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revision 1.14 by cnh, Tue Sep 29 18:57:53 1998 UTC revision 1.561 by jmc, Fri Oct 7 00:36:29 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 reduce number of exch calls in shap_filt (s2).
8    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
9      truncation level) 4/5 MLAdjust test results (11&12 digits match).
10    
11    checkpoint57t_post
12    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
13    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
14      same truncation, independent of the face number: affects affects several
15      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
16    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
17      note that biharmonic viscosity + no-slip was not tested in any experiment.
18    o fix bug in non-linear free-surf side-drag ; generate new output for
19      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
20    o make mnc honor the writeBinaryPrec flag for most kinds of output
21    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
22    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
23      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
24    o add brackets in multi-terms sum to get same truncation, independent of
25      the face number (manage to get exactly same value of gU,gV at the cs-edge)
26      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
27    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
28      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
29      a maximum grid-scale Reynolds number.  Also, changes all length calculations
30      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
31      Suggested values of viscosity parameters found in mom_calc_visc.
32      Many new viscosity diagnostics available.
33    
34    checkpoint57s_post
35    o Add clearing-house for viscosity calculations, mom_calc_visc and
36      correct numerous bugs in LeithD and Smagorinsky discretizations.  
37      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
38      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
39      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
40      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
41      The Strain-Tension form is now called with useStrainTensonVisc=.true.
42      ViscAhStrain and viscAhTension are now retired.
43    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
44    o In response to JMC's bug report, genmake2 now ignores any soft-links
45      that it finds in the *current* directory when searching for files.
46      Soft-links found in any other source directories will still work as
47      they did before.
48    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
49      a C routine to unlimit the stack size
50    o mnc-ify pkg/aim snapshot vars
51    o mnc-ify pkg/land as requested by Daniel
52    o various changes to mnc including:
53      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
54      - output can now be grouped so that all files within a group
55          change the ITER portion of their names in lock-step together
56      - can now read ("global") PER-FACE (in addition to PER-TILE) files
57          and works with both EXCH1 and EXCH2 (but needs more testing)
58      - writing works for all verification test cases w/ g77 on Linux
59    
60    checkpoint57r_post
61    o make MNC variable initialization happen earlier
62    o add diagnostics for (almost) each term of the momentum Eq.
63    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
64    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
65    o remove MINIMAL_TAVE_OUTPUT option ;
66      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
67    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
68      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
69    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
70    o add time-dependent SST, SSS control
71    o cost terms in ecco/ modularized (new cost_generic.F)
72    o cost_averages routines are modularized (new cost_averagesgeneric.F)
73    o new infrastructure for seaice model vs. obs misfits in seaice/
74      * driver from the_main_loop.F is seaice_cost_driver.F
75      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
76      * gradient check in Exp. 6a of natl_box_adjoint/
77    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
78      (see README file)
79    
80    checkpoint57q_post
81    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
82    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
83      - bug was reported by Jean-Michel and Ian Fenty
84    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
85      update exp. cpl_aim+ocn output.
86    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
87      Needed for high-res. runs with large global files
88      to be able to limit tapelev size
89    o Changed some tests for adjoint:
90      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
91      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
92      * global_ocean.90x40x15/ back to default 3-level checkpointing
93    o Modifications to enable scripted COMMON to MODULE conversion
94      * verification/OpenAD/code/ has necessary scripts and description;
95      * converts, compiles and runs successfully;
96    
97    checkpoint57p_post
98    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
99    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
100      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
101    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
102    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
103      (was already the case for dissipation with mom_vecinv,
104       and also the case for grad.PhiHyd when staggered-timeStep)
105      This will allow to put dissipation out-off the AB time-stepping.
106     Unfortunately, affects truncation error. Update output of exp. that "fails"
107      (cg2d matching number) and leave the others for later: front_relax(10),
108      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
109      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
110    
111    checkpoint57o_post
112    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
113      (2) its ready to be documented during the 20050801 DocFest
114    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
115      for ideal_2D_oce and lab_sea on linux_ia32_g77
116    o set to #undef CTRL_SET_OLD_MAXCVARS_30
117      in global1x1_tot/code_seaice_adj to access indices 32, 33
118      (worth another tag)
119    
120    checkpoint57n_post
121    o adding precip control xx_precip 32
122    o adding swflux control xx_swflux 33
123    o Replacing 10 forcing penalty cost routines by 1 generic.
124    o Implementing partitioning in time-mean and variable adjustment
125      for atmos. state.
126    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
127    o in natl_box_adjoint:
128      * updated exp 1 to 10
129        (but does not have time-mean vs. variable split results yet)
130    o updated global1x1/*_seaice_adj/
131      to incorporate latest changes
132    o enable useSingleCpuIO for mdsio vector routines
133      (applies in particular to tapelev I/O)
134    o removed inefficient K-loop in all active_file*control*.F
135    
136    checkpoint57m_post
137    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
138      and advect_cs (use EXCH-2 and standard cs-32 grid files).
139    o pkg/exch2: filling of face-corner halo regions is optional
140      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
141    
142    checkpoint57l_post
143     tag before updating tutorials (pre-release-2)
144    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
145       for output and interpolation of input fields onto model grid)
146    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
147       Affects results of exp. rotating_tank ; update output.txt.
148    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
149          and taking the square quantity and/or using a fraction-weight field.
150    o fix aim_diagnostics_init.F mate numbers.
151    o add mnc output capability to diagnostics/diagstat and update
152      our cvsignore files for the ACSII output generated
153    
154    checkpoint57k_post
155    o lab_sea now uses diagnostics package and provides a suite of
156      new EXF diagnostics output.
157    
158    checkpoint57j_post
159    o exf
160      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
161        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
162        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
163      * extended diagnostics output
164        - now includes all EXF variables
165        - hs, hl moved to common block
166        - separate S/R for diagnostics, called after ctrl vector is added
167        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
168        - EXFqnet contains true Qnet (i.e. includes qsw)
169      * updated verif. lab_sea, global_with_exf
170      * Rearranging hflux (exf_mapfields -> exf_getforcing)
171        to ensure that diagnostics sees a true EXFqnet
172    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
173    o diagnostics pkg: change pointers so that 1 diagnostic can be used
174      several times with different frequencies.
175    o mnc-ify the thsice package as requested by Daniel Enderton
176      - the monitor--MNC output needs work
177      - many attributes need to be added (most are currently blank)
178    o mnc-ify theaim_v23 package as requested by Daniel Enderton
179      - many attributes need to be added (most are currently blank)
180    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
181    o add Sadourny like discretization to the 4th.O vorticity advection scheme
182    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
183      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
184         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
185    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
186     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
187    
188    checkpoint57i_post
189    o Diagnostics package was changed: diagnostic allocation is now deactivated
190      by setting an empty file name in the namelist (used to be by setting 0 frequency)
191    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
192      add 1rst Order upwind vertical Shear.
193    o add a quick fix for A/B checkpointing in OFFLINE mode
194    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
195      end-run around the C/Fortran linking horror in eesup/src/timers.F
196    o added pkg/runclock: allows user to terminate run based on wall clock
197    o added non-hydrostatic scaling parameter: nh_am2
198    o pkg/my82: futile attempt to make results compiler-independent by adding
199      some "_d 0", etc. no effect.
200    o for mnc output, fill the 'T' coordinate var with myTime and create a
201      separate 'iter' variable for iteration count
202    o pkg/diagnostics:
203      add new capability: output of Global/Regional & per-level statistics ;
204      tested against monitor output (including land & thSIce) on various exp.
205    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
206    
207    checkpoint57h_done
208      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
209      data.diagnostics, data.gchem, data.ptracers) is done.
210    
211    o pkg/diagnostics: prepare for Global/Regional statistics.
212      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
213    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
214      and rename it: DIFFERENT_MULTIPLE
215    
216    checkpoint57h_post
217    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
218    o pkg/diagnostics: change output frequency, now in seconds (instead
219      of Nb of iterations). This requires to change data.diagnostics.
220    checkpoint57h_pre
221    
222    o in mnc, let the user create the output dir if both mnc_outdir_date
223      and mnc_outdir_num are false
224    o add fflags() to pkg/diagnostics which allows one to specify, on a
225      per-file basis, the file precision [default behavior is unchanged]
226    o added diagnostics to pkg/kpp, including computation of mixed layer
227      depth based on a temperature/density criterion
228    o updated verification/natl_box to test the new pkg/kpp diagnostics
229    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
230    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
231    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
232      not mnc -- this mistake was found by JMC and is now corrected
233    
234    checkpoint57g_post
235    o add Adams-Bashforth 3rd Order time stepping:
236      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
237      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
238    checkpoint57g_pre
239    
240    o make lambda[Theta,Salt]ClimRelax spatially varying
241      (default remains spatially uniform constant based on tau)
242    o added new control variables
243      * init. uVel, vVel, etanN
244      * lambda[Theta,Salt]ClimRelax
245    o separate masks used for ctrl_pack/unpack 'from write_grid' output
246      (suggested by G. Forget)
247    
248    checkpoint57f_post
249    o add parameter "baseTime" = model base time = time at iteration zero
250      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
251      account for baseTime shift
252    o move Coriolis arrays from PARAMS.h to GRID.h
253    checkpoint57f_pre
254    
255    o mnc-ifying the seaice package
256    o introduced an alternative length scale calculation for use in the limiting
257      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
258    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
259    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
260      as well as grad(vort3).  Made it compatible with both approximate form
261      for the cubed sphere and full form of these gradients.  Added flag
262      useFullLeith to select between approximate and full form.  
263    o add "d0" in getcon.F to reduce differences between compilers/platforms
264      update output.txt of exp. fizhi-gridalt-hs
265    o change port_rand funtion to allow to set the seed.
266    o fix obscure MNC bug involving conversion between reals and integers
267      - it caused no problems with certain (eg. gcc, ifc) compilers but the
268        new version is now more standards-compliant
269    o adjoint-related modifications
270      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
271      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
272      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
273    
274    checkpoint57e_post
275    o Adding eddy stress controls a la Ferreira et al.
276    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
277    
278    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
279      update output.txt of exp. fizhi-gridalt-hs
280    o add more "Z" dimensions and associated coordinate vars to MNC
281    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
282    o parameter calendarDumps: when set, approximate months (30-31 days) and years
283      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
284      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
285      months and years.  Requires pkg/cal.
286    o diagnostics: add pickup functionality
287      - off by default for backwards compatibility
288      - current version only uses MDSIO -- MNC will be added
289    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
290    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
291    
292    checkpoint57d_post
293    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
294    o modify verification/ideal_2D_oce so that it tests the creation of mnc
295      output from the diagnostics package
296    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
297    o make genmake2 more portable by using ".$FS" instead of ".f" for more
298      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
299    o add coordinate variables to the MNC output from the diagnostics package
300    o change MNC-flags default value: true when useMNC=TRUE
301    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
302      the ability (off by default) to read the grid information using MNC
303    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
304    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
305    o do snap-shot diagnostics at the middle of the time-interval (instead of
306      at the end).
307    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
308      new test for AIM with thSIce + slab-ocean
309    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
310    o move state variable diagnostics to the beginning of the time step ;
311      (note: still needs some work specially for snap-shot diagnostics)
312      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
313    
314    checkpoint57c_post
315    o Change testing option (-ieee) to get closer agreement between g77 & ifort
316    o generate new output.txt files on faulks with g77 & the new -ieee option
317    checkpoint57c_pre
318    
319    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
320      update output.txt of exp. global_ocean.90x40x15
321    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
322      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
323    o add saltFlux(+File) forcing capability with periodicExternalForcing
324    o allow to use pkg diagnostics for GM-Redi & ThSIce output
325    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
326    o improvements for the MNC output from DIAGNOSTICS:
327      - correct handling of the unlimitied dimension
328      - all dims now have associated coordinate variables
329      - variables located at U, V, and Corner ("Z") points are now written
330        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
331        *all* data points are output
332    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
333    o added pkg/seaice/seaice_monitor.F
334    o mdsio_readfield.F can now read files visible only to master MPI process.
