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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Kye-Lim Kim Sang-Wan Kim Joo-Hyung Ryu Sang-Hoon Hong |
| Copyright Year | 2008 |
| Description | Author affiliation: Div. of Marine Geol. & Geophys., Univ. of Miami, Miami, FL (Sang-Hoon Hong) || Dept. of Geoinformation Eng., Sejong Univ., Seoul (Kye-Lim Kim; Sang-Wan Kim) || Ocean Satellite Res. Group, Korea Ocean Res. & Dev. Inst., Ansan (Joo-Hyung Ryu) |
| Abstract | The Ganghwa tidal flat is located on the west coast of Korea. This area is covered by the sand, mud and mixed(sandy / muddy) sediments. The grain-size in the tidal flat is coarser to the seaward and finer to the eastern flat. The objectives of this study are to characterize the sedimentary environments based on the analysis of correlation between SAR data and factors of sedimentation. Therefore, we compared the backscattering coefficients and the coherence of JERS-1, ENVISAT, ERS-2 and ALOS images of SAR data. In the results of our analysis, we found a relationship between the backscattering coefficient and in-situ sediment grain-size. The backscattering coefficients appeared to be high in the region containing more of sand fraction because of the coarser grain-size and rougher surface. The coarse grain-size was more affected by the tide than the fine grain-size since the coarser grain-size has the smaller viscosity. Therefore the coherence is lower in the sand dominant area. |
| File Size | 1814008 |
| File Format | |
| ISBN | 9781424428076 |
| DOI | 10.1109/IGARSS.2008.4778900 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-07-07 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Backscatter Sediments Rough surfaces Surface roughness Tides Viscosity sedimentary environment backscattering coefficient coherence |
| Content Type | Text |
| Resource Type | Article |
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