleaned up or removed CPP_OPTIONS.h files
880    o updated results for some of the tests to reflect the new
881      optfiles (-ieee: -O0 instead of -O3)
882    
883    checkpoint51q_post
884    o cd_code:
885      - moved cd_scheme.F -> cd_code_scheme.F
886      - separate read_checkpoint from cd_code_ini_vars.F
887      - separated cd_code part from write_checkpoint
888      - updated AD_SOURCE, generated .flow
889      - added CD_CODE_VARS.h to the_main_loop
890      - Moving cd_code specific store dir.s to pkg/cd_code
891    o ctrl package totally restructured
892      - pack/unpack now optional and decoupled from
893        xx_/adxx_ I/O
894      - ctrl_pack/unpack cleaned
895        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
896      - confined inclusion of AD_CONFIG.h to where necessary.
897    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
898    
899    checkpoint51p_post
900    o create initial cd_code package
901      - WARNING: the initialization of fields within packages
902        is broken because INI_FIELDS (where READ_CHECKPOINT is
903        called) is called *before* PACKAGES_INIT_VARIABLES.
904        This seems to be backwards since
905        1) its important to initially zero the entire field including
906           the "halo" region
907        2) zeroing needs to be done *before* reading pickup info
908           and the pickup call might or might not happen in any
909           particular run
910      - this needs an overhaul for R2
911    o cleanup verification/*/code/GMREDI_OPTIONS.h
912    o cleanup testreport
913    
914    checkpoint51o_post
915    o bringing AD-related verif's up to date with genmake2
916      - carbon/
917      - global_ocean.90x40x15/
918      - hs.94.1x64x5/
919      - (front_relax/ )
920    o (more) consistent directory structure for AD-related verif.'s
921    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
922    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
923    o bug fix in find_alpha.F for MDJWF:
924      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
925        change rho -> rho-rhoConst
926      - replace call find_rho to find_rhonum
927    o initialisation of rFlx extended to full array (required by TAF)
928      and shifted to thermodynamics
929    o removed PTRACERS.h in ptracers routine
930    o added surfacetendencyPtr to S/R parameter list pracers_forcing
931    o Correcting initialisations for fVerU, fVerV.
932    o helping TAF to recognize dependency on kUp for
933      fVerU, fVerV
934    o Replacing delZ by delR in pkg/ctrl/
935    checkpoint51o_pre
936    
937    o undid all of cp51 pending some cleanups and discussion
938    o added the [#include "AD_CONFIG.h"] statement to all files that need
939       it for adjoint/tl #defines
940     o re-worked the build logic in genmake2 to support AD_CONFIG.h
941     o removed tools/genmake since it no longer works
942    
943    checkpoint51n_post
944    o modifications to make FREEZE flux visible to pkg/kpp
945      - moved surfaceTendencyTice from pkg/seaice to main code
946      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
947      - subroutine FREEZE now limits only surface temperature
948        (this means new output.txt for global_ocean.90x40x15,
949         global_ocean.cs32x15, and global_with_exf)
950    o added surface flux output variables to TIMEAVE_STATVARS
951    
952    checkpoint51n_pre
953    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
954    o added [#include "AD_CONFIG.h"] to all files that use the following
955      defines:
956      - ALLOW_ADJOINT_RUN
957      - ALLOW_TANGENTLINEAR_RUN
958      - ALLOW_ECCO_OPTIMIZATION
959    
960    checkpoint51m_post
961    o incorporating changes to get TAMC/TAF working in genmake2
962      - added new TAMC/TAF targets to the Makefile
963      - various cleanups related to package handling
964      - these changes should have no impact on the forward model
965    
966    checkpoint51l_post
967    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
968     - faster algorithm for cal_addtime.F
969     - higher precision arithmetic, where needed
970     - pkg/exf *startdate variables changed from calendar date to
971       model integration time
972    
973    checkpoint51l_pre
974    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
975    o enable to apply restoring on S & T only in a latitude band.
