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revision 1.268 by jmc, Fri Mar 12 20:57:21 2004 UTC revision 1.498 by jmc, Sun Jun 19 19:43:16 2005 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint57i_post
8    o Diagnostics package was changed: diagnostic allocation is now deactivated
9      by setting an empty file name in the namelist (used to be by setting 0 frequency)
10    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
11      add 1rst Order upwind vertical Shear.
12    o add a quick fix for A/B checkpointing in OFFLINE mode
13    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
14      end-run around the C/Fortran linking horror in eesup/src/timers.F
15    o added pkg/runclock: allows user to terminate run based on wall clock
16    o added non-hydrostatic scaling parameter: nh_am2
17    o pkg/my82: futile attempt to make results compiler-independent by adding
18      some "_d 0", etc. no effect.
19    o for mnc output, fill the 'T' coordinate var with myTime and create a
20      separate 'iter' variable for iteration count
21    o pkg/diagnostics:
22      add new capability: output of Global/Regional & per-level statistics ;
23      tested against monitor output (including land & thSIce) on various exp.
24    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
25    
26    checkpoint57h_done
27      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
28      data.diagnostics, data.gchem, data.ptracers) is done.
29    
30    o pkg/diagnostics: prepare for Global/Regional statistics.
31      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
32    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
33      and rename it: DIFFERENT_MULTIPLE
34    
35    checkpoint57h_post
36    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
37    o pkg/diagnostics: change output frequency, now in seconds (instead
38      of Nb of iterations). This requires to change data.diagnostics.
39    checkpoint57h_pre
40    
41    o in mnc, let the user create the output dir if both mnc_outdir_date
42      and mnc_outdir_num are false
43    o add fflags() to pkg/diagnostics which allows one to specify, on a
44      per-file basis, the file precision [default behavior is unchanged]
45    o added diagnostics to pkg/kpp, including computation of mixed layer
46      depth based on a temperature/density criterion
47    o updated verification/natl_box to test the new pkg/kpp diagnostics
48    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
49    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
50    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
51      not mnc -- this mistake was found by JMC and is now corrected
52    
53    checkpoint57g_post
54    o add Adams-Bashforth 3rd Order time stepping:
55      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
56      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
57    checkpoint57g_pre
58    
59    o make lambda[Theta,Salt]ClimRelax spatially varying
60      (default remains spatially uniform constant based on tau)
61    o added new control variables
62      * init. uVel, vVel, etanN
63      * lambda[Theta,Salt]ClimRelax
64    o separate masks used for ctrl_pack/unpack 'from write_grid' output
65      (suggested by G. Forget)
66    
67    checkpoint57f_post
68    o add parameter "baseTime" = model base time = time at iteration zero
69      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
70      account for baseTime shift
71    o move Coriolis arrays from PARAMS.h to GRID.h
72    checkpoint57f_pre
73    
74    o mnc-ifying the seaice package
75    o introduced an alternative length scale calculation for use in the limiting
76      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
77    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
78    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
79      as well as grad(vort3).  Made it compatible with both approximate form
80      for the cubed sphere and full form of these gradients.  Added flag
81      useFullLeith to select between approximate and full form.  
82    o add "d0" in getcon.F to reduce differences between compilers/platforms
83      update output.txt of exp. fizhi-gridalt-hs
84    o change port_rand funtion to allow to set the seed.
85    o fix obscure MNC bug involving conversion between reals and integers
86      - it caused no problems with certain (eg. gcc, ifc) compilers but the
87        new version is now more standards-compliant
88    o adjoint-related modifications
89      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
90      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
91      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
92    
93    checkpoint57e_post
94    o Adding eddy stress controls a la Ferreira et al.
95    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
96    
97    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
98      update output.txt of exp. fizhi-gridalt-hs
99    o add more "Z" dimensions and associated coordinate vars to MNC
100    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
101    o parameter calendarDumps: when set, approximate months (30-31 days) and years
102      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
103      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
104      months and years.  Requires pkg/cal.
