High-Resolution Tritium Profile in an Ice Core from Camp Century, Greenland
We measure 3 H in an ice core from Camp Century. The temporal distribution of 3 H concentration in the ice core corresponds generally well with the historical record of explosive yields of atmospheric nuclear weapons tests. Maximum 3 H values observed in 1962–1963 are comparable to those in ice core...
Published in: | Environmental Science & Technology |
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2021
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Online Access: | https://orbit.dtu.dk/en/publications/9e9695b0-134b-4448-bd28-caa28d477aa0 https://doi.org/10.1021/acs.est.1c01975 https://backend.orbit.dtu.dk/ws/files/259144488/acs.est.1c01975_1_.pdf |
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ftdtupubl:oai:pure.atira.dk:publications/9e9695b0-134b-4448-bd28-caa28d477aa0 2024-06-23T07:50:04+00:00 High-Resolution Tritium Profile in an Ice Core from Camp Century, Greenland Qiao, Jixin Colgan, William Jakobs, Gunnar Nielsen, Sven 2021 application/pdf https://orbit.dtu.dk/en/publications/9e9695b0-134b-4448-bd28-caa28d477aa0 https://doi.org/10.1021/acs.est.1c01975 https://backend.orbit.dtu.dk/ws/files/259144488/acs.est.1c01975_1_.pdf eng eng https://orbit.dtu.dk/en/publications/9e9695b0-134b-4448-bd28-caa28d477aa0 info:eu-repo/semantics/openAccess Qiao , J , Colgan , W , Jakobs , G & Nielsen , S 2021 , ' High-Resolution Tritium Profile in an Ice Core from Camp Century, Greenland ' , Environmental Science and Technology , vol. 55 , pp. 13638−13645 . https://doi.org/10.1021/acs.est.1c01975 Camp Century Ice core Source Tracer application Tritium article 2021 ftdtupubl https://doi.org/10.1021/acs.est.1c01975 2024-06-04T15:32:21Z We measure 3 H in an ice core from Camp Century. The temporal distribution of 3 H concentration in the ice core corresponds generally well with the historical record of explosive yields of atmospheric nuclear weapons tests. Maximum 3 H values observed in 1962–1963 are comparable to those in ice core or precipitation in many other locations in the Northern Hemisphere. There is no indication that significant 3 H contamination was locally released into the air during the operation of the Camp Century reactor. It is, however, somewhat surprising that several prominent 3 H peaks are still observed after 1980. We suggest that these are associated with airborne 3 H releases from the civil nuclear industry. A wavelet analysis during 1970–2017 indicates the primary frequency of variability in the 3 H record is annual 3 H peaks. These annual peaks can be combined with the 3 H spikes from global fallout of known nuclear weapons tests to benchmark and evaluate theoretical ice core dating scales back to the 1950s. A positive correlation is observed between annual 3 H average concentration and variability of Arctic Oscillation (AO). This highlights the value of 3 H as a potential tracer for air masses and airborne pollutants in the Arctic. Article in Journal/Newspaper Arctic Greenland ice core Technical University of Denmark: DTU Orbit Arctic Greenland Environmental Science & Technology 55 20 13638 13645 |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
Camp Century Ice core Source Tracer application Tritium |
spellingShingle |
Camp Century Ice core Source Tracer application Tritium Qiao, Jixin Colgan, William Jakobs, Gunnar Nielsen, Sven High-Resolution Tritium Profile in an Ice Core from Camp Century, Greenland |
topic_facet |
Camp Century Ice core Source Tracer application Tritium |
description |
We measure 3 H in an ice core from Camp Century. The temporal distribution of 3 H concentration in the ice core corresponds generally well with the historical record of explosive yields of atmospheric nuclear weapons tests. Maximum 3 H values observed in 1962–1963 are comparable to those in ice core or precipitation in many other locations in the Northern Hemisphere. There is no indication that significant 3 H contamination was locally released into the air during the operation of the Camp Century reactor. It is, however, somewhat surprising that several prominent 3 H peaks are still observed after 1980. We suggest that these are associated with airborne 3 H releases from the civil nuclear industry. A wavelet analysis during 1970–2017 indicates the primary frequency of variability in the 3 H record is annual 3 H peaks. These annual peaks can be combined with the 3 H spikes from global fallout of known nuclear weapons tests to benchmark and evaluate theoretical ice core dating scales back to the 1950s. A positive correlation is observed between annual 3 H average concentration and variability of Arctic Oscillation (AO). This highlights the value of 3 H as a potential tracer for air masses and airborne pollutants in the Arctic. |
format |
Article in Journal/Newspaper |
author |
Qiao, Jixin Colgan, William Jakobs, Gunnar Nielsen, Sven |
author_facet |
Qiao, Jixin Colgan, William Jakobs, Gunnar Nielsen, Sven |
author_sort |
Qiao, Jixin |
title |
High-Resolution Tritium Profile in an Ice Core from Camp Century, Greenland |
title_short |
High-Resolution Tritium Profile in an Ice Core from Camp Century, Greenland |
title_full |
High-Resolution Tritium Profile in an Ice Core from Camp Century, Greenland |
title_fullStr |
High-Resolution Tritium Profile in an Ice Core from Camp Century, Greenland |
title_full_unstemmed |
High-Resolution Tritium Profile in an Ice Core from Camp Century, Greenland |
title_sort |
high-resolution tritium profile in an ice core from camp century, greenland |
publishDate |
2021 |
url |
https://orbit.dtu.dk/en/publications/9e9695b0-134b-4448-bd28-caa28d477aa0 https://doi.org/10.1021/acs.est.1c01975 https://backend.orbit.dtu.dk/ws/files/259144488/acs.est.1c01975_1_.pdf |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Greenland ice core |
genre_facet |
Arctic Greenland ice core |
op_source |
Qiao , J , Colgan , W , Jakobs , G & Nielsen , S 2021 , ' High-Resolution Tritium Profile in an Ice Core from Camp Century, Greenland ' , Environmental Science and Technology , vol. 55 , pp. 13638−13645 . https://doi.org/10.1021/acs.est.1c01975 |
op_relation |
https://orbit.dtu.dk/en/publications/9e9695b0-134b-4448-bd28-caa28d477aa0 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1021/acs.est.1c01975 |
container_title |
Environmental Science & Technology |
container_volume |
55 |
container_issue |
20 |
container_start_page |
13638 |
op_container_end_page |
13645 |
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1802640827586969600 |