A doubling in snow accumulation in the western Antarctic Peninsula since 1850
[1] We present results from a new medium depth (136 metres) ice core drilled in a high accumulation site (73.59S, 70.36W) on the south-western Antarctic Peninsula during 2007. The Gomez record reveals a doubling of accumulation since the 1850s, from a decadal average of 0.49 mweq y 1 in 1855–1864 to...
Main Authors: | , , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Published: |
2008
|
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.464.7629 http://ruby.fgcu.edu/courses/twimberley/EnviroPhilo/Doubling.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.464.7629 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.464.7629 2023-05-15T13:57:44+02:00 A doubling in snow accumulation in the western Antarctic Peninsula since 1850 Elizabeth R. Thomas Gareth J. Marshall Joseph R. Mcconnell The Pennsylvania State University CiteSeerX Archives 2008 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.464.7629 http://ruby.fgcu.edu/courses/twimberley/EnviroPhilo/Doubling.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.464.7629 http://ruby.fgcu.edu/courses/twimberley/EnviroPhilo/Doubling.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://ruby.fgcu.edu/courses/twimberley/EnviroPhilo/Doubling.pdf text 2008 ftciteseerx 2016-01-08T06:50:34Z [1] We present results from a new medium depth (136 metres) ice core drilled in a high accumulation site (73.59S, 70.36W) on the south-western Antarctic Peninsula during 2007. The Gomez record reveals a doubling of accumulation since the 1850s, from a decadal average of 0.49 mweq y 1 in 1855–1864 to 1.10 mweq y 1 in 1997–2006, with acceleration in recent decades. Comparison with published accumulation records indicates that this rapid increase is the largest observed across the region. Evaluation of the relationships between Gomez accumulation and the primary modes of atmospheric circulation variability reveals a strong, temporally stable and positive relationship with the Southern Annular Mode (SAM). Furthermore, the SAM is demonstrated to be a primary factor in governing decadal variability of accumulation at the core site (r = 0.66). The association between Gomez accumulation and ENSO is complex: while sometimes statistically significant, the relationship is not temporally stable. Thus, at decadal scales we can utilise the Gomez accumulation as a suitable proxy for Text Antarc* Antarctic Antarctic Peninsula ice core Unknown Antarctic Antarctic Peninsula Gomez ENVELOPE(-58.795,-58.795,-62.196,-62.196) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
[1] We present results from a new medium depth (136 metres) ice core drilled in a high accumulation site (73.59S, 70.36W) on the south-western Antarctic Peninsula during 2007. The Gomez record reveals a doubling of accumulation since the 1850s, from a decadal average of 0.49 mweq y 1 in 1855–1864 to 1.10 mweq y 1 in 1997–2006, with acceleration in recent decades. Comparison with published accumulation records indicates that this rapid increase is the largest observed across the region. Evaluation of the relationships between Gomez accumulation and the primary modes of atmospheric circulation variability reveals a strong, temporally stable and positive relationship with the Southern Annular Mode (SAM). Furthermore, the SAM is demonstrated to be a primary factor in governing decadal variability of accumulation at the core site (r = 0.66). The association between Gomez accumulation and ENSO is complex: while sometimes statistically significant, the relationship is not temporally stable. Thus, at decadal scales we can utilise the Gomez accumulation as a suitable proxy for |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Elizabeth R. Thomas Gareth J. Marshall Joseph R. Mcconnell |
spellingShingle |
Elizabeth R. Thomas Gareth J. Marshall Joseph R. Mcconnell A doubling in snow accumulation in the western Antarctic Peninsula since 1850 |
author_facet |
Elizabeth R. Thomas Gareth J. Marshall Joseph R. Mcconnell |
author_sort |
Elizabeth R. Thomas |
title |
A doubling in snow accumulation in the western Antarctic Peninsula since 1850 |
title_short |
A doubling in snow accumulation in the western Antarctic Peninsula since 1850 |
title_full |
A doubling in snow accumulation in the western Antarctic Peninsula since 1850 |
title_fullStr |
A doubling in snow accumulation in the western Antarctic Peninsula since 1850 |
title_full_unstemmed |
A doubling in snow accumulation in the western Antarctic Peninsula since 1850 |
title_sort |
doubling in snow accumulation in the western antarctic peninsula since 1850 |
publishDate |
2008 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.464.7629 http://ruby.fgcu.edu/courses/twimberley/EnviroPhilo/Doubling.pdf |
long_lat |
ENVELOPE(-58.795,-58.795,-62.196,-62.196) |
geographic |
Antarctic Antarctic Peninsula Gomez |
geographic_facet |
Antarctic Antarctic Peninsula Gomez |
genre |
Antarc* Antarctic Antarctic Peninsula ice core |
genre_facet |
Antarc* Antarctic Antarctic Peninsula ice core |
op_source |
http://ruby.fgcu.edu/courses/twimberley/EnviroPhilo/Doubling.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.464.7629 http://ruby.fgcu.edu/courses/twimberley/EnviroPhilo/Doubling.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766265552662167552 |