GPS实时监测和预报电离层电子含量  

Monitoring and Predicting the Real Time Ionoshperic Electron Content by Means of GPS

作　　者：金双根[1] J.Wang 章红平[1] 朱文耀[1] 

机构地区：[1]中国科学院上海天文台,上海200030 [2]School of Surveying and Spatial Information Systems,University of New South Wales,Sydney,Australia

出　　处：《天文学报》2004年第2期213-219,共7页Acta Astronomica Sinica

基　　金：国家自然科学基金(40174009)

摘　　要：GPS能高精度地实时监测电离层总电子含量(TEC)变化,对纠正单频GPS接收机电离层延迟和监测电离层活动及其所反映的太阳活动规律具有重要意义。上海地区GPS综合应用网的建立,为监测长江三角洲地区电离层变化提供了宝贵的资料,利用这些双频GPS接收机的连续观测资料,可近实时地监测和预报该地区电离层总电子含量,其内外符精度和外推预报30分钟的精度均优于0.4m。GPS can monitor the variations of the Total Electron Content (TEC) with a high precision, which is importantly significant to correct the ionospheric delay for single- frequent GPS receivers, to monitor the activity of ionosphere and to reveal active rule of the Sun. The establishment of the Shanghai integration GPS network provides valuable data for monitoring the real-time ionospheric variation of the Yangtse Rive delta region. The extrapolated precise in 30 minutes and the internal and external precise of TEC from Grid Ionospheric Models are all smaller than 0.4m.

关 键 词：天体测量学 电离层 电子含量 GPS 太阳活动规律 

分 类 号：P421.34[天文地球—大气科学及气象学]