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revision 1.263 by dimitri, Tue Mar 2 08:45:46 2004 UTC revision 1.693 by jmc, Thu Jul 6 00:33:33 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    checkpoint58k_post
8    o testreport:
9     - always build in dir. "build" (if not there, mkdir build instead of building
10       & running in input)
11     - run in dir run (if it exists), in build otherwise.
12     - call prepare_run (if input/prepare_run exists)
13     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
14    o pkg/exf modifications to interpolation and rotation routines for more
15       reasonable treatment of North Pole singularity: for tracers North Pole
16       value is set to northernmost zonal-mean value, for zonal velocity it is
17       set to zero, and for meridional velocity it is set to northernmost value.
18    o pkg/exf/exf_check_range.F
19     - add tile index to diagnostics and move stop statement to the very
20       end of the routine.
21    o pkg/diagnostics: (diagnostics_main_init.F)
22      define title of isomorphic variables according to the current config.
23    o pkg/thsice with pkg/seaice dynamics:
24    - fix domain of computation (interior only, required for exf) and do exchanges
25    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
26    o towards a standard way of dealing with multi-threading in MONITOR
27      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
28    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
29       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
30    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
31    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
32    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
33       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
34    o tracer advection:
35     - clean-up and simplify calc_common_factors.F
36     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
37       advection subroutine (but still not used within DST advection S/R)
38    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
39    
40    checkpoint58j_post
41    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
42      from file (collects calls previously in FORWARD_STEP)
43    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
44    o adjoint store dir. adjusted accordingly
45    o genmake2
46      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
47    
48    checkpoint58i_post
49    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
50      on wind stress (SEAICEstressFactor defaults to 1.)
51    o Total number of Timers is finite (<=40): comment out 2 non-essential one
52      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
53    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
54      on CS-grid: no longer loosing mass.
55    o exf & curvilinear-grid: no longer modify longitude xC & xG.
56    o pkg/ggl90: fix sloppy output and fix a bug
57    o pkg/seaice: added SEAICEuseEVPpickup parameter
58      - Set to false in order to start EVP solver with
59        non-EVP pickup files when using SEAICEuseEVP
60      - fix sign error in diffusion in seaice_calc_rhs
61    
62    checkpoint58h_post
63    * Modifications for bottom topography control
64      o replace hFacC by _hFacC at various places
65      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
66      o add non-self-adjoint cg2d_nsa
67      o update autodiff support routines
68      o re-initialise hfac after ctrl_depth_ini
69      o works for 5x5 box, doesnt work for global_ocean.90x40x15
70    * Adding verification for 5x5 box (4-layer) bottom topography control
71    
72    checkpoint58g_post
73    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
74       used for mean seasonal cycle, mean diurnal cycle); add an example
75       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
76    o pkg/ggl90:
77      - add parameter (minimum surface kinetic energy)
78      - fix bug (avoiding division by zero)
79    o couple pkg/thsice to pkg/seaice:
80      - modify advection in seaice to accomodate new scalar fields to be advected
81      - only muliDimAdection scheme work with seaice/thsice
82      - mapping of thsice-variables to seaice-variables, back and forth
83      - does not break the verification experiments, but does not give the
84        desired results either
85    o pkg/seaice
86      - make (default) second order advection a bit less confusing?
87    
88    checkpoint58f_post
89    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
90      to pkg/seaice):
91      - new routines thsice_map_exf and thsice_get_exf provide the interface
92      - add an additional formal parameter to thsice_solve4temp
93    o pkg/exf:
94      - add new fields wspeed, snowprecip (to be able to couple to thsice)
95      - correct Stefan-Boltzmann constant
96      - new parameter for longwave surface emittance
97      - separate some stuff from exf_bulkformulae into new routines  
98        exf_radiation, exf_wind
99      - add new parameters and constants: longwave emissivity for ocean, ice
100        and snow, evaporation parameters over ice
101      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
102        either wind from stress or stress from wind
103    o pkg/thSIce:
104    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
105    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
106       and THSICE_CALC_THICKN
107    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
108    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
109      to make debugging easier.
110    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
111    o pkg/bulk_force:
112      - clean-up comments and parameters ;
113      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
114    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
115      generate new output for test-experiment: aim.5l_cs.thSI
116    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
117      testreport accordingly
118    
119    checkpoint58e_post
120    o SEAICE_CGRID adjoint done
121    o R_STAR adjoint implemented.
122      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
123      * need to sort out init. of h0facc, etc.
124    o Make pkg/profile fully independent of ecco,cost, etc. stuff
125      to be able to use it in pure forward.
126    
127    checkpoint58d_post
128    o upgrade simple test-experiment to tutorial example:
129     step.1: duplicate the experiment and (step.2) will remove the old copy.
130      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
131      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
132      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
133      tutorial_global_oce_biogeo    <- copy of dic_example
134      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
135      tutorial_plume_on_slope       <- copy of plume_on_slope
136      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
137      tutorial_global_oce_optim     <- empty for now (David ?)
138      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
139     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
140    o correct a sign problem in cost_scat.F
141    o obcs and ptracers: fix boundary conditions for advections schemes
142      with larger stencil
143    o thsice adjoint: start
144    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
145      completeness
146    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
147      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
148    o ptracers adjoint:
149      * avoid extensive recomputatations
150      * fix missing re-init. of gptr (missed by TAF)
151    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
152      me to turn off the excessive output to STDOUT that this package produces
153    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
154      and add those terms in Vector-Invariant formulation.
155    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
156      if the control period (xx_hfluxperiod etc) is 0
157    o in profiles pkg, clean routines and fix details
158    o in ecco pkg, reading ssh data:
159      fix problem in case the model does not start at iter0=0
160    o fix mnc-pickup/restart for ptracers
161    o new package prifiles:
162      code to compute profile-based cost by Gael Forget
163      (modifs in ecco, ctrl, autodiff)
164    o Benign bug fix in initialization (spotted by M. Mazloff) of
165      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
166    
167    checkpoint58c_post
168    o adjoint: finish NLFS adjoint and provide reference output in
169      verification/global_ocean.90x40x15/results_ad_nlfs
170    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
171      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
172      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
173      with SEAICE_CGRID defined.
174    o move calendarDumps from "data" to "data.cal" and clean-up the code
175      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
176    o add useEXF & useCAL flags (for now, set in hard-coded way)
177    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
178      (were missing in NH mode, and wrong in quasihydrostatic mode).
179      waiting for Chris updated version of calc_gw to add those CALLs.
