Abstract
We present an analysis of an eight-year dataset of field-aligned optical images of the low-latitude, nighttime ionosphere. The duration of this dataset allows us to study the climatology of ionospheric structures, such as equatorial plasma bubbles (EPBs) and medium-scale traveling ionospheric disturbances (MSTIDs) during both high and low solar activity. In this chapter, we concentrate on the climatology of EPBs during both high and low solar activity and a possible linkage between EPBs and MSTIDs during low solar activity. In contrast to climatologies derived from forward-scattering (scintillation) measurement techniques and satellite-based in-situ measurements, we do not find a reduction in the occurrence of EPBs at low solar activities. However, we do find that EPBs typically occur later in the evening at low solar activity levels. We also present statistics for the occurrence of MSTIDs seen to the south of Hawaii during low solar activity, which indicate that the increase in post-midnight, quiet-time EPB occurrence during low solar activity is accompanied by an increase in MSTID occurrence.
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References
Aarons J (1993) The longitudinal morphology of equatorial F-layer irregularities relevant to their occurrence. Space Sci Rev 63:209–243
Booker HG, Wells HW (1938) Scatter of radio waves by the F-region of the ionosphere. Terr Mag Atmos Elec 43(3):249–256
Dungey JW (1956) Convective diffusion in the equatorial F-region. J Atmos Solar-Terr Phys 9(5–6):304–310
Fejer BG, Scherliess L, de Paula ER (1999) Effects of the vertical plasma drift velocity on the generation and evolution of equatorial spread F. J Geophys Res 104(A9):859–869. doi:10.1029/1999JA900271
Garcia FJ, Kelley MC, Makela JJ, Huang C-S (2000) Airglow observations of mesoscale low-velocity traveling ionospheric disturbances at midlatitudes. J Geophys Res 105(A8):18407–18415
Gentile LC, Burke WJ, Rich FJ (2006) A climatology of equatorial plasma bubbles from DMSP 1989–2004. Radio Sci 41: RS5S21. doi:10.1029/2005RS003340
Hysell DL, Burcham JD (2002) Long term studies of equatorial spread F using the JULIA radar at Jicamarca. J Atmos Solar-Terr Phys 64:1531–1543
Kelley MC, Makela JJ, Ledvina BM, Kintner PM (2002) Observations of equatorial spread-F from Haleakala, Hawaii. Geophys Res Lett 29(20):2003. doi:10.1029/2002GL015509
Kotake N, Otsuka Y, Tsugawa T, Ogawa T, Saito A (2006) Climatological study of GPS total electron content variations caused by medium-scale traveling ionospheric disturbances. J Geophys Res 111:A04306. doi:10.1029/2005JA011418
Makela JJ (2006) A review of imaging low-latitude ionospheric irregularity processes. J Atmos Solar-Terr Phys 68(13):1441–1458
Makela JJ, Kelley MC (2003) Field-aligned 777.4-nm composite airglow images of equatorial plasma depletions. Geophys Res Lett 30(8):1442. doi:10.1029/2003GL017106
Makela JJ, Kelley MC, Tsunoda RT (2009) Observations of midlatitude ionospheric instabilities generating meter-scale waves at the magnetic equator. J Geophys Res 114:A01307. doi:10.1029/2007JA012946
Makela JJ, Ledvina BM, Kelley MC, Kintner PM (2004) Analysis of the seasonal variations of equatorial plasma bubble occurrence observed from Haleakala, Hawaii. Ann Geophys 22(9):3109–3121
Martinis C, Baumgardner J, Wroten J, Mendillo M (2010, in press). Seasonal dependence of MSTIDs obtained from 630.0 nm airglow imaging at Arecibo. Geophys Res Lett 37: L11103. doi:10.1029/2010GL043569
Miller ES, Makela JJ, Groves KM, Kelley MC, Tsunoda RT (2010, in press). Coordinated study of coherent radar backscatter and optical airglow depletions in the central pacific. J Geophys Res 115:A06307. doi:10.1029/2009JA014946
Miller ES, Makela JJ, Kelley MC (2009) Seeding of equatorial plasma depletions by polarization electric fields from middle latitudes: experimental evidence. Geophys Res Lett 36(18):L18105. doi:10.1029/2009GL039695
Perkins F (1973) Spread F and ionospheric currents. J Geophys Res 78(1):218–226
Sahai Y, Fagundes PR, Bittencourt JA (2000) Transequatorial F-region ionospheric plasma bubbles: solar cycle effects. J Atmos Solar-Terr Phys 62:1377–1383
Sahai Y et al (2009) Observations of the F-region ionospheric irregularities in the South American sector during the October 2003 “Halloween Storms”. Ann Geophys 27: 4463–4477. doi:10.5194/angeo-27-4463-2009
Shiokawa K, Ihara C, Otsuka Y, Ogawa T (2003). Statistical study of nighttime medium-scale traveling ionospheric disturbances using mid-latitude airglow images. J Geophys Res 108(A1):1052. doi:10.1029/2002JA009491
Shiokawa K, Otsuka Y, Ejiri MK, Sahai Y, Kadota T, Ihara C, Ogawa T, Igarashi K, Miyazaki S, Saiti A (2002). Imaging observations of the equatorward limit of midlatitude traveling ionospheric disturbances. Earth Planets Space 54:57–62
Tinsley BA (1982) Field aligned airglow observations of transequatorial bubbles in the tropical F-region. J Atmos Solar-Terr Phys 44(6):547–557
Tsunoda RT (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(A1):447–456.
Tsunoda RT (2007) Seeding of equatorial plasma bubbles with electric fields from an Es-layer instability. J Geophys Res 112:A06304
Yao D, Makela JJ (2007) Analysis of equatorial plasma bubble zonal drift velocities in the Pacific sector by imaging techniques. Ann Geophys 25(3):701–709
Yeh KC, Liu CH (1982) Radio wave scintillations in the ionosphere. Proc IEEE 70(4):324–360
Acknowledgements
Airglow observations on Mount Haleakala are supported by the Air Force Office of Scientific Research under Contract FA9550-05-0160494 to Cornell University. The continued operation of the instrument would not be possible without the continued on-site support of Jacob Burger. We thank Professor Michael C. Kelley for making the CNFI data available for our use. Work at the University of Illinois is supported by the National Science Foundation through grant ATM-06-044654. Ethan Miller acknowledges further support from a National Science Foundation CEDAR postdoctoral researcher award to JHU/APL.
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Makela, J.J., Miller, E.S. (2011). Influences on the Development of Equatorial Plasma Bubbles: Insights from a Long-Term Optical Dataset. In: Abdu, M., Pancheva, D. (eds) Aeronomy of the Earth's Atmosphere and Ionosphere. IAGA Special Sopron Book Series, vol 2. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0326-1_17
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DOI: https://doi.org/10.1007/978-94-007-0326-1_17
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