초록

본 연구는 3개년 사업으로 계획하여 수행중인 연구사업 중 제 2차년도 사업으로서 당해년도의 내용과 범위는 다음과 같다.
0 마산만의 해양일반 및 수질조사
0 마산만 유입하천의 유량, 오염부하량 조사
0 해수유동모형의 적용
0 폐쇄성 해역의 수질예측모형의 개발

Abstract ▼

The southern and western coasts of Korean Peninsula have very long and complicated coastlines with over three thousands of small islands. Because of these geographical conditions, there are numerous enclosed or semi-enclosed coastal seas which keep in very calm of sea-state because of the protection

The southern and western coasts of Korean Peninsula have very long and complicated coastlines with over three thousands of small islands. Because of these geographical conditions, there are numerous enclosed or semi-enclosed coastal seas which keep in very calm of sea-state because of the protection of incoming strong waves and currents from the open sea. These enclosed seas are highly productive, providing for breeding, spawning, and nursery habitate for many fish and shellfish. However, they are also very vulnerable to contamination because of the poor exchange of sea water with the open sea.
During the last three decades of the rapid economic growth in Korea, pollutant discharge into coastal waters has been increasing due to industrialization, urbanization and establishment of industrial complexes in the coastal region. Since the early of 1980` s water quality in the enclosed coastal seas has been deteriorating at a rapid pace, which causes severe environmental damages, especially to mariculture and fisheries.
In the recent years, water pollution in the enclosed bays and seas in Korea has been arising as very important environmental and social issues. In order to protect coastal pollution and to conserve marine resources, integrated environmental management and appropriate use of enclosed coastal seas are utmostly needed.
The present study for three years of 1992-1995 has been planned to develope a water quality control and management system for the enclosed coastal seas in Korea. The study area was selected as Masan Bay which is an inner bay of Jinhae Bay. This bay has a typical geomorphic character of an enclosed coastal sea and the worst condition of water pollution in Korea.
The second-year study(1993-1994) has emphasized on basic field-survey of water quality about major parameters affecting to the water pollution in the bay. The inflow loads of contaminants through several streams were monitored regularly to get an information on pollutant sources. The hodrologic anaysis was conducted to get an information of flowrate discharging into Masan Bay. For the first step to develope a water-quality management system of an enclosed coastal sea, a three-dimensional, time-dependent, finite difference model for water-mass circulation in Masan-Jinhae Bay has been set up to calculate detailed circulation patterns of Masan-Jinhae Bay. The simulated results are quite a good to simulate the fine structures of 3-D circulations in the bay although there are some improvements to be needed for the real case including the stratification effect due to freshwater inflow, temperature and salinity.
The next step based on the 3- D circulation model is to develope a transport model including the material cycle processes of nutrients and COD as a water-quality index for coastal water. From the mornitoring data of pollutant sources, a loading model in Masan Bay will be developed. These models will be main softwares building the sub-systems of the water-quality control and management system. The final system can be used for policy analysis and evaluation processes which sometimes have to resolve the complicated problems of technological and administrative counter-measures to improve water quality in enclosed coastal seas. But this study was early stopped by new guideline of research project of government.

목차 Contents

• 제1장 서론 ...21
• 제2장 마산만 유입하천의 수문해석 ...23
• 제1절 유역 현황 ...23
• 제2절 미계측 유역의 월 유출량 산정 ...24
• 제3절 합성단위도에 의한 유출해석 ...31
• 제4절 비교고찰 ...51
• 제3장 마산만의 수질 및 오염부하량 조사 ...59
• 제1절 조석관측 ...59
• 제2절 유입하천의 유량조사 ...60
• 제3절 하천별 오염부하량 조사 ...65
• 제4장 폐쇄성 해역의 수질예측모형 ...79
• 제1절 서언 ...79
• 제2절 3차원 해수유동 수치모형 ...80
• 제3절 마산, 진해만에의 적용 ...96
• 제5장 결론 및 제언 ...123
• 참고문헌 ...125
• 부록 ...127