Oxygen Isotopes in Tree Rings from Greenland: A New Proxy of NAO
We present the first Greenlandic tree ring oxygen isotope record (δ18OGTR), derived from four birch trees collected from the Qinguadalen Valley in southwestern Greenland in 1999. Our δ18O record spans from 1950–1999 and is significantly and positively correlated with winter ice core δ18O from southe...
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ftmdpi:oai:mdpi.com:/2073-4433/12/1/39/ 2023-08-20T04:06:46+02:00 Oxygen Isotopes in Tree Rings from Greenland: A New Proxy of NAO Chenxi Xu Brendan M. Buckley Shih-Yu Simon Wang Wenling An Zhen Li Takeshi Nakatsuka Zhengtang Guo agris 2020-12-30 application/pdf https://doi.org/10.3390/atmos12010039 EN eng Multidisciplinary Digital Publishing Institute Climatology https://dx.doi.org/10.3390/atmos12010039 https://creativecommons.org/licenses/by/4.0/ Atmosphere; Volume 12; Issue 1; Pages: 39 tree ring δ 18 O ice core δ 18 O greenland North Atlantic Oscillation Text 2020 ftmdpi https://doi.org/10.3390/atmos12010039 2023-08-01T00:45:37Z We present the first Greenlandic tree ring oxygen isotope record (δ18OGTR), derived from four birch trees collected from the Qinguadalen Valley in southwestern Greenland in 1999. Our δ18O record spans from 1950–1999 and is significantly and positively correlated with winter ice core δ18O from southern Greenland. δ18OGTR records are positively correlated with southwestern Greenland January–August mean temperatures. North Atlantic Oscillation (NAO) reconstructions have been developed from a variety of proxies, but never with Greenlandic tree rings, and our δ18OGTR record is significantly correlated with NAO (r = −0.64), and spatial correlations with sea-level pressure indicate a classic NAO pressure seesaw pattern. These results may facilitate a longer NAO reconstruction based on long time series of tree ring δ18O records from Greenland, provided that subfossil wood can be found in areas vacated by melting glaciers. Text Greenland greenlandic ice core North Atlantic North Atlantic oscillation MDPI Open Access Publishing Greenland Atmosphere 12 1 39 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
tree ring δ 18 O ice core δ 18 O greenland North Atlantic Oscillation |
spellingShingle |
tree ring δ 18 O ice core δ 18 O greenland North Atlantic Oscillation Chenxi Xu Brendan M. Buckley Shih-Yu Simon Wang Wenling An Zhen Li Takeshi Nakatsuka Zhengtang Guo Oxygen Isotopes in Tree Rings from Greenland: A New Proxy of NAO |
topic_facet |
tree ring δ 18 O ice core δ 18 O greenland North Atlantic Oscillation |
description |
We present the first Greenlandic tree ring oxygen isotope record (δ18OGTR), derived from four birch trees collected from the Qinguadalen Valley in southwestern Greenland in 1999. Our δ18O record spans from 1950–1999 and is significantly and positively correlated with winter ice core δ18O from southern Greenland. δ18OGTR records are positively correlated with southwestern Greenland January–August mean temperatures. North Atlantic Oscillation (NAO) reconstructions have been developed from a variety of proxies, but never with Greenlandic tree rings, and our δ18OGTR record is significantly correlated with NAO (r = −0.64), and spatial correlations with sea-level pressure indicate a classic NAO pressure seesaw pattern. These results may facilitate a longer NAO reconstruction based on long time series of tree ring δ18O records from Greenland, provided that subfossil wood can be found in areas vacated by melting glaciers. |
format |
Text |
author |
Chenxi Xu Brendan M. Buckley Shih-Yu Simon Wang Wenling An Zhen Li Takeshi Nakatsuka Zhengtang Guo |
author_facet |
Chenxi Xu Brendan M. Buckley Shih-Yu Simon Wang Wenling An Zhen Li Takeshi Nakatsuka Zhengtang Guo |
author_sort |
Chenxi Xu |
title |
Oxygen Isotopes in Tree Rings from Greenland: A New Proxy of NAO |
title_short |
Oxygen Isotopes in Tree Rings from Greenland: A New Proxy of NAO |
title_full |
Oxygen Isotopes in Tree Rings from Greenland: A New Proxy of NAO |
title_fullStr |
Oxygen Isotopes in Tree Rings from Greenland: A New Proxy of NAO |
title_full_unstemmed |
Oxygen Isotopes in Tree Rings from Greenland: A New Proxy of NAO |
title_sort |
oxygen isotopes in tree rings from greenland: a new proxy of nao |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2020 |
url |
https://doi.org/10.3390/atmos12010039 |
op_coverage |
agris |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland greenlandic ice core North Atlantic North Atlantic oscillation |
genre_facet |
Greenland greenlandic ice core North Atlantic North Atlantic oscillation |
op_source |
Atmosphere; Volume 12; Issue 1; Pages: 39 |
op_relation |
Climatology https://dx.doi.org/10.3390/atmos12010039 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/atmos12010039 |
container_title |
Atmosphere |
container_volume |
12 |
container_issue |
1 |
container_start_page |
39 |
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1774718065784651776 |