混相流
Online ISSN : 1881-5790
Print ISSN : 0914-2843
ISSN-L : 0914-2843
【特 集】土砂輸送と地形変化(2)
海域の土砂移動を知る
武若 聡
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ジャーナル フリー

2019 年 33 巻 2 号 p. 156-161

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Coastal erosion is a severe problem elsewhere along the Japanese island, and efforts have been paid to cope the situation. For sophisticated management of coastal erosion, we must understand the spatial and temporal distribution of sediment fluxes, however, this item is usually very difficult to observe directly. The alternative way to estimate this item is measurement of bottom topographies, and then assess the sediment flux indirectly using the continuity equation between temporal change of bottom elevation and divergence of sediment flux. In this article, estimation of coastal sediment transport in the field is discussed, and then an attempt to estimate the sediment motion at the river mouth is introduced.

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© 2019 日本混相流学会
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