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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.684 by jmc, Tue Jun 20 21:20:25 2006 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  o adding precip control xx_precip  o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
8  o moved ptracer ctrl index 17 -> 32  o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
9    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
10       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
11    o tracer advection:
12     - clean-up and simplify calc_common_factors.F
13     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
14       advection subroutine (but still not used within DST advection S/R)
15    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
16    
17    checkpoint58j_post
18    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
19      from file (collects calls previously in FORWARD_STEP)
20    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
21    o adjoint store dir. adjusted accordingly
22    o genmake2
23      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
24    
25    checkpoint58i_post
26    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
27      on wind stress (SEAICEstressFactor defaults to 1.)
28    o Total number of Timers is finite (<=40): comment out 2 non-essential one
29      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
30    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
31      on CS-grid: no longer loosing mass.
32    o exf & curvilinear-grid: no longer modify longitude xC & xG.
33    o pkg/ggl90: fix sloppy output and fix a bug
34    o pkg/seaice: added SEAICEuseEVPpickup parameter
35      - Set to false in order to start EVP solver with
36        non-EVP pickup files when using SEAICEuseEVP
37      - fix sign error in diffusion in seaice_calc_rhs
38    
39    checkpoint58h_post
40    * Modifications for bottom topography control
41      o replace hFacC by _hFacC at various places
42      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
43      o add non-self-adjoint cg2d_nsa
44      o update autodiff support routines
45      o re-initialise hfac after ctrl_depth_ini
46      o works for 5x5 box, doesnt work for global_ocean.90x40x15
47    * Adding verification for 5x5 box (4-layer) bottom topography control
48    
49    checkpoint58g_post
50    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
51       used for mean seasonal cycle, mean diurnal cycle); add an example
52       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
53    o pkg/ggl90:
54      - add parameter (minimum surface kinetic energy)
55      - fix bug (avoiding division by zero)
56    o couple pkg/thsice to pkg/seaice:
57      - modify advection in seaice to accomodate new scalar fields to be advected
58      - only muliDimAdection scheme work with seaice/thsice
59      - mapping of thsice-variables to seaice-variables, back and forth
60      - does not break the verification experiments, but does not give the
61        desired results either
62    o pkg/seaice
63      - make (default) second order advection a bit less confusing?
64    
65    checkpoint58f_post
66    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
67      to pkg/seaice):
68      - new routines thsice_map_exf and thsice_get_exf provide the interface
69      - add an additional formal parameter to thsice_solve4temp
70    o pkg/exf:
71      - add new fields wspeed, snowprecip (to be able to couple to thsice)
72      - correct Stefan-Boltzmann constant
73      - new parameter for longwave surface emittance
74      - separate some stuff from exf_bulkformulae into new routines  
75        exf_radiation, exf_wind
76      - add new parameters and constants: longwave emissivity for ocean, ice
77        and snow, evaporation parameters over ice
78      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
79        either wind from stress or stress from wind
80    o pkg/thSIce:
81    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
82    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
83       and THSICE_CALC_THICKN
84    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
85    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
86      to make debugging easier.
87    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
88    o pkg/bulk_force:
89      - clean-up comments and parameters ;
90      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
91    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
92      generate new output for test-experiment: aim.5l_cs.thSI
93    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
94      testreport accordingly
95    
96    checkpoint58e_post
97    o SEAICE_CGRID adjoint done
98    o R_STAR adjoint implemented.
99      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
100      * need to sort out init. of h0facc, etc.
101    o Make pkg/profile fully independent of ecco,cost, etc. stuff
102      to be able to use it in pure forward.
103    
104    checkpoint58d_post
105    o upgrade simple test-experiment to tutorial example:
106     step.1: duplicate the experiment and (step.2) will remove the old copy.
107      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
108      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
109      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
110      tutorial_global_oce_biogeo    <- copy of dic_example
111      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
112      tutorial_plume_on_slope       <- copy of plume_on_slope
113      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
114      tutorial_global_oce_optim     <- empty for now (David ?)
115      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
116     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
117    o correct a sign problem in cost_scat.F
118    o obcs and ptracers: fix boundary conditions for advections schemes
119      with larger stencil
120    o thsice adjoint: start
121    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
122      completeness
123    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
124      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
125    o ptracers adjoint:
126      * avoid extensive recomputatations
127      * fix missing re-init. of gptr (missed by TAF)
128    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
129      me to turn off the excessive output to STDOUT that this package produces
130    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
131      and add those terms in Vector-Invariant formulation.
