Conjugate Point Equatorial Experiment (COPEX) campaign in Brazil: Electrodynamics highlights on spread F development conditions and day-to-day variability

Journal of Geophysical Research: Space Physics

Volumn 114, Issue 4, 2009, Pages

  Abdu, M A ^a   Batista, I S ^a   Reinisch, B W ^d   De Souza, J R ^a   Sobral, J H A ^a   Pedersen, T R ^b   Medeiros, A F ^c   Schuch, N J ^a   De Paula, E R ^a   Groves, K M ^b  

^a INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS   (Brazil)

^b AIR FORCE RESEARCH LABORATORY   (United States)

^c FEDERAL UNIVERSITY OF CAMPINA GRANDE   (Brazil)

^d UNIVERSITY OF MASSACHUSETTS LOWELL   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 67650151003     PISSN: None     EISSN: 21699402     Source Type: Journal    
DOI: 10.1029/2008JA013749     Document Type: Article

References (81)

1. Abdu, M. A. (1997), Major phenomena of the equatorial ionosphere thermosphere system under disturbed conditions, J. Atmos. Sol. Terr. Phys., 59(13), 1505-1519, doi:10.1016/S1364-6826(96)00152-6.
2. Abdu, M. A. (2001), Outstanding problems in the equatorial ionospherethermosphere electrodynamics relevant to spread F, J. Atmos. Sol. Terr. Phys., 63, 869-884, doi:10.1016/S1364-6826(00)00201-7.
3. Abdu, M. A., J. A. Bittencourt, and I. S. Batista (1981a), Some characteristics of spread F at magnetic equatorial station Fortaleza, J. Geophys. Res., 86, 6836-6842, doi:10.1029/JA086iA08p06836.
4. Abdu, M. A., J. A. Bittencourt, and I. S. Batista (1981b), Magnetic declination control of the equatorial F region dynamo field development and spread F, J. Geophys. Res., 86, 11,443-11,446, doi:10.1029/ JA086iA13p11443.
5. Abdu, M. A., R. T. de Medeiros, J. H. A. Sobral, and J. A. Bittencourt (1983a), Spread F plasma vertical rise velocities determined from spaced ionosonde observations, J. Geophys. Res., 88, 9197-9204, doi:10.1029/JA088iA11p09197.
6. Abdu, M. A., R. T. de Medeiros, J. A. Bittencourt, and I. S. Batista (1983b), Vertical ionization drift velocities and range spread F in the evening equatorial ionosphere, J. Geophys. Res., 88, 399-402, doi:10.1029/JA088iA01p00399.
7. Abdu, M. A., J. H. A. Sobral, P. Richards, M. M. De Gonzalez, Y. N. Huang, B. M. Reddy, K. Cheng, E. P. Szuszcewicz, and I. S. Batista (1996), Zonal/meridional wind and disturbance dynamo electric field control of the low-latitude ionosphere based on the SUNDIAL/ATLAS1 campaign, J. Geophys. Res., 101(A12), 26,729-26,740, doi:10.1029/96JA00321.
8. Abdu, M. A., I. S. Batista, H. Takahashi, J. MacDougall, J. H. Sobral, A. F. Medeiros, and N. B. Trivedi (2003), Magnetospheric disturbance induced equatorial plasma bubble development and dynamics: A case study in Brazilian sector, J. Geophys. Res., 108(A12), 1449, doi:10.1029/2002JA009721.
9. Abdu, M. A., I. S. Batista, B. W. Reinisch, J. R. de Souza, E. R. de Paula, J. H. A. Sobral, and T. W. Bullet (2004), Equatorial spread F variability investigations in Brazil: Preliminary results from Conjugate Point Equatorial Experiments Campaign-COPEX, Eos Trans. AGU, 85(17), Jt. Assem. Suppl., Abstract SA43B-06.
