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RISS 인기검색어
- 검색키워드
- 저자 : 오유진(Yoo Jihn Oh) (검색결과 2 건)
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오유진(Yoo Jihn Oh),이인철(In-Cheol Lee),문창용(Chang Yong Moon),광화훈(Hwa Hoon Kong) 한국해양환경·에너지학회 2007 한국해양환경공학회 학술대회논문집 Vol.2007 No.-
As a basic study to improve oxygen deficient water mass(ODW), this study analyzed the spatial and temporal variation of the water quality and investigated the characteristics of ODW in Jinhae bay, from 1989 to 2006 by observing the annual variation of water qualities, the severe polluted area was found, and the effects of a special management sea area in Masan bay and the construction of Pusan Newport on the water qualities was investigated. Finally, we estimated ODW_are, ODW_vol. and ODW_R in Jinhae bay. From the study, it is shown that overall water quality at 2000s has been improved by investigating the variations of dissolved oxygen, chemical oxygen demand, etc. From cluster analysis, Jinhae bay was classified into four regions. The four regions were defined as Southern, Central, Northern, and Eastern. ODW was occurred in all areas of Region I in 1993 and 2002~2004. ODW were not occurred in Region Ⅳ because seawater was well exchanged in the eastern part of Jinhae bay. On the other hand, ODW was generated every year in Region I, this means the southern part is the most polluted area in Jinhae bay. ODW_R was decreased in Region Ⅲ hence, it is shown that water quality of Region Ⅲ has been improved since operating wastewater treatment plant in 1994.
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이인철(In-Cheol Lee),오유진(Yoo Jihn Oh) 한국해양환경·에너지학회 2006 한국해양환경공학회 학술대회논문집 Vol.2006 No.-
Length of south to north direction of Jinhae bay is about 25 km, and width of east to west direction is about 25 km. Since 1960s, the coastland has been occupied by industrial districts, agriculture and industry complexes; hence, the population has been rapidly increased. Domestic waster water and industrial wastes have been emitted to Masan bay and Jinhae bay without enough environmental processing. Naturally, red tide has often happened since the 1970. Due to large scale red tide occurrence, it is reported that the events of marine habitats killed occurred at 1978, 1981, and 1995, respectively. Worst thing is that red tide happens regardless of season. Especially in summer, it is observed that, due to the lack of dissolved oxygen, marine products can hardly survive and it even threatens human being's health. Therefore, to investigate water quality distribution feature in Jinhae bay, total fifteen points where the construction Pusan Newport is being processed were selected from 1997 to 2005 in this study. For the purpose, cluster analysis has been done by investigating water qualities, and Jinhae bay is divided into similar territories based on the analysis. Then, by observing the annual, territorial variation of water qualities, the severe polluted areas are studied, the effects of the construction of Pusan Newport and special water quality regulation of Masan bay on the water qualities are investigated.
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