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U.S. Geological Survey Open-File Report 2012-1157

Shallow Geology, Seafloor Texture, and Physiographic Zones of the Inner Continental Shelf from Nahant to Northern Cape Cod Bay, Massachusetts


Conversion Factors and Datum

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SI to Inch/Pound

Multiply

By

To obtain

Length

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)

Velocity

meters per second (m/s)

3.281

foot per second (ft/s)

Area

square kilometers (km²)

0.386102159

square miles (mi²)

Vertical coordinate information is referenced to North American Vertical Datum of 1988 (NAVD 88) or Mean Sea Level (MSL).
Elevation, as used in this report, refers to distance above the vertical datum.

Horizontal coordinate information is referenced to the World Geodetic System of 1984 (WGS84) in a Geographic Coordinate System.

Particle size in phi units may be converted to millimeters (mm) as follows:
mm=2-phi


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