GONG Chun-wen, LI Jian-yu, LI Xue-bin etc. Influence of straw burning and dust on aerosol optical properties[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10): 2768-2777
GONG Chun-wen, LI Jian-yu, LI Xue-bin etc. Influence of straw burning and dust on aerosol optical properties[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10): 2768-2777 DOI: 10.3788/OPE.20152310.2768.
Influence of straw burning and dust on aerosol optical properties
The Aerosol Optical Depth (AOD) and ngstrm indexes (
) 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
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
is smaller during dust days than that during clear days
which is usually less than 0.5. The relationship between the AOD and the
influenced by different aerosols in different zones is evidently different. The results indicate that the
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 .
关键词
Keywords
references
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