Calibration of an ice-core glaciochemical (sea salt) record with sea-ice variability in the Canadian Arctic. Annals of Glaciology 44
ABSTRACT. Correlation between glaciochemical time series from an ice core collected on Devon Ice Cap, Nunavut, Canada, and gridded time series of sea-ice concentrations reveals statistically significant inverse relationships between sea-salt concentrations (mainly Na +,Mg 2+ and Cl – ) in the ice co...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.430.3384 2023-05-15T15:08:23+02:00 Calibration of an ice-core glaciochemical (sea salt) record with sea-ice variability in the Canadian Arctic. Annals of Glaciology 44 Christophe Kinnard Christian M. Zdanowicz David A. Fisher Cameron P. Wake The Pennsylvania State University CiteSeerX Archives 2006 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.430.3384 http://www.igsoc.org/annals/44/a44a083.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.430.3384 http://www.igsoc.org/annals/44/a44a083.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.igsoc.org/annals/44/a44a083.pdf text 2006 ftciteseerx 2016-01-08T04:37:38Z ABSTRACT. Correlation between glaciochemical time series from an ice core collected on Devon Ice Cap, Nunavut, Canada, and gridded time series of sea-ice concentrations reveals statistically significant inverse relationships between sea-salt concentrations (mainly Na +,Mg 2+ and Cl – ) in the ice core and sea-ice cover in Baffin Bay over the period 1980–97. An empirical orthogonal function (EOF) analysis performed on all major ions shows that the dominant mode of glaciochemical variability (EOF1) represents a sea-salt signal, which correlates best with sea-ice concentration in Baffin Bay. On a seasonal basis, the strongest and most spatially extensive anticorrelations are found in Baffin Bay during the fall, followed by spring, summer and winter. These results support the notion that increased openwater conditions in Baffin Bay during the stormy seasons (fall and spring) promote increased production, transport and deposition of sea-salt aerosols on Devon Ice Cap. Comparison of ice-core time series of EOF1, d 18 O and melt percentage, with air temperatures recorded in Upernavik, Greenland, suggests that ice-cover variations in Baffin Bay over the past �145 years were dynamically rather than thermodynamically controlled, with periods of strengthened cyclonic circulation leading to increased open-water conditions, and a greater sea-salt flux on Devon Ice Cap. Text Arctic Baffin Bay Baffin Bay Baffin Greenland Ice cap ice core Nunavut Sea ice Upernavik Unknown Arctic Nunavut Baffin Bay Canada Greenland Devon Ice Cap ENVELOPE(-82.499,-82.499,75.335,75.335) |
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Open Polar |
collection |
Unknown |
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ftciteseerx |
language |
English |
description |
ABSTRACT. Correlation between glaciochemical time series from an ice core collected on Devon Ice Cap, Nunavut, Canada, and gridded time series of sea-ice concentrations reveals statistically significant inverse relationships between sea-salt concentrations (mainly Na +,Mg 2+ and Cl – ) in the ice core and sea-ice cover in Baffin Bay over the period 1980–97. An empirical orthogonal function (EOF) analysis performed on all major ions shows that the dominant mode of glaciochemical variability (EOF1) represents a sea-salt signal, which correlates best with sea-ice concentration in Baffin Bay. On a seasonal basis, the strongest and most spatially extensive anticorrelations are found in Baffin Bay during the fall, followed by spring, summer and winter. These results support the notion that increased openwater conditions in Baffin Bay during the stormy seasons (fall and spring) promote increased production, transport and deposition of sea-salt aerosols on Devon Ice Cap. Comparison of ice-core time series of EOF1, d 18 O and melt percentage, with air temperatures recorded in Upernavik, Greenland, suggests that ice-cover variations in Baffin Bay over the past �145 years were dynamically rather than thermodynamically controlled, with periods of strengthened cyclonic circulation leading to increased open-water conditions, and a greater sea-salt flux on Devon Ice Cap. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Christophe Kinnard Christian M. Zdanowicz David A. Fisher Cameron P. Wake |
spellingShingle |
Christophe Kinnard Christian M. Zdanowicz David A. Fisher Cameron P. Wake Calibration of an ice-core glaciochemical (sea salt) record with sea-ice variability in the Canadian Arctic. Annals of Glaciology 44 |
author_facet |
Christophe Kinnard Christian M. Zdanowicz David A. Fisher Cameron P. Wake |
author_sort |
Christophe Kinnard |
title |
Calibration of an ice-core glaciochemical (sea salt) record with sea-ice variability in the Canadian Arctic. Annals of Glaciology 44 |
title_short |
Calibration of an ice-core glaciochemical (sea salt) record with sea-ice variability in the Canadian Arctic. Annals of Glaciology 44 |
title_full |
Calibration of an ice-core glaciochemical (sea salt) record with sea-ice variability in the Canadian Arctic. Annals of Glaciology 44 |
title_fullStr |
Calibration of an ice-core glaciochemical (sea salt) record with sea-ice variability in the Canadian Arctic. Annals of Glaciology 44 |
title_full_unstemmed |
Calibration of an ice-core glaciochemical (sea salt) record with sea-ice variability in the Canadian Arctic. Annals of Glaciology 44 |
title_sort |
calibration of an ice-core glaciochemical (sea salt) record with sea-ice variability in the canadian arctic. annals of glaciology 44 |
publishDate |
2006 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.430.3384 http://www.igsoc.org/annals/44/a44a083.pdf |
long_lat |
ENVELOPE(-82.499,-82.499,75.335,75.335) |
geographic |
Arctic Nunavut Baffin Bay Canada Greenland Devon Ice Cap |
geographic_facet |
Arctic Nunavut Baffin Bay Canada Greenland Devon Ice Cap |
genre |
Arctic Baffin Bay Baffin Bay Baffin Greenland Ice cap ice core Nunavut Sea ice Upernavik |
genre_facet |
Arctic Baffin Bay Baffin Bay Baffin Greenland Ice cap ice core Nunavut Sea ice Upernavik |
op_source |
http://www.igsoc.org/annals/44/a44a083.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.430.3384 http://www.igsoc.org/annals/44/a44a083.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766339764428996608 |