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http://dx.doi.org/10.11108/kagis.2021.24.1.012

Analysis of Land Cover Change in the Waterfront Area of Taehwa River using Hyperspectral Image Information  

KIM, Yong-Suk (Dept. of Landscape Architecture Dong-A University)
Publication Information
Journal of the Korean Association of Geographic Information Studies / v.24, no.1, 2021 , pp. 12-25 More about this Journal
Abstract
Land cover maps are used in various fields in urban expansion and development. This study analyzed the amount of land cover change over time using multi-sensor information, focusing on the waterfront area of the Taehwa River. In order to apply high-accuracy aerial hyperspectral images, patterns with Field-spectral were reviewed and compared with time series Digital map. The hyperspectral image was set as 13 land cover grades, and the time series digital map was classified into 7 and the waterfront area was classified into 5-6 grades and analyzed. As a result of analysis of the change in land cover of the digital map from the 1990s to 2010, it was found that forest areas were rapidly decreasing and Farmland and grassland were becoming urban. As for the land cover change(2010~2019) in the waterfront area(set 500m) analyzed through hyperspectral images, it was found that Farmland(1.4㎢), Forest(1.0㎢), and grassland (0.8㎢) were converted into urbanized and dried areas, and urbanization was accelerating around the Taehwa River waterfront. Recently, a lot of research has been conducted on the production of land cover maps using high-precision satellite images and aerial hyperspectral images, so it is expected that more detailed and precise land cover maps can be produced and utilized.
Keywords
Land cover map; Hyperspectral image; Waterfront; Field-spectral; Digital map;
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Times Cited By KSCI : 2  (Citation Analysis)
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