The climate signal recorded in the oxygen-isotope, accumulation and major-ion time series from the Eclipse ice core, Yukon Territory, Canada
The high accumulation rate, nearly complete preservation and detailed chronology of the Eclipse ice core, Yukon Territory, Canada, are well suited for comparison of the glaciochemical record with instrumental time series of temperature, precipitation and sea-level pressure. Results of cross-correlat...
Published in: | Annals of Glaciology |
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Online Access: | https://scholars.unh.edu/earthsci_facpub/536 https://doi.org/10.3189/172756402781817266 |
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ftuninhampshire:oai:scholars.unh.edu:earthsci_facpub-1535 2023-05-15T16:38:48+02:00 The climate signal recorded in the oxygen-isotope, accumulation and major-ion time series from the Eclipse ice core, Yukon Territory, Canada Wake, Cameron P Yalcin, Kaplan Gundestrup, Niels S 2002-01-01T08:00:00Z https://scholars.unh.edu/earthsci_facpub/536 https://doi.org/10.3189/172756402781817266 unknown University of New Hampshire Scholars' Repository https://scholars.unh.edu/earthsci_facpub/536 http://dx.doi.org/10.3189/172756402781817266 Earth Sciences Scholarship text 2002 ftuninhampshire https://doi.org/10.3189/172756402781817266 2023-01-30T21:35:33Z The high accumulation rate, nearly complete preservation and detailed chronology of the Eclipse ice core, Yukon Territory, Canada, are well suited for comparison of the glaciochemical record with instrumental time series of temperature, precipitation and sea-level pressure. Results of cross-correlation analysis of instrumental temperature records with the Eclipse 18O time series reveal a significant positive relationship between summertime 18O at Eclipse and summer (April-September) temperatures in northwestern North America. The results indicate that the Eclipse 18O time series provides a better proxy for regional temperature than does the 18O time series from the Mount Logan ice-core record for which only negative correlations were found. Winter accumulation at Eclipse is significantly correlated with several sites in Alaska, but not with any sites in the Yukon. The 18O, accumulation and glaciochemical time series also display significant correlations with the Northern Hemisphere sea-level pressure dataset, especially between wintertime sulfate and nitrate concentrations at Eclipse and the intensity of the wintertime Siberian high and Aleutian and Icelandic lows.These results suggest that year-to-year variability in the deposition of pollutants at Eclipse can be linked to changes in atmospheric circulation, while longterm trends can be explained by changes in source strength. Text ice core Mount Logan Alaska Yukon University of New Hampshire: Scholars Repository Yukon Canada Mount Logan ENVELOPE(-140.405,-140.405,60.567,60.567) Annals of Glaciology 35 416 422 |
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Open Polar |
collection |
University of New Hampshire: Scholars Repository |
op_collection_id |
ftuninhampshire |
language |
unknown |
description |
The high accumulation rate, nearly complete preservation and detailed chronology of the Eclipse ice core, Yukon Territory, Canada, are well suited for comparison of the glaciochemical record with instrumental time series of temperature, precipitation and sea-level pressure. Results of cross-correlation analysis of instrumental temperature records with the Eclipse 18O time series reveal a significant positive relationship between summertime 18O at Eclipse and summer (April-September) temperatures in northwestern North America. The results indicate that the Eclipse 18O time series provides a better proxy for regional temperature than does the 18O time series from the Mount Logan ice-core record for which only negative correlations were found. Winter accumulation at Eclipse is significantly correlated with several sites in Alaska, but not with any sites in the Yukon. The 18O, accumulation and glaciochemical time series also display significant correlations with the Northern Hemisphere sea-level pressure dataset, especially between wintertime sulfate and nitrate concentrations at Eclipse and the intensity of the wintertime Siberian high and Aleutian and Icelandic lows.These results suggest that year-to-year variability in the deposition of pollutants at Eclipse can be linked to changes in atmospheric circulation, while longterm trends can be explained by changes in source strength. |
format |
Text |
author |
Wake, Cameron P Yalcin, Kaplan Gundestrup, Niels S |
spellingShingle |
Wake, Cameron P Yalcin, Kaplan Gundestrup, Niels S The climate signal recorded in the oxygen-isotope, accumulation and major-ion time series from the Eclipse ice core, Yukon Territory, Canada |
author_facet |
Wake, Cameron P Yalcin, Kaplan Gundestrup, Niels S |
author_sort |
Wake, Cameron P |
title |
The climate signal recorded in the oxygen-isotope, accumulation and major-ion time series from the Eclipse ice core, Yukon Territory, Canada |
title_short |
The climate signal recorded in the oxygen-isotope, accumulation and major-ion time series from the Eclipse ice core, Yukon Territory, Canada |
title_full |
The climate signal recorded in the oxygen-isotope, accumulation and major-ion time series from the Eclipse ice core, Yukon Territory, Canada |
title_fullStr |
The climate signal recorded in the oxygen-isotope, accumulation and major-ion time series from the Eclipse ice core, Yukon Territory, Canada |
title_full_unstemmed |
The climate signal recorded in the oxygen-isotope, accumulation and major-ion time series from the Eclipse ice core, Yukon Territory, Canada |
title_sort |
climate signal recorded in the oxygen-isotope, accumulation and major-ion time series from the eclipse ice core, yukon territory, canada |
publisher |
University of New Hampshire Scholars' Repository |
publishDate |
2002 |
url |
https://scholars.unh.edu/earthsci_facpub/536 https://doi.org/10.3189/172756402781817266 |
long_lat |
ENVELOPE(-140.405,-140.405,60.567,60.567) |
geographic |
Yukon Canada Mount Logan |
geographic_facet |
Yukon Canada Mount Logan |
genre |
ice core Mount Logan Alaska Yukon |
genre_facet |
ice core Mount Logan Alaska Yukon |
op_source |
Earth Sciences Scholarship |
op_relation |
https://scholars.unh.edu/earthsci_facpub/536 http://dx.doi.org/10.3189/172756402781817266 |
op_doi |
https://doi.org/10.3189/172756402781817266 |
container_title |
Annals of Glaciology |
container_volume |
35 |
container_start_page |
416 |
op_container_end_page |
422 |
_version_ |
1766029142278537216 |