论文部分内容阅读
利用赤道异常北驼峰区深圳站2011年1月到2012年12月监测到的GPS-TEC数据,统计分析了华南地区电离层TEC耗空的时间和空间分布特征.结果表明:TEC耗空随时间、地理经纬度位置等变化呈现出不同的特征.前半夜和在赤道异常北驼峰区域,深度在20 TECU左右的耗空明显和强闪烁(S4≥0.5)相关,在后半夜或在赤道异常北驼峰外边缘区域,存在一些深度小于10 TECU的耗空对应着无闪烁现象发生.统计结果还表明:TEC耗空呈现出季节变化规律,2011和2012年TEC耗空主要出现在春秋分期间,TEC耗空深度主要分布为1~20TECU,持续时间集中在16~30 min,出现的时间主要集中在12:30-15:30UT(20:30-23:30LT),午夜之后TEC耗空活动呈逐渐减弱趋势.
Based on the GPS-TEC data from January 2011 to December 2012 in Shenzhen, an example of the equatorial anomalous North Hump region, the temporal and spatial distribution characteristics of ionospheric TEC depletion in South China were statistically analyzed. The results show that TEC depletion over time , The geographical latitude and longitude location showed different characteristics.Early midnight and in the equatorial anomalous north hump area, the depth of about 20 TECU depletion was significantly associated with strong flicker (S4≥0.5), in the middle of the night or in the equatorial anomalous north hump In the outer edge region, there is some flicker less than 10 TECU depletion, and the results show that the TEC depletion presents the seasonal variation. The TEC depletion in 2011 and 2012 mainly occurs during the spring and autumn period. The TEC consumption The spatial distribution of air depth was mainly from 1 to 20 TECU with a duration of 16-30 min. The appearance time was mainly from 12: 30-15: 30 UT (20: 30-23: 30LT). After midnight, TEC activity decreased gradually trend.