Volcanic Ash, Puyehue

Categories

TERRESTRIAL AEROSOLS

Summary: AEROSOLS

Terrestrial Aerosols Subcategories

Volcanic

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 Mie: reff (μm)

8.6

Particle size Mie: veff

2.2

Particle size Fraunhofer: reff (μm)

5.0

Particle size Fraunhofer: veff

4.4

Size distribution plot

Size distribution table

size_puyehue.txt

Particle shape

irregular

SEM : View images

View images

All SEM images (zip file)

sem_puyehue.zip

Refractive index

1.48 + i0.00027 (647nm) (Pollack et al. 1973)

Color

light gray

Scattering matrix (1) wavelength in nm

647

Scattering matrix (1) plot

Scattering matrix (1) table

matrix_puyehue_647nm.txt

Synthetic scattering matrix (1) wavelength in nm

647

Synthetic scattering matrix (1) table M

extra_puyehue_647_M.txt

Synthetic scattering matrix (1) table F

extra_puyehue_647_F.txt

Angle range (deg)

[3,177]

Paper (pdf)

Merikallio et al., JGR, vol. 120, 2015

Full reference paper

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, Vol. 120, no. 9, 2015

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