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revision 1.38 by heimbach, Tue Apr 10 22:35:24 2001 UTC revision 1.577 by jmc, Thu Nov 3 19:06:51 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    checkpoint57w_post
8    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
9                 fix the singleCpuIO RS version of MDSWRITEFIELD
10       and add a WARNING if using globalFiles=T with multi-processors.
11    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
12      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
13    o tracer advection scheme:
14      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
15       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
16       was not very convenient).
17      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
18       (further tests needed for the implicit DST & Flux-Limiter schemes).
19    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
20      and sRef for convenience, handy, when you want to initialize
21      ptracers in a large domain with a constant non-zero value. Also,
22      untangle ptracers_init.F a little.
23    
24    checkpoint57v_post
25    o change dome exp. to use variable viscosity in side-drag terms.
26    o remove all the files from the cfc_offline test since they are now
27      incorporated into tutorial_cfc_offline which has been producing
28      identical results for a few days of testing
29    o add new parameter: sideDragFactor to enable half-slip-side BC
30      and change side-drag S/R to use viscosity from mom_calc_visc
31      (can switch back by setting sideDragFactor=0.); affects results at
32      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
33       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
34    o vorticity & strain are now computed without masking, to account for
35      no-slip-side BC in variable viscosity calculation ; mask is applied
36      anyway later on, before computing advection/coriolis terms.
37    o modify exp4 to test new obcs support for reading from external files
38      and for passive tracers
39    o fix behavior of ptracers_monitor when monitor output is written to a
40      netcdf-file; still not independent of monitor.F (writes in the same
41      file).
42    o change default value of tRef (put a uniform, meaningful value for ocean
43      & atmos) and initialize sRef (was missing, as Martin mentioned).
44    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
45      to be proportional to enstrophy dissipation length.  Thus,
46       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
47      This is now consistent with Smagorinsky and with the manual.
48    
49    checkpoint57u_post
50    o OBCS and PTRACERS: add open boundary support for passive tracers
51      - either use homogenous (pseudo) v.Neumann conditions or prescribe
52        OB-values from file; this is not different from the way theta and salinity
53        are treated
54      - however, Orlanski-radiation conditions are not supported, and the model
55        will stop if you use pTracers and Orlanski at the same time.
56      - beefed up the rountine obcs_external_fields_load: now only those open
57        boundary values are overwritten with values from files for which there
58        are really files, otherwise the OB-fields remain untouched. This makes
59        it possible to use different OBs at different ends of the domain (as
60        with EXF)
61    o reduce number of exch calls in shap_filt (s2).
62    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
63      truncation level) 4/5 MLAdjust test results (11&12 digits match).
64    
65    checkpoint57t_post
66    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
67    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
68      same truncation, independent of the face number: affects affects several
69      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
70    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
71      note that biharmonic viscosity + no-slip was not tested in any experiment.
72    o fix bug in non-linear free-surf side-drag ; generate new output for
73      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
74    o make mnc honor the writeBinaryPrec flag for most kinds of output
75    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
76    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
77      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
78    o add brackets in multi-terms sum to get same truncation, independent of
79      the face number (manage to get exactly same value of gU,gV at the cs-edge)
80      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
81    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
82      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
83      a maximum grid-scale Reynolds number.  Also, changes all length calculations
84      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
85      Suggested values of viscosity parameters found in mom_calc_visc.
86      Many new viscosity diagnostics available.
87    
88    checkpoint57s_post
89    o Add clearing-house for viscosity calculations, mom_calc_visc and
90      correct numerous bugs in LeithD and Smagorinsky discretizations.  
91      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
92      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
93      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
94      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
95      The Strain-Tension form is now called with useStrainTensonVisc=.true.
96      ViscAhStrain and viscAhTension are now retired.
97    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
98    o In response to JMC's bug report, genmake2 now ignores any soft-links
99      that it finds in the *current* directory when searching for files.
100      Soft-links found in any other source directories will still work as
101      they did before.
102    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
103      a C routine to unlimit the stack size
104    o mnc-ify pkg/aim snapshot vars
105    o mnc-ify pkg/land as requested by Daniel
106    o various changes to mnc including:
107      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
108      - output can now be grouped so that all files within a group
109          change the ITER portion of their names in lock-step together
110      - can now read ("global") PER-FACE (in addition to PER-TILE) files
111          and works with both EXCH1 and EXCH2 (but needs more testing)
112      - writing works for all verification test cases w/ g77 on Linux
113    
114    checkpoint57r_post
115    o make MNC variable initialization happen earlier
116    o add diagnostics for (almost) each term of the momentum Eq.
117    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
118    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
119    o remove MINIMAL_TAVE_OUTPUT option ;
120      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
121    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
122      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
123    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
124    o add time-dependent SST, SSS control
125    o cost terms in ecco/ modularized (new cost_generic.F)
126    o cost_averages routines are modularized (new cost_averagesgeneric.F)
127    o new infrastructure for seaice model vs. obs misfits in seaice/
128      * driver from the_main_loop.F is seaice_cost_driver.F
129      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
130      * gradient check in Exp. 6a of natl_box_adjoint/
131    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
132      (see README file)
133    
134    checkpoint57q_post
135    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
136    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
137      - bug was reported by Jean-Michel and Ian Fenty
138    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
139      update exp. cpl_aim+ocn output.
140    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
141      Needed for high-res. runs with large global files
142      to be able to limit tapelev size
143    o Changed some tests for adjoint:
144      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
145      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
146      * global_ocean.90x40x15/ back to default 3-level checkpointing
147    o Modifications to enable scripted COMMON to MODULE conversion
148      * verification/OpenAD/code/ has necessary scripts and description;
149      * converts, compiles and runs successfully;
150    
151    checkpoint57p_post
152    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
153    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
154      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
155    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
156    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
157      (was already the case for dissipation with mom_vecinv,
158       and also the case for grad.PhiHyd when staggered-timeStep)
159      This will allow to put dissipation out-off the AB time-stepping.
160     Unfortunately, affects truncation error. Update output of exp. that "fails"
161      (cg2d matching number) and leave the others for later: front_relax(10),
162      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
163      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
164    
165    checkpoint57o_post
166    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
167      (2) its ready to be documented during the 20050801 DocFest
168    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
169      for ideal_2D_oce and lab_sea on linux_ia32_g77
170    o set to #undef CTRL_SET_OLD_MAXCVARS_30
171      in global1x1_tot/code_seaice_adj to access indices 32, 33
172      (worth another tag)
173    
174    checkpoint57n_post
175    o adding precip control xx_precip 32
176    o adding swflux control xx_swflux 33
177    o Replacing 10 forcing penalty cost routines by 1 generic.
178    o Implementing partitioning in time-mean and variable adjustment
179      for atmos. state.
180    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
181    o in natl_box_adjoint:
182      * updated exp 1 to 10
183        (but does not have time-mean vs. variable split results yet)
184    o updated global1x1/*_seaice_adj/
185      to incorporate latest changes
186    o enable useSingleCpuIO for mdsio vector routines
187      (applies in particular to tapelev I/O)
188    o removed inefficient K-loop in all active_file*control*.F
189    
190    checkpoint57m_post
191    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
192      and advect_cs (use EXCH-2 and standard cs-32 grid files).
193    o pkg/exch2: filling of face-corner halo regions is optional
194      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
195    
196    checkpoint57l_post
197     tag before updating tutorials (pre-release-2)
198    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
199       for output and interpolation of input fields onto model grid)
200    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
201       Affects results of exp. rotating_tank ; update output.txt.
202    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
203          and taking the square quantity and/or using a fraction-weight field.
204    o fix aim_diagnostics_init.F mate numbers.
205    o add mnc output capability to diagnostics/diagstat and update
206      our cvsignore files for the ACSII output generated
207    
208    checkpoint57k_post
209    o lab_sea now uses diagnostics package and provides a suite of
210      new EXF diagnostics output.
211    
212    checkpoint57j_post
213    o exf
214      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
215        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
216        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
217      * extended diagnostics output
218        - now includes all EXF variables
219        - hs, hl moved to common block
220        - separate S/R for diagnostics, called after ctrl vector is added
221        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
222        - EXFqnet contains true Qnet (i.e. includes qsw)
223      * updated verif. lab_sea, global_with_exf
224      * Rearranging hflux (exf_mapfields -> exf_getforcing)
225        to ensure that diagnostics sees a true EXFqnet
226    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
227    o diagnostics pkg: change pointers so that 1 diagnostic can be used
228      several times with different frequencies.
229    o mnc-ify the thsice package as requested by Daniel Enderton
230      - the monitor--MNC output needs work
231      - many attributes need to be added (most are currently blank)
232    o mnc-ify theaim_v23 package as requested by Daniel Enderton
233      - many attributes need to be added (most are currently blank)
234    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
235    o add Sadourny like discretization to the 4th.O vorticity advection scheme
236    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
237      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
238         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
239    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
240     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
241    
242    checkpoint57i_post
243    o Diagnostics package was changed: diagnostic allocation is now deactivated
244      by setting an empty file name in the namelist (used to be by setting 0 frequency)
245    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
246      add 1rst Order upwind vertical Shear.
247    o add a quick fix for A/B checkpointing in OFFLINE mode
248    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
249      end-run around the C/Fortran linking horror in eesup/src/timers.F
250    o added pkg/runclock: allows user to terminate run based on wall clock
251    o added non-hydrostatic scaling parameter: nh_am2
252    o pkg/my82: futile attempt to make results compiler-independent by adding
253      some "_d 0", etc. no effect.
254    o for mnc output, fill the 'T' coordinate var with myTime and create a
255      separate 'iter' variable for iteration count
256    o pkg/diagnostics:
257      add new capability: output of Global/Regional & per-level statistics ;
258      tested against monitor output (including land & thSIce) on various exp.
259    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
260    
261    checkpoint57h_done
262      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
263      data.diagnostics, data.gchem, data.ptracers) is done.
264    
265    o pkg/diagnostics: prepare for Global/Regional statistics.
266      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
267    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
268      and rename it: DIFFERENT_MULTIPLE
269    
270    checkpoint57h_post
271    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
272    o pkg/diagnostics: change output frequency, now in seconds (instead
273      of Nb of iterations). This requires to change data.diagnostics.
274    checkpoint57h_pre
275    
276    o in mnc, let the user create the output dir if both mnc_outdir_date
277      and mnc_outdir_num are false
278    o add fflags() to pkg/diagnostics which allows one to specify, on a
279      per-file basis, the file precision [default behavior is unchanged]
280    o added diagnostics to pkg/kpp, including computation of mixed layer
281      depth based on a temperature/density criterion
282    o updated verification/natl_box to test the new pkg/kpp diagnostics
283    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
284    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
285    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
286      not mnc -- this mistake was found by JMC and is now corrected
287    
288    checkpoint57g_post
289    o add Adams-Bashforth 3rd Order time stepping:
290      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
291      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
292    checkpoint57g_pre
293    
294    o make lambda[Theta,Salt]ClimRelax spatially varying
295      (default remains spatially uniform constant based on tau)
296    o added new control variables
297      * init. uVel, vVel, etanN
298      * lambda[Theta,Salt]ClimRelax
299    o separate masks used for ctrl_pack/unpack 'from write_grid' output
300      (suggested by G. Forget)
301    
302    checkpoint57f_post
303    o add parameter "baseTime" = model base time = time at iteration zero
304      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
305      account for baseTime shift
306    o move Coriolis arrays from PARAMS.h to GRID.h
307    checkpoint57f_pre
308    
309    o mnc-ifying the seaice package
310    o introduced an alternative length scale calculation for use in the limiting
311      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
312    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
313    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
314      as well as grad(vort3).  Made it compatible with both approximate form
315      for the cubed sphere and full form of these gradients.  Added flag
316      useFullLeith to select between approximate and full form.  