976    o update output (external_forcing_surf modif. change truncation errors)
977       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
978    
979    checkpoint51k_post
980    o change default to: useNHMTerms=.FALSE.
981     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
982       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
983     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
984        exp1, ideal_2D_oce
985     - change data file of oceanic exp (leave the results unchanged for now)
986       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
987    o set gravitySign automatically according to the vertical coordinate used
988      (and change sign: back to "logical" value: +1 when R increases downward)
989    o added an include barrier to the default CPP_OPTIONS.h and
990      removed the #include "PACKAGES_CONFIG.h" from it
991    o fix a bug in mom_fluxform (from chk51j_post)
992    
993    checkpoint51j_post
994    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
995    o adjusted some flow directives (dynamics, thermodynamics)
996    o added cubed-sphere case to test cost function
997    o heckpoint_lev?_directives.h now include
998      pkg-specific directives, whenever those are enabled.
999    o Moving pkg-specific flow directives to corresponding pkg
1000      Moving pkg-specific differentiation list to corresponding pkg
1001      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1002      ---> conventions are
1003           - pkg_ad.flow
1004           - pkg_ad_diff.list
1005           - pkg_ad_check_lev?_dir.h
1006    
1007    checkpoint51i_post
1008    o merge of the branch-genmake2
1009      - knowingly breaks the older genmake
1010      - automatic generation of all ALLOW_${PKG_NAME} defines
1011      - new testreport supersedes older testscript
1012    o large number of package inclusion and header cleanups
1013    checkpoint51i_pre
1014    
1015    o new output for adjoin of global ocean vector invariant
1016    o fix for checkpoint of thermodynamic seaice and bulk_force
1017    o Steph gchem various cleanups
1018    
1019    checkpoint 51h_pre
1020    o fixed some single quotes
1021    o modify gchem pkg to be more versatile
1022    o modifications to clean up dic pkg
1023    o add pkg/cfc
1024    
1025    checkpoint51g_post
1026    o provide links for ARPACK and ADM*TLM
1027    o start removing verification/vero/
1028    o update AD-related stuff
1029      (in particular some IF-statements in model/src/ routines)
1030    o adding to verification/global_ocean.90x40x15/ adjoint of
1031      vector invariant setup
1032    
1033    checkpoint51f_post
1034    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1035    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1036      of tracer Green's fucntions for ocean inversion project.
1037    
1038    checkpoint51f_pre
1039    o Added on-the-fly spatial interpolation capability
1040        "USE_EXF_INTERPOLATION" to pkg/exf.
1041      - This is a temporary Cartesian-grid hack until
1042        the super-duper ESMF coupler becomes available.
1043      - See verification/global_with_exf/README for usage example.
1044      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1045        flags and modified pkg/seaice accordingly.
1046    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1047        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1048        non-local transport term.
1049    
1050    checkpoint51e_post
1051    o pkg/mom_vecinv:
1052      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1053      - add time-ave diagnostic of vorticity advection.
1054    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1055    o atmospheric geopotential: - include water vapor effect;
1056                                - use p^kappa in p* scaling.
1057    o land pkg: read initial state from files.
1058    o AIM : add stratospheric drag in the upper level
1059    
1060    checkpoint51d_post
1061    o change function ILNBLNK (=> last non-blank char.) to return zero
1062      (instead of the string length) when the string. char is empty
1063    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1064    o modif's to restore TAMC compatibility
1065      - avoid "_d" constructs in PARAMETER declarations
1066      - avoid interrupting lines by comment lines
1067    o Use cluster local disks for purely local I/O
1068      vs. globally visible disks needed for ctrl stuff
1069      (merged from ecco-branch)
1070      - new active_file_loc... and mdsio_..._loc routines
1071      - affected packages: autodiff, ctrl, grdchk, mdsio
1072    
1073    checkpoint51c_post
1074    o introducing integer flag debugLevel
1075      - debLevZero: suppress all output
1076      - debLevA: standard
1077      - debLevB: equivalent to current debugMode=.TRUE.
