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revision 1.232 by jmc, Wed Dec 31 20:29:54 2003 UTC revision 1.691 by dimitri, Fri Jun 30 12:05:42 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 pkg/exf modifications to interpolation and rotation routines for more
8       reasonable treatment of North Pole singularity: for tracers North Pole
9       value is set to northernmost zonal-mean value, for zonal velocity it is
10       set to zero, and for meridional velocity it is set to northernmost value.
11    o pkg/exf/exf_check_range.F
12     - add tile index to diagnostics and move stop statement to the very
13       end of the routine.
14    o pkg/diagnostics: (diagnostics_main_init.F)
15      define title of isomorphic variables according to the current config.
16    o pkg/thsice with pkg/seaice dynamics:
17    - fix domain of computation (interior only, required for exf) and do exchanges
18    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
19    o towards a standard way of dealing with multi-threading in MONITOR
20      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
21    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
22       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
23    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
24    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
25    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
26       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
27    o tracer advection:
28     - clean-up and simplify calc_common_factors.F
29     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
30       advection subroutine (but still not used within DST advection S/R)
31    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
32    
33    checkpoint58j_post
34    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
35      from file (collects calls previously in FORWARD_STEP)
36    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
37    o adjoint store dir. adjusted accordingly
38    o genmake2
39      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
40    
41    checkpoint58i_post
42    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
43      on wind stress (SEAICEstressFactor defaults to 1.)
44    o Total number of Timers is finite (<=40): comment out 2 non-essential one
45      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
46    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
47      on CS-grid: no longer loosing mass.
48    o exf & curvilinear-grid: no longer modify longitude xC & xG.
49    o pkg/ggl90: fix sloppy output and fix a bug
50    o pkg/seaice: added SEAICEuseEVPpickup parameter
51      - Set to false in order to start EVP solver with
52        non-EVP pickup files when using SEAICEuseEVP
53      - fix sign error in diffusion in seaice_calc_rhs
54    
55    checkpoint58h_post
56    * Modifications for bottom topography control
57      o replace hFacC by _hFacC at various places
58      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
59      o add non-self-adjoint cg2d_nsa
60      o update autodiff support routines
61      o re-initialise hfac after ctrl_depth_ini
62      o works for 5x5 box, doesnt work for global_ocean.90x40x15
63    * Adding verification for 5x5 box (4-layer) bottom topography control
64    
65    checkpoint58g_post
66    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
67       used for mean seasonal cycle, mean diurnal cycle); add an example
68       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
69    o pkg/ggl90:
70      - add parameter (minimum surface kinetic energy)
71      - fix bug (avoiding division by zero)
72    o couple pkg/thsice to pkg/seaice:
73      - modify advection in seaice to accomodate new scalar fields to be advected
74      - only muliDimAdection scheme work with seaice/thsice
75      - mapping of thsice-variables to seaice-variables, back and forth
76      - does not break the verification experiments, but does not give the
77        desired results either
78    o pkg/seaice
79      - make (default) second order advection a bit less confusing?
80    
81    checkpoint58f_post
82    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
83      to pkg/seaice):
84      - new routines thsice_map_exf and thsice_get_exf provide the interface
85      - add an additional formal parameter to thsice_solve4temp
86    o pkg/exf:
87      - add new fields wspeed, snowprecip (to be able to couple to thsice)
88      - correct Stefan-Boltzmann constant
89      - new parameter for longwave surface emittance
90      - separate some stuff from exf_bulkformulae into new routines  
91        exf_radiation, exf_wind
92      - add new parameters and constants: longwave emissivity for ocean, ice
93        and snow, evaporation parameters over ice
94      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
95        either wind from stress or stress from wind
96    o pkg/thSIce:
97    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
98    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
99       and THSICE_CALC_THICKN
100    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
101    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
102      to make debugging easier.
103    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
104    o pkg/bulk_force:
105      - clean-up comments and parameters ;
106      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
107    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
108      generate new output for test-experiment: aim.5l_cs.thSI
109    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
110      testreport accordingly
111    
112    checkpoint58e_post
113    o SEAICE_CGRID adjoint done
114    o R_STAR adjoint implemented.
115      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
116      * need to sort out init. of h0facc, etc.
117    o Make pkg/profile fully independent of ecco,cost, etc. stuff
118      to be able to use it in pure forward.
119    
120    checkpoint58d_post
121    o upgrade simple test-experiment to tutorial example:
122     step.1: duplicate the experiment and (step.2) will remove the old copy.
123      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
124      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
125      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
126      tutorial_global_oce_biogeo    <- copy of dic_example
127      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
128      tutorial_plume_on_slope       <- copy of plume_on_slope
129      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
130      tutorial_global_oce_optim     <- empty for now (David ?)
131      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
132     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
133    o correct a sign problem in cost_scat.F
134    o obcs and ptracers: fix boundary conditions for advections schemes
135      with larger stencil
136    o thsice adjoint: start
137    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
138      completeness
139    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
140      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
141    o ptracers adjoint:
142      * avoid extensive recomputatations
143      * fix missing re-init. of gptr (missed by TAF)
144    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
145      me to turn off the excessive output to STDOUT that this package produces
146    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
147      and add those terms in Vector-Invariant formulation.
148    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
149      if the control period (xx_hfluxperiod etc) is 0
150    o in profiles pkg, clean routines and fix details
151    o in ecco pkg, reading ssh data:
152      fix problem in case the model does not start at iter0=0
153    o fix mnc-pickup/restart for ptracers
154    o new package prifiles:
155      code to compute profile-based cost by Gael Forget
156      (modifs in ecco, ctrl, autodiff)
157    o Benign bug fix in initialization (spotted by M. Mazloff) of
158      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
159    
160    checkpoint58c_post
161    o adjoint: finish NLFS adjoint and provide reference output in
162      verification/global_ocean.90x40x15/results_ad_nlfs
163    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
164      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
165      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
166      with SEAICE_CGRID defined.
167    o move calendarDumps from "data" to "data.cal" and clean-up the code
168      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
169    o add useEXF & useCAL flags (for now, set in hard-coded way)
170    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
171      (were missing in NH mode, and wrong in quasihydrostatic mode).
172      waiting for Chris updated version of calc_gw to add those CALLs.
173    o fix bug in quasihydrostatic S/R ;
174      add a test for this option: global_ocean.90x40x15.qshyd
175    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
176      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
177    o add on/off flag useOffLine for package OFFLINE
178    o seaice:
179      - modify advection so that it works also on the C-grid
180      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
181        problem in multi-tile runs with C-grid
182      - add flags for clipping ice velocities and/or masking solver forcing
183      - fix drag (ocean on ice) formulation and a bug that caused noise in the
184        C-grid solver
185      - added a few comments to seaice_diffusion.F
186      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
187        are now exclusive)
188      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
189        required re-ordering the code a little:
190       + make DAIRN global variable (defined in SEAICE)
191       + move computation of the viscosities eta and zeta into a new separate
192         routine (because I need to recompute them in seaice_ocean_stress.F)
193    
194    checkpoint58b_post
195    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
196      update output.txt of exp. aim.5l_cs.thSI
197    o various mnc cleanups and improvements:
198      + shrink lookup tables by factor of ~4
199      + better error reporting when running out of lookup space
200      + able to handle longer path/file names (up to 500 chars)
201    o adjoint:
202      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
203      - TBD: "hidden" mom_vecinv recomp. in dynamics
204    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
205     (allow to differentiate between forcing components using new integer flags:
206      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
207     and add new flag to put Dissipation tendency out of Adams-Bashforth.
