The technique of reconstructing Ionospheric TEC Map with the data of single observation station based on the background field using IRI
Owing to the sparse data, the reconstructing Ionospheric Maps are not exact enough, especially in the verges, while using the interpolation methods directly. In order to obtain better TEC Maps, the reconstruction is performed by Inverse Distance Weighting Method and Kriging Method using IRI-2007 as the background field.The tests produce a better performance according to using Cross-validation Method: on one hand, the new technique decreases the errors effectively, especially in the verges;on the other hand, the proportions of absolute errors between 0.25TECU and 0.25TECU at all points in the reconstructing Ionospheric Maps are improved to 70％ and 100％ apart by using the two foregoing methods directly, and the results of statistic show a normal distribution. Duing to the errors of background field and the process of interpolation, the reconstructing maps are not smooth and precise enough, and it can be improved by using successive correction method.
TEC Map IRI-2007 Inverse Distance Weighting Method Kriging Method Cross-validation
WENG Li-bin FANG Han-xian YANG Sheng-gao
Institute of Moteorology,PLA Univ.of Sci.&Tech.,Nanj ing 21101,China
国际会议
南京
英文
30-35
2010-05-08（万方平台首次上网日期，不代表论文的发表时间）