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revision 1.107 by cheisey, Mon Dec 2 13:28:30 2002 UTC revision 1.722 by jmc, Thu Aug 31 15:33:43 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    
8    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
9    
10    checkpoint58o_post
11    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
12      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
13    o change controling S/R for writing pickup file (new S/R do_write_pickup)
14      and clean-up reading/writing of pickup files.
15    o fix local version of read/write pickup (NH part) in rotating_tank/code
16    o simplify EXCH interface:
17     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
18     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
19    o added the regrid package
20    o shelfice:
21     - add a simple boundary layer scheme to reduce noise
22     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
23    
24    checkpoint58n_post
25    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
26       local variable (not in common block).
27    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
28      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
29      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
30        to work with SingleCpuIO.
31    o add "_d 0" to real constant of pkg/cfc subroutines ;
32       update exp. cfc_exemple & tutorial_cfc_offline output files.
33    o multi-threading and IO:
34      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
35        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
36      - barrier before and after reading.
37      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
38      - avoid using MDS_WRITELOCAL for LAND pkg output.
39      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
40        common-block variables ; Allows multi-threading with master-thread IO.
41    o change default MAX_NO_THREADS from 32 to 4 ;
42      and stop cleanly when MAX_NO_THREADS is too small.
43    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
44    
45    checkpoint58m_post
46    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
47       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
48    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
49       keep global_ocean.90x40x15 (for AD testing) with former secondary test
50       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
51    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
52        add MITgcm_tutorials (= code + all the tutorials)
53    o ecco, option to compute cost for total ssh (mean+anom)
54    o consistent with addition of ptracer and ssh in pkg/profiles
55    o profiles: adding ptracer and ssh
56    o testreport: change multi-test output-file name
57      (from output.txt.{name} to output.{name}.txt)
58    o profiles: now ok for mutli-tiles case
59    o seaice: add 4 parameters for different advection schemes for area,
60      (effective) seaice thickness, enthalphy, and snow height. Their default
61      is the standard parameter SEAICEadvScheme
62    o calc_gw:
63     - add cosFacU in zonal viscous flux (harmonic.visc.).
64     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
65       of tutorial_plume_on_slope.
66    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
67    o calc_gw: true flux-form, account for horizontal grid spacing.
68      update rotating_tank results, but not plume_on_slope (affected at
69      truncation level, 11 digits).
70    
71    checkpoint58l_post
72    o calc_gw:
73     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
74     - remove side-drag for now (need to fix it); update plume_on_slope results.
75     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
76    o commit code to make SST/SSS weights spatially variable
77      (based on either variable in-situ or variable initial T/S weights)
78    o pkg/ecco:
79      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
80        now based on horizontally varying weights wthetaLev, wsaltLev
81      * cost_averagesflags now returns year indices in addition to day, month
82      * sflux balance is performed on annual basis
83        (sflxumm, sfluxmm2, bal_sfluxmm)
84      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
85        including separate counting and multipliers
86    o pkg/rbcs
87      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
88    
89    checkpoint58k_post
90    o testreport:
91     - always build in dir. "build" (if not there, mkdir build instead of building
92       & running in input)
93     - run in dir run (if it exists), in build otherwise.
94     - call prepare_run (if input/prepare_run exists)
95     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
96    o pkg/exf modifications to interpolation and rotation routines for more
97       reasonable treatment of North Pole singularity: for tracers North Pole
98       value is set to northernmost zonal-mean value, for zonal velocity it is
99       set to zero, and for meridional velocity it is set to northernmost value.
100    o pkg/exf/exf_check_range.F
101     - add tile index to diagnostics and move stop statement to the very
102       end of the routine.
103    o pkg/diagnostics: (diagnostics_main_init.F)
104      define title of isomorphic variables according to the current config.
105    o pkg/thsice with pkg/seaice dynamics:
106    - fix domain of computation (interior only, required for exf) and do exchanges
107    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
108    o towards a standard way of dealing with multi-threading in MONITOR
109      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
110    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
111       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
112    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
113    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
114    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
115       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
116    o tracer advection:
117     - clean-up and simplify calc_common_factors.F
118     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
119       advection subroutine (but still not used within DST advection S/R)
120    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
121    
122    checkpoint58j_post
123    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
124      from file (collects calls previously in FORWARD_STEP)
125    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
126    o adjoint store dir. adjusted accordingly
127    o genmake2
128      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
129    
130    checkpoint58i_post
131    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
132      on wind stress (SEAICEstressFactor defaults to 1.)
133    o Total number of Timers is finite (<=40): comment out 2 non-essential one
134      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
135    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
136      on CS-grid: no longer loosing mass.
137    o exf & curvilinear-grid: no longer modify longitude xC & xG.
138    o pkg/ggl90: fix sloppy output and fix a bug
139    o pkg/seaice: added SEAICEuseEVPpickup parameter
140      - Set to false in order to start EVP solver with
141        non-EVP pickup files when using SEAICEuseEVP
142      - fix sign error in diffusion in seaice_calc_rhs
143    
144    checkpoint58h_post
145    * Modifications for bottom topography control
146      o replace hFacC by _hFacC at various places
147      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
148      o add non-self-adjoint cg2d_nsa
149      o update autodiff support routines
150      o re-initialise hfac after ctrl_depth_ini
151      o works for 5x5 box, doesnt work for global_ocean.90x40x15
152    * Adding verification for 5x5 box (4-layer) bottom topography control
153    
154    checkpoint58g_post
155    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
156       used for mean seasonal cycle, mean diurnal cycle); add an example
157       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
158    o pkg/ggl90:
159      - add parameter (minimum surface kinetic energy)
160      - fix bug (avoiding division by zero)
161    o couple pkg/thsice to pkg/seaice:
162      - modify advection in seaice to accomodate new scalar fields to be advected
163      - only muliDimAdection scheme work with seaice/thsice
164      - mapping of thsice-variables to seaice-variables, back and forth
165      - does not break the verification experiments, but does not give the
166        desired results either
167    o pkg/seaice
168      - make (default) second order advection a bit less confusing?
169    
170    checkpoint58f_post
171    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
172      to pkg/seaice):
173      - new routines thsice_map_exf and thsice_get_exf provide the interface
174      - add an additional formal parameter to thsice_solve4temp
175    o pkg/exf:
176      - add new fields wspeed, snowprecip (to be able to couple to thsice)
177      - correct Stefan-Boltzmann constant
178      - new parameter for longwave surface emittance
179      - separate some stuff from exf_bulkformulae into new routines  
180        exf_radiation, exf_wind
181      - add new parameters and constants: longwave emissivity for ocean, ice
182        and snow, evaporation parameters over ice
183      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
184        either wind from stress or stress from wind
185    o pkg/thSIce:
186    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
187    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
188       and THSICE_CALC_THICKN
189    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
190    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
191      to make debugging easier.
192    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
193    o pkg/bulk_force:
194      - clean-up comments and parameters ;
195      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
196    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
197      generate new output for test-experiment: aim.5l_cs.thSI
198    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
199      testreport accordingly
200    
201    checkpoint58e_post
202    o SEAICE_CGRID adjoint done
203    o R_STAR adjoint implemented.
204      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
205      * need to sort out init. of h0facc, etc.
206    o Make pkg/profile fully independent of ecco,cost, etc. stuff
207      to be able to use it in pure forward.
208    
209    checkpoint58d_post
210    o upgrade simple test-experiment to tutorial example:
211     step.1: duplicate the experiment and (step.2) will remove the old copy.
212      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
213      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
214      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
215      tutorial_global_oce_biogeo    <- copy of dic_example
216      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
217      tutorial_plume_on_slope       <- copy of plume_on_slope
218      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
219      tutorial_global_oce_optim     <- empty for now (David ?)
220      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
221     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
222    o correct a sign problem in cost_scat.F
223    o obcs and ptracers: fix boundary conditions for advections schemes
224      with larger stencil
225    o thsice adjoint: start
226    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
227      completeness
228    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
229      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
230    o ptracers adjoint:
231      * avoid extensive recomputatations
232      * fix missing re-init. of gptr (missed by TAF)
233    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
234      me to turn off the excessive output to STDOUT that this package produces
235    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
236      and add those terms in Vector-Invariant formulation.
237    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
238      if the control period (xx_hfluxperiod etc) is 0
239    o in profiles pkg, clean routines and fix details
240    o in ecco pkg, reading ssh data:
241      fix problem in case the model does not start at iter0=0
242    o fix mnc-pickup/restart for ptracers
243    o new package prifiles:
244      code to compute profile-based cost by Gael Forget
245      (modifs in ecco, ctrl, autodiff)
246    o Benign bug fix in initialization (spotted by M. Mazloff) of
247      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
248    
249    checkpoint58c_post
250    o adjoint: finish NLFS adjoint and provide reference output in
251      verification/global_ocean.90x40x15/results_ad_nlfs
252    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
253      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
254      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
255      with SEAICE_CGRID defined.
256    o move calendarDumps from "data" to "data.cal" and clean-up the code
257      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
258    o add useEXF & useCAL flags (for now, set in hard-coded way)
259    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
260      (were missing in NH mode, and wrong in quasihydrostatic mode).
261      waiting for Chris updated version of calc_gw to add those CALLs.
262    o fix bug in quasihydrostatic S/R ;
263      add a test for this option: global_ocean.90x40x15.qshyd
264    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
265      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
266    o add on/off flag useOffLine for package OFFLINE
267    o seaice:
268      - modify advection so that it works also on the C-grid
269      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
270        problem in multi-tile runs with C-grid
271      - add flags for clipping ice velocities and/or masking solver forcing
272      - fix drag (ocean on ice) formulation and a bug that caused noise in the
273        C-grid solver
274      - added a few comments to seaice_diffusion.F
275      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
276        are now exclusive)
277      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
278        required re-ordering the code a little:
279       + make DAIRN global variable (defined in SEAICE)
280       + move computation of the viscosities eta and zeta into a new separate
281         routine (because I need to recompute them in seaice_ocean_stress.F)
282    
283    checkpoint58b_post
284    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
285      update output.txt of exp. aim.5l_cs.thSI
286    o various mnc cleanups and improvements:
287      + shrink lookup tables by factor of ~4
288      + better error reporting when running out of lookup space
289      + able to handle longer path/file names (up to 500 chars)
290    o adjoint:
291      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
292      - TBD: "hidden" mom_vecinv recomp. in dynamics
293    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
294     (allow to differentiate between forcing components using new integer flags:
295      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
296     and add new flag to put Dissipation tendency out of Adams-Bashforth.
297    o ecco
298      - enable trend removal from SSH anomaly obs.
