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revision 1.34 by heimbach, Tue Jan 30 20:51:26 2001 UTC revision 1.559 by jmc, Mon Oct 3 12:57:47 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    checkpoint57t_post
8    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
9    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
10      same truncation, independent of the face number: affects affects several
11      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
12    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
13      note that biharmonic viscosity + no-slip was not tested in any experiment.
14    o fix bug in non-linear free-surf side-drag ; generate new output for
15      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
16    o make mnc honor the writeBinaryPrec flag for most kinds of output
17    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
18    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
19      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
20    o add brackets in multi-terms sum to get same truncation, independent of
21      the face number (manage to get exactly same value of gU,gV at the cs-edge)
22      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
23    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
24      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
25      a maximum grid-scale Reynolds number.  Also, changes all length calculations
26      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
27      Suggested values of viscosity parameters found in mom_calc_visc.
28      Many new viscosity diagnostics available.
29    
30    checkpoint57s_post
31    o Add clearing-house for viscosity calculations, mom_calc_visc and
32      correct numerous bugs in LeithD and Smagorinsky discretizations.  
33      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
34      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
35      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
36      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
37      The Strain-Tension form is now called with useStrainTensonVisc=.true.
38      ViscAhStrain and viscAhTension are now retired.
39    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
40    o In response to JMC's bug report, genmake2 now ignores any soft-links
41      that it finds in the *current* directory when searching for files.
42      Soft-links found in any other source directories will still work as
43      they did before.
44    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
45      a C routine to unlimit the stack size
46    o mnc-ify pkg/aim snapshot vars
47    o mnc-ify pkg/land as requested by Daniel
48    o various changes to mnc including:
49      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
50      - output can now be grouped so that all files within a group
51          change the ITER portion of their names in lock-step together
52      - can now read ("global") PER-FACE (in addition to PER-TILE) files
53          and works with both EXCH1 and EXCH2 (but needs more testing)
54      - writing works for all verification test cases w/ g77 on Linux
55    
56    checkpoint57r_post
57    o make MNC variable initialization happen earlier
58    o add diagnostics for (almost) each term of the momentum Eq.
59    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
60    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
61    o remove MINIMAL_TAVE_OUTPUT option ;
62      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
63    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
64      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
65    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
66    o add time-dependent SST, SSS control
67    o cost terms in ecco/ modularized (new cost_generic.F)
68    o cost_averages routines are modularized (new cost_averagesgeneric.F)
69    o new infrastructure for seaice model vs. obs misfits in seaice/
70      * driver from the_main_loop.F is seaice_cost_driver.F
71      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
72      * gradient check in Exp. 6a of natl_box_adjoint/
73    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
74      (see README file)
75    
76    checkpoint57q_post
77    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
78    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
79      - bug was reported by Jean-Michel and Ian Fenty
80    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
81      update exp. cpl_aim+ocn output.
82    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
83      Needed for high-res. runs with large global files
84      to be able to limit tapelev size
85    o Changed some tests for adjoint:
86      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
87      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
88      * global_ocean.90x40x15/ back to default 3-level checkpointing
89    o Modifications to enable scripted COMMON to MODULE conversion
90      * verification/OpenAD/code/ has necessary scripts and description;
91      * converts, compiles and runs successfully;
92    
93    checkpoint57p_post
94    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
95    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
96      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
97    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
98    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
99      (was already the case for dissipation with mom_vecinv,
100       and also the case for grad.PhiHyd when staggered-timeStep)
101      This will allow to put dissipation out-off the AB time-stepping.
102     Unfortunately, affects truncation error. Update output of exp. that "fails"
103      (cg2d matching number) and leave the others for later: front_relax(10),
104      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
105      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
106    
107    checkpoint57o_post
108    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
109      (2) its ready to be documented during the 20050801 DocFest
110    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
111      for ideal_2D_oce and lab_sea on linux_ia32_g77
112    o set to #undef CTRL_SET_OLD_MAXCVARS_30
113      in global1x1_tot/code_seaice_adj to access indices 32, 33
114      (worth another tag)
115    
116    checkpoint57n_post
117    o adding precip control xx_precip 32
118    o adding swflux control xx_swflux 33
119    o Replacing 10 forcing penalty cost routines by 1 generic.
120    o Implementing partitioning in time-mean and variable adjustment
121      for atmos. state.
122    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
123    o in natl_box_adjoint:
124      * updated exp 1 to 10
125        (but does not have time-mean vs. variable split results yet)
126    o updated global1x1/*_seaice_adj/
127      to incorporate latest changes
128    o enable useSingleCpuIO for mdsio vector routines
129      (applies in particular to tapelev I/O)
130    o removed inefficient K-loop in all active_file*control*.F
131    
132    checkpoint57m_post
133    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
134      and advect_cs (use EXCH-2 and standard cs-32 grid files).
135    o pkg/exch2: filling of face-corner halo regions is optional
136      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
137    
138    checkpoint57l_post
139     tag before updating tutorials (pre-release-2)
140    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
141       for output and interpolation of input fields onto model grid)
142    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
143       Affects results of exp. rotating_tank ; update output.txt.
144    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
145          and taking the square quantity and/or using a fraction-weight field.
146    o fix aim_diagnostics_init.F mate numbers.
147    o add mnc output capability to diagnostics/diagstat and update
148      our cvsignore files for the ACSII output generated
149    
150    checkpoint57k_post
151    o lab_sea now uses diagnostics package and provides a suite of
152      new EXF diagnostics output.
153    
154    checkpoint57j_post
155    o exf
156      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
157        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
158        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
159      * extended diagnostics output
160        - now includes all EXF variables
161        - hs, hl moved to common block
162        - separate S/R for diagnostics, called after ctrl vector is added
163        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
164        - EXFqnet contains true Qnet (i.e. includes qsw)
165      * updated verif. lab_sea, global_with_exf
166      * Rearranging hflux (exf_mapfields -> exf_getforcing)
167        to ensure that diagnostics sees a true EXFqnet
168    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
169    o diagnostics pkg: change pointers so that 1 diagnostic can be used
170      several times with different frequencies.
171    o mnc-ify the thsice package as requested by Daniel Enderton
172      - the monitor--MNC output needs work
173      - many attributes need to be added (most are currently blank)
174    o mnc-ify theaim_v23 package as requested by Daniel Enderton
175      - many attributes need to be added (most are currently blank)
176    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
177    o add Sadourny like discretization to the 4th.O vorticity advection scheme
178    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
179      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
180         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
181    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
182     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
183    
184    checkpoint57i_post
185    o Diagnostics package was changed: diagnostic allocation is now deactivated
186      by setting an empty file name in the namelist (used to be by setting 0 frequency)
187    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
188      add 1rst Order upwind vertical Shear.
189    o add a quick fix for A/B checkpointing in OFFLINE mode
190    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
191      end-run around the C/Fortran linking horror in eesup/src/timers.F
192    o added pkg/runclock: allows user to terminate run based on wall clock
193    o added non-hydrostatic scaling parameter: nh_am2
194    o pkg/my82: futile attempt to make results compiler-independent by adding
195      some "_d 0", etc. no effect.
196    o for mnc output, fill the 'T' coordinate var with myTime and create a
197      separate 'iter' variable for iteration count
198    o pkg/diagnostics:
199      add new capability: output of Global/Regional & per-level statistics ;
200      tested against monitor output (including land & thSIce) on various exp.
201    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
202    
203    checkpoint57h_done
204      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
205      data.diagnostics, data.gchem, data.ptracers) is done.
206    
207    o pkg/diagnostics: prepare for Global/Regional statistics.
208      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
209    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
210      and rename it: DIFFERENT_MULTIPLE
211    
212    checkpoint57h_post
213    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
214    o pkg/diagnostics: change output frequency, now in seconds (instead
215      of Nb of iterations). This requires to change data.diagnostics.
216    checkpoint57h_pre
217    
218    o in mnc, let the user create the output dir if both mnc_outdir_date
219      and mnc_outdir_num are false
220    o add fflags() to pkg/diagnostics which allows one to specify, on a
221      per-file basis, the file precision [default behavior is unchanged]
222    o added diagnostics to pkg/kpp, including computation of mixed layer
223      depth based on a temperature/density criterion
224    o updated verification/natl_box to test the new pkg/kpp diagnostics
225    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
226    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
227    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
228      not mnc -- this mistake was found by JMC and is now corrected
229    
230    checkpoint57g_post
231    o add Adams-Bashforth 3rd Order time stepping:
232      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
233      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
234    checkpoint57g_pre
235    
236    o make lambda[Theta,Salt]ClimRelax spatially varying
237      (default remains spatially uniform constant based on tau)
238    o added new control variables
239      * init. uVel, vVel, etanN
240      * lambda[Theta,Salt]ClimRelax
241    o separate masks used for ctrl_pack/unpack 'from write_grid' output
242      (suggested by G. Forget)
243    
244    checkpoint57f_post
245    o add parameter "baseTime" = model base time = time at iteration zero
246      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
247      account for baseTime shift
248    o move Coriolis arrays from PARAMS.h to GRID.h
249    checkpoint57f_pre
250    
251    o mnc-ifying the seaice package
252    o introduced an alternative length scale calculation for use in the limiting
253      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
254    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
255    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
256      as well as grad(vort3).  Made it compatible with both approximate form
257      for the cubed sphere and full form of these gradients.  Added flag
258      useFullLeith to select between approximate and full form.  
259    o add "d0" in getcon.F to reduce differences between compilers/platforms
260      update output.txt of exp. fizhi-gridalt-hs
261    o change port_rand funtion to allow to set the seed.
262    o fix obscure MNC bug involving conversion between reals and integers
263      - it caused no problems with certain (eg. gcc, ifc) compilers but the
264        new version is now more standards-compliant
265    o adjoint-related modifications
266      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
267      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
268      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
269    
270    checkpoint57e_post
271    o Adding eddy stress controls a la Ferreira et al.
272    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
273    
274    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
275      update output.txt of exp. fizhi-gridalt-hs
276    o add more "Z" dimensions and associated coordinate vars to MNC
277    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
278    o parameter calendarDumps: when set, approximate months (30-31 days) and years
279      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
280      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
281      months and years.  Requires pkg/cal.
282    o diagnostics: add pickup functionality
283      - off by default for backwards compatibility
284      - current version only uses MDSIO -- MNC will be added
285    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
286    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
287    
288    checkpoint57d_post
289    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
290    o modify verification/ideal_2D_oce so that it tests the creation of mnc
291      output from the diagnostics package
292    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
293    o make genmake2 more portable by using ".$FS" instead of ".f" for more
294      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
295    o add coordinate variables to the MNC output from the diagnostics package
296    o change MNC-flags default value: true when useMNC=TRUE
297    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
298      the ability (off by default) to read the grid information using MNC
299    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
300    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
301    o do snap-shot diagnostics at the middle of the time-interval (instead of
302      at the end).
