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revision 1.127 by adcroft, Thu Jan 30 18:35:42 2003 UTC revision 1.573 by mlosch, Fri Oct 14 12:45:43 2005 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
8      and sRef for convenience, handy, when you want to initialize
9      ptracers in a large domain with a constant non-zero value. Also,
10      untangle ptracers_init.F a little.
11    
12    checkpoint57v_post
13    o change dome exp. to use variable viscosity in side-drag terms.
14    o remove all the files from the cfc_offline test since they are now
15      incorporated into tutorial_cfc_offline which has been producing
16      identical results for a few days of testing
17    o add new parameter: sideDragFactor to enable half-slip-side BC
18      and change side-drag S/R to use viscosity from mom_calc_visc
19      (can switch back by setting sideDragFactor=0.); affects results at
20      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
21       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
22    o vorticity & strain are now computed without masking, to account for
23      no-slip-side BC in variable viscosity calculation ; mask is applied
24      anyway later on, before computing advection/coriolis terms.
25    o modify exp4 to test new obcs support for reading from external files
26      and for passive tracers
27    o fix behavior of ptracers_monitor when monitor output is written to a
28      netcdf-file; still not independent of monitor.F (writes in the same
29      file).
30    o change default value of tRef (put a uniform, meaningful value for ocean
31      & atmos) and initialize sRef (was missing, as Martin mentioned).
32    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
33      to be proportional to enstrophy dissipation length.  Thus,
34       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
35      This is now consistent with Smagorinsky and with the manual.
36    
37    checkpoint57u_post
38    o OBCS and PTRACERS: add open boundary support for passive tracers
39      - either use homogenous (pseudo) v.Neumann conditions or prescribe
40        OB-values from file; this is not different from the way theta and salinity
41        are treated
42      - however, Orlanski-radiation conditions are not supported, and the model
43        will stop if you use pTracers and Orlanski at the same time.
44      - beefed up the rountine obcs_external_fields_load: now only those open
45        boundary values are overwritten with values from files for which there
46        are really files, otherwise the OB-fields remain untouched. This makes
47        it possible to use different OBs at different ends of the domain (as
48        with EXF)
49    o reduce number of exch calls in shap_filt (s2).
50    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
51      truncation level) 4/5 MLAdjust test results (11&12 digits match).
52    
53    checkpoint57t_post
54    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
55    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
56      same truncation, independent of the face number: affects affects several
57      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
58    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
59      note that biharmonic viscosity + no-slip was not tested in any experiment.
60    o fix bug in non-linear free-surf side-drag ; generate new output for
61      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
62    o make mnc honor the writeBinaryPrec flag for most kinds of output
63    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
64    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
65      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
66    o add brackets in multi-terms sum to get same truncation, independent of
67      the face number (manage to get exactly same value of gU,gV at the cs-edge)
68      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
69    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
70      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
71      a maximum grid-scale Reynolds number.  Also, changes all length calculations
72      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
73      Suggested values of viscosity parameters found in mom_calc_visc.
74      Many new viscosity diagnostics available.
75    
76    checkpoint57s_post
77    o Add clearing-house for viscosity calculations, mom_calc_visc and
78      correct numerous bugs in LeithD and Smagorinsky discretizations.  
79      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
80      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
81      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
82      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
83      The Strain-Tension form is now called with useStrainTensonVisc=.true.
84      ViscAhStrain and viscAhTension are now retired.
85    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
86    o In response to JMC's bug report, genmake2 now ignores any soft-links
87      that it finds in the *current* directory when searching for files.
88      Soft-links found in any other source directories will still work as
89      they did before.
90    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
91      a C routine to unlimit the stack size
92    o mnc-ify pkg/aim snapshot vars
93    o mnc-ify pkg/land as requested by Daniel
94    o various changes to mnc including:
95      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
96      - output can now be grouped so that all files within a group
97          change the ITER portion of their names in lock-step together
98      - can now read ("global") PER-FACE (in addition to PER-TILE) files
99          and works with both EXCH1 and EXCH2 (but needs more testing)
100      - writing works for all verification test cases w/ g77 on Linux
101    
102    checkpoint57r_post
103    o make MNC variable initialization happen earlier
104    o add diagnostics for (almost) each term of the momentum Eq.
105    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
106    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
107    o remove MINIMAL_TAVE_OUTPUT option ;
108      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
109    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
110      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
111    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
112    o add time-dependent SST, SSS control
113    o cost terms in ecco/ modularized (new cost_generic.F)
114    o cost_averages routines are modularized (new cost_averagesgeneric.F)
115    o new infrastructure for seaice model vs. obs misfits in seaice/
116      * driver from the_main_loop.F is seaice_cost_driver.F
117      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
118      * gradient check in Exp. 6a of natl_box_adjoint/
119    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
120      (see README file)
121    
122    checkpoint57q_post
123    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
124    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
125      - bug was reported by Jean-Michel and Ian Fenty
126    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
127      update exp. cpl_aim+ocn output.
128    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
129      Needed for high-res. runs with large global files
130      to be able to limit tapelev size
131    o Changed some tests for adjoint:
132      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
133      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
134      * global_ocean.90x40x15/ back to default 3-level checkpointing
135    o Modifications to enable scripted COMMON to MODULE conversion
136      * verification/OpenAD/code/ has necessary scripts and description;
137      * converts, compiles and runs successfully;
138    
139    checkpoint57p_post
140    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
141    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
142      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
143    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
144    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
145      (was already the case for dissipation with mom_vecinv,
146       and also the case for grad.PhiHyd when staggered-timeStep)
147      This will allow to put dissipation out-off the AB time-stepping.
148     Unfortunately, affects truncation error. Update output of exp. that "fails"
149      (cg2d matching number) and leave the others for later: front_relax(10),
150      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
151      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
152    
153    checkpoint57o_post
154    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
155      (2) its ready to be documented during the 20050801 DocFest
156    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
157      for ideal_2D_oce and lab_sea on linux_ia32_g77
158    o set to #undef CTRL_SET_OLD_MAXCVARS_30
159      in global1x1_tot/code_seaice_adj to access indices 32, 33
160      (worth another tag)
161    
162    checkpoint57n_post
163    o adding precip control xx_precip 32
164    o adding swflux control xx_swflux 33
165    o Replacing 10 forcing penalty cost routines by 1 generic.
166    o Implementing partitioning in time-mean and variable adjustment
167      for atmos. state.
168    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
169    o in natl_box_adjoint:
170      * updated exp 1 to 10
171        (but does not have time-mean vs. variable split results yet)
172    o updated global1x1/*_seaice_adj/
173      to incorporate latest changes
174    o enable useSingleCpuIO for mdsio vector routines
175      (applies in particular to tapelev I/O)
176    o removed inefficient K-loop in all active_file*control*.F
177    
178    checkpoint57m_post
179    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
180      and advect_cs (use EXCH-2 and standard cs-32 grid files).
181    o pkg/exch2: filling of face-corner halo regions is optional
182      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
183    
184    checkpoint57l_post
185     tag before updating tutorials (pre-release-2)
186    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
187       for output and interpolation of input fields onto model grid)
188    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
189       Affects results of exp. rotating_tank ; update output.txt.
190    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
191          and taking the square quantity and/or using a fraction-weight field.
192    o fix aim_diagnostics_init.F mate numbers.
193    o add mnc output capability to diagnostics/diagstat and update
194      our cvsignore files for the ACSII output generated
195    
196    checkpoint57k_post
197    o lab_sea now uses diagnostics package and provides a suite of
198      new EXF diagnostics output.
199    
200    checkpoint57j_post
201    o exf
202      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
203        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
204        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
205      * extended diagnostics output
206        - now includes all EXF variables
207        - hs, hl moved to common block
208        - separate S/R for diagnostics, called after ctrl vector is added
209        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
210        - EXFqnet contains true Qnet (i.e. includes qsw)
211      * updated verif. lab_sea, global_with_exf
212      * Rearranging hflux (exf_mapfields -> exf_getforcing)
213        to ensure that diagnostics sees a true EXFqnet
214    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
215    o diagnostics pkg: change pointers so that 1 diagnostic can be used
216      several times with different frequencies.
