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revision 1.106 by jmc, Sat Nov 23 22:39:36 2002 UTC revision 1.562 by mlosch, Mon Oct 10 05:55:52 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 OBCS and PTRACERS: add open boundary support for passive tracers
8      - either use homogenous (pseudo) v.Neumann conditions or prescribe
9        OB-values from file; this is not different from the way theta and salinity
10        are treated
11      - however, Orlanski-radiation conditions are not supported, and the model
12        will stop if you use pTracers and Orlanski at the same time.
13      - beefed up the rountine obcs_external_fields_load: now only those open
14        boundary values are overwritten with values from files for which there
15        are really files, otherwise the OB-fields remain untouched. This makes
16        it possible to use different OBs at different ends of the domain (as
17        with EXF)
18    o reduce number of exch calls in shap_filt (s2).
19    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
20      truncation level) 4/5 MLAdjust test results (11&12 digits match).
21    
22    checkpoint57t_post
23    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
24    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
25      same truncation, independent of the face number: affects affects several
26      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
27    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
28      note that biharmonic viscosity + no-slip was not tested in any experiment.
29    o fix bug in non-linear free-surf side-drag ; generate new output for
30      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
31    o make mnc honor the writeBinaryPrec flag for most kinds of output
32    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
33    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
34      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
35    o add brackets in multi-terms sum to get same truncation, independent of
36      the face number (manage to get exactly same value of gU,gV at the cs-edge)
37      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
38    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
39      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
40      a maximum grid-scale Reynolds number.  Also, changes all length calculations
41      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
42      Suggested values of viscosity parameters found in mom_calc_visc.
43      Many new viscosity diagnostics available.
44    
45    checkpoint57s_post
46    o Add clearing-house for viscosity calculations, mom_calc_visc and
47      correct numerous bugs in LeithD and Smagorinsky discretizations.  
48      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
49      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
50      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
51      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
52      The Strain-Tension form is now called with useStrainTensonVisc=.true.
53      ViscAhStrain and viscAhTension are now retired.
54    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
55    o In response to JMC's bug report, genmake2 now ignores any soft-links
56      that it finds in the *current* directory when searching for files.
57      Soft-links found in any other source directories will still work as
58      they did before.
59    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
60      a C routine to unlimit the stack size
61    o mnc-ify pkg/aim snapshot vars
62    o mnc-ify pkg/land as requested by Daniel
63    o various changes to mnc including:
64      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
65      - output can now be grouped so that all files within a group
66          change the ITER portion of their names in lock-step together
67      - can now read ("global") PER-FACE (in addition to PER-TILE) files
68          and works with both EXCH1 and EXCH2 (but needs more testing)
69      - writing works for all verification test cases w/ g77 on Linux
70    
71    checkpoint57r_post
72    o make MNC variable initialization happen earlier
73    o add diagnostics for (almost) each term of the momentum Eq.
74    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
75    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
76    o remove MINIMAL_TAVE_OUTPUT option ;
77      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
78    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
79      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
80    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
81    o add time-dependent SST, SSS control
82    o cost terms in ecco/ modularized (new cost_generic.F)
83    o cost_averages routines are modularized (new cost_averagesgeneric.F)
84    o new infrastructure for seaice model vs. obs misfits in seaice/
85      * driver from the_main_loop.F is seaice_cost_driver.F
86      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
87      * gradient check in Exp. 6a of natl_box_adjoint/
88    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
89      (see README file)
90    
91    checkpoint57q_post
92    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
93    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
94      - bug was reported by Jean-Michel and Ian Fenty
95    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
96      update exp. cpl_aim+ocn output.
97    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
98      Needed for high-res. runs with large global files
99      to be able to limit tapelev size
100    o Changed some tests for adjoint:
101      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
102      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
103      * global_ocean.90x40x15/ back to default 3-level checkpointing
104    o Modifications to enable scripted COMMON to MODULE conversion
105      * verification/OpenAD/code/ has necessary scripts and description;
106      * converts, compiles and runs successfully;
107    
108    checkpoint57p_post
109    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
110    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
111      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
112    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
113    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
114      (was already the case for dissipation with mom_vecinv,
115       and also the case for grad.PhiHyd when staggered-timeStep)
116      This will allow to put dissipation out-off the AB time-stepping.
117     Unfortunately, affects truncation error. Update output of exp. that "fails"
118      (cg2d matching number) and leave the others for later: front_relax(10),
119      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
120      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
121    
122    checkpoint57o_post
123    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
124      (2) its ready to be documented during the 20050801 DocFest
125    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
126      for ideal_2D_oce and lab_sea on linux_ia32_g77
127    o set to #undef CTRL_SET_OLD_MAXCVARS_30
128      in global1x1_tot/code_seaice_adj to access indices 32, 33
129      (worth another tag)
130    
131    checkpoint57n_post
132    o adding precip control xx_precip 32
133    o adding swflux control xx_swflux 33
134    o Replacing 10 forcing penalty cost routines by 1 generic.
135    o Implementing partitioning in time-mean and variable adjustment
136      for atmos. state.
137    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
138    o in natl_box_adjoint:
139      * updated exp 1 to 10
140        (but does not have time-mean vs. variable split results yet)
141    o updated global1x1/*_seaice_adj/
142      to incorporate latest changes
143    o enable useSingleCpuIO for mdsio vector routines
144      (applies in particular to tapelev I/O)
145    o removed inefficient K-loop in all active_file*control*.F
146    
147    checkpoint57m_post
148    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
149      and advect_cs (use EXCH-2 and standard cs-32 grid files).
150    o pkg/exch2: filling of face-corner halo regions is optional
151      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
152    
153    checkpoint57l_post
154     tag before updating tutorials (pre-release-2)
155    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
156       for output and interpolation of input fields onto model grid)
157    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
158       Affects results of exp. rotating_tank ; update output.txt.
159    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
160          and taking the square quantity and/or using a fraction-weight field.
161    o fix aim_diagnostics_init.F mate numbers.
162    o add mnc output capability to diagnostics/diagstat and update
163      our cvsignore files for the ACSII output generated
164    
165    checkpoint57k_post
166    o lab_sea now uses diagnostics package and provides a suite of
167      new EXF diagnostics output.
168    
169    checkpoint57j_post
170    o exf
171      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
172        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
173        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
174      * extended diagnostics output
175        - now includes all EXF variables
176        - hs, hl moved to common block
177        - separate S/R for diagnostics, called after ctrl vector is added
178        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
179        - EXFqnet contains true Qnet (i.e. includes qsw)
180      * updated verif. lab_sea, global_with_exf
181      * Rearranging hflux (exf_mapfields -> exf_getforcing)
182        to ensure that diagnostics sees a true EXFqnet
183    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
184    o diagnostics pkg: change pointers so that 1 diagnostic can be used
185      several times with different frequencies.
186    o mnc-ify the thsice package as requested by Daniel Enderton
187      - the monitor--MNC output needs work
188      - many attributes need to be added (most are currently blank)
189    o mnc-ify theaim_v23 package as requested by Daniel Enderton
190      - many attributes need to be added (most are currently blank)
191    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
192    o add Sadourny like discretization to the 4th.O vorticity advection scheme
193    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
194      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
195         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
196    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
197     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
198    
199    checkpoint57i_post
200    o Diagnostics package was changed: diagnostic allocation is now deactivated
201      by setting an empty file name in the namelist (used to be by setting 0 frequency)
202    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
203      add 1rst Order upwind vertical Shear.
204    o add a quick fix for A/B checkpointing in OFFLINE mode
205    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
206      end-run around the C/Fortran linking horror in eesup/src/timers.F
207    o added pkg/runclock: allows user to terminate run based on wall clock
208    o added non-hydrostatic scaling parameter: nh_am2
209    o pkg/my82: futile attempt to make results compiler-independent by adding
210      some "_d 0", etc. no effect.
211    o for mnc output, fill the 'T' coordinate var with myTime and create a
212      separate 'iter' variable for iteration count
213    o pkg/diagnostics:
214      add new capability: output of Global/Regional & per-level statistics ;
215      tested against monitor output (including land & thSIce) on various exp.
216    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
217    
218    checkpoint57h_done
219      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
220      data.diagnostics, data.gchem, data.ptracers) is done.
221    
222    o pkg/diagnostics: prepare for Global/Regional statistics.
223      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
224    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
225      and rename it: DIFFERENT_MULTIPLE
226    
227    checkpoint57h_post
228    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
229    o pkg/diagnostics: change output frequency, now in seconds (instead
230      of Nb of iterations). This requires to change data.diagnostics.