303    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
304      new test for AIM with thSIce + slab-ocean
305    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
306    o move state variable diagnostics to the beginning of the time step ;
307      (note: still needs some work specially for snap-shot diagnostics)
308      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
309    
310    checkpoint57c_post
311    o Change testing option (-ieee) to get closer agreement between g77 & ifort
312    o generate new output.txt files on faulks with g77 & the new -ieee option
313    checkpoint57c_pre
314    
315    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
316      update output.txt of exp. global_ocean.90x40x15
317    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
318      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
319    o add saltFlux(+File) forcing capability with periodicExternalForcing
320    o allow to use pkg diagnostics for GM-Redi & ThSIce output
321    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
322    o improvements for the MNC output from DIAGNOSTICS:
323      - correct handling of the unlimitied dimension
324      - all dims now have associated coordinate variables
325      - variables located at U, V, and Corner ("Z") points are now written
326        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
327        *all* data points are output
328    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
329    o added pkg/seaice/seaice_monitor.F
330    o mdsio_readfield.F can now read files visible only to master MPI process.
331    o pkg/seaice: some test code for ice-modified ocean stress
332    o exf_getffields interpolation defaults to bilinear for all scalar forcing
333      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
334      spurious negative numbers for precipitation and humidity.  Will cause
335      some small numerical differences for integrations using pkg/exf/exf_interp.F.
336    o pkg/ctrl/
337      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
338        May be enabled via doPackDiag
339      *  introduce z-scaling of
340         + gradient (doZscalePack) and
341         + control (doZscaleUnpack)
342    o pkg/mdsio/
343      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
344      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
345    
346    checkpoint57b_post
347    o simplify options in diagnostics_fill arguments (remove weird combinations)
348    o fix MNC coordinate variables so that they now contain per-face index
349      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
350      general, EXCH2 grids are only aligned to a "local" coordinate system
351    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
352    o Implement instantaneous output within pkg diagnostics:
353      setting a negative frequency in data.diagnostics produces
354     "snap-shot" output (as opposed to time-average if freq > 0)
355    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
356      NOTE: change ptracer diagnostics name: use 2 characters to work with
357            more than 9 tracers. Add also diagnostics of advect & diffus flux.
358    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
359      becomes the coordinate variable for the 'T' dimension
360    o add CF-style coordinate variables to MNC
361      - just a first cut:  numbers are meaningless on the cubesphere and
362        missing along the T axis but otherwise it works!
363    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
364    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
365    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
366      this is based directly on what the model compute, so that the content of
367      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
368    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
369    o clean up build options files for SunOS, in particular
370      - remove -traditional from xmakedepend
371      - change -xarch=v9 to -xarch=native for f77
372      - restore use of make (not gmake)
373      - add CC=gcc if using g77
374    o changes per discussion of AM, JMC, & EH3 today:
375      - move redundant "grid" variables out of "state" -- in preparation of
376        creating proper CF-style coordinate variables and in recognition
377        that any/all grid variables can be easily copied (eg. w/NCO) from
378        the grid files into any of the other NetCDF files
379      - *always* output grid variables with MDSIO (this will eventually be
380        changed)
381      - output MNC grid file if useMNC is true
382    o every instance of _END_MASTER() has been found and replaced with
383      _END_MASTER( myThid ) in order to satisfy certain picky Sun
384      preprocessors
385    o re-arrange diagnostics pkg initialisation:
386     - allow each package to extend the available diagnostics list
387     - add some checking and fix small problems (multi-threaded, ...)
388     - new S/R diagnostics_fill (replace fill_diagnostics):
389       look through the short list of active diag. (instead of the long list)
390       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
391    
392    checkpoint57a_post
393    o this set of changes restores TAMC compatibility
394      tested for global_ocean.90x40x15 adjoint on trough
395      (what a pain)
396    
397    checkpoint57a_pre
398    o some modifs in tools/build_options for sunos
399    o call ctrl_pack for ctrl at end for optimcycle=0
400    
401    checkpoint57
402    o add horizontal bi-harmonic viscosity for vertical velocity
403      - new parameter viscA4W (defaults to viscA4)
404      - affects only non-hydrostatic code
405      - to be done: no-slip lateral boundary conditions
406    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
407    o implement Implicit Vertical advection for pTracers
408    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
409      (implemented also for implicit vertical diffusion & advection)
410    o OBCS: extend application of tracer open boundary conditions
411      to a strip beyond the boundary of width Olx/Oly
412    o add call monitor to TAF set of required calls (flow directives)
413      and include in natl_box_adjoint
414    o untangle a few ifdefs related to cost, ctrl, autodiff
415      untangel a few ALLOW_ECCO_OPTIMIZATION
416    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
417      (theta2, salt2 in ecco_cost_weights)
418    
419    checkpoint56c_post
420    o OBCS as control variables
421      - update ctrl_ad_diff.list, obcs_ad_diff.list
422      - remove balance of obcs controls from default
423      - fix index bug nobcs in ctrl_init
424      - fix dummy fields filen in ctrl_pack
425      - add dummy weights for obcs
426    o lsopt: comment out fort.94 output
427    o optim:
428      - remove unnecessary header files
429      - adjusted namelists
430      - add xerbla.F to Makefile
431    o exf:
432      - multiple modifications of exf_check_range
433      - unit change in exf_init_runoff from [m/year] to [m/s]
434    o mdsio:
435      - i/o-vector change debugLevel from debLevA to debLevB
436    
437    checkpoint56b_post
438    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
439      is called from DO_THE_MODEL_IO
440      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
441      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
442      - clean up PTRACERS_WRITE_TIMEAVE a little
443    o add another verification experiment that tests both the cfc-pkg and
444      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
445      reactive tendencies treated inline with regular timestepping
446    o testreport previously did a lousy job of comparing small numbers, so
447      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
448      implemented in the little c-progam tmp_cmpnum.c which is embedded in
449      testreport.
450    o ptracers_monitor: bug fix for MPI
451    
452    checkpoint56a_post
453    o GCHEM: finish reorganizating the package
454      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
455        (introduces another 3D-array for each passive tracer, but only if
456        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
457        gchemTendency is not needed because the timestep is done separately)
458      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
459      - GCHEM is now---more or less cleanly---separate from PTRACERS
460      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
461        so clear to me how that should be done in a general way.
462    o CFC: improve formatting of output in CFC_ATMOS
463    o PTRACERS:
464      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
465        that ALL experiments with ptracers enable can be checked. This makes
466        GCHEM_MONITOR obsolete.
467      - include a runtime parameter PTRACERS_monitorFreq that defaults to
468        monitorFreq
469      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
470    o add PTRACERS (PTR0[1-5]) to testreport output
471    o exf_check_range:
472      * default changed to .TRUE.
473      * will check values for niter0 if debLevA, every timestep if debLevB
474      * STOP in exf_check_range if 'out of range'
475      * range chosen generous to allow for potential extema
476      TBD: a version with stricter range
477           permitted range would be runtime parameters
478    o GMredi:
479      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
480      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
481      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
482    o GCHEM:
483      - move call to GCHEM_FORCING_SEP, so that it is now called before
484        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
485      - introduced a useGCHEM runtime flag and applied it everywhere.
486      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
487        this flag is now only visible within GCHEM-pkg routines.
488      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
489        be replaced by a 3D array that is computed before thermodynamics; for
490        this, the tracer ID iTracer had to be included into the parameter list
491        of ptracers_forcing
492      - set up forward_step to call gchem_forcing, that will replace
493        gchem_forcing_int in ptracers_forcing
494      - cleaning up
495    o small cleaning of exch2: remove files that are also in eesupp/src
496    
497    checkpoint56
498    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
499    o mnc: cleanup "full" files--fixes out-of-memory problem
500    o ECCO-GODAE
501      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
502      * fully merged and updated from SIO code
503        windstress sign change affects
504        - exf_inscal_[u/v]stress
505        - sign of xx_tau[u/v] adjustments
506        - signs in cost_scat
507      * ctrl_get_gen: avoid update of tau[u/v] for first few days
508      * natl_box_adjoint updated and compressed
509      * 2-level checkpoint switch added
510        (tested in EXP. 1 of natl_box_adjoint)
511      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
512    o SVD
513      * first complete, non-hacked version for SVD calculations
514      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
515        performed via direct access files admtlm_vector.it????
516        (via ctrl_[un]pack)
517      * optimcycle is used for ARPACK iteration counter
518        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
519      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
520        and add linear transforms where necessary
521      * controls are initial/final SST, SSS (can be extended; need to check
522        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
523    o mdsio: filename info to both stderr, stdout
524    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
525      from sign change
526    
527    checkpoint55j_post
528    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
529      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
530    o add consistent build directories and .cvsignore files to verification
531    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
532    o make all subroutines 30 or less characters in length for certain older
533      compilers to work (a thorough search only turns up two routines in
534      pkg/ptracers)
535    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
536      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
537    
538    checkpoint55i_post
539    o change arrays for total vertical diffusivity (2.D if explicit,
540      3.D if implicit) ; each ptracer uses its own background value.
541    o added mnc/NetCDF output capability to ocn_compon_interf
542      - added bits to verification/cpl_aim+ocn so that it can run on
543        ITRDA and other clusters without the mpirun "-wd" option
544    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
545      configuration
546    o give MNC the ability to create additional files rather than
547      exceeding a specified file size limit "MNC_MAX_FILESIZE"
548      - the default is just less than 2GB which is a practical limit
549        on many systems
550    o Compute the non-local term using either KPP vertical diffusivity (=default)
551       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
552    
553    checkpoint55h_post
554    o add verification test "vermix"
555    o remove all the *_ioinc flags and replace with the single global
556      outputTypesInclusive flag
557    o allow to set a vertical profile of vertical diffusivity for T & S
558    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
559    o useMNC moved from data.mnc to data.pkg
560    
561    checkpoint55g_post
562    o Renaming carbon AD experiments to comply with testreport conventions
563    o Updating adjoint of Held-Suarez hs94.1x64x5
564    o Fixing directives for non-ECCO forward_step, after ECCO directives
565      have been fixed to avoid recomp. of do_oceanic_phys
566      Works well for global_ocean.90x40x15,
567      but recomp. issue remains for carbon
568    o Updating adjoint output for natl_box_adjoint after
569      pkg/ecco has been modified (see taga c55d_post)
570    
571    checkpoint55f_post
572    o rename to timeave_init_fixed
573    
574    checkpoint55e_post
575    o some delicate re-shuffle of store directives to avoid one
576      extra call of do_oceanic_physics
577      affects ecco_the_main_loop.F, do_oceanic_physics.F
578      checkpoint_lev1_directives.h
579    o NB: this may break global_ocean adjoint temporarily,
580      but it is clear how to fix it. Will do later, need this now.