217    o mnc-ify the thsice package as requested by Daniel Enderton
218      - the monitor--MNC output needs work
219      - many attributes need to be added (most are currently blank)
220    o mnc-ify theaim_v23 package as requested by Daniel Enderton
221      - many attributes need to be added (most are currently blank)
222    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
223    o add Sadourny like discretization to the 4th.O vorticity advection scheme
224    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
225      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
226         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
227    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
228     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
229    
230    checkpoint57i_post
231    o Diagnostics package was changed: diagnostic allocation is now deactivated
232      by setting an empty file name in the namelist (used to be by setting 0 frequency)
233    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
234      add 1rst Order upwind vertical Shear.
235    o add a quick fix for A/B checkpointing in OFFLINE mode
236    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
237      end-run around the C/Fortran linking horror in eesup/src/timers.F
238    o added pkg/runclock: allows user to terminate run based on wall clock
239    o added non-hydrostatic scaling parameter: nh_am2
240    o pkg/my82: futile attempt to make results compiler-independent by adding
241      some "_d 0", etc. no effect.
242    o for mnc output, fill the 'T' coordinate var with myTime and create a
243      separate 'iter' variable for iteration count
244    o pkg/diagnostics:
245      add new capability: output of Global/Regional & per-level statistics ;
246      tested against monitor output (including land & thSIce) on various exp.
247    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
248    
249    checkpoint57h_done
250      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
251      data.diagnostics, data.gchem, data.ptracers) is done.
252    
253    o pkg/diagnostics: prepare for Global/Regional statistics.
254      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
255    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
256      and rename it: DIFFERENT_MULTIPLE
257    
258    checkpoint57h_post
259    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
260    o pkg/diagnostics: change output frequency, now in seconds (instead
261      of Nb of iterations). This requires to change data.diagnostics.
262    checkpoint57h_pre
263    
264    o in mnc, let the user create the output dir if both mnc_outdir_date
265      and mnc_outdir_num are false
266    o add fflags() to pkg/diagnostics which allows one to specify, on a
267      per-file basis, the file precision [default behavior is unchanged]
268    o added diagnostics to pkg/kpp, including computation of mixed layer
269      depth based on a temperature/density criterion
270    o updated verification/natl_box to test the new pkg/kpp diagnostics
271    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
272    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
273    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
274      not mnc -- this mistake was found by JMC and is now corrected
275    
276    checkpoint57g_post
277    o add Adams-Bashforth 3rd Order time stepping:
278      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
279      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
280    checkpoint57g_pre
281    
282    o make lambda[Theta,Salt]ClimRelax spatially varying
283      (default remains spatially uniform constant based on tau)
284    o added new control variables
285      * init. uVel, vVel, etanN
286      * lambda[Theta,Salt]ClimRelax
287    o separate masks used for ctrl_pack/unpack 'from write_grid' output
288      (suggested by G. Forget)
289    
290    checkpoint57f_post
291    o add parameter "baseTime" = model base time = time at iteration zero
292      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
293      account for baseTime shift
294    o move Coriolis arrays from PARAMS.h to GRID.h
295    checkpoint57f_pre
296    
297    o mnc-ifying the seaice package
298    o introduced an alternative length scale calculation for use in the limiting
299      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
300    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
301    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
302      as well as grad(vort3).  Made it compatible with both approximate form
303      for the cubed sphere and full form of these gradients.  Added flag
304      useFullLeith to select between approximate and full form.  
305    o add "d0" in getcon.F to reduce differences between compilers/platforms
306      update output.txt of exp. fizhi-gridalt-hs
307    o change port_rand funtion to allow to set the seed.
308    o fix obscure MNC bug involving conversion between reals and integers
309      - it caused no problems with certain (eg. gcc, ifc) compilers but the
310        new version is now more standards-compliant
311    o adjoint-related modifications
312      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
313      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
314      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
315    
316    checkpoint57e_post
317    o Adding eddy stress controls a la Ferreira et al.
318    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
319    
320    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
321      update output.txt of exp. fizhi-gridalt-hs
322    o add more "Z" dimensions and associated coordinate vars to MNC
323    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
324    o parameter calendarDumps: when set, approximate months (30-31 days) and years
325      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
326      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
327      months and years.  Requires pkg/cal.
328    o diagnostics: add pickup functionality
329      - off by default for backwards compatibility
330      - current version only uses MDSIO -- MNC will be added
331    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
332    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
333    
334    checkpoint57d_post
335    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
336    o modify verification/ideal_2D_oce so that it tests the creation of mnc
337      output from the diagnostics package
338    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
339    o make genmake2 more portable by using ".$FS" instead of ".f" for more
340      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
341    o add coordinate variables to the MNC output from the diagnostics package
342    o change MNC-flags default value: true when useMNC=TRUE
343    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
344      the ability (off by default) to read the grid information using MNC
345    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
346    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
347    o do snap-shot diagnostics at the middle of the time-interval (instead of
348      at the end).
349    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
350      new test for AIM with thSIce + slab-ocean
351    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
352    o move state variable diagnostics to the beginning of the time step ;
353      (note: still needs some work specially for snap-shot diagnostics)
354      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
355    
356    checkpoint57c_post
357    o Change testing option (-ieee) to get closer agreement between g77 & ifort
358    o generate new output.txt files on faulks with g77 & the new -ieee option
359    checkpoint57c_pre
360    
361    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
362      update output.txt of exp. global_ocean.90x40x15
363    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
364      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
365    o add saltFlux(+File) forcing capability with periodicExternalForcing
366    o allow to use pkg diagnostics for GM-Redi & ThSIce output
367    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
368    o improvements for the MNC output from DIAGNOSTICS:
369      - correct handling of the unlimitied dimension
370      - all dims now have associated coordinate variables
371      - variables located at U, V, and Corner ("Z") points are now written
372        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
373        *all* data points are output
374    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
375    o added pkg/seaice/seaice_monitor.F
376    o mdsio_readfield.F can now read files visible only to master MPI process.
377    o pkg/seaice: some test code for ice-modified ocean stress
378    o exf_getffields interpolation defaults to bilinear for all scalar forcing
379      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
380      spurious negative numbers for precipitation and humidity.  Will cause
381      some small numerical differences for integrations using pkg/exf/exf_interp.F.
382    o pkg/ctrl/
383      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
384        May be enabled via doPackDiag
385      *  introduce z-scaling of
386         + gradient (doZscalePack) and
387         + control (doZscaleUnpack)
388    o pkg/mdsio/
389      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
390      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
391    
392    checkpoint57b_post
393    o simplify options in diagnostics_fill arguments (remove weird combinations)
394    o fix MNC coordinate variables so that they now contain per-face index
395      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
396      general, EXCH2 grids are only aligned to a "local" coordinate system
397    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
398    o Implement instantaneous output within pkg diagnostics:
399      setting a negative frequency in data.diagnostics produces
400     "snap-shot" output (as opposed to time-average if freq > 0)
401    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
402      NOTE: change ptracer diagnostics name: use 2 characters to work with
403            more than 9 tracers. Add also diagnostics of advect & diffus flux.
404    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
405      becomes the coordinate variable for the 'T' dimension
406    o add CF-style coordinate variables to MNC
407      - just a first cut:  numbers are meaningless on the cubesphere and
408        missing along the T axis but otherwise it works!
