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revision 1.525 by edhill, Sat Jul 30 00:58:40 2005 UTC revision 1.716 by mlosch, Mon Aug 14 17:29:53 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 shelfice:
8     - add a simple boundary layer scheme to reduce noise
9     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
10    checkpoint58n_post
11    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
12       local variable (not in common block).
13    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
14      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
15      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
16        to work with SingleCpuIO.
17    o add "_d 0" to real constant of pkg/cfc subroutines ;
18       update exp. cfc_exemple & tutorial_cfc_offline output files.
19    o multi-threading and IO:
20      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
21        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
22      - barrier before and after reading.
23      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
24      - avoid using MDS_WRITELOCAL for LAND pkg output.
25      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
26        common-block variables ; Allows multi-threading with master-thread IO.
27    o change default MAX_NO_THREADS from 32 to 4 ;
28      and stop cleanly when MAX_NO_THREADS is too small.
29    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
30    
31    checkpoint58m_post
32    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
33       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
34    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
35       keep global_ocean.90x40x15 (for AD testing) with former secondary test
36       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
37    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
38        add MITgcm_tutorials (= code + all the tutorials)
39    o ecco, option to compute cost for total ssh (mean+anom)
40    o consistent with addition of ptracer and ssh in pkg/profiles
41    o profiles: adding ptracer and ssh
42    o testreport: change multi-test output-file name
43      (from output.txt.{name} to output.{name}.txt)
44    o profiles: now ok for mutli-tiles case
45    o seaice: add 4 parameters for different advection schemes for area,
46      (effective) seaice thickness, enthalphy, and snow height. Their default
47      is the standard parameter SEAICEadvScheme
48    o calc_gw:
49     - add cosFacU in zonal viscous flux (harmonic.visc.).
50     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
51       of tutorial_plume_on_slope.
52    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
53    o calc_gw: true flux-form, account for horizontal grid spacing.
54      update rotating_tank results, but not plume_on_slope (affected at
55      truncation level, 11 digits).
56    
57    checkpoint58l_post
58    o calc_gw:
59     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
60     - remove side-drag for now (need to fix it); update plume_on_slope results.
61     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
62    o commit code to make SST/SSS weights spatially variable
63      (based on either variable in-situ or variable initial T/S weights)
64    o pkg/ecco:
65      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
66        now based on horizontally varying weights wthetaLev, wsaltLev
67      * cost_averagesflags now returns year indices in addition to day, month
68      * sflux balance is performed on annual basis
69        (sflxumm, sfluxmm2, bal_sfluxmm)
70      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
71        including separate counting and multipliers
72    o pkg/rbcs
73      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
74    
75    checkpoint58k_post
76    o testreport:
77     - always build in dir. "build" (if not there, mkdir build instead of building
78       & running in input)
79     - run in dir run (if it exists), in build otherwise.
80     - call prepare_run (if input/prepare_run exists)
81     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
82    o pkg/exf modifications to interpolation and rotation routines for more
83       reasonable treatment of North Pole singularity: for tracers North Pole
84       value is set to northernmost zonal-mean value, for zonal velocity it is
85       set to zero, and for meridional velocity it is set to northernmost value.
86    o pkg/exf/exf_check_range.F
87     - add tile index to diagnostics and move stop statement to the very
88       end of the routine.
89    o pkg/diagnostics: (diagnostics_main_init.F)
90      define title of isomorphic variables according to the current config.
91    o pkg/thsice with pkg/seaice dynamics:
92    - fix domain of computation (interior only, required for exf) and do exchanges
93    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
94    o towards a standard way of dealing with multi-threading in MONITOR
95      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
96    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
97       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
98    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
99    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
100    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
101       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
102    o tracer advection:
103     - clean-up and simplify calc_common_factors.F
104     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
105       advection subroutine (but still not used within DST advection S/R)
106    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
107    
108    checkpoint58j_post
109    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
110      from file (collects calls previously in FORWARD_STEP)
111    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
112    o adjoint store dir. adjusted accordingly
113    o genmake2
114      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
115    
116    checkpoint58i_post
117    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
118      on wind stress (SEAICEstressFactor defaults to 1.)
