Annual-layer thickness, δ¹⁸O and sodium values on Akademii Nauk ice core (AD 900-1998) based on core chronology AN 2012, supplement to: Opel, Thomas; Fritzsche, Diedrich; Meyer, Hanno (2013): Eurasian Arctic climate over the past millennium as recorded in the Akademii Nauk ice core (Severnaya Zemlya). Climate of the Past, 9(5), 2379-2389
Understanding recent Arctic climate change requires detailed information on past changes, in particular on a regional scale. The extension of the depth–age relation of the Akademii Nauk (AN) ice core from Severnaya Zemlya (SZ) to the last 1100 yr provides new perspectives on past climate fluctuation...
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Online Access: | https://dx.doi.org/10.1594/pangaea.824732 https://doi.pangaea.de/10.1594/PANGAEA.824732 |
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ftdatacite:10.1594/pangaea.824732 2023-05-15T14:50:05+02:00 Annual-layer thickness, δ¹⁸O and sodium values on Akademii Nauk ice core (AD 900-1998) based on core chronology AN 2012, supplement to: Opel, Thomas; Fritzsche, Diedrich; Meyer, Hanno (2013): Eurasian Arctic climate over the past millennium as recorded in the Akademii Nauk ice core (Severnaya Zemlya). Climate of the Past, 9(5), 2379-2389 Opel, Thomas Fritzsche, Diedrich Meyer, Hanno 2013 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.824732 https://doi.pangaea.de/10.1594/PANGAEA.824732 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.5194/cp-9-2379-2013 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY AGE Age Annual layer thickness δ18O, water Sodium Ice drill Mass spectrometer Finnigan Delta-S Ion chromatography IC20 Dionex Corp. RU-Land_1999/2001_SevernayaZemly AWI Arctic Land Expedition Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn Supplementary Dataset dataset Dataset 2013 ftdatacite https://doi.org/10.1594/pangaea.824732 https://doi.org/10.5194/cp-9-2379-2013 2021-11-05T12:55:41Z Understanding recent Arctic climate change requires detailed information on past changes, in particular on a regional scale. The extension of the depth–age relation of the Akademii Nauk (AN) ice core from Severnaya Zemlya (SZ) to the last 1100 yr provides new perspectives on past climate fluctuations in the Barents and Kara seas region. Here, we present the easternmost high-resolution ice-core climate proxy records (d18O and sodium) from the Arctic. Multi-annual AN d18O data as near-surface air-temperature proxies reveal major temperature changes over the last millennium, including the absolute minimum around 1800 and the unprecedented warming to a double-peak maximum in the early 20th century. The long-term cooling trend in d18O is related to a decline in summer insolation but also to the growth of the AN ice cap as indicated by decreasing sodium concentrations. Neither a pronounced Medieval Climate Anomaly nor a Little Ice Age are detectable in the AN d18O record. In contrast, there is evidence of several abrupt warming and cooling events, such as in the 15th and 16th centuries, partly accompanied by corresponding changes in sodium concentrations. These abrupt changes are assumed to be related to sea-ice cover variability in the Barents and Kara seas region, which might be caused by shifts in atmospheric circulation patterns. Our results indicate a significant impact of internal climate variability on Arctic climate change in the last millennium. Dataset Arctic Climate change Ice Ice cap ice core permafrost Sea ice Severnaya Zemlya DataCite Metadata Store (German National Library of Science and Technology) Arctic Severnaya Zemlya ENVELOPE(98.000,98.000,79.500,79.500) Hanno ENVELOPE(17.444,17.444,66.301,66.301) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
AGE Age Annual layer thickness δ18O, water Sodium Ice drill Mass spectrometer Finnigan Delta-S Ion chromatography IC20 Dionex Corp. RU-Land_1999/2001_SevernayaZemly AWI Arctic Land Expedition Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn |
spellingShingle |
AGE Age Annual layer thickness δ18O, water Sodium Ice drill Mass spectrometer Finnigan Delta-S Ion chromatography IC20 Dionex Corp. RU-Land_1999/2001_SevernayaZemly AWI Arctic Land Expedition Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn Opel, Thomas Fritzsche, Diedrich Meyer, Hanno Annual-layer thickness, δ¹⁸O and sodium values on Akademii Nauk ice core (AD 900-1998) based on core chronology AN 2012, supplement to: Opel, Thomas; Fritzsche, Diedrich; Meyer, Hanno (2013): Eurasian Arctic climate over the past millennium as recorded in the Akademii Nauk ice core (Severnaya Zemlya). Climate of the Past, 9(5), 2379-2389 |
topic_facet |