180    o fix bug in quasihydrostatic S/R ;
181      add a test for this option: global_ocean.90x40x15.qshyd
182    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
183      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
184    o add on/off flag useOffLine for package OFFLINE
185    o seaice:
186      - modify advection so that it works also on the C-grid
187      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
188        problem in multi-tile runs with C-grid
189      - add flags for clipping ice velocities and/or masking solver forcing
190      - fix drag (ocean on ice) formulation and a bug that caused noise in the
191        C-grid solver
192      - added a few comments to seaice_diffusion.F
193      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
194        are now exclusive)
195      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
196        required re-ordering the code a little:
197       + make DAIRN global variable (defined in SEAICE)
198       + move computation of the viscosities eta and zeta into a new separate
199         routine (because I need to recompute them in seaice_ocean_stress.F)
200    
201    checkpoint58b_post
202    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
203      update output.txt of exp. aim.5l_cs.thSI
204    o various mnc cleanups and improvements:
205      + shrink lookup tables by factor of ~4
206      + better error reporting when running out of lookup space
207      + able to handle longer path/file names (up to 500 chars)
208    o adjoint:
209      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
210      - TBD: "hidden" mom_vecinv recomp. in dynamics
211    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
212     (allow to differentiate between forcing components using new integer flags:
213      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
214     and add new flag to put Dissipation tendency out of Adams-Bashforth.
215    o ecco
216      - enable trend removal from SSH anomaly obs.
217    o adjoint
218      - a fix for PmEpR when #undef EXACT_CONSERV
219      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
220      - try to fix "hidden" recomp. in forward_step for NLFS
221        (NLFS seems broken sometimes after I checked it in)
222    o seaice:
223     - add c-grid version of the dynamic solver:
224       + three new routines that are the c-grid substitute lsr, dynsolver
225         and ostres
226       + put a few fields that were local to dynsolver into global common
227         blocks, so that I can move the computation of stresses etc into
228         seaice_lsr (saves coding but may break the adjoint).
229     - replace more hardwired parameters by runtime parameters
230     - add ice masks that mask the rhs of the implicit solvers where there
231       is no ice (commented out in seaice_dynsolver, because i am not sure
232       if this works properly), eventually this should replace the clipping
233       of ice velocities in seaice_dynsolver to +/-40cm/s.
234    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
235      include it only where its needed
236    o move balancing of fluxes before the call of external_forcing_surf
237    o seaice:
238      - correct units of turning angles (now they are really in degrees)
239      - move computation of GWATX/Y out of main routine into dynsolver
240      - initialize GWATX/Y in seaice_init
241    o Apply mask on Fresh-Water flux (needed for SSH forcing).
242      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
243    o seaice: add runtime flags for turning angles (default to zero)
244    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
245      and trend from exf forcing and ctrl control adjustments
246    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
247      (since checkpoint57x_post)
248    o change the default rotation period to 86164.s = the Earth rotation
249    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
250      and based on a reference stratification. Tested within hs94.cs-32x32x5.
251    o seaice advection: add code for choosing between the default (2nd order
252      central differences) and multiDim advection schemes provided by
253      pkg/generic_advdiff
254    o seaice:
255      - removed all references to SEAICE_GRID.h fields from
256        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
257        (cubed-sphere configuration will change a little)
258      - grid computations in seaice_init are obsolete now.
259      - cleaned up code a little so that is easier to read (hopefully).
260      - added new (better?) discretizations of default advection and diffusion
261        (turn on with SEAICEuseFluxForm)
262      - replace 1 in 3d global fields by kSurface in growth.F
263      
264    checkpoint58a_post
265    o seaice:
266      - bug fix in advect.F
267    o shelfice:
268      - separate shelfice load anomaly from pload (breaks with time
269        dependent forcing), => introduce constant field shelficeLoadAnomaly.
270        Its default is 0., but it may be computed more cleverly from (unknown)
271        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
272        done offline. A good approximation of the pressure load anomaly is
273        necessary to avoid large initial adjustment processes underneath
274        deep-reaching shelfice.
275      - small fix in ISOMIP shelfice_thermodynamics
276      - add more sophisticated thermodynamics of Hellmer (1989), this is
277        now the default
278      - give a few constants more intuitive names
279    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
280      if bulk formulae are used in long integration (especially EmPmR). Turn
281      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
282      if balancePrintMean, the imbalance that is substracted is printed to
283      STDOUT.
284    o fix bug (typo) in obcs_apply_eta.F
285    o add a new package shelfice which enables us to model the circulation
286      underneath shelf-ice with draughts of hundreds of meters.
287     - works
288     - to do: + include improved thermodynamics
289              + check whether kSurfC (from model/inc/SURFACE.h) can be used
290                instead of new field kTopC
291              + can we use topoFile, Ro_surf and existing code in ini_depth.F
292                instead of new field R_shelfIce and new code in ini_depth.F
293                and ini_mask_etc.F?
294              + adjust vertical mixing schemes?
295    o seaice pkg:
296     - add a cpp-flag to include a simple formula for a salinity dependent
297       freezing point of sea water at the surface
298     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
299       meridional stresses are now different (and hopefully correct)
300    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
301       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
302       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
303    o pkg/diagnostics: add options and parameters for regional-statistics
304       diagnostics ; define regions by reading a region-mask from a file
305       (might add other options later)
306    o pkg/bulk_force:
307     - add option and parameters to use AIM surface-flux formulae.
308     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
309       others forcing fields (defined in PARM05, parameter file "data") are loaded
310       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
311     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
312     - use the right EXCH call for uwind,vwind (to work on CS-grid).
313     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
314       and parameters (note: calcWindStress replaces .NOT.readwindstress).
315     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
316    
317    checkpoint58
318    o add "--embed-source" option to genmake2 which, when the supporting
319      tools can be compiled (as determined by genmake2) will turn on the
320      embed_files package which then embeds the entire MITgcm source code
321      (*.[fFhc] + Makefile) used for the build within the executable
322      - requested by CNH but off by default
323      - adds a paltry <9MB to the mitgcmuv executable in most cases
324      - only writes the output when useEMBEDSRC in eedata is true
325    o clean up 3-dim. relaxation codes:
326      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
327      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
328      * Thanks to Tom Haine for testing!
329    
330    checkpoint57z_post
331    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
332      affects output (@ truncation level) of exp. plume_on_slope ; updated.
333    o fix the pickup behavior for obcs in combination with ptracers
334    o fix a bug in ptracers_external_fields_load
335    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
336      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
337    o transfered surface NH pressure to eta field (if exactConserv).
338    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
339         and update lab_sea output.txt file.
