/[MITgcm]/MITgcm/doc/tag-index
ViewVC logotype

Diff of /MITgcm/doc/tag-index

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph | View Patch Patch

revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.795 by mlosch, Fri Apr 20 18:30:39 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice: fix bug in evp solver, while doing that
8      - change (improve?) discretization of stress computations for both
9        cgrid-lsr and evp solver
10      - add a new routine to compute strain rates
11      - changes lab_sea results
12    o pkg/kpp: add code to have mixing in shelf ice caverns
13    
14    checkpoint59
15    o pkg/exf:
16      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
17        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
18      - move exf header files from lower_case.h to UPPER_CASE.h ;
19        add missing cvs Header & Name
20      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
21      - add namelist param. selectStressGridPosition, exf_monFreq
22      - retire many _CLIM routines, and remove data.exf_clim
23        + params moved to data.exf
24        + climsst, climsss now handled by exf_set_gen, i.e.
25          climss?period=0 refers to constant field,
26          climss?period=-12 to monthly forcing
27      - split up namelists in data.exf
28    o pkg/seaice:
29      - remove seaice_exch and seaice_exch_uv
30      - remove superfluous exchange of theta
31      - add myThid to seaice_budget_ocean/ice
32      - add new interface for atmospheric wind forcing (C-grid only)
33        + new routine
34        + two new field (taux, tauy for stress over ice)
35        + removed one global field (DAIRN) for C-grid case only
36    o pkg/thsise
37      - 2nd set of modifs for thsice adjoint in conjunction with exf
38    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
39    
40    checkpoint58y_post
41    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
42      vertical diffusivity, similar to that in MOM4; turned on using
43      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
44      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
45    o Added capability for 3D specification of background vertical diffusion
46      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
47      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
48      "data" file that contains the 3D vertical diffusivity coefficients.
49    o ice dynamics (pkg/seaice) with thsice thermodynamics:
50      - add code within pkg thsice to advect & diffuse sea-ice fields
51      similar to (and will replace) what has been added in  seaice_advdiff.F,
52      but: - conserving Mass, Heat & Salt.
53           - better when using non-linear advection scheme (not yet fully tested)
54           - can also be used in atmospheric set-up (for now, only the diffusion).
55    
56    checkpoint58x_post
57    o IO option for global-file compact format:
58      - add options when generating topology (utils/exch2/matlab-topology-generator)
59      - add I/O capability (pkg/mdsio).
60      - adapt utils/matlab/rdmds.m to read this format.
61      for now long-line format not yet supported by pkg/mdsio (& exch2).
62    o shelfice: add a few diagnostics
63    
64    checkpoint58w_post
65    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
66      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
67      (and replace horiVertRatio in NH code).
68      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
69                         and tutorial_plume_on_slope (sensitive to truncation)
70    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
71      directly to drive seaice model (C-grid only)
72    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
73     - reintroduce computation of wind from stress,
74     - compute tau (in exf_bulkformulae.F) from windstress averaged to
75       mass points to avoid tau = 0
76     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
77    o rdmnc.m: make it work with "global" files created with gluemnc
78    o rdmnc.m : some improvements in dealing with singleton dimension
79      (tested on all testreport mnc output files).
80    o genmake2: disable pkg/profiles if netcdf test fails.
81    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
82    o move call to cal_readparms up to make calendar parameters/variable available
83      to all packages
84    
85    checkpoint58v_post
86    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
87      useDynP_inEos_Zc tested.
88    o pkg/exf: changes to properly interpolate/mask/scale initial fields
89    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
90      and portions thereof.  See read_cs.txt for description and examples.
91    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
92      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
93      following the great-circle arc between those 2 points.
94    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
95      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
96    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
97     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
98     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
99     - still needs work (not working with some options ; efficiency to improve)
100       and serious testing.
101     - use this scheme for temperature & salinity in 2 advection test exp.:
102       advect_xy & advect_xz, respectively.
103    
104    checkpoint58u_post
105    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
106    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
107    o testreport: add option "-skipdir" to skip some test.
108    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
109      momentum calculation.
110    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
111    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
112      remove checkpoint.F and the_correction_step.F (no longer used);
113      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
114    o add option (linFSConserveTr) to correct for tracer source/sink due to
115      Linear Free surface
116    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
117    o pkg/thsice: fix reading mnc-pickups
118    
119    checkpoint58t_post
120    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
121    o pkg/mdsio:
122     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
123       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
124       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
125     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
126     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
127       either MDS_READ_FIELD or MDS_WRITE_FIELD )
128     - new S/R (to replace MDSWRITEMETA), which allows to write more
129       informations (variable names, time ...) to meta files.
130     - modify rdmds.m to give back the meta file content.
131    o pkg/diagnostics: change vertical interpolation to be safer, and more
132       flexible (define p-levels to interpolate to in data.diagnostics);
133      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
134       diagnostic pointer.
135    o pkg/seaice: more cleaning up of seaice_growth, added many comments
136    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
137    o fix multi-category seaice:
138     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
139       SEAICE_MULTICATEGORY
140     - fix short wave heat flux
141    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
142       and allow to use EVP solver. Change forward lab_sea: test both EVP
143       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
144    o Initial check-in of lab_sea adjoint
145      (very similar to natl_box_adjoint/code_seaice)
146      * used C-grid and EVP solver
147      * used KPP, GM/Redi
148      * uses inAdExact=.TRUE.
149      * gradient checks fail for both ADM and TLM
150        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
151        f.d. gradients actually seem more problematic than ADM, TLM gradients;
152        issue is related to forward mismatch between g77 an ifort
153    o pkg/seaice: overhaul of thermodynamics
154     - growth.F and groatb.F are replaced by new routine seaice_growth.F
155     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
156     - move a few global fields out of SEAICE.h into seaice_growth.F and
157       make them 2D (FICE/QNETO/ ...)
158     - remove FO (it is the same as QNETO)
159     - introduce a few local fields to avoid modifying external fields such
160       as atemp, etc.
