海口地区扩展F和GPS电离层闪烁发生时间相关性分析  

Correlation Analysis on Occurrence Time of Spread F and Ionospheric Scintillations in Haikou Region

作　　者：李静静[1] 盛冬生[1] 张红波[1] 

机构地区：[1]中国电波传播研究所,山东青岛266107

出　　处：《全球定位系统》2017年第2期40-43,共4页Gnss World of China

摘　　要：对2012年8月至2013年7月太阳活动高年海口地区扩展F和GPS L1频段电离层闪烁进行了发生时间相关性分析。结果表明,该地区的GPS电离层闪烁与扩展F具有较好的相关性,二者发生的相关系数为0.95.受太阳活动高年低纬电离层不均匀体发展演化特性和设备观测方式的影响,观测到的电离层闪烁起始时间稍早于扩展F。扩展F结束时间比电离层闪烁结束时间有所滞后,分析认为,在低纬电离层不均匀体的消亡阶段,1km以下中小尺度的不均匀体首先消失。Using spread F observations and GPS Ll-band ionospheric scintillation obser- vations recorded by ionosonde and GPS Ll-band Ionospheric Scintillation monitor respective- ly in Haikou region during August 2012 and July 2013, we carried out correlation analysis on the occurrence time of each other. It＇s found that there is a good correlation between the oc- currences of Spread F and GPS Ll-band ionospheric scintillation. The correlation coefficient is 0.95. Due to development and evolution characteristics of low-latitude ionospheric irregularities during solar maximum and different observing modes of equipments, the average starting time of GPS ionospheric scintillations is a little earlier than that of Spread F, and the average end time of the latter is somewhat lagged. Analysis from the statistical results also showed that small scale irregularities less than 1km died off firstly in the decay phase of iono- spheric irregularities.

关 键 词：扩展F 电离层闪烁 不均匀体 相关分析 

分 类 号：TN966[电子电信—信号与信息处理]