231    checkpoint57h_pre
232    
233    o in mnc, let the user create the output dir if both mnc_outdir_date
234      and mnc_outdir_num are false
235    o add fflags() to pkg/diagnostics which allows one to specify, on a
236      per-file basis, the file precision [default behavior is unchanged]
237    o added diagnostics to pkg/kpp, including computation of mixed layer
238      depth based on a temperature/density criterion
239    o updated verification/natl_box to test the new pkg/kpp diagnostics
240    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
241    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
242    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
243      not mnc -- this mistake was found by JMC and is now corrected
244    
245    checkpoint57g_post
246    o add Adams-Bashforth 3rd Order time stepping:
247      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
248      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
249    checkpoint57g_pre
250    
251    o make lambda[Theta,Salt]ClimRelax spatially varying
252      (default remains spatially uniform constant based on tau)
253    o added new control variables
254      * init. uVel, vVel, etanN
255      * lambda[Theta,Salt]ClimRelax
256    o separate masks used for ctrl_pack/unpack 'from write_grid' output
257      (suggested by G. Forget)
258    
259    checkpoint57f_post
260    o add parameter "baseTime" = model base time = time at iteration zero
261      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
262      account for baseTime shift
263    o move Coriolis arrays from PARAMS.h to GRID.h
264    checkpoint57f_pre
265    
266    o mnc-ifying the seaice package
267    o introduced an alternative length scale calculation for use in the limiting
268      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
269    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
270    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
271      as well as grad(vort3).  Made it compatible with both approximate form
272      for the cubed sphere and full form of these gradients.  Added flag
273      useFullLeith to select between approximate and full form.  
274    o add "d0" in getcon.F to reduce differences between compilers/platforms
275      update output.txt of exp. fizhi-gridalt-hs
276    o change port_rand funtion to allow to set the seed.
277    o fix obscure MNC bug involving conversion between reals and integers
278      - it caused no problems with certain (eg. gcc, ifc) compilers but the
279        new version is now more standards-compliant
280    o adjoint-related modifications
281      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
282      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
283      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
284    
285    checkpoint57e_post
286    o Adding eddy stress controls a la Ferreira et al.
287    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
288    
289    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
290      update output.txt of exp. fizhi-gridalt-hs
291    o add more "Z" dimensions and associated coordinate vars to MNC
292    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
293    o parameter calendarDumps: when set, approximate months (30-31 days) and years
294      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
295      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
296      months and years.  Requires pkg/cal.
297    o diagnostics: add pickup functionality
298      - off by default for backwards compatibility
299      - current version only uses MDSIO -- MNC will be added
300    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
301    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
302    
303    checkpoint57d_post
304    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
305    o modify verification/ideal_2D_oce so that it tests the creation of mnc
306      output from the diagnostics package
307    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
308    o make genmake2 more portable by using ".$FS" instead of ".f" for more
309      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
310    o add coordinate variables to the MNC output from the diagnostics package
311    o change MNC-flags default value: true when useMNC=TRUE
312    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
313      the ability (off by default) to read the grid information using MNC
314    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
315    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
316    o do snap-shot diagnostics at the middle of the time-interval (instead of
317      at the end).
318    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
319      new test for AIM with thSIce + slab-ocean
320    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
321    o move state variable diagnostics to the beginning of the time step ;
322      (note: still needs some work specially for snap-shot diagnostics)
323      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
324    
325    checkpoint57c_post
326    o Change testing option (-ieee) to get closer agreement between g77 & ifort
327    o generate new output.txt files on faulks with g77 & the new -ieee option
328    checkpoint57c_pre
329    
330    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
331      update output.txt of exp. global_ocean.90x40x15
332    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
333      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
334    o add saltFlux(+File) forcing capability with periodicExternalForcing
335    o allow to use pkg diagnostics for GM-Redi & ThSIce output
336    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
337    o improvements for the MNC output from DIAGNOSTICS:
338      - correct handling of the unlimitied dimension
339      - all dims now have associated coordinate variables
340      - variables located at U, V, and Corner ("Z") points are now written
341        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
342        *all* data points are output
343    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
344    o added pkg/seaice/seaice_monitor.F
345    o mdsio_readfield.F can now read files visible only to master MPI process.
346    o pkg/seaice: some test code for ice-modified ocean stress
347    o exf_getffields interpolation defaults to bilinear for all scalar forcing
348      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
349      spurious negative numbers for precipitation and humidity.  Will cause
350      some small numerical differences for integrations using pkg/exf/exf_interp.F.
351    o pkg/ctrl/
352      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
353        May be enabled via doPackDiag
354      *  introduce z-scaling of
355         + gradient (doZscalePack) and
356         + control (doZscaleUnpack)
357    o pkg/mdsio/
358      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
359      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
360    
361    checkpoint57b_post
362    o simplify options in diagnostics_fill arguments (remove weird combinations)
363    o fix MNC coordinate variables so that they now contain per-face index
364      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
365      general, EXCH2 grids are only aligned to a "local" coordinate system
366    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
367    o Implement instantaneous output within pkg diagnostics:
368      setting a negative frequency in data.diagnostics produces
369     "snap-shot" output (as opposed to time-average if freq > 0)
370    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
371      NOTE: change ptracer diagnostics name: use 2 characters to work with
372            more than 9 tracers. Add also diagnostics of advect & diffus flux.
373    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
374      becomes the coordinate variable for the 'T' dimension
375    o add CF-style coordinate variables to MNC
376      - just a first cut:  numbers are meaningless on the cubesphere and
377        missing along the T axis but otherwise it works!
378    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
379    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
380    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
381      this is based directly on what the model compute, so that the content of
382      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
383    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
384    o clean up build options files for SunOS, in particular
385      - remove -traditional from xmakedepend
386      - change -xarch=v9 to -xarch=native for f77
387      - restore use of make (not gmake)
388      - add CC=gcc if using g77
389    o changes per discussion of AM, JMC, & EH3 today:
390      - move redundant "grid" variables out of "state" -- in preparation of
391        creating proper CF-style coordinate variables and in recognition
392        that any/all grid variables can be easily copied (eg. w/NCO) from
393        the grid files into any of the other NetCDF files
394      - *always* output grid variables with MDSIO (this will eventually be
395        changed)
396      - output MNC grid file if useMNC is true
397    o every instance of _END_MASTER() has been found and replaced with
398      _END_MASTER( myThid ) in order to satisfy certain picky Sun
399      preprocessors
400    o re-arrange diagnostics pkg initialisation:
401     - allow each package to extend the available diagnostics list
402     - add some checking and fix small problems (multi-threaded, ...)
403     - new S/R diagnostics_fill (replace fill_diagnostics):
404       look through the short list of active diag. (instead of the long list)
405       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
406    
407    checkpoint57a_post
408    o this set of changes restores TAMC compatibility
409      tested for global_ocean.90x40x15 adjoint on trough
410      (what a pain)
411    
412    checkpoint57a_pre
413    o some modifs in tools/build_options for sunos
414    o call ctrl_pack for ctrl at end for optimcycle=0
415    
416    checkpoint57
417    o add horizontal bi-harmonic viscosity for vertical velocity
418      - new parameter viscA4W (defaults to viscA4)
419      - affects only non-hydrostatic code
420      - to be done: no-slip lateral boundary conditions
421    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
422    o implement Implicit Vertical advection for pTracers
423    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
424      (implemented also for implicit vertical diffusion & advection)
425    o OBCS: extend application of tracer open boundary conditions
426      to a strip beyond the boundary of width Olx/Oly
427    o add call monitor to TAF set of required calls (flow directives)
428      and include in natl_box_adjoint
429    o untangle a few ifdefs related to cost, ctrl, autodiff
430      untangel a few ALLOW_ECCO_OPTIMIZATION
431    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
432      (theta2, salt2 in ecco_cost_weights)
433    
434    checkpoint56c_post
435    o OBCS as control variables
436      - update ctrl_ad_diff.list, obcs_ad_diff.list
437      - remove balance of obcs controls from default
438      - fix index bug nobcs in ctrl_init
439      - fix dummy fields filen in ctrl_pack
440      - add dummy weights for obcs
441    o lsopt: comment out fort.94 output
442    o optim:
443      - remove unnecessary header files
444      - adjusted namelists
445      - add xerbla.F to Makefile
446    o exf:
447      - multiple modifications of exf_check_range
448      - unit change in exf_init_runoff from [m/year] to [m/s]
449    o mdsio:
450      - i/o-vector change debugLevel from debLevA to debLevB
451    
452    checkpoint56b_post
453    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
454      is called from DO_THE_MODEL_IO
455      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
456      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
457      - clean up PTRACERS_WRITE_TIMEAVE a little
458    o add another verification experiment that tests both the cfc-pkg and
459      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
460      reactive tendencies treated inline with regular timestepping
461    o testreport previously did a lousy job of comparing small numbers, so
462      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
463      implemented in the little c-progam tmp_cmpnum.c which is embedded in
464      testreport.
