Flood Season Staging and Adjustment of Limited Water Level for a Multi-Purpose Reservoir
A reasonable flood season delineation can effectively implement staged reservoir scheduling and improve water resource efficiency. Therefore, this study is aimed at analyzing the flood period segmentation and optimizing the staged flood limit water levels (FLWLs) for a multi-purpose reservoir, the L...
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| Format: | Article |
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MDPI AG
2022-02-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/14/5/775 |
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| author | Chongxun Mo Juan Deng Xingbi Lei Yuli Ruan Shufeng Lai Guikai Sun Zhenxiang Xing |
| author_facet | Chongxun Mo Juan Deng Xingbi Lei Yuli Ruan Shufeng Lai Guikai Sun Zhenxiang Xing |
| author_sort | Chongxun Mo |
| collection | DOAJ |
| description | A reasonable flood season delineation can effectively implement staged reservoir scheduling and improve water resource efficiency. Therefore, this study is aimed at analyzing the flood period segmentation and optimizing the staged flood limit water levels (FLWLs) for a multi-purpose reservoir, the Longtan Reservoir, China. The rainfall seasonality index (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>S</mi><msub><mi>I</mi><mi>P</mi></msub></mrow></semantics></math></inline-formula>) and the runoff seasonality index (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>S</mi><msub><mi>I</mi><mi>R</mi></msub></mrow></semantics></math></inline-formula>) are used to evaluate the feasibility and rationality of the flood period staging. The fractal method is then used to segment the flood season. Finally, the design flood is carried out to optimize the staged FLWLs. The results show that the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>S</mi><mi>I</mi></mrow></semantics></math></inline-formula> is an effective indicator for judging the feasibility and verifying the rationality of flood segmentation. The flood period can be segmented into the pre-flood season (12 April–29 May), the main flood season (30 May–3 September), and the post-flood season (4 September–9 November). The FLWLs in the main flood and the post-flood season can be raised by 2.05 m and 3.45 m, and the effective reservoir capacity is increased by 5.810 billion m<sup>3</sup> and 6.337 billion m<sup>3</sup>, according to the results of the flood season division. |
| first_indexed | 2024-03-09T20:14:29Z |
| format | Article |
| id | doaj.art-5776211a7e0a43baa510a0d96a3eaed2 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-09T20:14:29Z |
| publishDate | 2022-02-01 |
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| series | Water |
| spelling | doaj.art-5776211a7e0a43baa510a0d96a3eaed22023-11-24T00:03:02ZengMDPI AGWater2073-44412022-02-0114577510.3390/w14050775Flood Season Staging and Adjustment of Limited Water Level for a Multi-Purpose ReservoirChongxun Mo0Juan Deng1Xingbi Lei2Yuli Ruan3Shufeng Lai4Guikai Sun5Zhenxiang Xing6College of Architecture and Civil Engineering, Guangxi University, Nanning 530004, ChinaCollege of Architecture and Civil Engineering, Guangxi University, Nanning 530004, ChinaCollege of Architecture and Civil Engineering, Guangxi University, Nanning 530004, ChinaCollege of Architecture and Civil Engineering, Guangxi University, Nanning 530004, ChinaCollege of Architecture and Civil Engineering, Guangxi University, Nanning 530004, ChinaCollege of Architecture and Civil Engineering, Guangxi University, Nanning 530004, ChinaSchool of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150006, ChinaA reasonable flood season delineation can effectively implement staged reservoir scheduling and improve water resource efficiency. Therefore, this study is aimed at analyzing the flood period segmentation and optimizing the staged flood limit water levels (FLWLs) for a multi-purpose reservoir, the Longtan Reservoir, China. The rainfall seasonality index (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>S</mi><msub><mi>I</mi><mi>P</mi></msub></mrow></semantics></math></inline-formula>) and the runoff seasonality index (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>S</mi><msub><mi>I</mi><mi>R</mi></msub></mrow></semantics></math></inline-formula>) are used to evaluate the feasibility and rationality of the flood period staging. The fractal method is then used to segment the flood season. Finally, the design flood is carried out to optimize the staged FLWLs. The results show that the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>S</mi><mi>I</mi></mrow></semantics></math></inline-formula> is an effective indicator for judging the feasibility and verifying the rationality of flood segmentation. The flood period can be segmented into the pre-flood season (12 April–29 May), the main flood season (30 May–3 September), and the post-flood season (4 September–9 November). The FLWLs in the main flood and the post-flood season can be raised by 2.05 m and 3.45 m, and the effective reservoir capacity is increased by 5.810 billion m<sup>3</sup> and 6.337 billion m<sup>3</sup>, according to the results of the flood season division.https://www.mdpi.com/2073-4441/14/5/775seasonality indexfractal methodflood period segmentationFLWLLongtan Reservoir |
| spellingShingle | Chongxun Mo Juan Deng Xingbi Lei Yuli Ruan Shufeng Lai Guikai Sun Zhenxiang Xing Flood Season Staging and Adjustment of Limited Water Level for a Multi-Purpose Reservoir Water seasonality index fractal method flood period segmentation FLWL Longtan Reservoir |
| title | Flood Season Staging and Adjustment of Limited Water Level for a Multi-Purpose Reservoir |
| title_full | Flood Season Staging and Adjustment of Limited Water Level for a Multi-Purpose Reservoir |
| title_fullStr | Flood Season Staging and Adjustment of Limited Water Level for a Multi-Purpose Reservoir |
| title_full_unstemmed | Flood Season Staging and Adjustment of Limited Water Level for a Multi-Purpose Reservoir |
| title_short | Flood Season Staging and Adjustment of Limited Water Level for a Multi-Purpose Reservoir |
| title_sort | flood season staging and adjustment of limited water level for a multi purpose reservoir |
| topic | seasonality index fractal method flood period segmentation FLWL Longtan Reservoir |
| url | https://www.mdpi.com/2073-4441/14/5/775 |
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