Potential of precise point positioning using 1 Hz GPS data for detection of seismic-related displacements.

Autor:	Hefty, Ján, 1950-
Další autoři:	Gerhátová, Ľubomíra, 1972-
Jazyk:	angličtina
Předmět:	seizmicita zemětřesení seismicity earthquake články journal articles high-rate GPS GPS seismology precise point positioning arthquake re lated displacements
Druh dokumentu:	Non-fiction
ISSN:	1214-9705
Abstrakt:	Abstract: The Precise Point Positioning (PPP) analysis technique adapted for monitoring of moderate high-rate coordinate variations from GPS observations is applied for measuring actual displacements related to earthquakes. Two approaches are examined: kinematic PPP which is suitable for larger displacements and analysis of residuals from quasi-static PPP which is suitable for detection of minor displacements. Results from simulated horizontal movements of GPS antenna as well as analyses of 1 Hz GPS data from M 9.0 Sendai earthquake, M 6.3 L’Aquila earthquake and M 4.3 Tatabanya earthquake are shown. Our experiments proved the ability to measure dynamic seismic-related short-term coordinate variations at sub-centimetre level with PPP and to detect both strong and weak seismic signals using GPS satellites observations.
Databáze:	Katalog Knihovny AV ČR
Externí odkaz:	Plný text