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revision 1.275 by jmc, Thu Apr 8 00:25:10 2004 UTC revision 1.736 by heimbach, Sun Oct 22 01:26:36 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o Adding some pkg/diagnostics capability to pkg/seaice
8      (will certainly be subject to changes)
9    
10    checkpoint58q_post
11    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
12      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
13      high_res_cube configuration by 4% on Columbia.
14    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
15      add (in global_with_exf/code) a version of EXF_INTERP_READ without
16      dynamical allocation (seems to work in multi-threaded).
17    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
18      single CPU io) so that TAF does not have to see EESUPPORT.h
19    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
20    
21    checkpoint58p_post
22    o obcs: stop if obcs is used with useCDscheme = .true.
23    o shelfice:
24     - fix a sign error so that no slip at shelfice interface works
25     - remove stop for combination non-hydrostatic code and shelfice. That does
26       not mean, that the results are correct, but at least they are numerically
27       stable
28    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
29    o added adjoint exch routined for all exch*3d* routines
30      and updated flow directives
31    
32    checkpoint58o_post
33    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
34      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
35    o change controling S/R for writing pickup file (new S/R do_write_pickup)
36      and clean-up reading/writing of pickup files.
37    o fix local version of read/write pickup (NH part) in rotating_tank/code
38    o simplify EXCH interface:
39     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
40     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
41    o added the regrid package
42    o shelfice:
43     - add a simple boundary layer scheme to reduce noise
44     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
45    
46    checkpoint58n_post
47    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
48       local variable (not in common block).
49    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
50      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
51      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
52        to work with SingleCpuIO.
53    o add "_d 0" to real constant of pkg/cfc subroutines ;
54       update exp. cfc_exemple & tutorial_cfc_offline output files.
55    o multi-threading and IO:
56      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
57        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
58      - barrier before and after reading.
59      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
60      - avoid using MDS_WRITELOCAL for LAND pkg output.
61      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
62        common-block variables ; Allows multi-threading with master-thread IO.
63    o change default MAX_NO_THREADS from 32 to 4 ;
64      and stop cleanly when MAX_NO_THREADS is too small.
65    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
66    
67    checkpoint58m_post
68    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
69       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
70    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
71       keep global_ocean.90x40x15 (for AD testing) with former secondary test
72       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
73    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
74        add MITgcm_tutorials (= code + all the tutorials)
75    o ecco, option to compute cost for total ssh (mean+anom)
76    o consistent with addition of ptracer and ssh in pkg/profiles
77    o profiles: adding ptracer and ssh
78    o testreport: change multi-test output-file name
79      (from output.txt.{name} to output.{name}.txt)
80    o profiles: now ok for mutli-tiles case
81    o seaice: add 4 parameters for different advection schemes for area,
82      (effective) seaice thickness, enthalphy, and snow height. Their default
83      is the standard parameter SEAICEadvScheme
84    o calc_gw:
85     - add cosFacU in zonal viscous flux (harmonic.visc.).
86     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
87       of tutorial_plume_on_slope.
88    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
89    o calc_gw: true flux-form, account for horizontal grid spacing.
90      update rotating_tank results, but not plume_on_slope (affected at
91      truncation level, 11 digits).
92    
93    checkpoint58l_post
94    o calc_gw:
95     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
96     - remove side-drag for now (need to fix it); update plume_on_slope results.
97     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
98    o commit code to make SST/SSS weights spatially variable
99      (based on either variable in-situ or variable initial T/S weights)
100    o pkg/ecco:
101      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
102        now based on horizontally varying weights wthetaLev, wsaltLev
103      * cost_averagesflags now returns year indices in addition to day, month
104      * sflux balance is performed on annual basis
105        (sflxumm, sfluxmm2, bal_sfluxmm)
106      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
107        including separate counting and multipliers
108    o pkg/rbcs
109      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
110    
111    checkpoint58k_post
112    o testreport:
113     - always build in dir. "build" (if not there, mkdir build instead of building
114       & running in input)
115     - run in dir run (if it exists), in build otherwise.
116     - call prepare_run (if input/prepare_run exists)
117     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
118    o pkg/exf modifications to interpolation and rotation routines for more
119       reasonable treatment of North Pole singularity: for tracers North Pole
120       value is set to northernmost zonal-mean value, for zonal velocity it is
121       set to zero, and for meridional velocity it is set to northernmost value.
122    o pkg/exf/exf_check_range.F
123     - add tile index to diagnostics and move stop statement to the very
124       end of the routine.
125    o pkg/diagnostics: (diagnostics_main_init.F)
126      define title of isomorphic variables according to the current config.
127    o pkg/thsice with pkg/seaice dynamics:
128    - fix domain of computation (interior only, required for exf) and do exchanges
129    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
130    o towards a standard way of dealing with multi-threading in MONITOR
131      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
132    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
133       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
134    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
135    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
136    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
137       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
138    o tracer advection:
139     - clean-up and simplify calc_common_factors.F
140     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
141       advection subroutine (but still not used within DST advection S/R)
142    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
143    
144    checkpoint58j_post
145    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
146      from file (collects calls previously in FORWARD_STEP)
147    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
148    o adjoint store dir. adjusted accordingly
149    o genmake2
150      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
151    
152    checkpoint58i_post
153    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
154      on wind stress (SEAICEstressFactor defaults to 1.)
155    o Total number of Timers is finite (<=40): comment out 2 non-essential one
156      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
157    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
158      on CS-grid: no longer loosing mass.
159    o exf & curvilinear-grid: no longer modify longitude xC & xG.
160    o pkg/ggl90: fix sloppy output and fix a bug
161    o pkg/seaice: added SEAICEuseEVPpickup parameter
162      - Set to false in order to start EVP solver with
163        non-EVP pickup files when using SEAICEuseEVP
164      - fix sign error in diffusion in seaice_calc_rhs
165    
166    checkpoint58h_post
167    * Modifications for bottom topography control
168      o replace hFacC by _hFacC at various places
169      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
170      o add non-self-adjoint cg2d_nsa
171      o update autodiff support routines
172      o re-initialise hfac after ctrl_depth_ini
173      o works for 5x5 box, doesnt work for global_ocean.90x40x15
174    * Adding verification for 5x5 box (4-layer) bottom topography control
175    
176    checkpoint58g_post
177    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
178       used for mean seasonal cycle, mean diurnal cycle); add an example
179       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
180    o pkg/ggl90:
181      - add parameter (minimum surface kinetic energy)
182      - fix bug (avoiding division by zero)
183    o couple pkg/thsice to pkg/seaice:
184      - modify advection in seaice to accomodate new scalar fields to be advected
185      - only muliDimAdection scheme work with seaice/thsice
186      - mapping of thsice-variables to seaice-variables, back and forth
187      - does not break the verification experiments, but does not give the
188        desired results either
189    o pkg/seaice
190      - make (default) second order advection a bit less confusing?
