Chemical cycling and deposition of atmospheric mercury in Polar Regions: review of recent measurements and comparison with models
Mercury (Hg) is a worldwide contaminant that can cause adverse health effects to wildlife and humans. While atmospheric modeling traces the link from emissions to deposition of Hg onto environmental surfaces, large uncertainties arise from our incomplete understanding of atmospheric processes (oxida...
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Copernicus Publications on behald of the European Geosciences Union
2016
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Online Access: | http://nora.nerc.ac.uk/id/eprint/513874/ https://nora.nerc.ac.uk/id/eprint/513874/1/Angot.pdf http://www.atmos-chem-phys.net/16/10735/2016/ |
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ftnerc:oai:nora.nerc.ac.uk:513874 2023-05-15T13:49:32+02:00 Chemical cycling and deposition of atmospheric mercury in Polar Regions: review of recent measurements and comparison with models Angot, Helene Dastoor, Ashu De Simone, Francesco Gardfeldt, Katarina Gencarelli, Christian N. Hedgecock, Ian M. Langer, Sarka Magand, Olivier Mastromonaco, Michelle N. Nordstrom, Claus Pfaffhuber, Katrine A. Pirrone, Nicola Ryjkov, Andrei Selin, Noelle E. Skov, Henrik Song, Shaojie Sprovieri, Francesca Steffen, Alexandra Toyota, Kenjiro Travnikov, Oleg Yang, Xin Dommergue, Aurelien 2016-08-30 text http://nora.nerc.ac.uk/id/eprint/513874/ https://nora.nerc.ac.uk/id/eprint/513874/1/Angot.pdf http://www.atmos-chem-phys.net/16/10735/2016/ en eng Copernicus Publications on behald of the European Geosciences Union https://nora.nerc.ac.uk/id/eprint/513874/1/Angot.pdf Angot, Helene; Dastoor, Ashu; De Simone, Francesco; Gardfeldt, Katarina; Gencarelli, Christian N.; Hedgecock, Ian M.; Langer, Sarka; Magand, Olivier; Mastromonaco, Michelle N.; Nordstrom, Claus; Pfaffhuber, Katrine A.; Pirrone, Nicola; Ryjkov, Andrei; Selin, Noelle E.; Skov, Henrik; Song, Shaojie; Sprovieri, Francesca; Steffen, Alexandra; Toyota, Kenjiro; Travnikov, Oleg; Yang, Xin orcid:0000-0002-3838-9758 Dommergue, Aurelien. 2016 Chemical cycling and deposition of atmospheric mercury in Polar Regions: review of recent measurements and comparison with models. Atmospheric Chemistry and Physics, 16 (16). 10735-10763. https://doi.org/10.5194/acp-16-10735-2016 <https://doi.org/10.5194/acp-16-10735-2016> cc_by CC-BY Chemistry Publication - Article PeerReviewed 2016 ftnerc https://doi.org/10.5194/acp-16-10735-2016 2023-02-04T19:43:10Z Mercury (Hg) is a worldwide contaminant that can cause adverse health effects to wildlife and humans. While atmospheric modeling traces the link from emissions to deposition of Hg onto environmental surfaces, large uncertainties arise from our incomplete understanding of atmospheric processes (oxidation pathways, deposition, and re-emission). Atmospheric Hg reactivity is exacerbated in high latitudes and there is still much to be learned from polar regions in terms of atmospheric processes. This paper provides a synthesis of the atmospheric Hg monitoring data available in recent years (2011–2015) in the Arctic and in Antarctica along with a comparison of these observations with numerical simulations using four cutting-edge global models. The cycle of atmospheric Hg in the Arctic and in Antarctica presents both similarities and differences. Coastal sites in the two regions are both influenced by springtime atmospheric Hg depletion events and by summertime snowpack re-emission and oceanic evasion of Hg. The cycle of atmospheric Hg differs between the two regions primarily because of their different geography. While Arctic sites are significantly influenced by northern hemispheric Hg emissions especially in winter, coastal Antarctic sites are significantly influenced by the reactivity observed on the East Antarctic ice sheet due to katabatic winds. Based on the comparison of multi-model simulations with observations, this paper discusses whether the processes that affect atmospheric Hg seasonality and interannual variability are appropriately represented in the models and identifies research gaps in our understanding of the atmospheric Hg cycling in high latitudes. Article in Journal/Newspaper Antarc* Antarctic Antarctica Arctic Ice Sheet Natural Environment Research Council: NERC Open Research Archive Arctic Antarctic East Antarctic Ice Sheet Atmospheric Chemistry and Physics 16 16 10735 10763 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
language |
English |
topic |
Chemistry |
spellingShingle |
Chemistry Angot, Helene Dastoor, Ashu De Simone, Francesco Gardfeldt, Katarina Gencarelli, Christian N. Hedgecock, Ian M. Langer, Sarka Magand, Olivier Mastromonaco, Michelle N. Nordstrom, Claus Pfaffhuber, Katrine A. Pirrone, Nicola Ryjkov, Andrei Selin, Noelle E. Skov, Henrik Song, Shaojie Sprovieri, Francesca Steffen, Alexandra Toyota, Kenjiro Travnikov, Oleg Yang, Xin Dommergue, Aurelien Chemical cycling and deposition of atmospheric mercury in Polar Regions: review of recent measurements and comparison with models |
topic_facet |
Chemistry |
description |
