On the control of stratospheric humidity

作者：Steven C. Sherwood, Andrew Emory Dessler · 发表于：Geophysical Research Letters · 年份：2000 · DOI：10.1029/2000gl011438 · 被引用次数：246 · 研究领域：Atmospheric Ozone and Climate、Solar and Space Plasma Dynamics、Atmospheric chemistry and aerosols

We present a hypothesis on the dehydration and transfer of air from the tropical troposphere into the stratosphere. The hypothesis is based on the existence of a thick “tropopause layer,” in which vertical and horizontal mixing are both significant. Air is rapidly dehydrated upon entering this layer in vigorous convective overshoots, then slowly ascends through the layer before fully entering the stratosphere. Dehydration and genuine entry into the stratosphere are separate processes that happen on much different time scales.