1078    o introducing pathname variable mdsioLocalDir for mdsio
1079      that can be specified at runtime
1080      (relevant for cluster I/O to local disk)
1081    `
1082    >>>checkpoint51b_post
1083    adjoint of ptracers
1084    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1085    o extended state in checkpoint_lev?, etc.
1086    o alternative ctrl/cost with tr1 or ptracer
1087    o new comlev1_bibj_ptracers
1088    o new ptracers.flow
1089    o made ptracers_forcing same as external_forcing_s
1090    o added verification for adjoint with ptracers
1091      - adm. grdchk fail so far
1092      - tlm. grdchk OK
1093      - checked tapelev/comlev recomputations: OK
1094    <<<checkpoint51b_pre
1095    
1096    checkpoint51a_post
1097    o added code for biogeochemistry package
1098      - new pkgs: dic, gchem
1099      - new subroutine in ptracers
1100    o modify code for biogeo packages
1101      - in model/src and pkg/ptracers
1102    
1103    checkpoint51
1104    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1105      - autodiff, ctrl, exf, grdchk, seaice
1106      kept separate packages
1107      - cost, ecco, obcs
1108    o updating verification/internal_wave, verification/lab_sea
1109      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1110    
1111    checkpoint50i_post
1112    o Preparing next differentiable checkpoint and sync
1113      of MAIN vs. ecco-branch
1114      - 1st step: this one is differentiable
1115      - 2nd step: next(! not this) checkpoint will have updated packages
1116                  from ecco-branch)
1117    
1118    checkpoint50h_post
1119    o new package "land": provide surface BC for AIM.
1120    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1121    o AIM: use true log-P extrapolation for near surface temp (= as in
1122        F.Molteni paper) ; update aim.5l_cs output.
1123    o New variable in PARM03 for more flexible pickups
1124    o somewhat cleaned package initialisation sequence for
1125      ctrl/ cost/ ecco/ in packages_... routines
1126    
1127    checkpoint50g_post
1128    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1129      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1130      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1131        made the default because of faster convergence than ADI
1132    
1133    checkpoint50f_post
1134    o exf totally restructured
1135      - replaced all exf_set_ routines by one generic exf_set_gen.F
1136        and made sure it's still differentiable
1137      - split exf_getffields.F into new exf_bulkformulae.F
1138      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1139      - updated adjoint/makefile and relevant verif. accordingly
1140    
1141    checkpoint50f_pre
1142     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1143          + change Evap over land. (update aim.5l_cs output)
1144     o added missing .cvsignores and made uniform across expts
1145     o changed configuration of tidal_basin_2d expt
1146     o added pkg/debug functions for tracing code in fatal crashes
1147     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1148     o new fn in pkg/monitor to stop model if solution grows too big
1149     o removed lots of single quotes from comments
1150    
1151    checkpoint50e_post
1152    o make KPP work with PTRACERS
1153     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1154       nearly a copy of kpp_transport_s
1155     - there is no analogue to SurfaceTendencyS, so I have to use
1156       gPtr(of the surface layer) instead
1157    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1158    checkpoint50e_pre
1159    
1160    checkpoint50d_post
1161    o change kpp output from multiple-record state files to single-record state
1162      files analogous to write_state.F
1163    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1164      analogous to the cg2d-related output.
1165    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1166      so that writing to internal file fn (with length 512) fails.
1167    checkpoint50d_pre
1168    
1169    checkpoint50c_post
1170    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1171    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1172    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1173    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1174    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1175    
1176    checkpoint50c_pre
1177    Merging from release1_p13:
1178    o bug fix for pkg/seaice dynamic solver
1179    o Added SEAICE_initialHEFF to pkg/seaice
1180    
1181    checkpoint50b_post
1182    o store u*,v* in gU,V instead of in guNm1,gvNm1
1183    o in order to put the momForcing out of the Adams-Bashforth:
1184      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1185      to timestep.F
1186    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1187    o re-generate output for highly sensitive test-exp:
1188       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1189    
1190    checkpoint50b_pre
1191    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1192    o corrected CPP option mismatch in exf_Bulk... functions for case
1193      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1194    
1195    checkpoint50a_post
1196    o Bug fix for merging between c50 and KPP.
