Application of ocean colour satellite sensors to mapping sea surface salinity (SSS) around Korean coastal waters

Title
Application of ocean colour satellite sensors to mapping sea surface salinity (SSS) around Korean coastal waters
Author(s)
최종국; 황득재; 손영백; 김영호; 유주형
KIOST Author(s)
Choi, Jong Kuk(최종국)Hwang, Deuk Jae(황득재)Son, Young Baek(손영백)Ryu, Joo Hyung(유주형)
Publication Year
2019-05-17
Abstract
Estimation of ocean surface salinity from space has widely been tried mainly by passive microwave sensors such as Soil Moisture and Ocean Salinity (SMOS), Aquarius. But, the results are not satisfactory in the coastal waters due to their rough spatial resolutions. Recent enhanced technologies of ocean colour satellite sensors in terms of spatial and temporal resolution can be employed effectively to the mapping of sea surface salinity (SSS), in particular in the coastal waters, although it is still challenging. As SSS can be a good indicator of short- or long-term changes in ocean environment and consequently the climate changes, many attempts have been made to mapping SSS in the wide area of ocean surface, although little has been successful particularly in the coastal area. Although it is well-known that coloured dissolved organic matter (CDOM) absorption property has a strong correlation with SSS in the area that influenced by freshwater inflow, it is not an easy task to retrieve accurately the CDOM absorption in highly turbid coastal waters due to the non-algal particle from land. In this study, remote sensing reflectance (Rrs) from the Geostationary Ocean Colour Imager (GOCI)centred at 490 nm (band 3), 555 nm (band 4), 660 nm (band 5) have been employed and validated to map SSS in the mid-western coastal area of Korean peninsula. Empirical relationships between Rrs at three bands and SSS are derived from in-sit
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/22617
Bibliographic Citation
Living Planet Symposium 2019, pp.1, 2019
Publisher
European Space Agency
Type
Conference
Language
English
Publisher
European Space Agency
Related Researcher
Research Interests

Coastal Remote Sensing,RS based Marine Surveillance System,GOCI Series Operation,연안 원격탐사,원격탐사기반 해양감시,천리안해양관측위성 운영

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