(Appendix A) Dissolved manganese concentrations during POLARSTERN Cruise ARK-XXII/2
A total of 773 samples were analysed for dissolved manganese (Mn) in the Arctic Ocean aboard R.V. Polarstern during expedition ARK XXII/2 from 28 July until 07 October 2007 from Tromsø (Norway) to Bremerhaven. Concentrations of Mn were elevated in the surface layer with concentrations of up to 6 nM...
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Language: | English |
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PANGAEA
2011
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.816976 https://doi.org/10.1594/PANGAEA.816976 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.816976 |
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openpolar |
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Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Arctic Ocean ARK-XXII/2 Bottle number CTD/Rosette ultra clean CTD-UC DATE/TIME DEPTH water Elevation of event Event label GEOTRACES Global marine biogeochemical cycles of trace elements and their isotopes International Polar Year (2007-2008) IPY Latitude of event Longitude of event Manganese dissolved standard deviation Polarstern PS70/228-1 PS70/236-1 PS70/237-1 PS70/239-1 PS70/246-1 PS70/255-1 PS70/258-1 PS70/260-2 PS70/261-1 PS70/266-1 PS70/268-1 PS70/271-2 PS70/272-1 PS70/276-1 PS70/279-2 PS70/285-2 PS70/291-1 PS70/295-1 PS70/299-1 PS70/301-2 PS70/302-1 PS70/306-1 PS70/309-2 PS70/309-4 PS70/310-1 PS70/316-1 PS70/319-1 PS70/326-1 |
spellingShingle |
Arctic Ocean ARK-XXII/2 Bottle number CTD/Rosette ultra clean CTD-UC DATE/TIME DEPTH water Elevation of event Event label GEOTRACES Global marine biogeochemical cycles of trace elements and their isotopes International Polar Year (2007-2008) IPY Latitude of event Longitude of event Manganese dissolved standard deviation Polarstern PS70/228-1 PS70/236-1 PS70/237-1 PS70/239-1 PS70/246-1 PS70/255-1 PS70/258-1 PS70/260-2 PS70/261-1 PS70/266-1 PS70/268-1 PS70/271-2 PS70/272-1 PS70/276-1 PS70/279-2 PS70/285-2 PS70/291-1 PS70/295-1 PS70/299-1 PS70/301-2 PS70/302-1 PS70/306-1 PS70/309-2 PS70/309-4 PS70/310-1 PS70/316-1 PS70/319-1 PS70/326-1 Middag, Rob de Baar, Hein J W Laan, Patrick Klunder, Maarten B (Appendix A) Dissolved manganese concentrations during POLARSTERN Cruise ARK-XXII/2 |
topic_facet |
Arctic Ocean ARK-XXII/2 Bottle number CTD/Rosette ultra clean CTD-UC DATE/TIME DEPTH water Elevation of event Event label GEOTRACES Global marine biogeochemical cycles of trace elements and their isotopes International Polar Year (2007-2008) IPY Latitude of event Longitude of event Manganese dissolved standard deviation Polarstern PS70/228-1 PS70/236-1 PS70/237-1 PS70/239-1 PS70/246-1 PS70/255-1 PS70/258-1 PS70/260-2 PS70/261-1 PS70/266-1 PS70/268-1 PS70/271-2 PS70/272-1 PS70/276-1 PS70/279-2 PS70/285-2 PS70/291-1 PS70/295-1 PS70/299-1 PS70/301-2 PS70/302-1 PS70/306-1 PS70/309-2 PS70/309-4 PS70/310-1 PS70/316-1 PS70/319-1 PS70/326-1 |
description |
A total of 773 samples were analysed for dissolved manganese (Mn) in the Arctic Ocean aboard R.V. Polarstern during expedition ARK XXII/2 from 28 July until 07 October 2007 from Tromsø (Norway) to Bremerhaven. Concentrations of Mn were elevated in the surface layer with concentrations of up to 6 nM over the deep Basins and over 20 nM in the Laptev Sea. The general distribution of Mn through the water column is consistent with previous studies, but there are differences in the absolute concentrations that are most likely related to differences in sample area, sampling and filtration. The elevated concentrations of Mn in the surface layer are related to fresh water input. This was visible in the strong negative correlations observed