ingv:https://data.ingv.it/metadata/iso19115/967.xml eng utf8 dataset Istituto Nazionale di Geofisica e Vulcanologia - INGV ufficiogestionedati@ingv.it http://istituto.ingv.it/it/ufficio-gestione-dati pointOfContact 2024-02-19 Linee Guida RNDT 2.0 UAS-based mapping of the July 3rd 2019 clast density distribution on the W flank of Stromboli with uncertainty quantification 2024 publication ingv:https://doi.org/10.13127/stromboli/2022-uas-survey Istituto Nazionale di Geofisica e Vulcanologia - INGV ufficiogestionedati@ingv.it http://www.ingv.it owner Istituto Nazionale di Geofisica e Vulcanologia - INGV ufficiogestionedati@ingv.it http://istituto.ingv.it/it/ufficio-gestione-dati resourceProvider Istituto Nazionale di Geofisica e Vulcanologia - INGV ufficiogestionedati@ingv.it http://istituto.ingv.it/it/ufficio-gestione-dati publisher Bevilacqua, Andrea Istituto Nazionale di Geofisica e Vulcanologia (INGV) andrea.bevilacqua@ingv.it https://orcid.org/0000-0002-0724-2593 ORCID author Nannipieri, Luca Istituto Nazionale di Geofisica e Vulcanologia (INGV) luca.nannipieri@ingv.it https://orcid.org/0000-0002-7529-1020 ORCID author Favalli, Massimiliano Istituto Nazionale di Geofisica e Vulcanologia (INGV) massimiliano.favalli@ingv.it https://orcid.org/0000-0002-7338-6069 ORCID author Fornaciai, Alessandro Istituto Nazionale di Geofisica e Vulcanologia (INGV) alessandro.fornaciai@ingv.it https://orcid.org/0000-0003-4829-4928 ORCID author ingv:https://doi.org/10.13127/stromboli/2022-uas-survey Stromboli is a volcanic island in a persistent state of activity, located off the northern coast of Sicily. The paroxysms have been the most powerful explosive phenomena at Stromboli in the last 150 years. These explosions can produce ballistic projectiles that can heavily affect trails and observation sites as well as hit inhabited areas at lower elevations, down to the coast. On July 3rd 2019 a paroxysm significantly affected a great portion of the island with ballistic projectiles. In particular, many decimeter and meter-sized spatter bombs hit the W flank of Stromboli, and ignited multiple fires. In May 2022, we conducted an Unmanned Aerial System photogrammetric campaign over a sector of the W flank of Stromboli that was heavily affected by the paroxysm. The greatest clasts were still preserved after three years, not disturbed by significant mass wasting phenomena or human interference, and they were not yet hidden by the post-fire regrowth of the brush vegetation. In this study we constrained the main sources of uncertainty affecting the bombs distribution on the ground, by characterizing a percentage of uncertain clasts, by testing various density estimators, and by modeling an areal buffer around the mapped clasts. We produced a 0.18 km2 wide 1.6 cm resolution orthomosaic, a 10 cm resolution Digital Surface Model, vectorial data of the detected clasts. Spatial distribution of the ground cover and associated uncertainty were analyzed as a function of the distance and of the angular direction from the source. completed Nannipieri, Luca Istituto Nazionale di Geofisica e Vulcanologia - INGV luca.nannipieri@ingv.it https://orcid.org/0000-0002-7529-1020 ORCID pointOfContact notPlanned https://data.ingv.it/dataset/cover/967.jpg thumbnail image/jpeg EU open data Digital Surface Model and orthophoto theme otherRestrictions Creative Commons Attribution 4.0 International (CC BY 4.0) otherRestrictions no limitations to public access http://publications.europa.eu/resource/authority/licence/CC_BY unclassified 1000 eng utf8 Stromboli Island W flank 15.19 15.20 38.79 38.80 Istituto Nazionale di Geofisica e Vulcanologia (INGV) ufficiogestionedati@ingv.it http://www.ingv.it distributor https://www.pi.ingv.it/banche-dati/stromboli-2022-uas-survey/ WWW:LINK-1.0-http--link other homepage accessPoint dataset m 1 Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 Publication This data set is conformant with the INSPIRE Implementing Rules for the interoperability of spatial data sets and services true This is a temporary placeholder