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revision 1.448 by edhill, Wed Feb 9 17:34:19 2005 UTC revision 1.675 by jmc, Mon Jun 12 22:25:38 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 vector_invariant: fix highOrderVorticity(=4.th.Order) advection
8      on CS-grid: no longer loosing mass.
9    o exf & curvilinear-grid: no longer modify longitude xC & xG.
10    o pkg/ggl90: fix sloppy output and fix a bug
11    o pkg/seaice: added SEAICEuseEVPpickup parameter
12      - Set to false in order to start EVP solver with
13        non-EVP pickup files when using SEAICEuseEVP
14      - fix sign error in diffusion in seaice_calc_rhs
15    
16    checkpoint58h_post
17    * Modifications for bottom topography control
18      o replace hFacC by _hFacC at various places
19      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
20      o add non-self-adjoint cg2d_nsa
21      o update autodiff support routines
22      o re-initialise hfac after ctrl_depth_ini
23      o works for 5x5 box, doesnt work for global_ocean.90x40x15
24    * Adding verification for 5x5 box (4-layer) bottom topography control
25    
26    checkpoint58g_post
27    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
28       used for mean seasonal cycle, mean diurnal cycle); add an example
29       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
30    o pkg/ggl90:
31      - add parameter (minimum surface kinetic energy)
32      - fix bug (avoiding division by zero)
33    o couple pkg/thsice to pkg/seaice:
34      - modify advection in seaice to accomodate new scalar fields to be advected
35      - only muliDimAdection scheme work with seaice/thsice
36      - mapping of thsice-variables to seaice-variables, back and forth
37      - does not break the verification experiments, but does not give the
38        desired results either
39    o pkg/seaice
40      - make (default) second order advection a bit less confusing?
41    
42    checkpoint58f_post
43    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
44      to pkg/seaice):
45      - new routines thsice_map_exf and thsice_get_exf provide the interface
46      - add an additional formal parameter to thsice_solve4temp
47    o pkg/exf:
48      - add new fields wspeed, snowprecip (to be able to couple to thsice)
49      - correct Stefan-Boltzmann constant
50      - new parameter for longwave surface emittance
51      - separate some stuff from exf_bulkformulae into new routines  
52        exf_radiation, exf_wind
53      - add new parameters and constants: longwave emissivity for ocean, ice
54        and snow, evaporation parameters over ice
55      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
56        either wind from stress or stress from wind
57    o pkg/thSIce:
58    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
59    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
60       and THSICE_CALC_THICKN
61    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
62    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
63      to make debugging easier.
64    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
65    o pkg/bulk_force:
66      - clean-up comments and parameters ;
67      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
68    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
69      generate new output for test-experiment: aim.5l_cs.thSI
70    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
71      testreport accordingly
72    
73    checkpoint58e_post
74    o SEAICE_CGRID adjoint done
75    o R_STAR adjoint implemented.
76      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
77      * need to sort out init. of h0facc, etc.
78    o Make pkg/profile fully independent of ecco,cost, etc. stuff
79      to be able to use it in pure forward.
80    
81    checkpoint58d_post
82    o upgrade simple test-experiment to tutorial example:
83     step.1: duplicate the experiment and (step.2) will remove the old copy.
84      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
85      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
86      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
87      tutorial_global_oce_biogeo    <- copy of dic_example
88      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
89      tutorial_plume_on_slope       <- copy of plume_on_slope
90      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
91      tutorial_global_oce_optim     <- empty for now (David ?)
92      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
93     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
94    o correct a sign problem in cost_scat.F
95    o obcs and ptracers: fix boundary conditions for advections schemes
96      with larger stencil
97    o thsice adjoint: start
98    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
99      completeness
100    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
101      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
102    o ptracers adjoint:
103      * avoid extensive recomputatations
104      * fix missing re-init. of gptr (missed by TAF)
105    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
106      me to turn off the excessive output to STDOUT that this package produces
107    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
108      and add those terms in Vector-Invariant formulation.
109    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
110      if the control period (xx_hfluxperiod etc) is 0
111    o in profiles pkg, clean routines and fix details
112    o in ecco pkg, reading ssh data:
113      fix problem in case the model does not start at iter0=0
114    o fix mnc-pickup/restart for ptracers
115    o new package prifiles:
116      code to compute profile-based cost by Gael Forget
117      (modifs in ecco, ctrl, autodiff)
118    o Benign bug fix in initialization (spotted by M. Mazloff) of
119      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
120    
121    checkpoint58c_post
122    o adjoint: finish NLFS adjoint and provide reference output in
123      verification/global_ocean.90x40x15/results_ad_nlfs
124    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
125      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
126      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
127      with SEAICE_CGRID defined.
