NDMC Monitoring Tools
The National Drought Mitigation Center produces drought monitoring tools and information to help people assess drought severity and impacts:
Also available is an in-depth comparison of drought indices that explains how various indices are calculated.
Download the program to calculate the Standardized Precipitation Index.
The Drought Risk Atlas, currently in beta testing, helps put drought in historic context.
Drought monitoring resources at a national scale are available from a variety of agencies and organizations. The NDMC has compiled an extensive set of resources related to drought indicators, remote sensing, forecasts & advisories, water resources, and data. Additional information can be found on the National Integrated Drought Information System (NIDIS) web portal.
Featured Monitoring Tools
The international drought community produces global-scale and country-specific drought monitoring tools and information. The NDMC has collected resources related to international drought indicators, remote sensing, forecasts and advisories, water resources, and data.