Articles | Volume 17, issue 6
https://doi.org/10.5194/essd-17-2249-2025
© 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-17-2249-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Distribution and characteristics of lightning-ignited wildfires in boreal forests – the BoLtFire database
School of Life Sciences, Earth Observation for Ecosystem Management, Technical University of Munich, Freising, Germany
Ivan Bratoev
School of Engineering and Design, Architectural Informatics, Technical University of Munich, Munich, Germany
Morgan A. Crowley
Canadian Forest Service (Great Lakes Forestry Centre), Natural Resources Canada, Sault Ste. Marie, Ontario, Canada
Yanan Zhu
Advanced Environmental Monitoring (AEM), Germantown, Maryland, USA
Cornelius Senf
School of Life Sciences, Earth Observation for Ecosystem Management, Technical University of Munich, Freising, Germany
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Simon Besnard, Alba Viana-Soto, Henrik Hartmann, Marco Patacca, Viola H. A. Heinrich, Katja Kowalski, Maurizio Santoro, Wanda De Keersmaecker, Ruben Van De Kerchove, Martin Herold, and Cornelius Senf
EGUsphere, https://doi.org/10.5194/egusphere-2025-6288, https://doi.org/10.5194/egusphere-2025-6288, 2025
This preprint is open for discussion and under review for Biogeosciences (BG).
Short summary
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Europe’s forests store vast amounts of carbon, but climate-driven disturbances are becoming more frequent. By combining satellite records with information on forest age and structure, we show that recent disturbances increasingly affect the oldest and most carbon-rich forests, particularly spruce forests in Central Europe. This emerging pattern puts long-accumulated carbon at risk and may reduce the long-term climate benefits provided by Europe’s forests.
Alba Viana-Soto and Cornelius Senf
Earth Syst. Sci. Data, 17, 2373–2404, https://doi.org/10.5194/essd-17-2373-2025, https://doi.org/10.5194/essd-17-2373-2025, 2025
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Europe's forests are undergoing complex changes in response to increasing disturbances driven by climate and land use changes. Here, we present the European Forest Disturbance Atlas, a satellite-based approach for mapping annual forest disturbances across continental Europe from 1985 onwards. Maps provide insights into the year of disturbance occurrence, the actual frequency of disturbances, severity and the underlying causal agent, thus contributing to a future monitoring system envisioned for Europe.
Mauro Hermann, Matthias Röthlisberger, Arthur Gessler, Andreas Rigling, Cornelius Senf, Thomas Wohlgemuth, and Heini Wernli
Biogeosciences, 20, 1155–1180, https://doi.org/10.5194/bg-20-1155-2023, https://doi.org/10.5194/bg-20-1155-2023, 2023
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This study examines the multi-annual meteorological history of low-forest-greenness events in Europe's temperate and Mediterranean biome in 2002–2022. We systematically identify anomalies in temperature, precipitation, and weather systems as event precursors, with noteworthy differences between the two biomes. We also quantify the impact of the most extensive event in 2022 (37 % coverage), underlining the importance of understanding the forest–meteorology interaction in a changing climate.
Cornelius Senf and Rupert Seidl
Biogeosciences, 18, 5223–5230, https://doi.org/10.5194/bg-18-5223-2021, https://doi.org/10.5194/bg-18-5223-2021, 2021
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Europe was affected by an extreme drought in 2018. We show that this drought has increased forest disturbances across Europe, especially central and eastern Europe. Disturbance levels observed 2018–2020 were the highest on record for 30 years. Increased forest disturbances were correlated with low moisture and high atmospheric water demand. The unprecedented impacts of the 2018 drought on forest disturbances demonstrate an urgent need to adapt Europe’s forests to a hotter and drier future.
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Short summary
The pan-boreal lightning-ignited wildfire (BoLtFire) dataset spans the entire boreal forest from 2012 to 2022, focusing on fires of at least 200 ha. Developed using a new methodology to match lightning to wildfires in the boreal region, it includes 6902 fires – 4201 in Eurasia and 2701 in North America. BoLtFire provides new opportunities to model the ignition and spread dynamics of boreal wildfires and offers deeper insights into lightning-driven fire activity globally.
The pan-boreal lightning-ignited wildfire (BoLtFire) dataset spans the entire boreal forest from...
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