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revision 1.76 by jmc, Fri Jul 12 14:52:08 2002 UTC revision 1.539 by heimbach, Thu Sep 1 06:08:55 2005 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
8    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
9    o remove MINIMAL_TAVE_OUTPUT option ;
10      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
11    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
12      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
13    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
14    o add time-dependent SST, SSS control
15    o cost terms in ecco/ modularized (new cost_generic.F)
16    o cost_averages routines are modularized (new cost_averagesgeneric.F)
17    o new infrastructure for seaice model vs. obs misfits in seaice/
18      * driver from the_main_loop.F is seaice_cost_driver.F
19      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
20      * gradient check in Exp. 6a of natl_box_adjoint/
21    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
22      (see README file)
23    
24    checkpoint57q_post
25    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
26    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
27      - bug was reported by Jean-Michel and Ian Fenty
28    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
29      update exp. cpl_aim+ocn output.
30    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
31      Needed for high-res. runs with large global files
32      to be able to limit tapelev size
33    o Changed some tests for adjoint:
34      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
35      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
36      * global_ocean.90x40x15/ back to default 3-level checkpointing
37    o Modifications to enable scripted COMMON to MODULE conversion
38      * verification/OpenAD/code/ has necessary scripts and description;
39      * converts, compiles and runs successfully;
40    
41    checkpoint57p_post
42    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
43    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
44      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
45    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
46    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
47      (was already the case for dissipation with mom_vecinv,
48       and also the case for grad.PhiHyd when staggered-timeStep)
49      This will allow to put dissipation out-off the AB time-stepping.
50     Unfortunately, affects truncation error. Update output of exp. that "fails"
51      (cg2d matching number) and leave the others for later: front_relax(10),
52      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
53      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
54    
55    checkpoint57o_post
56    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
57      (2) its ready to be documented during the 20050801 DocFest
58    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
59      for ideal_2D_oce and lab_sea on linux_ia32_g77
60    o set to #undef CTRL_SET_OLD_MAXCVARS_30
61      in global1x1_tot/code_seaice_adj to access indices 32, 33
62      (worth another tag)
63    
64    checkpoint57n_post
65    o adding precip control xx_precip 32
66    o adding swflux control xx_swflux 33
67    o Replacing 10 forcing penalty cost routines by 1 generic.
68    o Implementing partitioning in time-mean and variable adjustment
69      for atmos. state.
70    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
71    o in natl_box_adjoint:
72      * updated exp 1 to 10
73        (but does not have time-mean vs. variable split results yet)
74    o updated global1x1/*_seaice_adj/
75      to incorporate latest changes
76    o enable useSingleCpuIO for mdsio vector routines
77      (applies in particular to tapelev I/O)
78    o removed inefficient K-loop in all active_file*control*.F
79    
80    checkpoint57m_post
81    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
82      and advect_cs (use EXCH-2 and standard cs-32 grid files).
83    o pkg/exch2: filling of face-corner halo regions is optional
84      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
85    
86    checkpoint57l_post
87     tag before updating tutorials (pre-release-2)
88    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
89       for output and interpolation of input fields onto model grid)
90    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
91       Affects results of exp. rotating_tank ; update output.txt.
92    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
93          and taking the square quantity and/or using a fraction-weight field.
94    o fix aim_diagnostics_init.F mate numbers.
95    o add mnc output capability to diagnostics/diagstat and update
96      our cvsignore files for the ACSII output generated
97    
98    checkpoint57k_post
99    o lab_sea now uses diagnostics package and provides a suite of
100      new EXF diagnostics output.
101    
102    checkpoint57j_post
103    o exf
104      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
105        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
106        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
107      * extended diagnostics output
108        - now includes all EXF variables
109        - hs, hl moved to common block
110        - separate S/R for diagnostics, called after ctrl vector is added
111        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
112        - EXFqnet contains true Qnet (i.e. includes qsw)
113      * updated verif. lab_sea, global_with_exf
114      * Rearranging hflux (exf_mapfields -> exf_getforcing)
115        to ensure that diagnostics sees a true EXFqnet
116    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
117    o diagnostics pkg: change pointers so that 1 diagnostic can be used
118      several times with different frequencies.
119    o mnc-ify the thsice package as requested by Daniel Enderton
120      - the monitor--MNC output needs work
121      - many attributes need to be added (most are currently blank)
122    o mnc-ify theaim_v23 package as requested by Daniel Enderton
123      - many attributes need to be added (most are currently blank)
124    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
125    o add Sadourny like discretization to the 4th.O vorticity advection scheme
126    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
127      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
128         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
129    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
130     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
131    
132    checkpoint57i_post
133    o Diagnostics package was changed: diagnostic allocation is now deactivated
134      by setting an empty file name in the namelist (used to be by setting 0 frequency)
135    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
136      add 1rst Order upwind vertical Shear.
137    o add a quick fix for A/B checkpointing in OFFLINE mode
138    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
139      end-run around the C/Fortran linking horror in eesup/src/timers.F
140    o added pkg/runclock: allows user to terminate run based on wall clock
141    o added non-hydrostatic scaling parameter: nh_am2
142    o pkg/my82: futile attempt to make results compiler-independent by adding
143      some "_d 0", etc. no effect.
144    o for mnc output, fill the 'T' coordinate var with myTime and create a
145      separate 'iter' variable for iteration count
146    o pkg/diagnostics:
147      add new capability: output of Global/Regional & per-level statistics ;
148      tested against monitor output (including land & thSIce) on various exp.
149    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
150    
151    checkpoint57h_done
152      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
153      data.diagnostics, data.gchem, data.ptracers) is done.
154    
155    o pkg/diagnostics: prepare for Global/Regional statistics.
156      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
157    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
158      and rename it: DIFFERENT_MULTIPLE
159    
160    checkpoint57h_post
161    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
162    o pkg/diagnostics: change output frequency, now in seconds (instead
163      of Nb of iterations). This requires to change data.diagnostics.
164    checkpoint57h_pre
165    
166    o in mnc, let the user create the output dir if both mnc_outdir_date
167      and mnc_outdir_num are false
168    o add fflags() to pkg/diagnostics which allows one to specify, on a
169      per-file basis, the file precision [default behavior is unchanged]
170    o added diagnostics to pkg/kpp, including computation of mixed layer
171      depth based on a temperature/density criterion
172    o updated verification/natl_box to test the new pkg/kpp diagnostics
173    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
174    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
175    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
176      not mnc -- this mistake was found by JMC and is now corrected
177    
178    checkpoint57g_post
179    o add Adams-Bashforth 3rd Order time stepping:
180      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
181      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
182    checkpoint57g_pre
183    
184    o make lambda[Theta,Salt]ClimRelax spatially varying
185      (default remains spatially uniform constant based on tau)
186    o added new control variables
187      * init. uVel, vVel, etanN
188      * lambda[Theta,Salt]ClimRelax
189    o separate masks used for ctrl_pack/unpack 'from write_grid' output
190      (suggested by G. Forget)
191    
192    checkpoint57f_post
193    o add parameter "baseTime" = model base time = time at iteration zero
194      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
195      account for baseTime shift
196    o move Coriolis arrays from PARAMS.h to GRID.h
197    checkpoint57f_pre
198    
199    o mnc-ifying the seaice package
200    o introduced an alternative length scale calculation for use in the limiting
201      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
202    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
203    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
204      as well as grad(vort3).  Made it compatible with both approximate form
205      for the cubed sphere and full form of these gradients.  Added flag
206      useFullLeith to select between approximate and full form.  
207    o add "d0" in getcon.F to reduce differences between compilers/platforms
208      update output.txt of exp. fizhi-gridalt-hs
209    o change port_rand funtion to allow to set the seed.
210    o fix obscure MNC bug involving conversion between reals and integers
211      - it caused no problems with certain (eg. gcc, ifc) compilers but the
212        new version is now more standards-compliant
213    o adjoint-related modifications
214      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
215      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
216      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
217    
218    checkpoint57e_post
219    o Adding eddy stress controls a la Ferreira et al.
220    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
221    
222    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
223      update output.txt of exp. fizhi-gridalt-hs
224    o add more "Z" dimensions and associated coordinate vars to MNC
225    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
226    o parameter calendarDumps: when set, approximate months (30-31 days) and years
227      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
228      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
229      months and years.  Requires pkg/cal.
230    o diagnostics: add pickup functionality
231      - off by default for backwards compatibility
232      - current version only uses MDSIO -- MNC will be added
233    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
234    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
235    
236    checkpoint57d_post
237    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
238    o modify verification/ideal_2D_oce so that it tests the creation of mnc
239      output from the diagnostics package
240    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
241    o make genmake2 more portable by using ".$FS" instead of ".f" for more
242      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
243    o add coordinate variables to the MNC output from the diagnostics package
244    o change MNC-flags default value: true when useMNC=TRUE
245    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
246      the ability (off by default) to read the grid information using MNC
247    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
248    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
249    o do snap-shot diagnostics at the middle of the time-interval (instead of
250      at the end).
251    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
252      new test for AIM with thSIce + slab-ocean
253    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
254    o move state variable diagnostics to the beginning of the time step ;
255      (note: still needs some work specially for snap-shot diagnostics)
256      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
257    
258    checkpoint57c_post
259    o Change testing option (-ieee) to get closer agreement between g77 & ifort
260    o generate new output.txt files on faulks with g77 & the new -ieee option
261    checkpoint57c_pre
262    
263    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
264      update output.txt of exp. global_ocean.90x40x15
265    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
266      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
267    o add saltFlux(+File) forcing capability with periodicExternalForcing
268    o allow to use pkg diagnostics for GM-Redi & ThSIce output
269    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
270    o improvements for the MNC output from DIAGNOSTICS:
271      - correct handling of the unlimitied dimension
272      - all dims now have associated coordinate variables
273      - variables located at U, V, and Corner ("Z") points are now written
274        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
275        *all* data points are output
276    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
277    o added pkg/seaice/seaice_monitor.F
278    o mdsio_readfield.F can now read files visible only to master MPI process.