317    o add "d0" in getcon.F to reduce differences between compilers/platforms
318      update output.txt of exp. fizhi-gridalt-hs
319    o change port_rand funtion to allow to set the seed.
320    o fix obscure MNC bug involving conversion between reals and integers
321      - it caused no problems with certain (eg. gcc, ifc) compilers but the
322        new version is now more standards-compliant
323    o adjoint-related modifications
324      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
325      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
326      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
327    
328    checkpoint57e_post
329    o Adding eddy stress controls a la Ferreira et al.
330    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
331    
332    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
333      update output.txt of exp. fizhi-gridalt-hs
334    o add more "Z" dimensions and associated coordinate vars to MNC
335    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
336    o parameter calendarDumps: when set, approximate months (30-31 days) and years
337      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
338      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
339      months and years.  Requires pkg/cal.
340    o diagnostics: add pickup functionality
341      - off by default for backwards compatibility
342      - current version only uses MDSIO -- MNC will be added
343    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
344    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
345    
346    checkpoint57d_post
347    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
348    o modify verification/ideal_2D_oce so that it tests the creation of mnc
349      output from the diagnostics package
350    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
351    o make genmake2 more portable by using ".$FS" instead of ".f" for more
352      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
353    o add coordinate variables to the MNC output from the diagnostics package
354    o change MNC-flags default value: true when useMNC=TRUE
355    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
356      the ability (off by default) to read the grid information using MNC
357    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
358    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
359    o do snap-shot diagnostics at the middle of the time-interval (instead of
360      at the end).
361    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
362      new test for AIM with thSIce + slab-ocean
363    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
364    o move state variable diagnostics to the beginning of the time step ;
365      (note: still needs some work specially for snap-shot diagnostics)
366      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
367    
368    checkpoint57c_post
369    o Change testing option (-ieee) to get closer agreement between g77 & ifort
370    o generate new output.txt files on faulks with g77 & the new -ieee option
371    checkpoint57c_pre
372    
373    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
374      update output.txt of exp. global_ocean.90x40x15
375    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
376      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
377    o add saltFlux(+File) forcing capability with periodicExternalForcing
378    o allow to use pkg diagnostics for GM-Redi & ThSIce output
379    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
380    o improvements for the MNC output from DIAGNOSTICS:
381      - correct handling of the unlimitied dimension
382      - all dims now have associated coordinate variables
383      - variables located at U, V, and Corner ("Z") points are now written
384        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
385        *all* data points are output
386    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
387    o added pkg/seaice/seaice_monitor.F
388    o mdsio_readfield.F can now read files visible only to master MPI process.
389    o pkg/seaice: some test code for ice-modified ocean stress
390    o exf_getffields interpolation defaults to bilinear for all scalar forcing
391      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
392      spurious negative numbers for precipitation and humidity.  Will cause
393      some small numerical differences for integrations using pkg/exf/exf_interp.F.
394    o pkg/ctrl/
395      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
396        May be enabled via doPackDiag
397      *  introduce z-scaling of
398         + gradient (doZscalePack) and
399         + control (doZscaleUnpack)
400    o pkg/mdsio/
401      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
402      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
403    
404    checkpoint57b_post
405    o simplify options in diagnostics_fill arguments (remove weird combinations)
406    o fix MNC coordinate variables so that they now contain per-face index
407      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
408      general, EXCH2 grids are only aligned to a "local" coordinate system
409    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
410    o Implement instantaneous output within pkg diagnostics:
411      setting a negative frequency in data.diagnostics produces
412     "snap-shot" output (as opposed to time-average if freq > 0)
413    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
414      NOTE: change ptracer diagnostics name: use 2 characters to work with
415            more than 9 tracers. Add also diagnostics of advect & diffus flux.
416    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
417      becomes the coordinate variable for the 'T' dimension
418    o add CF-style coordinate variables to MNC
419      - just a first cut:  numbers are meaningless on the cubesphere and
420        missing along the T axis but otherwise it works!
421    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
422    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
423    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
424      this is based directly on what the model compute, so that the content of
425      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
426    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
427    o clean up build options files for SunOS, in particular
428      - remove -traditional from xmakedepend
429      - change -xarch=v9 to -xarch=native for f77
430      - restore use of make (not gmake)
431      - add CC=gcc if using g77
432    o changes per discussion of AM, JMC, & EH3 today:
433      - move redundant "grid" variables out of "state" -- in preparation of
434        creating proper CF-style coordinate variables and in recognition
435        that any/all grid variables can be easily copied (eg. w/NCO) from
436        the grid files into any of the other NetCDF files
437      - *always* output grid variables with MDSIO (this will eventually be
438        changed)
439      - output MNC grid file if useMNC is true
440    o every instance of _END_MASTER() has been found and replaced with
441      _END_MASTER( myThid ) in order to satisfy certain picky Sun
442      preprocessors
443    o re-arrange diagnostics pkg initialisation:
444     - allow each package to extend the available diagnostics list
445     - add some checking and fix small problems (multi-threaded, ...)
446     - new S/R diagnostics_fill (replace fill_diagnostics):
447       look through the short list of active diag. (instead of the long list)
448       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
449    
450    checkpoint57a_post
451    o this set of changes restores TAMC compatibility
452      tested for global_ocean.90x40x15 adjoint on trough
453      (what a pain)
454    
455    checkpoint57a_pre
456    o some modifs in tools/build_options for sunos
457    o call ctrl_pack for ctrl at end for optimcycle=0
458    
459    checkpoint57
460    o add horizontal bi-harmonic viscosity for vertical velocity
461      - new parameter viscA4W (defaults to viscA4)
462      - affects only non-hydrostatic code
463      - to be done: no-slip lateral boundary conditions
464    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
465    o implement Implicit Vertical advection for pTracers
466    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
467      (implemented also for implicit vertical diffusion & advection)
468    o OBCS: extend application of tracer open boundary conditions
469      to a strip beyond the boundary of width Olx/Oly
470    o add call monitor to TAF set of required calls (flow directives)
471      and include in natl_box_adjoint
472    o untangle a few ifdefs related to cost, ctrl, autodiff
473      untangel a few ALLOW_ECCO_OPTIMIZATION
474    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
475      (theta2, salt2 in ecco_cost_weights)
476    
477    checkpoint56c_post
478    o OBCS as control variables
479      - update ctrl_ad_diff.list, obcs_ad_diff.list
480      - remove balance of obcs controls from default
481      - fix index bug nobcs in ctrl_init
482      - fix dummy fields filen in ctrl_pack
483      - add dummy weights for obcs
484    o lsopt: comment out fort.94 output
485    o optim:
486      - remove unnecessary header files
487      - adjusted namelists
488      - add xerbla.F to Makefile
489    o exf:
490      - multiple modifications of exf_check_range
491      - unit change in exf_init_runoff from [m/year] to [m/s]
492    o mdsio:
493      - i/o-vector change debugLevel from debLevA to debLevB
494    
495    checkpoint56b_post
496    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
497      is called from DO_THE_MODEL_IO
498      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
499      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
500      - clean up PTRACERS_WRITE_TIMEAVE a little
501    o add another verification experiment that tests both the cfc-pkg and
502      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
503      reactive tendencies treated inline with regular timestepping
504    o testreport previously did a lousy job of comparing small numbers, so
505      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
506      implemented in the little c-progam tmp_cmpnum.c which is embedded in
507      testreport.
508    o ptracers_monitor: bug fix for MPI
509    
510    checkpoint56a_post
511    o GCHEM: finish reorganizating the package
512      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
513        (introduces another 3D-array for each passive tracer, but only if
514        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
515        gchemTendency is not needed because the timestep is done separately)
516      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
517      - GCHEM is now---more or less cleanly---separate from PTRACERS
518      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
519        so clear to me how that should be done in a general way.
520    o CFC: improve formatting of output in CFC_ATMOS
521    o PTRACERS:
522      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
523        that ALL experiments with ptracers enable can be checked. This makes
524        GCHEM_MONITOR obsolete.
525      - include a runtime parameter PTRACERS_monitorFreq that defaults to
526        monitorFreq
527      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
528    o add PTRACERS (PTR0[1-5]) to testreport output
529    o exf_check_range:
530      * default changed to .TRUE.
531      * will check values for niter0 if debLevA, every timestep if debLevB
532      * STOP in exf_check_range if 'out of range'
533      * range chosen generous to allow for potential extema
534      TBD: a version with stricter range
535           permitted range would be runtime parameters
536    o GMredi:
537      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
538      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
539      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
540    o GCHEM:
541      - move call to GCHEM_FORCING_SEP, so that it is now called before
542        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
543      - introduced a useGCHEM runtime flag and applied it everywhere.
544      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
545        this flag is now only visible within GCHEM-pkg routines.
546      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
547        be replaced by a 3D array that is computed before thermodynamics; for
548        this, the tracer ID iTracer had to be included into the parameter list
549        of ptracers_forcing
550      - set up forward_step to call gchem_forcing, that will replace
551        gchem_forcing_int in ptracers_forcing
552      - cleaning up
553    o small cleaning of exch2: remove files that are also in eesupp/src
554    
555    checkpoint56
556    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
557    o mnc: cleanup "full" files--fixes out-of-memory problem
558    o ECCO-GODAE
559      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
560      * fully merged and updated from SIO code
561        windstress sign change affects
562        - exf_inscal_[u/v]stress
563        - sign of xx_tau[u/v] adjustments
564        - signs in cost_scat
565      * ctrl_get_gen: avoid update of tau[u/v] for first few days
566      * natl_box_adjoint updated and compressed
567      * 2-level checkpoint switch added
568        (tested in EXP. 1 of natl_box_adjoint)
569      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
570    o SVD
571      * first complete, non-hacked version for SVD calculations
572      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
573        performed via direct access files admtlm_vector.it????
574        (via ctrl_[un]pack)
575      * optimcycle is used for ARPACK iteration counter
576        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
577      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
578        and add linear transforms where necessary
579      * controls are initial/final SST, SSS (can be extended; need to check
580        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
581    o mdsio: filename info to both stderr, stdout
582    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
583      from sign change
584    
585    checkpoint55j_post
586    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
587      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
588    o add consistent build directories and .cvsignore files to verification
589    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
590    o make all subroutines 30 or less characters in length for certain older
591      compilers to work (a thorough search only turns up two routines in
592      pkg/ptracers)
593    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
594      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
595    
596    checkpoint55i_post
597    o change arrays for total vertical diffusivity (2.D if explicit,
598      3.D if implicit) ; each ptracer uses its own background value.
