Ocean Circulation Model ing of East Sea for Aquatic Dispersion of Liquid Radioactive Effluents from Nuclear Power Plants 원전 액체 방사성 유출물 해양확산 평가를 위한 동해 해수순환 모델링원문보기
Chung, Yang-Geun
(Korea Electric Power Research Institute)
,
Lee, Gab-Bock
(Korea Electric Power Research Institute)
,
Bang, Sun-Young
(Korea Electric Power Research Institute)
,
Lee, Ung-Gwon
(Korea Hydro & Nuclear Power Co., LTD)
,
Lee, Yong-Sun
(Korea Hydro & Nuclear Power Co., LTD)
과학기술부고시 2003-12호 "원자로시설부지 수문 및 해양특성 조사평가 기준" 이 신규 제정되어, 원전 액체 방사성 유출물에 대한 삼차원적인 해양확산 평가 필요성이 커지고 있다. 한국수력원자력(주)와 전력연구원은 신고리, 신월성, 신울진 원 전등 다수의 신규원전 건설이 계획 또는 추진되고 있는 동해안을 대상으로 광역 및 부지별 입지특성을 반영한 해양확산 평가기술을 개발하고 있다. 동해안의 해수유동은 동해 해수순환에 의해 영향을 받기 때문에 원전 주변의 방사성 물질의 해양확산을 보다 정확히 평가하기 위해서는 동해 해수순환에 대한 이해가 선행되어야한다. 따라서 본 연구에서는 일본 큐슈대학교 응용역학연구소에서 개발한 RIAMOM 모델을 근간으로 동해 해수순환 모델링을 수행하였다. 모델 영역은 $126.5^{\circ}E{\~}142.5^{\circ}E$$33^{\circ}N{\~}52^{\circ}N$, 수직층은 20개로 나누었다. 이 모델은 JODC, KNFRDI, 그리고 ECMWF로 부터 구하였다. 모델링 결과, 동해 해수순환을 비교적 잘 모의하고 있는 것으로 나타났다. 향후 모델링 결과를 정량적으로 평가하기 위해 인공위성 추적 부이를 이용하여 확산 검증 실험을 실시할 예정이다.
과학기술부고시 2003-12호 "원자로시설부지 수문 및 해양특성 조사평가 기준" 이 신규 제정되어, 원전 액체 방사성 유출물에 대한 삼차원적인 해양확산 평가 필요성이 커지고 있다. 한국수력원자력(주)와 전력연구원은 신고리, 신월성, 신울진 원 전등 다수의 신규원전 건설이 계획 또는 추진되고 있는 동해안을 대상으로 광역 및 부지별 입지특성을 반영한 해양확산 평가기술을 개발하고 있다. 동해안의 해수유동은 동해 해수순환에 의해 영향을 받기 때문에 원전 주변의 방사성 물질의 해양확산을 보다 정확히 평가하기 위해서는 동해 해수순환에 대한 이해가 선행되어야한다. 따라서 본 연구에서는 일본 큐슈대학교 응용역학연구소에서 개발한 RIAMOM 모델을 근간으로 동해 해수순환 모델링을 수행하였다. 모델 영역은 $126.5^{\circ}E{\~}142.5^{\circ}E$$33^{\circ}N{\~}52^{\circ}N$, 수직층은 20개로 나누었다. 이 모델은 JODC, KNFRDI, 그리고 ECMWF로 부터 구하였다. 모델링 결과, 동해 해수순환을 비교적 잘 모의하고 있는 것으로 나타났다. 향후 모델링 결과를 정량적으로 평가하기 위해 인공위성 추적 부이를 이용하여 확산 검증 실험을 실시할 예정이다.
Recently. three-dimensional models have been used for aquatic dispersion of radioactive effluents in relation to nuclear power plant siting based on the Notice No. 2003-12 'Guideline for investigating and assessing hydrological and aquatic characteristics of nuclear facility site' of the Ministry of...
