115 year ice-core data from Akademii Nauk ice cap Severnaya Zemlya: high-resolution record of Eurasian Arctic climate change
From 1999 to 2001 a 724 m deep ice core was drilled on Akademii Nauk ice cap, Severnaya Zemlya, to gain high-resolution proxy data from the central Russian Arctic. Despite strong summertime meltwater percolation, this ice core provides valuable information on the regional climate and environmental h...
Published in: | Journal of Glaciology |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
International Glaciological Society
2009
|
Subjects: | |
Online Access: | https://boris.unibe.ch/37519/1/115-year-ice-core-data-from-akademii-nauk-ice-cap-severnaya-zemlya-high-resolution-record-of-eurasian-arctic-climate-change.pdf https://boris.unibe.ch/37519/ |
id |
ftunivbern:oai:boris.unibe.ch:37519 |
---|---|
record_format |
openpolar |
spelling |
ftunivbern:oai:boris.unibe.ch:37519 2023-08-20T04:02:59+02:00 115 year ice-core data from Akademii Nauk ice cap Severnaya Zemlya: high-resolution record of Eurasian Arctic climate change Opel, Thomas Fritzsche, Diedrich Meyer, Hanno Schütt, Rainer Weiler, Karin Ruth, Urs Wilhelms, Frank Fischer, Hubertus 2009 application/pdf https://boris.unibe.ch/37519/1/115-year-ice-core-data-from-akademii-nauk-ice-cap-severnaya-zemlya-high-resolution-record-of-eurasian-arctic-climate-change.pdf https://boris.unibe.ch/37519/ eng eng International Glaciological Society https://boris.unibe.ch/37519/ info:eu-repo/semantics/restrictedAccess Opel, Thomas; Fritzsche, Diedrich; Meyer, Hanno; Schütt, Rainer; Weiler, Karin; Ruth, Urs; Wilhelms, Frank; Fischer, Hubertus (2009). 115 year ice-core data from Akademii Nauk ice cap Severnaya Zemlya: high-resolution record of Eurasian Arctic climate change. Journal of glaciology, 55(189), pp. 21-31. Cambridge: International Glaciological Society 10.3189/002214309788609029 <http://dx.doi.org/10.3189/002214309788609029> 530 Physics info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed 2009 ftunivbern https://doi.org/10.3189/002214309788609029 2023-07-31T20:59:40Z From 1999 to 2001 a 724 m deep ice core was drilled on Akademii Nauk ice cap, Severnaya Zemlya, to gain high-resolution proxy data from the central Russian Arctic. Despite strong summertime meltwater percolation, this ice core provides valuable information on the regional climate and environmental history. We present data of stable water isotopes, melt-layer content and major ions from the uppermost 57 m of this core, covering the period 1883–1998. Dating was achieved by counting seasonal isotopic cycles and using reference horizons. Multi-annual δ18O values reflect Eurasian sub-Arctic and Arctic surface air-temperature variations. We found strong correlations to instrumental temperature data from some stations (e.g. r = 0.62 for Vardø, northern Norway). The δ18O values show pronounced 20th-century temperature changes, with a strong rise about 1920 and the absolute temperature maximum in the 1930s. A recent decrease in the deuterium-excess time series indicates an increasing role of the Kara Sea as a regional moisture source. From the multi-annual ion variations we deduced decreasing sea-salt aerosol trends in the 20th century, as reflected by sodium and chloride, whereas sulphate and nitrate are strongly affected by anthropogenic pollution. Article in Journal/Newspaper Arctic Arctic Climate change Ice cap ice core Journal of Glaciology Kara Sea Northern Norway Severnaya Zemlya BORIS (Bern Open Repository and Information System, University of Bern) Arctic Kara Sea Norway Severnaya Zemlya ENVELOPE(98.000,98.000,79.500,79.500) Vardø ENVELOPE(31.109,31.109,70.370,70.370) Journal of Glaciology 55 189 21 31 |
institution |
Open Polar |
collection |
BORIS (Bern Open Repository and Information System, University of Bern) |
op_collection_id |
ftunivbern |
language |
English |
topic |
530 Physics |
spellingShingle |
530 Physics Opel, Thomas Fritzsche, Diedrich Meyer, Hanno Schütt, Rainer Weiler, Karin Ruth, Urs Wilhelms, Frank Fischer, Hubertus 115 year ice-core data from Akademii Nauk ice cap Severnaya Zemlya: high-resolution record of Eurasian Arctic climate change |
