 These missions include broadband measurements from the Earth Radiation Balance (ERB) instrument on the Nimbus-6 and Nimbus-7 satellites; Earth Radiation Budget Experiment (ERBE) scanner and the ERBE non scanner on NOAA-9, NOAA-10 and NASA Earth Radiation Budget Satellite (ERBS); The Clouds and the Earth's Radiant Energy System (CERES) instrument aboard NASA's Aqua and Terra satellites; and Geostationary Earth Radiation Budget instrument (GERB) instrument on the Meteosat Second Generation (MSG) satellite.Down-welling long-wave radiation at the surface is mainly measured by Pyrgeometer.A most notable ground-based network for monitoring surface long-wave radiation is Baseline Surface Radiation Network (BSRN), which provides crucial well-calibrated measurements for studying global dimming and brightening.