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Temporal point positioning approach for real‐time GNSS seismology using a single receiver
Author(s) -
Li Xingxing,
Ge Maorong,
Guo Bofeng,
Wickert Jens,
Schuh Harald
Publication year - 2013
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1002/2013gl057818
Subject(s) - gnss applications , precise point positioning , geodesy , geology , seismology , moment magnitude scale , waveform , global positioning system , multipath propagation , slip (aerodynamics) , satellite system , satellite , inversion (geology) , displacement (psychology) , remote sensing , computer science , tectonics , telecommunications , aerospace engineering , engineering , psychology , radar , channel (broadcasting) , geometry , mathematics , scaling , psychotherapist
High‐rate Global Navigation Satellite Systems (GNSS) has an increasing number of applications in geohazard monitoring. GNSS‐derived displacements can provide important information for magnitude estimation and fault slip inversion, which is critical for seismic and tsunamigenic hazard mitigation. In this paper, we propose a new approach to quickly capture coseismic displacements with a single GNSS receiver in real time. The new approach can overcome the convergence problem of precise point positioning, and also avoids the integration process of the variometric approach. Using the results of the 2011 Tohoku‐Oki earthquake, it is demonstrated that the proposed method can provide accurate displacement waveforms and permanent coseismic offsets at an accuracy of few centimeters, and can also reliably recover the moment magnitude and fault slip distribution.