Abstract: Balloonborne aerosol particle counter measurements are used in studying the stratospheric sulfate layer at Laramie, Wyoming, during 1978 and 1979, a 2-year volcanically quiescent period in which the layer appears to have ...

Abstract: A condensation nuclei (CN) counter has been developed for balloonborne use at ambient pressures in the troposphere and stratosphere. The instrument employs a thermal gradient diffusion cloud chamber to produce particle ...

Abstract: Condensation nuclei measurements using a low supersaturation (?10%) thermal gradient diffusion cloud chamber (TGDCC) and a high supersaturation (?200%) expansion type instrument were compared on a series of three balloon ...

Abstract: Global surveys of stratospheric and upper tropospheric aerosols have been made using balloon-borne photoelectric particle counters. The natural variability observed at each flight station was small enough so that typical ...

Abstract: Mie single scattering, absorption, and total extinction calculations for various size distribution and composition models of the stratospheric aerosol are presented. These models are derived from global in-situ measurements ...

Abstract: Seasonal tropopause height variations are utilized in studying the global stratospheric aerosol burden and possible ozone asymmetries and long-term variations. It is concluded that an intimate relationship between tropopause ...

Abstract: This paper deals with the development of a one-dimensional steady-state stratospheric aerosol model and the subsequent perturbations caused by including the expected space shuttle particulate effluents in the model. Two ...

Abstract: The results of over 70 balloon soundings, by the University of Wyoming's Atmospheric Physics Group mostly during 1972 and 1973 from a number of stations, are being utilized in a study of the temporal and spatial distribution ...

Abstract: Balloon-borne measurements of the stratospheric sulfate aerosol from late 1971 to mid-1974, a quiescent period in terms of large volcanic eruptions at stations ranging from 85°N to 90°S, are utilized in a study of the ...

Abstract: A large satellite validation experiment was conducted at Poker Flat, Alaska, 16?19 July 1979. Instruments included the SAM II and SAGE satellite sensors, dustsondes impactors, a fitter collector and an airborne lidar. We ...