Rachel Shelley

University of East Anglia

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William M. Landing

Florida State University

Géraldine Sarthou

Institut Universitaire Européen de la Mer

Hélène Planquette

National Council for Scientific Research

Jan‐Lukas Menzel Barraqueta

Stellenbosch University

Marie Cheize

Laboratoire des Sciences de l'Environnement Marin

Julia Boutorh

Laboratoire des Sciences de l'Environnement Marin

Pascale Lherminier

Ifremer

Arthur Gourain

University of Liverpool

G. Rohr

Sandia National Laboratories

Alex R. Baker

University of East Anglia

Cooperative Institutions

Centre National de la Recherche Scientifique

Institut de Recherche pour le Développement

Institut Universitaire Européen de la Mer

Ifremer

Université de Bretagne Occidentale

Woods Hole Oceanographic Institution

Laboratoire des Sciences de l'Environnement Marin

National Oceanography Centre

University of Southampton

Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung

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Recent Rainfall and Aerosol Chemistry From Bermuda

AGU Fall Meeting Abstracts (2014)

William M. Landing Rachel Shelley David Kadko

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Tracing Anthropogenic Aerosol Trace Metal Sources in the North Atlantic Ocean Using Pb, Ni and Zn Isotopes

Goldschmidt Abstracts (2020)

Xingchao Zhang Nolwenn Lemaitre Jörg Rickli Tim Jesper Suhrhoff Rachel Shelley

Tracing

Trace metal

TRACE (psycholinguistics)

10.46427/gold2020.3137

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Dissolved scandium, yttrium, and lanthanum in the surface waters of the North Atlantic: Potential use as an indicator of scavenging intensity

Journal of Geophysical Research Oceans (2017)

Claire P. Till Rachel Shelley William M. Landing Kenneth W. Bruland

Abstract Recent work has begun to elucidate the biogeochemical cycling of scandium (Sc) in the open ocean, but so far no surface distribution data have been reported of dissolved Sc, and no basin‐scale surface distributions have been reported of yttrium (Y) or lanthanum (La). This work presents basin‐wide surface Sc, Y, and La data in a section across the North Atlantic subtropical gyre (2011 GEOTRACES GA03) and investigates the potential utility of these distributions. This work uses dissolved and aerosol concentration data for La and Sc to estimate their surface ocean residence times in both the center of the oligotrophic gyre and near the African coastline. This work additionally shows that the surface distribution of Sc in the North Atlantic correlates with the shape of the gyre as inferred by isotherm depth, with lower Sc concentrations at the gyre boundaries. This pattern suggests that Sc could be drawn down by the elevated particle flux at the gyre boundaries. In this case, Sc removal could be used as an indicator of scavenging intensity. In order to account for variable input of Sc to the surface ocean, we propose normalizing the Sc distribution to that of Y or La, which are much less particle reactive and are input via dust to the surface North Atlantic in constant ratios with Sc. Such normalization improves the correlation with isotherm depth. We propose that the variations in dissolved Y/Sc and La/Sc ratios may be due to preferential Sc scavenging and could therefore indicate scavenging intensity.

Scavenging

Biogeochemical Cycle

Geotraces

10.1002/2017jc012696

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Citations (12)

A novel tracer technique to quantify the atmospheric flux of trace elements to remote ocean regions

Journal of Geophysical Research Oceans (2015)

David Kadko William M. Landing Rachel Shelley

Abstract Atmospheric input into the global ocean constitutes an important budgetary component of numerous chemical species and plays a key role in controlling biogeochemical processes in the ocean. Assessment of this input is difficult, however, because measurements of deposition rates to the ocean, particularly in remote areas, are rare and susceptible to problems of temporal and spatial variability. While the collection and analysis of aerosol samples is somewhat routine, the chemical concentration data collected from ship board or land‐based aerosol samplers in and of themselves cannot yield the deposition flux of trace elements; a method is required to transform concentration measurements into flux. The ability to derive the atmospheric flux of 7 Be from its ocean inventory provides a key linkage between the atmospheric concentration of chemical species and their deposition to the ocean. We have demonstrated that estimates of the atmospheric flux of trace elements (TEs) can be made by multiplying the ocean inventory of 7 Be x [TE/ 7 Be] ratio in bulk aerosols. Flux estimates for trace elements made by the 7 Be ocean inventory method were comparable to fluxes derived from rain samples collected on the island of Bermuda. The situation at Bermuda allows such testing to be made, where ocean‐based methods can be calibrated by convenient land locations. Our results suggest that this method would be useful for remote areas where fixed sampling stations do not exist; that is, the majority of the global ocean.

TRACER

Biogeochemical Cycle

Deposition

Trace gas

10.1002/2014jc010314

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Citations (42)

High resolution dissolved and dissolvable aluminum measurements along the GEOVIDE section (GEOTRACES section GA01)

American Geophysical Union eBooks (2016)

Eric P. Achterberg Jan‐Lukas Menzel Barraqueta Christian Schlösser Hélène Planquette Marie Cheize

Section (typography)

Geotraces

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Aerosol Organic Matter-Trace Metal Relationships Revealed by Ultra-High Resolution Mass Spectrometry

AGU Fall Meeting Abstracts (2011)

Andrew S. Wozniak Rachel L. Sleighter Peter L. Morton William M. Landing Rachel Shelley

Trace metal

TRACE (psycholinguistics)

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Aerosol water soluble organic matter characteristics over the North Atlantic Ocean: Implications for iron-binding ligands and iron solubility

Marine Chemistry (2014)

Andrew S. Wozniak Rachel Shelley Stephanie D. McElhenie William M. Landing Patrick G. Hatcher

Geotraces

10.1016/j.marchem.2014.11.002

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Citations (58)

Resonance Parameters of 57Fe

Springer eBooks (1983)

G. Rohr A. Brusegan F. Corvi Rachel Shelley Theo van Veen

Sample (material)

10.1007/978-94-009-7099-1_27

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Citations (2)

High resolution neutron capture and total cross section measurements of⁵⁰Cr,⁵²Cr and⁵³Cr

Radiation Effects (1986)

A. Brusegan R. Buyl F. Corvi L. Mewissen F. Poortmans

Abstract Abstract High resolution neutron capture and transmission measurements were carried out at the 150 MeV Geel linac (GELINA) on the separated isotopes 50Cr, 52Cr and 53Cr. The data sets were atialysed by means of the TACASI, FANAC, FANAL and MULTI computer programs. The analysis of the capture data was completed up to 300, 500 and 200 keV resp. for the three isotopes 50,52,53Cr. The transmission data were analysed resp. up to 800, 500 and 200 keV. The resonance parameters obtained are compared with recent results of other laboratories1.5.

Section (typography)

10.1080/00337578608207476

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Citations (19)

Revised Supplementary Material 8 Feb 2018

Rachel Shelley

10.5194/bg-2017-415-ac5

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