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revision 1.82 by mlosch, Mon Aug 19 14:21:30 2002 UTC revision 1.542 by jmc, Wed Sep 7 15:24:03 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    checkpoint57r_post
8    o make MNC variable initialization happen earlier
9    o add diagnostics for (almost) each term of the momentum Eq.
10    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
11    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
12    o remove MINIMAL_TAVE_OUTPUT option ;
13      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
14    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
15      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
16    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
17    o add time-dependent SST, SSS control
18    o cost terms in ecco/ modularized (new cost_generic.F)
19    o cost_averages routines are modularized (new cost_averagesgeneric.F)
20    o new infrastructure for seaice model vs. obs misfits in seaice/
21      * driver from the_main_loop.F is seaice_cost_driver.F
22      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
23      * gradient check in Exp. 6a of natl_box_adjoint/
24    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
25      (see README file)
26    
27    checkpoint57q_post
28    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
29    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
30      - bug was reported by Jean-Michel and Ian Fenty
31    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
32      update exp. cpl_aim+ocn output.
33    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
34      Needed for high-res. runs with large global files
35      to be able to limit tapelev size
36    o Changed some tests for adjoint:
37      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
38      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
39      * global_ocean.90x40x15/ back to default 3-level checkpointing
40    o Modifications to enable scripted COMMON to MODULE conversion
41      * verification/OpenAD/code/ has necessary scripts and description;
42      * converts, compiles and runs successfully;
43    
44    checkpoint57p_post
45    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
46    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
47      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
48    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
49    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
50      (was already the case for dissipation with mom_vecinv,
51       and also the case for grad.PhiHyd when staggered-timeStep)
52      This will allow to put dissipation out-off the AB time-stepping.
53     Unfortunately, affects truncation error. Update output of exp. that "fails"
54      (cg2d matching number) and leave the others for later: front_relax(10),
55      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
56      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
57    
58    checkpoint57o_post
59    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
60      (2) its ready to be documented during the 20050801 DocFest
61    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
62      for ideal_2D_oce and lab_sea on linux_ia32_g77
63    o set to #undef CTRL_SET_OLD_MAXCVARS_30
64      in global1x1_tot/code_seaice_adj to access indices 32, 33
65      (worth another tag)
66    
67    checkpoint57n_post
68    o adding precip control xx_precip 32
69    o adding swflux control xx_swflux 33
70    o Replacing 10 forcing penalty cost routines by 1 generic.
71    o Implementing partitioning in time-mean and variable adjustment
72      for atmos. state.
73    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
74    o in natl_box_adjoint:
75      * updated exp 1 to 10
76        (but does not have time-mean vs. variable split results yet)
77    o updated global1x1/*_seaice_adj/
78      to incorporate latest changes
79    o enable useSingleCpuIO for mdsio vector routines
80      (applies in particular to tapelev I/O)
81    o removed inefficient K-loop in all active_file*control*.F
82    
83    checkpoint57m_post
84    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
85      and advect_cs (use EXCH-2 and standard cs-32 grid files).
86    o pkg/exch2: filling of face-corner halo regions is optional
87      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
88    
89    checkpoint57l_post
90     tag before updating tutorials (pre-release-2)
91    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
92       for output and interpolation of input fields onto model grid)
93    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
94       Affects results of exp. rotating_tank ; update output.txt.
95    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
96          and taking the square quantity and/or using a fraction-weight field.
97    o fix aim_diagnostics_init.F mate numbers.
98    o add mnc output capability to diagnostics/diagstat and update
99      our cvsignore files for the ACSII output generated
100    
101    checkpoint57k_post
102    o lab_sea now uses diagnostics package and provides a suite of
103      new EXF diagnostics output.
104    
105    checkpoint57j_post
106    o exf
107      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
108        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
109        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
110      * extended diagnostics output
111        - now includes all EXF variables
112        - hs, hl moved to common block
113        - separate S/R for diagnostics, called after ctrl vector is added
114        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
115        - EXFqnet contains true Qnet (i.e. includes qsw)
116      * updated verif. lab_sea, global_with_exf
117      * Rearranging hflux (exf_mapfields -> exf_getforcing)
118        to ensure that diagnostics sees a true EXFqnet
119    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
120    o diagnostics pkg: change pointers so that 1 diagnostic can be used
121      several times with different frequencies.
122    o mnc-ify the thsice package as requested by Daniel Enderton
123      - the monitor--MNC output needs work
124      - many attributes need to be added (most are currently blank)
125    o mnc-ify theaim_v23 package as requested by Daniel Enderton
126      - many attributes need to be added (most are currently blank)
127    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
128    o add Sadourny like discretization to the 4th.O vorticity advection scheme
129    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
130      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
131         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
132    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
133     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
134    
135    checkpoint57i_post
136    o Diagnostics package was changed: diagnostic allocation is now deactivated
137      by setting an empty file name in the namelist (used to be by setting 0 frequency)
138    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
139      add 1rst Order upwind vertical Shear.
140    o add a quick fix for A/B checkpointing in OFFLINE mode
141    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
142      end-run around the C/Fortran linking horror in eesup/src/timers.F
143    o added pkg/runclock: allows user to terminate run based on wall clock
144    o added non-hydrostatic scaling parameter: nh_am2
145    o pkg/my82: futile attempt to make results compiler-independent by adding
146      some "_d 0", etc. no effect.
147    o for mnc output, fill the 'T' coordinate var with myTime and create a
148      separate 'iter' variable for iteration count
149    o pkg/diagnostics:
150      add new capability: output of Global/Regional & per-level statistics ;
151      tested against monitor output (including land & thSIce) on various exp.
152    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
153    
154    checkpoint57h_done
155      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
156      data.diagnostics, data.gchem, data.ptracers) is done.
157    
158    o pkg/diagnostics: prepare for Global/Regional statistics.
159      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
160    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
161      and rename it: DIFFERENT_MULTIPLE
162    
163    checkpoint57h_post
164    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
165    o pkg/diagnostics: change output frequency, now in seconds (instead
166      of Nb of iterations). This requires to change data.diagnostics.
167    checkpoint57h_pre
168    
169    o in mnc, let the user create the output dir if both mnc_outdir_date
170      and mnc_outdir_num are false
171    o add fflags() to pkg/diagnostics which allows one to specify, on a
172      per-file basis, the file precision [default behavior is unchanged]
173    o added diagnostics to pkg/kpp, including computation of mixed layer
174      depth based on a temperature/density criterion
175    o updated verification/natl_box to test the new pkg/kpp diagnostics
176    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
177    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
178    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
179      not mnc -- this mistake was found by JMC and is now corrected
180    
181    checkpoint57g_post
182    o add Adams-Bashforth 3rd Order time stepping:
183      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
184      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
185    checkpoint57g_pre
186    
187    o make lambda[Theta,Salt]ClimRelax spatially varying
188      (default remains spatially uniform constant based on tau)
189    o added new control variables
190      * init. uVel, vVel, etanN
191      * lambda[Theta,Salt]ClimRelax
192    o separate masks used for ctrl_pack/unpack 'from write_grid' output
193      (suggested by G. Forget)
194    
195    checkpoint57f_post
196    o add parameter "baseTime" = model base time = time at iteration zero
197      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
198      account for baseTime shift
199    o move Coriolis arrays from PARAMS.h to GRID.h
200    checkpoint57f_pre
201    
202    o mnc-ifying the seaice package
203    o introduced an alternative length scale calculation for use in the limiting
204      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
205    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
206    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
207      as well as grad(vort3).  Made it compatible with both approximate form
208      for the cubed sphere and full form of these gradients.  Added flag
209      useFullLeith to select between approximate and full form.  
210    o add "d0" in getcon.F to reduce differences between compilers/platforms
211      update output.txt of exp. fizhi-gridalt-hs
212    o change port_rand funtion to allow to set the seed.
213    o fix obscure MNC bug involving conversion between reals and integers
214      - it caused no problems with certain (eg. gcc, ifc) compilers but the
215        new version is now more standards-compliant
216    o adjoint-related modifications
217      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
218      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
219      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
220    
221    checkpoint57e_post
222    o Adding eddy stress controls a la Ferreira et al.
223    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
224    
225    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
226      update output.txt of exp. fizhi-gridalt-hs
227    o add more "Z" dimensions and associated coordinate vars to MNC
228    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
229    o parameter calendarDumps: when set, approximate months (30-31 days) and years
230      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
231      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
232      months and years.  Requires pkg/cal.
233    o diagnostics: add pickup functionality
234      - off by default for backwards compatibility
235      - current version only uses MDSIO -- MNC will be added
236    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
237    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
238    
239    checkpoint57d_post
240    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
241    o modify verification/ideal_2D_oce so that it tests the creation of mnc
242      output from the diagnostics package
243    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
244    o make genmake2 more portable by using ".$FS" instead of ".f" for more
245      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
246    o add coordinate variables to the MNC output from the diagnostics package
247    o change MNC-flags default value: true when useMNC=TRUE
248    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
249      the ability (off by default) to read the grid information using MNC
250    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
251    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
252    o do snap-shot diagnostics at the middle of the time-interval (instead of
253      at the end).
