The Advanced Along Track Scanning Radiometer (AATSR) is a satellite instrument used for measuring various parameters related to Earth's atmosphere and surface. It is a multi-spectral radiometer that operates in the visible, infrared, and thermal infrared regions of the electromagnetic spectrum. AATSR provides valuable data for monitoring climate change, sea surface temperature, land surface temperature, vegetation health, and cloud properties.
AATSR works by scanning the Earth's surface in a cross-track direction from its satellite platform. It measures the radiation emitted and reflected by the Earth at different wavelengths to derive information about the targeted parameters. The instrument has multiple spectral channels that enable it to gather data over a wide range of frequencies, allowing for accurate measurements of temperature, surface conditions, and atmospheric properties.
One of the most important applications of AATSR is the accurate measurement of sea surface temperature (SST). By measuring the thermal radiation emitted by the ocean's surface, AATSR provides essential data for climate studies, weather forecasting, and the monitoring of marine ecosystems. Additionally, AATSR data is used for monitoring land surface temperature, which helps in understanding land-atmosphere interactions, assessing drought conditions, facilitating agriculture planning, and detecting urban heat islands.
In summary, AATSR is an advanced satellite instrument that measures radiation emitted and reflected by the Earth to derive information about several parameters like sea surface temperature, land surface temperature, and vegetation health. Its data is critical for climate studies, weather forecasting, and environmental monitoring.