161    
162    checkpoint58s_post
163    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
164      changed exf_set_gen.F so that
165        genperiod=0 means input file is one time-constant field and
166        genperiod=-12 means input file contains 12 monthly means
167    o CG2D: use pre-computed solver main-diagonal (stored in common block);
168      this affects truncation error ; generate new output file for exp. which
169      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
170        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
171        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
172        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
173        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
174        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
175    o start implementation of deep-atmosphere and anelastic formulation
176    o verification: remove 2nd copy of input files and use script "prepare_run"
177      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
178    o mom_common/vecinv/fluxform: fix a few initialisation isssues
179    o profiles: fix for multithreaded case
180    
181    o diagnostics: rename few diags:
182      s/'PRESSURE'/'RCENTER '/g
183      s/'TICE    '/'oceFreez'/g
184      s/'TAUX    '/'oceTAUX '/g
185      s/'TAUY    '/'oceTAUY '/g
186      s/'SWFLUX  '/'oceQsw  '/g
187      s/DIFx/DFxE/g
188      s/DIFy/DFyE/g
189      and add few ocean-forcing diagnostics:
190      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
191    o modifications to pkg/seaice/growth.F and budget.F, which change results of
192      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
193      as actual snow thickness.  It now refers everywhere to effective snow
194      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
195    
196    checkpoint58r_post
197    o modifications to pkg/seaice/growth.F, which change results of
198      lab_sea experiment: fixes pertain to melting snow over open water, to
199      masking EVAP under sea ice, and to using the correct AREA variable for
200      computations of EVAP, PRECIP, HSNOW, and GHEFF
201    o add ability to read bathy, salt, and theta using MNC (off by def)
202    o add flooding algorithm and advection of HSNOW for pkg/seaice;
203      both are turned off by default and do no change any results
204    o seaice advection with pkg/thsice: a step toward the use of non-linear
205      advection scheme, but #ifdef or commented out for now (requires more EXCH).
206    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
207      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
208      in natl_box (affects results @ truncation level: update output.txt)
209    o multi-threading and IO:
210      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
211      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
212        (needed to work with SingleCpuIO): tested in all verif. exp.
213    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
214      affects the results (but none of the verification test uses this scheme).
215    o Adding some pkg/diagnostics capability to pkg/seaice
216      (will certainly be subject to changes)
217    o ctrl: adding new control variables:
218      lwflux, lwdown, evap, snowprecip, apressure, runoff
219    
220    checkpoint58q_post
221    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
222      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
223      high_res_cube configuration by 4% on Columbia.
224    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
225      add (in global_with_exf/code) a version of EXF_INTERP_READ without
226      dynamical allocation (seems to work in multi-threaded).
227    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
228      single CPU io) so that TAF does not have to see EESUPPORT.h
229    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
230    
231    checkpoint58p_post
232    o obcs: stop if obcs is used with useCDscheme = .true.
233    o shelfice:
234     - fix a sign error so that no slip at shelfice interface works
235     - remove stop for combination non-hydrostatic code and shelfice. That does
236       not mean, that the results are correct, but at least they are numerically
237       stable
238    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
239    o added adjoint exch routined for all exch*3d* routines
240      and updated flow directives
241    
242    checkpoint58o_post
243    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
244      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
245    o change controling S/R for writing pickup file (new S/R do_write_pickup)
246      and clean-up reading/writing of pickup files.
247    o fix local version of read/write pickup (NH part) in rotating_tank/code
248    o simplify EXCH interface:
249     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
250     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
251    o added the regrid package
252    o shelfice:
253     - add a simple boundary layer scheme to reduce noise
254     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
255    
256    checkpoint58n_post
257    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
258       local variable (not in common block).
259    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
260      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
261      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
262        to work with SingleCpuIO.
263    o add "_d 0" to real constant of pkg/cfc subroutines ;
264       update exp. cfc_exemple & tutorial_cfc_offline output files.
265    o multi-threading and IO:
266      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
267        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
268      - barrier before and after reading.
269      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
270      - avoid using MDS_WRITELOCAL for LAND pkg output.
271      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
272        common-block variables ; Allows multi-threading with master-thread IO.
273    o change default MAX_NO_THREADS from 32 to 4 ;
274      and stop cleanly when MAX_NO_THREADS is too small.
275    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
276    
277    checkpoint58m_post
278    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
279       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
280    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
281       keep global_ocean.90x40x15 (for AD testing) with former secondary test
282       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
283    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
284        add MITgcm_tutorials (= code + all the tutorials)
285    o ecco, option to compute cost for total ssh (mean+anom)
286    o consistent with addition of ptracer and ssh in pkg/profiles
287    o profiles: adding ptracer and ssh
288    o testreport: change multi-test output-file name
289      (from output.txt.{name} to output.{name}.txt)
290    o profiles: now ok for mutli-tiles case
291    o seaice: add 4 parameters for different advection schemes for area,
292      (effective) seaice thickness, enthalphy, and snow height. Their default
293      is the standard parameter SEAICEadvScheme
294    o calc_gw:
295     - add cosFacU in zonal viscous flux (harmonic.visc.).
296     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
297       of tutorial_plume_on_slope.
298    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
299    o calc_gw: true flux-form, account for horizontal grid spacing.
300      update rotating_tank results, but not plume_on_slope (affected at
301      truncation level, 11 digits).
302    
303    checkpoint58l_post
304    o calc_gw:
305     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
306     - remove side-drag for now (need to fix it); update plume_on_slope results.
307     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
308    o commit code to make SST/SSS weights spatially variable
309      (based on either variable in-situ or variable initial T/S weights)
310    o pkg/ecco:
311      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
312        now based on horizontally varying weights wthetaLev, wsaltLev
313      * cost_averagesflags now returns year indices in addition to day, month
314      * sflux balance is performed on annual basis
315        (sflxumm, sfluxmm2, bal_sfluxmm)
316      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
317        including separate counting and multipliers
318    o pkg/rbcs
319      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
320    
321    checkpoint58k_post
322    o testreport:
323     - always build in dir. "build" (if not there, mkdir build instead of building
324       & running in input)
325     - run in dir run (if it exists), in build otherwise.
