Particle sedimentation in numerical modelling: a case study from the puyehue-cordón caulle 2011 eruption with the plume-mom/hysplit models

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SUMMARY

    Numerical modelling of tephra transport, dispersion, and sedimentation has become a key research area in volcanology e_g_[1-6]. On the one hand, numerical models are important to better understand and describe the physics of particle sedimentation, e_g_[7,8] or particle aggregation, e_g_[5,9], but also of larger scale phenomena such as ash cloud development or effects of variable source parameters on transport. For instance, particle aggregation has been implemented only sporadically in numerical models, e_g_[33-35], while other broader scale, en masse depositional mechanisms such as ash fingering or sediment . . .

     

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