Drought Events
Real-time monitoring from 250 scientific data sources
About Drought Monitoring
Drought is a slow-onset disaster that develops over weeks to months, affecting agriculture, water supply, and ecosystems. Unlike sudden-onset events, drought monitoring requires tracking persistent precipitation deficits and soil moisture anomalies.
Calamity integrates drought data from the US Drought Monitor, FEWS NET (Famine Early Warning Systems Network), the Copernicus European Drought Observatory (EDO), and GloFAS (Global Flood Awareness System) low-flow indicators. These are classified as Tier 4 sources with 6-24 hour polling intervals.
Due to the slow temporal evolution of drought, events use a 300 km deduplication radius and 7-day temporal window — the widest parameters of any disaster type. The CalamityScore weighs population exposure heavily since drought impacts are proportional to the size of the affected population.
Primary Data Sources
US Drought Monitor, FEWS NET, Copernicus EDO, SPEI Global Drought Monitor
Showing critical events only. Sign in to access all severity levels.
Sign In →No events found