Impacts of the North Atlantic Oscillation on stream water chemistry in mid-Wales
Analysis of winter stream chemistry data from the Afon Hafren in mid-Wales reveals links between stream chemistry and the North Atlantic Oscillation (NAO). K, Y, Al and dissolved organic carbon (DOC) concentrations increase during high NAO index months (relatively warm and wet weather), while Ca, Mg...
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fttriple:oai:gotriple.eu:oai:doaj.org/article:8a92eb15b745478184011d2f368b5896 2023-05-15T17:27:45+02:00 Impacts of the North Atlantic Oscillation on stream water chemistry in mid-Wales L. Ness C. Neal T. D. Davies B. Reynolds 2004-01-01 http://www.hydrol-earth-syst-sci.net/8/409/2004/hess-8-409-2004.pdf https://doaj.org/article/8a92eb15b745478184011d2f368b5896 en eng Copernicus Publications 1027-5606 1607-7938 http://www.hydrol-earth-syst-sci.net/8/409/2004/hess-8-409-2004.pdf https://doaj.org/article/8a92eb15b745478184011d2f368b5896 undefined Hydrology and Earth System Sciences, Vol 8, Iss 3, Pp 409-421 (2004) envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2004 fttriple 2023-01-22T19:05:21Z Analysis of winter stream chemistry data from the Afon Hafren in mid-Wales reveals links between stream chemistry and the North Atlantic Oscillation (NAO). K, Y, Al and dissolved organic carbon (DOC) concentrations increase during high NAO index months (relatively warm and wet weather), while Ca, Mg and NO3 concentrations increase during low NAO months (relatively cold and dry conditions) with the increased concentrations lasting into the next month. The cause of the concentration changes varies between constituents: Y, Al and DOC are impacted by short term variations in rainfall; Mg and Ca are influenced by flow conditions; and NO3 is temperature controlled. The dominant control mechanism for K concentration seems to be related to rainfall after tree felling has taken place but, prior to felling, the relationships are less certain. Keywords: nitrate, potassium, yttrium, aluminium, Dissolved Organic Carbon, magnesium, calcium, North Atlantic Oscillation, stream chemistry, Plynlimon, Hafren Article in Journal/Newspaper North Atlantic North Atlantic oscillation Unknown |
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English |
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envir geo |
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envir geo L. Ness C. Neal T. D. Davies B. Reynolds Impacts of the North Atlantic Oscillation on stream water chemistry in mid-Wales |
topic_facet |
envir geo |
description |
Analysis of winter stream chemistry data from the Afon Hafren in mid-Wales reveals links between stream chemistry and the North Atlantic Oscillation (NAO). K, Y, Al and dissolved organic carbon (DOC) concentrations increase during high NAO index months (relatively warm and wet weather), while Ca, Mg and NO3 concentrations increase during low NAO months (relatively cold and dry conditions) with the increased concentrations lasting into the next month. The cause of the concentration changes varies between constituents: Y, Al and DOC are impacted by short term variations in rainfall; Mg and Ca are influenced by flow conditions; and NO3 is temperature controlled. The dominant control mechanism for K concentration seems to be related to rainfall after tree felling has taken place but, prior to felling, the relationships are less certain. Keywords: nitrate, potassium, yttrium, aluminium, Dissolved Organic Carbon, magnesium, calcium, North Atlantic Oscillation, stream chemistry, Plynlimon, Hafren |
format |
Article in Journal/Newspaper |
author |
L. Ness C. Neal T. D. Davies B. Reynolds |
author_facet |
L. Ness C. Neal T. D. Davies B. Reynolds |
author_sort |
L. Ness |
title |
Impacts of the North Atlantic Oscillation on stream water chemistry in mid-Wales |
title_short |
Impacts of the North Atlantic Oscillation on stream water chemistry in mid-Wales |
title_full |
Impacts of the North Atlantic Oscillation on stream water chemistry in mid-Wales |
title_fullStr |
Impacts of the North Atlantic Oscillation on stream water chemistry in mid-Wales |
title_full_unstemmed |
Impacts of the North Atlantic Oscillation on stream water chemistry in mid-Wales |
title_sort |
impacts of the north atlantic oscillation on stream water chemistry in mid-wales |
publisher |
Copernicus Publications |
publishDate |
2004 |
url |
http://www.hydrol-earth-syst-sci.net/8/409/2004/hess-8-409-2004.pdf https://doaj.org/article/8a92eb15b745478184011d2f368b5896 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Hydrology and Earth System Sciences, Vol 8, Iss 3, Pp 409-421 (2004) |
op_relation |
1027-5606 1607-7938 http://www.hydrol-earth-syst-sci.net/8/409/2004/hess-8-409-2004.pdf https://doaj.org/article/8a92eb15b745478184011d2f368b5896 |
op_rights |
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1766120034974826496 |