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revision 1.146 by heimbach, Tue Mar 25 22:48:11 2003 UTC revision 1.569 by jmc, Wed Oct 12 02:13:40 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 vorticity & strain are now computed without masking, to account for
8      no-slip-side BC in variable viscosity calculation ; mask is applied
9      anyway later on, before computing advection/coriolis terms.
10    o modify exp4 to test new obcs support reading from external files
11      and for passive tracers
12    o fix behavior of ptracers_monitor when monitor output is written to a
13      netcdf-file; still not independent of monitor.F (writes in the same
14      file).
15    o change default value of tRef (put a uniform, meaningful value for ocean
16      & atmos) and initialize sRef (was missing, as Martin mentioned).
17    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
18      to be proportional to enstrophy dissipation length.  Thus,
19       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
20      This is now consistent with Smagorinsky and with the manual.
21    
22    checkpoint57u_post
23    o OBCS and PTRACERS: add open boundary support for passive tracers
24      - either use homogenous (pseudo) v.Neumann conditions or prescribe
25        OB-values from file; this is not different from the way theta and salinity
26        are treated
27      - however, Orlanski-radiation conditions are not supported, and the model
28        will stop if you use pTracers and Orlanski at the same time.
29      - beefed up the rountine obcs_external_fields_load: now only those open
30        boundary values are overwritten with values from files for which there
31        are really files, otherwise the OB-fields remain untouched. This makes
32        it possible to use different OBs at different ends of the domain (as
33        with EXF)
34    o reduce number of exch calls in shap_filt (s2).
35    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
36      truncation level) 4/5 MLAdjust test results (11&12 digits match).
37    
38    checkpoint57t_post
39    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
40    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
41      same truncation, independent of the face number: affects affects several
42      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
43    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
44      note that biharmonic viscosity + no-slip was not tested in any experiment.
45    o fix bug in non-linear free-surf side-drag ; generate new output for
46      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
47    o make mnc honor the writeBinaryPrec flag for most kinds of output
48    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
49    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
50      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
51    o add brackets in multi-terms sum to get same truncation, independent of
52      the face number (manage to get exactly same value of gU,gV at the cs-edge)
53      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
54    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
55      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
56      a maximum grid-scale Reynolds number.  Also, changes all length calculations
57      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
58      Suggested values of viscosity parameters found in mom_calc_visc.
59      Many new viscosity diagnostics available.
60    
61    checkpoint57s_post
62    o Add clearing-house for viscosity calculations, mom_calc_visc and
63      correct numerous bugs in LeithD and Smagorinsky discretizations.  
64      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
65      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
66      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
67      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
68      The Strain-Tension form is now called with useStrainTensonVisc=.true.
69      ViscAhStrain and viscAhTension are now retired.
70    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
71    o In response to JMC's bug report, genmake2 now ignores any soft-links
72      that it finds in the *current* directory when searching for files.
73      Soft-links found in any other source directories will still work as
74      they did before.
75    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
76      a C routine to unlimit the stack size
77    o mnc-ify pkg/aim snapshot vars
78    o mnc-ify pkg/land as requested by Daniel
79    o various changes to mnc including:
80      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
81      - output can now be grouped so that all files within a group
82          change the ITER portion of their names in lock-step together
83      - can now read ("global") PER-FACE (in addition to PER-TILE) files
84          and works with both EXCH1 and EXCH2 (but needs more testing)
85      - writing works for all verification test cases w/ g77 on Linux
86    
87    checkpoint57r_post
88    o make MNC variable initialization happen earlier
89    o add diagnostics for (almost) each term of the momentum Eq.
90    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
91    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
92    o remove MINIMAL_TAVE_OUTPUT option ;
93      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
94    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
95      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
96    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
97    o add time-dependent SST, SSS control
98    o cost terms in ecco/ modularized (new cost_generic.F)
99    o cost_averages routines are modularized (new cost_averagesgeneric.F)
100    o new infrastructure for seaice model vs. obs misfits in seaice/
101      * driver from the_main_loop.F is seaice_cost_driver.F
102      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
103      * gradient check in Exp. 6a of natl_box_adjoint/
104    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
105      (see README file)
106    
107    checkpoint57q_post
108    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
109    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
110      - bug was reported by Jean-Michel and Ian Fenty
111    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
112      update exp. cpl_aim+ocn output.
113    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
114      Needed for high-res. runs with large global files
115      to be able to limit tapelev size
116    o Changed some tests for adjoint:
117      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
118      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
119      * global_ocean.90x40x15/ back to default 3-level checkpointing
120    o Modifications to enable scripted COMMON to MODULE conversion
121      * verification/OpenAD/code/ has necessary scripts and description;
122      * converts, compiles and runs successfully;
123    
124    checkpoint57p_post
125    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
126    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
127      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
128    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
129    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
130      (was already the case for dissipation with mom_vecinv,
131       and also the case for grad.PhiHyd when staggered-timeStep)
132      This will allow to put dissipation out-off the AB time-stepping.
133     Unfortunately, affects truncation error. Update output of exp. that "fails"
134      (cg2d matching number) and leave the others for later: front_relax(10),
135      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
136      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
137    
138    checkpoint57o_post
139    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
140      (2) its ready to be documented during the 20050801 DocFest
141    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
142      for ideal_2D_oce and lab_sea on linux_ia32_g77
143    o set to #undef CTRL_SET_OLD_MAXCVARS_30
144      in global1x1_tot/code_seaice_adj to access indices 32, 33
145      (worth another tag)
146    
147    checkpoint57n_post
148    o adding precip control xx_precip 32
149    o adding swflux control xx_swflux 33
150    o Replacing 10 forcing penalty cost routines by 1 generic.
151    o Implementing partitioning in time-mean and variable adjustment
152      for atmos. state.
153    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
154    o in natl_box_adjoint:
155      * updated exp 1 to 10
156        (but does not have time-mean vs. variable split results yet)
157    o updated global1x1/*_seaice_adj/
158      to incorporate latest changes
159    o enable useSingleCpuIO for mdsio vector routines
160      (applies in particular to tapelev I/O)
161    o removed inefficient K-loop in all active_file*control*.F
162    
163    checkpoint57m_post
164    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
165      and advect_cs (use EXCH-2 and standard cs-32 grid files).
166    o pkg/exch2: filling of face-corner halo regions is optional
167      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
168    
169    checkpoint57l_post
170     tag before updating tutorials (pre-release-2)
171    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
172       for output and interpolation of input fields onto model grid)
173    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
174       Affects results of exp. rotating_tank ; update output.txt.
175    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
176          and taking the square quantity and/or using a fraction-weight field.
177    o fix aim_diagnostics_init.F mate numbers.
178    o add mnc output capability to diagnostics/diagstat and update
179      our cvsignore files for the ACSII output generated
180    
181    checkpoint57k_post
182    o lab_sea now uses diagnostics package and provides a suite of
183      new EXF diagnostics output.
