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revision 1.268 by jmc, Fri Mar 12 20:57:21 2004 UTC revision 1.605 by mlosch, Tue Feb 7 11:48:22 2006 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 add a new package shelfice which enables us to model the circulation
8      underneath shelf-ice with draughts of hundreds of meters.
9     - works
10     - to do: + include improved thermodynamics
11              + check whether kSurfC (from model/inc/SURFACE.h) can be used
12                instead of new field kTopC
13              + can we use topoFile, Ro_surf and existing code in ini_depth.F
14                instead of new field R_shelfIce and new code in ini_depth.F
15                and ini_mask_etc.F?
16    o seaice pkg:
17     - add a cpp-flag to include a simple formula for a salinity dependent
18       freezing point of sea water at the surface
19     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
20       meridional stresses are now different (and hopefully correct)
21    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
22       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
23       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
24    o pkg/diagnostics: add options and parameters for regional-statistics
25       diagnostics ; define regions by reading a region-mask from a file
26       (might add other options later)
27    o pkg/bulk_force:
28     - add option and parameters to use AIM surface-flux formulae.
29     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
30       others forcing fields (defined in PARM05, parameter file "data") are loaded
31       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
32     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
33     - use the right EXCH call for uwind,vwind (to work on CS-grid).
34     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
35       and parameters (note: calcWindStress replaces .NOT.readwindstress).
36     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
37    
38    checkpoint58
39    o add "--embed-source" option to genmake2 which, when the supporting
40      tools can be compiled (as determined by genmake2) will turn on the
41      embed_files package which then embeds the entire MITgcm source code
42      (*.[fFhc] + Makefile) used for the build within the executable
43      - requested by CNH but off by default
44      - adds a paltry <9MB to the mitgcmuv executable in most cases
45      - only writes the output when useEMBEDSRC in eedata is true
46    o clean up 3-dim. relaxation codes:
47      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
48      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
49      * Thanks to Tom Haine for testing!
50    
51    checkpoint57z_post
52    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
53      affects output (@ truncation level) of exp. plume_on_slope ; updated.
54    o fix the pickup behavior for obcs in combination with ptracers
55    o fix a bug in ptracers_external_fields_load
56    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
57      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
58    o transfered surface NH pressure to eta field (if exactConserv).
59    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
60         and update lab_sea output.txt file.
61    o completing 3-dim. relaxation code: additional term
62         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
63      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
64      * At compile time, in "EXF_OPTIONS.h" set
65          #define  ALLOW_CLIMTEMP_RELAXATION
66          #define  ALLOW_CLIMSALT_RELAXATION
67      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
68          tauThetaClimRelax3Dim = 15552000.0,
69          tauSaltClimRelax3Dim  = 15552000.0,
70      * 3 cases:
71          1) Use a constant-in-time 3-dim. field
72          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
73          3) Real-time relax. to time-evolving prescribed field
74    o Adding Laplacian-type smoothness constraint on
75      initial and boundary (forcing) controls (ic, bc)
76      * enable at compile-time via
77        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
78      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
79      * Absolute scale somewhat unclear so far
80      * no area weighting was included since no other cost term does so far
81    
82    checkpoint57y_post
83    First step for a NLFS adjoint
84    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
85    o new init. routines for calc_r_star, calc_surf_dr
86    o still need to deal with ini_masks_etc
87    o testreport seemed happy
88    checkpoint57y_pre
89    
90    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
91    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
92    o add new offset feature to offline pkg (plus minor cleanup)
93    o cfc fixes for final year of integration
94    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
95      be in GCHEM_OPTIONS).
96    
97    checkpoint57x_post
98    o fix testreport Pb in multiple test experiment.
99    o cleanup our namelist syntax in verification:
100      - make it more F95 standards compliant (some work still needed)
101      - allows the vast majority of our tests to work with gfortran
102    o Non-Hydrostatic:
103     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
104     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
105    o Allow to apply AB on T,S rather than on AB(gT,gS):
106     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
107     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
108       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
109     - need a "clever" read_pickup to restart from the other AB formulation
110    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
111    o remove some unused variables (reduces number of compiler warnings)
112    o adjoint
113      * Disable useVariableViscosity for adjoint for time being
114        (there are a number of extensive recomputations)
115      * Initialize certain variables needed for adjoint
116    
117    checkpoint57w_post
118    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
119                 fix the singleCpuIO RS version of MDSWRITEFIELD
120       and add a WARNING if using globalFiles=T with multi-processors.
121    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
122      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
123    o tracer advection scheme:
124      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
125       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
126       was not very convenient).
127      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
128       (further tests needed for the implicit DST & Flux-Limiter schemes).
129    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
130      and sRef for convenience, handy, when you want to initialize
131      ptracers in a large domain with a constant non-zero value. Also,
132      untangle ptracers_init.F a little.
133    
134    checkpoint57v_post
135    o change dome exp. to use variable viscosity in side-drag terms.
136    o remove all the files from the cfc_offline test since they are now
137      incorporated into tutorial_cfc_offline which has been producing
138      identical results for a few days of testing
139    o add new parameter: sideDragFactor to enable half-slip-side BC
140      and change side-drag S/R to use viscosity from mom_calc_visc
141      (can switch back by setting sideDragFactor=0.); affects results at
142      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
143       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
144    o vorticity & strain are now computed without masking, to account for
145      no-slip-side BC in variable viscosity calculation ; mask is applied
146      anyway later on, before computing advection/coriolis terms.
