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revision 1.127 by adcroft, Thu Jan 30 18:35:42 2003 UTC revision 1.579 by jmc, Sun Nov 6 23:04:38 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 Allow to apply AB on T,S rather than on AB(gT,gS):
8     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
9     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
10       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
11     - need a "clever" read_pickup to restart from the other AB formulation
12    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
13    o remove some unused variables (reduces number of compiler warnings)
14    
15    checkpoint57w_post
16    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
17                 fix the singleCpuIO RS version of MDSWRITEFIELD
18       and add a WARNING if using globalFiles=T with multi-processors.
19    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
20      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
21    o tracer advection scheme:
22      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
23       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
24       was not very convenient).
25      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
26       (further tests needed for the implicit DST & Flux-Limiter schemes).
27    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
28      and sRef for convenience, handy, when you want to initialize
29      ptracers in a large domain with a constant non-zero value. Also,
30      untangle ptracers_init.F a little.
31    
32    checkpoint57v_post
33    o change dome exp. to use variable viscosity in side-drag terms.
34    o remove all the files from the cfc_offline test since they are now
35      incorporated into tutorial_cfc_offline which has been producing
36      identical results for a few days of testing
37    o add new parameter: sideDragFactor to enable half-slip-side BC
38      and change side-drag S/R to use viscosity from mom_calc_visc
39      (can switch back by setting sideDragFactor=0.); affects results at
40      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
41       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
42    o vorticity & strain are now computed without masking, to account for
43      no-slip-side BC in variable viscosity calculation ; mask is applied
44      anyway later on, before computing advection/coriolis terms.
45    o modify exp4 to test new obcs support for reading from external files
46      and for passive tracers
47    o fix behavior of ptracers_monitor when monitor output is written to a
48      netcdf-file; still not independent of monitor.F (writes in the same
49      file).
50    o change default value of tRef (put a uniform, meaningful value for ocean
51      & atmos) and initialize sRef (was missing, as Martin mentioned).
52    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
53      to be proportional to enstrophy dissipation length.  Thus,
54       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
55      This is now consistent with Smagorinsky and with the manual.
56    
57    checkpoint57u_post
58    o OBCS and PTRACERS: add open boundary support for passive tracers
59      - either use homogenous (pseudo) v.Neumann conditions or prescribe
60        OB-values from file; this is not different from the way theta and salinity
61        are treated
62      - however, Orlanski-radiation conditions are not supported, and the model
63        will stop if you use pTracers and Orlanski at the same time.
64      - beefed up the rountine obcs_external_fields_load: now only those open
65        boundary values are overwritten with values from files for which there
66        are really files, otherwise the OB-fields remain untouched. This makes
67        it possible to use different OBs at different ends of the domain (as
68        with EXF)
69    o reduce number of exch calls in shap_filt (s2).
70    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
71      truncation level) 4/5 MLAdjust test results (11&12 digits match).
72    
73    checkpoint57t_post
74    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
75    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
76      same truncation, independent of the face number: affects affects several
77      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
78    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
79      note that biharmonic viscosity + no-slip was not tested in any experiment.
80    o fix bug in non-linear free-surf side-drag ; generate new output for
81      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
82    o make mnc honor the writeBinaryPrec flag for most kinds of output
83    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
84    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
85      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
86    o add brackets in multi-terms sum to get same truncation, independent of
87      the face number (manage to get exactly same value of gU,gV at the cs-edge)
88      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
89    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
90      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
91      a maximum grid-scale Reynolds number.  Also, changes all length calculations
92      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
93      Suggested values of viscosity parameters found in mom_calc_visc.
94      Many new viscosity diagnostics available.
95    
96    checkpoint57s_post
97    o Add clearing-house for viscosity calculations, mom_calc_visc and
98      correct numerous bugs in LeithD and Smagorinsky discretizations.  
99      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
100      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
101      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
102      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
103      The Strain-Tension form is now called with useStrainTensonVisc=.true.
104      ViscAhStrain and viscAhTension are now retired.
105    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
106    o In response to JMC's bug report, genmake2 now ignores any soft-links
107      that it finds in the *current* directory when searching for files.
108      Soft-links found in any other source directories will still work as
109      they did before.
110    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
111      a C routine to unlimit the stack size
112    o mnc-ify pkg/aim snapshot vars
113    o mnc-ify pkg/land as requested by Daniel
114    o various changes to mnc including:
115      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
116      - output can now be grouped so that all files within a group
117          change the ITER portion of their names in lock-step together
118      - can now read ("global") PER-FACE (in addition to PER-TILE) files
119          and works with both EXCH1 and EXCH2 (but needs more testing)
120      - writing works for all verification test cases w/ g77 on Linux
121    
122    checkpoint57r_post
123    o make MNC variable initialization happen earlier
124    o add diagnostics for (almost) each term of the momentum Eq.
125    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
126    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
127    o remove MINIMAL_TAVE_OUTPUT option ;
128      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
129    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
130      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
131    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
132    o add time-dependent SST, SSS control
133    o cost terms in ecco/ modularized (new cost_generic.F)
134    o cost_averages routines are modularized (new cost_averagesgeneric.F)
135    o new infrastructure for seaice model vs. obs misfits in seaice/
136      * driver from the_main_loop.F is seaice_cost_driver.F
137      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
138      * gradient check in Exp. 6a of natl_box_adjoint/
139    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
140      (see README file)
141    
142    checkpoint57q_post
143    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
144    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
145      - bug was reported by Jean-Michel and Ian Fenty
146    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
147      update exp. cpl_aim+ocn output.
148    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
149      Needed for high-res. runs with large global files
150      to be able to limit tapelev size
151    o Changed some tests for adjoint:
152      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
153      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
154      * global_ocean.90x40x15/ back to default 3-level checkpointing
155    o Modifications to enable scripted COMMON to MODULE conversion
156      * verification/OpenAD/code/ has necessary scripts and description;
157      * converts, compiles and runs successfully;
158    
159    checkpoint57p_post
160    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
161    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
162      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
163    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
164    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
165      (was already the case for dissipation with mom_vecinv,
166       and also the case for grad.PhiHyd when staggered-timeStep)
167      This will allow to put dissipation out-off the AB time-stepping.
168     Unfortunately, affects truncation error. Update output of exp. that "fails"
169      (cg2d matching number) and leave the others for later: front_relax(10),
170      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
171      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
172    
173    checkpoint57o_post
174    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
175      (2) its ready to be documented during the 20050801 DocFest
176    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
177      for ideal_2D_oce and lab_sea on linux_ia32_g77
178    o set to #undef CTRL_SET_OLD_MAXCVARS_30
179      in global1x1_tot/code_seaice_adj to access indices 32, 33
180      (worth another tag)
181    
182    checkpoint57n_post
183    o adding precip control xx_precip 32
184    o adding swflux control xx_swflux 33
185    o Replacing 10 forcing penalty cost routines by 1 generic.
186    o Implementing partitioning in time-mean and variable adjustment
187      for atmos. state.
188    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
189    o in natl_box_adjoint:
190      * updated exp 1 to 10
191        (but does not have time-mean vs. variable split results yet)
192    o updated global1x1/*_seaice_adj/
193      to incorporate latest changes
194    o enable useSingleCpuIO for mdsio vector routines
195      (applies in particular to tapelev I/O)
196    o removed inefficient K-loop in all active_file*control*.F
197    
198    checkpoint57m_post
199    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
200      and advect_cs (use EXCH-2 and standard cs-32 grid files).
201    o pkg/exch2: filling of face-corner halo regions is optional
202      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
203    
204    checkpoint57l_post
205     tag before updating tutorials (pre-release-2)
206    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
207       for output and interpolation of input fields onto model grid)
208    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
209       Affects results of exp. rotating_tank ; update output.txt.
210    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
211          and taking the square quantity and/or using a fraction-weight field.
212    o fix aim_diagnostics_init.F mate numbers.
213    o add mnc output capability to diagnostics/diagstat and update
214      our cvsignore files for the ACSII output generated
215    
216    checkpoint57k_post
217    o lab_sea now uses diagnostics package and provides a suite of
218      new EXF diagnostics output.
