Regional patterns in current and future export production in the central Arctic Ocean quantified from nitrate fluxes
Source: Geophysical Research Letters, doi:10.1002/2016GL070252 Due to severe nutrient and light limitation, the central Arctic Ocean has been characterized as a region of low primary productivity, with high retention of carbon in the surface waters. Using an in-depth analysis of published and new me...
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Online Access: | https://hdl.handle.net/10037/10679 https://doi.org/10.1002/2016GL070252 |
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ftunivtroemsoe:oai:munin.uit.no:10037/10679 2023-05-15T14:25:35+02:00 Regional patterns in current and future export production in the central Arctic Ocean quantified from nitrate fluxes Randelhoff, Achim Guthrie, John D. 2016-08-24 https://hdl.handle.net/10037/10679 https://doi.org/10.1002/2016GL070252 eng eng American Geophysical Union Geophysical Research Letters Randelhoff, A., and J. D. Guthrie (2016), Regional patterns in current and future export production in the central Arctic Ocean quantified from nitrate fluxes, Geophys. Res. Lett., 43, 8600–8608, doi:10.1002/2016GL070252 FRIDAID 1394742 doi:10.1002/2016GL070252 0094-8276 1944-8007 https://hdl.handle.net/10037/10679 openAccess VDP::Matematikk og Naturvitenskap: 400 VDP::Mathematics and natural science: 400 Journal article Tidsskriftartikkel Peer reviewed 2016 ftunivtroemsoe https://doi.org/10.1002/2016GL070252 2021-06-25T17:55:08Z Source: Geophysical Research Letters, doi:10.1002/2016GL070252 Due to severe nutrient and light limitation, the central Arctic Ocean has been characterized as a region of low primary productivity, with high retention of carbon in the surface waters. Using an in-depth analysis of published and new measurements of turbulent microstructure and high-resolution profiles of nitrate concentration, we reassess the vertical supply of nitrate to the Polar Mixed Layer and the associated export of particulate organic matter across the nitracline. We estimate annual export production to be approximately 1.5–3 g C m−2, but regional differences in both current and future potential of export production are large, with the eastern Arctic being least constrained by vertical nutrient supply and the western Arctic the most. Future changes in export production are assessed using a 1-D budget model; increases in the Atlantic sector are possibly compensated by decreases in the rest of the central Arctic Ocean such that the net change might be insignificant. Article in Journal/Newspaper Arctic Arctic Arctic Ocean University of Tromsø: Munin Open Research Archive Arctic Arctic Ocean Geophysical Research Letters 43 16 8600 8608 |
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University of Tromsø: Munin Open Research Archive |
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ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400 VDP::Mathematics and natural science: 400 |
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VDP::Matematikk og Naturvitenskap: 400 VDP::Mathematics and natural science: 400 Randelhoff, Achim Guthrie, John D. Regional patterns in current and future export production in the central Arctic Ocean quantified from nitrate fluxes |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400 VDP::Mathematics and natural science: 400 |
description |
Source: Geophysical Research Letters, doi:10.1002/2016GL070252 Due to severe nutrient and light limitation, the central Arctic Ocean has been characterized as a region of low primary productivity, with high retention of carbon in the surface waters. Using an in-depth analysis of published and new measurements of turbulent microstructure and high-resolution profiles of nitrate concentration, we reassess the vertical supply of nitrate to the Polar Mixed Layer and the associated export of particulate organic matter across the nitracline. We estimate annual export production to be approximately 1.5–3 g C m−2, but regional differences in both current and future potential of export production are large, with the eastern Arctic being least constrained by vertical nutrient supply and the western Arctic the most. Future changes in export production are assessed using a 1-D budget model; increases in the Atlantic sector are possibly compensated by decreases in the rest of the central Arctic Ocean such that the net change might be insignificant. |
format |
Article in Journal/Newspaper |
author |
Randelhoff, Achim Guthrie, John D. |
author_facet |
Randelhoff, Achim Guthrie, John D. |
author_sort |
Randelhoff, Achim |
title |
Regional patterns in current and future export production in the central Arctic Ocean quantified from nitrate fluxes |
title_short |
Regional patterns in current and future export production in the central Arctic Ocean quantified from nitrate fluxes |
title_full |
Regional patterns in current and future export production in the central Arctic Ocean quantified from nitrate fluxes |
title_fullStr |
Regional patterns in current and future export production in the central Arctic Ocean quantified from nitrate fluxes |
title_full_unstemmed |
Regional patterns in current and future export production in the central Arctic Ocean quantified from nitrate fluxes |
title_sort |
regional patterns in current and future export production in the central arctic ocean quantified from nitrate fluxes |
publisher |
American Geophysical Union |
publishDate |
2016 |
url |
https://hdl.handle.net/10037/10679 https://doi.org/10.1002/2016GL070252 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Arctic Ocean |
op_relation |
Geophysical Research Letters Randelhoff, A., and J. D. Guthrie (2016), Regional patterns in current and future export production in the central Arctic Ocean quantified from nitrate fluxes, Geophys. Res. Lett., 43, 8600–8608, doi:10.1002/2016GL070252 FRIDAID 1394742 doi:10.1002/2016GL070252 0094-8276 1944-8007 https://hdl.handle.net/10037/10679 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1002/2016GL070252 |
container_title |
Geophysical Research Letters |
container_volume |
43 |
container_issue |
16 |
container_start_page |
8600 |
op_container_end_page |
8608 |
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1766298019661086720 |