Ecological limits of hydrologic alteration: environmental flows for regional water management
The Ecological Limits of Hydrologic Alteration (ELOHA) is a new framework offering a flexible, scientifically defensible compromise for broadly assessing environmental flow needs when in-depth studies cannot be performed for all rivers in a region. ELOHA builds upon the wealth of knowledge gained from decades of river-specific studies, and applies that knowledge to geographic areas as large as a state, province, nation, or large river basin.