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revision 1.232 by jmc, Wed Dec 31 20:29:54 2003 UTC revision 1.705 by gforget, Sat Jul 15 01:23:19 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 ecco, option to compute cost for total ssh (mean+anom)
8    o consistent with addition of ptracer and ssh in pkg/profiles
9    o profiles: adding ptracer and ssh
10    o testreport: change multi-test output-file name
11      (from output.txt.{name} to output.{name}.txt)
12    o profiles: now ok for mutli-threaded case
13    o seaice: add 4 parameters for different advection schemes for area,
14      (effective) seaice thickness, enthalphy, and snow height. Their default
15      is the standard parameter SEAICEadvScheme
16    o calc_gw:
17     - add cosFacU in zonal viscous flux (harmonic.visc.).
18     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
19       of tutorial_plume_on_slope.
20    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
21    o calc_gw: true flux-form, account for horizontal grid spacing.
22      update rotating_tank results, but not plume_on_slope (affected at
23      truncation level, 11 digits).
24    
25    checkpoint58l_post
26    o calc_gw:
27     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
28     - remove side-drag for now (need to fix it); update plume_on_slope results.
29     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
30    o commit code to make SST/SSS weights spatially variable
31      (based on either variable in-situ or variable initial T/S weights)
32    o pkg/ecco:
33      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
34        now based on horizontally varying weights wthetaLev, wsaltLev
35      * cost_averagesflags now returns year indices in addition to day, month
36      * sflux balance is performed on annual basis
37        (sflxumm, sfluxmm2, bal_sfluxmm)
38      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
39        including separate counting and multipliers
40    o pkg/rbcs
41      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
42    
43    checkpoint58k_post
44    o testreport:
45     - always build in dir. "build" (if not there, mkdir build instead of building
46       & running in input)
47     - run in dir run (if it exists), in build otherwise.
48     - call prepare_run (if input/prepare_run exists)
49     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
50    o pkg/exf modifications to interpolation and rotation routines for more
51       reasonable treatment of North Pole singularity: for tracers North Pole
52       value is set to northernmost zonal-mean value, for zonal velocity it is
53       set to zero, and for meridional velocity it is set to northernmost value.
54    o pkg/exf/exf_check_range.F
55     - add tile index to diagnostics and move stop statement to the very
56       end of the routine.
57    o pkg/diagnostics: (diagnostics_main_init.F)
58      define title of isomorphic variables according to the current config.
59    o pkg/thsice with pkg/seaice dynamics:
60    - fix domain of computation (interior only, required for exf) and do exchanges
61    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
62    o towards a standard way of dealing with multi-threading in MONITOR
63      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
64    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
65       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
66    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
67    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
68    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
69       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
70    o tracer advection:
71     - clean-up and simplify calc_common_factors.F
72     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
73       advection subroutine (but still not used within DST advection S/R)
74    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
75    
76    checkpoint58j_post
77    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
78      from file (collects calls previously in FORWARD_STEP)
79    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
80    o adjoint store dir. adjusted accordingly
81    o genmake2
82      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
83    
84    checkpoint58i_post
85    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
86      on wind stress (SEAICEstressFactor defaults to 1.)
87    o Total number of Timers is finite (<=40): comment out 2 non-essential one
88      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
89    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
90      on CS-grid: no longer loosing mass.
91    o exf & curvilinear-grid: no longer modify longitude xC & xG.
92    o pkg/ggl90: fix sloppy output and fix a bug
93    o pkg/seaice: added SEAICEuseEVPpickup parameter
94      - Set to false in order to start EVP solver with
95        non-EVP pickup files when using SEAICEuseEVP
96      - fix sign error in diffusion in seaice_calc_rhs
97    
98    checkpoint58h_post
99    * Modifications for bottom topography control
100      o replace hFacC by _hFacC at various places
101      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
102      o add non-self-adjoint cg2d_nsa
103      o update autodiff support routines
104      o re-initialise hfac after ctrl_depth_ini
105      o works for 5x5 box, doesnt work for global_ocean.90x40x15
106    * Adding verification for 5x5 box (4-layer) bottom topography control
107    
108    checkpoint58g_post
109    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
110       used for mean seasonal cycle, mean diurnal cycle); add an example
111       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
112    o pkg/ggl90:
113      - add parameter (minimum surface kinetic energy)
114      - fix bug (avoiding division by zero)
115    o couple pkg/thsice to pkg/seaice:
116      - modify advection in seaice to accomodate new scalar fields to be advected
117      - only muliDimAdection scheme work with seaice/thsice
118      - mapping of thsice-variables to seaice-variables, back and forth
119      - does not break the verification experiments, but does not give the
120        desired results either
121    o pkg/seaice
122      - make (default) second order advection a bit less confusing?
123    
124    checkpoint58f_post
125    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
126      to pkg/seaice):
127      - new routines thsice_map_exf and thsice_get_exf provide the interface
128      - add an additional formal parameter to thsice_solve4temp
129    o pkg/exf:
130      - add new fields wspeed, snowprecip (to be able to couple to thsice)
131      - correct Stefan-Boltzmann constant
132      - new parameter for longwave surface emittance
133      - separate some stuff from exf_bulkformulae into new routines  
134        exf_radiation, exf_wind
135      - add new parameters and constants: longwave emissivity for ocean, ice
136        and snow, evaporation parameters over ice
137      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
138        either wind from stress or stress from wind
139    o pkg/thSIce:
140    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
141    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
142       and THSICE_CALC_THICKN
143    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
144    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
145      to make debugging easier.
146    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
147    o pkg/bulk_force:
148      - clean-up comments and parameters ;
149      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
150    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
151      generate new output for test-experiment: aim.5l_cs.thSI
152    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
153      testreport accordingly
154    
155    checkpoint58e_post
156    o SEAICE_CGRID adjoint done
157    o R_STAR adjoint implemented.
158      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
159      * need to sort out init. of h0facc, etc.
160    o Make pkg/profile fully independent of ecco,cost, etc. stuff
161      to be able to use it in pure forward.
162    
163    checkpoint58d_post
164    o upgrade simple test-experiment to tutorial example:
165     step.1: duplicate the experiment and (step.2) will remove the old copy.
166      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
167      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
168      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
169      tutorial_global_oce_biogeo    <- copy of dic_example
170      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
171      tutorial_plume_on_slope       <- copy of plume_on_slope
172      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
173      tutorial_global_oce_optim     <- empty for now (David ?)
174      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
175     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
176    o correct a sign problem in cost_scat.F
177    o obcs and ptracers: fix boundary conditions for advections schemes
178      with larger stencil
179    o thsice adjoint: start
180    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
181      completeness
182    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
183      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
184    o ptracers adjoint:
185      * avoid extensive recomputatations
186      * fix missing re-init. of gptr (missed by TAF)
187    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
188      me to turn off the excessive output to STDOUT that this package produces
189    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
190      and add those terms in Vector-Invariant formulation.
