Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Simon J. Ussher"'
Autor:
Antony J. Birchill, Chelsey A. Baker, Neil J. Wyatt, Katsiaryna Pabortsava, Hugh J. Venables, C. Mark Moore, Isobel Turnbull, Angela Milne, Simon J. Ussher, Sophy Oliver, Adrian P. Martin
Publikováno v:
Communications Earth & Environment, Vol 5, Iss 1, Pp 1-10 (2024)
Abstract Scarcity of iron and manganese limits the efficiency of the biological carbon pump over large areas of the Southern Ocean. The importance of hydrothermal vents as a source of these micronutrients to the euphotic zone of the Southern Ocean is
Externí odkaz:
https://doaj.org/article/fe64e351a2074de7a6906bcfd285e0a7
Autor:
Minkang Zhi, Xi Zhang, Kai Zhang, Simon J. Ussher, Wenli Lv, Jie Li, Jian Gao, Yuqian Luo, Fan Meng
Publikováno v:
Ecotoxicology and Environmental Safety, Vol 211, Iss , Pp 111937- (2021)
In order to investigate the pollution characteristics of size-segregated particles and metal elements (MEs) after the Chinese Air Pollution Prevention Action Plan was released in 2013, an intensive field campaign was conducted in the suburban area of
Externí odkaz:
https://doaj.org/article/740eabd8227a4de1b5ab8f6984cbf21e
Autor:
Paul J. Worsfold, Eric P. Achterberg, Antony J. Birchill, Robert Clough, Ivo Leito, Maeve C. Lohan, Angela Milne, Simon J. Ussher
Publikováno v:
Frontiers in Marine Science, Vol 5 (2019)
A realistic estimation of uncertainty is an essential requirement for all analytical measurements. It is common practice, however, for the uncertainty estimate of a chemical measurement to be based on the instrumental precision associated with the an
Externí odkaz:
https://doaj.org/article/dd73bcb6168f499e991f9aead892466e
Publikováno v:
Talanta. 199:425-430
High quality observational data with a firm uncertainty assessment are essential for the proper validation of biogeochemical models for trace metals such as iron. Typically, concentrations of these metals are very low in oceanic waters (nM and sub nM
Autor:
Simon J. Ussher, Nealy Carr, Antony J. Birchill, Claire Mahaffey, Eric P. Achterberg, Matthew P. Humphreys, Kechen Zhu, Angela Milne, Maeve C. Lohan, Martha Gledhill
Publikováno v:
MARINE CHEMISTRY
We used a combined ion pairing - organic matter speciation model (NICA-Donnan) to predict the organic complexation of iron (Fe) at ambient pH and temperature in the Celtic Sea. We optimized our model by direct comparison with Fe speciation determined
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31e8f048e274ad5102cd937a7aaee83d
https://www.vliz.be/imisdocs/publications/70/371570.pdf
https://www.vliz.be/imisdocs/publications/70/371570.pdf
Autor:
Mark Moore, Isobel Turnbull, Adrian Martin, Chelsea Baker, Neil J. Wyatt, Antony J. Birchill, Simon J. Ussher, Angela Milne
Publikováno v:
Goldschmidt2021 abstracts.
Autor:
Silvia Pardo, Timothy J Smyth, Antony J. Birchill, Simon J. Ussher, Katrin Schmidt, Robert J. W. Brewin, Claire E. Widdicombe, Luca Polimene, Angus Atkinson, E. Malcolm S. Woodward, David G. Johns, James R. Clark, Anna E. Hickman, Angela Milne, Maeve C. Lohan, Glen A. Tarran
Continental margins are disproportionally important for global primary production, fisheries and CO2 uptake. However, across the Northeast Atlantic shelves, there has been an ongoing summertime decline of key biota-large diatoms, dinoflagellates and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad74ba74c9607e92a5f1920f63ca707f
https://eprints.soton.ac.uk/442303/
https://eprints.soton.ac.uk/442303/
Publikováno v:
Talanta. 221
Dimethyl sulfide (DMS) is the major biogenic volatile sulfur compound in surface seawater. Good quality DMS data with high temporal and spatial resolution are desirable for understanding reduced sulfur biogeochemistry. Here we present a fully automat
Autor:
Dennis J. McGillicuddy, Chris M. Marsay, Thomas M. Church, R.J. Johnson, Peter N. Sedwick, Andrew R. Bowie, Simon J. Ussher, Jay T. Cullen, Alessandro Tagliabue, B. M. Sohst, Maeve C. Lohan
Water-column data from seven cruises in 2007–2008 reveal pronounced temporal and spatial variations in the distribution of dissolved iron (DFe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee5fbdc33334588a079115379d79657a
https://eprints.soton.ac.uk/437778/
https://eprints.soton.ac.uk/437778/
Autor:
Peter N. Sedwick, Matthew P. Fishwick, Kristen N. Buck, Paul J. Worsfold, Maeve C. Lohan, Thomas M. Church, Simon J. Ussher
Publikováno v:
Marine Chemistry. 198:28-43
Atmospheric deposition is an important pathway by which bioactive trace metals are delivered to the surface ocean. The proportions of total aerosol trace metals that dissolve in seawater, and thus become available to biota, are not well constrained a