/[MITgcm]/MITgcm/doc/tag-index
ViewVC logotype

Diff of /MITgcm/doc/tag-index

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph | View Patch Patch

revision 1.8 by adcroft, Wed Jul 1 22:49:29 1998 UTC revision 1.581 by heimbach, Thu Nov 24 00:07:29 2005 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o Non-Hydrostatic:
8     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
9     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
10    o Allow to apply AB on T,S rather than on AB(gT,gS):
11     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
12     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
13       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
14     - need a "clever" read_pickup to restart from the other AB formulation
15    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
16    o remove some unused variables (reduces number of compiler warnings)
17    o adjoint
18      * Disable useVariableViscosity for adjoint for time being
19        (there are a number of extensive recomputations)
20      * Initialize certain variables needed for adjoint
21    
22    checkpoint57w_post
23    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
24                 fix the singleCpuIO RS version of MDSWRITEFIELD
25       and add a WARNING if using globalFiles=T with multi-processors.
26    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
27      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
28    o tracer advection scheme:
29      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
30       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
31       was not very convenient).
32      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
33       (further tests needed for the implicit DST & Flux-Limiter schemes).
34    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
35      and sRef for convenience, handy, when you want to initialize
36      ptracers in a large domain with a constant non-zero value. Also,
37      untangle ptracers_init.F a little.
38    
39    checkpoint57v_post
40    o change dome exp. to use variable viscosity in side-drag terms.
41    o remove all the files from the cfc_offline test since they are now
42      incorporated into tutorial_cfc_offline which has been producing
43      identical results for a few days of testing
44    o add new parameter: sideDragFactor to enable half-slip-side BC
45      and change side-drag S/R to use viscosity from mom_calc_visc
46      (can switch back by setting sideDragFactor=0.); affects results at
47      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
48       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
49    o vorticity & strain are now computed without masking, to account for
50      no-slip-side BC in variable viscosity calculation ; mask is applied
51      anyway later on, before computing advection/coriolis terms.
52    o modify exp4 to test new obcs support for reading from external files
53      and for passive tracers
54    o fix behavior of ptracers_monitor when monitor output is written to a
55      netcdf-file; still not independent of monitor.F (writes in the same
56      file).
57    o change default value of tRef (put a uniform, meaningful value for ocean
58      & atmos) and initialize sRef (was missing, as Martin mentioned).
59    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
60      to be proportional to enstrophy dissipation length.  Thus,
61       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
62      This is now consistent with Smagorinsky and with the manual.
63    
64    checkpoint57u_post
65    o OBCS and PTRACERS: add open boundary support for passive tracers
66      - either use homogenous (pseudo) v.Neumann conditions or prescribe
67        OB-values from file; this is not different from the way theta and salinity
68        are treated
69      - however, Orlanski-radiation conditions are not supported, and the model
70        will stop if you use pTracers and Orlanski at the same time.
71      - beefed up the rountine obcs_external_fields_load: now only those open
72        boundary values are overwritten with values from files for which there
73        are really files, otherwise the OB-fields remain untouched. This makes
74        it possible to use different OBs at different ends of the domain (as
75        with EXF)
76    o reduce number of exch calls in shap_filt (s2).
77    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
78      truncation level) 4/5 MLAdjust test results (11&12 digits match).
79    
80    checkpoint57t_post
81    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
82    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
83      same truncation, independent of the face number: affects affects several
84      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
85    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
86      note that biharmonic viscosity + no-slip was not tested in any experiment.
87    o fix bug in non-linear free-surf side-drag ; generate new output for
88      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
89    o make mnc honor the writeBinaryPrec flag for most kinds of output
90    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
91    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
92      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
93    o add brackets in multi-terms sum to get same truncation, independent of
94      the face number (manage to get exactly same value of gU,gV at the cs-edge)
95      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
96    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
97      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
98      a maximum grid-scale Reynolds number.  Also, changes all length calculations
99      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
100      Suggested values of viscosity parameters found in mom_calc_visc.
101      Many new viscosity diagnostics available.
102    
103    checkpoint57s_post
104    o Add clearing-house for viscosity calculations, mom_calc_visc and
105      correct numerous bugs in LeithD and Smagorinsky discretizations.  
106      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
107      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
108      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
109      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
110      The Strain-Tension form is now called with useStrainTensonVisc=.true.
111      ViscAhStrain and viscAhTension are now retired.
112    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
113    o In response to JMC's bug report, genmake2 now ignores any soft-links
114      that it finds in the *current* directory when searching for files.
115      Soft-links found in any other source directories will still work as
116      they did before.
117    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
118      a C routine to unlimit the stack size
119    o mnc-ify pkg/aim snapshot vars
120    o mnc-ify pkg/land as requested by Daniel
121    o various changes to mnc including:
122      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
123      - output can now be grouped so that all files within a group
124          change the ITER portion of their names in lock-step together
125      - can now read ("global") PER-FACE (in addition to PER-TILE) files
126          and works with both EXCH1 and EXCH2 (but needs more testing)
127      - writing works for all verification test cases w/ g77 on Linux
128    
129    checkpoint57r_post
130    o make MNC variable initialization happen earlier
131    o add diagnostics for (almost) each term of the momentum Eq.
132    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
133    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
134    o remove MINIMAL_TAVE_OUTPUT option ;
135      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
136    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
137      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
138    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
139    o add time-dependent SST, SSS control
140    o cost terms in ecco/ modularized (new cost_generic.F)
141    o cost_averages routines are modularized (new cost_averagesgeneric.F)
142    o new infrastructure for seaice model vs. obs misfits in seaice/
143      * driver from the_main_loop.F is seaice_cost_driver.F
144      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
145      * gradient check in Exp. 6a of natl_box_adjoint/
146    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
147      (see README file)
148    
149    checkpoint57q_post
150    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
151    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
152      - bug was reported by Jean-Michel and Ian Fenty
153    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
154      update exp. cpl_aim+ocn output.
155    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
156      Needed for high-res. runs with large global files
157      to be able to limit tapelev size
158    o Changed some tests for adjoint:
159      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
160      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
161      * global_ocean.90x40x15/ back to default 3-level checkpointing
162    o Modifications to enable scripted COMMON to MODULE conversion
163      * verification/OpenAD/code/ has necessary scripts and description;
164      * converts, compiles and runs successfully;
165    
166    checkpoint57p_post
167    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
168    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
169      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
170    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
171    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
172      (was already the case for dissipation with mom_vecinv,
173       and also the case for grad.PhiHyd when staggered-timeStep)
174      This will allow to put dissipation out-off the AB time-stepping.
175     Unfortunately, affects truncation error. Update output of exp. that "fails"
176      (cg2d matching number) and leave the others for later: front_relax(10),
177      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
178      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
179    
180    checkpoint57o_post
181    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
182      (2) its ready to be documented during the 20050801 DocFest
183    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
184      for ideal_2D_oce and lab_sea on linux_ia32_g77
185    o set to #undef CTRL_SET_OLD_MAXCVARS_30
186      in global1x1_tot/code_seaice_adj to access indices 32, 33
187      (worth another tag)
188    
189    checkpoint57n_post
190    o adding precip control xx_precip 32
191    o adding swflux control xx_swflux 33
192    o Replacing 10 forcing penalty cost routines by 1 generic.
193    o Implementing partitioning in time-mean and variable adjustment
194      for atmos. state.
195    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
196    o in natl_box_adjoint:
197      * updated exp 1 to 10
198        (but does not have time-mean vs. variable split results yet)
199    o updated global1x1/*_seaice_adj/
200      to incorporate latest changes
201    o enable useSingleCpuIO for mdsio vector routines
202      (applies in particular to tapelev I/O)
203    o removed inefficient K-loop in all active_file*control*.F
204    
205    checkpoint57m_post
206    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
207      and advect_cs (use EXCH-2 and standard cs-32 grid files).
208    o pkg/exch2: filling of face-corner halo regions is optional
209      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
210    
211    checkpoint57l_post
212     tag before updating tutorials (pre-release-2)
213    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
214       for output and interpolation of input fields onto model grid)
215    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
216       Affects results of exp. rotating_tank ; update output.txt.
217    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
218          and taking the square quantity and/or using a fraction-weight field.
219    o fix aim_diagnostics_init.F mate numbers.
220    o add mnc output capability to diagnostics/diagstat and update
221      our cvsignore files for the ACSII output generated
222    
223    checkpoint57k_post
224    o lab_sea now uses diagnostics package and provides a suite of
225      new EXF diagnostics output.
226    
227    checkpoint57j_post
228    o exf
229      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
230        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
231        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
232      * extended diagnostics output
233        - now includes all EXF variables
234        - hs, hl moved to common block
235        - separate S/R for diagnostics, called after ctrl vector is added
236        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
237        - EXFqnet contains true Qnet (i.e. includes qsw)
238      * updated verif. lab_sea, global_with_exf
239      * Rearranging hflux (exf_mapfields -> exf_getforcing)
240        to ensure that diagnostics sees a true EXFqnet
241    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
242    o diagnostics pkg: change pointers so that 1 diagnostic can be used
243      several times with different frequencies.
244    o mnc-ify the thsice package as requested by Daniel Enderton
245      - the monitor--MNC output needs work
246      - many attributes need to be added (most are currently blank)
247    o mnc-ify theaim_v23 package as requested by Daniel Enderton
248      - many attributes need to be added (most are currently blank)
249    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
250    o add Sadourny like discretization to the 4th.O vorticity advection scheme
251    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
252      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
253         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
254    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
255     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
256    
257    checkpoint57i_post
258    o Diagnostics package was changed: diagnostic allocation is now deactivated
259      by setting an empty file name in the namelist (used to be by setting 0 frequency)
260    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
261      add 1rst Order upwind vertical Shear.
262    o add a quick fix for A/B checkpointing in OFFLINE mode
263    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
264      end-run around the C/Fortran linking horror in eesup/src/timers.F
265    o added pkg/runclock: allows user to terminate run based on wall clock
266    o added non-hydrostatic scaling parameter: nh_am2
267    o pkg/my82: futile attempt to make results compiler-independent by adding
268      some "_d 0", etc. no effect.
269    o for mnc output, fill the 'T' coordinate var with myTime and create a
270      separate 'iter' variable for iteration count
271    o pkg/diagnostics:
272      add new capability: output of Global/Regional & per-level statistics ;
273      tested against monitor output (including land & thSIce) on various exp.
274    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
275    
276    checkpoint57h_done
277      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
278      data.diagnostics, data.gchem, data.ptracers) is done.
279    
280    o pkg/diagnostics: prepare for Global/Regional statistics.
281      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
282    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
283      and rename it: DIFFERENT_MULTIPLE
284    
285    checkpoint57h_post
286    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
287    o pkg/diagnostics: change output frequency, now in seconds (instead
288      of Nb of iterations). This requires to change data.diagnostics.
289    checkpoint57h_pre
290    
291    o in mnc, let the user create the output dir if both mnc_outdir_date
292      and mnc_outdir_num are false
293    o add fflags() to pkg/diagnostics which allows one to specify, on a
294      per-file basis, the file precision [default behavior is unchanged]
295    o added diagnostics to pkg/kpp, including computation of mixed layer
296      depth based on a temperature/density criterion
297    o updated verification/natl_box to test the new pkg/kpp diagnostics
298    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
299    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
300    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
301      not mnc -- this mistake was found by JMC and is now corrected
302    
303    checkpoint57g_post
304    o add Adams-Bashforth 3rd Order time stepping:
305      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
306      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
307    checkpoint57g_pre
308    
309    o make lambda[Theta,Salt]ClimRelax spatially varying
310      (default remains spatially uniform constant based on tau)
311    o added new control variables
312      * init. uVel, vVel, etanN
313      * lambda[Theta,Salt]ClimRelax
314    o separate masks used for ctrl_pack/unpack 'from write_grid' output
315      (suggested by G. Forget)
316    
317    checkpoint57f_post
318    o add parameter "baseTime" = model base time = time at iteration zero
319      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
320      account for baseTime shift
321    o move Coriolis arrays from PARAMS.h to GRID.h
322    checkpoint57f_pre
323    
324    o mnc-ifying the seaice package
325    o introduced an alternative length scale calculation for use in the limiting
326      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
327    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
328    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
329      as well as grad(vort3).  Made it compatible with both approximate form
330      for the cubed sphere and full form of these gradients.  Added flag
331      useFullLeith to select between approximate and full form.  
