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Stream-Temperature Charcteristics in Georgia

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Stream-Temperature Charcteristics in Georgia STREAM-TEMPERATURE CHARACTERISTICS IN GEORGIA U.S. GEOLOGICAL SURVEY Prepared in cooperation with the GEORGIA DEPARTMENT OF NATURAL RESOURCES ENVIRONMENTAL PROTECTION DIVISION Water-Resources Investigations Report 96-4203 STREAM-TEMPERATURE CHARACTERISTICS IN GEORGIA By T.R. Dyar and S.J. Alhadeff ______________________________________________________________________________ U.S. GEOLOGICAL SURVEY Water-Resources Investigations Report 96-4203 Prepared in cooperation with GEORGIA DEPARTMENT OF NATURAL RESOURCES ENVIRONMENTAL PROTECTION DIVISION Atlanta, Georgia 1997 U.S. DEPARTMENT OF THE INTERIOR BRUCE BABBITT, Secretary U.S. GEOLOGICAL SURVEY Charles G. Groat, Director For additional information write to: Copies of this report can be purchased from: District Chief U.S. Geological Survey U.S. Geological Survey Branch of Information Services 3039 Amwiler Road, Suite 130 Denver Federal Center Peachtree Business Center Box 25286 Atlanta, GA 30360-2824 Denver, CO 80225-0286 CONTENTS Page Abstract . 1 Introduction . 1 Purpose and scope . 2 Previous investigations. 2 Station-identification system . 3 Stream-temperature data . 3 Long-term stream-temperature characteristics. 6 Natural stream-temperature characteristics . 7 Regression analysis . 7 Harmonic mean coefficient . 7 Amplitude coefficient. 10 Phase coefficient . 13 Statewide harmonic equation . 13 Examples of estimating natural stream-temperature characteristics . 15 Panther Creek . 15 West Armuchee Creek . 15 Alcovy River . 18 Altamaha River . 18 Summary of stream-temperature characteristics by river basin . 19 Savannah River basin . 19 Ogeechee River basin. 25 Altamaha River basin. 25 Satilla-St Marys River basins. 26 Suwannee-Ochlockonee River basins . 27 Chattahoochee River basin. 27 Flint River basin. 28 Coosa River basin. 29 Tennessee River basin . 31 Selected references. 31 Tabular data . 33 Graphs showing harmonic stream-temperature curves of observed data and statewide harmonic equation for selected stations, figures 14-211 . 51 iii ILLUSTRATIONS Page Figure 1. Map showing locations of 198 periodic and 22 daily stream-temperature stations, major river basins, and physiographic provinces in Georgia. 4 2. Map showing names of major streams and locations of 78 stream-temperature stations used to compute harmonic stream-temperature regression equations . 5 3. Graph showing generalized harmonic stream-temperature curve showing harmonic equation coefficients . 6 Figures 4-8. Maps showing: 4. Harmonic mean stream temperatures for 78 natural-condition stations . 8 5. Residuals of harmonic mean stream temperatures for 78 natural-condition stations . 9 6. Amplitude coefficients for 78 natural-condition stations . 11 7. Residuals of amplitude coefficients for 78 natural-condition stations . 12 8. Phase coefficients for 78 natural-condition stations . 14 Figures 9-11. Graphs showing harmonic stream-temperature curves of observed data and statewide harmonic equation for stations: 9. Panther Creek near Toccoa, Georgia (station 02182000), September 1959 to June 1974 . 16 10. West Armuchee Creek near Subligna, Georgia (station 02388000), May 1960 to April 1982 . 16 11. Alcovy River above Covington, Georgia (station 02208450), October 1972 to July 1975 . 17 Figure 12. Map showing locations of principal power-generating facilities and major reservoirs in Georgia . 20 13. Map showing locations of cities in Georgia having populations greater than 10,000 . 24 Figures 14-211. Graphs showing harmonic stream-temperature curves of observed data and statewide harmonic equation for stations: 14. Chattooga River near Clayton, Georgia (station 02177000), September 1957 to December 1984 . 52 15. Tallulah River near Clayton, Georgia (station 02178400), July 1964 to August 1984 . 52 16. Panther Creek near Toccoa, Georgia (station 02182000), September 1959 to June 1974 . 53 17. Savannah River near Iva, South Carolina (station 02187500), May 1958 to November 1984 . 53 18. Beaverdam Creek at Dewy Rose, Georgia (station 02188500), February 1958 to July 1975 . 54 19. Savannah River near Calhoun Falls, South Carolina (station 02189000), September 1957 to July 1974 . 54 20. North Fork Broad River above Toccoa, Georgia (station 02189050), October 1958 to August 1968 . 55 21. Denmans Creek near Toccoa, Georgia (station 02189100), October 1958 to October 1969 . 55 22. North Fork Broad River near Toccoa, Georgia (station 02189500), October 1958 to August 1968 . 56 23. Bear Creek near Mize, Georgia (station 02189600), October 1958 to July 1968 . 56 24. North Fork Broad River near Lavonia, Georgia (station 02190000), July 1958 to August 1968 . ..
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