132    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
133      if the control period (xx_hfluxperiod etc) is 0
134    o in profiles pkg, clean routines and fix details
135    o in ecco pkg, reading ssh data:
136      fix problem in case the model does not start at iter0=0
137    o fix mnc-pickup/restart for ptracers
138    o new package prifiles:
139      code to compute profile-based cost by Gael Forget
140      (modifs in ecco, ctrl, autodiff)
141    o Benign bug fix in initialization (spotted by M. Mazloff) of
142      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
143    
144    checkpoint58c_post
145    o adjoint: finish NLFS adjoint and provide reference output in
146      verification/global_ocean.90x40x15/results_ad_nlfs
147    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
148      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
149      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
150      with SEAICE_CGRID defined.
151    o move calendarDumps from "data" to "data.cal" and clean-up the code
152      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
153    o add useEXF & useCAL flags (for now, set in hard-coded way)
154    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
155      (were missing in NH mode, and wrong in quasihydrostatic mode).
156      waiting for Chris updated version of calc_gw to add those CALLs.
157    o fix bug in quasihydrostatic S/R ;
158      add a test for this option: global_ocean.90x40x15.qshyd
159    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
160      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
161    o add on/off flag useOffLine for package OFFLINE
162    o seaice:
163      - modify advection so that it works also on the C-grid
164      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
165        problem in multi-tile runs with C-grid
166      - add flags for clipping ice velocities and/or masking solver forcing
167      - fix drag (ocean on ice) formulation and a bug that caused noise in the
168        C-grid solver
169      - added a few comments to seaice_diffusion.F
170      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
171        are now exclusive)
172      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
173        required re-ordering the code a little:
174       + make DAIRN global variable (defined in SEAICE)
175       + move computation of the viscosities eta and zeta into a new separate
176         routine (because I need to recompute them in seaice_ocean_stress.F)
177    
178    checkpoint58b_post
179    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
180      update output.txt of exp. aim.5l_cs.thSI
181    o various mnc cleanups and improvements:
182      + shrink lookup tables by factor of ~4
183      + better error reporting when running out of lookup space
184      + able to handle longer path/file names (up to 500 chars)
185    o adjoint:
186      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
187      - TBD: "hidden" mom_vecinv recomp. in dynamics
188    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
189     (allow to differentiate between forcing components using new integer flags:
190      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
191     and add new flag to put Dissipation tendency out of Adams-Bashforth.
192    o ecco
193      - enable trend removal from SSH anomaly obs.
194    o adjoint
195      - a fix for PmEpR when #undef EXACT_CONSERV
196      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
197      - try to fix "hidden" recomp. in forward_step for NLFS
198        (NLFS seems broken sometimes after I checked it in)
199    o seaice:
200     - add c-grid version of the dynamic solver:
201       + three new routines that are the c-grid substitute lsr, dynsolver
202         and ostres
203       + put a few fields that were local to dynsolver into global common
204         blocks, so that I can move the computation of stresses etc into
205         seaice_lsr (saves coding but may break the adjoint).
206     - replace more hardwired parameters by runtime parameters
207     - add ice masks that mask the rhs of the implicit solvers where there
208       is no ice (commented out in seaice_dynsolver, because i am not sure
209       if this works properly), eventually this should replace the clipping
210       of ice velocities in seaice_dynsolver to +/-40cm/s.
211    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
212      include it only where its needed
213    o move balancing of fluxes before the call of external_forcing_surf
214    o seaice:
215      - correct units of turning angles (now they are really in degrees)
216      - move computation of GWATX/Y out of main routine into dynsolver
217      - initialize GWATX/Y in seaice_init
218    o Apply mask on Fresh-Water flux (needed for SSH forcing).
219      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
220    o seaice: add runtime flags for turning angles (default to zero)
221    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
222      and trend from exf forcing and ctrl control adjustments
223    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
224      (since checkpoint57x_post)
225    o change the default rotation period to 86164.s = the Earth rotation
226    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
227      and based on a reference stratification. Tested within hs94.cs-32x32x5.
