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revision 1.247 by afe, Thu Jan 22 17:17:19 2004 UTC revision 1.708 by jmc, Mon Jul 17 01:54:55 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    checkpoint58m_post
8    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
9       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
10    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
11       keep global_ocean.90x40x15 (for AD testing) with former secondary test
12       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
13    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
14        add MITgcm_tutorials (= code + all the tutorials)
15    o ecco, option to compute cost for total ssh (mean+anom)
16    o consistent with addition of ptracer and ssh in pkg/profiles
17    o profiles: adding ptracer and ssh
18    o testreport: change multi-test output-file name
19      (from output.txt.{name} to output.{name}.txt)
20    o profiles: now ok for mutli-threaded case
21    o seaice: add 4 parameters for different advection schemes for area,
22      (effective) seaice thickness, enthalphy, and snow height. Their default
23      is the standard parameter SEAICEadvScheme
24    o calc_gw:
25     - add cosFacU in zonal viscous flux (harmonic.visc.).
26     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
27       of tutorial_plume_on_slope.
28    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
29    o calc_gw: true flux-form, account for horizontal grid spacing.
30      update rotating_tank results, but not plume_on_slope (affected at
31      truncation level, 11 digits).
32    
33    checkpoint58l_post
34    o calc_gw:
35     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
36     - remove side-drag for now (need to fix it); update plume_on_slope results.
37     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
38    o commit code to make SST/SSS weights spatially variable
39      (based on either variable in-situ or variable initial T/S weights)
40    o pkg/ecco:
41      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
42        now based on horizontally varying weights wthetaLev, wsaltLev
43      * cost_averagesflags now returns year indices in addition to day, month
44      * sflux balance is performed on annual basis
45        (sflxumm, sfluxmm2, bal_sfluxmm)
46      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
47        including separate counting and multipliers
48    o pkg/rbcs
49      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
50    
51    checkpoint58k_post
52    o testreport:
53     - always build in dir. "build" (if not there, mkdir build instead of building
54       & running in input)
55     - run in dir run (if it exists), in build otherwise.
56     - call prepare_run (if input/prepare_run exists)
57     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
58    o pkg/exf modifications to interpolation and rotation routines for more
59       reasonable treatment of North Pole singularity: for tracers North Pole
60       value is set to northernmost zonal-mean value, for zonal velocity it is
61       set to zero, and for meridional velocity it is set to northernmost value.
62    o pkg/exf/exf_check_range.F
63     - add tile index to diagnostics and move stop statement to the very
64       end of the routine.
65    o pkg/diagnostics: (diagnostics_main_init.F)
66      define title of isomorphic variables according to the current config.
67    o pkg/thsice with pkg/seaice dynamics:
68    - fix domain of computation (interior only, required for exf) and do exchanges
69    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
70    o towards a standard way of dealing with multi-threading in MONITOR
71      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
72    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
73       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
74    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
75    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
76    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
77       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
78    o tracer advection:
79     - clean-up and simplify calc_common_factors.F
80     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
81       advection subroutine (but still not used within DST advection S/R)
82    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
83    
84    checkpoint58j_post
85    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
86      from file (collects calls previously in FORWARD_STEP)
87    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
88    o adjoint store dir. adjusted accordingly
89    o genmake2
90      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
91    
92    checkpoint58i_post
93    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
94      on wind stress (SEAICEstressFactor defaults to 1.)
95    o Total number of Timers is finite (<=40): comment out 2 non-essential one
96      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
97    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
98      on CS-grid: no longer loosing mass.
99    o exf & curvilinear-grid: no longer modify longitude xC & xG.
100    o pkg/ggl90: fix sloppy output and fix a bug
101    o pkg/seaice: added SEAICEuseEVPpickup parameter
102      - Set to false in order to start EVP solver with
103        non-EVP pickup files when using SEAICEuseEVP
104      - fix sign error in diffusion in seaice_calc_rhs
105    
106    checkpoint58h_post
107    * Modifications for bottom topography control
108      o replace hFacC by _hFacC at various places
109      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
110      o add non-self-adjoint cg2d_nsa
111      o update autodiff support routines
112      o re-initialise hfac after ctrl_depth_ini
113      o works for 5x5 box, doesnt work for global_ocean.90x40x15
114    * Adding verification for 5x5 box (4-layer) bottom topography control
115    
116    checkpoint58g_post
117    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
118       used for mean seasonal cycle, mean diurnal cycle); add an example
119       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
120    o pkg/ggl90:
121      - add parameter (minimum surface kinetic energy)
122      - fix bug (avoiding division by zero)
123    o couple pkg/thsice to pkg/seaice:
124      - modify advection in seaice to accomodate new scalar fields to be advected
125      - only muliDimAdection scheme work with seaice/thsice
126      - mapping of thsice-variables to seaice-variables, back and forth
127      - does not break the verification experiments, but does not give the
128        desired results either
129    o pkg/seaice
130      - make (default) second order advection a bit less confusing?
131    
132    checkpoint58f_post
133    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
134      to pkg/seaice):
135      - new routines thsice_map_exf and thsice_get_exf provide the interface
136      - add an additional formal parameter to thsice_solve4temp
137    o pkg/exf:
138      - add new fields wspeed, snowprecip (to be able to couple to thsice)
139      - correct Stefan-Boltzmann constant
140      - new parameter for longwave surface emittance
141      - separate some stuff from exf_bulkformulae into new routines  
142        exf_radiation, exf_wind
143      - add new parameters and constants: longwave emissivity for ocean, ice
144        and snow, evaporation parameters over ice
145      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
146        either wind from stress or stress from wind
147    o pkg/thSIce:
148    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
149    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
150       and THSICE_CALC_THICKN
151    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
152    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
153      to make debugging easier.
154    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
155    o pkg/bulk_force:
156      - clean-up comments and parameters ;
157      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
158    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
159      generate new output for test-experiment: aim.5l_cs.thSI
160    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
161      testreport accordingly
162    
163    checkpoint58e_post
164    o SEAICE_CGRID adjoint done
165    o R_STAR adjoint implemented.
166      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
167      * need to sort out init. of h0facc, etc.
168    o Make pkg/profile fully independent of ecco,cost, etc. stuff
169      to be able to use it in pure forward.
170    
171    checkpoint58d_post
172    o upgrade simple test-experiment to tutorial example:
173     step.1: duplicate the experiment and (step.2) will remove the old copy.
174      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
175      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
176      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
177      tutorial_global_oce_biogeo    <- copy of dic_example
178      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
179      tutorial_plume_on_slope       <- copy of plume_on_slope
180      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
181      tutorial_global_oce_optim     <- empty for now (David ?)
182      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
183     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
184    o correct a sign problem in cost_scat.F
185    o obcs and ptracers: fix boundary conditions for advections schemes
186      with larger stencil
187    o thsice adjoint: start
188    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
189      completeness
190    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
191      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
192    o ptracers adjoint:
193      * avoid extensive recomputatations
194      * fix missing re-init. of gptr (missed by TAF)
195    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
196      me to turn off the excessive output to STDOUT that this package produces
197    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
198      and add those terms in Vector-Invariant formulation.