332    o add "d0" in getcon.F to reduce differences between compilers/platforms
333      update output.txt of exp. fizhi-gridalt-hs
334    o change port_rand funtion to allow to set the seed.
335    o fix obscure MNC bug involving conversion between reals and integers
336      - it caused no problems with certain (eg. gcc, ifc) compilers but the
337        new version is now more standards-compliant
338    o adjoint-related modifications
339      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
340      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
341      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
342    
343    checkpoint57e_post
344    o Adding eddy stress controls a la Ferreira et al.
345    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
346    
347    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
348      update output.txt of exp. fizhi-gridalt-hs
349    o add more "Z" dimensions and associated coordinate vars to MNC
350    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
351    o parameter calendarDumps: when set, approximate months (30-31 days) and years
352      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
353      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
354      months and years.  Requires pkg/cal.
355    o diagnostics: add pickup functionality
356      - off by default for backwards compatibility
357      - current version only uses MDSIO -- MNC will be added
358    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
359    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
360    
361    checkpoint57d_post
362    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
363    o modify verification/ideal_2D_oce so that it tests the creation of mnc
364      output from the diagnostics package
365    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
366    o make genmake2 more portable by using ".$FS" instead of ".f" for more
367      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
368    o add coordinate variables to the MNC output from the diagnostics package
369    o change MNC-flags default value: true when useMNC=TRUE
370    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
371      the ability (off by default) to read the grid information using MNC
372    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
373    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
374    o do snap-shot diagnostics at the middle of the time-interval (instead of
375      at the end).
376    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
377      new test for AIM with thSIce + slab-ocean
378    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
379    o move state variable diagnostics to the beginning of the time step ;
380      (note: still needs some work specially for snap-shot diagnostics)
381      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
382    
383    checkpoint57c_post
384    o Change testing option (-ieee) to get closer agreement between g77 & ifort
385    o generate new output.txt files on faulks with g77 & the new -ieee option
386    checkpoint57c_pre
387    
388    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
389      update output.txt of exp. global_ocean.90x40x15
390    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
391      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
392    o add saltFlux(+File) forcing capability with periodicExternalForcing
393    o allow to use pkg diagnostics for GM-Redi & ThSIce output
394    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
395    o improvements for the MNC output from DIAGNOSTICS:
396      - correct handling of the unlimitied dimension
397      - all dims now have associated coordinate variables
398      - variables located at U, V, and Corner ("Z") points are now written
399        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
400        *all* data points are output
401    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
402    o added pkg/seaice/seaice_monitor.F
403    o mdsio_readfield.F can now read files visible only to master MPI process.
404    o pkg/seaice: some test code for ice-modified ocean stress
405    o exf_getffields interpolation defaults to bilinear for all scalar forcing
406      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
407      spurious negative numbers for precipitation and humidity.  Will cause
408      some small numerical differences for integrations using pkg/exf/exf_interp.F.
409    o pkg/ctrl/
410      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
411        May be enabled via doPackDiag
412      *  introduce z-scaling of
413         + gradient (doZscalePack) and
414         + control (doZscaleUnpack)
415    o pkg/mdsio/
416      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
417      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
418    
419    checkpoint57b_post
420    o simplify options in diagnostics_fill arguments (remove weird combinations)
421    o fix MNC coordinate variables so that they now contain per-face index
422      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
423      general, EXCH2 grids are only aligned to a "local" coordinate system
424    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
425    o Implement instantaneous output within pkg diagnostics:
426      setting a negative frequency in data.diagnostics produces
427     "snap-shot" output (as opposed to time-average if freq > 0)
428    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
429      NOTE: change ptracer diagnostics name: use 2 characters to work with
430            more than 9 tracers. Add also diagnostics of advect & diffus flux.
431    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
432      becomes the coordinate variable for the 'T' dimension
433    o add CF-style coordinate variables to MNC
434      - just a first cut:  numbers are meaningless on the cubesphere and
435        missing along the T axis but otherwise it works!
436    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
437    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
438    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
439      this is based directly on what the model compute, so that the content of
440      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
441    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
442    o clean up build options files for SunOS, in particular
443      - remove -traditional from xmakedepend
444      - change -xarch=v9 to -xarch=native for f77
445      - restore use of make (not gmake)
446      - add CC=gcc if using g77
447    o changes per discussion of AM, JMC, & EH3 today:
448      - move redundant "grid" variables out of "state" -- in preparation of
449        creating proper CF-style coordinate variables and in recognition
450        that any/all grid variables can be easily copied (eg. w/NCO) from
451        the grid files into any of the other NetCDF files
452      - *always* output grid variables with MDSIO (this will eventually be
453        changed)
454      - output MNC grid file if useMNC is true
455    o every instance of _END_MASTER() has been found and replaced with
456      _END_MASTER( myThid ) in order to satisfy certain picky Sun
457      preprocessors
458    o re-arrange diagnostics pkg initialisation:
459     - allow each package to extend the available diagnostics list
460     - add some checking and fix small problems (multi-threaded, ...)
461     - new S/R diagnostics_fill (replace fill_diagnostics):
462       look through the short list of active diag. (instead of the long list)
463       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
464    
465    checkpoint57a_post
466    o this set of changes restores TAMC compatibility
467      tested for global_ocean.90x40x15 adjoint on trough
468      (what a pain)
469    
470    checkpoint57a_pre
471    o some modifs in tools/build_options for sunos
472    o call ctrl_pack for ctrl at end for optimcycle=0
473    
474    checkpoint57
475    o add horizontal bi-harmonic viscosity for vertical velocity
476      - new parameter viscA4W (defaults to viscA4)
477      - affects only non-hydrostatic code
478      - to be done: no-slip lateral boundary conditions
479    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
480    o implement Implicit Vertical advection for pTracers
481    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
482      (implemented also for implicit vertical diffusion & advection)
483    o OBCS: extend application of tracer open boundary conditions
484      to a strip beyond the boundary of width Olx/Oly
485    o add call monitor to TAF set of required calls (flow directives)
486      and include in natl_box_adjoint
487    o untangle a few ifdefs related to cost, ctrl, autodiff
488      untangel a few ALLOW_ECCO_OPTIMIZATION
489    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
490      (theta2, salt2 in ecco_cost_weights)
491    
492    checkpoint56c_post
493    o OBCS as control variables
494      - update ctrl_ad_diff.list, obcs_ad_diff.list
495      - remove balance of obcs controls from default
496      - fix index bug nobcs in ctrl_init
497      - fix dummy fields filen in ctrl_pack
498      - add dummy weights for obcs
499    o lsopt: comment out fort.94 output
500    o optim:
501      - remove unnecessary header files
502      - adjusted namelists
503      - add xerbla.F to Makefile
504    o exf:
505      - multiple modifications of exf_check_range
506      - unit change in exf_init_runoff from [m/year] to [m/s]
507    o mdsio:
508      - i/o-vector change debugLevel from debLevA to debLevB
509    
510    checkpoint56b_post
511    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
512      is called from DO_THE_MODEL_IO
513      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
514      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
515      - clean up PTRACERS_WRITE_TIMEAVE a little
516    o add another verification experiment that tests both the cfc-pkg and
517      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
518      reactive tendencies treated inline with regular timestepping
519    o testreport previously did a lousy job of comparing small numbers, so
520      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
521      implemented in the little c-progam tmp_cmpnum.c which is embedded in
522      testreport.
523    o ptracers_monitor: bug fix for MPI
524    
525    checkpoint56a_post
526    o GCHEM: finish reorganizating the package
527      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
528        (introduces another 3D-array for each passive tracer, but only if
529        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
530        gchemTendency is not needed because the timestep is done separately)
531      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
532      - GCHEM is now---more or less cleanly---separate from PTRACERS
533      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
534        so clear to me how that should be done in a general way.
535    o CFC: improve formatting of output in CFC_ATMOS
536    o PTRACERS:
537      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
538        that ALL experiments with ptracers enable can be checked. This makes
539        GCHEM_MONITOR obsolete.
540      - include a runtime parameter PTRACERS_monitorFreq that defaults to
541        monitorFreq
542      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
543    o add PTRACERS (PTR0[1-5]) to testreport output
544    o exf_check_range:
545      * default changed to .TRUE.
546      * will check values for niter0 if debLevA, every timestep if debLevB
547      * STOP in exf_check_range if 'out of range'
548      * range chosen generous to allow for potential extema
549      TBD: a version with stricter range
550           permitted range would be runtime parameters
551    o GMredi:
552      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
553      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
554      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
555    o GCHEM:
556      - move call to GCHEM_FORCING_SEP, so that it is now called before
557        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
558      - introduced a useGCHEM runtime flag and applied it everywhere.
559      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
560        this flag is now only visible within GCHEM-pkg routines.
561      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
562        be replaced by a 3D array that is computed before thermodynamics; for
563        this, the tracer ID iTracer had to be included into the parameter list
564        of ptracers_forcing
565      - set up forward_step to call gchem_forcing, that will replace
566        gchem_forcing_int in ptracers_forcing
567      - cleaning up
568    o small cleaning of exch2: remove files that are also in eesupp/src
569    
570    checkpoint56
571    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
572    o mnc: cleanup "full" files--fixes out-of-memory problem
573    o ECCO-GODAE
574      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
575      * fully merged and updated from SIO code
576        windstress sign change affects
577        - exf_inscal_[u/v]stress
578        - sign of xx_tau[u/v] adjustments
579        - signs in cost_scat
580      * ctrl_get_gen: avoid update of tau[u/v] for first few days
581      * natl_box_adjoint updated and compressed
582      * 2-level checkpoint switch added
583        (tested in EXP. 1 of natl_box_adjoint)
584      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
585    o SVD
586      * first complete, non-hacked version for SVD calculations
587      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
588        performed via direct access files admtlm_vector.it????
589        (via ctrl_[un]pack)
590      * optimcycle is used for ARPACK iteration counter
591        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
592      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
593        and add linear transforms where necessary
594      * controls are initial/final SST, SSS (can be extended; need to check
595        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
596    o mdsio: filename info to both stderr, stdout
597    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
598      from sign change
599    
600    checkpoint55j_post
601    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
602      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
603    o add consistent build directories and .cvsignore files to verification
604    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
605    o make all subroutines 30 or less characters in length for certain older
606      compilers to work (a thorough search only turns up two routines in
607      pkg/ptracers)
608    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
609      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
610    
611    checkpoint55i_post
612    o change arrays for total vertical diffusivity (2.D if explicit,
613      3.D if implicit) ; each ptracer uses its own background value.
614    o added mnc/NetCDF output capability to ocn_compon_interf
615      - added bits to verification/cpl_aim+ocn so that it can run on
616        ITRDA and other clusters without the mpirun "-wd" option
617    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
618      configuration
619    o give MNC the ability to create additional files rather than
620      exceeding a specified file size limit "MNC_MAX_FILESIZE"
621      - the default is just less than 2GB which is a practical limit
622        on many systems
623    o Compute the non-local term using either KPP vertical diffusivity (=default)
624       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
625    
626    checkpoint55h_post
627    o add verification test "vermix"
628    o remove all the *_ioinc flags and replace with the single global
629      outputTypesInclusive flag
630    o allow to set a vertical profile of vertical diffusivity for T & S
631    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
632    o useMNC moved from data.mnc to data.pkg
633    
634    checkpoint55g_post
635    o Renaming carbon AD experiments to comply with testreport conventions
636    o Updating adjoint of Held-Suarez hs94.1x64x5
637    o Fixing directives for non-ECCO forward_step, after ECCO directives
638      have been fixed to avoid recomp. of do_oceanic_phys
639      Works well for global_ocean.90x40x15,
640      but recomp. issue remains for carbon
641    o Updating adjoint output for natl_box_adjoint after
642      pkg/ecco has been modified (see taga c55d_post)
643    
644    checkpoint55f_post
645    o rename to timeave_init_fixed
646    
647    checkpoint55e_post
648    o some delicate re-shuffle of store directives to avoid one
649      extra call of do_oceanic_physics
650      affects ecco_the_main_loop.F, do_oceanic_physics.F
651      checkpoint_lev1_directives.h
652    o NB: this may break global_ocean adjoint temporarily,
653      but it is clear how to fix it. Will do later, need this now.
