Tidal channel distribution in relation to surface sedimentary facies based on remotely sensed data
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Title
- Tidal channel distribution in relation to surface sedimentary facies based on remotely sensed data
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Author(s)
- Eom, Jinah; Choi, Jong-Kuk; Ryu, Joo-Hyung; Woo, Han Jun; Won, Joong-Sun; Jang, Seok
- KIOST Author(s)
- Choi, Jong Kuk(최종국); Ryu, Joo Hyung(유주형); Woo, Han Jun(우한준); Jang, Seok(장석)
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Alternative Author(s)
- 엄진아; 최종국; 유주형; 우한준; 장석
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Publication Year
- 2012-06
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Abstract
- Tidal channel networks are important factors influencing the morphodynamics of tidal flats and surface sedimentary fades. Here we investigate the relationship between channel distribution and sedimentary facies in Geunso Bay tidal flat, Korea. The tidal channel networks were extracted from a high spatial resolution aerial photograph, and for each sedimentary facies the pattern of tidal channel distribution was compared in terms of fractal analysis, channel density, and distance from the channel. The tidal channels in each sediment facies had relatively constant meandering patterns, but the density and complexity were distinguishable. The second fractal dimension was 1.87 in the mud flat, 1.41 in the mixed flat, and about 1.30 in the sand flat. The channel density was 0.036-0.06 m/m(2) in the mud flat and 0-0.024 m/m(2) in the mixed and sand flat areas. This implies that the tidal channels in the mud flat area represent a complex and dendritic pattern with high density compared to those in the mixed or sand flat areas. The results were used to test the applicability of adjusting sedimentary facies classification generated from interpolation of survey data. We quantitatively estimated the pattern of tidal channel distribution for each sedimentary facies based on a high spatial resolution aerial photograph. We suggest that tidal channel network features can be useful to surface sedimentary facies classification in tidal flats.
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ISSN
- 1226-4806
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/3555
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DOI
- 10.1007/s12303-012-0015-6
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Bibliographic Citation
- GEOSCIENCES JOURNAL, v.16, no.2, pp.127 - 137, 2012
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Publisher
- GEOLOGICAL SOCIETY KOREA
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Subject
- ASYMMETRY
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Keywords
- surface sediment distribution; airborne remote sensing; tidal channel networks; fractal analysis; Geunso-Bay tidal flat
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Type
- Article
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Language
- English
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Document Type
- Article
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