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revision 1.76 by jmc, Fri Jul 12 14:52:08 2002 UTC revision 1.675 by jmc, Mon Jun 12 22:25:38 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 vector_invariant: fix highOrderVorticity(=4.th.Order) advection
8      on CS-grid: no longer loosing mass.
9    o exf & curvilinear-grid: no longer modify longitude xC & xG.
10    o pkg/ggl90: fix sloppy output and fix a bug
11    o pkg/seaice: added SEAICEuseEVPpickup parameter
12      - Set to false in order to start EVP solver with
13        non-EVP pickup files when using SEAICEuseEVP
14      - fix sign error in diffusion in seaice_calc_rhs
15    
16    checkpoint58h_post
17    * Modifications for bottom topography control
18      o replace hFacC by _hFacC at various places
19      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
20      o add non-self-adjoint cg2d_nsa
21      o update autodiff support routines
22      o re-initialise hfac after ctrl_depth_ini
23      o works for 5x5 box, doesnt work for global_ocean.90x40x15
24    * Adding verification for 5x5 box (4-layer) bottom topography control
25    
26    checkpoint58g_post
27    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
28       used for mean seasonal cycle, mean diurnal cycle); add an example
29       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
30    o pkg/ggl90:
31      - add parameter (minimum surface kinetic energy)
32      - fix bug (avoiding division by zero)
33    o couple pkg/thsice to pkg/seaice:
34      - modify advection in seaice to accomodate new scalar fields to be advected
35      - only muliDimAdection scheme work with seaice/thsice
36      - mapping of thsice-variables to seaice-variables, back and forth
37      - does not break the verification experiments, but does not give the
38        desired results either
39    o pkg/seaice
40      - make (default) second order advection a bit less confusing?
41    
42    checkpoint58f_post
43    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
44      to pkg/seaice):
45      - new routines thsice_map_exf and thsice_get_exf provide the interface
46      - add an additional formal parameter to thsice_solve4temp
47    o pkg/exf:
48      - add new fields wspeed, snowprecip (to be able to couple to thsice)
49      - correct Stefan-Boltzmann constant
50      - new parameter for longwave surface emittance
51      - separate some stuff from exf_bulkformulae into new routines  
52        exf_radiation, exf_wind
53      - add new parameters and constants: longwave emissivity for ocean, ice
54        and snow, evaporation parameters over ice
55      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
56        either wind from stress or stress from wind
57    o pkg/thSIce:
58    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
59    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
60       and THSICE_CALC_THICKN
61    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
62    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
63      to make debugging easier.
64    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
65    o pkg/bulk_force:
66      - clean-up comments and parameters ;
67      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
68    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
69      generate new output for test-experiment: aim.5l_cs.thSI
70    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
71      testreport accordingly
72    
73    checkpoint58e_post
74    o SEAICE_CGRID adjoint done
75    o R_STAR adjoint implemented.
76      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
77      * need to sort out init. of h0facc, etc.
78    o Make pkg/profile fully independent of ecco,cost, etc. stuff
79      to be able to use it in pure forward.
80    
81    checkpoint58d_post
82    o upgrade simple test-experiment to tutorial example:
83     step.1: duplicate the experiment and (step.2) will remove the old copy.
84      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
85      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
86      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
87      tutorial_global_oce_biogeo    <- copy of dic_example
88      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
89      tutorial_plume_on_slope       <- copy of plume_on_slope
90      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
91      tutorial_global_oce_optim     <- empty for now (David ?)
92      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
93     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
94    o correct a sign problem in cost_scat.F
95    o obcs and ptracers: fix boundary conditions for advections schemes
96      with larger stencil
97    o thsice adjoint: start
98    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
99      completeness
100    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
101      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
102    o ptracers adjoint:
103      * avoid extensive recomputatations
104      * fix missing re-init. of gptr (missed by TAF)
105    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
106      me to turn off the excessive output to STDOUT that this package produces
107    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
108      and add those terms in Vector-Invariant formulation.
109    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
110      if the control period (xx_hfluxperiod etc) is 0
111    o in profiles pkg, clean routines and fix details
112    o in ecco pkg, reading ssh data:
113      fix problem in case the model does not start at iter0=0
114    o fix mnc-pickup/restart for ptracers
115    o new package prifiles:
116      code to compute profile-based cost by Gael Forget
117      (modifs in ecco, ctrl, autodiff)
118    o Benign bug fix in initialization (spotted by M. Mazloff) of
119      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
120    
121    checkpoint58c_post
122    o adjoint: finish NLFS adjoint and provide reference output in
123      verification/global_ocean.90x40x15/results_ad_nlfs
124    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
125      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
126      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
127      with SEAICE_CGRID defined.
128    o move calendarDumps from "data" to "data.cal" and clean-up the code
129      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
130    o add useEXF & useCAL flags (for now, set in hard-coded way)
131    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
132      (were missing in NH mode, and wrong in quasihydrostatic mode).
133      waiting for Chris updated version of calc_gw to add those CALLs.
134    o fix bug in quasihydrostatic S/R ;
135      add a test for this option: global_ocean.90x40x15.qshyd
136    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
137      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
138    o add on/off flag useOffLine for package OFFLINE
139    o seaice:
140      - modify advection so that it works also on the C-grid
141      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
142        problem in multi-tile runs with C-grid
143      - add flags for clipping ice velocities and/or masking solver forcing
144      - fix drag (ocean on ice) formulation and a bug that caused noise in the
145        C-grid solver
146      - added a few comments to seaice_diffusion.F
147      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
148        are now exclusive)
149      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
150        required re-ordering the code a little:
151       + make DAIRN global variable (defined in SEAICE)
152       + move computation of the viscosities eta and zeta into a new separate
153         routine (because I need to recompute them in seaice_ocean_stress.F)
154    
155    checkpoint58b_post
156    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
157      update output.txt of exp. aim.5l_cs.thSI
158    o various mnc cleanups and improvements:
159      + shrink lookup tables by factor of ~4
160      + better error reporting when running out of lookup space
161      + able to handle longer path/file names (up to 500 chars)
162    o adjoint:
163      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
164      - TBD: "hidden" mom_vecinv recomp. in dynamics
165    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
166     (allow to differentiate between forcing components using new integer flags:
167      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
168     and add new flag to put Dissipation tendency out of Adams-Bashforth.
169    o ecco
170      - enable trend removal from SSH anomaly obs.
171    o adjoint
172      - a fix for PmEpR when #undef EXACT_CONSERV
173      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
174      - try to fix "hidden" recomp. in forward_step for NLFS
175        (NLFS seems broken sometimes after I checked it in)
176    o seaice:
177     - add c-grid version of the dynamic solver:
178       + three new routines that are the c-grid substitute lsr, dynsolver
179         and ostres
180       + put a few fields that were local to dynsolver into global common
181         blocks, so that I can move the computation of stresses etc into
182         seaice_lsr (saves coding but may break the adjoint).
183     - replace more hardwired parameters by runtime parameters
184     - add ice masks that mask the rhs of the implicit solvers where there
185       is no ice (commented out in seaice_dynsolver, because i am not sure
186       if this works properly), eventually this should replace the clipping
187       of ice velocities in seaice_dynsolver to +/-40cm/s.
188    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
189      include it only where its needed
190    o move balancing of fluxes before the call of external_forcing_surf
191    o seaice:
192      - correct units of turning angles (now they are really in degrees)
193      - move computation of GWATX/Y out of main routine into dynsolver
194      - initialize GWATX/Y in seaice_init
195    o Apply mask on Fresh-Water flux (needed for SSH forcing).
196      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
197    o seaice: add runtime flags for turning angles (default to zero)
198    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
199      and trend from exf forcing and ctrl control adjustments
200    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
201      (since checkpoint57x_post)
202    o change the default rotation period to 86164.s = the Earth rotation
203    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
204      and based on a reference stratification. Tested within hs94.cs-32x32x5.
205    o seaice advection: add code for choosing between the default (2nd order
206      central differences) and multiDim advection schemes provided by
207      pkg/generic_advdiff
208    o seaice:
209      - removed all references to SEAICE_GRID.h fields from
210        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
211        (cubed-sphere configuration will change a little)
212      - grid computations in seaice_init are obsolete now.
213      - cleaned up code a little so that is easier to read (hopefully).
214      - added new (better?) discretizations of default advection and diffusion
215        (turn on with SEAICEuseFluxForm)
216      - replace 1 in 3d global fields by kSurface in growth.F
217      
218    checkpoint58a_post
219    o seaice:
220      - bug fix in advect.F
221    o shelfice:
222      - separate shelfice load anomaly from pload (breaks with time
223        dependent forcing), => introduce constant field shelficeLoadAnomaly.
224        Its default is 0., but it may be computed more cleverly from (unknown)
225        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
226        done offline. A good approximation of the pressure load anomaly is
227        necessary to avoid large initial adjustment processes underneath
228        deep-reaching shelfice.
229      - small fix in ISOMIP shelfice_thermodynamics
230      - add more sophisticated thermodynamics of Hellmer (1989), this is
231        now the default
232      - give a few constants more intuitive names
233    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
234      if bulk formulae are used in long integration (especially EmPmR). Turn
235      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
236      if balancePrintMean, the imbalance that is substracted is printed to
237      STDOUT.
238    o fix bug (typo) in obcs_apply_eta.F
239    o add a new package shelfice which enables us to model the circulation
240      underneath shelf-ice with draughts of hundreds of meters.
241     - works
242     - to do: + include improved thermodynamics
243              + check whether kSurfC (from model/inc/SURFACE.h) can be used
244                instead of new field kTopC
245              + can we use topoFile, Ro_surf and existing code in ini_depth.F
246                instead of new field R_shelfIce and new code in ini_depth.F
247                and ini_mask_etc.F?
248              + adjust vertical mixing schemes?
249    o seaice pkg:
250     - add a cpp-flag to include a simple formula for a salinity dependent
251       freezing point of sea water at the surface
252     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
253       meridional stresses are now different (and hopefully correct)
254    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
255       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
256       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
257    o pkg/diagnostics: add options and parameters for regional-statistics
258       diagnostics ; define regions by reading a region-mask from a file
259       (might add other options later)
260    o pkg/bulk_force:
261     - add option and parameters to use AIM surface-flux formulae.
262     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
263       others forcing fields (defined in PARM05, parameter file "data") are loaded
264       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
265     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
266     - use the right EXCH call for uwind,vwind (to work on CS-grid).
267     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
268       and parameters (note: calcWindStress replaces .NOT.readwindstress).
269     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
270    
271    checkpoint58
272    o add "--embed-source" option to genmake2 which, when the supporting
273      tools can be compiled (as determined by genmake2) will turn on the
274      embed_files package which then embeds the entire MITgcm source code
275      (*.[fFhc] + Makefile) used for the build within the executable
276      - requested by CNH but off by default
277      - adds a paltry <9MB to the mitgcmuv executable in most cases
278      - only writes the output when useEMBEDSRC in eedata is true
279    o clean up 3-dim. relaxation codes:
280      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
281      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
282      * Thanks to Tom Haine for testing!
283    
284    checkpoint57z_post
285    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
286      affects output (@ truncation level) of exp. plume_on_slope ; updated.
287    o fix the pickup behavior for obcs in combination with ptracers
288    o fix a bug in ptracers_external_fields_load
289    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
290      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
291    o transfered surface NH pressure to eta field (if exactConserv).
292    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
293         and update lab_sea output.txt file.
