Importance of reactive halogens in the tropical marine atmosphere: A regional modelling study using WRF-Chem

This study investigates the impact of reactive halogen species (RHS, containing chlorine (Cl), bromine (Br) or iodine (I)) on atmospheric chemistry in the tropical troposphere and explores the sensitivity to uncertainties in the fluxes of RHS to the atmosphere and their chemical processing. To do this, the regional chemistry transport model WRF-Chem has been extended to include Br and I, as well as Cl chemistry for the first time, including heterogeneous recycling reactions involving sea-salt aerosol and other particles, reactions of Br and Cl with volatile organic compounds (VOCs), along with oceanic emissions of halocarbons, VOCs and inorganic iodine. The study focuses on the tropical east Pacific using field observations from the Tropical Ocean tRoposphere Exchange of Reactive halogen species and Oxygenated VOC (TORERO) campaign (January-February 2012) to evaluate the model performance.

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Author Badia, A.
Reeves, C. E.
Baker, A. R.
Saiz-Lopez, A.
Volkamer, R.
Koenig, T. K.
Apel, Eric C.
Hornbrook, Rebecca
Carpenter, L. J.
Andrews, S. J.
Sherwen, T.
von Glasow, R.
Publisher UCAR/NCAR - Library
Publication Date 2019-03-12T00:00:00
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Topic Category geoscientificInformation
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Metadata Date 2025-07-11T19:30:30.316551
Metadata Record Identifier edu.ucar.opensky::articles:22388
Metadata Language eng; USA
Suggested Citation Badia, A., Reeves, C. E., Baker, A. R., Saiz-Lopez, A., Volkamer, R., Koenig, T. K., Apel, Eric C., Hornbrook, Rebecca, Carpenter, L. J., Andrews, S. J., Sherwen, T., von Glasow, R.. (2019). Importance of reactive halogens in the tropical marine atmosphere: A regional modelling study using WRF-Chem. UCAR/NCAR - Library. https://n2t.org/ark:/85065/d7959mmk. Accessed 02 August 2025.

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