Stratosphere-troposphere exchange at the subtropical jet: contribution to the tropospheric ozone budget at midlatitudes

被引：58
作者：
Langford, AO [1 ]
机构：
[1] NOAA, Aeron Lab, Boulder, CO 80303 USA
来源：
GEOPHYSICAL RESEARCH LETTERS | 1999年 / 26卷 / 16期
关键词：
D O I：
10.1029/1999GL900556
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
The interannual variability of the springtime maximum in free tropospheric ozone above Colorado is examined using 5-1/2 years (1993-1998) of Differential Absorption Lidar (DIAL) data. Year-to-year differences of up to 20% in the monthly mean mixing ratios are shown to be correlated with changes in the 200 hPa wind speed over the eastern Pacific that are associated with the El Nino/Southern Oscillation (ENSO). This correlation is attributed to variations in the intensity of stratosphere-troposphere exchange (STE) associated with the mean transverse circulation at the subtropical jet exit over the eastern Pacific.
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收藏
页码：2449 / 2452
页数：4
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