335    o pkg/seaice: some test code for ice-modified ocean stress
336    o exf_getffields interpolation defaults to bilinear for all scalar forcing
337      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
338      spurious negative numbers for precipitation and humidity.  Will cause
339      some small numerical differences for integrations using pkg/exf/exf_interp.F.
340    o pkg/ctrl/
341      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
342        May be enabled via doPackDiag
343      *  introduce z-scaling of
344         + gradient (doZscalePack) and
345         + control (doZscaleUnpack)
346    o pkg/mdsio/
347      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
348      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
349    
350    checkpoint57b_post
351    o simplify options in diagnostics_fill arguments (remove weird combinations)
352    o fix MNC coordinate variables so that they now contain per-face index
353      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
354      general, EXCH2 grids are only aligned to a "local" coordinate system
355    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
356    o Implement instantaneous output within pkg diagnostics:
357      setting a negative frequency in data.diagnostics produces
358     "snap-shot" output (as opposed to time-average if freq > 0)
359    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
360      NOTE: change ptracer diagnostics name: use 2 characters to work with
361            more than 9 tracers. Add also diagnostics of advect & diffus flux.
362    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
363      becomes the coordinate variable for the 'T' dimension
364    o add CF-style coordinate variables to MNC
365      - just a first cut:  numbers are meaningless on the cubesphere and
366        missing along the T axis but otherwise it works!
367    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
368    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
369    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
370      this is based directly on what the model compute, so that the content of
371      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
372    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
373    o clean up build options files for SunOS, in particular
374      - remove -traditional from xmakedepend
375      - change -xarch=v9 to -xarch=native for f77
376      - restore use of make (not gmake)
377      - add CC=gcc if using g77
378    o changes per discussion of AM, JMC, & EH3 today:
379      - move redundant "grid" variables out of "state" -- in preparation of
380        creating proper CF-style coordinate variables and in recognition
381        that any/all grid variables can be easily copied (eg. w/NCO) from
382        the grid files into any of the other NetCDF files
383      - *always* output grid variables with MDSIO (this will eventually be
384        changed)
385      - output MNC grid file if useMNC is true
386    o every instance of _END_MASTER() has been found and replaced with
387      _END_MASTER( myThid ) in order to satisfy certain picky Sun
388      preprocessors
389    o re-arrange diagnostics pkg initialisation:
390     - allow each package to extend the available diagnostics list
391     - add some checking and fix small problems (multi-threaded, ...)
392     - new S/R diagnostics_fill (replace fill_diagnostics):
393       look through the short list of active diag. (instead of the long list)
394       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
395    
396    checkpoint57a_post
397    o this set of changes restores TAMC compatibility
398      tested for global_ocean.90x40x15 adjoint on trough
399      (what a pain)
400    
401    checkpoint57a_pre
402    o some modifs in tools/build_options for sunos
403    o call ctrl_pack for ctrl at end for optimcycle=0
404    
405    checkpoint57
406    o add horizontal bi-harmonic viscosity for vertical velocity
407      - new parameter viscA4W (defaults to viscA4)
408      - affects only non-hydrostatic code
409      - to be done: no-slip lateral boundary conditions
410    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
411    o implement Implicit Vertical advection for pTracers
412    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
413      (implemented also for implicit vertical diffusion & advection)
414    o OBCS: extend application of tracer open boundary conditions
415      to a strip beyond the boundary of width Olx/Oly
416    o add call monitor to TAF set of required calls (flow directives)
417      and include in natl_box_adjoint
418    o untangle a few ifdefs related to cost, ctrl, autodiff
419      untangel a few ALLOW_ECCO_OPTIMIZATION
420    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
421      (theta2, salt2 in ecco_cost_weights)
422    
423    checkpoint56c_post
424    o OBCS as control variables
425      - update ctrl_ad_diff.list, obcs_ad_diff.list
426      - remove balance of obcs controls from default
427      - fix index bug nobcs in ctrl_init
428      - fix dummy fields filen in ctrl_pack
429      - add dummy weights for obcs
430    o lsopt: comment out fort.94 output
431    o optim:
432      - remove unnecessary header files
433      - adjusted namelists
434      - add xerbla.F to Makefile
435    o exf:
436      - multiple modifications of exf_check_range
437      - unit change in exf_init_runoff from [m/year] to [m/s]
438    o mdsio:
439      - i/o-vector change debugLevel from debLevA to debLevB
440    
441    checkpoint56b_post
442    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
443      is called from DO_THE_MODEL_IO
444      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
445      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
446      - clean up PTRACERS_WRITE_TIMEAVE a little
447    o add another verification experiment that tests both the cfc-pkg and
448      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
449      reactive tendencies treated inline with regular timestepping
450    o testreport previously did a lousy job of comparing small numbers, so
451      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
452      implemented in the little c-progam tmp_cmpnum.c which is embedded in
453      testreport.
454    o ptracers_monitor: bug fix for MPI
455    
456    checkpoint56a_post
457    o GCHEM: finish reorganizating the package
458      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
459        (introduces another 3D-array for each passive tracer, but only if
460        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
461        gchemTendency is not needed because the timestep is done separately)
462      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
463      - GCHEM is now---more or less cleanly---separate from PTRACERS
464      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
465        so clear to me how that should be done in a general way.
466    o CFC: improve formatting of output in CFC_ATMOS
467    o PTRACERS:
468      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
469        that ALL experiments with ptracers enable can be checked. This makes
470        GCHEM_MONITOR obsolete.
471      - include a runtime parameter PTRACERS_monitorFreq that defaults to
472        monitorFreq
473      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
474    o add PTRACERS (PTR0[1-5]) to testreport output
475    o exf_check_range:
476      * default changed to .TRUE.
477      * will check values for niter0 if debLevA, every timestep if debLevB
478      * STOP in exf_check_range if 'out of range'
479      * range chosen generous to allow for potential extema
480      TBD: a version with stricter range
481           permitted range would be runtime parameters
482    o GMredi:
483      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
484      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
485      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
486    o GCHEM:
487      - move call to GCHEM_FORCING_SEP, so that it is now called before
488        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
489      - introduced a useGCHEM runtime flag and applied it everywhere.
490      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
491        this flag is now only visible within GCHEM-pkg routines.
492      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
493        be replaced by a 3D array that is computed before thermodynamics; for
494        this, the tracer ID iTracer had to be included into the parameter list
495        of ptracers_forcing
496      - set up forward_step to call gchem_forcing, that will replace
497        gchem_forcing_int in ptracers_forcing
498      - cleaning up
499    o small cleaning of exch2: remove files that are also in eesupp/src
500    
501    checkpoint56
502    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
503    o mnc: cleanup "full" files--fixes out-of-memory problem
504    o ECCO-GODAE
505      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
506      * fully merged and updated from SIO code
507        windstress sign change affects
508        - exf_inscal_[u/v]stress
509        - sign of xx_tau[u/v] adjustments
510        - signs in cost_scat
511      * ctrl_get_gen: avoid update of tau[u/v] for first few days
512      * natl_box_adjoint updated and compressed
513      * 2-level checkpoint switch added
514        (tested in EXP. 1 of natl_box_adjoint)
515      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
516    o SVD
517      * first complete, non-hacked version for SVD calculations
518      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
519        performed via direct access files admtlm_vector.it????
520        (via ctrl_[un]pack)
521      * optimcycle is used for ARPACK iteration counter
522        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
523      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
524        and add linear transforms where necessary
525      * controls are initial/final SST, SSS (can be extended; need to check
526        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
527    o mdsio: filename info to both stderr, stdout
528    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
529      from sign change
530    
531    checkpoint55j_post
532    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
533      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
534    o add consistent build directories and .cvsignore files to verification
535    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
536    o make all subroutines 30 or less characters in length for certain older
537      compilers to work (a thorough search only turns up two routines in
538      pkg/ptracers)
539    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
540      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
541    
542    checkpoint55i_post
543    o change arrays for total vertical diffusivity (2.D if explicit,
544      3.D if implicit) ; each ptracer uses its own background value.
545    o added mnc/NetCDF output capability to ocn_compon_interf
546      - added bits to verification/cpl_aim+ocn so that it can run on
547        ITRDA and other clusters without the mpirun "-wd" option
548    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
549      configuration
550    o give MNC the ability to create additional files rather than
551      exceeding a specified file size limit "MNC_MAX_FILESIZE"
552      - the default is just less than 2GB which is a practical limit
553        on many systems
554    o Compute the non-local term using either KPP vertical diffusivity (=default)
555       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
556    
557    checkpoint55h_post
558    o add verification test "vermix"
559    o remove all the *_ioinc flags and replace with the single global
560      outputTypesInclusive flag
561    o allow to set a vertical profile of vertical diffusivity for T & S
562    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
563    o useMNC moved from data.mnc to data.pkg
564    
565    checkpoint55g_post
566    o Renaming carbon AD experiments to comply with testreport conventions
567    o Updating adjoint of Held-Suarez hs94.1x64x5
568    o Fixing directives for non-ECCO forward_step, after ECCO directives
569      have been fixed to avoid recomp. of do_oceanic_phys
570      Works well for global_ocean.90x40x15,
571      but recomp. issue remains for carbon
572    o Updating adjoint output for natl_box_adjoint after
573      pkg/ecco has been modified (see taga c55d_post)
574    
575    checkpoint55f_post
576    o rename to timeave_init_fixed
577    
578    checkpoint55e_post
579    o some delicate re-shuffle of store directives to avoid one
580      extra call of do_oceanic_physics
581      affects ecco_the_main_loop.F, do_oceanic_physics.F
582      checkpoint_lev1_directives.h
583    o NB: this may break global_ocean adjoint temporarily,
584      but it is clear how to fix it. Will do later, need this now.
585    
586    checkpoint55d_post
587    o ECCO specific cost function terms (up-to-date with 1x1 runs)
588    o ecco_cost_weights is modified to 1x1 runs
589    o modifs to allow observations to be read in as
590      single file or yearly files
591    o enable to read exf forcing fields as either
592      single file or yearly files (flag useExfYearlyFields)
593    checkpoint55d_pre
594    
595    o switch between 2-level and 3-level checkpointing
596    o add ability of MNC to write local and "partial" (eg. 2D slices where
597      the full 3D field is never actually stored) arrays to NetCDF files
598      with the correct (that is, the complete multi-dimensional) set of
599      array indicies
600      - used in mom_vecinv() to write the diagFreq output
601      - tested (demonstrated) in verification/aim.5l_cs
602    o further mnc-ification
603      - add verification/lab_sea to the list with mnc setups
604      - fix undefined mnc v-names in cd_code
605      - add kpp to mnc output (both snapshot and timeave)
606    o non-hydrostatic code
607      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
608        in calc_gw.F
609      - defaults to viscAh
610      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
611        friction or Leith) in non-hydrostatic mode, as long as there is
612        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
613    o pkg/cost
614      extend simple cost functions to treat time mean quantities
615      (T,U,V) via cost_accumulate_state from cost_tile
616    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
617        be 2 times larger than the minimum size the advection scheme requires.
618        now get a perfect conservation of salt in advect_cs test-exp (updated)
619    o GGL90 (Gaspar's TKE mixed layer)
620      - add horizontal diffusion of TKE, requires exchanges in
621        do_fields_blocking_exchanges, horizontal diffusivity is zero by
622        default. In OPA there is no horizontal diffusion of TKE but the
623        mixing coefficients are computed from a horizontal average of TKE of
624        6 points or so. I think that diffusion has a little more physical
625        justification.
626      - clean up ggl90_calc in the hope of reducing memory usage (this hope
627        was in vain)
628      - mask tke-variable in ggl90_init
629    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
630    o fix biharmonic diffusion on CS-grid.