199    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
200      if the control period (xx_hfluxperiod etc) is 0
201    o in profiles pkg, clean routines and fix details
202    o in ecco pkg, reading ssh data:
203      fix problem in case the model does not start at iter0=0
204    o fix mnc-pickup/restart for ptracers
205    o new package prifiles:
206      code to compute profile-based cost by Gael Forget
207      (modifs in ecco, ctrl, autodiff)
208    o Benign bug fix in initialization (spotted by M. Mazloff) of
209      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
210    
211    checkpoint58c_post
212    o adjoint: finish NLFS adjoint and provide reference output in
213      verification/global_ocean.90x40x15/results_ad_nlfs
214    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
215      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
216      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
217      with SEAICE_CGRID defined.
218    o move calendarDumps from "data" to "data.cal" and clean-up the code
219      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
220    o add useEXF & useCAL flags (for now, set in hard-coded way)
221    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
222      (were missing in NH mode, and wrong in quasihydrostatic mode).
223      waiting for Chris updated version of calc_gw to add those CALLs.
224    o fix bug in quasihydrostatic S/R ;
225      add a test for this option: global_ocean.90x40x15.qshyd
226    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
227      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
228    o add on/off flag useOffLine for package OFFLINE
229    o seaice:
230      - modify advection so that it works also on the C-grid
231      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
232        problem in multi-tile runs with C-grid
233      - add flags for clipping ice velocities and/or masking solver forcing
234      - fix drag (ocean on ice) formulation and a bug that caused noise in the
235        C-grid solver
236      - added a few comments to seaice_diffusion.F
237      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
238        are now exclusive)
239      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
240        required re-ordering the code a little:
241       + make DAIRN global variable (defined in SEAICE)
242       + move computation of the viscosities eta and zeta into a new separate
243         routine (because I need to recompute them in seaice_ocean_stress.F)
244    
245    checkpoint58b_post
246    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
247      update output.txt of exp. aim.5l_cs.thSI
248    o various mnc cleanups and improvements:
249      + shrink lookup tables by factor of ~4
250      + better error reporting when running out of lookup space
251      + able to handle longer path/file names (up to 500 chars)
252    o adjoint:
253      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
254      - TBD: "hidden" mom_vecinv recomp. in dynamics
255    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
256     (allow to differentiate between forcing components using new integer flags:
257      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
258     and add new flag to put Dissipation tendency out of Adams-Bashforth.
259    o ecco
260      - enable trend removal from SSH anomaly obs.
261    o adjoint
262      - a fix for PmEpR when #undef EXACT_CONSERV
263      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
264      - try to fix "hidden" recomp. in forward_step for NLFS
265        (NLFS seems broken sometimes after I checked it in)
266    o seaice:
267     - add c-grid version of the dynamic solver:
268       + three new routines that are the c-grid substitute lsr, dynsolver
269         and ostres
270       + put a few fields that were local to dynsolver into global common
271         blocks, so that I can move the computation of stresses etc into
272         seaice_lsr (saves coding but may break the adjoint).
273     - replace more hardwired parameters by runtime parameters
274     - add ice masks that mask the rhs of the implicit solvers where there
275       is no ice (commented out in seaice_dynsolver, because i am not sure
276       if this works properly), eventually this should replace the clipping
277       of ice velocities in seaice_dynsolver to +/-40cm/s.
278    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
279      include it only where its needed
280    o move balancing of fluxes before the call of external_forcing_surf
281    o seaice:
282      - correct units of turning angles (now they are really in degrees)
283      - move computation of GWATX/Y out of main routine into dynsolver
284      - initialize GWATX/Y in seaice_init
285    o Apply mask on Fresh-Water flux (needed for SSH forcing).
286      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
287    o seaice: add runtime flags for turning angles (default to zero)
288    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
289      and trend from exf forcing and ctrl control adjustments
290    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
291      (since checkpoint57x_post)
292    o change the default rotation period to 86164.s = the Earth rotation
293    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
294      and based on a reference stratification. Tested within hs94.cs-32x32x5.
295    o seaice advection: add code for choosing between the default (2nd order
296      central differences) and multiDim advection schemes provided by
297      pkg/generic_advdiff
298    o seaice:
299      - removed all references to SEAICE_GRID.h fields from
300        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
301        (cubed-sphere configuration will change a little)
302      - grid computations in seaice_init are obsolete now.
303      - cleaned up code a little so that is easier to read (hopefully).
304      - added new (better?) discretizations of default advection and diffusion
305        (turn on with SEAICEuseFluxForm)
306      - replace 1 in 3d global fields by kSurface in growth.F
307      
308    checkpoint58a_post
309    o seaice:
310      - bug fix in advect.F
311    o shelfice:
312      - separate shelfice load anomaly from pload (breaks with time
313        dependent forcing), => introduce constant field shelficeLoadAnomaly.
314        Its default is 0., but it may be computed more cleverly from (unknown)
315        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
316        done offline. A good approximation of the pressure load anomaly is
317        necessary to avoid large initial adjustment processes underneath
318        deep-reaching shelfice.
319      - small fix in ISOMIP shelfice_thermodynamics
320      - add more sophisticated thermodynamics of Hellmer (1989), this is
321        now the default
322      - give a few constants more intuitive names
323    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
324      if bulk formulae are used in long integration (especially EmPmR). Turn
325      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
326      if balancePrintMean, the imbalance that is substracted is printed to
327      STDOUT.
328    o fix bug (typo) in obcs_apply_eta.F
329    o add a new package shelfice which enables us to model the circulation
330      underneath shelf-ice with draughts of hundreds of meters.
331     - works
332     - to do: + include improved thermodynamics
333              + check whether kSurfC (from model/inc/SURFACE.h) can be used
334                instead of new field kTopC
335              + can we use topoFile, Ro_surf and existing code in ini_depth.F
336                instead of new field R_shelfIce and new code in ini_depth.F
337                and ini_mask_etc.F?
338              + adjust vertical mixing schemes?
339    o seaice pkg:
340     - add a cpp-flag to include a simple formula for a salinity dependent
341       freezing point of sea water at the surface
342     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
343       meridional stresses are now different (and hopefully correct)
344    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
345       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
346       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
347    o pkg/diagnostics: add options and parameters for regional-statistics
348       diagnostics ; define regions by reading a region-mask from a file
349       (might add other options later)
350    o pkg/bulk_force:
351     - add option and parameters to use AIM surface-flux formulae.
352     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
353       others forcing fields (defined in PARM05, parameter file "data") are loaded
354       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
355     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
356     - use the right EXCH call for uwind,vwind (to work on CS-grid).
357     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
358       and parameters (note: calcWindStress replaces .NOT.readwindstress).
359     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
360    
361    checkpoint58
362    o add "--embed-source" option to genmake2 which, when the supporting
363      tools can be compiled (as determined by genmake2) will turn on the
364      embed_files package which then embeds the entire MITgcm source code
365      (*.[fFhc] + Makefile) used for the build within the executable
366      - requested by CNH but off by default
367      - adds a paltry <9MB to the mitgcmuv executable in most cases
368      - only writes the output when useEMBEDSRC in eedata is true
369    o clean up 3-dim. relaxation codes:
370      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
371      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
372      * Thanks to Tom Haine for testing!