between dissolved Mn and salinity. The correlation between Mn and salinity and the correlation between Mn and the quasi conservative trace water mass tracer PO4*, showed fluvial and melt water input and the Pacific and Atlantic origin of the surface waters. A large portion of the Mn delivered by the Arctic rivers is removed in the shelf seas and does not pass into the central basins. Most likely a benthic flux is at the origin of the elevated concentrations of Mn near the sediments in the Barents and Kara Seas. These elevated concentrations of Mn apparently affected the deep basins as well, as maxima in the concentrations of Mn were observed that corresponded with lowered transmission over the continental slope. A maximum in the concentration of Mn in the deep basin corresponded with anomalies in light transmission, potential temperature and dissolved iron, confirming the hydrothermal origin. The hydrothermal plume was observed throughout the Nansen Basin and over the deep Gakkel Ridge around 2500 m depth and a smaller plume was observed around 3200 m. The concentration of Mn at the Mn maximum around 2500 m depth decreased exponentially, consistent with a first order scavenging model. The concentrations of Mn were extremely low in the deep Makarov Basin (~0.05 nM) and slightly higher ... |
format |
Dataset |
author |
Middag, Rob de Baar, Hein J W Laan, Patrick Klunder, Maarten B |
author_facet |
Middag, Rob de Baar, Hein J W Laan, Patrick Klunder, Maarten B |
author_sort |
Middag, Rob |
title |
(Appendix A) Dissolved manganese concentrations during POLARSTERN Cruise ARK-XXII/2 |
title_short |
(Appendix A) Dissolved manganese concentrations during POLARSTERN Cruise ARK-XXII/2 |
title_full |
(Appendix A) Dissolved manganese concentrations during POLARSTERN Cruise ARK-XXII/2 |
title_fullStr |
(Appendix A) Dissolved manganese concentrations during POLARSTERN Cruise ARK-XXII/2 |
title_full_unstemmed |
(Appendix A) Dissolved manganese concentrations during POLARSTERN Cruise ARK-XXII/2 |
title_sort |
(appendix a) dissolved manganese concentrations during polarstern cruise ark-xxii/2 |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.816976 https://doi.org/10.1594/PANGAEA.816976 |
op_coverage |
MEDIAN LATITUDE: 83.228704 * MEDIAN LONGITUDE: 103.793227 * SOUTH-BOUND LATITUDE: 75.000500 * WEST-BOUND LONGITUDE: 33.950100 * NORTH-BOUND LATITUDE: 88.667500 * EAST-BOUND LONGITUDE: -135.034800 * DATE/TIME START: 2007-07-30T10:11:00 * DATE/TIME END: 2007-09-23T22:36:00 * MINIMUM DEPTH, water: -0.8 m * MAXIMUM DEPTH, water: 5200.6 m |
long_lat |
ENVELOPE(33.950100,-135.034800,88.667500,75.000500) |
genre |
Arctic Arctic Ocean International Polar Year IPY laptev Laptev Sea makarov basin Nansen Nansen Basin Tromsø |
genre_facet |
Arctic Arctic Ocean International Polar Year IPY laptev Laptev Sea makarov basin Nansen Nansen Basin Tromsø |
op_source |
Supplement to: Middag, Rob; de Baar, Hein J W; Laan, Patrick; Klunder, Maarten B (2011): Fluvial and hydrothermal input of manganese into the Arctic Ocean. Geochimica et Cosmochimica Acta, 75(9), 2393-2408, https://doi.org/10.1016/j.gca.2011.02.011 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.816976 https://doi.org/10.1594/PANGAEA.816976 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.81697610.1016/j.gca.2011.02.011 |
_version_ |
