基于GPS的电离层行扰探测  

TID Detect Based on the GPS

作　　者：徐红漫[1] 陈汉林[1] 

机构地区：[1]中南民族大学电子信息工程学院,武汉430074

出　　处：《中南民族大学学报（自然科学版）》2004年第3期47-49,共3页Journal of South-Central University for Nationalities：Natural Science Edition

基　　金：国家自然科学基金资助项目 (4 0 1340 2 0 )

摘　　要：在基于电离层薄层模型的情况下 ,利用 GPS探测技术研究了电离层在 2 0 0 3年 3月 31日发生扰动的事件 .研究结果表明 :在 2 0 0 3年 3月 31日期间发生了两类大尺度电离层行扰 (TID) ,一类可能是由于磁暴期间极光区极光电急流的焦耳加热所激发的 ,其扰动幅度约为 1.4 TECU,扰动速度约为 35 0 m/ s,扰动主周期约为 4 0 m in,基本是向赤道方向传播的 ;另一类可能是由东南沿海的热带风暴所激发的 ,其扰动幅度为 1.11TECU,扰动速度为 4 79m/ s,扰动主周期约为 4 0 m in。Under the condition of the ionosphere lamina model, the paper studies the ionosphere disturbance at March 31, 2003 by GPS detect technology. The study indicates that there happened two kinds of TIDs at March 31, 2003 in large scale. The one may be brought by Joule heating of aurora electrical current at aurora zone at the period of magnetic storm with the disturbance amplitude of 1.4 TECU, disturbance speed of 350m/s and main disturbance cycle of 40 minutes, and its disturbance direction is to equator-ward. The other was produced possibly by topic storm along south-east sea zone of China, its disturbance is 1.11 TECU, disturbance speed 479m/s, main disturbance cycle 40 minutes, and promulgation along north-west ward.

关 键 词：GPS技术 电离层 电离层行扰 

分 类 号：P208[天文地球—地图制图学与地理信息工程] TP273[天文地球—测绘科学与技术]