599    o added mnc/NetCDF output capability to ocn_compon_interf
600      - added bits to verification/cpl_aim+ocn so that it can run on
601        ITRDA and other clusters without the mpirun "-wd" option
602    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
603      configuration
604    o give MNC the ability to create additional files rather than
605      exceeding a specified file size limit "MNC_MAX_FILESIZE"
606      - the default is just less than 2GB which is a practical limit
607        on many systems
608    o Compute the non-local term using either KPP vertical diffusivity (=default)
609       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
610    
611    checkpoint55h_post
612    o add verification test "vermix"
613    o remove all the *_ioinc flags and replace with the single global
614      outputTypesInclusive flag
615    o allow to set a vertical profile of vertical diffusivity for T & S
616    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
617    o useMNC moved from data.mnc to data.pkg
618    
619    checkpoint55g_post
620    o Renaming carbon AD experiments to comply with testreport conventions
621    o Updating adjoint of Held-Suarez hs94.1x64x5
622    o Fixing directives for non-ECCO forward_step, after ECCO directives
623      have been fixed to avoid recomp. of do_oceanic_phys
624      Works well for global_ocean.90x40x15,
625      but recomp. issue remains for carbon
626    o Updating adjoint output for natl_box_adjoint after
627      pkg/ecco has been modified (see taga c55d_post)
628    
629    checkpoint55f_post
630    o rename to timeave_init_fixed
631    
632    checkpoint55e_post
633    o some delicate re-shuffle of store directives to avoid one
634      extra call of do_oceanic_physics
635      affects ecco_the_main_loop.F, do_oceanic_physics.F
636      checkpoint_lev1_directives.h
637    o NB: this may break global_ocean adjoint temporarily,
638      but it is clear how to fix it. Will do later, need this now.
639    
640    checkpoint55d_post
641    o ECCO specific cost function terms (up-to-date with 1x1 runs)
642    o ecco_cost_weights is modified to 1x1 runs
643    o modifs to allow observations to be read in as
644      single file or yearly files
645    o enable to read exf forcing fields as either
646      single file or yearly files (flag useExfYearlyFields)
647    checkpoint55d_pre
648    
649    o switch between 2-level and 3-level checkpointing
650    o add ability of MNC to write local and "partial" (eg. 2D slices where
651      the full 3D field is never actually stored) arrays to NetCDF files
652      with the correct (that is, the complete multi-dimensional) set of
653      array indicies
654      - used in mom_vecinv() to write the diagFreq output
655      - tested (demonstrated) in verification/aim.5l_cs
656    o further mnc-ification
657      - add verification/lab_sea to the list with mnc setups
658      - fix undefined mnc v-names in cd_code
659      - add kpp to mnc output (both snapshot and timeave)
660    o non-hydrostatic code
661      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
662        in calc_gw.F
663      - defaults to viscAh
664      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
665        friction or Leith) in non-hydrostatic mode, as long as there is
666        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
667    o pkg/cost
668      extend simple cost functions to treat time mean quantities
669      (T,U,V) via cost_accumulate_state from cost_tile
670    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
671        be 2 times larger than the minimum size the advection scheme requires.
672        now get a perfect conservation of salt in advect_cs test-exp (updated)
673    o GGL90 (Gaspar's TKE mixed layer)
674      - add horizontal diffusion of TKE, requires exchanges in
675        do_fields_blocking_exchanges, horizontal diffusivity is zero by
676        default. In OPA there is no horizontal diffusion of TKE but the
677        mixing coefficients are computed from a horizontal average of TKE of
678        6 points or so. I think that diffusion has a little more physical
679        justification.
680      - clean up ggl90_calc in the hope of reducing memory usage (this hope
681        was in vain)
682      - mask tke-variable in ggl90_init
683    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
684    o fix biharmonic diffusion on CS-grid.
685    o more obcs stuff
686      - added obcs_external_fields_load as an alternative to the EXF-pkg option
687        for reading boundary values. This routine is called from
688        obcs_prescribe_read
689      - updated obcs_check
690      - changed sponge layer relaxation parameter units for days to seconds
691      - turned off sponge layer by default
692      - changed argument list of OBCS_CALC to myTime+deltaTclock
693      - fixed about 35 bugs in obcs_external_fields_load
694    
695    checkpoint55c_post
696    o obcs stuff
697      - new runtime flags useOBCSprescribe, useOBCSbalance
698      - re-arranged obcs_calc
699      - moved exf_getobcs to obcs_prescibe_read
700        obcs_prescibe_read is called after ORLANSKI stuff
701        and independent of it (executable can contain all).
702      - updated obcs_check
703      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
704        These may be necessary only if tangential velocities are
705        prescribed at OB, not sure, needs testing.
706    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
707      which simplifies the calls and passes the ifc check-bounds test
708    
709    checkpoint55b_post
710    o add a 2D scalar, Z location, exchange_2 routine.
711    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
712      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
713      affects advect_cs results (for the wrong reason): update output.txt
714    o use a more standard discretization for biharmonic viscosity ;
715     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
716      affects results of dome set-up: update output.txt
717    o fix gad_advection.F (CubedSphere part), back to version 1.23
718    o fix bug in mom_vi_del2uv.F (CubedSphere part).
719    
720    checkpoint55a_post
721    o merged code to
722      * prescribe/read time-dependent open boundaries
723        (works in conjunction with exf, cal)
724      * sponge layer code for open boundaries
725      * each boundary N/S/E/W now has its own CPP option
726        (healthy for the adjoint)
727    
728    checkpoint55
729    o up-to-date adjoint of previous breaks
730      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
731      - global_ocean_ebm: adjoint still needs fix (TLM ok)
732      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
733      - carbon: * remove tr1-related adjoint verification
734                * add ptracer as control variable
735    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
736      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
737    
738    checkpoint54f_post
739    o in verification/carbin/ remove experiment related to
740      ALLOW_PASSIVE_TRACER (array tr1 etc)
741      code_ad/ input_ad/ results_ad
742    
743    o add two new packages
744      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
745        + subject to optimization (memory)
746      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
747        + subject to reordering (many GOTOs in the original code)
748        + so far opps is called for every (i,j) point, and then operates in
749          the vertical; one may want to reorder the scheme in order operate in
750          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
751          fields)
752    o overhaul of IO so that we now have flags for MDSIO and/or MNC
753      - all verification tests compile and run with linux_ia32_g77
754      - defaults are compatible with current input files--nothing
755        should change if you were not previously using MNC
756      - MNC output has been added in numerous places (eg. timeave)
757        but there are still a few writes not yet do-able with MNC
758        (this is in progress)
759      - flags now allow for either/or/both use of MDSIO and MNC and
760        documentation will soon follow
761      - numerous small formatting cleanups for ProTeX
762    o add version info (via BUILD_INFO.h) to MNC and stdout
763    
764    checkpoint54e_post
765    o add two new packages
766      - pp81 (Packanowski and Philander, 1981), Richardson number and
767        stratification dependent mixing
768      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
769      - these scheme operate in a similar manner as KPP (without ghat, of
770        course), however there is only one diffusivity that is used for both
771        temperature and salinity (and passive tracers)ç
772    o add offline package
773    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
774      provided by Stephanie Dutkiewicz
775    o genmake2: add ability to search for C compilers and cleanup test output
776      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
777    
778    checkpoint54d_post
779    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
780    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
781      leading to additional shift by 5 days each year of integration
782       (i.e. leading to considerable offset over the years)
783    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
784    o start with no AB and no initial filtering (staggerTimeStep):
785      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
786    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
787      (external loading & cpl import/export stay in forward_step.F)
788    o update coupling interface to work with new staggerTimeStep
789    o change MDSIO ptracers_pickup.
790    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
791    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
792    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
793    
794    checkpoint54c_post
795    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
796      this affects (truncation error) output.txt of test-exp:
797       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
798    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
799    o change Qnet to always be the net heat flux, (+upward).
800      affects (truncation error) output of natl_box exp.: updated
801    o define the max number of passive tracers in PTRACERS_SIZE.h
802    o start to test mnc routinely in exp0
803    o add sea-ice loading (sIceLoad) as a new forcing field.
804    
805    checkpoint54b_post
806    o add testreport "-j JOBS" option for parallel builds (tested and pretty
807       impressive on Altix and Opteron systems)
808    o diagnostics can now write NetCDF files through the mnc package
809    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
810    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
811    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
812      affects (truncation error) output of lab_sea & natl_box exp.: updated
813    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
814    
815    checkpoint54a_post
816    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
817    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
818    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
819    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
820      + internal_wave (shift in writing cg2d_ini_res)
821    checkpoint54a_pre
822    
823    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
824      - modified verification/lab_sea and natl_box_adjoint accordingly
825    
826    checkpoint54
827    checkpoint53g_post
828    o prepare splitting of thermodynamics: store convect.counter in common block
829    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
830      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
831    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
832    o new parameter "nShapS": allow to treat differently S from T (nShapT)
833    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
834    o restore adjointability
835    
836    checkpoint53f_post
837    o modifications that affect AIM experiment results (update output.txt):
838      - no advection of S at top interface Nr (pkg/generic_advdiff)
839      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
840    o AIM pkg:
841      - include stability function into surf.Flux derivative relative to Tsurf
842      - calculate clear-sky radiation & surface temp. change (for diagnostics)
843    
844    checkpoint53e_post
845    o merged cylindrical coord configuration
846    o added rotating_tank experiment
847    checkpoint53e_pre
848    
849    checkpoint53d_post
850    o faulks upgraded: re-generate output.txt that have changed:
851       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
852    o Added Bryan and Lewis, 1979, vertical diffusivity profile
853    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
854    o added Sadourny discretization of Coriolis
855      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
856      - re-enabled use of omega3 (useAbsVorticity)
857    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
858      vector-invariant equations
859      - note: does *NOT* yet use same variable visc. for no-slip BC's.
860    o recoded the lateral boundary conditions for non-hydrostatic w, this time
861      hopefully without new bugs
862      - still to do: biharmonic friction for non-hydrostatic w
863    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
864    o regenerated output for global_ocean_ebm (using -ieee)
865    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
866      of mom_common/
867      - simple re-arrangement of instructions within computing loop
868    checkpoint53d_pre
869    
870    checkpoint53c_post
871    o new version of coupler for AIM+thSIce and Ocean models
872     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
873     - land: change Evaporation of snow
874     - aim with thSIce: fix bug in snow-precip.
875    o changes to calc_gw.F
876     - bug fix for w^2 term near the bottom boundary
877     - (hopefully) improve the lateral slip boundary condtions for use with
878        partial/looped cells
879      - because the bug fix changes two verification experiments anyway (exp5
880        and plume on slope), change the lateral boundary condition from half slip
881        to the value of no_slip_sides
882    o ebm package wasnt quite up to the parallel task. Fixed that.
883    o Adjoint of EBM package + verification
884      * TLM OK
885      * ADM not sufficient accuracy yet (needs further testing)
886    
887    checkpoint53b_post
888    o Commiting new energy balance model to repository
889      * package is pkg/ebm
890      * verif. is verification/global_ocean_ebm
891      * references are in ebm_driver.F
892    C      * X. Wang, P. Stone and J. Marotzke, 1999:
893    C        Global thermohaline circulation. Part I:
894    C        Sensitivity to atmospheric moisture transport.
895    C        J. Climate 12(1), 71-82
896    C      * X. Wang, P. Stone and J. Marotzke, 1999:
897    C        Global thermohaline circulation. Part II:
898    C        Sensitivity with interactive transport.
899    C        J. Climate 12(1), 83-91
900    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
901    C        Destabilization of the thermohaline circulation
902    C        by atmospheric eddy transports.
903    C        J. Climate 7(12), 1870-1882
904    o Will need long integration testing.
