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<br />TABLES <br /> <br />l. U.S, Gcological Survey gaging slations used in this study................,.....................,..............,..,................, 6 <br />2. Stage-discharge rating curvcs used to construct the publishcd record of daily mean <br />discharge at the Lees FCITY gaging station during watcr years 1921-86......................".....................,....... 34 <br />3. Datcs when thc shifting-control method was used to constmct the pub1ishcd record of daily <br />mean discharge at the Lccs FelTY gaging station during water years 192]-86....................................,...... 35 <br /> <br />CONVERSION FACTORS AND VERTICAL AND HORIZONTAL DATUMS <br /> <br />CONVERSION FACTORS <br /> <br />In this pnper, all measurements are reported in the im:h-pound system to maitltain consistency with histori- <br />cal and Ctun:nt U.S. Geological Survey data. Unpublished raw data and historical memoranda presented in <br />this papel' refer to stage in feet and discharge in cuhic feet per second, and historical photographs show stntf <br />gages Illflrked in feet. For readers who wish to conVert stage, discharge, and water volume from the inch- <br />pound system of units to the metric system of units, the conversion factors arc listed helow: <br /> <br />Multiply <br /> <br />foot (rt) <br />mile <br />cubic foot per second oPts) <br />acre-foot <br />ton, short (2,000 pounds) <br /> <br />By <br /> <br />0,3048 <br />1,(,09 <br />0.02832 <br />1,235 <br />0.9074 <br /> <br />To obtain <br /> <br />mCler(m) <br />kilometer (km) <br />euhic meter per second (m3ts) <br />cubic meter (m3) <br />metrie ton (t) <br /> <br />VERTICALANO HORIZONTAL OATUMS <br /> <br />Sea l.evel-ln this paper, vertical coordinate information is referenced to the National Geodetic Vertical <br />Datum of [929 (NGVD1929). Thus, the term "sea leve[" refers to NGVDI929. Horizontal coordinate <br />information is referenced to the North American Datum of 1983 (NAD83). <br /> <br />VI Conversion Factors and Vertical and Horizontal Datums <br />