(Figure 2) Dissolved manganese concentrations during POLARSTERN Cruise ANT-XXIV/3
The first comprehensive dataset (492 samples) of dissolved Mn in the Southern Ocean shows extremely low values of 0.04 up to 0.64 nM in the surface waters and a subsurface maximum with an average concentration of 0.31 nM (n=20; S.D.=0.08 nM). The low Mn in surface waters correlates well with the nut...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.816962 2024-09-15T18:12:36+00:00 (Figure 2) Dissolved manganese concentrations during POLARSTERN Cruise ANT-XXIV/3 Middag, Rob de Baar, Hein J W Laan, Patrick Cai, P H van Ooijen, Jan C MEDIAN LATITUDE: -58.550186 * MEDIAN LONGITUDE: 0.938073 * SOUTH-BOUND LATITUDE: -69.400500 * WEST-BOUND LONGITUDE: -0.009700 * NORTH-BOUND LATITUDE: -42.338900 * EAST-BOUND LONGITUDE: 8.993400 * DATE/TIME START: 2008-02-13T18:55:00 * DATE/TIME END: 2008-03-12T04:22:00 * MINIMUM DEPTH, water: 3.6 m * MAXIMUM DEPTH, water: 5320.7 m 2011 text/tab-separated-values, 1980 data points https://doi.pangaea.de/10.1594/PANGAEA.816962 https://doi.org/10.1594/PANGAEA.816962 en eng PANGAEA Middag, Rob; van Slooten, C; de Baar, Hein J W; Laan, Patrick (2011): Dissolved aluminium in the Southern Ocean. Deep Sea Research Part II: Topical Studies in Oceanography, 58(25-26), 2647-2660, https://doi.org/10.1016/j.dsr2.2011.03.001 https://doi.pangaea.de/10.1594/PANGAEA.816962 https://doi.org/10.1594/PANGAEA.816962 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; Cai, P H; van Ooijen, Jan C (2011): Dissolved manganese in the Atlantic sector of the Southern Ocean. Deep Sea Research Part II: Topical Studies in Oceanography, 58(25-26), 2661-2677, https://doi.org/10.1016/j.dsr2.2010.10.043 ANT-XXIV/3 AWI 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 PS71 PS71/101-2 PS71/103-1 PS71/104-2 PS71/107-3 PS71/110-1 PS71/113-3 PS71/116-1 PS71/119-1 PS71/122-1 PS71/128-1 PS71/131-5 PS71/135-1 PS71/138-1 PS71/141-1 PS71/144-1 PS71/147-3 PS71/150-2 PS71/161-6 PS71/163-1 PS71/167-1 PS71/175-3 PS71/178-4 Quality flag South Atlantic Ocean Weddell Sea dataset 2011 ftpangaea https://doi.org/10.1594/PANGAEA.81696210.1016/j.dsr2.2010.10.04310.1016/j.dsr2.2011.03.001 2024-07-24T02:31:32Z The first comprehensive dataset (492 samples) of dissolved Mn in the Southern Ocean shows extremely low values of 0.04 up to 0.64 nM in the surface waters and a subsurface maximum with an average concentration of 0.31 nM (n=20; S.D.=0.08 nM). The low Mn in surface waters correlates well with the nutrients PO4 and NO3 and moderately well with Si(OH)4 and fluorescence. Furthermore, elevated concentrations of Mn in the surface layer coincide with elevated Fe and light transmission and decreased export (234Th/238U deficiency) and fluorescence. It appears that Mn is a factor of importance in partly explaining the HNLC conditions in the Southern Ocean, in conjunction with significant controls by the combination of Fe limitation and light limitation. No input of Mn from the continental margins was observed. This is ascribed to the protruding continental ice sheet that covers the shelf and shuts down the usual biological production, microbial breakdown and sedimentary geochemical cycling. The low concentrations of Mn in the deep ocean basins (0.07-0.23 nM) were quite uniform, but some elevations were observed. The highest deep concentrations of Mn were observed at the Bouvet Triple Junction region and coincided with high concentrations of Fe and are deemed to be from hydrothermal input. The deep basins on both sides of the ridge were affected by this input. In the deep Weddell Basin the input of Weddell Sea Bottom Water appears to be the source of the slightly elevated concentrations of Mn in this water layer. Dataset Ice Sheet International Polar Year IPY South Atlantic Ocean Southern Ocean Weddell Sea PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-0.009700,8.993400,-42.338900,-69.400500) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
ANT-XXIV/3 AWI 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 PS71 PS71/101-2 PS71/103-1 PS71/104-2 PS71/107-3 PS71/110-1 PS71/113-3 PS71/116-1 PS71/119-1 PS71/122-1 PS71/128-1 PS71/131-5 PS71/135-1 PS71/138-1 PS71/141-1 PS71/144-1 PS71/147-3 PS71/150-2 PS71/161-6 PS71/163-1 PS71/167-1 PS71/175-3 PS71/178-4 Quality flag South Atlantic Ocean Weddell Sea |
spellingShingle |