373    
374    checkpoint57z_post
375    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
376      affects output (@ truncation level) of exp. plume_on_slope ; updated.
377    o fix the pickup behavior for obcs in combination with ptracers
378    o fix a bug in ptracers_external_fields_load
379    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
380      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
381    o transfered surface NH pressure to eta field (if exactConserv).
382    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
383         and update lab_sea output.txt file.
384    o completing 3-dim. relaxation code: additional term
385         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
386      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
387      * At compile time, in "EXF_OPTIONS.h" set
388          #define  ALLOW_CLIMTEMP_RELAXATION
389          #define  ALLOW_CLIMSALT_RELAXATION
390      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
391          tauThetaClimRelax3Dim = 15552000.0,
392          tauSaltClimRelax3Dim  = 15552000.0,
393      * 3 cases:
394          1) Use a constant-in-time 3-dim. field
395          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
396          3) Real-time relax. to time-evolving prescribed field
397    o Adding Laplacian-type smoothness constraint on
398      initial and boundary (forcing) controls (ic, bc)
399      * enable at compile-time via
400        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
401      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
402      * Absolute scale somewhat unclear so far
403      * no area weighting was included since no other cost term does so far
404    
405    checkpoint57y_post
406    First step for a NLFS adjoint
407    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
408    o new init. routines for calc_r_star, calc_surf_dr
409    o still need to deal with ini_masks_etc
410    o testreport seemed happy
411    checkpoint57y_pre
412    
413    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
414    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
415    o add new offset feature to offline pkg (plus minor cleanup)
416    o cfc fixes for final year of integration
417    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
418      be in GCHEM_OPTIONS).
419    
420    checkpoint57x_post
421    o fix testreport Pb in multiple test experiment.
422    o cleanup our namelist syntax in verification:
423      - make it more F95 standards compliant (some work still needed)
424      - allows the vast majority of our tests to work with gfortran
425    o Non-Hydrostatic:
426     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
427     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
428    o Allow to apply AB on T,S rather than on AB(gT,gS):
429     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
430     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
431       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
432     - need a "clever" read_pickup to restart from the other AB formulation
433    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
434    o remove some unused variables (reduces number of compiler warnings)
435    o adjoint
436      * Disable useVariableViscosity for adjoint for time being
437        (there are a number of extensive recomputations)
438      * Initialize certain variables needed for adjoint
439    
440    checkpoint57w_post
441    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
442                 fix the singleCpuIO RS version of MDSWRITEFIELD
443       and add a WARNING if using globalFiles=T with multi-processors.
444    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
445      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
446    o tracer advection scheme:
447      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
448       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
449       was not very convenient).
450      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
451       (further tests needed for the implicit DST & Flux-Limiter schemes).
452    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
453      and sRef for convenience, handy, when you want to initialize
454      ptracers in a large domain with a constant non-zero value. Also,
455      untangle ptracers_init.F a little.
456    
457    checkpoint57v_post
458    o change dome exp. to use variable viscosity in side-drag terms.
459    o remove all the files from the cfc_offline test since they are now
460      incorporated into tutorial_cfc_offline which has been producing
461      identical results for a few days of testing
462    o add new parameter: sideDragFactor to enable half-slip-side BC
463      and change side-drag S/R to use viscosity from mom_calc_visc
464      (can switch back by setting sideDragFactor=0.); affects results at
465      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
466       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
467    o vorticity & strain are now computed without masking, to account for
468      no-slip-side BC in variable viscosity calculation ; mask is applied
469      anyway later on, before computing advection/coriolis terms.
470    o modify exp4 to test new obcs support for reading from external files
471      and for passive tracers
472    o fix behavior of ptracers_monitor when monitor output is written to a
473      netcdf-file; still not independent of monitor.F (writes in the same
474      file).
475    o change default value of tRef (put a uniform, meaningful value for ocean
476      & atmos) and initialize sRef (was missing, as Martin mentioned).
477    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
478      to be proportional to enstrophy dissipation length.  Thus,
479       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
480      This is now consistent with Smagorinsky and with the manual.
481    
482    checkpoint57u_post
483    o OBCS and PTRACERS: add open boundary support for passive tracers
484      - either use homogenous (pseudo) v.Neumann conditions or prescribe
485        OB-values from file; this is not different from the way theta and salinity
486        are treated
487      - however, Orlanski-radiation conditions are not supported, and the model
488        will stop if you use pTracers and Orlanski at the same time.
489      - beefed up the rountine obcs_external_fields_load: now only those open
490        boundary values are overwritten with values from files for which there
491        are really files, otherwise the OB-fields remain untouched. This makes
492        it possible to use different OBs at different ends of the domain (as
493        with EXF)
494    o reduce number of exch calls in shap_filt (s2).
495    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
496      truncation level) 4/5 MLAdjust test results (11&12 digits match).
497    
498    checkpoint57t_post
499    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
500    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
501      same truncation, independent of the face number: affects affects several
502      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
503    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
504      note that biharmonic viscosity + no-slip was not tested in any experiment.
505    o fix bug in non-linear free-surf side-drag ; generate new output for
506      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
507    o make mnc honor the writeBinaryPrec flag for most kinds of output
508    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
509    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
510      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
511    o add brackets in multi-terms sum to get same truncation, independent of
512      the face number (manage to get exactly same value of gU,gV at the cs-edge)
513      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
514    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
515      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
516      a maximum grid-scale Reynolds number.  Also, changes all length calculations
517      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
518      Suggested values of viscosity parameters found in mom_calc_visc.
519      Many new viscosity diagnostics available.
520    
521    checkpoint57s_post
522    o Add clearing-house for viscosity calculations, mom_calc_visc and
523      correct numerous bugs in LeithD and Smagorinsky discretizations.  
524      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
525      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
526      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
527      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
528      The Strain-Tension form is now called with useStrainTensonVisc=.true.
529      ViscAhStrain and viscAhTension are now retired.
530    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
531    o In response to JMC's bug report, genmake2 now ignores any soft-links
532      that it finds in the *current* directory when searching for files.
533      Soft-links found in any other source directories will still work as
534      they did before.
535    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
536      a C routine to unlimit the stack size
537    o mnc-ify pkg/aim snapshot vars
538    o mnc-ify pkg/land as requested by Daniel
539    o various changes to mnc including:
540      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
541      - output can now be grouped so that all files within a group
542          change the ITER portion of their names in lock-step together
543      - can now read ("global") PER-FACE (in addition to PER-TILE) files
544          and works with both EXCH1 and EXCH2 (but needs more testing)
545      - writing works for all verification test cases w/ g77 on Linux
546    
547    checkpoint57r_post
548    o make MNC variable initialization happen earlier
549    o add diagnostics for (almost) each term of the momentum Eq.
550    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
551    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
552    o remove MINIMAL_TAVE_OUTPUT option ;
553      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
554    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
555      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
556    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
557    o add time-dependent SST, SSS control
558    o cost terms in ecco/ modularized (new cost_generic.F)
559    o cost_averages routines are modularized (new cost_averagesgeneric.F)
560    o new infrastructure for seaice model vs. obs misfits in seaice/
561      * driver from the_main_loop.F is seaice_cost_driver.F
562      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
563      * gradient check in Exp. 6a of natl_box_adjoint/
564    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
565      (see README file)
566    
567    checkpoint57q_post
568    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
569    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
570      - bug was reported by Jean-Michel and Ian Fenty
571    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
572      update exp. cpl_aim+ocn output.
