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revision 1.107 by cheisey, Mon Dec 2 13:28:30 2002 UTC revision 1.558 by jmc, Mon Oct 3 02:06:33 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    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
8    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
9      same truncation, independent of the face number: affects affects several
10      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
11    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
12      note that biharmonic viscosity + no-slip was not tested in any experiment.
13    o fix bug in non-linear free-surf side-drag ; generate new output for
14      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
15    o make mnc honor the writeBinaryPrec flag for most kinds of output
16    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
17    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
18      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
19    o add brackets in multi-terms sum to get same truncation, independent of
20      the face number (manage to get exactly same value of gU,gV at the cs-edge)
21      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
22    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
23      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
24      a maximum grid-scale Reynolds number.  Also, changes all length calculations
25      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
26      Suggested values of viscosity parameters found in mom_calc_visc.
27      Many new viscosity diagnostics available.
28    
29    checkpoint57s_post
30    o Add clearing-house for viscosity calculations, mom_calc_visc and
31      correct numerous bugs in LeithD and Smagorinsky discretizations.  
32      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
33      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
34      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
35      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
36      The Strain-Tension form is now called with useStrainTensonVisc=.true.
37      ViscAhStrain and viscAhTension are now retired.
38    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
39    o In response to JMC's bug report, genmake2 now ignores any soft-links
40      that it finds in the *current* directory when searching for files.
41      Soft-links found in any other source directories will still work as
42      they did before.
43    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
44      a C routine to unlimit the stack size
45    o mnc-ify pkg/aim snapshot vars
46    o mnc-ify pkg/land as requested by Daniel
47    o various changes to mnc including:
48      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
49      - output can now be grouped so that all files within a group
50          change the ITER portion of their names in lock-step together
51      - can now read ("global") PER-FACE (in addition to PER-TILE) files
52          and works with both EXCH1 and EXCH2 (but needs more testing)
53      - writing works for all verification test cases w/ g77 on Linux
54    
55    checkpoint57r_post
56    o make MNC variable initialization happen earlier
57    o add diagnostics for (almost) each term of the momentum Eq.
58    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
59    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
60    o remove MINIMAL_TAVE_OUTPUT option ;
61      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
62    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
63      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
64    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
65    o add time-dependent SST, SSS control
66    o cost terms in ecco/ modularized (new cost_generic.F)
67    o cost_averages routines are modularized (new cost_averagesgeneric.F)
68    o new infrastructure for seaice model vs. obs misfits in seaice/
69      * driver from the_main_loop.F is seaice_cost_driver.F
70      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
71      * gradient check in Exp. 6a of natl_box_adjoint/
72    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
73      (see README file)
74    
75    checkpoint57q_post
76    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
77    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
78      - bug was reported by Jean-Michel and Ian Fenty
79    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
80      update exp. cpl_aim+ocn output.
81    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
82      Needed for high-res. runs with large global files
83      to be able to limit tapelev size
84    o Changed some tests for adjoint:
85      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
86      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
87      * global_ocean.90x40x15/ back to default 3-level checkpointing
88    o Modifications to enable scripted COMMON to MODULE conversion
89      * verification/OpenAD/code/ has necessary scripts and description;
90      * converts, compiles and runs successfully;
91    
92    checkpoint57p_post
93    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
94    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
95      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
96    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
97    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
98      (was already the case for dissipation with mom_vecinv,
99       and also the case for grad.PhiHyd when staggered-timeStep)
100      This will allow to put dissipation out-off the AB time-stepping.
101     Unfortunately, affects truncation error. Update output of exp. that "fails"
102      (cg2d matching number) and leave the others for later: front_relax(10),
103      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
104      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
105    
106    checkpoint57o_post
107    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
108      (2) its ready to be documented during the 20050801 DocFest
109    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
110      for ideal_2D_oce and lab_sea on linux_ia32_g77
111    o set to #undef CTRL_SET_OLD_MAXCVARS_30
112      in global1x1_tot/code_seaice_adj to access indices 32, 33
113      (worth another tag)
114    
115    checkpoint57n_post
116    o adding precip control xx_precip 32
117    o adding swflux control xx_swflux 33
118    o Replacing 10 forcing penalty cost routines by 1 generic.
119    o Implementing partitioning in time-mean and variable adjustment
120      for atmos. state.
121    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
122    o in natl_box_adjoint:
123      * updated exp 1 to 10
124        (but does not have time-mean vs. variable split results yet)
125    o updated global1x1/*_seaice_adj/
126      to incorporate latest changes
127    o enable useSingleCpuIO for mdsio vector routines
128      (applies in particular to tapelev I/O)
129    o removed inefficient K-loop in all active_file*control*.F
130    
131    checkpoint57m_post
132    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
133      and advect_cs (use EXCH-2 and standard cs-32 grid files).
134    o pkg/exch2: filling of face-corner halo regions is optional
135      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
136    
137    checkpoint57l_post
138     tag before updating tutorials (pre-release-2)
139    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
140       for output and interpolation of input fields onto model grid)
141    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
142       Affects results of exp. rotating_tank ; update output.txt.
143    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
144          and taking the square quantity and/or using a fraction-weight field.
145    o fix aim_diagnostics_init.F mate numbers.
146    o add mnc output capability to diagnostics/diagstat and update
147      our cvsignore files for the ACSII output generated
148    
149    checkpoint57k_post
150    o lab_sea now uses diagnostics package and provides a suite of
151      new EXF diagnostics output.
152    
153    checkpoint57j_post
154    o exf
155      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
156        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
157        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
158      * extended diagnostics output
159        - now includes all EXF variables
160        - hs, hl moved to common block
161        - separate S/R for diagnostics, called after ctrl vector is added
162        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
163        - EXFqnet contains true Qnet (i.e. includes qsw)
164      * updated verif. lab_sea, global_with_exf
165      * Rearranging hflux (exf_mapfields -> exf_getforcing)
166        to ensure that diagnostics sees a true EXFqnet
167    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
168    o diagnostics pkg: change pointers so that 1 diagnostic can be used
169      several times with different frequencies.
170    o mnc-ify the thsice package as requested by Daniel Enderton
171      - the monitor--MNC output needs work
172      - many attributes need to be added (most are currently blank)
173    o mnc-ify theaim_v23 package as requested by Daniel Enderton
174      - many attributes need to be added (most are currently blank)
175    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
176    o add Sadourny like discretization to the 4th.O vorticity advection scheme
177    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
178      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
179         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
180    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
181     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
182    
183    checkpoint57i_post
184    o Diagnostics package was changed: diagnostic allocation is now deactivated
185      by setting an empty file name in the namelist (used to be by setting 0 frequency)
186    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
187      add 1rst Order upwind vertical Shear.
188    o add a quick fix for A/B checkpointing in OFFLINE mode
189    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
190      end-run around the C/Fortran linking horror in eesup/src/timers.F
191    o added pkg/runclock: allows user to terminate run based on wall clock
192    o added non-hydrostatic scaling parameter: nh_am2
193    o pkg/my82: futile attempt to make results compiler-independent by adding
194      some "_d 0", etc. no effect.
195    o for mnc output, fill the 'T' coordinate var with myTime and create a
196      separate 'iter' variable for iteration count
197    o pkg/diagnostics:
198      add new capability: output of Global/Regional & per-level statistics ;
199      tested against monitor output (including land & thSIce) on various exp.
200    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
201    
202    checkpoint57h_done
203      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
204      data.diagnostics, data.gchem, data.ptracers) is done.
205    
206    o pkg/diagnostics: prepare for Global/Regional statistics.
207      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
208    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
209      and rename it: DIFFERENT_MULTIPLE
210    
211    checkpoint57h_post
212    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
213    o pkg/diagnostics: change output frequency, now in seconds (instead
214      of Nb of iterations). This requires to change data.diagnostics.