299    o adjoint
300      - a fix for PmEpR when #undef EXACT_CONSERV
301      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
302      - try to fix "hidden" recomp. in forward_step for NLFS
303        (NLFS seems broken sometimes after I checked it in)
304    o seaice:
305     - add c-grid version of the dynamic solver:
306       + three new routines that are the c-grid substitute lsr, dynsolver
307         and ostres
308       + put a few fields that were local to dynsolver into global common
309         blocks, so that I can move the computation of stresses etc into
310         seaice_lsr (saves coding but may break the adjoint).
311     - replace more hardwired parameters by runtime parameters
312     - add ice masks that mask the rhs of the implicit solvers where there
313       is no ice (commented out in seaice_dynsolver, because i am not sure
314       if this works properly), eventually this should replace the clipping
315       of ice velocities in seaice_dynsolver to +/-40cm/s.
316    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
317      include it only where its needed
318    o move balancing of fluxes before the call of external_forcing_surf
319    o seaice:
320      - correct units of turning angles (now they are really in degrees)
321      - move computation of GWATX/Y out of main routine into dynsolver
322      - initialize GWATX/Y in seaice_init
323    o Apply mask on Fresh-Water flux (needed for SSH forcing).
324      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
325    o seaice: add runtime flags for turning angles (default to zero)
326    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
327      and trend from exf forcing and ctrl control adjustments
328    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
329      (since checkpoint57x_post)
330    o change the default rotation period to 86164.s = the Earth rotation
331    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
332      and based on a reference stratification. Tested within hs94.cs-32x32x5.
333    o seaice advection: add code for choosing between the default (2nd order
334      central differences) and multiDim advection schemes provided by
335      pkg/generic_advdiff
336    o seaice:
337      - removed all references to SEAICE_GRID.h fields from
338        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
339        (cubed-sphere configuration will change a little)
340      - grid computations in seaice_init are obsolete now.
341      - cleaned up code a little so that is easier to read (hopefully).
342      - added new (better?) discretizations of default advection and diffusion
343        (turn on with SEAICEuseFluxForm)
344      - replace 1 in 3d global fields by kSurface in growth.F
345      
346    checkpoint58a_post
347    o seaice:
348      - bug fix in advect.F
349    o shelfice:
350      - separate shelfice load anomaly from pload (breaks with time
351        dependent forcing), => introduce constant field shelficeLoadAnomaly.
352        Its default is 0., but it may be computed more cleverly from (unknown)
353        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
354        done offline. A good approximation of the pressure load anomaly is
355        necessary to avoid large initial adjustment processes underneath
356        deep-reaching shelfice.
357      - small fix in ISOMIP shelfice_thermodynamics
358      - add more sophisticated thermodynamics of Hellmer (1989), this is
359        now the default
360      - give a few constants more intuitive names
361    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
362      if bulk formulae are used in long integration (especially EmPmR). Turn
363      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
364      if balancePrintMean, the imbalance that is substracted is printed to
365      STDOUT.
366    o fix bug (typo) in obcs_apply_eta.F
367    o add a new package shelfice which enables us to model the circulation
368      underneath shelf-ice with draughts of hundreds of meters.
369     - works
370     - to do: + include improved thermodynamics
371              + check whether kSurfC (from model/inc/SURFACE.h) can be used
372                instead of new field kTopC
373              + can we use topoFile, Ro_surf and existing code in ini_depth.F
374                instead of new field R_shelfIce and new code in ini_depth.F
375                and ini_mask_etc.F?
376              + adjust vertical mixing schemes?
377    o seaice pkg:
378     - add a cpp-flag to include a simple formula for a salinity dependent
379       freezing point of sea water at the surface
380     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
381       meridional stresses are now different (and hopefully correct)
382    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
383       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
384       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
385    o pkg/diagnostics: add options and parameters for regional-statistics
386       diagnostics ; define regions by reading a region-mask from a file
387       (might add other options later)
388    o pkg/bulk_force:
389     - add option and parameters to use AIM surface-flux formulae.
390     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
391       others forcing fields (defined in PARM05, parameter file "data") are loaded
392       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
393     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
394     - use the right EXCH call for uwind,vwind (to work on CS-grid).
395     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
396       and parameters (note: calcWindStress replaces .NOT.readwindstress).
397     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
398    
399    checkpoint58
400    o add "--embed-source" option to genmake2 which, when the supporting
401      tools can be compiled (as determined by genmake2) will turn on the
402      embed_files package which then embeds the entire MITgcm source code
403      (*.[fFhc] + Makefile) used for the build within the executable
404      - requested by CNH but off by default
405      - adds a paltry <9MB to the mitgcmuv executable in most cases
406      - only writes the output when useEMBEDSRC in eedata is true
407    o clean up 3-dim. relaxation codes:
408      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
409      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
410      * Thanks to Tom Haine for testing!
411    
412    checkpoint57z_post
413    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
414      affects output (@ truncation level) of exp. plume_on_slope ; updated.
415    o fix the pickup behavior for obcs in combination with ptracers
416    o fix a bug in ptracers_external_fields_load
417    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
418      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
419    o transfered surface NH pressure to eta field (if exactConserv).
420    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
421         and update lab_sea output.txt file.
422    o completing 3-dim. relaxation code: additional term
423         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
424      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
425      * At compile time, in "EXF_OPTIONS.h" set
426          #define  ALLOW_CLIMTEMP_RELAXATION
427          #define  ALLOW_CLIMSALT_RELAXATION
428      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
429          tauThetaClimRelax3Dim = 15552000.0,
430          tauSaltClimRelax3Dim  = 15552000.0,
431      * 3 cases:
432          1) Use a constant-in-time 3-dim. field
433          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
434          3) Real-time relax. to time-evolving prescribed field
435    o Adding Laplacian-type smoothness constraint on
436      initial and boundary (forcing) controls (ic, bc)
437      * enable at compile-time via
438        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
439      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
440      * Absolute scale somewhat unclear so far
441      * no area weighting was included since no other cost term does so far
442    
443    checkpoint57y_post
444    First step for a NLFS adjoint
445    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
446    o new init. routines for calc_r_star, calc_surf_dr
447    o still need to deal with ini_masks_etc
448    o testreport seemed happy
449    checkpoint57y_pre
450    
451    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
452    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
453    o add new offset feature to offline pkg (plus minor cleanup)
454    o cfc fixes for final year of integration
455    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
456      be in GCHEM_OPTIONS).
457    
458    checkpoint57x_post
459    o fix testreport Pb in multiple test experiment.
460    o cleanup our namelist syntax in verification:
461      - make it more F95 standards compliant (some work still needed)
462      - allows the vast majority of our tests to work with gfortran
463    o Non-Hydrostatic:
464     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
465     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
466    o Allow to apply AB on T,S rather than on AB(gT,gS):
467     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
468     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
469       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
470     - need a "clever" read_pickup to restart from the other AB formulation
471    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
472    o remove some unused variables (reduces number of compiler warnings)
473    o adjoint
474      * Disable useVariableViscosity for adjoint for time being
475        (there are a number of extensive recomputations)
476      * Initialize certain variables needed for adjoint
477    
478    checkpoint57w_post
479    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
480                 fix the singleCpuIO RS version of MDSWRITEFIELD
481       and add a WARNING if using globalFiles=T with multi-processors.
482    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
483      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
484    o tracer advection scheme:
485      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
486       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
487       was not very convenient).
488      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
489       (further tests needed for the implicit DST & Flux-Limiter schemes).
490    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
491      and sRef for convenience, handy, when you want to initialize
492      ptracers in a large domain with a constant non-zero value. Also,
493      untangle ptracers_init.F a little.
494    
495    checkpoint57v_post
496    o change dome exp. to use variable viscosity in side-drag terms.
497    o remove all the files from the cfc_offline test since they are now
498      incorporated into tutorial_cfc_offline which has been producing
499      identical results for a few days of testing
500    o add new parameter: sideDragFactor to enable half-slip-side BC
501      and change side-drag S/R to use viscosity from mom_calc_visc
502      (can switch back by setting sideDragFactor=0.); affects results at
503      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
504       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
505    o vorticity & strain are now computed without masking, to account for
506      no-slip-side BC in variable viscosity calculation ; mask is applied
507      anyway later on, before computing advection/coriolis terms.
508    o modify exp4 to test new obcs support for reading from external files
509      and for passive tracers
510    o fix behavior of ptracers_monitor when monitor output is written to a
511      netcdf-file; still not independent of monitor.F (writes in the same
512      file).
513    o change default value of tRef (put a uniform, meaningful value for ocean
514      & atmos) and initialize sRef (was missing, as Martin mentioned).
515    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
516      to be proportional to enstrophy dissipation length.  Thus,
517       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
518      This is now consistent with Smagorinsky and with the manual.
519    
520    checkpoint57u_post
521    o OBCS and PTRACERS: add open boundary support for passive tracers
522      - either use homogenous (pseudo) v.Neumann conditions or prescribe
523        OB-values from file; this is not different from the way theta and salinity
524        are treated
525      - however, Orlanski-radiation conditions are not supported, and the model
526        will stop if you use pTracers and Orlanski at the same time.
527      - beefed up the rountine obcs_external_fields_load: now only those open
528        boundary values are overwritten with values from files for which there
529        are really files, otherwise the OB-fields remain untouched. This makes
530        it possible to use different OBs at different ends of the domain (as
531        with EXF)
532    o reduce number of exch calls in shap_filt (s2).
533    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
534      truncation level) 4/5 MLAdjust test results (11&12 digits match).
535    
536    checkpoint57t_post
537    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
538    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
539      same truncation, independent of the face number: affects affects several
540      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
541    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
542      note that biharmonic viscosity + no-slip was not tested in any experiment.
543    o fix bug in non-linear free-surf side-drag ; generate new output for
544      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
545    o make mnc honor the writeBinaryPrec flag for most kinds of output
546    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
547    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
548      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
549    o add brackets in multi-terms sum to get same truncation, independent of
550      the face number (manage to get exactly same value of gU,gV at the cs-edge)
551      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
552    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
553      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
554      a maximum grid-scale Reynolds number.  Also, changes all length calculations
555      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
556      Suggested values of viscosity parameters found in mom_calc_visc.
557      Many new viscosity diagnostics available.
558    
559    checkpoint57s_post
560    o Add clearing-house for viscosity calculations, mom_calc_visc and
561      correct numerous bugs in LeithD and Smagorinsky discretizations.  
562      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
563      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
564      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
565      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
566      The Strain-Tension form is now called with useStrainTensonVisc=.true.
567      ViscAhStrain and viscAhTension are now retired.
568    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
569    o In response to JMC's bug report, genmake2 now ignores any soft-links
570      that it finds in the *current* directory when searching for files.
571      Soft-links found in any other source directories will still work as
572      they did before.
