GUVI Biblio

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

The European Ionosonde Service: nowcasting and forecasting ionospheric conditions over Europe for the ESA Space Situational Awareness services

The Earth’s ionosphere is a magnetoionic medium imbedded in a background neutral atmosphere, exhibiting very interesting refractive properties, including anisotropy, dispersion, and

Belehaki, Anna; Tsagouri, Ioanna; Kutiev, Ivan; Marinov, Pencho; Zolesi, Bruno; Pietrella, Marco; Themelis, Kostas; Elias, Panagiotis; Tziotziou, Kostas;

Published by:       Published on:

YEAR: 2015     DOI: "10.1051/swsc/2015026"

Polar cap arcs correlated with solar wind entry at the high latitude magnetosphere

Polar cap arcs are sun-aligned aurora structures occurring during northward turnings of the Interplanetary Magnetic Field (IMF) B_z component. At the same time, a new region of solar wind entry at the high latitude magnetosphere, tailward of the cusp region, was found recently at the periods of northward IMF B_z. We propose a study to see the relationship of these entry events with the transpolar arc formation. Data of Global Ultraviolet Imager (GUVI) onboard TIMED mission is examined to see the transp ...

Mailyan, B.; Shi, Q.; Gou, X.;

Published by:       Published on:

YEAR: 2014     DOI: 10.1109/URSIGASS.2014.6929926

aurora interplanetary; GUVI; magnetic fields; magnetosphere; solar wind; TIMED

Retrieval of thermospheric parameters from routine ionospheric observations: assessment of method\textquoterights performance at mid-latitudes daytime hours

A new method has been developed to retrieve neutral temperature T_n and composition [O], [N₂], [O₂] from electron density profiles in the daytime mid-latitude F₂-region under both quiet and disturbed conditions. A comparison with CHAMP neutral gas density observations in the vicinity of Millstone Hill Incoherent Scatter Radar (ISR) has shown that the retrieved neutral gas densities coincide with the observed ones within the announced accuracy of CHAMP observatio ...

Mikhailov, A.V.; Belehaki, A.; Perrone, L.; Zolesi, B.; Tsagouri, I.;

Published by: Journal of Space Weather and Space Climate      Published on: 06/2012

YEAR: 2012     DOI: 10.1051/swsc/2012002

ionosphere/atmosphere interactions; ionosphere: instruments; Ionospheric storms; techniques; thermospheric dynamics; topside ionosphere

Retrieval of thermospheric parameters from routine ionospheric observations: assessment of method’s performance at mid-latitudes daytime hours

Satellite observations similar to CHAMP or TIMED/GUVI provide valuable information on the thermosphere but they can be used only for scientific research rather than applications as a

Mikhailov, AV; Belehaki, A; Perrone, L; Zolesi, B; Tsagouri, I;

Published by: Journal of Space Weather and Space Climate      Published on:

YEAR: 2012     DOI: https://doi.org/10.1051/swsc/2012002