The Colorado River Basin is divided into upper and lower portions. It provides water to the Colorado River, a water source that serves 40 million people over seven states in the southwestern ...

K. Nowak, M. Hoerling, B. Rajagopalan, & E. Zagona (2012). “Colorado River Basin Hydroclimatic Variability,” Journal of Climate, 25 (2), 4389–4403. Abstract: An analysis of annual hydroclimatic ...

The Colorado River Basin’s water delivery reliability has continued to degrade since deciding these 2007 operational guidelines due to the imbalance of growing demand and dwindling supply. The ...