219    
220    checkpoint57j_post
221    o exf
222      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
223        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
224        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
225      * extended diagnostics output
226        - now includes all EXF variables
227        - hs, hl moved to common block
228        - separate S/R for diagnostics, called after ctrl vector is added
229        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
230        - EXFqnet contains true Qnet (i.e. includes qsw)
231      * updated verif. lab_sea, global_with_exf
232      * Rearranging hflux (exf_mapfields -> exf_getforcing)
233        to ensure that diagnostics sees a true EXFqnet
234    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
235    o diagnostics pkg: change pointers so that 1 diagnostic can be used
236      several times with different frequencies.
237    o mnc-ify the thsice package as requested by Daniel Enderton
238      - the monitor--MNC output needs work
239      - many attributes need to be added (most are currently blank)
240    o mnc-ify theaim_v23 package as requested by Daniel Enderton
241      - many attributes need to be added (most are currently blank)
242    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
243    o add Sadourny like discretization to the 4th.O vorticity advection scheme
244    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
245      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
246         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
247    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
248     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
249    
250    checkpoint57i_post
251    o Diagnostics package was changed: diagnostic allocation is now deactivated
252      by setting an empty file name in the namelist (used to be by setting 0 frequency)
253    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
254      add 1rst Order upwind vertical Shear.
255    o add a quick fix for A/B checkpointing in OFFLINE mode
256    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
257      end-run around the C/Fortran linking horror in eesup/src/timers.F
258    o added pkg/runclock: allows user to terminate run based on wall clock
259    o added non-hydrostatic scaling parameter: nh_am2
260    o pkg/my82: futile attempt to make results compiler-independent by adding
261      some "_d 0", etc. no effect.
262    o for mnc output, fill the 'T' coordinate var with myTime and create a
263      separate 'iter' variable for iteration count
264    o pkg/diagnostics:
265      add new capability: output of Global/Regional & per-level statistics ;
266      tested against monitor output (including land & thSIce) on various exp.
267    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
268    
269    checkpoint57h_done
270      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
271      data.diagnostics, data.gchem, data.ptracers) is done.
272    
273    o pkg/diagnostics: prepare for Global/Regional statistics.
274      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
275    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
276      and rename it: DIFFERENT_MULTIPLE
277    
278    checkpoint57h_post
279    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
280    o pkg/diagnostics: change output frequency, now in seconds (instead
281      of Nb of iterations). This requires to change data.diagnostics.
282    checkpoint57h_pre
283    
284    o in mnc, let the user create the output dir if both mnc_outdir_date
285      and mnc_outdir_num are false
286    o add fflags() to pkg/diagnostics which allows one to specify, on a
287      per-file basis, the file precision [default behavior is unchanged]
288    o added diagnostics to pkg/kpp, including computation of mixed layer
289      depth based on a temperature/density criterion
290    o updated verification/natl_box to test the new pkg/kpp diagnostics
291    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
292    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
293    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
294      not mnc -- this mistake was found by JMC and is now corrected
295    
296    checkpoint57g_post
297    o add Adams-Bashforth 3rd Order time stepping:
298      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
299      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
300    checkpoint57g_pre
301    
302    o make lambda[Theta,Salt]ClimRelax spatially varying
303      (default remains spatially uniform constant based on tau)
304    o added new control variables
305      * init. uVel, vVel, etanN
306      * lambda[Theta,Salt]ClimRelax
307    o separate masks used for ctrl_pack/unpack 'from write_grid' output
308      (suggested by G. Forget)
309    
310    checkpoint57f_post
311    o add parameter "baseTime" = model base time = time at iteration zero
312      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
313      account for baseTime shift
314    o move Coriolis arrays from PARAMS.h to GRID.h
315    checkpoint57f_pre
316    
317    o mnc-ifying the seaice package
318    o introduced an alternative length scale calculation for use in the limiting
319      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
320    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
321    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
322      as well as grad(vort3).  Made it compatible with both approximate form
323      for the cubed sphere and full form of these gradients.  Added flag
324      useFullLeith to select between approximate and full form.  
325    o add "d0" in getcon.F to reduce differences between compilers/platforms
326      update output.txt of exp. fizhi-gridalt-hs
327    o change port_rand funtion to allow to set the seed.
328    o fix obscure MNC bug involving conversion between reals and integers
329      - it caused no problems with certain (eg. gcc, ifc) compilers but the
330        new version is now more standards-compliant
331    o adjoint-related modifications
332      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
333      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
334      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
335    
336    checkpoint57e_post
337    o Adding eddy stress controls a la Ferreira et al.
338    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
339    
340    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
341      update output.txt of exp. fizhi-gridalt-hs
342    o add more "Z" dimensions and associated coordinate vars to MNC
343    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
344    o parameter calendarDumps: when set, approximate months (30-31 days) and years
345      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
346      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
347      months and years.  Requires pkg/cal.
348    o diagnostics: add pickup functionality
349      - off by default for backwards compatibility
350      - current version only uses MDSIO -- MNC will be added
351    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
352    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
353    
354    checkpoint57d_post
355    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
356    o modify verification/ideal_2D_oce so that it tests the creation of mnc
357      output from the diagnostics package
358    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
359    o make genmake2 more portable by using ".$FS" instead of ".f" for more
360      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
361    o add coordinate variables to the MNC output from the diagnostics package
362    o change MNC-flags default value: true when useMNC=TRUE
363    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
364      the ability (off by default) to read the grid information using MNC
365    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
366    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
367    o do snap-shot diagnostics at the middle of the time-interval (instead of
368      at the end).
369    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
370      new test for AIM with thSIce + slab-ocean
371    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
372    o move state variable diagnostics to the beginning of the time step ;
373      (note: still needs some work specially for snap-shot diagnostics)
374      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
375    
376    checkpoint57c_post
377    o Change testing option (-ieee) to get closer agreement between g77 & ifort
378    o generate new output.txt files on faulks with g77 & the new -ieee option
379    checkpoint57c_pre
380    
381    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
382      update output.txt of exp. global_ocean.90x40x15
383    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
384      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
385    o add saltFlux(+File) forcing capability with periodicExternalForcing
386    o allow to use pkg diagnostics for GM-Redi & ThSIce output
387    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
388    o improvements for the MNC output from DIAGNOSTICS:
389      - correct handling of the unlimitied dimension
390      - all dims now have associated coordinate variables
391      - variables located at U, V, and Corner ("Z") points are now written
392        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
393        *all* data points are output
394    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
395    o added pkg/seaice/seaice_monitor.F
396    o mdsio_readfield.F can now read files visible only to master MPI process.
397    o pkg/seaice: some test code for ice-modified ocean stress
398    o exf_getffields interpolation defaults to bilinear for all scalar forcing
399      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
400      spurious negative numbers for precipitation and humidity.  Will cause
401      some small numerical differences for integrations using pkg/exf/exf_interp.F.
402    o pkg/ctrl/
403      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
404        May be enabled via doPackDiag
405      *  introduce z-scaling of
406         + gradient (doZscalePack) and
407         + control (doZscaleUnpack)
408    o pkg/mdsio/
409      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
410      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
411    
412    checkpoint57b_post
413    o simplify options in diagnostics_fill arguments (remove weird combinations)
414    o fix MNC coordinate variables so that they now contain per-face index
415      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
416      general, EXCH2 grids are only aligned to a "local" coordinate system
417    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
418    o Implement instantaneous output within pkg diagnostics:
419      setting a negative frequency in data.diagnostics produces
420     "snap-shot" output (as opposed to time-average if freq > 0)
421    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
422      NOTE: change ptracer diagnostics name: use 2 characters to work with
423            more than 9 tracers. Add also diagnostics of advect & diffus flux.
424    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
425      becomes the coordinate variable for the 'T' dimension
426    o add CF-style coordinate variables to MNC
427      - just a first cut:  numbers are meaningless on the cubesphere and
428        missing along the T axis but otherwise it works!
