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
Study of Sodium Layer Density Over Haikou by Lidar During the Night of 4 May 2010
查看参考文献12篇
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文摘
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使用Nd:YAG激光器和泵浦染料激光器产生的589 nm激光,与中高层大气中钠原子产生共振,利用直径为1000 mm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23:52 LT,持续12 min. |
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其他语种文摘
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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 589 nm by a sodium fluorescence cell. The energy and divergence of the beam are about 42 mJ and lmrad,respectively. The repetition rate of Nd:YAG laser is 30 Hz. The backscattered fluorescence photons from the sodium layer are collected by a telescope with a 1000 mm 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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来源
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空间科学学报
,2013,33(1):48-52 【核心库】
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关键词
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激光雷达
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钠层密度
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地址
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1.
海南师范大学物理与电子工程学院, 海口, 571158
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中国科学院空间科学与应用研究中心, 空间天气学国家重点实验室, 北京, 100190
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0254-6124 |
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学科
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地球物理学 |
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基金
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海南省高等学校科学研究项目
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空间天气学国家重点实验室专项基金项目
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文献收藏号
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CSCD:4797946
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参考文献 共
12
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