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NTIS 바로가기대한원격탐사학회지 = Korean journal of remote sensing, v.33 no.6 pt.1, 2017년, pp.931 - 946
채성호 (한국환경정책.평가연구원) , 박숭환 (서울시립대학교 공간정보공학과) , 이명진 (한국환경정책.평가연구원)
The purpose of this study is to observe and analyze soil moisture conditions with high resolution and to evaluate its application feasibility to agriculture. For this purpose, we used three Landsat-8 OLI (Operational Land Imager)/TIRS (Thermal Infrared Sensor) optical and thermal infrared satellite ...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
토양수분의 역할은? | 토양수분은 수문·순환에 있어서 지표면과 대기층을 연결하는 매개체 역할을 수행하여 육상의 생태환경 및대기 프로세스를 평가하는데 결정적인 역할을 하며, 이에 기후학, 수문학, 기후 변화 및 환경 모니터링에 대한 연구를 포함하여 가장 중요한 토양 환경 변수 중 하나이다(Sellers and Schimel, 1993; Song et al., 2009; Gao et al. | |
토양의 수분상태를 관측 및 분석하는 것이 중요한 이유는? | ,2014). 토양수분이 변화하면 지표면과 대기사이의 질량 및 에너지이동에 변화가 발생하여 날씨 및 기후, 수자원, 홍수, 가뭄, 농업생산량, 토양침식 및 산사태 등 다양한 분야에 영향을 미치기 때문에 토양의 수분상태를 관측 및 분석하는 것은 매우 중요하다. 토양의 수분 상태를 관측 및 평가하기 위하여 우리나라를 비롯하여 전 세계적으로 지점 관측이 이루어지고 있지만 토양 특성, 지형 및 식생지역 규모에 따라 현장관측을 수행할 대표지역 선정에 어려움이 있으며, 그 방법이 복잡하고 공간적으로 관측하기에 시간과 인력을 많이 필요로 하는 등의 현실적인 문제가 존재 한다 (Goward et al. | |
토양의 수분 상태를 관측하고 평가하는데 있어서 생기는 문제점과 한계점을 극복하기 위해 어떠한 연구와 투자가 이루어지고 있는가? | , 2002). 이러한 한계점을 극복하기 위하여 위성영상을 활용하여 토양수분을 관측하려는 연구와 투자가 활발하게 이루어지고 있다. |
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