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Observations of the altitude of the volcanic plume during the eruption of Eyjafjallaj?kull, April–May 2010

机译:2010年4月至5月Eyjafjallaj?kull喷发期间火山羽流高度的观测

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The eruption of Eyjafjallaj?kull volcano in 2010 lasted for 39 days, 14 April–23 May. The eruption had two explosive phases separated by a phase with lava formation and reduced explosive activity. The height of the plume was monitored every 5 min with a C-band weather radar located in Keflavík International Airport, 155 km distance from the volcano. Furthermore, several web cameras were mounted with a view of the volcano, and their images saved every five seconds. Time series of the plume-top altitude were constructed from the radar observations and images from a web camera located in the village Hvolsv?llur at 34 km distance from the volcano. This paper presents the independent radar and web camera time series and performs cross validation. The results show good agreement between the time series for the range when both series are available. However, while the radar altitudes are semi-discrete the data availability was much higher than for the web camera, indicating how essential weather radars are as eruption plume monitoring devices. The echo top radar series of the altitude of the volcanic plume are publicly available from the Pangaea Data Publisher (http://dx.doi.org/10.1594/PANGAEA.760690).
机译:4月14日至5月23日,2010年的艾雅菲亚德拉冰原火山喷发持续了39天。喷发有两个爆炸相,一个熔岩形成相和一个爆炸活性降低相分离。位于凯夫拉维克国际机场(距离火山155公里)的C波段天气雷达每5分钟监测一次羽流高度。此外,安装了几个网络摄像机,可欣赏火山的景色,并且每五秒钟保存一次其图像。羽顶高度的时间序列是根据雷达观测结果和来自位于距火山34公里的Hvolsv?llur村的网络摄像机的图像构建的。本文介绍了独立的雷达和网络摄像机时间序列,并进行了交叉验证。结果表明,当两个序列都可用时,该时间范围之间的一致性很好。但是,尽管雷达高度是半离散的,但数据可用性却远高于网络摄像头,这表明天气雷达作为喷发羽流监视设备的重要性。可从Pangea数据发布商(http://dx.doi.org/10.1594/PANGAEA.760690)公开获得有关火山羽流高度的回波顶部雷达系列。

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