654    
655    checkpoint55d_post
656    o ECCO specific cost function terms (up-to-date with 1x1 runs)
657    o ecco_cost_weights is modified to 1x1 runs
658    o modifs to allow observations to be read in as
659      single file or yearly files
660    o enable to read exf forcing fields as either
661      single file or yearly files (flag useExfYearlyFields)
662    checkpoint55d_pre
663    
664    o switch between 2-level and 3-level checkpointing
665    o add ability of MNC to write local and "partial" (eg. 2D slices where
666      the full 3D field is never actually stored) arrays to NetCDF files
667      with the correct (that is, the complete multi-dimensional) set of
668      array indicies
669      - used in mom_vecinv() to write the diagFreq output
670      - tested (demonstrated) in verification/aim.5l_cs
671    o further mnc-ification
672      - add verification/lab_sea to the list with mnc setups
673      - fix undefined mnc v-names in cd_code
674      - add kpp to mnc output (both snapshot and timeave)
675    o non-hydrostatic code
676      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
677        in calc_gw.F
678      - defaults to viscAh
679      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
680        friction or Leith) in non-hydrostatic mode, as long as there is
681        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
682    o pkg/cost
683      extend simple cost functions to treat time mean quantities
684      (T,U,V) via cost_accumulate_state from cost_tile
685    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
686        be 2 times larger than the minimum size the advection scheme requires.
687        now get a perfect conservation of salt in advect_cs test-exp (updated)
688    o GGL90 (Gaspar's TKE mixed layer)
689      - add horizontal diffusion of TKE, requires exchanges in
690        do_fields_blocking_exchanges, horizontal diffusivity is zero by
691        default. In OPA there is no horizontal diffusion of TKE but the
692        mixing coefficients are computed from a horizontal average of TKE of
693        6 points or so. I think that diffusion has a little more physical
694        justification.
695      - clean up ggl90_calc in the hope of reducing memory usage (this hope
696        was in vain)
697      - mask tke-variable in ggl90_init
698    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
699    o fix biharmonic diffusion on CS-grid.
700    o more obcs stuff
701      - added obcs_external_fields_load as an alternative to the EXF-pkg option
702        for reading boundary values. This routine is called from
703        obcs_prescribe_read
704      - updated obcs_check
705      - changed sponge layer relaxation parameter units for days to seconds
706      - turned off sponge layer by default
707      - changed argument list of OBCS_CALC to myTime+deltaTclock
708      - fixed about 35 bugs in obcs_external_fields_load
709    
710    checkpoint55c_post
711    o obcs stuff
712      - new runtime flags useOBCSprescribe, useOBCSbalance
713      - re-arranged obcs_calc
714      - moved exf_getobcs to obcs_prescibe_read
715        obcs_prescibe_read is called after ORLANSKI stuff
716        and independent of it (executable can contain all).
717      - updated obcs_check
718      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
719        These may be necessary only if tangential velocities are
720        prescribed at OB, not sure, needs testing.
721    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
722      which simplifies the calls and passes the ifc check-bounds test
723    
724    checkpoint55b_post
725    o add a 2D scalar, Z location, exchange_2 routine.
726    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
727      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
728      affects advect_cs results (for the wrong reason): update output.txt
729    o use a more standard discretization for biharmonic viscosity ;
730     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
731      affects results of dome set-up: update output.txt
732    o fix gad_advection.F (CubedSphere part), back to version 1.23
733    o fix bug in mom_vi_del2uv.F (CubedSphere part).
734    
735    checkpoint55a_post
736    o merged code to
737      * prescribe/read time-dependent open boundaries
738        (works in conjunction with exf, cal)
739      * sponge layer code for open boundaries
740      * each boundary N/S/E/W now has its own CPP option
741        (healthy for the adjoint)
742    
743    checkpoint55
744    o up-to-date adjoint of previous breaks
745      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
746      - global_ocean_ebm: adjoint still needs fix (TLM ok)
747      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
748      - carbon: * remove tr1-related adjoint verification
749                * add ptracer as control variable
750    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
751      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
752    
753    checkpoint54f_post
754    o in verification/carbin/ remove experiment related to
755      ALLOW_PASSIVE_TRACER (array tr1 etc)
756      code_ad/ input_ad/ results_ad
757    
758    o add two new packages
759      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
760        + subject to optimization (memory)
761      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
762        + subject to reordering (many GOTOs in the original code)
763        + so far opps is called for every (i,j) point, and then operates in
764          the vertical; one may want to reorder the scheme in order operate in
765          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
766          fields)
767    o overhaul of IO so that we now have flags for MDSIO and/or MNC
768      - all verification tests compile and run with linux_ia32_g77
769      - defaults are compatible with current input files--nothing
770        should change if you were not previously using MNC
771      - MNC output has been added in numerous places (eg. timeave)
772        but there are still a few writes not yet do-able with MNC
773        (this is in progress)
774      - flags now allow for either/or/both use of MDSIO and MNC and
775        documentation will soon follow
776      - numerous small formatting cleanups for ProTeX
777    o add version info (via BUILD_INFO.h) to MNC and stdout
778    
779    checkpoint54e_post
780    o add two new packages
781      - pp81 (Packanowski and Philander, 1981), Richardson number and
782        stratification dependent mixing
783      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
784      - these scheme operate in a similar manner as KPP (without ghat, of
785        course), however there is only one diffusivity that is used for both
786        temperature and salinity (and passive tracers)ç
787    o add offline package
788    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
789      provided by Stephanie Dutkiewicz
790    o genmake2: add ability to search for C compilers and cleanup test output
791      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
792    
793    checkpoint54d_post
794    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
795    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
796      leading to additional shift by 5 days each year of integration
797       (i.e. leading to considerable offset over the years)
798    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
799    o start with no AB and no initial filtering (staggerTimeStep):
800      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
801    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
802      (external loading & cpl import/export stay in forward_step.F)
803    o update coupling interface to work with new staggerTimeStep
804    o change MDSIO ptracers_pickup.
805    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
806    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
807    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
808    
809    checkpoint54c_post
810    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
811      this affects (truncation error) output.txt of test-exp:
812       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
813    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
814    o change Qnet to always be the net heat flux, (+upward).
815      affects (truncation error) output of natl_box exp.: updated
816    o define the max number of passive tracers in PTRACERS_SIZE.h
817    o start to test mnc routinely in exp0
818    o add sea-ice loading (sIceLoad) as a new forcing field.
819    
820    checkpoint54b_post
821    o add testreport "-j JOBS" option for parallel builds (tested and pretty
822       impressive on Altix and Opteron systems)
823    o diagnostics can now write NetCDF files through the mnc package
824    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
825    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
826    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
827      affects (truncation error) output of lab_sea & natl_box exp.: updated
828    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
829    
830    checkpoint54a_post
831    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
832    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
833    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
834    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
835      + internal_wave (shift in writing cg2d_ini_res)
836    checkpoint54a_pre
837    
838    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
839      - modified verification/lab_sea and natl_box_adjoint accordingly
840    
841    checkpoint54
842    checkpoint53g_post
843    o prepare splitting of thermodynamics: store convect.counter in common block
844    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
845      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
846    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
847    o new parameter "nShapS": allow to treat differently S from T (nShapT)
848    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
849    o restore adjointability
850    
851    checkpoint53f_post
852    o modifications that affect AIM experiment results (update output.txt):
853      - no advection of S at top interface Nr (pkg/generic_advdiff)
854      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
855    o AIM pkg:
856      - include stability function into surf.Flux derivative relative to Tsurf
857      - calculate clear-sky radiation & surface temp. change (for diagnostics)
858    
859    checkpoint53e_post
860    o merged cylindrical coord configuration
861    o added rotating_tank experiment
862    checkpoint53e_pre
863    
864    checkpoint53d_post
865    o faulks upgraded: re-generate output.txt that have changed:
866       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
867    o Added Bryan and Lewis, 1979, vertical diffusivity profile
868    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
869    o added Sadourny discretization of Coriolis
870      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
871      - re-enabled use of omega3 (useAbsVorticity)
872    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
873      vector-invariant equations
874      - note: does *NOT* yet use same variable visc. for no-slip BC's.
875    o recoded the lateral boundary conditions for non-hydrostatic w, this time
876      hopefully without new bugs
877      - still to do: biharmonic friction for non-hydrostatic w
878    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
879    o regenerated output for global_ocean_ebm (using -ieee)
880    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
881      of mom_common/
882      - simple re-arrangement of instructions within computing loop
883    checkpoint53d_pre
884    
885    checkpoint53c_post
886    o new version of coupler for AIM+thSIce and Ocean models
887     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
888     - land: change Evaporation of snow
889     - aim with thSIce: fix bug in snow-precip.
890    o changes to calc_gw.F
891     - bug fix for w^2 term near the bottom boundary
892     - (hopefully) improve the lateral slip boundary condtions for use with
893        partial/looped cells
894      - because the bug fix changes two verification experiments anyway (exp5
895        and plume on slope), change the lateral boundary condition from half slip
896        to the value of no_slip_sides
897    o ebm package wasnt quite up to the parallel task. Fixed that.
898    o Adjoint of EBM package + verification
899      * TLM OK
900      * ADM not sufficient accuracy yet (needs further testing)
901    
902    checkpoint53b_post
903    o Commiting new energy balance model to repository
904      * package is pkg/ebm
905      * verif. is verification/global_ocean_ebm
906      * references are in ebm_driver.F
907    C      * X. Wang, P. Stone and J. Marotzke, 1999:
908    C        Global thermohaline circulation. Part I:
909    C        Sensitivity to atmospheric moisture transport.
910    C        J. Climate 12(1), 71-82
911    C      * X. Wang, P. Stone and J. Marotzke, 1999:
912    C        Global thermohaline circulation. Part II:
913    C        Sensitivity with interactive transport.
914    C        J. Climate 12(1), 83-91
915    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
916    C        Destabilization of the thermohaline circulation
917    C        by atmospheric eddy transports.
918    C        J. Climate 7(12), 1870-1882
919    o Will need long integration testing.
920    checkpoint53b_pre
921    
922    o created pkg/mom_common in preparation for variable viscosity code
923    o renamed and split ini_mnc_io
924    o pkg/land: only liquid water can diffuse or run-off
925    o AIM using land: soil wetness availability account for snow
926    o added printMapIncludesZeros to EEPARMS namelist
927    
928    checkpoint53a_post
929    o restore TAMC compatiility for exf_constants.h
930      (no usage of _d in .h)
931    o Additional storing in KPP in an attempt to fix
932      TAMC problem with adjoint of KPP code.
933      (no success...)
934      Identical code works fine with TAF.
935    o Fixed verification/natl_box_adjoint experiments.
936      Initial conditions for Experiments 4 and 5 are now
937      set to "SEAICE_initialHEFF=0", which is more reasonable,
938      and hence gives results closer to that of Experiment 2.
939      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
940    
941    checkpoint53
942    o stable checkpoint with up to date adjoint
943      TLM tests only run for 1st grdchk at the moment. Its unclear if
944      this is a code problem or a problem with resetting code for g_
945      variables that is being autogenerated wrong.
946      Otherwise:
947       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
948       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
949         are both still in chaos following their security messes.
950    
951    checkpoint52n_post
952    o various build (mostly genmake2) changes including:
953      - ability to build/run more easily within Cygwin and MacOS X
954      - more complicated Makefiles with a stronger dependence on Gnu Make
955    o pkg/seaice modifications
956      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
957        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
958        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
959      - changed proxy for geostrophic velocity and updated
960        verification/lab_sea/results/* accordingly
961      - removed ADI dynamic solver from pkg/seaice
962      - replaced all occurrences of 1/CSTICE or 1/CSUICE
963        they caused a segmentation fault under certain circumstances
964      - removed unused field WATR
965    o bug fix in exf-package:
966      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
967         now reflect that.
968    o small fixes in the cal-package:
969      - set reference date to first of January for the 'model'-calendar
970      - failing of cal_CheckDate in cal_FullDate now actually results in a
971        warning
972    o small modifications in exf-package to increase flexibility:
973      - change climtempfreeze from a constant to a runtime parameter that
974        is specified in data.exf_clim (default = -1.9)
975      - introduce runtime parameter windstressmax (default = 2.0) that is
976        specified in data.exf
977    o fix in pkg/thsice:
978      - update Evap (Tsf changes) to be consistent with Latent heat flux
979      - maintain snow precipitation unchanged (even if Tsf >=0).
980     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
981    
982    checkpoint52m_post
983    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
984      this does not change any of the results, because myIter=0 in swfrac always
985      lead to jwtype=2 (the default anyway), but the call makes little sense
986      as a default
987    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
988    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
989      atmospheric model (AIM) to use it ; add a "slab ocean" component.
