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Atmosphere 2018, 9(8), 295; https://doi.org/10.3390/atmos9080295

Lightning Characteristics and Electric Charge Structure of a Hail-Producing Thunderstorm on the Eastern Qinghai–Tibetan Plateau

1
State Key Laboratory of Severe Weather/Laboratory of Lightning Physics and Protection Engineering, Chinese Academy of Meteorological Sciences, Beijing 100081, China
2
College of Earth Science, University of Chinese Academy of Sciences, Beijing 100049, China
3
Institute of Atmospheric Sciences, Fudan University and Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200438, China
4
Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
*
Author to whom correspondence should be addressed.
Received: 9 April 2018 / Revised: 21 July 2018 / Accepted: 26 July 2018 / Published: 29 July 2018
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Abstract

An isolated hail-producing thunderstorm that occurred on 20 August 2012, from the Composite Observing Experiment for Lightning project carried out in the Da Tong Region of Qinghai Province, China, was studied. In most stages, the charge structure in the storm showed a positive tripole structure, which resulted in a low positive ground lightning rate for the whole event. In the thunderstorm process, 202 lightning flashes were detected. The peak lightning rate of lightning was 28 times/5 min. The average number of return strokes of negative ground flash was 2.4, and only one return stroke of positive ground lightning occurred. The duration of the in-cloud process prior to the first return stroke was relatively long. Dynamic transport had a considerable influence on the charge structure of the cloud. Before and after hail landing, the ground electric field of several stations showed a consistent trend of reversal. View Full-Text
Keywords: hail-producing orographic thunderstorm; lightning mapping; very high frequency (VHF) radiation; charge structure; total lightning rate hail-producing orographic thunderstorm; lightning mapping; very high frequency (VHF) radiation; charge structure; total lightning rate
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Fan, X.; Zhang, Y.; Zhang, G.; Zheng, D. Lightning Characteristics and Electric Charge Structure of a Hail-Producing Thunderstorm on the Eastern Qinghai–Tibetan Plateau. Atmosphere 2018, 9, 295.

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