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Carbonate Precipitation in Brine – a Potential Trigger for Tropospheric Ozone Depletion Events : Volume 6, Issue 12 (17/10/2006)

By Sander, R.

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Book Id: WPLBN0003994601
Format Type: PDF Article :
File Size: Pages 6
Reproduction Date: 2015

Title: Carbonate Precipitation in Brine – a Potential Trigger for Tropospheric Ozone Depletion Events : Volume 6, Issue 12 (17/10/2006)  
Author: Sander, R.
Volume: Vol. 6, Issue 12
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2006
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Kaleschke, L., Sander, R., & Burrows, J. (2006). Carbonate Precipitation in Brine – a Potential Trigger for Tropospheric Ozone Depletion Events : Volume 6, Issue 12 (17/10/2006). Retrieved from http://community.ebooklibrary.org/


Description
Description: Air Chemistry Department, Max-Planck Institute of Chemistry, P.O. Box 3060, 55020 Mainz, Germany. Tropospheric ozone depletion events (ODEs) at high latitudes were discovered 20 years ago and are attributed to bromine explosions. However, an unresolved issue is the explanation of how the acid-catalyzed reaction cycle is triggered in atmospheric particles derived from alkaline sea water. By simulating the chemistry occuring in polar regions over recently formed sea ice, we can model successfully the transformation of inert sea-salt bromide to reactive bromine monoxide (BrO) and the subsequent ODE when precipitation of calcium carbonate from freezing sea water is taken into account. In addition, we found the temperature dependence of the equilibrium BrCl+Br↔Br2Cl to be important.

Summary
Carbonate precipitation in brine – a potential trigger for tropospheric ozone depletion events

Excerpt
Adams, J. W., Holmes, N. S., and Crowley, J. N.: Uptake and reaction of \chemHOBr on frozen and dry \chemNaCl/\chemNaBr surfaces between 253 and 233 \unitK, Atmos. Chem. Phys., 2, 79–91, 2002.; Barrie, L. A., Bottenheim, J. W., Schnell, R. C., Crutzen, P. J., and Rasmussen, R. A.: Ozone destruction and photochemical reactions at polar sunrise in the lower Arctic atmosphere, Nature, 334, 138–141, 1988.; Beine, H. J., Honrath, R. E., Dominé, F., Simpson, W. R., and Fuentes, J. D.: NOx during background and ozone depletion periods at Alert: Fluxes above the snow surface, J. Geophys. Res., 107D, 4584, doi:10.1029/2002JD002082, 2002.; Borken, J.: Ozonabbau durch Halogene in der arktischen Grenzschicht: Reaktionskinetische Modellrechnungen zu einem Frühjahrsphänomen, Diplomarbeit, Ruprecht-Karls-Universität Heidelberg, Germany, 1996.; Fan, S.-M. and Jacob, D. J.: Surface ozone depletion in Arctic spring sustained by bromine reactions on aerosols, Nature, 359, 522–524, 1992.; Evans, M. J., Jacob, D. J., Atlas, E., Cantrell, C. A., Eisele, F., Flocke, F., Fried, A., Mauldin, R. L., Ridley, B. A., Wert, B., Talbot, R., Blake, D., Heikes, B., Snow, J., Walega, J., Weinheimer, A. J., and Dibb, J.: Coupled evolution of \chemBrO_x-\chemClO_x-HOx-NOx chemistry during bromine-catalyzed ozone depletion events in the Arctic boundary layer, J. Geophys. Res., 108D, 8368, doi:10.1029/2002JD002732, 2003.; Foster, K. L., Plastridge, R. A., Bottenheim, J. W., Shepson, P. B., Finlayson-Pitts, B. J., and Spicer, C. W.: The role of \chemBr_2 and \chemBrCl in surface ozone destruction at polar sunrise, Science, 291, 471–474, 2001.; Jobson, B. T., Niki, H., Yokouchi, Y., Bottenheim, J., Hopper, F., and Leaitch, R.: Measurements of \chemC_2-\chemC_6 hydrocarbons during the polar sunrise 92 experiment: Evidence for \chemCl-atom and \chemBr-atom chemistry, J. Geophys. Res., 99D, 25 355–25 368, 1994.; Kaleschke, L., Richter, A., Burrows, J., Afe, O., Heygster, G., Notholt, J., Rankin, A. M., Roscoe, H. K., Hollwedel, J., Wagner, T., and Jacobi, H.-W.: Frost flowers on sea ice as a source of sea salt and their influence on tropospheric halogen chemistry, Geophys. Res. Lett., 31, L16114, doi:10.1029/2004GL020655, 2004.; Lehrer, E., Hönninger, G., and Platt, U.: A one dimensional model study of the mechanism of halogen liberation and vertical transport in the polar troposphere, Atmos. Chem. Phys., 4, 2427–2440, 2004.; Liu, Q. and Margerum, D. W.: Equilibrium and kinetics of bromine chloride hydrolysis, Environ. Sci. Technol., 35, 1127–1133, 2001.; McConnell, J. C., Henderson, G. S., Barrie, L., Bottenheim, J., Niki, H., Langford, C. H., and Templeton, E. M. J.: Photochemical bromine production implicated in Arctic boundary-layer ozone depletion, Nature, 355, 150–152, 1992.; Michalowski, B. A., Francisco, J. S., Li, S.-M., Barrie, L. A., Bottenheim, J. W., and Shepson, P. B.: A computer model study of multiphase chemistry in the Arctic boundary layer during polar sunrise, J. Geophys. Res., 105D, 15 131–15 145, 2000.; Papadimitriou, S., Kennedy, H., Kattner, G., Dieckmann, G. S., and Thomas, D. N.: Experimental evidence for carbonate precipitation and \chemCO_2 degassing during sea ice formation, Geochim. Cosmochim. Acta, 68, 1749–1761, 2003.; Rankin, A. M. and Wolff, E. W.: A year-long record of size-segregated aerosol composition at Halley, Antarctica, J. Geophys. Res., 108D, 4775, doi:10.1029/2003JD003993, 2003.

 

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