Radar observations of two-dimensional turbulence in the equatorial electrojet, 2

Journal Article · Thu Jan 01 04:00:00 EST 1976 · J. Geophys. Res., v. 81, no. 1, pp. 130-134

DOI:https://doi.org/10.1029/JA081i001p00130· OSTI ID:4007047

Fejer, B G; Farley, D T; Balsley, B B; Woodman, R F

Observations with an altitude resolution of about 1 km were made with the large, vertically directed 50-MHz radar system at the Jicamarca Radar Observatory during the day, when the electrojet was strong. Type 1 ('two stream') echoes were seen in a limited range of altitudes, with Doppler shifts corresponding to upward and downward motion at the acoustic velocity. Most of the radar returns were due to type 2 echoes, however. The direction of motion of the type 1 waves sometimes reversed in as little as 1 s, supporting a turbulent model of the electrojet region. During the day the upgoing type 1 waves were observed to be somewhat more easily excited than the downgoing waves, an effect similar to an east-west asymmetry noted in earlier studies. The correspondence between the Jicamarca radar observations and rocket measurements in India is discussed. (AIP)

• Research Organization: School of Electrical Engineering, Cornell University, Ithaca, New York 14850
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-027123
• OSTI ID: 4007047
• Journal Information: J. Geophys. Res., v. 81, no. 1, pp. 130-134, Journal Name: J. Geophys. Res., v. 81, no. 1, pp. 130-134; ISSN JGREA
• Country of Publication: United States
• Language: English

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*ELECTROJETS-- TURBULENCE
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