topic_facet |
530 Physics |
description |
From 1999 to 2001 a 724 m deep ice core was drilled on Akademii Nauk ice cap, Severnaya Zemlya, to gain high-resolution proxy data from the central Russian Arctic. Despite strong summertime meltwater percolation, this ice core provides valuable information on the regional climate and environmental history. We present data of stable water isotopes, melt-layer content and major ions from the uppermost 57 m of this core, covering the period 1883–1998. Dating was achieved by counting seasonal isotopic cycles and using reference horizons. Multi-annual δ18O values reflect Eurasian sub-Arctic and Arctic surface air-temperature variations. We found strong correlations to instrumental temperature data from some stations (e.g. r = 0.62 for Vardø, northern Norway). The δ18O values show pronounced 20th-century temperature changes, with a strong rise about 1920 and the absolute temperature maximum in the 1930s. A recent decrease in the deuterium-excess time series indicates an increasing role of the Kara Sea as a regional moisture source. From the multi-annual ion variations we deduced decreasing sea-salt aerosol trends in the 20th century, as reflected by sodium and chloride, whereas sulphate and nitrate are strongly affected by anthropogenic pollution. |
format |
Article in Journal/Newspaper |
author |
Opel, Thomas Fritzsche, Diedrich Meyer, Hanno Schütt, Rainer Weiler, Karin Ruth, Urs Wilhelms, Frank Fischer, Hubertus |
author_facet |
Opel, Thomas Fritzsche, Diedrich Meyer, Hanno Schütt, Rainer Weiler, Karin Ruth, Urs Wilhelms, Frank Fischer, Hubertus |
author_sort |
Opel, Thomas |
title |
115 year ice-core data from Akademii Nauk ice cap Severnaya Zemlya: high-resolution record of Eurasian Arctic climate change |
title_short |
115 year ice-core data from Akademii Nauk ice cap Severnaya Zemlya: high-resolution record of Eurasian Arctic climate change |
title_full |
115 year ice-core data from Akademii Nauk ice cap Severnaya Zemlya: high-resolution record of Eurasian Arctic climate change |
title_fullStr |
115 year ice-core data from Akademii Nauk ice cap Severnaya Zemlya: high-resolution record of Eurasian Arctic climate change |
title_full_unstemmed |
115 year ice-core data from Akademii Nauk ice cap Severnaya Zemlya: high-resolution record of Eurasian Arctic climate change |
title_sort |
115 year ice-core data from akademii nauk ice cap severnaya zemlya: high-resolution record of eurasian arctic climate change |
publisher |
International Glaciological Society |
publishDate |
2009 |
url |
https://boris.unibe.ch/37519/1/115-year-ice-core-data-from-akademii-nauk-ice-cap-severnaya-zemlya-high-resolution-record-of-eurasian-arctic-climate-change.pdf https://boris.unibe.ch/37519/ |
long_lat |
ENVELOPE(98.000,98.000,79.500,79.500) ENVELOPE(31.109,31.109,70.370,70.370) |
geographic |
Arctic Kara Sea Norway Severnaya Zemlya Vardø |
geographic_facet |
Arctic Kara Sea Norway Severnaya Zemlya Vardø |
genre |
Arctic Arctic Climate change Ice cap ice core Journal of Glaciology Kara Sea Northern Norway Severnaya Zemlya |
genre_facet |
Arctic Arctic Climate change Ice cap ice core Journal of Glaciology Kara Sea Northern Norway Severnaya Zemlya |
op_source |
Opel, Thomas; Fritzsche, Diedrich; Meyer, Hanno; Schütt, Rainer; Weiler, Karin; Ruth, Urs; Wilhelms, Frank; Fischer, Hubertus (2009). 115 year ice-core data from Akademii Nauk ice cap Severnaya Zemlya: high-resolution record of Eurasian Arctic climate change. Journal of glaciology, 55(189), pp. 21-31. Cambridge: International Glaciological Society 10.3189/002214309788609029 <http://dx.doi.org/10.3189/002214309788609029> |
op_relation |
https://boris.unibe.ch/37519/ |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.3189/002214309788609029 |
container_title |
Journal of Glaciology |
container_volume |
55 |
container_issue |
189 |
container_start_page |
21 |
op_container_end_page |
31 |
_version_ |
1774713482349903872 |