/[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 1.66 by jmc, Tue Mar 5 15:36:06 2002 UTC revision 1.574 by jmc, Sat Oct 22 22:42:07 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 tracer advection scheme:
8      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
9       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
10       was not very convenient).
11      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
12       (further tests needed for the implicit DST & Flux-Limiter schemes).
13    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
14      and sRef for convenience, handy, when you want to initialize
15      ptracers in a large domain with a constant non-zero value. Also,
16      untangle ptracers_init.F a little.
17    
18    checkpoint57v_post
19    o change dome exp. to use variable viscosity in side-drag terms.
20    o remove all the files from the cfc_offline test since they are now
21      incorporated into tutorial_cfc_offline which has been producing
22      identical results for a few days of testing
23    o add new parameter: sideDragFactor to enable half-slip-side BC
24      and change side-drag S/R to use viscosity from mom_calc_visc
25      (can switch back by setting sideDragFactor=0.); affects results at
26      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
27       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
28    o vorticity & strain are now computed without masking, to account for
29      no-slip-side BC in variable viscosity calculation ; mask is applied
30      anyway later on, before computing advection/coriolis terms.
31    o modify exp4 to test new obcs support for reading from external files
32      and for passive tracers
33    o fix behavior of ptracers_monitor when monitor output is written to a
34      netcdf-file; still not independent of monitor.F (writes in the same
35      file).
36    o change default value of tRef (put a uniform, meaningful value for ocean
37      & atmos) and initialize sRef (was missing, as Martin mentioned).
38    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
39      to be proportional to enstrophy dissipation length.  Thus,
40       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
41      This is now consistent with Smagorinsky and with the manual.
42    
43    checkpoint57u_post
44    o OBCS and PTRACERS: add open boundary support for passive tracers
45      - either use homogenous (pseudo) v.Neumann conditions or prescribe
46        OB-values from file; this is not different from the way theta and salinity
47        are treated
48      - however, Orlanski-radiation conditions are not supported, and the model
49        will stop if you use pTracers and Orlanski at the same time.
50      - beefed up the rountine obcs_external_fields_load: now only those open
51        boundary values are overwritten with values from files for which there
52        are really files, otherwise the OB-fields remain untouched. This makes
53        it possible to use different OBs at different ends of the domain (as
54        with EXF)
55    o reduce number of exch calls in shap_filt (s2).
56    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
57      truncation level) 4/5 MLAdjust test results (11&12 digits match).
58    
59    checkpoint57t_post
60    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
61    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
62      same truncation, independent of the face number: affects affects several
63      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
64    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
65      note that biharmonic viscosity + no-slip was not tested in any experiment.
66    o fix bug in non-linear free-surf side-drag ; generate new output for
67      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
68    o make mnc honor the writeBinaryPrec flag for most kinds of output
69    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
70    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
71      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
72    o add brackets in multi-terms sum to get same truncation, independent of
73      the face number (manage to get exactly same value of gU,gV at the cs-edge)
74      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
75    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
76      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
77      a maximum grid-scale Reynolds number.  Also, changes all length calculations
78      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
79      Suggested values of viscosity parameters found in mom_calc_visc.
80      Many new viscosity diagnostics available.
81    
82    checkpoint57s_post
83    o Add clearing-house for viscosity calculations, mom_calc_visc and
84      correct numerous bugs in LeithD and Smagorinsky discretizations.  
85      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
86      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
87      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
88      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
89      The Strain-Tension form is now called with useStrainTensonVisc=.true.
90      ViscAhStrain and viscAhTension are now retired.
91    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
92    o In response to JMC's bug report, genmake2 now ignores any soft-links
93      that it finds in the *current* directory when searching for files.
94      Soft-links found in any other source directories will still work as
95      they did before.
96    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
97      a C routine to unlimit the stack size
98    o mnc-ify pkg/aim snapshot vars
99    o mnc-ify pkg/land as requested by Daniel
100    o various changes to mnc including:
101      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
102      - output can now be grouped so that all files within a group
103          change the ITER portion of their names in lock-step together
104      - can now read ("global") PER-FACE (in addition to PER-TILE) files
105          and works with both EXCH1 and EXCH2 (but needs more testing)
106      - writing works for all verification test cases w/ g77 on Linux
107    
108    checkpoint57r_post
109    o make MNC variable initialization happen earlier
110    o add diagnostics for (almost) each term of the momentum Eq.
111    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
112    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
113    o remove MINIMAL_TAVE_OUTPUT option ;
114      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
115    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
116      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
117    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
118    o add time-dependent SST, SSS control
119    o cost terms in ecco/ modularized (new cost_generic.F)
120    o cost_averages routines are modularized (new cost_averagesgeneric.F)
121    o new infrastructure for seaice model vs. obs misfits in seaice/
122      * driver from the_main_loop.F is seaice_cost_driver.F
123      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
124      * gradient check in Exp. 6a of natl_box_adjoint/
125    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
126      (see README file)
127    
128    checkpoint57q_post
129    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
130    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
131      - bug was reported by Jean-Michel and Ian Fenty
132    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
133      update exp. cpl_aim+ocn output.
134    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
135      Needed for high-res. runs with large global files
136      to be able to limit tapelev size
137    o Changed some tests for adjoint:
138      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
139      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
140      * global_ocean.90x40x15/ back to default 3-level checkpointing
141    o Modifications to enable scripted COMMON to MODULE conversion
142      * verification/OpenAD/code/ has necessary scripts and description;
143      * converts, compiles and runs successfully;
144    
145    checkpoint57p_post
146    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
147    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
148      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
149    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
150    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
151      (was already the case for dissipation with mom_vecinv,
152       and also the case for grad.PhiHyd when staggered-timeStep)
153      This will allow to put dissipation out-off the AB time-stepping.
154     Unfortunately, affects truncation error. Update output of exp. that "fails"
155      (cg2d matching number) and leave the others for later: front_relax(10),
156      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
157      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
158    
159    checkpoint57o_post
160    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
161      (2) its ready to be documented during the 20050801 DocFest
162    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
163      for ideal_2D_oce and lab_sea on linux_ia32_g77
164    o set to #undef CTRL_SET_OLD_MAXCVARS_30
165      in global1x1_tot/code_seaice_adj to access indices 32, 33
166      (worth another tag)
167    
168    checkpoint57n_post
169    o adding precip control xx_precip 32
170    o adding swflux control xx_swflux 33
171    o Replacing 10 forcing penalty cost routines by 1 generic.
172    o Implementing partitioning in time-mean and variable adjustment
173      for atmos. state.
174    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
175    o in natl_box_adjoint:
176      * updated exp 1 to 10
177        (but does not have time-mean vs. variable split results yet)
178    o updated global1x1/*_seaice_adj/
179      to incorporate latest changes
180    o enable useSingleCpuIO for mdsio vector routines
181      (applies in particular to tapelev I/O)
182    o removed inefficient K-loop in all active_file*control*.F
183    
184    checkpoint57m_post
185    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
186      and advect_cs (use EXCH-2 and standard cs-32 grid files).
187    o pkg/exch2: filling of face-corner halo regions is optional
188      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
189    
190    checkpoint57l_post
191     tag before updating tutorials (pre-release-2)
192    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
193       for output and interpolation of input fields onto model grid)
194    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
195       Affects results of exp. rotating_tank ; update output.txt.
196    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
197          and taking the square quantity and/or using a fraction-weight field.
198    o fix aim_diagnostics_init.F mate numbers.
199    o add mnc output capability to diagnostics/diagstat and update
200      our cvsignore files for the ACSII output generated
201    
202    checkpoint57k_post
203    o lab_sea now uses diagnostics package and provides a suite of
204      new EXF diagnostics output.
205    
206    checkpoint57j_post
207    o exf
208      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
209        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
210        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
211      * extended diagnostics output
212        - now includes all EXF variables
213        - hs, hl moved to common block
214        - separate S/R for diagnostics, called after ctrl vector is added
215        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
216        - EXFqnet contains true Qnet (i.e. includes qsw)
217      * updated verif. lab_sea, global_with_exf
218      * Rearranging hflux (exf_mapfields -> exf_getforcing)
219        to ensure that diagnostics sees a true EXFqnet
220    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
221    o diagnostics pkg: change pointers so that 1 diagnostic can be used
222      several times with different frequencies.
223    o mnc-ify the thsice package as requested by Daniel Enderton
224      - the monitor--MNC output needs work
225      - many attributes need to be added (most are currently blank)
226    o mnc-ify theaim_v23 package as requested by Daniel Enderton
227      - many attributes need to be added (most are currently blank)
228    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
229    o add Sadourny like discretization to the 4th.O vorticity advection scheme
230    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
231      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
232         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
233    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
234     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
235    
236    checkpoint57i_post
237    o Diagnostics package was changed: diagnostic allocation is now deactivated
238      by setting an empty file name in the namelist (used to be by setting 0 frequency)
239    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
240      add 1rst Order upwind vertical Shear.
241    o add a quick fix for A/B checkpointing in OFFLINE mode
242    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
243      end-run around the C/Fortran linking horror in eesup/src/timers.F
244    o added pkg/runclock: allows user to terminate run based on wall clock
245    o added non-hydrostatic scaling parameter: nh_am2
246    o pkg/my82: futile attempt to make results compiler-independent by adding
247      some "_d 0", etc. no effect.
248    o for mnc output, fill the 'T' coordinate var with myTime and create a
249      separate 'iter' variable for iteration count
250    o pkg/diagnostics:
251      add new capability: output of Global/Regional & per-level statistics ;
252      tested against monitor output (including land & thSIce) on various exp.
253    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
254    
255    checkpoint57h_done
256      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
257      data.diagnostics, data.gchem, data.ptracers) is done.
258    
259    o pkg/diagnostics: prepare for Global/Regional statistics.
260      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
261    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
262      and rename it: DIFFERENT_MULTIPLE
263    
264    checkpoint57h_post
265    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
266    o pkg/diagnostics: change output frequency, now in seconds (instead
267      of Nb of iterations). This requires to change data.diagnostics.