573    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
574      Needed for high-res. runs with large global files
575      to be able to limit tapelev size
576    o Changed some tests for adjoint:
577      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
578      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
579      * global_ocean.90x40x15/ back to default 3-level checkpointing
580    o Modifications to enable scripted COMMON to MODULE conversion
581      * verification/OpenAD/code/ has necessary scripts and description;
582      * converts, compiles and runs successfully;
583    
584    checkpoint57p_post
585    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
586    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
587      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
588    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
589    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
590      (was already the case for dissipation with mom_vecinv,
591       and also the case for grad.PhiHyd when staggered-timeStep)
592      This will allow to put dissipation out-off the AB time-stepping.
593     Unfortunately, affects truncation error. Update output of exp. that "fails"
594      (cg2d matching number) and leave the others for later: front_relax(10),
595      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
596      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
597    
598    checkpoint57o_post
599    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
600      (2) its ready to be documented during the 20050801 DocFest
601    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
602      for ideal_2D_oce and lab_sea on linux_ia32_g77
603    o set to #undef CTRL_SET_OLD_MAXCVARS_30
604      in global1x1_tot/code_seaice_adj to access indices 32, 33
605      (worth another tag)
606    
607    checkpoint57n_post
608    o adding precip control xx_precip 32
609    o adding swflux control xx_swflux 33
610    o Replacing 10 forcing penalty cost routines by 1 generic.
611    o Implementing partitioning in time-mean and variable adjustment
612      for atmos. state.
613    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
614    o in natl_box_adjoint:
615      * updated exp 1 to 10
616        (but does not have time-mean vs. variable split results yet)
617    o updated global1x1/*_seaice_adj/
618      to incorporate latest changes
619    o enable useSingleCpuIO for mdsio vector routines
620      (applies in particular to tapelev I/O)
621    o removed inefficient K-loop in all active_file*control*.F
622    
623    checkpoint57m_post
624    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
625      and advect_cs (use EXCH-2 and standard cs-32 grid files).
626    o pkg/exch2: filling of face-corner halo regions is optional
627      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
628    
629    checkpoint57l_post
630     tag before updating tutorials (pre-release-2)
631    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
632       for output and interpolation of input fields onto model grid)
633    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
634       Affects results of exp. rotating_tank ; update output.txt.
635    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
636          and taking the square quantity and/or using a fraction-weight field.
637    o fix aim_diagnostics_init.F mate numbers.
638    o add mnc output capability to diagnostics/diagstat and update
639      our cvsignore files for the ACSII output generated
640    
641    checkpoint57k_post
642    o lab_sea now uses diagnostics package and provides a suite of
643      new EXF diagnostics output.
644    
645    checkpoint57j_post
646    o exf
647      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
648        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
649        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
650      * extended diagnostics output
651        - now includes all EXF variables
652        - hs, hl moved to common block
653        - separate S/R for diagnostics, called after ctrl vector is added
654        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
655        - EXFqnet contains true Qnet (i.e. includes qsw)
656      * updated verif. lab_sea, global_with_exf
657      * Rearranging hflux (exf_mapfields -> exf_getforcing)
658        to ensure that diagnostics sees a true EXFqnet
659    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
660    o diagnostics pkg: change pointers so that 1 diagnostic can be used
661      several times with different frequencies.
662    o mnc-ify the thsice package as requested by Daniel Enderton
663      - the monitor--MNC output needs work
664      - many attributes need to be added (most are currently blank)
665    o mnc-ify theaim_v23 package as requested by Daniel Enderton
666      - many attributes need to be added (most are currently blank)
667    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
668    o add Sadourny like discretization to the 4th.O vorticity advection scheme
669    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
670      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
671         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
672    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
673     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
674    
675    checkpoint57i_post
676    o Diagnostics package was changed: diagnostic allocation is now deactivated
677      by setting an empty file name in the namelist (used to be by setting 0 frequency)
678    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
679      add 1rst Order upwind vertical Shear.
680    o add a quick fix for A/B checkpointing in OFFLINE mode
681    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
682      end-run around the C/Fortran linking horror in eesup/src/timers.F
683    o added pkg/runclock: allows user to terminate run based on wall clock
684    o added non-hydrostatic scaling parameter: nh_am2
685    o pkg/my82: futile attempt to make results compiler-independent by adding
686      some "_d 0", etc. no effect.
687    o for mnc output, fill the 'T' coordinate var with myTime and create a
688      separate 'iter' variable for iteration count
689    o pkg/diagnostics:
690      add new capability: output of Global/Regional & per-level statistics ;
691      tested against monitor output (including land & thSIce) on various exp.
692    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
693    
694    checkpoint57h_done
695      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
696      data.diagnostics, data.gchem, data.ptracers) is done.
697    
698    o pkg/diagnostics: prepare for Global/Regional statistics.
699      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
700    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
701      and rename it: DIFFERENT_MULTIPLE
702    
703    checkpoint57h_post
704    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
705    o pkg/diagnostics: change output frequency, now in seconds (instead
706      of Nb of iterations). This requires to change data.diagnostics.
707    checkpoint57h_pre
708    
709    o in mnc, let the user create the output dir if both mnc_outdir_date
710      and mnc_outdir_num are false
711    o add fflags() to pkg/diagnostics which allows one to specify, on a
712      per-file basis, the file precision [default behavior is unchanged]
713    o added diagnostics to pkg/kpp, including computation of mixed layer
714      depth based on a temperature/density criterion
715    o updated verification/natl_box to test the new pkg/kpp diagnostics
716    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
717    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
718    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
719      not mnc -- this mistake was found by JMC and is now corrected
720    
721    checkpoint57g_post
722    o add Adams-Bashforth 3rd Order time stepping:
723      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
724      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
725    checkpoint57g_pre
726    
727    o make lambda[Theta,Salt]ClimRelax spatially varying
728      (default remains spatially uniform constant based on tau)
729    o added new control variables
730      * init. uVel, vVel, etanN
731      * lambda[Theta,Salt]ClimRelax
732    o separate masks used for ctrl_pack/unpack 'from write_grid' output
733      (suggested by G. Forget)
734    
735    checkpoint57f_post
736    o add parameter "baseTime" = model base time = time at iteration zero
737      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
738      account for baseTime shift
739    o move Coriolis arrays from PARAMS.h to GRID.h
740    checkpoint57f_pre
741    
742    o mnc-ifying the seaice package
743    o introduced an alternative length scale calculation for use in the limiting
744      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
745    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
746    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
747      as well as grad(vort3).  Made it compatible with both approximate form
748      for the cubed sphere and full form of these gradients.  Added flag
749      useFullLeith to select between approximate and full form.  
750    o add "d0" in getcon.F to reduce differences between compilers/platforms
751      update output.txt of exp. fizhi-gridalt-hs
752    o change port_rand funtion to allow to set the seed.
