Data in this database are freely available under the request of citation of this paper and the paper in which the data were published.
Redoubt A
| origin | Redoubt volcano, Cook Inlet, Alaska, USA, 283 km southwest of Anchorage. The particles are from the 1989-1990 eruption and were collected 10 km from the volcano. The coarse fraction was removed by sieving |
| main constituents | 68-76 wt% glass, plagioclase feldspar, hornblende, cps, opx, magnetite, ilmenite |
| practical significance | interpretation of remote sensing data. Analogues of other planets' atmospheric dust, and dust in comets, asteroids, and circumstellar shells |
| particle size | measured size distributions Fraunhofer: reff=4.1 μm, veff=9.7 |
| particle shape | irregular |
| refractive index | estimated to be in the range [1.48-1.56] + i0.0018 |
| color | light gray |
| scattering matrix | 632.8 nm |
| article | Muñoz O,Volten H, Hovenier JW, Veihelmann B, van der Zande WJ, Waters LBFM, Rose WI. Scattering matrices of volcanic ash particles of Mount St. Helens, Redoubt, and Mount Spurr Volcanoes. Journal of Geophysical Research, vol. 109, D16201, 2004 |