105    o diagnostics: add pickup functionality
106      - off by default for backwards compatibility
107      - current version only uses MDSIO -- MNC will be added
108    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
109    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
110    
111    checkpoint57d_post
112    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
113    o modify verification/ideal_2D_oce so that it tests the creation of mnc
114      output from the diagnostics package
115    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
116    o make genmake2 more portable by using ".$FS" instead of ".f" for more
117      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
118    o add coordinate variables to the MNC output from the diagnostics package
119    o change MNC-flags default value: true when useMNC=TRUE
120    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
121      the ability (off by default) to read the grid information using MNC
122    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
123    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
124    o do snap-shot diagnostics at the middle of the time-interval (instead of
125      at the end).
126    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
127      new test for AIM with thSIce + slab-ocean
128    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
129    o move state variable diagnostics to the beginning of the time step ;
130      (note: still needs some work specially for snap-shot diagnostics)
131      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
132    
133    checkpoint57c_post
134    o Change testing option (-ieee) to get closer agreement between g77 & ifort
135    o generate new output.txt files on faulks with g77 & the new -ieee option
136    checkpoint57c_pre
137    
138    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
139      update output.txt of exp. global_ocean.90x40x15
140    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
141      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
142    o add saltFlux(+File) forcing capability with periodicExternalForcing
143    o allow to use pkg diagnostics for GM-Redi & ThSIce output
144    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
145    o improvements for the MNC output from DIAGNOSTICS:
146      - correct handling of the unlimitied dimension
147      - all dims now have associated coordinate variables
148      - variables located at U, V, and Corner ("Z") points are now written
149        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
150        *all* data points are output
151    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
152    o added pkg/seaice/seaice_monitor.F
153    o mdsio_readfield.F can now read files visible only to master MPI process.
154    o pkg/seaice: some test code for ice-modified ocean stress
155    o exf_getffields interpolation defaults to bilinear for all scalar forcing
156      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
157      spurious negative numbers for precipitation and humidity.  Will cause
158      some small numerical differences for integrations using pkg/exf/exf_interp.F.
159    o pkg/ctrl/
160      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
161        May be enabled via doPackDiag
162      *  introduce z-scaling of
163         + gradient (doZscalePack) and
164         + control (doZscaleUnpack)
165    o pkg/mdsio/
166      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
167      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
168    
169    checkpoint57b_post
170    o simplify options in diagnostics_fill arguments (remove weird combinations)
171    o fix MNC coordinate variables so that they now contain per-face index
172      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
173      general, EXCH2 grids are only aligned to a "local" coordinate system
174    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
175    o Implement instantaneous output within pkg diagnostics:
176      setting a negative frequency in data.diagnostics produces
177     "snap-shot" output (as opposed to time-average if freq > 0)
178    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
179      NOTE: change ptracer diagnostics name: use 2 characters to work with
180            more than 9 tracers. Add also diagnostics of advect & diffus flux.
181    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
182      becomes the coordinate variable for the 'T' dimension
183    o add CF-style coordinate variables to MNC
184      - just a first cut:  numbers are meaningless on the cubesphere and
185        missing along the T axis but otherwise it works!
186    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
187    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
188    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
189      this is based directly on what the model compute, so that the content of
190      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
191    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
192    o clean up build options files for SunOS, in particular
193      - remove -traditional from xmakedepend
194      - change -xarch=v9 to -xarch=native for f77
195      - restore use of make (not gmake)
196      - add CC=gcc if using g77
197    o changes per discussion of AM, JMC, & EH3 today:
198      - move redundant "grid" variables out of "state" -- in preparation of
199        creating proper CF-style coordinate variables and in recognition
200        that any/all grid variables can be easily copied (eg. w/NCO) from
201        the grid files into any of the other NetCDF files
202      - *always* output grid variables with MDSIO (this will eventually be
203        changed)
204      - output MNC grid file if useMNC is true
205    o every instance of _END_MASTER() has been found and replaced with
206      _END_MASTER( myThid ) in order to satisfy certain picky Sun
207      preprocessors
208    o re-arrange diagnostics pkg initialisation:
209     - allow each package to extend the available diagnostics list
210     - add some checking and fix small problems (multi-threaded, ...)