191    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
192      if the control period (xx_hfluxperiod etc) is 0
193    o in profiles pkg, clean routines and fix details
194    o in ecco pkg, reading ssh data:
195      fix problem in case the model does not start at iter0=0
196    o fix mnc-pickup/restart for ptracers
197    o new package prifiles:
198      code to compute profile-based cost by Gael Forget
199      (modifs in ecco, ctrl, autodiff)
200    o Benign bug fix in initialization (spotted by M. Mazloff) of
201      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
202    
203    checkpoint58c_post
204    o adjoint: finish NLFS adjoint and provide reference output in
205      verification/global_ocean.90x40x15/results_ad_nlfs
206    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
207      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
208      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
209      with SEAICE_CGRID defined.
210    o move calendarDumps from "data" to "data.cal" and clean-up the code
211      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
212    o add useEXF & useCAL flags (for now, set in hard-coded way)
213    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
214      (were missing in NH mode, and wrong in quasihydrostatic mode).
215      waiting for Chris updated version of calc_gw to add those CALLs.
216    o fix bug in quasihydrostatic S/R ;
217      add a test for this option: global_ocean.90x40x15.qshyd
218    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
219      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
220    o add on/off flag useOffLine for package OFFLINE
221    o seaice:
222      - modify advection so that it works also on the C-grid
223      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
224        problem in multi-tile runs with C-grid
225      - add flags for clipping ice velocities and/or masking solver forcing
226      - fix drag (ocean on ice) formulation and a bug that caused noise in the
227        C-grid solver
228      - added a few comments to seaice_diffusion.F
229      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
230        are now exclusive)
231      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
232        required re-ordering the code a little:
233       + make DAIRN global variable (defined in SEAICE)
234       + move computation of the viscosities eta and zeta into a new separate
235         routine (because I need to recompute them in seaice_ocean_stress.F)
236    
237    checkpoint58b_post
238    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
239      update output.txt of exp. aim.5l_cs.thSI
240    o various mnc cleanups and improvements:
241      + shrink lookup tables by factor of ~4
242      + better error reporting when running out of lookup space
243      + able to handle longer path/file names (up to 500 chars)
244    o adjoint:
245      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
246      - TBD: "hidden" mom_vecinv recomp. in dynamics
247    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
248     (allow to differentiate between forcing components using new integer flags:
249      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
250     and add new flag to put Dissipation tendency out of Adams-Bashforth.
251    o ecco
252      - enable trend removal from SSH anomaly obs.
253    o adjoint
254      - a fix for PmEpR when #undef EXACT_CONSERV
255      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
256      - try to fix "hidden" recomp. in forward_step for NLFS
257        (NLFS seems broken sometimes after I checked it in)
258    o seaice:
259     - add c-grid version of the dynamic solver:
260       + three new routines that are the c-grid substitute lsr, dynsolver
261         and ostres
262       + put a few fields that were local to dynsolver into global common
263         blocks, so that I can move the computation of stresses etc into
264         seaice_lsr (saves coding but may break the adjoint).
265     - replace more hardwired parameters by runtime parameters
266     - add ice masks that mask the rhs of the implicit solvers where there
267       is no ice (commented out in seaice_dynsolver, because i am not sure
268       if this works properly), eventually this should replace the clipping
269       of ice velocities in seaice_dynsolver to +/-40cm/s.
270    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
271      include it only where its needed
272    o move balancing of fluxes before the call of external_forcing_surf
273    o seaice:
274      - correct units of turning angles (now they are really in degrees)
275      - move computation of GWATX/Y out of main routine into dynsolver
276      - initialize GWATX/Y in seaice_init
277    o Apply mask on Fresh-Water flux (needed for SSH forcing).
278      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
279    o seaice: add runtime flags for turning angles (default to zero)
280    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
281      and trend from exf forcing and ctrl control adjustments
282    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
283      (since checkpoint57x_post)
284    o change the default rotation period to 86164.s = the Earth rotation
285    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
286      and based on a reference stratification. Tested within hs94.cs-32x32x5.
287    o seaice advection: add code for choosing between the default (2nd order
288      central differences) and multiDim advection schemes provided by
289      pkg/generic_advdiff
290    o seaice:
291      - removed all references to SEAICE_GRID.h fields from
292        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
293        (cubed-sphere configuration will change a little)
294      - grid computations in seaice_init are obsolete now.
295      - cleaned up code a little so that is easier to read (hopefully).
296      - added new (better?) discretizations of default advection and diffusion
297        (turn on with SEAICEuseFluxForm)
298      - replace 1 in 3d global fields by kSurface in growth.F
299      
300    checkpoint58a_post
301    o seaice:
302      - bug fix in advect.F
303    o shelfice:
304      - separate shelfice load anomaly from pload (breaks with time
305        dependent forcing), => introduce constant field shelficeLoadAnomaly.
306        Its default is 0., but it may be computed more cleverly from (unknown)
307        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
308        done offline. A good approximation of the pressure load anomaly is
309        necessary to avoid large initial adjustment processes underneath
310        deep-reaching shelfice.
311      - small fix in ISOMIP shelfice_thermodynamics
312      - add more sophisticated thermodynamics of Hellmer (1989), this is
313        now the default
314      - give a few constants more intuitive names
315    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
316      if bulk formulae are used in long integration (especially EmPmR). Turn
317      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
318      if balancePrintMean, the imbalance that is substracted is printed to
319      STDOUT.
320    o fix bug (typo) in obcs_apply_eta.F
321    o add a new package shelfice which enables us to model the circulation
322      underneath shelf-ice with draughts of hundreds of meters.
323     - works
324     - to do: + include improved thermodynamics
325              + check whether kSurfC (from model/inc/SURFACE.h) can be used
326                instead of new field kTopC
327              + can we use topoFile, Ro_surf and existing code in ini_depth.F
328                instead of new field R_shelfIce and new code in ini_depth.F
329                and ini_mask_etc.F?
330              + adjust vertical mixing schemes?
331    o seaice pkg:
332     - add a cpp-flag to include a simple formula for a salinity dependent
333       freezing point of sea water at the surface
334     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
335       meridional stresses are now different (and hopefully correct)
336    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
337       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
338       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
339    o pkg/diagnostics: add options and parameters for regional-statistics
340       diagnostics ; define regions by reading a region-mask from a file
341       (might add other options later)
342    o pkg/bulk_force:
343     - add option and parameters to use AIM surface-flux formulae.
344     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
345       others forcing fields (defined in PARM05, parameter file "data") are loaded
346       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
347     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
348     - use the right EXCH call for uwind,vwind (to work on CS-grid).
349     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
350       and parameters (note: calcWindStress replaces .NOT.readwindstress).
351     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
352    
353    checkpoint58
354    o add "--embed-source" option to genmake2 which, when the supporting
355      tools can be compiled (as determined by genmake2) will turn on the
356      embed_files package which then embeds the entire MITgcm source code
357      (*.[fFhc] + Makefile) used for the build within the executable
358      - requested by CNH but off by default
359      - adds a paltry <9MB to the mitgcmuv executable in most cases
360      - only writes the output when useEMBEDSRC in eedata is true
361    o clean up 3-dim. relaxation codes:
362      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
363      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
364      * Thanks to Tom Haine for testing!
365    
366    checkpoint57z_post
367    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
368      affects output (@ truncation level) of exp. plume_on_slope ; updated.
369    o fix the pickup behavior for obcs in combination with ptracers
370    o fix a bug in ptracers_external_fields_load
371    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
372      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
373    o transfered surface NH pressure to eta field (if exactConserv).
374    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
375         and update lab_sea output.txt file.
