Spatial and Temporal Variations of Lower Tropospheric Methane During 2010-2011 in China

CORC > 地理科学与资源研究所 > 中国科学院地理科学与资源研究所 > 研究生部

	Spatial and Temporal Variations of Lower Tropospheric Methane During 2010-2011 in China
	Xu, YuYue(徐于月) ; Wang, JL ; Sun, JL ; Xu, Y ; Harris, W
刊名	IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
	2012
卷号	5 期号:5 页码:1464-1473
关键词	AIRS China greenhouse gas in-suit sensing lower troposphere methane
通讯作者	Wang, JL
英文摘要	Estimates of methane (CH) concentrations in the lower troposphere over the land surfaces of the world, and in more detail for China, were derived from data from the Atmospheric Infrared Sounder (AIRS). Derivation of CH4 estimates is described, and these were validated with reference to CH4 concentrations analyzed for air samples in three regions of China and the observations from three global baseline sites. The values of sample points and three global baseline sites were extracted from remotely sensed images. The correlation coefficients between remotely sensed geographical point estimates of CH4 and observations were equal to 0.779 and 0.763. Seasonal and monthly variation of CH concentrations for the 2010-2011 year and the spatial variation of these concentrations for the troposphere over China derived from remotely sensed data were mapped and interpreted with reference to possible sources of CH4 emission. Methane concentrations were about 15 ppb higher in winter than summer. The changes in concentrations were about 50 ppb in Inner Mongolian Plateau between September and October 2010, northwest China between February and March 2011. Variations of CH4 concentration are considered with reference to mixing of atmospheric gases by oceanic influences and to sources of CH4 emissions including vegetation cover particularly wetland, crop, and pastoral land use.
收录类别	SCI
资助信息	Public Welfare Special Program, Ministry of Environmental Protection of the People's Republic of China 200909018 201109075；Science and Technology Basic Research Program of China 2011FY110400
公开日期	2012-12-25
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/27811]
专题	地理科学与资源研究所_研究生部
推荐引用方式 GB/T 7714	Xu, YuYue,Wang, JL,Sun, JL,et al. Spatial and Temporal Variations of Lower Tropospheric Methane During 2010-2011 in China[J]. IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,2012,5(5):1464-1473.
APA	Xu, YuYue,Wang, JL,Sun, JL,Xu, Y,&Harris, W.(2012).Spatial and Temporal Variations of Lower Tropospheric Methane During 2010-2011 in China.IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,5(5),1464-1473.
MLA	Xu, YuYue,et al."Spatial and Temporal Variations of Lower Tropospheric Methane During 2010-2011 in China".IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING 5.5(2012):1464-1473.