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revision 1.41 by heimbach, Fri Jul 13 18:08:14 2001 UTC revision 1.548 by jmc, Mon Sep 19 01:27:43 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  diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
8    o In response to JMC's bug report, genmake2 now ignores any soft-links
9      that it finds in the *current* directory when searching for files.
10      Soft-links found in any other source directories will still work as
11      they did before.
12    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
13      a C routine to unlimit the stack size
14    o mnc-ify pkg/aim snapshot vars
15    o mnc-ify pkg/land as requested by Daniel
16    o various changes to mnc including:
17      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
18      - output can now be grouped so that all files within a group
19          change the ITER portion of their names in lock-step together
20      - can now read ("global") PER-FACE (in addition to PER-TILE) files
21          and works with both EXCH1 and EXCH2 (but needs more testing)
22      - writing works for all verification test cases w/ g77 on Linux
23    
24    checkpoint57r_post
25    o make MNC variable initialization happen earlier
26    o add diagnostics for (almost) each term of the momentum Eq.
27    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
28    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
29    o remove MINIMAL_TAVE_OUTPUT option ;
30      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
31    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
32      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
33    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
34    o add time-dependent SST, SSS control
35    o cost terms in ecco/ modularized (new cost_generic.F)
36    o cost_averages routines are modularized (new cost_averagesgeneric.F)
37    o new infrastructure for seaice model vs. obs misfits in seaice/
38      * driver from the_main_loop.F is seaice_cost_driver.F
39      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
40      * gradient check in Exp. 6a of natl_box_adjoint/
41    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
42      (see README file)
43    
44    checkpoint57q_post
45    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
46    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
47      - bug was reported by Jean-Michel and Ian Fenty
48    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
49      update exp. cpl_aim+ocn output.
50    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
51      Needed for high-res. runs with large global files
52      to be able to limit tapelev size
53    o Changed some tests for adjoint:
54      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
55      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
56      * global_ocean.90x40x15/ back to default 3-level checkpointing
57    o Modifications to enable scripted COMMON to MODULE conversion
58      * verification/OpenAD/code/ has necessary scripts and description;
59      * converts, compiles and runs successfully;
60    
61    checkpoint57p_post
62    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
63    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
64      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
65    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
66    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
67      (was already the case for dissipation with mom_vecinv,
68       and also the case for grad.PhiHyd when staggered-timeStep)
69      This will allow to put dissipation out-off the AB time-stepping.
70     Unfortunately, affects truncation error. Update output of exp. that "fails"
71      (cg2d matching number) and leave the others for later: front_relax(10),
72      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
73      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
74    
75    checkpoint57o_post
76    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
77      (2) its ready to be documented during the 20050801 DocFest
78    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
79      for ideal_2D_oce and lab_sea on linux_ia32_g77
80    o set to #undef CTRL_SET_OLD_MAXCVARS_30
81      in global1x1_tot/code_seaice_adj to access indices 32, 33
82      (worth another tag)
83    
84    checkpoint57n_post
85    o adding precip control xx_precip 32
86    o adding swflux control xx_swflux 33
87    o Replacing 10 forcing penalty cost routines by 1 generic.
88    o Implementing partitioning in time-mean and variable adjustment
89      for atmos. state.
90    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
91    o in natl_box_adjoint:
92      * updated exp 1 to 10
93        (but does not have time-mean vs. variable split results yet)
94    o updated global1x1/*_seaice_adj/
95      to incorporate latest changes
96    o enable useSingleCpuIO for mdsio vector routines
97      (applies in particular to tapelev I/O)
98    o removed inefficient K-loop in all active_file*control*.F
99    
100    checkpoint57m_post
101    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
102      and advect_cs (use EXCH-2 and standard cs-32 grid files).
103    o pkg/exch2: filling of face-corner halo regions is optional
104      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
105    
106    checkpoint57l_post
107     tag before updating tutorials (pre-release-2)
108    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
109       for output and interpolation of input fields onto model grid)
110    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
111       Affects results of exp. rotating_tank ; update output.txt.
112    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
113          and taking the square quantity and/or using a fraction-weight field.
114    o fix aim_diagnostics_init.F mate numbers.
115    o add mnc output capability to diagnostics/diagstat and update
116      our cvsignore files for the ACSII output generated
117    
118    checkpoint57k_post
119    o lab_sea now uses diagnostics package and provides a suite of
120      new EXF diagnostics output.
121    
122    checkpoint57j_post
123    o exf
124      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
125        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
126        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
127      * extended diagnostics output
128        - now includes all EXF variables
129        - hs, hl moved to common block
130        - separate S/R for diagnostics, called after ctrl vector is added
131        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
132        - EXFqnet contains true Qnet (i.e. includes qsw)
133      * updated verif. lab_sea, global_with_exf
134      * Rearranging hflux (exf_mapfields -> exf_getforcing)
135        to ensure that diagnostics sees a true EXFqnet
136    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
137    o diagnostics pkg: change pointers so that 1 diagnostic can be used
138      several times with different frequencies.
139    o mnc-ify the thsice package as requested by Daniel Enderton
140      - the monitor--MNC output needs work
141      - many attributes need to be added (most are currently blank)
142    o mnc-ify theaim_v23 package as requested by Daniel Enderton
143      - many attributes need to be added (most are currently blank)
144    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
145    o add Sadourny like discretization to the 4th.O vorticity advection scheme
146    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
147      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
148         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
149    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
150     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
151    
152    checkpoint57i_post
153    o Diagnostics package was changed: diagnostic allocation is now deactivated
154      by setting an empty file name in the namelist (used to be by setting 0 frequency)
155    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
156      add 1rst Order upwind vertical Shear.
157    o add a quick fix for A/B checkpointing in OFFLINE mode
158    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
159      end-run around the C/Fortran linking horror in eesup/src/timers.F
160    o added pkg/runclock: allows user to terminate run based on wall clock
161    o added non-hydrostatic scaling parameter: nh_am2
162    o pkg/my82: futile attempt to make results compiler-independent by adding
163      some "_d 0", etc. no effect.
164    o for mnc output, fill the 'T' coordinate var with myTime and create a
165      separate 'iter' variable for iteration count
166    o pkg/diagnostics:
167      add new capability: output of Global/Regional & per-level statistics ;
168      tested against monitor output (including land & thSIce) on various exp.
169    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
170    
171    checkpoint57h_done
172      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
173      data.diagnostics, data.gchem, data.ptracers) is done.
174    
175    o pkg/diagnostics: prepare for Global/Regional statistics.
176      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
177    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
178      and rename it: DIFFERENT_MULTIPLE
179    
180    checkpoint57h_post
181    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
182    o pkg/diagnostics: change output frequency, now in seconds (instead
183      of Nb of iterations). This requires to change data.diagnostics.
184    checkpoint57h_pre
185    
186    o in mnc, let the user create the output dir if both mnc_outdir_date
187      and mnc_outdir_num are false
188    o add fflags() to pkg/diagnostics which allows one to specify, on a
189      per-file basis, the file precision [default behavior is unchanged]
190    o added diagnostics to pkg/kpp, including computation of mixed layer
191      depth based on a temperature/density criterion
192    o updated verification/natl_box to test the new pkg/kpp diagnostics
193    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
194    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
195    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
196      not mnc -- this mistake was found by JMC and is now corrected
197    
198    checkpoint57g_post
199    o add Adams-Bashforth 3rd Order time stepping:
200      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
201      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
202    checkpoint57g_pre
203    
204    o make lambda[Theta,Salt]ClimRelax spatially varying
205      (default remains spatially uniform constant based on tau)
206    o added new control variables
207      * init. uVel, vVel, etanN
208      * lambda[Theta,Salt]ClimRelax
209    o separate masks used for ctrl_pack/unpack 'from write_grid' output
210      (suggested by G. Forget)
211    
212    checkpoint57f_post
213    o add parameter "baseTime" = model base time = time at iteration zero
214      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
215      account for baseTime shift
216    o move Coriolis arrays from PARAMS.h to GRID.h
217    checkpoint57f_pre
218    
219    o mnc-ifying the seaice package
220    o introduced an alternative length scale calculation for use in the limiting
221      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
222    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
223    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
224      as well as grad(vort3).  Made it compatible with both approximate form
225      for the cubed sphere and full form of these gradients.  Added flag
226      useFullLeith to select between approximate and full form.  
227    o add "d0" in getcon.F to reduce differences between compilers/platforms
228      update output.txt of exp. fizhi-gridalt-hs
229    o change port_rand funtion to allow to set the seed.
230    o fix obscure MNC bug involving conversion between reals and integers
231      - it caused no problems with certain (eg. gcc, ifc) compilers but the
232        new version is now more standards-compliant
233    o adjoint-related modifications
234      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
235      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
236      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
237    
238    checkpoint57e_post
239    o Adding eddy stress controls a la Ferreira et al.
240    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
241    
242    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
243      update output.txt of exp. fizhi-gridalt-hs
244    o add more "Z" dimensions and associated coordinate vars to MNC
245    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
246    o parameter calendarDumps: when set, approximate months (30-31 days) and years
247      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
248      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
249      months and years.  Requires pkg/cal.
250    o diagnostics: add pickup functionality
251      - off by default for backwards compatibility
252      - current version only uses MDSIO -- MNC will be added
253    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
254    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
255    
256    checkpoint57d_post
257    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
258    o modify verification/ideal_2D_oce so that it tests the creation of mnc
259      output from the diagnostics package
260    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
261    o make genmake2 more portable by using ".$FS" instead of ".f" for more
262      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
263    o add coordinate variables to the MNC output from the diagnostics package
264    o change MNC-flags default value: true when useMNC=TRUE
265    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
266      the ability (off by default) to read the grid information using MNC
267    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
268    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
269    o do snap-shot diagnostics at the middle of the time-interval (instead of
270      at the end).
271    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
272      new test for AIM with thSIce + slab-ocean
273    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
274    o move state variable diagnostics to the beginning of the time step ;
275      (note: still needs some work specially for snap-shot diagnostics)
276      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
277    
278    checkpoint57c_post
279    o Change testing option (-ieee) to get closer agreement between g77 & ifort
280    o generate new output.txt files on faulks with g77 & the new -ieee option
281    checkpoint57c_pre
282    
283    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
284      update output.txt of exp. global_ocean.90x40x15
285    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
286      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
287    o add saltFlux(+File) forcing capability with periodicExternalForcing
288    o allow to use pkg diagnostics for GM-Redi & ThSIce output
289    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
290    o improvements for the MNC output from DIAGNOSTICS:
291      - correct handling of the unlimitied dimension
292      - all dims now have associated coordinate variables
293      - variables located at U, V, and Corner ("Z") points are now written
294        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
295        *all* data points are output
296    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
297    o added pkg/seaice/seaice_monitor.F
298    o mdsio_readfield.F can now read files visible only to master MPI process.