254    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
255      new test for AIM with thSIce + slab-ocean
256    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
257    o move state variable diagnostics to the beginning of the time step ;
258      (note: still needs some work specially for snap-shot diagnostics)
259      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
260    
261    checkpoint57c_post
262    o Change testing option (-ieee) to get closer agreement between g77 & ifort
263    o generate new output.txt files on faulks with g77 & the new -ieee option
264    checkpoint57c_pre
265    
266    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
267      update output.txt of exp. global_ocean.90x40x15
268    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
269      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
270    o add saltFlux(+File) forcing capability with periodicExternalForcing
271    o allow to use pkg diagnostics for GM-Redi & ThSIce output
272    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
273    o improvements for the MNC output from DIAGNOSTICS:
274      - correct handling of the unlimitied dimension
275      - all dims now have associated coordinate variables
276      - variables located at U, V, and Corner ("Z") points are now written
277        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
278        *all* data points are output
279    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
280    o added pkg/seaice/seaice_monitor.F
281    o mdsio_readfield.F can now read files visible only to master MPI process.
282    o pkg/seaice: some test code for ice-modified ocean stress
283    o exf_getffields interpolation defaults to bilinear for all scalar forcing
284      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
285      spurious negative numbers for precipitation and humidity.  Will cause
286      some small numerical differences for integrations using pkg/exf/exf_interp.F.
287    o pkg/ctrl/
288      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
289        May be enabled via doPackDiag
290      *  introduce z-scaling of
291         + gradient (doZscalePack) and
292         + control (doZscaleUnpack)
293    o pkg/mdsio/
294      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
295      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
296    
297    checkpoint57b_post
298    o simplify options in diagnostics_fill arguments (remove weird combinations)
299    o fix MNC coordinate variables so that they now contain per-face index
300      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
301      general, EXCH2 grids are only aligned to a "local" coordinate system
302    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
303    o Implement instantaneous output within pkg diagnostics:
304      setting a negative frequency in data.diagnostics produces
305     "snap-shot" output (as opposed to time-average if freq > 0)
306    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
307      NOTE: change ptracer diagnostics name: use 2 characters to work with
308            more than 9 tracers. Add also diagnostics of advect & diffus flux.
309    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
310      becomes the coordinate variable for the 'T' dimension
311    o add CF-style coordinate variables to MNC
312      - just a first cut:  numbers are meaningless on the cubesphere and
313        missing along the T axis but otherwise it works!
314    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
315    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
316    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
317      this is based directly on what the model compute, so that the content of
318      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
319    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
320    o clean up build options files for SunOS, in particular
321      - remove -traditional from xmakedepend
322      - change -xarch=v9 to -xarch=native for f77
323      - restore use of make (not gmake)
324      - add CC=gcc if using g77
325    o changes per discussion of AM, JMC, & EH3 today:
326      - move redundant "grid" variables out of "state" -- in preparation of
327        creating proper CF-style coordinate variables and in recognition
328        that any/all grid variables can be easily copied (eg. w/NCO) from
329        the grid files into any of the other NetCDF files
330      - *always* output grid variables with MDSIO (this will eventually be
331        changed)
332      - output MNC grid file if useMNC is true
333    o every instance of _END_MASTER() has been found and replaced with
334      _END_MASTER( myThid ) in order to satisfy certain picky Sun
335      preprocessors
336    o re-arrange diagnostics pkg initialisation:
337     - allow each package to extend the available diagnostics list
338     - add some checking and fix small problems (multi-threaded, ...)
339     - new S/R diagnostics_fill (replace fill_diagnostics):
340       look through the short list of active diag. (instead of the long list)
341       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
342    
343    checkpoint57a_post
344    o this set of changes restores TAMC compatibility
345      tested for global_ocean.90x40x15 adjoint on trough
346      (what a pain)
347    
348    checkpoint57a_pre
349    o some modifs in tools/build_options for sunos
350    o call ctrl_pack for ctrl at end for optimcycle=0
351    
352    checkpoint57
353    o add horizontal bi-harmonic viscosity for vertical velocity
354      - new parameter viscA4W (defaults to viscA4)
355      - affects only non-hydrostatic code
356      - to be done: no-slip lateral boundary conditions
357    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
358    o implement Implicit Vertical advection for pTracers
359    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
360      (implemented also for implicit vertical diffusion & advection)
361    o OBCS: extend application of tracer open boundary conditions
362      to a strip beyond the boundary of width Olx/Oly
363    o add call monitor to TAF set of required calls (flow directives)
364      and include in natl_box_adjoint
365    o untangle a few ifdefs related to cost, ctrl, autodiff
366      untangel a few ALLOW_ECCO_OPTIMIZATION
367    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
368      (theta2, salt2 in ecco_cost_weights)
369    
370    checkpoint56c_post
371    o OBCS as control variables
372      - update ctrl_ad_diff.list, obcs_ad_diff.list
373      - remove balance of obcs controls from default
374      - fix index bug nobcs in ctrl_init
375      - fix dummy fields filen in ctrl_pack
376      - add dummy weights for obcs
377    o lsopt: comment out fort.94 output
378    o optim:
379      - remove unnecessary header files
380      - adjusted namelists
381      - add xerbla.F to Makefile
382    o exf:
383      - multiple modifications of exf_check_range
384      - unit change in exf_init_runoff from [m/year] to [m/s]
385    o mdsio:
386      - i/o-vector change debugLevel from debLevA to debLevB
387    
388    checkpoint56b_post
389    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
390      is called from DO_THE_MODEL_IO
391      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
392      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
393      - clean up PTRACERS_WRITE_TIMEAVE a little
394    o add another verification experiment that tests both the cfc-pkg and
395      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
396      reactive tendencies treated inline with regular timestepping
397    o testreport previously did a lousy job of comparing small numbers, so
398      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
399      implemented in the little c-progam tmp_cmpnum.c which is embedded in
400      testreport.
401    o ptracers_monitor: bug fix for MPI
402    
403    checkpoint56a_post
404    o GCHEM: finish reorganizating the package
405      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
406        (introduces another 3D-array for each passive tracer, but only if
407        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
408        gchemTendency is not needed because the timestep is done separately)
409      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
410      - GCHEM is now---more or less cleanly---separate from PTRACERS
411      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
412        so clear to me how that should be done in a general way.
413    o CFC: improve formatting of output in CFC_ATMOS
414    o PTRACERS:
415      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
416        that ALL experiments with ptracers enable can be checked. This makes
417        GCHEM_MONITOR obsolete.
418      - include a runtime parameter PTRACERS_monitorFreq that defaults to
419        monitorFreq
420      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
421    o add PTRACERS (PTR0[1-5]) to testreport output
422    o exf_check_range:
423      * default changed to .TRUE.
424      * will check values for niter0 if debLevA, every timestep if debLevB
425      * STOP in exf_check_range if 'out of range'
426      * range chosen generous to allow for potential extema
427      TBD: a version with stricter range
428           permitted range would be runtime parameters
429    o GMredi:
430      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
431      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
432      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
433    o GCHEM:
434      - move call to GCHEM_FORCING_SEP, so that it is now called before
435        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
436      - introduced a useGCHEM runtime flag and applied it everywhere.
437      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
438        this flag is now only visible within GCHEM-pkg routines.
439      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
440        be replaced by a 3D array that is computed before thermodynamics; for
441        this, the tracer ID iTracer had to be included into the parameter list
442        of ptracers_forcing
443      - set up forward_step to call gchem_forcing, that will replace
444        gchem_forcing_int in ptracers_forcing
445      - cleaning up
446    o small cleaning of exch2: remove files that are also in eesupp/src
447    
448    checkpoint56
449    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
450    o mnc: cleanup "full" files--fixes out-of-memory problem
451    o ECCO-GODAE
452      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
453      * fully merged and updated from SIO code
454        windstress sign change affects
455        - exf_inscal_[u/v]stress
456        - sign of xx_tau[u/v] adjustments
457        - signs in cost_scat
458      * ctrl_get_gen: avoid update of tau[u/v] for first few days
459      * natl_box_adjoint updated and compressed
460      * 2-level checkpoint switch added
461        (tested in EXP. 1 of natl_box_adjoint)
462      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
463    o SVD
464      * first complete, non-hacked version for SVD calculations
465      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
466        performed via direct access files admtlm_vector.it????
467        (via ctrl_[un]pack)
468      * optimcycle is used for ARPACK iteration counter
469        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
470      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
471        and add linear transforms where necessary
472      * controls are initial/final SST, SSS (can be extended; need to check
473        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
474    o mdsio: filename info to both stderr, stdout
475    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
476      from sign change
477    
478    checkpoint55j_post
479    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
480      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
481    o add consistent build directories and .cvsignore files to verification
482    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
483    o make all subroutines 30 or less characters in length for certain older
484      compilers to work (a thorough search only turns up two routines in
485      pkg/ptracers)
486    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
487      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
488    
489    checkpoint55i_post
490    o change arrays for total vertical diffusivity (2.D if explicit,
491      3.D if implicit) ; each ptracer uses its own background value.
