Meteor radar rates, geomagnetic activity and solar wind sector structure

Details Meteor radar rates, geomagnetic activity and solar wind sector structure Meteor radar rates, geomagnetic activity and solar wind sector structure

Jun 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978natur.273..732l&link_type=abstract

Nature, vol. 273, June 29, 1978, p. 732-734. Research supported by the Statens Naturvetenskapliga Forskningsrad, Swedish Board f

Physics

16

Geomagnetism, Interplanetary Magnetic Fields, Meteoroid Showers, Radar Measurement, Solar Terrestrial Interactions, Solar Wind, Corpuscular Radiation, Magnetic Effects, Perseid Meteoroids, Radar Echoes, Solar Cycles, Solar Radiation

Scientific paper

A long series of radar observations of meteors made at the Onsala Space Observatory in Sweden was analyzed, and the results indicate a short-term dependence of meteor radar rates on geomagnetic activity and solar corpuscular radiation. The technique of superimposed epochs was used. An increase in geomagnetic activity begins after sector boundary passage, with a maximum occurring about 2.5 days later; the broad minimum in meteor radar echo rates begins after passage of the sector boundary and is most pronounced near epoch day +3. Data on the Perseids are discussed, and the heating of upper atmospheric layers when the earth's magnetic field varies is considered.

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