279    o pkg/seaice: some test code for ice-modified ocean stress
280    o exf_getffields interpolation defaults to bilinear for all scalar forcing
281      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
282      spurious negative numbers for precipitation and humidity.  Will cause
283      some small numerical differences for integrations using pkg/exf/exf_interp.F.
284    o pkg/ctrl/
285      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
286        May be enabled via doPackDiag
287      *  introduce z-scaling of
288         + gradient (doZscalePack) and
289         + control (doZscaleUnpack)
290    o pkg/mdsio/
291      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
292      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
293    
294    checkpoint57b_post
295    o simplify options in diagnostics_fill arguments (remove weird combinations)
296    o fix MNC coordinate variables so that they now contain per-face index
297      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
298      general, EXCH2 grids are only aligned to a "local" coordinate system
299    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
300    o Implement instantaneous output within pkg diagnostics:
301      setting a negative frequency in data.diagnostics produces
302     "snap-shot" output (as opposed to time-average if freq > 0)
303    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
304      NOTE: change ptracer diagnostics name: use 2 characters to work with
305            more than 9 tracers. Add also diagnostics of advect & diffus flux.
306    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
307      becomes the coordinate variable for the 'T' dimension
308    o add CF-style coordinate variables to MNC
309      - just a first cut:  numbers are meaningless on the cubesphere and
310        missing along the T axis but otherwise it works!
311    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
312    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
313    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
314      this is based directly on what the model compute, so that the content of
315      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
316    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
317    o clean up build options files for SunOS, in particular
318      - remove -traditional from xmakedepend
319      - change -xarch=v9 to -xarch=native for f77
320      - restore use of make (not gmake)
321      - add CC=gcc if using g77
322    o changes per discussion of AM, JMC, & EH3 today:
323      - move redundant "grid" variables out of "state" -- in preparation of
324        creating proper CF-style coordinate variables and in recognition
325        that any/all grid variables can be easily copied (eg. w/NCO) from
326        the grid files into any of the other NetCDF files
327      - *always* output grid variables with MDSIO (this will eventually be
328        changed)
329      - output MNC grid file if useMNC is true
330    o every instance of _END_MASTER() has been found and replaced with
331      _END_MASTER( myThid ) in order to satisfy certain picky Sun
332      preprocessors
333    o re-arrange diagnostics pkg initialisation:
334     - allow each package to extend the available diagnostics list
335     - add some checking and fix small problems (multi-threaded, ...)
336     - new S/R diagnostics_fill (replace fill_diagnostics):
337       look through the short list of active diag. (instead of the long list)
338       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
339    
340    checkpoint57a_post
341    o this set of changes restores TAMC compatibility
342      tested for global_ocean.90x40x15 adjoint on trough
343      (what a pain)
344    
345    checkpoint57a_pre
346    o some modifs in tools/build_options for sunos
347    o call ctrl_pack for ctrl at end for optimcycle=0
348    
349    checkpoint57
350    o add horizontal bi-harmonic viscosity for vertical velocity
351      - new parameter viscA4W (defaults to viscA4)
352      - affects only non-hydrostatic code
353      - to be done: no-slip lateral boundary conditions
354    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
355    o implement Implicit Vertical advection for pTracers
356    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
357      (implemented also for implicit vertical diffusion & advection)
358    o OBCS: extend application of tracer open boundary conditions
359      to a strip beyond the boundary of width Olx/Oly
360    o add call monitor to TAF set of required calls (flow directives)
361      and include in natl_box_adjoint
362    o untangle a few ifdefs related to cost, ctrl, autodiff
363      untangel a few ALLOW_ECCO_OPTIMIZATION
364    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
365      (theta2, salt2 in ecco_cost_weights)
366    
367    checkpoint56c_post
368    o OBCS as control variables
369      - update ctrl_ad_diff.list, obcs_ad_diff.list
370      - remove balance of obcs controls from default
371      - fix index bug nobcs in ctrl_init
372      - fix dummy fields filen in ctrl_pack
373      - add dummy weights for obcs
374    o lsopt: comment out fort.94 output
375    o optim:
376      - remove unnecessary header files
377      - adjusted namelists
378      - add xerbla.F to Makefile
379    o exf:
380      - multiple modifications of exf_check_range
381      - unit change in exf_init_runoff from [m/year] to [m/s]
382    o mdsio:
383      - i/o-vector change debugLevel from debLevA to debLevB
384    
385    checkpoint56b_post
386    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
387      is called from DO_THE_MODEL_IO
388      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
389      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
390      - clean up PTRACERS_WRITE_TIMEAVE a little
391    o add another verification experiment that tests both the cfc-pkg and
392      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
393      reactive tendencies treated inline with regular timestepping
394    o testreport previously did a lousy job of comparing small numbers, so
395      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
396      implemented in the little c-progam tmp_cmpnum.c which is embedded in
397      testreport.
398    o ptracers_monitor: bug fix for MPI
399    
400    checkpoint56a_post
401    o GCHEM: finish reorganizating the package
402      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
403        (introduces another 3D-array for each passive tracer, but only if
404        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
405        gchemTendency is not needed because the timestep is done separately)
406      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
407      - GCHEM is now---more or less cleanly---separate from PTRACERS
408      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
409        so clear to me how that should be done in a general way.
410    o CFC: improve formatting of output in CFC_ATMOS
411    o PTRACERS:
412      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
413        that ALL experiments with ptracers enable can be checked. This makes
414        GCHEM_MONITOR obsolete.
415      - include a runtime parameter PTRACERS_monitorFreq that defaults to
416        monitorFreq
417      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
418    o add PTRACERS (PTR0[1-5]) to testreport output
419    o exf_check_range:
420      * default changed to .TRUE.
421      * will check values for niter0 if debLevA, every timestep if debLevB
422      * STOP in exf_check_range if 'out of range'
423      * range chosen generous to allow for potential extema
424      TBD: a version with stricter range
425           permitted range would be runtime parameters
426    o GMredi:
427      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
428      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
429      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
430    o GCHEM:
431      - move call to GCHEM_FORCING_SEP, so that it is now called before
432        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
433      - introduced a useGCHEM runtime flag and applied it everywhere.
434      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
435        this flag is now only visible within GCHEM-pkg routines.
436      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
437        be replaced by a 3D array that is computed before thermodynamics; for
438        this, the tracer ID iTracer had to be included into the parameter list
439        of ptracers_forcing
440      - set up forward_step to call gchem_forcing, that will replace
441        gchem_forcing_int in ptracers_forcing
442      - cleaning up
443    o small cleaning of exch2: remove files that are also in eesupp/src
444    
445    checkpoint56
446    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
447    o mnc: cleanup "full" files--fixes out-of-memory problem
448    o ECCO-GODAE
449      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
450      * fully merged and updated from SIO code
451        windstress sign change affects
452        - exf_inscal_[u/v]stress
453        - sign of xx_tau[u/v] adjustments
454        - signs in cost_scat
455      * ctrl_get_gen: avoid update of tau[u/v] for first few days
456      * natl_box_adjoint updated and compressed
457      * 2-level checkpoint switch added
458        (tested in EXP. 1 of natl_box_adjoint)
459      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
460    o SVD
461      * first complete, non-hacked version for SVD calculations
462      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
463        performed via direct access files admtlm_vector.it????
464        (via ctrl_[un]pack)
465      * optimcycle is used for ARPACK iteration counter
466        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
467      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
468        and add linear transforms where necessary
469      * controls are initial/final SST, SSS (can be extended; need to check
470        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
471    o mdsio: filename info to both stderr, stdout
472    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
473      from sign change
474    
475    checkpoint55j_post
476    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
477      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
478    o add consistent build directories and .cvsignore files to verification
479    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
480    o make all subroutines 30 or less characters in length for certain older
481      compilers to work (a thorough search only turns up two routines in
482      pkg/ptracers)
483    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
484      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
485    
486    checkpoint55i_post
487    o change arrays for total vertical diffusivity (2.D if explicit,
488      3.D if implicit) ; each ptracer uses its own background value.
489    o added mnc/NetCDF output capability to ocn_compon_interf
490      - added bits to verification/cpl_aim+ocn so that it can run on
491        ITRDA and other clusters without the mpirun "-wd" option
492    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
493      configuration
494    o give MNC the ability to create additional files rather than
495      exceeding a specified file size limit "MNC_MAX_FILESIZE"
496      - the default is just less than 2GB which is a practical limit
497        on many systems
498    o Compute the non-local term using either KPP vertical diffusivity (=default)
499       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
500    
501    checkpoint55h_post
502    o add verification test "vermix"
503    o remove all the *_ioinc flags and replace with the single global
504      outputTypesInclusive flag
505    o allow to set a vertical profile of vertical diffusivity for T & S
506    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
507    o useMNC moved from data.mnc to data.pkg
508    
509    checkpoint55g_post
510    o Renaming carbon AD experiments to comply with testreport conventions
511    o Updating adjoint of Held-Suarez hs94.1x64x5
512    o Fixing directives for non-ECCO forward_step, after ECCO directives
513      have been fixed to avoid recomp. of do_oceanic_phys
514      Works well for global_ocean.90x40x15,
515      but recomp. issue remains for carbon
516    o Updating adjoint output for natl_box_adjoint after
517      pkg/ecco has been modified (see taga c55d_post)
518    
519    checkpoint55f_post
520    o rename to timeave_init_fixed
521    
522    checkpoint55e_post
523    o some delicate re-shuffle of store directives to avoid one
524      extra call of do_oceanic_physics
525      affects ecco_the_main_loop.F, do_oceanic_physics.F
526      checkpoint_lev1_directives.h
527    o NB: this may break global_ocean adjoint temporarily,
528      but it is clear how to fix it. Will do later, need this now.