128    o move calendarDumps from "data" to "data.cal" and clean-up the code
129      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
130    o add useEXF & useCAL flags (for now, set in hard-coded way)
131    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
132      (were missing in NH mode, and wrong in quasihydrostatic mode).
133      waiting for Chris updated version of calc_gw to add those CALLs.
134    o fix bug in quasihydrostatic S/R ;
135      add a test for this option: global_ocean.90x40x15.qshyd
136    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
137      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
138    o add on/off flag useOffLine for package OFFLINE
139    o seaice:
140      - modify advection so that it works also on the C-grid
141      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
142        problem in multi-tile runs with C-grid
143      - add flags for clipping ice velocities and/or masking solver forcing
144      - fix drag (ocean on ice) formulation and a bug that caused noise in the
145        C-grid solver
146      - added a few comments to seaice_diffusion.F
147      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
148        are now exclusive)
149      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
150        required re-ordering the code a little:
151       + make DAIRN global variable (defined in SEAICE)
152       + move computation of the viscosities eta and zeta into a new separate
153         routine (because I need to recompute them in seaice_ocean_stress.F)
154    
155    checkpoint58b_post
156    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
157      update output.txt of exp. aim.5l_cs.thSI
158    o various mnc cleanups and improvements:
159      + shrink lookup tables by factor of ~4
160      + better error reporting when running out of lookup space
161      + able to handle longer path/file names (up to 500 chars)
162    o adjoint:
163      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
164      - TBD: "hidden" mom_vecinv recomp. in dynamics
165    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
166     (allow to differentiate between forcing components using new integer flags:
167      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
168     and add new flag to put Dissipation tendency out of Adams-Bashforth.
169    o ecco
170      - enable trend removal from SSH anomaly obs.
171    o adjoint
172      - a fix for PmEpR when #undef EXACT_CONSERV
173      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
174      - try to fix "hidden" recomp. in forward_step for NLFS
175        (NLFS seems broken sometimes after I checked it in)
176    o seaice:
177     - add c-grid version of the dynamic solver:
178       + three new routines that are the c-grid substitute lsr, dynsolver
179         and ostres
180       + put a few fields that were local to dynsolver into global common
181         blocks, so that I can move the computation of stresses etc into
182         seaice_lsr (saves coding but may break the adjoint).
183     - replace more hardwired parameters by runtime parameters
184     - add ice masks that mask the rhs of the implicit solvers where there
185       is no ice (commented out in seaice_dynsolver, because i am not sure
186       if this works properly), eventually this should replace the clipping
187       of ice velocities in seaice_dynsolver to +/-40cm/s.
188    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
189      include it only where its needed
190    o move balancing of fluxes before the call of external_forcing_surf
191    o seaice:
192      - correct units of turning angles (now they are really in degrees)
193      - move computation of GWATX/Y out of main routine into dynsolver
194      - initialize GWATX/Y in seaice_init
195    o Apply mask on Fresh-Water flux (needed for SSH forcing).
196      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
197    o seaice: add runtime flags for turning angles (default to zero)
198    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
199      and trend from exf forcing and ctrl control adjustments
200    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
201      (since checkpoint57x_post)
202    o change the default rotation period to 86164.s = the Earth rotation
203    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
204      and based on a reference stratification. Tested within hs94.cs-32x32x5.
205    o seaice advection: add code for choosing between the default (2nd order
206      central differences) and multiDim advection schemes provided by
207      pkg/generic_advdiff
208    o seaice:
209      - removed all references to SEAICE_GRID.h fields from
210        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
211        (cubed-sphere configuration will change a little)
212      - grid computations in seaice_init are obsolete now.
213      - cleaned up code a little so that is easier to read (hopefully).
214      - added new (better?) discretizations of default advection and diffusion
215        (turn on with SEAICEuseFluxForm)
216      - replace 1 in 3d global fields by kSurface in growth.F
217      
218    checkpoint58a_post
219    o seaice:
220      - bug fix in advect.F
221    o shelfice:
222      - separate shelfice load anomaly from pload (breaks with time
223        dependent forcing), => introduce constant field shelficeLoadAnomaly.
224        Its default is 0., but it may be computed more cleverly from (unknown)
225        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
226        done offline. A good approximation of the pressure load anomaly is
227        necessary to avoid large initial adjustment processes underneath
228        deep-reaching shelfice.