228    o seaice advection: add code for choosing between the default (2nd order
229      central differences) and multiDim advection schemes provided by
230      pkg/generic_advdiff
231    o seaice:
232      - removed all references to SEAICE_GRID.h fields from
233        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
234        (cubed-sphere configuration will change a little)
235      - grid computations in seaice_init are obsolete now.
236      - cleaned up code a little so that is easier to read (hopefully).
237      - added new (better?) discretizations of default advection and diffusion
238        (turn on with SEAICEuseFluxForm)
239      - replace 1 in 3d global fields by kSurface in growth.F
240      
241    checkpoint58a_post
242    o seaice:
243      - bug fix in advect.F
244    o shelfice:
245      - separate shelfice load anomaly from pload (breaks with time
246        dependent forcing), => introduce constant field shelficeLoadAnomaly.
247        Its default is 0., but it may be computed more cleverly from (unknown)
248        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
249        done offline. A good approximation of the pressure load anomaly is
250        necessary to avoid large initial adjustment processes underneath
251        deep-reaching shelfice.
252      - small fix in ISOMIP shelfice_thermodynamics
253      - add more sophisticated thermodynamics of Hellmer (1989), this is
254        now the default
255      - give a few constants more intuitive names
256    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
257      if bulk formulae are used in long integration (especially EmPmR). Turn
258      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
259      if balancePrintMean, the imbalance that is substracted is printed to
260      STDOUT.
261    o fix bug (typo) in obcs_apply_eta.F
262    o add a new package shelfice which enables us to model the circulation
263      underneath shelf-ice with draughts of hundreds of meters.
264     - works
265     - to do: + include improved thermodynamics
266              + check whether kSurfC (from model/inc/SURFACE.h) can be used
267                instead of new field kTopC
268              + can we use topoFile, Ro_surf and existing code in ini_depth.F
269                instead of new field R_shelfIce and new code in ini_depth.F
270                and ini_mask_etc.F?
271              + adjust vertical mixing schemes?
272    o seaice pkg:
273     - add a cpp-flag to include a simple formula for a salinity dependent
274       freezing point of sea water at the surface
275     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
276       meridional stresses are now different (and hopefully correct)
277    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
278       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
279       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
280    o pkg/diagnostics: add options and parameters for regional-statistics
281       diagnostics ; define regions by reading a region-mask from a file
282       (might add other options later)
283    o pkg/bulk_force:
284     - add option and parameters to use AIM surface-flux formulae.
285     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
286       others forcing fields (defined in PARM05, parameter file "data") are loaded
287       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
288     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
289     - use the right EXCH call for uwind,vwind (to work on CS-grid).
290     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
291       and parameters (note: calcWindStress replaces .NOT.readwindstress).
292     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
293    
294    checkpoint58
295    o add "--embed-source" option to genmake2 which, when the supporting
296      tools can be compiled (as determined by genmake2) will turn on the
297      embed_files package which then embeds the entire MITgcm source code
298      (*.[fFhc] + Makefile) used for the build within the executable
299      - requested by CNH but off by default
300      - adds a paltry <9MB to the mitgcmuv executable in most cases
301      - only writes the output when useEMBEDSRC in eedata is true
302    o clean up 3-dim. relaxation codes:
303      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
304      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
305      * Thanks to Tom Haine for testing!
306    
307    checkpoint57z_post
308    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
309      affects output (@ truncation level) of exp. plume_on_slope ; updated.
310    o fix the pickup behavior for obcs in combination with ptracers
311    o fix a bug in ptracers_external_fields_load
312    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
313      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
314    o transfered surface NH pressure to eta field (if exactConserv).
315    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
316         and update lab_sea output.txt file.