326     - call prepare_run (if input/prepare_run exists)
327     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
328    o pkg/exf modifications to interpolation and rotation routines for more
329       reasonable treatment of North Pole singularity: for tracers North Pole
330       value is set to northernmost zonal-mean value, for zonal velocity it is
331       set to zero, and for meridional velocity it is set to northernmost value.
332    o pkg/exf/exf_check_range.F
333     - add tile index to diagnostics and move stop statement to the very
334       end of the routine.
335    o pkg/diagnostics: (diagnostics_main_init.F)
336      define title of isomorphic variables according to the current config.
337    o pkg/thsice with pkg/seaice dynamics:
338    - fix domain of computation (interior only, required for exf) and do exchanges
339    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
340    o towards a standard way of dealing with multi-threading in MONITOR
341      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
342    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
343       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
344    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
345    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
346    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
347       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
348    o tracer advection:
349     - clean-up and simplify calc_common_factors.F
350     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
351       advection subroutine (but still not used within DST advection S/R)
352    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
353    
354    checkpoint58j_post
355    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
356      from file (collects calls previously in FORWARD_STEP)
357    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
358    o adjoint store dir. adjusted accordingly
359    o genmake2
360      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
361    
362    checkpoint58i_post
363    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
364      on wind stress (SEAICEstressFactor defaults to 1.)
365    o Total number of Timers is finite (<=40): comment out 2 non-essential one
366      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
367    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
368      on CS-grid: no longer loosing mass.
369    o exf & curvilinear-grid: no longer modify longitude xC & xG.
370    o pkg/ggl90: fix sloppy output and fix a bug
371    o pkg/seaice: added SEAICEuseEVPpickup parameter
372      - Set to false in order to start EVP solver with
373        non-EVP pickup files when using SEAICEuseEVP
374      - fix sign error in diffusion in seaice_calc_rhs
375    
376    checkpoint58h_post
377    * Modifications for bottom topography control
378      o replace hFacC by _hFacC at various places
379      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
380      o add non-self-adjoint cg2d_nsa
381      o update autodiff support routines
382      o re-initialise hfac after ctrl_depth_ini
383      o works for 5x5 box, doesnt work for global_ocean.90x40x15
384    * Adding verification for 5x5 box (4-layer) bottom topography control
385    
386    checkpoint58g_post
387    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
388       used for mean seasonal cycle, mean diurnal cycle); add an example
389       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
390    o pkg/ggl90:
391      - add parameter (minimum surface kinetic energy)
392      - fix bug (avoiding division by zero)
393    o couple pkg/thsice to pkg/seaice:
394      - modify advection in seaice to accomodate new scalar fields to be advected
395      - only muliDimAdection scheme work with seaice/thsice
396      - mapping of thsice-variables to seaice-variables, back and forth
397      - does not break the verification experiments, but does not give the
398        desired results either
399    o pkg/seaice
400      - make (default) second order advection a bit less confusing?
401    
402    checkpoint58f_post
403    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
404      to pkg/seaice):
405      - new routines thsice_map_exf and thsice_get_exf provide the interface
406      - add an additional formal parameter to thsice_solve4temp
407    o pkg/exf:
408      - add new fields wspeed, snowprecip (to be able to couple to thsice)
409      - correct Stefan-Boltzmann constant
410      - new parameter for longwave surface emittance
411      - separate some stuff from exf_bulkformulae into new routines  
412        exf_radiation, exf_wind
413      - add new parameters and constants: longwave emissivity for ocean, ice
414        and snow, evaporation parameters over ice
415      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
416        either wind from stress or stress from wind
417    o pkg/thSIce:
418    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
419    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
420       and THSICE_CALC_THICKN
421    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
422    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
423      to make debugging easier.
424    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
425    o pkg/bulk_force:
426      - clean-up comments and parameters ;
427      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
428    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
429      generate new output for test-experiment: aim.5l_cs.thSI
430    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
431      testreport accordingly
432    
433    checkpoint58e_post
434    o SEAICE_CGRID adjoint done
435    o R_STAR adjoint implemented.
436      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
437      * need to sort out init. of h0facc, etc.
438    o Make pkg/profile fully independent of ecco,cost, etc. stuff
439      to be able to use it in pure forward.
440    
441    checkpoint58d_post
442    o upgrade simple test-experiment to tutorial example:
443     step.1: duplicate the experiment and (step.2) will remove the old copy.
444      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
445      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
446      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
447      tutorial_global_oce_biogeo    <- copy of dic_example
448      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
449      tutorial_plume_on_slope       <- copy of plume_on_slope
450      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
451      tutorial_global_oce_optim     <- empty for now (David ?)
452      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
453     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
454    o correct a sign problem in cost_scat.F
455    o obcs and ptracers: fix boundary conditions for advections schemes
456      with larger stencil
457    o thsice adjoint: start
458    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
459      completeness
460    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
461      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
462    o ptracers adjoint:
463      * avoid extensive recomputatations
464      * fix missing re-init. of gptr (missed by TAF)
465    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
466      me to turn off the excessive output to STDOUT that this package produces
467    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
468      and add those terms in Vector-Invariant formulation.
469    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
470      if the control period (xx_hfluxperiod etc) is 0
471    o in profiles pkg, clean routines and fix details
472    o in ecco pkg, reading ssh data:
473      fix problem in case the model does not start at iter0=0
474    o fix mnc-pickup/restart for ptracers
475    o new package prifiles:
476      code to compute profile-based cost by Gael Forget
477      (modifs in ecco, ctrl, autodiff)
478    o Benign bug fix in initialization (spotted by M. Mazloff) of
479      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
480    
481    checkpoint58c_post
482    o adjoint: finish NLFS adjoint and provide reference output in
483      verification/global_ocean.90x40x15/results_ad_nlfs
484    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
485      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
486      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
487      with SEAICE_CGRID defined.