429    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
430    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
431    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
432      this is based directly on what the model compute, so that the content of
433      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
434    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
435    o clean up build options files for SunOS, in particular
436      - remove -traditional from xmakedepend
437      - change -xarch=v9 to -xarch=native for f77
438      - restore use of make (not gmake)
439      - add CC=gcc if using g77
440    o changes per discussion of AM, JMC, & EH3 today:
441      - move redundant "grid" variables out of "state" -- in preparation of
442        creating proper CF-style coordinate variables and in recognition
443        that any/all grid variables can be easily copied (eg. w/NCO) from
444        the grid files into any of the other NetCDF files
445      - *always* output grid variables with MDSIO (this will eventually be
446        changed)
447      - output MNC grid file if useMNC is true
448    o every instance of _END_MASTER() has been found and replaced with
449      _END_MASTER( myThid ) in order to satisfy certain picky Sun
450      preprocessors
451    o re-arrange diagnostics pkg initialisation:
452     - allow each package to extend the available diagnostics list
453     - add some checking and fix small problems (multi-threaded, ...)
454     - new S/R diagnostics_fill (replace fill_diagnostics):
455       look through the short list of active diag. (instead of the long list)
456       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
457    
458    checkpoint57a_post
459    o this set of changes restores TAMC compatibility
460      tested for global_ocean.90x40x15 adjoint on trough
461      (what a pain)
462    
463    checkpoint57a_pre
464    o some modifs in tools/build_options for sunos
465    o call ctrl_pack for ctrl at end for optimcycle=0
466    
467    checkpoint57
468    o add horizontal bi-harmonic viscosity for vertical velocity
469      - new parameter viscA4W (defaults to viscA4)
470      - affects only non-hydrostatic code
471      - to be done: no-slip lateral boundary conditions
472    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
473    o implement Implicit Vertical advection for pTracers
474    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
475      (implemented also for implicit vertical diffusion & advection)
476    o OBCS: extend application of tracer open boundary conditions
477      to a strip beyond the boundary of width Olx/Oly
478    o add call monitor to TAF set of required calls (flow directives)
479      and include in natl_box_adjoint
480    o untangle a few ifdefs related to cost, ctrl, autodiff
481      untangel a few ALLOW_ECCO_OPTIMIZATION
482    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
483      (theta2, salt2 in ecco_cost_weights)
484    
485    checkpoint56c_post
486    o OBCS as control variables
487      - update ctrl_ad_diff.list, obcs_ad_diff.list
488      - remove balance of obcs controls from default
489      - fix index bug nobcs in ctrl_init
490      - fix dummy fields filen in ctrl_pack
491      - add dummy weights for obcs
492    o lsopt: comment out fort.94 output
493    o optim:
494      - remove unnecessary header files
495      - adjusted namelists
496      - add xerbla.F to Makefile
497    o exf:
498      - multiple modifications of exf_check_range
499      - unit change in exf_init_runoff from [m/year] to [m/s]
500    o mdsio:
501      - i/o-vector change debugLevel from debLevA to debLevB
502    
503    checkpoint56b_post
504    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
505      is called from DO_THE_MODEL_IO
506      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
507      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
508      - clean up PTRACERS_WRITE_TIMEAVE a little
509    o add another verification experiment that tests both the cfc-pkg and
510      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
511      reactive tendencies treated inline with regular timestepping
512    o testreport previously did a lousy job of comparing small numbers, so
513      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
514      implemented in the little c-progam tmp_cmpnum.c which is embedded in
515      testreport.
516    o ptracers_monitor: bug fix for MPI
517    
518    checkpoint56a_post
519    o GCHEM: finish reorganizating the package
520      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
521        (introduces another 3D-array for each passive tracer, but only if
522        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
523        gchemTendency is not needed because the timestep is done separately)
524      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
525      - GCHEM is now---more or less cleanly---separate from PTRACERS
526      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
527        so clear to me how that should be done in a general way.
528    o CFC: improve formatting of output in CFC_ATMOS
529    o PTRACERS:
530      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
531        that ALL experiments with ptracers enable can be checked. This makes
532        GCHEM_MONITOR obsolete.
533      - include a runtime parameter PTRACERS_monitorFreq that defaults to
534        monitorFreq
535      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
536    o add PTRACERS (PTR0[1-5]) to testreport output
537    o exf_check_range:
538      * default changed to .TRUE.
539      * will check values for niter0 if debLevA, every timestep if debLevB
540      * STOP in exf_check_range if 'out of range'
541      * range chosen generous to allow for potential extema
542      TBD: a version with stricter range
543           permitted range would be runtime parameters
544    o GMredi:
545      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
546      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
547      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
548    o GCHEM:
549      - move call to GCHEM_FORCING_SEP, so that it is now called before
550        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
551      - introduced a useGCHEM runtime flag and applied it everywhere.
552      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
553        this flag is now only visible within GCHEM-pkg routines.
554      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
555        be replaced by a 3D array that is computed before thermodynamics; for
556        this, the tracer ID iTracer had to be included into the parameter list
557        of ptracers_forcing
558      - set up forward_step to call gchem_forcing, that will replace
559        gchem_forcing_int in ptracers_forcing
560      - cleaning up
561    o small cleaning of exch2: remove files that are also in eesupp/src
562    
563    checkpoint56
564    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
565    o mnc: cleanup "full" files--fixes out-of-memory problem
566    o ECCO-GODAE
567      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
568      * fully merged and updated from SIO code
569        windstress sign change affects
570        - exf_inscal_[u/v]stress
571        - sign of xx_tau[u/v] adjustments
572        - signs in cost_scat
573      * ctrl_get_gen: avoid update of tau[u/v] for first few days
574      * natl_box_adjoint updated and compressed
575      * 2-level checkpoint switch added
576        (tested in EXP. 1 of natl_box_adjoint)
577      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
578    o SVD
579      * first complete, non-hacked version for SVD calculations
580      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
581        performed via direct access files admtlm_vector.it????
582        (via ctrl_[un]pack)
583      * optimcycle is used for ARPACK iteration counter
584        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
585      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
586        and add linear transforms where necessary
587      * controls are initial/final SST, SSS (can be extended; need to check
588        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
589    o mdsio: filename info to both stderr, stdout
590    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
591      from sign change
592    
593    checkpoint55j_post
594    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
595      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
596    o add consistent build directories and .cvsignore files to verification
597    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
598    o make all subroutines 30 or less characters in length for certain older
599      compilers to work (a thorough search only turns up two routines in
600      pkg/ptracers)
601    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
602      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
603    
604    checkpoint55i_post
605    o change arrays for total vertical diffusivity (2.D if explicit,
606      3.D if implicit) ; each ptracer uses its own background value.
607    o added mnc/NetCDF output capability to ocn_compon_interf
608      - added bits to verification/cpl_aim+ocn so that it can run on
609        ITRDA and other clusters without the mpirun "-wd" option
610    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
611      configuration
612    o give MNC the ability to create additional files rather than
613      exceeding a specified file size limit "MNC_MAX_FILESIZE"
614      - the default is just less than 2GB which is a practical limit
615        on many systems
616    o Compute the non-local term using either KPP vertical diffusivity (=default)
617       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
618    
619    checkpoint55h_post
620    o add verification test "vermix"
621    o remove all the *_ioinc flags and replace with the single global
622      outputTypesInclusive flag
623    o allow to set a vertical profile of vertical diffusivity for T & S
624    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
625    o useMNC moved from data.mnc to data.pkg
626    
627    checkpoint55g_post
628    o Renaming carbon AD experiments to comply with testreport conventions
629    o Updating adjoint of Held-Suarez hs94.1x64x5
630    o Fixing directives for non-ECCO forward_step, after ECCO directives
631      have been fixed to avoid recomp. of do_oceanic_phys
632      Works well for global_ocean.90x40x15,
633      but recomp. issue remains for carbon
634    o Updating adjoint output for natl_box_adjoint after
635      pkg/ecco has been modified (see taga c55d_post)
636    
637    checkpoint55f_post
638    o rename to timeave_init_fixed
639    
640    checkpoint55e_post
641    o some delicate re-shuffle of store directives to avoid one
642      extra call of do_oceanic_physics
643      affects ecco_the_main_loop.F, do_oceanic_physics.F
644      checkpoint_lev1_directives.h
645    o NB: this may break global_ocean adjoint temporarily,
646      but it is clear how to fix it. Will do later, need this now.