268    checkpoint57h_pre
269    
270    o in mnc, let the user create the output dir if both mnc_outdir_date
271      and mnc_outdir_num are false
272    o add fflags() to pkg/diagnostics which allows one to specify, on a
273      per-file basis, the file precision [default behavior is unchanged]
274    o added diagnostics to pkg/kpp, including computation of mixed layer
275      depth based on a temperature/density criterion
276    o updated verification/natl_box to test the new pkg/kpp diagnostics
277    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
278    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
279    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
280      not mnc -- this mistake was found by JMC and is now corrected
281    
282    checkpoint57g_post
283    o add Adams-Bashforth 3rd Order time stepping:
284      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
285      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
286    checkpoint57g_pre
287    
288    o make lambda[Theta,Salt]ClimRelax spatially varying
289      (default remains spatially uniform constant based on tau)
290    o added new control variables
291      * init. uVel, vVel, etanN
292      * lambda[Theta,Salt]ClimRelax
293    o separate masks used for ctrl_pack/unpack 'from write_grid' output
294      (suggested by G. Forget)
295    
296    checkpoint57f_post
297    o add parameter "baseTime" = model base time = time at iteration zero
298      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
299      account for baseTime shift
300    o move Coriolis arrays from PARAMS.h to GRID.h
301    checkpoint57f_pre
302    
303    o mnc-ifying the seaice package
304    o introduced an alternative length scale calculation for use in the limiting
305      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
306    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
307    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
308      as well as grad(vort3).  Made it compatible with both approximate form
309      for the cubed sphere and full form of these gradients.  Added flag
310      useFullLeith to select between approximate and full form.  
311    o add "d0" in getcon.F to reduce differences between compilers/platforms
312      update output.txt of exp. fizhi-gridalt-hs
313    o change port_rand funtion to allow to set the seed.
314    o fix obscure MNC bug involving conversion between reals and integers
315      - it caused no problems with certain (eg. gcc, ifc) compilers but the
316        new version is now more standards-compliant
317    o adjoint-related modifications
318      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
319      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
320      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
321    
322    checkpoint57e_post
323    o Adding eddy stress controls a la Ferreira et al.
324    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
325    
326    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
327      update output.txt of exp. fizhi-gridalt-hs
328    o add more "Z" dimensions and associated coordinate vars to MNC
329    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
330    o parameter calendarDumps: when set, approximate months (30-31 days) and years
331      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
332      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
333      months and years.  Requires pkg/cal.
334    o diagnostics: add pickup functionality
335      - off by default for backwards compatibility
336      - current version only uses MDSIO -- MNC will be added
337    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
338    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
339    
340    checkpoint57d_post
341    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
342    o modify verification/ideal_2D_oce so that it tests the creation of mnc
343      output from the diagnostics package
344    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
345    o make genmake2 more portable by using ".$FS" instead of ".f" for more
346      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
347    o add coordinate variables to the MNC output from the diagnostics package
348    o change MNC-flags default value: true when useMNC=TRUE
349    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
350      the ability (off by default) to read the grid information using MNC
351    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
352    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
353    o do snap-shot diagnostics at the middle of the time-interval (instead of
354      at the end).
355    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
356      new test for AIM with thSIce + slab-ocean
357    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
358    o move state variable diagnostics to the beginning of the time step ;
359      (note: still needs some work specially for snap-shot diagnostics)
360      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
361    
362    checkpoint57c_post
363    o Change testing option (-ieee) to get closer agreement between g77 & ifort
364    o generate new output.txt files on faulks with g77 & the new -ieee option
365    checkpoint57c_pre
366    
367    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
368      update output.txt of exp. global_ocean.90x40x15
369    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
370      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
371    o add saltFlux(+File) forcing capability with periodicExternalForcing
372    o allow to use pkg diagnostics for GM-Redi & ThSIce output
373    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
374    o improvements for the MNC output from DIAGNOSTICS:
375      - correct handling of the unlimitied dimension
376      - all dims now have associated coordinate variables
377      - variables located at U, V, and Corner ("Z") points are now written
378        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
379        *all* data points are output
380    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
381    o added pkg/seaice/seaice_monitor.F
382    o mdsio_readfield.F can now read files visible only to master MPI process.
383    o pkg/seaice: some test code for ice-modified ocean stress
384    o exf_getffields interpolation defaults to bilinear for all scalar forcing
385      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
386      spurious negative numbers for precipitation and humidity.  Will cause
387      some small numerical differences for integrations using pkg/exf/exf_interp.F.
388    o pkg/ctrl/
389      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
390        May be enabled via doPackDiag
391      *  introduce z-scaling of
392         + gradient (doZscalePack) and
393         + control (doZscaleUnpack)
394    o pkg/mdsio/
395      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
396      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
397    
398    checkpoint57b_post
399    o simplify options in diagnostics_fill arguments (remove weird combinations)
400    o fix MNC coordinate variables so that they now contain per-face index
401      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
402      general, EXCH2 grids are only aligned to a "local" coordinate system
403    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
404    o Implement instantaneous output within pkg diagnostics:
405      setting a negative frequency in data.diagnostics produces
406     "snap-shot" output (as opposed to time-average if freq > 0)
407    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
408      NOTE: change ptracer diagnostics name: use 2 characters to work with
409            more than 9 tracers. Add also diagnostics of advect & diffus flux.
410    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
411      becomes the coordinate variable for the 'T' dimension
412    o add CF-style coordinate variables to MNC
413      - just a first cut:  numbers are meaningless on the cubesphere and
414        missing along the T axis but otherwise it works!
415    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
416    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
417    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
418      this is based directly on what the model compute, so that the content of
419      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
420    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
421    o clean up build options files for SunOS, in particular
422      - remove -traditional from xmakedepend
423      - change -xarch=v9 to -xarch=native for f77
424      - restore use of make (not gmake)
425      - add CC=gcc if using g77
426    o changes per discussion of AM, JMC, & EH3 today:
427      - move redundant "grid" variables out of "state" -- in preparation of
428        creating proper CF-style coordinate variables and in recognition
429        that any/all grid variables can be easily copied (eg. w/NCO) from
430        the grid files into any of the other NetCDF files
431      - *always* output grid variables with MDSIO (this will eventually be
432        changed)
433      - output MNC grid file if useMNC is true
434    o every instance of _END_MASTER() has been found and replaced with
435      _END_MASTER( myThid ) in order to satisfy certain picky Sun
436      preprocessors
437    o re-arrange diagnostics pkg initialisation:
438     - allow each package to extend the available diagnostics list
439     - add some checking and fix small problems (multi-threaded, ...)
440     - new S/R diagnostics_fill (replace fill_diagnostics):
441       look through the short list of active diag. (instead of the long list)
442       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
443    
444    checkpoint57a_post
445    o this set of changes restores TAMC compatibility
446      tested for global_ocean.90x40x15 adjoint on trough
447      (what a pain)
448    
449    checkpoint57a_pre
450    o some modifs in tools/build_options for sunos
451    o call ctrl_pack for ctrl at end for optimcycle=0
452    
453    checkpoint57
454    o add horizontal bi-harmonic viscosity for vertical velocity
455      - new parameter viscA4W (defaults to viscA4)
456      - affects only non-hydrostatic code
457      - to be done: no-slip lateral boundary conditions
458    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
459    o implement Implicit Vertical advection for pTracers
460    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
461      (implemented also for implicit vertical diffusion & advection)
462    o OBCS: extend application of tracer open boundary conditions
463      to a strip beyond the boundary of width Olx/Oly
464    o add call monitor to TAF set of required calls (flow directives)
465      and include in natl_box_adjoint
466    o untangle a few ifdefs related to cost, ctrl, autodiff
467      untangel a few ALLOW_ECCO_OPTIMIZATION
468    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
469      (theta2, salt2 in ecco_cost_weights)
470    
471    checkpoint56c_post
472    o OBCS as control variables
473      - update ctrl_ad_diff.list, obcs_ad_diff.list
474      - remove balance of obcs controls from default
475      - fix index bug nobcs in ctrl_init
476      - fix dummy fields filen in ctrl_pack
477      - add dummy weights for obcs
478    o lsopt: comment out fort.94 output
479    o optim:
480      - remove unnecessary header files
481      - adjusted namelists
482      - add xerbla.F to Makefile
483    o exf:
484      - multiple modifications of exf_check_range
485      - unit change in exf_init_runoff from [m/year] to [m/s]
486    o mdsio:
487      - i/o-vector change debugLevel from debLevA to debLevB
488    
489    checkpoint56b_post
490    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
491      is called from DO_THE_MODEL_IO
492      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
493      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
494      - clean up PTRACERS_WRITE_TIMEAVE a little
495    o add another verification experiment that tests both the cfc-pkg and
496      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
497      reactive tendencies treated inline with regular timestepping
498    o testreport previously did a lousy job of comparing small numbers, so
499      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
500      implemented in the little c-progam tmp_cmpnum.c which is embedded in
501      testreport.
502    o ptracers_monitor: bug fix for MPI
503    
504    checkpoint56a_post
505    o GCHEM: finish reorganizating the package
506      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
507        (introduces another 3D-array for each passive tracer, but only if
508        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
509        gchemTendency is not needed because the timestep is done separately)
510      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
511      - GCHEM is now---more or less cleanly---separate from PTRACERS
512      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
513        so clear to me how that should be done in a general way.
514    o CFC: improve formatting of output in CFC_ATMOS
515    o PTRACERS:
516      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
517        that ALL experiments with ptracers enable can be checked. This makes
518        GCHEM_MONITOR obsolete.
519      - include a runtime parameter PTRACERS_monitorFreq that defaults to
520        monitorFreq
521      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
522    o add PTRACERS (PTR0[1-5]) to testreport output
523    o exf_check_range:
524      * default changed to .TRUE.
525      * will check values for niter0 if debLevA, every timestep if debLevB
526      * STOP in exf_check_range if 'out of range'
527      * range chosen generous to allow for potential extema
528      TBD: a version with stricter range
529           permitted range would be runtime parameters
530    o GMredi:
531      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
532      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
533      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
534    o GCHEM:
535      - move call to GCHEM_FORCING_SEP, so that it is now called before
536        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
537      - introduced a useGCHEM runtime flag and applied it everywhere.
538      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
539        this flag is now only visible within GCHEM-pkg routines.