488    o move calendarDumps from "data" to "data.cal" and clean-up the code
489      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
490    o add useEXF & useCAL flags (for now, set in hard-coded way)
491    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
492      (were missing in NH mode, and wrong in quasihydrostatic mode).
493      waiting for Chris updated version of calc_gw to add those CALLs.
494    o fix bug in quasihydrostatic S/R ;
495      add a test for this option: global_ocean.90x40x15.qshyd
496    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
497      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
498    o add on/off flag useOffLine for package OFFLINE
499    o seaice:
500      - modify advection so that it works also on the C-grid
501      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
502        problem in multi-tile runs with C-grid
503      - add flags for clipping ice velocities and/or masking solver forcing
504      - fix drag (ocean on ice) formulation and a bug that caused noise in the
505        C-grid solver
506      - added a few comments to seaice_diffusion.F
507      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
508        are now exclusive)
509      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
510        required re-ordering the code a little:
511       + make DAIRN global variable (defined in SEAICE)
512       + move computation of the viscosities eta and zeta into a new separate
513         routine (because I need to recompute them in seaice_ocean_stress.F)
514    
515    checkpoint58b_post
516    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
517      update output.txt of exp. aim.5l_cs.thSI
518    o various mnc cleanups and improvements:
519      + shrink lookup tables by factor of ~4
520      + better error reporting when running out of lookup space
521      + able to handle longer path/file names (up to 500 chars)
522    o adjoint:
523      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
524      - TBD: "hidden" mom_vecinv recomp. in dynamics
525    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
526     (allow to differentiate between forcing components using new integer flags:
527      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
528     and add new flag to put Dissipation tendency out of Adams-Bashforth.
529    o ecco
530      - enable trend removal from SSH anomaly obs.
531    o adjoint
532      - a fix for PmEpR when #undef EXACT_CONSERV
533      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
534      - try to fix "hidden" recomp. in forward_step for NLFS
535        (NLFS seems broken sometimes after I checked it in)
536    o seaice:
537     - add c-grid version of the dynamic solver:
538       + three new routines that are the c-grid substitute lsr, dynsolver
539         and ostres
540       + put a few fields that were local to dynsolver into global common
541         blocks, so that I can move the computation of stresses etc into
542         seaice_lsr (saves coding but may break the adjoint).
543     - replace more hardwired parameters by runtime parameters
544     - add ice masks that mask the rhs of the implicit solvers where there
545       is no ice (commented out in seaice_dynsolver, because i am not sure
546       if this works properly), eventually this should replace the clipping
547       of ice velocities in seaice_dynsolver to +/-40cm/s.
548    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
549      include it only where its needed
550    o move balancing of fluxes before the call of external_forcing_surf
551    o seaice:
552      - correct units of turning angles (now they are really in degrees)
553      - move computation of GWATX/Y out of main routine into dynsolver
554      - initialize GWATX/Y in seaice_init
555    o Apply mask on Fresh-Water flux (needed for SSH forcing).
556      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
557    o seaice: add runtime flags for turning angles (default to zero)
558    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
559      and trend from exf forcing and ctrl control adjustments
560    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
561      (since checkpoint57x_post)
562    o change the default rotation period to 86164.s = the Earth rotation
563    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
564      and based on a reference stratification. Tested within hs94.cs-32x32x5.
565    o seaice advection: add code for choosing between the default (2nd order
566      central differences) and multiDim advection schemes provided by
567      pkg/generic_advdiff
568    o seaice:
569      - removed all references to SEAICE_GRID.h fields from
570        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
571        (cubed-sphere configuration will change a little)
572      - grid computations in seaice_init are obsolete now.
573      - cleaned up code a little so that is easier to read (hopefully).
574      - added new (better?) discretizations of default advection and diffusion
575        (turn on with SEAICEuseFluxForm)
576      - replace 1 in 3d global fields by kSurface in growth.F
577      
578    checkpoint58a_post
579    o seaice:
580      - bug fix in advect.F
581    o shelfice:
582      - separate shelfice load anomaly from pload (breaks with time
583        dependent forcing), => introduce constant field shelficeLoadAnomaly.
584        Its default is 0., but it may be computed more cleverly from (unknown)
585        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
586        done offline. A good approximation of the pressure load anomaly is
587        necessary to avoid large initial adjustment processes underneath
588        deep-reaching shelfice.
589      - small fix in ISOMIP shelfice_thermodynamics
590      - add more sophisticated thermodynamics of Hellmer (1989), this is
591        now the default
592      - give a few constants more intuitive names
593    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
594      if bulk formulae are used in long integration (especially EmPmR). Turn
595      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
596      if balancePrintMean, the imbalance that is substracted is printed to
597      STDOUT.
598    o fix bug (typo) in obcs_apply_eta.F
599    o add a new package shelfice which enables us to model the circulation
600      underneath shelf-ice with draughts of hundreds of meters.
601     - works
602     - to do: + include improved thermodynamics
603              + check whether kSurfC (from model/inc/SURFACE.h) can be used
604                instead of new field kTopC
605              + can we use topoFile, Ro_surf and existing code in ini_depth.F
606                instead of new field R_shelfIce and new code in ini_depth.F
607                and ini_mask_etc.F?
608              + adjust vertical mixing schemes?
609    o seaice pkg:
610     - add a cpp-flag to include a simple formula for a salinity dependent
611       freezing point of sea water at the surface
612     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
613       meridional stresses are now different (and hopefully correct)
614    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
615       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
616       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
617    o pkg/diagnostics: add options and parameters for regional-statistics
618       diagnostics ; define regions by reading a region-mask from a file
619       (might add other options later)
620    o pkg/bulk_force:
621     - add option and parameters to use AIM surface-flux formulae.
