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Optical emissions associated with narrow bipolar events from thunderstorm clouds penetrating into the stratosphere

Author

Listed:
  • Feifan Liu

    (University of Science and Technology of China)

  • Gaopeng Lu

    (University of Science and Technology of China)

  • Torsten Neubert

    (Technical University of Denmark (DTU Space))

  • Jiuhou Lei

    (University of Science and Technology of China
    University of Science and Technology of China)

  • Oliver Chanrion

    (Technical University of Denmark (DTU Space))

  • Nikolai Østgaard

    (University of Bergen)

  • Dongshuai Li

    (Instituto de Astrofísica de Andalucía, CSIC, Glorieta de la Astronomia s/n)

  • Alejandro Luque

    (Instituto de Astrofísica de Andalucía, CSIC, Glorieta de la Astronomia s/n)

  • Francisco J. Gordillo-Vázquez

    (Instituto de Astrofísica de Andalucía, CSIC, Glorieta de la Astronomia s/n)

  • Victor Reglero

    (University of Valencia)

  • Weitao Lyu

    (State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences)

  • Baoyou Zhu

    (University of Science and Technology of China)

Abstract

Narrow bipolar events (NBEs) are signatures in radio signals from thunderstorms observed by ground-based receivers. NBEs may occur at the onset of lightning, but the discharge process is not well understood. Here, we present spectral measurements by the Atmosphere‐Space Interactions Monitor (ASIM) on the International Space Station that are associated with nine negative and three positive NBEs observed by a ground‐based array of receivers. We found that both polarities NBEs are associated with emissions at 337 nm with weak or no detectable emissions at 777.4 nm, suggesting that NBEs are associated with streamer breakdown. The rise times of the emissions for negative NBEs are about 10 μs, consistent with source locations at cloud tops where photons undergo little scattering by cloud particles, and for positive NBEs are ~1 ms, consistent with locations deeper in the clouds. For negative NBEs, the emission strength is almost linearly correlated with the peak current of the associated NBEs. Our findings suggest that ground-based observations of radio signals provide a new means to measure the occurrences and strength of cloud-top discharges near the tropopause.

Suggested Citation

  • Feifan Liu & Gaopeng Lu & Torsten Neubert & Jiuhou Lei & Oliver Chanrion & Nikolai Østgaard & Dongshuai Li & Alejandro Luque & Francisco J. Gordillo-Vázquez & Victor Reglero & Weitao Lyu & Baoyou Zhu, 2021. "Optical emissions associated with narrow bipolar events from thunderstorm clouds penetrating into the stratosphere," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-26914-4
    DOI: 10.1038/s41467-021-26914-4
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    References listed on IDEAS

    as
    1. Julia N. Tilles & Ningyu Liu & Mark A. Stanley & Paul R. Krehbiel & William Rison & Michael G. Stock & Joseph R. Dwyer & Robert Brown & Jennifer Wilson, 2019. "Fast negative breakdown in thunderstorms," Nature Communications, Nature, vol. 10(1), pages 1-12, December.
    2. Ningyu Liu & Nicholas Spiva & Joseph R. Dwyer & Hamid K. Rassoul & Dwayne Free & Steven A. Cummer, 2015. "Upward electrical discharges observed above Tropical Depression Dorian," Nature Communications, Nature, vol. 6(1), pages 1-8, May.
    3. William Rison & Paul R. Krehbiel & Michael G. Stock & Harald E. Edens & Xuan-Min Shao & Ronald J. Thomas & Mark A. Stanley & Yang Zhang, 2016. "Observations of narrow bipolar events reveal how lightning is initiated in thunderstorms," Nature Communications, Nature, vol. 7(1), pages 1-12, April.
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