753    o fix obscure MNC bug involving conversion between reals and integers
754      - it caused no problems with certain (eg. gcc, ifc) compilers but the
755        new version is now more standards-compliant
756    o adjoint-related modifications
757      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
758      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
759      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
760    
761    checkpoint57e_post
762    o Adding eddy stress controls a la Ferreira et al.
763    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
764    
765    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
766      update output.txt of exp. fizhi-gridalt-hs
767    o add more "Z" dimensions and associated coordinate vars to MNC
768    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
769    o parameter calendarDumps: when set, approximate months (30-31 days) and years
770      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
771      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
772      months and years.  Requires pkg/cal.
773    o diagnostics: add pickup functionality
774      - off by default for backwards compatibility
775      - current version only uses MDSIO -- MNC will be added
776    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
777    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
778    
779    checkpoint57d_post
780    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
781    o modify verification/ideal_2D_oce so that it tests the creation of mnc
782      output from the diagnostics package
783    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
784    o make genmake2 more portable by using ".$FS" instead of ".f" for more
785      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
786    o add coordinate variables to the MNC output from the diagnostics package
787    o change MNC-flags default value: true when useMNC=TRUE
788    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
789      the ability (off by default) to read the grid information using MNC
790    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
791    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
792    o do snap-shot diagnostics at the middle of the time-interval (instead of
793      at the end).
794    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
795      new test for AIM with thSIce + slab-ocean
796    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
797    o move state variable diagnostics to the beginning of the time step ;
798      (note: still needs some work specially for snap-shot diagnostics)
799      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
800    
801    checkpoint57c_post
802    o Change testing option (-ieee) to get closer agreement between g77 & ifort
803    o generate new output.txt files on faulks with g77 & the new -ieee option
804    checkpoint57c_pre
805    
806    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
807      update output.txt of exp. global_ocean.90x40x15
808    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
809      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
810    o add saltFlux(+File) forcing capability with periodicExternalForcing
811    o allow to use pkg diagnostics for GM-Redi & ThSIce output
812    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
813    o improvements for the MNC output from DIAGNOSTICS:
814      - correct handling of the unlimitied dimension
815      - all dims now have associated coordinate variables
816      - variables located at U, V, and Corner ("Z") points are now written
817        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
818        *all* data points are output
819    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
820    o added pkg/seaice/seaice_monitor.F
821    o mdsio_readfield.F can now read files visible only to master MPI process.
822    o pkg/seaice: some test code for ice-modified ocean stress
823    o exf_getffields interpolation defaults to bilinear for all scalar forcing
824      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
825      spurious negative numbers for precipitation and humidity.  Will cause
826      some small numerical differences for integrations using pkg/exf/exf_interp.F.
827    o pkg/ctrl/
828      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
829        May be enabled via doPackDiag
830      *  introduce z-scaling of
831         + gradient (doZscalePack) and
832         + control (doZscaleUnpack)
833    o pkg/mdsio/
834      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
835      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
836    
837    checkpoint57b_post
838    o simplify options in diagnostics_fill arguments (remove weird combinations)
839    o fix MNC coordinate variables so that they now contain per-face index
840      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
841      general, EXCH2 grids are only aligned to a "local" coordinate system
842    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
843    o Implement instantaneous output within pkg diagnostics:
844      setting a negative frequency in data.diagnostics produces
845     "snap-shot" output (as opposed to time-average if freq > 0)
846    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
847      NOTE: change ptracer diagnostics name: use 2 characters to work with
848            more than 9 tracers. Add also diagnostics of advect & diffus flux.
849    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
850      becomes the coordinate variable for the 'T' dimension
851    o add CF-style coordinate variables to MNC
852      - just a first cut:  numbers are meaningless on the cubesphere and
853        missing along the T axis but otherwise it works!
854    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
855    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
856    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
857      this is based directly on what the model compute, so that the content of
858      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
859    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
860    o clean up build options files for SunOS, in particular
861      - remove -traditional from xmakedepend
862      - change -xarch=v9 to -xarch=native for f77
863      - restore use of make (not gmake)
864      - add CC=gcc if using g77
865    o changes per discussion of AM, JMC, & EH3 today:
866      - move redundant "grid" variables out of "state" -- in preparation of
867        creating proper CF-style coordinate variables and in recognition
868        that any/all grid variables can be easily copied (eg. w/NCO) from
869        the grid files into any of the other NetCDF files
870      - *always* output grid variables with MDSIO (this will eventually be
871        changed)
872      - output MNC grid file if useMNC is true
873    o every instance of _END_MASTER() has been found and replaced with
874      _END_MASTER( myThid ) in order to satisfy certain picky Sun
875      preprocessors
876    o re-arrange diagnostics pkg initialisation:
877     - allow each package to extend the available diagnostics list
878     - add some checking and fix small problems (multi-threaded, ...)
879     - new S/R diagnostics_fill (replace fill_diagnostics):
880       look through the short list of active diag. (instead of the long list)
881       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
882    
883    checkpoint57a_post
884    o this set of changes restores TAMC compatibility
885      tested for global_ocean.90x40x15 adjoint on trough
886      (what a pain)
887    
888    checkpoint57a_pre
889    o some modifs in tools/build_options for sunos
890    o call ctrl_pack for ctrl at end for optimcycle=0
891    
892    checkpoint57
893    o add horizontal bi-harmonic viscosity for vertical velocity
894      - new parameter viscA4W (defaults to viscA4)
895      - affects only non-hydrostatic code
896      - to be done: no-slip lateral boundary conditions
897    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
898    o implement Implicit Vertical advection for pTracers
899    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
900      (implemented also for implicit vertical diffusion & advection)
901    o OBCS: extend application of tracer open boundary conditions
902      to a strip beyond the boundary of width Olx/Oly
903    o add call monitor to TAF set of required calls (flow directives)
904      and include in natl_box_adjoint
905    o untangle a few ifdefs related to cost, ctrl, autodiff
906      untangel a few ALLOW_ECCO_OPTIMIZATION
907    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
908      (theta2, salt2 in ecco_cost_weights)
909    
910    checkpoint56c_post
911    o OBCS as control variables
912      - update ctrl_ad_diff.list, obcs_ad_diff.list
913      - remove balance of obcs controls from default
914      - fix index bug nobcs in ctrl_init
915      - fix dummy fields filen in ctrl_pack
916      - add dummy weights for obcs
917    o lsopt: comment out fort.94 output
918    o optim:
919      - remove unnecessary header files
920      - adjusted namelists
921      - add xerbla.F to Makefile
922    o exf:
923      - multiple modifications of exf_check_range
924      - unit change in exf_init_runoff from [m/year] to [m/s]
925    o mdsio:
926      - i/o-vector change debugLevel from debLevA to debLevB
927    
928    checkpoint56b_post
929    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
930      is called from DO_THE_MODEL_IO
931      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
932      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
933      - clean up PTRACERS_WRITE_TIMEAVE a little
934    o add another verification experiment that tests both the cfc-pkg and
935      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
936      reactive tendencies treated inline with regular timestepping
937    o testreport previously did a lousy job of comparing small numbers, so
938      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
939      implemented in the little c-progam tmp_cmpnum.c which is embedded in
940      testreport.
