期刊
GEOPHYSICAL RESEARCH LETTERS
卷 42, 期 21, 页码 9239-9246出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2015GL066003
关键词
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资金
- NERC [NE/K011006/1]
- Centre for the Observation and Modelling of Earthquakes, Volcanoes and Tectonics (COMET)
- ESA's SEOM programme [4000110680/14/I-BG]
- German Space Agency [XTI_GEOL0432]
- Natural Environment Research Council [come30001, NE/K010867/1] Funding Source: researchfish
- NERC [NE/K010867/1, come30001] Funding Source: UKRI
After 20 years of quiescence, Fogo volcano erupted in November 2014. The eruption produced fast-moving lava flows that traveled for several kilometers and destroyed two villages. This event represents the first episode of significant surface deformation imaged by the new European Space Agency's Sentinel-1 satellite in its standard acquisition mode, Terrain Observation by Progressive Scans (TOPS), which differs from that of previous synthetic aperture radar (SAR) missions. We perform a Bayesian inversion of Sentinel-1 TOPS SAR interferograms spanning the eruption and accurately account for variations in the TOPS line-of-sight vector when modeling displacements. Our results show that magma ascended beneath the Pico do Fogo cone and then moved laterally toward its southwestern flank, where the eruptive fissure opened. This study provides important insights into the inner workings of Fogo volcano and shows the potential of Sentinel-1 TOPS interferometry for geophysical (e.g., volcano monitoring) applications.
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