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revision 1.125 by jmc, Mon Jan 27 21:42:19 2003 UTC revision 1.616 by heimbach, Thu Mar 2 02:56:54 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 Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
8      and trend from exf forcing and ctrl control adjustments
9    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
10      (since checkpoint57x_post)
11    o change the default rotation period to 86164.s = the Earth rotation
12    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
13      and based on a reference stratification. Tested within hs94.cs-32x32x5.
14    o seaice advection: add code for choosing between the default (2nd order
15      central differences) and multiDim advection schemes provided by
16      pkg/generic_advdiff
17    o seaice:
18      - removed all references to SEAICE_GRID.h fields from
19        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
20        (cubed-sphere configuration will change a little)
21      - grid computations in seaice_init are obsolete now.
22      - cleaned up code a little so that is easier to read (hopefully).
23      - added new (better?) discretizations of default advection and diffusion
24        (turn on with SEAICEuseFluxForm)
25      - replace 1 in 3d global fields by kSurface in growth.F
26      
27    checkpoint58a_post
28    o seaice:
29      - bug fix in advect.F
30    o shelfice:
31      - separate shelfice load anomaly from pload (breaks with time
32        dependent forcing), => introduce constant field shelficeLoadAnomaly.
33        Its default is 0., but it may be computed more cleverly from (unknown)
34        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
35        done offline. A good approximation of the pressure load anomaly is
36        necessary to avoid large initial adjustment processes underneath
37        deep-reaching shelfice.
38      - small fix in ISOMIP shelfice_thermodynamics
39      - add more sophisticated thermodynamics of Hellmer (1989), this is
40        now the default
41      - give a few constants more intuitive names
42    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
43      if bulk formulae are used in long integration (especially EmPmR). Turn
44      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
45      if balancePrintMean, the imbalance that is substracted is printed to
46      STDOUT.
47    o fix bug (typo) in obcs_apply_eta.F
48    o add a new package shelfice which enables us to model the circulation
49      underneath shelf-ice with draughts of hundreds of meters.
50     - works
51     - to do: + include improved thermodynamics
52              + check whether kSurfC (from model/inc/SURFACE.h) can be used
53                instead of new field kTopC
54              + can we use topoFile, Ro_surf and existing code in ini_depth.F
55                instead of new field R_shelfIce and new code in ini_depth.F
56                and ini_mask_etc.F?
57              + adjust vertical mixing schemes?
58    o seaice pkg:
59     - add a cpp-flag to include a simple formula for a salinity dependent
60       freezing point of sea water at the surface
61     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
62       meridional stresses are now different (and hopefully correct)
63    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
64       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
65       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
66    o pkg/diagnostics: add options and parameters for regional-statistics
67       diagnostics ; define regions by reading a region-mask from a file
68       (might add other options later)
69    o pkg/bulk_force:
70     - add option and parameters to use AIM surface-flux formulae.
71     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
72       others forcing fields (defined in PARM05, parameter file "data") are loaded
73       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
74     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
75     - use the right EXCH call for uwind,vwind (to work on CS-grid).
76     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
77       and parameters (note: calcWindStress replaces .NOT.readwindstress).
78     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
79    
80    checkpoint58
81    o add "--embed-source" option to genmake2 which, when the supporting
82      tools can be compiled (as determined by genmake2) will turn on the
83      embed_files package which then embeds the entire MITgcm source code
84      (*.[fFhc] + Makefile) used for the build within the executable
85      - requested by CNH but off by default
86      - adds a paltry <9MB to the mitgcmuv executable in most cases
87      - only writes the output when useEMBEDSRC in eedata is true
88    o clean up 3-dim. relaxation codes:
89      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
90      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
91      * Thanks to Tom Haine for testing!
92    
93    checkpoint57z_post
94    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
95      affects output (@ truncation level) of exp. plume_on_slope ; updated.
96    o fix the pickup behavior for obcs in combination with ptracers
97    o fix a bug in ptracers_external_fields_load
98    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
99      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
100    o transfered surface NH pressure to eta field (if exactConserv).
101    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
102         and update lab_sea output.txt file.
103    o completing 3-dim. relaxation code: additional term
104         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
105      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
106      * At compile time, in "EXF_OPTIONS.h" set
107          #define  ALLOW_CLIMTEMP_RELAXATION
108          #define  ALLOW_CLIMSALT_RELAXATION
109      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
110          tauThetaClimRelax3Dim = 15552000.0,
111          tauSaltClimRelax3Dim  = 15552000.0,
112      * 3 cases:
113          1) Use a constant-in-time 3-dim. field
114          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
115          3) Real-time relax. to time-evolving prescribed field
116    o Adding Laplacian-type smoothness constraint on
117      initial and boundary (forcing) controls (ic, bc)
118      * enable at compile-time via
119        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
120      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
121      * Absolute scale somewhat unclear so far
122      * no area weighting was included since no other cost term does so far
123    
124    checkpoint57y_post
125    First step for a NLFS adjoint
126    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
127    o new init. routines for calc_r_star, calc_surf_dr
128    o still need to deal with ini_masks_etc
129    o testreport seemed happy
130    checkpoint57y_pre
131    
132    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
133    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
134    o add new offset feature to offline pkg (plus minor cleanup)
135    o cfc fixes for final year of integration
136    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
137      be in GCHEM_OPTIONS).
138    
139    checkpoint57x_post
140    o fix testreport Pb in multiple test experiment.
141    o cleanup our namelist syntax in verification:
142      - make it more F95 standards compliant (some work still needed)
143      - allows the vast majority of our tests to work with gfortran
144    o Non-Hydrostatic:
145     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
146     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
147    o Allow to apply AB on T,S rather than on AB(gT,gS):
148     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
149     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
150       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
151     - need a "clever" read_pickup to restart from the other AB formulation
152    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
153    o remove some unused variables (reduces number of compiler warnings)
154    o adjoint
155      * Disable useVariableViscosity for adjoint for time being
156        (there are a number of extensive recomputations)
157      * Initialize certain variables needed for adjoint
158    
159    checkpoint57w_post
160    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
161                 fix the singleCpuIO RS version of MDSWRITEFIELD
162       and add a WARNING if using globalFiles=T with multi-processors.
163    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
164      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
165    o tracer advection scheme:
166      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
167       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
168       was not very convenient).
169      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
170       (further tests needed for the implicit DST & Flux-Limiter schemes).
171    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
172      and sRef for convenience, handy, when you want to initialize
173      ptracers in a large domain with a constant non-zero value. Also,
174      untangle ptracers_init.F a little.
175    
176    checkpoint57v_post
177    o change dome exp. to use variable viscosity in side-drag terms.
178    o remove all the files from the cfc_offline test since they are now
179      incorporated into tutorial_cfc_offline which has been producing
180      identical results for a few days of testing
181    o add new parameter: sideDragFactor to enable half-slip-side BC
182      and change side-drag S/R to use viscosity from mom_calc_visc
183      (can switch back by setting sideDragFactor=0.); affects results at
184      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
185       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
186    o vorticity & strain are now computed without masking, to account for
187      no-slip-side BC in variable viscosity calculation ; mask is applied
188      anyway later on, before computing advection/coriolis terms.
189    o modify exp4 to test new obcs support for reading from external files
190      and for passive tracers
191    o fix behavior of ptracers_monitor when monitor output is written to a
192      netcdf-file; still not independent of monitor.F (writes in the same
193      file).
194    o change default value of tRef (put a uniform, meaningful value for ocean
195      & atmos) and initialize sRef (was missing, as Martin mentioned).
196    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
197      to be proportional to enstrophy dissipation length.  Thus,
198       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
199      This is now consistent with Smagorinsky and with the manual.
200    
201    checkpoint57u_post
202    o OBCS and PTRACERS: add open boundary support for passive tracers
203      - either use homogenous (pseudo) v.Neumann conditions or prescribe
204        OB-values from file; this is not different from the way theta and salinity
205        are treated
206      - however, Orlanski-radiation conditions are not supported, and the model
207        will stop if you use pTracers and Orlanski at the same time.
208      - beefed up the rountine obcs_external_fields_load: now only those open
209        boundary values are overwritten with values from files for which there
210        are really files, otherwise the OB-fields remain untouched. This makes
211        it possible to use different OBs at different ends of the domain (as
212        with EXF)
213    o reduce number of exch calls in shap_filt (s2).
214    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
215      truncation level) 4/5 MLAdjust test results (11&12 digits match).
216    
217    checkpoint57t_post
218    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
219    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
220      same truncation, independent of the face number: affects affects several
221      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
222    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
223      note that biharmonic viscosity + no-slip was not tested in any experiment.
