Grib1 To Grib2 Converter Online
Converter grib2 - grib Converter grib2 - grib Kevin Levey Mon Mar 24 14:12:21 EDT 2008. Previous message:. Next message:. Messages sorted by: There is also an easier way to get cnvgrib, wgrib2 and wgrib1 all precompiled and should work right out of the box. If you don't know about this, there is a great PERL script called Gribmaster. Go to It's a fantastic PERL script to download just about any NWS data set. We've run it successfully in our production environment for over a year now with perfect results.
Grb1to2.pl - grib1 to grib2 converter. Grb1to2.pl converts grib1 files to grib2. This perl script uses wgrib, wgrib2 and a few minor programs that are included with the wgrib2 package (gmerge, smallestgrib2). Here are some of the advantages of grb1to2.pl, Easier than some other solutions to compile. Many repositories include wgrib2 executables. Warning (cgribexDefParam): Can not convert GRIB2 parameter (4.3.0) to GRIB1! Cdo copy: Processed 4229496 values from 6 variables over 1 timestep. Warning (cgribexDefParam): Can not convert GRIB2 parameter (32.6.0) to GRIB1! Cdo copy: Processed 13001352 values from 4 variables over 1 timestep. ( 2.80s ) Thanks in advance for the.
The documentation is really good. You can fully automate your downloads, have them checked, converted and copied to other servers without using hundreds of your own scripts to do the same. It works on both our FEDORA CORE 4 32-bit linux AND CENTOS 5 64-bit servers and no compiling was necessary - just unzip and start using it. Even if you don't want to use this script, you can still get the cnvgrib program from the /bin subfolder.
USAGE: cnvgrib -g21 input(grib2) output(grib1) cnvgrib -g12 input(grib1) output(grib2) Hope this helps. Regards Kevin M Levey, MSc (University of Cape Town) Director of Meteorological Operations CustomWeather, Inc San Francisco, CA, USA -Original Message- From: mailto: On Behalf Of Eric Altshuler Sent: Monday, March 24, 2008 10:59 AM To: Subject: Re: Converter grib2 - grib StefanThere is the program 'cnvgrib' available from NCEP that converts between grib1 and grib2. It is complicated to build, since it requires several external libraries. You need a fortran compiler. I have built it successfully on linux using gfortran. The place to get it is: Download the following files: g2lib-1.1.0.tar w3lib-1.5.tar cnvgrib-1.1.5.tar Buildcnvgrib.pdf (build instructions, not too clear but OK if you know what you're doing) You also need the external libraries zlib, libpng and jasper.
The jasper library is available on the above web page but it's out of date. The latest jasper (1.900.1) is at and the latest libpng (1.2.25) is at Most recent linux installations should have zlib 1.2.3 included in the system libraries so you won't need to build zlib separately.
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However, libpng is updated quite often so if your system has libpng in the system libs, it's probably old. The build process is full of pitfalls (compiler flags, library and include search paths, etc.) so it is not for newbie types.
Best regardsEric L. Altshuler Assistant Research Scientist Center for Ocean-Land-Atmosphere Studies 4041 Powder Mill Road, Suite 302 Calverton, MD USA E-mail: Phone: (301) 902-1257 Fax: (301) 595-9793 - Original Message - From: 'Stefan Gofferje' To: Sent: Monday, March 24, 2008 1:03:55 PM GMT -05:00 US/Canada Eastern Subject: Converter grib2 - grib Heiis there a reliable converter from grib2 to grib which knowingly works well with NOAA GFS data? I have a couple of issues with GrADS2 (missing axis labels, no UDFetc.) so I would like to go back to 1.9 which doesn't understand grib2. Greetings from FinlandStefan Gofferje - Since light travels faster than sound, is that why some people appear bright until you hear them speak?. Previous message:. Next message:.
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Note: While we are transitioning our web pages, products marked with an (.) link to product pages on the old system. Products on those pages are up-to-date, but links on those pages may go to old information or may be broken. Thank you for your patience! About the NDFD GRIB Decoder The National Digital Forecast Database (NDFD) is a database put together by the National Weather Service (NWS) to provide forecasts of sensible weather elements (e.g., cloud cover, maximum temperature) on a seamless grid. The NDFD is currently given out to the public as a GRIB2 file.
Grib1 To Grib2 Converter Online Video
For more information about how and why the NDFD was created, please see the GRIB2 is the second version of the World Meterological Organization's (WMO) standard for distributing gridded data. It is described in the WMO GRIB2 Document FM92-X11 GRIB. (see:, provided by the National Centers for Environmental Prediction (NCEP), it has complete tables, but is missing the notes and regulations.) The problem, when the NDFD first came out, was that the only way to decode a GRIB2 message was to use the GRIB2 library. This required the user to write code, and then refer to the WMO's specifications to decipher the 'meta' data (e.g., variable type, variable unit, reference date time, valid date time, etc). This defeated the original purpose of the NDFD which was to make the digital data easy to use by the public. To resolve this the Meteorological Development Laboratory (MDL) created a driver for the GRIB2 library. The driver, known as 'degrib' (aka 'NDFD GRIB2 decoder'), was originally designed to:.
Provide an example of how to use the GRIB2 Decoder library by making documented source code available to users. Since the time that NDFD came out, NCEP has created a more complete. Since people were familiar with the degrib driver, MDL continued to maintain the degrib driver program, but has transitioned to using the NCEP library. Be able to convert from GRIB2 to selected file formats such as ESRI shapefiles (.shp), ASCII comma sepearated files (.csv), NetCDF files, and binary float files (.flt) (useful in conjunction with GrADS, ESRI ArcGIS, or ESRI ArcView 3 + Spatial Analyst extension). Enable users to understand the 'meta' data produced by the GRIB2 library without needing to refer to the WMO's specifications by creating an ASCII (.txt) file that does the necessary lookups in the WMO's GRIB2 specification tables. To encourage the use of the NDFD, degrib was designed to run either via a Graphical User Interface (GUI), or from the command line, giving the user the flexibility to run the program manually or via a script or program. For additional portablilty, the GUI aspect of degrib uses.