229      - small fix in ISOMIP shelfice_thermodynamics
230      - add more sophisticated thermodynamics of Hellmer (1989), this is
231        now the default
232      - give a few constants more intuitive names
233    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
234      if bulk formulae are used in long integration (especially EmPmR). Turn
235      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
236      if balancePrintMean, the imbalance that is substracted is printed to
237      STDOUT.
238    o fix bug (typo) in obcs_apply_eta.F
239    o add a new package shelfice which enables us to model the circulation
240      underneath shelf-ice with draughts of hundreds of meters.
241     - works
242     - to do: + include improved thermodynamics
243              + check whether kSurfC (from model/inc/SURFACE.h) can be used
244                instead of new field kTopC
245              + can we use topoFile, Ro_surf and existing code in ini_depth.F
246                instead of new field R_shelfIce and new code in ini_depth.F
247                and ini_mask_etc.F?
248              + adjust vertical mixing schemes?
249    o seaice pkg:
250     - add a cpp-flag to include a simple formula for a salinity dependent
251       freezing point of sea water at the surface
252     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
253       meridional stresses are now different (and hopefully correct)
254    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
255       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
256       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
257    o pkg/diagnostics: add options and parameters for regional-statistics
258       diagnostics ; define regions by reading a region-mask from a file
259       (might add other options later)
260    o pkg/bulk_force:
261     - add option and parameters to use AIM surface-flux formulae.
262     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
263       others forcing fields (defined in PARM05, parameter file "data") are loaded
264       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
265     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
266     - use the right EXCH call for uwind,vwind (to work on CS-grid).
267     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
268       and parameters (note: calcWindStress replaces .NOT.readwindstress).
269     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
270    
271    checkpoint58
272    o add "--embed-source" option to genmake2 which, when the supporting
273      tools can be compiled (as determined by genmake2) will turn on the
274      embed_files package which then embeds the entire MITgcm source code
275      (*.[fFhc] + Makefile) used for the build within the executable
276      - requested by CNH but off by default
277      - adds a paltry <9MB to the mitgcmuv executable in most cases
278      - only writes the output when useEMBEDSRC in eedata is true
279    o clean up 3-dim. relaxation codes:
280      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
281      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
282      * Thanks to Tom Haine for testing!
283    
284    checkpoint57z_post
285    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
286      affects output (@ truncation level) of exp. plume_on_slope ; updated.
287    o fix the pickup behavior for obcs in combination with ptracers
288    o fix a bug in ptracers_external_fields_load
289    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
290      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
291    o transfered surface NH pressure to eta field (if exactConserv).
292    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
293         and update lab_sea output.txt file.
294    o completing 3-dim. relaxation code: additional term
295         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
296      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
297      * At compile time, in "EXF_OPTIONS.h" set
298          #define  ALLOW_CLIMTEMP_RELAXATION
299          #define  ALLOW_CLIMSALT_RELAXATION
300      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
301          tauThetaClimRelax3Dim = 15552000.0,
302          tauSaltClimRelax3Dim  = 15552000.0,
303      * 3 cases:
304          1) Use a constant-in-time 3-dim. field
305          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
306          3) Real-time relax. to time-evolving prescribed field
307    o Adding Laplacian-type smoothness constraint on
308      initial and boundary (forcing) controls (ic, bc)
309      * enable at compile-time via
310        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
311      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
312      * Absolute scale somewhat unclear so far
313      * no area weighting was included since no other cost term does so far
314    
315    checkpoint57y_post
316    First step for a NLFS adjoint
317    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
318    o new init. routines for calc_r_star, calc_surf_dr
319    o still need to deal with ini_masks_etc
320    o testreport seemed happy
321    checkpoint57y_pre
322    
323    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
324    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
325    o add new offset feature to offline pkg (plus minor cleanup)
326    o cfc fixes for final year of integration
327    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
328      be in GCHEM_OPTIONS).
329    
330    checkpoint57x_post
331    o fix testreport Pb in multiple test experiment.
332    o cleanup our namelist syntax in verification:
333      - make it more F95 standards compliant (some work still needed)
334      - allows the vast majority of our tests to work with gfortran
335    o Non-Hydrostatic:
336     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
337     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
338    o Allow to apply AB on T,S rather than on AB(gT,gS):
339     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
340     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
341       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
342     - need a "clever" read_pickup to restart from the other AB formulation
343    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
344    o remove some unused variables (reduces number of compiler warnings)
345    o adjoint
346      * Disable useVariableViscosity for adjoint for time being
347        (there are a number of extensive recomputations)
348      * Initialize certain variables needed for adjoint
349    
350    checkpoint57w_post
351    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
352                 fix the singleCpuIO RS version of MDSWRITEFIELD
353       and add a WARNING if using globalFiles=T with multi-processors.
354    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
355      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
356    o tracer advection scheme:
357      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
358       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
359       was not very convenient).
360      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
361       (further tests needed for the implicit DST & Flux-Limiter schemes).
362    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
363      and sRef for convenience, handy, when you want to initialize
364      ptracers in a large domain with a constant non-zero value. Also,
365      untangle ptracers_init.F a little.
366    
367    checkpoint57v_post
368    o change dome exp. to use variable viscosity in side-drag terms.
369    o remove all the files from the cfc_offline test since they are now
370      incorporated into tutorial_cfc_offline which has been producing
371      identical results for a few days of testing
372    o add new parameter: sideDragFactor to enable half-slip-side BC
373      and change side-drag S/R to use viscosity from mom_calc_visc
374      (can switch back by setting sideDragFactor=0.); affects results at
375      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
376       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
377    o vorticity & strain are now computed without masking, to account for
378      no-slip-side BC in variable viscosity calculation ; mask is applied
379      anyway later on, before computing advection/coriolis terms.
380    o modify exp4 to test new obcs support for reading from external files
381      and for passive tracers
382    o fix behavior of ptracers_monitor when monitor output is written to a
383      netcdf-file; still not independent of monitor.F (writes in the same
384      file).
385    o change default value of tRef (put a uniform, meaningful value for ocean
386      & atmos) and initialize sRef (was missing, as Martin mentioned).
387    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
388      to be proportional to enstrophy dissipation length.  Thus,
389       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
390      This is now consistent with Smagorinsky and with the manual.
391    
392    checkpoint57u_post
393    o OBCS and PTRACERS: add open boundary support for passive tracers
394      - either use homogenous (pseudo) v.Neumann conditions or prescribe
395        OB-values from file; this is not different from the way theta and salinity
396        are treated
397      - however, Orlanski-radiation conditions are not supported, and the model
398        will stop if you use pTracers and Orlanski at the same time.
399      - beefed up the rountine obcs_external_fields_load: now only those open
400        boundary values are overwritten with values from files for which there
401        are really files, otherwise the OB-fields remain untouched. This makes
402        it possible to use different OBs at different ends of the domain (as
403        with EXF)
404    o reduce number of exch calls in shap_filt (s2).
405    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
406      truncation level) 4/5 MLAdjust test results (11&12 digits match).
407    
408    checkpoint57t_post
409    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
410    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
411      same truncation, independent of the face number: affects affects several
412      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
413    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
414      note that biharmonic viscosity + no-slip was not tested in any experiment.
415    o fix bug in non-linear free-surf side-drag ; generate new output for
416      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
417    o make mnc honor the writeBinaryPrec flag for most kinds of output
418    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
419    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
420      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
421    o add brackets in multi-terms sum to get same truncation, independent of
422      the face number (manage to get exactly same value of gU,gV at the cs-edge)
423      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
424    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
425      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
426      a maximum grid-scale Reynolds number.  Also, changes all length calculations
427      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
428      Suggested values of viscosity parameters found in mom_calc_visc.
429      Many new viscosity diagnostics available.
430    
431    checkpoint57s_post
432    o Add clearing-house for viscosity calculations, mom_calc_visc and
433      correct numerous bugs in LeithD and Smagorinsky discretizations.  
434      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
435      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
436      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
437      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
438      The Strain-Tension form is now called with useStrainTensonVisc=.true.
439      ViscAhStrain and viscAhTension are now retired.
440    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
441    o In response to JMC's bug report, genmake2 now ignores any soft-links
442      that it finds in the *current* directory when searching for files.
443      Soft-links found in any other source directories will still work as
444      they did before.
445    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
446      a C routine to unlimit the stack size
447    o mnc-ify pkg/aim snapshot vars
448    o mnc-ify pkg/land as requested by Daniel
449    o various changes to mnc including:
450      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
451      - output can now be grouped so that all files within a group
452          change the ITER portion of their names in lock-step together
453      - can now read ("global") PER-FACE (in addition to PER-TILE) files
454          and works with both EXCH1 and EXCH2 (but needs more testing)
455      - writing works for all verification test cases w/ g77 on Linux
456    
457    checkpoint57r_post
458    o make MNC variable initialization happen earlier
459    o add diagnostics for (almost) each term of the momentum Eq.