147    o modify exp4 to test new obcs support for reading from external files
148      and for passive tracers
149    o fix behavior of ptracers_monitor when monitor output is written to a
150      netcdf-file; still not independent of monitor.F (writes in the same
151      file).
152    o change default value of tRef (put a uniform, meaningful value for ocean
153      & atmos) and initialize sRef (was missing, as Martin mentioned).
154    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
155      to be proportional to enstrophy dissipation length.  Thus,
156       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
157      This is now consistent with Smagorinsky and with the manual.
158    
159    checkpoint57u_post
160    o OBCS and PTRACERS: add open boundary support for passive tracers
161      - either use homogenous (pseudo) v.Neumann conditions or prescribe
162        OB-values from file; this is not different from the way theta and salinity
163        are treated
164      - however, Orlanski-radiation conditions are not supported, and the model
165        will stop if you use pTracers and Orlanski at the same time.
166      - beefed up the rountine obcs_external_fields_load: now only those open
167        boundary values are overwritten with values from files for which there
168        are really files, otherwise the OB-fields remain untouched. This makes
169        it possible to use different OBs at different ends of the domain (as
170        with EXF)
171    o reduce number of exch calls in shap_filt (s2).
172    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
173      truncation level) 4/5 MLAdjust test results (11&12 digits match).
174    
175    checkpoint57t_post
176    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
177    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
178      same truncation, independent of the face number: affects affects several
179      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
180    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
181      note that biharmonic viscosity + no-slip was not tested in any experiment.
182    o fix bug in non-linear free-surf side-drag ; generate new output for
183      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
184    o make mnc honor the writeBinaryPrec flag for most kinds of output
185    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
186    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
187      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
188    o add brackets in multi-terms sum to get same truncation, independent of
189      the face number (manage to get exactly same value of gU,gV at the cs-edge)
190      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
191    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
192      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
193      a maximum grid-scale Reynolds number.  Also, changes all length calculations
194      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
195      Suggested values of viscosity parameters found in mom_calc_visc.
196      Many new viscosity diagnostics available.
197    
198    checkpoint57s_post
199    o Add clearing-house for viscosity calculations, mom_calc_visc and
200      correct numerous bugs in LeithD and Smagorinsky discretizations.  
201      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
202      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
203      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
204      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
205      The Strain-Tension form is now called with useStrainTensonVisc=.true.
206      ViscAhStrain and viscAhTension are now retired.
207    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
208    o In response to JMC's bug report, genmake2 now ignores any soft-links
209      that it finds in the *current* directory when searching for files.
210      Soft-links found in any other source directories will still work as
211      they did before.
212    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
213      a C routine to unlimit the stack size
214    o mnc-ify pkg/aim snapshot vars
215    o mnc-ify pkg/land as requested by Daniel
216    o various changes to mnc including:
217      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
218      - output can now be grouped so that all files within a group
219          change the ITER portion of their names in lock-step together
220      - can now read ("global") PER-FACE (in addition to PER-TILE) files
221          and works with both EXCH1 and EXCH2 (but needs more testing)
222      - writing works for all verification test cases w/ g77 on Linux
223    
224    checkpoint57r_post
225    o make MNC variable initialization happen earlier
226    o add diagnostics for (almost) each term of the momentum Eq.
227    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
228    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
229    o remove MINIMAL_TAVE_OUTPUT option ;
230      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
231    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
232      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
233    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
234    o add time-dependent SST, SSS control
235    o cost terms in ecco/ modularized (new cost_generic.F)
236    o cost_averages routines are modularized (new cost_averagesgeneric.F)
237    o new infrastructure for seaice model vs. obs misfits in seaice/
238      * driver from the_main_loop.F is seaice_cost_driver.F
239      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
240      * gradient check in Exp. 6a of natl_box_adjoint/
241    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
242      (see README file)
243    
244    checkpoint57q_post
245    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
246    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
247      - bug was reported by Jean-Michel and Ian Fenty
248    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
249      update exp. cpl_aim+ocn output.
250    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
251      Needed for high-res. runs with large global files
252      to be able to limit tapelev size
253    o Changed some tests for adjoint:
254      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
255      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
256      * global_ocean.90x40x15/ back to default 3-level checkpointing
257    o Modifications to enable scripted COMMON to MODULE conversion
258      * verification/OpenAD/code/ has necessary scripts and description;
259      * converts, compiles and runs successfully;
260    
261    checkpoint57p_post
262    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
263    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
264      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
265    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
266    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
267      (was already the case for dissipation with mom_vecinv,
268       and also the case for grad.PhiHyd when staggered-timeStep)
269      This will allow to put dissipation out-off the AB time-stepping.
270     Unfortunately, affects truncation error. Update output of exp. that "fails"
271      (cg2d matching number) and leave the others for later: front_relax(10),
272      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
273      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
274    
275    checkpoint57o_post
276    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
277      (2) its ready to be documented during the 20050801 DocFest
278    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
279      for ideal_2D_oce and lab_sea on linux_ia32_g77
280    o set to #undef CTRL_SET_OLD_MAXCVARS_30
281      in global1x1_tot/code_seaice_adj to access indices 32, 33
282      (worth another tag)
283    
284    checkpoint57n_post
285    o adding precip control xx_precip 32
286    o adding swflux control xx_swflux 33
287    o Replacing 10 forcing penalty cost routines by 1 generic.