208    o ecco
209      - enable trend removal from SSH anomaly obs.
210    o adjoint
211      - a fix for PmEpR when #undef EXACT_CONSERV
212      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
213      - try to fix "hidden" recomp. in forward_step for NLFS
214        (NLFS seems broken sometimes after I checked it in)
215    o seaice:
216     - add c-grid version of the dynamic solver:
217       + three new routines that are the c-grid substitute lsr, dynsolver
218         and ostres
219       + put a few fields that were local to dynsolver into global common
220         blocks, so that I can move the computation of stresses etc into
221         seaice_lsr (saves coding but may break the adjoint).
222     - replace more hardwired parameters by runtime parameters
223     - add ice masks that mask the rhs of the implicit solvers where there
224       is no ice (commented out in seaice_dynsolver, because i am not sure
225       if this works properly), eventually this should replace the clipping
226       of ice velocities in seaice_dynsolver to +/-40cm/s.
227    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
228      include it only where its needed
229    o move balancing of fluxes before the call of external_forcing_surf
230    o seaice:
231      - correct units of turning angles (now they are really in degrees)
232      - move computation of GWATX/Y out of main routine into dynsolver
233      - initialize GWATX/Y in seaice_init
234    o Apply mask on Fresh-Water flux (needed for SSH forcing).
235      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
236    o seaice: add runtime flags for turning angles (default to zero)
237    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
238      and trend from exf forcing and ctrl control adjustments
239    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
240      (since checkpoint57x_post)
241    o change the default rotation period to 86164.s = the Earth rotation
242    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
243      and based on a reference stratification. Tested within hs94.cs-32x32x5.
244    o seaice advection: add code for choosing between the default (2nd order
245      central differences) and multiDim advection schemes provided by
246      pkg/generic_advdiff
247    o seaice:
248      - removed all references to SEAICE_GRID.h fields from
249        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
250        (cubed-sphere configuration will change a little)
251      - grid computations in seaice_init are obsolete now.
252      - cleaned up code a little so that is easier to read (hopefully).
253      - added new (better?) discretizations of default advection and diffusion
254        (turn on with SEAICEuseFluxForm)
255      - replace 1 in 3d global fields by kSurface in growth.F
256      
257    checkpoint58a_post
258    o seaice:
259      - bug fix in advect.F
260    o shelfice:
261      - separate shelfice load anomaly from pload (breaks with time
262        dependent forcing), => introduce constant field shelficeLoadAnomaly.
263        Its default is 0., but it may be computed more cleverly from (unknown)
264        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
265        done offline. A good approximation of the pressure load anomaly is
266        necessary to avoid large initial adjustment processes underneath
267        deep-reaching shelfice.
268      - small fix in ISOMIP shelfice_thermodynamics
269      - add more sophisticated thermodynamics of Hellmer (1989), this is
270        now the default
271      - give a few constants more intuitive names
272    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
273      if bulk formulae are used in long integration (especially EmPmR). Turn
274      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
275      if balancePrintMean, the imbalance that is substracted is printed to
276      STDOUT.
277    o fix bug (typo) in obcs_apply_eta.F
278    o add a new package shelfice which enables us to model the circulation
279      underneath shelf-ice with draughts of hundreds of meters.
280     - works
281     - to do: + include improved thermodynamics
282              + check whether kSurfC (from model/inc/SURFACE.h) can be used
283                instead of new field kTopC
284              + can we use topoFile, Ro_surf and existing code in ini_depth.F
285                instead of new field R_shelfIce and new code in ini_depth.F
286                and ini_mask_etc.F?
287              + adjust vertical mixing schemes?
288    o seaice pkg:
289     - add a cpp-flag to include a simple formula for a salinity dependent
290       freezing point of sea water at the surface
291     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
292       meridional stresses are now different (and hopefully correct)
293    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
294       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
295       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
296    o pkg/diagnostics: add options and parameters for regional-statistics
297       diagnostics ; define regions by reading a region-mask from a file
298       (might add other options later)
299    o pkg/bulk_force:
300     - add option and parameters to use AIM surface-flux formulae.
301     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
302       others forcing fields (defined in PARM05, parameter file "data") are loaded
303       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
304     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
305     - use the right EXCH call for uwind,vwind (to work on CS-grid).
306     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
307       and parameters (note: calcWindStress replaces .NOT.readwindstress).
308     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
309    
310    checkpoint58
311    o add "--embed-source" option to genmake2 which, when the supporting
312      tools can be compiled (as determined by genmake2) will turn on the
313      embed_files package which then embeds the entire MITgcm source code
314      (*.[fFhc] + Makefile) used for the build within the executable
315      - requested by CNH but off by default
316      - adds a paltry <9MB to the mitgcmuv executable in most cases
317      - only writes the output when useEMBEDSRC in eedata is true
318    o clean up 3-dim. relaxation codes:
319      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
320      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
321      * Thanks to Tom Haine for testing!
322    
323    checkpoint57z_post
324    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
325      affects output (@ truncation level) of exp. plume_on_slope ; updated.
326    o fix the pickup behavior for obcs in combination with ptracers
327    o fix a bug in ptracers_external_fields_load
328    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
329      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
330    o transfered surface NH pressure to eta field (if exactConserv).
331    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
332         and update lab_sea output.txt file.
333    o completing 3-dim. relaxation code: additional term
334         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
335      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
336      * At compile time, in "EXF_OPTIONS.h" set
337          #define  ALLOW_CLIMTEMP_RELAXATION
338          #define  ALLOW_CLIMSALT_RELAXATION
339      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
340          tauThetaClimRelax3Dim = 15552000.0,
341          tauSaltClimRelax3Dim  = 15552000.0,
342      * 3 cases:
343          1) Use a constant-in-time 3-dim. field
344          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
345          3) Real-time relax. to time-evolving prescribed field
346    o Adding Laplacian-type smoothness constraint on
347      initial and boundary (forcing) controls (ic, bc)
348      * enable at compile-time via
349        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
350      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
351      * Absolute scale somewhat unclear so far
352      * no area weighting was included since no other cost term does so far
353    
354    checkpoint57y_post
355    First step for a NLFS adjoint
356    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
357    o new init. routines for calc_r_star, calc_surf_dr
358    o still need to deal with ini_masks_etc
359    o testreport seemed happy
360    checkpoint57y_pre
361    
362    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
363    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
364    o add new offset feature to offline pkg (plus minor cleanup)
365    o cfc fixes for final year of integration
366    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
367      be in GCHEM_OPTIONS).
368    
369    checkpoint57x_post
370    o fix testreport Pb in multiple test experiment.