631    o more obcs stuff
632      - added obcs_external_fields_load as an alternative to the EXF-pkg option
633        for reading boundary values. This routine is called from
634        obcs_prescribe_read
635      - updated obcs_check
636      - changed sponge layer relaxation parameter units for days to seconds
637      - turned off sponge layer by default
638      - changed argument list of OBCS_CALC to myTime+deltaTclock
639      - fixed about 35 bugs in obcs_external_fields_load
640    
641    checkpoint55c_post
642    o obcs stuff
643      - new runtime flags useOBCSprescribe, useOBCSbalance
644      - re-arranged obcs_calc
645      - moved exf_getobcs to obcs_prescibe_read
646        obcs_prescibe_read is called after ORLANSKI stuff
647        and independent of it (executable can contain all).
648      - updated obcs_check
649      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
650        These may be necessary only if tangential velocities are
651        prescribed at OB, not sure, needs testing.
652    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
653      which simplifies the calls and passes the ifc check-bounds test
654    
655    checkpoint55b_post
656    o add a 2D scalar, Z location, exchange_2 routine.
657    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
658      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
659      affects advect_cs results (for the wrong reason): update output.txt
660    o use a more standard discretization for biharmonic viscosity ;
661     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
662      affects results of dome set-up: update output.txt
663    o fix gad_advection.F (CubedSphere part), back to version 1.23
664    o fix bug in mom_vi_del2uv.F (CubedSphere part).
665    
666    checkpoint55a_post
667    o merged code to
668      * prescribe/read time-dependent open boundaries
669        (works in conjunction with exf, cal)
670      * sponge layer code for open boundaries
671      * each boundary N/S/E/W now has its own CPP option
672        (healthy for the adjoint)
673    
674    checkpoint55
675    o up-to-date adjoint of previous breaks
676      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
677      - global_ocean_ebm: adjoint still needs fix (TLM ok)
678      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
679      - carbon: * remove tr1-related adjoint verification
680                * add ptracer as control variable
681    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
682      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
683    
684    checkpoint54f_post
685    o in verification/carbin/ remove experiment related to
686      ALLOW_PASSIVE_TRACER (array tr1 etc)
687      code_ad/ input_ad/ results_ad
688    
689    o add two new packages
690      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
691        + subject to optimization (memory)
692      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
693        + subject to reordering (many GOTOs in the original code)
694        + so far opps is called for every (i,j) point, and then operates in
695          the vertical; one may want to reorder the scheme in order operate in
696          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
697          fields)
698    o overhaul of IO so that we now have flags for MDSIO and/or MNC
699      - all verification tests compile and run with linux_ia32_g77
700      - defaults are compatible with current input files--nothing
701        should change if you were not previously using MNC
702      - MNC output has been added in numerous places (eg. timeave)
703        but there are still a few writes not yet do-able with MNC
704        (this is in progress)
705      - flags now allow for either/or/both use of MDSIO and MNC and
706        documentation will soon follow
707      - numerous small formatting cleanups for ProTeX
708    o add version info (via BUILD_INFO.h) to MNC and stdout
709    
710    checkpoint54e_post
711    o add two new packages
712      - pp81 (Packanowski and Philander, 1981), Richardson number and
713        stratification dependent mixing
714      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
715      - these scheme operate in a similar manner as KPP (without ghat, of
716        course), however there is only one diffusivity that is used for both
717        temperature and salinity (and passive tracers)ç
718    o add offline package
719    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
720      provided by Stephanie Dutkiewicz
721    o genmake2: add ability to search for C compilers and cleanup test output
722      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
723    
724    checkpoint54d_post
725    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
726    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
727      leading to additional shift by 5 days each year of integration
728       (i.e. leading to considerable offset over the years)
729    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
730    o start with no AB and no initial filtering (staggerTimeStep):
731      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
732    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
733      (external loading & cpl import/export stay in forward_step.F)
734    o update coupling interface to work with new staggerTimeStep
735    o change MDSIO ptracers_pickup.
736    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
737    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
738    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
739    
740    checkpoint54c_post
741    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
742      this affects (truncation error) output.txt of test-exp:
743       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
744    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
745    o change Qnet to always be the net heat flux, (+upward).
746      affects (truncation error) output of natl_box exp.: updated
747    o define the max number of passive tracers in PTRACERS_SIZE.h
748    o start to test mnc routinely in exp0
749    o add sea-ice loading (sIceLoad) as a new forcing field.
750    
751    checkpoint54b_post
752    o add testreport "-j JOBS" option for parallel builds (tested and pretty
753       impressive on Altix and Opteron systems)
754    o diagnostics can now write NetCDF files through the mnc package
755    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
756    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
757    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
758      affects (truncation error) output of lab_sea & natl_box exp.: updated
759    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
760    
761    checkpoint54a_post
762    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
763    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
764    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
765    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
766      + internal_wave (shift in writing cg2d_ini_res)
767    checkpoint54a_pre
768    
769    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
770      - modified verification/lab_sea and natl_box_adjoint accordingly
771    
772    checkpoint54
773    checkpoint53g_post
774    o prepare splitting of thermodynamics: store convect.counter in common block
775    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
776      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
777    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
778    o new parameter "nShapS": allow to treat differently S from T (nShapT)
779    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
780    o restore adjointability
781    
782    checkpoint53f_post
783    o modifications that affect AIM experiment results (update output.txt):
784      - no advection of S at top interface Nr (pkg/generic_advdiff)
785      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
786    o AIM pkg:
787      - include stability function into surf.Flux derivative relative to Tsurf
788      - calculate clear-sky radiation & surface temp. change (for diagnostics)
789    
790    checkpoint53e_post
791    o merged cylindrical coord configuration
792    o added rotating_tank experiment
793    checkpoint53e_pre
794    
795    checkpoint53d_post
796    o faulks upgraded: re-generate output.txt that have changed:
797       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
798    o Added Bryan and Lewis, 1979, vertical diffusivity profile
799    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
800    o added Sadourny discretization of Coriolis
801      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
802      - re-enabled use of omega3 (useAbsVorticity)
803    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
804      vector-invariant equations
805      - note: does *NOT* yet use same variable visc. for no-slip BC's.
806    o recoded the lateral boundary conditions for non-hydrostatic w, this time
807      hopefully without new bugs
808      - still to do: biharmonic friction for non-hydrostatic w
809    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
810    o regenerated output for global_ocean_ebm (using -ieee)
811    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
812      of mom_common/
813      - simple re-arrangement of instructions within computing loop
814    checkpoint53d_pre
815    
816    checkpoint53c_post
817    o new version of coupler for AIM+thSIce and Ocean models
818     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
819     - land: change Evaporation of snow
820     - aim with thSIce: fix bug in snow-precip.
821    o changes to calc_gw.F
822     - bug fix for w^2 term near the bottom boundary
823     - (hopefully) improve the lateral slip boundary condtions for use with
824        partial/looped cells
825      - because the bug fix changes two verification experiments anyway (exp5
826        and plume on slope), change the lateral boundary condition from half slip
827        to the value of no_slip_sides
828    o ebm package wasnt quite up to the parallel task. Fixed that.
829    o Adjoint of EBM package + verification
830      * TLM OK
831      * ADM not sufficient accuracy yet (needs further testing)
832    
833    checkpoint53b_post
834    o Commiting new energy balance model to repository
835      * package is pkg/ebm
836      * verif. is verification/global_ocean_ebm
837      * references are in ebm_driver.F
838    C      * X. Wang, P. Stone and J. Marotzke, 1999:
839    C        Global thermohaline circulation. Part I:
840    C        Sensitivity to atmospheric moisture transport.
841    C        J. Climate 12(1), 71-82
842    C      * X. Wang, P. Stone and J. Marotzke, 1999:
843    C        Global thermohaline circulation. Part II:
844    C        Sensitivity with interactive transport.
845    C        J. Climate 12(1), 83-91
846    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
847    C        Destabilization of the thermohaline circulation
848    C        by atmospheric eddy transports.
849    C        J. Climate 7(12), 1870-1882
850    o Will need long integration testing.
851    checkpoint53b_pre
852    
853    o created pkg/mom_common in preparation for variable viscosity code
854    o renamed and split ini_mnc_io
855    o pkg/land: only liquid water can diffuse or run-off
856    o AIM using land: soil wetness availability account for snow
857    o added printMapIncludesZeros to EEPARMS namelist
858    
859    checkpoint53a_post
860    o restore TAMC compatiility for exf_constants.h
861      (no usage of _d in .h)
862    o Additional storing in KPP in an attempt to fix
863      TAMC problem with adjoint of KPP code.
864      (no success...)
865      Identical code works fine with TAF.
866    o Fixed verification/natl_box_adjoint experiments.
867      Initial conditions for Experiments 4 and 5 are now
868      set to "SEAICE_initialHEFF=0", which is more reasonable,
869      and hence gives results closer to that of Experiment 2.
870      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
871    
872    checkpoint53
873    o stable checkpoint with up to date adjoint
874      TLM tests only run for 1st grdchk at the moment. Its unclear if
875      this is a code problem or a problem with resetting code for g_
876      variables that is being autogenerated wrong.
877      Otherwise:
878       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
879       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
880         are both still in chaos following their security messes.
881    
882    checkpoint52n_post
883    o various build (mostly genmake2) changes including:
884      - ability to build/run more easily within Cygwin and MacOS X
885      - more complicated Makefiles with a stronger dependence on Gnu Make
886    o pkg/seaice modifications
887      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
888        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
889        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
890      - changed proxy for geostrophic velocity and updated
891        verification/lab_sea/results/* accordingly
892      - removed ADI dynamic solver from pkg/seaice
893      - replaced all occurrences of 1/CSTICE or 1/CSUICE
894        they caused a segmentation fault under certain circumstances
895      - removed unused field WATR
896    o bug fix in exf-package:
897      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
898         now reflect that.
899    o small fixes in the cal-package:
900      - set reference date to first of January for the 'model'-calendar
901      - failing of cal_CheckDate in cal_FullDate now actually results in a
902        warning
903    o small modifications in exf-package to increase flexibility:
904      - change climtempfreeze from a constant to a runtime parameter that
905        is specified in data.exf_clim (default = -1.9)
906      - introduce runtime parameter windstressmax (default = 2.0) that is
907        specified in data.exf
908    o fix in pkg/thsice:
909      - update Evap (Tsf changes) to be consistent with Latent heat flux
910      - maintain snow precipitation unchanged (even if Tsf >=0).
911     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
912    
913    checkpoint52m_post
914    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
915      this does not change any of the results, because myIter=0 in swfrac always
916      lead to jwtype=2 (the default anyway), but the call makes little sense
917      as a default
918    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
919    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
920      atmospheric model (AIM) to use it ; add a "slab ocean" component.
921    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
922    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
923    o extending useSingleCpuIO option to work with new exch2 I/O format
924      - old-style, missing-tile I/O is still accessible by defining CPP
925        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
926    o monitor package can write to NetCDF files and/or STDOUT
927    o fix re-definition bug in MNC_GRID_INIT_ALL()
928    o doc/api_reference added
929      - a framework for building an API Reference Manual using all
930        the "protex" comments embedded in the code
931      - see pkg/generic_advdiff, pkg/mnc for examples
932    o MNC:
933      - make myThid the last argument for all subroutines
934      - new default for the grid files: NO halos
935      - add useMNC and other run-time flags
936      - separate per-file-group handling of the unlimited dimension
937      - early initialization of MNC w/ flags read at the eeboot stage
938        and lookup tables set in initialize_fixed
939      - write all MNC output to a freshly-created directory
940    o thermodynamics sea-ice (thsice) is now tested with testreport.
941    o test exp. advect_cs: use the standard cs32 grid ; update output.
942    o Added functionality to grdchk:
943      pick global i,j,k position (or nearest wet) where to perform check.
944    
945    checkpoint52l_post
946    o new land formulation:
947      a) use ground enthalpy as prognostic variable to ensure exact
948         energy conservation.