529    
530    checkpoint55d_post
531    o ECCO specific cost function terms (up-to-date with 1x1 runs)
532    o ecco_cost_weights is modified to 1x1 runs
533    o modifs to allow observations to be read in as
534      single file or yearly files
535    o enable to read exf forcing fields as either
536      single file or yearly files (flag useExfYearlyFields)
537    checkpoint55d_pre
538    
539    o switch between 2-level and 3-level checkpointing
540    o add ability of MNC to write local and "partial" (eg. 2D slices where
541      the full 3D field is never actually stored) arrays to NetCDF files
542      with the correct (that is, the complete multi-dimensional) set of
543      array indicies
544      - used in mom_vecinv() to write the diagFreq output
545      - tested (demonstrated) in verification/aim.5l_cs
546    o further mnc-ification
547      - add verification/lab_sea to the list with mnc setups
548      - fix undefined mnc v-names in cd_code
549      - add kpp to mnc output (both snapshot and timeave)
550    o non-hydrostatic code
551      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
552        in calc_gw.F
553      - defaults to viscAh
554      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
555        friction or Leith) in non-hydrostatic mode, as long as there is
556        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
557    o pkg/cost
558      extend simple cost functions to treat time mean quantities
559      (T,U,V) via cost_accumulate_state from cost_tile
560    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
561        be 2 times larger than the minimum size the advection scheme requires.
562        now get a perfect conservation of salt in advect_cs test-exp (updated)
563    o GGL90 (Gaspar's TKE mixed layer)
564      - add horizontal diffusion of TKE, requires exchanges in
565        do_fields_blocking_exchanges, horizontal diffusivity is zero by
566        default. In OPA there is no horizontal diffusion of TKE but the
567        mixing coefficients are computed from a horizontal average of TKE of
568        6 points or so. I think that diffusion has a little more physical
569        justification.
570      - clean up ggl90_calc in the hope of reducing memory usage (this hope
571        was in vain)
572      - mask tke-variable in ggl90_init
573    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
574    o fix biharmonic diffusion on CS-grid.
575    o more obcs stuff
576      - added obcs_external_fields_load as an alternative to the EXF-pkg option
577        for reading boundary values. This routine is called from
578        obcs_prescribe_read
579      - updated obcs_check
580      - changed sponge layer relaxation parameter units for days to seconds
581      - turned off sponge layer by default
582      - changed argument list of OBCS_CALC to myTime+deltaTclock
583      - fixed about 35 bugs in obcs_external_fields_load
584    
585    checkpoint55c_post
586    o obcs stuff
587      - new runtime flags useOBCSprescribe, useOBCSbalance
588      - re-arranged obcs_calc
589      - moved exf_getobcs to obcs_prescibe_read
590        obcs_prescibe_read is called after ORLANSKI stuff
591        and independent of it (executable can contain all).
592      - updated obcs_check
593      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
594        These may be necessary only if tangential velocities are
595        prescribed at OB, not sure, needs testing.
596    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
597      which simplifies the calls and passes the ifc check-bounds test
598    
599    checkpoint55b_post
600    o add a 2D scalar, Z location, exchange_2 routine.
601    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
602      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
603      affects advect_cs results (for the wrong reason): update output.txt
604    o use a more standard discretization for biharmonic viscosity ;
605     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
606      affects results of dome set-up: update output.txt
607    o fix gad_advection.F (CubedSphere part), back to version 1.23
608    o fix bug in mom_vi_del2uv.F (CubedSphere part).
609    
610    checkpoint55a_post
611    o merged code to
612      * prescribe/read time-dependent open boundaries
613        (works in conjunction with exf, cal)
614      * sponge layer code for open boundaries
615      * each boundary N/S/E/W now has its own CPP option
616        (healthy for the adjoint)
617    
618    checkpoint55
619    o up-to-date adjoint of previous breaks
620      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
621      - global_ocean_ebm: adjoint still needs fix (TLM ok)
622      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
623      - carbon: * remove tr1-related adjoint verification
624                * add ptracer as control variable
625    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
626      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
627    
628    checkpoint54f_post
629    o in verification/carbin/ remove experiment related to
630      ALLOW_PASSIVE_TRACER (array tr1 etc)
631      code_ad/ input_ad/ results_ad
632    
633    o add two new packages
634      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
635        + subject to optimization (memory)
636      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
637        + subject to reordering (many GOTOs in the original code)
638        + so far opps is called for every (i,j) point, and then operates in
639          the vertical; one may want to reorder the scheme in order operate in
640          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
641          fields)
642    o overhaul of IO so that we now have flags for MDSIO and/or MNC
643      - all verification tests compile and run with linux_ia32_g77
644      - defaults are compatible with current input files--nothing
645        should change if you were not previously using MNC
646      - MNC output has been added in numerous places (eg. timeave)
647        but there are still a few writes not yet do-able with MNC
648        (this is in progress)
649      - flags now allow for either/or/both use of MDSIO and MNC and
650        documentation will soon follow
651      - numerous small formatting cleanups for ProTeX
652    o add version info (via BUILD_INFO.h) to MNC and stdout
653    
654    checkpoint54e_post
655    o add two new packages
656      - pp81 (Packanowski and Philander, 1981), Richardson number and
657        stratification dependent mixing
658      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
659      - these scheme operate in a similar manner as KPP (without ghat, of
660        course), however there is only one diffusivity that is used for both
661        temperature and salinity (and passive tracers)ç
662    o add offline package
663    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
664      provided by Stephanie Dutkiewicz
665    o genmake2: add ability to search for C compilers and cleanup test output
666      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
667    
668    checkpoint54d_post
669    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
670    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
671      leading to additional shift by 5 days each year of integration
672       (i.e. leading to considerable offset over the years)
673    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
674    o start with no AB and no initial filtering (staggerTimeStep):
675      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
676    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
677      (external loading & cpl import/export stay in forward_step.F)
678    o update coupling interface to work with new staggerTimeStep
679    o change MDSIO ptracers_pickup.
680    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
681    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
682    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
683    
684    checkpoint54c_post
685    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
686      this affects (truncation error) output.txt of test-exp:
687       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
688    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
689    o change Qnet to always be the net heat flux, (+upward).
690      affects (truncation error) output of natl_box exp.: updated
691    o define the max number of passive tracers in PTRACERS_SIZE.h
692    o start to test mnc routinely in exp0
693    o add sea-ice loading (sIceLoad) as a new forcing field.
694    
695    checkpoint54b_post
696    o add testreport "-j JOBS" option for parallel builds (tested and pretty
697       impressive on Altix and Opteron systems)
698    o diagnostics can now write NetCDF files through the mnc package
699    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
700    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
701    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
702      affects (truncation error) output of lab_sea & natl_box exp.: updated
703    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
704    
705    checkpoint54a_post
706    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
707    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
708    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
709    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
710      + internal_wave (shift in writing cg2d_ini_res)
711    checkpoint54a_pre
712    
713    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
714      - modified verification/lab_sea and natl_box_adjoint accordingly
715    
716    checkpoint54
717    checkpoint53g_post
718    o prepare splitting of thermodynamics: store convect.counter in common block
719    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
720      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
721    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
722    o new parameter "nShapS": allow to treat differently S from T (nShapT)
723    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
724    o restore adjointability
725    
726    checkpoint53f_post
727    o modifications that affect AIM experiment results (update output.txt):
728      - no advection of S at top interface Nr (pkg/generic_advdiff)
729      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
730    o AIM pkg:
731      - include stability function into surf.Flux derivative relative to Tsurf
732      - calculate clear-sky radiation & surface temp. change (for diagnostics)
733    
734    checkpoint53e_post
735    o merged cylindrical coord configuration
736    o added rotating_tank experiment
737    checkpoint53e_pre
738    
739    checkpoint53d_post
740    o faulks upgraded: re-generate output.txt that have changed:
741       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
742    o Added Bryan and Lewis, 1979, vertical diffusivity profile
743    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
744    o added Sadourny discretization of Coriolis
745      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
746      - re-enabled use of omega3 (useAbsVorticity)
747    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
748      vector-invariant equations
749      - note: does *NOT* yet use same variable visc. for no-slip BC's.
750    o recoded the lateral boundary conditions for non-hydrostatic w, this time
751      hopefully without new bugs
752      - still to do: biharmonic friction for non-hydrostatic w
753    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
754    o regenerated output for global_ocean_ebm (using -ieee)
755    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
756      of mom_common/
757      - simple re-arrangement of instructions within computing loop
758    checkpoint53d_pre
759    
760    checkpoint53c_post
761    o new version of coupler for AIM+thSIce and Ocean models
762     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
763     - land: change Evaporation of snow
764     - aim with thSIce: fix bug in snow-precip.
