电离层异常原因分析与建模  

The Cause Analysis and Modeling of Ionosphere Anomalies

作　　者：孟范伟[1] 郭英[1,2] 刘振[1] 

机构地区：[1]山东科技大学测绘科学与工程学院,山东青岛266510 [2]山东科技大学海岛(礁)测绘技术国家测绘局重点实验室,山东青岛266510

出　　处：《测绘与空间地理信息》2014年第1期215-218,共4页Geomatics & Spatial Information Technology

摘　　要：分析了地震、磁暴、太阳耀斑等自然现象引发电离层异常的物理机制,并总结了电离层异常的特点。针对电离层中电子分布受地磁、太阳热辐射和地壳变动等影响较大,基于抛物层和赤道双峰模型建立了电子密度呈高斯型分布的电离层异常模型,为进一步研究电离层异常的耦合机制提供了依据。This paper analyzes the physical mechanism of ionospheric anomalies caused by natural phenomena such as earthquakes, storms, solar flares and summarizes the characteristics of ionospheric anomalies. For the phenomenon that the electron distribution in the ionosphere is greatly affected by geomagnetic, solar heat radiation and changes in the earth＇s crust, based on the parabolic layers and equatorial bimodal model, the ionosphere anomalies model that the electron density is Gaussian distribution is established to pro- vide a basis for further study on the coupling mechanism of the ionosphere anomalies.

关 键 词：地震 太阳耀斑 F2层的临界频率f0F2 TEC 

分 类 号：P22[天文地球—大地测量学与测量工程]