294    o completing 3-dim. relaxation code: additional term
295         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
296      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
297      * At compile time, in "EXF_OPTIONS.h" set
298          #define  ALLOW_CLIMTEMP_RELAXATION
299          #define  ALLOW_CLIMSALT_RELAXATION
300      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
301          tauThetaClimRelax3Dim = 15552000.0,
302          tauSaltClimRelax3Dim  = 15552000.0,
303      * 3 cases:
304          1) Use a constant-in-time 3-dim. field
305          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
306          3) Real-time relax. to time-evolving prescribed field
307    o Adding Laplacian-type smoothness constraint on
308      initial and boundary (forcing) controls (ic, bc)
309      * enable at compile-time via
310        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
311      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
312      * Absolute scale somewhat unclear so far
313      * no area weighting was included since no other cost term does so far
314    
315    checkpoint57y_post
316    First step for a NLFS adjoint
317    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
318    o new init. routines for calc_r_star, calc_surf_dr
319    o still need to deal with ini_masks_etc
320    o testreport seemed happy
321    checkpoint57y_pre
322    
323    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
324    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
325    o add new offset feature to offline pkg (plus minor cleanup)
326    o cfc fixes for final year of integration
327    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
328      be in GCHEM_OPTIONS).
329    
330    checkpoint57x_post
331    o fix testreport Pb in multiple test experiment.
332    o cleanup our namelist syntax in verification:
333      - make it more F95 standards compliant (some work still needed)
334      - allows the vast majority of our tests to work with gfortran
335    o Non-Hydrostatic:
336     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
337     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
338    o Allow to apply AB on T,S rather than on AB(gT,gS):
339     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
340     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
341       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
342     - need a "clever" read_pickup to restart from the other AB formulation
343    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
344    o remove some unused variables (reduces number of compiler warnings)
345    o adjoint
346      * Disable useVariableViscosity for adjoint for time being
347        (there are a number of extensive recomputations)
348      * Initialize certain variables needed for adjoint
349    
350    checkpoint57w_post
351    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
352                 fix the singleCpuIO RS version of MDSWRITEFIELD
353       and add a WARNING if using globalFiles=T with multi-processors.
354    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
355      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
356    o tracer advection scheme:
357      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
358       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
359       was not very convenient).
360      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
361       (further tests needed for the implicit DST & Flux-Limiter schemes).
362    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
363      and sRef for convenience, handy, when you want to initialize
364      ptracers in a large domain with a constant non-zero value. Also,
365      untangle ptracers_init.F a little.
366    
367    checkpoint57v_post
368    o change dome exp. to use variable viscosity in side-drag terms.
369    o remove all the files from the cfc_offline test since they are now
370      incorporated into tutorial_cfc_offline which has been producing
371      identical results for a few days of testing
372    o add new parameter: sideDragFactor to enable half-slip-side BC
373      and change side-drag S/R to use viscosity from mom_calc_visc
374      (can switch back by setting sideDragFactor=0.); affects results at
375      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
376       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
377    o vorticity & strain are now computed without masking, to account for
378      no-slip-side BC in variable viscosity calculation ; mask is applied
379      anyway later on, before computing advection/coriolis terms.
380    o modify exp4 to test new obcs support for reading from external files
381      and for passive tracers
382    o fix behavior of ptracers_monitor when monitor output is written to a
383      netcdf-file; still not independent of monitor.F (writes in the same
384      file).
385    o change default value of tRef (put a uniform, meaningful value for ocean
386      & atmos) and initialize sRef (was missing, as Martin mentioned).
387    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
388      to be proportional to enstrophy dissipation length.  Thus,
389       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
390      This is now consistent with Smagorinsky and with the manual.
391    
392    checkpoint57u_post
393    o OBCS and PTRACERS: add open boundary support for passive tracers
394      - either use homogenous (pseudo) v.Neumann conditions or prescribe
395        OB-values from file; this is not different from the way theta and salinity
396        are treated
397      - however, Orlanski-radiation conditions are not supported, and the model
398        will stop if you use pTracers and Orlanski at the same time.
399      - beefed up the rountine obcs_external_fields_load: now only those open
400        boundary values are overwritten with values from files for which there
401        are really files, otherwise the OB-fields remain untouched. This makes
402        it possible to use different OBs at different ends of the domain (as
403        with EXF)
404    o reduce number of exch calls in shap_filt (s2).
405    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
406      truncation level) 4/5 MLAdjust test results (11&12 digits match).
407    
408    checkpoint57t_post
409    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
410    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
411      same truncation, independent of the face number: affects affects several
412      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
413    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
414      note that biharmonic viscosity + no-slip was not tested in any experiment.
415    o fix bug in non-linear free-surf side-drag ; generate new output for
416      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
417    o make mnc honor the writeBinaryPrec flag for most kinds of output
418    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
419    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
420      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
421    o add brackets in multi-terms sum to get same truncation, independent of
422      the face number (manage to get exactly same value of gU,gV at the cs-edge)
423      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
424    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
425      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
426      a maximum grid-scale Reynolds number.  Also, changes all length calculations
427      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
428      Suggested values of viscosity parameters found in mom_calc_visc.
429      Many new viscosity diagnostics available.
430    
431    checkpoint57s_post
432    o Add clearing-house for viscosity calculations, mom_calc_visc and
433      correct numerous bugs in LeithD and Smagorinsky discretizations.  
434      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
435      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
436      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
437      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
438      The Strain-Tension form is now called with useStrainTensonVisc=.true.
439      ViscAhStrain and viscAhTension are now retired.
440    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
441    o In response to JMC's bug report, genmake2 now ignores any soft-links
442      that it finds in the *current* directory when searching for files.
443      Soft-links found in any other source directories will still work as
444      they did before.
445    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
446      a C routine to unlimit the stack size
447    o mnc-ify pkg/aim snapshot vars
448    o mnc-ify pkg/land as requested by Daniel
449    o various changes to mnc including:
450      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
451      - output can now be grouped so that all files within a group
452          change the ITER portion of their names in lock-step together
453      - can now read ("global") PER-FACE (in addition to PER-TILE) files
454          and works with both EXCH1 and EXCH2 (but needs more testing)
455      - writing works for all verification test cases w/ g77 on Linux
456    
457    checkpoint57r_post
458    o make MNC variable initialization happen earlier
459    o add diagnostics for (almost) each term of the momentum Eq.
460    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
461    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
462    o remove MINIMAL_TAVE_OUTPUT option ;
463      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
464    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
465      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
466    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
467    o add time-dependent SST, SSS control
468    o cost terms in ecco/ modularized (new cost_generic.F)
469    o cost_averages routines are modularized (new cost_averagesgeneric.F)
470    o new infrastructure for seaice model vs. obs misfits in seaice/
471      * driver from the_main_loop.F is seaice_cost_driver.F
472      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
473      * gradient check in Exp. 6a of natl_box_adjoint/
474    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
475      (see README file)
476    
477    checkpoint57q_post
478    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
479    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
480      - bug was reported by Jean-Michel and Ian Fenty
481    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
482      update exp. cpl_aim+ocn output.
483    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
484      Needed for high-res. runs with large global files
485      to be able to limit tapelev size
486    o Changed some tests for adjoint:
487      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
488      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
489      * global_ocean.90x40x15/ back to default 3-level checkpointing
490    o Modifications to enable scripted COMMON to MODULE conversion
491      * verification/OpenAD/code/ has necessary scripts and description;
492      * converts, compiles and runs successfully;
493    
494    checkpoint57p_post
495    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
496    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
497      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
498    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
499    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
500      (was already the case for dissipation with mom_vecinv,
501       and also the case for grad.PhiHyd when staggered-timeStep)
502      This will allow to put dissipation out-off the AB time-stepping.
503     Unfortunately, affects truncation error. Update output of exp. that "fails"
504      (cg2d matching number) and leave the others for later: front_relax(10),
505      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
506      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
507    
508    checkpoint57o_post
509    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
510      (2) its ready to be documented during the 20050801 DocFest
511    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
512      for ideal_2D_oce and lab_sea on linux_ia32_g77
513    o set to #undef CTRL_SET_OLD_MAXCVARS_30
514      in global1x1_tot/code_seaice_adj to access indices 32, 33
515      (worth another tag)
516    
517    checkpoint57n_post
518    o adding precip control xx_precip 32
519    o adding swflux control xx_swflux 33
520    o Replacing 10 forcing penalty cost routines by 1 generic.
521    o Implementing partitioning in time-mean and variable adjustment
522      for atmos. state.
523    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
524    o in natl_box_adjoint:
525      * updated exp 1 to 10
526        (but does not have time-mean vs. variable split results yet)
527    o updated global1x1/*_seaice_adj/
528      to incorporate latest changes
529    o enable useSingleCpuIO for mdsio vector routines
530      (applies in particular to tapelev I/O)
531    o removed inefficient K-loop in all active_file*control*.F
532    
533    checkpoint57m_post
534    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
535      and advect_cs (use EXCH-2 and standard cs-32 grid files).
536    o pkg/exch2: filling of face-corner halo regions is optional
537      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
538    
539    checkpoint57l_post
540     tag before updating tutorials (pre-release-2)
541    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
542       for output and interpolation of input fields onto model grid)
543    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
544       Affects results of exp. rotating_tank ; update output.txt.
545    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
546          and taking the square quantity and/or using a fraction-weight field.
547    o fix aim_diagnostics_init.F mate numbers.
548    o add mnc output capability to diagnostics/diagstat and update
549      our cvsignore files for the ACSII output generated
550    
551    checkpoint57k_post
552    o lab_sea now uses diagnostics package and provides a suite of
553      new EXF diagnostics output.
554    
555    checkpoint57j_post
556    o exf
557      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
558        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
559        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
560      * extended diagnostics output
561        - now includes all EXF variables
562        - hs, hl moved to common block
563        - separate S/R for diagnostics, called after ctrl vector is added
564        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
565        - EXFqnet contains true Qnet (i.e. includes qsw)
566      * updated verif. lab_sea, global_with_exf
567      * Rearranging hflux (exf_mapfields -> exf_getforcing)
568        to ensure that diagnostics sees a true EXFqnet
569    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
570    o diagnostics pkg: change pointers so that 1 diagnostic can be used
571      several times with different frequencies.
572    o mnc-ify the thsice package as requested by Daniel Enderton
573      - the monitor--MNC output needs work
574      - many attributes need to be added (most are currently blank)
575    o mnc-ify theaim_v23 package as requested by Daniel Enderton
576      - many attributes need to be added (most are currently blank)
577    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
578    o add Sadourny like discretization to the 4th.O vorticity advection scheme
579    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
580      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
581         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
582    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
583     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
584    
585    checkpoint57i_post
586    o Diagnostics package was changed: diagnostic allocation is now deactivated
587      by setting an empty file name in the namelist (used to be by setting 0 frequency)
588    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
589      add 1rst Order upwind vertical Shear.
590    o add a quick fix for A/B checkpointing in OFFLINE mode
591    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
592      end-run around the C/Fortran linking horror in eesup/src/timers.F
593    o added pkg/runclock: allows user to terminate run based on wall clock
594    o added non-hydrostatic scaling parameter: nh_am2
595    o pkg/my82: futile attempt to make results compiler-independent by adding
596      some "_d 0", etc. no effect.
597    o for mnc output, fill the 'T' coordinate var with myTime and create a
598      separate 'iter' variable for iteration count
599    o pkg/diagnostics:
600      add new capability: output of Global/Regional & per-level statistics ;
601      tested against monitor output (including land & thSIce) on various exp.
602    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
603    
604    checkpoint57h_done
605      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
606      data.diagnostics, data.gchem, data.ptracers) is done.
607    
608    o pkg/diagnostics: prepare for Global/Regional statistics.
609      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
610    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
611      and rename it: DIFFERENT_MULTIPLE
612    
613    checkpoint57h_post
614    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
615    o pkg/diagnostics: change output frequency, now in seconds (instead
616      of Nb of iterations). This requires to change data.diagnostics.
