Abstract: The vertical distribution of stratospheric particles with an average radius of 0.15 micron is presented in the form of five vertical profiles. These show a broad maximum in numerical concentration between 15 and 23 km, and ...

Abstract: An aircraft-borne impactor-filter system for the collection of tropospheric aerosols of natural and fission-product origin is described. The system has been used in studies of the size distribution of atmospheric particles ...

Abstract: A first report is presented on a comprehensive study of stratospheric aerosols up to 30 km altitude. Information was obtained on the vertical profiles as a function of particle size, on the size distribution of these ...