| 2010年5月4日夜间海口上空钠层密度的激光雷达观测研究 |
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| 引用本文： | 张铁民,王继红,傅军,关塞,张福恒,沈振江,杨国韬.2010年5月4日夜间海口上空钠层密度的激光雷达观测研究[J].空间科学学报,2013,33(1):48-52. |
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| 作者姓名： | 张铁民 王继红 傅军 关塞 张福恒 沈振江 杨国韬 |
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| 作者单位： | 1.海南师范大学物理与电子工程学院 海口 571158 |
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| 基金项目： | 海南省高等学校科学研究项目(Hjkj2012-21);空间天气学国家重点实验室专项基金项目(Y02211J82S,Y02211A49S)共同资助 |
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| 摘 要： | 使用Nd:YAG激光器和泵浦染料激光器产生的589nm激光, 与中高层大气中钠原子产生共振, 利用直径为1000mm的望远镜接收钠层的光子回波. 研究中国海口市2010年5月4日夜间的中高层大气中钠层密度分布, 计算钠层的相对密度和绝对密度, 研究钠层密度峰值变化. 观测到突发钠层出现在23:52LT, 持续12min.
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| 关 键 词： | 激光雷达 钠层密度 |
| 收稿时间： | 2011-09-01 |
Study of Sodium Layer Density Over Haikou by Lidar During the Night of 4 May 2010 |
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| ZHANG Tiemin,WANG Jihong,FU Jun,GUAN Sai,ZHANG Fuheng,SHEN Zhenjiang,YANG Guotao.Study of Sodium Layer Density Over Haikou by Lidar During the Night of 4 May 2010[J].Chinese Journal of Space Science,2013,33(1):48-52. |
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| Authors: | ZHANG Tiemin WANG Jihong FU Jun GUAN Sai ZHANG Fuheng SHEN Zhenjiang YANG Guotao |
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| Institution: | 1.College of Physics and Electronic Engineering, Hainan Normal University, Haikou 5711582.State Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190 |
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| Abstract: | The basic characters of the sodium layer density at a low-latitude location (Haikou, China, 20°N, 110°E) are described from analysis of sodium lidar observation data. A Nd:YAG laser pumped dye laser is used to generate the probing beam. The wavelength of the dye laser is set to 589nm by a sodium fluorescence cell. The energy and divergence of the beam are about 42mJ and 1mrad, respectively. The repetition rate of Nd:YAG laser is 30Hz. The backscattered fluorescence photons from the sodium layer are collected by a telescope with a 1000mm diameter primary mirror. A sodium layer density profile of upper atmosphere is derived from lidar files collected during the night of 4 May 2010 in Haikou, China. In this paper, the relative density and the absolute one for the sodium layer profile are studied. This result, shows a good correlation with that reported by Beatty at Arecibo, Puerto Rico (18°N, 67°W). A sporadic sodium layer is observed and lasted 12 minutes. |
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