The Advanced Very High Resolution Radiometer (AVHRR) multi-purpose imaging instrument is used for global monitoring of cloud cover, sea surface temperature, ice, snow and vegetation cover characteristics.
20 November 2020
05 May 2020
AVHRR provides global imagery twice a day, at 1 km resolution (at nadir), in the visible and infrared bands of the electromagnetic spectrum.
What is AVHRR?
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.
Other EPS instruments
IASI is the main payload instrument for the purpose of supporting Numerical Weather Prediction.
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Microwave Humidity Sounder (MHS)
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AVHRR case studies
A platform-independent modular software tool for assessing and monitoring the geolocation accuracy of medium to high resolution optical sensors.
Test data for EPS-SG instruments METimage and 3MI
Studying the optical missions METimage and 3MI and the generation of appropriate test data.