Physics
Scientific paper
Feb 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992georl..19..253l&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 19, Feb. 7, 1992, p. 253-256.
Physics
5
Gravity Waves, Ionospheric Currents, Telecommunication, Traveling Ionospheric Disturbances, Auroral Zones, Coaxial Cables, Geomagnetism
Scientific paper
The observation of about 40 min quasi-periodic variations during local daytime conditions in the differences between the voltages measured on two parallel (separation distance about 100 km) unpowered telecommunications cables between California and Hawaii (length of each about 4000 km) is reported. The events are inferred to be produced by small changes in magnitude and/or position of the Sq ionosphere current system, the focus of which passes on average daily over the cables. The changes in the current system are probably produced by medium-scale TID's. This dual cable system appears to provide a very sensitive technique for measuring small amplitude, medium-scale midlatitude changes in ionospheric currents, especially those produced by TID's.
Hunsucker Robert D.
Kraus J. S.
Lanzerotti Louis J.
Maclennan Carol G.
Medford L. V.
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