Journal of Atmospheric Chemistry

, Volume 38, Issue 3, pp 277–294

On the Role of Lightning NOx in the Formation of Tropospheric Ozone Plumes: A Global Model Perspective

  • Didier Hauglustaine
  • Louisa Emmons
  • Mike Newchurch
  • Guy Brasseur
  • Toshinori Takao
  • Kouji Matsubara
  • James Johnson
  • Brian Ridley
  • Jeff Stith
  • James Dye
Article

DOI: 10.1023/A:1006452309388

Cite this article as:
Hauglustaine, D., Emmons, L., Newchurch, M. et al. Journal of Atmospheric Chemistry (2001) 38: 277. doi:10.1023/A:1006452309388
  • 155 Downloads

Abstract

A series of ozone transects measured each year from 1987 to 1990 over thewestern Pacific and eastern Indian oceans between mid-November andmid-Decembershows a prominent ozone maximum reaching 50–80 ppbv between 5 and 10 kmin the 20° S–40° S latitude band. This maximum contrasts with ozonemixing ratios lower than20 ppbv measured at the same altitudes in equatorial regions. Analyses witha globalchemical transport model suggest that these elevated ozone values are part ofa large-scale tropospheric ozone plume extending from Africa to the western Pacific acrosstheIndian ocean. These plumes occur several months after the peak in biomassburninginfluence and during a period of high lightning activity in the SouthernHemispheretropical belt. The composition and geographical extent of these plumes aresimilar to theozone layers previously encountered during the biomass burning season in thisregion.Our model results suggest that production of nitrogen oxides from lightningstrokes sustains the NOx (= NO+NO2) levels and the ozonephotochemical productionrequired in the upper troposphere to form these persistent elevated ozonelayers emanating from biomass burning regions.

atmospheric compositionozonelightning emissions

Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • Didier Hauglustaine
    • 1
  • Louisa Emmons
    • 2
  • Mike Newchurch
    • 3
  • Guy Brasseur
    • 4
  • Toshinori Takao
    • 5
  • Kouji Matsubara
    • 5
  • James Johnson
    • 6
  • Brian Ridley
    • 2
  • Jeff Stith
    • 7
  • James Dye
    • 8
  1. 1.Service d'Aéronomie du Centre National de la Recherche ScientifiqueParisFrance
  2. 2.Atmospheric Chemistry DivisionNCARBoulderU.S.A
  3. 3.Department of Atmospheric ScienceUniversity of Alabama in HuntsvilleU.S.A
  4. 4.Max Planck Institute for MeteorologyHamburgGermany
  5. 5.Japan Meteorological AgencyJapan
  6. 6.NOAA/PMELSeattleU.S.A
  7. 7.University of North DakotaGrand ForksU.S.A
  8. 8.Mesoscale and Microscale MeteorologyNCARBoulderU.S.A