Data in this database are freely available under the request of citation of this paper and the paper in which the data were published.
Eyjafjallajokull Volcanic Ash
| origin | ash collected at 5 km from the source after the April 2010 eruption |
| main constituent | the main constituent is silica, SiO2, in concentration in between 50% and 70%. Other components are: Al2O3, CaO, TiO2, FeO, MgO and Na2O |
| particle size | measured size distributions Mie: reff=7.8 μm, v Fraunhofer: reff=4.0 μm, veff=5.9 |
| particle shape | irregular |
| refractive index | [1.43-1.59] + i[0-0.004] (647nm) (Schumann et al. Atm. 2011, Newman et al. 2012) |
| color | dark 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 |
