Figure 11
From: Study on co-seismic ionospheric disturbance of Alaska earthquake on July 29, 2021 based on GPS TEC
Time–frequency relationship of different stations for satellites G04, G06, G09, and G16. The red dotted line and the white solid line represent the earthquake occurrence time and the frequency plot corresponding to the wavelet transform below the dSTEC time series plot after filtering of each station, respectively. The figure was plotted by using the Generic Mapping Tools (vision 5.4.4; URL: https://gmt-china.org/).
