黄山光明顶云降水影响黑碳气溶胶光学特性的观测分析

论文总字数：17858字

目 录

1绪论……………………………………………………………………4

1.1研究的目的和意义…………………………………………………………………………4

1.2黄山气候和天气背景………………………………………………………………………4

1.3国内外的研究进展…………………………………………………………………………5

1.3.1黑碳气溶胶的湿清除…………………………………………………………………5

1.3.2黑碳气溶胶对云雾影响………………………………………………………………5

1.3.3消光系数的测量………………………………………………………………………5

1.4本文研究内容………………………………………………………………………………6

2数据采集和仪器介绍…………………………………………………6

2.1数据采集……………………………………………………………………………………6

2.2观测仪器……………………………………………………………………………………7

3结果分析………………………………………………………………8

3.1数据的处理…………………………………………………………………………………8

3.2云雾中黑碳气溶胶的光学特性……………………………………………………………8

3.3黑碳气溶胶光学特性与云微物理量的相关性……………………………………………12

3.4黑碳气溶胶光学特性与雨强的相关性……………………………………………………13

4总结……………………………………………………………………14

4.1研究内容总结……………………………………………………………………………14

4.2本文特色…………………………………………………………………………………15

4.3研究的不足与展望………………………………………………………………………15

参考文献………………………………………………………………16

致谢……………………………………………………………………17

黄山光明顶云降水发生时气溶胶光学特性的观测分析

谢广晶

,China

Abstract：Using Photo Acoustic Soot Spectrometer (PASS) from April to July 2008on the Guangming Peak,Mount Huangshan, combined with the data obtained from the simultaneous drop mist spectrometer and raindrop spectrometer, the changes of aerosol absorption and scattering coefficients and its causes in the clouds was analyzed. Quantitatively analyzing the correlation between cloud microphysical quantities and black carbon aerosol optical properties, and the correlation between rain intensity and black carbon aerosol optical properties, the analysis results show that in the presence of cloudiness, the aerosol extinction coefficient increases under the cloudy weather without precipitation and the accumulation of aerosol before the occurrence of the plum rain, and decreases under the wet scavenging effect of rainfall or heavy fog; cloud water content and the average droplet diameter is inversely related to the extinction coefficient of black carbon aerosol; the rain intensity is also inversely related to the extinction coefficient of black carbon aerosol, and there is a hysteresis effect. From the beginning to the end of the plum rain period, the maximum lag correlation coefficient is increased, as well as the change rate of lag correlation coefficient with lag time.

Key words：Huangshan；Black carbon aerosol；Optical Characteristics；Cloud Microphysics；rain intensity

1 绪论

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