540      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
541        be replaced by a 3D array that is computed before thermodynamics; for
542        this, the tracer ID iTracer had to be included into the parameter list
543        of ptracers_forcing
544      - set up forward_step to call gchem_forcing, that will replace
545        gchem_forcing_int in ptracers_forcing
546      - cleaning up
547    o small cleaning of exch2: remove files that are also in eesupp/src
548    
549    checkpoint56
550    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
551    o mnc: cleanup "full" files--fixes out-of-memory problem
552    o ECCO-GODAE
553      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
554      * fully merged and updated from SIO code
555        windstress sign change affects
556        - exf_inscal_[u/v]stress
557        - sign of xx_tau[u/v] adjustments
558        - signs in cost_scat
559      * ctrl_get_gen: avoid update of tau[u/v] for first few days
560      * natl_box_adjoint updated and compressed
561      * 2-level checkpoint switch added
562        (tested in EXP. 1 of natl_box_adjoint)
563      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
564    o SVD
565      * first complete, non-hacked version for SVD calculations
566      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
567        performed via direct access files admtlm_vector.it????
568        (via ctrl_[un]pack)
569      * optimcycle is used for ARPACK iteration counter
570        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
571      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
572        and add linear transforms where necessary
573      * controls are initial/final SST, SSS (can be extended; need to check
574        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
575    o mdsio: filename info to both stderr, stdout
576    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
577      from sign change
578    
579    checkpoint55j_post
580    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
581      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
582    o add consistent build directories and .cvsignore files to verification
583    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
584    o make all subroutines 30 or less characters in length for certain older
585      compilers to work (a thorough search only turns up two routines in
586      pkg/ptracers)
587    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
588      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
589    
590    checkpoint55i_post
591    o change arrays for total vertical diffusivity (2.D if explicit,
592      3.D if implicit) ; each ptracer uses its own background value.
593    o added mnc/NetCDF output capability to ocn_compon_interf
594      - added bits to verification/cpl_aim+ocn so that it can run on
595        ITRDA and other clusters without the mpirun "-wd" option
596    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
597      configuration
598    o give MNC the ability to create additional files rather than
599      exceeding a specified file size limit "MNC_MAX_FILESIZE"
600      - the default is just less than 2GB which is a practical limit
601        on many systems
602    o Compute the non-local term using either KPP vertical diffusivity (=default)
603       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
604    
605    checkpoint55h_post
606    o add verification test "vermix"
607    o remove all the *_ioinc flags and replace with the single global
608      outputTypesInclusive flag
609    o allow to set a vertical profile of vertical diffusivity for T & S
610    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
611    o useMNC moved from data.mnc to data.pkg
612    
613    checkpoint55g_post
614    o Renaming carbon AD experiments to comply with testreport conventions
615    o Updating adjoint of Held-Suarez hs94.1x64x5
616    o Fixing directives for non-ECCO forward_step, after ECCO directives
617      have been fixed to avoid recomp. of do_oceanic_phys
618      Works well for global_ocean.90x40x15,
619      but recomp. issue remains for carbon
620    o Updating adjoint output for natl_box_adjoint after
621      pkg/ecco has been modified (see taga c55d_post)
622    
623    checkpoint55f_post
624    o rename to timeave_init_fixed
625    
626    checkpoint55e_post
627    o some delicate re-shuffle of store directives to avoid one
628      extra call of do_oceanic_physics
629      affects ecco_the_main_loop.F, do_oceanic_physics.F
630      checkpoint_lev1_directives.h
631    o NB: this may break global_ocean adjoint temporarily,
632      but it is clear how to fix it. Will do later, need this now.
633    
634    checkpoint55d_post
635    o ECCO specific cost function terms (up-to-date with 1x1 runs)
636    o ecco_cost_weights is modified to 1x1 runs
637    o modifs to allow observations to be read in as
638      single file or yearly files
639    o enable to read exf forcing fields as either
640      single file or yearly files (flag useExfYearlyFields)
641    checkpoint55d_pre
642    
643    o switch between 2-level and 3-level checkpointing
644    o add ability of MNC to write local and "partial" (eg. 2D slices where
645      the full 3D field is never actually stored) arrays to NetCDF files
646      with the correct (that is, the complete multi-dimensional) set of
647      array indicies
648      - used in mom_vecinv() to write the diagFreq output
649      - tested (demonstrated) in verification/aim.5l_cs
650    o further mnc-ification
651      - add verification/lab_sea to the list with mnc setups
652      - fix undefined mnc v-names in cd_code
653      - add kpp to mnc output (both snapshot and timeave)
654    o non-hydrostatic code
655      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
656        in calc_gw.F
657      - defaults to viscAh
658      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
659        friction or Leith) in non-hydrostatic mode, as long as there is
660        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
661    o pkg/cost
662      extend simple cost functions to treat time mean quantities
663      (T,U,V) via cost_accumulate_state from cost_tile
664    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
665        be 2 times larger than the minimum size the advection scheme requires.
666        now get a perfect conservation of salt in advect_cs test-exp (updated)
667    o GGL90 (Gaspar's TKE mixed layer)
668      - add horizontal diffusion of TKE, requires exchanges in
669        do_fields_blocking_exchanges, horizontal diffusivity is zero by
670        default. In OPA there is no horizontal diffusion of TKE but the
671        mixing coefficients are computed from a horizontal average of TKE of
672        6 points or so. I think that diffusion has a little more physical
673        justification.
674      - clean up ggl90_calc in the hope of reducing memory usage (this hope
675        was in vain)
676      - mask tke-variable in ggl90_init
677    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
678    o fix biharmonic diffusion on CS-grid.
679    o more obcs stuff
680      - added obcs_external_fields_load as an alternative to the EXF-pkg option
681        for reading boundary values. This routine is called from
682        obcs_prescribe_read
683      - updated obcs_check
684      - changed sponge layer relaxation parameter units for days to seconds
685      - turned off sponge layer by default
686      - changed argument list of OBCS_CALC to myTime+deltaTclock
687      - fixed about 35 bugs in obcs_external_fields_load
688    
689    checkpoint55c_post
690    o obcs stuff
691      - new runtime flags useOBCSprescribe, useOBCSbalance
692      - re-arranged obcs_calc
693      - moved exf_getobcs to obcs_prescibe_read
694        obcs_prescibe_read is called after ORLANSKI stuff
695        and independent of it (executable can contain all).
696      - updated obcs_check
697      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
698        These may be necessary only if tangential velocities are
699        prescribed at OB, not sure, needs testing.
700    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
701      which simplifies the calls and passes the ifc check-bounds test
702    
703    checkpoint55b_post
704    o add a 2D scalar, Z location, exchange_2 routine.
705    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
706      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
707      affects advect_cs results (for the wrong reason): update output.txt
708    o use a more standard discretization for biharmonic viscosity ;
709     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
710      affects results of dome set-up: update output.txt
711    o fix gad_advection.F (CubedSphere part), back to version 1.23
712    o fix bug in mom_vi_del2uv.F (CubedSphere part).
713    
714    checkpoint55a_post
715    o merged code to
716      * prescribe/read time-dependent open boundaries
717        (works in conjunction with exf, cal)
718      * sponge layer code for open boundaries
719      * each boundary N/S/E/W now has its own CPP option
720        (healthy for the adjoint)
721    
722    checkpoint55
723    o up-to-date adjoint of previous breaks
724      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
725      - global_ocean_ebm: adjoint still needs fix (TLM ok)
726      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
727      - carbon: * remove tr1-related adjoint verification
728                * add ptracer as control variable
729    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
730      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
731    
732    checkpoint54f_post
733    o in verification/carbin/ remove experiment related to
734      ALLOW_PASSIVE_TRACER (array tr1 etc)
735      code_ad/ input_ad/ results_ad
736    
737    o add two new packages
738      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
739        + subject to optimization (memory)
740      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
741        + subject to reordering (many GOTOs in the original code)
742        + so far opps is called for every (i,j) point, and then operates in
743          the vertical; one may want to reorder the scheme in order operate in
744          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
745          fields)
746    o overhaul of IO so that we now have flags for MDSIO and/or MNC
747      - all verification tests compile and run with linux_ia32_g77
748      - defaults are compatible with current input files--nothing
749        should change if you were not previously using MNC
750      - MNC output has been added in numerous places (eg. timeave)
751        but there are still a few writes not yet do-able with MNC
752        (this is in progress)
753      - flags now allow for either/or/both use of MDSIO and MNC and
754        documentation will soon follow
755      - numerous small formatting cleanups for ProTeX
756    o add version info (via BUILD_INFO.h) to MNC and stdout
757    
758    checkpoint54e_post
759    o add two new packages
760      - pp81 (Packanowski and Philander, 1981), Richardson number and
761        stratification dependent mixing
762      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
763      - these scheme operate in a similar manner as KPP (without ghat, of
764        course), however there is only one diffusivity that is used for both
765        temperature and salinity (and passive tracers)ç
766    o add offline package
767    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
768      provided by Stephanie Dutkiewicz
769    o genmake2: add ability to search for C compilers and cleanup test output
770      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
771    
772    checkpoint54d_post
773    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
774    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
775      leading to additional shift by 5 days each year of integration
776       (i.e. leading to considerable offset over the years)
777    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
778    o start with no AB and no initial filtering (staggerTimeStep):
779      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
780    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
781      (external loading & cpl import/export stay in forward_step.F)
782    o update coupling interface to work with new staggerTimeStep
783    o change MDSIO ptracers_pickup.
784    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
785    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
786    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
787    
788    checkpoint54c_post
789    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
790      this affects (truncation error) output.txt of test-exp:
791       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
792    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
793    o change Qnet to always be the net heat flux, (+upward).
794      affects (truncation error) output of natl_box exp.: updated
795    o define the max number of passive tracers in PTRACERS_SIZE.h
796    o start to test mnc routinely in exp0
797    o add sea-ice loading (sIceLoad) as a new forcing field.
