Impacts of the North Atlantic Oscillation on stream water chemistry in mid-Wales
International audience 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...
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ftccsdartic:oai:HAL:hal-00304933v1 2023-11-12T04:21:46+01:00 Impacts of the North Atlantic Oscillation on stream water chemistry in mid-Wales Ness, L. Neal, C. Davies, T. D. Reynolds, B. School of Environmental Sciences Norwich University of East Anglia Norwich (UEA) Centre for Ecology and Hydrology (CEH) Natural Environment Research Council (NERC) Centre for Ecology and Hydrology Bangor (CEH) 2004 https://hal.science/hal-00304933 https://hal.science/hal-00304933/document https://hal.science/hal-00304933/file/hess-8-409-2004.pdf en eng HAL CCSD European Geosciences Union hal-00304933 https://hal.science/hal-00304933 https://hal.science/hal-00304933/document https://hal.science/hal-00304933/file/hess-8-409-2004.pdf info:eu-repo/semantics/OpenAccess ISSN: 1812-2108 EISSN: 1812-2116 Hydrology and Earth System Sciences Discussions https://hal.science/hal-00304933 Hydrology and Earth System Sciences Discussions, 2004, 8 (3), pp.409-421 [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2004 ftccsdartic 2023-10-21T23:10:33Z International audience 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 NO 3 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 NO 3 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 Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Ness, L. Neal, C. Davies, T. D. Reynolds, B. Impacts of the North Atlantic Oscillation on stream water chemistry in mid-Wales |
topic_facet |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience 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 NO 3 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 NO 3 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 |
author2 |
School of Environmental Sciences Norwich University of East Anglia Norwich (UEA) Centre for Ecology and Hydrology (CEH) Natural Environment Research Council (NERC) Centre for Ecology and Hydrology Bangor (CEH) |
format |
Article in Journal/Newspaper |
author |
Ness, L. Neal, C. Davies, T. D. Reynolds, B. |
author_facet |
Ness, L. Neal, C. Davies, T. D. Reynolds, B. |
author_sort |
Ness, L. |
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 |
HAL CCSD |
publishDate |
2004 |
url |
https://hal.science/hal-00304933 https://hal.science/hal-00304933/document https://hal.science/hal-00304933/file/hess-8-409-2004.pdf |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
ISSN: 1812-2108 EISSN: 1812-2116 Hydrology and Earth System Sciences Discussions https://hal.science/hal-00304933 Hydrology and Earth System Sciences Discussions, 2004, 8 (3), pp.409-421 |
op_relation |
hal-00304933 https://hal.science/hal-00304933 https://hal.science/hal-00304933/document https://hal.science/hal-00304933/file/hess-8-409-2004.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782337039133310976 |