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revision 1.209 by heimbach, Mon Nov 17 23:45:57 2003 UTC revision 1.575 by jmc, Mon Oct 24 18:20:11 2005 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
8      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
9    o tracer advection scheme:
10      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
11       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
12       was not very convenient).
13      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
14       (further tests needed for the implicit DST & Flux-Limiter schemes).
15    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
16      and sRef for convenience, handy, when you want to initialize
17      ptracers in a large domain with a constant non-zero value. Also,
18      untangle ptracers_init.F a little.
19    
20    checkpoint57v_post
21    o change dome exp. to use variable viscosity in side-drag terms.
22    o remove all the files from the cfc_offline test since they are now
23      incorporated into tutorial_cfc_offline which has been producing
24      identical results for a few days of testing
25    o add new parameter: sideDragFactor to enable half-slip-side BC
26      and change side-drag S/R to use viscosity from mom_calc_visc
27      (can switch back by setting sideDragFactor=0.); affects results at
28      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
29       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
30    o vorticity & strain are now computed without masking, to account for
31      no-slip-side BC in variable viscosity calculation ; mask is applied
32      anyway later on, before computing advection/coriolis terms.
33    o modify exp4 to test new obcs support for reading from external files
34      and for passive tracers
35    o fix behavior of ptracers_monitor when monitor output is written to a
36      netcdf-file; still not independent of monitor.F (writes in the same
37      file).
38    o change default value of tRef (put a uniform, meaningful value for ocean
39      & atmos) and initialize sRef (was missing, as Martin mentioned).
40    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
41      to be proportional to enstrophy dissipation length.  Thus,
42       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
43      This is now consistent with Smagorinsky and with the manual.
44    
45    checkpoint57u_post
46    o OBCS and PTRACERS: add open boundary support for passive tracers
47      - either use homogenous (pseudo) v.Neumann conditions or prescribe
48        OB-values from file; this is not different from the way theta and salinity
49        are treated
50      - however, Orlanski-radiation conditions are not supported, and the model
51        will stop if you use pTracers and Orlanski at the same time.
52      - beefed up the rountine obcs_external_fields_load: now only those open
53        boundary values are overwritten with values from files for which there
54        are really files, otherwise the OB-fields remain untouched. This makes
55        it possible to use different OBs at different ends of the domain (as
56        with EXF)
57    o reduce number of exch calls in shap_filt (s2).
58    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
59      truncation level) 4/5 MLAdjust test results (11&12 digits match).
60    
61    checkpoint57t_post
62    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
63    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
64      same truncation, independent of the face number: affects affects several
65      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
66    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
67      note that biharmonic viscosity + no-slip was not tested in any experiment.
68    o fix bug in non-linear free-surf side-drag ; generate new output for
69      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
70    o make mnc honor the writeBinaryPrec flag for most kinds of output
71    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
72    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
73      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
74    o add brackets in multi-terms sum to get same truncation, independent of
75      the face number (manage to get exactly same value of gU,gV at the cs-edge)
76      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
77    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
78      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
79      a maximum grid-scale Reynolds number.  Also, changes all length calculations
80      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
81      Suggested values of viscosity parameters found in mom_calc_visc.
82      Many new viscosity diagnostics available.
83    
84    checkpoint57s_post
85    o Add clearing-house for viscosity calculations, mom_calc_visc and
86      correct numerous bugs in LeithD and Smagorinsky discretizations.  
87      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
88      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
89      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
90      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
91      The Strain-Tension form is now called with useStrainTensonVisc=.true.
92      ViscAhStrain and viscAhTension are now retired.
93    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
94    o In response to JMC's bug report, genmake2 now ignores any soft-links
95      that it finds in the *current* directory when searching for files.
96      Soft-links found in any other source directories will still work as
97      they did before.
98    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
99      a C routine to unlimit the stack size
100    o mnc-ify pkg/aim snapshot vars
101    o mnc-ify pkg/land as requested by Daniel
102    o various changes to mnc including:
103      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
104      - output can now be grouped so that all files within a group
105          change the ITER portion of their names in lock-step together
106      - can now read ("global") PER-FACE (in addition to PER-TILE) files
107          and works with both EXCH1 and EXCH2 (but needs more testing)
108      - writing works for all verification test cases w/ g77 on Linux
109    
110    checkpoint57r_post
111    o make MNC variable initialization happen earlier
112    o add diagnostics for (almost) each term of the momentum Eq.
113    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
114    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
115    o remove MINIMAL_TAVE_OUTPUT option ;
116      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
117    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
118      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
119    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
120    o add time-dependent SST, SSS control
121    o cost terms in ecco/ modularized (new cost_generic.F)
122    o cost_averages routines are modularized (new cost_averagesgeneric.F)
123    o new infrastructure for seaice model vs. obs misfits in seaice/
124      * driver from the_main_loop.F is seaice_cost_driver.F
125      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
126      * gradient check in Exp. 6a of natl_box_adjoint/
127    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
128      (see README file)
129    
130    checkpoint57q_post
131    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
132    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
133      - bug was reported by Jean-Michel and Ian Fenty
134    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
135      update exp. cpl_aim+ocn output.