617    checkpoint57h_pre
618    
619    o in mnc, let the user create the output dir if both mnc_outdir_date
620      and mnc_outdir_num are false
621    o add fflags() to pkg/diagnostics which allows one to specify, on a
622      per-file basis, the file precision [default behavior is unchanged]
623    o added diagnostics to pkg/kpp, including computation of mixed layer
624      depth based on a temperature/density criterion
625    o updated verification/natl_box to test the new pkg/kpp diagnostics
626    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
627    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
628    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
629      not mnc -- this mistake was found by JMC and is now corrected
630    
631    checkpoint57g_post
632    o add Adams-Bashforth 3rd Order time stepping:
633      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
634      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
635    checkpoint57g_pre
636    
637    o make lambda[Theta,Salt]ClimRelax spatially varying
638      (default remains spatially uniform constant based on tau)
639    o added new control variables
640      * init. uVel, vVel, etanN
641      * lambda[Theta,Salt]ClimRelax
642    o separate masks used for ctrl_pack/unpack 'from write_grid' output
643      (suggested by G. Forget)
644    
645    checkpoint57f_post
646    o add parameter "baseTime" = model base time = time at iteration zero
647      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
648      account for baseTime shift
649    o move Coriolis arrays from PARAMS.h to GRID.h
650    checkpoint57f_pre
651    
652    o mnc-ifying the seaice package
653    o introduced an alternative length scale calculation for use in the limiting
654      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
655    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
656    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
657      as well as grad(vort3).  Made it compatible with both approximate form
658      for the cubed sphere and full form of these gradients.  Added flag
659      useFullLeith to select between approximate and full form.  
660    o add "d0" in getcon.F to reduce differences between compilers/platforms
661      update output.txt of exp. fizhi-gridalt-hs
662    o change port_rand funtion to allow to set the seed.
663    o fix obscure MNC bug involving conversion between reals and integers
664      - it caused no problems with certain (eg. gcc, ifc) compilers but the
665        new version is now more standards-compliant
666    o adjoint-related modifications
667      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
668      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
669      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
670    
671    checkpoint57e_post
672    o Adding eddy stress controls a la Ferreira et al.
673    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
674    
675    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
676      update output.txt of exp. fizhi-gridalt-hs
677    o add more "Z" dimensions and associated coordinate vars to MNC
678    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
679    o parameter calendarDumps: when set, approximate months (30-31 days) and years
680      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
681      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
682      months and years.  Requires pkg/cal.
683    o diagnostics: add pickup functionality
684      - off by default for backwards compatibility
685      - current version only uses MDSIO -- MNC will be added
686    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
687    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
688    
689    checkpoint57d_post
690    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
691    o modify verification/ideal_2D_oce so that it tests the creation of mnc
692      output from the diagnostics package
693    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
694    o make genmake2 more portable by using ".$FS" instead of ".f" for more
695      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
696    o add coordinate variables to the MNC output from the diagnostics package
697    o change MNC-flags default value: true when useMNC=TRUE
698    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
699      the ability (off by default) to read the grid information using MNC
700    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
701    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
702    o do snap-shot diagnostics at the middle of the time-interval (instead of
703      at the end).
704    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
705      new test for AIM with thSIce + slab-ocean
706    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
707    o move state variable diagnostics to the beginning of the time step ;
708      (note: still needs some work specially for snap-shot diagnostics)
709      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
710    
711    checkpoint57c_post
712    o Change testing option (-ieee) to get closer agreement between g77 & ifort
713    o generate new output.txt files on faulks with g77 & the new -ieee option
714    checkpoint57c_pre
715    
716    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
717      update output.txt of exp. global_ocean.90x40x15
718    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
719      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
720    o add saltFlux(+File) forcing capability with periodicExternalForcing
721    o allow to use pkg diagnostics for GM-Redi & ThSIce output
722    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
723    o improvements for the MNC output from DIAGNOSTICS:
724      - correct handling of the unlimitied dimension
725      - all dims now have associated coordinate variables
726      - variables located at U, V, and Corner ("Z") points are now written
727        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
728        *all* data points are output
729    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
730    o added pkg/seaice/seaice_monitor.F
731    o mdsio_readfield.F can now read files visible only to master MPI process.
732    o pkg/seaice: some test code for ice-modified ocean stress
733    o exf_getffields interpolation defaults to bilinear for all scalar forcing
734      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
735      spurious negative numbers for precipitation and humidity.  Will cause
736      some small numerical differences for integrations using pkg/exf/exf_interp.F.
737    o pkg/ctrl/
738      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
739        May be enabled via doPackDiag
740      *  introduce z-scaling of
741         + gradient (doZscalePack) and
742         + control (doZscaleUnpack)
743    o pkg/mdsio/
744      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
745      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
746    
747    checkpoint57b_post
748    o simplify options in diagnostics_fill arguments (remove weird combinations)
749    o fix MNC coordinate variables so that they now contain per-face index
750      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
751      general, EXCH2 grids are only aligned to a "local" coordinate system
752    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
753    o Implement instantaneous output within pkg diagnostics:
754      setting a negative frequency in data.diagnostics produces
755     "snap-shot" output (as opposed to time-average if freq > 0)
756    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
757      NOTE: change ptracer diagnostics name: use 2 characters to work with
758            more than 9 tracers. Add also diagnostics of advect & diffus flux.
759    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
760      becomes the coordinate variable for the 'T' dimension
761    o add CF-style coordinate variables to MNC
762      - just a first cut:  numbers are meaningless on the cubesphere and
763        missing along the T axis but otherwise it works!
764    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
765    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
766    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
767      this is based directly on what the model compute, so that the content of
768      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
769    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
770    o clean up build options files for SunOS, in particular
771      - remove -traditional from xmakedepend
772      - change -xarch=v9 to -xarch=native for f77
773      - restore use of make (not gmake)
774      - add CC=gcc if using g77
775    o changes per discussion of AM, JMC, & EH3 today:
776      - move redundant "grid" variables out of "state" -- in preparation of
777        creating proper CF-style coordinate variables and in recognition
778        that any/all grid variables can be easily copied (eg. w/NCO) from
779        the grid files into any of the other NetCDF files
780      - *always* output grid variables with MDSIO (this will eventually be
781        changed)
782      - output MNC grid file if useMNC is true
783    o every instance of _END_MASTER() has been found and replaced with
784      _END_MASTER( myThid ) in order to satisfy certain picky Sun
785      preprocessors
786    o re-arrange diagnostics pkg initialisation:
787     - allow each package to extend the available diagnostics list
788     - add some checking and fix small problems (multi-threaded, ...)
789     - new S/R diagnostics_fill (replace fill_diagnostics):
790       look through the short list of active diag. (instead of the long list)
791       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
792    
793    checkpoint57a_post
794    o this set of changes restores TAMC compatibility
795      tested for global_ocean.90x40x15 adjoint on trough
796      (what a pain)
797    
798    checkpoint57a_pre
799    o some modifs in tools/build_options for sunos
800    o call ctrl_pack for ctrl at end for optimcycle=0
801    
802    checkpoint57
803    o add horizontal bi-harmonic viscosity for vertical velocity
804      - new parameter viscA4W (defaults to viscA4)
805      - affects only non-hydrostatic code
806      - to be done: no-slip lateral boundary conditions
807    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
808    o implement Implicit Vertical advection for pTracers
809    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
810      (implemented also for implicit vertical diffusion & advection)
811    o OBCS: extend application of tracer open boundary conditions
812      to a strip beyond the boundary of width Olx/Oly
813    o add call monitor to TAF set of required calls (flow directives)
814      and include in natl_box_adjoint
815    o untangle a few ifdefs related to cost, ctrl, autodiff
816      untangel a few ALLOW_ECCO_OPTIMIZATION
817    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
818      (theta2, salt2 in ecco_cost_weights)
819    
820    checkpoint56c_post
821    o OBCS as control variables
822      - update ctrl_ad_diff.list, obcs_ad_diff.list
823      - remove balance of obcs controls from default
824      - fix index bug nobcs in ctrl_init
825      - fix dummy fields filen in ctrl_pack
826      - add dummy weights for obcs
827    o lsopt: comment out fort.94 output
828    o optim:
829      - remove unnecessary header files
830      - adjusted namelists
831      - add xerbla.F to Makefile
832    o exf:
833      - multiple modifications of exf_check_range
834      - unit change in exf_init_runoff from [m/year] to [m/s]
835    o mdsio:
836      - i/o-vector change debugLevel from debLevA to debLevB
837    
838    checkpoint56b_post
839    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
840      is called from DO_THE_MODEL_IO
841      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
842      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
843      - clean up PTRACERS_WRITE_TIMEAVE a little
844    o add another verification experiment that tests both the cfc-pkg and
845      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
846      reactive tendencies treated inline with regular timestepping
847    o testreport previously did a lousy job of comparing small numbers, so
848      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
849      implemented in the little c-progam tmp_cmpnum.c which is embedded in
850      testreport.
851    o ptracers_monitor: bug fix for MPI
852    
853    checkpoint56a_post
854    o GCHEM: finish reorganizating the package
855      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
856        (introduces another 3D-array for each passive tracer, but only if
857        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
858        gchemTendency is not needed because the timestep is done separately)
859      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
860      - GCHEM is now---more or less cleanly---separate from PTRACERS
861      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
862        so clear to me how that should be done in a general way.
863    o CFC: improve formatting of output in CFC_ATMOS
864    o PTRACERS:
865      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
866        that ALL experiments with ptracers enable can be checked. This makes
867        GCHEM_MONITOR obsolete.
868      - include a runtime parameter PTRACERS_monitorFreq that defaults to
869        monitorFreq
870      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
871    o add PTRACERS (PTR0[1-5]) to testreport output
872    o exf_check_range:
873      * default changed to .TRUE.
874      * will check values for niter0 if debLevA, every timestep if debLevB
875      * STOP in exf_check_range if 'out of range'
876      * range chosen generous to allow for potential extema
877      TBD: a version with stricter range
878           permitted range would be runtime parameters
879    o GMredi:
880      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
881      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
882      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
883    o GCHEM:
884      - move call to GCHEM_FORCING_SEP, so that it is now called before
885        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
886      - introduced a useGCHEM runtime flag and applied it everywhere.
887      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
888        this flag is now only visible within GCHEM-pkg routines.
889      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
890        be replaced by a 3D array that is computed before thermodynamics; for
891        this, the tracer ID iTracer had to be included into the parameter list
892        of ptracers_forcing
893      - set up forward_step to call gchem_forcing, that will replace
894        gchem_forcing_int in ptracers_forcing
895      - cleaning up
896    o small cleaning of exch2: remove files that are also in eesupp/src
897    
898    checkpoint56
899    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
900    o mnc: cleanup "full" files--fixes out-of-memory problem
901    o ECCO-GODAE
902      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
903      * fully merged and updated from SIO code
904        windstress sign change affects
905        - exf_inscal_[u/v]stress
906        - sign of xx_tau[u/v] adjustments
907        - signs in cost_scat
908      * ctrl_get_gen: avoid update of tau[u/v] for first few days
909      * natl_box_adjoint updated and compressed
910      * 2-level checkpoint switch added
911        (tested in EXP. 1 of natl_box_adjoint)
912      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
913    o SVD
914      * first complete, non-hacked version for SVD calculations
915      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
916        performed via direct access files admtlm_vector.it????
