Spatial and Temporal Aspects of Phytoplankton Blooms in Complex Ecosystems Off the Korean Coast from Satellite Ocean Color Observations SCIE KCI OTHER

Cited 16 time in WEB OF SCIENCE
Title
Spatial and Temporal Aspects of Phytoplankton Blooms in Complex Ecosystems Off the Korean Coast from Satellite Ocean Color Observations
Author(s)
Ahn, Yu-Hwan; Shanmugam, Palanisamy; Chang, Kyung-Il; Moon, Jeong-Eon; Ryu, Joo-Hyung
KIOST Author(s)
Moon, Jeong Eon(문정언)Ryu, Joo Hyung(유주형)
Publication Year
2005-06
Abstract
Complex physical, chemical and biological interactions off the Korean coast created several striking patterns in the phytoplankton blooms, which became conspicuous during the measurements of ocean color from space. This study concentrated on analyzing the spatial and temporal aspects of phytoplankton chlorophyll variability in these areas using an integrated dataset from a Sea-viewing Wide Field-of-view Sensor (SeaWiFS), Advanced Very High Resolution (AVHRR) sensor, and Conductivity Temperature Depth (CTD) sensor. The results showed that chlorophyll concentrations were elevated in coastal and open ocean regions, with strong summer and fall blooms, which appeared to spread out in most of the enclosed bays and neighboring waters due to certain oceanographic processes. The chlorophyll concentration was observed to range between 3 and 54 mg m(-3) inside Jin-hae Bay and adjacent coastal bays and 0.5 and 8 mg m(-3) in the southeast sea offshore waters, this gradual decrease towards oceanic waters suggested physical transports of phytoplankton blooms from the shallow shelves to slope waters through the influence of the Tsushima Warm Current (TWC) along the Tsushima Strait. Horizontal distribution of potential temperature (.) and salinity (S) of water off the southeastern coast exhibited cold and low saline surface water (theta<19 degrees C; S<32.4) and warm and high saline subsurface water (theta>12 degrees C; S>34.4) at 75dBar, corroborating TWC intrusion along the Tsushima Strait. An eastward branch of this current was called the East Korean Warm Current (EKWC), tracked with the help of CTD data and satellite-derived sea surface temperature, which often influenced the dynamics of mesoscale anticyclonic eddy fields off the Korean east coast during the summer season. The process of such mesoscale anticyclonic eddy features might have produced interior upwelling that could have shoaled and steepened the nutricline, enhancing phytoplankton population by advection or diffusion of nutrients in the vicinity of Ulleungdo in the East Sea.
ISSN
1738-5261
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5067
DOI
10.1007/BF03028587
Bibliographic Citation
OCEAN SCIENCE JOURNAL, v.40, no.2, pp.67 - 78, 2005
Publisher
KOREA OCEAN RESEARCH DEVELOPMENT INST
Keywords
remote sensing; complex ecosystem; phytoplankton blooms; upwelling; anticyclonic eddy; SeaWiFS; AVHRR; CTD survey
Type
Article
Language
English
Document Type
Article
Publisher
KOREA OCEAN RESEARCH DEVELOPMENT INST
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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