465    o ptracers_monitor: bug fix for MPI
466    
467    checkpoint56a_post
468    o GCHEM: finish reorganizating the package
469      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
470        (introduces another 3D-array for each passive tracer, but only if
471        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
472        gchemTendency is not needed because the timestep is done separately)
473      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
474      - GCHEM is now---more or less cleanly---separate from PTRACERS
475      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
476        so clear to me how that should be done in a general way.
477    o CFC: improve formatting of output in CFC_ATMOS
478    o PTRACERS:
479      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
480        that ALL experiments with ptracers enable can be checked. This makes
481        GCHEM_MONITOR obsolete.
482      - include a runtime parameter PTRACERS_monitorFreq that defaults to
483        monitorFreq
484      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
485    o add PTRACERS (PTR0[1-5]) to testreport output
486    o exf_check_range:
487      * default changed to .TRUE.
488      * will check values for niter0 if debLevA, every timestep if debLevB
489      * STOP in exf_check_range if 'out of range'
490      * range chosen generous to allow for potential extema
491      TBD: a version with stricter range
492           permitted range would be runtime parameters
493    o GMredi:
494      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
495      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
496      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
497    o GCHEM:
498      - move call to GCHEM_FORCING_SEP, so that it is now called before
499        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
500      - introduced a useGCHEM runtime flag and applied it everywhere.
501      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
502        this flag is now only visible within GCHEM-pkg routines.
503      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
504        be replaced by a 3D array that is computed before thermodynamics; for
505        this, the tracer ID iTracer had to be included into the parameter list
506        of ptracers_forcing
507      - set up forward_step to call gchem_forcing, that will replace
508        gchem_forcing_int in ptracers_forcing
509      - cleaning up
510    o small cleaning of exch2: remove files that are also in eesupp/src
511    
512    checkpoint56
513    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
514    o mnc: cleanup "full" files--fixes out-of-memory problem
515    o ECCO-GODAE
516      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
517      * fully merged and updated from SIO code
518        windstress sign change affects
519        - exf_inscal_[u/v]stress
520        - sign of xx_tau[u/v] adjustments
521        - signs in cost_scat
522      * ctrl_get_gen: avoid update of tau[u/v] for first few days
523      * natl_box_adjoint updated and compressed
524      * 2-level checkpoint switch added
525        (tested in EXP. 1 of natl_box_adjoint)
526      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
527    o SVD
528      * first complete, non-hacked version for SVD calculations
529      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
530        performed via direct access files admtlm_vector.it????
531        (via ctrl_[un]pack)
532      * optimcycle is used for ARPACK iteration counter
533        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
534      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
535        and add linear transforms where necessary
536      * controls are initial/final SST, SSS (can be extended; need to check
537        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
538    o mdsio: filename info to both stderr, stdout
539    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
540      from sign change
541    
542    checkpoint55j_post
543    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
544      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
545    o add consistent build directories and .cvsignore files to verification
546    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
547    o make all subroutines 30 or less characters in length for certain older
548      compilers to work (a thorough search only turns up two routines in
549      pkg/ptracers)
550    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
551      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
552    
553    checkpoint55i_post
554    o change arrays for total vertical diffusivity (2.D if explicit,
555      3.D if implicit) ; each ptracer uses its own background value.
556    o added mnc/NetCDF output capability to ocn_compon_interf
557      - added bits to verification/cpl_aim+ocn so that it can run on
558        ITRDA and other clusters without the mpirun "-wd" option
559    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
560      configuration
561    o give MNC the ability to create additional files rather than
562      exceeding a specified file size limit "MNC_MAX_FILESIZE"
563      - the default is just less than 2GB which is a practical limit
564        on many systems
565    o Compute the non-local term using either KPP vertical diffusivity (=default)
566       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
567    
568    checkpoint55h_post
569    o add verification test "vermix"
570    o remove all the *_ioinc flags and replace with the single global
571      outputTypesInclusive flag
572    o allow to set a vertical profile of vertical diffusivity for T & S
573    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
574    o useMNC moved from data.mnc to data.pkg
575    
576    checkpoint55g_post
577    o Renaming carbon AD experiments to comply with testreport conventions
578    o Updating adjoint of Held-Suarez hs94.1x64x5
579    o Fixing directives for non-ECCO forward_step, after ECCO directives
580      have been fixed to avoid recomp. of do_oceanic_phys
581      Works well for global_ocean.90x40x15,
582      but recomp. issue remains for carbon
583    o Updating adjoint output for natl_box_adjoint after
584      pkg/ecco has been modified (see taga c55d_post)
585    
586    checkpoint55f_post
587    o rename to timeave_init_fixed
588    
589    checkpoint55e_post
590    o some delicate re-shuffle of store directives to avoid one
591      extra call of do_oceanic_physics
592      affects ecco_the_main_loop.F, do_oceanic_physics.F
593      checkpoint_lev1_directives.h
594    o NB: this may break global_ocean adjoint temporarily,
595      but it is clear how to fix it. Will do later, need this now.
596    
597    checkpoint55d_post
598    o ECCO specific cost function terms (up-to-date with 1x1 runs)
599    o ecco_cost_weights is modified to 1x1 runs
600    o modifs to allow observations to be read in as
601      single file or yearly files
602    o enable to read exf forcing fields as either
603      single file or yearly files (flag useExfYearlyFields)
604    checkpoint55d_pre
605    
606    o switch between 2-level and 3-level checkpointing
607    o add ability of MNC to write local and "partial" (eg. 2D slices where
608      the full 3D field is never actually stored) arrays to NetCDF files
609      with the correct (that is, the complete multi-dimensional) set of
610      array indicies
611      - used in mom_vecinv() to write the diagFreq output
612      - tested (demonstrated) in verification/aim.5l_cs
613    o further mnc-ification
614      - add verification/lab_sea to the list with mnc setups
615      - fix undefined mnc v-names in cd_code
616      - add kpp to mnc output (both snapshot and timeave)
617    o non-hydrostatic code
618      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
619        in calc_gw.F
620      - defaults to viscAh
621      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
622        friction or Leith) in non-hydrostatic mode, as long as there is
623        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
624    o pkg/cost
625      extend simple cost functions to treat time mean quantities
626      (T,U,V) via cost_accumulate_state from cost_tile
627    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
628        be 2 times larger than the minimum size the advection scheme requires.
629        now get a perfect conservation of salt in advect_cs test-exp (updated)
630    o GGL90 (Gaspar's TKE mixed layer)
631      - add horizontal diffusion of TKE, requires exchanges in
632        do_fields_blocking_exchanges, horizontal diffusivity is zero by
633        default. In OPA there is no horizontal diffusion of TKE but the
634        mixing coefficients are computed from a horizontal average of TKE of
635        6 points or so. I think that diffusion has a little more physical
636        justification.
637      - clean up ggl90_calc in the hope of reducing memory usage (this hope
638        was in vain)
639      - mask tke-variable in ggl90_init
640    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
641    o fix biharmonic diffusion on CS-grid.
642    o more obcs stuff
643      - added obcs_external_fields_load as an alternative to the EXF-pkg option
644        for reading boundary values. This routine is called from
645        obcs_prescribe_read
646      - updated obcs_check
647      - changed sponge layer relaxation parameter units for days to seconds
648      - turned off sponge layer by default
649      - changed argument list of OBCS_CALC to myTime+deltaTclock
650      - fixed about 35 bugs in obcs_external_fields_load
651    
652    checkpoint55c_post
653    o obcs stuff
654      - new runtime flags useOBCSprescribe, useOBCSbalance
655      - re-arranged obcs_calc
656      - moved exf_getobcs to obcs_prescibe_read
657        obcs_prescibe_read is called after ORLANSKI stuff
658        and independent of it (executable can contain all).
659      - updated obcs_check
660      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
661        These may be necessary only if tangential velocities are
662        prescribed at OB, not sure, needs testing.
