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revision 1.526 by heimbach, Sat Jul 30 11:47:39 2005 UTC revision 1.714 by jmc, Mon Aug 14 01:11:08 2006 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint58n_post
8    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
9       local variable (not in common block).
10    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
11      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
12      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
13        to work with SingleCpuIO.
14    o add "_d 0" to real constant of pkg/cfc subroutines ;
15       update exp. cfc_exemple & tutorial_cfc_offline output files.
16    o multi-threading and IO:
17      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
18        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
19      - barrier before and after reading.
20      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
21      - avoid using MDS_WRITELOCAL for LAND pkg output.
22      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
23        common-block variables ; Allows multi-threading with master-thread IO.
24    o change default MAX_NO_THREADS from 32 to 4 ;
25      and stop cleanly when MAX_NO_THREADS is too small.
26    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
27    
28    checkpoint58m_post
29    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
30       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
31    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
32       keep global_ocean.90x40x15 (for AD testing) with former secondary test
33       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
34    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
35        add MITgcm_tutorials (= code + all the tutorials)
36    o ecco, option to compute cost for total ssh (mean+anom)
37    o consistent with addition of ptracer and ssh in pkg/profiles
38    o profiles: adding ptracer and ssh
39    o testreport: change multi-test output-file name
40      (from output.txt.{name} to output.{name}.txt)
41    o profiles: now ok for mutli-tiles case
42    o seaice: add 4 parameters for different advection schemes for area,
43      (effective) seaice thickness, enthalphy, and snow height. Their default
44      is the standard parameter SEAICEadvScheme
45    o calc_gw:
46     - add cosFacU in zonal viscous flux (harmonic.visc.).
47     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
48       of tutorial_plume_on_slope.
49    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
50    o calc_gw: true flux-form, account for horizontal grid spacing.
51      update rotating_tank results, but not plume_on_slope (affected at
52      truncation level, 11 digits).
53    
54    checkpoint58l_post
55    o calc_gw:
56     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
57     - remove side-drag for now (need to fix it); update plume_on_slope results.
58     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
59    o commit code to make SST/SSS weights spatially variable
60      (based on either variable in-situ or variable initial T/S weights)
61    o pkg/ecco:
62      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
63        now based on horizontally varying weights wthetaLev, wsaltLev
64      * cost_averagesflags now returns year indices in addition to day, month
65      * sflux balance is performed on annual basis
66        (sflxumm, sfluxmm2, bal_sfluxmm)
67      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
68        including separate counting and multipliers
69    o pkg/rbcs
70      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
71    
72    checkpoint58k_post
73    o testreport:
74     - always build in dir. "build" (if not there, mkdir build instead of building
75       & running in input)
76     - run in dir run (if it exists), in build otherwise.
77     - call prepare_run (if input/prepare_run exists)
78     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
79    o pkg/exf modifications to interpolation and rotation routines for more
80       reasonable treatment of North Pole singularity: for tracers North Pole
81       value is set to northernmost zonal-mean value, for zonal velocity it is
82       set to zero, and for meridional velocity it is set to northernmost value.
83    o pkg/exf/exf_check_range.F
84     - add tile index to diagnostics and move stop statement to the very
85       end of the routine.
86    o pkg/diagnostics: (diagnostics_main_init.F)
87      define title of isomorphic variables according to the current config.
88    o pkg/thsice with pkg/seaice dynamics:
89    - fix domain of computation (interior only, required for exf) and do exchanges
90    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
91    o towards a standard way of dealing with multi-threading in MONITOR
92      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
93    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
94       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
95    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
96    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
97    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
98       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
99    o tracer advection:
100     - clean-up and simplify calc_common_factors.F
101     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
102       advection subroutine (but still not used within DST advection S/R)
103    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
104    
105    checkpoint58j_post
106    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
107      from file (collects calls previously in FORWARD_STEP)
108    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
109    o adjoint store dir. adjusted accordingly
110    o genmake2
111      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
112    
113    checkpoint58i_post
114    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
115      on wind stress (SEAICEstressFactor defaults to 1.)