371    o cleanup our namelist syntax in verification:
372      - make it more F95 standards compliant (some work still needed)
373      - allows the vast majority of our tests to work with gfortran
374    o Non-Hydrostatic:
375     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
376     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
377    o Allow to apply AB on T,S rather than on AB(gT,gS):
378     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
379     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
380       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
381     - need a "clever" read_pickup to restart from the other AB formulation
382    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
383    o remove some unused variables (reduces number of compiler warnings)
384    o adjoint
385      * Disable useVariableViscosity for adjoint for time being
386        (there are a number of extensive recomputations)
387      * Initialize certain variables needed for adjoint
388    
389    checkpoint57w_post
390    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
391                 fix the singleCpuIO RS version of MDSWRITEFIELD
392       and add a WARNING if using globalFiles=T with multi-processors.
393    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
394      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
395    o tracer advection scheme:
396      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
397       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
398       was not very convenient).
399      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
400       (further tests needed for the implicit DST & Flux-Limiter schemes).
401    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
402      and sRef for convenience, handy, when you want to initialize
403      ptracers in a large domain with a constant non-zero value. Also,
404      untangle ptracers_init.F a little.
405    
406    checkpoint57v_post
407    o change dome exp. to use variable viscosity in side-drag terms.
408    o remove all the files from the cfc_offline test since they are now
409      incorporated into tutorial_cfc_offline which has been producing
410      identical results for a few days of testing
411    o add new parameter: sideDragFactor to enable half-slip-side BC
412      and change side-drag S/R to use viscosity from mom_calc_visc
413      (can switch back by setting sideDragFactor=0.); affects results at
414      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
415       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
416    o vorticity & strain are now computed without masking, to account for
417      no-slip-side BC in variable viscosity calculation ; mask is applied
418      anyway later on, before computing advection/coriolis terms.
419    o modify exp4 to test new obcs support for reading from external files
420      and for passive tracers
421    o fix behavior of ptracers_monitor when monitor output is written to a
422      netcdf-file; still not independent of monitor.F (writes in the same
423      file).
424    o change default value of tRef (put a uniform, meaningful value for ocean
425      & atmos) and initialize sRef (was missing, as Martin mentioned).
426    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
427      to be proportional to enstrophy dissipation length.  Thus,
428       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
429      This is now consistent with Smagorinsky and with the manual.
430    
431    checkpoint57u_post
432    o OBCS and PTRACERS: add open boundary support for passive tracers
433      - either use homogenous (pseudo) v.Neumann conditions or prescribe
434        OB-values from file; this is not different from the way theta and salinity
435        are treated
436      - however, Orlanski-radiation conditions are not supported, and the model
437        will stop if you use pTracers and Orlanski at the same time.
438      - beefed up the rountine obcs_external_fields_load: now only those open
439        boundary values are overwritten with values from files for which there
440        are really files, otherwise the OB-fields remain untouched. This makes
441        it possible to use different OBs at different ends of the domain (as
442        with EXF)
443    o reduce number of exch calls in shap_filt (s2).
444    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
445      truncation level) 4/5 MLAdjust test results (11&12 digits match).
446    
447    checkpoint57t_post
448    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
449    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
450      same truncation, independent of the face number: affects affects several
451      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
452    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
453      note that biharmonic viscosity + no-slip was not tested in any experiment.
454    o fix bug in non-linear free-surf side-drag ; generate new output for
455      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
456    o make mnc honor the writeBinaryPrec flag for most kinds of output
457    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
458    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
459      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
460    o add brackets in multi-terms sum to get same truncation, independent of
461      the face number (manage to get exactly same value of gU,gV at the cs-edge)
462      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
463    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
464      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
465      a maximum grid-scale Reynolds number.  Also, changes all length calculations
466      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
467      Suggested values of viscosity parameters found in mom_calc_visc.
468      Many new viscosity diagnostics available.
469    
470    checkpoint57s_post
471    o Add clearing-house for viscosity calculations, mom_calc_visc and
472      correct numerous bugs in LeithD and Smagorinsky discretizations.  
473      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
474      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
475      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
476      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
477      The Strain-Tension form is now called with useStrainTensonVisc=.true.
478      ViscAhStrain and viscAhTension are now retired.
479    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
480    o In response to JMC's bug report, genmake2 now ignores any soft-links
481      that it finds in the *current* directory when searching for files.
482      Soft-links found in any other source directories will still work as
483      they did before.
484    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
485      a C routine to unlimit the stack size
486    o mnc-ify pkg/aim snapshot vars
487    o mnc-ify pkg/land as requested by Daniel
488    o various changes to mnc including:
489      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
490      - output can now be grouped so that all files within a group
491          change the ITER portion of their names in lock-step together
492      - can now read ("global") PER-FACE (in addition to PER-TILE) files
493          and works with both EXCH1 and EXCH2 (but needs more testing)
494      - writing works for all verification test cases w/ g77 on Linux
495    
496    checkpoint57r_post
497    o make MNC variable initialization happen earlier
498    o add diagnostics for (almost) each term of the momentum Eq.
499    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
500    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
501    o remove MINIMAL_TAVE_OUTPUT option ;
502      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
503    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
504      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
505    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
506    o add time-dependent SST, SSS control
507    o cost terms in ecco/ modularized (new cost_generic.F)
508    o cost_averages routines are modularized (new cost_averagesgeneric.F)
509    o new infrastructure for seaice model vs. obs misfits in seaice/
510      * driver from the_main_loop.F is seaice_cost_driver.F
511      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
512      * gradient check in Exp. 6a of natl_box_adjoint/
513    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
514      (see README file)
515    
516    checkpoint57q_post
517    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
518    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
519      - bug was reported by Jean-Michel and Ian Fenty
520    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
521      update exp. cpl_aim+ocn output.
522    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
523      Needed for high-res. runs with large global files
524      to be able to limit tapelev size
525    o Changed some tests for adjoint:
526      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
527      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
528      * global_ocean.90x40x15/ back to default 3-level checkpointing
529    o Modifications to enable scripted COMMON to MODULE conversion
530      * verification/OpenAD/code/ has necessary scripts and description;
531      * converts, compiles and runs successfully;
532    
533    checkpoint57p_post
534    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
535    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
536      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
537    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
538    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
539      (was already the case for dissipation with mom_vecinv,
540       and also the case for grad.PhiHyd when staggered-timeStep)
541      This will allow to put dissipation out-off the AB time-stepping.
542     Unfortunately, affects truncation error. Update output of exp. that "fails"
543      (cg2d matching number) and leave the others for later: front_relax(10),
544      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
545      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
546    
547    checkpoint57o_post
548    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
549      (2) its ready to be documented during the 20050801 DocFest
550    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
551      for ideal_2D_oce and lab_sea on linux_ia32_g77
552    o set to #undef CTRL_SET_OLD_MAXCVARS_30
553      in global1x1_tot/code_seaice_adj to access indices 32, 33
554      (worth another tag)
555    
556    checkpoint57n_post
557    o adding precip control xx_precip 32
558    o adding swflux control xx_swflux 33
559    o Replacing 10 forcing penalty cost routines by 1 generic.