224    o fix bug in non-linear free-surf side-drag ; generate new output for
225      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
226    o make mnc honor the writeBinaryPrec flag for most kinds of output
227    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
228    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
229      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
230    o add brackets in multi-terms sum to get same truncation, independent of
231      the face number (manage to get exactly same value of gU,gV at the cs-edge)
232      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
233    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
234      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
235      a maximum grid-scale Reynolds number.  Also, changes all length calculations
236      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
237      Suggested values of viscosity parameters found in mom_calc_visc.
238      Many new viscosity diagnostics available.
239    
240    checkpoint57s_post
241    o Add clearing-house for viscosity calculations, mom_calc_visc and
242      correct numerous bugs in LeithD and Smagorinsky discretizations.  
243      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
244      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
245      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
246      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
247      The Strain-Tension form is now called with useStrainTensonVisc=.true.
248      ViscAhStrain and viscAhTension are now retired.
249    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
250    o In response to JMC's bug report, genmake2 now ignores any soft-links
251      that it finds in the *current* directory when searching for files.
252      Soft-links found in any other source directories will still work as
253      they did before.
254    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
255      a C routine to unlimit the stack size
256    o mnc-ify pkg/aim snapshot vars
257    o mnc-ify pkg/land as requested by Daniel
258    o various changes to mnc including:
259      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
260      - output can now be grouped so that all files within a group
261          change the ITER portion of their names in lock-step together
262      - can now read ("global") PER-FACE (in addition to PER-TILE) files
263          and works with both EXCH1 and EXCH2 (but needs more testing)
264      - writing works for all verification test cases w/ g77 on Linux
265    
266    checkpoint57r_post
267    o make MNC variable initialization happen earlier
268    o add diagnostics for (almost) each term of the momentum Eq.
269    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
270    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
271    o remove MINIMAL_TAVE_OUTPUT option ;
272      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
273    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
274      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
275    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
276    o add time-dependent SST, SSS control
277    o cost terms in ecco/ modularized (new cost_generic.F)
278    o cost_averages routines are modularized (new cost_averagesgeneric.F)
279    o new infrastructure for seaice model vs. obs misfits in seaice/
280      * driver from the_main_loop.F is seaice_cost_driver.F
281      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
282      * gradient check in Exp. 6a of natl_box_adjoint/
283    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
284      (see README file)
285    
286    checkpoint57q_post
287    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
288    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
289      - bug was reported by Jean-Michel and Ian Fenty
290    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
291      update exp. cpl_aim+ocn output.
292    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
293      Needed for high-res. runs with large global files
294      to be able to limit tapelev size
295    o Changed some tests for adjoint:
296      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
297      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
298      * global_ocean.90x40x15/ back to default 3-level checkpointing
299    o Modifications to enable scripted COMMON to MODULE conversion
300      * verification/OpenAD/code/ has necessary scripts and description;
301      * converts, compiles and runs successfully;
302    
303    checkpoint57p_post
304    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
305    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
306      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
307    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
308    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
309      (was already the case for dissipation with mom_vecinv,
310       and also the case for grad.PhiHyd when staggered-timeStep)
311      This will allow to put dissipation out-off the AB time-stepping.
312     Unfortunately, affects truncation error. Update output of exp. that "fails"
313      (cg2d matching number) and leave the others for later: front_relax(10),
314      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
315      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
316    
317    checkpoint57o_post
318    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
319      (2) its ready to be documented during the 20050801 DocFest
320    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
321      for ideal_2D_oce and lab_sea on linux_ia32_g77
322    o set to #undef CTRL_SET_OLD_MAXCVARS_30
323      in global1x1_tot/code_seaice_adj to access indices 32, 33
324      (worth another tag)
325    
326    checkpoint57n_post
327    o adding precip control xx_precip 32
328    o adding swflux control xx_swflux 33
329    o Replacing 10 forcing penalty cost routines by 1 generic.
330    o Implementing partitioning in time-mean and variable adjustment
331      for atmos. state.
332    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
333    o in natl_box_adjoint:
334      * updated exp 1 to 10
335        (but does not have time-mean vs. variable split results yet)
336    o updated global1x1/*_seaice_adj/
337      to incorporate latest changes
338    o enable useSingleCpuIO for mdsio vector routines
339      (applies in particular to tapelev I/O)
340    o removed inefficient K-loop in all active_file*control*.F
341    
342    checkpoint57m_post
343    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
344      and advect_cs (use EXCH-2 and standard cs-32 grid files).
345    o pkg/exch2: filling of face-corner halo regions is optional
346      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
347    
348    checkpoint57l_post
349     tag before updating tutorials (pre-release-2)
350    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
351       for output and interpolation of input fields onto model grid)
352    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
353       Affects results of exp. rotating_tank ; update output.txt.
354    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
355          and taking the square quantity and/or using a fraction-weight field.
356    o fix aim_diagnostics_init.F mate numbers.
357    o add mnc output capability to diagnostics/diagstat and update
358      our cvsignore files for the ACSII output generated
359    
360    checkpoint57k_post
361    o lab_sea now uses diagnostics package and provides a suite of
362      new EXF diagnostics output.
363    
364    checkpoint57j_post
365    o exf
366      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
367        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
368        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
369      * extended diagnostics output
370        - now includes all EXF variables
371        - hs, hl moved to common block
372        - separate S/R for diagnostics, called after ctrl vector is added
373        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
374        - EXFqnet contains true Qnet (i.e. includes qsw)
375      * updated verif. lab_sea, global_with_exf
376      * Rearranging hflux (exf_mapfields -> exf_getforcing)
377        to ensure that diagnostics sees a true EXFqnet
378    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
379    o diagnostics pkg: change pointers so that 1 diagnostic can be used
380      several times with different frequencies.
381    o mnc-ify the thsice package as requested by Daniel Enderton
382      - the monitor--MNC output needs work
383      - many attributes need to be added (most are currently blank)
384    o mnc-ify theaim_v23 package as requested by Daniel Enderton
385      - many attributes need to be added (most are currently blank)
386    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
387    o add Sadourny like discretization to the 4th.O vorticity advection scheme
388    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
389      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
390         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
391    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
392     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
393    
394    checkpoint57i_post
395    o Diagnostics package was changed: diagnostic allocation is now deactivated
396      by setting an empty file name in the namelist (used to be by setting 0 frequency)
397    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
398      add 1rst Order upwind vertical Shear.
399    o add a quick fix for A/B checkpointing in OFFLINE mode
400    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
401      end-run around the C/Fortran linking horror in eesup/src/timers.F
402    o added pkg/runclock: allows user to terminate run based on wall clock
403    o added non-hydrostatic scaling parameter: nh_am2
404    o pkg/my82: futile attempt to make results compiler-independent by adding
405      some "_d 0", etc. no effect.
406    o for mnc output, fill the 'T' coordinate var with myTime and create a
407      separate 'iter' variable for iteration count
408    o pkg/diagnostics:
409      add new capability: output of Global/Regional & per-level statistics ;
410      tested against monitor output (including land & thSIce) on various exp.
411    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
412    
413    checkpoint57h_done
414      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
415      data.diagnostics, data.gchem, data.ptracers) is done.
416    
417    o pkg/diagnostics: prepare for Global/Regional statistics.
418      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
419    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
420      and rename it: DIFFERENT_MULTIPLE
421    
422    checkpoint57h_post
423    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
424    o pkg/diagnostics: change output frequency, now in seconds (instead
425      of Nb of iterations). This requires to change data.diagnostics.
426    checkpoint57h_pre
427    
428    o in mnc, let the user create the output dir if both mnc_outdir_date
429      and mnc_outdir_num are false
430    o add fflags() to pkg/diagnostics which allows one to specify, on a
431      per-file basis, the file precision [default behavior is unchanged]
432    o added diagnostics to pkg/kpp, including computation of mixed layer
433      depth based on a temperature/density criterion
434    o updated verification/natl_box to test the new pkg/kpp diagnostics
435    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
436    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
437    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
438      not mnc -- this mistake was found by JMC and is now corrected
439    
440    checkpoint57g_post
441    o add Adams-Bashforth 3rd Order time stepping:
442      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
443      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
444    checkpoint57g_pre
445    
446    o make lambda[Theta,Salt]ClimRelax spatially varying
447      (default remains spatially uniform constant based on tau)
448    o added new control variables
449      * init. uVel, vVel, etanN
450      * lambda[Theta,Salt]ClimRelax
451    o separate masks used for ctrl_pack/unpack 'from write_grid' output
452      (suggested by G. Forget)
453    
454    checkpoint57f_post
455    o add parameter "baseTime" = model base time = time at iteration zero
456      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
457      account for baseTime shift
458    o move Coriolis arrays from PARAMS.h to GRID.h
459    checkpoint57f_pre
460    
461    o mnc-ifying the seaice package
462    o introduced an alternative length scale calculation for use in the limiting
463      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
464    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
465    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
466      as well as grad(vort3).  Made it compatible with both approximate form
467      for the cubed sphere and full form of these gradients.  Added flag
468      useFullLeith to select between approximate and full form.  
