14B.5 Modelling Global Halogens and Tropospheric Ozone

Thursday, 16 January 2020: 2:30 PM
207 (Boston Convention and Exhibition Center)
Alfonso Saiz-Lopez, Consejo Superior de Investigaciones Científicas, Madrid, Spain; and A. Badia, F. Iglesias-Suarez, R. P. Fernandez, C. Cuevas, D. Kinnison, S. Tilmes, and J. F. Lamarque

Reactive halogens (chlorine, bromine, iodine) destroy tropospheric ozone (O3) and affect the atmosphere’s oxidative capacity and radiative forcing. The dominant natural source of reactive halogens is the ocean, where they are produced by both biotic and abiotic processes. This presentation will report on recent advances in the CAM-Chem model to represent global halogen emissions and their impact on tropospheric ozone and oxidation capacity.
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