560    o Implementing partitioning in time-mean and variable adjustment
561      for atmos. state.
562    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
563    o in natl_box_adjoint:
564      * updated exp 1 to 10
565        (but does not have time-mean vs. variable split results yet)
566    o updated global1x1/*_seaice_adj/
567      to incorporate latest changes
568    o enable useSingleCpuIO for mdsio vector routines
569      (applies in particular to tapelev I/O)
570    o removed inefficient K-loop in all active_file*control*.F
571    
572    checkpoint57m_post
573    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
574      and advect_cs (use EXCH-2 and standard cs-32 grid files).
575    o pkg/exch2: filling of face-corner halo regions is optional
576      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
577    
578    checkpoint57l_post
579     tag before updating tutorials (pre-release-2)
580    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
581       for output and interpolation of input fields onto model grid)
582    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
583       Affects results of exp. rotating_tank ; update output.txt.
584    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
585          and taking the square quantity and/or using a fraction-weight field.
586    o fix aim_diagnostics_init.F mate numbers.
587    o add mnc output capability to diagnostics/diagstat and update
588      our cvsignore files for the ACSII output generated
589    
590    checkpoint57k_post
591    o lab_sea now uses diagnostics package and provides a suite of
592      new EXF diagnostics output.
593    
594    checkpoint57j_post
595    o exf
596      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
597        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
598        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
599      * extended diagnostics output
600        - now includes all EXF variables
601        - hs, hl moved to common block
602        - separate S/R for diagnostics, called after ctrl vector is added
603        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
604        - EXFqnet contains true Qnet (i.e. includes qsw)
605      * updated verif. lab_sea, global_with_exf
606      * Rearranging hflux (exf_mapfields -> exf_getforcing)
607        to ensure that diagnostics sees a true EXFqnet
608    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
609    o diagnostics pkg: change pointers so that 1 diagnostic can be used
610      several times with different frequencies.
611    o mnc-ify the thsice package as requested by Daniel Enderton
612      - the monitor--MNC output needs work
613      - many attributes need to be added (most are currently blank)
614    o mnc-ify theaim_v23 package as requested by Daniel Enderton
615      - many attributes need to be added (most are currently blank)
616    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
617    o add Sadourny like discretization to the 4th.O vorticity advection scheme
618    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
619      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
620         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
621    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
622     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
623    
624    checkpoint57i_post
625    o Diagnostics package was changed: diagnostic allocation is now deactivated
626      by setting an empty file name in the namelist (used to be by setting 0 frequency)
627    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
628      add 1rst Order upwind vertical Shear.
629    o add a quick fix for A/B checkpointing in OFFLINE mode
630    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
631      end-run around the C/Fortran linking horror in eesup/src/timers.F
632    o added pkg/runclock: allows user to terminate run based on wall clock
633    o added non-hydrostatic scaling parameter: nh_am2
634    o pkg/my82: futile attempt to make results compiler-independent by adding
635      some "_d 0", etc. no effect.
636    o for mnc output, fill the 'T' coordinate var with myTime and create a
637      separate 'iter' variable for iteration count
638    o pkg/diagnostics:
639      add new capability: output of Global/Regional & per-level statistics ;
640      tested against monitor output (including land & thSIce) on various exp.
641    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
642    
643    checkpoint57h_done
644      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
645      data.diagnostics, data.gchem, data.ptracers) is done.
646    
647    o pkg/diagnostics: prepare for Global/Regional statistics.
648      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
649    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
650      and rename it: DIFFERENT_MULTIPLE
651    
652    checkpoint57h_post
653    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
654    o pkg/diagnostics: change output frequency, now in seconds (instead
655      of Nb of iterations). This requires to change data.diagnostics.
656    checkpoint57h_pre
657    
658    o in mnc, let the user create the output dir if both mnc_outdir_date
659      and mnc_outdir_num are false
660    o add fflags() to pkg/diagnostics which allows one to specify, on a
661      per-file basis, the file precision [default behavior is unchanged]
662    o added diagnostics to pkg/kpp, including computation of mixed layer
663      depth based on a temperature/density criterion
664    o updated verification/natl_box to test the new pkg/kpp diagnostics
665    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
666    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
667    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
668      not mnc -- this mistake was found by JMC and is now corrected
669    
670    checkpoint57g_post
671    o add Adams-Bashforth 3rd Order time stepping:
672      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
673      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
674    checkpoint57g_pre
675    
676    o make lambda[Theta,Salt]ClimRelax spatially varying
677      (default remains spatially uniform constant based on tau)
678    o added new control variables
679      * init. uVel, vVel, etanN
680      * lambda[Theta,Salt]ClimRelax
681    o separate masks used for ctrl_pack/unpack 'from write_grid' output
682      (suggested by G. Forget)
683    
684    checkpoint57f_post
685    o add parameter "baseTime" = model base time = time at iteration zero
686      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
687      account for baseTime shift
688    o move Coriolis arrays from PARAMS.h to GRID.h
689    checkpoint57f_pre
690    
691    o mnc-ifying the seaice package
692    o introduced an alternative length scale calculation for use in the limiting
693      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
694    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
695    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
696      as well as grad(vort3).  Made it compatible with both approximate form
697      for the cubed sphere and full form of these gradients.  Added flag
698      useFullLeith to select between approximate and full form.  
699    o add "d0" in getcon.F to reduce differences between compilers/platforms
700      update output.txt of exp. fizhi-gridalt-hs
701    o change port_rand funtion to allow to set the seed.
702    o fix obscure MNC bug involving conversion between reals and integers
703      - it caused no problems with certain (eg. gcc, ifc) compilers but the
704        new version is now more standards-compliant
705    o adjoint-related modifications
706      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
707      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
708      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
709    
710    checkpoint57e_post
711    o Adding eddy stress controls a la Ferreira et al.
712    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
713    
714    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
715      update output.txt of exp. fizhi-gridalt-hs
716    o add more "Z" dimensions and associated coordinate vars to MNC
717    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
718    o parameter calendarDumps: when set, approximate months (30-31 days) and years
719      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
720      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
721      months and years.  Requires pkg/cal.
722    o diagnostics: add pickup functionality
723      - off by default for backwards compatibility
724      - current version only uses MDSIO -- MNC will be added
725    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
726    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
727    
728    checkpoint57d_post
729    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
730    o modify verification/ideal_2D_oce so that it tests the creation of mnc
731      output from the diagnostics package
732    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
733    o make genmake2 more portable by using ".$FS" instead of ".f" for more
734      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
735    o add coordinate variables to the MNC output from the diagnostics package
736    o change MNC-flags default value: true when useMNC=TRUE
737    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
738      the ability (off by default) to read the grid information using MNC
739    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
740    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
741    o do snap-shot diagnostics at the middle of the time-interval (instead of
742      at the end).
