Isobaricgrib

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

70, 100, 150, 200, 250, 300, 400, 500, 700, 850

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

grib1 or grib2, used only for filtering in available

Sample request URLs

  https://api.met.no/weatherapi/isobaricgrib/1.0/grib1?area=europe&time=2024-07-16T00:00:00Z
  https://api.met.no/weatherapi/isobaricgrib/1.0/grib2?area=southern_norway&time=2024-07-16T00:00:00Z

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/available

Optionally, 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

 

Changelog