The Marginal Ice Zone as a dominant source region of atmospheric mercury during central Arctic summertime
Abstract Atmospheric gaseous elemental mercury (GEM) concentrations in the Arctic exhibit a clear summertime maximum, while the origin of this peak is still a matter of debate in the community. Based on summertime observations during the Multidisciplinary drifting Observatory for the Study of Arctic...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-08-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-40660-9 |
| _version_ | 1827709599554207744 |
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| author | Fange Yue Hélène Angot Byron Blomquist Julia Schmale Clara J. M. Hoppe Ruibo Lei Matthew D. Shupe Liyang Zhan Jian Ren Hailong Liu Ivo Beck Dean Howard Tuija Jokinen Tiia Laurila Lauriane Quéléver Matthew Boyer Tuukka Petäjä Stephen Archer Ludovic Bariteau Detlev Helmig Jacques Hueber Hans-Werner Jacobi Kevin Posman Zhouqing Xie |
| author_facet | Fange Yue Hélène Angot Byron Blomquist Julia Schmale Clara J. M. Hoppe Ruibo Lei Matthew D. Shupe Liyang Zhan Jian Ren Hailong Liu Ivo Beck Dean Howard Tuija Jokinen Tiia Laurila Lauriane Quéléver Matthew Boyer Tuukka Petäjä Stephen Archer Ludovic Bariteau Detlev Helmig Jacques Hueber Hans-Werner Jacobi Kevin Posman Zhouqing Xie |
| author_sort | Fange Yue |
| collection | DOAJ |
| description | Abstract Atmospheric gaseous elemental mercury (GEM) concentrations in the Arctic exhibit a clear summertime maximum, while the origin of this peak is still a matter of debate in the community. Based on summertime observations during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition and a modeling approach, we further investigate the sources of atmospheric Hg in the central Arctic. Simulations with a generalized additive model (GAM) show that long-range transport of anthropogenic and terrestrial Hg from lower latitudes is a minor contribution (~2%), and more than 50% of the explained GEM variability is caused by oceanic evasion. A potential source contribution function (PSCF) analysis further shows that oceanic evasion is not significant throughout the ice-covered central Arctic Ocean but mainly occurs in the Marginal Ice Zone (MIZ) due to the specific environmental conditions in that region. Our results suggest that this regional process could be the leading contributor to the observed summertime GEM maximum. In the context of rapid Arctic warming and the observed increase in width of the MIZ, oceanic Hg evasion may become more significant and strengthen the role of the central Arctic Ocean as a summertime source of atmospheric Hg. |
| first_indexed | 2024-03-10T17:25:11Z |
| format | Article |
| id | doaj.art-3f2549aaec68447ea41894c58dc2aec6 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-10T17:25:11Z |
| publishDate | 2023-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-3f2549aaec68447ea41894c58dc2aec62023-11-20T10:12:50ZengNature PortfolioNature Communications2041-17232023-08-0114111310.1038/s41467-023-40660-9The Marginal Ice Zone as a dominant source region of atmospheric mercury during central Arctic summertimeFange Yue0Hélène Angot1Byron Blomquist2Julia Schmale3Clara J. M. Hoppe4Ruibo Lei5Matthew D. Shupe6Liyang Zhan7Jian Ren8Hailong Liu9Ivo Beck10Dean Howard11Tuija Jokinen12Tiia Laurila13Lauriane Quéléver14Matthew Boyer15Tuukka Petäjä16Stephen Archer17Ludovic Bariteau18Detlev Helmig19Jacques Hueber20Hans-Werner Jacobi21Kevin Posman22Zhouqing Xie23Institute of Polar Environment & Anhui Key Laboratory of Polar Environment and Global Change, Department of Environmental Science and Engineering, University of Science and Technology of ChinaExtreme Environments Research Laboratory, École Polytechnique Fédérale de Lausanne (EPFL) Valais WallisCooperative Institute for Research in Environmental Sciences, University of ColoradoExtreme Environments Research Laboratory, École Polytechnique Fédérale de Lausanne (EPFL) Valais WallisAlfred Wegener Institut—Helmholtzzentrum für Polar- und Meeresforschung, Am Handelshafen 12Key Laboratory for Polar Science of the MNR, Polar Research Institute of ChinaCooperative Institute for Research in Environmental Sciences, University of ColoradoThird Institute of Oceanography, Ministry of natural resourcesKey Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural ResourcesSchool of Oceanography, Shanghai Jiao Tong UniversityExtreme Environments Research Laboratory, École Polytechnique Fédérale de Lausanne (EPFL) Valais WallisCooperative Institute for Research in Environmental Sciences, University of ColoradoInstitute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of HelsinkiInstitute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of HelsinkiInstitute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of HelsinkiInstitute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of HelsinkiInstitute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of HelsinkiBigelow Laboratory for Ocean SciencesCooperative Institute for Research in Environmental Sciences, University of ColoradoBoulder Atmosphere Innovation ResearchJH Atmospheric Instrumentation DesignUniv. Grenoble Alpes, CNRS, INRAE, IRD, Grenoble INP, IGEBigelow Laboratory for Ocean SciencesInstitute of Polar Environment & Anhui Key Laboratory of Polar Environment and Global Change, Department of Environmental Science and Engineering, University of Science and Technology of ChinaAbstract Atmospheric gaseous elemental mercury (GEM) concentrations in the Arctic exhibit a clear summertime maximum, while the origin of this peak is still a matter of debate in the community. Based on summertime observations during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition and a modeling approach, we further investigate the sources of atmospheric Hg in the central Arctic. Simulations with a generalized additive model (GAM) show that long-range transport of anthropogenic and terrestrial Hg from lower latitudes is a minor contribution (~2%), and more than 50% of the explained GEM variability is caused by oceanic evasion. A potential source contribution function (PSCF) analysis further shows that oceanic evasion is not significant throughout the ice-covered central Arctic Ocean but mainly occurs in the Marginal Ice Zone (MIZ) due to the specific environmental conditions in that region. Our results suggest that this regional process could be the leading contributor to the observed summertime GEM maximum. In the context of rapid Arctic warming and the observed increase in width of the MIZ, oceanic Hg evasion may become more significant and strengthen the role of the central Arctic Ocean as a summertime source of atmospheric Hg.https://doi.org/10.1038/s41467-023-40660-9 |
| spellingShingle | Fange Yue Hélène Angot Byron Blomquist Julia Schmale Clara J. M. Hoppe Ruibo Lei Matthew D. Shupe Liyang Zhan Jian Ren Hailong Liu Ivo Beck Dean Howard Tuija Jokinen Tiia Laurila Lauriane Quéléver Matthew Boyer Tuukka Petäjä Stephen Archer Ludovic Bariteau Detlev Helmig Jacques Hueber Hans-Werner Jacobi Kevin Posman Zhouqing Xie The Marginal Ice Zone as a dominant source region of atmospheric mercury during central Arctic summertime Nature Communications |
| title | The Marginal Ice Zone as a dominant source region of atmospheric mercury during central Arctic summertime |
| title_full | The Marginal Ice Zone as a dominant source region of atmospheric mercury during central Arctic summertime |
| title_fullStr | The Marginal Ice Zone as a dominant source region of atmospheric mercury during central Arctic summertime |
| title_full_unstemmed | The Marginal Ice Zone as a dominant source region of atmospheric mercury during central Arctic summertime |
| title_short | The Marginal Ice Zone as a dominant source region of atmospheric mercury during central Arctic summertime |
| title_sort | marginal ice zone as a dominant source region of atmospheric mercury during central arctic summertime |
| url | https://doi.org/10.1038/s41467-023-40660-9 |
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