| 用激光雷达探测合肥高空钠层的变化 |
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| 引用本文： | 刘小勤,胡顺星,李琛,胡欢陵,张寅超,薛向辉.用激光雷达探测合肥高空钠层的变化[J].强激光与粒子束,2006,18(12):1944-1948. |
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| 作者姓名： | 刘小勤 胡顺星 李琛 胡欢陵 张寅超 薛向辉 |
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| 作者单位： | 1. 中国科学院 安徽光学精密机械研究所, 合肥 230031;2. 中国科学技术大学 地球和空间科学学院, 合肥 230026 |
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| 摘 要： | 介绍了自行设计的钠共振荧光激光雷达系统，并对钠层密度、钠层柱密度、中心高度及均方根宽度进行了计算和分析。计算结果表明:从2005年12月到2006年3月合肥上空钠层变化显著，钠层柱密度从12月平均值5.4×109cm-2变化到3月平均值2.4×109cm-2，下降了50%以上。均方根宽度也下降，中心高度略有波动。合肥钠层的变化趋势与中纬度其它地区具有可比性。
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| 关 键 词： | 激光雷达 共振荧光 钠密度 柱密度 |
| 文章编号： | 1001-4322(2006)12-1944-05 |
| 收稿时间： | 2006-06-07 |
| 修稿时间： | 2006-12-04 |
Atmospheric sodium measurement at Hefei by lidar |
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| LIU Xiao-qin,HU Shun-xing,LI Chen,HU Huan-ling,ZHANG Yin-chao,XUE Xiang-hui.Atmospheric sodium measurement at Hefei by lidar[J].High Power Laser and Particle Beams,2006,18(12):1944-1948. |
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| Authors: | LIU Xiao-qin HU Shun-xing LI Chen HU Huan-ling ZHANG Yin-chao XUE Xiang-hui |
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| Institution: | 1. Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, P.O.Box 1125, Hefei 230031, China;2. School of Earth and Space Science, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | Sodium resonance fluorescence lidar was used to detect sodium layer at Hefei. The configuration of sodium resonance fluorescence lidar was introduced. The measurement data have been retrieved and analyzed. The results show that the density of sodium varied much during Dec.2005 to Mar.2006: The column abundance of sodium layer changed from 5.4×109cm-2 to 2.4×109cm-2, reduced almost 50%; The mean RMS width also declined, and the centroid height of sodium layer had small fluctuation. The variation trend of sodium layer at Hefei is similar to those in the other mid-latitude places (such as Illinois, Tokyo) in the world. |
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| Keywords: | Lidar Resonance fluorescence Sodium density Column abundance |
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