Ionospheric Disturbances Triggered by the Mw7.6 Earthquake off the Coast of El Salvador on 13 January 2001

A network of five ground-based receivers of the global positioning sys- tem (GPS) was use to detect seismo-ionospheric disturbances in the total elec- tron content (TEC) triggered by the 13 January 2001 El Salvador Mw 7.6 earthquake. We apply least square fitted analysis as well as beam forming and...

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Bibliographic Details
Published in:Terrestrial, Atmospheric and Oceanic Sciences
Main Authors: Ting-Kuo Jung, Jann-Yenq Liu, Ho-Fang Tsai, Bor-Shouh Huang, Cheng-Horng Lin, Shui-Beih Yu, Yih-Shiung Yeh
Format: Article
Language:English
Published: Springer 2006-01-01
Subjects:
Ionosphere
GPS TEC
Space seismometer
Beam forming method
Ray tracing method
Online Access: http://tao.cgu.org.tw/images/attachments/v172p345.pdf
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Summary:A network of five ground-based receivers of the global positioning sys- tem (GPS) was use to detect seismo-ionospheric disturbances in the total elec- tron content (TEC) triggered by the 13 January 2001 El Salvador Mw 7.6 earthquake. We apply least square fitted analysis as well as beam forming and ray tracing methods to analyze the GPS TECs. Results show that the average speeds of the seismo-ionospheric disturbances traveling in the up- per atmosphere and ionosphere lie between 360 and 570 m s−1 , and the disturbance origins on the ground derived by the two methods are near the epicenter reported by the U.S. Geological Survey (USGS).
ISSN:1017-0839
2311-7680

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