Korean Journal of Remote Sensing (대한원격탐사학회지)

Korean Society of Remote Sensing (대한원격탐사학회)
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Towards an Integrated Drought Monitoring with Multi-satellite Data Products Over Korean Peninsular

위성자료를 활용한 한반도 전역의 가뭄 통합 모니터링 방안

  • Received : 2017.11.06
  • Accepted : 2017.12.18
  • Published : 2017.12.31
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Abstract

Drought is a worldwide natural disaster with extensively adverse impacts on natural ecosystems, agricultural products, social communities and regional economy. Various global satellite observations, including SMAP soil moisture, GRACE terrestrial water storage, Terra and Aqua vegetation productivity, evapotranspiration, and satellite precipitation measures are currently used to characterize seasonal timing and inter-annual variations of regional water supply pattern, vegetation growth, drought events, and its associated influence ecosystems and human society. We suggest the satellite monitoring system development to quantify meteorological, eco-hydrological, and socio-ecological factors related to drought events, and characterize spatial and temporal drought patterns in Korea. The combination of these complementary remote sensing observations(visible to microwave bands) provide an effective means for evaluating regional variations in the timing, frequency, and duration of drought, and availability of water supply influencing vegetation and crop growth. This integrated drought monitoring could help national capacity to deal with natural disasters.

가뭄은 전 지구차원의 다방면에 걸쳐 피해를 주는 자연 재해이다. 21세기 들어 최근까지 다양한 위성관측 기기를 활용하여 다양한 가뭄의 유형을 모니터링 할 수 있게 되었는데, SMAP위성의 토양수분, GRACE 위성의 생태계 물 저장량, Terra & Aqua의 생태계 생산량과 증발산량 그리고 위성 강우 관측 등이 그 예이다. 이들 위성 자료의 분석을 통해 지역적 수자원 현황 및 가뭄과 이로 인한 (수)생태계 영향, 농업 등의 산업, 그리고 인간사회의 영향을 시공간적으로 파악할 수 있다. 가시광선부터 마이크로파까지 채널 (밴드)마다 관측할 수 있는 기상 및 환경 변수가 다르기 때문에 다양한 센서로부터 획득할 수 있는 원격탐사자료는 한반도 전역을 대상으로 가뭄에 대한 수자원 변화와 연관된 피해를 시공간적으로 파악하는 데에 상호 보완적이며 효과적인 수단이다. 따라서 이러한 위성자료들을 통해 국가 재난 대응 차원의 활용방안을 제안하고자 한다.

Keywords

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