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Variation characteristics of carbon monoxide and ozone over the course of the 2014 Chinese National Arctic Research Expedition

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【作者】 LI BokunBIAN LingenZHENG XiangdongDING MinghuXIE Zhouqing

【Author】 LI Bokun;BIAN Lingen;ZHENG Xiangdong;DING Minghu;XIE Zhouqing;Institute of Polar Environment, University of Science and Technology of China;Chinese Academy of Meteorological Sciences;

【机构】 Institute of Polar Environment, University of Science and Technology of ChinaChinese Academy of Meteorological Sciences

【摘要】 The concentrations of carbon monoxide and ozone in the marine boundary layer were measured during the 6th Chinese National Arctic Research Expedition(from July to September, 2014). Carbon monoxide concentration ranged between 47.00 and 528.52 ppbv with an average of 103.59 ± 40.37 ppbv. A slight decrease with increasing latitude was observed, except for the extremely high values over the East China Sea which may be attributed to anthropogenic emissions. Ozone concentration ranged between 3.27 and 77.82 ppbv with an average of 29.46±10.48 ppbv. Ozone concentration decreased sharply with increasing latitude outside the Arctic Ocean(during both the northward and the southward course), while no significant variation was observed over the Arctic Ocean. The positive correlation between carbon monoxide and ozone in most sections suggests that the ozone in the marine boundary layer mainly originated from photochemical reactions involving carbon monoxide.

【基金】 supported by the Chinese Polar Environment Comprehensive Investigation & Assessment Programs (Grant no. CHINARE 2011-2015);the National Natural Science Foundation of China (Grant no. 41176170)
【所属期刊栏目】 Articles (2015年03期)
  • 【DOI】10.13679/j.advps.2015.3.00249
  • 【分类号】P402;X51
  • 【被引频次】1
  • 【下载频次】11
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