Zobrazeno 1 - 10
of 666
pro vyhledávání: '"A. T. Townsend"'
Publikováno v:
Biogeosciences, Vol 21, Pp 2335-2354 (2024)
Ocean alkalinity enhancement (OAE) aims to increase atmospheric CO2 sequestration in the oceans through the acceleration of chemical rock weathering. This could be achieved by grinding rocks containing alkaline minerals and adding the rock powder to
Externí odkaz:
https://doaj.org/article/38b688c76e604d958f3a24f0adb215bb
Autor:
A. R. Bowie, P. van der Merwe, F. Quéroué, T. Trull, M. Fourquez, F. Planchon, G. Sarthou, F. Chever, A. T. Townsend, I. Obernosterer, J.-B. Sallée, S. Blain
Publikováno v:
Biogeosciences, Vol 12, Iss 14, Pp 4421-4445 (2015)
Iron availability in the Southern Ocean controls phytoplankton growth, community composition and the uptake of atmospheric CO2 by the biological pump. The KEOPS-2 (KErguelen Ocean and Plateau compared Study 2) "process study", took place around the K
Externí odkaz:
https://doaj.org/article/49437021f31344d5ac65c7411bcaa3a6
Autor:
F. Quéroué, G. Sarthou, H. F. Planquette, E. Bucciarelli, F. Chever, P. van der Merwe, D. Lannuzel, A. T. Townsend, M. Cheize, S. Blain, F. d'Ovidio, A. R. Bowie
Publikováno v:
Biogeosciences, Vol 12, Iss 12, Pp 3869-3883 (2015)
Dissolved Fe (dFe) concentrations were measured in the upper 1300 m of the water column in the vicinity of the Kerguelen Islands as part of the second KErguelen Ocean Plateau compared Study (KEOPS2). Concentrations ranged from 0.06 nmol L−1 in offs
Externí odkaz:
https://doaj.org/article/688a5065f1724de0964578bb5c25a940
Autor:
P. van der Merwe, A. R. Bowie, F. Quéroué, L. Armand, S. Blain, F. Chever, D. Davies, F. Dehairs, F. Planchon, G. Sarthou, A. T. Townsend, T. W. Trull
Publikováno v:
Biogeosciences, Vol 12, Iss 3, Pp 739-755 (2015)
The KEOPS2 project aims to elucidate the role of natural Fe fertilisation on biogeochemical cycles and ecosystem functioning, including quantifying the sources and processes by which iron is delivered in the vicinity of the Kerguelen Archipelago, Sou
Externí odkaz:
https://doaj.org/article/ebdfc56767fe4a8b86ce2a8e20af5500
Autor:
Jennifer J. Lentz, James T. Townsend
Publikováno v:
Frontiers in Psychology, Vol 13 (2022)
The purpose of this study is to take preliminary steps to unify psychoacoustic techniques with reaction-time methodologies to address the perceptual mechanisms responsible for the detection of one vs. multiple sounds. We measured auditory redundancy
Externí odkaz:
https://doaj.org/article/4eaedfae9dc0454f9420043f220de62f
Autor:
Abigail J.R. Smith, Talitha Nelson, Lavenia Ratnarajah, Cristina Genovese, Karen Westwood, Thomas M. Holmes, Matthew Corkill, Ashley T. Townsend, Elanor Bell, Kathrin Wuttig, Delphine Lannuzel
Publikováno v:
Frontiers in Marine Science, Vol 9 (2022)
The availability of iron (Fe) to marine microbial communities is enhanced through complexation by ligands. In Fe limited environments, measuring the distribution and identifying the likely sources of ligands is therefore central to understanding the
Externí odkaz:
https://doaj.org/article/d058e808399e48ccae37d3ba7700ab76
Autor:
Luke T. Townsend, Kurt F. Smith, Ellen H. Winstanley, Katherine Morris, Olwen Stagg, J. Frederick W. Mosselmans, Francis R. Livens, Liam Abrahamsen-Mills, Richard Blackham, Samuel Shaw
Publikováno v:
Minerals, Vol 12, Iss 2, p 165 (2022)
Neptunium (237Np) is an important radionuclide in the nuclear fuel cycle in areas such as effluent treatment and the geodisposal of radioactive waste. Due to neptunium’s redox sensitivity and its tendency to adsorb strongly to mineral phases, such
Externí odkaz:
https://doaj.org/article/92c4cc7374eb4b4cb4fa0ae0fbed7245
Autor:
Malin C. J. Dixon Wilkins, Clémence Gausse, Luke T. Townsend, Laura J. Gardner, Claire L. Corkhill
Publikováno v:
Ceramics; Volume 5; Issue 4; Pages: 1035-1050
The behaviour of Ce-containing zirconolites in hot isostatically pressed (HIPed) materials is complex, characterised by redox interactions between the metallic HIP canister that result in reduction of Ce4+ to Ce3+. In this work, a glass–ceramic of
Publikováno v:
Child and Adolescent Social Work Journal. 40:255-270
Publikováno v:
Frontiers in Marine Science, Vol 7 (2020)
Thorium (Th) isotopes were applied to quantify the supply of lithogenic inputs from the Kerguelen Plateau to the Southern Ocean. The dissolved concentrations of 232Th and 230Th were measured following a novel pre-concentration method using the Nobias
Externí odkaz:
https://doaj.org/article/5e5a260d24804f9b9066d1e1c14d10f2