해색원격탐사를 이용한 동해의 역동성

Title
해색원격탐사를 이용한 동해의 역동성
Alternative Title
East Sea dynamics from the satellite ocean color observations
Author(s)
안유환; Shanmugam; 장경일; 문정언; 유주형
KIOST Author(s)
Moon, Jeong Eon(문정언)Ryu, Joo Hyung(유주형)
Publication Year
2004-11-04
Abstract
The semi-enclosed nature of East Sea (ES) of the northwestern Pacific Ocean having subtropical and subarctic circulations bounded by the subarctic front encompasses complex physical, biological and chemical processes associated with the formation of numerous recurring eddy features (Fig. 1). These eddies occur at different time scales and have a large influence on the spatial and temporal dynamics of phytoplankton blooms in the East Sea. The present study analyzes these phenomena using SeaWiFS and AVHRR as well as in-situ data Concurrently, hydrographic parameters measured with the CTD sensors are used to elucidate physical factors affecting the spatial distribution and abundance of phytoplankton blooms. Horizontal distributions of potential temperature () and salinity of water off the eastern coast show cold and low saline surface water along the coast and warm and high saline subsurface water offshore, indicative of the northward flow of East Korean Warm Current (EKWC), which deserves important focus as a recurring and energetic feature influencing the dynamics of mesoscale anticyclonic eddy fields in the central East Sea. The process of formation and decay of such eddies often produce interior upwelling that shoals and steepens the nutricline, enhancing phytoplankton population by advection or diffusion of nutrients. The enhanced Chl-a concentration associated with these eddies are attributable to populations of dinoflagellates and diatoms because the region of the eddy formation appears to be strongly connected with EKWC and NKCC waters.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/31675
Bibliographic Citation
Proceedings of the Autumn Meeting of the Korean Society of Oceanography, pp.111 - 117, 2004
Publisher
한국해양학회
Type
Conference
Language
English
Publisher
한국해양학회
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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