The National Integrated Drought Information System (NIDIS) is pleased to release A Strategy for the National Coordinated Soil Moisture Monitoring Network: Coordinated, High-Quality, Nationwide Soil Moisture Information for the Public Good (also known as the “NCSMMN Strategy”). Developed in part to fulfill the requirements of the NIDIS Reauthorization Act of 2018 (P.L. 115-423
Drought is a pretty complicated climate extreme to define. Most commonly, it is defined as a precipitation deficit - much less precipitation falls than what is typically expected for a given time period.
But drought can be observed in lots of ways: lack of snowpack, low flows in rivers and streams, dry soils, higher evaporative losses, low lake/reservoir levels, etc. Because the climate varies