- Open Access
Electron temperature variation associated with the auroral energy input during the DELTA campaign
Earth, Planets and Space volume 58, pages1139–1146(2006)
Japanese sounding rocket “S-310-35” was launched from Andøya Rocket Range in Norway on December 13, 2004 during Dynamics and Energetics of the Lower Thermosphere in Aurora (DELTA) campaign, in which the rocket-borne in-situ measurements and ground-based measurements were coordinated to conduct a comprehensive observation of the upper atmospheric response against the auroral energy input. The Fast Langmuir Probe (FLP) was installed on the sounding rocket to study thermal structure and energy balance of the plasma by measuring the electron temperature in the polar lower ionosphere. The FLP observations indicate that the electron temperatures were found to be remarkably high in an altitude range from 106 km to 114 km during the ascending phase of the rocket. The lowest part of this high temperature region might be affected by artificial electron beam which was generated by the N2 temperature instrument on the same rocket. On the other hand, a small increase of the electron temperature was observed at the altitude from 114 to 119 km in the descending phase. This is possibly the first time that both the temperature increase and density fluctuation that may be caused by the Farley-Buneman instability were detected by in-situ observation.
Abe et al., Dynamics and Energetics of the Lower Thermosphere in Aurora (DELTA) —Japanese sounding rocket campaign—, Earth Planets Space, 58, this issue, 1165–1171, 2006.
Banks, P. M., Observations of joule and particle heating in the auroral zone, J. Atmos. Terr. Phys., 39, 179–193, 1977.
Banks, P.M. and C. R. Chappell, A new model for the interaction of auroral electrons with the atmosphere: Spectral degradation, backscatter, optical emission, and ionization, J. Geophys. Res., 79, 1459–1470, 1974.
Brace, L. H., Langmuir probe measurements in the ionosphere, in Measurement Techniques in Space Plasmas: Particles, edited by R. F. Pfaff, J. E. Borovsky, and D. T. Young, pp. 23–35, American Geophysical Union Monograph 102, 1998.
Brekke, A., Joule heating and particle precipitation, Adv. Space Res., 2, 45–53, 1983.
Buneman, O., Excitation of field-aligned sound waves by electron streams, Phys. Rev. Lett., 10, 285–287, 1963.
Farley, D. T., A plasma instability resulting in field-aligned irregularities in the ionosphere, J. Geophys. Res., 68, 6083–6097, 1963.
Kurihara, J., T. Abe, K. I. Oyama, E. Griffin, M. Kosch, A. Aruliah, K. Kauristie, Y. Ogawa, S. Komada, and N. Iwagami, Observations of the lower thermospheric neutral temperature and density in the DELTA campaign, Earth Planets Space, 58, this issue, 1123–1130, 2006.
Lanchester, B. S., M. H. Rees, K. J. F. Sedgemore, J. R. Palmer, H. U. Frey, and K. U. Kaila, Ionospheric response to variable electric fields in small-scale auroral structures, Ann. Geophys., 16, 1343–1354, 1998.
Larsen, M. F., T. R. Marshall, I. S. Mikkelsen, B. A. Emery, A. Christensen, D. Kayser, J. Hecht, L. Lyons, and R. Walterscheid, Atmospheric Response in Aurora experiment: Observations of E and F region neutral winds in a region of postmidnight diffuse aurora, J. Geophys. Res., 100, 17299–17308, 1995.
Larsen, M. F., A. B. Christensen, and C. D. Odom, Observations of unstable atmospheric shear layers in the lower E region in the post-midnight auroral oval, Geophys. Res. Lett., 24, 1915–1918, 1997.
Nozawa, S., Y. Ogawa, A. Brekke, T. Tsuda, C. M. Hall, H. Miyaoka, J. Kurihara, T. Abe, and R. Fujii, EISCAT observational results during the DELTA campaign, Earth Planets Space, 58, this issue, 1183–1191, 2006.
Ogasawara, K., K. Asamura, T. Takashima, Y. Saito, and T. Mukai, Rocket observation of energetic electrons in the low-altitude auroral ionosphere during the DELTA campaign, Earth Planets Space, 58, this issue, 1155–1163, 2006.
Oyama, K. I. and K. Hirao, Application of a glass-sealed Langmuir probe to ionospheric study, Rev. Sci. Instruments, 47, 101–107, 1976.
Pfaff, R. F., M. C. Kelley, B. G. Fejer, E. Kudeki, C.W. Carlson, A. Pedersen, and B. Hausler, Electric field and plasma density measurements in the auroral electrojet, J. Geophys. Res., 89, 236–244, 1984.
Pfaff, R. F., J. Sahr, J. F. Providakes, W. E. Swartz, D. T. Farley, P. M. Kintner, I. Haggstrom, A. Hedberg, H. Opgenoorth, and G. Holmgren, The E-region Rocket/Radar Instability Study (ERRRIS)—Scientific objectives and campaign overview, J. Atmos. Terr. Phys., 54(6), 779–808, 1992.
Schlegel, K. and J. P. St.-Maurice, Anomalous heating of the polar E region by unstable plasma waves 1. Observations, J. Geophys. Res., 86, 1447–1452, 1981.
Schunk, R. W. and A. F. Nagy, Electron temperatures in the F region of the ionosphere—Theory and observations, Rev. Geophys., 16, 355–399, 1978.
St-Maurice, J. P., Electron heating by plasma waves in the high latitude E-region and related effects: Theory, Adv. Space Res., 10(6), 239–249, 1990.
St.-Maurice, J. P. and K. Schlegel, Estimates of plasma wave amplitudes in the turbulent high-latitude E region using electron temperature measurements, J. Geophys. Res., 87, 5197–5201, 1982.
St.-Maurice, J. P., K. Schlegel, and P. M. Banks, Anomalous heating of the polar E region by unstable plasma waves 2. Theory, J. Geophys. Res., 86, 1453–1462, 1981.
Syrjäsuo, M. T., T. I. Pulkkinen, R. J. Pellinen, P. Janhunen, K. Kauristie, A. Viljanen, H. J. Opgenoorth, P. Karlsson, S. Wallman, P. Eglitis, O. Amm, E. Nielsen, and C. Thomas, Observations of substorm electrodynamics using the MIRACLE network, Proceedings of the International Conference on Substorms-4, edited by S. Kokubun and Y. Kamide pp. 111–114, Astrophysics and Space Science Library, vol. 238, Terra Scientific Publishing Company, Kluwer Academic Publishers, 1998.
About this article
Cite this article
Abe, T., Oyama, K. & Kadohata, A. Electron temperature variation associated with the auroral energy input during the DELTA campaign. Earth Planet Sp 58, 1139–1146 (2006). https://doi.org/10.1186/BF03352003
- Electron temperature
- sounding rocket