340    o completing 3-dim. relaxation code: additional term
341         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
342      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
343      * At compile time, in "EXF_OPTIONS.h" set
344          #define  ALLOW_CLIMTEMP_RELAXATION
345          #define  ALLOW_CLIMSALT_RELAXATION
346      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
347          tauThetaClimRelax3Dim = 15552000.0,
348          tauSaltClimRelax3Dim  = 15552000.0,
349      * 3 cases:
350          1) Use a constant-in-time 3-dim. field
351          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
352          3) Real-time relax. to time-evolving prescribed field
353    o Adding Laplacian-type smoothness constraint on
354      initial and boundary (forcing) controls (ic, bc)
355      * enable at compile-time via
356        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
357      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
358      * Absolute scale somewhat unclear so far
359      * no area weighting was included since no other cost term does so far
360    
361    checkpoint57y_post
362    First step for a NLFS adjoint
363    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
364    o new init. routines for calc_r_star, calc_surf_dr
365    o still need to deal with ini_masks_etc
366    o testreport seemed happy
367    checkpoint57y_pre
368    
369    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
370    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
371    o add new offset feature to offline pkg (plus minor cleanup)
372    o cfc fixes for final year of integration
373    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
374      be in GCHEM_OPTIONS).
375    
376    checkpoint57x_post
377    o fix testreport Pb in multiple test experiment.
378    o cleanup our namelist syntax in verification:
379      - make it more F95 standards compliant (some work still needed)
380      - allows the vast majority of our tests to work with gfortran
381    o Non-Hydrostatic:
382     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
383     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
384    o Allow to apply AB on T,S rather than on AB(gT,gS):
385     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
386     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
387       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
388     - need a "clever" read_pickup to restart from the other AB formulation
389    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
390    o remove some unused variables (reduces number of compiler warnings)
391    o adjoint
392      * Disable useVariableViscosity for adjoint for time being
393        (there are a number of extensive recomputations)
394      * Initialize certain variables needed for adjoint
395    
396    checkpoint57w_post
397    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
398                 fix the singleCpuIO RS version of MDSWRITEFIELD
399       and add a WARNING if using globalFiles=T with multi-processors.
400    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
401      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
402    o tracer advection scheme:
403      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
404       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
405       was not very convenient).
406      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
407       (further tests needed for the implicit DST & Flux-Limiter schemes).
408    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
409      and sRef for convenience, handy, when you want to initialize
410      ptracers in a large domain with a constant non-zero value. Also,
411      untangle ptracers_init.F a little.
412    
413    checkpoint57v_post
414    o change dome exp. to use variable viscosity in side-drag terms.
415    o remove all the files from the cfc_offline test since they are now
416      incorporated into tutorial_cfc_offline which has been producing
417      identical results for a few days of testing
418    o add new parameter: sideDragFactor to enable half-slip-side BC
419      and change side-drag S/R to use viscosity from mom_calc_visc
420      (can switch back by setting sideDragFactor=0.); affects results at
421      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
422       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
423    o vorticity & strain are now computed without masking, to account for
424      no-slip-side BC in variable viscosity calculation ; mask is applied
425      anyway later on, before computing advection/coriolis terms.
426    o modify exp4 to test new obcs support for reading from external files
427      and for passive tracers
428    o fix behavior of ptracers_monitor when monitor output is written to a
429      netcdf-file; still not independent of monitor.F (writes in the same
430      file).
431    o change default value of tRef (put a uniform, meaningful value for ocean
432      & atmos) and initialize sRef (was missing, as Martin mentioned).
433    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
434      to be proportional to enstrophy dissipation length.  Thus,
435       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
436      This is now consistent with Smagorinsky and with the manual.
437    
438    checkpoint57u_post
439    o OBCS and PTRACERS: add open boundary support for passive tracers
440      - either use homogenous (pseudo) v.Neumann conditions or prescribe
441        OB-values from file; this is not different from the way theta and salinity
442        are treated
443      - however, Orlanski-radiation conditions are not supported, and the model
444        will stop if you use pTracers and Orlanski at the same time.
445      - beefed up the rountine obcs_external_fields_load: now only those open
446        boundary values are overwritten with values from files for which there
447        are really files, otherwise the OB-fields remain untouched. This makes
448        it possible to use different OBs at different ends of the domain (as
449        with EXF)
450    o reduce number of exch calls in shap_filt (s2).
451    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
452      truncation level) 4/5 MLAdjust test results (11&12 digits match).
453    
454    checkpoint57t_post
455    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
456    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
457      same truncation, independent of the face number: affects affects several
458      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
459    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
460      note that biharmonic viscosity + no-slip was not tested in any experiment.
461    o fix bug in non-linear free-surf side-drag ; generate new output for
462      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
463    o make mnc honor the writeBinaryPrec flag for most kinds of output
464    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
465    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
466      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
467    o add brackets in multi-terms sum to get same truncation, independent of
468      the face number (manage to get exactly same value of gU,gV at the cs-edge)
469      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
470    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
471      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
472      a maximum grid-scale Reynolds number.  Also, changes all length calculations
473      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
474      Suggested values of viscosity parameters found in mom_calc_visc.
475      Many new viscosity diagnostics available.
476    
477    checkpoint57s_post
478    o Add clearing-house for viscosity calculations, mom_calc_visc and
479      correct numerous bugs in LeithD and Smagorinsky discretizations.  
480      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
481      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
482      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
483      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
484      The Strain-Tension form is now called with useStrainTensonVisc=.true.
485      ViscAhStrain and viscAhTension are now retired.
486    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
487    o In response to JMC's bug report, genmake2 now ignores any soft-links
488      that it finds in the *current* directory when searching for files.
489      Soft-links found in any other source directories will still work as
490      they did before.
491    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
492      a C routine to unlimit the stack size
493    o mnc-ify pkg/aim snapshot vars
494    o mnc-ify pkg/land as requested by Daniel
495    o various changes to mnc including:
496      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
497      - output can now be grouped so that all files within a group
498          change the ITER portion of their names in lock-step together
499      - can now read ("global") PER-FACE (in addition to PER-TILE) files
500          and works with both EXCH1 and EXCH2 (but needs more testing)
501      - writing works for all verification test cases w/ g77 on Linux
502    
503    checkpoint57r_post
504    o make MNC variable initialization happen earlier
505    o add diagnostics for (almost) each term of the momentum Eq.
506    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
507    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
508    o remove MINIMAL_TAVE_OUTPUT option ;
509      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
510    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
511      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
512    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
513    o add time-dependent SST, SSS control
514    o cost terms in ecco/ modularized (new cost_generic.F)
515    o cost_averages routines are modularized (new cost_averagesgeneric.F)
516    o new infrastructure for seaice model vs. obs misfits in seaice/
517      * driver from the_main_loop.F is seaice_cost_driver.F
518      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
519      * gradient check in Exp. 6a of natl_box_adjoint/
520    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
521      (see README file)
522    
523    checkpoint57q_post
524    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
525    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
526      - bug was reported by Jean-Michel and Ian Fenty
527    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
528      update exp. cpl_aim+ocn output.
