Morphodynamic Model for Predicting Beach Changes Based on Bagnold's Concept and Its Applications
The authors have developed models for predicting beach changes applicable to various problems on real coasts. One of them is the contour-line-change model to predict long-term beach changes caused by the imbalance in longshore sand transport, which is a kind of N-line model. Because the calculation...
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| Format: | Online |
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| Idioma: | anglès |
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IntechOpen
2023
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| Accés en línia: | ONIX_20231201_9781789849462_1548 |
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| collection | Directory of Open Access Books |
| description | The authors have developed models for predicting beach changes applicable to various problems on real coasts. One of them is the contour-line-change model to predict long-term beach changes caused by the imbalance in longshore sand transport, which is a kind of N-line model. Because the calculation of the nearshore current is not needed in this model, and the computational load is small, it has an advantage in the prediction of long-term topographic changes on an extensive coast. However, the handling of boundary conditions becomes difficult when offshore coastal structures are constructed in a complicated manner, and in this regard the so-called 3D model has an advantage. Taking this point into account, the authors developed a morphodynamic model (BG model) by applying the concept of the equilibrium slope and the energetics approach, in which depth changes on 2D horizontal grids are calculated. |
| format | Online |
| id | doab-20.500.12854ir-130439 |
| institution | Directory of Open Access Books |
| language | eng |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | IntechOpen |
| publisherStr | IntechOpen |
| record_format | ojs |
| spelling | doab-20.500.12854ir-1304392024-04-09T11:41:59Z Morphodynamic Model for Predicting Beach Changes Based on Bagnold's Concept and Its Applications Uda, Takaaki Serizawa, Masumi Miyahara, Shiho segmentation, bg model, longshore sand transport, artificial reef, cuspate foreland thema EDItEUR::R Earth Sciences, Geography, Environment, Planning::RB Earth sciences::RBK Hydrology and the hydrosphere::RBKC Oceanography (seas and oceans) The authors have developed models for predicting beach changes applicable to various problems on real coasts. One of them is the contour-line-change model to predict long-term beach changes caused by the imbalance in longshore sand transport, which is a kind of N-line model. Because the calculation of the nearshore current is not needed in this model, and the computational load is small, it has an advantage in the prediction of long-term topographic changes on an extensive coast. However, the handling of boundary conditions becomes difficult when offshore coastal structures are constructed in a complicated manner, and in this regard the so-called 3D model has an advantage. Taking this point into account, the authors developed a morphodynamic model (BG model) by applying the concept of the equilibrium slope and the energetics approach, in which depth changes on 2D horizontal grids are calculated. 2023-12-01T17:35:15Z 2023-12-01T17:35:15Z 2018 book ONIX_20231201_9781789849462_1548 9781789849462 9781789849455 9781838812683 https://directory.doabooks.org/handle/20.500.12854/130439 eng image/jpeg Attribution-NonCommercial 4.0 International https://www.intechopen.com/books/6012 https://mts.intechopen.com/storage/books/6012/authors_book/authors_book.pdf IntechOpen IntechOpen 10.5772/66722 10.5772/66722 78a36484-2c0c-47cb-ad67-2b9f5cd4a8f6 9781789849462 9781789849455 9781838812683 IntechOpen 208 open access |
| spellingShingle | segmentation, bg model, longshore sand transport, artificial reef, cuspate foreland thema EDItEUR::R Earth Sciences, Geography, Environment, Planning::RB Earth sciences::RBK Hydrology and the hydrosphere::RBKC Oceanography (seas and oceans) Morphodynamic Model for Predicting Beach Changes Based on Bagnold's Concept and Its Applications |
| title | Morphodynamic Model for Predicting Beach Changes Based on Bagnold's Concept and Its Applications |
| title_full | Morphodynamic Model for Predicting Beach Changes Based on Bagnold's Concept and Its Applications |
| title_fullStr | Morphodynamic Model for Predicting Beach Changes Based on Bagnold's Concept and Its Applications |
| title_full_unstemmed | Morphodynamic Model for Predicting Beach Changes Based on Bagnold's Concept and Its Applications |
| title_short | Morphodynamic Model for Predicting Beach Changes Based on Bagnold's Concept and Its Applications |
| title_sort | morphodynamic model for predicting beach changes based on bagnold s concept and its applications |
| topic | segmentation, bg model, longshore sand transport, artificial reef, cuspate foreland thema EDItEUR::R Earth Sciences, Geography, Environment, Planning::RB Earth sciences::RBK Hydrology and the hydrosphere::RBKC Oceanography (seas and oceans) |
| topic_facet | segmentation, bg model, longshore sand transport, artificial reef, cuspate foreland thema EDItEUR::R Earth Sciences, Geography, Environment, Planning::RB Earth sciences::RBK Hydrology and the hydrosphere::RBKC Oceanography (seas and oceans) |
| url | ONIX_20231201_9781789849462_1548 |