211     - new S/R diagnostics_fill (replace fill_diagnostics):
212       look through the short list of active diag. (instead of the long list)
213       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
214    
215    checkpoint57a_post
216    o this set of changes restores TAMC compatibility
217      tested for global_ocean.90x40x15 adjoint on trough
218      (what a pain)
219    
220    checkpoint57a_pre
221    o some modifs in tools/build_options for sunos
222    o call ctrl_pack for ctrl at end for optimcycle=0
223    
224    checkpoint57
225    o add horizontal bi-harmonic viscosity for vertical velocity
226      - new parameter viscA4W (defaults to viscA4)
227      - affects only non-hydrostatic code
228      - to be done: no-slip lateral boundary conditions
229    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
230    o implement Implicit Vertical advection for pTracers
231    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
232      (implemented also for implicit vertical diffusion & advection)
233    o OBCS: extend application of tracer open boundary conditions
234      to a strip beyond the boundary of width Olx/Oly
235    o add call monitor to TAF set of required calls (flow directives)
236      and include in natl_box_adjoint
237    o untangle a few ifdefs related to cost, ctrl, autodiff
238      untangel a few ALLOW_ECCO_OPTIMIZATION
239    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
240      (theta2, salt2 in ecco_cost_weights)
241    
242    checkpoint56c_post
243    o OBCS as control variables
244      - update ctrl_ad_diff.list, obcs_ad_diff.list
245      - remove balance of obcs controls from default
246      - fix index bug nobcs in ctrl_init
247      - fix dummy fields filen in ctrl_pack
248      - add dummy weights for obcs
249    o lsopt: comment out fort.94 output
250    o optim:
251      - remove unnecessary header files
252      - adjusted namelists
253      - add xerbla.F to Makefile
254    o exf:
255      - multiple modifications of exf_check_range
256      - unit change in exf_init_runoff from [m/year] to [m/s]
257    o mdsio:
258      - i/o-vector change debugLevel from debLevA to debLevB
259    
260    checkpoint56b_post
261    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
262      is called from DO_THE_MODEL_IO
263      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
264      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
265      - clean up PTRACERS_WRITE_TIMEAVE a little
266    o add another verification experiment that tests both the cfc-pkg and
267      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
268      reactive tendencies treated inline with regular timestepping
269    o testreport previously did a lousy job of comparing small numbers, so
270      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
271      implemented in the little c-progam tmp_cmpnum.c which is embedded in
272      testreport.
273    o ptracers_monitor: bug fix for MPI
274    
275    checkpoint56a_post
276    o GCHEM: finish reorganizating the package
277      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
278        (introduces another 3D-array for each passive tracer, but only if
279        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
280        gchemTendency is not needed because the timestep is done separately)
281      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
282      - GCHEM is now---more or less cleanly---separate from PTRACERS
283      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
284        so clear to me how that should be done in a general way.
285    o CFC: improve formatting of output in CFC_ATMOS
286    o PTRACERS:
287      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
288        that ALL experiments with ptracers enable can be checked. This makes
289        GCHEM_MONITOR obsolete.
290      - include a runtime parameter PTRACERS_monitorFreq that defaults to
291        monitorFreq
292      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
293    o add PTRACERS (PTR0[1-5]) to testreport output
294    o exf_check_range:
295      * default changed to .TRUE.
296      * will check values for niter0 if debLevA, every timestep if debLevB
297      * STOP in exf_check_range if 'out of range'
298      * range chosen generous to allow for potential extema
299      TBD: a version with stricter range
300           permitted range would be runtime parameters
301    o GMredi:
302      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
303      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
304      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
305    o GCHEM:
306      - move call to GCHEM_FORCING_SEP, so that it is now called before
307        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
308      - introduced a useGCHEM runtime flag and applied it everywhere.
309      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
310        this flag is now only visible within GCHEM-pkg routines.
311      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
312        be replaced by a 3D array that is computed before thermodynamics; for
313        this, the tracer ID iTracer had to be included into the parameter list
314        of ptracers_forcing
315      - set up forward_step to call gchem_forcing, that will replace
316        gchem_forcing_int in ptracers_forcing
317      - cleaning up
318    o small cleaning of exch2: remove files that are also in eesupp/src
319    
320    checkpoint56
321    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
322    o mnc: cleanup "full" files--fixes out-of-memory problem
323    o ECCO-GODAE
324      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
325      * fully merged and updated from SIO code
326        windstress sign change affects
327        - exf_inscal_[u/v]stress
328        - sign of xx_tau[u/v] adjustments
329        - signs in cost_scat
330      * ctrl_get_gen: avoid update of tau[u/v] for first few days
331      * natl_box_adjoint updated and compressed
332      * 2-level checkpoint switch added
333        (tested in EXP. 1 of natl_box_adjoint)
334      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
335    o SVD
336      * first complete, non-hacked version for SVD calculations
337      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
338        performed via direct access files admtlm_vector.it????