941    o ptracers_monitor: bug fix for MPI
942    
943    checkpoint56a_post
944    o GCHEM: finish reorganizating the package
945      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
946        (introduces another 3D-array for each passive tracer, but only if
947        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
948        gchemTendency is not needed because the timestep is done separately)
949      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
950      - GCHEM is now---more or less cleanly---separate from PTRACERS
951      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
952        so clear to me how that should be done in a general way.
953    o CFC: improve formatting of output in CFC_ATMOS
954    o PTRACERS:
955      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
956        that ALL experiments with ptracers enable can be checked. This makes
957        GCHEM_MONITOR obsolete.
958      - include a runtime parameter PTRACERS_monitorFreq that defaults to
959        monitorFreq
960      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
961    o add PTRACERS (PTR0[1-5]) to testreport output
962    o exf_check_range:
963      * default changed to .TRUE.
964      * will check values for niter0 if debLevA, every timestep if debLevB
965      * STOP in exf_check_range if 'out of range'
966      * range chosen generous to allow for potential extema
967      TBD: a version with stricter range
968           permitted range would be runtime parameters
969    o GMredi:
970      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
971      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
972      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
973    o GCHEM:
974      - move call to GCHEM_FORCING_SEP, so that it is now called before
975        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
976      - introduced a useGCHEM runtime flag and applied it everywhere.
977      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
978        this flag is now only visible within GCHEM-pkg routines.
979      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
980        be replaced by a 3D array that is computed before thermodynamics; for
981        this, the tracer ID iTracer had to be included into the parameter list
982        of ptracers_forcing
983      - set up forward_step to call gchem_forcing, that will replace
984        gchem_forcing_int in ptracers_forcing
985      - cleaning up
986    o small cleaning of exch2: remove files that are also in eesupp/src
987    
988    checkpoint56
989    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
990    o mnc: cleanup "full" files--fixes out-of-memory problem
991    o ECCO-GODAE
992      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
993      * fully merged and updated from SIO code
994        windstress sign change affects
995        - exf_inscal_[u/v]stress
996        - sign of xx_tau[u/v] adjustments
997        - signs in cost_scat
998      * ctrl_get_gen: avoid update of tau[u/v] for first few days
999      * natl_box_adjoint updated and compressed
1000      * 2-level checkpoint switch added
1001        (tested in EXP. 1 of natl_box_adjoint)
1002      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1003    o SVD
1004      * first complete, non-hacked version for SVD calculations
1005      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1006        performed via direct access files admtlm_vector.it????
1007        (via ctrl_[un]pack)
1008      * optimcycle is used for ARPACK iteration counter
1009        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1010      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1011        and add linear transforms where necessary
1012      * controls are initial/final SST, SSS (can be extended; need to check
1013        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1014    o mdsio: filename info to both stderr, stdout
1015    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1016      from sign change
1017    
1018    checkpoint55j_post
1019    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1020      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1021    o add consistent build directories and .cvsignore files to verification
1022    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1023    o make all subroutines 30 or less characters in length for certain older
1024      compilers to work (a thorough search only turns up two routines in
1025      pkg/ptracers)
1026    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1027      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1028    
1029    checkpoint55i_post
1030    o change arrays for total vertical diffusivity (2.D if explicit,
1031      3.D if implicit) ; each ptracer uses its own background value.
1032    o added mnc/NetCDF output capability to ocn_compon_interf
1033      - added bits to verification/cpl_aim+ocn so that it can run on
1034        ITRDA and other clusters without the mpirun "-wd" option
1035    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1036      configuration
1037    o give MNC the ability to create additional files rather than
1038      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1039      - the default is just less than 2GB which is a practical limit
1040        on many systems
1041    o Compute the non-local term using either KPP vertical diffusivity (=default)
1042       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1043    
1044    checkpoint55h_post
1045    o add verification test "vermix"
1046    o remove all the *_ioinc flags and replace with the single global
1047      outputTypesInclusive flag
1048    o allow to set a vertical profile of vertical diffusivity for T & S
1049    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1050    o useMNC moved from data.mnc to data.pkg
1051    
1052    checkpoint55g_post
1053    o Renaming carbon AD experiments to comply with testreport conventions
1054    o Updating adjoint of Held-Suarez hs94.1x64x5
1055    o Fixing directives for non-ECCO forward_step, after ECCO directives
1056      have been fixed to avoid recomp. of do_oceanic_phys
1057      Works well for global_ocean.90x40x15,
1058      but recomp. issue remains for carbon
1059    o Updating adjoint output for natl_box_adjoint after
1060      pkg/ecco has been modified (see taga c55d_post)
1061    
1062    checkpoint55f_post
1063    o rename to timeave_init_fixed
1064    
1065    checkpoint55e_post
1066    o some delicate re-shuffle of store directives to avoid one
1067      extra call of do_oceanic_physics
1068      affects ecco_the_main_loop.F, do_oceanic_physics.F
1069      checkpoint_lev1_directives.h
1070    o NB: this may break global_ocean adjoint temporarily,
1071      but it is clear how to fix it. Will do later, need this now.
1072    
1073    checkpoint55d_post
1074    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1075    o ecco_cost_weights is modified to 1x1 runs
1076    o modifs to allow observations to be read in as
1077      single file or yearly files
1078    o enable to read exf forcing fields as either
1079      single file or yearly files (flag useExfYearlyFields)
1080    checkpoint55d_pre
1081    
1082    o switch between 2-level and 3-level checkpointing
1083    o add ability of MNC to write local and "partial" (eg. 2D slices where
1084      the full 3D field is never actually stored) arrays to NetCDF files
1085      with the correct (that is, the complete multi-dimensional) set of
1086      array indicies
1087      - used in mom_vecinv() to write the diagFreq output
1088      - tested (demonstrated) in verification/aim.5l_cs
1089    o further mnc-ification
1090      - add verification/lab_sea to the list with mnc setups
1091      - fix undefined mnc v-names in cd_code
1092      - add kpp to mnc output (both snapshot and timeave)
1093    o non-hydrostatic code
1094      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1095        in calc_gw.F
1096      - defaults to viscAh
1097      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1098        friction or Leith) in non-hydrostatic mode, as long as there is
1099        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1100    o pkg/cost
1101      extend simple cost functions to treat time mean quantities
1102      (T,U,V) via cost_accumulate_state from cost_tile
1103    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1104        be 2 times larger than the minimum size the advection scheme requires.
1105        now get a perfect conservation of salt in advect_cs test-exp (updated)
1106    o GGL90 (Gaspar's TKE mixed layer)
1107      - add horizontal diffusion of TKE, requires exchanges in
1108        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1109        default. In OPA there is no horizontal diffusion of TKE but the
1110        mixing coefficients are computed from a horizontal average of TKE of
1111        6 points or so. I think that diffusion has a little more physical
1112        justification.
1113      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1114        was in vain)
1115      - mask tke-variable in ggl90_init
1116    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1117    o fix biharmonic diffusion on CS-grid.
