Articles | Volume 17, issue 11
https://doi.org/10.5194/essd-17-6621-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-17-6621-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Data description paper
| 
28 Nov 2025
Data description paper |
| 28 Nov 2025
| 28 Nov 2025
Dheed: an ERA5 based global database of compound dry and hot extreme events from 1950 to 2023
Mélanie Weynants
CORRESPONDING AUTHOR
Max Planck Institute for Biogeochemistry, Jena, Germany
Chaonan Ji
Institute for Earth System Research and Remote Sensing, Leipzig University, Leipzig, Germany
Nora Linscheid
Max Planck Institute for Biogeochemistry, Jena, Germany
Institute for Earth System Research and Remote Sensing, Leipzig University, Leipzig, Germany
Ulrich Weber
Max Planck Institute for Biogeochemistry, Jena, Germany
Miguel D. Mahecha
Institute for Earth System Research and Remote Sensing, Leipzig University, Leipzig, Germany
Helmholtz-Centre for Environmental Research, UFZ, Leipzig, Germany
Fabian Gans
CORRESPONDING AUTHOR
Max Planck Institute for Biogeochemistry, Jena, Germany
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Milan Flach, Alexander Brenning, Fabian Gans, Markus Reichstein, Sebastian Sippel, and Miguel D. Mahecha
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Drought and heat events affect the uptake and sequestration of carbon in terrestrial ecosystems. We study the impact of droughts and heatwaves on the uptake of CO2 of different vegetation types at the global scale. We find that agricultural areas are generally strongly affected. Forests instead are not particularly sensitive to the events under scrutiny. This implies different water management strategies of forests but also a lack of sensitivity to remote-sensing-derived vegetation activity.
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Short summary
The impacts of climate extremes such as heatwaves and droughts can be made worse when they happen at the same time. Dheed is a global database of dry and hot compound extreme events from 1950 to 2023. It can be combined with other data to study the impacts of those events on terrestrial ecosystems, specific species or human societies. Dheed's analysis confirms that extremely dry and hot days have become more common on all continents in recent decades, especially in Europe and Africa.
The impacts of climate extremes such as heatwaves and droughts can be made worse when they...
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