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Analysis of Changes in Urbanized Areas in Daejeon Metropolitan City by Detection of Changes in Time Series Landcover: Using Multi-temporal Satellite Images

  • Journal of the Association of Korean Geographers
  • Abbr : JAKG
  • 2020, 9(1), pp.177-190
  • DOI : 10.25202/JAKG.9.1.12
  • Publisher : Association of Korean Geographers
  • Research Area : Social Science > Geography
  • Received : March 20, 2020
  • Accepted : April 10, 2020
  • Published : April 30, 2020

Park hyun su 1,  Dong-Ho Jang 2

1공주대학교 지리학화
2공주대학교 지리학과

Accredited

ABSTRACT

This study detected changes in land cover based on multi-temporal satellite images in order to analyze patterns of changes in past urban areas in Daejeon Metropolitan City. In addition, the pattern of land cover changes in Daejeon Metropolitan City over the past 30 years was analyzed through an overlapping analysis between the area of change in the urban area and the data of the topographical in each of the five districts of Daejeon City. Studies have shown that changes in land cover over the past 30 years have shown an increasing trend in urbanized areas, water areas, grasslands and wetlands, while rice paddies, fields, forests and barelands tend to decline. As a result of the districts analysis, the largest increase in the area of the urbanization area is Yuseong-gu, followed by Seo-gu, Daedeok-gu, Dong-gu, and Jung-gu. In particular, Yuseong-gu has seen the largest increase in the area of urbanized areas due to the development of large-scale housing sites and the expansion of commercial areas, and most of the changed urbanized areas include paddies, fields, and forest areas in the past. As a result of the analysis with the topographical data, it was confirmed that urban expansion took place around flat land of less than 100 meters. The detection of changes in land cover and analysis of patterns of change in land cover for these urbanized areas could be used as important basic data for future urban development and management planning in Daejeon.

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This paper was written with support from the National Research Foundation of Korea.
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