Natural Hydrograph

Reclamation currently manages flows in the Klamath River in a manner that approximates the natural hydrograph, represented by real-time climate and hydrological conditions. 

Specifically, wetter hydrologic conditions in the upper Klamath Basin result in larger flows in the mainstem Klamath River.  Whereas drier hydrologic conditions in the upper Klamath Basin result in lower flows in the mainstem Klamath River.  Hydrologic variables including UKL elevation, UKL net inflow, Williamson River flow, and tributary accretions downsteam of Link River are applied to a series of equations developed in coordination with NMFS and Fish and Wildlife Service to calculate daily flows for Iron Gate Dam.