Essential aspects of beach erosion - Lessons from devastation of Ichinomiya coast, Japan

Satoquo Seino; Takaaki Uda; Yasuro Ohtani; Yasuhiro Ohki

doi:10.1016/j.proeng.2015.08.310

Essential aspects of beach erosion - Lessons from devastation of Ichinomiya coast, Japan

Satoquo Seino, Takaaki Uda, Yasuro Ohtani, Yasuhiro Ohki

Urban and Environmental Engineering

Research output: Contribution to journal › Conference article › peer-review

5 Citations (Scopus)

Abstract

The fundamental issues of the beach erosion including the difficulty in social and comprehensive adjustments of the beach erosion were discussed through a case study, taking the Ichinomiya coast on south Kujukuri Beach as an example. On this coast, sand supply from the sea cliffs markedly decreased as a result of the preventive measures against cliff erosion on upcoast, resulting in the downcoast erosion. Artificial headlands have been constructed since the 1990 as a measure against shoreline recession, but this caused further downcoast expansion of the beach erosion. Finally, it became difficult to escape from a vicious cycle of seawall construction - downcoast erosion - seawall construction - downcoast erosion, permitting further expansion of the erosion area. Such difficulties were analyzed.

Original language	English
Pages (from-to)	446-453
Number of pages	8
Journal	Procedia Engineering
Volume	116
Issue number	1
DOIs	https://doi.org/10.1016/j.proeng.2015.08.310
Publication status	Published - 2015
Event	5th International Conference on Asian and Pacific Coasts, APAC 2009 - Singapore, Singapore Duration: Oct 13 2009 → Oct 16 2009

All Science Journal Classification (ASJC) codes

Engineering(all)

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10.1016/j.proeng.2015.08.310

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title = "Essential aspects of beach erosion - Lessons from devastation of Ichinomiya coast, Japan",

abstract = "The fundamental issues of the beach erosion including the difficulty in social and comprehensive adjustments of the beach erosion were discussed through a case study, taking the Ichinomiya coast on south Kujukuri Beach as an example. On this coast, sand supply from the sea cliffs markedly decreased as a result of the preventive measures against cliff erosion on upcoast, resulting in the downcoast erosion. Artificial headlands have been constructed since the 1990 as a measure against shoreline recession, but this caused further downcoast expansion of the beach erosion. Finally, it became difficult to escape from a vicious cycle of seawall construction - downcoast erosion - seawall construction - downcoast erosion, permitting further expansion of the erosion area. Such difficulties were analyzed.",

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note = "Publisher Copyright: {\textcopyright} 2015 The Authors. Published by Elsevier Ltd. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.; 5th International Conference on Asian and Pacific Coasts, APAC 2009 ; Conference date: 13-10-2009 Through 16-10-2009",

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AU - Seino, Satoquo

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AU - Ohtani, Yasuro

AU - Ohki, Yasuhiro

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N2 - The fundamental issues of the beach erosion including the difficulty in social and comprehensive adjustments of the beach erosion were discussed through a case study, taking the Ichinomiya coast on south Kujukuri Beach as an example. On this coast, sand supply from the sea cliffs markedly decreased as a result of the preventive measures against cliff erosion on upcoast, resulting in the downcoast erosion. Artificial headlands have been constructed since the 1990 as a measure against shoreline recession, but this caused further downcoast expansion of the beach erosion. Finally, it became difficult to escape from a vicious cycle of seawall construction - downcoast erosion - seawall construction - downcoast erosion, permitting further expansion of the erosion area. Such difficulties were analyzed.

AB - The fundamental issues of the beach erosion including the difficulty in social and comprehensive adjustments of the beach erosion were discussed through a case study, taking the Ichinomiya coast on south Kujukuri Beach as an example. On this coast, sand supply from the sea cliffs markedly decreased as a result of the preventive measures against cliff erosion on upcoast, resulting in the downcoast erosion. Artificial headlands have been constructed since the 1990 as a measure against shoreline recession, but this caused further downcoast expansion of the beach erosion. Finally, it became difficult to escape from a vicious cycle of seawall construction - downcoast erosion - seawall construction - downcoast erosion, permitting further expansion of the erosion area. Such difficulties were analyzed.

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