An Ice-Core Proxy for Antarctic Circumpolar Zonal Wind Intensity
Using US National Centers for Environmental Prediction/US National Center for Atmospheric Research re-analysis data, we investigate the relationships between crustal ion (nssCa(2+)) concentrations from three West Antarctic ice cores, namely, Siple Dome (SD), ITASE00-1 (IT001) and ITASE01-5 (IT015),...
Main Authors: | , , , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
DigitalCommons@UMaine
2005
|
Subjects: | |
Online Access: | https://digitalcommons.library.umaine.edu/ers_facpub/124 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1123&context=ers_facpub |
id |
ftmaineuniv:oai:digitalcommons.library.umaine.edu:ers_facpub-1123 |
---|---|
record_format |
openpolar |
spelling |
ftmaineuniv:oai:digitalcommons.library.umaine.edu:ers_facpub-1123 2023-05-15T13:59:14+02:00 An Ice-Core Proxy for Antarctic Circumpolar Zonal Wind Intensity Yan, Yuping Mayewski, Paul Andrew Kang, Shichang Meyerson, Eric 2005-01-01T08:00:00Z application/pdf https://digitalcommons.library.umaine.edu/ers_facpub/124 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1123&context=ers_facpub unknown DigitalCommons@UMaine https://digitalcommons.library.umaine.edu/ers_facpub/124 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1123&context=ers_facpub This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s). Earth Science Faculty Scholarship Earth Sciences text 2005 ftmaineuniv 2023-03-12T18:49:12Z Using US National Centers for Environmental Prediction/US National Center for Atmospheric Research re-analysis data, we investigate the relationships between crustal ion (nssCa(2+)) concentrations from three West Antarctic ice cores, namely, Siple Dome (SD), ITASE00-1 (IT001) and ITASE01-5 (IT015), and primary components of the climate system, namely, air pressure/geopotential height, zonal (u) and meridional (v) wind strength. Linear correlation analyses between nssCa(2+) concentrations and both air-pressure and wind fields for the period of overlap between records indicate that the SD nssCa(2+) variation is positively correlated with spring circumpolar zonal wind, while IT001 nssCa(2+) has a positive correlation with circumpolar zonal wind throughout the year (r > 0.3, p < 0.01). Intensified Southern Westerlies circulation is conducive to transport of more crustal aerosols to both sites. Further correlation analyses between nssCa(2+) concentrations from SD and IT001 and atmospheric circulation suggest that the high inland plateau (represented by core IT001) is largely influenced by transport from the upper troposphere. IT015 nssCa(2+) is negatively correlated with westerly wind in October and November, suggesting that stronger westerly circulation may weaken the transport of crustal species to IT015. Correlations of nssCa(2+) from the three ice cores with the Antarctic Oscillation index are consistent with results developed from the wind-field investigation. In addition, calibration between nssCa(2+) concentration and the multivariate El Nino-Southern Oscillation (ENSO) index shows that crustal species transport to IT001 is enhanced during strong ENSO events. Text Antarc* Antarctic ice core The University of Maine: DigitalCommons@UMaine Antarctic The Antarctic Siple ENVELOPE(-83.917,-83.917,-75.917,-75.917) Siple Dome ENVELOPE(-148.833,-148.833,-81.667,-81.667) |
institution |
Open Polar |
collection |
The University of Maine: DigitalCommons@UMaine |
op_collection_id |
ftmaineuniv |
language |
unknown |
topic |
Earth Sciences |
spellingShingle |
Earth Sciences Yan, Yuping Mayewski, Paul Andrew Kang, Shichang Meyerson, Eric An Ice-Core Proxy for Antarctic Circumpolar Zonal Wind Intensity |
topic_facet |
Earth Sciences |
description |
Using US National Centers for Environmental Prediction/US National Center for Atmospheric Research re-analysis data, we investigate the relationships between crustal ion (nssCa(2+)) concentrations from three West Antarctic ice cores, namely, Siple Dome (SD), ITASE00-1 (IT001) and ITASE01-5 (IT015), and primary components of the climate system, namely, air pressure/geopotential height, zonal (u) and meridional (v) wind strength. Linear correlation analyses between nssCa(2+) concentrations and both air-pressure and wind fields for the period of overlap between records indicate that the SD nssCa(2+) variation is positively correlated with spring circumpolar zonal wind, while IT001 nssCa(2+) has a positive correlation with circumpolar zonal wind throughout the year (r > 0.3, p < 0.01). Intensified Southern Westerlies circulation is conducive to transport of more crustal aerosols to both sites. Further correlation analyses between nssCa(2+) concentrations from SD and IT001 and atmospheric circulation suggest that the high inland plateau (represented by core IT001) is largely influenced by transport from the upper troposphere. IT015 nssCa(2+) is negatively correlated with westerly wind in October and November, suggesting that stronger westerly circulation may weaken the transport of crustal species to IT015. Correlations of nssCa(2+) from the three ice cores with the Antarctic Oscillation index are consistent with results developed from the wind-field investigation. In addition, calibration between nssCa(2+) concentration and the multivariate El Nino-Southern Oscillation (ENSO) index shows that crustal species transport to IT001 is enhanced during strong ENSO events. |
format |
Text |
author |
Yan, Yuping Mayewski, Paul Andrew Kang, Shichang Meyerson, Eric |
author_facet |
Yan, Yuping Mayewski, Paul Andrew Kang, Shichang Meyerson, Eric |
author_sort |
Yan, Yuping |
title |
An Ice-Core Proxy for Antarctic Circumpolar Zonal Wind Intensity |
title_short |
An Ice-Core Proxy for Antarctic Circumpolar Zonal Wind Intensity |
title_full |
An Ice-Core Proxy for Antarctic Circumpolar Zonal Wind Intensity |
title_fullStr |
An Ice-Core Proxy for Antarctic Circumpolar Zonal Wind Intensity |
title_full_unstemmed |
An Ice-Core Proxy for Antarctic Circumpolar Zonal Wind Intensity |
title_sort |
ice-core proxy for antarctic circumpolar zonal wind intensity |
publisher |
DigitalCommons@UMaine |
publishDate |
2005 |
url |
https://digitalcommons.library.umaine.edu/ers_facpub/124 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1123&context=ers_facpub |
long_lat |
ENVELOPE(-83.917,-83.917,-75.917,-75.917) ENVELOPE(-148.833,-148.833,-81.667,-81.667) |
geographic |
Antarctic The Antarctic Siple Siple Dome |
geographic_facet |
Antarctic The Antarctic Siple Siple Dome |
genre |
Antarc* Antarctic ice core |
genre_facet |
Antarc* Antarctic ice core |
op_source |
Earth Science Faculty Scholarship |
op_relation |
https://digitalcommons.library.umaine.edu/ers_facpub/124 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1123&context=ers_facpub |
op_rights |
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s). |
_version_ |
1766267754181033984 |