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U.S. Geological Survey Open-File Report 2009-1001

Geological Interpretation of the Sea Floor Offshore of Edgartown, Massachusetts

Conversion Factors

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SI to Inch/Pound

Multiply By To obtain
centimeter (cm) 0.3937 inch (in.)
millimeter (mm) 0.03937 inch (in.)
meter (m) 3.281 foot (ft)
kilometer (km) 0.6214 mile (mi)
kilometer (km) 0.5400 mile, nautical (nmi)
meter (m) 1.094 yard (yd)
square kilometer (km²) 0.3861 square mile (mi²)
joule (J) 0.0000002 kilowatthour (kwh)


Phi-notation (Krumbein, 1934) as used in this report is defined as: Φ = -log2 (d), where d is the grain diameter in mm. Phi-class intervals in millimeters are given in the data dictionary of the Sediments section.

Nautical speeds are measured in knots (kts). 1 knot = 0.514 m/s.

The frequencies of sidescan sonar, single, and multiple beams are measured in kilohertz (kHz) and hertz (Hz).

The vertical datum for tidal-zone measurements is mean lower low water.

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