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Showing 1 to 3 of 3 for “"Sferics"”.
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Sferic propagation in the cutoff region of the earth-ionosphere waveguide
… waveguide is illuminated by lightning sferics and is used to monitor the change in ionosphere height through the day-night boundary. The observed ionospheric heights are found to be dependent on the three kinds of source-receiver paths: daytime, nighttime and mixed. Accurate locations …
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Midlatitude D Region Variations Measured from Broadband Radio Atmospherics
… guided waves, usually called atmospherics (or sferics for short), are recorded by our sensors located near Duke University. The purpose of this work is to develop and implement algorithms to derive the variations of <italic>D</italic> region electron density profile which is modeled by two …
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Sensing impacts to the Earth-ionosphere waveguide from terrestrial and space weather
… radio waves emitted by lightning strokes, called sferics. Previous work has analyzed signal propagation in this waveguide from both natural (lightning) and artificial (transmitter) sources, in order to study the response of the waveguide to space weather drivers. However, such efforts have focused …