905    checkpoint53b_pre
906    
907    o created pkg/mom_common in preparation for variable viscosity code
908    o renamed and split ini_mnc_io
909    o pkg/land: only liquid water can diffuse or run-off
910    o AIM using land: soil wetness availability account for snow
911    o added printMapIncludesZeros to EEPARMS namelist
912    
913    checkpoint53a_post
914    o restore TAMC compatiility for exf_constants.h
915      (no usage of _d in .h)
916    o Additional storing in KPP in an attempt to fix
917      TAMC problem with adjoint of KPP code.
918      (no success...)
919      Identical code works fine with TAF.
920    o Fixed verification/natl_box_adjoint experiments.
921      Initial conditions for Experiments 4 and 5 are now
922      set to "SEAICE_initialHEFF=0", which is more reasonable,
923      and hence gives results closer to that of Experiment 2.
924      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
925    
926    checkpoint53
927    o stable checkpoint with up to date adjoint
928      TLM tests only run for 1st grdchk at the moment. Its unclear if
929      this is a code problem or a problem with resetting code for g_
930      variables that is being autogenerated wrong.
931      Otherwise:
932       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
933       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
934         are both still in chaos following their security messes.
935    
936    checkpoint52n_post
937    o various build (mostly genmake2) changes including:
938      - ability to build/run more easily within Cygwin and MacOS X
939      - more complicated Makefiles with a stronger dependence on Gnu Make
940    o pkg/seaice modifications
941      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
942        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
943        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
944      - changed proxy for geostrophic velocity and updated
945        verification/lab_sea/results/* accordingly
946      - removed ADI dynamic solver from pkg/seaice
947      - replaced all occurrences of 1/CSTICE or 1/CSUICE
948        they caused a segmentation fault under certain circumstances
949      - removed unused field WATR
950    o bug fix in exf-package:
951      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
952         now reflect that.
953    o small fixes in the cal-package:
954      - set reference date to first of January for the 'model'-calendar
955      - failing of cal_CheckDate in cal_FullDate now actually results in a
956        warning
957    o small modifications in exf-package to increase flexibility:
958      - change climtempfreeze from a constant to a runtime parameter that
959        is specified in data.exf_clim (default = -1.9)
960      - introduce runtime parameter windstressmax (default = 2.0) that is
961        specified in data.exf
962    o fix in pkg/thsice:
963      - update Evap (Tsf changes) to be consistent with Latent heat flux
964      - maintain snow precipitation unchanged (even if Tsf >=0).
965     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
966    
967    checkpoint52m_post
968    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
969      this does not change any of the results, because myIter=0 in swfrac always
970      lead to jwtype=2 (the default anyway), but the call makes little sense
971      as a default
972    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
973    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
974      atmospheric model (AIM) to use it ; add a "slab ocean" component.
975    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
976    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
977    o extending useSingleCpuIO option to work with new exch2 I/O format
978      - old-style, missing-tile I/O is still accessible by defining CPP
979        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
980    o monitor package can write to NetCDF files and/or STDOUT
981    o fix re-definition bug in MNC_GRID_INIT_ALL()
982    o doc/api_reference added
983      - a framework for building an API Reference Manual using all
984        the "protex" comments embedded in the code
985      - see pkg/generic_advdiff, pkg/mnc for examples
986    o MNC:
987      - make myThid the last argument for all subroutines
988      - new default for the grid files: NO halos
989      - add useMNC and other run-time flags
990      - separate per-file-group handling of the unlimited dimension
991      - early initialization of MNC w/ flags read at the eeboot stage
992        and lookup tables set in initialize_fixed
993      - write all MNC output to a freshly-created directory
994    o thermodynamics sea-ice (thsice) is now tested with testreport.
995    o test exp. advect_cs: use the standard cs32 grid ; update output.
996    o Added functionality to grdchk:
997      pick global i,j,k position (or nearest wet) where to perform check.
998    
999    checkpoint52l_post
1000    o new land formulation:
1001      a) use ground enthalpy as prognostic variable to ensure exact
1002         energy conservation.
1003      b) account for water temperature and for latent heat of freezing
1004         in all processes (rain, run-off, ground storage)
1005      c) compute surface and ground temperature implicitly.
1006    o aim_v23 modification for new land model:
1007      a) Treat separately land / ocean / sea-ice surface fluxes
1008         to allow implicit computation of land & sea-ice surface temp.
1009      b) add snow precipitation.
1010    checkpoint52l_pre
1011    
1012    o fix problem (when 1 tile is empty) in min/max monitor.
1013    o fix bug in timeAve (u,vZetatave in common block)
1014    o no restoring terms under ice for pkg/seaice
1015    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1016    o bug fix for pkg/seaice pickups
1017    o change MNC call locations and add coordinate attributes
1018    o mask vorticity at the corner ; affects global_ocean.cs output
1019    o fix ini_curvilinear_grid ; test CS experiments with mpi
1020    o aim.5l_cs: modify sea-ice fraction input file ; update output
1021    o exf: Adding simple range check routine for exf fields after read
1022    
1023    checkpoint52k_post
1024    o removed top-level directory "diags"
1025      - we migrated these functions to pkg/timeave a long time ago
1026    o fixed bug introduced in pkg/monitor
1027    o accuracy ctrlprec = 32 insuffient for gradient checks using
1028      averaged fields (I/O via cost_averages)
1029      -> use ctrl.h in active_file*.F to control I/O precision.
1030    o paramter list of CALL ADTHE_MAIN_LOOP
1031    o added initial do_the_model_io to ecco
1032    o set all ...Freq to zero after cost_final
1033      taveFreq, dumpFreq, pChkptFreq
1034    o MAIN and ECCO differentiability restored
1035    
1036    checkpoint52j_post
1037    o fix nchklev in tamc.h for global_ocean...
1038    o Bringing flow and store directives up-to-date
1039    o Really weird thing!
1040      call do_the_model_io from the_main_loop with parameters
1041      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1042      TAF places a faulty re-call of initialise_varia
1043      after cost_final call which should not be there!
1044    checkpoint52j_pre
1045    
1046    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1047      error messages
1048    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1049    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1050      debug output
1051    o modfied mdsio_writefield.F to handle non-global files under exch2
1052    o update AIM Cubed-Sphere exp (aim.5l_cs):
1053      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1054    o update AIM Equatorial Channel exp:
1055      use standard aim_v23 pkg and change the SST fields to be more realistic.
1056    o globalFile now works with exch2
1057    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1058      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1059    o limit timeave output for hi-res integrations
1060    
1061    checkpoint52i_post
1062    o removed CPP_EEOPTIONS.h from verification/*/code
1063    o updated the tiling for global_ocean_pressure
1064    checkpoint52i_pre
1065    
1066    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1067      the old pkg/aim).
1068    
1069    checkpoint52h_pre
1070    o shortened offending lines in exch2_send_rx?.template
1071    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1072    o genmake2: add build & execute test for NetCDF code
1073    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1074      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1075    o added useSingleCPUIO flag to monitor.F and mon_out.F
1076    o added temporary hack for sea-ice dynamics on the cube:
1077      metric terms are ignored and it is assumed that
1078      there is no sea-ice on cube faces 1, 2, 4, and 5.
1079    
1080    checkpoint52f_post
1081    o added exch2 cube routines to pkg/exch2
1082    o modified hs94.cs-32x32x5 to use it
1083    o added new grid files to hs94.cs-32x32x5
1084    checkpoint52f_pre
1085    
1086    checkpoint52e_post
1087    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1088      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1089    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1090      to work with implicit vertical advection and AB ;
1091    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1092    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1093     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1094    checkpoint52e_pre
1095    
1096    o fix bug in impldiff when Nr=1 or Nr=2.
1097    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1098    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1099    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1100      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1101    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1102    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1103    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1104    
1105    checkpoint52d_post
1106    o re-tiled many expts to allow comparison in multi-processor mode
1107      - updated output accordingly
1108      - changed hs94.128x64x5 to use intial T from file rather than use the
1109        random number generator
1110    o add infrastructure in model routines for fizhi and gridalt packages
1111    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1112    o changes to permit hi-res, cubed-sphere, configuration
1113      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1114      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1115      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1116        of surface winds for the cube
1117      (A verification experiment, based on global_ocean.cs32x15, but with
1118       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1119       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1120       complete with example surface forcing files and matlab scripts to look
1121       at the output and compare it with that of global_ocean.cs32x15.)
1122    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1123       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1124       to conform to the common rule.
1125    o check-in the first version of the coupler + interfaces for multi-components
1126       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1127       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1128       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1129       - ocean and atmos. share the same horizontal grid (no interpolation).
1130       - exchanges between component and coupler is done in forward_step
1131    o new verification experiment, cpl_aim+ocn:
1132       coupled ocean - AIM atmosphere on cs32 grid.
1133    
1134    checkpoint52d_pre
1135    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1136    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1137    
1138    checkpoint52c_post
1139    o Fixing OPTIONS files for use of exf:
1140      - ALLOW_ECCO not needed
1141      - ECCO_CPPOPTIONS.h should not be included from
1142        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1143        as has been the case in the past
1144      - All cal/exf related options are currently set in
1145        single header file. Should remain so until we
1146        agree on a consistent new policy.
1147    o Removed all CPP options for cal package.
1148      cal has no more CPP options.
1149    o modified STOREs in GAD_ADVECTION
1150    o corrected key comp. for passkey
1151    
1152    checkpoint52b_post
1153    o new version: "thsice" of thermodynamic sea-ice pkg:
1154     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1155     - modify fluxes but do not change theta directly;
1156     - light cleaning of bulk_force pkg (still needed with thsice).
1157     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1158       + output_thsice.txt to test thsice & bulk_force pkgs.
1159    o put back grid & coriolis monitor output.
1160    checkpoint52b_pre
1161    
1162    o call "do_the_model_io" at the beginning (=> dump initial state)
1163    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1164    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1165      (need info on NUMBER_OF_PTRACERS)
1166    o missing PTRACERS headers in some routines
1167    o default tamc.h in pkg/autodiff supposed to crash
1168      to ensure proper customization
1169    
1170    checkpoint52a_post
1171    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1172      - moved surfaceTendencyTice from pkg/seaice to main code
1173      - subroutine FREEZE_SURFACE now limits only surface temperature
1174        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1175        => new output.txt for global_ocean.cs32x15 & global_with_exf
1176      - keep the old version of FREEZE for backward compatibility;
1177        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1178      - corresponding modifs for TAF directives
1179    o added surface flux output variables to TIMEAVE_STATVARS
1180    o time-averaged output for pkg/ptracers
1181    o fix problem with ECCO-related divided adjoint
1182      snapshot file was missing some ad-variables,
1183      but no warning issued by TAF
1184    
1185    checkpoint52a_pre
1186    o some bug fixes for #undef REAL4_IS_SLOW
1187    
1188    checkpoint52 = ecco_c52_e35
1189    o after testing adjoints of checkpoint51u_post
1190    
1191    checkpoint51u_post
1192    o this is the post-merge tag of the ecco-branch
1193      (needs another clean checkout and re-testing)
1194    o various natl_box_adjoint configs and results
1195      but no input fields
1196    o obcs adjoint not yet merged!