184    
185    checkpoint57j_post
186    o exf
187      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
188        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
189        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
190      * extended diagnostics output
191        - now includes all EXF variables
192        - hs, hl moved to common block
193        - separate S/R for diagnostics, called after ctrl vector is added
194        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
195        - EXFqnet contains true Qnet (i.e. includes qsw)
196      * updated verif. lab_sea, global_with_exf
197      * Rearranging hflux (exf_mapfields -> exf_getforcing)
198        to ensure that diagnostics sees a true EXFqnet
199    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
200    o diagnostics pkg: change pointers so that 1 diagnostic can be used
201      several times with different frequencies.
202    o mnc-ify the thsice package as requested by Daniel Enderton
203      - the monitor--MNC output needs work
204      - many attributes need to be added (most are currently blank)
205    o mnc-ify theaim_v23 package as requested by Daniel Enderton
206      - many attributes need to be added (most are currently blank)
207    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
208    o add Sadourny like discretization to the 4th.O vorticity advection scheme
209    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
210      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
211         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
212    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
213     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
214    
215    checkpoint57i_post
216    o Diagnostics package was changed: diagnostic allocation is now deactivated
217      by setting an empty file name in the namelist (used to be by setting 0 frequency)
218    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
219      add 1rst Order upwind vertical Shear.
220    o add a quick fix for A/B checkpointing in OFFLINE mode
221    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
222      end-run around the C/Fortran linking horror in eesup/src/timers.F
223    o added pkg/runclock: allows user to terminate run based on wall clock
224    o added non-hydrostatic scaling parameter: nh_am2
225    o pkg/my82: futile attempt to make results compiler-independent by adding
226      some "_d 0", etc. no effect.
227    o for mnc output, fill the 'T' coordinate var with myTime and create a
228      separate 'iter' variable for iteration count
229    o pkg/diagnostics:
230      add new capability: output of Global/Regional & per-level statistics ;
231      tested against monitor output (including land & thSIce) on various exp.
232    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
233    
234    checkpoint57h_done
235      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
236      data.diagnostics, data.gchem, data.ptracers) is done.
237    
238    o pkg/diagnostics: prepare for Global/Regional statistics.
239      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
240    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
241      and rename it: DIFFERENT_MULTIPLE
242    
243    checkpoint57h_post
244    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
245    o pkg/diagnostics: change output frequency, now in seconds (instead
246      of Nb of iterations). This requires to change data.diagnostics.
247    checkpoint57h_pre
248    
249    o in mnc, let the user create the output dir if both mnc_outdir_date
250      and mnc_outdir_num are false
251    o add fflags() to pkg/diagnostics which allows one to specify, on a
252      per-file basis, the file precision [default behavior is unchanged]
253    o added diagnostics to pkg/kpp, including computation of mixed layer
254      depth based on a temperature/density criterion
255    o updated verification/natl_box to test the new pkg/kpp diagnostics
256    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
257    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
258    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
259      not mnc -- this mistake was found by JMC and is now corrected
260    
261    checkpoint57g_post
262    o add Adams-Bashforth 3rd Order time stepping:
263      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
264      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
265    checkpoint57g_pre
266    
267    o make lambda[Theta,Salt]ClimRelax spatially varying
268      (default remains spatially uniform constant based on tau)
269    o added new control variables
270      * init. uVel, vVel, etanN
271      * lambda[Theta,Salt]ClimRelax
272    o separate masks used for ctrl_pack/unpack 'from write_grid' output
273      (suggested by G. Forget)
274    
275    checkpoint57f_post
276    o add parameter "baseTime" = model base time = time at iteration zero
277      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
278      account for baseTime shift
279    o move Coriolis arrays from PARAMS.h to GRID.h
280    checkpoint57f_pre
281    
282    o mnc-ifying the seaice package
283    o introduced an alternative length scale calculation for use in the limiting
284      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
285    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
286    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
287      as well as grad(vort3).  Made it compatible with both approximate form
288      for the cubed sphere and full form of these gradients.  Added flag
289      useFullLeith to select between approximate and full form.  
290    o add "d0" in getcon.F to reduce differences between compilers/platforms
291      update output.txt of exp. fizhi-gridalt-hs
292    o change port_rand funtion to allow to set the seed.
293    o fix obscure MNC bug involving conversion between reals and integers
294      - it caused no problems with certain (eg. gcc, ifc) compilers but the
295        new version is now more standards-compliant
296    o adjoint-related modifications
297      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
298      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
299      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
300    
301    checkpoint57e_post
302    o Adding eddy stress controls a la Ferreira et al.
303    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
304    
305    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
306      update output.txt of exp. fizhi-gridalt-hs
307    o add more "Z" dimensions and associated coordinate vars to MNC
308    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
309    o parameter calendarDumps: when set, approximate months (30-31 days) and years
310      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
311      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
312      months and years.  Requires pkg/cal.
313    o diagnostics: add pickup functionality
314      - off by default for backwards compatibility
315      - current version only uses MDSIO -- MNC will be added
316    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
317    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
318    
319    checkpoint57d_post
320    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
321    o modify verification/ideal_2D_oce so that it tests the creation of mnc
322      output from the diagnostics package
323    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
324    o make genmake2 more portable by using ".$FS" instead of ".f" for more
325      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
326    o add coordinate variables to the MNC output from the diagnostics package
327    o change MNC-flags default value: true when useMNC=TRUE
328    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
329      the ability (off by default) to read the grid information using MNC
330    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
331    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
332    o do snap-shot diagnostics at the middle of the time-interval (instead of
333      at the end).
334    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
335      new test for AIM with thSIce + slab-ocean
336    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
337    o move state variable diagnostics to the beginning of the time step ;
338      (note: still needs some work specially for snap-shot diagnostics)
339      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
340    
341    checkpoint57c_post
342    o Change testing option (-ieee) to get closer agreement between g77 & ifort
343    o generate new output.txt files on faulks with g77 & the new -ieee option
344    checkpoint57c_pre
345    
346    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
347      update output.txt of exp. global_ocean.90x40x15
348    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
349      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
350    o add saltFlux(+File) forcing capability with periodicExternalForcing
351    o allow to use pkg diagnostics for GM-Redi & ThSIce output
352    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
353    o improvements for the MNC output from DIAGNOSTICS:
354      - correct handling of the unlimitied dimension
355      - all dims now have associated coordinate variables
356      - variables located at U, V, and Corner ("Z") points are now written
357        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
358        *all* data points are output
359    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
360    o added pkg/seaice/seaice_monitor.F
361    o mdsio_readfield.F can now read files visible only to master MPI process.
362    o pkg/seaice: some test code for ice-modified ocean stress
363    o exf_getffields interpolation defaults to bilinear for all scalar forcing
364      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
365      spurious negative numbers for precipitation and humidity.  Will cause
366      some small numerical differences for integrations using pkg/exf/exf_interp.F.
367    o pkg/ctrl/
368      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
369        May be enabled via doPackDiag
370      *  introduce z-scaling of
371         + gradient (doZscalePack) and
372         + control (doZscaleUnpack)
373    o pkg/mdsio/
374      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
375      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
376    
377    checkpoint57b_post
378    o simplify options in diagnostics_fill arguments (remove weird combinations)
379    o fix MNC coordinate variables so that they now contain per-face index
380      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
381      general, EXCH2 grids are only aligned to a "local" coordinate system
382    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
383    o Implement instantaneous output within pkg diagnostics:
384      setting a negative frequency in data.diagnostics produces
385     "snap-shot" output (as opposed to time-average if freq > 0)
386    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
387      NOTE: change ptracer diagnostics name: use 2 characters to work with
388            more than 9 tracers. Add also diagnostics of advect & diffus flux.
