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GEODETIC ANALYSIS AND MODELLING OF THE SANTORINI VOLCANO, GREECE, FOR THE PERIOD 2012-2015

机译:希腊Santorini火山的大地测量分析与建模,2012-2015期间

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Santorini Volcanic Complex (SVC) is the most active part of the South Aegean (Hellenic) Volcanic Arc, which marks the subduction of the African underneath the Eurasian plate, and is considered a prime site for conducting geophysical research. The SVC showed signs of unrest in January 2011 and has been inflating almost radially around a source northern of the Kameni islands. We present deformation maps for the SVC as obtained from the multi-temporal analysis of Synthetic Aperture Radar (SAR) imagery for the post-inflation period, using datasets from COSMO-SkyMed (CSK) and TerraSAR-X (TSX) satellites. Displacement rates indicate mainly subsidence at Nea Kameni Island and horizontal motion at the northern part of the caldera. These movements may be due to smooth deflation of the volcano. The signal for the rest of the SVC indicates a phase of relative stability. Finally, we model our results assuming a Mogi model for magma chambers. The data inversion was based on InSAR data and also accounting GPS measurements.
机译:圣托里尼火山复合体(SVC)是南爱琴海(Hellenic)火山弧的最活跃部分,标志着欧亚板块下面的非洲介绍,并被认为是用于进行地球物理研究的主要网站。 SVC在2011年1月显示出骚乱的迹象,几乎径向径向围绕着康梅尼群岛的北部。我们将SVC的变形图提出了从通胀时段的合成孔径雷达(SAR)图像的多时间分析中获得的,使用来自COSMO-SKYMED(CSK)和Terrasar-X(TSX)卫星的数据集。流离失所率指出了Nea Kameni岛的沉降和火山口北部的水平运动。这些运动可能是由于火山的光滑通气。 SVC其余部分的信号表示相对稳定性的相位。最后,我们为岩浆室的Mogi模型模拟了我们的结果。数据反转基于INSAR数据,也基于GPS测量。

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