376    o completing 3-dim. relaxation code: additional term
377         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
378      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
379      * At compile time, in "EXF_OPTIONS.h" set
380          #define  ALLOW_CLIMTEMP_RELAXATION
381          #define  ALLOW_CLIMSALT_RELAXATION
382      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
383          tauThetaClimRelax3Dim = 15552000.0,
384          tauSaltClimRelax3Dim  = 15552000.0,
385      * 3 cases:
386          1) Use a constant-in-time 3-dim. field
387          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
388          3) Real-time relax. to time-evolving prescribed field
389    o Adding Laplacian-type smoothness constraint on
390      initial and boundary (forcing) controls (ic, bc)
391      * enable at compile-time via
392        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
393      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
394      * Absolute scale somewhat unclear so far
395      * no area weighting was included since no other cost term does so far
396    
397    checkpoint57y_post
398    First step for a NLFS adjoint
399    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
400    o new init. routines for calc_r_star, calc_surf_dr
401    o still need to deal with ini_masks_etc
402    o testreport seemed happy
403    checkpoint57y_pre
404    
405    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
406    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
407    o add new offset feature to offline pkg (plus minor cleanup)
408    o cfc fixes for final year of integration
409    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
410      be in GCHEM_OPTIONS).
411    
412    checkpoint57x_post
413    o fix testreport Pb in multiple test experiment.
414    o cleanup our namelist syntax in verification:
415      - make it more F95 standards compliant (some work still needed)
416      - allows the vast majority of our tests to work with gfortran
417    o Non-Hydrostatic:
418     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
419     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
420    o Allow to apply AB on T,S rather than on AB(gT,gS):
421     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
422     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
423       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
424     - need a "clever" read_pickup to restart from the other AB formulation
425    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
426    o remove some unused variables (reduces number of compiler warnings)
427    o adjoint
428      * Disable useVariableViscosity for adjoint for time being
429        (there are a number of extensive recomputations)
430      * Initialize certain variables needed for adjoint
431    
432    checkpoint57w_post
433    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
434                 fix the singleCpuIO RS version of MDSWRITEFIELD
435       and add a WARNING if using globalFiles=T with multi-processors.
436    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
437      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
438    o tracer advection scheme:
439      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
440       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
441       was not very convenient).
442      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
443       (further tests needed for the implicit DST & Flux-Limiter schemes).
444    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
445      and sRef for convenience, handy, when you want to initialize
446      ptracers in a large domain with a constant non-zero value. Also,
447      untangle ptracers_init.F a little.
448    
449    checkpoint57v_post
450    o change dome exp. to use variable viscosity in side-drag terms.
451    o remove all the files from the cfc_offline test since they are now
452      incorporated into tutorial_cfc_offline which has been producing
453      identical results for a few days of testing
454    o add new parameter: sideDragFactor to enable half-slip-side BC
455      and change side-drag S/R to use viscosity from mom_calc_visc
456      (can switch back by setting sideDragFactor=0.); affects results at
457      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
458       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
459    o vorticity & strain are now computed without masking, to account for
460      no-slip-side BC in variable viscosity calculation ; mask is applied
461      anyway later on, before computing advection/coriolis terms.
462    o modify exp4 to test new obcs support for reading from external files
463      and for passive tracers
464    o fix behavior of ptracers_monitor when monitor output is written to a
465      netcdf-file; still not independent of monitor.F (writes in the same
466      file).
467    o change default value of tRef (put a uniform, meaningful value for ocean
468      & atmos) and initialize sRef (was missing, as Martin mentioned).
469    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
470      to be proportional to enstrophy dissipation length.  Thus,
471       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
472      This is now consistent with Smagorinsky and with the manual.
473    
474    checkpoint57u_post
475    o OBCS and PTRACERS: add open boundary support for passive tracers
476      - either use homogenous (pseudo) v.Neumann conditions or prescribe
477        OB-values from file; this is not different from the way theta and salinity
478        are treated
479      - however, Orlanski-radiation conditions are not supported, and the model
480        will stop if you use pTracers and Orlanski at the same time.
481      - beefed up the rountine obcs_external_fields_load: now only those open
482        boundary values are overwritten with values from files for which there
483        are really files, otherwise the OB-fields remain untouched. This makes
484        it possible to use different OBs at different ends of the domain (as
485        with EXF)
486    o reduce number of exch calls in shap_filt (s2).
487    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
488      truncation level) 4/5 MLAdjust test results (11&12 digits match).
489    
490    checkpoint57t_post
491    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
492    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
493      same truncation, independent of the face number: affects affects several
494      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
495    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
496      note that biharmonic viscosity + no-slip was not tested in any experiment.
497    o fix bug in non-linear free-surf side-drag ; generate new output for
498      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
499    o make mnc honor the writeBinaryPrec flag for most kinds of output
500    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
501    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
502      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
503    o add brackets in multi-terms sum to get same truncation, independent of
504      the face number (manage to get exactly same value of gU,gV at the cs-edge)
505      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
506    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
507      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
508      a maximum grid-scale Reynolds number.  Also, changes all length calculations
509      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
510      Suggested values of viscosity parameters found in mom_calc_visc.
511      Many new viscosity diagnostics available.
512    
513    checkpoint57s_post
514    o Add clearing-house for viscosity calculations, mom_calc_visc and
515      correct numerous bugs in LeithD and Smagorinsky discretizations.  
516      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
517      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
518      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
519      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
520      The Strain-Tension form is now called with useStrainTensonVisc=.true.
521      ViscAhStrain and viscAhTension are now retired.
522    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
523    o In response to JMC's bug report, genmake2 now ignores any soft-links
524      that it finds in the *current* directory when searching for files.
525      Soft-links found in any other source directories will still work as
526      they did before.
527    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
528      a C routine to unlimit the stack size
529    o mnc-ify pkg/aim snapshot vars
530    o mnc-ify pkg/land as requested by Daniel
531    o various changes to mnc including:
532      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
533      - output can now be grouped so that all files within a group
534          change the ITER portion of their names in lock-step together
535      - can now read ("global") PER-FACE (in addition to PER-TILE) files
536          and works with both EXCH1 and EXCH2 (but needs more testing)
537      - writing works for all verification test cases w/ g77 on Linux
538    
539    checkpoint57r_post
540    o make MNC variable initialization happen earlier
541    o add diagnostics for (almost) each term of the momentum Eq.
542    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
543    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
544    o remove MINIMAL_TAVE_OUTPUT option ;
545      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
546    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
547      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
548    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
549    o add time-dependent SST, SSS control
550    o cost terms in ecco/ modularized (new cost_generic.F)
551    o cost_averages routines are modularized (new cost_averagesgeneric.F)
552    o new infrastructure for seaice model vs. obs misfits in seaice/
553      * driver from the_main_loop.F is seaice_cost_driver.F
554      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
555      * gradient check in Exp. 6a of natl_box_adjoint/
556    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
557      (see README file)
558    
559    checkpoint57q_post
560    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
561    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
562      - bug was reported by Jean-Michel and Ian Fenty
563    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
564      update exp. cpl_aim+ocn output.
