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Extremes of European temperature in ENSEMBLES regional climate models

Conferencia: European Geosciences Union General Assembly 2010
Año: 2010
Tipo de contribución: Oral
Archivo PDF: 2010_frias_EGU.pdf
Poster: 2010_EGU_Frias_Talk.pdf
, R. Minguez, , F. J. Méndez

Session: CL3.7 Extreme events and impacts

In recent years, there has been an increasing interest in studying the impacts of climate extremes in different sectors (agriculture, energy, insurance, etc.). In particular, extreme temperatures and heat waves have had a big impact in European socioeconomic activities during the last years (e.g. the 2003 heat wave in France); moreover, climate change has the potential to alter the prevalence and severity of extremes thus given rise to more severe impacts with unpredictable consequences. Regional climate models offer the opportunity to analyze and project in different future scenarios the variability of extremes at regional time scales. In the present work, we estimate changes of maximum temperatures in Europe using two state-of-the-art regional circulation models from the EU ENSEMBLES project. Regional climate models are used as dynamical downscaling tools to provide simulations on smaller scales than those represented for global climate models. Extremes are expressed in terms of return values derived from a time-dependent generalized extreme value (GEV) model for monthly maxima. The study focuses on the end of the 20th century (1961-2000), used as a calibration/validation period, and analyzes the changes projected for the period 2020-2050 considering the A1B emission scenario.

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