Ionospheric GNSS Total Electron Content for Tsunami Warning
| Autor: | Yang Yi Sun, Jann-Yenq Liu, Chiyen Lin, Katsumi Hattori, Yu Lin Tsai, Tien Chi Liu, Tso Ren Wu |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Thesaurus (information retrieval)
Tsunami wave 010504 meteorology & atmospheric sciences Meteorology Total electron content business.industry TEC 010502 geochemistry & geophysics Geotechnical Engineering and Engineering Geology Oceanography 01 natural sciences Geophysics GNSS applications Global Positioning System Ionosphere business Geology 0105 earth and related environmental sciences |
| Zdroj: | Journal of Earthquake and Tsunami. 13 |
| ISSN: | 1793-7116 1793-4311 |
| Popis: | Tsunami waves can induce tsunami traveling ionospheric disturbances (TTIDs) of the total electron content (TEC). In this study, we examine the TEC derived by ground-based receivers of the global positioning system (GPS) and identify TTIDs induced by 2004 Indian Ocean tsunami. Simulations of the COMCOT (Cornell multi-grid coupled tsunami) model and analyses of the circle method, the ray-tracing technique, and the beam-forming technique are used to show that TTIDs can be quickly detected and confirmed after the tsunami occurrence. Finally, the ionospheric TEC derived by existing ground-based GNSS (Global Navigation Satellite Systems) receiving stations is demonstrated to be useful to support the tsunami early warning system. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|