Naslov
An Attempt Of Earthquake Precursor & Deformation Monitoring By Means Of Real - Time High Rate GPS
(An Attempt Of Earthquake Precursor & Deformation An Attempt Of Earthquake Precursor & Deformation Monitoring By Means Of Real - Time High Rate GPS)

Autori
Marjanović Kavanagh, Radovan ; Becker, Matthias

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
13^th World Conference on Earthquake Engineering 13wcee - Vancouver , Canada / - , 2004

Skup
13^th World Conference on Earthquake Engineering

Mjesto i datum
Vancouver, Kanada, 01.08.2004. - 06.08.2004

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Croatia; Zagreb; Mount Medvednica; earthquake precursor; deformation monitoring; GPS; kinematic applications

Sažetak
Until recently deformation monitoring was usually done by periodic geodetic position measurements of discrete points, which served for the determination of time dependent vectors. Alternative techniques with continuous data even in real-time using different electronic sensors, like extensometers or tilt meters, do not give the complete information about deformations with respect to a large scale reference frame. The only solution was a combination of different measuring techniques, methods and instruments, whereas a complete integration of all sensors into one consistent system is hardly possible. In the last few years GPS instrumentation evolved to a strong and accurate measuring tool. The modern GPS instrumentation allows high precision kinematic applications even in real-time. Additionally, a sampling rate of typical more than 5 Hz allows the use of the system even for applications with high velocities and accelerations. The major advantage of these systems is that they give 3D coordinate information down to millimeter resolution. This paper describes the conceptual design of the installation of a real-time kinematic GPS array on known points (where co-located measurements with other techniques took place) in a region near Zagreb, the capital city of Croatia. This region is known as a local earthquake hazardous region where a series of earthquakes took place during the past. Most of these earthquakes originated in the Earth's crust in depths of about 10-20 km. This very active seismic zone crosses the Mount Medvednica situated at the northern part of Zagreb. The new GPS real-time measuring technique will provide a monitoring and warning capability, which could be very helpful in hazard mitigation. The combination with earlier data of these points with continuous measurements will help to determine the long-term deformation of the local Earth's surface.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Geodezija

POVEZANOST RADA