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<br />FIGURES <br /> <br />Page <br /> <br />I. Map showing location of areas of monumented cross sections and streamflow-gaging stations ........ 2 <br /> <br />2. Graphs showing summary of daily discharge statistics for the streamflow-gaging station <br />Colorado River at Lees Ferry (09380000), Arizona, water years 1992-99......................................... 6 <br /> <br />3. Graphs showing daily maximum discharge and daily suspended-sediment discharge on <br />tributaries. water years 1992-99.. ........................................................................................................ 9 <br /> <br />4-8. Maps showing: <br /> <br />4. Location of monumented cross sections between Glen Canyon Dam and <br /> <br />Lees Ferry, Arizona........................................................................................................................ II <br />5. Location of monumented cross sections between the confluence of the Pari a and <br />Colorado Rivers and Badger Creek Rapid ..................................................................................... 12 <br />6. Location of monumented cross sections between Badger Creek Rapid and the <br />confluence of the Little Colorado and Colorado Rivers ................................................................ 13 <br />7. Location of monumented cross sections between the confluence of the Little Colorado <br />and Colorado Rivers and Tanner Rapid ......................................................................................... 14 <br />8. Location of monumented cross sections between just above the conlluence of <br />Bright Angel Creek and the Colorado River and Lava Falls Rapid............................................... 15 <br /> <br />9. Schematic diagram showing data-collection and processing steps <br />A. Steps for collecting and preliminary processing of cross-section elevation data........................... 18 <br />B. Procedure for calculating the change in cross-sectional area between two <br />successive measurements... ............................................................... ........................ ............ ......... 18 <br /> <br />10-20. Graphs showing: <br /> <br />10. Discharge-elevation curves for three water-surface reference points <br />A. Sections pO I-p 15 .................................................................................................................... 22 <br /> <br />B. Sections la I-I 37 ..........................................,.......................................................................... 22 <br />C. Sections Ifl-If5............ ..................................... ................................. ........ ..................... ......... 22 <br /> <br />II. Normalized change-in-area data. excluding 1996 controlled-flood measurements, for <br />cross sections in the primary data set <br />A. Sections between the confluences of the Paria and Colorado Rivers. and the <br />Little Colorado and Colorado Rivers ...................................................................................... 24 <br />B. Sections between the confluences of the Little Colorado and Colorado Rivers. and <br />Bright Angel Creek and the Colorado River ........................................................................... 24 <br /> <br />12. Non-normalized change-in-area data, excluding 1996 controlled-flood measurements, <br />for cross sections in the primary data set <br />A. Sections between the confluences of the Paria and Colorado Rivers. and the <br />Little Colorado and Colorado Rivers ...................................................................................... 25 <br />B. Sections between the confluences of the Little Colorado and Colorado Rivers. and <br />Bright Angel Creek and the Colorado River ........................................................................... 25 <br /> <br />13. Bed-elevation measurements for selected cross sections in the primary data set below <br />the confluence of the Paria and Colorado Rivers........................................................................... 26 <br /> <br />iv Contents <br />