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revision 1.47 by heimbach, Tue Aug 21 16:38:41 2001 UTC revision 1.552 by jmc, Sat Sep 24 00:43:02 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 add brackets in multi-terms sum to get same truncation, independent of
8      the face number (manage to get exactly same value of gU,gV at the cs-edge)
9      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
10    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
11      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
12      a maximum grid-scale Reynolds number.  Also, changes all length calculations
13      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
14      Suggested values of viscosity parameters found in mom_calc_visc.
15      Many new viscosity diagnostics available.
16    
17    checkpoint57s_post
18    o Add clearing-house for viscosity calculations, mom_calc_visc and
19      correct numerous bugs in LeithD and Smagorinsky discretizations.  
20      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
21      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
22      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
23      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
24      The Strain-Tension form is now called with useStrainTensonVisc=.true.
25      ViscAhStrain and viscAhTension are now retired.
26    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
27    o In response to JMC's bug report, genmake2 now ignores any soft-links
28      that it finds in the *current* directory when searching for files.
29      Soft-links found in any other source directories will still work as
30      they did before.
31    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
32      a C routine to unlimit the stack size
33    o mnc-ify pkg/aim snapshot vars
34    o mnc-ify pkg/land as requested by Daniel
35    o various changes to mnc including:
36      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
37      - output can now be grouped so that all files within a group
38          change the ITER portion of their names in lock-step together
39      - can now read ("global") PER-FACE (in addition to PER-TILE) files
40          and works with both EXCH1 and EXCH2 (but needs more testing)
41      - writing works for all verification test cases w/ g77 on Linux
42    
43    checkpoint57r_post
44    o make MNC variable initialization happen earlier
45    o add diagnostics for (almost) each term of the momentum Eq.
46    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
47    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
48    o remove MINIMAL_TAVE_OUTPUT option ;
49      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
50    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
51      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
52    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
53    o add time-dependent SST, SSS control
54    o cost terms in ecco/ modularized (new cost_generic.F)
55    o cost_averages routines are modularized (new cost_averagesgeneric.F)
56    o new infrastructure for seaice model vs. obs misfits in seaice/
57      * driver from the_main_loop.F is seaice_cost_driver.F
58      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
59      * gradient check in Exp. 6a of natl_box_adjoint/
60    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
61      (see README file)
62    
63    checkpoint57q_post
64    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
65    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
66      - bug was reported by Jean-Michel and Ian Fenty
67    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
68      update exp. cpl_aim+ocn output.
69    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
70      Needed for high-res. runs with large global files
71      to be able to limit tapelev size
72    o Changed some tests for adjoint:
73      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
74      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
75      * global_ocean.90x40x15/ back to default 3-level checkpointing
76    o Modifications to enable scripted COMMON to MODULE conversion
77      * verification/OpenAD/code/ has necessary scripts and description;
78      * converts, compiles and runs successfully;
79    
80    checkpoint57p_post
81    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
82    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
83      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
84    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
85    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
86      (was already the case for dissipation with mom_vecinv,
87       and also the case for grad.PhiHyd when staggered-timeStep)
88      This will allow to put dissipation out-off the AB time-stepping.
89     Unfortunately, affects truncation error. Update output of exp. that "fails"
90      (cg2d matching number) and leave the others for later: front_relax(10),
91      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
92      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
93    
94    checkpoint57o_post
95    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
96      (2) its ready to be documented during the 20050801 DocFest
97    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
98      for ideal_2D_oce and lab_sea on linux_ia32_g77
99    o set to #undef CTRL_SET_OLD_MAXCVARS_30
100      in global1x1_tot/code_seaice_adj to access indices 32, 33
101      (worth another tag)
102    
103    checkpoint57n_post
104    o adding precip control xx_precip 32
105    o adding swflux control xx_swflux 33
106    o Replacing 10 forcing penalty cost routines by 1 generic.
107    o Implementing partitioning in time-mean and variable adjustment
108      for atmos. state.
109    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
110    o in natl_box_adjoint:
111      * updated exp 1 to 10
112        (but does not have time-mean vs. variable split results yet)
113    o updated global1x1/*_seaice_adj/
114      to incorporate latest changes
115    o enable useSingleCpuIO for mdsio vector routines
116      (applies in particular to tapelev I/O)
117    o removed inefficient K-loop in all active_file*control*.F
118    
119    checkpoint57m_post
120    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
121      and advect_cs (use EXCH-2 and standard cs-32 grid files).
122    o pkg/exch2: filling of face-corner halo regions is optional
123      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
124    
125    checkpoint57l_post
126     tag before updating tutorials (pre-release-2)
127    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
128       for output and interpolation of input fields onto model grid)
129    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
130       Affects results of exp. rotating_tank ; update output.txt.
131    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
132          and taking the square quantity and/or using a fraction-weight field.
133    o fix aim_diagnostics_init.F mate numbers.
134    o add mnc output capability to diagnostics/diagstat and update
135      our cvsignore files for the ACSII output generated
136    
137    checkpoint57k_post
138    o lab_sea now uses diagnostics package and provides a suite of
139      new EXF diagnostics output.
140    
141    checkpoint57j_post
142    o exf
143      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
144        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
145        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
146      * extended diagnostics output
147        - now includes all EXF variables
148        - hs, hl moved to common block
149        - separate S/R for diagnostics, called after ctrl vector is added
150        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
151        - EXFqnet contains true Qnet (i.e. includes qsw)
152      * updated verif. lab_sea, global_with_exf
153      * Rearranging hflux (exf_mapfields -> exf_getforcing)
154        to ensure that diagnostics sees a true EXFqnet
155    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
156    o diagnostics pkg: change pointers so that 1 diagnostic can be used
157      several times with different frequencies.
158    o mnc-ify the thsice package as requested by Daniel Enderton
159      - the monitor--MNC output needs work
160      - many attributes need to be added (most are currently blank)
161    o mnc-ify theaim_v23 package as requested by Daniel Enderton
162      - many attributes need to be added (most are currently blank)
163    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
164    o add Sadourny like discretization to the 4th.O vorticity advection scheme
165    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
166      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
167         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
168    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
169     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
170    
171    checkpoint57i_post
172    o Diagnostics package was changed: diagnostic allocation is now deactivated
173      by setting an empty file name in the namelist (used to be by setting 0 frequency)
174    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
175      add 1rst Order upwind vertical Shear.
176    o add a quick fix for A/B checkpointing in OFFLINE mode
177    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
178      end-run around the C/Fortran linking horror in eesup/src/timers.F
179    o added pkg/runclock: allows user to terminate run based on wall clock
180    o added non-hydrostatic scaling parameter: nh_am2
181    o pkg/my82: futile attempt to make results compiler-independent by adding
182      some "_d 0", etc. no effect.
183    o for mnc output, fill the 'T' coordinate var with myTime and create a
184      separate 'iter' variable for iteration count
185    o pkg/diagnostics:
186      add new capability: output of Global/Regional & per-level statistics ;
187      tested against monitor output (including land & thSIce) on various exp.
188    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
189    
190    checkpoint57h_done
191      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
192      data.diagnostics, data.gchem, data.ptracers) is done.
193    
194    o pkg/diagnostics: prepare for Global/Regional statistics.
195      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
196    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
197      and rename it: DIFFERENT_MULTIPLE
198    
199    checkpoint57h_post
200    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
201    o pkg/diagnostics: change output frequency, now in seconds (instead
202      of Nb of iterations). This requires to change data.diagnostics.
203    checkpoint57h_pre
204    
205    o in mnc, let the user create the output dir if both mnc_outdir_date
206      and mnc_outdir_num are false
207    o add fflags() to pkg/diagnostics which allows one to specify, on a
208      per-file basis, the file precision [default behavior is unchanged]
209    o added diagnostics to pkg/kpp, including computation of mixed layer
210      depth based on a temperature/density criterion
211    o updated verification/natl_box to test the new pkg/kpp diagnostics
212    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
213    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
214    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
215      not mnc -- this mistake was found by JMC and is now corrected
216    
217    checkpoint57g_post
218    o add Adams-Bashforth 3rd Order time stepping:
219      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
220      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
221    checkpoint57g_pre
222    
223    o make lambda[Theta,Salt]ClimRelax spatially varying
224      (default remains spatially uniform constant based on tau)
225    o added new control variables
226      * init. uVel, vVel, etanN
227      * lambda[Theta,Salt]ClimRelax
228    o separate masks used for ctrl_pack/unpack 'from write_grid' output
229      (suggested by G. Forget)
230    
231    checkpoint57f_post
232    o add parameter "baseTime" = model base time = time at iteration zero
233      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
234      account for baseTime shift
235    o move Coriolis arrays from PARAMS.h to GRID.h
236    checkpoint57f_pre
237    
238    o mnc-ifying the seaice package
239    o introduced an alternative length scale calculation for use in the limiting
240      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
241    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
242    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
243      as well as grad(vort3).  Made it compatible with both approximate form
244      for the cubed sphere and full form of these gradients.  Added flag
245      useFullLeith to select between approximate and full form.  
246    o add "d0" in getcon.F to reduce differences between compilers/platforms
247      update output.txt of exp. fizhi-gridalt-hs
248    o change port_rand funtion to allow to set the seed.
249    o fix obscure MNC bug involving conversion between reals and integers
250      - it caused no problems with certain (eg. gcc, ifc) compilers but the
251        new version is now more standards-compliant
252    o adjoint-related modifications
253      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
254      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
255      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
256    
257    checkpoint57e_post
258    o Adding eddy stress controls a la Ferreira et al.
259    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
260    
261    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
262      update output.txt of exp. fizhi-gridalt-hs
263    o add more "Z" dimensions and associated coordinate vars to MNC
264    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
265    o parameter calendarDumps: when set, approximate months (30-31 days) and years
266      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
267      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
268      months and years.  Requires pkg/cal.
269    o diagnostics: add pickup functionality
270      - off by default for backwards compatibility
271      - current version only uses MDSIO -- MNC will be added
272    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
273    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
274    
275    checkpoint57d_post
276    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
277    o modify verification/ideal_2D_oce so that it tests the creation of mnc
278      output from the diagnostics package
279    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
280    o make genmake2 more portable by using ".$FS" instead of ".f" for more
281      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
282    o add coordinate variables to the MNC output from the diagnostics package
283    o change MNC-flags default value: true when useMNC=TRUE
284    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
285      the ability (off by default) to read the grid information using MNC
286    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
287    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
288    o do snap-shot diagnostics at the middle of the time-interval (instead of
289      at the end).