299    o pkg/seaice: some test code for ice-modified ocean stress
300    o exf_getffields interpolation defaults to bilinear for all scalar forcing
301      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
302      spurious negative numbers for precipitation and humidity.  Will cause
303      some small numerical differences for integrations using pkg/exf/exf_interp.F.
304    o pkg/ctrl/
305      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
306        May be enabled via doPackDiag
307      *  introduce z-scaling of
308         + gradient (doZscalePack) and
309         + control (doZscaleUnpack)
310    o pkg/mdsio/
311      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
312      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
313    
314    checkpoint57b_post
315    o simplify options in diagnostics_fill arguments (remove weird combinations)
316    o fix MNC coordinate variables so that they now contain per-face index
317      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
318      general, EXCH2 grids are only aligned to a "local" coordinate system
319    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
320    o Implement instantaneous output within pkg diagnostics:
321      setting a negative frequency in data.diagnostics produces
322     "snap-shot" output (as opposed to time-average if freq > 0)
323    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
324      NOTE: change ptracer diagnostics name: use 2 characters to work with
325            more than 9 tracers. Add also diagnostics of advect & diffus flux.
326    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
327      becomes the coordinate variable for the 'T' dimension
328    o add CF-style coordinate variables to MNC
329      - just a first cut:  numbers are meaningless on the cubesphere and
330        missing along the T axis but otherwise it works!
331    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
332    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
333    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
334      this is based directly on what the model compute, so that the content of
335      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
336    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
337    o clean up build options files for SunOS, in particular
338      - remove -traditional from xmakedepend
339      - change -xarch=v9 to -xarch=native for f77
340      - restore use of make (not gmake)
341      - add CC=gcc if using g77
342    o changes per discussion of AM, JMC, & EH3 today:
343      - move redundant "grid" variables out of "state" -- in preparation of
344        creating proper CF-style coordinate variables and in recognition
345        that any/all grid variables can be easily copied (eg. w/NCO) from
346        the grid files into any of the other NetCDF files
347      - *always* output grid variables with MDSIO (this will eventually be
348        changed)
349      - output MNC grid file if useMNC is true
350    o every instance of _END_MASTER() has been found and replaced with
351      _END_MASTER( myThid ) in order to satisfy certain picky Sun
352      preprocessors
353    o re-arrange diagnostics pkg initialisation:
354     - allow each package to extend the available diagnostics list
355     - add some checking and fix small problems (multi-threaded, ...)
356     - new S/R diagnostics_fill (replace fill_diagnostics):
357       look through the short list of active diag. (instead of the long list)
358       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
359    
360    checkpoint57a_post
361    o this set of changes restores TAMC compatibility
362      tested for global_ocean.90x40x15 adjoint on trough
363      (what a pain)
364    
365    checkpoint57a_pre
366    o some modifs in tools/build_options for sunos
367    o call ctrl_pack for ctrl at end for optimcycle=0
368    
369    checkpoint57
370    o add horizontal bi-harmonic viscosity for vertical velocity
371      - new parameter viscA4W (defaults to viscA4)
372      - affects only non-hydrostatic code
373      - to be done: no-slip lateral boundary conditions
374    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
375    o implement Implicit Vertical advection for pTracers
376    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
377      (implemented also for implicit vertical diffusion & advection)
378    o OBCS: extend application of tracer open boundary conditions
379      to a strip beyond the boundary of width Olx/Oly
380    o add call monitor to TAF set of required calls (flow directives)
381      and include in natl_box_adjoint
382    o untangle a few ifdefs related to cost, ctrl, autodiff
383      untangel a few ALLOW_ECCO_OPTIMIZATION
384    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
385      (theta2, salt2 in ecco_cost_weights)
386    
387    checkpoint56c_post
388    o OBCS as control variables
389      - update ctrl_ad_diff.list, obcs_ad_diff.list
390      - remove balance of obcs controls from default
391      - fix index bug nobcs in ctrl_init
392      - fix dummy fields filen in ctrl_pack
393      - add dummy weights for obcs
394    o lsopt: comment out fort.94 output
395    o optim:
396      - remove unnecessary header files
397      - adjusted namelists
398      - add xerbla.F to Makefile
399    o exf:
400      - multiple modifications of exf_check_range
401      - unit change in exf_init_runoff from [m/year] to [m/s]
402    o mdsio:
403      - i/o-vector change debugLevel from debLevA to debLevB
404    
405    checkpoint56b_post
406    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
407      is called from DO_THE_MODEL_IO
408      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
409      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
410      - clean up PTRACERS_WRITE_TIMEAVE a little
411    o add another verification experiment that tests both the cfc-pkg and
412      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
413      reactive tendencies treated inline with regular timestepping
414    o testreport previously did a lousy job of comparing small numbers, so
415      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
416      implemented in the little c-progam tmp_cmpnum.c which is embedded in
417      testreport.
418    o ptracers_monitor: bug fix for MPI
419    
420    checkpoint56a_post
421    o GCHEM: finish reorganizating the package
422      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
423        (introduces another 3D-array for each passive tracer, but only if
424        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
425        gchemTendency is not needed because the timestep is done separately)
426      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
427      - GCHEM is now---more or less cleanly---separate from PTRACERS
428      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
429        so clear to me how that should be done in a general way.
430    o CFC: improve formatting of output in CFC_ATMOS
431    o PTRACERS:
432      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
433        that ALL experiments with ptracers enable can be checked. This makes
434        GCHEM_MONITOR obsolete.
435      - include a runtime parameter PTRACERS_monitorFreq that defaults to
436        monitorFreq
437      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
438    o add PTRACERS (PTR0[1-5]) to testreport output
439    o exf_check_range:
440      * default changed to .TRUE.
441      * will check values for niter0 if debLevA, every timestep if debLevB
442      * STOP in exf_check_range if 'out of range'
443      * range chosen generous to allow for potential extema
444      TBD: a version with stricter range
445           permitted range would be runtime parameters
446    o GMredi:
447      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
448      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
449      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
450    o GCHEM:
451      - move call to GCHEM_FORCING_SEP, so that it is now called before
452        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
453      - introduced a useGCHEM runtime flag and applied it everywhere.
454      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
455        this flag is now only visible within GCHEM-pkg routines.
456      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
457        be replaced by a 3D array that is computed before thermodynamics; for
458        this, the tracer ID iTracer had to be included into the parameter list
459        of ptracers_forcing
460      - set up forward_step to call gchem_forcing, that will replace
461        gchem_forcing_int in ptracers_forcing
462      - cleaning up
463    o small cleaning of exch2: remove files that are also in eesupp/src
464    
465    checkpoint56
466    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
467    o mnc: cleanup "full" files--fixes out-of-memory problem
468    o ECCO-GODAE
469      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
470      * fully merged and updated from SIO code
471        windstress sign change affects
472        - exf_inscal_[u/v]stress
473        - sign of xx_tau[u/v] adjustments
474        - signs in cost_scat
475      * ctrl_get_gen: avoid update of tau[u/v] for first few days
476      * natl_box_adjoint updated and compressed
477      * 2-level checkpoint switch added
478        (tested in EXP. 1 of natl_box_adjoint)
479      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
480    o SVD
481      * first complete, non-hacked version for SVD calculations
482      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
483        performed via direct access files admtlm_vector.it????
484        (via ctrl_[un]pack)
485      * optimcycle is used for ARPACK iteration counter
486        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
487      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
488        and add linear transforms where necessary
489      * controls are initial/final SST, SSS (can be extended; need to check
490        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
491    o mdsio: filename info to both stderr, stdout
492    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
493      from sign change
494    
495    checkpoint55j_post
496    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
497      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
498    o add consistent build directories and .cvsignore files to verification
499    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
500    o make all subroutines 30 or less characters in length for certain older
501      compilers to work (a thorough search only turns up two routines in
502      pkg/ptracers)
503    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
504      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
505    
506    checkpoint55i_post
507    o change arrays for total vertical diffusivity (2.D if explicit,
508      3.D if implicit) ; each ptracer uses its own background value.
509    o added mnc/NetCDF output capability to ocn_compon_interf
510      - added bits to verification/cpl_aim+ocn so that it can run on
511        ITRDA and other clusters without the mpirun "-wd" option
512    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
513      configuration
514    o give MNC the ability to create additional files rather than
515      exceeding a specified file size limit "MNC_MAX_FILESIZE"
516      - the default is just less than 2GB which is a practical limit
517        on many systems
518    o Compute the non-local term using either KPP vertical diffusivity (=default)
519       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
520    
521    checkpoint55h_post
522    o add verification test "vermix"
523    o remove all the *_ioinc flags and replace with the single global
524      outputTypesInclusive flag
525    o allow to set a vertical profile of vertical diffusivity for T & S
526    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
527    o useMNC moved from data.mnc to data.pkg
528    
529    checkpoint55g_post
530    o Renaming carbon AD experiments to comply with testreport conventions
531    o Updating adjoint of Held-Suarez hs94.1x64x5
532    o Fixing directives for non-ECCO forward_step, after ECCO directives
533      have been fixed to avoid recomp. of do_oceanic_phys
534      Works well for global_ocean.90x40x15,
535      but recomp. issue remains for carbon
536    o Updating adjoint output for natl_box_adjoint after
537      pkg/ecco has been modified (see taga c55d_post)
538    
539    checkpoint55f_post
540    o rename to timeave_init_fixed
541    
542    checkpoint55e_post
543    o some delicate re-shuffle of store directives to avoid one
544      extra call of do_oceanic_physics
545      affects ecco_the_main_loop.F, do_oceanic_physics.F
546      checkpoint_lev1_directives.h
547    o NB: this may break global_ocean adjoint temporarily,
548      but it is clear how to fix it. Will do later, need this now.
549    
550    checkpoint55d_post
551    o ECCO specific cost function terms (up-to-date with 1x1 runs)
552    o ecco_cost_weights is modified to 1x1 runs
553    o modifs to allow observations to be read in as
554      single file or yearly files
555    o enable to read exf forcing fields as either
556      single file or yearly files (flag useExfYearlyFields)
557    checkpoint55d_pre
558    
559    o switch between 2-level and 3-level checkpointing
560    o add ability of MNC to write local and "partial" (eg. 2D slices where
561      the full 3D field is never actually stored) arrays to NetCDF files
562      with the correct (that is, the complete multi-dimensional) set of
563      array indicies
564      - used in mom_vecinv() to write the diagFreq output
565      - tested (demonstrated) in verification/aim.5l_cs
566    o further mnc-ification
567      - add verification/lab_sea to the list with mnc setups
568      - fix undefined mnc v-names in cd_code
569      - add kpp to mnc output (both snapshot and timeave)
570    o non-hydrostatic code
571      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
572        in calc_gw.F
573      - defaults to viscAh
574      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
575        friction or Leith) in non-hydrostatic mode, as long as there is
576        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
577    o pkg/cost
578      extend simple cost functions to treat time mean quantities
579      (T,U,V) via cost_accumulate_state from cost_tile
580    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
581        be 2 times larger than the minimum size the advection scheme requires.
