RAPID: Reconnaissance Survey of Activity Concentrations Following the 11 March 2011 Japan Tsunami

快速反应研究基金（Rapid Response Research Grant，简称RAPID）是一项旨在收集2011年3月11日日本地震和海啸的短暂数据的研究。 数据将从日本和美国北方马里亚纳群岛联邦收集。 PI和同事们在2011年3月11日东北海啸后访问了该地区，并记录了上升和海啸电流。他们还采集了土壤和水样本，以确定碘和铯的放射性同位素的浓度。 其中一些样本表明浓度比其他样本报告的浓度高一个数量级。 在这个项目中，将从塞班岛、天宁岛和罗塔岛获得关于海啸上升的更多数据。 海啸的目击者将被联系以获得更多信息。 还将从以前在日本取样的同一地点采集表土样本，以验证最初的发现。收集的海啸上升数据将有助于完善现有的东北海啸上升测量数据库。这些数据可用于验证由NOAA制作的北方马里亚纳群岛海啸淹没图。 有关放射性铯浓度的数据将有助于确定日本受损核电站释放的放射性元素的规模和区域扩散。

This Rapid Response Research Grant (RAPID) award is for the collection of ephemeral data from the March 11, 2011 Japanese earthquake and tsunami. Data will be collected from locations in Japan and the US Commonwealth of the Northern Mariana Islands. The PI and colleagues had visited the area following the 11 March 2011 Tohoku tsunami and recorded runup and tsunami currents. They also took soil and water samples for determination of concentrations of radioactive isotopes of Iodine and Cesium. A few of these samples suggested concentrations one order of magnitude higher than reported by others. In this project, additional data on tsunami runup will be obtained from Saipan, Tinian and Rota. Eyewitnesses to the tsunami will be contacted for additional information. Topsoil samples will be also obtained from the same sites previously sampled in Japan to validate the original findings.The data collected on tsunami runup will help to complete existing databases on runup measurements from the Tohoku tsunami. These data can be used to validate tsunami inundation maps produced by NOAA for the Northern Mariana Islands. The data on concentrations of radioactive Cesium will help determine the magnitude and areal dispersion of radioactive elements released from the damaged nuclear power plants in Japan.