409    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
410    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
411    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
412      this is based directly on what the model compute, so that the content of
413      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
414    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
415    o clean up build options files for SunOS, in particular
416      - remove -traditional from xmakedepend
417      - change -xarch=v9 to -xarch=native for f77
418      - restore use of make (not gmake)
419      - add CC=gcc if using g77
420    o changes per discussion of AM, JMC, & EH3 today:
421      - move redundant "grid" variables out of "state" -- in preparation of
422        creating proper CF-style coordinate variables and in recognition
423        that any/all grid variables can be easily copied (eg. w/NCO) from
424        the grid files into any of the other NetCDF files
425      - *always* output grid variables with MDSIO (this will eventually be
426        changed)
427      - output MNC grid file if useMNC is true
428    o every instance of _END_MASTER() has been found and replaced with
429      _END_MASTER( myThid ) in order to satisfy certain picky Sun
430      preprocessors
431    o re-arrange diagnostics pkg initialisation:
432     - allow each package to extend the available diagnostics list
433     - add some checking and fix small problems (multi-threaded, ...)
434     - new S/R diagnostics_fill (replace fill_diagnostics):
435       look through the short list of active diag. (instead of the long list)
436       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
437    
438    checkpoint57a_post
439    o this set of changes restores TAMC compatibility
440      tested for global_ocean.90x40x15 adjoint on trough
441      (what a pain)
442    
443    checkpoint57a_pre
444    o some modifs in tools/build_options for sunos
445    o call ctrl_pack for ctrl at end for optimcycle=0
446    
447    checkpoint57
448    o add horizontal bi-harmonic viscosity for vertical velocity
449      - new parameter viscA4W (defaults to viscA4)
450      - affects only non-hydrostatic code
451      - to be done: no-slip lateral boundary conditions
452    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
453    o implement Implicit Vertical advection for pTracers
454    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
455      (implemented also for implicit vertical diffusion & advection)
456    o OBCS: extend application of tracer open boundary conditions
457      to a strip beyond the boundary of width Olx/Oly
458    o add call monitor to TAF set of required calls (flow directives)
459      and include in natl_box_adjoint
460    o untangle a few ifdefs related to cost, ctrl, autodiff
461      untangel a few ALLOW_ECCO_OPTIMIZATION
462    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
463      (theta2, salt2 in ecco_cost_weights)
464    
465    checkpoint56c_post
466    o OBCS as control variables
467      - update ctrl_ad_diff.list, obcs_ad_diff.list
468      - remove balance of obcs controls from default
469      - fix index bug nobcs in ctrl_init
470      - fix dummy fields filen in ctrl_pack
471      - add dummy weights for obcs
472    o lsopt: comment out fort.94 output
473    o optim:
474      - remove unnecessary header files
475      - adjusted namelists
476      - add xerbla.F to Makefile
477    o exf:
478      - multiple modifications of exf_check_range
479      - unit change in exf_init_runoff from [m/year] to [m/s]
480    o mdsio:
481      - i/o-vector change debugLevel from debLevA to debLevB
482    
483    checkpoint56b_post
484    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
485      is called from DO_THE_MODEL_IO
486      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
487      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
488      - clean up PTRACERS_WRITE_TIMEAVE a little
489    o add another verification experiment that tests both the cfc-pkg and
490      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
491      reactive tendencies treated inline with regular timestepping
492    o testreport previously did a lousy job of comparing small numbers, so
493      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
494      implemented in the little c-progam tmp_cmpnum.c which is embedded in
495      testreport.
496    o ptracers_monitor: bug fix for MPI
497    
498    checkpoint56a_post
499    o GCHEM: finish reorganizating the package
500      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
501        (introduces another 3D-array for each passive tracer, but only if
502        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
503        gchemTendency is not needed because the timestep is done separately)
504      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
505      - GCHEM is now---more or less cleanly---separate from PTRACERS
506      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
507        so clear to me how that should be done in a general way.
508    o CFC: improve formatting of output in CFC_ATMOS
509    o PTRACERS:
510      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
511        that ALL experiments with ptracers enable can be checked. This makes
512        GCHEM_MONITOR obsolete.
513      - include a runtime parameter PTRACERS_monitorFreq that defaults to
514        monitorFreq
515      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
516    o add PTRACERS (PTR0[1-5]) to testreport output
517    o exf_check_range:
518      * default changed to .TRUE.
519      * will check values for niter0 if debLevA, every timestep if debLevB
520      * STOP in exf_check_range if 'out of range'
521      * range chosen generous to allow for potential extema
522      TBD: a version with stricter range
523           permitted range would be runtime parameters
524    o GMredi:
525      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
526      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
527      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
528    o GCHEM:
529      - move call to GCHEM_FORCING_SEP, so that it is now called before
530        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
531      - introduced a useGCHEM runtime flag and applied it everywhere.
532      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
533        this flag is now only visible within GCHEM-pkg routines.
534      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
535        be replaced by a 3D array that is computed before thermodynamics; for
536        this, the tracer ID iTracer had to be included into the parameter list
537        of ptracers_forcing
538      - set up forward_step to call gchem_forcing, that will replace
539        gchem_forcing_int in ptracers_forcing
540      - cleaning up
541    o small cleaning of exch2: remove files that are also in eesupp/src
542    
543    checkpoint56
544    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
545    o mnc: cleanup "full" files--fixes out-of-memory problem
546    o ECCO-GODAE
547      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
548      * fully merged and updated from SIO code
549        windstress sign change affects
550        - exf_inscal_[u/v]stress
551        - sign of xx_tau[u/v] adjustments
552        - signs in cost_scat
553      * ctrl_get_gen: avoid update of tau[u/v] for first few days
554      * natl_box_adjoint updated and compressed
555      * 2-level checkpoint switch added
556        (tested in EXP. 1 of natl_box_adjoint)
557      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
558    o SVD
559      * first complete, non-hacked version for SVD calculations
560      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
561        performed via direct access files admtlm_vector.it????
562        (via ctrl_[un]pack)
563      * optimcycle is used for ARPACK iteration counter
564        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
565      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
566        and add linear transforms where necessary
567      * controls are initial/final SST, SSS (can be extended; need to check
568        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
569    o mdsio: filename info to both stderr, stdout
570    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
571      from sign change
572    
573    checkpoint55j_post
574    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
575      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
576    o add consistent build directories and .cvsignore files to verification
577    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
578    o make all subroutines 30 or less characters in length for certain older
579      compilers to work (a thorough search only turns up two routines in
580      pkg/ptracers)
581    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
582      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
583    
584    checkpoint55i_post
585    o change arrays for total vertical diffusivity (2.D if explicit,
586      3.D if implicit) ; each ptracer uses its own background value.
587    o added mnc/NetCDF output capability to ocn_compon_interf
588      - added bits to verification/cpl_aim+ocn so that it can run on
589        ITRDA and other clusters without the mpirun "-wd" option
590    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
591      configuration
592    o give MNC the ability to create additional files rather than
593      exceeding a specified file size limit "MNC_MAX_FILESIZE"
594      - the default is just less than 2GB which is a practical limit
595        on many systems
596    o Compute the non-local term using either KPP vertical diffusivity (=default)
597       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
598    
599    checkpoint55h_post
600    o add verification test "vermix"
601    o remove all the *_ioinc flags and replace with the single global
602      outputTypesInclusive flag
603    o allow to set a vertical profile of vertical diffusivity for T & S
604    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
605    o useMNC moved from data.mnc to data.pkg
606    
607    checkpoint55g_post
608    o Renaming carbon AD experiments to comply with testreport conventions
609    o Updating adjoint of Held-Suarez hs94.1x64x5
610    o Fixing directives for non-ECCO forward_step, after ECCO directives
611      have been fixed to avoid recomp. of do_oceanic_phys
612      Works well for global_ocean.90x40x15,
613      but recomp. issue remains for carbon
614    o Updating adjoint output for natl_box_adjoint after
615      pkg/ecco has been modified (see taga c55d_post)
616    
617    checkpoint55f_post
618    o rename to timeave_init_fixed
619    
620    checkpoint55e_post
621    o some delicate re-shuffle of store directives to avoid one
622      extra call of do_oceanic_physics
623      affects ecco_the_main_loop.F, do_oceanic_physics.F
624      checkpoint_lev1_directives.h
625    o NB: this may break global_ocean adjoint temporarily,
626      but it is clear how to fix it. Will do later, need this now.
