Use of Temperature Control Curtains to Control Reservoir Release WaterTemperatures

摘要

Reclamation (Bureau of Reclmation) has constructed four temperature controlcurtains to reduce release water temperature structures in the Sacramento and Trinity River drainages in northern California. Curtains can provide selective withdrawal at intake structures, control topography induced mixing, and control interfacial shear mixing associated with plunging density current entering reservoirs. Comprehensive field monitoring has been conducted to measure curtain performance characteristics. Monitoring included extensive temperature profiling and velocity profiling and velocity profiling using an ADCP (acoustic Doppler current profiler). This report presents and summarizes curtain performance data collected in Lewiston and Whiskeytown Reservoirs for the years 1992 through 1994.