EGU2020-9443
https://doi.org/10.5194/egusphere-egu2020-9443
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

A microwave monitoring service for the study of the Stromboli volcano deformation

Claudio De Luca1, Federico Di Traglia2, Vincenzo De Novellis1, Carmen Esposito1, Teresa Nolesini2, Mariarosaria Manzo1, Pietro Tizzani1, Antonio Natale1, Paolo Berardino1, Stefano Perna3, Nicola Casagli2, Riccardo Lanari1, and Francesco Casu1
Claudio De Luca et al.
  • 1Istituto per il Rilevamento Elettromagnetico dell’Ambiente (IREA), CNR, 80124 Napoli, Italy (deluca.c@irea.cnr.it)
  • 2Università degli Studi Firenze (UNIFI), 50121 Firenze, Italy
  • 3Università degli Studi di Napoli Parthenope, 80133 Napoli, Italy

In this paper, we present the activities relevant to the microwave monitoring of the Stromboli volcano ground deformation, performed by IREA-CNR (Institute for the Electromagnetic Sensing of the Environment) and UNIFI (University of Florence) as Centres of Competence for the Italian Civil Protection Department.

The availability of Synthetic Aperture Radar (SAR) system provides, among several techniques, accurate information on the volcano morphology and deformation, thus allowing us to understand the on-going volcanic changes. In this work, we present the results of a back-analysis (from 2015) of the volcano behaviour in terms of ground deformation and an insight on the volcano crisis occurred from July 3 2019, by using Differential Interferometry SAR (DInSAR) measurements.

The generated DInSAR results are both satellite and ground based. In particular, we show the displacement time series obtained with Sentinel-1 data acquired from March 2015 to October 2019 over the whole island and from ascending and descending orbits, and the displacement estimated with a Ground-Based SAR placed for the Sciara del Fuoco and summit craters sensing.

Moreover, the combination of the deformation measurements retrieved with both monitoring systems, which are characterized by independent acquisition geometries, allowed us to partially reconstruct a 3D deformation field of Sciara del Fuoco area.

Finally, we show the preliminary result of a test about an operational monitoring service based on new methodologies for the processing of airborne SAR data, aimed at evaluating its relevance for Civil Protection purposes in volcanic risk context.

 

This work is supported by the 2019-2021 IREA-CNR and Italian Civil Protection Department agreement, and by the 2019-2021 UNIFI and Italian Civil Protection Department agreement.

How to cite: De Luca, C., Di Traglia, F., De Novellis, V., Esposito, C., Nolesini, T., Manzo, M., Tizzani, P., Natale, A., Berardino, P., Perna, S., Casagli, N., Lanari, R., and Casu, F.: A microwave monitoring service for the study of the Stromboli volcano deformation, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-9443, https://doi.org/10.5194/egusphere-egu2020-9443, 2020

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Presentation version 2 – uploaded on 26 Apr 2020
I have corrected few typing errors
  • CC1: Questions and answers from the live chat during EGU2020, Michael Heap, 11 May 2020

    Q: Which is your main message?

    A: The main massege of this activity is the complementary use of different Microwave technologies to support the volcano monitoring activities. Indeed with this work we are able to reconstruct the 3D deformation field using also the North-South component provided by the GB.InSAR

    Q: What is the approximate cost of airborne SAR data acquisition?

    A: It depends by the number of flight, anyway for this activity for 3 flight campains we spend about 15.000 euro

    Q: Have you tried SAR offset pixel tracking to measure the large-scale displacements in the middle?

    A: We do not use the pixel-offset technique for this activitiy also if possible. The GB-InSAR can acquire high resolution image with a very high temporal sampling, providing us very accurate deformation measures of the paroxysmal eruption

Presentation version 1 – uploaded on 25 Apr 2020 , no comments