290    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
291      new test for AIM with thSIce + slab-ocean
292    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
293    o move state variable diagnostics to the beginning of the time step ;
294      (note: still needs some work specially for snap-shot diagnostics)
295      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
296    
297    checkpoint57c_post
298    o Change testing option (-ieee) to get closer agreement between g77 & ifort
299    o generate new output.txt files on faulks with g77 & the new -ieee option
300    checkpoint57c_pre
301    
302    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
303      update output.txt of exp. global_ocean.90x40x15
304    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
305      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
306    o add saltFlux(+File) forcing capability with periodicExternalForcing
307    o allow to use pkg diagnostics for GM-Redi & ThSIce output
308    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
309    o improvements for the MNC output from DIAGNOSTICS:
310      - correct handling of the unlimitied dimension
311      - all dims now have associated coordinate variables
312      - variables located at U, V, and Corner ("Z") points are now written
313        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
314        *all* data points are output
315    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
316    o added pkg/seaice/seaice_monitor.F
317    o mdsio_readfield.F can now read files visible only to master MPI process.
318    o pkg/seaice: some test code for ice-modified ocean stress
319    o exf_getffields interpolation defaults to bilinear for all scalar forcing
320      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
321      spurious negative numbers for precipitation and humidity.  Will cause
322      some small numerical differences for integrations using pkg/exf/exf_interp.F.
323    o pkg/ctrl/
324      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
325        May be enabled via doPackDiag
326      *  introduce z-scaling of
327         + gradient (doZscalePack) and
328         + control (doZscaleUnpack)
329    o pkg/mdsio/
330      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
331      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
332    
333    checkpoint57b_post
334    o simplify options in diagnostics_fill arguments (remove weird combinations)
335    o fix MNC coordinate variables so that they now contain per-face index
336      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
337      general, EXCH2 grids are only aligned to a "local" coordinate system
338    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
339    o Implement instantaneous output within pkg diagnostics:
340      setting a negative frequency in data.diagnostics produces
341     "snap-shot" output (as opposed to time-average if freq > 0)
342    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
343      NOTE: change ptracer diagnostics name: use 2 characters to work with
344            more than 9 tracers. Add also diagnostics of advect & diffus flux.
345    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
346      becomes the coordinate variable for the 'T' dimension
347    o add CF-style coordinate variables to MNC
348      - just a first cut:  numbers are meaningless on the cubesphere and
349        missing along the T axis but otherwise it works!
350    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
351    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
352    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
353      this is based directly on what the model compute, so that the content of
354      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
355    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
356    o clean up build options files for SunOS, in particular
357      - remove -traditional from xmakedepend
358      - change -xarch=v9 to -xarch=native for f77
359      - restore use of make (not gmake)
360      - add CC=gcc if using g77
361    o changes per discussion of AM, JMC, & EH3 today:
362      - move redundant "grid" variables out of "state" -- in preparation of
363        creating proper CF-style coordinate variables and in recognition
364        that any/all grid variables can be easily copied (eg. w/NCO) from
365        the grid files into any of the other NetCDF files
366      - *always* output grid variables with MDSIO (this will eventually be
367        changed)
368      - output MNC grid file if useMNC is true
369    o every instance of _END_MASTER() has been found and replaced with
370      _END_MASTER( myThid ) in order to satisfy certain picky Sun
371      preprocessors
372    o re-arrange diagnostics pkg initialisation:
373     - allow each package to extend the available diagnostics list
374     - add some checking and fix small problems (multi-threaded, ...)
375     - new S/R diagnostics_fill (replace fill_diagnostics):
376       look through the short list of active diag. (instead of the long list)
377       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
378    
379    checkpoint57a_post
380    o this set of changes restores TAMC compatibility
381      tested for global_ocean.90x40x15 adjoint on trough
382      (what a pain)
383    
384    checkpoint57a_pre
385    o some modifs in tools/build_options for sunos
386    o call ctrl_pack for ctrl at end for optimcycle=0
387    
388    checkpoint57
389    o add horizontal bi-harmonic viscosity for vertical velocity
390      - new parameter viscA4W (defaults to viscA4)
391      - affects only non-hydrostatic code
392      - to be done: no-slip lateral boundary conditions
393    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
394    o implement Implicit Vertical advection for pTracers
395    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
396      (implemented also for implicit vertical diffusion & advection)
397    o OBCS: extend application of tracer open boundary conditions
398      to a strip beyond the boundary of width Olx/Oly
399    o add call monitor to TAF set of required calls (flow directives)
400      and include in natl_box_adjoint
401    o untangle a few ifdefs related to cost, ctrl, autodiff
402      untangel a few ALLOW_ECCO_OPTIMIZATION
403    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
404      (theta2, salt2 in ecco_cost_weights)
405    
406    checkpoint56c_post
407    o OBCS as control variables
408      - update ctrl_ad_diff.list, obcs_ad_diff.list
409      - remove balance of obcs controls from default
410      - fix index bug nobcs in ctrl_init
411      - fix dummy fields filen in ctrl_pack
412      - add dummy weights for obcs
413    o lsopt: comment out fort.94 output
414    o optim:
415      - remove unnecessary header files
416      - adjusted namelists
417      - add xerbla.F to Makefile
418    o exf:
419      - multiple modifications of exf_check_range
420      - unit change in exf_init_runoff from [m/year] to [m/s]
421    o mdsio:
422      - i/o-vector change debugLevel from debLevA to debLevB
423    
424    checkpoint56b_post
425    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
426      is called from DO_THE_MODEL_IO
427      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
428      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
429      - clean up PTRACERS_WRITE_TIMEAVE a little
430    o add another verification experiment that tests both the cfc-pkg and
431      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
432      reactive tendencies treated inline with regular timestepping
433    o testreport previously did a lousy job of comparing small numbers, so
434      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
435      implemented in the little c-progam tmp_cmpnum.c which is embedded in
436      testreport.
437    o ptracers_monitor: bug fix for MPI
438    
439    checkpoint56a_post
440    o GCHEM: finish reorganizating the package
441      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
442        (introduces another 3D-array for each passive tracer, but only if
443        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
444        gchemTendency is not needed because the timestep is done separately)
445      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
446      - GCHEM is now---more or less cleanly---separate from PTRACERS
447      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
448        so clear to me how that should be done in a general way.
449    o CFC: improve formatting of output in CFC_ATMOS
450    o PTRACERS:
451      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
452        that ALL experiments with ptracers enable can be checked. This makes
453        GCHEM_MONITOR obsolete.
454      - include a runtime parameter PTRACERS_monitorFreq that defaults to
455        monitorFreq
456      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
457    o add PTRACERS (PTR0[1-5]) to testreport output
458    o exf_check_range:
459      * default changed to .TRUE.
460      * will check values for niter0 if debLevA, every timestep if debLevB
461      * STOP in exf_check_range if 'out of range'
462      * range chosen generous to allow for potential extema
463      TBD: a version with stricter range
464           permitted range would be runtime parameters
465    o GMredi:
466      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
467      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
468      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
469    o GCHEM:
470      - move call to GCHEM_FORCING_SEP, so that it is now called before
471        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
472      - introduced a useGCHEM runtime flag and applied it everywhere.
473      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
474        this flag is now only visible within GCHEM-pkg routines.
475      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
476        be replaced by a 3D array that is computed before thermodynamics; for
477        this, the tracer ID iTracer had to be included into the parameter list
478        of ptracers_forcing
479      - set up forward_step to call gchem_forcing, that will replace
480        gchem_forcing_int in ptracers_forcing
481      - cleaning up
482    o small cleaning of exch2: remove files that are also in eesupp/src
483    
484    checkpoint56
485    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
486    o mnc: cleanup "full" files--fixes out-of-memory problem
487    o ECCO-GODAE
488      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
489      * fully merged and updated from SIO code
490        windstress sign change affects
491        - exf_inscal_[u/v]stress
492        - sign of xx_tau[u/v] adjustments
493        - signs in cost_scat
494      * ctrl_get_gen: avoid update of tau[u/v] for first few days
495      * natl_box_adjoint updated and compressed
496      * 2-level checkpoint switch added
497        (tested in EXP. 1 of natl_box_adjoint)
498      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
499    o SVD
500      * first complete, non-hacked version for SVD calculations
501      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
502        performed via direct access files admtlm_vector.it????
503        (via ctrl_[un]pack)
504      * optimcycle is used for ARPACK iteration counter
505        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
506      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
507        and add linear transforms where necessary
508      * controls are initial/final SST, SSS (can be extended; need to check
509        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
510    o mdsio: filename info to both stderr, stdout
511    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
512      from sign change
513    
514    checkpoint55j_post
515    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
516      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
517    o add consistent build directories and .cvsignore files to verification
518    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
519    o make all subroutines 30 or less characters in length for certain older
520      compilers to work (a thorough search only turns up two routines in
521      pkg/ptracers)
522    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
523      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
524    
525    checkpoint55i_post
526    o change arrays for total vertical diffusivity (2.D if explicit,
527      3.D if implicit) ; each ptracer uses its own background value.
528    o added mnc/NetCDF output capability to ocn_compon_interf
529      - added bits to verification/cpl_aim+ocn so that it can run on
530        ITRDA and other clusters without the mpirun "-wd" option
531    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
532      configuration
533    o give MNC the ability to create additional files rather than
534      exceeding a specified file size limit "MNC_MAX_FILESIZE"
535      - the default is just less than 2GB which is a practical limit
536        on many systems
537    o Compute the non-local term using either KPP vertical diffusivity (=default)
538       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
539    
540    checkpoint55h_post
541    o add verification test "vermix"
542    o remove all the *_ioinc flags and replace with the single global
543      outputTypesInclusive flag
544    o allow to set a vertical profile of vertical diffusivity for T & S
545    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
546    o useMNC moved from data.mnc to data.pkg
547    
548    checkpoint55g_post
549    o Renaming carbon AD experiments to comply with testreport conventions
550    o Updating adjoint of Held-Suarez hs94.1x64x5
551    o Fixing directives for non-ECCO forward_step, after ECCO directives
552      have been fixed to avoid recomp. of do_oceanic_phys
553      Works well for global_ocean.90x40x15,
554      but recomp. issue remains for carbon
555    o Updating adjoint output for natl_box_adjoint after
556      pkg/ecco has been modified (see taga c55d_post)
557    
558    checkpoint55f_post
559    o rename to timeave_init_fixed
560    
561    checkpoint55e_post
562    o some delicate re-shuffle of store directives to avoid one
563      extra call of do_oceanic_physics
564      affects ecco_the_main_loop.F, do_oceanic_physics.F
565      checkpoint_lev1_directives.h
566    o NB: this may break global_ocean adjoint temporarily,
567      but it is clear how to fix it. Will do later, need this now.