389    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
390      becomes the coordinate variable for the 'T' dimension
391    o add CF-style coordinate variables to MNC
392      - just a first cut:  numbers are meaningless on the cubesphere and
393        missing along the T axis but otherwise it works!
394    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
395    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
396    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
397      this is based directly on what the model compute, so that the content of
398      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
399    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
400    o clean up build options files for SunOS, in particular
401      - remove -traditional from xmakedepend
402      - change -xarch=v9 to -xarch=native for f77
403      - restore use of make (not gmake)
404      - add CC=gcc if using g77
405    o changes per discussion of AM, JMC, & EH3 today:
406      - move redundant "grid" variables out of "state" -- in preparation of
407        creating proper CF-style coordinate variables and in recognition
408        that any/all grid variables can be easily copied (eg. w/NCO) from
409        the grid files into any of the other NetCDF files
410      - *always* output grid variables with MDSIO (this will eventually be
411        changed)
412      - output MNC grid file if useMNC is true
413    o every instance of _END_MASTER() has been found and replaced with
414      _END_MASTER( myThid ) in order to satisfy certain picky Sun
415      preprocessors
416    o re-arrange diagnostics pkg initialisation:
417     - allow each package to extend the available diagnostics list
418     - add some checking and fix small problems (multi-threaded, ...)
419     - new S/R diagnostics_fill (replace fill_diagnostics):
420       look through the short list of active diag. (instead of the long list)
421       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
422    
423    checkpoint57a_post
424    o this set of changes restores TAMC compatibility
425      tested for global_ocean.90x40x15 adjoint on trough
426      (what a pain)
427    
428    checkpoint57a_pre
429    o some modifs in tools/build_options for sunos
430    o call ctrl_pack for ctrl at end for optimcycle=0
431    
432    checkpoint57
433    o add horizontal bi-harmonic viscosity for vertical velocity
434      - new parameter viscA4W (defaults to viscA4)
435      - affects only non-hydrostatic code
436      - to be done: no-slip lateral boundary conditions
437    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
438    o implement Implicit Vertical advection for pTracers
439    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
440      (implemented also for implicit vertical diffusion & advection)
441    o OBCS: extend application of tracer open boundary conditions
442      to a strip beyond the boundary of width Olx/Oly
443    o add call monitor to TAF set of required calls (flow directives)
444      and include in natl_box_adjoint
445    o untangle a few ifdefs related to cost, ctrl, autodiff
446      untangel a few ALLOW_ECCO_OPTIMIZATION
447    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
448      (theta2, salt2 in ecco_cost_weights)
449    
450    checkpoint56c_post
451    o OBCS as control variables
452      - update ctrl_ad_diff.list, obcs_ad_diff.list
453      - remove balance of obcs controls from default
454      - fix index bug nobcs in ctrl_init
455      - fix dummy fields filen in ctrl_pack
456      - add dummy weights for obcs
457    o lsopt: comment out fort.94 output
458    o optim:
459      - remove unnecessary header files
460      - adjusted namelists
461      - add xerbla.F to Makefile
462    o exf:
463      - multiple modifications of exf_check_range
464      - unit change in exf_init_runoff from [m/year] to [m/s]
465    o mdsio:
466      - i/o-vector change debugLevel from debLevA to debLevB
467    
468    checkpoint56b_post
469    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
470      is called from DO_THE_MODEL_IO
471      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
472      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
473      - clean up PTRACERS_WRITE_TIMEAVE a little
474    o add another verification experiment that tests both the cfc-pkg and
475      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
476      reactive tendencies treated inline with regular timestepping
477    o testreport previously did a lousy job of comparing small numbers, so
478      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
479      implemented in the little c-progam tmp_cmpnum.c which is embedded in
480      testreport.
481    o ptracers_monitor: bug fix for MPI
482    
483    checkpoint56a_post
484    o GCHEM: finish reorganizating the package
485      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
486        (introduces another 3D-array for each passive tracer, but only if
487        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
488        gchemTendency is not needed because the timestep is done separately)
489      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
490      - GCHEM is now---more or less cleanly---separate from PTRACERS
491      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
492        so clear to me how that should be done in a general way.
493    o CFC: improve formatting of output in CFC_ATMOS
494    o PTRACERS:
495      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
496        that ALL experiments with ptracers enable can be checked. This makes
497        GCHEM_MONITOR obsolete.
498      - include a runtime parameter PTRACERS_monitorFreq that defaults to
499        monitorFreq
500      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
501    o add PTRACERS (PTR0[1-5]) to testreport output
502    o exf_check_range:
503      * default changed to .TRUE.
504      * will check values for niter0 if debLevA, every timestep if debLevB
505      * STOP in exf_check_range if 'out of range'
506      * range chosen generous to allow for potential extema
507      TBD: a version with stricter range
508           permitted range would be runtime parameters
509    o GMredi:
510      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
511      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
512      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
513    o GCHEM:
514      - move call to GCHEM_FORCING_SEP, so that it is now called before
515        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
516      - introduced a useGCHEM runtime flag and applied it everywhere.
517      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
518        this flag is now only visible within GCHEM-pkg routines.
519      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
520        be replaced by a 3D array that is computed before thermodynamics; for
521        this, the tracer ID iTracer had to be included into the parameter list
522        of ptracers_forcing
523      - set up forward_step to call gchem_forcing, that will replace
524        gchem_forcing_int in ptracers_forcing
525      - cleaning up
526    o small cleaning of exch2: remove files that are also in eesupp/src
527    
528    checkpoint56
529    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
530    o mnc: cleanup "full" files--fixes out-of-memory problem
531    o ECCO-GODAE
532      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
533      * fully merged and updated from SIO code
534        windstress sign change affects
535        - exf_inscal_[u/v]stress
536        - sign of xx_tau[u/v] adjustments
537        - signs in cost_scat
538      * ctrl_get_gen: avoid update of tau[u/v] for first few days
539      * natl_box_adjoint updated and compressed
540      * 2-level checkpoint switch added
541        (tested in EXP. 1 of natl_box_adjoint)
542      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
543    o SVD
544      * first complete, non-hacked version for SVD calculations
545      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
546        performed via direct access files admtlm_vector.it????
547        (via ctrl_[un]pack)
548      * optimcycle is used for ARPACK iteration counter
549        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
550      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
551        and add linear transforms where necessary
552      * controls are initial/final SST, SSS (can be extended; need to check
553        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
554    o mdsio: filename info to both stderr, stdout
555    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
556      from sign change
557    
558    checkpoint55j_post
559    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
560      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
561    o add consistent build directories and .cvsignore files to verification
562    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
563    o make all subroutines 30 or less characters in length for certain older
564      compilers to work (a thorough search only turns up two routines in
565      pkg/ptracers)
566    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
567      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
568    
569    checkpoint55i_post
570    o change arrays for total vertical diffusivity (2.D if explicit,
571      3.D if implicit) ; each ptracer uses its own background value.