627    
628    checkpoint55d_post
629    o ECCO specific cost function terms (up-to-date with 1x1 runs)
630    o ecco_cost_weights is modified to 1x1 runs
631    o modifs to allow observations to be read in as
632      single file or yearly files
633    o enable to read exf forcing fields as either
634      single file or yearly files (flag useExfYearlyFields)
635    checkpoint55d_pre
636    
637    o switch between 2-level and 3-level checkpointing
638    o add ability of MNC to write local and "partial" (eg. 2D slices where
639      the full 3D field is never actually stored) arrays to NetCDF files
640      with the correct (that is, the complete multi-dimensional) set of
641      array indicies
642      - used in mom_vecinv() to write the diagFreq output
643      - tested (demonstrated) in verification/aim.5l_cs
644    o further mnc-ification
645      - add verification/lab_sea to the list with mnc setups
646      - fix undefined mnc v-names in cd_code
647      - add kpp to mnc output (both snapshot and timeave)
648    o non-hydrostatic code
649      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
650        in calc_gw.F
651      - defaults to viscAh
652      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
653        friction or Leith) in non-hydrostatic mode, as long as there is
654        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
655    o pkg/cost
656      extend simple cost functions to treat time mean quantities
657      (T,U,V) via cost_accumulate_state from cost_tile
658    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
659        be 2 times larger than the minimum size the advection scheme requires.
660        now get a perfect conservation of salt in advect_cs test-exp (updated)
661    o GGL90 (Gaspar's TKE mixed layer)
662      - add horizontal diffusion of TKE, requires exchanges in
663        do_fields_blocking_exchanges, horizontal diffusivity is zero by
664        default. In OPA there is no horizontal diffusion of TKE but the
665        mixing coefficients are computed from a horizontal average of TKE of
666        6 points or so. I think that diffusion has a little more physical
667        justification.
668      - clean up ggl90_calc in the hope of reducing memory usage (this hope
669        was in vain)
670      - mask tke-variable in ggl90_init
671    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
672    o fix biharmonic diffusion on CS-grid.
673    o more obcs stuff
674      - added obcs_external_fields_load as an alternative to the EXF-pkg option
675        for reading boundary values. This routine is called from
676        obcs_prescribe_read
677      - updated obcs_check
678      - changed sponge layer relaxation parameter units for days to seconds
679      - turned off sponge layer by default
680      - changed argument list of OBCS_CALC to myTime+deltaTclock
681      - fixed about 35 bugs in obcs_external_fields_load
682    
683    checkpoint55c_post
684    o obcs stuff
685      - new runtime flags useOBCSprescribe, useOBCSbalance
686      - re-arranged obcs_calc
687      - moved exf_getobcs to obcs_prescibe_read
688        obcs_prescibe_read is called after ORLANSKI stuff
689        and independent of it (executable can contain all).
690      - updated obcs_check
691      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
692        These may be necessary only if tangential velocities are
693        prescribed at OB, not sure, needs testing.
694    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
695      which simplifies the calls and passes the ifc check-bounds test
696    
697    checkpoint55b_post
698    o add a 2D scalar, Z location, exchange_2 routine.
699    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
700      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
701      affects advect_cs results (for the wrong reason): update output.txt
702    o use a more standard discretization for biharmonic viscosity ;
703     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
704      affects results of dome set-up: update output.txt
705    o fix gad_advection.F (CubedSphere part), back to version 1.23
706    o fix bug in mom_vi_del2uv.F (CubedSphere part).
707    
708    checkpoint55a_post
709    o merged code to
710      * prescribe/read time-dependent open boundaries
711        (works in conjunction with exf, cal)
712      * sponge layer code for open boundaries
713      * each boundary N/S/E/W now has its own CPP option
714        (healthy for the adjoint)
715    
716    checkpoint55
717    o up-to-date adjoint of previous breaks
718      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
719      - global_ocean_ebm: adjoint still needs fix (TLM ok)
720      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
721      - carbon: * remove tr1-related adjoint verification
722                * add ptracer as control variable
723    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
724      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
725    
726    checkpoint54f_post
727    o in verification/carbin/ remove experiment related to
728      ALLOW_PASSIVE_TRACER (array tr1 etc)
729      code_ad/ input_ad/ results_ad
730    
731    o add two new packages
732      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
733        + subject to optimization (memory)
734      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
735        + subject to reordering (many GOTOs in the original code)
736        + so far opps is called for every (i,j) point, and then operates in
737          the vertical; one may want to reorder the scheme in order operate in
738          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
739          fields)
740    o overhaul of IO so that we now have flags for MDSIO and/or MNC
741      - all verification tests compile and run with linux_ia32_g77
742      - defaults are compatible with current input files--nothing
743        should change if you were not previously using MNC
744      - MNC output has been added in numerous places (eg. timeave)
745        but there are still a few writes not yet do-able with MNC
746        (this is in progress)
747      - flags now allow for either/or/both use of MDSIO and MNC and
748        documentation will soon follow
749      - numerous small formatting cleanups for ProTeX
750    o add version info (via BUILD_INFO.h) to MNC and stdout
751    
752    checkpoint54e_post
753    o add two new packages
754      - pp81 (Packanowski and Philander, 1981), Richardson number and
755        stratification dependent mixing
756      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
757      - these scheme operate in a similar manner as KPP (without ghat, of
758        course), however there is only one diffusivity that is used for both
759        temperature and salinity (and passive tracers)ç
760    o add offline package
761    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
762      provided by Stephanie Dutkiewicz
763    o genmake2: add ability to search for C compilers and cleanup test output
764      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
765    
766    checkpoint54d_post
767    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
768    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
769      leading to additional shift by 5 days each year of integration
770       (i.e. leading to considerable offset over the years)
771    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
772    o start with no AB and no initial filtering (staggerTimeStep):
773      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
774    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
775      (external loading & cpl import/export stay in forward_step.F)
776    o update coupling interface to work with new staggerTimeStep
777    o change MDSIO ptracers_pickup.
778    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
779    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
780    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
781    
782    checkpoint54c_post
783    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
784      this affects (truncation error) output.txt of test-exp:
785       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
786    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
787    o change Qnet to always be the net heat flux, (+upward).
788      affects (truncation error) output of natl_box exp.: updated
789    o define the max number of passive tracers in PTRACERS_SIZE.h
790    o start to test mnc routinely in exp0
791    o add sea-ice loading (sIceLoad) as a new forcing field.
792    
793    checkpoint54b_post
794    o add testreport "-j JOBS" option for parallel builds (tested and pretty
795       impressive on Altix and Opteron systems)
796    o diagnostics can now write NetCDF files through the mnc package
797    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
798    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
799    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
800      affects (truncation error) output of lab_sea & natl_box exp.: updated
801    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
802    
803    checkpoint54a_post
804    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
805    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
806    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
807    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
808      + internal_wave (shift in writing cg2d_ini_res)
809    checkpoint54a_pre
810    
811    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
812      - modified verification/lab_sea and natl_box_adjoint accordingly
813    
814    checkpoint54
815    checkpoint53g_post
816    o prepare splitting of thermodynamics: store convect.counter in common block
817    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
818      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
819    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
820    o new parameter "nShapS": allow to treat differently S from T (nShapT)
821    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
822    o restore adjointability
823    
824    checkpoint53f_post
825    o modifications that affect AIM experiment results (update output.txt):
826      - no advection of S at top interface Nr (pkg/generic_advdiff)
827      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
828    o AIM pkg:
829      - include stability function into surf.Flux derivative relative to Tsurf
830      - calculate clear-sky radiation & surface temp. change (for diagnostics)
831    
832    checkpoint53e_post
833    o merged cylindrical coord configuration
834    o added rotating_tank experiment
835    checkpoint53e_pre
836    
837    checkpoint53d_post
838    o faulks upgraded: re-generate output.txt that have changed:
839       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
840    o Added Bryan and Lewis, 1979, vertical diffusivity profile
841    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
842    o added Sadourny discretization of Coriolis
843      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
844      - re-enabled use of omega3 (useAbsVorticity)
845    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
846      vector-invariant equations
847      - note: does *NOT* yet use same variable visc. for no-slip BC's.