116    o Total number of Timers is finite (<=40): comment out 2 non-essential one
117      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
118    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
119      on CS-grid: no longer loosing mass.
120    o exf & curvilinear-grid: no longer modify longitude xC & xG.
121    o pkg/ggl90: fix sloppy output and fix a bug
122    o pkg/seaice: added SEAICEuseEVPpickup parameter
123      - Set to false in order to start EVP solver with
124        non-EVP pickup files when using SEAICEuseEVP
125      - fix sign error in diffusion in seaice_calc_rhs
126    
127    checkpoint58h_post
128    * Modifications for bottom topography control
129      o replace hFacC by _hFacC at various places
130      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
131      o add non-self-adjoint cg2d_nsa
132      o update autodiff support routines
133      o re-initialise hfac after ctrl_depth_ini
134      o works for 5x5 box, doesnt work for global_ocean.90x40x15
135    * Adding verification for 5x5 box (4-layer) bottom topography control
136    
137    checkpoint58g_post
138    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
139       used for mean seasonal cycle, mean diurnal cycle); add an example
140       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
141    o pkg/ggl90:
142      - add parameter (minimum surface kinetic energy)
143      - fix bug (avoiding division by zero)
144    o couple pkg/thsice to pkg/seaice:
145      - modify advection in seaice to accomodate new scalar fields to be advected
146      - only muliDimAdection scheme work with seaice/thsice
147      - mapping of thsice-variables to seaice-variables, back and forth
148      - does not break the verification experiments, but does not give the
149        desired results either
150    o pkg/seaice
151      - make (default) second order advection a bit less confusing?
152    
153    checkpoint58f_post
154    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
155      to pkg/seaice):
156      - new routines thsice_map_exf and thsice_get_exf provide the interface
157      - add an additional formal parameter to thsice_solve4temp
158    o pkg/exf:
159      - add new fields wspeed, snowprecip (to be able to couple to thsice)
160      - correct Stefan-Boltzmann constant
161      - new parameter for longwave surface emittance
162      - separate some stuff from exf_bulkformulae into new routines  
163        exf_radiation, exf_wind
164      - add new parameters and constants: longwave emissivity for ocean, ice
165        and snow, evaporation parameters over ice
166      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
167        either wind from stress or stress from wind
168    o pkg/thSIce:
169    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
170    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
171       and THSICE_CALC_THICKN
172    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
173    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
174      to make debugging easier.
175    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
176    o pkg/bulk_force:
177      - clean-up comments and parameters ;
178      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
179    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
180      generate new output for test-experiment: aim.5l_cs.thSI
181    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
182      testreport accordingly
183    
184    checkpoint58e_post
185    o SEAICE_CGRID adjoint done
186    o R_STAR adjoint implemented.
187      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
188      * need to sort out init. of h0facc, etc.
189    o Make pkg/profile fully independent of ecco,cost, etc. stuff
190      to be able to use it in pure forward.
191    
192    checkpoint58d_post
193    o upgrade simple test-experiment to tutorial example:
194     step.1: duplicate the experiment and (step.2) will remove the old copy.
195      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
196      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
197      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
198      tutorial_global_oce_biogeo    <- copy of dic_example
199      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
200      tutorial_plume_on_slope       <- copy of plume_on_slope
201      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
202      tutorial_global_oce_optim     <- empty for now (David ?)
203      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
204     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
205    o correct a sign problem in cost_scat.F
206    o obcs and ptracers: fix boundary conditions for advections schemes
207      with larger stencil
208    o thsice adjoint: start
209    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
210      completeness
211    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
212      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
213    o ptracers adjoint:
214      * avoid extensive recomputatations
215      * fix missing re-init. of gptr (missed by TAF)
216    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
217      me to turn off the excessive output to STDOUT that this package produces
218    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
219      and add those terms in Vector-Invariant formulation.
