Title Introducing the bromide/alkalinity ratio for a follow-up discussion on "Precipitation of salts in freezing seawater and ozone depletion events; a status report", by Morin et al., published in Atmos. Chem. Phys., 8, 7317-7324, 2008
Author Sander, R.; Morin, S.
Author Affil Sander, R., Max-Planck-Institut für Chemie, Chemie der Atmosphäre, Mainz, Germany. Other: Meteo-France, France
Source Atmospheric Chemistry and Physics, 10(16), p.7655-7658, . Publisher: Copernicus, Katlenburg-Lindau, International. ISSN: 1680- 7316
Publication Date 2010
Notes In English. Published in Atmospheric Chemistry and Physics Discussions: 2 October 2009, http://www.atmos-chem-phys- discuss.net/9/20765/2009/acpd-9-20765- 2009.html ; accessed in June, 2011. 10 refs. GeoRef Acc. No: 310025
Index Terms cooling; evaporation; freezing; geochemistry; ice; ozone; temperature; alkalinity; atmosphere; bromides; bromine; calcium carbonate; depletion; halides; halogens; precipitation; salt water; sea water; troposphere
Abstract Sander et al. (2006) proposed that CaCO3 precipitation can be an important factor in triggering tropospheric ozone depletion events. Recently, Morin et al. (2008b) presented calculations with the FREZCHEM model and concluded that their results and interpretation cast doubt on the validity of this hypothesis. In this joint publication, we have re-analyzed the implications of the FREZCHEM results and show how they can be reconciled with the proposal of Sander et al. (2006). The chemical predictions of both approaches are consistent. Although an interpretation solely based on the alkalinity change in the brine does not support the conclusion of Sander et al. (2006), we show that the bromide/alkalinity ratio (which increases during the cooling of the brine) can be used as an indicator of the potential for triggering bromine explosions.
URL http://www.atmos-chem-phys.net/10/7655/2010/acp-10-7655-2010.pdf
Publication Type journal article
Record ID 65006827