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revision 1.286 by dimitri, Mon May 3 07:12:25 2004 UTC revision 1.719 by jmc, Thu Aug 24 20:41:53 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o change controling S/R for writing pickup file (new S/R do_write_pickup)
8      and clean-up reading/writing of pickup files.
9    o fix local version of read/write pickup (NH part) in rotating_tank/code
10    o simplify EXCH interface:
11     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
12     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
13    o added the regrid package
14    o shelfice:
15     - add a simple boundary layer scheme to reduce noise
16     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
17    
18    checkpoint58n_post
19    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
20       local variable (not in common block).
21    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
22      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
23      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
24        to work with SingleCpuIO.
25    o add "_d 0" to real constant of pkg/cfc subroutines ;
26       update exp. cfc_exemple & tutorial_cfc_offline output files.
27    o multi-threading and IO:
28      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
29        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
30      - barrier before and after reading.
31      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
32      - avoid using MDS_WRITELOCAL for LAND pkg output.
33      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
34        common-block variables ; Allows multi-threading with master-thread IO.
35    o change default MAX_NO_THREADS from 32 to 4 ;
36      and stop cleanly when MAX_NO_THREADS is too small.
37    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
38    
39    checkpoint58m_post
40    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
41       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
42    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
43       keep global_ocean.90x40x15 (for AD testing) with former secondary test
44       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
45    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
46        add MITgcm_tutorials (= code + all the tutorials)
47    o ecco, option to compute cost for total ssh (mean+anom)
48    o consistent with addition of ptracer and ssh in pkg/profiles
49    o profiles: adding ptracer and ssh
50    o testreport: change multi-test output-file name
51      (from output.txt.{name} to output.{name}.txt)
52    o profiles: now ok for mutli-tiles case
53    o seaice: add 4 parameters for different advection schemes for area,
54      (effective) seaice thickness, enthalphy, and snow height. Their default
55      is the standard parameter SEAICEadvScheme
56    o calc_gw:
57     - add cosFacU in zonal viscous flux (harmonic.visc.).
58     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
59       of tutorial_plume_on_slope.
60    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
61    o calc_gw: true flux-form, account for horizontal grid spacing.
62      update rotating_tank results, but not plume_on_slope (affected at
63      truncation level, 11 digits).
64    
65    checkpoint58l_post
66    o calc_gw:
67     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
68     - remove side-drag for now (need to fix it); update plume_on_slope results.
69     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
70    o commit code to make SST/SSS weights spatially variable
71      (based on either variable in-situ or variable initial T/S weights)
72    o pkg/ecco:
73      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
74        now based on horizontally varying weights wthetaLev, wsaltLev
75      * cost_averagesflags now returns year indices in addition to day, month
76      * sflux balance is performed on annual basis
77        (sflxumm, sfluxmm2, bal_sfluxmm)
78      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
79        including separate counting and multipliers
80    o pkg/rbcs
81      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
82    
83    checkpoint58k_post
84    o testreport:
85     - always build in dir. "build" (if not there, mkdir build instead of building
86       & running in input)
87     - run in dir run (if it exists), in build otherwise.
88     - call prepare_run (if input/prepare_run exists)
89     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
90    o pkg/exf modifications to interpolation and rotation routines for more
91       reasonable treatment of North Pole singularity: for tracers North Pole
92       value is set to northernmost zonal-mean value, for zonal velocity it is
93       set to zero, and for meridional velocity it is set to northernmost value.
94    o pkg/exf/exf_check_range.F
95     - add tile index to diagnostics and move stop statement to the very
96       end of the routine.
97    o pkg/diagnostics: (diagnostics_main_init.F)
98      define title of isomorphic variables according to the current config.
99    o pkg/thsice with pkg/seaice dynamics:
100    - fix domain of computation (interior only, required for exf) and do exchanges
101    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
102    o towards a standard way of dealing with multi-threading in MONITOR
103      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
104    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
105       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
106    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
107    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
108    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
109       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
110    o tracer advection:
111     - clean-up and simplify calc_common_factors.F
112     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
113       advection subroutine (but still not used within DST advection S/R)
114    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
115    
116    checkpoint58j_post
117    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
118      from file (collects calls previously in FORWARD_STEP)
119    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
120    o adjoint store dir. adjusted accordingly
121    o genmake2
122      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
123    
124    checkpoint58i_post
125    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
126      on wind stress (SEAICEstressFactor defaults to 1.)
127    o Total number of Timers is finite (<=40): comment out 2 non-essential one
128      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
129    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
130      on CS-grid: no longer loosing mass.
131    o exf & curvilinear-grid: no longer modify longitude xC & xG.
132    o pkg/ggl90: fix sloppy output and fix a bug
133    o pkg/seaice: added SEAICEuseEVPpickup parameter
134      - Set to false in order to start EVP solver with
135        non-EVP pickup files when using SEAICEuseEVP
136      - fix sign error in diffusion in seaice_calc_rhs
137    
138    checkpoint58h_post
139    * Modifications for bottom topography control
140      o replace hFacC by _hFacC at various places
141      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
142      o add non-self-adjoint cg2d_nsa
143      o update autodiff support routines
144      o re-initialise hfac after ctrl_depth_ini
145      o works for 5x5 box, doesnt work for global_ocean.90x40x15
146    * Adding verification for 5x5 box (4-layer) bottom topography control
147    
148    checkpoint58g_post
149    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
150       used for mean seasonal cycle, mean diurnal cycle); add an example
151       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
152    o pkg/ggl90:
153      - add parameter (minimum surface kinetic energy)
154      - fix bug (avoiding division by zero)
155    o couple pkg/thsice to pkg/seaice:
156      - modify advection in seaice to accomodate new scalar fields to be advected
157      - only muliDimAdection scheme work with seaice/thsice
158      - mapping of thsice-variables to seaice-variables, back and forth
159      - does not break the verification experiments, but does not give the
160        desired results either
161    o pkg/seaice
162      - make (default) second order advection a bit less confusing?
163    
164    checkpoint58f_post
165    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
166      to pkg/seaice):
167      - new routines thsice_map_exf and thsice_get_exf provide the interface
168      - add an additional formal parameter to thsice_solve4temp
169    o pkg/exf:
170      - add new fields wspeed, snowprecip (to be able to couple to thsice)
171      - correct Stefan-Boltzmann constant
172      - new parameter for longwave surface emittance
173      - separate some stuff from exf_bulkformulae into new routines  
174        exf_radiation, exf_wind
175      - add new parameters and constants: longwave emissivity for ocean, ice
176        and snow, evaporation parameters over ice
177      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
178        either wind from stress or stress from wind
179    o pkg/thSIce:
180    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
181    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
182       and THSICE_CALC_THICKN
183    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
184    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
185      to make debugging easier.