Recently. three-dimensional models have been used for aquatic dispersion of radioactive effluents in relation to nuclear power plant siting based on the Notice No. 2003-12 'Guideline for investigating and assessing hydrological and aquatic characteristics of nuclear facility site' of the Ministry of Science and Technology (MOST) in Korea. Several nuclear power plants have been under construction or planed. which are Shin-Korl Unit 1 and 2, Shin-Wolsong Unit 1 and 2, and Shln-Ulchin Unit 1 and 2. For assessing the aquatic dispersion of radionuclides released from the above nuclear power plants, it is necessary to know the coastal currents around sites which are affected by circulation of East Sea. In this study, a three dimensional hydrodynamic model for the circulation of the East Sea of Korea has been developed as the first Phase, which Is based on the RIAMOM. The model uses the primitive equation with hydrostatic approximation, and uses Arakawa-B grid system horizontally and Z-coordinate vertically. Model domain is $126.5^{\circ}E\;to\;142.5^{\circ}E$ of east longitude and $33^{\circ}N\;and\;52^{\circ}N$ of the north latitude. The space of the horizontal grid was $1/12^{\circ}$ to longitude and latitude direction and vortical level was divided to 20. This model uses Generalized Arakawa Scheme. Slant Advection, and Mode-Splitting Method. The input data were from JODC, KNFRDI, and ECMWF. The model ing results are in fairly good agreement with schematic patterns of the surface circulation in the East Sea The local current model and aquatic dispersion model of the coastal region will be developed as the second phase. The oceanic dispersion experiments will be also tarried out by using ARGO Drifter around a nuclear pelter plant site.
Recently. three-dimensional models have been used for aquatic dispersion of radioactive effluents in relation to nuclear power plant siting based on the Notice No. 2003-12 'Guideline for investigating and assessing hydrological and aquatic characteristics of nuclear facility site' of the Ministry of Science and Technology (MOST) in Korea. Several nuclear power plants have been under construction or planed. which are Shin-Korl Unit 1 and 2, Shin-Wolsong Unit 1 and 2, and Shln-Ulchin Unit 1 and 2. For assessing the aquatic dispersion of radionuclides released from the above nuclear power plants, it is necessary to know the coastal currents around sites which are affected by circulation of East Sea. In this study, a three dimensional hydrodynamic model for the circulation of the East Sea of Korea has been developed as the first Phase, which Is based on the RIAMOM. The model uses the primitive equation with hydrostatic approximation, and uses Arakawa-B grid system horizontally and Z-coordinate vertically. Model domain is $126.5^{\circ}E\;to\;142.5^{\circ}E$ of east longitude and $33^{\circ}N\;and\;52^{\circ}N$ of the north latitude. The space of the horizontal grid was $1/12^{\circ}$ to longitude and latitude direction and vortical level was divided to 20. This model uses Generalized Arakawa Scheme. Slant Advection, and Mode-Splitting Method. The input data were from JODC, KNFRDI, and ECMWF. The model ing results are in fairly good agreement with schematic patterns of the surface circulation in the East Sea The local current model and aquatic dispersion model of the coastal region will be developed as the second phase. The oceanic dispersion experiments will be also tarried out by using ARGO Drifter around a nuclear pelter plant site.
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대상 데이터
0 °N in latitude. The inflow regions of the model are Jeju Strait and the west coast of Kyushu and the outflow regions are Tsugaru Strait and Soya Strait (Fig. 1). Both of the latitudinal and longitudinal grid intervals are chosen as 1/12°.
The model domain and basic grid configuration taken in this study are identical the those of Kim [6]. The model area covers the sea region from 126.5°E to 142.5 °E in longitude and from 33.0 °N to 52.0 °N in latitude. The inflow regions of the model are Jeju Strait and the west coast of Kyushu and the outflow regions are Tsugaru Strait and Soya Strait (Fig.
S Navy's monthly mead temperature and salinity data.The source of GDEM is the U.S. Navy's Master Oceanography Observation Data Set (MOODS), which is a composite dataset based on observations from various sources from 1930-97 [13]. Fig.
이론/모형
For assessing aquatic dispersion of radioact ive ef fluent s in relation to nuclear power plant siting, athree dimensional hydrodynamic model for the circulation of the East Sea of Korea has been developed as the first phase of the this study. The model is based on the RIAMOM (Research Institute of Applied Mechanics' Ocean Mode 1, Kyushu University, Japan).
성능/효과
Considerable differences between themode 1 results and the GDEM data are however seemingly apparent. It is noted that the difference between the model results and the GDEM data gradually increases below 50 m; more diffusive forms of thermocline and halocline have been simulated than noted in the GDEM data. The difference is about 2oC in temperature and 0.
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