Propagation of HF radiowaves on high-latitude radio paths during the magnetically disturbed period of October 24-28, 2003

Details Propagation of HF radiowaves on high-latitude radio paths during the magnetically disturbed period of October 24-28, 2003 Propagation of HF radiowaves on high-latitude radio paths during the magnetically disturbed period of October 24-28, 2003

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ge%26ae..49..786b&link_type=abstract

Geomagnetism and Aeronomy, Volume 49, Issue 6, pp.786-796

Computer Science

Sound

1

Scientific paper

The behavior of the HF signal parameters during magnetic storms and substorms has bee experimentally studied simultaneously on the Kiruna-Kirkenes auroral path, Kiruna-Longyearbyen polar path, and Murmansk-St. Petersburg subauroral path. The first two paths are equipped with the instruments making it possible to measure the values of the signal-to-noise ratio, Doppler frequency shift, and elevation angle. The method of oblique sounding of the ionosphere (OSI) was used on the Murmansk-St. Petersburg path. Two substantial substorms, a moderate storm, and an intense storm occurred during the studied period. Some new regularities have been revealed. On the Kiruna-Kirkenes and Kiruna-Longyearbyen paths, the signalto-noise ratio increased (due to the transition from the F 2 signal reflections to the E s reflections), the elevation angle increased (due to an increase in the ionospheric F 2 layer height and a decrease in the critical frequency), and the Doppler shift increased (due to the variations in ionization and the appearance of ionospheric irregularities during a substorm) when the signal was reflected from the F 2 layer close to the moment of the substorm or storm beginning T 0. It is possible to control the so-called “main effect” in the ionosphere on the Murmansk-St. Petersburg path.

Affiliated with

Also associated with

No associations

Rating

Propagation of HF radiowaves on high-latitude radio paths during the magnetically disturbed period of October 24-28, 2003 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 Propagation of HF radiowaves on high-latitude radio paths during the magnetically disturbed period of October 24-28, 2003, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Propagation of HF radiowaves on high-latitude radio paths during the magnetically disturbed period of October 24-28, 2003 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1887366