186    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
187    o pkg/bulk_force:
188      - clean-up comments and parameters ;
189      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
190    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
191      generate new output for test-experiment: aim.5l_cs.thSI
192    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
193      testreport accordingly
194    
195    checkpoint58e_post
196    o SEAICE_CGRID adjoint done
197    o R_STAR adjoint implemented.
198      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
199      * need to sort out init. of h0facc, etc.
200    o Make pkg/profile fully independent of ecco,cost, etc. stuff
201      to be able to use it in pure forward.
202    
203    checkpoint58d_post
204    o upgrade simple test-experiment to tutorial example:
205     step.1: duplicate the experiment and (step.2) will remove the old copy.
206      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
207      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
208      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
209      tutorial_global_oce_biogeo    <- copy of dic_example
210      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
211      tutorial_plume_on_slope       <- copy of plume_on_slope
212      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
213      tutorial_global_oce_optim     <- empty for now (David ?)
214      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
215     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
216    o correct a sign problem in cost_scat.F
217    o obcs and ptracers: fix boundary conditions for advections schemes
218      with larger stencil
219    o thsice adjoint: start
220    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
221      completeness
222    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
223      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
224    o ptracers adjoint:
225      * avoid extensive recomputatations
226      * fix missing re-init. of gptr (missed by TAF)
227    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
228      me to turn off the excessive output to STDOUT that this package produces
229    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
230      and add those terms in Vector-Invariant formulation.
231    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
232      if the control period (xx_hfluxperiod etc) is 0
233    o in profiles pkg, clean routines and fix details
234    o in ecco pkg, reading ssh data:
235      fix problem in case the model does not start at iter0=0
236    o fix mnc-pickup/restart for ptracers
237    o new package prifiles:
238      code to compute profile-based cost by Gael Forget
239      (modifs in ecco, ctrl, autodiff)
240    o Benign bug fix in initialization (spotted by M. Mazloff) of
241      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
242    
243    checkpoint58c_post
244    o adjoint: finish NLFS adjoint and provide reference output in
245      verification/global_ocean.90x40x15/results_ad_nlfs
246    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
247      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
248      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
249      with SEAICE_CGRID defined.
250    o move calendarDumps from "data" to "data.cal" and clean-up the code
251      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
252    o add useEXF & useCAL flags (for now, set in hard-coded way)
253    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
254      (were missing in NH mode, and wrong in quasihydrostatic mode).
255      waiting for Chris updated version of calc_gw to add those CALLs.
256    o fix bug in quasihydrostatic S/R ;
257      add a test for this option: global_ocean.90x40x15.qshyd
258    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
259      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
260    o add on/off flag useOffLine for package OFFLINE
261    o seaice:
262      - modify advection so that it works also on the C-grid
263      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
264        problem in multi-tile runs with C-grid
265      - add flags for clipping ice velocities and/or masking solver forcing
266      - fix drag (ocean on ice) formulation and a bug that caused noise in the
267        C-grid solver
268      - added a few comments to seaice_diffusion.F
269      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
270        are now exclusive)
271      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
272        required re-ordering the code a little:
273       + make DAIRN global variable (defined in SEAICE)
274       + move computation of the viscosities eta and zeta into a new separate
275         routine (because I need to recompute them in seaice_ocean_stress.F)
276    
277    checkpoint58b_post
278    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
279      update output.txt of exp. aim.5l_cs.thSI
280    o various mnc cleanups and improvements:
281      + shrink lookup tables by factor of ~4
282      + better error reporting when running out of lookup space
283      + able to handle longer path/file names (up to 500 chars)
284    o adjoint:
285      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
286      - TBD: "hidden" mom_vecinv recomp. in dynamics
287    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
288     (allow to differentiate between forcing components using new integer flags:
289      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
290     and add new flag to put Dissipation tendency out of Adams-Bashforth.
291    o ecco
292      - enable trend removal from SSH anomaly obs.
293    o adjoint
294      - a fix for PmEpR when #undef EXACT_CONSERV
295      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
296      - try to fix "hidden" recomp. in forward_step for NLFS
297        (NLFS seems broken sometimes after I checked it in)
298    o seaice:
299     - add c-grid version of the dynamic solver:
300       + three new routines that are the c-grid substitute lsr, dynsolver
301         and ostres
302       + put a few fields that were local to dynsolver into global common
303         blocks, so that I can move the computation of stresses etc into
304         seaice_lsr (saves coding but may break the adjoint).
305     - replace more hardwired parameters by runtime parameters
306     - add ice masks that mask the rhs of the implicit solvers where there
307       is no ice (commented out in seaice_dynsolver, because i am not sure
308       if this works properly), eventually this should replace the clipping
309       of ice velocities in seaice_dynsolver to +/-40cm/s.
310    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
311      include it only where its needed
312    o move balancing of fluxes before the call of external_forcing_surf
313    o seaice:
314      - correct units of turning angles (now they are really in degrees)
315      - move computation of GWATX/Y out of main routine into dynsolver
316      - initialize GWATX/Y in seaice_init
317    o Apply mask on Fresh-Water flux (needed for SSH forcing).
318      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
319    o seaice: add runtime flags for turning angles (default to zero)
320    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
321      and trend from exf forcing and ctrl control adjustments
322    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
323      (since checkpoint57x_post)
324    o change the default rotation period to 86164.s = the Earth rotation
325    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
326      and based on a reference stratification. Tested within hs94.cs-32x32x5.
327    o seaice advection: add code for choosing between the default (2nd order
328      central differences) and multiDim advection schemes provided by
329      pkg/generic_advdiff
330    o seaice:
331      - removed all references to SEAICE_GRID.h fields from
332        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
333        (cubed-sphere configuration will change a little)
334      - grid computations in seaice_init are obsolete now.
335      - cleaned up code a little so that is easier to read (hopefully).
336      - added new (better?) discretizations of default advection and diffusion
337        (turn on with SEAICEuseFluxForm)
338      - replace 1 in 3d global fields by kSurface in growth.F
339      
340    checkpoint58a_post
341    o seaice:
342      - bug fix in advect.F
343    o shelfice:
344      - separate shelfice load anomaly from pload (breaks with time
345        dependent forcing), => introduce constant field shelficeLoadAnomaly.
346        Its default is 0., but it may be computed more cleverly from (unknown)
347        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
348        done offline. A good approximation of the pressure load anomaly is
349        necessary to avoid large initial adjustment processes underneath
350        deep-reaching shelfice.