565    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
566      Needed for high-res. runs with large global files
567      to be able to limit tapelev size
568    o Changed some tests for adjoint:
569      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
570      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
571      * global_ocean.90x40x15/ back to default 3-level checkpointing
572    o Modifications to enable scripted COMMON to MODULE conversion
573      * verification/OpenAD/code/ has necessary scripts and description;
574      * converts, compiles and runs successfully;
575    
576    checkpoint57p_post
577    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
578    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
579      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
580    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
581    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
582      (was already the case for dissipation with mom_vecinv,
583       and also the case for grad.PhiHyd when staggered-timeStep)
584      This will allow to put dissipation out-off the AB time-stepping.
585     Unfortunately, affects truncation error. Update output of exp. that "fails"
586      (cg2d matching number) and leave the others for later: front_relax(10),
587      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
588      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
589    
590    checkpoint57o_post
591    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
592      (2) its ready to be documented during the 20050801 DocFest
593    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
594      for ideal_2D_oce and lab_sea on linux_ia32_g77
595    o set to #undef CTRL_SET_OLD_MAXCVARS_30
596      in global1x1_tot/code_seaice_adj to access indices 32, 33
597      (worth another tag)
598    
599    checkpoint57n_post
600    o adding precip control xx_precip 32
601    o adding swflux control xx_swflux 33
602    o Replacing 10 forcing penalty cost routines by 1 generic.
603    o Implementing partitioning in time-mean and variable adjustment
604      for atmos. state.
605    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
606    o in natl_box_adjoint:
607      * updated exp 1 to 10
608        (but does not have time-mean vs. variable split results yet)
609    o updated global1x1/*_seaice_adj/
610      to incorporate latest changes
611    o enable useSingleCpuIO for mdsio vector routines
612      (applies in particular to tapelev I/O)
613    o removed inefficient K-loop in all active_file*control*.F
614    
615    checkpoint57m_post
616    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
617      and advect_cs (use EXCH-2 and standard cs-32 grid files).
618    o pkg/exch2: filling of face-corner halo regions is optional
619      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
620    
621    checkpoint57l_post
622     tag before updating tutorials (pre-release-2)
623    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
624       for output and interpolation of input fields onto model grid)
625    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
626       Affects results of exp. rotating_tank ; update output.txt.
627    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
628          and taking the square quantity and/or using a fraction-weight field.
629    o fix aim_diagnostics_init.F mate numbers.
630    o add mnc output capability to diagnostics/diagstat and update
631      our cvsignore files for the ACSII output generated
632    
633    checkpoint57k_post
634    o lab_sea now uses diagnostics package and provides a suite of
635      new EXF diagnostics output.
636    
637    checkpoint57j_post
638    o exf
639      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
640        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
641        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
642      * extended diagnostics output
643        - now includes all EXF variables
644        - hs, hl moved to common block
645        - separate S/R for diagnostics, called after ctrl vector is added
646        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
647        - EXFqnet contains true Qnet (i.e. includes qsw)
648      * updated verif. lab_sea, global_with_exf
649      * Rearranging hflux (exf_mapfields -> exf_getforcing)
650        to ensure that diagnostics sees a true EXFqnet
651    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
652    o diagnostics pkg: change pointers so that 1 diagnostic can be used
653      several times with different frequencies.
654    o mnc-ify the thsice package as requested by Daniel Enderton
655      - the monitor--MNC output needs work
656      - many attributes need to be added (most are currently blank)
657    o mnc-ify theaim_v23 package as requested by Daniel Enderton
658      - many attributes need to be added (most are currently blank)
659    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
660    o add Sadourny like discretization to the 4th.O vorticity advection scheme
661    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
662      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
663         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
664    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
665     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
666    
667    checkpoint57i_post
668    o Diagnostics package was changed: diagnostic allocation is now deactivated
669      by setting an empty file name in the namelist (used to be by setting 0 frequency)
670    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
671      add 1rst Order upwind vertical Shear.
672    o add a quick fix for A/B checkpointing in OFFLINE mode
673    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
674      end-run around the C/Fortran linking horror in eesup/src/timers.F
675    o added pkg/runclock: allows user to terminate run based on wall clock
676    o added non-hydrostatic scaling parameter: nh_am2
677    o pkg/my82: futile attempt to make results compiler-independent by adding
678      some "_d 0", etc. no effect.
679    o for mnc output, fill the 'T' coordinate var with myTime and create a
680      separate 'iter' variable for iteration count
681    o pkg/diagnostics:
682      add new capability: output of Global/Regional & per-level statistics ;
683      tested against monitor output (including land & thSIce) on various exp.
684    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
685    
686    checkpoint57h_done
687      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
688      data.diagnostics, data.gchem, data.ptracers) is done.
689    
690    o pkg/diagnostics: prepare for Global/Regional statistics.
691      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
692    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
693      and rename it: DIFFERENT_MULTIPLE
694    
695    checkpoint57h_post
696    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
697    o pkg/diagnostics: change output frequency, now in seconds (instead
698      of Nb of iterations). This requires to change data.diagnostics.
699    checkpoint57h_pre
700    
701    o in mnc, let the user create the output dir if both mnc_outdir_date
702      and mnc_outdir_num are false
703    o add fflags() to pkg/diagnostics which allows one to specify, on a
704      per-file basis, the file precision [default behavior is unchanged]
705    o added diagnostics to pkg/kpp, including computation of mixed layer
706      depth based on a temperature/density criterion
707    o updated verification/natl_box to test the new pkg/kpp diagnostics
708    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
709    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
710    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
711      not mnc -- this mistake was found by JMC and is now corrected
712    
713    checkpoint57g_post
714    o add Adams-Bashforth 3rd Order time stepping:
715      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
716      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
717    checkpoint57g_pre
718    
719    o make lambda[Theta,Salt]ClimRelax spatially varying
720      (default remains spatially uniform constant based on tau)
721    o added new control variables
722      * init. uVel, vVel, etanN
723      * lambda[Theta,Salt]ClimRelax
724    o separate masks used for ctrl_pack/unpack 'from write_grid' output
725      (suggested by G. Forget)
726    
727    checkpoint57f_post
728    o add parameter "baseTime" = model base time = time at iteration zero
729      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
730      account for baseTime shift
731    o move Coriolis arrays from PARAMS.h to GRID.h
732    checkpoint57f_pre
733    
734    o mnc-ifying the seaice package
735    o introduced an alternative length scale calculation for use in the limiting
736      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
737    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
738    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
739      as well as grad(vort3).  Made it compatible with both approximate form
740      for the cubed sphere and full form of these gradients.  Added flag
741      useFullLeith to select between approximate and full form.  
742    o add "d0" in getcon.F to reduce differences between compilers/platforms
743      update output.txt of exp. fizhi-gridalt-hs
744    o change port_rand funtion to allow to set the seed.
745    o fix obscure MNC bug involving conversion between reals and integers
746      - it caused no problems with certain (eg. gcc, ifc) compilers but the
747        new version is now more standards-compliant
748    o adjoint-related modifications
749      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
750      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
751      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
752    
753    checkpoint57e_post
754    o Adding eddy stress controls a la Ferreira et al.
755    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
756    
757    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
758      update output.txt of exp. fizhi-gridalt-hs
759    o add more "Z" dimensions and associated coordinate vars to MNC
760    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
761    o parameter calendarDumps: when set, approximate months (30-31 days) and years
762      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
763      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
764      months and years.  Requires pkg/cal.