136    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
137      Needed for high-res. runs with large global files
138      to be able to limit tapelev size
139    o Changed some tests for adjoint:
140      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
141      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
142      * global_ocean.90x40x15/ back to default 3-level checkpointing
143    o Modifications to enable scripted COMMON to MODULE conversion
144      * verification/OpenAD/code/ has necessary scripts and description;
145      * converts, compiles and runs successfully;
146    
147    checkpoint57p_post
148    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
149    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
150      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
151    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
152    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
153      (was already the case for dissipation with mom_vecinv,
154       and also the case for grad.PhiHyd when staggered-timeStep)
155      This will allow to put dissipation out-off the AB time-stepping.
156     Unfortunately, affects truncation error. Update output of exp. that "fails"
157      (cg2d matching number) and leave the others for later: front_relax(10),
158      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
159      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
160    
161    checkpoint57o_post
162    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
163      (2) its ready to be documented during the 20050801 DocFest
164    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
165      for ideal_2D_oce and lab_sea on linux_ia32_g77
166    o set to #undef CTRL_SET_OLD_MAXCVARS_30
167      in global1x1_tot/code_seaice_adj to access indices 32, 33
168      (worth another tag)
169    
170    checkpoint57n_post
171    o adding precip control xx_precip 32
172    o adding swflux control xx_swflux 33
173    o Replacing 10 forcing penalty cost routines by 1 generic.
174    o Implementing partitioning in time-mean and variable adjustment
175      for atmos. state.
176    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
177    o in natl_box_adjoint:
178      * updated exp 1 to 10
179        (but does not have time-mean vs. variable split results yet)
180    o updated global1x1/*_seaice_adj/
181      to incorporate latest changes
182    o enable useSingleCpuIO for mdsio vector routines
183      (applies in particular to tapelev I/O)
184    o removed inefficient K-loop in all active_file*control*.F
185    
186    checkpoint57m_post
187    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
188      and advect_cs (use EXCH-2 and standard cs-32 grid files).
189    o pkg/exch2: filling of face-corner halo regions is optional
190      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
191    
192    checkpoint57l_post
193     tag before updating tutorials (pre-release-2)
194    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
195       for output and interpolation of input fields onto model grid)
196    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
197       Affects results of exp. rotating_tank ; update output.txt.
198    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
199          and taking the square quantity and/or using a fraction-weight field.
200    o fix aim_diagnostics_init.F mate numbers.
201    o add mnc output capability to diagnostics/diagstat and update
202      our cvsignore files for the ACSII output generated
203    
204    checkpoint57k_post
205    o lab_sea now uses diagnostics package and provides a suite of
206      new EXF diagnostics output.
207    
208    checkpoint57j_post
209    o exf
210      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
211        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
212        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
213      * extended diagnostics output
214        - now includes all EXF variables
215        - hs, hl moved to common block
216        - separate S/R for diagnostics, called after ctrl vector is added
217        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
218        - EXFqnet contains true Qnet (i.e. includes qsw)
219      * updated verif. lab_sea, global_with_exf
220      * Rearranging hflux (exf_mapfields -> exf_getforcing)
221        to ensure that diagnostics sees a true EXFqnet
222    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
223    o diagnostics pkg: change pointers so that 1 diagnostic can be used
224      several times with different frequencies.
225    o mnc-ify the thsice package as requested by Daniel Enderton
226      - the monitor--MNC output needs work
227      - many attributes need to be added (most are currently blank)
228    o mnc-ify theaim_v23 package as requested by Daniel Enderton
229      - many attributes need to be added (most are currently blank)
230    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
231    o add Sadourny like discretization to the 4th.O vorticity advection scheme
232    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
233      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
234         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
235    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
236     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
237    
238    checkpoint57i_post
239    o Diagnostics package was changed: diagnostic allocation is now deactivated
240      by setting an empty file name in the namelist (used to be by setting 0 frequency)
241    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
242      add 1rst Order upwind vertical Shear.
243    o add a quick fix for A/B checkpointing in OFFLINE mode
244    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
245      end-run around the C/Fortran linking horror in eesup/src/timers.F
246    o added pkg/runclock: allows user to terminate run based on wall clock
247    o added non-hydrostatic scaling parameter: nh_am2
248    o pkg/my82: futile attempt to make results compiler-independent by adding
249      some "_d 0", etc. no effect.
250    o for mnc output, fill the 'T' coordinate var with myTime and create a
251      separate 'iter' variable for iteration count
252    o pkg/diagnostics:
253      add new capability: output of Global/Regional & per-level statistics ;
254      tested against monitor output (including land & thSIce) on various exp.
255    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
256    
257    checkpoint57h_done
258      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
259      data.diagnostics, data.gchem, data.ptracers) is done.
260    
261    o pkg/diagnostics: prepare for Global/Regional statistics.
262      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
263    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
264      and rename it: DIFFERENT_MULTIPLE
265    
266    checkpoint57h_post
267    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
268    o pkg/diagnostics: change output frequency, now in seconds (instead
269      of Nb of iterations). This requires to change data.diagnostics.
270    checkpoint57h_pre
271    
272    o in mnc, let the user create the output dir if both mnc_outdir_date
273      and mnc_outdir_num are false
274    o add fflags() to pkg/diagnostics which allows one to specify, on a
275      per-file basis, the file precision [default behavior is unchanged]
276    o added diagnostics to pkg/kpp, including computation of mixed layer
277      depth based on a temperature/density criterion
278    o updated verification/natl_box to test the new pkg/kpp diagnostics
279    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
280    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
281    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
282      not mnc -- this mistake was found by JMC and is now corrected
283    
284    checkpoint57g_post
285    o add Adams-Bashforth 3rd Order time stepping:
286      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
287      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
288    checkpoint57g_pre
289    
290    o make lambda[Theta,Salt]ClimRelax spatially varying
291      (default remains spatially uniform constant based on tau)
292    o added new control variables
293      * init. uVel, vVel, etanN
294      * lambda[Theta,Salt]ClimRelax
295    o separate masks used for ctrl_pack/unpack 'from write_grid' output
296      (suggested by G. Forget)
297    
298    checkpoint57f_post
299    o add parameter "baseTime" = model base time = time at iteration zero
300      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
301      account for baseTime shift
302    o move Coriolis arrays from PARAMS.h to GRID.h
303    checkpoint57f_pre
304    
305    o mnc-ifying the seaice package
306    o introduced an alternative length scale calculation for use in the limiting
307      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
308    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
309    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
310      as well as grad(vort3).  Made it compatible with both approximate form
311      for the cubed sphere and full form of these gradients.  Added flag
312      useFullLeith to select between approximate and full form.  
