气候变化领域集成服务门户(CCPortal): Two Aspects of Decadal ENSO Variability Modulating the Long-Term Global Carbon Cycle

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DOI	10.1029/2019GL086390
	Two Aspects of Decadal ENSO Variability Modulating the Long-Term Global Carbon Cycle
	Park S.-W.; Kim J.-S.; Kug J.-S.; Stuecker M.F.; Kim I.-W.; Williams M.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:8
英文摘要	The El Niño–Southern Oscillation (ENSO) drives variations in terrestrial carbon fluxes by affecting the terrestrial ecosystem via atmospheric teleconnections and thus plays an important role in interannual variability of the global carbon cycle. However, we lack such knowledge on decadal time scales, that is, how the carbon cycle can be affected by decadal variations of ENSO characteristics. Here we examine how, and by how much, decadal ENSO variability affects decadal variability of the global carbon cycle by analyzing a 1,801-year preindustrial control simulation. We identify two different aspects, together explaining ~36% of the decadal variations in the global carbon cycle. First, climate variations induced by decadal ENSO-like variability regulate terrestrial carbon flux and hence atmospheric CO2 on decadal time scales. Second, decadal changes in the asymmetrical response of the terrestrial ecosystem, resulting from decadal modulation of ENSO amplitude and asymmetry, rectify the background mean state, thereby generating decadal variability of land carbon fluxes. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Atmospheric pressure; Carbon; Ecosystems; Asymmetrical response; Atmospheric teleconnections; Control simulation; Decadal variability; Global carbon cycle; Interannual variability; Southern oscillation; Terrestrial ecosystems; Climatology; annual variation; atmospheric chemistry; carbon flux; El Nino-Southern Oscillation; global perspective; teleconnection; terrestrial ecosystem
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170434
作者单位	Division of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, South Korea; School of GeoSciences, University of Edinburgh, Edinburgh, United Kingdom; National Centre for Earth Observation, University of Edinburgh, Edinburgh, United Kingdom; Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland; Department of Oceanography and International Pacific Research Center, School of Ocean and Earth Science and Technology, University of Hawaiʻi at Mānoa, Honolulu, HI, United States; Center for Climate Physics, Institute for Basic Science, South Korea; Pusan National University, Busan, South Korea
推荐引用方式 GB/T 7714	Park S.-W.,Kim J.-S.,Kug J.-S.,et al. Two Aspects of Decadal ENSO Variability Modulating the Long-Term Global Carbon Cycle[J],2020,47(8).
APA	Park S.-W.,Kim J.-S.,Kug J.-S.,Stuecker M.F.,Kim I.-W.,&Williams M..(2020).Two Aspects of Decadal ENSO Variability Modulating the Long-Term Global Carbon Cycle.Geophysical Research Letters,47(8).
MLA	Park S.-W.,et al."Two Aspects of Decadal ENSO Variability Modulating the Long-Term Global Carbon Cycle".Geophysical Research Letters 47.8(2020).