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Detailed Reference Information |
Guieu, C., Bonnet, S., Wagener, T. and Loÿe-Pilot, M. (2005). Biomass burning as a source of dissolved iron to the open ocean?. Geophysical Research Letters 32: doi: 10.1029/2005GL022962. issn: 0094-8276. |
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While the Mediterranean region is typified by frequent summer fires, the 2003 heat wave that hit Europe, and France in particular, made this season longer causing devastating fires. Aerosol sampling performed in the French Riviera between August and September 2003 indicated that iron concentrations in 2003 were significantly higher than in previous years. Continuous pyrogenic emissions are suspected to be the cause of high Fe concentrations. When these particles were dissolved in seawater, 2% of the total iron content was found in solution. This amount could be significant for the water column on a regional scale. Indeed, these fires might explain the observed dissolved iron enrichment of the surface mixed layer (+0.4 nM) measured in the Ligurian Sea during August. In contrast to a locally significant effect, pyrogenic inputs have little impact on the global Fe budget since they represent at most 10% of desert dust inputs. |
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Abstract |
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Keywords
Atmospheric Composition and Structure, Aerosols and particles (0345, 4801, 4906), Atmospheric Composition and Structure, Air/sea constituent fluxes (3339, 4504), Oceanography, Biological and Chemical, Trace elements |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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