This study investigates present and future European heat wave magnitudes. represented by the Heat Wave Magnitude Index-daily (HWMId). for regional climate models (RCMs) and the driving global climate models (GCMs) over Europe. A subset of the large EURO-CORDEX ensemble is employed to study sources of uncertainties related to the choice of GCMs. https://bwcpowersports.shop/product-category/collections/