663    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
664      which simplifies the calls and passes the ifc check-bounds test
665    
666    checkpoint55b_post
667    o add a 2D scalar, Z location, exchange_2 routine.
668    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
669      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
670      affects advect_cs results (for the wrong reason): update output.txt
671    o use a more standard discretization for biharmonic viscosity ;
672     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
673      affects results of dome set-up: update output.txt
674    o fix gad_advection.F (CubedSphere part), back to version 1.23
675    o fix bug in mom_vi_del2uv.F (CubedSphere part).
676    
677    checkpoint55a_post
678    o merged code to
679      * prescribe/read time-dependent open boundaries
680        (works in conjunction with exf, cal)
681      * sponge layer code for open boundaries
682      * each boundary N/S/E/W now has its own CPP option
683        (healthy for the adjoint)
684    
685    checkpoint55
686    o up-to-date adjoint of previous breaks
687      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
688      - global_ocean_ebm: adjoint still needs fix (TLM ok)
689      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
690      - carbon: * remove tr1-related adjoint verification
691                * add ptracer as control variable
692    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
693      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
694    
695    checkpoint54f_post
696    o in verification/carbin/ remove experiment related to
697      ALLOW_PASSIVE_TRACER (array tr1 etc)
698      code_ad/ input_ad/ results_ad
699    
700    o add two new packages
701      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
702        + subject to optimization (memory)
703      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
704        + subject to reordering (many GOTOs in the original code)
705        + so far opps is called for every (i,j) point, and then operates in
706          the vertical; one may want to reorder the scheme in order operate in
707          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
708          fields)
709    o overhaul of IO so that we now have flags for MDSIO and/or MNC
710      - all verification tests compile and run with linux_ia32_g77
711      - defaults are compatible with current input files--nothing
712        should change if you were not previously using MNC
713      - MNC output has been added in numerous places (eg. timeave)
714        but there are still a few writes not yet do-able with MNC
715        (this is in progress)
716      - flags now allow for either/or/both use of MDSIO and MNC and
717        documentation will soon follow
718      - numerous small formatting cleanups for ProTeX
719    o add version info (via BUILD_INFO.h) to MNC and stdout
720    
721    checkpoint54e_post
722    o add two new packages
723      - pp81 (Packanowski and Philander, 1981), Richardson number and
724        stratification dependent mixing
725      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
726      - these scheme operate in a similar manner as KPP (without ghat, of
727        course), however there is only one diffusivity that is used for both
728        temperature and salinity (and passive tracers)ç
729    o add offline package
730    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
731      provided by Stephanie Dutkiewicz
732    o genmake2: add ability to search for C compilers and cleanup test output
733      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
734    
735    checkpoint54d_post
736    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
737    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
738      leading to additional shift by 5 days each year of integration
739       (i.e. leading to considerable offset over the years)
740    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
741    o start with no AB and no initial filtering (staggerTimeStep):
742      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
743    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
744      (external loading & cpl import/export stay in forward_step.F)
745    o update coupling interface to work with new staggerTimeStep
746    o change MDSIO ptracers_pickup.
747    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
748    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
749    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
750    
751    checkpoint54c_post
752    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
753      this affects (truncation error) output.txt of test-exp:
754       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
755    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
756    o change Qnet to always be the net heat flux, (+upward).
757      affects (truncation error) output of natl_box exp.: updated
758    o define the max number of passive tracers in PTRACERS_SIZE.h
759    o start to test mnc routinely in exp0
760    o add sea-ice loading (sIceLoad) as a new forcing field.
761    
762    checkpoint54b_post
763    o add testreport "-j JOBS" option for parallel builds (tested and pretty
764       impressive on Altix and Opteron systems)
765    o diagnostics can now write NetCDF files through the mnc package
766    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
767    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
768    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
769      affects (truncation error) output of lab_sea & natl_box exp.: updated
770    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
771    
772    checkpoint54a_post
773    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
774    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
775    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
776    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
777      + internal_wave (shift in writing cg2d_ini_res)
778    checkpoint54a_pre
779    
780    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
781      - modified verification/lab_sea and natl_box_adjoint accordingly
782    
783    checkpoint54
784    checkpoint53g_post
785    o prepare splitting of thermodynamics: store convect.counter in common block
786    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
787      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
788    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
789    o new parameter "nShapS": allow to treat differently S from T (nShapT)
790    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
791    o restore adjointability
792    
793    checkpoint53f_post
794    o modifications that affect AIM experiment results (update output.txt):
795      - no advection of S at top interface Nr (pkg/generic_advdiff)
796      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
797    o AIM pkg:
798      - include stability function into surf.Flux derivative relative to Tsurf
799      - calculate clear-sky radiation & surface temp. change (for diagnostics)
800    
801    checkpoint53e_post
802    o merged cylindrical coord configuration
803    o added rotating_tank experiment
804    checkpoint53e_pre
805    
806    checkpoint53d_post
807    o faulks upgraded: re-generate output.txt that have changed:
808       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
809    o Added Bryan and Lewis, 1979, vertical diffusivity profile
810    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
811    o added Sadourny discretization of Coriolis
812      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
813      - re-enabled use of omega3 (useAbsVorticity)
814    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
815      vector-invariant equations
816      - note: does *NOT* yet use same variable visc. for no-slip BC's.
817    o recoded the lateral boundary conditions for non-hydrostatic w, this time
818      hopefully without new bugs
819      - still to do: biharmonic friction for non-hydrostatic w
820    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
821    o regenerated output for global_ocean_ebm (using -ieee)
822    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
823      of mom_common/
824      - simple re-arrangement of instructions within computing loop
825    checkpoint53d_pre
826    
827    checkpoint53c_post
828    o new version of coupler for AIM+thSIce and Ocean models
829     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
830     - land: change Evaporation of snow
831     - aim with thSIce: fix bug in snow-precip.
832    o changes to calc_gw.F
833     - bug fix for w^2 term near the bottom boundary
834     - (hopefully) improve the lateral slip boundary condtions for use with
835        partial/looped cells
836      - because the bug fix changes two verification experiments anyway (exp5
837        and plume on slope), change the lateral boundary condition from half slip
838        to the value of no_slip_sides
839    o ebm package wasnt quite up to the parallel task. Fixed that.
840    o Adjoint of EBM package + verification
841      * TLM OK
842      * ADM not sufficient accuracy yet (needs further testing)
843    
844    checkpoint53b_post
845    o Commiting new energy balance model to repository
846      * package is pkg/ebm
847      * verif. is verification/global_ocean_ebm
848      * references are in ebm_driver.F
849    C      * X. Wang, P. Stone and J. Marotzke, 1999:
850    C        Global thermohaline circulation. Part I:
851    C        Sensitivity to atmospheric moisture transport.
852    C        J. Climate 12(1), 71-82
853    C      * X. Wang, P. Stone and J. Marotzke, 1999:
854    C        Global thermohaline circulation. Part II:
855    C        Sensitivity with interactive transport.
856    C        J. Climate 12(1), 83-91
857    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
858    C        Destabilization of the thermohaline circulation
859    C        by atmospheric eddy transports.
860    C        J. Climate 7(12), 1870-1882
861    o Will need long integration testing.
862    checkpoint53b_pre
863    
864    o created pkg/mom_common in preparation for variable viscosity code
865    o renamed and split ini_mnc_io
866    o pkg/land: only liquid water can diffuse or run-off
867    o AIM using land: soil wetness availability account for snow
868    o added printMapIncludesZeros to EEPARMS namelist
869    
870    checkpoint53a_post
871    o restore TAMC compatiility for exf_constants.h
872      (no usage of _d in .h)
873    o Additional storing in KPP in an attempt to fix
874      TAMC problem with adjoint of KPP code.
875      (no success...)
876      Identical code works fine with TAF.
877    o Fixed verification/natl_box_adjoint experiments.
878      Initial conditions for Experiments 4 and 5 are now
879      set to "SEAICE_initialHEFF=0", which is more reasonable,
880      and hence gives results closer to that of Experiment 2.
881      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
882    
883    checkpoint53
884    o stable checkpoint with up to date adjoint
885      TLM tests only run for 1st grdchk at the moment. Its unclear if
886      this is a code problem or a problem with resetting code for g_
887      variables that is being autogenerated wrong.
888      Otherwise:
889       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
890       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
891         are both still in chaos following their security messes.
