Regional rainfall response to the North Atlantic Oscillation (NAO) across Great Britain
The NAO has been long studied as the primary teleconnection affecting British and European climate. However, previous studies have focused on extremes or have been spatially and temporally limited. In recent years our ability to predict the NAO has improved. Also new research is emerging suggesting...
Published in: | Hydrology Research |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
IWA Publishing
2019
|
Subjects: | |
Online Access: | http://eprints.uwe.ac.uk/40752/ http://eprints.uwe.ac.uk/40752/1/West%20et%20al%20-%20NAO%20Rainfall%20Paper.pdf |
id |
ftuniwestengland:oai:eprints.uwe.ac.uk:40752 |
---|---|
record_format |
openpolar |
spelling |
ftuniwestengland:oai:eprints.uwe.ac.uk:40752 2023-05-15T17:33:21+02:00 Regional rainfall response to the North Atlantic Oscillation (NAO) across Great Britain West, H. Quinn, N. Horswell, M. 2019-05-25 text http://eprints.uwe.ac.uk/40752/ http://eprints.uwe.ac.uk/40752/1/West%20et%20al%20-%20NAO%20Rainfall%20Paper.pdf unknown IWA Publishing http://eprints.uwe.ac.uk/40752/1/West%20et%20al%20-%20NAO%20Rainfall%20Paper.pdf West, H. , Quinn, N. and Horswell, M. (2019) Regional rainfall response to the North Atlantic Oscillation (NAO) across Great Britain. Hydrology Research. ISSN 0029-1277 Available from: http://eprints.uwe.ac.uk/40752 Article NonPeerReviewed 2019 ftuniwestengland 2021-02-18T23:26:39Z The NAO has been long studied as the primary teleconnection affecting British and European climate. However, previous studies have focused on extremes or have been spatially and temporally limited. In recent years our ability to predict the NAO has improved. Also new research is emerging suggesting that the NAO is a key driver of hydrological extremes. These factors mean there is renewed value in enhancing our understanding of how the NAO influences general rainfall patterns. In this study we spatially analyse correlations between NAO indices and monthly rainfall data and the Standardised Precipitation Index. We also map mean monthly rainfall differences under NAO positive and negative conditions. Based on our results we identify three main observations: (I) there is sensitivity in the rainfall patterns to the chosen NAO index; (II) there is a clear winter north/west and south/east divide in rainfall patterns; (III) the NAO does have an effect on summer rainfall patterns, although the spatiality of these patterns is less distinctive than in winter. As far as we are aware this is the first national scale, monthly NAO-rainfall analysis undertaken for a long period. Article in Journal/Newspaper North Atlantic North Atlantic oscillation University of the West of England, Bristol: UWE Research Repository Hydrology Research 50 6 1549 1563 |
institution |
Open Polar |
collection |
University of the West of England, Bristol: UWE Research Repository |
op_collection_id |
ftuniwestengland |
language |
unknown |
description |
The NAO has been long studied as the primary teleconnection affecting British and European climate. However, previous studies have focused on extremes or have been spatially and temporally limited. In recent years our ability to predict the NAO has improved. Also new research is emerging suggesting that the NAO is a key driver of hydrological extremes. These factors mean there is renewed value in enhancing our understanding of how the NAO influences general rainfall patterns. In this study we spatially analyse correlations between NAO indices and monthly rainfall data and the Standardised Precipitation Index. We also map mean monthly rainfall differences under NAO positive and negative conditions. Based on our results we identify three main observations: (I) there is sensitivity in the rainfall patterns to the chosen NAO index; (II) there is a clear winter north/west and south/east divide in rainfall patterns; (III) the NAO does have an effect on summer rainfall patterns, although the spatiality of these patterns is less distinctive than in winter. As far as we are aware this is the first national scale, monthly NAO-rainfall analysis undertaken for a long period. |
format |
Article in Journal/Newspaper |
author |
West, H. Quinn, N. Horswell, M. |
spellingShingle |
West, H. Quinn, N. Horswell, M. Regional rainfall response to the North Atlantic Oscillation (NAO) across Great Britain |
author_facet |
West, H. Quinn, N. Horswell, M. |
author_sort |
West, H. |
title |
Regional rainfall response to the North Atlantic Oscillation (NAO) across Great Britain |
title_short |
Regional rainfall response to the North Atlantic Oscillation (NAO) across Great Britain |
title_full |
Regional rainfall response to the North Atlantic Oscillation (NAO) across Great Britain |
title_fullStr |
Regional rainfall response to the North Atlantic Oscillation (NAO) across Great Britain |
title_full_unstemmed |
Regional rainfall response to the North Atlantic Oscillation (NAO) across Great Britain |
title_sort |
regional rainfall response to the north atlantic oscillation (nao) across great britain |
publisher |
IWA Publishing |
publishDate |
2019 |
url |
http://eprints.uwe.ac.uk/40752/ http://eprints.uwe.ac.uk/40752/1/West%20et%20al%20-%20NAO%20Rainfall%20Paper.pdf |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
http://eprints.uwe.ac.uk/40752/1/West%20et%20al%20-%20NAO%20Rainfall%20Paper.pdf West, H. , Quinn, N. and Horswell, M. (2019) Regional rainfall response to the North Atlantic Oscillation (NAO) across Great Britain. Hydrology Research. ISSN 0029-1277 Available from: http://eprints.uwe.ac.uk/40752 |
container_title |
Hydrology Research |
container_volume |
50 |
container_issue |
6 |
container_start_page |
1549 |
op_container_end_page |
1563 |
_version_ |
1766131831984357376 |