Global Impact of Lightning‐Produced Oxidants

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Jingqiu Mao
  • Tianlang Zhao
  • Christoph A. Keller
  • Patrick J. Mcfarland
  • Jena M. Jenkins
  • William H. Brune

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article numbere2021GL095740
Journal / PublicationGeophysical Research Letters
Volume48
Issue number21
Online published28 Oct 2021
Publication statusPublished - 16 Nov 2021

Abstract

Lightning plays a major role in tropospheric oxidation, and its role on modulating tropospheric chemistry was thought to be emissions of nitrogen oxides (NO). Recent field and laboratory measurements demonstrate that lightning generates extremely large amounts of oxidants, including hydrogen oxides (HO) and O3. Here, we implement these lightning-produced oxidants in a global chemical transport model to examine its global impact on tropospheric composition. We find that lightning-produced oxidants can increase global mass weighted OH by 0.3%–10% and affect CO, O3, and reactive nitrogen substantially, depending on the emission strength of oxidants from lightning. Our work highlights the importance and uncertainties of lightning-produced oxidants, as well as the need for rethinking the role of lightning in tropospheric oxidation chemistry.

Citation Format(s)

Global Impact of Lightning‐Produced Oxidants. / Mao, Jingqiu; Zhao, Tianlang; Keller, Christoph A.; Wang, Xuan; Mcfarland, Patrick J.; Jenkins, Jena M.; Brune, William H.

In: Geophysical Research Letters, Vol. 48, No. 21, e2021GL095740, 16.11.2021.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review