10. Abdu, M. A., I. S. Batista, B. W. Reinisch, J. H. A. Sobral, and A. J. Carrasco (2006a), Equatorial F region evening vertical drift during southem winter months: A comparison of observational data with IRI descriptions, Adv. Space Res., 37, 1007-1017, doi:10.1016/j.asr.2005.06.074.
11. Abdu, M. A., K. N. Iyer, R. T. de Medeiros, I. S. Batista, and J. H. A. Sobral (2006b), Thermospheric meridional wind control of equatorial spread F and evening prereversal electric field, Geophys. Res. Lett., 33, L07106, doi:10.1029/2005GL024835.
12. Abdu, M. A., P. P. Batista, I. S. Batista, C. G. M. Brum, A. Carrasco, and B. W. Reinisch (2006c), Planetary wave oscillations in mesospheric winds, equatorial evening prereversal electric field and spread F, Geophys. Res. Lett., 33, L07107, doi:10.1029/2005GL024837.
13. Abdu, M. A., E. A. Kherani, I. S. Batista, E. R. de Paula, and D. C. Fritts (2009), An evaluation of the ESF/bubble irregularity growth conditions under gravity wave influences based on observational data from the SpreadFEx campaign, Ann. Geophys., in press.
14. Anderson, D. N., and M. Mendillo (1983), Ionospheric conditions affecting the evolution of equatorial plasma depletions, Geophys. Res. Lett., 10, 541-544, doi:10.1029/GL010i007p00541.
15. Anderson, D. N., B. W. Reinisch, C. Valladares, J. Chau, and O. Veliz (2004), Forecasting the occurrence of ionospheric scintillation activity in the equatorial ionosphere on a day-to-day basis, J. Atmos. Sol. Terr. Phys., 66, 1567-1572, doi:10.1016/j.jastp.2004.07.010.
16. Bailey, G. J., and N. Balan (1996), Low-latitude ionosphere-plasmasphere model, in Solar-Terrestrial Energy Program: Handbook of Ionospheric Models, edited by R. W. Schunk, pp. 173-206, Utah State Univ., Logan.
17. Batista, I. S., M. A. Abdu, and J. A. Bittencourt (1986), Equatorial F region vertical plasma drifts: Seasonal and longitudinal asymmetries in the American sector, J. Geophys. Res., 91, 12,055-12,064, doi:10.1029/JA091iA11p12055.
18. Batista, I. S., M. A. Abdu, A. J. Carrasco, B. W. Reinisch, E. R. de Paula, N. J. Schuch, and F. Bertoni (2008), Equatorial spread F and sporadic E-layer connections during the Brazilian Conjugate Point Equatorial Experiment-COPEX, J. Atmos. Sol. Terr. Phys., 70, 1133-1143, doi:10.1016/j.jastp.2008.01.007.
19. Bertoni, F., I. S. Batista, M. A. Abdu, B. W. Reinisch, and E. A. Kherani (2006), A comparison of ionospheric vertical drift velocities measured by Digisonde and incoherent scatter radar at the magnetic equator, J. Atmos. Sol. Terr. Phys., 68(16), 1851-1852.
20. Bittencourt, J. A., and M. A. Abdu (1981), A theoretical comparison between apparent and real vertical ionization drift velocities in the equatorial F region, J. Geophys. Res., 86, 2451-2455, doi:10.1029/JA086iA04p02451.
21. Bittencourt, J. A., and Y Sahai (1978), F-region neutral winds from ionosonde measurements of hmF2 at low latitude magnetic conjugate regions, J. Atmos. Terr. Phys., 40(6), 669-676, doi:10.1016/0021-9169(78) 90124-1.
22. Burke, W. J., C. Y Huang, L. C. Gentile, and L. Bauer (2004), Seasonallongitudinal variability of equatorial plasma bubbles, Ann. Geophys., 22, 3089-3098.