917        (via ctrl_[un]pack)
918      * optimcycle is used for ARPACK iteration counter
919        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
920      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
921        and add linear transforms where necessary
922      * controls are initial/final SST, SSS (can be extended; need to check
923        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
924    o mdsio: filename info to both stderr, stdout
925    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
926      from sign change
927    
928    checkpoint55j_post
929    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
930      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
931    o add consistent build directories and .cvsignore files to verification
932    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
933    o make all subroutines 30 or less characters in length for certain older
934      compilers to work (a thorough search only turns up two routines in
935      pkg/ptracers)
936    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
937      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
938    
939    checkpoint55i_post
940    o change arrays for total vertical diffusivity (2.D if explicit,
941      3.D if implicit) ; each ptracer uses its own background value.
942    o added mnc/NetCDF output capability to ocn_compon_interf
943      - added bits to verification/cpl_aim+ocn so that it can run on
944        ITRDA and other clusters without the mpirun "-wd" option
945    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
946      configuration
947    o give MNC the ability to create additional files rather than
948      exceeding a specified file size limit "MNC_MAX_FILESIZE"
949      - the default is just less than 2GB which is a practical limit
950        on many systems
951    o Compute the non-local term using either KPP vertical diffusivity (=default)
952       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
953    
954    checkpoint55h_post
955    o add verification test "vermix"
956    o remove all the *_ioinc flags and replace with the single global
957      outputTypesInclusive flag
958    o allow to set a vertical profile of vertical diffusivity for T & S
959    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
960    o useMNC moved from data.mnc to data.pkg
961    
962    checkpoint55g_post
963    o Renaming carbon AD experiments to comply with testreport conventions
964    o Updating adjoint of Held-Suarez hs94.1x64x5
965    o Fixing directives for non-ECCO forward_step, after ECCO directives
966      have been fixed to avoid recomp. of do_oceanic_phys
967      Works well for global_ocean.90x40x15,
968      but recomp. issue remains for carbon
969    o Updating adjoint output for natl_box_adjoint after
970      pkg/ecco has been modified (see taga c55d_post)
971    
972    checkpoint55f_post
973    o rename to timeave_init_fixed
974    
975    checkpoint55e_post
976    o some delicate re-shuffle of store directives to avoid one
977      extra call of do_oceanic_physics
978      affects ecco_the_main_loop.F, do_oceanic_physics.F
979      checkpoint_lev1_directives.h
980    o NB: this may break global_ocean adjoint temporarily,
981      but it is clear how to fix it. Will do later, need this now.
982    
983    checkpoint55d_post
984    o ECCO specific cost function terms (up-to-date with 1x1 runs)
985    o ecco_cost_weights is modified to 1x1 runs
986    o modifs to allow observations to be read in as
987      single file or yearly files
988    o enable to read exf forcing fields as either
989      single file or yearly files (flag useExfYearlyFields)
990    checkpoint55d_pre
991    
992    o switch between 2-level and 3-level checkpointing
993    o add ability of MNC to write local and "partial" (eg. 2D slices where
994      the full 3D field is never actually stored) arrays to NetCDF files
995      with the correct (that is, the complete multi-dimensional) set of
996      array indicies
997      - used in mom_vecinv() to write the diagFreq output
998      - tested (demonstrated) in verification/aim.5l_cs
999    o further mnc-ification
1000      - add verification/lab_sea to the list with mnc setups
1001      - fix undefined mnc v-names in cd_code
1002      - add kpp to mnc output (both snapshot and timeave)
1003    o non-hydrostatic code
1004      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1005        in calc_gw.F
1006      - defaults to viscAh
1007      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1008        friction or Leith) in non-hydrostatic mode, as long as there is
1009        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1010    o pkg/cost
1011      extend simple cost functions to treat time mean quantities
1012      (T,U,V) via cost_accumulate_state from cost_tile
1013    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1014        be 2 times larger than the minimum size the advection scheme requires.
1015        now get a perfect conservation of salt in advect_cs test-exp (updated)
1016    o GGL90 (Gaspar's TKE mixed layer)
1017      - add horizontal diffusion of TKE, requires exchanges in
1018        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1019        default. In OPA there is no horizontal diffusion of TKE but the
1020        mixing coefficients are computed from a horizontal average of TKE of
1021        6 points or so. I think that diffusion has a little more physical
1022        justification.
1023      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1024        was in vain)
1025      - mask tke-variable in ggl90_init
1026    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1027    o fix biharmonic diffusion on CS-grid.
1028    o more obcs stuff
1029      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1030        for reading boundary values. This routine is called from
1031        obcs_prescribe_read
1032      - updated obcs_check
1033      - changed sponge layer relaxation parameter units for days to seconds
1034      - turned off sponge layer by default
1035      - changed argument list of OBCS_CALC to myTime+deltaTclock
1036      - fixed about 35 bugs in obcs_external_fields_load
1037    
1038    checkpoint55c_post
1039    o obcs stuff
1040      - new runtime flags useOBCSprescribe, useOBCSbalance
1041      - re-arranged obcs_calc
1042      - moved exf_getobcs to obcs_prescibe_read
1043        obcs_prescibe_read is called after ORLANSKI stuff
1044        and independent of it (executable can contain all).
1045      - updated obcs_check
1046      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1047        These may be necessary only if tangential velocities are
1048        prescribed at OB, not sure, needs testing.
1049    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1050      which simplifies the calls and passes the ifc check-bounds test
1051    
1052    checkpoint55b_post
1053    o add a 2D scalar, Z location, exchange_2 routine.
1054    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1055      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1056      affects advect_cs results (for the wrong reason): update output.txt
1057    o use a more standard discretization for biharmonic viscosity ;
1058     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1059      affects results of dome set-up: update output.txt
1060    o fix gad_advection.F (CubedSphere part), back to version 1.23
1061    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1062    
1063    checkpoint55a_post
1064    o merged code to
1065      * prescribe/read time-dependent open boundaries
1066        (works in conjunction with exf, cal)
1067      * sponge layer code for open boundaries
1068      * each boundary N/S/E/W now has its own CPP option
1069        (healthy for the adjoint)
1070    
1071    checkpoint55
1072    o up-to-date adjoint of previous breaks
1073      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1074      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1075      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1076      - carbon: * remove tr1-related adjoint verification
1077                * add ptracer as control variable
1078    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1079      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1080    
1081    checkpoint54f_post
1082    o in verification/carbin/ remove experiment related to
1083      ALLOW_PASSIVE_TRACER (array tr1 etc)
1084      code_ad/ input_ad/ results_ad
1085    
1086    o add two new packages
1087      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1088        + subject to optimization (memory)
1089      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1090        + subject to reordering (many GOTOs in the original code)
1091        + so far opps is called for every (i,j) point, and then operates in
1092          the vertical; one may want to reorder the scheme in order operate in
1093          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1094          fields)
1095    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1096      - all verification tests compile and run with linux_ia32_g77
1097      - defaults are compatible with current input files--nothing
1098        should change if you were not previously using MNC
1099      - MNC output has been added in numerous places (eg. timeave)
1100        but there are still a few writes not yet do-able with MNC
1101        (this is in progress)
1102      - flags now allow for either/or/both use of MDSIO and MNC and
1103        documentation will soon follow
1104      - numerous small formatting cleanups for ProTeX
1105    o add version info (via BUILD_INFO.h) to MNC and stdout
1106    
1107    checkpoint54e_post
1108    o add two new packages
1109      - pp81 (Packanowski and Philander, 1981), Richardson number and
1110        stratification dependent mixing
1111      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1112      - these scheme operate in a similar manner as KPP (without ghat, of
1113        course), however there is only one diffusivity that is used for both
1114        temperature and salinity (and passive tracers)ç
1115    o add offline package
1116    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1117      provided by Stephanie Dutkiewicz
1118    o genmake2: add ability to search for C compilers and cleanup test output
1119      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1120    
1121    checkpoint54d_post
1122    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1123    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1124      leading to additional shift by 5 days each year of integration
1125       (i.e. leading to considerable offset over the years)
1126    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1127    o start with no AB and no initial filtering (staggerTimeStep):
1128      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1129    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1130      (external loading & cpl import/export stay in forward_step.F)
1131    o update coupling interface to work with new staggerTimeStep
1132    o change MDSIO ptracers_pickup.
1133    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1134    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1135    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1136    
1137    checkpoint54c_post
1138    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1139      this affects (truncation error) output.txt of test-exp:
1140       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1141    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1142    o change Qnet to always be the net heat flux, (+upward).
1143      affects (truncation error) output of natl_box exp.: updated
1144    o define the max number of passive tracers in PTRACERS_SIZE.h
1145    o start to test mnc routinely in exp0
1146    o add sea-ice loading (sIceLoad) as a new forcing field.
1147    
1148    checkpoint54b_post
1149    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1150       impressive on Altix and Opteron systems)
1151    o diagnostics can now write NetCDF files through the mnc package
1152    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1153    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1154    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1155      affects (truncation error) output of lab_sea & natl_box exp.: updated
1156    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1157    
1158    checkpoint54a_post
1159    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1160    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1161    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1162    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1163      + internal_wave (shift in writing cg2d_ini_res)
1164    checkpoint54a_pre
1165    
1166    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1167      - modified verification/lab_sea and natl_box_adjoint accordingly
1168    
1169    checkpoint54
1170    checkpoint53g_post
1171    o prepare splitting of thermodynamics: store convect.counter in common block
1172    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1173      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1174    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1175    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1176    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1177    o restore adjointability
1178    
1179    checkpoint53f_post
1180    o modifications that affect AIM experiment results (update output.txt):
1181      - no advection of S at top interface Nr (pkg/generic_advdiff)
1182      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1183    o AIM pkg:
1184      - include stability function into surf.Flux derivative relative to Tsurf
1185      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1186    
1187    checkpoint53e_post
1188    o merged cylindrical coord configuration
1189    o added rotating_tank experiment
1190    checkpoint53e_pre
1191    
1192    checkpoint53d_post
1193    o faulks upgraded: re-generate output.txt that have changed:
1194       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1195    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1196    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1197    o added Sadourny discretization of Coriolis
1198      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1199      - re-enabled use of omega3 (useAbsVorticity)
1200    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1201      vector-invariant equations
1202      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1203    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1204      hopefully without new bugs
1205      - still to do: biharmonic friction for non-hydrostatic w
1206    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1207    o regenerated output for global_ocean_ebm (using -ieee)
1208    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1209      of mom_common/
1210      - simple re-arrangement of instructions within computing loop
1211    checkpoint53d_pre
1212    
1213    checkpoint53c_post
1214    o new version of coupler for AIM+thSIce and Ocean models
1215     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1216     - land: change Evaporation of snow
1217     - aim with thSIce: fix bug in snow-precip.
1218    o changes to calc_gw.F
1219     - bug fix for w^2 term near the bottom boundary
1220     - (hopefully) improve the lateral slip boundary condtions for use with
1221        partial/looped cells
1222      - because the bug fix changes two verification experiments anyway (exp5
1223        and plume on slope), change the lateral boundary condition from half slip
1224        to the value of no_slip_sides
1225    o ebm package wasnt quite up to the parallel task. Fixed that.
1226    o Adjoint of EBM package + verification
1227      * TLM OK
1228      * ADM not sufficient accuracy yet (needs further testing)
1229    
1230    checkpoint53b_post
1231    o Commiting new energy balance model to repository
1232      * package is pkg/ebm
1233      * verif. is verification/global_ocean_ebm
1234      * references are in ebm_driver.F
1235    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1236    C        Global thermohaline circulation. Part I:
1237    C        Sensitivity to atmospheric moisture transport.
1238    C        J. Climate 12(1), 71-82
1239    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1240    C        Global thermohaline circulation. Part II:
1241    C        Sensitivity with interactive transport.
1242    C        J. Climate 12(1), 83-91
1243    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1244    C        Destabilization of the thermohaline circulation
1245    C        by atmospheric eddy transports.
1246    C        J. Climate 7(12), 1870-1882
1247    o Will need long integration testing.