1810292557890977792 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.816976 2024-09-15T17:50:45+00:00 (Appendix A) Dissolved manganese concentrations during POLARSTERN Cruise ARK-XXII/2 Middag, Rob de Baar, Hein J W Laan, Patrick Klunder, Maarten B MEDIAN LATITUDE: 83.228704 * MEDIAN LONGITUDE: 103.793227 * SOUTH-BOUND LATITUDE: 75.000500 * WEST-BOUND LONGITUDE: 33.950100 * NORTH-BOUND LATITUDE: 88.667500 * EAST-BOUND LONGITUDE: -135.034800 * DATE/TIME START: 2007-07-30T10:11:00 * DATE/TIME END: 2007-09-23T22:36:00 * MINIMUM DEPTH, water: -0.8 m * MAXIMUM DEPTH, water: 5200.6 m 2011 text/tab-separated-values, 2979 data points https://doi.pangaea.de/10.1594/PANGAEA.816976 https://doi.org/10.1594/PANGAEA.816976 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.816976 https://doi.org/10.1594/PANGAEA.816976 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Middag, Rob; de Baar, Hein J W; Laan, Patrick; Klunder, Maarten B (2011): Fluvial and hydrothermal input of manganese into the Arctic Ocean. Geochimica et Cosmochimica Acta, 75(9), 2393-2408, https://doi.org/10.1016/j.gca.2011.02.011 Arctic Ocean ARK-XXII/2 Bottle number CTD/Rosette ultra clean CTD-UC DATE/TIME DEPTH water Elevation of event Event label GEOTRACES Global marine biogeochemical cycles of trace elements and their isotopes International Polar Year (2007-2008) IPY Latitude of event Longitude of event Manganese dissolved standard deviation Polarstern PS70/228-1 PS70/236-1 PS70/237-1 PS70/239-1 PS70/246-1 PS70/255-1 PS70/258-1 PS70/260-2 PS70/261-1 PS70/266-1 PS70/268-1 PS70/271-2 PS70/272-1 PS70/276-1 PS70/279-2 PS70/285-2 PS70/291-1 PS70/295-1 PS70/299-1 PS70/301-2 PS70/302-1 PS70/306-1 PS70/309-2 PS70/309-4 PS70/310-1 PS70/316-1 PS70/319-1 PS70/326-1 dataset 2011 ftpangaea https://doi.org/10.1594/PANGAEA.81697610.1016/j.gca.2011.02.011 2024-07-24T02:31:32Z A total of 773 samples were analysed for dissolved manganese (Mn) in the Arctic Ocean aboard R.V. Polarstern during expedition ARK XXII/2 from 28 July until 07 October 2007 from Tromsø (Norway) to Bremerhaven. Concentrations of Mn were elevated in the surface layer with concentrations of up to 6 nM over the deep Basins and over 20 nM in the Laptev Sea. The general distribution of Mn through the water column is consistent with previous studies, but there are differences in the absolute concentrations that are most likely related to differences in sample area, sampling and filtration. The elevated concentrations of Mn in the surface layer are related to fresh water input. This was visible in the strong negative correlations observed between dissolved Mn and salinity. The correlation between Mn and salinity and the correlation between Mn and the quasi conservative trace water mass tracer PO4*, showed fluvial and melt water input and the Pacific and Atlantic origin of the surface waters. A large portion of the Mn delivered by the Arctic rivers is removed in the shelf seas and does not pass into the central basins. Most likely a benthic flux is at the origin of the elevated concentrations of Mn near the sediments in the Barents and Kara Seas. These elevated concentrations of Mn apparently affected the deep basins as well, as maxima in the concentrations of Mn were observed that corresponded with lowered transmission over the continental slope. A maximum in the concentration of Mn in the deep basin corresponded with anomalies in light transmission, potential temperature and dissolved iron, confirming the hydrothermal origin. The hydrothermal plume was observed throughout the Nansen Basin and over the deep Gakkel Ridge around 2500 m depth and a smaller plume was observed around 3200 m. The concentration of Mn at the Mn maximum around 2500 m depth decreased exponentially, consistent with a first order scavenging model. The concentrations of Mn were extremely low in the deep Makarov Basin (~0.05 nM) and slightly higher ... Dataset Arctic Arctic Ocean International Polar Year IPY laptev Laptev Sea makarov basin Nansen Nansen Basin Tromsø PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(33.950100,-135.034800,88.667500,75.000500) |