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Efficiency Assessment of Analysing Coastal Geomorphic Landscape Change by Satellite Image Interpretation  

박의준 (환경부 국립환경연구원 생물다양성연구부)
구자용 (상명대학교 사회과학부 지리학과)
Publication Information
Journal of the Korean Geographical Society / v.38, no.5, 2003 , pp. 822-834 More about this Journal
Abstract
It is difficult to analyse geomorphic landscape changes effectively by a field survey. A satellite image interpretation may play an important role to overcome such a problem. The purpose of this study is to assess the accuracy of different method to identify geomorphic landscape change by using satellite imagery. The study area is the Yongjong coastal wetland in which a huge man-made environmental change occured to build a new international airport in the past decade. These changes may be summarized that a coastal landscape has been changed to a terrestrial landscape, and also a natural landscape to a man-made landscape. In order to detect these changes, we applied three different satellite interpreting methods, including a binary change mask using band difference. a binary change mask using normalized band difference. and a binary change mask using NDVI. We concluded that a binary change mask using NDVI is the best method among three different methods analysing the coastal geomorphic-landscape changes.
Keywords
NDVI; satellite image; geomorphic landscape; binary change mask; NDIV; chanage detection; coastal wetland;
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