Comparative Analysis of CO2 Background Concentration Between China Mainland and Neighboring Countries and Regions

Abstract

Abstract:

Using the data of World Data Center for Greenhouse Gases (WDCGG), the concentrations of the main greenhouse gas CO2 in China and its surrounding countries and regions are preliminarily analyzed. The results show that: the CO2 concentrations in China Mainland are close to Hong Kong in China, Japan, Russia, and South Korea; they all have the same trends. Higher CO2 concentrations are found in Hong Kong and South Korea, while lower CO2 concentrations in Japan, Russia, Waliguanin China. The results of many years observation show that the average concentration of CO2 in the northern hemisphere is increasing year by year, and the average annual variation of CO2 concentration is inversely proportional to the altitude of the observation station. The concentration and variation trend of CO2 in Waliguan global station is consistent with that in the Mauna Loa, Barrow, Trinidad Head global station. But the annual variation in Waliguan is slightly higher than in Mauna Loa and lower than in Barrow. The changes of CO2 concentration in Shangdianzi regional background station in China are more violent than in Waliguan, Mauna Loa, Barrow, Trinidad Head station, which shows that Shangdianzi station is affected by the strong regional emissions.

Key words: greenhouse gases, CO2, background concentration comparative analysis

CLC Number:

P413

JIA Xiao-Fang, ZHANG Xiao-Chun, ZHAO Ya-Na, WANG Mian, JIN Jun-Li. Comparative Analysis of CO2 Background Concentration Between China Mainland and Neighboring Countries and Regions[J]. Journal of Atmospheric and Environmental Optics, 2017, 12(2): 120-127.

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