23. Cosgrove, R. B., and R. T. Tsunoda (2002), A direction-dependent instability of sporadic-E layers in the nighttime midlatitude ionosphere, Geophys. Res. Lett., 29(18), 1864, doi:10.1029/2002GL014669.
24. de Medeiros, R. T., M. A. Abdu, and I. S. Batista (1997), Thermospheric meridional wind at low latitude from measurements of F layer peak height, J. Geophys. Res., 102(A7), 14,531-14,540, doi:10.1029/97JA00799.
25. Devasia, C. V., et al. (2002), On the possible linkage of thermospheric meridional winds with equatorial spread F, J. Atmos. Sol. Terr. Phys., 64, 1-12, doi:10.1016/S1364-6826(01)00089-X.
26. Farley, D. T. (1960), A. theory of electrostatic fields in the ionosphere at nonpolar geomagnetic latitudes, J. Geophys. Res., 65(3), 869-877, doi:10.1029/JZ065i003p00869.
27. Farley, D. T., B. B. Balsley, and R. F. Woodman (1970), Equatorial spread F: Implications of VHF radar observations, J. Geophys. Res., 75(34), 7199-7216, doi:10.1029/JA075i034p07199.
28. Fejer, B. G., E. R. de Paula, S. A. Gonzalez, and R. F. Woodman (1991), Average vertical and zonal F region plasma drifts over Jicamarca, J. Geophys. Res., 96, 13,901-13,906, doi:10.1029/91JA01171.
29. Fejer, B. G., L. Scherliess, and E. R. de Paula (1999), Effects of the vertical plasma drift velocity on the generation and evolution of equatorial spread F, J. Geophys. Res., 104, 19,859-19,870, doi:10.1029/1999JA900271.
30. Fritts, D. C., et al. (2008), Gravity wave and tidal influences on equatorial spread F based on observations during the Spread F Experiment (SpreadFEx), Ann. Geophys., 26, 3235-3252.
31. Haerendel, G., J. V. Eccles, and S. Cakir (1992), Theory for modeling the equatorial evening ionosphere and the origin of the horizontal plasma flow, J. Geophys. Res., 97(A2), 1209-1223, doi:10.1029/91JA02226.
32. i gradients below the equatorial F peak, J. Geophys. Res., 78, 1167-1173, doi:10.1029/JA078i007p01167.
33. Hedin, A. E., et al. (1996), Empirical wind model for the upper, middle and lower atmosphere, J. Atmos. Sol. Terr. Phys., 58, 1421-1447, doi:10.1016/0021-9169(95)00122-0.
34. Heelis, R. A., P. C. Kendall, R. J. Moffet, D. W. Windle, and H. Rishbeth (1974), Electrical coupling of the E- and F-regions and its effects on the F region drifts and winds, Planet. Space Sci., 22, 743-756, doi:10.1016/0032-0633(74)90144-5.
35. Hysell, D. L., and E. Kudeki (2004), Collisional shear instability in the equatorial F region ionosphere, J. Geophys. Res., 109, A11301, doi:10.1029/2004JA010636.
36. c for the meridional wind to play a deterministic role in the bottomside spread F and its dependence on solar activity, Geophys. Res. Lett., 31, L12809, doi:10.1029/2004GL019455.
37. Kelley, M. C. (1989), The Earth's Ionosphere, Plasma Physics and Electrodynamics, Academic, San Diego, Calif.
38. Keskinen, M. J., S. L. Ossakow, and B. G. Fejer (2003), Three-dimensional nonlinear evolution of equatorial ionospheric spread-F bubbles, Geophys. Res. Lett., 30(16), 1855, doi:10.1029/2003GL017418.
39. Khmyrov, G. M., I. A. Galkin, A. V. Kozlov, B. W. Reinisch, J. McElroy, and C Dozois (2008), Exploring Digisonde ionogram data with SAO-X and DIDBase, in Radio Sounding and Plasma Physics, AIP Conf. Proc., vol. 974, pp. 175-185, doi:10.1063/1.2885027.
