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Interferometric imaging of Intensely Radiating Negative Leaders
Olaf Scholten, Brian M. Hare, Joe Dwyer +10
The common phenomenon of lightning still harbors many secrets and only recently a new propagation mode was observed for negative leaders. While propagating in this `Intensely Radia…
Time resolved 3Dinterferometric imaging of a section of a negative leader with LOFAR
Olaf Scholten, Brian Hare, Joe Dwyer +6
We have developed a three dimensional (3D) interferometric beamforming technique for imaging lightning flashes using Very-High Frequency (VHF) radio data recorded from several hund…
The initial stage of cloud lightning imaged in high-resolution
O. Scholten, B. M. Hare, J. Dwyer +21
With LOFAR we have been able to image the development of lightning flashes with meter-scale accuracy and unprecedented detail. We discuss the primary steps behind our most recent l…
Radio emission from negative lightning leader steps reveals inner meter-scale structure
B. M. Hare, O. Scholten, J. Dwyer +19
We use the Low Frequency ARray (LOFAR) to probe the dynamics of the stepping process of negatively-charged plasma channels (negative leaders) in a lightning discharge. We observe t…
Influence of Atmospheric Electric Fields on the Radio Emission from Extensive Air Showers
T. N. G. Trinh, O. Scholten, S. Buitink +15
The atmospheric electric fields in thunderclouds have been shown to significantly modify the intensity and polarization patterns of the radio footprint of cosmic-ray-induced extens…