Desert Dust, Gobi | Scattering

Practical significance

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

Origin

Collected directly from the top of cars in Beijing during a dust storm in 2006.

Main constituent

Composition considered to be similar to Sahara sand (quartz, clay minerals and calcium carbonate)

Color

Green powder

Particle size Mie: reff (μm)

7.6

Particle size Mie: veff

1.6

Particle size Fraunhofer: reff (μm)

4.6

Particle size Fraunhofer: veff

2.9

Size distribution plot:

SEM/TEM images:

All SEM/TEM images (zip file)

Scattering matrix (1) wavelength in nm

488.00 nm

Scattering matrix (1) table

Scattering matrix (1) plot:

Scattering matrix (2) wavelength in nm

647.00 nm

Scattering matrix (2) table

Scattering matrix (2) plot:

Refractive index

Estimated to be in the range [1.5 -1.7] + i[0.00001-0.001]

Angle range (deg)

[3,177]

Reference/s