215    checkpoint57h_pre
216    
217    o in mnc, let the user create the output dir if both mnc_outdir_date
218      and mnc_outdir_num are false
219    o add fflags() to pkg/diagnostics which allows one to specify, on a
220      per-file basis, the file precision [default behavior is unchanged]
221    o added diagnostics to pkg/kpp, including computation of mixed layer
222      depth based on a temperature/density criterion
223    o updated verification/natl_box to test the new pkg/kpp diagnostics
224    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
225    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
226    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
227      not mnc -- this mistake was found by JMC and is now corrected
228    
229    checkpoint57g_post
230    o add Adams-Bashforth 3rd Order time stepping:
231      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
232      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
233    checkpoint57g_pre
234    
235    o make lambda[Theta,Salt]ClimRelax spatially varying
236      (default remains spatially uniform constant based on tau)
237    o added new control variables
238      * init. uVel, vVel, etanN
239      * lambda[Theta,Salt]ClimRelax
240    o separate masks used for ctrl_pack/unpack 'from write_grid' output
241      (suggested by G. Forget)
242    
243    checkpoint57f_post
244    o add parameter "baseTime" = model base time = time at iteration zero
245      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
246      account for baseTime shift
247    o move Coriolis arrays from PARAMS.h to GRID.h
248    checkpoint57f_pre
249    
250    o mnc-ifying the seaice package
251    o introduced an alternative length scale calculation for use in the limiting
252      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
253    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
254    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
255      as well as grad(vort3).  Made it compatible with both approximate form
256      for the cubed sphere and full form of these gradients.  Added flag
257      useFullLeith to select between approximate and full form.  
258    o add "d0" in getcon.F to reduce differences between compilers/platforms
259      update output.txt of exp. fizhi-gridalt-hs
260    o change port_rand funtion to allow to set the seed.
261    o fix obscure MNC bug involving conversion between reals and integers
262      - it caused no problems with certain (eg. gcc, ifc) compilers but the
263        new version is now more standards-compliant
264    o adjoint-related modifications
265      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
266      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
267      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
268    
269    checkpoint57e_post
270    o Adding eddy stress controls a la Ferreira et al.
271    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
272    
273    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
274      update output.txt of exp. fizhi-gridalt-hs
275    o add more "Z" dimensions and associated coordinate vars to MNC
276    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
277    o parameter calendarDumps: when set, approximate months (30-31 days) and years
278      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
279      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
280      months and years.  Requires pkg/cal.
281    o diagnostics: add pickup functionality
282      - off by default for backwards compatibility
283      - current version only uses MDSIO -- MNC will be added
284    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
285    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
286    
287    checkpoint57d_post
288    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
289    o modify verification/ideal_2D_oce so that it tests the creation of mnc
290      output from the diagnostics package
291    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
292    o make genmake2 more portable by using ".$FS" instead of ".f" for more
293      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
294    o add coordinate variables to the MNC output from the diagnostics package
295    o change MNC-flags default value: true when useMNC=TRUE
296    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
297      the ability (off by default) to read the grid information using MNC
298    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
299    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
300    o do snap-shot diagnostics at the middle of the time-interval (instead of
301      at the end).
302    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
303      new test for AIM with thSIce + slab-ocean
304    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
305    o move state variable diagnostics to the beginning of the time step ;
306      (note: still needs some work specially for snap-shot diagnostics)
307      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
308    
309    checkpoint57c_post
310    o Change testing option (-ieee) to get closer agreement between g77 & ifort
311    o generate new output.txt files on faulks with g77 & the new -ieee option
312    checkpoint57c_pre
313    
314    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
315      update output.txt of exp. global_ocean.90x40x15
316    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
317      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
318    o add saltFlux(+File) forcing capability with periodicExternalForcing
319    o allow to use pkg diagnostics for GM-Redi & ThSIce output
320    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
321    o improvements for the MNC output from DIAGNOSTICS:
322      - correct handling of the unlimitied dimension
323      - all dims now have associated coordinate variables
324      - variables located at U, V, and Corner ("Z") points are now written
325        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
326        *all* data points are output
327    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
328    o added pkg/seaice/seaice_monitor.F
329    o mdsio_readfield.F can now read files visible only to master MPI process.
330    o pkg/seaice: some test code for ice-modified ocean stress
331    o exf_getffields interpolation defaults to bilinear for all scalar forcing
332      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
333      spurious negative numbers for precipitation and humidity.  Will cause
334      some small numerical differences for integrations using pkg/exf/exf_interp.F.
335    o pkg/ctrl/
336      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
337        May be enabled via doPackDiag
338      *  introduce z-scaling of
339         + gradient (doZscalePack) and
340         + control (doZscaleUnpack)
341    o pkg/mdsio/
342      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
343      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
344    
345    checkpoint57b_post
346    o simplify options in diagnostics_fill arguments (remove weird combinations)
347    o fix MNC coordinate variables so that they now contain per-face index
348      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
349      general, EXCH2 grids are only aligned to a "local" coordinate system
350    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
351    o Implement instantaneous output within pkg diagnostics:
352      setting a negative frequency in data.diagnostics produces
353     "snap-shot" output (as opposed to time-average if freq > 0)
354    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
355      NOTE: change ptracer diagnostics name: use 2 characters to work with
356            more than 9 tracers. Add also diagnostics of advect & diffus flux.
357    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
358      becomes the coordinate variable for the 'T' dimension
359    o add CF-style coordinate variables to MNC
360      - just a first cut:  numbers are meaningless on the cubesphere and
361        missing along the T axis but otherwise it works!
362    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
363    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
364    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
365      this is based directly on what the model compute, so that the content of
366      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
367    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
368    o clean up build options files for SunOS, in particular
369      - remove -traditional from xmakedepend
370      - change -xarch=v9 to -xarch=native for f77
371      - restore use of make (not gmake)
372      - add CC=gcc if using g77
373    o changes per discussion of AM, JMC, & EH3 today:
374      - move redundant "grid" variables out of "state" -- in preparation of
375        creating proper CF-style coordinate variables and in recognition
376        that any/all grid variables can be easily copied (eg. w/NCO) from
377        the grid files into any of the other NetCDF files
378      - *always* output grid variables with MDSIO (this will eventually be
379        changed)
380      - output MNC grid file if useMNC is true
381    o every instance of _END_MASTER() has been found and replaced with
382      _END_MASTER( myThid ) in order to satisfy certain picky Sun
383      preprocessors
384    o re-arrange diagnostics pkg initialisation:
385     - allow each package to extend the available diagnostics list
386     - add some checking and fix small problems (multi-threaded, ...)
387     - new S/R diagnostics_fill (replace fill_diagnostics):
388       look through the short list of active diag. (instead of the long list)
389       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
390    
391    checkpoint57a_post
392    o this set of changes restores TAMC compatibility
393      tested for global_ocean.90x40x15 adjoint on trough
394      (what a pain)
395    
396    checkpoint57a_pre
397    o some modifs in tools/build_options for sunos
398    o call ctrl_pack for ctrl at end for optimcycle=0
399    
400    checkpoint57
401    o add horizontal bi-harmonic viscosity for vertical velocity
402      - new parameter viscA4W (defaults to viscA4)
403      - affects only non-hydrostatic code
404      - to be done: no-slip lateral boundary conditions
405    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
406    o implement Implicit Vertical advection for pTracers
407    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
408      (implemented also for implicit vertical diffusion & advection)
409    o OBCS: extend application of tracer open boundary conditions
410      to a strip beyond the boundary of width Olx/Oly
411    o add call monitor to TAF set of required calls (flow directives)
412      and include in natl_box_adjoint
413    o untangle a few ifdefs related to cost, ctrl, autodiff
414      untangel a few ALLOW_ECCO_OPTIMIZATION
415    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
416      (theta2, salt2 in ecco_cost_weights)
417    
418    checkpoint56c_post
419    o OBCS as control variables
420      - update ctrl_ad_diff.list, obcs_ad_diff.list
421      - remove balance of obcs controls from default
422      - fix index bug nobcs in ctrl_init
423      - fix dummy fields filen in ctrl_pack
424      - add dummy weights for obcs
425    o lsopt: comment out fort.94 output
426    o optim:
427      - remove unnecessary header files
428      - adjusted namelists
429      - add xerbla.F to Makefile
430    o exf:
431      - multiple modifications of exf_check_range
432      - unit change in exf_init_runoff from [m/year] to [m/s]
433    o mdsio:
434      - i/o-vector change debugLevel from debLevA to debLevB
435    
436    checkpoint56b_post
437    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
438      is called from DO_THE_MODEL_IO
439      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
440      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
441      - clean up PTRACERS_WRITE_TIMEAVE a little
442    o add another verification experiment that tests both the cfc-pkg and
443      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
444      reactive tendencies treated inline with regular timestepping
445    o testreport previously did a lousy job of comparing small numbers, so
446      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
447      implemented in the little c-progam tmp_cmpnum.c which is embedded in
448      testreport.
