The plans for an atmospheric aerosol field measurement experiment are described. The South Atlantic Backscatter Lidar Experiment (SABLE) is an important step in determining the feasibility of obtaining space-based lidar measurements for the determination of atmospheric winds, and the spatial and temporal variation of aerosol backscatter. Two field campaigns operating from Ascension Island (a British colony of St. Helena) have been completed. The first field campaign obtained lidar backscatter measurements utilizing an airborne platform during a 3-week period from mid-October through mid-November 1988. The second SABLE program was expanded to include measurements utilizing airborne particle-measurement probes, ground-based lidars, radiosondes, and supporting meteorological equipment. This program was conducted during a 4-week period from mid-June through mid-July 1989. This is the first time that such a comprehensive, aerosol-measurement program has been undertaken in the Southern Hemisphere. SABLE-type measurements are not only pertinent to the development of space-based sensors, but also have direct utility in the study of aerosols and their effect on climate.

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Footnotes

* Geophysics Laboratory (AFSC), Hanscom AFB, MA 01731

Royal Signals and Radar Establishment, St. Andres Rd., Gt. Malvern, Worcester, WR143PS U.K.