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revision 1.226 by jmc, Tue Dec 16 15:16:39 2003 UTC revision 1.745 by jmc, Fri Nov 17 20:01:26 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    checkpoint58r_post
8    o modifications to pkg/seaice/growth.F, which change results of
9      lab_sea experiment: fixes pertain to melting snow over open water, to
10      masking EVAP under sea ice, and to using the correct AREA variable for
11      computations of EVAP, PRECIP, HSNOW, and GHEFF
12    o add ability to read bathy, salt, and theta using MNC (off by def)
13    o add flooding algorithm and advection of HSNOW for pkg/seaice;
14      both are turned off by default and do no change any results
15    o seaice advection with pkg/thsice: a step toward the use of non-linear
16      advection scheme, but #ifdef or commented out for now (requires more EXCH).
17    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
18      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
19      in natl_box (affects results @ truncation level: update output.txt)
20    o multi-threading and IO:
21      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
22      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
23        (needed to work with SingleCpuIO): tested in all verif. exp.
24    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
25      affects the results (but none of the verification test uses this scheme).
26    o Adding some pkg/diagnostics capability to pkg/seaice
27      (will certainly be subject to changes)
28    o ctrl: adding new control variables:
29      lwflux, lwdown, evap, snowprecip, apressure, runoff
30    
31    checkpoint58q_post
32    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
33      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
34      high_res_cube configuration by 4% on Columbia.
35    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
36      add (in global_with_exf/code) a version of EXF_INTERP_READ without
37      dynamical allocation (seems to work in multi-threaded).
38    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
39      single CPU io) so that TAF does not have to see EESUPPORT.h
40    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
41    
42    checkpoint58p_post
43    o obcs: stop if obcs is used with useCDscheme = .true.
44    o shelfice:
45     - fix a sign error so that no slip at shelfice interface works
46     - remove stop for combination non-hydrostatic code and shelfice. That does
47       not mean, that the results are correct, but at least they are numerically
48       stable
49    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
50    o added adjoint exch routined for all exch*3d* routines
51      and updated flow directives
52    
53    checkpoint58o_post
54    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
55      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
56    o change controling S/R for writing pickup file (new S/R do_write_pickup)
57      and clean-up reading/writing of pickup files.
58    o fix local version of read/write pickup (NH part) in rotating_tank/code
59    o simplify EXCH interface:
60     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
61     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
62    o added the regrid package
63    o shelfice:
64     - add a simple boundary layer scheme to reduce noise
65     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
66    
67    checkpoint58n_post
68    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
69       local variable (not in common block).
70    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
71      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
72      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
73        to work with SingleCpuIO.
74    o add "_d 0" to real constant of pkg/cfc subroutines ;
75       update exp. cfc_exemple & tutorial_cfc_offline output files.
76    o multi-threading and IO:
77      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
78        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
79      - barrier before and after reading.
80      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
81      - avoid using MDS_WRITELOCAL for LAND pkg output.
82      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
83        common-block variables ; Allows multi-threading with master-thread IO.
84    o change default MAX_NO_THREADS from 32 to 4 ;
85      and stop cleanly when MAX_NO_THREADS is too small.
86    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
87    
88    checkpoint58m_post
89    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
90       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
91    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
92       keep global_ocean.90x40x15 (for AD testing) with former secondary test
93       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
94    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
95        add MITgcm_tutorials (= code + all the tutorials)
96    o ecco, option to compute cost for total ssh (mean+anom)
97    o consistent with addition of ptracer and ssh in pkg/profiles
98    o profiles: adding ptracer and ssh
99    o testreport: change multi-test output-file name
100      (from output.txt.{name} to output.{name}.txt)
101    o profiles: now ok for mutli-tiles case
102    o seaice: add 4 parameters for different advection schemes for area,
103      (effective) seaice thickness, enthalphy, and snow height. Their default
104      is the standard parameter SEAICEadvScheme
105    o calc_gw:
106     - add cosFacU in zonal viscous flux (harmonic.visc.).
107     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
108       of tutorial_plume_on_slope.
109    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
110    o calc_gw: true flux-form, account for horizontal grid spacing.
111      update rotating_tank results, but not plume_on_slope (affected at
112      truncation level, 11 digits).
113    
114    checkpoint58l_post
115    o calc_gw:
116     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
117     - remove side-drag for now (need to fix it); update plume_on_slope results.
118     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
119    o commit code to make SST/SSS weights spatially variable
120      (based on either variable in-situ or variable initial T/S weights)
121    o pkg/ecco:
122      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
123        now based on horizontally varying weights wthetaLev, wsaltLev
124      * cost_averagesflags now returns year indices in addition to day, month
125      * sflux balance is performed on annual basis
126        (sflxumm, sfluxmm2, bal_sfluxmm)
127      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
128        including separate counting and multipliers
129    o pkg/rbcs
130      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
131    
132    checkpoint58k_post
133    o testreport:
134     - always build in dir. "build" (if not there, mkdir build instead of building
135       & running in input)
136     - run in dir run (if it exists), in build otherwise.
137     - call prepare_run (if input/prepare_run exists)
138     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
139    o pkg/exf modifications to interpolation and rotation routines for more
140       reasonable treatment of North Pole singularity: for tracers North Pole
141       value is set to northernmost zonal-mean value, for zonal velocity it is
142       set to zero, and for meridional velocity it is set to northernmost value.
143    o pkg/exf/exf_check_range.F
144     - add tile index to diagnostics and move stop statement to the very
145       end of the routine.
146    o pkg/diagnostics: (diagnostics_main_init.F)
147      define title of isomorphic variables according to the current config.
148    o pkg/thsice with pkg/seaice dynamics:
149    - fix domain of computation (interior only, required for exf) and do exchanges
150    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
151    o towards a standard way of dealing with multi-threading in MONITOR
152      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
153    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
154       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
155    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
156    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
157    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
158       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
159    o tracer advection:
160     - clean-up and simplify calc_common_factors.F
161     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
162       advection subroutine (but still not used within DST advection S/R)
163    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
164    
165    checkpoint58j_post
166    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
167      from file (collects calls previously in FORWARD_STEP)
168    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
169    o adjoint store dir. adjusted accordingly
170    o genmake2
171      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
172    
173    checkpoint58i_post
174    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
175      on wind stress (SEAICEstressFactor defaults to 1.)
176    o Total number of Timers is finite (<=40): comment out 2 non-essential one
177      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
178    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
179      on CS-grid: no longer loosing mass.
180    o exf & curvilinear-grid: no longer modify longitude xC & xG.
181    o pkg/ggl90: fix sloppy output and fix a bug
182    o pkg/seaice: added SEAICEuseEVPpickup parameter
183      - Set to false in order to start EVP solver with
184        non-EVP pickup files when using SEAICEuseEVP
185      - fix sign error in diffusion in seaice_calc_rhs
186    
187    checkpoint58h_post
188    * Modifications for bottom topography control
189      o replace hFacC by _hFacC at various places
190      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
191      o add non-self-adjoint cg2d_nsa
192      o update autodiff support routines
193      o re-initialise hfac after ctrl_depth_ini
194      o works for 5x5 box, doesnt work for global_ocean.90x40x15
195    * Adding verification for 5x5 box (4-layer) bottom topography control
196    
197    checkpoint58g_post
198    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
199       used for mean seasonal cycle, mean diurnal cycle); add an example
200       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
201    o pkg/ggl90:
202      - add parameter (minimum surface kinetic energy)
203      - fix bug (avoiding division by zero)
204    o couple pkg/thsice to pkg/seaice:
205      - modify advection in seaice to accomodate new scalar fields to be advected
206      - only muliDimAdection scheme work with seaice/thsice
207      - mapping of thsice-variables to seaice-variables, back and forth
208      - does not break the verification experiments, but does not give the
209        desired results either
210    o pkg/seaice
211      - make (default) second order advection a bit less confusing?