460    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
461    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
462    o remove MINIMAL_TAVE_OUTPUT option ;
463      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
464    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
465      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
466    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
467    o add time-dependent SST, SSS control
468    o cost terms in ecco/ modularized (new cost_generic.F)
469    o cost_averages routines are modularized (new cost_averagesgeneric.F)
470    o new infrastructure for seaice model vs. obs misfits in seaice/
471      * driver from the_main_loop.F is seaice_cost_driver.F
472      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
473      * gradient check in Exp. 6a of natl_box_adjoint/
474    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
475      (see README file)
476    
477    checkpoint57q_post
478    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
479    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
480      - bug was reported by Jean-Michel and Ian Fenty
481    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
482      update exp. cpl_aim+ocn output.
483    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
484      Needed for high-res. runs with large global files
485      to be able to limit tapelev size
486    o Changed some tests for adjoint:
487      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
488      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
489      * global_ocean.90x40x15/ back to default 3-level checkpointing
490    o Modifications to enable scripted COMMON to MODULE conversion
491      * verification/OpenAD/code/ has necessary scripts and description;
492      * converts, compiles and runs successfully;
493    
494    checkpoint57p_post
495    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
496    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
497      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
498    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
499    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
500      (was already the case for dissipation with mom_vecinv,
501       and also the case for grad.PhiHyd when staggered-timeStep)
502      This will allow to put dissipation out-off the AB time-stepping.
503     Unfortunately, affects truncation error. Update output of exp. that "fails"
504      (cg2d matching number) and leave the others for later: front_relax(10),
505      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
506      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
507    
508    checkpoint57o_post
509    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
510      (2) its ready to be documented during the 20050801 DocFest
511    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
512      for ideal_2D_oce and lab_sea on linux_ia32_g77
513    o set to #undef CTRL_SET_OLD_MAXCVARS_30
514      in global1x1_tot/code_seaice_adj to access indices 32, 33
515      (worth another tag)
516    
517    checkpoint57n_post
518    o adding precip control xx_precip 32
519    o adding swflux control xx_swflux 33
520    o Replacing 10 forcing penalty cost routines by 1 generic.
521    o Implementing partitioning in time-mean and variable adjustment
522      for atmos. state.
523    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
524    o in natl_box_adjoint:
525      * updated exp 1 to 10
526        (but does not have time-mean vs. variable split results yet)
527    o updated global1x1/*_seaice_adj/
528      to incorporate latest changes
529    o enable useSingleCpuIO for mdsio vector routines
530      (applies in particular to tapelev I/O)
531    o removed inefficient K-loop in all active_file*control*.F
532    
533    checkpoint57m_post
534    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
535      and advect_cs (use EXCH-2 and standard cs-32 grid files).
536    o pkg/exch2: filling of face-corner halo regions is optional
537      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
538    
539    checkpoint57l_post
540     tag before updating tutorials (pre-release-2)
541    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
542       for output and interpolation of input fields onto model grid)
543    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
544       Affects results of exp. rotating_tank ; update output.txt.
545    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
546          and taking the square quantity and/or using a fraction-weight field.
547    o fix aim_diagnostics_init.F mate numbers.
548    o add mnc output capability to diagnostics/diagstat and update
549      our cvsignore files for the ACSII output generated
550    
551    checkpoint57k_post
552    o lab_sea now uses diagnostics package and provides a suite of
553      new EXF diagnostics output.
554    
555    checkpoint57j_post
556    o exf
557      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
558        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
559        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
560      * extended diagnostics output
561        - now includes all EXF variables
562        - hs, hl moved to common block
563        - separate S/R for diagnostics, called after ctrl vector is added
564        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
565        - EXFqnet contains true Qnet (i.e. includes qsw)
566      * updated verif. lab_sea, global_with_exf
567      * Rearranging hflux (exf_mapfields -> exf_getforcing)
568        to ensure that diagnostics sees a true EXFqnet
569    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
570    o diagnostics pkg: change pointers so that 1 diagnostic can be used
571      several times with different frequencies.
572    o mnc-ify the thsice package as requested by Daniel Enderton
573      - the monitor--MNC output needs work
574      - many attributes need to be added (most are currently blank)
575    o mnc-ify theaim_v23 package as requested by Daniel Enderton
576      - many attributes need to be added (most are currently blank)
577    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
578    o add Sadourny like discretization to the 4th.O vorticity advection scheme
579    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
580      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
581         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
582    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
583     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
584    
585    checkpoint57i_post
586    o Diagnostics package was changed: diagnostic allocation is now deactivated
587      by setting an empty file name in the namelist (used to be by setting 0 frequency)
588    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
589      add 1rst Order upwind vertical Shear.
