Topographical criteria for the occurrence of landslides causing debris flows in the 2017 torrential rain in northern Kyushu, Japan
In the volcanic rock fields around Hita City, 19 landslides occurred in the 2017 torrential rains in northern Kyushu, 11 of which triggered debris flows. In order to mitigate debris flows disasters caused by landslides, it is important to assess the points where landslides are most likely to occur....
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/52/e3sconf_dfhm82023_05017.pdf |
| _version_ | 1797740275487997952 |
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| author | Ohta Takehiro Hamamoto Kanako Eguchi Seiya |
| author_facet | Ohta Takehiro Hamamoto Kanako Eguchi Seiya |
| author_sort | Ohta Takehiro |
| collection | DOAJ |
| description | In the volcanic rock fields around Hita City, 19 landslides occurred in the 2017 torrential rains in northern Kyushu, 11 of which triggered debris flows. In order to mitigate debris flows disasters caused by landslides, it is important to assess the points where landslides are most likely to occur. Therefore, topographic profiles of landslide and non-landslide slopes were calculated from digital elevation models obtained before the disaster. The results indicate that there is a topographic criterion for landslide occurrence in the relationship between the topographic position index (TPI) and the tangent Laplacian. |
| first_indexed | 2024-03-12T14:10:07Z |
| format | Article |
| id | doaj.art-e1291927e5d04d3b83f3d2f0fbea9d0c |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-03-12T14:10:07Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-e1291927e5d04d3b83f3d2f0fbea9d0c2023-08-21T09:02:30ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014150501710.1051/e3sconf/202341505017e3sconf_dfhm82023_05017Topographical criteria for the occurrence of landslides causing debris flows in the 2017 torrential rain in northern Kyushu, JapanOhta Takehiro0Hamamoto Kanako1Eguchi Seiya2Yamaguchi UniversityYamaguchi UniversityYamaguchi UniversityIn the volcanic rock fields around Hita City, 19 landslides occurred in the 2017 torrential rains in northern Kyushu, 11 of which triggered debris flows. In order to mitigate debris flows disasters caused by landslides, it is important to assess the points where landslides are most likely to occur. Therefore, topographic profiles of landslide and non-landslide slopes were calculated from digital elevation models obtained before the disaster. The results indicate that there is a topographic criterion for landslide occurrence in the relationship between the topographic position index (TPI) and the tangent Laplacian.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/52/e3sconf_dfhm82023_05017.pdf |
| spellingShingle | Ohta Takehiro Hamamoto Kanako Eguchi Seiya Topographical criteria for the occurrence of landslides causing debris flows in the 2017 torrential rain in northern Kyushu, Japan E3S Web of Conferences |
| title | Topographical criteria for the occurrence of landslides causing debris flows in the 2017 torrential rain in northern Kyushu, Japan |
| title_full | Topographical criteria for the occurrence of landslides causing debris flows in the 2017 torrential rain in northern Kyushu, Japan |
| title_fullStr | Topographical criteria for the occurrence of landslides causing debris flows in the 2017 torrential rain in northern Kyushu, Japan |
| title_full_unstemmed | Topographical criteria for the occurrence of landslides causing debris flows in the 2017 torrential rain in northern Kyushu, Japan |
| title_short | Topographical criteria for the occurrence of landslides causing debris flows in the 2017 torrential rain in northern Kyushu, Japan |
| title_sort | topographical criteria for the occurrence of landslides causing debris flows in the 2017 torrential rain in northern kyushu japan |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/52/e3sconf_dfhm82023_05017.pdf |
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