288    o Implementing partitioning in time-mean and variable adjustment
289      for atmos. state.
290    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
291    o in natl_box_adjoint:
292      * updated exp 1 to 10
293        (but does not have time-mean vs. variable split results yet)
294    o updated global1x1/*_seaice_adj/
295      to incorporate latest changes
296    o enable useSingleCpuIO for mdsio vector routines
297      (applies in particular to tapelev I/O)
298    o removed inefficient K-loop in all active_file*control*.F
299    
300    checkpoint57m_post
301    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
302      and advect_cs (use EXCH-2 and standard cs-32 grid files).
303    o pkg/exch2: filling of face-corner halo regions is optional
304      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
305    
306    checkpoint57l_post
307     tag before updating tutorials (pre-release-2)
308    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
309       for output and interpolation of input fields onto model grid)
310    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
311       Affects results of exp. rotating_tank ; update output.txt.
312    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
313          and taking the square quantity and/or using a fraction-weight field.
314    o fix aim_diagnostics_init.F mate numbers.
315    o add mnc output capability to diagnostics/diagstat and update
316      our cvsignore files for the ACSII output generated
317    
318    checkpoint57k_post
319    o lab_sea now uses diagnostics package and provides a suite of
320      new EXF diagnostics output.
321    
322    checkpoint57j_post
323    o exf
324      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
325        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
326        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
327      * extended diagnostics output
328        - now includes all EXF variables
329        - hs, hl moved to common block
330        - separate S/R for diagnostics, called after ctrl vector is added
331        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
332        - EXFqnet contains true Qnet (i.e. includes qsw)
333      * updated verif. lab_sea, global_with_exf
334      * Rearranging hflux (exf_mapfields -> exf_getforcing)
335        to ensure that diagnostics sees a true EXFqnet
336    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
337    o diagnostics pkg: change pointers so that 1 diagnostic can be used
338      several times with different frequencies.
339    o mnc-ify the thsice package as requested by Daniel Enderton
340      - the monitor--MNC output needs work
341      - many attributes need to be added (most are currently blank)
342    o mnc-ify theaim_v23 package as requested by Daniel Enderton
343      - many attributes need to be added (most are currently blank)
344    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
345    o add Sadourny like discretization to the 4th.O vorticity advection scheme
346    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
347      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
348         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
349    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
350     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
351    
352    checkpoint57i_post
353    o Diagnostics package was changed: diagnostic allocation is now deactivated
354      by setting an empty file name in the namelist (used to be by setting 0 frequency)
355    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
356      add 1rst Order upwind vertical Shear.
357    o add a quick fix for A/B checkpointing in OFFLINE mode
358    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
359      end-run around the C/Fortran linking horror in eesup/src/timers.F
360    o added pkg/runclock: allows user to terminate run based on wall clock
361    o added non-hydrostatic scaling parameter: nh_am2
362    o pkg/my82: futile attempt to make results compiler-independent by adding
363      some "_d 0", etc. no effect.
364    o for mnc output, fill the 'T' coordinate var with myTime and create a
365      separate 'iter' variable for iteration count
366    o pkg/diagnostics:
367      add new capability: output of Global/Regional & per-level statistics ;
368      tested against monitor output (including land & thSIce) on various exp.
369    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
370    
371    checkpoint57h_done
372      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
373      data.diagnostics, data.gchem, data.ptracers) is done.
374    
375    o pkg/diagnostics: prepare for Global/Regional statistics.
376      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
377    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
378      and rename it: DIFFERENT_MULTIPLE
379    
380    checkpoint57h_post
381    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
382    o pkg/diagnostics: change output frequency, now in seconds (instead
383      of Nb of iterations). This requires to change data.diagnostics.
384    checkpoint57h_pre
385    
386    o in mnc, let the user create the output dir if both mnc_outdir_date
387      and mnc_outdir_num are false
388    o add fflags() to pkg/diagnostics which allows one to specify, on a
389      per-file basis, the file precision [default behavior is unchanged]
390    o added diagnostics to pkg/kpp, including computation of mixed layer
391      depth based on a temperature/density criterion
392    o updated verification/natl_box to test the new pkg/kpp diagnostics
393    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
394    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
395    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
396      not mnc -- this mistake was found by JMC and is now corrected
397    
398    checkpoint57g_post
399    o add Adams-Bashforth 3rd Order time stepping:
400      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
401      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
402    checkpoint57g_pre
403    
404    o make lambda[Theta,Salt]ClimRelax spatially varying
405      (default remains spatially uniform constant based on tau)
406    o added new control variables
407      * init. uVel, vVel, etanN
408      * lambda[Theta,Salt]ClimRelax
409    o separate masks used for ctrl_pack/unpack 'from write_grid' output
410      (suggested by G. Forget)
411    
412    checkpoint57f_post
413    o add parameter "baseTime" = model base time = time at iteration zero
414      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
415      account for baseTime shift
416    o move Coriolis arrays from PARAMS.h to GRID.h
417    checkpoint57f_pre
418    
419    o mnc-ifying the seaice package
420    o introduced an alternative length scale calculation for use in the limiting
421      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
422    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
423    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
424      as well as grad(vort3).  Made it compatible with both approximate form
425      for the cubed sphere and full form of these gradients.  Added flag
426      useFullLeith to select between approximate and full form.  
