Analysis of marine hazardous noxious substance optical characterization for satellite-based remote sensing detection

Abstract

Recently, HNS accidents have been steadily increasing with the increase of hazardous-noxious substances and oil marine commodities, which has a serious impact on the marine environment. These accidents are not easily accessible to high-risk, bad weather environments, so satellite-based wide-area HNS remote sensing technology development is needed. However, prior to technology development through actual satellite observation, basic knowledge accumulation and algorithm development should be preceded by in-situ observations. As a basic study, this study analyzed the optical characteristics of oil leaking out from the GS-Caltex oil pipeline during the approaching process by the oil tanker Wu Yi San in the sea nearYeosu in 2014. The ASD Spectroradiometer optical observation device capable of measuring the wavelength band of 350-2500 nm was used during the sunshine condition from 11:00 am to 2:00 pm, and the remote reflection difference of the oil according to various forms such as oil film, oil lump, Respectively. As a result, it showed significant characteristics not only in the visible light channel but also in the infrared channel. In addition, the characteristics of oil inherent reflectivity were analyzed through comparison with general sea water.