339        (via ctrl_[un]pack)
340      * optimcycle is used for ARPACK iteration counter
341        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
342      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
343        and add linear transforms where necessary
344      * controls are initial/final SST, SSS (can be extended; need to check
345        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
346    o mdsio: filename info to both stderr, stdout
347    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
348      from sign change
349    
350    checkpoint55j_post
351    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
352      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
353    o add consistent build directories and .cvsignore files to verification
354    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
355    o make all subroutines 30 or less characters in length for certain older
356      compilers to work (a thorough search only turns up two routines in
357      pkg/ptracers)
358    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
359      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
360    
361    checkpoint55i_post
362    o change arrays for total vertical diffusivity (2.D if explicit,
363      3.D if implicit) ; each ptracer uses its own background value.
364    o added mnc/NetCDF output capability to ocn_compon_interf
365      - added bits to verification/cpl_aim+ocn so that it can run on
366        ITRDA and other clusters without the mpirun "-wd" option
367    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
368      configuration
369    o give MNC the ability to create additional files rather than
370      exceeding a specified file size limit "MNC_MAX_FILESIZE"
371      - the default is just less than 2GB which is a practical limit
372        on many systems
373    o Compute the non-local term using either KPP vertical diffusivity (=default)
374       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
375    
376    checkpoint55h_post
377    o add verification test "vermix"
378    o remove all the *_ioinc flags and replace with the single global
379      outputTypesInclusive flag
380    o allow to set a vertical profile of vertical diffusivity for T & S
381    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
382    o useMNC moved from data.mnc to data.pkg
383    
384    checkpoint55g_post
385    o Renaming carbon AD experiments to comply with testreport conventions
386    o Updating adjoint of Held-Suarez hs94.1x64x5
387    o Fixing directives for non-ECCO forward_step, after ECCO directives
388      have been fixed to avoid recomp. of do_oceanic_phys
389      Works well for global_ocean.90x40x15,
390      but recomp. issue remains for carbon
391    o Updating adjoint output for natl_box_adjoint after
392      pkg/ecco has been modified (see taga c55d_post)
393    
394    checkpoint55f_post
395    o rename to timeave_init_fixed
396    
397    checkpoint55e_post
398    o some delicate re-shuffle of store directives to avoid one
399      extra call of do_oceanic_physics
400      affects ecco_the_main_loop.F, do_oceanic_physics.F
401      checkpoint_lev1_directives.h
402    o NB: this may break global_ocean adjoint temporarily,
403      but it is clear how to fix it. Will do later, need this now.
404    
405    checkpoint55d_post
406    o ECCO specific cost function terms (up-to-date with 1x1 runs)
407    o ecco_cost_weights is modified to 1x1 runs
408    o modifs to allow observations to be read in as
409      single file or yearly files
410    o enable to read exf forcing fields as either
411      single file or yearly files (flag useExfYearlyFields)
412    checkpoint55d_pre
413    
414    o switch between 2-level and 3-level checkpointing
415    o add ability of MNC to write local and "partial" (eg. 2D slices where
416      the full 3D field is never actually stored) arrays to NetCDF files
417      with the correct (that is, the complete multi-dimensional) set of
418      array indicies
419      - used in mom_vecinv() to write the diagFreq output
420      - tested (demonstrated) in verification/aim.5l_cs
421    o further mnc-ification
422      - add verification/lab_sea to the list with mnc setups
423      - fix undefined mnc v-names in cd_code
424      - add kpp to mnc output (both snapshot and timeave)
425    o non-hydrostatic code
426      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
427        in calc_gw.F
428      - defaults to viscAh
429      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
430        friction or Leith) in non-hydrostatic mode, as long as there is
431        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
432    o pkg/cost
433      extend simple cost functions to treat time mean quantities
434      (T,U,V) via cost_accumulate_state from cost_tile
435    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
436        be 2 times larger than the minimum size the advection scheme requires.