568    
569    checkpoint55d_post
570    o ECCO specific cost function terms (up-to-date with 1x1 runs)
571    o ecco_cost_weights is modified to 1x1 runs
572    o modifs to allow observations to be read in as
573      single file or yearly files
574    o enable to read exf forcing fields as either
575      single file or yearly files (flag useExfYearlyFields)
576    checkpoint55d_pre
577    
578    o switch between 2-level and 3-level checkpointing
579    o add ability of MNC to write local and "partial" (eg. 2D slices where
580      the full 3D field is never actually stored) arrays to NetCDF files
581      with the correct (that is, the complete multi-dimensional) set of
582      array indicies
583      - used in mom_vecinv() to write the diagFreq output
584      - tested (demonstrated) in verification/aim.5l_cs
585    o further mnc-ification
586      - add verification/lab_sea to the list with mnc setups
587      - fix undefined mnc v-names in cd_code
588      - add kpp to mnc output (both snapshot and timeave)
589    o non-hydrostatic code
590      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
591        in calc_gw.F
592      - defaults to viscAh
593      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
594        friction or Leith) in non-hydrostatic mode, as long as there is
595        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
596    o pkg/cost
597      extend simple cost functions to treat time mean quantities
598      (T,U,V) via cost_accumulate_state from cost_tile
599    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
600        be 2 times larger than the minimum size the advection scheme requires.
601        now get a perfect conservation of salt in advect_cs test-exp (updated)
602    o GGL90 (Gaspar's TKE mixed layer)
603      - add horizontal diffusion of TKE, requires exchanges in
604        do_fields_blocking_exchanges, horizontal diffusivity is zero by
605        default. In OPA there is no horizontal diffusion of TKE but the
606        mixing coefficients are computed from a horizontal average of TKE of
607        6 points or so. I think that diffusion has a little more physical
608        justification.
609      - clean up ggl90_calc in the hope of reducing memory usage (this hope
610        was in vain)
611      - mask tke-variable in ggl90_init
612    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
613    o fix biharmonic diffusion on CS-grid.
614    o more obcs stuff
615      - added obcs_external_fields_load as an alternative to the EXF-pkg option
616        for reading boundary values. This routine is called from
617        obcs_prescribe_read
618      - updated obcs_check
619      - changed sponge layer relaxation parameter units for days to seconds
620      - turned off sponge layer by default
621      - changed argument list of OBCS_CALC to myTime+deltaTclock
622      - fixed about 35 bugs in obcs_external_fields_load
623    
624    checkpoint55c_post
625    o obcs stuff
626      - new runtime flags useOBCSprescribe, useOBCSbalance
627      - re-arranged obcs_calc
628      - moved exf_getobcs to obcs_prescibe_read
629        obcs_prescibe_read is called after ORLANSKI stuff
630        and independent of it (executable can contain all).
631      - updated obcs_check
632      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
633        These may be necessary only if tangential velocities are
634        prescribed at OB, not sure, needs testing.
635    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
636      which simplifies the calls and passes the ifc check-bounds test
637    
638    checkpoint55b_post
639    o add a 2D scalar, Z location, exchange_2 routine.
640    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
641      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
642      affects advect_cs results (for the wrong reason): update output.txt
643    o use a more standard discretization for biharmonic viscosity ;
644     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
645      affects results of dome set-up: update output.txt
646    o fix gad_advection.F (CubedSphere part), back to version 1.23
647    o fix bug in mom_vi_del2uv.F (CubedSphere part).
648    
649    checkpoint55a_post
650    o merged code to
651      * prescribe/read time-dependent open boundaries
652        (works in conjunction with exf, cal)
653      * sponge layer code for open boundaries
654      * each boundary N/S/E/W now has its own CPP option
655        (healthy for the adjoint)
656    
657    checkpoint55
658    o up-to-date adjoint of previous breaks
659      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
660      - global_ocean_ebm: adjoint still needs fix (TLM ok)
661      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
662      - carbon: * remove tr1-related adjoint verification
663                * add ptracer as control variable
664    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
665      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
666    
667    checkpoint54f_post
668    o in verification/carbin/ remove experiment related to
669      ALLOW_PASSIVE_TRACER (array tr1 etc)
670      code_ad/ input_ad/ results_ad
671    
672    o add two new packages
673      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
674        + subject to optimization (memory)
675      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
676        + subject to reordering (many GOTOs in the original code)
677        + so far opps is called for every (i,j) point, and then operates in
678          the vertical; one may want to reorder the scheme in order operate in
679          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
680          fields)
681    o overhaul of IO so that we now have flags for MDSIO and/or MNC
682      - all verification tests compile and run with linux_ia32_g77
683      - defaults are compatible with current input files--nothing
684        should change if you were not previously using MNC
685      - MNC output has been added in numerous places (eg. timeave)
686        but there are still a few writes not yet do-able with MNC
687        (this is in progress)
688      - flags now allow for either/or/both use of MDSIO and MNC and
689        documentation will soon follow
690      - numerous small formatting cleanups for ProTeX
691    o add version info (via BUILD_INFO.h) to MNC and stdout
692    
693    checkpoint54e_post
694    o add two new packages
695      - pp81 (Packanowski and Philander, 1981), Richardson number and
696        stratification dependent mixing
697      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
698      - these scheme operate in a similar manner as KPP (without ghat, of
699        course), however there is only one diffusivity that is used for both
700        temperature and salinity (and passive tracers)ç
701    o add offline package
702    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
703      provided by Stephanie Dutkiewicz
704    o genmake2: add ability to search for C compilers and cleanup test output
705      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
706    
707    checkpoint54d_post
708    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
709    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
710      leading to additional shift by 5 days each year of integration
711       (i.e. leading to considerable offset over the years)
712    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
713    o start with no AB and no initial filtering (staggerTimeStep):
714      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
715    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
716      (external loading & cpl import/export stay in forward_step.F)
717    o update coupling interface to work with new staggerTimeStep
718    o change MDSIO ptracers_pickup.
719    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
720    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
721    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
722    
723    checkpoint54c_post
724    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
725      this affects (truncation error) output.txt of test-exp:
726       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
727    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
728    o change Qnet to always be the net heat flux, (+upward).
729      affects (truncation error) output of natl_box exp.: updated
730    o define the max number of passive tracers in PTRACERS_SIZE.h
731    o start to test mnc routinely in exp0
732    o add sea-ice loading (sIceLoad) as a new forcing field.
733    
734    checkpoint54b_post
735    o add testreport "-j JOBS" option for parallel builds (tested and pretty
736       impressive on Altix and Opteron systems)
737    o diagnostics can now write NetCDF files through the mnc package
738    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
739    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
740    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
741      affects (truncation error) output of lab_sea & natl_box exp.: updated
742    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
743    
744    checkpoint54a_post
745    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
746    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
747    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
748    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
749      + internal_wave (shift in writing cg2d_ini_res)
750    checkpoint54a_pre
751    
752    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
753      - modified verification/lab_sea and natl_box_adjoint accordingly
754    
755    checkpoint54
756    checkpoint53g_post
757    o prepare splitting of thermodynamics: store convect.counter in common block
758    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
759      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
760    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
761    o new parameter "nShapS": allow to treat differently S from T (nShapT)
762    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
763    o restore adjointability
764    
765    checkpoint53f_post
766    o modifications that affect AIM experiment results (update output.txt):
767      - no advection of S at top interface Nr (pkg/generic_advdiff)
768      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
769    o AIM pkg:
770      - include stability function into surf.Flux derivative relative to Tsurf
771      - calculate clear-sky radiation & surface temp. change (for diagnostics)
772    
773    checkpoint53e_post
774    o merged cylindrical coord configuration
775    o added rotating_tank experiment
776    checkpoint53e_pre
777    
778    checkpoint53d_post
779    o faulks upgraded: re-generate output.txt that have changed:
780       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
781    o Added Bryan and Lewis, 1979, vertical diffusivity profile
782    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
783    o added Sadourny discretization of Coriolis
784      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
785      - re-enabled use of omega3 (useAbsVorticity)
786    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
787      vector-invariant equations
788      - note: does *NOT* yet use same variable visc. for no-slip BC's.
789    o recoded the lateral boundary conditions for non-hydrostatic w, this time
790      hopefully without new bugs
791      - still to do: biharmonic friction for non-hydrostatic w
792    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
793    o regenerated output for global_ocean_ebm (using -ieee)
794    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
795      of mom_common/
796      - simple re-arrangement of instructions within computing loop
797    checkpoint53d_pre
798    
799    checkpoint53c_post
800    o new version of coupler for AIM+thSIce and Ocean models
801     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
802     - land: change Evaporation of snow
803     - aim with thSIce: fix bug in snow-precip.
804    o changes to calc_gw.F
805     - bug fix for w^2 term near the bottom boundary
806     - (hopefully) improve the lateral slip boundary condtions for use with
807        partial/looped cells
808      - because the bug fix changes two verification experiments anyway (exp5
809        and plume on slope), change the lateral boundary condition from half slip
810        to the value of no_slip_sides
811    o ebm package wasnt quite up to the parallel task. Fixed that.
812    o Adjoint of EBM package + verification
813      * TLM OK
814      * ADM not sufficient accuracy yet (needs further testing)
815    
816    checkpoint53b_post
817    o Commiting new energy balance model to repository
818      * package is pkg/ebm
819      * verif. is verification/global_ocean_ebm
820      * references are in ebm_driver.F
821    C      * X. Wang, P. Stone and J. Marotzke, 1999:
822    C        Global thermohaline circulation. Part I:
823    C        Sensitivity to atmospheric moisture transport.
824    C        J. Climate 12(1), 71-82
825    C      * X. Wang, P. Stone and J. Marotzke, 1999:
826    C        Global thermohaline circulation. Part II:
827    C        Sensitivity with interactive transport.
828    C        J. Climate 12(1), 83-91
829    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
830    C        Destabilization of the thermohaline circulation
831    C        by atmospheric eddy transports.
832    C        J. Climate 7(12), 1870-1882
833    o Will need long integration testing.
