Development of effective pre-release method for dams during super typhoons using long-term ensemble rainfall forecasts
Against the background of increasing frequency of heavy rainfall due to climate change, an analytical approach to maximize the effective use of the reservoir from both flood control and water utilization was conducted. Simulations by applying statistical down-scaling method to the long-term ensemble...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2022-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/13/e3sconf_cigb2022_01016.pdf |
| _version_ | 1811232852984987648 |
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| author | Kido Kentaro Tano Hiroaki Sumi Tetsuya Nohara Daisuke Michihiro Yuri Kitani Kazuhiro |
| author_facet | Kido Kentaro Tano Hiroaki Sumi Tetsuya Nohara Daisuke Michihiro Yuri Kitani Kazuhiro |
| author_sort | Kido Kentaro |
| collection | DOAJ |
| description | Against the background of increasing frequency of heavy rainfall due to climate change, an analytical approach to maximize the effective use of the reservoir from both flood control and water utilization was conducted. Simulations by applying statistical down-scaling method to the long-term ensemble rainfall forecast by ECMWF on a dam basin where a large inflow occurred during the Typhoon Hagibis in 2019 were shown. The results show that it is possible to use long-term ensemble rainfall forecasts to gain a temporal, stochastic understanding of total rainfall, required flood storage volumes, and recoverable reserves. Based on this understanding, a calculation method for setting release rates that correspond to effective pre-release start times and changes in rainfall forecasts in order to minimize both flood control and water service risks was proposed. |
| first_indexed | 2024-04-12T11:11:17Z |
| format | Article |
| id | doaj.art-63a39ef4f41c489083188a1b56e344e6 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-04-12T11:11:17Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-63a39ef4f41c489083188a1b56e344e62022-12-22T03:35:37ZengEDP SciencesE3S Web of Conferences2267-12422022-01-013460101610.1051/e3sconf/202234601016e3sconf_cigb2022_01016Development of effective pre-release method for dams during super typhoons using long-term ensemble rainfall forecastsKido Kentaro0Tano Hiroaki1Sumi Tetsuya2Nohara Daisuke3Michihiro Yuri4Kitani Kazuhiro5Japan Water Agency, Water Resources Engineering DepartmentJapan Water Agency, Shimokubo Dam Operation and Maintenance OfficeKyoto University, Disaster Prevention Research InstituteKyoto University, Disaster Prevention Research InstituteJapan Weather Association, Kansai Regional OfficeJapan Weather Association, Social and Disaster Management DepartmentAgainst the background of increasing frequency of heavy rainfall due to climate change, an analytical approach to maximize the effective use of the reservoir from both flood control and water utilization was conducted. Simulations by applying statistical down-scaling method to the long-term ensemble rainfall forecast by ECMWF on a dam basin where a large inflow occurred during the Typhoon Hagibis in 2019 were shown. The results show that it is possible to use long-term ensemble rainfall forecasts to gain a temporal, stochastic understanding of total rainfall, required flood storage volumes, and recoverable reserves. Based on this understanding, a calculation method for setting release rates that correspond to effective pre-release start times and changes in rainfall forecasts in order to minimize both flood control and water service risks was proposed.https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/13/e3sconf_cigb2022_01016.pdf |
| spellingShingle | Kido Kentaro Tano Hiroaki Sumi Tetsuya Nohara Daisuke Michihiro Yuri Kitani Kazuhiro Development of effective pre-release method for dams during super typhoons using long-term ensemble rainfall forecasts E3S Web of Conferences |
| title | Development of effective pre-release method for dams during super typhoons using long-term ensemble rainfall forecasts |
| title_full | Development of effective pre-release method for dams during super typhoons using long-term ensemble rainfall forecasts |
| title_fullStr | Development of effective pre-release method for dams during super typhoons using long-term ensemble rainfall forecasts |
| title_full_unstemmed | Development of effective pre-release method for dams during super typhoons using long-term ensemble rainfall forecasts |
| title_short | Development of effective pre-release method for dams during super typhoons using long-term ensemble rainfall forecasts |
| title_sort | development of effective pre release method for dams during super typhoons using long term ensemble rainfall forecasts |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/13/e3sconf_cigb2022_01016.pdf |
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