469    o add "d0" in getcon.F to reduce differences between compilers/platforms
470      update output.txt of exp. fizhi-gridalt-hs
471    o change port_rand funtion to allow to set the seed.
472    o fix obscure MNC bug involving conversion between reals and integers
473      - it caused no problems with certain (eg. gcc, ifc) compilers but the
474        new version is now more standards-compliant
475    o adjoint-related modifications
476      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
477      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
478      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
479    
480    checkpoint57e_post
481    o Adding eddy stress controls a la Ferreira et al.
482    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
483    
484    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
485      update output.txt of exp. fizhi-gridalt-hs
486    o add more "Z" dimensions and associated coordinate vars to MNC
487    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
488    o parameter calendarDumps: when set, approximate months (30-31 days) and years
489      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
490      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
491      months and years.  Requires pkg/cal.
492    o diagnostics: add pickup functionality
493      - off by default for backwards compatibility
494      - current version only uses MDSIO -- MNC will be added
495    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
496    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
497    
498    checkpoint57d_post
499    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
500    o modify verification/ideal_2D_oce so that it tests the creation of mnc
501      output from the diagnostics package
502    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
503    o make genmake2 more portable by using ".$FS" instead of ".f" for more
504      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
505    o add coordinate variables to the MNC output from the diagnostics package
506    o change MNC-flags default value: true when useMNC=TRUE
507    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
508      the ability (off by default) to read the grid information using MNC
509    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
510    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
511    o do snap-shot diagnostics at the middle of the time-interval (instead of
512      at the end).
513    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
514      new test for AIM with thSIce + slab-ocean
515    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
516    o move state variable diagnostics to the beginning of the time step ;
517      (note: still needs some work specially for snap-shot diagnostics)
518      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
519    
520    checkpoint57c_post
521    o Change testing option (-ieee) to get closer agreement between g77 & ifort
522    o generate new output.txt files on faulks with g77 & the new -ieee option
523    checkpoint57c_pre
524    
525    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
526      update output.txt of exp. global_ocean.90x40x15
527    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
528      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
529    o add saltFlux(+File) forcing capability with periodicExternalForcing
530    o allow to use pkg diagnostics for GM-Redi & ThSIce output
531    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
532    o improvements for the MNC output from DIAGNOSTICS:
533      - correct handling of the unlimitied dimension
534      - all dims now have associated coordinate variables
535      - variables located at U, V, and Corner ("Z") points are now written
536        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
537        *all* data points are output
538    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
539    o added pkg/seaice/seaice_monitor.F
540    o mdsio_readfield.F can now read files visible only to master MPI process.
541    o pkg/seaice: some test code for ice-modified ocean stress
542    o exf_getffields interpolation defaults to bilinear for all scalar forcing
543      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
544      spurious negative numbers for precipitation and humidity.  Will cause
545      some small numerical differences for integrations using pkg/exf/exf_interp.F.
546    o pkg/ctrl/
547      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
548        May be enabled via doPackDiag
549      *  introduce z-scaling of
550         + gradient (doZscalePack) and
551         + control (doZscaleUnpack)
552    o pkg/mdsio/
553      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
554      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
555    
556    checkpoint57b_post
557    o simplify options in diagnostics_fill arguments (remove weird combinations)
558    o fix MNC coordinate variables so that they now contain per-face index
559      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
560      general, EXCH2 grids are only aligned to a "local" coordinate system
561    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
562    o Implement instantaneous output within pkg diagnostics:
563      setting a negative frequency in data.diagnostics produces
564     "snap-shot" output (as opposed to time-average if freq > 0)
565    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
566      NOTE: change ptracer diagnostics name: use 2 characters to work with
567            more than 9 tracers. Add also diagnostics of advect & diffus flux.
568    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
569      becomes the coordinate variable for the 'T' dimension
570    o add CF-style coordinate variables to MNC
571      - just a first cut:  numbers are meaningless on the cubesphere and
572        missing along the T axis but otherwise it works!
573    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
574    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
575    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
576      this is based directly on what the model compute, so that the content of
577      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
578    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
579    o clean up build options files for SunOS, in particular
580      - remove -traditional from xmakedepend
581      - change -xarch=v9 to -xarch=native for f77
582      - restore use of make (not gmake)
583      - add CC=gcc if using g77
584    o changes per discussion of AM, JMC, & EH3 today:
585      - move redundant "grid" variables out of "state" -- in preparation of
586        creating proper CF-style coordinate variables and in recognition
587        that any/all grid variables can be easily copied (eg. w/NCO) from
588        the grid files into any of the other NetCDF files
589      - *always* output grid variables with MDSIO (this will eventually be
590        changed)
591      - output MNC grid file if useMNC is true
592    o every instance of _END_MASTER() has been found and replaced with
593      _END_MASTER( myThid ) in order to satisfy certain picky Sun
594      preprocessors
595    o re-arrange diagnostics pkg initialisation:
596     - allow each package to extend the available diagnostics list
597     - add some checking and fix small problems (multi-threaded, ...)
598     - new S/R diagnostics_fill (replace fill_diagnostics):
599       look through the short list of active diag. (instead of the long list)
600       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
601    
602    checkpoint57a_post
603    o this set of changes restores TAMC compatibility
604      tested for global_ocean.90x40x15 adjoint on trough
605      (what a pain)
606    
607    checkpoint57a_pre
608    o some modifs in tools/build_options for sunos
609    o call ctrl_pack for ctrl at end for optimcycle=0
610    
611    checkpoint57
612    o add horizontal bi-harmonic viscosity for vertical velocity
613      - new parameter viscA4W (defaults to viscA4)
614      - affects only non-hydrostatic code
615      - to be done: no-slip lateral boundary conditions
616    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
617    o implement Implicit Vertical advection for pTracers
618    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
619      (implemented also for implicit vertical diffusion & advection)
620    o OBCS: extend application of tracer open boundary conditions
621      to a strip beyond the boundary of width Olx/Oly
622    o add call monitor to TAF set of required calls (flow directives)
623      and include in natl_box_adjoint
624    o untangle a few ifdefs related to cost, ctrl, autodiff
625      untangel a few ALLOW_ECCO_OPTIMIZATION
626    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
627      (theta2, salt2 in ecco_cost_weights)
628    
629    checkpoint56c_post
630    o OBCS as control variables
631      - update ctrl_ad_diff.list, obcs_ad_diff.list
632      - remove balance of obcs controls from default
633      - fix index bug nobcs in ctrl_init
634      - fix dummy fields filen in ctrl_pack
635      - add dummy weights for obcs
636    o lsopt: comment out fort.94 output
637    o optim:
638      - remove unnecessary header files
639      - adjusted namelists
640      - add xerbla.F to Makefile
641    o exf:
642      - multiple modifications of exf_check_range
643      - unit change in exf_init_runoff from [m/year] to [m/s]
644    o mdsio:
645      - i/o-vector change debugLevel from debLevA to debLevB
646    
647    checkpoint56b_post
648    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
649      is called from DO_THE_MODEL_IO
650      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
651      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
652      - clean up PTRACERS_WRITE_TIMEAVE a little
653    o add another verification experiment that tests both the cfc-pkg and
654      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
655      reactive tendencies treated inline with regular timestepping
656    o testreport previously did a lousy job of comparing small numbers, so
657      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
658      implemented in the little c-progam tmp_cmpnum.c which is embedded in
659      testreport.
660    o ptracers_monitor: bug fix for MPI
661    
662    checkpoint56a_post
663    o GCHEM: finish reorganizating the package
664      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
665        (introduces another 3D-array for each passive tracer, but only if
666        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
667        gchemTendency is not needed because the timestep is done separately)
668      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
669      - GCHEM is now---more or less cleanly---separate from PTRACERS
670      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
671        so clear to me how that should be done in a general way.
672    o CFC: improve formatting of output in CFC_ATMOS
673    o PTRACERS:
674      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
675        that ALL experiments with ptracers enable can be checked. This makes
676        GCHEM_MONITOR obsolete.
677      - include a runtime parameter PTRACERS_monitorFreq that defaults to
678        monitorFreq
679      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
680    o add PTRACERS (PTR0[1-5]) to testreport output
681    o exf_check_range:
682      * default changed to .TRUE.
683      * will check values for niter0 if debLevA, every timestep if debLevB
684      * STOP in exf_check_range if 'out of range'
685      * range chosen generous to allow for potential extema
686      TBD: a version with stricter range
687           permitted range would be runtime parameters
688    o GMredi:
689      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
690      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
691      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
692    o GCHEM:
693      - move call to GCHEM_FORCING_SEP, so that it is now called before
694        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
695      - introduced a useGCHEM runtime flag and applied it everywhere.
