The biogeochemical impact of glacial meltwater from Southwest Greenland
Biogeochemical cycling in high-latitude regions has a disproportionate impact on global nutrient budgets. Here, we introduce a holistic, multi-disciplinary framework for elucidating the influence of glacial meltwaters, shelf currents, and biological production on biogeochemical cycling in high-latit...
Published in: | Progress in Oceanography |
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Format: | Article in Journal/Newspaper |
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2019
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Online Access: | http://nora.nerc.ac.uk/id/eprint/524021/ https://nora.nerc.ac.uk/id/eprint/524021/1/Hendry-2019-author-formatted-FINAL.pdf https://doi.org/10.1016/j.pocean.2019.102126 |
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ftnerc:oai:nora.nerc.ac.uk:524021 2023-12-24T10:17:13+01:00 The biogeochemical impact of glacial meltwater from Southwest Greenland Hendry, Katharine R. Huvenne, Veerle A.I. Robinson, Laura F. Annett, Amber Badger, Marcus Jacobel, Allison W. Ng, Hong Chin Opher, Jacob Pickering, Rebecca A. Taylor, Michelle L. Bates, Stephanie L. Cooper, Adam Cushman, Grace G. Goodwin, Claire Hoy, Shannon Rowland, George Samperiz, Ana Williams, James A. Achterberg, Eric P. Arrowsmith, Carol Brearley, J. Alexander Henley, Sian F. Krause, Jeffrey W. Leng, Melanie J. Li, Tao McManus, Jerry F. Meredith, Michael P. Perkins, Rupert Woodward, E. Malcolm S. 2019-09 text http://nora.nerc.ac.uk/id/eprint/524021/ https://nora.nerc.ac.uk/id/eprint/524021/1/Hendry-2019-author-formatted-FINAL.pdf https://doi.org/10.1016/j.pocean.2019.102126 en eng Elsevier https://nora.nerc.ac.uk/id/eprint/524021/1/Hendry-2019-author-formatted-FINAL.pdf Hendry, Katharine R.; Huvenne, Veerle A.I. orcid:0000-0001-7135-6360 Robinson, Laura F.; Annett, Amber; Badger, Marcus; Jacobel, Allison W.; Ng, Hong Chin; Opher, Jacob orcid:0000-0002-2092-0248 Pickering, Rebecca A.; Taylor, Michelle L.; Bates, Stephanie L.; Cooper, Adam; Cushman, Grace G.; Goodwin, Claire; Hoy, Shannon; Rowland, George; Samperiz, Ana; Williams, James A.; Achterberg, Eric P.; Arrowsmith, Carol; Brearley, J. Alexander orcid:0000-0003-3700-8017 Henley, Sian F.; Krause, Jeffrey W.; Leng, Melanie J. orcid:0000-0003-1115-5166 Li, Tao; McManus, Jerry F.; Meredith, Michael P. orcid:0000-0002-7342-7756 Perkins, Rupert; Woodward, E. Malcolm S. 2019 The biogeochemical impact of glacial meltwater from Southwest Greenland. Progress in Oceanography, 176, 102126. https://doi.org/10.1016/j.pocean.2019.102126 <https://doi.org/10.1016/j.pocean.2019.102126> cc_by_nc_nd_4 Publication - Article PeerReviewed 2019 ftnerc https://doi.org/10.1016/j.pocean.2019.102126 2023-11-24T00:03:12Z Biogeochemical cycling in high-latitude regions has a disproportionate impact on global nutrient budgets. Here, we introduce a holistic, multi-disciplinary framework for elucidating the influence of glacial meltwaters, shelf currents, and biological production on biogeochemical cycling in high-latitude continental margins, with a focus on the silica cycle. Our findings highlight the impact of significant glacial discharge on nutrient supply to shelf and slope waters, as well as surface and benthic production in these regions, over a range of timescales from days to thousands of years. Whilst biological uptake in fjords and strong diatom activity in coastal waters maintains low dissolved silicon concentrations in surface waters, we find important but spatially heterogeneous additions of particulates into the system, which are transported rapidly away from the shore. We expect the glacially-derived particles – together with biogenic silica tests – to be cycled rapidly through shallow sediments, resulting in a strong benthic flux of dissolved silicon. Entrainment of this benthic silicon into boundary currents may supply an important source of this key nutrient into the Labrador Sea, and is also likely to recirculate back into the deep fjords inshore. This study illustrates how geochemical and oceanographic analyses can be used together to probe further into modern nutrient cycling in this region, as well as the palaeoclimatological approaches to investigating changes in glacial meltwater discharge through time, especially during periods of rapid climatic change in the Late Quaternary. Article in Journal/Newspaper Greenland Labrador Sea Natural Environment Research Council: NERC Open Research Archive Greenland Progress in Oceanography 176 102126 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
