1. Chapter 9 Water Resources Geosystems 5e An Introduction to Physical Geography Robert W. Christopherson Charlie Thomsen

3. Water Resources The Hydrologic Cycle Soil-Water-Budget Concept Groundwater Resources Our Water Supply

4. The Hydrologic Cycle A Hydrologic Cycle Model Surface Water

5. Hydrologic Cycle Model Figure 9.1

6. Surface Water Figure 9.3

7. Soil-Water-Budget Concept The Soil-Water Balance Equation Sample Water Budgets Water Budget and Water Resources

8. The Soil-Water Balance Equation Figure 9.4

9. Precipitation in North America Figure 9.6

10. Potential Evapotranspiration Figure 9.8

11. Types of Soil Moisture Figure 9.9

12. Sample Water Budget Figure 9.11

13. Groundwater Resources Groundwater Profile and Movement Aquifers, Wells, and Springs Overuse of Groundwater Pollution of Groundwater

14. Groundwater potential Figure 9.15

15. Groundwater Characteristics Figure 9.16

16. Groundwater Characteristics Figure 9.16

17. High Plains Aquifer Overdraft Figure 1

18. Our Water Supply Water Supply in the United States Instream, Nonconsumptive, and Consumptive Uses Future Considerations

19. US Water Budget Figure 9.20

20. Water Withdrawal by Sector Figure 9.21

21. Global Water Scarcity Figure 9.22

22. End of Chapter 9 Geosystems 5e An Introduction to Physical Geography Robert W. Christopherson Charlie Thomsen