1248    checkpoint53b_pre
1249    
1250    o created pkg/mom_common in preparation for variable viscosity code
1251    o renamed and split ini_mnc_io
1252    o pkg/land: only liquid water can diffuse or run-off
1253    o AIM using land: soil wetness availability account for snow
1254    o added printMapIncludesZeros to EEPARMS namelist
1255    
1256    checkpoint53a_post
1257    o restore TAMC compatiility for exf_constants.h
1258      (no usage of _d in .h)
1259    o Additional storing in KPP in an attempt to fix
1260      TAMC problem with adjoint of KPP code.
1261      (no success...)
1262      Identical code works fine with TAF.
1263    o Fixed verification/natl_box_adjoint experiments.
1264      Initial conditions for Experiments 4 and 5 are now
1265      set to "SEAICE_initialHEFF=0", which is more reasonable,
1266      and hence gives results closer to that of Experiment 2.
1267      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1268    
1269    checkpoint53
1270    o stable checkpoint with up to date adjoint
1271      TLM tests only run for 1st grdchk at the moment. Its unclear if
1272      this is a code problem or a problem with resetting code for g_
1273      variables that is being autogenerated wrong.
1274      Otherwise:
1275       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1276       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1277         are both still in chaos following their security messes.
1278    
1279    checkpoint52n_post
1280    o various build (mostly genmake2) changes including:
1281      - ability to build/run more easily within Cygwin and MacOS X
1282      - more complicated Makefiles with a stronger dependence on Gnu Make
1283    o pkg/seaice modifications
1284      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1285        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1286        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1287      - changed proxy for geostrophic velocity and updated
1288        verification/lab_sea/results/* accordingly
1289      - removed ADI dynamic solver from pkg/seaice
1290      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1291        they caused a segmentation fault under certain circumstances
1292      - removed unused field WATR
1293    o bug fix in exf-package:
1294      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1295         now reflect that.
1296    o small fixes in the cal-package:
1297      - set reference date to first of January for the 'model'-calendar
1298      - failing of cal_CheckDate in cal_FullDate now actually results in a
1299        warning
1300    o small modifications in exf-package to increase flexibility:
1301      - change climtempfreeze from a constant to a runtime parameter that
1302        is specified in data.exf_clim (default = -1.9)
1303      - introduce runtime parameter windstressmax (default = 2.0) that is
1304        specified in data.exf
1305    o fix in pkg/thsice:
1306      - update Evap (Tsf changes) to be consistent with Latent heat flux
1307      - maintain snow precipitation unchanged (even if Tsf >=0).
1308     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1309    
1310    checkpoint52m_post
1311    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1312      this does not change any of the results, because myIter=0 in swfrac always
1313      lead to jwtype=2 (the default anyway), but the call makes little sense
1314      as a default
1315    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1316    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1317      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1318    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1319    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1320    o extending useSingleCpuIO option to work with new exch2 I/O format
1321      - old-style, missing-tile I/O is still accessible by defining CPP
1322        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1323    o monitor package can write to NetCDF files and/or STDOUT
1324    o fix re-definition bug in MNC_GRID_INIT_ALL()
1325    o doc/api_reference added
1326      - a framework for building an API Reference Manual using all
1327        the "protex" comments embedded in the code
1328      - see pkg/generic_advdiff, pkg/mnc for examples
1329    o MNC:
1330      - make myThid the last argument for all subroutines
1331      - new default for the grid files: NO halos
1332      - add useMNC and other run-time flags
1333      - separate per-file-group handling of the unlimited dimension
1334      - early initialization of MNC w/ flags read at the eeboot stage
1335        and lookup tables set in initialize_fixed
1336      - write all MNC output to a freshly-created directory
1337    o thermodynamics sea-ice (thsice) is now tested with testreport.
1338    o test exp. advect_cs: use the standard cs32 grid ; update output.
1339    o Added functionality to grdchk:
1340      pick global i,j,k position (or nearest wet) where to perform check.
1341    
1342    checkpoint52l_post
1343    o new land formulation:
1344      a) use ground enthalpy as prognostic variable to ensure exact
1345         energy conservation.
1346      b) account for water temperature and for latent heat of freezing
1347         in all processes (rain, run-off, ground storage)
1348      c) compute surface and ground temperature implicitly.
1349    o aim_v23 modification for new land model:
1350      a) Treat separately land / ocean / sea-ice surface fluxes
1351         to allow implicit computation of land & sea-ice surface temp.
1352      b) add snow precipitation.
1353    checkpoint52l_pre
1354    
1355    o fix problem (when 1 tile is empty) in min/max monitor.
1356    o fix bug in timeAve (u,vZetatave in common block)
1357    o no restoring terms under ice for pkg/seaice
1358    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1359    o bug fix for pkg/seaice pickups
1360    o change MNC call locations and add coordinate attributes
1361    o mask vorticity at the corner ; affects global_ocean.cs output
1362    o fix ini_curvilinear_grid ; test CS experiments with mpi
1363    o aim.5l_cs: modify sea-ice fraction input file ; update output
1364    o exf: Adding simple range check routine for exf fields after read
1365    
1366    checkpoint52k_post
1367    o removed top-level directory "diags"
1368      - we migrated these functions to pkg/timeave a long time ago
1369    o fixed bug introduced in pkg/monitor
1370    o accuracy ctrlprec = 32 insuffient for gradient checks using
1371      averaged fields (I/O via cost_averages)
1372      -> use ctrl.h in active_file*.F to control I/O precision.
1373    o paramter list of CALL ADTHE_MAIN_LOOP
1374    o added initial do_the_model_io to ecco
1375    o set all ...Freq to zero after cost_final
1376      taveFreq, dumpFreq, pChkptFreq
1377    o MAIN and ECCO differentiability restored
1378    
1379    checkpoint52j_post
1380    o fix nchklev in tamc.h for global_ocean...
1381    o Bringing flow and store directives up-to-date
1382    o Really weird thing!
1383      call do_the_model_io from the_main_loop with parameters
1384      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1385      TAF places a faulty re-call of initialise_varia
1386      after cost_final call which should not be there!
1387    checkpoint52j_pre
1388    
1389    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1390      error messages
1391    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1392    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1393      debug output
1394    o modfied mdsio_writefield.F to handle non-global files under exch2
1395    o update AIM Cubed-Sphere exp (aim.5l_cs):
1396      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1397    o update AIM Equatorial Channel exp:
1398      use standard aim_v23 pkg and change the SST fields to be more realistic.
1399    o globalFile now works with exch2
1400    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1401      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1402    o limit timeave output for hi-res integrations
1403    
1404    checkpoint52i_post
1405    o removed CPP_EEOPTIONS.h from verification/*/code
1406    o updated the tiling for global_ocean_pressure
1407    checkpoint52i_pre
1408    
1409    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1410      the old pkg/aim).
1411    
1412    checkpoint52h_pre
1413    o shortened offending lines in exch2_send_rx?.template
1414    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1415    o genmake2: add build & execute test for NetCDF code
1416    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1417      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1418    o added useSingleCPUIO flag to monitor.F and mon_out.F
1419    o added temporary hack for sea-ice dynamics on the cube:
1420      metric terms are ignored and it is assumed that
1421      there is no sea-ice on cube faces 1, 2, 4, and 5.
1422    
1423    checkpoint52f_post
1424    o added exch2 cube routines to pkg/exch2
1425    o modified hs94.cs-32x32x5 to use it
1426    o added new grid files to hs94.cs-32x32x5
1427    checkpoint52f_pre
1428    
1429    checkpoint52e_post
1430    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1431      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1432    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1433      to work with implicit vertical advection and AB ;
1434    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1435    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1436     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1437    checkpoint52e_pre
1438    
1439    o fix bug in impldiff when Nr=1 or Nr=2.
1440    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1441    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1442    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1443      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1444    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1445    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1446    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1447    
1448    checkpoint52d_post
1449    o re-tiled many expts to allow comparison in multi-processor mode
1450      - updated output accordingly
1451      - changed hs94.128x64x5 to use intial T from file rather than use the
1452        random number generator
1453    o add infrastructure in model routines for fizhi and gridalt packages
1454    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1455    o changes to permit hi-res, cubed-sphere, configuration
1456      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1457      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1458      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1459        of surface winds for the cube
1460      (A verification experiment, based on global_ocean.cs32x15, but with
1461       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1462       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1463       complete with example surface forcing files and matlab scripts to look
1464       at the output and compare it with that of global_ocean.cs32x15.)
1465    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1466       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1467       to conform to the common rule.
1468    o check-in the first version of the coupler + interfaces for multi-components
1469       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1470       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1471       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1472       - ocean and atmos. share the same horizontal grid (no interpolation).
1473       - exchanges between component and coupler is done in forward_step
1474    o new verification experiment, cpl_aim+ocn:
1475       coupled ocean - AIM atmosphere on cs32 grid.
1476    
1477    checkpoint52d_pre
1478    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1479    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1480    
1481    checkpoint52c_post
1482    o Fixing OPTIONS files for use of exf:
1483      - ALLOW_ECCO not needed
1484      - ECCO_CPPOPTIONS.h should not be included from
1485        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1486        as has been the case in the past
1487      - All cal/exf related options are currently set in
1488        single header file. Should remain so until we
1489        agree on a consistent new policy.
1490    o Removed all CPP options for cal package.
1491      cal has no more CPP options.
1492    o modified STOREs in GAD_ADVECTION
1493    o corrected key comp. for passkey
1494    
1495    checkpoint52b_post
1496    o new version: "thsice" of thermodynamic sea-ice pkg:
1497     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1498     - modify fluxes but do not change theta directly;
1499     - light cleaning of bulk_force pkg (still needed with thsice).
1500     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1501       + output_thsice.txt to test thsice & bulk_force pkgs.
1502    o put back grid & coriolis monitor output.
1503    checkpoint52b_pre
1504    
1505    o call "do_the_model_io" at the beginning (=> dump initial state)
1506    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1507    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1508      (need info on NUMBER_OF_PTRACERS)
1509    o missing PTRACERS headers in some routines
1510    o default tamc.h in pkg/autodiff supposed to crash
1511      to ensure proper customization
1512    
1513    checkpoint52a_post
1514    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1515      - moved surfaceTendencyTice from pkg/seaice to main code
1516      - subroutine FREEZE_SURFACE now limits only surface temperature
1517        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1518        => new output.txt for global_ocean.cs32x15 & global_with_exf
1519      - keep the old version of FREEZE for backward compatibility;
1520        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1521      - corresponding modifs for TAF directives
1522    o added surface flux output variables to TIMEAVE_STATVARS
1523    o time-averaged output for pkg/ptracers
1524    o fix problem with ECCO-related divided adjoint
1525      snapshot file was missing some ad-variables,
1526      but no warning issued by TAF
1527    
1528    checkpoint52a_pre
1529    o some bug fixes for #undef REAL4_IS_SLOW
1530    
1531    checkpoint52 = ecco_c52_e35
1532    o after testing adjoints of checkpoint51u_post
1533    
1534    checkpoint51u_post
1535    o this is the post-merge tag of the ecco-branch
1536      (needs another clean checkout and re-testing)
1537    o various natl_box_adjoint configs and results
1538      but no input fields
1539    o obcs adjoint not yet merged!