529    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
530      Needed for high-res. runs with large global files
531      to be able to limit tapelev size
532    o Changed some tests for adjoint:
533      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
534      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
535      * global_ocean.90x40x15/ back to default 3-level checkpointing
536    o Modifications to enable scripted COMMON to MODULE conversion
537      * verification/OpenAD/code/ has necessary scripts and description;
538      * converts, compiles and runs successfully;
539    
540    checkpoint57p_post
541    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
542    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
543      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
544    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
545    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
546      (was already the case for dissipation with mom_vecinv,
547       and also the case for grad.PhiHyd when staggered-timeStep)
548      This will allow to put dissipation out-off the AB time-stepping.
549     Unfortunately, affects truncation error. Update output of exp. that "fails"
550      (cg2d matching number) and leave the others for later: front_relax(10),
551      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
552      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
553    
554    checkpoint57o_post
555    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
556      (2) its ready to be documented during the 20050801 DocFest
557    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
558      for ideal_2D_oce and lab_sea on linux_ia32_g77
559    o set to #undef CTRL_SET_OLD_MAXCVARS_30
560      in global1x1_tot/code_seaice_adj to access indices 32, 33
561      (worth another tag)
562    
563    checkpoint57n_post
564    o adding precip control xx_precip 32
565    o adding swflux control xx_swflux 33
566    o Replacing 10 forcing penalty cost routines by 1 generic.
567    o Implementing partitioning in time-mean and variable adjustment
568      for atmos. state.
569    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
570    o in natl_box_adjoint:
571      * updated exp 1 to 10
572        (but does not have time-mean vs. variable split results yet)
573    o updated global1x1/*_seaice_adj/
574      to incorporate latest changes
575    o enable useSingleCpuIO for mdsio vector routines
576      (applies in particular to tapelev I/O)
577    o removed inefficient K-loop in all active_file*control*.F
578    
579    checkpoint57m_post
580    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
581      and advect_cs (use EXCH-2 and standard cs-32 grid files).
582    o pkg/exch2: filling of face-corner halo regions is optional
583      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
584    
585    checkpoint57l_post
586     tag before updating tutorials (pre-release-2)
587    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
588       for output and interpolation of input fields onto model grid)
589    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
590       Affects results of exp. rotating_tank ; update output.txt.
591    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
592          and taking the square quantity and/or using a fraction-weight field.
593    o fix aim_diagnostics_init.F mate numbers.
594    o add mnc output capability to diagnostics/diagstat and update
595      our cvsignore files for the ACSII output generated
596    
597    checkpoint57k_post
598    o lab_sea now uses diagnostics package and provides a suite of
599      new EXF diagnostics output.
600    
601    checkpoint57j_post
602    o exf
603      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
604        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
605        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
606      * extended diagnostics output
607        - now includes all EXF variables
608        - hs, hl moved to common block
609        - separate S/R for diagnostics, called after ctrl vector is added
610        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
611        - EXFqnet contains true Qnet (i.e. includes qsw)
612      * updated verif. lab_sea, global_with_exf
613      * Rearranging hflux (exf_mapfields -> exf_getforcing)
614        to ensure that diagnostics sees a true EXFqnet
615    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
616    o diagnostics pkg: change pointers so that 1 diagnostic can be used
617      several times with different frequencies.
618    o mnc-ify the thsice package as requested by Daniel Enderton
619      - the monitor--MNC output needs work
620      - many attributes need to be added (most are currently blank)
621    o mnc-ify theaim_v23 package as requested by Daniel Enderton
622      - many attributes need to be added (most are currently blank)
623    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
624    o add Sadourny like discretization to the 4th.O vorticity advection scheme
625    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
626      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
627         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
628    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
629     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
630    
631    checkpoint57i_post
632    o Diagnostics package was changed: diagnostic allocation is now deactivated
633      by setting an empty file name in the namelist (used to be by setting 0 frequency)
634    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
635      add 1rst Order upwind vertical Shear.
636    o add a quick fix for A/B checkpointing in OFFLINE mode
637    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
638      end-run around the C/Fortran linking horror in eesup/src/timers.F
639    o added pkg/runclock: allows user to terminate run based on wall clock
640    o added non-hydrostatic scaling parameter: nh_am2
641    o pkg/my82: futile attempt to make results compiler-independent by adding
642      some "_d 0", etc. no effect.
643    o for mnc output, fill the 'T' coordinate var with myTime and create a
644      separate 'iter' variable for iteration count
645    o pkg/diagnostics:
646      add new capability: output of Global/Regional & per-level statistics ;
647      tested against monitor output (including land & thSIce) on various exp.
648    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
649    
650    checkpoint57h_done
651      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
652      data.diagnostics, data.gchem, data.ptracers) is done.
653    
654    o pkg/diagnostics: prepare for Global/Regional statistics.
655      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
656    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
657      and rename it: DIFFERENT_MULTIPLE
658    
659    checkpoint57h_post
660    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
661    o pkg/diagnostics: change output frequency, now in seconds (instead
662      of Nb of iterations). This requires to change data.diagnostics.
663    checkpoint57h_pre
664    
665    o in mnc, let the user create the output dir if both mnc_outdir_date
666      and mnc_outdir_num are false
667    o add fflags() to pkg/diagnostics which allows one to specify, on a
668      per-file basis, the file precision [default behavior is unchanged]
669    o added diagnostics to pkg/kpp, including computation of mixed layer
670      depth based on a temperature/density criterion
671    o updated verification/natl_box to test the new pkg/kpp diagnostics
672    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
673    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
674    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
675      not mnc -- this mistake was found by JMC and is now corrected
676    
677    checkpoint57g_post
678    o add Adams-Bashforth 3rd Order time stepping:
679      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
680      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
681    checkpoint57g_pre
682    
683    o make lambda[Theta,Salt]ClimRelax spatially varying
684      (default remains spatially uniform constant based on tau)
685    o added new control variables
686      * init. uVel, vVel, etanN
687      * lambda[Theta,Salt]ClimRelax
688    o separate masks used for ctrl_pack/unpack 'from write_grid' output
689      (suggested by G. Forget)
690    
691    checkpoint57f_post
692    o add parameter "baseTime" = model base time = time at iteration zero
693      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
694      account for baseTime shift
695    o move Coriolis arrays from PARAMS.h to GRID.h
696    checkpoint57f_pre
697    
698    o mnc-ifying the seaice package
699    o introduced an alternative length scale calculation for use in the limiting
700      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
701    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
702    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
703      as well as grad(vort3).  Made it compatible with both approximate form
704      for the cubed sphere and full form of these gradients.  Added flag
705      useFullLeith to select between approximate and full form.  
706    o add "d0" in getcon.F to reduce differences between compilers/platforms
707      update output.txt of exp. fizhi-gridalt-hs
708    o change port_rand funtion to allow to set the seed.