696      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
697        this flag is now only visible within GCHEM-pkg routines.
698      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
699        be replaced by a 3D array that is computed before thermodynamics; for
700        this, the tracer ID iTracer had to be included into the parameter list
701        of ptracers_forcing
702      - set up forward_step to call gchem_forcing, that will replace
703        gchem_forcing_int in ptracers_forcing
704      - cleaning up
705    o small cleaning of exch2: remove files that are also in eesupp/src
706    
707    checkpoint56
708    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
709    o mnc: cleanup "full" files--fixes out-of-memory problem
710    o ECCO-GODAE
711      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
712      * fully merged and updated from SIO code
713        windstress sign change affects
714        - exf_inscal_[u/v]stress
715        - sign of xx_tau[u/v] adjustments
716        - signs in cost_scat
717      * ctrl_get_gen: avoid update of tau[u/v] for first few days
718      * natl_box_adjoint updated and compressed
719      * 2-level checkpoint switch added
720        (tested in EXP. 1 of natl_box_adjoint)
721      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
722    o SVD
723      * first complete, non-hacked version for SVD calculations
724      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
725        performed via direct access files admtlm_vector.it????
726        (via ctrl_[un]pack)
727      * optimcycle is used for ARPACK iteration counter
728        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
729      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
730        and add linear transforms where necessary
731      * controls are initial/final SST, SSS (can be extended; need to check
732        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
733    o mdsio: filename info to both stderr, stdout
734    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
735      from sign change
736    
737    checkpoint55j_post
738    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
739      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
740    o add consistent build directories and .cvsignore files to verification
741    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
742    o make all subroutines 30 or less characters in length for certain older
743      compilers to work (a thorough search only turns up two routines in
744      pkg/ptracers)
745    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
746      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
747    
748    checkpoint55i_post
749    o change arrays for total vertical diffusivity (2.D if explicit,
750      3.D if implicit) ; each ptracer uses its own background value.
751    o added mnc/NetCDF output capability to ocn_compon_interf
752      - added bits to verification/cpl_aim+ocn so that it can run on
753        ITRDA and other clusters without the mpirun "-wd" option
754    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
755      configuration
756    o give MNC the ability to create additional files rather than
757      exceeding a specified file size limit "MNC_MAX_FILESIZE"
758      - the default is just less than 2GB which is a practical limit
759        on many systems
760    o Compute the non-local term using either KPP vertical diffusivity (=default)
761       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
762    
763    checkpoint55h_post
764    o add verification test "vermix"
765    o remove all the *_ioinc flags and replace with the single global
766      outputTypesInclusive flag
767    o allow to set a vertical profile of vertical diffusivity for T & S
768    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
769    o useMNC moved from data.mnc to data.pkg
770    
771    checkpoint55g_post
772    o Renaming carbon AD experiments to comply with testreport conventions
773    o Updating adjoint of Held-Suarez hs94.1x64x5
774    o Fixing directives for non-ECCO forward_step, after ECCO directives
775      have been fixed to avoid recomp. of do_oceanic_phys
776      Works well for global_ocean.90x40x15,
777      but recomp. issue remains for carbon
778    o Updating adjoint output for natl_box_adjoint after
779      pkg/ecco has been modified (see taga c55d_post)
780    
781    checkpoint55f_post
782    o rename to timeave_init_fixed
783    
784    checkpoint55e_post
785    o some delicate re-shuffle of store directives to avoid one
786      extra call of do_oceanic_physics
787      affects ecco_the_main_loop.F, do_oceanic_physics.F
788      checkpoint_lev1_directives.h
789    o NB: this may break global_ocean adjoint temporarily,
790      but it is clear how to fix it. Will do later, need this now.
791    
792    checkpoint55d_post
793    o ECCO specific cost function terms (up-to-date with 1x1 runs)
794    o ecco_cost_weights is modified to 1x1 runs
795    o modifs to allow observations to be read in as
796      single file or yearly files
797    o enable to read exf forcing fields as either
798      single file or yearly files (flag useExfYearlyFields)
799    checkpoint55d_pre
800    
801    o switch between 2-level and 3-level checkpointing
802    o add ability of MNC to write local and "partial" (eg. 2D slices where
803      the full 3D field is never actually stored) arrays to NetCDF files
804      with the correct (that is, the complete multi-dimensional) set of
805      array indicies
806      - used in mom_vecinv() to write the diagFreq output
807      - tested (demonstrated) in verification/aim.5l_cs
808    o further mnc-ification
809      - add verification/lab_sea to the list with mnc setups
810      - fix undefined mnc v-names in cd_code
811      - add kpp to mnc output (both snapshot and timeave)
812    o non-hydrostatic code
813      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
814        in calc_gw.F
815      - defaults to viscAh
816      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
817        friction or Leith) in non-hydrostatic mode, as long as there is
818        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
819    o pkg/cost
820      extend simple cost functions to treat time mean quantities
821      (T,U,V) via cost_accumulate_state from cost_tile
822    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
823        be 2 times larger than the minimum size the advection scheme requires.
824        now get a perfect conservation of salt in advect_cs test-exp (updated)
825    o GGL90 (Gaspar's TKE mixed layer)
826      - add horizontal diffusion of TKE, requires exchanges in
827        do_fields_blocking_exchanges, horizontal diffusivity is zero by
828        default. In OPA there is no horizontal diffusion of TKE but the
829        mixing coefficients are computed from a horizontal average of TKE of
830        6 points or so. I think that diffusion has a little more physical
831        justification.
832      - clean up ggl90_calc in the hope of reducing memory usage (this hope
833        was in vain)
834      - mask tke-variable in ggl90_init
835    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
836    o fix biharmonic diffusion on CS-grid.
837    o more obcs stuff
838      - added obcs_external_fields_load as an alternative to the EXF-pkg option
839        for reading boundary values. This routine is called from
840        obcs_prescribe_read
841      - updated obcs_check
842      - changed sponge layer relaxation parameter units for days to seconds
843      - turned off sponge layer by default
844      - changed argument list of OBCS_CALC to myTime+deltaTclock
845      - fixed about 35 bugs in obcs_external_fields_load
846    
847    checkpoint55c_post
848    o obcs stuff
849      - new runtime flags useOBCSprescribe, useOBCSbalance
850      - re-arranged obcs_calc
851      - moved exf_getobcs to obcs_prescibe_read
852        obcs_prescibe_read is called after ORLANSKI stuff
853        and independent of it (executable can contain all).
854      - updated obcs_check
855      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
856        These may be necessary only if tangential velocities are
857        prescribed at OB, not sure, needs testing.
858    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
859      which simplifies the calls and passes the ifc check-bounds test
860    
861    checkpoint55b_post
862    o add a 2D scalar, Z location, exchange_2 routine.
863    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
864      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
865      affects advect_cs results (for the wrong reason): update output.txt
866    o use a more standard discretization for biharmonic viscosity ;
867     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
868      affects results of dome set-up: update output.txt
869    o fix gad_advection.F (CubedSphere part), back to version 1.23
870    o fix bug in mom_vi_del2uv.F (CubedSphere part).
871    
872    checkpoint55a_post
873    o merged code to
874      * prescribe/read time-dependent open boundaries
875        (works in conjunction with exf, cal)
876      * sponge layer code for open boundaries
877      * each boundary N/S/E/W now has its own CPP option
878        (healthy for the adjoint)
879    
880    checkpoint55
881    o up-to-date adjoint of previous breaks
882      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
883      - global_ocean_ebm: adjoint still needs fix (TLM ok)
884      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
885      - carbon: * remove tr1-related adjoint verification
886                * add ptracer as control variable
887    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
888      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
889    
890    checkpoint54f_post
891    o in verification/carbin/ remove experiment related to
892      ALLOW_PASSIVE_TRACER (array tr1 etc)
893      code_ad/ input_ad/ results_ad
894    
895    o add two new packages
896      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
897        + subject to optimization (memory)
898      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
899        + subject to reordering (many GOTOs in the original code)
900        + so far opps is called for every (i,j) point, and then operates in
901          the vertical; one may want to reorder the scheme in order operate in
902          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
903          fields)
904    o overhaul of IO so that we now have flags for MDSIO and/or MNC
905      - all verification tests compile and run with linux_ia32_g77
906      - defaults are compatible with current input files--nothing
907        should change if you were not previously using MNC
908      - MNC output has been added in numerous places (eg. timeave)
909        but there are still a few writes not yet do-able with MNC
910        (this is in progress)
911      - flags now allow for either/or/both use of MDSIO and MNC and
912        documentation will soon follow
913      - numerous small formatting cleanups for ProTeX
914    o add version info (via BUILD_INFO.h) to MNC and stdout
915    
916    checkpoint54e_post
917    o add two new packages
918      - pp81 (Packanowski and Philander, 1981), Richardson number and
919        stratification dependent mixing
920      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
921      - these scheme operate in a similar manner as KPP (without ghat, of
922        course), however there is only one diffusivity that is used for both
923        temperature and salinity (and passive tracers)ç
924    o add offline package
925    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
926      provided by Stephanie Dutkiewicz
927    o genmake2: add ability to search for C compilers and cleanup test output
928      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
929    
930    checkpoint54d_post
931    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
932    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
933      leading to additional shift by 5 days each year of integration
934       (i.e. leading to considerable offset over the years)
935    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
936    o start with no AB and no initial filtering (staggerTimeStep):
937      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
938    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
939      (external loading & cpl import/export stay in forward_step.F)
940    o update coupling interface to work with new staggerTimeStep
941    o change MDSIO ptracers_pickup.