1540    o adding ECCO global 1x1 and 2x2 degree configs
1541    o updated/extended some store directives for seaice
1542    o pkg/ecco now containes ecco-specific part of cost function
1543    o top level routines the_main_loop, forward_step
1544      supersede those in model/src/
1545      previous input data.cost now in data.ecco
1546      (new namelist ecco_cost_nml)
1547    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1548    
1549    checkpoint51t_post
1550    o this is the pre-merge tag of the ecco-branch
1551    
1552    checkpoint51s_post
1553    o cleanup: removed various obsolete #define-s
1554    o pkg/grdchk
1555      - renamed 'ph-grd 3' to 'grad-res'
1556      - merged from ecco-branch
1557        (remaining bug fixes for obcs gradient checks)
1558      - additional high-precision output for testreport
1559        (grep for 'precision_grdchk_result')
1560    
1561    checkpoint51r_post
1562    o cleaned up or removed CPP_OPTIONS.h files
1563    o updated results for some of the tests to reflect the new
1564      optfiles (-ieee: -O0 instead of -O3)
1565    
1566    checkpoint51q_post
1567    o cd_code:
1568      - moved cd_scheme.F -> cd_code_scheme.F
1569      - separate read_checkpoint from cd_code_ini_vars.F
1570      - separated cd_code part from write_checkpoint
1571      - updated AD_SOURCE, generated .flow
1572      - added CD_CODE_VARS.h to the_main_loop
1573      - Moving cd_code specific store dir.s to pkg/cd_code
1574    o ctrl package totally restructured
1575      - pack/unpack now optional and decoupled from
1576        xx_/adxx_ I/O
1577      - ctrl_pack/unpack cleaned
1578        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1579      - confined inclusion of AD_CONFIG.h to where necessary.
1580    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1581    
1582    checkpoint51p_post
1583    o create initial cd_code package
1584      - WARNING: the initialization of fields within packages
1585        is broken because INI_FIELDS (where READ_CHECKPOINT is
1586        called) is called *before* PACKAGES_INIT_VARIABLES.
1587        This seems to be backwards since
1588        1) its important to initially zero the entire field including
1589           the "halo" region
1590        2) zeroing needs to be done *before* reading pickup info
1591           and the pickup call might or might not happen in any
1592           particular run
1593      - this needs an overhaul for R2
1594    o cleanup verification/*/code/GMREDI_OPTIONS.h
1595    o cleanup testreport
1596    
1597    checkpoint51o_post
1598    o bringing AD-related verif's up to date with genmake2
1599      - carbon/
1600      - global_ocean.90x40x15/
1601      - hs.94.1x64x5/
1602      - (front_relax/ )
1603    o (more) consistent directory structure for AD-related verif.'s
1604    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1605    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1606    o bug fix in find_alpha.F for MDJWF:
1607      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1608        change rho -> rho-rhoConst
1609      - replace call find_rho to find_rhonum
1610    o initialisation of rFlx extended to full array (required by TAF)
1611      and shifted to thermodynamics
1612    o removed PTRACERS.h in ptracers routine
1613    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1614    o Correcting initialisations for fVerU, fVerV.
1615    o helping TAF to recognize dependency on kUp for
1616      fVerU, fVerV
1617    o Replacing delZ by delR in pkg/ctrl/
1618    checkpoint51o_pre
1619    
1620    o undid all of cp51 pending some cleanups and discussion
1621    o added the [#include "AD_CONFIG.h"] statement to all files that need
1622       it for adjoint/tl #defines
1623     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1624     o removed tools/genmake since it no longer works
1625    
1626    checkpoint51n_post
1627    o modifications to make FREEZE flux visible to pkg/kpp
1628      - moved surfaceTendencyTice from pkg/seaice to main code
1629      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1630      - subroutine FREEZE now limits only surface temperature
1631        (this means new output.txt for global_ocean.90x40x15,
1632         global_ocean.cs32x15, and global_with_exf)
1633    o added surface flux output variables to TIMEAVE_STATVARS
1634    
1635    checkpoint51n_pre
1636    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1637    o added [#include "AD_CONFIG.h"] to all files that use the following
1638      defines:
1639      - ALLOW_ADJOINT_RUN
1640      - ALLOW_TANGENTLINEAR_RUN
1641      - ALLOW_ECCO_OPTIMIZATION
1642    
1643    checkpoint51m_post
1644    o incorporating changes to get TAMC/TAF working in genmake2
1645      - added new TAMC/TAF targets to the Makefile
1646      - various cleanups related to package handling
1647      - these changes should have no impact on the forward model
1648    
1649    checkpoint51l_post
1650    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1651     - faster algorithm for cal_addtime.F
1652     - higher precision arithmetic, where needed
1653     - pkg/exf *startdate variables changed from calendar date to
1654       model integration time
1655    
1656    checkpoint51l_pre
1657    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1658    o enable to apply restoring on S & T only in a latitude band.
1659    o update output (external_forcing_surf modif. change truncation errors)
1660       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1661    
1662    checkpoint51k_post
1663    o change default to: useNHMTerms=.FALSE.
1664     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1665       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1666     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1667        exp1, ideal_2D_oce
1668     - change data file of oceanic exp (leave the results unchanged for now)
1669       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1670    o set gravitySign automatically according to the vertical coordinate used
1671      (and change sign: back to "logical" value: +1 when R increases downward)
1672    o added an include barrier to the default CPP_OPTIONS.h and
1673      removed the #include "PACKAGES_CONFIG.h" from it
1674    o fix a bug in mom_fluxform (from chk51j_post)
1675    
1676    checkpoint51j_post
1677    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1678    o adjusted some flow directives (dynamics, thermodynamics)
1679    o added cubed-sphere case to test cost function
1680    o heckpoint_lev?_directives.h now include
1681      pkg-specific directives, whenever those are enabled.
1682    o Moving pkg-specific flow directives to corresponding pkg
1683      Moving pkg-specific differentiation list to corresponding pkg
1684      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1685      ---> conventions are
1686           - pkg_ad.flow
1687           - pkg_ad_diff.list
1688           - pkg_ad_check_lev?_dir.h
1689    
1690    checkpoint51i_post
1691    o merge of the branch-genmake2
1692      - knowingly breaks the older genmake
1693      - automatic generation of all ALLOW_${PKG_NAME} defines
1694      - new testreport supersedes older testscript
1695    o large number of package inclusion and header cleanups
1696    checkpoint51i_pre
1697    
1698    o new output for adjoin of global ocean vector invariant
1699    o fix for checkpoint of thermodynamic seaice and bulk_force
1700    o Steph gchem various cleanups
1701    
1702    checkpoint 51h_pre
1703    o fixed some single quotes
1704    o modify gchem pkg to be more versatile
1705    o modifications to clean up dic pkg
1706    o add pkg/cfc
1707    
1708    checkpoint51g_post
1709    o provide links for ARPACK and ADM*TLM
1710    o start removing verification/vero/
1711    o update AD-related stuff
1712      (in particular some IF-statements in model/src/ routines)
1713    o adding to verification/global_ocean.90x40x15/ adjoint of
1714      vector invariant setup
1715    
1716    checkpoint51f_post
1717    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1718    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1719      of tracer Green's fucntions for ocean inversion project.
1720    
1721    checkpoint51f_pre
1722    o Added on-the-fly spatial interpolation capability
1723        "USE_EXF_INTERPOLATION" to pkg/exf.
1724      - This is a temporary Cartesian-grid hack until
1725        the super-duper ESMF coupler becomes available.
1726      - See verification/global_with_exf/README for usage example.
1727      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1728        flags and modified pkg/seaice accordingly.
1729    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1730        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1731        non-local transport term.
1732    
1733    checkpoint51e_post
1734    o pkg/mom_vecinv:
1735      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1736      - add time-ave diagnostic of vorticity advection.
1737    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1738    o atmospheric geopotential: - include water vapor effect;
1739                                - use p^kappa in p* scaling.
1740    o land pkg: read initial state from files.
1741    o AIM : add stratospheric drag in the upper level
1742    
1743    checkpoint51d_post
1744    o change function ILNBLNK (=> last non-blank char.) to return zero
1745      (instead of the string length) when the string. char is empty
1746    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1747    o modif's to restore TAMC compatibility
1748      - avoid "_d" constructs in PARAMETER declarations
1749      - avoid interrupting lines by comment lines
1750    o Use cluster local disks for purely local I/O
1751      vs. globally visible disks needed for ctrl stuff
1752      (merged from ecco-branch)
1753      - new active_file_loc... and mdsio_..._loc routines
1754      - affected packages: autodiff, ctrl, grdchk, mdsio
1755    
1756    checkpoint51c_post
1757    o introducing integer flag debugLevel
1758      - debLevZero: suppress all output
1759      - debLevA: standard
1760      - debLevB: equivalent to current debugMode=.TRUE.
1761    o introducing pathname variable mdsioLocalDir for mdsio
1762      that can be specified at runtime
1763      (relevant for cluster I/O to local disk)
1764    `
1765    >>>checkpoint51b_post
1766    adjoint of ptracers
1767    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1768    o extended state in checkpoint_lev?, etc.
1769    o alternative ctrl/cost with tr1 or ptracer
1770    o new comlev1_bibj_ptracers
1771    o new ptracers.flow
1772    o made ptracers_forcing same as external_forcing_s
1773    o added verification for adjoint with ptracers
1774      - adm. grdchk fail so far
1775      - tlm. grdchk OK
1776      - checked tapelev/comlev recomputations: OK
1777    <<<checkpoint51b_pre
1778    
1779    checkpoint51a_post
1780    o added code for biogeochemistry package
1781      - new pkgs: dic, gchem
1782      - new subroutine in ptracers
1783    o modify code for biogeo packages
1784      - in model/src and pkg/ptracers
1785    
1786    checkpoint51
1787    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1788      - autodiff, ctrl, exf, grdchk, seaice
1789      kept separate packages
1790      - cost, ecco, obcs
1791    o updating verification/internal_wave, verification/lab_sea
1792      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1793    
1794    checkpoint50i_post
1795    o Preparing next differentiable checkpoint and sync
1796      of MAIN vs. ecco-branch
1797      - 1st step: this one is differentiable
1798      - 2nd step: next(! not this) checkpoint will have updated packages
1799                  from ecco-branch)
1800    
1801    checkpoint50h_post
1802    o new package "land": provide surface BC for AIM.
1803    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1804    o AIM: use true log-P extrapolation for near surface temp (= as in
1805        F.Molteni paper) ; update aim.5l_cs output.
1806    o New variable in PARM03 for more flexible pickups
1807    o somewhat cleaned package initialisation sequence for
1808      ctrl/ cost/ ecco/ in packages_... routines
1809    
1810    checkpoint50g_post
1811    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1812      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1813      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1814        made the default because of faster convergence than ADI
1815    
1816    checkpoint50f_post
1817    o exf totally restructured
1818      - replaced all exf_set_ routines by one generic exf_set_gen.F
1819        and made sure it's still differentiable
1820      - split exf_getffields.F into new exf_bulkformulae.F
1821      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1822      - updated adjoint/makefile and relevant verif. accordingly
1823    
1824    checkpoint50f_pre
1825     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1826          + change Evap over land. (update aim.5l_cs output)
1827     o added missing .cvsignores and made uniform across expts
1828     o changed configuration of tidal_basin_2d expt
1829     o added pkg/debug functions for tracing code in fatal crashes
1830     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1831     o new fn in pkg/monitor to stop model if solution grows too big
1832     o removed lots of single quotes from comments
1833    
1834    checkpoint50e_post
1835    o make KPP work with PTRACERS
1836     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1837       nearly a copy of kpp_transport_s
1838     - there is no analogue to SurfaceTendencyS, so I have to use
1839       gPtr(of the surface layer) instead
1840    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1841    checkpoint50e_pre
1842    
1843    checkpoint50d_post
1844    o change kpp output from multiple-record state files to single-record state
1845      files analogous to write_state.F
1846    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1847      analogous to the cg2d-related output.