449    o ptracers_monitor: bug fix for MPI
450    
451    checkpoint56a_post
452    o GCHEM: finish reorganizating the package
453      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
454        (introduces another 3D-array for each passive tracer, but only if
455        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
456        gchemTendency is not needed because the timestep is done separately)
457      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
458      - GCHEM is now---more or less cleanly---separate from PTRACERS
459      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
460        so clear to me how that should be done in a general way.
461    o CFC: improve formatting of output in CFC_ATMOS
462    o PTRACERS:
463      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
464        that ALL experiments with ptracers enable can be checked. This makes
465        GCHEM_MONITOR obsolete.
466      - include a runtime parameter PTRACERS_monitorFreq that defaults to
467        monitorFreq
468      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
469    o add PTRACERS (PTR0[1-5]) to testreport output
470    o exf_check_range:
471      * default changed to .TRUE.
472      * will check values for niter0 if debLevA, every timestep if debLevB
473      * STOP in exf_check_range if 'out of range'
474      * range chosen generous to allow for potential extema
475      TBD: a version with stricter range
476           permitted range would be runtime parameters
477    o GMredi:
478      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
479      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
480      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
481    o GCHEM:
482      - move call to GCHEM_FORCING_SEP, so that it is now called before
483        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
484      - introduced a useGCHEM runtime flag and applied it everywhere.
485      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
486        this flag is now only visible within GCHEM-pkg routines.
487      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
488        be replaced by a 3D array that is computed before thermodynamics; for
489        this, the tracer ID iTracer had to be included into the parameter list
490        of ptracers_forcing
491      - set up forward_step to call gchem_forcing, that will replace
492        gchem_forcing_int in ptracers_forcing
493      - cleaning up
494    o small cleaning of exch2: remove files that are also in eesupp/src
495    
496    checkpoint56
497    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
498    o mnc: cleanup "full" files--fixes out-of-memory problem
499    o ECCO-GODAE
500      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
501      * fully merged and updated from SIO code
502        windstress sign change affects
503        - exf_inscal_[u/v]stress
504        - sign of xx_tau[u/v] adjustments
505        - signs in cost_scat
506      * ctrl_get_gen: avoid update of tau[u/v] for first few days
507      * natl_box_adjoint updated and compressed
508      * 2-level checkpoint switch added
509        (tested in EXP. 1 of natl_box_adjoint)
510      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
511    o SVD
512      * first complete, non-hacked version for SVD calculations
513      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
514        performed via direct access files admtlm_vector.it????
515        (via ctrl_[un]pack)
516      * optimcycle is used for ARPACK iteration counter
517        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
518      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
519        and add linear transforms where necessary
520      * controls are initial/final SST, SSS (can be extended; need to check
521        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
522    o mdsio: filename info to both stderr, stdout
523    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
524      from sign change
525    
526    checkpoint55j_post
527    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
528      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
529    o add consistent build directories and .cvsignore files to verification
530    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
531    o make all subroutines 30 or less characters in length for certain older
532      compilers to work (a thorough search only turns up two routines in
533      pkg/ptracers)
534    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
535      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
536    
537    checkpoint55i_post
538    o change arrays for total vertical diffusivity (2.D if explicit,
539      3.D if implicit) ; each ptracer uses its own background value.
540    o added mnc/NetCDF output capability to ocn_compon_interf
541      - added bits to verification/cpl_aim+ocn so that it can run on
542        ITRDA and other clusters without the mpirun "-wd" option
543    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
544      configuration
545    o give MNC the ability to create additional files rather than
546      exceeding a specified file size limit "MNC_MAX_FILESIZE"
547      - the default is just less than 2GB which is a practical limit
548        on many systems
549    o Compute the non-local term using either KPP vertical diffusivity (=default)
550       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
551    
552    checkpoint55h_post
553    o add verification test "vermix"
554    o remove all the *_ioinc flags and replace with the single global
555      outputTypesInclusive flag
556    o allow to set a vertical profile of vertical diffusivity for T & S
557    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
558    o useMNC moved from data.mnc to data.pkg
559    
560    checkpoint55g_post
561    o Renaming carbon AD experiments to comply with testreport conventions
562    o Updating adjoint of Held-Suarez hs94.1x64x5
563    o Fixing directives for non-ECCO forward_step, after ECCO directives
564      have been fixed to avoid recomp. of do_oceanic_phys
565      Works well for global_ocean.90x40x15,
566      but recomp. issue remains for carbon
567    o Updating adjoint output for natl_box_adjoint after
568      pkg/ecco has been modified (see taga c55d_post)
569    
570    checkpoint55f_post
571    o rename to timeave_init_fixed
572    
573    checkpoint55e_post
574    o some delicate re-shuffle of store directives to avoid one
575      extra call of do_oceanic_physics
576      affects ecco_the_main_loop.F, do_oceanic_physics.F
577      checkpoint_lev1_directives.h
578    o NB: this may break global_ocean adjoint temporarily,
579      but it is clear how to fix it. Will do later, need this now.
580    
581    checkpoint55d_post
582    o ECCO specific cost function terms (up-to-date with 1x1 runs)
583    o ecco_cost_weights is modified to 1x1 runs
584    o modifs to allow observations to be read in as
585      single file or yearly files
586    o enable to read exf forcing fields as either
587      single file or yearly files (flag useExfYearlyFields)
588    checkpoint55d_pre
589    
590    o switch between 2-level and 3-level checkpointing
591    o add ability of MNC to write local and "partial" (eg. 2D slices where
592      the full 3D field is never actually stored) arrays to NetCDF files
593      with the correct (that is, the complete multi-dimensional) set of
594      array indicies
595      - used in mom_vecinv() to write the diagFreq output
596      - tested (demonstrated) in verification/aim.5l_cs
597    o further mnc-ification
598      - add verification/lab_sea to the list with mnc setups
599      - fix undefined mnc v-names in cd_code
600      - add kpp to mnc output (both snapshot and timeave)
601    o non-hydrostatic code
602      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
603        in calc_gw.F
604      - defaults to viscAh
605      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
606        friction or Leith) in non-hydrostatic mode, as long as there is
607        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
608    o pkg/cost
609      extend simple cost functions to treat time mean quantities
610      (T,U,V) via cost_accumulate_state from cost_tile
611    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
612        be 2 times larger than the minimum size the advection scheme requires.
613        now get a perfect conservation of salt in advect_cs test-exp (updated)
614    o GGL90 (Gaspar's TKE mixed layer)
615      - add horizontal diffusion of TKE, requires exchanges in
616        do_fields_blocking_exchanges, horizontal diffusivity is zero by
617        default. In OPA there is no horizontal diffusion of TKE but the
618        mixing coefficients are computed from a horizontal average of TKE of
619        6 points or so. I think that diffusion has a little more physical
620        justification.
621      - clean up ggl90_calc in the hope of reducing memory usage (this hope
622        was in vain)
623      - mask tke-variable in ggl90_init
624    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
625    o fix biharmonic diffusion on CS-grid.
626    o more obcs stuff
627      - added obcs_external_fields_load as an alternative to the EXF-pkg option
628        for reading boundary values. This routine is called from
629        obcs_prescribe_read
630      - updated obcs_check
631      - changed sponge layer relaxation parameter units for days to seconds
632      - turned off sponge layer by default
633      - changed argument list of OBCS_CALC to myTime+deltaTclock
634      - fixed about 35 bugs in obcs_external_fields_load
635    
636    checkpoint55c_post
637    o obcs stuff
638      - new runtime flags useOBCSprescribe, useOBCSbalance
639      - re-arranged obcs_calc
640      - moved exf_getobcs to obcs_prescibe_read
641        obcs_prescibe_read is called after ORLANSKI stuff
642        and independent of it (executable can contain all).
643      - updated obcs_check
644      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
645        These may be necessary only if tangential velocities are
646        prescribed at OB, not sure, needs testing.
647    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
648      which simplifies the calls and passes the ifc check-bounds test
649    
650    checkpoint55b_post
651    o add a 2D scalar, Z location, exchange_2 routine.
