气候变化领域集成服务门户(CCPortal): Hiatus of wetland methane emissions associated with recent La Niña episodes in the Asian monsoon region

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DOI	10.1007/s00382-020-05219-0
	Hiatus of wetland methane emissions associated with recent La Niña episodes in the Asian monsoon region
	Zhang X.; Xu X.; Jia G.; Poulter B.; Zhang Z.
发表日期	2020
ISSN	0930-7575
起始页码	4095
结束页码	4107
卷号	54
英文摘要	The variability of methane emissions from wetlands in the tropics and northern temperate regions can explain more than 70% of the interannual variation in global wetland methane emissions, which are largely driven by climate variability. We use climate reanalysis, remote sensing wetland area dataset and simulations from 11 land models contributing to Global Methane Budget to investigate the interannual variation and anomalies of wetland methane emissions in the Asian Monsoon region. Methane emissions in this region steadily increased over 2000–2012. However, abnormally low methane emissions were found in equatorial fully humid (Af), warm temperate winter dry (Cw), and warm temperate fully humid (Cf) Asian Monsoon climate sub-regions in 2008, 2009 and 2011, respectively. These spatially-shifting low emissions occurred simultaneously with observed wetland area shrinkage due to abnormally low precipitation. Interannual variability of wetland methane emissions in Asian Monsoon region are primarily driven by South Asian Monsoon system. However, the abnormally low emissions are related to strong La Niña events, and its accompanying effect of weakened East Asian Monsoon system and eastward Western Pacific subtropical high, which drives the shifting pattern of rainfall, and thus the spatial pattern of methane emission anomalies. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Asian monsoon; ENSO events; Methane; Precipitation; Wetlands
语种	英语
scopus关键词	annual variation; climate change; climate variation; emission inventory; hiatus; La Nina; methane; monsoon; temperate environment; tropical region; wetland; Pacific Ocean; Pacific Ocean (West); South Asia
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145492
作者单位	School of Atmospheric Science, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Key Laboratory of Regional Climate-Environment for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States; Department of Geographical Sciences, University of Maryland, College Park, MD 20740, United States; Dynamic Macroecology, Swiss Federal Research Institute WSL, Birmensdorf, 8903, Switzerland
推荐引用方式 GB/T 7714	Zhang X.,Xu X.,Jia G.,et al. Hiatus of wetland methane emissions associated with recent La Niña episodes in the Asian monsoon region[J],2020,54.
APA	Zhang X.,Xu X.,Jia G.,Poulter B.,&Zhang Z..(2020).Hiatus of wetland methane emissions associated with recent La Niña episodes in the Asian monsoon region.Climate Dynamics,54.
MLA	Zhang X.,et al."Hiatus of wetland methane emissions associated with recent La Niña episodes in the Asian monsoon region".Climate Dynamics 54(2020).