Results 61 to 70 of about 4,774 (237)

Alfvén wave boundary condition for responsive magnetosphere-ionosphere coupling

, 2014
A.J.B.R. thanks STFC for present support through consolidated grant ST/K000993/1 and gratefully acknowledges a Royal Commission for the Exhibition of 1851 Research Fellowship that also assisted this work.The solution of electric fields and currents in a ...
Wright, A.N., Wright, Andrew N., Andrew N. Wright, Russell, A.J.B., Russell, Alexander J.B., Alexander J. B. Russell   +5 more
core   +1 more source

A decade of the Super Dual Auroral Radar Network (SuperDARN): scientific achievements, new techniques and future directions [PDF]

, 2007
The Super Dual Auroral Radar Network (SuperDARN) has been operating as an international co-operative organisation for over 10 years. The network has now grown so that the fields of view of its 18 radars cover the majority of the northern and southern ...
M. P. Freeman, Sofko, G.J., P. L. Dyson, Ruohoniemi, J. M., Kikuchi, T., J. M. Ruohoniemi, Chisham, G., Walker, A.D.M., Dyson, P. L., R. A. Greenwald, G. J. Sofko, Milan, S.E., T. K. Yeoman, M. Pinnock, J.-P. Villain, Freeman, M. P., A. Grocott, Rash, J.P.S., Sato, N., Yeoman, T. K., Freeman, M.P., Bristow, W.A., Milan, S. E., K. A. McWilliams, N. Sato, Lester, M., Villain, J.-P., Greenwald, R.A., G. Chisham, Bristow, W. A., A. D. M. Walker, Grocott, A., Mcwilliams, K. A., M. Lester, Pinnock, M., Dyson, P.L., Walker, A. D. M., McWilliams, K.A., T. Kikuchi, S. E. Milan, Ruohoniemi, J.M., Greenwald, R. A., Sofko, G. J., J. P. S. Rash, Rash, J. P. S., W. A. Bristow, Yeoman, T.K.   +46 more
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Auroral pulsations and accompanying VLF emissions [PDF]

Annales Geophysicae, 1999
Results of simultaneous TV observations of pulsating auroral patches and ELF-VLF-emissions in the morning sector carried out in Sodankylä (Finland) on February 15, 1991 are presented.
V. R. Tagirov, V. S. Ismagilov, E. E. Titova, V. A. Arinin, A. M. Perlikov, J. Manninen, T. Turunen, K. Kaila   +7 more
doaj   +1 more source

Auroral turbulence of the ionospheric convection

Vestnik MGTU, 2016
The formation of the two-dimensional auroral structures in the cold ionospheric-magnetospheric plasma under convection has been considered. The convection inhomogeneity leads to appearance of the currents across and along the magnetic field lines. The field-aligned currents flowing from the ionosphere into the magnetosphere create positive feedback ...
openaire   +2 more sources

Representation of the auroral and polar ionosphere in the International Reference Ionosphere (IRI) [PDF]

Advances in Space Research, 2013
This issue of Advances in Space Research presents a selection of papers that document the progress in developing and improving the International Reference Ionosphere (IRI), a widely used standard for the parameters that describe the Earths ionosphere.
Dieter Bilitza, Bodo Reinisch
openaire   +1 more source

Local Evolution of a Prenoon Drainage Plume

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Plasmaspheric drainage plumes are typically observed in the postnoon sector during geomagnetic storms, but their local evolution in the prenoon sector remains poorly understood. Here, we report in situ observations from the Van Allen Probe, revealing multiple localized enhancements in cold electron density near apogee in the prenoon sector ...
Suk‐Bin Kang, Mei‐Ching Fok, Cristian Ferradas, Alex Glocer, Megha Pandya, J. D. Huba   +5 more
wiley   +1 more source

The statistical dependence of auroral absorption on geomagnetic and solar wind parameters [PDF]

, 2004
Data from the Imaging Riometer for Ionospheric Studies (IRIS) at Kilpisjärvi, Finland, have been compiled to form statistics of auroral absorption based on seven years of observations.
A. Senior, I. W. McCrea, Honary, F., Senior, A., S. R. Marple, Kavanagh, A. J., Kosch, M. J., A. J. Kavanagh, M. J. Kosch, Marple, S. R., McCrea, I. W., F. Honary, E. E. Woodfield, Woodfield, E. E.   +13 more
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Discrete aurora and the nightside ionosphere of Mars: an EMM–MEX conjunction of FUV imaging, ionospheric radar sounding, and suprathermal electron measurements

Earth, Planets and Space
Since 2021, a new surge in discrete aurora detections at Mars has been observed by the Emirates Mars Ultraviolet Spectrometer (EMUS) onboard the Emirates Mars Mission (EMM) Hope Orbiter as EMUS started to regularly obtain synoptic auroral images with a ...
Yuki Harada, Yuka Fujiwara, Robert J. Lillis, Justin Deighan, Hiromu Nakagawa, Beatriz Sánchez-Cano, Mark Lester, Yoshifumi Futaana, Mats Holmström, Rudy A. Frahm   +9 more
doaj   +1 more source

Impact of Magnetosphere Forcing and Model Resolution on Joule Heating Estimates in WACCM‐X During the 24 August 2005 Storm

Earth and Space Science, Volume 13, Issue 7, July 2026.
Abstract We investigate the high‐latitude Joule heating in a recently developed high‐resolution configuration of the WACCM‐X whole‐atmosphere model coupled to the MAGE model. Model resolution and geomagnetic forcing effects during the severe (Kp>8) $(Kp > 8)$ geomagnetic storm on 24 August 2005 are analyzed, distinguishing storm peak and recovery ...
Florian Günzkofer, Hanli Liu, Kevin Pham, Huixin Liu, Gunter Stober, Joseph M. McInerney, David R. Themens, Claudia Borries   +7 more
wiley   +1 more source

Small and meso-scale properties of a substorm onset auroral arc

, 2010
International audienceWe present small and meso-scale properties of a substorm onset arc observed simultaneously by the Reimei and THEMIS satellites together with ground-based observations by the THEMIS GBO system.
Whiter, D., J. Weygand, Frey, H.U., H. U. Frey, N. Østgaard, B. Lanchester, Sakanoi, T., Seran, Elena, S. Fu, Frey, H., Ostgaard, N., Asamura, K., Weygand, J., T. Karlsson, Karlsson, T., Amm, O., Chaston, C., Haerendel, G., Seran, E., G. Haerendel, C. C. Chaston, Chaston, C.C., L. Juusola, Nakamura, R., Fu, S., O. Amm, Østgaard, N., Chaston, C. C., M. Hirahara, Lanchester, B., D. Whiter, Juusola, L., T. Sakanoi, E. Séran, Frey, H. U., K. Asamura, Hirahara, M., R. Nakamura, Karlsson, Tomas,   +38 more
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