Biogeochemical cycling in high-latitude regions has a disproportionate impact on global nutrient budgets. Here, we introduce a holistic, multi-disciplinary framework for elucidating the influence of glacial meltwaters, shelf currents, and biological production on biogeochemical cycling in high-latitude continental margins, with a focus on the silica cycle. Our findings highlight the impact of significant glacial discharge on nutrient supply to shelf and slope waters, as well as surface and benthic production in these regions, over a range of timescales from days to thousands of years. Whilst biological uptake in fjords and strong diatom activity in coastal waters maintains low dissolved silicon concentrations in surface waters, we find important but spatially heterogeneous additions of particulates into the system, which are transported rapidly away from the shore. We expect the glacially-derived particles – together with biogenic silica tests – to be cycled rapidly through shallow sediments, resulting in a strong benthic flux of dissolved silicon. Entrainment of this benthic silicon into boundary currents may supply an important source of this key nutrient into the Labrador Sea, and is also likely to recirculate back into the deep fjords inshore. This study illustrates how geochemical and oceanographic analyses can be used together to probe further into modern nutrient cycling in this region, as well as the palaeoclimatological approaches to investigating changes in glacial meltwater discharge through time, especially during periods of rapid climatic change in the Late Quaternary. |
format |
Article in Journal/Newspaper |
author |
Hendry, Katharine R. Huvenne, Veerle A.I. Robinson, Laura F. Annett, Amber Badger, Marcus Jacobel, Allison W. Ng, Hong Chin Opher, Jacob Pickering, Rebecca A. Taylor, Michelle L. Bates, Stephanie L. Cooper, Adam Cushman, Grace G. Goodwin, Claire Hoy, Shannon Rowland, George Samperiz, Ana Williams, James A. Achterberg, Eric P. Arrowsmith, Carol Brearley, J. Alexander Henley, Sian F. Krause, Jeffrey W. Leng, Melanie J. Li, Tao McManus, Jerry F. Meredith, Michael P. Perkins, Rupert Woodward, E. Malcolm S. |
spellingShingle |
Hendry, Katharine R. Huvenne, Veerle A.I. Robinson, Laura F. Annett, Amber Badger, Marcus Jacobel, Allison W. Ng, Hong Chin Opher, Jacob Pickering, Rebecca A. Taylor, Michelle L. Bates, Stephanie L. Cooper, Adam Cushman, Grace G. Goodwin, Claire Hoy, Shannon Rowland, George Samperiz, Ana Williams, James A. Achterberg, Eric P. Arrowsmith, Carol Brearley, J. Alexander Henley, Sian F. Krause, Jeffrey W. Leng, Melanie J. Li, Tao McManus, Jerry F. Meredith, Michael P. Perkins, Rupert Woodward, E. Malcolm S. The biogeochemical impact of glacial meltwater from Southwest Greenland |
author_facet |
Hendry, Katharine R. Huvenne, Veerle A.I. Robinson, Laura F. Annett, Amber Badger, Marcus Jacobel, Allison W. Ng, Hong Chin Opher, Jacob Pickering, Rebecca A. Taylor, Michelle L. Bates, Stephanie L. Cooper, Adam Cushman, Grace G. Goodwin, Claire Hoy, Shannon Rowland, George Samperiz, Ana Williams, James A. Achterberg, Eric P. Arrowsmith, Carol Brearley, J. Alexander Henley, Sian F. Krause, Jeffrey W. Leng, Melanie J. Li, Tao McManus, Jerry F. Meredith, Michael P. Perkins, Rupert Woodward, E. Malcolm S. |
author_sort |
Hendry, Katharine R. |
title |
The biogeochemical impact of glacial meltwater from Southwest Greenland |
title_short |
The biogeochemical impact of glacial meltwater from Southwest Greenland |
title_full |
The biogeochemical impact of glacial meltwater from Southwest Greenland |
title_fullStr |
The biogeochemical impact of glacial meltwater from Southwest Greenland |
title_full_unstemmed |
The biogeochemical impact of glacial meltwater from Southwest Greenland |
title_sort |
biogeochemical impact of glacial meltwater from southwest greenland |
publisher |
Elsevier |
publishDate |
2019 |
url |
http://nora.nerc.ac.uk/id/eprint/524021/ https://nora.nerc.ac.uk/id/eprint/524021/1/Hendry-2019-author-formatted-FINAL.pdf https://doi.org/10.1016/j.pocean.2019.102126 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Labrador Sea |
genre_facet |
Greenland Labrador Sea |
op_relation |
https://nora.nerc.ac.uk/id/eprint/524021/1/Hendry-2019-author-formatted-FINAL.pdf Hendry, Katharine R.; Huvenne, Veerle A.I. orcid:0000-0001-7135-6360 Robinson, Laura F.; Annett, Amber; Badger, Marcus; Jacobel, Allison W.; Ng, Hong Chin; Opher, Jacob orcid:0000-0002-2092-0248 Pickering, Rebecca A.; Taylor, Michelle L.; Bates, Stephanie L.; Cooper, Adam; Cushman, Grace G.; Goodwin, Claire; Hoy, Shannon; Rowland, George; Samperiz, Ana; Williams, James A.; Achterberg, Eric P.; Arrowsmith, Carol; Brearley, J. Alexander orcid:0000-0003-3700-8017 Henley, Sian F.; Krause, Jeffrey W.; Leng, Melanie J. orcid:0000-0003-1115-5166 Li, Tao; McManus, Jerry F.; Meredith, Michael P. orcid:0000-0002-7342-7756 Perkins, Rupert; Woodward, E. Malcolm S. 2019 The biogeochemical impact of glacial meltwater from Southwest Greenland. Progress in Oceanography, 176, 102126. https://doi.org/10.1016/j.pocean.2019.102126 <https://doi.org/10.1016/j.pocean.2019.102126> |
op_rights |
cc_by_nc_nd_4 |
op_doi |
https://doi.org/10.1016/j.pocean.2019.102126 |
container_title |
Progress in Oceanography |
container_volume |
176 |
container_start_page |
102126 |
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1786205189182586880 |