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Found 6 entries in the Bibliography.
Showing entries from 1 through 6
Large-Scale Dune Aurora Event Investigation Combining Citizen Scientists Photographs and Spacecraft Observations
Recently, citizen scientist photographs led to the discovery of a new auroral form called “the dune aurora” which exhibits parallel stripes of brighter emission in the green diffuse aurora at about 100 km altitude. This discovery raised several questions, such as (i) whether the dunes are associated with particle precipitation, (ii) whether their structure arises from spatial inhomogeneities in the precipitating fluxes or in the underlying neutral atmosphere, and (iii) whether they are the auroral manifestation of an atm ...
Grandin, Maxime; Palmroth, Minna; Whipps, Graeme; Kalliokoski, Milla; Ferrier, Mark; Paxton, Larry; Mlynczak, Martin; Hilska, Jukka; Holmseth, Knut; Vinorum, Kjetil; , others;
Published by: AGU Advances Published on:
YEAR: 2021   DOI: https://doi.org/10.1029/2020AV000338
Hybrid-Vlasov simulation of auroral proton precipitation in the cusps: Comparison of northward and southward interplanetary magnetic field driving
Particle precipitation is a central aspect of space weather, as it strongly couples the magnetosphere and the ionosphere and can be responsible for radio signal disruption at high
Grandin, Maxime; Turc, Lucile; Battarbee, Markus; Ganse, Urs; Johlander, Andreas; Pfau-Kempf, Yann; Dubart, Maxime; Palmroth, Minna;
Published by: Journal of space weather and space climate Published on:
YEAR: 2020   DOI: 10.1051/swsc/2020053
Hybrid-Vlasov modelling of nightside auroral proton precipitation during southward interplanetary magnetic field conditions
Particle precipitation plays a key role in the coupling of the terrestrial magnetosphere and ionosphere by modifying the upper atmospheric conductivity and chemistry, driving field-aligned currents, and producing aurora. Yet quantitative observations of precipitating fluxes are limited, since ground-based instruments can only provide indirect measurements of precipitation, while particle telescopes aboard spacecraft merely enable point-like in situ observations with an inherently coarse time resolution above a given location ...
Grandin, Maxime; Battarbee, Markus; Osmane, Adnane; Ganse, Urs; Pfau-Kempf, Yann; Turc, Lucile; Brito, Thiago; Koskela, Tuomas; Dubart, Maxime; Palmroth, Minna;
Published by: Published on:
YEAR: 2019   DOI: 10.5194/angeo-37-791-2019
New constraints on Ganymede s hydrogen corona: Analysis of Lyman-$\alpha$ emissions observed by HST/STIS between 1998 and 2014
Far-ultraviolet observations of Ganymede s atmospheric emissions were obtained with the Space Telescope Imaging Spectrograph (STIS) onboard of the Hubble Space Telescope (HST
Alday, Juan; Roth, Lorenz; Ivchenko, Nickolay; Retherford, Kurt; Becker, Tracy; Molyneux, Philippa; Saur, Joachim;
Published by: Planetary and Space Science Published on:
YEAR: 2017   DOI: 10.1016/j.pss.2017.10.006
Comparison of penetration electric fields created by the solar wind with Jicamarca data using SWAGE
SWAGE (Solar Wind Acting on the Geophysical Environment) calculates the global ionospheric electric field generated by high-latitude electrodynamics drivers determined from the time-shifted solar wind data measured at L1 by joining the Hill-Siscoe polar cap potential model with the N-C ionospheric potential solver. Of particular interest are the conditions under which the eastward equatorial penetration electric field near twilight contributes to the pre-reversal enhancement (PRE). In the present model, it is found that a ...
Rothwell, P.; Jasperse, J.; Grossbard, N.;
Published by: Journal of Geophysical Research Published on: 09/2012
YEAR: 2012   DOI: 10.1029/2012JA017684
The characteristics of field-aligned currents associated with equatorial plasma bubbles as observed by the CHAMP satellite
Park, J.; Lühr, H.; Stolle, C.; Rother, M.; Min, K.; Michaelis, I.;
Published by: Annales Geophysicae Published on: Jan-01-2009
YEAR: 2009   DOI: 10.5194/angeo-27-2685-2009