212    
213    checkpoint58f_post
214    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
215      to pkg/seaice):
216      - new routines thsice_map_exf and thsice_get_exf provide the interface
217      - add an additional formal parameter to thsice_solve4temp
218    o pkg/exf:
219      - add new fields wspeed, snowprecip (to be able to couple to thsice)
220      - correct Stefan-Boltzmann constant
221      - new parameter for longwave surface emittance
222      - separate some stuff from exf_bulkformulae into new routines  
223        exf_radiation, exf_wind
224      - add new parameters and constants: longwave emissivity for ocean, ice
225        and snow, evaporation parameters over ice
226      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
227        either wind from stress or stress from wind
228    o pkg/thSIce:
229    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
230    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
231       and THSICE_CALC_THICKN
232    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
233    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
234      to make debugging easier.
235    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
236    o pkg/bulk_force:
237      - clean-up comments and parameters ;
238      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
239    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
240      generate new output for test-experiment: aim.5l_cs.thSI
241    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
242      testreport accordingly
243    
244    checkpoint58e_post
245    o SEAICE_CGRID adjoint done
246    o R_STAR adjoint implemented.
247      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
248      * need to sort out init. of h0facc, etc.
249    o Make pkg/profile fully independent of ecco,cost, etc. stuff
250      to be able to use it in pure forward.
251    
252    checkpoint58d_post
253    o upgrade simple test-experiment to tutorial example:
254     step.1: duplicate the experiment and (step.2) will remove the old copy.
255      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
256      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
257      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
258      tutorial_global_oce_biogeo    <- copy of dic_example
259      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
260      tutorial_plume_on_slope       <- copy of plume_on_slope
261      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
262      tutorial_global_oce_optim     <- empty for now (David ?)
263      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
264     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
265    o correct a sign problem in cost_scat.F
266    o obcs and ptracers: fix boundary conditions for advections schemes
267      with larger stencil
268    o thsice adjoint: start
269    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
270      completeness
271    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
272      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
273    o ptracers adjoint:
274      * avoid extensive recomputatations
275      * fix missing re-init. of gptr (missed by TAF)
276    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
277      me to turn off the excessive output to STDOUT that this package produces
278    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
279      and add those terms in Vector-Invariant formulation.
280    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
281      if the control period (xx_hfluxperiod etc) is 0
282    o in profiles pkg, clean routines and fix details
283    o in ecco pkg, reading ssh data:
284      fix problem in case the model does not start at iter0=0
285    o fix mnc-pickup/restart for ptracers
286    o new package prifiles:
287      code to compute profile-based cost by Gael Forget
288      (modifs in ecco, ctrl, autodiff)
289    o Benign bug fix in initialization (spotted by M. Mazloff) of
290      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
291    
292    checkpoint58c_post
293    o adjoint: finish NLFS adjoint and provide reference output in
294      verification/global_ocean.90x40x15/results_ad_nlfs
295    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
296      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
297      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
298      with SEAICE_CGRID defined.
299    o move calendarDumps from "data" to "data.cal" and clean-up the code
300      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
301    o add useEXF & useCAL flags (for now, set in hard-coded way)
302    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
303      (were missing in NH mode, and wrong in quasihydrostatic mode).
304      waiting for Chris updated version of calc_gw to add those CALLs.
305    o fix bug in quasihydrostatic S/R ;
306      add a test for this option: global_ocean.90x40x15.qshyd
307    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
308      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
309    o add on/off flag useOffLine for package OFFLINE
310    o seaice:
311      - modify advection so that it works also on the C-grid
312      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
313        problem in multi-tile runs with C-grid
314      - add flags for clipping ice velocities and/or masking solver forcing
315      - fix drag (ocean on ice) formulation and a bug that caused noise in the
316        C-grid solver
317      - added a few comments to seaice_diffusion.F
318      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
319        are now exclusive)
320      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
321        required re-ordering the code a little:
322       + make DAIRN global variable (defined in SEAICE)
323       + move computation of the viscosities eta and zeta into a new separate
324         routine (because I need to recompute them in seaice_ocean_stress.F)
325    
326    checkpoint58b_post
327    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
328      update output.txt of exp. aim.5l_cs.thSI
329    o various mnc cleanups and improvements:
330      + shrink lookup tables by factor of ~4
331      + better error reporting when running out of lookup space
332      + able to handle longer path/file names (up to 500 chars)
333    o adjoint:
334      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
335      - TBD: "hidden" mom_vecinv recomp. in dynamics
336    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
337     (allow to differentiate between forcing components using new integer flags:
338      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
339     and add new flag to put Dissipation tendency out of Adams-Bashforth.
340    o ecco
341      - enable trend removal from SSH anomaly obs.
342    o adjoint
343      - a fix for PmEpR when #undef EXACT_CONSERV
344      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
345      - try to fix "hidden" recomp. in forward_step for NLFS
346        (NLFS seems broken sometimes after I checked it in)
347    o seaice:
348     - add c-grid version of the dynamic solver:
349       + three new routines that are the c-grid substitute lsr, dynsolver
350         and ostres
351       + put a few fields that were local to dynsolver into global common
352         blocks, so that I can move the computation of stresses etc into
353         seaice_lsr (saves coding but may break the adjoint).
354     - replace more hardwired parameters by runtime parameters
355     - add ice masks that mask the rhs of the implicit solvers where there
356       is no ice (commented out in seaice_dynsolver, because i am not sure
357       if this works properly), eventually this should replace the clipping
358       of ice velocities in seaice_dynsolver to +/-40cm/s.
359    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
360      include it only where its needed
361    o move balancing of fluxes before the call of external_forcing_surf
362    o seaice:
363      - correct units of turning angles (now they are really in degrees)
364      - move computation of GWATX/Y out of main routine into dynsolver
365      - initialize GWATX/Y in seaice_init
366    o Apply mask on Fresh-Water flux (needed for SSH forcing).
367      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
368    o seaice: add runtime flags for turning angles (default to zero)
369    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
370      and trend from exf forcing and ctrl control adjustments
371    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
372      (since checkpoint57x_post)
373    o change the default rotation period to 86164.s = the Earth rotation
374    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
375      and based on a reference stratification. Tested within hs94.cs-32x32x5.
376    o seaice advection: add code for choosing between the default (2nd order
377      central differences) and multiDim advection schemes provided by
378      pkg/generic_advdiff
379    o seaice:
380      - removed all references to SEAICE_GRID.h fields from
381        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
382        (cubed-sphere configuration will change a little)
383      - grid computations in seaice_init are obsolete now.
384      - cleaned up code a little so that is easier to read (hopefully).
385      - added new (better?) discretizations of default advection and diffusion
386        (turn on with SEAICEuseFluxForm)
387      - replace 1 in 3d global fields by kSurface in growth.F
388      
389    checkpoint58a_post
390    o seaice:
391      - bug fix in advect.F
392    o shelfice:
393      - separate shelfice load anomaly from pload (breaks with time
394        dependent forcing), => introduce constant field shelficeLoadAnomaly.
395        Its default is 0., but it may be computed more cleverly from (unknown)
396        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
397        done offline. A good approximation of the pressure load anomaly is
398        necessary to avoid large initial adjustment processes underneath
399        deep-reaching shelfice.
400      - small fix in ISOMIP shelfice_thermodynamics
401      - add more sophisticated thermodynamics of Hellmer (1989), this is
402        now the default
403      - give a few constants more intuitive names
404    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
405      if bulk formulae are used in long integration (especially EmPmR). Turn
406      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
407      if balancePrintMean, the imbalance that is substracted is printed to
408      STDOUT.
409    o fix bug (typo) in obcs_apply_eta.F
410    o add a new package shelfice which enables us to model the circulation
411      underneath shelf-ice with draughts of hundreds of meters.
