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Characterisation of volcanic emissions through thermal vision

Abstract : 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 parameterise plume dynamics through emission, dispersion and fall out as to better model, track and forecast cloud motions. This eruption was labeled as a Strombolian-to-Sub-Plinian eruption type. Strombolian eruptions are coupled 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 eruptions. In addition, strombolian eruptions are small enough to allow observations from within few hundred meters with relative safety, for both operators and material. Since 2001, thermal cameras have been increasingly used to track, parameterise and understand dynamic volcanic events. However, analyses, modelling and post-processing of thermal data are still not fully automated. In this thesis, I focus on the different components of strombolian eruptions at the full range of remote sensing spatial scales. These range from millimeters for particles to kilometers for the entire features via satellite images. Overall, I aim to characterise volcanic emissions through thermal vision.
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Submitted on : Friday, February 19, 2016 - 4:52:25 PM
Last modification on : Wednesday, November 20, 2019 - 2:46:23 AM
Long-term archiving on: : Friday, May 20, 2016 - 11:33:44 AM


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  • HAL Id : tel-01276660, version 1


Maxime Bombrun. Characterisation of volcanic emissions through thermal vision. Earth Sciences. Université Blaise Pascal - Clermont-Ferrand II, 2015. English. ⟨NNT : 2015CLF22600⟩. ⟨tel-01276660⟩



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