干旱区生态环境知识资源中心(Arid): 秸秆燃烧和沙尘对气溶胶光学特性的影响

Arid

	秸秆燃烧和沙尘对气溶胶光学特性的影响
其他题名	Influence of straw burning and dust on aerosol optical properties
	宫纯文; 李建玉; 李学彬; 刘庆; 魏合理
来源期刊	光学精密工程
ISSN	1004-924X
出版年	2015
卷号	23 期号:10 页码:2768-2777
中文摘要	利用多年积累的我国几个典型地区的太阳辐射计观测数据,反演了秸秆燃烧和沙尘日及其前后晴朗日的气溶胶光学厚度(AOD)和表征粒子尺度的Angstrom指数(alpha),并运用观测结果和反演数据对已知气溶胶源予以验证。对比分析了多个典型地区源自秸秆燃烧和沙尘的气溶胶光学特性,结果显示,秸秆燃烧和扬尘时AOD都大幅增加,而alpha在秸秆燃烧时比通常晴朗日增大,取值大于1.3;在扬尘时比通常晴朗日明显减小,取值小于0.5。另外,不同地区不同气溶胶源的AOD与alpha的关系明显不同。分析结果表明, alpha可作为秸秆燃烧和沙尘天气的一个标志参数,为生物燃烧性有机碳黑气溶胶光学特性的检测方法提供依据,也可为分析我国西北城市地区受周边沙漠的影响程度提供有益参考。
英文摘要	The Aerosol Optical Depth (AOD) and Angstrom indexes (alpha) influenced by straw burning, dust, and some sunny days were invertedby using the long-term measurement data from a sun-photometer in several typical regions of China. Then, the given aerosol sources were verified by the observed data and retrieved results. The optical characteristics of aerosols influenced by straw burning and dust were analyzed in several typical regions of China. The results show that the AOD obviously increases for the cases with straw burning and dust in the city. The alpha is larger in the periods of straw burning than that in clear days, the values during straw burning days usually are greater than 1.3. However, the alpha is smaller during dust days than that during clear days, which is usually less than 0.5. The relationship between the AOD and the alpha influenced by different aerosols in different zones is evidently different. The results indicate that the alpha can be a benchmark parameter of straw burning and dust to lay a basis for detection methods of organic black carbon aerosol optical properties and also to provide a reference for research of the effect degrees of urban areas of northwest China by surrounding deserts.
中文关键词	气溶胶 ; 光学厚度 ; 太阳辐射计 ; 秸秆燃烧 ; 沙尘 ; Angstrom参数
英文关键词	aerosol optical depth sun-photometer straw burning dust Angstrom parameter
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES ; ENVIRONMENTAL SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences ; Environmental Sciences & Ecology
CSCD记录号	CSCD:5551612
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232862
作者单位	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辐射重点实验室, 合肥, 安徽 230031, 中国
推荐引用方式 GB/T 7714	宫纯文,李建玉,李学彬,等. 秸秆燃烧和沙尘对气溶胶光学特性的影响[J],2015,23(10):2768-2777.
APA	宫纯文,李建玉,李学彬,刘庆,&魏合理.(2015).秸秆燃烧和沙尘对气溶胶光学特性的影响.光学精密工程,23(10),2768-2777.
MLA	宫纯文,et al."秸秆燃烧和沙尘对气溶胶光学特性的影响".光学精密工程 23.10(2015):2768-2777.