gov.noaa.nmfs.inport:54207 eng UTF8 dataset Office for Coastal Management resourceProvider NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact 2026-04-30T00:00:00 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) AIS Vessel Tracks 2017 2018-10-31 publication NOAA/NMFS/EDM 54207 https://www.fisheries.noaa.gov/inport/item/54207 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information mapDigital 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. To support ocean planning activities pursuant to the Executive Order Regarding the Ocean Policy to Advance the Economic, Security, and Environmental Interests of the United States, the Energy Policy Act, the Rivers and Harbors Act, and the Coastal Zone Management Act. CREDIT: MarineCadastre.gov, NOAA Office for Coastal Management, Bureau of Ocean Energy Management ORIGINATORS: NOAA Office for Coastal Management, NOAA Office for Coastal Management; completed NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information custodian notPlanned EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL GOVERNANCE/MANAGEMENT theme Global Change Master Directory (GCMD) Science Keywords 23.3 CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA place Global Change Master Directory (GCMD) Location Keywords 23.3 AIS Automatic Identification System coastal zone management environment ocean planning oceans planning planningCadastre position report static data report transportation vessel vessel traffic voyage theme 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 place DOC/NOAA/NOS/OCM > Office of Coastal Management, National Ocean Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Automatic Identification System (AIS) project InPort otherRestrictions Cite As: Office for Coastal Management, [Date of Access]: AIS Vessel Tracks 2017 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/54207. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Use Constraints: NOAA makes no warranties or representations whatsoever regarding the availability, quality, accuracy, content, completeness or suitability for the user's needs of such information. The services, information, and data made available on the Marine Cadastre web site are provided "as is" without warranties of any kind. These data are intended for coastal and ocean use planning. Not for navigation. https://www.marinecadastre.gov/about/disclaimer.html otherRestrictions Distribution Liability: NOAA makes no warranties or representations whatsoever regarding the availability, quality, accuracy, content, completeness or suitability for the user's needs of such information. The services, information, and data made available on the Marine Cadastre web site are provided "as is" without warranties of any kind. These data are intended for coastal and ocean use planning. Not for navigation. https://www.marinecadastre.gov/about/disclaimer.html unclassified eng; US environment oceans planningCadastre transportation -132 -60 10.7 51.5 The native coordinate system for this layer is NAD 1983 (ESPG: 4269). Please note: all MarineCadastre.gov data served by the NOAA Office for Coastal Management and hosted through Esri REST services are in the WGS 1984 Web Mercator Auxiliary Sphere (EPSG: 3857) projection. false eng false GIS File 2017 AIS Vessel Tracks 2019-01-24 publication https://marinecadastre.gov/data WWW:LINK-1.0-http--link https://marinecadastre.gov/data Marine Cadastre Data Registry download https://ocmgeodatastor1.blob.core.windows.net/marinecadastre/ais/aistrack/index-aistrack.html WWW:LINK-1.0-http--link https://ocmgeodatastor1.blob.core.windows.net/marinecadastre/ais/aistrack/index-aistrack.html download dataset Completeness Report All known records acquired from the Nationwide Automatic Identification System which includes approximately 58 U.S. ports and 11 coastal areas out to 24 nautical miles offshore. For further information on vessel reporting requirements and participation in the AIS, see carriage requirements in the Code of Federal Regulations, Title 33. Significant null values exist in some fields principally as a result of vessel operator practices. Conceptual Consistency Content was acquired from original sources – no additional testing was done to cross reference or confirm otherwise the field or geometry values from other sources. All known records acquired from the Nationwide Automatic Identification System which includes approximately 58 U.S. ports and 11 coastal areas out to 24 nautical miles offshore. For further information on vessel reporting requirements and participation in the AIS, see carriage requirements in the Code of Federal Regulations, Title 33. Significant null values exist in some fields principally as a result of vessel operator practices. 1. Filter the raw NMEA data to a one-minute sample rate and select a subset of fields using MarineCadastre.gov NMEA to SQL Server processing tools 2. Load filtered records to an SQL Server 2017 database using MarineCadastre.gov NMEA to SQL Server processing tools 3. Conduct quality and completeness check using logging results from the filter and loading process 4. Update the IMO, CallSign, VesselName, Length, Width, VesselType, and Draft from United States Coast Guard AVIS where original AIS values are missing 5. Add a new vessel type code to each record fragment that originated from the United States Coast Guard AVIS 6. Develop track line features directly from the SQL Server database using a customize version of the MarineCadastre.gov Track Builder 3.1 (64-bit version) for each month of broadcast records and for each ocean basin, using a filter setting of 30 minutes and 1 mile 7. Added field for vessel type group and populated based on the vessel type code to vessel group mapping described in attribute metadata 8. Added field for track line duration, and calculated the time in minutes between the start and end time for each track feature 9. Performed visual quality and consistency checks, and removed vessel tracks that were clearly invalid (on land) or beyond the ocean basin 10. REPAIR GEOMETRY to remove features with null geometry 2018-01-15T00:00:00 Source Contribution: Daily compressed log files containing original AIS messages in NMEA format for the months of January through December for the United States. Authoritative Vessel Identification Service (AVIS) Vessel Catalog 2018-01-04. 2017 Nationwide Automatic Identification System 2017-12-31 publication Source Contribution: AIS Vessel Tracks 2017: Filtering of AIS messages in NMEA format to an 1 minute interval and conversion of message to track line features by vessel type and ocean basin. AIS Vessel Tracks 2017 2017-12-31 publication https://marinecadastre.gov/data WWW:LINK-1.0-http--link Source Online Linkage URL where the source data were originally accessed. information