581    
582    checkpoint55d_post
583    o ECCO specific cost function terms (up-to-date with 1x1 runs)
584    o ecco_cost_weights is modified to 1x1 runs
585    o modifs to allow observations to be read in as
586      single file or yearly files
587    o enable to read exf forcing fields as either
588      single file or yearly files (flag useExfYearlyFields)
589    checkpoint55d_pre
590    
591    o switch between 2-level and 3-level checkpointing
592    o add ability of MNC to write local and "partial" (eg. 2D slices where
593      the full 3D field is never actually stored) arrays to NetCDF files
594      with the correct (that is, the complete multi-dimensional) set of
595      array indicies
596      - used in mom_vecinv() to write the diagFreq output
597      - tested (demonstrated) in verification/aim.5l_cs
598    o further mnc-ification
599      - add verification/lab_sea to the list with mnc setups
600      - fix undefined mnc v-names in cd_code
601      - add kpp to mnc output (both snapshot and timeave)
602    o non-hydrostatic code
603      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
604        in calc_gw.F
605      - defaults to viscAh
606      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
607        friction or Leith) in non-hydrostatic mode, as long as there is
608        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
609    o pkg/cost
610      extend simple cost functions to treat time mean quantities
611      (T,U,V) via cost_accumulate_state from cost_tile
612    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
613        be 2 times larger than the minimum size the advection scheme requires.
614        now get a perfect conservation of salt in advect_cs test-exp (updated)
615    o GGL90 (Gaspar's TKE mixed layer)
616      - add horizontal diffusion of TKE, requires exchanges in
617        do_fields_blocking_exchanges, horizontal diffusivity is zero by
618        default. In OPA there is no horizontal diffusion of TKE but the
619        mixing coefficients are computed from a horizontal average of TKE of
620        6 points or so. I think that diffusion has a little more physical
621        justification.
622      - clean up ggl90_calc in the hope of reducing memory usage (this hope
623        was in vain)
624      - mask tke-variable in ggl90_init
625    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
626    o fix biharmonic diffusion on CS-grid.
627    o more obcs stuff
628      - added obcs_external_fields_load as an alternative to the EXF-pkg option
629        for reading boundary values. This routine is called from
630        obcs_prescribe_read
631      - updated obcs_check
632      - changed sponge layer relaxation parameter units for days to seconds
633      - turned off sponge layer by default
634      - changed argument list of OBCS_CALC to myTime+deltaTclock
635      - fixed about 35 bugs in obcs_external_fields_load
636    
637    checkpoint55c_post
638    o obcs stuff
639      - new runtime flags useOBCSprescribe, useOBCSbalance
640      - re-arranged obcs_calc
641      - moved exf_getobcs to obcs_prescibe_read
642        obcs_prescibe_read is called after ORLANSKI stuff
643        and independent of it (executable can contain all).
644      - updated obcs_check
645      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
646        These may be necessary only if tangential velocities are
647        prescribed at OB, not sure, needs testing.
648    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
649      which simplifies the calls and passes the ifc check-bounds test
650    
651    checkpoint55b_post
652    o add a 2D scalar, Z location, exchange_2 routine.
653    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
654      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
655      affects advect_cs results (for the wrong reason): update output.txt
656    o use a more standard discretization for biharmonic viscosity ;
657     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
658      affects results of dome set-up: update output.txt
659    o fix gad_advection.F (CubedSphere part), back to version 1.23
660    o fix bug in mom_vi_del2uv.F (CubedSphere part).
661    
662    checkpoint55a_post
663    o merged code to
664      * prescribe/read time-dependent open boundaries
665        (works in conjunction with exf, cal)
666      * sponge layer code for open boundaries
667      * each boundary N/S/E/W now has its own CPP option
668        (healthy for the adjoint)
669    
670    checkpoint55
671    o up-to-date adjoint of previous breaks
672      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
673      - global_ocean_ebm: adjoint still needs fix (TLM ok)
674      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
675      - carbon: * remove tr1-related adjoint verification
676                * add ptracer as control variable
677    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
678      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
679    
680    checkpoint54f_post
681    o in verification/carbin/ remove experiment related to
682      ALLOW_PASSIVE_TRACER (array tr1 etc)
683      code_ad/ input_ad/ results_ad
684    
685    o add two new packages
686      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
687        + subject to optimization (memory)
688      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
689        + subject to reordering (many GOTOs in the original code)
690        + so far opps is called for every (i,j) point, and then operates in
691          the vertical; one may want to reorder the scheme in order operate in
692          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
693          fields)
694    o overhaul of IO so that we now have flags for MDSIO and/or MNC
695      - all verification tests compile and run with linux_ia32_g77
696      - defaults are compatible with current input files--nothing
697        should change if you were not previously using MNC
698      - MNC output has been added in numerous places (eg. timeave)
699        but there are still a few writes not yet do-able with MNC
700        (this is in progress)
701      - flags now allow for either/or/both use of MDSIO and MNC and
702        documentation will soon follow
703      - numerous small formatting cleanups for ProTeX
704    o add version info (via BUILD_INFO.h) to MNC and stdout
705    
706    checkpoint54e_post
707    o add two new packages
708      - pp81 (Packanowski and Philander, 1981), Richardson number and
709        stratification dependent mixing
710      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
711      - these scheme operate in a similar manner as KPP (without ghat, of
712        course), however there is only one diffusivity that is used for both
713        temperature and salinity (and passive tracers)ç
714    o add offline package
715    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
716      provided by Stephanie Dutkiewicz
717    o genmake2: add ability to search for C compilers and cleanup test output
718      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
719    
720    checkpoint54d_post
721    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
722    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
723      leading to additional shift by 5 days each year of integration
724       (i.e. leading to considerable offset over the years)
725    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
726    o start with no AB and no initial filtering (staggerTimeStep):
727      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
728    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
729      (external loading & cpl import/export stay in forward_step.F)
730    o update coupling interface to work with new staggerTimeStep
731    o change MDSIO ptracers_pickup.
732    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
733    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
734    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
735    
736    checkpoint54c_post
737    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
738      this affects (truncation error) output.txt of test-exp:
739       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
740    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
741    o change Qnet to always be the net heat flux, (+upward).
742      affects (truncation error) output of natl_box exp.: updated
743    o define the max number of passive tracers in PTRACERS_SIZE.h
744    o start to test mnc routinely in exp0
745    o add sea-ice loading (sIceLoad) as a new forcing field.
746    
747    checkpoint54b_post
748    o add testreport "-j JOBS" option for parallel builds (tested and pretty
749       impressive on Altix and Opteron systems)
750    o diagnostics can now write NetCDF files through the mnc package
751    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
752    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
753    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
754      affects (truncation error) output of lab_sea & natl_box exp.: updated
755    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
756    
757    checkpoint54a_post
758    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
759    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
760    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
761    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
762      + internal_wave (shift in writing cg2d_ini_res)
763    checkpoint54a_pre
764    
765    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
766      - modified verification/lab_sea and natl_box_adjoint accordingly
767    
768    checkpoint54
769    checkpoint53g_post
770    o prepare splitting of thermodynamics: store convect.counter in common block
771    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
772      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
773    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
774    o new parameter "nShapS": allow to treat differently S from T (nShapT)
775    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
776    o restore adjointability
777    
778    checkpoint53f_post
779    o modifications that affect AIM experiment results (update output.txt):
780      - no advection of S at top interface Nr (pkg/generic_advdiff)
781      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
782    o AIM pkg:
783      - include stability function into surf.Flux derivative relative to Tsurf
784      - calculate clear-sky radiation & surface temp. change (for diagnostics)
785    
786    checkpoint53e_post
787    o merged cylindrical coord configuration
788    o added rotating_tank experiment
789    checkpoint53e_pre
790    
791    checkpoint53d_post
792    o faulks upgraded: re-generate output.txt that have changed:
793       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
794    o Added Bryan and Lewis, 1979, vertical diffusivity profile
795    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
796    o added Sadourny discretization of Coriolis
797      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
798      - re-enabled use of omega3 (useAbsVorticity)
799    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
800      vector-invariant equations
801      - note: does *NOT* yet use same variable visc. for no-slip BC's.
802    o recoded the lateral boundary conditions for non-hydrostatic w, this time
803      hopefully without new bugs
804      - still to do: biharmonic friction for non-hydrostatic w
805    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
806    o regenerated output for global_ocean_ebm (using -ieee)
807    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
808      of mom_common/
809      - simple re-arrangement of instructions within computing loop
810    checkpoint53d_pre
811    
812    checkpoint53c_post
813    o new version of coupler for AIM+thSIce and Ocean models
814     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
815     - land: change Evaporation of snow
816     - aim with thSIce: fix bug in snow-precip.
817    o changes to calc_gw.F
818     - bug fix for w^2 term near the bottom boundary
819     - (hopefully) improve the lateral slip boundary condtions for use with
820        partial/looped cells
821      - because the bug fix changes two verification experiments anyway (exp5
822        and plume on slope), change the lateral boundary condition from half slip
823        to the value of no_slip_sides
824    o ebm package wasnt quite up to the parallel task. Fixed that.
825    o Adjoint of EBM package + verification
826      * TLM OK
827      * ADM not sufficient accuracy yet (needs further testing)
828    
829    checkpoint53b_post
830    o Commiting new energy balance model to repository
831      * package is pkg/ebm
832      * verif. is verification/global_ocean_ebm
833      * references are in ebm_driver.F
834    C      * X. Wang, P. Stone and J. Marotzke, 1999:
835    C        Global thermohaline circulation. Part I:
836    C        Sensitivity to atmospheric moisture transport.
837    C        J. Climate 12(1), 71-82
838    C      * X. Wang, P. Stone and J. Marotzke, 1999:
839    C        Global thermohaline circulation. Part II:
840    C        Sensitivity with interactive transport.
841    C        J. Climate 12(1), 83-91
842    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
843    C        Destabilization of the thermohaline circulation
844    C        by atmospheric eddy transports.
845    C        J. Climate 7(12), 1870-1882
846    o Will need long integration testing.
847    checkpoint53b_pre
848    
849    o created pkg/mom_common in preparation for variable viscosity code
850    o renamed and split ini_mnc_io
851    o pkg/land: only liquid water can diffuse or run-off
852    o AIM using land: soil wetness availability account for snow
853    o added printMapIncludesZeros to EEPARMS namelist
854    
855    checkpoint53a_post
856    o restore TAMC compatiility for exf_constants.h
857      (no usage of _d in .h)
858    o Additional storing in KPP in an attempt to fix
859      TAMC problem with adjoint of KPP code.
860      (no success...)
861      Identical code works fine with TAF.
862    o Fixed verification/natl_box_adjoint experiments.
863      Initial conditions for Experiments 4 and 5 are now
864      set to "SEAICE_initialHEFF=0", which is more reasonable,
865      and hence gives results closer to that of Experiment 2.
866      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
867    
868    checkpoint53
869    o stable checkpoint with up to date adjoint
870      TLM tests only run for 1st grdchk at the moment. Its unclear if
871      this is a code problem or a problem with resetting code for g_
872      variables that is being autogenerated wrong.
873      Otherwise:
874       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
875       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
876         are both still in chaos following their security messes.
877    
878    checkpoint52n_post
879    o various build (mostly genmake2) changes including:
880      - ability to build/run more easily within Cygwin and MacOS X
881      - more complicated Makefiles with a stronger dependence on Gnu Make
882    o pkg/seaice modifications
883      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
884        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
885        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
886      - changed proxy for geostrophic velocity and updated
887        verification/lab_sea/results/* accordingly
888      - removed ADI dynamic solver from pkg/seaice
889      - replaced all occurrences of 1/CSTICE or 1/CSUICE
890        they caused a segmentation fault under certain circumstances
891      - removed unused field WATR
892    o bug fix in exf-package:
893      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
894         now reflect that.
