| 福岛核事故泄漏入海的137Cs长期输运的数值研究 |
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| 引用本文： | 赵昌,王刚,乔方利,王关锁,Kyung-TaeJUNG,夏长水.福岛核事故泄漏入海的137Cs长期输运的数值研究[J].海洋学报(英文版),2015,34(12):37-43. |
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| 作者姓名： | 赵昌 王刚 乔方利 王关锁 Kyung-TaeJUNG 夏长水 |
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| 作者单位： | 国家海洋局第一海洋研究所, 山东青岛 266061,国家海洋局第一海洋研究所, 山东青岛 266061,国家海洋局第一海洋研究所, 山东青岛 266061,国家海洋局第一海洋研究所, 山东青岛 266061,Korea Institute of Ocean Science and Technology, Republic of Korea,国家海洋局第一海洋研究所, 山东青岛 266061 |
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| 基金项目： | The China-Korea Cooperation Project on the Development of Oceanic Monitoring and Prediction System on Nuclear Safety; the Youth Foundation of the First Institute of Oceanography (FIO), State Oceanic Administration of China, under contract Nos GY0215P01 and GY2015P03; the Project of the National Programme on Global Change and Air-sea Interaction under contract No. GASI-03-IPOVAI-05; the NSFC-Shandong Joint Fund of Marine Science Research Centers of China under contract No. U1406404; the National Natural Science Foundation of China Project under contract No. 41506035; the KIOST Project under contract No. PE99304. |
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| 摘 要： | The Fukushima nuclear accident in 2011 released large amounts of radionuclides, including ~(137)Cs, into the Pacific Ocean. A quasi-global ocean radioactive transport model with horizontal grid spacing of 0.5°×0.5° and 21 vertical layers was thereafter established to study the long-term transport of the Fukushima-derived ~(137)Cs in the ocean.The simulation shows that the plume of ~(137)Cs would be rapidly transported eastward alongside the Kuroshio Current and its extensions. Contaminated waters with concentrations lower than 2 Bq/m3 would reach the west coast of North America 4 or 5 years after the accident. The ~(137)Cs tends to be carried, despite its very low concentration, into the Indian and South Pacific Oceans by 2016 via various branches of ocean currents.Meanwhile, the ~(137)Cs concentrations in the western part of the North Pacific Ocean decrease rapidly with time. Up to now the highly contaminated waters have remained in the upper 400 m, showing no evidence of significant penetration to deeper layers.
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| 关 键 词： | 福岛核事故 铯-137 放射性物质模式 黑潮 |
| 收稿时间： | 2015/7/20 0:00:00 |
| 修稿时间： | 2015/9/21 0:00:00 |
A numerical investigation into the long-term behaviors of Fukushima-derived 137Cs in the ocean |
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| ZHAO Chang,WANG Gang,QIAO Fangli,WANG Guansuo,JUNG Kyung-Tae and XIA Changshui.A numerical investigation into the long-term behaviors of Fukushima-derived 137Cs in the ocean[J].Acta Oceanologica Sinica,2015,34(12):37-43. |
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| Authors: | ZHAO Chang WANG Gang QIAO Fangli WANG Guansuo JUNG Kyung-Tae and XIA Changshui |
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| Institution: | 1.Key Laboratory of Marine Science and Numerical Modeling, the First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China2.Korea Institute of Ocean Science and Technology, Ansan 15627, Republic of Korea |
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| Abstract: | The Fukushima nuclear accident in 2011 released large amounts of radionuclides, including 137Cs, into the Pacific Ocean. A quasi-global ocean radioactive transport model with horizontal grid spacing of 0.5°×0.5° and 21 vertical layers was thereafter established to study the long-term transport of the Fukushima-derived 137Cs in the ocean. The simulation shows that the plume of 137Cs would be rapidly transported eastward alongside the Kuroshio Current and its extensions. Contaminated waters with concentrations lower than 2 Bq/m3 would reach the west coast of North America 4 or 5 years after the accident. The 137Cs tends to be carried, despite its very low concentration, into the Indian and South Pacific Oceans by 2016 via various branches of ocean currents. Meanwhile, the 137Cs concentrations in the western part of the North Pacific Ocean decrease rapidly with time. Up to now the highly contaminated waters have remained in the upper 400 m, showing no evidence of significant penetration to deeper layers. |
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| Keywords: | Fukushima accident 137Cs radioactivity model Kuroshio |
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