Minimize ATSR-1

The ATSR-1 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-1 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. FAQ on ATSR images is available here

More information on ATSR-1 is also available from the ATSR Project webpage maintained by RAL, and the ATSR Sensors webpage


This ATSR-1 image from RAL shows a warm core ring from the Kuro Shio current just east of Japan's main Honshu Island. Note the intricate patterns described in the sea-surface temperature. This is an 11 micron day-time image acquired on 28th August 1991; the area covered is 512 x 512 square km..