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Publication . Article . 2021

Joint exploitation of space-borne and ground-based multitemporal InSAR measurements for volcano monitoring: The Stromboli volcano case study

Federico Di Traglia; Claudio De Luca; Mariarosaria Manzo; Teresa Nolesini; Nicola Casagli; Riccardo Lanari; Francesco Casu;
Open Access
Published: 01 Jul 2021 Journal: Remote Sensing of Environment, volume 260, page 112,441 (issn: 00344257, Copyright policy )
Country: Italy

Abstract We present a joint exploitation of space-borne and ground-based Synthetic Aperture Radar Interferometry (InSAR) and Multi Temporal (MT) InSAR measurements for investigating the Stromboli volcano (Italy) deformation phenomena. In particular, we focus our analysis on three periods: a) the time interval following the 2014 flank eruption, b) the July–August 2019 eruption and c) the following post-eruptive phase. To do this, we take advantage from an unprecedented set of space-borne and ground-based SAR data collected from April 2015 up to November 2019 along two (one ascending and one descending) Sentinel-1 (S-1) tracks, as well as, in the same period, by two ground-based systems installed along the Sciara del Fuoco northern rim. Such data availability permitted us to first characterize the volcano long-term 3D deformation behavior of the pre-eruptive period (April 2015–June 2019), by jointly inverting the space-borne and ground-based InSAR measurements. Then, the GB-SAR measurements allowed us to investigate the sin-eruptive time span (3rd July 2019 – 30th August 2019) which revealed rapid deformation episodes (e.g. more than 30 mm/h just 2 min before the 3rd July 2019 explosion) associated with the eruptive activity, that cannot be detected with the weekly S-1 temporal sampling. Finally, the S-1 measurements permitted to better constrain the post 2019 eruption deformations (31st August 2019 – 5th November 2019), which are mainly located outside the GB-SAR sensed area. The presented results demonstrate the effectiveness of the joint exploitation of the InSAR measurements obtained through satellite and terrestrial SAR systems, highlighting their strong complementarity to map and interpret the deformation phenomena affecting volcanic areas.

Subjects by Vocabulary

Microsoft Academic Graph classification: Synthetic aperture radar interferometry Lateral eruption Remote sensing Interferometric synthetic aperture radar Satellite Geology Sampling (statistics) Deformation (meteorology) Volcano geography.geographical_feature_category geography Joint (geology) Geodesy


InSAR, GB-InSAR, Sentinel-1, Stromboli, Data-fusion, P-SBAS, Computers in Earth Sciences, Geology, Soil Science

Funded by
European Plate Observing System Sustainability Phase
  • Funder: European Commission (EC)
  • Project Code: 871121
  • Funding stream: H2020 | RIA
Validated by funder
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Article . 2021
Providers: CNR ExploRA