743    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
744      new test for AIM with thSIce + slab-ocean
745    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
746    o move state variable diagnostics to the beginning of the time step ;
747      (note: still needs some work specially for snap-shot diagnostics)
748      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
749    
750    checkpoint57c_post
751    o Change testing option (-ieee) to get closer agreement between g77 & ifort
752    o generate new output.txt files on faulks with g77 & the new -ieee option
753    checkpoint57c_pre
754    
755    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
756      update output.txt of exp. global_ocean.90x40x15
757    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
758      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
759    o add saltFlux(+File) forcing capability with periodicExternalForcing
760    o allow to use pkg diagnostics for GM-Redi & ThSIce output
761    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
762    o improvements for the MNC output from DIAGNOSTICS:
763      - correct handling of the unlimitied dimension
764      - all dims now have associated coordinate variables
765      - variables located at U, V, and Corner ("Z") points are now written
766        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
767        *all* data points are output
768    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
769    o added pkg/seaice/seaice_monitor.F
770    o mdsio_readfield.F can now read files visible only to master MPI process.
771    o pkg/seaice: some test code for ice-modified ocean stress
772    o exf_getffields interpolation defaults to bilinear for all scalar forcing
773      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
774      spurious negative numbers for precipitation and humidity.  Will cause
775      some small numerical differences for integrations using pkg/exf/exf_interp.F.
776    o pkg/ctrl/
777      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
778        May be enabled via doPackDiag
779      *  introduce z-scaling of
780         + gradient (doZscalePack) and
781         + control (doZscaleUnpack)
782    o pkg/mdsio/
783      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
784      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
785    
786    checkpoint57b_post
787    o simplify options in diagnostics_fill arguments (remove weird combinations)
788    o fix MNC coordinate variables so that they now contain per-face index
789      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
790      general, EXCH2 grids are only aligned to a "local" coordinate system
791    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
792    o Implement instantaneous output within pkg diagnostics:
793      setting a negative frequency in data.diagnostics produces
794     "snap-shot" output (as opposed to time-average if freq > 0)
795    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
796      NOTE: change ptracer diagnostics name: use 2 characters to work with
797            more than 9 tracers. Add also diagnostics of advect & diffus flux.
798    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
799      becomes the coordinate variable for the 'T' dimension
800    o add CF-style coordinate variables to MNC
801      - just a first cut:  numbers are meaningless on the cubesphere and
802        missing along the T axis but otherwise it works!
803    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
804    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
805    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
806      this is based directly on what the model compute, so that the content of
807      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
808    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
809    o clean up build options files for SunOS, in particular
810      - remove -traditional from xmakedepend
811      - change -xarch=v9 to -xarch=native for f77
812      - restore use of make (not gmake)
813      - add CC=gcc if using g77
814    o changes per discussion of AM, JMC, & EH3 today:
815      - move redundant "grid" variables out of "state" -- in preparation of
816        creating proper CF-style coordinate variables and in recognition
817        that any/all grid variables can be easily copied (eg. w/NCO) from
818        the grid files into any of the other NetCDF files
819      - *always* output grid variables with MDSIO (this will eventually be
820        changed)
821      - output MNC grid file if useMNC is true
822    o every instance of _END_MASTER() has been found and replaced with
823      _END_MASTER( myThid ) in order to satisfy certain picky Sun
824      preprocessors
825    o re-arrange diagnostics pkg initialisation:
826     - allow each package to extend the available diagnostics list
827     - add some checking and fix small problems (multi-threaded, ...)
828     - new S/R diagnostics_fill (replace fill_diagnostics):
829       look through the short list of active diag. (instead of the long list)
830       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
831    
832    checkpoint57a_post
833    o this set of changes restores TAMC compatibility
834      tested for global_ocean.90x40x15 adjoint on trough
835      (what a pain)
836    
837    checkpoint57a_pre
838    o some modifs in tools/build_options for sunos
839    o call ctrl_pack for ctrl at end for optimcycle=0
840    
841    checkpoint57
842    o add horizontal bi-harmonic viscosity for vertical velocity
843      - new parameter viscA4W (defaults to viscA4)
844      - affects only non-hydrostatic code
845      - to be done: no-slip lateral boundary conditions
846    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
847    o implement Implicit Vertical advection for pTracers
848    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
849      (implemented also for implicit vertical diffusion & advection)
850    o OBCS: extend application of tracer open boundary conditions
851      to a strip beyond the boundary of width Olx/Oly
852    o add call monitor to TAF set of required calls (flow directives)
853      and include in natl_box_adjoint
854    o untangle a few ifdefs related to cost, ctrl, autodiff
855      untangel a few ALLOW_ECCO_OPTIMIZATION
856    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
857      (theta2, salt2 in ecco_cost_weights)
858    
859    checkpoint56c_post
860    o OBCS as control variables
861      - update ctrl_ad_diff.list, obcs_ad_diff.list
862      - remove balance of obcs controls from default
863      - fix index bug nobcs in ctrl_init
864      - fix dummy fields filen in ctrl_pack
865      - add dummy weights for obcs
866    o lsopt: comment out fort.94 output
867    o optim:
868      - remove unnecessary header files
869      - adjusted namelists
870      - add xerbla.F to Makefile
871    o exf:
872      - multiple modifications of exf_check_range
873      - unit change in exf_init_runoff from [m/year] to [m/s]
874    o mdsio:
875      - i/o-vector change debugLevel from debLevA to debLevB
876    
877    checkpoint56b_post
878    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
879      is called from DO_THE_MODEL_IO
880      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
881      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
882      - clean up PTRACERS_WRITE_TIMEAVE a little
883    o add another verification experiment that tests both the cfc-pkg and
884      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
885      reactive tendencies treated inline with regular timestepping
886    o testreport previously did a lousy job of comparing small numbers, so
887      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
888      implemented in the little c-progam tmp_cmpnum.c which is embedded in
889      testreport.
890    o ptracers_monitor: bug fix for MPI
891    
892    checkpoint56a_post
893    o GCHEM: finish reorganizating the package
894      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
895        (introduces another 3D-array for each passive tracer, but only if
896        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
897        gchemTendency is not needed because the timestep is done separately)
898      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
899      - GCHEM is now---more or less cleanly---separate from PTRACERS
900      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
901        so clear to me how that should be done in a general way.
902    o CFC: improve formatting of output in CFC_ATMOS
903    o PTRACERS:
904      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
905        that ALL experiments with ptracers enable can be checked. This makes
906        GCHEM_MONITOR obsolete.
907      - include a runtime parameter PTRACERS_monitorFreq that defaults to
908        monitorFreq
909      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
910    o add PTRACERS (PTR0[1-5]) to testreport output
911    o exf_check_range:
912      * default changed to .TRUE.
913      * will check values for niter0 if debLevA, every timestep if debLevB
914      * STOP in exf_check_range if 'out of range'
915      * range chosen generous to allow for potential extema
916      TBD: a version with stricter range
917           permitted range would be runtime parameters
918    o GMredi:
919      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
920      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
921      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
922    o GCHEM:
923      - move call to GCHEM_FORCING_SEP, so that it is now called before
924        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
925      - introduced a useGCHEM runtime flag and applied it everywhere.