949      b) account for water temperature and for latent heat of freezing
950         in all processes (rain, run-off, ground storage)
951      c) compute surface and ground temperature implicitly.
952    o aim_v23 modification for new land model:
953      a) Treat separately land / ocean / sea-ice surface fluxes
954         to allow implicit computation of land & sea-ice surface temp.
955      b) add snow precipitation.
956    checkpoint52l_pre
957    
958    o fix problem (when 1 tile is empty) in min/max monitor.
959    o fix bug in timeAve (u,vZetatave in common block)
960    o no restoring terms under ice for pkg/seaice
961    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
962    o bug fix for pkg/seaice pickups
963    o change MNC call locations and add coordinate attributes
964    o mask vorticity at the corner ; affects global_ocean.cs output
965    o fix ini_curvilinear_grid ; test CS experiments with mpi
966    o aim.5l_cs: modify sea-ice fraction input file ; update output
967    o exf: Adding simple range check routine for exf fields after read
968    
969    checkpoint52k_post
970    o removed top-level directory "diags"
971      - we migrated these functions to pkg/timeave a long time ago
972    o fixed bug introduced in pkg/monitor
973    o accuracy ctrlprec = 32 insuffient for gradient checks using
974      averaged fields (I/O via cost_averages)
975      -> use ctrl.h in active_file*.F to control I/O precision.
976    o paramter list of CALL ADTHE_MAIN_LOOP
977    o added initial do_the_model_io to ecco
978    o set all ...Freq to zero after cost_final
979      taveFreq, dumpFreq, pChkptFreq
980    o MAIN and ECCO differentiability restored
981    
982    checkpoint52j_post
983    o fix nchklev in tamc.h for global_ocean...
984    o Bringing flow and store directives up-to-date
985    o Really weird thing!
986      call do_the_model_io from the_main_loop with parameters
987      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
988      TAF places a faulty re-call of initialise_varia
989      after cost_final call which should not be there!
990    checkpoint52j_pre
991    
992    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
993      error messages
994    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
995    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
996      debug output
997    o modfied mdsio_writefield.F to handle non-global files under exch2
998    o update AIM Cubed-Sphere exp (aim.5l_cs):
999      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1000    o update AIM Equatorial Channel exp:
1001      use standard aim_v23 pkg and change the SST fields to be more realistic.
1002    o globalFile now works with exch2
1003    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1004      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1005    o limit timeave output for hi-res integrations
1006    
1007    checkpoint52i_post
1008    o removed CPP_EEOPTIONS.h from verification/*/code
1009    o updated the tiling for global_ocean_pressure
1010    checkpoint52i_pre
1011    
1012    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1013      the old pkg/aim).
1014    
1015    checkpoint52h_pre
1016    o shortened offending lines in exch2_send_rx?.template
1017    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1018    o genmake2: add build & execute test for NetCDF code
1019    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1020      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1021    o added useSingleCPUIO flag to monitor.F and mon_out.F
1022    o added temporary hack for sea-ice dynamics on the cube:
1023      metric terms are ignored and it is assumed that
1024      there is no sea-ice on cube faces 1, 2, 4, and 5.
1025    
1026    checkpoint52f_post
1027    o added exch2 cube routines to pkg/exch2
1028    o modified hs94.cs-32x32x5 to use it
1029    o added new grid files to hs94.cs-32x32x5
1030    checkpoint52f_pre
1031    
1032    checkpoint52e_post
1033    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1034      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1035    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1036      to work with implicit vertical advection and AB ;
1037    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1038    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1039     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1040    checkpoint52e_pre
1041    
1042    o fix bug in impldiff when Nr=1 or Nr=2.
1043    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1044    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1045    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1046      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1047    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1048    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1049    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1050    
1051    checkpoint52d_post
1052    o re-tiled many expts to allow comparison in multi-processor mode
1053      - updated output accordingly
1054      - changed hs94.128x64x5 to use intial T from file rather than use the
1055        random number generator
1056    o add infrastructure in model routines for fizhi and gridalt packages
1057    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1058    o changes to permit hi-res, cubed-sphere, configuration
1059      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1060      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1061      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1062        of surface winds for the cube
1063      (A verification experiment, based on global_ocean.cs32x15, but with
1064       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1065       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1066       complete with example surface forcing files and matlab scripts to look
1067       at the output and compare it with that of global_ocean.cs32x15.)
1068    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1069       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1070       to conform to the common rule.
1071    o check-in the first version of the coupler + interfaces for multi-components
1072       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1073       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1074       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1075       - ocean and atmos. share the same horizontal grid (no interpolation).
1076       - exchanges between component and coupler is done in forward_step
1077    o new verification experiment, cpl_aim+ocn:
1078       coupled ocean - AIM atmosphere on cs32 grid.
1079    
1080    checkpoint52d_pre
1081    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1082    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1083    
1084    checkpoint52c_post
1085    o Fixing OPTIONS files for use of exf:
1086      - ALLOW_ECCO not needed
1087      - ECCO_CPPOPTIONS.h should not be included from
1088        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1089        as has been the case in the past
1090      - All cal/exf related options are currently set in
1091        single header file. Should remain so until we
1092        agree on a consistent new policy.
1093    o Removed all CPP options for cal package.
1094      cal has no more CPP options.
1095    o modified STOREs in GAD_ADVECTION
1096    o corrected key comp. for passkey
1097    
1098    checkpoint52b_post
1099    o new version: "thsice" of thermodynamic sea-ice pkg:
1100     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1101     - modify fluxes but do not change theta directly;
1102     - light cleaning of bulk_force pkg (still needed with thsice).
1103     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1104       + output_thsice.txt to test thsice & bulk_force pkgs.
1105    o put back grid & coriolis monitor output.
1106    checkpoint52b_pre
1107    
1108    o call "do_the_model_io" at the beginning (=> dump initial state)
1109    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1110    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1111      (need info on NUMBER_OF_PTRACERS)
1112    o missing PTRACERS headers in some routines
1113    o default tamc.h in pkg/autodiff supposed to crash
1114      to ensure proper customization
1115    
1116    checkpoint52a_post
1117    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1118      - moved surfaceTendencyTice from pkg/seaice to main code
1119      - subroutine FREEZE_SURFACE now limits only surface temperature
1120        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1121        => new output.txt for global_ocean.cs32x15 & global_with_exf
1122      - keep the old version of FREEZE for backward compatibility;
1123        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1124      - corresponding modifs for TAF directives
1125    o added surface flux output variables to TIMEAVE_STATVARS
1126    o time-averaged output for pkg/ptracers
1127    o fix problem with ECCO-related divided adjoint
1128      snapshot file was missing some ad-variables,
1129      but no warning issued by TAF
1130    
1131    checkpoint52a_pre
1132    o some bug fixes for #undef REAL4_IS_SLOW
1133    
1134    checkpoint52 = ecco_c52_e35
1135    o after testing adjoints of checkpoint51u_post
1136    
1137    checkpoint51u_post
1138    o this is the post-merge tag of the ecco-branch
1139      (needs another clean checkout and re-testing)
1140    o various natl_box_adjoint configs and results
1141      but no input fields
1142    o obcs adjoint not yet merged!
1143    o adding ECCO global 1x1 and 2x2 degree configs
1144    o updated/extended some store directives for seaice
1145    o pkg/ecco now containes ecco-specific part of cost function
1146    o top level routines the_main_loop, forward_step
1147      supersede those in model/src/
1148      previous input data.cost now in data.ecco
1149      (new namelist ecco_cost_nml)
1150    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1151    
1152    checkpoint51t_post
1153    o this is the pre-merge tag of the ecco-branch
1154    
1155    checkpoint51s_post
1156    o cleanup: removed various obsolete #define-s
1157    o pkg/grdchk
1158      - renamed 'ph-grd 3' to 'grad-res'
1159      - merged from ecco-branch
1160        (remaining bug fixes for obcs gradient checks)
1161      - additional high-precision output for testreport
1162        (grep for 'precision_grdchk_result')
1163    
1164    checkpoint51r_post
1165    o cleaned up or removed CPP_OPTIONS.h files
1166    o updated results for some of the tests to reflect the new
1167      optfiles (-ieee: -O0 instead of -O3)
1168    
1169    checkpoint51q_post
1170    o cd_code:
1171      - moved cd_scheme.F -> cd_code_scheme.F
1172      - separate read_checkpoint from cd_code_ini_vars.F
1173      - separated cd_code part from write_checkpoint
1174      - updated AD_SOURCE, generated .flow
1175      - added CD_CODE_VARS.h to the_main_loop
1176      - Moving cd_code specific store dir.s to pkg/cd_code
1177    o ctrl package totally restructured
1178      - pack/unpack now optional and decoupled from
1179        xx_/adxx_ I/O
1180      - ctrl_pack/unpack cleaned
1181        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1182      - confined inclusion of AD_CONFIG.h to where necessary.
1183    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1184    
1185    checkpoint51p_post
1186    o create initial cd_code package
1187      - WARNING: the initialization of fields within packages
1188        is broken because INI_FIELDS (where READ_CHECKPOINT is
1189        called) is called *before* PACKAGES_INIT_VARIABLES.
1190        This seems to be backwards since
1191        1) its important to initially zero the entire field including
1192           the "halo" region
1193        2) zeroing needs to be done *before* reading pickup info
1194           and the pickup call might or might not happen in any
1195           particular run
1196      - this needs an overhaul for R2
1197    o cleanup verification/*/code/GMREDI_OPTIONS.h
1198    o cleanup testreport
1199    
1200    checkpoint51o_post
1201    o bringing AD-related verif's up to date with genmake2
1202      - carbon/
1203      - global_ocean.90x40x15/
1204      - hs.94.1x64x5/
1205      - (front_relax/ )
1206    o (more) consistent directory structure for AD-related verif.'s
1207    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1208    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1209    o bug fix in find_alpha.F for MDJWF:
1210      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1211        change rho -> rho-rhoConst
1212      - replace call find_rho to find_rhonum
1213    o initialisation of rFlx extended to full array (required by TAF)
1214      and shifted to thermodynamics
1215    o removed PTRACERS.h in ptracers routine
1216    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1217    o Correcting initialisations for fVerU, fVerV.
1218    o helping TAF to recognize dependency on kUp for
1219      fVerU, fVerV
1220    o Replacing delZ by delR in pkg/ctrl/
1221    checkpoint51o_pre
1222    
1223    o undid all of cp51 pending some cleanups and discussion
1224    o added the [#include "AD_CONFIG.h"] statement to all files that need
1225       it for adjoint/tl #defines
1226     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1227     o removed tools/genmake since it no longer works
1228    
1229    checkpoint51n_post
1230    o modifications to make FREEZE flux visible to pkg/kpp
1231      - moved surfaceTendencyTice from pkg/seaice to main code
1232      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1233      - subroutine FREEZE now limits only surface temperature
1234        (this means new output.txt for global_ocean.90x40x15,
1235         global_ocean.cs32x15, and global_with_exf)
1236    o added surface flux output variables to TIMEAVE_STATVARS
1237    
1238    checkpoint51n_pre
1239    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1240    o added [#include "AD_CONFIG.h"] to all files that use the following
1241      defines:
1242      - ALLOW_ADJOINT_RUN
1243      - ALLOW_TANGENTLINEAR_RUN
1244      - ALLOW_ECCO_OPTIMIZATION
1245    
1246    checkpoint51m_post
1247    o incorporating changes to get TAMC/TAF working in genmake2
1248      - added new TAMC/TAF targets to the Makefile
1249      - various cleanups related to package handling
1250      - these changes should have no impact on the forward model
1251    
1252    checkpoint51l_post
1253    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1254     - faster algorithm for cal_addtime.F
1255     - higher precision arithmetic, where needed
1256     - pkg/exf *startdate variables changed from calendar date to
1257       model integration time
1258    
1259    checkpoint51l_pre
1260    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1261    o enable to apply restoring on S & T only in a latitude band.
