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Earth Science > Atmosphere > Atmospheric radiation > Reflectance Earth Science > Atmosphere > Aerosols Earth Science > Atmosphere > Aerosols > Aerosol Optical Depth/Thickness > UV Aerosol Index Orthoimagery Land cover climatologyMeteorologyAtmosphere oceans imageryBaseMapsEarthCover
The TROPOMI instrument onboard Sentinel-5 Precursor is a nadir-viewing, imaging spectrometer covering wavelength bands between the ultraviolet and the shortwave infrared. The instrument uses passive remote sensing techniques to attain its objective by measuring, at the Top Of Atmosphere (TOA), the solar radiation reflected by and radiated from Earth. TROPOMI aerosol index is referred to as the Ultraviolet Aerosol Index (UVAI). The relatively simple calculation of the Aerosol Index is based on wavelength dependent changes in Rayleigh scattering in the UV spectral range where ozone absorption is very small. UVAI can also be calculated in the presence of clouds so that daily, global coverage is possible. This is ideal for tracking the evolution of episodic aerosol plumes from dust outbreaks, volcanic ash, and biomass burning.
S5P-TR-L2-AER-AI