AE33C-0513
Long-delayed bright dancing sprite with large horizontal displacement from its parent flash
Wednesday, 16 December 2015
Poster Hall (Moscone South)
Jing Yang, IAP Insititute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China, Gaopeng Lu, Institute of Atmospheric Physics, CAS, Beijing, China, Li-Jou Lee, NCKU National Cheng Kung University, Tainan City, Taiwan and Guili Feng, Shandong Meteorological Bureau, Jinan, China
Abstract:
A long-delayed very bright dancing sprite with large horizontal displacement from its parent flash was observed. The dancing sprite lasted only 60 ms, and the morphology consisted of three fields with two slim dim sprite elements in the first two fields and a very bright large sprite element in the third field, different from other observations. The bright sprite displaced at least 38 km from its parent flash and occurred over comparatively higher cloud top region. The parent flash was positive, with only one return stroke (~24 kA) and obvious continuing current process, and the charge moment change of the stroke was small (roughly the threshold for sprite production). All of the sprite elements occurred during the continuing current period, and the bright sprite induced considerable current. The sprite dancing features may be linked to parent storm electrical structure, dynamics and microphysics, and the parent CG discharge process which was consistent with VHF observations.
