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Detailed Reference Information |
Patra, A.K. and Rao, N.V. (2006). Radar observations of daytime 150-km echoes from outside the equatorial electrojet belt over Gadanki. Geophysical Research Letters 33: doi: 10.1029/2005GL024564. issn: 0094-8276. |
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We present systematic observations of daytime 150-km echoes from Gadanki (13.5¿ N, 79.2¿ E, 6.3¿ dip latitude). The echoing region is confined to 142--162 km altitude and show forenoon descent and afternoon ascent displaying a 'necklace shape' quite similar to that of the equatorial 150-km echoes. Signal-to-noise ratio, velocity and spectral width are as high as 13 dB above noise, -5 to 35 m s-1 and 2 to15 m s-1, respectively. The observed 'necklace shape' is first of its kind from Gadanki and the present observations have almost all characteristics of equatorial daytime 150-km echoes. The Gadanki radar observations hence provide first experimental evidence on the occurrence of daytime 150-km echoes outside the equatorial electrojet belt. |
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Abstract |
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Keywords
Ionosphere, Electric fields, Ionosphere, Equatorial ionosphere, Ionosphere, Ionospheric dynamics, Ionosphere, Ionospheric irregularities, Ionosphere, Plasma waves and instabilities |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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