709    o fix obscure MNC bug involving conversion between reals and integers
710      - it caused no problems with certain (eg. gcc, ifc) compilers but the
711        new version is now more standards-compliant
712    o adjoint-related modifications
713      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
714      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
715      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
716    
717    checkpoint57e_post
718    o Adding eddy stress controls a la Ferreira et al.
719    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
720    
721    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
722      update output.txt of exp. fizhi-gridalt-hs
723    o add more "Z" dimensions and associated coordinate vars to MNC
724    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
725    o parameter calendarDumps: when set, approximate months (30-31 days) and years
726      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
727      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
728      months and years.  Requires pkg/cal.
729    o diagnostics: add pickup functionality
730      - off by default for backwards compatibility
731      - current version only uses MDSIO -- MNC will be added
732    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
733    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
734    
735    checkpoint57d_post
736    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
737    o modify verification/ideal_2D_oce so that it tests the creation of mnc
738      output from the diagnostics package
739    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
740    o make genmake2 more portable by using ".$FS" instead of ".f" for more
741      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
742    o add coordinate variables to the MNC output from the diagnostics package
743    o change MNC-flags default value: true when useMNC=TRUE
744    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
745      the ability (off by default) to read the grid information using MNC
746    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
747    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
748    o do snap-shot diagnostics at the middle of the time-interval (instead of
749      at the end).
750    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
751      new test for AIM with thSIce + slab-ocean
752    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
753    o move state variable diagnostics to the beginning of the time step ;
754      (note: still needs some work specially for snap-shot diagnostics)
755      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
756    
757    checkpoint57c_post
758    o Change testing option (-ieee) to get closer agreement between g77 & ifort
759    o generate new output.txt files on faulks with g77 & the new -ieee option
760    checkpoint57c_pre
761    
762    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
763      update output.txt of exp. global_ocean.90x40x15
764    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
765      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
766    o add saltFlux(+File) forcing capability with periodicExternalForcing
767    o allow to use pkg diagnostics for GM-Redi & ThSIce output
768    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
769    o improvements for the MNC output from DIAGNOSTICS:
770      - correct handling of the unlimitied dimension
771      - all dims now have associated coordinate variables
772      - variables located at U, V, and Corner ("Z") points are now written
773        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
774        *all* data points are output
775    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
776    o added pkg/seaice/seaice_monitor.F
777    o mdsio_readfield.F can now read files visible only to master MPI process.
778    o pkg/seaice: some test code for ice-modified ocean stress
779    o exf_getffields interpolation defaults to bilinear for all scalar forcing
780      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
781      spurious negative numbers for precipitation and humidity.  Will cause
782      some small numerical differences for integrations using pkg/exf/exf_interp.F.
783    o pkg/ctrl/
784      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
785        May be enabled via doPackDiag
786      *  introduce z-scaling of
787         + gradient (doZscalePack) and
788         + control (doZscaleUnpack)
789    o pkg/mdsio/
790      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
791      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
792    
793    checkpoint57b_post
794    o simplify options in diagnostics_fill arguments (remove weird combinations)
795    o fix MNC coordinate variables so that they now contain per-face index
796      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
797      general, EXCH2 grids are only aligned to a "local" coordinate system
798    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
799    o Implement instantaneous output within pkg diagnostics:
800      setting a negative frequency in data.diagnostics produces
801     "snap-shot" output (as opposed to time-average if freq > 0)
802    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
803      NOTE: change ptracer diagnostics name: use 2 characters to work with
804            more than 9 tracers. Add also diagnostics of advect & diffus flux.
805    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
806      becomes the coordinate variable for the 'T' dimension
807    o add CF-style coordinate variables to MNC
808      - just a first cut:  numbers are meaningless on the cubesphere and
809        missing along the T axis but otherwise it works!
810    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
811    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
812    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
813      this is based directly on what the model compute, so that the content of
814      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
815    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
816    o clean up build options files for SunOS, in particular
817      - remove -traditional from xmakedepend
818      - change -xarch=v9 to -xarch=native for f77
819      - restore use of make (not gmake)
820      - add CC=gcc if using g77
821    o changes per discussion of AM, JMC, & EH3 today:
822      - move redundant "grid" variables out of "state" -- in preparation of
823        creating proper CF-style coordinate variables and in recognition
824        that any/all grid variables can be easily copied (eg. w/NCO) from
825        the grid files into any of the other NetCDF files
826      - *always* output grid variables with MDSIO (this will eventually be
827        changed)
828      - output MNC grid file if useMNC is true
829    o every instance of _END_MASTER() has been found and replaced with
830      _END_MASTER( myThid ) in order to satisfy certain picky Sun
831      preprocessors
832    o re-arrange diagnostics pkg initialisation:
833     - allow each package to extend the available diagnostics list
834     - add some checking and fix small problems (multi-threaded, ...)
835     - new S/R diagnostics_fill (replace fill_diagnostics):
836       look through the short list of active diag. (instead of the long list)
837       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
838    
839    checkpoint57a_post
840    o this set of changes restores TAMC compatibility
841      tested for global_ocean.90x40x15 adjoint on trough
842      (what a pain)
843    
844    checkpoint57a_pre
845    o some modifs in tools/build_options for sunos
846    o call ctrl_pack for ctrl at end for optimcycle=0
847    
848    checkpoint57
849    o add horizontal bi-harmonic viscosity for vertical velocity
850      - new parameter viscA4W (defaults to viscA4)
851      - affects only non-hydrostatic code
852      - to be done: no-slip lateral boundary conditions
853    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
854    o implement Implicit Vertical advection for pTracers
855    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
856      (implemented also for implicit vertical diffusion & advection)
857    o OBCS: extend application of tracer open boundary conditions
858      to a strip beyond the boundary of width Olx/Oly
859    o add call monitor to TAF set of required calls (flow directives)
860      and include in natl_box_adjoint
861    o untangle a few ifdefs related to cost, ctrl, autodiff
862      untangel a few ALLOW_ECCO_OPTIMIZATION
863    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
864      (theta2, salt2 in ecco_cost_weights)
865    
866    checkpoint56c_post
867    o OBCS as control variables
868      - update ctrl_ad_diff.list, obcs_ad_diff.list
869      - remove balance of obcs controls from default
870      - fix index bug nobcs in ctrl_init
871      - fix dummy fields filen in ctrl_pack
872      - add dummy weights for obcs
873    o lsopt: comment out fort.94 output
874    o optim:
875      - remove unnecessary header files
876      - adjusted namelists
877      - add xerbla.F to Makefile
878    o exf:
879      - multiple modifications of exf_check_range
880      - unit change in exf_init_runoff from [m/year] to [m/s]
881    o mdsio:
882      - i/o-vector change debugLevel from debLevA to debLevB
883    
884    checkpoint56b_post
885    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
886      is called from DO_THE_MODEL_IO
887      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
888      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
889      - clean up PTRACERS_WRITE_TIMEAVE a little
890    o add another verification experiment that tests both the cfc-pkg and
891      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
892      reactive tendencies treated inline with regular timestepping
893    o testreport previously did a lousy job of comparing small numbers, so
894      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
895      implemented in the little c-progam tmp_cmpnum.c which is embedded in
896      testreport.
