Articles | Volume 19, issue 8
https://doi.org/10.5194/nhess-19-1629-2019
https://doi.org/10.5194/nhess-19-1629-2019
Research article
 | 
06 Aug 2019
Research article |  | 06 Aug 2019

Impact of the dry-day definition on Mediterranean extreme dry-spell analysis

Pauline Rivoire, Yves Tramblay, Luc Neppel, Elke Hertig, and Sergio M. Vicente-Serrano

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Latest update: 21 Apr 2024
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Short summary
In order to define a dry period, a threshold for wet days is usually considered to account for measurement errors and evaporation. In the present study, we compare the threshold of 1 mm d−1, the most commonly used threshold, to a time-varying threshold describing evapotranspiration to compare how the risk of extreme dry spells is estimated with both thresholds. Results indicate that considering a fixed threshold can underestimate extreme dry spells during the extended summer.
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