Search Publications
North-South Asymmetries in Earth's Magnetic Field. Effects on High-Latitude Geospace
Reistad, J. P.; Laundal, K. M.; Milan, S. E. +5 more
The solar-wind magnetosphere interaction primarily occurs at altitudes where the dipole component of Earth's magnetic field is dominating. The disturbances that are created in this interaction propagate along magnetic field lines and interact with the ionosphere-thermosphere system. At ionospheric altitudes, the Earth's field deviates significantl…
Achievements and Challenges in the Science of Space Weather
Veronig, Astrid; Balogh, André; Koskinen, Hannu E. J. +3 more
In June 2016 a group of 40 space weather scientists attended the workshop on Scientific Foundations of Space Weather at the International Space Science Institute in Bern. In this lead article to the volume based on the talks and discussions during the workshop we review some of main past achievements in the field and outline some of the challenges…
Near-Earth Magnetic Field Effects of Large-Scale Magnetospheric Currents
Le, Guan; Lühr, Hermann; Xiong, Chao +1 more
Magnetospheric currents play an important role in the electrodynamics of near-Earth space. This has been the topic of many space science studies. Here we focus on the magnetic fields they cause close to Earth. Their contribution to the geomagnetic field is the second largest after the core field. Significant progress in interpreting the magnetic f…
Space Weather Effects Produced by the Ring Current Particles
Jaynes, Allison; Ganushkina, Natalia; Liemohn, Michael
One of the definitions of space weather describes it as the time-varying space environment that may be hazardous to technological systems in space and/or on the ground and/or endanger human health or life. The ring current has its contributions to space weather effects, both in terms of particles, ions and electrons, which constitute it, and magne…
The Scientific Foundations of Forecasting Magnetospheric Space Weather
Eastwood, J. P.; Nakamura, R.; Turc, L. +2 more
The magnetosphere is the lens through which solar space weather phenomena are focused and directed towards the Earth. In particular, the non-linear interaction of the solar wind with the Earth's magnetic field leads to the formation of highly inhomogenous electrical currents in the ionosphere which can ultimately result in damage to and problems w…
Key Ground-Based and Space-Based Assets to Disentangle Magnetic Field Sources in the Earth's Environment
Milan, S. E.; Masson, A.; Matzka, J. +1 more
The magnetic field measured on the ground or in space is the addition of several sources: from flows within the Earth's core to electric currents in distant regions of the magnetosphere. Properly separating and characterizing these sources requires appropriate observations, both ground-based and space-based. In the present paper, we review the exi…