572    o added mnc/NetCDF output capability to ocn_compon_interf
573      - added bits to verification/cpl_aim+ocn so that it can run on
574        ITRDA and other clusters without the mpirun "-wd" option
575    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
576      configuration
577    o give MNC the ability to create additional files rather than
578      exceeding a specified file size limit "MNC_MAX_FILESIZE"
579      - the default is just less than 2GB which is a practical limit
580        on many systems
581    o Compute the non-local term using either KPP vertical diffusivity (=default)
582       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
583    
584    checkpoint55h_post
585    o add verification test "vermix"
586    o remove all the *_ioinc flags and replace with the single global
587      outputTypesInclusive flag
588    o allow to set a vertical profile of vertical diffusivity for T & S
589    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
590    o useMNC moved from data.mnc to data.pkg
591    
592    checkpoint55g_post
593    o Renaming carbon AD experiments to comply with testreport conventions
594    o Updating adjoint of Held-Suarez hs94.1x64x5
595    o Fixing directives for non-ECCO forward_step, after ECCO directives
596      have been fixed to avoid recomp. of do_oceanic_phys
597      Works well for global_ocean.90x40x15,
598      but recomp. issue remains for carbon
599    o Updating adjoint output for natl_box_adjoint after
600      pkg/ecco has been modified (see taga c55d_post)
601    
602    checkpoint55f_post
603    o rename to timeave_init_fixed
604    
605    checkpoint55e_post
606    o some delicate re-shuffle of store directives to avoid one
607      extra call of do_oceanic_physics
608      affects ecco_the_main_loop.F, do_oceanic_physics.F
609      checkpoint_lev1_directives.h
610    o NB: this may break global_ocean adjoint temporarily,
611      but it is clear how to fix it. Will do later, need this now.
612    
613    checkpoint55d_post
614    o ECCO specific cost function terms (up-to-date with 1x1 runs)
615    o ecco_cost_weights is modified to 1x1 runs
616    o modifs to allow observations to be read in as
617      single file or yearly files
618    o enable to read exf forcing fields as either
619      single file or yearly files (flag useExfYearlyFields)
620    checkpoint55d_pre
621    
622    o switch between 2-level and 3-level checkpointing
623    o add ability of MNC to write local and "partial" (eg. 2D slices where
624      the full 3D field is never actually stored) arrays to NetCDF files
625      with the correct (that is, the complete multi-dimensional) set of
626      array indicies
627      - used in mom_vecinv() to write the diagFreq output
628      - tested (demonstrated) in verification/aim.5l_cs
629    o further mnc-ification
630      - add verification/lab_sea to the list with mnc setups
631      - fix undefined mnc v-names in cd_code
632      - add kpp to mnc output (both snapshot and timeave)
633    o non-hydrostatic code
634      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
635        in calc_gw.F
636      - defaults to viscAh
637      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
638        friction or Leith) in non-hydrostatic mode, as long as there is
639        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
640    o pkg/cost
641      extend simple cost functions to treat time mean quantities
642      (T,U,V) via cost_accumulate_state from cost_tile
643    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
644        be 2 times larger than the minimum size the advection scheme requires.
645        now get a perfect conservation of salt in advect_cs test-exp (updated)
646    o GGL90 (Gaspar's TKE mixed layer)
647      - add horizontal diffusion of TKE, requires exchanges in
648        do_fields_blocking_exchanges, horizontal diffusivity is zero by
649        default. In OPA there is no horizontal diffusion of TKE but the
650        mixing coefficients are computed from a horizontal average of TKE of
651        6 points or so. I think that diffusion has a little more physical
652        justification.
653      - clean up ggl90_calc in the hope of reducing memory usage (this hope
654        was in vain)
655      - mask tke-variable in ggl90_init
656    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
657    o fix biharmonic diffusion on CS-grid.
658    o more obcs stuff
659      - added obcs_external_fields_load as an alternative to the EXF-pkg option
660        for reading boundary values. This routine is called from
661        obcs_prescribe_read
662      - updated obcs_check
663      - changed sponge layer relaxation parameter units for days to seconds
664      - turned off sponge layer by default
665      - changed argument list of OBCS_CALC to myTime+deltaTclock
666      - fixed about 35 bugs in obcs_external_fields_load
667    
668    checkpoint55c_post
669    o obcs stuff
670      - new runtime flags useOBCSprescribe, useOBCSbalance
671      - re-arranged obcs_calc
672      - moved exf_getobcs to obcs_prescibe_read
673        obcs_prescibe_read is called after ORLANSKI stuff
674        and independent of it (executable can contain all).
675      - updated obcs_check
676      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
677        These may be necessary only if tangential velocities are
678        prescribed at OB, not sure, needs testing.
679    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
680      which simplifies the calls and passes the ifc check-bounds test
681    
682    checkpoint55b_post
683    o add a 2D scalar, Z location, exchange_2 routine.
684    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
685      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
686      affects advect_cs results (for the wrong reason): update output.txt
687    o use a more standard discretization for biharmonic viscosity ;
688     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
689      affects results of dome set-up: update output.txt
690    o fix gad_advection.F (CubedSphere part), back to version 1.23
691    o fix bug in mom_vi_del2uv.F (CubedSphere part).
692    
693    checkpoint55a_post
694    o merged code to
695      * prescribe/read time-dependent open boundaries
696        (works in conjunction with exf, cal)
697      * sponge layer code for open boundaries
698      * each boundary N/S/E/W now has its own CPP option
699        (healthy for the adjoint)
700    
701    checkpoint55
702    o up-to-date adjoint of previous breaks
703      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
704      - global_ocean_ebm: adjoint still needs fix (TLM ok)
705      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
706      - carbon: * remove tr1-related adjoint verification
707                * add ptracer as control variable
708    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
709      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
710    
711    checkpoint54f_post
712    o in verification/carbin/ remove experiment related to
713      ALLOW_PASSIVE_TRACER (array tr1 etc)
714      code_ad/ input_ad/ results_ad
715    
716    o add two new packages
717      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
718        + subject to optimization (memory)
719      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
720        + subject to reordering (many GOTOs in the original code)
721        + so far opps is called for every (i,j) point, and then operates in
722          the vertical; one may want to reorder the scheme in order operate in
723          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
724          fields)
725    o overhaul of IO so that we now have flags for MDSIO and/or MNC
726      - all verification tests compile and run with linux_ia32_g77
727      - defaults are compatible with current input files--nothing
728        should change if you were not previously using MNC
729      - MNC output has been added in numerous places (eg. timeave)
730        but there are still a few writes not yet do-able with MNC
731        (this is in progress)
732      - flags now allow for either/or/both use of MDSIO and MNC and
733        documentation will soon follow
734      - numerous small formatting cleanups for ProTeX
735    o add version info (via BUILD_INFO.h) to MNC and stdout
736    
737    checkpoint54e_post
738    o add two new packages
739      - pp81 (Packanowski and Philander, 1981), Richardson number and
740        stratification dependent mixing
741      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
742      - these scheme operate in a similar manner as KPP (without ghat, of
743        course), however there is only one diffusivity that is used for both
744        temperature and salinity (and passive tracers)ç
745    o add offline package
746    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
747      provided by Stephanie Dutkiewicz
748    o genmake2: add ability to search for C compilers and cleanup test output
749      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
750    
751    checkpoint54d_post
752    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
753    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
754      leading to additional shift by 5 days each year of integration
755       (i.e. leading to considerable offset over the years)
756    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
757    o start with no AB and no initial filtering (staggerTimeStep):
758      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
759    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
760      (external loading & cpl import/export stay in forward_step.F)
761    o update coupling interface to work with new staggerTimeStep
762    o change MDSIO ptracers_pickup.
