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revision 1.226 by jmc, Tue Dec 16 15:16:39 2003 UTC revision 1.563 by mlosch, Mon Oct 10 05:57:48 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    checkpoint57s_post
8    o OBCS and PTRACERS: add open boundary support for passive tracers
9      - either use homogenous (pseudo) v.Neumann conditions or prescribe
10        OB-values from file; this is not different from the way theta and salinity
11        are treated
12      - however, Orlanski-radiation conditions are not supported, and the model
13        will stop if you use pTracers and Orlanski at the same time.
14      - beefed up the rountine obcs_external_fields_load: now only those open
15        boundary values are overwritten with values from files for which there
16        are really files, otherwise the OB-fields remain untouched. This makes
17        it possible to use different OBs at different ends of the domain (as
18        with EXF)
19    o reduce number of exch calls in shap_filt (s2).
20    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
21      truncation level) 4/5 MLAdjust test results (11&12 digits match).
22    
23    checkpoint57t_post
24    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
25    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
26      same truncation, independent of the face number: affects affects several
27      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
28    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
29      note that biharmonic viscosity + no-slip was not tested in any experiment.
30    o fix bug in non-linear free-surf side-drag ; generate new output for
31      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
32    o make mnc honor the writeBinaryPrec flag for most kinds of output
33    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
34    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
35      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
36    o add brackets in multi-terms sum to get same truncation, independent of
37      the face number (manage to get exactly same value of gU,gV at the cs-edge)
38      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
39    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
40      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
41      a maximum grid-scale Reynolds number.  Also, changes all length calculations
42      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
43      Suggested values of viscosity parameters found in mom_calc_visc.
44      Many new viscosity diagnostics available.
45    
46    checkpoint57s_post
47    o Add clearing-house for viscosity calculations, mom_calc_visc and
48      correct numerous bugs in LeithD and Smagorinsky discretizations.  
49      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
50      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
51      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
52      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
53      The Strain-Tension form is now called with useStrainTensonVisc=.true.
54      ViscAhStrain and viscAhTension are now retired.
55    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
56    o In response to JMC's bug report, genmake2 now ignores any soft-links
57      that it finds in the *current* directory when searching for files.
58      Soft-links found in any other source directories will still work as
59      they did before.
60    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
61      a C routine to unlimit the stack size
62    o mnc-ify pkg/aim snapshot vars
63    o mnc-ify pkg/land as requested by Daniel
64    o various changes to mnc including:
65      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
66      - output can now be grouped so that all files within a group
67          change the ITER portion of their names in lock-step together
68      - can now read ("global") PER-FACE (in addition to PER-TILE) files
69          and works with both EXCH1 and EXCH2 (but needs more testing)
70      - writing works for all verification test cases w/ g77 on Linux
71    
72    checkpoint57r_post
73    o make MNC variable initialization happen earlier
74    o add diagnostics for (almost) each term of the momentum Eq.
75    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
76    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
77    o remove MINIMAL_TAVE_OUTPUT option ;
78      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
79    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
80      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
81    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
82    o add time-dependent SST, SSS control
83    o cost terms in ecco/ modularized (new cost_generic.F)
84    o cost_averages routines are modularized (new cost_averagesgeneric.F)
85    o new infrastructure for seaice model vs. obs misfits in seaice/
86      * driver from the_main_loop.F is seaice_cost_driver.F
87      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
88      * gradient check in Exp. 6a of natl_box_adjoint/
89    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
90      (see README file)
91    
92    checkpoint57q_post
93    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
94    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
95      - bug was reported by Jean-Michel and Ian Fenty
96    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
97      update exp. cpl_aim+ocn output.
98    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
99      Needed for high-res. runs with large global files
100      to be able to limit tapelev size
101    o Changed some tests for adjoint:
102      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
103      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
104      * global_ocean.90x40x15/ back to default 3-level checkpointing
105    o Modifications to enable scripted COMMON to MODULE conversion
106      * verification/OpenAD/code/ has necessary scripts and description;
107      * converts, compiles and runs successfully;
108    
109    checkpoint57p_post
110    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
111    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
112      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
113    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
114    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
115      (was already the case for dissipation with mom_vecinv,
116       and also the case for grad.PhiHyd when staggered-timeStep)
117      This will allow to put dissipation out-off the AB time-stepping.
118     Unfortunately, affects truncation error. Update output of exp. that "fails"
119      (cg2d matching number) and leave the others for later: front_relax(10),
120      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
121      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
122    
123    checkpoint57o_post
124    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
125      (2) its ready to be documented during the 20050801 DocFest
126    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
127      for ideal_2D_oce and lab_sea on linux_ia32_g77
128    o set to #undef CTRL_SET_OLD_MAXCVARS_30
129      in global1x1_tot/code_seaice_adj to access indices 32, 33
130      (worth another tag)
131    
132    checkpoint57n_post
133    o adding precip control xx_precip 32
134    o adding swflux control xx_swflux 33
135    o Replacing 10 forcing penalty cost routines by 1 generic.
136    o Implementing partitioning in time-mean and variable adjustment
137      for atmos. state.
