海洋大气气溶胶粒子谱分布及其消光特征分析

鲁先洋; 李学彬; 秦武斌; 朱文越; 徐青山

doi:10.3788/IRLA201746.1211002

海洋大气气溶胶粒子谱分布及其消光特征分析

doi: 10.3788/IRLA201746.1211002

1.
中国科学院安徽光学精密机械研究所中国科学院大气成分与光学重点实验室,安徽合肥 230031;
2.
中国科学技术大学研究生院科学岛分院,安徽合肥 230031

基金项目:

国家自然科学基金（41205010，41305019）;国家“863”计划

详细信息

作者简介:
鲁先洋(1979-),男,博士生,主要从事大气探测方面的研究。Email:xianyang@mail.ustc.edu.cn

中图分类号: X831

Particle size distribution and extinction characteristic analysis of marine atmospheric aerosol

1.
Key Laboratory of Atmospheric Composition and Optical Radiation,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China;
2.
Science Island Branch of Graduate School,University of Science and Technology of China,Hefei 230031,China

摘要: 为研究海洋大气气溶胶粒子数浓度时空分布和粒径谱分布特征，2014年8月至2016年3月期间，利用光学粒子计数器和自动气象站等设备在广州茂名海边、东海和南海海域、三亚近海海域以及太平洋和印度洋海域对海洋大气气溶胶粒子数密度谱及大气温度、湿度、气压、风速等进行了测量。对不同海域不同气象条件下的谱分布特征进行了统计分析，并对谱分布进行了拟合。结果表明海洋大气气溶胶粒子谱分布是由一个细粒模和一个中间模组成，但近海的粒子数浓度大于远海。远海气溶胶粒子谱型稳定，海面风力是引起粒子数浓度变化的主要原因。东海和南海的粒子谱分为二段，小于0.5 m时用Junge谱的指数分布来描述，0.5~4 m段用对数正态分布来描述。大风天气下海洋气溶胶的消光系数明显增加，且在1~3 m波段的消光特征基本不受波长的影响。
- 海洋大气光学 /
- 大气气溶胶 /
- 粒子谱分布 /
- 消光系数 /
- 粒子数浓度
Abstract: For the study of spatial and temporal distribution of marine atmospheric aerosol number density and particle size distribution characteristics, the atmospheric aerosol particles size distribution, atmospheric temperature, humidity, pressure, wind speed etc were surveyed, from August 2014 to March 2016, by using an optical particle counter and automatic meteorological station in Maoming seaside, the East China Sea and the South China Sea, Sanya coastal waters and the Pacific and the Indian Ocean waters respectively. The aerosol spectral distribution in different areas under different meteorological conditions were statistically analyzed and fitted. The results show that the marine atmospheric aerosol particle size distribution is composed of a fine mode and a middle mode, but offshore sea particle number density is greater than that of open sea. The open sea particle size distribution keep steady, the sea surface wind is the main reason of the change of the aerosol number density. In the East China Sea and the South China Sea, the particle size distribution was divided into two sections, the exponential distribution of Junge spectrum was used to describe the section less than 0.5 micrometer, the logarithmic normal distribution was used to describe 0.5 to 4 micrometer section. The extinction coefficient of marine atmospheric aerosol increased obviously under the strong winds, and the extinction characteristics from 1 to 3 micrometer were not affected by wavelength.
- atmospheric and oceanic optics /
- atmospheric aerosol /
- particle size distribution /
- extinction coefficient /
- particle number density

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海洋大气气溶胶粒子谱分布及其消光特征分析

doi: 10.3788/IRLA201746.1211002

作者简介:
鲁先洋(1979-),男,博士生,主要从事大气探测方面的研究。Email:xianyang@mail.ustc.edu.cn

Particle size distribution and extinction characteristic analysis of marine atmospheric aerosol

计量

海洋大气气溶胶粒子谱分布及其消光特征分析

doi: 10.3788/IRLA201746.1211002

1. 中国科学院安徽光学精密机械研究所中国科学院大气成分与光学重点实验室,安徽合肥 230031;

2. 中国科学技术大学研究生院科学岛分院,安徽合肥 230031

作者简介:
鲁先洋(1979-),男,博士生,主要从事大气探测方面的研究。Email:xianyang@mail.ustc.edu.cn

English Abstract

Particle size distribution and extinction characteristic analysis of marine atmospheric aerosol

1. Key Laboratory of Atmospheric Composition and Optical Radiation,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China;

2. Science Island Branch of Graduate School,University of Science and Technology of China,Hefei 230031,China

全文HTML

目录

留言板

海洋大气气溶胶粒子谱分布及其消光特征分析

doi: 10.3788/IRLA201746.1211002

作者简介: 鲁先洋(1979-),男,博士生,主要从事大气探测方面的研究。Email:xianyang@mail.ustc.edu.cn

Particle size distribution and extinction characteristic analysis of marine atmospheric aerosol

计量

出版历程

海洋大气气溶胶粒子谱分布及其消光特征分析

doi: 10.3788/IRLA201746.1211002

1. 中国科学院安徽光学精密机械研究所 中国科学院大气成分与光学重点实验室,安徽 合肥 230031; 2. 中国科学技术大学研究生院 科学岛分院,安徽 合肥 230031

作者简介: 鲁先洋(1979-),男,博士生,主要从事大气探测方面的研究。Email:xianyang@mail.ustc.edu.cn

English Abstract

Particle size distribution and extinction characteristic analysis of marine atmospheric aerosol

1. Key Laboratory of Atmospheric Composition and Optical Radiation,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China; 2. Science Island Branch of Graduate School,University of Science and Technology of China,Hefei 230031,China

全文HTML

目录

作者简介:
鲁先洋(1979-),男,博士生,主要从事大气探测方面的研究。Email:xianyang@mail.ustc.edu.cn

1. 中国科学院安徽光学精密机械研究所中国科学院大气成分与光学重点实验室,安徽合肥 230031;

2. 中国科学技术大学研究生院科学岛分院,安徽合肥 230031

作者简介:
鲁先洋(1979-),男,博士生,主要从事大气探测方面的研究。Email:xianyang@mail.ustc.edu.cn

1. Key Laboratory of Atmospheric Composition and Optical Radiation,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China;

2. Science Island Branch of Graduate School,University of Science and Technology of China,Hefei 230031,China