40. Kil, H., and R. A. Heelis (1998), Global distribution of density irregularities in the equatorial ionosphere, J. Geophys. Res., 103, 407-417, doi:10.1029/97JA02698.
41. Kozlov, A., and V. V. Paznukhov (2008), Digisonde drift analysis software, in Radio Sounding and Plasma Physics, AIP Conf. Proc., vol. 974, pp. 167-174, doi:10.1063/1.2885026.
42. Kudeki, E., A. Akgiray, M. Milla, J. L. Chau, and D. L. Hysell (2007), Equatorial spread-F initiation: Post-sunset vortex, thermospheric winds, gravity waves, J. Atmos. Sol. Terr. Phys., 69, 2416-2427, doi:10.1016/j.jastp. 2007.04.012.
43. MacDougall, J. W., M. A. Abdu, P. T. Jayachandran, J. F. Cecile, and I. S. Batista (1998), Presunrise spread F at Fortaleza, J. Geophys. Res., 103(A10), 23,415-23,425, doi:10.1029/98JA01949.
44. Maruyama, T. (1988), A diagnostic model for equatorial spread F: 1. Model description and application to electric fields and neutral wind effects, J. Geophys. Res., 93, 14,611-14,622, doi:10.1029/JA093iA12p14611.
45. Maruyama, T., and N. Matuura (1984), Longitudinal variability of annual changes in activity of equatorial spread F and plasma bubbles, J. Geophys. Res., 89, 10,903, doi:10.1029/JA089iA12p10903.
46. Maruyama, T., M. Kawamura, S. Saito, K. Nozaki, H. Kato, N. Hemmakom, T. Boonchuk, T. Komolmis, and C. H. Duyen (2007), Low latitude ionosphere- thermosphere dynamics studies with ionosonde chain in Southeast Asia, Ann. Geophys., 25, 1569-1577.
47. McNamara, L. F., J. M. Retterer, M. A. Abdu, I. S. Batista, and B. W. Reinisch (2008), F2 peak parameters, drifts and spread F derived from Digisonde ionograms for the COPEX campaign in Brazil, J. Atmos. Sol. Terr. Phys., 70, 1144-1158, doi:10.1016/j.jastp.2008.02.001.
48. Mendillo, M., J. Meriwether, and M. Biondi (2001), Testing the thermospheric neutral wind suppression mechanism for day-to-day variability of equatorial spread.F J. Geophys. Res., 106(A3), 3655-3663, doi:10.1029/2000JA000148.
49. Muella, T. A. H., E. R. de Paula, I. J. Kantor, I. S. Batista, J. H. A. Sobral, M. A. Abdu, K. M. Groves, P. M. Kintner, and P. F. Smorigo (2008), GPS L-band scintillations and ionospheric irregularity zonal drifts inferred at equatorial and low latitude regions, J. Atmos. Sol. Terr. Phys., 70, 1261-1272, doi:10.1016/j.jastp.2008.03.013.
50. Nicolls, M. J., M. C. Kelley, M. N. Vlasov, Y Sahai, P. R. Fagundes, F. Becker-Guedes, and W. L. C. Lima (2006), Observation and modeling of post-midnight uplifts near the magnetic equator, Ann. Geophys., 24, 1317-1331.
51. Otsuka, Y., K. Shiokawa, and T. Ogawa (2002), Geomagnetic conjugate observations of equatorial airglow depletions, Geophys. Res. Lett., 29(15), 1753, doi:10.1029/2002GL015347.
52. Pingree, J. E., and B. G. Fejer (1987), On the height variation of the equatorial F region vertical plasma drifts, J. Geophys. Res., 92, 4763-4766, doi:10.1029/JA092iA05p04763.
