Energetic electron precipitation during substorm injection events: High-latitude fluxes and an unexpected midlatitude signature

Journal of Geophysical Research: Space Physics

Volumn 113, Issue 10, 2008, Pages

  Clilverd, Mark A ^a   Rodger, Craig J ^b   Brundell, James ^c   Bähr, John ^b   Cobbett, Neil ^a   Moffat Griffin, Tracy ^a   Kavanagh, Andrew J ^d   Seppälä, Annika ^a,e   Thomson, Neil R ^b   Friedel, Reiner H W ^f   Menk, Frederick W ^g,h  

^a BRITISH ANTARCTIC SURVEY   (United Kingdom)

^b UNIVERSITY OF OTAGO   (New Zealand)

^c Space Plasma Environment and Radio Science Group Department of Communication Systems Lancaster University ^*

^d LANCASTER UNIVERSITY   (United Kingdom)

^e FINNISH METEOROLOGICAL INSTITUTE   (Finland)

^f LOS ALAMOS NATIONAL LABORATORY   (United States)

^g CSIRO   (Australia)

^h UNIVERSITY OF NEWCASTLE   (Australia)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 57549094968     PISSN: None     EISSN: 21699402     Source Type: Journal    
DOI: 10.1029/2008JA013220     Document Type: Article

References (38)