492    o added mnc/NetCDF output capability to ocn_compon_interf
493      - added bits to verification/cpl_aim+ocn so that it can run on
494        ITRDA and other clusters without the mpirun "-wd" option
495    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
496      configuration
497    o give MNC the ability to create additional files rather than
498      exceeding a specified file size limit "MNC_MAX_FILESIZE"
499      - the default is just less than 2GB which is a practical limit
500        on many systems
501    o Compute the non-local term using either KPP vertical diffusivity (=default)
502       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
503    
504    checkpoint55h_post
505    o add verification test "vermix"
506    o remove all the *_ioinc flags and replace with the single global
507      outputTypesInclusive flag
508    o allow to set a vertical profile of vertical diffusivity for T & S
509    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
510    o useMNC moved from data.mnc to data.pkg
511    
512    checkpoint55g_post
513    o Renaming carbon AD experiments to comply with testreport conventions
514    o Updating adjoint of Held-Suarez hs94.1x64x5
515    o Fixing directives for non-ECCO forward_step, after ECCO directives
516      have been fixed to avoid recomp. of do_oceanic_phys
517      Works well for global_ocean.90x40x15,
518      but recomp. issue remains for carbon
519    o Updating adjoint output for natl_box_adjoint after
520      pkg/ecco has been modified (see taga c55d_post)
521    
522    checkpoint55f_post
523    o rename to timeave_init_fixed
524    
525    checkpoint55e_post
526    o some delicate re-shuffle of store directives to avoid one
527      extra call of do_oceanic_physics
528      affects ecco_the_main_loop.F, do_oceanic_physics.F
529      checkpoint_lev1_directives.h
530    o NB: this may break global_ocean adjoint temporarily,
531      but it is clear how to fix it. Will do later, need this now.
532    
533    checkpoint55d_post
534    o ECCO specific cost function terms (up-to-date with 1x1 runs)
535    o ecco_cost_weights is modified to 1x1 runs
536    o modifs to allow observations to be read in as
537      single file or yearly files
538    o enable to read exf forcing fields as either
539      single file or yearly files (flag useExfYearlyFields)
540    checkpoint55d_pre
541    
542    o switch between 2-level and 3-level checkpointing
543    o add ability of MNC to write local and "partial" (eg. 2D slices where
544      the full 3D field is never actually stored) arrays to NetCDF files
545      with the correct (that is, the complete multi-dimensional) set of
546      array indicies
547      - used in mom_vecinv() to write the diagFreq output
548      - tested (demonstrated) in verification/aim.5l_cs
549    o further mnc-ification
550      - add verification/lab_sea to the list with mnc setups
551      - fix undefined mnc v-names in cd_code
552      - add kpp to mnc output (both snapshot and timeave)
553    o non-hydrostatic code
554      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
555        in calc_gw.F
556      - defaults to viscAh
557      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
558        friction or Leith) in non-hydrostatic mode, as long as there is
559        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
560    o pkg/cost
561      extend simple cost functions to treat time mean quantities
562      (T,U,V) via cost_accumulate_state from cost_tile
563    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
564        be 2 times larger than the minimum size the advection scheme requires.
565        now get a perfect conservation of salt in advect_cs test-exp (updated)
566    o GGL90 (Gaspar's TKE mixed layer)
567      - add horizontal diffusion of TKE, requires exchanges in
568        do_fields_blocking_exchanges, horizontal diffusivity is zero by
569        default. In OPA there is no horizontal diffusion of TKE but the
570        mixing coefficients are computed from a horizontal average of TKE of
571        6 points or so. I think that diffusion has a little more physical
572        justification.
573      - clean up ggl90_calc in the hope of reducing memory usage (this hope
574        was in vain)
575      - mask tke-variable in ggl90_init
576    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
577    o fix biharmonic diffusion on CS-grid.
578    o more obcs stuff
579      - added obcs_external_fields_load as an alternative to the EXF-pkg option
580        for reading boundary values. This routine is called from
581        obcs_prescribe_read
582      - updated obcs_check
583      - changed sponge layer relaxation parameter units for days to seconds
584      - turned off sponge layer by default
585      - changed argument list of OBCS_CALC to myTime+deltaTclock
586      - fixed about 35 bugs in obcs_external_fields_load
587    
588    checkpoint55c_post
589    o obcs stuff
590      - new runtime flags useOBCSprescribe, useOBCSbalance
591      - re-arranged obcs_calc
592      - moved exf_getobcs to obcs_prescibe_read
593        obcs_prescibe_read is called after ORLANSKI stuff
594        and independent of it (executable can contain all).
595      - updated obcs_check
596      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
597        These may be necessary only if tangential velocities are
598        prescribed at OB, not sure, needs testing.
599    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
600      which simplifies the calls and passes the ifc check-bounds test
601    
602    checkpoint55b_post
603    o add a 2D scalar, Z location, exchange_2 routine.
604    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
605      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
606      affects advect_cs results (for the wrong reason): update output.txt
607    o use a more standard discretization for biharmonic viscosity ;
608     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
609      affects results of dome set-up: update output.txt
610    o fix gad_advection.F (CubedSphere part), back to version 1.23
611    o fix bug in mom_vi_del2uv.F (CubedSphere part).
612    
613    checkpoint55a_post
614    o merged code to
615      * prescribe/read time-dependent open boundaries
616        (works in conjunction with exf, cal)
617      * sponge layer code for open boundaries
618      * each boundary N/S/E/W now has its own CPP option
619        (healthy for the adjoint)
620    
621    checkpoint55
622    o up-to-date adjoint of previous breaks
623      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
624      - global_ocean_ebm: adjoint still needs fix (TLM ok)
625      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
626      - carbon: * remove tr1-related adjoint verification
627                * add ptracer as control variable
628    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
629      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
630    
631    checkpoint54f_post
632    o in verification/carbin/ remove experiment related to
633      ALLOW_PASSIVE_TRACER (array tr1 etc)
634      code_ad/ input_ad/ results_ad
635    
636    o add two new packages
637      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
638        + subject to optimization (memory)
639      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
640        + subject to reordering (many GOTOs in the original code)
641        + so far opps is called for every (i,j) point, and then operates in
642          the vertical; one may want to reorder the scheme in order operate in
643          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
644          fields)
645    o overhaul of IO so that we now have flags for MDSIO and/or MNC
646      - all verification tests compile and run with linux_ia32_g77
647      - defaults are compatible with current input files--nothing
648        should change if you were not previously using MNC
649      - MNC output has been added in numerous places (eg. timeave)
650        but there are still a few writes not yet do-able with MNC
651        (this is in progress)
652      - flags now allow for either/or/both use of MDSIO and MNC and
653        documentation will soon follow
654      - numerous small formatting cleanups for ProTeX
655    o add version info (via BUILD_INFO.h) to MNC and stdout
656    
657    checkpoint54e_post
658    o add two new packages
659      - pp81 (Packanowski and Philander, 1981), Richardson number and
660        stratification dependent mixing
661      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
662      - these scheme operate in a similar manner as KPP (without ghat, of
663        course), however there is only one diffusivity that is used for both
664        temperature and salinity (and passive tracers)ç
665    o add offline package
666    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
667      provided by Stephanie Dutkiewicz
668    o genmake2: add ability to search for C compilers and cleanup test output
669      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
670    
671    checkpoint54d_post
672    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
673    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
674      leading to additional shift by 5 days each year of integration
675       (i.e. leading to considerable offset over the years)
676    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
677    o start with no AB and no initial filtering (staggerTimeStep):
678      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
679    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
680      (external loading & cpl import/export stay in forward_step.F)
681    o update coupling interface to work with new staggerTimeStep
682    o change MDSIO ptracers_pickup.
683    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
684    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
685    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
686    
687    checkpoint54c_post
688    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
689      this affects (truncation error) output.txt of test-exp:
690       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
691    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
692    o change Qnet to always be the net heat flux, (+upward).
693      affects (truncation error) output of natl_box exp.: updated
694    o define the max number of passive tracers in PTRACERS_SIZE.h
695    o start to test mnc routinely in exp0
696    o add sea-ice loading (sIceLoad) as a new forcing field.
697    
698    checkpoint54b_post
699    o add testreport "-j JOBS" option for parallel builds (tested and pretty
700       impressive on Altix and Opteron systems)
701    o diagnostics can now write NetCDF files through the mnc package
702    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
703    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
704    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
705      affects (truncation error) output of lab_sea & natl_box exp.: updated
706    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
707    
708    checkpoint54a_post
709    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
710    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
711    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
712    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
713      + internal_wave (shift in writing cg2d_ini_res)
714    checkpoint54a_pre
715    
716    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
717      - modified verification/lab_sea and natl_box_adjoint accordingly
718    
719    checkpoint54
720    checkpoint53g_post
721    o prepare splitting of thermodynamics: store convect.counter in common block
722    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
723      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
724    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
725    o new parameter "nShapS": allow to treat differently S from T (nShapT)
726    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
727    o restore adjointability
728    
729    checkpoint53f_post
730    o modifications that affect AIM experiment results (update output.txt):
731      - no advection of S at top interface Nr (pkg/generic_advdiff)
732      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
733    o AIM pkg:
734      - include stability function into surf.Flux derivative relative to Tsurf
735      - calculate clear-sky radiation & surface temp. change (for diagnostics)
736    
737    checkpoint53e_post
738    o merged cylindrical coord configuration
739    o added rotating_tank experiment
740    checkpoint53e_pre
741    
742    checkpoint53d_post
743    o faulks upgraded: re-generate output.txt that have changed:
744       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
745    o Added Bryan and Lewis, 1979, vertical diffusivity profile
746    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
747    o added Sadourny discretization of Coriolis
748      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
749      - re-enabled use of omega3 (useAbsVorticity)
750    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
751      vector-invariant equations
752      - note: does *NOT* yet use same variable visc. for no-slip BC's.