895    o small fixes in the cal-package:
896      - set reference date to first of January for the 'model'-calendar
897      - failing of cal_CheckDate in cal_FullDate now actually results in a
898        warning
899    o small modifications in exf-package to increase flexibility:
900      - change climtempfreeze from a constant to a runtime parameter that
901        is specified in data.exf_clim (default = -1.9)
902      - introduce runtime parameter windstressmax (default = 2.0) that is
903        specified in data.exf
904    o fix in pkg/thsice:
905      - update Evap (Tsf changes) to be consistent with Latent heat flux
906      - maintain snow precipitation unchanged (even if Tsf >=0).
907     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
908    
909    checkpoint52m_post
910    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
911      this does not change any of the results, because myIter=0 in swfrac always
912      lead to jwtype=2 (the default anyway), but the call makes little sense
913      as a default
914    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
915    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
916      atmospheric model (AIM) to use it ; add a "slab ocean" component.
917    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
918    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
919    o extending useSingleCpuIO option to work with new exch2 I/O format
920      - old-style, missing-tile I/O is still accessible by defining CPP
921        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
922    o monitor package can write to NetCDF files and/or STDOUT
923    o fix re-definition bug in MNC_GRID_INIT_ALL()
924    o doc/api_reference added
925      - a framework for building an API Reference Manual using all
926        the "protex" comments embedded in the code
927      - see pkg/generic_advdiff, pkg/mnc for examples
928    o MNC:
929      - make myThid the last argument for all subroutines
930      - new default for the grid files: NO halos
931      - add useMNC and other run-time flags
932      - separate per-file-group handling of the unlimited dimension
933      - early initialization of MNC w/ flags read at the eeboot stage
934        and lookup tables set in initialize_fixed
935      - write all MNC output to a freshly-created directory
936    o thermodynamics sea-ice (thsice) is now tested with testreport.
937    o test exp. advect_cs: use the standard cs32 grid ; update output.
938    o Added functionality to grdchk:
939      pick global i,j,k position (or nearest wet) where to perform check.
940    
941    checkpoint52l_post
942    o new land formulation:
943      a) use ground enthalpy as prognostic variable to ensure exact
944         energy conservation.
945      b) account for water temperature and for latent heat of freezing
946         in all processes (rain, run-off, ground storage)
947      c) compute surface and ground temperature implicitly.
948    o aim_v23 modification for new land model:
949      a) Treat separately land / ocean / sea-ice surface fluxes
950         to allow implicit computation of land & sea-ice surface temp.
951      b) add snow precipitation.
952    checkpoint52l_pre
953    
954    o fix problem (when 1 tile is empty) in min/max monitor.
955    o fix bug in timeAve (u,vZetatave in common block)
956    o no restoring terms under ice for pkg/seaice
957    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
958    o bug fix for pkg/seaice pickups
959    o change MNC call locations and add coordinate attributes
960    o mask vorticity at the corner ; affects global_ocean.cs output
961    o fix ini_curvilinear_grid ; test CS experiments with mpi
962    o aim.5l_cs: modify sea-ice fraction input file ; update output
963    o exf: Adding simple range check routine for exf fields after read
964    
965    checkpoint52k_post
966    o removed top-level directory "diags"
967      - we migrated these functions to pkg/timeave a long time ago
968    o fixed bug introduced in pkg/monitor
969    o accuracy ctrlprec = 32 insuffient for gradient checks using
970      averaged fields (I/O via cost_averages)
971      -> use ctrl.h in active_file*.F to control I/O precision.
972    o paramter list of CALL ADTHE_MAIN_LOOP
973    o added initial do_the_model_io to ecco
974    o set all ...Freq to zero after cost_final
975      taveFreq, dumpFreq, pChkptFreq
976    o MAIN and ECCO differentiability restored
977    
978    checkpoint52j_post
979    o fix nchklev in tamc.h for global_ocean...
980    o Bringing flow and store directives up-to-date
981    o Really weird thing!
982      call do_the_model_io from the_main_loop with parameters
983      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
984      TAF places a faulty re-call of initialise_varia
985      after cost_final call which should not be there!
986    checkpoint52j_pre
987    
988    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
989      error messages
990    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
991    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
992      debug output
993    o modfied mdsio_writefield.F to handle non-global files under exch2
994    o update AIM Cubed-Sphere exp (aim.5l_cs):
995      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
996    o update AIM Equatorial Channel exp:
997      use standard aim_v23 pkg and change the SST fields to be more realistic.
998    o globalFile now works with exch2
999    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1000      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1001    o limit timeave output for hi-res integrations
1002    
1003    checkpoint52i_post
1004    o removed CPP_EEOPTIONS.h from verification/*/code
1005    o updated the tiling for global_ocean_pressure
1006    checkpoint52i_pre
1007    
1008    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1009      the old pkg/aim).
1010    
1011    checkpoint52h_pre
1012    o shortened offending lines in exch2_send_rx?.template
1013    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1014    o genmake2: add build & execute test for NetCDF code
1015    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1016      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1017    o added useSingleCPUIO flag to monitor.F and mon_out.F
1018    o added temporary hack for sea-ice dynamics on the cube:
1019      metric terms are ignored and it is assumed that
1020      there is no sea-ice on cube faces 1, 2, 4, and 5.
1021    
1022    checkpoint52f_post
1023    o added exch2 cube routines to pkg/exch2
1024    o modified hs94.cs-32x32x5 to use it
1025    o added new grid files to hs94.cs-32x32x5
1026    checkpoint52f_pre
1027    
1028    checkpoint52e_post
1029    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1030      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1031    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1032      to work with implicit vertical advection and AB ;
1033    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1034    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1035     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1036    checkpoint52e_pre
1037    
1038    o fix bug in impldiff when Nr=1 or Nr=2.
1039    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1040    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1041    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1042      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1043    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1044    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1045    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1046    
1047    checkpoint52d_post
1048    o re-tiled many expts to allow comparison in multi-processor mode
1049      - updated output accordingly
1050      - changed hs94.128x64x5 to use intial T from file rather than use the
1051        random number generator
1052    o add infrastructure in model routines for fizhi and gridalt packages
1053    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1054    o changes to permit hi-res, cubed-sphere, configuration
1055      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1056      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1057      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1058        of surface winds for the cube
1059      (A verification experiment, based on global_ocean.cs32x15, but with
1060       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1061       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1062       complete with example surface forcing files and matlab scripts to look
1063       at the output and compare it with that of global_ocean.cs32x15.)
1064    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1065       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1066       to conform to the common rule.
1067    o check-in the first version of the coupler + interfaces for multi-components
1068       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1069       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1070       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1071       - ocean and atmos. share the same horizontal grid (no interpolation).
1072       - exchanges between component and coupler is done in forward_step
1073    o new verification experiment, cpl_aim+ocn:
1074       coupled ocean - AIM atmosphere on cs32 grid.
1075    
1076    checkpoint52d_pre
1077    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1078    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1079    
1080    checkpoint52c_post
1081    o Fixing OPTIONS files for use of exf:
1082      - ALLOW_ECCO not needed
1083      - ECCO_CPPOPTIONS.h should not be included from
1084        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1085        as has been the case in the past
1086      - All cal/exf related options are currently set in
1087        single header file. Should remain so until we
1088        agree on a consistent new policy.
1089    o Removed all CPP options for cal package.
1090      cal has no more CPP options.
1091    o modified STOREs in GAD_ADVECTION
1092    o corrected key comp. for passkey
1093    
1094    checkpoint52b_post
1095    o new version: "thsice" of thermodynamic sea-ice pkg:
1096     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1097     - modify fluxes but do not change theta directly;
1098     - light cleaning of bulk_force pkg (still needed with thsice).
1099     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1100       + output_thsice.txt to test thsice & bulk_force pkgs.
1101    o put back grid & coriolis monitor output.
1102    checkpoint52b_pre
1103    
1104    o call "do_the_model_io" at the beginning (=> dump initial state)
1105    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1106    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1107      (need info on NUMBER_OF_PTRACERS)
1108    o missing PTRACERS headers in some routines
1109    o default tamc.h in pkg/autodiff supposed to crash
1110      to ensure proper customization
1111    
1112    checkpoint52a_post
1113    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1114      - moved surfaceTendencyTice from pkg/seaice to main code
1115      - subroutine FREEZE_SURFACE now limits only surface temperature
1116        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1117        => new output.txt for global_ocean.cs32x15 & global_with_exf
1118      - keep the old version of FREEZE for backward compatibility;
1119        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1120      - corresponding modifs for TAF directives
1121    o added surface flux output variables to TIMEAVE_STATVARS
1122    o time-averaged output for pkg/ptracers
1123    o fix problem with ECCO-related divided adjoint
1124      snapshot file was missing some ad-variables,
1125      but no warning issued by TAF
1126    
1127    checkpoint52a_pre
1128    o some bug fixes for #undef REAL4_IS_SLOW
1129    
1130    checkpoint52 = ecco_c52_e35
1131    o after testing adjoints of checkpoint51u_post
1132    
1133    checkpoint51u_post
1134    o this is the post-merge tag of the ecco-branch
1135      (needs another clean checkout and re-testing)
1136    o various natl_box_adjoint configs and results
1137      but no input fields
1138    o obcs adjoint not yet merged!
1139    o adding ECCO global 1x1 and 2x2 degree configs
1140    o updated/extended some store directives for seaice
1141    o pkg/ecco now containes ecco-specific part of cost function
1142    o top level routines the_main_loop, forward_step
1143      supersede those in model/src/
1144      previous input data.cost now in data.ecco
1145      (new namelist ecco_cost_nml)
1146    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1147    
1148    checkpoint51t_post
1149    o this is the pre-merge tag of the ecco-branch
1150    
1151    checkpoint51s_post
1152    o cleanup: removed various obsolete #define-s
1153    o pkg/grdchk
1154      - renamed 'ph-grd 3' to 'grad-res'
1155      - merged from ecco-branch
1156        (remaining bug fixes for obcs gradient checks)
1157      - additional high-precision output for testreport
1158        (grep for 'precision_grdchk_result')
1159    
1160    checkpoint51r_post
1161    o cleaned up or removed CPP_OPTIONS.h files
1162    o updated results for some of the tests to reflect the new
1163      optfiles (-ieee: -O0 instead of -O3)
1164    
1165    checkpoint51q_post
1166    o cd_code:
1167      - moved cd_scheme.F -> cd_code_scheme.F
1168      - separate read_checkpoint from cd_code_ini_vars.F
1169      - separated cd_code part from write_checkpoint
1170      - updated AD_SOURCE, generated .flow
1171      - added CD_CODE_VARS.h to the_main_loop
1172      - Moving cd_code specific store dir.s to pkg/cd_code
1173    o ctrl package totally restructured
1174      - pack/unpack now optional and decoupled from
1175        xx_/adxx_ I/O
1176      - ctrl_pack/unpack cleaned
1177        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1178      - confined inclusion of AD_CONFIG.h to where necessary.