892    
893    checkpoint52n_post
894    o various build (mostly genmake2) changes including:
895      - ability to build/run more easily within Cygwin and MacOS X
896      - more complicated Makefiles with a stronger dependence on Gnu Make
897    o pkg/seaice modifications
898      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
899        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
900        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
901      - changed proxy for geostrophic velocity and updated
902        verification/lab_sea/results/* accordingly
903      - removed ADI dynamic solver from pkg/seaice
904      - replaced all occurrences of 1/CSTICE or 1/CSUICE
905        they caused a segmentation fault under certain circumstances
906      - removed unused field WATR
907    o bug fix in exf-package:
908      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
909         now reflect that.
910    o small fixes in the cal-package:
911      - set reference date to first of January for the 'model'-calendar
912      - failing of cal_CheckDate in cal_FullDate now actually results in a
913        warning
914    o small modifications in exf-package to increase flexibility:
915      - change climtempfreeze from a constant to a runtime parameter that
916        is specified in data.exf_clim (default = -1.9)
917      - introduce runtime parameter windstressmax (default = 2.0) that is
918        specified in data.exf
919    o fix in pkg/thsice:
920      - update Evap (Tsf changes) to be consistent with Latent heat flux
921      - maintain snow precipitation unchanged (even if Tsf >=0).
922     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
923    
924    checkpoint52m_post
925    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
926      this does not change any of the results, because myIter=0 in swfrac always
927      lead to jwtype=2 (the default anyway), but the call makes little sense
928      as a default
929    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
930    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
931      atmospheric model (AIM) to use it ; add a "slab ocean" component.
932    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
933    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
934    o extending useSingleCpuIO option to work with new exch2 I/O format
935      - old-style, missing-tile I/O is still accessible by defining CPP
936        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
937    o monitor package can write to NetCDF files and/or STDOUT
938    o fix re-definition bug in MNC_GRID_INIT_ALL()
939    o doc/api_reference added
940      - a framework for building an API Reference Manual using all
941        the "protex" comments embedded in the code
942      - see pkg/generic_advdiff, pkg/mnc for examples
943    o MNC:
944      - make myThid the last argument for all subroutines
945      - new default for the grid files: NO halos
946      - add useMNC and other run-time flags
947      - separate per-file-group handling of the unlimited dimension
948      - early initialization of MNC w/ flags read at the eeboot stage
949        and lookup tables set in initialize_fixed
950      - write all MNC output to a freshly-created directory
951    o thermodynamics sea-ice (thsice) is now tested with testreport.
952    o test exp. advect_cs: use the standard cs32 grid ; update output.
953    o Added functionality to grdchk:
954      pick global i,j,k position (or nearest wet) where to perform check.
955    
956    checkpoint52l_post
957    o new land formulation:
958      a) use ground enthalpy as prognostic variable to ensure exact
959         energy conservation.
960      b) account for water temperature and for latent heat of freezing
961         in all processes (rain, run-off, ground storage)
962      c) compute surface and ground temperature implicitly.
963    o aim_v23 modification for new land model:
964      a) Treat separately land / ocean / sea-ice surface fluxes
965         to allow implicit computation of land & sea-ice surface temp.
966      b) add snow precipitation.
967    checkpoint52l_pre
968    
969    o fix problem (when 1 tile is empty) in min/max monitor.
970    o fix bug in timeAve (u,vZetatave in common block)
971    o no restoring terms under ice for pkg/seaice
972    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
973    o bug fix for pkg/seaice pickups
974    o change MNC call locations and add coordinate attributes
975    o mask vorticity at the corner ; affects global_ocean.cs output
976    o fix ini_curvilinear_grid ; test CS experiments with mpi
977    o aim.5l_cs: modify sea-ice fraction input file ; update output
978    o exf: Adding simple range check routine for exf fields after read
979    
980    checkpoint52k_post
981    o removed top-level directory "diags"
982      - we migrated these functions to pkg/timeave a long time ago
983    o fixed bug introduced in pkg/monitor
984    o accuracy ctrlprec = 32 insuffient for gradient checks using
985      averaged fields (I/O via cost_averages)
986      -> use ctrl.h in active_file*.F to control I/O precision.
987    o paramter list of CALL ADTHE_MAIN_LOOP
988    o added initial do_the_model_io to ecco
989    o set all ...Freq to zero after cost_final
990      taveFreq, dumpFreq, pChkptFreq
991    o MAIN and ECCO differentiability restored
992    
993    checkpoint52j_post
994    o fix nchklev in tamc.h for global_ocean...
995    o Bringing flow and store directives up-to-date
996    o Really weird thing!
997      call do_the_model_io from the_main_loop with parameters
998      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
999      TAF places a faulty re-call of initialise_varia
1000      after cost_final call which should not be there!
1001    checkpoint52j_pre
1002    
1003    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1004      error messages
1005    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1006    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1007      debug output
1008    o modfied mdsio_writefield.F to handle non-global files under exch2
1009    o update AIM Cubed-Sphere exp (aim.5l_cs):
1010      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1011    o update AIM Equatorial Channel exp:
1012      use standard aim_v23 pkg and change the SST fields to be more realistic.
1013    o globalFile now works with exch2
1014    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1015      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1016    o limit timeave output for hi-res integrations
1017    
1018    checkpoint52i_post
1019    o removed CPP_EEOPTIONS.h from verification/*/code
1020    o updated the tiling for global_ocean_pressure
1021    checkpoint52i_pre
1022    
1023    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1024      the old pkg/aim).
1025    
1026    checkpoint52h_pre
1027    o shortened offending lines in exch2_send_rx?.template
1028    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1029    o genmake2: add build & execute test for NetCDF code
1030    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1031      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1032    o added useSingleCPUIO flag to monitor.F and mon_out.F
1033    o added temporary hack for sea-ice dynamics on the cube:
1034      metric terms are ignored and it is assumed that
1035      there is no sea-ice on cube faces 1, 2, 4, and 5.
1036    
1037    checkpoint52f_post
1038    o added exch2 cube routines to pkg/exch2
1039    o modified hs94.cs-32x32x5 to use it
1040    o added new grid files to hs94.cs-32x32x5
1041    checkpoint52f_pre
1042    
1043    checkpoint52e_post
1044    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1045      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1046    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1047      to work with implicit vertical advection and AB ;
1048    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1049    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1050     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1051    checkpoint52e_pre
1052    
1053    o fix bug in impldiff when Nr=1 or Nr=2.
1054    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1055    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1056    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1057      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1058    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1059    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1060    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1061    
1062    checkpoint52d_post
1063    o re-tiled many expts to allow comparison in multi-processor mode
1064      - updated output accordingly
1065      - changed hs94.128x64x5 to use intial T from file rather than use the
1066        random number generator
1067    o add infrastructure in model routines for fizhi and gridalt packages
1068    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1069    o changes to permit hi-res, cubed-sphere, configuration
1070      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1071      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1072      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1073        of surface winds for the cube
1074      (A verification experiment, based on global_ocean.cs32x15, but with
1075       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1076       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1077       complete with example surface forcing files and matlab scripts to look
1078       at the output and compare it with that of global_ocean.cs32x15.)
1079    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1080       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1081       to conform to the common rule.
1082    o check-in the first version of the coupler + interfaces for multi-components
1083       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1084       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1085       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1086       - ocean and atmos. share the same horizontal grid (no interpolation).
1087       - exchanges between component and coupler is done in forward_step
1088    o new verification experiment, cpl_aim+ocn:
1089       coupled ocean - AIM atmosphere on cs32 grid.
1090    
1091    checkpoint52d_pre
1092    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1093    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1094    
1095    checkpoint52c_post
1096    o Fixing OPTIONS files for use of exf:
1097      - ALLOW_ECCO not needed
1098      - ECCO_CPPOPTIONS.h should not be included from
1099        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1100        as has been the case in the past
1101      - All cal/exf related options are currently set in
1102        single header file. Should remain so until we
1103        agree on a consistent new policy.
1104    o Removed all CPP options for cal package.
1105      cal has no more CPP options.
1106    o modified STOREs in GAD_ADVECTION
1107    o corrected key comp. for passkey
1108    
1109    checkpoint52b_post
1110    o new version: "thsice" of thermodynamic sea-ice pkg:
1111     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1112     - modify fluxes but do not change theta directly;
1113     - light cleaning of bulk_force pkg (still needed with thsice).
1114     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1115       + output_thsice.txt to test thsice & bulk_force pkgs.
1116    o put back grid & coriolis monitor output.