351      - small fix in ISOMIP shelfice_thermodynamics
352      - add more sophisticated thermodynamics of Hellmer (1989), this is
353        now the default
354      - give a few constants more intuitive names
355    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
356      if bulk formulae are used in long integration (especially EmPmR). Turn
357      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
358      if balancePrintMean, the imbalance that is substracted is printed to
359      STDOUT.
360    o fix bug (typo) in obcs_apply_eta.F
361    o add a new package shelfice which enables us to model the circulation
362      underneath shelf-ice with draughts of hundreds of meters.
363     - works
364     - to do: + include improved thermodynamics
365              + check whether kSurfC (from model/inc/SURFACE.h) can be used
366                instead of new field kTopC
367              + can we use topoFile, Ro_surf and existing code in ini_depth.F
368                instead of new field R_shelfIce and new code in ini_depth.F
369                and ini_mask_etc.F?
370              + adjust vertical mixing schemes?
371    o seaice pkg:
372     - add a cpp-flag to include a simple formula for a salinity dependent
373       freezing point of sea water at the surface
374     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
375       meridional stresses are now different (and hopefully correct)
376    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
377       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
378       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
379    o pkg/diagnostics: add options and parameters for regional-statistics
380       diagnostics ; define regions by reading a region-mask from a file
381       (might add other options later)
382    o pkg/bulk_force:
383     - add option and parameters to use AIM surface-flux formulae.
384     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
385       others forcing fields (defined in PARM05, parameter file "data") are loaded
386       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
387     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
388     - use the right EXCH call for uwind,vwind (to work on CS-grid).
389     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
390       and parameters (note: calcWindStress replaces .NOT.readwindstress).
391     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
392    
393    checkpoint58
394    o add "--embed-source" option to genmake2 which, when the supporting
395      tools can be compiled (as determined by genmake2) will turn on the
396      embed_files package which then embeds the entire MITgcm source code
397      (*.[fFhc] + Makefile) used for the build within the executable
398      - requested by CNH but off by default
399      - adds a paltry <9MB to the mitgcmuv executable in most cases
400      - only writes the output when useEMBEDSRC in eedata is true
401    o clean up 3-dim. relaxation codes:
402      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
403      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
404      * Thanks to Tom Haine for testing!
405    
406    checkpoint57z_post
407    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
408      affects output (@ truncation level) of exp. plume_on_slope ; updated.
409    o fix the pickup behavior for obcs in combination with ptracers
410    o fix a bug in ptracers_external_fields_load
411    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
412      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
413    o transfered surface NH pressure to eta field (if exactConserv).
414    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
415         and update lab_sea output.txt file.
416    o completing 3-dim. relaxation code: additional term
417         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
418      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
419      * At compile time, in "EXF_OPTIONS.h" set
420          #define  ALLOW_CLIMTEMP_RELAXATION
421          #define  ALLOW_CLIMSALT_RELAXATION
422      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
423          tauThetaClimRelax3Dim = 15552000.0,
424          tauSaltClimRelax3Dim  = 15552000.0,
425      * 3 cases:
426          1) Use a constant-in-time 3-dim. field
427          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
428          3) Real-time relax. to time-evolving prescribed field
429    o Adding Laplacian-type smoothness constraint on
430      initial and boundary (forcing) controls (ic, bc)
431      * enable at compile-time via
432        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
433      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
434      * Absolute scale somewhat unclear so far
435      * no area weighting was included since no other cost term does so far
436    
437    checkpoint57y_post
438    First step for a NLFS adjoint
439    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
440    o new init. routines for calc_r_star, calc_surf_dr
441    o still need to deal with ini_masks_etc
442    o testreport seemed happy
443    checkpoint57y_pre
444    
445    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
446    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
447    o add new offset feature to offline pkg (plus minor cleanup)
448    o cfc fixes for final year of integration
449    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
450      be in GCHEM_OPTIONS).
451    
452    checkpoint57x_post
453    o fix testreport Pb in multiple test experiment.
454    o cleanup our namelist syntax in verification:
455      - make it more F95 standards compliant (some work still needed)
456      - allows the vast majority of our tests to work with gfortran
457    o Non-Hydrostatic:
458     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
459     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
460    o Allow to apply AB on T,S rather than on AB(gT,gS):
461     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
462     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
463       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
464     - need a "clever" read_pickup to restart from the other AB formulation
465    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
466    o remove some unused variables (reduces number of compiler warnings)
467    o adjoint
468      * Disable useVariableViscosity for adjoint for time being
469        (there are a number of extensive recomputations)
470      * Initialize certain variables needed for adjoint
471    
472    checkpoint57w_post
473    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
474                 fix the singleCpuIO RS version of MDSWRITEFIELD
475       and add a WARNING if using globalFiles=T with multi-processors.
476    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
477      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
478    o tracer advection scheme:
479      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
480       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
481       was not very convenient).
482      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
483       (further tests needed for the implicit DST & Flux-Limiter schemes).
484    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
485      and sRef for convenience, handy, when you want to initialize
486      ptracers in a large domain with a constant non-zero value. Also,
487      untangle ptracers_init.F a little.
488    
489    checkpoint57v_post
490    o change dome exp. to use variable viscosity in side-drag terms.
491    o remove all the files from the cfc_offline test since they are now
492      incorporated into tutorial_cfc_offline which has been producing
493      identical results for a few days of testing
494    o add new parameter: sideDragFactor to enable half-slip-side BC
495      and change side-drag S/R to use viscosity from mom_calc_visc
496      (can switch back by setting sideDragFactor=0.); affects results at
497      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
498       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
499    o vorticity & strain are now computed without masking, to account for
500      no-slip-side BC in variable viscosity calculation ; mask is applied
501      anyway later on, before computing advection/coriolis terms.
502    o modify exp4 to test new obcs support for reading from external files
503      and for passive tracers
504    o fix behavior of ptracers_monitor when monitor output is written to a
505      netcdf-file; still not independent of monitor.F (writes in the same
506      file).
507    o change default value of tRef (put a uniform, meaningful value for ocean
508      & atmos) and initialize sRef (was missing, as Martin mentioned).
509    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
510      to be proportional to enstrophy dissipation length.  Thus,
511       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
512      This is now consistent with Smagorinsky and with the manual.
513    
514    checkpoint57u_post
515    o OBCS and PTRACERS: add open boundary support for passive tracers
516      - either use homogenous (pseudo) v.Neumann conditions or prescribe
517        OB-values from file; this is not different from the way theta and salinity
518        are treated
519      - however, Orlanski-radiation conditions are not supported, and the model
520        will stop if you use pTracers and Orlanski at the same time.
521      - beefed up the rountine obcs_external_fields_load: now only those open
522        boundary values are overwritten with values from files for which there
523        are really files, otherwise the OB-fields remain untouched. This makes
524        it possible to use different OBs at different ends of the domain (as
525        with EXF)
526    o reduce number of exch calls in shap_filt (s2).