220    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
221      if the control period (xx_hfluxperiod etc) is 0
222    o in profiles pkg, clean routines and fix details
223    o in ecco pkg, reading ssh data:
224      fix problem in case the model does not start at iter0=0
225    o fix mnc-pickup/restart for ptracers
226    o new package prifiles:
227      code to compute profile-based cost by Gael Forget
228      (modifs in ecco, ctrl, autodiff)
229    o Benign bug fix in initialization (spotted by M. Mazloff) of
230      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
231    
232    checkpoint58c_post
233    o adjoint: finish NLFS adjoint and provide reference output in
234      verification/global_ocean.90x40x15/results_ad_nlfs
235    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
236      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
237      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
238      with SEAICE_CGRID defined.
239    o move calendarDumps from "data" to "data.cal" and clean-up the code
240      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
241    o add useEXF & useCAL flags (for now, set in hard-coded way)
242    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
243      (were missing in NH mode, and wrong in quasihydrostatic mode).
244      waiting for Chris updated version of calc_gw to add those CALLs.
245    o fix bug in quasihydrostatic S/R ;
246      add a test for this option: global_ocean.90x40x15.qshyd
247    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
248      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
249    o add on/off flag useOffLine for package OFFLINE
250    o seaice:
251      - modify advection so that it works also on the C-grid
252      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
253        problem in multi-tile runs with C-grid
254      - add flags for clipping ice velocities and/or masking solver forcing
255      - fix drag (ocean on ice) formulation and a bug that caused noise in the
256        C-grid solver
257      - added a few comments to seaice_diffusion.F
258      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
259        are now exclusive)
260      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
261        required re-ordering the code a little:
262       + make DAIRN global variable (defined in SEAICE)
263       + move computation of the viscosities eta and zeta into a new separate
264         routine (because I need to recompute them in seaice_ocean_stress.F)
265    
266    checkpoint58b_post
267    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
268      update output.txt of exp. aim.5l_cs.thSI
269    o various mnc cleanups and improvements:
270      + shrink lookup tables by factor of ~4
271      + better error reporting when running out of lookup space
272      + able to handle longer path/file names (up to 500 chars)
273    o adjoint:
274      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
275      - TBD: "hidden" mom_vecinv recomp. in dynamics
276    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
277     (allow to differentiate between forcing components using new integer flags:
278      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
279     and add new flag to put Dissipation tendency out of Adams-Bashforth.
280    o ecco
281      - enable trend removal from SSH anomaly obs.
282    o adjoint
283      - a fix for PmEpR when #undef EXACT_CONSERV
284      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
285      - try to fix "hidden" recomp. in forward_step for NLFS
286        (NLFS seems broken sometimes after I checked it in)
287    o seaice:
288     - add c-grid version of the dynamic solver:
289       + three new routines that are the c-grid substitute lsr, dynsolver
290         and ostres
291       + put a few fields that were local to dynsolver into global common
292         blocks, so that I can move the computation of stresses etc into
293         seaice_lsr (saves coding but may break the adjoint).
294     - replace more hardwired parameters by runtime parameters
295     - add ice masks that mask the rhs of the implicit solvers where there
296       is no ice (commented out in seaice_dynsolver, because i am not sure
297       if this works properly), eventually this should replace the clipping
298       of ice velocities in seaice_dynsolver to +/-40cm/s.
299    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
300      include it only where its needed
301    o move balancing of fluxes before the call of external_forcing_surf
302    o seaice:
303      - correct units of turning angles (now they are really in degrees)
304      - move computation of GWATX/Y out of main routine into dynsolver
305      - initialize GWATX/Y in seaice_init
306    o Apply mask on Fresh-Water flux (needed for SSH forcing).
307      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
308    o seaice: add runtime flags for turning angles (default to zero)
309    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
310      and trend from exf forcing and ctrl control adjustments
311    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
312      (since checkpoint57x_post)
313    o change the default rotation period to 86164.s = the Earth rotation
314    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
315      and based on a reference stratification. Tested within hs94.cs-32x32x5.