798    
799    checkpoint54b_post
800    o add testreport "-j JOBS" option for parallel builds (tested and pretty
801       impressive on Altix and Opteron systems)
802    o diagnostics can now write NetCDF files through the mnc package
803    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
804    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
805    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
806      affects (truncation error) output of lab_sea & natl_box exp.: updated
807    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
808    
809    checkpoint54a_post
810    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
811    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
812    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
813    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
814      + internal_wave (shift in writing cg2d_ini_res)
815    checkpoint54a_pre
816    
817    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
818      - modified verification/lab_sea and natl_box_adjoint accordingly
819    
820    checkpoint54
821    checkpoint53g_post
822    o prepare splitting of thermodynamics: store convect.counter in common block
823    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
824      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
825    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
826    o new parameter "nShapS": allow to treat differently S from T (nShapT)
827    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
828    o restore adjointability
829    
830    checkpoint53f_post
831    o modifications that affect AIM experiment results (update output.txt):
832      - no advection of S at top interface Nr (pkg/generic_advdiff)
833      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
834    o AIM pkg:
835      - include stability function into surf.Flux derivative relative to Tsurf
836      - calculate clear-sky radiation & surface temp. change (for diagnostics)
837    
838    checkpoint53e_post
839    o merged cylindrical coord configuration
840    o added rotating_tank experiment
841    checkpoint53e_pre
842    
843    checkpoint53d_post
844    o faulks upgraded: re-generate output.txt that have changed:
845       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
846    o Added Bryan and Lewis, 1979, vertical diffusivity profile
847    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
848    o added Sadourny discretization of Coriolis
849      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
850      - re-enabled use of omega3 (useAbsVorticity)
851    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
852      vector-invariant equations
853      - note: does *NOT* yet use same variable visc. for no-slip BC's.
854    o recoded the lateral boundary conditions for non-hydrostatic w, this time
855      hopefully without new bugs
856      - still to do: biharmonic friction for non-hydrostatic w
857    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
858    o regenerated output for global_ocean_ebm (using -ieee)
859    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
860      of mom_common/
861      - simple re-arrangement of instructions within computing loop
862    checkpoint53d_pre
863    
864    checkpoint53c_post
865    o new version of coupler for AIM+thSIce and Ocean models
866     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
867     - land: change Evaporation of snow
868     - aim with thSIce: fix bug in snow-precip.
869    o changes to calc_gw.F
870     - bug fix for w^2 term near the bottom boundary
871     - (hopefully) improve the lateral slip boundary condtions for use with
872        partial/looped cells
873      - because the bug fix changes two verification experiments anyway (exp5
874        and plume on slope), change the lateral boundary condition from half slip
875        to the value of no_slip_sides
876    o ebm package wasnt quite up to the parallel task. Fixed that.
877    o Adjoint of EBM package + verification
878      * TLM OK
879      * ADM not sufficient accuracy yet (needs further testing)
880    
881    checkpoint53b_post
882    o Commiting new energy balance model to repository
883      * package is pkg/ebm
884      * verif. is verification/global_ocean_ebm
885      * references are in ebm_driver.F
886    C      * X. Wang, P. Stone and J. Marotzke, 1999:
887    C        Global thermohaline circulation. Part I:
888    C        Sensitivity to atmospheric moisture transport.
889    C        J. Climate 12(1), 71-82
890    C      * X. Wang, P. Stone and J. Marotzke, 1999:
891    C        Global thermohaline circulation. Part II:
892    C        Sensitivity with interactive transport.
893    C        J. Climate 12(1), 83-91
894    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
895    C        Destabilization of the thermohaline circulation
896    C        by atmospheric eddy transports.
897    C        J. Climate 7(12), 1870-1882
898    o Will need long integration testing.
899    checkpoint53b_pre
900    
901    o created pkg/mom_common in preparation for variable viscosity code
902    o renamed and split ini_mnc_io
903    o pkg/land: only liquid water can diffuse or run-off
904    o AIM using land: soil wetness availability account for snow
905    o added printMapIncludesZeros to EEPARMS namelist
906    
907    checkpoint53a_post
908    o restore TAMC compatiility for exf_constants.h
909      (no usage of _d in .h)
910    o Additional storing in KPP in an attempt to fix
911      TAMC problem with adjoint of KPP code.
912      (no success...)
913      Identical code works fine with TAF.
914    o Fixed verification/natl_box_adjoint experiments.
915      Initial conditions for Experiments 4 and 5 are now
916      set to "SEAICE_initialHEFF=0", which is more reasonable,
917      and hence gives results closer to that of Experiment 2.
918      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
919    
920    checkpoint53
921    o stable checkpoint with up to date adjoint
922      TLM tests only run for 1st grdchk at the moment. Its unclear if
923      this is a code problem or a problem with resetting code for g_
924      variables that is being autogenerated wrong.
925      Otherwise:
926       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
927       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
928         are both still in chaos following their security messes.
929    
930    checkpoint52n_post
931    o various build (mostly genmake2) changes including:
932      - ability to build/run more easily within Cygwin and MacOS X
933      - more complicated Makefiles with a stronger dependence on Gnu Make
934    o pkg/seaice modifications
935      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
936        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
937        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
938      - changed proxy for geostrophic velocity and updated
939        verification/lab_sea/results/* accordingly
940      - removed ADI dynamic solver from pkg/seaice
941      - replaced all occurrences of 1/CSTICE or 1/CSUICE
942        they caused a segmentation fault under certain circumstances
943      - removed unused field WATR
944    o bug fix in exf-package:
945      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
946         now reflect that.
947    o small fixes in the cal-package:
948      - set reference date to first of January for the 'model'-calendar
949      - failing of cal_CheckDate in cal_FullDate now actually results in a
950        warning
951    o small modifications in exf-package to increase flexibility:
952      - change climtempfreeze from a constant to a runtime parameter that
953        is specified in data.exf_clim (default = -1.9)
954      - introduce runtime parameter windstressmax (default = 2.0) that is
955        specified in data.exf
956    o fix in pkg/thsice:
957      - update Evap (Tsf changes) to be consistent with Latent heat flux
958      - maintain snow precipitation unchanged (even if Tsf >=0).
959     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
960    
961    checkpoint52m_post
962    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
963      this does not change any of the results, because myIter=0 in swfrac always
964      lead to jwtype=2 (the default anyway), but the call makes little sense
965      as a default
966    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
967    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
968      atmospheric model (AIM) to use it ; add a "slab ocean" component.
969    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
970    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
971    o extending useSingleCpuIO option to work with new exch2 I/O format
972      - old-style, missing-tile I/O is still accessible by defining CPP
973        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
974    o monitor package can write to NetCDF files and/or STDOUT
975    o fix re-definition bug in MNC_GRID_INIT_ALL()
976    o doc/api_reference added
977      - a framework for building an API Reference Manual using all
978        the "protex" comments embedded in the code
979      - see pkg/generic_advdiff, pkg/mnc for examples
980    o MNC:
981      - make myThid the last argument for all subroutines
982      - new default for the grid files: NO halos
983      - add useMNC and other run-time flags
984      - separate per-file-group handling of the unlimited dimension
985      - early initialization of MNC w/ flags read at the eeboot stage
986        and lookup tables set in initialize_fixed
987      - write all MNC output to a freshly-created directory
988    o thermodynamics sea-ice (thsice) is now tested with testreport.
989    o test exp. advect_cs: use the standard cs32 grid ; update output.
990    o Added functionality to grdchk:
991      pick global i,j,k position (or nearest wet) where to perform check.
992    
993    checkpoint52l_post
994    o new land formulation:
995      a) use ground enthalpy as prognostic variable to ensure exact
996         energy conservation.
997      b) account for water temperature and for latent heat of freezing
998         in all processes (rain, run-off, ground storage)
999      c) compute surface and ground temperature implicitly.
1000    o aim_v23 modification for new land model:
1001      a) Treat separately land / ocean / sea-ice surface fluxes
1002         to allow implicit computation of land & sea-ice surface temp.
1003      b) add snow precipitation.
1004    checkpoint52l_pre
1005    
1006    o fix problem (when 1 tile is empty) in min/max monitor.
1007    o fix bug in timeAve (u,vZetatave in common block)
1008    o no restoring terms under ice for pkg/seaice
1009    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1010    o bug fix for pkg/seaice pickups
1011    o change MNC call locations and add coordinate attributes
1012    o mask vorticity at the corner ; affects global_ocean.cs output
1013    o fix ini_curvilinear_grid ; test CS experiments with mpi
1014    o aim.5l_cs: modify sea-ice fraction input file ; update output
1015    o exf: Adding simple range check routine for exf fields after read
1016    
1017    checkpoint52k_post
1018    o removed top-level directory "diags"
1019      - we migrated these functions to pkg/timeave a long time ago
1020    o fixed bug introduced in pkg/monitor
1021    o accuracy ctrlprec = 32 insuffient for gradient checks using
1022      averaged fields (I/O via cost_averages)
1023      -> use ctrl.h in active_file*.F to control I/O precision.
1024    o paramter list of CALL ADTHE_MAIN_LOOP
1025    o added initial do_the_model_io to ecco
1026    o set all ...Freq to zero after cost_final
1027      taveFreq, dumpFreq, pChkptFreq
1028    o MAIN and ECCO differentiability restored
1029    
1030    checkpoint52j_post
1031    o fix nchklev in tamc.h for global_ocean...
1032    o Bringing flow and store directives up-to-date
1033    o Really weird thing!
1034      call do_the_model_io from the_main_loop with parameters
1035      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1036      TAF places a faulty re-call of initialise_varia
1037      after cost_final call which should not be there!
1038    checkpoint52j_pre
1039    
1040    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1041      error messages
1042    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1043    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1044      debug output
1045    o modfied mdsio_writefield.F to handle non-global files under exch2
1046    o update AIM Cubed-Sphere exp (aim.5l_cs):
1047      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1048    o update AIM Equatorial Channel exp:
1049      use standard aim_v23 pkg and change the SST fields to be more realistic.
1050    o globalFile now works with exch2
1051    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1052      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1053    o limit timeave output for hi-res integrations
1054    
1055    checkpoint52i_post
1056    o removed CPP_EEOPTIONS.h from verification/*/code
1057    o updated the tiling for global_ocean_pressure
1058    checkpoint52i_pre
1059    
1060    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1061      the old pkg/aim).
1062    
1063    checkpoint52h_pre
1064    o shortened offending lines in exch2_send_rx?.template
1065    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1066    o genmake2: add build & execute test for NetCDF code
1067    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1068      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1069    o added useSingleCPUIO flag to monitor.F and mon_out.F
1070    o added temporary hack for sea-ice dynamics on the cube:
1071      metric terms are ignored and it is assumed that
1072      there is no sea-ice on cube faces 1, 2, 4, and 5.
1073    
1074    checkpoint52f_post
1075    o added exch2 cube routines to pkg/exch2
1076    o modified hs94.cs-32x32x5 to use it
1077    o added new grid files to hs94.cs-32x32x5
1078    checkpoint52f_pre
1079    
1080    checkpoint52e_post
1081    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1082      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1083    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1084      to work with implicit vertical advection and AB ;
1085    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1086    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1087     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1088    checkpoint52e_pre
1089    
1090    o fix bug in impldiff when Nr=1 or Nr=2.