1118    o more obcs stuff
1119      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1120        for reading boundary values. This routine is called from
1121        obcs_prescribe_read
1122      - updated obcs_check
1123      - changed sponge layer relaxation parameter units for days to seconds
1124      - turned off sponge layer by default
1125      - changed argument list of OBCS_CALC to myTime+deltaTclock
1126      - fixed about 35 bugs in obcs_external_fields_load
1127    
1128    checkpoint55c_post
1129    o obcs stuff
1130      - new runtime flags useOBCSprescribe, useOBCSbalance
1131      - re-arranged obcs_calc
1132      - moved exf_getobcs to obcs_prescibe_read
1133        obcs_prescibe_read is called after ORLANSKI stuff
1134        and independent of it (executable can contain all).
1135      - updated obcs_check
1136      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1137        These may be necessary only if tangential velocities are
1138        prescribed at OB, not sure, needs testing.
1139    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1140      which simplifies the calls and passes the ifc check-bounds test
1141    
1142    checkpoint55b_post
1143    o add a 2D scalar, Z location, exchange_2 routine.
1144    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1145      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1146      affects advect_cs results (for the wrong reason): update output.txt
1147    o use a more standard discretization for biharmonic viscosity ;
1148     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1149      affects results of dome set-up: update output.txt
1150    o fix gad_advection.F (CubedSphere part), back to version 1.23
1151    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1152    
1153    checkpoint55a_post
1154    o merged code to
1155      * prescribe/read time-dependent open boundaries
1156        (works in conjunction with exf, cal)
1157      * sponge layer code for open boundaries
1158      * each boundary N/S/E/W now has its own CPP option
1159        (healthy for the adjoint)
1160    
1161    checkpoint55
1162    o up-to-date adjoint of previous breaks
1163      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1164      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1165      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1166      - carbon: * remove tr1-related adjoint verification
1167                * add ptracer as control variable
1168    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1169      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1170    
1171    checkpoint54f_post
1172    o in verification/carbin/ remove experiment related to
1173      ALLOW_PASSIVE_TRACER (array tr1 etc)
1174      code_ad/ input_ad/ results_ad
1175    
1176    o add two new packages
1177      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1178        + subject to optimization (memory)
1179      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1180        + subject to reordering (many GOTOs in the original code)
1181        + so far opps is called for every (i,j) point, and then operates in
1182          the vertical; one may want to reorder the scheme in order operate in
1183          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1184          fields)
1185    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1186      - all verification tests compile and run with linux_ia32_g77
1187      - defaults are compatible with current input files--nothing
1188        should change if you were not previously using MNC
1189      - MNC output has been added in numerous places (eg. timeave)
1190        but there are still a few writes not yet do-able with MNC
1191        (this is in progress)
1192      - flags now allow for either/or/both use of MDSIO and MNC and
1193        documentation will soon follow
1194      - numerous small formatting cleanups for ProTeX
1195    o add version info (via BUILD_INFO.h) to MNC and stdout
1196    
1197    checkpoint54e_post
1198    o add two new packages
1199      - pp81 (Packanowski and Philander, 1981), Richardson number and
1200        stratification dependent mixing
1201      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1202      - these scheme operate in a similar manner as KPP (without ghat, of
1203        course), however there is only one diffusivity that is used for both
1204        temperature and salinity (and passive tracers)ç
1205    o add offline package
1206    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1207      provided by Stephanie Dutkiewicz
1208    o genmake2: add ability to search for C compilers and cleanup test output
1209      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1210    
1211    checkpoint54d_post
1212    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1213    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1214      leading to additional shift by 5 days each year of integration
1215       (i.e. leading to considerable offset over the years)
1216    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1217    o start with no AB and no initial filtering (staggerTimeStep):
1218      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1219    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1220      (external loading & cpl import/export stay in forward_step.F)
1221    o update coupling interface to work with new staggerTimeStep
1222    o change MDSIO ptracers_pickup.
1223    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1224    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1225    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1226    
1227    checkpoint54c_post
1228    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1229      this affects (truncation error) output.txt of test-exp:
1230       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1231    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1232    o change Qnet to always be the net heat flux, (+upward).
1233      affects (truncation error) output of natl_box exp.: updated
1234    o define the max number of passive tracers in PTRACERS_SIZE.h
1235    o start to test mnc routinely in exp0
1236    o add sea-ice loading (sIceLoad) as a new forcing field.
1237    
1238    checkpoint54b_post
1239    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1240       impressive on Altix and Opteron systems)
1241    o diagnostics can now write NetCDF files through the mnc package
1242    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1243    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1244    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1245      affects (truncation error) output of lab_sea & natl_box exp.: updated
1246    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1247    
1248    checkpoint54a_post
1249    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1250    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1251    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1252    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1253      + internal_wave (shift in writing cg2d_ini_res)
1254    checkpoint54a_pre
1255    
1256    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1257      - modified verification/lab_sea and natl_box_adjoint accordingly
1258    
1259    checkpoint54
1260    checkpoint53g_post
1261    o prepare splitting of thermodynamics: store convect.counter in common block
1262    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1263      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1264    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1265    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1266    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1267    o restore adjointability
1268    
1269    checkpoint53f_post
1270    o modifications that affect AIM experiment results (update output.txt):
1271      - no advection of S at top interface Nr (pkg/generic_advdiff)
1272      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1273    o AIM pkg:
1274      - include stability function into surf.Flux derivative relative to Tsurf
1275      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1276    
1277    checkpoint53e_post
1278    o merged cylindrical coord configuration
1279    o added rotating_tank experiment
1280    checkpoint53e_pre
1281    
1282    checkpoint53d_post
1283    o faulks upgraded: re-generate output.txt that have changed:
1284       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1285    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1286    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1287    o added Sadourny discretization of Coriolis
1288      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1289      - re-enabled use of omega3 (useAbsVorticity)
1290    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1291      vector-invariant equations
1292      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1293    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1294      hopefully without new bugs
1295      - still to do: biharmonic friction for non-hydrostatic w
1296    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1297    o regenerated output for global_ocean_ebm (using -ieee)
1298    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1299      of mom_common/
1300      - simple re-arrangement of instructions within computing loop
1301    checkpoint53d_pre
1302    
1303    checkpoint53c_post
1304    o new version of coupler for AIM+thSIce and Ocean models
1305     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1306     - land: change Evaporation of snow
1307     - aim with thSIce: fix bug in snow-precip.
1308    o changes to calc_gw.F
1309     - bug fix for w^2 term near the bottom boundary
1310     - (hopefully) improve the lateral slip boundary condtions for use with
1311        partial/looped cells
1312      - because the bug fix changes two verification experiments anyway (exp5
1313        and plume on slope), change the lateral boundary condition from half slip
1314        to the value of no_slip_sides
1315    o ebm package wasnt quite up to the parallel task. Fixed that.
1316    o Adjoint of EBM package + verification
1317      * TLM OK
1318      * ADM not sufficient accuracy yet (needs further testing)
1319    
1320    checkpoint53b_post
1321    o Commiting new energy balance model to repository
1322      * package is pkg/ebm
1323      * verif. is verification/global_ocean_ebm
1324      * references are in ebm_driver.F
1325    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1326    C        Global thermohaline circulation. Part I:
1327    C        Sensitivity to atmospheric moisture transport.
1328    C        J. Climate 12(1), 71-82
1329    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1330    C        Global thermohaline circulation. Part II:
1331    C        Sensitivity with interactive transport.
1332    C        J. Climate 12(1), 83-91
1333    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1334    C        Destabilization of the thermohaline circulation
1335    C        by atmospheric eddy transports.
1336    C        J. Climate 7(12), 1870-1882
1337    o Will need long integration testing.