897    o ptracers_monitor: bug fix for MPI
898    
899    checkpoint56a_post
900    o GCHEM: finish reorganizating the package
901      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
902        (introduces another 3D-array for each passive tracer, but only if
903        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
904        gchemTendency is not needed because the timestep is done separately)
905      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
906      - GCHEM is now---more or less cleanly---separate from PTRACERS
907      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
908        so clear to me how that should be done in a general way.
909    o CFC: improve formatting of output in CFC_ATMOS
910    o PTRACERS:
911      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
912        that ALL experiments with ptracers enable can be checked. This makes
913        GCHEM_MONITOR obsolete.
914      - include a runtime parameter PTRACERS_monitorFreq that defaults to
915        monitorFreq
916      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
917    o add PTRACERS (PTR0[1-5]) to testreport output
918    o exf_check_range:
919      * default changed to .TRUE.
920      * will check values for niter0 if debLevA, every timestep if debLevB
921      * STOP in exf_check_range if 'out of range'
922      * range chosen generous to allow for potential extema
923      TBD: a version with stricter range
924           permitted range would be runtime parameters
925    o GMredi:
926      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
927      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
928      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
929    o GCHEM:
930      - move call to GCHEM_FORCING_SEP, so that it is now called before
931        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
932      - introduced a useGCHEM runtime flag and applied it everywhere.
933      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
934        this flag is now only visible within GCHEM-pkg routines.
935      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
936        be replaced by a 3D array that is computed before thermodynamics; for
937        this, the tracer ID iTracer had to be included into the parameter list
938        of ptracers_forcing
939      - set up forward_step to call gchem_forcing, that will replace
940        gchem_forcing_int in ptracers_forcing
941      - cleaning up
942    o small cleaning of exch2: remove files that are also in eesupp/src
943    
944    checkpoint56
945    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
946    o mnc: cleanup "full" files--fixes out-of-memory problem
947    o ECCO-GODAE
948      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
949      * fully merged and updated from SIO code
950        windstress sign change affects
951        - exf_inscal_[u/v]stress
952        - sign of xx_tau[u/v] adjustments
953        - signs in cost_scat
954      * ctrl_get_gen: avoid update of tau[u/v] for first few days
955      * natl_box_adjoint updated and compressed
956      * 2-level checkpoint switch added
957        (tested in EXP. 1 of natl_box_adjoint)
958      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
959    o SVD
960      * first complete, non-hacked version for SVD calculations
961      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
962        performed via direct access files admtlm_vector.it????
963        (via ctrl_[un]pack)
964      * optimcycle is used for ARPACK iteration counter
965        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
966      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
967        and add linear transforms where necessary
968      * controls are initial/final SST, SSS (can be extended; need to check
969        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
970    o mdsio: filename info to both stderr, stdout
971    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
972      from sign change
973    
974    checkpoint55j_post
975    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
976      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
977    o add consistent build directories and .cvsignore files to verification
978    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
979    o make all subroutines 30 or less characters in length for certain older
980      compilers to work (a thorough search only turns up two routines in
981      pkg/ptracers)
982    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
983      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
984    
985    checkpoint55i_post
986    o change arrays for total vertical diffusivity (2.D if explicit,
987      3.D if implicit) ; each ptracer uses its own background value.
988    o added mnc/NetCDF output capability to ocn_compon_interf
989      - added bits to verification/cpl_aim+ocn so that it can run on
990        ITRDA and other clusters without the mpirun "-wd" option
991    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
992      configuration
993    o give MNC the ability to create additional files rather than
994      exceeding a specified file size limit "MNC_MAX_FILESIZE"
995      - the default is just less than 2GB which is a practical limit
996        on many systems
997    o Compute the non-local term using either KPP vertical diffusivity (=default)
998       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
999    
1000    checkpoint55h_post
1001    o add verification test "vermix"
1002    o remove all the *_ioinc flags and replace with the single global
1003      outputTypesInclusive flag
1004    o allow to set a vertical profile of vertical diffusivity for T & S
1005    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1006    o useMNC moved from data.mnc to data.pkg
1007    
1008    checkpoint55g_post
1009    o Renaming carbon AD experiments to comply with testreport conventions
1010    o Updating adjoint of Held-Suarez hs94.1x64x5
1011    o Fixing directives for non-ECCO forward_step, after ECCO directives
1012      have been fixed to avoid recomp. of do_oceanic_phys
1013      Works well for global_ocean.90x40x15,
1014      but recomp. issue remains for carbon
1015    o Updating adjoint output for natl_box_adjoint after
1016      pkg/ecco has been modified (see taga c55d_post)
1017    
1018    checkpoint55f_post
1019    o rename to timeave_init_fixed
1020    
1021    checkpoint55e_post
1022    o some delicate re-shuffle of store directives to avoid one
1023      extra call of do_oceanic_physics
1024      affects ecco_the_main_loop.F, do_oceanic_physics.F
1025      checkpoint_lev1_directives.h
1026    o NB: this may break global_ocean adjoint temporarily,
1027      but it is clear how to fix it. Will do later, need this now.
1028    
1029    checkpoint55d_post
1030    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1031    o ecco_cost_weights is modified to 1x1 runs
1032    o modifs to allow observations to be read in as
1033      single file or yearly files
1034    o enable to read exf forcing fields as either
1035      single file or yearly files (flag useExfYearlyFields)
1036    checkpoint55d_pre
1037    
1038    o switch between 2-level and 3-level checkpointing
1039    o add ability of MNC to write local and "partial" (eg. 2D slices where
1040      the full 3D field is never actually stored) arrays to NetCDF files
1041      with the correct (that is, the complete multi-dimensional) set of
1042      array indicies
1043      - used in mom_vecinv() to write the diagFreq output
1044      - tested (demonstrated) in verification/aim.5l_cs
1045    o further mnc-ification
1046      - add verification/lab_sea to the list with mnc setups
1047      - fix undefined mnc v-names in cd_code
1048      - add kpp to mnc output (both snapshot and timeave)
1049    o non-hydrostatic code
1050      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1051        in calc_gw.F
1052      - defaults to viscAh
1053      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1054        friction or Leith) in non-hydrostatic mode, as long as there is
1055        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1056    o pkg/cost
1057      extend simple cost functions to treat time mean quantities
1058      (T,U,V) via cost_accumulate_state from cost_tile
1059    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1060        be 2 times larger than the minimum size the advection scheme requires.