AGE Age Annual layer thickness δ18O, water Sodium Ice drill Mass spectrometer Finnigan Delta-S Ion chromatography IC20 Dionex Corp. RU-Land_1999/2001_SevernayaZemly AWI Arctic Land Expedition Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn |
description |
Understanding recent Arctic climate change requires detailed information on past changes, in particular on a regional scale. The extension of the depth–age relation of the Akademii Nauk (AN) ice core from Severnaya Zemlya (SZ) to the last 1100 yr provides new perspectives on past climate fluctuations in the Barents and Kara seas region. Here, we present the easternmost high-resolution ice-core climate proxy records (d18O and sodium) from the Arctic. Multi-annual AN d18O data as near-surface air-temperature proxies reveal major temperature changes over the last millennium, including the absolute minimum around 1800 and the unprecedented warming to a double-peak maximum in the early 20th century. The long-term cooling trend in d18O is related to a decline in summer insolation but also to the growth of the AN ice cap as indicated by decreasing sodium concentrations. Neither a pronounced Medieval Climate Anomaly nor a Little Ice Age are detectable in the AN d18O record. In contrast, there is evidence of several abrupt warming and cooling events, such as in the 15th and 16th centuries, partly accompanied by corresponding changes in sodium concentrations. These abrupt changes are assumed to be related to sea-ice cover variability in the Barents and Kara seas region, which might be caused by shifts in atmospheric circulation patterns. Our results indicate a significant impact of internal climate variability on Arctic climate change in the last millennium. |
format |
Dataset |
author |
Opel, Thomas Fritzsche, Diedrich Meyer, Hanno |
author_facet |
Opel, Thomas Fritzsche, Diedrich Meyer, Hanno |
author_sort |
Opel, Thomas |
title |
Annual-layer thickness, δ¹⁸O and sodium values on Akademii Nauk ice core (AD 900-1998) based on core chronology AN 2012, supplement to: Opel, Thomas; Fritzsche, Diedrich; Meyer, Hanno (2013): Eurasian Arctic climate over the past millennium as recorded in the Akademii Nauk ice core (Severnaya Zemlya). Climate of the Past, 9(5), 2379-2389 |
title_short |
Annual-layer thickness, δ¹⁸O and sodium values on Akademii Nauk ice core (AD 900-1998) based on core chronology AN 2012, supplement to: Opel, Thomas; Fritzsche, Diedrich; Meyer, Hanno (2013): Eurasian Arctic climate over the past millennium as recorded in the Akademii Nauk ice core (Severnaya Zemlya). Climate of the Past, 9(5), 2379-2389 |
title_full |
Annual-layer thickness, δ¹⁸O and sodium values on Akademii Nauk ice core (AD 900-1998) based on core chronology AN 2012, supplement to: Opel, Thomas; Fritzsche, Diedrich; Meyer, Hanno (2013): Eurasian Arctic climate over the past millennium as recorded in the Akademii Nauk ice core (Severnaya Zemlya). Climate of the Past, 9(5), 2379-2389 |
title_fullStr |
Annual-layer thickness, δ¹⁸O and sodium values on Akademii Nauk ice core (AD 900-1998) based on core chronology AN 2012, supplement to: Opel, Thomas; Fritzsche, Diedrich; Meyer, Hanno (2013): Eurasian Arctic climate over the past millennium as recorded in the Akademii Nauk ice core (Severnaya Zemlya). Climate of the Past, 9(5), 2379-2389 |
title_full_unstemmed |
Annual-layer thickness, δ¹⁸O and sodium values on Akademii Nauk ice core (AD 900-1998) based on core chronology AN 2012, supplement to: Opel, Thomas; Fritzsche, Diedrich; Meyer, Hanno (2013): Eurasian Arctic climate over the past millennium as recorded in the Akademii Nauk ice core (Severnaya Zemlya). Climate of the Past, 9(5), 2379-2389 |
title_sort |
annual-layer thickness, δ¹⁸o and sodium values on akademii nauk ice core (ad 900-1998) based on core chronology an 2012, supplement to: opel, thomas; fritzsche, diedrich; meyer, hanno (2013): eurasian arctic climate over the past millennium as recorded in the akademii nauk ice core (severnaya zemlya). climate of the past, 9(5), 2379-2389 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2013 |
url |
https://dx.doi.org/10.1594/pangaea.824732 https://doi.pangaea.de/10.1594/PANGAEA.824732 |
long_lat |
ENVELOPE(98.000,98.000,79.500,79.500) ENVELOPE(17.444,17.444,66.301,66.301) |
geographic |
Arctic Severnaya Zemlya Hanno |
geographic_facet |
Arctic Severnaya Zemlya Hanno |
genre |
Arctic Climate change Ice Ice cap ice core permafrost Sea ice Severnaya Zemlya |
genre_facet |
Arctic Climate change Ice Ice cap ice core permafrost Sea ice Severnaya Zemlya |
op_relation |
https://dx.doi.org/10.5194/cp-9-2379-2013 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.824732 https://doi.org/10.5194/cp-9-2379-2013 |
_version_ |
1766321152755499008 |