Do contemporary (1980–2015) emissions determine the elemental carbon deposition trend at Holtedahlfonna glacier, Svalbard?
The climate impact of black carbon (BC) is notably amplified in the Arctic by its deposition, which causes albedo decrease and subsequent earlier snow and ice spring melt. To comprehensively assess the climate impact of BC in the Arctic, information on both atmospheric BC concentrations and depositi...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00042145 2023-05-15T13:11:31+02:00 Do contemporary (1980–2015) emissions determine the elemental carbon deposition trend at Holtedahlfonna glacier, Svalbard? Ruppel, Meri M. Soares, Joana Gallet, Jean-Charles Isaksson, Elisabeth Martma, Tõnu Svensson, Jonas Kohler, Jack Pedersen, Christina A. Manninen, Sirkku Korhola, Atte Ström, Johan 2017-10 electronic https://doi.org/10.5194/acp-17-12779-2017 https://noa.gwlb.de/receive/cop_mods_00042145 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041765/acp-17-12779-2017.pdf https://acp.copernicus.org/articles/17/12779/2017/acp-17-12779-2017.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-17-12779-2017 https://noa.gwlb.de/receive/cop_mods_00042145 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041765/acp-17-12779-2017.pdf https://acp.copernicus.org/articles/17/12779/2017/acp-17-12779-2017.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2017 ftnonlinearchiv https://doi.org/10.5194/acp-17-12779-2017 2022-02-08T22:41:12Z The climate impact of black carbon (BC) is notably amplified in the Arctic by its deposition, which causes albedo decrease and subsequent earlier snow and ice spring melt. To comprehensively assess the climate impact of BC in the Arctic, information on both atmospheric BC concentrations and deposition is essential. Currently, Arctic BC deposition data are very scarce, while atmospheric BC concentrations have been shown to generally decrease since the 1990s. However, a 300-year Svalbard ice core showed a distinct increase in EC (elemental carbon, proxy for BC) deposition from 1970 to 2004 contradicting atmospheric measurements and modelling studies. Here, our objective was to decipher whether this increase has continued in the 21st century and to investigate the drivers of the observed EC deposition trends. For this, a shallow firn core was collected from the same Svalbard glacier, and a regional-to-meso-scale chemical transport model (SILAM) was run from 1980 to 2015. The ice and firn core data indicate peaking EC deposition values at the end of the 1990s and lower values thereafter. The modelled BC deposition results generally support the observed glacier EC variations. However, the ice and firn core results clearly deviate from both measured and modelled atmospheric BC concentration trends, and the modelled BC deposition trend shows variations seemingly independent from BC emission or atmospheric BC concentration trends. Furthermore, according to the model ca. 99 % BC mass is wet-deposited at this Svalbard glacier, indicating that meteorological processes such as precipitation and scavenging efficiency have most likely a stronger influence on the BC deposition trend than BC emission or atmospheric concentration trends. BC emission source sectors contribute differently to the modelled atmospheric BC concentrations and BC deposition, which further supports our conclusion that different processes affect atmospheric BC concentration and deposition trends. Consequently, Arctic BC deposition trends should not directly be inferred based on atmospheric BC measurements, and more observational BC deposition data are required to assess the climate impact of BC in Arctic snow. Article in Journal/Newspaper albedo Arctic black carbon glacier ice core Svalbard Niedersächsisches Online-Archiv NOA Arctic Holtedahlfonna ENVELOPE(13.730,13.730,79.011,79.011) Svalbard Atmospheric Chemistry and Physics 17 20 12779 12795 |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Ruppel, Meri M. Soares, Joana Gallet, Jean-Charles Isaksson, Elisabeth Martma, Tõnu Svensson, Jonas Kohler, Jack Pedersen, Christina A. Manninen, Sirkku Korhola, Atte Ström, Johan Do contemporary (1980–2015) emissions determine the elemental carbon deposition trend at Holtedahlfonna glacier, Svalbard? |
topic_facet |
article Verlagsveröffentlichung |
description |