1197    o adding ECCO global 1x1 and 2x2 degree configs
1198    o updated/extended some store directives for seaice
1199    o pkg/ecco now containes ecco-specific part of cost function
1200    o top level routines the_main_loop, forward_step
1201      supersede those in model/src/
1202      previous input data.cost now in data.ecco
1203      (new namelist ecco_cost_nml)
1204    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1205    
1206    checkpoint51t_post
1207    o this is the pre-merge tag of the ecco-branch
1208    
1209    checkpoint51s_post
1210    o cleanup: removed various obsolete #define-s
1211    o pkg/grdchk
1212      - renamed 'ph-grd 3' to 'grad-res'
1213      - merged from ecco-branch
1214        (remaining bug fixes for obcs gradient checks)
1215      - additional high-precision output for testreport
1216        (grep for 'precision_grdchk_result')
1217    
1218    checkpoint51r_post
1219    o cleaned up or removed CPP_OPTIONS.h files
1220    o updated results for some of the tests to reflect the new
1221      optfiles (-ieee: -O0 instead of -O3)
1222    
1223    checkpoint51q_post
1224    o cd_code:
1225      - moved cd_scheme.F -> cd_code_scheme.F
1226      - separate read_checkpoint from cd_code_ini_vars.F
1227      - separated cd_code part from write_checkpoint
1228      - updated AD_SOURCE, generated .flow
1229      - added CD_CODE_VARS.h to the_main_loop
1230      - Moving cd_code specific store dir.s to pkg/cd_code
1231    o ctrl package totally restructured
1232      - pack/unpack now optional and decoupled from
1233        xx_/adxx_ I/O
1234      - ctrl_pack/unpack cleaned
1235        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1236      - confined inclusion of AD_CONFIG.h to where necessary.
1237    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1238    
1239    checkpoint51p_post
1240    o create initial cd_code package
1241      - WARNING: the initialization of fields within packages
1242        is broken because INI_FIELDS (where READ_CHECKPOINT is
1243        called) is called *before* PACKAGES_INIT_VARIABLES.
1244        This seems to be backwards since
1245        1) its important to initially zero the entire field including
1246           the "halo" region
1247        2) zeroing needs to be done *before* reading pickup info
1248           and the pickup call might or might not happen in any
1249           particular run
1250      - this needs an overhaul for R2
1251    o cleanup verification/*/code/GMREDI_OPTIONS.h
1252    o cleanup testreport
1253    
1254    checkpoint51o_post
1255    o bringing AD-related verif's up to date with genmake2
1256      - carbon/
1257      - global_ocean.90x40x15/
1258      - hs.94.1x64x5/
1259      - (front_relax/ )
1260    o (more) consistent directory structure for AD-related verif.'s
1261    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1262    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1263    o bug fix in find_alpha.F for MDJWF:
1264      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1265        change rho -> rho-rhoConst
1266      - replace call find_rho to find_rhonum
1267    o initialisation of rFlx extended to full array (required by TAF)
1268      and shifted to thermodynamics
1269    o removed PTRACERS.h in ptracers routine
1270    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1271    o Correcting initialisations for fVerU, fVerV.
1272    o helping TAF to recognize dependency on kUp for
1273      fVerU, fVerV
1274    o Replacing delZ by delR in pkg/ctrl/
1275    checkpoint51o_pre
1276    
1277    o undid all of cp51 pending some cleanups and discussion
1278    o added the [#include "AD_CONFIG.h"] statement to all files that need
1279       it for adjoint/tl #defines
1280     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1281     o removed tools/genmake since it no longer works
1282    
1283    checkpoint51n_post
1284    o modifications to make FREEZE flux visible to pkg/kpp
1285      - moved surfaceTendencyTice from pkg/seaice to main code
1286      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1287      - subroutine FREEZE now limits only surface temperature
1288        (this means new output.txt for global_ocean.90x40x15,
1289         global_ocean.cs32x15, and global_with_exf)
1290    o added surface flux output variables to TIMEAVE_STATVARS
1291    
1292    checkpoint51n_pre
1293    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1294    o added [#include "AD_CONFIG.h"] to all files that use the following
1295      defines:
1296      - ALLOW_ADJOINT_RUN
1297      - ALLOW_TANGENTLINEAR_RUN
1298      - ALLOW_ECCO_OPTIMIZATION
1299    
1300    checkpoint51m_post
1301    o incorporating changes to get TAMC/TAF working in genmake2
1302      - added new TAMC/TAF targets to the Makefile
1303      - various cleanups related to package handling
1304      - these changes should have no impact on the forward model
1305    
1306    checkpoint51l_post
1307    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1308     - faster algorithm for cal_addtime.F
1309     - higher precision arithmetic, where needed
1310     - pkg/exf *startdate variables changed from calendar date to
1311       model integration time
1312    
1313    checkpoint51l_pre
1314    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1315    o enable to apply restoring on S & T only in a latitude band.
1316    o update output (external_forcing_surf modif. change truncation errors)
1317       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1318    
1319    checkpoint51k_post
1320    o change default to: useNHMTerms=.FALSE.
1321     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1322       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1323     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1324        exp1, ideal_2D_oce
1325     - change data file of oceanic exp (leave the results unchanged for now)
1326       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1327    o set gravitySign automatically according to the vertical coordinate used
1328      (and change sign: back to "logical" value: +1 when R increases downward)
1329    o added an include barrier to the default CPP_OPTIONS.h and
1330      removed the #include "PACKAGES_CONFIG.h" from it
1331    o fix a bug in mom_fluxform (from chk51j_post)
1332    
1333    checkpoint51j_post
1334    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1335    o adjusted some flow directives (dynamics, thermodynamics)
1336    o added cubed-sphere case to test cost function
1337    o heckpoint_lev?_directives.h now include
1338      pkg-specific directives, whenever those are enabled.
1339    o Moving pkg-specific flow directives to corresponding pkg
1340      Moving pkg-specific differentiation list to corresponding pkg
1341      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1342      ---> conventions are
1343           - pkg_ad.flow
1344           - pkg_ad_diff.list
1345           - pkg_ad_check_lev?_dir.h
1346    
1347    checkpoint51i_post
1348    o merge of the branch-genmake2
1349      - knowingly breaks the older genmake
1350      - automatic generation of all ALLOW_${PKG_NAME} defines
1351      - new testreport supersedes older testscript
1352    o large number of package inclusion and header cleanups
1353    checkpoint51i_pre
1354    
1355    o new output for adjoin of global ocean vector invariant
1356    o fix for checkpoint of thermodynamic seaice and bulk_force
1357    o Steph gchem various cleanups
1358    
1359    checkpoint 51h_pre
1360    o fixed some single quotes
1361    o modify gchem pkg to be more versatile
1362    o modifications to clean up dic pkg
1363    o add pkg/cfc
1364    
1365    checkpoint51g_post
1366    o provide links for ARPACK and ADM*TLM
1367    o start removing verification/vero/
1368    o update AD-related stuff
1369      (in particular some IF-statements in model/src/ routines)
1370    o adding to verification/global_ocean.90x40x15/ adjoint of
1371      vector invariant setup
1372    
1373    checkpoint51f_post
1374    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1375    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1376      of tracer Green's fucntions for ocean inversion project.
1377    
1378    checkpoint51f_pre
1379    o Added on-the-fly spatial interpolation capability
1380        "USE_EXF_INTERPOLATION" to pkg/exf.
1381      - This is a temporary Cartesian-grid hack until
1382        the super-duper ESMF coupler becomes available.
1383      - See verification/global_with_exf/README for usage example.
1384      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1385        flags and modified pkg/seaice accordingly.
1386    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1387        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1388        non-local transport term.
1389    
1390    checkpoint51e_post
1391    o pkg/mom_vecinv:
1392      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1393      - add time-ave diagnostic of vorticity advection.
1394    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1395    o atmospheric geopotential: - include water vapor effect;
1396                                - use p^kappa in p* scaling.
1397    o land pkg: read initial state from files.
1398    o AIM : add stratospheric drag in the upper level
1399    
1400    checkpoint51d_post
1401    o change function ILNBLNK (=> last non-blank char.) to return zero
1402      (instead of the string length) when the string. char is empty
1403    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1404    o modif's to restore TAMC compatibility
1405      - avoid "_d" constructs in PARAMETER declarations
1406      - avoid interrupting lines by comment lines
1407    o Use cluster local disks for purely local I/O
1408      vs. globally visible disks needed for ctrl stuff
1409      (merged from ecco-branch)
1410      - new active_file_loc... and mdsio_..._loc routines
1411      - affected packages: autodiff, ctrl, grdchk, mdsio
1412    
1413    checkpoint51c_post
1414    o introducing integer flag debugLevel
1415      - debLevZero: suppress all output
1416      - debLevA: standard
1417      - debLevB: equivalent to current debugMode=.TRUE.
1418    o introducing pathname variable mdsioLocalDir for mdsio
1419      that can be specified at runtime
1420      (relevant for cluster I/O to local disk)
1421    `
1422    >>>checkpoint51b_post
1423    adjoint of ptracers
1424    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1425    o extended state in checkpoint_lev?, etc.
1426    o alternative ctrl/cost with tr1 or ptracer
1427    o new comlev1_bibj_ptracers
1428    o new ptracers.flow
1429    o made ptracers_forcing same as external_forcing_s
1430    o added verification for adjoint with ptracers
1431      - adm. grdchk fail so far
1432      - tlm. grdchk OK
1433      - checked tapelev/comlev recomputations: OK
1434    <<<checkpoint51b_pre
1435    
1436    checkpoint51a_post
1437    o added code for biogeochemistry package
1438      - new pkgs: dic, gchem
1439      - new subroutine in ptracers
1440    o modify code for biogeo packages
1441      - in model/src and pkg/ptracers
1442    
1443    checkpoint51
1444    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1445      - autodiff, ctrl, exf, grdchk, seaice
1446      kept separate packages
1447      - cost, ecco, obcs
1448    o updating verification/internal_wave, verification/lab_sea
1449      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1450    
1451    checkpoint50i_post
1452    o Preparing next differentiable checkpoint and sync
1453      of MAIN vs. ecco-branch
1454      - 1st step: this one is differentiable
1455      - 2nd step: next(! not this) checkpoint will have updated packages
1456                  from ecco-branch)
1457    
1458    checkpoint50h_post
1459    o new package "land": provide surface BC for AIM.