Mercury (Hg) is a worldwide contaminant that can cause adverse health effects to wildlife and humans. While atmospheric modeling traces the link from emissions to deposition of Hg onto environmental surfaces, large uncertainties arise from our incomplete understanding of atmospheric processes (oxidation pathways, deposition, and re-emission). Atmospheric Hg reactivity is exacerbated in high latitudes and there is still much to be learned from polar regions in terms of atmospheric processes. This paper provides a synthesis of the atmospheric Hg monitoring data available in recent years (2011–2015) in the Arctic and in Antarctica along with a comparison of these observations with numerical simulations using four cutting-edge global models. The cycle of atmospheric Hg in the Arctic and in Antarctica presents both similarities and differences. Coastal sites in the two regions are both influenced by springtime atmospheric Hg depletion events and by summertime snowpack re-emission and oceanic evasion of Hg. The cycle of atmospheric Hg differs between the two regions primarily because of their different geography. While Arctic sites are significantly influenced by northern hemispheric Hg emissions especially in winter, coastal Antarctic sites are significantly influenced by the reactivity observed on the East Antarctic ice sheet due to katabatic winds. Based on the comparison of multi-model simulations with observations, this paper discusses whether the processes that affect atmospheric Hg seasonality and interannual variability are appropriately represented in the models and identifies research gaps in our understanding of the atmospheric Hg cycling in high latitudes. |
format |
Article in Journal/Newspaper |
author |
Angot, Helene Dastoor, Ashu De Simone, Francesco Gardfeldt, Katarina Gencarelli, Christian N. Hedgecock, Ian M. Langer, Sarka Magand, Olivier Mastromonaco, Michelle N. Nordstrom, Claus Pfaffhuber, Katrine A. Pirrone, Nicola Ryjkov, Andrei Selin, Noelle E. Skov, Henrik Song, Shaojie Sprovieri, Francesca Steffen, Alexandra Toyota, Kenjiro Travnikov, Oleg Yang, Xin Dommergue, Aurelien |
author_facet |
Angot, Helene Dastoor, Ashu De Simone, Francesco Gardfeldt, Katarina Gencarelli, Christian N. Hedgecock, Ian M. Langer, Sarka Magand, Olivier Mastromonaco, Michelle N. Nordstrom, Claus Pfaffhuber, Katrine A. Pirrone, Nicola Ryjkov, Andrei Selin, Noelle E. Skov, Henrik Song, Shaojie Sprovieri, Francesca Steffen, Alexandra Toyota, Kenjiro Travnikov, Oleg Yang, Xin Dommergue, Aurelien |
author_sort |
Angot, Helene |
title |
Chemical cycling and deposition of atmospheric mercury in Polar Regions: review of recent measurements and comparison with models |
title_short |
Chemical cycling and deposition of atmospheric mercury in Polar Regions: review of recent measurements and comparison with models |
title_full |
Chemical cycling and deposition of atmospheric mercury in Polar Regions: review of recent measurements and comparison with models |
title_fullStr |
Chemical cycling and deposition of atmospheric mercury in Polar Regions: review of recent measurements and comparison with models |
title_full_unstemmed |
Chemical cycling and deposition of atmospheric mercury in Polar Regions: review of recent measurements and comparison with models |
title_sort |
chemical cycling and deposition of atmospheric mercury in polar regions: review of recent measurements and comparison with models |
publisher |
Copernicus Publications on behald of the European Geosciences Union |
publishDate |
2016 |
url |
http://nora.nerc.ac.uk/id/eprint/513874/ https://nora.nerc.ac.uk/id/eprint/513874/1/Angot.pdf http://www.atmos-chem-phys.net/16/10735/2016/ |
geographic |
Arctic Antarctic East Antarctic Ice Sheet |
geographic_facet |
Arctic Antarctic East Antarctic Ice Sheet |
genre |
Antarc* Antarctic Antarctica Arctic Ice Sheet |
genre_facet |
Antarc* Antarctic Antarctica Arctic Ice Sheet |
op_relation |
https://nora.nerc.ac.uk/id/eprint/513874/1/Angot.pdf Angot, Helene; Dastoor, Ashu; De Simone, Francesco; Gardfeldt, Katarina; Gencarelli, Christian N.; Hedgecock, Ian M.; Langer, Sarka; Magand, Olivier; Mastromonaco, Michelle N.; Nordstrom, Claus; Pfaffhuber, Katrine A.; Pirrone, Nicola; Ryjkov, Andrei; Selin, Noelle E.; Skov, Henrik; Song, Shaojie; Sprovieri, Francesca; Steffen, Alexandra; Toyota, Kenjiro; Travnikov, Oleg; Yang, Xin orcid:0000-0002-3838-9758 Dommergue, Aurelien. 2016 Chemical cycling and deposition of atmospheric mercury in Polar Regions: review of recent measurements and comparison with models. Atmospheric Chemistry and Physics, 16 (16). 10735-10763. https://doi.org/10.5194/acp-16-10735-2016 <https://doi.org/10.5194/acp-16-10735-2016> |
op_rights |
cc_by |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/acp-16-10735-2016 |
container_title |
Atmospheric Chemistry and Physics |
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16 |
container_issue |
16 |
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10735 |
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10763 |
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1766251534622916608 |