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气象:2020,46(4):528-537
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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,邱康俊,凌新锋,黄勇
(安徽省气象科学研究所,合肥 230031;大气科学与卫星遥感安徽省重点实验室,合肥 230031; 寿县国家气候观象台,安徽寿县 232200; 中国气象局淮河流域典型农田生态气象野外科学试验基地,安徽寿县 232200; 安徽省气象信息中心,合肥 230031)
Analysis of Aerosol Optical and Microphysical Properties in Central Part of Huaihe River Basin Based on Remote Sensing Measurement
FAN Wei,QIU Kangjun,LING Xinfeng,HUANG Yong
(Anhui Institute of Meteorology and Sciences, Hefei 230031; Anhui Key Laboratory of Atmospheric Sciences and Satellite Remote Sensing, Hefei 230031; Shouxian National Climatology Observatory, Anhui, Shouxian 232200; Huaihe River Basin Typical Farmland Ecological Meteorological Field Science Experiment Base of CMA, Anhui, Shouxian 232200; Anhui Meteorological Information Centre, Hefei 230031)
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投稿时间:2018-12-22    修订日期:2020-02-11
中文摘要: 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:春季气溶胶光学厚度最高,夏季和秋季最为接近,也最低,冬季介于夏、秋季之间;AE数据集中在0.9~1.5,以细模态粒子为主;四季的气溶胶体积谱分布基本相似,且既有细模态粒子,也有粗模态粒子;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;单次散射反照率均在80%以上,气溶胶散射效应明显;非球形粒子占主要支配地位且在春季数量最多。研究结果对于掌握淮河流域中部区域气溶胶特征,及其对大气辐射、气候变化的影响,监测空气质量,以及提高我国该特定区域大气辐射传输模型计算精度有重要意义。
Abstract:Using the whole year’s sun-sky radiometer CE318 data in 2017 observed by National Climatology Observatory in Shouxian County set by China Meteorological Administration, the aerosol optical and microphysical characteristics in the local area were analyzed. The results show as follows. The aerosol optical depth is the highest in spring, similarly lowest in summer and autumn, and in winter it is between them. AE data are concentrated in the range of 0.9-1.5, mainly in the form of fine mode particles. The aerosol volume size distributions in four seasons are basically similar, and there are both fine and coarse mode particles. 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. The single scattering albedo is above 80%, and the scattering effect of aerosol is obvious. Non-spherical particles dominate and are most abundant in spring. These findings have great significance for mastering aerosols characteristics, for researching the atmospheric radiation, climate change and air quality monitoring, and for improving the calculation accuracy of atmospheric radiation transfer model in specific regions in central part of Huaihe River Basin.
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基金项目:国家重点研发计划(2016YFC0201902)、国家自然科学基金项目(41875171和41705014)、中国科学院STS科技服务网络计划区域重点项目(KFJ-STS-QYZD-022)、〖JP2〗安徽省自然科学基金项目(1708085MD95和1608085MD84)、安徽省重点研究和开发计划项目(1804a0802215)、〖JP〗淮河流域气象开放研究基金项目(HRM201506)和2019年度安徽省气象局气象科技发展基金项目(KM201905)共同资助
引用文本:
范伟,邱康俊,凌新锋,黄勇,2020.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[J].气象,46(4):528-537.
FAN Wei,QIU Kangjun,LING Xinfeng,HUANG Yong,2020.Analysis of Aerosol Optical and Microphysical Properties in Central Part of Huaihe River Basin Based on Remote Sensing Measurement[J].Meteor Mon,46(4):528-537.