Climate Change Data Portal
| DOI | 10.1088/1748-9326/ab83a9 |
| The fallout from Fukushima Daiichi nuclear accident profiles a new dating reference in ice and comparison with the Chernobyl accident | |
| Wang F.; Ming J.; Edwards R.; Li Z.; Wang N. | |
| 发表日期 | 2020 |
| ISSN | 17489318 |
| 卷号 | 15期号:8 |
| 英文摘要 | Absolute-age dating horizons play a pillar role in the reconstruction of an ice core chronology. In the modern era, these have included the global fallout from massive volcanic eruptions, atmospheric and marine thermonuclear weapons testing and nuclear accidents. After the occurrence of the Fukushima Daiichi nuclear accident (FDNA) on March 11 2011, the simulation of the radioactivity from the FDNA by a dispersion model (HYSPLIT) shows that the nuclides reached the study area in late March, consistent with the ground measurements in Xi'an, Lanzhou and Urumqi. To investigate the deposition of radioactivity resulting from the FDNA, we collected snowpack samples from four glaciers (i.e. Glacier No. 1, Glacier No. 72, Qiyi and Shiyi glaciers, respectively) in northwestern China and analysed them for total β activity (TBA). The measured TBA in the FDNA layers were increased by two to four times, compared with the averages in the non-FDNA layers. We revisited Glacier No. 1 in 2018 and studied a much deeper snow-pit profile for the TBA, seven years after the first-time investigation into a relatively shallow snow pit in 2011. The TBA concentrated in a dust layer and became more significant in 2018 compared to that in 2011. We compared the TBA in Glacier No. 1 with that in the Muztagata glacier from the Chernobyl accident in 1986, and the depositions of radioactivity in the two High-Asian glaciers were comparable. We conclude that the FDNA formed a distinctly new lasting reference in the snow, which could help date the snow and ice in the Northern Hemisphere. © 2020 The Author(s). Published by IOP Publishing Ltd. |
| 英文关键词 | dating; Fukushima; radioactivity; snow and ice; total β activity |
| 语种 | 英语 |
| scopus关键词 | Deposition; Fallout; Ice; Nuclear weapons; Radiation; Radioactivity; Snow; Volcanoes; Chernobyl accident; Dispersion modeling; Fukushima daiichi; Ground measurements; Northern Hemispheres; Northwestern China; Nuclear accidents; Volcanic eruptions; Nuclear reactor accidents; Chernobyl accident; chronology; glacier; ice core; Northern Hemisphere; nuclear accident; numerical model; simulation; snowpack; volcanic eruption; China; Muztagata; Pamirs; Shaanxi; Urumqi; Xian; Xinjiang Uygur |
| 来源期刊 | Environmental Research Letters
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/153886 |
| 作者单位 | State Key Laboratory of Cryospheric Science/Tien Shan Glaciological Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China; Beacon Science and Consulting, Doncaster East, VIC 3109, Australia; Wisconsin State Laboratory of Hygiene, University of Wisconsin-Madison, Madison, WI 53706, United States; Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, Northwest University, Xi'an, China |
| 推荐引用方式 GB/T 7714 | Wang F.,Ming J.,Edwards R.,et al. The fallout from Fukushima Daiichi nuclear accident profiles a new dating reference in ice and comparison with the Chernobyl accident[J],2020,15(8). |
| APA | Wang F.,Ming J.,Edwards R.,Li Z.,&Wang N..(2020).The fallout from Fukushima Daiichi nuclear accident profiles a new dating reference in ice and comparison with the Chernobyl accident.Environmental Research Letters,15(8). |
| MLA | Wang F.,et al."The fallout from Fukushima Daiichi nuclear accident profiles a new dating reference in ice and comparison with the Chernobyl accident".Environmental Research Letters 15.8(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
