空间科学学报2020，Vol.40Issue(2)：207-214,8.
Seasonal Variations of Mesospheric Densities Observed by Rayleigh Lidar at Golmud,Qinghai
Seasonal Variations of Mesospheric Densities Observed by Rayleigh Lidar at Golmud, Qinghai
摘要
Abstract
From Aug.2013 to Oct.2015,a Rayleigh lidar has been used to study the middle atmosphere at Golmud (36.25°N,94.54°E),Qinghai,located in the northeastern part of the Tibetan Plateau.Mesospheric density profiles from 50 to 90 km were retrieved based on 205 nights of lidar observation,with a total of 1616 hours of operation.We compared our lidar density measurements with SABER observations onboard TIMED satellite and MSIS-00 model data.The results showed that the annual mean density measured by lidar agreed well with SABER data,but both were lower than that of MSIS-00.All datasets exhibited dominant annual oscillation in the mesosphere.From 63 to 85 km,the annual amplitude of lidar density is larger than those of SABER and MSIS-00.PDD (Percentage of Density Difference) was calculated to investigate the mesospheric density climatology.The largest density variations of lidar,MSIS-00,and SABER occurred at around 72 km.Both lidar and SABER PDD reached their maximum in May,about one month earlier than the MSIS-00;while the minimum PDD appeared in late December for all datasets.关键词
Lidar/SABER/MSIS model/Mesospheric density/Seasonal variationsKey words
Lidar/SABER/MSIS model/Mesospheric density/Seasonal variations分类
天文与地球科学引用本文复制引用
DAIYaru,PANWeilin,QIAOShuai,HUXiong,YANZhaoai,BANChao..Seasonal Variations of Mesospheric Densities Observed by Rayleigh Lidar at Golmud,Qinghai[J].空间科学学报,2020,40(2):207-214,8.基金项目
Supported by the National Key R and D Program of China (2018YFC1407301,2016YFC1400301) and the National Natural Science Foundation of China (41127901) （2018YFC1407301,2016YFC1400301）