834    checkpoint53b_pre
835    
836    o created pkg/mom_common in preparation for variable viscosity code
837    o renamed and split ini_mnc_io
838    o pkg/land: only liquid water can diffuse or run-off
839    o AIM using land: soil wetness availability account for snow
840    o added printMapIncludesZeros to EEPARMS namelist
841    
842    checkpoint53a_post
843    o restore TAMC compatiility for exf_constants.h
844      (no usage of _d in .h)
845    o Additional storing in KPP in an attempt to fix
846      TAMC problem with adjoint of KPP code.
847      (no success...)
848      Identical code works fine with TAF.
849    o Fixed verification/natl_box_adjoint experiments.
850      Initial conditions for Experiments 4 and 5 are now
851      set to "SEAICE_initialHEFF=0", which is more reasonable,
852      and hence gives results closer to that of Experiment 2.
853      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
854    
855    checkpoint53
856    o stable checkpoint with up to date adjoint
857      TLM tests only run for 1st grdchk at the moment. Its unclear if
858      this is a code problem or a problem with resetting code for g_
859      variables that is being autogenerated wrong.
860      Otherwise:
861       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
862       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
863         are both still in chaos following their security messes.
864    
865    checkpoint52n_post
866    o various build (mostly genmake2) changes including:
867      - ability to build/run more easily within Cygwin and MacOS X
868      - more complicated Makefiles with a stronger dependence on Gnu Make
869    o pkg/seaice modifications
870      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
871        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
872        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
873      - changed proxy for geostrophic velocity and updated
874        verification/lab_sea/results/* accordingly
875      - removed ADI dynamic solver from pkg/seaice
876      - replaced all occurrences of 1/CSTICE or 1/CSUICE
877        they caused a segmentation fault under certain circumstances
878      - removed unused field WATR
879    o bug fix in exf-package:
880      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
881         now reflect that.
882    o small fixes in the cal-package:
883      - set reference date to first of January for the 'model'-calendar
884      - failing of cal_CheckDate in cal_FullDate now actually results in a
885        warning
886    o small modifications in exf-package to increase flexibility:
887      - change climtempfreeze from a constant to a runtime parameter that
888        is specified in data.exf_clim (default = -1.9)
889      - introduce runtime parameter windstressmax (default = 2.0) that is
890        specified in data.exf
891    o fix in pkg/thsice:
892      - update Evap (Tsf changes) to be consistent with Latent heat flux
893      - maintain snow precipitation unchanged (even if Tsf >=0).
894     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
895    
896    checkpoint52m_post
897    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
898      this does not change any of the results, because myIter=0 in swfrac always
899      lead to jwtype=2 (the default anyway), but the call makes little sense
900      as a default
901    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
902    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
903      atmospheric model (AIM) to use it ; add a "slab ocean" component.
904    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
905    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
906    o extending useSingleCpuIO option to work with new exch2 I/O format
907      - old-style, missing-tile I/O is still accessible by defining CPP
908        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
909    o monitor package can write to NetCDF files and/or STDOUT
910    o fix re-definition bug in MNC_GRID_INIT_ALL()
911    o doc/api_reference added
912      - a framework for building an API Reference Manual using all
913        the "protex" comments embedded in the code
914      - see pkg/generic_advdiff, pkg/mnc for examples
915    o MNC:
916      - make myThid the last argument for all subroutines
917      - new default for the grid files: NO halos
918      - add useMNC and other run-time flags
919      - separate per-file-group handling of the unlimited dimension
920      - early initialization of MNC w/ flags read at the eeboot stage
921        and lookup tables set in initialize_fixed
922      - write all MNC output to a freshly-created directory
923    o thermodynamics sea-ice (thsice) is now tested with testreport.
924    o test exp. advect_cs: use the standard cs32 grid ; update output.
925    o Added functionality to grdchk:
926      pick global i,j,k position (or nearest wet) where to perform check.
927    
928    checkpoint52l_post
929    o new land formulation:
930      a) use ground enthalpy as prognostic variable to ensure exact
931         energy conservation.
932      b) account for water temperature and for latent heat of freezing
933         in all processes (rain, run-off, ground storage)
934      c) compute surface and ground temperature implicitly.
935    o aim_v23 modification for new land model:
936      a) Treat separately land / ocean / sea-ice surface fluxes
937         to allow implicit computation of land & sea-ice surface temp.
938      b) add snow precipitation.
939    checkpoint52l_pre
940    
941    o fix problem (when 1 tile is empty) in min/max monitor.
942    o fix bug in timeAve (u,vZetatave in common block)
943    o no restoring terms under ice for pkg/seaice
944    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
945    o bug fix for pkg/seaice pickups
946    o change MNC call locations and add coordinate attributes
947    o mask vorticity at the corner ; affects global_ocean.cs output
948    o fix ini_curvilinear_grid ; test CS experiments with mpi
949    o aim.5l_cs: modify sea-ice fraction input file ; update output
950    o exf: Adding simple range check routine for exf fields after read
951    
952    checkpoint52k_post
953    o removed top-level directory "diags"
954      - we migrated these functions to pkg/timeave a long time ago
955    o fixed bug introduced in pkg/monitor
956    o accuracy ctrlprec = 32 insuffient for gradient checks using
957      averaged fields (I/O via cost_averages)
958      -> use ctrl.h in active_file*.F to control I/O precision.
959    o paramter list of CALL ADTHE_MAIN_LOOP
960    o added initial do_the_model_io to ecco
961    o set all ...Freq to zero after cost_final
962      taveFreq, dumpFreq, pChkptFreq
963    o MAIN and ECCO differentiability restored
964    
965    checkpoint52j_post
966    o fix nchklev in tamc.h for global_ocean...
967    o Bringing flow and store directives up-to-date
968    o Really weird thing!
969      call do_the_model_io from the_main_loop with parameters
970      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
971      TAF places a faulty re-call of initialise_varia
972      after cost_final call which should not be there!
973    checkpoint52j_pre
974    
975    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
976      error messages
977    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
978    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
979      debug output
980    o modfied mdsio_writefield.F to handle non-global files under exch2
981    o update AIM Cubed-Sphere exp (aim.5l_cs):
982      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
983    o update AIM Equatorial Channel exp:
984      use standard aim_v23 pkg and change the SST fields to be more realistic.
985    o globalFile now works with exch2
986    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
987      mon_vort3.F to make exch2 friendly with >1 tile per cube face
988    o limit timeave output for hi-res integrations
989    
990    checkpoint52i_post
991    o removed CPP_EEOPTIONS.h from verification/*/code
992    o updated the tiling for global_ocean_pressure
993    checkpoint52i_pre
994    
995    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
996      the old pkg/aim).
997    
998    checkpoint52h_pre
999    o shortened offending lines in exch2_send_rx?.template
1000    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1001    o genmake2: add build & execute test for NetCDF code
1002    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1003      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1004    o added useSingleCPUIO flag to monitor.F and mon_out.F
1005    o added temporary hack for sea-ice dynamics on the cube:
1006      metric terms are ignored and it is assumed that
1007      there is no sea-ice on cube faces 1, 2, 4, and 5.
1008    
1009    checkpoint52f_post
1010    o added exch2 cube routines to pkg/exch2
1011    o modified hs94.cs-32x32x5 to use it
1012    o added new grid files to hs94.cs-32x32x5
1013    checkpoint52f_pre
1014    
1015    checkpoint52e_post
1016    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1017      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1018    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1019      to work with implicit vertical advection and AB ;
1020    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1021    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1022     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1023    checkpoint52e_pre
1024    
1025    o fix bug in impldiff when Nr=1 or Nr=2.
1026    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1027    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1028    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1029      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1030    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1031    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1032    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1033    
1034    checkpoint52d_post
1035    o re-tiled many expts to allow comparison in multi-processor mode
1036      - updated output accordingly
1037      - changed hs94.128x64x5 to use intial T from file rather than use the
1038        random number generator
1039    o add infrastructure in model routines for fizhi and gridalt packages
1040    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1041    o changes to permit hi-res, cubed-sphere, configuration
1042      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1043      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1044      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1045        of surface winds for the cube
1046      (A verification experiment, based on global_ocean.cs32x15, but with
1047       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1048       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1049       complete with example surface forcing files and matlab scripts to look
1050       at the output and compare it with that of global_ocean.cs32x15.)
1051    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1052       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1053       to conform to the common rule.
1054    o check-in the first version of the coupler + interfaces for multi-components
1055       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1056       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1057       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1058       - ocean and atmos. share the same horizontal grid (no interpolation).
1059       - exchanges between component and coupler is done in forward_step
1060    o new verification experiment, cpl_aim+ocn:
1061       coupled ocean - AIM atmosphere on cs32 grid.
1062    
1063    checkpoint52d_pre
1064    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1065    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1066    
1067    checkpoint52c_post
1068    o Fixing OPTIONS files for use of exf:
1069      - ALLOW_ECCO not needed
1070      - ECCO_CPPOPTIONS.h should not be included from
1071        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1072        as has been the case in the past
1073      - All cal/exf related options are currently set in
1074        single header file. Should remain so until we
1075        agree on a consistent new policy.
1076    o Removed all CPP options for cal package.
1077      cal has no more CPP options.
1078    o modified STOREs in GAD_ADVECTION
1079    o corrected key comp. for passkey
1080    
1081    checkpoint52b_post
1082    o new version: "thsice" of thermodynamic sea-ice pkg:
1083     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1084     - modify fluxes but do not change theta directly;
1085     - light cleaning of bulk_force pkg (still needed with thsice).
1086     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1087       + output_thsice.txt to test thsice & bulk_force pkgs.
1088    o put back grid & coriolis monitor output.
1089    checkpoint52b_pre
1090    
1091    o call "do_the_model_io" at the beginning (=> dump initial state)
1092    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1093    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1094      (need info on NUMBER_OF_PTRACERS)
1095    o missing PTRACERS headers in some routines
1096    o default tamc.h in pkg/autodiff supposed to crash
1097      to ensure proper customization
1098    
1099    checkpoint52a_post
1100    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1101      - moved surfaceTendencyTice from pkg/seaice to main code
1102      - subroutine FREEZE_SURFACE now limits only surface temperature
1103        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1104        => new output.txt for global_ocean.cs32x15 & global_with_exf
1105      - keep the old version of FREEZE for backward compatibility;
1106        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1107      - corresponding modifs for TAF directives
1108    o added surface flux output variables to TIMEAVE_STATVARS
1109    o time-averaged output for pkg/ptracers
1110    o fix problem with ECCO-related divided adjoint
1111      snapshot file was missing some ad-variables,
1112      but no warning issued by TAF
1113    
1114    checkpoint52a_pre
1115    o some bug fixes for #undef REAL4_IS_SLOW
1116    
1117    checkpoint52 = ecco_c52_e35
1118    o after testing adjoints of checkpoint51u_post
1119    
1120    checkpoint51u_post
1121    o this is the post-merge tag of the ecco-branch
1122      (needs another clean checkout and re-testing)
1123    o various natl_box_adjoint configs and results
1124      but no input fields
1125    o obcs adjoint not yet merged!
