USGS OFR 2010-1005: Surficial Geology of the Sea Floor in Long Island Sound Offshore of Plum Island, New York, Conversion Factors

U.S. Geological Survey Open-File Report 2010–1005

Surficial Geology of the Sea Floor in Long Island Sound Offshore of Plum Island, New York

Conversion Factors

SI to Inch/Pound

Multiply	By	To obtain
Length
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)
Area
square kilometer (km²)	0.3861	square mile (mi²)

Phi-notation (Krumbein, 1934) as used in this report is defined as: Φ = -log 2 (d), where d is the grain diameter in mm. Phi-class intervals in millimeters are given in the data dictionary of the Sediments section.

The frequencies of sidescan sonar and multibeam bathymetry are measured in kilohertz (kHz), one thousand periods per second.

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

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