摘要
使用Nd∶YAG激光器泵浦染料激光器产生的589 nm激光与中高层大气中钠原子发生共振,利用直径为1000 mm的望远镜接收钠层的光子回波,研究了2014年8月30日12:09 UT到18:21 UT中国海口市中高层大气中钠层密度分布.在12:25 UT到12:42 UT观测到突发"三峰"钠层的出现,共持续17 min.做出了突发"三峰"钠层密度和高度随时间变化的关系曲线,做出了突发"三峰"钠层密度和高度的变化范围和趋势,并且计算了突发钠层的强度因子.此外,还将突发"三峰"钠层峰值密度与儋州测高仪所测得的电离层突发数据进行对比,获得两者的相关性.
The 589 nm laser produced by Nd：YAG LIDAR and pumped dye LIDAR is resonant with the sodium atom in the middle and upper atmosphere, the photon echo of the sodium layer is received by a telescope with a diameter of 1000 mm, and the density distribution of sodium layer in mesopause over Haikou, China, from 12：09 UT （Universal Time） to 18：21 UT in August 30, 2014 is studied. Observing the sporadic “three peaks” sodium layer appeared in 12：25 UT to 12：42 UT, which lasted 17 min. We got the sporadic “three peaks” sodium layer, the relation curve of altitude with time, the range and trend of the change of the density and altitude of the sporadic “three peaks”, and calculated the intensity factor of sporadic sodium layer. In addition, we compared the peak density of the sporadic “three peaks” with the ionospheric data measured by the altimeter located at Danzhou, and got the correlation between them.
作者
黄光鉥
陆鹏泽
张铁民
HUANG Guangshu;LU Pengze;ZHANG Tiemin(School of Physics and Electronic Engineering,Hainan Normal University,Haikou 571158,China)
出处
《海南师范大学学报（自然科学版）》
CAS
2018年第2期232-236,共5页
Journal of Hainan Normal University（Natural Science）
基金
国家自然科学基金(41364005)
海南师范大学大学生创新训练项目(cxcyxj2016067)
关键词
激光雷达
钠层密度
突发钠层
lidar
sodium layer density
sporadic sodium layer
