Results 21 to 30 of about 4,774 (237)

On the Relation Between Jupiter's Aurora and the Dawnside Current Sheet

Geophysical Research Letters, 2023
Jupiter's auroral emission is a spectacular phenomenon that provides insight into energy release processes related to the coupling of its magnetosphere and ionosphere. This energy release is influenced by solar wind conditions.
Y. Xu, Z. H. Yao, B. Zhang, P. A. Delamere, L. C. Ray, W. R. Dunn, S. V. Badman, E. H. Feng, Z. Q. Zheng, S. J. Bolton, D. Grodent, B. Bonfond, Y. Wei   +12 more
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Rapid‐run ionosonde observations of traveling ionospheric disturbances in the auroral ionosphere [PDF]

Journal of Geophysical Research: Space Physics, 2013
AbstractSince 2007, the Sodankylä Geophysical Observatory routinely performs vertical ionosphere soundings once per minute, using a frequency‐modulated continuous‐wave chirp at the rate of 500 kHz/s from 500 kHz to 16 MHz. We used these data to study traveling ionospheric disturbances (TIDs) during 10–16 local time.
Kozlovski Alexandre, Ulich Thomas, Turunen Tauno   +2 more
openaire   +1 more source

Effects of energetic electrons on the electrodynamics in the ionosphere [PDF]

, 2004
International audienceFrom the observations by the PIXIE and UVI cameras on board the Polar satellite, we derive global maps of the precipitating electron energy spectra from less than 1keV to 100keV.
Rosenberg, T. J., D. L. Detrick, Aksnes, A., Detrick, D.L., Rosenberg, T.J., A. Aksnes, J. Stadsnes, N. Østgaard, G. A. Germany, Østgaard, N., T. J. Rosenberg, Lu, G., Schulz, M, M. Schulz, Detrick, D. L., Stadsnes, J., Germany, G. A., R. R. Vondrak, Vondrak, R.R., Vondrak, R. R., Germany, G.A., G. Lu   +21 more
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Transpolar aurora: time evolution, associated convection patterns, and a possible cause [PDF]

Annales Geophysicae, 2005
We present two event studies illustrating the detailed relationships between plasma convection, field-aligned currents, and polar auroral emissions, as well as illustrating the influence of the Interplanetary Magnetic Field's y-component on theta ...
L. G. Blomberg, J. A. Cumnock, J. A. Cumnock, I. I. Alexeev, E. S. Belenkaya, S. Yu. Bobrovnikov, V. V. Kalegaev   +6 more
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Midnight sector observations of auroral omega bands [PDF]

, 2011
We present observations of auroral omega bands on 28 September 2009. Although generally associated with the substorm recovery phase and typically observed in the morning sector, the features presented here occurred just after expansion phase onset and ...
Fear, R.C., Kadokura, A., Glassmeier, K.H., G. Björnsson, Woodfield, E.E., J. P. McFadden, V. Angelopoulos, Björnsson, G., K. Hosokawa, Fazakerley, A. N., Khotyaintsev, Y., A. Grocott, K. H. Glassmeier, E. E. Woodfield, Donovan, E., R. C. Fear, Woodfield, E. E., Wild, J.A., Glassmeier, K. H., Fazakerley, A.N., Andre, M., André, Mats,, Lester, M., Y. Khotyaintsev, Lucek, E., Wild, J. A., J. A. Wild, Grocott, A., M. Lester, C. Carlson, McFadden, J. P., A. N. Fazakerley, M. Andre, Angelopoulos, V., E. Donovan, A. Kadokura, Khotyaintsev, Yuri,, McFadden, J.P., Fear, R. C., Carlson, C., E. Lucek, Hosokawa, K.   +41 more
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Rocket-borne investigation of auroral patches in the evening sector during substorm recovery [PDF]