138    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
139    o in natl_box_adjoint:
140      * updated exp 1 to 10
141        (but does not have time-mean vs. variable split results yet)
142    o updated global1x1/*_seaice_adj/
143      to incorporate latest changes
144    o enable useSingleCpuIO for mdsio vector routines
145      (applies in particular to tapelev I/O)
146    o removed inefficient K-loop in all active_file*control*.F
147    
148    checkpoint57m_post
149    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
150      and advect_cs (use EXCH-2 and standard cs-32 grid files).
151    o pkg/exch2: filling of face-corner halo regions is optional
152      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
153    
154    checkpoint57l_post
155     tag before updating tutorials (pre-release-2)
156    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
157       for output and interpolation of input fields onto model grid)
158    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
159       Affects results of exp. rotating_tank ; update output.txt.
160    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
161          and taking the square quantity and/or using a fraction-weight field.
162    o fix aim_diagnostics_init.F mate numbers.
163    o add mnc output capability to diagnostics/diagstat and update
164      our cvsignore files for the ACSII output generated
165    
166    checkpoint57k_post
167    o lab_sea now uses diagnostics package and provides a suite of
168      new EXF diagnostics output.
169    
170    checkpoint57j_post
171    o exf
172      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
173        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
174        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
175      * extended diagnostics output
176        - now includes all EXF variables
177        - hs, hl moved to common block
178        - separate S/R for diagnostics, called after ctrl vector is added
179        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
180        - EXFqnet contains true Qnet (i.e. includes qsw)
181      * updated verif. lab_sea, global_with_exf
182      * Rearranging hflux (exf_mapfields -> exf_getforcing)
183        to ensure that diagnostics sees a true EXFqnet
184    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
185    o diagnostics pkg: change pointers so that 1 diagnostic can be used
186      several times with different frequencies.
187    o mnc-ify the thsice package as requested by Daniel Enderton
188      - the monitor--MNC output needs work
189      - many attributes need to be added (most are currently blank)
190    o mnc-ify theaim_v23 package as requested by Daniel Enderton
191      - many attributes need to be added (most are currently blank)
192    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
193    o add Sadourny like discretization to the 4th.O vorticity advection scheme
194    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
195      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
196         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
197    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
198     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
199    
200    checkpoint57i_post
201    o Diagnostics package was changed: diagnostic allocation is now deactivated
202      by setting an empty file name in the namelist (used to be by setting 0 frequency)
203    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
204      add 1rst Order upwind vertical Shear.
205    o add a quick fix for A/B checkpointing in OFFLINE mode
206    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
207      end-run around the C/Fortran linking horror in eesup/src/timers.F
208    o added pkg/runclock: allows user to terminate run based on wall clock
209    o added non-hydrostatic scaling parameter: nh_am2
210    o pkg/my82: futile attempt to make results compiler-independent by adding
211      some "_d 0", etc. no effect.
212    o for mnc output, fill the 'T' coordinate var with myTime and create a
213      separate 'iter' variable for iteration count
214    o pkg/diagnostics:
215      add new capability: output of Global/Regional & per-level statistics ;
216      tested against monitor output (including land & thSIce) on various exp.
217    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
218    
219    checkpoint57h_done
220      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
221      data.diagnostics, data.gchem, data.ptracers) is done.
222    
223    o pkg/diagnostics: prepare for Global/Regional statistics.
224      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
225    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
226      and rename it: DIFFERENT_MULTIPLE
227    
228    checkpoint57h_post
229    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
230    o pkg/diagnostics: change output frequency, now in seconds (instead
231      of Nb of iterations). This requires to change data.diagnostics.
232    checkpoint57h_pre
233    
234    o in mnc, let the user create the output dir if both mnc_outdir_date
235      and mnc_outdir_num are false
236    o add fflags() to pkg/diagnostics which allows one to specify, on a
237      per-file basis, the file precision [default behavior is unchanged]
238    o added diagnostics to pkg/kpp, including computation of mixed layer
239      depth based on a temperature/density criterion
240    o updated verification/natl_box to test the new pkg/kpp diagnostics
241    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
242    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
243    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
244      not mnc -- this mistake was found by JMC and is now corrected
245    
246    checkpoint57g_post
247    o add Adams-Bashforth 3rd Order time stepping:
248      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
249      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
250    checkpoint57g_pre
251    
252    o make lambda[Theta,Salt]ClimRelax spatially varying
253      (default remains spatially uniform constant based on tau)
254    o added new control variables
255      * init. uVel, vVel, etanN
256      * lambda[Theta,Salt]ClimRelax
257    o separate masks used for ctrl_pack/unpack 'from write_grid' output
258      (suggested by G. Forget)
259    
260    checkpoint57f_post
261    o add parameter "baseTime" = model base time = time at iteration zero
262      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
263      account for baseTime shift
264    o move Coriolis arrays from PARAMS.h to GRID.h
265    checkpoint57f_pre
266    
267    o mnc-ifying the seaice package
268    o introduced an alternative length scale calculation for use in the limiting
269      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
270    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
271    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
272      as well as grad(vort3).  Made it compatible with both approximate form
273      for the cubed sphere and full form of these gradients.  Added flag
274      useFullLeith to select between approximate and full form.  