765    o diagnostics: add pickup functionality
766      - off by default for backwards compatibility
767      - current version only uses MDSIO -- MNC will be added
768    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
769    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
770    
771    checkpoint57d_post
772    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
773    o modify verification/ideal_2D_oce so that it tests the creation of mnc
774      output from the diagnostics package
775    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
776    o make genmake2 more portable by using ".$FS" instead of ".f" for more
777      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
778    o add coordinate variables to the MNC output from the diagnostics package
779    o change MNC-flags default value: true when useMNC=TRUE
780    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
781      the ability (off by default) to read the grid information using MNC
782    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
783    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
784    o do snap-shot diagnostics at the middle of the time-interval (instead of
785      at the end).
786    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
787      new test for AIM with thSIce + slab-ocean
788    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
789    o move state variable diagnostics to the beginning of the time step ;
790      (note: still needs some work specially for snap-shot diagnostics)
791      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
792    
793    checkpoint57c_post
794    o Change testing option (-ieee) to get closer agreement between g77 & ifort
795    o generate new output.txt files on faulks with g77 & the new -ieee option
796    checkpoint57c_pre
797    
798    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
799      update output.txt of exp. global_ocean.90x40x15
800    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
801      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
802    o add saltFlux(+File) forcing capability with periodicExternalForcing
803    o allow to use pkg diagnostics for GM-Redi & ThSIce output
804    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
805    o improvements for the MNC output from DIAGNOSTICS:
806      - correct handling of the unlimitied dimension
807      - all dims now have associated coordinate variables
808      - variables located at U, V, and Corner ("Z") points are now written
809        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
810        *all* data points are output
811    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
812    o added pkg/seaice/seaice_monitor.F
813    o mdsio_readfield.F can now read files visible only to master MPI process.
814    o pkg/seaice: some test code for ice-modified ocean stress
815    o exf_getffields interpolation defaults to bilinear for all scalar forcing
816      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
817      spurious negative numbers for precipitation and humidity.  Will cause
818      some small numerical differences for integrations using pkg/exf/exf_interp.F.
819    o pkg/ctrl/
820      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
821        May be enabled via doPackDiag
822      *  introduce z-scaling of
823         + gradient (doZscalePack) and
824         + control (doZscaleUnpack)
825    o pkg/mdsio/
826      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
827      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
828    
829    checkpoint57b_post
830    o simplify options in diagnostics_fill arguments (remove weird combinations)
831    o fix MNC coordinate variables so that they now contain per-face index
832      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
833      general, EXCH2 grids are only aligned to a "local" coordinate system
834    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
835    o Implement instantaneous output within pkg diagnostics:
836      setting a negative frequency in data.diagnostics produces
837     "snap-shot" output (as opposed to time-average if freq > 0)
838    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
839      NOTE: change ptracer diagnostics name: use 2 characters to work with
840            more than 9 tracers. Add also diagnostics of advect & diffus flux.
841    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
842      becomes the coordinate variable for the 'T' dimension
843    o add CF-style coordinate variables to MNC
844      - just a first cut:  numbers are meaningless on the cubesphere and
845        missing along the T axis but otherwise it works!
846    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
847    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
848    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
849      this is based directly on what the model compute, so that the content of
850      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
851    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
852    o clean up build options files for SunOS, in particular
853      - remove -traditional from xmakedepend
854      - change -xarch=v9 to -xarch=native for f77
855      - restore use of make (not gmake)
856      - add CC=gcc if using g77
857    o changes per discussion of AM, JMC, & EH3 today:
858      - move redundant "grid" variables out of "state" -- in preparation of
859        creating proper CF-style coordinate variables and in recognition
860        that any/all grid variables can be easily copied (eg. w/NCO) from
861        the grid files into any of the other NetCDF files
862      - *always* output grid variables with MDSIO (this will eventually be
863        changed)
864      - output MNC grid file if useMNC is true
865    o every instance of _END_MASTER() has been found and replaced with
866      _END_MASTER( myThid ) in order to satisfy certain picky Sun
867      preprocessors
868    o re-arrange diagnostics pkg initialisation:
869     - allow each package to extend the available diagnostics list
870     - add some checking and fix small problems (multi-threaded, ...)
871     - new S/R diagnostics_fill (replace fill_diagnostics):
872       look through the short list of active diag. (instead of the long list)
873       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
874    
875    checkpoint57a_post
876    o this set of changes restores TAMC compatibility
877      tested for global_ocean.90x40x15 adjoint on trough
878      (what a pain)
879    
880    checkpoint57a_pre
881    o some modifs in tools/build_options for sunos
882    o call ctrl_pack for ctrl at end for optimcycle=0
883    
884    checkpoint57
885    o add horizontal bi-harmonic viscosity for vertical velocity
886      - new parameter viscA4W (defaults to viscA4)
887      - affects only non-hydrostatic code
888      - to be done: no-slip lateral boundary conditions
889    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
890    o implement Implicit Vertical advection for pTracers
891    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
892      (implemented also for implicit vertical diffusion & advection)
893    o OBCS: extend application of tracer open boundary conditions
894      to a strip beyond the boundary of width Olx/Oly
895    o add call monitor to TAF set of required calls (flow directives)
896      and include in natl_box_adjoint
897    o untangle a few ifdefs related to cost, ctrl, autodiff
898      untangel a few ALLOW_ECCO_OPTIMIZATION
899    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
900      (theta2, salt2 in ecco_cost_weights)
901    
902    checkpoint56c_post
903    o OBCS as control variables
904      - update ctrl_ad_diff.list, obcs_ad_diff.list
905      - remove balance of obcs controls from default
906      - fix index bug nobcs in ctrl_init
907      - fix dummy fields filen in ctrl_pack
908      - add dummy weights for obcs
909    o lsopt: comment out fort.94 output
910    o optim:
911      - remove unnecessary header files
912      - adjusted namelists
913      - add xerbla.F to Makefile
914    o exf:
915      - multiple modifications of exf_check_range
916      - unit change in exf_init_runoff from [m/year] to [m/s]
917    o mdsio:
918      - i/o-vector change debugLevel from debLevA to debLevB
919    
920    checkpoint56b_post
921    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
922      is called from DO_THE_MODEL_IO
923      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
924      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
925      - clean up PTRACERS_WRITE_TIMEAVE a little
926    o add another verification experiment that tests both the cfc-pkg and
927      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
928      reactive tendencies treated inline with regular timestepping
929    o testreport previously did a lousy job of comparing small numbers, so
930      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
931      implemented in the little c-progam tmp_cmpnum.c which is embedded in
932      testreport.
933    o ptracers_monitor: bug fix for MPI
934    
935    checkpoint56a_post
936    o GCHEM: finish reorganizating the package
937      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
938        (introduces another 3D-array for each passive tracer, but only if
939        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
940        gchemTendency is not needed because the timestep is done separately)
941      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
942      - GCHEM is now---more or less cleanly---separate from PTRACERS
943      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
944        so clear to me how that should be done in a general way.
945    o CFC: improve formatting of output in CFC_ATMOS
946    o PTRACERS:
947      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
948        that ALL experiments with ptracers enable can be checked. This makes
949        GCHEM_MONITOR obsolete.
950      - include a runtime parameter PTRACERS_monitorFreq that defaults to
951        monitorFreq
952      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
953    o add PTRACERS (PTR0[1-5]) to testreport output
954    o exf_check_range:
955      * default changed to .TRUE.