1091    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1092    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1093    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1094      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1095    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1096    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1097    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1098    
1099    checkpoint52d_post
1100    o re-tiled many expts to allow comparison in multi-processor mode
1101      - updated output accordingly
1102      - changed hs94.128x64x5 to use intial T from file rather than use the
1103        random number generator
1104    o add infrastructure in model routines for fizhi and gridalt packages
1105    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1106    o changes to permit hi-res, cubed-sphere, configuration
1107      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1108      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1109      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1110        of surface winds for the cube
1111      (A verification experiment, based on global_ocean.cs32x15, but with
1112       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1113       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1114       complete with example surface forcing files and matlab scripts to look
1115       at the output and compare it with that of global_ocean.cs32x15.)
1116    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1117       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1118       to conform to the common rule.
1119    o check-in the first version of the coupler + interfaces for multi-components
1120       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1121       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1122       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1123       - ocean and atmos. share the same horizontal grid (no interpolation).
1124       - exchanges between component and coupler is done in forward_step
1125    o new verification experiment, cpl_aim+ocn:
1126       coupled ocean - AIM atmosphere on cs32 grid.
1127    
1128    checkpoint52d_pre
1129    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1130    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1131    
1132    checkpoint52c_post
1133    o Fixing OPTIONS files for use of exf:
1134      - ALLOW_ECCO not needed
1135      - ECCO_CPPOPTIONS.h should not be included from
1136        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1137        as has been the case in the past
1138      - All cal/exf related options are currently set in
1139        single header file. Should remain so until we
1140        agree on a consistent new policy.
1141    o Removed all CPP options for cal package.
1142      cal has no more CPP options.
1143    o modified STOREs in GAD_ADVECTION
1144    o corrected key comp. for passkey
1145    
1146    checkpoint52b_post
1147    o new version: "thsice" of thermodynamic sea-ice pkg:
1148     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1149     - modify fluxes but do not change theta directly;
1150     - light cleaning of bulk_force pkg (still needed with thsice).
1151     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1152       + output_thsice.txt to test thsice & bulk_force pkgs.
1153    o put back grid & coriolis monitor output.
1154    checkpoint52b_pre
1155    
1156    o call "do_the_model_io" at the beginning (=> dump initial state)
1157    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1158    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1159      (need info on NUMBER_OF_PTRACERS)
1160    o missing PTRACERS headers in some routines
1161    o default tamc.h in pkg/autodiff supposed to crash
1162      to ensure proper customization
1163    
1164    checkpoint52a_post
1165    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1166      - moved surfaceTendencyTice from pkg/seaice to main code
1167      - subroutine FREEZE_SURFACE now limits only surface temperature
1168        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1169        => new output.txt for global_ocean.cs32x15 & global_with_exf
1170      - keep the old version of FREEZE for backward compatibility;
1171        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1172      - corresponding modifs for TAF directives
1173    o added surface flux output variables to TIMEAVE_STATVARS
1174    o time-averaged output for pkg/ptracers
1175    o fix problem with ECCO-related divided adjoint
1176      snapshot file was missing some ad-variables,
1177      but no warning issued by TAF
1178    
1179    checkpoint52a_pre
1180    o some bug fixes for #undef REAL4_IS_SLOW
1181    
1182    checkpoint52 = ecco_c52_e35
1183    o after testing adjoints of checkpoint51u_post
1184    
1185    checkpoint51u_post
1186    o this is the post-merge tag of the ecco-branch
1187      (needs another clean checkout and re-testing)
1188    o various natl_box_adjoint configs and results
1189      but no input fields
1190    o obcs adjoint not yet merged!
1191    o adding ECCO global 1x1 and 2x2 degree configs
1192    o updated/extended some store directives for seaice
1193    o pkg/ecco now containes ecco-specific part of cost function
1194    o top level routines the_main_loop, forward_step
1195      supersede those in model/src/
1196      previous input data.cost now in data.ecco
1197      (new namelist ecco_cost_nml)
1198    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1199    
1200    checkpoint51t_post
1201    o this is the pre-merge tag of the ecco-branch
1202    
1203    checkpoint51s_post
1204    o cleanup: removed various obsolete #define-s
1205    o pkg/grdchk
1206      - renamed 'ph-grd 3' to 'grad-res'
1207      - merged from ecco-branch
1208        (remaining bug fixes for obcs gradient checks)
1209      - additional high-precision output for testreport
1210        (grep for 'precision_grdchk_result')
1211    
1212    checkpoint51r_post
1213    o cleaned up or removed CPP_OPTIONS.h files
1214    o updated results for some of the tests to reflect the new
1215      optfiles (-ieee: -O0 instead of -O3)
1216    
1217    checkpoint51q_post
1218    o cd_code:
1219      - moved cd_scheme.F -> cd_code_scheme.F
1220      - separate read_checkpoint from cd_code_ini_vars.F
1221      - separated cd_code part from write_checkpoint
1222      - updated AD_SOURCE, generated .flow
1223      - added CD_CODE_VARS.h to the_main_loop
1224      - Moving cd_code specific store dir.s to pkg/cd_code
1225    o ctrl package totally restructured
1226      - pack/unpack now optional and decoupled from
1227        xx_/adxx_ I/O
1228      - ctrl_pack/unpack cleaned
1229        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1230      - confined inclusion of AD_CONFIG.h to where necessary.
1231    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1232    
1233    checkpoint51p_post
1234    o create initial cd_code package
1235      - WARNING: the initialization of fields within packages
1236        is broken because INI_FIELDS (where READ_CHECKPOINT is
1237        called) is called *before* PACKAGES_INIT_VARIABLES.
1238        This seems to be backwards since
1239        1) its important to initially zero the entire field including
1240           the "halo" region
1241        2) zeroing needs to be done *before* reading pickup info
1242           and the pickup call might or might not happen in any
1243           particular run
1244      - this needs an overhaul for R2
1245    o cleanup verification/*/code/GMREDI_OPTIONS.h
1246    o cleanup testreport
1247    
1248    checkpoint51o_post
1249    o bringing AD-related verif's up to date with genmake2
1250      - carbon/
1251      - global_ocean.90x40x15/
1252      - hs.94.1x64x5/
1253      - (front_relax/ )
1254    o (more) consistent directory structure for AD-related verif.'s
1255    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1256    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1257    o bug fix in find_alpha.F for MDJWF:
1258      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1259        change rho -> rho-rhoConst
1260      - replace call find_rho to find_rhonum
1261    o initialisation of rFlx extended to full array (required by TAF)
1262      and shifted to thermodynamics
1263    o removed PTRACERS.h in ptracers routine
1264    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1265    o Correcting initialisations for fVerU, fVerV.
1266    o helping TAF to recognize dependency on kUp for
1267      fVerU, fVerV
1268    o Replacing delZ by delR in pkg/ctrl/
1269    checkpoint51o_pre
1270    
1271    o undid all of cp51 pending some cleanups and discussion
1272    o added the [#include "AD_CONFIG.h"] statement to all files that need
1273       it for adjoint/tl #defines
1274     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1275     o removed tools/genmake since it no longer works
1276    
1277    checkpoint51n_post
1278    o modifications to make FREEZE flux visible to pkg/kpp
1279      - moved surfaceTendencyTice from pkg/seaice to main code
1280      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1281      - subroutine FREEZE now limits only surface temperature
1282        (this means new output.txt for global_ocean.90x40x15,
1283         global_ocean.cs32x15, and global_with_exf)
1284    o added surface flux output variables to TIMEAVE_STATVARS
1285    
1286    checkpoint51n_pre
1287    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1288    o added [#include "AD_CONFIG.h"] to all files that use the following
1289      defines:
1290      - ALLOW_ADJOINT_RUN
1291      - ALLOW_TANGENTLINEAR_RUN
1292      - ALLOW_ECCO_OPTIMIZATION
1293    
1294    checkpoint51m_post
1295    o incorporating changes to get TAMC/TAF working in genmake2
1296      - added new TAMC/TAF targets to the Makefile
1297      - various cleanups related to package handling
1298      - these changes should have no impact on the forward model
1299    
1300    checkpoint51l_post
1301    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1302     - faster algorithm for cal_addtime.F
1303     - higher precision arithmetic, where needed
1304     - pkg/exf *startdate variables changed from calendar date to
1305       model integration time
1306    
1307    checkpoint51l_pre
1308    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1309    o enable to apply restoring on S & T only in a latitude band.
1310    o update output (external_forcing_surf modif. change truncation errors)
1311       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1312    
1313    checkpoint51k_post
1314    o change default to: useNHMTerms=.FALSE.
1315     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1316       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1317     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1318        exp1, ideal_2D_oce
1319     - change data file of oceanic exp (leave the results unchanged for now)
1320       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1321    o set gravitySign automatically according to the vertical coordinate used
1322      (and change sign: back to "logical" value: +1 when R increases downward)
1323    o added an include barrier to the default CPP_OPTIONS.h and
1324      removed the #include "PACKAGES_CONFIG.h" from it
1325    o fix a bug in mom_fluxform (from chk51j_post)
1326    
1327    checkpoint51j_post
1328    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1329    o adjusted some flow directives (dynamics, thermodynamics)
1330    o added cubed-sphere case to test cost function
1331    o heckpoint_lev?_directives.h now include
1332      pkg-specific directives, whenever those are enabled.
1333    o Moving pkg-specific flow directives to corresponding pkg
1334      Moving pkg-specific differentiation list to corresponding pkg
1335      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1336      ---> conventions are
1337           - pkg_ad.flow
1338           - pkg_ad_diff.list
1339           - pkg_ad_check_lev?_dir.h
1340    
1341    checkpoint51i_post
1342    o merge of the branch-genmake2
1343      - knowingly breaks the older genmake
1344      - automatic generation of all ALLOW_${PKG_NAME} defines
1345      - new testreport supersedes older testscript
1346    o large number of package inclusion and header cleanups
1347    checkpoint51i_pre
1348    
1349    o new output for adjoin of global ocean vector invariant
1350    o fix for checkpoint of thermodynamic seaice and bulk_force
1351    o Steph gchem various cleanups
1352    
1353    checkpoint 51h_pre
1354    o fixed some single quotes
1355    o modify gchem pkg to be more versatile
1356    o modifications to clean up dic pkg
1357    o add pkg/cfc
1358    
1359    checkpoint51g_post
1360    o provide links for ARPACK and ADM*TLM
1361    o start removing verification/vero/
1362    o update AD-related stuff
1363      (in particular some IF-statements in model/src/ routines)
1364    o adding to verification/global_ocean.90x40x15/ adjoint of
1365      vector invariant setup
1366    
1367    checkpoint51f_post
1368    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1369    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1370      of tracer Green's fucntions for ocean inversion project.