573    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
574      a C routine to unlimit the stack size
575    o mnc-ify pkg/aim snapshot vars
576    o mnc-ify pkg/land as requested by Daniel
577    o various changes to mnc including:
578      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
579      - output can now be grouped so that all files within a group
580          change the ITER portion of their names in lock-step together
581      - can now read ("global") PER-FACE (in addition to PER-TILE) files
582          and works with both EXCH1 and EXCH2 (but needs more testing)
583      - writing works for all verification test cases w/ g77 on Linux
584    
585    checkpoint57r_post
586    o make MNC variable initialization happen earlier
587    o add diagnostics for (almost) each term of the momentum Eq.
588    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
589    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
590    o remove MINIMAL_TAVE_OUTPUT option ;
591      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
592    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
593      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
594    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
595    o add time-dependent SST, SSS control
596    o cost terms in ecco/ modularized (new cost_generic.F)
597    o cost_averages routines are modularized (new cost_averagesgeneric.F)
598    o new infrastructure for seaice model vs. obs misfits in seaice/
599      * driver from the_main_loop.F is seaice_cost_driver.F
600      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
601      * gradient check in Exp. 6a of natl_box_adjoint/
602    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
603      (see README file)
604    
605    checkpoint57q_post
606    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
607    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
608      - bug was reported by Jean-Michel and Ian Fenty
609    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
610      update exp. cpl_aim+ocn output.
611    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
612      Needed for high-res. runs with large global files
613      to be able to limit tapelev size
614    o Changed some tests for adjoint:
615      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
616      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
617      * global_ocean.90x40x15/ back to default 3-level checkpointing
618    o Modifications to enable scripted COMMON to MODULE conversion
619      * verification/OpenAD/code/ has necessary scripts and description;
620      * converts, compiles and runs successfully;
621    
622    checkpoint57p_post
623    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
624    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
625      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
626    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
627    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
628      (was already the case for dissipation with mom_vecinv,
629       and also the case for grad.PhiHyd when staggered-timeStep)
630      This will allow to put dissipation out-off the AB time-stepping.
631     Unfortunately, affects truncation error. Update output of exp. that "fails"
632      (cg2d matching number) and leave the others for later: front_relax(10),
633      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
634      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
635    
636    checkpoint57o_post
637    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
638      (2) its ready to be documented during the 20050801 DocFest
639    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
640      for ideal_2D_oce and lab_sea on linux_ia32_g77
641    o set to #undef CTRL_SET_OLD_MAXCVARS_30
642      in global1x1_tot/code_seaice_adj to access indices 32, 33
643      (worth another tag)
644    
645    checkpoint57n_post
646    o adding precip control xx_precip 32
647    o adding swflux control xx_swflux 33
648    o Replacing 10 forcing penalty cost routines by 1 generic.
649    o Implementing partitioning in time-mean and variable adjustment
650      for atmos. state.
651    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
652    o in natl_box_adjoint:
653      * updated exp 1 to 10
654        (but does not have time-mean vs. variable split results yet)
655    o updated global1x1/*_seaice_adj/
656      to incorporate latest changes
657    o enable useSingleCpuIO for mdsio vector routines
658      (applies in particular to tapelev I/O)
659    o removed inefficient K-loop in all active_file*control*.F
660    
661    checkpoint57m_post
662    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
663      and advect_cs (use EXCH-2 and standard cs-32 grid files).
664    o pkg/exch2: filling of face-corner halo regions is optional
665      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
666    
667    checkpoint57l_post
668     tag before updating tutorials (pre-release-2)
669    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
670       for output and interpolation of input fields onto model grid)
671    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
672       Affects results of exp. rotating_tank ; update output.txt.
673    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
674          and taking the square quantity and/or using a fraction-weight field.
675    o fix aim_diagnostics_init.F mate numbers.
676    o add mnc output capability to diagnostics/diagstat and update
677      our cvsignore files for the ACSII output generated
678    
679    checkpoint57k_post
680    o lab_sea now uses diagnostics package and provides a suite of
681      new EXF diagnostics output.
682    
683    checkpoint57j_post
684    o exf
685      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
686        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
687        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
688      * extended diagnostics output
689        - now includes all EXF variables
690        - hs, hl moved to common block
691        - separate S/R for diagnostics, called after ctrl vector is added
692        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
693        - EXFqnet contains true Qnet (i.e. includes qsw)
694      * updated verif. lab_sea, global_with_exf
695      * Rearranging hflux (exf_mapfields -> exf_getforcing)
696        to ensure that diagnostics sees a true EXFqnet
697    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
698    o diagnostics pkg: change pointers so that 1 diagnostic can be used
699      several times with different frequencies.
700    o mnc-ify the thsice package as requested by Daniel Enderton
701      - the monitor--MNC output needs work
702      - many attributes need to be added (most are currently blank)
703    o mnc-ify theaim_v23 package as requested by Daniel Enderton
704      - many attributes need to be added (most are currently blank)
705    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
706    o add Sadourny like discretization to the 4th.O vorticity advection scheme
707    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
708      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
709         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
710    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
711     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
712    
713    checkpoint57i_post
714    o Diagnostics package was changed: diagnostic allocation is now deactivated
715      by setting an empty file name in the namelist (used to be by setting 0 frequency)
716    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
717      add 1rst Order upwind vertical Shear.
718    o add a quick fix for A/B checkpointing in OFFLINE mode
719    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
720      end-run around the C/Fortran linking horror in eesup/src/timers.F
721    o added pkg/runclock: allows user to terminate run based on wall clock
722    o added non-hydrostatic scaling parameter: nh_am2
723    o pkg/my82: futile attempt to make results compiler-independent by adding
724      some "_d 0", etc. no effect.
725    o for mnc output, fill the 'T' coordinate var with myTime and create a
726      separate 'iter' variable for iteration count
727    o pkg/diagnostics:
728      add new capability: output of Global/Regional & per-level statistics ;
729      tested against monitor output (including land & thSIce) on various exp.
730    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
731    
732    checkpoint57h_done
733      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
734      data.diagnostics, data.gchem, data.ptracers) is done.
735    
736    o pkg/diagnostics: prepare for Global/Regional statistics.
737      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
738    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
739      and rename it: DIFFERENT_MULTIPLE
740    
741    checkpoint57h_post
742    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
743    o pkg/diagnostics: change output frequency, now in seconds (instead
744      of Nb of iterations). This requires to change data.diagnostics.
745    checkpoint57h_pre
746    
747    o in mnc, let the user create the output dir if both mnc_outdir_date
748      and mnc_outdir_num are false
749    o add fflags() to pkg/diagnostics which allows one to specify, on a
750      per-file basis, the file precision [default behavior is unchanged]
751    o added diagnostics to pkg/kpp, including computation of mixed layer
752      depth based on a temperature/density criterion
753    o updated verification/natl_box to test the new pkg/kpp diagnostics
754    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
755    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
756    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
757      not mnc -- this mistake was found by JMC and is now corrected
758    
759    checkpoint57g_post
760    o add Adams-Bashforth 3rd Order time stepping:
761      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
762      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
763    checkpoint57g_pre
764    
765    o make lambda[Theta,Salt]ClimRelax spatially varying
766      (default remains spatially uniform constant based on tau)
767    o added new control variables
768      * init. uVel, vVel, etanN
769      * lambda[Theta,Salt]ClimRelax
770    o separate masks used for ctrl_pack/unpack 'from write_grid' output
771      (suggested by G. Forget)
772    
773    checkpoint57f_post
774    o add parameter "baseTime" = model base time = time at iteration zero
775      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
776      account for baseTime shift
777    o move Coriolis arrays from PARAMS.h to GRID.h
778    checkpoint57f_pre
779    
780    o mnc-ifying the seaice package
781    o introduced an alternative length scale calculation for use in the limiting
782      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
783    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
784    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
785      as well as grad(vort3).  Made it compatible with both approximate form
786      for the cubed sphere and full form of these gradients.  Added flag
787      useFullLeith to select between approximate and full form.  
788    o add "d0" in getcon.F to reduce differences between compilers/platforms
789      update output.txt of exp. fizhi-gridalt-hs
790    o change port_rand funtion to allow to set the seed.
791    o fix obscure MNC bug involving conversion between reals and integers
792      - it caused no problems with certain (eg. gcc, ifc) compilers but the
793        new version is now more standards-compliant
794    o adjoint-related modifications
795      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
796      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
797      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
798    
799    checkpoint57e_post
800    o Adding eddy stress controls a la Ferreira et al.
801    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
802    
803    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
804      update output.txt of exp. fizhi-gridalt-hs
805    o add more "Z" dimensions and associated coordinate vars to MNC
806    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
807    o parameter calendarDumps: when set, approximate months (30-31 days) and years
808      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
809      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
810      months and years.  Requires pkg/cal.
811    o diagnostics: add pickup functionality
812      - off by default for backwards compatibility
813      - current version only uses MDSIO -- MNC will be added
814    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
815    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
816    
817    checkpoint57d_post
818    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
819    o modify verification/ideal_2D_oce so that it tests the creation of mnc
820      output from the diagnostics package
821    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
822    o make genmake2 more portable by using ".$FS" instead of ".f" for more
823      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
824    o add coordinate variables to the MNC output from the diagnostics package
825    o change MNC-flags default value: true when useMNC=TRUE
826    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
827      the ability (off by default) to read the grid information using MNC
828    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
829    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
830    o do snap-shot diagnostics at the middle of the time-interval (instead of
831      at the end).
832    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
833      new test for AIM with thSIce + slab-ocean
834    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
835    o move state variable diagnostics to the beginning of the time step ;
836      (note: still needs some work specially for snap-shot diagnostics)
837      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
838    
839    checkpoint57c_post
840    o Change testing option (-ieee) to get closer agreement between g77 & ifort
841    o generate new output.txt files on faulks with g77 & the new -ieee option
842    checkpoint57c_pre
843    
844    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
845      update output.txt of exp. global_ocean.90x40x15
846    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
847      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
848    o add saltFlux(+File) forcing capability with periodicExternalForcing
849    o allow to use pkg diagnostics for GM-Redi & ThSIce output
850    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
851    o improvements for the MNC output from DIAGNOSTICS:
852      - correct handling of the unlimitied dimension
853      - all dims now have associated coordinate variables
854      - variables located at U, V, and Corner ("Z") points are now written
855        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
856        *all* data points are output
857    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
858    o added pkg/seaice/seaice_monitor.F
859    o mdsio_readfield.F can now read files visible only to master MPI process.
860    o pkg/seaice: some test code for ice-modified ocean stress
861    o exf_getffields interpolation defaults to bilinear for all scalar forcing
862      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
863      spurious negative numbers for precipitation and humidity.  Will cause
864      some small numerical differences for integrations using pkg/exf/exf_interp.F.