317    o completing 3-dim. relaxation code: additional term
318         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
319      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
320      * At compile time, in "EXF_OPTIONS.h" set
321          #define  ALLOW_CLIMTEMP_RELAXATION
322          #define  ALLOW_CLIMSALT_RELAXATION
323      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
324          tauThetaClimRelax3Dim = 15552000.0,
325          tauSaltClimRelax3Dim  = 15552000.0,
326      * 3 cases:
327          1) Use a constant-in-time 3-dim. field
328          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
329          3) Real-time relax. to time-evolving prescribed field
330    o Adding Laplacian-type smoothness constraint on
331      initial and boundary (forcing) controls (ic, bc)
332      * enable at compile-time via
333        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
334      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
335      * Absolute scale somewhat unclear so far
336      * no area weighting was included since no other cost term does so far
337    
338    checkpoint57y_post
339    First step for a NLFS adjoint
340    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
341    o new init. routines for calc_r_star, calc_surf_dr
342    o still need to deal with ini_masks_etc
343    o testreport seemed happy
344    checkpoint57y_pre
345    
346    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
347    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
348    o add new offset feature to offline pkg (plus minor cleanup)
349    o cfc fixes for final year of integration
350    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
351      be in GCHEM_OPTIONS).
352    
353    checkpoint57x_post
354    o fix testreport Pb in multiple test experiment.
355    o cleanup our namelist syntax in verification:
356      - make it more F95 standards compliant (some work still needed)
357      - allows the vast majority of our tests to work with gfortran
358    o Non-Hydrostatic:
359     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
360     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
361    o Allow to apply AB on T,S rather than on AB(gT,gS):
362     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
363     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
364       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
365     - need a "clever" read_pickup to restart from the other AB formulation
366    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
367    o remove some unused variables (reduces number of compiler warnings)
368    o adjoint
369      * Disable useVariableViscosity for adjoint for time being
370        (there are a number of extensive recomputations)
371      * Initialize certain variables needed for adjoint
372    
373    checkpoint57w_post
374    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
375                 fix the singleCpuIO RS version of MDSWRITEFIELD
376       and add a WARNING if using globalFiles=T with multi-processors.
377    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
378      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
379    o tracer advection scheme:
380      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
381       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
382       was not very convenient).
383      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
384       (further tests needed for the implicit DST & Flux-Limiter schemes).
385    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
386      and sRef for convenience, handy, when you want to initialize
387      ptracers in a large domain with a constant non-zero value. Also,
388      untangle ptracers_init.F a little.
389    
390    checkpoint57v_post
391    o change dome exp. to use variable viscosity in side-drag terms.
392    o remove all the files from the cfc_offline test since they are now
393      incorporated into tutorial_cfc_offline which has been producing
394      identical results for a few days of testing
395    o add new parameter: sideDragFactor to enable half-slip-side BC
396      and change side-drag S/R to use viscosity from mom_calc_visc
397      (can switch back by setting sideDragFactor=0.); affects results at
398      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
399       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
400    o vorticity & strain are now computed without masking, to account for
401      no-slip-side BC in variable viscosity calculation ; mask is applied
402      anyway later on, before computing advection/coriolis terms.
403    o modify exp4 to test new obcs support for reading from external files
404      and for passive tracers
405    o fix behavior of ptracers_monitor when monitor output is written to a
406      netcdf-file; still not independent of monitor.F (writes in the same
407      file).
408    o change default value of tRef (put a uniform, meaningful value for ocean
409      & atmos) and initialize sRef (was missing, as Martin mentioned).
410    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
411      to be proportional to enstrophy dissipation length.  Thus,
412       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
413      This is now consistent with Smagorinsky and with the manual.
414    
415    checkpoint57u_post
416    o OBCS and PTRACERS: add open boundary support for passive tracers
417      - either use homogenous (pseudo) v.Neumann conditions or prescribe
418        OB-values from file; this is not different from the way theta and salinity
419        are treated
420      - however, Orlanski-radiation conditions are not supported, and the model
421        will stop if you use pTracers and Orlanski at the same time.
422      - beefed up the rountine obcs_external_fields_load: now only those open
423        boundary values are overwritten with values from files for which there
424        are really files, otherwise the OB-fields remain untouched. This makes
425        it possible to use different OBs at different ends of the domain (as
426        with EXF)
427    o reduce number of exch calls in shap_filt (s2).
428    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
429      truncation level) 4/5 MLAdjust test results (11&12 digits match).
430    
431    checkpoint57t_post
432    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
433    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
434      same truncation, independent of the face number: affects affects several
435      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
436    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
437      note that biharmonic viscosity + no-slip was not tested in any experiment.
