Nitrate in Greenland and Antarctic ice cores: a detailed description of post-depositional processes ...
A compilation of nitrate (NO3 –) data from Greenland has shown that recent NO3 – 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 NO3 – concentrations preserved in the ice....
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2002
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ftdatacite:10.48350/158767 2024-09-15T17:48:54+00:00 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 https://dx.doi.org/10.48350/158767 https://boris.unibe.ch/158767/ unknown International Glaciological Society open access publisher holds copyright publisher holds copyright http://purl.org/coar/access_right/c_abf2 530 Physics Text ScholarlyArticle article-journal journal article 2002 ftdatacite https://doi.org/10.48350/158767 2024-09-02T10:17:31Z A compilation of nitrate (NO3 –) data from Greenland has shown that recent NO3 – 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 NO3 – 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 NO3 – deposition are discussed and shown to be temperature- and/or accumulation-rate-dependent. Apart from scavenging of nitric acid (HNO3) during formation of precipitation, uptake of HNO3 onto the ice crystal’s surface during and after precipitation seems to contribute further to the NO3 – concentrations found in surface snow. Post-depositional loss of NO3 – from the top snow layers is caused by release of HNO3 and by photolysis of NO3 –. It is suggested that photolysis accounts for considerable losses at ... Text Antarc* Antarctic Antarctica Greenland DataCite |
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530 Physics |
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530 Physics 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 |
530 Physics |
description |
A compilation of nitrate (NO3 –) data from Greenland has shown that recent NO3 – 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 NO3 – 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 NO3 – deposition are discussed and shown to be temperature- and/or accumulation-rate-dependent. Apart from scavenging of nitric acid (HNO3) during formation of precipitation, uptake of HNO3 onto the ice crystal’s surface during and after precipitation seems to contribute further to the NO3 – concentrations found in surface snow. Post-depositional loss of NO3 – from the top snow layers is caused by release of HNO3 and by photolysis of NO3 –. It is suggested that photolysis accounts for considerable losses at ... |
format |
Text |
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 |
https://dx.doi.org/10.48350/158767 https://boris.unibe.ch/158767/ |
genre |
Antarc* Antarctic Antarctica Greenland |
genre_facet |
Antarc* Antarctic Antarctica Greenland |
op_rights |
open access publisher holds copyright publisher holds copyright http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.48350/158767 |
_version_ |
1810290512377151488 |