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NTIS 바로가기대한원격탐사학회지 = Korean journal of remote sensing, v.35 no.5 pt.1, 2019년, pp.649 - 663
이수종 (고려대학교 환경생태공학과) , 박은빈 (고려대학교 환경생태공학과) , 송철호 (고려대학교 환경GIS) , 임철희 (고려대학교 생명자원연구소) , 차성은 (고려대학교 환경생태공학과) , 이슬기 (고려대학교 환경생태공학과) , 이우균 (고려대학교 환경생태공학부)
The 2018 United Nations Development Programme (UNDP) report announced that deforestation in North Korea is the most extreme situation and in terms of climate change, this deforestation is a global scale issue. To respond deforestation, various study and projects are conducted based on remote sensing...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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북한의 경우 전 국토 중 산림이 차지하는 면적이 90년대 대비 감소한 이유는? | 8%로 1990년대 대비 38.7%가 감소하였으며, 이에 대한 가장 큰 원인으로는 경제적 공급 부족으로 인한 북한의 만성적인 식량난과 개간 산지의 확대, 산림 병해충의 영향 때문이다(UNDP, 2018; NIE, 2017; KEI, 2018). 국제조사기관인 ‘Maplecroft’에 따르면 북한은 극단적인 산림황폐화국에 속해있으며, 현재도 산림 황폐화는 급속도로 진행되고 있으므로 북한의 산림에 대한 지속적인 관심과 사업이 중요한 실정이다(Maplecroft, 2012; KEI, 2019). | |
북한의 경우 산림 관련 자료의 접근이 제한적인데, 어떻게 해결하는가? | , 2018; Choi and Um, 2012). 따라서 위성영상자료와 지리정보시스템(Geographic Information System; GIS)자료를 기반으로 북한의 산림황폐화에 대응하기 위한 다양한 연구들이 제시되고 있으며, Choi et al.(2015)은 체계적으로 자료의 정밀도가 향상되고 있는 남한 강원도의 산림 공간자료를 훈련용 자료(Training Data)로 활용하여 유의성 있는 북한 강원도의 산림 탐지 자료를 취득할 수 있는 가능성을 언급한 바 있다(Yoo et al., 2011). | |
Landsat Level-2 위성영상이란? | 본 연구에서는 지리적·정치적인 한계로 접근할 수 없는 지역에 대한 광범위한 면적의 산림을 탐지하기 위해 미국 지질조사국(United States Geological Survey; USGS)에서 제공하는 대기 보정이 적용된 Landsat Level-2 위성영상을 이용하였다. Landsat Level-2 영상은 USGS Earth Resources Observation and Science(EROS)에서 Science Processing Architecture(ESPA)를 통해 기존 Level-1 위성영상을 대상으로 대기 영향이 보정된 영상으로 Landsat 4, 5, 7, 8에 대해 사용자 주문형으로 제공된다(USGS. 2015). |
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