647    
648    checkpoint55d_post
649    o ECCO specific cost function terms (up-to-date with 1x1 runs)
650    o ecco_cost_weights is modified to 1x1 runs
651    o modifs to allow observations to be read in as
652      single file or yearly files
653    o enable to read exf forcing fields as either
654      single file or yearly files (flag useExfYearlyFields)
655    checkpoint55d_pre
656    
657    o switch between 2-level and 3-level checkpointing
658    o add ability of MNC to write local and "partial" (eg. 2D slices where
659      the full 3D field is never actually stored) arrays to NetCDF files
660      with the correct (that is, the complete multi-dimensional) set of
661      array indicies
662      - used in mom_vecinv() to write the diagFreq output
663      - tested (demonstrated) in verification/aim.5l_cs
664    o further mnc-ification
665      - add verification/lab_sea to the list with mnc setups
666      - fix undefined mnc v-names in cd_code
667      - add kpp to mnc output (both snapshot and timeave)
668    o non-hydrostatic code
669      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
670        in calc_gw.F
671      - defaults to viscAh
672      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
673        friction or Leith) in non-hydrostatic mode, as long as there is
674        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
675    o pkg/cost
676      extend simple cost functions to treat time mean quantities
677      (T,U,V) via cost_accumulate_state from cost_tile
678    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
679        be 2 times larger than the minimum size the advection scheme requires.
680        now get a perfect conservation of salt in advect_cs test-exp (updated)
681    o GGL90 (Gaspar's TKE mixed layer)
682      - add horizontal diffusion of TKE, requires exchanges in
683        do_fields_blocking_exchanges, horizontal diffusivity is zero by
684        default. In OPA there is no horizontal diffusion of TKE but the
685        mixing coefficients are computed from a horizontal average of TKE of
686        6 points or so. I think that diffusion has a little more physical
687        justification.
688      - clean up ggl90_calc in the hope of reducing memory usage (this hope
689        was in vain)
690      - mask tke-variable in ggl90_init
691    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
692    o fix biharmonic diffusion on CS-grid.
693    o more obcs stuff
694      - added obcs_external_fields_load as an alternative to the EXF-pkg option
695        for reading boundary values. This routine is called from
696        obcs_prescribe_read
697      - updated obcs_check
698      - changed sponge layer relaxation parameter units for days to seconds
699      - turned off sponge layer by default
700      - changed argument list of OBCS_CALC to myTime+deltaTclock
701      - fixed about 35 bugs in obcs_external_fields_load
702    
703    checkpoint55c_post
704    o obcs stuff
705      - new runtime flags useOBCSprescribe, useOBCSbalance
706      - re-arranged obcs_calc
707      - moved exf_getobcs to obcs_prescibe_read
708        obcs_prescibe_read is called after ORLANSKI stuff
709        and independent of it (executable can contain all).
710      - updated obcs_check
711      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
712        These may be necessary only if tangential velocities are
713        prescribed at OB, not sure, needs testing.
714    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
715      which simplifies the calls and passes the ifc check-bounds test
716    
717    checkpoint55b_post
718    o add a 2D scalar, Z location, exchange_2 routine.
719    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
720      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
721      affects advect_cs results (for the wrong reason): update output.txt
722    o use a more standard discretization for biharmonic viscosity ;
723     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
724      affects results of dome set-up: update output.txt
725    o fix gad_advection.F (CubedSphere part), back to version 1.23
726    o fix bug in mom_vi_del2uv.F (CubedSphere part).
727    
728    checkpoint55a_post
729    o merged code to
730      * prescribe/read time-dependent open boundaries
731        (works in conjunction with exf, cal)
732      * sponge layer code for open boundaries
733      * each boundary N/S/E/W now has its own CPP option
734        (healthy for the adjoint)
735    
736    checkpoint55
737    o up-to-date adjoint of previous breaks
738      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
739      - global_ocean_ebm: adjoint still needs fix (TLM ok)
740      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
741      - carbon: * remove tr1-related adjoint verification
742                * add ptracer as control variable
743    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
744      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
745    
746    checkpoint54f_post
747    o in verification/carbin/ remove experiment related to
748      ALLOW_PASSIVE_TRACER (array tr1 etc)
749      code_ad/ input_ad/ results_ad
750    
751    o add two new packages
752      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
753        + subject to optimization (memory)
754      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
755        + subject to reordering (many GOTOs in the original code)
756        + so far opps is called for every (i,j) point, and then operates in
757          the vertical; one may want to reorder the scheme in order operate in
758          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
759          fields)
760    o overhaul of IO so that we now have flags for MDSIO and/or MNC
761      - all verification tests compile and run with linux_ia32_g77
762      - defaults are compatible with current input files--nothing
763        should change if you were not previously using MNC
764      - MNC output has been added in numerous places (eg. timeave)
765        but there are still a few writes not yet do-able with MNC
766        (this is in progress)
767      - flags now allow for either/or/both use of MDSIO and MNC and
768        documentation will soon follow
769      - numerous small formatting cleanups for ProTeX
770    o add version info (via BUILD_INFO.h) to MNC and stdout
771    
772    checkpoint54e_post
773    o add two new packages
774      - pp81 (Packanowski and Philander, 1981), Richardson number and
775        stratification dependent mixing
776      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
777      - these scheme operate in a similar manner as KPP (without ghat, of
778        course), however there is only one diffusivity that is used for both
779        temperature and salinity (and passive tracers)ç
780    o add offline package
781    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
782      provided by Stephanie Dutkiewicz
783    o genmake2: add ability to search for C compilers and cleanup test output
784      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
785    
786    checkpoint54d_post
787    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
788    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
789      leading to additional shift by 5 days each year of integration
790       (i.e. leading to considerable offset over the years)
791    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
792    o start with no AB and no initial filtering (staggerTimeStep):
793      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
794    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
795      (external loading & cpl import/export stay in forward_step.F)
796    o update coupling interface to work with new staggerTimeStep
797    o change MDSIO ptracers_pickup.
798    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
799    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
800    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
801    
802    checkpoint54c_post
803    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
804      this affects (truncation error) output.txt of test-exp:
805       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
806    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
807    o change Qnet to always be the net heat flux, (+upward).
808      affects (truncation error) output of natl_box exp.: updated
809    o define the max number of passive tracers in PTRACERS_SIZE.h
810    o start to test mnc routinely in exp0
811    o add sea-ice loading (sIceLoad) as a new forcing field.
812    
813    checkpoint54b_post
814    o add testreport "-j JOBS" option for parallel builds (tested and pretty
815       impressive on Altix and Opteron systems)
816    o diagnostics can now write NetCDF files through the mnc package
817    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
818    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
819    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
820      affects (truncation error) output of lab_sea & natl_box exp.: updated
821    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
822    
823    checkpoint54a_post
824    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
825    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
826    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
827    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
828      + internal_wave (shift in writing cg2d_ini_res)
829    checkpoint54a_pre
830    
831    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
832      - modified verification/lab_sea and natl_box_adjoint accordingly
833    
834    checkpoint54
835    checkpoint53g_post
836    o prepare splitting of thermodynamics: store convect.counter in common block
837    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
838      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
839    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
840    o new parameter "nShapS": allow to treat differently S from T (nShapT)
841    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
842    o restore adjointability
843    
844    checkpoint53f_post
845    o modifications that affect AIM experiment results (update output.txt):
846      - no advection of S at top interface Nr (pkg/generic_advdiff)
847      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
848    o AIM pkg:
849      - include stability function into surf.Flux derivative relative to Tsurf
850      - calculate clear-sky radiation & surface temp. change (for diagnostics)
851    
852    checkpoint53e_post
853    o merged cylindrical coord configuration
854    o added rotating_tank experiment
855    checkpoint53e_pre
856    
857    checkpoint53d_post
858    o faulks upgraded: re-generate output.txt that have changed:
859       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
860    o Added Bryan and Lewis, 1979, vertical diffusivity profile
861    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
862    o added Sadourny discretization of Coriolis
863      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
864      - re-enabled use of omega3 (useAbsVorticity)
865    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
866      vector-invariant equations
867      - note: does *NOT* yet use same variable visc. for no-slip BC's.
