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首页> 外文期刊>Pure and Applied Geophysics >Impact of Near-Field, Deep-Ocean Tsunami Observations on Forecasting the 7 December 2012 Japanese Tsunami
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Impact of Near-Field, Deep-Ocean Tsunami Observations on Forecasting the 7 December 2012 Japanese Tsunami

机译：近海深海海啸观测对2012年12月7日日本海啸预报的影响

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摘要

Following the devastating 11 March 2011 tsunami, two deep-ocean assessment and reporting of tsunamis (DART?) (DART~? and the DART~? logo are registered trademarks of the National Oceanic and Atmospheric Administration, used with permission) stations were deployed in Japanese waters by the Japanese Meteorological Agency. Two weeks after deployment, on 7 December 2012, a M_w 7.3 earthquake off Japan's Pacific coastline generated a tsunami. The tsunami was recorded at the two Japanese DARTs as early as 11 min after the earthquake origin time, which set a record as the fastest tsunami detecting time at a DART station. These data, along with those recorded at other DARTs, were used to derive a tsunami source using the National Oceanic and Atmospheric Administration tsunami forecast system. The results of our analysis show that data provided by the two nearfield Japanese DARTs can not only improve the forecast speed but also the forecast accuracy at the Japanese tide gauge stations. This study provides important guidelines for early detection and forecasting of local tsunamis.
机译：在2011年3月11日海啸灾难之后，部署了两个深海评估和报告海啸（DART？）（DART〜？和DART〜？徽标是美国国家海洋与大气管理局的注册商标，经允许使用）。日本水域由日本气象厅提供。部署两周后，2012年12月7日，日本太平洋沿岸发生7.3级M_w地震，引发了海啸。最早在地震发生后11分钟就在两个日本DART上记录了海啸，这创下了DART站最快的海啸检测时间记录。这些数据与其他DART记录的数据一起，通过美国国家海洋与大气管理局海啸预报系统用于推导海啸源。我们的分析结果表明，两个近场日本DART提供的数据不仅可以提高预报速度，而且可以提高日本潮位计站的预报精度。这项研究为早期发现和预测海啸提供了重要的指导。

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