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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Human influence on climate in the 2014 southern England winter floods and their impacts
AU - Schaller, Nathalie
AU - Kay, Alison L.
AU - Lamb, Rob
AU - Massey, Neil R.
AU - Van Oldenborgh, Geert Jan
AU - Otto, Friederike E. L.
AU - Sparrow, Sarah N.
AU - Vautard, Robert
AU - Yiou, Pascal
AU - Ashpole, Ian
AU - Bowery, Andy
AU - Crooks, Susan M.
AU - Haustein, Karsten
AU - Huntingford, Chris
AU - Ingram, William J.
AU - Jones, Richard G.
AU - Legg, Tim
AU - Miller, Jonathan
AU - Skeggs, Jessica
AU - Wallom, David
AU - Weisheimer, Antje
AU - Wilson, Simon
AU - Stott, Peter A.
AU - Allen, Myles R.
PY - 2016/5/26
Y1 - 2016/5/26
N2 - A succession of storms reaching southern England in the winter of 2013/2014 caused severe floods and £451 million insured losses. In a large ensemble of climate model simulations, we find that, as well as increasing the amount of moisture the atmosphere can hold, anthropogenic warming caused a small but significant increase in the number of January days with westerly flow, both of which increased extreme precipitation. Hydrological modelling indicates this increased extreme 30-day-average Thames river flows, and slightly increased daily peak flows, consistent with the understanding of the catchment’s sensitivity to longer-duration precipitation and changes in the role of snowmelt. Consequently, flood risk mapping shows a small increase in properties in the Thames catchment potentially at risk of riverine flooding, with a substantial range of uncertainty, demonstrating the importance of explicit modelling of impacts and relatively subtle changes in weather-related risks when quantifying present-day e_ects of human influence on climate.
AB - A succession of storms reaching southern England in the winter of 2013/2014 caused severe floods and £451 million insured losses. In a large ensemble of climate model simulations, we find that, as well as increasing the amount of moisture the atmosphere can hold, anthropogenic warming caused a small but significant increase in the number of January days with westerly flow, both of which increased extreme precipitation. Hydrological modelling indicates this increased extreme 30-day-average Thames river flows, and slightly increased daily peak flows, consistent with the understanding of the catchment’s sensitivity to longer-duration precipitation and changes in the role of snowmelt. Consequently, flood risk mapping shows a small increase in properties in the Thames catchment potentially at risk of riverine flooding, with a substantial range of uncertainty, demonstrating the importance of explicit modelling of impacts and relatively subtle changes in weather-related risks when quantifying present-day e_ects of human influence on climate.
U2 - 10.1038/nclimate2927
DO - 10.1038/nclimate2927
M3 - Journal article
VL - 6
SP - 627
EP - 634
JO - Nature Climate Change
JF - Nature Climate Change
SN - 1758-678X
IS - 6
ER -