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- W2044992439 abstract "최근 북극지역은 지구온난화에 따른 각종개발 및 기후변화 연구 등을 위하여 수치표고모델 수요가 증가되고 있기 때문에 수치표고모델을 활용하기 위해서는 정확도에 대한 검증이 필요하다. 본 연구에서는 대부분이 빙하로 덮여 있는 그린란드에 구축된 수치표고모델 중 ASTER GDEM과 GIMP DEM을 검증하였다. 수치표고모델을 검증하기 위하여 토지피복도를 사용하여 그린란드를 내륙빙상지역과 해안비빙상지역으로 나누었으며, 두 수치표고모델과 ICESat 표고값과의 차를 비교하여 정확도를 검증하였다. 그 결과 내륙빙상지역에서는 GIMP DEM의 정확도가 더 높았으며, 해안비빙상지역에서는 ASTER GDEM의 정확도가 더 높은 것으로 나타났다. Recently, increasing demand for 'Digital Elevation Model(DEM)' to climate change research and various development by global warming in the Arctic region. So we need to verify the accuracy to utilize DEM. In this research, we verified 'ASTER GDEM' and 'GIMP DEM' in several DEM which constructed in the Greenland that most of the area is covered ice sheet. We divided greenland into two part, ice sheet area and non ice sheet area by using the ESA globcover. Then, comparing a difference between 'ASTER DEM', 'GIMP DEM' and ICESat elevation data to verify the accuracy. As a result, GIMP DEM has higher accuracy in ice sheet area and ASTER GDEM has higher accuracy in non-ice sheet area." @default.
- W2044992439 created "2016-06-24" @default.
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- W2044992439 date "2014-08-31" @default.
- W2044992439 modified "2023-10-17" @default.
- W2044992439 title "A study of Accuracy Assessment of Digital Elevation Model in the Greenland" @default.
- W2044992439 cites W2023899670 @default.
- W2044992439 doi "https://doi.org/10.12672/ksis.2014.22.4.059" @default.
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