1460    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1461    o AIM: use true log-P extrapolation for near surface temp (= as in
1462        F.Molteni paper) ; update aim.5l_cs output.
1463    o New variable in PARM03 for more flexible pickups
1464    o somewhat cleaned package initialisation sequence for
1465      ctrl/ cost/ ecco/ in packages_... routines
1466    
1467    checkpoint50g_post
1468    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1469      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1470      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1471        made the default because of faster convergence than ADI
1472    
1473    checkpoint50f_post
1474    o exf totally restructured
1475      - replaced all exf_set_ routines by one generic exf_set_gen.F
1476        and made sure it's still differentiable
1477      - split exf_getffields.F into new exf_bulkformulae.F
1478      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1479      - updated adjoint/makefile and relevant verif. accordingly
1480    
1481    checkpoint50f_pre
1482     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1483          + change Evap over land. (update aim.5l_cs output)
1484     o added missing .cvsignores and made uniform across expts
1485     o changed configuration of tidal_basin_2d expt
1486     o added pkg/debug functions for tracing code in fatal crashes
1487     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1488     o new fn in pkg/monitor to stop model if solution grows too big
1489     o removed lots of single quotes from comments
1490    
1491    checkpoint50e_post
1492    o make KPP work with PTRACERS
1493     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1494       nearly a copy of kpp_transport_s
1495     - there is no analogue to SurfaceTendencyS, so I have to use
1496       gPtr(of the surface layer) instead
1497    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1498    checkpoint50e_pre
1499    
1500    checkpoint50d_post
1501    o change kpp output from multiple-record state files to single-record state
1502      files analogous to write_state.F
1503    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1504      analogous to the cg2d-related output.
1505    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1506      so that writing to internal file fn (with length 512) fails.
1507    checkpoint50d_pre
1508    
1509    checkpoint50c_post
1510    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1511    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1512    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1513    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1514    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1515    
1516    checkpoint50c_pre
1517    Merging from release1_p13:
1518    o bug fix for pkg/seaice dynamic solver
1519    o Added SEAICE_initialHEFF to pkg/seaice
1520    
1521    checkpoint50b_post
1522    o store u*,v* in gU,V instead of in guNm1,gvNm1
1523    o in order to put the momForcing out of the Adams-Bashforth:
1524      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1525      to timestep.F
1526    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1527    o re-generate output for highly sensitive test-exp:
1528       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1529    
1530    checkpoint50b_pre
1531    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1532    o corrected CPP option mismatch in exf_Bulk... functions for case
1533      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1534    
1535    checkpoint50a_post
1536    o Bug fix for merging between c50 and KPP.
1537      ikey was passed from thermodynamics to kpp_calc via
1538      common block rather than being recomputed in kpp_calc,
1539      in contradiction with new key itdkey.
1540      New key ikppkey created, and tamc.h headers updated.
1541    
1542    checkpoint50
1543    - 2nd step of merge with ecco-branch:
1544      merge changes in ecco-branch back into main trunk
1545    - bug fix in find_alpha
1546    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1547    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1548    - merged some sliced AD support routines
1549    
1550    checkpoint49
1551    merged from ecco-branch:
1552    o exf:
1553      - Enable initialisation of forcing fields to constant
1554        (runtime) values.
1555      - in exf_getffields.F
1556        Reduce i-/j-loop to interior domain, discarding overlaps.
1557        That also fixes wrong TAF-key computations for key_1, key_2
1558        with bulf formulae.
1559      - exf_init.F modify #ifdef for exf_init_evap
1560      - exf_getffieldrec.F, ctrl_getrec.F
1561        The following INT-usages are not safe:
1562          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1563          fldcount = int(fldsecs/fldperiod) + 1
1564        and were modified.
1565    o autodiff: checkpoint_lev...
1566      - updated storing for bulk formulae (some arrays were missing)
1567      - added state for seaice package
1568      - synchronized with main branch
1569    o DIVA:
1570      Modif.s in
1571      - the_main_loop.F
1572      - the_model_main.F
1573      and added cost_final_restore.F cost_final_store.F
1574      o With these changes, it is possible to fully separate
1575        the first forward run to compute the cost function (mdthe_main_loop)
1576        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1577        into separate model executions.
1578        This enables better tuning of DIVA to given queue sizes.
1579      o Loss of cost function value in consecutive DIVA runs is
1580        fixed by storing to 'costfinal' file.
1581      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1582        beginning/end of adjoint integration is accounted for.
1583      The current changes apply to TAF-1.4.26.
1584      TAF has one remaining bug, requiring one manual change
1585      (see MITgcm manual).
1586    o cal: synchronized between MAIN and ecco-branch
1587    
1588    checkpoint48i_post
1589    o Changes to restore differentiability of code w.r.t. previous tag
1590      (mostly adding new routines to make list and replacing
1591      pressure by totPhiHyd).
1592    o Updated and merged grdchk package
1593      - has both ADM and TLM checks
1594      - works for single- and multi-proc.
1595      - output cleaned
1596      - worked successfully for parallel DIVA
1597    o genmake:
1598      - Adding -platform=SP4
1599      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1600    o Modif. for DIVA:
1601      ctrl_unpack should not be called in intermediate DIVA interval.
1602      (similar thing would apply for active files such as
1603      tbar, sbar, psbar, which should not be reinitialised;
1604      only relevant for ecco-branch)
1605    
1606    checkpoint48h_post
1607    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1608    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1609    o Added SEAICE_initialHEFF to pkg/seaice
1610    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1611    
1612    checkpoint48g_post
1613    --- EOS:
1614    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1615      store total Potential in totPhyHyd for diagnostics & EOS.
1616    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1617    --- Pressure/geopotential gradient:
1618    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1619    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1620      ( changes results of global_ocean_pressure )
1621    o NLFS + z-coord.: add eta*Rho' contribution.
1622    o accurate phiHyd when using interface-W at the middle between 2 centers
1623     ( changes results of ideal_2D_oce )
1624    o includes r* 2nd term in potential gradient.
1625    
1626    checkpoint48f_post
1627    Merging from release1_p12:
1628    o Modifications for using pkg/exf with pkg/seaice
1629      - improved description of the various forcing configurations
1630      - added basic radiation bulk formulae to pkg/exf
1631      - units/sign fix for evap computation in exf_getffields.F
1632      - updated verification/global_with_exf/results/output.txt
1633    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1634      (SBO) core products, including oceanic mass, center-of-mass,
1635      angular, and bottom pressure (see pkg/sbo/README.sbo).
1636    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1637      to avoid negative values in shallow regions.
1638      - updated verification/natl_box/results/output.txt
1639      - updated verification/lab_sea/results/output.txt
1640    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1641    o Added useSingleCpuIO option (see PARAMS.h).
1642    o Updated useSingleCpuIO option in mdsio_writefield.F to
1643      work with multi-field files, e.g., for single-file pickup.
1644    o pkg/seaice:
1645      - bug fix in growth.F: QNET for no shortwave case
1646      - added HeffFile for specifying initial sea-ice thickness
1647      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1648    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1649      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1650    o pkg/seaice:
1651      - adjoint-friendly modifications
1652      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1653    
1654    checkpoint48e_post
1655    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1656    o dynamics: change definition of computational domain & adapt mom_fluxform
1657      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1658    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1659        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1660        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1661        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1662        inverted_barometer solid-body.cs-32x32x1
1663      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1664    
1665    checkpoint48d_post
1666    o in preparation for r*:
1667     a) use pre-computed gradient of hydrostatic potential:
1668        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1669     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1670        => affects results of glob_oce_pressure (different truncation error)  
1671      update output.txt of ideal_2D_oce & global_ocean_pressure
1672    
1673    checkpoint48d_pre
1674    o in preparation for r*:
1675      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1676      pass the 2 comp. of the grad. as arguments to momentum S/R.
1677      but for the moment, only used if it does not change the results.
1678    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1679    
1680    checkpoint48c_post
1681    Modifications in treatment of initial flux forcing controls
1682    to avoid extra storing of flux fields.
1683    
1684    checkpoint48c_pre
1685    o Added tidal_basin_2d experiment (currently 1D!)
1686    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1687    
1688    checkpoint48b_post
1689    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1690     (modification to pressure gradient not yet implemented)
1691    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1692      (for U & V) that are used for vertical advection of momentum.
1693    
1694    checkpoint48a_post
1695    o In preparation for r*, use temp. array to compute vertical transport
1696       in flux-form momentum pkg. => change results of few test-exp.
1697      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1698                        lab_sea, natl_box & plume_on_slope
1699    
1700    checkpoint48
1701    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1702    
1703    checkpoint47j_post
1704    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1705    o moved adexch from forward_step to addummy_in_stepping
1706    o added exch in ctrl_map_...
1707    o aveFreq.=0. at end of cost_final to avoid overwrite in
1708      reverse checkpointing loop
1709    o Yet more changes in gmredi:
1710      * adgmredi_calc_tensor
1711        avoiding all recomputation of gmredi_slope_limit
1712      * adgmredi_x/y/rtransport
1713        added flag for excessive storing to avoid recomp. of
1714        u/v/rtans, dTdx/y/z
1715        -> this is not really necessary and very memory-consuming
1716      * adgmredi_slope_psi:
1717        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1718      * gmredi_slope_limit
1719        re-activated full calculation of taperfct for case 'ac02'
1720    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1721    
1722    checkpoint47i_post
1723    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1724    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1725      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1726    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1727    o gmredi: fix few bugs.
1728    
1729    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1730    This will be a good checkpoint to plug into the ecco-branch.
1731    o few modif.'s to get latest version adjointed
1732      (mainly kick out code in ini_linear_phisurf)
1733    o modif's to run adjoint with exactConserv
1734    o case GM_BOLUS_ADVEC should be cleaned
1735      S/R gmredi_slope_psi should be cleaned
1736    o verification/carbon now has exactConserv=.TRUE.
1737    
1738    checkpoint47g_post
1739    o time-average AIM output: becomes independent from statvars time-average
1740      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1741    o After TAF bug fix:
1742      Tested adjoint of gmredi package.
1743      Tests were done with checkpoint47 rather than with latest
1744      checkpoint47f_post since the latter is broken for the adjoint
1745      verification/carbon/ contains both ADM and TLM gradient checks.
1746    Here they are, before they get changed/lost/stolen.
1747    Mostly modif.'s to fix numerical sensitivities.
1748    Gradient checks OK for
1749    - GM_taper_scheme:
1750      * clipping
1751      * ac02
1752      * linear
1753      * glw91
1754      * dm95
1755      * ldd97
1756    - GMREDI_OPTIONS:
1757      * GM_VISBECK_VARIABLE_K
1758      * GM_NON_UNITY_DIAGONAL
1759      * GM_EXTRA_DIAGONAL
1760      * GM_BOLUS_ADVEC
1761    in conjunction with data.gmredi parameters to be checked in
1762    in a few minutes under verification/carbon/code/
1763    
1764    checkpoint47f_post
1765    Merging from release1_p10:
1766    o modifications for using pkg/exf with pkg/seaice
1767      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1768        and SEAICE_EXTERNAL_FLUXES
1769      - pkg/exf CPP options EXF_READ_EVAP and
1770        EXF_NO_BULK_COMPUTATIONS
1771      - usage examples are Experiments 8 and 9 in
1772        verification/lab_sea/README
1773      - verification/lab_sea default experiment now uses
1774        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1775    
1776    checkpoint47e_post
1777    o created a tag prior to creating a branch
1778    
1779    checkpoint47d_post
1780    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1781      at the bottom boundary had an erroneous half slip boundary condition
1782    o added bottom drag and no slip boundary condition capabilities to
1783      oceanic pressure coordinates code
1784    o added new verification experiment global_ocean_pressure, this experiment is
1785      also described in the tutorial section of the manual
1786    checkpoint47d_pre
1787    
1788    checkpoint47c_post
1789    o Added a verification experiment for a global cubed-sphere ocean run
1790      -  verification/global_ocean.cubed32x32x30
1791      -  uses pkg/therm_seaice and pkg/bulk_forcing
1792    
1793    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1794    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1795      when using P-coordinate; only implemented for atmospheric config.
