| 广州城区冬季大气边界层气溶胶激光雷达探测 |
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| 引用本文： | 刘文彬,伦伟明,邝俊侠,刘建国,谢品华.广州城区冬季大气边界层气溶胶激光雷达探测[J].广州环境科学,2011(2). |
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| 作者姓名： | 刘文彬 伦伟明 邝俊侠 刘建国 谢品华 |
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| 作者单位： | 广州市环境监测中心站;中国科学院安徽光学精密机械研究所环境光学与技术重点实验室; |
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| 摘 要： | 激光雷达是大气边界层气溶胶和云的一个高效探测工具。2010年12月利用Mie散射激光雷达对广州城区冬季大气边界层进行系统观测,分析讨论了测站地域上空大气气溶胶的消光系数垂直分布和时间变化的主要特征。结果表明:冬季广州大气边界层气溶胶主要分布在1100m以下区域,气溶胶分布具有多层结构;大气边界层高度稳定分布在500~620m左右,边界层高度日变化不明显;冬季广州气溶胶源较为稳定并且变化慢;广州城区气溶胶浓度白天比晚上大,峰值出现11颐00~14颐00左右,谷值出现在20颐00左右。
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| 关 键 词： | 激光雷达 气溶胶 边界层 边界层高度 |
PBL Aerosol Monitoring by Lidar over Guangzhou in Winter |
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| Liu W enbin Lun weiming Kuang Junxia Liu Jianguo Xie Pinhua.PBL Aerosol Monitoring by Lidar over Guangzhou in Winter[J].Guangzhou Environmental Sciences,2011(2). |
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| Authors: | Liu W enbin Lun weiming Kuang Junxia Liu Jianguo Xie Pinhua |
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| Institution: | Liu W enbin Lun weiming Kuang Junxia Liu Jianguo Xie Pinhua |
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| Abstract: | Lidar is a more effective device in monitoring the planetary boundary laye(rPBL)aerosol and cloud. The systematic observational results over Guangzhou in Dec 2010 were obtained by using Mie scattering lidar. The spatial-temporal characteristics of aerosol extinction coefficient in PBL are analyzed and discussed. The results indicate that the aerosol mainly distributes within 1 100 m over Guangzhou in winter, and its distribution has a multi-layer structure. The PBL locates stably at 500~620 m, without obvio... |
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| Keywords: | lidar aerosol PBL PBL height |
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