我国中部地区大气CO<sub>2</sub>柱浓度时空分布

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Abstract

Based on retrieved CO₂ products of GOSAT and AIRS, the spatial and temporal distribution characteristics of CO₂ in central areas of China were analyzed. The annual CO₂ retrieved from GOSAT range from 389.36×10^-6 in 2010 to 396.52×10^-6 in 2013, with a growth rate of 2.39×10^-6per year. The annual mean in central areas of China were slightly lower than Yangze River Delta (YZD), but higher than Jing-Jin-Ji area (JJJ) and Northeastern China region (NCR). The CO₂ in Hunan and Jiangxi province was with the highest values, and it was with the lowest values over north areas of Shanxi province. The annual CO₂ retrieved from AIRS varied from 390.48×10^-6 in 2010 to 396.50×10^-6 in 2013, with a growth rate of 2.01×10^-6 per year, and the annual mean CO₂ were similar with YZD, while slightly lower than JJJ and NCR. Due to small impact from ground sources and sinks, the CO₂ seasonal amplitude retrieved from AIRS was smaller than that of GOSAT. On the contrary, high-value regions of CO₂ from AIRS mainly distributed over Henan and Shanxi, and the low-value regions presented in Hunan and Jiangxi, which was likely due to that GOSAT and AIRS products represented CO₂ variations over different height.

Key words： CO₂ column concentration central China spatial and temporal variations GOSAT AIRS

Received: 18 January 2018

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	XIA Ling-jun
	LIU Li-xin
	LI Bo-zhen
	ZHOU Ling-xi

Cite this article:

XIA Ling-jun,LIU Li-xin,LI Bo-zhen等. Spatial and temporal distribution characteristics of atmospheric CO₂ in central China[J]. CHINA ENVIRONMENTAL SCIENCECE, 2018, 38(8): 2811-2819.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2018/V38/I8/2811

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