990    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
991    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
992    o extending useSingleCpuIO option to work with new exch2 I/O format
993      - old-style, missing-tile I/O is still accessible by defining CPP
994        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
995    o monitor package can write to NetCDF files and/or STDOUT
996    o fix re-definition bug in MNC_GRID_INIT_ALL()
997    o doc/api_reference added
998      - a framework for building an API Reference Manual using all
999        the "protex" comments embedded in the code
1000      - see pkg/generic_advdiff, pkg/mnc for examples
1001    o MNC:
1002      - make myThid the last argument for all subroutines
1003      - new default for the grid files: NO halos
1004      - add useMNC and other run-time flags
1005      - separate per-file-group handling of the unlimited dimension
1006      - early initialization of MNC w/ flags read at the eeboot stage
1007        and lookup tables set in initialize_fixed
1008      - write all MNC output to a freshly-created directory
1009    o thermodynamics sea-ice (thsice) is now tested with testreport.
1010    o test exp. advect_cs: use the standard cs32 grid ; update output.
1011    o Added functionality to grdchk:
1012      pick global i,j,k position (or nearest wet) where to perform check.
1013    
1014    checkpoint52l_post
1015    o new land formulation:
1016      a) use ground enthalpy as prognostic variable to ensure exact
1017         energy conservation.
1018      b) account for water temperature and for latent heat of freezing
1019         in all processes (rain, run-off, ground storage)
1020      c) compute surface and ground temperature implicitly.
1021    o aim_v23 modification for new land model:
1022      a) Treat separately land / ocean / sea-ice surface fluxes
1023         to allow implicit computation of land & sea-ice surface temp.
1024      b) add snow precipitation.
1025    checkpoint52l_pre
1026    
1027    o fix problem (when 1 tile is empty) in min/max monitor.
1028    o fix bug in timeAve (u,vZetatave in common block)
1029    o no restoring terms under ice for pkg/seaice
1030    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1031    o bug fix for pkg/seaice pickups
1032    o change MNC call locations and add coordinate attributes
1033    o mask vorticity at the corner ; affects global_ocean.cs output
1034    o fix ini_curvilinear_grid ; test CS experiments with mpi
1035    o aim.5l_cs: modify sea-ice fraction input file ; update output
1036    o exf: Adding simple range check routine for exf fields after read
1037    
1038    checkpoint52k_post
1039    o removed top-level directory "diags"
1040      - we migrated these functions to pkg/timeave a long time ago
1041    o fixed bug introduced in pkg/monitor
1042    o accuracy ctrlprec = 32 insuffient for gradient checks using
1043      averaged fields (I/O via cost_averages)
1044      -> use ctrl.h in active_file*.F to control I/O precision.
1045    o paramter list of CALL ADTHE_MAIN_LOOP
1046    o added initial do_the_model_io to ecco
1047    o set all ...Freq to zero after cost_final
1048      taveFreq, dumpFreq, pChkptFreq
1049    o MAIN and ECCO differentiability restored
1050    
1051    checkpoint52j_post
1052    o fix nchklev in tamc.h for global_ocean...
1053    o Bringing flow and store directives up-to-date
1054    o Really weird thing!
1055      call do_the_model_io from the_main_loop with parameters
1056      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1057      TAF places a faulty re-call of initialise_varia
1058      after cost_final call which should not be there!
1059    checkpoint52j_pre
1060    
1061    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1062      error messages
1063    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1064    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1065      debug output
1066    o modfied mdsio_writefield.F to handle non-global files under exch2
1067    o update AIM Cubed-Sphere exp (aim.5l_cs):
1068      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1069    o update AIM Equatorial Channel exp:
1070      use standard aim_v23 pkg and change the SST fields to be more realistic.
1071    o globalFile now works with exch2
1072    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1073      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1074    o limit timeave output for hi-res integrations
1075    
1076    checkpoint52i_post
1077    o removed CPP_EEOPTIONS.h from verification/*/code
1078    o updated the tiling for global_ocean_pressure
1079    checkpoint52i_pre
1080    
1081    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1082      the old pkg/aim).
1083    
1084    checkpoint52h_pre
1085    o shortened offending lines in exch2_send_rx?.template
1086    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1087    o genmake2: add build & execute test for NetCDF code
1088    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1089      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1090    o added useSingleCPUIO flag to monitor.F and mon_out.F
1091    o added temporary hack for sea-ice dynamics on the cube:
1092      metric terms are ignored and it is assumed that
1093      there is no sea-ice on cube faces 1, 2, 4, and 5.
1094    
1095    checkpoint52f_post
1096    o added exch2 cube routines to pkg/exch2
1097    o modified hs94.cs-32x32x5 to use it
1098    o added new grid files to hs94.cs-32x32x5
1099    checkpoint52f_pre
1100    
1101    checkpoint52e_post
1102    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1103      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1104    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1105      to work with implicit vertical advection and AB ;
1106    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1107    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1108     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1109    checkpoint52e_pre
1110    
1111    o fix bug in impldiff when Nr=1 or Nr=2.
1112    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1113    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1114    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1115      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1116    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1117    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1118    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1119    
1120    checkpoint52d_post
1121    o re-tiled many expts to allow comparison in multi-processor mode
1122      - updated output accordingly
1123      - changed hs94.128x64x5 to use intial T from file rather than use the
1124        random number generator
1125    o add infrastructure in model routines for fizhi and gridalt packages
1126    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1127    o changes to permit hi-res, cubed-sphere, configuration
1128      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1129      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1130      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1131        of surface winds for the cube
1132      (A verification experiment, based on global_ocean.cs32x15, but with
1133       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1134       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1135       complete with example surface forcing files and matlab scripts to look
1136       at the output and compare it with that of global_ocean.cs32x15.)
1137    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1138       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1139       to conform to the common rule.
1140    o check-in the first version of the coupler + interfaces for multi-components
1141       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1142       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1143       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1144       - ocean and atmos. share the same horizontal grid (no interpolation).
1145       - exchanges between component and coupler is done in forward_step
1146    o new verification experiment, cpl_aim+ocn:
1147       coupled ocean - AIM atmosphere on cs32 grid.
1148    
1149    checkpoint52d_pre
1150    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1151    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1152    
1153    checkpoint52c_post
1154    o Fixing OPTIONS files for use of exf:
1155      - ALLOW_ECCO not needed
1156      - ECCO_CPPOPTIONS.h should not be included from
1157        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1158        as has been the case in the past
1159      - All cal/exf related options are currently set in
1160        single header file. Should remain so until we
1161        agree on a consistent new policy.
1162    o Removed all CPP options for cal package.
1163      cal has no more CPP options.
1164    o modified STOREs in GAD_ADVECTION
1165    o corrected key comp. for passkey
1166    
1167    checkpoint52b_post
1168    o new version: "thsice" of thermodynamic sea-ice pkg:
1169     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1170     - modify fluxes but do not change theta directly;
1171     - light cleaning of bulk_force pkg (still needed with thsice).
1172     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1173       + output_thsice.txt to test thsice & bulk_force pkgs.
1174    o put back grid & coriolis monitor output.
1175    checkpoint52b_pre
1176    
1177    o call "do_the_model_io" at the beginning (=> dump initial state)
1178    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1179    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1180      (need info on NUMBER_OF_PTRACERS)
1181    o missing PTRACERS headers in some routines
1182    o default tamc.h in pkg/autodiff supposed to crash
1183      to ensure proper customization
1184    
1185    checkpoint52a_post
1186    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1187      - moved surfaceTendencyTice from pkg/seaice to main code
1188      - subroutine FREEZE_SURFACE now limits only surface temperature
1189        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1190        => new output.txt for global_ocean.cs32x15 & global_with_exf
1191      - keep the old version of FREEZE for backward compatibility;
1192        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1193      - corresponding modifs for TAF directives
1194    o added surface flux output variables to TIMEAVE_STATVARS
1195    o time-averaged output for pkg/ptracers
1196    o fix problem with ECCO-related divided adjoint
1197      snapshot file was missing some ad-variables,
1198      but no warning issued by TAF
1199    
1200    checkpoint52a_pre
1201    o some bug fixes for #undef REAL4_IS_SLOW
1202    
1203    checkpoint52 = ecco_c52_e35
1204    o after testing adjoints of checkpoint51u_post
1205    
1206    checkpoint51u_post
1207    o this is the post-merge tag of the ecco-branch
1208      (needs another clean checkout and re-testing)
1209    o various natl_box_adjoint configs and results
1210      but no input fields
1211    o obcs adjoint not yet merged!
1212    o adding ECCO global 1x1 and 2x2 degree configs
1213    o updated/extended some store directives for seaice
1214    o pkg/ecco now containes ecco-specific part of cost function
1215    o top level routines the_main_loop, forward_step
1216      supersede those in model/src/
1217      previous input data.cost now in data.ecco
1218      (new namelist ecco_cost_nml)
1219    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1220    
1221    checkpoint51t_post
1222    o this is the pre-merge tag of the ecco-branch
1223    
1224    checkpoint51s_post
1225    o cleanup: removed various obsolete #define-s
1226    o pkg/grdchk
1227      - renamed 'ph-grd 3' to 'grad-res'
1228      - merged from ecco-branch
1229        (remaining bug fixes for obcs gradient checks)
1230      - additional high-precision output for testreport
1231        (grep for 'precision_grdchk_result')
1232    
1233    checkpoint51r_post
1234    o cleaned up or removed CPP_OPTIONS.h files
1235    o updated results for some of the tests to reflect the new
1236      optfiles (-ieee: -O0 instead of -O3)
1237    
1238    checkpoint51q_post
1239    o cd_code:
1240      - moved cd_scheme.F -> cd_code_scheme.F
1241      - separate read_checkpoint from cd_code_ini_vars.F
1242      - separated cd_code part from write_checkpoint
1243      - updated AD_SOURCE, generated .flow
1244      - added CD_CODE_VARS.h to the_main_loop
1245      - Moving cd_code specific store dir.s to pkg/cd_code
1246    o ctrl package totally restructured
1247      - pack/unpack now optional and decoupled from
1248        xx_/adxx_ I/O
1249      - ctrl_pack/unpack cleaned
1250        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1251      - confined inclusion of AD_CONFIG.h to where necessary.
1252    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1253    
1254    checkpoint51p_post
1255    o create initial cd_code package
1256      - WARNING: the initialization of fields within packages
1257        is broken because INI_FIELDS (where READ_CHECKPOINT is
1258        called) is called *before* PACKAGES_INIT_VARIABLES.
1259        This seems to be backwards since
1260        1) its important to initially zero the entire field including
1261           the "halo" region
1262        2) zeroing needs to be done *before* reading pickup info
1263           and the pickup call might or might not happen in any
1264           particular run
1265      - this needs an overhaul for R2
1266    o cleanup verification/*/code/GMREDI_OPTIONS.h
1267    o cleanup testreport
1268    
1269    checkpoint51o_post
1270    o bringing AD-related verif's up to date with genmake2
1271      - carbon/
1272      - global_ocean.90x40x15/
1273      - hs.94.1x64x5/
1274      - (front_relax/ )
1275    o (more) consistent directory structure for AD-related verif.'s
1276    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1277    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1278    o bug fix in find_alpha.F for MDJWF:
1279      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1280        change rho -> rho-rhoConst
1281      - replace call find_rho to find_rhonum
1282    o initialisation of rFlx extended to full array (required by TAF)
1283      and shifted to thermodynamics
1284    o removed PTRACERS.h in ptracers routine
1285    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1286    o Correcting initialisations for fVerU, fVerV.
1287    o helping TAF to recognize dependency on kUp for
1288      fVerU, fVerV
1289    o Replacing delZ by delR in pkg/ctrl/
1290    checkpoint51o_pre
1291    
1292    o undid all of cp51 pending some cleanups and discussion
1293    o added the [#include "AD_CONFIG.h"] statement to all files that need
1294       it for adjoint/tl #defines
1295     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1296     o removed tools/genmake since it no longer works
1297    
1298    checkpoint51n_post
1299    o modifications to make FREEZE flux visible to pkg/kpp
1300      - moved surfaceTendencyTice from pkg/seaice to main code
1301      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1302      - subroutine FREEZE now limits only surface temperature
1303        (this means new output.txt for global_ocean.90x40x15,
1304         global_ocean.cs32x15, and global_with_exf)
1305    o added surface flux output variables to TIMEAVE_STATVARS
1306    
1307    checkpoint51n_pre
1308    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1309    o added [#include "AD_CONFIG.h"] to all files that use the following
1310      defines:
1311      - ALLOW_ADJOINT_RUN
1312      - ALLOW_TANGENTLINEAR_RUN
1313      - ALLOW_ECCO_OPTIMIZATION
1314    
1315    checkpoint51m_post
1316    o incorporating changes to get TAMC/TAF working in genmake2
1317      - added new TAMC/TAF targets to the Makefile
1318      - various cleanups related to package handling
1319      - these changes should have no impact on the forward model
1320    
1321    checkpoint51l_post
1322    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1323     - faster algorithm for cal_addtime.F
1324     - higher precision arithmetic, where needed
1325     - pkg/exf *startdate variables changed from calendar date to
1326       model integration time
1327    
1328    checkpoint51l_pre
1329    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1330    o enable to apply restoring on S & T only in a latitude band.
