High spatial attenuation of the Siple transmitter signal and natural VLF chorus observed at ground-based chain stations near Roberval, Quebec

Details High spatial attenuation of the Siple transmitter signal and natural VLF chorus observed at ground-based chain stations near Roberval, Quebec High spatial attenuation of the Siple transmitter signal and natural VLF chorus observed at ground-based chain stations near Roberval, Quebec

Feb 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87..742t&link_type=abstract

Journal of Geophysical Research, vol. 87, Feb. 1, 1982, p. 742-750. Research supported by the Japan Society for the Promotion o

Physics

25

Dawn Chorus, Ionospheric Propagation, Signal Fading, Wave Attenuation, Amplitudes, Ground Stations, Quebec, Time Response, Very Low Frequencies

Scientific paper

The field intensity of the Siple transmitter signal was measured at four stations along the geomagnetic meridian from July 10 to August 10, 1979, with a separation of 70-90 km and L values from 4.15 to 4.7. The field intensity of the signal was found to fall off rapidly with distance, at a typical rate of attenuation with distance as high as -7 db per 100 km, which is about 1 order of magnitude higher than values obtained from the earth ionosphere cavity propagation theory. The frequency band of the chorus shifted to a higher frequency at 1300 UT, and at 1345 UT, chorus activity became very low. Chorus activity appeared to move toward higher latitudes as its intensity dropped in late local morning hours, which agrees with the general pattern of local time dependence of chorus activity obtained by Pope (1963).

Affiliated with

Also associated with

No associations

Rating

High spatial attenuation of the Siple transmitter signal and natural VLF chorus observed at ground-based chain stations near Roberval, Quebec does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with High spatial attenuation of the Siple transmitter signal and natural VLF chorus observed at ground-based chain stations near Roberval, Quebec, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High spatial attenuation of the Siple transmitter signal and natural VLF chorus observed at ground-based chain stations near Roberval, Quebec will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1647890