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Proceedings Paper

Airborne lidar measurements of ozone and aerosols in the summertime Arctic troposphere
Author(s): Edward V. Browell
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Paper Abstract

Ozone (O3) and aerosol distributions were remotely measured from an aircraft using a differential absorption lidar (DIAL) system as part of the 1988 NASA Global Tropospheric Experiment - Arctic Boundary Layer Experiment (ABLE-3A). The airborne DIAL system made simultaneous measurements of O3 and aerosols from the surface to above the tropopause. These measurements were made in a broad range of atmospheric conditions over the tundra, ice, and ocean regions near Barrow and Bethel, Alaska, during July and August 1988. The tropospheric composition over the Arctic was found to be strongly influenced by stratospheric intrusions. Regions of low aerosol scattering and enhanced O3 mixing ratios were usually correlated with descending air from the upper troposphere or lower stratosphere. Several cases of enhanced O3 were observed during ABLE-3A in conjunction with enhanced aerosol layers in the free troposphere resulting from biomass burning. As was found in the Amazon, the products of biomass burning can significantly alter O3 concentrations in the troposphere. This paper describes the NASA airborne DIAL system and discusses the large-scale variations of O3 and aerosols observed with the airborne DIAL system during ABLE-3A.

Paper Details

Date Published: 1 September 1991
PDF: 8 pages
Proc. SPIE 1491, Remote Sensing of Atmospheric Chemistry, (1 September 1991); doi: 10.1117/12.46641
Show Author Affiliations
Edward V. Browell, NASA/Langley Research Ctr. (United States)

Published in SPIE Proceedings Vol. 1491:
Remote Sensing of Atmospheric Chemistry
James L. McElroy; Robert J. McNeal, Editor(s)

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