437        now get a perfect conservation of salt in advect_cs test-exp (updated)
438    o GGL90 (Gaspar's TKE mixed layer)
439      - add horizontal diffusion of TKE, requires exchanges in
440        do_fields_blocking_exchanges, horizontal diffusivity is zero by
441        default. In OPA there is no horizontal diffusion of TKE but the
442        mixing coefficients are computed from a horizontal average of TKE of
443        6 points or so. I think that diffusion has a little more physical
444        justification.
445      - clean up ggl90_calc in the hope of reducing memory usage (this hope
446        was in vain)
447      - mask tke-variable in ggl90_init
448    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
449    o fix biharmonic diffusion on CS-grid.
450    o more obcs stuff
451      - added obcs_external_fields_load as an alternative to the EXF-pkg option
452        for reading boundary values. This routine is called from
453        obcs_prescribe_read
454      - updated obcs_check
455      - changed sponge layer relaxation parameter units for days to seconds
456      - turned off sponge layer by default
457      - changed argument list of OBCS_CALC to myTime+deltaTclock
458      - fixed about 35 bugs in obcs_external_fields_load
459    
460    checkpoint55c_post
461    o obcs stuff
462      - new runtime flags useOBCSprescribe, useOBCSbalance
463      - re-arranged obcs_calc
464      - moved exf_getobcs to obcs_prescibe_read
465        obcs_prescibe_read is called after ORLANSKI stuff
466        and independent of it (executable can contain all).
467      - updated obcs_check
468      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
469        These may be necessary only if tangential velocities are
470        prescribed at OB, not sure, needs testing.
471    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
472      which simplifies the calls and passes the ifc check-bounds test
473    
474    checkpoint55b_post
475    o add a 2D scalar, Z location, exchange_2 routine.
476    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
477      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
478      affects advect_cs results (for the wrong reason): update output.txt
479    o use a more standard discretization for biharmonic viscosity ;
480     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
481      affects results of dome set-up: update output.txt
482    o fix gad_advection.F (CubedSphere part), back to version 1.23
483    o fix bug in mom_vi_del2uv.F (CubedSphere part).
484    
485    checkpoint55a_post
486    o merged code to
487      * prescribe/read time-dependent open boundaries
488        (works in conjunction with exf, cal)
489      * sponge layer code for open boundaries
490      * each boundary N/S/E/W now has its own CPP option
491        (healthy for the adjoint)
492    
493    checkpoint55
494    o up-to-date adjoint of previous breaks
495      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
496      - global_ocean_ebm: adjoint still needs fix (TLM ok)
497      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
498      - carbon: * remove tr1-related adjoint verification
499                * add ptracer as control variable
500    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
501      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
502    
503    checkpoint54f_post
504    o in verification/carbin/ remove experiment related to
505      ALLOW_PASSIVE_TRACER (array tr1 etc)
506      code_ad/ input_ad/ results_ad
507    
508    o add two new packages
509      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
510        + subject to optimization (memory)
511      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
512        + subject to reordering (many GOTOs in the original code)
513        + so far opps is called for every (i,j) point, and then operates in
514          the vertical; one may want to reorder the scheme in order operate in
515          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
516          fields)
517    o overhaul of IO so that we now have flags for MDSIO and/or MNC
518      - all verification tests compile and run with linux_ia32_g77
519      - defaults are compatible with current input files--nothing
520        should change if you were not previously using MNC
521      - MNC output has been added in numerous places (eg. timeave)
522        but there are still a few writes not yet do-able with MNC
523        (this is in progress)
524      - flags now allow for either/or/both use of MDSIO and MNC and
525        documentation will soon follow
526      - numerous small formatting cleanups for ProTeX
527    o add version info (via BUILD_INFO.h) to MNC and stdout
528    
529    checkpoint54e_post
530    o add two new packages
531      - pp81 (Packanowski and Philander, 1981), Richardson number and
532        stratification dependent mixing
533      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
534      - these scheme operate in a similar manner as KPP (without ghat, of
535        course), however there is only one diffusivity that is used for both
536        temperature and salinity (and passive tracers)ç
537    o add offline package
538    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
539      provided by Stephanie Dutkiewicz
540    o genmake2: add ability to search for C compilers and cleanup test output
541      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
542    
543    checkpoint54d_post
544    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
545    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
546      leading to additional shift by 5 days each year of integration
547       (i.e. leading to considerable offset over the years)
548    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
549    o start with no AB and no initial filtering (staggerTimeStep):
550      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
551    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
552      (external loading & cpl import/export stay in forward_step.F)
553    o update coupling interface to work with new staggerTimeStep
554    o change MDSIO ptracers_pickup.
