Sonia Calvari

Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo, Faculty Member

Followers

148

Following

Co-authors

Public Views

Phone: +39 095 7165862
Address: Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo, Piazza Roma 2, 95125 Catania, Italy

less

James Elkins

School of the Art Institute of Chicago

Roman Leibov

University of Tartu

Nicolas Coltice

École Normale Supérieure

Maurizio Forte

Duke University

Paul E. Olsen

Columbia University

Gabriel Gutierrez-Alonso

University of Salamanca

Paulo Emanuel T F Fonseca

Universidade de Lisboa

sabina porfido

Consiglio Nazionale delle Ricerche (CNR)

Viacheslav Kuleshov

Stockholm University

Bogdan Gabrys

University of Technology Sydney

InterestsView All (8)

Uploads

Papers by Sonia Calvari

The San Bartolo lava flow field, Stromboli volcano, Italy: Simulation of the most recent historic flank eruption (2 kyr) affecting the inhabited area aimed at hazard assessment

The San Bartolo eruption is the last flank eruption occurred at Stromboli volcano about 2 ka ago ... more The San Bartolo eruption is the last flank eruption occurred at Stromboli volcano about 2 ka ago on the NE flank of the island. Despite its importance in being the most recent example of flank activity outside the barren Sciara del Fuoco slope, where the recent activity concentrated, some important volcanological data, such as the duration and lava volume have not yet been provided. Here, we present a new simulation of the San Bartolo eruption carried out using a combination of field analyses and numerical modelling. In particular, we used the CL-HOTSAT satellite monitoring system to estimate the effusion rate and erupted volume of the 2002-03 eruption, which formed a similar lava flow field extending from about 600 m in elevation to the coast. These were used as input of the physics-based model GPUFLOW to reproduce the emplacement dynamics of the San Bartolo lava flow. The aim is to reconstruct the sequence of events and infer a possible duration and impact of the eruption. Our res...

Volcanic Hazard Monitoring Using Multi-Source Satellite Imagery

2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021

Satellite remote sensing is playing an increasing role in volcano monitoring, not only at little-... more Satellite remote sensing is playing an increasing role in volcano monitoring, not only at little-known and remote volcanoes where in-situ data are often unavailable, but also at well-monitored volcanoes to complement ground-based measurements. The synoptic view captured by multi-source satellite imagery over volcanoes can benefit hazard monitoring efforts, both following the different phases and intensities of an eruption, as well as helping in nowcasting and eventually forecasting the areas potentially threatened by hazardous phenomena. Here we demonstrate how satellite data from different sources can be combined to refine the satellite-derived radiant heat flux and time-averaged discharge rates (TADRs) estimation, and to improve real-time monitoring and nowcasting of eruptive events. This is achieved by cross-referencing TADRs obtained from low spatial/high temporal resolution satellite data (e.g. MODIS, SEVIRI, VIIRS, SLSTR) with maps of volcanic deposits including the time-varying evolution of lava flow emplacement derived from medium spatial resolution multispectral satellite data (e.g. EO-ALI, Landsat, Sentinel-2, ASTER), and with detailed three-dimensional maps of volcanic deposits retrieved from the topographic monitoring by using stereo or tri-stereo optical data (e.g. Pleiades, PlanetScope, SkySat, ASTER). Finally, satellite-derived parameters are used as input and validation for the numerical modelling of lava flow scenarios. This strategy is here applied to recent eruptions occurred on Etna, Stromboli and Nabro volcanoes.

Preface Special Issue: MeMoVolc

Annals of Geophysics, 2019

Sonia Calvari

Uploads

Papers by Sonia Calvari

Log In