763    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
764    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
765    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
766    
767    checkpoint54c_post
768    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
769      this affects (truncation error) output.txt of test-exp:
770       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
771    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
772    o change Qnet to always be the net heat flux, (+upward).
773      affects (truncation error) output of natl_box exp.: updated
774    o define the max number of passive tracers in PTRACERS_SIZE.h
775    o start to test mnc routinely in exp0
776    o add sea-ice loading (sIceLoad) as a new forcing field.
777    
778    checkpoint54b_post
779    o add testreport "-j JOBS" option for parallel builds (tested and pretty
780       impressive on Altix and Opteron systems)
781    o diagnostics can now write NetCDF files through the mnc package
782    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
783    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
784    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
785      affects (truncation error) output of lab_sea & natl_box exp.: updated
786    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
787    
788    checkpoint54a_post
789    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
790    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
791    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
792    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
793      + internal_wave (shift in writing cg2d_ini_res)
794    checkpoint54a_pre
795    
796    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
797      - modified verification/lab_sea and natl_box_adjoint accordingly
798    
799    checkpoint54
800    checkpoint53g_post
801    o prepare splitting of thermodynamics: store convect.counter in common block
802    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
803      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
804    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
805    o new parameter "nShapS": allow to treat differently S from T (nShapT)
806    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
807    o restore adjointability
808    
809    checkpoint53f_post
810    o modifications that affect AIM experiment results (update output.txt):
811      - no advection of S at top interface Nr (pkg/generic_advdiff)
812      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
813    o AIM pkg:
814      - include stability function into surf.Flux derivative relative to Tsurf
815      - calculate clear-sky radiation & surface temp. change (for diagnostics)
816    
817    checkpoint53e_post
818    o merged cylindrical coord configuration
819    o added rotating_tank experiment
820    checkpoint53e_pre
821    
822    checkpoint53d_post
823    o faulks upgraded: re-generate output.txt that have changed:
824       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
825    o Added Bryan and Lewis, 1979, vertical diffusivity profile
826    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
827    o added Sadourny discretization of Coriolis
828      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
829      - re-enabled use of omega3 (useAbsVorticity)
830    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
831      vector-invariant equations
832      - note: does *NOT* yet use same variable visc. for no-slip BC's.
833    o recoded the lateral boundary conditions for non-hydrostatic w, this time
834      hopefully without new bugs
835      - still to do: biharmonic friction for non-hydrostatic w
836    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
837    o regenerated output for global_ocean_ebm (using -ieee)
838    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
839      of mom_common/
840      - simple re-arrangement of instructions within computing loop
841    checkpoint53d_pre
842    
843    checkpoint53c_post
844    o new version of coupler for AIM+thSIce and Ocean models
845     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
846     - land: change Evaporation of snow
847     - aim with thSIce: fix bug in snow-precip.
848    o changes to calc_gw.F
849     - bug fix for w^2 term near the bottom boundary
850     - (hopefully) improve the lateral slip boundary condtions for use with
851        partial/looped cells
852      - because the bug fix changes two verification experiments anyway (exp5
853        and plume on slope), change the lateral boundary condition from half slip
854        to the value of no_slip_sides
855    o ebm package wasnt quite up to the parallel task. Fixed that.
856    o Adjoint of EBM package + verification
857      * TLM OK
858      * ADM not sufficient accuracy yet (needs further testing)
859    
860    checkpoint53b_post
861    o Commiting new energy balance model to repository
862      * package is pkg/ebm
863      * verif. is verification/global_ocean_ebm
864      * references are in ebm_driver.F
865    C      * X. Wang, P. Stone and J. Marotzke, 1999:
866    C        Global thermohaline circulation. Part I:
867    C        Sensitivity to atmospheric moisture transport.
868    C        J. Climate 12(1), 71-82
869    C      * X. Wang, P. Stone and J. Marotzke, 1999:
870    C        Global thermohaline circulation. Part II:
871    C        Sensitivity with interactive transport.
872    C        J. Climate 12(1), 83-91
873    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
874    C        Destabilization of the thermohaline circulation
875    C        by atmospheric eddy transports.
876    C        J. Climate 7(12), 1870-1882
877    o Will need long integration testing.
878    checkpoint53b_pre
879    
880    o created pkg/mom_common in preparation for variable viscosity code
881    o renamed and split ini_mnc_io
882    o pkg/land: only liquid water can diffuse or run-off
883    o AIM using land: soil wetness availability account for snow
884    o added printMapIncludesZeros to EEPARMS namelist
885    
886    checkpoint53a_post
887    o restore TAMC compatiility for exf_constants.h
888      (no usage of _d in .h)
889    o Additional storing in KPP in an attempt to fix
890      TAMC problem with adjoint of KPP code.
891      (no success...)
892      Identical code works fine with TAF.
893    o Fixed verification/natl_box_adjoint experiments.
894      Initial conditions for Experiments 4 and 5 are now
895      set to "SEAICE_initialHEFF=0", which is more reasonable,
896      and hence gives results closer to that of Experiment 2.
897      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
898    
899    checkpoint53
900    o stable checkpoint with up to date adjoint
901      TLM tests only run for 1st grdchk at the moment. Its unclear if
902      this is a code problem or a problem with resetting code for g_
903      variables that is being autogenerated wrong.
904      Otherwise:
905       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
906       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
907         are both still in chaos following their security messes.
908    
909    checkpoint52n_post
910    o various build (mostly genmake2) changes including:
911      - ability to build/run more easily within Cygwin and MacOS X
912      - more complicated Makefiles with a stronger dependence on Gnu Make
913    o pkg/seaice modifications
914      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
915        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
916        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
917      - changed proxy for geostrophic velocity and updated
918        verification/lab_sea/results/* accordingly
919      - removed ADI dynamic solver from pkg/seaice
920      - replaced all occurrences of 1/CSTICE or 1/CSUICE
921        they caused a segmentation fault under certain circumstances
922      - removed unused field WATR
923    o bug fix in exf-package:
924      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
925         now reflect that.
926    o small fixes in the cal-package:
927      - set reference date to first of January for the 'model'-calendar
928      - failing of cal_CheckDate in cal_FullDate now actually results in a
929        warning
930    o small modifications in exf-package to increase flexibility:
931      - change climtempfreeze from a constant to a runtime parameter that
932        is specified in data.exf_clim (default = -1.9)
933      - introduce runtime parameter windstressmax (default = 2.0) that is
934        specified in data.exf
935    o fix in pkg/thsice:
936      - update Evap (Tsf changes) to be consistent with Latent heat flux
937      - maintain snow precipitation unchanged (even if Tsf >=0).
938     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
939    
940    checkpoint52m_post
941    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
942      this does not change any of the results, because myIter=0 in swfrac always
943      lead to jwtype=2 (the default anyway), but the call makes little sense
944      as a default
945    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
946    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
947      atmospheric model (AIM) to use it ; add a "slab ocean" component.