1197      ikey was passed from thermodynamics to kpp_calc via
1198      common block rather than being recomputed in kpp_calc,
1199      in contradiction with new key itdkey.
1200      New key ikppkey created, and tamc.h headers updated.
1201    
1202    checkpoint50
1203    - 2nd step of merge with ecco-branch:
1204      merge changes in ecco-branch back into main trunk
1205    - bug fix in find_alpha
1206    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1207    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1208    - merged some sliced AD support routines
1209    
1210    checkpoint49
1211    merged from ecco-branch:
1212    o exf:
1213      - Enable initialisation of forcing fields to constant
1214        (runtime) values.
1215      - in exf_getffields.F
1216        Reduce i-/j-loop to interior domain, discarding overlaps.
1217        That also fixes wrong TAF-key computations for key_1, key_2
1218        with bulf formulae.
1219      - exf_init.F modify #ifdef for exf_init_evap
1220      - exf_getffieldrec.F, ctrl_getrec.F
1221        The following INT-usages are not safe:
1222          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1223          fldcount = int(fldsecs/fldperiod) + 1
1224        and were modified.
1225    o autodiff: checkpoint_lev...
1226      - updated storing for bulk formulae (some arrays were missing)
1227      - added state for seaice package
1228      - synchronized with main branch
1229    o DIVA:
1230      Modif.s in
1231      - the_main_loop.F
1232      - the_model_main.F
1233      and added cost_final_restore.F cost_final_store.F
1234      o With these changes, it is possible to fully separate
1235        the first forward run to compute the cost function (mdthe_main_loop)
1236        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1237        into separate model executions.
1238        This enables better tuning of DIVA to given queue sizes.
1239      o Loss of cost function value in consecutive DIVA runs is
1240        fixed by storing to 'costfinal' file.
1241      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1242        beginning/end of adjoint integration is accounted for.
1243      The current changes apply to TAF-1.4.26.
1244      TAF has one remaining bug, requiring one manual change
1245      (see MITgcm manual).
1246    o cal: synchronized between MAIN and ecco-branch
1247    
1248    checkpoint48i_post
1249    o Changes to restore differentiability of code w.r.t. previous tag
1250      (mostly adding new routines to make list and replacing
1251      pressure by totPhiHyd).
1252    o Updated and merged grdchk package
1253      - has both ADM and TLM checks
1254      - works for single- and multi-proc.
1255      - output cleaned
1256      - worked successfully for parallel DIVA
1257    o genmake:
1258      - Adding -platform=SP4
1259      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1260    o Modif. for DIVA:
1261      ctrl_unpack should not be called in intermediate DIVA interval.
1262      (similar thing would apply for active files such as
1263      tbar, sbar, psbar, which should not be reinitialised;
1264      only relevant for ecco-branch)
1265    
1266    checkpoint48h_post
1267    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1268    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1269    o Added SEAICE_initialHEFF to pkg/seaice
1270    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1271    
1272    checkpoint48g_post
1273    --- EOS:
1274    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1275      store total Potential in totPhyHyd for diagnostics & EOS.
1276    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1277    --- Pressure/geopotential gradient:
1278    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1279    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1280      ( changes results of global_ocean_pressure )
1281    o NLFS + z-coord.: add eta*Rho' contribution.
1282    o accurate phiHyd when using interface-W at the middle between 2 centers
1283     ( changes results of ideal_2D_oce )
1284    o includes r* 2nd term in potential gradient.