1331    o update output (external_forcing_surf modif. change truncation errors)
1332       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1333    
1334    checkpoint51k_post
1335    o change default to: useNHMTerms=.FALSE.
1336     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1337       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1338     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1339        exp1, ideal_2D_oce
1340     - change data file of oceanic exp (leave the results unchanged for now)
1341       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1342    o set gravitySign automatically according to the vertical coordinate used
1343      (and change sign: back to "logical" value: +1 when R increases downward)
1344    o added an include barrier to the default CPP_OPTIONS.h and
1345      removed the #include "PACKAGES_CONFIG.h" from it
1346    o fix a bug in mom_fluxform (from chk51j_post)
1347    
1348    checkpoint51j_post
1349    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1350    o adjusted some flow directives (dynamics, thermodynamics)
1351    o added cubed-sphere case to test cost function
1352    o heckpoint_lev?_directives.h now include
1353      pkg-specific directives, whenever those are enabled.
1354    o Moving pkg-specific flow directives to corresponding pkg
1355      Moving pkg-specific differentiation list to corresponding pkg
1356      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1357      ---> conventions are
1358           - pkg_ad.flow
1359           - pkg_ad_diff.list
1360           - pkg_ad_check_lev?_dir.h
1361    
1362    checkpoint51i_post
1363    o merge of the branch-genmake2
1364      - knowingly breaks the older genmake
1365      - automatic generation of all ALLOW_${PKG_NAME} defines
1366      - new testreport supersedes older testscript
1367    o large number of package inclusion and header cleanups
1368    checkpoint51i_pre
1369    
1370    o new output for adjoin of global ocean vector invariant
1371    o fix for checkpoint of thermodynamic seaice and bulk_force
1372    o Steph gchem various cleanups
1373    
1374    checkpoint 51h_pre
1375    o fixed some single quotes
1376    o modify gchem pkg to be more versatile
1377    o modifications to clean up dic pkg
1378    o add pkg/cfc
1379    
1380    checkpoint51g_post
1381    o provide links for ARPACK and ADM*TLM
1382    o start removing verification/vero/
1383    o update AD-related stuff
1384      (in particular some IF-statements in model/src/ routines)
1385    o adding to verification/global_ocean.90x40x15/ adjoint of
1386      vector invariant setup
1387    
1388    checkpoint51f_post
1389    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1390    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1391      of tracer Green's fucntions for ocean inversion project.
1392    
1393    checkpoint51f_pre
1394    o Added on-the-fly spatial interpolation capability
1395        "USE_EXF_INTERPOLATION" to pkg/exf.
1396      - This is a temporary Cartesian-grid hack until
1397        the super-duper ESMF coupler becomes available.
1398      - See verification/global_with_exf/README for usage example.
1399      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1400        flags and modified pkg/seaice accordingly.
1401    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1402        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1403        non-local transport term.
1404    
1405    checkpoint51e_post
1406    o pkg/mom_vecinv:
1407      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1408      - add time-ave diagnostic of vorticity advection.
1409    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1410    o atmospheric geopotential: - include water vapor effect;
1411                                - use p^kappa in p* scaling.
1412    o land pkg: read initial state from files.
1413    o AIM : add stratospheric drag in the upper level
1414    
1415    checkpoint51d_post
1416    o change function ILNBLNK (=> last non-blank char.) to return zero
1417      (instead of the string length) when the string. char is empty
1418    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1419    o modif's to restore TAMC compatibility
1420      - avoid "_d" constructs in PARAMETER declarations
1421      - avoid interrupting lines by comment lines
1422    o Use cluster local disks for purely local I/O
1423      vs. globally visible disks needed for ctrl stuff
1424      (merged from ecco-branch)
1425      - new active_file_loc... and mdsio_..._loc routines
1426      - affected packages: autodiff, ctrl, grdchk, mdsio
1427    
1428    checkpoint51c_post
1429    o introducing integer flag debugLevel
1430      - debLevZero: suppress all output
1431      - debLevA: standard
1432      - debLevB: equivalent to current debugMode=.TRUE.
1433    o introducing pathname variable mdsioLocalDir for mdsio
1434      that can be specified at runtime
1435      (relevant for cluster I/O to local disk)
1436    `
1437    >>>checkpoint51b_post
1438    adjoint of ptracers
1439    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1440    o extended state in checkpoint_lev?, etc.
1441    o alternative ctrl/cost with tr1 or ptracer
1442    o new comlev1_bibj_ptracers
1443    o new ptracers.flow
1444    o made ptracers_forcing same as external_forcing_s
1445    o added verification for adjoint with ptracers
1446      - adm. grdchk fail so far
1447      - tlm. grdchk OK
1448      - checked tapelev/comlev recomputations: OK
1449    <<<checkpoint51b_pre
1450    
1451    checkpoint51a_post
1452    o added code for biogeochemistry package
1453      - new pkgs: dic, gchem
1454      - new subroutine in ptracers
1455    o modify code for biogeo packages
1456      - in model/src and pkg/ptracers
1457    
1458    checkpoint51
1459    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1460      - autodiff, ctrl, exf, grdchk, seaice
1461      kept separate packages
1462      - cost, ecco, obcs
1463    o updating verification/internal_wave, verification/lab_sea
1464      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1465    
1466    checkpoint50i_post
1467    o Preparing next differentiable checkpoint and sync
1468      of MAIN vs. ecco-branch
1469      - 1st step: this one is differentiable
1470      - 2nd step: next(! not this) checkpoint will have updated packages
1471                  from ecco-branch)
1472    
1473    checkpoint50h_post
1474    o new package "land": provide surface BC for AIM.
1475    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1476    o AIM: use true log-P extrapolation for near surface temp (= as in
1477        F.Molteni paper) ; update aim.5l_cs output.
1478    o New variable in PARM03 for more flexible pickups
1479    o somewhat cleaned package initialisation sequence for
1480      ctrl/ cost/ ecco/ in packages_... routines
1481    
1482    checkpoint50g_post
1483    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1484      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1485      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1486        made the default because of faster convergence than ADI
1487    
1488    checkpoint50f_post
1489    o exf totally restructured
1490      - replaced all exf_set_ routines by one generic exf_set_gen.F
1491        and made sure it's still differentiable
1492      - split exf_getffields.F into new exf_bulkformulae.F
1493      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1494      - updated adjoint/makefile and relevant verif. accordingly
1495    
1496    checkpoint50f_pre
1497     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1498          + change Evap over land. (update aim.5l_cs output)
1499     o added missing .cvsignores and made uniform across expts
1500     o changed configuration of tidal_basin_2d expt
1501     o added pkg/debug functions for tracing code in fatal crashes
1502     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1503     o new fn in pkg/monitor to stop model if solution grows too big
1504     o removed lots of single quotes from comments
1505    
1506    checkpoint50e_post
1507    o make KPP work with PTRACERS
1508     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1509       nearly a copy of kpp_transport_s
1510     - there is no analogue to SurfaceTendencyS, so I have to use
1511       gPtr(of the surface layer) instead
1512    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1513    checkpoint50e_pre
1514    
1515    checkpoint50d_post
1516    o change kpp output from multiple-record state files to single-record state
1517      files analogous to write_state.F
1518    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1519      analogous to the cg2d-related output.
1520    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1521      so that writing to internal file fn (with length 512) fails.
1522    checkpoint50d_pre
1523    
1524    checkpoint50c_post
1525    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1526    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1527    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1528    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1529    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1530    
1531    checkpoint50c_pre
1532    Merging from release1_p13:
1533    o bug fix for pkg/seaice dynamic solver
1534    o Added SEAICE_initialHEFF to pkg/seaice
1535    
1536    checkpoint50b_post
1537    o store u*,v* in gU,V instead of in guNm1,gvNm1
1538    o in order to put the momForcing out of the Adams-Bashforth:
1539      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1540      to timestep.F
1541    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1542    o re-generate output for highly sensitive test-exp:
1543       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1544    
1545    checkpoint50b_pre
1546    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1547    o corrected CPP option mismatch in exf_Bulk... functions for case
1548      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1549    
1550    checkpoint50a_post
1551    o Bug fix for merging between c50 and KPP.
1552      ikey was passed from thermodynamics to kpp_calc via
1553      common block rather than being recomputed in kpp_calc,
1554      in contradiction with new key itdkey.
1555      New key ikppkey created, and tamc.h headers updated.
1556    
1557    checkpoint50
1558    - 2nd step of merge with ecco-branch:
1559      merge changes in ecco-branch back into main trunk
1560    - bug fix in find_alpha
1561    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1562    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1563    - merged some sliced AD support routines
1564    
1565    checkpoint49
1566    merged from ecco-branch:
1567    o exf:
1568      - Enable initialisation of forcing fields to constant
1569        (runtime) values.
1570      - in exf_getffields.F
1571        Reduce i-/j-loop to interior domain, discarding overlaps.
1572        That also fixes wrong TAF-key computations for key_1, key_2
1573        with bulf formulae.
1574      - exf_init.F modify #ifdef for exf_init_evap
1575      - exf_getffieldrec.F, ctrl_getrec.F
1576        The following INT-usages are not safe:
1577          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1578          fldcount = int(fldsecs/fldperiod) + 1
1579        and were modified.
1580    o autodiff: checkpoint_lev...
1581      - updated storing for bulk formulae (some arrays were missing)
1582      - added state for seaice package
1583      - synchronized with main branch
1584    o DIVA:
1585      Modif.s in
1586      - the_main_loop.F
1587      - the_model_main.F
1588      and added cost_final_restore.F cost_final_store.F
1589      o With these changes, it is possible to fully separate
1590        the first forward run to compute the cost function (mdthe_main_loop)
1591        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1592        into separate model executions.
1593        This enables better tuning of DIVA to given queue sizes.
1594      o Loss of cost function value in consecutive DIVA runs is
1595        fixed by storing to 'costfinal' file.
1596      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1597        beginning/end of adjoint integration is accounted for.
1598      The current changes apply to TAF-1.4.26.
1599      TAF has one remaining bug, requiring one manual change
1600      (see MITgcm manual).
1601    o cal: synchronized between MAIN and ecco-branch
1602    
1603    checkpoint48i_post
1604    o Changes to restore differentiability of code w.r.t. previous tag
1605      (mostly adding new routines to make list and replacing
1606      pressure by totPhiHyd).
1607    o Updated and merged grdchk package
1608      - has both ADM and TLM checks
1609      - works for single- and multi-proc.
1610      - output cleaned
1611      - worked successfully for parallel DIVA
1612    o genmake:
1613      - Adding -platform=SP4
1614      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1615    o Modif. for DIVA:
1616      ctrl_unpack should not be called in intermediate DIVA interval.
1617      (similar thing would apply for active files such as
1618      tbar, sbar, psbar, which should not be reinitialised;
1619      only relevant for ecco-branch)
1620    
1621    checkpoint48h_post
1622    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1623    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1624    o Added SEAICE_initialHEFF to pkg/seaice
1625    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1626    
1627    checkpoint48g_post
1628    --- EOS:
1629    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1630      store total Potential in totPhyHyd for diagnostics & EOS.
1631    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1632    --- Pressure/geopotential gradient:
1633    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1634    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1635      ( changes results of global_ocean_pressure )
1636    o NLFS + z-coord.: add eta*Rho' contribution.
1637    o accurate phiHyd when using interface-W at the middle between 2 centers
1638     ( changes results of ideal_2D_oce )
1639    o includes r* 2nd term in potential gradient.
1640    
1641    checkpoint48f_post
1642    Merging from release1_p12:
1643    o Modifications for using pkg/exf with pkg/seaice
1644      - improved description of the various forcing configurations
1645      - added basic radiation bulk formulae to pkg/exf
1646      - units/sign fix for evap computation in exf_getffields.F
1647      - updated verification/global_with_exf/results/output.txt
1648    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1649      (SBO) core products, including oceanic mass, center-of-mass,
1650      angular, and bottom pressure (see pkg/sbo/README.sbo).
