Volcanic Activity of Sakurajima Monitored Using Global Navigation Satellite System
Volcanic Activity of Sakurajima Monitored Using Global Navigation Satellite System
复制标题
利用全球导航卫星系统监测樱岛火山活动
DOI：
10.20965/jdr.2018.p0518
复制
发表时间：
2018
影响因子：
0.8
通讯作者：
M. Iguchi
中科院分区：
文献类型：
--
作者：
M. Iguchi
自1995年以来，在樱岛火山部署了一个密集的全球导航卫星系统网络，并延伸到Aira破火山口周围地区。GNSS观测得到的地面形变对应于樱岛火山的短暂喷发活动，樱岛火山自1955年以来频繁地产生火山喷发。在1999年火山爆发增加之前，发现了火山的膨胀，并在昭和火山口恢复喷发。2009年底、2011年底和2015年初的岩浆侵入事件和喷发增加表明，从爱拉破火山口到南岳火山锥顶部区域的喷口，通过旧北岳火山锥下方的子水库，存在一个开放的管道系统。密集的GNSS网络显示，堤坝突然侵入引起的地面变形不同于以往的侵入。全球导航卫星系统数据有助于评价和预测火山活动，并可用于掌握火山灰的平流和扩散情况。
A dense Global Navigation Satellite System (GNSS) network has been deployed at Sakurajima volcano since 1995 and extends to the surrounding area of the Aira caldera. The ground deformation obtained by GNSS observation corresponds to transient eruptive activity of Sakurajima volcano, which has produced frequent vulcanian eruptions since 1955. Inflation of the volcano was detected prior to the increase in vulcanian eruptions in 1999, and resumption of the eruptions at the Showa crater. Magma intrusion events and an increase in eruptions in late 2009, late 2011, and early 2015 suggest the existence of an open-conduit system from the Aira caldera to the vents at the summit area of the Minamidake cone, through the sub reservoir beneath the older Kitadake cone. Ground deformation induced by sudden dike intrusion is different from that of previous intrusions, as revealed by the dense GNSS network. GNSS data are useful in evaluating and forecasting volcanic activity, and are available to grasp the advection and diffusion of volcanic ash.
樱岛火山周围密集 GNSS 网络捕获的火山羽流的平流扩散：以 2012 年 7 月 24 日火山喷发为例
DOI：
10.1186/s40623-015-0324-x
发表时间：
2015
期刊：
Earth, Planets and Space
影响因子：
--
作者：
Ohta;Y.;and M. Iguchi
通讯作者：
and M. Iguchi