191    
192    checkpoint58f_post
193    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
194      to pkg/seaice):
195      - new routines thsice_map_exf and thsice_get_exf provide the interface
196      - add an additional formal parameter to thsice_solve4temp
197    o pkg/exf:
198      - add new fields wspeed, snowprecip (to be able to couple to thsice)
199      - correct Stefan-Boltzmann constant
200      - new parameter for longwave surface emittance
201      - separate some stuff from exf_bulkformulae into new routines  
202        exf_radiation, exf_wind
203      - add new parameters and constants: longwave emissivity for ocean, ice
204        and snow, evaporation parameters over ice
205      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
206        either wind from stress or stress from wind
207    o pkg/thSIce:
208    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
209    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
210       and THSICE_CALC_THICKN
211    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
212    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
213      to make debugging easier.
214    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
215    o pkg/bulk_force:
216      - clean-up comments and parameters ;
217      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
218    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
219      generate new output for test-experiment: aim.5l_cs.thSI
220    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
221      testreport accordingly
222    
223    checkpoint58e_post
224    o SEAICE_CGRID adjoint done
225    o R_STAR adjoint implemented.
226      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
227      * need to sort out init. of h0facc, etc.
228    o Make pkg/profile fully independent of ecco,cost, etc. stuff
229      to be able to use it in pure forward.
230    
231    checkpoint58d_post
232    o upgrade simple test-experiment to tutorial example:
233     step.1: duplicate the experiment and (step.2) will remove the old copy.
234      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
235      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
236      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
237      tutorial_global_oce_biogeo    <- copy of dic_example
238      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
239      tutorial_plume_on_slope       <- copy of plume_on_slope
240      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
241      tutorial_global_oce_optim     <- empty for now (David ?)
242      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
243     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
244    o correct a sign problem in cost_scat.F
245    o obcs and ptracers: fix boundary conditions for advections schemes
246      with larger stencil
247    o thsice adjoint: start
248    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
249      completeness
250    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
251      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
252    o ptracers adjoint:
253      * avoid extensive recomputatations
254      * fix missing re-init. of gptr (missed by TAF)
255    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
256      me to turn off the excessive output to STDOUT that this package produces
257    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
258      and add those terms in Vector-Invariant formulation.
259    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
260      if the control period (xx_hfluxperiod etc) is 0
261    o in profiles pkg, clean routines and fix details
262    o in ecco pkg, reading ssh data:
263      fix problem in case the model does not start at iter0=0
264    o fix mnc-pickup/restart for ptracers
265    o new package prifiles:
266      code to compute profile-based cost by Gael Forget
267      (modifs in ecco, ctrl, autodiff)
268    o Benign bug fix in initialization (spotted by M. Mazloff) of
269      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
270    
271    checkpoint58c_post
272    o adjoint: finish NLFS adjoint and provide reference output in
273      verification/global_ocean.90x40x15/results_ad_nlfs
274    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
275      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
276      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
277      with SEAICE_CGRID defined.
278    o move calendarDumps from "data" to "data.cal" and clean-up the code
279      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
280    o add useEXF & useCAL flags (for now, set in hard-coded way)
281    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
282      (were missing in NH mode, and wrong in quasihydrostatic mode).
283      waiting for Chris updated version of calc_gw to add those CALLs.
284    o fix bug in quasihydrostatic S/R ;
285      add a test for this option: global_ocean.90x40x15.qshyd
286    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
287      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
288    o add on/off flag useOffLine for package OFFLINE
289    o seaice:
290      - modify advection so that it works also on the C-grid
291      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
292        problem in multi-tile runs with C-grid
293      - add flags for clipping ice velocities and/or masking solver forcing
294      - fix drag (ocean on ice) formulation and a bug that caused noise in the
295        C-grid solver
296      - added a few comments to seaice_diffusion.F
297      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
298        are now exclusive)
299      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
300        required re-ordering the code a little:
301       + make DAIRN global variable (defined in SEAICE)
302       + move computation of the viscosities eta and zeta into a new separate
303         routine (because I need to recompute them in seaice_ocean_stress.F)
304    
305    checkpoint58b_post
306    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
307      update output.txt of exp. aim.5l_cs.thSI
308    o various mnc cleanups and improvements:
309      + shrink lookup tables by factor of ~4
310      + better error reporting when running out of lookup space
311      + able to handle longer path/file names (up to 500 chars)
312    o adjoint:
313      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
314      - TBD: "hidden" mom_vecinv recomp. in dynamics
315    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
316     (allow to differentiate between forcing components using new integer flags:
317      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
318     and add new flag to put Dissipation tendency out of Adams-Bashforth.
319    o ecco
320      - enable trend removal from SSH anomaly obs.
321    o adjoint
322      - a fix for PmEpR when #undef EXACT_CONSERV
323      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
324      - try to fix "hidden" recomp. in forward_step for NLFS
325        (NLFS seems broken sometimes after I checked it in)
326    o seaice:
327     - add c-grid version of the dynamic solver:
328       + three new routines that are the c-grid substitute lsr, dynsolver
329         and ostres
330       + put a few fields that were local to dynsolver into global common
331         blocks, so that I can move the computation of stresses etc into
332         seaice_lsr (saves coding but may break the adjoint).
333     - replace more hardwired parameters by runtime parameters
334     - add ice masks that mask the rhs of the implicit solvers where there
335       is no ice (commented out in seaice_dynsolver, because i am not sure
336       if this works properly), eventually this should replace the clipping
337       of ice velocities in seaice_dynsolver to +/-40cm/s.
338    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
339      include it only where its needed
340    o move balancing of fluxes before the call of external_forcing_surf
341    o seaice:
342      - correct units of turning angles (now they are really in degrees)
343      - move computation of GWATX/Y out of main routine into dynsolver
344      - initialize GWATX/Y in seaice_init
345    o Apply mask on Fresh-Water flux (needed for SSH forcing).
346      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
347    o seaice: add runtime flags for turning angles (default to zero)
348    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
349      and trend from exf forcing and ctrl control adjustments
350    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
351      (since checkpoint57x_post)
352    o change the default rotation period to 86164.s = the Earth rotation
353    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
354      and based on a reference stratification. Tested within hs94.cs-32x32x5.
355    o seaice advection: add code for choosing between the default (2nd order
356      central differences) and multiDim advection schemes provided by
357      pkg/generic_advdiff
358    o seaice:
359      - removed all references to SEAICE_GRID.h fields from
360        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
361        (cubed-sphere configuration will change a little)
362      - grid computations in seaice_init are obsolete now.
363      - cleaned up code a little so that is easier to read (hopefully).
364      - added new (better?) discretizations of default advection and diffusion
365        (turn on with SEAICEuseFluxForm)
366      - replace 1 in 3d global fields by kSurface in growth.F
367      
368    checkpoint58a_post
369    o seaice:
370      - bug fix in advect.F
371    o shelfice:
372      - separate shelfice load anomaly from pload (breaks with time
373        dependent forcing), => introduce constant field shelficeLoadAnomaly.
