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U.S. Geological Survey Open-File Report 2013–1060

Sea-Floor Geology and Topography Offshore in Northeastern Long Island Sound

Conversion Factors

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SI to Inch/Pound

Multiply By To obtain
millimeter (mm) 0.03937 inch (in.)
centimeter (cm) 0.3937 inch (in.)
meter (m) 3.281 feet (ft)
meter (m) 1.094 yard (yd)
kilometer (km) 0.6214 mile (mi)
kilometer (km) 0.5400 mile, nautical (nmi)
square meter (m²) 4,047 acre
square kilometer (km²) 247.1 acre
cubic meter (m³) 1.308 cubic yard (yd³)
Flow rate
centimeter per second (cm/s) 0.3937 inch per second (in/s)
meter per second (m/s) 3.281 foot per second (ft/s)
cubic meter per second (m³/s) 35.31 cubic foot per second (ft³/s)

The frequency of multibeam bathymetry is measured in kilohertz (kHz), one thousand periods per second.

Horizontal coordinate information projected in Universal Transverse Mercator (UTM) Zone 18 is referenced to the North American Datum of 1983 (NAD 83); horizontal information in geographic coordinates is referenced to the World Geodetic System 1984 (WGS 84). The vertical datum for tidal-zone measurements is mean lower low water (MLLW).


CT DEEP - Connecticut Department of Energy and Environmental Protection

DGPS - differential global positioning system

DTM - digital terrane model

GIS - geographic information system

kyBP - thousands of years before present

MBES - multibeam echosounder

mg - milligram

NOAA - National Oceanic and Atmospheric Administration

OSV - ocean survey vessel

R/V - research vessel

SEABOSS - Seabed Observation and Sampling System

USGS - U.S. Geological Survey

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Page Last Modified: Friday, September 27, 2013, 08:44:26 AM