Influence of El Nino on atmospheric CO2 over the tropical Pacific Ocean: Findings from NASA's OCO-2 mission

被引：110

作者：

Chatterjee, A. ^{[1
,2
]}

Gierach, M. M. ^{[3
]}

Sutton, A. J. ^{[4
,5
]}

Feely, R. A. ^{[4
]}

Crisp, D. ^{[3
]}

Eldering, A. ^{[3
]}

Gunson, M. R. ^{[3
]}

O'Dell, C. W. ^{[6
]}

Stephens, B. B. ^{[7
]}

Schimel, D. S. ^{[3
]}

机构：

[1] Univ Space Res Assoc, Columbia, MD 21046 USA

[2] NASA, Global Modeling & Assimilat Off, Greenbelt, MD 20771 USA

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

[4] NOAA, Pacific Marine Environm Lab, 7600 Sand Point Way Ne, Seattle, WA 98115 USA

[5] Univ Washington, Joint Inst Study Atmosphere & Ocean, Seattle, WA 98195 USA

[6] Colorado State Univ, Ft Collins, CO 80523 USA

[7] Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA

来源：

SCIENCE | 2017年 / 358卷 / 6360期

关键词：

EASTERN EQUATORIAL PACIFIC; CARBON-DIOXIDE; INTERANNUAL VARIABILITY; SOUTHERN-OSCILLATION; RETRIEVAL ALGORITHM; NATURAL VARIABILITY; DECADAL VARIATIONS; FLUX VARIABILITY; CLIMATE-CHANGE; FIRE ACTIVITY;

D O I：

10.1126/science.aam5776

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：

Spaceborne observations of carbon dioxide (CO2) from the Orbiting Carbon Observatory-2 are used to characterize the response of tropical atmospheric CO2 concentrations to the strong El Nino event of 2015-2016. Although correlations between the growth rate of atmospheric CO2 concentrations and the El Nino-Southern Oscillation are well known, the magnitude of the correlation and the timing of the responses of oceanic and terrestrial carbon cycle remain poorly constrained in space and time. We used space-based CO2 observations to confirm that the tropical Pacific Ocean does play an early and important role in modulating the changes in atmospheric CO2 concentrations during El Nino events-a phenomenon inferred but not previously observed because of insufficient high-density, broad-scale CO2 observations over the tropics.

引用

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