275 citations · 847 across the 18 of their papers we have counts for
6 papers · 1 filter
Magnetic Coordinate Systems
K. M. Laundal, A. D. Richmond
Geospace phenomena such as the aurora, plasma motion, ionospheric currents and associated magnetic field disturbances are highly organized by Earth's main magnetic field. This is d…
North-South Asymmetries in Earth's Magnetic Field: Effects on High-Latitude Geospace
K. M. Laundal, I. Cnossen, S. E. Milan +5
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…
Sunlight effects on the 3D polar current system determined from low Earth orbit measurements
Karl M. Laundal, Christopher C. Finlay, Nils Olsen
Interaction between the solar wind and the Earth's magnetosphere is associated with large-scale currents in the ionosphere at polar latitudes that flow along magnetic field lines (…
Birkeland current effects on high-latitude groundmagnetic field perturbations
K. M. Laundal, S. E. Haaland, N. Lehtinen +8
Magnetic perturbations on ground at high latitudes are directly associated only with the divergence-free component of the height-integrated horizontal ionospheric current, $\textbf…
What is the appropriate coordinate system for magnetometer data when analyzing ionospheric currents?
K. M. Laundal, J. W. Gjerloev
In this paper we investigate which coordinate representation is most appropriate when analyzing ground magnetometer data in terms of ionospheric currents, in particular the westwar…
How the IMF induces a component in the closed magnetosphere and how it leads to asymmetric currents and convection patterns in the two hemispheres
P. Tenfjord, N. Østgaard, K. Snekvik +4
We used the Lyon-Fedder-Mobarry global magnetohydrodynamics model to study the effects of the interplanetary magnetic field (IMF) IMF component on the coupling bet…