Spatial relationships between surface sedimentary facies distribution and topography using remotely sensed data: Example from the Ganghwa tidal flat, Korea SCIE SCOPUS

Cited 18 time in WEB OF SCIENCE Cited 22 time in Scopus
Title
Spatial relationships between surface sedimentary facies distribution and topography using remotely sensed data: Example from the Ganghwa tidal flat, Korea
Author(s)
Choi, Jong-Kuk; Eom, JinAh; Ryu, Joo-Hyung
KIOST Author(s)
Choi, Jong Kuk(최종국)Ryu, Joo Hyung(유주형)
Publication Year
2011-02
Abstract
Spatial relationships between surface sedimentary facies distribution and topography, including channel networks and an intertidal digital elevation model (DEM), were estimated for the Ganghwa tidal flat, Korea. Tidal channels were extracted from high spatial resolution satellite data and used to derive maps of channel density and distance from channels. The intertidal DEM was generated by a waterline method using Landsat Enhanced Thematic Mapper Plus (ETM+) images, and the map of surface sedimentary facies distribution was produced from grain-size data on sediment samples. A GIS-based frequency ratio model was applied to quantify the relationships between the surface sediment facies and topographic factors. The result indicated that the fine-grained mud flat facies occurs mainly in areas of complex tidal channels and in elevated areas that have a high spectral reflectance in the Landsat ETM+ image. The coarse-grained sand flat facies is concentrated in areas of sparse tidal channels, and the mixed flat facies is distributed where tidal channels have an intermediate level of complexity. The results demonstrate a significant spatial relationship between the distribution of surface sediment in a tidal flat and topographic features. We conclude that tidal channels should be considered an important factor in mapping surface sedimentary facies in tidal flat environments, and that patterns of tidal topography are a useful adjunct to spectral reflectance in classifying sedimentary facies from remotely sensed data with high spatial resolution. (C) 2010 Elsevier B.V. All rights reserved.
ISSN
0025-3227
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3915
DOI
10.1016/j.margeo.2010.10.022
Bibliographic Citation
MARINE GEOLOGY, v.280, no.1-4, pp.205 - 211, 2011
Publisher
ELSEVIER
Keywords
tidal channel; intertidal DEM; surface sedimentary facies distribution; spatial relationship; Ganghwa tidal flat
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER
Related Researcher
Research Interests

Coastal Remote Sensing,RS based Marine Surveillance System,GOCI Series Operation,연안 원격탐사,원격탐사기반 해양감시,천리안해양관측위성 운영

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