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  1. 防災科研関係論文

Shallow and Deep-Seated Landslide Differentiation Using Support Vector Machines: A Case Study of the Chuetsu Area, Japan

https://nied-repo.bosai.go.jp/records/5757
https://nied-repo.bosai.go.jp/records/5757
e95125b5-a29f-40a9-b302-5c0de90aec04
Item type researchmap(1)
公開日 2023-05-24
タイトル
言語 ja
タイトル Shallow and Deep-Seated Landslide Differentiation Using Support Vector Machines: A Case Study of the Chuetsu Area, Japan
タイトル
言語 en
タイトル Shallow and Deep-Seated Landslide Differentiation Using Support Vector Machines: A Case Study of the Chuetsu Area, Japan
言語
言語 eng
著者 Dou Jie

× Dou Jie

ja Dou Jie

en Dou Jie

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Paudel Uttam

× Paudel Uttam

ja Paudel Uttam

en Paudel Uttam

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Oguchi Takashi

× Oguchi Takashi

ja Oguchi Takashi

en Oguchi Takashi

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Uchiyama Shoichiro

× Uchiyama Shoichiro

ja Uchiyama Shoichiro

en Uchiyama Shoichiro

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Hayakawa Yuichi S

× Hayakawa Yuichi S

ja Hayakawa Yuichi S

en Hayakawa Yuichi S

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抄録
内容記述タイプ Other
内容記述 Landslides are one of the most destructive geological disasters affecting Japan every year, resulting in huge losses in life and property. Numerous susceptibility studies have been conducted to minimize the risk of landslides; however, most of these studies do not differentiate landslide types. This study examines the differences in landslide depth, volume and the risk imposed between shallow and deep-seated landslide types. Shallow and deep-seated landslide prediction is useful in utilizing emergency resources by prioritizing target areas while responding to sediment related disasters. This study utilizes a 2-m DEM derived from airborne Light detection and ranging (Lidar), geological information and support vector machines (SVMs) to study the 1225 landslides triggered by the M 6.8 Chuetsu earthquake in Japan and the successive aftershocks. Ten factors, including elevation, slope, aspect, curvature, lithology, distance from the nearest geologic boundary, density of geologic boundaries, distance from drainage network, the compound topographic index (CTI) and the stream power index (SPI) derived from the DEM and a geological map were analyzed. Iterated over 10 random instances the average training and testing accuracy of landslide type prediction was found to be 89.2 and 77.8%, respectively. We also found that the overall accuracy of SVMs does not rapidly decrease with a decrease in training samples. The trained model was then used to prepare a map showing probable future landslides differentiated into shallow and deep-seated landslides.
言語 en
書誌情報 ja : TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES
en : TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES

巻 26, 号 2, p. 227-239, 発行日 2015-04
出版者
言語 en
出版者 CHINESE GEOSCIENCE UNION
ISSN
収録物識別子タイプ EISSN
収録物識別子 2311-7680
DOI
関連識別子 10.3319/TAO.2014.12.02.07(EOSI)
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