• Title/Summary/Keyword: 위성레이져고도계

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A study of Accuracy Assessment of Digital Elevation Model in the Greenland (그린란드 수치표고모델의 수직정확도 검증에 관한 연구)

  • Park, Ho Joon;Choi, Yun Soo;Kim, Jae Myeong
    • Spatial Information Research
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    • v.22 no.4
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    • pp.59-65
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    • 2014
  • 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.