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Atmospheric Processing of Iron Carried by Mineral Dust : Volume 13, Issue 18 (16/09/2013)

By Nickovic, S.

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Book Id: WPLBN0003989671
Format Type: PDF Article :
File Size: Pages 13
Reproduction Date: 2015

Title: Atmospheric Processing of Iron Carried by Mineral Dust : Volume 13, Issue 18 (16/09/2013)  
Author: Nickovic, S.
Volume: Vol. 13, Issue 18
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2013
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Vukovic, A., Vujadinovic, M., & Nickovic, S. (2013). Atmospheric Processing of Iron Carried by Mineral Dust : Volume 13, Issue 18 (16/09/2013). Retrieved from http://members.worldlibrary.net/


Description
Description: World Meteorological Organization, Geneva, Switzerland. Nutrification of the open ocean originates mainly from deposited aerosol in which the bio-avaliable iron is likely to be an important factor. The relatively insoluble iron in dust from arid soils becomes more soluble after atmospheric processing and, through its deposition in the ocean, could contribute to marine primary production. To numerically simulate the atmospheric route of iron from desert sources to sinks in the ocean, we developed a regional atmospheric dust-iron model that included parameterization of the transformation of iron to a soluble form caused by dust mineralogy, cloud processes and solar radiation. When compared with field data on the aerosol iron, which were collected during several Atlantic cruises, the results from the higher-resolution simulation experiments showed that the model was capable of reproducing the major observed patterns.

Summary
Atmospheric processing of iron carried by mineral dust

Excerpt
Baker, A. R. and Croot, P. L.: Atmospheric and marine controls on aerosol iron solubility in seawater, Mar. Chem., 120, 4–13, doi:10.1016/j.marchem.2008.09.003, 2008.; Baker, A. R. and Jickells, T. D.: Mineral particle size as a control on aerosol iron solubility, Geophys. Res. Lett., 33, L17608, doi:10.1029/2006GL026557, 2006.; Baker, A. R., Kelly, S. D., Biswas, K. F., Witt, M., and Jickells, T. D.: Atmospheric deposition of nutrients to the Atlantic Ocean, Geophys. Res. Lett., 30, 2296, doi:10.1029/2003GL018518, 2003.; Baker, A. R., Jickells, T. D., Witt, M., and Linge. K. L.: Trends in the solubility of iron, aluminium, manganese and phosphorus in aerosol collected over the Atlantic Ocean, Marine Chem., 98, 43–58, 2006.; Baker, A. R., Lesworth, T., Adams, C., Jickells, T. D., and Ganzeveld, L.: Estimation of atmospheric nutrient inputs to the Atlantic Ocean from 50° N to 50° S based on large scale field sampling: fixed nitrogen and dry deposition of phosphorus, Global Biogeochem. Cy., 24, GB3006, doi:10.1029/2009GB003634, 2010.; Boers, R., de Haij, M. J., Wauben, W. M. F., Baltink, H. K., van Ulft, L. H., Savenije, M., and Long, C. N.: Optimized fractional cloudiness determination from five ground based remote sensing techniques, J. Geophys. Res., 115, D24116, doi:10.1029/2010JD014661, 2010.; Buck, C. S., Landing, W. M., Resing, J. A., and Measures, C. I.: The solubility and deposition of aerosol Fe and other trace elements in the North Atlantic Ocean: Observations from the A16N CLIVAR/CO2 repeat hydrography section, Marine Chem., 120, 57–70, 2010.; Claquin, T., Schulz, M., and Balkanski, Y. J.: Modeling the mineralogy of atmospheric dust sources, J. Geophys. Res., 104, 22243–22256, 1999.; Chen, Y: Sources and fate of atmospheric nutrients over the remote oceans and their role on controlling marine diazotrophic microorganisms, PhD Thesis, University of Maryland, USA, 2004.; Chen, Y. and Siefert, R. L.: Seasonal and spatial distributions and dry deposition fluxes of atmospheric total and labile iron over the tropical and subtropical North Atlantic Ocean, J. Geophys. Res., 109, D09305, doi:10.1029/2003JD003958, 2004.; Desboeufs, K. V., Losno, R., and Colin, J. L.: Factors influencing aerosol solubility during cloud processes, Atmos. Environ., 35, 3529–3537, 2001.; Fan, S.-M., Moxim, W., and Levy, H.: Aeolian input of bioavailable iron to the ocean, Geophys. Res. Lett., 33, L07602, doi:10.1029/2005GL024852, 2006.; Fung, I., Meyn, S. K., Tegen, I., Doney, S., John, J., and Bishop, J.: Iron supply and demand in the upper ocean, Global Biogeochem. Cy., 14, 281–295, 2000.; Gao, Y., Fan, S.-M., and Sarmiento, J. L.: Aeolian iron input to the ocean through precipitation scavenging: A modeling perspective and its implication for natural iron fertilization in the ocean, J. Geophys. Res., 108, 4221, doi:10.1029/2002JD002420, 2003.; Guieu, C., Loye-Pilot, C., Ridame, C., and Thomas, C.: Chemical characterization of the Saharan dust end-member: Some biogeochemical implications for the western Mediterranean Sea, J. Geophys. Res., 107, 4258, doi:10.1029/2001JD000582, 2002.; Hand, J. L., Mahowald, N. M., Chen, Y., Siefert, R. L., Luo, C., Subramaniam, A., and Fung, I.: Estimates of atmospheric-processed soluble iron from observations and a global mineral aerosol model: Biogeochemical implications, J. Geophys. Res., 109, D17205,

 

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