765    o changes to calc_gw.F
766     - bug fix for w^2 term near the bottom boundary
767     - (hopefully) improve the lateral slip boundary condtions for use with
768        partial/looped cells
769      - because the bug fix changes two verification experiments anyway (exp5
770        and plume on slope), change the lateral boundary condition from half slip
771        to the value of no_slip_sides
772    o ebm package wasnt quite up to the parallel task. Fixed that.
773    o Adjoint of EBM package + verification
774      * TLM OK
775      * ADM not sufficient accuracy yet (needs further testing)
776    
777    checkpoint53b_post
778    o Commiting new energy balance model to repository
779      * package is pkg/ebm
780      * verif. is verification/global_ocean_ebm
781      * references are in ebm_driver.F
782    C      * X. Wang, P. Stone and J. Marotzke, 1999:
783    C        Global thermohaline circulation. Part I:
784    C        Sensitivity to atmospheric moisture transport.
785    C        J. Climate 12(1), 71-82
786    C      * X. Wang, P. Stone and J. Marotzke, 1999:
787    C        Global thermohaline circulation. Part II:
788    C        Sensitivity with interactive transport.
789    C        J. Climate 12(1), 83-91
790    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
791    C        Destabilization of the thermohaline circulation
792    C        by atmospheric eddy transports.
793    C        J. Climate 7(12), 1870-1882
794    o Will need long integration testing.
795    checkpoint53b_pre
796    
797    o created pkg/mom_common in preparation for variable viscosity code
798    o renamed and split ini_mnc_io
799    o pkg/land: only liquid water can diffuse or run-off
800    o AIM using land: soil wetness availability account for snow
801    o added printMapIncludesZeros to EEPARMS namelist
802    
803    checkpoint53a_post
804    o restore TAMC compatiility for exf_constants.h
805      (no usage of _d in .h)
806    o Additional storing in KPP in an attempt to fix
807      TAMC problem with adjoint of KPP code.
808      (no success...)
809      Identical code works fine with TAF.
810    o Fixed verification/natl_box_adjoint experiments.
811      Initial conditions for Experiments 4 and 5 are now
812      set to "SEAICE_initialHEFF=0", which is more reasonable,
813      and hence gives results closer to that of Experiment 2.
814      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
815    
816    checkpoint53
817    o stable checkpoint with up to date adjoint
818      TLM tests only run for 1st grdchk at the moment. Its unclear if
819      this is a code problem or a problem with resetting code for g_
820      variables that is being autogenerated wrong.
821      Otherwise:
822       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
823       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
824         are both still in chaos following their security messes.
825    
826    checkpoint52n_post
827    o various build (mostly genmake2) changes including:
828      - ability to build/run more easily within Cygwin and MacOS X
829      - more complicated Makefiles with a stronger dependence on Gnu Make
830    o pkg/seaice modifications
831      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
832        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
833        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
834      - changed proxy for geostrophic velocity and updated
835        verification/lab_sea/results/* accordingly
836      - removed ADI dynamic solver from pkg/seaice
837      - replaced all occurrences of 1/CSTICE or 1/CSUICE
838        they caused a segmentation fault under certain circumstances
839      - removed unused field WATR
840    o bug fix in exf-package:
841      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
842         now reflect that.
843    o small fixes in the cal-package:
844      - set reference date to first of January for the 'model'-calendar
845      - failing of cal_CheckDate in cal_FullDate now actually results in a
846        warning
847    o small modifications in exf-package to increase flexibility:
848      - change climtempfreeze from a constant to a runtime parameter that
849        is specified in data.exf_clim (default = -1.9)
850      - introduce runtime parameter windstressmax (default = 2.0) that is
851        specified in data.exf
852    o fix in pkg/thsice:
853      - update Evap (Tsf changes) to be consistent with Latent heat flux
854      - maintain snow precipitation unchanged (even if Tsf >=0).
855     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
856    
857    checkpoint52m_post
858    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
859      this does not change any of the results, because myIter=0 in swfrac always
860      lead to jwtype=2 (the default anyway), but the call makes little sense
861      as a default
862    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
863    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
864      atmospheric model (AIM) to use it ; add a "slab ocean" component.
865    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
866    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
867    o extending useSingleCpuIO option to work with new exch2 I/O format
868      - old-style, missing-tile I/O is still accessible by defining CPP
869        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
870    o monitor package can write to NetCDF files and/or STDOUT
871    o fix re-definition bug in MNC_GRID_INIT_ALL()
872    o doc/api_reference added
873      - a framework for building an API Reference Manual using all
874        the "protex" comments embedded in the code
875      - see pkg/generic_advdiff, pkg/mnc for examples
876    o MNC:
877      - make myThid the last argument for all subroutines
878      - new default for the grid files: NO halos
879      - add useMNC and other run-time flags
880      - separate per-file-group handling of the unlimited dimension
881      - early initialization of MNC w/ flags read at the eeboot stage
882        and lookup tables set in initialize_fixed
883      - write all MNC output to a freshly-created directory
884    o thermodynamics sea-ice (thsice) is now tested with testreport.
885    o test exp. advect_cs: use the standard cs32 grid ; update output.
886    o Added functionality to grdchk:
887      pick global i,j,k position (or nearest wet) where to perform check.
888    
889    checkpoint52l_post
890    o new land formulation:
891      a) use ground enthalpy as prognostic variable to ensure exact
892         energy conservation.
893      b) account for water temperature and for latent heat of freezing
894         in all processes (rain, run-off, ground storage)
895      c) compute surface and ground temperature implicitly.
896    o aim_v23 modification for new land model:
897      a) Treat separately land / ocean / sea-ice surface fluxes
898         to allow implicit computation of land & sea-ice surface temp.
899      b) add snow precipitation.
900    checkpoint52l_pre
901    
902    o fix problem (when 1 tile is empty) in min/max monitor.
903    o fix bug in timeAve (u,vZetatave in common block)
904    o no restoring terms under ice for pkg/seaice
905    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
906    o bug fix for pkg/seaice pickups
907    o change MNC call locations and add coordinate attributes
908    o mask vorticity at the corner ; affects global_ocean.cs output
909    o fix ini_curvilinear_grid ; test CS experiments with mpi
910    o aim.5l_cs: modify sea-ice fraction input file ; update output
911    o exf: Adding simple range check routine for exf fields after read
912    
913    checkpoint52k_post
914    o removed top-level directory "diags"
915      - we migrated these functions to pkg/timeave a long time ago
916    o fixed bug introduced in pkg/monitor
917    o accuracy ctrlprec = 32 insuffient for gradient checks using
918      averaged fields (I/O via cost_averages)
919      -> use ctrl.h in active_file*.F to control I/O precision.
920    o paramter list of CALL ADTHE_MAIN_LOOP
921    o added initial do_the_model_io to ecco
922    o set all ...Freq to zero after cost_final
923      taveFreq, dumpFreq, pChkptFreq
924    o MAIN and ECCO differentiability restored
925    
926    checkpoint52j_post
927    o fix nchklev in tamc.h for global_ocean...
928    o Bringing flow and store directives up-to-date
929    o Really weird thing!
930      call do_the_model_io from the_main_loop with parameters
931      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
932      TAF places a faulty re-call of initialise_varia
933      after cost_final call which should not be there!
934    checkpoint52j_pre
935    
936    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
937      error messages
938    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
939    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
940      debug output
941    o modfied mdsio_writefield.F to handle non-global files under exch2
942    o update AIM Cubed-Sphere exp (aim.5l_cs):
943      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
944    o update AIM Equatorial Channel exp:
945      use standard aim_v23 pkg and change the SST fields to be more realistic.
946    o globalFile now works with exch2
947    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
948      mon_vort3.F to make exch2 friendly with >1 tile per cube face
949    o limit timeave output for hi-res integrations
950    
951    checkpoint52i_post
952    o removed CPP_EEOPTIONS.h from verification/*/code
953    o updated the tiling for global_ocean_pressure
954    checkpoint52i_pre
955    
956    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
957      the old pkg/aim).
958    
959    checkpoint52h_pre
960    o shortened offending lines in exch2_send_rx?.template
961    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
962    o genmake2: add build & execute test for NetCDF code
963    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
964      old grid files, moved CPP_EEMACROS.h to pkg/exch2
965    o added useSingleCPUIO flag to monitor.F and mon_out.F
966    o added temporary hack for sea-ice dynamics on the cube:
967      metric terms are ignored and it is assumed that
968      there is no sea-ice on cube faces 1, 2, 4, and 5.
969    
970    checkpoint52f_post
971    o added exch2 cube routines to pkg/exch2
972    o modified hs94.cs-32x32x5 to use it
973    o added new grid files to hs94.cs-32x32x5
974    checkpoint52f_pre
975    
976    checkpoint52e_post
977    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
978      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
979    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
980      to work with implicit vertical advection and AB ;
981    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
982    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
983     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
984    checkpoint52e_pre
985    
986    o fix bug in impldiff when Nr=1 or Nr=2.
987    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
988    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
989    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
990      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
991    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
992    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
993    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
994    
995    checkpoint52d_post
996    o re-tiled many expts to allow comparison in multi-processor mode
997      - updated output accordingly
998      - changed hs94.128x64x5 to use intial T from file rather than use the
999        random number generator
1000    o add infrastructure in model routines for fizhi and gridalt packages
1001    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1002    o changes to permit hi-res, cubed-sphere, configuration
1003      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1004      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1005      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1006        of surface winds for the cube
1007      (A verification experiment, based on global_ocean.cs32x15, but with
1008       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1009       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1010       complete with example surface forcing files and matlab scripts to look
1011       at the output and compare it with that of global_ocean.cs32x15.)