555    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
556    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
557    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
558    
559    checkpoint54c_post
560    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
561      this affects (truncation error) output.txt of test-exp:
562       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
563    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
564    o change Qnet to always be the net heat flux, (+upward).
565      affects (truncation error) output of natl_box exp.: updated
566    o define the max number of passive tracers in PTRACERS_SIZE.h
567    o start to test mnc routinely in exp0
568    o add sea-ice loading (sIceLoad) as a new forcing field.
569    
570    checkpoint54b_post
571    o add testreport "-j JOBS" option for parallel builds (tested and pretty
572       impressive on Altix and Opteron systems)
573    o diagnostics can now write NetCDF files through the mnc package
574    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
575    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
576    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
577      affects (truncation error) output of lab_sea & natl_box exp.: updated
578    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
579    
580    checkpoint54a_post
581    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
582    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
583    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
584    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
585      + internal_wave (shift in writing cg2d_ini_res)
586    checkpoint54a_pre
587    
588    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
589      - modified verification/lab_sea and natl_box_adjoint accordingly
590    
591    checkpoint54
592    checkpoint53g_post
593    o prepare splitting of thermodynamics: store convect.counter in common block
594    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
595      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
596    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
597    o new parameter "nShapS": allow to treat differently S from T (nShapT)
598    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
599    o restore adjointability
600    
601    checkpoint53f_post
602    o modifications that affect AIM experiment results (update output.txt):
603      - no advection of S at top interface Nr (pkg/generic_advdiff)
604      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
605    o AIM pkg:
606      - include stability function into surf.Flux derivative relative to Tsurf
607      - calculate clear-sky radiation & surface temp. change (for diagnostics)
608    
609    checkpoint53e_post
610    o merged cylindrical coord configuration
611    o added rotating_tank experiment
612    checkpoint53e_pre
613    
614    checkpoint53d_post
615    o faulks upgraded: re-generate output.txt that have changed:
616       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
617    o Added Bryan and Lewis, 1979, vertical diffusivity profile
618    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
619    o added Sadourny discretization of Coriolis
620      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
621      - re-enabled use of omega3 (useAbsVorticity)
622    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
623      vector-invariant equations
624      - note: does *NOT* yet use same variable visc. for no-slip BC's.
625    o recoded the lateral boundary conditions for non-hydrostatic w, this time
626      hopefully without new bugs
627      - still to do: biharmonic friction for non-hydrostatic w
628    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
629    o regenerated output for global_ocean_ebm (using -ieee)
630    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
631      of mom_common/
632      - simple re-arrangement of instructions within computing loop
633    checkpoint53d_pre
634    
635    checkpoint53c_post
636    o new version of coupler for AIM+thSIce and Ocean models
637     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
638     - land: change Evaporation of snow
639     - aim with thSIce: fix bug in snow-precip.
640    o changes to calc_gw.F
641     - bug fix for w^2 term near the bottom boundary
642     - (hopefully) improve the lateral slip boundary condtions for use with
643        partial/looped cells
644      - because the bug fix changes two verification experiments anyway (exp5
645        and plume on slope), change the lateral boundary condition from half slip
646        to the value of no_slip_sides
647    o ebm package wasnt quite up to the parallel task. Fixed that.
648    o Adjoint of EBM package + verification
649      * TLM OK
650      * ADM not sufficient accuracy yet (needs further testing)
651    
652    checkpoint53b_post
653    o Commiting new energy balance model to repository
654      * package is pkg/ebm
655      * verif. is verification/global_ocean_ebm
656      * references are in ebm_driver.F
657    C      * X. Wang, P. Stone and J. Marotzke, 1999:
658    C        Global thermohaline circulation. Part I:
659    C        Sensitivity to atmospheric moisture transport.
660    C        J. Climate 12(1), 71-82
661    C      * X. Wang, P. Stone and J. Marotzke, 1999:
662    C        Global thermohaline circulation. Part II:
663    C        Sensitivity with interactive transport.
664    C        J. Climate 12(1), 83-91
665    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
666    C        Destabilization of the thermohaline circulation
667    C        by atmospheric eddy transports.
668    C        J. Climate 7(12), 1870-1882
669    o Will need long integration testing.