119    o Total number of Timers is finite (<=40): comment out 2 non-essential one
120      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
121    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
122      on CS-grid: no longer loosing mass.
123    o exf & curvilinear-grid: no longer modify longitude xC & xG.
124    o pkg/ggl90: fix sloppy output and fix a bug
125    o pkg/seaice: added SEAICEuseEVPpickup parameter
126      - Set to false in order to start EVP solver with
127        non-EVP pickup files when using SEAICEuseEVP
128      - fix sign error in diffusion in seaice_calc_rhs
129    
130    checkpoint58h_post
131    * Modifications for bottom topography control
132      o replace hFacC by _hFacC at various places
133      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
134      o add non-self-adjoint cg2d_nsa
135      o update autodiff support routines
136      o re-initialise hfac after ctrl_depth_ini
137      o works for 5x5 box, doesnt work for global_ocean.90x40x15
138    * Adding verification for 5x5 box (4-layer) bottom topography control
139    
140    checkpoint58g_post
141    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
142       used for mean seasonal cycle, mean diurnal cycle); add an example
143       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
144    o pkg/ggl90:
145      - add parameter (minimum surface kinetic energy)
146      - fix bug (avoiding division by zero)
147    o couple pkg/thsice to pkg/seaice:
148      - modify advection in seaice to accomodate new scalar fields to be advected
149      - only muliDimAdection scheme work with seaice/thsice
150      - mapping of thsice-variables to seaice-variables, back and forth
151      - does not break the verification experiments, but does not give the
152        desired results either
153    o pkg/seaice
154      - make (default) second order advection a bit less confusing?
155    
156    checkpoint58f_post
157    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
158      to pkg/seaice):
159      - new routines thsice_map_exf and thsice_get_exf provide the interface
160      - add an additional formal parameter to thsice_solve4temp
161    o pkg/exf:
162      - add new fields wspeed, snowprecip (to be able to couple to thsice)
163      - correct Stefan-Boltzmann constant
164      - new parameter for longwave surface emittance
165      - separate some stuff from exf_bulkformulae into new routines  
166        exf_radiation, exf_wind
167      - add new parameters and constants: longwave emissivity for ocean, ice
168        and snow, evaporation parameters over ice
169      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
170        either wind from stress or stress from wind
171    o pkg/thSIce:
172    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
173    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
174       and THSICE_CALC_THICKN
175    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
176    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
177      to make debugging easier.
178    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
179    o pkg/bulk_force:
180      - clean-up comments and parameters ;
181      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
182    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
183      generate new output for test-experiment: aim.5l_cs.thSI
184    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
185      testreport accordingly
186    
187    checkpoint58e_post
188    o SEAICE_CGRID adjoint done
189    o R_STAR adjoint implemented.
190      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
191      * need to sort out init. of h0facc, etc.
192    o Make pkg/profile fully independent of ecco,cost, etc. stuff
193      to be able to use it in pure forward.
194    
195    checkpoint58d_post
196    o upgrade simple test-experiment to tutorial example:
197     step.1: duplicate the experiment and (step.2) will remove the old copy.
198      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
199      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
200      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
201      tutorial_global_oce_biogeo    <- copy of dic_example
202      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
203      tutorial_plume_on_slope       <- copy of plume_on_slope
204      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
205      tutorial_global_oce_optim     <- empty for now (David ?)
206      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
207     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
208    o correct a sign problem in cost_scat.F
209    o obcs and ptracers: fix boundary conditions for advections schemes
210      with larger stencil
211    o thsice adjoint: start
212    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
213      completeness
214    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
215      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
216    o ptracers adjoint:
217      * avoid extensive recomputatations
218      * fix missing re-init. of gptr (missed by TAF)
219    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
220      me to turn off the excessive output to STDOUT that this package produces
221    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
222      and add those terms in Vector-Invariant formulation.
