Scientific Investigations Report 2005-5255

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2005-5255

Ground and Surface Water Interactions and Quality of Discharging Ground Water, Lower Nooksack River Basin, WA

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Conversion Factors and Datums

Conversion Factors

Inch/Pound to SI

Multiply By To obtain
acre 0.4047 hectare
inch (in.) 2.54 centimeter
inch (in.) 25.4 millimeter
inch per year (in/yr) 25.4 millimeter per year
foot (ft) 0.3048 meter
mile (mi) 1.609 kilometer
square mile (mi2) 2.590 square kilometer
cubic foot per second (ft3/s) 0.02832 cubic meter per second
foot per mile (ft/mi) 0.1894 meter per kilometer

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

°F=(1.8×°C)+32.

SI to Inch/Pound

Multiply By To obtain
centimeter (cm) 0.3937 inch
cubic centimeter (cm3) 0.06102 cubic inch
gram (g) 0.03527 ounce, avoirdupois
millimeter (mm) 0.03937 inch
meter (m) 3.281 foot

Datums

Vertical coordinate information is referenced to the North American Vertical Datum of 1988 (NAVD 88).

Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83).

Altitude, as used in this report, refers to distance above the vertical datum.

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For more information about USGS activities in Washington, visit the USGS Washington Water Science Center home page .

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