1179    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1180    
1181    checkpoint51p_post
1182    o create initial cd_code package
1183      - WARNING: the initialization of fields within packages
1184        is broken because INI_FIELDS (where READ_CHECKPOINT is
1185        called) is called *before* PACKAGES_INIT_VARIABLES.
1186        This seems to be backwards since
1187        1) its important to initially zero the entire field including
1188           the "halo" region
1189        2) zeroing needs to be done *before* reading pickup info
1190           and the pickup call might or might not happen in any
1191           particular run
1192      - this needs an overhaul for R2
1193    o cleanup verification/*/code/GMREDI_OPTIONS.h
1194    o cleanup testreport
1195    
1196    checkpoint51o_post
1197    o bringing AD-related verif's up to date with genmake2
1198      - carbon/
1199      - global_ocean.90x40x15/
1200      - hs.94.1x64x5/
1201      - (front_relax/ )
1202    o (more) consistent directory structure for AD-related verif.'s
1203    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1204    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1205    o bug fix in find_alpha.F for MDJWF:
1206      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1207        change rho -> rho-rhoConst
1208      - replace call find_rho to find_rhonum
1209    o initialisation of rFlx extended to full array (required by TAF)
1210      and shifted to thermodynamics
1211    o removed PTRACERS.h in ptracers routine
1212    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1213    o Correcting initialisations for fVerU, fVerV.
1214    o helping TAF to recognize dependency on kUp for
1215      fVerU, fVerV
1216    o Replacing delZ by delR in pkg/ctrl/
1217    checkpoint51o_pre
1218    
1219    o undid all of cp51 pending some cleanups and discussion
1220    o added the [#include "AD_CONFIG.h"] statement to all files that need
1221       it for adjoint/tl #defines
1222     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1223     o removed tools/genmake since it no longer works
1224    
1225    checkpoint51n_post
1226    o modifications to make FREEZE flux visible to pkg/kpp
1227      - moved surfaceTendencyTice from pkg/seaice to main code
1228      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1229      - subroutine FREEZE now limits only surface temperature
1230        (this means new output.txt for global_ocean.90x40x15,
1231         global_ocean.cs32x15, and global_with_exf)
1232    o added surface flux output variables to TIMEAVE_STATVARS
1233    
1234    checkpoint51n_pre
1235    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1236    o added [#include "AD_CONFIG.h"] to all files that use the following
1237      defines:
1238      - ALLOW_ADJOINT_RUN
1239      - ALLOW_TANGENTLINEAR_RUN
1240      - ALLOW_ECCO_OPTIMIZATION
1241    
1242    checkpoint51m_post
1243    o incorporating changes to get TAMC/TAF working in genmake2
1244      - added new TAMC/TAF targets to the Makefile
1245      - various cleanups related to package handling
1246      - these changes should have no impact on the forward model
1247    
1248    checkpoint51l_post
1249    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1250     - faster algorithm for cal_addtime.F
1251     - higher precision arithmetic, where needed
1252     - pkg/exf *startdate variables changed from calendar date to
1253       model integration time
1254    
1255    checkpoint51l_pre
1256    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1257    o enable to apply restoring on S & T only in a latitude band.
1258    o update output (external_forcing_surf modif. change truncation errors)
1259       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1260    
1261    checkpoint51k_post
1262    o change default to: useNHMTerms=.FALSE.
1263     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1264       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1265     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1266        exp1, ideal_2D_oce
1267     - change data file of oceanic exp (leave the results unchanged for now)
1268       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1269    o set gravitySign automatically according to the vertical coordinate used
1270      (and change sign: back to "logical" value: +1 when R increases downward)
1271    o added an include barrier to the default CPP_OPTIONS.h and
1272      removed the #include "PACKAGES_CONFIG.h" from it
1273    o fix a bug in mom_fluxform (from chk51j_post)
1274    
1275    checkpoint51j_post
1276    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1277    o adjusted some flow directives (dynamics, thermodynamics)
1278    o added cubed-sphere case to test cost function
1279    o heckpoint_lev?_directives.h now include
1280      pkg-specific directives, whenever those are enabled.
1281    o Moving pkg-specific flow directives to corresponding pkg
1282      Moving pkg-specific differentiation list to corresponding pkg
1283      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1284      ---> conventions are
1285           - pkg_ad.flow
1286           - pkg_ad_diff.list
1287           - pkg_ad_check_lev?_dir.h
1288    
1289    checkpoint51i_post
1290    o merge of the branch-genmake2
1291      - knowingly breaks the older genmake
1292      - automatic generation of all ALLOW_${PKG_NAME} defines
1293      - new testreport supersedes older testscript
1294    o large number of package inclusion and header cleanups
1295    checkpoint51i_pre
1296    
1297    o new output for adjoin of global ocean vector invariant
1298    o fix for checkpoint of thermodynamic seaice and bulk_force
1299    o Steph gchem various cleanups
1300    
1301    checkpoint 51h_pre
1302    o fixed some single quotes
1303    o modify gchem pkg to be more versatile
1304    o modifications to clean up dic pkg
1305    o add pkg/cfc
1306    
1307    checkpoint51g_post
1308    o provide links for ARPACK and ADM*TLM
1309    o start removing verification/vero/
1310    o update AD-related stuff
1311      (in particular some IF-statements in model/src/ routines)
1312    o adding to verification/global_ocean.90x40x15/ adjoint of
1313      vector invariant setup
1314    
1315    checkpoint51f_post
1316    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1317    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1318      of tracer Green's fucntions for ocean inversion project.
1319    
1320    checkpoint51f_pre
1321    o Added on-the-fly spatial interpolation capability
1322        "USE_EXF_INTERPOLATION" to pkg/exf.
1323      - This is a temporary Cartesian-grid hack until
1324        the super-duper ESMF coupler becomes available.
1325      - See verification/global_with_exf/README for usage example.
1326      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1327        flags and modified pkg/seaice accordingly.
1328    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1329        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1330        non-local transport term.
1331    
1332    checkpoint51e_post
1333    o pkg/mom_vecinv:
1334      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1335      - add time-ave diagnostic of vorticity advection.
1336    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1337    o atmospheric geopotential: - include water vapor effect;
1338                                - use p^kappa in p* scaling.
1339    o land pkg: read initial state from files.
1340    o AIM : add stratospheric drag in the upper level
1341    
1342    checkpoint51d_post
1343    o change function ILNBLNK (=> last non-blank char.) to return zero
1344      (instead of the string length) when the string. char is empty
1345    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1346    o modif's to restore TAMC compatibility
1347      - avoid "_d" constructs in PARAMETER declarations
1348      - avoid interrupting lines by comment lines
1349    o Use cluster local disks for purely local I/O
1350      vs. globally visible disks needed for ctrl stuff
1351      (merged from ecco-branch)
1352      - new active_file_loc... and mdsio_..._loc routines
1353      - affected packages: autodiff, ctrl, grdchk, mdsio
1354    
1355    checkpoint51c_post
1356    o introducing integer flag debugLevel
1357      - debLevZero: suppress all output
1358      - debLevA: standard
1359      - debLevB: equivalent to current debugMode=.TRUE.
1360    o introducing pathname variable mdsioLocalDir for mdsio
1361      that can be specified at runtime
1362      (relevant for cluster I/O to local disk)
1363    `
1364    >>>checkpoint51b_post
1365    adjoint of ptracers
1366    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1367    o extended state in checkpoint_lev?, etc.
1368    o alternative ctrl/cost with tr1 or ptracer
1369    o new comlev1_bibj_ptracers
1370    o new ptracers.flow
1371    o made ptracers_forcing same as external_forcing_s
1372    o added verification for adjoint with ptracers
1373      - adm. grdchk fail so far
1374      - tlm. grdchk OK
1375      - checked tapelev/comlev recomputations: OK
1376    <<<checkpoint51b_pre
1377    
1378    checkpoint51a_post
1379    o added code for biogeochemistry package
1380      - new pkgs: dic, gchem
1381      - new subroutine in ptracers
1382    o modify code for biogeo packages
1383      - in model/src and pkg/ptracers
1384    
1385    checkpoint51
1386    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1387      - autodiff, ctrl, exf, grdchk, seaice
1388      kept separate packages
1389      - cost, ecco, obcs
1390    o updating verification/internal_wave, verification/lab_sea
1391      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1392    
1393    checkpoint50i_post
1394    o Preparing next differentiable checkpoint and sync
1395      of MAIN vs. ecco-branch
1396      - 1st step: this one is differentiable
1397      - 2nd step: next(! not this) checkpoint will have updated packages
1398                  from ecco-branch)
1399    
1400    checkpoint50h_post
1401    o new package "land": provide surface BC for AIM.
1402    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1403    o AIM: use true log-P extrapolation for near surface temp (= as in
1404        F.Molteni paper) ; update aim.5l_cs output.
1405    o New variable in PARM03 for more flexible pickups
1406    o somewhat cleaned package initialisation sequence for
1407      ctrl/ cost/ ecco/ in packages_... routines
1408    
1409    checkpoint50g_post
1410    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1411      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1412      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1413        made the default because of faster convergence than ADI
1414    
1415    checkpoint50f_post
1416    o exf totally restructured
1417      - replaced all exf_set_ routines by one generic exf_set_gen.F
1418        and made sure it's still differentiable
1419      - split exf_getffields.F into new exf_bulkformulae.F
1420      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1421      - updated adjoint/makefile and relevant verif. accordingly
1422    
1423    checkpoint50f_pre
1424     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1425          + change Evap over land. (update aim.5l_cs output)
1426     o added missing .cvsignores and made uniform across expts
1427     o changed configuration of tidal_basin_2d expt
1428     o added pkg/debug functions for tracing code in fatal crashes
1429     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1430     o new fn in pkg/monitor to stop model if solution grows too big
1431     o removed lots of single quotes from comments
1432    
1433    checkpoint50e_post
1434    o make KPP work with PTRACERS
1435     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1436       nearly a copy of kpp_transport_s
1437     - there is no analogue to SurfaceTendencyS, so I have to use
1438       gPtr(of the surface layer) instead
1439    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1440    checkpoint50e_pre
1441    
1442    checkpoint50d_post
1443    o change kpp output from multiple-record state files to single-record state
1444      files analogous to write_state.F
1445    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1446      analogous to the cg2d-related output.
1447    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1448      so that writing to internal file fn (with length 512) fails.
1449    checkpoint50d_pre
1450    
1451    checkpoint50c_post
1452    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1453    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1454    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1455    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1456    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1457    
1458    checkpoint50c_pre
1459    Merging from release1_p13:
1460    o bug fix for pkg/seaice dynamic solver
1461    o Added SEAICE_initialHEFF to pkg/seaice
1462    
1463    checkpoint50b_post
1464    o store u*,v* in gU,V instead of in guNm1,gvNm1
1465    o in order to put the momForcing out of the Adams-Bashforth:
1466      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1467      to timestep.F
1468    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1469    o re-generate output for highly sensitive test-exp:
1470       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1471    
1472    checkpoint50b_pre
1473    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1474    o corrected CPP option mismatch in exf_Bulk... functions for case
1475      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1476    
1477    checkpoint50a_post
1478    o Bug fix for merging between c50 and KPP.
