Large perturbations of ammonium and organic acids content in the Summit-Greenland ice core. Fingerprint from forest fires? ...
Biomass burning is influencing the atmospheric chemistry by emitting large amounts of reactive species such as hydrocarbons, organic acids and nitrogen compounds [Andreae et al., 1988]. Polar ice cores provide a unique record of precipitation whose chemistry reflects the atmospheric composition at t...
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University of Bern
1992
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Online Access: | https://dx.doi.org/10.48350/158780 https://boris-portal.unibe.ch/handle/20.500.12422/43386 |
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ftdatacite:10.48350/158780 2024-10-13T14:07:40+00:00 Large perturbations of ammonium and organic acids content in the Summit-Greenland ice core. Fingerprint from forest fires? ... Legrand, M. De Angelis, M. Staffelbach, T. Neftel, A. Stauffer, Bernhard 1992 https://dx.doi.org/10.48350/158780 https://boris-portal.unibe.ch/handle/20.500.12422/43386 en eng University of Bern Text JournalArticle ScholarlyArticle article-journal 1992 ftdatacite https://doi.org/10.48350/158780 2024-10-01T11:43:08Z Biomass burning is influencing the atmospheric chemistry by emitting large amounts of reactive species such as hydrocarbons, organic acids and nitrogen compounds [Andreae et al., 1988]. Polar ice cores provide a unique record of precipitation whose chemistry reflects the atmospheric composition at the time of deposition. The analysis of such ice samples therefore allows an estimate to be made of the concentration of atmospheric impurities in the past. During the first season of the deep drill operation (GRIP) at Summit, Central Greenland (72° 34' N, 37° 38'W) continuous ammonium (NH4+) measurements were performed between 100 and 600 m depth covering the time period from 330 to 2500 years B.P. The NH4+ concentrations show seasonal variations between 1–20 ng.g−1 with some sporadic high values up to 600 ng.g−1 in narrow layers. The chemical fingerprint points to biomass burning causing the high ammonium peaks. ... Article in Journal/Newspaper Greenland Greenland ice core GRIP ice core DataCite Greenland |
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Open Polar |
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DataCite |
op_collection_id |
ftdatacite |
language |
English |
description |
Biomass burning is influencing the atmospheric chemistry by emitting large amounts of reactive species such as hydrocarbons, organic acids and nitrogen compounds [Andreae et al., 1988]. Polar ice cores provide a unique record of precipitation whose chemistry reflects the atmospheric composition at the time of deposition. The analysis of such ice samples therefore allows an estimate to be made of the concentration of atmospheric impurities in the past. During the first season of the deep drill operation (GRIP) at Summit, Central Greenland (72° 34' N, 37° 38'W) continuous ammonium (NH4+) measurements were performed between 100 and 600 m depth covering the time period from 330 to 2500 years B.P. The NH4+ concentrations show seasonal variations between 1–20 ng.g−1 with some sporadic high values up to 600 ng.g−1 in narrow layers. The chemical fingerprint points to biomass burning causing the high ammonium peaks. ... |
format |
Article in Journal/Newspaper |
author |
Legrand, M. De Angelis, M. Staffelbach, T. Neftel, A. Stauffer, Bernhard |
spellingShingle |
Legrand, M. De Angelis, M. Staffelbach, T. Neftel, A. Stauffer, Bernhard Large perturbations of ammonium and organic acids content in the Summit-Greenland ice core. Fingerprint from forest fires? ... |
author_facet |
Legrand, M. De Angelis, M. Staffelbach, T. Neftel, A. Stauffer, Bernhard |
author_sort |
Legrand, M. |
title |
Large perturbations of ammonium and organic acids content in the Summit-Greenland ice core. Fingerprint from forest fires? ... |
title_short |
Large perturbations of ammonium and organic acids content in the Summit-Greenland ice core. Fingerprint from forest fires? ... |
title_full |
Large perturbations of ammonium and organic acids content in the Summit-Greenland ice core. Fingerprint from forest fires? ... |
title_fullStr |
Large perturbations of ammonium and organic acids content in the Summit-Greenland ice core. Fingerprint from forest fires? ... |
title_full_unstemmed |
Large perturbations of ammonium and organic acids content in the Summit-Greenland ice core. Fingerprint from forest fires? ... |
title_sort |
large perturbations of ammonium and organic acids content in the summit-greenland ice core. fingerprint from forest fires? ... |
publisher |
University of Bern |
publishDate |
1992 |
url |
https://dx.doi.org/10.48350/158780 https://boris-portal.unibe.ch/handle/20.500.12422/43386 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland ice core GRIP ice core |
genre_facet |
Greenland Greenland ice core GRIP ice core |
op_doi |
https://doi.org/10.48350/158780 |
_version_ |
1812814166485893120 |