652    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
653      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
654      affects advect_cs results (for the wrong reason): update output.txt
655    o use a more standard discretization for biharmonic viscosity ;
656     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
657      affects results of dome set-up: update output.txt
658    o fix gad_advection.F (CubedSphere part), back to version 1.23
659    o fix bug in mom_vi_del2uv.F (CubedSphere part).
660    
661    checkpoint55a_post
662    o merged code to
663      * prescribe/read time-dependent open boundaries
664        (works in conjunction with exf, cal)
665      * sponge layer code for open boundaries
666      * each boundary N/S/E/W now has its own CPP option
667        (healthy for the adjoint)
668    
669    checkpoint55
670    o up-to-date adjoint of previous breaks
671      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
672      - global_ocean_ebm: adjoint still needs fix (TLM ok)
673      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
674      - carbon: * remove tr1-related adjoint verification
675                * add ptracer as control variable
676    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
677      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
678    
679    checkpoint54f_post
680    o in verification/carbin/ remove experiment related to
681      ALLOW_PASSIVE_TRACER (array tr1 etc)
682      code_ad/ input_ad/ results_ad
683    
684    o add two new packages
685      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
686        + subject to optimization (memory)
687      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
688        + subject to reordering (many GOTOs in the original code)
689        + so far opps is called for every (i,j) point, and then operates in
690          the vertical; one may want to reorder the scheme in order operate in
691          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
692          fields)
693    o overhaul of IO so that we now have flags for MDSIO and/or MNC
694      - all verification tests compile and run with linux_ia32_g77
695      - defaults are compatible with current input files--nothing
696        should change if you were not previously using MNC
697      - MNC output has been added in numerous places (eg. timeave)
698        but there are still a few writes not yet do-able with MNC
699        (this is in progress)
700      - flags now allow for either/or/both use of MDSIO and MNC and
701        documentation will soon follow
702      - numerous small formatting cleanups for ProTeX
703    o add version info (via BUILD_INFO.h) to MNC and stdout
704    
705    checkpoint54e_post
706    o add two new packages
707      - pp81 (Packanowski and Philander, 1981), Richardson number and
708        stratification dependent mixing
709      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
710      - these scheme operate in a similar manner as KPP (without ghat, of
711        course), however there is only one diffusivity that is used for both
712        temperature and salinity (and passive tracers)ç
713    o add offline package
714    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
715      provided by Stephanie Dutkiewicz
716    o genmake2: add ability to search for C compilers and cleanup test output
717      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
718    
719    checkpoint54d_post
720    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
721    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
722      leading to additional shift by 5 days each year of integration
723       (i.e. leading to considerable offset over the years)
724    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
725    o start with no AB and no initial filtering (staggerTimeStep):
726      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
727    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
728      (external loading & cpl import/export stay in forward_step.F)
729    o update coupling interface to work with new staggerTimeStep
730    o change MDSIO ptracers_pickup.
731    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
732    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
733    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
734    
735    checkpoint54c_post
736    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
737      this affects (truncation error) output.txt of test-exp:
738       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
739    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
740    o change Qnet to always be the net heat flux, (+upward).
741      affects (truncation error) output of natl_box exp.: updated
742    o define the max number of passive tracers in PTRACERS_SIZE.h
743    o start to test mnc routinely in exp0
744    o add sea-ice loading (sIceLoad) as a new forcing field.
745    
746    checkpoint54b_post
747    o add testreport "-j JOBS" option for parallel builds (tested and pretty
748       impressive on Altix and Opteron systems)
749    o diagnostics can now write NetCDF files through the mnc package
750    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
751    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
752    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
753      affects (truncation error) output of lab_sea & natl_box exp.: updated
754    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
755    
756    checkpoint54a_post
757    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
758    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
759    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
760    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
761      + internal_wave (shift in writing cg2d_ini_res)
762    checkpoint54a_pre
763    
764    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
765      - modified verification/lab_sea and natl_box_adjoint accordingly
766    
767    checkpoint54
768    checkpoint53g_post
769    o prepare splitting of thermodynamics: store convect.counter in common block
770    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
771      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
772    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
773    o new parameter "nShapS": allow to treat differently S from T (nShapT)
774    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
775    o restore adjointability
776    
777    checkpoint53f_post
778    o modifications that affect AIM experiment results (update output.txt):
779      - no advection of S at top interface Nr (pkg/generic_advdiff)
780      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
781    o AIM pkg:
782      - include stability function into surf.Flux derivative relative to Tsurf
783      - calculate clear-sky radiation & surface temp. change (for diagnostics)
784    
785    checkpoint53e_post
786    o merged cylindrical coord configuration
787    o added rotating_tank experiment
788    checkpoint53e_pre
789    
790    checkpoint53d_post
791    o faulks upgraded: re-generate output.txt that have changed:
792       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
793    o Added Bryan and Lewis, 1979, vertical diffusivity profile
794    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
795    o added Sadourny discretization of Coriolis
796      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
797      - re-enabled use of omega3 (useAbsVorticity)
798    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
799      vector-invariant equations
800      - note: does *NOT* yet use same variable visc. for no-slip BC's.
801    o recoded the lateral boundary conditions for non-hydrostatic w, this time
802      hopefully without new bugs
803      - still to do: biharmonic friction for non-hydrostatic w
804    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
805    o regenerated output for global_ocean_ebm (using -ieee)
806    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
807      of mom_common/
808      - simple re-arrangement of instructions within computing loop
809    checkpoint53d_pre
810    
811    checkpoint53c_post
812    o new version of coupler for AIM+thSIce and Ocean models
813     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
814     - land: change Evaporation of snow
815     - aim with thSIce: fix bug in snow-precip.
816    o changes to calc_gw.F
817     - bug fix for w^2 term near the bottom boundary
818     - (hopefully) improve the lateral slip boundary condtions for use with
819        partial/looped cells
820      - because the bug fix changes two verification experiments anyway (exp5
821        and plume on slope), change the lateral boundary condition from half slip
822        to the value of no_slip_sides
823    o ebm package wasnt quite up to the parallel task. Fixed that.
824    o Adjoint of EBM package + verification
825      * TLM OK
826      * ADM not sufficient accuracy yet (needs further testing)
827    
828    checkpoint53b_post
829    o Commiting new energy balance model to repository
830      * package is pkg/ebm
831      * verif. is verification/global_ocean_ebm
832      * references are in ebm_driver.F
833    C      * X. Wang, P. Stone and J. Marotzke, 1999:
834    C        Global thermohaline circulation. Part I:
835    C        Sensitivity to atmospheric moisture transport.
836    C        J. Climate 12(1), 71-82
837    C      * X. Wang, P. Stone and J. Marotzke, 1999:
838    C        Global thermohaline circulation. Part II:
839    C        Sensitivity with interactive transport.
840    C        J. Climate 12(1), 83-91
841    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
842    C        Destabilization of the thermohaline circulation
843    C        by atmospheric eddy transports.
844    C        J. Climate 7(12), 1870-1882
845    o Will need long integration testing.
846    checkpoint53b_pre
847    
848    o created pkg/mom_common in preparation for variable viscosity code
849    o renamed and split ini_mnc_io
850    o pkg/land: only liquid water can diffuse or run-off
851    o AIM using land: soil wetness availability account for snow
852    o added printMapIncludesZeros to EEPARMS namelist
853    
854    checkpoint53a_post
855    o restore TAMC compatiility for exf_constants.h
856      (no usage of _d in .h)
857    o Additional storing in KPP in an attempt to fix
858      TAMC problem with adjoint of KPP code.
859      (no success...)
860      Identical code works fine with TAF.
861    o Fixed verification/natl_box_adjoint experiments.
862      Initial conditions for Experiments 4 and 5 are now
863      set to "SEAICE_initialHEFF=0", which is more reasonable,
864      and hence gives results closer to that of Experiment 2.
865      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
866    
867    checkpoint53
868    o stable checkpoint with up to date adjoint
869      TLM tests only run for 1st grdchk at the moment. Its unclear if
870      this is a code problem or a problem with resetting code for g_
871      variables that is being autogenerated wrong.
872      Otherwise:
873       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
874       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
875         are both still in chaos following their security messes.
