Mercury in the North Atlantic and Arctic Oceans - results of the 2014 GEOTRACES GEOVIDE & 2015 GEOTRACES TransArc II cruises.
We will present the combined results of the French GEOTRACES GEOVIDE cruise in the North Atlantic Ocean and the 2015 German GEOTRACES cruise TransArc II in the central Arctic Ocean. Research vessel "Pourquoi pas?" sailed on May 15th from Lisbon to Greenland to arrive in Newfoundland on Jun...
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ftawi:oai:epic.awi.de:40414 2023-05-15T14:27:24+02:00 Mercury in the North Atlantic and Arctic Oceans - results of the 2014 GEOTRACES GEOVIDE & 2015 GEOTRACES TransArc II cruises. Heimbürger, Lars-Eric Cossa, Daniel Rijkenberg, M. J. A. Sarthou, G. Rutgers v. d. Loeff, Michiel Sunderland, E.M. Sonke, Jeroen E. 2016-02-22 https://epic.awi.de/id/eprint/40414/ https://hdl.handle.net/10013/epic.47485 unknown Heimbürger, L. E. , Cossa, D. , Rijkenberg, M. J. A. , Sarthou, G. , Rutgers v. d. Loeff, M. orcid:0000-0003-1393-3742 , Sunderland, E. and Sonke, J. E. (2016) Mercury in the North Atlantic and Arctic Oceans - results of the 2014 GEOTRACES GEOVIDE & 2015 GEOTRACES TransArc II cruises. , AGU Ocean Sciences Meeting, New Orleans, USA, 22 February 2016 - 26 February 2016 . hdl:10013/epic.47485 EPIC3AGU Ocean Sciences Meeting, New Orleans, USA, 2016-02-22-2016-02-26 Conference notRev 2016 ftawi 2021-12-24T15:41:24Z We will present the combined results of the French GEOTRACES GEOVIDE cruise in the North Atlantic Ocean and the 2015 German GEOTRACES cruise TransArc II in the central Arctic Ocean. Research vessel "Pourquoi pas?" sailed on May 15th from Lisbon to Greenland to arrive in Newfoundland on June 30th 2014, and icebreaker "Polarstern" sailed on August 17th from Tromsoe to explore the Nansen, the Amundsen and the Makarov basins, to arrive in Bremerhaven on October 15th 2015. Total mercury was sampled using ultra-trace clean rosettes and determined on board. In the Atlantic Ocean, surface waters of the Gulf Stream are cooled down as they travel north, and mix at the same time with waters exiting the Arctic Ocean via Fram Strait. These cool and dense surface waters dive to depth in the Greenland and Labrador seas. The North Atlantic Ocean predominantly receives Hg via atmospheric deposition from Europe and North America where industrial Hg emissions peaked in the 1970s. The Hg inputs to the Arctic Ocean are less well-constrained if not unknown. The current debate opposes a primary atmospheric with a river-dominated scenario. We find consistent surface depleted profiles in the North Atlantic Ocean, while we exclusively observe surface enrichments in the Arctic Ocean, at all sampling stations. We will make use of the combined data sets of both cruises to investigate how climate may impact Hg marine biogeochemical cycle, how anthropogenic Hg makes its way into the deep ocean and whether the temporal evolution of emissions is traceable in water masses of different ages. We will also put our new observations in context with recent numerical model evaluations. Conference Object Arctic Arctic Arctic Ocean Fram Strait Greenland Newfoundland North Atlantic Tromsoe Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Arctic Ocean Greenland Newfoundland Pourquoi Pas ENVELOPE(135.783,135.783,-66.083,-66.083) Pourquoi-Pas ENVELOPE(-67.450,-67.450,-67.700,-67.700) Pourquoi-Pas? ENVELOPE(135.750,135.750,-66.200,-66.200) |
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Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
