Desert Dust, OSN - Sahara Sand

Categories
TERRESTRIAL AEROSOLS
Summary: AEROSOLS
Cosmic analogs subcategories
Asteroids
Circumstellar shells
Comets
Terrestrial Aerosols Subcategories
Desert dust
Origin

Collected from the roof of the OSN observatory after a dust intrusion in 2004.

Main constituent
Quartz, clay minerals and calcium carbonate
Practical significance

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

Particle size Mie: reff (μm)
4.0
Particle size Mie: veff
1.8
Particle size Fraunhofer: reff (μm)
2.5
Particle size Fraunhofer: veff
2.5
Size distribution plot:
Size Distribution OSN - Sahara Desert Dust
Imaging
SEM
SEM/TEM images:
Size Distribution OSN - Sahara Desert Dust
All SEM/TEM images (zip file)
sem_osn.zip
Color
Green powder
Scattering matrix (1) wavelength in nm
488.00 nm
Scattering matrix (1) table
matrix_osn_488nm.txt
Scattering matrix (1) plot:
Scattering matrix elements OSN - Sahara Desert Dust - 488 nm
Scattering matrix (2) wavelength in nm
647.00 nm
Scattering matrix (2) table
matrix_osn_647nm.txt
Scattering matrix (2) plot:
Scattering matrix elements OSN - Sahara Desert Dust - 647 nm
Synthetic scattering matrix (1) wavelength in nm
488.00nm
Synthetic scattering matrix (1) table M
extra_osn_488nm_M.txt
Synthetic scattering matrix (2) wavelength in nm
647.00nm
Synthetic scattering matrix (2) table M
extra_osn_647nm_M.txt
Refractive index

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

Angle range (deg)
[3,177]
Reference/s
Gómez-Martín et al., 2021