412     - works
413     - to do: + include improved thermodynamics
414              + check whether kSurfC (from model/inc/SURFACE.h) can be used
415                instead of new field kTopC
416              + can we use topoFile, Ro_surf and existing code in ini_depth.F
417                instead of new field R_shelfIce and new code in ini_depth.F
418                and ini_mask_etc.F?
419              + adjust vertical mixing schemes?
420    o seaice pkg:
421     - add a cpp-flag to include a simple formula for a salinity dependent
422       freezing point of sea water at the surface
423     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
424       meridional stresses are now different (and hopefully correct)
425    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
426       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
427       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
428    o pkg/diagnostics: add options and parameters for regional-statistics
429       diagnostics ; define regions by reading a region-mask from a file
430       (might add other options later)
431    o pkg/bulk_force:
432     - add option and parameters to use AIM surface-flux formulae.
433     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
434       others forcing fields (defined in PARM05, parameter file "data") are loaded
435       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
436     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
437     - use the right EXCH call for uwind,vwind (to work on CS-grid).
438     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
439       and parameters (note: calcWindStress replaces .NOT.readwindstress).
440     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
441    
442    checkpoint58
443    o add "--embed-source" option to genmake2 which, when the supporting
444      tools can be compiled (as determined by genmake2) will turn on the
445      embed_files package which then embeds the entire MITgcm source code
446      (*.[fFhc] + Makefile) used for the build within the executable
447      - requested by CNH but off by default
448      - adds a paltry <9MB to the mitgcmuv executable in most cases
449      - only writes the output when useEMBEDSRC in eedata is true
450    o clean up 3-dim. relaxation codes:
451      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
452      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
453      * Thanks to Tom Haine for testing!
454    
455    checkpoint57z_post
456    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
457      affects output (@ truncation level) of exp. plume_on_slope ; updated.
458    o fix the pickup behavior for obcs in combination with ptracers
459    o fix a bug in ptracers_external_fields_load
460    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
461      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
462    o transfered surface NH pressure to eta field (if exactConserv).
463    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
464         and update lab_sea output.txt file.
465    o completing 3-dim. relaxation code: additional term
466         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
467      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
468      * At compile time, in "EXF_OPTIONS.h" set
469          #define  ALLOW_CLIMTEMP_RELAXATION
470          #define  ALLOW_CLIMSALT_RELAXATION
471      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
472          tauThetaClimRelax3Dim = 15552000.0,
473          tauSaltClimRelax3Dim  = 15552000.0,
474      * 3 cases:
475          1) Use a constant-in-time 3-dim. field
476          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
477          3) Real-time relax. to time-evolving prescribed field
478    o Adding Laplacian-type smoothness constraint on
479      initial and boundary (forcing) controls (ic, bc)
480      * enable at compile-time via
481        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
482      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
483      * Absolute scale somewhat unclear so far
484      * no area weighting was included since no other cost term does so far
485    
486    checkpoint57y_post
487    First step for a NLFS adjoint
488    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
489    o new init. routines for calc_r_star, calc_surf_dr
490    o still need to deal with ini_masks_etc
491    o testreport seemed happy
492    checkpoint57y_pre
493    
494    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
495    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
496    o add new offset feature to offline pkg (plus minor cleanup)
497    o cfc fixes for final year of integration
498    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
499      be in GCHEM_OPTIONS).
500    
501    checkpoint57x_post
502    o fix testreport Pb in multiple test experiment.
503    o cleanup our namelist syntax in verification:
504      - make it more F95 standards compliant (some work still needed)
505      - allows the vast majority of our tests to work with gfortran
506    o Non-Hydrostatic:
507     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
508     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
509    o Allow to apply AB on T,S rather than on AB(gT,gS):
510     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
511     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
512       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
513     - need a "clever" read_pickup to restart from the other AB formulation
514    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
515    o remove some unused variables (reduces number of compiler warnings)
516    o adjoint
517      * Disable useVariableViscosity for adjoint for time being
518        (there are a number of extensive recomputations)
519      * Initialize certain variables needed for adjoint
520    
521    checkpoint57w_post
522    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
523                 fix the singleCpuIO RS version of MDSWRITEFIELD
524       and add a WARNING if using globalFiles=T with multi-processors.
525    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
526      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
527    o tracer advection scheme:
528      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
529       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
530       was not very convenient).
531      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
532       (further tests needed for the implicit DST & Flux-Limiter schemes).
533    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
534      and sRef for convenience, handy, when you want to initialize
535      ptracers in a large domain with a constant non-zero value. Also,
536      untangle ptracers_init.F a little.
537    
538    checkpoint57v_post
539    o change dome exp. to use variable viscosity in side-drag terms.
540    o remove all the files from the cfc_offline test since they are now
541      incorporated into tutorial_cfc_offline which has been producing
542      identical results for a few days of testing
543    o add new parameter: sideDragFactor to enable half-slip-side BC
544      and change side-drag S/R to use viscosity from mom_calc_visc
545      (can switch back by setting sideDragFactor=0.); affects results at
546      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
547       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
548    o vorticity & strain are now computed without masking, to account for
549      no-slip-side BC in variable viscosity calculation ; mask is applied
550      anyway later on, before computing advection/coriolis terms.
551    o modify exp4 to test new obcs support for reading from external files
552      and for passive tracers
553    o fix behavior of ptracers_monitor when monitor output is written to a
554      netcdf-file; still not independent of monitor.F (writes in the same
555      file).
556    o change default value of tRef (put a uniform, meaningful value for ocean
557      & atmos) and initialize sRef (was missing, as Martin mentioned).
558    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
559      to be proportional to enstrophy dissipation length.  Thus,
560       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
561      This is now consistent with Smagorinsky and with the manual.
562    
563    checkpoint57u_post
564    o OBCS and PTRACERS: add open boundary support for passive tracers
565      - either use homogenous (pseudo) v.Neumann conditions or prescribe
566        OB-values from file; this is not different from the way theta and salinity
567        are treated
568      - however, Orlanski-radiation conditions are not supported, and the model
569        will stop if you use pTracers and Orlanski at the same time.
570      - beefed up the rountine obcs_external_fields_load: now only those open
571        boundary values are overwritten with values from files for which there
572        are really files, otherwise the OB-fields remain untouched. This makes
573        it possible to use different OBs at different ends of the domain (as
574        with EXF)
575    o reduce number of exch calls in shap_filt (s2).
576    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
577      truncation level) 4/5 MLAdjust test results (11&12 digits match).
578    
579    checkpoint57t_post
580    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
581    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
582      same truncation, independent of the face number: affects affects several
583      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
584    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
585      note that biharmonic viscosity + no-slip was not tested in any experiment.
586    o fix bug in non-linear free-surf side-drag ; generate new output for
587      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
588    o make mnc honor the writeBinaryPrec flag for most kinds of output
589    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
590    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
591      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
592    o add brackets in multi-terms sum to get same truncation, independent of
593      the face number (manage to get exactly same value of gU,gV at the cs-edge)
594      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
595    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
596      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
597      a maximum grid-scale Reynolds number.  Also, changes all length calculations
598      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
599      Suggested values of viscosity parameters found in mom_calc_visc.
600      Many new viscosity diagnostics available.
601    
602    checkpoint57s_post
603    o Add clearing-house for viscosity calculations, mom_calc_visc and
604      correct numerous bugs in LeithD and Smagorinsky discretizations.  
