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.
Special features of the AATSR instrument include its use of a conical scan to give a dual-view of the Earth's surface, on-board calibration targets and use of mechanical coolers to maintain the thermal environment necessary for optimal operation of the infrared detectors.
Imaging multi-spectral radiometers (vis/IR) & Multipledirection/polarisation radiometers
Sea surface temperature: <0.5K over 0.5 deg x 0.5 deg (lat/long)area with 80% cloud cover Land surface temperature: 0.1K (relative)
IR ocean channels: 1km x 1km, Visible land channels: 1km x 1km
VIS - NIR: 0.555, 0.659, 0.865 micrometers, SWIR: 1.6 micrometers,MWIR: 3.7 micrometers, TIR: 10.85, 12 micrometers
Land ( Vegetation ), Ocean and Coast ( Sea Surface Temperature ), Atmosphere ( Clouds/Precipitation )
Latest Mission Operations News
10 November 2017
Following the successful LPVE 2014, the European Space Agency (ESA) is inviting scientists and Cal/Val experts to present the latest results from their on-going research at the 2018 Workshop on Land Product Validation and Evolution (LPVE 2018).
The abstract submission deadline has been extended to 30 November 2017.
Related Data Types
Related (Key) Documentation