1126    o adding ECCO global 1x1 and 2x2 degree configs
1127    o updated/extended some store directives for seaice
1128    o pkg/ecco now containes ecco-specific part of cost function
1129    o top level routines the_main_loop, forward_step
1130      supersede those in model/src/
1131      previous input data.cost now in data.ecco
1132      (new namelist ecco_cost_nml)
1133    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1134    
1135    checkpoint51t_post
1136    o this is the pre-merge tag of the ecco-branch
1137    
1138    checkpoint51s_post
1139    o cleanup: removed various obsolete #define-s
1140    o pkg/grdchk
1141      - renamed 'ph-grd 3' to 'grad-res'
1142      - merged from ecco-branch
1143        (remaining bug fixes for obcs gradient checks)
1144      - additional high-precision output for testreport
1145        (grep for 'precision_grdchk_result')
1146    
1147    checkpoint51r_post
1148    o cleaned up or removed CPP_OPTIONS.h files
1149    o updated results for some of the tests to reflect the new
1150      optfiles (-ieee: -O0 instead of -O3)
1151    
1152    checkpoint51q_post
1153    o cd_code:
1154      - moved cd_scheme.F -> cd_code_scheme.F
1155      - separate read_checkpoint from cd_code_ini_vars.F
1156      - separated cd_code part from write_checkpoint
1157      - updated AD_SOURCE, generated .flow
1158      - added CD_CODE_VARS.h to the_main_loop
1159      - Moving cd_code specific store dir.s to pkg/cd_code
1160    o ctrl package totally restructured
1161      - pack/unpack now optional and decoupled from
1162        xx_/adxx_ I/O
1163      - ctrl_pack/unpack cleaned
1164        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1165      - confined inclusion of AD_CONFIG.h to where necessary.
1166    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1167    
1168    checkpoint51p_post
1169    o create initial cd_code package
1170      - WARNING: the initialization of fields within packages
1171        is broken because INI_FIELDS (where READ_CHECKPOINT is
1172        called) is called *before* PACKAGES_INIT_VARIABLES.
1173        This seems to be backwards since
1174        1) its important to initially zero the entire field including
1175           the "halo" region
1176        2) zeroing needs to be done *before* reading pickup info
1177           and the pickup call might or might not happen in any
1178           particular run
1179      - this needs an overhaul for R2
1180    o cleanup verification/*/code/GMREDI_OPTIONS.h
1181    o cleanup testreport
1182    
1183    checkpoint51o_post
1184    o bringing AD-related verif's up to date with genmake2
1185      - carbon/
1186      - global_ocean.90x40x15/
1187      - hs.94.1x64x5/
1188      - (front_relax/ )
1189    o (more) consistent directory structure for AD-related verif.'s
1190    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1191    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1192    o bug fix in find_alpha.F for MDJWF:
1193      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1194        change rho -> rho-rhoConst
1195      - replace call find_rho to find_rhonum
1196    o initialisation of rFlx extended to full array (required by TAF)
1197      and shifted to thermodynamics
1198    o removed PTRACERS.h in ptracers routine
1199    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1200    o Correcting initialisations for fVerU, fVerV.
1201    o helping TAF to recognize dependency on kUp for
1202      fVerU, fVerV
1203    o Replacing delZ by delR in pkg/ctrl/
1204    checkpoint51o_pre
1205    
1206    o undid all of cp51 pending some cleanups and discussion
1207    o added the [#include "AD_CONFIG.h"] statement to all files that need
1208       it for adjoint/tl #defines
1209     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1210     o removed tools/genmake since it no longer works
1211    
1212    checkpoint51n_post
1213    o modifications to make FREEZE flux visible to pkg/kpp
1214      - moved surfaceTendencyTice from pkg/seaice to main code
1215      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1216      - subroutine FREEZE now limits only surface temperature
1217        (this means new output.txt for global_ocean.90x40x15,
1218         global_ocean.cs32x15, and global_with_exf)
1219    o added surface flux output variables to TIMEAVE_STATVARS
1220    
1221    checkpoint51n_pre
1222    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1223    o added [#include "AD_CONFIG.h"] to all files that use the following
1224      defines:
1225      - ALLOW_ADJOINT_RUN
1226      - ALLOW_TANGENTLINEAR_RUN
1227      - ALLOW_ECCO_OPTIMIZATION
1228    
1229    checkpoint51m_post
1230    o incorporating changes to get TAMC/TAF working in genmake2
1231      - added new TAMC/TAF targets to the Makefile
1232      - various cleanups related to package handling
1233      - these changes should have no impact on the forward model
1234    
1235    checkpoint51l_post
1236    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1237     - faster algorithm for cal_addtime.F
1238     - higher precision arithmetic, where needed
1239     - pkg/exf *startdate variables changed from calendar date to
1240       model integration time
1241    
1242    checkpoint51l_pre
1243    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1244    o enable to apply restoring on S & T only in a latitude band.
1245    o update output (external_forcing_surf modif. change truncation errors)
1246       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1247    
1248    checkpoint51k_post
1249    o change default to: useNHMTerms=.FALSE.
1250     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1251       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1252     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1253        exp1, ideal_2D_oce
1254     - change data file of oceanic exp (leave the results unchanged for now)
1255       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1256    o set gravitySign automatically according to the vertical coordinate used
1257      (and change sign: back to "logical" value: +1 when R increases downward)
1258    o added an include barrier to the default CPP_OPTIONS.h and
1259      removed the #include "PACKAGES_CONFIG.h" from it
1260    o fix a bug in mom_fluxform (from chk51j_post)
1261    
1262    checkpoint51j_post
1263    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1264    o adjusted some flow directives (dynamics, thermodynamics)
1265    o added cubed-sphere case to test cost function
1266    o heckpoint_lev?_directives.h now include
1267      pkg-specific directives, whenever those are enabled.
1268    o Moving pkg-specific flow directives to corresponding pkg
1269      Moving pkg-specific differentiation list to corresponding pkg
1270      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1271      ---> conventions are
1272           - pkg_ad.flow
1273           - pkg_ad_diff.list
1274           - pkg_ad_check_lev?_dir.h
1275    
1276    checkpoint51i_post
1277    o merge of the branch-genmake2
1278      - knowingly breaks the older genmake
1279      - automatic generation of all ALLOW_${PKG_NAME} defines
1280      - new testreport supersedes older testscript
1281    o large number of package inclusion and header cleanups
1282    checkpoint51i_pre
1283    
1284    o new output for adjoin of global ocean vector invariant
1285    o fix for checkpoint of thermodynamic seaice and bulk_force
1286    o Steph gchem various cleanups
1287    
1288    checkpoint 51h_pre
1289    o fixed some single quotes
1290    o modify gchem pkg to be more versatile
1291    o modifications to clean up dic pkg
1292    o add pkg/cfc
1293    
1294    checkpoint51g_post
1295    o provide links for ARPACK and ADM*TLM
1296    o start removing verification/vero/
1297    o update AD-related stuff
1298      (in particular some IF-statements in model/src/ routines)
1299    o adding to verification/global_ocean.90x40x15/ adjoint of
1300      vector invariant setup
1301    
1302    checkpoint51f_post
1303    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1304    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1305      of tracer Green's fucntions for ocean inversion project.
1306    
1307    checkpoint51f_pre
1308    o Added on-the-fly spatial interpolation capability
1309        "USE_EXF_INTERPOLATION" to pkg/exf.
1310      - This is a temporary Cartesian-grid hack until
1311        the super-duper ESMF coupler becomes available.
1312      - See verification/global_with_exf/README for usage example.
1313      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1314        flags and modified pkg/seaice accordingly.
1315    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1316        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1317        non-local transport term.
1318    
1319    checkpoint51e_post
1320    o pkg/mom_vecinv:
1321      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1322      - add time-ave diagnostic of vorticity advection.
1323    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1324    o atmospheric geopotential: - include water vapor effect;
1325                                - use p^kappa in p* scaling.
1326    o land pkg: read initial state from files.
1327    o AIM : add stratospheric drag in the upper level
1328    
1329    checkpoint51d_post
1330    o change function ILNBLNK (=> last non-blank char.) to return zero
1331      (instead of the string length) when the string. char is empty
1332    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1333    o modif's to restore TAMC compatibility
1334      - avoid "_d" constructs in PARAMETER declarations
1335      - avoid interrupting lines by comment lines
1336    o Use cluster local disks for purely local I/O
1337      vs. globally visible disks needed for ctrl stuff
1338      (merged from ecco-branch)
1339      - new active_file_loc... and mdsio_..._loc routines
1340      - affected packages: autodiff, ctrl, grdchk, mdsio
1341    
1342    checkpoint51c_post
1343    o introducing integer flag debugLevel
1344      - debLevZero: suppress all output
1345      - debLevA: standard
1346      - debLevB: equivalent to current debugMode=.TRUE.
1347    o introducing pathname variable mdsioLocalDir for mdsio
1348      that can be specified at runtime
1349      (relevant for cluster I/O to local disk)
1350    `
1351    >>>checkpoint51b_post
1352    adjoint of ptracers
1353    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1354    o extended state in checkpoint_lev?, etc.
1355    o alternative ctrl/cost with tr1 or ptracer
1356    o new comlev1_bibj_ptracers
1357    o new ptracers.flow
1358    o made ptracers_forcing same as external_forcing_s
1359    o added verification for adjoint with ptracers
1360      - adm. grdchk fail so far
1361      - tlm. grdchk OK
1362      - checked tapelev/comlev recomputations: OK
1363    <<<checkpoint51b_pre
1364    
1365    checkpoint51a_post
1366    o added code for biogeochemistry package
1367      - new pkgs: dic, gchem
1368      - new subroutine in ptracers
1369    o modify code for biogeo packages
1370      - in model/src and pkg/ptracers
1371    
1372    checkpoint51
1373    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1374      - autodiff, ctrl, exf, grdchk, seaice
1375      kept separate packages
1376      - cost, ecco, obcs
1377    o updating verification/internal_wave, verification/lab_sea
1378      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1379    
1380    checkpoint50i_post
1381    o Preparing next differentiable checkpoint and sync
1382      of MAIN vs. ecco-branch
1383      - 1st step: this one is differentiable
1384      - 2nd step: next(! not this) checkpoint will have updated packages
1385                  from ecco-branch)
1386    
1387    checkpoint50h_post
1388    o new package "land": provide surface BC for AIM.