1479      ikey was passed from thermodynamics to kpp_calc via
1480      common block rather than being recomputed in kpp_calc,
1481      in contradiction with new key itdkey.
1482      New key ikppkey created, and tamc.h headers updated.
1483    
1484    checkpoint50
1485    - 2nd step of merge with ecco-branch:
1486      merge changes in ecco-branch back into main trunk
1487    - bug fix in find_alpha
1488    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1489    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1490    - merged some sliced AD support routines
1491    
1492    checkpoint49
1493    merged from ecco-branch:
1494    o exf:
1495      - Enable initialisation of forcing fields to constant
1496        (runtime) values.
1497      - in exf_getffields.F
1498        Reduce i-/j-loop to interior domain, discarding overlaps.
1499        That also fixes wrong TAF-key computations for key_1, key_2
1500        with bulf formulae.
1501      - exf_init.F modify #ifdef for exf_init_evap
1502      - exf_getffieldrec.F, ctrl_getrec.F
1503        The following INT-usages are not safe:
1504          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1505          fldcount = int(fldsecs/fldperiod) + 1
1506        and were modified.
1507    o autodiff: checkpoint_lev...
1508      - updated storing for bulk formulae (some arrays were missing)
1509      - added state for seaice package
1510      - synchronized with main branch
1511    o DIVA:
1512      Modif.s in
1513      - the_main_loop.F
1514      - the_model_main.F
1515      and added cost_final_restore.F cost_final_store.F
1516      o With these changes, it is possible to fully separate
1517        the first forward run to compute the cost function (mdthe_main_loop)
1518        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1519        into separate model executions.
1520        This enables better tuning of DIVA to given queue sizes.
1521      o Loss of cost function value in consecutive DIVA runs is
1522        fixed by storing to 'costfinal' file.
1523      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1524        beginning/end of adjoint integration is accounted for.
1525      The current changes apply to TAF-1.4.26.
1526      TAF has one remaining bug, requiring one manual change
1527      (see MITgcm manual).
1528    o cal: synchronized between MAIN and ecco-branch
1529    
1530    checkpoint48i_post
1531    o Changes to restore differentiability of code w.r.t. previous tag
1532      (mostly adding new routines to make list and replacing
1533      pressure by totPhiHyd).
1534    o Updated and merged grdchk package
1535      - has both ADM and TLM checks
1536      - works for single- and multi-proc.
1537      - output cleaned
1538      - worked successfully for parallel DIVA
1539    o genmake:
1540      - Adding -platform=SP4
1541      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1542    o Modif. for DIVA:
1543      ctrl_unpack should not be called in intermediate DIVA interval.
1544      (similar thing would apply for active files such as
1545      tbar, sbar, psbar, which should not be reinitialised;
1546      only relevant for ecco-branch)
1547    
1548    checkpoint48h_post
1549    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1550    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1551    o Added SEAICE_initialHEFF to pkg/seaice
1552    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1553    
1554    checkpoint48g_post
1555    --- EOS:
1556    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1557      store total Potential in totPhyHyd for diagnostics & EOS.
1558    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1559    --- Pressure/geopotential gradient:
1560    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1561    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1562      ( changes results of global_ocean_pressure )
1563    o NLFS + z-coord.: add eta*Rho' contribution.
1564    o accurate phiHyd when using interface-W at the middle between 2 centers
1565     ( changes results of ideal_2D_oce )
1566    o includes r* 2nd term in potential gradient.
1567    
1568    checkpoint48f_post
1569    Merging from release1_p12:
1570    o Modifications for using pkg/exf with pkg/seaice
1571      - improved description of the various forcing configurations
1572      - added basic radiation bulk formulae to pkg/exf
1573      - units/sign fix for evap computation in exf_getffields.F
1574      - updated verification/global_with_exf/results/output.txt
1575    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1576      (SBO) core products, including oceanic mass, center-of-mass,
1577      angular, and bottom pressure (see pkg/sbo/README.sbo).
1578    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1579      to avoid negative values in shallow regions.
1580      - updated verification/natl_box/results/output.txt
1581      - updated verification/lab_sea/results/output.txt
1582    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1583    o Added useSingleCpuIO option (see PARAMS.h).
1584    o Updated useSingleCpuIO option in mdsio_writefield.F to
1585      work with multi-field files, e.g., for single-file pickup.
1586    o pkg/seaice:
1587      - bug fix in growth.F: QNET for no shortwave case
1588      - added HeffFile for specifying initial sea-ice thickness
1589      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1590    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1591      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1592    o pkg/seaice:
1593      - adjoint-friendly modifications
1594      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1595    
1596    checkpoint48e_post
1597    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1598    o dynamics: change definition of computational domain & adapt mom_fluxform
1599      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1600    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1601        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1602        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1603        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1604        inverted_barometer solid-body.cs-32x32x1
1605      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1606    
1607    checkpoint48d_post
1608    o in preparation for r*:
1609     a) use pre-computed gradient of hydrostatic potential:
1610        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1611     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1612        => affects results of glob_oce_pressure (different truncation error)  
1613      update output.txt of ideal_2D_oce & global_ocean_pressure
1614    
1615    checkpoint48d_pre
1616    o in preparation for r*:
1617      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1618      pass the 2 comp. of the grad. as arguments to momentum S/R.
1619      but for the moment, only used if it does not change the results.
1620    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1621    
1622    checkpoint48c_post
1623    Modifications in treatment of initial flux forcing controls
1624    to avoid extra storing of flux fields.
1625    
1626    checkpoint48c_pre
1627    o Added tidal_basin_2d experiment (currently 1D!)
1628    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1629    
1630    checkpoint48b_post
1631    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1632     (modification to pressure gradient not yet implemented)
1633    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1634      (for U & V) that are used for vertical advection of momentum.
1635    
1636    checkpoint48a_post
1637    o In preparation for r*, use temp. array to compute vertical transport
1638       in flux-form momentum pkg. => change results of few test-exp.
1639      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1640                        lab_sea, natl_box & plume_on_slope
1641    
1642    checkpoint48
1643    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1644    
1645    checkpoint47j_post
1646    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1647    o moved adexch from forward_step to addummy_in_stepping
1648    o added exch in ctrl_map_...
1649    o aveFreq.=0. at end of cost_final to avoid overwrite in
1650      reverse checkpointing loop
1651    o Yet more changes in gmredi:
1652      * adgmredi_calc_tensor
1653        avoiding all recomputation of gmredi_slope_limit
1654      * adgmredi_x/y/rtransport
1655        added flag for excessive storing to avoid recomp. of
1656        u/v/rtans, dTdx/y/z
1657        -> this is not really necessary and very memory-consuming
1658      * adgmredi_slope_psi:
1659        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1660      * gmredi_slope_limit
1661        re-activated full calculation of taperfct for case 'ac02'
1662    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1663    
1664    checkpoint47i_post
1665    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1666    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1667      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1668    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1669    o gmredi: fix few bugs.
1670    
1671    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1672    This will be a good checkpoint to plug into the ecco-branch.
1673    o few modif.'s to get latest version adjointed
1674      (mainly kick out code in ini_linear_phisurf)
1675    o modif's to run adjoint with exactConserv
1676    o case GM_BOLUS_ADVEC should be cleaned
1677      S/R gmredi_slope_psi should be cleaned
1678    o verification/carbon now has exactConserv=.TRUE.
1679    
1680    checkpoint47g_post
1681    o time-average AIM output: becomes independent from statvars time-average
1682      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1683    o After TAF bug fix:
1684      Tested adjoint of gmredi package.
1685      Tests were done with checkpoint47 rather than with latest
1686      checkpoint47f_post since the latter is broken for the adjoint
1687      verification/carbon/ contains both ADM and TLM gradient checks.
1688    Here they are, before they get changed/lost/stolen.
1689    Mostly modif.'s to fix numerical sensitivities.
1690    Gradient checks OK for
1691    - GM_taper_scheme:
1692      * clipping
1693      * ac02
1694      * linear
1695      * glw91
1696      * dm95
1697      * ldd97
1698    - GMREDI_OPTIONS:
1699      * GM_VISBECK_VARIABLE_K
1700      * GM_NON_UNITY_DIAGONAL
1701      * GM_EXTRA_DIAGONAL
1702      * GM_BOLUS_ADVEC
1703    in conjunction with data.gmredi parameters to be checked in
1704    in a few minutes under verification/carbon/code/
1705    
1706    checkpoint47f_post
1707    Merging from release1_p10:
1708    o modifications for using pkg/exf with pkg/seaice
1709      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1710        and SEAICE_EXTERNAL_FLUXES
1711      - pkg/exf CPP options EXF_READ_EVAP and
1712        EXF_NO_BULK_COMPUTATIONS
1713      - usage examples are Experiments 8 and 9 in
1714        verification/lab_sea/README
1715      - verification/lab_sea default experiment now uses
1716        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1717    
1718    checkpoint47e_post
1719    o created a tag prior to creating a branch
1720    
1721    checkpoint47d_post
1722    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1723      at the bottom boundary had an erroneous half slip boundary condition
1724    o added bottom drag and no slip boundary condition capabilities to
1725      oceanic pressure coordinates code
1726    o added new verification experiment global_ocean_pressure, this experiment is
1727      also described in the tutorial section of the manual
1728    checkpoint47d_pre
1729    
1730    checkpoint47c_post
1731    o Added a verification experiment for a global cubed-sphere ocean run
1732      -  verification/global_ocean.cubed32x32x30
1733      -  uses pkg/therm_seaice and pkg/bulk_forcing
1734    
1735    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1736    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1737      when using P-coordinate; only implemented for atmospheric config.
1738    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1739      NOTES: requires option NONLIN_FRSURF to be "#define".
1740    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1741    
1742    checkpoint47b_post
1743    Merging from release1_p9:
1744    o pkg/seaice
1745      - removed GOTO's and added taf directives
1746      - double precision constants to reduce the g77 (Linux)
1747        to F77 (SGI) differences reported in release1_p8
1748    o tools/genmake
1749      - added SGI options
1750    o verification/testscript
1751      - updated to that of checkpoint47a_post
1752    o verification/global_ocean.90x40x15/input/eedata
1753      - modified for SGI f77 compatibility
1754    o verification/lab_sea
1755      - added description of sea-ice model
1756      - added missing matlab routines
1757      - added test of thermodynamics parallelization
1758    
1759    checkpoint47a_post
1760    o new pkg: aim_v23
1761     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1762       for now, keep the same surface forcing as before.
1763     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1764     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1765     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1766    o add diagnostic of surface correction term in monitor output
1767    
1768    o bulk_force and therm_seaice
1769    - Two packages:  bulk_force (Bulk forcing)
1770      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1771    - Earlier integration from Stephaine Dutkiewicz
1772      and Patrick Heimbach.
