TY - JOUR
T1 - 大規模崩塌地動訊號自動辨識技術開發與應用
AU - Lin, Guan Wei
AU - Lee, Shian Kuen
AU - Chien, Yi Feng Chang
N1 - Publisher Copyright:
© 2020, Chinese Soil and Water Conservation Society. All right reserved.
PY - 2020/9/1
Y1 - 2020/9/1
N2 - Landslide-generated seismic waves (landslide-quakes), exhibiting distinctive waveforms and frequency characteristics, can be recorded by nearby seismometers. Implementing an automatic classifier for landslidequakes could help provide objective and accurate initiation times of landslides with efficiency. This study collected and analyzed 214 large scale landslide seismic records from the Broadband Array in Taiwan for Seismology (BATS). In addition, equal numbers of earthquake and noise signals were also incorporated. The 642 seismic signals and time information were carefully examined to create an automatic landslide-quake classifier. By validating the signal attributes of the landslide, earthquake, and noise events, specifically in the time and frequency domains, it was shown that the proposed classifier can reach an accuracy of 91.3%. To further evaluate the applicability of the automatic classifier, landslide-quakes generated during the devastating Typhoon Morakot (2009) and Typhoon Soudelor (2015) were also verified, showing that the sensitivity of the classifier is higher than 98%.
AB - Landslide-generated seismic waves (landslide-quakes), exhibiting distinctive waveforms and frequency characteristics, can be recorded by nearby seismometers. Implementing an automatic classifier for landslidequakes could help provide objective and accurate initiation times of landslides with efficiency. This study collected and analyzed 214 large scale landslide seismic records from the Broadband Array in Taiwan for Seismology (BATS). In addition, equal numbers of earthquake and noise signals were also incorporated. The 642 seismic signals and time information were carefully examined to create an automatic landslide-quake classifier. By validating the signal attributes of the landslide, earthquake, and noise events, specifically in the time and frequency domains, it was shown that the proposed classifier can reach an accuracy of 91.3%. To further evaluate the applicability of the automatic classifier, landslide-quakes generated during the devastating Typhoon Morakot (2009) and Typhoon Soudelor (2015) were also verified, showing that the sensitivity of the classifier is higher than 98%.
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U2 - 10.29417/JCSWC.202009_51(3).0001
DO - 10.29417/JCSWC.202009_51(3).0001
M3 - Article
AN - SCOPUS:85094682659
SN - 0255-6073
VL - 51
SP - 85
EP - 94
JO - Journal of Chinese Soil and Water Conservation
JF - Journal of Chinese Soil and Water Conservation
IS - 3
ER -