Inter-seasonal connection of typical European heatwave patterns to soil moisture

Abstract Although prolonged heat periods have become a recurring feature of European climate, little knowledge is available on dominant spatial patterns heatwaves and their influence moisture-related processes. Increased will help to improve heatwave drought prediction mitigation. This study uses hierarchical agglomerative clustering derive nine dominating from 50-member regional climate model (Canadian Regional Climate Model version 5, CRCM5-LE). The correspond well with clusters derived an observational data set (E-OBS) extreme historical events. Moreover, we analyse the occurrence in identified regarding soil moisture deficit present before after event. We show that negative anomalies preceding winter/spring (JFMA) can serve as predictor for South Europe. For North Europe, find correlation between number days summer autumn (OND) content.