Fig. 4
Lead and lagged correlations of the nation-wide drought awareness (DAPC1) with the state-level drought awareness (DAi) or risk (DRi) over the four US regions (a Western Region, b Northeastern Region, c Central Region, and d Southeastern Region). Blue dots depict the temporal correlation coefficients of DAPC1 and DAi (left in each panel)/DRi (right) from −3 months through +3 months. Black (red) dots depict the means (medians) of lead and lagged temporal correlation coefficients of the corresponding states to each region
