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http://dx.doi.org/10.5467/JKESS.2020.41.6.658

Effects of Meteorological Variations and Sensor Burial Depths on HVSR Analysis  

Kang, Su Young (Institute of Geologic Hazard & Industrial Resources, Pusan National University)
Kim, Kwang-Hee (Department of Geological Science, Pusan National University)
Kim, Doyoung (Institute of Geologic Hazard & Industrial Resources, Pusan National University)
Jeon, Byeong-Uk (Institute of Geologic Hazard & Industrial Resources, Pusan National University)
Lee, Jin-Wook (Institute of Geologic Hazard & Industrial Resources, Pusan National University)
Publication Information
Journal of the Korean earth science society / v.41, no.6, 2020 , pp. 658-669 More about this Journal
Abstract
The horizontal-to-vertical spectral ratio (HVSR) analysis is conducted to estimate the site amplification effect and the thickness of the sedimentary layer beneath the measurement site. We investigated the effects of meteorological variations (wind and precipitation rate) and sensor burial depths on HVSR analysis. The HVSR results were unstable when seismographs were exposed on the ground. The HVSR results of ambient noise data measured under strong winds were also unstable. It is recommended to measure the ambient noise at wind speeds of <3 m s-1. Stable HVSR results were obtained when seismographs were buried, regardless of the precipitation rates. The results of this study provide the best observations and optimal weather conditions required to acquire accurate and reliable HVSR results.
Keywords
HVSR; wind speed; precipitation; background noise;
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Times Cited By KSCI : 5  (Citation Analysis)
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