1371    
1372    checkpoint51f_pre
1373    o Added on-the-fly spatial interpolation capability
1374        "USE_EXF_INTERPOLATION" to pkg/exf.
1375      - This is a temporary Cartesian-grid hack until
1376        the super-duper ESMF coupler becomes available.
1377      - See verification/global_with_exf/README for usage example.
1378      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1379        flags and modified pkg/seaice accordingly.
1380    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1381        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1382        non-local transport term.
1383    
1384    checkpoint51e_post
1385    o pkg/mom_vecinv:
1386      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1387      - add time-ave diagnostic of vorticity advection.
1388    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1389    o atmospheric geopotential: - include water vapor effect;
1390                                - use p^kappa in p* scaling.
1391    o land pkg: read initial state from files.
1392    o AIM : add stratospheric drag in the upper level
1393    
1394    checkpoint51d_post
1395    o change function ILNBLNK (=> last non-blank char.) to return zero
1396      (instead of the string length) when the string. char is empty
1397    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1398    o modif's to restore TAMC compatibility
1399      - avoid "_d" constructs in PARAMETER declarations
1400      - avoid interrupting lines by comment lines
1401    o Use cluster local disks for purely local I/O
1402      vs. globally visible disks needed for ctrl stuff
1403      (merged from ecco-branch)
1404      - new active_file_loc... and mdsio_..._loc routines
1405      - affected packages: autodiff, ctrl, grdchk, mdsio
1406    
1407    checkpoint51c_post
1408    o introducing integer flag debugLevel
1409      - debLevZero: suppress all output
1410      - debLevA: standard
1411      - debLevB: equivalent to current debugMode=.TRUE.
1412    o introducing pathname variable mdsioLocalDir for mdsio
1413      that can be specified at runtime
1414      (relevant for cluster I/O to local disk)
1415    `
1416    >>>checkpoint51b_post
1417    adjoint of ptracers
1418    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1419    o extended state in checkpoint_lev?, etc.
1420    o alternative ctrl/cost with tr1 or ptracer
1421    o new comlev1_bibj_ptracers
1422    o new ptracers.flow
1423    o made ptracers_forcing same as external_forcing_s
1424    o added verification for adjoint with ptracers
1425      - adm. grdchk fail so far
1426      - tlm. grdchk OK
1427      - checked tapelev/comlev recomputations: OK
1428    <<<checkpoint51b_pre
1429    
1430    checkpoint51a_post
1431    o added code for biogeochemistry package
1432      - new pkgs: dic, gchem
1433      - new subroutine in ptracers
1434    o modify code for biogeo packages
1435      - in model/src and pkg/ptracers
1436    
1437    checkpoint51
1438    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1439      - autodiff, ctrl, exf, grdchk, seaice
1440      kept separate packages
1441      - cost, ecco, obcs
1442    o updating verification/internal_wave, verification/lab_sea
1443      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1444    
1445    checkpoint50i_post
1446    o Preparing next differentiable checkpoint and sync
1447      of MAIN vs. ecco-branch
1448      - 1st step: this one is differentiable
1449      - 2nd step: next(! not this) checkpoint will have updated packages
1450                  from ecco-branch)
1451    
1452    checkpoint50h_post
1453    o new package "land": provide surface BC for AIM.
1454    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1455    o AIM: use true log-P extrapolation for near surface temp (= as in
1456        F.Molteni paper) ; update aim.5l_cs output.
1457    o New variable in PARM03 for more flexible pickups
1458    o somewhat cleaned package initialisation sequence for
1459      ctrl/ cost/ ecco/ in packages_... routines
1460    
1461    checkpoint50g_post
1462    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1463      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1464      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1465        made the default because of faster convergence than ADI
1466    
1467    checkpoint50f_post
1468    o exf totally restructured
1469      - replaced all exf_set_ routines by one generic exf_set_gen.F
1470        and made sure it's still differentiable
1471      - split exf_getffields.F into new exf_bulkformulae.F
1472      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1473      - updated adjoint/makefile and relevant verif. accordingly
1474    
1475    checkpoint50f_pre
1476     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1477          + change Evap over land. (update aim.5l_cs output)
1478     o added missing .cvsignores and made uniform across expts
1479     o changed configuration of tidal_basin_2d expt
1480     o added pkg/debug functions for tracing code in fatal crashes
1481     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1482     o new fn in pkg/monitor to stop model if solution grows too big
1483     o removed lots of single quotes from comments
1484    
1485    checkpoint50e_post
1486    o make KPP work with PTRACERS
1487     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1488       nearly a copy of kpp_transport_s
1489     - there is no analogue to SurfaceTendencyS, so I have to use
1490       gPtr(of the surface layer) instead
1491    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1492    checkpoint50e_pre
1493    
1494    checkpoint50d_post
1495    o change kpp output from multiple-record state files to single-record state
1496      files analogous to write_state.F
1497    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1498      analogous to the cg2d-related output.
1499    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1500      so that writing to internal file fn (with length 512) fails.
1501    checkpoint50d_pre
1502    
1503    checkpoint50c_post
1504    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1505    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1506    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1507    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1508    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1509    
1510    checkpoint50c_pre
1511    Merging from release1_p13:
1512    o bug fix for pkg/seaice dynamic solver
1513    o Added SEAICE_initialHEFF to pkg/seaice
1514    
1515    checkpoint50b_post
1516    o store u*,v* in gU,V instead of in guNm1,gvNm1
1517    o in order to put the momForcing out of the Adams-Bashforth:
1518      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1519      to timestep.F
1520    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1521    o re-generate output for highly sensitive test-exp:
1522       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1523    
1524    checkpoint50b_pre
1525    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1526    o corrected CPP option mismatch in exf_Bulk... functions for case
1527      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1528    
1529    checkpoint50a_post
1530    o Bug fix for merging between c50 and KPP.
1531      ikey was passed from thermodynamics to kpp_calc via
1532      common block rather than being recomputed in kpp_calc,
1533      in contradiction with new key itdkey.
1534      New key ikppkey created, and tamc.h headers updated.
1535    
1536    checkpoint50
1537    - 2nd step of merge with ecco-branch:
1538      merge changes in ecco-branch back into main trunk
1539    - bug fix in find_alpha
1540    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1541    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1542    - merged some sliced AD support routines
1543    
1544    checkpoint49
1545    merged from ecco-branch:
1546    o exf:
1547      - Enable initialisation of forcing fields to constant
1548        (runtime) values.
1549      - in exf_getffields.F
1550        Reduce i-/j-loop to interior domain, discarding overlaps.
1551        That also fixes wrong TAF-key computations for key_1, key_2
1552        with bulf formulae.
1553      - exf_init.F modify #ifdef for exf_init_evap
1554      - exf_getffieldrec.F, ctrl_getrec.F
1555        The following INT-usages are not safe:
1556          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1557          fldcount = int(fldsecs/fldperiod) + 1
1558        and were modified.
1559    o autodiff: checkpoint_lev...
1560      - updated storing for bulk formulae (some arrays were missing)
1561      - added state for seaice package
1562      - synchronized with main branch
1563    o DIVA:
1564      Modif.s in
1565      - the_main_loop.F
1566      - the_model_main.F
1567      and added cost_final_restore.F cost_final_store.F
1568      o With these changes, it is possible to fully separate
1569        the first forward run to compute the cost function (mdthe_main_loop)
1570        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1571        into separate model executions.
1572        This enables better tuning of DIVA to given queue sizes.
1573      o Loss of cost function value in consecutive DIVA runs is
1574        fixed by storing to 'costfinal' file.
1575      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1576        beginning/end of adjoint integration is accounted for.
1577      The current changes apply to TAF-1.4.26.
1578      TAF has one remaining bug, requiring one manual change
1579      (see MITgcm manual).
1580    o cal: synchronized between MAIN and ecco-branch
1581    
1582    checkpoint48i_post
1583    o Changes to restore differentiability of code w.r.t. previous tag
1584      (mostly adding new routines to make list and replacing
1585      pressure by totPhiHyd).
1586    o Updated and merged grdchk package
1587      - has both ADM and TLM checks
1588      - works for single- and multi-proc.
1589      - output cleaned
1590      - worked successfully for parallel DIVA
1591    o genmake:
1592      - Adding -platform=SP4
1593      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1594    o Modif. for DIVA:
1595      ctrl_unpack should not be called in intermediate DIVA interval.
1596      (similar thing would apply for active files such as
1597      tbar, sbar, psbar, which should not be reinitialised;
1598      only relevant for ecco-branch)
1599    
1600    checkpoint48h_post
1601    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1602    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1603    o Added SEAICE_initialHEFF to pkg/seaice
1604    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1605    
1606    checkpoint48g_post
1607    --- EOS:
1608    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1609      store total Potential in totPhyHyd for diagnostics & EOS.
1610    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1611    --- Pressure/geopotential gradient:
1612    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1613    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1614      ( changes results of global_ocean_pressure )
1615    o NLFS + z-coord.: add eta*Rho' contribution.
1616    o accurate phiHyd when using interface-W at the middle between 2 centers
1617     ( changes results of ideal_2D_oce )
1618    o includes r* 2nd term in potential gradient.
1619    
1620    checkpoint48f_post
1621    Merging from release1_p12:
1622    o Modifications for using pkg/exf with pkg/seaice
1623      - improved description of the various forcing configurations
1624      - added basic radiation bulk formulae to pkg/exf
1625      - units/sign fix for evap computation in exf_getffields.F
1626      - updated verification/global_with_exf/results/output.txt
1627    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1628      (SBO) core products, including oceanic mass, center-of-mass,
1629      angular, and bottom pressure (see pkg/sbo/README.sbo).
1630    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1631      to avoid negative values in shallow regions.
1632      - updated verification/natl_box/results/output.txt
1633      - updated verification/lab_sea/results/output.txt
1634    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1635    o Added useSingleCpuIO option (see PARAMS.h).