582        now get a perfect conservation of salt in advect_cs test-exp (updated)
583    o GGL90 (Gaspar's TKE mixed layer)
584      - add horizontal diffusion of TKE, requires exchanges in
585        do_fields_blocking_exchanges, horizontal diffusivity is zero by
586        default. In OPA there is no horizontal diffusion of TKE but the
587        mixing coefficients are computed from a horizontal average of TKE of
588        6 points or so. I think that diffusion has a little more physical
589        justification.
590      - clean up ggl90_calc in the hope of reducing memory usage (this hope
591        was in vain)
592      - mask tke-variable in ggl90_init
593    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
594    o fix biharmonic diffusion on CS-grid.
595    o more obcs stuff
596      - added obcs_external_fields_load as an alternative to the EXF-pkg option
597        for reading boundary values. This routine is called from
598        obcs_prescribe_read
599      - updated obcs_check
600      - changed sponge layer relaxation parameter units for days to seconds
601      - turned off sponge layer by default
602      - changed argument list of OBCS_CALC to myTime+deltaTclock
603      - fixed about 35 bugs in obcs_external_fields_load
604    
605    checkpoint55c_post
606    o obcs stuff
607      - new runtime flags useOBCSprescribe, useOBCSbalance
608      - re-arranged obcs_calc
609      - moved exf_getobcs to obcs_prescibe_read
610        obcs_prescibe_read is called after ORLANSKI stuff
611        and independent of it (executable can contain all).
612      - updated obcs_check
613      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
614        These may be necessary only if tangential velocities are
615        prescribed at OB, not sure, needs testing.
616    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
617      which simplifies the calls and passes the ifc check-bounds test
618    
619    checkpoint55b_post
620    o add a 2D scalar, Z location, exchange_2 routine.
621    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
622      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
623      affects advect_cs results (for the wrong reason): update output.txt
624    o use a more standard discretization for biharmonic viscosity ;
625     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
626      affects results of dome set-up: update output.txt
627    o fix gad_advection.F (CubedSphere part), back to version 1.23
628    o fix bug in mom_vi_del2uv.F (CubedSphere part).
629    
630    checkpoint55a_post
631    o merged code to
632      * prescribe/read time-dependent open boundaries
633        (works in conjunction with exf, cal)
634      * sponge layer code for open boundaries
635      * each boundary N/S/E/W now has its own CPP option
636        (healthy for the adjoint)
637    
638    checkpoint55
639    o up-to-date adjoint of previous breaks
640      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
641      - global_ocean_ebm: adjoint still needs fix (TLM ok)
642      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
643      - carbon: * remove tr1-related adjoint verification
644                * add ptracer as control variable
645    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
646      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
647    
648    checkpoint54f_post
649    o in verification/carbin/ remove experiment related to
650      ALLOW_PASSIVE_TRACER (array tr1 etc)
651      code_ad/ input_ad/ results_ad
652    
653    o add two new packages
654      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
655        + subject to optimization (memory)
656      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
657        + subject to reordering (many GOTOs in the original code)
658        + so far opps is called for every (i,j) point, and then operates in
659          the vertical; one may want to reorder the scheme in order operate in
660          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
661          fields)
662    o overhaul of IO so that we now have flags for MDSIO and/or MNC
663      - all verification tests compile and run with linux_ia32_g77
664      - defaults are compatible with current input files--nothing
665        should change if you were not previously using MNC
666      - MNC output has been added in numerous places (eg. timeave)
667        but there are still a few writes not yet do-able with MNC
668        (this is in progress)
669      - flags now allow for either/or/both use of MDSIO and MNC and
670        documentation will soon follow
671      - numerous small formatting cleanups for ProTeX
672    o add version info (via BUILD_INFO.h) to MNC and stdout
673    
674    checkpoint54e_post
675    o add two new packages
676      - pp81 (Packanowski and Philander, 1981), Richardson number and
677        stratification dependent mixing
678      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
679      - these scheme operate in a similar manner as KPP (without ghat, of
680        course), however there is only one diffusivity that is used for both
681        temperature and salinity (and passive tracers)ç
682    o add offline package
683    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
684      provided by Stephanie Dutkiewicz
685    o genmake2: add ability to search for C compilers and cleanup test output
686      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
687    
688    checkpoint54d_post
689    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
690    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
691      leading to additional shift by 5 days each year of integration
692       (i.e. leading to considerable offset over the years)
693    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
694    o start with no AB and no initial filtering (staggerTimeStep):
695      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
696    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
697      (external loading & cpl import/export stay in forward_step.F)
698    o update coupling interface to work with new staggerTimeStep
699    o change MDSIO ptracers_pickup.
700    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
701    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
702    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
703    
704    checkpoint54c_post
705    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
706      this affects (truncation error) output.txt of test-exp:
707       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
708    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
709    o change Qnet to always be the net heat flux, (+upward).
710      affects (truncation error) output of natl_box exp.: updated
711    o define the max number of passive tracers in PTRACERS_SIZE.h
712    o start to test mnc routinely in exp0
713    o add sea-ice loading (sIceLoad) as a new forcing field.
714    
715    checkpoint54b_post
716    o add testreport "-j JOBS" option for parallel builds (tested and pretty
717       impressive on Altix and Opteron systems)
718    o diagnostics can now write NetCDF files through the mnc package
719    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
720    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
721    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
722      affects (truncation error) output of lab_sea & natl_box exp.: updated
723    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
724    
725    checkpoint54a_post
726    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
727    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
728    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
729    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
730      + internal_wave (shift in writing cg2d_ini_res)
731    checkpoint54a_pre
732    
733    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
734      - modified verification/lab_sea and natl_box_adjoint accordingly
735    
736    checkpoint54
737    checkpoint53g_post
738    o prepare splitting of thermodynamics: store convect.counter in common block
739    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
740      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
741    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
742    o new parameter "nShapS": allow to treat differently S from T (nShapT)
743    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
744    o restore adjointability
745    
746    checkpoint53f_post
747    o modifications that affect AIM experiment results (update output.txt):
748      - no advection of S at top interface Nr (pkg/generic_advdiff)
749      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
750    o AIM pkg:
751      - include stability function into surf.Flux derivative relative to Tsurf
752      - calculate clear-sky radiation & surface temp. change (for diagnostics)
753    
754    checkpoint53e_post
755    o merged cylindrical coord configuration
756    o added rotating_tank experiment
757    checkpoint53e_pre
758    
759    checkpoint53d_post
760    o faulks upgraded: re-generate output.txt that have changed:
761       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
762    o Added Bryan and Lewis, 1979, vertical diffusivity profile
763    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
764    o added Sadourny discretization of Coriolis
765      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
766      - re-enabled use of omega3 (useAbsVorticity)
767    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
768      vector-invariant equations
769      - note: does *NOT* yet use same variable visc. for no-slip BC's.
770    o recoded the lateral boundary conditions for non-hydrostatic w, this time
771      hopefully without new bugs
772      - still to do: biharmonic friction for non-hydrostatic w
773    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
774    o regenerated output for global_ocean_ebm (using -ieee)
775    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
776      of mom_common/
777      - simple re-arrangement of instructions within computing loop
778    checkpoint53d_pre
779    
780    checkpoint53c_post
781    o new version of coupler for AIM+thSIce and Ocean models
782     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
783     - land: change Evaporation of snow
784     - aim with thSIce: fix bug in snow-precip.
785    o changes to calc_gw.F
786     - bug fix for w^2 term near the bottom boundary
787     - (hopefully) improve the lateral slip boundary condtions for use with
788        partial/looped cells
789      - because the bug fix changes two verification experiments anyway (exp5
790        and plume on slope), change the lateral boundary condition from half slip
791        to the value of no_slip_sides
792    o ebm package wasnt quite up to the parallel task. Fixed that.
793    o Adjoint of EBM package + verification
794      * TLM OK
795      * ADM not sufficient accuracy yet (needs further testing)
796    
797    checkpoint53b_post
798    o Commiting new energy balance model to repository
799      * package is pkg/ebm
800      * verif. is verification/global_ocean_ebm
801      * references are in ebm_driver.F
802    C      * X. Wang, P. Stone and J. Marotzke, 1999:
803    C        Global thermohaline circulation. Part I:
804    C        Sensitivity to atmospheric moisture transport.
805    C        J. Climate 12(1), 71-82
806    C      * X. Wang, P. Stone and J. Marotzke, 1999:
807    C        Global thermohaline circulation. Part II:
808    C        Sensitivity with interactive transport.
809    C        J. Climate 12(1), 83-91
810    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
811    C        Destabilization of the thermohaline circulation
812    C        by atmospheric eddy transports.
813    C        J. Climate 7(12), 1870-1882
814    o Will need long integration testing.
815    checkpoint53b_pre
816    
817    o created pkg/mom_common in preparation for variable viscosity code
818    o renamed and split ini_mnc_io
819    o pkg/land: only liquid water can diffuse or run-off
820    o AIM using land: soil wetness availability account for snow
821    o added printMapIncludesZeros to EEPARMS namelist
822    
823    checkpoint53a_post
824    o restore TAMC compatiility for exf_constants.h
825      (no usage of _d in .h)
826    o Additional storing in KPP in an attempt to fix
827      TAMC problem with adjoint of KPP code.
828      (no success...)
829      Identical code works fine with TAF.
830    o Fixed verification/natl_box_adjoint experiments.
831      Initial conditions for Experiments 4 and 5 are now
832      set to "SEAICE_initialHEFF=0", which is more reasonable,
833      and hence gives results closer to that of Experiment 2.
834      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
835    
836    checkpoint53
837    o stable checkpoint with up to date adjoint
838      TLM tests only run for 1st grdchk at the moment. Its unclear if
839      this is a code problem or a problem with resetting code for g_
840      variables that is being autogenerated wrong.
841      Otherwise:
842       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
843       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
844         are both still in chaos following their security messes.
845    
846    checkpoint52n_post
847    o various build (mostly genmake2) changes including:
848      - ability to build/run more easily within Cygwin and MacOS X
849      - more complicated Makefiles with a stronger dependence on Gnu Make
850    o pkg/seaice modifications
851      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
852        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
853        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
854      - changed proxy for geostrophic velocity and updated
855        verification/lab_sea/results/* accordingly
856      - removed ADI dynamic solver from pkg/seaice
857      - replaced all occurrences of 1/CSTICE or 1/CSUICE
858        they caused a segmentation fault under certain circumstances
859      - removed unused field WATR
860    o bug fix in exf-package:
861      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
862         now reflect that.