53. Prakash, S. (1999), Production of electric field perturbations by gravity wave winds in the E region suitable for initiating equatorial spread F, J. Geophys. Res., 104(A5), 10,051-10,069, doi:10.1029/1999JA900028.
54. Raghavarao, M., Nageswara Rao, J. H. Sastri, G. D. Vyas, and M. Srirama (1988), Role of equatorial ionization anomaly in the initiation of equatorial spread F, J. Geophys. Res., 93, 5959-5964, doi:10.1029/JA093iA06p05959.
55. Rastogi, R. G. (1980), Seasonal and solar cycle variations of equatorial spread-F in the American zone, J. Atmos. Terr. Phys., 42, 593-597, doi:10.1016/0021-9169(80)90093-8.
56. Reinisch, B. W. (1996), Modem ionosondes, in Modern Ionospheric Science, edited by H. Kohl, R. Rüster, and K. Schlegel, Eur. Geophys. Soc., pp. 440-458, Katlenburg-Lindau, Germany.
57. Reinisch, B. W., M. A. Abdu, I. S. Batista, G. S. Sales, G. Khmyrov, T. A. Bullet, J. Chau, and V. Rios (2004), Multistation Digisonde observations of equatorial spread F in South America, Ann. Geophys., 22, 3145-3153.
58. Richmond, A. D., C. Peymirat, and R. G. Roble (2003), Long-lasting disturbances in the equatorial ionospheric electric field simulated with a coupled magnetosphere-ionosphere-thermosphere model, J. Geophys. Res., 108(A3), 1118, doi:10.1029/2002JA009758.
59. Rishbeth, H. (1971), Polarization fields produced by winds in the equatorial F region, Planet. Space Sci., 19, 357-369, doi:10.1016/00320633(71)90098-5.
60. Rishbeth, H., S. Ganguly, and J. C. G. Walker (1978), Field-aligned and field-perpendicular velocities in the ionospheric F2-layer, J. Atmos. Terr. Phys., 40, 767-784, doi:10.1016/0021-9169(78)90028-4.
61. Saito, S., and T. Maruyama (2006), Ionospheric height variations observed by ionosondes along magnetic meridian and plasma bubble onsets, Ann. Geophys., 24, 2991-2996.
62. Sales, G., B. Reinisch, J. Scali, C. Dozois, T. Bullert, E. Weber, and P. Ning (1996), Spread Fand the structure of equatorial ionization depletions in the southern anomaly region, J. Geophys. Res., 101(A12), 26,819-26,827, doi:10.1029/96JA01946.
63. Sastri, J. H., M. A. Abdu, I. S. Batista, and J. H. A. Sobral (1997), Onset conditions of equatorial (range) spread F at Fortaleza, Brazil, during the June solstice, Z Geophys. Res., 102(A11), 24,013-24,021, doi:10.1029/97JA02166.
64. Scali, J. L., B. W. Reinisch, C. J. Heinselman, and T. Bullett (1995), Coordinated Digisonde and incoherent scatter radar F region drift measurements at Sondre Stromfjord, Radio Sci., 30, 1481-1498, doi:10.1029/95RS01730.
65. Scherliess, L., and B. G. Fejer (1999), Radar and satellite global equatorial F region global equatorial F region vertical drift model, J. Geophys. Res., 104, 6829-6842, doi:10.1029/1999JA900025.
66. Sekar, R., and R. Raghavarao (1995), Critical role of the equatorial topside F region on the evolutionary characteristics of the plasma bubbles, Geophys. Res. Lett., 22(23), 3255-3258, doi:10.1029/95GL03078.
67. Sobral, J. H. A., and M. A. Abdu (1990), Latitudinal gradient in the plasma bubble zonal velocities as observed by scanning 630-nm airglow measurements, J. Geophys. Res., 95(A6), 8253-8257, doi:10.1029/ JA095iA06p08253.
