Within the framework of the European MVRRS project (Mitigation of Volcanic Risk by Remote Sensing
 Techniques). in June 1997 an airborne campaign was organised on Mt. Etna to study different characteristics of
 the volcanic plume emitted by the summit craters in quiescent conditions. Digital images were collected with
 the Airborne Multispectral Imaging Spectrometer (MIVIS). https://allfixelectricales.shop/product-category/urn-thermostat/