1061        now get a perfect conservation of salt in advect_cs test-exp (updated)
1062    o GGL90 (Gaspar's TKE mixed layer)
1063      - add horizontal diffusion of TKE, requires exchanges in
1064        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1065        default. In OPA there is no horizontal diffusion of TKE but the
1066        mixing coefficients are computed from a horizontal average of TKE of
1067        6 points or so. I think that diffusion has a little more physical
1068        justification.
1069      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1070        was in vain)
1071      - mask tke-variable in ggl90_init
1072    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1073    o fix biharmonic diffusion on CS-grid.
1074    o more obcs stuff
1075      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1076        for reading boundary values. This routine is called from
1077        obcs_prescribe_read
1078      - updated obcs_check
1079      - changed sponge layer relaxation parameter units for days to seconds
1080      - turned off sponge layer by default
1081      - changed argument list of OBCS_CALC to myTime+deltaTclock
1082      - fixed about 35 bugs in obcs_external_fields_load
1083    
1084    checkpoint55c_post
1085    o obcs stuff
1086      - new runtime flags useOBCSprescribe, useOBCSbalance
1087      - re-arranged obcs_calc
1088      - moved exf_getobcs to obcs_prescibe_read
1089        obcs_prescibe_read is called after ORLANSKI stuff
1090        and independent of it (executable can contain all).
1091      - updated obcs_check
1092      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1093        These may be necessary only if tangential velocities are
1094        prescribed at OB, not sure, needs testing.
1095    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1096      which simplifies the calls and passes the ifc check-bounds test
1097    
1098    checkpoint55b_post
1099    o add a 2D scalar, Z location, exchange_2 routine.
1100    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1101      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1102      affects advect_cs results (for the wrong reason): update output.txt
1103    o use a more standard discretization for biharmonic viscosity ;
1104     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1105      affects results of dome set-up: update output.txt
1106    o fix gad_advection.F (CubedSphere part), back to version 1.23
1107    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1108    
1109    checkpoint55a_post
1110    o merged code to
1111      * prescribe/read time-dependent open boundaries
1112        (works in conjunction with exf, cal)
1113      * sponge layer code for open boundaries
1114      * each boundary N/S/E/W now has its own CPP option
1115        (healthy for the adjoint)
1116    
1117    checkpoint55
1118    o up-to-date adjoint of previous breaks
1119      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1120      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1121      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1122      - carbon: * remove tr1-related adjoint verification
1123                * add ptracer as control variable
1124    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1125      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1126    
1127    checkpoint54f_post
1128    o in verification/carbin/ remove experiment related to
1129      ALLOW_PASSIVE_TRACER (array tr1 etc)
1130      code_ad/ input_ad/ results_ad
1131    
1132    o add two new packages
1133      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1134        + subject to optimization (memory)
1135      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1136        + subject to reordering (many GOTOs in the original code)
1137        + so far opps is called for every (i,j) point, and then operates in
1138          the vertical; one may want to reorder the scheme in order operate in
1139          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1140          fields)
1141    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1142      - all verification tests compile and run with linux_ia32_g77
1143      - defaults are compatible with current input files--nothing
1144        should change if you were not previously using MNC
1145      - MNC output has been added in numerous places (eg. timeave)
1146        but there are still a few writes not yet do-able with MNC
1147        (this is in progress)
1148      - flags now allow for either/or/both use of MDSIO and MNC and
1149        documentation will soon follow
1150      - numerous small formatting cleanups for ProTeX
1151    o add version info (via BUILD_INFO.h) to MNC and stdout
1152    
1153    checkpoint54e_post
1154    o add two new packages
1155      - pp81 (Packanowski and Philander, 1981), Richardson number and
1156        stratification dependent mixing
1157      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1158      - these scheme operate in a similar manner as KPP (without ghat, of
1159        course), however there is only one diffusivity that is used for both
1160        temperature and salinity (and passive tracers)ç
1161    o add offline package
1162    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1163      provided by Stephanie Dutkiewicz
1164    o genmake2: add ability to search for C compilers and cleanup test output
1165      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1166    
1167    checkpoint54d_post
1168    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1169    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1170      leading to additional shift by 5 days each year of integration
1171       (i.e. leading to considerable offset over the years)
1172    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1173    o start with no AB and no initial filtering (staggerTimeStep):
1174      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1175    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1176      (external loading & cpl import/export stay in forward_step.F)
1177    o update coupling interface to work with new staggerTimeStep
1178    o change MDSIO ptracers_pickup.
1179    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1180    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1181    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1182    
1183    checkpoint54c_post
1184    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1185      this affects (truncation error) output.txt of test-exp:
1186       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1187    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1188    o change Qnet to always be the net heat flux, (+upward).
1189      affects (truncation error) output of natl_box exp.: updated
1190    o define the max number of passive tracers in PTRACERS_SIZE.h
1191    o start to test mnc routinely in exp0
1192    o add sea-ice loading (sIceLoad) as a new forcing field.
1193    
1194    checkpoint54b_post
1195    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1196       impressive on Altix and Opteron systems)
1197    o diagnostics can now write NetCDF files through the mnc package
1198    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1199    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1200    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1201      affects (truncation error) output of lab_sea & natl_box exp.: updated
1202    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1203    
1204    checkpoint54a_post
1205    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1206    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1207    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1208    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1209      + internal_wave (shift in writing cg2d_ini_res)
1210    checkpoint54a_pre
1211    
1212    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1213      - modified verification/lab_sea and natl_box_adjoint accordingly
1214    
1215    checkpoint54
1216    checkpoint53g_post
1217    o prepare splitting of thermodynamics: store convect.counter in common block
1218    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1219      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1220    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1221    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1222    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1223    o restore adjointability
1224    
1225    checkpoint53f_post
1226    o modifications that affect AIM experiment results (update output.txt):
1227      - no advection of S at top interface Nr (pkg/generic_advdiff)
1228      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1229    o AIM pkg:
1230      - include stability function into surf.Flux derivative relative to Tsurf
1231      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1232    
1233    checkpoint53e_post
1234    o merged cylindrical coord configuration
1235    o added rotating_tank experiment
1236    checkpoint53e_pre
1237    
1238    checkpoint53d_post
1239    o faulks upgraded: re-generate output.txt that have changed:
1240       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1241    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1242    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1243    o added Sadourny discretization of Coriolis
1244      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1245      - re-enabled use of omega3 (useAbsVorticity)
1246    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1247      vector-invariant equations
1248      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1249    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1250      hopefully without new bugs
1251      - still to do: biharmonic friction for non-hydrostatic w
1252    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1253    o regenerated output for global_ocean_ebm (using -ieee)
1254    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1255      of mom_common/
1256      - simple re-arrangement of instructions within computing loop
1257    checkpoint53d_pre
1258    
1259    checkpoint53c_post
1260    o new version of coupler for AIM+thSIce and Ocean models
1261     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1262     - land: change Evaporation of snow
1263     - aim with thSIce: fix bug in snow-precip.