956      * will check values for niter0 if debLevA, every timestep if debLevB
957      * STOP in exf_check_range if 'out of range'
958      * range chosen generous to allow for potential extema
959      TBD: a version with stricter range
960           permitted range would be runtime parameters
961    o GMredi:
962      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
963      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
964      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
965    o GCHEM:
966      - move call to GCHEM_FORCING_SEP, so that it is now called before
967        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
968      - introduced a useGCHEM runtime flag and applied it everywhere.
969      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
970        this flag is now only visible within GCHEM-pkg routines.
971      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
972        be replaced by a 3D array that is computed before thermodynamics; for
973        this, the tracer ID iTracer had to be included into the parameter list
974        of ptracers_forcing
975      - set up forward_step to call gchem_forcing, that will replace
976        gchem_forcing_int in ptracers_forcing
977      - cleaning up
978    o small cleaning of exch2: remove files that are also in eesupp/src
979    
980    checkpoint56
981    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
982    o mnc: cleanup "full" files--fixes out-of-memory problem
983    o ECCO-GODAE
984      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
985      * fully merged and updated from SIO code
986        windstress sign change affects
987        - exf_inscal_[u/v]stress
988        - sign of xx_tau[u/v] adjustments
989        - signs in cost_scat
990      * ctrl_get_gen: avoid update of tau[u/v] for first few days
991      * natl_box_adjoint updated and compressed
992      * 2-level checkpoint switch added
993        (tested in EXP. 1 of natl_box_adjoint)
994      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
995    o SVD
996      * first complete, non-hacked version for SVD calculations
997      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
998        performed via direct access files admtlm_vector.it????
999        (via ctrl_[un]pack)
1000      * optimcycle is used for ARPACK iteration counter
1001        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1002      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1003        and add linear transforms where necessary
1004      * controls are initial/final SST, SSS (can be extended; need to check
1005        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1006    o mdsio: filename info to both stderr, stdout
1007    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1008      from sign change
1009    
1010    checkpoint55j_post
1011    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1012      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1013    o add consistent build directories and .cvsignore files to verification
1014    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1015    o make all subroutines 30 or less characters in length for certain older
1016      compilers to work (a thorough search only turns up two routines in
1017      pkg/ptracers)
1018    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1019      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1020    
1021    checkpoint55i_post
1022    o change arrays for total vertical diffusivity (2.D if explicit,
1023      3.D if implicit) ; each ptracer uses its own background value.
1024    o added mnc/NetCDF output capability to ocn_compon_interf
1025      - added bits to verification/cpl_aim+ocn so that it can run on
1026        ITRDA and other clusters without the mpirun "-wd" option
1027    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1028      configuration
1029    o give MNC the ability to create additional files rather than
1030      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1031      - the default is just less than 2GB which is a practical limit
1032        on many systems
1033    o Compute the non-local term using either KPP vertical diffusivity (=default)
1034       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1035    
1036    checkpoint55h_post
1037    o add verification test "vermix"
1038    o remove all the *_ioinc flags and replace with the single global
1039      outputTypesInclusive flag
1040    o allow to set a vertical profile of vertical diffusivity for T & S
1041    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1042    o useMNC moved from data.mnc to data.pkg
1043    
1044    checkpoint55g_post
1045    o Renaming carbon AD experiments to comply with testreport conventions
1046    o Updating adjoint of Held-Suarez hs94.1x64x5
1047    o Fixing directives for non-ECCO forward_step, after ECCO directives
1048      have been fixed to avoid recomp. of do_oceanic_phys
1049      Works well for global_ocean.90x40x15,
1050      but recomp. issue remains for carbon
1051    o Updating adjoint output for natl_box_adjoint after
1052      pkg/ecco has been modified (see taga c55d_post)
1053    
1054    checkpoint55f_post
1055    o rename to timeave_init_fixed
1056    
1057    checkpoint55e_post
1058    o some delicate re-shuffle of store directives to avoid one
1059      extra call of do_oceanic_physics
1060      affects ecco_the_main_loop.F, do_oceanic_physics.F
1061      checkpoint_lev1_directives.h
1062    o NB: this may break global_ocean adjoint temporarily,
1063      but it is clear how to fix it. Will do later, need this now.
1064    
1065    checkpoint55d_post
1066    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1067    o ecco_cost_weights is modified to 1x1 runs
1068    o modifs to allow observations to be read in as
1069      single file or yearly files
1070    o enable to read exf forcing fields as either
1071      single file or yearly files (flag useExfYearlyFields)
1072    checkpoint55d_pre
1073    
1074    o switch between 2-level and 3-level checkpointing
1075    o add ability of MNC to write local and "partial" (eg. 2D slices where
1076      the full 3D field is never actually stored) arrays to NetCDF files
1077      with the correct (that is, the complete multi-dimensional) set of
1078      array indicies
1079      - used in mom_vecinv() to write the diagFreq output
1080      - tested (demonstrated) in verification/aim.5l_cs
1081    o further mnc-ification
1082      - add verification/lab_sea to the list with mnc setups
1083      - fix undefined mnc v-names in cd_code
1084      - add kpp to mnc output (both snapshot and timeave)
1085    o non-hydrostatic code
1086      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1087        in calc_gw.F
1088      - defaults to viscAh
1089      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1090        friction or Leith) in non-hydrostatic mode, as long as there is
1091        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1092    o pkg/cost
1093      extend simple cost functions to treat time mean quantities
1094      (T,U,V) via cost_accumulate_state from cost_tile
1095    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1096        be 2 times larger than the minimum size the advection scheme requires.
1097        now get a perfect conservation of salt in advect_cs test-exp (updated)
1098    o GGL90 (Gaspar's TKE mixed layer)
1099      - add horizontal diffusion of TKE, requires exchanges in
1100        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1101        default. In OPA there is no horizontal diffusion of TKE but the
1102        mixing coefficients are computed from a horizontal average of TKE of
1103        6 points or so. I think that diffusion has a little more physical
1104        justification.
1105      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1106        was in vain)
1107      - mask tke-variable in ggl90_init
1108    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1109    o fix biharmonic diffusion on CS-grid.
1110    o more obcs stuff
1111      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1112        for reading boundary values. This routine is called from
1113        obcs_prescribe_read
1114      - updated obcs_check
1115      - changed sponge layer relaxation parameter units for days to seconds
1116      - turned off sponge layer by default
1117      - changed argument list of OBCS_CALC to myTime+deltaTclock
1118      - fixed about 35 bugs in obcs_external_fields_load
1119    
1120    checkpoint55c_post
1121    o obcs stuff
1122      - new runtime flags useOBCSprescribe, useOBCSbalance
1123      - re-arranged obcs_calc
1124      - moved exf_getobcs to obcs_prescibe_read
1125        obcs_prescibe_read is called after ORLANSKI stuff
1126        and independent of it (executable can contain all).
1127      - updated obcs_check
1128      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1129        These may be necessary only if tangential velocities are
1130        prescribed at OB, not sure, needs testing.
1131    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1132      which simplifies the calls and passes the ifc check-bounds test
1133    
1134    checkpoint55b_post
1135    o add a 2D scalar, Z location, exchange_2 routine.
