Onset conditions of equatorial (range) spread F at Fortaleza, Brazil, during the June solstice

Journal of Geophysical Research: Space Physics

Volumn 102, Issue A11, 1997, Pages 24013-24021

  Sastri, J H ^a,b   Abdu, M A ^a   Batista, I S ^a   Sobral, J H A ^a  

^a INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS   (Brazil)

^b INDIAN INSTITUTE OF ASTROPHYSICS   (India)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 37149012085     PISSN: 01480227     EISSN: None     Source Type: Journal    
DOI: 10.1029/97JA02166     Document Type: Article

References (13)

1. Abdu, M. A., Major phenomena of the equatorial ionosphere-thermosphere system under disturbed conditions, J. Atmos. Terr. Phys., in press, 1997.
2. Abdu, M. A., I. S. Batista, and J. A. Bittencourt, Some characteristics of spread F at the magnetic equatorial station Fortaleza, J. Geophys. Res., 86, 6836-6842, 1981a.
3. Abdu, M. A., J. A. Bittencourt, and I. S. Batista, Magnetic declination control of the equatorial F region dynamo electric fields development and spread F, J. Geophys. Res., 86, 11,443-11,446, 1981b.
4. Abdu, M. A., R. T. de Medeiros, and J. H. A. Sobral, Equatorial spread F instability conditions as determined from ionograms, Geophys. Res. Lett., 9, 692-695, 1982.
5. Abdu, M. A., R. T. de Medeiros., J. A. Bittencourt, and I. S. Batista, Vertical ionization drift velocities and range type spread Fin the evening equatorial ionosphere, J. Geophys. Res., 88, 399-402, 1983a.
6. Abdu, M. A., R. T. de Medeiros, and Y. Nakamura, Latitudinal and magnetic flux tube extension of the equatorial spread F irregularities, J. Geophys. Res., 88, 4861-4868, 1983b.
7. Abdu, M. A., I. S. Batista., G. O. Walker., J. H. A. Sobral., N. B. Trivedi, and E. R. de Paula, Equatorial electric fields during magnetospheric disturbances: Local time/longitude dependencies from recent EITS campaigns, J. Atmos: Terr. Phys., 57, 1065-1083, 1995.
8. Abdu, M. A., I, S. Batista., P. Muralikrishna, and J. H. A. Sobral, Long term trends in sporadic E layers and electric fields over Fortaleza, Brazil, Geophys. Res. Lett., 23, 757-760, 1996.
9. Batista, I. S., M. A. Abdu, and J. A. Bittencourt, Equatorial F region vertical drifts: Seasonal and longitudinal asymmetries in the American sector, J. Geophys. Res., 91, 12,055-12,064, 1986.
10. Batista, I. S., M. A. Abdu., and R. A. Medrano, Magnetic activity effects on range type spread F and vertical plasma drift at Fortaleza and Huancayo as studied through ionosonde measurements and theoretical modeling, Ann. Geophys., 8, 357-364, 1990.
11. Tsunoda, R. T., and D. R. White, On the generation and growth of equatorial backscatter plumes, 1, Wave structures in the bottomside F layer, J. Geophys. Res., 86, 3610-3616, 1981.
12. Tsunomura, S., and T. Araki, Numerical analysis of equatorial enhancement of geomagnetic sudden commencement, Planet. Space Sci., 32, 599-604, 1984.
13. Zalesak, S. T., S. L. Ossakow, and P. K. Chaturvedi, Nonlinear equatorial spread F: The effect of neutral winds and background Pedersen conductivity, J. Geophys. Res., 87, 151-166, 1982.