Articles | Volume 27, issue 5
https://doi.org/10.5194/hess-27-1151-2023
https://doi.org/10.5194/hess-27-1151-2023
Research article
 | 
16 Mar 2023
Research article |  | 16 Mar 2023

Projected changes in droughts and extreme droughts in Great Britain strongly influenced by the choice of drought index

Nele Reyniers, Timothy J. Osborn, Nans Addor, and Geoff Darch

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Cited articles

Allen, R. G., Pereira, L. S., Raes, D., and Smith, M.: Crop evapotranspiration-Guidelines for computing crop water requirements, FAO Irrigation and drainage paper 56, Food and Agricultural Organisation of the United Nations (FAO), Rome, 300 pp., D05109, ISBN 92-5-104219-5, 1998. a
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Bachmair, S., Tanguy, M., Hannaford, J., and Stahl, K.: How well do meteorological indicators represent agricultural and forest drought across Europe?, Environ. Res. Lett., 13, 034042, https://doi.org/10.1088/1748-9326/aaafda, 2018. a
Barker, L. J., Hannaford, J., Chiverton, A., and Svensson, C.: From meteorological to hydrological drought using standardised indicators, Hydrol. Earth Syst. Sci., 20, 2483–2505, https://doi.org/10.5194/hess-20-2483-2016, 2016. a, b, c, d
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Short summary
In an analysis of future drought projections for Great Britain based on the Standardised Precipitation Index and the Standardised Precipitation Evapotranspiration Index, we show that the choice of drought indicator has a decisive influence on the resulting projected changes in drought characteristics, although both result in increased drying. This highlights the need to understand the interplay between increasing atmospheric evaporative demand and drought impacts under a changing climate.