Measurement of the Characteristics of TIDs Using Small and Regional Networks of GPS Receivers during the Campaign of 17–30 July of 2008

Figure 2

TEC versus UT measured by the Huancayo GPS receivers; red, green, and blue traces represent TEC values from the three receivers; black lines represent the estimated background/unperturbed TEC values. Each of the four panels represents signals from one of four GPS satellites (PRN = 07, 14, 22, and 25).