Articles | Volume 20, issue 11
Hydrol. Earth Syst. Sci., 20, 4503–4524, 2016
https://doi.org/10.5194/hess-20-4503-2016
Hydrol. Earth Syst. Sci., 20, 4503–4524, 2016
https://doi.org/10.5194/hess-20-4503-2016

Research article 10 Nov 2016

Research article | 10 Nov 2016

Climate elasticity of streamflow revisited – an elasticity index based on long-term hydrometeorological records

Vazken Andréassian et al.

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Short summary
We present a new method to derive the empirical (i.e., data-based) elasticity of streamflow to precipitation and potential evaporation. This method, which uses long-term hydrometeorological records, is tested on a set of 519 French catchments. We compare our method with the classical approach found in the literature and demonstrate its robustness and efficiency. Empirical elasticity is a powerful tool to test the extrapolation capacity of hydrological models.