868    o recoded the lateral boundary conditions for non-hydrostatic w, this time
869      hopefully without new bugs
870      - still to do: biharmonic friction for non-hydrostatic w
871    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
872    o regenerated output for global_ocean_ebm (using -ieee)
873    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
874      of mom_common/
875      - simple re-arrangement of instructions within computing loop
876    checkpoint53d_pre
877    
878    checkpoint53c_post
879    o new version of coupler for AIM+thSIce and Ocean models
880     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
881     - land: change Evaporation of snow
882     - aim with thSIce: fix bug in snow-precip.
883    o changes to calc_gw.F
884     - bug fix for w^2 term near the bottom boundary
885     - (hopefully) improve the lateral slip boundary condtions for use with
886        partial/looped cells
887      - because the bug fix changes two verification experiments anyway (exp5
888        and plume on slope), change the lateral boundary condition from half slip
889        to the value of no_slip_sides
890    o ebm package wasnt quite up to the parallel task. Fixed that.
891    o Adjoint of EBM package + verification
892      * TLM OK
893      * ADM not sufficient accuracy yet (needs further testing)
894    
895    checkpoint53b_post
896    o Commiting new energy balance model to repository
897      * package is pkg/ebm
898      * verif. is verification/global_ocean_ebm
899      * references are in ebm_driver.F
900    C      * X. Wang, P. Stone and J. Marotzke, 1999:
901    C        Global thermohaline circulation. Part I:
902    C        Sensitivity to atmospheric moisture transport.
903    C        J. Climate 12(1), 71-82
904    C      * X. Wang, P. Stone and J. Marotzke, 1999:
905    C        Global thermohaline circulation. Part II:
906    C        Sensitivity with interactive transport.
907    C        J. Climate 12(1), 83-91
908    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
909    C        Destabilization of the thermohaline circulation
910    C        by atmospheric eddy transports.
911    C        J. Climate 7(12), 1870-1882
912    o Will need long integration testing.
913    checkpoint53b_pre
914    
915    o created pkg/mom_common in preparation for variable viscosity code
916    o renamed and split ini_mnc_io
917    o pkg/land: only liquid water can diffuse or run-off
918    o AIM using land: soil wetness availability account for snow
919    o added printMapIncludesZeros to EEPARMS namelist
920    
921    checkpoint53a_post
922    o restore TAMC compatiility for exf_constants.h
923      (no usage of _d in .h)
924    o Additional storing in KPP in an attempt to fix
925      TAMC problem with adjoint of KPP code.
926      (no success...)
927      Identical code works fine with TAF.
928    o Fixed verification/natl_box_adjoint experiments.
929      Initial conditions for Experiments 4 and 5 are now
930      set to "SEAICE_initialHEFF=0", which is more reasonable,
931      and hence gives results closer to that of Experiment 2.
932      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
933    
934    checkpoint53
935    o stable checkpoint with up to date adjoint
936      TLM tests only run for 1st grdchk at the moment. Its unclear if
937      this is a code problem or a problem with resetting code for g_
938      variables that is being autogenerated wrong.
939      Otherwise:
940       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
941       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
942         are both still in chaos following their security messes.
943    
944    checkpoint52n_post
945    o various build (mostly genmake2) changes including:
946      - ability to build/run more easily within Cygwin and MacOS X
947      - more complicated Makefiles with a stronger dependence on Gnu Make
948    o pkg/seaice modifications
949      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
950        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
951        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
952      - changed proxy for geostrophic velocity and updated
953        verification/lab_sea/results/* accordingly
954      - removed ADI dynamic solver from pkg/seaice
955      - replaced all occurrences of 1/CSTICE or 1/CSUICE
956        they caused a segmentation fault under certain circumstances
957      - removed unused field WATR
958    o bug fix in exf-package:
959      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
960         now reflect that.
961    o small fixes in the cal-package:
962      - set reference date to first of January for the 'model'-calendar
963      - failing of cal_CheckDate in cal_FullDate now actually results in a
964        warning
965    o small modifications in exf-package to increase flexibility:
966      - change climtempfreeze from a constant to a runtime parameter that
967        is specified in data.exf_clim (default = -1.9)
968      - introduce runtime parameter windstressmax (default = 2.0) that is
969        specified in data.exf
970    o fix in pkg/thsice:
971      - update Evap (Tsf changes) to be consistent with Latent heat flux
972      - maintain snow precipitation unchanged (even if Tsf >=0).
973     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
974    
975    checkpoint52m_post
976    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
977      this does not change any of the results, because myIter=0 in swfrac always
978      lead to jwtype=2 (the default anyway), but the call makes little sense
979      as a default
980    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
981    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
982      atmospheric model (AIM) to use it ; add a "slab ocean" component.
983    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
984    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
985    o extending useSingleCpuIO option to work with new exch2 I/O format
986      - old-style, missing-tile I/O is still accessible by defining CPP
987        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
988    o monitor package can write to NetCDF files and/or STDOUT
989    o fix re-definition bug in MNC_GRID_INIT_ALL()
990    o doc/api_reference added
991      - a framework for building an API Reference Manual using all
992        the "protex" comments embedded in the code
993      - see pkg/generic_advdiff, pkg/mnc for examples
994    o MNC:
995      - make myThid the last argument for all subroutines
996      - new default for the grid files: NO halos
997      - add useMNC and other run-time flags
998      - separate per-file-group handling of the unlimited dimension
999      - early initialization of MNC w/ flags read at the eeboot stage
1000        and lookup tables set in initialize_fixed
1001      - write all MNC output to a freshly-created directory
1002    o thermodynamics sea-ice (thsice) is now tested with testreport.
1003    o test exp. advect_cs: use the standard cs32 grid ; update output.
1004    o Added functionality to grdchk:
1005      pick global i,j,k position (or nearest wet) where to perform check.
1006    
1007    checkpoint52l_post
1008    o new land formulation:
1009      a) use ground enthalpy as prognostic variable to ensure exact
1010         energy conservation.
1011      b) account for water temperature and for latent heat of freezing
1012         in all processes (rain, run-off, ground storage)
1013      c) compute surface and ground temperature implicitly.
1014    o aim_v23 modification for new land model:
1015      a) Treat separately land / ocean / sea-ice surface fluxes
1016         to allow implicit computation of land & sea-ice surface temp.
1017      b) add snow precipitation.
1018    checkpoint52l_pre
1019    
1020    o fix problem (when 1 tile is empty) in min/max monitor.
1021    o fix bug in timeAve (u,vZetatave in common block)
1022    o no restoring terms under ice for pkg/seaice
1023    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1024    o bug fix for pkg/seaice pickups
1025    o change MNC call locations and add coordinate attributes
1026    o mask vorticity at the corner ; affects global_ocean.cs output
1027    o fix ini_curvilinear_grid ; test CS experiments with mpi
1028    o aim.5l_cs: modify sea-ice fraction input file ; update output
1029    o exf: Adding simple range check routine for exf fields after read
1030    
1031    checkpoint52k_post
1032    o removed top-level directory "diags"
1033      - we migrated these functions to pkg/timeave a long time ago
1034    o fixed bug introduced in pkg/monitor
1035    o accuracy ctrlprec = 32 insuffient for gradient checks using
1036      averaged fields (I/O via cost_averages)
1037      -> use ctrl.h in active_file*.F to control I/O precision.
1038    o paramter list of CALL ADTHE_MAIN_LOOP
1039    o added initial do_the_model_io to ecco
1040    o set all ...Freq to zero after cost_final
1041      taveFreq, dumpFreq, pChkptFreq
1042    o MAIN and ECCO differentiability restored
1043    
1044    checkpoint52j_post
1045    o fix nchklev in tamc.h for global_ocean...
