Correlation between Ti→jS(r) and Ti→jM(r) for pair of locations (gray dots) separated by a distance of (A) r=1 km, (B) r=5 km, (C) r=20 km, (D) r=50 km, and (E) r=100 km for D1. Correlation between Ti→jS(r) and Ti→jM(r) for pair of locations (gray dots) separated by a distance of (A) r=1 km, (B) r=5 km, (C) r=20 km, (D) r=50 km, and (E) r=100 km for D1. We find all curves collapse into a straight line when TS¯ is rescaled by rδr for (F) D1, (G) D2, and (H) D3. Pierre Deville et al. PNAS 2016;113:7047-7052 ©2016 by National Academy of Sciences