605      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
606      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
607      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
608      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
609      The Strain-Tension form is now called with useStrainTensonVisc=.true.
610      ViscAhStrain and viscAhTension are now retired.
611    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
612    o In response to JMC's bug report, genmake2 now ignores any soft-links
613      that it finds in the *current* directory when searching for files.
614      Soft-links found in any other source directories will still work as
615      they did before.
616    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
617      a C routine to unlimit the stack size
618    o mnc-ify pkg/aim snapshot vars
619    o mnc-ify pkg/land as requested by Daniel
620    o various changes to mnc including:
621      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
622      - output can now be grouped so that all files within a group
623          change the ITER portion of their names in lock-step together
624      - can now read ("global") PER-FACE (in addition to PER-TILE) files
625          and works with both EXCH1 and EXCH2 (but needs more testing)
626      - writing works for all verification test cases w/ g77 on Linux
627    
628    checkpoint57r_post
629    o make MNC variable initialization happen earlier
630    o add diagnostics for (almost) each term of the momentum Eq.
631    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
632    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
633    o remove MINIMAL_TAVE_OUTPUT option ;
634      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
635    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
636      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
637    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
638    o add time-dependent SST, SSS control
639    o cost terms in ecco/ modularized (new cost_generic.F)
640    o cost_averages routines are modularized (new cost_averagesgeneric.F)
641    o new infrastructure for seaice model vs. obs misfits in seaice/
642      * driver from the_main_loop.F is seaice_cost_driver.F
643      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
644      * gradient check in Exp. 6a of natl_box_adjoint/
645    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
646      (see README file)
647    
648    checkpoint57q_post
649    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
650    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
651      - bug was reported by Jean-Michel and Ian Fenty
652    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
653      update exp. cpl_aim+ocn output.
654    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
655      Needed for high-res. runs with large global files
656      to be able to limit tapelev size
657    o Changed some tests for adjoint:
658      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
659      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
660      * global_ocean.90x40x15/ back to default 3-level checkpointing
661    o Modifications to enable scripted COMMON to MODULE conversion
662      * verification/OpenAD/code/ has necessary scripts and description;
663      * converts, compiles and runs successfully;
664    
665    checkpoint57p_post
666    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
667    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
668      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
669    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
670    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
671      (was already the case for dissipation with mom_vecinv,
672       and also the case for grad.PhiHyd when staggered-timeStep)
673      This will allow to put dissipation out-off the AB time-stepping.
674     Unfortunately, affects truncation error. Update output of exp. that "fails"
675      (cg2d matching number) and leave the others for later: front_relax(10),
676      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
677      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
678    
679    checkpoint57o_post
680    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
681      (2) its ready to be documented during the 20050801 DocFest
682    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
683      for ideal_2D_oce and lab_sea on linux_ia32_g77
684    o set to #undef CTRL_SET_OLD_MAXCVARS_30
685      in global1x1_tot/code_seaice_adj to access indices 32, 33
686      (worth another tag)
687    
688    checkpoint57n_post
689    o adding precip control xx_precip 32
690    o adding swflux control xx_swflux 33
691    o Replacing 10 forcing penalty cost routines by 1 generic.
692    o Implementing partitioning in time-mean and variable adjustment
693      for atmos. state.
694    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
695    o in natl_box_adjoint:
696      * updated exp 1 to 10
697        (but does not have time-mean vs. variable split results yet)
698    o updated global1x1/*_seaice_adj/
699      to incorporate latest changes
700    o enable useSingleCpuIO for mdsio vector routines
701      (applies in particular to tapelev I/O)
702    o removed inefficient K-loop in all active_file*control*.F
703    
704    checkpoint57m_post
705    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
706      and advect_cs (use EXCH-2 and standard cs-32 grid files).
707    o pkg/exch2: filling of face-corner halo regions is optional
708      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
709    
710    checkpoint57l_post
711     tag before updating tutorials (pre-release-2)
712    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
713       for output and interpolation of input fields onto model grid)
714    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
715       Affects results of exp. rotating_tank ; update output.txt.
716    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
717          and taking the square quantity and/or using a fraction-weight field.
718    o fix aim_diagnostics_init.F mate numbers.
719    o add mnc output capability to diagnostics/diagstat and update
720      our cvsignore files for the ACSII output generated
721    
722    checkpoint57k_post
723    o lab_sea now uses diagnostics package and provides a suite of
724      new EXF diagnostics output.
725    
726    checkpoint57j_post
727    o exf
728      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
729        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
730        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
731      * extended diagnostics output
732        - now includes all EXF variables
733        - hs, hl moved to common block
734        - separate S/R for diagnostics, called after ctrl vector is added
735        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
736        - EXFqnet contains true Qnet (i.e. includes qsw)
737      * updated verif. lab_sea, global_with_exf
738      * Rearranging hflux (exf_mapfields -> exf_getforcing)
739        to ensure that diagnostics sees a true EXFqnet
740    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
741    o diagnostics pkg: change pointers so that 1 diagnostic can be used
742      several times with different frequencies.
743    o mnc-ify the thsice package as requested by Daniel Enderton
744      - the monitor--MNC output needs work
745      - many attributes need to be added (most are currently blank)
746    o mnc-ify theaim_v23 package as requested by Daniel Enderton
747      - many attributes need to be added (most are currently blank)
748    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
749    o add Sadourny like discretization to the 4th.O vorticity advection scheme
750    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
751      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
752         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
753    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
754     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
755    
756    checkpoint57i_post
757    o Diagnostics package was changed: diagnostic allocation is now deactivated
758      by setting an empty file name in the namelist (used to be by setting 0 frequency)
759    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
760      add 1rst Order upwind vertical Shear.
761    o add a quick fix for A/B checkpointing in OFFLINE mode
762    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
763      end-run around the C/Fortran linking horror in eesup/src/timers.F
764    o added pkg/runclock: allows user to terminate run based on wall clock
765    o added non-hydrostatic scaling parameter: nh_am2
766    o pkg/my82: futile attempt to make results compiler-independent by adding
767      some "_d 0", etc. no effect.
768    o for mnc output, fill the 'T' coordinate var with myTime and create a
769      separate 'iter' variable for iteration count
770    o pkg/diagnostics:
771      add new capability: output of Global/Regional & per-level statistics ;
772      tested against monitor output (including land & thSIce) on various exp.
773    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
774    
775    checkpoint57h_done
776      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
777      data.diagnostics, data.gchem, data.ptracers) is done.
778    
779    o pkg/diagnostics: prepare for Global/Regional statistics.
780      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
781    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
782      and rename it: DIFFERENT_MULTIPLE
783    
784    checkpoint57h_post
785    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
786    o pkg/diagnostics: change output frequency, now in seconds (instead
787      of Nb of iterations). This requires to change data.diagnostics.
788    checkpoint57h_pre
789    
790    o in mnc, let the user create the output dir if both mnc_outdir_date
791      and mnc_outdir_num are false
792    o add fflags() to pkg/diagnostics which allows one to specify, on a
793      per-file basis, the file precision [default behavior is unchanged]
794    o added diagnostics to pkg/kpp, including computation of mixed layer
795      depth based on a temperature/density criterion
796    o updated verification/natl_box to test the new pkg/kpp diagnostics
797    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
798    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
799    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
800      not mnc -- this mistake was found by JMC and is now corrected
801    
802    checkpoint57g_post
803    o add Adams-Bashforth 3rd Order time stepping:
804      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
805      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
806    checkpoint57g_pre
807    
808    o make lambda[Theta,Salt]ClimRelax spatially varying
809      (default remains spatially uniform constant based on tau)
810    o added new control variables
811      * init. uVel, vVel, etanN
812      * lambda[Theta,Salt]ClimRelax
813    o separate masks used for ctrl_pack/unpack 'from write_grid' output
814      (suggested by G. Forget)
815    
816    checkpoint57f_post
817    o add parameter "baseTime" = model base time = time at iteration zero
818      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
819      account for baseTime shift
820    o move Coriolis arrays from PARAMS.h to GRID.h
821    checkpoint57f_pre
822    
823    o mnc-ifying the seaice package
824    o introduced an alternative length scale calculation for use in the limiting
825      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
826    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
827    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
828      as well as grad(vort3).  Made it compatible with both approximate form
829      for the cubed sphere and full form of these gradients.  Added flag
830      useFullLeith to select between approximate and full form.  