1012    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1013       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1014       to conform to the common rule.
1015    o check-in the first version of the coupler + interfaces for multi-components
1016       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1017       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1018       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1019       - ocean and atmos. share the same horizontal grid (no interpolation).
1020       - exchanges between component and coupler is done in forward_step
1021    o new verification experiment, cpl_aim+ocn:
1022       coupled ocean - AIM atmosphere on cs32 grid.
1023    
1024    checkpoint52d_pre
1025    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1026    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1027    
1028    checkpoint52c_post
1029    o Fixing OPTIONS files for use of exf:
1030      - ALLOW_ECCO not needed
1031      - ECCO_CPPOPTIONS.h should not be included from
1032        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1033        as has been the case in the past
1034      - All cal/exf related options are currently set in
1035        single header file. Should remain so until we
1036        agree on a consistent new policy.
1037    o Removed all CPP options for cal package.
1038      cal has no more CPP options.
1039    o modified STOREs in GAD_ADVECTION
1040    o corrected key comp. for passkey
1041    
1042    checkpoint52b_post
1043    o new version: "thsice" of thermodynamic sea-ice pkg:
1044     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1045     - modify fluxes but do not change theta directly;
1046     - light cleaning of bulk_force pkg (still needed with thsice).
1047     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1048       + output_thsice.txt to test thsice & bulk_force pkgs.
1049    o put back grid & coriolis monitor output.
1050    checkpoint52b_pre
1051    
1052    o call "do_the_model_io" at the beginning (=> dump initial state)
1053    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1054    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1055      (need info on NUMBER_OF_PTRACERS)
1056    o missing PTRACERS headers in some routines
1057    o default tamc.h in pkg/autodiff supposed to crash
1058      to ensure proper customization
1059    
1060    checkpoint52a_post
1061    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1062      - moved surfaceTendencyTice from pkg/seaice to main code
1063      - subroutine FREEZE_SURFACE now limits only surface temperature
1064        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1065        => new output.txt for global_ocean.cs32x15 & global_with_exf
1066      - keep the old version of FREEZE for backward compatibility;
1067        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1068      - corresponding modifs for TAF directives
1069    o added surface flux output variables to TIMEAVE_STATVARS
1070    o time-averaged output for pkg/ptracers
1071    o fix problem with ECCO-related divided adjoint
1072      snapshot file was missing some ad-variables,
1073      but no warning issued by TAF
1074    
1075    checkpoint52a_pre
1076    o some bug fixes for #undef REAL4_IS_SLOW
1077    
1078    checkpoint52 = ecco_c52_e35
1079    o after testing adjoints of checkpoint51u_post
1080    
1081    checkpoint51u_post
1082    o this is the post-merge tag of the ecco-branch
1083      (needs another clean checkout and re-testing)
1084    o various natl_box_adjoint configs and results
1085      but no input fields
1086    o obcs adjoint not yet merged!
1087    o adding ECCO global 1x1 and 2x2 degree configs
1088    o updated/extended some store directives for seaice
1089    o pkg/ecco now containes ecco-specific part of cost function
1090    o top level routines the_main_loop, forward_step
1091      supersede those in model/src/
1092      previous input data.cost now in data.ecco
1093      (new namelist ecco_cost_nml)
1094    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1095    
1096    checkpoint51t_post
1097    o this is the pre-merge tag of the ecco-branch
1098    
1099    checkpoint51s_post
1100    o cleanup: removed various obsolete #define-s
1101    o pkg/grdchk
1102      - renamed 'ph-grd 3' to 'grad-res'
1103      - merged from ecco-branch
1104        (remaining bug fixes for obcs gradient checks)
1105      - additional high-precision output for testreport
1106        (grep for 'precision_grdchk_result')
1107    
1108    checkpoint51r_post
1109    o cleaned up or removed CPP_OPTIONS.h files
1110    o updated results for some of the tests to reflect the new
1111      optfiles (-ieee: -O0 instead of -O3)
1112    
1113    checkpoint51q_post
1114    o cd_code:
1115      - moved cd_scheme.F -> cd_code_scheme.F
1116      - separate read_checkpoint from cd_code_ini_vars.F
1117      - separated cd_code part from write_checkpoint
1118      - updated AD_SOURCE, generated .flow
1119      - added CD_CODE_VARS.h to the_main_loop
1120      - Moving cd_code specific store dir.s to pkg/cd_code
1121    o ctrl package totally restructured
1122      - pack/unpack now optional and decoupled from
1123        xx_/adxx_ I/O
1124      - ctrl_pack/unpack cleaned
1125        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1126      - confined inclusion of AD_CONFIG.h to where necessary.
1127    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1128    
1129    checkpoint51p_post
1130    o create initial cd_code package
1131      - WARNING: the initialization of fields within packages
1132        is broken because INI_FIELDS (where READ_CHECKPOINT is
1133        called) is called *before* PACKAGES_INIT_VARIABLES.
1134        This seems to be backwards since
1135        1) its important to initially zero the entire field including
1136           the "halo" region
1137        2) zeroing needs to be done *before* reading pickup info
1138           and the pickup call might or might not happen in any
1139           particular run
1140      - this needs an overhaul for R2
1141    o cleanup verification/*/code/GMREDI_OPTIONS.h
1142    o cleanup testreport
1143    
1144    checkpoint51o_post
1145    o bringing AD-related verif's up to date with genmake2
1146      - carbon/
1147      - global_ocean.90x40x15/
1148      - hs.94.1x64x5/
1149      - (front_relax/ )
1150    o (more) consistent directory structure for AD-related verif.'s
1151    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1152    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1153    o bug fix in find_alpha.F for MDJWF:
1154      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1155        change rho -> rho-rhoConst
1156      - replace call find_rho to find_rhonum
1157    o initialisation of rFlx extended to full array (required by TAF)
1158      and shifted to thermodynamics
1159    o removed PTRACERS.h in ptracers routine
1160    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1161    o Correcting initialisations for fVerU, fVerV.
1162    o helping TAF to recognize dependency on kUp for
1163      fVerU, fVerV
1164    o Replacing delZ by delR in pkg/ctrl/
1165    checkpoint51o_pre
1166    
1167    o undid all of cp51 pending some cleanups and discussion
1168    o added the [#include "AD_CONFIG.h"] statement to all files that need
1169       it for adjoint/tl #defines
1170     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1171     o removed tools/genmake since it no longer works
1172    
1173    checkpoint51n_post
1174    o modifications to make FREEZE flux visible to pkg/kpp
1175      - moved surfaceTendencyTice from pkg/seaice to main code
1176      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1177      - subroutine FREEZE now limits only surface temperature
1178        (this means new output.txt for global_ocean.90x40x15,
1179         global_ocean.cs32x15, and global_with_exf)
1180    o added surface flux output variables to TIMEAVE_STATVARS
1181    
1182    checkpoint51n_pre
1183    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1184    o added [#include "AD_CONFIG.h"] to all files that use the following
1185      defines:
1186      - ALLOW_ADJOINT_RUN
1187      - ALLOW_TANGENTLINEAR_RUN
1188      - ALLOW_ECCO_OPTIMIZATION
1189    
1190    checkpoint51m_post
1191    o incorporating changes to get TAMC/TAF working in genmake2
1192      - added new TAMC/TAF targets to the Makefile
1193      - various cleanups related to package handling
1194      - these changes should have no impact on the forward model
1195    
1196    checkpoint51l_post
1197    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1198     - faster algorithm for cal_addtime.F
1199     - higher precision arithmetic, where needed
1200     - pkg/exf *startdate variables changed from calendar date to
1201       model integration time
1202    
1203    checkpoint51l_pre
1204    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1205    o enable to apply restoring on S & T only in a latitude band.
1206    o update output (external_forcing_surf modif. change truncation errors)
1207       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1208    
1209    checkpoint51k_post
1210    o change default to: useNHMTerms=.FALSE.
1211     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1212       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1213     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1214        exp1, ideal_2D_oce
1215     - change data file of oceanic exp (leave the results unchanged for now)
1216       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1217    o set gravitySign automatically according to the vertical coordinate used
1218      (and change sign: back to "logical" value: +1 when R increases downward)
1219    o added an include barrier to the default CPP_OPTIONS.h and
1220      removed the #include "PACKAGES_CONFIG.h" from it
1221    o fix a bug in mom_fluxform (from chk51j_post)
1222    
1223    checkpoint51j_post
1224    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1225    o adjusted some flow directives (dynamics, thermodynamics)
1226    o added cubed-sphere case to test cost function
1227    o heckpoint_lev?_directives.h now include
1228      pkg-specific directives, whenever those are enabled.
1229    o Moving pkg-specific flow directives to corresponding pkg
1230      Moving pkg-specific differentiation list to corresponding pkg
1231      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1232      ---> conventions are
1233           - pkg_ad.flow
1234           - pkg_ad_diff.list
1235           - pkg_ad_check_lev?_dir.h
1236    
1237    checkpoint51i_post
1238    o merge of the branch-genmake2
1239      - knowingly breaks the older genmake
1240      - automatic generation of all ALLOW_${PKG_NAME} defines
1241      - new testreport supersedes older testscript
1242    o large number of package inclusion and header cleanups
1243    checkpoint51i_pre
1244    
1245    o new output for adjoin of global ocean vector invariant
1246    o fix for checkpoint of thermodynamic seaice and bulk_force
1247    o Steph gchem various cleanups
1248    
1249    checkpoint 51h_pre
1250    o fixed some single quotes
1251    o modify gchem pkg to be more versatile
1252    o modifications to clean up dic pkg
1253    o add pkg/cfc
1254    
1255    checkpoint51g_post
1256    o provide links for ARPACK and ADM*TLM
1257    o start removing verification/vero/
1258    o update AD-related stuff
1259      (in particular some IF-statements in model/src/ routines)
1260    o adding to verification/global_ocean.90x40x15/ adjoint of
1261      vector invariant setup
1262    
1263    checkpoint51f_post
1264    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1265    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1266      of tracer Green's fucntions for ocean inversion project.
