Open AccessREDUCTION PROCESS OF CROSS-SECTIONAL AREA AT RIVER MOUTH
Author(s) -
Takuzo Shimizu,
Kosuke Kondo,
Ryoichi Kajima
Publication year - 1986
Publication title -
proceedings of conference on coastal engineering/proceedings of ... conference on coastal engineering
Language(s) - English
Resource type - Journals
eISSN - 2156-1028
pISSN - 0589-087X
DOI - 10.9753/icce.v20.113
Subject(s) - river mouth , reduction (mathematics) , closing (real estate) , environmental science , hydrology (agriculture) , sediment , geology , geomorphology , geotechnical engineering , mathematics , geometry , political science , law
Reduction processes of the cross-sectional area at a river mouth were investigated on the basis of numerical simulations and field measurements, in order to predict the possibility of closing of the mouth of the Samegawa River, Fukushima, Japan. As a result, it was found that the decrease in tidal prism, induced by a reduction of the cross-sectional area, had an important effect on the closing of the river mouth. By considering this effect and estimating the sediment transport rate properly, a practical prediction model was successfully established for simulating the reduction processes of the crosssectional area at the river mouth.