313    o add "d0" in getcon.F to reduce differences between compilers/platforms
314      update output.txt of exp. fizhi-gridalt-hs
315    o change port_rand funtion to allow to set the seed.
316    o fix obscure MNC bug involving conversion between reals and integers
317      - it caused no problems with certain (eg. gcc, ifc) compilers but the
318        new version is now more standards-compliant
319    o adjoint-related modifications
320      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
321      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
322      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
323    
324    checkpoint57e_post
325    o Adding eddy stress controls a la Ferreira et al.
326    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
327    
328    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
329      update output.txt of exp. fizhi-gridalt-hs
330    o add more "Z" dimensions and associated coordinate vars to MNC
331    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
332    o parameter calendarDumps: when set, approximate months (30-31 days) and years
333      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
334      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
335      months and years.  Requires pkg/cal.
336    o diagnostics: add pickup functionality
337      - off by default for backwards compatibility
338      - current version only uses MDSIO -- MNC will be added
339    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
340    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
341    
342    checkpoint57d_post
343    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
344    o modify verification/ideal_2D_oce so that it tests the creation of mnc
345      output from the diagnostics package
346    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
347    o make genmake2 more portable by using ".$FS" instead of ".f" for more
348      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
349    o add coordinate variables to the MNC output from the diagnostics package
350    o change MNC-flags default value: true when useMNC=TRUE
351    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
352      the ability (off by default) to read the grid information using MNC
353    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
354    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
355    o do snap-shot diagnostics at the middle of the time-interval (instead of
356      at the end).
357    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
358      new test for AIM with thSIce + slab-ocean
359    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
360    o move state variable diagnostics to the beginning of the time step ;
361      (note: still needs some work specially for snap-shot diagnostics)
362      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
363    
364    checkpoint57c_post
365    o Change testing option (-ieee) to get closer agreement between g77 & ifort
366    o generate new output.txt files on faulks with g77 & the new -ieee option
367    checkpoint57c_pre
368    
369    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
370      update output.txt of exp. global_ocean.90x40x15
371    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
372      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
373    o add saltFlux(+File) forcing capability with periodicExternalForcing
374    o allow to use pkg diagnostics for GM-Redi & ThSIce output
375    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
376    o improvements for the MNC output from DIAGNOSTICS:
377      - correct handling of the unlimitied dimension
378      - all dims now have associated coordinate variables
379      - variables located at U, V, and Corner ("Z") points are now written
380        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
381        *all* data points are output
382    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
383    o added pkg/seaice/seaice_monitor.F
384    o mdsio_readfield.F can now read files visible only to master MPI process.
385    o pkg/seaice: some test code for ice-modified ocean stress
386    o exf_getffields interpolation defaults to bilinear for all scalar forcing
387      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
388      spurious negative numbers for precipitation and humidity.  Will cause
389      some small numerical differences for integrations using pkg/exf/exf_interp.F.
390    o pkg/ctrl/
391      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
392        May be enabled via doPackDiag
393      *  introduce z-scaling of
394         + gradient (doZscalePack) and
395         + control (doZscaleUnpack)
396    o pkg/mdsio/
397      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
398      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
399    
400    checkpoint57b_post
401    o simplify options in diagnostics_fill arguments (remove weird combinations)
402    o fix MNC coordinate variables so that they now contain per-face index
403      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
404      general, EXCH2 grids are only aligned to a "local" coordinate system
405    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
406    o Implement instantaneous output within pkg diagnostics:
407      setting a negative frequency in data.diagnostics produces
408     "snap-shot" output (as opposed to time-average if freq > 0)
409    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
410      NOTE: change ptracer diagnostics name: use 2 characters to work with
411            more than 9 tracers. Add also diagnostics of advect & diffus flux.
412    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
413      becomes the coordinate variable for the 'T' dimension
414    o add CF-style coordinate variables to MNC
415      - just a first cut:  numbers are meaningless on the cubesphere and
416        missing along the T axis but otherwise it works!
417    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
418    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
419    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
420      this is based directly on what the model compute, so that the content of
421      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
422    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
423    o clean up build options files for SunOS, in particular
424      - remove -traditional from xmakedepend
425      - change -xarch=v9 to -xarch=native for f77
426      - restore use of make (not gmake)
427      - add CC=gcc if using g77
428    o changes per discussion of AM, JMC, & EH3 today:
429      - move redundant "grid" variables out of "state" -- in preparation of
430        creating proper CF-style coordinate variables and in recognition
431        that any/all grid variables can be easily copied (eg. w/NCO) from
432        the grid files into any of the other NetCDF files
433      - *always* output grid variables with MDSIO (this will eventually be
434        changed)
435      - output MNC grid file if useMNC is true
436    o every instance of _END_MASTER() has been found and replaced with
437      _END_MASTER( myThid ) in order to satisfy certain picky Sun
438      preprocessors
439    o re-arrange diagnostics pkg initialisation:
440     - allow each package to extend the available diagnostics list
441     - add some checking and fix small problems (multi-threaded, ...)