1267    
1268    checkpoint51f_pre
1269    o Added on-the-fly spatial interpolation capability
1270        "USE_EXF_INTERPOLATION" to pkg/exf.
1271      - This is a temporary Cartesian-grid hack until
1272        the super-duper ESMF coupler becomes available.
1273      - See verification/global_with_exf/README for usage example.
1274      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1275        flags and modified pkg/seaice accordingly.
1276    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1277        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1278        non-local transport term.
1279    
1280    checkpoint51e_post
1281    o pkg/mom_vecinv:
1282      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1283      - add time-ave diagnostic of vorticity advection.
1284    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1285    o atmospheric geopotential: - include water vapor effect;
1286                                - use p^kappa in p* scaling.
1287    o land pkg: read initial state from files.
1288    o AIM : add stratospheric drag in the upper level
1289    
1290    checkpoint51d_post
1291    o change function ILNBLNK (=> last non-blank char.) to return zero
1292      (instead of the string length) when the string. char is empty
1293    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1294    o modif's to restore TAMC compatibility
1295      - avoid "_d" constructs in PARAMETER declarations
1296      - avoid interrupting lines by comment lines
1297    o Use cluster local disks for purely local I/O
1298      vs. globally visible disks needed for ctrl stuff
1299      (merged from ecco-branch)
1300      - new active_file_loc... and mdsio_..._loc routines
1301      - affected packages: autodiff, ctrl, grdchk, mdsio
1302    
1303    checkpoint51c_post
1304    o introducing integer flag debugLevel
1305      - debLevZero: suppress all output
1306      - debLevA: standard
1307      - debLevB: equivalent to current debugMode=.TRUE.
1308    o introducing pathname variable mdsioLocalDir for mdsio
1309      that can be specified at runtime
1310      (relevant for cluster I/O to local disk)
1311    `
1312    >>>checkpoint51b_post
1313    adjoint of ptracers
1314    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1315    o extended state in checkpoint_lev?, etc.
1316    o alternative ctrl/cost with tr1 or ptracer
1317    o new comlev1_bibj_ptracers
1318    o new ptracers.flow
1319    o made ptracers_forcing same as external_forcing_s
1320    o added verification for adjoint with ptracers
1321      - adm. grdchk fail so far
1322      - tlm. grdchk OK
1323      - checked tapelev/comlev recomputations: OK
1324    <<<checkpoint51b_pre
1325    
1326    checkpoint51a_post
1327    o added code for biogeochemistry package
1328      - new pkgs: dic, gchem
1329      - new subroutine in ptracers
1330    o modify code for biogeo packages
1331      - in model/src and pkg/ptracers
1332    
1333    checkpoint51
1334    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1335      - autodiff, ctrl, exf, grdchk, seaice
1336      kept separate packages
1337      - cost, ecco, obcs
1338    o updating verification/internal_wave, verification/lab_sea
1339      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1340    
1341    checkpoint50i_post
1342    o Preparing next differentiable checkpoint and sync
1343      of MAIN vs. ecco-branch
1344      - 1st step: this one is differentiable
1345      - 2nd step: next(! not this) checkpoint will have updated packages
1346                  from ecco-branch)
1347    
1348    checkpoint50h_post
1349    o new package "land": provide surface BC for AIM.
1350    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1351    o AIM: use true log-P extrapolation for near surface temp (= as in
1352        F.Molteni paper) ; update aim.5l_cs output.
1353    o New variable in PARM03 for more flexible pickups
1354    o somewhat cleaned package initialisation sequence for
1355      ctrl/ cost/ ecco/ in packages_... routines
1356    
1357    checkpoint50g_post
1358    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1359      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1360      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1361        made the default because of faster convergence than ADI
1362    
1363    checkpoint50f_post
1364    o exf totally restructured
1365      - replaced all exf_set_ routines by one generic exf_set_gen.F
1366        and made sure it's still differentiable
1367      - split exf_getffields.F into new exf_bulkformulae.F
1368      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1369      - updated adjoint/makefile and relevant verif. accordingly
1370    
1371    checkpoint50f_pre
1372     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1373          + change Evap over land. (update aim.5l_cs output)
1374     o added missing .cvsignores and made uniform across expts
1375     o changed configuration of tidal_basin_2d expt
1376     o added pkg/debug functions for tracing code in fatal crashes
1377     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1378     o new fn in pkg/monitor to stop model if solution grows too big
1379     o removed lots of single quotes from comments
1380    
1381    checkpoint50e_post
1382    o make KPP work with PTRACERS
1383     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1384       nearly a copy of kpp_transport_s
1385     - there is no analogue to SurfaceTendencyS, so I have to use
1386       gPtr(of the surface layer) instead
1387    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1388    checkpoint50e_pre
1389    
1390    checkpoint50d_post
1391    o change kpp output from multiple-record state files to single-record state
1392      files analogous to write_state.F
1393    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1394      analogous to the cg2d-related output.
1395    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1396      so that writing to internal file fn (with length 512) fails.
1397    checkpoint50d_pre
1398    
1399    checkpoint50c_post
1400    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1401    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1402    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1403    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1404    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1405    
1406    checkpoint50c_pre
1407    Merging from release1_p13:
1408    o bug fix for pkg/seaice dynamic solver
1409    o Added SEAICE_initialHEFF to pkg/seaice
1410    
1411    checkpoint50b_post
1412    o store u*,v* in gU,V instead of in guNm1,gvNm1
1413    o in order to put the momForcing out of the Adams-Bashforth:
1414      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1415      to timestep.F
1416    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1417    o re-generate output for highly sensitive test-exp:
1418       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1419    
1420    checkpoint50b_pre
1421    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1422    o corrected CPP option mismatch in exf_Bulk... functions for case
1423      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1424    
1425    checkpoint50a_post
1426    o Bug fix for merging between c50 and KPP.
1427      ikey was passed from thermodynamics to kpp_calc via
1428      common block rather than being recomputed in kpp_calc,
1429      in contradiction with new key itdkey.
1430      New key ikppkey created, and tamc.h headers updated.
1431    
1432    checkpoint50
1433    - 2nd step of merge with ecco-branch:
1434      merge changes in ecco-branch back into main trunk
1435    - bug fix in find_alpha
1436    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1437    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1438    - merged some sliced AD support routines
1439    
1440    checkpoint49
1441    merged from ecco-branch:
1442    o exf:
1443      - Enable initialisation of forcing fields to constant
1444        (runtime) values.
1445      - in exf_getffields.F
1446        Reduce i-/j-loop to interior domain, discarding overlaps.
1447        That also fixes wrong TAF-key computations for key_1, key_2
1448        with bulf formulae.
1449      - exf_init.F modify #ifdef for exf_init_evap
1450      - exf_getffieldrec.F, ctrl_getrec.F
1451        The following INT-usages are not safe:
1452          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1453          fldcount = int(fldsecs/fldperiod) + 1
1454        and were modified.
1455    o autodiff: checkpoint_lev...
1456      - updated storing for bulk formulae (some arrays were missing)
1457      - added state for seaice package
1458      - synchronized with main branch
1459    o DIVA:
1460      Modif.s in
1461      - the_main_loop.F
1462      - the_model_main.F
1463      and added cost_final_restore.F cost_final_store.F
1464      o With these changes, it is possible to fully separate
1465        the first forward run to compute the cost function (mdthe_main_loop)
1466        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1467        into separate model executions.
1468        This enables better tuning of DIVA to given queue sizes.
1469      o Loss of cost function value in consecutive DIVA runs is
1470        fixed by storing to 'costfinal' file.
1471      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1472        beginning/end of adjoint integration is accounted for.
1473      The current changes apply to TAF-1.4.26.
1474      TAF has one remaining bug, requiring one manual change
1475      (see MITgcm manual).
1476    o cal: synchronized between MAIN and ecco-branch
1477    
1478    checkpoint48i_post
1479    o Changes to restore differentiability of code w.r.t. previous tag
1480      (mostly adding new routines to make list and replacing
1481      pressure by totPhiHyd).
1482    o Updated and merged grdchk package
1483      - has both ADM and TLM checks
1484      - works for single- and multi-proc.
1485      - output cleaned
1486      - worked successfully for parallel DIVA
1487    o genmake:
1488      - Adding -platform=SP4
1489      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1490    o Modif. for DIVA:
1491      ctrl_unpack should not be called in intermediate DIVA interval.
1492      (similar thing would apply for active files such as
1493      tbar, sbar, psbar, which should not be reinitialised;
1494      only relevant for ecco-branch)
1495    
1496    checkpoint48h_post
1497    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1498    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1499    o Added SEAICE_initialHEFF to pkg/seaice
1500    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1501    
1502    checkpoint48g_post
1503    --- EOS:
1504    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1505      store total Potential in totPhyHyd for diagnostics & EOS.
1506    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1507    --- Pressure/geopotential gradient:
1508    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1509    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1510      ( changes results of global_ocean_pressure )
1511    o NLFS + z-coord.: add eta*Rho' contribution.