527    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
528      truncation level) 4/5 MLAdjust test results (11&12 digits match).
529    
530    checkpoint57t_post
531    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
532    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
533      same truncation, independent of the face number: affects affects several
534      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
535    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
536      note that biharmonic viscosity + no-slip was not tested in any experiment.
537    o fix bug in non-linear free-surf side-drag ; generate new output for
538      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
539    o make mnc honor the writeBinaryPrec flag for most kinds of output
540    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
541    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
542      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
543    o add brackets in multi-terms sum to get same truncation, independent of
544      the face number (manage to get exactly same value of gU,gV at the cs-edge)
545      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
546    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
547      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
548      a maximum grid-scale Reynolds number.  Also, changes all length calculations
549      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
550      Suggested values of viscosity parameters found in mom_calc_visc.
551      Many new viscosity diagnostics available.
552    
553    checkpoint57s_post
554    o Add clearing-house for viscosity calculations, mom_calc_visc and
555      correct numerous bugs in LeithD and Smagorinsky discretizations.  
556      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
557      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
558      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
559      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
560      The Strain-Tension form is now called with useStrainTensonVisc=.true.
561      ViscAhStrain and viscAhTension are now retired.
562    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
563    o In response to JMC's bug report, genmake2 now ignores any soft-links
564      that it finds in the *current* directory when searching for files.
565      Soft-links found in any other source directories will still work as
566      they did before.
567    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
568      a C routine to unlimit the stack size
569    o mnc-ify pkg/aim snapshot vars
570    o mnc-ify pkg/land as requested by Daniel
571    o various changes to mnc including:
572      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
573      - output can now be grouped so that all files within a group
574          change the ITER portion of their names in lock-step together
575      - can now read ("global") PER-FACE (in addition to PER-TILE) files
576          and works with both EXCH1 and EXCH2 (but needs more testing)
577      - writing works for all verification test cases w/ g77 on Linux
578    
579    checkpoint57r_post
580    o make MNC variable initialization happen earlier
581    o add diagnostics for (almost) each term of the momentum Eq.
582    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
583    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
584    o remove MINIMAL_TAVE_OUTPUT option ;
585      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
586    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
587      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
588    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
589    o add time-dependent SST, SSS control
590    o cost terms in ecco/ modularized (new cost_generic.F)
591    o cost_averages routines are modularized (new cost_averagesgeneric.F)
592    o new infrastructure for seaice model vs. obs misfits in seaice/
593      * driver from the_main_loop.F is seaice_cost_driver.F
594      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
595      * gradient check in Exp. 6a of natl_box_adjoint/
596    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
597      (see README file)
598    
599    checkpoint57q_post
600    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
601    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
602      - bug was reported by Jean-Michel and Ian Fenty
603    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
604      update exp. cpl_aim+ocn output.
605    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
606      Needed for high-res. runs with large global files
607      to be able to limit tapelev size
608    o Changed some tests for adjoint:
609      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
610      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
611      * global_ocean.90x40x15/ back to default 3-level checkpointing
612    o Modifications to enable scripted COMMON to MODULE conversion
613      * verification/OpenAD/code/ has necessary scripts and description;
614      * converts, compiles and runs successfully;
615    
616    checkpoint57p_post
617    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
618    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
619      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
620    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
621    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
622      (was already the case for dissipation with mom_vecinv,
623       and also the case for grad.PhiHyd when staggered-timeStep)
624      This will allow to put dissipation out-off the AB time-stepping.
625     Unfortunately, affects truncation error. Update output of exp. that "fails"
626      (cg2d matching number) and leave the others for later: front_relax(10),
627      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
628      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
629    
630    checkpoint57o_post
631    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
632      (2) its ready to be documented during the 20050801 DocFest
633    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
634      for ideal_2D_oce and lab_sea on linux_ia32_g77
635    o set to #undef CTRL_SET_OLD_MAXCVARS_30
636      in global1x1_tot/code_seaice_adj to access indices 32, 33
637      (worth another tag)
638    
639    checkpoint57n_post
640    o adding precip control xx_precip 32
641    o adding swflux control xx_swflux 33
642    o Replacing 10 forcing penalty cost routines by 1 generic.
643    o Implementing partitioning in time-mean and variable adjustment
644      for atmos. state.
645    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
646    o in natl_box_adjoint:
647      * updated exp 1 to 10
648        (but does not have time-mean vs. variable split results yet)
649    o updated global1x1/*_seaice_adj/
650      to incorporate latest changes
651    o enable useSingleCpuIO for mdsio vector routines
652      (applies in particular to tapelev I/O)
653    o removed inefficient K-loop in all active_file*control*.F
654    
655    checkpoint57m_post
656    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
657      and advect_cs (use EXCH-2 and standard cs-32 grid files).
658    o pkg/exch2: filling of face-corner halo regions is optional
659      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
660    
661    checkpoint57l_post
662     tag before updating tutorials (pre-release-2)
663    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
664       for output and interpolation of input fields onto model grid)
665    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
666       Affects results of exp. rotating_tank ; update output.txt.
667    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
668          and taking the square quantity and/or using a fraction-weight field.
669    o fix aim_diagnostics_init.F mate numbers.
670    o add mnc output capability to diagnostics/diagstat and update
671      our cvsignore files for the ACSII output generated
672    
673    checkpoint57k_post
674    o lab_sea now uses diagnostics package and provides a suite of
675      new EXF diagnostics output.
676    
677    checkpoint57j_post
678    o exf
679      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
680        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
681        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
682      * extended diagnostics output
683        - now includes all EXF variables
684        - hs, hl moved to common block
685        - separate S/R for diagnostics, called after ctrl vector is added
686        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
687        - EXFqnet contains true Qnet (i.e. includes qsw)
688      * updated verif. lab_sea, global_with_exf
689      * Rearranging hflux (exf_mapfields -> exf_getforcing)
690        to ensure that diagnostics sees a true EXFqnet
691    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
692    o diagnostics pkg: change pointers so that 1 diagnostic can be used
693      several times with different frequencies.
694    o mnc-ify the thsice package as requested by Daniel Enderton
695      - the monitor--MNC output needs work
696      - many attributes need to be added (most are currently blank)
697    o mnc-ify theaim_v23 package as requested by Daniel Enderton
698      - many attributes need to be added (most are currently blank)
699    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
700    o add Sadourny like discretization to the 4th.O vorticity advection scheme
701    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
702      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
703         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
704    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
705     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
706    
707    checkpoint57i_post
708    o Diagnostics package was changed: diagnostic allocation is now deactivated
709      by setting an empty file name in the namelist (used to be by setting 0 frequency)
710    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
711      add 1rst Order upwind vertical Shear.