622     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
623       others forcing fields (defined in PARM05, parameter file "data") are loaded
624       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
625     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
626     - use the right EXCH call for uwind,vwind (to work on CS-grid).
627     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
628       and parameters (note: calcWindStress replaces .NOT.readwindstress).
629     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
630    
631    checkpoint58
632    o add "--embed-source" option to genmake2 which, when the supporting
633      tools can be compiled (as determined by genmake2) will turn on the
634      embed_files package which then embeds the entire MITgcm source code
635      (*.[fFhc] + Makefile) used for the build within the executable
636      - requested by CNH but off by default
637      - adds a paltry <9MB to the mitgcmuv executable in most cases
638      - only writes the output when useEMBEDSRC in eedata is true
639    o clean up 3-dim. relaxation codes:
640      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
641      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
642      * Thanks to Tom Haine for testing!
643    
644    checkpoint57z_post
645    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
646      affects output (@ truncation level) of exp. plume_on_slope ; updated.
647    o fix the pickup behavior for obcs in combination with ptracers
648    o fix a bug in ptracers_external_fields_load
649    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
650      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
651    o transfered surface NH pressure to eta field (if exactConserv).
652    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
653         and update lab_sea output.txt file.
654    o completing 3-dim. relaxation code: additional term
655         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
656      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
657      * At compile time, in "EXF_OPTIONS.h" set
658          #define  ALLOW_CLIMTEMP_RELAXATION
659          #define  ALLOW_CLIMSALT_RELAXATION
660      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
661          tauThetaClimRelax3Dim = 15552000.0,
662          tauSaltClimRelax3Dim  = 15552000.0,
663      * 3 cases:
664          1) Use a constant-in-time 3-dim. field
665          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
666          3) Real-time relax. to time-evolving prescribed field
667    o Adding Laplacian-type smoothness constraint on
668      initial and boundary (forcing) controls (ic, bc)
669      * enable at compile-time via
670        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
671      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
672      * Absolute scale somewhat unclear so far
673      * no area weighting was included since no other cost term does so far
674    
675    checkpoint57y_post
676    First step for a NLFS adjoint
677    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
678    o new init. routines for calc_r_star, calc_surf_dr
679    o still need to deal with ini_masks_etc
680    o testreport seemed happy
681    checkpoint57y_pre
682    
683    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
684    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
685    o add new offset feature to offline pkg (plus minor cleanup)
686    o cfc fixes for final year of integration
687    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
688      be in GCHEM_OPTIONS).
689    
690    checkpoint57x_post
691    o fix testreport Pb in multiple test experiment.
692    o cleanup our namelist syntax in verification:
693      - make it more F95 standards compliant (some work still needed)
694      - allows the vast majority of our tests to work with gfortran
695    o Non-Hydrostatic:
696     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
697     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
698    o Allow to apply AB on T,S rather than on AB(gT,gS):
699     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
700     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
701       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
702     - need a "clever" read_pickup to restart from the other AB formulation
703    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
704    o remove some unused variables (reduces number of compiler warnings)
705    o adjoint
706      * Disable useVariableViscosity for adjoint for time being
707        (there are a number of extensive recomputations)
708      * Initialize certain variables needed for adjoint
709    
710    checkpoint57w_post
711    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
712                 fix the singleCpuIO RS version of MDSWRITEFIELD
713       and add a WARNING if using globalFiles=T with multi-processors.
714    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
715      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
716    o tracer advection scheme:
717      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
718       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
719       was not very convenient).
720      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
721       (further tests needed for the implicit DST & Flux-Limiter schemes).
722    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
723      and sRef for convenience, handy, when you want to initialize
724      ptracers in a large domain with a constant non-zero value. Also,
725      untangle ptracers_init.F a little.
726    
727    checkpoint57v_post
728    o change dome exp. to use variable viscosity in side-drag terms.
729    o remove all the files from the cfc_offline test since they are now
730      incorporated into tutorial_cfc_offline which has been producing
731      identical results for a few days of testing
732    o add new parameter: sideDragFactor to enable half-slip-side BC
733      and change side-drag S/R to use viscosity from mom_calc_visc
734      (can switch back by setting sideDragFactor=0.); affects results at
735      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
736       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
737    o vorticity & strain are now computed without masking, to account for
738      no-slip-side BC in variable viscosity calculation ; mask is applied
739      anyway later on, before computing advection/coriolis terms.
740    o modify exp4 to test new obcs support for reading from external files
741      and for passive tracers
742    o fix behavior of ptracers_monitor when monitor output is written to a
743      netcdf-file; still not independent of monitor.F (writes in the same
744      file).
745    o change default value of tRef (put a uniform, meaningful value for ocean
746      & atmos) and initialize sRef (was missing, as Martin mentioned).
747    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
748      to be proportional to enstrophy dissipation length.  Thus,
749       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
750      This is now consistent with Smagorinsky and with the manual.
751    
752    checkpoint57u_post
753    o OBCS and PTRACERS: add open boundary support for passive tracers
754      - either use homogenous (pseudo) v.Neumann conditions or prescribe
755        OB-values from file; this is not different from the way theta and salinity
756        are treated
757      - however, Orlanski-radiation conditions are not supported, and the model
758        will stop if you use pTracers and Orlanski at the same time.
759      - beefed up the rountine obcs_external_fields_load: now only those open
760        boundary values are overwritten with values from files for which there
761        are really files, otherwise the OB-fields remain untouched. This makes
762        it possible to use different OBs at different ends of the domain (as
763        with EXF)
764    o reduce number of exch calls in shap_filt (s2).
765    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
766      truncation level) 4/5 MLAdjust test results (11&12 digits match).
767    
768    checkpoint57t_post
769    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
770    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
771      same truncation, independent of the face number: affects affects several
772      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
773    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
774      note that biharmonic viscosity + no-slip was not tested in any experiment.