831    o add "d0" in getcon.F to reduce differences between compilers/platforms
832      update output.txt of exp. fizhi-gridalt-hs
833    o change port_rand funtion to allow to set the seed.
834    o fix obscure MNC bug involving conversion between reals and integers
835      - it caused no problems with certain (eg. gcc, ifc) compilers but the
836        new version is now more standards-compliant
837    o adjoint-related modifications
838      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
839      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
840      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
841    
842    checkpoint57e_post
843    o Adding eddy stress controls a la Ferreira et al.
844    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
845    
846    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
847      update output.txt of exp. fizhi-gridalt-hs
848    o add more "Z" dimensions and associated coordinate vars to MNC
849    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
850    o parameter calendarDumps: when set, approximate months (30-31 days) and years
851      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
852      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
853      months and years.  Requires pkg/cal.
854    o diagnostics: add pickup functionality
855      - off by default for backwards compatibility
856      - current version only uses MDSIO -- MNC will be added
857    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
858    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
859    
860    checkpoint57d_post
861    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
862    o modify verification/ideal_2D_oce so that it tests the creation of mnc
863      output from the diagnostics package
864    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
865    o make genmake2 more portable by using ".$FS" instead of ".f" for more
866      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
867    o add coordinate variables to the MNC output from the diagnostics package
868    o change MNC-flags default value: true when useMNC=TRUE
869    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
870      the ability (off by default) to read the grid information using MNC
871    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
872    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
873    o do snap-shot diagnostics at the middle of the time-interval (instead of
874      at the end).
875    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
876      new test for AIM with thSIce + slab-ocean
877    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
878    o move state variable diagnostics to the beginning of the time step ;
879      (note: still needs some work specially for snap-shot diagnostics)
880      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
881    
882    checkpoint57c_post
883    o Change testing option (-ieee) to get closer agreement between g77 & ifort
884    o generate new output.txt files on faulks with g77 & the new -ieee option
885    checkpoint57c_pre
886    
887    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
888      update output.txt of exp. global_ocean.90x40x15
889    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
890      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
891    o add saltFlux(+File) forcing capability with periodicExternalForcing
892    o allow to use pkg diagnostics for GM-Redi & ThSIce output
893    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
894    o improvements for the MNC output from DIAGNOSTICS:
895      - correct handling of the unlimitied dimension
896      - all dims now have associated coordinate variables
897      - variables located at U, V, and Corner ("Z") points are now written
898        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
899        *all* data points are output
900    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
901    o added pkg/seaice/seaice_monitor.F
902    o mdsio_readfield.F can now read files visible only to master MPI process.
903    o pkg/seaice: some test code for ice-modified ocean stress
904    o exf_getffields interpolation defaults to bilinear for all scalar forcing
905      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
906      spurious negative numbers for precipitation and humidity.  Will cause
907      some small numerical differences for integrations using pkg/exf/exf_interp.F.
908    o pkg/ctrl/
909      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
910        May be enabled via doPackDiag
911      *  introduce z-scaling of
912         + gradient (doZscalePack) and
913         + control (doZscaleUnpack)
914    o pkg/mdsio/
915      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
916      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
917    
918    checkpoint57b_post
919    o simplify options in diagnostics_fill arguments (remove weird combinations)
920    o fix MNC coordinate variables so that they now contain per-face index
921      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
922      general, EXCH2 grids are only aligned to a "local" coordinate system
923    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
924    o Implement instantaneous output within pkg diagnostics:
925      setting a negative frequency in data.diagnostics produces
926     "snap-shot" output (as opposed to time-average if freq > 0)
927    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
928      NOTE: change ptracer diagnostics name: use 2 characters to work with
929            more than 9 tracers. Add also diagnostics of advect & diffus flux.
930    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
931      becomes the coordinate variable for the 'T' dimension
932    o add CF-style coordinate variables to MNC
933      - just a first cut:  numbers are meaningless on the cubesphere and
934        missing along the T axis but otherwise it works!
935    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
936    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
937    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
938      this is based directly on what the model compute, so that the content of
939      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
940    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
941    o clean up build options files for SunOS, in particular
942      - remove -traditional from xmakedepend
943      - change -xarch=v9 to -xarch=native for f77
944      - restore use of make (not gmake)
945      - add CC=gcc if using g77
946    o changes per discussion of AM, JMC, & EH3 today:
947      - move redundant "grid" variables out of "state" -- in preparation of
948        creating proper CF-style coordinate variables and in recognition
949        that any/all grid variables can be easily copied (eg. w/NCO) from
950        the grid files into any of the other NetCDF files
951      - *always* output grid variables with MDSIO (this will eventually be
952        changed)
953      - output MNC grid file if useMNC is true
954    o every instance of _END_MASTER() has been found and replaced with
955      _END_MASTER( myThid ) in order to satisfy certain picky Sun
956      preprocessors
957    o re-arrange diagnostics pkg initialisation:
958     - allow each package to extend the available diagnostics list
959     - add some checking and fix small problems (multi-threaded, ...)
960     - new S/R diagnostics_fill (replace fill_diagnostics):
961       look through the short list of active diag. (instead of the long list)
962       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
963    
964    checkpoint57a_post
965    o this set of changes restores TAMC compatibility
966      tested for global_ocean.90x40x15 adjoint on trough
967      (what a pain)
968    
969    checkpoint57a_pre
970    o some modifs in tools/build_options for sunos
971    o call ctrl_pack for ctrl at end for optimcycle=0
972    
973    checkpoint57
974    o add horizontal bi-harmonic viscosity for vertical velocity
975      - new parameter viscA4W (defaults to viscA4)
976      - affects only non-hydrostatic code
977      - to be done: no-slip lateral boundary conditions
978    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
979    o implement Implicit Vertical advection for pTracers
980    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
981      (implemented also for implicit vertical diffusion & advection)
982    o OBCS: extend application of tracer open boundary conditions
983      to a strip beyond the boundary of width Olx/Oly
984    o add call monitor to TAF set of required calls (flow directives)
985      and include in natl_box_adjoint
986    o untangle a few ifdefs related to cost, ctrl, autodiff
987      untangel a few ALLOW_ECCO_OPTIMIZATION
988    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
989      (theta2, salt2 in ecco_cost_weights)
990    
991    checkpoint56c_post
992    o OBCS as control variables
993      - update ctrl_ad_diff.list, obcs_ad_diff.list
994      - remove balance of obcs controls from default
995      - fix index bug nobcs in ctrl_init
996      - fix dummy fields filen in ctrl_pack
997      - add dummy weights for obcs
998    o lsopt: comment out fort.94 output
999    o optim:
1000      - remove unnecessary header files
1001      - adjusted namelists
1002      - add xerbla.F to Makefile
1003    o exf:
1004      - multiple modifications of exf_check_range
1005      - unit change in exf_init_runoff from [m/year] to [m/s]
1006    o mdsio:
1007      - i/o-vector change debugLevel from debLevA to debLevB
1008    
1009    checkpoint56b_post
1010    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1011      is called from DO_THE_MODEL_IO
1012      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1013      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1014      - clean up PTRACERS_WRITE_TIMEAVE a little
1015    o add another verification experiment that tests both the cfc-pkg and
1016      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1017      reactive tendencies treated inline with regular timestepping
1018    o testreport previously did a lousy job of comparing small numbers, so
1019      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1020      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1021      testreport.
