source: lmdz_wrf/trunk/WRFV3/external/io_grib1/WGRIB/Changes

v1.8.0.9i: 12/04 fixed typo introduced 11/04 (table 129, entry 192)
v1.8.0.9h: 11/04 updated table ncep-129 (strange entry)
v1.8.0.9g: 9/04 fix if (gds && GDS_Harmonic_type(gds) == 1)
           found by Graziano Giuliani 
v1.8.0.9f: 8/04 added ecmwf table 151
v1.8.0.9e: 8/04 changes of CFS time ranges
v1.8.0.9d: 7/04 fixed reanal grib table NLON -> ELON
v1.8.0.9c: 6/04 chaged UVI defn ncep opn table
v1.8.0.9b: 6/04 added table 132 (global reanalysis)
v1.8.0.9a: 6/04 updated table 129,130
v1.8.0.9: 5/04 added new time codes 132-135, changed time code 51 (clim)
v1.8.0.8: 4/04 added -ncep_ens option
v1.8.0.7e: 3/04 multiple user tables (fix open)
v1.8.0.7d: 3/04 extern minute -> extern int minute
v1.8.0.7c: 3/04 for clim (51) don't print 'anl'
v1.8.0.7b: 2/04 update NCEP grib table 129
v1.8.0.7a: 11/03 update NCEP grib table 131
v1.8.0.7: 10/03 Mods fron Norwegian Meteorological Institute
                fixed ec table 131, and enhansed ex_ext.c
v1.8.0.6: 9/03 added time codes 128-131 (for RR)
v1.8.0.5: 9/03 fix scan mode and change format
v1.8.0.4: 9/03 new dwd tables and -dwdgrib option (thanks to Helmut P. Frank)
               updated formats_update.txt for -dwdgrib option
v1.8.0.3k: 7/03 fixed N/S vs grid wind diagnostic with -v option
                  found by Dusan Jovic
v1.8.0.3j: 6/03 fixed level 206 (was 205)
v1.8.0.3i: 5/03 updated ncep table 131 
v1.8.0.3h: 5/03 updated ncep table 131
v1.8.0.3g: 4/03 ecmwf table 128, 140 (names from ECMWF web site), updated 131
v1.8.0.3f: 4/03 updated ncep131, ncep130, ncep-opn
v1.8.0.3e: 3/03 fix level 141, update tables 130 and 131
v1.8.0.3d: 2/03 added prelim ncep grib tables 130 and 131
v1.8.0.3c: 1/03 Reanalysis Project updates: scan mode in english, 
    grid vs NS winds, and dusan.jovic@noaa.gov: ss2dEGRID support
v1.8.0.3b: 1/03 minor update: changed units of CICE in NCEP tables
v1.8.0.3a: 11/02 update ncep_opn and add ncep_129 table
v1.8.0.3: 10/02 update levels and ncep_opn grib table
v1.8.0.2: 10/02 check gds before grib_check, redid level 117
v1.8.0.1: 10/02 added cptec gribtable 254
v1.8: 4/1/02: Decode of simple packed spectral data and some cleanup of the
     triangular grid (Luis Kornblueh, Max-Plank Institute of Meteorology)
v1.7.4.1a 12/01: added new entry to OMB grib table (REV)
v1.7.4.1 12/01: D. Haalman (METEO SERVICE weather research GmbH) 
               rewrote seekgrib.c
v1.7.4   10/01: Merged changes made by  Helmut P. Frank (DWD) to current 
                source code.  This adds DWD tables 1, 201, 202, and 203 
                as well as support for triangular grids based on an icosahedron
1.7.3.6: 5/01: added fractional mb, center to levels.c
1.7.3.5: 2/01: Handle grib files with precision greater than 31 bits
1.7.3.4a: 9/00: check for missing grib file
1.7.3.4: 8/00: polar stereo + lambert, always print direction increments
1.7.3.2: 6/00: undefined direction increments set to zero on -V output
1.7.3.1: 8/99: added new levels
1.7.3:   5/99: updated NCEP opn grib table
1.7.2:   5/99: fixed fictious error message with thinned grids and bitmaps
1.7.1:   2/99: fixed error in wrtieee_header affects only -H option
1.7.0b7: 1/99: preliminary support for NCEP ensembles
1.7.0b6: 1/99: changed "x12 hours" format to "hr" format
1.7.0b5: 1/99: fixed 3/6/12 hour forecast time units
1.7.0b4 11/98: updated (128,160) and new (129,130,131,140,150,170,180)
        ECMWF tables
1.7.0b3 10/98: added new time units
1.7.0b2 8/98: allow blank gribtab lines in definition, --v
1.7.0b 8/98: added "km" to Mercator meta-data
1.7: 7/98: fixed bitmap when nbits > 24 (theoretical bug)
1.6.2.5 5/98: fixed -H code so that all of GDS is written
1.6.2.4 4/98 beta: reanalysis ID code: needed for users of 1997 Reanalysis data
1.6.2.2 2/98 beta: rotated lat long grid (10)
1.6.2   1/98 added Arakawa E-grid meta-data
1.6.1b  changed 03TOT to O3TOT in ncep operational table
           note: typo originated in the original NCEP documentation
1.6.1a  12/97 made ncep_opn the default table
1.6.1   9/97 Added the "-d all" option
1.6.0   9/97 non-beta version, added operational NCEP table,
        optimized the ieee writes (2.5x faster on Cray, 20% on linux),
        new help screen
1.5.0b14 fix century mark: year=100 not 0
1.5.0b13 -4yr, use 4 digit year code
1.5.0b12 lat-long thinned grid support
1.5.0b11 Added -H option (PDS/GDS output to binary files)
1.5.0b10 Changed"0hr fcst" to "anl" for TR=10 and fcstlen = 0 (non-beta release)
1.5.0b9 Thinned grids support (preliminary)
1.5.0b8 Changed bitmap message
1.5.0b7 -PDS -GDS work for all inventories
1.5.0b6 Added -verf to print "verification" time, new grib2ctl for -verf
1.5.0b5 Added Lambert Conformal, -PDS and -GDS
1.5.0b1 Added ECMWF parameter table #128

