Acronyms and Definitions

This page contains acronyms and definitions relevant to the study of drought. Please send any additions and/or comments to the DRI Information Manager.


  • Acronyms from the GEWEX website.
  • AAFC: Agriculture and Agri-Food Canada
  • AET: Actual Evapo-Transpiration
  • CCCma: Canadian Centre for Climate Modelling and Analysis
  • MEC: Mod√©lisation Environnementale Communautaire
  • MESH: MEC-Surface and Hydrology
  • NAESI: National Agri-Environmental Standards Initiative


  • Glossary of Meteorology - Online Version (American Meteorological Society)