863    o small fixes in the cal-package:
864      - set reference date to first of January for the 'model'-calendar
865      - failing of cal_CheckDate in cal_FullDate now actually results in a
866        warning
867    o small modifications in exf-package to increase flexibility:
868      - change climtempfreeze from a constant to a runtime parameter that
869        is specified in data.exf_clim (default = -1.9)
870      - introduce runtime parameter windstressmax (default = 2.0) that is
871        specified in data.exf
872    o fix in pkg/thsice:
873      - update Evap (Tsf changes) to be consistent with Latent heat flux
874      - maintain snow precipitation unchanged (even if Tsf >=0).
875     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
876    
877    checkpoint52m_post
878    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
879      this does not change any of the results, because myIter=0 in swfrac always
880      lead to jwtype=2 (the default anyway), but the call makes little sense
881      as a default
882    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
883    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
884      atmospheric model (AIM) to use it ; add a "slab ocean" component.
885    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
886    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
887    o extending useSingleCpuIO option to work with new exch2 I/O format
888      - old-style, missing-tile I/O is still accessible by defining CPP
889        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
890    o monitor package can write to NetCDF files and/or STDOUT
891    o fix re-definition bug in MNC_GRID_INIT_ALL()
892    o doc/api_reference added
893      - a framework for building an API Reference Manual using all
894        the "protex" comments embedded in the code
895      - see pkg/generic_advdiff, pkg/mnc for examples
896    o MNC:
897      - make myThid the last argument for all subroutines
898      - new default for the grid files: NO halos
899      - add useMNC and other run-time flags
900      - separate per-file-group handling of the unlimited dimension
901      - early initialization of MNC w/ flags read at the eeboot stage
902        and lookup tables set in initialize_fixed
903      - write all MNC output to a freshly-created directory
904    o thermodynamics sea-ice (thsice) is now tested with testreport.
905    o test exp. advect_cs: use the standard cs32 grid ; update output.
906    o Added functionality to grdchk:
907      pick global i,j,k position (or nearest wet) where to perform check.
908    
909    checkpoint52l_post
910    o new land formulation:
911      a) use ground enthalpy as prognostic variable to ensure exact
912         energy conservation.
913      b) account for water temperature and for latent heat of freezing
914         in all processes (rain, run-off, ground storage)
915      c) compute surface and ground temperature implicitly.
916    o aim_v23 modification for new land model:
917      a) Treat separately land / ocean / sea-ice surface fluxes
918         to allow implicit computation of land & sea-ice surface temp.
919      b) add snow precipitation.
920    checkpoint52l_pre
921    
922    o fix problem (when 1 tile is empty) in min/max monitor.
923    o fix bug in timeAve (u,vZetatave in common block)
924    o no restoring terms under ice for pkg/seaice
925    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
926    o bug fix for pkg/seaice pickups
927    o change MNC call locations and add coordinate attributes
928    o mask vorticity at the corner ; affects global_ocean.cs output
929    o fix ini_curvilinear_grid ; test CS experiments with mpi
930    o aim.5l_cs: modify sea-ice fraction input file ; update output
931    o exf: Adding simple range check routine for exf fields after read
932    
933    checkpoint52k_post
934    o removed top-level directory "diags"
935      - we migrated these functions to pkg/timeave a long time ago
936    o fixed bug introduced in pkg/monitor
937    o accuracy ctrlprec = 32 insuffient for gradient checks using
938      averaged fields (I/O via cost_averages)
939      -> use ctrl.h in active_file*.F to control I/O precision.
940    o paramter list of CALL ADTHE_MAIN_LOOP
941    o added initial do_the_model_io to ecco
942    o set all ...Freq to zero after cost_final
943      taveFreq, dumpFreq, pChkptFreq
944    o MAIN and ECCO differentiability restored
945    
946    checkpoint52j_post
947    o fix nchklev in tamc.h for global_ocean...
948    o Bringing flow and store directives up-to-date
949    o Really weird thing!
950      call do_the_model_io from the_main_loop with parameters
951      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
952      TAF places a faulty re-call of initialise_varia
953      after cost_final call which should not be there!
954    checkpoint52j_pre
955    
956    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
957      error messages
958    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
959    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
960      debug output
961    o modfied mdsio_writefield.F to handle non-global files under exch2
962    o update AIM Cubed-Sphere exp (aim.5l_cs):
963      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
964    o update AIM Equatorial Channel exp:
965      use standard aim_v23 pkg and change the SST fields to be more realistic.
966    o globalFile now works with exch2
967    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
968      mon_vort3.F to make exch2 friendly with >1 tile per cube face
969    o limit timeave output for hi-res integrations
970    
971    checkpoint52i_post
972    o removed CPP_EEOPTIONS.h from verification/*/code
973    o updated the tiling for global_ocean_pressure
974    checkpoint52i_pre
975    
976    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
977      the old pkg/aim).
978    
979    checkpoint52h_pre
980    o shortened offending lines in exch2_send_rx?.template
981    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
982    o genmake2: add build & execute test for NetCDF code
983    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
984      old grid files, moved CPP_EEMACROS.h to pkg/exch2
985    o added useSingleCPUIO flag to monitor.F and mon_out.F
986    o added temporary hack for sea-ice dynamics on the cube:
987      metric terms are ignored and it is assumed that
988      there is no sea-ice on cube faces 1, 2, 4, and 5.
989    
990    checkpoint52f_post
991    o added exch2 cube routines to pkg/exch2
992    o modified hs94.cs-32x32x5 to use it
993    o added new grid files to hs94.cs-32x32x5
994    checkpoint52f_pre
995    
996    checkpoint52e_post
997    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
998      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
999    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1000      to work with implicit vertical advection and AB ;
1001    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1002    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1003     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1004    checkpoint52e_pre
1005    
1006    o fix bug in impldiff when Nr=1 or Nr=2.
1007    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1008    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1009    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1010      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1011    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1012    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1013    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1014    
1015    checkpoint52d_post
1016    o re-tiled many expts to allow comparison in multi-processor mode
1017      - updated output accordingly
1018      - changed hs94.128x64x5 to use intial T from file rather than use the
1019        random number generator
1020    o add infrastructure in model routines for fizhi and gridalt packages
1021    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1022    o changes to permit hi-res, cubed-sphere, configuration
1023      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1024      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1025      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1026        of surface winds for the cube
1027      (A verification experiment, based on global_ocean.cs32x15, but with
1028       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1029       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1030       complete with example surface forcing files and matlab scripts to look
1031       at the output and compare it with that of global_ocean.cs32x15.)
1032    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1033       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1034       to conform to the common rule.
1035    o check-in the first version of the coupler + interfaces for multi-components
1036       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1037       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1038       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1039       - ocean and atmos. share the same horizontal grid (no interpolation).
1040       - exchanges between component and coupler is done in forward_step
1041    o new verification experiment, cpl_aim+ocn:
1042       coupled ocean - AIM atmosphere on cs32 grid.
1043    
1044    checkpoint52d_pre
1045    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1046    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1047    
1048    checkpoint52c_post
1049    o Fixing OPTIONS files for use of exf:
1050      - ALLOW_ECCO not needed
1051      - ECCO_CPPOPTIONS.h should not be included from
1052        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1053        as has been the case in the past
1054      - All cal/exf related options are currently set in
1055        single header file. Should remain so until we
1056        agree on a consistent new policy.
1057    o Removed all CPP options for cal package.
1058      cal has no more CPP options.
1059    o modified STOREs in GAD_ADVECTION
1060    o corrected key comp. for passkey
1061    
1062    checkpoint52b_post
1063    o new version: "thsice" of thermodynamic sea-ice pkg:
1064     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1065     - modify fluxes but do not change theta directly;
1066     - light cleaning of bulk_force pkg (still needed with thsice).
1067     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1068       + output_thsice.txt to test thsice & bulk_force pkgs.
1069    o put back grid & coriolis monitor output.
1070    checkpoint52b_pre
1071    
1072    o call "do_the_model_io" at the beginning (=> dump initial state)
1073    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1074    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1075      (need info on NUMBER_OF_PTRACERS)
1076    o missing PTRACERS headers in some routines
1077    o default tamc.h in pkg/autodiff supposed to crash
1078      to ensure proper customization
1079    
1080    checkpoint52a_post
1081    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1082      - moved surfaceTendencyTice from pkg/seaice to main code
1083      - subroutine FREEZE_SURFACE now limits only surface temperature
1084        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1085        => new output.txt for global_ocean.cs32x15 & global_with_exf
1086      - keep the old version of FREEZE for backward compatibility;
1087        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1088      - corresponding modifs for TAF directives
1089    o added surface flux output variables to TIMEAVE_STATVARS
1090    o time-averaged output for pkg/ptracers
1091    o fix problem with ECCO-related divided adjoint
1092      snapshot file was missing some ad-variables,
1093      but no warning issued by TAF
1094    
1095    checkpoint52a_pre
1096    o some bug fixes for #undef REAL4_IS_SLOW
1097    
1098    checkpoint52 = ecco_c52_e35
1099    o after testing adjoints of checkpoint51u_post
1100    
1101    checkpoint51u_post
1102    o this is the post-merge tag of the ecco-branch
1103      (needs another clean checkout and re-testing)
1104    o various natl_box_adjoint configs and results
1105      but no input fields
1106    o obcs adjoint not yet merged!
1107    o adding ECCO global 1x1 and 2x2 degree configs
1108    o updated/extended some store directives for seaice
1109    o pkg/ecco now containes ecco-specific part of cost function
1110    o top level routines the_main_loop, forward_step
1111      supersede those in model/src/
1112      previous input data.cost now in data.ecco
1113      (new namelist ecco_cost_nml)
1114    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1115    
1116    checkpoint51t_post
1117    o this is the pre-merge tag of the ecco-branch
1118    
1119    checkpoint51s_post
1120    o cleanup: removed various obsolete #define-s
1121    o pkg/grdchk
1122      - renamed 'ph-grd 3' to 'grad-res'
1123      - merged from ecco-branch
1124        (remaining bug fixes for obcs gradient checks)
1125      - additional high-precision output for testreport
1126        (grep for 'precision_grdchk_result')
1127    
1128    checkpoint51r_post
1129    o cleaned up or removed CPP_OPTIONS.h files
1130    o updated results for some of the tests to reflect the new
1131      optfiles (-ieee: -O0 instead of -O3)
1132    
1133    checkpoint51q_post
1134    o cd_code:
1135      - moved cd_scheme.F -> cd_code_scheme.F
1136      - separate read_checkpoint from cd_code_ini_vars.F
1137      - separated cd_code part from write_checkpoint
1138      - updated AD_SOURCE, generated .flow
1139      - added CD_CODE_VARS.h to the_main_loop
1140      - Moving cd_code specific store dir.s to pkg/cd_code
1141    o ctrl package totally restructured
1142      - pack/unpack now optional and decoupled from
1143        xx_/adxx_ I/O
1144      - ctrl_pack/unpack cleaned
1145        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1146      - confined inclusion of AD_CONFIG.h to where necessary.