1651    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1652      to avoid negative values in shallow regions.
1653      - updated verification/natl_box/results/output.txt
1654      - updated verification/lab_sea/results/output.txt
1655    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1656    o Added useSingleCpuIO option (see PARAMS.h).
1657    o Updated useSingleCpuIO option in mdsio_writefield.F to
1658      work with multi-field files, e.g., for single-file pickup.
1659    o pkg/seaice:
1660      - bug fix in growth.F: QNET for no shortwave case
1661      - added HeffFile for specifying initial sea-ice thickness
1662      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1663    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1664      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1665    o pkg/seaice:
1666      - adjoint-friendly modifications
1667      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1668    
1669    checkpoint48e_post
1670    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1671    o dynamics: change definition of computational domain & adapt mom_fluxform
1672      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1673    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1674        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1675        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1676        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1677        inverted_barometer solid-body.cs-32x32x1
1678      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1679    
1680    checkpoint48d_post
1681    o in preparation for r*:
1682     a) use pre-computed gradient of hydrostatic potential:
1683        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1684     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1685        => affects results of glob_oce_pressure (different truncation error)  
1686      update output.txt of ideal_2D_oce & global_ocean_pressure
1687    
1688    checkpoint48d_pre
1689    o in preparation for r*:
1690      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1691      pass the 2 comp. of the grad. as arguments to momentum S/R.
1692      but for the moment, only used if it does not change the results.
1693    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1694    
1695    checkpoint48c_post
1696    Modifications in treatment of initial flux forcing controls
1697    to avoid extra storing of flux fields.
1698    
1699    checkpoint48c_pre
1700    o Added tidal_basin_2d experiment (currently 1D!)
1701    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1702    
1703    checkpoint48b_post
1704    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1705     (modification to pressure gradient not yet implemented)
1706    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1707      (for U & V) that are used for vertical advection of momentum.
1708    
1709    checkpoint48a_post
1710    o In preparation for r*, use temp. array to compute vertical transport
1711       in flux-form momentum pkg. => change results of few test-exp.
1712      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1713                        lab_sea, natl_box & plume_on_slope
1714    
1715    checkpoint48
1716    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1717    
1718    checkpoint47j_post
1719    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1720    o moved adexch from forward_step to addummy_in_stepping
1721    o added exch in ctrl_map_...
1722    o aveFreq.=0. at end of cost_final to avoid overwrite in
1723      reverse checkpointing loop
1724    o Yet more changes in gmredi:
1725      * adgmredi_calc_tensor
1726        avoiding all recomputation of gmredi_slope_limit
1727      * adgmredi_x/y/rtransport
1728        added flag for excessive storing to avoid recomp. of
1729        u/v/rtans, dTdx/y/z
1730        -> this is not really necessary and very memory-consuming
1731      * adgmredi_slope_psi:
1732        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1733      * gmredi_slope_limit
1734        re-activated full calculation of taperfct for case 'ac02'
1735    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1736    
1737    checkpoint47i_post
1738    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1739    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1740      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1741    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1742    o gmredi: fix few bugs.
1743    
1744    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1745    This will be a good checkpoint to plug into the ecco-branch.
1746    o few modif.'s to get latest version adjointed
1747      (mainly kick out code in ini_linear_phisurf)
1748    o modif's to run adjoint with exactConserv
1749    o case GM_BOLUS_ADVEC should be cleaned
1750      S/R gmredi_slope_psi should be cleaned
1751    o verification/carbon now has exactConserv=.TRUE.
1752    
1753    checkpoint47g_post
1754    o time-average AIM output: becomes independent from statvars time-average
1755      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1756    o After TAF bug fix:
1757      Tested adjoint of gmredi package.
1758      Tests were done with checkpoint47 rather than with latest
1759      checkpoint47f_post since the latter is broken for the adjoint
1760      verification/carbon/ contains both ADM and TLM gradient checks.
1761    Here they are, before they get changed/lost/stolen.
1762    Mostly modif.'s to fix numerical sensitivities.
1763    Gradient checks OK for
1764    - GM_taper_scheme:
1765      * clipping
1766      * ac02
1767      * linear
1768      * glw91
1769      * dm95
1770      * ldd97
1771    - GMREDI_OPTIONS:
1772      * GM_VISBECK_VARIABLE_K
1773      * GM_NON_UNITY_DIAGONAL
1774      * GM_EXTRA_DIAGONAL
1775      * GM_BOLUS_ADVEC
1776    in conjunction with data.gmredi parameters to be checked in
1777    in a few minutes under verification/carbon/code/
1778    
1779    checkpoint47f_post
1780    Merging from release1_p10:
1781    o modifications for using pkg/exf with pkg/seaice
1782      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1783        and SEAICE_EXTERNAL_FLUXES
1784      - pkg/exf CPP options EXF_READ_EVAP and
1785        EXF_NO_BULK_COMPUTATIONS
1786      - usage examples are Experiments 8 and 9 in
1787        verification/lab_sea/README
1788      - verification/lab_sea default experiment now uses
1789        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1790    
1791    checkpoint47e_post
1792    o created a tag prior to creating a branch
1793    
1794    checkpoint47d_post
1795    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1796      at the bottom boundary had an erroneous half slip boundary condition
1797    o added bottom drag and no slip boundary condition capabilities to
1798      oceanic pressure coordinates code
1799    o added new verification experiment global_ocean_pressure, this experiment is
1800      also described in the tutorial section of the manual
1801    checkpoint47d_pre
1802    
1803    checkpoint47c_post
1804    o Added a verification experiment for a global cubed-sphere ocean run
1805      -  verification/global_ocean.cubed32x32x30
1806      -  uses pkg/therm_seaice and pkg/bulk_forcing
1807    
1808    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1809    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1810      when using P-coordinate; only implemented for atmospheric config.
1811    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1812      NOTES: requires option NONLIN_FRSURF to be "#define".
1813    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1814    
1815    checkpoint47b_post
1816    Merging from release1_p9:
1817    o pkg/seaice
1818      - removed GOTO's and added taf directives
1819      - double precision constants to reduce the g77 (Linux)
1820        to F77 (SGI) differences reported in release1_p8
1821    o tools/genmake
1822      - added SGI options
1823    o verification/testscript
1824      - updated to that of checkpoint47a_post
1825    o verification/global_ocean.90x40x15/input/eedata
1826      - modified for SGI f77 compatibility
1827    o verification/lab_sea
1828      - added description of sea-ice model
1829      - added missing matlab routines
1830      - added test of thermodynamics parallelization
1831    
1832    checkpoint47a_post
1833    o new pkg: aim_v23
1834     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1835       for now, keep the same surface forcing as before.
1836     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1837     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1838     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1839    o add diagnostic of surface correction term in monitor output
1840    
1841    o bulk_force and therm_seaice
1842    - Two packages:  bulk_force (Bulk forcing)
1843      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1844    - Earlier integration from Stephaine Dutkiewicz
1845      and Patrick Heimbach.
1846    - Two ifdef statements for compile time,
1847       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1848    
1849    checkpoint47
1850    differentiable version of checkpoint46n_post
1851    o bug fix in quasihydrostaticterms
1852    o * "clean" adjoint code (in terms of extensive recomputations)
1853        can now be obtained for all GMREDI options (i.e. for
1854        - GM_VISBECK_VARIABLE_K
1855        - GM_NON_UNITY_DIAGONAL
1856        - GM_EXTRA_DIAGONAL
1857        - GM_BOLUS_ADVEC )
1858      * However, wrong gradient check problem remains unsolved.
1859      * New CPP options have been introduced for different
1860        tapering schemes
1861    o external_fields_load now part of differentiation list
1862    o pressure needs multiple storing;
1863      would be nice to have store_pressure at beginning or
1864      end of forward_step, e.g. by having phiHyd global (5-dim.)
1865      (NB: pressure is needed for certain cases in find_rho,
1866      which is also invoked through convective_adjustment).
1867    o recomputations in find_rho for cases
1868     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1869    o #define ATMOSPHERIC_LOADING should be differentiable
1870    o ini_forcing shifted to begining of initialise_varia
1871    o Incorporating QNVS line search routines into MITgcm
1872      (this is separate code, and therefore not under pkg)
1873      lsopt/, optim/
1874    o Updated verification/carbon/
1875      - #define GM_VISBECK_VARIABLE_K
1876      - GM_taper_scheme    = 'ldd97'    
1877    
1878    checkpoint46n_post
1879    Merging from release1_p8:
1880    o verification/natl_box:
1881      updating new external_fields_load routine
1882    o New package: pkg/seaice
1883      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1884      The sea-ice code is based on Hibler (1979-1980).
1885      Two sea-ice dynamic solvers, ADI and LSR, are included.
1886      In addition to computing prognostic sea-ice variables and diagnosing
1887      the forcing/external data fields that drive the ocean model,
1888      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1889      The implied surface heat flux is then stored in variable
1890      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1891      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1892      non-local transport term.  Because this call precedes model
1893      thermodynamics, temperature under sea-ice may not be "exactly" at
1894      the freezing point by the time theta is dumped or time-averaged.
1895      N.B.: fairly large differences in accuracy occur across
1896            different platforms/compilers; comparison between
1897            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1898            generated output gives:
1899       T           S           U           V
1900      C D M    c        m  s        m  s        m  s        m  s
1901      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1902      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1903      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1904    
1905      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1906    o GAD:
1907      - generated new common blocks to account for call of
1908        same gad routines with differing traceridentities
1909        (needed to modify tracerIdentity indices in GAD.h)
1910      - generated separate common blocks for case useCubedSphereExchange
1911        (Department of Futurology)
1912      - parameter lists to gmredi_?transport: added tracerIdentity
1913      - added new key indices to tamc.h
1914    o external_fields_load:
1915      - added this routine to TAF list
1916      - needed to make some common blocks global and additional storing
1917        along the same lines as exf package (checkpoint_lev?_directives.h)
1918    o exf:
1919      updated external forcing package
1920      - bug fixes carried over from ecco-branch
1921        (missing OBCS_OPTIONS.h in two routines)
1922      - enable easy to use "no forcing".
1923      - added exf I/O for atmospheric loading
1924      - added exf I/O for runoff data
1925      - transfered scaling between exf <-> MITgcm to exf namelist
1926    o Adding new verification experiment global_with_exf.
1927      This verification experiment is almost identical to the
1928      global_ocean.90x40x15 experiment, except that it uses
1929      the exf (and cal) package instead of the
1930      external_fields_load routine (cf README file).
1931    
1932    checkpoint46m_post
1933    o modified testscript to return -- when there are no lines of "%MON" output
1934    o added new flag "quasiHydrostatic" for QH mode
1935      and new routine quasihydrostaticterms()
1936    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1937      New routine: mom_u_coriolis_nh()
1938    o fixed sign of non-hydrostatic metric terms in u and v equations.
1939      Depend on correct sign of gravitySign.
1940    o added work.pc* to .cvsignore in aim directories using ifc
1941    o introduced flag for controllin non-hydrostatic metric terms
1942    o removed gravitySign from PARM04
1943    o switched to g77/ifc from pgf77 in aim experiments
1944    
1945    checkpoint46l_post
1946    o made convective adjustment work with pressure coordinates:
1947     - changed the direction of k-loop in convective_adjustment.F for the
1948       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1949     - adjusted the reference pressure k-index in convective_adjustment.F
1950     - adjusted the convection condition in convect.F (in analogy to
1951       calc_ivdc.F)
1952     - convective_adjustment no longer computes anything on the halos
1953     - removed the warnings about negative salinity from find_rho.F and
1954       find_alpha.F; instead the new routine look_for_neg_salinity, called
1955       at the beginning of find_rho, find_alpha, and find_beta, does a
1956       check of the entire slice, if CPP-option
1957       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1958    checkpoint46l_pre
1959    
1960    checkpoint46k_post
1961    o fixed the verification/global_ocean.90x40x15 experiment:
1962     - new bathymetry (the world according to A., JMC, and M.)
1963     - new initial fields and forcing fields (*.bin files)
1964     - new POLY3.COEFFS (for the next release one should switch to a full
1965       equation of state: JMD95P or MDJWF)
1966     - fixed several errors and redundancies in the data file
1967     - experiment uses looped cells
1968     - added matlab directory with diagnostic scripts for plotting of output
1969    
1970    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1971     - read AIM physics parameters from a file (data.aimphys)
1972     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1973    
1974    checkpoint46j_post
1975    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1976    o move wVel computation at the end of the time step, in S/R integr_continuity
1977    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1978    o update timeave pkg for wVel diagnostic.
