Nos tutelles

CNRS

Nos partenaires


Accueil > Publications > Thèses > Archives Thèses > Thèses 2015 - 2016

BOMBRUN Maxime


Characterisation of Volcanic Emissions through Thermal Vision
Jeudi 1er octobre 2015 - 14 h 00 - Salle A102 - Bâtiment ISIMA

In April 2010, the eruption of Eyjafjallajökull (Iceland) threw volcanic ash across northwest Europe for six days which led to air travel disruption. This recent crisis spotlighted the necessity to parameterize plume dynamics through emission, dispersion and fall out as to better model, track and forecast cloud motions. This eruption was classified as a Strombolian-to-Sub-Plinian eruption type. Strombolian eruptions are associated with a large range of volcanic event types (Lava flows, paroxysms) and eruption styles (Hawaiian, Sub-plinian) and offer a partial precursory-indicator of more dangerous/powerful eruptions. In addition, strombolian eruptions are predictable and small enough to allow observation from within few hundred meters with relative safety, for both operators and material. Since 2001, thermal camera video has been increasingly used to track, parameterize and understand dynamic volcanic events. However, analyses and modelling as well as post-processing of thermal data are still not fully automated. In this thesis, I concentrate on the different components of strombolian eruptions at the full range of remote sensing spatial scales. These range from millimeters for individual particles to kilometers for the entire features via satellite images). Overall, I aim to characterise volcanic emissions through thermal vision.

Jury :
- Vincent Barra & Andrew Harris, Professeurs, Université Blaise Pascal, Directeur de Recherche
- Clive Oppenheimer, Professor, University of Cambridge, Rapporteur
- Vincent Charvillat, Professeur, Université de Toulouse, Rapporteur
- Jacopo Taddeucci, Researcher, INGV Roma, Examinateur
- Thierry Chateau, Professeur, Université Blaise Pascal, Examinateur