712    o add a quick fix for A/B checkpointing in OFFLINE mode
713    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
714      end-run around the C/Fortran linking horror in eesup/src/timers.F
715    o added pkg/runclock: allows user to terminate run based on wall clock
716    o added non-hydrostatic scaling parameter: nh_am2
717    o pkg/my82: futile attempt to make results compiler-independent by adding
718      some "_d 0", etc. no effect.
719    o for mnc output, fill the 'T' coordinate var with myTime and create a
720      separate 'iter' variable for iteration count
721    o pkg/diagnostics:
722      add new capability: output of Global/Regional & per-level statistics ;
723      tested against monitor output (including land & thSIce) on various exp.
724    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
725    
726    checkpoint57h_done
727      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
728      data.diagnostics, data.gchem, data.ptracers) is done.
729    
730    o pkg/diagnostics: prepare for Global/Regional statistics.
731      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
732    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
733      and rename it: DIFFERENT_MULTIPLE
734    
735    checkpoint57h_post
736    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
737    o pkg/diagnostics: change output frequency, now in seconds (instead
738      of Nb of iterations). This requires to change data.diagnostics.
739    checkpoint57h_pre
740    
741    o in mnc, let the user create the output dir if both mnc_outdir_date
742      and mnc_outdir_num are false
743    o add fflags() to pkg/diagnostics which allows one to specify, on a
744      per-file basis, the file precision [default behavior is unchanged]
745    o added diagnostics to pkg/kpp, including computation of mixed layer
746      depth based on a temperature/density criterion
747    o updated verification/natl_box to test the new pkg/kpp diagnostics
748    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
749    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
750    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
751      not mnc -- this mistake was found by JMC and is now corrected
752    
753    checkpoint57g_post
754    o add Adams-Bashforth 3rd Order time stepping:
755      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
756      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
757    checkpoint57g_pre
758    
759    o make lambda[Theta,Salt]ClimRelax spatially varying
760      (default remains spatially uniform constant based on tau)
761    o added new control variables
762      * init. uVel, vVel, etanN
763      * lambda[Theta,Salt]ClimRelax
764    o separate masks used for ctrl_pack/unpack 'from write_grid' output
765      (suggested by G. Forget)
766    
767    checkpoint57f_post
768    o add parameter "baseTime" = model base time = time at iteration zero
769      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
770      account for baseTime shift
771    o move Coriolis arrays from PARAMS.h to GRID.h
772    checkpoint57f_pre
773    
774    o mnc-ifying the seaice package
775    o introduced an alternative length scale calculation for use in the limiting
776      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
777    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
778    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
779      as well as grad(vort3).  Made it compatible with both approximate form
780      for the cubed sphere and full form of these gradients.  Added flag
781      useFullLeith to select between approximate and full form.  
782    o add "d0" in getcon.F to reduce differences between compilers/platforms
783      update output.txt of exp. fizhi-gridalt-hs
784    o change port_rand funtion to allow to set the seed.
785    o fix obscure MNC bug involving conversion between reals and integers
786      - it caused no problems with certain (eg. gcc, ifc) compilers but the
787        new version is now more standards-compliant
788    o adjoint-related modifications
789      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
790      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
791      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
792    
793    checkpoint57e_post
794    o Adding eddy stress controls a la Ferreira et al.
795    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
796    
797    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
798      update output.txt of exp. fizhi-gridalt-hs
799    o add more "Z" dimensions and associated coordinate vars to MNC
800    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
801    o parameter calendarDumps: when set, approximate months (30-31 days) and years
802      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
803      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
804      months and years.  Requires pkg/cal.
805    o diagnostics: add pickup functionality
806      - off by default for backwards compatibility
807      - current version only uses MDSIO -- MNC will be added
808    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
809    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
810    
811    checkpoint57d_post
812    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
813    o modify verification/ideal_2D_oce so that it tests the creation of mnc
814      output from the diagnostics package
815    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
816    o make genmake2 more portable by using ".$FS" instead of ".f" for more
817      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
818    o add coordinate variables to the MNC output from the diagnostics package
819    o change MNC-flags default value: true when useMNC=TRUE
820    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
821      the ability (off by default) to read the grid information using MNC
822    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
823    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
824    o do snap-shot diagnostics at the middle of the time-interval (instead of
825      at the end).
826    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
827      new test for AIM with thSIce + slab-ocean
828    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
829    o move state variable diagnostics to the beginning of the time step ;
830      (note: still needs some work specially for snap-shot diagnostics)
831      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
832    
833    checkpoint57c_post
834    o Change testing option (-ieee) to get closer agreement between g77 & ifort
835    o generate new output.txt files on faulks with g77 & the new -ieee option
836    checkpoint57c_pre
837    
838    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
839      update output.txt of exp. global_ocean.90x40x15
840    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
841      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
842    o add saltFlux(+File) forcing capability with periodicExternalForcing
843    o allow to use pkg diagnostics for GM-Redi & ThSIce output
844    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
845    o improvements for the MNC output from DIAGNOSTICS:
846      - correct handling of the unlimitied dimension
847      - all dims now have associated coordinate variables
848      - variables located at U, V, and Corner ("Z") points are now written
849        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
850        *all* data points are output
851    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
852    o added pkg/seaice/seaice_monitor.F
853    o mdsio_readfield.F can now read files visible only to master MPI process.
854    o pkg/seaice: some test code for ice-modified ocean stress
855    o exf_getffields interpolation defaults to bilinear for all scalar forcing
856      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
857      spurious negative numbers for precipitation and humidity.  Will cause
858      some small numerical differences for integrations using pkg/exf/exf_interp.F.
859    o pkg/ctrl/
860      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
861        May be enabled via doPackDiag
862      *  introduce z-scaling of
863         + gradient (doZscalePack) and
864         + control (doZscaleUnpack)
865    o pkg/mdsio/
866      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
867      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
868    
869    checkpoint57b_post
870    o simplify options in diagnostics_fill arguments (remove weird combinations)
871    o fix MNC coordinate variables so that they now contain per-face index
872      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
873      general, EXCH2 grids are only aligned to a "local" coordinate system
874    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
875    o Implement instantaneous output within pkg diagnostics:
876      setting a negative frequency in data.diagnostics produces
877     "snap-shot" output (as opposed to time-average if freq > 0)
878    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
879      NOTE: change ptracer diagnostics name: use 2 characters to work with
880            more than 9 tracers. Add also diagnostics of advect & diffus flux.
881    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
882      becomes the coordinate variable for the 'T' dimension
883    o add CF-style coordinate variables to MNC
884      - just a first cut:  numbers are meaningless on the cubesphere and
885        missing along the T axis but otherwise it works!
