Physical and optical properties of aerosols over an urban location in Spain: seasonal and diurnal variability
Physical and optical properties of aerosols over an urban location in Spain: seasonal and diurnal variability
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DOI：
10.5194/acp-10-239-2010
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发表时间：
2009-09
影响因子：
6.3
通讯作者：
H. Lyamani;F. Olmo;L. Alados-Arboledas
中科院分区：
文献类型：
--
作者：
H. Lyamani;F. Olmo;L. Alados-Arboledas
抽象的。对 2005 年 12 月至 2007 年 11 月期间在西班牙东南部城市格拉纳达获得的气溶胶光学特性和气溶胶数量大小分布的测量结果进行了分析。已发现测量变量存在较大变化，并且与排放源和气象条件的变化有关。冬季获得较高的气溶胶吸收和散射系数值，而在夏季测量到较低的值。表面气溶胶光学特性的这种季节性模式与柱状气溶胶光学深度显示的季节性周期相反。地表和柱综合数据季节特征的差异与气溶胶垂直分布、气溶胶来源和边界层高度的季节变化有关。冬季“细”颗粒的数量密度（0.5
Abstract. Measurements of aerosol optical properties and aerosol number size distribution obtained during the period from December 2005 to November 2007 at Granada, an urban site in south-eastern Spain, are analyzed. Large variations of the measured variables have been found, and related to variations in emissions sources and meteorological conditions. High values of aerosol absorption and scattering coefficients are obtained during winter and low values are measured during summer. This seasonal pattern in the surface aerosol optical properties is opposite to the seasonal cycle showed by columnar aerosol optical depth. The differences in the seasonal features of the surface and column-integrated data are related to seasonal variations in the aerosol vertical distribution, aerosol sources and boundary layer height. In winter the number density of "fine" particles (0.5