Challenge: How to simulate 100 millennial heatwaves at the cost of 100 simulations?
Nudging a stochastic weather generator based on atmospheric circulation analogs towards high local temperatures [here temperature average between Madrid, Toulouse, Orly, De Bilt and Berlin], to obtain the warmest summers that could be, starting on a June 1st and the armest summers that could be, with a weather patterns that are similar to observations.