438    o fix bug in non-linear free-surf side-drag ; generate new output for
439      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
440    o make mnc honor the writeBinaryPrec flag for most kinds of output
441    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
442    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
443      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
444    o add brackets in multi-terms sum to get same truncation, independent of
445      the face number (manage to get exactly same value of gU,gV at the cs-edge)
446      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
447    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
448      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
449      a maximum grid-scale Reynolds number.  Also, changes all length calculations
450      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
451      Suggested values of viscosity parameters found in mom_calc_visc.
452      Many new viscosity diagnostics available.
453    
454    checkpoint57s_post
455    o Add clearing-house for viscosity calculations, mom_calc_visc and
456      correct numerous bugs in LeithD and Smagorinsky discretizations.  
457      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
458      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
459      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
460      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
461      The Strain-Tension form is now called with useStrainTensonVisc=.true.
462      ViscAhStrain and viscAhTension are now retired.
463    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
464    o In response to JMC's bug report, genmake2 now ignores any soft-links
465      that it finds in the *current* directory when searching for files.
466      Soft-links found in any other source directories will still work as
467      they did before.
468    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
469      a C routine to unlimit the stack size
470    o mnc-ify pkg/aim snapshot vars
471    o mnc-ify pkg/land as requested by Daniel
472    o various changes to mnc including:
473      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
474      - output can now be grouped so that all files within a group
475          change the ITER portion of their names in lock-step together
476      - can now read ("global") PER-FACE (in addition to PER-TILE) files
477          and works with both EXCH1 and EXCH2 (but needs more testing)
478      - writing works for all verification test cases w/ g77 on Linux
479    
480    checkpoint57r_post
481    o make MNC variable initialization happen earlier
482    o add diagnostics for (almost) each term of the momentum Eq.
483    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
484    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
485    o remove MINIMAL_TAVE_OUTPUT option ;
486      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
487    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
488      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
489    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
490    o add time-dependent SST, SSS control
491    o cost terms in ecco/ modularized (new cost_generic.F)
492    o cost_averages routines are modularized (new cost_averagesgeneric.F)
493    o new infrastructure for seaice model vs. obs misfits in seaice/
494      * driver from the_main_loop.F is seaice_cost_driver.F
495      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
496      * gradient check in Exp. 6a of natl_box_adjoint/
497    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
498      (see README file)
499    
500    checkpoint57q_post
501    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
502    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
503      - bug was reported by Jean-Michel and Ian Fenty
504    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
505      update exp. cpl_aim+ocn output.
506    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
507      Needed for high-res. runs with large global files
508      to be able to limit tapelev size
509    o Changed some tests for adjoint:
510      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
511      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
512      * global_ocean.90x40x15/ back to default 3-level checkpointing
513    o Modifications to enable scripted COMMON to MODULE conversion
514      * verification/OpenAD/code/ has necessary scripts and description;
515      * converts, compiles and runs successfully;
516    
517    checkpoint57p_post
518    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
519    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
520      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
521    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
522    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
523      (was already the case for dissipation with mom_vecinv,
524       and also the case for grad.PhiHyd when staggered-timeStep)
525      This will allow to put dissipation out-off the AB time-stepping.
526     Unfortunately, affects truncation error. Update output of exp. that "fails"
527      (cg2d matching number) and leave the others for later: front_relax(10),
528      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
529      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
530    
531    checkpoint57o_post
532    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
533      (2) its ready to be documented during the 20050801 DocFest
534    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
535      for ideal_2D_oce and lab_sea on linux_ia32_g77
536    o set to #undef CTRL_SET_OLD_MAXCVARS_30
537      in global1x1_tot/code_seaice_adj to access indices 32, 33
538      (worth another tag)
539    
540    checkpoint57n_post
541    o adding precip control xx_precip 32
542    o adding swflux control xx_swflux 33
543    o Replacing 10 forcing penalty cost routines by 1 generic.
544    o Implementing partitioning in time-mean and variable adjustment
545      for atmos. state.
546    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
547  o in natl_box_adjoint:  o in natl_box_adjoint:
548    * updated: results_bulk/    * updated exp 1 to 10
549    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
550    o updated global1x1/*_seaice_adj/
551      to incorporate latest changes
552    o enable useSingleCpuIO for mdsio vector routines
553      (applies in particular to tapelev I/O)
554    o removed inefficient K-loop in all active_file*control*.F
555    
556  checkpoint57m_post  checkpoint57m_post
557  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
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