886    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
887    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
888    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
889      this is based directly on what the model compute, so that the content of
890      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
891    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
892    o clean up build options files for SunOS, in particular
893      - remove -traditional from xmakedepend
894      - change -xarch=v9 to -xarch=native for f77
895      - restore use of make (not gmake)
896      - add CC=gcc if using g77
897    o changes per discussion of AM, JMC, & EH3 today:
898      - move redundant "grid" variables out of "state" -- in preparation of
899        creating proper CF-style coordinate variables and in recognition
900        that any/all grid variables can be easily copied (eg. w/NCO) from
901        the grid files into any of the other NetCDF files
902      - *always* output grid variables with MDSIO (this will eventually be
903        changed)
904      - output MNC grid file if useMNC is true
905    o every instance of _END_MASTER() has been found and replaced with
906      _END_MASTER( myThid ) in order to satisfy certain picky Sun
907      preprocessors
908    o re-arrange diagnostics pkg initialisation:
909     - allow each package to extend the available diagnostics list
910     - add some checking and fix small problems (multi-threaded, ...)
911     - new S/R diagnostics_fill (replace fill_diagnostics):
912       look through the short list of active diag. (instead of the long list)
913       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
914    
915    checkpoint57a_post
916    o this set of changes restores TAMC compatibility
917      tested for global_ocean.90x40x15 adjoint on trough
918      (what a pain)
919    
920    checkpoint57a_pre
921    o some modifs in tools/build_options for sunos
922    o call ctrl_pack for ctrl at end for optimcycle=0
923    
924    checkpoint57
925    o add horizontal bi-harmonic viscosity for vertical velocity
926      - new parameter viscA4W (defaults to viscA4)
927      - affects only non-hydrostatic code
928      - to be done: no-slip lateral boundary conditions
929    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
930    o implement Implicit Vertical advection for pTracers
931    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
932      (implemented also for implicit vertical diffusion & advection)
933    o OBCS: extend application of tracer open boundary conditions
934      to a strip beyond the boundary of width Olx/Oly
935    o add call monitor to TAF set of required calls (flow directives)
936      and include in natl_box_adjoint
937    o untangle a few ifdefs related to cost, ctrl, autodiff
938      untangel a few ALLOW_ECCO_OPTIMIZATION
939    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
940      (theta2, salt2 in ecco_cost_weights)
941    
942    checkpoint56c_post
943    o OBCS as control variables
944      - update ctrl_ad_diff.list, obcs_ad_diff.list
945      - remove balance of obcs controls from default
946      - fix index bug nobcs in ctrl_init
947      - fix dummy fields filen in ctrl_pack
948      - add dummy weights for obcs
949    o lsopt: comment out fort.94 output
950    o optim:
951      - remove unnecessary header files
952      - adjusted namelists
953      - add xerbla.F to Makefile
954    o exf:
955      - multiple modifications of exf_check_range
956      - unit change in exf_init_runoff from [m/year] to [m/s]
957    o mdsio:
958      - i/o-vector change debugLevel from debLevA to debLevB
959    
960    checkpoint56b_post
961    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
962      is called from DO_THE_MODEL_IO
963      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
964      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
965      - clean up PTRACERS_WRITE_TIMEAVE a little
966    o add another verification experiment that tests both the cfc-pkg and
967      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
968      reactive tendencies treated inline with regular timestepping
969    o testreport previously did a lousy job of comparing small numbers, so
970      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
971      implemented in the little c-progam tmp_cmpnum.c which is embedded in
972      testreport.
973    o ptracers_monitor: bug fix for MPI
974    
975    checkpoint56a_post
976    o GCHEM: finish reorganizating the package
977      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
978        (introduces another 3D-array for each passive tracer, but only if
979        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
980        gchemTendency is not needed because the timestep is done separately)
981      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
982      - GCHEM is now---more or less cleanly---separate from PTRACERS
983      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
984        so clear to me how that should be done in a general way.
985    o CFC: improve formatting of output in CFC_ATMOS
986    o PTRACERS:
987      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
988        that ALL experiments with ptracers enable can be checked. This makes
989        GCHEM_MONITOR obsolete.
990      - include a runtime parameter PTRACERS_monitorFreq that defaults to
991        monitorFreq
992      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
993    o add PTRACERS (PTR0[1-5]) to testreport output
994    o exf_check_range:
995      * default changed to .TRUE.
996      * will check values for niter0 if debLevA, every timestep if debLevB
997      * STOP in exf_check_range if 'out of range'
998      * range chosen generous to allow for potential extema
999      TBD: a version with stricter range
1000           permitted range would be runtime parameters
1001    o GMredi:
1002      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1003      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1004      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1005    o GCHEM:
1006      - move call to GCHEM_FORCING_SEP, so that it is now called before
1007        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1008      - introduced a useGCHEM runtime flag and applied it everywhere.
1009      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1010        this flag is now only visible within GCHEM-pkg routines.
1011      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1012        be replaced by a 3D array that is computed before thermodynamics; for
1013        this, the tracer ID iTracer had to be included into the parameter list
1014        of ptracers_forcing
1015      - set up forward_step to call gchem_forcing, that will replace
1016        gchem_forcing_int in ptracers_forcing
1017      - cleaning up
1018    o small cleaning of exch2: remove files that are also in eesupp/src
1019    
1020    checkpoint56
1021    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1022    o mnc: cleanup "full" files--fixes out-of-memory problem
1023    o ECCO-GODAE
1024      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1025      * fully merged and updated from SIO code
1026        windstress sign change affects
1027        - exf_inscal_[u/v]stress
1028        - sign of xx_tau[u/v] adjustments
1029        - signs in cost_scat
1030      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1031      * natl_box_adjoint updated and compressed
1032      * 2-level checkpoint switch added
1033        (tested in EXP. 1 of natl_box_adjoint)
1034      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1035    o SVD
1036      * first complete, non-hacked version for SVD calculations
1037      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1038        performed via direct access files admtlm_vector.it????
1039        (via ctrl_[un]pack)
1040      * optimcycle is used for ARPACK iteration counter
1041        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1042      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1043        and add linear transforms where necessary
1044      * controls are initial/final SST, SSS (can be extended; need to check
1045        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1046    o mdsio: filename info to both stderr, stdout
1047    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1048      from sign change
1049    
1050    checkpoint55j_post
1051    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1052      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1053    o add consistent build directories and .cvsignore files to verification
1054    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1055    o make all subroutines 30 or less characters in length for certain older
1056      compilers to work (a thorough search only turns up two routines in
1057      pkg/ptracers)
1058    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1059      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1060    
1061    checkpoint55i_post
1062    o change arrays for total vertical diffusivity (2.D if explicit,
1063      3.D if implicit) ; each ptracer uses its own background value.
