The BBR (Broad-Band Radiometer) instrument will be one of four instruments on ESA’s EarthCARE (Earth Clouds, Aerosols and Radiation Explorer) satellite. The mission’s aim is to study the role that clouds and aerosols play in reflecting incident solar radiation back into space and in trapping infrared radiation emitted from the Earth’s surface. These are currently the largest uncertainties in weather prediction models.
BBR’s role is to study the radiance at the top of the atmosphere, using three telescopes to look in three directions simultaneously. The instrument is being designed, assembled and tested at RAL Space, in collaboration with SEA in Bristol.