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基于遥感测量的淮河流域中部气溶胶光学和微物理特性分析
范伟1, 陈凯2, 凌新锋3, 黄勇1
(1.安徽省气象科学研究所;2.安徽省大气探测技术保障中心;3.寿县国家气候观象台)
Analysis of aerosol optical and microphysical properties in western of Huaihe River basin County based on remote sensing measurement
Fan wei1, Chen kai2, Ling Xinfeng3, Huang Yong1
(1.Anhui Institute of Meteorology and Sciences;2.Anhui Center of Atmospheric detection technology support;3.Shouxian National Climatology Observatory)
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投稿时间:2018-08-22    修订日期:2020-02-11
中文摘要: 准确得到当地气溶胶光学和微物理特性,对于研究气象特征、气候变化,以及大气环境污染等具有重要意义。利用设置在中国气象局寿县国家气候观象台2017年全年的太阳_天空辐射计CE318数据,对当地一年四季气溶胶光学和微物理特征进行分析。结果表明:1、春季气溶胶光学厚度最高,夏季和秋季最为接近、也最低,冬季介于之间。2、AE数据集中在0.9~1.4之间,以细模态粒子为主。3、四季的气溶胶体积谱分布基本相似,且即有细模态粒子,也有粗模态粒子。4、夏季气溶胶折射率实部最小,说明当地夏季水汽含量最大,实部与光谱波长没有明显关系,而虚部则有。5、单次散射反照率均在80%以上,气溶胶散射效应明显。6、非球形粒子占主要支配地位且在春季数量最多。研究结果对于淮河流域中部区域气溶胶特征的掌握,和其对大气辐射、气候变化的影响,空气质量监测,以及提高针对我国该特定区域大气辐射传输模型计算精度有着重要意义。
Abstract:Accurate local aerosol optics and microphysical properties are of great significance for the research of meteorological characteristics, climate change and atmospheric environmental pollution. Using the year's sun-sky radiometer CE318 data observed by National Climatology Observatory in Shou Xian County in China setting by China Meteorological Administration, from 2017, the measurement location aerosol optical and microphysical characteristics are obtained. The results shown: 1.The aerosol optical depth is the highest in spring, the closest and lowest in summer and autumn, and winter is between them.2.AE data are concentrated in the range of 0.9 ~ 1.4, mainly in the form of fine mode particles.3.The aerosol volume size distributions in four seasons is basically similar, and there are both fine and coarse mode particles.4.The real part of the refraction index of aerosol in summer is the smallest, indicating that the water vapor content in summer is the largest, and the real part has no obvious relation with the wavelength, while the imaginary part has.5.The single scattering albedo is above 80%,the scattering effect of aerosol is obvious.6.Non-spherical particles dominate and are most abundant in spring.The results have great significant for mastering aerosols characteristics, for researching the atmospheric radiation, climate change, air quality monitoring, and for improving the calculation accuracy of atmospheric radiation transfer model in specific regions in western of Huaihe River basin.
文章编号:201808220373     中图分类号:    文献标志码:
基金项目:国家重点研发计划课题,国家自然科学基金项目(面上项目,重点项目,重大项目),中国科学院重点资助项目,安徽省自然科学基金,安徽省重点研究和开发计划项目,淮河流域气象开放研究基金,2019年度安徽省气象局气象科技发展基金
引用文本:
范伟,陈凯,凌新锋,黄勇,0.[en_title][J].Meteor Mon,():-.
Fan wei,Chen kai,Ling Xinfeng,Huang Yong,0.Analysis of aerosol optical and microphysical properties in western of Huaihe River basin County based on remote sensing measurement[J].Meteor Mon,():-.