10.13127/etna/cielo.2 Istituto Nazionale di Geofisica e Vulcanologia (INGV) ingv http://www.ingv.it/it/ 2026-04-21T00:00:00 INGV INGV ingv_1249 vulcani 2021-09-21T00:00:00 2015-02-01T00:00:00 2026-12-10T00:00:00 Istituto Nazionale di Geofisica e Vulcanologia (INGV) N/A 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)) {"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]]]} 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. Column heIght during Etna expLosive eruptiOn (CIELO) [v2] 2.0 Science et technologie Ciencia y tecnología Science and technology Wissenschaft und Technologie Scienza e tecnologia Istituto Nazionale di Geofisica e Vulcanologia ingv