High Resolution Ocean Color Products Estimation in Fjord of Svalbard, Arctic Sea using Landsat-8 OLI
Landsat-8 OLI를 이용한 북극해 스발바드 피요르드의 고해상도 Ocean Color Product 산출

Sang-Il Kim, Hyun-Cheol Kim, Chang-Uk Hyun
2014 Korean Journal of Remote Sensing  
Ocean Color products have been used to understand marine ecosystem. In high latitude region, ice melting optically influences the ocean color products. In this study, we assessed optical properties in fjord around Svalbard Arctic sea, and estimated distribution of chlorophyll-a and suspended sediment by using high resolution satellite data, Landsat-8 Operational Land Imager (OLI). To estimate chlorophyll-a and suspended sediment concentrations, various regression models were tested with
more » ... tested with different band ratio. The regression models were not shown high correlation because of temporal difference between satellite data and in-situ data. However, model-derived distribution of ocean color products from OLI showed a possibility that fjord and coastal areas around Arctic Sea can be monitored with high resolution satellite data. To understand climate change pattern around Arctic Sea, we need to understand ice meting influences on marine ecosystem change. Results of this study will be used to high resolution monitoring of ice melting and its influences on the marine ecosystem change at high latitude. KOPRI (Korea Polar Research Institute) has been operated the Dasan station on Svalbard since 2002, and study was conducted using Arctic station. 요약 : Ocean Color product들은 해양 생태계를 이해하기 위해 중요한 변수이다. 고위도 지역에서는 해 빙이 바다로 유입되어 ocean color product에 광학적인 영향을 미친다. 본 연구에서는 북극 다산기지 근해 의 피요르드에 대한 광학적 특성을 평가하고 높은 공간해상도를 가진 Landsat-8 OLI 영상의 엽록소a(chlorophyll-a)와 부유물질(suspended sediment) 농도를 산출하고자 한다. 엽록소-a와 부유물질 농도 를 추정하기 위해서 band ratio를 이용한 다양한 회귀 모델을 테스트했다. 위성영상과 관측된 실측 값과의 -8 09 -
doi:10.7780/kjrs.2014.30.6.11 fatcat:geaf4s457vcvxdlh35u42izhhy