Determining {HF} communications channel parameters using {SuperDARN}

Details Determining {HF} communications channel parameters using {SuperDARN} Determining {HF} communications channel parameters using {SuperDARN}

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsa12b0685h&link_type=abstract

American Geophysical Union, Fall Meeting 2001, abstract #SA12B-0685

Physics

6934 Ionospheric Propagation (2487), 6994 Instruments And Techniques

Scientific paper

Space weather effects can strongly influence high-frequency (HF) communications by changing the ionospheric environment through which the radiowaves propagate. As many systems utilize HF communications, the ability to make real time assessments of propagation conditions is an important part of space weather monitoring systems. In this paper we present new techniques for measuring HF communications channel parameters using data from SuperDARN radars. These techniques use ground-scatter returns to define the variation in skip distance with frequency. From these data, the maximum usable frequency (MUF) as a function of range is determined and ionospheric critical frequecies are estimated. These calculations are made in near-real time and the results are made available on the world wide web. F region critical frequencies calculated using this method show good agreement with ionosonde data.

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