1022    o ptracers_monitor: bug fix for MPI
1023    
1024    checkpoint56a_post
1025    o GCHEM: finish reorganizating the package
1026      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1027        (introduces another 3D-array for each passive tracer, but only if
1028        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1029        gchemTendency is not needed because the timestep is done separately)
1030      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1031      - GCHEM is now---more or less cleanly---separate from PTRACERS
1032      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1033        so clear to me how that should be done in a general way.
1034    o CFC: improve formatting of output in CFC_ATMOS
1035    o PTRACERS:
1036      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1037        that ALL experiments with ptracers enable can be checked. This makes
1038        GCHEM_MONITOR obsolete.
1039      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1040        monitorFreq
1041      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1042    o add PTRACERS (PTR0[1-5]) to testreport output
1043    o exf_check_range:
1044      * default changed to .TRUE.
1045      * will check values for niter0 if debLevA, every timestep if debLevB
1046      * STOP in exf_check_range if 'out of range'
1047      * range chosen generous to allow for potential extema
1048      TBD: a version with stricter range
1049           permitted range would be runtime parameters
1050    o GMredi:
1051      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1052      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1053      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1054    o GCHEM:
1055      - move call to GCHEM_FORCING_SEP, so that it is now called before
1056        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1057      - introduced a useGCHEM runtime flag and applied it everywhere.
1058      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1059        this flag is now only visible within GCHEM-pkg routines.
1060      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1061        be replaced by a 3D array that is computed before thermodynamics; for
1062        this, the tracer ID iTracer had to be included into the parameter list
1063        of ptracers_forcing
1064      - set up forward_step to call gchem_forcing, that will replace
1065        gchem_forcing_int in ptracers_forcing
1066      - cleaning up
1067    o small cleaning of exch2: remove files that are also in eesupp/src
1068    
1069    checkpoint56
1070    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1071    o mnc: cleanup "full" files--fixes out-of-memory problem
1072    o ECCO-GODAE
1073      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1074      * fully merged and updated from SIO code
1075        windstress sign change affects
1076        - exf_inscal_[u/v]stress
1077        - sign of xx_tau[u/v] adjustments
1078        - signs in cost_scat
1079      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1080      * natl_box_adjoint updated and compressed
1081      * 2-level checkpoint switch added
1082        (tested in EXP. 1 of natl_box_adjoint)
1083      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1084    o SVD
1085      * first complete, non-hacked version for SVD calculations
1086      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1087        performed via direct access files admtlm_vector.it????
1088        (via ctrl_[un]pack)
1089      * optimcycle is used for ARPACK iteration counter
1090        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1091      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1092        and add linear transforms where necessary
1093      * controls are initial/final SST, SSS (can be extended; need to check
1094        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1095    o mdsio: filename info to both stderr, stdout
1096    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1097      from sign change
1098    
1099    checkpoint55j_post
1100    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1101      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1102    o add consistent build directories and .cvsignore files to verification
1103    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1104    o make all subroutines 30 or less characters in length for certain older
1105      compilers to work (a thorough search only turns up two routines in
1106      pkg/ptracers)
1107    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1108      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1109    
1110    checkpoint55i_post
1111    o change arrays for total vertical diffusivity (2.D if explicit,
1112      3.D if implicit) ; each ptracer uses its own background value.
1113    o added mnc/NetCDF output capability to ocn_compon_interf
1114      - added bits to verification/cpl_aim+ocn so that it can run on
1115        ITRDA and other clusters without the mpirun "-wd" option
1116    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1117      configuration
1118    o give MNC the ability to create additional files rather than
1119      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1120      - the default is just less than 2GB which is a practical limit
1121        on many systems
1122    o Compute the non-local term using either KPP vertical diffusivity (=default)
1123       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1124    
1125    checkpoint55h_post
1126    o add verification test "vermix"
1127    o remove all the *_ioinc flags and replace with the single global
1128      outputTypesInclusive flag
1129    o allow to set a vertical profile of vertical diffusivity for T & S
1130    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1131    o useMNC moved from data.mnc to data.pkg
1132    
1133    checkpoint55g_post
1134    o Renaming carbon AD experiments to comply with testreport conventions
1135    o Updating adjoint of Held-Suarez hs94.1x64x5
1136    o Fixing directives for non-ECCO forward_step, after ECCO directives
1137      have been fixed to avoid recomp. of do_oceanic_phys
1138      Works well for global_ocean.90x40x15,
1139      but recomp. issue remains for carbon
1140    o Updating adjoint output for natl_box_adjoint after
1141      pkg/ecco has been modified (see taga c55d_post)
1142    
1143    checkpoint55f_post
1144    o rename to timeave_init_fixed
1145    
1146    checkpoint55e_post
1147    o some delicate re-shuffle of store directives to avoid one
1148      extra call of do_oceanic_physics
1149      affects ecco_the_main_loop.F, do_oceanic_physics.F
1150      checkpoint_lev1_directives.h
1151    o NB: this may break global_ocean adjoint temporarily,
1152      but it is clear how to fix it. Will do later, need this now.
1153    
1154    checkpoint55d_post
1155    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1156    o ecco_cost_weights is modified to 1x1 runs
1157    o modifs to allow observations to be read in as
1158      single file or yearly files
1159    o enable to read exf forcing fields as either
1160      single file or yearly files (flag useExfYearlyFields)
1161    checkpoint55d_pre
1162    
1163    o switch between 2-level and 3-level checkpointing
1164    o add ability of MNC to write local and "partial" (eg. 2D slices where
1165      the full 3D field is never actually stored) arrays to NetCDF files
1166      with the correct (that is, the complete multi-dimensional) set of
1167      array indicies
1168      - used in mom_vecinv() to write the diagFreq output
1169      - tested (demonstrated) in verification/aim.5l_cs
1170    o further mnc-ification
1171      - add verification/lab_sea to the list with mnc setups
1172      - fix undefined mnc v-names in cd_code
1173      - add kpp to mnc output (both snapshot and timeave)
1174    o non-hydrostatic code
1175      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1176        in calc_gw.F
1177      - defaults to viscAh
1178      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1179        friction or Leith) in non-hydrostatic mode, as long as there is
1180        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1181    o pkg/cost
1182      extend simple cost functions to treat time mean quantities
1183      (T,U,V) via cost_accumulate_state from cost_tile
1184    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1185        be 2 times larger than the minimum size the advection scheme requires.
1186        now get a perfect conservation of salt in advect_cs test-exp (updated)
1187    o GGL90 (Gaspar's TKE mixed layer)
1188      - add horizontal diffusion of TKE, requires exchanges in
1189        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1190        default. In OPA there is no horizontal diffusion of TKE but the
1191        mixing coefficients are computed from a horizontal average of TKE of
1192        6 points or so. I think that diffusion has a little more physical
1193        justification.
1194      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1195        was in vain)
1196      - mask tke-variable in ggl90_init
1197    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1198    o fix biharmonic diffusion on CS-grid.
1199    o more obcs stuff
1200      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1201        for reading boundary values. This routine is called from
1202        obcs_prescribe_read
1203      - updated obcs_check
1204      - changed sponge layer relaxation parameter units for days to seconds
1205      - turned off sponge layer by default
1206      - changed argument list of OBCS_CALC to myTime+deltaTclock
1207      - fixed about 35 bugs in obcs_external_fields_load
1208    
1209    checkpoint55c_post
1210    o obcs stuff
1211      - new runtime flags useOBCSprescribe, useOBCSbalance
1212      - re-arranged obcs_calc
1213      - moved exf_getobcs to obcs_prescibe_read
1214        obcs_prescibe_read is called after ORLANSKI stuff
1215        and independent of it (executable can contain all).
