Improving tsunami warning using commercial ships
Improving tsunami warning using commercial ships
复制标题
利用商船改善海啸预警
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
M. Merrifield
中科院分区：
文献类型：
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作者：
J. Foster;B. Brooks;Dailin Wang;G. Carter;M. Merrifield
准确和迅速地探测和评估海啸对有效减灾至关重要。我们在这里展示了2010年2月27日智利马乌莱M8.8地震中的一次适度的10厘米海啸，是通过运动学全球定位系统（GPS）解决方案从一艘正在公海航行的船上探测到的，这是第一次实现船上海啸探测。我们的研究结果说明了商业船队是如何代表一个巨大的基础设施，潜在的公海GPS平台的航道，提供了非常好的空间覆盖大多数海啸源地区。考虑到大地测量GPS系统的可负担性和不断改进的卫星通信，有可能为很大一部分船队配备真实的实时流GPS系统，并创建一个具有更密集和更分布式覆盖的具有成本效益的海啸监测网络。我们预计，这样一个系统将在不到一个小时的时间内检测到2004年印度洋海啸。
Accurate and rapid detection and assessment of tsunamis is critical for effective mitigation. We show here that a modest ∼10 cm tsunami from the M8.8 27 Feb 2010 Maule, Chile earthquake was detected by kinematic Global Positions System (GPS) solutions from a ship underway in the open ocean ‐ the first time shipboard tsunami detection has been achieved. Our results illustrate how the commercial shipping fleet represents a vast infrastructure of potential open ocean GPS platforms on shipping lanes that provide extremely good spatial coverage around most tsunamigenic source regions. Given the affordability of geodetic GPS systems, and ever‐improving satellite communications, it would be possible to equip a significant portion of the shipping fleet with real‐time‐streamed GPS systems and create a cost‐effective tsunami monitoring network with denser and more distributed coverage. We project that such a system would have detected the 2004 Indian Ocean tsunami in less than an hour.