Data in this database are freely available under the request of citation of this paper and the paper in which the data were published.
JSC Puyehue Volcanic Ash
origin | the Puyehue ash sample corresponds to the June 2011 Puyehue-Cordón Caulle complex eruption. The sample was collected at a distance of around 150 km in the Comallo region |
main constituent | rhyolitic obsidian |
particle size | measured size distributions Mie: reff=8.6 μm, v Fraunhofer: reff=5.0 μm, veff=4.4 |
particle shape | irregular |
refractive index | 1.48 + i0.00027 (647nm) (Pollack et al. 1973) |
color | light gray |
scattering matrix | 647 nm |
article | Merikallio S, Muñoz O, Sundstrom A-M, Virtanen TH, Horttanainen M, de Leeuw G, Nousiainen T. Optical modeling of volcanic ash particles using ellipsoids. JGR Atmospheres DOI: 10.1002/2014JD022792 |