1117    checkpoint52b_pre
1118    
1119    o call "do_the_model_io" at the beginning (=> dump initial state)
1120    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1121    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1122      (need info on NUMBER_OF_PTRACERS)
1123    o missing PTRACERS headers in some routines
1124    o default tamc.h in pkg/autodiff supposed to crash
1125      to ensure proper customization
1126    
1127    checkpoint52a_post
1128    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1129      - moved surfaceTendencyTice from pkg/seaice to main code
1130      - subroutine FREEZE_SURFACE now limits only surface temperature
1131        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1132        => new output.txt for global_ocean.cs32x15 & global_with_exf
1133      - keep the old version of FREEZE for backward compatibility;
1134        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1135      - corresponding modifs for TAF directives
1136    o added surface flux output variables to TIMEAVE_STATVARS
1137    o time-averaged output for pkg/ptracers
1138    o fix problem with ECCO-related divided adjoint
1139      snapshot file was missing some ad-variables,
1140      but no warning issued by TAF
1141    
1142    checkpoint52a_pre
1143    o some bug fixes for #undef REAL4_IS_SLOW
1144    
1145    checkpoint52 = ecco_c52_e35
1146    o after testing adjoints of checkpoint51u_post
1147    
1148    checkpoint51u_post
1149    o this is the post-merge tag of the ecco-branch
1150      (needs another clean checkout and re-testing)
1151    o various natl_box_adjoint configs and results
1152      but no input fields
1153    o obcs adjoint not yet merged!
1154    o adding ECCO global 1x1 and 2x2 degree configs
1155    o updated/extended some store directives for seaice
1156    o pkg/ecco now containes ecco-specific part of cost function
1157    o top level routines the_main_loop, forward_step
1158      supersede those in model/src/
1159      previous input data.cost now in data.ecco
1160      (new namelist ecco_cost_nml)
1161    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1162    
1163    checkpoint51t_post
1164    o this is the pre-merge tag of the ecco-branch
1165    
1166    checkpoint51s_post
1167    o cleanup: removed various obsolete #define-s
1168    o pkg/grdchk
1169      - renamed 'ph-grd 3' to 'grad-res'
1170      - merged from ecco-branch
1171        (remaining bug fixes for obcs gradient checks)
1172      - additional high-precision output for testreport
1173        (grep for 'precision_grdchk_result')
1174    
1175    checkpoint51r_post
1176    o cleaned up or removed CPP_OPTIONS.h files
1177    o updated results for some of the tests to reflect the new
1178      optfiles (-ieee: -O0 instead of -O3)
1179    
1180    checkpoint51q_post
1181    o cd_code:
1182      - moved cd_scheme.F -> cd_code_scheme.F
1183      - separate read_checkpoint from cd_code_ini_vars.F
1184      - separated cd_code part from write_checkpoint
1185      - updated AD_SOURCE, generated .flow
1186      - added CD_CODE_VARS.h to the_main_loop
1187      - Moving cd_code specific store dir.s to pkg/cd_code
1188    o ctrl package totally restructured
1189      - pack/unpack now optional and decoupled from
1190        xx_/adxx_ I/O
1191      - ctrl_pack/unpack cleaned
1192        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1193      - confined inclusion of AD_CONFIG.h to where necessary.
1194    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1195    
1196    checkpoint51p_post
1197    o create initial cd_code package
1198      - WARNING: the initialization of fields within packages
1199        is broken because INI_FIELDS (where READ_CHECKPOINT is
1200        called) is called *before* PACKAGES_INIT_VARIABLES.
1201        This seems to be backwards since
1202        1) its important to initially zero the entire field including
1203           the "halo" region
1204        2) zeroing needs to be done *before* reading pickup info
1205           and the pickup call might or might not happen in any
1206           particular run
1207      - this needs an overhaul for R2
1208    o cleanup verification/*/code/GMREDI_OPTIONS.h
1209    o cleanup testreport
1210    
1211    checkpoint51o_post
1212    o bringing AD-related verif's up to date with genmake2
1213      - carbon/
1214      - global_ocean.90x40x15/
1215      - hs.94.1x64x5/
1216      - (front_relax/ )
1217    o (more) consistent directory structure for AD-related verif.'s
1218    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1219    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1220    o bug fix in find_alpha.F for MDJWF:
1221      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1222        change rho -> rho-rhoConst
1223      - replace call find_rho to find_rhonum
1224    o initialisation of rFlx extended to full array (required by TAF)
1225      and shifted to thermodynamics
1226    o removed PTRACERS.h in ptracers routine
1227    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1228    o Correcting initialisations for fVerU, fVerV.
1229    o helping TAF to recognize dependency on kUp for
1230      fVerU, fVerV
1231    o Replacing delZ by delR in pkg/ctrl/
1232    checkpoint51o_pre
1233    
1234    o undid all of cp51 pending some cleanups and discussion
1235    o added the [#include "AD_CONFIG.h"] statement to all files that need
1236       it for adjoint/tl #defines
1237     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1238     o removed tools/genmake since it no longer works
1239    
1240    checkpoint51n_post
1241    o modifications to make FREEZE flux visible to pkg/kpp
1242      - moved surfaceTendencyTice from pkg/seaice to main code
1243      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1244      - subroutine FREEZE now limits only surface temperature
1245        (this means new output.txt for global_ocean.90x40x15,
1246         global_ocean.cs32x15, and global_with_exf)
1247    o added surface flux output variables to TIMEAVE_STATVARS
1248    
1249    checkpoint51n_pre
1250    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1251    o added [#include "AD_CONFIG.h"] to all files that use the following
1252      defines:
1253      - ALLOW_ADJOINT_RUN
1254      - ALLOW_TANGENTLINEAR_RUN
1255      - ALLOW_ECCO_OPTIMIZATION
1256    
1257    checkpoint51m_post
1258    o incorporating changes to get TAMC/TAF working in genmake2
1259      - added new TAMC/TAF targets to the Makefile
1260      - various cleanups related to package handling
1261      - these changes should have no impact on the forward model
1262    
1263    checkpoint51l_post
1264    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1265     - faster algorithm for cal_addtime.F
1266     - higher precision arithmetic, where needed
1267     - pkg/exf *startdate variables changed from calendar date to
1268       model integration time
1269    
1270    checkpoint51l_pre
1271    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1272    o enable to apply restoring on S & T only in a latitude band.
1273    o update output (external_forcing_surf modif. change truncation errors)
1274       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1275    
1276    checkpoint51k_post
1277    o change default to: useNHMTerms=.FALSE.
1278     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1279       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1280     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1281        exp1, ideal_2D_oce
1282     - change data file of oceanic exp (leave the results unchanged for now)
1283       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1284    o set gravitySign automatically according to the vertical coordinate used
1285      (and change sign: back to "logical" value: +1 when R increases downward)
1286    o added an include barrier to the default CPP_OPTIONS.h and
1287      removed the #include "PACKAGES_CONFIG.h" from it
1288    o fix a bug in mom_fluxform (from chk51j_post)
1289    
1290    checkpoint51j_post
1291    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1292    o adjusted some flow directives (dynamics, thermodynamics)
1293    o added cubed-sphere case to test cost function
1294    o heckpoint_lev?_directives.h now include
1295      pkg-specific directives, whenever those are enabled.
1296    o Moving pkg-specific flow directives to corresponding pkg
1297      Moving pkg-specific differentiation list to corresponding pkg
1298      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1299      ---> conventions are
1300           - pkg_ad.flow
1301           - pkg_ad_diff.list
1302           - pkg_ad_check_lev?_dir.h
1303    
1304    checkpoint51i_post
1305    o merge of the branch-genmake2
1306      - knowingly breaks the older genmake
1307      - automatic generation of all ALLOW_${PKG_NAME} defines
1308      - new testreport supersedes older testscript
1309    o large number of package inclusion and header cleanups
1310    checkpoint51i_pre
1311    
1312    o new output for adjoin of global ocean vector invariant
1313    o fix for checkpoint of thermodynamic seaice and bulk_force
1314    o Steph gchem various cleanups
1315    
1316    checkpoint 51h_pre
1317    o fixed some single quotes
1318    o modify gchem pkg to be more versatile
1319    o modifications to clean up dic pkg
1320    o add pkg/cfc
1321    
1322    checkpoint51g_post
1323    o provide links for ARPACK and ADM*TLM
1324    o start removing verification/vero/
1325    o update AD-related stuff
1326      (in particular some IF-statements in model/src/ routines)
1327    o adding to verification/global_ocean.90x40x15/ adjoint of
1328      vector invariant setup
1329    
1330    checkpoint51f_post
1331    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1332    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1333      of tracer Green's fucntions for ocean inversion project.
