Long-term variability of visual sporadic meteor rates

Details Long-term variability of visual sporadic meteor rates Long-term variability of visual sporadic meteor rates

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jimo...35..134d&link_type=abstract

WGN, Journal of the International Meteor Organization, vol. 35, no. 6, p. 134-138

Physics

2

Scientific paper

Long-term variability of visual sporadic meteor rates is analyzed using Visual Meteor Data Base records collected in the years 1982-2007. It is found that sporadic meteor rates in the selected period of September vary within +-20% around average hourly rate of HR_spo=11.7. These variations have a period of 10.2+-1.2 years and exhibit a high degree of correlation (36 sunspot numbers. The occurrences of highest visual sporadic rates almost perfectly coincide with the sunspot maxima of 1990 and 2000. They support recent findings by Simek and Pecina (2002) on a long-term radar sporadic meteor variability with the course of the solar cycle.

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