Geological Consequences of the Saemangeum Dyke, Mid-West Coast of Korea: A Review SCIE SCOPUS KCI

Cited 10 time in WEB OF SCIENCE Cited 10 time in Scopus
Title
Geological Consequences of the Saemangeum Dyke, Mid-West Coast of Korea: A Review
Author(s)
Lee, Hee Jun; Lee, Soo Hwan
KIOST Author(s)
Lee, Hee Jun(이희준)Lee, Su Hwan(이수환)
Publication Year
2012-12
Abstract
The Saemangeum Dyke is located in an estuarine setting, regulated in a complicated manner by a macrotidal regime, rivers, and winter monsoon. Accordingly, the constructed dyke resulted in a variety of artificial changes in geological characteristics in the estuary and its vicinity. To investigate those dyke-induced changes, the KORDI (Korea Ocean Research and Development Institute) performed sedimentological and sediment-dynamical observations from 2002 to 2010. On the basis of the KORDI results, the major geological changes and associated dynamical processes are reviewed. Five phenomena, among others, are focused on: depositional-channel creation; gap-related erosion; forced movements of surface sands; tidal-flat growth inside the dyke; and blanketing of mud over the sandy seafloor. These phenomena were unforeseen before the dyke construction, and reflect that the dyke could cause both erosion and deposition on an estuarine scale. The investigations conclude that the sediments in the dyke-influenced region were derived from the two rivers, Mangyeong and Dongjin, of the estuary. This is completely contrary to the offshore origin proposed before the dyke construction. As a result, the review supports the proposal that a thorough geological investigation and rational forecast is necessary prior to dyke construction to avoid economic loss and a fractious environmental debate.
ISSN
1738-5261
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3413
DOI
10.1007/s12601-012-0037-z
Bibliographic Citation
OCEAN SCIENCE JOURNAL, v.47, no.4, pp.395 - 410, 2012
Publisher
KOREA OCEAN RESEARCH DEVELOPMENT INST
Subject
SOUTHEASTERN YELLOW-SEA; ESTUARINE COMPLEX
Keywords
geological changes; Saemangeum Dyke; sediment texture; sediment transport; topography
Type
Article
Language
English
Document Type
Review
Publisher
KOREA OCEAN RESEARCH DEVELOPMENT INST
Related Researcher
Research Interests

Marine Geology,Sediment Dynamics,해양지질,퇴적역학

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