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首页> 外文期刊>Journal of Volcanology and Geothermal Research2012V243-244NOCT,15 >SBAS interferometric analysis for volcanic eruption of Hawaii island
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SBAS interferometric analysis for volcanic eruption of Hawaii island

机译：夏威夷岛火山喷发的SBAS干涉分析

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The Kilauea volcano on the Hawaii island started erupting on 3rd May 2018 after an earthquake of magnitude 5.0. The initial volcano eruption and the subsequent earthquakes resulted in the opening of new volcanic fissures, continuous lava flow at the lower east rift zone and the collapse of the summit caldera floor. All these activities continued until the 1st week of August 2018. The Small Baseline Subset (SBAS) technique is an advanced form of Differential Interferometry (DInSAR) which is capable of monitoring surface deformations with millimetre level accuracy. SBAS technique was utilised here for estimating the surface deformation on Hawaii island due to the volcanic episode. InSAR coherence technique was also utilised in this study for localised analysis at the summit and at the lower east rift zone to detect the time series deformation information and lava flow patterns. 14 interferometric datasets acquired by the ESA's Sentinel-1 C-band satellite from April 2018 to September 2018 were used in this study. The data acquired by the seismometers installed at Kilauea by Hawaii Volcano Observatory, the SWIR band of Sentinel-2 and the thermal band of Landsat-8 were used to correlate and verify the results obtained through the SBAS and InSAR coherence analysis. The combined interpretation of results obtained from all the sources gave insights about the underground magma conduit system, surface deformations, lava flow channels and the correlation between the magmatic and seismic activity happened there which are discussed in detail in this paper. (C) 2019 Elsevier B.V. All rights reserved.
机译：夏威夷岛的基拉韦厄火山在5.0级地震后于2018年5月3日开始爆发。最初的火山喷发和随后的地震导致新的火山裂缝打开，东下裂谷带持续的熔岩流以及山顶火山口底板塌陷。所有这些活动一直持续到2018年8月的第一周。小基线子集（SBAS）技术是差分干涉测量（DInSAR）的一种先进形式，能够以毫米级的精度监视表面变形。在这里，SBAS技术用于估算由于火山爆发而导致的夏威夷岛表面变形。在这项研究中，还使用InSAR相干技术对山顶和东下裂谷带进行了局部分析，以检测时间序列变形信息和熔岩流模式。这项研究使用了ESA的Sentinel-1 C波段卫星从2018年4月至2018年9月采集的14个干涉数据集。夏威夷火山天文台在基拉韦厄安装的地震仪获得的数据，Sentinel-2的SWIR波段和Landsat-8的热波段被用来关联和验证通过SBAS和InSAR相干分析获得的结果。从所有来源获得的结果的综合解释给出了有关地下岩浆管道系统，地表变形，熔岩流动通道以及在那里发生的岩浆活动与地震活动之间的相关性的见解，本文将对此进行详细讨论。 （C）2019 Elsevier B.V.保留所有权利。

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