Studies of Low Latitude CIT Ionospheric Images

[摘要]Yeh等。该奖项将支持电离层计算机断层扫描技术的持续发展，通过无线电接收器网络将该技术应用于TRANSIT卫星无线电信号的相位观测分析。这一分析的结果将是一组电离层电子密度在大约20度纬度范围内的低纬度分布的二维图像。每24小时可获得大约15个这样的图像。将对这些结果进行检验，以研究每个季节中典型日的平均日行为，以建立太阳活动最小条件下的基线行为。与日食、地震、火山爆发等特殊事件相关的非典型行为对应的图像将被检查和解释，以提高对这些情况下电离层行为的理解。使用这种技术的应用程序构建的所有图像都可以通过Web访问的方式提供。

Abstract Yeh et al. ATM-0003418This award would support the continued development of the technique of computerized ionospheric tomography through application of this technique to the analysis of phase observations of radio signals from the TRANSIT satellites by a network of radio receivers. The results of this analysis would be a collection of 2-dimensional images of the low latitude distribution of ionospheric electron density over a latitudinal swath of about 20 degrees. About 15 such images are available for each 24 hour period. These results would be examined to study the average daily behavior for a typical day in each season to establish a baseline behavior during solar minimum conditions. Images corresponding to atypical behavior relating to special events such as solar eclipses, earthquakes, volcanic eruptions would be examined and interpreted to improve the understanding of ionospheric behavior under these circumstances. All images constructed with applications of this technique would be made available through the means of Web access.