2018年4月钠层激光雷达观测特性研究  

Study on Sodium Layer Lidar Characteristics during April 2018

作　　者：邹旭[1] 杨红 符运良[1] 彭菊媛 张铁民[1] ZOU Xu;YANG Hong;FU Yunliang;PENG Juyuan;ZHANG Tiemin(School of Physics&Electronic,Hainan Normal University,Haikou 571158,China;Library,Hainan Normal University,Haikou 571158,China)

机构地区：[1]海南师范大学物理与电子工程电学院,海南海口571158 [2]海南师范大学图书馆,海南海口571158

出　　处：《海南师范大学学报（自然科学版）》2019年第4期420-423,共4页Journal of Hainan Normal University（Natural Science）

基　　金：海南省自然科学基金（20164163）;国家自然科学基金资助项目（41564006）

摘　　要：通过钠层激光雷达观测,研究了中国低纬地区2018年4月的特征采集样例,对比观测发现海南上空出现了间歇型的钠层分布规律,以及较为少见长久持续的钠层双峰结构。同时观测到了4月单天的钠层结构与重力波的相互作用。在重力波的作用下钠层峰型保持完好,并有明显的峰位向下移动。当重力波达到饱和值时,波破碎导致了钠层形态的变化,实验观测数据与理论符合极好,表明春季中国低纬度地区钠层变化具有一定的多样性。By observing using sodium layer lidar, the characteristics of sodium layer lidar features in the low latitude of China in April 2018 were studied. The comparative observations showed that the sodium layer exhibited diverse distribution of sodium layer in the sky of Hainan, and the intermittent shape and a rare long-lasting sodium layer double-peak structure was occurred. At the same time, the gravity wave interactions were observed when the Gaussian sodium layer distribution was observed on a single day in April. The peak of the sodium layer shifted slightly due to the gravity waves effects. When the gravity wave reaches the saturation value, the gravity wave breaking changed the shape of the sodium layer,which fitted well with the theoretical reference. The sodium layer changes indicated that there is a diverse evolution process at the low latitudes of China in spring.

关 键 词：激光雷达 钠层 低纬度 钠层形态 双峰结构 

分 类 号：P352[天文地球—空间物理学]