2 datasets found

Formats: Esri REST Tags: tow

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  • 2011 Tug Towing Vessel Density

    Automatic Identification Systems (AIS) are a navigation safety device that transmits and monitors the location and characteristics of many vessels in U.S. and international...
  • 2013 Tug and Towing Vessel Density

    Automatic Identification Systems (AIS) are a navigation safety device that transmits and monitors the location and characteristics of many vessels in U.S. and international...
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