1796    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1797      NOTES: requires option NONLIN_FRSURF to be "#define".
1798    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1799    
1800    checkpoint47b_post
1801    Merging from release1_p9:
1802    o pkg/seaice
1803      - removed GOTO's and added taf directives
1804      - double precision constants to reduce the g77 (Linux)
1805        to F77 (SGI) differences reported in release1_p8
1806    o tools/genmake
1807      - added SGI options
1808    o verification/testscript
1809      - updated to that of checkpoint47a_post
1810    o verification/global_ocean.90x40x15/input/eedata
1811      - modified for SGI f77 compatibility
1812    o verification/lab_sea
1813      - added description of sea-ice model
1814      - added missing matlab routines
1815      - added test of thermodynamics parallelization
1816    
1817    checkpoint47a_post
1818    o new pkg: aim_v23
1819     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1820       for now, keep the same surface forcing as before.
1821     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1822     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1823     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1824    o add diagnostic of surface correction term in monitor output
1825    
1826    o bulk_force and therm_seaice
1827    - Two packages:  bulk_force (Bulk forcing)
1828      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1829    - Earlier integration from Stephaine Dutkiewicz
1830      and Patrick Heimbach.
1831    - Two ifdef statements for compile time,
1832       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1833    
1834    checkpoint47
1835    differentiable version of checkpoint46n_post
1836    o bug fix in quasihydrostaticterms
1837    o * "clean" adjoint code (in terms of extensive recomputations)
1838        can now be obtained for all GMREDI options (i.e. for
1839        - GM_VISBECK_VARIABLE_K
1840        - GM_NON_UNITY_DIAGONAL
1841        - GM_EXTRA_DIAGONAL
1842        - GM_BOLUS_ADVEC )
1843      * However, wrong gradient check problem remains unsolved.
1844      * New CPP options have been introduced for different
1845        tapering schemes
1846    o external_fields_load now part of differentiation list
1847    o pressure needs multiple storing;
1848      would be nice to have store_pressure at beginning or
1849      end of forward_step, e.g. by having phiHyd global (5-dim.)
1850      (NB: pressure is needed for certain cases in find_rho,
1851      which is also invoked through convective_adjustment).
1852    o recomputations in find_rho for cases
1853     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1854    o #define ATMOSPHERIC_LOADING should be differentiable
1855    o ini_forcing shifted to begining of initialise_varia
1856    o Incorporating QNVS line search routines into MITgcm
1857      (this is separate code, and therefore not under pkg)
1858      lsopt/, optim/
1859    o Updated verification/carbon/
1860      - #define GM_VISBECK_VARIABLE_K
1861      - GM_taper_scheme    = 'ldd97'    
1862    
1863    checkpoint46n_post
1864    Merging from release1_p8:
1865    o verification/natl_box:
1866      updating new external_fields_load routine
1867    o New package: pkg/seaice
1868      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1869      The sea-ice code is based on Hibler (1979-1980).
1870      Two sea-ice dynamic solvers, ADI and LSR, are included.
1871      In addition to computing prognostic sea-ice variables and diagnosing
1872      the forcing/external data fields that drive the ocean model,
1873      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1874      The implied surface heat flux is then stored in variable
1875      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1876      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1877      non-local transport term.  Because this call precedes model
1878      thermodynamics, temperature under sea-ice may not be "exactly" at
1879      the freezing point by the time theta is dumped or time-averaged.
1880      N.B.: fairly large differences in accuracy occur across
1881            different platforms/compilers; comparison between
1882            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1883            generated output gives:
1884       T           S           U           V
1885      C D M    c        m  s        m  s        m  s        m  s
1886      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1887      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1888      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1889    
1890      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1891    o GAD:
1892      - generated new common blocks to account for call of
1893        same gad routines with differing traceridentities
1894        (needed to modify tracerIdentity indices in GAD.h)
1895      - generated separate common blocks for case useCubedSphereExchange
1896        (Department of Futurology)
1897      - parameter lists to gmredi_?transport: added tracerIdentity
1898      - added new key indices to tamc.h
1899    o external_fields_load:
1900      - added this routine to TAF list
1901      - needed to make some common blocks global and additional storing
1902        along the same lines as exf package (checkpoint_lev?_directives.h)
1903    o exf:
1904      updated external forcing package
1905      - bug fixes carried over from ecco-branch
1906        (missing OBCS_OPTIONS.h in two routines)
1907      - enable easy to use "no forcing".
1908      - added exf I/O for atmospheric loading
1909      - added exf I/O for runoff data
1910      - transfered scaling between exf <-> MITgcm to exf namelist
1911    o Adding new verification experiment global_with_exf.
1912      This verification experiment is almost identical to the
1913      global_ocean.90x40x15 experiment, except that it uses
1914      the exf (and cal) package instead of the
1915      external_fields_load routine (cf README file).
1916    
1917    checkpoint46m_post
1918    o modified testscript to return -- when there are no lines of "%MON" output
1919    o added new flag "quasiHydrostatic" for QH mode
1920      and new routine quasihydrostaticterms()
1921    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1922      New routine: mom_u_coriolis_nh()
1923    o fixed sign of non-hydrostatic metric terms in u and v equations.
1924      Depend on correct sign of gravitySign.
1925    o added work.pc* to .cvsignore in aim directories using ifc
1926    o introduced flag for controllin non-hydrostatic metric terms
1927    o removed gravitySign from PARM04
1928    o switched to g77/ifc from pgf77 in aim experiments
1929    
1930    checkpoint46l_post
1931    o made convective adjustment work with pressure coordinates:
1932     - changed the direction of k-loop in convective_adjustment.F for the
1933       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1934     - adjusted the reference pressure k-index in convective_adjustment.F
1935     - adjusted the convection condition in convect.F (in analogy to
1936       calc_ivdc.F)
1937     - convective_adjustment no longer computes anything on the halos
1938     - removed the warnings about negative salinity from find_rho.F and
1939       find_alpha.F; instead the new routine look_for_neg_salinity, called
1940       at the beginning of find_rho, find_alpha, and find_beta, does a
1941       check of the entire slice, if CPP-option
1942       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1943    checkpoint46l_pre
1944    
1945    checkpoint46k_post
1946    o fixed the verification/global_ocean.90x40x15 experiment:
1947     - new bathymetry (the world according to A., JMC, and M.)
1948     - new initial fields and forcing fields (*.bin files)
1949     - new POLY3.COEFFS (for the next release one should switch to a full
1950       equation of state: JMD95P or MDJWF)
1951     - fixed several errors and redundancies in the data file
1952     - experiment uses looped cells
1953     - added matlab directory with diagnostic scripts for plotting of output
1954    
1955    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1956     - read AIM physics parameters from a file (data.aimphys)
1957     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1958    
1959    checkpoint46j_post
1960    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1961    o move wVel computation at the end of the time step, in S/R integr_continuity
1962    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1963    o update timeave pkg for wVel diagnostic.
1964    checkpoint46j_pre
1965    
1966    checkpoint46i_post
1967    o Clean up AIM package (and keep the results unchanged):
1968      include CPP_OPTION and use IMPLICT NONE in all routines ;
1969      declare all the variables _RL ; use _d 0 for all numerical constants.
1970      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1971    
1972    checkpoint46h_post
1973    o cleaned up the use of rhoNil and rhoConst.
1974      - rhoNil should only appear in the LINEAR equation of state, everywhere
1975        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1976        and the dynamical equations are all divided by rhoConst
1977    o introduced new parameter rhoConstFresh, a reference density of fresh
1978      water, to remove the fresh water flux's dependence on rhoNil. The default
1979      value is 999.8 kg/m^3
1980    o cleanup up external_forcing.F and external_forcing_surf.F
1981      - can now be used by both OCEANIC and OCEANICP
1982    checkpoint46h_pre
1983    
1984     Added code to convert surface volume flux (fresh water) into
1985     a mass flux when using P coordinates in the ocean (OCEANICP).
1986     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1987    
1988    checkpoint46g_post
1989    o Include a new diagnostic variable phiHydLow for the ocean model
1990      - in z-coordinates, it is the bottom pressure anomaly
1991      - in p-coordinates, it is the sea surface elevation
1992      - in both cases, these variable have global drift, reflecting the mass
1993        drift in z-coordinates and the volume drift in p-coordinates
1994      - included time averaging for phiHydLow, be aware of the drift!
1995    o depth-dependent computation of Bo_surf for pressure coordinates
1996      in the ocean (buoyancyRelation='OCEANICP')
1997      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1998        Theta, Salinity, and Pressure in the parameter list. This routine is
1999        presently contained in find_rho.F. This routine does not give the
2000        correct density for 'POLY3', which would be a z-dependent reference
2001        density.
2002    o cleaned up find_rho
2003      - removed obsolete 'eqn' from the parameter list.
2004    o added two new verification experiments: gop and goz
2005      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2006    checkpoint46g_pre
2007    
2008    checkpoint46f_post
2009    o Enable tangent linear (forward mode) gradient checks:
2010      - extended active file handling to g_... files
2011      - added TANGENT_SIMULATION to theSimulationMode
2012      - extended grdchk package accordingly
2013    o added tangent linear setup in verification/carbon/code_ftl
2014    o added adjoint setup in verification/front_relax/code_ad
2015    
2016    checkpoint46e_post
2017    o Added new equation of state -> MDJWF
2018      - EOS of McDougall et al., 2002, JAOT, submitted
2019      - caveat: the equation of state is only valid for a smaller (more
2020        realistic?) range of values than JMD95P/Z and UNESCO
2021      - added masks to the calculation of pressure in store_pressure
2022      - added more check values for density in check_eos (ini_eos.F), some of
2023        the old check values are out of the range of the MDJWF-eos, so don't
2024        expect perfect matches for those
2025    checkpoint46e_pre
2026    
2027    checkpoint46d_post
2028    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2029      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2030      case of pressure coordinates. eosType='JMD95Z' in
2031      combination with buoyancyRelation='OCEANICP' now causes an error.
2032    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2033      in find_alpha/beta.
2034    checkpoint46d_pre
2035    
2036    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2037      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2038    
2039    checkpoint46c_post
2040    o Changes necessary for ocean in p-coordinates
2041     -  Added new buoyancy relation = 'OCEANICP'
2042     -  Added new parameters = gravitySign (this used to be contained inside
2043        the factor dRdZ which I added when we first switched to R coordinates).
2044     X GM/Redi is not compatible (yet)
2045     X bottom drag and no-slip need to be debugged.
2046    checkpoint46c_pre
2047    
2048    checkpoint46b_post
2049    o Added new equation of state -> JMD95Z and JMD95P
2050      - EOS of Jackett and McDougall, 1995, JAOT
2051      - moved all EOS parameters into EOS.h
2052      - new routines ini_eos.F, store_pressure.F
2053    o Added UNESCO EOS, but not recommended because it requires
2054      in-situ temperature (see JMD95)
2055    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2056      unesco.f to be used with POLY3
2057    checkpoint46b_pre
2058    
2059    checkpoint46a_post
2060    o Added (atmospheric) pressure loading
2061      - new field in FFIELDS.h, etc...
