Investigating the Large-Scale Transport of a Volcanic Plume and the Impact on a Secondary Site

Abstract

Volcanic plumes can be transported across vast distances and can have an impact on solar ultraviolet radiation (UVR) reaching the surface due to the scattering and absorption caused by aerosols. The dispersion of the volcanic plume from the Puyehue-Cordón Caulle volcanic complex (PCCVC) eruption was investigated to determine the effect on aerosol loading at Cape Point, South Africa. The eruption occurred on 4 June 2011 and resulted in a plume reaching a height of between 9 and 12 km and was dispersed across the Southern Hemisphere. Satellite sulphur dioxide (SO2) observations and a dispersion model showed low concentrations of SO2 at the secondary site. However, satellite observations of volcanic ash and ground-based aerosol measurements did show increases between 10 and 20 June 2011 at the secondary site. Furthermore, there was good agreement with the dispersion model results and observations from satellites with most of the plume located between latitudes 40°–60° South.

Investigating the Long-Range Transport of Aerosol Plumes Following the Amazon Fires (August 2019): A Multi-Instrumental Approach from Ground-Based and Satellite Observations

“…Several authors reported on large-scale transport across the Atlantic in the southern hemisphere at different atmospheric layers [8,11,12,42,43]. However, despite the seasonality of Amazon fires, none of these studies reported on such long-distance transport from the Amazon basin to Indian Ocean.…”

Multisensor Characterization of the Incandescent Jet Region of Lava Fountain-Fed Tephra Plumes

“…Explosive eruptions eject large volumes of volcanic particles (i.e., tephra) having different size from micrometers to meters. During the most intense explosive events, volcanic ash can reach the stratosphere, sometimes encircling the globe (e.g., Cordon Caulle 2011 eruption, Chile) [1]. In the eruptive column, tephra is mixed with gas (e.g., water and CO 2 ) that controls the dynamics of explosive eruptions [2].…”

Forecasting upper atmospheric scalars advection using deep learning: an $$O_3$$ experiment

“…Please note that while precipitation nowcast is one of the major target subjects from the literature, other applications may also profit from the same neural networks, as the prediction of air pollution dissemination (Fan et al 2017), the transportation of volcanic plumes (du Preez et al 2020) or the estimation of sea surface temperature (Jonnakuti et al 2020). These models can also complement existing NWP models (Wiegerinck et al 2019) or, in our case, be applied to forecast the stratospheric ozone circulation.…”