753    o recoded the lateral boundary conditions for non-hydrostatic w, this time
754      hopefully without new bugs
755      - still to do: biharmonic friction for non-hydrostatic w
756    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
757    o regenerated output for global_ocean_ebm (using -ieee)
758    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
759      of mom_common/
760      - simple re-arrangement of instructions within computing loop
761    checkpoint53d_pre
762    
763    checkpoint53c_post
764    o new version of coupler for AIM+thSIce and Ocean models
765     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
766     - land: change Evaporation of snow
767     - aim with thSIce: fix bug in snow-precip.
768    o changes to calc_gw.F
769     - bug fix for w^2 term near the bottom boundary
770     - (hopefully) improve the lateral slip boundary condtions for use with
771        partial/looped cells
772      - because the bug fix changes two verification experiments anyway (exp5
773        and plume on slope), change the lateral boundary condition from half slip
774        to the value of no_slip_sides
775    o ebm package wasnt quite up to the parallel task. Fixed that.
776    o Adjoint of EBM package + verification
777      * TLM OK
778      * ADM not sufficient accuracy yet (needs further testing)
779    
780    checkpoint53b_post
781    o Commiting new energy balance model to repository
782      * package is pkg/ebm
783      * verif. is verification/global_ocean_ebm
784      * references are in ebm_driver.F
785    C      * X. Wang, P. Stone and J. Marotzke, 1999:
786    C        Global thermohaline circulation. Part I:
787    C        Sensitivity to atmospheric moisture transport.
788    C        J. Climate 12(1), 71-82
789    C      * X. Wang, P. Stone and J. Marotzke, 1999:
790    C        Global thermohaline circulation. Part II:
791    C        Sensitivity with interactive transport.
792    C        J. Climate 12(1), 83-91
793    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
794    C        Destabilization of the thermohaline circulation
795    C        by atmospheric eddy transports.
796    C        J. Climate 7(12), 1870-1882
797    o Will need long integration testing.
798    checkpoint53b_pre
799    
800    o created pkg/mom_common in preparation for variable viscosity code
801    o renamed and split ini_mnc_io
802    o pkg/land: only liquid water can diffuse or run-off
803    o AIM using land: soil wetness availability account for snow
804    o added printMapIncludesZeros to EEPARMS namelist
805    
806    checkpoint53a_post
807    o restore TAMC compatiility for exf_constants.h
808      (no usage of _d in .h)
809    o Additional storing in KPP in an attempt to fix
810      TAMC problem with adjoint of KPP code.
811      (no success...)
812      Identical code works fine with TAF.
813    o Fixed verification/natl_box_adjoint experiments.
814      Initial conditions for Experiments 4 and 5 are now
815      set to "SEAICE_initialHEFF=0", which is more reasonable,
816      and hence gives results closer to that of Experiment 2.
817      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
818    
819    checkpoint53
820    o stable checkpoint with up to date adjoint
821      TLM tests only run for 1st grdchk at the moment. Its unclear if
822      this is a code problem or a problem with resetting code for g_
823      variables that is being autogenerated wrong.
824      Otherwise:
825       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
826       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
827         are both still in chaos following their security messes.
828    
829    checkpoint52n_post
830    o various build (mostly genmake2) changes including:
831      - ability to build/run more easily within Cygwin and MacOS X
832      - more complicated Makefiles with a stronger dependence on Gnu Make
833    o pkg/seaice modifications
834      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
835        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
836        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
837      - changed proxy for geostrophic velocity and updated
838        verification/lab_sea/results/* accordingly
839      - removed ADI dynamic solver from pkg/seaice
840      - replaced all occurrences of 1/CSTICE or 1/CSUICE
841        they caused a segmentation fault under certain circumstances
842      - removed unused field WATR
843    o bug fix in exf-package:
844      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
845         now reflect that.
846    o small fixes in the cal-package:
847      - set reference date to first of January for the 'model'-calendar
848      - failing of cal_CheckDate in cal_FullDate now actually results in a
849        warning
850    o small modifications in exf-package to increase flexibility:
851      - change climtempfreeze from a constant to a runtime parameter that
852        is specified in data.exf_clim (default = -1.9)
853      - introduce runtime parameter windstressmax (default = 2.0) that is
854        specified in data.exf
855    o fix in pkg/thsice:
856      - update Evap (Tsf changes) to be consistent with Latent heat flux
857      - maintain snow precipitation unchanged (even if Tsf >=0).
858     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
859    
860    checkpoint52m_post
861    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
862      this does not change any of the results, because myIter=0 in swfrac always
863      lead to jwtype=2 (the default anyway), but the call makes little sense
864      as a default
865    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
866    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
867      atmospheric model (AIM) to use it ; add a "slab ocean" component.
868    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
869    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
870    o extending useSingleCpuIO option to work with new exch2 I/O format
871      - old-style, missing-tile I/O is still accessible by defining CPP
872        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
873    o monitor package can write to NetCDF files and/or STDOUT
874    o fix re-definition bug in MNC_GRID_INIT_ALL()
875    o doc/api_reference added
876      - a framework for building an API Reference Manual using all
877        the "protex" comments embedded in the code
878      - see pkg/generic_advdiff, pkg/mnc for examples
879    o MNC:
880      - make myThid the last argument for all subroutines
881      - new default for the grid files: NO halos
882      - add useMNC and other run-time flags
883      - separate per-file-group handling of the unlimited dimension
884      - early initialization of MNC w/ flags read at the eeboot stage
885        and lookup tables set in initialize_fixed
886      - write all MNC output to a freshly-created directory
887    o thermodynamics sea-ice (thsice) is now tested with testreport.
888    o test exp. advect_cs: use the standard cs32 grid ; update output.
889    o Added functionality to grdchk:
890      pick global i,j,k position (or nearest wet) where to perform check.
891    
892    checkpoint52l_post
893    o new land formulation:
894      a) use ground enthalpy as prognostic variable to ensure exact
895         energy conservation.
896      b) account for water temperature and for latent heat of freezing
897         in all processes (rain, run-off, ground storage)
898      c) compute surface and ground temperature implicitly.
899    o aim_v23 modification for new land model:
900      a) Treat separately land / ocean / sea-ice surface fluxes
901         to allow implicit computation of land & sea-ice surface temp.
902      b) add snow precipitation.
903    checkpoint52l_pre
904    
905    o fix problem (when 1 tile is empty) in min/max monitor.
906    o fix bug in timeAve (u,vZetatave in common block)
907    o no restoring terms under ice for pkg/seaice
908    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
909    o bug fix for pkg/seaice pickups
910    o change MNC call locations and add coordinate attributes
911    o mask vorticity at the corner ; affects global_ocean.cs output
912    o fix ini_curvilinear_grid ; test CS experiments with mpi
913    o aim.5l_cs: modify sea-ice fraction input file ; update output
914    o exf: Adding simple range check routine for exf fields after read
915    
916    checkpoint52k_post
917    o removed top-level directory "diags"
918      - we migrated these functions to pkg/timeave a long time ago
919    o fixed bug introduced in pkg/monitor
920    o accuracy ctrlprec = 32 insuffient for gradient checks using
921      averaged fields (I/O via cost_averages)
922      -> use ctrl.h in active_file*.F to control I/O precision.
923    o paramter list of CALL ADTHE_MAIN_LOOP
924    o added initial do_the_model_io to ecco
925    o set all ...Freq to zero after cost_final
926      taveFreq, dumpFreq, pChkptFreq
927    o MAIN and ECCO differentiability restored
928    
929    checkpoint52j_post
930    o fix nchklev in tamc.h for global_ocean...
931    o Bringing flow and store directives up-to-date
932    o Really weird thing!
933      call do_the_model_io from the_main_loop with parameters
934      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
935      TAF places a faulty re-call of initialise_varia
936      after cost_final call which should not be there!
937    checkpoint52j_pre
938    
939    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
940      error messages
941    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
942    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
943      debug output
944    o modfied mdsio_writefield.F to handle non-global files under exch2
945    o update AIM Cubed-Sphere exp (aim.5l_cs):
946      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
947    o update AIM Equatorial Channel exp:
948      use standard aim_v23 pkg and change the SST fields to be more realistic.
949    o globalFile now works with exch2
950    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
951      mon_vort3.F to make exch2 friendly with >1 tile per cube face
952    o limit timeave output for hi-res integrations
953    
954    checkpoint52i_post
955    o removed CPP_EEOPTIONS.h from verification/*/code
956    o updated the tiling for global_ocean_pressure
957    checkpoint52i_pre
958    
959    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
960      the old pkg/aim).
961    
962    checkpoint52h_pre
963    o shortened offending lines in exch2_send_rx?.template
964    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
965    o genmake2: add build & execute test for NetCDF code
966    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
967      old grid files, moved CPP_EEMACROS.h to pkg/exch2
968    o added useSingleCPUIO flag to monitor.F and mon_out.F
969    o added temporary hack for sea-ice dynamics on the cube:
970      metric terms are ignored and it is assumed that
971      there is no sea-ice on cube faces 1, 2, 4, and 5.