442     - new S/R diagnostics_fill (replace fill_diagnostics):
443       look through the short list of active diag. (instead of the long list)
444       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
445    
446    checkpoint57a_post
447    o this set of changes restores TAMC compatibility
448      tested for global_ocean.90x40x15 adjoint on trough
449      (what a pain)
450    
451    checkpoint57a_pre
452    o some modifs in tools/build_options for sunos
453    o call ctrl_pack for ctrl at end for optimcycle=0
454    
455    checkpoint57
456    o add horizontal bi-harmonic viscosity for vertical velocity
457      - new parameter viscA4W (defaults to viscA4)
458      - affects only non-hydrostatic code
459      - to be done: no-slip lateral boundary conditions
460    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
461    o implement Implicit Vertical advection for pTracers
462    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
463      (implemented also for implicit vertical diffusion & advection)
464    o OBCS: extend application of tracer open boundary conditions
465      to a strip beyond the boundary of width Olx/Oly
466    o add call monitor to TAF set of required calls (flow directives)
467      and include in natl_box_adjoint
468    o untangle a few ifdefs related to cost, ctrl, autodiff
469      untangel a few ALLOW_ECCO_OPTIMIZATION
470    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
471      (theta2, salt2 in ecco_cost_weights)
472    
473    checkpoint56c_post
474    o OBCS as control variables
475      - update ctrl_ad_diff.list, obcs_ad_diff.list
476      - remove balance of obcs controls from default
477      - fix index bug nobcs in ctrl_init
478      - fix dummy fields filen in ctrl_pack
479      - add dummy weights for obcs
480    o lsopt: comment out fort.94 output
481    o optim:
482      - remove unnecessary header files
483      - adjusted namelists
484      - add xerbla.F to Makefile
485    o exf:
486      - multiple modifications of exf_check_range
487      - unit change in exf_init_runoff from [m/year] to [m/s]
488    o mdsio:
489      - i/o-vector change debugLevel from debLevA to debLevB
490    
491    checkpoint56b_post
492    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
493      is called from DO_THE_MODEL_IO
494      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
495      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
496      - clean up PTRACERS_WRITE_TIMEAVE a little
497    o add another verification experiment that tests both the cfc-pkg and
498      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
499      reactive tendencies treated inline with regular timestepping
500    o testreport previously did a lousy job of comparing small numbers, so
501      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
502      implemented in the little c-progam tmp_cmpnum.c which is embedded in
503      testreport.
504    o ptracers_monitor: bug fix for MPI
505    
506    checkpoint56a_post
507    o GCHEM: finish reorganizating the package
508      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
509        (introduces another 3D-array for each passive tracer, but only if
510        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
511        gchemTendency is not needed because the timestep is done separately)
512      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
513      - GCHEM is now---more or less cleanly---separate from PTRACERS
514      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
515        so clear to me how that should be done in a general way.
516    o CFC: improve formatting of output in CFC_ATMOS
517    o PTRACERS:
518      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
519        that ALL experiments with ptracers enable can be checked. This makes
520        GCHEM_MONITOR obsolete.
521      - include a runtime parameter PTRACERS_monitorFreq that defaults to
522        monitorFreq
523      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
524    o add PTRACERS (PTR0[1-5]) to testreport output
525    o exf_check_range:
526      * default changed to .TRUE.
527      * will check values for niter0 if debLevA, every timestep if debLevB
528      * STOP in exf_check_range if 'out of range'
529      * range chosen generous to allow for potential extema
530      TBD: a version with stricter range
531           permitted range would be runtime parameters
532    o GMredi:
533      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
534      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
535      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
536    o GCHEM:
537      - move call to GCHEM_FORCING_SEP, so that it is now called before
538        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
539      - introduced a useGCHEM runtime flag and applied it everywhere.
540      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
541        this flag is now only visible within GCHEM-pkg routines.
542      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
543        be replaced by a 3D array that is computed before thermodynamics; for
544        this, the tracer ID iTracer had to be included into the parameter list
545        of ptracers_forcing
546      - set up forward_step to call gchem_forcing, that will replace
547        gchem_forcing_int in ptracers_forcing
548      - cleaning up
549    o small cleaning of exch2: remove files that are also in eesupp/src
550    
551    checkpoint56
552    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
553    o mnc: cleanup "full" files--fixes out-of-memory problem
554    o ECCO-GODAE
555      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
556      * fully merged and updated from SIO code
557        windstress sign change affects
558        - exf_inscal_[u/v]stress
559        - sign of xx_tau[u/v] adjustments
560        - signs in cost_scat
561      * ctrl_get_gen: avoid update of tau[u/v] for first few days
562      * natl_box_adjoint updated and compressed
563      * 2-level checkpoint switch added
564        (tested in EXP. 1 of natl_box_adjoint)
565      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
566    o SVD
567      * first complete, non-hacked version for SVD calculations
568      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
569        performed via direct access files admtlm_vector.it????
570        (via ctrl_[un]pack)
571      * optimcycle is used for ARPACK iteration counter
572        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
573      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
574        and add linear transforms where necessary
575      * controls are initial/final SST, SSS (can be extended; need to check
576        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
577    o mdsio: filename info to both stderr, stdout
578    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
579      from sign change
580    
581    checkpoint55j_post
582    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
583      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
584    o add consistent build directories and .cvsignore files to verification
585    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
586    o make all subroutines 30 or less characters in length for certain older
587      compilers to work (a thorough search only turns up two routines in
588      pkg/ptracers)
589    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
590      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
591    
592    checkpoint55i_post
593    o change arrays for total vertical diffusivity (2.D if explicit,
594      3.D if implicit) ; each ptracer uses its own background value.