1334    
1335    checkpoint51f_pre
1336    o Added on-the-fly spatial interpolation capability
1337        "USE_EXF_INTERPOLATION" to pkg/exf.
1338      - This is a temporary Cartesian-grid hack until
1339        the super-duper ESMF coupler becomes available.
1340      - See verification/global_with_exf/README for usage example.
1341      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1342        flags and modified pkg/seaice accordingly.
1343    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1344        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1345        non-local transport term.
1346    
1347    checkpoint51e_post
1348    o pkg/mom_vecinv:
1349      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1350      - add time-ave diagnostic of vorticity advection.
1351    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1352    o atmospheric geopotential: - include water vapor effect;
1353                                - use p^kappa in p* scaling.
1354    o land pkg: read initial state from files.
1355    o AIM : add stratospheric drag in the upper level
1356    
1357    checkpoint51d_post
1358    o change function ILNBLNK (=> last non-blank char.) to return zero
1359      (instead of the string length) when the string. char is empty
1360    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1361    o modif's to restore TAMC compatibility
1362      - avoid "_d" constructs in PARAMETER declarations
1363      - avoid interrupting lines by comment lines
1364    o Use cluster local disks for purely local I/O
1365      vs. globally visible disks needed for ctrl stuff
1366      (merged from ecco-branch)
1367      - new active_file_loc... and mdsio_..._loc routines
1368      - affected packages: autodiff, ctrl, grdchk, mdsio
1369    
1370    checkpoint51c_post
1371    o introducing integer flag debugLevel
1372      - debLevZero: suppress all output
1373      - debLevA: standard
1374      - debLevB: equivalent to current debugMode=.TRUE.
1375    o introducing pathname variable mdsioLocalDir for mdsio
1376      that can be specified at runtime
1377      (relevant for cluster I/O to local disk)
1378    `
1379    >>>checkpoint51b_post
1380    adjoint of ptracers
1381    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1382    o extended state in checkpoint_lev?, etc.
1383    o alternative ctrl/cost with tr1 or ptracer
1384    o new comlev1_bibj_ptracers
1385    o new ptracers.flow
1386    o made ptracers_forcing same as external_forcing_s
1387    o added verification for adjoint with ptracers
1388      - adm. grdchk fail so far
1389      - tlm. grdchk OK
1390      - checked tapelev/comlev recomputations: OK
1391    <<<checkpoint51b_pre
1392    
1393    checkpoint51a_post
1394    o added code for biogeochemistry package
1395      - new pkgs: dic, gchem
1396      - new subroutine in ptracers
1397    o modify code for biogeo packages
1398      - in model/src and pkg/ptracers
1399    
1400    checkpoint51
1401    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1402      - autodiff, ctrl, exf, grdchk, seaice
1403      kept separate packages
1404      - cost, ecco, obcs
1405    o updating verification/internal_wave, verification/lab_sea
1406      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1407    
1408    checkpoint50i_post
1409    o Preparing next differentiable checkpoint and sync
1410      of MAIN vs. ecco-branch
1411      - 1st step: this one is differentiable
1412      - 2nd step: next(! not this) checkpoint will have updated packages
1413                  from ecco-branch)
1414    
1415    checkpoint50h_post
1416    o new package "land": provide surface BC for AIM.
1417    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1418    o AIM: use true log-P extrapolation for near surface temp (= as in
1419        F.Molteni paper) ; update aim.5l_cs output.
1420    o New variable in PARM03 for more flexible pickups
1421    o somewhat cleaned package initialisation sequence for
1422      ctrl/ cost/ ecco/ in packages_... routines
1423    
1424    checkpoint50g_post
1425    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1426      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1427      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1428        made the default because of faster convergence than ADI
1429    
1430    checkpoint50f_post
1431    o exf totally restructured
1432      - replaced all exf_set_ routines by one generic exf_set_gen.F
1433        and made sure it's still differentiable
1434      - split exf_getffields.F into new exf_bulkformulae.F
1435      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1436      - updated adjoint/makefile and relevant verif. accordingly
1437    
1438    checkpoint50f_pre
1439     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1440          + change Evap over land. (update aim.5l_cs output)
1441     o added missing .cvsignores and made uniform across expts
1442     o changed configuration of tidal_basin_2d expt
1443     o added pkg/debug functions for tracing code in fatal crashes
1444     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1445     o new fn in pkg/monitor to stop model if solution grows too big
1446     o removed lots of single quotes from comments
1447    
1448    checkpoint50e_post
1449    o make KPP work with PTRACERS
1450     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1451       nearly a copy of kpp_transport_s
1452     - there is no analogue to SurfaceTendencyS, so I have to use
1453       gPtr(of the surface layer) instead
1454    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1455    checkpoint50e_pre
1456    
1457    checkpoint50d_post
1458    o change kpp output from multiple-record state files to single-record state
1459      files analogous to write_state.F
1460    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1461      analogous to the cg2d-related output.
1462    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1463      so that writing to internal file fn (with length 512) fails.
1464    checkpoint50d_pre
1465    
1466    checkpoint50c_post
1467    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1468    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1469    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1470    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1471    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1472    
1473    checkpoint50c_pre
1474    Merging from release1_p13:
1475    o bug fix for pkg/seaice dynamic solver
1476    o Added SEAICE_initialHEFF to pkg/seaice
1477    
1478    checkpoint50b_post
1479    o store u*,v* in gU,V instead of in guNm1,gvNm1
1480    o in order to put the momForcing out of the Adams-Bashforth:
1481      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1482      to timestep.F
1483    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1484    o re-generate output for highly sensitive test-exp:
1485       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1486    
1487    checkpoint50b_pre
1488    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1489    o corrected CPP option mismatch in exf_Bulk... functions for case
1490      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1491    
1492    checkpoint50a_post
1493    o Bug fix for merging between c50 and KPP.
1494      ikey was passed from thermodynamics to kpp_calc via
1495      common block rather than being recomputed in kpp_calc,
1496      in contradiction with new key itdkey.
1497      New key ikppkey created, and tamc.h headers updated.
1498    
1499    checkpoint50
1500    - 2nd step of merge with ecco-branch:
1501      merge changes in ecco-branch back into main trunk
1502    - bug fix in find_alpha
1503    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1504    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1505    - merged some sliced AD support routines
1506    
1507    checkpoint49
1508    merged from ecco-branch:
1509    o exf:
1510      - Enable initialisation of forcing fields to constant
1511        (runtime) values.
1512      - in exf_getffields.F
1513        Reduce i-/j-loop to interior domain, discarding overlaps.
1514        That also fixes wrong TAF-key computations for key_1, key_2
1515        with bulf formulae.
1516      - exf_init.F modify #ifdef for exf_init_evap
1517      - exf_getffieldrec.F, ctrl_getrec.F
1518        The following INT-usages are not safe:
1519          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1520          fldcount = int(fldsecs/fldperiod) + 1
1521        and were modified.
1522    o autodiff: checkpoint_lev...
1523      - updated storing for bulk formulae (some arrays were missing)
1524      - added state for seaice package
1525      - synchronized with main branch
1526    o DIVA:
1527      Modif.s in
1528      - the_main_loop.F
1529      - the_model_main.F
1530      and added cost_final_restore.F cost_final_store.F
1531      o With these changes, it is possible to fully separate
1532        the first forward run to compute the cost function (mdthe_main_loop)
1533        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1534        into separate model executions.
1535        This enables better tuning of DIVA to given queue sizes.
1536      o Loss of cost function value in consecutive DIVA runs is
1537        fixed by storing to 'costfinal' file.
1538      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1539        beginning/end of adjoint integration is accounted for.
1540      The current changes apply to TAF-1.4.26.
1541      TAF has one remaining bug, requiring one manual change
1542      (see MITgcm manual).
1543    o cal: synchronized between MAIN and ecco-branch
1544    
1545    checkpoint48i_post
1546    o Changes to restore differentiability of code w.r.t. previous tag
1547      (mostly adding new routines to make list and replacing
1548      pressure by totPhiHyd).
1549    o Updated and merged grdchk package
1550      - has both ADM and TLM checks
1551      - works for single- and multi-proc.
1552      - output cleaned
1553      - worked successfully for parallel DIVA
1554    o genmake:
1555      - Adding -platform=SP4
1556      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1557    o Modif. for DIVA:
1558      ctrl_unpack should not be called in intermediate DIVA interval.
