Assessment of Unusual Gigantic Jets observed during the Monsoon season: First observations from Indian Subcontinent

Rajesh Singh, Ajeet K. Maurya, Olivier Chanrion, Torsten Neubert, Steven A. Cummer, Janusz Mlynarczyk, Morris B. Cohen, Devendraa Siingh, Sushil Kumar

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Abstract

Gigantic Jets are electric discharges from thunderstorm cloud tops to the bottom of ionosphere at similar to 90 km altitude and electrically connect the troposphere and lower ionosphere. Since their first report in 2002, sporadic observations have been reported from ground and space based observations. Here we report first observations of Gigantic Jets in Indian subcontinent over the Indo-Gangetic plains during the monsoon season. Two storms each produced two jets with characteristics not documented so far. Jets propagated similar to 37 km up remarkably in similar to 5 ms with velocity of similar to 7.4 x 10(6) ms(-1) and disappeared within similar to 40-80 ms, which is faster compared to jets reported earlier. The electromagnetic signatures show that they are of negative polarity, transporting net negative charge of similar to 17-23 C to the lower ionosphere. One jet had an unusual form observed for the first time, which emerged from the leading edge of a slowly drifting complex convective cloud close to the highest regions at similar to 17 km altitude. A horizontal displacement of similar to 10 km developed at similar to 50 km altitude before connecting to the lower ionosphere. Modeling of these Gigantic jets suggests that Gigantic Jets may bend when initiated at the edge of clouds with misaligned vertical charge distribution.
Original languageEnglish
Article number16436
JournalScientific Reports
Volume7
Issue number1
Number of pages8
ISSN2045-2322
DOIs
Publication statusPublished - 2017

Bibliographical note

© The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Cre-ative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not per-mitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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