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Open-File Report 2016–1168


High-Resolution Geophysical Data From the Inner Continental Shelf: South of Martha’s Vineyard and North of Nantucket, Massachusetts


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Conversion Factors, Datums, and Supplemental Information

Conversion Factors

International System of Units to U.S. customary units

Multiply

By

To obtain

Length

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)

247.1

acre

square kilometer (km2)

0.3861

square mile (mi2)

 

Datum

Vertical coordinate information is referenced to mean lower low water (MLLW).

Horizontal coordinate information is referenced to the World Geodetic System of 1984 (WGS 84).

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