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Rare Measurements Of A Sprite With Halo Event Driven By A Negative Lightning Discharge Over Argentina, Michael J. Taylor, T. Berkey, Pierre-Dominique Pautet, S. A. Cummer, N. Jaugey, J. N. Thomas, N. N. Solorzano, F. Sao Sabbas, R. H. Holzworth, O. Pinto, N. J. Schuch
Rare Measurements Of A Sprite With Halo Event Driven By A Negative Lightning Discharge Over Argentina, Michael J. Taylor, T. Berkey, Pierre-Dominique Pautet, S. A. Cummer, N. Jaugey, J. N. Thomas, N. N. Solorzano, F. Sao Sabbas, R. H. Holzworth, O. Pinto, N. J. Schuch
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As part of a collaborative campaign to investigate Transient Luminous Events (TLEs) over South America, coordinated optical, ELF/VLF, and lightning measurements were made of a mesoscale thunderstorm observed on February 22–23, 2006 over northern Argentina that produced 445 TLEs within a 6 hour period. Here, we report comprehensive measurements of one of these events, a sprite with halo that was unambiguously associated with a large negative cloud-to-ground (CG) lightning discharge with an impulsive vertical charge moment change (DMQv) of 03 C.km. This event was similar in its location, morphology and duration to other positive TLEs observed from this storm. However, …