173 citations · 514 across the 10 of their papers we have counts for
3 papers · 1 filter
Gamma Ray Glow Observations at 20-km Altitude
N. Østgaard, H. J. Christian, J. E. Grove +12
In the spring of 2017 an ER-2 aircraft campaign was undertaken over continental United States to observe energetic radiation from thunderstorms and lightning. The payload consisted…
Radio emissions from double RHESSI TGFs
Andrew Mezentsev, Nikolai Østgaard, Thomas Gjesteland +5
A detailed analysis of Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) terrestrial gamma ray flashes (TGFs) is performed in association with World Wide Lightning Loca…
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…