848    o recoded the lateral boundary conditions for non-hydrostatic w, this time
849      hopefully without new bugs
850      - still to do: biharmonic friction for non-hydrostatic w
851    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
852    o regenerated output for global_ocean_ebm (using -ieee)
853    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
854      of mom_common/
855      - simple re-arrangement of instructions within computing loop
856    checkpoint53d_pre
857    
858    checkpoint53c_post
859    o new version of coupler for AIM+thSIce and Ocean models
860     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
861     - land: change Evaporation of snow
862     - aim with thSIce: fix bug in snow-precip.
863    o changes to calc_gw.F
864     - bug fix for w^2 term near the bottom boundary
865     - (hopefully) improve the lateral slip boundary condtions for use with
866        partial/looped cells
867      - because the bug fix changes two verification experiments anyway (exp5
868        and plume on slope), change the lateral boundary condition from half slip
869        to the value of no_slip_sides
870    o ebm package wasnt quite up to the parallel task. Fixed that.
871    o Adjoint of EBM package + verification
872      * TLM OK
873      * ADM not sufficient accuracy yet (needs further testing)
874    
875    checkpoint53b_post
876    o Commiting new energy balance model to repository
877      * package is pkg/ebm
878      * verif. is verification/global_ocean_ebm
879      * references are in ebm_driver.F
880    C      * X. Wang, P. Stone and J. Marotzke, 1999:
881    C        Global thermohaline circulation. Part I:
882    C        Sensitivity to atmospheric moisture transport.
883    C        J. Climate 12(1), 71-82
884    C      * X. Wang, P. Stone and J. Marotzke, 1999:
885    C        Global thermohaline circulation. Part II:
886    C        Sensitivity with interactive transport.
887    C        J. Climate 12(1), 83-91
888    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
889    C        Destabilization of the thermohaline circulation
890    C        by atmospheric eddy transports.
891    C        J. Climate 7(12), 1870-1882
892    o Will need long integration testing.
893    checkpoint53b_pre
894    
895    o created pkg/mom_common in preparation for variable viscosity code
896    o renamed and split ini_mnc_io
897    o pkg/land: only liquid water can diffuse or run-off
898    o AIM using land: soil wetness availability account for snow
899    o added printMapIncludesZeros to EEPARMS namelist
900    
901    checkpoint53a_post
902    o restore TAMC compatiility for exf_constants.h
903      (no usage of _d in .h)
904    o Additional storing in KPP in an attempt to fix
905      TAMC problem with adjoint of KPP code.
906      (no success...)
907      Identical code works fine with TAF.
908    o Fixed verification/natl_box_adjoint experiments.
909      Initial conditions for Experiments 4 and 5 are now
910      set to "SEAICE_initialHEFF=0", which is more reasonable,
911      and hence gives results closer to that of Experiment 2.
912      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
913    
914    checkpoint53
915    o stable checkpoint with up to date adjoint
916      TLM tests only run for 1st grdchk at the moment. Its unclear if
917      this is a code problem or a problem with resetting code for g_
918      variables that is being autogenerated wrong.
919      Otherwise:
920       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
921       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
922         are both still in chaos following their security messes.
923    
924    checkpoint52n_post
925    o various build (mostly genmake2) changes including:
926      - ability to build/run more easily within Cygwin and MacOS X
927      - more complicated Makefiles with a stronger dependence on Gnu Make
928    o pkg/seaice modifications
929      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
930        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
931        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
932      - changed proxy for geostrophic velocity and updated
933        verification/lab_sea/results/* accordingly
934      - removed ADI dynamic solver from pkg/seaice
935      - replaced all occurrences of 1/CSTICE or 1/CSUICE
936        they caused a segmentation fault under certain circumstances
937      - removed unused field WATR
938    o bug fix in exf-package:
939      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
940         now reflect that.
941    o small fixes in the cal-package:
942      - set reference date to first of January for the 'model'-calendar
943      - failing of cal_CheckDate in cal_FullDate now actually results in a
944        warning
945    o small modifications in exf-package to increase flexibility:
946      - change climtempfreeze from a constant to a runtime parameter that
947        is specified in data.exf_clim (default = -1.9)
948      - introduce runtime parameter windstressmax (default = 2.0) that is
949        specified in data.exf
950    o fix in pkg/thsice:
951      - update Evap (Tsf changes) to be consistent with Latent heat flux
952      - maintain snow precipitation unchanged (even if Tsf >=0).
953     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
954    
955    checkpoint52m_post
956    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
957      this does not change any of the results, because myIter=0 in swfrac always
958      lead to jwtype=2 (the default anyway), but the call makes little sense
959      as a default
960    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
961    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
962      atmospheric model (AIM) to use it ; add a "slab ocean" component.
963    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
964    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
965    o extending useSingleCpuIO option to work with new exch2 I/O format
966      - old-style, missing-tile I/O is still accessible by defining CPP
967        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
968    o monitor package can write to NetCDF files and/or STDOUT
969    o fix re-definition bug in MNC_GRID_INIT_ALL()
970    o doc/api_reference added
971      - a framework for building an API Reference Manual using all
972        the "protex" comments embedded in the code
973      - see pkg/generic_advdiff, pkg/mnc for examples
974    o MNC:
975      - make myThid the last argument for all subroutines
976      - new default for the grid files: NO halos
977      - add useMNC and other run-time flags
978      - separate per-file-group handling of the unlimited dimension
979      - early initialization of MNC w/ flags read at the eeboot stage
980        and lookup tables set in initialize_fixed
981      - write all MNC output to a freshly-created directory
982    o thermodynamics sea-ice (thsice) is now tested with testreport.
983    o test exp. advect_cs: use the standard cs32 grid ; update output.
984    o Added functionality to grdchk:
985      pick global i,j,k position (or nearest wet) where to perform check.
986    
987    checkpoint52l_post
988    o new land formulation:
989      a) use ground enthalpy as prognostic variable to ensure exact
990         energy conservation.
991      b) account for water temperature and for latent heat of freezing
992         in all processes (rain, run-off, ground storage)
993      c) compute surface and ground temperature implicitly.
994    o aim_v23 modification for new land model:
995      a) Treat separately land / ocean / sea-ice surface fluxes
996         to allow implicit computation of land & sea-ice surface temp.
997      b) add snow precipitation.
998    checkpoint52l_pre
999    
1000    o fix problem (when 1 tile is empty) in min/max monitor.
1001    o fix bug in timeAve (u,vZetatave in common block)
1002    o no restoring terms under ice for pkg/seaice
1003    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1004    o bug fix for pkg/seaice pickups
1005    o change MNC call locations and add coordinate attributes
1006    o mask vorticity at the corner ; affects global_ocean.cs output
1007    o fix ini_curvilinear_grid ; test CS experiments with mpi
1008    o aim.5l_cs: modify sea-ice fraction input file ; update output
1009    o exf: Adding simple range check routine for exf fields after read
1010    
1011    checkpoint52k_post
1012    o removed top-level directory "diags"
1013      - we migrated these functions to pkg/timeave a long time ago
1014    o fixed bug introduced in pkg/monitor
1015    o accuracy ctrlprec = 32 insuffient for gradient checks using
1016      averaged fields (I/O via cost_averages)
1017      -> use ctrl.h in active_file*.F to control I/O precision.
1018    o paramter list of CALL ADTHE_MAIN_LOOP
1019    o added initial do_the_model_io to ecco
1020    o set all ...Freq to zero after cost_final
1021      taveFreq, dumpFreq, pChkptFreq
1022    o MAIN and ECCO differentiability restored
1023    
1024    checkpoint52j_post
1025    o fix nchklev in tamc.h for global_ocean...
1026    o Bringing flow and store directives up-to-date
1027    o Really weird thing!
1028      call do_the_model_io from the_main_loop with parameters
1029      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1030      TAF places a faulty re-call of initialise_varia
1031      after cost_final call which should not be there!
