Fluxes of gaseous elemental mercury (GEM) in the High Arctic during atmospheric mercury depletion events (AMDEs)
Measurements of gaseous elemental mercury (GEM) fluxes over snow surfaces using a relaxed eddy accumulation (REA) system are carried out at the High Arctic site at the Villum Research Station, Station Nord, in North Greenland. Simultaneously, CO2 fluxes are determined using the eddy covariance (EC)...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00041753 2023-05-15T14:57:56+02:00 Fluxes of gaseous elemental mercury (GEM) in the High Arctic during atmospheric mercury depletion events (AMDEs) Kamp, Jesper Skov, Henrik Jensen, Bjarne Sørensen, Lise Lotte 2018-05 electronic https://doi.org/10.5194/acp-18-6923-2018 https://noa.gwlb.de/receive/cop_mods_00041753 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041373/acp-18-6923-2018.pdf https://acp.copernicus.org/articles/18/6923/2018/acp-18-6923-2018.pdf eng eng Copernicus Publications Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-18-6923-2018 https://noa.gwlb.de/receive/cop_mods_00041753 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041373/acp-18-6923-2018.pdf https://acp.copernicus.org/articles/18/6923/2018/acp-18-6923-2018.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2018 ftnonlinearchiv https://doi.org/10.5194/acp-18-6923-2018 2022-02-08T22:41:25Z Measurements of gaseous elemental mercury (GEM) fluxes over snow surfaces using a relaxed eddy accumulation (REA) system are carried out at the High Arctic site at the Villum Research Station, Station Nord, in North Greenland. Simultaneously, CO2 fluxes are determined using the eddy covariance (EC) technique. The REA system with dual inlets and dual analyzers is used to measure fluxes directly over the snow. The measurements were carried out from 23 April to 12 May during spring 2016, where atmospheric mercury depletion events (AMDEs) took place. The measurements showed a net emission of 8.9 ng m−2 min−1, with only a few minor episodes of net depositional fluxes, from a maximum deposition of 8.1 ng m−2 min−1 to a maximum emission of 179.2 ng m−2 min−1. The data support the theory that gaseous oxidized mercury (GOM) is deposited during AMDEs followed by formation of GEM on surface snow and is re-emitted as GEM shortly after the AMDEs. Furthermore, observation of the relation between GEM fluxes and atmospheric temperature suggests that GEM emission partly could be affected by surface heating. However, it is also clear that the GEM emissions are affected by many parameters. Article in Journal/Newspaper Arctic Greenland North Greenland Niedersächsisches Online-Archiv NOA Arctic Greenland Station Nord ENVELOPE(-16.663,-16.663,81.599,81.599) Atmospheric Chemistry and Physics 18 9 6923 6938 |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Kamp, Jesper Skov, Henrik Jensen, Bjarne Sørensen, Lise Lotte Fluxes of gaseous elemental mercury (GEM) in the High Arctic during atmospheric mercury depletion events (AMDEs) |
topic_facet |
article Verlagsveröffentlichung |
description |
Measurements of gaseous elemental mercury (GEM) fluxes over snow surfaces using a relaxed eddy accumulation (REA) system are carried out at the High Arctic site at the Villum Research Station, Station Nord, in North Greenland. Simultaneously, CO2 fluxes are determined using the eddy covariance (EC) technique. The REA system with dual inlets and dual analyzers is used to measure fluxes directly over the snow. The measurements were carried out from 23 April to 12 May during spring 2016, where atmospheric mercury depletion events (AMDEs) took place. The measurements showed a net emission of 8.9 ng m−2 min−1, with only a few minor episodes of net depositional fluxes, from a maximum deposition of 8.1 ng m−2 min−1 to a maximum emission of 179.2 ng m−2 min−1. The data support the theory that gaseous oxidized mercury (GOM) is deposited during AMDEs followed by formation of GEM on surface snow and is re-emitted as GEM shortly after the AMDEs. Furthermore, observation of the relation between GEM fluxes and atmospheric temperature suggests that GEM emission partly could be affected by surface heating. However, it is also clear that the GEM emissions are affected by many parameters. |
format |
Article in Journal/Newspaper |
author |
Kamp, Jesper Skov, Henrik Jensen, Bjarne Sørensen, Lise Lotte |
author_facet |
Kamp, Jesper Skov, Henrik Jensen, Bjarne Sørensen, Lise Lotte |
author_sort |
Kamp, Jesper |
title |
Fluxes of gaseous elemental mercury (GEM) in the High Arctic during atmospheric mercury depletion events (AMDEs) |
title_short |
Fluxes of gaseous elemental mercury (GEM) in the High Arctic during atmospheric mercury depletion events (AMDEs) |
title_full |
Fluxes of gaseous elemental mercury (GEM) in the High Arctic during atmospheric mercury depletion events (AMDEs) |
title_fullStr |
Fluxes of gaseous elemental mercury (GEM) in the High Arctic during atmospheric mercury depletion events (AMDEs) |
title_full_unstemmed |
Fluxes of gaseous elemental mercury (GEM) in the High Arctic during atmospheric mercury depletion events (AMDEs) |
title_sort |
fluxes of gaseous elemental mercury (gem) in the high arctic during atmospheric mercury depletion events (amdes) |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/acp-18-6923-2018 https://noa.gwlb.de/receive/cop_mods_00041753 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041373/acp-18-6923-2018.pdf https://acp.copernicus.org/articles/18/6923/2018/acp-18-6923-2018.pdf |
long_lat |
ENVELOPE(-16.663,-16.663,81.599,81.599) |
geographic |
Arctic Greenland Station Nord |
geographic_facet |
Arctic Greenland Station Nord |
genre |
Arctic Greenland North Greenland |
genre_facet |
Arctic Greenland North Greenland |
op_relation |
Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-18-6923-2018 https://noa.gwlb.de/receive/cop_mods_00041753 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041373/acp-18-6923-2018.pdf https://acp.copernicus.org/articles/18/6923/2018/acp-18-6923-2018.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-18-6923-2018 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
18 |
container_issue |
9 |
container_start_page |
6923 |
op_container_end_page |
6938 |
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1766330030665760768 |