Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
HESS
Articles | Volume 26, issue 13
Articles | Volume 26, issue 13
https://doi.org/10.5194/hess-26-3477-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-26-3477-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 13
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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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.
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