876    
877    checkpoint52n_post
878    o various build (mostly genmake2) changes including:
879      - ability to build/run more easily within Cygwin and MacOS X
880      - more complicated Makefiles with a stronger dependence on Gnu Make
881    o pkg/seaice modifications
882      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
883        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
884        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
885      - changed proxy for geostrophic velocity and updated
886        verification/lab_sea/results/* accordingly
887      - removed ADI dynamic solver from pkg/seaice
888      - replaced all occurrences of 1/CSTICE or 1/CSUICE
889        they caused a segmentation fault under certain circumstances
890      - removed unused field WATR
891    o bug fix in exf-package:
892      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
893         now reflect that.
894    o small fixes in the cal-package:
895      - set reference date to first of January for the 'model'-calendar
896      - failing of cal_CheckDate in cal_FullDate now actually results in a
897        warning
898    o small modifications in exf-package to increase flexibility:
899      - change climtempfreeze from a constant to a runtime parameter that
900        is specified in data.exf_clim (default = -1.9)
901      - introduce runtime parameter windstressmax (default = 2.0) that is
902        specified in data.exf
903    o fix in pkg/thsice:
904      - update Evap (Tsf changes) to be consistent with Latent heat flux
905      - maintain snow precipitation unchanged (even if Tsf >=0).
906     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
907    
908    checkpoint52m_post
909    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
910      this does not change any of the results, because myIter=0 in swfrac always
911      lead to jwtype=2 (the default anyway), but the call makes little sense
912      as a default
913    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
914    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
915      atmospheric model (AIM) to use it ; add a "slab ocean" component.
916    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
917    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
918    o extending useSingleCpuIO option to work with new exch2 I/O format
919      - old-style, missing-tile I/O is still accessible by defining CPP
920        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
921    o monitor package can write to NetCDF files and/or STDOUT
922    o fix re-definition bug in MNC_GRID_INIT_ALL()
923    o doc/api_reference added
924      - a framework for building an API Reference Manual using all
925        the "protex" comments embedded in the code
926      - see pkg/generic_advdiff, pkg/mnc for examples
927    o MNC:
928      - make myThid the last argument for all subroutines
929      - new default for the grid files: NO halos
930      - add useMNC and other run-time flags
931      - separate per-file-group handling of the unlimited dimension
932      - early initialization of MNC w/ flags read at the eeboot stage
933        and lookup tables set in initialize_fixed
934      - write all MNC output to a freshly-created directory
935    o thermodynamics sea-ice (thsice) is now tested with testreport.
936    o test exp. advect_cs: use the standard cs32 grid ; update output.
937    o Added functionality to grdchk:
938      pick global i,j,k position (or nearest wet) where to perform check.
939    
940    checkpoint52l_post
941    o new land formulation:
942      a) use ground enthalpy as prognostic variable to ensure exact
943         energy conservation.
944      b) account for water temperature and for latent heat of freezing
945         in all processes (rain, run-off, ground storage)
946      c) compute surface and ground temperature implicitly.
947    o aim_v23 modification for new land model:
948      a) Treat separately land / ocean / sea-ice surface fluxes
949         to allow implicit computation of land & sea-ice surface temp.
950      b) add snow precipitation.
951    checkpoint52l_pre
952    
953    o fix problem (when 1 tile is empty) in min/max monitor.
954    o fix bug in timeAve (u,vZetatave in common block)
955    o no restoring terms under ice for pkg/seaice
956    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
957    o bug fix for pkg/seaice pickups
958    o change MNC call locations and add coordinate attributes
959    o mask vorticity at the corner ; affects global_ocean.cs output
960    o fix ini_curvilinear_grid ; test CS experiments with mpi
961    o aim.5l_cs: modify sea-ice fraction input file ; update output
962    o exf: Adding simple range check routine for exf fields after read
963    
964    checkpoint52k_post
965    o removed top-level directory "diags"
966      - we migrated these functions to pkg/timeave a long time ago
967    o fixed bug introduced in pkg/monitor
968    o accuracy ctrlprec = 32 insuffient for gradient checks using
969      averaged fields (I/O via cost_averages)
970      -> use ctrl.h in active_file*.F to control I/O precision.
971    o paramter list of CALL ADTHE_MAIN_LOOP
972    o added initial do_the_model_io to ecco
973    o set all ...Freq to zero after cost_final
974      taveFreq, dumpFreq, pChkptFreq
975    o MAIN and ECCO differentiability restored
976    
977    checkpoint52j_post
978    o fix nchklev in tamc.h for global_ocean...
979    o Bringing flow and store directives up-to-date
980    o Really weird thing!
981      call do_the_model_io from the_main_loop with parameters
982      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
983      TAF places a faulty re-call of initialise_varia
984      after cost_final call which should not be there!
985    checkpoint52j_pre
986    
987    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
988      error messages
989    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
990    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
991      debug output
992    o modfied mdsio_writefield.F to handle non-global files under exch2
993    o update AIM Cubed-Sphere exp (aim.5l_cs):
994      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
995    o update AIM Equatorial Channel exp:
996      use standard aim_v23 pkg and change the SST fields to be more realistic.
997    o globalFile now works with exch2
998    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
999      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1000    o limit timeave output for hi-res integrations
1001    
1002    checkpoint52i_post
1003    o removed CPP_EEOPTIONS.h from verification/*/code
1004    o updated the tiling for global_ocean_pressure
1005    checkpoint52i_pre
1006    
1007    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1008      the old pkg/aim).
1009    
1010    checkpoint52h_pre
1011    o shortened offending lines in exch2_send_rx?.template
1012    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1013    o genmake2: add build & execute test for NetCDF code
1014    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1015      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1016    o added useSingleCPUIO flag to monitor.F and mon_out.F
1017    o added temporary hack for sea-ice dynamics on the cube:
1018      metric terms are ignored and it is assumed that
1019      there is no sea-ice on cube faces 1, 2, 4, and 5.
1020    
1021    checkpoint52f_post
1022    o added exch2 cube routines to pkg/exch2
1023    o modified hs94.cs-32x32x5 to use it
1024    o added new grid files to hs94.cs-32x32x5
1025    checkpoint52f_pre
1026    
1027    checkpoint52e_post
1028    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1029      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1030    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1031      to work with implicit vertical advection and AB ;
1032    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1033    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1034     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1035    checkpoint52e_pre
1036    
1037    o fix bug in impldiff when Nr=1 or Nr=2.
1038    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1039    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1040    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1041      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1042    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1043    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1044    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1045    
1046    checkpoint52d_post
1047    o re-tiled many expts to allow comparison in multi-processor mode
1048      - updated output accordingly
1049      - changed hs94.128x64x5 to use intial T from file rather than use the
1050        random number generator
1051    o add infrastructure in model routines for fizhi and gridalt packages
1052    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1053    o changes to permit hi-res, cubed-sphere, configuration
1054      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1055      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1056      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1057        of surface winds for the cube
1058      (A verification experiment, based on global_ocean.cs32x15, but with
1059       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1060       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1061       complete with example surface forcing files and matlab scripts to look
1062       at the output and compare it with that of global_ocean.cs32x15.)
1063    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1064       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1065       to conform to the common rule.
1066    o check-in the first version of the coupler + interfaces for multi-components
1067       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1068       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1069       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1070       - ocean and atmos. share the same horizontal grid (no interpolation).
1071       - exchanges between component and coupler is done in forward_step
1072    o new verification experiment, cpl_aim+ocn:
1073       coupled ocean - AIM atmosphere on cs32 grid.
1074    
1075    checkpoint52d_pre
1076    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1077    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1078    
1079    checkpoint52c_post
1080    o Fixing OPTIONS files for use of exf:
1081      - ALLOW_ECCO not needed
1082      - ECCO_CPPOPTIONS.h should not be included from
1083        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1084        as has been the case in the past
1085      - All cal/exf related options are currently set in
1086        single header file. Should remain so until we
1087        agree on a consistent new policy.
1088    o Removed all CPP options for cal package.
1089      cal has no more CPP options.
1090    o modified STOREs in GAD_ADVECTION
1091    o corrected key comp. for passkey
1092    
1093    checkpoint52b_post
1094    o new version: "thsice" of thermodynamic sea-ice pkg:
1095     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1096     - modify fluxes but do not change theta directly;
1097     - light cleaning of bulk_force pkg (still needed with thsice).
1098     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1099       + output_thsice.txt to test thsice & bulk_force pkgs.
1100    o put back grid & coriolis monitor output.
