Drought Risk Atlas"The National Drought Mitigation Center Drought Atlas project is intended to provide a wide range of decision makers with historical drought information and a web-based tool to visualize and assess their risk to drought. Using a station-based approach, decision makers are allowed to find the station closest to their area of interest as well as a cluster of stations that statistically has shown similar precipitation attributes. The stations with the longest period of record, a minimum of 40 years, with the most complete record were used to compute both the climatological and drought information to provide users with information from the best station data available."
