GUVI Biblio





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Found 13 entries in the Bibliography.


Showing entries from 1 through 13


2021

The Northward IMF Magnetosphere

The manner in which the Earth s magnetosphere responds to the solar wind is highly dependent upon the orientation of the interplanetary magnetic field (IMF), particularly the north–south (B Z ) component. As most auroral and geomagnetic activity occurs when the IMF is southward (or weakly northward, but dominated by the dawn–dusk [B Y ] component), it is perhaps unsurprising that these conditions have received the most attention. However, when the IMF is more strongly northward (B Z \textgreater 0 and B Z \textgreater \t ...

Fear, Robert;

Published by:       Published on:

YEAR: 2021     DOI: 10.1002/9781119815624.ch19

auroral response; Earth s magnetosphere; geomagnetic activity; interplanetary magnetic field; magnetospheric dynamics; solar wind-magnetosphere coupling

2020

Aurora in the Polar Cap: A Review

This paper reviews our current understanding of auroral features that appear poleward of the main auroral oval within the polar cap, especially those that are known as Sun-aligned arcs, transpolar arcs, or theta auroras. They tend to appear predominantly during periods of quiet geomagnetic activity or northwards directed interplanetary magnetic field (IMF). We also introduce polar rain aurora which has been considered as a phenomenon on open field lines. We describe the morphology of such auroras, their ...

Hosokawa, Keisuke; Kullen, Anita; Milan, Steve; Reidy, Jade; Zou, Ying; Frey, Harald; Maggiolo, Romain; Fear, Robert;

Published by: Space Science Reviews      Published on: 02/2020

YEAR: 2020     DOI: 10.1007/s11214-020-0637-3

Dataset for Multi-scale observations of two polar cap arcs occuring on different magnetic field topologies

Reidy, Jade; Fear, Robert; Whiter, Daniel; Lanchester, Betty; Kavanagh, AJ; Price, David; Chadney, Joshua; Zhang, Yongliang; Paxton, Larry; , others;

Published by:       Published on:

YEAR: 2020     DOI:

Multiscale observation of two polar cap arcs occurring on different magnetic field topologies

Reidy, JA; Fear, RC; Whiter, DK; Lanchester, BS; Kavanagh, AJ; Price, David; Chadney, Joshua; Zhang, Y; Paxton, LJ;

Published by: Journal of Geophysical Research: Space Physics      Published on:

YEAR: 2020     DOI:

2018

Interhemispheric survey of polar cap aurora

Reidy, Jade; Fear, RC; Whiter, DK; Lanchester, B; Kavanagh, Andrew; Milan, SE; Carter, JA; Paxton, LJ; Zhang, Y;

Published by: Journal of Geophysical Research: Space Physics      Published on:

YEAR: 2018     DOI:

2017

Multi-instrument observation of simultaneous polar cap auroras on open and closed magnetic field lines

Reidy, JA; Fear, RC; Whiter, DK; Lanchester, BS; Kavanagh, AJ; Paxton, LJ; Zhang, Y; Lester, Mark;

Published by: Journal of Geophysical Research: Space Physics      Published on:

YEAR: 2017     DOI:

Transpolar arcs observed simultaneously in both hemispheres

Carter, Jennifer; Milan, Stephen; Fear, RC; Walach, M-T; Harrison, ZA; Paxton, LJ; Hubert, Beno\^\it;

Published by: Journal of Geophysical Research: Space Physics      Published on:

YEAR: 2017     DOI:

2016

Multi-instrument observation of two different types of polar cap aurora occurring simultaneously during northward IMF

Reidy, Jade; Fear, Robert; Lanchester, Betty; Whiter, Daniel; Kavanagh, Andrew; Paxton, Larry; Zhang, Yongliang;

Published by:       Published on:

YEAR: 2016     DOI:

2015

Transpolar arc observation after solar wind entry into the high-latitude magnetosphere

Recently, Cluster observations have revealed the presence of new regions of solar wind plasma entry at the high-latitude magnetospheric lobes tailward of the cusp region, mostly during periods of northward interplanetary magnetic field. In this study, observations from the Global Ultraviolet Imager (GUVI) experiment on board the TIMED spacecraft and Wideband Imaging Camera imager on board the IMAGE satellite are used to investigate a possible link between solar wind entry and the formation of transpolar arcs in the polar ...

Mailyan, B.; Shi, Q.; Kullen, A.; Maggiolo, R.; Zhang, Y.; Fear, R.; Zong, Q.-G.; Fu, S; Gou, X.; Cao, X.; Yao, Z.; Sun, W.; Wei, Y.; Pu, Z;

Published by: Journal of Geophysical Research: Space Physics      Published on: 05/2015

YEAR: 2015     DOI: 10.1002/2014JA020912

magnetosphere-ionosphere coupling; transpolar arcs; in situ measurements

Solar illumination control of ionospheric outflow above polar cap arcs

We measure the flux density, composition, and energy of outflowing ions above the polar cap, accelerated by quasi-static electric fields parallel to the magnetic field and associated with polar cap arcs, using Cluster. Mapping the spacecraft position to its ionospheric foot point, we analyze the dependence of these parameters on the solar zenith angle (SZA). We find a clear transition at SZA between \~94\textdegree and \~107\textdegree, with the O+ flux higher above the sunlit ionosphere. This dependence on the ...

Maes, L.; Maggiolo, R.; De Keyser, J.; Dandouras, I.; Fear, R.; Fontaine, D.; Haaland, S.;

Published by: Geophysical Research Letters      Published on: 03/2015

YEAR: 2015     DOI: 10.1002/2014GL062972

cold ion outflow; ion upflow; polar cap arc; polar ionosphere; polar wind; solar illumination

2014

Connection between high-latitude arcs and the low-latitude boundary layer during periods of northward IMF

Maggiolo, Romain; Fontaine, Dominique; Hosokawa, Keisuke; Maes, Lukas; Zhang, Yongliang; Fear, Robert; Cumnock, Judy; Kozlovsky, Alexander; Kullen, Anita; Milan, Steve; , others;

Published by:       Published on:

YEAR: 2014     DOI:

Ground and satellite observations of multiple sun-aligned auroral arcs on the duskside

Hosokawa, Keisuke; Maggiolo, Romain; Zhang, Yongliang; Fear, Robert; Fontaine, Dominique; Cumnock, Judy; Kullen, Anita; Milan, Stephen; Kozlovsky, Alexander; Echim, Marius; , others;

Published by:       Published on:

YEAR: 2014     DOI:

Multi-instrument observations of multiple auroral arcs in the duskside polar cap region

Hosokawa, Keisuke; Maggiolo, Romain; Zhang, Yongliang; Fear, Rob; Fontaine, Dominique; Cumnock, Judy; Kullen, Anita; Milan, Steve; Kozlovsky, Alexander; Echim, Marius;

Published by:       Published on:

YEAR: 2014     DOI:



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