ANT-XXIV/3 AWI 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 PS71 PS71/101-2 PS71/103-1 PS71/104-2 PS71/107-3 PS71/110-1 PS71/113-3 PS71/116-1 PS71/119-1 PS71/122-1 PS71/128-1 PS71/131-5 PS71/135-1 PS71/138-1 PS71/141-1 PS71/144-1 PS71/147-3 PS71/150-2 PS71/161-6 PS71/163-1 PS71/167-1 PS71/175-3 PS71/178-4 Quality flag South Atlantic Ocean Weddell Sea Middag, Rob de Baar, Hein J W Laan, Patrick Cai, P H van Ooijen, Jan C (Figure 2) Dissolved manganese concentrations during POLARSTERN Cruise ANT-XXIV/3 |
topic_facet |
ANT-XXIV/3 AWI 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 PS71 PS71/101-2 PS71/103-1 PS71/104-2 PS71/107-3 PS71/110-1 PS71/113-3 PS71/116-1 PS71/119-1 PS71/122-1 PS71/128-1 PS71/131-5 PS71/135-1 PS71/138-1 PS71/141-1 PS71/144-1 PS71/147-3 PS71/150-2 PS71/161-6 PS71/163-1 PS71/167-1 PS71/175-3 PS71/178-4 Quality flag South Atlantic Ocean Weddell Sea |
description |
The first comprehensive dataset (492 samples) of dissolved Mn in the Southern Ocean shows extremely low values of 0.04 up to 0.64 nM in the surface waters and a subsurface maximum with an average concentration of 0.31 nM (n=20; S.D.=0.08 nM). The low Mn in surface waters correlates well with the nutrients PO4 and NO3 and moderately well with Si(OH)4 and fluorescence. Furthermore, elevated concentrations of Mn in the surface layer coincide with elevated Fe and light transmission and decreased export (234Th/238U deficiency) and fluorescence. It appears that Mn is a factor of importance in partly explaining the HNLC conditions in the Southern Ocean, in conjunction with significant controls by the combination of Fe limitation and light limitation. No input of Mn from the continental margins was observed. This is ascribed to the protruding continental ice sheet that covers the shelf and shuts down the usual biological production, microbial breakdown and sedimentary geochemical cycling. The low concentrations of Mn in the deep ocean basins (0.07-0.23 nM) were quite uniform, but some elevations were observed. The highest deep concentrations of Mn were observed at the Bouvet Triple Junction region and coincided with high concentrations of Fe and are deemed to be from hydrothermal input. The deep basins on both sides of the ridge were affected by this input. In the deep Weddell Basin the input of Weddell Sea Bottom Water appears to be the source of the slightly elevated concentrations of Mn in this water layer. |
format |
Dataset |
author |
Middag, Rob de Baar, Hein J W Laan, Patrick Cai, P H van Ooijen, Jan C |
author_facet |
Middag, Rob de Baar, Hein J W Laan, Patrick Cai, P H van Ooijen, Jan C |
author_sort |
Middag, Rob |
title |
(Figure 2) Dissolved manganese concentrations during POLARSTERN Cruise ANT-XXIV/3 |
title_short |
(Figure 2) Dissolved manganese concentrations during POLARSTERN Cruise ANT-XXIV/3 |
title_full |
(Figure 2) Dissolved manganese concentrations during POLARSTERN Cruise ANT-XXIV/3 |
title_fullStr |
(Figure 2) Dissolved manganese concentrations during POLARSTERN Cruise ANT-XXIV/3 |
title_full_unstemmed |
(Figure 2) Dissolved manganese concentrations during POLARSTERN Cruise ANT-XXIV/3 |
title_sort |
(figure 2) dissolved manganese concentrations during polarstern cruise ant-xxiv/3 |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.816962 https://doi.org/10.1594/PANGAEA.816962 |
op_coverage |
MEDIAN LATITUDE: -58.550186 * MEDIAN LONGITUDE: 0.938073 * SOUTH-BOUND LATITUDE: -69.400500 * WEST-BOUND LONGITUDE: -0.009700 * NORTH-BOUND LATITUDE: -42.338900 * EAST-BOUND LONGITUDE: 8.993400 * DATE/TIME START: 2008-02-13T18:55:00 * DATE/TIME END: 2008-03-12T04:22:00 * MINIMUM DEPTH, water: 3.6 m * MAXIMUM DEPTH, water: 5320.7 m |
long_lat |
ENVELOPE(-0.009700,8.993400,-42.338900,-69.400500) |
genre |
Ice Sheet International Polar Year IPY South Atlantic Ocean Southern Ocean Weddell Sea |
genre_facet |
Ice Sheet International Polar Year IPY South Atlantic Ocean Southern Ocean Weddell Sea |
op_source |
Supplement to: Middag, Rob; de Baar, Hein J W; Laan, Patrick; Cai, P H; van Ooijen, Jan C (2011): Dissolved manganese in the Atlantic sector of the Southern Ocean. Deep Sea Research Part II: Topical Studies in Oceanography, 58(25-26), 2661-2677, https://doi.org/10.1016/j.dsr2.2010.10.043 |
op_relation |
Middag, Rob; van Slooten, C; de Baar, Hein J W; Laan, Patrick (2011): Dissolved aluminium in the Southern Ocean. Deep Sea Research Part II: Topical Studies in Oceanography, 58(25-26), 2647-2660, https://doi.org/10.1016/j.dsr2.2011.03.001 https://doi.pangaea.de/10.1594/PANGAEA.816962 https://doi.org/10.1594/PANGAEA.816962 |
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.81696210.1016/j.dsr2.2010.10.04310.1016/j.dsr2.2011.03.001 |
_version_ |
1810450188071862272 |