Articles | Volume 26, issue 13
https://doi.org/10.5194/hess-26-3477-2022
https://doi.org/10.5194/hess-26-3477-2022
Research article
 | 
07 Jul 2022
Research article |  | 07 Jul 2022

Spatial extrapolation of stream thermal peaks using heterogeneous time series at a national scale

Aurélien Beaufort, Jacob S. Diamond, Eric Sauquet, and Florentina Moatar

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Latest update: 15 Jul 2024
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Short summary
We developed one of the largest stream temperature databases to calculate a simple, ecologically relevant metric – the thermal peak – that captures the magnitude of summer thermal extremes. Using statistical models, we extrapolated the thermal peak to nearly every stream in France, finding the hottest thermal peaks along large rivers without forested riparian zones and groundwater inputs. Air temperature was a poor proxy for the thermal peak, highlighting the need to grow monitoring networks.