Sébastien VALADE

Sébastien VALADE

Function: Postdoc

Main Research Unit: LMV

Presentation

During his postdoctoral fellowship with ClerVolc in 2012-2014, Sébastien used infrared cameras to study the dynamics of small scale ash plumes. A freeware (plumeTracker) was designed to track and analyze the plumes through time, and to extract descriptive parameters such as ascent velocities, volume, spreading rate, air entrainment coefficient, heat budget, ash mass loading, etc… With Matteo Cerminara from INGV Pisa, he reconstructed synthetic two-dimensional thermal images of volcanic plumes from analytical one-dimensional models. These were then compared with, and fitted to, thermal images of real plumes in order to recover the best input parameters, such as the source ash mass, particle size distribution and air entrainment coefficient.

ClerVolc Publications

Sébastien VALADE