775    o fix bug in non-linear free-surf side-drag ; generate new output for
776      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
777    o make mnc honor the writeBinaryPrec flag for most kinds of output
778    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
779    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
780      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
781    o add brackets in multi-terms sum to get same truncation, independent of
782      the face number (manage to get exactly same value of gU,gV at the cs-edge)
783      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
784    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
785      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
786      a maximum grid-scale Reynolds number.  Also, changes all length calculations
787      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
788      Suggested values of viscosity parameters found in mom_calc_visc.
789      Many new viscosity diagnostics available.
790    
791    checkpoint57s_post
792    o Add clearing-house for viscosity calculations, mom_calc_visc and
793      correct numerous bugs in LeithD and Smagorinsky discretizations.  
794      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
795      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
796      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
797      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
798      The Strain-Tension form is now called with useStrainTensonVisc=.true.
799      ViscAhStrain and viscAhTension are now retired.
800    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
801    o In response to JMC's bug report, genmake2 now ignores any soft-links
802      that it finds in the *current* directory when searching for files.
803      Soft-links found in any other source directories will still work as
804      they did before.
805    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
806      a C routine to unlimit the stack size
807    o mnc-ify pkg/aim snapshot vars
808    o mnc-ify pkg/land as requested by Daniel
809    o various changes to mnc including:
810      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
811      - output can now be grouped so that all files within a group
812          change the ITER portion of their names in lock-step together
813      - can now read ("global") PER-FACE (in addition to PER-TILE) files
814          and works with both EXCH1 and EXCH2 (but needs more testing)
815      - writing works for all verification test cases w/ g77 on Linux
816    
817    checkpoint57r_post
818    o make MNC variable initialization happen earlier
819    o add diagnostics for (almost) each term of the momentum Eq.
820    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
821    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
822    o remove MINIMAL_TAVE_OUTPUT option ;
823      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
824    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
825      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
826    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
827    o add time-dependent SST, SSS control
828    o cost terms in ecco/ modularized (new cost_generic.F)
829    o cost_averages routines are modularized (new cost_averagesgeneric.F)
830    o new infrastructure for seaice model vs. obs misfits in seaice/
831      * driver from the_main_loop.F is seaice_cost_driver.F
832      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
833      * gradient check in Exp. 6a of natl_box_adjoint/
834    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
835      (see README file)
836    
837    checkpoint57q_post
838    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
839    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
840      - bug was reported by Jean-Michel and Ian Fenty
841    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
842      update exp. cpl_aim+ocn output.
843    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
844      Needed for high-res. runs with large global files
845      to be able to limit tapelev size
846    o Changed some tests for adjoint:
847      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
848      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
849      * global_ocean.90x40x15/ back to default 3-level checkpointing
850    o Modifications to enable scripted COMMON to MODULE conversion
851      * verification/OpenAD/code/ has necessary scripts and description;
852      * converts, compiles and runs successfully;
853    
854    checkpoint57p_post
855    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
856    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
857      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
858    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
859    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
860      (was already the case for dissipation with mom_vecinv,
861       and also the case for grad.PhiHyd when staggered-timeStep)
862      This will allow to put dissipation out-off the AB time-stepping.
863     Unfortunately, affects truncation error. Update output of exp. that "fails"
864      (cg2d matching number) and leave the others for later: front_relax(10),
865      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
866      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
867    
868    checkpoint57o_post
869    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
870      (2) its ready to be documented during the 20050801 DocFest
871    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
872      for ideal_2D_oce and lab_sea on linux_ia32_g77
873    o set to #undef CTRL_SET_OLD_MAXCVARS_30
874      in global1x1_tot/code_seaice_adj to access indices 32, 33
875      (worth another tag)
876    
877    checkpoint57n_post
878    o adding precip control xx_precip 32
879    o adding swflux control xx_swflux 33
880    o Replacing 10 forcing penalty cost routines by 1 generic.
881    o Implementing partitioning in time-mean and variable adjustment
882      for atmos. state.
883    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
884    o in natl_box_adjoint:
885      * updated exp 1 to 10
886        (but does not have time-mean vs. variable split results yet)
887    o updated global1x1/*_seaice_adj/
888      to incorporate latest changes
889    o enable useSingleCpuIO for mdsio vector routines
890      (applies in particular to tapelev I/O)
891    o removed inefficient K-loop in all active_file*control*.F
892    
893    checkpoint57m_post
894    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
895      and advect_cs (use EXCH-2 and standard cs-32 grid files).
896    o pkg/exch2: filling of face-corner halo regions is optional
897      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
898    
899    checkpoint57l_post
900     tag before updating tutorials (pre-release-2)
901    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
902       for output and interpolation of input fields onto model grid)
903    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
904       Affects results of exp. rotating_tank ; update output.txt.
905    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
906          and taking the square quantity and/or using a fraction-weight field.
907    o fix aim_diagnostics_init.F mate numbers.
908    o add mnc output capability to diagnostics/diagstat and update
909      our cvsignore files for the ACSII output generated
910    
911    checkpoint57k_post
912    o lab_sea now uses diagnostics package and provides a suite of
913      new EXF diagnostics output.
914    
915    checkpoint57j_post
916    o exf
917      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
918        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
919        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
920      * extended diagnostics output
921        - now includes all EXF variables
922        - hs, hl moved to common block
923        - separate S/R for diagnostics, called after ctrl vector is added
924        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
925        - EXFqnet contains true Qnet (i.e. includes qsw)
926      * updated verif. lab_sea, global_with_exf
927      * Rearranging hflux (exf_mapfields -> exf_getforcing)
928        to ensure that diagnostics sees a true EXFqnet
929    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
930    o diagnostics pkg: change pointers so that 1 diagnostic can be used
931      several times with different frequencies.
932    o mnc-ify the thsice package as requested by Daniel Enderton
933      - the monitor--MNC output needs work
934      - many attributes need to be added (most are currently blank)
935    o mnc-ify theaim_v23 package as requested by Daniel Enderton
936      - many attributes need to be added (most are currently blank)
937    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
938    o add Sadourny like discretization to the 4th.O vorticity advection scheme
939    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
940      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
941         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
942    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
943     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
944    
945    checkpoint57i_post
946    o Diagnostics package was changed: diagnostic allocation is now deactivated
947      by setting an empty file name in the namelist (used to be by setting 0 frequency)
948    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
949      add 1rst Order upwind vertical Shear.
