Urban Flood Runoff Modeling in Japan: Recent Developments and Future Prospects
Since the 20th century, Japan has experienced a period of very rapid urbanization. Cities have experienced substantial densification and expansion, resulting in gradually elevated flood risk. Urban flooding has also occurred in most large cities in Japan, particularly in Tokyo. In response to this g...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/15/15/2733 |
| _version_ | 1797585975247896576 |
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| author | Akira Kawamura Hideo Amaguchi Jonas Olsson Hiroto Tanouchi |
| author_facet | Akira Kawamura Hideo Amaguchi Jonas Olsson Hiroto Tanouchi |
| author_sort | Akira Kawamura |
| collection | DOAJ |
| description | Since the 20th century, Japan has experienced a period of very rapid urbanization. Cities have experienced substantial densification and expansion, resulting in gradually elevated flood risk. Urban flooding has also occurred in most large cities in Japan, particularly in Tokyo. In response to this growing problem, much effort and resources have been spent on research and development aimed at understanding, simulating, and managing urban flood risk in Japan. The objective of this review is to summarize, discuss, and share key outputs from some of the main research directions in this field, significant parts of which have been uniquely developed in Japan and only published in Japanese. After a general introduction to urban runoff modeling, in the next section, key historical works in Japan are summarized, followed by a description of the situation in Japan with respect to observations of precipitation and water level. Then, the storage function model approach is reviewed, including an extension to urban basins, as well as recent experiments with AI-based emulation in Japanese basins. Subsequently, we review the prospects of detailed hydrodynamic modeling involving high-resolution, vector-based Geographical Information System (GIS) data for the optimal description of the urban environment with applications in Tokyo. We conclude the paper with some future prospects related to urban flood risk modeling and assessment in Japan. |
| first_indexed | 2024-03-11T00:13:40Z |
| format | Article |
| id | doaj.art-8f4a0bb2233f4246906c9e87bea65200 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-11T00:13:40Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-8f4a0bb2233f4246906c9e87bea652002023-11-18T23:47:04ZengMDPI AGWater2073-44412023-07-011515273310.3390/w15152733Urban Flood Runoff Modeling in Japan: Recent Developments and Future ProspectsAkira Kawamura0Hideo Amaguchi1Jonas Olsson2Hiroto Tanouchi3Department of Civil and Environmental Engineering, Tokyo Metropolitan University, Hachioji 192-0397, JapanDepartment of Civil and Environmental Engineering, Tokyo Metropolitan University, Hachioji 192-0397, JapanHydrology Research, Swedish Meteorological and Hydrological Institute, SE-601 76 Norrköping, SwedenFaculty of Systems Engineering, Wakayama University, Wakayama 640-8510, JapanSince the 20th century, Japan has experienced a period of very rapid urbanization. Cities have experienced substantial densification and expansion, resulting in gradually elevated flood risk. Urban flooding has also occurred in most large cities in Japan, particularly in Tokyo. In response to this growing problem, much effort and resources have been spent on research and development aimed at understanding, simulating, and managing urban flood risk in Japan. The objective of this review is to summarize, discuss, and share key outputs from some of the main research directions in this field, significant parts of which have been uniquely developed in Japan and only published in Japanese. After a general introduction to urban runoff modeling, in the next section, key historical works in Japan are summarized, followed by a description of the situation in Japan with respect to observations of precipitation and water level. Then, the storage function model approach is reviewed, including an extension to urban basins, as well as recent experiments with AI-based emulation in Japanese basins. Subsequently, we review the prospects of detailed hydrodynamic modeling involving high-resolution, vector-based Geographical Information System (GIS) data for the optimal description of the urban environment with applications in Tokyo. We conclude the paper with some future prospects related to urban flood risk modeling and assessment in Japan.https://www.mdpi.com/2073-4441/15/15/2733urban flood risk assessmentUSF modelTSR modelurban landscape GIS delineationrainfall data |
| spellingShingle | Akira Kawamura Hideo Amaguchi Jonas Olsson Hiroto Tanouchi Urban Flood Runoff Modeling in Japan: Recent Developments and Future Prospects Water urban flood risk assessment USF model TSR model urban landscape GIS delineation rainfall data |
| title | Urban Flood Runoff Modeling in Japan: Recent Developments and Future Prospects |
| title_full | Urban Flood Runoff Modeling in Japan: Recent Developments and Future Prospects |
| title_fullStr | Urban Flood Runoff Modeling in Japan: Recent Developments and Future Prospects |
| title_full_unstemmed | Urban Flood Runoff Modeling in Japan: Recent Developments and Future Prospects |
| title_short | Urban Flood Runoff Modeling in Japan: Recent Developments and Future Prospects |
| title_sort | urban flood runoff modeling in japan recent developments and future prospects |
| topic | urban flood risk assessment USF model TSR model urban landscape GIS delineation rainfall data |
| url | https://www.mdpi.com/2073-4441/15/15/2733 |
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