926      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
927        this flag is now only visible within GCHEM-pkg routines.
928      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
929        be replaced by a 3D array that is computed before thermodynamics; for
930        this, the tracer ID iTracer had to be included into the parameter list
931        of ptracers_forcing
932      - set up forward_step to call gchem_forcing, that will replace
933        gchem_forcing_int in ptracers_forcing
934      - cleaning up
935    o small cleaning of exch2: remove files that are also in eesupp/src
936    
937    checkpoint56
938    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
939    o mnc: cleanup "full" files--fixes out-of-memory problem
940    o ECCO-GODAE
941      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
942      * fully merged and updated from SIO code
943        windstress sign change affects
944        - exf_inscal_[u/v]stress
945        - sign of xx_tau[u/v] adjustments
946        - signs in cost_scat
947      * ctrl_get_gen: avoid update of tau[u/v] for first few days
948      * natl_box_adjoint updated and compressed
949      * 2-level checkpoint switch added
950        (tested in EXP. 1 of natl_box_adjoint)
951      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
952    o SVD
953      * first complete, non-hacked version for SVD calculations
954      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
955        performed via direct access files admtlm_vector.it????
956        (via ctrl_[un]pack)
957      * optimcycle is used for ARPACK iteration counter
958        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
959      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
960        and add linear transforms where necessary
961      * controls are initial/final SST, SSS (can be extended; need to check
962        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
963    o mdsio: filename info to both stderr, stdout
964    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
965      from sign change
966    
967    checkpoint55j_post
968    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
969      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
970    o add consistent build directories and .cvsignore files to verification
971    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
972    o make all subroutines 30 or less characters in length for certain older
973      compilers to work (a thorough search only turns up two routines in
974      pkg/ptracers)
975    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
976      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
977    
978    checkpoint55i_post
979    o change arrays for total vertical diffusivity (2.D if explicit,
980      3.D if implicit) ; each ptracer uses its own background value.
981    o added mnc/NetCDF output capability to ocn_compon_interf
982      - added bits to verification/cpl_aim+ocn so that it can run on
983        ITRDA and other clusters without the mpirun "-wd" option
984    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
985      configuration
986    o give MNC the ability to create additional files rather than
987      exceeding a specified file size limit "MNC_MAX_FILESIZE"
988      - the default is just less than 2GB which is a practical limit
989        on many systems
990    o Compute the non-local term using either KPP vertical diffusivity (=default)
991       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
992    
993    checkpoint55h_post
994    o add verification test "vermix"
995    o remove all the *_ioinc flags and replace with the single global
996      outputTypesInclusive flag
997    o allow to set a vertical profile of vertical diffusivity for T & S
998    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
999    o useMNC moved from data.mnc to data.pkg
1000    
1001    checkpoint55g_post
1002    o Renaming carbon AD experiments to comply with testreport conventions
1003    o Updating adjoint of Held-Suarez hs94.1x64x5
1004    o Fixing directives for non-ECCO forward_step, after ECCO directives
1005      have been fixed to avoid recomp. of do_oceanic_phys
1006      Works well for global_ocean.90x40x15,
1007      but recomp. issue remains for carbon
1008    o Updating adjoint output for natl_box_adjoint after
1009      pkg/ecco has been modified (see taga c55d_post)
1010    
1011    checkpoint55f_post
1012    o rename to timeave_init_fixed
1013    
1014    checkpoint55e_post
1015    o some delicate re-shuffle of store directives to avoid one
1016      extra call of do_oceanic_physics
1017      affects ecco_the_main_loop.F, do_oceanic_physics.F
1018      checkpoint_lev1_directives.h
1019    o NB: this may break global_ocean adjoint temporarily,
1020      but it is clear how to fix it. Will do later, need this now.
1021    
1022    checkpoint55d_post
1023    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1024    o ecco_cost_weights is modified to 1x1 runs
1025    o modifs to allow observations to be read in as
1026      single file or yearly files
1027    o enable to read exf forcing fields as either
1028      single file or yearly files (flag useExfYearlyFields)
1029    checkpoint55d_pre
1030    
1031    o switch between 2-level and 3-level checkpointing
1032    o add ability of MNC to write local and "partial" (eg. 2D slices where
1033      the full 3D field is never actually stored) arrays to NetCDF files
1034      with the correct (that is, the complete multi-dimensional) set of
1035      array indicies
1036      - used in mom_vecinv() to write the diagFreq output
1037      - tested (demonstrated) in verification/aim.5l_cs
1038    o further mnc-ification
1039      - add verification/lab_sea to the list with mnc setups
1040      - fix undefined mnc v-names in cd_code
1041      - add kpp to mnc output (both snapshot and timeave)
1042    o non-hydrostatic code
1043      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1044        in calc_gw.F
1045      - defaults to viscAh
1046      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1047        friction or Leith) in non-hydrostatic mode, as long as there is
1048        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1049    o pkg/cost
1050      extend simple cost functions to treat time mean quantities
1051      (T,U,V) via cost_accumulate_state from cost_tile
1052    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1053        be 2 times larger than the minimum size the advection scheme requires.
1054        now get a perfect conservation of salt in advect_cs test-exp (updated)
1055    o GGL90 (Gaspar's TKE mixed layer)
1056      - add horizontal diffusion of TKE, requires exchanges in
1057        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1058        default. In OPA there is no horizontal diffusion of TKE but the
1059        mixing coefficients are computed from a horizontal average of TKE of
1060        6 points or so. I think that diffusion has a little more physical
1061        justification.
1062      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1063        was in vain)
1064      - mask tke-variable in ggl90_init
1065    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1066    o fix biharmonic diffusion on CS-grid.
1067    o more obcs stuff
1068      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1069        for reading boundary values. This routine is called from
1070        obcs_prescribe_read
1071      - updated obcs_check
1072      - changed sponge layer relaxation parameter units for days to seconds
1073      - turned off sponge layer by default
1074      - changed argument list of OBCS_CALC to myTime+deltaTclock
1075      - fixed about 35 bugs in obcs_external_fields_load
1076    
1077    checkpoint55c_post
1078    o obcs stuff
1079      - new runtime flags useOBCSprescribe, useOBCSbalance
1080      - re-arranged obcs_calc
1081      - moved exf_getobcs to obcs_prescibe_read
1082        obcs_prescibe_read is called after ORLANSKI stuff
1083        and independent of it (executable can contain all).
1084      - updated obcs_check
1085      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1086        These may be necessary only if tangential velocities are
1087        prescribed at OB, not sure, needs testing.
1088    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1089      which simplifies the calls and passes the ifc check-bounds test
1090    
1091    checkpoint55b_post
1092    o add a 2D scalar, Z location, exchange_2 routine.
