Investigation of PMSE echoes characteristics using the discontinuous EISCAT UHF observation and its relation with space environment

论文摘要

The observations of Polar Mesosphere Summer Echoes（PMSE） were carried out using the sporadic data of EISCAT UHF radar during the summer season from 2004 to 2015. There were 25 h of PMSE echoes with EISCAT UHF radar. PMSE echoes were mostly observed only during the early morning and fore-noon time. Moreover, the PMSE echoes are positively correlated with Lyman α radiation, but the correlation is non-significant. The occurrence of PMSE echoes in the early morning and fore-noon time and there positive correlation with Lyman α radiation suggests that solar radiations might be one important factor for PMSE echoes in this study. Very weak positive, but statistically non-significant correlation is found between PMSE occurrence rate and the local geomagnetic K-indices. It is found that there is a matching between the variation in the occurrence rate of PMSE and noctilucent clouds（NLC） up to some extent and they are positively correlated. This positive correlation might support the earlier proposed idea about the role of ice particle size in producing PMSE echoes at higher frequencies.

论文目录

• 1 Introduction （9）
• 2 Radar and experiment description
• 3 Data analysis
• 4 Results
•   4.1 Temporal variation of PMSE occurrence rate
•   4.2 PMSE occurrence rate at different altitudes
•   4.3 PMSE occurrence rate and its variation with solar and geomagnetic activity
•   4.4 PMSE occurrence rate in different years and its correlation with NLC occurrence rate
• 5 Summary and conclusions

文章来源

类型: 期刊论文

作者: Abdur RAUF,LI Hailong,Safi ULLAH,WANG Maoyan,MENG Lin

来源: Advances in Polar Science 2019年02期

年度: 2019

分类: 基础科学

专业: 气象学

单位: School of Electronic Science and Engineering, University of Electronic Science and Technology of China,School of Physics, University of Electronic Science and Technology of China

基金: supported by the National Natural Science Foundation of China (Grant nos. 41104097 and 41304119),Fundamental Research Funds for the Central Universities (Grant nos. ZYGX2015J039,ZYGX2015J037,and ZYGX2015J041)

分类号: P412.25

DOI: 10.13679/j.advps.2018.0041

页码: 132-138

总页数: 7

文件大小: 344K

下载量: 6