AIS Vessel Tracks 2015 eng Dataset EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL GOVERNANCE/MANAGEMENT environment oceans planningCadastre transportation CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA AIS Automatic Identification System coastal zone management environment ocean planning oceans planning planningCadastre position report static data report transportation vessel vessel traffic voyage Atlantic Ocean East Coast Exclusive Economic Zone Great Lakes Gulf of Mexico Outer Continental Shelf UTM Zone 1 UTM Zone 10 UTM Zone 11 UTM Zone 14 UTM Zone 15 UTM Zone 16 UTM Zone 17 UTM Zone 18 UTM Zone 19 UTM Zone 2 UTM Zone 20 UTM Zone 3 UTM Zone 4 UTM Zone 5 UTM Zone 6 UTM Zone 7 UTM Zone 8 UTM Zone 9 United States West Coast Vessels traveling in U.S. coastal and inland waters frequently use Automatic Identification Systems (AIS) for navigation safety. The U.S. Coast Guard collects AIS records using shore-side antennas. These records have been filtered and converted from a series of points to a set of track lines for each vessel. Vessels can have one or more tracks of any length, and can be separated by gaps due to intermittent loss of the AIS signal. Tracks will not necessarily start or stop at a well defined port, or when a vessel is not in motion. Vessel tracks are an efficient and spatially unbiased indicator of vessel traffic. Office for Coastal Management Office for Coastal Management https://www.fisheries.noaa.gov/inport/item/54117 https://www.fisheries.noaa.gov/inport/item/55360 northlimit=51.5; eastlimit=-60; southlimit=10.7; westlimit=-132; 2018-10-31