HIGH-ACCURACY 14C MEASUREMENTS FOR ATMOSPHERIC CO2 SAMPLES BY AMS
In this paper, we investigate how to achieve high-accuracy radiocarbon measurements by accelerator mass spectrometry (AMS) and present measurement series (performed on archived CO2) of 14CO2 between 1985 and 1991 for Point Barrow (Alaska) and the South Pole. We report in detail the measurement plan,...
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ftunivarizonaojs:oai:journals.uair.arizona.edu:article/2881 2023-05-15T14:02:46+02:00 HIGH-ACCURACY 14C MEASUREMENTS FOR ATMOSPHERIC CO2 SAMPLES BY AMS Meijer, H J Pertuisot, M H van der Plicht, J 2006-01-01 application/pdf https://journals.uair.arizona.edu/index.php/radiocarbon/article/view/2881 eng eng Radiocarbon https://journals.uair.arizona.edu/index.php/radiocarbon/article/view/2881/2644 https://journals.uair.arizona.edu/index.php/radiocarbon/article/view/2881 Radiocarbon; Vol 48, No 3 (2006); 355-372 0033-8222 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 2006 ftunivarizonaojs 2020-11-14T17:53:01Z In this paper, we investigate how to achieve high-accuracy radiocarbon measurements by accelerator mass spectrometry (AMS) and present measurement series (performed on archived CO2) of 14CO2 between 1985 and 1991 for Point Barrow (Alaska) and the South Pole. We report in detail the measurement plan, the error sources, and the calibration scheme that enabled us to reach a combined uncertainty of better than 3. The d13C correction and a suggestion for a span (or 2- point) calibration for the 14C scale are discussed in detail. In addition, we report new, accurate values for the calibration and reference materials Ox2 and IAEA-C6 with respect to Ox1. The atmospheric 14CO2 records (19851991) are presented as well and are compared with other existing records for that period. The Point Barrow record agrees very well with the existing Fruholmen (northern Norway) record from the same latitude. The South Pole record shows a small seasonal cycle but with an extreme phase with a maximum on January 1st (13 days). Together with its generally elevated 14C level compared to the Neumayer record (coastal Antarctica), this makes our South Pole data set a valuable additional source of information for global carbon cycle modeling using 14CO2 as a constraint. Article in Journal/Newspaper Antarc* Antarctica Barrow Northern Norway Point Barrow South pole South pole Alaska Journals at the University of Arizona Neumayer Norway South Pole |
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Open Polar |
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Journals at the University of Arizona |
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ftunivarizonaojs |
language |
English |
description |
In this paper, we investigate how to achieve high-accuracy radiocarbon measurements by accelerator mass spectrometry (AMS) and present measurement series (performed on archived CO2) of 14CO2 between 1985 and 1991 for Point Barrow (Alaska) and the South Pole. We report in detail the measurement plan, the error sources, and the calibration scheme that enabled us to reach a combined uncertainty of better than 3. The d13C correction and a suggestion for a span (or 2- point) calibration for the 14C scale are discussed in detail. In addition, we report new, accurate values for the calibration and reference materials Ox2 and IAEA-C6 with respect to Ox1. The atmospheric 14CO2 records (19851991) are presented as well and are compared with other existing records for that period. The Point Barrow record agrees very well with the existing Fruholmen (northern Norway) record from the same latitude. The South Pole record shows a small seasonal cycle but with an extreme phase with a maximum on January 1st (13 days). Together with its generally elevated 14C level compared to the Neumayer record (coastal Antarctica), this makes our South Pole data set a valuable additional source of information for global carbon cycle modeling using 14CO2 as a constraint. |
format |
Article in Journal/Newspaper |
author |
Meijer, H J Pertuisot, M H van der Plicht, J |
spellingShingle |
Meijer, H J Pertuisot, M H van der Plicht, J HIGH-ACCURACY 14C MEASUREMENTS FOR ATMOSPHERIC CO2 SAMPLES BY AMS |
author_facet |
Meijer, H J Pertuisot, M H van der Plicht, J |
author_sort |
Meijer, H J |
title |
HIGH-ACCURACY 14C MEASUREMENTS FOR ATMOSPHERIC CO2 SAMPLES BY AMS |
title_short |
HIGH-ACCURACY 14C MEASUREMENTS FOR ATMOSPHERIC CO2 SAMPLES BY AMS |
title_full |
HIGH-ACCURACY 14C MEASUREMENTS FOR ATMOSPHERIC CO2 SAMPLES BY AMS |
title_fullStr |
HIGH-ACCURACY 14C MEASUREMENTS FOR ATMOSPHERIC CO2 SAMPLES BY AMS |
title_full_unstemmed |
HIGH-ACCURACY 14C MEASUREMENTS FOR ATMOSPHERIC CO2 SAMPLES BY AMS |
title_sort |
high-accuracy 14c measurements for atmospheric co2 samples by ams |
publisher |
Radiocarbon |
publishDate |
2006 |
url |
https://journals.uair.arizona.edu/index.php/radiocarbon/article/view/2881 |
geographic |
Neumayer Norway South Pole |
geographic_facet |
Neumayer Norway South Pole |
genre |
Antarc* Antarctica Barrow Northern Norway Point Barrow South pole South pole Alaska |
genre_facet |
Antarc* Antarctica Barrow Northern Norway Point Barrow South pole South pole Alaska |
op_source |
Radiocarbon; Vol 48, No 3 (2006); 355-372 0033-8222 |
op_relation |
https://journals.uair.arizona.edu/index.php/radiocarbon/article/view/2881/2644 https://journals.uair.arizona.edu/index.php/radiocarbon/article/view/2881 |
_version_ |
1766273177076367360 |