2062      - new cpp flag ATMOSPHERIC_LOADING
2063    o Changed hFacC to _hFacC in calc_phi_hyd.F
2064    o Added SHORTWAVE_HEATING to some files for consistency
2065    checkpoint46a_pre
2066    
2067    checkpoint46
2068    further merges from release1_p5
2069    o new ctrl package
2070      - adopted from ECCO environment to enable optimization
2071      - added Eliassen Palm fluxes to controls
2072    o added Eliassen Palm flux controls to gradient check package
2073    o cost package
2074      - Compatible with new ctrl package
2075      - added Eliassen Palm cost hooks
2076      - modif's of existing cost functions
2077    o Adjoint-related bug fixes in kpp:
2078      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2079      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2080    o autodiff package
2081      - flow directives:
2082        + new for S/R do_the_model_io
2083        + enhanced for S/R checkpoint
2084        + new gmredi.flow
2085      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2086        disable adcommon.h/g_common.h by default.
2087      - fixed problem for adjoint of global_max
2088    o modified verification/carbon/
2089    o New setup for adjoint of global_ocean
2090    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2091    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2092    o incorporated hooks for sponge layer code (external_forcing.F)
2093    
2094    checkpoint45d_post
2095    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2096    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2097      (affects plume_on_slope "cg2d" output)
2098    o add new parameter deltaTfreesurf for free-surface time stepping
2099    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2100    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2101    o change phiMin in exp1 (to agree with documentation)
2102    o add new flags:
2103     - T,S forcing inside/outside Adams-Bashforth
2104     - turn off temp,salt advection and/or forcing
2105     - for each tracer, define internal flag for multiDimAdvection & A-B
2106    o monitor: change definition of KE to check conservation of Energy
2107    
2108    checkpoint45c_post
2109    o Removed f90 comments ("!")
2110    o Modified initialisations to enable exf package for MITgcm
2111      (without invoking ECCO_PACKAGE).
2112    o modifications to gradient check package (Martin Losch)
2113      - enable centered differences
2114      - modified format of standard output
2115    
2116    checkpoint45b_post
2117    o cleaned exchange calls in cg2d
2118    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2119    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2120      to configure barotropic setup (Martin Losch)
2121    o moved some initialisations within bi,bj loop in dynamics
2122      (TAF flow dependency)
2123    o in initialise_varia, moved call packages_init_variables
2124      before convective_adjustment_init
2125      (corresponding adjustment of TAF tape initialisation).
2126    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2127    
2128    checkpoint45a_post
2129    o compute Rho over the whole domain (extend iMin,jMin indices)
2130    o specific exchange for X-slice domain (case Ny=1)
2131    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2132    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2133    
2134    checkpoint44h_post = checkpoint45
2135    o Fix to restore differentiability:
2136      place at which packages_init_variables is called in
2137      initialise_varia is crucial for reverse control flow.
2138    o modifications in GMRedi to enable stable adjoint
2139      (corresponding modif's in thermodynamics, dynamics)
2140    o added missing hook for sponge layer code in external_forcing
2141    o modified test cost functions
2142    o storing in gad_advection (plus removal of write(0,*)!
2143    o missing headers TR1.h added in convective_adjustment routines
2144    o errorMessageUnit set non-equal zero in eeboot
2145      (conflict on some platforms, e.g. IBM SP3)
2146    o modified carbon verif.
2147    
2148    checkpoint44h_pre
2149    o vertical grid option: allow to put the Interface at the middle between
2150      2 cell-centers ; replace delZ in pkg/kpp by drF.
2151    o GM Advective form: Tracers are advected using the residual transport (=
2152      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2153    
2154    checkpoint44g_post
2155    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2156      results) ; ifdef missing in thermodynamics.F
2157    
2158    checkpoint44f_pre,checkpoint44f_post
2159    o added PTRACERS package
2160      This allows an arbitrary number of passive tracers to be integrated
2161      forward simultaneously with the dynamicaly model.
2162      + Implemented so far:
2163        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2164        - I/O and checkpointing
2165        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2166      + Not implemented so far:
2167        - KPP
2168        - OBCS
2169      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2170        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2171        line in data.pkg.
2172      + This package is disabled by default since it increases storage.
2173    
2174    
2175    o testscript: added -cleanup option
2176    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2177                 b) enable to filter 2D fields.
2178    
2179    checkpoint44e_pre,post
2180    o re-wrote convective adjustment to use pre-calculated weights
2181      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2182      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2183      Original calls to convect() still in place.
2184    
2185    chkpt44d_pre,post
2186    o added missing EXCLUDE_MONITOR flags
2187    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2188      (incompatible typ in MIN/MAX expressions caused problems
2189      on IBM SP3)
2190    o in genmake added variable MAKEDEPEND
2191      plus resetting for case SunOS
2192    o added timer_stats.c routine for IBM SP3
2193    o removed variables in dynamics
2194    !!! I forgot to create tag chkpt44d_pre !!!
2195    !!! But chkpt44d_pre = chkpt44c_post    !!!
2196    
2197    o real fresh water flux implemented with non-linear free-surface.
2198    
2199    chkpt44c_pre,post
2200    o few fix (mask in shap_s2, EmPmR in external_field_load,
2201      USE_NATURAL_BCS in solve_for_P);
2202    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2203    
2204    checkpoint44b_pre/_post
2205    o merge of relevant stuff from the ecco-branch:
2206      - genmake: removed $S64 overwrite for case SunOS
2207      - pkg/exf: update and corrections for field swapping and obcs
2208      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2209                  harmonized between ECCO and MITgcm
2210      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2211                      updated checkpointing_lev... lists for obcs
2212      - model/src: minor changes in forward_step, plot_field
2213                   added directive for divided adjoint in the_main_loop
2214      - pkg/mdsio: added mdsio_gl_slice
2215    
2216    o check parameters & config (chkpt44a_pre,post)
2217    o OBC and NonLin_FrSurf.
2218    
2219    checkpoint44
2220    o fix bug in mom_vi_del2uv
2221    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2222    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2223    o update AIM experiments (NCEP input files)
2224    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2225    o added some stuff for AD
2226    
2227    checkpoint43
2228    o added two new advection tests
2229    o added global 4x4 degree ocean test
2230    o added test of H&S94 with free surface on cube
2231    o some final mods for gradient check, adjoint,...
2232    
2233    checkpoint42
2234      Fixed AD-related problems:
2235    o Store directives up-to-date with re-arranged Adams-Bashforth
2236      (mainly thermodynamics.F)
2237    o New store directives for multi-dim. advection schemes
2238      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2239      * new common block and key passkey
2240      (mainly gad_advection.F)
2241    o Modified store directives for split of dynamics/thermodynamics
2242      for the case ALLOW_KPP
2243    o Cleaned argument list for timestep_tracer.F
2244    
2245    checkpoint41
2246    o re-formatted/added comments in prologues of key subroutines
2247      to work with protex
2248    
2249    checkpoint40
2250    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2251    o added FLT (floats) package from Arne along with demo. experiment
2252    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2253      implementation of forward-in-time forcing terms
2254    o more mods for non-linear free-surface including new variable
2255    o modified multi-dim method to work on cube
2256    o bug fix in KPP (from DM)
2257    
2258    checkpoint40pre9
2259    o added DST advection schemes
2260    o fix MPI bug on SGI's
2261    o modifications for non-linear free-surface
2262    o fixed conditionals for fixed flow/passive tracer only mode
2263    o added tension/strain form of stress tensor
2264    o changes to commenting of arguments for TAF/TAMC
2265    o added/updated many matlab scripts
2266    o added multi-dimensional advection method for tracers
2267      
2268    checkpoint40pre8
2269    o new package rw/
2270      Added method for dumping intermediate local arrays:
2271      mdsio_writetile - same as mdsio_writefield except works from inside
2272                        bi,bj loop
2273      mdsio_writelocal - same as mdsio_writetile except works for local
2274                         arrays
2275      write_local_r? - higher-level wrapper for mdsio_writelocal
2276      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2277      Example given at end of mom_vecinv.F that dumps some local arrays.
2278    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2279      control flux-form versus vector invariant code.
2280      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2281      or genmake -DISABLE ...
2282    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2283      (additional storing is now needed for case vecinv;
2284      currently nothing implemented to switch this storing off
2285      in case fluxform is used since no CPP flag available).
2286    
2287    checkpoint40pre7
2288    o bug fix in dynamics.F
2289      calc_viscosity called before k=1,Nr loop.
2290    o added some #ifdef's ALLOW_PASSIVE_TRACER
2291    o cleaned initialisations in ctrl_map_ini
2292      related to TAF
2293    
2294    checkpoint40pre6
2295    o split dynamics into thermodynamics & dynamics
2296    o corresponding split of calc_diffusivity into
2297      calc_diffusivity, calc_viscosity
2298      (kpp_calc_diff, kpp_calc_visc).
2299    o Added diffkr, kapgm to control variables
2300    o bug fix in gmredi_slope_limit for ldd97
2301    
2302    checkpoint40pre5
2303    o proper initialization of Adams-Bashforth time stepping
2304      + uses forward step for very first step of model (iter=0)
2305    o re-generated *all* output since almost all output is modified by this
2306      change (sorry but we've been putting this one off for about 2 years)
2307      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2308        *not* regenerated since they are already out of date and I don't
2309        want to create the impression that they are suddenly working.
2310    o removed KAP stuff for DEC's
2311    o modified/added many .cvsignore files in */code and */input
2312    o added new expt "solid-body.cs-32x32x1"
2313      + this uses an alternative form of ini_curvilinear_grid.F which
2314        is not necessarily any better than the current one...
2315    
2316    checkpoint40pre4
2317    o added re-initialisations of utrans,vtrans,rtrans in
2318      calc_common_factors which are crucial for TAF.
2319    o extended iMin,jMin range for calc_common_factors,
2320      calc_diffusivity
2321    o added option ALLOW_PASSIVE_TRACER
2322    o a few minor updates and fixes
2323    
2324    checkpoint40pre3
2325    o created calc_gtr1.F for gad package
2326    o split the_main_loop and re-introduced forward_step
2327    o some recomputations of nIter0 for TAMC
2328    
2329    checkpoint40pre2
2330    o Updated to latest branch of AJA, JMC
2331    o Added gradient check package
2332    o Added routines for passive tracer handling
2333    o Added carbon sequestration sensitivity experiment
2334    
2335    checkpoint39
2336     o Modifications and fixes to support TAMC
2337       (mainly missing or wrong directives)
2338     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2339       in addummy_in_stepping
2340     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2341     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2342     o Included following packages:
2343       cal: calendar
2344       exf: external forcing
2345       ecco: essential routines to control use of cal, exf
2346             (NB: this is not the full ECCO environment)
2347     o disabled some packages by default in genmake
2348    
2349  checkpoint38  checkpoint38
2350   o see notes_c37_adj.txt   o see notes_c37_adj.txt
2351   o corrected wrong layer index in external_forcing_t   o corrected wrong layer index in external_forcing_t

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