Nighttime medium-scale traveling ionospheric disturbances detected by network GPS receivers in Taiwan

C. C. Lee, Y. A. Liou, Y. Otsuka, F. D. Chu, T. K. Yeh, K. Hoshinoo, K. Matunaga

研究成果: 雜誌貢獻期刊論文同行評審

37 引文 斯高帕斯(Scopus)

摘要

The nighttime medium-scale traveling ionospheric disturbances (MSTIDs) are detected by the network GPS receivers in Taiwan for the first time. The two-dimensional mapping technique (a spatial resolution of 0.05° × 0.05° in latitude and longitude with 5×5 pixels smoothing) is applied on the data of TEC perturbations (TECp) and GPS phase fluctuations (δTEC/min). The results show that the MSTIDs move southwestward to latitude of 20.5°N with a horizontal velocity between 100 and 160 m/s and a wavelength of about 500 km. The wavefronts of the MSTIDs are aligned along the northwest-southeast direction. Furthermore, the greater |ATEC/min| values are corresponding to the wave peak and trough of TECp. This coincidence indicates that the MSTIDs play an important role for the generation of F region irregularities in the low-latitude ionosphere.

原文???core.languages.en_GB???
文章編號A12316
期刊Journal of Geophysical Research: Space Physics
113
發行號12
DOIs
出版狀態已出版 - 1 12月 2008

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