Limited migration of soluble ionic species in a Siple Dome, Antarctica, ice core
High-resolution (>10 samples a−1) glaciochemical analyses covering the last 110 years from a Siplc Dome, Antarctica, ire core reveal limited migration of certain soluble ionic species (methane sulfonic acid, NO3 − and Mg2+). The observed chemical migration may be due in part to seasonal alternati...
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ftuninhampshire:oai:scholars.unh.edu:faculty_pubs-1347 2023-05-15T13:46:10+02:00 Limited migration of soluble ionic species in a Siple Dome, Antarctica, ice core Kreutz, Karl J. Mayewski, Paul A. Whitlow, Sallie I. Twickler, Mark S. 1998-01-01T08:00:00Z application/pdf https://scholars.unh.edu/faculty_pubs/348 https://scholars.unh.edu/cgi/viewcontent.cgi?article=1347&context=faculty_pubs unknown University of New Hampshire Scholars' Repository https://scholars.unh.edu/faculty_pubs/348 https://scholars.unh.edu/cgi/viewcontent.cgi?article=1347&context=faculty_pubs © International Glaciological Society 1998. http://creativecommons.org/licenses/by/3.0/ CC-BY Faculty Publications text 1998 ftuninhampshire 2023-01-30T21:49:54Z High-resolution (>10 samples a−1) glaciochemical analyses covering the last 110 years from a Siplc Dome, Antarctica, ire core reveal limited migration of certain soluble ionic species (methane sulfonic acid, NO3 − and Mg2+). The observed chemical migration may be due in part to seasonal alternation between less acidic winter (from high sea-salt concentrations) and more acidic summer (from high marine biogenic acid concentrations) layers, common at coastal siles such as Siplc Dome. Exact mechanisms to expla in the migration are unclear, although simple diffusion and gravitational movement are unlikely since new peaks are formed where none previously existed in each case. Initial migration of each species is both shallower and earlier at Siple Dome than at other sites in Antarctica where similar phenomena have been observed, which may be related to the relatively low accumulation rate at Siple Dome (~13.3 cm ice a−1). Migration appears to be limited to either the preceding or following seasonal layer for each species, suggesting that paleoclimatic interpretations based on dala with lower than annual resolution are not likely to be affected. Text Antarc* Antarctica ice core University of New Hampshire: Scholars Repository 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 |
University of New Hampshire: Scholars Repository |
op_collection_id |
ftuninhampshire |
language |
unknown |
description |
High-resolution (>10 samples a−1) glaciochemical analyses covering the last 110 years from a Siplc Dome, Antarctica, ire core reveal limited migration of certain soluble ionic species (methane sulfonic acid, NO3 − and Mg2+). The observed chemical migration may be due in part to seasonal alternation between less acidic winter (from high sea-salt concentrations) and more acidic summer (from high marine biogenic acid concentrations) layers, common at coastal siles such as Siplc Dome. Exact mechanisms to expla in the migration are unclear, although simple diffusion and gravitational movement are unlikely since new peaks are formed where none previously existed in each case. Initial migration of each species is both shallower and earlier at Siple Dome than at other sites in Antarctica where similar phenomena have been observed, which may be related to the relatively low accumulation rate at Siple Dome (~13.3 cm ice a−1). Migration appears to be limited to either the preceding or following seasonal layer for each species, suggesting that paleoclimatic interpretations based on dala with lower than annual resolution are not likely to be affected. |
format |
Text |
author |
Kreutz, Karl J. Mayewski, Paul A. Whitlow, Sallie I. Twickler, Mark S. |
spellingShingle |
Kreutz, Karl J. Mayewski, Paul A. Whitlow, Sallie I. Twickler, Mark S. Limited migration of soluble ionic species in a Siple Dome, Antarctica, ice core |
author_facet |
Kreutz, Karl J. Mayewski, Paul A. Whitlow, Sallie I. Twickler, Mark S. |
author_sort |
Kreutz, Karl J. |
title |
Limited migration of soluble ionic species in a Siple Dome, Antarctica, ice core |
title_short |
Limited migration of soluble ionic species in a Siple Dome, Antarctica, ice core |
title_full |
Limited migration of soluble ionic species in a Siple Dome, Antarctica, ice core |
title_fullStr |
Limited migration of soluble ionic species in a Siple Dome, Antarctica, ice core |
title_full_unstemmed |
Limited migration of soluble ionic species in a Siple Dome, Antarctica, ice core |
title_sort |
limited migration of soluble ionic species in a siple dome, antarctica, ice core |
publisher |
University of New Hampshire Scholars' Repository |
publishDate |
1998 |
url |
https://scholars.unh.edu/faculty_pubs/348 https://scholars.unh.edu/cgi/viewcontent.cgi?article=1347&context=faculty_pubs |
long_lat |
ENVELOPE(-83.917,-83.917,-75.917,-75.917) ENVELOPE(-148.833,-148.833,-81.667,-81.667) |
geographic |
Siple Siple Dome |
geographic_facet |
Siple Siple Dome |
genre |
Antarc* Antarctica ice core |
genre_facet |
Antarc* Antarctica ice core |
op_source |
Faculty Publications |
op_relation |
https://scholars.unh.edu/faculty_pubs/348 https://scholars.unh.edu/cgi/viewcontent.cgi?article=1347&context=faculty_pubs |
op_rights |
© International Glaciological Society 1998. http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
_version_ |
1766238069305901056 |