Scientific Investigations Report 2006–5036
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5036
Figure 5. Water budget, derived from an approximation of 2003–2005 conditions, for Lower Klamath and Tule Lake National Wildlife Refuges, Oregon and California.
Percentages pertain to either inflows or outflows for each refuge. ET=combined open-water evaporation and evapotranspiration; GW=ground water, and SW=surface water. Ground-water flow through the refuges as shown in the diagram is consistent with measured ground-water elevation data in the region. However, percentages assigned to the ground-water fluxes are based on residuals from surface-water budget analyses. The residuals are a result of both probable unmeasured\ground-water flow and surface-water flow measurement error.
For more information about USGS activities in Oregon, visit the USGS Oregon Water Science Center home page.