RAPID: Tracking Radioactive Fallout from the Fukushima Dai-ichi Disaster in Arctic Snow

RAPID：追踪北极雪中福岛第一核电站灾难的放射性尘埃

• 批准号: 1140098
• 负责人: Erich Osterberg
• 金额: $ 3.78万
• 依托单位: Dartmouth College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-07-01 至 2012-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1140098&HistoricalAwards=false
• 关键词: RAPID; Tracking; Radioactive; Fallout; Fukushima

The goal of this project is to investigate the long-range transport of radioactive material from the March 2011 Fukushima Daiichi nuclear reactor incident to sites in Alaska (Denali National Park) and Greenland (Thule and Summit Station). Fallout from the accident at these sites could potentially be used as a time marker in future studies of ice and snow samples from these areas, just as fallout from weapons testing and the Chernobyl incident are used to date samples from 1958-1963 and 1986, respectively. Such future applications rely on immediate data collection to establish the pattern and concentration of fallout, and to identify the Fukushima horizon based on "signatures" of short-lived isotopes, so that later samples collected after the shorter-lived isotopes have decayed can be identified. This study will also provide insight into transport pathways of other atmospheric materials and pollutants from Asia to Alaska and Greenland. This project incorporates the participation of several graduate students in collecting samples at all three field locations, including students enrolled in the Dartmouth Polar Environmental Change IGERT program. An undergraduate student will participate in the Alaska fieldwork and the laboratory analyses.

该项目的目标是调查2011年3月福岛第一核反应堆事故中放射性物质向阿拉斯加（德纳利国家公园）和格陵兰（图勒和萨米特站）地点的远距离迁移。这些地点的事故沉降物可能被用作未来研究这些地区冰雪样本的时间标记，就像武器试验和切尔诺贝利事件的沉降物分别用于确定1958-1963年和1986年样本的日期一样。这种未来的应用依赖于立即收集数据，以确定沉降物的模式和浓度，并根据短寿命同位素的“特征”确定福岛地平线，以便能够确定在短寿命同位素衰变后收集的样本。这项研究还将深入了解其他大气物质和污染物从亚洲到阿拉斯加和格陵兰的运输途径。该项目包括几名研究生在所有三个实地地点收集样本的参与，其中包括参加达特茅斯极地环境变化IGERT方案的学生。一名本科生将参加阿拉斯加的实地考察和实验室分析。