1046    o Bringing flow and store directives up-to-date
1047    o Really weird thing!
1048      call do_the_model_io from the_main_loop with parameters
1049      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1050      TAF places a faulty re-call of initialise_varia
1051      after cost_final call which should not be there!
1052    checkpoint52j_pre
1053    
1054    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1055      error messages
1056    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1057    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1058      debug output
1059    o modfied mdsio_writefield.F to handle non-global files under exch2
1060    o update AIM Cubed-Sphere exp (aim.5l_cs):
1061      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1062    o update AIM Equatorial Channel exp:
1063      use standard aim_v23 pkg and change the SST fields to be more realistic.
1064    o globalFile now works with exch2
1065    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1066      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1067    o limit timeave output for hi-res integrations
1068    
1069    checkpoint52i_post
1070    o removed CPP_EEOPTIONS.h from verification/*/code
1071    o updated the tiling for global_ocean_pressure
1072    checkpoint52i_pre
1073    
1074    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1075      the old pkg/aim).
1076    
1077    checkpoint52h_pre
1078    o shortened offending lines in exch2_send_rx?.template
1079    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1080    o genmake2: add build & execute test for NetCDF code
1081    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1082      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1083    o added useSingleCPUIO flag to monitor.F and mon_out.F
1084    o added temporary hack for sea-ice dynamics on the cube:
1085      metric terms are ignored and it is assumed that
1086      there is no sea-ice on cube faces 1, 2, 4, and 5.
1087    
1088    checkpoint52f_post
1089    o added exch2 cube routines to pkg/exch2
1090    o modified hs94.cs-32x32x5 to use it
1091    o added new grid files to hs94.cs-32x32x5
1092    checkpoint52f_pre
1093    
1094    checkpoint52e_post
1095    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1096      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1097    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1098      to work with implicit vertical advection and AB ;
1099    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1100    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1101     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1102    checkpoint52e_pre
1103    
1104    o fix bug in impldiff when Nr=1 or Nr=2.
1105    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1106    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1107    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1108      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1109    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1110    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1111    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1112    
1113    checkpoint52d_post
1114    o re-tiled many expts to allow comparison in multi-processor mode
1115      - updated output accordingly
1116      - changed hs94.128x64x5 to use intial T from file rather than use the
1117        random number generator
1118    o add infrastructure in model routines for fizhi and gridalt packages
1119    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1120    o changes to permit hi-res, cubed-sphere, configuration
1121      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1122      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1123      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1124        of surface winds for the cube
1125      (A verification experiment, based on global_ocean.cs32x15, but with
1126       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1127       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1128       complete with example surface forcing files and matlab scripts to look
1129       at the output and compare it with that of global_ocean.cs32x15.)
1130    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1131       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1132       to conform to the common rule.
1133    o check-in the first version of the coupler + interfaces for multi-components
1134       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1135       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1136       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1137       - ocean and atmos. share the same horizontal grid (no interpolation).
1138       - exchanges between component and coupler is done in forward_step
1139    o new verification experiment, cpl_aim+ocn:
1140       coupled ocean - AIM atmosphere on cs32 grid.
1141    
1142    checkpoint52d_pre
1143    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1144    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1145    
1146    checkpoint52c_post
1147    o Fixing OPTIONS files for use of exf:
1148      - ALLOW_ECCO not needed
1149      - ECCO_CPPOPTIONS.h should not be included from
1150        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1151        as has been the case in the past
1152      - All cal/exf related options are currently set in
1153        single header file. Should remain so until we
1154        agree on a consistent new policy.
1155    o Removed all CPP options for cal package.
1156      cal has no more CPP options.
1157    o modified STOREs in GAD_ADVECTION
1158    o corrected key comp. for passkey
1159    
1160    checkpoint52b_post
1161    o new version: "thsice" of thermodynamic sea-ice pkg:
1162     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1163     - modify fluxes but do not change theta directly;
1164     - light cleaning of bulk_force pkg (still needed with thsice).
1165     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1166       + output_thsice.txt to test thsice & bulk_force pkgs.
1167    o put back grid & coriolis monitor output.
1168    checkpoint52b_pre
1169    
1170    o call "do_the_model_io" at the beginning (=> dump initial state)
1171    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1172    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1173      (need info on NUMBER_OF_PTRACERS)
1174    o missing PTRACERS headers in some routines
1175    o default tamc.h in pkg/autodiff supposed to crash
1176      to ensure proper customization
1177    
1178    checkpoint52a_post
1179    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1180      - moved surfaceTendencyTice from pkg/seaice to main code
1181      - subroutine FREEZE_SURFACE now limits only surface temperature
1182        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1183        => new output.txt for global_ocean.cs32x15 & global_with_exf
1184      - keep the old version of FREEZE for backward compatibility;
1185        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1186      - corresponding modifs for TAF directives
1187    o added surface flux output variables to TIMEAVE_STATVARS
1188    o time-averaged output for pkg/ptracers
1189    o fix problem with ECCO-related divided adjoint
1190      snapshot file was missing some ad-variables,
1191      but no warning issued by TAF
1192    
1193    checkpoint52a_pre
1194    o some bug fixes for #undef REAL4_IS_SLOW
1195    
1196    checkpoint52 = ecco_c52_e35
1197    o after testing adjoints of checkpoint51u_post
1198    
1199    checkpoint51u_post
1200    o this is the post-merge tag of the ecco-branch
1201      (needs another clean checkout and re-testing)
1202    o various natl_box_adjoint configs and results
1203      but no input fields
1204    o obcs adjoint not yet merged!
1205    o adding ECCO global 1x1 and 2x2 degree configs
1206    o updated/extended some store directives for seaice
1207    o pkg/ecco now containes ecco-specific part of cost function
1208    o top level routines the_main_loop, forward_step
1209      supersede those in model/src/
1210      previous input data.cost now in data.ecco
1211      (new namelist ecco_cost_nml)
1212    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1213    
1214    checkpoint51t_post
1215    o this is the pre-merge tag of the ecco-branch
1216    
1217    checkpoint51s_post
1218    o cleanup: removed various obsolete #define-s
1219    o pkg/grdchk
1220      - renamed 'ph-grd 3' to 'grad-res'
1221      - merged from ecco-branch
1222        (remaining bug fixes for obcs gradient checks)
1223      - additional high-precision output for testreport
1224        (grep for 'precision_grdchk_result')
1225    
1226    checkpoint51r_post
1227    o cleaned up or removed CPP_OPTIONS.h files
1228    o updated results for some of the tests to reflect the new
1229      optfiles (-ieee: -O0 instead of -O3)
1230    
1231    checkpoint51q_post
1232    o cd_code:
1233      - moved cd_scheme.F -> cd_code_scheme.F
1234      - separate read_checkpoint from cd_code_ini_vars.F
1235      - separated cd_code part from write_checkpoint
1236      - updated AD_SOURCE, generated .flow
1237      - added CD_CODE_VARS.h to the_main_loop
1238      - Moving cd_code specific store dir.s to pkg/cd_code
1239    o ctrl package totally restructured
1240      - pack/unpack now optional and decoupled from
1241        xx_/adxx_ I/O
1242      - ctrl_pack/unpack cleaned
1243        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1244      - confined inclusion of AD_CONFIG.h to where necessary.
1245    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1246    
1247    checkpoint51p_post
1248    o create initial cd_code package
1249      - WARNING: the initialization of fields within packages
1250        is broken because INI_FIELDS (where READ_CHECKPOINT is
1251        called) is called *before* PACKAGES_INIT_VARIABLES.