1512    o accurate phiHyd when using interface-W at the middle between 2 centers
1513     ( changes results of ideal_2D_oce )
1514    o includes r* 2nd term in potential gradient.
1515    
1516    checkpoint48f_post
1517    Merging from release1_p12:
1518    o Modifications for using pkg/exf with pkg/seaice
1519      - improved description of the various forcing configurations
1520      - added basic radiation bulk formulae to pkg/exf
1521      - units/sign fix for evap computation in exf_getffields.F
1522      - updated verification/global_with_exf/results/output.txt
1523    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1524      (SBO) core products, including oceanic mass, center-of-mass,
1525      angular, and bottom pressure (see pkg/sbo/README.sbo).
1526    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1527      to avoid negative values in shallow regions.
1528      - updated verification/natl_box/results/output.txt
1529      - updated verification/lab_sea/results/output.txt
1530    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1531    o Added useSingleCpuIO option (see PARAMS.h).
1532    o Updated useSingleCpuIO option in mdsio_writefield.F to
1533      work with multi-field files, e.g., for single-file pickup.
1534    o pkg/seaice:
1535      - bug fix in growth.F: QNET for no shortwave case
1536      - added HeffFile for specifying initial sea-ice thickness
1537      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1538    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1539      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1540    o pkg/seaice:
1541      - adjoint-friendly modifications
1542      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1543    
1544    checkpoint48e_post
1545    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1546    o dynamics: change definition of computational domain & adapt mom_fluxform
1547      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1548    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1549        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1550        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1551        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1552        inverted_barometer solid-body.cs-32x32x1
1553      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1554    
1555    checkpoint48d_post
1556    o in preparation for r*:
1557     a) use pre-computed gradient of hydrostatic potential:
1558        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1559     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1560        => affects results of glob_oce_pressure (different truncation error)  
1561      update output.txt of ideal_2D_oce & global_ocean_pressure
1562    
1563    checkpoint48d_pre
1564    o in preparation for r*:
1565      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1566      pass the 2 comp. of the grad. as arguments to momentum S/R.
1567      but for the moment, only used if it does not change the results.
1568    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1569    
1570    checkpoint48c_post
1571    Modifications in treatment of initial flux forcing controls
1572    to avoid extra storing of flux fields.
1573    
1574    checkpoint48c_pre
1575    o Added tidal_basin_2d experiment (currently 1D!)
1576    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1577    
1578    checkpoint48b_post
1579    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1580     (modification to pressure gradient not yet implemented)
1581    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1582      (for U & V) that are used for vertical advection of momentum.
1583    
1584    checkpoint48a_post
1585    o In preparation for r*, use temp. array to compute vertical transport
1586       in flux-form momentum pkg. => change results of few test-exp.
1587      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1588                        lab_sea, natl_box & plume_on_slope
1589    
1590    checkpoint48
1591    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1592    
1593    checkpoint47j_post
1594    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1595    o moved adexch from forward_step to addummy_in_stepping
1596    o added exch in ctrl_map_...
1597    o aveFreq.=0. at end of cost_final to avoid overwrite in
1598      reverse checkpointing loop
1599    o Yet more changes in gmredi:
1600      * adgmredi_calc_tensor
1601        avoiding all recomputation of gmredi_slope_limit
1602      * adgmredi_x/y/rtransport
1603        added flag for excessive storing to avoid recomp. of
1604        u/v/rtans, dTdx/y/z
1605        -> this is not really necessary and very memory-consuming
1606      * adgmredi_slope_psi:
1607        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1608      * gmredi_slope_limit
1609        re-activated full calculation of taperfct for case 'ac02'
1610    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1611    
1612    checkpoint47i_post
1613    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1614    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1615      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1616    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1617    o gmredi: fix few bugs.
1618    
1619    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1620    This will be a good checkpoint to plug into the ecco-branch.
1621    o few modif.'s to get latest version adjointed
1622      (mainly kick out code in ini_linear_phisurf)
1623    o modif's to run adjoint with exactConserv
1624    o case GM_BOLUS_ADVEC should be cleaned
1625      S/R gmredi_slope_psi should be cleaned
1626    o verification/carbon now has exactConserv=.TRUE.
1627    
1628    checkpoint47g_post
1629    o time-average AIM output: becomes independent from statvars time-average
1630      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1631    o After TAF bug fix:
1632      Tested adjoint of gmredi package.
1633      Tests were done with checkpoint47 rather than with latest
1634      checkpoint47f_post since the latter is broken for the adjoint
1635      verification/carbon/ contains both ADM and TLM gradient checks.
1636    Here they are, before they get changed/lost/stolen.
1637    Mostly modif.'s to fix numerical sensitivities.
1638    Gradient checks OK for
1639    - GM_taper_scheme:
1640      * clipping
1641      * ac02
1642      * linear
1643      * glw91
1644      * dm95
1645      * ldd97
1646    - GMREDI_OPTIONS:
1647      * GM_VISBECK_VARIABLE_K
1648      * GM_NON_UNITY_DIAGONAL
1649      * GM_EXTRA_DIAGONAL
1650      * GM_BOLUS_ADVEC
1651    in conjunction with data.gmredi parameters to be checked in
1652    in a few minutes under verification/carbon/code/
1653    
1654    checkpoint47f_post
1655    Merging from release1_p10:
1656    o modifications for using pkg/exf with pkg/seaice
1657      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1658        and SEAICE_EXTERNAL_FLUXES
1659      - pkg/exf CPP options EXF_READ_EVAP and
1660        EXF_NO_BULK_COMPUTATIONS
1661      - usage examples are Experiments 8 and 9 in
1662        verification/lab_sea/README
1663      - verification/lab_sea default experiment now uses
1664        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1665    
1666    checkpoint47e_post
1667    o created a tag prior to creating a branch
1668    
1669    checkpoint47d_post
1670    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1671      at the bottom boundary had an erroneous half slip boundary condition
1672    o added bottom drag and no slip boundary condition capabilities to
1673      oceanic pressure coordinates code
1674    o added new verification experiment global_ocean_pressure, this experiment is
1675      also described in the tutorial section of the manual
1676    checkpoint47d_pre
1677    
1678    checkpoint47c_post
1679    o Added a verification experiment for a global cubed-sphere ocean run
1680      -  verification/global_ocean.cubed32x32x30
1681      -  uses pkg/therm_seaice and pkg/bulk_forcing
1682    
1683    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1684    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1685      when using P-coordinate; only implemented for atmospheric config.
1686    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1687      NOTES: requires option NONLIN_FRSURF to be "#define".
1688    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1689    
1690    checkpoint47b_post
1691    Merging from release1_p9:
1692    o pkg/seaice
1693      - removed GOTO's and added taf directives
1694      - double precision constants to reduce the g77 (Linux)
1695        to F77 (SGI) differences reported in release1_p8
1696    o tools/genmake
1697      - added SGI options
1698    o verification/testscript
1699      - updated to that of checkpoint47a_post
1700    o verification/global_ocean.90x40x15/input/eedata
1701      - modified for SGI f77 compatibility
1702    o verification/lab_sea
1703      - added description of sea-ice model
1704      - added missing matlab routines
1705      - added test of thermodynamics parallelization
1706    
1707    checkpoint47a_post
1708    o new pkg: aim_v23
1709     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1710       for now, keep the same surface forcing as before.
1711     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1712     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1713     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1714    o add diagnostic of surface correction term in monitor output
1715    
1716    o bulk_force and therm_seaice
1717    - Two packages:  bulk_force (Bulk forcing)
1718      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1719    - Earlier integration from Stephaine Dutkiewicz
1720      and Patrick Heimbach.
1721    - Two ifdef statements for compile time,
1722       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1723    
1724    checkpoint47
1725    differentiable version of checkpoint46n_post
1726    o bug fix in quasihydrostaticterms
1727    o * "clean" adjoint code (in terms of extensive recomputations)
1728        can now be obtained for all GMREDI options (i.e. for
1729        - GM_VISBECK_VARIABLE_K
1730        - GM_NON_UNITY_DIAGONAL
1731        - GM_EXTRA_DIAGONAL
1732        - GM_BOLUS_ADVEC )
1733      * However, wrong gradient check problem remains unsolved.
1734      * New CPP options have been introduced for different
1735        tapering schemes
1736    o external_fields_load now part of differentiation list
1737    o pressure needs multiple storing;
1738      would be nice to have store_pressure at beginning or
1739      end of forward_step, e.g. by having phiHyd global (5-dim.)
1740      (NB: pressure is needed for certain cases in find_rho,
1741      which is also invoked through convective_adjustment).
1742    o recomputations in find_rho for cases
1743     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1744    o #define ATMOSPHERIC_LOADING should be differentiable
1745    o ini_forcing shifted to begining of initialise_varia
1746    o Incorporating QNVS line search routines into MITgcm
1747      (this is separate code, and therefore not under pkg)
1748      lsopt/, optim/
1749    o Updated verification/carbon/
1750      - #define GM_VISBECK_VARIABLE_K
1751      - GM_taper_scheme    = 'ldd97'    
1752    
1753    checkpoint46n_post
1754    Merging from release1_p8:
1755    o verification/natl_box:
1756      updating new external_fields_load routine
1757    o New package: pkg/seaice
1758      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1759      The sea-ice code is based on Hibler (1979-1980).
1760      Two sea-ice dynamic solvers, ADI and LSR, are included.
1761      In addition to computing prognostic sea-ice variables and diagnosing
1762      the forcing/external data fields that drive the ocean model,
1763      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1764      The implied surface heat flux is then stored in variable
1765      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1766      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1767      non-local transport term.  Because this call precedes model
1768      thermodynamics, temperature under sea-ice may not be "exactly" at
1769      the freezing point by the time theta is dumped or time-averaged.