865    o pkg/ctrl/
866      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
867        May be enabled via doPackDiag
868      *  introduce z-scaling of
869         + gradient (doZscalePack) and
870         + control (doZscaleUnpack)
871    o pkg/mdsio/
872      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
873      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
874    
875    checkpoint57b_post
876    o simplify options in diagnostics_fill arguments (remove weird combinations)
877    o fix MNC coordinate variables so that they now contain per-face index
878      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
879      general, EXCH2 grids are only aligned to a "local" coordinate system
880    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
881    o Implement instantaneous output within pkg diagnostics:
882      setting a negative frequency in data.diagnostics produces
883     "snap-shot" output (as opposed to time-average if freq > 0)
884    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
885      NOTE: change ptracer diagnostics name: use 2 characters to work with
886            more than 9 tracers. Add also diagnostics of advect & diffus flux.
887    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
888      becomes the coordinate variable for the 'T' dimension
889    o add CF-style coordinate variables to MNC
890      - just a first cut:  numbers are meaningless on the cubesphere and
891        missing along the T axis but otherwise it works!
892    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
893    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
894    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
895      this is based directly on what the model compute, so that the content of
896      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
897    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
898    o clean up build options files for SunOS, in particular
899      - remove -traditional from xmakedepend
900      - change -xarch=v9 to -xarch=native for f77
901      - restore use of make (not gmake)
902      - add CC=gcc if using g77
903    o changes per discussion of AM, JMC, & EH3 today:
904      - move redundant "grid" variables out of "state" -- in preparation of
905        creating proper CF-style coordinate variables and in recognition
906        that any/all grid variables can be easily copied (eg. w/NCO) from
907        the grid files into any of the other NetCDF files
908      - *always* output grid variables with MDSIO (this will eventually be
909        changed)
910      - output MNC grid file if useMNC is true
911    o every instance of _END_MASTER() has been found and replaced with
912      _END_MASTER( myThid ) in order to satisfy certain picky Sun
913      preprocessors
914    o re-arrange diagnostics pkg initialisation:
915     - allow each package to extend the available diagnostics list
916     - add some checking and fix small problems (multi-threaded, ...)
917     - new S/R diagnostics_fill (replace fill_diagnostics):
918       look through the short list of active diag. (instead of the long list)
919       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
920    
921    checkpoint57a_post
922    o this set of changes restores TAMC compatibility
923      tested for global_ocean.90x40x15 adjoint on trough
924      (what a pain)
925    
926    checkpoint57a_pre
927    o some modifs in tools/build_options for sunos
928    o call ctrl_pack for ctrl at end for optimcycle=0
929    
930    checkpoint57
931    o add horizontal bi-harmonic viscosity for vertical velocity
932      - new parameter viscA4W (defaults to viscA4)
933      - affects only non-hydrostatic code
934      - to be done: no-slip lateral boundary conditions
935    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
936    o implement Implicit Vertical advection for pTracers
937    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
938      (implemented also for implicit vertical diffusion & advection)
939    o OBCS: extend application of tracer open boundary conditions
940      to a strip beyond the boundary of width Olx/Oly
941    o add call monitor to TAF set of required calls (flow directives)
942      and include in natl_box_adjoint
943    o untangle a few ifdefs related to cost, ctrl, autodiff
944      untangel a few ALLOW_ECCO_OPTIMIZATION
945    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
946      (theta2, salt2 in ecco_cost_weights)
947    
948    checkpoint56c_post
949    o OBCS as control variables
950      - update ctrl_ad_diff.list, obcs_ad_diff.list
951      - remove balance of obcs controls from default
952      - fix index bug nobcs in ctrl_init
953      - fix dummy fields filen in ctrl_pack
954      - add dummy weights for obcs
955    o lsopt: comment out fort.94 output
956    o optim:
957      - remove unnecessary header files
958      - adjusted namelists
959      - add xerbla.F to Makefile
960    o exf:
961      - multiple modifications of exf_check_range
962      - unit change in exf_init_runoff from [m/year] to [m/s]
963    o mdsio:
964      - i/o-vector change debugLevel from debLevA to debLevB
965    
966    checkpoint56b_post
967    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
968      is called from DO_THE_MODEL_IO
969      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
970      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
971      - clean up PTRACERS_WRITE_TIMEAVE a little
972    o add another verification experiment that tests both the cfc-pkg and
973      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
974      reactive tendencies treated inline with regular timestepping
975    o testreport previously did a lousy job of comparing small numbers, so
976      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
977      implemented in the little c-progam tmp_cmpnum.c which is embedded in
978      testreport.
979    o ptracers_monitor: bug fix for MPI
980    
981    checkpoint56a_post
982    o GCHEM: finish reorganizating the package
983      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
984        (introduces another 3D-array for each passive tracer, but only if
985        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
986        gchemTendency is not needed because the timestep is done separately)
987      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
988      - GCHEM is now---more or less cleanly---separate from PTRACERS
989      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
990        so clear to me how that should be done in a general way.
991    o CFC: improve formatting of output in CFC_ATMOS
992    o PTRACERS:
993      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
994        that ALL experiments with ptracers enable can be checked. This makes
995        GCHEM_MONITOR obsolete.
996      - include a runtime parameter PTRACERS_monitorFreq that defaults to
997        monitorFreq
998      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
999    o add PTRACERS (PTR0[1-5]) to testreport output
1000    o exf_check_range:
1001      * default changed to .TRUE.
1002      * will check values for niter0 if debLevA, every timestep if debLevB
1003      * STOP in exf_check_range if 'out of range'
1004      * range chosen generous to allow for potential extema
1005      TBD: a version with stricter range
1006           permitted range would be runtime parameters
1007    o GMredi:
1008      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1009      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1010      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1011    o GCHEM:
1012      - move call to GCHEM_FORCING_SEP, so that it is now called before
1013        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1014      - introduced a useGCHEM runtime flag and applied it everywhere.
1015      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1016        this flag is now only visible within GCHEM-pkg routines.
1017      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1018        be replaced by a 3D array that is computed before thermodynamics; for
1019        this, the tracer ID iTracer had to be included into the parameter list
1020        of ptracers_forcing
1021      - set up forward_step to call gchem_forcing, that will replace
1022        gchem_forcing_int in ptracers_forcing
1023      - cleaning up
1024    o small cleaning of exch2: remove files that are also in eesupp/src
1025    
1026    checkpoint56
1027    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1028    o mnc: cleanup "full" files--fixes out-of-memory problem
1029    o ECCO-GODAE
1030      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1031      * fully merged and updated from SIO code
1032        windstress sign change affects
1033        - exf_inscal_[u/v]stress
1034        - sign of xx_tau[u/v] adjustments
1035        - signs in cost_scat
1036      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1037      * natl_box_adjoint updated and compressed
1038      * 2-level checkpoint switch added
1039        (tested in EXP. 1 of natl_box_adjoint)
1040      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1041    o SVD
1042      * first complete, non-hacked version for SVD calculations
1043      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1044        performed via direct access files admtlm_vector.it????
1045        (via ctrl_[un]pack)
1046      * optimcycle is used for ARPACK iteration counter
1047        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1048      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1049        and add linear transforms where necessary
1050      * controls are initial/final SST, SSS (can be extended; need to check
1051        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1052    o mdsio: filename info to both stderr, stdout
1053    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1054      from sign change
1055    
1056    checkpoint55j_post
1057    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1058      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1059    o add consistent build directories and .cvsignore files to verification
1060    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1061    o make all subroutines 30 or less characters in length for certain older
1062      compilers to work (a thorough search only turns up two routines in
1063      pkg/ptracers)
1064    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1065      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1066    
1067    checkpoint55i_post
1068    o change arrays for total vertical diffusivity (2.D if explicit,
1069      3.D if implicit) ; each ptracer uses its own background value.
1070    o added mnc/NetCDF output capability to ocn_compon_interf
1071      - added bits to verification/cpl_aim+ocn so that it can run on
1072        ITRDA and other clusters without the mpirun "-wd" option
1073    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1074      configuration
1075    o give MNC the ability to create additional files rather than
1076      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1077      - the default is just less than 2GB which is a practical limit
1078        on many systems
1079    o Compute the non-local term using either KPP vertical diffusivity (=default)
1080       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1081    
1082    checkpoint55h_post
1083    o add verification test "vermix"
1084    o remove all the *_ioinc flags and replace with the single global
1085      outputTypesInclusive flag
1086    o allow to set a vertical profile of vertical diffusivity for T & S
1087    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1088    o useMNC moved from data.mnc to data.pkg
1089    
1090    checkpoint55g_post
1091    o Renaming carbon AD experiments to comply with testreport conventions
1092    o Updating adjoint of Held-Suarez hs94.1x64x5
1093    o Fixing directives for non-ECCO forward_step, after ECCO directives
1094      have been fixed to avoid recomp. of do_oceanic_phys
1095      Works well for global_ocean.90x40x15,
1096      but recomp. issue remains for carbon
1097    o Updating adjoint output for natl_box_adjoint after
1098      pkg/ecco has been modified (see taga c55d_post)
1099    
1100    checkpoint55f_post
1101    o rename to timeave_init_fixed
1102    
1103    checkpoint55e_post
1104    o some delicate re-shuffle of store directives to avoid one
1105      extra call of do_oceanic_physics
1106      affects ecco_the_main_loop.F, do_oceanic_physics.F
1107      checkpoint_lev1_directives.h
1108    o NB: this may break global_ocean adjoint temporarily,
1109      but it is clear how to fix it. Will do later, need this now.
1110    
1111    checkpoint55d_post
1112    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1113    o ecco_cost_weights is modified to 1x1 runs
1114    o modifs to allow observations to be read in as
1115      single file or yearly files
1116    o enable to read exf forcing fields as either
1117      single file or yearly files (flag useExfYearlyFields)
1118    checkpoint55d_pre
1119    
1120    o switch between 2-level and 3-level checkpointing
1121    o add ability of MNC to write local and "partial" (eg. 2D slices where
1122      the full 3D field is never actually stored) arrays to NetCDF files
1123      with the correct (that is, the complete multi-dimensional) set of
1124      array indicies
1125      - used in mom_vecinv() to write the diagFreq output
1126      - tested (demonstrated) in verification/aim.5l_cs
1127    o further mnc-ification
1128      - add verification/lab_sea to the list with mnc setups
1129      - fix undefined mnc v-names in cd_code
1130      - add kpp to mnc output (both snapshot and timeave)
1131    o non-hydrostatic code
1132      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1133        in calc_gw.F
1134      - defaults to viscAh
1135      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1136        friction or Leith) in non-hydrostatic mode, as long as there is
1137        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1138    o pkg/cost
1139      extend simple cost functions to treat time mean quantities
1140      (T,U,V) via cost_accumulate_state from cost_tile
1141    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1142        be 2 times larger than the minimum size the advection scheme requires.