595    o added mnc/NetCDF output capability to ocn_compon_interf
596      - added bits to verification/cpl_aim+ocn so that it can run on
597        ITRDA and other clusters without the mpirun "-wd" option
598    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
599      configuration
600    o give MNC the ability to create additional files rather than
601      exceeding a specified file size limit "MNC_MAX_FILESIZE"
602      - the default is just less than 2GB which is a practical limit
603        on many systems
604    o Compute the non-local term using either KPP vertical diffusivity (=default)
605       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
606    
607    checkpoint55h_post
608    o add verification test "vermix"
609    o remove all the *_ioinc flags and replace with the single global
610      outputTypesInclusive flag
611    o allow to set a vertical profile of vertical diffusivity for T & S
612    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
613    o useMNC moved from data.mnc to data.pkg
614    
615    checkpoint55g_post
616    o Renaming carbon AD experiments to comply with testreport conventions
617    o Updating adjoint of Held-Suarez hs94.1x64x5
618    o Fixing directives for non-ECCO forward_step, after ECCO directives
619      have been fixed to avoid recomp. of do_oceanic_phys
620      Works well for global_ocean.90x40x15,
621      but recomp. issue remains for carbon
622    o Updating adjoint output for natl_box_adjoint after
623      pkg/ecco has been modified (see taga c55d_post)
624    
625    checkpoint55f_post
626    o rename to timeave_init_fixed
627    
628    checkpoint55e_post
629    o some delicate re-shuffle of store directives to avoid one
630      extra call of do_oceanic_physics
631      affects ecco_the_main_loop.F, do_oceanic_physics.F
632      checkpoint_lev1_directives.h
633    o NB: this may break global_ocean adjoint temporarily,
634      but it is clear how to fix it. Will do later, need this now.
635    
636    checkpoint55d_post
637    o ECCO specific cost function terms (up-to-date with 1x1 runs)
638    o ecco_cost_weights is modified to 1x1 runs
639    o modifs to allow observations to be read in as
640      single file or yearly files
641    o enable to read exf forcing fields as either
642      single file or yearly files (flag useExfYearlyFields)
643    checkpoint55d_pre
644    
645    o switch between 2-level and 3-level checkpointing
646    o add ability of MNC to write local and "partial" (eg. 2D slices where
647      the full 3D field is never actually stored) arrays to NetCDF files
648      with the correct (that is, the complete multi-dimensional) set of
649      array indicies
650      - used in mom_vecinv() to write the diagFreq output
651      - tested (demonstrated) in verification/aim.5l_cs
652    o further mnc-ification
653      - add verification/lab_sea to the list with mnc setups
654      - fix undefined mnc v-names in cd_code
655      - add kpp to mnc output (both snapshot and timeave)
656    o non-hydrostatic code
657      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
658        in calc_gw.F
659      - defaults to viscAh
660      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
661        friction or Leith) in non-hydrostatic mode, as long as there is
662        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
663    o pkg/cost
664      extend simple cost functions to treat time mean quantities
665      (T,U,V) via cost_accumulate_state from cost_tile
666    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
667        be 2 times larger than the minimum size the advection scheme requires.
668        now get a perfect conservation of salt in advect_cs test-exp (updated)
669    o GGL90 (Gaspar's TKE mixed layer)
670      - add horizontal diffusion of TKE, requires exchanges in
671        do_fields_blocking_exchanges, horizontal diffusivity is zero by
672        default. In OPA there is no horizontal diffusion of TKE but the
673        mixing coefficients are computed from a horizontal average of TKE of
674        6 points or so. I think that diffusion has a little more physical
675        justification.
676      - clean up ggl90_calc in the hope of reducing memory usage (this hope
677        was in vain)
678      - mask tke-variable in ggl90_init
679    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
680    o fix biharmonic diffusion on CS-grid.
681    o more obcs stuff
682      - added obcs_external_fields_load as an alternative to the EXF-pkg option
683        for reading boundary values. This routine is called from
684        obcs_prescribe_read
685      - updated obcs_check
686      - changed sponge layer relaxation parameter units for days to seconds
687      - turned off sponge layer by default
688      - changed argument list of OBCS_CALC to myTime+deltaTclock
689      - fixed about 35 bugs in obcs_external_fields_load
690    
691    checkpoint55c_post
692    o obcs stuff
693      - new runtime flags useOBCSprescribe, useOBCSbalance
694      - re-arranged obcs_calc
695      - moved exf_getobcs to obcs_prescibe_read
696        obcs_prescibe_read is called after ORLANSKI stuff
697        and independent of it (executable can contain all).
698      - updated obcs_check
699      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
700        These may be necessary only if tangential velocities are
701        prescribed at OB, not sure, needs testing.
702    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
703      which simplifies the calls and passes the ifc check-bounds test
704    
705    checkpoint55b_post
706    o add a 2D scalar, Z location, exchange_2 routine.
707    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
708      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
709      affects advect_cs results (for the wrong reason): update output.txt
710    o use a more standard discretization for biharmonic viscosity ;
711     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
712      affects results of dome set-up: update output.txt
713    o fix gad_advection.F (CubedSphere part), back to version 1.23
714    o fix bug in mom_vi_del2uv.F (CubedSphere part).
