Paper No. 95046 of the Water Resources Bulletin. Discussions are open until June 1, 1996.
MITIGATING IMPACTS OF A SEVERE SUSTAINED DROUGHT ON COLORADO RWER WATER RESOURCES1
Version of Record online: 8 JUN 2007
JAWRA Journal of the American Water Resources Association
Volume 31, Issue 5, pages 925–938, October 1995
How to Cite
Sangoyomi, T. B. and Harding, B. L. (1995), MITIGATING IMPACTS OF A SEVERE SUSTAINED DROUGHT ON COLORADO RWER WATER RESOURCES. JAWRA Journal of the American Water Resources Association, 31: 925–938. doi: 10.1111/j.1752-1688.1995.tb03411.x
- Issue online: 8 JUN 2007
- Version of Record online: 8 JUN 2007
- water resources planning;
- water policy/regulation/decision making;
- water management;
- water law;
- social and political;
- water quality;
ABSTRACT: We evaluated the effects of institutional responses developed for coping with a severe sustained drought (SSD) in the Colorado River Basin on selected system variables using a SSD inflow hydrology derived from the drought which occurred in the Colorado River basin from 1579–1616. Institutional responses considered are reverse equalization, salinity reduction, minimum flow requirements, and temporary suspension of the delivery obligation of the Colorado River Compact. Selected system variables (reservoir contents, streamflows, consumptive uses, salinity, and power generation) from scenarios incorporating the drought-coping responses were compared to those from Baseline conditions using the current operating criteria. The coping responses successfully mitigated some impacts of the SSD on consumptive uses in the Upper Basin with only slight impacts on consumptive uses in the Lower Basin, and successfully maintained specified minimum streamflows throughout the drought with no apparent effect on consumptive uses. The impacts of the coping responses on other system variables were not as clear cut. We also assessed the effects of the drought-coping responses to normal and wet hydrologic conditions to determine if they were overly conservative. The results show that the rules would have inconsequential effects on the system during normal and wet years.