275    o add "d0" in getcon.F to reduce differences between compilers/platforms
276      update output.txt of exp. fizhi-gridalt-hs
277    o change port_rand funtion to allow to set the seed.
278    o fix obscure MNC bug involving conversion between reals and integers
279      - it caused no problems with certain (eg. gcc, ifc) compilers but the
280        new version is now more standards-compliant
281    o adjoint-related modifications
282      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
283      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
284      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
285    
286    checkpoint57e_post
287    o Adding eddy stress controls a la Ferreira et al.
288    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
289    
290    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
291      update output.txt of exp. fizhi-gridalt-hs
292    o add more "Z" dimensions and associated coordinate vars to MNC
293    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
294    o parameter calendarDumps: when set, approximate months (30-31 days) and years
295      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
296      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
297      months and years.  Requires pkg/cal.
298    o diagnostics: add pickup functionality
299      - off by default for backwards compatibility
300      - current version only uses MDSIO -- MNC will be added
301    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
302    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
303    
304    checkpoint57d_post
305    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
306    o modify verification/ideal_2D_oce so that it tests the creation of mnc
307      output from the diagnostics package
308    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
309    o make genmake2 more portable by using ".$FS" instead of ".f" for more
310      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
311    o add coordinate variables to the MNC output from the diagnostics package
312    o change MNC-flags default value: true when useMNC=TRUE
313    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
314      the ability (off by default) to read the grid information using MNC
315    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
316    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
317    o do snap-shot diagnostics at the middle of the time-interval (instead of
318      at the end).
319    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
320      new test for AIM with thSIce + slab-ocean
321    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
322    o move state variable diagnostics to the beginning of the time step ;
323      (note: still needs some work specially for snap-shot diagnostics)
324      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
325    
326    checkpoint57c_post
327    o Change testing option (-ieee) to get closer agreement between g77 & ifort
328    o generate new output.txt files on faulks with g77 & the new -ieee option
329    checkpoint57c_pre
330    
331    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
332      update output.txt of exp. global_ocean.90x40x15
333    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
334      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
335    o add saltFlux(+File) forcing capability with periodicExternalForcing
336    o allow to use pkg diagnostics for GM-Redi & ThSIce output
337    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
338    o improvements for the MNC output from DIAGNOSTICS:
339      - correct handling of the unlimitied dimension
340      - all dims now have associated coordinate variables
341      - variables located at U, V, and Corner ("Z") points are now written
342        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
343        *all* data points are output
344    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
345    o added pkg/seaice/seaice_monitor.F
346    o mdsio_readfield.F can now read files visible only to master MPI process.
347    o pkg/seaice: some test code for ice-modified ocean stress
348    o exf_getffields interpolation defaults to bilinear for all scalar forcing
349      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
350      spurious negative numbers for precipitation and humidity.  Will cause
351      some small numerical differences for integrations using pkg/exf/exf_interp.F.
352    o pkg/ctrl/
353      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
354        May be enabled via doPackDiag
355      *  introduce z-scaling of
356         + gradient (doZscalePack) and
357         + control (doZscaleUnpack)
358    o pkg/mdsio/
359      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
360      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
361    
362    checkpoint57b_post
363    o simplify options in diagnostics_fill arguments (remove weird combinations)
364    o fix MNC coordinate variables so that they now contain per-face index
365      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
366      general, EXCH2 grids are only aligned to a "local" coordinate system
367    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
368    o Implement instantaneous output within pkg diagnostics:
369      setting a negative frequency in data.diagnostics produces
370     "snap-shot" output (as opposed to time-average if freq > 0)
371    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
372      NOTE: change ptracer diagnostics name: use 2 characters to work with
373            more than 9 tracers. Add also diagnostics of advect & diffus flux.
374    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
375      becomes the coordinate variable for the 'T' dimension
376    o add CF-style coordinate variables to MNC
377      - just a first cut:  numbers are meaningless on the cubesphere and
378        missing along the T axis but otherwise it works!
379    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
380    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
381    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
382      this is based directly on what the model compute, so that the content of
383      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
384    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
385    o clean up build options files for SunOS, in particular
386      - remove -traditional from xmakedepend
387      - change -xarch=v9 to -xarch=native for f77
388      - restore use of make (not gmake)
389      - add CC=gcc if using g77
390    o changes per discussion of AM, JMC, & EH3 today:
391      - move redundant "grid" variables out of "state" -- in preparation of
392        creating proper CF-style coordinate variables and in recognition
393        that any/all grid variables can be easily copied (eg. w/NCO) from
394        the grid files into any of the other NetCDF files
395      - *always* output grid variables with MDSIO (this will eventually be
396        changed)
397      - output MNC grid file if useMNC is true
398    o every instance of _END_MASTER() has been found and replaced with
399      _END_MASTER( myThid ) in order to satisfy certain picky Sun
400      preprocessors
401    o re-arrange diagnostics pkg initialisation:
402     - allow each package to extend the available diagnostics list
403     - add some checking and fix small problems (multi-threaded, ...)