1143        now get a perfect conservation of salt in advect_cs test-exp (updated)
1144    o GGL90 (Gaspar's TKE mixed layer)
1145      - add horizontal diffusion of TKE, requires exchanges in
1146        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1147        default. In OPA there is no horizontal diffusion of TKE but the
1148        mixing coefficients are computed from a horizontal average of TKE of
1149        6 points or so. I think that diffusion has a little more physical
1150        justification.
1151      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1152        was in vain)
1153      - mask tke-variable in ggl90_init
1154    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1155    o fix biharmonic diffusion on CS-grid.
1156    o more obcs stuff
1157      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1158        for reading boundary values. This routine is called from
1159        obcs_prescribe_read
1160      - updated obcs_check
1161      - changed sponge layer relaxation parameter units for days to seconds
1162      - turned off sponge layer by default
1163      - changed argument list of OBCS_CALC to myTime+deltaTclock
1164      - fixed about 35 bugs in obcs_external_fields_load
1165    
1166    checkpoint55c_post
1167    o obcs stuff
1168      - new runtime flags useOBCSprescribe, useOBCSbalance
1169      - re-arranged obcs_calc
1170      - moved exf_getobcs to obcs_prescibe_read
1171        obcs_prescibe_read is called after ORLANSKI stuff
1172        and independent of it (executable can contain all).
1173      - updated obcs_check
1174      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1175        These may be necessary only if tangential velocities are
1176        prescribed at OB, not sure, needs testing.
1177    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1178      which simplifies the calls and passes the ifc check-bounds test
1179    
1180    checkpoint55b_post
1181    o add a 2D scalar, Z location, exchange_2 routine.
1182    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1183      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1184      affects advect_cs results (for the wrong reason): update output.txt
1185    o use a more standard discretization for biharmonic viscosity ;
1186     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1187      affects results of dome set-up: update output.txt
1188    o fix gad_advection.F (CubedSphere part), back to version 1.23
1189    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1190    
1191    checkpoint55a_post
1192    o merged code to
1193      * prescribe/read time-dependent open boundaries
1194        (works in conjunction with exf, cal)
1195      * sponge layer code for open boundaries
1196      * each boundary N/S/E/W now has its own CPP option
1197        (healthy for the adjoint)
1198    
1199    checkpoint55
1200    o up-to-date adjoint of previous breaks
1201      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1202      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1203      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1204      - carbon: * remove tr1-related adjoint verification
1205                * add ptracer as control variable
1206    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1207      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1208    
1209    checkpoint54f_post
1210    o in verification/carbin/ remove experiment related to
1211      ALLOW_PASSIVE_TRACER (array tr1 etc)
1212      code_ad/ input_ad/ results_ad
1213    
1214    o add two new packages
1215      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1216        + subject to optimization (memory)
1217      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1218        + subject to reordering (many GOTOs in the original code)
1219        + so far opps is called for every (i,j) point, and then operates in
1220          the vertical; one may want to reorder the scheme in order operate in
1221          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1222          fields)
1223    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1224      - all verification tests compile and run with linux_ia32_g77
1225      - defaults are compatible with current input files--nothing
1226        should change if you were not previously using MNC
1227      - MNC output has been added in numerous places (eg. timeave)
1228        but there are still a few writes not yet do-able with MNC
1229        (this is in progress)
1230      - flags now allow for either/or/both use of MDSIO and MNC and
1231        documentation will soon follow
1232      - numerous small formatting cleanups for ProTeX
1233    o add version info (via BUILD_INFO.h) to MNC and stdout
1234    
1235    checkpoint54e_post
1236    o add two new packages
1237      - pp81 (Packanowski and Philander, 1981), Richardson number and
1238        stratification dependent mixing
1239      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1240      - these scheme operate in a similar manner as KPP (without ghat, of
1241        course), however there is only one diffusivity that is used for both
1242        temperature and salinity (and passive tracers)ç
1243    o add offline package
1244    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1245      provided by Stephanie Dutkiewicz
1246    o genmake2: add ability to search for C compilers and cleanup test output
1247      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1248    
1249    checkpoint54d_post
1250    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1251    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1252      leading to additional shift by 5 days each year of integration
1253       (i.e. leading to considerable offset over the years)
1254    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1255    o start with no AB and no initial filtering (staggerTimeStep):
1256      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1257    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1258      (external loading & cpl import/export stay in forward_step.F)
1259    o update coupling interface to work with new staggerTimeStep
1260    o change MDSIO ptracers_pickup.
1261    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1262    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1263    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1264    
1265    checkpoint54c_post
1266    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1267      this affects (truncation error) output.txt of test-exp:
1268       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1269    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1270    o change Qnet to always be the net heat flux, (+upward).
1271      affects (truncation error) output of natl_box exp.: updated
1272    o define the max number of passive tracers in PTRACERS_SIZE.h
1273    o start to test mnc routinely in exp0
1274    o add sea-ice loading (sIceLoad) as a new forcing field.
1275    
1276    checkpoint54b_post
1277    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1278       impressive on Altix and Opteron systems)
1279    o diagnostics can now write NetCDF files through the mnc package
1280    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1281    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1282    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1283      affects (truncation error) output of lab_sea & natl_box exp.: updated
1284    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1285    
1286    checkpoint54a_post
1287    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1288    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1289    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1290    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1291      + internal_wave (shift in writing cg2d_ini_res)
1292    checkpoint54a_pre
1293    
1294    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1295      - modified verification/lab_sea and natl_box_adjoint accordingly
1296    
1297    checkpoint54
1298    checkpoint53g_post
1299    o prepare splitting of thermodynamics: store convect.counter in common block
1300    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1301      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1302    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1303    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1304    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1305    o restore adjointability
1306    
1307    checkpoint53f_post
1308    o modifications that affect AIM experiment results (update output.txt):
1309      - no advection of S at top interface Nr (pkg/generic_advdiff)
1310      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1311    o AIM pkg:
1312      - include stability function into surf.Flux derivative relative to Tsurf
1313      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1314    
1315    checkpoint53e_post
1316    o merged cylindrical coord configuration
1317    o added rotating_tank experiment
1318    checkpoint53e_pre
1319    
1320    checkpoint53d_post
1321    o faulks upgraded: re-generate output.txt that have changed:
1322       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1323    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1324    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1325    o added Sadourny discretization of Coriolis
1326      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1327      - re-enabled use of omega3 (useAbsVorticity)
1328    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1329      vector-invariant equations
1330      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1331    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1332      hopefully without new bugs
1333      - still to do: biharmonic friction for non-hydrostatic w
1334    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1335    o regenerated output for global_ocean_ebm (using -ieee)
1336    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1337      of mom_common/
1338      - simple re-arrangement of instructions within computing loop
1339    checkpoint53d_pre
1340    
1341    checkpoint53c_post
1342    o new version of coupler for AIM+thSIce and Ocean models
1343     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1344     - land: change Evaporation of snow
1345     - aim with thSIce: fix bug in snow-precip.
1346    o changes to calc_gw.F
1347     - bug fix for w^2 term near the bottom boundary
1348     - (hopefully) improve the lateral slip boundary condtions for use with
1349        partial/looped cells
1350      - because the bug fix changes two verification experiments anyway (exp5
1351        and plume on slope), change the lateral boundary condition from half slip
1352        to the value of no_slip_sides
1353    o ebm package wasnt quite up to the parallel task. Fixed that.
1354    o Adjoint of EBM package + verification
1355      * TLM OK
1356      * ADM not sufficient accuracy yet (needs further testing)
1357    
1358    checkpoint53b_post
1359    o Commiting new energy balance model to repository
1360      * package is pkg/ebm
1361      * verif. is verification/global_ocean_ebm
1362      * references are in ebm_driver.F
1363    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1364    C        Global thermohaline circulation. Part I:
1365    C        Sensitivity to atmospheric moisture transport.
1366    C        J. Climate 12(1), 71-82
1367    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1368    C        Global thermohaline circulation. Part II:
1369    C        Sensitivity with interactive transport.
1370    C        J. Climate 12(1), 83-91
1371    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1372    C        Destabilization of the thermohaline circulation
1373    C        by atmospheric eddy transports.
1374    C        J. Climate 7(12), 1870-1882
1375    o Will need long integration testing.
1376    checkpoint53b_pre
1377    
1378    o created pkg/mom_common in preparation for variable viscosity code
1379    o renamed and split ini_mnc_io
1380    o pkg/land: only liquid water can diffuse or run-off
1381    o AIM using land: soil wetness availability account for snow
1382    o added printMapIncludesZeros to EEPARMS namelist
1383    
1384    checkpoint53a_post
1385    o restore TAMC compatiility for exf_constants.h
1386      (no usage of _d in .h)
1387    o Additional storing in KPP in an attempt to fix
1388      TAMC problem with adjoint of KPP code.
1389      (no success...)
1390      Identical code works fine with TAF.
1391    o Fixed verification/natl_box_adjoint experiments.
1392      Initial conditions for Experiments 4 and 5 are now
1393      set to "SEAICE_initialHEFF=0", which is more reasonable,
1394      and hence gives results closer to that of Experiment 2.
1395      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1396    
1397    checkpoint53
1398    o stable checkpoint with up to date adjoint
1399      TLM tests only run for 1st grdchk at the moment. Its unclear if
1400      this is a code problem or a problem with resetting code for g_
1401      variables that is being autogenerated wrong.
1402      Otherwise:
1403       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1404       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1405         are both still in chaos following their security messes.
1406    
1407    checkpoint52n_post
1408    o various build (mostly genmake2) changes including:
1409      - ability to build/run more easily within Cygwin and MacOS X
1410      - more complicated Makefiles with a stronger dependence on Gnu Make
1411    o pkg/seaice modifications
1412      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1413        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1414        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1415      - changed proxy for geostrophic velocity and updated
1416        verification/lab_sea/results/* accordingly
1417      - removed ADI dynamic solver from pkg/seaice
1418      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1419        they caused a segmentation fault under certain circumstances
1420      - removed unused field WATR
1421    o bug fix in exf-package:
1422      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1423         now reflect that.
1424    o small fixes in the cal-package:
1425      - set reference date to first of January for the 'model'-calendar
1426      - failing of cal_CheckDate in cal_FullDate now actually results in a
1427        warning
1428    o small modifications in exf-package to increase flexibility:
1429      - change climtempfreeze from a constant to a runtime parameter that
1430        is specified in data.exf_clim (default = -1.9)
1431      - introduce runtime parameter windstressmax (default = 2.0) that is
1432        specified in data.exf
1433    o fix in pkg/thsice:
1434      - update Evap (Tsf changes) to be consistent with Latent heat flux
1435      - maintain snow precipitation unchanged (even if Tsf >=0).