68. Sobral, J. H. A., M. A. Abdu, H. Takahashi, M. J. Taylor, E. R. de Paula, C. J. Zamlutti, and G. L. Borba (2002), Iionospheric plasma bubble climatology over Brazil based on 22 years (1977-1998) of OI 630 nm airglow observations, J. Atmos. Sol. Terr. Phys., 64(12-14), 1517-1524, doi:10.1016/S1364- 6826(02)00089-5.
69. Sobral, J. H. A., et al. (2009), Ionospheric zonal velocities at conjugate points over Brazil during the COPEX campaign: Experimental observations and theoretical validations, J. Geophys. Res., 114, A04309, doi:10.1029/2008JA013896.
70. Souza, J. R., M. A. Abdu, I. S. Batista, and G. J. Bailey (2000), Determination of vertical plasma drift and meridional wind using the Sheffield University Plasmasphere Ionosphere Model and ionospheric data at equatorial and low latitudes in Brazil: Summer solar minimum and maximum conditions, J. Geophys. Res., 105(A6), 12,813-12,821, doi:10.1029/1999JA000348.
71. Sridharan, R., D. Paliam Raju, R. Raghavarao, and P. S. V. Rao (1994), Precursor to equatorial spread-F in the OI 630.0 nm dayglow, Geophys. Res. Lett., 21, 2797-2800, doi:10.1029/94GL02732.
72. Su, S.-Y, C. K. Chau, and C. H. Liu (2008), On monthly/seasonal/ longitudinal variation of equatorial irregularity occurrences and their relationship with the postsunset vertical drift velocities, J. Geophys. Res., 113, A05307, doi:10.1029/2007JA012809.
73. Sultan, P. J. (1996), Linear theory and modeling of the Rayleigh-Taylor instability leading to the occurrence of equatorial spread F, J. Geophys. Res., 101, 26,875-26,891, doi:10.1029/96JA00682.
74. Thampi, S. V., S. Ravindran, T. K. Pant, C. V. Devasia, P. Sreelatha, and R. Sridharan (2006), Deterministic prediction of post-sunset ESF based on the strength and asymmetry of EIA from ground based TEC measurements: Preliminary results, Geophys. Res. Lett., 33, L13103, doi:10.1029/2006GL026376.
75. Tsunoda, R. T. (1981), Time evolution and dynamics of equatorial backscatter plumes: 1. Growth phase, J. Geophys. Res., 86, 139-149, doi:10.1029/JA086iA01p00139.
76. Tsunoda, R. T. (1985), Control of the seasonal and longitudinal occurrence of equatorial scintillations by the longitudinal gradient in integrated E region Pedersen conductivity, J. Geophys. Res., 90, 447-456, doi:10.1029/JA090iA01p00447.
77. Tsunoda, R. T. (2007), Seeding of equatorial plasma bubbles with electric fields from and Fs-layer instability, J. Geophys. Res., 112, A06304, doi:10.1029/2006JA012103.
78. Tsunoda, R. T. (2008), Satellite traces: An ionogram signature for largescale wave structure and a precursor for equatorial spread F, Geophys. Res. Lett., 35, L20110, doi:10.1029/2008GL035706.
79. Valladares, C. E., S. Basu, K. Groves, M. P. Hagan, D. Hysell, A. J. Mazella Jr., and R. E. Sheehan (2001), Measurement of the latitudinal distributions of total electron content during equatorial spread F events, J. Geophys. Res., 106, 29,133-29,152, doi:10.1029/2000JA000426.
80. Woodman, R. F., and C. LaHoz (1976), Radar observations of F region equatorial irregularities, J. Geophys. Res., 81, 5447-5466, doi:10.1029/JA081i031p05447.
81. Zalesak, S. T., S. L. Ossakow, and P. K. Chaturvedi (1982), Nonlinear equatorial spread F: The effect of neutral winds and background Pedersen conductivity, J. Geophys. Res., 87, 151-166, doi:10.1029/JA087iA01pO0151.