1101    checkpoint52b_pre
1102    
1103    o call "do_the_model_io" at the beginning (=> dump initial state)
1104    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1105    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1106      (need info on NUMBER_OF_PTRACERS)
1107    o missing PTRACERS headers in some routines
1108    o default tamc.h in pkg/autodiff supposed to crash
1109      to ensure proper customization
1110    
1111    checkpoint52a_post
1112    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1113      - moved surfaceTendencyTice from pkg/seaice to main code
1114      - subroutine FREEZE_SURFACE now limits only surface temperature
1115        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1116        => new output.txt for global_ocean.cs32x15 & global_with_exf
1117      - keep the old version of FREEZE for backward compatibility;
1118        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1119      - corresponding modifs for TAF directives
1120    o added surface flux output variables to TIMEAVE_STATVARS
1121    o time-averaged output for pkg/ptracers
1122    o fix problem with ECCO-related divided adjoint
1123      snapshot file was missing some ad-variables,
1124      but no warning issued by TAF
1125    
1126    checkpoint52a_pre
1127    o some bug fixes for #undef REAL4_IS_SLOW
1128    
1129    checkpoint52 = ecco_c52_e35
1130    o after testing adjoints of checkpoint51u_post
1131    
1132    checkpoint51u_post
1133    o this is the post-merge tag of the ecco-branch
1134      (needs another clean checkout and re-testing)
1135    o various natl_box_adjoint configs and results
1136      but no input fields
1137    o obcs adjoint not yet merged!
1138    o adding ECCO global 1x1 and 2x2 degree configs
1139    o updated/extended some store directives for seaice
1140    o pkg/ecco now containes ecco-specific part of cost function
1141    o top level routines the_main_loop, forward_step
1142      supersede those in model/src/
1143      previous input data.cost now in data.ecco
1144      (new namelist ecco_cost_nml)
1145    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1146    
1147    checkpoint51t_post
1148    o this is the pre-merge tag of the ecco-branch
1149    
1150    checkpoint51s_post
1151    o cleanup: removed various obsolete #define-s
1152    o pkg/grdchk
1153      - renamed 'ph-grd 3' to 'grad-res'
1154      - merged from ecco-branch
1155        (remaining bug fixes for obcs gradient checks)
1156      - additional high-precision output for testreport
1157        (grep for 'precision_grdchk_result')
1158    
1159    checkpoint51r_post
1160    o cleaned up or removed CPP_OPTIONS.h files
1161    o updated results for some of the tests to reflect the new
1162      optfiles (-ieee: -O0 instead of -O3)
1163    
1164    checkpoint51q_post
1165    o cd_code:
1166      - moved cd_scheme.F -> cd_code_scheme.F
1167      - separate read_checkpoint from cd_code_ini_vars.F
1168      - separated cd_code part from write_checkpoint
1169      - updated AD_SOURCE, generated .flow
1170      - added CD_CODE_VARS.h to the_main_loop
1171      - Moving cd_code specific store dir.s to pkg/cd_code
1172    o ctrl package totally restructured
1173      - pack/unpack now optional and decoupled from
1174        xx_/adxx_ I/O
1175      - ctrl_pack/unpack cleaned
1176        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1177      - confined inclusion of AD_CONFIG.h to where necessary.
1178    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1179    
1180    checkpoint51p_post
1181    o create initial cd_code package
1182      - WARNING: the initialization of fields within packages
1183        is broken because INI_FIELDS (where READ_CHECKPOINT is
1184        called) is called *before* PACKAGES_INIT_VARIABLES.
1185        This seems to be backwards since
1186        1) its important to initially zero the entire field including
1187           the "halo" region
1188        2) zeroing needs to be done *before* reading pickup info
1189           and the pickup call might or might not happen in any
1190           particular run
1191      - this needs an overhaul for R2
1192    o cleanup verification/*/code/GMREDI_OPTIONS.h
1193    o cleanup testreport
1194    
1195    checkpoint51o_post
1196    o bringing AD-related verif's up to date with genmake2
1197      - carbon/
1198      - global_ocean.90x40x15/
1199      - hs.94.1x64x5/
1200      - (front_relax/ )
1201    o (more) consistent directory structure for AD-related verif.'s
1202    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1203    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1204    o bug fix in find_alpha.F for MDJWF:
1205      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1206        change rho -> rho-rhoConst
1207      - replace call find_rho to find_rhonum
1208    o initialisation of rFlx extended to full array (required by TAF)
1209      and shifted to thermodynamics
1210    o removed PTRACERS.h in ptracers routine
1211    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1212    o Correcting initialisations for fVerU, fVerV.
1213    o helping TAF to recognize dependency on kUp for
1214      fVerU, fVerV
1215    o Replacing delZ by delR in pkg/ctrl/
1216    checkpoint51o_pre
1217    
1218    o undid all of cp51 pending some cleanups and discussion
1219    o added the [#include "AD_CONFIG.h"] statement to all files that need
1220       it for adjoint/tl #defines
1221     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1222     o removed tools/genmake since it no longer works
1223    
1224    checkpoint51n_post
1225    o modifications to make FREEZE flux visible to pkg/kpp
1226      - moved surfaceTendencyTice from pkg/seaice to main code
1227      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1228      - subroutine FREEZE now limits only surface temperature
1229        (this means new output.txt for global_ocean.90x40x15,
1230         global_ocean.cs32x15, and global_with_exf)
1231    o added surface flux output variables to TIMEAVE_STATVARS
1232    
1233    checkpoint51n_pre
1234    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1235    o added [#include "AD_CONFIG.h"] to all files that use the following
1236      defines:
1237      - ALLOW_ADJOINT_RUN
1238      - ALLOW_TANGENTLINEAR_RUN
1239      - ALLOW_ECCO_OPTIMIZATION
1240    
1241    checkpoint51m_post
1242    o incorporating changes to get TAMC/TAF working in genmake2
1243      - added new TAMC/TAF targets to the Makefile
1244      - various cleanups related to package handling
1245      - these changes should have no impact on the forward model
1246    
1247    checkpoint51l_post
1248    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1249     - faster algorithm for cal_addtime.F
1250     - higher precision arithmetic, where needed
1251     - pkg/exf *startdate variables changed from calendar date to
1252       model integration time
1253    
1254    checkpoint51l_pre
1255    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1256    o enable to apply restoring on S & T only in a latitude band.
1257    o update output (external_forcing_surf modif. change truncation errors)
1258       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1259    
1260    checkpoint51k_post
1261    o change default to: useNHMTerms=.FALSE.
1262     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1263       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1264     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1265        exp1, ideal_2D_oce
1266     - change data file of oceanic exp (leave the results unchanged for now)
1267       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1268    o set gravitySign automatically according to the vertical coordinate used
1269      (and change sign: back to "logical" value: +1 when R increases downward)
1270    o added an include barrier to the default CPP_OPTIONS.h and
1271      removed the #include "PACKAGES_CONFIG.h" from it
1272    o fix a bug in mom_fluxform (from chk51j_post)
1273    
1274    checkpoint51j_post
1275    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1276    o adjusted some flow directives (dynamics, thermodynamics)
1277    o added cubed-sphere case to test cost function
1278    o heckpoint_lev?_directives.h now include
1279      pkg-specific directives, whenever those are enabled.
1280    o Moving pkg-specific flow directives to corresponding pkg
1281      Moving pkg-specific differentiation list to corresponding pkg
1282      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1283      ---> conventions are
1284           - pkg_ad.flow
1285           - pkg_ad_diff.list
1286           - pkg_ad_check_lev?_dir.h
1287    
1288    checkpoint51i_post
1289    o merge of the branch-genmake2
1290      - knowingly breaks the older genmake
1291      - automatic generation of all ALLOW_${PKG_NAME} defines
1292      - new testreport supersedes older testscript
1293    o large number of package inclusion and header cleanups
1294    checkpoint51i_pre
1295    
1296    o new output for adjoin of global ocean vector invariant
1297    o fix for checkpoint of thermodynamic seaice and bulk_force
1298    o Steph gchem various cleanups
1299    
1300    checkpoint 51h_pre
1301    o fixed some single quotes
1302    o modify gchem pkg to be more versatile
1303    o modifications to clean up dic pkg
1304    o add pkg/cfc
1305    
1306    checkpoint51g_post
1307    o provide links for ARPACK and ADM*TLM
1308    o start removing verification/vero/
1309    o update AD-related stuff
1310      (in particular some IF-statements in model/src/ routines)
1311    o adding to verification/global_ocean.90x40x15/ adjoint of
1312      vector invariant setup
1313    
1314    checkpoint51f_post
1315    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1316    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1317      of tracer Green's fucntions for ocean inversion project.