1848    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1849      so that writing to internal file fn (with length 512) fails.
1850    checkpoint50d_pre
1851    
1852    checkpoint50c_post
1853    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1854    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1855    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1856    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1857    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1858    
1859    checkpoint50c_pre
1860    Merging from release1_p13:
1861    o bug fix for pkg/seaice dynamic solver
1862    o Added SEAICE_initialHEFF to pkg/seaice
1863    
1864    checkpoint50b_post
1865    o store u*,v* in gU,V instead of in guNm1,gvNm1
1866    o in order to put the momForcing out of the Adams-Bashforth:
1867      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1868      to timestep.F
1869    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1870    o re-generate output for highly sensitive test-exp:
1871       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1872    
1873    checkpoint50b_pre
1874    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1875    o corrected CPP option mismatch in exf_Bulk... functions for case
1876      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1877    
1878    checkpoint50a_post
1879    o Bug fix for merging between c50 and KPP.
1880      ikey was passed from thermodynamics to kpp_calc via
1881      common block rather than being recomputed in kpp_calc,
1882      in contradiction with new key itdkey.
1883      New key ikppkey created, and tamc.h headers updated.
1884    
1885    checkpoint50
1886    - 2nd step of merge with ecco-branch:
1887      merge changes in ecco-branch back into main trunk
1888    - bug fix in find_alpha
1889    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1890    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1891    - merged some sliced AD support routines
1892    
1893    checkpoint49
1894    merged from ecco-branch:
1895    o exf:
1896      - Enable initialisation of forcing fields to constant
1897        (runtime) values.
1898      - in exf_getffields.F
1899        Reduce i-/j-loop to interior domain, discarding overlaps.
1900        That also fixes wrong TAF-key computations for key_1, key_2
1901        with bulf formulae.
1902      - exf_init.F modify #ifdef for exf_init_evap
1903      - exf_getffieldrec.F, ctrl_getrec.F
1904        The following INT-usages are not safe:
1905          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1906          fldcount = int(fldsecs/fldperiod) + 1
1907        and were modified.
1908    o autodiff: checkpoint_lev...
1909      - updated storing for bulk formulae (some arrays were missing)
1910      - added state for seaice package
1911      - synchronized with main branch
1912    o DIVA:
1913      Modif.s in
1914      - the_main_loop.F
1915      - the_model_main.F
1916      and added cost_final_restore.F cost_final_store.F
1917      o With these changes, it is possible to fully separate
1918        the first forward run to compute the cost function (mdthe_main_loop)
1919        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1920        into separate model executions.
1921        This enables better tuning of DIVA to given queue sizes.
1922      o Loss of cost function value in consecutive DIVA runs is
1923        fixed by storing to 'costfinal' file.
1924      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1925        beginning/end of adjoint integration is accounted for.
1926      The current changes apply to TAF-1.4.26.
1927      TAF has one remaining bug, requiring one manual change
1928      (see MITgcm manual).
1929    o cal: synchronized between MAIN and ecco-branch
1930    
1931    checkpoint48i_post
1932    o Changes to restore differentiability of code w.r.t. previous tag
1933      (mostly adding new routines to make list and replacing
1934      pressure by totPhiHyd).
1935    o Updated and merged grdchk package
1936      - has both ADM and TLM checks
1937      - works for single- and multi-proc.
1938      - output cleaned
1939      - worked successfully for parallel DIVA
1940    o genmake:
1941      - Adding -platform=SP4
1942      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1943    o Modif. for DIVA:
1944      ctrl_unpack should not be called in intermediate DIVA interval.
1945      (similar thing would apply for active files such as
1946      tbar, sbar, psbar, which should not be reinitialised;
1947      only relevant for ecco-branch)
1948    
1949    checkpoint48h_post
1950    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1951    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1952    o Added SEAICE_initialHEFF to pkg/seaice
1953    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1954    
1955    checkpoint48g_post
1956    --- EOS:
1957    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1958      store total Potential in totPhyHyd for diagnostics & EOS.
1959    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1960    --- Pressure/geopotential gradient:
1961    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1962    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1963      ( changes results of global_ocean_pressure )
1964    o NLFS + z-coord.: add eta*Rho' contribution.
1965    o accurate phiHyd when using interface-W at the middle between 2 centers
1966     ( changes results of ideal_2D_oce )
1967    o includes r* 2nd term in potential gradient.
1968    
1969    checkpoint48f_post
1970    Merging from release1_p12:
1971    o Modifications for using pkg/exf with pkg/seaice
1972      - improved description of the various forcing configurations
1973      - added basic radiation bulk formulae to pkg/exf
1974      - units/sign fix for evap computation in exf_getffields.F
1975      - updated verification/global_with_exf/results/output.txt
1976    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1977      (SBO) core products, including oceanic mass, center-of-mass,
1978      angular, and bottom pressure (see pkg/sbo/README.sbo).
1979    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1980      to avoid negative values in shallow regions.
1981      - updated verification/natl_box/results/output.txt
1982      - updated verification/lab_sea/results/output.txt
1983    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1984    o Added useSingleCpuIO option (see PARAMS.h).
1985    o Updated useSingleCpuIO option in mdsio_writefield.F to
1986      work with multi-field files, e.g., for single-file pickup.
1987    o pkg/seaice:
1988      - bug fix in growth.F: QNET for no shortwave case
1989      - added HeffFile for specifying initial sea-ice thickness
1990      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1991    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1992      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1993    o pkg/seaice:
1994      - adjoint-friendly modifications
1995      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1996    
1997    checkpoint48e_post
1998    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1999    o dynamics: change definition of computational domain & adapt mom_fluxform
2000      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2001    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2002        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2003        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2004        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2005        inverted_barometer solid-body.cs-32x32x1
2006      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2007    
2008    checkpoint48d_post
2009    o in preparation for r*:
2010     a) use pre-computed gradient of hydrostatic potential:
2011        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2012     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2013        => affects results of glob_oce_pressure (different truncation error)  
2014      update output.txt of ideal_2D_oce & global_ocean_pressure
2015    
2016    checkpoint48d_pre
2017    o in preparation for r*:
2018      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2019      pass the 2 comp. of the grad. as arguments to momentum S/R.
2020      but for the moment, only used if it does not change the results.
2021    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2022    
2023    checkpoint48c_post
2024    Modifications in treatment of initial flux forcing controls
2025    to avoid extra storing of flux fields.
2026    
2027    checkpoint48c_pre
2028    o Added tidal_basin_2d experiment (currently 1D!)
2029    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2030    
2031    checkpoint48b_post
2032    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2033     (modification to pressure gradient not yet implemented)
2034    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2035      (for U & V) that are used for vertical advection of momentum.
2036    
2037    checkpoint48a_post
2038    o In preparation for r*, use temp. array to compute vertical transport
2039       in flux-form momentum pkg. => change results of few test-exp.
2040      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2041                        lab_sea, natl_box & plume_on_slope
2042    
2043    checkpoint48
2044    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2045    
2046    checkpoint47j_post
2047    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2048    o moved adexch from forward_step to addummy_in_stepping
2049    o added exch in ctrl_map_...
2050    o aveFreq.=0. at end of cost_final to avoid overwrite in
2051      reverse checkpointing loop
2052    o Yet more changes in gmredi:
2053      * adgmredi_calc_tensor
2054        avoiding all recomputation of gmredi_slope_limit
2055      * adgmredi_x/y/rtransport
2056        added flag for excessive storing to avoid recomp. of
2057        u/v/rtans, dTdx/y/z
2058        -> this is not really necessary and very memory-consuming
2059      * adgmredi_slope_psi:
2060        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2061      * gmredi_slope_limit
2062        re-activated full calculation of taperfct for case 'ac02'
2063    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2064    
2065    checkpoint47i_post
2066    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2067    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2068      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2069    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2070    o gmredi: fix few bugs.
2071    
2072    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2073    This will be a good checkpoint to plug into the ecco-branch.
2074    o few modif.'s to get latest version adjointed
2075      (mainly kick out code in ini_linear_phisurf)
2076    o modif's to run adjoint with exactConserv
2077    o case GM_BOLUS_ADVEC should be cleaned
2078      S/R gmredi_slope_psi should be cleaned
2079    o verification/carbon now has exactConserv=.TRUE.
2080    
2081    checkpoint47g_post
2082    o time-average AIM output: becomes independent from statvars time-average
2083      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2084    o After TAF bug fix:
2085      Tested adjoint of gmredi package.
2086      Tests were done with checkpoint47 rather than with latest
2087      checkpoint47f_post since the latter is broken for the adjoint
2088      verification/carbon/ contains both ADM and TLM gradient checks.
2089    Here they are, before they get changed/lost/stolen.
2090    Mostly modif.'s to fix numerical sensitivities.
2091    Gradient checks OK for
2092    - GM_taper_scheme:
2093      * clipping
2094      * ac02
2095      * linear
2096      * glw91
2097      * dm95
2098      * ldd97
2099    - GMREDI_OPTIONS:
2100      * GM_VISBECK_VARIABLE_K
2101      * GM_NON_UNITY_DIAGONAL
2102      * GM_EXTRA_DIAGONAL
2103      * GM_BOLUS_ADVEC
2104    in conjunction with data.gmredi parameters to be checked in
2105    in a few minutes under verification/carbon/code/
2106    
2107    checkpoint47f_post
2108    Merging from release1_p10:
2109    o modifications for using pkg/exf with pkg/seaice
2110      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2111        and SEAICE_EXTERNAL_FLUXES
2112      - pkg/exf CPP options EXF_READ_EVAP and
2113        EXF_NO_BULK_COMPUTATIONS
2114      - usage examples are Experiments 8 and 9 in
2115        verification/lab_sea/README
2116      - verification/lab_sea default experiment now uses
2117        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2118    
2119    checkpoint47e_post
2120    o created a tag prior to creating a branch
2121    
2122    checkpoint47d_post
2123    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2124      at the bottom boundary had an erroneous half slip boundary condition
2125    o added bottom drag and no slip boundary condition capabilities to
2126      oceanic pressure coordinates code
2127    o added new verification experiment global_ocean_pressure, this experiment is
2128      also described in the tutorial section of the manual
2129    checkpoint47d_pre
2130    
2131    checkpoint47c_post
2132    o Added a verification experiment for a global cubed-sphere ocean run
2133      -  verification/global_ocean.cubed32x32x30
2134      -  uses pkg/therm_seaice and pkg/bulk_forcing
2135    
2136    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2137    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2138      when using P-coordinate; only implemented for atmospheric config.
2139    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2140      NOTES: requires option NONLIN_FRSURF to be "#define".
2141    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2142    
2143    checkpoint47b_post
2144    Merging from release1_p9:
2145    o pkg/seaice
2146      - removed GOTO's and added taf directives
2147      - double precision constants to reduce the g77 (Linux)
2148        to F77 (SGI) differences reported in release1_p8
2149    o tools/genmake
2150      - added SGI options
2151    o verification/testscript
2152      - updated to that of checkpoint47a_post
2153    o verification/global_ocean.90x40x15/input/eedata
2154      - modified for SGI f77 compatibility
2155    o verification/lab_sea
2156      - added description of sea-ice model
2157      - added missing matlab routines
2158      - added test of thermodynamics parallelization
2159    
2160    checkpoint47a_post
2161    o new pkg: aim_v23
2162     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2163       for now, keep the same surface forcing as before.
