Introducing the Volcanic Unrest Index (VUI): a tool to quantify and communicate the intensity of volcanic unrest
Introducing the Volcanic Unrest Index (VUI): a tool to quantify and communicate the intensity of volcanic unrest
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火山动荡指数 (VUI) 简介：一种量化和传达火山动荡强度的工具
DOI：
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发表时间：
2015
影响因子：
3.5
通讯作者：
D. Johnston
中科院分区：
文献类型：
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作者：
S. Potter;B. Scott;G. Jolly;V. Neall;D. Johnston
准确观察和解释火山动荡现象有助于更好地预测火山爆发，从而可能挽救生命。火山动荡由火山观测站记录，可能包括地震、大地测量、脱气和/或地热现象。多变量数据集通常很复杂，可以包含各种格式的大量数据。低水平的动荡频繁记录，造成背景活动和动荡之间的区别是模糊的，尽管这些术语在动荡的文献（包括概率喷发预测模型）和火山警报级别（瓦尔）系统中广泛使用。不稳定事件的频率和强度不容易随着时间的推移或火山之间进行比较。复杂的动乱信息很难简单地传达给民防人员和其他非科学家。火山动荡指数（VUI）是为了解决这些问题而提出的。VUI的目的是提供相对于每个火山过去的动荡程度和类似火山的动荡强度的半定量评级。使用观察到的现象的工作表计算VUI。工作表中每种现象的范围都可以针对个别火山进行定制，如新西兰陶波火山中心的配套文件所示（Potter等人，2015）。VUI可以根据定性观察对历史动乱事件进行回顾性确定，也可以通过最先进的监测对最近的动乱事件进行回顾性确定。这使得能够构建一个长期的动荡发生和强度的时间序列，并很容易地传达给最终用户。VUI还可以协助瓦尔决策。我们提出并讨论了两种方法的概念动荡。
Accurately observing and interpreting volcanic unrest phenomena contributes towards better forecasting of volcanic eruptions, thus potentially saving lives. Volcanic unrest is recorded by volcano observatories and may include seismic, geodetic, degassing and/or geothermal phenomena. The multivariate datasets are often complex and can contain a large amount of data in a variety of formats. Low levels of unrest are frequently recorded, causing the distinction between background activity and unrest to be blurred, despite the widespread usage of these terms in unrest literature (including probabilistic eruption-forecasting models) and in Volcanic Alert Level (VAL) systems. Frequencies and intensities of unrest episodes are not easily comparable over time or between volcanoes. Complex unrest information is difficult to communicate simply to civil defence personnel and other non-scientists. The Volcanic Unrest Index (VUI) is presented here to address these issues. The purpose of the VUI is to provide a semi-quantitative rating of unrest intensity relative to each volcano’s past level of unrest and to that of analogous volcanoes. The VUI is calculated using a worksheet of observed phenomena. Ranges for each phenomenon within the worksheet can be customised for individual volcanoes, as demonstrated in the companion paper for Taupo Volcanic Centre, New Zealand (Potter et al. 2015). The VUI can be determined retrospectively for historical episodes of unrest based on qualitative observations, as well as for recent episodes with state-of-the-art monitoring. This enables a long time series of unrest occurrence and intensity to be constructed and easily communicated to end users. The VUI can also assist with VAL decision-making. We present and discuss two approaches to the concept of unrest.
影响因子：
5.2
作者：
Bell, Andrew F.;Naylor, Mark;Main, Ian G.
通讯作者：
Main, Ian G.