1252        This seems to be backwards since
1253        1) its important to initially zero the entire field including
1254           the "halo" region
1255        2) zeroing needs to be done *before* reading pickup info
1256           and the pickup call might or might not happen in any
1257           particular run
1258      - this needs an overhaul for R2
1259    o cleanup verification/*/code/GMREDI_OPTIONS.h
1260    o cleanup testreport
1261    
1262    checkpoint51o_post
1263    o bringing AD-related verif's up to date with genmake2
1264      - carbon/
1265      - global_ocean.90x40x15/
1266      - hs.94.1x64x5/
1267      - (front_relax/ )
1268    o (more) consistent directory structure for AD-related verif.'s
1269    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1270    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1271    o bug fix in find_alpha.F for MDJWF:
1272      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1273        change rho -> rho-rhoConst
1274      - replace call find_rho to find_rhonum
1275    o initialisation of rFlx extended to full array (required by TAF)
1276      and shifted to thermodynamics
1277    o removed PTRACERS.h in ptracers routine
1278    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1279    o Correcting initialisations for fVerU, fVerV.
1280    o helping TAF to recognize dependency on kUp for
1281      fVerU, fVerV
1282    o Replacing delZ by delR in pkg/ctrl/
1283    checkpoint51o_pre
1284    
1285    o undid all of cp51 pending some cleanups and discussion
1286    o added the [#include "AD_CONFIG.h"] statement to all files that need
1287       it for adjoint/tl #defines
1288     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1289     o removed tools/genmake since it no longer works
1290    
1291    checkpoint51n_post
1292    o modifications to make FREEZE flux visible to pkg/kpp
1293      - moved surfaceTendencyTice from pkg/seaice to main code
1294      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1295      - subroutine FREEZE now limits only surface temperature
1296        (this means new output.txt for global_ocean.90x40x15,
1297         global_ocean.cs32x15, and global_with_exf)
1298    o added surface flux output variables to TIMEAVE_STATVARS
1299    
1300    checkpoint51n_pre
1301    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1302    o added [#include "AD_CONFIG.h"] to all files that use the following
1303      defines:
1304      - ALLOW_ADJOINT_RUN
1305      - ALLOW_TANGENTLINEAR_RUN
1306      - ALLOW_ECCO_OPTIMIZATION
1307    
1308    checkpoint51m_post
1309    o incorporating changes to get TAMC/TAF working in genmake2
1310      - added new TAMC/TAF targets to the Makefile
1311      - various cleanups related to package handling
1312      - these changes should have no impact on the forward model
1313    
1314    checkpoint51l_post
1315    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1316     - faster algorithm for cal_addtime.F
1317     - higher precision arithmetic, where needed
1318     - pkg/exf *startdate variables changed from calendar date to
1319       model integration time
1320    
1321    checkpoint51l_pre
1322    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1323    o enable to apply restoring on S & T only in a latitude band.
1324    o update output (external_forcing_surf modif. change truncation errors)
1325       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1326    
1327    checkpoint51k_post
1328    o change default to: useNHMTerms=.FALSE.
1329     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1330       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1331     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1332        exp1, ideal_2D_oce
1333     - change data file of oceanic exp (leave the results unchanged for now)
1334       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1335    o set gravitySign automatically according to the vertical coordinate used
1336      (and change sign: back to "logical" value: +1 when R increases downward)
1337    o added an include barrier to the default CPP_OPTIONS.h and
1338      removed the #include "PACKAGES_CONFIG.h" from it
1339    o fix a bug in mom_fluxform (from chk51j_post)
1340    
1341    checkpoint51j_post
1342    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1343    o adjusted some flow directives (dynamics, thermodynamics)
1344    o added cubed-sphere case to test cost function
1345    o heckpoint_lev?_directives.h now include
1346      pkg-specific directives, whenever those are enabled.
1347    o Moving pkg-specific flow directives to corresponding pkg
1348      Moving pkg-specific differentiation list to corresponding pkg
1349      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1350      ---> conventions are
1351           - pkg_ad.flow
1352           - pkg_ad_diff.list
1353           - pkg_ad_check_lev?_dir.h
1354    
1355    checkpoint51i_post
1356    o merge of the branch-genmake2
1357      - knowingly breaks the older genmake
1358      - automatic generation of all ALLOW_${PKG_NAME} defines
1359      - new testreport supersedes older testscript
1360    o large number of package inclusion and header cleanups
1361    checkpoint51i_pre
1362    
1363    o new output for adjoin of global ocean vector invariant
1364    o fix for checkpoint of thermodynamic seaice and bulk_force
1365    o Steph gchem various cleanups
1366    
1367    checkpoint 51h_pre
1368    o fixed some single quotes
1369    o modify gchem pkg to be more versatile
1370    o modifications to clean up dic pkg
1371    o add pkg/cfc
1372    
1373    checkpoint51g_post
1374    o provide links for ARPACK and ADM*TLM
1375    o start removing verification/vero/
1376    o update AD-related stuff
1377      (in particular some IF-statements in model/src/ routines)
1378    o adding to verification/global_ocean.90x40x15/ adjoint of
1379      vector invariant setup
1380    
1381    checkpoint51f_post
1382    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1383    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1384      of tracer Green's fucntions for ocean inversion project.
1385    
1386    checkpoint51f_pre
1387    o Added on-the-fly spatial interpolation capability
1388        "USE_EXF_INTERPOLATION" to pkg/exf.
1389      - This is a temporary Cartesian-grid hack until
1390        the super-duper ESMF coupler becomes available.
1391      - See verification/global_with_exf/README for usage example.
1392      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1393        flags and modified pkg/seaice accordingly.
1394    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1395        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1396        non-local transport term.
1397    
1398    checkpoint51e_post
1399    o pkg/mom_vecinv:
1400      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1401      - add time-ave diagnostic of vorticity advection.
1402    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1403    o atmospheric geopotential: - include water vapor effect;
1404                                - use p^kappa in p* scaling.
1405    o land pkg: read initial state from files.
1406    o AIM : add stratospheric drag in the upper level
1407    
1408    checkpoint51d_post
1409    o change function ILNBLNK (=> last non-blank char.) to return zero
1410      (instead of the string length) when the string. char is empty
1411    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1412    o modif's to restore TAMC compatibility
1413      - avoid "_d" constructs in PARAMETER declarations
1414      - avoid interrupting lines by comment lines
1415    o Use cluster local disks for purely local I/O
1416      vs. globally visible disks needed for ctrl stuff
1417      (merged from ecco-branch)
1418      - new active_file_loc... and mdsio_..._loc routines
1419      - affected packages: autodiff, ctrl, grdchk, mdsio
1420    
1421    checkpoint51c_post
1422    o introducing integer flag debugLevel
1423      - debLevZero: suppress all output
1424      - debLevA: standard
1425      - debLevB: equivalent to current debugMode=.TRUE.
1426    o introducing pathname variable mdsioLocalDir for mdsio
1427      that can be specified at runtime
1428      (relevant for cluster I/O to local disk)
1429    `
1430    >>>checkpoint51b_post
1431    adjoint of ptracers
1432    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1433    o extended state in checkpoint_lev?, etc.
1434    o alternative ctrl/cost with tr1 or ptracer
1435    o new comlev1_bibj_ptracers
1436    o new ptracers.flow
1437    o made ptracers_forcing same as external_forcing_s
1438    o added verification for adjoint with ptracers
1439      - adm. grdchk fail so far
1440      - tlm. grdchk OK
1441      - checked tapelev/comlev recomputations: OK
1442    <<<checkpoint51b_pre
1443    
1444    checkpoint51a_post
1445    o added code for biogeochemistry package
1446      - new pkgs: dic, gchem
1447      - new subroutine in ptracers
1448    o modify code for biogeo packages
1449      - in model/src and pkg/ptracers
1450    
1451    checkpoint51
1452    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1453      - autodiff, ctrl, exf, grdchk, seaice
1454      kept separate packages
1455      - cost, ecco, obcs
1456    o updating verification/internal_wave, verification/lab_sea
1457      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1458    
1459    checkpoint50i_post
1460    o Preparing next differentiable checkpoint and sync
1461      of MAIN vs. ecco-branch
1462      - 1st step: this one is differentiable
1463      - 2nd step: next(! not this) checkpoint will have updated packages
1464                  from ecco-branch)
1465    
1466    checkpoint50h_post
1467    o new package "land": provide surface BC for AIM.
