Advanced Along-Track Scanning Radiometer (AATSR) is one of the Announcement of Opportunity (AO) instruments on board the European Space Agency (ESA) satellite ENVISAT. It is the most recent in a series of instruments designed primarily to measure Sea Surface Temperature (SST), following on from ATSR-1 and ATSR-2 on board ERS-1 and ERS-2. AATSR data have a resolution of 1 km at nadir, and are derived from measurements of reflected and emitted radiation taken at the following wavelengths: 0.55 µm, 0.66 µm, 0.87 µm, 1.6 µm, 3.7 µm, 11 µm and 12 µm.
To help users familiarise themselves with AATSR and start using AATSR data products, the AATSR Product Handbook is available either online or as a PDF download. Also available are the Frequently Asked Questions and a set of technical notes providing updated information to accompany the handbook.
For further reading, the ATSR Scientific Document Listing provides links to scientific papers that involve (A)ATSR data.