316    o seaice advection: add code for choosing between the default (2nd order
317      central differences) and multiDim advection schemes provided by
318      pkg/generic_advdiff
319    o seaice:
320      - removed all references to SEAICE_GRID.h fields from
321        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
322        (cubed-sphere configuration will change a little)
323      - grid computations in seaice_init are obsolete now.
324      - cleaned up code a little so that is easier to read (hopefully).
325      - added new (better?) discretizations of default advection and diffusion
326        (turn on with SEAICEuseFluxForm)
327      - replace 1 in 3d global fields by kSurface in growth.F
328      
329    checkpoint58a_post
330    o seaice:
331      - bug fix in advect.F
332    o shelfice:
333      - separate shelfice load anomaly from pload (breaks with time
334        dependent forcing), => introduce constant field shelficeLoadAnomaly.
335        Its default is 0., but it may be computed more cleverly from (unknown)
336        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
337        done offline. A good approximation of the pressure load anomaly is
338        necessary to avoid large initial adjustment processes underneath
339        deep-reaching shelfice.
340      - small fix in ISOMIP shelfice_thermodynamics
341      - add more sophisticated thermodynamics of Hellmer (1989), this is
342        now the default
343      - give a few constants more intuitive names
344    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
345      if bulk formulae are used in long integration (especially EmPmR). Turn
346      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
347      if balancePrintMean, the imbalance that is substracted is printed to
348      STDOUT.
349    o fix bug (typo) in obcs_apply_eta.F
350    o add a new package shelfice which enables us to model the circulation
351      underneath shelf-ice with draughts of hundreds of meters.
352     - works
353     - to do: + include improved thermodynamics
354              + check whether kSurfC (from model/inc/SURFACE.h) can be used
355                instead of new field kTopC
356              + can we use topoFile, Ro_surf and existing code in ini_depth.F
357                instead of new field R_shelfIce and new code in ini_depth.F
358                and ini_mask_etc.F?
359              + adjust vertical mixing schemes?
360    o seaice pkg:
361     - add a cpp-flag to include a simple formula for a salinity dependent
362       freezing point of sea water at the surface
363     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
364       meridional stresses are now different (and hopefully correct)
365    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
366       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
367       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
368    o pkg/diagnostics: add options and parameters for regional-statistics
369       diagnostics ; define regions by reading a region-mask from a file
370       (might add other options later)
371    o pkg/bulk_force:
372     - add option and parameters to use AIM surface-flux formulae.
373     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
374       others forcing fields (defined in PARM05, parameter file "data") are loaded
375       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
376     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
377     - use the right EXCH call for uwind,vwind (to work on CS-grid).
378     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
379       and parameters (note: calcWindStress replaces .NOT.readwindstress).
380     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
381    
382    checkpoint58
383    o add "--embed-source" option to genmake2 which, when the supporting
384      tools can be compiled (as determined by genmake2) will turn on the
385      embed_files package which then embeds the entire MITgcm source code
386      (*.[fFhc] + Makefile) used for the build within the executable
387      - requested by CNH but off by default
388      - adds a paltry <9MB to the mitgcmuv executable in most cases
389      - only writes the output when useEMBEDSRC in eedata is true
390    o clean up 3-dim. relaxation codes:
391      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
392      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
393      * Thanks to Tom Haine for testing!
394    
395    checkpoint57z_post
396    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
397      affects output (@ truncation level) of exp. plume_on_slope ; updated.
398    o fix the pickup behavior for obcs in combination with ptracers
399    o fix a bug in ptracers_external_fields_load
400    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
401      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
402    o transfered surface NH pressure to eta field (if exactConserv).
403    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
404         and update lab_sea output.txt file.