404     - new S/R diagnostics_fill (replace fill_diagnostics):
405       look through the short list of active diag. (instead of the long list)
406       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
407    
408    checkpoint57a_post
409    o this set of changes restores TAMC compatibility
410      tested for global_ocean.90x40x15 adjoint on trough
411      (what a pain)
412    
413    checkpoint57a_pre
414    o some modifs in tools/build_options for sunos
415    o call ctrl_pack for ctrl at end for optimcycle=0
416    
417    checkpoint57
418    o add horizontal bi-harmonic viscosity for vertical velocity
419      - new parameter viscA4W (defaults to viscA4)
420      - affects only non-hydrostatic code
421      - to be done: no-slip lateral boundary conditions
422    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
423    o implement Implicit Vertical advection for pTracers
424    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
425      (implemented also for implicit vertical diffusion & advection)
426    o OBCS: extend application of tracer open boundary conditions
427      to a strip beyond the boundary of width Olx/Oly
428    o add call monitor to TAF set of required calls (flow directives)
429      and include in natl_box_adjoint
430    o untangle a few ifdefs related to cost, ctrl, autodiff
431      untangel a few ALLOW_ECCO_OPTIMIZATION
432    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
433      (theta2, salt2 in ecco_cost_weights)
434    
435    checkpoint56c_post
436    o OBCS as control variables
437      - update ctrl_ad_diff.list, obcs_ad_diff.list
438      - remove balance of obcs controls from default
439      - fix index bug nobcs in ctrl_init
440      - fix dummy fields filen in ctrl_pack
441      - add dummy weights for obcs
442    o lsopt: comment out fort.94 output
443    o optim:
444      - remove unnecessary header files
445      - adjusted namelists
446      - add xerbla.F to Makefile
447    o exf:
448      - multiple modifications of exf_check_range
449      - unit change in exf_init_runoff from [m/year] to [m/s]
450    o mdsio:
451      - i/o-vector change debugLevel from debLevA to debLevB
452    
453    checkpoint56b_post
454    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
455      is called from DO_THE_MODEL_IO
456      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
457      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
458      - clean up PTRACERS_WRITE_TIMEAVE a little
459    o add another verification experiment that tests both the cfc-pkg and
460      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
461      reactive tendencies treated inline with regular timestepping
462    o testreport previously did a lousy job of comparing small numbers, so
463      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
464      implemented in the little c-progam tmp_cmpnum.c which is embedded in
465      testreport.
466    o ptracers_monitor: bug fix for MPI
467    
468    checkpoint56a_post
469    o GCHEM: finish reorganizating the package
470      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
471        (introduces another 3D-array for each passive tracer, but only if
472        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
473        gchemTendency is not needed because the timestep is done separately)
474      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
475      - GCHEM is now---more or less cleanly---separate from PTRACERS
476      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
477        so clear to me how that should be done in a general way.
478    o CFC: improve formatting of output in CFC_ATMOS
479    o PTRACERS:
480      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
481        that ALL experiments with ptracers enable can be checked. This makes
482        GCHEM_MONITOR obsolete.
483      - include a runtime parameter PTRACERS_monitorFreq that defaults to
484        monitorFreq
485      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
486    o add PTRACERS (PTR0[1-5]) to testreport output
487    o exf_check_range:
488      * default changed to .TRUE.
489      * will check values for niter0 if debLevA, every timestep if debLevB
490      * STOP in exf_check_range if 'out of range'
491      * range chosen generous to allow for potential extema
492      TBD: a version with stricter range
493           permitted range would be runtime parameters
494    o GMredi:
495      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
496      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
497      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
498    o GCHEM:
499      - move call to GCHEM_FORCING_SEP, so that it is now called before
500        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
501      - introduced a useGCHEM runtime flag and applied it everywhere.
502      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
503        this flag is now only visible within GCHEM-pkg routines.
504      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
505        be replaced by a 3D array that is computed before thermodynamics; for
506        this, the tracer ID iTracer had to be included into the parameter list
507        of ptracers_forcing
508      - set up forward_step to call gchem_forcing, that will replace
509        gchem_forcing_int in ptracers_forcing
510      - cleaning up
511    o small cleaning of exch2: remove files that are also in eesupp/src
512    
513    checkpoint56
514    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
515    o mnc: cleanup "full" files--fixes out-of-memory problem
516    o ECCO-GODAE
517      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
518      * fully merged and updated from SIO code
519        windstress sign change affects
520        - exf_inscal_[u/v]stress
521        - sign of xx_tau[u/v] adjustments
522        - signs in cost_scat
523      * ctrl_get_gen: avoid update of tau[u/v] for first few days
524      * natl_box_adjoint updated and compressed
525      * 2-level checkpoint switch added
526        (tested in EXP. 1 of natl_box_adjoint)
527      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
528    o SVD
529      * first complete, non-hacked version for SVD calculations
530      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
531        performed via direct access files admtlm_vector.it????
532        (via ctrl_[un]pack)
533      * optimcycle is used for ARPACK iteration counter
534        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
535      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
536        and add linear transforms where necessary
537      * controls are initial/final SST, SSS (can be extended; need to check
538        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
539    o mdsio: filename info to both stderr, stdout
540    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
541      from sign change
542    
543    checkpoint55j_post
544    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
545      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
546    o add consistent build directories and .cvsignore files to verification
547    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
548    o make all subroutines 30 or less characters in length for certain older
549      compilers to work (a thorough search only turns up two routines in
550      pkg/ptracers)
551    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
552      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
553    
554    checkpoint55i_post
555    o change arrays for total vertical diffusivity (2.D if explicit,
556      3.D if implicit) ; each ptracer uses its own background value.