1285    
1286    checkpoint48f_post
1287    Merging from release1_p12:
1288    o Modifications for using pkg/exf with pkg/seaice
1289      - improved description of the various forcing configurations
1290      - added basic radiation bulk formulae to pkg/exf
1291      - units/sign fix for evap computation in exf_getffields.F
1292      - updated verification/global_with_exf/results/output.txt
1293    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1294      (SBO) core products, including oceanic mass, center-of-mass,
1295      angular, and bottom pressure (see pkg/sbo/README.sbo).
1296    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1297      to avoid negative values in shallow regions.
1298      - updated verification/natl_box/results/output.txt
1299      - updated verification/lab_sea/results/output.txt
1300    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1301    o Added useSingleCpuIO option (see PARAMS.h).
1302    o Updated useSingleCpuIO option in mdsio_writefield.F to
1303      work with multi-field files, e.g., for single-file pickup.
1304    o pkg/seaice:
1305      - bug fix in growth.F: QNET for no shortwave case
1306      - added HeffFile for specifying initial sea-ice thickness
1307      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1308    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1309      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1310    o pkg/seaice:
1311      - adjoint-friendly modifications
1312      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1313    
1314    checkpoint48e_post
1315    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1316    o dynamics: change definition of computational domain & adapt mom_fluxform
1317      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1318    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1319        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1320        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1321        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1322        inverted_barometer solid-body.cs-32x32x1
1323      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1324    
1325    checkpoint48d_post
1326    o in preparation for r*:
1327     a) use pre-computed gradient of hydrostatic potential:
1328        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1329     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1330        => affects results of glob_oce_pressure (different truncation error)  
1331      update output.txt of ideal_2D_oce & global_ocean_pressure
1332    
1333    checkpoint48d_pre
1334    o in preparation for r*:
1335      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1336      pass the 2 comp. of the grad. as arguments to momentum S/R.
1337      but for the moment, only used if it does not change the results.
1338    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1339    
1340    checkpoint48c_post
1341    Modifications in treatment of initial flux forcing controls
1342    to avoid extra storing of flux fields.
1343    
1344    checkpoint48c_pre
1345    o Added tidal_basin_2d experiment (currently 1D!)
1346    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1347    
1348    checkpoint48b_post
1349    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1350     (modification to pressure gradient not yet implemented)
1351    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1352      (for U & V) that are used for vertical advection of momentum.
1353    
1354    checkpoint48a_post
1355    o In preparation for r*, use temp. array to compute vertical transport
1356       in flux-form momentum pkg. => change results of few test-exp.
1357      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1358                        lab_sea, natl_box & plume_on_slope
1359    
1360    checkpoint48
1361    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1362    
1363    checkpoint47j_post
1364    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1365    o moved adexch from forward_step to addummy_in_stepping
1366    o added exch in ctrl_map_...
1367    o aveFreq.=0. at end of cost_final to avoid overwrite in
1368      reverse checkpointing loop
1369    o Yet more changes in gmredi:
1370      * adgmredi_calc_tensor
1371        avoiding all recomputation of gmredi_slope_limit
1372      * adgmredi_x/y/rtransport
1373        added flag for excessive storing to avoid recomp. of
1374        u/v/rtans, dTdx/y/z
1375        -> this is not really necessary and very memory-consuming
1376      * adgmredi_slope_psi:
1377        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1378      * gmredi_slope_limit
1379        re-activated full calculation of taperfct for case 'ac02'
1380    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1381    
1382    checkpoint47i_post
1383    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1384    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1385      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1386    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1387    o gmredi: fix few bugs.
1388    
1389    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1390    This will be a good checkpoint to plug into the ecco-branch.
1391    o few modif.'s to get latest version adjointed
1392      (mainly kick out code in ini_linear_phisurf)
1393    o modif's to run adjoint with exactConserv
1394    o case GM_BOLUS_ADVEC should be cleaned
1395      S/R gmredi_slope_psi should be cleaned
1396    o verification/carbon now has exactConserv=.TRUE.