1262    o update output (external_forcing_surf modif. change truncation errors)
1263       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1264    
1265    checkpoint51k_post
1266    o change default to: useNHMTerms=.FALSE.
1267     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1268       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1269     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1270        exp1, ideal_2D_oce
1271     - change data file of oceanic exp (leave the results unchanged for now)
1272       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1273    o set gravitySign automatically according to the vertical coordinate used
1274      (and change sign: back to "logical" value: +1 when R increases downward)
1275    o added an include barrier to the default CPP_OPTIONS.h and
1276      removed the #include "PACKAGES_CONFIG.h" from it
1277    o fix a bug in mom_fluxform (from chk51j_post)
1278    
1279    checkpoint51j_post
1280    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1281    o adjusted some flow directives (dynamics, thermodynamics)
1282    o added cubed-sphere case to test cost function
1283    o heckpoint_lev?_directives.h now include
1284      pkg-specific directives, whenever those are enabled.
1285    o Moving pkg-specific flow directives to corresponding pkg
1286      Moving pkg-specific differentiation list to corresponding pkg
1287      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1288      ---> conventions are
1289           - pkg_ad.flow
1290           - pkg_ad_diff.list
1291           - pkg_ad_check_lev?_dir.h
1292    
1293    checkpoint51i_post
1294    o merge of the branch-genmake2
1295      - knowingly breaks the older genmake
1296      - automatic generation of all ALLOW_${PKG_NAME} defines
1297      - new testreport supersedes older testscript
1298    o large number of package inclusion and header cleanups
1299    checkpoint51i_pre
1300    
1301    o new output for adjoin of global ocean vector invariant
1302    o fix for checkpoint of thermodynamic seaice and bulk_force
1303    o Steph gchem various cleanups
1304    
1305    checkpoint 51h_pre
1306    o fixed some single quotes
1307    o modify gchem pkg to be more versatile
1308    o modifications to clean up dic pkg
1309    o add pkg/cfc
1310    
1311    checkpoint51g_post
1312    o provide links for ARPACK and ADM*TLM
1313    o start removing verification/vero/
1314    o update AD-related stuff
1315      (in particular some IF-statements in model/src/ routines)
1316    o adding to verification/global_ocean.90x40x15/ adjoint of
1317      vector invariant setup
1318    
1319    checkpoint51f_post
1320    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1321    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1322      of tracer Green's fucntions for ocean inversion project.
1323    
1324    checkpoint51f_pre
1325    o Added on-the-fly spatial interpolation capability
1326        "USE_EXF_INTERPOLATION" to pkg/exf.
1327      - This is a temporary Cartesian-grid hack until
1328        the super-duper ESMF coupler becomes available.
1329      - See verification/global_with_exf/README for usage example.
1330      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1331        flags and modified pkg/seaice accordingly.
1332    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1333        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1334        non-local transport term.
1335    
1336    checkpoint51e_post
1337    o pkg/mom_vecinv:
1338      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1339      - add time-ave diagnostic of vorticity advection.
1340    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1341    o atmospheric geopotential: - include water vapor effect;
1342                                - use p^kappa in p* scaling.
1343    o land pkg: read initial state from files.
1344    o AIM : add stratospheric drag in the upper level
1345    
1346    checkpoint51d_post
1347    o change function ILNBLNK (=> last non-blank char.) to return zero
1348      (instead of the string length) when the string. char is empty
1349    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1350    o modif's to restore TAMC compatibility
1351      - avoid "_d" constructs in PARAMETER declarations
1352      - avoid interrupting lines by comment lines
1353    o Use cluster local disks for purely local I/O
1354      vs. globally visible disks needed for ctrl stuff
1355      (merged from ecco-branch)
1356      - new active_file_loc... and mdsio_..._loc routines
1357      - affected packages: autodiff, ctrl, grdchk, mdsio
1358    
1359    checkpoint51c_post
1360    o introducing integer flag debugLevel
1361      - debLevZero: suppress all output
1362      - debLevA: standard
1363      - debLevB: equivalent to current debugMode=.TRUE.
1364    o introducing pathname variable mdsioLocalDir for mdsio
1365      that can be specified at runtime
1366      (relevant for cluster I/O to local disk)
1367    `
1368    >>>checkpoint51b_post
1369    adjoint of ptracers
1370    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1371    o extended state in checkpoint_lev?, etc.
1372    o alternative ctrl/cost with tr1 or ptracer
1373    o new comlev1_bibj_ptracers
1374    o new ptracers.flow
1375    o made ptracers_forcing same as external_forcing_s
1376    o added verification for adjoint with ptracers
1377      - adm. grdchk fail so far
1378      - tlm. grdchk OK
1379      - checked tapelev/comlev recomputations: OK
1380    <<<checkpoint51b_pre
1381    
1382    checkpoint51a_post
1383    o added code for biogeochemistry package
1384      - new pkgs: dic, gchem
1385      - new subroutine in ptracers
1386    o modify code for biogeo packages
1387      - in model/src and pkg/ptracers
1388    
1389    checkpoint51
1390    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1391      - autodiff, ctrl, exf, grdchk, seaice
1392      kept separate packages
1393      - cost, ecco, obcs
1394    o updating verification/internal_wave, verification/lab_sea
1395      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1396    
1397    checkpoint50i_post
1398    o Preparing next differentiable checkpoint and sync
1399      of MAIN vs. ecco-branch
1400      - 1st step: this one is differentiable
1401      - 2nd step: next(! not this) checkpoint will have updated packages
1402                  from ecco-branch)
1403    
1404    checkpoint50h_post
1405    o new package "land": provide surface BC for AIM.
1406    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1407    o AIM: use true log-P extrapolation for near surface temp (= as in
1408        F.Molteni paper) ; update aim.5l_cs output.
1409    o New variable in PARM03 for more flexible pickups
1410    o somewhat cleaned package initialisation sequence for
1411      ctrl/ cost/ ecco/ in packages_... routines
1412    
1413    checkpoint50g_post
1414    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1415      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1416      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1417        made the default because of faster convergence than ADI
1418    
1419    checkpoint50f_post
1420    o exf totally restructured
1421      - replaced all exf_set_ routines by one generic exf_set_gen.F
1422        and made sure it's still differentiable
1423      - split exf_getffields.F into new exf_bulkformulae.F
1424      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1425      - updated adjoint/makefile and relevant verif. accordingly
1426    
1427    checkpoint50f_pre
1428     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1429          + change Evap over land. (update aim.5l_cs output)
1430     o added missing .cvsignores and made uniform across expts
1431     o changed configuration of tidal_basin_2d expt
1432     o added pkg/debug functions for tracing code in fatal crashes
1433     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1434     o new fn in pkg/monitor to stop model if solution grows too big
1435     o removed lots of single quotes from comments
1436    
1437    checkpoint50e_post
1438    o make KPP work with PTRACERS
1439     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1440       nearly a copy of kpp_transport_s
1441     - there is no analogue to SurfaceTendencyS, so I have to use
1442       gPtr(of the surface layer) instead
1443    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1444    checkpoint50e_pre
1445    
1446    checkpoint50d_post
1447    o change kpp output from multiple-record state files to single-record state
1448      files analogous to write_state.F
1449    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1450      analogous to the cg2d-related output.
1451    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1452      so that writing to internal file fn (with length 512) fails.
1453    checkpoint50d_pre
1454    
1455    checkpoint50c_post
1456    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1457    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1458    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1459    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1460    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1461    
1462    checkpoint50c_pre
1463    Merging from release1_p13:
1464    o bug fix for pkg/seaice dynamic solver
1465    o Added SEAICE_initialHEFF to pkg/seaice
1466    
1467    checkpoint50b_post
1468    o store u*,v* in gU,V instead of in guNm1,gvNm1
1469    o in order to put the momForcing out of the Adams-Bashforth:
1470      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1471      to timestep.F
1472    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1473    o re-generate output for highly sensitive test-exp:
1474       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1475    
1476    checkpoint50b_pre
1477    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1478    o corrected CPP option mismatch in exf_Bulk... functions for case
1479      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1480    
1481    checkpoint50a_post
1482    o Bug fix for merging between c50 and KPP.
1483      ikey was passed from thermodynamics to kpp_calc via
1484      common block rather than being recomputed in kpp_calc,
1485      in contradiction with new key itdkey.
1486      New key ikppkey created, and tamc.h headers updated.
1487    
1488    checkpoint50
1489    - 2nd step of merge with ecco-branch:
1490      merge changes in ecco-branch back into main trunk
1491    - bug fix in find_alpha
1492    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1493    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1494    - merged some sliced AD support routines
1495    
1496    checkpoint49
1497    merged from ecco-branch:
1498    o exf:
1499      - Enable initialisation of forcing fields to constant
1500        (runtime) values.
1501      - in exf_getffields.F
1502        Reduce i-/j-loop to interior domain, discarding overlaps.
1503        That also fixes wrong TAF-key computations for key_1, key_2
1504        with bulf formulae.
1505      - exf_init.F modify #ifdef for exf_init_evap
1506      - exf_getffieldrec.F, ctrl_getrec.F
1507        The following INT-usages are not safe:
1508          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1509          fldcount = int(fldsecs/fldperiod) + 1
1510        and were modified.
1511    o autodiff: checkpoint_lev...
1512      - updated storing for bulk formulae (some arrays were missing)
1513      - added state for seaice package
1514      - synchronized with main branch
1515    o DIVA:
1516      Modif.s in
1517      - the_main_loop.F
1518      - the_model_main.F
1519      and added cost_final_restore.F cost_final_store.F
1520      o With these changes, it is possible to fully separate
1521        the first forward run to compute the cost function (mdthe_main_loop)
1522        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1523        into separate model executions.
1524        This enables better tuning of DIVA to given queue sizes.
1525      o Loss of cost function value in consecutive DIVA runs is
1526        fixed by storing to 'costfinal' file.
1527      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1528        beginning/end of adjoint integration is accounted for.
1529      The current changes apply to TAF-1.4.26.
1530      TAF has one remaining bug, requiring one manual change
1531      (see MITgcm manual).
1532    o cal: synchronized between MAIN and ecco-branch
1533    
1534    checkpoint48i_post
1535    o Changes to restore differentiability of code w.r.t. previous tag
1536      (mostly adding new routines to make list and replacing
1537      pressure by totPhiHyd).
1538    o Updated and merged grdchk package
1539      - has both ADM and TLM checks
1540      - works for single- and multi-proc.
1541      - output cleaned
1542      - worked successfully for parallel DIVA
1543    o genmake:
1544      - Adding -platform=SP4
1545      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1546    o Modif. for DIVA:
1547      ctrl_unpack should not be called in intermediate DIVA interval.
1548      (similar thing would apply for active files such as
1549      tbar, sbar, psbar, which should not be reinitialised;
1550      only relevant for ecco-branch)
1551    
1552    checkpoint48h_post
1553    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1554    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1555    o Added SEAICE_initialHEFF to pkg/seaice
1556    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1557    
1558    checkpoint48g_post
1559    --- EOS:
1560    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1561      store total Potential in totPhyHyd for diagnostics & EOS.
1562    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1563    --- Pressure/geopotential gradient:
1564    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1565    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1566      ( changes results of global_ocean_pressure )
1567    o NLFS + z-coord.: add eta*Rho' contribution.
1568    o accurate phiHyd when using interface-W at the middle between 2 centers
1569     ( changes results of ideal_2D_oce )
1570    o includes r* 2nd term in potential gradient.
1571    
1572    checkpoint48f_post
1573    Merging from release1_p12:
1574    o Modifications for using pkg/exf with pkg/seaice
1575      - improved description of the various forcing configurations
1576      - added basic radiation bulk formulae to pkg/exf
1577      - units/sign fix for evap computation in exf_getffields.F
1578      - updated verification/global_with_exf/results/output.txt
1579    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1580      (SBO) core products, including oceanic mass, center-of-mass,
1581      angular, and bottom pressure (see pkg/sbo/README.sbo).
