title: Superpressure balloon flights in the tropical stratosphere.
abstract: Seven balloons were launched successfully from Ascension Island in January 1969. The balloons, flown at altitudes of 20 and 24 kilometers, will make possible a detailed analysis of the stratospheric circulation near the equator and will hopefully lead to an understanding of the quasi-biennial stratospheric oscillation in the tropics.
authors.forename: V E
authors.initials: VE
authors.lastname: Lally
authors.forename: A P
authors.initials: AP
authors.lastname: Schumann
authors.forename: R J
authors.initials: RJ
authors.lastname: Reed