Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL094880 |
Observing posteruptive deflation of hydrothermal system using InSAR time series analysis: An application of ALOS-2/PALSAR-2 data on the 2015 phreatic eruption of Hakone volcano, Japan | |
R. Doke; K. Mannen; K. Itadera | |
2021-09-21 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | From 29 June to 1 July, 2015, a phreatic eruption occurred in Owakudani, the largest fumarole area in Hakone volcano, Japan. In this study, an interferometric synthetic aperture radar (InSAR) time series analysis of the Advanced Land Observing Satellite-2 (ALOS-2)/Phased Array type L-band Synthetic Aperture Radar-2 (PALSAR-2) data was performed to measure deformation after the eruption. The results show that the central cones of the volcano have subsided since the eruption and its deflation source is located beneath the previously estimated bell-shaped conductor, which is considered as a sealing layer confining a pressurized hydrothermal reservoir. Therefore, the InSAR results demonstrate the deflation of the hydrothermal system beneath the volcano. One possible cause of this deflation is compaction due to a decrease in pore pressure caused by rupture and fluid migration during and after the eruption. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/338832 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | R. Doke,K. Mannen,K. Itadera. Observing posteruptive deflation of hydrothermal system using InSAR time series analysis: An application of ALOS-2/PALSAR-2 data on the 2015 phreatic eruption of Hakone volcano, Japan[J]. Geophysical Research Letters,2021. |
APA | R. Doke,K. Mannen,&K. Itadera.(2021).Observing posteruptive deflation of hydrothermal system using InSAR time series analysis: An application of ALOS-2/PALSAR-2 data on the 2015 phreatic eruption of Hakone volcano, Japan.Geophysical Research Letters. |
MLA | R. Doke,et al."Observing posteruptive deflation of hydrothermal system using InSAR time series analysis: An application of ALOS-2/PALSAR-2 data on the 2015 phreatic eruption of Hakone volcano, Japan".Geophysical Research Letters (2021). |
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