557    o added mnc/NetCDF output capability to ocn_compon_interf
558      - added bits to verification/cpl_aim+ocn so that it can run on
559        ITRDA and other clusters without the mpirun "-wd" option
560    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
561      configuration
562    o give MNC the ability to create additional files rather than
563      exceeding a specified file size limit "MNC_MAX_FILESIZE"
564      - the default is just less than 2GB which is a practical limit
565        on many systems
566    o Compute the non-local term using either KPP vertical diffusivity (=default)
567       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
568    
569    checkpoint55h_post
570    o add verification test "vermix"
571    o remove all the *_ioinc flags and replace with the single global
572      outputTypesInclusive flag
573    o allow to set a vertical profile of vertical diffusivity for T & S
574    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
575    o useMNC moved from data.mnc to data.pkg
576    
577    checkpoint55g_post
578    o Renaming carbon AD experiments to comply with testreport conventions
579    o Updating adjoint of Held-Suarez hs94.1x64x5
580    o Fixing directives for non-ECCO forward_step, after ECCO directives
581      have been fixed to avoid recomp. of do_oceanic_phys
582      Works well for global_ocean.90x40x15,
583      but recomp. issue remains for carbon
584    o Updating adjoint output for natl_box_adjoint after
585      pkg/ecco has been modified (see taga c55d_post)
586    
587    checkpoint55f_post
588    o rename to timeave_init_fixed
589    
590    checkpoint55e_post
591    o some delicate re-shuffle of store directives to avoid one
592      extra call of do_oceanic_physics
593      affects ecco_the_main_loop.F, do_oceanic_physics.F
594      checkpoint_lev1_directives.h
595    o NB: this may break global_ocean adjoint temporarily,
596      but it is clear how to fix it. Will do later, need this now.
597    
598    checkpoint55d_post
599    o ECCO specific cost function terms (up-to-date with 1x1 runs)
600    o ecco_cost_weights is modified to 1x1 runs
601    o modifs to allow observations to be read in as
602      single file or yearly files
603    o enable to read exf forcing fields as either
604      single file or yearly files (flag useExfYearlyFields)
605    checkpoint55d_pre
606    
607    o switch between 2-level and 3-level checkpointing
608    o add ability of MNC to write local and "partial" (eg. 2D slices where
609      the full 3D field is never actually stored) arrays to NetCDF files
610      with the correct (that is, the complete multi-dimensional) set of
611      array indicies
612      - used in mom_vecinv() to write the diagFreq output
613      - tested (demonstrated) in verification/aim.5l_cs
614    o further mnc-ification
615      - add verification/lab_sea to the list with mnc setups
616      - fix undefined mnc v-names in cd_code
617      - add kpp to mnc output (both snapshot and timeave)
618    o non-hydrostatic code
619      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
620        in calc_gw.F
621      - defaults to viscAh
622      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
623        friction or Leith) in non-hydrostatic mode, as long as there is
624        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
625    o pkg/cost
626      extend simple cost functions to treat time mean quantities
627      (T,U,V) via cost_accumulate_state from cost_tile
628    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
629        be 2 times larger than the minimum size the advection scheme requires.
630        now get a perfect conservation of salt in advect_cs test-exp (updated)
631    o GGL90 (Gaspar's TKE mixed layer)
632      - add horizontal diffusion of TKE, requires exchanges in
633        do_fields_blocking_exchanges, horizontal diffusivity is zero by
634        default. In OPA there is no horizontal diffusion of TKE but the
635        mixing coefficients are computed from a horizontal average of TKE of
636        6 points or so. I think that diffusion has a little more physical
637        justification.
638      - clean up ggl90_calc in the hope of reducing memory usage (this hope
639        was in vain)
640      - mask tke-variable in ggl90_init
641    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
642    o fix biharmonic diffusion on CS-grid.
643    o more obcs stuff
644      - added obcs_external_fields_load as an alternative to the EXF-pkg option
645        for reading boundary values. This routine is called from
646        obcs_prescribe_read
647      - updated obcs_check
648      - changed sponge layer relaxation parameter units for days to seconds
649      - turned off sponge layer by default
650      - changed argument list of OBCS_CALC to myTime+deltaTclock
651      - fixed about 35 bugs in obcs_external_fields_load
652    
653    checkpoint55c_post
654    o obcs stuff
655      - new runtime flags useOBCSprescribe, useOBCSbalance
656      - re-arranged obcs_calc
657      - moved exf_getobcs to obcs_prescibe_read
658        obcs_prescibe_read is called after ORLANSKI stuff
659        and independent of it (executable can contain all).
660      - updated obcs_check
661      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
662        These may be necessary only if tangential velocities are
663        prescribed at OB, not sure, needs testing.
