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| DOI | 10.1016/j.atmosenv.2021.118380 |
| An iterative application of the Green's function approach to estimate the time variation in 137Cs release to the atmosphere from the Fukushima Daiichi Nuclear Power Station | |
| Niisoe T. | |
| 发表日期 | 2021 |
| ISSN | 1352-2310 |
| 卷号 | 254 |
| 英文摘要 | The Green's function approach, which is an approach to optimize model parameters, was iteratively applied to a large number of pairs of observed and calculated values of surface air concentrations (677 pairs) and ambient dose rates (3279 pairs) to estimate the time variation in 137Cs release rate to the atmosphere from the Tokyo Electric Power Company's Fukushima Daiichi Nuclear Power Station, which was heavily damaged on March 11, 2011. Regarding surface air concentrations, observations suitable for the optimization were selected not to affect the derived release rates due to defects in the modeling framework rather than the release rates. It was found that the release rates of 97 out of a total of 497 segments with a width of 1 h in the target period were effectively optimized and that the modeled levels using the optimized release rates generally agreed well with the observed ones. The derived time variation was reasonable and consistent with that of preexisting works which were derived using another approach and broadly employed to assess the consequences of the Fukushima accident. © 2021 Elsevier Ltd |
| 关键词 | Dispersion modelFukushima accidentOptimizationRadiocesiumRelease ratesSource term |
| 语种 | 英语 |
| scopus关键词 | Electric utilities; Nuclear energy; Nuclear fuels; Nuclear reactor accidents; $+137$/Cs; Dispersion models; Fukushima accidents; Fukushima daiichi nuclear power stations; Green's function approaches; Optimisations; Radiocaesium; Release rate; Source terms; Time variations; Optimization; cesium 137; atmospheric pollution; cesium isotope; concentration (composition); nuclear power plant; optimization; air analysis; Article; atmosphere; Fukushima nuclear accident; priority journal; Fukushima [Tohoku]; Honshu; Japan; Kanto; Tokyo [Kanto] |
| 来源期刊 | ATMOSPHERIC ENVIRONMENT
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/248448 |
| 作者单位 | Regulatory Standard and Research Department, Secretariat of Nuclear Regulation Authority (S/NRA/R), Tokyo, 1068450, Japan |
| 推荐引用方式 GB/T 7714 | Niisoe T.. An iterative application of the Green's function approach to estimate the time variation in 137Cs release to the atmosphere from the Fukushima Daiichi Nuclear Power Station[J],2021,254. |
| APA | Niisoe T..(2021).An iterative application of the Green's function approach to estimate the time variation in 137Cs release to the atmosphere from the Fukushima Daiichi Nuclear Power Station.ATMOSPHERIC ENVIRONMENT,254. |
| MLA | Niisoe T.."An iterative application of the Green's function approach to estimate the time variation in 137Cs release to the atmosphere from the Fukushima Daiichi Nuclear Power Station".ATMOSPHERIC ENVIRONMENT 254(2021). |
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