Connecting surface emissions, convective uplifting, and long-range transport of carbon monoxide in the upper troposphere: New observations from the Aura Microwave Limb Sounder

被引：76

作者：

Jiang, Jonathan H. ^{[1
]}

Livesey, Nathaniel J.

Su, Hui

Neary, Lori

McConnell, John C.

Richards, Nigel A. D.

机构：

[1] CALTECH, Jet Prop Lab, Pasadena, CA USA

[2] York Univ, Dept Earth & Space Sci & Engn, Toronto, ON M3J 2R7, Canada

[3] Univ Leeds, Inst Atmospher Sci, Leeds, W Yorkshire, England

来源：

GEOPHYSICAL RESEARCH LETTERS | 2007年 / 34卷 / 18期

关键词：

D O I：

10.1029/2007GL030638

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

[1] Two years of observations of upper tropospheric ( UT) carbon monoxide ( CO) from the Aura Microwave Limb Sounder are analyzed; in combination with the CO surface emission climatology and data from the NCEP analyses. It is shown that spatial distribution, temporal variation and long-range transport of UT CO are closely related to the surface emissions, deep-convection and horizontal winds. Over the Asian monsoon region, surface emission of CO peaks in boreal spring due to high biomass burning in addition to anthropogenic emission. However, the UT CO peaks in summer when convection is strongest and surface emission of CO is dominated by anthropogenic source. The long-range transport of CO from Southeast Asia across the Pacific to North America, which occurs most frequently during boreal summer, is thus a clear imprint of Asian anthropogenic pollution influencing global air quality.

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