@prefix adms: . @prefix dcat: . @prefix dcatapit: . @prefix dct: . @prefix foaf: . @prefix gsp: . @prefix locn: . @prefix owl: . @prefix rdf: . @prefix rdfs: . @prefix schema: . @prefix skos: . @prefix spdx: . @prefix time: . @prefix vcard: . @prefix xml: . @prefix xsd: . a dcatapit:Dataset, dcat:Dataset ; dct:accrualPeriodicity ; dct:description "The Column heIght Estimation by visibLe calibrated camera during eruptiOns at Etna (CIELO) dataset provides time series of volcanic column height measurements at the South East Crater (SEC) of Etna, derived from visible calibrated webcam images. The dataset covers 42 ash emission episodes spanning from 2015 to 2021. All data are also collected in an SQLite database (CIELO.db). This is version 2 of the dataset. It adds, for each event, the original webcam frames used as input. It also provides the database as a plain-text SQL dump (CIELO.sql). Data and results are unchanged from version 1." ; dct:identifier "10.13127/etna/cielo.2" ; dct:issued "2026-04-21T00:00:00"^^xsd:dateTime ; dct:language ; dct:modified "2026-12-10T00:00:00"^^xsd:dateTime ; dct:publisher [ a dcatapit:Agent, foaf:Agent ; dct:identifier "N/A" ; foaf:name "Istituto Nazionale di Geofisica e Vulcanologia (INGV)"@it ] ; dct:rightsHolder [ a dcatapit:Agent, foaf:Agent ; dct:identifier "ingv" ; foaf:name "Istituto Nazionale di Geofisica e Vulcanologia"@it ] ; dct:spatial [ a dct:Location ; locn:geometry "POLYGON ((12.0592 38.5018, 12.0592 38.5018, 15.9594 38.4846, 15.8385 36.4355, 12.0482 36.4797, 12.0592 38.5018))"^^gsp:wktLiteral, "{\"type\":\"Polygon\",\"coordinates\":[[[12.05921173095703,38.5018329763291],[12.05921173095703,38.5018329763291],[15.959358215332028,38.48463538137244],[15.838508605957028,36.435508667166815],[12.048225402832028,36.4796900091808],[12.05921173095703,38.5018329763291]]]}"^^ ] ; dct:temporal [ a dct:PeriodOfTime ; schema:endDate "2021-09-21T00:00:00"^^xsd:dateTime ; schema:startDate "2015-02-01T00:00:00"^^xsd:dateTime ] ; dct:title "Column heIght during Etna expLosive eruptiOn (CIELO) [v2]" ; owl:versionInfo "2.0" ; adms:identifier [ dct:creator [ a dcatapit:Agent, foaf:Agent ; foaf:name "INGV"@en, "INGV"@it ] ; skos:notation "ingv_1249" ] ; dcat:contactPoint ; dcat:keyword "vulcani" ; dcat:landingPage ; dcat:theme . a skos:Concept ; skos:prefLabel "Wissenschaft und Technologie"@de, "Science and technology"@en, "Ciencia y tecnologĂ­a"@es, "Science et technologie"@fr, "Scienza e tecnologia"@it . a dcatapit:Organization, vcard:Kind, vcard:Organization, foaf:Organization ; vcard:fn "ingv" ; vcard:hasEmail ; vcard:hasTelephone "" ; vcard:hasURL "http://www.ingv.it/it/" ; foaf:name "Istituto Nazionale di Geofisica e Vulcanologia (INGV)" .