1216      - updated obcs_check
1217      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1218        These may be necessary only if tangential velocities are
1219        prescribed at OB, not sure, needs testing.
1220    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1221      which simplifies the calls and passes the ifc check-bounds test
1222    
1223    checkpoint55b_post
1224    o add a 2D scalar, Z location, exchange_2 routine.
1225    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1226      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1227      affects advect_cs results (for the wrong reason): update output.txt
1228    o use a more standard discretization for biharmonic viscosity ;
1229     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1230      affects results of dome set-up: update output.txt
1231    o fix gad_advection.F (CubedSphere part), back to version 1.23
1232    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1233    
1234    checkpoint55a_post
1235    o merged code to
1236      * prescribe/read time-dependent open boundaries
1237        (works in conjunction with exf, cal)
1238      * sponge layer code for open boundaries
1239      * each boundary N/S/E/W now has its own CPP option
1240        (healthy for the adjoint)
1241    
1242    checkpoint55
1243    o up-to-date adjoint of previous breaks
1244      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1245      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1246      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1247      - carbon: * remove tr1-related adjoint verification
1248                * add ptracer as control variable
1249    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1250      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1251    
1252    checkpoint54f_post
1253    o in verification/carbin/ remove experiment related to
1254      ALLOW_PASSIVE_TRACER (array tr1 etc)
1255      code_ad/ input_ad/ results_ad
1256    
1257    o add two new packages
1258      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1259        + subject to optimization (memory)
1260      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1261        + subject to reordering (many GOTOs in the original code)
1262        + so far opps is called for every (i,j) point, and then operates in
1263          the vertical; one may want to reorder the scheme in order operate in
1264          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1265          fields)
1266    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1267      - all verification tests compile and run with linux_ia32_g77
1268      - defaults are compatible with current input files--nothing
1269        should change if you were not previously using MNC
1270      - MNC output has been added in numerous places (eg. timeave)
1271        but there are still a few writes not yet do-able with MNC
1272        (this is in progress)
1273      - flags now allow for either/or/both use of MDSIO and MNC and
1274        documentation will soon follow
1275      - numerous small formatting cleanups for ProTeX
1276    o add version info (via BUILD_INFO.h) to MNC and stdout
1277    
1278    checkpoint54e_post
1279    o add two new packages
1280      - pp81 (Packanowski and Philander, 1981), Richardson number and
1281        stratification dependent mixing
1282      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1283      - these scheme operate in a similar manner as KPP (without ghat, of
1284        course), however there is only one diffusivity that is used for both
1285        temperature and salinity (and passive tracers)ç
1286    o add offline package
1287    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1288      provided by Stephanie Dutkiewicz
1289    o genmake2: add ability to search for C compilers and cleanup test output
1290      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1291    
1292    checkpoint54d_post
1293    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1294    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1295      leading to additional shift by 5 days each year of integration
1296       (i.e. leading to considerable offset over the years)
1297    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1298    o start with no AB and no initial filtering (staggerTimeStep):
1299      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1300    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1301      (external loading & cpl import/export stay in forward_step.F)
1302    o update coupling interface to work with new staggerTimeStep
1303    o change MDSIO ptracers_pickup.
1304    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1305    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1306    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1307    
1308    checkpoint54c_post
1309    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1310      this affects (truncation error) output.txt of test-exp:
1311       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1312    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1313    o change Qnet to always be the net heat flux, (+upward).
1314      affects (truncation error) output of natl_box exp.: updated
1315    o define the max number of passive tracers in PTRACERS_SIZE.h
1316    o start to test mnc routinely in exp0
1317    o add sea-ice loading (sIceLoad) as a new forcing field.
1318    
1319    checkpoint54b_post
1320    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1321       impressive on Altix and Opteron systems)
1322    o diagnostics can now write NetCDF files through the mnc package
1323    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1324    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1325    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1326      affects (truncation error) output of lab_sea & natl_box exp.: updated
1327    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1328    
1329    checkpoint54a_post
1330    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1331    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1332    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1333    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1334      + internal_wave (shift in writing cg2d_ini_res)
1335    checkpoint54a_pre
1336    
1337    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1338      - modified verification/lab_sea and natl_box_adjoint accordingly
1339    
1340    checkpoint54
1341    checkpoint53g_post
1342    o prepare splitting of thermodynamics: store convect.counter in common block
1343    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1344      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1345    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1346    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1347    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1348    o restore adjointability
1349    
1350    checkpoint53f_post
1351    o modifications that affect AIM experiment results (update output.txt):
1352      - no advection of S at top interface Nr (pkg/generic_advdiff)
1353      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1354    o AIM pkg:
1355      - include stability function into surf.Flux derivative relative to Tsurf
1356      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1357    
1358    checkpoint53e_post
1359    o merged cylindrical coord configuration
1360    o added rotating_tank experiment
1361    checkpoint53e_pre
1362    
1363    checkpoint53d_post
1364    o faulks upgraded: re-generate output.txt that have changed:
1365       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1366    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1367    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1368    o added Sadourny discretization of Coriolis
1369      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1370      - re-enabled use of omega3 (useAbsVorticity)
1371    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1372      vector-invariant equations
1373      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1374    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1375      hopefully without new bugs
1376      - still to do: biharmonic friction for non-hydrostatic w
1377    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1378    o regenerated output for global_ocean_ebm (using -ieee)
1379    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1380      of mom_common/
1381      - simple re-arrangement of instructions within computing loop
1382    checkpoint53d_pre
1383    
1384    checkpoint53c_post
1385    o new version of coupler for AIM+thSIce and Ocean models
1386     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1387     - land: change Evaporation of snow
1388     - aim with thSIce: fix bug in snow-precip.
1389    o changes to calc_gw.F
1390     - bug fix for w^2 term near the bottom boundary
1391     - (hopefully) improve the lateral slip boundary condtions for use with
1392        partial/looped cells
1393      - because the bug fix changes two verification experiments anyway (exp5
1394        and plume on slope), change the lateral boundary condition from half slip
1395        to the value of no_slip_sides
1396    o ebm package wasnt quite up to the parallel task. Fixed that.
1397    o Adjoint of EBM package + verification
1398      * TLM OK
1399      * ADM not sufficient accuracy yet (needs further testing)
1400    
1401    checkpoint53b_post
1402    o Commiting new energy balance model to repository
1403      * package is pkg/ebm
1404      * verif. is verification/global_ocean_ebm
1405      * references are in ebm_driver.F
1406    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1407    C        Global thermohaline circulation. Part I:
1408    C        Sensitivity to atmospheric moisture transport.
1409    C        J. Climate 12(1), 71-82
1410    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1411    C        Global thermohaline circulation. Part II:
1412    C        Sensitivity with interactive transport.
1413    C        J. Climate 12(1), 83-91
1414    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1415    C        Destabilization of the thermohaline circulation
1416    C        by atmospheric eddy transports.
1417    C        J. Climate 7(12), 1870-1882
1418    o Will need long integration testing.
1419    checkpoint53b_pre
1420    
1421    o created pkg/mom_common in preparation for variable viscosity code
1422    o renamed and split ini_mnc_io
1423    o pkg/land: only liquid water can diffuse or run-off
1424    o AIM using land: soil wetness availability account for snow
1425    o added printMapIncludesZeros to EEPARMS namelist
1426    
1427    checkpoint53a_post
1428    o restore TAMC compatiility for exf_constants.h
1429      (no usage of _d in .h)
1430    o Additional storing in KPP in an attempt to fix
1431      TAMC problem with adjoint of KPP code.
1432      (no success...)
1433      Identical code works fine with TAF.
1434    o Fixed verification/natl_box_adjoint experiments.