1338    checkpoint53b_pre
1339    
1340    o created pkg/mom_common in preparation for variable viscosity code
1341    o renamed and split ini_mnc_io
1342    o pkg/land: only liquid water can diffuse or run-off
1343    o AIM using land: soil wetness availability account for snow
1344    o added printMapIncludesZeros to EEPARMS namelist
1345    
1346    checkpoint53a_post
1347    o restore TAMC compatiility for exf_constants.h
1348      (no usage of _d in .h)
1349    o Additional storing in KPP in an attempt to fix
1350      TAMC problem with adjoint of KPP code.
1351      (no success...)
1352      Identical code works fine with TAF.
1353    o Fixed verification/natl_box_adjoint experiments.
1354      Initial conditions for Experiments 4 and 5 are now
1355      set to "SEAICE_initialHEFF=0", which is more reasonable,
1356      and hence gives results closer to that of Experiment 2.
1357      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1358    
1359    checkpoint53
1360    o stable checkpoint with up to date adjoint
1361      TLM tests only run for 1st grdchk at the moment. Its unclear if
1362      this is a code problem or a problem with resetting code for g_
1363      variables that is being autogenerated wrong.
1364      Otherwise:
1365       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1366       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1367         are both still in chaos following their security messes.
1368    
1369    checkpoint52n_post
1370    o various build (mostly genmake2) changes including:
1371      - ability to build/run more easily within Cygwin and MacOS X
1372      - more complicated Makefiles with a stronger dependence on Gnu Make
1373    o pkg/seaice modifications
1374      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1375        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1376        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1377      - changed proxy for geostrophic velocity and updated
1378        verification/lab_sea/results/* accordingly
1379      - removed ADI dynamic solver from pkg/seaice
1380      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1381        they caused a segmentation fault under certain circumstances
1382      - removed unused field WATR
1383    o bug fix in exf-package:
1384      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1385         now reflect that.
1386    o small fixes in the cal-package:
1387      - set reference date to first of January for the 'model'-calendar
1388      - failing of cal_CheckDate in cal_FullDate now actually results in a
1389        warning
1390    o small modifications in exf-package to increase flexibility:
1391      - change climtempfreeze from a constant to a runtime parameter that
1392        is specified in data.exf_clim (default = -1.9)
1393      - introduce runtime parameter windstressmax (default = 2.0) that is
1394        specified in data.exf
1395    o fix in pkg/thsice:
1396      - update Evap (Tsf changes) to be consistent with Latent heat flux
1397      - maintain snow precipitation unchanged (even if Tsf >=0).
1398     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1399    
1400    checkpoint52m_post
1401    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1402      this does not change any of the results, because myIter=0 in swfrac always
1403      lead to jwtype=2 (the default anyway), but the call makes little sense
1404      as a default
1405    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1406    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1407      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1408    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1409    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1410    o extending useSingleCpuIO option to work with new exch2 I/O format
1411      - old-style, missing-tile I/O is still accessible by defining CPP
1412        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1413    o monitor package can write to NetCDF files and/or STDOUT
1414    o fix re-definition bug in MNC_GRID_INIT_ALL()
1415    o doc/api_reference added
1416      - a framework for building an API Reference Manual using all
1417        the "protex" comments embedded in the code
1418      - see pkg/generic_advdiff, pkg/mnc for examples
1419    o MNC:
1420      - make myThid the last argument for all subroutines
1421      - new default for the grid files: NO halos
1422      - add useMNC and other run-time flags
1423      - separate per-file-group handling of the unlimited dimension
1424      - early initialization of MNC w/ flags read at the eeboot stage
1425        and lookup tables set in initialize_fixed
1426      - write all MNC output to a freshly-created directory
1427    o thermodynamics sea-ice (thsice) is now tested with testreport.
1428    o test exp. advect_cs: use the standard cs32 grid ; update output.
1429    o Added functionality to grdchk:
1430      pick global i,j,k position (or nearest wet) where to perform check.
1431    
1432    checkpoint52l_post
1433    o new land formulation:
1434      a) use ground enthalpy as prognostic variable to ensure exact
1435         energy conservation.
1436      b) account for water temperature and for latent heat of freezing
1437         in all processes (rain, run-off, ground storage)
1438      c) compute surface and ground temperature implicitly.
1439    o aim_v23 modification for new land model:
1440      a) Treat separately land / ocean / sea-ice surface fluxes
1441         to allow implicit computation of land & sea-ice surface temp.
1442      b) add snow precipitation.
1443    checkpoint52l_pre
1444    
1445    o fix problem (when 1 tile is empty) in min/max monitor.
1446    o fix bug in timeAve (u,vZetatave in common block)
1447    o no restoring terms under ice for pkg/seaice
1448    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1449    o bug fix for pkg/seaice pickups
1450    o change MNC call locations and add coordinate attributes
1451    o mask vorticity at the corner ; affects global_ocean.cs output
1452    o fix ini_curvilinear_grid ; test CS experiments with mpi
1453    o aim.5l_cs: modify sea-ice fraction input file ; update output
1454    o exf: Adding simple range check routine for exf fields after read
1455    
1456    checkpoint52k_post
1457    o removed top-level directory "diags"
1458      - we migrated these functions to pkg/timeave a long time ago
1459    o fixed bug introduced in pkg/monitor
1460    o accuracy ctrlprec = 32 insuffient for gradient checks using
1461      averaged fields (I/O via cost_averages)
1462      -> use ctrl.h in active_file*.F to control I/O precision.
1463    o paramter list of CALL ADTHE_MAIN_LOOP
1464    o added initial do_the_model_io to ecco
1465    o set all ...Freq to zero after cost_final
1466      taveFreq, dumpFreq, pChkptFreq
1467    o MAIN and ECCO differentiability restored
1468    
1469    checkpoint52j_post
1470    o fix nchklev in tamc.h for global_ocean...
1471    o Bringing flow and store directives up-to-date
1472    o Really weird thing!
1473      call do_the_model_io from the_main_loop with parameters
1474      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1475      TAF places a faulty re-call of initialise_varia
1476      after cost_final call which should not be there!
1477    checkpoint52j_pre
1478    
1479    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1480      error messages
1481    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1482    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1483      debug output
1484    o modfied mdsio_writefield.F to handle non-global files under exch2
1485    o update AIM Cubed-Sphere exp (aim.5l_cs):
1486      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1487    o update AIM Equatorial Channel exp:
1488      use standard aim_v23 pkg and change the SST fields to be more realistic.
1489    o globalFile now works with exch2
1490  o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and  o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1491    mon_vort3.F to make exch2 friendly with >1 tile per cube    mon_vort3.F to make exch2 friendly with >1 tile per cube face
1492    face  o limit timeave output for hi-res integrations
1493    
1494  checkpoint52i_post  checkpoint52i_post
1495  o removed CPP_EEOPTIONS.h from verification/*/code  o removed CPP_EEOPTIONS.h from verification/*/code

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