223    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
224      if the control period (xx_hfluxperiod etc) is 0
225    o in profiles pkg, clean routines and fix details
226    o in ecco pkg, reading ssh data:
227      fix problem in case the model does not start at iter0=0
228    o fix mnc-pickup/restart for ptracers
229    o new package prifiles:
230      code to compute profile-based cost by Gael Forget
231      (modifs in ecco, ctrl, autodiff)
232    o Benign bug fix in initialization (spotted by M. Mazloff) of
233      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
234    
235    checkpoint58c_post
236    o adjoint: finish NLFS adjoint and provide reference output in
237      verification/global_ocean.90x40x15/results_ad_nlfs
238    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
239      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
240      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
241      with SEAICE_CGRID defined.
242    o move calendarDumps from "data" to "data.cal" and clean-up the code
243      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
244    o add useEXF & useCAL flags (for now, set in hard-coded way)
245    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
246      (were missing in NH mode, and wrong in quasihydrostatic mode).
247      waiting for Chris updated version of calc_gw to add those CALLs.
248    o fix bug in quasihydrostatic S/R ;
249      add a test for this option: global_ocean.90x40x15.qshyd
250    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
251      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
252    o add on/off flag useOffLine for package OFFLINE
253    o seaice:
254      - modify advection so that it works also on the C-grid
255      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
256        problem in multi-tile runs with C-grid
257      - add flags for clipping ice velocities and/or masking solver forcing
258      - fix drag (ocean on ice) formulation and a bug that caused noise in the
259        C-grid solver
260      - added a few comments to seaice_diffusion.F
261      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
262        are now exclusive)
263      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
264        required re-ordering the code a little:
265       + make DAIRN global variable (defined in SEAICE)
266       + move computation of the viscosities eta and zeta into a new separate
267         routine (because I need to recompute them in seaice_ocean_stress.F)
268    
269    checkpoint58b_post
270    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
271      update output.txt of exp. aim.5l_cs.thSI
272    o various mnc cleanups and improvements:
273      + shrink lookup tables by factor of ~4
274      + better error reporting when running out of lookup space
275      + able to handle longer path/file names (up to 500 chars)
276    o adjoint:
277      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
278      - TBD: "hidden" mom_vecinv recomp. in dynamics
279    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
280     (allow to differentiate between forcing components using new integer flags:
281      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
282     and add new flag to put Dissipation tendency out of Adams-Bashforth.
283    o ecco
284      - enable trend removal from SSH anomaly obs.
285    o adjoint
286      - a fix for PmEpR when #undef EXACT_CONSERV
287      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
288      - try to fix "hidden" recomp. in forward_step for NLFS
289        (NLFS seems broken sometimes after I checked it in)
290    o seaice:
291     - add c-grid version of the dynamic solver:
292       + three new routines that are the c-grid substitute lsr, dynsolver
293         and ostres
294       + put a few fields that were local to dynsolver into global common
295         blocks, so that I can move the computation of stresses etc into
296         seaice_lsr (saves coding but may break the adjoint).
297     - replace more hardwired parameters by runtime parameters
298     - add ice masks that mask the rhs of the implicit solvers where there
299       is no ice (commented out in seaice_dynsolver, because i am not sure
300       if this works properly), eventually this should replace the clipping
301       of ice velocities in seaice_dynsolver to +/-40cm/s.
302    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
303      include it only where its needed
304    o move balancing of fluxes before the call of external_forcing_surf
305    o seaice:
306      - correct units of turning angles (now they are really in degrees)
307      - move computation of GWATX/Y out of main routine into dynsolver
308      - initialize GWATX/Y in seaice_init
309    o Apply mask on Fresh-Water flux (needed for SSH forcing).
310      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
311    o seaice: add runtime flags for turning angles (default to zero)
312    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
313      and trend from exf forcing and ctrl control adjustments
314    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
315      (since checkpoint57x_post)
316    o change the default rotation period to 86164.s = the Earth rotation
317    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
318      and based on a reference stratification. Tested within hs94.cs-32x32x5.
319    o seaice advection: add code for choosing between the default (2nd order
320      central differences) and multiDim advection schemes provided by
321      pkg/generic_advdiff
322    o seaice:
323      - removed all references to SEAICE_GRID.h fields from
324        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
325        (cubed-sphere configuration will change a little)
326      - grid computations in seaice_init are obsolete now.
