The response of tropical tropospheric ozone to ENSO

被引：85

作者：

Oman, L. D. ^{[1
]}

Ziemke, J. R. ^{[1
,3
]}

Douglass, A. R. ^{[1
]}

Waugh, D. W. ^{[2
]}

Lang, C. ^{[2
]}

Rodriguez, J. M. ^{[1
]}

Nielsen, J. E. ^{[1
,4
]}

机构：

[1] NASA, Atmospher Chem & Dynam Branch, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[2] Johns Hopkins Univ, Dept Earth & Planetary Sci, Baltimore, MD 21218 USA

[3] Univ Maryland Baltimore Cty, GEST, Baltimore, MD 21228 USA

[4] Sci Syst & Applicat Inc, Lanham, MD USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2011年 / 38卷

关键词：

NINO SOUTHERN-OSCILLATION; 1997-1998; EL-NINO; CHEMISTRY; MODEL; PHOTOCHEMISTRY; STRATOSPHERE; MIDLATITUDES; TEMPERATURE; TRANSPORT; EXCHANGE;

D O I：

10.1029/2011GL047865

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We have successfully reproduced the Ozone ENSO Index (OEI) in the Goddard Earth Observing System (GEOS) chemistry-climate model (CCM) forced by observed sea surface temperatures over a 25-year period. The vertical ozone response to ENSO is consistent with changes in the Walker circulation. We derive the sensitivity of simulated ozone to ENSO variations using linear regression analysis. The western Pacific and Indian Ocean region shows similar positive ozone sensitivities from the surface to the upper troposphere, in response to positive anomalies in the Nino 3.4 Index. The eastern and central Pacific region shows negative sensitivities with the largest sensitivity in the upper troposphere. This vertical response compares well with that derived from SHADOZ ozonesondes in each region. The OEI reveals a response of tropospheric ozone to circulation change that is nearly independent of changes in emissions and thus it is potentially useful in chemistry-climate model evaluation. Citation: Oman, L. D., J. R. Ziemke, A. R. Douglass, D. W. Waugh, C. Lang, J. M. Rodriguez, and J. E. Nielsen (2011), The response of tropical tropospheric ozone to ENSO, Geophys. Res. Lett., 38, L13706, doi:10.1029/2011GL047865.

引用

页数：6

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