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Open-File Report 2013-1020

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High-Resolution Geophysical Data Collected Aboard the U.S. Geological Survey Research Vessel Rafael to Supplement Existing Datasets From Buzzards Bay and Vineyard Sound, 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)

Area
square meter (m2) 10.76

square foot (ft2)

square kilometers (km²)

0.386102159

square miles (mi²)
Speed
meter per second (m/s) 3.281 foot per second (ft/s)
Energy
joule (J) 0.0000002 kilowatthour (kWh)

The frequency of swathy bathymetry is measured in kilohertz (kHz), 1,000 periods per second.

Vertical coordinate information is referenced to mean lower low water (MLLW) [the average of the lower low water height of each tidal day observed over the national tidal datum epoch].

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

 

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