Nitrate in Greenland and Antarctic ice cores: a detailed description of post-depositional processes
A compilation of nitrate (NO(3)(-)) data from Greenland has shown that recent NO(3)(-) concentrations reveal a temperature dependence similar to that seen in Antarctica. Except for sites with very low accumulation rates, lower temperatures tend to lead to higher NO(3)(-) concentrations preserved in...
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International Glaciological Society
2002
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ftnerc:oai:nora.nerc.ac.uk:17417 2023-05-15T13:29:46+02:00 Nitrate in Greenland and Antarctic ice cores: a detailed description of post-depositional processes Röthlisberger, Regine Hutterli, Manuel A. Wolff, Eric W. Mulvaney, Robert Fischer, Hubertus Bigler, Matthias Goto-Azuma, Kumiko Hansson, Margareta E. Ruth, Urs Siggaard-Andersen, Marie-Louise Steffensen, Jørgen P. 2002 http://nora.nerc.ac.uk/id/eprint/17417/ unknown International Glaciological Society Röthlisberger, Regine; Hutterli, Manuel A.; Wolff, Eric W.; Mulvaney, Robert orcid:0000-0002-5372-8148 Fischer, Hubertus; Bigler, Matthias; Goto-Azuma, Kumiko; Hansson, Margareta E.; Ruth, Urs; Siggaard-Andersen, Marie-Louise; Steffensen, Jørgen P. 2002 Nitrate in Greenland and Antarctic ice cores: a detailed description of post-depositional processes. Annals of Glaciology, 35. 209-216. https://doi.org/10.3189/172756402781817220 <https://doi.org/10.3189/172756402781817220> Chemistry Publication - Article PeerReviewed 2002 ftnerc https://doi.org/10.3189/172756402781817220 2023-02-04T19:31:05Z A compilation of nitrate (NO(3)(-)) data from Greenland has shown that recent NO(3)(-) concentrations reveal a temperature dependence similar to that seen in Antarctica. Except for sites with very low accumulation rates, lower temperatures tend to lead to higher NO(3)(-) concentrations preserved in the ice. Accumulation rate, which is closely linked to temperature, might influence the concentrations preserved in snow as well, but its effect cannot be separated from the temperature imprint. Processes involved in NO(3)(-) deposition are discussed and shown to be temperature- and/or accumulation-rate-dependent. Apart from scavenging of nitric acid (HNO(3)) during formation of precipitation, uptake of HNO(3) onto the ice crystal's surface during and after precipitation seems to contribute further to the NO(3)(-) concentrations found in surface snow. Post-depositional loss of NO(3)(-) from the top snow layers is caused by release of HNO(3) and by photolysis of NO(3)(-). It is suggested that photolysis accounts for considerable losses at sites with very low accumulation rates. Depending on the site characteristic, and given that the temperature and accumulation-rate dependence is quantified, it should be possible to infer changes in atmospheric HNO(3) concentrations. Article in Journal/Newspaper Annals of Glaciology Antarc* Antarctic Antarctica Greenland Natural Environment Research Council: NERC Open Research Archive Antarctic Greenland Annals of Glaciology 35 209 216 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Chemistry |
spellingShingle |
Chemistry Röthlisberger, Regine Hutterli, Manuel A. Wolff, Eric W. Mulvaney, Robert Fischer, Hubertus Bigler, Matthias Goto-Azuma, Kumiko Hansson, Margareta E. Ruth, Urs Siggaard-Andersen, Marie-Louise Steffensen, Jørgen P. Nitrate in Greenland and Antarctic ice cores: a detailed description of post-depositional processes |
topic_facet |
Chemistry |
description |
A compilation of nitrate (NO(3)(-)) data from Greenland has shown that recent NO(3)(-) concentrations reveal a temperature dependence similar to that seen in Antarctica. Except for sites with very low accumulation rates, lower temperatures tend to lead to higher NO(3)(-) concentrations preserved in the ice. Accumulation rate, which is closely linked to temperature, might influence the concentrations preserved in snow as well, but its effect cannot be separated from the temperature imprint. Processes involved in NO(3)(-) deposition are discussed and shown to be temperature- and/or accumulation-rate-dependent. Apart from scavenging of nitric acid (HNO(3)) during formation of precipitation, uptake of HNO(3) onto the ice crystal's surface during and after precipitation seems to contribute further to the NO(3)(-) concentrations found in surface snow. Post-depositional loss of NO(3)(-) from the top snow layers is caused by release of HNO(3) and by photolysis of NO(3)(-). It is suggested that photolysis accounts for considerable losses at sites with very low accumulation rates. Depending on the site characteristic, and given that the temperature and accumulation-rate dependence is quantified, it should be possible to infer changes in atmospheric HNO(3) concentrations. |
format |
Article in Journal/Newspaper |
author |
Röthlisberger, Regine Hutterli, Manuel A. Wolff, Eric W. Mulvaney, Robert Fischer, Hubertus Bigler, Matthias Goto-Azuma, Kumiko Hansson, Margareta E. Ruth, Urs Siggaard-Andersen, Marie-Louise Steffensen, Jørgen P. |
author_facet |
Röthlisberger, Regine Hutterli, Manuel A. Wolff, Eric W. Mulvaney, Robert Fischer, Hubertus Bigler, Matthias Goto-Azuma, Kumiko Hansson, Margareta E. Ruth, Urs Siggaard-Andersen, Marie-Louise Steffensen, Jørgen P. |
author_sort |
Röthlisberger, Regine |
title |
Nitrate in Greenland and Antarctic ice cores: a detailed description of post-depositional processes |
title_short |
Nitrate in Greenland and Antarctic ice cores: a detailed description of post-depositional processes |
title_full |
Nitrate in Greenland and Antarctic ice cores: a detailed description of post-depositional processes |
title_fullStr |
Nitrate in Greenland and Antarctic ice cores: a detailed description of post-depositional processes |
title_full_unstemmed |
Nitrate in Greenland and Antarctic ice cores: a detailed description of post-depositional processes |
title_sort |
nitrate in greenland and antarctic ice cores: a detailed description of post-depositional processes |
publisher |
International Glaciological Society |
publishDate |
2002 |
url |
http://nora.nerc.ac.uk/id/eprint/17417/ |
geographic |
Antarctic Greenland |
geographic_facet |
Antarctic Greenland |
genre |
Annals of Glaciology Antarc* Antarctic Antarctica Greenland |
genre_facet |
Annals of Glaciology Antarc* Antarctic Antarctica Greenland |
op_relation |
Röthlisberger, Regine; Hutterli, Manuel A.; Wolff, Eric W.; Mulvaney, Robert orcid:0000-0002-5372-8148 Fischer, Hubertus; Bigler, Matthias; Goto-Azuma, Kumiko; Hansson, Margareta E.; Ruth, Urs; Siggaard-Andersen, Marie-Louise; Steffensen, Jørgen P. 2002 Nitrate in Greenland and Antarctic ice cores: a detailed description of post-depositional processes. Annals of Glaciology, 35. 209-216. https://doi.org/10.3189/172756402781817220 <https://doi.org/10.3189/172756402781817220> |
op_doi |
https://doi.org/10.3189/172756402781817220 |
container_title |
Annals of Glaciology |
container_volume |
35 |
container_start_page |
209 |
op_container_end_page |
216 |
_version_ |
1766002744088330240 |