1773    - Two ifdef statements for compile time,
1774       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1775    
1776    checkpoint47
1777    differentiable version of checkpoint46n_post
1778    o bug fix in quasihydrostaticterms
1779    o * "clean" adjoint code (in terms of extensive recomputations)
1780        can now be obtained for all GMREDI options (i.e. for
1781        - GM_VISBECK_VARIABLE_K
1782        - GM_NON_UNITY_DIAGONAL
1783        - GM_EXTRA_DIAGONAL
1784        - GM_BOLUS_ADVEC )
1785      * However, wrong gradient check problem remains unsolved.
1786      * New CPP options have been introduced for different
1787        tapering schemes
1788    o external_fields_load now part of differentiation list
1789    o pressure needs multiple storing;
1790      would be nice to have store_pressure at beginning or
1791      end of forward_step, e.g. by having phiHyd global (5-dim.)
1792      (NB: pressure is needed for certain cases in find_rho,
1793      which is also invoked through convective_adjustment).
1794    o recomputations in find_rho for cases
1795     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1796    o #define ATMOSPHERIC_LOADING should be differentiable
1797    o ini_forcing shifted to begining of initialise_varia
1798    o Incorporating QNVS line search routines into MITgcm
1799      (this is separate code, and therefore not under pkg)
1800      lsopt/, optim/
1801    o Updated verification/carbon/
1802      - #define GM_VISBECK_VARIABLE_K
1803      - GM_taper_scheme    = 'ldd97'    
1804    
1805    checkpoint46n_post
1806    Merging from release1_p8:
1807    o verification/natl_box:
1808      updating new external_fields_load routine
1809    o New package: pkg/seaice
1810      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1811      The sea-ice code is based on Hibler (1979-1980).
1812      Two sea-ice dynamic solvers, ADI and LSR, are included.
1813      In addition to computing prognostic sea-ice variables and diagnosing
1814      the forcing/external data fields that drive the ocean model,
1815      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1816      The implied surface heat flux is then stored in variable
1817      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1818      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1819      non-local transport term.  Because this call precedes model
1820      thermodynamics, temperature under sea-ice may not be "exactly" at
1821      the freezing point by the time theta is dumped or time-averaged.
1822      N.B.: fairly large differences in accuracy occur across
1823            different platforms/compilers; comparison between
1824            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1825            generated output gives:
1826       T           S           U           V
1827      C D M    c        m  s        m  s        m  s        m  s
1828      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1829      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1830      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1831    
1832      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1833    o GAD:
1834      - generated new common blocks to account for call of
1835        same gad routines with differing traceridentities
1836        (needed to modify tracerIdentity indices in GAD.h)
1837      - generated separate common blocks for case useCubedSphereExchange
1838        (Department of Futurology)
1839      - parameter lists to gmredi_?transport: added tracerIdentity
1840      - added new key indices to tamc.h
1841    o external_fields_load:
1842      - added this routine to TAF list
1843      - needed to make some common blocks global and additional storing
1844        along the same lines as exf package (checkpoint_lev?_directives.h)
1845    o exf:
1846      updated external forcing package
1847      - bug fixes carried over from ecco-branch
1848        (missing OBCS_OPTIONS.h in two routines)
1849      - enable easy to use "no forcing".
1850      - added exf I/O for atmospheric loading
1851      - added exf I/O for runoff data
1852      - transfered scaling between exf <-> MITgcm to exf namelist
1853    o Adding new verification experiment global_with_exf.
1854      This verification experiment is almost identical to the
1855      global_ocean.90x40x15 experiment, except that it uses
1856      the exf (and cal) package instead of the
1857      external_fields_load routine (cf README file).
1858    
1859    checkpoint46m_post
1860    o modified testscript to return -- when there are no lines of "%MON" output
1861    o added new flag "quasiHydrostatic" for QH mode
1862      and new routine quasihydrostaticterms()
1863    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1864      New routine: mom_u_coriolis_nh()
1865    o fixed sign of non-hydrostatic metric terms in u and v equations.
1866      Depend on correct sign of gravitySign.
1867    o added work.pc* to .cvsignore in aim directories using ifc
1868    o introduced flag for controllin non-hydrostatic metric terms
1869    o removed gravitySign from PARM04
1870    o switched to g77/ifc from pgf77 in aim experiments
1871    
1872    checkpoint46l_post
1873    o made convective adjustment work with pressure coordinates:
1874     - changed the direction of k-loop in convective_adjustment.F for the
1875       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1876     - adjusted the reference pressure k-index in convective_adjustment.F
1877     - adjusted the convection condition in convect.F (in analogy to
1878       calc_ivdc.F)
1879     - convective_adjustment no longer computes anything on the halos
1880     - removed the warnings about negative salinity from find_rho.F and
1881       find_alpha.F; instead the new routine look_for_neg_salinity, called
1882       at the beginning of find_rho, find_alpha, and find_beta, does a
1883       check of the entire slice, if CPP-option
1884       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1885    checkpoint46l_pre
1886    
1887    checkpoint46k_post
1888    o fixed the verification/global_ocean.90x40x15 experiment:
1889     - new bathymetry (the world according to A., JMC, and M.)
1890     - new initial fields and forcing fields (*.bin files)
1891     - new POLY3.COEFFS (for the next release one should switch to a full
1892       equation of state: JMD95P or MDJWF)
1893     - fixed several errors and redundancies in the data file
1894     - experiment uses looped cells
1895     - added matlab directory with diagnostic scripts for plotting of output
1896    
1897    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1898     - read AIM physics parameters from a file (data.aimphys)
1899     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1900    
1901    checkpoint46j_post
1902    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1903    o move wVel computation at the end of the time step, in S/R integr_continuity
1904    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1905    o update timeave pkg for wVel diagnostic.
1906    checkpoint46j_pre
1907    
1908    checkpoint46i_post
1909    o Clean up AIM package (and keep the results unchanged):
1910      include CPP_OPTION and use IMPLICT NONE in all routines ;
1911      declare all the variables _RL ; use _d 0 for all numerical constants.
1912      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1913    
1914    checkpoint46h_post
1915    o cleaned up the use of rhoNil and rhoConst.
1916      - rhoNil should only appear in the LINEAR equation of state, everywhere
1917        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1918        and the dynamical equations are all divided by rhoConst
1919    o introduced new parameter rhoConstFresh, a reference density of fresh
1920      water, to remove the fresh water flux's dependence on rhoNil. The default
1921      value is 999.8 kg/m^3
1922    o cleanup up external_forcing.F and external_forcing_surf.F
1923      - can now be used by both OCEANIC and OCEANICP
1924    checkpoint46h_pre
1925    
1926     Added code to convert surface volume flux (fresh water) into
1927     a mass flux when using P coordinates in the ocean (OCEANICP).
1928     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1929    
1930    checkpoint46g_post
1931    o Include a new diagnostic variable phiHydLow for the ocean model
1932      - in z-coordinates, it is the bottom pressure anomaly
1933      - in p-coordinates, it is the sea surface elevation
1934      - in both cases, these variable have global drift, reflecting the mass
1935        drift in z-coordinates and the volume drift in p-coordinates
1936      - included time averaging for phiHydLow, be aware of the drift!
1937    o depth-dependent computation of Bo_surf for pressure coordinates
1938      in the ocean (buoyancyRelation='OCEANICP')
1939      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1940        Theta, Salinity, and Pressure in the parameter list. This routine is
1941        presently contained in find_rho.F. This routine does not give the
1942        correct density for 'POLY3', which would be a z-dependent reference
1943        density.
1944    o cleaned up find_rho
1945      - removed obsolete 'eqn' from the parameter list.
1946    o added two new verification experiments: gop and goz
1947      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1948    checkpoint46g_pre
1949    
1950    checkpoint46f_post
1951    o Enable tangent linear (forward mode) gradient checks:
1952      - extended active file handling to g_... files
1953      - added TANGENT_SIMULATION to theSimulationMode
1954      - extended grdchk package accordingly
1955    o added tangent linear setup in verification/carbon/code_ftl
1956    o added adjoint setup in verification/front_relax/code_ad
1957    
1958    checkpoint46e_post
1959    o Added new equation of state -> MDJWF
1960      - EOS of McDougall et al., 2002, JAOT, submitted
1961      - caveat: the equation of state is only valid for a smaller (more
1962        realistic?) range of values than JMD95P/Z and UNESCO
1963      - added masks to the calculation of pressure in store_pressure
1964      - added more check values for density in check_eos (ini_eos.F), some of
1965        the old check values are out of the range of the MDJWF-eos, so don't
1966        expect perfect matches for those
1967    checkpoint46e_pre
1968    
1969    checkpoint46d_post
1970    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1971      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1972      case of pressure coordinates. eosType='JMD95Z' in
1973      combination with buoyancyRelation='OCEANICP' now causes an error.
1974    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1975      in find_alpha/beta.
1976    checkpoint46d_pre
1977    
1978    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1979      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1980    
1981    checkpoint46c_post
1982    o Changes necessary for ocean in p-coordinates
1983     -  Added new buoyancy relation = 'OCEANICP'
1984     -  Added new parameters = gravitySign (this used to be contained inside
1985        the factor dRdZ which I added when we first switched to R coordinates).
1986     X GM/Redi is not compatible (yet)
1987     X bottom drag and no-slip need to be debugged.
1988    checkpoint46c_pre
1989    
1990    checkpoint46b_post
1991    o Added new equation of state -> JMD95Z and JMD95P
1992      - EOS of Jackett and McDougall, 1995, JAOT
1993      - moved all EOS parameters into EOS.h
1994      - new routines ini_eos.F, store_pressure.F
1995    o Added UNESCO EOS, but not recommended because it requires
1996      in-situ temperature (see JMD95)
1997    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1998      unesco.f to be used with POLY3
1999    checkpoint46b_pre
2000    
2001    checkpoint46a_post
2002    o Added (atmospheric) pressure loading
2003      - new field in FFIELDS.h, etc...
2004      - new cpp flag ATMOSPHERIC_LOADING
2005    o Changed hFacC to _hFacC in calc_phi_hyd.F
2006    o Added SHORTWAVE_HEATING to some files for consistency
2007    checkpoint46a_pre
2008    
2009    checkpoint46
2010    further merges from release1_p5
2011    o new ctrl package
2012      - adopted from ECCO environment to enable optimization
2013      - added Eliassen Palm fluxes to controls
2014    o added Eliassen Palm flux controls to gradient check package
2015    o cost package
2016      - Compatible with new ctrl package
2017      - added Eliassen Palm cost hooks
2018      - modif's of existing cost functions
2019    o Adjoint-related bug fixes in kpp:
2020      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2021      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2022    o autodiff package
2023      - flow directives:
2024        + new for S/R do_the_model_io
2025        + enhanced for S/R checkpoint
2026        + new gmredi.flow
2027      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2028        disable adcommon.h/g_common.h by default.