1147    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1148    
1149    checkpoint51p_post
1150    o create initial cd_code package
1151      - WARNING: the initialization of fields within packages
1152        is broken because INI_FIELDS (where READ_CHECKPOINT is
1153        called) is called *before* PACKAGES_INIT_VARIABLES.
1154        This seems to be backwards since
1155        1) its important to initially zero the entire field including
1156           the "halo" region
1157        2) zeroing needs to be done *before* reading pickup info
1158           and the pickup call might or might not happen in any
1159           particular run
1160      - this needs an overhaul for R2
1161    o cleanup verification/*/code/GMREDI_OPTIONS.h
1162    o cleanup testreport
1163    
1164    checkpoint51o_post
1165    o bringing AD-related verif's up to date with genmake2
1166      - carbon/
1167      - global_ocean.90x40x15/
1168      - hs.94.1x64x5/
1169      - (front_relax/ )
1170    o (more) consistent directory structure for AD-related verif.'s
1171    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1172    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1173    o bug fix in find_alpha.F for MDJWF:
1174      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1175        change rho -> rho-rhoConst
1176      - replace call find_rho to find_rhonum
1177    o initialisation of rFlx extended to full array (required by TAF)
1178      and shifted to thermodynamics
1179    o removed PTRACERS.h in ptracers routine
1180    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1181    o Correcting initialisations for fVerU, fVerV.
1182    o helping TAF to recognize dependency on kUp for
1183      fVerU, fVerV
1184    o Replacing delZ by delR in pkg/ctrl/
1185    checkpoint51o_pre
1186    
1187    o undid all of cp51 pending some cleanups and discussion
1188    o added the [#include "AD_CONFIG.h"] statement to all files that need
1189       it for adjoint/tl #defines
1190     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1191     o removed tools/genmake since it no longer works
1192    
1193    checkpoint51n_post
1194    o modifications to make FREEZE flux visible to pkg/kpp
1195      - moved surfaceTendencyTice from pkg/seaice to main code
1196      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1197      - subroutine FREEZE now limits only surface temperature
1198        (this means new output.txt for global_ocean.90x40x15,
1199         global_ocean.cs32x15, and global_with_exf)
1200    o added surface flux output variables to TIMEAVE_STATVARS
1201    
1202    checkpoint51n_pre
1203    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1204    o added [#include "AD_CONFIG.h"] to all files that use the following
1205      defines:
1206      - ALLOW_ADJOINT_RUN
1207      - ALLOW_TANGENTLINEAR_RUN
1208      - ALLOW_ECCO_OPTIMIZATION
1209    
1210    checkpoint51m_post
1211    o incorporating changes to get TAMC/TAF working in genmake2
1212      - added new TAMC/TAF targets to the Makefile
1213      - various cleanups related to package handling
1214      - these changes should have no impact on the forward model
1215    
1216    checkpoint51l_post
1217    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1218     - faster algorithm for cal_addtime.F
1219     - higher precision arithmetic, where needed
1220     - pkg/exf *startdate variables changed from calendar date to
1221       model integration time
1222    
1223    checkpoint51l_pre
1224    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1225    o enable to apply restoring on S & T only in a latitude band.
1226    o update output (external_forcing_surf modif. change truncation errors)
1227       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1228    
1229    checkpoint51k_post
1230    o change default to: useNHMTerms=.FALSE.
1231     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1232       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1233     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1234        exp1, ideal_2D_oce
1235     - change data file of oceanic exp (leave the results unchanged for now)
1236       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1237    o set gravitySign automatically according to the vertical coordinate used
1238      (and change sign: back to "logical" value: +1 when R increases downward)
1239    o added an include barrier to the default CPP_OPTIONS.h and
1240      removed the #include "PACKAGES_CONFIG.h" from it
1241    o fix a bug in mom_fluxform (from chk51j_post)
1242    
1243    checkpoint51j_post
1244    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1245    o adjusted some flow directives (dynamics, thermodynamics)
1246    o added cubed-sphere case to test cost function
1247    o heckpoint_lev?_directives.h now include
1248      pkg-specific directives, whenever those are enabled.
1249    o Moving pkg-specific flow directives to corresponding pkg
1250      Moving pkg-specific differentiation list to corresponding pkg
1251      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1252      ---> conventions are
1253           - pkg_ad.flow
1254           - pkg_ad_diff.list
1255           - pkg_ad_check_lev?_dir.h
1256    
1257    checkpoint51i_post
1258    o merge of the branch-genmake2
1259      - knowingly breaks the older genmake
1260      - automatic generation of all ALLOW_${PKG_NAME} defines
1261      - new testreport supersedes older testscript
1262    o large number of package inclusion and header cleanups
1263    checkpoint51i_pre
1264    
1265    o new output for adjoin of global ocean vector invariant
1266    o fix for checkpoint of thermodynamic seaice and bulk_force
1267    o Steph gchem various cleanups
1268    
1269    checkpoint 51h_pre
1270    o fixed some single quotes
1271    o modify gchem pkg to be more versatile
1272    o modifications to clean up dic pkg
1273    o add pkg/cfc
1274    
1275    checkpoint51g_post
1276    o provide links for ARPACK and ADM*TLM
1277    o start removing verification/vero/
1278    o update AD-related stuff
1279      (in particular some IF-statements in model/src/ routines)
1280    o adding to verification/global_ocean.90x40x15/ adjoint of
1281      vector invariant setup
1282    
1283    checkpoint51f_post
1284    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1285    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1286      of tracer Green's fucntions for ocean inversion project.
1287    
1288    checkpoint51f_pre
1289    o Added on-the-fly spatial interpolation capability
1290        "USE_EXF_INTERPOLATION" to pkg/exf.
1291      - This is a temporary Cartesian-grid hack until
1292        the super-duper ESMF coupler becomes available.
1293      - See verification/global_with_exf/README for usage example.
1294      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1295        flags and modified pkg/seaice accordingly.
1296    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1297        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1298        non-local transport term.
1299    
1300    checkpoint51e_post
1301    o pkg/mom_vecinv:
1302      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1303      - add time-ave diagnostic of vorticity advection.
1304    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1305    o atmospheric geopotential: - include water vapor effect;
1306                                - use p^kappa in p* scaling.
1307    o land pkg: read initial state from files.
1308    o AIM : add stratospheric drag in the upper level
1309    
1310    checkpoint51d_post
1311    o change function ILNBLNK (=> last non-blank char.) to return zero
1312      (instead of the string length) when the string. char is empty
1313    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1314    o modif's to restore TAMC compatibility
1315      - avoid "_d" constructs in PARAMETER declarations
1316      - avoid interrupting lines by comment lines
1317    o Use cluster local disks for purely local I/O
1318      vs. globally visible disks needed for ctrl stuff
1319      (merged from ecco-branch)
1320      - new active_file_loc... and mdsio_..._loc routines
1321      - affected packages: autodiff, ctrl, grdchk, mdsio
1322    
1323    checkpoint51c_post
1324    o introducing integer flag debugLevel
1325      - debLevZero: suppress all output
1326      - debLevA: standard
1327      - debLevB: equivalent to current debugMode=.TRUE.
1328    o introducing pathname variable mdsioLocalDir for mdsio
1329      that can be specified at runtime
1330      (relevant for cluster I/O to local disk)
1331    `
1332    >>>checkpoint51b_post
1333    adjoint of ptracers
1334    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1335    o extended state in checkpoint_lev?, etc.
1336    o alternative ctrl/cost with tr1 or ptracer
1337    o new comlev1_bibj_ptracers
1338    o new ptracers.flow
1339    o made ptracers_forcing same as external_forcing_s
1340    o added verification for adjoint with ptracers
1341      - adm. grdchk fail so far
1342      - tlm. grdchk OK
1343      - checked tapelev/comlev recomputations: OK
1344    <<<checkpoint51b_pre
1345    
1346    checkpoint51a_post
1347    o added code for biogeochemistry package
1348      - new pkgs: dic, gchem
1349      - new subroutine in ptracers
1350    o modify code for biogeo packages
1351      - in model/src and pkg/ptracers
1352    
1353    checkpoint51
1354    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1355      - autodiff, ctrl, exf, grdchk, seaice
1356      kept separate packages
1357      - cost, ecco, obcs
1358    o updating verification/internal_wave, verification/lab_sea
1359      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1360    
1361    checkpoint50i_post
1362    o Preparing next differentiable checkpoint and sync
1363      of MAIN vs. ecco-branch
1364      - 1st step: this one is differentiable
1365      - 2nd step: next(! not this) checkpoint will have updated packages
1366                  from ecco-branch)
1367    
1368    checkpoint50h_post
1369    o new package "land": provide surface BC for AIM.
1370    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1371    o AIM: use true log-P extrapolation for near surface temp (= as in
1372        F.Molteni paper) ; update aim.5l_cs output.
1373    o New variable in PARM03 for more flexible pickups
1374    o somewhat cleaned package initialisation sequence for
1375      ctrl/ cost/ ecco/ in packages_... routines
1376    
1377    checkpoint50g_post
1378    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1379      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1380      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1381        made the default because of faster convergence than ADI
1382    
1383    checkpoint50f_post
1384    o exf totally restructured
1385      - replaced all exf_set_ routines by one generic exf_set_gen.F
1386        and made sure it's still differentiable
1387      - split exf_getffields.F into new exf_bulkformulae.F
1388      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1389      - updated adjoint/makefile and relevant verif. accordingly
1390    
1391    checkpoint50f_pre
1392     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1393          + change Evap over land. (update aim.5l_cs output)
1394     o added missing .cvsignores and made uniform across expts
1395     o changed configuration of tidal_basin_2d expt
1396     o added pkg/debug functions for tracing code in fatal crashes
1397     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1398     o new fn in pkg/monitor to stop model if solution grows too big
1399     o removed lots of single quotes from comments
1400    
1401    checkpoint50e_post
1402    o make KPP work with PTRACERS
1403     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1404       nearly a copy of kpp_transport_s
1405     - there is no analogue to SurfaceTendencyS, so I have to use
1406       gPtr(of the surface layer) instead
1407    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1408    checkpoint50e_pre
1409    
1410    checkpoint50d_post
1411    o change kpp output from multiple-record state files to single-record state
1412      files analogous to write_state.F
1413    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1414      analogous to the cg2d-related output.