972    
973    checkpoint52f_post
974    o added exch2 cube routines to pkg/exch2
975    o modified hs94.cs-32x32x5 to use it
976    o added new grid files to hs94.cs-32x32x5
977    checkpoint52f_pre
978    
979    checkpoint52e_post
980    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
981      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
982    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
983      to work with implicit vertical advection and AB ;
984    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
985    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
986     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
987    checkpoint52e_pre
988    
989    o fix bug in impldiff when Nr=1 or Nr=2.
990    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
991    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
992    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
993      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
994    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
995    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
996    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
997    
998    checkpoint52d_post
999    o re-tiled many expts to allow comparison in multi-processor mode
1000      - updated output accordingly
1001      - changed hs94.128x64x5 to use intial T from file rather than use the
1002        random number generator
1003    o add infrastructure in model routines for fizhi and gridalt packages
1004    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1005    o changes to permit hi-res, cubed-sphere, configuration
1006      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1007      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1008      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1009        of surface winds for the cube
1010      (A verification experiment, based on global_ocean.cs32x15, but with
1011       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1012       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1013       complete with example surface forcing files and matlab scripts to look
1014       at the output and compare it with that of global_ocean.cs32x15.)
1015    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1016       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1017       to conform to the common rule.
1018    o check-in the first version of the coupler + interfaces for multi-components
1019       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1020       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1021       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1022       - ocean and atmos. share the same horizontal grid (no interpolation).
1023       - exchanges between component and coupler is done in forward_step
1024    o new verification experiment, cpl_aim+ocn:
1025       coupled ocean - AIM atmosphere on cs32 grid.
1026    
1027    checkpoint52d_pre
1028    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1029    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1030    
1031    checkpoint52c_post
1032    o Fixing OPTIONS files for use of exf:
1033      - ALLOW_ECCO not needed
1034      - ECCO_CPPOPTIONS.h should not be included from
1035        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1036        as has been the case in the past
1037      - All cal/exf related options are currently set in
1038        single header file. Should remain so until we
1039        agree on a consistent new policy.
1040    o Removed all CPP options for cal package.
1041      cal has no more CPP options.
1042    o modified STOREs in GAD_ADVECTION
1043    o corrected key comp. for passkey
1044    
1045    checkpoint52b_post
1046    o new version: "thsice" of thermodynamic sea-ice pkg:
1047     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1048     - modify fluxes but do not change theta directly;
1049     - light cleaning of bulk_force pkg (still needed with thsice).
1050     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1051       + output_thsice.txt to test thsice & bulk_force pkgs.
1052    o put back grid & coriolis monitor output.
1053    checkpoint52b_pre
1054    
1055    o call "do_the_model_io" at the beginning (=> dump initial state)
1056    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1057    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1058      (need info on NUMBER_OF_PTRACERS)
1059    o missing PTRACERS headers in some routines
1060    o default tamc.h in pkg/autodiff supposed to crash
1061      to ensure proper customization
1062    
1063    checkpoint52a_post
1064    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1065      - moved surfaceTendencyTice from pkg/seaice to main code
1066      - subroutine FREEZE_SURFACE now limits only surface temperature
1067        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1068        => new output.txt for global_ocean.cs32x15 & global_with_exf
1069      - keep the old version of FREEZE for backward compatibility;
1070        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1071      - corresponding modifs for TAF directives
1072    o added surface flux output variables to TIMEAVE_STATVARS
1073    o time-averaged output for pkg/ptracers
1074    o fix problem with ECCO-related divided adjoint
1075      snapshot file was missing some ad-variables,
1076      but no warning issued by TAF
1077    
1078    checkpoint52a_pre
1079    o some bug fixes for #undef REAL4_IS_SLOW
1080    
1081    checkpoint52 = ecco_c52_e35
1082    o after testing adjoints of checkpoint51u_post
1083    
1084    checkpoint51u_post
1085    o this is the post-merge tag of the ecco-branch
1086      (needs another clean checkout and re-testing)
1087    o various natl_box_adjoint configs and results
1088      but no input fields
1089    o obcs adjoint not yet merged!
1090    o adding ECCO global 1x1 and 2x2 degree configs
1091    o updated/extended some store directives for seaice
1092    o pkg/ecco now containes ecco-specific part of cost function
1093    o top level routines the_main_loop, forward_step
1094      supersede those in model/src/
1095      previous input data.cost now in data.ecco
1096      (new namelist ecco_cost_nml)
1097    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1098    
1099    checkpoint51t_post
1100    o this is the pre-merge tag of the ecco-branch
1101    
1102    checkpoint51s_post
1103    o cleanup: removed various obsolete #define-s
1104    o pkg/grdchk
1105      - renamed 'ph-grd 3' to 'grad-res'
1106      - merged from ecco-branch
1107        (remaining bug fixes for obcs gradient checks)
1108      - additional high-precision output for testreport
1109        (grep for 'precision_grdchk_result')
1110    
1111    checkpoint51r_post
1112    o cleaned up or removed CPP_OPTIONS.h files
1113    o updated results for some of the tests to reflect the new
1114      optfiles (-ieee: -O0 instead of -O3)
1115    
1116    checkpoint51q_post
1117    o cd_code:
1118      - moved cd_scheme.F -> cd_code_scheme.F
1119      - separate read_checkpoint from cd_code_ini_vars.F
1120      - separated cd_code part from write_checkpoint
1121      - updated AD_SOURCE, generated .flow
1122      - added CD_CODE_VARS.h to the_main_loop
1123      - Moving cd_code specific store dir.s to pkg/cd_code
1124    o ctrl package totally restructured
1125      - pack/unpack now optional and decoupled from
1126        xx_/adxx_ I/O
1127      - ctrl_pack/unpack cleaned
1128        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1129      - confined inclusion of AD_CONFIG.h to where necessary.
1130    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1131    
1132    checkpoint51p_post
1133    o create initial cd_code package
1134      - WARNING: the initialization of fields within packages
1135        is broken because INI_FIELDS (where READ_CHECKPOINT is
1136        called) is called *before* PACKAGES_INIT_VARIABLES.
1137        This seems to be backwards since
1138        1) its important to initially zero the entire field including
1139           the "halo" region
1140        2) zeroing needs to be done *before* reading pickup info
1141           and the pickup call might or might not happen in any
1142           particular run
1143      - this needs an overhaul for R2
1144    o cleanup verification/*/code/GMREDI_OPTIONS.h
1145    o cleanup testreport
1146    
1147    checkpoint51o_post
1148    o bringing AD-related verif's up to date with genmake2
1149      - carbon/
1150      - global_ocean.90x40x15/
1151      - hs.94.1x64x5/
1152      - (front_relax/ )
1153    o (more) consistent directory structure for AD-related verif.'s
1154    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1155    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1156    o bug fix in find_alpha.F for MDJWF:
1157      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1158        change rho -> rho-rhoConst
1159      - replace call find_rho to find_rhonum
1160    o initialisation of rFlx extended to full array (required by TAF)
1161      and shifted to thermodynamics
1162    o removed PTRACERS.h in ptracers routine
1163    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1164    o Correcting initialisations for fVerU, fVerV.
1165    o helping TAF to recognize dependency on kUp for
1166      fVerU, fVerV
1167    o Replacing delZ by delR in pkg/ctrl/
1168    checkpoint51o_pre
1169    
1170    o undid all of cp51 pending some cleanups and discussion
1171    o added the [#include "AD_CONFIG.h"] statement to all files that need
1172       it for adjoint/tl #defines
1173     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1174     o removed tools/genmake since it no longer works
1175    
1176    checkpoint51n_post
1177    o modifications to make FREEZE flux visible to pkg/kpp
1178      - moved surfaceTendencyTice from pkg/seaice to main code
1179      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1180      - subroutine FREEZE now limits only surface temperature
1181        (this means new output.txt for global_ocean.90x40x15,
1182         global_ocean.cs32x15, and global_with_exf)
1183    o added surface flux output variables to TIMEAVE_STATVARS
1184    
1185    checkpoint51n_pre
1186    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1187    o added [#include "AD_CONFIG.h"] to all files that use the following
1188      defines:
1189      - ALLOW_ADJOINT_RUN
1190      - ALLOW_TANGENTLINEAR_RUN
1191      - ALLOW_ECCO_OPTIMIZATION
1192    
1193    checkpoint51m_post
1194    o incorporating changes to get TAMC/TAF working in genmake2
1195      - added new TAMC/TAF targets to the Makefile
1196      - various cleanups related to package handling
1197      - these changes should have no impact on the forward model
1198    
1199    checkpoint51l_post
1200    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1201     - faster algorithm for cal_addtime.F
1202     - higher precision arithmetic, where needed
1203     - pkg/exf *startdate variables changed from calendar date to
1204       model integration time
1205    
1206    checkpoint51l_pre
1207    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1208    o enable to apply restoring on S & T only in a latitude band.
1209    o update output (external_forcing_surf modif. change truncation errors)
1210       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1211    
1212    checkpoint51k_post
1213    o change default to: useNHMTerms=.FALSE.
1214     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1215       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1216     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1217        exp1, ideal_2D_oce
1218     - change data file of oceanic exp (leave the results unchanged for now)
1219       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1220    o set gravitySign automatically according to the vertical coordinate used
1221      (and change sign: back to "logical" value: +1 when R increases downward)
1222    o added an include barrier to the default CPP_OPTIONS.h and
1223      removed the #include "PACKAGES_CONFIG.h" from it
1224    o fix a bug in mom_fluxform (from chk51j_post)
1225    
1226    checkpoint51j_post
1227    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1228    o adjusted some flow directives (dynamics, thermodynamics)
1229    o added cubed-sphere case to test cost function
1230    o heckpoint_lev?_directives.h now include
1231      pkg-specific directives, whenever those are enabled.
