NOTE: The decoders mailing list is no longer active. The list archives are made available for historical reasons.
On Thu, 23 Jan 2003, HOETH, BRIAN R. (JSC-ZS) (LM) wrote:
Robb, I have been plowing through all of the online documentation on my.unidata.ucar.edu and I guess I'm slightly overwhelmed? What are the basic steps I should take to install decoders.tar.Z?
Brian, Here's a url to the old web site, the info is more current there. Haven't had time to update new site my.unidata yet http://www.unidata.ucar.edu/packages/decoders/
I guess I need to install netCDF and netCDF perl in order for the decoders.tar.Z package to work properly? I am also wanting to upgrade my
There are 3 packages that need to be install for the decoders packages. - udunits - netcdf - netcdf perl I would install them in the above order.
version of LDM to the latest version. Is there a specific order in which I
I probably install the LDM first. http://www.unidata.ucar.edu/packages/ldm I would look at these tags on the page: # LDM Preinstallation Requirements # LDM Binary Installation Check List # LDM Source Installation Check List # LDM Setup I would install the binary if it's possible.
should install things (i.e. LDM first, then netCDF, then netCDF perl, then decoders.tar.Z) or does it matter? Also, where do netCDF, netCDF perl, and decoders.tar.Z typically get installed? We have a user account "ldm" where our LDM stuff is installed under /home/ldm, is this the ideal place for netCDF, netCDF perl, and decoders.tar.Z to be installed as well or does it matter?
A common practise is to install the packages in the LDM home dir. Some users also make a decoders and util dirs under LDM home where they place all the binaries. Then ~ldm/decoders ~ldm/util are added to the PATH variable so all the ldm programs can find them. Robb...
Thanks, --------------- Brian Hoeth Spaceflight Meteorology Group Johnson Space Center Ph: 281-483-3246 Ops: 281-483-1051 -----Original Message----- From: Robb Kambic [mailto:rkambic@xxxxxxxxxxxxxxxx] Sent: Friday, December 06, 2002 4:40 PM To: decoders@xxxxxxxxxxxxxxxx Cc: decoders Subject: Decoders release 2.4.0 Hiya, I'm pleased to announce the beta release of Decoders 2.4.0. This release includes many changes as well as a new program, 'gribtocdl'. Most of the changes are to add parameters and levels for new models and grids, such as the AVN model on a 1-degree grid (avn-1.0x1.0.cdl). The new 'gribtocdl' program creates a CDL file from GRIB files. Much of the work was contributed by Arild Burud and Terje Reite from the Norwegian Service Centre for Climate Modeling at the Norwegian Meteorological Institute. I wish to thank these developers on behalf of the Unidata community. Since this is a beta release, I would appreciate help in testing it and reporting problems. A couple of gribtocdl notes: - Use a representative dataset when creating a CDL file with gribtocdl. If the dataset is missing a variable, it will also be missing in the CDL. - Consider the created CDL as a starting point, minor tweaks are usually needed. - The external table file feature for variable name override has not been tested much, but needs to be used with gribtocdl as well as gribtonc to override variable names. - Default variable names follow NUWG conventions. I would have liked to test the code more exhaustively but did not want to further delay the release. If problems are found, please send email to support@xxxxxxxxxxxxxxxx with information necessary to reproduce the problem, error messages, and log messages. Thanks, Robb... Included man page from gribtocdl: User Commands GRIBTOCDL(1) NAME gribtocdl - create netCDF CDL-file from GRIB dataset SYNOPSIS gribtocdl [-v] [-g tabfile] [-q qspecs] gribfiles DESCRIPTION This program decodes GRIB products and generates to stdout the corresponding CDL code that can be used in gribtonc(1) to convert the GRIB products to netCDF format. The default parameter translation is made according to a definition by UCAR, but the user may supply specific translations in a separate file by the -g tabfile option. The user-supplied translations will override the default ones. OPTIONS -v Verbose, reports decoding steps to stderr. -g tabfile Use GRIB-netcdf translation defined in this file. The format of this file is described below. -q qspecs Specification for how to expand so-called quasi-regular or thinned grids into rectangular grids. This argument is a comma-delimited text string that specifies the method of interpolation used (currently lin for linear or cub for cubic), and the latitude and longitude in- crements in degrees for the resulting grid (e.g. dlat=2.5,dlon=5.0). FORMAT OF GRIB TO NETCDF TRANSLATION The format of the translation table is as follows: Each line contains GRIB parameter number netCDF parameter name netCDF long description netCDF units An optional comment These are all separated by semicolon (";"). To comment a whole line, put any letter or special character (i.e. not a digit) in front of it. Trailing spaces are ignored before each semicolon, but not after. The GRIB number may have spaces in front. Parameters found in the separate file take precedence over the default parameter table, those not list- ed in the separate file are unchanged. All parameters will be named with a level suffix in addition to the name as- signed in the separate file. EXAMPLE The command gribtocdl -v -g my.tab sst.grib > sst.cdl will decode the products in sst.grib and generate the corresponding CDL code into file sst.cdl. The file my.tab contains a specific conversion table to be used when naming a parameter from GRIB. Later the GRIB file may be converted to netCDF by using gribtonc: gribtonc -v -g my.tab sst.cdl sst.nc < sst.grib The file my.tab looks like this: Grib;netCDF;long name ;units;comments 31 ;CI ;Sea-ice cover ;none ;(0-1) 34 ;SSTK ;Sea surface temperature ;K ; 151 ;MSL ;Mean sea-level pressure ;Pa ; 167 ;T2M ;2 meter temperature ;K ; SEE ALSO gribdump(1), gribtonc(1), netcdf(3), udunits(3) DIAGNOSTICS Error messages and log messages are written to stderr. =========================================================================== == Robb Kambic Unidata Program Center Software Engineer III Univ. Corp for Atmospheric Research rkambic@xxxxxxxxxxxxxxxx WWW: http://www.unidata.ucar.edu/ =========================================================================== ==
============================================================================== Robb Kambic Unidata Program Center Software Engineer III Univ. Corp for Atmospheric Research rkambic@xxxxxxxxxxxxxxxx WWW: http://www.unidata.ucar.edu/ ==============================================================================
decoders archives: