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http://dx.doi.org/10.7848/ksgpc.2018.36.4.205

Analysis of Hyperspectral Radiometer and Water Constituents Data for Remote Estimation of Water Quality  

Kim, Wonkook (Korea Ocean Satellite Center, Korea Institute of Ocean Science and Technology)
Choi, Jun Myoung (Korea Ocean Satellite Center, Korea Institute of Ocean Science and Technology)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.36, no.4, 2018 , pp. 205-211 More about this Journal
Abstract
Remote estimation of water quality via radiometric instruments provides a convenient means for monitoring environmental changes in water bodies in wide areas. Combined with platforms such as satellite, manned/unmanned vehicles, it reduces the measurement cost and time for acquiring water quality information on the interested target areas. To develop accurate retrieval algorithms, however, acquisition of in-situ measurements from various optical environment is critical. In this study, hyperspectral radiometric measurements, the coincident water quality variables, and its optical properties were obtained to analyze the optical environment of the study area. Field data collected around the Tongyeong area showed that the area has optically complex environment, with occasional outbreak of red tide in summer seasons. Effect of water constituents on the optical variables (remote sensing reflectance and absorption coefficients) were qualitatively analyzed.
Keywords
Water Quality; Remote Sensing; Hyperspectral; Chlorophyll-a; Total Suspended Matter; Absorption;
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