Long-baseline quasi-real time kinematic GPS data analysis for early tsunami warning
نویسندگان
چکیده
منابع مشابه
Kalman-filter-based Gps Ambiguity Resolution for Real-time Long-baseline Kinematic Applications
Resolving the GPS carrier-phase ambiguities has been a continuing challenge for sub-centimeter-level high-precision GPS positioning. In kinematic and long-baseline applications, the challenge turns out to be even greater due to the substantial problems in the observation time series – the decorrelation of biases, the quasi-random behavior of multipath and the correct interpretation of receiver ...
متن کاملOperational real - time GPS - enhanced earthquake early warning
Moment magnitudes for large earthquakes (Mw ≥7.0) derived in real time from near-field seismic data can be underestimated due to instrument limitations, ground tilting, and saturation of frequency/amplitude-magnitude relationships. Real-time high-rate GPS resolves the buildup of static surface displacements with the S wave arrival (assuming nonsupershear rupture), thus enabling the estimation o...
متن کاملGPS for real-time earthquake source determination and tsunami warning systems
We identify the key design aspects of a GPS-based system (and in the future, GNSS-based systems) that could contribute to real-time earthquake source determination and tsunami warning systems. Our approach is based on models of both transient and permanent displacement of GPS stations caused by large earthquakes, while considering the effect of GPS errors on inverted earthquake source parameter...
متن کاملApplication of real‐time GPS to earthquake early warning
[1] We explore the use of real‐time high‐rate GPS displacement data for earthquake early warning using 1 Hz displacement waveforms from the April 4, 2010, Mw 7.2 El Mayor‐Cucapah earthquake. We compare these data to those provided by the broadband velocity and accelerometer instrumentation of the Southern California Seismic Network. The unique information provided by the GPS‐based displacement ...
متن کامل22 Earthquake Early Warning with GPS Data
The combined use of seismic and geodetic observations is now a common practice for finite-fault modeling and seismic source parametrization. With the advent of highrate 1Hz GPS stations the seismological community has recently begun looking at GPS data as a valid complement to the seismic-based methodologies for Earthquake Early Warning (EEW). In the standard approaches to early warning, the in...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Earth, Planets and Space
سال: 2008
ISSN: 1880-5981
DOI: 10.1186/bf03352877