2164     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2165     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2166     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2167    o add diagnostic of surface correction term in monitor output
2168    
2169    o bulk_force and therm_seaice
2170    - Two packages:  bulk_force (Bulk forcing)
2171      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2172    - Earlier integration from Stephaine Dutkiewicz
2173      and Patrick Heimbach.
2174    - Two ifdef statements for compile time,
2175       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2176    
2177    checkpoint47
2178    differentiable version of checkpoint46n_post
2179    o bug fix in quasihydrostaticterms
2180    o * "clean" adjoint code (in terms of extensive recomputations)
2181        can now be obtained for all GMREDI options (i.e. for
2182        - GM_VISBECK_VARIABLE_K
2183        - GM_NON_UNITY_DIAGONAL
2184        - GM_EXTRA_DIAGONAL
2185        - GM_BOLUS_ADVEC )
2186      * However, wrong gradient check problem remains unsolved.
2187      * New CPP options have been introduced for different
2188        tapering schemes
2189    o external_fields_load now part of differentiation list
2190    o pressure needs multiple storing;
2191      would be nice to have store_pressure at beginning or
2192      end of forward_step, e.g. by having phiHyd global (5-dim.)
2193      (NB: pressure is needed for certain cases in find_rho,
2194      which is also invoked through convective_adjustment).
2195    o recomputations in find_rho for cases
2196     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2197    o #define ATMOSPHERIC_LOADING should be differentiable
2198    o ini_forcing shifted to begining of initialise_varia
2199    o Incorporating QNVS line search routines into MITgcm
2200      (this is separate code, and therefore not under pkg)
2201      lsopt/, optim/
2202    o Updated verification/carbon/
2203      - #define GM_VISBECK_VARIABLE_K
2204      - GM_taper_scheme    = 'ldd97'    
2205    
2206    checkpoint46n_post
2207    Merging from release1_p8:
2208    o verification/natl_box:
2209      updating new external_fields_load routine
2210    o New package: pkg/seaice
2211      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2212      The sea-ice code is based on Hibler (1979-1980).
2213      Two sea-ice dynamic solvers, ADI and LSR, are included.
2214      In addition to computing prognostic sea-ice variables and diagnosing
2215      the forcing/external data fields that drive the ocean model,
2216      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2217      The implied surface heat flux is then stored in variable
2218      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2219      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2220      non-local transport term.  Because this call precedes model
2221      thermodynamics, temperature under sea-ice may not be "exactly" at
2222      the freezing point by the time theta is dumped or time-averaged.
2223      N.B.: fairly large differences in accuracy occur across
2224            different platforms/compilers; comparison between
2225            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2226            generated output gives:
2227       T           S           U           V
2228      C D M    c        m  s        m  s        m  s        m  s
2229      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2230      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2231      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2232    
2233      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2234    o GAD:
2235      - generated new common blocks to account for call of
2236        same gad routines with differing traceridentities
2237        (needed to modify tracerIdentity indices in GAD.h)
2238      - generated separate common blocks for case useCubedSphereExchange
2239        (Department of Futurology)
2240      - parameter lists to gmredi_?transport: added tracerIdentity
2241      - added new key indices to tamc.h
2242    o external_fields_load:
2243      - added this routine to TAF list
2244      - needed to make some common blocks global and additional storing
2245        along the same lines as exf package (checkpoint_lev?_directives.h)
2246    o exf:
2247      updated external forcing package
2248      - bug fixes carried over from ecco-branch
2249        (missing OBCS_OPTIONS.h in two routines)
2250      - enable easy to use "no forcing".
2251      - added exf I/O for atmospheric loading
2252      - added exf I/O for runoff data
2253      - transfered scaling between exf <-> MITgcm to exf namelist
2254    o Adding new verification experiment global_with_exf.
2255      This verification experiment is almost identical to the
2256      global_ocean.90x40x15 experiment, except that it uses
2257      the exf (and cal) package instead of the
2258      external_fields_load routine (cf README file).
2259    
2260    checkpoint46m_post
2261    o modified testscript to return -- when there are no lines of "%MON" output
2262    o added new flag "quasiHydrostatic" for QH mode
2263      and new routine quasihydrostaticterms()
2264    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2265      New routine: mom_u_coriolis_nh()
2266    o fixed sign of non-hydrostatic metric terms in u and v equations.
2267      Depend on correct sign of gravitySign.
2268    o added work.pc* to .cvsignore in aim directories using ifc
2269    o introduced flag for controllin non-hydrostatic metric terms
2270    o removed gravitySign from PARM04
2271    o switched to g77/ifc from pgf77 in aim experiments
2272    
2273    checkpoint46l_post
2274    o made convective adjustment work with pressure coordinates:
2275     - changed the direction of k-loop in convective_adjustment.F for the
2276       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2277     - adjusted the reference pressure k-index in convective_adjustment.F
2278     - adjusted the convection condition in convect.F (in analogy to
2279       calc_ivdc.F)
2280     - convective_adjustment no longer computes anything on the halos
2281     - removed the warnings about negative salinity from find_rho.F and
2282       find_alpha.F; instead the new routine look_for_neg_salinity, called
2283       at the beginning of find_rho, find_alpha, and find_beta, does a
2284       check of the entire slice, if CPP-option
2285       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2286    checkpoint46l_pre
2287    
2288    checkpoint46k_post
2289    o fixed the verification/global_ocean.90x40x15 experiment:
2290     - new bathymetry (the world according to A., JMC, and M.)
2291     - new initial fields and forcing fields (*.bin files)
2292     - new POLY3.COEFFS (for the next release one should switch to a full
2293       equation of state: JMD95P or MDJWF)
2294     - fixed several errors and redundancies in the data file
2295     - experiment uses looped cells
2296     - added matlab directory with diagnostic scripts for plotting of output
2297    
2298    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2299     - read AIM physics parameters from a file (data.aimphys)
2300     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2301    
2302    checkpoint46j_post
2303    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2304    o move wVel computation at the end of the time step, in S/R integr_continuity
2305    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2306    o update timeave pkg for wVel diagnostic.
2307    checkpoint46j_pre
2308    
2309    checkpoint46i_post
2310    o Clean up AIM package (and keep the results unchanged):
2311      include CPP_OPTION and use IMPLICT NONE in all routines ;
2312      declare all the variables _RL ; use _d 0 for all numerical constants.
2313      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2314    
2315    checkpoint46h_post
2316    o cleaned up the use of rhoNil and rhoConst.
2317      - rhoNil should only appear in the LINEAR equation of state, everywhere
2318        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2319        and the dynamical equations are all divided by rhoConst
2320    o introduced new parameter rhoConstFresh, a reference density of fresh
2321      water, to remove the fresh water flux's dependence on rhoNil. The default
2322      value is 999.8 kg/m^3
2323    o cleanup up external_forcing.F and external_forcing_surf.F
2324      - can now be used by both OCEANIC and OCEANICP
2325    checkpoint46h_pre
2326    
2327     Added code to convert surface volume flux (fresh water) into
2328     a mass flux when using P coordinates in the ocean (OCEANICP).
2329     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2330    
2331    checkpoint46g_post
2332    o Include a new diagnostic variable phiHydLow for the ocean model
2333      - in z-coordinates, it is the bottom pressure anomaly
2334      - in p-coordinates, it is the sea surface elevation
2335      - in both cases, these variable have global drift, reflecting the mass
2336        drift in z-coordinates and the volume drift in p-coordinates
2337      - included time averaging for phiHydLow, be aware of the drift!
2338    o depth-dependent computation of Bo_surf for pressure coordinates
2339      in the ocean (buoyancyRelation='OCEANICP')
2340      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2341        Theta, Salinity, and Pressure in the parameter list. This routine is
2342        presently contained in find_rho.F. This routine does not give the
2343        correct density for 'POLY3', which would be a z-dependent reference
2344        density.
2345    o cleaned up find_rho
2346      - removed obsolete 'eqn' from the parameter list.
2347    o added two new verification experiments: gop and goz
2348      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2349    checkpoint46g_pre
2350    
2351    checkpoint46f_post
2352    o Enable tangent linear (forward mode) gradient checks:
2353      - extended active file handling to g_... files
2354      - added TANGENT_SIMULATION to theSimulationMode
2355      - extended grdchk package accordingly
2356    o added tangent linear setup in verification/carbon/code_ftl
2357    o added adjoint setup in verification/front_relax/code_ad
2358    
2359    checkpoint46e_post
2360    o Added new equation of state -> MDJWF
2361      - EOS of McDougall et al., 2002, JAOT, submitted
2362      - caveat: the equation of state is only valid for a smaller (more
2363        realistic?) range of values than JMD95P/Z and UNESCO
2364      - added masks to the calculation of pressure in store_pressure
2365      - added more check values for density in check_eos (ini_eos.F), some of
2366        the old check values are out of the range of the MDJWF-eos, so don't
2367        expect perfect matches for those
2368    checkpoint46e_pre
2369    
2370    checkpoint46d_post
2371    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2372      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2373      case of pressure coordinates. eosType='JMD95Z' in
2374      combination with buoyancyRelation='OCEANICP' now causes an error.
2375    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2376      in find_alpha/beta.
2377    checkpoint46d_pre
2378    
2379    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2380      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2381    
2382    checkpoint46c_post
2383    o Changes necessary for ocean in p-coordinates
2384     -  Added new buoyancy relation = 'OCEANICP'
2385     -  Added new parameters = gravitySign (this used to be contained inside
2386        the factor dRdZ which I added when we first switched to R coordinates).
2387     X GM/Redi is not compatible (yet)
2388     X bottom drag and no-slip need to be debugged.
2389    checkpoint46c_pre
2390    
2391    checkpoint46b_post
2392    o Added new equation of state -> JMD95Z and JMD95P
2393      - EOS of Jackett and McDougall, 1995, JAOT
2394      - moved all EOS parameters into EOS.h
2395      - new routines ini_eos.F, store_pressure.F
2396    o Added UNESCO EOS, but not recommended because it requires
2397      in-situ temperature (see JMD95)
2398    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2399      unesco.f to be used with POLY3
2400    checkpoint46b_pre
2401    
2402    checkpoint46a_post
2403    o Added (atmospheric) pressure loading
2404      - new field in FFIELDS.h, etc...
2405      - new cpp flag ATMOSPHERIC_LOADING
2406    o Changed hFacC to _hFacC in calc_phi_hyd.F
2407    o Added SHORTWAVE_HEATING to some files for consistency
2408    checkpoint46a_pre
2409    
2410    checkpoint46
2411    further merges from release1_p5
2412    o new ctrl package
2413      - adopted from ECCO environment to enable optimization
2414      - added Eliassen Palm fluxes to controls
2415    o added Eliassen Palm flux controls to gradient check package
2416    o cost package
2417      - Compatible with new ctrl package
2418      - added Eliassen Palm cost hooks
2419      - modif's of existing cost functions
2420    o Adjoint-related bug fixes in kpp:
2421      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2422      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2423    o autodiff package
2424      - flow directives:
2425        + new for S/R do_the_model_io
2426        + enhanced for S/R checkpoint
2427        + new gmredi.flow
2428      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2429        disable adcommon.h/g_common.h by default.
2430      - fixed problem for adjoint of global_max
2431    o modified verification/carbon/
2432    o New setup for adjoint of global_ocean
2433    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2434    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2435    o incorporated hooks for sponge layer code (external_forcing.F)
2436    
2437    checkpoint45d_post
2438    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2439  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2440    (affects plume_on_slope "cg2d" output)    (affects plume_on_slope "cg2d" output)
2441    o add new parameter deltaTfreesurf for free-surface time stepping
2442    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2443  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2444  o change phiMin in exp1 (to agree with documentation)  o change phiMin in exp1 (to agree with documentation)
2445  o add new flags:  o add new flags:

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