Spatial Variability of Snow Chemistry in Western Dronning Maud Land, Antarctica
During the austral summer of 1993-94 a number of 1-2 m deep snow pits were sampled in connection with firn-coring in western Dronning Maud Land, Antarctica. The traverse went from 800 to about 3000 m a.s.l. upon the high-altitude plateau. Profiles of cations (Na+, K+, Mg2+, Ca2+), anions (CI-, NO3-,...
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ftmaineuniv:oai:digitalcommons.library.umaine.edu:ers_facpub-1241 2024-09-15T17:43:58+00:00 Spatial Variability of Snow Chemistry in Western Dronning Maud Land, Antarctica Stenberg, Malin Isaksson, Elisabeth Hansson, Margareta Karlén, Wibjörn Mayewski, Paul Andrew Twickler, Mark S. Whitlow, Sallie I. Gundestrup, Niels 1998-01-01T08:00:00Z application/pdf https://digitalcommons.library.umaine.edu/ers_facpub/236 https://digitalcommons.library.umaine.edu/context/ers_facpub/article/1241/viewcontent/SpatialvariabilityofsnowchemistryinwesternDronningMaudLandAntarctica.pdf unknown DigitalCommons@UMaine https://digitalcommons.library.umaine.edu/ers_facpub/236 https://digitalcommons.library.umaine.edu/context/ers_facpub/article/1241/viewcontent/SpatialvariabilityofsnowchemistryinwesternDronningMaudLandAntarctica.pdf 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 Glaciogeology Geochemistry Glaciology Cryology Climate Change Atmospheric Sciences Climate Earth Sciences Hydrology text 1998 ftmaineuniv 2024-07-24T05:38:40Z During the austral summer of 1993-94 a number of 1-2 m deep snow pits were sampled in connection with firn-coring in western Dronning Maud Land, Antarctica. The traverse went from 800 to about 3000 m a.s.l. upon the high-altitude plateau. Profiles of cations (Na+, K+, Mg2+, Ca2+), anions (CI-, NO3-, SO42-, CH3SO3-) and stable oxygen isotopes (δ18O) from II snow pits are presented here. Close to the coast 2 m of snow accumulates in about 2-3 years, whilst at sites on the high-altitude plateau 2 m of snow accumulates in 10-14 years. The spatial variation in ion concentrations shows that the ions can be divided into two groups, one with sea-salt elements and methane sulfonate and the other with nitrate and sulfate. For the sea-salt elements and methane sulfonate the concentrations decrease with increasing altitude and increasing distance from the coast, as well as with decreasing temperature and decreasing accumulation rate. For nitrate and sulfate the concentrations are constant or increase with respect to these parameters. This pattern suggests that the sources for sea-salt elements and methane sulfonate are local, whereas the sources for nitrate and sulfate are a mixture of local and long-range transport. Text Antarc* Antarctica Dronning Maud Land The University of Maine: DigitalCommons@UMaine |
institution |
Open Polar |
collection |
The University of Maine: DigitalCommons@UMaine |
op_collection_id |
ftmaineuniv |
language |
unknown |
topic |
Glaciogeology Geochemistry Glaciology Cryology Climate Change Atmospheric Sciences Climate Earth Sciences Hydrology |
spellingShingle |
Glaciogeology Geochemistry Glaciology Cryology Climate Change Atmospheric Sciences Climate Earth Sciences Hydrology Stenberg, Malin Isaksson, Elisabeth Hansson, Margareta Karlén, Wibjörn Mayewski, Paul Andrew Twickler, Mark S. Whitlow, Sallie I. Gundestrup, Niels Spatial Variability of Snow Chemistry in Western Dronning Maud Land, Antarctica |
topic_facet |
Glaciogeology Geochemistry Glaciology Cryology Climate Change Atmospheric Sciences Climate Earth Sciences Hydrology |
description |
During the austral summer of 1993-94 a number of 1-2 m deep snow pits were sampled in connection with firn-coring in western Dronning Maud Land, Antarctica. The traverse went from 800 to about 3000 m a.s.l. upon the high-altitude plateau. Profiles of cations (Na+, K+, Mg2+, Ca2+), anions (CI-, NO3-, SO42-, CH3SO3-) and stable oxygen isotopes (δ18O) from II snow pits are presented here. Close to the coast 2 m of snow accumulates in about 2-3 years, whilst at sites on the high-altitude plateau 2 m of snow accumulates in 10-14 years. The spatial variation in ion concentrations shows that the ions can be divided into two groups, one with sea-salt elements and methane sulfonate and the other with nitrate and sulfate. For the sea-salt elements and methane sulfonate the concentrations decrease with increasing altitude and increasing distance from the coast, as well as with decreasing temperature and decreasing accumulation rate. For nitrate and sulfate the concentrations are constant or increase with respect to these parameters. This pattern suggests that the sources for sea-salt elements and methane sulfonate are local, whereas the sources for nitrate and sulfate are a mixture of local and long-range transport. |
format |
Text |
author |
Stenberg, Malin Isaksson, Elisabeth Hansson, Margareta Karlén, Wibjörn Mayewski, Paul Andrew Twickler, Mark S. Whitlow, Sallie I. Gundestrup, Niels |
author_facet |
Stenberg, Malin Isaksson, Elisabeth Hansson, Margareta Karlén, Wibjörn Mayewski, Paul Andrew Twickler, Mark S. Whitlow, Sallie I. Gundestrup, Niels |
author_sort |
Stenberg, Malin |
title |
Spatial Variability of Snow Chemistry in Western Dronning Maud Land, Antarctica |
title_short |
Spatial Variability of Snow Chemistry in Western Dronning Maud Land, Antarctica |
title_full |
Spatial Variability of Snow Chemistry in Western Dronning Maud Land, Antarctica |
title_fullStr |
Spatial Variability of Snow Chemistry in Western Dronning Maud Land, Antarctica |
title_full_unstemmed |
Spatial Variability of Snow Chemistry in Western Dronning Maud Land, Antarctica |
title_sort |
spatial variability of snow chemistry in western dronning maud land, antarctica |
publisher |
DigitalCommons@UMaine |
publishDate |
1998 |
url |
https://digitalcommons.library.umaine.edu/ers_facpub/236 https://digitalcommons.library.umaine.edu/context/ers_facpub/article/1241/viewcontent/SpatialvariabilityofsnowchemistryinwesternDronningMaudLandAntarctica.pdf |
genre |
Antarc* Antarctica Dronning Maud Land |
genre_facet |
Antarc* Antarctica Dronning Maud Land |
op_source |
Earth Science Faculty Scholarship |
op_relation |
https://digitalcommons.library.umaine.edu/ers_facpub/236 https://digitalcommons.library.umaine.edu/context/ers_facpub/article/1241/viewcontent/SpatialvariabilityofsnowchemistryinwesternDronningMaudLandAntarctica.pdf |
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_ |
1810491199864176640 |