The climate impact of black carbon (BC) is notably amplified in the Arctic by its deposition, which causes albedo decrease and subsequent earlier snow and ice spring melt. To comprehensively assess the climate impact of BC in the Arctic, information on both atmospheric BC concentrations and deposition is essential. Currently, Arctic BC deposition data are very scarce, while atmospheric BC concentrations have been shown to generally decrease since the 1990s. However, a 300-year Svalbard ice core showed a distinct increase in EC (elemental carbon, proxy for BC) deposition from 1970 to 2004 contradicting atmospheric measurements and modelling studies. Here, our objective was to decipher whether this increase has continued in the 21st century and to investigate the drivers of the observed EC deposition trends. For this, a shallow firn core was collected from the same Svalbard glacier, and a regional-to-meso-scale chemical transport model (SILAM) was run from 1980 to 2015. The ice and firn core data indicate peaking EC deposition values at the end of the 1990s and lower values thereafter. The modelled BC deposition results generally support the observed glacier EC variations. However, the ice and firn core results clearly deviate from both measured and modelled atmospheric BC concentration trends, and the modelled BC deposition trend shows variations seemingly independent from BC emission or atmospheric BC concentration trends. Furthermore, according to the model ca. 99 % BC mass is wet-deposited at this Svalbard glacier, indicating that meteorological processes such as precipitation and scavenging efficiency have most likely a stronger influence on the BC deposition trend than BC emission or atmospheric concentration trends. BC emission source sectors contribute differently to the modelled atmospheric BC concentrations and BC deposition, which further supports our conclusion that different processes affect atmospheric BC concentration and deposition trends. Consequently, Arctic BC deposition trends should not directly be inferred based on atmospheric BC measurements, and more observational BC deposition data are required to assess the climate impact of BC in Arctic snow. |
format |
Article in Journal/Newspaper |
author |
Ruppel, Meri M. Soares, Joana Gallet, Jean-Charles Isaksson, Elisabeth Martma, Tõnu Svensson, Jonas Kohler, Jack Pedersen, Christina A. Manninen, Sirkku Korhola, Atte Ström, Johan |
author_facet |
Ruppel, Meri M. Soares, Joana Gallet, Jean-Charles Isaksson, Elisabeth Martma, Tõnu Svensson, Jonas Kohler, Jack Pedersen, Christina A. Manninen, Sirkku Korhola, Atte Ström, Johan |
author_sort |
Ruppel, Meri M. |
title |
Do contemporary (1980–2015) emissions determine the elemental carbon deposition trend at Holtedahlfonna glacier, Svalbard? |
title_short |
Do contemporary (1980–2015) emissions determine the elemental carbon deposition trend at Holtedahlfonna glacier, Svalbard? |
title_full |
Do contemporary (1980–2015) emissions determine the elemental carbon deposition trend at Holtedahlfonna glacier, Svalbard? |
title_fullStr |
Do contemporary (1980–2015) emissions determine the elemental carbon deposition trend at Holtedahlfonna glacier, Svalbard? |
title_full_unstemmed |
Do contemporary (1980–2015) emissions determine the elemental carbon deposition trend at Holtedahlfonna glacier, Svalbard? |
title_sort |
do contemporary (1980–2015) emissions determine the elemental carbon deposition trend at holtedahlfonna glacier, svalbard? |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/acp-17-12779-2017 https://noa.gwlb.de/receive/cop_mods_00042145 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041765/acp-17-12779-2017.pdf https://acp.copernicus.org/articles/17/12779/2017/acp-17-12779-2017.pdf |
long_lat |
ENVELOPE(13.730,13.730,79.011,79.011) |
geographic |
Arctic Holtedahlfonna Svalbard |
geographic_facet |
Arctic Holtedahlfonna Svalbard |
genre |
albedo Arctic black carbon glacier ice core Svalbard |
genre_facet |
albedo Arctic black carbon glacier ice core Svalbard |
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-17-12779-2017 https://noa.gwlb.de/receive/cop_mods_00042145 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041765/acp-17-12779-2017.pdf https://acp.copernicus.org/articles/17/12779/2017/acp-17-12779-2017.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-17-12779-2017 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
17 |
container_issue |
20 |
container_start_page |
12779 |
op_container_end_page |
12795 |
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1766247771617099776 |