1389    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1390    o AIM: use true log-P extrapolation for near surface temp (= as in
1391        F.Molteni paper) ; update aim.5l_cs output.
1392    o New variable in PARM03 for more flexible pickups
1393    o somewhat cleaned package initialisation sequence for
1394      ctrl/ cost/ ecco/ in packages_... routines
1395    
1396    checkpoint50g_post
1397    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1398      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1399      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1400        made the default because of faster convergence than ADI
1401    
1402    checkpoint50f_post
1403    o exf totally restructured
1404      - replaced all exf_set_ routines by one generic exf_set_gen.F
1405        and made sure it's still differentiable
1406      - split exf_getffields.F into new exf_bulkformulae.F
1407      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1408      - updated adjoint/makefile and relevant verif. accordingly
1409    
1410    checkpoint50f_pre
1411     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1412          + change Evap over land. (update aim.5l_cs output)
1413     o added missing .cvsignores and made uniform across expts
1414     o changed configuration of tidal_basin_2d expt
1415     o added pkg/debug functions for tracing code in fatal crashes
1416     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1417     o new fn in pkg/monitor to stop model if solution grows too big
1418     o removed lots of single quotes from comments
1419    
1420    checkpoint50e_post
1421    o make KPP work with PTRACERS
1422     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1423       nearly a copy of kpp_transport_s
1424     - there is no analogue to SurfaceTendencyS, so I have to use
1425       gPtr(of the surface layer) instead
1426    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1427    checkpoint50e_pre
1428    
1429    checkpoint50d_post
1430    o change kpp output from multiple-record state files to single-record state
1431      files analogous to write_state.F
1432    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1433      analogous to the cg2d-related output.
1434    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1435      so that writing to internal file fn (with length 512) fails.
1436    checkpoint50d_pre
1437    
1438    checkpoint50c_post
1439    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1440    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1441    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1442    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1443    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1444    
1445    checkpoint50c_pre
1446    Merging from release1_p13:
1447    o bug fix for pkg/seaice dynamic solver
1448    o Added SEAICE_initialHEFF to pkg/seaice
1449    
1450    checkpoint50b_post
1451    o store u*,v* in gU,V instead of in guNm1,gvNm1
1452    o in order to put the momForcing out of the Adams-Bashforth:
1453      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1454      to timestep.F
1455    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1456    o re-generate output for highly sensitive test-exp:
1457       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1458    
1459    checkpoint50b_pre
1460    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1461    o corrected CPP option mismatch in exf_Bulk... functions for case
1462      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1463    
1464    checkpoint50a_post
1465    o Bug fix for merging between c50 and KPP.
1466      ikey was passed from thermodynamics to kpp_calc via
1467      common block rather than being recomputed in kpp_calc,
1468      in contradiction with new key itdkey.
1469      New key ikppkey created, and tamc.h headers updated.
1470    
1471    checkpoint50
1472    - 2nd step of merge with ecco-branch:
1473      merge changes in ecco-branch back into main trunk
1474    - bug fix in find_alpha
1475    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1476    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1477    - merged some sliced AD support routines
1478    
1479    checkpoint49
1480    merged from ecco-branch:
1481    o exf:
1482      - Enable initialisation of forcing fields to constant
1483        (runtime) values.
1484      - in exf_getffields.F
1485        Reduce i-/j-loop to interior domain, discarding overlaps.
1486        That also fixes wrong TAF-key computations for key_1, key_2
1487        with bulf formulae.
1488      - exf_init.F modify #ifdef for exf_init_evap
1489      - exf_getffieldrec.F, ctrl_getrec.F
1490        The following INT-usages are not safe:
1491          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1492          fldcount = int(fldsecs/fldperiod) + 1
1493        and were modified.
1494    o autodiff: checkpoint_lev...
1495      - updated storing for bulk formulae (some arrays were missing)
1496      - added state for seaice package
1497      - synchronized with main branch
1498    o DIVA:
1499      Modif.s in
1500      - the_main_loop.F
1501      - the_model_main.F
1502      and added cost_final_restore.F cost_final_store.F
1503      o With these changes, it is possible to fully separate
1504        the first forward run to compute the cost function (mdthe_main_loop)
1505        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1506        into separate model executions.
1507        This enables better tuning of DIVA to given queue sizes.
1508      o Loss of cost function value in consecutive DIVA runs is
1509        fixed by storing to 'costfinal' file.
1510      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1511        beginning/end of adjoint integration is accounted for.
1512      The current changes apply to TAF-1.4.26.
1513      TAF has one remaining bug, requiring one manual change
1514      (see MITgcm manual).
1515    o cal: synchronized between MAIN and ecco-branch
1516    
1517    checkpoint48i_post
1518    o Changes to restore differentiability of code w.r.t. previous tag
1519      (mostly adding new routines to make list and replacing
1520      pressure by totPhiHyd).
1521    o Updated and merged grdchk package
1522      - has both ADM and TLM checks
1523      - works for single- and multi-proc.
1524      - output cleaned
1525      - worked successfully for parallel DIVA
1526    o genmake:
1527      - Adding -platform=SP4
1528      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1529    o Modif. for DIVA:
1530      ctrl_unpack should not be called in intermediate DIVA interval.
1531      (similar thing would apply for active files such as
1532      tbar, sbar, psbar, which should not be reinitialised;
1533      only relevant for ecco-branch)
1534    
1535    checkpoint48h_post
1536    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1537    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1538    o Added SEAICE_initialHEFF to pkg/seaice
1539    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1540    
1541    checkpoint48g_post
1542    --- EOS:
1543    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1544      store total Potential in totPhyHyd for diagnostics & EOS.
1545    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1546    --- Pressure/geopotential gradient:
1547    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1548    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1549      ( changes results of global_ocean_pressure )
1550    o NLFS + z-coord.: add eta*Rho' contribution.
1551    o accurate phiHyd when using interface-W at the middle between 2 centers
1552     ( changes results of ideal_2D_oce )
1553    o includes r* 2nd term in potential gradient.
1554    
1555    checkpoint48f_post
1556    Merging from release1_p12:
1557    o Modifications for using pkg/exf with pkg/seaice
1558      - improved description of the various forcing configurations
1559      - added basic radiation bulk formulae to pkg/exf
1560      - units/sign fix for evap computation in exf_getffields.F
1561      - updated verification/global_with_exf/results/output.txt
1562    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1563      (SBO) core products, including oceanic mass, center-of-mass,
1564      angular, and bottom pressure (see pkg/sbo/README.sbo).
1565    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1566      to avoid negative values in shallow regions.
1567      - updated verification/natl_box/results/output.txt
1568      - updated verification/lab_sea/results/output.txt
1569    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1570    o Added useSingleCpuIO option (see PARAMS.h).
1571    o Updated useSingleCpuIO option in mdsio_writefield.F to
1572      work with multi-field files, e.g., for single-file pickup.
1573    o pkg/seaice:
1574      - bug fix in growth.F: QNET for no shortwave case
1575      - added HeffFile for specifying initial sea-ice thickness
1576      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1577    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1578      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1579    o pkg/seaice:
1580      - adjoint-friendly modifications
1581      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1582    
1583    checkpoint48e_post
1584    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1585    o dynamics: change definition of computational domain & adapt mom_fluxform
1586      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1587    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1588        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1589        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1590        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1591        inverted_barometer solid-body.cs-32x32x1
1592      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1593    
1594    checkpoint48d_post
1595    o in preparation for r*:
1596     a) use pre-computed gradient of hydrostatic potential:
1597        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1598     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1599        => affects results of glob_oce_pressure (different truncation error)  
1600      update output.txt of ideal_2D_oce & global_ocean_pressure
1601    
1602    checkpoint48d_pre
1603    o in preparation for r*:
1604      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1605      pass the 2 comp. of the grad. as arguments to momentum S/R.
1606      but for the moment, only used if it does not change the results.
1607    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1608    
1609    checkpoint48c_post
1610    Modifications in treatment of initial flux forcing controls
1611    to avoid extra storing of flux fields.
1612    
1613    checkpoint48c_pre
1614    o Added tidal_basin_2d experiment (currently 1D!)
1615    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1616    
1617    checkpoint48b_post
1618    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1619     (modification to pressure gradient not yet implemented)
1620    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1621      (for U & V) that are used for vertical advection of momentum.
1622    
1623    checkpoint48a_post
1624    o In preparation for r*, use temp. array to compute vertical transport
1625       in flux-form momentum pkg. => change results of few test-exp.
1626      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1627                        lab_sea, natl_box & plume_on_slope
1628    
1629    checkpoint48
1630    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1631    
1632    checkpoint47j_post
1633    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1634    o moved adexch from forward_step to addummy_in_stepping
1635    o added exch in ctrl_map_...
1636    o aveFreq.=0. at end of cost_final to avoid overwrite in
1637      reverse checkpointing loop
1638    o Yet more changes in gmredi:
1639      * adgmredi_calc_tensor
1640        avoiding all recomputation of gmredi_slope_limit
1641      * adgmredi_x/y/rtransport
1642        added flag for excessive storing to avoid recomp. of
1643        u/v/rtans, dTdx/y/z
1644        -> this is not really necessary and very memory-consuming
1645      * adgmredi_slope_psi:
1646        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1647      * gmredi_slope_limit
1648        re-activated full calculation of taperfct for case 'ac02'
1649    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1650    
1651    checkpoint47i_post
1652    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1653    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1654      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1655    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1656    o gmredi: fix few bugs.
1657    
1658    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1659    This will be a good checkpoint to plug into the ecco-branch.
1660    o few modif.'s to get latest version adjointed
1661      (mainly kick out code in ini_linear_phisurf)
1662    o modif's to run adjoint with exactConserv
1663    o case GM_BOLUS_ADVEC should be cleaned
1664      S/R gmredi_slope_psi should be cleaned
1665    o verification/carbon now has exactConserv=.TRUE.
1666    
1667    checkpoint47g_post
1668    o time-average AIM output: becomes independent from statvars time-average
1669      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1670    o After TAF bug fix:
1671      Tested adjoint of gmredi package.
1672      Tests were done with checkpoint47 rather than with latest
1673      checkpoint47f_post since the latter is broken for the adjoint
1674      verification/carbon/ contains both ADM and TLM gradient checks.
