Journal
GEOPHYSICAL RESEARCH LETTERS
Volume 49, Issue 7, Pages -Publisher
AMER GEOPHYSICAL UNION
DOI: 10.1029/2021GL097367
Keywords
lightning; radio interferometer; imaging; streamers; corona bursts; VHF
Categories
Funding
- AFOSR [FA9550-18-1-0358, FA9550-21-1-0366]
- DARPA [HR00112120003]
Ask authors/readers for more resources
Recent observations from LOFAR show that multiple, spatially distributed corona bursts can occur in lightning processes with a timescale of 10 microseconds. This poses a challenge for radio interferometers, requiring simulation studies to understand the implications.
Recent observations from LOFAR indicate that multiple, spatially distributed corona bursts can occur in lightning processes with a timescale of 10 microseconds. The close proximity of the corona bursts in space and time poses a great observation challenge for short-baseline (typically <= 100 m) radio interferometers. This paper reports simulations to show the interferometry results that would be obtained with such an interferometer. In particular, spatially-separated corona bursts at fixed locations may be seen as a fast (>10(7) m/s) propagating source with large power variation if the resolution of the instrument is greater than the spatial separation of the bursts. The implications and suggestions for lightning interferometry studies are discussed in the paper.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available