31 May 2022
28 April 2020
AVHRR is an across track scanner that senses the Earth’s outgoing radiation from horizon to horizon in six channels (three solar channels in the visible-near infrared region and three thermal infrared channels), with a spatial resolution of 1km at nadir.
AVHRR has applications within:
- Operational meteorology — measuring cloud properties (height, temperature, phase);
- Land analysis — supplying data for calculating vegetation indices, soil moisture, snow cover, and land surface temperature (skin);
- Ocean analysis — supplying data for deriving sea surface temperature and sea ice concentration, and aerosols and fire detection.
AVHRR supports the IASI mission with sounding geolocation; cloud characterisation within the IASI FOV, and support to scene inhomogeneity quantification for the correction of the IASI spectral response.
EARS-AVHRR service specification
Satellites supported
N19, Metop-B and Metop-C, as shown on the tables on the Regional Data Service/EARS webpage.
Product processing
None.
Product segmentation
Segments each containing one minute of observations. Duplicate segments removed before dissemination.
Products via EUMETCast Europe
- For NOAA KLM and NN’: HRPT data, expanded to 16 bits, big endian, bzip2 compressed.
- For Metop: EPS level 0, bzip2 compressed.
Timeliness via EUMETCast
30 minutes.
Products via RMDCN/GTS
None.
Archived in EUMETSAT
Only NOAA AVHRR data.
Further information
For more information on EARS-AVHRR see TD 14 - EUMETSAT Advanced Retransmission Service Technical Description
Full details on products can be found in the Product Navigator:
AVHRR Regional Data Service – Multimission