1979    checkpoint46j_pre
1980    
1981    checkpoint46i_post
1982    o Clean up AIM package (and keep the results unchanged):
1983      include CPP_OPTION and use IMPLICT NONE in all routines ;
1984      declare all the variables _RL ; use _d 0 for all numerical constants.
1985      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1986    
1987    checkpoint46h_post
1988    o cleaned up the use of rhoNil and rhoConst.
1989      - rhoNil should only appear in the LINEAR equation of state, everywhere
1990        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1991        and the dynamical equations are all divided by rhoConst
1992    o introduced new parameter rhoConstFresh, a reference density of fresh
1993      water, to remove the fresh water flux's dependence on rhoNil. The default
1994      value is 999.8 kg/m^3
1995    o cleanup up external_forcing.F and external_forcing_surf.F
1996      - can now be used by both OCEANIC and OCEANICP
1997    checkpoint46h_pre
1998    
1999     Added code to convert surface volume flux (fresh water) into
2000     a mass flux when using P coordinates in the ocean (OCEANICP).
2001     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2002    
2003    checkpoint46g_post
2004    o Include a new diagnostic variable phiHydLow for the ocean model
2005      - in z-coordinates, it is the bottom pressure anomaly
2006      - in p-coordinates, it is the sea surface elevation
2007      - in both cases, these variable have global drift, reflecting the mass
2008        drift in z-coordinates and the volume drift in p-coordinates
2009      - included time averaging for phiHydLow, be aware of the drift!
2010    o depth-dependent computation of Bo_surf for pressure coordinates
2011      in the ocean (buoyancyRelation='OCEANICP')
2012      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2013        Theta, Salinity, and Pressure in the parameter list. This routine is
2014        presently contained in find_rho.F. This routine does not give the
2015        correct density for 'POLY3', which would be a z-dependent reference
2016        density.
2017    o cleaned up find_rho
2018      - removed obsolete 'eqn' from the parameter list.
2019    o added two new verification experiments: gop and goz
2020      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2021    checkpoint46g_pre
2022    
2023    checkpoint46f_post
2024    o Enable tangent linear (forward mode) gradient checks:
2025      - extended active file handling to g_... files
2026      - added TANGENT_SIMULATION to theSimulationMode
2027      - extended grdchk package accordingly
2028    o added tangent linear setup in verification/carbon/code_ftl
2029    o added adjoint setup in verification/front_relax/code_ad
2030    
2031    checkpoint46e_post
2032    o Added new equation of state -> MDJWF
2033      - EOS of McDougall et al., 2002, JAOT, submitted
2034      - caveat: the equation of state is only valid for a smaller (more
2035        realistic?) range of values than JMD95P/Z and UNESCO
2036      - added masks to the calculation of pressure in store_pressure
2037      - added more check values for density in check_eos (ini_eos.F), some of
2038        the old check values are out of the range of the MDJWF-eos, so don't
2039        expect perfect matches for those
2040    checkpoint46e_pre
2041    
2042    checkpoint46d_post
2043    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2044      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2045      case of pressure coordinates. eosType='JMD95Z' in
2046      combination with buoyancyRelation='OCEANICP' now causes an error.
2047    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2048      in find_alpha/beta.
2049    checkpoint46d_pre
2050    
2051    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2052      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2053    
2054    checkpoint46c_post
2055    o Changes necessary for ocean in p-coordinates
2056     -  Added new buoyancy relation = 'OCEANICP'
2057     -  Added new parameters = gravitySign (this used to be contained inside
2058        the factor dRdZ which I added when we first switched to R coordinates).
2059     X GM/Redi is not compatible (yet)
2060     X bottom drag and no-slip need to be debugged.
2061    checkpoint46c_pre
2062    
2063    checkpoint46b_post
2064    o Added new equation of state -> JMD95Z and JMD95P
2065      - EOS of Jackett and McDougall, 1995, JAOT
2066      - moved all EOS parameters into EOS.h
2067      - new routines ini_eos.F, store_pressure.F
2068    o Added UNESCO EOS, but not recommended because it requires
2069      in-situ temperature (see JMD95)
2070    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2071      unesco.f to be used with POLY3
2072    checkpoint46b_pre
2073    
2074    checkpoint46a_post
2075    o Added (atmospheric) pressure loading
2076      - new field in FFIELDS.h, etc...
2077      - new cpp flag ATMOSPHERIC_LOADING
2078    o Changed hFacC to _hFacC in calc_phi_hyd.F
2079    o Added SHORTWAVE_HEATING to some files for consistency
2080    checkpoint46a_pre
2081    
2082    checkpoint46
2083    further merges from release1_p5
2084    o new ctrl package
2085      - adopted from ECCO environment to enable optimization
2086      - added Eliassen Palm fluxes to controls
2087    o added Eliassen Palm flux controls to gradient check package
2088    o cost package
2089      - Compatible with new ctrl package
2090      - added Eliassen Palm cost hooks
2091      - modif's of existing cost functions
2092    o Adjoint-related bug fixes in kpp:
2093      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2094      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2095    o autodiff package
2096      - flow directives:
2097        + new for S/R do_the_model_io
2098        + enhanced for S/R checkpoint
2099        + new gmredi.flow
2100      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2101        disable adcommon.h/g_common.h by default.
2102      - fixed problem for adjoint of global_max
2103    o modified verification/carbon/
2104    o New setup for adjoint of global_ocean
2105    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2106    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2107    o incorporated hooks for sponge layer code (external_forcing.F)
2108    
2109    checkpoint45d_post
2110    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2111    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2112      (affects plume_on_slope "cg2d" output)
2113    o add new parameter deltaTfreesurf for free-surface time stepping
2114    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2115    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2116    o change phiMin in exp1 (to agree with documentation)
2117    o add new flags:
2118     - T,S forcing inside/outside Adams-Bashforth
2119     - turn off temp,salt advection and/or forcing
2120     - for each tracer, define internal flag for multiDimAdvection & A-B
2121    o monitor: change definition of KE to check conservation of Energy
2122    
2123    checkpoint45c_post
2124    o Removed f90 comments ("!")
2125    o Modified initialisations to enable exf package for MITgcm
2126      (without invoking ECCO_PACKAGE).
2127    o modifications to gradient check package (Martin Losch)
2128      - enable centered differences
2129      - modified format of standard output
2130    
2131    checkpoint45b_post
2132    o cleaned exchange calls in cg2d
2133    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2134    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2135      to configure barotropic setup (Martin Losch)
2136    o moved some initialisations within bi,bj loop in dynamics
2137      (TAF flow dependency)
2138    o in initialise_varia, moved call packages_init_variables
2139      before convective_adjustment_init
2140      (corresponding adjustment of TAF tape initialisation).
2141    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2142    
2143    checkpoint45a_post
2144    o compute Rho over the whole domain (extend iMin,jMin indices)
2145    o specific exchange for X-slice domain (case Ny=1)
2146    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2147    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2148    
2149    checkpoint44h_post = checkpoint45
2150    o Fix to restore differentiability:
2151      place at which packages_init_variables is called in
2152      initialise_varia is crucial for reverse control flow.
2153    o modifications in GMRedi to enable stable adjoint
2154      (corresponding modif's in thermodynamics, dynamics)
2155    o added missing hook for sponge layer code in external_forcing
2156    o modified test cost functions
2157    o storing in gad_advection (plus removal of write(0,*)!
2158    o missing headers TR1.h added in convective_adjustment routines
2159    o errorMessageUnit set non-equal zero in eeboot
2160      (conflict on some platforms, e.g. IBM SP3)
2161    o modified carbon verif.
2162    
2163    checkpoint44h_pre
2164    o vertical grid option: allow to put the Interface at the middle between
2165      2 cell-centers ; replace delZ in pkg/kpp by drF.
2166    o GM Advective form: Tracers are advected using the residual transport (=
2167      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2168    
2169    checkpoint44g_post
2170    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2171      results) ; ifdef missing in thermodynamics.F
2172    
2173    checkpoint44f_pre,checkpoint44f_post
2174    o added PTRACERS package
2175      This allows an arbitrary number of passive tracers to be integrated
2176      forward simultaneously with the dynamicaly model.
2177      + Implemented so far:
2178        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2179        - I/O and checkpointing
2180        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2181      + Not implemented so far:
2182        - KPP
2183        - OBCS
2184      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2185        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2186        line in data.pkg.
2187      + This package is disabled by default since it increases storage.
2188    
2189    
2190    o testscript: added -cleanup option
2191    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2192                 b) enable to filter 2D fields.
2193    
2194    checkpoint44e_pre,post
2195    o re-wrote convective adjustment to use pre-calculated weights
2196      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2197      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2198      Original calls to convect() still in place.
2199    
2200    chkpt44d_pre,post
2201    o added missing EXCLUDE_MONITOR flags
2202    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2203      (incompatible typ in MIN/MAX expressions caused problems
2204      on IBM SP3)
2205    o in genmake added variable MAKEDEPEND
2206      plus resetting for case SunOS
2207    o added timer_stats.c routine for IBM SP3
2208    o removed variables in dynamics
2209    !!! I forgot to create tag chkpt44d_pre !!!
2210    !!! But chkpt44d_pre = chkpt44c_post    !!!
2211    
2212    o real fresh water flux implemented with non-linear free-surface.
2213    
2214    chkpt44c_pre,post
2215    o few fix (mask in shap_s2, EmPmR in external_field_load,
2216      USE_NATURAL_BCS in solve_for_P);
2217    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2218    
2219    checkpoint44b_pre/_post
2220    o merge of relevant stuff from the ecco-branch:
2221      - genmake: removed $S64 overwrite for case SunOS
2222      - pkg/exf: update and corrections for field swapping and obcs
2223      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2224                  harmonized between ECCO and MITgcm
2225      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2226                      updated checkpointing_lev... lists for obcs
2227      - model/src: minor changes in forward_step, plot_field
2228                   added directive for divided adjoint in the_main_loop
2229      - pkg/mdsio: added mdsio_gl_slice
2230    
2231    o check parameters & config (chkpt44a_pre,post)
2232    o OBC and NonLin_FrSurf.
2233    
2234    checkpoint44
2235    o fix bug in mom_vi_del2uv
2236    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2237    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2238    o update AIM experiments (NCEP input files)
2239    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2240    o added some stuff for AD
2241    
2242    checkpoint43
2243    o added two new advection tests
2244    o added global 4x4 degree ocean test
2245    o added test of H&S94 with free surface on cube
2246    o some final mods for gradient check, adjoint,...
2247    
2248    checkpoint42
2249      Fixed AD-related problems:
2250    o Store directives up-to-date with re-arranged Adams-Bashforth
2251      (mainly thermodynamics.F)
2252    o New store directives for multi-dim. advection schemes
2253      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2254      * new common block and key passkey
2255      (mainly gad_advection.F)
2256    o Modified store directives for split of dynamics/thermodynamics
2257      for the case ALLOW_KPP
2258    o Cleaned argument list for timestep_tracer.F
2259    
2260    checkpoint41
2261    o re-formatted/added comments in prologues of key subroutines
2262      to work with protex
2263    
2264    checkpoint40
2265    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2266    o added FLT (floats) package from Arne along with demo. experiment
2267    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2268      implementation of forward-in-time forcing terms
2269    o more mods for non-linear free-surface including new variable
2270    o modified multi-dim method to work on cube
2271    o bug fix in KPP (from DM)
2272    
2273    checkpoint40pre9
2274    o added DST advection schemes
2275    o fix MPI bug on SGI's
2276    o modifications for non-linear free-surface
2277    o fixed conditionals for fixed flow/passive tracer only mode
2278    o added tension/strain form of stress tensor
2279    o changes to commenting of arguments for TAF/TAMC
2280    o added/updated many matlab scripts
2281    o added multi-dimensional advection method for tracers
2282      
2283    checkpoint40pre8
2284    o new package rw/
2285      Added method for dumping intermediate local arrays:
2286      mdsio_writetile - same as mdsio_writefield except works from inside
2287                        bi,bj loop
2288      mdsio_writelocal - same as mdsio_writetile except works for local
2289                         arrays
2290      write_local_r? - higher-level wrapper for mdsio_writelocal
2291      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2292      Example given at end of mom_vecinv.F that dumps some local arrays.
