World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

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

By Carpenter, L. J.

Click here to view

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
Historic
Publication Date:
2008
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

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 http://www.ebooklibrary.org/


Description
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.

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

Excerpt
Bilde, M., Wallington, T J., Ferronato, C., Orlando, J J., Tyndall, G S., Estupinan, E., and Haberkorn, S.: Atmospheric chemistry of CH2BrCl, CHBrCl2, CHBr2Cl, CF3CHBrCl, and CBr2Cl2, J. Phys. Chem. A, 102, 1976–1986, 1998.; Butler, J H., King, D B., Lobert, J M., Montzka, S A., Yvon-Lewis, S A., Hall, B D., Warwick, N J., Mondeel, D J., Aydin, M., and Elkins, J W.: Oceanic distributions and emissions of short-lived halocarbons, Global Biogeochem. Cy., 21, GB1023, doi:10.1029/2006GB002732, 2007a.; Carpenter, L J. and Liss, P S.: On temperate sources of bromoform and other reactive organic bromine gases, J. Geophys. Res., 105, 20 539–20 547, 2000.; Butler, J H., Wallace, D., Carpenter, L., Hall, B., Montzka, S., Quack, B., Atlas, E., Smythe-Wright, D., and Yvon-Lewis, S.: A need for intercalibration of atmospheric and oceanic measurements of short-lived halocarbons, Poster presented at EGU, Vienna, 2007b.; Carpenter, L J., Malin, G., Liss, P S., and Kupper, F C.: Novel biogenic iodine-containing trihalomethanes and other short-lived halocarbons in the coastal east Atlantic, Global Biogeochem. Cy., 14, 1191–1204, 2000.; Carpenter, L J., Liss, P S., and Penkett, S A.: Marine organohalogens in the atmosphere over the Atlantic and Southern Oceans, J. Geophys. Res., 108(D9), 4256, doi:10.1029/2002JD002769, 2003.; Carpenter, L J., Wevill, D J., Hopkins, J R., Dunk, R M., Jones, C E., Hornsby, K E., and McQuaid, J B.: Bromoform in tropical Atlantic air from 25 degrees N to 25 degrees S, Geophys. Res. Lett., 34, L11810, doi:10.1029/2007GL029893, 2007.; Chuck, A L., Turner, S M., and Liss, P S.: Oceanic distributions and air-sea fluxes of biogenic halocarbons in the open ocean, J. Geophys. Res., 110, C10022, doi:10.1029/2004JC002741, 2005.; Class, T H. and Ballschmiter, K.: Chemistry of organic traces in air .8. Sources and distribution of bromochloromethanes and bromochloromethanes in marine air and surface water of the Atlantic-Ocean, J. Atmos. Chem., 6, 35–46, 1988.; Fedoseev, A.: Geostrophic circulation of surface waters on the shelf of north–west Africa, Rapp. P.-v. Réun. Cons. Int. Explor. Mer., 159, 32–37, 1970.; Geen, C.: Selected marine sources and sinks of bromoform and other low molecular weight organobromines, M.Sc. Thesis, Dalhousie Univ., Halifax, Nova Scotia, Canada, 1992.; Goodwin, K D., Schaefer, J K., and Oremland, R S.: Bacterial oxidation of dibromomethane and methyl bromide in natural waters and enrichment cultures, Appl. Environ. Microb., 64, 4629–4636, 1998.; Hagen, E.: Northwest African upwelling scenario, Oceanol. Acta, 24, S113–S128, 2001.; Kock, A., Gebhardt, S., and Bange, H W.: Methane emissions from the upwelling area off Mauritania (NW Africa), Biogeosciences, 5, 1119–1125, 2008.; Kwok, W M., Zhao, C Y., Li, Y L., Guan, X G., and Phillips, D L.: Direct observation of an isopolyhalomethane O-H insertion reaction with water: Picosecond time-resolved resonance Raman study of the isobromoform reaction with water to produce a CHBr2OH product, J. Chem. Phys., 120, 3323–3332, 2004.; Li, S M., Yokouchi, Y., Barrie, L A., Muthuramu, K., Shepson, P B., Bottenheim, J W., Sturges, W T., and Landsberger, S.: Organic and inorganic bromine compounds and their composition in the Arctic troposphere during polar sunrise, J. Geophys. Res., 99, 25 415–25 428, 1994.; Mabey, W. and Mill, T.: Critical-review of hydrolysis of organic-compounds in water under environmental-conditions, J. Phys. Chem. Ref. Data, 7, 383–415, 1978.; Menard, H W. and Smith, S M.: Hypsometry of ocean basin provinces, J. Geophys. Res., 71, 4305–4325, 1966.; Minas, H J., Codispoti, L A., and Dugdale, R C.: Nutrients and primary production in the upwelling region off Northwest Africa, Rapp. P.-v. Réun. Cons. Int. Explor. Mer., 180, 148–180, 1982.; Nielsen, J E. and Douglass, A R.: Simulation of br

 

Click To View

Additional Books


  • An McM Modeling Study of Nitryl Chloride... (by )
  • Aerosol Hygroscopicity Parameter Derived... (by )
  • Hygroscopic Growth of Sub-micrometer and... (by )
  • Tropical Response to Extratropical Eastw... (by )
  • Emission Rate and Chemical State Estimat... (by )
  • Simultaneous Lidar Observations of Tempe... (by )
  • Volatile and Intermediate-volatility Org... (by )
  • Bvoc-aerosol-climate Interactions in the... (by )
  • Data Assimilation of Satellite Retrieved... (by )
  • Dust Aerosol Impact on North Africa Clim... (by )
  • Multi-model Simulation of Co and Hcho in... (by )
  • First Direct Measurements of Formaldehyd... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.