1264    o changes to calc_gw.F
1265     - bug fix for w^2 term near the bottom boundary
1266     - (hopefully) improve the lateral slip boundary condtions for use with
1267        partial/looped cells
1268      - because the bug fix changes two verification experiments anyway (exp5
1269        and plume on slope), change the lateral boundary condition from half slip
1270        to the value of no_slip_sides
1271    o ebm package wasnt quite up to the parallel task. Fixed that.
1272    o Adjoint of EBM package + verification
1273      * TLM OK
1274      * ADM not sufficient accuracy yet (needs further testing)
1275    
1276    checkpoint53b_post
1277    o Commiting new energy balance model to repository
1278      * package is pkg/ebm
1279      * verif. is verification/global_ocean_ebm
1280      * references are in ebm_driver.F
1281    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1282    C        Global thermohaline circulation. Part I:
1283    C        Sensitivity to atmospheric moisture transport.
1284    C        J. Climate 12(1), 71-82
1285    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1286    C        Global thermohaline circulation. Part II:
1287    C        Sensitivity with interactive transport.
1288    C        J. Climate 12(1), 83-91
1289    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1290    C        Destabilization of the thermohaline circulation
1291    C        by atmospheric eddy transports.
1292    C        J. Climate 7(12), 1870-1882
1293    o Will need long integration testing.
1294    checkpoint53b_pre
1295    
1296    o created pkg/mom_common in preparation for variable viscosity code
1297    o renamed and split ini_mnc_io
1298    o pkg/land: only liquid water can diffuse or run-off
1299    o AIM using land: soil wetness availability account for snow
1300    o added printMapIncludesZeros to EEPARMS namelist
1301    
1302    checkpoint53a_post
1303    o restore TAMC compatiility for exf_constants.h
1304      (no usage of _d in .h)
1305    o Additional storing in KPP in an attempt to fix
1306      TAMC problem with adjoint of KPP code.
1307      (no success...)
1308      Identical code works fine with TAF.
1309    o Fixed verification/natl_box_adjoint experiments.
1310      Initial conditions for Experiments 4 and 5 are now
1311      set to "SEAICE_initialHEFF=0", which is more reasonable,
1312      and hence gives results closer to that of Experiment 2.
1313      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1314    
1315    checkpoint53
1316    o stable checkpoint with up to date adjoint
1317      TLM tests only run for 1st grdchk at the moment. Its unclear if
1318      this is a code problem or a problem with resetting code for g_
1319      variables that is being autogenerated wrong.
1320      Otherwise:
1321       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1322       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1323         are both still in chaos following their security messes.
1324    
1325    checkpoint52n_post
1326    o various build (mostly genmake2) changes including:
1327      - ability to build/run more easily within Cygwin and MacOS X
1328      - more complicated Makefiles with a stronger dependence on Gnu Make
1329    o pkg/seaice modifications
1330      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1331        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1332        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1333      - changed proxy for geostrophic velocity and updated
1334        verification/lab_sea/results/* accordingly
1335      - removed ADI dynamic solver from pkg/seaice
1336      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1337        they caused a segmentation fault under certain circumstances
1338      - removed unused field WATR
1339    o bug fix in exf-package:
1340      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1341         now reflect that.
1342    o small fixes in the cal-package:
1343      - set reference date to first of January for the 'model'-calendar
1344      - failing of cal_CheckDate in cal_FullDate now actually results in a
1345        warning
1346    o small modifications in exf-package to increase flexibility:
1347      - change climtempfreeze from a constant to a runtime parameter that
1348        is specified in data.exf_clim (default = -1.9)
1349      - introduce runtime parameter windstressmax (default = 2.0) that is
1350        specified in data.exf
1351    o fix in pkg/thsice:
1352      - update Evap (Tsf changes) to be consistent with Latent heat flux
1353      - maintain snow precipitation unchanged (even if Tsf >=0).
1354     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1355    
1356    checkpoint52m_post
1357    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1358      this does not change any of the results, because myIter=0 in swfrac always
1359      lead to jwtype=2 (the default anyway), but the call makes little sense
1360      as a default
1361    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1362    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1363      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1364    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1365    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1366    o extending useSingleCpuIO option to work with new exch2 I/O format
1367      - old-style, missing-tile I/O is still accessible by defining CPP
1368        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1369    o monitor package can write to NetCDF files and/or STDOUT
1370    o fix re-definition bug in MNC_GRID_INIT_ALL()
1371    o doc/api_reference added
1372      - a framework for building an API Reference Manual using all
1373        the "protex" comments embedded in the code
1374      - see pkg/generic_advdiff, pkg/mnc for examples
1375    o MNC:
1376      - make myThid the last argument for all subroutines
1377      - new default for the grid files: NO halos
1378      - add useMNC and other run-time flags
1379      - separate per-file-group handling of the unlimited dimension
1380      - early initialization of MNC w/ flags read at the eeboot stage
1381        and lookup tables set in initialize_fixed
1382      - write all MNC output to a freshly-created directory
1383    o thermodynamics sea-ice (thsice) is now tested with testreport.
1384    o test exp. advect_cs: use the standard cs32 grid ; update output.
1385    o Added functionality to grdchk:
1386      pick global i,j,k position (or nearest wet) where to perform check.
1387    
1388    checkpoint52l_post
1389    o new land formulation:
1390      a) use ground enthalpy as prognostic variable to ensure exact
1391         energy conservation.
1392      b) account for water temperature and for latent heat of freezing
1393         in all processes (rain, run-off, ground storage)
1394      c) compute surface and ground temperature implicitly.
1395    o aim_v23 modification for new land model:
1396      a) Treat separately land / ocean / sea-ice surface fluxes
1397         to allow implicit computation of land & sea-ice surface temp.
1398      b) add snow precipitation.
1399    checkpoint52l_pre
1400    
1401    o fix problem (when 1 tile is empty) in min/max monitor.
1402    o fix bug in timeAve (u,vZetatave in common block)
1403    o no restoring terms under ice for pkg/seaice
1404  o moved SEAICE_DO_DIAGS to S/R do_the_model_io  o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1405  o bug fix for pkg/seaice pickups  o bug fix for pkg/seaice pickups
1406  o change MNC call locations and add coordinate attributes  o change MNC call locations and add coordinate attributes

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