Data_Sheet_1_Pan-Arctic Ocean Primary Production Constrained by Turbulent Nitrate Fluxes.pdf
Arctic Ocean primary productivity is limited by light and inorganic nutrients. With sea ice cover declining in recent decades, nitrate limitation has been speculated to become more prominent. Although much has been learned about nitrate supply from general patterns of ocean circulation and water col...
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ftfrontimediafig:oai:figshare.com:article/12051933 2023-05-15T14:38:14+02:00 Data_Sheet_1_Pan-Arctic Ocean Primary Production Constrained by Turbulent Nitrate Fluxes.pdf Achim Randelhoff Johnna Holding Markus Janout Mikael Kristian Sejr Marcel Babin Jean-Éric Tremblay Matthew B. Alkire 2020-03-31T04:35:40Z https://doi.org/10.3389/fmars.2020.00150.s001 https://figshare.com/articles/Data_Sheet_1_Pan-Arctic_Ocean_Primary_Production_Constrained_by_Turbulent_Nitrate_Fluxes_pdf/12051933 unknown doi:10.3389/fmars.2020.00150.s001 https://figshare.com/articles/Data_Sheet_1_Pan-Arctic_Ocean_Primary_Production_Constrained_by_Turbulent_Nitrate_Fluxes_pdf/12051933 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Arctic turbulence nitrate flux primary production climate change sea ice Dataset 2020 ftfrontimediafig https://doi.org/10.3389/fmars.2020.00150.s001 2020-04-01T22:52:54Z Arctic Ocean primary productivity is limited by light and inorganic nutrients. With sea ice cover declining in recent decades, nitrate limitation has been speculated to become more prominent. Although much has been learned about nitrate supply from general patterns of ocean circulation and water column stability, a quantitative analysis requires dedicated turbulence measurements that have only started to accumulate in the last dozen years. Here we present new observations of the turbulent vertical nitrate flux in the Laptev Sea, Baffin Bay, and Young Sound (North-East Greenland), supplementing a compilation of 13 published estimates throughout the Arctic Ocean. Combining all flux estimates with a Pan-Arctic database of in situ measurements of nitrate concentration and density, we found the annual nitrate inventory to be largely determined by the strength of stratification and by bathymetry. Nitrate fluxes explained the observed regional patterns and magnitudes of both new primary production and particle export on annual scales. We argue that with few regional exceptions, vertical turbulent nitrate fluxes can be a reliable proxy of Arctic primary production accessible through autonomous and large-scale measurements. They may also provide a framework to assess nutrient limitation scenarios based on clear energetic and mass budget constraints resulting from turbulent mixing and freshwater flows. Dataset Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Climate change East Greenland Greenland laptev Laptev Sea Sea ice Frontiers: Figshare Arctic Arctic Ocean Laptev Sea Baffin Bay Greenland |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Arctic turbulence nitrate flux primary production climate change sea ice |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Arctic turbulence nitrate flux primary production climate change sea ice Achim Randelhoff Johnna Holding Markus Janout Mikael Kristian Sejr Marcel Babin Jean-Éric Tremblay Matthew B. Alkire Data_Sheet_1_Pan-Arctic Ocean Primary Production Constrained by Turbulent Nitrate Fluxes.pdf |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Arctic turbulence nitrate flux primary production climate change sea ice |
description |
Arctic Ocean primary productivity is limited by light and inorganic nutrients. With sea ice cover declining in recent decades, nitrate limitation has been speculated to become more prominent. Although much has been learned about nitrate supply from general patterns of ocean circulation and water column stability, a quantitative analysis requires dedicated turbulence measurements that have only started to accumulate in the last dozen years. Here we present new observations of the turbulent vertical nitrate flux in the Laptev Sea, Baffin Bay, and Young Sound (North-East Greenland), supplementing a compilation of 13 published estimates throughout the Arctic Ocean. Combining all flux estimates with a Pan-Arctic database of in situ measurements of nitrate concentration and density, we found the annual nitrate inventory to be largely determined by the strength of stratification and by bathymetry. Nitrate fluxes explained the observed regional patterns and magnitudes of both new primary production and particle export on annual scales. We argue that with few regional exceptions, vertical turbulent nitrate fluxes can be a reliable proxy of Arctic primary production accessible through autonomous and large-scale measurements. They may also provide a framework to assess nutrient limitation scenarios based on clear energetic and mass budget constraints resulting from turbulent mixing and freshwater flows. |
format |
Dataset |
author |
Achim Randelhoff Johnna Holding Markus Janout Mikael Kristian Sejr Marcel Babin Jean-Éric Tremblay Matthew B. Alkire |
author_facet |
Achim Randelhoff Johnna Holding Markus Janout Mikael Kristian Sejr Marcel Babin Jean-Éric Tremblay Matthew B. Alkire |
author_sort |
Achim Randelhoff |
title |
Data_Sheet_1_Pan-Arctic Ocean Primary Production Constrained by Turbulent Nitrate Fluxes.pdf |
title_short |
Data_Sheet_1_Pan-Arctic Ocean Primary Production Constrained by Turbulent Nitrate Fluxes.pdf |
title_full |
Data_Sheet_1_Pan-Arctic Ocean Primary Production Constrained by Turbulent Nitrate Fluxes.pdf |
title_fullStr |
Data_Sheet_1_Pan-Arctic Ocean Primary Production Constrained by Turbulent Nitrate Fluxes.pdf |
title_full_unstemmed |
Data_Sheet_1_Pan-Arctic Ocean Primary Production Constrained by Turbulent Nitrate Fluxes.pdf |
title_sort |
data_sheet_1_pan-arctic ocean primary production constrained by turbulent nitrate fluxes.pdf |
publishDate |
2020 |
url |
https://doi.org/10.3389/fmars.2020.00150.s001 https://figshare.com/articles/Data_Sheet_1_Pan-Arctic_Ocean_Primary_Production_Constrained_by_Turbulent_Nitrate_Fluxes_pdf/12051933 |
geographic |
Arctic Arctic Ocean Laptev Sea Baffin Bay Greenland |
geographic_facet |
Arctic Arctic Ocean Laptev Sea Baffin Bay Greenland |
genre |
Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Climate change East Greenland Greenland laptev Laptev Sea Sea ice |
genre_facet |
Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Climate change East Greenland Greenland laptev Laptev Sea Sea ice |
op_relation |
doi:10.3389/fmars.2020.00150.s001 https://figshare.com/articles/Data_Sheet_1_Pan-Arctic_Ocean_Primary_Production_Constrained_by_Turbulent_Nitrate_Fluxes_pdf/12051933 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2020.00150.s001 |
_version_ |
1766310352977395712 |