Recent Alterations of Aerosol Concentration, Mercury Distribution And Organic Matter Deposition In The Arctic
ABSTRACT Material fluxes in the Arctic and Antarctic have been, in several respects, strongly affected recently. For example, atmospheric turbidity conditions are frequently subject to strong changes due to haze and dust transport episodes, which can cause considerable perturbations in the radiation...
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crdegruytopen:10.2478/v10190-010-0002-9 2023-05-15T14:12:42+02:00 Recent Alterations of Aerosol Concentration, Mercury Distribution And Organic Matter Deposition In The Arctic Pempkowiak, Janusz Zieliński, Tymon Petelski, Tomasz Zaborska, Agata Bełdowski, Jacek 2011 http://dx.doi.org/10.2478/v10190-010-0002-9 https://www.degruyter.com/view/j/igbp.2011.18.issue-1/v10190-010-0002-9/v10190-010-0002-9.pdf unknown Walter de Gruyter GmbH Papers on Global Change IGBP volume 18, issue 1 ISSN 1730-802X Ecology Global and Planetary Change Geology Geophysics journal-article 2011 crdegruytopen https://doi.org/10.2478/v10190-010-0002-9 2017-08-15T20:50:03Z ABSTRACT Material fluxes in the Arctic and Antarctic have been, in several respects, strongly affected recently. For example, atmospheric turbidity conditions are frequently subject to strong changes due to haze and dust transport episodes, which can cause considerable perturbations in the radiation balance of the atmosphere beyond regional scale. This, directly or indirectly, contributes to the increased mercury deposition and organic matter fluxes to sediments. The results show that local emissions are not always the most important factors influencing the composition of aerosol in the atmosphere of the west Spitsbergen region. The direct radiative impact of polar aerosols on the surface and at the top of the atmosphere (TOA) need to be studied more closely through both theoretical studies on the aerosol radiative properties and measurements of the surface reflectance characteristics. Mercury dissolved/solid partitioning, both in the unconsolidated, fluffy layer of suspended matter covering the sediments, and the uppermost sediment layer, indicate that the influence of the athmospheric mercury deposition event (AMDE) can prolong well into summer (July/August), and can provide a pathway to the food chain for mercury contained in sediments. Since terrigenous supplies of organic carbon to the Barents Sea are minor (∼5%) compared to the marine supply, modern sediment deposits in this region sequester on average 6.0 g/m2year organic carbon, or 5.8% of the annual integrated pelagic primary production. This burial fraction exceeds, by a factor of 3, the burial fraction derived for the Holocene. Article in Journal/Newspaper Antarc* Antarctic Arctic Barents Sea Spitsbergen Sciendo (de Gruyter - via CrossRef) Arctic Antarctic Barents Sea Papers on Global Change IGBP 18 1 |
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Open Polar |
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Sciendo (de Gruyter - via CrossRef) |
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Ecology Global and Planetary Change Geology Geophysics |
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Ecology Global and Planetary Change Geology Geophysics Pempkowiak, Janusz Zieliński, Tymon Petelski, Tomasz Zaborska, Agata Bełdowski, Jacek Recent Alterations of Aerosol Concentration, Mercury Distribution And Organic Matter Deposition In The Arctic |
topic_facet |
Ecology Global and Planetary Change Geology Geophysics |
description |
ABSTRACT Material fluxes in the Arctic and Antarctic have been, in several respects, strongly affected recently. For example, atmospheric turbidity conditions are frequently subject to strong changes due to haze and dust transport episodes, which can cause considerable perturbations in the radiation balance of the atmosphere beyond regional scale. This, directly or indirectly, contributes to the increased mercury deposition and organic matter fluxes to sediments. The results show that local emissions are not always the most important factors influencing the composition of aerosol in the atmosphere of the west Spitsbergen region. The direct radiative impact of polar aerosols on the surface and at the top of the atmosphere (TOA) need to be studied more closely through both theoretical studies on the aerosol radiative properties and measurements of the surface reflectance characteristics. Mercury dissolved/solid partitioning, both in the unconsolidated, fluffy layer of suspended matter covering the sediments, and the uppermost sediment layer, indicate that the influence of the athmospheric mercury deposition event (AMDE) can prolong well into summer (July/August), and can provide a pathway to the food chain for mercury contained in sediments. Since terrigenous supplies of organic carbon to the Barents Sea are minor (∼5%) compared to the marine supply, modern sediment deposits in this region sequester on average 6.0 g/m2year organic carbon, or 5.8% of the annual integrated pelagic primary production. This burial fraction exceeds, by a factor of 3, the burial fraction derived for the Holocene. |
format |
Article in Journal/Newspaper |
author |
Pempkowiak, Janusz Zieliński, Tymon Petelski, Tomasz Zaborska, Agata Bełdowski, Jacek |
author_facet |
Pempkowiak, Janusz Zieliński, Tymon Petelski, Tomasz Zaborska, Agata Bełdowski, Jacek |
author_sort |
Pempkowiak, Janusz |
title |
Recent Alterations of Aerosol Concentration, Mercury Distribution And Organic Matter Deposition In The Arctic |
title_short |
Recent Alterations of Aerosol Concentration, Mercury Distribution And Organic Matter Deposition In The Arctic |
title_full |
Recent Alterations of Aerosol Concentration, Mercury Distribution And Organic Matter Deposition In The Arctic |
title_fullStr |
Recent Alterations of Aerosol Concentration, Mercury Distribution And Organic Matter Deposition In The Arctic |
title_full_unstemmed |
Recent Alterations of Aerosol Concentration, Mercury Distribution And Organic Matter Deposition In The Arctic |
title_sort |
recent alterations of aerosol concentration, mercury distribution and organic matter deposition in the arctic |
publisher |
Walter de Gruyter GmbH |
publishDate |
2011 |
url |
http://dx.doi.org/10.2478/v10190-010-0002-9 https://www.degruyter.com/view/j/igbp.2011.18.issue-1/v10190-010-0002-9/v10190-010-0002-9.pdf |
geographic |
Arctic Antarctic Barents Sea |
geographic_facet |
Arctic Antarctic Barents Sea |
genre |
Antarc* Antarctic Arctic Barents Sea Spitsbergen |
genre_facet |
Antarc* Antarctic Arctic Barents Sea Spitsbergen |
op_source |
Papers on Global Change IGBP volume 18, issue 1 ISSN 1730-802X |
op_doi |
https://doi.org/10.2478/v10190-010-0002-9 |
container_title |
Papers on Global Change IGBP |
container_volume |
18 |
container_issue |
1 |
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1766285051884994560 |