950    o add a quick fix for A/B checkpointing in OFFLINE mode
951    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
952      end-run around the C/Fortran linking horror in eesup/src/timers.F
953    o added pkg/runclock: allows user to terminate run based on wall clock
954    o added non-hydrostatic scaling parameter: nh_am2
955    o pkg/my82: futile attempt to make results compiler-independent by adding
956      some "_d 0", etc. no effect.
957    o for mnc output, fill the 'T' coordinate var with myTime and create a
958      separate 'iter' variable for iteration count
959    o pkg/diagnostics:
960      add new capability: output of Global/Regional & per-level statistics ;
961      tested against monitor output (including land & thSIce) on various exp.
962    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
963    
964    checkpoint57h_done
965      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
966      data.diagnostics, data.gchem, data.ptracers) is done.
967    
968    o pkg/diagnostics: prepare for Global/Regional statistics.
969      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
970    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
971      and rename it: DIFFERENT_MULTIPLE
972    
973    checkpoint57h_post
974    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
975    o pkg/diagnostics: change output frequency, now in seconds (instead
976      of Nb of iterations). This requires to change data.diagnostics.
977    checkpoint57h_pre
978    
979    o in mnc, let the user create the output dir if both mnc_outdir_date
980      and mnc_outdir_num are false
981    o add fflags() to pkg/diagnostics which allows one to specify, on a
982      per-file basis, the file precision [default behavior is unchanged]
983    o added diagnostics to pkg/kpp, including computation of mixed layer
984      depth based on a temperature/density criterion
985    o updated verification/natl_box to test the new pkg/kpp diagnostics
986    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
987    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
988    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
989      not mnc -- this mistake was found by JMC and is now corrected
990    
991    checkpoint57g_post
992    o add Adams-Bashforth 3rd Order time stepping:
993      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
994      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
995    checkpoint57g_pre
996    
997    o make lambda[Theta,Salt]ClimRelax spatially varying
998      (default remains spatially uniform constant based on tau)
999    o added new control variables
1000      * init. uVel, vVel, etanN
1001      * lambda[Theta,Salt]ClimRelax
1002    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1003      (suggested by G. Forget)
1004    
1005    checkpoint57f_post
1006    o add parameter "baseTime" = model base time = time at iteration zero
1007      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1008      account for baseTime shift
1009    o move Coriolis arrays from PARAMS.h to GRID.h
1010    checkpoint57f_pre
1011    
1012    o mnc-ifying the seaice package
1013    o introduced an alternative length scale calculation for use in the limiting
1014      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1015    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1016    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1017      as well as grad(vort3).  Made it compatible with both approximate form
1018      for the cubed sphere and full form of these gradients.  Added flag
1019      useFullLeith to select between approximate and full form.  
1020    o add "d0" in getcon.F to reduce differences between compilers/platforms
1021      update output.txt of exp. fizhi-gridalt-hs
1022    o change port_rand funtion to allow to set the seed.
1023    o fix obscure MNC bug involving conversion between reals and integers
1024      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1025        new version is now more standards-compliant
1026    o adjoint-related modifications
1027      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1028      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1029      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1030    
1031    checkpoint57e_post
1032    o Adding eddy stress controls a la Ferreira et al.
1033    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1034    
1035    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1036      update output.txt of exp. fizhi-gridalt-hs
1037    o add more "Z" dimensions and associated coordinate vars to MNC
1038    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1039    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1040      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1041      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1042      months and years.  Requires pkg/cal.
1043    o diagnostics: add pickup functionality
1044      - off by default for backwards compatibility
1045      - current version only uses MDSIO -- MNC will be added
1046    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1047    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1048    
1049    checkpoint57d_post
1050    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1051    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1052      output from the diagnostics package
1053    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1054    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1055      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1056    o add coordinate variables to the MNC output from the diagnostics package
1057    o change MNC-flags default value: true when useMNC=TRUE
1058    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1059      the ability (off by default) to read the grid information using MNC
1060    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1061    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1062    o do snap-shot diagnostics at the middle of the time-interval (instead of
1063      at the end).
1064    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1065      new test for AIM with thSIce + slab-ocean
1066    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1067    o move state variable diagnostics to the beginning of the time step ;
1068      (note: still needs some work specially for snap-shot diagnostics)
1069      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1070    
1071    checkpoint57c_post
1072    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1073    o generate new output.txt files on faulks with g77 & the new -ieee option
1074    checkpoint57c_pre
1075    
1076    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1077      update output.txt of exp. global_ocean.90x40x15
1078    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1079      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1080    o add saltFlux(+File) forcing capability with periodicExternalForcing
1081    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1082    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1083    o improvements for the MNC output from DIAGNOSTICS:
1084      - correct handling of the unlimitied dimension
1085      - all dims now have associated coordinate variables
1086      - variables located at U, V, and Corner ("Z") points are now written
1087        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1088        *all* data points are output
1089    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1090    o added pkg/seaice/seaice_monitor.F
1091    o mdsio_readfield.F can now read files visible only to master MPI process.
1092    o pkg/seaice: some test code for ice-modified ocean stress
1093    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1094      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1095      spurious negative numbers for precipitation and humidity.  Will cause
1096      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1097    o pkg/ctrl/
1098      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1099        May be enabled via doPackDiag
1100      *  introduce z-scaling of
1101         + gradient (doZscalePack) and
1102         + control (doZscaleUnpack)
1103    o pkg/mdsio/
1104      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1105      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1106    
1107    checkpoint57b_post
1108    o simplify options in diagnostics_fill arguments (remove weird combinations)
1109    o fix MNC coordinate variables so that they now contain per-face index
1110      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1111      general, EXCH2 grids are only aligned to a "local" coordinate system
1112    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1113    o Implement instantaneous output within pkg diagnostics:
1114      setting a negative frequency in data.diagnostics produces
1115     "snap-shot" output (as opposed to time-average if freq > 0)
1116    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1117      NOTE: change ptracer diagnostics name: use 2 characters to work with
1118            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1119    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1120      becomes the coordinate variable for the 'T' dimension
1121    o add CF-style coordinate variables to MNC
1122      - just a first cut:  numbers are meaningless on the cubesphere and
1123        missing along the T axis but otherwise it works!
