PRELIMINARY RESULTS OF SEA SURFACE SALINITY MAPPING AROUND KOREAN COASTAL WATERS USING OCEAN COLOUR SATELLITE IMAGES AND IN-SITU MEASUREMENTS

Title
PRELIMINARY RESULTS OF SEA SURFACE SALINITY MAPPING AROUND KOREAN COASTAL WATERS USING OCEAN COLOUR SATELLITE IMAGES AND IN-SITU MEASUREMENTS
Author(s)
황득재; 최종국; 김범준; 이윤경; 문정언
KIOST Author(s)
Hwang, Deuk Jae(황득재)Choi, Jong Kuk(최종국)Moon, Jeong Eon(문정언)
Publication Year
2016-04-20
Abstract
Sea surface temperature (SST) and sea surface salinity (SSS) are the most important parameters in the ocean science to estimate carbon flux between atmosphere and ocean surface. SST can be easily obtained by various ocean satellite sensors like MODIS, SeaWiFS, etc. While SSS can be estimated by microwave sensors such as SMOS and Aquarius, it is hard to obtain remotely sensed SSS in the Korean coastal waters due to their low spatial and temporal resolutions. As an alternative way of obtaining SSS data in the coastal region, we can use coloured dissolved organic matter (CDOM) absorption coefficient which has been known to have a high correlation with SSS in coastal region in relation to freshwater inflow from the land. That coefficient can be obtained from ocean color satellite data such as GOCI and MODIS. Here, we estimated SSS around Korean coastal waters by using the relationship between in-situ measured SSS and CDOM absorption coefficient, from which an empirical algorithm was developed to generate the SSS map from remotely sensed data. This preliminary result revealed that a further study on SSS mapping in the open ocean using remotely sensed data would be meaningful.like MODIS, SeaWiFS, etc. While SSS can be estimated by microwave sensors such as SMOS and Aquarius, it is hard to obtain remotely sensed SSS in the Korean coastal waters due to their low spatial and temporal resolutions. As an alternative way of obtaining SSS data in the coastal region, we can use coloured dissolved organic matter (CDOM) absorption coefficient which has been known to have a high correlation with SSS in coastal region in relation to freshwater inflow from the land. That coefficient can be obtained from ocean color satellite data such as GOCI and MODIS. Here, we estimated SSS around Korean coastal waters by using the relationship between in-situ measured SSS and CDOM absorption coefficient, from which an empirical algorithm was developed to generate the SSS map from remotely sensed data. This preliminary result revealed that a further study on SSS mapping in the open ocean using remotely sensed data would be meaningful.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/24901
Bibliographic Citation
ISRS 2016, pp.1, 2016
Publisher
KSRS, RSSJ, CSPRS, EMSEA
Type
Conference
Language
English
Publisher
KSRS, RSSJ, CSPRS, EMSEA
Related Researcher
Research Interests

GOCI-based PAR,Satellite-based Water Quality,Ocean color based Ecological Environment,GOCI 기반 PAR,위성활용 해수표층 수질,해색위성 기반 해수 생태환경

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