Abstract
Late summer streamflow in western and central Oregon and northern California is almost exclusively due to immense groundwater storage in the Cascade Range. The volume of water stored in permeable lava flows in the Cascades is seven times that stored as snow. Nonetheless, until recently, virtually all examinations of streamflow trends under future climates in the West have focused on the anticipated loss of snowpack. This has painted an incomplete picture of the looming water resource crisis that is expected because of global warming.
Keywords
Groundwater,
hydrology,
Cascade Range,
snowpack,
climate change,
streamflow.
Citation
Thompson, J. 2007. Running dry: Where will the West get its water?. Science Findings 97. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 5 p