Fig. 5
From: A time-varying index for agricultural suitability across Europe from 1500–2000
Case study 2 (1775 AD). The left panels show the mean precipitation18, mean temperature16,17, and our measure of agricultural suitability for the year 1775, where we register the highest overall mean of agricultural suitability across Europe (0.55). Z-score values (right panels) for each grid i have been computed using the standard formula: Z-scorex,i,t = (xi,t − μx,i)/σx,i where \({\mu }_{{x}_{i},i}\) and σx,i are the mean and standard deviation of variable x in grid i over the 1500-2000AD period respectively. xi,t is either yearly mean temperature, precipitation, or mean agricultural suitability for grid i at time t.