1232    o Moving pkg-specific flow directives to corresponding pkg
1233      Moving pkg-specific differentiation list to corresponding pkg
1234      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1235      ---> conventions are
1236           - pkg_ad.flow
1237           - pkg_ad_diff.list
1238           - pkg_ad_check_lev?_dir.h
1239    
1240    checkpoint51i_post
1241    o merge of the branch-genmake2
1242      - knowingly breaks the older genmake
1243      - automatic generation of all ALLOW_${PKG_NAME} defines
1244      - new testreport supersedes older testscript
1245    o large number of package inclusion and header cleanups
1246    checkpoint51i_pre
1247    
1248    o new output for adjoin of global ocean vector invariant
1249    o fix for checkpoint of thermodynamic seaice and bulk_force
1250    o Steph gchem various cleanups
1251    
1252    checkpoint 51h_pre
1253    o fixed some single quotes
1254    o modify gchem pkg to be more versatile
1255    o modifications to clean up dic pkg
1256    o add pkg/cfc
1257    
1258    checkpoint51g_post
1259    o provide links for ARPACK and ADM*TLM
1260    o start removing verification/vero/
1261    o update AD-related stuff
1262      (in particular some IF-statements in model/src/ routines)
1263    o adding to verification/global_ocean.90x40x15/ adjoint of
1264      vector invariant setup
1265    
1266    checkpoint51f_post
1267    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1268    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1269      of tracer Green's fucntions for ocean inversion project.
1270    
1271    checkpoint51f_pre
1272    o Added on-the-fly spatial interpolation capability
1273        "USE_EXF_INTERPOLATION" to pkg/exf.
1274      - This is a temporary Cartesian-grid hack until
1275        the super-duper ESMF coupler becomes available.
1276      - See verification/global_with_exf/README for usage example.
1277      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1278        flags and modified pkg/seaice accordingly.
1279    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1280        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1281        non-local transport term.
1282    
1283    checkpoint51e_post
1284    o pkg/mom_vecinv:
1285      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1286      - add time-ave diagnostic of vorticity advection.
1287    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1288    o atmospheric geopotential: - include water vapor effect;
1289                                - use p^kappa in p* scaling.
1290    o land pkg: read initial state from files.
1291    o AIM : add stratospheric drag in the upper level
1292    
1293    checkpoint51d_post
1294    o change function ILNBLNK (=> last non-blank char.) to return zero
1295      (instead of the string length) when the string. char is empty
1296    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1297    o modif's to restore TAMC compatibility
1298      - avoid "_d" constructs in PARAMETER declarations
1299      - avoid interrupting lines by comment lines
1300    o Use cluster local disks for purely local I/O
1301      vs. globally visible disks needed for ctrl stuff
1302      (merged from ecco-branch)
1303      - new active_file_loc... and mdsio_..._loc routines
1304      - affected packages: autodiff, ctrl, grdchk, mdsio
1305    
1306    checkpoint51c_post
1307    o introducing integer flag debugLevel
1308      - debLevZero: suppress all output
1309      - debLevA: standard
1310      - debLevB: equivalent to current debugMode=.TRUE.
1311    o introducing pathname variable mdsioLocalDir for mdsio
1312      that can be specified at runtime
1313      (relevant for cluster I/O to local disk)
1314    `
1315    >>>checkpoint51b_post
1316    adjoint of ptracers
1317    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1318    o extended state in checkpoint_lev?, etc.
1319    o alternative ctrl/cost with tr1 or ptracer
1320    o new comlev1_bibj_ptracers
1321    o new ptracers.flow
1322    o made ptracers_forcing same as external_forcing_s
1323    o added verification for adjoint with ptracers
1324      - adm. grdchk fail so far
1325      - tlm. grdchk OK
1326      - checked tapelev/comlev recomputations: OK
1327    <<<checkpoint51b_pre
1328    
1329    checkpoint51a_post
1330    o added code for biogeochemistry package
1331      - new pkgs: dic, gchem
1332      - new subroutine in ptracers
1333    o modify code for biogeo packages
1334      - in model/src and pkg/ptracers
1335    
1336    checkpoint51
1337    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1338      - autodiff, ctrl, exf, grdchk, seaice
1339      kept separate packages
1340      - cost, ecco, obcs
1341    o updating verification/internal_wave, verification/lab_sea
1342      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1343    
1344    checkpoint50i_post
1345    o Preparing next differentiable checkpoint and sync
1346      of MAIN vs. ecco-branch
1347      - 1st step: this one is differentiable
1348      - 2nd step: next(! not this) checkpoint will have updated packages
1349                  from ecco-branch)
1350    
1351    checkpoint50h_post
1352    o new package "land": provide surface BC for AIM.
1353    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1354    o AIM: use true log-P extrapolation for near surface temp (= as in
1355        F.Molteni paper) ; update aim.5l_cs output.
1356    o New variable in PARM03 for more flexible pickups
1357    o somewhat cleaned package initialisation sequence for
1358      ctrl/ cost/ ecco/ in packages_... routines
1359    
1360    checkpoint50g_post
1361    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1362      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1363      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1364        made the default because of faster convergence than ADI
1365    
1366    checkpoint50f_post
1367    o exf totally restructured
1368      - replaced all exf_set_ routines by one generic exf_set_gen.F
1369        and made sure it's still differentiable
1370      - split exf_getffields.F into new exf_bulkformulae.F
1371      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1372      - updated adjoint/makefile and relevant verif. accordingly
1373    
1374    checkpoint50f_pre
1375     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1376          + change Evap over land. (update aim.5l_cs output)
1377     o added missing .cvsignores and made uniform across expts
1378     o changed configuration of tidal_basin_2d expt
1379     o added pkg/debug functions for tracing code in fatal crashes
1380     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1381     o new fn in pkg/monitor to stop model if solution grows too big
1382     o removed lots of single quotes from comments
1383    
1384    checkpoint50e_post
1385    o make KPP work with PTRACERS
1386     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1387       nearly a copy of kpp_transport_s
1388     - there is no analogue to SurfaceTendencyS, so I have to use
1389       gPtr(of the surface layer) instead
1390    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1391    checkpoint50e_pre
1392    
1393    checkpoint50d_post
1394    o change kpp output from multiple-record state files to single-record state
1395      files analogous to write_state.F
1396    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1397      analogous to the cg2d-related output.
1398    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1399      so that writing to internal file fn (with length 512) fails.
1400    checkpoint50d_pre
1401    
1402    checkpoint50c_post
1403    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1404    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1405    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1406    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1407    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1408    
1409    checkpoint50c_pre
1410    Merging from release1_p13:
1411    o bug fix for pkg/seaice dynamic solver
1412    o Added SEAICE_initialHEFF to pkg/seaice
1413    
1414    checkpoint50b_post
1415    o store u*,v* in gU,V instead of in guNm1,gvNm1
1416    o in order to put the momForcing out of the Adams-Bashforth:
1417      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1418      to timestep.F
1419    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1420    o re-generate output for highly sensitive test-exp:
1421       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1422    
1423    checkpoint50b_pre
1424    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1425    o corrected CPP option mismatch in exf_Bulk... functions for case
1426      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1427    
1428    checkpoint50a_post
1429    o Bug fix for merging between c50 and KPP.
1430      ikey was passed from thermodynamics to kpp_calc via
1431      common block rather than being recomputed in kpp_calc,
1432      in contradiction with new key itdkey.
1433      New key ikppkey created, and tamc.h headers updated.
1434    
1435    checkpoint50
1436    - 2nd step of merge with ecco-branch:
1437      merge changes in ecco-branch back into main trunk
1438    - bug fix in find_alpha
1439    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1440    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1441    - merged some sliced AD support routines
1442    
1443    checkpoint49
1444    merged from ecco-branch:
1445    o exf:
1446      - Enable initialisation of forcing fields to constant
1447        (runtime) values.
1448      - in exf_getffields.F
1449        Reduce i-/j-loop to interior domain, discarding overlaps.
1450        That also fixes wrong TAF-key computations for key_1, key_2
1451        with bulf formulae.
1452      - exf_init.F modify #ifdef for exf_init_evap
1453      - exf_getffieldrec.F, ctrl_getrec.F
1454        The following INT-usages are not safe:
1455          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1456          fldcount = int(fldsecs/fldperiod) + 1
1457        and were modified.
1458    o autodiff: checkpoint_lev...
1459      - updated storing for bulk formulae (some arrays were missing)
1460      - added state for seaice package
1461      - synchronized with main branch
1462    o DIVA:
1463      Modif.s in
1464      - the_main_loop.F
1465      - the_model_main.F
1466      and added cost_final_restore.F cost_final_store.F
1467      o With these changes, it is possible to fully separate
1468        the first forward run to compute the cost function (mdthe_main_loop)
1469        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1470        into separate model executions.
1471        This enables better tuning of DIVA to given queue sizes.
1472      o Loss of cost function value in consecutive DIVA runs is
1473        fixed by storing to 'costfinal' file.
