NAME
IsobaricGRIB - GRIB files for air traffic
DESCRIPTION
These files are used by Avinor ATM systems but possibly also of interest to others. They contain temperature and wind forecasts for a set of isobaric layers (i.e. altitudes having the same pressure). There are two different formats, GRIB1 and GRIB2.
The files are (normally) produced every 6 hours. You can check the time when generated using the Last-Modified header or the `updated` key in `available`.
grib1
These files are in GRIB1 format (filetype GRB) for the following regions:
- europe
-
Area 90N -30W 40S 60E, resolution 1.25 degrees? (km?) FIXME
The following isobaric layers are included (in hundreds of feet?) FIXME
grib2
These files are in GRIB2 format (filetype BIN) for the following regions:
- southern_norway
-
Area 64.25N -1.45W 55.35S 14.51E, resolution .1 degrees? (km?) FIXME
It includes every odd-numbered isobaric layer from 1 to 137 (in hundreds of feet?) FIXME
USAGE
Parameters
- area
-
Name of geographical area covered
- time
-
The time for when the forecast is valid (every 3 hours starting from midnight UTC)
- type
-
grib1orgrib2, used only for filtering in available
Sample request URLs
https://api.met.no/weatherapi/isobaricgrib/1.0/grib1?area=europe&time=2024-12-31T00:00:00Zhttps://api.met.no/weatherapi/isobaricgrib/1.0/grib2?area=southern_norway&time=2024-12-31T00:00:00Z
Methods
- available
-
A list of available data may be retrieved using the 'available' action, using the url:
https://api.met.no/weatherapi/isobaricgrib/1.0/availableOptionally, you can specify the "type" and/or "area" parameters to filter the listing:
https://api.met.no/weatherapi/isobaricgrib/1.0/available.json?type=grib2 - updated
-
Returns a timestamp when the files were last updated
CHANGELOG
All changes are available as an RSS feed at the following URL: https://api.met.no/weatherapi/isobaricgrib/1.0/changelog
Version 1.0: : 2023-11-28
First version in beta