1318    
1319    checkpoint51f_pre
1320    o Added on-the-fly spatial interpolation capability
1321        "USE_EXF_INTERPOLATION" to pkg/exf.
1322      - This is a temporary Cartesian-grid hack until
1323        the super-duper ESMF coupler becomes available.
1324      - See verification/global_with_exf/README for usage example.
1325      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1326        flags and modified pkg/seaice accordingly.
1327    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1328        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1329        non-local transport term.
1330    
1331    checkpoint51e_post
1332    o pkg/mom_vecinv:
1333      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1334      - add time-ave diagnostic of vorticity advection.
1335    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1336    o atmospheric geopotential: - include water vapor effect;
1337                                - use p^kappa in p* scaling.
1338    o land pkg: read initial state from files.
1339    o AIM : add stratospheric drag in the upper level
1340    
1341    checkpoint51d_post
1342    o change function ILNBLNK (=> last non-blank char.) to return zero
1343      (instead of the string length) when the string. char is empty
1344    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1345    o modif's to restore TAMC compatibility
1346      - avoid "_d" constructs in PARAMETER declarations
1347      - avoid interrupting lines by comment lines
1348    o Use cluster local disks for purely local I/O
1349      vs. globally visible disks needed for ctrl stuff
1350      (merged from ecco-branch)
1351      - new active_file_loc... and mdsio_..._loc routines
1352      - affected packages: autodiff, ctrl, grdchk, mdsio
1353    
1354    checkpoint51c_post
1355    o introducing integer flag debugLevel
1356      - debLevZero: suppress all output
1357      - debLevA: standard
1358      - debLevB: equivalent to current debugMode=.TRUE.
1359    o introducing pathname variable mdsioLocalDir for mdsio
1360      that can be specified at runtime
1361      (relevant for cluster I/O to local disk)
1362    `
1363    >>>checkpoint51b_post
1364    adjoint of ptracers
1365    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1366    o extended state in checkpoint_lev?, etc.
1367    o alternative ctrl/cost with tr1 or ptracer
1368    o new comlev1_bibj_ptracers
1369    o new ptracers.flow
1370    o made ptracers_forcing same as external_forcing_s
1371    o added verification for adjoint with ptracers
1372      - adm. grdchk fail so far
1373      - tlm. grdchk OK
1374      - checked tapelev/comlev recomputations: OK
1375    <<<checkpoint51b_pre
1376    
1377    checkpoint51a_post
1378    o added code for biogeochemistry package
1379      - new pkgs: dic, gchem
1380      - new subroutine in ptracers
1381    o modify code for biogeo packages
1382      - in model/src and pkg/ptracers
1383    
1384    checkpoint51
1385    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1386      - autodiff, ctrl, exf, grdchk, seaice
1387      kept separate packages
1388      - cost, ecco, obcs
1389    o updating verification/internal_wave, verification/lab_sea
1390      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1391    
1392    checkpoint50i_post
1393    o Preparing next differentiable checkpoint and sync
1394      of MAIN vs. ecco-branch
1395      - 1st step: this one is differentiable
1396      - 2nd step: next(! not this) checkpoint will have updated packages
1397                  from ecco-branch)
1398    
1399    checkpoint50h_post
1400    o new package "land": provide surface BC for AIM.
1401    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1402    o AIM: use true log-P extrapolation for near surface temp (= as in
1403        F.Molteni paper) ; update aim.5l_cs output.
1404    o New variable in PARM03 for more flexible pickups
1405    o somewhat cleaned package initialisation sequence for
1406      ctrl/ cost/ ecco/ in packages_... routines
1407    
1408    checkpoint50g_post
1409    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1410      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1411      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1412        made the default because of faster convergence than ADI
1413    
1414    checkpoint50f_post
1415    o exf totally restructured
1416      - replaced all exf_set_ routines by one generic exf_set_gen.F
1417        and made sure it's still differentiable
1418      - split exf_getffields.F into new exf_bulkformulae.F
1419      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1420      - updated adjoint/makefile and relevant verif. accordingly
1421    
1422    checkpoint50f_pre
1423     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1424          + change Evap over land. (update aim.5l_cs output)
1425     o added missing .cvsignores and made uniform across expts
1426     o changed configuration of tidal_basin_2d expt
1427     o added pkg/debug functions for tracing code in fatal crashes
1428     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1429     o new fn in pkg/monitor to stop model if solution grows too big
1430     o removed lots of single quotes from comments
1431    
1432    checkpoint50e_post
1433    o make KPP work with PTRACERS
1434     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1435       nearly a copy of kpp_transport_s
1436     - there is no analogue to SurfaceTendencyS, so I have to use
1437       gPtr(of the surface layer) instead
1438    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1439    checkpoint50e_pre
1440    
1441    checkpoint50d_post
1442    o change kpp output from multiple-record state files to single-record state
1443      files analogous to write_state.F
1444    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1445      analogous to the cg2d-related output.
1446    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1447      so that writing to internal file fn (with length 512) fails.
1448    checkpoint50d_pre
1449    
1450    checkpoint50c_post
1451    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1452    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1453    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1454    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1455    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1456    
1457    checkpoint50c_pre
1458    Merging from release1_p13:
1459    o bug fix for pkg/seaice dynamic solver
1460    o Added SEAICE_initialHEFF to pkg/seaice
1461    
1462    checkpoint50b_post
1463    o store u*,v* in gU,V instead of in guNm1,gvNm1
1464    o in order to put the momForcing out of the Adams-Bashforth:
1465      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1466      to timestep.F
1467    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1468    o re-generate output for highly sensitive test-exp:
1469       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1470    
1471    checkpoint50b_pre
1472    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1473    o corrected CPP option mismatch in exf_Bulk... functions for case
1474      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1475    
1476    checkpoint50a_post
1477    o Bug fix for merging between c50 and KPP.
1478      ikey was passed from thermodynamics to kpp_calc via
1479      common block rather than being recomputed in kpp_calc,
1480      in contradiction with new key itdkey.
1481      New key ikppkey created, and tamc.h headers updated.
1482    
1483    checkpoint50
1484    - 2nd step of merge with ecco-branch:
1485      merge changes in ecco-branch back into main trunk
1486    - bug fix in find_alpha
1487    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1488    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1489    - merged some sliced AD support routines
1490    
1491    checkpoint49
1492    merged from ecco-branch:
1493    o exf:
1494      - Enable initialisation of forcing fields to constant
1495        (runtime) values.
1496      - in exf_getffields.F
1497        Reduce i-/j-loop to interior domain, discarding overlaps.
1498        That also fixes wrong TAF-key computations for key_1, key_2
1499        with bulf formulae.
1500      - exf_init.F modify #ifdef for exf_init_evap
1501      - exf_getffieldrec.F, ctrl_getrec.F
1502        The following INT-usages are not safe:
1503          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1504          fldcount = int(fldsecs/fldperiod) + 1
1505        and were modified.
1506    o autodiff: checkpoint_lev...
1507      - updated storing for bulk formulae (some arrays were missing)
1508      - added state for seaice package
1509      - synchronized with main branch
1510    o DIVA:
1511      Modif.s in
1512      - the_main_loop.F
1513      - the_model_main.F
1514      and added cost_final_restore.F cost_final_store.F
1515      o With these changes, it is possible to fully separate
1516        the first forward run to compute the cost function (mdthe_main_loop)
1517        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1518        into separate model executions.
1519        This enables better tuning of DIVA to given queue sizes.
1520      o Loss of cost function value in consecutive DIVA runs is
1521        fixed by storing to 'costfinal' file.
1522      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1523        beginning/end of adjoint integration is accounted for.
1524      The current changes apply to TAF-1.4.26.
1525      TAF has one remaining bug, requiring one manual change
1526      (see MITgcm manual).
1527    o cal: synchronized between MAIN and ecco-branch
1528    
1529    checkpoint48i_post
1530    o Changes to restore differentiability of code w.r.t. previous tag
1531      (mostly adding new routines to make list and replacing
1532      pressure by totPhiHyd).
