Simultaneous middle and upper atmosphere radar and ionospheric sounder observations of midlatitude E region irregularities and sporadic E layer

Journal of Geophysical Research: Space Physics

Volumn 107, Issue A10, 2002, Pages

  Ogawa, T ^a   Takahashi, O ^a   Otsuka, Y ^a   Nozaki, K ^b   Yamamoto, M ^c   Kita, K ^d  

^a NAGOYA UNIVERSITY   (Japan)

^b NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY   (Japan)

^c KYOTO UNIVERSITY   (Japan)

^d FUKUI NATIONAL COLLEGE OF TECHNOLOGY   (Japan)

Author keywords

Ionospheric irregularities; Midlatitude ionosphere; Plasma waves and instabilities; Radar observations; Sporadic E

Indexed keywords

EID: 34547768618     PISSN: None     EISSN: 21699402     Source Type: Journal    
DOI: 10.1029/2001JA900176     Document Type: Article

References (35)

1. Cosgrove, R. B., and R. T. Tsunoda, Polarization electric fields sustained by closed-current dynamo structures in midlatitude sporadic E, Geophys. Res. Lett., 25, 1455-1458, 2001.
2. Fukao, S., M. Yamamoto, R. T. Tsunoda, H. Hayakawa, and T. Mukai, The SEEK (Sporadic- E Experiment over Kyushu) campaign, Geophys. Res. Lett., 25, 1761-1764, 1998.
3. Gurevich, A. V., N. D. Borisov, and K. P. Zybin, Ionospheric turbulence induced in the lower part of the E region by the turbulence of the neutral atmosphere, J. Geophys. Res., 102, 379-388, 1997.
4. Haldoupis, C., K. Schlegel, and D. T. Farley, An explanation for type 1 radar echoes from the midlatitude E-region ionosphere, Geophys. Res. Lett., 23, 97-100, 1996.
5. Huang, C. S., and M. C. Kelley, Numerical simulations of gravity wave modulation of midlatitude sporadic E layers, J. Geophys. Res., 101, 24, 533-24, 543, 1996.
6. Hussey, G. C., K. Schlegel, and C. Haldoupis, Simultaneous 50-MHz coherent backscatter and digital ionosonde observations in the midlatitude E region, J. Geophys. Res., 103, 6991-7001, 1998.
7. Hysell, D. L., and J. D. Burcham, The 30-MHz radar interferometer studies of midlatitude E region irregularities, J. Geophys. Res., 105, 12, 797-12, 812, 2000.
8. Kagan, L. M., and M. C. Kelley, A thermal mechanism for generation of small-scale irregularities in the ionospheric E region, J. Geophys. Res., 105, 5291-5303, 2000.
9. Kagan, L. M., T. Ogawa, S. Fukao, and M. Yamamoto, A role of neutral motions in formation of midlatitude E-region field-aligned irregularities, Geophys. Res. Lett., 27, 939-942, 2000.
10. Kelley, M. C., and L. J. Gelinas, Gradient drift instability in midlatitude sporadic E layers: Localization of physical and wavenumber space, Geophys. Res. Lett., 27, 457-460, 2000.
11. Kyzyurov, Y. V., On the spectrum of mid-latitude sporadic-E irregularities, Ann. Geophys., 18, 1283-1292, 2000.
12. Larsen, M. F., A shear instability seeding mechanism for quasiperiodic radar echoes, J. Geophys. Res., 105, 24, 931-24, 940, 2000.
13. Lee, C. C., J. Y. Liu, C. J. Pan, and K. Igarashi, The heights of sporadic-E layer simultaneously observed by the VHF radar and ionosondes in Chung-Li, Geophys. Res. Lett., 27, 641-644, 2000.
14. Maeda, K., T. Tsuda, and H. Maeda, Theoretical interpretation of the equatorial sporadic E layers, Phys. Rev. Lett., 11, 406-407, 1963.
15. Maruyama, T., S. Fukao, and M. Yamamoto, A possible mechanism for echo striation generation of radar backscatter from midlatitude sporadic E, Radio Sci., 35, 1155-1164, 2000.
16. Mathews, J. D., Sporadic E: Current views and recent progress, J. Atmos. Sol. Terr. Phys., 60, 413-435, 1998.
