TY - JOUR
T1 - Landslides and precipitation characteristics during the typhoon Lionrock in Iwate prefecture, Japan
AU - Chaithong, Thapthai
AU - Komori, Daisuke
AU - Sukegawa, Yuto
AU - Touge, Yoshiya
AU - Mitobe, Yuta
AU - Anzai, Satoshi
N1 - Funding Information:
This study was supported by Japan Society of Civil Engineering, The Society for the Promotion of Construction Engineering, and The Social Implementation Program on Climate Change Adaptation technology (SI-CAT). The authors gratefully acknowledge the Geotechnical Laboratory, Department of civil and environmental engineering, Graduate School of Engineering, Tohoku University, Iwate prefecture, and Geospatial Information Authority of Japan, and National Institute of Informatics of Japan for information and equipment. The authors also gratefully thank Mr. Hiroaki Kabuki for the good suggestion about the laboratory test.
Publisher Copyright:
© 2018, Int. J. of GEOMATE.
PY - 2018
Y1 - 2018
N2 - In August 2016, the typhoon Lionrock made landfall on Japan's northeastern coast and caused floods and landslides. Lionrock brought heavy precipitation to Japan, which Shimotokusari station (33201) recorded 24-hour rainfall amount over 200 mm and the peak rainfall intensity was approximately 65 mm/hr. The total cost of damage within the Iwate prefecture is over 700 million dollars, moreover, 20 lives were lost and 4 people missing. Therefore, the objective of this paper is to present the results of the post-disaster investigation, including, the back-analysis of landslides and precipitation due to the typhoon Lionrock. The rainfall and landslides relationship is significantly important for rainfall intensity-duration threshold. For this typhoon, the empirical rainfall intensity-duration threshold has been derived as I = 20.24D-0.33. The slope failure could be broadly categorized into the debris flow, surficial erosion, and soil slide, moreover, occurred on slopes ranging from 19 to 58 degrees.
AB - In August 2016, the typhoon Lionrock made landfall on Japan's northeastern coast and caused floods and landslides. Lionrock brought heavy precipitation to Japan, which Shimotokusari station (33201) recorded 24-hour rainfall amount over 200 mm and the peak rainfall intensity was approximately 65 mm/hr. The total cost of damage within the Iwate prefecture is over 700 million dollars, moreover, 20 lives were lost and 4 people missing. Therefore, the objective of this paper is to present the results of the post-disaster investigation, including, the back-analysis of landslides and precipitation due to the typhoon Lionrock. The rainfall and landslides relationship is significantly important for rainfall intensity-duration threshold. For this typhoon, the empirical rainfall intensity-duration threshold has been derived as I = 20.24D-0.33. The slope failure could be broadly categorized into the debris flow, surficial erosion, and soil slide, moreover, occurred on slopes ranging from 19 to 58 degrees.
KW - Critical rainfall
KW - Intensity-duration threshold
KW - Landslides
KW - Rainfall
KW - Tropical cyclone
KW - Typhoon
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U2 - 10.21660/2018.44.7132
DO - 10.21660/2018.44.7132
M3 - Article
AN - SCOPUS:85041216509
SN - 2186-2982
VL - 14
SP - 109
EP - 114
JO - International Journal of GEOMATE
JF - International Journal of GEOMATE
IS - 44
ER -