Acoustic surveillance for hazardous eruptions (ASHE)
Acoustic surveillance for hazardous eruptions (ASHE)
复制标题
危险喷发声学监测 (ASHE)
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
H. Yepes
中科院分区：
文献类型：
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作者：
D. Mccormack;H. Bass;M. Garcés;H. Yepes
一段时间以来，环境声学和航空安全界一直在讨论利用次声快速识别火山爆发的潜力。0.01-10 Hz范围内的声音能够长距离传播，几乎没有衰减，这表明可以通过少量的观测点进行大面积区域监测。ASHE实验测试了次声作为区域规模火山喷发检测工具的实用性，以及使用这种次声系统通过火山灰咨询中心（VAAC）向航空提供及时操作警报的可行性。几个次声阵列部署在火山地区，发送数据在真实的时间到中央探测器，并向前参与VAAC与现有的预警系统进行比较。ASHE实验将确定次声是否可以补充地震和卫星观测，以改进对火山灾害的监测。持续的声音监视可以...
The potential of using infrasound to rapidly identify explosive volcanic eruptions has been discussed in the environmental acoustics and aviation safety communities for some time. The ability of sounds in the 0.01–10 Hz range to propagate for long distances with little attenuation suggests broad‐area regional monitoring with a modest number of observing sites is possible. The ASHE experiment tests both the practical utility of infrasound as a regional‐scale volcanic eruption detection tool, and the feasibility of using such an infrasound system to provide timely operational alerts to aviation through Volcanic Ash Advisory Centres (VAACs). Several infrasound arrays are deployed in a volcanic region, sending data in real time to a central detector, and onward to participating VAACs for comparison with existing warning systems. The ASHE experiment will determine if infrasound can complement both seismic and satellite observations to improve monitoring of volcanic hazard. Continuous acoustic surveillance can ...