1093    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1094      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1095      affects advect_cs results (for the wrong reason): update output.txt
1096    o use a more standard discretization for biharmonic viscosity ;
1097     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1098      affects results of dome set-up: update output.txt
1099    o fix gad_advection.F (CubedSphere part), back to version 1.23
1100    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1101    
1102    checkpoint55a_post
1103    o merged code to
1104      * prescribe/read time-dependent open boundaries
1105        (works in conjunction with exf, cal)
1106      * sponge layer code for open boundaries
1107      * each boundary N/S/E/W now has its own CPP option
1108        (healthy for the adjoint)
1109    
1110    checkpoint55
1111    o up-to-date adjoint of previous breaks
1112      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1113      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1114      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1115      - carbon: * remove tr1-related adjoint verification
1116                * add ptracer as control variable
1117    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1118      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1119    
1120    checkpoint54f_post
1121    o in verification/carbin/ remove experiment related to
1122      ALLOW_PASSIVE_TRACER (array tr1 etc)
1123      code_ad/ input_ad/ results_ad
1124    
1125    o add two new packages
1126      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1127        + subject to optimization (memory)
1128      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1129        + subject to reordering (many GOTOs in the original code)
1130        + so far opps is called for every (i,j) point, and then operates in
1131          the vertical; one may want to reorder the scheme in order operate in
1132          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1133          fields)
1134    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1135      - all verification tests compile and run with linux_ia32_g77
1136      - defaults are compatible with current input files--nothing
1137        should change if you were not previously using MNC
1138      - MNC output has been added in numerous places (eg. timeave)
1139        but there are still a few writes not yet do-able with MNC
1140        (this is in progress)
1141      - flags now allow for either/or/both use of MDSIO and MNC and
1142        documentation will soon follow
1143      - numerous small formatting cleanups for ProTeX
1144    o add version info (via BUILD_INFO.h) to MNC and stdout
1145    
1146    checkpoint54e_post
1147    o add two new packages
1148      - pp81 (Packanowski and Philander, 1981), Richardson number and
1149        stratification dependent mixing
1150      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1151      - these scheme operate in a similar manner as KPP (without ghat, of
1152        course), however there is only one diffusivity that is used for both
1153        temperature and salinity (and passive tracers)ç
1154    o add offline package
1155    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1156      provided by Stephanie Dutkiewicz
1157    o genmake2: add ability to search for C compilers and cleanup test output
1158      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1159    
1160    checkpoint54d_post
1161    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1162    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1163      leading to additional shift by 5 days each year of integration
1164       (i.e. leading to considerable offset over the years)
1165    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1166    o start with no AB and no initial filtering (staggerTimeStep):
1167      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1168    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1169      (external loading & cpl import/export stay in forward_step.F)
1170    o update coupling interface to work with new staggerTimeStep
1171    o change MDSIO ptracers_pickup.
1172    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1173    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1174    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1175    
1176    checkpoint54c_post
1177    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1178      this affects (truncation error) output.txt of test-exp:
1179       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1180    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1181    o change Qnet to always be the net heat flux, (+upward).
1182      affects (truncation error) output of natl_box exp.: updated
1183    o define the max number of passive tracers in PTRACERS_SIZE.h
1184    o start to test mnc routinely in exp0
1185    o add sea-ice loading (sIceLoad) as a new forcing field.
1186    
1187    checkpoint54b_post
1188    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1189       impressive on Altix and Opteron systems)
1190    o diagnostics can now write NetCDF files through the mnc package
1191    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1192    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1193    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1194      affects (truncation error) output of lab_sea & natl_box exp.: updated
1195    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1196    
1197    checkpoint54a_post
1198    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1199    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1200    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1201    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1202      + internal_wave (shift in writing cg2d_ini_res)
1203    checkpoint54a_pre
1204    
1205    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1206      - modified verification/lab_sea and natl_box_adjoint accordingly
1207    
1208    checkpoint54
1209    checkpoint53g_post
1210    o prepare splitting of thermodynamics: store convect.counter in common block
1211    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1212      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1213    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1214    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1215    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1216    o restore adjointability
1217    
1218    checkpoint53f_post
1219    o modifications that affect AIM experiment results (update output.txt):
1220      - no advection of S at top interface Nr (pkg/generic_advdiff)
1221      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1222    o AIM pkg:
1223      - include stability function into surf.Flux derivative relative to Tsurf
1224      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1225    
1226    checkpoint53e_post
1227    o merged cylindrical coord configuration
1228    o added rotating_tank experiment
1229    checkpoint53e_pre
1230    
1231    checkpoint53d_post
1232    o faulks upgraded: re-generate output.txt that have changed:
1233       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1234    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1235    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1236    o added Sadourny discretization of Coriolis
1237      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1238      - re-enabled use of omega3 (useAbsVorticity)
1239    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1240      vector-invariant equations
1241      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1242    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1243      hopefully without new bugs
1244      - still to do: biharmonic friction for non-hydrostatic w
1245    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1246    o regenerated output for global_ocean_ebm (using -ieee)
1247    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1248      of mom_common/
1249      - simple re-arrangement of instructions within computing loop
1250    checkpoint53d_pre
1251    
1252    checkpoint53c_post
1253    o new version of coupler for AIM+thSIce and Ocean models
1254     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1255     - land: change Evaporation of snow
1256     - aim with thSIce: fix bug in snow-precip.
1257    o changes to calc_gw.F
1258     - bug fix for w^2 term near the bottom boundary
1259     - (hopefully) improve the lateral slip boundary condtions for use with
1260        partial/looped cells
1261      - because the bug fix changes two verification experiments anyway (exp5
1262        and plume on slope), change the lateral boundary condition from half slip
1263        to the value of no_slip_sides
1264    o ebm package wasnt quite up to the parallel task. Fixed that.
1265    o Adjoint of EBM package + verification
1266      * TLM OK
1267      * ADM not sufficient accuracy yet (needs further testing)
1268    
1269    checkpoint53b_post
1270    o Commiting new energy balance model to repository
1271      * package is pkg/ebm
1272      * verif. is verification/global_ocean_ebm
1273      * references are in ebm_driver.F
1274    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1275    C        Global thermohaline circulation. Part I:
1276    C        Sensitivity to atmospheric moisture transport.
1277    C        J. Climate 12(1), 71-82
1278    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1279    C        Global thermohaline circulation. Part II:
1280    C        Sensitivity with interactive transport.
1281    C        J. Climate 12(1), 83-91
1282    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1283    C        Destabilization of the thermohaline circulation
1284    C        by atmospheric eddy transports.
1285    C        J. Climate 7(12), 1870-1882
1286    o Will need long integration testing.
1287    checkpoint53b_pre
1288    
1289    o created pkg/mom_common in preparation for variable viscosity code
1290    o renamed and split ini_mnc_io
1291    o pkg/land: only liquid water can diffuse or run-off
1292    o AIM using land: soil wetness availability account for snow
1293    o added printMapIncludesZeros to EEPARMS namelist
1294    
1295    checkpoint53a_post
1296    o restore TAMC compatiility for exf_constants.h
1297      (no usage of _d in .h)
1298    o Additional storing in KPP in an attempt to fix
1299      TAMC problem with adjoint of KPP code.
1300      (no success...)
1301      Identical code works fine with TAF.
1302    o Fixed verification/natl_box_adjoint experiments.
