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电离层TEC(Total Electron Content)扰动与多种扰动源相关联.2009年6至7月期间存在地震和日全食的扰动源.利用广州地区GPS监测网在2009年6至7月连续监测到的TEC数据,通过采用前15天数据的滑动窗口对数据进行处理,从时间序列和空间分布两方面分析了华南地区电离层TEC扰动特征.结果显示,2009年6至7月华南地区电离层TEC扰动和该时期发生的地震以及日全食事件可能有关联;2009年7月多个地震发生引起的电离层扰动特征为,震前出现的是正异常,发震当天或震后有可能是正异常,也有可能是负异常;7月22日日全食当天TEC扰动为正异常,推测该正异常是地磁活动、地震活动及日全食综合效应的结果.
Total Electron Content perturbations are associated with a variety of perturbation sources There are disturbances of earthquakes and total solar eclipses between June and July 2009. The continuous monitoring of the total electron content from June to July 2009 TEC data, the perturbation characteristics of ionospheric TEC in South China were analyzed from time series and spatial distribution by using the sliding window of the first 15 days of data processing. The results show that the disturbance of ionospheric TEC in South China from June to July in 2009 Which may be related to earthquakes and total solar eclipse events occurring in this period. In July 2009, the ionospheric disturbance caused by multiple earthquakes was characterized by a positive anomaly before the earthquake, positive anomalies on the day of the earthquake or after the earthquake, and possibly Is a negative anomaly; TEC disturbance is positive anomaly on the day of total solar eclipse on July 22, suggesting that the positive anomaly is the result of geomagnetic activity, seismic activity and total solar eclipse effect.