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On the key role of droughts in the dynamics of summer fires in Mediterranean Europe

AbstractSummer fires frequently rage across Mediterranean Europe, often intensified by high temperatures and droughts. According to the state-of-the-art regional fire risk projections, in forthcoming decades climate effects are expected to become stronger and possibly overcome fire prevention efforts. However, significant uncertainties exist and the direct effect of climate change in regulating fuel moisture (e.g. warmer conditions increasing fuel dryness) could be counterbalanced by the indirect effects on fuel structure (e.g. warmer conditions limiting fuel amount), affecting the transition between climate-driven and fuel-limited fire regimes as temperatures increase. Here we analyse and model the impact of coincident drought and antecedent wet conditions (proxy for the climatic factor influencing total fuel and fine fuel structure) on the summer Burned Area (BA) across all eco-regions in Mediterranean Europe. This approach allows BA to be linked to the key drivers of fire in the region. We show a statistically significant relationship between fire and same-summer droughts in most regions, while antecedent climate conditions play a relatively minor role, except in few specific eco-regions. The presented models for individual eco-regions provide insights on the impacts of climate variability on BA, and appear to be promising for developing a seasonal forecast system supporting fire management strategies.
- University of California, Irvine United States
- Universitat Polite`cnica de Catalunya Spain
- Center for Hydrometeorology and Remote Sensing United States
- University of Barcelona Spain
- Center for Hydrometeorology and Remote Sensing United States
Ecologia dels focs, :Desenvolupament humà i sostenible::Medi ambient [Àrees temàtiques de la UPC], summer fires, Incendis forestals, Forest fires, Science, Sequeres, Fire management, Fire prevention, Article, Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Medi ambient, Mediterrània (Regió), Seasonal forecasting, Summer fires, Canvi climàtic, Climate variability, Previsió del temps, Mediterranean Region, Q, R, Climatic changes, Prevenció d'incendis, burned area, Climatic change, Droughts, climate change, Medicine, Forecasting--Computer simulation, Canvis climàtics
Ecologia dels focs, :Desenvolupament humà i sostenible::Medi ambient [Àrees temàtiques de la UPC], summer fires, Incendis forestals, Forest fires, Science, Sequeres, Fire management, Fire prevention, Article, Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Medi ambient, Mediterrània (Regió), Seasonal forecasting, Summer fires, Canvi climàtic, Climate variability, Previsió del temps, Mediterranean Region, Q, R, Climatic changes, Prevenció d'incendis, burned area, Climatic change, Droughts, climate change, Medicine, Forecasting--Computer simulation, Canvis climàtics
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).237 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 0.1% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Top 10% impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 1% visibility views 135 download downloads 110 - 135views110downloads
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