Effects of the 2004 El Nino on tropospheric ozone and water vapor

被引：26

作者：

Chandra, S.

Ziemke, J. R.

Schoeberl, M. R.

Froidevaux, L.

Read, W. G.

Levelt, P. F.

Bhartia, P. K.

机构：

[1] Univ Maryland Baltimore Cty, Catonsville, MD 21228 USA

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

[3] KNMI, NL-3730 AE De Bilt, Netherlands

[4] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2007年 / 34卷 / 06期

关键词：

D O I：

10.1029/2006GL028779

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The global effects of the 2004 El Nino on tropospheric ozone and H(2)O based on Aura OMI and MLS measurements are analyzed. Although it was a weak El Nino from a historical perspective, it produced significant changes in these parameters in tropical latitudes. Tropospheric ozone increased by 10 - 20% over most of the western Pacific region and decreased by about the same amount over the eastern Pacific region. H(2)O in the upper troposphere showed similar changes but with opposite sign. These zonal changes in tropospheric ozone and H(2)O are caused by the eastward shift in the Walker circulation in the tropical pacific region during El Nino. During the 2004 El Nino, biomass burning did not have a significant effect on the ozone budget in the troposphere, unlike the 1997 El Nino. Zonally averaged tropospheric column ozone did not change significantly either globally or over tropical latitudes.

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页数：5

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