2029      - fixed problem for adjoint of global_max
2030    o modified verification/carbon/
2031    o New setup for adjoint of global_ocean
2032    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2033    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2034    o incorporated hooks for sponge layer code (external_forcing.F)
2035    
2036    checkpoint45d_post
2037    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2038    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2039      (affects plume_on_slope "cg2d" output)
2040    o add new parameter deltaTfreesurf for free-surface time stepping
2041    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2042    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2043    o change phiMin in exp1 (to agree with documentation)
2044    o add new flags:
2045     - T,S forcing inside/outside Adams-Bashforth
2046     - turn off temp,salt advection and/or forcing
2047     - for each tracer, define internal flag for multiDimAdvection & A-B
2048    o monitor: change definition of KE to check conservation of Energy
2049    
2050    checkpoint45c_post
2051    o Removed f90 comments ("!")
2052    o Modified initialisations to enable exf package for MITgcm
2053      (without invoking ECCO_PACKAGE).
2054    o modifications to gradient check package (Martin Losch)
2055      - enable centered differences
2056      - modified format of standard output
2057    
2058    checkpoint45b_post
2059    o cleaned exchange calls in cg2d
2060    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2061    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2062      to configure barotropic setup (Martin Losch)
2063    o moved some initialisations within bi,bj loop in dynamics
2064      (TAF flow dependency)
2065    o in initialise_varia, moved call packages_init_variables
2066      before convective_adjustment_init
2067      (corresponding adjustment of TAF tape initialisation).
2068    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2069    
2070    checkpoint45a_post
2071    o compute Rho over the whole domain (extend iMin,jMin indices)
2072    o specific exchange for X-slice domain (case Ny=1)
2073    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2074    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2075    
2076    checkpoint44h_post = checkpoint45
2077    o Fix to restore differentiability:
2078      place at which packages_init_variables is called in
2079      initialise_varia is crucial for reverse control flow.
2080    o modifications in GMRedi to enable stable adjoint
2081      (corresponding modif's in thermodynamics, dynamics)
2082    o added missing hook for sponge layer code in external_forcing
2083    o modified test cost functions
2084    o storing in gad_advection (plus removal of write(0,*)!
2085    o missing headers TR1.h added in convective_adjustment routines
2086    o errorMessageUnit set non-equal zero in eeboot
2087      (conflict on some platforms, e.g. IBM SP3)
2088    o modified carbon verif.
2089    
2090    checkpoint44h_pre
2091    o vertical grid option: allow to put the Interface at the middle between
2092      2 cell-centers ; replace delZ in pkg/kpp by drF.
2093    o GM Advective form: Tracers are advected using the residual transport (=
2094      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2095    
2096    checkpoint44g_post
2097    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2098      results) ; ifdef missing in thermodynamics.F
2099    
2100    checkpoint44f_pre,checkpoint44f_post
2101    o added PTRACERS package
2102      This allows an arbitrary number of passive tracers to be integrated
2103      forward simultaneously with the dynamicaly model.
2104      + Implemented so far:
2105        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2106        - I/O and checkpointing
2107        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2108      + Not implemented so far:
2109        - KPP
2110        - OBCS
2111      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2112        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2113        line in data.pkg.
2114      + This package is disabled by default since it increases storage.
2115    
2116    
2117    o testscript: added -cleanup option
2118    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2119                 b) enable to filter 2D fields.
2120    
2121    checkpoint44e_pre,post
2122    o re-wrote convective adjustment to use pre-calculated weights
2123      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2124      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2125      Original calls to convect() still in place.
2126    
2127    chkpt44d_pre,post
2128    o added missing EXCLUDE_MONITOR flags
2129    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2130      (incompatible typ in MIN/MAX expressions caused problems
2131      on IBM SP3)
2132    o in genmake added variable MAKEDEPEND
2133      plus resetting for case SunOS
2134    o added timer_stats.c routine for IBM SP3
2135    o removed variables in dynamics
2136    !!! I forgot to create tag chkpt44d_pre !!!
2137    !!! But chkpt44d_pre = chkpt44c_post    !!!
2138    
2139    o real fresh water flux implemented with non-linear free-surface.
2140    
2141    chkpt44c_pre,post
2142    o few fix (mask in shap_s2, EmPmR in external_field_load,
2143      USE_NATURAL_BCS in solve_for_P);
2144    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2145    
2146    checkpoint44b_pre/_post
2147    o merge of relevant stuff from the ecco-branch:
2148      - genmake: removed $S64 overwrite for case SunOS
2149      - pkg/exf: update and corrections for field swapping and obcs
2150      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2151                  harmonized between ECCO and MITgcm
2152      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2153                      updated checkpointing_lev... lists for obcs
2154      - model/src: minor changes in forward_step, plot_field
2155                   added directive for divided adjoint in the_main_loop
2156      - pkg/mdsio: added mdsio_gl_slice
2157    
2158    o check parameters & config (chkpt44a_pre,post)
2159    o OBC and NonLin_FrSurf.
2160    
2161    checkpoint44
2162    o fix bug in mom_vi_del2uv
2163    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2164    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2165    o update AIM experiments (NCEP input files)
2166    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2167    o added some stuff for AD
2168    
2169    checkpoint43
2170    o added two new advection tests
2171    o added global 4x4 degree ocean test
2172    o added test of H&S94 with free surface on cube
2173    o some final mods for gradient check, adjoint,...
2174    
2175    checkpoint42
2176      Fixed AD-related problems:
2177    o Store directives up-to-date with re-arranged Adams-Bashforth
2178      (mainly thermodynamics.F)
2179    o New store directives for multi-dim. advection schemes
2180      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2181      * new common block and key passkey
2182      (mainly gad_advection.F)
2183    o Modified store directives for split of dynamics/thermodynamics
2184      for the case ALLOW_KPP
2185    o Cleaned argument list for timestep_tracer.F
2186    
2187    checkpoint41
2188    o re-formatted/added comments in prologues of key subroutines
2189      to work with protex
2190    
2191    checkpoint40
2192    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2193    o added FLT (floats) package from Arne along with demo. experiment
2194    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2195      implementation of forward-in-time forcing terms
2196    o more mods for non-linear free-surface including new variable
2197    o modified multi-dim method to work on cube
2198    o bug fix in KPP (from DM)
2199    
2200    checkpoint40pre9
2201    o added DST advection schemes
2202    o fix MPI bug on SGI's
2203    o modifications for non-linear free-surface
2204    o fixed conditionals for fixed flow/passive tracer only mode
2205    o added tension/strain form of stress tensor
2206    o changes to commenting of arguments for TAF/TAMC
2207    o added/updated many matlab scripts
2208    o added multi-dimensional advection method for tracers
2209      
2210    checkpoint40pre8
2211    o new package rw/
2212      Added method for dumping intermediate local arrays:
2213      mdsio_writetile - same as mdsio_writefield except works from inside
2214                        bi,bj loop
2215      mdsio_writelocal - same as mdsio_writetile except works for local
2216                         arrays
2217      write_local_r? - higher-level wrapper for mdsio_writelocal
2218      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2219      Example given at end of mom_vecinv.F that dumps some local arrays.
2220    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2221      control flux-form versus vector invariant code.
2222      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2223      or genmake -DISABLE ...
2224    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2225      (additional storing is now needed for case vecinv;
2226      currently nothing implemented to switch this storing off
2227      in case fluxform is used since no CPP flag available).
2228    
2229    checkpoint40pre7
2230    o bug fix in dynamics.F
2231      calc_viscosity called before k=1,Nr loop.
2232    o added some #ifdef's ALLOW_PASSIVE_TRACER
2233    o cleaned initialisations in ctrl_map_ini
2234      related to TAF
2235    
2236    checkpoint40pre6
2237    o split dynamics into thermodynamics & dynamics
2238    o corresponding split of calc_diffusivity into
2239      calc_diffusivity, calc_viscosity
2240      (kpp_calc_diff, kpp_calc_visc).
2241    o Added diffkr, kapgm to control variables
2242    o bug fix in gmredi_slope_limit for ldd97
2243    
2244    checkpoint40pre5
2245    o proper initialization of Adams-Bashforth time stepping
2246      + uses forward step for very first step of model (iter=0)
2247    o re-generated *all* output since almost all output is modified by this
2248      change (sorry but we've been putting this one off for about 2 years)
2249      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2250        *not* regenerated since they are already out of date and I don't
2251        want to create the impression that they are suddenly working.
2252    o removed KAP stuff for DEC's
2253    o modified/added many .cvsignore files in */code and */input
2254    o added new expt "solid-body.cs-32x32x1"
2255      + this uses an alternative form of ini_curvilinear_grid.F which
2256        is not necessarily any better than the current one...
2257    
2258    checkpoint40pre4
2259    o added re-initialisations of utrans,vtrans,rtrans in
2260      calc_common_factors which are crucial for TAF.
2261    o extended iMin,jMin range for calc_common_factors,
2262      calc_diffusivity
2263    o added option ALLOW_PASSIVE_TRACER
2264    o a few minor updates and fixes
2265    
2266    checkpoint40pre3
2267    o created calc_gtr1.F for gad package
2268    o split the_main_loop and re-introduced forward_step
2269    o some recomputations of nIter0 for TAMC
2270    
2271    checkpoint40pre2
2272    o Updated to latest branch of AJA, JMC
2273    o Added gradient check package
2274    o Added routines for passive tracer handling
2275    o Added carbon sequestration sensitivity experiment
2276    
2277    checkpoint39
2278     o Modifications and fixes to support TAMC
2279       (mainly missing or wrong directives)
2280     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2281       in addummy_in_stepping
2282     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2283     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2284     o Included following packages:
2285       cal: calendar
2286       exf: external forcing
2287       ecco: essential routines to control use of cal, exf
2288             (NB: this is not the full ECCO environment)
2289     o disabled some packages by default in genmake
2290    
2291    checkpoint38
2292     o see notes_c37_adj.txt
2293     o corrected wrong layer index in external_forcing_t
2294     o replaced the_main_loop/forward_step by the_main_loop
2295     o removed forceoutput from write_state
2296       (replaced criteria for initial/final state)
2297     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2298    
2299    checkpoint37
2300     o mdsio.F routine split and packaged in pkg/mdsio
2301       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2302        used unless genmake -disable=mdsio)
2303     o allow a more precise surface-geopotential gradient for the atmosphere
2304       taking into account the change in space of Alpha (=1/rho) at the surface.
2305     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2306       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2307     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2308       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2309       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2310     o Time-Average diagnostics defined as a pseudo package "timeave".
2311     o pickup files : old pickup (before c35) did not work with new code (c35
2312       and after) unless activating 2 commented lines in initialise-varia.
2313     o Non-Hydrostatic pickup file Pb fixed.
2314     o bug with Rigid-lid version (since c35) fixed.  
2315    
2316    checkpoint36
2317     o implement Crank-Nickelson barotropic time-stepping
2318     o recover Time-Average diagnostics
2319     o fix Pb in checkpoint (PR#19)
2320     o AIM become a standard package ; clean unused CPP_kees
2321    
2322    checkpoint35
2323     o subtantial rewrite of dynamics.f
2324     o allows staggered time-stepping
2325     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2326     o added bottom drag (linear + quadratic)
2327    
2328  checkpoint34  checkpoint34
2329   o Modified exchange routines for correct reverse simulation.   o Modified exchange routines for correct reverse simulation.
2330   o Added verification output to comply with bug fix in impldiff.F   o Added verification output to comply with bug fix in impldiff.F

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