A. Luque, D. Li, I. Bjørge-Engeland, N. G. Lehtinen, M. Marisaldi, N. Østgaard
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引用次数: 0
Abstract
Lightning strokes emit electromagnetic pulses that interact with the lower ionosphere. One manifestation of this interaction are elves: Ring-shaped light emissions from altitudes around 85 km above ground produced by active thunderstorms. Perturbations to the conductivity at those altitudes relax with time-scales longer than 10 min and therefore one strong pulse may affect the features of subsequent pulses. Here we develop a simplified model to investigate this possibility. We apply this model to thunderstorms with a copious production of high-peak-current strokes, finding changes in the altitude profile of light emissions for elves at different stages of the thunderstorm evolution.
期刊介绍：
JGR: Atmospheres publishes articles that advance and improve understanding of atmospheric properties and processes, including the interaction of the atmosphere with other components of the Earth system.
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