1474      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1475        beginning/end of adjoint integration is accounted for.
1476      The current changes apply to TAF-1.4.26.
1477      TAF has one remaining bug, requiring one manual change
1478      (see MITgcm manual).
1479    o cal: synchronized between MAIN and ecco-branch
1480    
1481    checkpoint48i_post
1482    o Changes to restore differentiability of code w.r.t. previous tag
1483      (mostly adding new routines to make list and replacing
1484      pressure by totPhiHyd).
1485    o Updated and merged grdchk package
1486      - has both ADM and TLM checks
1487      - works for single- and multi-proc.
1488      - output cleaned
1489      - worked successfully for parallel DIVA
1490    o genmake:
1491      - Adding -platform=SP4
1492      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1493    o Modif. for DIVA:
1494      ctrl_unpack should not be called in intermediate DIVA interval.
1495      (similar thing would apply for active files such as
1496      tbar, sbar, psbar, which should not be reinitialised;
1497      only relevant for ecco-branch)
1498    
1499    checkpoint48h_post
1500    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1501    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1502    o Added SEAICE_initialHEFF to pkg/seaice
1503    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1504    
1505    checkpoint48g_post
1506    --- EOS:
1507    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1508      store total Potential in totPhyHyd for diagnostics & EOS.
1509    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1510    --- Pressure/geopotential gradient:
1511    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1512    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1513      ( changes results of global_ocean_pressure )
1514    o NLFS + z-coord.: add eta*Rho' contribution.
1515    o accurate phiHyd when using interface-W at the middle between 2 centers
1516     ( changes results of ideal_2D_oce )
1517    o includes r* 2nd term in potential gradient.
1518    
1519    checkpoint48f_post
1520    Merging from release1_p12:
1521    o Modifications for using pkg/exf with pkg/seaice
1522      - improved description of the various forcing configurations
1523      - added basic radiation bulk formulae to pkg/exf
1524      - units/sign fix for evap computation in exf_getffields.F
1525      - updated verification/global_with_exf/results/output.txt
1526    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1527      (SBO) core products, including oceanic mass, center-of-mass,
1528      angular, and bottom pressure (see pkg/sbo/README.sbo).
1529    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1530      to avoid negative values in shallow regions.
1531      - updated verification/natl_box/results/output.txt
1532      - updated verification/lab_sea/results/output.txt
1533    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1534    o Added useSingleCpuIO option (see PARAMS.h).
1535    o Updated useSingleCpuIO option in mdsio_writefield.F to
1536      work with multi-field files, e.g., for single-file pickup.
1537    o pkg/seaice:
1538      - bug fix in growth.F: QNET for no shortwave case
1539      - added HeffFile for specifying initial sea-ice thickness
1540      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1541    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1542      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1543    o pkg/seaice:
1544      - adjoint-friendly modifications
1545      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1546    
1547    checkpoint48e_post
1548    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1549    o dynamics: change definition of computational domain & adapt mom_fluxform
1550      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1551    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1552        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1553        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1554        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1555        inverted_barometer solid-body.cs-32x32x1
1556      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1557    
1558    checkpoint48d_post
1559    o in preparation for r*:
1560     a) use pre-computed gradient of hydrostatic potential:
1561        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1562     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1563        => affects results of glob_oce_pressure (different truncation error)  
1564      update output.txt of ideal_2D_oce & global_ocean_pressure
1565    
1566    checkpoint48d_pre
1567    o in preparation for r*:
1568      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1569      pass the 2 comp. of the grad. as arguments to momentum S/R.
1570      but for the moment, only used if it does not change the results.
1571    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1572    
1573    checkpoint48c_post
1574    Modifications in treatment of initial flux forcing controls
1575    to avoid extra storing of flux fields.
1576    
1577    checkpoint48c_pre
1578    o Added tidal_basin_2d experiment (currently 1D!)
1579    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1580    
1581    checkpoint48b_post
1582    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1583     (modification to pressure gradient not yet implemented)
1584    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1585      (for U & V) that are used for vertical advection of momentum.
1586    
1587    checkpoint48a_post
1588    o In preparation for r*, use temp. array to compute vertical transport
1589       in flux-form momentum pkg. => change results of few test-exp.
1590      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1591                        lab_sea, natl_box & plume_on_slope
1592    
1593    checkpoint48
1594    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1595    
1596    checkpoint47j_post
1597    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1598    o moved adexch from forward_step to addummy_in_stepping
1599    o added exch in ctrl_map_...
1600    o aveFreq.=0. at end of cost_final to avoid overwrite in
1601      reverse checkpointing loop
1602    o Yet more changes in gmredi:
1603      * adgmredi_calc_tensor
1604        avoiding all recomputation of gmredi_slope_limit
1605      * adgmredi_x/y/rtransport
1606        added flag for excessive storing to avoid recomp. of
1607        u/v/rtans, dTdx/y/z
1608        -> this is not really necessary and very memory-consuming
1609      * adgmredi_slope_psi:
1610        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1611      * gmredi_slope_limit
1612        re-activated full calculation of taperfct for case 'ac02'
1613    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1614    
1615    checkpoint47i_post
1616    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1617    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1618      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1619    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1620    o gmredi: fix few bugs.
1621    
1622    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1623    This will be a good checkpoint to plug into the ecco-branch.
1624    o few modif.'s to get latest version adjointed
1625      (mainly kick out code in ini_linear_phisurf)
1626    o modif's to run adjoint with exactConserv
1627    o case GM_BOLUS_ADVEC should be cleaned
1628      S/R gmredi_slope_psi should be cleaned
1629    o verification/carbon now has exactConserv=.TRUE.
1630    
1631    checkpoint47g_post
1632    o time-average AIM output: becomes independent from statvars time-average
1633      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1634    o After TAF bug fix:
1635      Tested adjoint of gmredi package.
1636      Tests were done with checkpoint47 rather than with latest
1637      checkpoint47f_post since the latter is broken for the adjoint
1638      verification/carbon/ contains both ADM and TLM gradient checks.
1639    Here they are, before they get changed/lost/stolen.
1640    Mostly modif.'s to fix numerical sensitivities.
1641    Gradient checks OK for
1642    - GM_taper_scheme:
1643      * clipping
1644      * ac02
1645      * linear
1646      * glw91
1647      * dm95
1648      * ldd97
1649    - GMREDI_OPTIONS:
1650      * GM_VISBECK_VARIABLE_K
1651      * GM_NON_UNITY_DIAGONAL
1652      * GM_EXTRA_DIAGONAL
1653      * GM_BOLUS_ADVEC
1654    in conjunction with data.gmredi parameters to be checked in
1655    in a few minutes under verification/carbon/code/
1656    
1657    checkpoint47f_post
1658    Merging from release1_p10:
1659    o modifications for using pkg/exf with pkg/seaice
1660      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1661        and SEAICE_EXTERNAL_FLUXES
1662      - pkg/exf CPP options EXF_READ_EVAP and
1663        EXF_NO_BULK_COMPUTATIONS
1664      - usage examples are Experiments 8 and 9 in
1665        verification/lab_sea/README
1666      - verification/lab_sea default experiment now uses
1667        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1668    
1669    checkpoint47e_post
1670    o created a tag prior to creating a branch
1671    
1672    checkpoint47d_post
1673    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1674      at the bottom boundary had an erroneous half slip boundary condition
1675    o added bottom drag and no slip boundary condition capabilities to
1676      oceanic pressure coordinates code
1677    o added new verification experiment global_ocean_pressure, this experiment is
1678      also described in the tutorial section of the manual
1679    checkpoint47d_pre
1680    
1681    checkpoint47c_post
1682    o Added a verification experiment for a global cubed-sphere ocean run
1683      -  verification/global_ocean.cubed32x32x30
1684      -  uses pkg/therm_seaice and pkg/bulk_forcing
1685    
1686    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1687    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1688      when using P-coordinate; only implemented for atmospheric config.
1689    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1690      NOTES: requires option NONLIN_FRSURF to be "#define".
1691    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1692    
1693    checkpoint47b_post
1694    Merging from release1_p9:
1695    o pkg/seaice
1696      - removed GOTO's and added taf directives
1697      - double precision constants to reduce the g77 (Linux)
1698        to F77 (SGI) differences reported in release1_p8
1699    o tools/genmake
1700      - added SGI options
1701    o verification/testscript
1702      - updated to that of checkpoint47a_post
1703    o verification/global_ocean.90x40x15/input/eedata
1704      - modified for SGI f77 compatibility
1705    o verification/lab_sea
1706      - added description of sea-ice model
1707      - added missing matlab routines
1708      - added test of thermodynamics parallelization
1709    
1710    checkpoint47a_post
1711    o new pkg: aim_v23
1712     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1713       for now, keep the same surface forcing as before.
1714     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1715     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1716     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1717    o add diagnostic of surface correction term in monitor output
1718    
1719    o bulk_force and therm_seaice
1720    - Two packages:  bulk_force (Bulk forcing)
1721      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1722    - Earlier integration from Stephaine Dutkiewicz
1723      and Patrick Heimbach.