590    o add a quick fix for A/B checkpointing in OFFLINE mode
591    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
592      end-run around the C/Fortran linking horror in eesup/src/timers.F
593    o added pkg/runclock: allows user to terminate run based on wall clock
594    o added non-hydrostatic scaling parameter: nh_am2
595    o pkg/my82: futile attempt to make results compiler-independent by adding
596      some "_d 0", etc. no effect.
597    o for mnc output, fill the 'T' coordinate var with myTime and create a
598      separate 'iter' variable for iteration count
599    o pkg/diagnostics:
600      add new capability: output of Global/Regional & per-level statistics ;
601      tested against monitor output (including land & thSIce) on various exp.
602    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
603    
604    checkpoint57h_done
605      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
606      data.diagnostics, data.gchem, data.ptracers) is done.
607    
608    o pkg/diagnostics: prepare for Global/Regional statistics.
609      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
610    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
611      and rename it: DIFFERENT_MULTIPLE
612    
613    checkpoint57h_post
614    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
615    o pkg/diagnostics: change output frequency, now in seconds (instead
616      of Nb of iterations). This requires to change data.diagnostics.
617    checkpoint57h_pre
618    
619    o in mnc, let the user create the output dir if both mnc_outdir_date
620      and mnc_outdir_num are false
621    o add fflags() to pkg/diagnostics which allows one to specify, on a
622      per-file basis, the file precision [default behavior is unchanged]
623    o added diagnostics to pkg/kpp, including computation of mixed layer
624      depth based on a temperature/density criterion
625    o updated verification/natl_box to test the new pkg/kpp diagnostics
626    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
627    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
628    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
629      not mnc -- this mistake was found by JMC and is now corrected
630    
631    checkpoint57g_post
632    o add Adams-Bashforth 3rd Order time stepping:
633      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
634      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
635    checkpoint57g_pre
636    
637    o make lambda[Theta,Salt]ClimRelax spatially varying
638      (default remains spatially uniform constant based on tau)
639    o added new control variables
640      * init. uVel, vVel, etanN
641      * lambda[Theta,Salt]ClimRelax
642    o separate masks used for ctrl_pack/unpack 'from write_grid' output
643      (suggested by G. Forget)
644    
645    checkpoint57f_post
646    o add parameter "baseTime" = model base time = time at iteration zero
647      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
648      account for baseTime shift
649    o move Coriolis arrays from PARAMS.h to GRID.h
650    checkpoint57f_pre
651    
652    o mnc-ifying the seaice package
653    o introduced an alternative length scale calculation for use in the limiting
654      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
655    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
656    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
657      as well as grad(vort3).  Made it compatible with both approximate form
658      for the cubed sphere and full form of these gradients.  Added flag
659      useFullLeith to select between approximate and full form.  
660    o add "d0" in getcon.F to reduce differences between compilers/platforms
661      update output.txt of exp. fizhi-gridalt-hs
662    o change port_rand funtion to allow to set the seed.
663    o fix obscure MNC bug involving conversion between reals and integers
664      - it caused no problems with certain (eg. gcc, ifc) compilers but the
665        new version is now more standards-compliant
666    o adjoint-related modifications
667      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
668      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
669      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
670    
671    checkpoint57e_post
672    o Adding eddy stress controls a la Ferreira et al.
673    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
674    
675    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
676      update output.txt of exp. fizhi-gridalt-hs
677    o add more "Z" dimensions and associated coordinate vars to MNC
678    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
679    o parameter calendarDumps: when set, approximate months (30-31 days) and years
680      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
681      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
682      months and years.  Requires pkg/cal.
683    o diagnostics: add pickup functionality
684      - off by default for backwards compatibility
685      - current version only uses MDSIO -- MNC will be added
686    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
687    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
688    
689    checkpoint57d_post
690    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
691    o modify verification/ideal_2D_oce so that it tests the creation of mnc
692      output from the diagnostics package
693    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
694  o make genmake2 more portable by using ".$FS" instead of ".f" for more  o make genmake2 more portable by using ".$FS" instead of ".f" for more
695    of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)    of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
696  o add coordinate variables to the MNC output from the diagnostics package  o add coordinate variables to the MNC output from the diagnostics package

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