374        Its default is 0., but it may be computed more cleverly from (unknown)
375        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
376        done offline. A good approximation of the pressure load anomaly is
377        necessary to avoid large initial adjustment processes underneath
378        deep-reaching shelfice.
379      - small fix in ISOMIP shelfice_thermodynamics
380      - add more sophisticated thermodynamics of Hellmer (1989), this is
381        now the default
382      - give a few constants more intuitive names
383    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
384      if bulk formulae are used in long integration (especially EmPmR). Turn
385      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
386      if balancePrintMean, the imbalance that is substracted is printed to
387      STDOUT.
388    o fix bug (typo) in obcs_apply_eta.F
389    o add a new package shelfice which enables us to model the circulation
390      underneath shelf-ice with draughts of hundreds of meters.
391     - works
392     - to do: + include improved thermodynamics
393              + check whether kSurfC (from model/inc/SURFACE.h) can be used
394                instead of new field kTopC
395              + can we use topoFile, Ro_surf and existing code in ini_depth.F
396                instead of new field R_shelfIce and new code in ini_depth.F
397                and ini_mask_etc.F?
398              + adjust vertical mixing schemes?
399    o seaice pkg:
400     - add a cpp-flag to include a simple formula for a salinity dependent
401       freezing point of sea water at the surface
402     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
403       meridional stresses are now different (and hopefully correct)
404    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
405       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
406       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
407    o pkg/diagnostics: add options and parameters for regional-statistics
408       diagnostics ; define regions by reading a region-mask from a file
409       (might add other options later)
410    o pkg/bulk_force:
411     - add option and parameters to use AIM surface-flux formulae.
412     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
413       others forcing fields (defined in PARM05, parameter file "data") are loaded
414       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
415     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
416     - use the right EXCH call for uwind,vwind (to work on CS-grid).
417     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
418       and parameters (note: calcWindStress replaces .NOT.readwindstress).
419     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
420    
421    checkpoint58
422    o add "--embed-source" option to genmake2 which, when the supporting
423      tools can be compiled (as determined by genmake2) will turn on the
424      embed_files package which then embeds the entire MITgcm source code
425      (*.[fFhc] + Makefile) used for the build within the executable
426      - requested by CNH but off by default
427      - adds a paltry <9MB to the mitgcmuv executable in most cases
428      - only writes the output when useEMBEDSRC in eedata is true
429    o clean up 3-dim. relaxation codes:
430      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
431      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
432      * Thanks to Tom Haine for testing!
433    
434    checkpoint57z_post
435    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
436      affects output (@ truncation level) of exp. plume_on_slope ; updated.
437    o fix the pickup behavior for obcs in combination with ptracers
438    o fix a bug in ptracers_external_fields_load
439    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
440      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
441    o transfered surface NH pressure to eta field (if exactConserv).
442    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
443         and update lab_sea output.txt file.
444    o completing 3-dim. relaxation code: additional term
445         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
446      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
447      * At compile time, in "EXF_OPTIONS.h" set
448          #define  ALLOW_CLIMTEMP_RELAXATION
449          #define  ALLOW_CLIMSALT_RELAXATION
450      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
451          tauThetaClimRelax3Dim = 15552000.0,
452          tauSaltClimRelax3Dim  = 15552000.0,
453      * 3 cases:
454          1) Use a constant-in-time 3-dim. field
455          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
456          3) Real-time relax. to time-evolving prescribed field
457    o Adding Laplacian-type smoothness constraint on
458      initial and boundary (forcing) controls (ic, bc)
459      * enable at compile-time via
460        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
461      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
462      * Absolute scale somewhat unclear so far
463      * no area weighting was included since no other cost term does so far
464    
465    checkpoint57y_post
466    First step for a NLFS adjoint
467    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
468    o new init. routines for calc_r_star, calc_surf_dr
469    o still need to deal with ini_masks_etc
470    o testreport seemed happy
471    checkpoint57y_pre
472    
473    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
474    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
475    o add new offset feature to offline pkg (plus minor cleanup)
476    o cfc fixes for final year of integration
477    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
478      be in GCHEM_OPTIONS).
479    
480    checkpoint57x_post
481    o fix testreport Pb in multiple test experiment.
482    o cleanup our namelist syntax in verification:
483      - make it more F95 standards compliant (some work still needed)
484      - allows the vast majority of our tests to work with gfortran
485    o Non-Hydrostatic:
486     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
487     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
488    o Allow to apply AB on T,S rather than on AB(gT,gS):
489     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
490     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
491       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
492     - need a "clever" read_pickup to restart from the other AB formulation
493    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
494    o remove some unused variables (reduces number of compiler warnings)
495    o adjoint
496      * Disable useVariableViscosity for adjoint for time being
497        (there are a number of extensive recomputations)
498      * Initialize certain variables needed for adjoint
499    
500    checkpoint57w_post
501    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
502                 fix the singleCpuIO RS version of MDSWRITEFIELD
503       and add a WARNING if using globalFiles=T with multi-processors.
504    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
505      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
506    o tracer advection scheme:
507      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
508       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
509       was not very convenient).
510      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
511       (further tests needed for the implicit DST & Flux-Limiter schemes).
512    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
513      and sRef for convenience, handy, when you want to initialize
514      ptracers in a large domain with a constant non-zero value. Also,
515      untangle ptracers_init.F a little.
516    
517    checkpoint57v_post
518    o change dome exp. to use variable viscosity in side-drag terms.
519    o remove all the files from the cfc_offline test since they are now
520      incorporated into tutorial_cfc_offline which has been producing
521      identical results for a few days of testing
522    o add new parameter: sideDragFactor to enable half-slip-side BC
523      and change side-drag S/R to use viscosity from mom_calc_visc
524      (can switch back by setting sideDragFactor=0.); affects results at
525      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
526       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
527    o vorticity & strain are now computed without masking, to account for
528      no-slip-side BC in variable viscosity calculation ; mask is applied
529      anyway later on, before computing advection/coriolis terms.
530    o modify exp4 to test new obcs support for reading from external files
531      and for passive tracers
532    o fix behavior of ptracers_monitor when monitor output is written to a
533      netcdf-file; still not independent of monitor.F (writes in the same
534      file).
535    o change default value of tRef (put a uniform, meaningful value for ocean
536      & atmos) and initialize sRef (was missing, as Martin mentioned).
537    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
538      to be proportional to enstrophy dissipation length.  Thus,
539       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
540      This is now consistent with Smagorinsky and with the manual.
541    
542    checkpoint57u_post
543    o OBCS and PTRACERS: add open boundary support for passive tracers
544      - either use homogenous (pseudo) v.Neumann conditions or prescribe
545        OB-values from file; this is not different from the way theta and salinity
546        are treated
547      - however, Orlanski-radiation conditions are not supported, and the model
548        will stop if you use pTracers and Orlanski at the same time.