948    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
949    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
950    o extending useSingleCpuIO option to work with new exch2 I/O format
951      - old-style, missing-tile I/O is still accessible by defining CPP
952        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
953    o monitor package can write to NetCDF files and/or STDOUT
954    o fix re-definition bug in MNC_GRID_INIT_ALL()
955    o doc/api_reference added
956      - a framework for building an API Reference Manual using all
957        the "protex" comments embedded in the code
958      - see pkg/generic_advdiff, pkg/mnc for examples
959    o MNC:
960      - make myThid the last argument for all subroutines
961      - new default for the grid files: NO halos
962      - add useMNC and other run-time flags
963      - separate per-file-group handling of the unlimited dimension
964      - early initialization of MNC w/ flags read at the eeboot stage
965        and lookup tables set in initialize_fixed
966      - write all MNC output to a freshly-created directory
967    o thermodynamics sea-ice (thsice) is now tested with testreport.
968    o test exp. advect_cs: use the standard cs32 grid ; update output.
969    o Added functionality to grdchk:
970      pick global i,j,k position (or nearest wet) where to perform check.
971    
972    checkpoint52l_post
973    o new land formulation:
974      a) use ground enthalpy as prognostic variable to ensure exact
975         energy conservation.
976      b) account for water temperature and for latent heat of freezing
977         in all processes (rain, run-off, ground storage)
978      c) compute surface and ground temperature implicitly.
979    o aim_v23 modification for new land model:
980      a) Treat separately land / ocean / sea-ice surface fluxes
981         to allow implicit computation of land & sea-ice surface temp.
982      b) add snow precipitation.
983    checkpoint52l_pre
984    
985    o fix problem (when 1 tile is empty) in min/max monitor.
986    o fix bug in timeAve (u,vZetatave in common block)
987    o no restoring terms under ice for pkg/seaice
988    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
989    o bug fix for pkg/seaice pickups
990    o change MNC call locations and add coordinate attributes
991    o mask vorticity at the corner ; affects global_ocean.cs output
992    o fix ini_curvilinear_grid ; test CS experiments with mpi
993    o aim.5l_cs: modify sea-ice fraction input file ; update output
994    o exf: Adding simple range check routine for exf fields after read
995    
996    checkpoint52k_post
997    o removed top-level directory "diags"
998      - we migrated these functions to pkg/timeave a long time ago
999    o fixed bug introduced in pkg/monitor
1000    o accuracy ctrlprec = 32 insuffient for gradient checks using
1001      averaged fields (I/O via cost_averages)
1002      -> use ctrl.h in active_file*.F to control I/O precision.
1003    o paramter list of CALL ADTHE_MAIN_LOOP
1004    o added initial do_the_model_io to ecco
1005    o set all ...Freq to zero after cost_final
1006      taveFreq, dumpFreq, pChkptFreq
1007    o MAIN and ECCO differentiability restored
1008    
1009    checkpoint52j_post
1010    o fix nchklev in tamc.h for global_ocean...
1011    o Bringing flow and store directives up-to-date
1012    o Really weird thing!
1013      call do_the_model_io from the_main_loop with parameters
1014      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1015      TAF places a faulty re-call of initialise_varia
1016      after cost_final call which should not be there!
1017    checkpoint52j_pre
1018    
1019    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1020      error messages
1021    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1022    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1023      debug output
1024    o modfied mdsio_writefield.F to handle non-global files under exch2
1025    o update AIM Cubed-Sphere exp (aim.5l_cs):
1026      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1027    o update AIM Equatorial Channel exp:
1028      use standard aim_v23 pkg and change the SST fields to be more realistic.
1029    o globalFile now works with exch2
1030    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1031      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1032    o limit timeave output for hi-res integrations
1033    
1034    checkpoint52i_post
1035    o removed CPP_EEOPTIONS.h from verification/*/code
1036    o updated the tiling for global_ocean_pressure
1037    checkpoint52i_pre
1038    
1039    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1040      the old pkg/aim).
1041    
1042    checkpoint52h_pre
1043    o shortened offending lines in exch2_send_rx?.template
1044    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1045    o genmake2: add build & execute test for NetCDF code
1046    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1047      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1048    o added useSingleCPUIO flag to monitor.F and mon_out.F
1049    o added temporary hack for sea-ice dynamics on the cube:
1050      metric terms are ignored and it is assumed that
1051      there is no sea-ice on cube faces 1, 2, 4, and 5.
1052    
1053    checkpoint52f_post
1054    o added exch2 cube routines to pkg/exch2
1055    o modified hs94.cs-32x32x5 to use it
1056    o added new grid files to hs94.cs-32x32x5
1057    checkpoint52f_pre
1058    
1059    checkpoint52e_post
1060    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1061      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1062    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1063      to work with implicit vertical advection and AB ;
1064    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1065    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1066     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1067    checkpoint52e_pre
1068    
1069    o fix bug in impldiff when Nr=1 or Nr=2.
1070    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1071    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1072    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1073      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1074    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1075    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1076    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1077    
1078    checkpoint52d_post
1079    o re-tiled many expts to allow comparison in multi-processor mode
1080      - updated output accordingly
1081      - changed hs94.128x64x5 to use intial T from file rather than use the
1082        random number generator
1083    o add infrastructure in model routines for fizhi and gridalt packages
1084    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1085    o changes to permit hi-res, cubed-sphere, configuration
1086      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1087      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1088      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1089        of surface winds for the cube
1090      (A verification experiment, based on global_ocean.cs32x15, but with
1091       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1092       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1093       complete with example surface forcing files and matlab scripts to look
1094       at the output and compare it with that of global_ocean.cs32x15.)
1095    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1096       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1097       to conform to the common rule.
1098    o check-in the first version of the coupler + interfaces for multi-components
1099       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1100       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1101       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1102       - ocean and atmos. share the same horizontal grid (no interpolation).
1103       - exchanges between component and coupler is done in forward_step
1104    o new verification experiment, cpl_aim+ocn:
1105       coupled ocean - AIM atmosphere on cs32 grid.
1106    
1107    checkpoint52d_pre
1108    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1109    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1110    
1111    checkpoint52c_post
1112    o Fixing OPTIONS files for use of exf:
1113      - ALLOW_ECCO not needed
1114      - ECCO_CPPOPTIONS.h should not be included from
1115        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1116        as has been the case in the past
1117      - All cal/exf related options are currently set in
1118        single header file. Should remain so until we
1119        agree on a consistent new policy.
1120    o Removed all CPP options for cal package.
1121      cal has no more CPP options.
1122    o modified STOREs in GAD_ADVECTION
1123    o corrected key comp. for passkey
1124    
1125    checkpoint52b_post
1126    o new version: "thsice" of thermodynamic sea-ice pkg:
1127     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1128     - modify fluxes but do not change theta directly;
1129     - light cleaning of bulk_force pkg (still needed with thsice).
1130     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1131       + output_thsice.txt to test thsice & bulk_force pkgs.
1132    o put back grid & coriolis monitor output.
