期刊
EARTH AND PLANETARY PHYSICS
卷 3, 期 2, 页码 111-125出版社
SCIENCE PRESS
DOI: 10.26464/epp2019015
关键词
sprite; triangulation; peak current; hybrid location
资金
- National Key Basic Research and Development Program [2017YFC1501501]
- National Natural Science Foundation of China [41574179, 41875006]
- National Natural Science Foundation for Excellent Youth of China [41622501]
- The Hundred Talents Program of Chinese Academy of Sciences [2013068]
- NOAA Office of Global Programs
- NASA via the Tropical Rainfall Measuring Mission (TRMM)
- NASA's HQ Earth Science Data Systems (ESDS) Program
The triangulation of red sprites was obtained, based on concurrent observations over a mesoscale convective system (MCS) in North China from two stations separated by about 450 km. In addition, broadband sferics from the sprite-producing lightning were measured at five ground stations, making it possible to locate and identify the individual causative lightning discharges for different elements in this dancing sprite event. The results of our analyses indicate that the sprites were produced above the trailing stratiform region of the MCS, and their parent strokes were located mainly in the peripheral area of the stratiform. The lateral offset between sprites and causative strokes ranges from a few km to more than 50 km. In a particularly bright sprite, with a distinct halo feature and streamers descending down to an altitude of approximately 48 km, the sprite current signal identified in the electric sferic, measured at a range of about 1,110 km, peaked at approximately 1 ms after the return stroke.
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