1436     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1437    
1438    checkpoint52m_post
1439    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1440      this does not change any of the results, because myIter=0 in swfrac always
1441      lead to jwtype=2 (the default anyway), but the call makes little sense
1442      as a default
1443    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1444    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1445      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1446    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1447    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1448    o extending useSingleCpuIO option to work with new exch2 I/O format
1449      - old-style, missing-tile I/O is still accessible by defining CPP
1450        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1451    o monitor package can write to NetCDF files and/or STDOUT
1452    o fix re-definition bug in MNC_GRID_INIT_ALL()
1453    o doc/api_reference added
1454      - a framework for building an API Reference Manual using all
1455        the "protex" comments embedded in the code
1456      - see pkg/generic_advdiff, pkg/mnc for examples
1457    o MNC:
1458      - make myThid the last argument for all subroutines
1459      - new default for the grid files: NO halos
1460      - add useMNC and other run-time flags
1461      - separate per-file-group handling of the unlimited dimension
1462      - early initialization of MNC w/ flags read at the eeboot stage
1463        and lookup tables set in initialize_fixed
1464      - write all MNC output to a freshly-created directory
1465    o thermodynamics sea-ice (thsice) is now tested with testreport.
1466    o test exp. advect_cs: use the standard cs32 grid ; update output.
1467    o Added functionality to grdchk:
1468      pick global i,j,k position (or nearest wet) where to perform check.
1469    
1470    checkpoint52l_post
1471    o new land formulation:
1472      a) use ground enthalpy as prognostic variable to ensure exact
1473         energy conservation.
1474      b) account for water temperature and for latent heat of freezing
1475         in all processes (rain, run-off, ground storage)
1476      c) compute surface and ground temperature implicitly.
1477    o aim_v23 modification for new land model:
1478      a) Treat separately land / ocean / sea-ice surface fluxes
1479         to allow implicit computation of land & sea-ice surface temp.
1480      b) add snow precipitation.
1481    checkpoint52l_pre
1482    
1483    o fix problem (when 1 tile is empty) in min/max monitor.
1484    o fix bug in timeAve (u,vZetatave in common block)
1485    o no restoring terms under ice for pkg/seaice
1486    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1487    o bug fix for pkg/seaice pickups
1488    o change MNC call locations and add coordinate attributes
1489    o mask vorticity at the corner ; affects global_ocean.cs output
1490    o fix ini_curvilinear_grid ; test CS experiments with mpi
1491    o aim.5l_cs: modify sea-ice fraction input file ; update output
1492    o exf: Adding simple range check routine for exf fields after read
1493    
1494    checkpoint52k_post
1495    o removed top-level directory "diags"
1496      - we migrated these functions to pkg/timeave a long time ago
1497    o fixed bug introduced in pkg/monitor
1498    o accuracy ctrlprec = 32 insuffient for gradient checks using
1499      averaged fields (I/O via cost_averages)
1500      -> use ctrl.h in active_file*.F to control I/O precision.
1501    o paramter list of CALL ADTHE_MAIN_LOOP
1502    o added initial do_the_model_io to ecco
1503    o set all ...Freq to zero after cost_final
1504      taveFreq, dumpFreq, pChkptFreq
1505    o MAIN and ECCO differentiability restored
1506    
1507    checkpoint52j_post
1508    o fix nchklev in tamc.h for global_ocean...
1509    o Bringing flow and store directives up-to-date
1510    o Really weird thing!
1511      call do_the_model_io from the_main_loop with parameters
1512      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1513      TAF places a faulty re-call of initialise_varia
1514      after cost_final call which should not be there!
1515    checkpoint52j_pre
1516    
1517    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1518      error messages
1519    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1520    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1521      debug output
1522    o modfied mdsio_writefield.F to handle non-global files under exch2
1523    o update AIM Cubed-Sphere exp (aim.5l_cs):
1524      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1525    o update AIM Equatorial Channel exp:
1526      use standard aim_v23 pkg and change the SST fields to be more realistic.
1527    o globalFile now works with exch2
1528    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1529      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1530    o limit timeave output for hi-res integrations
1531    
1532    checkpoint52i_post
1533    o removed CPP_EEOPTIONS.h from verification/*/code
1534    o updated the tiling for global_ocean_pressure
1535    checkpoint52i_pre
1536    
1537    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1538      the old pkg/aim).
1539    
1540    checkpoint52h_pre
1541    o shortened offending lines in exch2_send_rx?.template
1542    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1543    o genmake2: add build & execute test for NetCDF code
1544    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1545      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1546    o added useSingleCPUIO flag to monitor.F and mon_out.F
1547    o added temporary hack for sea-ice dynamics on the cube:
1548      metric terms are ignored and it is assumed that
1549      there is no sea-ice on cube faces 1, 2, 4, and 5.
1550    
1551    checkpoint52f_post
1552    o added exch2 cube routines to pkg/exch2
1553    o modified hs94.cs-32x32x5 to use it
1554    o added new grid files to hs94.cs-32x32x5
1555    checkpoint52f_pre
1556    
1557    checkpoint52e_post
1558    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1559      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1560    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1561      to work with implicit vertical advection and AB ;
1562    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1563    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1564     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1565    checkpoint52e_pre
1566    
1567    o fix bug in impldiff when Nr=1 or Nr=2.
1568    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1569    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1570    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1571      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1572    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1573    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1574    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1575    
1576    checkpoint52d_post
1577    o re-tiled many expts to allow comparison in multi-processor mode
1578      - updated output accordingly
1579      - changed hs94.128x64x5 to use intial T from file rather than use the
1580        random number generator
1581    o add infrastructure in model routines for fizhi and gridalt packages
1582    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1583    o changes to permit hi-res, cubed-sphere, configuration
1584      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1585      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1586      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1587        of surface winds for the cube
1588      (A verification experiment, based on global_ocean.cs32x15, but with
1589       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1590       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1591       complete with example surface forcing files and matlab scripts to look
1592       at the output and compare it with that of global_ocean.cs32x15.)
1593    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1594       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1595       to conform to the common rule.
1596    o check-in the first version of the coupler + interfaces for multi-components
1597       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1598       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1599       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1600       - ocean and atmos. share the same horizontal grid (no interpolation).
1601       - exchanges between component and coupler is done in forward_step
1602    o new verification experiment, cpl_aim+ocn:
1603       coupled ocean - AIM atmosphere on cs32 grid.
1604    
1605    checkpoint52d_pre
1606    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1607    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1608    
1609    checkpoint52c_post
1610    o Fixing OPTIONS files for use of exf:
1611      - ALLOW_ECCO not needed
1612      - ECCO_CPPOPTIONS.h should not be included from
1613        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1614        as has been the case in the past
1615      - All cal/exf related options are currently set in
1616        single header file. Should remain so until we
1617        agree on a consistent new policy.
1618    o Removed all CPP options for cal package.
1619      cal has no more CPP options.
1620    o modified STOREs in GAD_ADVECTION
1621    o corrected key comp. for passkey
1622    
1623    checkpoint52b_post
1624    o new version: "thsice" of thermodynamic sea-ice pkg:
1625     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1626     - modify fluxes but do not change theta directly;
1627     - light cleaning of bulk_force pkg (still needed with thsice).
1628     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1629       + output_thsice.txt to test thsice & bulk_force pkgs.
1630    o put back grid & coriolis monitor output.
1631    checkpoint52b_pre
1632    
1633    o call "do_the_model_io" at the beginning (=> dump initial state)
1634    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1635    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1636      (need info on NUMBER_OF_PTRACERS)
1637    o missing PTRACERS headers in some routines
1638    o default tamc.h in pkg/autodiff supposed to crash
1639      to ensure proper customization
1640    
1641    checkpoint52a_post
1642    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1643      - moved surfaceTendencyTice from pkg/seaice to main code
1644      - subroutine FREEZE_SURFACE now limits only surface temperature
1645        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1646        => new output.txt for global_ocean.cs32x15 & global_with_exf
1647      - keep the old version of FREEZE for backward compatibility;
1648        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1649      - corresponding modifs for TAF directives
1650    o added surface flux output variables to TIMEAVE_STATVARS
1651    o time-averaged output for pkg/ptracers
1652    o fix problem with ECCO-related divided adjoint
1653      snapshot file was missing some ad-variables,
1654      but no warning issued by TAF
1655    
1656    checkpoint52a_pre
1657    o some bug fixes for #undef REAL4_IS_SLOW
1658    
1659    checkpoint52 = ecco_c52_e35
1660    o after testing adjoints of checkpoint51u_post
1661    
1662    checkpoint51u_post
1663    o this is the post-merge tag of the ecco-branch
1664      (needs another clean checkout and re-testing)
1665    o various natl_box_adjoint configs and results
1666      but no input fields
1667    o obcs adjoint not yet merged!
1668    o adding ECCO global 1x1 and 2x2 degree configs
1669    o updated/extended some store directives for seaice
1670    o pkg/ecco now containes ecco-specific part of cost function
1671    o top level routines the_main_loop, forward_step
1672      supersede those in model/src/
1673      previous input data.cost now in data.ecco
1674      (new namelist ecco_cost_nml)
1675    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1676    
1677    checkpoint51t_post
1678    o this is the pre-merge tag of the ecco-branch
1679    
1680    checkpoint51s_post
1681    o cleanup: removed various obsolete #define-s
1682    o pkg/grdchk
1683      - renamed 'ph-grd 3' to 'grad-res'
1684      - merged from ecco-branch
1685        (remaining bug fixes for obcs gradient checks)
1686      - additional high-precision output for testreport
1687        (grep for 'precision_grdchk_result')
1688    
1689    checkpoint51r_post
1690    o cleaned up or removed CPP_OPTIONS.h files
1691    o updated results for some of the tests to reflect the new
1692      optfiles (-ieee: -O0 instead of -O3)
1693    
1694    checkpoint51q_post
1695    o cd_code:
1696      - moved cd_scheme.F -> cd_code_scheme.F
1697      - separate read_checkpoint from cd_code_ini_vars.F
1698      - separated cd_code part from write_checkpoint
1699      - updated AD_SOURCE, generated .flow
1700      - added CD_CODE_VARS.h to the_main_loop
1701      - Moving cd_code specific store dir.s to pkg/cd_code
1702    o ctrl package totally restructured
1703      - pack/unpack now optional and decoupled from
1704        xx_/adxx_ I/O
1705      - ctrl_pack/unpack cleaned
1706        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1707      - confined inclusion of AD_CONFIG.h to where necessary.
1708    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1709    
1710    checkpoint51p_post
1711    o create initial cd_code package
1712      - WARNING: the initialization of fields within packages
1713        is broken because INI_FIELDS (where READ_CHECKPOINT is
1714        called) is called *before* PACKAGES_INIT_VARIABLES.
