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Natural sciences
- Atmospheric physics
- Climatology
- Meteorology
Since the early 1980s, when satellites began to monitor vegetation greenness, a widespread increase in vegetation density ('greening') has been reported. Simultaneously, an increase in the frequency and intensity of extreme precipitation events (EPEs) has also been detected in many parts of the world. It is well known that both phenomena are caused by direct or indirect anthropogenic forcings and that they will continue and even worsen in the coming years. However, the relationship between land surface greening and the intensification of EPEs has not yet been investigated. Previous studies have shown that an increase in vegetation density results in an enhancement of terrestrial evaporation, mainly in transpiration. In addition, we have recently demonstrated that plant transpiration can act as the main source of moisture fuelling rainfall in European summer EPEs, as was the case during the Belgian floods in July 2021. Therefore, the main objective of the GEO-EuroPE project is precisely to answer the following question: would a potential increase in vegetation density intensify catastrophic rainfall events in Europe? To answer it, an interdisciplinary approach will be used, employing techniques that connect different fields, including, meteorology, climatology and climate change, ecology, Earth system modelling and remote sensing.