1064    o added mnc/NetCDF output capability to ocn_compon_interf
1065      - added bits to verification/cpl_aim+ocn so that it can run on
1066        ITRDA and other clusters without the mpirun "-wd" option
1067    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1068      configuration
1069    o give MNC the ability to create additional files rather than
1070      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1071      - the default is just less than 2GB which is a practical limit
1072        on many systems
1073    o Compute the non-local term using either KPP vertical diffusivity (=default)
1074       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1075    
1076    checkpoint55h_post
1077    o add verification test "vermix"
1078    o remove all the *_ioinc flags and replace with the single global
1079      outputTypesInclusive flag
1080    o allow to set a vertical profile of vertical diffusivity for T & S
1081    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1082    o useMNC moved from data.mnc to data.pkg
1083    
1084    checkpoint55g_post
1085    o Renaming carbon AD experiments to comply with testreport conventions
1086    o Updating adjoint of Held-Suarez hs94.1x64x5
1087    o Fixing directives for non-ECCO forward_step, after ECCO directives
1088      have been fixed to avoid recomp. of do_oceanic_phys
1089      Works well for global_ocean.90x40x15,
1090      but recomp. issue remains for carbon
1091    o Updating adjoint output for natl_box_adjoint after
1092      pkg/ecco has been modified (see taga c55d_post)
1093    
1094    checkpoint55f_post
1095    o rename to timeave_init_fixed
1096    
1097    checkpoint55e_post
1098    o some delicate re-shuffle of store directives to avoid one
1099      extra call of do_oceanic_physics
1100      affects ecco_the_main_loop.F, do_oceanic_physics.F
1101      checkpoint_lev1_directives.h
1102    o NB: this may break global_ocean adjoint temporarily,
1103      but it is clear how to fix it. Will do later, need this now.
1104    
1105    checkpoint55d_post
1106    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1107    o ecco_cost_weights is modified to 1x1 runs
1108    o modifs to allow observations to be read in as
1109      single file or yearly files
1110    o enable to read exf forcing fields as either
1111      single file or yearly files (flag useExfYearlyFields)
1112    checkpoint55d_pre
1113    
1114    o switch between 2-level and 3-level checkpointing
1115    o add ability of MNC to write local and "partial" (eg. 2D slices where
1116      the full 3D field is never actually stored) arrays to NetCDF files
1117      with the correct (that is, the complete multi-dimensional) set of
1118      array indicies
1119      - used in mom_vecinv() to write the diagFreq output
1120      - tested (demonstrated) in verification/aim.5l_cs
1121    o further mnc-ification
1122      - add verification/lab_sea to the list with mnc setups
1123      - fix undefined mnc v-names in cd_code
1124      - add kpp to mnc output (both snapshot and timeave)
1125    o non-hydrostatic code
1126      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1127        in calc_gw.F
1128      - defaults to viscAh
1129      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1130        friction or Leith) in non-hydrostatic mode, as long as there is
1131        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1132    o pkg/cost
1133      extend simple cost functions to treat time mean quantities
1134      (T,U,V) via cost_accumulate_state from cost_tile
1135    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1136        be 2 times larger than the minimum size the advection scheme requires.
1137        now get a perfect conservation of salt in advect_cs test-exp (updated)
1138    o GGL90 (Gaspar's TKE mixed layer)
1139      - add horizontal diffusion of TKE, requires exchanges in
1140        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1141        default. In OPA there is no horizontal diffusion of TKE but the
1142        mixing coefficients are computed from a horizontal average of TKE of
1143        6 points or so. I think that diffusion has a little more physical
1144        justification.
1145      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1146        was in vain)
1147      - mask tke-variable in ggl90_init
1148    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1149    o fix biharmonic diffusion on CS-grid.
1150    o more obcs stuff
1151      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1152        for reading boundary values. This routine is called from
1153        obcs_prescribe_read
1154      - updated obcs_check
1155      - changed sponge layer relaxation parameter units for days to seconds
1156      - turned off sponge layer by default
1157      - changed argument list of OBCS_CALC to myTime+deltaTclock
1158      - fixed about 35 bugs in obcs_external_fields_load
1159    
1160    checkpoint55c_post
1161    o obcs stuff
1162      - new runtime flags useOBCSprescribe, useOBCSbalance
1163      - re-arranged obcs_calc
1164      - moved exf_getobcs to obcs_prescibe_read
1165        obcs_prescibe_read is called after ORLANSKI stuff
1166        and independent of it (executable can contain all).
1167      - updated obcs_check
1168      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1169        These may be necessary only if tangential velocities are
1170        prescribed at OB, not sure, needs testing.
1171    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1172      which simplifies the calls and passes the ifc check-bounds test
1173    
1174    checkpoint55b_post
1175    o add a 2D scalar, Z location, exchange_2 routine.
1176    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1177      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1178      affects advect_cs results (for the wrong reason): update output.txt
1179    o use a more standard discretization for biharmonic viscosity ;
1180     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1181      affects results of dome set-up: update output.txt
1182    o fix gad_advection.F (CubedSphere part), back to version 1.23
1183    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1184    
1185    checkpoint55a_post
1186    o merged code to
1187      * prescribe/read time-dependent open boundaries
1188        (works in conjunction with exf, cal)
1189      * sponge layer code for open boundaries
1190      * each boundary N/S/E/W now has its own CPP option
1191        (healthy for the adjoint)
1192    
1193    checkpoint55
1194    o up-to-date adjoint of previous breaks
1195      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1196      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1197      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1198      - carbon: * remove tr1-related adjoint verification
1199                * add ptracer as control variable
1200    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1201      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1202    
1203    checkpoint54f_post
1204    o in verification/carbin/ remove experiment related to
1205      ALLOW_PASSIVE_TRACER (array tr1 etc)
1206      code_ad/ input_ad/ results_ad
1207    
1208    o add two new packages
1209      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1210        + subject to optimization (memory)
1211      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1212        + subject to reordering (many GOTOs in the original code)
1213        + so far opps is called for every (i,j) point, and then operates in
1214          the vertical; one may want to reorder the scheme in order operate in
1215          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1216          fields)
1217    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1218      - all verification tests compile and run with linux_ia32_g77
1219      - defaults are compatible with current input files--nothing
1220        should change if you were not previously using MNC
1221      - MNC output has been added in numerous places (eg. timeave)
1222        but there are still a few writes not yet do-able with MNC
1223        (this is in progress)
1224      - flags now allow for either/or/both use of MDSIO and MNC and
1225        documentation will soon follow
1226      - numerous small formatting cleanups for ProTeX
1227    o add version info (via BUILD_INFO.h) to MNC and stdout
1228    
1229    checkpoint54e_post
1230    o add two new packages
1231      - pp81 (Packanowski and Philander, 1981), Richardson number and
1232        stratification dependent mixing
1233      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1234      - these scheme operate in a similar manner as KPP (without ghat, of
1235        course), however there is only one diffusivity that is used for both
1236        temperature and salinity (and passive tracers)ç
1237    o add offline package
1238    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1239      provided by Stephanie Dutkiewicz
1240    o genmake2: add ability to search for C compilers and cleanup test output
1241      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1242    
1243    checkpoint54d_post
1244    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1245    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1246      leading to additional shift by 5 days each year of integration
1247       (i.e. leading to considerable offset over the years)
1248    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1249    o start with no AB and no initial filtering (staggerTimeStep):
1250      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1251    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1252      (external loading & cpl import/export stay in forward_step.F)
1253    o update coupling interface to work with new staggerTimeStep
1254    o change MDSIO ptracers_pickup.