1.5.0a  wgrib failing with no GDS and constant field.  Cannot determine 
(9/96)  the size of data without a center-dependent lookup table.
        Set length size of data to 1.

1.5.0   -v option: major changes, now an inventory
(9/96)  -V option: added century to date code, list parameter table number,
           added description of variable
        Added parameter table (NCEP-128) for the ocean modeling branch of NCEP.
        Added user-defined parameter tables.
        Note: changes are incompatible with grib2ctl.  Get new version.
         (old version works by changing "wgrib -v" to "wgrib -V".)
        V1.5.0 is the first version to be parameter-table aware.  As a
         result, wgrib will give a warning if it cannot find a matching
         parameter table.  The warning can be eliminated by either using
         a user-defined parameter table or by adding your table into
         the wgrib source.  (Contact w. ebisuzaki, Wesley.Ebisuzaki@noaa.gov).
        Built-in tables: NCEP-2, NCEP-128, ECMWF-160.
        Much faster flt2ieee routine, changed rounding factor in flt2ieee
         so that IEEE machines gets the correct last bit.
        Increased NTRY to 100 to accommodate Automation div headers.
        The 1.4.x series didn't last long (1 revision, 3/96 to 7/96).

1.4.1a  Several optimizations of the grib routines for reduced CPU usage.
(6/96)  Updated the NCEP parameter table and altered the print statement
        for climatological fields.


1.4 ******************************************************************
1.4 
1.4 BUG: Prior to v1.4, when the start of the grib message was less
1.4  than 160 bytes from the end of the file, wgrib would not find
1.4  the message.  This would only occur if a short grib message (< 160 bytes)
1.4  ended the file.  Basically I had assumed that a grib message
1.4  had to be 160+ bytes in length.  Well someone at NCEP decided
1.4  to write 84-byte grib messages!  About the only field that
1.4  can be described in a 84-byte message is uniform value of zero.
1.4
1.4  Fixed a bug in the return code, and made the code 10% faster.
1.4
1.4  Since this is a bug fix PLEASE upgrade to version 1.4.
1.4  Why not? It's free!  (3/96)
1.4
1.4 ******************************************************************


1.3.4h  Complaint about wgrib failing if the file has no GDS.  Since a GDS
(2/96)  is recommended (and is in every file that I have seen) I've never 
        included the code to create a GDS for prespecified grids.  This 
        version is a temporary fix. It sets the array size to NX x 1.
        [7/96: This temporary fix will have to do.  The GDS prespecified 
        grids are center dependent.  Since I don't have the tables, nothing
        is planned.]

1.3.4f  updated ECMWF parameter table (from M. Fiorino)
(11/95) support for the ECMWF stream parameter
        clean compiles using acc (SunOS) (acc is pickier than gcc -Wall)

1.3.4e  writing grib files made much faster
(11/95)
1.3.4d  minor change in error statement format
(9/95)
1.3.4c  didn't check for case where number of bits = 0! in NMC bug check
(7/95)
1.3.4   added check for bad bds "used bits" parameter (look for NMC bug)
(7/95)
1.3.3:  (preliminary) ECMWF parameter table added
(5/95)
1.3.2:  preliminary polar stereographics map support
(4/95)

To Do:
   decode spherical harmonics (need some examples to test on)
   complex packing?

Adding new parameter tables is pretty easy and I'm willing to add new
parameter tables for "operational centers". (Note, the GRIB center
identification numbers are assigned by the WMO.)