715    
716    checkpoint55a_post
717    o merged code to
718      * prescribe/read time-dependent open boundaries
719        (works in conjunction with exf, cal)
720      * sponge layer code for open boundaries
721      * each boundary N/S/E/W now has its own CPP option
722        (healthy for the adjoint)
723    
724    checkpoint55
725    o up-to-date adjoint of previous breaks
726      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
727      - global_ocean_ebm: adjoint still needs fix (TLM ok)
728      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
729      - carbon: * remove tr1-related adjoint verification
730                * add ptracer as control variable
731    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
732      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
733    
734    checkpoint54f_post
735    o in verification/carbin/ remove experiment related to
736      ALLOW_PASSIVE_TRACER (array tr1 etc)
737      code_ad/ input_ad/ results_ad
738    
739    o add two new packages
740      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
741        + subject to optimization (memory)
742      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
743        + subject to reordering (many GOTOs in the original code)
744        + so far opps is called for every (i,j) point, and then operates in
745          the vertical; one may want to reorder the scheme in order operate in
746          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
747          fields)
748    o overhaul of IO so that we now have flags for MDSIO and/or MNC
749      - all verification tests compile and run with linux_ia32_g77
750      - defaults are compatible with current input files--nothing
751        should change if you were not previously using MNC
752      - MNC output has been added in numerous places (eg. timeave)
753        but there are still a few writes not yet do-able with MNC
754        (this is in progress)
755      - flags now allow for either/or/both use of MDSIO and MNC and
756        documentation will soon follow
757      - numerous small formatting cleanups for ProTeX
758    o add version info (via BUILD_INFO.h) to MNC and stdout
759    
760    checkpoint54e_post
761    o add two new packages
762      - pp81 (Packanowski and Philander, 1981), Richardson number and
763        stratification dependent mixing
764      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
765      - these scheme operate in a similar manner as KPP (without ghat, of
766        course), however there is only one diffusivity that is used for both
767        temperature and salinity (and passive tracers)ç
768    o add offline package
769    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
770      provided by Stephanie Dutkiewicz
771    o genmake2: add ability to search for C compilers and cleanup test output
772      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
773    
774    checkpoint54d_post
775    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
776    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
777      leading to additional shift by 5 days each year of integration
778       (i.e. leading to considerable offset over the years)
779    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
780    o start with no AB and no initial filtering (staggerTimeStep):
781      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
782    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
783      (external loading & cpl import/export stay in forward_step.F)
784    o update coupling interface to work with new staggerTimeStep
785    o change MDSIO ptracers_pickup.
786    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
787    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
788    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
789    
790    checkpoint54c_post
791    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
792      this affects (truncation error) output.txt of test-exp:
793       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
794    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
795    o change Qnet to always be the net heat flux, (+upward).
796      affects (truncation error) output of natl_box exp.: updated
797    o define the max number of passive tracers in PTRACERS_SIZE.h
798    o start to test mnc routinely in exp0
799    o add sea-ice loading (sIceLoad) as a new forcing field.
800    
801    checkpoint54b_post
802    o add testreport "-j JOBS" option for parallel builds (tested and pretty
803       impressive on Altix and Opteron systems)
804    o diagnostics can now write NetCDF files through the mnc package
805    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
806    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
807    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
808      affects (truncation error) output of lab_sea & natl_box exp.: updated
809    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
810    
811    checkpoint54a_post
812    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
813    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
814    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
815    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
816      + internal_wave (shift in writing cg2d_ini_res)
817    checkpoint54a_pre
818    
819    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
820      - modified verification/lab_sea and natl_box_adjoint accordingly
821    
822    checkpoint54
823    checkpoint53g_post
824    o prepare splitting of thermodynamics: store convect.counter in common block
825    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
826      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
827    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
828    o new parameter "nShapS": allow to treat differently S from T (nShapT)
829    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
830    o restore adjointability
831    
832    checkpoint53f_post
833    o modifications that affect AIM experiment results (update output.txt):
834      - no advection of S at top interface Nr (pkg/generic_advdiff)
835      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
836    o AIM pkg:
837      - include stability function into surf.Flux derivative relative to Tsurf
838      - calculate clear-sky radiation & surface temp. change (for diagnostics)
839    
840    checkpoint53e_post
841    o merged cylindrical coord configuration
842    o added rotating_tank experiment
843    checkpoint53e_pre
844    
845    checkpoint53d_post
846    o faulks upgraded: re-generate output.txt that have changed:
847       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
848    o Added Bryan and Lewis, 1979, vertical diffusivity profile
849    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
850    o added Sadourny discretization of Coriolis
851      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
852      - re-enabled use of omega3 (useAbsVorticity)
853    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
854      vector-invariant equations
855      - note: does *NOT* yet use same variable visc. for no-slip BC's.
856    o recoded the lateral boundary conditions for non-hydrostatic w, this time
857      hopefully without new bugs
858      - still to do: biharmonic friction for non-hydrostatic w
859    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
860    o regenerated output for global_ocean_ebm (using -ieee)
861    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
862      of mom_common/
863      - simple re-arrangement of instructions within computing loop
864    checkpoint53d_pre
865    
866    checkpoint53c_post
867    o new version of coupler for AIM+thSIce and Ocean models
868     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
869     - land: change Evaporation of snow
870     - aim with thSIce: fix bug in snow-precip.
871    o changes to calc_gw.F
872     - bug fix for w^2 term near the bottom boundary
873     - (hopefully) improve the lateral slip boundary condtions for use with
874        partial/looped cells
875      - because the bug fix changes two verification experiments anyway (exp5
876        and plume on slope), change the lateral boundary condition from half slip
877        to the value of no_slip_sides
878    o ebm package wasnt quite up to the parallel task. Fixed that.