1032    checkpoint52j_pre
1033    
1034    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1035      error messages
1036    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1037    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1038      debug output
1039    o modfied mdsio_writefield.F to handle non-global files under exch2
1040    o update AIM Cubed-Sphere exp (aim.5l_cs):
1041      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1042    o update AIM Equatorial Channel exp:
1043      use standard aim_v23 pkg and change the SST fields to be more realistic.
1044    o globalFile now works with exch2
1045    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1046      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1047    o limit timeave output for hi-res integrations
1048    
1049    checkpoint52i_post
1050    o removed CPP_EEOPTIONS.h from verification/*/code
1051    o updated the tiling for global_ocean_pressure
1052    checkpoint52i_pre
1053    
1054    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1055      the old pkg/aim).
1056    
1057    checkpoint52h_pre
1058    o shortened offending lines in exch2_send_rx?.template
1059    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1060    o genmake2: add build & execute test for NetCDF code
1061    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1062      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1063    o added useSingleCPUIO flag to monitor.F and mon_out.F
1064    o added temporary hack for sea-ice dynamics on the cube:
1065      metric terms are ignored and it is assumed that
1066      there is no sea-ice on cube faces 1, 2, 4, and 5.
1067    
1068    checkpoint52f_post
1069    o added exch2 cube routines to pkg/exch2
1070    o modified hs94.cs-32x32x5 to use it
1071    o added new grid files to hs94.cs-32x32x5
1072    checkpoint52f_pre
1073    
1074    checkpoint52e_post
1075    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1076      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1077    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1078      to work with implicit vertical advection and AB ;
1079    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1080    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1081     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1082    checkpoint52e_pre
1083    
1084    o fix bug in impldiff when Nr=1 or Nr=2.
1085    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1086    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1087    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1088      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1089    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1090    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1091    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1092    
1093    checkpoint52d_post
1094    o re-tiled many expts to allow comparison in multi-processor mode
1095      - updated output accordingly
1096      - changed hs94.128x64x5 to use intial T from file rather than use the
1097        random number generator
1098    o add infrastructure in model routines for fizhi and gridalt packages
1099    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1100    o changes to permit hi-res, cubed-sphere, configuration
1101      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1102      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1103      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1104        of surface winds for the cube
1105      (A verification experiment, based on global_ocean.cs32x15, but with
1106       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1107       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1108       complete with example surface forcing files and matlab scripts to look
1109       at the output and compare it with that of global_ocean.cs32x15.)
1110    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1111       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1112       to conform to the common rule.
1113    o check-in the first version of the coupler + interfaces for multi-components
1114       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1115       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1116       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1117       - ocean and atmos. share the same horizontal grid (no interpolation).
1118       - exchanges between component and coupler is done in forward_step
1119    o new verification experiment, cpl_aim+ocn:
1120       coupled ocean - AIM atmosphere on cs32 grid.
1121    
1122    checkpoint52d_pre
1123    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1124    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1125    
1126    checkpoint52c_post
1127    o Fixing OPTIONS files for use of exf:
1128      - ALLOW_ECCO not needed
1129      - ECCO_CPPOPTIONS.h should not be included from
1130        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1131        as has been the case in the past
1132      - All cal/exf related options are currently set in
1133        single header file. Should remain so until we
1134        agree on a consistent new policy.
1135    o Removed all CPP options for cal package.
1136      cal has no more CPP options.
1137    o modified STOREs in GAD_ADVECTION
1138    o corrected key comp. for passkey
1139    
1140    checkpoint52b_post
1141    o new version: "thsice" of thermodynamic sea-ice pkg:
1142     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1143     - modify fluxes but do not change theta directly;
1144     - light cleaning of bulk_force pkg (still needed with thsice).
1145     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1146       + output_thsice.txt to test thsice & bulk_force pkgs.
1147    o put back grid & coriolis monitor output.
1148    checkpoint52b_pre
1149    
1150    o call "do_the_model_io" at the beginning (=> dump initial state)
1151    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1152    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1153      (need info on NUMBER_OF_PTRACERS)
1154    o missing PTRACERS headers in some routines
1155    o default tamc.h in pkg/autodiff supposed to crash
1156      to ensure proper customization
1157    
1158    checkpoint52a_post
1159    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1160      - moved surfaceTendencyTice from pkg/seaice to main code
1161      - subroutine FREEZE_SURFACE now limits only surface temperature
1162        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1163        => new output.txt for global_ocean.cs32x15 & global_with_exf
1164      - keep the old version of FREEZE for backward compatibility;
1165        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1166      - corresponding modifs for TAF directives
1167    o added surface flux output variables to TIMEAVE_STATVARS
1168    o time-averaged output for pkg/ptracers
1169    o fix problem with ECCO-related divided adjoint
1170      snapshot file was missing some ad-variables,
1171      but no warning issued by TAF
1172    
1173    checkpoint52a_pre
1174    o some bug fixes for #undef REAL4_IS_SLOW
1175    
1176    checkpoint52 = ecco_c52_e35
1177    o after testing adjoints of checkpoint51u_post
1178    
1179    checkpoint51u_post
1180    o this is the post-merge tag of the ecco-branch
1181      (needs another clean checkout and re-testing)
1182    o various natl_box_adjoint configs and results
1183      but no input fields
1184    o obcs adjoint not yet merged!
1185    o adding ECCO global 1x1 and 2x2 degree configs
1186    o updated/extended some store directives for seaice
1187    o pkg/ecco now containes ecco-specific part of cost function
1188    o top level routines the_main_loop, forward_step
1189      supersede those in model/src/
1190      previous input data.cost now in data.ecco
1191      (new namelist ecco_cost_nml)
1192    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1193    
1194    checkpoint51t_post
1195    o this is the pre-merge tag of the ecco-branch
1196    
1197    checkpoint51s_post
1198    o cleanup: removed various obsolete #define-s
1199    o pkg/grdchk
1200      - renamed 'ph-grd 3' to 'grad-res'
1201      - merged from ecco-branch
1202        (remaining bug fixes for obcs gradient checks)
1203      - additional high-precision output for testreport
1204        (grep for 'precision_grdchk_result')
1205    
1206    checkpoint51r_post
1207    o cleaned up or removed CPP_OPTIONS.h files
1208    o updated results for some of the tests to reflect the new
1209      optfiles (-ieee: -O0 instead of -O3)
1210    
1211    checkpoint51q_post
1212    o cd_code:
1213      - moved cd_scheme.F -> cd_code_scheme.F
1214      - separate read_checkpoint from cd_code_ini_vars.F
1215      - separated cd_code part from write_checkpoint
1216      - updated AD_SOURCE, generated .flow
1217      - added CD_CODE_VARS.h to the_main_loop
1218      - Moving cd_code specific store dir.s to pkg/cd_code
1219    o ctrl package totally restructured
1220      - pack/unpack now optional and decoupled from
1221        xx_/adxx_ I/O
1222      - ctrl_pack/unpack cleaned
1223        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1224      - confined inclusion of AD_CONFIG.h to where necessary.
1225    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1226    
1227    checkpoint51p_post
1228    o create initial cd_code package
1229      - WARNING: the initialization of fields within packages
1230        is broken because INI_FIELDS (where READ_CHECKPOINT is
1231        called) is called *before* PACKAGES_INIT_VARIABLES.
1232        This seems to be backwards since
1233        1) its important to initially zero the entire field including
1234           the "halo" region
1235        2) zeroing needs to be done *before* reading pickup info
1236           and the pickup call might or might not happen in any
1237           particular run
1238      - this needs an overhaul for R2
1239    o cleanup verification/*/code/GMREDI_OPTIONS.h
1240    o cleanup testreport
1241    
1242    checkpoint51o_post
1243    o bringing AD-related verif's up to date with genmake2
1244      - carbon/
1245      - global_ocean.90x40x15/
1246      - hs.94.1x64x5/
1247      - (front_relax/ )
1248    o (more) consistent directory structure for AD-related verif.'s
1249    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1250    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1251    o bug fix in find_alpha.F for MDJWF:
1252      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1253        change rho -> rho-rhoConst
1254      - replace call find_rho to find_rhonum
1255    o initialisation of rFlx extended to full array (required by TAF)
1256      and shifted to thermodynamics
1257    o removed PTRACERS.h in ptracers routine
1258    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1259    o Correcting initialisations for fVerU, fVerV.
