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Journal of the Korean Society of Hazard Mitigation 2008;8(5):77-84.
Published online October 31, 2008.
행정중심복합도시 재해경감대책을 위한 토지피복분류
한승희
Land Cover Classification of Multi-functional Administrative City for Hazard Mitigation Precaution
Seung-Hee Han
Abstract
In this study, land cover classification and NDVI evaluation for hazard mitigation precaution are carried out in surrounding areas of Yeongi-gun, Chungcheongnam-do ($132;km^2$) where a project for multi-functional administrative city is promoted by government. Image acquired from KOMPSAT 2, LANDSAT and ASTER is utilized and comparative evaluation on limitation in classification based on resolution was carried out. The area mainly consists of arable land including mountains, rice fields, ordinary fields, etc thus special attention was paid to the classification of rice fields and ordinary fields. For the classification of image acquired from KOMPSAT 2, segmentation technique for classification of high-resolution image was applied. To evaluate the accuracy of the classification, field investigation was conducted to examine the sample and it was compared with the land usage and classification of land category in land ledger of Korea. Acquired results were made into theme map in shape file format and it would be of great help in decision making of policy for the future-oriented development plan of multi-functional administrative city.
Key Words: KOMPSAT2; Land cover classification; NDVI; Thematic map; Aster; Landsat
요지
본 연구에서는 정부차원에서 충남 연기군 일대에 추진되고 있는 행정중심복합도시 대상지역($132;km^2$)에 대하여 재해대책을 위한 토지피복 분류 및 식생활력도(NDVI) 평가를 시도하였다. 활용한 영상은 아리랑 2호, LANDSAT, Aster 영상이며 해상도에 따른 분류의 한계를 비교, 평가하였다. 대상지역은 주로 산지와 논과 밭 등의 경작지이므로 특히 논과 밭의 분류에 주의를 기울였다. 아리랑2호 영상의 분류에 있어서는 고해상영상 분류를 위한 세그먼테이션 기법을 적용하였다. 분류의 정확도를 평가하기 위해 표본적으로 현장조사를 실시하여 검사하였으며 국가 토지이용도 및 토지대장의 지목과 비교하였다. 얻어진 결과는 shape file의 형태로 주제도를 완성하였으며 이는 행정중심복합도시의 미래지향적 개발계획을 위한 정책결정에 많은 도움이 될 것이다.
핵심용어: 토지피복분류; 주제도
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