1255    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1256    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1257    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1258    
1259    checkpoint54c_post
1260    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1261      this affects (truncation error) output.txt of test-exp:
1262       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1263    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1264    o change Qnet to always be the net heat flux, (+upward).
1265      affects (truncation error) output of natl_box exp.: updated
1266    o define the max number of passive tracers in PTRACERS_SIZE.h
1267    o start to test mnc routinely in exp0
1268    o add sea-ice loading (sIceLoad) as a new forcing field.
1269    
1270    checkpoint54b_post
1271    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1272       impressive on Altix and Opteron systems)
1273    o diagnostics can now write NetCDF files through the mnc package
1274    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1275    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1276    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1277      affects (truncation error) output of lab_sea & natl_box exp.: updated
1278    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1279    
1280    checkpoint54a_post
1281    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1282    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1283    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1284    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1285      + internal_wave (shift in writing cg2d_ini_res)
1286    checkpoint54a_pre
1287    
1288    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1289      - modified verification/lab_sea and natl_box_adjoint accordingly
1290    
1291    checkpoint54
1292    checkpoint53g_post
1293    o prepare splitting of thermodynamics: store convect.counter in common block
1294    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1295      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1296    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1297    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1298    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1299    o restore adjointability
1300    
1301    checkpoint53f_post
1302    o modifications that affect AIM experiment results (update output.txt):
1303      - no advection of S at top interface Nr (pkg/generic_advdiff)
1304      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1305    o AIM pkg:
1306      - include stability function into surf.Flux derivative relative to Tsurf
1307      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1308    
1309    checkpoint53e_post
1310    o merged cylindrical coord configuration
1311    o added rotating_tank experiment
1312    checkpoint53e_pre
1313    
1314    checkpoint53d_post
1315    o faulks upgraded: re-generate output.txt that have changed:
1316       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1317    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1318    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1319    o added Sadourny discretization of Coriolis
1320      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1321      - re-enabled use of omega3 (useAbsVorticity)
1322    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1323      vector-invariant equations
1324      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1325    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1326      hopefully without new bugs
1327      - still to do: biharmonic friction for non-hydrostatic w
1328    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1329    o regenerated output for global_ocean_ebm (using -ieee)
1330    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1331      of mom_common/
1332      - simple re-arrangement of instructions within computing loop
1333    checkpoint53d_pre
1334    
1335    checkpoint53c_post
1336    o new version of coupler for AIM+thSIce and Ocean models
1337     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1338     - land: change Evaporation of snow
1339     - aim with thSIce: fix bug in snow-precip.
1340    o changes to calc_gw.F
1341     - bug fix for w^2 term near the bottom boundary
1342     - (hopefully) improve the lateral slip boundary condtions for use with
1343        partial/looped cells
1344      - because the bug fix changes two verification experiments anyway (exp5
1345        and plume on slope), change the lateral boundary condition from half slip
1346        to the value of no_slip_sides
1347    o ebm package wasnt quite up to the parallel task. Fixed that.
1348    o Adjoint of EBM package + verification
1349      * TLM OK
1350      * ADM not sufficient accuracy yet (needs further testing)
1351    
1352    checkpoint53b_post
1353    o Commiting new energy balance model to repository
1354      * package is pkg/ebm
1355      * verif. is verification/global_ocean_ebm
1356      * references are in ebm_driver.F
1357    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1358    C        Global thermohaline circulation. Part I:
1359    C        Sensitivity to atmospheric moisture transport.
1360    C        J. Climate 12(1), 71-82
1361    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1362    C        Global thermohaline circulation. Part II:
1363    C        Sensitivity with interactive transport.
1364    C        J. Climate 12(1), 83-91
1365    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1366    C        Destabilization of the thermohaline circulation
1367    C        by atmospheric eddy transports.
1368    C        J. Climate 7(12), 1870-1882
1369    o Will need long integration testing.
1370    checkpoint53b_pre
1371    
1372    o created pkg/mom_common in preparation for variable viscosity code
1373    o renamed and split ini_mnc_io
1374    o pkg/land: only liquid water can diffuse or run-off
1375    o AIM using land: soil wetness availability account for snow
1376    o added printMapIncludesZeros to EEPARMS namelist
1377    
1378    checkpoint53a_post
1379    o restore TAMC compatiility for exf_constants.h
1380      (no usage of _d in .h)
1381    o Additional storing in KPP in an attempt to fix
1382      TAMC problem with adjoint of KPP code.
1383      (no success...)
1384      Identical code works fine with TAF.
1385    o Fixed verification/natl_box_adjoint experiments.
1386      Initial conditions for Experiments 4 and 5 are now
1387      set to "SEAICE_initialHEFF=0", which is more reasonable,
1388      and hence gives results closer to that of Experiment 2.
1389      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1390    
1391    checkpoint53
1392    o stable checkpoint with up to date adjoint
1393      TLM tests only run for 1st grdchk at the moment. Its unclear if
1394      this is a code problem or a problem with resetting code for g_
1395      variables that is being autogenerated wrong.
1396      Otherwise:
1397       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1398       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1399         are both still in chaos following their security messes.
1400    
1401    checkpoint52n_post
1402    o various build (mostly genmake2) changes including:
1403      - ability to build/run more easily within Cygwin and MacOS X
1404      - more complicated Makefiles with a stronger dependence on Gnu Make
1405  o pkg/seaice modifications  o pkg/seaice modifications
1406      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1407        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1408        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1409    - changed proxy for geostrophic velocity and updated    - changed proxy for geostrophic velocity and updated
1410      verification/lab_sea/results/* accordingly      verification/lab_sea/results/* accordingly
1411    - removed ADI dynamic solver from pkg/seaice    - removed ADI dynamic solver from pkg/seaice

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