We will present the combined results of the French GEOTRACES GEOVIDE cruise in the North Atlantic Ocean and the 2015 German GEOTRACES cruise TransArc II in the central Arctic Ocean. Research vessel "Pourquoi pas?" sailed on May 15th from Lisbon to Greenland to arrive in Newfoundland on June 30th 2014, and icebreaker "Polarstern" sailed on August 17th from Tromsoe to explore the Nansen, the Amundsen and the Makarov basins, to arrive in Bremerhaven on October 15th 2015. Total mercury was sampled using ultra-trace clean rosettes and determined on board. In the Atlantic Ocean, surface waters of the Gulf Stream are cooled down as they travel north, and mix at the same time with waters exiting the Arctic Ocean via Fram Strait. These cool and dense surface waters dive to depth in the Greenland and Labrador seas. The North Atlantic Ocean predominantly receives Hg via atmospheric deposition from Europe and North America where industrial Hg emissions peaked in the 1970s. The Hg inputs to the Arctic Ocean are less well-constrained if not unknown. The current debate opposes a primary atmospheric with a river-dominated scenario. We find consistent surface depleted profiles in the North Atlantic Ocean, while we exclusively observe surface enrichments in the Arctic Ocean, at all sampling stations. We will make use of the combined data sets of both cruises to investigate how climate may impact Hg marine biogeochemical cycle, how anthropogenic Hg makes its way into the deep ocean and whether the temporal evolution of emissions is traceable in water masses of different ages. We will also put our new observations in context with recent numerical model evaluations. |
format |
Conference Object |
author |
Heimbürger, Lars-Eric Cossa, Daniel Rijkenberg, M. J. A. Sarthou, G. Rutgers v. d. Loeff, Michiel Sunderland, E.M. Sonke, Jeroen E. |
spellingShingle |
Heimbürger, Lars-Eric Cossa, Daniel Rijkenberg, M. J. A. Sarthou, G. Rutgers v. d. Loeff, Michiel Sunderland, E.M. Sonke, Jeroen E. Mercury in the North Atlantic and Arctic Oceans - results of the 2014 GEOTRACES GEOVIDE & 2015 GEOTRACES TransArc II cruises. |
author_facet |
Heimbürger, Lars-Eric Cossa, Daniel Rijkenberg, M. J. A. Sarthou, G. Rutgers v. d. Loeff, Michiel Sunderland, E.M. Sonke, Jeroen E. |
author_sort |
Heimbürger, Lars-Eric |
title |
Mercury in the North Atlantic and Arctic Oceans - results of the 2014 GEOTRACES GEOVIDE & 2015 GEOTRACES TransArc II cruises. |
title_short |
Mercury in the North Atlantic and Arctic Oceans - results of the 2014 GEOTRACES GEOVIDE & 2015 GEOTRACES TransArc II cruises. |
title_full |
Mercury in the North Atlantic and Arctic Oceans - results of the 2014 GEOTRACES GEOVIDE & 2015 GEOTRACES TransArc II cruises. |
title_fullStr |
Mercury in the North Atlantic and Arctic Oceans - results of the 2014 GEOTRACES GEOVIDE & 2015 GEOTRACES TransArc II cruises. |
title_full_unstemmed |
Mercury in the North Atlantic and Arctic Oceans - results of the 2014 GEOTRACES GEOVIDE & 2015 GEOTRACES TransArc II cruises. |
title_sort |
mercury in the north atlantic and arctic oceans - results of the 2014 geotraces geovide & 2015 geotraces transarc ii cruises. |
publishDate |
2016 |
url |
https://epic.awi.de/id/eprint/40414/ https://hdl.handle.net/10013/epic.47485 |
long_lat |
ENVELOPE(135.783,135.783,-66.083,-66.083) ENVELOPE(-67.450,-67.450,-67.700,-67.700) ENVELOPE(135.750,135.750,-66.200,-66.200) |
geographic |
Arctic Arctic Ocean Greenland Newfoundland Pourquoi Pas Pourquoi-Pas Pourquoi-Pas? |
geographic_facet |
Arctic Arctic Ocean Greenland Newfoundland Pourquoi Pas Pourquoi-Pas Pourquoi-Pas? |
genre |
Arctic Arctic Arctic Ocean Fram Strait Greenland Newfoundland North Atlantic Tromsoe |
genre_facet |
Arctic Arctic Arctic Ocean Fram Strait Greenland Newfoundland North Atlantic Tromsoe |
op_source |
EPIC3AGU Ocean Sciences Meeting, New Orleans, USA, 2016-02-22-2016-02-26 |
op_relation |
Heimbürger, L. E. , Cossa, D. , Rijkenberg, M. J. A. , Sarthou, G. , Rutgers v. d. Loeff, M. orcid:0000-0003-1393-3742 , Sunderland, E. and Sonke, J. E. (2016) Mercury in the North Atlantic and Arctic Oceans - results of the 2014 GEOTRACES GEOVIDE & 2015 GEOTRACES TransArc II cruises. , AGU Ocean Sciences Meeting, New Orleans, USA, 22 February 2016 - 26 February 2016 . hdl:10013/epic.47485 |
_version_ |
1766301118454824960 |