427    o add "d0" in getcon.F to reduce differences between compilers/platforms
428      update output.txt of exp. fizhi-gridalt-hs
429    o change port_rand funtion to allow to set the seed.
430    o fix obscure MNC bug involving conversion between reals and integers
431      - it caused no problems with certain (eg. gcc, ifc) compilers but the
432        new version is now more standards-compliant
433    o adjoint-related modifications
434      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
435      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
436      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
437    
438    checkpoint57e_post
439    o Adding eddy stress controls a la Ferreira et al.
440    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
441    
442    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
443      update output.txt of exp. fizhi-gridalt-hs
444    o add more "Z" dimensions and associated coordinate vars to MNC
445    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
446    o parameter calendarDumps: when set, approximate months (30-31 days) and years
447      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
448      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
449      months and years.  Requires pkg/cal.
450    o diagnostics: add pickup functionality
451      - off by default for backwards compatibility
452      - current version only uses MDSIO -- MNC will be added
453    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
454    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
455    
456    checkpoint57d_post
457    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
458    o modify verification/ideal_2D_oce so that it tests the creation of mnc
459      output from the diagnostics package
460    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
461    o make genmake2 more portable by using ".$FS" instead of ".f" for more
462      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
463    o add coordinate variables to the MNC output from the diagnostics package
464    o change MNC-flags default value: true when useMNC=TRUE
465    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
466      the ability (off by default) to read the grid information using MNC
467    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
468    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
469    o do snap-shot diagnostics at the middle of the time-interval (instead of
470      at the end).
471    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
472      new test for AIM with thSIce + slab-ocean
473    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
474    o move state variable diagnostics to the beginning of the time step ;
475      (note: still needs some work specially for snap-shot diagnostics)
476      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
477    
478    checkpoint57c_post
479    o Change testing option (-ieee) to get closer agreement between g77 & ifort
480    o generate new output.txt files on faulks with g77 & the new -ieee option
481    checkpoint57c_pre
482    
483    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
484      update output.txt of exp. global_ocean.90x40x15
485    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
486      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
487    o add saltFlux(+File) forcing capability with periodicExternalForcing
488    o allow to use pkg diagnostics for GM-Redi & ThSIce output
489    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
490    o improvements for the MNC output from DIAGNOSTICS:
491      - correct handling of the unlimitied dimension
492      - all dims now have associated coordinate variables
493      - variables located at U, V, and Corner ("Z") points are now written
494        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
495        *all* data points are output
496    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
497    o added pkg/seaice/seaice_monitor.F
498    o mdsio_readfield.F can now read files visible only to master MPI process.
499    o pkg/seaice: some test code for ice-modified ocean stress
500    o exf_getffields interpolation defaults to bilinear for all scalar forcing
501      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
502      spurious negative numbers for precipitation and humidity.  Will cause
503      some small numerical differences for integrations using pkg/exf/exf_interp.F.
504    o pkg/ctrl/
505      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
506        May be enabled via doPackDiag
507      *  introduce z-scaling of
508         + gradient (doZscalePack) and
509         + control (doZscaleUnpack)
510    o pkg/mdsio/
511      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
512      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
513    
514    checkpoint57b_post
515    o simplify options in diagnostics_fill arguments (remove weird combinations)
516    o fix MNC coordinate variables so that they now contain per-face index
517      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
518      general, EXCH2 grids are only aligned to a "local" coordinate system
519    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
520    o Implement instantaneous output within pkg diagnostics:
521      setting a negative frequency in data.diagnostics produces
522     "snap-shot" output (as opposed to time-average if freq > 0)
523    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
524      NOTE: change ptracer diagnostics name: use 2 characters to work with
525            more than 9 tracers. Add also diagnostics of advect & diffus flux.
526    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
527      becomes the coordinate variable for the 'T' dimension
528    o add CF-style coordinate variables to MNC
529      - just a first cut:  numbers are meaningless on the cubesphere and
530        missing along the T axis but otherwise it works!
531    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
532    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
533    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
534      this is based directly on what the model compute, so that the content of
535      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
536    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
537    o clean up build options files for SunOS, in particular
538      - remove -traditional from xmakedepend
539      - change -xarch=v9 to -xarch=native for f77
540      - restore use of make (not gmake)
541      - add CC=gcc if using g77
542    o changes per discussion of AM, JMC, & EH3 today:
543      - move redundant "grid" variables out of "state" -- in preparation of
544        creating proper CF-style coordinate variables and in recognition
545        that any/all grid variables can be easily copied (eg. w/NCO) from
546        the grid files into any of the other NetCDF files
547      - *always* output grid variables with MDSIO (this will eventually be
548        changed)
549      - output MNC grid file if useMNC is true
550    o every instance of _END_MASTER() has been found and replaced with
551      _END_MASTER( myThid ) in order to satisfy certain picky Sun
552      preprocessors
553    o re-arrange diagnostics pkg initialisation:
554     - allow each package to extend the available diagnostics list
555     - add some checking and fix small problems (multi-threaded, ...)