2293    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2294      control flux-form versus vector invariant code.
2295      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2296      or genmake -DISABLE ...
2297    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2298      (additional storing is now needed for case vecinv;
2299      currently nothing implemented to switch this storing off
2300      in case fluxform is used since no CPP flag available).
2301    
2302    checkpoint40pre7
2303    o bug fix in dynamics.F
2304      calc_viscosity called before k=1,Nr loop.
2305    o added some #ifdef's ALLOW_PASSIVE_TRACER
2306    o cleaned initialisations in ctrl_map_ini
2307      related to TAF
2308    
2309    checkpoint40pre6
2310    o split dynamics into thermodynamics & dynamics
2311    o corresponding split of calc_diffusivity into
2312      calc_diffusivity, calc_viscosity
2313      (kpp_calc_diff, kpp_calc_visc).
2314    o Added diffkr, kapgm to control variables
2315    o bug fix in gmredi_slope_limit for ldd97
2316    
2317    checkpoint40pre5
2318    o proper initialization of Adams-Bashforth time stepping
2319      + uses forward step for very first step of model (iter=0)
2320    o re-generated *all* output since almost all output is modified by this
2321      change (sorry but we've been putting this one off for about 2 years)
2322      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2323        *not* regenerated since they are already out of date and I don't
2324        want to create the impression that they are suddenly working.
2325    o removed KAP stuff for DEC's
2326    o modified/added many .cvsignore files in */code and */input
2327    o added new expt "solid-body.cs-32x32x1"
2328      + this uses an alternative form of ini_curvilinear_grid.F which
2329        is not necessarily any better than the current one...
2330    
2331    checkpoint40pre4
2332    o added re-initialisations of utrans,vtrans,rtrans in
2333      calc_common_factors which are crucial for TAF.
2334    o extended iMin,jMin range for calc_common_factors,
2335      calc_diffusivity
2336    o added option ALLOW_PASSIVE_TRACER
2337    o a few minor updates and fixes
2338    
2339    checkpoint40pre3
2340    o created calc_gtr1.F for gad package
2341    o split the_main_loop and re-introduced forward_step
2342    o some recomputations of nIter0 for TAMC
2343    
2344    checkpoint40pre2
2345    o Updated to latest branch of AJA, JMC
2346    o Added gradient check package
2347    o Added routines for passive tracer handling
2348    o Added carbon sequestration sensitivity experiment
2349    
2350    checkpoint39
2351     o Modifications and fixes to support TAMC
2352       (mainly missing or wrong directives)
2353     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2354       in addummy_in_stepping
2355     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2356     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2357     o Included following packages:
2358       cal: calendar
2359       exf: external forcing
2360       ecco: essential routines to control use of cal, exf
2361             (NB: this is not the full ECCO environment)
2362     o disabled some packages by default in genmake
2363    
2364    checkpoint38
2365     o see notes_c37_adj.txt
2366     o corrected wrong layer index in external_forcing_t
2367     o replaced the_main_loop/forward_step by the_main_loop
2368     o removed forceoutput from write_state
2369       (replaced criteria for initial/final state)
2370     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2371    
2372    checkpoint37
2373     o mdsio.F routine split and packaged in pkg/mdsio
2374       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2375        used unless genmake -disable=mdsio)
2376     o allow a more precise surface-geopotential gradient for the atmosphere
2377       taking into account the change in space of Alpha (=1/rho) at the surface.
2378     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2379       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2380     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2381       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2382       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2383     o Time-Average diagnostics defined as a pseudo package "timeave".
2384     o pickup files : old pickup (before c35) did not work with new code (c35
2385       and after) unless activating 2 commented lines in initialise-varia.
2386     o Non-Hydrostatic pickup file Pb fixed.
2387     o bug with Rigid-lid version (since c35) fixed.  
2388    
2389    checkpoint36
2390     o implement Crank-Nickelson barotropic time-stepping
2391     o recover Time-Average diagnostics
2392     o fix Pb in checkpoint (PR#19)
2393     o AIM become a standard package ; clean unused CPP_kees
2394    
2395    checkpoint35
2396     o subtantial rewrite of dynamics.f
2397     o allows staggered time-stepping
2398     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2399     o added bottom drag (linear + quadratic)
2400    
2401    checkpoint34
2402     o Modified exchange routines for correct reverse simulation.
2403     o Added verification output to comply with bug fix in impldiff.F
2404       as of c33 (exp2, natl_box).
2405     o Corrected store directives in dynamics.F
2406     o Corrected array boundaries in impldiff.F
2407     o Corrected array dimensions in gmredi.
2408       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2409     o Added routine GLOBAL_SUM_INT to global_sum.F
2410     o Added mdsio_gl.F for ECCO purposes.
2411    
2412    checkpoint33
2413     o Fixed bug in lower BC in impldiff.F
2414     o Fixed confusion about units of forcing arrays in FFIELDS.h
2415       namely Fu,Fv,Qnet,Qsw,EmPmR:
2416       - Removed verification/natl_box/code/external_fields_scale.F
2417         (did not differ from that in model/src)
2418       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2419         (see FFIELDS.h for description)
2420       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2421         kpp_calc.F and kpp_transport_t.F
2422       - Removed model/src/external_fields_scale.F and calls to it
2423       - verification/natl_box uses flux data with "atmospheric" sign so
2424         a special version of external_fields_load.F is used to
2425         change the data as it's read in. This way, the arrays
2426         have the right units and signs at all times tha a user could
2427         possibly use them.
2428     o Corrected genmake to delete a temporary file during configuration
2429    
2430    checkpoint32
2431     o Scaling of forcing fields moved from external_forcing.F to
2432       external_fields_scale.F, called directly after loading fields.
2433     o Surface relaxation terms added to surface tendency fields in
2434       extra subroutine.
2435     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2436       fields.
2437     o Changes in GMRedi to comply with packaging structure.
2438     o Modifications and bug fixes in KPP package.
2439     o Verification experiment for KPP added (verification/nat_box/)
2440    
2441    checkpoint31
2442     o Packages interface brought in line with defined standard
2443       -> new routines packages_...F
2444       -> changes in initialise_fixed.F, initialise_varia.F
2445       -> enables initialisation interface for ECCO package
2446     o Rescaling of external forcing fields immediately after read
2447       (removed from external_forcing.F)
2448       -> new: surface_fields_scale.F
2449       -> affects ini_foorcing.F, external_fields_load.F
2450     o Computation of surface tendencies before tendency updates.
2451       -> new: external_forcing_surf.F
2452     o Change of variable names useGMRedi, useKPP, useECCO
2453     o Further changes in dynamics.F, impldiff.F for TAMC
2454     o Tested for experiments 0, 2, 4.
2455       - not yet tested for GMRedi.
2456       - not yet tested for KPP.
2457    
2458    checkpoint30
2459     o Updates for OBCs
2460     o New experiment for test OBCs (internal_wave)
2461     o New output.txt in verification/exp4/results/
2462     o Updates for KPP: calculation of viscosity corrected, new variables
2463       kpp_dumpFreq and kpp_taveFreq
2464     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
2465       and entry for T90 in genmake
2466    
2467    checkpoint29
2468     o packaged KPP and GM/Redi
2469    
2470    checkpoint28
2471     o Corrected initialization of hFacMin for difference vertical coordinates
2472     o Modified calculation of partial cell thickness to more robust algorithm
2473     o config_summary.F: replaced write_1D_... by write_0D_...
2474       read_write.F: added subroutines write_0D_...
2475     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
2476       included some initialisations required for TAMC.
2477     o routine calc_isoslopes: modified sqrt computation to make it
2478       differentiable for zero argument.
2479     o routines dynamics, impldiff:
2480       included store directives and tape key computations required for TAMC.
2481     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
2482    
2483    checkpoint27
2484     o fixed calc_isoslopes() to so that cancellation of terms in tensor
2485       formulation works properly with variable resolution.
2486     o restructured the calling tree between the_model_main() and dynamics()
2487     o split initialise() into initialise_fixed() and initialise_varia()
2488     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
2489       in new routine ini_psurf()
2490    
2491    checkpoint26
2492     o moved some #ifdef in optional routines to encompass everything
2493       except the argument declarations. This was using up some memory.
2494     o fixed macros like _ADT to work with both versions of Linux cpp
2495     o cleaned up some unused and uninitialized variables
2496       (helps when debugging with strict compile options)
2497     o split up CPP_EEOPTIONS.h into options and macros
2498       (macros are now in eesupp/inc/CPP_EEMACROS.h)
2499     o patch for 2 processor JAM mode
2500    
2501    checkpoint25
2502     o updates for OBCs and NH
2503     o dramatically reduced memory usage
2504     o added "JAM" routines for use on Artic network
2505     o parameterization of convection by implicit vertical diffusion
2506     o added a diagnostic of convective index
2507     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
2508       (this is was partly for OBCs and NH but also in anticipation of
2509        an explicit free-surface option)
2510     o initial state input files for U and V
2511    
2512    checkpoint24
2513     o Removed some spurious "REAL"s
2514     o Updated KPP to latest version from JPL
2515     o Added a COS(latitude) in horizontal viscosity
2516    
2517    checkpoint23
2518     o Added del^4 diffusion for salt and temperature
2519     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
2520    
2521    checkpoint22
2522     o Made many small changes: implicit none, format(i5), etc...
2523     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
2524    
2525    checkpoint21
2526     o Introduced new I/O package that supports direct-access records (mdsio.F)
2527     o Split-up mid-level I/O routines
2528     o Updated input data for experiments 0,1,2,4 and 5
2529     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
2530    
2531    checkpoint20
2532     o Tidied up open-boundaries some more
2533     o Added non-hydrostatic code
2534     o Fixed some input data
2535     o Modified MPI start-up to work in "coupled" context.
2536    
2537    checkpoint19
2538     o Tidied up directory structure for verification experiments.
2539     o Added new code for open boundaries.
2540     o Corrected advective terms near boundaries.
2541     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
2542     o Implemented free-slip/no-slip BCs and del^4 dissipation.
2543     o Split default parameters out of ini_parms.F into set_defaults.F.
2544    
2545    checkpoint18
2546     o Further changes for optional code generation with
2547       CPP - ugh!
2548    
2549    checkpoint17
2550     o Beginning to incorporating modularity
2551       for supporting atmos. and ocean configs.
2552     o Small changes for TAMC complinace
2553     o New ultra simple test case. Barotropic box
2554       configuration "exp0".
2555    
2556    checkpoint16
2557     o Minor changes to exchange routines to support
2558       accumulation in reverse mode. Adjoint of an
2559       assignment is an addition.
2560     o Changes to support compilation by TAMC (LR(1)
2561       syntax) and by g77 under Linux ( 72 character
2562       limit ).
2563    
2564    checkpoint15
2565     Rewrote exchange routines to allow
2566     o General tile <-> tile connectivity.
2567     o TAMC reverse mode flag ( is this really needed? )
2568     o Variable width overlap and exchange region widths.
2569     o Hooks for sharing data via DMA, Arctic, Memory Channel,
2570       shmput/shmget, VIA, SYSV shmem and every other cool
2571       communication method.
2572    
2573    checkpoint14
2574     Consistent isomorphism chages made. These allow dynamical core
2575     to support both pressure and meters as a vertical coordinate.
2576    
2577    checkpoint13
2578     Release which corrects global_max problem and a couple
2579     of KGM time-averaging diagnostic errors. Also contains
2580     a double-gyre experiment setup as well as the baseline
2581     4 degree global template. The double gyre template is
2582     organised to allow it to be applied automatically to
2583     the baseline configuration.
2584    
2585    branch-point-rdot
2586     A few tidy-ups have been made bt the real point of this
2587     check-point (excuse the pun) is to allow a branch to be
2588     made for the purposes of adding the rDot alterations.
2589     I don't want to commit the rDot to the main-trunk until
2590     we've actually tested it...
2591    
2592    checkpoint12
2593     Tidy up and added generic genmake script (formerly
2594     configure script).
2595     Released to testers.
2596    
2597    checkpoint11
2598     Re-arranged initialise() and introduced ini_vertical_grid()
2599     and ini_masks_etc().
2600    
2601  checkpoint10  checkpoint10
2602   Introduced the configure script.   Introduced the configure script.
2603   Separated out the diags package.   Separated out the diags package.

Legend:
Removed from v.1.8  
changed lines
  Added in v.1.581

  ViewVC Help
Powered by ViewVC 1.1.22