549      - beefed up the rountine obcs_external_fields_load: now only those open
550        boundary values are overwritten with values from files for which there
551        are really files, otherwise the OB-fields remain untouched. This makes
552        it possible to use different OBs at different ends of the domain (as
553        with EXF)
554    o reduce number of exch calls in shap_filt (s2).
555    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
556      truncation level) 4/5 MLAdjust test results (11&12 digits match).
557    
558    checkpoint57t_post
559    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
560    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
561      same truncation, independent of the face number: affects affects several
562      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
563    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
564      note that biharmonic viscosity + no-slip was not tested in any experiment.
565    o fix bug in non-linear free-surf side-drag ; generate new output for
566      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
567    o make mnc honor the writeBinaryPrec flag for most kinds of output
568    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
569    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
570      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
571    o add brackets in multi-terms sum to get same truncation, independent of
572      the face number (manage to get exactly same value of gU,gV at the cs-edge)
573      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
574    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
575      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
576      a maximum grid-scale Reynolds number.  Also, changes all length calculations
577      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
578      Suggested values of viscosity parameters found in mom_calc_visc.
579      Many new viscosity diagnostics available.
580    
581    checkpoint57s_post
582    o Add clearing-house for viscosity calculations, mom_calc_visc and
583      correct numerous bugs in LeithD and Smagorinsky discretizations.  
584      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
585      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
586      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
587      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
588      The Strain-Tension form is now called with useStrainTensonVisc=.true.
589      ViscAhStrain and viscAhTension are now retired.
590    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
591    o In response to JMC's bug report, genmake2 now ignores any soft-links
592      that it finds in the *current* directory when searching for files.
593      Soft-links found in any other source directories will still work as
594      they did before.
595    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
596      a C routine to unlimit the stack size
597    o mnc-ify pkg/aim snapshot vars
598    o mnc-ify pkg/land as requested by Daniel
599    o various changes to mnc including:
600      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
601      - output can now be grouped so that all files within a group
602          change the ITER portion of their names in lock-step together
603      - can now read ("global") PER-FACE (in addition to PER-TILE) files
604          and works with both EXCH1 and EXCH2 (but needs more testing)
605      - writing works for all verification test cases w/ g77 on Linux
606    
607    checkpoint57r_post
608    o make MNC variable initialization happen earlier
609    o add diagnostics for (almost) each term of the momentum Eq.
610    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
611    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
612    o remove MINIMAL_TAVE_OUTPUT option ;
613      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
614    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
615      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
616    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
617    o add time-dependent SST, SSS control
618    o cost terms in ecco/ modularized (new cost_generic.F)
619    o cost_averages routines are modularized (new cost_averagesgeneric.F)
620    o new infrastructure for seaice model vs. obs misfits in seaice/
621      * driver from the_main_loop.F is seaice_cost_driver.F
622      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
623      * gradient check in Exp. 6a of natl_box_adjoint/
624    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
625      (see README file)
626    
627    checkpoint57q_post
628    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
629    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
630      - bug was reported by Jean-Michel and Ian Fenty
631    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
632      update exp. cpl_aim+ocn output.
633    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
634      Needed for high-res. runs with large global files
635      to be able to limit tapelev size
636    o Changed some tests for adjoint:
637      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
638      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
639      * global_ocean.90x40x15/ back to default 3-level checkpointing
640    o Modifications to enable scripted COMMON to MODULE conversion
641      * verification/OpenAD/code/ has necessary scripts and description;
642      * converts, compiles and runs successfully;
643    
644    checkpoint57p_post
645    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
646    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
647      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
648    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
649    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
650      (was already the case for dissipation with mom_vecinv,
651       and also the case for grad.PhiHyd when staggered-timeStep)
652      This will allow to put dissipation out-off the AB time-stepping.
653     Unfortunately, affects truncation error. Update output of exp. that "fails"
654      (cg2d matching number) and leave the others for later: front_relax(10),
655      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
656      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
657    
658    checkpoint57o_post
659    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
660      (2) its ready to be documented during the 20050801 DocFest
661    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
662      for ideal_2D_oce and lab_sea on linux_ia32_g77
663    o set to #undef CTRL_SET_OLD_MAXCVARS_30
664      in global1x1_tot/code_seaice_adj to access indices 32, 33
665      (worth another tag)
666    
667    checkpoint57n_post
668    o adding precip control xx_precip 32
669    o adding swflux control xx_swflux 33
670    o Replacing 10 forcing penalty cost routines by 1 generic.
671    o Implementing partitioning in time-mean and variable adjustment
672      for atmos. state.
673    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
674    o in natl_box_adjoint:
675      * updated exp 1 to 10
676        (but does not have time-mean vs. variable split results yet)
677    o updated global1x1/*_seaice_adj/
678      to incorporate latest changes
679    o enable useSingleCpuIO for mdsio vector routines
680      (applies in particular to tapelev I/O)
681    o removed inefficient K-loop in all active_file*control*.F
682    
683    checkpoint57m_post
684    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
685      and advect_cs (use EXCH-2 and standard cs-32 grid files).
686    o pkg/exch2: filling of face-corner halo regions is optional
687      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
688    
689    checkpoint57l_post
690     tag before updating tutorials (pre-release-2)
691    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
692       for output and interpolation of input fields onto model grid)
693    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
694       Affects results of exp. rotating_tank ; update output.txt.
695    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
696          and taking the square quantity and/or using a fraction-weight field.
697    o fix aim_diagnostics_init.F mate numbers.
698    o add mnc output capability to diagnostics/diagstat and update
699      our cvsignore files for the ACSII output generated
700    
701    checkpoint57k_post
702    o lab_sea now uses diagnostics package and provides a suite of
703      new EXF diagnostics output.
704    
705    checkpoint57j_post
706    o exf
707      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
708        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
709        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
710      * extended diagnostics output
711        - now includes all EXF variables
712        - hs, hl moved to common block
713        - separate S/R for diagnostics, called after ctrl vector is added
714        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
715        - EXFqnet contains true Qnet (i.e. includes qsw)
716      * updated verif. lab_sea, global_with_exf
717      * Rearranging hflux (exf_mapfields -> exf_getforcing)
718        to ensure that diagnostics sees a true EXFqnet
719    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
720    o diagnostics pkg: change pointers so that 1 diagnostic can be used
721      several times with different frequencies.
722    o mnc-ify the thsice package as requested by Daniel Enderton
723      - the monitor--MNC output needs work
724      - many attributes need to be added (most are currently blank)
725    o mnc-ify theaim_v23 package as requested by Daniel Enderton
726      - many attributes need to be added (most are currently blank)
727    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
728    o add Sadourny like discretization to the 4th.O vorticity advection scheme
729    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
730      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
731         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
732    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
733     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
734    
735    checkpoint57i_post
736    o Diagnostics package was changed: diagnostic allocation is now deactivated
737      by setting an empty file name in the namelist (used to be by setting 0 frequency)
738    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
739      add 1rst Order upwind vertical Shear.
