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Blue Optical Observations of Narrow Bipolar Events by ASIM Suggest Corona Streamer Activity in Thunderstorms

Soler, S. and Pérez-Invernón, Francisco J. and Gordillo-Vázquez, F. J. and Luque, Alejandro and Li, D. and Malagón-Romero, A. and Neubert, Torsten and Chanrion, O. and Reglero, Victor and Navarro-González, J. and Lu, Gaopeng and Zhang, H. and Huang, A. and Østgaard, Nikolai (2020) Blue Optical Observations of Narrow Bipolar Events by ASIM Suggest Corona Streamer Activity in Thunderstorms. Journal of Geophysical Research: Atmospheres, 125 (16), pp. 1-13. Wiley. doi: 10.1029/2020JD032708. ISSN 2169-897X.

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Official URL: https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020JD032708


Abstract While narrow bipolar events (NBEs) could be related with lightning initiation, their intrinsic physics remains in question. Here we report on optical measurements by the Atmosphere-Space Interactions Monitor (ASIM) on the International Space Station (ISS) of blue flashes associated with NBEs. They are observed in a narrow blue band centered at 337 nm, with no simultaneous activity at 777.4 nm, considered a strong lightning emission line. From radio waves measured from the ground, we find that 7 of 10 single-pulse blue events can be identified as positive NBEs. The source altitudes estimated from optical and radio signals agree and indicate that the sources of the blue flashes are located between ∼8.5 and ∼14 km, in a cloud reaching 14–15 km altitude. The observations suggest that single-pulse blue flashes are from cold ionization waves, so-called streamers, and that positive NBEs are corona discharges formed by many streamers.

Item URL in elib:https://elib.dlr.de/140856/
Document Type:Article
Additional Information:e2020JD032708 10.1029/2020JD032708
Title:Blue Optical Observations of Narrow Bipolar Events by ASIM Suggest Corona Streamer Activity in Thunderstorms
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Soler, S.CSIC, Granada, Spainhttps://orcid.org/0000-0001-8032-5427UNSPECIFIED
Pérez-Invernón, Francisco J.DLR, IPAhttps://orcid.org/0000-0002-0719-8203UNSPECIFIED
Gordillo-Vázquez, F. J.CSIC, Granada, SpainUNSPECIFIEDUNSPECIFIED
Luque, AlejandroCSIC, Granada, Spainhttps://orcid.org/0000-0002-7922-8627UNSPECIFIED
Neubert, TorstenDTU Space, Kongens Lyngby, DenmarkUNSPECIFIEDUNSPECIFIED
Chanrion, O.DTU Space, Kongens Lyngby, DenmarkUNSPECIFIEDUNSPECIFIED
Reglero, VictorUniversity of Valencia, Valencia, SpainUNSPECIFIEDUNSPECIFIED
Navarro-González, J.University of Valencia, Valencia, SpainUNSPECIFIEDUNSPECIFIED
Lu, GaopengCAS Univ. of Science and Technology of China, Hefei, Chinahttps://orcid.org/0000-0003-4523-0144UNSPECIFIED
Zhang, H.Chinese Academy of Sciences, Beijing, ChinaUNSPECIFIEDUNSPECIFIED
Huang, A.Chinese Academy of Sciences, Beijing, ChinaUNSPECIFIEDUNSPECIFIED
Østgaard, NikolaiUniversity of Bergen, Bergen, NorwayUNSPECIFIEDUNSPECIFIED
Date:27 August 2020
Journal or Publication Title:Journal of Geophysical Research: Atmospheres
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 1-13
Keywords:Lightning, Clouds, NBE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Raumfahrzeuge Entwurf, Systemanalyse, Simulation, Messtechnik (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Perez-Invernon, Francisco Javier
Deposited On:10 Feb 2021 08:31
Last Modified:28 Feb 2023 14:55

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