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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Natural iron fertilization by the Eyjafjallajökull volcanic eruption
Geophysical Research Letters, Volume 40, No. 5, Year 2013
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Description
Aerosol deposition from the 2010 eruption of the Icelandic volcano Eyjafjallajökull resulted in significant dissolved iron (DFe) inputs to the Iceland Basin of the North Atlantic. Unique ship-board measurements indicated strongly enhanced DFe concentrations (up to 10 nM) immediately under the ash plume. Bioassay experiments performed with ash collected at sea under the plume also demonstrated the potential for associated Fe release to stimulate phytoplankton growth and nutrient drawdown. Combining Fe dissolution measurements with modeled ash deposition suggested that the eruption had the potential to increase DFe by >0.2 nM over an area of up to 570,000 km 2. Although satellite ocean color data only indicated minor increases in phytoplankton abundance over a relatively constrained area, comparison of in situ nitrate concentrations with historical records suggested that ash deposition may have resulted in enhanced major nutrient drawdown. Our observations thus suggest that the 2010 Eyjafjallajökull eruption resulted in a significant perturbation to the biogeochemistry of the Iceland Basin. © 2013. American Geophysical Union. All Rights Reserved.
Authors & Co-Authors
Achterberg, Eric P.
United Kingdom, Southampton
University of Southampton
Moore, C. Mark
United Kingdom, Southampton
University of Southampton
Henson, Stephanie A.
United Kingdom, Southampton
University of Southampton
Steigenberger, Sebastian
United Kingdom, Southampton
University of Southampton
Stohl, Andreas
Norway, Skedsmokorset
Norsk Institutt for Luftforskning
Eckhardt, Sabine
Norway, Skedsmokorset
Norsk Institutt for Luftforskning
Avendano, Lizeth C.
United Kingdom, Southampton
University of Southampton
Cassidy, Michael
United Kingdom, Southampton
University of Southampton
Hembury, Debbie
United Kingdom, Southampton
University of Southampton
Klar, Jessica K.
United Kingdom, Southampton
University of Southampton
Lucas, Michael I.
South Africa, Cape Town
University of Cape Town
MacEy, Anna I.
United Kingdom, Southampton
University of Southampton
Marsay, Chris M.
United Kingdom, Southampton
University of Southampton
Ryan-Keogh, Thomas J.
United Kingdom, Southampton
University of Southampton
Statistics
Citations: 121
Authors: 14
Affiliations: 3
Identifiers
Doi:
10.1002/grl.50221
ISSN:
00948276
e-ISSN:
19448007