Ambient Seismic Noise Tomography of a Loess High Bank at Dunaszekcső (Hungary)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F16%3A00464924" target="_blank" >RIV/68145535:_____/16:00464924 - isvavai.cz</a>

Result on the web

<a href="http://link.springer.com/article/10.1007/s00024-016-1304-1" target="_blank" >http://link.springer.com/article/10.1007/s00024-016-1304-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00024-016-1304-1" target="_blank" >10.1007/s00024-016-1304-1</a>

Result language

angličtina

Original language name

Ambient Seismic Noise Tomography of a Loess High Bank at Dunaszekcső (Hungary)

Original language description

Loess high banks along the right side of the Danube in Hungary are potential subjects of landslides. Small scale ambient seismic noise tomography was used at the Dunaszekcső high bank. The aim of the study was to map near surface velocity anomalies since we assume that the formation of tension cracks—which precede landslides—are represented by low velocities. Mapping Rayleigh wave group velocity distribution can help to image intact and creviced areas and identify the most vulnerable sections. The study area lies at the top of the Castle Hill of Dunaszekcső, which was named after Castellum Lugio, a fortress of Roman origin. The presently active head scarp was formed in April 2011, and our study area was chosen to be at its surroundings. Cross-correlation functions of ambient noise recordings were used to retrieve the dispersion curves, which served as the input of the group velocity tomography. Phase cross-correlation and time-frequency phase weighted stacking was applied to calculate the cross-correlation functions. The average Rayleigh wave group velocity at the loess high bank was found to be 171 ms1. The group velocity map at a 0.1 s period revealed a low-velocity region, whose location coincides with a highly creviced area, where slope failure takes place along a several meter wide territory. Another low velocity region was found, which might indicate a previously unknown loosened domain. The highest velocities were observed at the supposed remnants of Castellum Lugio.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DC - Seismology, volcanology and Earth structure

OECD FORD branch

—

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Pure and Applied Geophysics

ISSN

0033-4553

e-ISSN

—

Volume of the periodical

173

Issue of the periodical within the volume

8

Country of publishing house

CH - SWITZERLAND

Number of pages

16

Pages from-to

2913-2928

UT code for WoS article

000381406600022

EID of the result in the Scopus database

2-s2.0-84981164258