664    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
665      which simplifies the calls and passes the ifc check-bounds test
666    
667    checkpoint55b_post
668    o add a 2D scalar, Z location, exchange_2 routine.
669    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
670      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
671      affects advect_cs results (for the wrong reason): update output.txt
672    o use a more standard discretization for biharmonic viscosity ;
673     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
674      affects results of dome set-up: update output.txt
675    o fix gad_advection.F (CubedSphere part), back to version 1.23
676    o fix bug in mom_vi_del2uv.F (CubedSphere part).
677    
678    checkpoint55a_post
679    o merged code to
680      * prescribe/read time-dependent open boundaries
681        (works in conjunction with exf, cal)
682      * sponge layer code for open boundaries
683      * each boundary N/S/E/W now has its own CPP option
684        (healthy for the adjoint)
685    
686    checkpoint55
687    o up-to-date adjoint of previous breaks
688      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
689      - global_ocean_ebm: adjoint still needs fix (TLM ok)
690      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
691      - carbon: * remove tr1-related adjoint verification
692                * add ptracer as control variable
693    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
694      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
695    
696    checkpoint54f_post
697    o in verification/carbin/ remove experiment related to
698      ALLOW_PASSIVE_TRACER (array tr1 etc)
699      code_ad/ input_ad/ results_ad
700    
701    o add two new packages
702      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
703        + subject to optimization (memory)
704      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
705        + subject to reordering (many GOTOs in the original code)
706        + so far opps is called for every (i,j) point, and then operates in
707          the vertical; one may want to reorder the scheme in order operate in
708          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
709          fields)
710    o overhaul of IO so that we now have flags for MDSIO and/or MNC
711      - all verification tests compile and run with linux_ia32_g77
712      - defaults are compatible with current input files--nothing
713        should change if you were not previously using MNC
714      - MNC output has been added in numerous places (eg. timeave)
715        but there are still a few writes not yet do-able with MNC
716        (this is in progress)
717      - flags now allow for either/or/both use of MDSIO and MNC and
718        documentation will soon follow
719      - numerous small formatting cleanups for ProTeX
720    o add version info (via BUILD_INFO.h) to MNC and stdout
721    
722    checkpoint54e_post
723    o add two new packages
724      - pp81 (Packanowski and Philander, 1981), Richardson number and
725        stratification dependent mixing
726      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
727      - these scheme operate in a similar manner as KPP (without ghat, of
728        course), however there is only one diffusivity that is used for both
729        temperature and salinity (and passive tracers)ç
730    o add offline package
731    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
732      provided by Stephanie Dutkiewicz
733    o genmake2: add ability to search for C compilers and cleanup test output
734      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
735    
736    checkpoint54d_post
737    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
738    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
739      leading to additional shift by 5 days each year of integration
740       (i.e. leading to considerable offset over the years)
741    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
742    o start with no AB and no initial filtering (staggerTimeStep):
743      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
744    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
745      (external loading & cpl import/export stay in forward_step.F)
746    o update coupling interface to work with new staggerTimeStep
747    o change MDSIO ptracers_pickup.
748    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
749    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
750    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
751    
752    checkpoint54c_post
753    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
754      this affects (truncation error) output.txt of test-exp:
755       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
756    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
757    o change Qnet to always be the net heat flux, (+upward).
758      affects (truncation error) output of natl_box exp.: updated
759    o define the max number of passive tracers in PTRACERS_SIZE.h
760    o start to test mnc routinely in exp0
761    o add sea-ice loading (sIceLoad) as a new forcing field.
762    
763    checkpoint54b_post
764    o add testreport "-j JOBS" option for parallel builds (tested and pretty
765       impressive on Altix and Opteron systems)
766    o diagnostics can now write NetCDF files through the mnc package
767    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
768    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
769    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
770      affects (truncation error) output of lab_sea & natl_box exp.: updated
771    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
772    
773    checkpoint54a_post
774    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
775    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
776    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
777    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
778      + internal_wave (shift in writing cg2d_ini_res)
779    checkpoint54a_pre
780    
781    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
782      - modified verification/lab_sea and natl_box_adjoint accordingly
783    
784    checkpoint54
785    checkpoint53g_post
786    o prepare splitting of thermodynamics: store convect.counter in common block
787    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
788      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
789    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
790    o new parameter "nShapS": allow to treat differently S from T (nShapT)
791    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
792    o restore adjointability
793    
794    checkpoint53f_post
795    o modifications that affect AIM experiment results (update output.txt):
796      - no advection of S at top interface Nr (pkg/generic_advdiff)
797      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
798    o AIM pkg:
799      - include stability function into surf.Flux derivative relative to Tsurf
800      - calculate clear-sky radiation & surface temp. change (for diagnostics)
801    
802    checkpoint53e_post
803    o merged cylindrical coord configuration
804    o added rotating_tank experiment
805    checkpoint53e_pre
806    
807    checkpoint53d_post
808    o faulks upgraded: re-generate output.txt that have changed:
809       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
810    o Added Bryan and Lewis, 1979, vertical diffusivity profile
811    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
812    o added Sadourny discretization of Coriolis
813      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
814      - re-enabled use of omega3 (useAbsVorticity)
815    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
816      vector-invariant equations
817      - note: does *NOT* yet use same variable visc. for no-slip BC's.
