STARE velocity at large flow angles: Is it related to the ion acoustic speed?

Annales Geophysicae

Volumn 24, Issue 3, 2006, Pages 873-885

  Uspensky, M V ^a   Koustov, A V ^b   Nozawa, S ^c  

^a FINNISH METEOROLOGICAL INSTITUTE   (Finland)

^b UNIVERSITY OF SASKATCHEWAN   (Canada)

^c NAGOYA UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

E REGION; ELECTROJET; SOUND VELOCITY;

EID: 33751119891     PISSN: 09927689     EISSN: 14320576     Source Type: Journal    
DOI: 10.5194/angeo-24-873-2006     Document Type: Article

References (30)

1. Bahcivan, H., Hysell, D. L., Larsen, M. F., and Pfaff, R. F.: The 30-MHz imaging radar observations of auroral irregularities during the JOULE campaign, J. Geophys. Res., 110, A05307, doi:10.1029/2004/JA010975, 2005.
2. Bahcivan, H. and Hysell, D. L.: A model of secondary Farley-Buneman waves in the auroral electrojet, J. Geophys. Res., A01304, doi:10.1029/2005JA011408, 2006.
3. Chen, P-R., Yi, L., and Nielsen, E.: Variations of the mean phase velocity of 1-m ionospheric plasma waves with the plasma electron temperature, J. Geophys. Res., 100, 1647-1652, 1995.
4. Farley, D. T. and Providakes, J.: The variation with Te and Ti of the velocity of unstable ionospheric two-stream waves, J. Geophys. Res., 94, 15 415-15 420, 1989.
5. Fejer, B. G. and Kelley, M. C.: Ionospheric irregularities, Rev. Geophys., 18, 401-454, 1980.
6. Foster, J. C. and Erickson, P. J.: Simultaneous observations of E-region coherent backscatter and electric field magnitude at F-region heights with the Millstone Hill UHF radar, Geophys. Res. Lett., 27, 3177-3180, 2000.
7. Haldoupis, C. and Schlegel, K.: Direct comparison of 1-m irregularity phase velocity and ion-acoustic speeds in the auroral E-region ionosphere, J. Geophys. Res., 95, 18 989-19 000, 1990.
8. Janhunen, P.: Perpendicular particle simulation of the E region Farley-Buneman instability, J. Geophys. Res., 99, 11 461-11 473, 1994.
9. Jones, B., Williams, P. J. S., Schlegel, K., Robinson, T., and Haggstrom, I.: Interpretation of enhanced electron temperatures measured in the auroral E region during the ERRIS campaign, Ann. Geophys., 9, 55-59, 1991.
10. Kofman W. and Nielsen, E.: STARE and EISCAT measurements: Evidence for the limitation of STARE Doppler velocity observations by the ion acoustic velocity, J. Geophys. Res., 95, 19 131-19 136, 1990.
11. Kohl, H., Nielsen, E., Rinnert, K., and Schlegel, K.: EISCAT results during the ROSE campaign and comparison with STARE measurements, J. Atmos. Terr. Phys., 54, 733-739, 1992.
12. Kustov, A. V. and Haldoupis, C.: Irregularity drift velocity estimates in radar auroral backscatter, J. Atmos. Terr. Phys., 54, 415-423, 1992.
13. Koustov, A. V., Danskin, D. W., Uspensky, M. V., Ogawa, T., Janhunen, P., Nishitani, N., Nozawa, S., Lester, M., and Milan, S.: Velocities of auroral coherent echoes at 12 and 144MHz, Ann. Geophys., 20, 1647-1661, 2002.
14. Makarevitch, R. A., Koustov, A. V., Sofko, G. J., Andre, D., and Ogawa, T.: Multifrequency measurements of HF Doppler velocity in the auroral E region, J. Geophys. Res., 107, doi:10.1029/2001JA000268, 2002.
15. Nielsen, E. and Schlegel, K.: Coherent radar Doppler measurements and their relationship to the ionospheric electron drift velocity, J. Geophys. Res, 90, 3498-3504, 1985.
16. Nielsen, E., Uspensky, M., Kustov, A., Huuskonen, A., and Kangas, J.: On the dependence of the Farley-Buneman turbulence level on ionospheric electric field, J. Atmos. Terr. Phys., 50, 601-605, 1988.
17. Nielsen, E., del Pozo, C. F., and Williams, P. J. S.: VHF coherent radar signals from the E region ionosphere and the relationship to electron drift velocity and ion-acoustic velocity, J. Geophys. Res., 107, doi:10.1029/2001JA900111, 2002.
18. Sahr, J. D. and Fejer, B. G.: Auroral electrojet plasma irregularity theory and experiment: A critical review of present understanding and future directions, J. Geohys. Res., 101, 26 893-26 909, 1996.
19. Schlegel, K.: Interpretation of auroral radar experiments using a kinetic theory of the two-stream instability, Radio Sci., 18, 108-118, 1983.
20. Schlegel, K.: Coherent backscatter from ionospheric E-region plasma irregularities, J. Atmos. Terr. Phys., 58, 933-941, 1996.
21. Schlegel K. and Thomas, E. C.: Reply, J. Geophys. Res., 93, 5987-5988, 1988.
22. St-Maurice, J.-P. and Hamza, A. M.: A new nonlinear approach to the theory of E-region irregularities, J. Geophys. Res., 106, 1751-1760, 2001.
23. Unwin, R. S. and Cummack, C. H.: Drift spikes: The ionospheric signature of large poleward directed electric fields at subauroral latitudes, IMS in Antarctica, Memoirs of National Institute of Polar Research, No.16, 72-83, 1980.
24. Uspensky, M. V.: On the altitudinal profile of auroral radar backscatter, Radio Sci., 20, 735-739, 1985.
25. Uspensky, M. V., Koustov, A. V., Eglitis, P., Huuskonen, A., Milan, S. E., Pulkkinen, T., and Pirjola, R.: CUTLASS HF radar observations of high-velocity E-region echoes, Ann. Geophys., 19, 411-424, 2001.
26. Uspensky, M., Koustov, A., Janhunen, P., Pellinen, R., Danskin, D., and Nozawa, S.: STARE velocities: Importance of off-orthogonality and ion motion, Ann. Geophys., 21, 729-743, 2003.
27. Uspensky, M., Koustov, A., Janhunen, P., Nielsen, E., Kauristie, K., Amm, O., Pellinen, R., Opgenoorth, H., and Pirjola, R.: STARE velocities: 2. Evening westward electron flow, Ann. Geophys., 22, 1077-1091, 2004.
28. Uspensky, M. V., Koustov, A., Sofieva, V., Amm, O., Kauristie, K., Schmidt, W., Nielsen, E., Pulkkinen, T., Pellinen, R., Milan, S., and Pirjola, R.: Multi-pulse and double-pulse velocities of STARE echoes, Radio Sci., 40, RS3008, doi:10.1029/2004RS003151, 2005.
29. Uspensky, M., Kustov, A., Williams, P. J. S., Huuskonen, A., and Kangas, J.: Effect of unresolved electrojet microstructure on measurements of irregularity drift velocity in auroral radar backscatter, Adv. Space Sci., 9, 119-122, 1989.
30. Volosevich, A. V. and Galperin, Y. I.: Nonlinear wave structures in collisionless plasma of auroral E region ionosphere, Ann. Geophys., 15, 890-989, 1997.