Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
HESS
Articles | Volume 20, issue 11
Articles | Volume 20, issue 11
https://doi.org/10.5194/hess-20-4503-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/hess-20-4503-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 20, issue 11
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, Laurent Coron, Julien Lerat, and Nicolas Le Moine

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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.
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