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Article

Spatio-Temporal Variability in North Atlantic Oscillation Monthly Rainfall Signatures in Great Britain

Centre for Water, Communities and Resilience, Department of Geography and Environmental Management, University of the West of England, Bristol BS16 1QY, UK
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Academic Editors: Ankit Agarwal, Naiming Yuan, Kevin K. W. Cheung and Roopam Shukla
Atmosphere 2021, 12(6), 763; https://doi.org/10.3390/atmos12060763
Received: 15 May 2021 / Revised: 7 June 2021 / Accepted: 11 June 2021 / Published: 13 June 2021
The North Atlantic Oscillation (NAO) is the primary atmospheric-oceanic circulation/teleconnection influencing regional climate in Great Britain. As our ability to predict the NAO several months in advance increases, it is important that we improve our spatio-temporal understanding of the rainfall signatures that the circulation produces. We undertake a high resolution spatio-temporal analysis quantifying variability in rainfall response to the NAO across Great Britain. We analyse and map monthly NAO-rainfall response variability, revealing the spatial influence of the NAO on rainfall distributions, and particularly the probability of wet and dry conditions/extremes. During the winter months, we identify spatial differences in the rainfall response to the NAO between the NW and SE areas of Britain. The NW area shows a strong and more consistent NAO-rainfall response, with greater probability of more extreme wet/dry conditions. However, greater NAO-rainfall variability during winter was found in the SE. The summer months are marked by a more spatially consistent rainfall response; however, we find that there is variability in both wet/dry magnitude and directionality. We note the implications of these spatially and temporally variable NAO-rainfall responses for regional hydrometeorological predictions and highlight the potential explanatory role of other atmospheric-oceanic circulations. View Full-Text
Keywords: North Atlantic Oscillation; NAO; rainfall signatures; spatio-temporal analysis North Atlantic Oscillation; NAO; rainfall signatures; spatio-temporal analysis
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MDPI and ACS Style

West, H.; Quinn, N.; Horswell, M. Spatio-Temporal Variability in North Atlantic Oscillation Monthly Rainfall Signatures in Great Britain. Atmosphere 2021, 12, 763. https://doi.org/10.3390/atmos12060763

AMA Style

West H, Quinn N, Horswell M. Spatio-Temporal Variability in North Atlantic Oscillation Monthly Rainfall Signatures in Great Britain. Atmosphere. 2021; 12(6):763. https://doi.org/10.3390/atmos12060763

Chicago/Turabian Style

West, Harry, Nevil Quinn, and Michael Horswell. 2021. "Spatio-Temporal Variability in North Atlantic Oscillation Monthly Rainfall Signatures in Great Britain" Atmosphere 12, no. 6: 763. https://doi.org/10.3390/atmos12060763

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