670    checkpoint53b_pre
671    
672    o created pkg/mom_common in preparation for variable viscosity code
673    o renamed and split ini_mnc_io
674    o pkg/land: only liquid water can diffuse or run-off
675    o AIM using land: soil wetness availability account for snow
676    o added printMapIncludesZeros to EEPARMS namelist
677    
678    checkpoint53a_post
679    o restore TAMC compatiility for exf_constants.h
680      (no usage of _d in .h)
681    o Additional storing in KPP in an attempt to fix
682      TAMC problem with adjoint of KPP code.
683      (no success...)
684      Identical code works fine with TAF.
685    o Fixed verification/natl_box_adjoint experiments.
686      Initial conditions for Experiments 4 and 5 are now
687      set to "SEAICE_initialHEFF=0", which is more reasonable,
688      and hence gives results closer to that of Experiment 2.
689      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
690    
691    checkpoint53
692    o stable checkpoint with up to date adjoint
693      TLM tests only run for 1st grdchk at the moment. Its unclear if
694      this is a code problem or a problem with resetting code for g_
695      variables that is being autogenerated wrong.
696      Otherwise:
697       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
698       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
699         are both still in chaos following their security messes.
700    
701    checkpoint52n_post
702    o various build (mostly genmake2) changes including:
703      - ability to build/run more easily within Cygwin and MacOS X
704      - more complicated Makefiles with a stronger dependence on Gnu Make
705    o pkg/seaice modifications
706      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
707        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
708        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
709      - changed proxy for geostrophic velocity and updated
710        verification/lab_sea/results/* accordingly
711      - removed ADI dynamic solver from pkg/seaice
712      - replaced all occurrences of 1/CSTICE or 1/CSUICE
713        they caused a segmentation fault under certain circumstances
714      - removed unused field WATR
715    o bug fix in exf-package:
716      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
717         now reflect that.
718    o small fixes in the cal-package:
719      - set reference date to first of January for the 'model'-calendar
720      - failing of cal_CheckDate in cal_FullDate now actually results in a
721        warning
722    o small modifications in exf-package to increase flexibility:
723      - change climtempfreeze from a constant to a runtime parameter that
724        is specified in data.exf_clim (default = -1.9)
725      - introduce runtime parameter windstressmax (default = 2.0) that is
726        specified in data.exf
727    o fix in pkg/thsice:
728      - update Evap (Tsf changes) to be consistent with Latent heat flux
729      - maintain snow precipitation unchanged (even if Tsf >=0).
730     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
731    
732    checkpoint52m_post
733    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
734      this does not change any of the results, because myIter=0 in swfrac always
735      lead to jwtype=2 (the default anyway), but the call makes little sense
736      as a default
737    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
738    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
739      atmospheric model (AIM) to use it ; add a "slab ocean" component.
740    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
741    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
742    o extending useSingleCpuIO option to work with new exch2 I/O format
743      - old-style, missing-tile I/O is still accessible by defining CPP
744        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
745    o monitor package can write to NetCDF files and/or STDOUT
746    o fix re-definition bug in MNC_GRID_INIT_ALL()
747    o doc/api_reference added
748      - a framework for building an API Reference Manual using all
749        the "protex" comments embedded in the code
750      - see pkg/generic_advdiff, pkg/mnc for examples
751    o MNC:
752      - make myThid the last argument for all subroutines
753      - new default for the grid files: NO halos
754      - add useMNC and other run-time flags
755      - separate per-file-group handling of the unlimited dimension
756      - early initialization of MNC w/ flags read at the eeboot stage
757        and lookup tables set in initialize_fixed
758      - write all MNC output to a freshly-created directory
759  o thermodynamics sea-ice (thsice) is now tested with testreport.  o thermodynamics sea-ice (thsice) is now tested with testreport.
760  o test exp. advect_cs: use the standard cs32 grid ; update output.  o test exp. advect_cs: use the standard cs32 grid ; update output.
761    o Added functionality to grdchk:
762      pick global i,j,k position (or nearest wet) where to perform check.
763    
764  checkpoint52l_post  checkpoint52l_post
765  o new land formulation:  o new land formulation:

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