1. Bailey, D. K. (1968), Some quantitative aspects of electron precipitation in and near the auroral zone, Rev. Geophys., 6, 289-346.
2. Baker, D. N., W. Aiello, J. R. Asbridge, R. D. Belian, P. R. Higbie, R. W. Klebesadel, J. G. Laros, and E. R. Tech (1985), Los Alamos energetic particle sensor systems at geostationary orbit, AIAA-1985-243, Am. Inst. of Aeronaut. and Astronaut., Reston, Va.
3. Barr, R., D. L. Jones, and C. J. Rodger (2000), ELF and VLF radio waves, J. Atmos. Sol. Terr. Phys., 62, 1689-1718, doi: 10.1016/S1364-6826(00) 00121-8.
4. Beharrell, M. J., and F. Honary (2008), A new method for deducing the effective collision frequency profile in the D-region, J. Geophys. Res., 113, A05303, doi: 10.1029/2007JA012650.
5. Belian, R. D., G. R. Gisler, T. Cayton, and R. Christensen (1992), High-Z energetic particles at geostationary orbit during the great solar proton event series of October 1989, J. Geophys. Res., 97, 16,897-16,906.
6. Berkey, F. T., V. M. Driatskiy, K. Henriksen, B. Hultqvist, D. H. Jelly, T. I. Shchuka, A. Theander, and J. Yliniemi (1974), A synoptic investigation of particle precipitation dynamics for 60 substorms in IQSY (1964-1965) and IASY (1969), Planet. Space Sci., 22, 255-307, doi:10.1016/0032-0633(74)90028- 2.
7. Bortnik, J., R. M. Thorne, and N. Meredith (2008), The unexpected origin of plasmaspheric hiss from discrete chorus emissions, Nature, 452, 62-66, doi:10.1038/nature06741.
8. Clilverd, M. A., R. F. Yeo, D. Nunn, and A. J. Smith (1999), Latitudinally dependent Trimpi effects: Modeling and observations, J. Geophys. Res., 104, 19,881-19,887.
9. Clilverd, M. A., D. Nunn, S. J. Lev-Tov, U. S. Inan, R. L. Dowden, C. J. Rodger, and A. J. Smith (2002), Determining the size of lightning-induced electron precipitation patches, J Geophys. Res., 107(A8), 1168, doi:10.1029/2001JA000301.
10. Clilverd, M. A., C. J. Rodger, and T. Ulich (2006a), The importance of atmospheric precipitation in storm-time relativistic electron flux drop outs, Geophys. Res. Lett, 33, L01102, doi:10.1029/2005GL024661.
11. Clilverd, M. A., A. Seppälä, C. J. Rodger, N. R. Thomson, P. T. Verronen, E. Turunen, T. Ulich, J. Lichtenberger, and P. Steinbach (2006b), Modeling polar ionospheric effects during the October-November 2003 solar proton events, Radio Sci., 41, RS2001, doi:10.1029/2005RS003290.
12. Clilverd, M. A., C. J. Rodger, R. M. Millan, J. G. Sample, M. Kokorowski, M. P. McCarthy, T. Ulich, T. Raita, A. J. Kavanagh, and E. Spanswick (2007), Energetic particle precipitation into the middle atmosphere triggered by a coronal mass ejection, J. Geophys. Res., 112, A12206, doi:10.1029/2007JA012395.
13. Dowden, R. L., and C. D. D. Adams (1993), Size and location of lightning-induced ionisation enhancements from measurement of VLF phase and amplitude perturbations on multiple antennas, J. Atmos. Terr. Phys., 55, 1335-1359, doi:10.1016/0021-9169(93)90102-5.
14. Erlandson, R. E., and A. J. Ukhorskiy (2001), Observations of electromagnetic ion cyclotron waves during geomagnetic storms: Wave occurrence and pitch angle scattering, J. Geophys. Res., 106(A3), 3883-3895.
15. Ferguson, J. A., and F. P. Snyder (1990), Computer programs for assessment of long wavelength radio communications, Tech. Doc. 1773, Natl. Ocean Syst. Cent., San Diego, Calif.
16. Friedel, R. H. W., A. Korth, and G. Kremser (1996), Substorm onsets observed by CRRES: Determination of energetic particle source regions, J. Geophys. Res., 101, 13,137-13,154.
17. Goldberg, R. A., and C. H. Jackman (1984), Nighttime auroral energy deposition in the middle atmosphere, J. Geophys. Res., 89(A7), 5581-5596.
18. Helliwell, R. A., J. P. Katsufrakis, and M. L. Trimpi (1973), Whistler-induced amplitude perturbations in VLF propagation, J. Geophys. Res., 78, 4679-4688.
19. Jelly, D., and N. Brice (1967), Changes in the Van Allen radiation associated with polar substorms, J. Geophys. Res., 72, 5919-5931.
20. Larsen, T. R., and G. R. Thomas (1974), Energy spectra measured during a relativistic electron precipitation event on 2 February 1969, J. Atmos. Terr. Phys., 36, 1613-1622, doi:10.1016/0021-9169(74)90199-8.
21. Lev-Tov, S. J., U. S. Inan, A. J. Smith, and M. A. Clilverd (1996), Characteristics of localized ionospheric disturbances inferred from VLF measurements at two closely spaced receivers, J. Geophys. Res., 101, 15,737-15,747.
22. Little, C. G., and H. Leinbach (1959), The riometer: A device for the continuous measurements of ionospheric absorption, Proc. IRE, 37, 315-320.
23. Loto'aniu, T. M., R. M. Thome, B. J. Fraser, and D. Summers (2006), Estimating relativistic electron pitch angle scattering rates using properties of the electromagnetic ion cyclotron wave spectrum, J. Geophys. Res., 111, A04220, doi:10.1029/2005JA011452.
24. Picone, J. M., A. E. Hedin, D. P. Drob, and A. C. Aikin (2002), NRLMSISE-00 empirical model of the atmosphere: Statistical comparisons and scientific issues, J. Geophys. Res., 107(A12), 1468, doi:10.1029/ 2002JA009430.
25. Rees, M. H. (1989), Physics and Chemistry of the Upper Atmosphere, Cambridge Univ. Press, New York.
26. Rodger, C. J., and M. A. Clilverd (2008), Magnetospheric physics: Hiss from the chorus, Nature, 452(7183), 41-42, doi:10.1038/452041a.
27. Rodger, C. J., O. A. Molchanov, and N. R. Thomson (1998), Relaxation of transient ionization in the lower ionosphere, J. Geophys. Res., 103(A4), 6969-6975.
28. Rodger, C. J., M. A. Clilverd, N. R. Thomson, R. J. Gamble, A. Seppälä, E. Turunen, N. P. Meredith, M. Parrot, J. A. Sauvaud, and J.-J. Berthelier (2007a), Radiation belt electron precipitation into the atmosphere: Recovery from a geomagnetic storm, J. Geophys. Res., 112, A11307, doi:10.1029/2007JA012383.
29. Rodger, C. J., C. F. Enell, E. Turunen, M. A. Clilverd, N. R. Thomson, and P. T. Verronen (2007b), Lightning-driven inner radiation belt energy deposition into the atmosphere: Implications for ionisation-levels and neutral chemistry, Ann. Geophys., 25, 1745-1757.
30. Rosenberg, T. J., L. J. Lanzerotti, D. K. Bailey, and J. D. Pierson (1972), Energy spectra in relativistic electron precipitation events, J. Atmos. Terr. Phys., 34, 1977-1990, doi:10.1016/0021-9169(72)90179-1.
31. Sandholt, P. E., et al. (2002), Multistage substorm expansion: Auroral dynamics in relation to plasma sheet particle injection, precipitation, and plasma convection, J Geophys. Res., 107(A11), 1342, doi:10.1029/ 2001JA900116.
32. Sarris, T. E., X. Li, N. Tsaggas, and N. Paschalidis (2002), Modeling energetic particle injections in dynamic pulse fields with varying propagation, speeds, J. Geophys. Res., 107(A3), 1033, doi:10.1029/2001JA900166.
33. Thomson, N. R. (1993), Experimental daytime VLF ionospheric parameters, J. Atmos. Terr. Phys., 55, 173-184, doi:10.1016/0021-9169(93) 90122-F.
34. Thomson, N. R., C. J. Rodger, and M. A. Clilverd (2005), Large solar flares and their ionospheric D region enhancements, J. Geophys. Res., 110, A06306, doi:10.1029/2005JA011008.
35. Thomson, N. R., M. A. Clilverd, and W. M. McRae (2007), Nighttime ionospheric D region parameters from VLF phase and amplitude, J. Geophys. Res., 112, A07304, doi:10.1029/2007JA012271.
36. Thorne, R. M., and T. R. Larsen (1976), An investigation of relativistic electron precipitation events and their association with magnetic substorm activity, J. Geophys. Res., 81, 5501-5506.
37. x generation in the middle and upper atmosphere during geomagnetic storms, J. Atmos. Sol. Terr. Phys., in press.
38. Verronen, P. T., T. Ulich, E. Turunen, and C. J. Rodger (2006), Sunset transition of negative charge in the D-region ionosphere during high-ionization conditions, Ann. Geophys., 24, 187-202.