1133    checkpoint52b_pre
1134    
1135    o call "do_the_model_io" at the beginning (=> dump initial state)
1136    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1137    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1138      (need info on NUMBER_OF_PTRACERS)
1139    o missing PTRACERS headers in some routines
1140    o default tamc.h in pkg/autodiff supposed to crash
1141      to ensure proper customization
1142    
1143    checkpoint52a_post
1144    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1145      - moved surfaceTendencyTice from pkg/seaice to main code
1146      - subroutine FREEZE_SURFACE now limits only surface temperature
1147        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1148        => new output.txt for global_ocean.cs32x15 & global_with_exf
1149      - keep the old version of FREEZE for backward compatibility;
1150        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1151      - corresponding modifs for TAF directives
1152    o added surface flux output variables to TIMEAVE_STATVARS
1153    o time-averaged output for pkg/ptracers
1154    o fix problem with ECCO-related divided adjoint
1155      snapshot file was missing some ad-variables,
1156      but no warning issued by TAF
1157    
1158    checkpoint52a_pre
1159    o some bug fixes for #undef REAL4_IS_SLOW
1160    
1161    checkpoint52 = ecco_c52_e35
1162    o after testing adjoints of checkpoint51u_post
1163    
1164    checkpoint51u_post
1165    o this is the post-merge tag of the ecco-branch
1166      (needs another clean checkout and re-testing)
1167    o various natl_box_adjoint configs and results
1168      but no input fields
1169    o obcs adjoint not yet merged!
1170    o adding ECCO global 1x1 and 2x2 degree configs
1171    o updated/extended some store directives for seaice
1172    o pkg/ecco now containes ecco-specific part of cost function
1173    o top level routines the_main_loop, forward_step
1174      supersede those in model/src/
1175      previous input data.cost now in data.ecco
1176      (new namelist ecco_cost_nml)
1177    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1178    
1179    checkpoint51t_post
1180    o this is the pre-merge tag of the ecco-branch
1181    
1182    checkpoint51s_post
1183    o cleanup: removed various obsolete #define-s
1184    o pkg/grdchk
1185      - renamed 'ph-grd 3' to 'grad-res'
1186      - merged from ecco-branch
1187        (remaining bug fixes for obcs gradient checks)
1188      - additional high-precision output for testreport
1189        (grep for 'precision_grdchk_result')
1190    
1191    checkpoint51r_post
1192    o cleaned up or removed CPP_OPTIONS.h files
1193    o updated results for some of the tests to reflect the new
1194      optfiles (-ieee: -O0 instead of -O3)
1195    
1196    checkpoint51q_post
1197    o cd_code:
1198      - moved cd_scheme.F -> cd_code_scheme.F
1199      - separate read_checkpoint from cd_code_ini_vars.F
1200      - separated cd_code part from write_checkpoint
1201      - updated AD_SOURCE, generated .flow
1202      - added CD_CODE_VARS.h to the_main_loop
1203      - Moving cd_code specific store dir.s to pkg/cd_code
1204    o ctrl package totally restructured
1205      - pack/unpack now optional and decoupled from
1206        xx_/adxx_ I/O
1207      - ctrl_pack/unpack cleaned
1208        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1209      - confined inclusion of AD_CONFIG.h to where necessary.
1210    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1211    
1212    checkpoint51p_post
1213    o create initial cd_code package
1214      - WARNING: the initialization of fields within packages
1215        is broken because INI_FIELDS (where READ_CHECKPOINT is
1216        called) is called *before* PACKAGES_INIT_VARIABLES.
1217        This seems to be backwards since
1218        1) its important to initially zero the entire field including
1219           the "halo" region
1220        2) zeroing needs to be done *before* reading pickup info
1221           and the pickup call might or might not happen in any
1222           particular run
1223      - this needs an overhaul for R2
1224    o cleanup verification/*/code/GMREDI_OPTIONS.h
1225    o cleanup testreport
1226    
1227    checkpoint51o_post
1228    o bringing AD-related verif's up to date with genmake2
1229      - carbon/
1230      - global_ocean.90x40x15/
1231      - hs.94.1x64x5/
1232      - (front_relax/ )
1233    o (more) consistent directory structure for AD-related verif.'s
1234    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1235    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1236    o bug fix in find_alpha.F for MDJWF:
1237      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1238        change rho -> rho-rhoConst
1239      - replace call find_rho to find_rhonum
1240    o initialisation of rFlx extended to full array (required by TAF)
1241      and shifted to thermodynamics
1242    o removed PTRACERS.h in ptracers routine
1243    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1244    o Correcting initialisations for fVerU, fVerV.
1245    o helping TAF to recognize dependency on kUp for
1246      fVerU, fVerV
1247    o Replacing delZ by delR in pkg/ctrl/
1248    checkpoint51o_pre
1249    
1250    o undid all of cp51 pending some cleanups and discussion
1251    o added the [#include "AD_CONFIG.h"] statement to all files that need
1252       it for adjoint/tl #defines
1253     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1254     o removed tools/genmake since it no longer works
1255    
1256    checkpoint51n_post
1257    o modifications to make FREEZE flux visible to pkg/kpp
1258      - moved surfaceTendencyTice from pkg/seaice to main code
1259      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1260      - subroutine FREEZE now limits only surface temperature
1261        (this means new output.txt for global_ocean.90x40x15,
1262         global_ocean.cs32x15, and global_with_exf)
1263    o added surface flux output variables to TIMEAVE_STATVARS
1264    
1265    checkpoint51n_pre
1266    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1267    o added [#include "AD_CONFIG.h"] to all files that use the following
1268      defines:
1269      - ALLOW_ADJOINT_RUN
1270      - ALLOW_TANGENTLINEAR_RUN
1271      - ALLOW_ECCO_OPTIMIZATION
1272    
1273    checkpoint51m_post
1274    o incorporating changes to get TAMC/TAF working in genmake2
1275      - added new TAMC/TAF targets to the Makefile
1276      - various cleanups related to package handling
1277      - these changes should have no impact on the forward model
1278    
1279    checkpoint51l_post
1280    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1281     - faster algorithm for cal_addtime.F
1282     - higher precision arithmetic, where needed
1283     - pkg/exf *startdate variables changed from calendar date to
1284       model integration time
1285    
1286    checkpoint51l_pre
1287    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1288    o enable to apply restoring on S & T only in a latitude band.
1289    o update output (external_forcing_surf modif. change truncation errors)
1290       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1291    
1292    checkpoint51k_post
1293    o change default to: useNHMTerms=.FALSE.
1294     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1295       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1296     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1297        exp1, ideal_2D_oce
1298     - change data file of oceanic exp (leave the results unchanged for now)
1299       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1300    o set gravitySign automatically according to the vertical coordinate used
1301      (and change sign: back to "logical" value: +1 when R increases downward)
1302    o added an include barrier to the default CPP_OPTIONS.h and
1303      removed the #include "PACKAGES_CONFIG.h" from it
1304    o fix a bug in mom_fluxform (from chk51j_post)
1305    
1306    checkpoint51j_post
1307    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1308    o adjusted some flow directives (dynamics, thermodynamics)
1309    o added cubed-sphere case to test cost function
1310    o heckpoint_lev?_directives.h now include
1311      pkg-specific directives, whenever those are enabled.
