Published via the yankee Geophysical Union as a part of the Water technological know-how and alertness Series.
The Deschutes is a "peculiar" dammed river in Oregon. Its dramatic juxtaposition of geology, topography, and weather provides a digital textbook of landforms and geomorphic tactics revealing Quaternary, Holocene, and extremely contemporary occasions of enormous significance. alongside the lively volcanism and tectonism, the current riverine panorama displays this episodic geomorphic background, as remnants of fluviatle positive aspects, large bars and boulders, mantle the panorama. A abnormal River: Geology, Geomorphology, and Hydrology of the Deschutes River, Oregon tells a desirable tale a few "striking, occasionally intimidating, panorama that serves to question generalities and is a laboratory during which to review targeted landforms and the methods that produce them."Content:
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Extra info for A Peculiar River
Variations from the long-term mean are mainly due to climate influences. The slight upward trend observed in the Deschutes River flow is not climatic and is likely due to canal leakage or effects of Lake Billy Chinook. Figure 7. Normal annual precipitation in the Deschutes River basin 1961-1990. Precipitation data are from Taylor . 40 GROUNDWATER HYDROLOGY OF THE UPPER DESCHUTES BASIN The spatial and temporal distribution of groundwater recharge to the upper Deschutes River basin from infiltration of precipitation was estimated for water years 1962-1994 by Boyd  using the water-balance method of Bauer and Vaccaro .
4 m /s by the gage just below Wickiup Reservoir at R M 2 2 6 . 5 m /s, or 9 6 % of the mean annual flow at this point is com posed of groundwater discharge. The next long-term stream gage on the river is just above Benham Falls at R M 181. The mean annual flow at Benham Falls is about 4 1 . 9 m /s. Estimating the proportion of flow at Benham Falls consist ing of groundwater discharge, however, is complicated by tributary inflow from the Little Deschutes River, which has 3 1 3 3 3 3 3 iLocations along the Deschutes River are in river miles (RM) upstream of the river mouth as marked on USGS topographic maps.
Geological Survey annual reports and water-supply papers. of tributary fan deposits along this section of Deschutes River [Curran and O'Connor, this volume), likely formed by floods and debris flows triggered by summer convective storms precipitating on the numerous short and steep tribu taries. These sediment yield and delivery estimates portrayed in figures 4 c , 4d, 13, 14, and 15 represent modern pre- and post-impoundment conditions for the past 5 0 to 8 0 years, including the effects of two large regional floods.