Observation of the Double Sodium Layer Over Haikou,China by Lidar  

作　　者：ZHANG Tiemin WANG Jihong FU Jun YANG Dali YANG Xianchang WU Wei YANG Guotao 

机构地区：[1]College of Physics and Electronic Engineering,Hainan Normal University [2]State Key Laboratory of Space Weather,Center for Space Science and Applied Research,Chinese Academy of Sciences

出　　处：《空间科学学报》2013年第4期410-412,共3页Chinese Journal of Space Science

基　　金：Supported by High Education Research of the Education Department of Hainan Province(Hjkj2012-21);Specialized Research Fund for State Key Laboratories(Y02211J82S,Y02211A49S)

摘　　要：A Double Sodium Layer(DSL) structure was observed during the night of August 22, 2011 over Haikou,China(20°N,110°E) by Na lidar.This DSL comprised a typical sodium layer at altitudes of 80～105km and a higher sodium layer at altitudes of 105～115km in about 0.5 h.A wavelength of 589 nm dye laser pumped by a Nd:YAG laser was used to make the measurement. The backscattered fluorescence photons from the sodium layer were collected by a telescope with a primary mirror of 1000 mm in diameter.The sodium density of these layers during the nighttime observation in the Mesosphere and Lower-Thermosphere(MLT) was studied.A Double Sodium Layer （DSL） structure was observed during the night of August 22, 2011 over Haikou, China （20°N,110°E） by Na lidar. This DSL comprised a typical sodium layer at altitudes of 80-105km and a higher sodium layer at altitudes of 105-115km in about 0.5h. A wavelength of 589 nm dye laser pumped by a Nd： YAG laser was used to make the measurement. The backscattered fluorescence photons from the sodium layer were collected by a telescope with a primary mirror of 1000mm in diameter. The sodium density of these layers during the nighttime observation in the Mesosphere and Lower-Thermosphere （MLT） was studied.

关 键 词：LIDAR Double Sodium Layer(DSL) Mesosphere and Lower-Thermosphere(MLT) 

分 类 号：P352.7[天文地球—空间物理学]