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Article: Interannual Changes of Stratospheric Water Vapor and Correlations with Tropical Tropopause Temperatures
- Article from:
- Journal of the Atmospheric Sciences
- Article date:
- September 1, 2004
- Author:
CopyrightCopyright American Meteorological Society Sep 1, 2004. Provided by ProQuest LLC. (Hide copyright information)
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ABSTRACT
Interannual variations of stratospheric water vapor over 1992-2003 are studied using Halogen Occultation Experiment (HALOE) satellite measurements. Interannual anomalies in water vapor with an approximate 2-yr periodicity are evident near the tropical tropopause, and these propagate vertically and latitudinally with the mean stratospheric transport circulation (in a manner analogous to the seasonal "tape recorder"). Unusually low water vapor anomalies are observed in the lower stratosphere for 2001-03. These interannual anomalies are also observed in Arctic lower-stratospheric water vapor measurements by the Polar Ozone and Aerosol Measurement (POAM) satellite instrument during ...