1415    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1416      so that writing to internal file fn (with length 512) fails.
1417    checkpoint50d_pre
1418    
1419    checkpoint50c_post
1420    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1421    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1422    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1423    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1424    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1425    
1426    checkpoint50c_pre
1427    Merging from release1_p13:
1428    o bug fix for pkg/seaice dynamic solver
1429    o Added SEAICE_initialHEFF to pkg/seaice
1430    
1431    checkpoint50b_post
1432    o store u*,v* in gU,V instead of in guNm1,gvNm1
1433    o in order to put the momForcing out of the Adams-Bashforth:
1434      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1435      to timestep.F
1436    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1437    o re-generate output for highly sensitive test-exp:
1438       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1439    
1440    checkpoint50b_pre
1441    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1442    o corrected CPP option mismatch in exf_Bulk... functions for case
1443      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1444    
1445    checkpoint50a_post
1446    o Bug fix for merging between c50 and KPP.
1447      ikey was passed from thermodynamics to kpp_calc via
1448      common block rather than being recomputed in kpp_calc,
1449      in contradiction with new key itdkey.
1450      New key ikppkey created, and tamc.h headers updated.
1451    
1452    checkpoint50
1453    - 2nd step of merge with ecco-branch:
1454      merge changes in ecco-branch back into main trunk
1455    - bug fix in find_alpha
1456    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1457    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1458    - merged some sliced AD support routines
1459    
1460    checkpoint49
1461    merged from ecco-branch:
1462    o exf:
1463      - Enable initialisation of forcing fields to constant
1464        (runtime) values.
1465      - in exf_getffields.F
1466        Reduce i-/j-loop to interior domain, discarding overlaps.
1467        That also fixes wrong TAF-key computations for key_1, key_2
1468        with bulf formulae.
1469      - exf_init.F modify #ifdef for exf_init_evap
1470      - exf_getffieldrec.F, ctrl_getrec.F
1471        The following INT-usages are not safe:
1472          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1473          fldcount = int(fldsecs/fldperiod) + 1
1474        and were modified.
1475    o autodiff: checkpoint_lev...
1476      - updated storing for bulk formulae (some arrays were missing)
1477      - added state for seaice package
1478      - synchronized with main branch
1479    o DIVA:
1480      Modif.s in
1481      - the_main_loop.F
1482      - the_model_main.F
1483      and added cost_final_restore.F cost_final_store.F
1484      o With these changes, it is possible to fully separate
1485        the first forward run to compute the cost function (mdthe_main_loop)
1486        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1487        into separate model executions.
1488        This enables better tuning of DIVA to given queue sizes.
1489      o Loss of cost function value in consecutive DIVA runs is
1490        fixed by storing to 'costfinal' file.
1491      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1492        beginning/end of adjoint integration is accounted for.
1493      The current changes apply to TAF-1.4.26.
1494      TAF has one remaining bug, requiring one manual change
1495      (see MITgcm manual).
1496    o cal: synchronized between MAIN and ecco-branch
1497    
1498    checkpoint48i_post
1499    o Changes to restore differentiability of code w.r.t. previous tag
1500      (mostly adding new routines to make list and replacing
1501      pressure by totPhiHyd).
1502    o Updated and merged grdchk package
1503      - has both ADM and TLM checks
1504      - works for single- and multi-proc.
1505      - output cleaned
1506      - worked successfully for parallel DIVA
1507    o genmake:
1508      - Adding -platform=SP4
1509      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1510    o Modif. for DIVA:
1511      ctrl_unpack should not be called in intermediate DIVA interval.
1512      (similar thing would apply for active files such as
1513      tbar, sbar, psbar, which should not be reinitialised;
1514      only relevant for ecco-branch)
1515    
1516    checkpoint48h_post
1517    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1518    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1519    o Added SEAICE_initialHEFF to pkg/seaice
1520    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1521    
1522    checkpoint48g_post
1523    --- EOS:
1524    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1525      store total Potential in totPhyHyd for diagnostics & EOS.
1526    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1527    --- Pressure/geopotential gradient:
1528    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1529    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1530      ( changes results of global_ocean_pressure )
1531    o NLFS + z-coord.: add eta*Rho' contribution.
1532    o accurate phiHyd when using interface-W at the middle between 2 centers
1533     ( changes results of ideal_2D_oce )
1534    o includes r* 2nd term in potential gradient.
1535    
1536    checkpoint48f_post
1537    Merging from release1_p12:
1538    o Modifications for using pkg/exf with pkg/seaice
1539      - improved description of the various forcing configurations
1540      - added basic radiation bulk formulae to pkg/exf
1541      - units/sign fix for evap computation in exf_getffields.F
1542      - updated verification/global_with_exf/results/output.txt
1543    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1544      (SBO) core products, including oceanic mass, center-of-mass,
1545      angular, and bottom pressure (see pkg/sbo/README.sbo).
1546    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1547      to avoid negative values in shallow regions.
1548      - updated verification/natl_box/results/output.txt
1549      - updated verification/lab_sea/results/output.txt
1550    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1551    o Added useSingleCpuIO option (see PARAMS.h).
1552    o Updated useSingleCpuIO option in mdsio_writefield.F to
1553      work with multi-field files, e.g., for single-file pickup.
1554    o pkg/seaice:
1555      - bug fix in growth.F: QNET for no shortwave case
1556      - added HeffFile for specifying initial sea-ice thickness
1557      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1558    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1559      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1560    o pkg/seaice:
1561      - adjoint-friendly modifications
1562      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1563    
1564    checkpoint48e_post
1565    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1566    o dynamics: change definition of computational domain & adapt mom_fluxform
1567      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1568    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1569        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1570        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1571        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1572        inverted_barometer solid-body.cs-32x32x1
1573      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1574    
1575    checkpoint48d_post
1576    o in preparation for r*:
1577     a) use pre-computed gradient of hydrostatic potential:
1578        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1579     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1580        => affects results of glob_oce_pressure (different truncation error)  
1581      update output.txt of ideal_2D_oce & global_ocean_pressure
1582    
1583    checkpoint48d_pre
1584    o in preparation for r*:
1585      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1586      pass the 2 comp. of the grad. as arguments to momentum S/R.
1587      but for the moment, only used if it does not change the results.
1588    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1589    
1590    checkpoint48c_post
1591    Modifications in treatment of initial flux forcing controls
1592    to avoid extra storing of flux fields.
1593    
1594    checkpoint48c_pre
1595    o Added tidal_basin_2d experiment (currently 1D!)
1596    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1597    
1598    checkpoint48b_post
1599    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1600     (modification to pressure gradient not yet implemented)
1601    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1602      (for U & V) that are used for vertical advection of momentum.
1603    
1604    checkpoint48a_post
1605    o In preparation for r*, use temp. array to compute vertical transport
1606       in flux-form momentum pkg. => change results of few test-exp.
1607      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1608                        lab_sea, natl_box & plume_on_slope
1609    
1610    checkpoint48
1611    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1612    
1613    checkpoint47j_post
1614    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1615    o moved adexch from forward_step to addummy_in_stepping
1616    o added exch in ctrl_map_...
1617    o aveFreq.=0. at end of cost_final to avoid overwrite in
1618      reverse checkpointing loop
1619    o Yet more changes in gmredi:
1620      * adgmredi_calc_tensor
1621        avoiding all recomputation of gmredi_slope_limit
1622      * adgmredi_x/y/rtransport
1623        added flag for excessive storing to avoid recomp. of
1624        u/v/rtans, dTdx/y/z
1625        -> this is not really necessary and very memory-consuming
1626      * adgmredi_slope_psi:
1627        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1628      * gmredi_slope_limit
1629        re-activated full calculation of taperfct for case 'ac02'
1630    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1631    
1632    checkpoint47i_post
1633    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1634    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1635      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1636    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1637    o gmredi: fix few bugs.
1638    
1639    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1640    This will be a good checkpoint to plug into the ecco-branch.
1641    o few modif.'s to get latest version adjointed
1642      (mainly kick out code in ini_linear_phisurf)
1643    o modif's to run adjoint with exactConserv
1644    o case GM_BOLUS_ADVEC should be cleaned
1645      S/R gmredi_slope_psi should be cleaned
1646    o verification/carbon now has exactConserv=.TRUE.
1647    
1648    checkpoint47g_post
1649    o time-average AIM output: becomes independent from statvars time-average
1650      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1651    o After TAF bug fix:
1652      Tested adjoint of gmredi package.
1653      Tests were done with checkpoint47 rather than with latest
1654      checkpoint47f_post since the latter is broken for the adjoint
1655      verification/carbon/ contains both ADM and TLM gradient checks.
1656    Here they are, before they get changed/lost/stolen.
1657    Mostly modif.'s to fix numerical sensitivities.
1658    Gradient checks OK for
1659    - GM_taper_scheme:
1660      * clipping
1661      * ac02
1662      * linear
1663      * glw91
1664      * dm95
1665      * ldd97
1666    - GMREDI_OPTIONS:
1667      * GM_VISBECK_VARIABLE_K
1668      * GM_NON_UNITY_DIAGONAL
1669      * GM_EXTRA_DIAGONAL
1670      * GM_BOLUS_ADVEC
1671    in conjunction with data.gmredi parameters to be checked in
1672    in a few minutes under verification/carbon/code/
1673    
1674    checkpoint47f_post
1675    Merging from release1_p10:
1676    o modifications for using pkg/exf with pkg/seaice
1677      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1678        and SEAICE_EXTERNAL_FLUXES
1679      - pkg/exf CPP options EXF_READ_EVAP and
1680        EXF_NO_BULK_COMPUTATIONS
1681      - usage examples are Experiments 8 and 9 in
1682        verification/lab_sea/README
1683      - verification/lab_sea default experiment now uses
1684        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1685    
1686    checkpoint47e_post
1687    o created a tag prior to creating a branch
1688    
1689    checkpoint47d_post
1690    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1691      at the bottom boundary had an erroneous half slip boundary condition
1692    o added bottom drag and no slip boundary condition capabilities to
1693      oceanic pressure coordinates code
1694    o added new verification experiment global_ocean_pressure, this experiment is
1695      also described in the tutorial section of the manual
1696    checkpoint47d_pre
1697    
1698    checkpoint47c_post
1699    o Added a verification experiment for a global cubed-sphere ocean run
1700      -  verification/global_ocean.cubed32x32x30
1701      -  uses pkg/therm_seaice and pkg/bulk_forcing
1702    
1703    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1704    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1705      when using P-coordinate; only implemented for atmospheric config.