556     - new S/R diagnostics_fill (replace fill_diagnostics):
557       look through the short list of active diag. (instead of the long list)
558       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
559    
560    checkpoint57a_post
561    o this set of changes restores TAMC compatibility
562      tested for global_ocean.90x40x15 adjoint on trough
563      (what a pain)
564    
565    checkpoint57a_pre
566    o some modifs in tools/build_options for sunos
567    o call ctrl_pack for ctrl at end for optimcycle=0
568    
569    checkpoint57
570    o add horizontal bi-harmonic viscosity for vertical velocity
571      - new parameter viscA4W (defaults to viscA4)
572      - affects only non-hydrostatic code
573      - to be done: no-slip lateral boundary conditions
574    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
575    o implement Implicit Vertical advection for pTracers
576    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
577      (implemented also for implicit vertical diffusion & advection)
578    o OBCS: extend application of tracer open boundary conditions
579      to a strip beyond the boundary of width Olx/Oly
580    o add call monitor to TAF set of required calls (flow directives)
581      and include in natl_box_adjoint
582    o untangle a few ifdefs related to cost, ctrl, autodiff
583      untangel a few ALLOW_ECCO_OPTIMIZATION
584    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
585      (theta2, salt2 in ecco_cost_weights)
586    
587    checkpoint56c_post
588    o OBCS as control variables
589      - update ctrl_ad_diff.list, obcs_ad_diff.list
590      - remove balance of obcs controls from default
591      - fix index bug nobcs in ctrl_init
592      - fix dummy fields filen in ctrl_pack
593      - add dummy weights for obcs
594    o lsopt: comment out fort.94 output
595    o optim:
596      - remove unnecessary header files
597      - adjusted namelists
598      - add xerbla.F to Makefile
599    o exf:
600      - multiple modifications of exf_check_range
601      - unit change in exf_init_runoff from [m/year] to [m/s]
602    o mdsio:
603      - i/o-vector change debugLevel from debLevA to debLevB
604    
605    checkpoint56b_post
606    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
607      is called from DO_THE_MODEL_IO
608      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
609      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
610      - clean up PTRACERS_WRITE_TIMEAVE a little
611    o add another verification experiment that tests both the cfc-pkg and
612      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
613      reactive tendencies treated inline with regular timestepping
614    o testreport previously did a lousy job of comparing small numbers, so
615      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
616      implemented in the little c-progam tmp_cmpnum.c which is embedded in
617      testreport.
618    o ptracers_monitor: bug fix for MPI
619    
620    checkpoint56a_post
621    o GCHEM: finish reorganizating the package
622      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
623        (introduces another 3D-array for each passive tracer, but only if
624        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
625        gchemTendency is not needed because the timestep is done separately)
626      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
627      - GCHEM is now---more or less cleanly---separate from PTRACERS
628      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
629        so clear to me how that should be done in a general way.
630    o CFC: improve formatting of output in CFC_ATMOS
631    o PTRACERS:
632      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
633        that ALL experiments with ptracers enable can be checked. This makes
634        GCHEM_MONITOR obsolete.
635      - include a runtime parameter PTRACERS_monitorFreq that defaults to
636        monitorFreq
637      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
638    o add PTRACERS (PTR0[1-5]) to testreport output
639    o exf_check_range:
640      * default changed to .TRUE.
641      * will check values for niter0 if debLevA, every timestep if debLevB
642      * STOP in exf_check_range if 'out of range'
643      * range chosen generous to allow for potential extema
644      TBD: a version with stricter range
645           permitted range would be runtime parameters
646    o GMredi:
647      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
648      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
649      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
650    o GCHEM:
651      - move call to GCHEM_FORCING_SEP, so that it is now called before
652        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
653      - introduced a useGCHEM runtime flag and applied it everywhere.
654      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
655        this flag is now only visible within GCHEM-pkg routines.
656      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
657        be replaced by a 3D array that is computed before thermodynamics; for
658        this, the tracer ID iTracer had to be included into the parameter list
659        of ptracers_forcing
660      - set up forward_step to call gchem_forcing, that will replace
661        gchem_forcing_int in ptracers_forcing
662      - cleaning up
663    o small cleaning of exch2: remove files that are also in eesupp/src
664    
665    checkpoint56
666    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
667    o mnc: cleanup "full" files--fixes out-of-memory problem
668    o ECCO-GODAE
669      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
670      * fully merged and updated from SIO code
671        windstress sign change affects
672        - exf_inscal_[u/v]stress
673        - sign of xx_tau[u/v] adjustments
674        - signs in cost_scat
675      * ctrl_get_gen: avoid update of tau[u/v] for first few days
676      * natl_box_adjoint updated and compressed
677      * 2-level checkpoint switch added
678        (tested in EXP. 1 of natl_box_adjoint)
679      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
680    o SVD
681      * first complete, non-hacked version for SVD calculations
682      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
683        performed via direct access files admtlm_vector.it????
684        (via ctrl_[un]pack)
685      * optimcycle is used for ARPACK iteration counter
686        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
687      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
688        and add linear transforms where necessary
689      * controls are initial/final SST, SSS (can be extended; need to check
690        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
691    o mdsio: filename info to both stderr, stdout
692    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
693      from sign change
694    
695    checkpoint55j_post
696    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
697      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
698    o add consistent build directories and .cvsignore files to verification
699    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
700    o make all subroutines 30 or less characters in length for certain older
701      compilers to work (a thorough search only turns up two routines in
702      pkg/ptracers)
703    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
704      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
705    
706    checkpoint55i_post
707    o change arrays for total vertical diffusivity (2.D if explicit,
708      3.D if implicit) ; each ptracer uses its own background value.