405    o completing 3-dim. relaxation code: additional term
406         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
407      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
408      * At compile time, in "EXF_OPTIONS.h" set
409          #define  ALLOW_CLIMTEMP_RELAXATION
410          #define  ALLOW_CLIMSALT_RELAXATION
411      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
412          tauThetaClimRelax3Dim = 15552000.0,
413          tauSaltClimRelax3Dim  = 15552000.0,
414      * 3 cases:
415          1) Use a constant-in-time 3-dim. field
416          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
417          3) Real-time relax. to time-evolving prescribed field
418    o Adding Laplacian-type smoothness constraint on
419      initial and boundary (forcing) controls (ic, bc)
420      * enable at compile-time via
421        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
422      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
423      * Absolute scale somewhat unclear so far
424      * no area weighting was included since no other cost term does so far
425    
426    checkpoint57y_post
427    First step for a NLFS adjoint
428    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
429    o new init. routines for calc_r_star, calc_surf_dr
430    o still need to deal with ini_masks_etc
431    o testreport seemed happy
432    checkpoint57y_pre
433    
434    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
435    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
436    o add new offset feature to offline pkg (plus minor cleanup)
437    o cfc fixes for final year of integration
438    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
439      be in GCHEM_OPTIONS).
440    
441    checkpoint57x_post
442    o fix testreport Pb in multiple test experiment.
443    o cleanup our namelist syntax in verification:
444      - make it more F95 standards compliant (some work still needed)
445      - allows the vast majority of our tests to work with gfortran
446    o Non-Hydrostatic:
447     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
448     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
449    o Allow to apply AB on T,S rather than on AB(gT,gS):
450     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
451     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
452       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
453     - need a "clever" read_pickup to restart from the other AB formulation
454    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
455    o remove some unused variables (reduces number of compiler warnings)
456    o adjoint
457      * Disable useVariableViscosity for adjoint for time being
458        (there are a number of extensive recomputations)
459      * Initialize certain variables needed for adjoint
460    
461    checkpoint57w_post
462    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
463                 fix the singleCpuIO RS version of MDSWRITEFIELD
464       and add a WARNING if using globalFiles=T with multi-processors.
465    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
466      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
467    o tracer advection scheme:
468      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
469       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
470       was not very convenient).
471      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
472       (further tests needed for the implicit DST & Flux-Limiter schemes).
473    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
474      and sRef for convenience, handy, when you want to initialize
475      ptracers in a large domain with a constant non-zero value. Also,
476      untangle ptracers_init.F a little.
477    
478    checkpoint57v_post
479    o change dome exp. to use variable viscosity in side-drag terms.
480    o remove all the files from the cfc_offline test since they are now
481      incorporated into tutorial_cfc_offline which has been producing
482      identical results for a few days of testing
483    o add new parameter: sideDragFactor to enable half-slip-side BC
484      and change side-drag S/R to use viscosity from mom_calc_visc
485      (can switch back by setting sideDragFactor=0.); affects results at
486      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
487       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
488    o vorticity & strain are now computed without masking, to account for
489      no-slip-side BC in variable viscosity calculation ; mask is applied
490      anyway later on, before computing advection/coriolis terms.
491    o modify exp4 to test new obcs support for reading from external files
492      and for passive tracers
493    o fix behavior of ptracers_monitor when monitor output is written to a
494      netcdf-file; still not independent of monitor.F (writes in the same
495      file).
496    o change default value of tRef (put a uniform, meaningful value for ocean
497      & atmos) and initialize sRef (was missing, as Martin mentioned).
498    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
499      to be proportional to enstrophy dissipation length.  Thus,
500       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
501      This is now consistent with Smagorinsky and with the manual.
502    
503    checkpoint57u_post
504    o OBCS and PTRACERS: add open boundary support for passive tracers
505      - either use homogenous (pseudo) v.Neumann conditions or prescribe
506        OB-values from file; this is not different from the way theta and salinity
507        are treated
508      - however, Orlanski-radiation conditions are not supported, and the model
509        will stop if you use pTracers and Orlanski at the same time.
510      - beefed up the rountine obcs_external_fields_load: now only those open
511        boundary values are overwritten with values from files for which there
512        are really files, otherwise the OB-fields remain untouched. This makes
513        it possible to use different OBs at different ends of the domain (as
514        with EXF)
515    o reduce number of exch calls in shap_filt (s2).