Annales Geophysicae, 2003
On 11 February 1997 at 08:36 UT after a substorm onset the Auroral Turbulence 2 sounding rocket was launched from Poker Flat Research Range, Alaska into a moderately active auroral region.
M. A. Danielides, A. Kozlovsky, A. Kozlovsky   +2 more
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An extended TRANSCAR model including ionospheric convection: Simulation of EISCAT observations using input from AMIE [PDF]

, 2005
International audienceThe TRANSCAR ionospheric model was extended to account for the convection of the magnetic field lines in the auroral and polar ionosphere.
Lathuillere, C., Fontanari, J., J. Fontanari, C. Lathuillère, B. Emery, Alcaydé, D., Blelly, P.-L., Emery, B., P.-L. Blelly, D. Alcaydé, J. Lilensten, Lilensten, J.   +11 more
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Ion-neutral coupling in the high-latitude F-layer from incoherent scatter and Fabry-Perot interferometer measurements [PDF]

Annales Geophysicae, 2000
Since the auroral ionosphere provides an important energy sink for the magnetosphere, ionosphere-thermosphere coupling must be investigated when considering the energy budget of the ionosphere-magnetosphere coupling. We present the first Scandinavian
K. Cierpka, M. J. Kosch, M. Rietveld, K. Schlegel, T. Hagfors   +4 more
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Geophysicochemical model of an ionospheric auroral gyroscope [PDF]

Earth and Space Science, 2016
AbstractThis study presents a geophysicochemical model of an ionospheric auroral gyroscope. The gyroscopic effect occurs due to the electromagnetic interaction in Earth's polar regions between two types of vertical cavity auroras: the herpolhodic cone (proton cavity aurora), operating in the cusp polar region, and two polhodic cones (an electronic cone
Andreea I. Serban, Ovidiu I. Geicu, Florea Serban   +2 more
openaire   +1 more source

Cassini observations of ion and electron beams at Saturn and their relationship to infrared auroral arcs [PDF]

, 2012
[1] We present Cassini Visual and Infrared Mapping Spectrometer observations of infrared auroral emissions from the noon sector of Saturn's ionosphere revealing multiple intense auroral arcs separated by dark regions poleward of the main oval.
T. Kimura (7025969), Badman, S. V., Kimura, T., Tao, C., Coates, AJ, S. V. Badman, Achilleos, Nick, C. S. Arridge, Melin, H, K.H. Baines (7600877), T. Stallard, Kasahara, S., N. Achilleos, Arridge, C. S., M.K. Dougherty (7598654), Bunce, EJ, Badman, S.V., T.S. Stallard (7600244), H. Melin, C.S. Arridge (7598645), Mitchell, D. G., G. Hospodarsky (7600883), Baines, KH, S.V. Badman (7600679), R.H. Brown (7600880), Badman, SV, Arridge, CS, S. Kasahara, Dougherty, M. K., Brown, RH, Cowley, S. W. H., Dougherty, M.K., Bunce, E. J., K. H. Baines, Arridge, Chris S., S. Kasahara (7600886), Fujimoto, M, Achilleos, N., Baines, K. H., C. Tao, S. W. H. Cowley, Mitchell, DG, H. Melin (7600241), R. H. Brown, D.G. Mitchell (7600691), Achilleos, N, M. Fujimoto (3243669), Hospodarsky, G, G. Hospodarsky, Bunce, E.J., Dougherty, MK, Hospodarsky, G., A. J. Coates, Kasahara, S, Stallard, T, Mitchell, D.G., M. K. Dougherty, Kimura, T, Brown, R.H., E.J. Bunce (7600682), Stallard, T., N. Achilleos (7600235), C. Tao (7600889), Coates, Andrew J., Fujimoto, M., Coates, A. J., Cowley, S.W.H., Tao, C, S.W.H. Cowley (7591226), Melin, H., Brown, R. H., T. Kimura, E. J. Bunce, A.J. Coates (7598648), Baines, K.H., Cowley, SWH, M. Fujimoto, D. G. Mitchell   +77 more
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