84 citations · 348 across the 11 of their papers we have counts for
11 papers
Exploring Solar-Terrestrial Interactions via Multiple Observers (A White Paper for the Voyage 2050 long-term plan in the ESA Science Programme)
G. Branduardi-Raymont, M. Berthomier, Y. Bogdanova +24
This paper addresses the fundamental science question: "How does solar wind energy flow through the Earth's magnetosphere, how is it converted and distributed?". We need to underst…
How the IMF Induces a Local Component During Northward IMF and Characteristic Timescales
P. Tenfjord, N. Østgaard, S. Haaland +7
We use the Lyon-Fedder-Mobarry global magnetohydrodynamics model to study the effects of the interplanetary magnetic field (IMF) component on the coupling between…
Observations of Asymmetries in Ionospheric Return Flow During Different Levels of Geomagnetic Activity
J. P. Reistad, N. Østgaard, K. M. Laundal +7
It is known that the magnetic field of the Earth's closed magnetosphere can be highly displaced from the quiet-day configuration when interacting with the interplanetary magnetic f…
X-ray Emissions in a Multiscale Fluid Model of a Streamer Discharge
Nikolai G. Lehtinen, Nikolai Østgaard
We use a three-specie fluid model of electric discharge in air to simulate streamer evolution from the avalanche-to-streamer transition to the collision of opposite-polarity stream…
On the timing between terrestrial gamma ray flashes, radio atmospherics, and optical lightning emission
Thomas Gjesteland, Nikolai Østgaard, Phillip Bitzer +1
On 25 October 2012 the Reuven Ramaty High Energy Solar Spectroscope Imager (RHESSI) and the Tropical Rainfall Measuring Mission (TRMM) satellites passed over a thunderstorm on the…
Constraints to do realistic modeling of the electric field ahead of the tip of a lightning leader
Alexander Broberg Skeltved, Nikolai Østgaard, Andrew Mezentsev +2
Several computer models exist to explain the observation of terrestrial gamma-ray flashes (TGFs). Some of these models estimate the electric field ahead of lightning leaders and it…