1582    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1583      to avoid negative values in shallow regions.
1584      - updated verification/natl_box/results/output.txt
1585      - updated verification/lab_sea/results/output.txt
1586    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1587    o Added useSingleCpuIO option (see PARAMS.h).
1588    o Updated useSingleCpuIO option in mdsio_writefield.F to
1589      work with multi-field files, e.g., for single-file pickup.
1590    o pkg/seaice:
1591      - bug fix in growth.F: QNET for no shortwave case
1592      - added HeffFile for specifying initial sea-ice thickness
1593      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1594    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1595      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1596    o pkg/seaice:
1597      - adjoint-friendly modifications
1598      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1599    
1600    checkpoint48e_post
1601    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1602    o dynamics: change definition of computational domain & adapt mom_fluxform
1603      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1604    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1605        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1606        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1607        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1608        inverted_barometer solid-body.cs-32x32x1
1609      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1610    
1611    checkpoint48d_post
1612    o in preparation for r*:
1613     a) use pre-computed gradient of hydrostatic potential:
1614        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1615     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1616        => affects results of glob_oce_pressure (different truncation error)  
1617      update output.txt of ideal_2D_oce & global_ocean_pressure
1618    
1619    checkpoint48d_pre
1620    o in preparation for r*:
1621      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1622      pass the 2 comp. of the grad. as arguments to momentum S/R.
1623      but for the moment, only used if it does not change the results.
1624    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1625    
1626    checkpoint48c_post
1627    Modifications in treatment of initial flux forcing controls
1628    to avoid extra storing of flux fields.
1629    
1630    checkpoint48c_pre
1631    o Added tidal_basin_2d experiment (currently 1D!)
1632    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1633    
1634    checkpoint48b_post
1635    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1636     (modification to pressure gradient not yet implemented)
1637    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1638      (for U & V) that are used for vertical advection of momentum.
1639    
1640    checkpoint48a_post
1641    o In preparation for r*, use temp. array to compute vertical transport
1642       in flux-form momentum pkg. => change results of few test-exp.
1643      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1644                        lab_sea, natl_box & plume_on_slope
1645    
1646    checkpoint48
1647    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1648    
1649    checkpoint47j_post
1650    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1651    o moved adexch from forward_step to addummy_in_stepping
1652    o added exch in ctrl_map_...
1653    o aveFreq.=0. at end of cost_final to avoid overwrite in
1654      reverse checkpointing loop
1655    o Yet more changes in gmredi:
1656      * adgmredi_calc_tensor
1657        avoiding all recomputation of gmredi_slope_limit
1658      * adgmredi_x/y/rtransport
1659        added flag for excessive storing to avoid recomp. of
1660        u/v/rtans, dTdx/y/z
1661        -> this is not really necessary and very memory-consuming
1662      * adgmredi_slope_psi:
1663        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1664      * gmredi_slope_limit
1665        re-activated full calculation of taperfct for case 'ac02'
1666    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1667    
1668    checkpoint47i_post
1669    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1670    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1671      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1672    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1673    o gmredi: fix few bugs.
1674    
1675    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1676    This will be a good checkpoint to plug into the ecco-branch.
1677    o few modif.'s to get latest version adjointed
1678      (mainly kick out code in ini_linear_phisurf)
1679    o modif's to run adjoint with exactConserv
1680    o case GM_BOLUS_ADVEC should be cleaned
1681      S/R gmredi_slope_psi should be cleaned
1682    o verification/carbon now has exactConserv=.TRUE.
1683    
1684    checkpoint47g_post
1685    o time-average AIM output: becomes independent from statvars time-average
1686      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1687    o After TAF bug fix:
1688      Tested adjoint of gmredi package.
1689      Tests were done with checkpoint47 rather than with latest
1690      checkpoint47f_post since the latter is broken for the adjoint
1691      verification/carbon/ contains both ADM and TLM gradient checks.
1692    Here they are, before they get changed/lost/stolen.
1693    Mostly modif.'s to fix numerical sensitivities.
1694    Gradient checks OK for
1695    - GM_taper_scheme:
1696      * clipping
1697      * ac02
1698      * linear
1699      * glw91
1700      * dm95
1701      * ldd97
1702    - GMREDI_OPTIONS:
1703      * GM_VISBECK_VARIABLE_K
1704      * GM_NON_UNITY_DIAGONAL
1705      * GM_EXTRA_DIAGONAL
1706      * GM_BOLUS_ADVEC
1707    in conjunction with data.gmredi parameters to be checked in
1708    in a few minutes under verification/carbon/code/
1709    
1710    checkpoint47f_post
1711    Merging from release1_p10:
1712    o modifications for using pkg/exf with pkg/seaice
1713      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1714        and SEAICE_EXTERNAL_FLUXES
1715      - pkg/exf CPP options EXF_READ_EVAP and
1716        EXF_NO_BULK_COMPUTATIONS
1717      - usage examples are Experiments 8 and 9 in
1718        verification/lab_sea/README
1719      - verification/lab_sea default experiment now uses
1720        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1721    
1722    checkpoint47e_post
1723    o created a tag prior to creating a branch
1724    
1725    checkpoint47d_post
1726    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1727      at the bottom boundary had an erroneous half slip boundary condition
1728    o added bottom drag and no slip boundary condition capabilities to
1729      oceanic pressure coordinates code
1730    o added new verification experiment global_ocean_pressure, this experiment is
1731      also described in the tutorial section of the manual
1732    checkpoint47d_pre
1733    
1734    checkpoint47c_post
1735    o Added a verification experiment for a global cubed-sphere ocean run
1736      -  verification/global_ocean.cubed32x32x30
1737      -  uses pkg/therm_seaice and pkg/bulk_forcing
1738    
1739    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1740    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1741      when using P-coordinate; only implemented for atmospheric config.
1742    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1743      NOTES: requires option NONLIN_FRSURF to be "#define".
1744    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1745    
1746    checkpoint47b_post
1747    Merging from release1_p9:
1748    o pkg/seaice
1749      - removed GOTO's and added taf directives
1750      - double precision constants to reduce the g77 (Linux)
1751        to F77 (SGI) differences reported in release1_p8
1752    o tools/genmake
1753      - added SGI options
1754    o verification/testscript
1755      - updated to that of checkpoint47a_post
1756    o verification/global_ocean.90x40x15/input/eedata
1757      - modified for SGI f77 compatibility
1758    o verification/lab_sea
1759      - added description of sea-ice model
1760      - added missing matlab routines
1761      - added test of thermodynamics parallelization
1762    
1763    checkpoint47a_post
1764    o new pkg: aim_v23
1765     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1766       for now, keep the same surface forcing as before.
1767     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1768     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1769     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1770    o add diagnostic of surface correction term in monitor output
1771    
1772    o bulk_force and therm_seaice
1773    - Two packages:  bulk_force (Bulk forcing)
1774      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1775    - Earlier integration from Stephaine Dutkiewicz
1776      and Patrick Heimbach.
1777    - Two ifdef statements for compile time,
1778       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1779    
1780    checkpoint47
1781    differentiable version of checkpoint46n_post
1782    o bug fix in quasihydrostaticterms
1783    o * "clean" adjoint code (in terms of extensive recomputations)
1784        can now be obtained for all GMREDI options (i.e. for
1785        - GM_VISBECK_VARIABLE_K
1786        - GM_NON_UNITY_DIAGONAL
1787        - GM_EXTRA_DIAGONAL
1788        - GM_BOLUS_ADVEC )
1789      * However, wrong gradient check problem remains unsolved.
1790      * New CPP options have been introduced for different
1791        tapering schemes
1792    o external_fields_load now part of differentiation list
1793    o pressure needs multiple storing;
1794      would be nice to have store_pressure at beginning or
1795      end of forward_step, e.g. by having phiHyd global (5-dim.)
1796      (NB: pressure is needed for certain cases in find_rho,
1797      which is also invoked through convective_adjustment).
1798    o recomputations in find_rho for cases
1799     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1800    o #define ATMOSPHERIC_LOADING should be differentiable
1801    o ini_forcing shifted to begining of initialise_varia
1802    o Incorporating QNVS line search routines into MITgcm
1803      (this is separate code, and therefore not under pkg)
1804      lsopt/, optim/
1805    o Updated verification/carbon/
1806      - #define GM_VISBECK_VARIABLE_K
1807      - GM_taper_scheme    = 'ldd97'    
1808    
1809    checkpoint46n_post
1810    Merging from release1_p8:
1811    o verification/natl_box:
1812      updating new external_fields_load routine
1813    o New package: pkg/seaice
1814      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1815      The sea-ice code is based on Hibler (1979-1980).
1816      Two sea-ice dynamic solvers, ADI and LSR, are included.
1817      In addition to computing prognostic sea-ice variables and diagnosing
1818      the forcing/external data fields that drive the ocean model,
1819      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1820      The implied surface heat flux is then stored in variable
1821      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1822      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1823      non-local transport term.  Because this call precedes model
1824      thermodynamics, temperature under sea-ice may not be "exactly" at
1825      the freezing point by the time theta is dumped or time-averaged.
1826      N.B.: fairly large differences in accuracy occur across
1827            different platforms/compilers; comparison between
1828            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1829            generated output gives:
1830       T           S           U           V
1831      C D M    c        m  s        m  s        m  s        m  s
1832      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1833      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1834      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1835    
1836      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1837    o GAD:
1838      - generated new common blocks to account for call of
1839        same gad routines with differing traceridentities
1840        (needed to modify tracerIdentity indices in GAD.h)
1841      - generated separate common blocks for case useCubedSphereExchange
1842        (Department of Futurology)
1843      - parameter lists to gmredi_?transport: added tracerIdentity
1844      - added new key indices to tamc.h
1845    o external_fields_load:
1846      - added this routine to TAF list
1847      - needed to make some common blocks global and additional storing
1848        along the same lines as exf package (checkpoint_lev?_directives.h)
1849    o exf:
1850      updated external forcing package
1851      - bug fixes carried over from ecco-branch
1852        (missing OBCS_OPTIONS.h in two routines)
1853      - enable easy to use "no forcing".
1854      - added exf I/O for atmospheric loading
1855      - added exf I/O for runoff data
1856      - transfered scaling between exf <-> MITgcm to exf namelist
1857    o Adding new verification experiment global_with_exf.
1858      This verification experiment is almost identical to the
1859      global_ocean.90x40x15 experiment, except that it uses
1860      the exf (and cal) package instead of the
1861      external_fields_load routine (cf README file).
1862    
1863    checkpoint46m_post
1864    o modified testscript to return -- when there are no lines of "%MON" output
1865    o added new flag "quasiHydrostatic" for QH mode
1866      and new routine quasihydrostaticterms()
1867    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1868      New routine: mom_u_coriolis_nh()
1869    o fixed sign of non-hydrostatic metric terms in u and v equations.
1870      Depend on correct sign of gravitySign.
1871    o added work.pc* to .cvsignore in aim directories using ifc
1872    o introduced flag for controllin non-hydrostatic metric terms
1873    o removed gravitySign from PARM04
1874    o switched to g77/ifc from pgf77 in aim experiments
1875    
1876    checkpoint46l_post
1877    o made convective adjustment work with pressure coordinates:
1878     - changed the direction of k-loop in convective_adjustment.F for the
1879       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1880     - adjusted the reference pressure k-index in convective_adjustment.F
1881     - adjusted the convection condition in convect.F (in analogy to
1882       calc_ivdc.F)
1883     - convective_adjustment no longer computes anything on the halos
1884     - removed the warnings about negative salinity from find_rho.F and
1885       find_alpha.F; instead the new routine look_for_neg_salinity, called
1886       at the beginning of find_rho, find_alpha, and find_beta, does a
1887       check of the entire slice, if CPP-option
1888       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1889    checkpoint46l_pre
1890    
1891    checkpoint46k_post
1892    o fixed the verification/global_ocean.90x40x15 experiment:
1893     - new bathymetry (the world according to A., JMC, and M.)