1706    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1707      NOTES: requires option NONLIN_FRSURF to be "#define".
1708    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1709    
1710    checkpoint47b_post
1711    Merging from release1_p9:
1712    o pkg/seaice
1713      - removed GOTO's and added taf directives
1714      - double precision constants to reduce the g77 (Linux)
1715        to F77 (SGI) differences reported in release1_p8
1716    o tools/genmake
1717      - added SGI options
1718    o verification/testscript
1719      - updated to that of checkpoint47a_post
1720    o verification/global_ocean.90x40x15/input/eedata
1721      - modified for SGI f77 compatibility
1722    o verification/lab_sea
1723      - added description of sea-ice model
1724      - added missing matlab routines
1725      - added test of thermodynamics parallelization
1726    
1727    checkpoint47a_post
1728    o new pkg: aim_v23
1729     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1730       for now, keep the same surface forcing as before.
1731     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1732     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1733     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1734    o add diagnostic of surface correction term in monitor output
1735    
1736    o bulk_force and therm_seaice
1737    - Two packages:  bulk_force (Bulk forcing)
1738      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1739    - Earlier integration from Stephaine Dutkiewicz
1740      and Patrick Heimbach.
1741    - Two ifdef statements for compile time,
1742       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1743    
1744    checkpoint47
1745    differentiable version of checkpoint46n_post
1746    o bug fix in quasihydrostaticterms
1747    o * "clean" adjoint code (in terms of extensive recomputations)
1748        can now be obtained for all GMREDI options (i.e. for
1749        - GM_VISBECK_VARIABLE_K
1750        - GM_NON_UNITY_DIAGONAL
1751        - GM_EXTRA_DIAGONAL
1752        - GM_BOLUS_ADVEC )
1753      * However, wrong gradient check problem remains unsolved.
1754      * New CPP options have been introduced for different
1755        tapering schemes
1756    o external_fields_load now part of differentiation list
1757    o pressure needs multiple storing;
1758      would be nice to have store_pressure at beginning or
1759      end of forward_step, e.g. by having phiHyd global (5-dim.)
1760      (NB: pressure is needed for certain cases in find_rho,
1761      which is also invoked through convective_adjustment).
1762    o recomputations in find_rho for cases
1763     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1764    o #define ATMOSPHERIC_LOADING should be differentiable
1765    o ini_forcing shifted to begining of initialise_varia
1766    o Incorporating QNVS line search routines into MITgcm
1767      (this is separate code, and therefore not under pkg)
1768      lsopt/, optim/
1769    o Updated verification/carbon/
1770      - #define GM_VISBECK_VARIABLE_K
1771      - GM_taper_scheme    = 'ldd97'    
1772    
1773    checkpoint46n_post
1774    Merging from release1_p8:
1775    o verification/natl_box:
1776      updating new external_fields_load routine
1777    o New package: pkg/seaice
1778      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1779      The sea-ice code is based on Hibler (1979-1980).
1780      Two sea-ice dynamic solvers, ADI and LSR, are included.
1781      In addition to computing prognostic sea-ice variables and diagnosing
1782      the forcing/external data fields that drive the ocean model,
1783      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1784      The implied surface heat flux is then stored in variable
1785      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1786      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1787      non-local transport term.  Because this call precedes model
1788      thermodynamics, temperature under sea-ice may not be "exactly" at
1789      the freezing point by the time theta is dumped or time-averaged.
1790      N.B.: fairly large differences in accuracy occur across
1791            different platforms/compilers; comparison between
1792            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1793            generated output gives:
1794       T           S           U           V
1795      C D M    c        m  s        m  s        m  s        m  s
1796      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1797      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1798      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1799    
1800      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1801    o GAD:
1802      - generated new common blocks to account for call of
1803        same gad routines with differing traceridentities
1804        (needed to modify tracerIdentity indices in GAD.h)
1805      - generated separate common blocks for case useCubedSphereExchange
1806        (Department of Futurology)
1807      - parameter lists to gmredi_?transport: added tracerIdentity
1808      - added new key indices to tamc.h
1809    o external_fields_load:
1810      - added this routine to TAF list
1811      - needed to make some common blocks global and additional storing
1812        along the same lines as exf package (checkpoint_lev?_directives.h)
1813    o exf:
1814      updated external forcing package
1815      - bug fixes carried over from ecco-branch
1816        (missing OBCS_OPTIONS.h in two routines)
1817      - enable easy to use "no forcing".
1818      - added exf I/O for atmospheric loading
1819      - added exf I/O for runoff data
1820      - transfered scaling between exf <-> MITgcm to exf namelist
1821    o Adding new verification experiment global_with_exf.
1822      This verification experiment is almost identical to the
1823      global_ocean.90x40x15 experiment, except that it uses
1824      the exf (and cal) package instead of the
1825      external_fields_load routine (cf README file).
1826    
1827    checkpoint46m_post
1828    o modified testscript to return -- when there are no lines of "%MON" output
1829    o added new flag "quasiHydrostatic" for QH mode
1830      and new routine quasihydrostaticterms()
1831    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1832      New routine: mom_u_coriolis_nh()
1833    o fixed sign of non-hydrostatic metric terms in u and v equations.
1834      Depend on correct sign of gravitySign.
1835    o added work.pc* to .cvsignore in aim directories using ifc
1836    o introduced flag for controllin non-hydrostatic metric terms
1837    o removed gravitySign from PARM04
1838    o switched to g77/ifc from pgf77 in aim experiments
1839    
1840    checkpoint46l_post
1841    o made convective adjustment work with pressure coordinates:
1842     - changed the direction of k-loop in convective_adjustment.F for the
1843       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1844     - adjusted the reference pressure k-index in convective_adjustment.F
1845     - adjusted the convection condition in convect.F (in analogy to
1846       calc_ivdc.F)
1847     - convective_adjustment no longer computes anything on the halos
1848     - removed the warnings about negative salinity from find_rho.F and
1849       find_alpha.F; instead the new routine look_for_neg_salinity, called
1850       at the beginning of find_rho, find_alpha, and find_beta, does a
1851       check of the entire slice, if CPP-option
1852       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1853    checkpoint46l_pre
1854    
1855    checkpoint46k_post
1856    o fixed the verification/global_ocean.90x40x15 experiment:
1857     - new bathymetry (the world according to A., JMC, and M.)
1858     - new initial fields and forcing fields (*.bin files)
1859     - new POLY3.COEFFS (for the next release one should switch to a full
1860       equation of state: JMD95P or MDJWF)
1861     - fixed several errors and redundancies in the data file
1862     - experiment uses looped cells
1863     - added matlab directory with diagnostic scripts for plotting of output
1864    
1865    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1866     - read AIM physics parameters from a file (data.aimphys)
1867     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1868    
1869    checkpoint46j_post
1870    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1871    o move wVel computation at the end of the time step, in S/R integr_continuity
1872    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1873    o update timeave pkg for wVel diagnostic.
1874    checkpoint46j_pre
1875    
1876    checkpoint46i_post
1877    o Clean up AIM package (and keep the results unchanged):
1878      include CPP_OPTION and use IMPLICT NONE in all routines ;
1879      declare all the variables _RL ; use _d 0 for all numerical constants.
1880      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1881    
1882    checkpoint46h_post
1883    o cleaned up the use of rhoNil and rhoConst.
1884      - rhoNil should only appear in the LINEAR equation of state, everywhere
1885        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1886        and the dynamical equations are all divided by rhoConst
1887    o introduced new parameter rhoConstFresh, a reference density of fresh
1888      water, to remove the fresh water flux's dependence on rhoNil. The default
1889      value is 999.8 kg/m^3
1890    o cleanup up external_forcing.F and external_forcing_surf.F
1891      - can now be used by both OCEANIC and OCEANICP
1892    checkpoint46h_pre
1893    
1894     Added code to convert surface volume flux (fresh water) into
1895     a mass flux when using P coordinates in the ocean (OCEANICP).
1896     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1897    
1898    checkpoint46g_post
1899    o Include a new diagnostic variable phiHydLow for the ocean model
1900      - in z-coordinates, it is the bottom pressure anomaly
1901      - in p-coordinates, it is the sea surface elevation
1902      - in both cases, these variable have global drift, reflecting the mass
1903        drift in z-coordinates and the volume drift in p-coordinates
1904      - included time averaging for phiHydLow, be aware of the drift!
1905    o depth-dependent computation of Bo_surf for pressure coordinates
1906      in the ocean (buoyancyRelation='OCEANICP')
1907      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1908        Theta, Salinity, and Pressure in the parameter list. This routine is
1909        presently contained in find_rho.F. This routine does not give the
1910        correct density for 'POLY3', which would be a z-dependent reference
1911        density.
1912    o cleaned up find_rho
1913      - removed obsolete 'eqn' from the parameter list.
1914    o added two new verification experiments: gop and goz
1915      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1916    checkpoint46g_pre
1917    
1918    checkpoint46f_post
1919    o Enable tangent linear (forward mode) gradient checks:
1920      - extended active file handling to g_... files
1921      - added TANGENT_SIMULATION to theSimulationMode
1922      - extended grdchk package accordingly
1923    o added tangent linear setup in verification/carbon/code_ftl
1924    o added adjoint setup in verification/front_relax/code_ad
1925    
1926    checkpoint46e_post
1927    o Added new equation of state -> MDJWF
1928      - EOS of McDougall et al., 2002, JAOT, submitted
1929      - caveat: the equation of state is only valid for a smaller (more
1930        realistic?) range of values than JMD95P/Z and UNESCO
1931      - added masks to the calculation of pressure in store_pressure
1932      - added more check values for density in check_eos (ini_eos.F), some of
1933        the old check values are out of the range of the MDJWF-eos, so don't
1934        expect perfect matches for those
1935    checkpoint46e_pre
1936    
1937    checkpoint46d_post
1938    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1939      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1940      case of pressure coordinates. eosType='JMD95Z' in
1941      combination with buoyancyRelation='OCEANICP' now causes an error.
1942    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1943      in find_alpha/beta.
1944    checkpoint46d_pre
1945    
1946    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1947      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1948    
1949    checkpoint46c_post
1950    o Changes necessary for ocean in p-coordinates
1951     -  Added new buoyancy relation = 'OCEANICP'
1952     -  Added new parameters = gravitySign (this used to be contained inside
1953        the factor dRdZ which I added when we first switched to R coordinates).
1954     X GM/Redi is not compatible (yet)
1955     X bottom drag and no-slip need to be debugged.
1956    checkpoint46c_pre
1957    
1958    checkpoint46b_post
1959    o Added new equation of state -> JMD95Z and JMD95P
1960      - EOS of Jackett and McDougall, 1995, JAOT
1961      - moved all EOS parameters into EOS.h
1962      - new routines ini_eos.F, store_pressure.F
1963    o Added UNESCO EOS, but not recommended because it requires
1964      in-situ temperature (see JMD95)
1965    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1966      unesco.f to be used with POLY3
1967    checkpoint46b_pre
1968    
1969    checkpoint46a_post
1970    o Added (atmospheric) pressure loading
1971      - new field in FFIELDS.h, etc...
