Global perspective of nitrate flux in ice cores
The relationships between the concentration and the flux of chemical species (Cl-, NO3 - , SO42-, Na +, K + , NH4 + , Mg 2+ , Ca 2+) versus snow accumulation rate were examined at GISP2 and 20D in Greenland, Mount Logan from the St. Elias Range, Yukon Territory, Canada, and Sentik Glacier from the n...
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ftuninhampshire:oai:scholars.unh.edu:earthsci_facpub-1114 2023-05-15T15:05:11+02:00 Global perspective of nitrate flux in ice cores Yang, Qinzhao Mayewski, Paul A Whitlow, Sallie I Twickler, Mark S Morrison, Michael Talbot, R. Dibb, Jack E. Linder, Ernst 1995-03-20T08:00:00Z application/pdf https://scholars.unh.edu/earthsci_facpub/115 https://scholars.unh.edu/cgi/viewcontent.cgi?article=1114&context=earthsci_facpub unknown University of New Hampshire Scholars' Repository https://scholars.unh.edu/earthsci_facpub/115 https://scholars.unh.edu/cgi/viewcontent.cgi?article=1114&context=earthsci_facpub Copyright 1995 by the American Geophysical Union. Earth Sciences Scholarship Atmospheric Sciences text 1995 ftuninhampshire 2023-01-30T21:34:20Z The relationships between the concentration and the flux of chemical species (Cl-, NO3 - , SO42-, Na +, K + , NH4 + , Mg 2+ , Ca 2+) versus snow accumulation rate were examined at GISP2 and 20D in Greenland, Mount Logan from the St. Elias Range, Yukon Territory, Canada, and Sentik Glacier from the northwest end of the Zanskar Range in the Indian Himalayas. At all sites, only nitrate flux is significantly (a = 0.05) related to snow accumulation rate. Of all the chemical series, only nitrate concentration data are normally distributed. Therefore we suggest that nitrate concentration in snow is affected by postdepositionaJ exchange with the atmosphere over a broad range of environmental conditions. The persistent summer maxima in nitrate observed in Greenland snow over the entire range of record studied (the last 800 years) may be mainly due to NO• released from peroxyacetyl nitrate by thermal decomposition in the presence of higher OH concentrations in summer. The late winter/early spring nitrate peak observed in modern Greenland snow may be related to the buildup of anthropogenically derived N Oy in the Arctic troposphere during the long polar winter. Text Arctic glacier glacier* Greenland Mount Logan Yukon University of New Hampshire: Scholars Repository Arctic Yukon Canada Greenland Indian Mount Logan ENVELOPE(-140.405,-140.405,60.567,60.567) |
institution |
Open Polar |
collection |
University of New Hampshire: Scholars Repository |
op_collection_id |
ftuninhampshire |
language |
unknown |
topic |
Atmospheric Sciences |
spellingShingle |
Atmospheric Sciences Yang, Qinzhao Mayewski, Paul A Whitlow, Sallie I Twickler, Mark S Morrison, Michael Talbot, R. Dibb, Jack E. Linder, Ernst Global perspective of nitrate flux in ice cores |
topic_facet |
Atmospheric Sciences |
description |
The relationships between the concentration and the flux of chemical species (Cl-, NO3 - , SO42-, Na +, K + , NH4 + , Mg 2+ , Ca 2+) versus snow accumulation rate were examined at GISP2 and 20D in Greenland, Mount Logan from the St. Elias Range, Yukon Territory, Canada, and Sentik Glacier from the northwest end of the Zanskar Range in the Indian Himalayas. At all sites, only nitrate flux is significantly (a = 0.05) related to snow accumulation rate. Of all the chemical series, only nitrate concentration data are normally distributed. Therefore we suggest that nitrate concentration in snow is affected by postdepositionaJ exchange with the atmosphere over a broad range of environmental conditions. The persistent summer maxima in nitrate observed in Greenland snow over the entire range of record studied (the last 800 years) may be mainly due to NO• released from peroxyacetyl nitrate by thermal decomposition in the presence of higher OH concentrations in summer. The late winter/early spring nitrate peak observed in modern Greenland snow may be related to the buildup of anthropogenically derived N Oy in the Arctic troposphere during the long polar winter. |
format |
Text |
author |
Yang, Qinzhao Mayewski, Paul A Whitlow, Sallie I Twickler, Mark S Morrison, Michael Talbot, R. Dibb, Jack E. Linder, Ernst |
author_facet |
Yang, Qinzhao Mayewski, Paul A Whitlow, Sallie I Twickler, Mark S Morrison, Michael Talbot, R. Dibb, Jack E. Linder, Ernst |
author_sort |
Yang, Qinzhao |
title |
Global perspective of nitrate flux in ice cores |
title_short |
Global perspective of nitrate flux in ice cores |
title_full |
Global perspective of nitrate flux in ice cores |
title_fullStr |
Global perspective of nitrate flux in ice cores |
title_full_unstemmed |
Global perspective of nitrate flux in ice cores |
title_sort |
global perspective of nitrate flux in ice cores |
publisher |
University of New Hampshire Scholars' Repository |
publishDate |
1995 |
url |
https://scholars.unh.edu/earthsci_facpub/115 https://scholars.unh.edu/cgi/viewcontent.cgi?article=1114&context=earthsci_facpub |
long_lat |
ENVELOPE(-140.405,-140.405,60.567,60.567) |
geographic |
Arctic Yukon Canada Greenland Indian Mount Logan |
geographic_facet |
Arctic Yukon Canada Greenland Indian Mount Logan |
genre |
Arctic glacier glacier* Greenland Mount Logan Yukon |
genre_facet |
Arctic glacier glacier* Greenland Mount Logan Yukon |
op_source |
Earth Sciences Scholarship |
op_relation |
https://scholars.unh.edu/earthsci_facpub/115 https://scholars.unh.edu/cgi/viewcontent.cgi?article=1114&context=earthsci_facpub |
op_rights |
Copyright 1995 by the American Geophysical Union. |
_version_ |
1766336937574006784 |