Short residence time for iron in surface seawater impacted by atmospheric dry deposition from Saharan dust events

Croot, Peter L., Streu, Peter and Baker, Alex R. ORCID: https://orcid.org/0000-0002-8365-8953 (2004) Short residence time for iron in surface seawater impacted by atmospheric dry deposition from Saharan dust events. Geophysical Research Letters, 31 (23). ISSN 0094-8276

Full text not available from this repository. (Request a copy)

Abstract

Measurements of dissolved (DFe) and total iron (TFe) in the upper water column are presented from the German SOLAS (Surface Ocean - Lower Atmosphere Study) cruise (M55), along a west to east transect at 10°N, in the equatorial Atlantic in October/November 2002. Aerosol samples were collected simultaneously during this time and are used to estimate an iron flux to the surface waters. Resulting flux estimates combined with iron inventories in the near surface waters reveal extremely short fractional mean residence times (6–62 days) for total (dissolved and particulate) iron in waters directly under the path of Saharan dust plumes. These results suggest that individual dust storms can supply a significant amount of the present iron upper water column inventory which is subsequent rapidly removed by aggregation and sinking.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Environmental Sciences
UEA Research Groups:	Faculty of Science > Research Groups > Centre for Ocean and Atmospheric Sciences
Depositing User:	Rosie Cullington
Date Deposited:	30 Mar 2011 14:21
Last Modified:	13 Apr 2023 13:39
URI:	https://ueaeprints.uea.ac.uk/id/eprint/27683
DOI:	10.1029/2004GL020153

Actions (login required)

View Item