879    o Adjoint of EBM package + verification
880      * TLM OK
881      * ADM not sufficient accuracy yet (needs further testing)
882    
883    checkpoint53b_post
884    o Commiting new energy balance model to repository
885      * package is pkg/ebm
886      * verif. is verification/global_ocean_ebm
887      * references are in ebm_driver.F
888    C      * X. Wang, P. Stone and J. Marotzke, 1999:
889    C        Global thermohaline circulation. Part I:
890    C        Sensitivity to atmospheric moisture transport.
891    C        J. Climate 12(1), 71-82
892    C      * X. Wang, P. Stone and J. Marotzke, 1999:
893    C        Global thermohaline circulation. Part II:
894    C        Sensitivity with interactive transport.
895    C        J. Climate 12(1), 83-91
896    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
897    C        Destabilization of the thermohaline circulation
898    C        by atmospheric eddy transports.
899    C        J. Climate 7(12), 1870-1882
900    o Will need long integration testing.
901    checkpoint53b_pre
902    
903    o created pkg/mom_common in preparation for variable viscosity code
904    o renamed and split ini_mnc_io
905    o pkg/land: only liquid water can diffuse or run-off
906    o AIM using land: soil wetness availability account for snow
907    o added printMapIncludesZeros to EEPARMS namelist
908    
909    checkpoint53a_post
910    o restore TAMC compatiility for exf_constants.h
911      (no usage of _d in .h)
912    o Additional storing in KPP in an attempt to fix
913      TAMC problem with adjoint of KPP code.
914      (no success...)
915      Identical code works fine with TAF.
916    o Fixed verification/natl_box_adjoint experiments.
917      Initial conditions for Experiments 4 and 5 are now
918      set to "SEAICE_initialHEFF=0", which is more reasonable,
919      and hence gives results closer to that of Experiment 2.
920      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
921    
922    checkpoint53
923    o stable checkpoint with up to date adjoint
924      TLM tests only run for 1st grdchk at the moment. Its unclear if
925      this is a code problem or a problem with resetting code for g_
926      variables that is being autogenerated wrong.
927      Otherwise:
928       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
929       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
930         are both still in chaos following their security messes.
931    
932    checkpoint52n_post
933    o various build (mostly genmake2) changes including:
934      - ability to build/run more easily within Cygwin and MacOS X
935      - more complicated Makefiles with a stronger dependence on Gnu Make
936    o pkg/seaice modifications
937      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
938        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
939        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
940      - changed proxy for geostrophic velocity and updated
941        verification/lab_sea/results/* accordingly
942      - removed ADI dynamic solver from pkg/seaice
943      - replaced all occurrences of 1/CSTICE or 1/CSUICE
944        they caused a segmentation fault under certain circumstances
945      - removed unused field WATR
946    o bug fix in exf-package:
947      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
948         now reflect that.
949    o small fixes in the cal-package:
950      - set reference date to first of January for the 'model'-calendar
951      - failing of cal_CheckDate in cal_FullDate now actually results in a
952        warning
953    o small modifications in exf-package to increase flexibility:
954      - change climtempfreeze from a constant to a runtime parameter that
955        is specified in data.exf_clim (default = -1.9)
956      - introduce runtime parameter windstressmax (default = 2.0) that is
957        specified in data.exf
958    o fix in pkg/thsice:
959      - update Evap (Tsf changes) to be consistent with Latent heat flux
960      - maintain snow precipitation unchanged (even if Tsf >=0).
961     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
962    
963    checkpoint52m_post
964    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
965      this does not change any of the results, because myIter=0 in swfrac always
966      lead to jwtype=2 (the default anyway), but the call makes little sense
967      as a default
968    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
969    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
970      atmospheric model (AIM) to use it ; add a "slab ocean" component.
971    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
972    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
973    o extending useSingleCpuIO option to work with new exch2 I/O format
974      - old-style, missing-tile I/O is still accessible by defining CPP
975        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
976    o monitor package can write to NetCDF files and/or STDOUT
977    o fix re-definition bug in MNC_GRID_INIT_ALL()
978    o doc/api_reference added
979      - a framework for building an API Reference Manual using all
980        the "protex" comments embedded in the code
981      - see pkg/generic_advdiff, pkg/mnc for examples
982    o MNC:
983      - make myThid the last argument for all subroutines
984      - new default for the grid files: NO halos
985      - add useMNC and other run-time flags
986      - separate per-file-group handling of the unlimited dimension
987      - early initialization of MNC w/ flags read at the eeboot stage
988        and lookup tables set in initialize_fixed
989      - write all MNC output to a freshly-created directory
990    o thermodynamics sea-ice (thsice) is now tested with testreport.
991    o test exp. advect_cs: use the standard cs32 grid ; update output.
992    o Added functionality to grdchk:
993      pick global i,j,k position (or nearest wet) where to perform check.
994    
995    checkpoint52l_post
996    o new land formulation:
997      a) use ground enthalpy as prognostic variable to ensure exact
998         energy conservation.
999      b) account for water temperature and for latent heat of freezing
1000         in all processes (rain, run-off, ground storage)
1001      c) compute surface and ground temperature implicitly.
1002    o aim_v23 modification for new land model:
1003      a) Treat separately land / ocean / sea-ice surface fluxes
1004         to allow implicit computation of land & sea-ice surface temp.
1005      b) add snow precipitation.
1006    checkpoint52l_pre
1007    
1008    o fix problem (when 1 tile is empty) in min/max monitor.