942    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
943    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
944    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
945    
946    checkpoint54c_post
947    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
948      this affects (truncation error) output.txt of test-exp:
949       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
950    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
951    o change Qnet to always be the net heat flux, (+upward).
952      affects (truncation error) output of natl_box exp.: updated
953    o define the max number of passive tracers in PTRACERS_SIZE.h
954    o start to test mnc routinely in exp0
955    o add sea-ice loading (sIceLoad) as a new forcing field.
956    
957    checkpoint54b_post
958    o add testreport "-j JOBS" option for parallel builds (tested and pretty
959       impressive on Altix and Opteron systems)
960    o diagnostics can now write NetCDF files through the mnc package
961    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
962    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
963    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
964      affects (truncation error) output of lab_sea & natl_box exp.: updated
965    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
966    
967    checkpoint54a_post
968    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
969    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
970    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
971    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
972      + internal_wave (shift in writing cg2d_ini_res)
973    checkpoint54a_pre
974    
975    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
976      - modified verification/lab_sea and natl_box_adjoint accordingly
977    
978    checkpoint54
979    checkpoint53g_post
980    o prepare splitting of thermodynamics: store convect.counter in common block
981    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
982      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
983    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
984    o new parameter "nShapS": allow to treat differently S from T (nShapT)
985    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
986    o restore adjointability
987    
988    checkpoint53f_post
989    o modifications that affect AIM experiment results (update output.txt):
990      - no advection of S at top interface Nr (pkg/generic_advdiff)
991      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
992    o AIM pkg:
993      - include stability function into surf.Flux derivative relative to Tsurf
994      - calculate clear-sky radiation & surface temp. change (for diagnostics)
995    
996    checkpoint53e_post
997    o merged cylindrical coord configuration
998    o added rotating_tank experiment
999    checkpoint53e_pre
1000    
1001    checkpoint53d_post
1002    o faulks upgraded: re-generate output.txt that have changed:
1003       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1004    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1005    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1006    o added Sadourny discretization of Coriolis
1007      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1008      - re-enabled use of omega3 (useAbsVorticity)
1009    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1010      vector-invariant equations
1011      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1012    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1013      hopefully without new bugs
1014      - still to do: biharmonic friction for non-hydrostatic w
1015    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1016    o regenerated output for global_ocean_ebm (using -ieee)
1017    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1018      of mom_common/
1019      - simple re-arrangement of instructions within computing loop
1020    checkpoint53d_pre
1021    
1022    checkpoint53c_post
1023    o new version of coupler for AIM+thSIce and Ocean models
1024     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1025     - land: change Evaporation of snow
1026     - aim with thSIce: fix bug in snow-precip.
1027    o changes to calc_gw.F
1028     - bug fix for w^2 term near the bottom boundary
1029     - (hopefully) improve the lateral slip boundary condtions for use with
1030        partial/looped cells
1031      - because the bug fix changes two verification experiments anyway (exp5
1032        and plume on slope), change the lateral boundary condition from half slip
1033        to the value of no_slip_sides
1034    o ebm package wasnt quite up to the parallel task. Fixed that.
1035    o Adjoint of EBM package + verification
1036      * TLM OK
1037      * ADM not sufficient accuracy yet (needs further testing)
1038    
1039    checkpoint53b_post
1040    o Commiting new energy balance model to repository
1041      * package is pkg/ebm
1042      * verif. is verification/global_ocean_ebm
1043      * references are in ebm_driver.F
1044    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1045    C        Global thermohaline circulation. Part I:
1046    C        Sensitivity to atmospheric moisture transport.
1047    C        J. Climate 12(1), 71-82
1048    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1049    C        Global thermohaline circulation. Part II:
1050    C        Sensitivity with interactive transport.
1051    C        J. Climate 12(1), 83-91
1052    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1053    C        Destabilization of the thermohaline circulation
1054    C        by atmospheric eddy transports.
1055    C        J. Climate 7(12), 1870-1882
1056    o Will need long integration testing.
1057    checkpoint53b_pre
1058    
1059    o created pkg/mom_common in preparation for variable viscosity code
1060    o renamed and split ini_mnc_io
1061    o pkg/land: only liquid water can diffuse or run-off
1062    o AIM using land: soil wetness availability account for snow
1063    o added printMapIncludesZeros to EEPARMS namelist
1064    
1065    checkpoint53a_post
1066    o restore TAMC compatiility for exf_constants.h
1067      (no usage of _d in .h)
1068    o Additional storing in KPP in an attempt to fix
1069      TAMC problem with adjoint of KPP code.
1070      (no success...)
1071      Identical code works fine with TAF.
1072    o Fixed verification/natl_box_adjoint experiments.
1073      Initial conditions for Experiments 4 and 5 are now
1074      set to "SEAICE_initialHEFF=0", which is more reasonable,
1075      and hence gives results closer to that of Experiment 2.
1076      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1077    
1078    checkpoint53
1079    o stable checkpoint with up to date adjoint
1080      TLM tests only run for 1st grdchk at the moment. Its unclear if
1081      this is a code problem or a problem with resetting code for g_
1082      variables that is being autogenerated wrong.
1083      Otherwise:
1084       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1085       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1086         are both still in chaos following their security messes.
1087    
1088    checkpoint52n_post
1089    o various build (mostly genmake2) changes including:
1090      - ability to build/run more easily within Cygwin and MacOS X
1091      - more complicated Makefiles with a stronger dependence on Gnu Make
1092    o pkg/seaice modifications
1093      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1094        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1095        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1096      - changed proxy for geostrophic velocity and updated
1097        verification/lab_sea/results/* accordingly
1098      - removed ADI dynamic solver from pkg/seaice
1099      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1100        they caused a segmentation fault under certain circumstances
1101      - removed unused field WATR
1102    o bug fix in exf-package:
1103      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1104         now reflect that.
1105    o small fixes in the cal-package:
1106      - set reference date to first of January for the 'model'-calendar
1107      - failing of cal_CheckDate in cal_FullDate now actually results in a
1108        warning
1109    o small modifications in exf-package to increase flexibility:
1110      - change climtempfreeze from a constant to a runtime parameter that
1111        is specified in data.exf_clim (default = -1.9)
1112      - introduce runtime parameter windstressmax (default = 2.0) that is
1113        specified in data.exf
1114    o fix in pkg/thsice:
1115      - update Evap (Tsf changes) to be consistent with Latent heat flux
1116      - maintain snow precipitation unchanged (even if Tsf >=0).
1117     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1118    
1119    checkpoint52m_post
1120    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1121      this does not change any of the results, because myIter=0 in swfrac always
1122      lead to jwtype=2 (the default anyway), but the call makes little sense
1123      as a default
1124    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1125    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1126      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1127    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1128    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1129    o extending useSingleCpuIO option to work with new exch2 I/O format
1130      - old-style, missing-tile I/O is still accessible by defining CPP
1131        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1132    o monitor package can write to NetCDF files and/or STDOUT
1133    o fix re-definition bug in MNC_GRID_INIT_ALL()
1134    o doc/api_reference added
1135      - a framework for building an API Reference Manual using all
1136        the "protex" comments embedded in the code
1137      - see pkg/generic_advdiff, pkg/mnc for examples
1138    o MNC:
1139      - make myThid the last argument for all subroutines
1140      - new default for the grid files: NO halos
1141      - add useMNC and other run-time flags
1142      - separate per-file-group handling of the unlimited dimension
1143      - early initialization of MNC w/ flags read at the eeboot stage
1144        and lookup tables set in initialize_fixed
1145      - write all MNC output to a freshly-created directory
1146    o thermodynamics sea-ice (thsice) is now tested with testreport.
1147    o test exp. advect_cs: use the standard cs32 grid ; update output.
1148    o Added functionality to grdchk:
1149      pick global i,j,k position (or nearest wet) where to perform check.