1397    
1398    checkpoint47g_post
1399    o time-average AIM output: becomes independent from statvars time-average
1400      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1401    o After TAF bug fix:
1402      Tested adjoint of gmredi package.
1403      Tests were done with checkpoint47 rather than with latest
1404      checkpoint47f_post since the latter is broken for the adjoint
1405      verification/carbon/ contains both ADM and TLM gradient checks.
1406    Here they are, before they get changed/lost/stolen.
1407    Mostly modif.'s to fix numerical sensitivities.
1408    Gradient checks OK for
1409    - GM_taper_scheme:
1410      * clipping
1411      * ac02
1412      * linear
1413      * glw91
1414      * dm95
1415      * ldd97
1416    - GMREDI_OPTIONS:
1417      * GM_VISBECK_VARIABLE_K
1418      * GM_NON_UNITY_DIAGONAL
1419      * GM_EXTRA_DIAGONAL
1420      * GM_BOLUS_ADVEC
1421    in conjunction with data.gmredi parameters to be checked in
1422    in a few minutes under verification/carbon/code/
1423    
1424    checkpoint47f_post
1425    Merging from release1_p10:
1426    o modifications for using pkg/exf with pkg/seaice
1427      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1428        and SEAICE_EXTERNAL_FLUXES
1429      - pkg/exf CPP options EXF_READ_EVAP and
1430        EXF_NO_BULK_COMPUTATIONS
1431      - usage examples are Experiments 8 and 9 in
1432        verification/lab_sea/README
1433      - verification/lab_sea default experiment now uses
1434        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1435    
1436    checkpoint47e_post
1437    o created a tag prior to creating a branch
1438    
1439    checkpoint47d_post
1440    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1441      at the bottom boundary had an erroneous half slip boundary condition
1442    o added bottom drag and no slip boundary condition capabilities to
1443      oceanic pressure coordinates code
1444    o added new verification experiment global_ocean_pressure, this experiment is
1445      also described in the tutorial section of the manual
1446    checkpoint47d_pre
1447    
1448    checkpoint47c_post
1449    o Added a verification experiment for a global cubed-sphere ocean run
1450      -  verification/global_ocean.cubed32x32x30
1451      -  uses pkg/therm_seaice and pkg/bulk_forcing
1452    
1453    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1454    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1455      when using P-coordinate; only implemented for atmospheric config.
1456    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1457      NOTES: requires option NONLIN_FRSURF to be "#define".
1458    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1459    
1460    checkpoint47b_post
1461    Merging from release1_p9:
1462    o pkg/seaice
1463      - removed GOTO's and added taf directives
1464      - double precision constants to reduce the g77 (Linux)
1465        to F77 (SGI) differences reported in release1_p8
1466    o tools/genmake
1467      - added SGI options
1468    o verification/testscript
1469      - updated to that of checkpoint47a_post
1470    o verification/global_ocean.90x40x15/input/eedata
1471      - modified for SGI f77 compatibility
1472    o verification/lab_sea
1473      - added description of sea-ice model
1474      - added missing matlab routines
1475      - added test of thermodynamics parallelization
1476    
1477    checkpoint47a_post
1478    o new pkg: aim_v23
1479     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1480       for now, keep the same surface forcing as before.
1481     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1482     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1483     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1484    o add diagnostic of surface correction term in monitor output
1485    
1486    o bulk_force and therm_seaice
1487    - Two packages:  bulk_force (Bulk forcing)
1488      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1489    - Earlier integration from Stephaine Dutkiewicz
1490      and Patrick Heimbach.
1491    - Two ifdef statements for compile time,
1492       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1493    
1494    checkpoint47
1495    differentiable version of checkpoint46n_post
1496    o bug fix in quasihydrostaticterms
1497    o * "clean" adjoint code (in terms of extensive recomputations)
1498        can now be obtained for all GMREDI options (i.e. for
1499        - GM_VISBECK_VARIABLE_K
1500        - GM_NON_UNITY_DIAGONAL
1501        - GM_EXTRA_DIAGONAL
1502        - GM_BOLUS_ADVEC )
1503      * However, wrong gradient check problem remains unsolved.