1675    Here they are, before they get changed/lost/stolen.
1676    Mostly modif.'s to fix numerical sensitivities.
1677    Gradient checks OK for
1678    - GM_taper_scheme:
1679      * clipping
1680      * ac02
1681      * linear
1682      * glw91
1683      * dm95
1684      * ldd97
1685    - GMREDI_OPTIONS:
1686      * GM_VISBECK_VARIABLE_K
1687      * GM_NON_UNITY_DIAGONAL
1688      * GM_EXTRA_DIAGONAL
1689      * GM_BOLUS_ADVEC
1690    in conjunction with data.gmredi parameters to be checked in
1691    in a few minutes under verification/carbon/code/
1692    
1693    checkpoint47f_post
1694    Merging from release1_p10:
1695    o modifications for using pkg/exf with pkg/seaice
1696      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1697        and SEAICE_EXTERNAL_FLUXES
1698      - pkg/exf CPP options EXF_READ_EVAP and
1699        EXF_NO_BULK_COMPUTATIONS
1700      - usage examples are Experiments 8 and 9 in
1701        verification/lab_sea/README
1702      - verification/lab_sea default experiment now uses
1703        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1704    
1705    checkpoint47e_post
1706    o created a tag prior to creating a branch
1707    
1708    checkpoint47d_post
1709    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1710      at the bottom boundary had an erroneous half slip boundary condition
1711    o added bottom drag and no slip boundary condition capabilities to
1712      oceanic pressure coordinates code
1713    o added new verification experiment global_ocean_pressure, this experiment is
1714      also described in the tutorial section of the manual
1715    checkpoint47d_pre
1716    
1717    checkpoint47c_post
1718    o Added a verification experiment for a global cubed-sphere ocean run
1719      -  verification/global_ocean.cubed32x32x30
1720      -  uses pkg/therm_seaice and pkg/bulk_forcing
1721    
1722    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1723    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1724      when using P-coordinate; only implemented for atmospheric config.
1725    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1726      NOTES: requires option NONLIN_FRSURF to be "#define".
1727    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1728    
1729    checkpoint47b_post
1730    Merging from release1_p9:
1731    o pkg/seaice
1732      - removed GOTO's and added taf directives
1733      - double precision constants to reduce the g77 (Linux)
1734        to F77 (SGI) differences reported in release1_p8
1735    o tools/genmake
1736      - added SGI options
1737    o verification/testscript
1738      - updated to that of checkpoint47a_post
1739    o verification/global_ocean.90x40x15/input/eedata
1740      - modified for SGI f77 compatibility
1741    o verification/lab_sea
1742      - added description of sea-ice model
1743      - added missing matlab routines
1744      - added test of thermodynamics parallelization
1745    
1746    checkpoint47a_post
1747    o new pkg: aim_v23
1748     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1749       for now, keep the same surface forcing as before.
1750     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1751     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1752     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1753    o add diagnostic of surface correction term in monitor output
1754    
1755    o bulk_force and therm_seaice
1756    - Two packages:  bulk_force (Bulk forcing)
1757      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1758    - Earlier integration from Stephaine Dutkiewicz
1759      and Patrick Heimbach.
1760    - Two ifdef statements for compile time,
1761       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1762    
1763    checkpoint47
1764    differentiable version of checkpoint46n_post
1765    o bug fix in quasihydrostaticterms
1766    o * "clean" adjoint code (in terms of extensive recomputations)
1767        can now be obtained for all GMREDI options (i.e. for
1768        - GM_VISBECK_VARIABLE_K
1769        - GM_NON_UNITY_DIAGONAL
1770        - GM_EXTRA_DIAGONAL
1771        - GM_BOLUS_ADVEC )
1772      * However, wrong gradient check problem remains unsolved.
1773      * New CPP options have been introduced for different
1774        tapering schemes
1775    o external_fields_load now part of differentiation list
1776    o pressure needs multiple storing;
1777      would be nice to have store_pressure at beginning or
1778      end of forward_step, e.g. by having phiHyd global (5-dim.)
1779      (NB: pressure is needed for certain cases in find_rho,
1780      which is also invoked through convective_adjustment).
1781    o recomputations in find_rho for cases
1782     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1783    o #define ATMOSPHERIC_LOADING should be differentiable
1784    o ini_forcing shifted to begining of initialise_varia
1785    o Incorporating QNVS line search routines into MITgcm
1786      (this is separate code, and therefore not under pkg)
1787      lsopt/, optim/
1788    o Updated verification/carbon/
1789      - #define GM_VISBECK_VARIABLE_K
1790      - GM_taper_scheme    = 'ldd97'    
1791    
1792    checkpoint46n_post
1793    Merging from release1_p8:
1794    o verification/natl_box:
1795      updating new external_fields_load routine
1796    o New package: pkg/seaice
1797      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1798      The sea-ice code is based on Hibler (1979-1980).
1799      Two sea-ice dynamic solvers, ADI and LSR, are included.
1800      In addition to computing prognostic sea-ice variables and diagnosing
1801      the forcing/external data fields that drive the ocean model,
1802      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1803      The implied surface heat flux is then stored in variable
1804      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1805      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1806      non-local transport term.  Because this call precedes model
1807      thermodynamics, temperature under sea-ice may not be "exactly" at
1808      the freezing point by the time theta is dumped or time-averaged.
1809      N.B.: fairly large differences in accuracy occur across
1810            different platforms/compilers; comparison between
1811            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1812            generated output gives:
1813       T           S           U           V
1814      C D M    c        m  s        m  s        m  s        m  s
1815      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1816      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1817      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1818    
1819      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1820    o GAD:
1821      - generated new common blocks to account for call of
1822        same gad routines with differing traceridentities
1823        (needed to modify tracerIdentity indices in GAD.h)
1824      - generated separate common blocks for case useCubedSphereExchange
1825        (Department of Futurology)
1826      - parameter lists to gmredi_?transport: added tracerIdentity
1827      - added new key indices to tamc.h
1828    o external_fields_load:
1829      - added this routine to TAF list
1830      - needed to make some common blocks global and additional storing
1831        along the same lines as exf package (checkpoint_lev?_directives.h)
1832    o exf:
1833      updated external forcing package
1834      - bug fixes carried over from ecco-branch
1835        (missing OBCS_OPTIONS.h in two routines)
1836      - enable easy to use "no forcing".
1837      - added exf I/O for atmospheric loading
1838      - added exf I/O for runoff data
1839      - transfered scaling between exf <-> MITgcm to exf namelist
1840    o Adding new verification experiment global_with_exf.
1841      This verification experiment is almost identical to the
1842      global_ocean.90x40x15 experiment, except that it uses
1843      the exf (and cal) package instead of the
1844      external_fields_load routine (cf README file).
1845    
1846    checkpoint46m_post
1847    o modified testscript to return -- when there are no lines of "%MON" output
1848    o added new flag "quasiHydrostatic" for QH mode
1849      and new routine quasihydrostaticterms()
1850    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1851      New routine: mom_u_coriolis_nh()
1852    o fixed sign of non-hydrostatic metric terms in u and v equations.
1853      Depend on correct sign of gravitySign.
1854    o added work.pc* to .cvsignore in aim directories using ifc
1855    o introduced flag for controllin non-hydrostatic metric terms
1856    o removed gravitySign from PARM04
1857    o switched to g77/ifc from pgf77 in aim experiments
1858    
1859    checkpoint46l_post
1860    o made convective adjustment work with pressure coordinates:
1861     - changed the direction of k-loop in convective_adjustment.F for the
1862       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1863     - adjusted the reference pressure k-index in convective_adjustment.F
1864     - adjusted the convection condition in convect.F (in analogy to
1865       calc_ivdc.F)
1866     - convective_adjustment no longer computes anything on the halos
1867     - removed the warnings about negative salinity from find_rho.F and
1868       find_alpha.F; instead the new routine look_for_neg_salinity, called
1869       at the beginning of find_rho, find_alpha, and find_beta, does a
1870       check of the entire slice, if CPP-option
1871       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1872    checkpoint46l_pre
1873    
1874    checkpoint46k_post
1875    o fixed the verification/global_ocean.90x40x15 experiment:
1876     - new bathymetry (the world according to A., JMC, and M.)
1877     - new initial fields and forcing fields (*.bin files)
1878     - new POLY3.COEFFS (for the next release one should switch to a full
1879       equation of state: JMD95P or MDJWF)
1880     - fixed several errors and redundancies in the data file
1881     - experiment uses looped cells
1882     - added matlab directory with diagnostic scripts for plotting of output
1883    
1884    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1885     - read AIM physics parameters from a file (data.aimphys)
1886     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1887    
1888    checkpoint46j_post
1889    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1890    o move wVel computation at the end of the time step, in S/R integr_continuity
1891    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1892    o update timeave pkg for wVel diagnostic.
1893    checkpoint46j_pre
1894    
1895    checkpoint46i_post
1896    o Clean up AIM package (and keep the results unchanged):
1897      include CPP_OPTION and use IMPLICT NONE in all routines ;
1898      declare all the variables _RL ; use _d 0 for all numerical constants.
1899      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1900    
1901    checkpoint46h_post
1902    o cleaned up the use of rhoNil and rhoConst.
1903      - rhoNil should only appear in the LINEAR equation of state, everywhere
1904        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1905        and the dynamical equations are all divided by rhoConst
1906    o introduced new parameter rhoConstFresh, a reference density of fresh
1907      water, to remove the fresh water flux's dependence on rhoNil. The default
1908      value is 999.8 kg/m^3
1909    o cleanup up external_forcing.F and external_forcing_surf.F
1910      - can now be used by both OCEANIC and OCEANICP
1911    checkpoint46h_pre
1912    
1913     Added code to convert surface volume flux (fresh water) into
1914     a mass flux when using P coordinates in the ocean (OCEANICP).
1915     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1916    
1917    checkpoint46g_post
1918    o Include a new diagnostic variable phiHydLow for the ocean model
1919      - in z-coordinates, it is the bottom pressure anomaly
1920      - in p-coordinates, it is the sea surface elevation
1921      - in both cases, these variable have global drift, reflecting the mass
1922        drift in z-coordinates and the volume drift in p-coordinates
1923      - included time averaging for phiHydLow, be aware of the drift!
1924    o depth-dependent computation of Bo_surf for pressure coordinates
1925      in the ocean (buoyancyRelation='OCEANICP')
1926      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1927        Theta, Salinity, and Pressure in the parameter list. This routine is
1928        presently contained in find_rho.F. This routine does not give the
1929        correct density for 'POLY3', which would be a z-dependent reference
1930        density.
