Enhanced upper tropical tropospheric COS: Impact on the stratospheric aerosol layer

被引：83

作者：

Notholt, J ^{[1
]}

Kuang, ZM

Rinsland, CP

Toon, GC

Rex, M

Jones, N

Albrecht, T

Deckelmann, H

Krieg, J

Weinzierl, C

Bingemer, H

Weller, R

Schrems, O

机构：

[1] Univ Bremen, D-28334 Bremen, Germany

[2] CALTECH, Pasadena, CA 91125 USA

[3] NASA, Langley Res Ctr, Hampton, VA 23681 USA

[4] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[5] Alfred Wegener Inst Polar & Marine Res, D-14473 Potsdam, Germany

[6] Univ Wollongong, Wollongong, NSW 2522, Australia

[7] Goethe Univ Frankfurt, D-60325 Frankfurt, Germany

[8] Alfred Wegener Inst Polar & Marine Res, D-27568 Bremerhaven, Germany

来源：

SCIENCE | 2003年 / 300卷 / 5617期

关键词：

D O I：

10.1126/science.1080320

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Carbonyl sulfide (COS) is considered to be a major source of the stratospheric sulfate aerosol during periods of volcanic quiescence. We measured COS at the tropical tropopause and find mixing ratios to be 20 to 50% larger than are assumed in models. The enhanced COS levels are correlated with high concentrations of biomass-burning pollutants like carbon monoxide ( CO) and hydrogen cyanide (HCN). The analysis of backward trajectories and global maps of. re statistics suggest that biomass-burning emissions transported upward by deep convection are the source of the enhanced COS in the upper tropical troposphere.

引用

页码：307 / 310

页数：4

共 33 条

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