1894     - new initial fields and forcing fields (*.bin files)
1895     - new POLY3.COEFFS (for the next release one should switch to a full
1896       equation of state: JMD95P or MDJWF)
1897     - fixed several errors and redundancies in the data file
1898     - experiment uses looped cells
1899     - added matlab directory with diagnostic scripts for plotting of output
1900    
1901    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1902     - read AIM physics parameters from a file (data.aimphys)
1903     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1904    
1905    checkpoint46j_post
1906    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1907    o move wVel computation at the end of the time step, in S/R integr_continuity
1908    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1909    o update timeave pkg for wVel diagnostic.
1910    checkpoint46j_pre
1911    
1912    checkpoint46i_post
1913    o Clean up AIM package (and keep the results unchanged):
1914      include CPP_OPTION and use IMPLICT NONE in all routines ;
1915      declare all the variables _RL ; use _d 0 for all numerical constants.
1916      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1917    
1918    checkpoint46h_post
1919    o cleaned up the use of rhoNil and rhoConst.
1920      - rhoNil should only appear in the LINEAR equation of state, everywhere
1921        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1922        and the dynamical equations are all divided by rhoConst
1923    o introduced new parameter rhoConstFresh, a reference density of fresh
1924      water, to remove the fresh water flux's dependence on rhoNil. The default
1925      value is 999.8 kg/m^3
1926    o cleanup up external_forcing.F and external_forcing_surf.F
1927      - can now be used by both OCEANIC and OCEANICP
1928    checkpoint46h_pre
1929    
1930     Added code to convert surface volume flux (fresh water) into
1931     a mass flux when using P coordinates in the ocean (OCEANICP).
1932     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1933    
1934    checkpoint46g_post
1935    o Include a new diagnostic variable phiHydLow for the ocean model
1936      - in z-coordinates, it is the bottom pressure anomaly
1937      - in p-coordinates, it is the sea surface elevation
1938      - in both cases, these variable have global drift, reflecting the mass
1939        drift in z-coordinates and the volume drift in p-coordinates
1940      - included time averaging for phiHydLow, be aware of the drift!
1941    o depth-dependent computation of Bo_surf for pressure coordinates
1942      in the ocean (buoyancyRelation='OCEANICP')
1943      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1944        Theta, Salinity, and Pressure in the parameter list. This routine is
1945        presently contained in find_rho.F. This routine does not give the
1946        correct density for 'POLY3', which would be a z-dependent reference
1947        density.
1948    o cleaned up find_rho
1949      - removed obsolete 'eqn' from the parameter list.
1950    o added two new verification experiments: gop and goz
1951      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1952    checkpoint46g_pre
1953    
1954    checkpoint46f_post
1955    o Enable tangent linear (forward mode) gradient checks:
1956      - extended active file handling to g_... files
1957      - added TANGENT_SIMULATION to theSimulationMode
1958      - extended grdchk package accordingly
1959    o added tangent linear setup in verification/carbon/code_ftl
1960    o added adjoint setup in verification/front_relax/code_ad
1961    
1962    checkpoint46e_post
1963    o Added new equation of state -> MDJWF
1964      - EOS of McDougall et al., 2002, JAOT, submitted
1965      - caveat: the equation of state is only valid for a smaller (more
1966        realistic?) range of values than JMD95P/Z and UNESCO
1967      - added masks to the calculation of pressure in store_pressure
1968      - added more check values for density in check_eos (ini_eos.F), some of
1969        the old check values are out of the range of the MDJWF-eos, so don't
1970        expect perfect matches for those
1971    checkpoint46e_pre
1972    
1973    checkpoint46d_post
1974    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1975      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1976      case of pressure coordinates. eosType='JMD95Z' in
1977      combination with buoyancyRelation='OCEANICP' now causes an error.
1978    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1979      in find_alpha/beta.
1980    checkpoint46d_pre
1981    
1982    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1983      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1984    
1985    checkpoint46c_post
1986    o Changes necessary for ocean in p-coordinates
1987     -  Added new buoyancy relation = 'OCEANICP'
1988     -  Added new parameters = gravitySign (this used to be contained inside
1989        the factor dRdZ which I added when we first switched to R coordinates).
1990     X GM/Redi is not compatible (yet)
1991     X bottom drag and no-slip need to be debugged.
1992    checkpoint46c_pre
1993    
1994    checkpoint46b_post
1995    o Added new equation of state -> JMD95Z and JMD95P
1996      - EOS of Jackett and McDougall, 1995, JAOT
1997      - moved all EOS parameters into EOS.h
1998      - new routines ini_eos.F, store_pressure.F
1999    o Added UNESCO EOS, but not recommended because it requires
2000      in-situ temperature (see JMD95)
2001    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2002      unesco.f to be used with POLY3
2003    checkpoint46b_pre
2004    
2005    checkpoint46a_post
2006    o Added (atmospheric) pressure loading
2007      - new field in FFIELDS.h, etc...
2008      - new cpp flag ATMOSPHERIC_LOADING
2009    o Changed hFacC to _hFacC in calc_phi_hyd.F
2010    o Added SHORTWAVE_HEATING to some files for consistency
2011    checkpoint46a_pre
2012    
2013    checkpoint46
2014    further merges from release1_p5
2015    o new ctrl package
2016      - adopted from ECCO environment to enable optimization
2017      - added Eliassen Palm fluxes to controls
2018    o added Eliassen Palm flux controls to gradient check package
2019    o cost package
2020      - Compatible with new ctrl package
2021      - added Eliassen Palm cost hooks
2022      - modif's of existing cost functions
2023    o Adjoint-related bug fixes in kpp:
2024      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2025      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2026    o autodiff package
2027      - flow directives:
2028        + new for S/R do_the_model_io
2029        + enhanced for S/R checkpoint
2030        + new gmredi.flow
2031      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2032        disable adcommon.h/g_common.h by default.
2033      - fixed problem for adjoint of global_max
2034    o modified verification/carbon/
2035    o New setup for adjoint of global_ocean
2036    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2037    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2038    o incorporated hooks for sponge layer code (external_forcing.F)
2039    
2040    checkpoint45d_post
2041    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2042    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2043      (affects plume_on_slope "cg2d" output)
2044    o add new parameter deltaTfreesurf for free-surface time stepping
2045    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2046    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2047    o change phiMin in exp1 (to agree with documentation)
2048    o add new flags:
2049     - T,S forcing inside/outside Adams-Bashforth
2050     - turn off temp,salt advection and/or forcing
2051     - for each tracer, define internal flag for multiDimAdvection & A-B
2052    o monitor: change definition of KE to check conservation of Energy
2053    
2054    checkpoint45c_post
2055    o Removed f90 comments ("!")
2056    o Modified initialisations to enable exf package for MITgcm
2057      (without invoking ECCO_PACKAGE).
2058    o modifications to gradient check package (Martin Losch)
2059      - enable centered differences
2060      - modified format of standard output
2061    
2062    checkpoint45b_post
2063    o cleaned exchange calls in cg2d
2064    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2065    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2066      to configure barotropic setup (Martin Losch)
2067    o moved some initialisations within bi,bj loop in dynamics
2068      (TAF flow dependency)
2069    o in initialise_varia, moved call packages_init_variables
2070      before convective_adjustment_init
2071      (corresponding adjustment of TAF tape initialisation).
2072    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2073    
2074    checkpoint45a_post
2075    o compute Rho over the whole domain (extend iMin,jMin indices)
2076    o specific exchange for X-slice domain (case Ny=1)
2077    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2078    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2079    
2080    checkpoint44h_post = checkpoint45
2081    o Fix to restore differentiability:
2082      place at which packages_init_variables is called in
2083      initialise_varia is crucial for reverse control flow.
2084    o modifications in GMRedi to enable stable adjoint
2085      (corresponding modif's in thermodynamics, dynamics)
2086    o added missing hook for sponge layer code in external_forcing
2087    o modified test cost functions
2088    o storing in gad_advection (plus removal of write(0,*)!
2089    o missing headers TR1.h added in convective_adjustment routines
2090    o errorMessageUnit set non-equal zero in eeboot
2091      (conflict on some platforms, e.g. IBM SP3)
2092    o modified carbon verif.
2093    
2094    checkpoint44h_pre
2095    o vertical grid option: allow to put the Interface at the middle between
2096      2 cell-centers ; replace delZ in pkg/kpp by drF.
2097    o GM Advective form: Tracers are advected using the residual transport (=
2098      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2099    
2100    checkpoint44g_post
2101    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2102      results) ; ifdef missing in thermodynamics.F
2103    
2104    checkpoint44f_pre,checkpoint44f_post
2105    o added PTRACERS package
2106      This allows an arbitrary number of passive tracers to be integrated
2107      forward simultaneously with the dynamicaly model.
2108      + Implemented so far:
2109        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2110        - I/O and checkpointing
2111        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2112      + Not implemented so far:
2113        - KPP
2114        - OBCS
2115      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2116        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2117        line in data.pkg.
2118      + This package is disabled by default since it increases storage.
2119    
2120    
2121    o testscript: added -cleanup option
2122    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2123                 b) enable to filter 2D fields.
2124    
2125    checkpoint44e_pre,post
2126    o re-wrote convective adjustment to use pre-calculated weights
2127      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2128      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2129      Original calls to convect() still in place.
2130    
2131    chkpt44d_pre,post
2132    o added missing EXCLUDE_MONITOR flags
2133    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2134      (incompatible typ in MIN/MAX expressions caused problems
2135      on IBM SP3)
2136    o in genmake added variable MAKEDEPEND
2137      plus resetting for case SunOS
2138    o added timer_stats.c routine for IBM SP3
2139    o removed variables in dynamics
2140    !!! I forgot to create tag chkpt44d_pre !!!
2141    !!! But chkpt44d_pre = chkpt44c_post    !!!
2142    
2143    o real fresh water flux implemented with non-linear free-surface.
2144    
2145    chkpt44c_pre,post
2146    o few fix (mask in shap_s2, EmPmR in external_field_load,
2147      USE_NATURAL_BCS in solve_for_P);
2148    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2149    
2150    checkpoint44b_pre/_post
2151    o merge of relevant stuff from the ecco-branch:
2152      - genmake: removed $S64 overwrite for case SunOS
2153      - pkg/exf: update and corrections for field swapping and obcs
2154      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2155                  harmonized between ECCO and MITgcm
2156      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2157                      updated checkpointing_lev... lists for obcs
2158      - model/src: minor changes in forward_step, plot_field
2159                   added directive for divided adjoint in the_main_loop
2160      - pkg/mdsio: added mdsio_gl_slice
2161    
2162    o check parameters & config (chkpt44a_pre,post)
2163    o OBC and NonLin_FrSurf.
2164    
2165    checkpoint44
2166    o fix bug in mom_vi_del2uv
2167    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2168    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2169    o update AIM experiments (NCEP input files)
2170    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2171    o added some stuff for AD
2172    
2173    checkpoint43
2174    o added two new advection tests
2175    o added global 4x4 degree ocean test
2176    o added test of H&S94 with free surface on cube
2177    o some final mods for gradient check, adjoint,...
