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Air-sea Fluxes of Biogenic Bromine from the Tropical and North Atlantic Ocean : Volume 8, Issue 5 (21/10/2008)

By Carpenter, L. J.

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Book Id: WPLBN0003998337
Format Type: PDF Article :
File Size: Pages 27
Reproduction Date: 2015

Title: Air-sea Fluxes of Biogenic Bromine from the Tropical and North Atlantic Ocean : Volume 8, Issue 5 (21/10/2008)  
Author: Carpenter, L. J.
Volume: Vol. 8, Issue 5
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Jones, C. E., Dunk, R. M., Hornsby, K. E., & Carpenter, L. J. (2008). Air-sea Fluxes of Biogenic Bromine from the Tropical and North Atlantic Ocean : Volume 8, Issue 5 (21/10/2008). Retrieved from

Description: Department of Chemistry, University of York, York, YO10 5DD, UK. Air-sea fluxes and bulk seawater and atmospheric concentrations of bromoform (CHBr3) and dibromomethane (CH2Br2) were measured during two research cruises in the northeast Atlantic (53–59° N, June–July 2006) and tropical eastern Atlantic Ocean including over the African coastal upwelling system (16–35° N May–June 2007). Saturations and sea-air fluxes of these compounds generally decrease in the order coastal>upwelling>shelf>open ocean, and a broad trend of elevated surface seawater concentrations with high chlorophylla was observed. From limited data from eastern Atlantic coastlines, we tentatively suggest that globally, coastal and coastally-influenced waters together contribute ~2.4 Gmol Br yr−1 (24–56%) of CHBr3. We show that upwelling regions (coastal and equatorial) represent regional hot spots of bromocarbons, but are probably not of major significance globally, contributing only a few percent of the total global emissions of CHBr3 and CH2Br2. We also show that the concentration ratio of CH2Br2/CHBr3 in seawater is a strong function of concentration (and location), with a lower CH2Br2/CHBr3 ratio found in coastal regions near to macroalgal sources.

Air-sea fluxes of biogenic bromine from the tropical and North Atlantic Ocean

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