17. Ogawa, T., and T. Sato, New mechanism of auroral arcs, Planet. Space Sci., 19, 1393-1412, 1971.
18. Ogawa, T., M. Yamamoto, and S. Fukao, Middle and upper atmosphere radar observations of turbulence and movement of midlatitude sporadic E irregularities, J. Geophys. Res., 100, 12, 173-12, 188, 1995.
19. Ogawa, T., M. Yamamoto, and S. Fukao, Sea surface echoes observed with the MU radar under intense sporadic E conditions, J. Geomagn. Geoelectr., 48, 441-451, 1996.
20. Ogawa, T., N. Sekito, K. Nozaki, and M. Yamamoto, Height comparison of midlatitude E region field-aligned irregularities and sporadic E layer, Geophys. Res. Lett., 25, 1813-1816, 1998.
21. Rao, P. B., M. Yamamoto, A. Uchida, I. Hassenpflug, and S. Fukao, MU radar observations of kilometer-scale waves in the midlatitude lower E-region, Geophys. Res. Lett., 27, 3667-3670, 2000.
22. Sato, T., Neutral winds and electrojet irregularities, J. Geophys. Res., 80, 2835-2838, 1975.
23. Sato, T., and T. E. Holzer, Quiet auroral arcs and electrodynamic coupling between the ionosphere and the magnetosphere I, J. Geophys. Res., 78, 7314-7329, 1973.
24. Schlegel, K., and A. V. Gurevich, Radar backscatter from plasma irregularities of the lower E region induced by neutral turbulence, Ann. Geophys., 15, 870-877, 1997.
25. Sinno, K., C. Ouchi, and C. Nemoto, Structure and movement of Es detected by Loran observations, J. Geomagn. Geoelectr, 16, 75-88, 1964.
26. Tanaka, T., and S. V. Venkateswaran, Characteristics of field-aligned R-region irregularities over Iioka (36°N) Japan, I, J. Atmos. Terr. Phys., 44, 381-393, 1982.
27. Tsuda, T., T. Sato, and K.-I. Maeda, Formation of sporadic E layers at temperate latitude due to vertical gradients of charge density, Radio Sci., 1, 212-225, 1966.
28. Tsunoda, R. T., S. Fukao, and M. Yamamoto, On the origin of quasi-periodic radar backscatter from midlatitude sporadic E, Radio Sci., 29, 349-366, 1994.
29. Tsunoda, R. T., M. Yamamoto, H. Mori, and S. Fukao, SEEK S310-25: Quasi-periodic echoes and polarization electric fields, Geophys. Res. Lett., 27, 3281-3284, 2000.
30. Woodman, R. F., M. Yamamoto, and S. Fukao, Gravity wave modulation of gradient drift instabilities in mid-latitude sporadic-E irregularities, Geophys. Res. Lett., 18, 1197-1200, 1991.
31. Yamamoto, M., S. Fukao, R. F. Woodman, T. Ogawa, T. Tsuda, and S. Kato, Mid-latitude E-region field-aligned irregularities observed with the MU radar, J. Geophys. Res., 96, 15, 943-15, 949, 1991.
32. Yamamoto, M., S. Fukao, T. Ogawa, T. Tsuda, and S. Kato, A morphological study of mid-latitude E-region field-aligned irregularities observed with the MU radar, J. Atmos. Terr. Phys., 54, 769-777, 1992.
33. Yamamoto, M., N. Komoda, S. Fukao, R. T. Tsunoda, T. Ogawa, and T. Tsuda, Spatial structure of the E region field-aligned irregularities revealed by the MU radar, Radio Sci., 29, 337-347, 1994.
34. Yamamoto, M., S. Fukao, R. T. Tsunoda, K. Igarashi, and T. Ogawa, Preliminary results from joint measurements of E-region field-aligned irregularities using the MU radar and the frequency-agile radar, J. Atmos. Sol. Terr. Phys., 59, 1655-1663, 1997.
35. Yamamoto, M.-Y., T. Ono, H. Oya, R. T. Tsunoda, M. F. Larsen, S. Fukao, and M. Yamamoto, Structures in sporadic-E observed with an impedance probe during the SEEK campaign: Comparisons with neutral-wind and radar-echo observations, Geophys. Res. Lett., 27, 1781-1784, 1998.