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Possible origin of coastal sands and their long-term distribution along the high slope-gradient, wave-dominated eastern coast, Korea

Cited 2 time in scopus
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Title
Possible origin of coastal sands and their long-term distribution along the high slope-gradient, wave-dominated eastern coast, Korea
Other Titles
파랑우세 동해안에서의 연안모래의 기원 및 분포
Authors
Hee Jun Lee
Chanhong Park
Chang Woong Shin
Ha, Ho Kyung
Jeseon Yoo
Eui Young Jeong
Sang Hoon Lee
Jun-Yong Park
Subject
Geology
Keywords
East Sea; coastal sand; distribution; sediment transport; source
Issue Date
2013
Publisher
Springer
Citation
Hee Jun Lee, et al. 2013. "Possible origin of coastal sands and their long-term distribution along the high slope-gradient, wave-dominated eastern coast, Korea". GEOSCIENCES JOURNAL, 17: 163-172.
Abstract
This study aims to investigate possible source and distributional patterns of coastal sands in the high slope-gradient, wave-dominated coast with no large rivers, eastern Korea. Chirp (2? 7 kHz) seismic profiles show that the coastal sand deposits, the uppermost transparent layer, are up to 7.1 m thick off small, mountainous stream mouths, and thins laterally, showing a radial distribution from the stream mouths with a slightly SE-skewed elongated (i.e., alongshore) geometry. This suggests that the terrigenous coarse sediments emptied by the streams during the summer flash flooding season have been a major source to the adjacent coastal sands. Hydrodynamic measurements with benthic tripod systems indicate that alongshore currents occurring during episodic storms play a significant role in the displacement of the coastal sands toward the southeast, resulting in the slightly SE-skewed elongated (i.e., alongshore) distributional geometry of the sands.al sand deposits, the uppermost transparent layer, are up to 7.1 m thick off small, mountainous stream mouths, and thins laterally, showing a radial distribution from the stream mouths with a slightly SE-skewed elongated (i.e., alongshore) geometry. This suggests that the terrigenous coarse sediments emptied by the streams during the summer flash flooding season have been a major source to the adjacent coastal sands. Hydrodynamic measurements with benthic tripod systems indicate that alongshore currents occurring during episodic storms play a significant role in the displacement of the coastal sands toward the southeast, resulting in the slightly SE-skewed elongated (i.e., alongshore) distributional geometry of the sands.
URI
http://repository.kopri.re.kr/handle/201206/5689
DOI
http://dx.doi.org/10.1007/s12303-013-0010-6
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