1504      * New CPP options have been introduced for different
1505        tapering schemes
1506    o external_fields_load now part of differentiation list
1507    o pressure needs multiple storing;
1508      would be nice to have store_pressure at beginning or
1509      end of forward_step, e.g. by having phiHyd global (5-dim.)
1510      (NB: pressure is needed for certain cases in find_rho,
1511      which is also invoked through convective_adjustment).
1512    o recomputations in find_rho for cases
1513     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1514    o #define ATMOSPHERIC_LOADING should be differentiable
1515    o ini_forcing shifted to begining of initialise_varia
1516    o Incorporating QNVS line search routines into MITgcm
1517      (this is separate code, and therefore not under pkg)
1518      lsopt/, optim/
1519    o Updated verification/carbon/
1520      - #define GM_VISBECK_VARIABLE_K
1521      - GM_taper_scheme    = 'ldd97'    
1522    
1523    checkpoint46n_post
1524    Merging from release1_p8:
1525    o verification/natl_box:
1526      updating new external_fields_load routine
1527    o New package: pkg/seaice
1528      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1529      The sea-ice code is based on Hibler (1979-1980).
1530      Two sea-ice dynamic solvers, ADI and LSR, are included.
1531      In addition to computing prognostic sea-ice variables and diagnosing
1532      the forcing/external data fields that drive the ocean model,
1533      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1534      The implied surface heat flux is then stored in variable
1535      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1536      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1537      non-local transport term.  Because this call precedes model
1538      thermodynamics, temperature under sea-ice may not be "exactly" at
1539      the freezing point by the time theta is dumped or time-averaged.
1540      N.B.: fairly large differences in accuracy occur across
1541            different platforms/compilers; comparison between
1542            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1543            generated output gives:
1544       T           S           U           V
1545      C D M    c        m  s        m  s        m  s        m  s
1546      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1547      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1548      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1549    
1550      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1551    o GAD:
1552      - generated new common blocks to account for call of
1553        same gad routines with differing traceridentities
1554        (needed to modify tracerIdentity indices in GAD.h)
1555      - generated separate common blocks for case useCubedSphereExchange
1556        (Department of Futurology)
1557      - parameter lists to gmredi_?transport: added tracerIdentity
1558      - added new key indices to tamc.h
1559    o external_fields_load:
1560      - added this routine to TAF list
1561      - needed to make some common blocks global and additional storing
1562        along the same lines as exf package (checkpoint_lev?_directives.h)
1563    o exf:
1564      updated external forcing package
1565      - bug fixes carried over from ecco-branch
1566        (missing OBCS_OPTIONS.h in two routines)
1567      - enable easy to use "no forcing".
1568      - added exf I/O for atmospheric loading
1569      - added exf I/O for runoff data
1570      - transfered scaling between exf <-> MITgcm to exf namelist
1571    o Adding new verification experiment global_with_exf.
1572      This verification experiment is almost identical to the
1573      global_ocean.90x40x15 experiment, except that it uses
1574      the exf (and cal) package instead of the
1575      external_fields_load routine (cf README file).
1576    
1577    checkpoint46m_post
1578    o modified testscript to return -- when there are no lines of "%MON" output
1579    o added new flag "quasiHydrostatic" for QH mode
1580      and new routine quasihydrostaticterms()
1581    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1582      New routine: mom_u_coriolis_nh()
1583    o fixed sign of non-hydrostatic metric terms in u and v equations.
1584      Depend on correct sign of gravitySign.
1585    o added work.pc* to .cvsignore in aim directories using ifc
1586    o introduced flag for controllin non-hydrostatic metric terms
1587  o removed gravitySign from PARM04  o removed gravitySign from PARM04
1588  o switched to g77/ifc from pgf77 in aim experiments  o switched to g77/ifc from pgf77 in aim experiments
1589    

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