1124    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1125    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1126    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1127      this is based directly on what the model compute, so that the content of
1128      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1129    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1130    o clean up build options files for SunOS, in particular
1131      - remove -traditional from xmakedepend
1132      - change -xarch=v9 to -xarch=native for f77
1133      - restore use of make (not gmake)
1134      - add CC=gcc if using g77
1135    o changes per discussion of AM, JMC, & EH3 today:
1136      - move redundant "grid" variables out of "state" -- in preparation of
1137        creating proper CF-style coordinate variables and in recognition
1138        that any/all grid variables can be easily copied (eg. w/NCO) from
1139        the grid files into any of the other NetCDF files
1140      - *always* output grid variables with MDSIO (this will eventually be
1141        changed)
1142      - output MNC grid file if useMNC is true
1143    o every instance of _END_MASTER() has been found and replaced with
1144      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1145      preprocessors
1146    o re-arrange diagnostics pkg initialisation:
1147     - allow each package to extend the available diagnostics list
1148     - add some checking and fix small problems (multi-threaded, ...)
1149     - new S/R diagnostics_fill (replace fill_diagnostics):
1150       look through the short list of active diag. (instead of the long list)
1151       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1152    
1153    checkpoint57a_post
1154    o this set of changes restores TAMC compatibility
1155      tested for global_ocean.90x40x15 adjoint on trough
1156      (what a pain)
1157    
1158    checkpoint57a_pre
1159    o some modifs in tools/build_options for sunos
1160    o call ctrl_pack for ctrl at end for optimcycle=0
1161    
1162    checkpoint57
1163    o add horizontal bi-harmonic viscosity for vertical velocity
1164      - new parameter viscA4W (defaults to viscA4)
1165      - affects only non-hydrostatic code
1166      - to be done: no-slip lateral boundary conditions
1167    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1168    o implement Implicit Vertical advection for pTracers
1169    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1170      (implemented also for implicit vertical diffusion & advection)
1171    o OBCS: extend application of tracer open boundary conditions
1172      to a strip beyond the boundary of width Olx/Oly
1173    o add call monitor to TAF set of required calls (flow directives)
1174      and include in natl_box_adjoint
1175    o untangle a few ifdefs related to cost, ctrl, autodiff
1176      untangel a few ALLOW_ECCO_OPTIMIZATION
1177    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1178      (theta2, salt2 in ecco_cost_weights)
1179    
1180    checkpoint56c_post
1181    o OBCS as control variables
1182      - update ctrl_ad_diff.list, obcs_ad_diff.list
1183      - remove balance of obcs controls from default
1184      - fix index bug nobcs in ctrl_init
1185      - fix dummy fields filen in ctrl_pack
1186      - add dummy weights for obcs
1187    o lsopt: comment out fort.94 output
1188    o optim:
1189      - remove unnecessary header files
1190      - adjusted namelists
1191      - add xerbla.F to Makefile
1192    o exf:
1193      - multiple modifications of exf_check_range
1194      - unit change in exf_init_runoff from [m/year] to [m/s]
1195    o mdsio:
1196      - i/o-vector change debugLevel from debLevA to debLevB
1197    
1198    checkpoint56b_post
1199    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1200      is called from DO_THE_MODEL_IO
1201      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1202      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1203      - clean up PTRACERS_WRITE_TIMEAVE a little
1204    o add another verification experiment that tests both the cfc-pkg and
1205      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1206      reactive tendencies treated inline with regular timestepping
1207    o testreport previously did a lousy job of comparing small numbers, so
1208      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1209      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1210      testreport.
1211    o ptracers_monitor: bug fix for MPI
1212    
1213    checkpoint56a_post
1214    o GCHEM: finish reorganizating the package
1215      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1216        (introduces another 3D-array for each passive tracer, but only if
1217        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1218        gchemTendency is not needed because the timestep is done separately)
1219      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1220      - GCHEM is now---more or less cleanly---separate from PTRACERS
1221      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1222        so clear to me how that should be done in a general way.
1223    o CFC: improve formatting of output in CFC_ATMOS
1224    o PTRACERS:
1225      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1226        that ALL experiments with ptracers enable can be checked. This makes
1227        GCHEM_MONITOR obsolete.
1228      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1229        monitorFreq
1230      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1231    o add PTRACERS (PTR0[1-5]) to testreport output
1232    o exf_check_range:
1233      * default changed to .TRUE.
1234      * will check values for niter0 if debLevA, every timestep if debLevB
1235      * STOP in exf_check_range if 'out of range'
1236      * range chosen generous to allow for potential extema
1237      TBD: a version with stricter range
1238           permitted range would be runtime parameters
1239  o GMredi:  o GMredi:
1240    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1241    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 1244  o GCHEM:
1244    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
1245      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1246    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1247      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1248        this flag is now only visible within GCHEM-pkg routines.
1249      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1250        be replaced by a 3D array that is computed before thermodynamics; for
1251        this, the tracer ID iTracer had to be included into the parameter list
1252        of ptracers_forcing
1253      - set up forward_step to call gchem_forcing, that will replace
1254        gchem_forcing_int in ptracers_forcing
1255      - cleaning up
1256  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
1257    
1258  checkpoint56  checkpoint56

Legend:
Removed from v.1.390  
changed lines
  Added in v.1.795

  ViewVC Help
Powered by ViewVC 1.1.22