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Scientific Investigations Report 2008–5076

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2008–5076

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Conversion Factors and Datums

Conversion Factors

Multiply By To obtain
centimeter (cm) 0.3937 inch (in.)
cubic meter (m3) 1.308 cubic yard (yd3)
cubic meter per second (m3/s) 70.07 acre-foot per day (acre-ft/d)
cubic meter per second (m3/s) 35.31 cubic foot per second (ft3/s)
cubic meter per second (m3/s) 22.83 million gallons per day (Mgal/d)
gram (g) 0.03527 ounce, avoirdupois (oz)
joule (J) 0.0000002 kilowatthour (kWh)
kilogram (kg) 2.205 pound avoirdupois (lb)
kilogram per cubic meter (kg/m3) 0.06242 pound per cubic foot (lb/ft3)
kilometer (km) 0.6214 mile (mi)
liter (L) 1.057 quart (qt)
meter (m) 3.2808 feet (ft)
millibar (mb) 0.02953 inches of mercury at 0°C
square kilometer (km2) 0.3861 square mile (mi2)
square meter (m2) 10.76 square foot (ft2)

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

°F=(1.8×°C)+32.

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

°C=(°F–32)/1.8.

Concentrations of chemical constituents in water are reported in milligrams per liter (mg/L).

Datums

Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). ”Elevation,” 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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