Say time series data T1 follows a normal distribution N(mean,sd), and the base time series data T0 follows a normal distribution N(mean0,sd0). I want to calibrate T1 to make the same distribution as T0. How do I do this? The real problem is that T1 is yearly rainfall in the past decade, and T2 is simulated rainfall from IPCC models. I want to calibrate T2 base on T1.