1559      (similar thing would apply for active files such as
1560      tbar, sbar, psbar, which should not be reinitialised;
1561      only relevant for ecco-branch)
1562    
1563    checkpoint48h_post
1564    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1565    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1566    o Added SEAICE_initialHEFF to pkg/seaice
1567    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1568    
1569    checkpoint48g_post
1570    --- EOS:
1571    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1572      store total Potential in totPhyHyd for diagnostics & EOS.
1573    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1574    --- Pressure/geopotential gradient:
1575    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1576    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1577      ( changes results of global_ocean_pressure )
1578    o NLFS + z-coord.: add eta*Rho' contribution.
1579    o accurate phiHyd when using interface-W at the middle between 2 centers
1580     ( changes results of ideal_2D_oce )
1581    o includes r* 2nd term in potential gradient.
1582    
1583    checkpoint48f_post
1584    Merging from release1_p12:
1585    o Modifications for using pkg/exf with pkg/seaice
1586      - improved description of the various forcing configurations
1587      - added basic radiation bulk formulae to pkg/exf
1588      - units/sign fix for evap computation in exf_getffields.F
1589      - updated verification/global_with_exf/results/output.txt
1590    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1591      (SBO) core products, including oceanic mass, center-of-mass,
1592      angular, and bottom pressure (see pkg/sbo/README.sbo).
1593    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1594      to avoid negative values in shallow regions.
1595      - updated verification/natl_box/results/output.txt
1596      - updated verification/lab_sea/results/output.txt
1597    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1598    o Added useSingleCpuIO option (see PARAMS.h).
1599    o Updated useSingleCpuIO option in mdsio_writefield.F to
1600      work with multi-field files, e.g., for single-file pickup.
1601    o pkg/seaice:
1602      - bug fix in growth.F: QNET for no shortwave case
1603      - added HeffFile for specifying initial sea-ice thickness
1604      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1605    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1606      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1607    o pkg/seaice:
1608      - adjoint-friendly modifications
1609      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1610    
1611    checkpoint48e_post
1612    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1613    o dynamics: change definition of computational domain & adapt mom_fluxform
1614      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1615    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1616        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1617        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1618        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1619        inverted_barometer solid-body.cs-32x32x1
1620      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1621    
1622    checkpoint48d_post
1623    o in preparation for r*:
1624     a) use pre-computed gradient of hydrostatic potential:
1625        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1626     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1627        => affects results of glob_oce_pressure (different truncation error)  
1628      update output.txt of ideal_2D_oce & global_ocean_pressure
1629    
1630    checkpoint48d_pre
1631    o in preparation for r*:
1632      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1633      pass the 2 comp. of the grad. as arguments to momentum S/R.
1634      but for the moment, only used if it does not change the results.
1635    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1636    
1637    checkpoint48c_post
1638    Modifications in treatment of initial flux forcing controls
1639    to avoid extra storing of flux fields.
1640    
1641    checkpoint48c_pre
1642    o Added tidal_basin_2d experiment (currently 1D!)
1643    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1644    
1645    checkpoint48b_post
1646    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1647     (modification to pressure gradient not yet implemented)
1648    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1649      (for U & V) that are used for vertical advection of momentum.
1650    
1651    checkpoint48a_post
1652    o In preparation for r*, use temp. array to compute vertical transport
1653       in flux-form momentum pkg. => change results of few test-exp.
1654      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1655                        lab_sea, natl_box & plume_on_slope
1656    
1657    checkpoint48
1658    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1659    
1660    checkpoint47j_post
1661    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1662    o moved adexch from forward_step to addummy_in_stepping
1663    o added exch in ctrl_map_...
1664    o aveFreq.=0. at end of cost_final to avoid overwrite in
1665      reverse checkpointing loop
1666    o Yet more changes in gmredi:
1667      * adgmredi_calc_tensor
1668        avoiding all recomputation of gmredi_slope_limit
1669      * adgmredi_x/y/rtransport
1670        added flag for excessive storing to avoid recomp. of
1671        u/v/rtans, dTdx/y/z
1672        -> this is not really necessary and very memory-consuming
1673      * adgmredi_slope_psi:
1674        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1675      * gmredi_slope_limit
1676        re-activated full calculation of taperfct for case 'ac02'
1677    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1678    
1679    checkpoint47i_post
1680    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1681    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1682      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1683    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1684    o gmredi: fix few bugs.
1685    
1686    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1687    This will be a good checkpoint to plug into the ecco-branch.
1688    o few modif.'s to get latest version adjointed
1689      (mainly kick out code in ini_linear_phisurf)
1690    o modif's to run adjoint with exactConserv
1691    o case GM_BOLUS_ADVEC should be cleaned
1692      S/R gmredi_slope_psi should be cleaned
1693    o verification/carbon now has exactConserv=.TRUE.
1694    
1695    checkpoint47g_post
1696    o time-average AIM output: becomes independent from statvars time-average
1697      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1698    o After TAF bug fix:
1699      Tested adjoint of gmredi package.
1700      Tests were done with checkpoint47 rather than with latest
1701      checkpoint47f_post since the latter is broken for the adjoint
1702      verification/carbon/ contains both ADM and TLM gradient checks.
1703    Here they are, before they get changed/lost/stolen.
1704    Mostly modif.'s to fix numerical sensitivities.
1705    Gradient checks OK for
1706    - GM_taper_scheme:
1707      * clipping
1708      * ac02
1709      * linear
1710      * glw91
1711      * dm95
1712      * ldd97
1713    - GMREDI_OPTIONS:
1714      * GM_VISBECK_VARIABLE_K
1715      * GM_NON_UNITY_DIAGONAL
1716      * GM_EXTRA_DIAGONAL
1717      * GM_BOLUS_ADVEC
1718    in conjunction with data.gmredi parameters to be checked in
1719    in a few minutes under verification/carbon/code/
1720    
1721    checkpoint47f_post
1722    Merging from release1_p10:
1723    o modifications for using pkg/exf with pkg/seaice
1724      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1725        and SEAICE_EXTERNAL_FLUXES
1726      - pkg/exf CPP options EXF_READ_EVAP and
1727        EXF_NO_BULK_COMPUTATIONS
1728      - usage examples are Experiments 8 and 9 in
1729        verification/lab_sea/README
1730      - verification/lab_sea default experiment now uses
1731        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1732    
1733    checkpoint47e_post
1734    o created a tag prior to creating a branch
1735    
1736    checkpoint47d_post
1737    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1738      at the bottom boundary had an erroneous half slip boundary condition
1739    o added bottom drag and no slip boundary condition capabilities to
1740      oceanic pressure coordinates code
1741    o added new verification experiment global_ocean_pressure, this experiment is
1742      also described in the tutorial section of the manual
1743    checkpoint47d_pre
1744    
1745    checkpoint47c_post
1746    o Added a verification experiment for a global cubed-sphere ocean run
1747      -  verification/global_ocean.cubed32x32x30
1748      -  uses pkg/therm_seaice and pkg/bulk_forcing
1749    
1750    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1751    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1752      when using P-coordinate; only implemented for atmospheric config.
1753    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1754      NOTES: requires option NONLIN_FRSURF to be "#define".
1755    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1756    
1757    checkpoint47b_post
1758    Merging from release1_p9:
1759    o pkg/seaice
1760      - removed GOTO's and added taf directives
1761      - double precision constants to reduce the g77 (Linux)
1762        to F77 (SGI) differences reported in release1_p8
1763    o tools/genmake
1764      - added SGI options
1765    o verification/testscript
1766      - updated to that of checkpoint47a_post
1767    o verification/global_ocean.90x40x15/input/eedata
1768      - modified for SGI f77 compatibility
1769    o verification/lab_sea
1770      - added description of sea-ice model
1771      - added missing matlab routines
1772      - added test of thermodynamics parallelization
1773    
1774  checkpoint47a_post  checkpoint47a_post
1775  o new pkg: aim_v23  o new pkg: aim_v23
1776   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
# Line 13  o new pkg: aim_v23 Line 1781  o new pkg: aim_v23
1781  o add diagnostic of surface correction term in monitor output  o add diagnostic of surface correction term in monitor output
1782    
1783  o bulk_force and therm_seaice  o bulk_force and therm_seaice
1784    - Two packages:  bulk_force (Bulk forcing)
1785      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1786    - Earlier integration from Stephaine Dutkiewicz
1787      and Patrick Heimbach.
1788    - Two ifdef statements for compile time,
1789       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1790    
1791  checkpoint47  checkpoint47
1792  differentiable version of checkpoint46n_post  differentiable version of checkpoint46n_post

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