1636    o Updated useSingleCpuIO option in mdsio_writefield.F to
1637      work with multi-field files, e.g., for single-file pickup.
1638    o pkg/seaice:
1639      - bug fix in growth.F: QNET for no shortwave case
1640      - added HeffFile for specifying initial sea-ice thickness
1641      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1642    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1643      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1644    o pkg/seaice:
1645      - adjoint-friendly modifications
1646      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1647    
1648    checkpoint48e_post
1649    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1650    o dynamics: change definition of computational domain & adapt mom_fluxform
1651      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1652    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1653        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1654        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1655        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1656        inverted_barometer solid-body.cs-32x32x1
1657      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1658    
1659    checkpoint48d_post
1660    o in preparation for r*:
1661     a) use pre-computed gradient of hydrostatic potential:
1662        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1663     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1664        => affects results of glob_oce_pressure (different truncation error)  
1665      update output.txt of ideal_2D_oce & global_ocean_pressure
1666    
1667    checkpoint48d_pre
1668    o in preparation for r*:
1669      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1670      pass the 2 comp. of the grad. as arguments to momentum S/R.
1671      but for the moment, only used if it does not change the results.
1672    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1673    
1674    checkpoint48c_post
1675    Modifications in treatment of initial flux forcing controls
1676    to avoid extra storing of flux fields.
1677    
1678    checkpoint48c_pre
1679    o Added tidal_basin_2d experiment (currently 1D!)
1680    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1681    
1682    checkpoint48b_post
1683    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1684     (modification to pressure gradient not yet implemented)
1685    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1686      (for U & V) that are used for vertical advection of momentum.
1687    
1688    checkpoint48a_post
1689    o In preparation for r*, use temp. array to compute vertical transport
1690       in flux-form momentum pkg. => change results of few test-exp.
1691      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1692                        lab_sea, natl_box & plume_on_slope
1693    
1694    checkpoint48
1695    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1696    
1697    checkpoint47j_post
1698    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1699    o moved adexch from forward_step to addummy_in_stepping
1700    o added exch in ctrl_map_...
1701    o aveFreq.=0. at end of cost_final to avoid overwrite in
1702      reverse checkpointing loop
1703    o Yet more changes in gmredi:
1704      * adgmredi_calc_tensor
1705        avoiding all recomputation of gmredi_slope_limit
1706      * adgmredi_x/y/rtransport
1707        added flag for excessive storing to avoid recomp. of
1708        u/v/rtans, dTdx/y/z
1709        -> this is not really necessary and very memory-consuming
1710      * adgmredi_slope_psi:
1711        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1712      * gmredi_slope_limit
1713        re-activated full calculation of taperfct for case 'ac02'
1714    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1715    
1716    checkpoint47i_post
1717    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1718    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1719      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1720    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1721    o gmredi: fix few bugs.
1722    
1723    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1724    This will be a good checkpoint to plug into the ecco-branch.
1725    o few modif.'s to get latest version adjointed
1726      (mainly kick out code in ini_linear_phisurf)
1727    o modif's to run adjoint with exactConserv
1728    o case GM_BOLUS_ADVEC should be cleaned
1729      S/R gmredi_slope_psi should be cleaned
1730    o verification/carbon now has exactConserv=.TRUE.
1731    
1732    checkpoint47g_post
1733    o time-average AIM output: becomes independent from statvars time-average
1734      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1735    o After TAF bug fix:
1736      Tested adjoint of gmredi package.
1737      Tests were done with checkpoint47 rather than with latest
1738      checkpoint47f_post since the latter is broken for the adjoint
1739      verification/carbon/ contains both ADM and TLM gradient checks.
1740    Here they are, before they get changed/lost/stolen.
1741    Mostly modif.'s to fix numerical sensitivities.
1742    Gradient checks OK for
1743    - GM_taper_scheme:
1744      * clipping
1745      * ac02
1746      * linear
1747      * glw91
1748      * dm95
1749      * ldd97
1750    - GMREDI_OPTIONS:
1751      * GM_VISBECK_VARIABLE_K
1752      * GM_NON_UNITY_DIAGONAL
1753      * GM_EXTRA_DIAGONAL
1754      * GM_BOLUS_ADVEC
1755    in conjunction with data.gmredi parameters to be checked in
1756    in a few minutes under verification/carbon/code/
1757    
1758    checkpoint47f_post
1759    Merging from release1_p10:
1760    o modifications for using pkg/exf with pkg/seaice
1761      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1762        and SEAICE_EXTERNAL_FLUXES
1763      - pkg/exf CPP options EXF_READ_EVAP and
1764        EXF_NO_BULK_COMPUTATIONS
1765      - usage examples are Experiments 8 and 9 in
1766        verification/lab_sea/README
1767      - verification/lab_sea default experiment now uses
1768        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1769    
1770    checkpoint47e_post
1771    o created a tag prior to creating a branch
1772    
1773    checkpoint47d_post
1774    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1775      at the bottom boundary had an erroneous half slip boundary condition
1776    o added bottom drag and no slip boundary condition capabilities to
1777      oceanic pressure coordinates code
1778    o added new verification experiment global_ocean_pressure, this experiment is
1779      also described in the tutorial section of the manual
1780    checkpoint47d_pre
1781    
1782    checkpoint47c_post
1783    o Added a verification experiment for a global cubed-sphere ocean run
1784      -  verification/global_ocean.cubed32x32x30
1785      -  uses pkg/therm_seaice and pkg/bulk_forcing
1786    
1787    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1788    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1789      when using P-coordinate; only implemented for atmospheric config.
1790    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1791      NOTES: requires option NONLIN_FRSURF to be "#define".
1792    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1793    
1794    checkpoint47b_post
1795    Merging from release1_p9:
1796    o pkg/seaice
1797      - removed GOTO's and added taf directives
1798      - double precision constants to reduce the g77 (Linux)
1799        to F77 (SGI) differences reported in release1_p8
1800    o tools/genmake
1801      - added SGI options
1802    o verification/testscript
1803      - updated to that of checkpoint47a_post
1804    o verification/global_ocean.90x40x15/input/eedata
1805      - modified for SGI f77 compatibility
1806    o verification/lab_sea
1807      - added description of sea-ice model
1808      - added missing matlab routines
1809      - added test of thermodynamics parallelization
1810    
1811    checkpoint47a_post
1812    o new pkg: aim_v23
1813     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1814       for now, keep the same surface forcing as before.
1815     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1816     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1817     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1818    o add diagnostic of surface correction term in monitor output
1819    
1820    o bulk_force and therm_seaice
1821    - Two packages:  bulk_force (Bulk forcing)
1822      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1823    - Earlier integration from Stephaine Dutkiewicz
1824      and Patrick Heimbach.
1825    - Two ifdef statements for compile time,
1826       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1827    
1828    checkpoint47
1829    differentiable version of checkpoint46n_post
1830    o bug fix in quasihydrostaticterms
1831    o * "clean" adjoint code (in terms of extensive recomputations)
1832        can now be obtained for all GMREDI options (i.e. for
1833        - GM_VISBECK_VARIABLE_K
1834        - GM_NON_UNITY_DIAGONAL
1835        - GM_EXTRA_DIAGONAL
1836        - GM_BOLUS_ADVEC )
1837      * However, wrong gradient check problem remains unsolved.
1838      * New CPP options have been introduced for different
1839        tapering schemes
1840    o external_fields_load now part of differentiation list
1841    o pressure needs multiple storing;
1842      would be nice to have store_pressure at beginning or
1843      end of forward_step, e.g. by having phiHyd global (5-dim.)
1844      (NB: pressure is needed for certain cases in find_rho,
1845      which is also invoked through convective_adjustment).
1846    o recomputations in find_rho for cases
1847     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1848    o #define ATMOSPHERIC_LOADING should be differentiable
1849    o ini_forcing shifted to begining of initialise_varia
1850    o Incorporating QNVS line search routines into MITgcm
1851      (this is separate code, and therefore not under pkg)
1852      lsopt/, optim/
1853    o Updated verification/carbon/
1854      - #define GM_VISBECK_VARIABLE_K
1855      - GM_taper_scheme    = 'ldd97'    
1856    
1857    checkpoint46n_post
1858    Merging from release1_p8:
1859    o verification/natl_box:
1860      updating new external_fields_load routine
1861    o New package: pkg/seaice
1862      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1863      The sea-ice code is based on Hibler (1979-1980).
1864      Two sea-ice dynamic solvers, ADI and LSR, are included.
1865      In addition to computing prognostic sea-ice variables and diagnosing
1866      the forcing/external data fields that drive the ocean model,
1867      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1868      The implied surface heat flux is then stored in variable
1869      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1870      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1871      non-local transport term.  Because this call precedes model
1872      thermodynamics, temperature under sea-ice may not be "exactly" at
1873      the freezing point by the time theta is dumped or time-averaged.
1874      N.B.: fairly large differences in accuracy occur across
1875            different platforms/compilers; comparison between
1876            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1877            generated output gives:
1878       T           S           U           V
1879      C D M    c        m  s        m  s        m  s        m  s
1880      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1881      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1882      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1883    
1884      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1885    o GAD:
1886      - generated new common blocks to account for call of
1887        same gad routines with differing traceridentities
1888        (needed to modify tracerIdentity indices in GAD.h)
1889      - generated separate common blocks for case useCubedSphereExchange
1890        (Department of Futurology)
1891      - parameter lists to gmredi_?transport: added tracerIdentity
1892      - added new key indices to tamc.h
1893    o external_fields_load:
1894      - added this routine to TAF list
1895      - needed to make some common blocks global and additional storing
1896        along the same lines as exf package (checkpoint_lev?_directives.h)
1897    o exf:
1898      updated external forcing package
1899      - bug fixes carried over from ecco-branch
1900        (missing OBCS_OPTIONS.h in two routines)
1901      - enable easy to use "no forcing".
1902      - added exf I/O for atmospheric loading
1903      - added exf I/O for runoff data
1904      - transfered scaling between exf <-> MITgcm to exf namelist
1905    o Adding new verification experiment global_with_exf.
1906      This verification experiment is almost identical to the
1907      global_ocean.90x40x15 experiment, except that it uses
1908      the exf (and cal) package instead of the
1909      external_fields_load routine (cf README file).
