OCR Text |
Show CONTENTS Page English- to- Metric Conversion Factors v Abstract 1 Introduction 1 Hydrology of the Lake 3 Water Budget 4 Precipitation 6 Evaporation 7 Surface Inflow 11 Bear River 11 Weber River 14 Jordan River Basin 14 Miscellaneous Inflow 20 Ground- Water Inflow 20 Calibration of the Model 22 Diking Options 24 Salt Balance 24 Example of Model Simulation 26 Recommendations for Future Study 27 Conclusions 27 Selected References 28 Appendix 29 Glossary 29 Altitude, Area, and Volume Relationships of the Lake 30 Tables 9- 18 32- 54 ILLUSTRATIONS Figure 1. Hydrograph of Great Salt Lake, 1931- 73 2 2. Graph showing variation of load of dissolved solids in Great Salt Lake, 1964- 74 3 3. Map showing average annual precipitation on Great Salt Lake, 1931- 73 5 4. Graph showing average monthly distribution of precipitation and evaporation on Great Salt Lake, 1951- 60 7 5. Map showing average annual freshwater- lake evaporation for Great Salt Lake, 1931- 70 8 6. Map showing location of gaging sites used for estimating surface inflow to Great Salt Lake 10 7. Graph showing net change of tlow from State Highway 83 to the dike of the Bear River Migratory Bird Refuge 12 8. Schematic diagram showing relation of flows in lower Jordan River Basin 13 Page 9. Graph showing comparison of observed and computed lake altitudes during calibration of the model 15- 17 10. Graph showing annual inflow to Great Salt Lake from all sources, 1931- 73 21 11. Schematic diagram showing salt balance for proposed diking option 22 12. Graph showing lake altitude and concentration of dissolved solids for diking option 20 23 Table 1. Average annual precipitation and freshwater evaporation for various lake altitudes and diked areas 6 2. Average annual precipitation and freshwater evaporation from Willard Reservoir and wetland areas between long- term surface- inflow stations and the 4,200- foot shoreline of Great Salt Lake 9 3. Compilation of evaporation data for brines and freshwater 11 4. Compilation of data showing net change of flow from State Highway 83 to the dike of the Bear River Migratory Bird Refuge 13 5. Net change of flow between the Jordan River and the outlets from duck clubs and Farmington Bay Waterfowl Management Area 14 6. Bar chart of gaging- site records, 1931- 73 18 7. Statistical summary of estimates of monthly surface inflow to Great Salt Lake 19 8. Estimates of ground- water inflow to Great Salt Lake 20 9. Altitude, area, and volume relationships for various diking options and the north and south parts of Great Salt Lake 32- 33 10. Annual distribution of precipitation ratios during 1931- 73 32- 33 11. Monthly distribution of precipitation during 1951- 60 34- 35 12. Compilation of data for estimating annual freshwater evaporation, 1931- 70 36- 37 13. Surface flow from Bear River basin across State Highway 83, 1972- 74 water years 38 14. Discharge and specific- conductance data for outflow from the Bear River Migratory Bird Refuge near Brigham City 39 15. Discharge and specific- conductance data for outflow from the Farmington Bay Waterfowl Management Area, duck clubs, and Salt Lake City Sewage Canal 39 16. Monthly estimates of surface inflow to Great Salt Lake, 1931- 73 '. . . .40- 44 17. Total estimated surface- plus ground- water inflow to Great Salt Lake, 1931- 73 water years 45 18. Computer program to simulate the water and salt balance for selected diking options 46- 54 19. Example of computer- program output 27 |