1931    o cleaned up find_rho
1932      - removed obsolete 'eqn' from the parameter list.
1933    o added two new verification experiments: gop and goz
1934      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1935    checkpoint46g_pre
1936    
1937    checkpoint46f_post
1938    o Enable tangent linear (forward mode) gradient checks:
1939      - extended active file handling to g_... files
1940      - added TANGENT_SIMULATION to theSimulationMode
1941      - extended grdchk package accordingly
1942    o added tangent linear setup in verification/carbon/code_ftl
1943    o added adjoint setup in verification/front_relax/code_ad
1944    
1945    checkpoint46e_post
1946    o Added new equation of state -> MDJWF
1947      - EOS of McDougall et al., 2002, JAOT, submitted
1948      - caveat: the equation of state is only valid for a smaller (more
1949        realistic?) range of values than JMD95P/Z and UNESCO
1950      - added masks to the calculation of pressure in store_pressure
1951      - added more check values for density in check_eos (ini_eos.F), some of
1952        the old check values are out of the range of the MDJWF-eos, so don't
1953        expect perfect matches for those
1954    checkpoint46e_pre
1955    
1956    checkpoint46d_post
1957    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1958      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1959      case of pressure coordinates. eosType='JMD95Z' in
1960      combination with buoyancyRelation='OCEANICP' now causes an error.
1961    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1962      in find_alpha/beta.
1963    checkpoint46d_pre
1964    
1965    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1966      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1967    
1968    checkpoint46c_post
1969    o Changes necessary for ocean in p-coordinates
1970     -  Added new buoyancy relation = 'OCEANICP'
1971     -  Added new parameters = gravitySign (this used to be contained inside
1972        the factor dRdZ which I added when we first switched to R coordinates).
1973     X GM/Redi is not compatible (yet)
1974     X bottom drag and no-slip need to be debugged.
1975    checkpoint46c_pre
1976    
1977    checkpoint46b_post
1978    o Added new equation of state -> JMD95Z and JMD95P
1979      - EOS of Jackett and McDougall, 1995, JAOT
1980      - moved all EOS parameters into EOS.h
1981      - new routines ini_eos.F, store_pressure.F
1982    o Added UNESCO EOS, but not recommended because it requires
1983      in-situ temperature (see JMD95)
1984    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1985      unesco.f to be used with POLY3
1986    checkpoint46b_pre
1987    
1988    checkpoint46a_post
1989    o Added (atmospheric) pressure loading
1990      - new field in FFIELDS.h, etc...
1991      - new cpp flag ATMOSPHERIC_LOADING
1992    o Changed hFacC to _hFacC in calc_phi_hyd.F
1993    o Added SHORTWAVE_HEATING to some files for consistency
1994    checkpoint46a_pre
1995    
1996    checkpoint46
1997    further merges from release1_p5
1998    o new ctrl package
1999      - adopted from ECCO environment to enable optimization
2000      - added Eliassen Palm fluxes to controls
2001    o added Eliassen Palm flux controls to gradient check package
2002    o cost package
2003      - Compatible with new ctrl package
2004      - added Eliassen Palm cost hooks
2005      - modif's of existing cost functions
2006    o Adjoint-related bug fixes in kpp:
2007      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2008      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2009    o autodiff package
2010      - flow directives:
2011        + new for S/R do_the_model_io
2012        + enhanced for S/R checkpoint
2013        + new gmredi.flow
2014      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2015        disable adcommon.h/g_common.h by default.
2016      - fixed problem for adjoint of global_max
2017    o modified verification/carbon/
2018    o New setup for adjoint of global_ocean
2019    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2020    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2021    o incorporated hooks for sponge layer code (external_forcing.F)
2022    
2023    checkpoint45d_post
2024    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2025    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2026      (affects plume_on_slope "cg2d" output)
2027    o add new parameter deltaTfreesurf for free-surface time stepping
2028    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2029    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2030    o change phiMin in exp1 (to agree with documentation)
2031    o add new flags:
2032     - T,S forcing inside/outside Adams-Bashforth
2033     - turn off temp,salt advection and/or forcing
2034     - for each tracer, define internal flag for multiDimAdvection & A-B
2035    o monitor: change definition of KE to check conservation of Energy
2036    
2037    checkpoint45c_post
2038    o Removed f90 comments ("!")
2039    o Modified initialisations to enable exf package for MITgcm
2040      (without invoking ECCO_PACKAGE).
2041    o modifications to gradient check package (Martin Losch)
2042      - enable centered differences
2043      - modified format of standard output
2044    
2045    checkpoint45b_post
2046    o cleaned exchange calls in cg2d
2047    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2048    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2049      to configure barotropic setup (Martin Losch)
2050    o moved some initialisations within bi,bj loop in dynamics
2051      (TAF flow dependency)
2052    o in initialise_varia, moved call packages_init_variables
2053      before convective_adjustment_init
2054      (corresponding adjustment of TAF tape initialisation).
2055    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2056    
2057    checkpoint45a_post
2058    o compute Rho over the whole domain (extend iMin,jMin indices)
2059    o specific exchange for X-slice domain (case Ny=1)
2060    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2061    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2062    
2063    checkpoint44h_post = checkpoint45
2064    o Fix to restore differentiability:
2065      place at which packages_init_variables is called in
2066      initialise_varia is crucial for reverse control flow.
2067    o modifications in GMRedi to enable stable adjoint
2068      (corresponding modif's in thermodynamics, dynamics)
2069    o added missing hook for sponge layer code in external_forcing
2070    o modified test cost functions
2071    o storing in gad_advection (plus removal of write(0,*)!
2072    o missing headers TR1.h added in convective_adjustment routines
2073    o errorMessageUnit set non-equal zero in eeboot
2074      (conflict on some platforms, e.g. IBM SP3)
2075    o modified carbon verif.
2076    
2077    checkpoint44h_pre
2078    o vertical grid option: allow to put the Interface at the middle between
2079      2 cell-centers ; replace delZ in pkg/kpp by drF.
2080    o GM Advective form: Tracers are advected using the residual transport (=
2081      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2082    
2083    checkpoint44g_post
2084    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2085      results) ; ifdef missing in thermodynamics.F
2086    
2087    checkpoint44f_pre,checkpoint44f_post
2088    o added PTRACERS package
2089      This allows an arbitrary number of passive tracers to be integrated
2090      forward simultaneously with the dynamicaly model.
2091      + Implemented so far:
2092        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2093        - I/O and checkpointing
2094        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2095      + Not implemented so far:
2096        - KPP
2097        - OBCS
2098      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2099        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2100        line in data.pkg.
2101      + This package is disabled by default since it increases storage.
2102    
2103    
2104    o testscript: added -cleanup option
2105    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2106                 b) enable to filter 2D fields.
2107    
2108    checkpoint44e_pre,post
2109    o re-wrote convective adjustment to use pre-calculated weights
2110      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2111      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2112      Original calls to convect() still in place.
2113    
2114    chkpt44d_pre,post
2115    o added missing EXCLUDE_MONITOR flags
2116    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2117      (incompatible typ in MIN/MAX expressions caused problems
2118      on IBM SP3)
2119    o in genmake added variable MAKEDEPEND
2120      plus resetting for case SunOS
2121    o added timer_stats.c routine for IBM SP3
2122    o removed variables in dynamics
2123    !!! I forgot to create tag chkpt44d_pre !!!
2124    !!! But chkpt44d_pre = chkpt44c_post    !!!
2125    
2126    o real fresh water flux implemented with non-linear free-surface.
2127    
2128    chkpt44c_pre,post
2129    o few fix (mask in shap_s2, EmPmR in external_field_load,
2130      USE_NATURAL_BCS in solve_for_P);
2131    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2132    
2133    checkpoint44b_pre/_post
2134    o merge of relevant stuff from the ecco-branch:
2135      - genmake: removed $S64 overwrite for case SunOS
2136      - pkg/exf: update and corrections for field swapping and obcs
2137      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2138                  harmonized between ECCO and MITgcm
2139      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2140                      updated checkpointing_lev... lists for obcs
2141      - model/src: minor changes in forward_step, plot_field
2142                   added directive for divided adjoint in the_main_loop
2143      - pkg/mdsio: added mdsio_gl_slice
2144    
2145    o check parameters & config (chkpt44a_pre,post)
2146    o OBC and NonLin_FrSurf.
2147    
2148    checkpoint44
2149    o fix bug in mom_vi_del2uv
2150    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2151    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2152    o update AIM experiments (NCEP input files)
2153    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2154    o added some stuff for AD
2155    
2156    checkpoint43
2157    o added two new advection tests
2158    o added global 4x4 degree ocean test
2159    o added test of H&S94 with free surface on cube
2160    o some final mods for gradient check, adjoint,...
2161    
2162    checkpoint42
2163      Fixed AD-related problems:
2164    o Store directives up-to-date with re-arranged Adams-Bashforth
2165      (mainly thermodynamics.F)
2166    o New store directives for multi-dim. advection schemes
2167      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2168      * new common block and key passkey
2169      (mainly gad_advection.F)
2170    o Modified store directives for split of dynamics/thermodynamics
2171      for the case ALLOW_KPP
2172    o Cleaned argument list for timestep_tracer.F
2173    
2174    checkpoint41
2175    o re-formatted/added comments in prologues of key subroutines
2176      to work with protex
2177    
2178  checkpoint40  checkpoint40
2179  o all changes of checkpoint40pre?  o moved calc_gs, calc_gt and calc_tr1 back to model/src
2180    o added FLT (floats) package from Arne along with demo. experiment
2181    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2182      implementation of forward-in-time forcing terms
2183    o more mods for non-linear free-surface including new variable
2184    o modified multi-dim method to work on cube
2185    o bug fix in KPP (from DM)
2186    
2187    checkpoint40pre9
2188    o added DST advection schemes
2189    o fix MPI bug on SGI's
2190    o modifications for non-linear free-surface
2191    o fixed conditionals for fixed flow/passive tracer only mode
2192    o added tension/strain form of stress tensor
2193    o changes to commenting of arguments for TAF/TAMC
2194    o added/updated many matlab scripts
2195    o added multi-dimensional advection method for tracers
2196      
2197    checkpoint40pre8
2198  o new package rw/  o new package rw/
2199    Added method for dumping intermediate local arrays:    Added method for dumping intermediate local arrays:
2200    mdsio_writetile - same as mdsio_writefield except works from inside    mdsio_writetile - same as mdsio_writefield except works from inside

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