1715        This seems to be backwards since
1716        1) its important to initially zero the entire field including
1717           the "halo" region
1718        2) zeroing needs to be done *before* reading pickup info
1719           and the pickup call might or might not happen in any
1720           particular run
1721      - this needs an overhaul for R2
1722    o cleanup verification/*/code/GMREDI_OPTIONS.h
1723    o cleanup testreport
1724    
1725    checkpoint51o_post
1726    o bringing AD-related verif's up to date with genmake2
1727      - carbon/
1728      - global_ocean.90x40x15/
1729      - hs.94.1x64x5/
1730      - (front_relax/ )
1731    o (more) consistent directory structure for AD-related verif.'s
1732    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1733    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1734    o bug fix in find_alpha.F for MDJWF:
1735      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1736        change rho -> rho-rhoConst
1737      - replace call find_rho to find_rhonum
1738    o initialisation of rFlx extended to full array (required by TAF)
1739      and shifted to thermodynamics
1740    o removed PTRACERS.h in ptracers routine
1741    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1742    o Correcting initialisations for fVerU, fVerV.
1743    o helping TAF to recognize dependency on kUp for
1744      fVerU, fVerV
1745    o Replacing delZ by delR in pkg/ctrl/
1746    checkpoint51o_pre
1747    
1748    o undid all of cp51 pending some cleanups and discussion
1749    o added the [#include "AD_CONFIG.h"] statement to all files that need
1750       it for adjoint/tl #defines
1751     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1752     o removed tools/genmake since it no longer works
1753    
1754    checkpoint51n_post
1755    o modifications to make FREEZE flux visible to pkg/kpp
1756      - moved surfaceTendencyTice from pkg/seaice to main code
1757      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1758      - subroutine FREEZE now limits only surface temperature
1759        (this means new output.txt for global_ocean.90x40x15,
1760         global_ocean.cs32x15, and global_with_exf)
1761    o added surface flux output variables to TIMEAVE_STATVARS
1762    
1763    checkpoint51n_pre
1764    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1765    o added [#include "AD_CONFIG.h"] to all files that use the following
1766      defines:
1767      - ALLOW_ADJOINT_RUN
1768      - ALLOW_TANGENTLINEAR_RUN
1769      - ALLOW_ECCO_OPTIMIZATION
1770    
1771    checkpoint51m_post
1772    o incorporating changes to get TAMC/TAF working in genmake2
1773      - added new TAMC/TAF targets to the Makefile
1774      - various cleanups related to package handling
1775      - these changes should have no impact on the forward model
1776    
1777    checkpoint51l_post
1778    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1779     - faster algorithm for cal_addtime.F
1780     - higher precision arithmetic, where needed
1781     - pkg/exf *startdate variables changed from calendar date to
1782       model integration time
1783    
1784    checkpoint51l_pre
1785    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1786    o enable to apply restoring on S & T only in a latitude band.
1787    o update output (external_forcing_surf modif. change truncation errors)
1788       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1789    
1790    checkpoint51k_post
1791    o change default to: useNHMTerms=.FALSE.
1792     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1793       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1794     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1795        exp1, ideal_2D_oce
1796     - change data file of oceanic exp (leave the results unchanged for now)
1797       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1798    o set gravitySign automatically according to the vertical coordinate used
1799      (and change sign: back to "logical" value: +1 when R increases downward)
1800    o added an include barrier to the default CPP_OPTIONS.h and
1801      removed the #include "PACKAGES_CONFIG.h" from it
1802    o fix a bug in mom_fluxform (from chk51j_post)
1803    
1804    checkpoint51j_post
1805    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1806    o adjusted some flow directives (dynamics, thermodynamics)
1807    o added cubed-sphere case to test cost function
1808    o heckpoint_lev?_directives.h now include
1809      pkg-specific directives, whenever those are enabled.
1810    o Moving pkg-specific flow directives to corresponding pkg
1811      Moving pkg-specific differentiation list to corresponding pkg
1812      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1813      ---> conventions are
1814           - pkg_ad.flow
1815           - pkg_ad_diff.list
1816           - pkg_ad_check_lev?_dir.h
1817    
1818    checkpoint51i_post
1819    o merge of the branch-genmake2
1820      - knowingly breaks the older genmake
1821      - automatic generation of all ALLOW_${PKG_NAME} defines
1822      - new testreport supersedes older testscript
1823    o large number of package inclusion and header cleanups
1824    checkpoint51i_pre
1825    
1826    o new output for adjoin of global ocean vector invariant
1827    o fix for checkpoint of thermodynamic seaice and bulk_force
1828    o Steph gchem various cleanups
1829    
1830    checkpoint 51h_pre
1831    o fixed some single quotes
1832    o modify gchem pkg to be more versatile
1833    o modifications to clean up dic pkg
1834    o add pkg/cfc
1835    
1836    checkpoint51g_post
1837    o provide links for ARPACK and ADM*TLM
1838    o start removing verification/vero/
1839    o update AD-related stuff
1840      (in particular some IF-statements in model/src/ routines)
1841    o adding to verification/global_ocean.90x40x15/ adjoint of
1842      vector invariant setup
1843    
1844    checkpoint51f_post
1845    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1846    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1847      of tracer Green's fucntions for ocean inversion project.
1848    
1849    checkpoint51f_pre
1850    o Added on-the-fly spatial interpolation capability
1851        "USE_EXF_INTERPOLATION" to pkg/exf.
1852      - This is a temporary Cartesian-grid hack until
1853        the super-duper ESMF coupler becomes available.
1854      - See verification/global_with_exf/README for usage example.
1855      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1856        flags and modified pkg/seaice accordingly.
1857    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1858        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1859        non-local transport term.
1860    
1861    checkpoint51e_post
1862    o pkg/mom_vecinv:
1863      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1864      - add time-ave diagnostic of vorticity advection.
1865    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1866    o atmospheric geopotential: - include water vapor effect;
1867                                - use p^kappa in p* scaling.
1868    o land pkg: read initial state from files.
1869    o AIM : add stratospheric drag in the upper level
1870    
1871    checkpoint51d_post
1872    o change function ILNBLNK (=> last non-blank char.) to return zero
1873      (instead of the string length) when the string. char is empty
1874    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1875    o modif's to restore TAMC compatibility
1876      - avoid "_d" constructs in PARAMETER declarations
1877      - avoid interrupting lines by comment lines
1878    o Use cluster local disks for purely local I/O
1879      vs. globally visible disks needed for ctrl stuff
1880      (merged from ecco-branch)
1881      - new active_file_loc... and mdsio_..._loc routines
1882      - affected packages: autodiff, ctrl, grdchk, mdsio
1883    
1884    checkpoint51c_post
1885    o introducing integer flag debugLevel
1886      - debLevZero: suppress all output
1887      - debLevA: standard
1888      - debLevB: equivalent to current debugMode=.TRUE.
1889    o introducing pathname variable mdsioLocalDir for mdsio
1890      that can be specified at runtime
1891      (relevant for cluster I/O to local disk)
1892    `
1893    >>>checkpoint51b_post
1894    adjoint of ptracers
1895    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1896    o extended state in checkpoint_lev?, etc.
1897    o alternative ctrl/cost with tr1 or ptracer
1898    o new comlev1_bibj_ptracers
1899    o new ptracers.flow
1900    o made ptracers_forcing same as external_forcing_s
1901    o added verification for adjoint with ptracers
1902      - adm. grdchk fail so far
1903      - tlm. grdchk OK
1904      - checked tapelev/comlev recomputations: OK
1905    <<<checkpoint51b_pre
1906    
1907    checkpoint51a_post
1908    o added code for biogeochemistry package
1909      - new pkgs: dic, gchem
1910      - new subroutine in ptracers
1911    o modify code for biogeo packages
1912      - in model/src and pkg/ptracers
1913    
1914    checkpoint51
1915    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1916      - autodiff, ctrl, exf, grdchk, seaice
1917      kept separate packages
1918      - cost, ecco, obcs
1919    o updating verification/internal_wave, verification/lab_sea
1920      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1921    
1922    checkpoint50i_post
1923    o Preparing next differentiable checkpoint and sync
1924      of MAIN vs. ecco-branch
1925      - 1st step: this one is differentiable
1926      - 2nd step: next(! not this) checkpoint will have updated packages
1927                  from ecco-branch)
1928    
1929    checkpoint50h_post
1930    o new package "land": provide surface BC for AIM.
1931    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1932    o AIM: use true log-P extrapolation for near surface temp (= as in
1933        F.Molteni paper) ; update aim.5l_cs output.
1934    o New variable in PARM03 for more flexible pickups
1935    o somewhat cleaned package initialisation sequence for
1936      ctrl/ cost/ ecco/ in packages_... routines
1937    
1938    checkpoint50g_post
1939    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1940      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1941      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1942        made the default because of faster convergence than ADI
1943    
1944    checkpoint50f_post
1945    o exf totally restructured
1946      - replaced all exf_set_ routines by one generic exf_set_gen.F
1947        and made sure it's still differentiable
1948      - split exf_getffields.F into new exf_bulkformulae.F
1949      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1950      - updated adjoint/makefile and relevant verif. accordingly
1951    
1952    checkpoint50f_pre
1953     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1954          + change Evap over land. (update aim.5l_cs output)
1955     o added missing .cvsignores and made uniform across expts
1956     o changed configuration of tidal_basin_2d expt
1957     o added pkg/debug functions for tracing code in fatal crashes
1958     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1959     o new fn in pkg/monitor to stop model if solution grows too big
1960     o removed lots of single quotes from comments
1961    
1962    checkpoint50e_post
1963    o make KPP work with PTRACERS
1964     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1965       nearly a copy of kpp_transport_s
1966     - there is no analogue to SurfaceTendencyS, so I have to use
1967       gPtr(of the surface layer) instead
1968    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1969    checkpoint50e_pre
1970    
1971    checkpoint50d_post
1972    o change kpp output from multiple-record state files to single-record state
1973      files analogous to write_state.F
1974    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1975      analogous to the cg2d-related output.
1976    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1977      so that writing to internal file fn (with length 512) fails.
1978    checkpoint50d_pre
1979    
1980    checkpoint50c_post
1981    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1982    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1983    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1984    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1985    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1986    
1987    checkpoint50c_pre
1988    Merging from release1_p13:
1989    o bug fix for pkg/seaice dynamic solver
1990    o Added SEAICE_initialHEFF to pkg/seaice
1991    
1992    checkpoint50b_post
1993    o store u*,v* in gU,V instead of in guNm1,gvNm1
1994    o in order to put the momForcing out of the Adams-Bashforth:
1995      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1996      to timestep.F
1997    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1998    o re-generate output for highly sensitive test-exp:
1999       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2000    
2001    checkpoint50b_pre
2002    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2003    o corrected CPP option mismatch in exf_Bulk... functions for case
2004      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2005    
2006    checkpoint50a_post
2007    o Bug fix for merging between c50 and KPP.
