基于张衡一号电磁卫星的夏季磁静日新疆区域上空电离层电子密度变化特征  

VARIATION CHARACTERISTICS OF ELECTRON DENSITY ABOVE XINJIANG REGION DURING QUIET MAGNETIC PERIOD IN SUMMER BASED ON ZHANG HENG-1 SATELLITE

作　　者：雷晴 赵彬彬[1] 卓瑞祺 刘代芹[1] LEI Qing;ZHAO Bin-bin;ZHUO Rui-qi;LIU Dai-qing(Earthquake Agency of Xinjiang Uygur Autonomous Region,Urumqi 830011,Xinjiang,China)

机构地区：[1]新疆维吾尔自治区地震局,新疆乌鲁木齐830011

出　　处：《内陆地震》2023年第3期247-255,共9页Inland Earthquake

基　　金：新疆维吾尔自治区重点研发专项(2020B03006-2);中科院战略性先导科技专项(XDB18020201).

摘　　要：采用张衡一号电磁卫星朗缪尔探针(Langmuir Probe,LAP)载荷原位电子密度对夏季磁静日时段新疆区域(30°~55°N,70°~100°E)的顶部电离层N e进行分析。通过分析日侧和夜侧的数据变化曲线:40°~55°N范围内N e数据变化平稳,日侧N e值平均高于夜侧N e值的2倍,其中夜侧N e值稳定在0.5×10^(10) cm^(-3)~1.0×10^(10) cm^(-3),日侧N e稳定在1.0×10^(10) cm^(-3)~1.5×10^(10) cm^(-3);而30°~40°N范围上N e数据波动较大。根据地方时特征分析结果表明:无论是夜侧还是日侧,随着纬度的降低N e值逐渐增大,N e值最大达到5.25×10^(10) cm^(-3)。研究区域范围内N e日侧、夜侧在不同纬度、不同地方时具有显著不同的特征形态。In this paper,the electron density of N e in the top ionosphere of Xinjiang region(30°~55°N,70°~100°E)is analyzed by using the in-situ electron density of the LAP load of the Zhangheng-1 electromagnetic satellite in the period of magnetically quiet days in summer.By analyzing the data variation curves of the day side and night side,it can be concluded that the electron density of N e changes steadily within the range of 40°N to 55°N,and the daily N e value is on average twice higher than the night side N e value.The night side is stable in the range of 0.5×10^(10) cm^(-3)~1.0×10^(10) cm^(-3),and the day side is stable in the range of 1.0×10^(10) cm^(-3)~1.5×10^(10) cm^(-3).However,the data of Ne electron density in the region of 30°N~40°N fluctuates greatly.According to the analysis of local time characteristics,the N e value gradually increases with the decrease of latitude,whether on the night side or the day side.N e value reaches maximum 5.25×10^(10) cm^(-3).The diurnal and nocturnal sides of N e electron density in the study area have significantly different characteristics in different latitudes and different places.

关 键 词：“张衡一号”电磁卫星 朗缪尔探针 磁静日 电子密度 日变特征 

分 类 号：P315.9[天文地球—地震学]