Balloon borne Antarctic frost point measurements and their impact on polar stratospheric cloud theories

Balloon-borne frost point measurements were performed over Antarctica during September-October 1987 as part of the NOZE II effort at McMurdo. The results show water mixing ratios on the order of 2 ppmv in the 20 km region, suggesting that models of the springtime Antarctic stratosphere should be bas...

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Bibliographic Details
Main Authors: Rosen, James M., Hofmann, D. J., Carpenter, J. R., Harder, J. W., Oltsmans, S. J.
Format: Other/Unknown Material
Language:unknown
Published: 1988
Subjects:
46
Antarctic
Antarc*
Antarctica
Online Access:http://ntrs.nasa.gov/search.jsp?R=19880060577
Description
Summary:Balloon-borne frost point measurements were performed over Antarctica during September-October 1987 as part of the NOZE II effort at McMurdo. The results show water mixing ratios on the order of 2 ppmv in the 20 km region, suggesting that models of the springtime Antarctic stratosphere should be based on approximately 2 ppmv water vapor. Evidence indicating that some PSCs form at temperatures higher than the frost point in the 15 to 20 km region is discussed. This supports the binary HNO3-H2O theory of PSC composition.

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