818    o recoded the lateral boundary conditions for non-hydrostatic w, this time
819      hopefully without new bugs
820      - still to do: biharmonic friction for non-hydrostatic w
821    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
822    o regenerated output for global_ocean_ebm (using -ieee)
823    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
824      of mom_common/
825      - simple re-arrangement of instructions within computing loop
826    checkpoint53d_pre
827    
828    checkpoint53c_post
829    o new version of coupler for AIM+thSIce and Ocean models
830     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
831     - land: change Evaporation of snow
832     - aim with thSIce: fix bug in snow-precip.
833    o changes to calc_gw.F
834     - bug fix for w^2 term near the bottom boundary
835     - (hopefully) improve the lateral slip boundary condtions for use with
836        partial/looped cells
837      - because the bug fix changes two verification experiments anyway (exp5
838        and plume on slope), change the lateral boundary condition from half slip
839        to the value of no_slip_sides
840    o ebm package wasnt quite up to the parallel task. Fixed that.
841    o Adjoint of EBM package + verification
842      * TLM OK
843      * ADM not sufficient accuracy yet (needs further testing)
844    
845    checkpoint53b_post
846    o Commiting new energy balance model to repository
847      * package is pkg/ebm
848      * verif. is verification/global_ocean_ebm
849      * references are in ebm_driver.F
850    C      * X. Wang, P. Stone and J. Marotzke, 1999:
851    C        Global thermohaline circulation. Part I:
852    C        Sensitivity to atmospheric moisture transport.
853    C        J. Climate 12(1), 71-82
854    C      * X. Wang, P. Stone and J. Marotzke, 1999:
855    C        Global thermohaline circulation. Part II:
856    C        Sensitivity with interactive transport.
857    C        J. Climate 12(1), 83-91
858    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
859    C        Destabilization of the thermohaline circulation
860    C        by atmospheric eddy transports.
861    C        J. Climate 7(12), 1870-1882
862    o Will need long integration testing.
863    checkpoint53b_pre
864    
865    o created pkg/mom_common in preparation for variable viscosity code
866    o renamed and split ini_mnc_io
867    o pkg/land: only liquid water can diffuse or run-off
868    o AIM using land: soil wetness availability account for snow
869    o added printMapIncludesZeros to EEPARMS namelist
870    
871    checkpoint53a_post
872    o restore TAMC compatiility for exf_constants.h
873      (no usage of _d in .h)
874    o Additional storing in KPP in an attempt to fix
875      TAMC problem with adjoint of KPP code.
876      (no success...)
877      Identical code works fine with TAF.
878    o Fixed verification/natl_box_adjoint experiments.
879      Initial conditions for Experiments 4 and 5 are now
880      set to "SEAICE_initialHEFF=0", which is more reasonable,
881      and hence gives results closer to that of Experiment 2.
882      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
883    
884    checkpoint53
885    o stable checkpoint with up to date adjoint
886      TLM tests only run for 1st grdchk at the moment. Its unclear if
887      this is a code problem or a problem with resetting code for g_
888      variables that is being autogenerated wrong.
889      Otherwise:
890       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
891       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
892         are both still in chaos following their security messes.
893    
894    checkpoint52n_post
895    o various build (mostly genmake2) changes including:
896      - ability to build/run more easily within Cygwin and MacOS X
897      - more complicated Makefiles with a stronger dependence on Gnu Make
898    o pkg/seaice modifications
899      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
900        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
901        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
902      - changed proxy for geostrophic velocity and updated
903        verification/lab_sea/results/* accordingly
904      - removed ADI dynamic solver from pkg/seaice
905      - replaced all occurrences of 1/CSTICE or 1/CSUICE
906        they caused a segmentation fault under certain circumstances
907      - removed unused field WATR
908    o bug fix in exf-package:
909      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
910         now reflect that.
911    o small fixes in the cal-package:
912      - set reference date to first of January for the 'model'-calendar
913      - failing of cal_CheckDate in cal_FullDate now actually results in a
914        warning
915    o small modifications in exf-package to increase flexibility:
916      - change climtempfreeze from a constant to a runtime parameter that
917        is specified in data.exf_clim (default = -1.9)
918      - introduce runtime parameter windstressmax (default = 2.0) that is
919        specified in data.exf
920    o fix in pkg/thsice:
921      - update Evap (Tsf changes) to be consistent with Latent heat flux
922      - maintain snow precipitation unchanged (even if Tsf >=0).
923     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
924    
925    checkpoint52m_post
926    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
927      this does not change any of the results, because myIter=0 in swfrac always
928      lead to jwtype=2 (the default anyway), but the call makes little sense
929      as a default
930    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
931    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
932      atmospheric model (AIM) to use it ; add a "slab ocean" component.