327      - cleaned up code a little so that is easier to read (hopefully).
328      - added new (better?) discretizations of default advection and diffusion
329        (turn on with SEAICEuseFluxForm)
330      - replace 1 in 3d global fields by kSurface in growth.F
331      
332    checkpoint58a_post
333    o seaice:
334      - bug fix in advect.F
335    o shelfice:
336      - separate shelfice load anomaly from pload (breaks with time
337        dependent forcing), => introduce constant field shelficeLoadAnomaly.
338        Its default is 0., but it may be computed more cleverly from (unknown)
339        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
340        done offline. A good approximation of the pressure load anomaly is
341        necessary to avoid large initial adjustment processes underneath
342        deep-reaching shelfice.
343      - small fix in ISOMIP shelfice_thermodynamics
344      - add more sophisticated thermodynamics of Hellmer (1989), this is
345        now the default
346      - give a few constants more intuitive names
347    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
348      if bulk formulae are used in long integration (especially EmPmR). Turn
349      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
350      if balancePrintMean, the imbalance that is substracted is printed to
351      STDOUT.
352    o fix bug (typo) in obcs_apply_eta.F
353    o add a new package shelfice which enables us to model the circulation
354      underneath shelf-ice with draughts of hundreds of meters.
355     - works
356     - to do: + include improved thermodynamics
357              + check whether kSurfC (from model/inc/SURFACE.h) can be used
358                instead of new field kTopC
359              + can we use topoFile, Ro_surf and existing code in ini_depth.F
360                instead of new field R_shelfIce and new code in ini_depth.F
361                and ini_mask_etc.F?
362              + adjust vertical mixing schemes?
363    o seaice pkg:
364     - add a cpp-flag to include a simple formula for a salinity dependent
365       freezing point of sea water at the surface
366     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
367       meridional stresses are now different (and hopefully correct)
368    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
369       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
370       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
371    o pkg/diagnostics: add options and parameters for regional-statistics
372       diagnostics ; define regions by reading a region-mask from a file
373       (might add other options later)
374    o pkg/bulk_force:
375     - add option and parameters to use AIM surface-flux formulae.
376     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
377       others forcing fields (defined in PARM05, parameter file "data") are loaded
378       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
379     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
380     - use the right EXCH call for uwind,vwind (to work on CS-grid).
381     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
382       and parameters (note: calcWindStress replaces .NOT.readwindstress).
383     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
384    
385    checkpoint58
386    o add "--embed-source" option to genmake2 which, when the supporting
387      tools can be compiled (as determined by genmake2) will turn on the
388      embed_files package which then embeds the entire MITgcm source code
389      (*.[fFhc] + Makefile) used for the build within the executable
390      - requested by CNH but off by default
391      - adds a paltry <9MB to the mitgcmuv executable in most cases
392      - only writes the output when useEMBEDSRC in eedata is true
393    o clean up 3-dim. relaxation codes:
394      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
395      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
396      * Thanks to Tom Haine for testing!
397    
398    checkpoint57z_post
399    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
400      affects output (@ truncation level) of exp. plume_on_slope ; updated.
401    o fix the pickup behavior for obcs in combination with ptracers
402    o fix a bug in ptracers_external_fields_load
403    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
404      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
405    o transfered surface NH pressure to eta field (if exactConserv).
406    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
407         and update lab_sea output.txt file.
