| 黄山顶大气气溶胶吸收和散射特性观测分析 |
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| 引用本文： | 陈景华,银燕,林振毅,陈魁,康汉青,严家德.黄山顶大气气溶胶吸收和散射特性观测分析[J].气候与环境研究,2011,16(5):641-648. |
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| 作者姓名： | 陈景华 银燕 林振毅 陈魁 康汉青 严家德 |
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| 作者单位： | 南京信息工程大学,中国气象局大气物理与大气环境重点开放实验室,南京210044 |
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| 基金项目： | 江苏省高校科技创新团队项目，江苏省“333人才工程”计划，国家重点研究发展计划项目2006CB403706 |
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| 摘 要： | 采用光声黑碳仪（PASS）2008年5～7月在黄山光明顶的连续观测资料，分析了该地区大气气溶胶吸收和散射系数变化特征及其与气象因子的关系。分析结果表明：在相对干燥的条件下（相对湿度小于60%）吸收散射系数日变化明显，总体上白天大，晚上小；相对湿度与吸收和散射系数有很强的正相关性，相关系数分别为0.87和0.80，而风速与散射吸收系数则呈现负相关关系，吸收系数、散射系数与风速的相关系数分别为-0.53和-0.78；湿清除使大气气溶胶的吸收和散射系数明显降低；与在平原地区的南京相比，黄山山顶的吸收和散射系数日变化趋势与南京相反，且数值比南京小一个量级。
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| 关 键 词： | 黄山 气溶胶 吸收系数 散射系数 气象因子 |
An Observational Study of Aerosol Optical Properties at the Top of Huangshan Mountains |
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| CHEN Jinghu,YIN Yan,LIN Zhenyi,CHEN Kui,KANG Hanqing and YAN Jiade.An Observational Study of Aerosol Optical Properties at the Top of Huangshan Mountains[J].Climatic and Environmental Research,2011,16(5):641-648. |
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| Authors: | CHEN Jinghu YIN Yan LIN Zhenyi CHEN Kui KANG Hanqing and YAN Jiade |
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| Institution: | CHEN Jinghua,YIN Yan,LIN Zhenyi,CHEN Kui,KANG Hanqing,and YAN Jiade China Meteorological Administration Key Laboratory for Atmospheric Physics and Environment,Nanjing University of Information Science and Technology,Nanjing 210044 |
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| Abstract: | The absorption and scattering coefficients of atmospheric aerosols were measured continuously using the Photo Acoustic Soot Spectrometer (PASS) during May to July in 2008 at the Guangmingding meteorological observatory on Huangshan Mountains. The characteristics of absorption and scattering coefficients, such as the diurnal variation and the relationships to meteorological factors were analyzed. The results show that, under the relative dry conditions (with the relative humidity lower than 60%), the absorption and scattering coefficients are larger during the daytime than that at night. It is found that both of these two coefficients are well correlated with relative humidity (with the correlation coefficients of 0.87 and 0.80, respectively), and are negatively correlated with the local wind speed (with the correlation coefficients of -0.53 and -0.78, respectively). It is also shown that both the absorption and scattering coefficients are remarkably reduced due to precipitation or fog. Compared with the properties measured in Nanjing, it is found that the values of absorption and scattering coefficients measured on Huangshan Mountains are order of magnitude smaller, and that the daily cycle is almost opposite to that in Nanjing. The possible reasons for this are explored. |
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| Keywords: | Huangshan Mountains aerosol absorption coefficient scattering coefficient meteorological factors |
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