933    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
934    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
935    o extending useSingleCpuIO option to work with new exch2 I/O format
936      - old-style, missing-tile I/O is still accessible by defining CPP
937        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
938    o monitor package can write to NetCDF files and/or STDOUT
939    o fix re-definition bug in MNC_GRID_INIT_ALL()
940    o doc/api_reference added
941      - a framework for building an API Reference Manual using all
942        the "protex" comments embedded in the code
943      - see pkg/generic_advdiff, pkg/mnc for examples
944    o MNC:
945      - make myThid the last argument for all subroutines
946      - new default for the grid files: NO halos
947      - add useMNC and other run-time flags
948      - separate per-file-group handling of the unlimited dimension
949      - early initialization of MNC w/ flags read at the eeboot stage
950        and lookup tables set in initialize_fixed
951      - write all MNC output to a freshly-created directory
952    o thermodynamics sea-ice (thsice) is now tested with testreport.
953    o test exp. advect_cs: use the standard cs32 grid ; update output.
954    o Added functionality to grdchk:
955      pick global i,j,k position (or nearest wet) where to perform check.
956    
957    checkpoint52l_post
958    o new land formulation:
959      a) use ground enthalpy as prognostic variable to ensure exact
960         energy conservation.
961      b) account for water temperature and for latent heat of freezing
962         in all processes (rain, run-off, ground storage)
963      c) compute surface and ground temperature implicitly.
964    o aim_v23 modification for new land model:
965      a) Treat separately land / ocean / sea-ice surface fluxes
966         to allow implicit computation of land & sea-ice surface temp.
967      b) add snow precipitation.
968    checkpoint52l_pre
969    
970    o fix problem (when 1 tile is empty) in min/max monitor.
971    o fix bug in timeAve (u,vZetatave in common block)
972    o no restoring terms under ice for pkg/seaice
973    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
974    o bug fix for pkg/seaice pickups
975    o change MNC call locations and add coordinate attributes
976    o mask vorticity at the corner ; affects global_ocean.cs output
977    o fix ini_curvilinear_grid ; test CS experiments with mpi
978    o aim.5l_cs: modify sea-ice fraction input file ; update output
979    o exf: Adding simple range check routine for exf fields after read
980    
981    checkpoint52k_post
982    o removed top-level directory "diags"
983      - we migrated these functions to pkg/timeave a long time ago
984    o fixed bug introduced in pkg/monitor
985    o accuracy ctrlprec = 32 insuffient for gradient checks using
986      averaged fields (I/O via cost_averages)
987      -> use ctrl.h in active_file*.F to control I/O precision.
988    o paramter list of CALL ADTHE_MAIN_LOOP
989    o added initial do_the_model_io to ecco
990    o set all ...Freq to zero after cost_final
991      taveFreq, dumpFreq, pChkptFreq
992    o MAIN and ECCO differentiability restored
993    
994    checkpoint52j_post
995    o fix nchklev in tamc.h for global_ocean...
996    o Bringing flow and store directives up-to-date
997    o Really weird thing!
998      call do_the_model_io from the_main_loop with parameters
999      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1000      TAF places a faulty re-call of initialise_varia
1001      after cost_final call which should not be there!
1002    checkpoint52j_pre
1003    
1004    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1005      error messages
1006    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1007    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1008      debug output
1009    o modfied mdsio_writefield.F to handle non-global files under exch2
1010    o update AIM Cubed-Sphere exp (aim.5l_cs):
1011      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1012    o update AIM Equatorial Channel exp:
1013      use standard aim_v23 pkg and change the SST fields to be more realistic.
1014    o globalFile now works with exch2
1015    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1016      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1017    o limit timeave output for hi-res integrations
1018    
1019    checkpoint52i_post
1020    o removed CPP_EEOPTIONS.h from verification/*/code
1021    o updated the tiling for global_ocean_pressure
1022    checkpoint52i_pre
1023    
1024    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1025      the old pkg/aim).
1026    
1027    checkpoint52h_pre
1028    o shortened offending lines in exch2_send_rx?.template
1029    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1030    o genmake2: add build & execute test for NetCDF code
1031    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1032      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1033    o added useSingleCPUIO flag to monitor.F and mon_out.F
1034    o added temporary hack for sea-ice dynamics on the cube:
1035      metric terms are ignored and it is assumed that
1036      there is no sea-ice on cube faces 1, 2, 4, and 5.
1037    
1038    checkpoint52f_post
1039    o added exch2 cube routines to pkg/exch2
1040    o modified hs94.cs-32x32x5 to use it
1041    o added new grid files to hs94.cs-32x32x5
1042    checkpoint52f_pre
1043    
1044    checkpoint52e_post
1045    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1046      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1047    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1048      to work with implicit vertical advection and AB ;
1049    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1050    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1051     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1052    checkpoint52e_pre
1053    
1054    o fix bug in impldiff when Nr=1 or Nr=2.
1055    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1056    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1057    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1058      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1059    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1060    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1061    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1062    
1063  checkpoint52d_post  checkpoint52d_post
1064    o re-tiled many expts to allow comparison in multi-processor mode
1065      - updated output accordingly
1066      - changed hs94.128x64x5 to use intial T from file rather than use the
1067        random number generator
1068    o add infrastructure in model routines for fizhi and gridalt packages
1069  o change global_ocean.cs32x15 because of Pb with GM on CS-grid.  o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1070  o changes to permit hi-res, cubed-sphere, configuration  o changes to permit hi-res, cubed-sphere, configuration
1071    - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F    - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F

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