The Effects of Sumatra-Andaman Earthquake on Total Ionospheric Electron Content (TEC) and Ionospheric Scintillation of GPS Signal in Thailand

Author

Theerapatpaiboon, P. ; Leelaruji, N. ; Hemmakorn, N. ; Supnithi, P.

Author_Institution

Fac. of Eng., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok

fYear

0

fDate

0-0 0

Firstpage

1183

Lastpage

1186

Abstract

This paper presents the effects of Sumatra-Andaman earthquake (26 December 2004) on the total ionospheric electron content (TEC) by using the TEC meter (JAVAD) installed at KMITL. From the results, we found that the total ionospheric electron content enhancement at the time of this earthquake is higher than other days about 7 TEC units. Furthermore, the study includes the effect of this phenomenon on GPS signal (1575.45 MHz) by employing S₄ index and sigma_phi(60sec) to identify the severity of amplitude scintillation and phase scintillation, respectively. From the observation, we can conclude that TEC variation is the cause of ionospheric scintillation leading to the position error on GPS about 8 meters

Keywords

Global Positioning System; earthquakes; ionospheric electromagnetic wave propagation; radiowave propagation; GPS signal; Global Positioning System; KMITL; Sumatra-Andaman earthquake; TEC; Thailand; amplitude scintillation; ionospheric scintillation; phase scintillation; total ionospheric electron content; Atmosphere; Earthquake engineering; Electrons; Global Positioning System; Information technology; Ionosphere; Java; Satellite broadcasting; Satellite communication; Signal processing; Earthquake; GPS signal; Ionospheric scintillation; Total ionospheric electron content (TEC);

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communications and Signal Processing, 2005 Fifth International Conference on

Conference_Location

Bangkok

Print_ISBN

0-7803-9283-3

Type

conf

DOI

10.1109/ICICS.2005.1689241

Filename

1689241