740    o add a quick fix for A/B checkpointing in OFFLINE mode
741    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
742      end-run around the C/Fortran linking horror in eesup/src/timers.F
743    o added pkg/runclock: allows user to terminate run based on wall clock
744    o added non-hydrostatic scaling parameter: nh_am2
745    o pkg/my82: futile attempt to make results compiler-independent by adding
746      some "_d 0", etc. no effect.
747    o for mnc output, fill the 'T' coordinate var with myTime and create a
748      separate 'iter' variable for iteration count
749    o pkg/diagnostics:
750      add new capability: output of Global/Regional & per-level statistics ;
751      tested against monitor output (including land & thSIce) on various exp.
752    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
753    
754    checkpoint57h_done
755      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
756      data.diagnostics, data.gchem, data.ptracers) is done.
757    
758    o pkg/diagnostics: prepare for Global/Regional statistics.
759      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
760    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
761      and rename it: DIFFERENT_MULTIPLE
762    
763    checkpoint57h_post
764    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
765    o pkg/diagnostics: change output frequency, now in seconds (instead
766      of Nb of iterations). This requires to change data.diagnostics.
767    checkpoint57h_pre
768    
769    o in mnc, let the user create the output dir if both mnc_outdir_date
770      and mnc_outdir_num are false
771    o add fflags() to pkg/diagnostics which allows one to specify, on a
772      per-file basis, the file precision [default behavior is unchanged]
773    o added diagnostics to pkg/kpp, including computation of mixed layer
774      depth based on a temperature/density criterion
775    o updated verification/natl_box to test the new pkg/kpp diagnostics
776    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
777    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
778    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
779      not mnc -- this mistake was found by JMC and is now corrected
780    
781    checkpoint57g_post
782    o add Adams-Bashforth 3rd Order time stepping:
783      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
784      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
785    checkpoint57g_pre
786    
787    o make lambda[Theta,Salt]ClimRelax spatially varying
788      (default remains spatially uniform constant based on tau)
789    o added new control variables
790      * init. uVel, vVel, etanN
791      * lambda[Theta,Salt]ClimRelax
792    o separate masks used for ctrl_pack/unpack 'from write_grid' output
793      (suggested by G. Forget)
794    
795    checkpoint57f_post
796    o add parameter "baseTime" = model base time = time at iteration zero
797      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
798      account for baseTime shift
799    o move Coriolis arrays from PARAMS.h to GRID.h
800    checkpoint57f_pre
801    
802    o mnc-ifying the seaice package
803    o introduced an alternative length scale calculation for use in the limiting
804      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
805    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
806    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
807      as well as grad(vort3).  Made it compatible with both approximate form
808      for the cubed sphere and full form of these gradients.  Added flag
809      useFullLeith to select between approximate and full form.  
810    o add "d0" in getcon.F to reduce differences between compilers/platforms
811      update output.txt of exp. fizhi-gridalt-hs
812    o change port_rand funtion to allow to set the seed.
813    o fix obscure MNC bug involving conversion between reals and integers
814      - it caused no problems with certain (eg. gcc, ifc) compilers but the
815        new version is now more standards-compliant
816    o adjoint-related modifications
817      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
818      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
819      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
820    
821    checkpoint57e_post
822    o Adding eddy stress controls a la Ferreira et al.
823    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
824    
825    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
826      update output.txt of exp. fizhi-gridalt-hs
827    o add more "Z" dimensions and associated coordinate vars to MNC
828    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
829    o parameter calendarDumps: when set, approximate months (30-31 days) and years
830      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
831      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
832      months and years.  Requires pkg/cal.
833    o diagnostics: add pickup functionality
834      - off by default for backwards compatibility
835      - current version only uses MDSIO -- MNC will be added
836    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
837    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
838    
839    checkpoint57d_post
840    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
841    o modify verification/ideal_2D_oce so that it tests the creation of mnc
842      output from the diagnostics package
843    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
844    o make genmake2 more portable by using ".$FS" instead of ".f" for more
845      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
846    o add coordinate variables to the MNC output from the diagnostics package
847    o change MNC-flags default value: true when useMNC=TRUE
848    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
849      the ability (off by default) to read the grid information using MNC
850    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
851    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
852    o do snap-shot diagnostics at the middle of the time-interval (instead of
853      at the end).
854    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
855      new test for AIM with thSIce + slab-ocean
856    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
857    o move state variable diagnostics to the beginning of the time step ;
858      (note: still needs some work specially for snap-shot diagnostics)
859      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
860    
861    checkpoint57c_post
862    o Change testing option (-ieee) to get closer agreement between g77 & ifort
863    o generate new output.txt files on faulks with g77 & the new -ieee option
864    checkpoint57c_pre
865    
866    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
867      update output.txt of exp. global_ocean.90x40x15
868    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
869      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
870    o add saltFlux(+File) forcing capability with periodicExternalForcing
871    o allow to use pkg diagnostics for GM-Redi & ThSIce output
872    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
873    o improvements for the MNC output from DIAGNOSTICS:
874      - correct handling of the unlimitied dimension
875      - all dims now have associated coordinate variables
876      - variables located at U, V, and Corner ("Z") points are now written
877        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
878        *all* data points are output
879    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
880    o added pkg/seaice/seaice_monitor.F
881    o mdsio_readfield.F can now read files visible only to master MPI process.
882    o pkg/seaice: some test code for ice-modified ocean stress
883    o exf_getffields interpolation defaults to bilinear for all scalar forcing
884      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
885      spurious negative numbers for precipitation and humidity.  Will cause
886      some small numerical differences for integrations using pkg/exf/exf_interp.F.
887    o pkg/ctrl/
888      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
889        May be enabled via doPackDiag
890      *  introduce z-scaling of
891         + gradient (doZscalePack) and
892         + control (doZscaleUnpack)
893    o pkg/mdsio/
894      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
895      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
896    
897    checkpoint57b_post
898    o simplify options in diagnostics_fill arguments (remove weird combinations)
899    o fix MNC coordinate variables so that they now contain per-face index
900      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
901      general, EXCH2 grids are only aligned to a "local" coordinate system
902    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
903    o Implement instantaneous output within pkg diagnostics:
904      setting a negative frequency in data.diagnostics produces
905     "snap-shot" output (as opposed to time-average if freq > 0)
906    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
907      NOTE: change ptracer diagnostics name: use 2 characters to work with
908            more than 9 tracers. Add also diagnostics of advect & diffus flux.
909    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
910      becomes the coordinate variable for the 'T' dimension
911    o add CF-style coordinate variables to MNC
912      - just a first cut:  numbers are meaningless on the cubesphere and
913        missing along the T axis but otherwise it works!