1009    o fix bug in timeAve (u,vZetatave in common block)
1010    o no restoring terms under ice for pkg/seaice
1011    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1012    o bug fix for pkg/seaice pickups
1013    o change MNC call locations and add coordinate attributes
1014    o mask vorticity at the corner ; affects global_ocean.cs output
1015    o fix ini_curvilinear_grid ; test CS experiments with mpi
1016    o aim.5l_cs: modify sea-ice fraction input file ; update output
1017    o exf: Adding simple range check routine for exf fields after read
1018    
1019    checkpoint52k_post
1020    o removed top-level directory "diags"
1021      - we migrated these functions to pkg/timeave a long time ago
1022    o fixed bug introduced in pkg/monitor
1023    o accuracy ctrlprec = 32 insuffient for gradient checks using
1024      averaged fields (I/O via cost_averages)
1025      -> use ctrl.h in active_file*.F to control I/O precision.
1026    o paramter list of CALL ADTHE_MAIN_LOOP
1027    o added initial do_the_model_io to ecco
1028    o set all ...Freq to zero after cost_final
1029      taveFreq, dumpFreq, pChkptFreq
1030    o MAIN and ECCO differentiability restored
1031    
1032    checkpoint52j_post
1033    o fix nchklev in tamc.h for global_ocean...
1034    o Bringing flow and store directives up-to-date
1035    o Really weird thing!
1036      call do_the_model_io from the_main_loop with parameters
1037      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1038      TAF places a faulty re-call of initialise_varia
1039      after cost_final call which should not be there!
1040    checkpoint52j_pre
1041    
1042    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1043      error messages
1044    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1045    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1046      debug output
1047    o modfied mdsio_writefield.F to handle non-global files under exch2
1048    o update AIM Cubed-Sphere exp (aim.5l_cs):
1049      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1050    o update AIM Equatorial Channel exp:
1051      use standard aim_v23 pkg and change the SST fields to be more realistic.
1052    o globalFile now works with exch2
1053    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1054      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1055    o limit timeave output for hi-res integrations
1056    
1057    checkpoint52i_post
1058    o removed CPP_EEOPTIONS.h from verification/*/code
1059    o updated the tiling for global_ocean_pressure
1060    checkpoint52i_pre
1061    
1062    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1063      the old pkg/aim).
1064    
1065    checkpoint52h_pre
1066    o shortened offending lines in exch2_send_rx?.template
1067    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1068    o genmake2: add build & execute test for NetCDF code
1069    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1070      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1071    o added useSingleCPUIO flag to monitor.F and mon_out.F
1072    o added temporary hack for sea-ice dynamics on the cube:
1073      metric terms are ignored and it is assumed that
1074      there is no sea-ice on cube faces 1, 2, 4, and 5.
1075    
1076    checkpoint52f_post
1077    o added exch2 cube routines to pkg/exch2
1078    o modified hs94.cs-32x32x5 to use it
1079    o added new grid files to hs94.cs-32x32x5
1080    checkpoint52f_pre
1081    
1082    checkpoint52e_post
1083    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1084      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1085    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1086      to work with implicit vertical advection and AB ;
1087    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1088    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1089     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1090    checkpoint52e_pre
1091    
1092    o fix bug in impldiff when Nr=1 or Nr=2.
1093    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1094    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1095    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1096      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1097    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1098    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1099    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1100    
1101    checkpoint52d_post
1102    o re-tiled many expts to allow comparison in multi-processor mode
1103      - updated output accordingly
1104      - changed hs94.128x64x5 to use intial T from file rather than use the
1105        random number generator
1106    o add infrastructure in model routines for fizhi and gridalt packages
1107    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1108    o changes to permit hi-res, cubed-sphere, configuration
1109      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1110      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1111      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1112        of surface winds for the cube
1113      (A verification experiment, based on global_ocean.cs32x15, but with
1114       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1115       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1116       complete with example surface forcing files and matlab scripts to look
1117       at the output and compare it with that of global_ocean.cs32x15.)
1118    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1119       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1120       to conform to the common rule.
1121    o check-in the first version of the coupler + interfaces for multi-components
1122       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1123       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1124       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1125       - ocean and atmos. share the same horizontal grid (no interpolation).
1126       - exchanges between component and coupler is done in forward_step
1127    o new verification experiment, cpl_aim+ocn:
1128       coupled ocean - AIM atmosphere on cs32 grid.
1129    
1130    checkpoint52d_pre
1131    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1132    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1133    
1134    checkpoint52c_post
1135    o Fixing OPTIONS files for use of exf:
1136      - ALLOW_ECCO not needed
1137      - ECCO_CPPOPTIONS.h should not be included from
1138        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1139        as has been the case in the past
1140      - All cal/exf related options are currently set in
1141        single header file. Should remain so until we
1142        agree on a consistent new policy.
1143    o Removed all CPP options for cal package.
1144      cal has no more CPP options.
1145    o modified STOREs in GAD_ADVECTION
1146    o corrected key comp. for passkey
1147    
1148    checkpoint52b_post
1149    o new version: "thsice" of thermodynamic sea-ice pkg:
1150     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1151     - modify fluxes but do not change theta directly;
1152     - light cleaning of bulk_force pkg (still needed with thsice).
1153     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1154       + output_thsice.txt to test thsice & bulk_force pkgs.
1155    o put back grid & coriolis monitor output.
1156    checkpoint52b_pre
1157    
1158    o call "do_the_model_io" at the beginning (=> dump initial state)
1159    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1160    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1161      (need info on NUMBER_OF_PTRACERS)
1162    o missing PTRACERS headers in some routines
1163    o default tamc.h in pkg/autodiff supposed to crash
1164      to ensure proper customization
1165    
1166  checkpoint52a_post  checkpoint52a_post
1167  o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp  o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1168    - moved surfaceTendencyTice from pkg/seaice to main code    - moved surfaceTendencyTice from pkg/seaice to main code

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