C
Claire F. Powell
Researcher at Centre for Environment, Fisheries and Aquaculture Science
Publications - 13
Citations - 591
Claire F. Powell is an academic researcher from Centre for Environment, Fisheries and Aquaculture Science. The author has contributed to research in topics: Sediment & Biogeochemistry. The author has an hindex of 9, co-authored 12 publications receiving 486 citations. Previous affiliations of Claire F. Powell include University of East Anglia & Imperial College London.
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Journal ArticleDOI
Fractional solubility of aerosol iron: Synthesis of a global-scale data set
TL;DR: This paper presented a global-scale compilation of total aerosol iron loading and estimated %FeS values for ∼1100 samples collected over the open ocean, the coastal ocean, and some continental sites, including a new data set from the Atlantic Ocean.
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Changes in iron speciation following a Saharan dust event in the tropical North Atlantic Ocean
Micha J.A. Rijkenberg,Claire F. Powell,Manuel Dall'Osto,Maria C. Nielsdóttir,Matthew D. Patey,Polly G. Hill,Alex R. Baker,Tim Jickells,Roy M. Harrison,Eric P. Achterberg +9 more
TL;DR: In the tropical Northeast Atlantic Ocean (12-30°N, 21-29°W) as part of the UK-SOLAS (Surface Ocean Lower Atmosphere Study) cruise Poseidon 332 (P332) in January-February 2006, the surface water DFe concentrations varied between 0.1 and 0.4 nM with an average of 0.22 ± 0.05 nM (n = 159).
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Fluxes and distribution of dissolved iron in the eastern (sub‐) tropical North Atlantic Ocean
Micha J.A. Rijkenberg,Sebastian Steigenberger,Claire F. Powell,Hans van Haren,Matthew D. Patey,Alex R. Baker,Eric P. Achterberg +6 more
TL;DR: Aeolian dust transport from the Saharan/Sahel desert regions is considered the dominant external input of iron (Fe) to the surface waters of the eastern (sub-) tropical North Atlantic Ocean as discussed by the authors.
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Impact of atmospheric deposition on the contrasting iron biogeochemistry of the North and South Atlantic Ocean
Simon J. Ussher,Simon J. Ussher,Eric P. Achterberg,Claire F. Powell,Alex R. Baker,Tim Jickells,Ricardo Torres,Paul J. Worsfold +7 more
TL;DR: In this article, the authors measured the dissolved iron (dFe) distributions and atmospheric and vertical subduction fluxes of dFe in the upper water column for two meridional transects of the Atlantic Ocean.
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Estimation of the Atmospheric Flux of Nutrients and Trace Metals to the Eastern Tropical North Atlantic Ocean
TL;DR: In this article, a dataset of measured concentrations of nutrients and trace metals in aerosol and rainfall over the Eastern Tropical North Atlantic (ETNA) was acquired and used to quantify the atmospheric input of ammonium, nitrate, soluble phosphorus and total iron, aluminium and manganese to the ETNA.