914    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
915    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
916    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
917      this is based directly on what the model compute, so that the content of
918      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
919    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
920    o clean up build options files for SunOS, in particular
921      - remove -traditional from xmakedepend
922      - change -xarch=v9 to -xarch=native for f77
923      - restore use of make (not gmake)
924      - add CC=gcc if using g77
925    o changes per discussion of AM, JMC, & EH3 today:
926      - move redundant "grid" variables out of "state" -- in preparation of
927        creating proper CF-style coordinate variables and in recognition
928        that any/all grid variables can be easily copied (eg. w/NCO) from
929        the grid files into any of the other NetCDF files
930      - *always* output grid variables with MDSIO (this will eventually be
931        changed)
932      - output MNC grid file if useMNC is true
933    o every instance of _END_MASTER() has been found and replaced with
934      _END_MASTER( myThid ) in order to satisfy certain picky Sun
935      preprocessors
936    o re-arrange diagnostics pkg initialisation:
937     - allow each package to extend the available diagnostics list
938     - add some checking and fix small problems (multi-threaded, ...)
939     - new S/R diagnostics_fill (replace fill_diagnostics):
940       look through the short list of active diag. (instead of the long list)
941       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
942    
943    checkpoint57a_post
944    o this set of changes restores TAMC compatibility
945      tested for global_ocean.90x40x15 adjoint on trough
946      (what a pain)
947    
948    checkpoint57a_pre
949    o some modifs in tools/build_options for sunos
950    o call ctrl_pack for ctrl at end for optimcycle=0
951    
952    checkpoint57
953    o add horizontal bi-harmonic viscosity for vertical velocity
954      - new parameter viscA4W (defaults to viscA4)
955      - affects only non-hydrostatic code
956      - to be done: no-slip lateral boundary conditions
957    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
958    o implement Implicit Vertical advection for pTracers
959    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
960      (implemented also for implicit vertical diffusion & advection)
961    o OBCS: extend application of tracer open boundary conditions
962      to a strip beyond the boundary of width Olx/Oly
963    o add call monitor to TAF set of required calls (flow directives)
964      and include in natl_box_adjoint
965    o untangle a few ifdefs related to cost, ctrl, autodiff
966      untangel a few ALLOW_ECCO_OPTIMIZATION
967    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
968      (theta2, salt2 in ecco_cost_weights)
969    
970    checkpoint56c_post
971    o OBCS as control variables
972      - update ctrl_ad_diff.list, obcs_ad_diff.list
973      - remove balance of obcs controls from default
974      - fix index bug nobcs in ctrl_init
975      - fix dummy fields filen in ctrl_pack
976      - add dummy weights for obcs
977    o lsopt: comment out fort.94 output
978    o optim:
979      - remove unnecessary header files
980      - adjusted namelists
981      - add xerbla.F to Makefile
982    o exf:
983      - multiple modifications of exf_check_range
984      - unit change in exf_init_runoff from [m/year] to [m/s]
985    o mdsio:
986      - i/o-vector change debugLevel from debLevA to debLevB
987    
988    checkpoint56b_post
989    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
990      is called from DO_THE_MODEL_IO
991      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
992      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
993      - clean up PTRACERS_WRITE_TIMEAVE a little
994    o add another verification experiment that tests both the cfc-pkg and
995      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
996      reactive tendencies treated inline with regular timestepping
997    o testreport previously did a lousy job of comparing small numbers, so
998      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
999      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1000      testreport.
1001    o ptracers_monitor: bug fix for MPI
1002    
1003    checkpoint56a_post
1004    o GCHEM: finish reorganizating the package
1005      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1006        (introduces another 3D-array for each passive tracer, but only if
1007        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1008        gchemTendency is not needed because the timestep is done separately)
1009      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1010      - GCHEM is now---more or less cleanly---separate from PTRACERS
1011      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1012        so clear to me how that should be done in a general way.
1013    o CFC: improve formatting of output in CFC_ATMOS
1014    o PTRACERS:
1015      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1016        that ALL experiments with ptracers enable can be checked. This makes
1017        GCHEM_MONITOR obsolete.
1018      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1019        monitorFreq
1020      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1021    o add PTRACERS (PTR0[1-5]) to testreport output
1022    o exf_check_range:
1023      * default changed to .TRUE.
1024      * will check values for niter0 if debLevA, every timestep if debLevB
1025      * STOP in exf_check_range if 'out of range'
1026      * range chosen generous to allow for potential extema
1027      TBD: a version with stricter range
1028           permitted range would be runtime parameters
1029    o GMredi:
1030      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1031      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1032      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1033    o GCHEM:
1034      - move call to GCHEM_FORCING_SEP, so that it is now called before
1035        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1036      - introduced a useGCHEM runtime flag and applied it everywhere.
1037      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1038        this flag is now only visible within GCHEM-pkg routines.
1039      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1040        be replaced by a 3D array that is computed before thermodynamics; for
1041        this, the tracer ID iTracer had to be included into the parameter list
1042        of ptracers_forcing
1043      - set up forward_step to call gchem_forcing, that will replace
1044        gchem_forcing_int in ptracers_forcing
1045      - cleaning up
1046    o small cleaning of exch2: remove files that are also in eesupp/src
1047    
1048    checkpoint56
1049    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1050    o mnc: cleanup "full" files--fixes out-of-memory problem
1051    o ECCO-GODAE
1052      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1053      * fully merged and updated from SIO code
1054        windstress sign change affects
1055        - exf_inscal_[u/v]stress
1056        - sign of xx_tau[u/v] adjustments
1057        - signs in cost_scat
1058      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1059      * natl_box_adjoint updated and compressed
1060      * 2-level checkpoint switch added
1061        (tested in EXP. 1 of natl_box_adjoint)
1062      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1063    o SVD
1064      * first complete, non-hacked version for SVD calculations
1065      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1066        performed via direct access files admtlm_vector.it????
1067        (via ctrl_[un]pack)
1068      * optimcycle is used for ARPACK iteration counter
1069        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1070      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1071        and add linear transforms where necessary
1072      * controls are initial/final SST, SSS (can be extended; need to check
1073        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1074    o mdsio: filename info to both stderr, stdout
1075    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1076      from sign change
1077    
1078    checkpoint55j_post
1079    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1080      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1081    o add consistent build directories and .cvsignore files to verification
1082    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1083    o make all subroutines 30 or less characters in length for certain older
1084      compilers to work (a thorough search only turns up two routines in
1085      pkg/ptracers)
1086    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1087      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1088    
1089    checkpoint55i_post
1090    o change arrays for total vertical diffusivity (2.D if explicit,
1091      3.D if implicit) ; each ptracer uses its own background value.