1770      N.B.: fairly large differences in accuracy occur across
1771            different platforms/compilers; comparison between
1772            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1773            generated output gives:
1774       T           S           U           V
1775      C D M    c        m  s        m  s        m  s        m  s
1776      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1777      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1778      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1779    
1780      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1781    o GAD:
1782      - generated new common blocks to account for call of
1783        same gad routines with differing traceridentities
1784        (needed to modify tracerIdentity indices in GAD.h)
1785      - generated separate common blocks for case useCubedSphereExchange
1786        (Department of Futurology)
1787      - parameter lists to gmredi_?transport: added tracerIdentity
1788      - added new key indices to tamc.h
1789    o external_fields_load:
1790      - added this routine to TAF list
1791      - needed to make some common blocks global and additional storing
1792        along the same lines as exf package (checkpoint_lev?_directives.h)
1793    o exf:
1794      updated external forcing package
1795      - bug fixes carried over from ecco-branch
1796        (missing OBCS_OPTIONS.h in two routines)
1797      - enable easy to use "no forcing".
1798      - added exf I/O for atmospheric loading
1799      - added exf I/O for runoff data
1800      - transfered scaling between exf <-> MITgcm to exf namelist
1801    o Adding new verification experiment global_with_exf.
1802      This verification experiment is almost identical to the
1803      global_ocean.90x40x15 experiment, except that it uses
1804      the exf (and cal) package instead of the
1805      external_fields_load routine (cf README file).
1806    
1807    checkpoint46m_post
1808    o modified testscript to return -- when there are no lines of "%MON" output
1809    o added new flag "quasiHydrostatic" for QH mode
1810      and new routine quasihydrostaticterms()
1811    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1812      New routine: mom_u_coriolis_nh()
1813    o fixed sign of non-hydrostatic metric terms in u and v equations.
1814      Depend on correct sign of gravitySign.
1815    o added work.pc* to .cvsignore in aim directories using ifc
1816    o introduced flag for controllin non-hydrostatic metric terms
1817    o removed gravitySign from PARM04
1818    o switched to g77/ifc from pgf77 in aim experiments
1819    
1820    checkpoint46l_post
1821    o made convective adjustment work with pressure coordinates:
1822     - changed the direction of k-loop in convective_adjustment.F for the
1823       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1824     - adjusted the reference pressure k-index in convective_adjustment.F
1825     - adjusted the convection condition in convect.F (in analogy to
1826       calc_ivdc.F)
1827     - convective_adjustment no longer computes anything on the halos
1828     - removed the warnings about negative salinity from find_rho.F and
1829       find_alpha.F; instead the new routine look_for_neg_salinity, called
1830       at the beginning of find_rho, find_alpha, and find_beta, does a
1831       check of the entire slice, if CPP-option
1832       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1833    checkpoint46l_pre
1834    
1835    checkpoint46k_post
1836    o fixed the verification/global_ocean.90x40x15 experiment:
1837     - new bathymetry (the world according to A., JMC, and M.)
1838     - new initial fields and forcing fields (*.bin files)
1839     - new POLY3.COEFFS (for the next release one should switch to a full
1840       equation of state: JMD95P or MDJWF)
1841     - fixed several errors and redundancies in the data file
1842     - experiment uses looped cells
1843     - added matlab directory with diagnostic scripts for plotting of output
1844    
1845    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1846     - read AIM physics parameters from a file (data.aimphys)
1847     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1848    
1849    checkpoint46j_post
1850    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1851    o move wVel computation at the end of the time step, in S/R integr_continuity
1852    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1853    o update timeave pkg for wVel diagnostic.
1854    checkpoint46j_pre
1855    
1856    checkpoint46i_post
1857    o Clean up AIM package (and keep the results unchanged):
1858      include CPP_OPTION and use IMPLICT NONE in all routines ;
1859      declare all the variables _RL ; use _d 0 for all numerical constants.
1860      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1861    
1862    checkpoint46h_post
1863    o cleaned up the use of rhoNil and rhoConst.
1864      - rhoNil should only appear in the LINEAR equation of state, everywhere
1865        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1866        and the dynamical equations are all divided by rhoConst
1867    o introduced new parameter rhoConstFresh, a reference density of fresh
1868      water, to remove the fresh water flux's dependence on rhoNil. The default
1869      value is 999.8 kg/m^3
1870    o cleanup up external_forcing.F and external_forcing_surf.F
1871      - can now be used by both OCEANIC and OCEANICP
1872    checkpoint46h_pre
1873    
1874     Added code to convert surface volume flux (fresh water) into
1875     a mass flux when using P coordinates in the ocean (OCEANICP).
1876     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1877    
1878    checkpoint46g_post
1879    o Include a new diagnostic variable phiHydLow for the ocean model
1880      - in z-coordinates, it is the bottom pressure anomaly
1881      - in p-coordinates, it is the sea surface elevation
1882      - in both cases, these variable have global drift, reflecting the mass
1883        drift in z-coordinates and the volume drift in p-coordinates
1884      - included time averaging for phiHydLow, be aware of the drift!
1885    o depth-dependent computation of Bo_surf for pressure coordinates
1886      in the ocean (buoyancyRelation='OCEANICP')
1887      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1888        Theta, Salinity, and Pressure in the parameter list. This routine is
1889        presently contained in find_rho.F. This routine does not give the
1890        correct density for 'POLY3', which would be a z-dependent reference
1891        density.
1892    o cleaned up find_rho
1893      - removed obsolete 'eqn' from the parameter list.
1894    o added two new verification experiments: gop and goz
1895      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1896    checkpoint46g_pre
1897    
1898    checkpoint46f_post
1899    o Enable tangent linear (forward mode) gradient checks:
1900      - extended active file handling to g_... files
1901      - added TANGENT_SIMULATION to theSimulationMode
1902      - extended grdchk package accordingly
1903    o added tangent linear setup in verification/carbon/code_ftl
1904    o added adjoint setup in verification/front_relax/code_ad
1905    
1906    checkpoint46e_post
1907    o Added new equation of state -> MDJWF
1908      - EOS of McDougall et al., 2002, JAOT, submitted
1909      - caveat: the equation of state is only valid for a smaller (more
1910        realistic?) range of values than JMD95P/Z and UNESCO
1911      - added masks to the calculation of pressure in store_pressure
1912      - added more check values for density in check_eos (ini_eos.F), some of
1913        the old check values are out of the range of the MDJWF-eos, so don't
1914        expect perfect matches for those
1915    checkpoint46e_pre
1916    
1917    checkpoint46d_post
1918    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1919      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1920      case of pressure coordinates. eosType='JMD95Z' in
1921      combination with buoyancyRelation='OCEANICP' now causes an error.
1922    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1923      in find_alpha/beta.
1924    checkpoint46d_pre
1925    
1926    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1927      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1928    
1929    checkpoint46c_post
1930    o Changes necessary for ocean in p-coordinates
1931     -  Added new buoyancy relation = 'OCEANICP'
1932     -  Added new parameters = gravitySign (this used to be contained inside
1933        the factor dRdZ which I added when we first switched to R coordinates).
1934     X GM/Redi is not compatible (yet)
1935     X bottom drag and no-slip need to be debugged.
1936    checkpoint46c_pre
1937    
1938    checkpoint46b_post
1939    o Added new equation of state -> JMD95Z and JMD95P
1940      - EOS of Jackett and McDougall, 1995, JAOT
1941      - moved all EOS parameters into EOS.h
1942      - new routines ini_eos.F, store_pressure.F
1943    o Added UNESCO EOS, but not recommended because it requires
1944      in-situ temperature (see JMD95)
1945    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1946      unesco.f to be used with POLY3
1947    checkpoint46b_pre
1948    
1949    checkpoint46a_post
1950    o Added (atmospheric) pressure loading
1951      - new field in FFIELDS.h, etc...
1952      - new cpp flag ATMOSPHERIC_LOADING
1953    o Changed hFacC to _hFacC in calc_phi_hyd.F
1954    o Added SHORTWAVE_HEATING to some files for consistency
1955    checkpoint46a_pre
1956    
1957    checkpoint46
1958    further merges from release1_p5
1959    o new ctrl package
1960      - adopted from ECCO environment to enable optimization
1961      - added Eliassen Palm fluxes to controls
1962    o added Eliassen Palm flux controls to gradient check package
1963    o cost package
1964      - Compatible with new ctrl package
1965      - added Eliassen Palm cost hooks
1966      - modif's of existing cost functions
1967    o Adjoint-related bug fixes in kpp:
1968      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1969      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1970    o autodiff package
1971      - flow directives:
1972        + new for S/R do_the_model_io
1973        + enhanced for S/R checkpoint
1974        + new gmredi.flow
1975      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1976        disable adcommon.h/g_common.h by default.
1977      - fixed problem for adjoint of global_max
1978    o modified verification/carbon/
1979    o New setup for adjoint of global_ocean
1980    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1981    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1982    o incorporated hooks for sponge layer code (external_forcing.F)
1983    
1984    checkpoint45d_post
1985    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1986  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1987    (affects plume_on_slope "cg2d" output)    (affects plume_on_slope "cg2d" output)
1988    o add new parameter deltaTfreesurf for free-surface time stepping
1989    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1990  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1991  o change phiMin in exp1 (to agree with documentation)  o change phiMin in exp1 (to agree with documentation)
1992  o add new flags:  o add new flags:

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