1260    o helping TAF to recognize dependency on kUp for
1261      fVerU, fVerV
1262    o Replacing delZ by delR in pkg/ctrl/
1263    checkpoint51o_pre
1264    
1265    o undid all of cp51 pending some cleanups and discussion
1266    o added the [#include "AD_CONFIG.h"] statement to all files that need
1267       it for adjoint/tl #defines
1268     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1269     o removed tools/genmake since it no longer works
1270    
1271    checkpoint51n_post
1272    o modifications to make FREEZE flux visible to pkg/kpp
1273      - moved surfaceTendencyTice from pkg/seaice to main code
1274      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1275      - subroutine FREEZE now limits only surface temperature
1276        (this means new output.txt for global_ocean.90x40x15,
1277         global_ocean.cs32x15, and global_with_exf)
1278    o added surface flux output variables to TIMEAVE_STATVARS
1279    
1280    checkpoint51n_pre
1281    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1282    o added [#include "AD_CONFIG.h"] to all files that use the following
1283      defines:
1284      - ALLOW_ADJOINT_RUN
1285      - ALLOW_TANGENTLINEAR_RUN
1286      - ALLOW_ECCO_OPTIMIZATION
1287    
1288    checkpoint51m_post
1289    o incorporating changes to get TAMC/TAF working in genmake2
1290      - added new TAMC/TAF targets to the Makefile
1291      - various cleanups related to package handling
1292      - these changes should have no impact on the forward model
1293    
1294    checkpoint51l_post
1295    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1296     - faster algorithm for cal_addtime.F
1297     - higher precision arithmetic, where needed
1298     - pkg/exf *startdate variables changed from calendar date to
1299       model integration time
1300    
1301    checkpoint51l_pre
1302    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1303    o enable to apply restoring on S & T only in a latitude band.
1304    o update output (external_forcing_surf modif. change truncation errors)
1305       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1306    
1307    checkpoint51k_post
1308    o change default to: useNHMTerms=.FALSE.
1309     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1310       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1311     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1312        exp1, ideal_2D_oce
1313     - change data file of oceanic exp (leave the results unchanged for now)
1314       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1315    o set gravitySign automatically according to the vertical coordinate used
1316      (and change sign: back to "logical" value: +1 when R increases downward)
1317    o added an include barrier to the default CPP_OPTIONS.h and
1318      removed the #include "PACKAGES_CONFIG.h" from it
1319    o fix a bug in mom_fluxform (from chk51j_post)
1320    
1321    checkpoint51j_post
1322    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1323    o adjusted some flow directives (dynamics, thermodynamics)
1324    o added cubed-sphere case to test cost function
1325    o heckpoint_lev?_directives.h now include
1326      pkg-specific directives, whenever those are enabled.
1327    o Moving pkg-specific flow directives to corresponding pkg
1328      Moving pkg-specific differentiation list to corresponding pkg
1329      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1330      ---> conventions are
1331           - pkg_ad.flow
1332           - pkg_ad_diff.list
1333           - pkg_ad_check_lev?_dir.h
1334    
1335    checkpoint51i_post
1336    o merge of the branch-genmake2
1337      - knowingly breaks the older genmake
1338      - automatic generation of all ALLOW_${PKG_NAME} defines
1339      - new testreport supersedes older testscript
1340    o large number of package inclusion and header cleanups
1341    checkpoint51i_pre
1342    
1343    o new output for adjoin of global ocean vector invariant
1344    o fix for checkpoint of thermodynamic seaice and bulk_force
1345    o Steph gchem various cleanups
1346    
1347    checkpoint 51h_pre
1348    o fixed some single quotes
1349    o modify gchem pkg to be more versatile
1350    o modifications to clean up dic pkg
1351    o add pkg/cfc
1352    
1353    checkpoint51g_post
1354    o provide links for ARPACK and ADM*TLM
1355    o start removing verification/vero/
1356    o update AD-related stuff
1357      (in particular some IF-statements in model/src/ routines)
1358    o adding to verification/global_ocean.90x40x15/ adjoint of
1359      vector invariant setup
1360    
1361    checkpoint51f_post
1362    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1363    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1364      of tracer Green's fucntions for ocean inversion project.
1365    
1366    checkpoint51f_pre
1367    o Added on-the-fly spatial interpolation capability
1368        "USE_EXF_INTERPOLATION" to pkg/exf.
1369      - This is a temporary Cartesian-grid hack until
1370        the super-duper ESMF coupler becomes available.
1371      - See verification/global_with_exf/README for usage example.
1372      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1373        flags and modified pkg/seaice accordingly.
1374    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1375        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1376        non-local transport term.
1377    
1378    checkpoint51e_post
1379    o pkg/mom_vecinv:
1380      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1381      - add time-ave diagnostic of vorticity advection.
1382    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1383    o atmospheric geopotential: - include water vapor effect;
1384                                - use p^kappa in p* scaling.
1385    o land pkg: read initial state from files.
1386    o AIM : add stratospheric drag in the upper level
1387    
1388    checkpoint51d_post
1389    o change function ILNBLNK (=> last non-blank char.) to return zero
1390      (instead of the string length) when the string. char is empty
1391    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1392    o modif's to restore TAMC compatibility
1393      - avoid "_d" constructs in PARAMETER declarations
1394      - avoid interrupting lines by comment lines
1395    o Use cluster local disks for purely local I/O
1396      vs. globally visible disks needed for ctrl stuff
1397      (merged from ecco-branch)
1398      - new active_file_loc... and mdsio_..._loc routines
1399      - affected packages: autodiff, ctrl, grdchk, mdsio
1400    
1401    checkpoint51c_post
1402    o introducing integer flag debugLevel
1403      - debLevZero: suppress all output
1404      - debLevA: standard
1405      - debLevB: equivalent to current debugMode=.TRUE.
1406    o introducing pathname variable mdsioLocalDir for mdsio
1407      that can be specified at runtime
1408      (relevant for cluster I/O to local disk)
1409    `
1410    >>>checkpoint51b_post
1411    adjoint of ptracers
1412    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1413    o extended state in checkpoint_lev?, etc.
1414    o alternative ctrl/cost with tr1 or ptracer
1415    o new comlev1_bibj_ptracers
1416    o new ptracers.flow
1417    o made ptracers_forcing same as external_forcing_s
1418    o added verification for adjoint with ptracers
1419      - adm. grdchk fail so far
1420      - tlm. grdchk OK
1421      - checked tapelev/comlev recomputations: OK
1422    <<<checkpoint51b_pre
1423    
1424    checkpoint51a_post
1425    o added code for biogeochemistry package
1426      - new pkgs: dic, gchem
1427      - new subroutine in ptracers
1428    o modify code for biogeo packages
1429      - in model/src and pkg/ptracers
1430    
1431    checkpoint51
1432    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1433      - autodiff, ctrl, exf, grdchk, seaice
1434      kept separate packages
1435      - cost, ecco, obcs
1436    o updating verification/internal_wave, verification/lab_sea
1437      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1438    
1439    checkpoint50i_post
1440    o Preparing next differentiable checkpoint and sync
1441      of MAIN vs. ecco-branch
1442      - 1st step: this one is differentiable
1443      - 2nd step: next(! not this) checkpoint will have updated packages
1444                  from ecco-branch)
1445    
1446    checkpoint50h_post
1447    o new package "land": provide surface BC for AIM.
