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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American Geophysical Union
1992
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ftdatacite:10.48350/158780 2023-05-15T16:27:14+02:00 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, B. 1992 https://dx.doi.org/10.48350/158780 https://boris.unibe.ch/158780/ unknown American Geophysical Union open access publisher holds copyright http://purl.org/coar/access_right/c_abf2 530 Physics Text article-journal journal article ScholarlyArticle 1992 ftdatacite https://doi.org/10.48350/158780 2021-11-05T12:55:41Z 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. Text Greenland Greenland ice core GRIP ice core DataCite Metadata Store (German National Library of Science and Technology) Greenland |
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topic |
530 Physics |
spellingShingle |
530 Physics Legrand, M. De Angelis, M. Staffelbach, T. Neftel, A. Stauffer, B. Large perturbations of ammonium and organic acids content in the Summit-Greenland ice core. Fingerprint from forest fires? |
topic_facet |
530 Physics |
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 |
Text |
author |
Legrand, M. De Angelis, M. Staffelbach, T. Neftel, A. Stauffer, B. |
author_facet |
Legrand, M. De Angelis, M. Staffelbach, T. Neftel, A. Stauffer, B. |
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 |
American Geophysical Union |
publishDate |
1992 |
url |
https://dx.doi.org/10.48350/158780 https://boris.unibe.ch/158780/ |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland ice core GRIP ice core |
genre_facet |
Greenland Greenland ice core GRIP ice core |
op_rights |
open access publisher holds copyright http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.48350/158780 |
_version_ |
1766016354967617536 |