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Japan's beach erosion : reality and future measures /
Beaches in Japan have been eroding since the 1970s as a result of the artificial land alterations. Approximately 3000 fishing ports and 1000 commercial ports have been built nationwide, as well as 2532 large dams being constructed in the upstream basins of large rivers. Due to the port and dam devel...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés Japonés |
| Publicado: |
Singapore ; Hackensack, NJ ; London :
World Scientific,
©2010.
|
| Colección: | Advanced series on ocean engineering ;
v. 31. |
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- 1. What is beach erosion?
- 2. Beach erosion
- current reality. 2.1. Classification of causes of beach erosion. 2.2. Beach erosion due to obstruction of longshore sand transport. 2.3. Beach erosion triggered by construction of wave-sheltering structures. 2.4. Beach erosion due to decrease in fluvial sediment supply. 2.5. Beach erosion triggered by offshore sand mining/dredging. 2.6. Beach erosion triggered by construction of detached breakwater as countermeasure. 2.7. Disappearance of natural sand dunes due to excess planting of coastal forest. 2.8. Disappearance of sandy beach triggered by construction of gently sloping revetment
- 3. Practical models for predicting beach changes. 3.1. Characteristics of practical models. 3.2. Prediction of stable shoreline on Pocket Beach. 3.3. Three-dimensional model for predicting beach changes using Hsu and Evans' model. 3.4. Predictive model of three-dimensional beach changes on coast with a seawall by expanding Hsu and Evans' model. 3.5. Simple model for predicting three-dimensional beach changes on statically stable beach. 3.6. Shoreline change model on coasts composed of sand of mixed grain size. 3.7. Predictive model of shoreline and grain size around river mouth. 3.8. Contour-line change model considering stabilization mechanism of longitudinal profile. 3.9. Contour-line change model solved on x-y meshes
- 4. Beach erosion as structural problem. 4.1. Introduction. 4.2. Institutional (legal) issues related to beach erosion. 4.3. Technical issues related to beach rrosion. 4.4. Concrete measures.