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![Figure 12.—Trend (1950 to 2000) in the difference between annual precipitation and annual stream discharge for selected major river basins in the United States: Mississippi, Columbia, Colorado, Susquehanna, Sacramento, and Southeast Basins. Data were area-weighted averaged. Figure modified from Walter and others (2004); reproduced with permission. [mm, millimeters; mm a-1, millimeters per year’]](images/gallery-1/large/pp1386a1-fig12.jpg)
Figure 12. Trend (1950 to 2000) in the difference between annual precipitation and annual stream discharge for selected major river basins in the United States: Mississippi, Columbia, Colorado, Susquehanna, Sacramento, and Southeast Basins. Data were area-weighted averaged. Figure modified from Walter and others (2004); reproduced with permission. [mm, millimeters; mm a-1, millimeters per year’] |