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Physiochemical Characteristics of Coastal Pseudo-Estuarine Environment Formed During the Summer Flood season in the South Coast of Korea  

임동일 (한국해양연구원 지구환경연구본부)
엄인권 (한국해양연구원 지구환경연구본부)
전수경 (목포대학교 해양자원학과)
유재명 (한국해양연구원 생태환경연구본부)
정회수 (한국해양연구원 지구환경연구본부)
Publication Information
The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY / v.8, no.2, 2003 , pp. 151-163 More about this Journal
Abstract
In this study, we investigated the physiochemical characteristics of temporal estuarine environment formed during the summer flood season (consecutive rainy days with average 50 mm day$^{-1}$ precipitation) in the coastal area of South Sea of Korea. The freshwater from the Seomjin River was characterized by lower temperature, salinity and pH, and high concentrations of COD and nutrients. In the summer flood season, such peculiar Somejin-River freshwater was dispersed southward along the coast of Yeosubando-Dolsando-Geumodo, form-ing temporal estuarine environment (defined as "Coastal Pseudo-Estuary" in this study) throughout the entire study area (as far as 60 km from the Seomjin River mouth). Compared to the winter dry season, the DIN/DIP ratio was almost doubled (16-36) during the summer flood season. This excessive nitrate supply during the summer flood season was probably due to nitrogenous fertilizer. Distribution and behaviors of physiochemical factors in this coastal pseudo-estuarine environment were controlled not only by the runoff of the Seomjun River (physical mixing of river water with seawater) but also by the biogeochemical estuarine processes which are mostly similar to those of the river estuary.r estuary.
Keywords
Coastal Pseudo-Estuary; Physiochemical Charateristics; DIN/DIP Ratio; South Coast;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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