2008      ikey was passed from thermodynamics to kpp_calc via
2009      common block rather than being recomputed in kpp_calc,
2010      in contradiction with new key itdkey.
2011      New key ikppkey created, and tamc.h headers updated.
2012    
2013    checkpoint50
2014    - 2nd step of merge with ecco-branch:
2015      merge changes in ecco-branch back into main trunk
2016    - bug fix in find_alpha
2017    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2018    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2019    - merged some sliced AD support routines
2020    
2021    checkpoint49
2022    merged from ecco-branch:
2023    o exf:
2024      - Enable initialisation of forcing fields to constant
2025        (runtime) values.
2026      - in exf_getffields.F
2027        Reduce i-/j-loop to interior domain, discarding overlaps.
2028        That also fixes wrong TAF-key computations for key_1, key_2
2029        with bulf formulae.
2030      - exf_init.F modify #ifdef for exf_init_evap
2031      - exf_getffieldrec.F, ctrl_getrec.F
2032        The following INT-usages are not safe:
2033          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2034          fldcount = int(fldsecs/fldperiod) + 1
2035        and were modified.
2036    o autodiff: checkpoint_lev...
2037      - updated storing for bulk formulae (some arrays were missing)
2038      - added state for seaice package
2039      - synchronized with main branch
2040    o DIVA:
2041      Modif.s in
2042      - the_main_loop.F
2043      - the_model_main.F
2044      and added cost_final_restore.F cost_final_store.F
2045      o With these changes, it is possible to fully separate
2046        the first forward run to compute the cost function (mdthe_main_loop)
2047        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2048        into separate model executions.
2049        This enables better tuning of DIVA to given queue sizes.
2050      o Loss of cost function value in consecutive DIVA runs is
2051        fixed by storing to 'costfinal' file.
2052      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2053        beginning/end of adjoint integration is accounted for.
2054      The current changes apply to TAF-1.4.26.
2055      TAF has one remaining bug, requiring one manual change
2056      (see MITgcm manual).
2057    o cal: synchronized between MAIN and ecco-branch
2058    
2059    checkpoint48i_post
2060    o Changes to restore differentiability of code w.r.t. previous tag
2061      (mostly adding new routines to make list and replacing
2062      pressure by totPhiHyd).
2063    o Updated and merged grdchk package
2064      - has both ADM and TLM checks
2065      - works for single- and multi-proc.
2066      - output cleaned
2067      - worked successfully for parallel DIVA
2068    o genmake:
2069      - Adding -platform=SP4
2070      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2071    o Modif. for DIVA:
2072      ctrl_unpack should not be called in intermediate DIVA interval.
2073      (similar thing would apply for active files such as
2074      tbar, sbar, psbar, which should not be reinitialised;
2075      only relevant for ecco-branch)
2076    
2077    checkpoint48h_post
2078    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2079    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2080    o Added SEAICE_initialHEFF to pkg/seaice
2081    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2082    
2083    checkpoint48g_post
2084    --- EOS:
2085    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2086      store total Potential in totPhyHyd for diagnostics & EOS.
2087    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2088    --- Pressure/geopotential gradient:
2089    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2090    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2091      ( changes results of global_ocean_pressure )
2092    o NLFS + z-coord.: add eta*Rho' contribution.
2093    o accurate phiHyd when using interface-W at the middle between 2 centers
2094     ( changes results of ideal_2D_oce )
2095    o includes r* 2nd term in potential gradient.
2096    
2097    checkpoint48f_post
2098    Merging from release1_p12:
2099    o Modifications for using pkg/exf with pkg/seaice
2100      - improved description of the various forcing configurations
2101      - added basic radiation bulk formulae to pkg/exf
2102      - units/sign fix for evap computation in exf_getffields.F
2103      - updated verification/global_with_exf/results/output.txt
2104    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2105      (SBO) core products, including oceanic mass, center-of-mass,
2106      angular, and bottom pressure (see pkg/sbo/README.sbo).
2107    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2108      to avoid negative values in shallow regions.
2109      - updated verification/natl_box/results/output.txt
2110      - updated verification/lab_sea/results/output.txt
2111    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2112    o Added useSingleCpuIO option (see PARAMS.h).
2113    o Updated useSingleCpuIO option in mdsio_writefield.F to
2114      work with multi-field files, e.g., for single-file pickup.
2115    o pkg/seaice:
2116      - bug fix in growth.F: QNET for no shortwave case
2117      - added HeffFile for specifying initial sea-ice thickness
2118      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2119    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2120      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2121    o pkg/seaice:
2122      - adjoint-friendly modifications
2123      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2124    
2125    checkpoint48e_post
2126    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2127    o dynamics: change definition of computational domain & adapt mom_fluxform
2128      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2129    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2130        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2131        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2132        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2133        inverted_barometer solid-body.cs-32x32x1
2134      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2135    
2136    checkpoint48d_post
2137    o in preparation for r*:
2138     a) use pre-computed gradient of hydrostatic potential:
2139        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2140     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2141        => affects results of glob_oce_pressure (different truncation error)  
2142      update output.txt of ideal_2D_oce & global_ocean_pressure
2143    
2144    checkpoint48d_pre
2145    o in preparation for r*:
2146      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2147      pass the 2 comp. of the grad. as arguments to momentum S/R.
2148      but for the moment, only used if it does not change the results.
2149    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2150    
2151    checkpoint48c_post
2152    Modifications in treatment of initial flux forcing controls
2153    to avoid extra storing of flux fields.
2154    
2155    checkpoint48c_pre
2156    o Added tidal_basin_2d experiment (currently 1D!)
2157    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2158    
2159    checkpoint48b_post
2160    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2161     (modification to pressure gradient not yet implemented)
2162    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2163      (for U & V) that are used for vertical advection of momentum.
2164    
2165    checkpoint48a_post
2166    o In preparation for r*, use temp. array to compute vertical transport
2167       in flux-form momentum pkg. => change results of few test-exp.
2168      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2169                        lab_sea, natl_box & plume_on_slope
2170    
2171    checkpoint48
2172    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2173    
2174    checkpoint47j_post
2175    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2176    o moved adexch from forward_step to addummy_in_stepping
2177    o added exch in ctrl_map_...
2178    o aveFreq.=0. at end of cost_final to avoid overwrite in
2179      reverse checkpointing loop
2180    o Yet more changes in gmredi:
2181      * adgmredi_calc_tensor
2182        avoiding all recomputation of gmredi_slope_limit
2183      * adgmredi_x/y/rtransport
2184        added flag for excessive storing to avoid recomp. of
2185        u/v/rtans, dTdx/y/z
2186        -> this is not really necessary and very memory-consuming
2187      * adgmredi_slope_psi:
2188        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2189      * gmredi_slope_limit
2190        re-activated full calculation of taperfct for case 'ac02'
2191    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2192    
2193    checkpoint47i_post
2194    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2195    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2196      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2197    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2198    o gmredi: fix few bugs.
2199    
2200    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2201    This will be a good checkpoint to plug into the ecco-branch.
2202    o few modif.'s to get latest version adjointed
2203      (mainly kick out code in ini_linear_phisurf)
2204    o modif's to run adjoint with exactConserv
2205    o case GM_BOLUS_ADVEC should be cleaned
2206      S/R gmredi_slope_psi should be cleaned
2207    o verification/carbon now has exactConserv=.TRUE.
2208    
2209    checkpoint47g_post
2210    o time-average AIM output: becomes independent from statvars time-average
2211      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2212    o After TAF bug fix:
2213      Tested adjoint of gmredi package.
2214      Tests were done with checkpoint47 rather than with latest
2215      checkpoint47f_post since the latter is broken for the adjoint
2216      verification/carbon/ contains both ADM and TLM gradient checks.
2217    Here they are, before they get changed/lost/stolen.
2218    Mostly modif.'s to fix numerical sensitivities.
2219    Gradient checks OK for
2220    - GM_taper_scheme:
2221      * clipping
2222      * ac02
2223      * linear
2224      * glw91
2225      * dm95
2226      * ldd97
2227    - GMREDI_OPTIONS:
2228      * GM_VISBECK_VARIABLE_K
2229      * GM_NON_UNITY_DIAGONAL
2230      * GM_EXTRA_DIAGONAL
2231      * GM_BOLUS_ADVEC
2232    in conjunction with data.gmredi parameters to be checked in
2233    in a few minutes under verification/carbon/code/
2234    
2235    checkpoint47f_post
2236    Merging from release1_p10:
2237    o modifications for using pkg/exf with pkg/seaice
2238      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2239        and SEAICE_EXTERNAL_FLUXES
2240      - pkg/exf CPP options EXF_READ_EVAP and
2241        EXF_NO_BULK_COMPUTATIONS
2242      - usage examples are Experiments 8 and 9 in
2243        verification/lab_sea/README
2244      - verification/lab_sea default experiment now uses
2245        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2246    
2247    checkpoint47e_post
2248    o created a tag prior to creating a branch
2249    
2250    checkpoint47d_post
2251    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2252      at the bottom boundary had an erroneous half slip boundary condition
2253    o added bottom drag and no slip boundary condition capabilities to
2254      oceanic pressure coordinates code
2255    o added new verification experiment global_ocean_pressure, this experiment is
2256      also described in the tutorial section of the manual
2257    checkpoint47d_pre
2258    
2259    checkpoint47c_post
2260    o Added a verification experiment for a global cubed-sphere ocean run
2261      -  verification/global_ocean.cubed32x32x30
2262      -  uses pkg/therm_seaice and pkg/bulk_forcing
2263    
2264    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2265    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2266      when using P-coordinate; only implemented for atmospheric config.
2267    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2268      NOTES: requires option NONLIN_FRSURF to be "#define".
2269    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2270    
2271    checkpoint47b_post
2272    Merging from release1_p9:
2273    o pkg/seaice
2274      - removed GOTO's and added taf directives
2275      - double precision constants to reduce the g77 (Linux)
2276        to F77 (SGI) differences reported in release1_p8
2277    o tools/genmake
2278      - added SGI options
2279    o verification/testscript
2280      - updated to that of checkpoint47a_post
2281    o verification/global_ocean.90x40x15/input/eedata
2282      - modified for SGI f77 compatibility
2283    o verification/lab_sea
2284      - added description of sea-ice model
2285      - added missing matlab routines
2286      - added test of thermodynamics parallelization
2287    
2288  checkpoint47a_post  checkpoint47a_post
2289  o new pkg: aim_v23  o new pkg: aim_v23
2290   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.

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