1136    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1137      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1138      affects advect_cs results (for the wrong reason): update output.txt
1139    o use a more standard discretization for biharmonic viscosity ;
1140     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1141      affects results of dome set-up: update output.txt
1142    o fix gad_advection.F (CubedSphere part), back to version 1.23
1143    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1144    
1145    checkpoint55a_post
1146    o merged code to
1147      * prescribe/read time-dependent open boundaries
1148        (works in conjunction with exf, cal)
1149      * sponge layer code for open boundaries
1150      * each boundary N/S/E/W now has its own CPP option
1151        (healthy for the adjoint)
1152    
1153    checkpoint55
1154    o up-to-date adjoint of previous breaks
1155      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1156      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1157      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1158      - carbon: * remove tr1-related adjoint verification
1159                * add ptracer as control variable
1160    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1161      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1162    
1163    checkpoint54f_post
1164    o in verification/carbin/ remove experiment related to
1165      ALLOW_PASSIVE_TRACER (array tr1 etc)
1166      code_ad/ input_ad/ results_ad
1167    
1168    o add two new packages
1169      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1170        + subject to optimization (memory)
1171      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1172        + subject to reordering (many GOTOs in the original code)
1173        + so far opps is called for every (i,j) point, and then operates in
1174          the vertical; one may want to reorder the scheme in order operate in
1175          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1176          fields)
1177    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1178      - all verification tests compile and run with linux_ia32_g77
1179      - defaults are compatible with current input files--nothing
1180        should change if you were not previously using MNC
1181      - MNC output has been added in numerous places (eg. timeave)
1182        but there are still a few writes not yet do-able with MNC
1183        (this is in progress)
1184      - flags now allow for either/or/both use of MDSIO and MNC and
1185        documentation will soon follow
1186      - numerous small formatting cleanups for ProTeX
1187    o add version info (via BUILD_INFO.h) to MNC and stdout
1188    
1189    checkpoint54e_post
1190    o add two new packages
1191      - pp81 (Packanowski and Philander, 1981), Richardson number and
1192        stratification dependent mixing
1193      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1194      - these scheme operate in a similar manner as KPP (without ghat, of
1195        course), however there is only one diffusivity that is used for both
1196        temperature and salinity (and passive tracers)ç
1197    o add offline package
1198    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1199      provided by Stephanie Dutkiewicz
1200    o genmake2: add ability to search for C compilers and cleanup test output
1201      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1202    
1203    checkpoint54d_post
1204    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1205    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1206      leading to additional shift by 5 days each year of integration
1207       (i.e. leading to considerable offset over the years)
1208    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1209    o start with no AB and no initial filtering (staggerTimeStep):
1210      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1211    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1212      (external loading & cpl import/export stay in forward_step.F)
1213    o update coupling interface to work with new staggerTimeStep
1214    o change MDSIO ptracers_pickup.
1215    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1216    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1217    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1218    
1219    checkpoint54c_post
1220    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1221      this affects (truncation error) output.txt of test-exp:
1222       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1223    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1224    o change Qnet to always be the net heat flux, (+upward).
1225      affects (truncation error) output of natl_box exp.: updated
1226    o define the max number of passive tracers in PTRACERS_SIZE.h
1227    o start to test mnc routinely in exp0
1228    o add sea-ice loading (sIceLoad) as a new forcing field.
1229    
1230    checkpoint54b_post
1231    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1232       impressive on Altix and Opteron systems)
1233    o diagnostics can now write NetCDF files through the mnc package
1234    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1235    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1236    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1237      affects (truncation error) output of lab_sea & natl_box exp.: updated
1238    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1239    
1240    checkpoint54a_post
1241    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1242    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1243    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1244    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1245      + internal_wave (shift in writing cg2d_ini_res)
1246    checkpoint54a_pre
1247    
1248    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1249      - modified verification/lab_sea and natl_box_adjoint accordingly
1250    
1251    checkpoint54
1252    checkpoint53g_post
1253    o prepare splitting of thermodynamics: store convect.counter in common block
1254    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1255      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1256    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1257    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1258    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1259    o restore adjointability
1260    
1261    checkpoint53f_post
1262    o modifications that affect AIM experiment results (update output.txt):
1263      - no advection of S at top interface Nr (pkg/generic_advdiff)
1264      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1265    o AIM pkg:
1266      - include stability function into surf.Flux derivative relative to Tsurf
1267      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1268    
1269    checkpoint53e_post
1270    o merged cylindrical coord configuration
1271    o added rotating_tank experiment
1272    checkpoint53e_pre
1273    
1274    checkpoint53d_post
1275    o faulks upgraded: re-generate output.txt that have changed:
1276       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1277    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1278    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1279    o added Sadourny discretization of Coriolis
1280      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1281      - re-enabled use of omega3 (useAbsVorticity)
1282    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1283      vector-invariant equations
1284      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1285    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1286      hopefully without new bugs
1287      - still to do: biharmonic friction for non-hydrostatic w
1288    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1289    o regenerated output for global_ocean_ebm (using -ieee)
1290    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1291      of mom_common/
1292      - simple re-arrangement of instructions within computing loop
1293    checkpoint53d_pre
1294    
1295    checkpoint53c_post
1296    o new version of coupler for AIM+thSIce and Ocean models
1297     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1298     - land: change Evaporation of snow
1299     - aim with thSIce: fix bug in snow-precip.
1300    o changes to calc_gw.F
1301     - bug fix for w^2 term near the bottom boundary
1302     - (hopefully) improve the lateral slip boundary condtions for use with
1303        partial/looped cells
1304      - because the bug fix changes two verification experiments anyway (exp5
1305        and plume on slope), change the lateral boundary condition from half slip
1306        to the value of no_slip_sides
1307    o ebm package wasnt quite up to the parallel task. Fixed that.
1308    o Adjoint of EBM package + verification
1309      * TLM OK
1310      * ADM not sufficient accuracy yet (needs further testing)
1311    
1312    checkpoint53b_post
1313    o Commiting new energy balance model to repository
1314      * package is pkg/ebm
1315      * verif. is verification/global_ocean_ebm
1316      * references are in ebm_driver.F
1317    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1318    C        Global thermohaline circulation. Part I:
1319    C        Sensitivity to atmospheric moisture transport.
1320    C        J. Climate 12(1), 71-82
1321    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1322    C        Global thermohaline circulation. Part II:
1323    C        Sensitivity with interactive transport.
1324    C        J. Climate 12(1), 83-91
1325    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1326    C        Destabilization of the thermohaline circulation
1327    C        by atmospheric eddy transports.
1328    C        J. Climate 7(12), 1870-1882
1329    o Will need long integration testing.
1330    checkpoint53b_pre
1331    
1332    o created pkg/mom_common in preparation for variable viscosity code
1333    o renamed and split ini_mnc_io
1334    o pkg/land: only liquid water can diffuse or run-off
1335    o AIM using land: soil wetness availability account for snow
1336    o added printMapIncludesZeros to EEPARMS namelist
1337    
1338    checkpoint53a_post
1339    o restore TAMC compatiility for exf_constants.h
1340      (no usage of _d in .h)
1341    o Additional storing in KPP in an attempt to fix
1342      TAMC problem with adjoint of KPP code.
1343      (no success...)
