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Scientific Investigations Report 2007–5178

Scientific Investigations Report 2007–5178

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Conversion Factors and Datums

Conversion Factors

Multiply By To obtain
acre 0.004047 square kilometer (km2)
cubic foot per second (ft3/s) 0.02832 cubic meter per second (m3/s)
cubic yard (yd3) 0.7646 cubic meter (m3)
foot (ft) 0.3048 meter (m)
inch (in.) 2.54 centimeter (cm)
mile (mi) 1.609 kilometer (km)
million gallons (Mgal) 3,785 cubic meter (m3)
square mile (mi2) 2.590 square kilometer (km2)
ton per minute (ton/min) 0.9072 metric ton per minute
ton per square mile (ton/mi2) 0.3503 megagram per squarekilometer (Mg/km2)

Temperature in degrees Fahrenheit (°F) may be converted to degrees Celsius (°C) as follows:


Suspended-sediment concentration (SSC) is reported in milligrams per liter (mg/L).


Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 1929). Altitude, as used in this report, refers to distance above the vertical datum. Horizontal coordinate information is referenced to the North American Datum of 1927 (NAD 27).

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