1435      Initial conditions for Experiments 4 and 5 are now
1436      set to "SEAICE_initialHEFF=0", which is more reasonable,
1437      and hence gives results closer to that of Experiment 2.
1438      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1439    
1440    checkpoint53
1441    o stable checkpoint with up to date adjoint
1442      TLM tests only run for 1st grdchk at the moment. Its unclear if
1443      this is a code problem or a problem with resetting code for g_
1444      variables that is being autogenerated wrong.
1445      Otherwise:
1446       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1447       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1448         are both still in chaos following their security messes.
1449    
1450    checkpoint52n_post
1451    o various build (mostly genmake2) changes including:
1452      - ability to build/run more easily within Cygwin and MacOS X
1453      - more complicated Makefiles with a stronger dependence on Gnu Make
1454    o pkg/seaice modifications
1455      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1456        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1457        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1458      - changed proxy for geostrophic velocity and updated
1459        verification/lab_sea/results/* accordingly
1460      - removed ADI dynamic solver from pkg/seaice
1461      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1462        they caused a segmentation fault under certain circumstances
1463      - removed unused field WATR
1464    o bug fix in exf-package:
1465      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1466         now reflect that.
1467    o small fixes in the cal-package:
1468      - set reference date to first of January for the 'model'-calendar
1469      - failing of cal_CheckDate in cal_FullDate now actually results in a
1470        warning
1471    o small modifications in exf-package to increase flexibility:
1472      - change climtempfreeze from a constant to a runtime parameter that
1473        is specified in data.exf_clim (default = -1.9)
1474      - introduce runtime parameter windstressmax (default = 2.0) that is
1475        specified in data.exf
1476    o fix in pkg/thsice:
1477      - update Evap (Tsf changes) to be consistent with Latent heat flux
1478      - maintain snow precipitation unchanged (even if Tsf >=0).
1479     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1480    
1481    checkpoint52m_post
1482    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1483      this does not change any of the results, because myIter=0 in swfrac always
1484      lead to jwtype=2 (the default anyway), but the call makes little sense
1485      as a default
1486    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1487    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1488      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1489    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1490    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1491    o extending useSingleCpuIO option to work with new exch2 I/O format
1492      - old-style, missing-tile I/O is still accessible by defining CPP
1493        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1494    o monitor package can write to NetCDF files and/or STDOUT
1495    o fix re-definition bug in MNC_GRID_INIT_ALL()
1496    o doc/api_reference added
1497      - a framework for building an API Reference Manual using all
1498        the "protex" comments embedded in the code
1499      - see pkg/generic_advdiff, pkg/mnc for examples
1500    o MNC:
1501      - make myThid the last argument for all subroutines
1502      - new default for the grid files: NO halos
1503      - add useMNC and other run-time flags
1504      - separate per-file-group handling of the unlimited dimension
1505      - early initialization of MNC w/ flags read at the eeboot stage
1506        and lookup tables set in initialize_fixed
1507      - write all MNC output to a freshly-created directory
1508    o thermodynamics sea-ice (thsice) is now tested with testreport.
1509    o test exp. advect_cs: use the standard cs32 grid ; update output.
1510    o Added functionality to grdchk:
1511      pick global i,j,k position (or nearest wet) where to perform check.
1512    
1513    checkpoint52l_post
1514    o new land formulation:
1515      a) use ground enthalpy as prognostic variable to ensure exact
1516         energy conservation.
1517      b) account for water temperature and for latent heat of freezing
1518         in all processes (rain, run-off, ground storage)
1519      c) compute surface and ground temperature implicitly.
1520    o aim_v23 modification for new land model:
1521      a) Treat separately land / ocean / sea-ice surface fluxes
1522         to allow implicit computation of land & sea-ice surface temp.
1523      b) add snow precipitation.
1524    checkpoint52l_pre
1525    
1526    o fix problem (when 1 tile is empty) in min/max monitor.
1527    o fix bug in timeAve (u,vZetatave in common block)
1528    o no restoring terms under ice for pkg/seaice
1529    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1530    o bug fix for pkg/seaice pickups
1531    o change MNC call locations and add coordinate attributes
1532    o mask vorticity at the corner ; affects global_ocean.cs output
1533    o fix ini_curvilinear_grid ; test CS experiments with mpi
1534    o aim.5l_cs: modify sea-ice fraction input file ; update output
1535    o exf: Adding simple range check routine for exf fields after read
1536    
1537    checkpoint52k_post
1538    o removed top-level directory "diags"
1539      - we migrated these functions to pkg/timeave a long time ago
1540    o fixed bug introduced in pkg/monitor
1541    o accuracy ctrlprec = 32 insuffient for gradient checks using
1542      averaged fields (I/O via cost_averages)
1543      -> use ctrl.h in active_file*.F to control I/O precision.
1544    o paramter list of CALL ADTHE_MAIN_LOOP
1545    o added initial do_the_model_io to ecco
1546    o set all ...Freq to zero after cost_final
1547      taveFreq, dumpFreq, pChkptFreq
1548    o MAIN and ECCO differentiability restored
1549    
1550    checkpoint52j_post
1551    o fix nchklev in tamc.h for global_ocean...
1552    o Bringing flow and store directives up-to-date
1553    o Really weird thing!
1554      call do_the_model_io from the_main_loop with parameters
1555      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1556      TAF places a faulty re-call of initialise_varia
1557      after cost_final call which should not be there!
1558    checkpoint52j_pre
1559    
1560    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1561      error messages
1562    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1563    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1564      debug output
1565    o modfied mdsio_writefield.F to handle non-global files under exch2
1566    o update AIM Cubed-Sphere exp (aim.5l_cs):
1567      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1568    o update AIM Equatorial Channel exp:
1569      use standard aim_v23 pkg and change the SST fields to be more realistic.
1570    o globalFile now works with exch2
1571    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1572      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1573    o limit timeave output for hi-res integrations
1574    
1575    checkpoint52i_post
1576    o removed CPP_EEOPTIONS.h from verification/*/code
1577    o updated the tiling for global_ocean_pressure
1578    checkpoint52i_pre
1579    
1580    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1581      the old pkg/aim).
1582    
1583    checkpoint52h_pre
1584    o shortened offending lines in exch2_send_rx?.template
1585    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1586    o genmake2: add build & execute test for NetCDF code
1587    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1588      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1589    o added useSingleCPUIO flag to monitor.F and mon_out.F
1590    o added temporary hack for sea-ice dynamics on the cube:
1591      metric terms are ignored and it is assumed that
1592      there is no sea-ice on cube faces 1, 2, 4, and 5.
1593    
1594    checkpoint52f_post
1595    o added exch2 cube routines to pkg/exch2
1596    o modified hs94.cs-32x32x5 to use it
1597    o added new grid files to hs94.cs-32x32x5
1598    checkpoint52f_pre
1599    
1600    checkpoint52e_post
1601    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1602      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1603    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1604      to work with implicit vertical advection and AB ;
1605    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1606    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1607     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1608    checkpoint52e_pre
1609    
1610    o fix bug in impldiff when Nr=1 or Nr=2.
1611    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1612    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1613    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1614      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1615    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1616    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1617    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1618    
1619  checkpoint52d_post  checkpoint52d_post
1620    o re-tiled many expts to allow comparison in multi-processor mode
1621      - updated output accordingly
1622      - changed hs94.128x64x5 to use intial T from file rather than use the
1623        random number generator
1624    o add infrastructure in model routines for fizhi and gridalt packages
1625  o change global_ocean.cs32x15 because of Pb with GM on CS-grid.  o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1626  o changes to permit hi-res, cubed-sphere, configuration  o changes to permit hi-res, cubed-sphere, configuration
1627    - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F    - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F

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