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Substantial contribution of iodine to Arctic ozone destruction

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  • Nuria Benavent, CSIC - Institute of Physical Chemistry Rocasolano
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  • Anoop S. Mahajan, Indian Institute of Tropical Meteorology
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  • Qinyi Li, CSIC - Institute of Physical Chemistry Rocasolano
  • ,
  • Carlos A. Cuevas, CSIC - Institute of Physical Chemistry Rocasolano
  • ,
  • Julia Schmale, Swiss Federal Institute of Technology Lausanne
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  • Hélène Angot, Swiss Federal Institute of Technology Lausanne
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  • Tuija Jokinen, University of Helsinki, The Cyprus Institute
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  • Lauriane L.J. Quéléver, Institute for Atmospheric and Earth System Research, University of Helsinki
  • ,
  • Anne Marlene Blechschmidt, University of Bremen
  • ,
  • Bianca Zilker, University of Bremen
  • ,
  • Andreas Richter, University of Bremen
  • ,
  • Jesús A. Serna, CSIC - Institute of Physical Chemistry Rocasolano
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  • David Garcia-Nieto, CSIC - Institute of Physical Chemistry Rocasolano
  • ,
  • Rafael P. Fernandez, National Research Council of Argentina
  • ,
  • Henrik Skov
  • Adela Dumitrascu, University of Gothenburg
  • ,
  • Patric Simões Pereira, University of Gothenburg
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  • Katarina Abrahamsson, University of Gothenburg
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  • Silvia Bucci, University of Vienna
  • ,
  • Marina Duetsch, University of Vienna
  • ,
  • Andreas Stohl, University of Vienna
  • ,
  • Ivo Beck, Swiss Federal Institute of Technology Lausanne
  • ,
  • Tiia Laurila, University of Helsinki
  • ,
  • Byron Blomquist, University of Colorado Boulder, NOAA
  • ,
  • Dean Howard, University of Colorado Boulder, NOAA
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  • Stephen D. Archer, Bigelow Laboratory for Ocean Sciences
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  • Ludovic Bariteau, University of Colorado Boulder, NOAA
  • ,
  • Detlev Helmig, University of Colorado Boulder, Boulder AIR
  • ,
  • Jacques Hueber, Universite Grenoble Alpes, JH Atmospheric Instrument Design
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  • Hans Werner Jacobi, Universite Grenoble Alpes
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  • Kevin Posman, Bigelow Laboratory for Ocean Sciences
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  • Lubna Dada, Swiss Federal Institute of Technology Lausanne
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  • Kaspar R. Daellenbach, Paul Scherrer Institute
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  • Alfonso Saiz-Lopez, CSIC - Institute of Physical Chemistry Rocasolano

Unlike bromine, the effect of iodine chemistry on the Arctic surface ozone budget is poorly constrained. We present ship-based measurements of halogen oxides in the high Arctic boundary layer from the sunlit period of March to October 2020 and show that iodine enhances springtime tropospheric ozone depletion. We find that chemical reactions between iodine and ozone are the second highest contributor to ozone loss over the study period, after ozone photolysis-initiated loss and ahead of bromine.

Original languageEnglish
JournalNature Geoscience
Volume15
Pages (from-to)770-773
Number of pages4
ISSN1752-0894
DOIs
Publication statusPublished - Oct 2022

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