Drought Classifications

Did you know that there are different classifications of drought? The U.S. Geological Survey defines drought types as: 
  • Meteorological: Lack of rain.
  • Agricultural: More serious; the subsoil is dry and the roots of plants are water-starved.
  • Hydrological: Water sources are low and in extreme cases, wells run dry.
  • Sociological: People suffer because of meteorological and hydrological conditions. They are often forced to migrate to other areas as environmental refugees.
  • Legislative: When the distribution of water is imposed by law.