1150    
1151    checkpoint52l_post
1152    o new land formulation:
1153      a) use ground enthalpy as prognostic variable to ensure exact
1154         energy conservation.
1155      b) account for water temperature and for latent heat of freezing
1156         in all processes (rain, run-off, ground storage)
1157      c) compute surface and ground temperature implicitly.
1158    o aim_v23 modification for new land model:
1159      a) Treat separately land / ocean / sea-ice surface fluxes
1160         to allow implicit computation of land & sea-ice surface temp.
1161      b) add snow precipitation.
1162    checkpoint52l_pre
1163    
1164    o fix problem (when 1 tile is empty) in min/max monitor.
1165    o fix bug in timeAve (u,vZetatave in common block)
1166    o no restoring terms under ice for pkg/seaice
1167    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1168    o bug fix for pkg/seaice pickups
1169    o change MNC call locations and add coordinate attributes
1170    o mask vorticity at the corner ; affects global_ocean.cs output
1171    o fix ini_curvilinear_grid ; test CS experiments with mpi
1172    o aim.5l_cs: modify sea-ice fraction input file ; update output
1173    o exf: Adding simple range check routine for exf fields after read
1174    
1175    checkpoint52k_post
1176    o removed top-level directory "diags"
1177      - we migrated these functions to pkg/timeave a long time ago
1178    o fixed bug introduced in pkg/monitor
1179    o accuracy ctrlprec = 32 insuffient for gradient checks using
1180      averaged fields (I/O via cost_averages)
1181      -> use ctrl.h in active_file*.F to control I/O precision.
1182    o paramter list of CALL ADTHE_MAIN_LOOP
1183    o added initial do_the_model_io to ecco
1184    o set all ...Freq to zero after cost_final
1185      taveFreq, dumpFreq, pChkptFreq
1186    o MAIN and ECCO differentiability restored
1187    
1188    checkpoint52j_post
1189    o fix nchklev in tamc.h for global_ocean...
1190    o Bringing flow and store directives up-to-date
1191    o Really weird thing!
1192      call do_the_model_io from the_main_loop with parameters
1193      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1194      TAF places a faulty re-call of initialise_varia
1195      after cost_final call which should not be there!
1196    checkpoint52j_pre
1197    
1198    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1199      error messages
1200    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1201    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1202      debug output
1203    o modfied mdsio_writefield.F to handle non-global files under exch2
1204    o update AIM Cubed-Sphere exp (aim.5l_cs):
1205      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1206    o update AIM Equatorial Channel exp:
1207      use standard aim_v23 pkg and change the SST fields to be more realistic.
1208    o globalFile now works with exch2
1209    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1210      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1211    o limit timeave output for hi-res integrations
1212    
1213    checkpoint52i_post
1214    o removed CPP_EEOPTIONS.h from verification/*/code
1215    o updated the tiling for global_ocean_pressure
1216    checkpoint52i_pre
1217    
1218    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1219      the old pkg/aim).
1220    
1221    checkpoint52h_pre
1222    o shortened offending lines in exch2_send_rx?.template
1223    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1224    o genmake2: add build & execute test for NetCDF code
1225    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1226      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1227    o added useSingleCPUIO flag to monitor.F and mon_out.F
1228    o added temporary hack for sea-ice dynamics on the cube:
1229      metric terms are ignored and it is assumed that
1230      there is no sea-ice on cube faces 1, 2, 4, and 5.
1231    
1232    checkpoint52f_post
1233    o added exch2 cube routines to pkg/exch2
1234    o modified hs94.cs-32x32x5 to use it
1235    o added new grid files to hs94.cs-32x32x5
1236    checkpoint52f_pre
1237    
1238    checkpoint52e_post
1239    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1240      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1241    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1242      to work with implicit vertical advection and AB ;
1243    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1244    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1245     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1246    checkpoint52e_pre
1247    
1248    o fix bug in impldiff when Nr=1 or Nr=2.
1249    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1250    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1251    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1252      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1253    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1254    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1255    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1256    
1257    checkpoint52d_post
1258    o re-tiled many expts to allow comparison in multi-processor mode
1259      - updated output accordingly
1260      - changed hs94.128x64x5 to use intial T from file rather than use the
1261        random number generator
1262    o add infrastructure in model routines for fizhi and gridalt packages
1263    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1264    o changes to permit hi-res, cubed-sphere, configuration
1265      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1266      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1267      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1268        of surface winds for the cube
1269      (A verification experiment, based on global_ocean.cs32x15, but with
1270       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1271       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1272       complete with example surface forcing files and matlab scripts to look
1273       at the output and compare it with that of global_ocean.cs32x15.)
1274    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1275       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1276       to conform to the common rule.
1277    o check-in the first version of the coupler + interfaces for multi-components
1278       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1279       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1280       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1281       - ocean and atmos. share the same horizontal grid (no interpolation).
1282       - exchanges between component and coupler is done in forward_step
1283    o new verification experiment, cpl_aim+ocn:
1284       coupled ocean - AIM atmosphere on cs32 grid.
1285    
1286    checkpoint52d_pre
1287    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1288    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1289    
1290    checkpoint52c_post
1291    o Fixing OPTIONS files for use of exf:
1292      - ALLOW_ECCO not needed
1293      - ECCO_CPPOPTIONS.h should not be included from
1294        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1295        as has been the case in the past
1296      - All cal/exf related options are currently set in
1297        single header file. Should remain so until we
1298        agree on a consistent new policy.
1299    o Removed all CPP options for cal package.
1300      cal has no more CPP options.
1301    o modified STOREs in GAD_ADVECTION
1302    o corrected key comp. for passkey
1303    
1304    checkpoint52b_post
1305    o new version: "thsice" of thermodynamic sea-ice pkg:
1306     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1307     - modify fluxes but do not change theta directly;
1308     - light cleaning of bulk_force pkg (still needed with thsice).
1309     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1310       + output_thsice.txt to test thsice & bulk_force pkgs.
1311    o put back grid & coriolis monitor output.
1312    checkpoint52b_pre
1313    
1314    o call "do_the_model_io" at the beginning (=> dump initial state)
1315    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1316    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1317      (need info on NUMBER_OF_PTRACERS)
1318    o missing PTRACERS headers in some routines
1319    o default tamc.h in pkg/autodiff supposed to crash
1320      to ensure proper customization
1321    
1322    checkpoint52a_post
1323    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1324      - moved surfaceTendencyTice from pkg/seaice to main code
1325      - subroutine FREEZE_SURFACE now limits only surface temperature
1326        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1327        => new output.txt for global_ocean.cs32x15 & global_with_exf
1328      - keep the old version of FREEZE for backward compatibility;
1329        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1330      - corresponding modifs for TAF directives
1331    o added surface flux output variables to TIMEAVE_STATVARS
1332    o time-averaged output for pkg/ptracers
1333    o fix problem with ECCO-related divided adjoint
1334      snapshot file was missing some ad-variables,
1335      but no warning issued by TAF
1336    
1337    checkpoint52a_pre
1338    o some bug fixes for #undef REAL4_IS_SLOW
1339    
1340    checkpoint52 = ecco_c52_e35
1341    o after testing adjoints of checkpoint51u_post
1342    
1343    checkpoint51u_post
1344    o this is the post-merge tag of the ecco-branch
1345      (needs another clean checkout and re-testing)
1346    o various natl_box_adjoint configs and results
1347      but no input fields
1348    o obcs adjoint not yet merged!
1349    o adding ECCO global 1x1 and 2x2 degree configs
1350    o updated/extended some store directives for seaice
1351    o pkg/ecco now containes ecco-specific part of cost function
1352    o top level routines the_main_loop, forward_step
1353      supersede those in model/src/
1354      previous input data.cost now in data.ecco
1355      (new namelist ecco_cost_nml)
1356    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1357    
1358    checkpoint51t_post
1359    o this is the pre-merge tag of the ecco-branch
1360    
1361    checkpoint51s_post
1362    o cleanup: removed various obsolete #define-s
1363    o pkg/grdchk
1364      - renamed 'ph-grd 3' to 'grad-res'
1365      - merged from ecco-branch
1366        (remaining bug fixes for obcs gradient checks)
1367      - additional high-precision output for testreport
1368        (grep for 'precision_grdchk_result')
1369    
1370    checkpoint51r_post
1371    o cleaned up or removed CPP_OPTIONS.h files
1372    o updated results for some of the tests to reflect the new
1373      optfiles (-ieee: -O0 instead of -O3)
1374    
1375    checkpoint51q_post
1376    o cd_code:
1377      - moved cd_scheme.F -> cd_code_scheme.F
1378      - separate read_checkpoint from cd_code_ini_vars.F
1379      - separated cd_code part from write_checkpoint
1380      - updated AD_SOURCE, generated .flow
1381      - added CD_CODE_VARS.h to the_main_loop
1382      - Moving cd_code specific store dir.s to pkg/cd_code
1383    o ctrl package totally restructured
1384      - pack/unpack now optional and decoupled from
1385        xx_/adxx_ I/O
1386      - ctrl_pack/unpack cleaned
1387        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1388      - confined inclusion of AD_CONFIG.h to where necessary.