1533    o Updated and merged grdchk package
1534      - has both ADM and TLM checks
1535      - works for single- and multi-proc.
1536      - output cleaned
1537      - worked successfully for parallel DIVA
1538    o genmake:
1539      - Adding -platform=SP4
1540      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1541    o Modif. for DIVA:
1542      ctrl_unpack should not be called in intermediate DIVA interval.
1543      (similar thing would apply for active files such as
1544      tbar, sbar, psbar, which should not be reinitialised;
1545      only relevant for ecco-branch)
1546    
1547    checkpoint48h_post
1548    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1549    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1550    o Added SEAICE_initialHEFF to pkg/seaice
1551    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1552    
1553    checkpoint48g_post
1554    --- EOS:
1555    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1556      store total Potential in totPhyHyd for diagnostics & EOS.
1557    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1558    --- Pressure/geopotential gradient:
1559    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1560    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1561      ( changes results of global_ocean_pressure )
1562    o NLFS + z-coord.: add eta*Rho' contribution.
1563    o accurate phiHyd when using interface-W at the middle between 2 centers
1564     ( changes results of ideal_2D_oce )
1565    o includes r* 2nd term in potential gradient.
1566    
1567    checkpoint48f_post
1568    Merging from release1_p12:
1569    o Modifications for using pkg/exf with pkg/seaice
1570      - improved description of the various forcing configurations
1571      - added basic radiation bulk formulae to pkg/exf
1572      - units/sign fix for evap computation in exf_getffields.F
1573      - updated verification/global_with_exf/results/output.txt
1574    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1575      (SBO) core products, including oceanic mass, center-of-mass,
1576      angular, and bottom pressure (see pkg/sbo/README.sbo).
1577    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1578      to avoid negative values in shallow regions.
1579      - updated verification/natl_box/results/output.txt
1580      - updated verification/lab_sea/results/output.txt
1581    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1582    o Added useSingleCpuIO option (see PARAMS.h).
1583    o Updated useSingleCpuIO option in mdsio_writefield.F to
1584      work with multi-field files, e.g., for single-file pickup.
1585    o pkg/seaice:
1586      - bug fix in growth.F: QNET for no shortwave case
1587      - added HeffFile for specifying initial sea-ice thickness
1588      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1589    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1590      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1591    o pkg/seaice:
1592      - adjoint-friendly modifications
1593      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1594    
1595    checkpoint48e_post
1596    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1597    o dynamics: change definition of computational domain & adapt mom_fluxform
1598      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1599    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1600        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1601        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1602        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1603        inverted_barometer solid-body.cs-32x32x1
1604      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1605    
1606    checkpoint48d_post
1607    o in preparation for r*:
1608     a) use pre-computed gradient of hydrostatic potential:
1609        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1610     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1611        => affects results of glob_oce_pressure (different truncation error)  
1612      update output.txt of ideal_2D_oce & global_ocean_pressure
1613    
1614    checkpoint48d_pre
1615    o in preparation for r*:
1616      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1617      pass the 2 comp. of the grad. as arguments to momentum S/R.
1618      but for the moment, only used if it does not change the results.
1619    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1620    
1621    checkpoint48c_post
1622    Modifications in treatment of initial flux forcing controls
1623    to avoid extra storing of flux fields.
1624    
1625    checkpoint48c_pre
1626    o Added tidal_basin_2d experiment (currently 1D!)
1627    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1628    
1629    checkpoint48b_post
1630    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1631     (modification to pressure gradient not yet implemented)
1632    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1633      (for U & V) that are used for vertical advection of momentum.
1634    
1635    checkpoint48a_post
1636    o In preparation for r*, use temp. array to compute vertical transport
1637       in flux-form momentum pkg. => change results of few test-exp.
1638      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1639                        lab_sea, natl_box & plume_on_slope
1640    
1641    checkpoint48
1642    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1643    
1644    checkpoint47j_post
1645    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1646    o moved adexch from forward_step to addummy_in_stepping
1647    o added exch in ctrl_map_...
1648    o aveFreq.=0. at end of cost_final to avoid overwrite in
1649      reverse checkpointing loop
1650    o Yet more changes in gmredi:
1651      * adgmredi_calc_tensor
1652        avoiding all recomputation of gmredi_slope_limit
1653      * adgmredi_x/y/rtransport
1654        added flag for excessive storing to avoid recomp. of
1655        u/v/rtans, dTdx/y/z
1656        -> this is not really necessary and very memory-consuming
1657      * adgmredi_slope_psi:
1658        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1659      * gmredi_slope_limit
1660        re-activated full calculation of taperfct for case 'ac02'
1661    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1662    
1663    checkpoint47i_post
1664    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1665    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1666      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1667    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1668    o gmredi: fix few bugs.
1669    
1670    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1671    This will be a good checkpoint to plug into the ecco-branch.
1672    o few modif.'s to get latest version adjointed
1673      (mainly kick out code in ini_linear_phisurf)
1674    o modif's to run adjoint with exactConserv
1675    o case GM_BOLUS_ADVEC should be cleaned
1676      S/R gmredi_slope_psi should be cleaned
1677    o verification/carbon now has exactConserv=.TRUE.
1678    
1679    checkpoint47g_post
1680    o time-average AIM output: becomes independent from statvars time-average
1681      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1682    o After TAF bug fix:
1683      Tested adjoint of gmredi package.
1684      Tests were done with checkpoint47 rather than with latest
1685      checkpoint47f_post since the latter is broken for the adjoint
1686      verification/carbon/ contains both ADM and TLM gradient checks.
1687    Here they are, before they get changed/lost/stolen.
1688    Mostly modif.'s to fix numerical sensitivities.
1689    Gradient checks OK for
1690    - GM_taper_scheme:
1691      * clipping
1692      * ac02
1693      * linear
1694      * glw91
1695      * dm95
1696      * ldd97
1697    - GMREDI_OPTIONS:
1698      * GM_VISBECK_VARIABLE_K
1699      * GM_NON_UNITY_DIAGONAL
1700      * GM_EXTRA_DIAGONAL
1701      * GM_BOLUS_ADVEC
1702    in conjunction with data.gmredi parameters to be checked in
1703    in a few minutes under verification/carbon/code/
1704    
1705    checkpoint47f_post
1706    Merging from release1_p10:
1707    o modifications for using pkg/exf with pkg/seaice
1708      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1709        and SEAICE_EXTERNAL_FLUXES
1710      - pkg/exf CPP options EXF_READ_EVAP and
1711        EXF_NO_BULK_COMPUTATIONS
1712      - usage examples are Experiments 8 and 9 in
1713        verification/lab_sea/README
1714      - verification/lab_sea default experiment now uses
1715        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1716    
1717    checkpoint47e_post
1718    o created a tag prior to creating a branch
1719    
1720    checkpoint47d_post
1721    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1722      at the bottom boundary had an erroneous half slip boundary condition
1723    o added bottom drag and no slip boundary condition capabilities to
1724      oceanic pressure coordinates code
1725    o added new verification experiment global_ocean_pressure, this experiment is
1726      also described in the tutorial section of the manual
1727    checkpoint47d_pre
1728    
1729    checkpoint47c_post
1730    o Added a verification experiment for a global cubed-sphere ocean run
1731      -  verification/global_ocean.cubed32x32x30
1732      -  uses pkg/therm_seaice and pkg/bulk_forcing
1733    
1734    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1735    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1736      when using P-coordinate; only implemented for atmospheric config.
1737    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1738      NOTES: requires option NONLIN_FRSURF to be "#define".
1739    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1740    
1741    checkpoint47b_post
1742    Merging from release1_p9:
1743    o pkg/seaice
1744      - removed GOTO's and added taf directives
1745      - double precision constants to reduce the g77 (Linux)
1746        to F77 (SGI) differences reported in release1_p8
1747    o tools/genmake
1748      - added SGI options
1749    o verification/testscript
1750      - updated to that of checkpoint47a_post
1751    o verification/global_ocean.90x40x15/input/eedata
1752      - modified for SGI f77 compatibility
1753    o verification/lab_sea
1754      - added description of sea-ice model
1755      - added missing matlab routines
1756      - added test of thermodynamics parallelization
1757    
1758  checkpoint47a_post  checkpoint47a_post
1759  o new pkg: aim_v23  o new pkg: aim_v23
1760   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.

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