1092    o added mnc/NetCDF output capability to ocn_compon_interf
1093      - added bits to verification/cpl_aim+ocn so that it can run on
1094        ITRDA and other clusters without the mpirun "-wd" option
1095    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1096      configuration
1097    o give MNC the ability to create additional files rather than
1098      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1099      - the default is just less than 2GB which is a practical limit
1100        on many systems
1101    o Compute the non-local term using either KPP vertical diffusivity (=default)
1102       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1103    
1104    checkpoint55h_post
1105    o add verification test "vermix"
1106    o remove all the *_ioinc flags and replace with the single global
1107      outputTypesInclusive flag
1108    o allow to set a vertical profile of vertical diffusivity for T & S
1109    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1110    o useMNC moved from data.mnc to data.pkg
1111    
1112    checkpoint55g_post
1113    o Renaming carbon AD experiments to comply with testreport conventions
1114    o Updating adjoint of Held-Suarez hs94.1x64x5
1115    o Fixing directives for non-ECCO forward_step, after ECCO directives
1116      have been fixed to avoid recomp. of do_oceanic_phys
1117      Works well for global_ocean.90x40x15,
1118      but recomp. issue remains for carbon
1119    o Updating adjoint output for natl_box_adjoint after
1120      pkg/ecco has been modified (see taga c55d_post)
1121    
1122    checkpoint55f_post
1123    o rename to timeave_init_fixed
1124    
1125    checkpoint55e_post
1126    o some delicate re-shuffle of store directives to avoid one
1127      extra call of do_oceanic_physics
1128      affects ecco_the_main_loop.F, do_oceanic_physics.F
1129      checkpoint_lev1_directives.h
1130    o NB: this may break global_ocean adjoint temporarily,
1131      but it is clear how to fix it. Will do later, need this now.
1132    
1133    checkpoint55d_post
1134    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1135    o ecco_cost_weights is modified to 1x1 runs
1136    o modifs to allow observations to be read in as
1137      single file or yearly files
1138    o enable to read exf forcing fields as either
1139      single file or yearly files (flag useExfYearlyFields)
1140    checkpoint55d_pre
1141    
1142    o switch between 2-level and 3-level checkpointing
1143    o add ability of MNC to write local and "partial" (eg. 2D slices where
1144      the full 3D field is never actually stored) arrays to NetCDF files
1145      with the correct (that is, the complete multi-dimensional) set of
1146      array indicies
1147      - used in mom_vecinv() to write the diagFreq output
1148      - tested (demonstrated) in verification/aim.5l_cs
1149    o further mnc-ification
1150      - add verification/lab_sea to the list with mnc setups
1151      - fix undefined mnc v-names in cd_code
1152      - add kpp to mnc output (both snapshot and timeave)
1153    o non-hydrostatic code
1154      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1155        in calc_gw.F
1156      - defaults to viscAh
1157      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1158        friction or Leith) in non-hydrostatic mode, as long as there is
1159        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1160    o pkg/cost
1161      extend simple cost functions to treat time mean quantities
1162      (T,U,V) via cost_accumulate_state from cost_tile
1163    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1164        be 2 times larger than the minimum size the advection scheme requires.
1165        now get a perfect conservation of salt in advect_cs test-exp (updated)
1166    o GGL90 (Gaspar's TKE mixed layer)
1167      - add horizontal diffusion of TKE, requires exchanges in
1168        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1169        default. In OPA there is no horizontal diffusion of TKE but the
1170        mixing coefficients are computed from a horizontal average of TKE of
1171        6 points or so. I think that diffusion has a little more physical
1172        justification.
1173      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1174        was in vain)
1175      - mask tke-variable in ggl90_init
1176    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1177    o fix biharmonic diffusion on CS-grid.
1178    o more obcs stuff
1179      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1180        for reading boundary values. This routine is called from
1181        obcs_prescribe_read
1182      - updated obcs_check
1183      - changed sponge layer relaxation parameter units for days to seconds
1184      - turned off sponge layer by default
1185      - changed argument list of OBCS_CALC to myTime+deltaTclock
1186      - fixed about 35 bugs in obcs_external_fields_load
1187    
1188    checkpoint55c_post
1189    o obcs stuff
1190      - new runtime flags useOBCSprescribe, useOBCSbalance
1191      - re-arranged obcs_calc
1192      - moved exf_getobcs to obcs_prescibe_read
1193        obcs_prescibe_read is called after ORLANSKI stuff
1194        and independent of it (executable can contain all).
1195      - updated obcs_check
1196      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1197        These may be necessary only if tangential velocities are
1198        prescribed at OB, not sure, needs testing.
1199    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1200      which simplifies the calls and passes the ifc check-bounds test
1201    
1202    checkpoint55b_post
1203    o add a 2D scalar, Z location, exchange_2 routine.
1204    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1205      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1206      affects advect_cs results (for the wrong reason): update output.txt
1207    o use a more standard discretization for biharmonic viscosity ;
1208     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1209      affects results of dome set-up: update output.txt
1210    o fix gad_advection.F (CubedSphere part), back to version 1.23
1211    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1212    
1213    checkpoint55a_post
1214    o merged code to
1215      * prescribe/read time-dependent open boundaries
1216        (works in conjunction with exf, cal)
1217      * sponge layer code for open boundaries
1218      * each boundary N/S/E/W now has its own CPP option
1219        (healthy for the adjoint)
1220    
1221    checkpoint55
1222    o up-to-date adjoint of previous breaks
1223      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1224      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1225      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1226      - carbon: * remove tr1-related adjoint verification
1227                * add ptracer as control variable
1228    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1229      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1230    
1231    checkpoint54f_post
1232    o in verification/carbin/ remove experiment related to
1233      ALLOW_PASSIVE_TRACER (array tr1 etc)
1234      code_ad/ input_ad/ results_ad
1235    
1236    o add two new packages
1237      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1238        + subject to optimization (memory)
1239      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1240        + subject to reordering (many GOTOs in the original code)
1241        + so far opps is called for every (i,j) point, and then operates in
1242          the vertical; one may want to reorder the scheme in order operate in
1243          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1244          fields)
1245    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1246      - all verification tests compile and run with linux_ia32_g77
1247      - defaults are compatible with current input files--nothing
1248        should change if you were not previously using MNC
1249      - MNC output has been added in numerous places (eg. timeave)
1250        but there are still a few writes not yet do-able with MNC
1251        (this is in progress)
1252      - flags now allow for either/or/both use of MDSIO and MNC and
1253        documentation will soon follow
1254      - numerous small formatting cleanups for ProTeX
1255    o add version info (via BUILD_INFO.h) to MNC and stdout
1256    
1257    checkpoint54e_post
1258    o add two new packages
1259      - pp81 (Packanowski and Philander, 1981), Richardson number and
1260        stratification dependent mixing
1261      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1262      - these scheme operate in a similar manner as KPP (without ghat, of
1263        course), however there is only one diffusivity that is used for both
1264        temperature and salinity (and passive tracers)ç
1265    o add offline package
1266    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1267      provided by Stephanie Dutkiewicz
1268    o genmake2: add ability to search for C compilers and cleanup test output
1269      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1270    
1271    checkpoint54d_post
1272    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1273    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1274      leading to additional shift by 5 days each year of integration
1275       (i.e. leading to considerable offset over the years)
1276    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1277    o start with no AB and no initial filtering (staggerTimeStep):
1278      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1279    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1280      (external loading & cpl import/export stay in forward_step.F)
1281    o update coupling interface to work with new staggerTimeStep
1282    o change MDSIO ptracers_pickup.