1389    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1390    
1391    checkpoint51p_post
1392    o create initial cd_code package
1393      - WARNING: the initialization of fields within packages
1394        is broken because INI_FIELDS (where READ_CHECKPOINT is
1395        called) is called *before* PACKAGES_INIT_VARIABLES.
1396        This seems to be backwards since
1397        1) its important to initially zero the entire field including
1398           the "halo" region
1399        2) zeroing needs to be done *before* reading pickup info
1400           and the pickup call might or might not happen in any
1401           particular run
1402      - this needs an overhaul for R2
1403    o cleanup verification/*/code/GMREDI_OPTIONS.h
1404    o cleanup testreport
1405    
1406    checkpoint51o_post
1407    o bringing AD-related verif's up to date with genmake2
1408      - carbon/
1409      - global_ocean.90x40x15/
1410      - hs.94.1x64x5/
1411      - (front_relax/ )
1412    o (more) consistent directory structure for AD-related verif.'s
1413    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1414    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1415    o bug fix in find_alpha.F for MDJWF:
1416      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1417        change rho -> rho-rhoConst
1418      - replace call find_rho to find_rhonum
1419    o initialisation of rFlx extended to full array (required by TAF)
1420      and shifted to thermodynamics
1421    o removed PTRACERS.h in ptracers routine
1422    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1423    o Correcting initialisations for fVerU, fVerV.
1424    o helping TAF to recognize dependency on kUp for
1425      fVerU, fVerV
1426    o Replacing delZ by delR in pkg/ctrl/
1427    checkpoint51o_pre
1428    
1429    o undid all of cp51 pending some cleanups and discussion
1430    o added the [#include "AD_CONFIG.h"] statement to all files that need
1431       it for adjoint/tl #defines
1432     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1433     o removed tools/genmake since it no longer works
1434    
1435    checkpoint51n_post
1436    o modifications to make FREEZE flux visible to pkg/kpp
1437      - moved surfaceTendencyTice from pkg/seaice to main code
1438      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1439      - subroutine FREEZE now limits only surface temperature
1440        (this means new output.txt for global_ocean.90x40x15,
1441         global_ocean.cs32x15, and global_with_exf)
1442    o added surface flux output variables to TIMEAVE_STATVARS
1443    
1444    checkpoint51n_pre
1445    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1446    o added [#include "AD_CONFIG.h"] to all files that use the following
1447      defines:
1448      - ALLOW_ADJOINT_RUN
1449      - ALLOW_TANGENTLINEAR_RUN
1450      - ALLOW_ECCO_OPTIMIZATION
1451    
1452    checkpoint51m_post
1453    o incorporating changes to get TAMC/TAF working in genmake2
1454      - added new TAMC/TAF targets to the Makefile
1455      - various cleanups related to package handling
1456      - these changes should have no impact on the forward model
1457    
1458    checkpoint51l_post
1459    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1460     - faster algorithm for cal_addtime.F
1461     - higher precision arithmetic, where needed
1462     - pkg/exf *startdate variables changed from calendar date to
1463       model integration time
1464    
1465    checkpoint51l_pre
1466    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1467    o enable to apply restoring on S & T only in a latitude band.
1468    o update output (external_forcing_surf modif. change truncation errors)
1469       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1470    
1471    checkpoint51k_post
1472    o change default to: useNHMTerms=.FALSE.
1473     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1474       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1475     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1476        exp1, ideal_2D_oce
1477     - change data file of oceanic exp (leave the results unchanged for now)
1478       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1479    o set gravitySign automatically according to the vertical coordinate used
1480      (and change sign: back to "logical" value: +1 when R increases downward)
1481    o added an include barrier to the default CPP_OPTIONS.h and
1482      removed the #include "PACKAGES_CONFIG.h" from it
1483    o fix a bug in mom_fluxform (from chk51j_post)
1484    
1485    checkpoint51j_post
1486    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1487    o adjusted some flow directives (dynamics, thermodynamics)
1488    o added cubed-sphere case to test cost function
1489    o heckpoint_lev?_directives.h now include
1490      pkg-specific directives, whenever those are enabled.
1491    o Moving pkg-specific flow directives to corresponding pkg
1492      Moving pkg-specific differentiation list to corresponding pkg
1493      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1494      ---> conventions are
1495           - pkg_ad.flow
1496           - pkg_ad_diff.list
1497           - pkg_ad_check_lev?_dir.h
1498    
1499    checkpoint51i_post
1500    o merge of the branch-genmake2
1501      - knowingly breaks the older genmake
1502      - automatic generation of all ALLOW_${PKG_NAME} defines
1503      - new testreport supersedes older testscript
1504    o large number of package inclusion and header cleanups
1505    checkpoint51i_pre
1506    
1507    o new output for adjoin of global ocean vector invariant
1508    o fix for checkpoint of thermodynamic seaice and bulk_force
1509    o Steph gchem various cleanups
1510    
1511    checkpoint 51h_pre
1512    o fixed some single quotes
1513    o modify gchem pkg to be more versatile
1514    o modifications to clean up dic pkg
1515    o add pkg/cfc
1516    
1517    checkpoint51g_post
1518    o provide links for ARPACK and ADM*TLM
1519    o start removing verification/vero/
1520    o update AD-related stuff
1521      (in particular some IF-statements in model/src/ routines)
1522    o adding to verification/global_ocean.90x40x15/ adjoint of
1523      vector invariant setup
1524    
1525    checkpoint51f_post
1526    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1527    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1528      of tracer Green's fucntions for ocean inversion project.
1529    
1530    checkpoint51f_pre
1531    o Added on-the-fly spatial interpolation capability
1532        "USE_EXF_INTERPOLATION" to pkg/exf.
1533      - This is a temporary Cartesian-grid hack until
1534        the super-duper ESMF coupler becomes available.
1535      - See verification/global_with_exf/README for usage example.
1536      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1537        flags and modified pkg/seaice accordingly.
1538    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1539        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1540        non-local transport term.
1541    
1542    checkpoint51e_post
1543    o pkg/mom_vecinv:
1544      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1545      - add time-ave diagnostic of vorticity advection.
1546    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1547    o atmospheric geopotential: - include water vapor effect;
1548                                - use p^kappa in p* scaling.
1549    o land pkg: read initial state from files.
1550    o AIM : add stratospheric drag in the upper level
1551    
1552    checkpoint51d_post
1553    o change function ILNBLNK (=> last non-blank char.) to return zero
1554      (instead of the string length) when the string. char is empty
1555    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1556    o modif's to restore TAMC compatibility
1557      - avoid "_d" constructs in PARAMETER declarations
1558      - avoid interrupting lines by comment lines
1559    o Use cluster local disks for purely local I/O
1560      vs. globally visible disks needed for ctrl stuff
1561      (merged from ecco-branch)
1562      - new active_file_loc... and mdsio_..._loc routines
1563      - affected packages: autodiff, ctrl, grdchk, mdsio
1564    
1565    checkpoint51c_post
1566    o introducing integer flag debugLevel
1567      - debLevZero: suppress all output
1568      - debLevA: standard
1569      - debLevB: equivalent to current debugMode=.TRUE.
1570    o introducing pathname variable mdsioLocalDir for mdsio
1571      that can be specified at runtime
1572      (relevant for cluster I/O to local disk)
1573    `
1574    >>>checkpoint51b_post
1575    adjoint of ptracers
1576    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1577    o extended state in checkpoint_lev?, etc.
1578    o alternative ctrl/cost with tr1 or ptracer
1579    o new comlev1_bibj_ptracers
1580    o new ptracers.flow
1581    o made ptracers_forcing same as external_forcing_s
1582    o added verification for adjoint with ptracers
1583      - adm. grdchk fail so far
1584      - tlm. grdchk OK
1585      - checked tapelev/comlev recomputations: OK
1586    <<<checkpoint51b_pre
1587    
1588    checkpoint51a_post
1589    o added code for biogeochemistry package
1590      - new pkgs: dic, gchem
1591      - new subroutine in ptracers
1592    o modify code for biogeo packages
1593      - in model/src and pkg/ptracers
1594    
1595    checkpoint51
1596    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1597      - autodiff, ctrl, exf, grdchk, seaice
1598      kept separate packages
1599      - cost, ecco, obcs
1600    o updating verification/internal_wave, verification/lab_sea
1601      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1602    
1603    checkpoint50i_post
1604    o Preparing next differentiable checkpoint and sync
1605      of MAIN vs. ecco-branch
1606      - 1st step: this one is differentiable
1607      - 2nd step: next(! not this) checkpoint will have updated packages
1608                  from ecco-branch)
1609    
1610    checkpoint50h_post
1611    o new package "land": provide surface BC for AIM.