1448    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1449    o AIM: use true log-P extrapolation for near surface temp (= as in
1450        F.Molteni paper) ; update aim.5l_cs output.
1451    o New variable in PARM03 for more flexible pickups
1452    o somewhat cleaned package initialisation sequence for
1453      ctrl/ cost/ ecco/ in packages_... routines
1454    
1455    checkpoint50g_post
1456    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1457      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1458      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1459        made the default because of faster convergence than ADI
1460    
1461    checkpoint50f_post
1462    o exf totally restructured
1463      - replaced all exf_set_ routines by one generic exf_set_gen.F
1464        and made sure it's still differentiable
1465      - split exf_getffields.F into new exf_bulkformulae.F
1466      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1467      - updated adjoint/makefile and relevant verif. accordingly
1468    
1469    checkpoint50f_pre
1470     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1471          + change Evap over land. (update aim.5l_cs output)
1472     o added missing .cvsignores and made uniform across expts
1473     o changed configuration of tidal_basin_2d expt
1474     o added pkg/debug functions for tracing code in fatal crashes
1475     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1476     o new fn in pkg/monitor to stop model if solution grows too big
1477     o removed lots of single quotes from comments
1478    
1479    checkpoint50e_post
1480    o make KPP work with PTRACERS
1481     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1482       nearly a copy of kpp_transport_s
1483     - there is no analogue to SurfaceTendencyS, so I have to use
1484       gPtr(of the surface layer) instead
1485    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1486    checkpoint50e_pre
1487    
1488    checkpoint50d_post
1489    o change kpp output from multiple-record state files to single-record state
1490      files analogous to write_state.F
1491    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1492      analogous to the cg2d-related output.
1493    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1494      so that writing to internal file fn (with length 512) fails.
1495    checkpoint50d_pre
1496    
1497    checkpoint50c_post
1498    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1499    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1500    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1501    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1502    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1503    
1504    checkpoint50c_pre
1505    Merging from release1_p13:
1506    o bug fix for pkg/seaice dynamic solver
1507    o Added SEAICE_initialHEFF to pkg/seaice
1508    
1509    checkpoint50b_post
1510    o store u*,v* in gU,V instead of in guNm1,gvNm1
1511    o in order to put the momForcing out of the Adams-Bashforth:
1512      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1513      to timestep.F
1514    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1515    o re-generate output for highly sensitive test-exp:
1516       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1517    
1518    checkpoint50b_pre
1519    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1520    o corrected CPP option mismatch in exf_Bulk... functions for case
1521      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1522    
1523    checkpoint50a_post
1524    o Bug fix for merging between c50 and KPP.
1525      ikey was passed from thermodynamics to kpp_calc via
1526      common block rather than being recomputed in kpp_calc,
1527      in contradiction with new key itdkey.
1528      New key ikppkey created, and tamc.h headers updated.
1529    
1530    checkpoint50
1531    - 2nd step of merge with ecco-branch:
1532      merge changes in ecco-branch back into main trunk
1533    - bug fix in find_alpha
1534    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1535    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1536    - merged some sliced AD support routines
1537    
1538    checkpoint49
1539    merged from ecco-branch:
1540    o exf:
1541      - Enable initialisation of forcing fields to constant
1542        (runtime) values.
1543      - in exf_getffields.F
1544        Reduce i-/j-loop to interior domain, discarding overlaps.
1545        That also fixes wrong TAF-key computations for key_1, key_2
1546        with bulf formulae.
1547      - exf_init.F modify #ifdef for exf_init_evap
1548      - exf_getffieldrec.F, ctrl_getrec.F
1549        The following INT-usages are not safe:
1550          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1551          fldcount = int(fldsecs/fldperiod) + 1
1552        and were modified.
1553    o autodiff: checkpoint_lev...
1554      - updated storing for bulk formulae (some arrays were missing)
1555      - added state for seaice package
1556      - synchronized with main branch
1557    o DIVA:
1558      Modif.s in
1559      - the_main_loop.F
1560      - the_model_main.F
1561      and added cost_final_restore.F cost_final_store.F
1562      o With these changes, it is possible to fully separate
1563        the first forward run to compute the cost function (mdthe_main_loop)
1564        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1565        into separate model executions.
1566        This enables better tuning of DIVA to given queue sizes.
1567      o Loss of cost function value in consecutive DIVA runs is
1568        fixed by storing to 'costfinal' file.
1569      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1570        beginning/end of adjoint integration is accounted for.
1571      The current changes apply to TAF-1.4.26.
1572      TAF has one remaining bug, requiring one manual change
1573      (see MITgcm manual).
1574    o cal: synchronized between MAIN and ecco-branch
1575    
1576    checkpoint48i_post
1577    o Changes to restore differentiability of code w.r.t. previous tag
1578      (mostly adding new routines to make list and replacing
1579      pressure by totPhiHyd).
1580    o Updated and merged grdchk package
1581      - has both ADM and TLM checks
1582      - works for single- and multi-proc.
1583      - output cleaned
1584      - worked successfully for parallel DIVA
1585    o genmake:
1586      - Adding -platform=SP4
1587      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1588    o Modif. for DIVA:
1589      ctrl_unpack should not be called in intermediate DIVA interval.
1590      (similar thing would apply for active files such as
1591      tbar, sbar, psbar, which should not be reinitialised;
1592      only relevant for ecco-branch)
1593    
1594    checkpoint48h_post
1595    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1596    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1597    o Added SEAICE_initialHEFF to pkg/seaice
1598    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1599    
1600    checkpoint48g_post
1601    --- EOS:
1602    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1603      store total Potential in totPhyHyd for diagnostics & EOS.
1604    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1605    --- Pressure/geopotential gradient:
1606    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1607    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1608      ( changes results of global_ocean_pressure )
1609    o NLFS + z-coord.: add eta*Rho' contribution.
1610    o accurate phiHyd when using interface-W at the middle between 2 centers
1611     ( changes results of ideal_2D_oce )
1612    o includes r* 2nd term in potential gradient.
1613    
1614    checkpoint48f_post
1615    Merging from release1_p12:
1616    o Modifications for using pkg/exf with pkg/seaice
1617      - improved description of the various forcing configurations
1618      - added basic radiation bulk formulae to pkg/exf
1619      - units/sign fix for evap computation in exf_getffields.F
1620      - updated verification/global_with_exf/results/output.txt
1621    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1622      (SBO) core products, including oceanic mass, center-of-mass,
1623      angular, and bottom pressure (see pkg/sbo/README.sbo).
1624    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1625      to avoid negative values in shallow regions.
1626      - updated verification/natl_box/results/output.txt
1627      - updated verification/lab_sea/results/output.txt
1628    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1629    o Added useSingleCpuIO option (see PARAMS.h).
1630    o Updated useSingleCpuIO option in mdsio_writefield.F to
1631      work with multi-field files, e.g., for single-file pickup.
1632    o pkg/seaice:
1633      - bug fix in growth.F: QNET for no shortwave case
1634      - added HeffFile for specifying initial sea-ice thickness
1635      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1636    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1637      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1638    o pkg/seaice:
1639      - adjoint-friendly modifications
1640      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1641    
1642    checkpoint48e_post
1643    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1644    o dynamics: change definition of computational domain & adapt mom_fluxform
1645      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1646    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1647        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1648        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1649        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1650        inverted_barometer solid-body.cs-32x32x1
1651      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1652    
1653    checkpoint48d_post
1654    o in preparation for r*:
1655     a) use pre-computed gradient of hydrostatic potential:
1656        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1657     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1658        => affects results of glob_oce_pressure (different truncation error)  
1659      update output.txt of ideal_2D_oce & global_ocean_pressure
1660    
1661    checkpoint48d_pre
1662    o in preparation for r*:
1663      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1664      pass the 2 comp. of the grad. as arguments to momentum S/R.
1665      but for the moment, only used if it does not change the results.
1666    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1667    
1668    checkpoint48c_post
1669    Modifications in treatment of initial flux forcing controls
1670    to avoid extra storing of flux fields.
1671    
1672    checkpoint48c_pre
1673  o Added tidal_basin_2d experiment (currently 1D!)  o Added tidal_basin_2d experiment (currently 1D!)
1674  o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)  o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1675    

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