Articles | Volume 20, issue 18
https://doi.org/10.5194/acp-20-10865-2020
https://doi.org/10.5194/acp-20-10865-2020
Research article
 | 
18 Sep 2020
Research article |  | 18 Sep 2020

Determination of the absorption cross sections of higher-order iodine oxides at 355 and 532 nm

Thomas R. Lewis, Juan Carlos Gómez Martín, Mark A. Blitz, Carlos A. Cuevas, John M. C. Plane, and Alfonso Saiz-Lopez

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Cited articles

Ashworth, S. H., Allan, B. J., and Plane, J. M. C.: High resolution spectroscopy of the OIO radical: Implications for the ozone-depleting potential of iodine, Geophys. Res. Lett., 29, 1456, https://doi.org/10.1029/2001gl013851, 2002. 
Atkinson, R., Baulch, D. L., Cox, R. A., Crowley, J. N., Hampson, R. F., Hynes, R. G., Jenkin, M. E., Rossi, M. J., and Troe, J.: Evaluated kinetic and photochemical data for atmospheric chemistry: Volume III – gas phase reactions of inorganic halogens, Atmos. Chem. Phys., 7, 981–1191, https://doi.org/10.5194/acp-7-981-2007, 2007. 
Baeza-Romero, M. T., Blitz, M. A., Goddard, A., and Seakins, P. W.: Time-of-flight mass spectrometry for time-resolved measurements: Some developments and applications, Int. J. Chem. Kinet., 44, 532–545, https://doi.org/10.1002/kin.20620, 2012. 
Bloss, W. J., Rowley, D. M., Cox, R. A., and Jones, R. L.: Kinetics and Products of the IO Self-Reaction, J. Phys. Chem. A, 105, 7840–7854, https://doi.org/10.1021/jp0044936, 2001. 
Burkholder, J. B., Sander, S. P., Abbat, J., Barker, J. R., Huie, R. E., Kolb, C. E., Kurylo, M. J., Orkin, V. L., Wilmouth, D. M., and Wine, P. H.: Chemical Kinetics and Photochemical Data for Use in Atmospheric Studies, Evaluation No. 18 JPL-NASA, Pasadena, 2015. 
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Iodine-bearing gasses emitted from the sea surface are chemically processed in the atmosphere, leading to iodine accumulation in aerosol and transport to continental ecosystems. Such processing involves light-induced break-up of large, particle-forming iodine oxides into smaller, ozone-depleting molecules. We combine experiments and theory to report the photolysis efficiency of iodine oxides required to assess the impact of iodine on ozone depletion and particle formation.
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