1910    
1911    checkpoint46m_post
1912    o modified testscript to return -- when there are no lines of "%MON" output
1913    o added new flag "quasiHydrostatic" for QH mode
1914      and new routine quasihydrostaticterms()
1915    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1916      New routine: mom_u_coriolis_nh()
1917    o fixed sign of non-hydrostatic metric terms in u and v equations.
1918      Depend on correct sign of gravitySign.
1919    o added work.pc* to .cvsignore in aim directories using ifc
1920    o introduced flag for controllin non-hydrostatic metric terms
1921    o removed gravitySign from PARM04
1922    o switched to g77/ifc from pgf77 in aim experiments
1923    
1924    checkpoint46l_post
1925    o made convective adjustment work with pressure coordinates:
1926     - changed the direction of k-loop in convective_adjustment.F for the
1927       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1928     - adjusted the reference pressure k-index in convective_adjustment.F
1929     - adjusted the convection condition in convect.F (in analogy to
1930       calc_ivdc.F)
1931     - convective_adjustment no longer computes anything on the halos
1932     - removed the warnings about negative salinity from find_rho.F and
1933       find_alpha.F; instead the new routine look_for_neg_salinity, called
1934       at the beginning of find_rho, find_alpha, and find_beta, does a
1935       check of the entire slice, if CPP-option
1936       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1937    checkpoint46l_pre
1938    
1939    checkpoint46k_post
1940    o fixed the verification/global_ocean.90x40x15 experiment:
1941     - new bathymetry (the world according to A., JMC, and M.)
1942     - new initial fields and forcing fields (*.bin files)
1943     - new POLY3.COEFFS (for the next release one should switch to a full
1944       equation of state: JMD95P or MDJWF)
1945     - fixed several errors and redundancies in the data file
1946     - experiment uses looped cells
1947     - added matlab directory with diagnostic scripts for plotting of output
1948    
1949    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1950     - read AIM physics parameters from a file (data.aimphys)
1951     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1952    
1953    checkpoint46j_post
1954    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1955    o move wVel computation at the end of the time step, in S/R integr_continuity
1956    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1957    o update timeave pkg for wVel diagnostic.
1958    checkpoint46j_pre
1959    
1960    checkpoint46i_post
1961    o Clean up AIM package (and keep the results unchanged):
1962      include CPP_OPTION and use IMPLICT NONE in all routines ;
1963      declare all the variables _RL ; use _d 0 for all numerical constants.
1964      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1965    
1966    checkpoint46h_post
1967    o cleaned up the use of rhoNil and rhoConst.
1968      - rhoNil should only appear in the LINEAR equation of state, everywhere
1969        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1970        and the dynamical equations are all divided by rhoConst
1971    o introduced new parameter rhoConstFresh, a reference density of fresh
1972      water, to remove the fresh water flux's dependence on rhoNil. The default
1973      value is 999.8 kg/m^3
1974    o cleanup up external_forcing.F and external_forcing_surf.F
1975      - can now be used by both OCEANIC and OCEANICP
1976    checkpoint46h_pre
1977    
1978     Added code to convert surface volume flux (fresh water) into
1979     a mass flux when using P coordinates in the ocean (OCEANICP).
1980     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1981    
1982    checkpoint46g_post
1983    o Include a new diagnostic variable phiHydLow for the ocean model
1984      - in z-coordinates, it is the bottom pressure anomaly
1985      - in p-coordinates, it is the sea surface elevation
1986      - in both cases, these variable have global drift, reflecting the mass
1987        drift in z-coordinates and the volume drift in p-coordinates
1988      - included time averaging for phiHydLow, be aware of the drift!
1989    o depth-dependent computation of Bo_surf for pressure coordinates
1990      in the ocean (buoyancyRelation='OCEANICP')
1991      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1992        Theta, Salinity, and Pressure in the parameter list. This routine is
1993        presently contained in find_rho.F. This routine does not give the
1994        correct density for 'POLY3', which would be a z-dependent reference
1995        density.
1996    o cleaned up find_rho
1997      - removed obsolete 'eqn' from the parameter list.
1998    o added two new verification experiments: gop and goz
1999      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2000    checkpoint46g_pre
2001    
2002    checkpoint46f_post
2003    o Enable tangent linear (forward mode) gradient checks:
2004      - extended active file handling to g_... files
2005      - added TANGENT_SIMULATION to theSimulationMode
2006      - extended grdchk package accordingly
2007    o added tangent linear setup in verification/carbon/code_ftl
2008    o added adjoint setup in verification/front_relax/code_ad
2009    
2010    checkpoint46e_post
2011    o Added new equation of state -> MDJWF
2012      - EOS of McDougall et al., 2002, JAOT, submitted
2013      - caveat: the equation of state is only valid for a smaller (more
2014        realistic?) range of values than JMD95P/Z and UNESCO
2015      - added masks to the calculation of pressure in store_pressure
2016      - added more check values for density in check_eos (ini_eos.F), some of
2017        the old check values are out of the range of the MDJWF-eos, so don't
2018        expect perfect matches for those
2019    checkpoint46e_pre
2020    
2021    checkpoint46d_post
2022    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2023      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2024      case of pressure coordinates. eosType='JMD95Z' in
2025      combination with buoyancyRelation='OCEANICP' now causes an error.
2026    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2027      in find_alpha/beta.
2028    checkpoint46d_pre
2029    
2030    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2031      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2032    
2033    checkpoint46c_post
2034    o Changes necessary for ocean in p-coordinates
2035     -  Added new buoyancy relation = 'OCEANICP'
2036     -  Added new parameters = gravitySign (this used to be contained inside
2037        the factor dRdZ which I added when we first switched to R coordinates).
2038     X GM/Redi is not compatible (yet)
2039     X bottom drag and no-slip need to be debugged.
2040    checkpoint46c_pre
2041    
2042    checkpoint46b_post
2043    o Added new equation of state -> JMD95Z and JMD95P
2044      - EOS of Jackett and McDougall, 1995, JAOT
2045      - moved all EOS parameters into EOS.h
2046      - new routines ini_eos.F, store_pressure.F
2047    o Added UNESCO EOS, but not recommended because it requires
2048      in-situ temperature (see JMD95)
2049    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2050      unesco.f to be used with POLY3
2051    checkpoint46b_pre
2052    
2053    checkpoint46a_post
2054    o Added (atmospheric) pressure loading
2055      - new field in FFIELDS.h, etc...
2056      - new cpp flag ATMOSPHERIC_LOADING
2057    o Changed hFacC to _hFacC in calc_phi_hyd.F
2058    o Added SHORTWAVE_HEATING to some files for consistency
2059    checkpoint46a_pre
2060    
2061    checkpoint46
2062    further merges from release1_p5
2063    o new ctrl package
2064      - adopted from ECCO environment to enable optimization
2065      - added Eliassen Palm fluxes to controls
2066    o added Eliassen Palm flux controls to gradient check package
2067    o cost package
2068      - Compatible with new ctrl package
2069      - added Eliassen Palm cost hooks
2070      - modif's of existing cost functions
2071    o Adjoint-related bug fixes in kpp:
2072      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2073      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2074    o autodiff package
2075      - flow directives:
2076        + new for S/R do_the_model_io
2077        + enhanced for S/R checkpoint
2078        + new gmredi.flow
2079      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2080        disable adcommon.h/g_common.h by default.
2081      - fixed problem for adjoint of global_max
2082    o modified verification/carbon/
2083    o New setup for adjoint of global_ocean
2084    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2085    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2086    o incorporated hooks for sponge layer code (external_forcing.F)
2087    
2088    checkpoint45d_post
2089    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2090    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2091      (affects plume_on_slope "cg2d" output)
2092    o add new parameter deltaTfreesurf for free-surface time stepping
2093    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2094    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2095    o change phiMin in exp1 (to agree with documentation)
2096    o add new flags:
2097     - T,S forcing inside/outside Adams-Bashforth
2098     - turn off temp,salt advection and/or forcing
2099     - for each tracer, define internal flag for multiDimAdvection & A-B
2100    o monitor: change definition of KE to check conservation of Energy
2101    
2102    checkpoint45c_post
2103    o Removed f90 comments ("!")
2104    o Modified initialisations to enable exf package for MITgcm
2105      (without invoking ECCO_PACKAGE).
2106    o modifications to gradient check package (Martin Losch)
2107      - enable centered differences
2108      - modified format of standard output
2109    
2110    checkpoint45b_post
2111    o cleaned exchange calls in cg2d
2112    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2113    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2114      to configure barotropic setup (Martin Losch)
2115    o moved some initialisations within bi,bj loop in dynamics
2116      (TAF flow dependency)
2117    o in initialise_varia, moved call packages_init_variables
2118      before convective_adjustment_init
2119      (corresponding adjustment of TAF tape initialisation).
2120    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2121    
2122    checkpoint45a_post
2123    o compute Rho over the whole domain (extend iMin,jMin indices)
2124    o specific exchange for X-slice domain (case Ny=1)
2125    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2126    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2127    
2128    checkpoint44h_post = checkpoint45
2129    o Fix to restore differentiability:
2130      place at which packages_init_variables is called in
2131      initialise_varia is crucial for reverse control flow.
2132    o modifications in GMRedi to enable stable adjoint
2133      (corresponding modif's in thermodynamics, dynamics)
2134    o added missing hook for sponge layer code in external_forcing
2135    o modified test cost functions
2136    o storing in gad_advection (plus removal of write(0,*)!
2137    o missing headers TR1.h added in convective_adjustment routines
2138    o errorMessageUnit set non-equal zero in eeboot
2139      (conflict on some platforms, e.g. IBM SP3)
2140    o modified carbon verif.
2141    
2142    checkpoint44h_pre
2143    o vertical grid option: allow to put the Interface at the middle between
2144      2 cell-centers ; replace delZ in pkg/kpp by drF.
2145    o GM Advective form: Tracers are advected using the residual transport (=
2146      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2147    
2148  checkpoint44g_post  checkpoint44g_post
2149  o fix surface correction term in multiDimAdvection (affects plume_on_slope  o fix surface correction term in multiDimAdvection (affects plume_on_slope
2150    results) ; ifdef missing in thermodynamics.F    results) ; ifdef missing in thermodynamics.F

Legend:
Removed from v.1.66  
changed lines
  Added in v.1.574

  ViewVC Help
Powered by ViewVC 1.1.22