1344      Identical code works fine with TAF.
1345    o Fixed verification/natl_box_adjoint experiments.
1346      Initial conditions for Experiments 4 and 5 are now
1347      set to "SEAICE_initialHEFF=0", which is more reasonable,
1348      and hence gives results closer to that of Experiment 2.
1349      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1350    
1351    checkpoint53
1352    o stable checkpoint with up to date adjoint
1353      TLM tests only run for 1st grdchk at the moment. Its unclear if
1354      this is a code problem or a problem with resetting code for g_
1355      variables that is being autogenerated wrong.
1356      Otherwise:
1357       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1358       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1359         are both still in chaos following their security messes.
1360    
1361    checkpoint52n_post
1362    o various build (mostly genmake2) changes including:
1363      - ability to build/run more easily within Cygwin and MacOS X
1364      - more complicated Makefiles with a stronger dependence on Gnu Make
1365    o pkg/seaice modifications
1366      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1367        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1368        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1369      - changed proxy for geostrophic velocity and updated
1370        verification/lab_sea/results/* accordingly
1371      - removed ADI dynamic solver from pkg/seaice
1372      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1373        they caused a segmentation fault under certain circumstances
1374      - removed unused field WATR
1375    o bug fix in exf-package:
1376      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1377         now reflect that.
1378    o small fixes in the cal-package:
1379      - set reference date to first of January for the 'model'-calendar
1380      - failing of cal_CheckDate in cal_FullDate now actually results in a
1381        warning
1382    o small modifications in exf-package to increase flexibility:
1383      - change climtempfreeze from a constant to a runtime parameter that
1384        is specified in data.exf_clim (default = -1.9)
1385      - introduce runtime parameter windstressmax (default = 2.0) that is
1386        specified in data.exf
1387    o fix in pkg/thsice:
1388      - update Evap (Tsf changes) to be consistent with Latent heat flux
1389      - maintain snow precipitation unchanged (even if Tsf >=0).
1390     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1391    
1392    checkpoint52m_post
1393    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1394      this does not change any of the results, because myIter=0 in swfrac always
1395      lead to jwtype=2 (the default anyway), but the call makes little sense
1396      as a default
1397    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1398    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1399      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1400    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1401    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1402    o extending useSingleCpuIO option to work with new exch2 I/O format
1403      - old-style, missing-tile I/O is still accessible by defining CPP
1404        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1405    o monitor package can write to NetCDF files and/or STDOUT
1406    o fix re-definition bug in MNC_GRID_INIT_ALL()
1407    o doc/api_reference added
1408      - a framework for building an API Reference Manual using all
1409        the "protex" comments embedded in the code
1410      - see pkg/generic_advdiff, pkg/mnc for examples
1411    o MNC:
1412      - make myThid the last argument for all subroutines
1413      - new default for the grid files: NO halos
1414      - add useMNC and other run-time flags
1415      - separate per-file-group handling of the unlimited dimension
1416      - early initialization of MNC w/ flags read at the eeboot stage
1417        and lookup tables set in initialize_fixed
1418      - write all MNC output to a freshly-created directory
1419    o thermodynamics sea-ice (thsice) is now tested with testreport.
1420    o test exp. advect_cs: use the standard cs32 grid ; update output.
1421    o Added functionality to grdchk:
1422      pick global i,j,k position (or nearest wet) where to perform check.
1423    
1424    checkpoint52l_post
1425    o new land formulation:
1426      a) use ground enthalpy as prognostic variable to ensure exact
1427         energy conservation.
1428      b) account for water temperature and for latent heat of freezing
1429         in all processes (rain, run-off, ground storage)
1430      c) compute surface and ground temperature implicitly.
1431    o aim_v23 modification for new land model:
1432      a) Treat separately land / ocean / sea-ice surface fluxes
1433         to allow implicit computation of land & sea-ice surface temp.
1434      b) add snow precipitation.
1435    checkpoint52l_pre
1436    
1437    o fix problem (when 1 tile is empty) in min/max monitor.
1438    o fix bug in timeAve (u,vZetatave in common block)
1439    o no restoring terms under ice for pkg/seaice
1440    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1441    o bug fix for pkg/seaice pickups
1442    o change MNC call locations and add coordinate attributes
1443    o mask vorticity at the corner ; affects global_ocean.cs output
1444    o fix ini_curvilinear_grid ; test CS experiments with mpi
1445    o aim.5l_cs: modify sea-ice fraction input file ; update output
1446    o exf: Adding simple range check routine for exf fields after read
1447    
1448    checkpoint52k_post
1449    o removed top-level directory "diags"
1450      - we migrated these functions to pkg/timeave a long time ago
1451    o fixed bug introduced in pkg/monitor
1452    o accuracy ctrlprec = 32 insuffient for gradient checks using
1453      averaged fields (I/O via cost_averages)
1454      -> use ctrl.h in active_file*.F to control I/O precision.
1455    o paramter list of CALL ADTHE_MAIN_LOOP
1456    o added initial do_the_model_io to ecco
1457    o set all ...Freq to zero after cost_final
1458      taveFreq, dumpFreq, pChkptFreq
1459    o MAIN and ECCO differentiability restored
1460    
1461    checkpoint52j_post
1462    o fix nchklev in tamc.h for global_ocean...
1463    o Bringing flow and store directives up-to-date
1464    o Really weird thing!
1465      call do_the_model_io from the_main_loop with parameters
1466      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1467      TAF places a faulty re-call of initialise_varia
1468      after cost_final call which should not be there!
1469    checkpoint52j_pre
1470    
1471    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1472      error messages
1473    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1474    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1475      debug output
1476    o modfied mdsio_writefield.F to handle non-global files under exch2
1477    o update AIM Cubed-Sphere exp (aim.5l_cs):
1478      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1479    o update AIM Equatorial Channel exp:
1480      use standard aim_v23 pkg and change the SST fields to be more realistic.
1481    o globalFile now works with exch2
1482    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1483      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1484    o limit timeave output for hi-res integrations
1485    
1486    checkpoint52i_post
1487    o removed CPP_EEOPTIONS.h from verification/*/code
1488    o updated the tiling for global_ocean_pressure
1489    checkpoint52i_pre
1490    
1491    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1492      the old pkg/aim).
1493    
1494    checkpoint52h_pre
1495    o shortened offending lines in exch2_send_rx?.template
1496    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1497    o genmake2: add build & execute test for NetCDF code
1498    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1499      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1500    o added useSingleCPUIO flag to monitor.F and mon_out.F
1501    o added temporary hack for sea-ice dynamics on the cube:
1502      metric terms are ignored and it is assumed that
1503      there is no sea-ice on cube faces 1, 2, 4, and 5.
1504    
1505    checkpoint52f_post
1506    o added exch2 cube routines to pkg/exch2
1507    o modified hs94.cs-32x32x5 to use it
1508    o added new grid files to hs94.cs-32x32x5
1509    checkpoint52f_pre
1510    
1511    checkpoint52e_post
1512    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1513      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1514    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1515      to work with implicit vertical advection and AB ;
1516    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1517    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1518     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1519    checkpoint52e_pre
1520    
1521    o fix bug in impldiff when Nr=1 or Nr=2.
1522  o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt  o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1523  o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.  o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1524  o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2  o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2

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