Ionosphere and Upper Atmosphere
Nighttime medium-scale traveling ionospheric disturbances detected by network GPS receivers in Taiwan
Article first published online: 31 DEC 2008
Copyright 2008 by the American Geophysical Union.
Journal of Geophysical Research: Space Physics (1978–2012)
Volume 113, Issue A12, December 2008
How to Cite
2008), Nighttime medium-scale traveling ionospheric disturbances detected by network GPS receivers in Taiwan, J. Geophys. Res., 113, A12316, doi:10.1029/2008JA013250., , , , , , and (
- Issue published online: 31 DEC 2008
- Article first published online: 31 DEC 2008
- Manuscript Accepted: 6 NOV 2008
- Manuscript Revised: 28 SEP 2008
- Manuscript Received: 3 APR 2008
- GPS phase fluctuations
 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 ∣ΔTEC/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.