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The Marginal Ice Zone as a dominant source region of atmospheric mercury during central Arctic summertime
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...
Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10425351/ https://www.ncbi.nlm.nih.gov/pubmed/37580358 http://dx.doi.org/10.1038/s41467-023-40660-9 |
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author | Yue, Fange Angot, Hélène Blomquist, Byron Schmale, Julia Hoppe, Clara J. M. Lei, Ruibo Shupe, Matthew D. Zhan, Liyang Ren, Jian Liu, Hailong Beck, Ivo Howard, Dean Jokinen, Tuija Laurila, Tiia Quéléver, Lauriane Boyer, Matthew Petäjä, Tuukka Archer, Stephen Bariteau, Ludovic Helmig, Detlev Hueber, Jacques Jacobi, Hans-Werner Posman, Kevin Xie, Zhouqing |
author_facet | Yue, Fange Angot, Hélène Blomquist, Byron Schmale, Julia Hoppe, Clara J. M. Lei, Ruibo Shupe, Matthew D. Zhan, Liyang Ren, Jian Liu, Hailong Beck, Ivo Howard, Dean Jokinen, Tuija Laurila, Tiia Quéléver, Lauriane Boyer, Matthew Petäjä, Tuukka Archer, Stephen Bariteau, Ludovic Helmig, Detlev Hueber, Jacques Jacobi, Hans-Werner Posman, Kevin Xie, Zhouqing |
author_sort | Yue, Fange |
collection | PubMed |
description | 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. |
format | Online Article Text |
id | pubmed-10425351 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-104253512023-08-16 The Marginal Ice Zone as a dominant source region of atmospheric mercury during central Arctic summertime Yue, Fange Angot, Hélène Blomquist, Byron Schmale, Julia Hoppe, Clara J. M. Lei, Ruibo Shupe, Matthew D. Zhan, Liyang Ren, Jian Liu, Hailong Beck, Ivo Howard, Dean Jokinen, Tuija Laurila, Tiia Quéléver, Lauriane Boyer, Matthew Petäjä, Tuukka Archer, Stephen Bariteau, Ludovic Helmig, Detlev Hueber, Jacques Jacobi, Hans-Werner Posman, Kevin Xie, Zhouqing Nat Commun Article 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. Nature Publishing Group UK 2023-08-14 /pmc/articles/PMC10425351/ /pubmed/37580358 http://dx.doi.org/10.1038/s41467-023-40660-9 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Yue, Fange Angot, Hélène Blomquist, Byron Schmale, Julia Hoppe, Clara J. M. Lei, Ruibo Shupe, Matthew D. Zhan, Liyang Ren, Jian Liu, Hailong Beck, Ivo Howard, Dean Jokinen, Tuija Laurila, Tiia Quéléver, Lauriane Boyer, Matthew Petäjä, Tuukka Archer, Stephen Bariteau, Ludovic Helmig, Detlev Hueber, Jacques Jacobi, Hans-Werner Posman, Kevin Xie, Zhouqing The Marginal Ice Zone as a dominant source region of atmospheric mercury during central Arctic summertime |
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 |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10425351/ https://www.ncbi.nlm.nih.gov/pubmed/37580358 http://dx.doi.org/10.1038/s41467-023-40660-9 |
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