해양 프론트 추정을 위한 천리안해양관측위성의 활용

Title
해양 프론트 추정을 위한 천리안해양관측위성의 활용
Alternative Title
Application of the Geostationary Ocean Color Imager to estimates of ocean fronts
Author(s)
양현; 최종국; 박영제; 한희정
KIOST Author(s)
Yang, Hyun(양현)Choi, Jong Kuk(최종국)Park, Young Je(박영제)
Publication Year
2017-04-11
Abstract
The Geostationary Ocean Color Imager (GOCI), the world’s first ocean color sensor operated in the geostationary orbit, can be utilized to analyze subtle changes on the ocean surface because it observes ocean colors around the Northeast Asia hourly, for eight times a day. This study focused on a method estimating ocean fronts using GOCI. We proposed a histogram-based methodology for extracting ocean fronts from hourly observed GOCI images. In order to analyze tidal movements in the coastal region having semi-diurnal tides and extremely high turbidities, Total suspended sediment (TSS)-derived fronts were used. Using TSS-derived fronts, we were able to trace movements of semi-diurnal tides and found out that the fronts are quite relevant to the submarine topography around shallow coasts. In relatively clear water, on the other hand, chlorophyll concentration (chl)-derived fronts were employed. Using chl-derived fronts, we were able to discover dynamic variations and oceanic eddies on sea areas where warm and cold waters are mixed each other.a hourly, for eight times a day. This study focused on a method estimating ocean fronts using GOCI. We proposed a histogram-based methodology for extracting ocean fronts from hourly observed GOCI images. In order to analyze tidal movements in the coastal region having semi-diurnal tides and extremely high turbidities, Total suspended sediment (TSS)-derived fronts were used. Using TSS-derived fronts, we were able to trace movements of semi-diurnal tides and found out that the fronts are quite relevant to the submarine topography around shallow coasts. In relatively clear water, on the other hand, chlorophyll concentration (chl)-derived fronts were employed. Using chl-derived fronts, we were able to discover dynamic variations and oceanic eddies on sea areas where warm and cold waters are mixed each other.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/24180
Bibliographic Citation
Pacific-Asian Marginal Seas (PAMS) Meeting, pp.136, 2017
Publisher
Korean Society of Oceanography
Type
Conference
Language
English
Publisher
Korean Society of Oceanography
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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