Minimize ATSR-2

The ATSR-2 menu to your right provides information concerning the SPPA activities for this instrument. 


A brief description of the instrument, its operations and main mission highlights is available in the sections below:

  Sensor Description   |   Mission Operations Overview    

Minimize Sensor Description

The Along Track Scanning Radiometer consists of an Infra-Red Radiometer (IRR) and a Microwave Sounder (MWS). On board ERS-1 the IRR is a four-channel infra-red radiometer used for measuring sea-surface temperatures (SST) and cloud-top temperatures, whereas on board ERS-2 the IRR is equipped with additional visible channels for vegetation monitoring.

To help users familiarise themselves with ATSR-2 and start using data products, the ATSR-1/-2 User Guide is available as a PDF download. This should be read in conjunction with the AATSR Handbook and the document on Envisat-style products for ATSR-1 and ATSR-2 data. An FAQ on ATSR images is available here.

More information on ATSR-2 is also available from the ATSR Project webpage maintained by RAL, and the ATSR Sensors webpage.



This ATSR-2 false colour image from RAL shows the Gulf of California in daytime. The hottest areas (grey) are mostly land. The cooler SSTs are shown using purple (coolest) to red (warmest) and the range is approximately 280 to 300 K. The data is from the 11 micron nadir channel.