Measurements and Applications
Measurements of sea surface temperature, land surface temperature, cloud top temperature, cloud cover, aerosols, vegetation, atmospheric water vapour and liquid water content.
Full Name
Advanced Along-Track Scanning Radiometer
Status
No longer operational
Instrument Agencies
Maturity
Instrument Type
Imaging multi-spectral radiometers (vis/IR) 
and Multiple direction/polarisation radiometers
Geometry
Conical scanning
Instrument Technology
Multi-channel/direction/polarisation radiometer
Sampling
Imaging
Data Access
Open Access
Data Format
Resolution
IR ocean channels: 1 x 1 km, Visible land channels: 1 x 1 km
[Best Resolution: 1000m]
Accuracy
Sea surface temperature: <0.5 K over 0.5 x 0.5 deg (lat/long) area with 80% cloud cover Land surface temperature: 0.1 K (relative)
Waveband
VIS - NIR: 0.555 µm, 0.659 µm, 0.865 µm, SWIR: 1.6 µm, MWIR: 3.7 µm, TIR: 10.85 µm, 12 µm
| VIS (~0.40 µm - ~0.75 µm) |
| NIR (~0.75 µm - ~1.3 µm) |
| SWIR (~1.3 µm - ~3.0 µm) |
| MWIR (~3.0 µm - ~6.0 µm) |
| TIR (~6.0 µm - ~15.0 µm) |
Envisat - Environmental Satellite (2002 - 2012) |