1303      Initial conditions for Experiments 4 and 5 are now
1304      set to "SEAICE_initialHEFF=0", which is more reasonable,
1305      and hence gives results closer to that of Experiment 2.
1306      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1307    
1308    checkpoint53
1309    o stable checkpoint with up to date adjoint
1310      TLM tests only run for 1st grdchk at the moment. Its unclear if
1311      this is a code problem or a problem with resetting code for g_
1312      variables that is being autogenerated wrong.
1313      Otherwise:
1314       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1315       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1316         are both still in chaos following their security messes.
1317    
1318    checkpoint52n_post
1319    o various build (mostly genmake2) changes including:
1320      - ability to build/run more easily within Cygwin and MacOS X
1321      - more complicated Makefiles with a stronger dependence on Gnu Make
1322    o pkg/seaice modifications
1323      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1324        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1325        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1326      - changed proxy for geostrophic velocity and updated
1327        verification/lab_sea/results/* accordingly
1328      - removed ADI dynamic solver from pkg/seaice
1329      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1330        they caused a segmentation fault under certain circumstances
1331      - removed unused field WATR
1332    o bug fix in exf-package:
1333      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1334         now reflect that.
1335    o small fixes in the cal-package:
1336      - set reference date to first of January for the 'model'-calendar
1337      - failing of cal_CheckDate in cal_FullDate now actually results in a
1338        warning
1339    o small modifications in exf-package to increase flexibility:
1340      - change climtempfreeze from a constant to a runtime parameter that
1341        is specified in data.exf_clim (default = -1.9)
1342      - introduce runtime parameter windstressmax (default = 2.0) that is
1343        specified in data.exf
1344    o fix in pkg/thsice:
1345      - update Evap (Tsf changes) to be consistent with Latent heat flux
1346      - maintain snow precipitation unchanged (even if Tsf >=0).
1347     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1348    
1349    checkpoint52m_post
1350    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1351      this does not change any of the results, because myIter=0 in swfrac always
1352      lead to jwtype=2 (the default anyway), but the call makes little sense
1353      as a default
1354    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1355    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1356      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1357    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1358    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1359    o extending useSingleCpuIO option to work with new exch2 I/O format
1360      - old-style, missing-tile I/O is still accessible by defining CPP
1361        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1362    o monitor package can write to NetCDF files and/or STDOUT
1363    o fix re-definition bug in MNC_GRID_INIT_ALL()
1364    o doc/api_reference added
1365      - a framework for building an API Reference Manual using all
1366        the "protex" comments embedded in the code
1367      - see pkg/generic_advdiff, pkg/mnc for examples
1368    o MNC:
1369      - make myThid the last argument for all subroutines
1370      - new default for the grid files: NO halos
1371      - add useMNC and other run-time flags
1372      - separate per-file-group handling of the unlimited dimension
1373      - early initialization of MNC w/ flags read at the eeboot stage
1374        and lookup tables set in initialize_fixed
1375      - write all MNC output to a freshly-created directory
1376    o thermodynamics sea-ice (thsice) is now tested with testreport.
1377    o test exp. advect_cs: use the standard cs32 grid ; update output.
1378    o Added functionality to grdchk:
1379      pick global i,j,k position (or nearest wet) where to perform check.
1380    
1381    checkpoint52l_post
1382    o new land formulation:
1383      a) use ground enthalpy as prognostic variable to ensure exact
1384         energy conservation.
1385      b) account for water temperature and for latent heat of freezing
1386         in all processes (rain, run-off, ground storage)
1387      c) compute surface and ground temperature implicitly.
1388    o aim_v23 modification for new land model:
1389      a) Treat separately land / ocean / sea-ice surface fluxes
1390         to allow implicit computation of land & sea-ice surface temp.
1391      b) add snow precipitation.
1392    checkpoint52l_pre
1393    
1394    o fix problem (when 1 tile is empty) in min/max monitor.
1395    o fix bug in timeAve (u,vZetatave in common block)
1396    o no restoring terms under ice for pkg/seaice
1397    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1398    o bug fix for pkg/seaice pickups
1399    o change MNC call locations and add coordinate attributes
1400    o mask vorticity at the corner ; affects global_ocean.cs output
1401    o fix ini_curvilinear_grid ; test CS experiments with mpi
1402    o aim.5l_cs: modify sea-ice fraction input file ; update output
1403    o exf: Adding simple range check routine for exf fields after read
1404    
1405    checkpoint52k_post
1406    o removed top-level directory "diags"
1407      - we migrated these functions to pkg/timeave a long time ago
1408    o fixed bug introduced in pkg/monitor
1409    o accuracy ctrlprec = 32 insuffient for gradient checks using
1410      averaged fields (I/O via cost_averages)
1411      -> use ctrl.h in active_file*.F to control I/O precision.
1412    o paramter list of CALL ADTHE_MAIN_LOOP
1413    o added initial do_the_model_io to ecco
1414    o set all ...Freq to zero after cost_final
1415      taveFreq, dumpFreq, pChkptFreq
1416    o MAIN and ECCO differentiability restored
1417    
1418    checkpoint52j_post
1419    o fix nchklev in tamc.h for global_ocean...
1420    o Bringing flow and store directives up-to-date
1421    o Really weird thing!
1422      call do_the_model_io from the_main_loop with parameters
1423      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1424      TAF places a faulty re-call of initialise_varia
1425      after cost_final call which should not be there!
1426    checkpoint52j_pre
1427    
1428    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1429      error messages
1430    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1431    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1432      debug output
1433    o modfied mdsio_writefield.F to handle non-global files under exch2
1434    o update AIM Cubed-Sphere exp (aim.5l_cs):
1435      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1436    o update AIM Equatorial Channel exp:
1437      use standard aim_v23 pkg and change the SST fields to be more realistic.
1438    o globalFile now works with exch2
1439    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1440      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1441    o limit timeave output for hi-res integrations
1442    
1443    checkpoint52i_post
1444    o removed CPP_EEOPTIONS.h from verification/*/code
1445    o updated the tiling for global_ocean_pressure
1446    checkpoint52i_pre
1447    
1448    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1449      the old pkg/aim).
1450    
1451    checkpoint52h_pre
1452    o shortened offending lines in exch2_send_rx?.template
1453    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1454    o genmake2: add build & execute test for NetCDF code
1455    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1456      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1457    o added useSingleCPUIO flag to monitor.F and mon_out.F
1458    o added temporary hack for sea-ice dynamics on the cube:
1459      metric terms are ignored and it is assumed that
1460      there is no sea-ice on cube faces 1, 2, 4, and 5.
1461    
1462    checkpoint52f_post
1463    o added exch2 cube routines to pkg/exch2
1464    o modified hs94.cs-32x32x5 to use it
1465    o added new grid files to hs94.cs-32x32x5
1466    checkpoint52f_pre
1467    
1468    checkpoint52e_post
1469    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1470      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1471    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1472      to work with implicit vertical advection and AB ;
1473    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1474    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1475     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1476    checkpoint52e_pre
1477    
1478    o fix bug in impldiff when Nr=1 or Nr=2.
1479  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
1480  o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.  o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1481  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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