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

Variation characteristics of carbon monoxide and ozone over the course of the 2014 Chinese National Arctic Research Expedition
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2014年中国国家北极科考过程中一氧化碳和臭氧变化特征

DOI:
10.13679/j.advps.2015.3.00249
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发表时间:
2015-01
影响因子:
--
通讯作者:
XIE Zhouqing
XIE Zhouqing
中科院分区:
--
文献类型:
--
作者:
BIAN Lingen;ZHENG Xiangdong;DING Minghu;XIE Zhouqing

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在中国第六次北极科学考察期间(2014年7月至9月),对海洋边界层中一氧化碳和臭氧的浓度进行了测量。一氧化碳浓度在47.00~528.52 ppbv之间,平均为103.59±40.37ppbv。除东中国海面极高值可能与人为排放有关外,随纬度的升高而略有下降。臭氧浓度在3.27~77.82 ppbv之间,平均29.46±10.48 ppbv。北冰洋臭氧浓度随着北冰洋以外纬度的增加而急剧下降(北冰洋和北冰洋都是如此),而北冰洋上空的臭氧浓度没有明显变化。大部分断面上一氧化碳与臭氧的正相关表明,海洋边界层中的臭氧主要来源于涉及一氧化碳的光化学反应。
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.
DOI: --
发表时间: 1998
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