1972      - new cpp flag ATMOSPHERIC_LOADING
1973    o Changed hFacC to _hFacC in calc_phi_hyd.F
1974    o Added SHORTWAVE_HEATING to some files for consistency
1975    checkpoint46a_pre
1976    
1977    checkpoint46
1978    further merges from release1_p5
1979    o new ctrl package
1980      - adopted from ECCO environment to enable optimization
1981      - added Eliassen Palm fluxes to controls
1982    o added Eliassen Palm flux controls to gradient check package
1983    o cost package
1984      - Compatible with new ctrl package
1985      - added Eliassen Palm cost hooks
1986      - modif's of existing cost functions
1987    o Adjoint-related bug fixes in kpp:
1988      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1989      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1990    o autodiff package
1991      - flow directives:
1992        + new for S/R do_the_model_io
1993        + enhanced for S/R checkpoint
1994        + new gmredi.flow
1995      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1996        disable adcommon.h/g_common.h by default.
1997      - fixed problem for adjoint of global_max
1998    o modified verification/carbon/
1999    o New setup for adjoint of global_ocean
2000    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2001    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2002    o incorporated hooks for sponge layer code (external_forcing.F)
2003    
2004    checkpoint45d_post
2005    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2006    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2007      (affects plume_on_slope "cg2d" output)
2008    o add new parameter deltaTfreesurf for free-surface time stepping
2009    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2010    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2011    o change phiMin in exp1 (to agree with documentation)
2012    o add new flags:
2013     - T,S forcing inside/outside Adams-Bashforth
2014     - turn off temp,salt advection and/or forcing
2015     - for each tracer, define internal flag for multiDimAdvection & A-B
2016    o monitor: change definition of KE to check conservation of Energy
2017    
2018    checkpoint45c_post
2019    o Removed f90 comments ("!")
2020    o Modified initialisations to enable exf package for MITgcm
2021      (without invoking ECCO_PACKAGE).
2022    o modifications to gradient check package (Martin Losch)
2023      - enable centered differences
2024      - modified format of standard output
2025    
2026    checkpoint45b_post
2027    o cleaned exchange calls in cg2d
2028    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2029    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2030      to configure barotropic setup (Martin Losch)
2031    o moved some initialisations within bi,bj loop in dynamics
2032      (TAF flow dependency)
2033    o in initialise_varia, moved call packages_init_variables
2034      before convective_adjustment_init
2035      (corresponding adjustment of TAF tape initialisation).
2036    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2037    
2038    checkpoint45a_post
2039    o compute Rho over the whole domain (extend iMin,jMin indices)
2040    o specific exchange for X-slice domain (case Ny=1)
2041    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2042    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2043    
2044    checkpoint44h_post = checkpoint45
2045    o Fix to restore differentiability:
2046      place at which packages_init_variables is called in
2047      initialise_varia is crucial for reverse control flow.
2048    o modifications in GMRedi to enable stable adjoint
2049      (corresponding modif's in thermodynamics, dynamics)
2050    o added missing hook for sponge layer code in external_forcing
2051    o modified test cost functions
2052    o storing in gad_advection (plus removal of write(0,*)!
2053    o missing headers TR1.h added in convective_adjustment routines
2054    o errorMessageUnit set non-equal zero in eeboot
2055      (conflict on some platforms, e.g. IBM SP3)
2056    o modified carbon verif.
2057    
2058    checkpoint44h_pre
2059    o vertical grid option: allow to put the Interface at the middle between
2060      2 cell-centers ; replace delZ in pkg/kpp by drF.
2061    o GM Advective form: Tracers are advected using the residual transport (=
2062      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2063    
2064    checkpoint44g_post
2065    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2066      results) ; ifdef missing in thermodynamics.F
2067    
2068    checkpoint44f_pre,checkpoint44f_post
2069    o added PTRACERS package
2070      This allows an arbitrary number of passive tracers to be integrated
2071      forward simultaneously with the dynamicaly model.
2072      + Implemented so far:
2073        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2074        - I/O and checkpointing
2075        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2076      + Not implemented so far:
2077        - KPP
2078        - OBCS
2079      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2080        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2081        line in data.pkg.
2082      + This package is disabled by default since it increases storage.
2083    
2084    
2085    o testscript: added -cleanup option
2086    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2087                 b) enable to filter 2D fields.
2088    
2089    checkpoint44e_pre,post
2090    o re-wrote convective adjustment to use pre-calculated weights
2091      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2092      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2093      Original calls to convect() still in place.
2094    
2095    chkpt44d_pre,post
2096    o added missing EXCLUDE_MONITOR flags
2097    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2098      (incompatible typ in MIN/MAX expressions caused problems
2099      on IBM SP3)
2100    o in genmake added variable MAKEDEPEND
2101      plus resetting for case SunOS
2102    o added timer_stats.c routine for IBM SP3
2103    o removed variables in dynamics
2104    !!! I forgot to create tag chkpt44d_pre !!!
2105    !!! But chkpt44d_pre = chkpt44c_post    !!!
2106    
2107    o real fresh water flux implemented with non-linear free-surface.
2108    
2109    chkpt44c_pre,post
2110    o few fix (mask in shap_s2, EmPmR in external_field_load,
2111      USE_NATURAL_BCS in solve_for_P);
2112    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2113    
2114    checkpoint44b_pre/_post
2115    o merge of relevant stuff from the ecco-branch:
2116      - genmake: removed $S64 overwrite for case SunOS
2117      - pkg/exf: update and corrections for field swapping and obcs
2118      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2119                  harmonized between ECCO and MITgcm
2120      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2121                      updated checkpointing_lev... lists for obcs
2122      - model/src: minor changes in forward_step, plot_field
2123                   added directive for divided adjoint in the_main_loop
2124      - pkg/mdsio: added mdsio_gl_slice
2125    
2126    o check parameters & config (chkpt44a_pre,post)
2127    o OBC and NonLin_FrSurf.
2128    
2129    checkpoint44
2130    o fix bug in mom_vi_del2uv
2131    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2132    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2133    o update AIM experiments (NCEP input files)
2134    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2135    o added some stuff for AD
2136    
2137    checkpoint43
2138    o added two new advection tests
2139    o added global 4x4 degree ocean test
2140    o added test of H&S94 with free surface on cube
2141    o some final mods for gradient check, adjoint,...
2142    
2143    checkpoint42
2144      Fixed AD-related problems:
2145    o Store directives up-to-date with re-arranged Adams-Bashforth
2146      (mainly thermodynamics.F)
2147    o New store directives for multi-dim. advection schemes
2148      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2149      * new common block and key passkey
2150      (mainly gad_advection.F)
2151    o Modified store directives for split of dynamics/thermodynamics
2152      for the case ALLOW_KPP
2153    o Cleaned argument list for timestep_tracer.F
2154    
2155    checkpoint41
2156    o re-formatted/added comments in prologues of key subroutines
2157      to work with protex
2158    
2159    checkpoint40
2160    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2161    o added FLT (floats) package from Arne along with demo. experiment
2162    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2163      implementation of forward-in-time forcing terms
2164    o more mods for non-linear free-surface including new variable
2165    o modified multi-dim method to work on cube
2166    o bug fix in KPP (from DM)
2167    
2168    checkpoint40pre9
2169    o added DST advection schemes
2170    o fix MPI bug on SGI's
2171    o modifications for non-linear free-surface
2172    o fixed conditionals for fixed flow/passive tracer only mode
2173    o added tension/strain form of stress tensor
2174    o changes to commenting of arguments for TAF/TAMC
2175    o added/updated many matlab scripts
2176    o added multi-dimensional advection method for tracers
2177      
2178    checkpoint40pre8
2179    o new package rw/
2180      Added method for dumping intermediate local arrays:
2181      mdsio_writetile - same as mdsio_writefield except works from inside
2182                        bi,bj loop
2183      mdsio_writelocal - same as mdsio_writetile except works for local
2184                         arrays
2185      write_local_r? - higher-level wrapper for mdsio_writelocal
2186      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2187      Example given at end of mom_vecinv.F that dumps some local arrays.
2188    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2189      control flux-form versus vector invariant code.
2190      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2191      or genmake -DISABLE ...
2192    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2193      (additional storing is now needed for case vecinv;
2194      currently nothing implemented to switch this storing off
2195      in case fluxform is used since no CPP flag available).
2196    
2197    checkpoint40pre7
2198    o bug fix in dynamics.F
2199      calc_viscosity called before k=1,Nr loop.
2200    o added some #ifdef's ALLOW_PASSIVE_TRACER
2201    o cleaned initialisations in ctrl_map_ini
2202      related to TAF
2203    
2204    checkpoint40pre6
2205    o split dynamics into thermodynamics & dynamics
2206    o corresponding split of calc_diffusivity into
2207      calc_diffusivity, calc_viscosity
2208      (kpp_calc_diff, kpp_calc_visc).
2209    o Added diffkr, kapgm to control variables
2210    o bug fix in gmredi_slope_limit for ldd97
2211    
2212    checkpoint40pre5
2213    o proper initialization of Adams-Bashforth time stepping
2214      + uses forward step for very first step of model (iter=0)
2215    o re-generated *all* output since almost all output is modified by this
2216      change (sorry but we've been putting this one off for about 2 years)
2217      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2218        *not* regenerated since they are already out of date and I don't
2219        want to create the impression that they are suddenly working.
2220    o removed KAP stuff for DEC's
2221    o modified/added many .cvsignore files in */code and */input
2222    o added new expt "solid-body.cs-32x32x1"
2223      + this uses an alternative form of ini_curvilinear_grid.F which
2224        is not necessarily any better than the current one...
2225    
2226    checkpoint40pre4
2227    o added re-initialisations of utrans,vtrans,rtrans in
2228      calc_common_factors which are crucial for TAF.
2229    o extended iMin,jMin range for calc_common_factors,
2230      calc_diffusivity
2231    o added option ALLOW_PASSIVE_TRACER
2232    o a few minor updates and fixes
2233    
2234    checkpoint40pre3
2235    o created calc_gtr1.F for gad package
2236    o split the_main_loop and re-introduced forward_step
2237    o some recomputations of nIter0 for TAMC
2238    
2239  checkpoint40pre2  checkpoint40pre2
2240  o Updated to latest branch of AJA, JMC  o Updated to latest branch of AJA, JMC
2241  o Added gradient check package  o Added gradient check package

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