516    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
517      truncation level) 4/5 MLAdjust test results (11&12 digits match).
518    
519    checkpoint57t_post
520    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
521    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
522      same truncation, independent of the face number: affects affects several
523      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
524    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
525      note that biharmonic viscosity + no-slip was not tested in any experiment.
526    o fix bug in non-linear free-surf side-drag ; generate new output for
527      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
528    o make mnc honor the writeBinaryPrec flag for most kinds of output
529    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
530    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
531      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
532    o add brackets in multi-terms sum to get same truncation, independent of
533      the face number (manage to get exactly same value of gU,gV at the cs-edge)
534      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
535    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
536      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
537      a maximum grid-scale Reynolds number.  Also, changes all length calculations
538      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
539      Suggested values of viscosity parameters found in mom_calc_visc.
540      Many new viscosity diagnostics available.
541    
542    checkpoint57s_post
543    o Add clearing-house for viscosity calculations, mom_calc_visc and
544      correct numerous bugs in LeithD and Smagorinsky discretizations.  
545      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
546      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
547      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
548      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
549      The Strain-Tension form is now called with useStrainTensonVisc=.true.
550      ViscAhStrain and viscAhTension are now retired.
551    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
552    o In response to JMC's bug report, genmake2 now ignores any soft-links
553      that it finds in the *current* directory when searching for files.
554      Soft-links found in any other source directories will still work as
555      they did before.
556    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
557      a C routine to unlimit the stack size
558    o mnc-ify pkg/aim snapshot vars
559    o mnc-ify pkg/land as requested by Daniel
560    o various changes to mnc including:
561      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
562      - output can now be grouped so that all files within a group
563          change the ITER portion of their names in lock-step together
564      - can now read ("global") PER-FACE (in addition to PER-TILE) files
565          and works with both EXCH1 and EXCH2 (but needs more testing)
566      - writing works for all verification test cases w/ g77 on Linux
567    
568    checkpoint57r_post
569    o make MNC variable initialization happen earlier
570    o add diagnostics for (almost) each term of the momentum Eq.
571    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
572    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
573    o remove MINIMAL_TAVE_OUTPUT option ;
574      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
575    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
576      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
577    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
578    o add time-dependent SST, SSS control
579    o cost terms in ecco/ modularized (new cost_generic.F)
580    o cost_averages routines are modularized (new cost_averagesgeneric.F)
581    o new infrastructure for seaice model vs. obs misfits in seaice/
582      * driver from the_main_loop.F is seaice_cost_driver.F
583      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
584      * gradient check in Exp. 6a of natl_box_adjoint/
585    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
586      (see README file)
587    
588    checkpoint57q_post
589    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
590    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
591      - bug was reported by Jean-Michel and Ian Fenty
592    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
593      update exp. cpl_aim+ocn output.
594    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
595      Needed for high-res. runs with large global files
596      to be able to limit tapelev size
597    o Changed some tests for adjoint:
598      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
599      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
600      * global_ocean.90x40x15/ back to default 3-level checkpointing
601    o Modifications to enable scripted COMMON to MODULE conversion
602      * verification/OpenAD/code/ has necessary scripts and description;
603      * converts, compiles and runs successfully;
604    
605    checkpoint57p_post
606    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
607    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
608      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
609    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
610    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
611      (was already the case for dissipation with mom_vecinv,
612       and also the case for grad.PhiHyd when staggered-timeStep)
613      This will allow to put dissipation out-off the AB time-stepping.
614     Unfortunately, affects truncation error. Update output of exp. that "fails"
615      (cg2d matching number) and leave the others for later: front_relax(10),
616      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
617      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
618    
619  checkpoint57o_post  checkpoint57o_post
620  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
621    (2) its ready to be documented during the 20050801 DocFest    (2) its ready to be documented during the 20050801 DocFest

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