709    o added mnc/NetCDF output capability to ocn_compon_interf
710      - added bits to verification/cpl_aim+ocn so that it can run on
711        ITRDA and other clusters without the mpirun "-wd" option
712    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
713      configuration
714    o give MNC the ability to create additional files rather than
715      exceeding a specified file size limit "MNC_MAX_FILESIZE"
716      - the default is just less than 2GB which is a practical limit
717        on many systems
718    o Compute the non-local term using either KPP vertical diffusivity (=default)
719       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
720    
721    checkpoint55h_post
722    o add verification test "vermix"
723    o remove all the *_ioinc flags and replace with the single global
724      outputTypesInclusive flag
725    o allow to set a vertical profile of vertical diffusivity for T & S
726    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
727    o useMNC moved from data.mnc to data.pkg
728    
729    checkpoint55g_post
730    o Renaming carbon AD experiments to comply with testreport conventions
731    o Updating adjoint of Held-Suarez hs94.1x64x5
732    o Fixing directives for non-ECCO forward_step, after ECCO directives
733      have been fixed to avoid recomp. of do_oceanic_phys
734      Works well for global_ocean.90x40x15,
735      but recomp. issue remains for carbon
736    o Updating adjoint output for natl_box_adjoint after
737      pkg/ecco has been modified (see taga c55d_post)
738    
739    checkpoint55f_post
740    o rename to timeave_init_fixed
741    
742    checkpoint55e_post
743    o some delicate re-shuffle of store directives to avoid one
744      extra call of do_oceanic_physics
745      affects ecco_the_main_loop.F, do_oceanic_physics.F
746      checkpoint_lev1_directives.h
747    o NB: this may break global_ocean adjoint temporarily,
748      but it is clear how to fix it. Will do later, need this now.
749    
750    checkpoint55d_post
751    o ECCO specific cost function terms (up-to-date with 1x1 runs)
752    o ecco_cost_weights is modified to 1x1 runs
753    o modifs to allow observations to be read in as
754      single file or yearly files
755    o enable to read exf forcing fields as either
756      single file or yearly files (flag useExfYearlyFields)
757    checkpoint55d_pre
758    
759    o switch between 2-level and 3-level checkpointing
760    o add ability of MNC to write local and "partial" (eg. 2D slices where
761      the full 3D field is never actually stored) arrays to NetCDF files
762      with the correct (that is, the complete multi-dimensional) set of
763      array indicies
764      - used in mom_vecinv() to write the diagFreq output
765      - tested (demonstrated) in verification/aim.5l_cs
766    o further mnc-ification
767      - add verification/lab_sea to the list with mnc setups
768      - fix undefined mnc v-names in cd_code
769      - add kpp to mnc output (both snapshot and timeave)
770    o non-hydrostatic code
771      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
772        in calc_gw.F
773      - defaults to viscAh
774      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
775        friction or Leith) in non-hydrostatic mode, as long as there is
776        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
777    o pkg/cost
778      extend simple cost functions to treat time mean quantities
779      (T,U,V) via cost_accumulate_state from cost_tile
780    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
781        be 2 times larger than the minimum size the advection scheme requires.
782        now get a perfect conservation of salt in advect_cs test-exp (updated)
783    o GGL90 (Gaspar's TKE mixed layer)
784      - add horizontal diffusion of TKE, requires exchanges in
785        do_fields_blocking_exchanges, horizontal diffusivity is zero by
786        default. In OPA there is no horizontal diffusion of TKE but the
787        mixing coefficients are computed from a horizontal average of TKE of
788        6 points or so. I think that diffusion has a little more physical
789        justification.
790      - clean up ggl90_calc in the hope of reducing memory usage (this hope
791        was in vain)
792      - mask tke-variable in ggl90_init
793    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
794    o fix biharmonic diffusion on CS-grid.
795    o more obcs stuff
796      - added obcs_external_fields_load as an alternative to the EXF-pkg option
797        for reading boundary values. This routine is called from
798        obcs_prescribe_read
799      - updated obcs_check
800      - changed sponge layer relaxation parameter units for days to seconds
801      - turned off sponge layer by default
802      - changed argument list of OBCS_CALC to myTime+deltaTclock
803      - fixed about 35 bugs in obcs_external_fields_load
804    
805    checkpoint55c_post
806    o obcs stuff
807      - new runtime flags useOBCSprescribe, useOBCSbalance
808      - re-arranged obcs_calc
809      - moved exf_getobcs to obcs_prescibe_read
810        obcs_prescibe_read is called after ORLANSKI stuff
811        and independent of it (executable can contain all).
812      - updated obcs_check
813      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
814        These may be necessary only if tangential velocities are
815        prescribed at OB, not sure, needs testing.
816    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
817      which simplifies the calls and passes the ifc check-bounds test
818    
819    checkpoint55b_post
820    o add a 2D scalar, Z location, exchange_2 routine.
821    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
822      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
823      affects advect_cs results (for the wrong reason): update output.txt
824    o use a more standard discretization for biharmonic viscosity ;
825     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
826      affects results of dome set-up: update output.txt
827    o fix gad_advection.F (CubedSphere part), back to version 1.23
828    o fix bug in mom_vi_del2uv.F (CubedSphere part).