1468    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1469    o AIM: use true log-P extrapolation for near surface temp (= as in
1470        F.Molteni paper) ; update aim.5l_cs output.
1471    o New variable in PARM03 for more flexible pickups
1472    o somewhat cleaned package initialisation sequence for
1473      ctrl/ cost/ ecco/ in packages_... routines
1474    
1475    checkpoint50g_post
1476    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1477      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1478      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1479        made the default because of faster convergence than ADI
1480    
1481    checkpoint50f_post
1482    o exf totally restructured
1483      - replaced all exf_set_ routines by one generic exf_set_gen.F
1484        and made sure it's still differentiable
1485      - split exf_getffields.F into new exf_bulkformulae.F
1486      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1487      - updated adjoint/makefile and relevant verif. accordingly
1488    
1489    checkpoint50f_pre
1490     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1491          + change Evap over land. (update aim.5l_cs output)
1492     o added missing .cvsignores and made uniform across expts
1493     o changed configuration of tidal_basin_2d expt
1494     o added pkg/debug functions for tracing code in fatal crashes
1495     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1496     o new fn in pkg/monitor to stop model if solution grows too big
1497     o removed lots of single quotes from comments
1498    
1499    checkpoint50e_post
1500    o make KPP work with PTRACERS
1501     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1502       nearly a copy of kpp_transport_s
1503     - there is no analogue to SurfaceTendencyS, so I have to use
1504       gPtr(of the surface layer) instead
1505    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1506    checkpoint50e_pre
1507    
1508    checkpoint50d_post
1509    o change kpp output from multiple-record state files to single-record state
1510      files analogous to write_state.F
1511    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1512      analogous to the cg2d-related output.
1513    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1514      so that writing to internal file fn (with length 512) fails.
1515    checkpoint50d_pre
1516    
1517    checkpoint50c_post
1518    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1519    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1520    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1521    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1522    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1523    
1524    checkpoint50c_pre
1525    Merging from release1_p13:
1526    o bug fix for pkg/seaice dynamic solver
1527    o Added SEAICE_initialHEFF to pkg/seaice
1528    
1529    checkpoint50b_post
1530    o store u*,v* in gU,V instead of in guNm1,gvNm1
1531    o in order to put the momForcing out of the Adams-Bashforth:
1532      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1533      to timestep.F
1534    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1535    o re-generate output for highly sensitive test-exp:
1536       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1537    
1538    checkpoint50b_pre
1539    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1540    o corrected CPP option mismatch in exf_Bulk... functions for case
1541      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1542    
1543    checkpoint50a_post
1544    o Bug fix for merging between c50 and KPP.
1545      ikey was passed from thermodynamics to kpp_calc via
1546      common block rather than being recomputed in kpp_calc,
1547      in contradiction with new key itdkey.
1548      New key ikppkey created, and tamc.h headers updated.
1549    
1550    checkpoint50
1551    - 2nd step of merge with ecco-branch:
1552      merge changes in ecco-branch back into main trunk
1553    - bug fix in find_alpha
1554    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1555    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1556    - merged some sliced AD support routines
1557    
1558    checkpoint49
1559    merged from ecco-branch:
1560    o exf:
1561      - Enable initialisation of forcing fields to constant
1562        (runtime) values.
1563      - in exf_getffields.F
1564        Reduce i-/j-loop to interior domain, discarding overlaps.
1565        That also fixes wrong TAF-key computations for key_1, key_2
1566        with bulf formulae.
1567      - exf_init.F modify #ifdef for exf_init_evap
1568      - exf_getffieldrec.F, ctrl_getrec.F
1569        The following INT-usages are not safe:
1570          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1571          fldcount = int(fldsecs/fldperiod) + 1
1572        and were modified.
1573    o autodiff: checkpoint_lev...
1574      - updated storing for bulk formulae (some arrays were missing)
1575      - added state for seaice package
1576      - synchronized with main branch
1577    o DIVA:
1578      Modif.s in
1579      - the_main_loop.F
1580      - the_model_main.F
1581      and added cost_final_restore.F cost_final_store.F
1582      o With these changes, it is possible to fully separate
1583        the first forward run to compute the cost function (mdthe_main_loop)
1584        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1585        into separate model executions.
1586        This enables better tuning of DIVA to given queue sizes.
1587      o Loss of cost function value in consecutive DIVA runs is
1588        fixed by storing to 'costfinal' file.
1589      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1590        beginning/end of adjoint integration is accounted for.
1591      The current changes apply to TAF-1.4.26.
1592      TAF has one remaining bug, requiring one manual change
1593      (see MITgcm manual).
1594    o cal: synchronized between MAIN and ecco-branch
1595    
1596    checkpoint48i_post
1597    o Changes to restore differentiability of code w.r.t. previous tag
1598      (mostly adding new routines to make list and replacing
1599      pressure by totPhiHyd).
1600    o Updated and merged grdchk package
1601      - has both ADM and TLM checks
1602      - works for single- and multi-proc.
1603      - output cleaned
1604      - worked successfully for parallel DIVA
1605    o genmake:
1606      - Adding -platform=SP4
1607      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1608    o Modif. for DIVA:
1609      ctrl_unpack should not be called in intermediate DIVA interval.
1610      (similar thing would apply for active files such as
1611      tbar, sbar, psbar, which should not be reinitialised;
1612      only relevant for ecco-branch)
1613    
1614    checkpoint48h_post
1615    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1616    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1617    o Added SEAICE_initialHEFF to pkg/seaice
1618    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1619    
1620    checkpoint48g_post
1621    --- EOS:
1622    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1623      store total Potential in totPhyHyd for diagnostics & EOS.
1624    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1625    --- Pressure/geopotential gradient:
1626    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1627    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1628      ( changes results of global_ocean_pressure )
1629    o NLFS + z-coord.: add eta*Rho' contribution.
1630    o accurate phiHyd when using interface-W at the middle between 2 centers
1631     ( changes results of ideal_2D_oce )
1632    o includes r* 2nd term in potential gradient.
1633    
1634    checkpoint48f_post
1635    Merging from release1_p12:
1636    o Modifications for using pkg/exf with pkg/seaice
1637      - improved description of the various forcing configurations
1638      - added basic radiation bulk formulae to pkg/exf
1639      - units/sign fix for evap computation in exf_getffields.F
1640      - updated verification/global_with_exf/results/output.txt
1641    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1642      (SBO) core products, including oceanic mass, center-of-mass,
1643      angular, and bottom pressure (see pkg/sbo/README.sbo).
1644    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1645      to avoid negative values in shallow regions.
1646      - updated verification/natl_box/results/output.txt
1647      - updated verification/lab_sea/results/output.txt
1648    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1649    o Added useSingleCpuIO option (see PARAMS.h).
1650    o Updated useSingleCpuIO option in mdsio_writefield.F to
1651      work with multi-field files, e.g., for single-file pickup.
1652    o pkg/seaice:
1653      - bug fix in growth.F: QNET for no shortwave case
1654      - added HeffFile for specifying initial sea-ice thickness
1655      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1656    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1657      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1658    o pkg/seaice:
1659      - adjoint-friendly modifications
1660      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1661    
1662    checkpoint48e_post
1663    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1664    o dynamics: change definition of computational domain & adapt mom_fluxform
1665      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1666    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1667        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1668        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1669        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1670        inverted_barometer solid-body.cs-32x32x1
1671      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1672    
1673    checkpoint48d_post
1674    o in preparation for r*:
1675     a) use pre-computed gradient of hydrostatic potential:
1676        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1677     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1678        => affects results of glob_oce_pressure (different truncation error)  
1679      update output.txt of ideal_2D_oce & global_ocean_pressure
1680    
1681    checkpoint48d_pre
1682    o in preparation for r*:
1683      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1684      pass the 2 comp. of the grad. as arguments to momentum S/R.
1685      but for the moment, only used if it does not change the results.
1686    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1687    
1688    checkpoint48c_post
1689    Modifications in treatment of initial flux forcing controls
1690    to avoid extra storing of flux fields.
1691    
1692    checkpoint48c_pre
1693  o Added tidal_basin_2d experiment (currently 1D!)  o Added tidal_basin_2d experiment (currently 1D!)
1694  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)
1695    

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