Nitrate in polar ice
Nitrate is one of the major impurities in polar snow, and is relatively easy to analyse. Large amounts of data therefore exist, including some from cores extending into the last glaciation. However, the data are not easy to interpret, and we do not yet have an adequate knowledge of even the present-...
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1995
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Online Access: | http://nora.nerc.ac.uk/id/eprint/515900/ https://doi.org/10.1007/978-3-642-51172-1_10 |
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ftnerc:oai:nora.nerc.ac.uk:515900 2024-01-21T10:01:40+01:00 Nitrate in polar ice Wolff, Eric W. Delmas, Robert J. 1995 http://nora.nerc.ac.uk/id/eprint/515900/ https://doi.org/10.1007/978-3-642-51172-1_10 unknown Springer-Verlag Wolff, Eric W. 1995 Nitrate in polar ice. In: Delmas, Robert J., (ed.) Ice Core Studies of Global Biogeochemical Cycles. Berlin, Springer-Verlag, 195-224. (NATO ASI series, 30). Chemistry Publication - Book Section PeerReviewed 1995 ftnerc https://doi.org/10.1007/978-3-642-51172-1_10 2023-12-22T00:03:08Z Nitrate is one of the major impurities in polar snow, and is relatively easy to analyse. Large amounts of data therefore exist, including some from cores extending into the last glaciation. However, the data are not easy to interpret, and we do not yet have an adequate knowledge of even the present-day sources of nitrate to polar snow, nor of the deposition processes that control the concentrations seen. It is clear that anthropogenic pollution has increased the concentrations in Greenland snow by a factor of two in recent decades, and that no similar increase is seen in Antarctica. In pre-industrial Greenland ice, a clear seasonality allows annual layer counting. The sources in pre-industrial ice are probably lightning and/or the stratosphere, while soil exhalation may be an additional major component in Greenland. Whereas nitrate in Holocene ice is present as nitric acid, in ice from the last glaciation it is present as neutral salt, associated with terrestrial cations Book Part Antarc* Antarctica Greenland Natural Environment Research Council: NERC Open Research Archive Greenland 195 224 Berlin, Heidelberg |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Chemistry |
spellingShingle |
Chemistry Wolff, Eric W. Nitrate in polar ice |
topic_facet |
Chemistry |
description |
Nitrate is one of the major impurities in polar snow, and is relatively easy to analyse. Large amounts of data therefore exist, including some from cores extending into the last glaciation. However, the data are not easy to interpret, and we do not yet have an adequate knowledge of even the present-day sources of nitrate to polar snow, nor of the deposition processes that control the concentrations seen. It is clear that anthropogenic pollution has increased the concentrations in Greenland snow by a factor of two in recent decades, and that no similar increase is seen in Antarctica. In pre-industrial Greenland ice, a clear seasonality allows annual layer counting. The sources in pre-industrial ice are probably lightning and/or the stratosphere, while soil exhalation may be an additional major component in Greenland. Whereas nitrate in Holocene ice is present as nitric acid, in ice from the last glaciation it is present as neutral salt, associated with terrestrial cations |
author2 |
Delmas, Robert J. |
format |
Book Part |
author |
Wolff, Eric W. |
author_facet |
Wolff, Eric W. |
author_sort |
Wolff, Eric W. |
title |
Nitrate in polar ice |
title_short |
Nitrate in polar ice |
title_full |
Nitrate in polar ice |
title_fullStr |
Nitrate in polar ice |
title_full_unstemmed |
Nitrate in polar ice |
title_sort |
nitrate in polar ice |
publisher |
Springer-Verlag |
publishDate |
1995 |
url |
http://nora.nerc.ac.uk/id/eprint/515900/ https://doi.org/10.1007/978-3-642-51172-1_10 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica Greenland |
genre_facet |
Antarc* Antarctica Greenland |
op_relation |
Wolff, Eric W. 1995 Nitrate in polar ice. In: Delmas, Robert J., (ed.) Ice Core Studies of Global Biogeochemical Cycles. Berlin, Springer-Verlag, 195-224. (NATO ASI series, 30). |
op_doi |
https://doi.org/10.1007/978-3-642-51172-1_10 |
container_start_page |
195 |
op_container_end_page |
224 |
op_publisher_place |
Berlin, Heidelberg |
_version_ |
1788691711331926016 |