IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 2: Coastal Hydraulics: Form and Function : Temporal variations of bottom profile and sediment along an observation pier
Temporal variations of bottom profile and sediment along an observation pier
Author :
Ogata Wave Observatory (OWO), belonging to DPRI, Kyoto University had a T-shaped Observation Pier (TOP), and the cross-shore bottom profiles along the TOP have been measured once in a month. After the removal of the TOP in 2008, bottom profile measurement with depth sounder and sampling of bottom sediment have been carried out a few times a year. In this paper, annual variations of cross shore bottom profile are shown with grain size distributions in cross-shore direction. Shoreline retreat around the TOP proceeded continuously for a long time. In contrast, shoreline advance is observed since 2005 although the shoreline advance occurs in the limited area around the TOP. Cross-shore distributions of grain size composition have some change corresponding to bottom profiles, and the decrease of grain size is observed under the condition of shoreline advance.
File Size : 949,758 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 2: Coastal Hydraulics: Form and Function
Date Published : 01/07/2011
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