Vertical distribution of dust particles in the Earth's atmosphere during the 1998 Leonids

Details Vertical distribution of dust particles in the Earth's atmosphere during the 1998 Leonids Vertical distribution of dust particles in the Earth's atmosphere during the 1998 Leonids

Nov 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999m%26ps...34..969m&link_type=abstract

Meteoritics & Planetary Science, vol. 34, no. 6, pp. 969-973 (1999).

Physics

11

Scientific paper

Photometric observations of the twilight sky were carried out during Leonids 1998. The obtained vertical distributions of aerosol between 20 km and 140 km demonstrate the processes of the intrusion of fine meteor dust and its subsequent intra-atmospheric dynamics. The characteristic radii of two fractions of the meteor dust particles were estimated by their sedimentation velocities. They varied within rp=0.006+/-0.06 microns and rp=19+/-81 micron limits depending on an assumed particle density within (p =0.4+/-4.0 g cm-3. The assumption of (p=2.0 g cm-3 gave radii of the two fractions to be 0.01 microns and 30 microns respectively.

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