Profiles of mercury in snow pack at Station Nord, Greenland, shortly after polar sunrise
Abstract: Mercury (Hg) species have been measured in the snow pack at Station Nord, Greenland both in the snow and in the air of snow from February 25 to March 15, 2002, during twilight and low solar irradiation periods. More than 99% of Hg is in the snow itself ( similar to 94 - 97% as Hg2+ and sim...
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Language: | English |
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ftunivantwerpen:c:irua:46503 2023-07-16T03:58:44+02:00 Profiles of mercury in snow pack at Station Nord, Greenland, shortly after polar sunrise Ferrari, Christophe Dommergue, Aurélien Boutron, Claude Jitaru, Petru Adams, Freddy 2004 https://hdl.handle.net/10067/465030151162165141 eng eng info:eu-repo/semantics/altIdentifier/isi/000189051500004 info:eu-repo/semantics/altIdentifier/doi/10.1029/2003GL018961 info:eu-repo/semantics/closedAccess 0094-8276 Geophysical research letters Physics info:eu-repo/semantics/article 2004 ftunivantwerpen https://doi.org/10.1029/2003GL018961 2023-06-26T22:11:46Z Abstract: Mercury (Hg) species have been measured in the snow pack at Station Nord, Greenland both in the snow and in the air of snow from February 25 to March 15, 2002, during twilight and low solar irradiation periods. More than 99% of Hg is in the snow itself ( similar to 94 - 97% as Hg2+ and similar to 5% as MeHg+) while less than 1% is in the interstitial air of snow as Hgdegrees. Gaseous Elemental Mercury (Hgdegrees) concentrations, decreased exponentially with depth from similar to 1.5 ng/m(3) outside to similar to 0.1 ng/m(3) at 120 cm depth in the snow air. Hgdegrees incorporation flux to the snow pack has been evaluated to similar to 5.8 - 7.0 pg/m(2)/h which is weak, indicating that this process does not change significantly the Hg content in the snow. We believe that this decrease in the air of snow is the result of fast oxidation processes of Hgdegrees rather than adsorption of Hgdegrees onto snow surfaces. Article in Journal/Newspaper Greenland IRUA - Institutional Repository van de Universiteit Antwerpen Greenland Station Nord ENVELOPE(-16.663,-16.663,81.599,81.599) Geophysical Research Letters 31 3 |
institution |
Open Polar |
collection |
IRUA - Institutional Repository van de Universiteit Antwerpen |
op_collection_id |
ftunivantwerpen |
language |
English |
topic |
Physics |
spellingShingle |
Physics Ferrari, Christophe Dommergue, Aurélien Boutron, Claude Jitaru, Petru Adams, Freddy Profiles of mercury in snow pack at Station Nord, Greenland, shortly after polar sunrise |
topic_facet |
Physics |
description |
Abstract: Mercury (Hg) species have been measured in the snow pack at Station Nord, Greenland both in the snow and in the air of snow from February 25 to March 15, 2002, during twilight and low solar irradiation periods. More than 99% of Hg is in the snow itself ( similar to 94 - 97% as Hg2+ and similar to 5% as MeHg+) while less than 1% is in the interstitial air of snow as Hgdegrees. Gaseous Elemental Mercury (Hgdegrees) concentrations, decreased exponentially with depth from similar to 1.5 ng/m(3) outside to similar to 0.1 ng/m(3) at 120 cm depth in the snow air. Hgdegrees incorporation flux to the snow pack has been evaluated to similar to 5.8 - 7.0 pg/m(2)/h which is weak, indicating that this process does not change significantly the Hg content in the snow. We believe that this decrease in the air of snow is the result of fast oxidation processes of Hgdegrees rather than adsorption of Hgdegrees onto snow surfaces. |
format |
Article in Journal/Newspaper |
author |
Ferrari, Christophe Dommergue, Aurélien Boutron, Claude Jitaru, Petru Adams, Freddy |
author_facet |
Ferrari, Christophe Dommergue, Aurélien Boutron, Claude Jitaru, Petru Adams, Freddy |
author_sort |
Ferrari, Christophe |
title |
Profiles of mercury in snow pack at Station Nord, Greenland, shortly after polar sunrise |
title_short |
Profiles of mercury in snow pack at Station Nord, Greenland, shortly after polar sunrise |
title_full |
Profiles of mercury in snow pack at Station Nord, Greenland, shortly after polar sunrise |
title_fullStr |
Profiles of mercury in snow pack at Station Nord, Greenland, shortly after polar sunrise |
title_full_unstemmed |
Profiles of mercury in snow pack at Station Nord, Greenland, shortly after polar sunrise |
title_sort |
profiles of mercury in snow pack at station nord, greenland, shortly after polar sunrise |
publishDate |
2004 |
url |
https://hdl.handle.net/10067/465030151162165141 |
long_lat |
ENVELOPE(-16.663,-16.663,81.599,81.599) |
geographic |
Greenland Station Nord |
geographic_facet |
Greenland Station Nord |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
0094-8276 Geophysical research letters |
op_relation |
info:eu-repo/semantics/altIdentifier/isi/000189051500004 info:eu-repo/semantics/altIdentifier/doi/10.1029/2003GL018961 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1029/2003GL018961 |
container_title |
Geophysical Research Letters |
container_volume |
31 |
container_issue |
3 |
_version_ |
1771546005779513344 |