East-west asymmetries of the equatorial electrojet 8.3 m type-2 echoes observed over Trivandrum and a possible explanation

Journal of Geophysical Research: Space Physics

Volumn 110, Issue A11, 2005, Pages

  Patra, A K ^a   Tiwari, D ^b,c   Devasia, C V ^c   Pant, T K ^c   Sridharan, R ^c  

^a National MST Radar Facility   (India)

^b INDIAN INSTITUTE OF GEOMAGNETISM   (India)

^c INDIAN SPACE RESEARCH ORGANISATION   (India)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 33845751448     PISSN: None     EISSN: 21699402     Source Type: Journal    
DOI: 10.1029/2005JA011124     Document Type: Article

References (25)

1. Balsley, B. B. (1970), A longitudinal variation of electron drift velocity in the equatorial electrojet, J. Geophys. Res., 75, 4291.
2. Bowles, K. L., B. B. Balsley, and R. Cohen (1963), Field-aligned E region irregularities identified with acoustic plasma waves, J. Geophys. Res., 68, 2485.
3. Cohen, R., and K. L. Bowles (1967), Secondary irregularities in the equatorial electrojet, J. Geophys. Res., 72, 885.
4. Crochet, M., C. Poman, and C. Hanuise (1976), Radar profiles of the equatorial electrojet, Geophys. Res. Lett., 3, 673.
5. Farley, D. T., B. G. Fejer, and B. B. Balsley (1978), Radar observations of two-dimensional turbulence in the equatorial electrojet: 3. Night-time observations of type-1 waves, J. Geophys. Res., 83, 5625.
6. Parley, D. T., W. E. Swartz, D. L. Hysell, and C. Ronchi (1994), High resolution radar observations of daytime kilometer-scale wave structure in the equatorial electrojet, J. Geophys. Res., 99, 299.
7. Fejer, B. G., D. T. Farley, B. B. Balsley, and R. P. Woodman (1976), Radar observations of two-dimensional turbulence in the equatorial electrojet: 2, J. Geophys. Res., 81, 130.
8. Gruzinov, A. V., N. Kukharkin, and R. N. Sudan (1996), Two-dimensional convective turbulence, Phys. Rev. Lett., 76, 1260.
9. Hu, S., and A. Bhattacharjee (1999), Gradient drift instability and turbulence in the nighttime equatorial electrojet, J. Geophys. Res., 104, 28, 123.
10. Ierkic, H. M., B. G. Fejer, and D. T. Farley (1980), The dependence of zenith angle of the strength of 3-meter equatorial electrojet irregularities, Geophys. Res. Lett., 7, 497.
11. Janardhanan, K. V., et al. (2001), HF backscatter radar at the magnetic equator: System details and preliminary results, Ind. J. Radio Space. Phys., 30, 77.
12. Kudeki, E., and D. T. Farley (1989), Aspect sensitivity of equatorial electrojet irregularities and theoretical implications, J. Geophys. Res., 94, 426.
13. Kudeki, E., D. T. Farley, and B. J. Fejer (1982), Long wavelength irregularities in the equatorial electrojet, Geophys. Res. Lett., 9, 684.
14. Kudeki, E., D. T. Farley, and B. J. Fejer (1985), Theory of spectral asymmetries and nonlinear currents in the equatorial electrojet, J. Geophys. Res., 90, 429.
15. Kudeki, E., B. G. Fejer, D. T. Farley, and C. Hanuise (1987), The condor equatorial electrojet campaign: Radar results, J. Geophys. Res., 92, 13,561.
16. Pfaff, R. F., M. C. Kelley, B. G. Fejer, N. C. Maynard, and K. D. Baker (1982), In-situ measurements of wave electric fields in the equatorial electrojet, Geophys. Res. Lett., 9, 688.
17. Pfaff, R. P., M. C. Kelley, E. Kudeki, B. G. Fejer, and K. D. Baker (1987), Electric field and plasma density measurements in the strongly driven daytime equatorial electrojet: 1. The unstable layer and gradient drift waves, J. Geophys. Res., 92, 13,578.
18. Ravindran, S., and B. V. KrishnaMurthy (1997), Up-down asymmetry of type-I plasma waves in the equatorial electrojet region, Ann. Geophys., 15, 774.
19. Rognlien, T. D., and J. Weinstock (1975), Theoretical properties of two-dimensional electrojet turbulence, Radio Sci., 10, 239.
20. Ronchi, C., R. N. Sudan, and D. T. Parley (1991), Numerical simulations of large-scale plasma turbulence in the daytime equatorial electrojet, J. Geophys. Res., 96, 21,263.
21. Sudan, R. N., and M. J. Keskinen (1979), Theory of strongly turbulent two-dimensional convection of low-pressure plasma, Phys., Fluids, 22, 2305.
22. Sudan, R. N., J. Akinrimishi, and D. T. Farley (1973), Generation of small scale irregularities in the equatorial electrojet, J. Geophys. Res., 78, 240.
23. Swartz, W. E., and D. T. Farley (1994), High-resolution radar measurements of turbulent structures in the equatorial electrojet, J. Geophys. Res., 99, 309.
24. Tiwari, D., K. A Patra, K. S. Viswanathan, N. Jyoti, C. V. Devasia, K. S. V. Subbarao, and R. Sridharan (2003), Simultaneous radar observations of the electrojet plasma irregularities as 18 and 54.95 MHz over Trivandrum, India, J. Geophys. Res., 108(A10), 1368, doi:10.1029/2002JA009698.
25. Tsunoda, R. T., and W. L. Ecklund (2002), East-west asymmetry in type-2 echoes and enhanced electron drift in the equatorial electrojet, Geophys. Res. Lett., 29(8), 1180, doi:10.1029/2001GL014582.