1612    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1613    o AIM: use true log-P extrapolation for near surface temp (= as in
1614        F.Molteni paper) ; update aim.5l_cs output.
1615    o New variable in PARM03 for more flexible pickups
1616    o somewhat cleaned package initialisation sequence for
1617      ctrl/ cost/ ecco/ in packages_... routines
1618    
1619    checkpoint50g_post
1620    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1621      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1622      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1623        made the default because of faster convergence than ADI
1624    
1625    checkpoint50f_post
1626    o exf totally restructured
1627      - replaced all exf_set_ routines by one generic exf_set_gen.F
1628        and made sure it's still differentiable
1629      - split exf_getffields.F into new exf_bulkformulae.F
1630      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1631      - updated adjoint/makefile and relevant verif. accordingly
1632    
1633    checkpoint50f_pre
1634     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1635          + change Evap over land. (update aim.5l_cs output)
1636     o added missing .cvsignores and made uniform across expts
1637     o changed configuration of tidal_basin_2d expt
1638     o added pkg/debug functions for tracing code in fatal crashes
1639     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1640     o new fn in pkg/monitor to stop model if solution grows too big
1641     o removed lots of single quotes from comments
1642    
1643    checkpoint50e_post
1644    o make KPP work with PTRACERS
1645     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1646       nearly a copy of kpp_transport_s
1647     - there is no analogue to SurfaceTendencyS, so I have to use
1648       gPtr(of the surface layer) instead
1649    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1650    checkpoint50e_pre
1651    
1652    checkpoint50d_post
1653    o change kpp output from multiple-record state files to single-record state
1654      files analogous to write_state.F
1655    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1656      analogous to the cg2d-related output.
1657    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1658      so that writing to internal file fn (with length 512) fails.
1659    checkpoint50d_pre
1660    
1661    checkpoint50c_post
1662    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1663    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1664    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1665    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1666    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1667    
1668    checkpoint50c_pre
1669    Merging from release1_p13:
1670    o bug fix for pkg/seaice dynamic solver
1671    o Added SEAICE_initialHEFF to pkg/seaice
1672    
1673    checkpoint50b_post
1674    o store u*,v* in gU,V instead of in guNm1,gvNm1
1675    o in order to put the momForcing out of the Adams-Bashforth:
1676      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1677      to timestep.F
1678    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1679    o re-generate output for highly sensitive test-exp:
1680       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1681    
1682    checkpoint50b_pre
1683    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1684    o corrected CPP option mismatch in exf_Bulk... functions for case
1685      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1686    
1687    checkpoint50a_post
1688    o Bug fix for merging between c50 and KPP.
1689      ikey was passed from thermodynamics to kpp_calc via
1690      common block rather than being recomputed in kpp_calc,
1691      in contradiction with new key itdkey.
1692      New key ikppkey created, and tamc.h headers updated.
1693    
1694    checkpoint50
1695    - 2nd step of merge with ecco-branch:
1696      merge changes in ecco-branch back into main trunk
1697    - bug fix in find_alpha
1698    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1699    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1700    - merged some sliced AD support routines
1701    
1702    checkpoint49
1703    merged from ecco-branch:
1704    o exf:
1705      - Enable initialisation of forcing fields to constant
1706        (runtime) values.
1707      - in exf_getffields.F
1708        Reduce i-/j-loop to interior domain, discarding overlaps.
1709        That also fixes wrong TAF-key computations for key_1, key_2
1710        with bulf formulae.
1711      - exf_init.F modify #ifdef for exf_init_evap
1712      - exf_getffieldrec.F, ctrl_getrec.F
1713        The following INT-usages are not safe:
1714          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1715          fldcount = int(fldsecs/fldperiod) + 1
1716        and were modified.
1717    o autodiff: checkpoint_lev...
1718      - updated storing for bulk formulae (some arrays were missing)
1719      - added state for seaice package
1720      - synchronized with main branch
1721    o DIVA:
1722      Modif.s in
1723      - the_main_loop.F
1724      - the_model_main.F
1725      and added cost_final_restore.F cost_final_store.F
1726      o With these changes, it is possible to fully separate
1727        the first forward run to compute the cost function (mdthe_main_loop)
1728        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1729        into separate model executions.
1730        This enables better tuning of DIVA to given queue sizes.
1731      o Loss of cost function value in consecutive DIVA runs is
1732        fixed by storing to 'costfinal' file.
1733      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1734        beginning/end of adjoint integration is accounted for.
1735      The current changes apply to TAF-1.4.26.
1736      TAF has one remaining bug, requiring one manual change
1737      (see MITgcm manual).
1738    o cal: synchronized between MAIN and ecco-branch
1739    
1740    checkpoint48i_post
1741    o Changes to restore differentiability of code w.r.t. previous tag
1742      (mostly adding new routines to make list and replacing
1743      pressure by totPhiHyd).
1744    o Updated and merged grdchk package
1745      - has both ADM and TLM checks
1746      - works for single- and multi-proc.
1747      - output cleaned
1748      - worked successfully for parallel DIVA
1749    o genmake:
1750      - Adding -platform=SP4
1751      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1752    o Modif. for DIVA:
1753      ctrl_unpack should not be called in intermediate DIVA interval.
1754      (similar thing would apply for active files such as
1755      tbar, sbar, psbar, which should not be reinitialised;
1756      only relevant for ecco-branch)
1757    
1758    checkpoint48h_post
1759    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1760    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1761    o Added SEAICE_initialHEFF to pkg/seaice
1762    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1763    
1764    checkpoint48g_post
1765    --- EOS:
1766    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1767      store total Potential in totPhyHyd for diagnostics & EOS.
1768    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1769    --- Pressure/geopotential gradient:
1770    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1771    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1772      ( changes results of global_ocean_pressure )
1773    o NLFS + z-coord.: add eta*Rho' contribution.
1774    o accurate phiHyd when using interface-W at the middle between 2 centers
1775     ( changes results of ideal_2D_oce )
1776    o includes r* 2nd term in potential gradient.
1777    
1778    checkpoint48f_post
1779    Merging from release1_p12:
1780    o Modifications for using pkg/exf with pkg/seaice
1781      - improved description of the various forcing configurations
1782      - added basic radiation bulk formulae to pkg/exf
1783      - units/sign fix for evap computation in exf_getffields.F
1784      - updated verification/global_with_exf/results/output.txt
1785    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1786      (SBO) core products, including oceanic mass, center-of-mass,
1787      angular, and bottom pressure (see pkg/sbo/README.sbo).
1788    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1789      to avoid negative values in shallow regions.
1790      - updated verification/natl_box/results/output.txt
1791      - updated verification/lab_sea/results/output.txt
1792    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1793    o Added useSingleCpuIO option (see PARAMS.h).
1794    o Updated useSingleCpuIO option in mdsio_writefield.F to
1795      work with multi-field files, e.g., for single-file pickup.
1796    o pkg/seaice:
1797      - bug fix in growth.F: QNET for no shortwave case
1798      - added HeffFile for specifying initial sea-ice thickness
1799      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1800    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1801      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1802    o pkg/seaice:
1803      - adjoint-friendly modifications
1804      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1805    
1806    checkpoint48e_post
1807    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1808    o dynamics: change definition of computational domain & adapt mom_fluxform
1809      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1810    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1811        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1812        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1813        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1814        inverted_barometer solid-body.cs-32x32x1
1815      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1816    
1817    checkpoint48d_post
1818    o in preparation for r*:
1819     a) use pre-computed gradient of hydrostatic potential:
1820        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1821     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1822        => affects results of glob_oce_pressure (different truncation error)  
1823      update output.txt of ideal_2D_oce & global_ocean_pressure
1824    
1825    checkpoint48d_pre
1826    o in preparation for r*:
1827      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1828      pass the 2 comp. of the grad. as arguments to momentum S/R.
1829      but for the moment, only used if it does not change the results.
1830    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1831    
1832    checkpoint48c_post
1833    Modifications in treatment of initial flux forcing controls
1834    to avoid extra storing of flux fields.
1835    
1836    checkpoint48c_pre
1837    o Added tidal_basin_2d experiment (currently 1D!)
1838    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1839    
1840  checkpoint48b_post  checkpoint48b_post
1841  o r* coordinate added in #ifdef NONLIN_FRSURF block.  o r* coordinate added in #ifdef NONLIN_FRSURF block.
1842   (modification to pressure gradient not yet implemented)   (modification to pressure gradient not yet implemented)

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