408    o completing 3-dim. relaxation code: additional term
409         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
410      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
411      * At compile time, in "EXF_OPTIONS.h" set
412          #define  ALLOW_CLIMTEMP_RELAXATION
413          #define  ALLOW_CLIMSALT_RELAXATION
414      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
415          tauThetaClimRelax3Dim = 15552000.0,
416          tauSaltClimRelax3Dim  = 15552000.0,
417      * 3 cases:
418          1) Use a constant-in-time 3-dim. field
419          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
420          3) Real-time relax. to time-evolving prescribed field
421    o Adding Laplacian-type smoothness constraint on
422      initial and boundary (forcing) controls (ic, bc)
423      * enable at compile-time via
424        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
425      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
426      * Absolute scale somewhat unclear so far
427      * no area weighting was included since no other cost term does so far
428    
429    checkpoint57y_post
430    First step for a NLFS adjoint
431    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
432    o new init. routines for calc_r_star, calc_surf_dr
433    o still need to deal with ini_masks_etc
434    o testreport seemed happy
435    checkpoint57y_pre
436    
437    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
438    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
439    o add new offset feature to offline pkg (plus minor cleanup)
440    o cfc fixes for final year of integration
441    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
442      be in GCHEM_OPTIONS).
443    
444    checkpoint57x_post
445    o fix testreport Pb in multiple test experiment.
446    o cleanup our namelist syntax in verification:
447      - make it more F95 standards compliant (some work still needed)
448      - allows the vast majority of our tests to work with gfortran
449    o Non-Hydrostatic:
450     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
451     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
452    o Allow to apply AB on T,S rather than on AB(gT,gS):
453     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
454     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
455       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
456     - need a "clever" read_pickup to restart from the other AB formulation
457    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
458    o remove some unused variables (reduces number of compiler warnings)
459    o adjoint
460      * Disable useVariableViscosity for adjoint for time being
461        (there are a number of extensive recomputations)
462      * Initialize certain variables needed for adjoint
463    
464    checkpoint57w_post
465    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
466                 fix the singleCpuIO RS version of MDSWRITEFIELD
467       and add a WARNING if using globalFiles=T with multi-processors.
468    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
469      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
470    o tracer advection scheme:
471      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
472       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
473       was not very convenient).
474      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
475       (further tests needed for the implicit DST & Flux-Limiter schemes).
476    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
477      and sRef for convenience, handy, when you want to initialize
478      ptracers in a large domain with a constant non-zero value. Also,
479      untangle ptracers_init.F a little.
480    
481    checkpoint57v_post
482    o change dome exp. to use variable viscosity in side-drag terms.
483    o remove all the files from the cfc_offline test since they are now
484      incorporated into tutorial_cfc_offline which has been producing
485      identical results for a few days of testing
486    o add new parameter: sideDragFactor to enable half-slip-side BC
487      and change side-drag S/R to use viscosity from mom_calc_visc
488      (can switch back by setting sideDragFactor=0.); affects results at
489      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
490       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
491    o vorticity & strain are now computed without masking, to account for
492      no-slip-side BC in variable viscosity calculation ; mask is applied
493      anyway later on, before computing advection/coriolis terms.
494    o modify exp4 to test new obcs support for reading from external files
495      and for passive tracers
496    o fix behavior of ptracers_monitor when monitor output is written to a
497      netcdf-file; still not independent of monitor.F (writes in the same
498      file).
499    o change default value of tRef (put a uniform, meaningful value for ocean
500      & atmos) and initialize sRef (was missing, as Martin mentioned).
501    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
502      to be proportional to enstrophy dissipation length.  Thus,
503       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
504      This is now consistent with Smagorinsky and with the manual.
505    
506    checkpoint57u_post
507    o OBCS and PTRACERS: add open boundary support for passive tracers
508      - either use homogenous (pseudo) v.Neumann conditions or prescribe
509        OB-values from file; this is not different from the way theta and salinity
510        are treated
511      - however, Orlanski-radiation conditions are not supported, and the model
512        will stop if you use pTracers and Orlanski at the same time.
513      - beefed up the rountine obcs_external_fields_load: now only those open
514        boundary values are overwritten with values from files for which there
515        are really files, otherwise the OB-fields remain untouched. This makes
516        it possible to use different OBs at different ends of the domain (as
517        with EXF)
518    o reduce number of exch calls in shap_filt (s2).
519    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
520      truncation level) 4/5 MLAdjust test results (11&12 digits match).
521    
522    checkpoint57t_post
523    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
524    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
525      same truncation, independent of the face number: affects affects several
526      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
527    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
528      note that biharmonic viscosity + no-slip was not tested in any experiment.