829    
830    checkpoint55a_post
831    o merged code to
832      * prescribe/read time-dependent open boundaries
833        (works in conjunction with exf, cal)
834      * sponge layer code for open boundaries
835      * each boundary N/S/E/W now has its own CPP option
836        (healthy for the adjoint)
837    
838    checkpoint55
839    o up-to-date adjoint of previous breaks
840      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
841      - global_ocean_ebm: adjoint still needs fix (TLM ok)
842      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
843      - carbon: * remove tr1-related adjoint verification
844                * add ptracer as control variable
845    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
846      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
847    
848    checkpoint54f_post
849    o in verification/carbin/ remove experiment related to
850      ALLOW_PASSIVE_TRACER (array tr1 etc)
851      code_ad/ input_ad/ results_ad
852    
853    o add two new packages
854      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
855        + subject to optimization (memory)
856      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
857        + subject to reordering (many GOTOs in the original code)
858        + so far opps is called for every (i,j) point, and then operates in
859          the vertical; one may want to reorder the scheme in order operate in
860          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
861          fields)
862    o overhaul of IO so that we now have flags for MDSIO and/or MNC
863      - all verification tests compile and run with linux_ia32_g77
864      - defaults are compatible with current input files--nothing
865        should change if you were not previously using MNC
866      - MNC output has been added in numerous places (eg. timeave)
867        but there are still a few writes not yet do-able with MNC
868        (this is in progress)
869      - flags now allow for either/or/both use of MDSIO and MNC and
870        documentation will soon follow
871      - numerous small formatting cleanups for ProTeX
872    o add version info (via BUILD_INFO.h) to MNC and stdout
873    
874    checkpoint54e_post
875    o add two new packages
876      - pp81 (Packanowski and Philander, 1981), Richardson number and
877        stratification dependent mixing
878      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
879      - these scheme operate in a similar manner as KPP (without ghat, of
880        course), however there is only one diffusivity that is used for both
881        temperature and salinity (and passive tracers)ç
882    o add offline package
883    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
884      provided by Stephanie Dutkiewicz
885    o genmake2: add ability to search for C compilers and cleanup test output
886      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
887    
888    checkpoint54d_post
889    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
890    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
891      leading to additional shift by 5 days each year of integration
892       (i.e. leading to considerable offset over the years)
893    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
894    o start with no AB and no initial filtering (staggerTimeStep):
895      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
896    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
897      (external loading & cpl import/export stay in forward_step.F)
898    o update coupling interface to work with new staggerTimeStep
899    o change MDSIO ptracers_pickup.
900    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
901    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
902    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
903    
904    checkpoint54c_post
905    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
906      this affects (truncation error) output.txt of test-exp:
907       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
908    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
909    o change Qnet to always be the net heat flux, (+upward).
910      affects (truncation error) output of natl_box exp.: updated
911    o define the max number of passive tracers in PTRACERS_SIZE.h
912    o start to test mnc routinely in exp0
913    o add sea-ice loading (sIceLoad) as a new forcing field.
914    
915    checkpoint54b_post
916    o add testreport "-j JOBS" option for parallel builds (tested and pretty
917       impressive on Altix and Opteron systems)
918    o diagnostics can now write NetCDF files through the mnc package
919    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
920    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
921    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
922      affects (truncation error) output of lab_sea & natl_box exp.: updated
923    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
924    
925    checkpoint54a_post
926    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
927    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
928    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
929    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
930      + internal_wave (shift in writing cg2d_ini_res)
931    checkpoint54a_pre
932    
933    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
934      - modified verification/lab_sea and natl_box_adjoint accordingly
935    
936    checkpoint54
937    checkpoint53g_post
938    o prepare splitting of thermodynamics: store convect.counter in common block
939    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
940      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
941    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
942    o new parameter "nShapS": allow to treat differently S from T (nShapT)
943    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
944    o restore adjointability
945    
946    checkpoint53f_post
947    o modifications that affect AIM experiment results (update output.txt):
948      - no advection of S at top interface Nr (pkg/generic_advdiff)
949      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
950    o AIM pkg:
951      - include stability function into surf.Flux derivative relative to Tsurf
952      - calculate clear-sky radiation & surface temp. change (for diagnostics)
953    
954    checkpoint53e_post
955    o merged cylindrical coord configuration
956    o added rotating_tank experiment
957    checkpoint53e_pre
958    
959    checkpoint53d_post
960    o faulks upgraded: re-generate output.txt that have changed:
961       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
962    o Added Bryan and Lewis, 1979, vertical diffusivity profile
963    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
964    o added Sadourny discretization of Coriolis
965      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
966      - re-enabled use of omega3 (useAbsVorticity)
967    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
968      vector-invariant equations
969      - note: does *NOT* yet use same variable visc. for no-slip BC's.
970    o recoded the lateral boundary conditions for non-hydrostatic w, this time
971      hopefully without new bugs
972      - still to do: biharmonic friction for non-hydrostatic w
973    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
974    o regenerated output for global_ocean_ebm (using -ieee)
975    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
976      of mom_common/
977      - simple re-arrangement of instructions within computing loop
978    checkpoint53d_pre
979    
980    checkpoint53c_post
981    o new version of coupler for AIM+thSIce and Ocean models
982     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
983     - land: change Evaporation of snow
984     - aim with thSIce: fix bug in snow-precip.
