Observed Perturbations of the Earth's Radiation Budget: A Response to the El Chichón Stratospheric Aerosol Layer?

摘要: Abstract The Earth Radiation Budget experiment, launched aboard the Nimbus-7 polar-orbiting spacecraft in late 1978, has now taken over seven years of measurements. dataset, which is global coverage, consists individual components Earth's radiation budget, including longwave emission, not radiation, and both total new-infrared albedos. Starting some six months after 1982 eruption El Chichon volcano, substantial long-lived positive shortwave irradiance anomalies were observed by experiment northern southern polar regions. Analysis morphology this phenomena indicates that cause stratospheric aerosol layer formed from cloud volcanic effluents. There was little change emitted At north pole largest anomaly near-infrared, but at south near UV-visible larger. Assuming an exponential decay, time constant for polar, near-inf...