1724    - Two ifdef statements for compile time,
1725       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1726    
1727    checkpoint47
1728    differentiable version of checkpoint46n_post
1729    o bug fix in quasihydrostaticterms
1730    o * "clean" adjoint code (in terms of extensive recomputations)
1731        can now be obtained for all GMREDI options (i.e. for
1732        - GM_VISBECK_VARIABLE_K
1733        - GM_NON_UNITY_DIAGONAL
1734        - GM_EXTRA_DIAGONAL
1735        - GM_BOLUS_ADVEC )
1736      * However, wrong gradient check problem remains unsolved.
1737      * New CPP options have been introduced for different
1738        tapering schemes
1739    o external_fields_load now part of differentiation list
1740    o pressure needs multiple storing;
1741      would be nice to have store_pressure at beginning or
1742      end of forward_step, e.g. by having phiHyd global (5-dim.)
1743      (NB: pressure is needed for certain cases in find_rho,
1744      which is also invoked through convective_adjustment).
1745    o recomputations in find_rho for cases
1746     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1747    o #define ATMOSPHERIC_LOADING should be differentiable
1748    o ini_forcing shifted to begining of initialise_varia
1749    o Incorporating QNVS line search routines into MITgcm
1750      (this is separate code, and therefore not under pkg)
1751      lsopt/, optim/
1752    o Updated verification/carbon/
1753      - #define GM_VISBECK_VARIABLE_K
1754      - GM_taper_scheme    = 'ldd97'    
1755    
1756    checkpoint46n_post
1757    Merging from release1_p8:
1758    o verification/natl_box:
1759      updating new external_fields_load routine
1760    o New package: pkg/seaice
1761      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1762      The sea-ice code is based on Hibler (1979-1980).
1763      Two sea-ice dynamic solvers, ADI and LSR, are included.
1764      In addition to computing prognostic sea-ice variables and diagnosing
1765      the forcing/external data fields that drive the ocean model,
1766      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1767      The implied surface heat flux is then stored in variable
1768      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1769      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1770      non-local transport term.  Because this call precedes model
1771      thermodynamics, temperature under sea-ice may not be "exactly" at
1772      the freezing point by the time theta is dumped or time-averaged.
1773      N.B.: fairly large differences in accuracy occur across
1774            different platforms/compilers; comparison between
1775            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1776            generated output gives:
1777       T           S           U           V
1778      C D M    c        m  s        m  s        m  s        m  s
1779      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1780      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1781      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1782    
1783      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1784    o GAD:
1785      - generated new common blocks to account for call of
1786        same gad routines with differing traceridentities
1787        (needed to modify tracerIdentity indices in GAD.h)
1788      - generated separate common blocks for case useCubedSphereExchange
1789        (Department of Futurology)
1790      - parameter lists to gmredi_?transport: added tracerIdentity
1791      - added new key indices to tamc.h
1792    o external_fields_load:
1793      - added this routine to TAF list
1794      - needed to make some common blocks global and additional storing
1795        along the same lines as exf package (checkpoint_lev?_directives.h)
1796    o exf:
1797      updated external forcing package
1798      - bug fixes carried over from ecco-branch
1799        (missing OBCS_OPTIONS.h in two routines)
1800      - enable easy to use "no forcing".
1801      - added exf I/O for atmospheric loading
1802      - added exf I/O for runoff data
1803      - transfered scaling between exf <-> MITgcm to exf namelist
1804    o Adding new verification experiment global_with_exf.
1805      This verification experiment is almost identical to the
1806      global_ocean.90x40x15 experiment, except that it uses
1807      the exf (and cal) package instead of the
1808      external_fields_load routine (cf README file).
1809    
1810    checkpoint46m_post
1811    o modified testscript to return -- when there are no lines of "%MON" output
1812    o added new flag "quasiHydrostatic" for QH mode
1813      and new routine quasihydrostaticterms()
1814    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1815      New routine: mom_u_coriolis_nh()
1816    o fixed sign of non-hydrostatic metric terms in u and v equations.
1817      Depend on correct sign of gravitySign.
1818    o added work.pc* to .cvsignore in aim directories using ifc
1819    o introduced flag for controllin non-hydrostatic metric terms
1820    o removed gravitySign from PARM04
1821    o switched to g77/ifc from pgf77 in aim experiments
1822    
1823    checkpoint46l_post
1824    o made convective adjustment work with pressure coordinates:
1825     - changed the direction of k-loop in convective_adjustment.F for the
1826       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1827     - adjusted the reference pressure k-index in convective_adjustment.F
1828     - adjusted the convection condition in convect.F (in analogy to
1829       calc_ivdc.F)
1830     - convective_adjustment no longer computes anything on the halos
1831     - removed the warnings about negative salinity from find_rho.F and
1832       find_alpha.F; instead the new routine look_for_neg_salinity, called
1833       at the beginning of find_rho, find_alpha, and find_beta, does a
1834       check of the entire slice, if CPP-option
1835       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1836    checkpoint46l_pre
1837    
1838    checkpoint46k_post
1839    o fixed the verification/global_ocean.90x40x15 experiment:
1840     - new bathymetry (the world according to A., JMC, and M.)
1841     - new initial fields and forcing fields (*.bin files)
1842     - new POLY3.COEFFS (for the next release one should switch to a full
1843       equation of state: JMD95P or MDJWF)
1844     - fixed several errors and redundancies in the data file
1845     - experiment uses looped cells
1846     - added matlab directory with diagnostic scripts for plotting of output
1847    
1848    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1849     - read AIM physics parameters from a file (data.aimphys)
1850     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1851    
1852    checkpoint46j_post
1853    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1854    o move wVel computation at the end of the time step, in S/R integr_continuity
1855    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1856    o update timeave pkg for wVel diagnostic.
1857    checkpoint46j_pre
1858    
1859    checkpoint46i_post
1860    o Clean up AIM package (and keep the results unchanged):
1861      include CPP_OPTION and use IMPLICT NONE in all routines ;
1862      declare all the variables _RL ; use _d 0 for all numerical constants.
1863      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1864    
1865    checkpoint46h_post
1866    o cleaned up the use of rhoNil and rhoConst.
1867      - rhoNil should only appear in the LINEAR equation of state, everywhere
1868        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1869        and the dynamical equations are all divided by rhoConst
1870    o introduced new parameter rhoConstFresh, a reference density of fresh
1871      water, to remove the fresh water flux's dependence on rhoNil. The default
1872      value is 999.8 kg/m^3
1873    o cleanup up external_forcing.F and external_forcing_surf.F
1874      - can now be used by both OCEANIC and OCEANICP
1875    checkpoint46h_pre
1876    
1877     Added code to convert surface volume flux (fresh water) into
1878     a mass flux when using P coordinates in the ocean (OCEANICP).
1879     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1880    
1881    checkpoint46g_post
1882    o Include a new diagnostic variable phiHydLow for the ocean model
1883      - in z-coordinates, it is the bottom pressure anomaly
1884      - in p-coordinates, it is the sea surface elevation
1885      - in both cases, these variable have global drift, reflecting the mass
1886        drift in z-coordinates and the volume drift in p-coordinates
1887      - included time averaging for phiHydLow, be aware of the drift!
1888    o depth-dependent computation of Bo_surf for pressure coordinates
1889      in the ocean (buoyancyRelation='OCEANICP')
1890      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1891        Theta, Salinity, and Pressure in the parameter list. This routine is
1892        presently contained in find_rho.F. This routine does not give the
1893        correct density for 'POLY3', which would be a z-dependent reference
1894        density.
1895    o cleaned up find_rho
1896      - removed obsolete 'eqn' from the parameter list.
1897    o added two new verification experiments: gop and goz
1898      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1899    checkpoint46g_pre
1900    
1901    checkpoint46f_post
1902    o Enable tangent linear (forward mode) gradient checks:
1903      - extended active file handling to g_... files
1904      - added TANGENT_SIMULATION to theSimulationMode
1905      - extended grdchk package accordingly
1906    o added tangent linear setup in verification/carbon/code_ftl
1907    o added adjoint setup in verification/front_relax/code_ad
1908    
1909    checkpoint46e_post
1910    o Added new equation of state -> MDJWF
1911      - EOS of McDougall et al., 2002, JAOT, submitted
1912      - caveat: the equation of state is only valid for a smaller (more
1913        realistic?) range of values than JMD95P/Z and UNESCO
1914      - added masks to the calculation of pressure in store_pressure
1915      - added more check values for density in check_eos (ini_eos.F), some of
1916        the old check values are out of the range of the MDJWF-eos, so don't
1917        expect perfect matches for those
1918    checkpoint46e_pre
1919    
1920  checkpoint46d_post  checkpoint46d_post
1921  o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and  o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1922    'OCEANICP', also initialised field pressure correctly in ini_eos in the    'OCEANICP', also initialised field pressure correctly in ini_eos in the
# Line 26  checkpoint46c_pre Line 1940  checkpoint46c_pre
1940    
1941  checkpoint46b_post  checkpoint46b_post
1942  o Added new equation of state -> JMD95Z and JMD95P  o Added new equation of state -> JMD95Z and JMD95P
1943    - EOS of Jackett and McDougall, 1995, JPO    - EOS of Jackett and McDougall, 1995, JAOT
1944    - moved all EOS parameters into EOS.h    - moved all EOS parameters into EOS.h
1945    - new routines ini_eos.F, store_pressure.F    - new routines ini_eos.F, store_pressure.F
1946  o Added UNESCO EOS, but not recommended because it requires  o Added UNESCO EOS, but not recommended because it requires

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