Volcanic Ash, Eyjafjallajokull

Practical significance

Interpretation of remote sensing data. Analogues of other planets' atmospheric dust, and dust in comets, asteroids, and circumstellar shells

Origin

Ashes 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
Color
dark gray
Particle size Mie: reff (μm)
7.8
Particle size Mie: veff
2.9
Particle size Fraunhofer: reff (μm)
4.0
Particle size Fraunhofer: veff
5.9
Size distribution plot:
Size Distribution Eyjafjallajokull Volcanic Ash
SEM/TEM images:
Eyjafjallajokull Volcanic Ash SEM Image
All SEM/TEM images (zip file)
sem_eyjafjallajokull.zip
Scattering matrix (1) wavelength in nm
488.00 nm
Scattering matrix (1) table
matrix_eyjafjalla_488nm.txt
Scattering matrix (1) plot:
Scattering matrix elements Eyjafjallajokull Volcanic Ash - 488 nm
Scattering matrix (2) wavelength in nm
647.00 nm
Scattering matrix (2) table
matrix_eyjafjalla_647nm.txt
Scattering matrix (2) plot:
Scattering matrix elements Eyjafjallajokull Volcanic Ash - 647 nm
Refractive index

[1.43-1.59] + i[0-0.004] (647nm) (Schumann et al. Atm. 2011, Newman et al. 2012)

Angle range (deg)
[4,177]
Reference/s
Merikallio et al., 2015
Gómez-Martín et al., 2021