1312    o Moving pkg-specific flow directives to corresponding pkg
1313      Moving pkg-specific differentiation list to corresponding pkg
1314      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1315      ---> conventions are
1316           - pkg_ad.flow
1317           - pkg_ad_diff.list
1318           - pkg_ad_check_lev?_dir.h
1319    
1320    checkpoint51i_post
1321    o merge of the branch-genmake2
1322      - knowingly breaks the older genmake
1323      - automatic generation of all ALLOW_${PKG_NAME} defines
1324      - new testreport supersedes older testscript
1325    o large number of package inclusion and header cleanups
1326    checkpoint51i_pre
1327    
1328    o new output for adjoin of global ocean vector invariant
1329    o fix for checkpoint of thermodynamic seaice and bulk_force
1330    o Steph gchem various cleanups
1331    
1332    checkpoint 51h_pre
1333    o fixed some single quotes
1334    o modify gchem pkg to be more versatile
1335    o modifications to clean up dic pkg
1336    o add pkg/cfc
1337    
1338    checkpoint51g_post
1339    o provide links for ARPACK and ADM*TLM
1340    o start removing verification/vero/
1341    o update AD-related stuff
1342      (in particular some IF-statements in model/src/ routines)
1343    o adding to verification/global_ocean.90x40x15/ adjoint of
1344      vector invariant setup
1345    
1346    checkpoint51f_post
1347    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1348    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1349      of tracer Green's fucntions for ocean inversion project.
1350    
1351    checkpoint51f_pre
1352    o Added on-the-fly spatial interpolation capability
1353        "USE_EXF_INTERPOLATION" to pkg/exf.
1354      - This is a temporary Cartesian-grid hack until
1355        the super-duper ESMF coupler becomes available.
1356      - See verification/global_with_exf/README for usage example.
1357      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1358        flags and modified pkg/seaice accordingly.
1359    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1360        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1361        non-local transport term.
1362    
1363    checkpoint51e_post
1364    o pkg/mom_vecinv:
1365      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1366      - add time-ave diagnostic of vorticity advection.
1367    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1368    o atmospheric geopotential: - include water vapor effect;
1369                                - use p^kappa in p* scaling.
1370    o land pkg: read initial state from files.
1371    o AIM : add stratospheric drag in the upper level
1372    
1373    checkpoint51d_post
1374    o change function ILNBLNK (=> last non-blank char.) to return zero
1375      (instead of the string length) when the string. char is empty
1376    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1377    o modif's to restore TAMC compatibility
1378      - avoid "_d" constructs in PARAMETER declarations
1379      - avoid interrupting lines by comment lines
1380    o Use cluster local disks for purely local I/O
1381      vs. globally visible disks needed for ctrl stuff
1382      (merged from ecco-branch)
1383      - new active_file_loc... and mdsio_..._loc routines
1384      - affected packages: autodiff, ctrl, grdchk, mdsio
1385    
1386    checkpoint51c_post
1387    o introducing integer flag debugLevel
1388      - debLevZero: suppress all output
1389      - debLevA: standard
1390      - debLevB: equivalent to current debugMode=.TRUE.
1391    o introducing pathname variable mdsioLocalDir for mdsio
1392      that can be specified at runtime
1393      (relevant for cluster I/O to local disk)
1394    `
1395    >>>checkpoint51b_post
1396    adjoint of ptracers
1397    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1398    o extended state in checkpoint_lev?, etc.
1399    o alternative ctrl/cost with tr1 or ptracer
1400    o new comlev1_bibj_ptracers
1401    o new ptracers.flow
1402    o made ptracers_forcing same as external_forcing_s
1403    o added verification for adjoint with ptracers
1404      - adm. grdchk fail so far
1405      - tlm. grdchk OK
1406      - checked tapelev/comlev recomputations: OK
1407    <<<checkpoint51b_pre
1408    
1409    checkpoint51a_post
1410    o added code for biogeochemistry package
1411      - new pkgs: dic, gchem
1412      - new subroutine in ptracers
1413    o modify code for biogeo packages
1414      - in model/src and pkg/ptracers
1415    
1416    checkpoint51
1417    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1418      - autodiff, ctrl, exf, grdchk, seaice
1419      kept separate packages
1420      - cost, ecco, obcs
1421    o updating verification/internal_wave, verification/lab_sea
1422      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1423    
1424    checkpoint50i_post
1425    o Preparing next differentiable checkpoint and sync
1426      of MAIN vs. ecco-branch
1427      - 1st step: this one is differentiable
1428      - 2nd step: next(! not this) checkpoint will have updated packages
1429                  from ecco-branch)
1430    
1431    checkpoint50h_post
1432    o new package "land": provide surface BC for AIM.
1433    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1434    o AIM: use true log-P extrapolation for near surface temp (= as in
1435        F.Molteni paper) ; update aim.5l_cs output.
1436    o New variable in PARM03 for more flexible pickups
1437    o somewhat cleaned package initialisation sequence for
1438      ctrl/ cost/ ecco/ in packages_... routines
1439    
1440    checkpoint50g_post
1441    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1442      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1443      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1444        made the default because of faster convergence than ADI
1445    
1446    checkpoint50f_post
1447    o exf totally restructured
1448      - replaced all exf_set_ routines by one generic exf_set_gen.F
1449        and made sure it's still differentiable
1450      - split exf_getffields.F into new exf_bulkformulae.F
1451      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1452      - updated adjoint/makefile and relevant verif. accordingly
1453    
1454    checkpoint50f_pre
1455     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1456          + change Evap over land. (update aim.5l_cs output)
1457     o added missing .cvsignores and made uniform across expts
1458     o changed configuration of tidal_basin_2d expt
1459     o added pkg/debug functions for tracing code in fatal crashes
1460     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1461     o new fn in pkg/monitor to stop model if solution grows too big
1462     o removed lots of single quotes from comments
1463    
1464    checkpoint50e_post
1465    o make KPP work with PTRACERS
1466     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1467       nearly a copy of kpp_transport_s
1468     - there is no analogue to SurfaceTendencyS, so I have to use
1469       gPtr(of the surface layer) instead
1470    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1471    checkpoint50e_pre
1472    
1473    checkpoint50d_post
1474    o change kpp output from multiple-record state files to single-record state
1475      files analogous to write_state.F
1476    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1477      analogous to the cg2d-related output.
1478    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1479      so that writing to internal file fn (with length 512) fails.
1480    checkpoint50d_pre
1481    
1482    checkpoint50c_post
1483    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1484    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1485    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1486    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1487    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1488    
1489    checkpoint50c_pre
1490    Merging from release1_p13:
1491    o bug fix for pkg/seaice dynamic solver
1492    o Added SEAICE_initialHEFF to pkg/seaice
1493    
1494    checkpoint50b_post
1495    o store u*,v* in gU,V instead of in guNm1,gvNm1
1496    o in order to put the momForcing out of the Adams-Bashforth:
1497      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1498      to timestep.F
1499    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1500    o re-generate output for highly sensitive test-exp:
1501       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1502    
1503    checkpoint50b_pre
1504    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1505  o corrected CPP option mismatch in exf_Bulk... functions for case  o corrected CPP option mismatch in exf_Bulk... functions for case
1506    #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP    #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1507    

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