https://github.com/mdpiper/grib-helper-lib

IDL routines for accessing information in GRIB files
https://github.com/mdpiper/grib-helper-lib

Last synced: 13 days ago
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IDL routines for accessing information in GRIB files

• Host: GitHub
• URL: https://github.com/mdpiper/grib-helper-lib
• Owner: mdpiper
• License: mit
• Created: 2014-09-27T21:24:30.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2014-09-28T20:51:42.000Z (over 10 years ago)
• Last Synced: 2024-06-12T17:33:25.239Z (7 months ago)
• Language: IDL
• Size: 141 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# IDL GRIB Helper Library

IDL's [GRIB API](http://www.exelisvis.com/docs/GRIB_Routines.html) is

built on the C version of the

[ECMWF GRIB-API](https://software.ecmwf.int/wiki/display/GRIB/Home).

The IDL routines mirror those of the low-level ECMWF API, so it

requires a bit of programming to get even basic information from a

GRIB file.

The following routines,

built with IDL's GRIB API,

make it easier

to work with GRIB files:

* `GRIB_INVENTORY`: Creates an inventory of a GRIB file, returned

  as a string array. This is similar to using

  [wgrib](http://www.cpc.ncep.noaa.gov/products/wesley/wgrib.html) or

  [wgrib2](http://www.cpc.ncep.noaa.gov/products/wesley/wgrib2/) with

  the "-s" option.

* `GRIB_GET_RECORD`: Gets a single record, selected by index, from a

  GRIB file.

* `GRIB_GET_PARAMETERNAMES`: Gets the value of the `parameterName`,

  `name`, `shortName` or `cfName` key from each record in a GRIB

  file.

* `GRIB_GET_PARAMETER`: Uses `GRIB_GET_PARAMETERNAMES` and

  `GRIB_GET_RECORD` to extract all the records in a GRIB file with

  a given parameter name.

The IDL GRIB Helper Library

routines can be called from the IDL command line or used as

library routines in programs.

Although these routines have been tested on a variety of GRIB1 and GRIB2 files

from ECMWF, NCEP, NCAR, NOAA and AFWA,

GRIB is a tricky format,

so there's 

no guarantee that they'll work with every GRIB file.