529    o fix bug in non-linear free-surf side-drag ; generate new output for
530      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
531    o make mnc honor the writeBinaryPrec flag for most kinds of output
532    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
533    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
534      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
535    o add brackets in multi-terms sum to get same truncation, independent of
536      the face number (manage to get exactly same value of gU,gV at the cs-edge)
537      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
538    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
539      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
540      a maximum grid-scale Reynolds number.  Also, changes all length calculations
541      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
542      Suggested values of viscosity parameters found in mom_calc_visc.
543      Many new viscosity diagnostics available.
544    
545    checkpoint57s_post
546    o Add clearing-house for viscosity calculations, mom_calc_visc and
547      correct numerous bugs in LeithD and Smagorinsky discretizations.  
548      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
549      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
550      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
551      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
552      The Strain-Tension form is now called with useStrainTensonVisc=.true.
553      ViscAhStrain and viscAhTension are now retired.
554    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
555    o In response to JMC's bug report, genmake2 now ignores any soft-links
556      that it finds in the *current* directory when searching for files.
557      Soft-links found in any other source directories will still work as
558      they did before.
559    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
560      a C routine to unlimit the stack size
561    o mnc-ify pkg/aim snapshot vars
562    o mnc-ify pkg/land as requested by Daniel
563    o various changes to mnc including:
564      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
565      - output can now be grouped so that all files within a group
566          change the ITER portion of their names in lock-step together
567      - can now read ("global") PER-FACE (in addition to PER-TILE) files
568          and works with both EXCH1 and EXCH2 (but needs more testing)
569      - writing works for all verification test cases w/ g77 on Linux
570    
571    checkpoint57r_post
572    o make MNC variable initialization happen earlier
573    o add diagnostics for (almost) each term of the momentum Eq.
574    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
575    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
576    o remove MINIMAL_TAVE_OUTPUT option ;
577      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
578    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
579      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
580    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
581    o add time-dependent SST, SSS control
582    o cost terms in ecco/ modularized (new cost_generic.F)
583    o cost_averages routines are modularized (new cost_averagesgeneric.F)
584    o new infrastructure for seaice model vs. obs misfits in seaice/
585      * driver from the_main_loop.F is seaice_cost_driver.F
586      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
587      * gradient check in Exp. 6a of natl_box_adjoint/
588    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
589      (see README file)
590    
591    checkpoint57q_post
592    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
593    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
594      - bug was reported by Jean-Michel and Ian Fenty
595    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
596      update exp. cpl_aim+ocn output.
597    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
598      Needed for high-res. runs with large global files
599      to be able to limit tapelev size
600    o Changed some tests for adjoint:
601      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
602      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
603      * global_ocean.90x40x15/ back to default 3-level checkpointing
604    o Modifications to enable scripted COMMON to MODULE conversion
605      * verification/OpenAD/code/ has necessary scripts and description;
606      * converts, compiles and runs successfully;
607    
608    checkpoint57p_post
609    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
610    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
611      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
612    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
613    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
614      (was already the case for dissipation with mom_vecinv,
615       and also the case for grad.PhiHyd when staggered-timeStep)
616      This will allow to put dissipation out-off the AB time-stepping.
617     Unfortunately, affects truncation error. Update output of exp. that "fails"
618      (cg2d matching number) and leave the others for later: front_relax(10),
619      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
620      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
621    
622    checkpoint57o_post
623  o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and  o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
624    (2) its ready to be documented during the 20050801 DocFest    (2) its ready to be documented during the 20050801 DocFest
625  o MNC-ify the gmredi package -- tested and works w/ and w/o mnc  o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
626    for ideal_2D_oce and lab_sea on linux_ia32_g77    for ideal_2D_oce and lab_sea on linux_ia32_g77
627    o set to #undef CTRL_SET_OLD_MAXCVARS_30
628      in global1x1_tot/code_seaice_adj to access indices 32, 33
629      (worth another tag)
630    
631  checkpoint57n_post  checkpoint57n_post
632  o adding precip control xx_precip 32  o adding precip control xx_precip 32

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