985    o changes to calc_gw.F
986     - bug fix for w^2 term near the bottom boundary
987     - (hopefully) improve the lateral slip boundary condtions for use with
988        partial/looped cells
989      - because the bug fix changes two verification experiments anyway (exp5
990        and plume on slope), change the lateral boundary condition from half slip
991        to the value of no_slip_sides
992    o ebm package wasnt quite up to the parallel task. Fixed that.
993    o Adjoint of EBM package + verification
994      * TLM OK
995      * ADM not sufficient accuracy yet (needs further testing)
996    
997    checkpoint53b_post
998    o Commiting new energy balance model to repository
999      * package is pkg/ebm
1000      * verif. is verification/global_ocean_ebm
1001      * references are in ebm_driver.F
1002    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1003    C        Global thermohaline circulation. Part I:
1004    C        Sensitivity to atmospheric moisture transport.
1005    C        J. Climate 12(1), 71-82
1006    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1007    C        Global thermohaline circulation. Part II:
1008    C        Sensitivity with interactive transport.
1009    C        J. Climate 12(1), 83-91
1010    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1011    C        Destabilization of the thermohaline circulation
1012    C        by atmospheric eddy transports.
1013    C        J. Climate 7(12), 1870-1882
1014    o Will need long integration testing.
1015    checkpoint53b_pre
1016    
1017    o created pkg/mom_common in preparation for variable viscosity code
1018    o renamed and split ini_mnc_io
1019    o pkg/land: only liquid water can diffuse or run-off
1020    o AIM using land: soil wetness availability account for snow
1021    o added printMapIncludesZeros to EEPARMS namelist
1022    
1023    checkpoint53a_post
1024    o restore TAMC compatiility for exf_constants.h
1025      (no usage of _d in .h)
1026    o Additional storing in KPP in an attempt to fix
1027      TAMC problem with adjoint of KPP code.
1028      (no success...)
1029      Identical code works fine with TAF.
1030    o Fixed verification/natl_box_adjoint experiments.
1031      Initial conditions for Experiments 4 and 5 are now
1032      set to "SEAICE_initialHEFF=0", which is more reasonable,
1033      and hence gives results closer to that of Experiment 2.
1034      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1035    
1036    checkpoint53
1037    o stable checkpoint with up to date adjoint
1038      TLM tests only run for 1st grdchk at the moment. Its unclear if
1039      this is a code problem or a problem with resetting code for g_
1040      variables that is being autogenerated wrong.
1041      Otherwise:
1042       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1043       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1044         are both still in chaos following their security messes.
1045    
1046    checkpoint52n_post
1047    o various build (mostly genmake2) changes including:
1048      - ability to build/run more easily within Cygwin and MacOS X
1049      - more complicated Makefiles with a stronger dependence on Gnu Make
1050    o pkg/seaice modifications
1051      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1052        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1053        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1054      - changed proxy for geostrophic velocity and updated
1055        verification/lab_sea/results/* accordingly
1056      - removed ADI dynamic solver from pkg/seaice
1057      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1058        they caused a segmentation fault under certain circumstances
1059      - removed unused field WATR
1060    o bug fix in exf-package:
1061      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1062         now reflect that.
1063    o small fixes in the cal-package:
1064      - set reference date to first of January for the 'model'-calendar
1065      - failing of cal_CheckDate in cal_FullDate now actually results in a
1066        warning
1067    o small modifications in exf-package to increase flexibility:
1068      - change climtempfreeze from a constant to a runtime parameter that
1069        is specified in data.exf_clim (default = -1.9)
1070      - introduce runtime parameter windstressmax (default = 2.0) that is
1071        specified in data.exf
1072    o fix in pkg/thsice:
1073      - update Evap (Tsf changes) to be consistent with Latent heat flux
1074      - maintain snow precipitation unchanged (even if Tsf >=0).
1075     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1076    
1077    checkpoint52m_post
1078    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1079      this does not change any of the results, because myIter=0 in swfrac always
1080      lead to jwtype=2 (the default anyway), but the call makes little sense
1081      as a default
1082    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1083    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1084      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1085    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1086    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1087    o extending useSingleCpuIO option to work with new exch2 I/O format
1088      - old-style, missing-tile I/O is still accessible by defining CPP
1089        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1090    o monitor package can write to NetCDF files and/or STDOUT
1091    o fix re-definition bug in MNC_GRID_INIT_ALL()
1092    o doc/api_reference added
1093      - a framework for building an API Reference Manual using all
1094        the "protex" comments embedded in the code
1095      - see pkg/generic_advdiff, pkg/mnc for examples
1096    o MNC:
1097      - make myThid the last argument for all subroutines
1098      - new default for the grid files: NO halos
1099      - add useMNC and other run-time flags
1100      - separate per-file-group handling of the unlimited dimension
1101      - early initialization of MNC w/ flags read at the eeboot stage
1102        and lookup tables set in initialize_fixed
1103      - write all MNC output to a freshly-created directory
1104  o thermodynamics sea-ice (thsice) is now tested with testreport.  o thermodynamics sea-ice (thsice) is now tested with testreport.
1105  o test exp. advect_cs: use the standard cs32 grid ; update output.  o test exp. advect_cs: use the standard cs32 grid ; update output.
1106    o Added functionality to grdchk:
1107      pick global i,j,k position (or nearest wet) where to perform check.
1108    
1109  checkpoint52l_post  checkpoint52l_post
1110  o new land formulation:  o new land formulation:

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