2178    
2179    checkpoint42
2180      Fixed AD-related problems:
2181    o Store directives up-to-date with re-arranged Adams-Bashforth
2182      (mainly thermodynamics.F)
2183    o New store directives for multi-dim. advection schemes
2184      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2185      * new common block and key passkey
2186      (mainly gad_advection.F)
2187    o Modified store directives for split of dynamics/thermodynamics
2188      for the case ALLOW_KPP
2189    o Cleaned argument list for timestep_tracer.F
2190    
2191    checkpoint41
2192    o re-formatted/added comments in prologues of key subroutines
2193      to work with protex
2194    
2195    checkpoint40
2196    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2197    o added FLT (floats) package from Arne along with demo. experiment
2198    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2199      implementation of forward-in-time forcing terms
2200    o more mods for non-linear free-surface including new variable
2201    o modified multi-dim method to work on cube
2202    o bug fix in KPP (from DM)
2203    
2204    checkpoint40pre9
2205    o added DST advection schemes
2206    o fix MPI bug on SGI's
2207    o modifications for non-linear free-surface
2208    o fixed conditionals for fixed flow/passive tracer only mode
2209    o added tension/strain form of stress tensor
2210    o changes to commenting of arguments for TAF/TAMC
2211    o added/updated many matlab scripts
2212    o added multi-dimensional advection method for tracers
2213      
2214    checkpoint40pre8
2215    o new package rw/
2216      Added method for dumping intermediate local arrays:
2217      mdsio_writetile - same as mdsio_writefield except works from inside
2218                        bi,bj loop
2219      mdsio_writelocal - same as mdsio_writetile except works for local
2220                         arrays
2221      write_local_r? - higher-level wrapper for mdsio_writelocal
2222      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2223      Example given at end of mom_vecinv.F that dumps some local arrays.
2224    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2225      control flux-form versus vector invariant code.
2226      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2227      or genmake -DISABLE ...
2228    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2229      (additional storing is now needed for case vecinv;
2230      currently nothing implemented to switch this storing off
2231      in case fluxform is used since no CPP flag available).
2232    
2233    checkpoint40pre7
2234    o bug fix in dynamics.F
2235      calc_viscosity called before k=1,Nr loop.
2236    o added some #ifdef's ALLOW_PASSIVE_TRACER
2237    o cleaned initialisations in ctrl_map_ini
2238      related to TAF
2239    
2240    checkpoint40pre6
2241    o split dynamics into thermodynamics & dynamics
2242    o corresponding split of calc_diffusivity into
2243      calc_diffusivity, calc_viscosity
2244      (kpp_calc_diff, kpp_calc_visc).
2245    o Added diffkr, kapgm to control variables
2246    o bug fix in gmredi_slope_limit for ldd97
2247    
2248    checkpoint40pre5
2249    o proper initialization of Adams-Bashforth time stepping
2250      + uses forward step for very first step of model (iter=0)
2251    o re-generated *all* output since almost all output is modified by this
2252      change (sorry but we've been putting this one off for about 2 years)
2253      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2254        *not* regenerated since they are already out of date and I don't
2255        want to create the impression that they are suddenly working.
2256    o removed KAP stuff for DEC's
2257    o modified/added many .cvsignore files in */code and */input
2258    o added new expt "solid-body.cs-32x32x1"
2259      + this uses an alternative form of ini_curvilinear_grid.F which
2260        is not necessarily any better than the current one...
2261    
2262    checkpoint40pre4
2263    o added re-initialisations of utrans,vtrans,rtrans in
2264      calc_common_factors which are crucial for TAF.
2265    o extended iMin,jMin range for calc_common_factors,
2266      calc_diffusivity
2267    o added option ALLOW_PASSIVE_TRACER
2268    o a few minor updates and fixes
2269    
2270    checkpoint40pre3
2271    o created calc_gtr1.F for gad package
2272    o split the_main_loop and re-introduced forward_step
2273    o some recomputations of nIter0 for TAMC
2274    
2275    checkpoint40pre2
2276    o Updated to latest branch of AJA, JMC
2277    o Added gradient check package
2278    o Added routines for passive tracer handling
2279    o Added carbon sequestration sensitivity experiment
2280    
2281    checkpoint39
2282     o Modifications and fixes to support TAMC
2283       (mainly missing or wrong directives)
2284     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2285       in addummy_in_stepping
2286     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2287     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2288     o Included following packages:
2289       cal: calendar
2290       exf: external forcing
2291       ecco: essential routines to control use of cal, exf
2292             (NB: this is not the full ECCO environment)
2293     o disabled some packages by default in genmake
2294    
2295    checkpoint38
2296     o see notes_c37_adj.txt
2297     o corrected wrong layer index in external_forcing_t
2298     o replaced the_main_loop/forward_step by the_main_loop
2299     o removed forceoutput from write_state
2300       (replaced criteria for initial/final state)
2301     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2302    
2303    checkpoint37
2304     o mdsio.F routine split and packaged in pkg/mdsio
2305       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2306        used unless genmake -disable=mdsio)
2307     o allow a more precise surface-geopotential gradient for the atmosphere
2308       taking into account the change in space of Alpha (=1/rho) at the surface.
2309     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2310       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2311     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2312       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2313       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2314     o Time-Average diagnostics defined as a pseudo package "timeave".
2315     o pickup files : old pickup (before c35) did not work with new code (c35
2316       and after) unless activating 2 commented lines in initialise-varia.
2317     o Non-Hydrostatic pickup file Pb fixed.
2318     o bug with Rigid-lid version (since c35) fixed.  
2319    
2320    checkpoint36
2321     o implement Crank-Nickelson barotropic time-stepping
2322     o recover Time-Average diagnostics
2323     o fix Pb in checkpoint (PR#19)
2324     o AIM become a standard package ; clean unused CPP_kees
2325    
2326    checkpoint35
2327     o subtantial rewrite of dynamics.f
2328     o allows staggered time-stepping
2329     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2330     o added bottom drag (linear + quadratic)
2331    
2332    checkpoint34
2333     o Modified exchange routines for correct reverse simulation.
2334     o Added verification output to comply with bug fix in impldiff.F
2335       as of c33 (exp2, natl_box).
2336     o Corrected store directives in dynamics.F
2337     o Corrected array boundaries in impldiff.F
2338     o Corrected array dimensions in gmredi.
2339       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2340     o Added routine GLOBAL_SUM_INT to global_sum.F
2341     o Added mdsio_gl.F for ECCO purposes.
2342    
2343    checkpoint33
2344     o Fixed bug in lower BC in impldiff.F
2345     o Fixed confusion about units of forcing arrays in FFIELDS.h
2346       namely Fu,Fv,Qnet,Qsw,EmPmR:
2347       - Removed verification/natl_box/code/external_fields_scale.F
2348         (did not differ from that in model/src)
2349       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2350         (see FFIELDS.h for description)
2351       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2352         kpp_calc.F and kpp_transport_t.F
2353       - Removed model/src/external_fields_scale.F and calls to it
2354       - verification/natl_box uses flux data with "atmospheric" sign so
2355         a special version of external_fields_load.F is used to
2356         change the data as it's read in. This way, the arrays
2357         have the right units and signs at all times tha a user could
2358         possibly use them.
2359     o Corrected genmake to delete a temporary file during configuration
2360    
2361    checkpoint32
2362     o Scaling of forcing fields moved from external_forcing.F to
2363       external_fields_scale.F, called directly after loading fields.
2364     o Surface relaxation terms added to surface tendency fields in
2365       extra subroutine.
2366     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2367       fields.
2368     o Changes in GMRedi to comply with packaging structure.
2369     o Modifications and bug fixes in KPP package.
2370     o Verification experiment for KPP added (verification/nat_box/)
2371    
2372    checkpoint31
2373     o Packages interface brought in line with defined standard
2374       -> new routines packages_...F
2375       -> changes in initialise_fixed.F, initialise_varia.F
2376       -> enables initialisation interface for ECCO package
2377     o Rescaling of external forcing fields immediately after read
2378       (removed from external_forcing.F)
2379       -> new: surface_fields_scale.F
2380       -> affects ini_foorcing.F, external_fields_load.F
2381     o Computation of surface tendencies before tendency updates.
2382       -> new: external_forcing_surf.F
2383     o Change of variable names useGMRedi, useKPP, useECCO
2384     o Further changes in dynamics.F, impldiff.F for TAMC
2385     o Tested for experiments 0, 2, 4.
2386       - not yet tested for GMRedi.
2387       - not yet tested for KPP.
2388    
2389    checkpoint30
2390     o Updates for OBCs
2391     o New experiment for test OBCs (internal_wave)
2392     o New output.txt in verification/exp4/results/
2393     o Updates for KPP: calculation of viscosity corrected, new variables
2394       kpp_dumpFreq and kpp_taveFreq
2395     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
2396       and entry for T90 in genmake
2397    
2398    checkpoint29
2399     o packaged KPP and GM/Redi
2400    
2401    checkpoint28
2402     o Corrected initialization of hFacMin for difference vertical coordinates
2403     o Modified calculation of partial cell thickness to more robust algorithm
2404     o config_summary.F: replaced write_1D_... by write_0D_...
2405       read_write.F: added subroutines write_0D_...
2406     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
2407       included some initialisations required for TAMC.
2408     o routine calc_isoslopes: modified sqrt computation to make it
2409       differentiable for zero argument.
2410     o routines dynamics, impldiff:
2411       included store directives and tape key computations required for TAMC.
2412     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
2413    
2414    checkpoint27
2415     o fixed calc_isoslopes() to so that cancellation of terms in tensor
2416       formulation works properly with variable resolution.
2417     o restructured the calling tree between the_model_main() and dynamics()
2418     o split initialise() into initialise_fixed() and initialise_varia()
2419     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
2420       in new routine ini_psurf()
2421    
2422    checkpoint26
2423     o moved some #ifdef in optional routines to encompass everything
2424       except the argument declarations. This was using up some memory.
2425     o fixed macros like _ADT to work with both versions of Linux cpp
2426     o cleaned up some unused and uninitialized variables
2427       (helps when debugging with strict compile options)
2428     o split up CPP_EEOPTIONS.h into options and macros
2429       (macros are now in eesupp/inc/CPP_EEMACROS.h)
2430     o patch for 2 processor JAM mode
2431    
2432    checkpoint25
2433     o updates for OBCs and NH
2434     o dramatically reduced memory usage
2435     o added "JAM" routines for use on Artic network
2436     o parameterization of convection by implicit vertical diffusion
2437     o added a diagnostic of convective index
2438     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
2439       (this is was partly for OBCs and NH but also in anticipation of
2440        an explicit free-surface option)
2441     o initial state input files for U and V
2442    
2443    checkpoint24
2444     o Removed some spurious "REAL"s
2445     o Updated KPP to latest version from JPL
2446     o Added a COS(latitude) in horizontal viscosity
2447    
2448    checkpoint23
2449     o Added del^4 diffusion for salt and temperature
2450     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
2451    
2452    checkpoint22
2453     o Made many small changes: implicit none, format(i5), etc...
2454     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
2455    
2456    checkpoint21
2457     o Introduced new I/O package that supports direct-access records (mdsio.F)
2458     o Split-up mid-level I/O routines
2459     o Updated input data for experiments 0,1,2,4 and 5
2460     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
2461    
2462    checkpoint20
2463     o Tidied up open-boundaries some more
2464     o Added non-hydrostatic code
2465     o Fixed some input data
2466     o Modified MPI start-up to work in "coupled" context.
2467    
2468    checkpoint19
2469     o Tidied up directory structure for verification experiments.
2470     o Added new code for open boundaries.
2471     o Corrected advective terms near boundaries.
2472     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
2473     o Implemented free-slip/no-slip BCs and del^4 dissipation.
2474     o Split default parameters out of ini_parms.F into set_defaults.F.
2475    
2476    checkpoint18
2477     o Further changes for optional code generation with
2478       CPP - ugh!
2479    
2480    checkpoint17
2481     o Beginning to incorporating modularity
2482       for supporting atmos. and ocean configs.
2483     o Small changes for TAMC complinace
2484     o New ultra simple test case. Barotropic box
2485       configuration "exp0".
2486    
2487    checkpoint16
2488     o Minor changes to exchange routines to support
2489       accumulation in reverse mode. Adjoint of an
2490       assignment is an addition.
2491     o Changes to support compilation by TAMC (LR(1)
2492       syntax) and by g77 under Linux ( 72 character
2493       limit ).
2494    
2495  checkpoint15  checkpoint15
2496   Rewrote exchange routines to allow   Rewrote exchange routines to allow
2497   o General tile <-> tile connectivity.   o General tile <-> tile connectivity.

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