SGER: Kilauea Volcano Dynamics from Microgravity Pilot Project
SGER: Kilauea Volcano Dynamics from Microgravity Pilot Project
批准号:
0729139
负责人:
Anahita Tikku
金额:
$0.0万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2007
资助国家:
美国
项目状态:
已结题
起止时间:
2007-04-01 至 2008-09-30
中文摘要
重力和地震学经常被用作火山监测的预测工具,但通常不是综合的。这一SGER项目将调查有可能对监测有用的重力和地震信号,但迄今受到的关注相对较少:连续微重力和地震发射。研究人员的假设是,因为两者都是变形相关的(尽管在不同的时间尺度上),两者之间可能存在关联,而且联合分析这两个信号将比单独分析其中一个信号更有效的预测工具。在不同的构造环境中,地震辐射和全球定位系统(GPS)之间的类似相关性也提供了动力。他们将研究基拉韦厄火山的山顶火山口。特别是,有大量证据表明活动的流体流动被很好地记录为瞬时变形事件、极长周期地震活动和地震震动。他们将收集连续的相对重力和GPS数据,并利用地震信息进行分析。如果成功,这项工作可能会激发人们对扩展微重力阵列和更全面的地震分析的兴趣。该项目将支持一名新的女研究员、本科生的研究经验,并为火山灾害带来新的见解。
英文摘要
Gravity and seismology are often used as predictive tools in volcano monitoring, but usually are not integrated. This SGER project will investigate gravity and seismic signals that are potentially useful for monitoring but thus far have received relatively little attention: continuous microgravity and seismic emissions. The researchers' hypothesis is that, because both are deformation related (albeit at different time scales) there could be a correlation between the two, and that combined analysis of the two signals will be a more effective predictive tool than either one is alone. Analogous correlations between seismic emissions and global positioning system [GPS] in different tectonic environments provide motivation as well. They will study the summit crater of Kilauea volcano. In particular, there is abundant evidence for active fluid flow well documented as transient deformation events, very long period seismicity, and seismic tremor. They will collect continuous relative gravity and GPS data and analyze it with seismic information. If successful, the work could spark interest in extended microgravity arrays and more comprehensive seismic analysis. The project will support a new, female researcher, undergraduate research experience, and bring new insights into volcanic hazards.
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