Proposal of Hazard Connectivity Index for debris flow disaster management
The concept of connectivity and its index have been widely discussed and applied to environmental studies such as ecology, hydrology, geomorphology and hydrosedimentology. Supposing that this concept is very useful also in disaster risk management, we define the hazard connectivity associated to deb...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
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_05012.pdf |
| _version_ | 1797740241540349952 |
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| author | Kobiyama Masato Franck Alessandro Gustavo |
| author_facet | Kobiyama Masato Franck Alessandro Gustavo |
| author_sort | Kobiyama Masato |
| collection | DOAJ |
| description | The concept of connectivity and its index have been widely discussed and applied to environmental studies such as ecology, hydrology, geomorphology and hydrosedimentology. Supposing that this concept is very useful also in disaster risk management, we define the hazard connectivity associated to debris flows as the connectivity degree between the debris flow occurrence (trajectory) and the point of interest (location of house, person, and so on). Based on this definition, the Hazard Connectivity Index (HCI) associated to debris flow is proposed as: HCI = L/(x+L), where x is the shortest distance between the debris flow trajectory and the point of interest; and L is the runout distance of the debris flow or just mass movement. The HCI value varies from 0 to 1, being that its higher value indicates larger hazard condition. The HCI application to one case study showed that it can be useful in the analysis of the debris flow related hazard. |
| first_indexed | 2024-03-12T14:09:37Z |
| format | Article |
| id | doaj.art-60b896703c994779b0ed5054aa4da780 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-03-12T14:09:37Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-60b896703c994779b0ed5054aa4da7802023-08-21T09:02:30ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014150501210.1051/e3sconf/202341505012e3sconf_dfhm82023_05012Proposal of Hazard Connectivity Index for debris flow disaster managementKobiyama Masato0Franck Alessandro Gustavo1Graduate Course of Water Resources and Environmental Sanitation, Hydraulic Research Institute, Federal University of Rio Grande do SulGraduate Course of Water Resources and Environmental Sanitation, Hydraulic Research Institute, Federal University of Rio Grande do SulThe concept of connectivity and its index have been widely discussed and applied to environmental studies such as ecology, hydrology, geomorphology and hydrosedimentology. Supposing that this concept is very useful also in disaster risk management, we define the hazard connectivity associated to debris flows as the connectivity degree between the debris flow occurrence (trajectory) and the point of interest (location of house, person, and so on). Based on this definition, the Hazard Connectivity Index (HCI) associated to debris flow is proposed as: HCI = L/(x+L), where x is the shortest distance between the debris flow trajectory and the point of interest; and L is the runout distance of the debris flow or just mass movement. The HCI value varies from 0 to 1, being that its higher value indicates larger hazard condition. The HCI application to one case study showed that it can be useful in the analysis of the debris flow related hazard.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/52/e3sconf_dfhm82023_05012.pdf |
| spellingShingle | Kobiyama Masato Franck Alessandro Gustavo Proposal of Hazard Connectivity Index for debris flow disaster management E3S Web of Conferences |
| title | Proposal of Hazard Connectivity Index for debris flow disaster management |
| title_full | Proposal of Hazard Connectivity Index for debris flow disaster management |
| title_fullStr | Proposal of Hazard Connectivity Index for debris flow disaster management |
| title_full_unstemmed | Proposal of Hazard Connectivity Index for debris flow disaster management |
| title_short | Proposal of Hazard Connectivity Index for debris flow disaster management |
| title_sort | proposal of hazard connectivity index for debris flow disaster management |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/52/e3sconf_dfhm82023_05012.pdf |
| work_keys_str_mv | AT kobiyamamasato proposalofhazardconnectivityindexfordebrisflowdisastermanagement AT franckalessandrogustavo proposalofhazardconnectivityindexfordebrisflowdisastermanagement |