渤海大气二氧化硫浓度分布及陆源输送研究

姜杰; 查勇; 陈骁强; 沈丹

渤海大气二氧化硫浓度分布及陆源输送研究

姜杰^1,,
查勇²,
陈骁强²,
沈丹²

1.
南京师范大学地理科学学院虚拟地理环境教育部重点实验室,江苏南京 210046;南京邮电大学地理与生物信息学院,江苏南京 210046
2.
南京师范大学地理科学学院虚拟地理环境教育部重点实验室,江苏南京 210046

基金项目: 国家科技支撑计划(2008BAC34B07);江苏省属高校自然科学重大基础研究项目(08KJA170001);江苏高校优势学科建设工程资助项目。

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出版历程
- 收稿日期: 2010-01-16
- 修回日期: 2011-04-19

Study on concentration and transport characteristics of sulfur dioxide over the Bohai Sea

1.
Key Laboratory of Ministry of Education for Virtual Geographic Environment, School of Geography Science, Nanjing Normal University, Nanjing 210046, China;College of Geographic and Biological Information, Nanjing University of Posts and Telecommunications, Nanjing 210046, China
2.
Key Laboratory of Ministry of Education for Virtual Geographic Environment, School of Geography Science, Nanjing Normal University, Nanjing 210046, China

摘要

摘要: 利用2005年OMI/Aura反演的大气边界层二氧化硫(SO₂)垂直柱密度数据,分析了渤海大气SO₂浓度分布时空变化特征,并利用FNL气象资料,运用HYSPLIT模型对渤海大气环流后向轨迹进行分析。研究表明:渤海海域大气SO₂浓度随季节变化明显,在秋冬季SO₂浓度比较高,在冬季高达6.187×10¹⁶cm^-2;在春夏季SO₂浓度都比较低,夏季是一年中最低的季节,约为3.766×10¹⁶cm^-2;在不同季节SO₂浓度空间分布极不均衡。通过后向轨迹分析发现,渤海大气SO₂浓度主要受环渤海陆上地区影响,在冬季影响最强烈,在夏季相对弱些。
- 二氧化硫 /
- 渤海 /
- HYSPLIT模型 /
- 后向轨迹
Abstract: The spatiotemporal variation in SO₂ over the Bohai Sea during 2005 was analyzed from the planetary boundary layer (PBL) SO₂ column densities retrieved from aura ozone monitoring instrument (OMI) data. Using the HYSPLIT model and FNL reanalysis data, the backward trajectories arriving in the Bohai Sea were calculated in order to identify the lead contributors. The obtained results indicate that the SO₂ concentration over the Bohai Sea varies greatly with seasons, the mean concentration of SO₂ shows the high values in autumn and winter, low values in spring and summer. the highest value which exceeds 6.187×10¹⁶ cm^-2 in winter, the lowest concentration is 3.766×10¹⁶ cm^-2 in summer; moreover the SO₂ concentration varies greatly in the spatial distribution in different seasons. The results of the backward trajectory analysis show that SO₂ emission from the region around the Bohai Sea has great influence on the Bohai Sea, the influence is the greatest in winter and the weakest in summer.
- sulfur dioxide /
- Bohai Sea /
- HYSPLIT /
- backward trajectory

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参考文献(18)

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