Temporal point positioning approach for real‐time GNSS seismology using a single receiver

[1] 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.

[1]  J. Zumberge,et al.  Precise point positioning for the efficient and robust analysis of GPS data from large networks , 1997 .

[2]  Yusaku Ohta,et al.  Quasi real‐time fault model estimation for near‐field tsunami forecasting based on RTK‐GPS analysis: Application to the 2011 Tohoku‐Oki earthquake (Mw 9.0) , 2012 .

[3]  Maorong Ge,et al.  Rapid re-convergences to ambiguity-fixed solutions in precise point positioning , 2010 .

[4]  Yehuda Bock,et al.  Demonstration of Earthquake Early Warning Using Total Displacement Waveforms from Real-time GPS Networks , 2009 .

[5]  Maorong Ge,et al.  A Novel Real-time Precise Positioning Service System: Global Precise Point Positioning With Regional Augmentation , 2012 .

[6]  Pierre Héroux,et al.  Precise Point Positioning Using IGS Orbit and Clock Products , 2001, GPS Solutions.

[7]  J. Kouba Measuring Seismic Waves Induced by Large Earthquakes with GPS , 2003 .

[8]  Chris Rizos,et al.  The International GNSS Service in a changing landscape of Global Navigation Satellite Systems , 2009 .

[9]  Maorong Ge,et al.  A method for improving uncalibrated phase delay estimation and ambiguity-fixing in real-time precise point positioning , 2013, Journal of Geodesy.

[10]  Yehuda Bock,et al.  Detection of arbitrarily large dynamic ground motions with a dense high‐rate GPS network , 2004 .

[11]  H. Schuh,et al.  Global Mapping Function (GMF): A new empirical mapping function based on numerical weather model data , 2006 .

[12]  Xiaohong Zhang,et al.  Satellite clock estimation at 1 Hz for realtime kinematic PPP applications , 2011 .

[13]  Paul Bodin,et al.  Using 1-Hz GPS Data to Measure Deformations Caused by the Denali Fault Earthquake , 2003, Science.

[14]  Urs Hugentobler,et al.  The International GNSS Real-Time Service , 2012 .

[15]  Mattia Crespi,et al.  GPS Near-Real-Time Coseismic Displacements for the Great Tohoku-oki Earthquake , 2013, IEEE Geoscience and Remote Sensing Letters.

[16]  Maorong Ge,et al.  Instant tsunami early warning based on real-time GPS – Tohoku 2011 case study , 2013 .

[17]  Hans-Peter Plag,et al.  Rapid determination of earthquake magnitude using GPS for tsunami warning systems , 2006 .

[18]  T. Wright,et al.  Real‐time, reliable magnitudes for large earthquakes from 1 Hz GPS precise point positioning: The 2011 Tohoku‐Oki (Japan) earthquake , 2012 .

[19]  Paul Collins,et al.  Precise Point Positioning for Real-time Determination of Co-Seismic Crustal Motion , 2009 .

[20]  Richard M. Allen,et al.  Application of real‐time GPS to earthquake early warning , 2011 .

[21]  C. Bassin,et al.  The Current Limits of resolution for surface wave tomography in North America , 2000 .

[22]  Augusto Mazzoni,et al.  Real‐time GPS seismology with a stand‐alone receiver: A preliminary feasibility demonstration , 2010 .

[23]  Maorong Ge,et al.  The 2011 Mw 9.0 Tohoku Earthquake: Comparison of GPS and Strong‐Motion Data , 2013 .

[24]  Maorong Ge,et al.  Real‐time high‐rate co‐seismic displacement from ambiguity‐fixed precise point positioning: Application to earthquake early warning , 2013 .

[25]  Zhang Xiaohong,et al.  Instantaneous re-initialization in real-time kinematic PPP with cycle slip fixing , 2012, GPS Solutions.