1283    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1284    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1285    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1286    
1287    checkpoint54c_post
1288    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1289      this affects (truncation error) output.txt of test-exp:
1290       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1291    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1292    o change Qnet to always be the net heat flux, (+upward).
1293      affects (truncation error) output of natl_box exp.: updated
1294    o define the max number of passive tracers in PTRACERS_SIZE.h
1295    o start to test mnc routinely in exp0
1296    o add sea-ice loading (sIceLoad) as a new forcing field.
1297    
1298    checkpoint54b_post
1299    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1300       impressive on Altix and Opteron systems)
1301    o diagnostics can now write NetCDF files through the mnc package
1302    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1303    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1304    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1305      affects (truncation error) output of lab_sea & natl_box exp.: updated
1306    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1307    
1308    checkpoint54a_post
1309    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1310    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1311    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1312    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1313      + internal_wave (shift in writing cg2d_ini_res)
1314    checkpoint54a_pre
1315    
1316    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1317      - modified verification/lab_sea and natl_box_adjoint accordingly
1318    
1319    checkpoint54
1320    checkpoint53g_post
1321    o prepare splitting of thermodynamics: store convect.counter in common block
1322    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1323      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1324    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1325    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1326    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1327    o restore adjointability
1328    
1329    checkpoint53f_post
1330    o modifications that affect AIM experiment results (update output.txt):
1331      - no advection of S at top interface Nr (pkg/generic_advdiff)
1332      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1333    o AIM pkg:
1334      - include stability function into surf.Flux derivative relative to Tsurf
1335      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1336    
1337    checkpoint53e_post
1338    o merged cylindrical coord configuration
1339    o added rotating_tank experiment
1340    checkpoint53e_pre
1341    
1342    checkpoint53d_post
1343    o faulks upgraded: re-generate output.txt that have changed:
1344       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1345    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1346    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1347    o added Sadourny discretization of Coriolis
1348      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1349      - re-enabled use of omega3 (useAbsVorticity)
1350    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1351      vector-invariant equations
1352      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1353    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1354      hopefully without new bugs
1355      - still to do: biharmonic friction for non-hydrostatic w
1356    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1357    o regenerated output for global_ocean_ebm (using -ieee)
1358    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1359      of mom_common/
1360      - simple re-arrangement of instructions within computing loop
1361    checkpoint53d_pre
1362    
1363    checkpoint53c_post
1364    o new version of coupler for AIM+thSIce and Ocean models
1365     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1366     - land: change Evaporation of snow
1367     - aim with thSIce: fix bug in snow-precip.
1368    o changes to calc_gw.F
1369     - bug fix for w^2 term near the bottom boundary
1370     - (hopefully) improve the lateral slip boundary condtions for use with
1371        partial/looped cells
1372      - because the bug fix changes two verification experiments anyway (exp5
1373        and plume on slope), change the lateral boundary condition from half slip
1374        to the value of no_slip_sides
1375    o ebm package wasnt quite up to the parallel task. Fixed that.
1376    o Adjoint of EBM package + verification
1377      * TLM OK
1378      * ADM not sufficient accuracy yet (needs further testing)
1379    
1380    checkpoint53b_post
1381    o Commiting new energy balance model to repository
1382      * package is pkg/ebm
1383      * verif. is verification/global_ocean_ebm
1384      * references are in ebm_driver.F
1385    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1386    C        Global thermohaline circulation. Part I:
1387    C        Sensitivity to atmospheric moisture transport.
1388    C        J. Climate 12(1), 71-82
1389    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1390    C        Global thermohaline circulation. Part II:
1391    C        Sensitivity with interactive transport.
1392    C        J. Climate 12(1), 83-91
1393    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1394    C        Destabilization of the thermohaline circulation
1395    C        by atmospheric eddy transports.
1396    C        J. Climate 7(12), 1870-1882
1397    o Will need long integration testing.
1398    checkpoint53b_pre
1399    
1400    o created pkg/mom_common in preparation for variable viscosity code
1401    o renamed and split ini_mnc_io
1402    o pkg/land: only liquid water can diffuse or run-off
1403    o AIM using land: soil wetness availability account for snow
1404    o added printMapIncludesZeros to EEPARMS namelist
1405    
1406    checkpoint53a_post
1407    o restore TAMC compatiility for exf_constants.h
1408      (no usage of _d in .h)
1409    o Additional storing in KPP in an attempt to fix
1410      TAMC problem with adjoint of KPP code.
1411      (no success...)
1412      Identical code works fine with TAF.
1413    o Fixed verification/natl_box_adjoint experiments.
1414      Initial conditions for Experiments 4 and 5 are now
1415      set to "SEAICE_initialHEFF=0", which is more reasonable,
1416      and hence gives results closer to that of Experiment 2.
1417      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1418    
1419    checkpoint53
1420    o stable checkpoint with up to date adjoint
1421      TLM tests only run for 1st grdchk at the moment. Its unclear if
1422      this is a code problem or a problem with resetting code for g_
1423      variables that is being autogenerated wrong.
1424      Otherwise:
1425       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1426       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1427         are both still in chaos following their security messes.
1428    
1429    checkpoint52n_post
1430    o various build (mostly genmake2) changes including:
1431      - ability to build/run more easily within Cygwin and MacOS X
1432      - more complicated Makefiles with a stronger dependence on Gnu Make
1433    o pkg/seaice modifications
1434      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1435        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1436        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1437      - changed proxy for geostrophic velocity and updated
1438        verification/lab_sea/results/* accordingly
1439      - removed ADI dynamic solver from pkg/seaice
1440      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1441        they caused a segmentation fault under certain circumstances
1442      - removed unused field WATR
1443    o bug fix in exf-package:
1444      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1445         now reflect that.
1446    o small fixes in the cal-package:
1447      - set reference date to first of January for the 'model'-calendar
1448      - failing of cal_CheckDate in cal_FullDate now actually results in a
1449        warning
1450    o small modifications in exf-package to increase flexibility:
1451      - change climtempfreeze from a constant to a runtime parameter that
1452        is specified in data.exf_clim (default = -1.9)
1453      - introduce runtime parameter windstressmax (default = 2.0) that is
1454        specified in data.exf
1455    o fix in pkg/thsice:
1456      - update Evap (Tsf changes) to be consistent with Latent heat flux
1457      - maintain snow precipitation unchanged (even if Tsf >=0).
1458     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1459    
1460    checkpoint52m_post
1461    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1462      this does not change any of the results, because myIter=0 in swfrac always
1463      lead to jwtype=2 (the default anyway), but the call makes little sense
1464      as a default
1465    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1466  o re-work pkg/thsice interface with ocean & bulk_force pkg to allow  o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1467    atmospheric model (AIM) to use it ; add a "slab ocean" component.    atmospheric model (AIM) to use it ; add a "slab ocean" component.
1468  o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)  o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)

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