73064 Data Set Published / External 55360 Automatic Identification System (AIS) Project Completed 2025-02-25 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 waters in real-time. In the U.S. the Coast Guard and industry collect AIS data, which can also be used for a variety of coastal management purposes. NOAA and BOEM have worked jointly to make available these data from the U.S. Coast Guards national network of AIS receivers. The original records were filtered to a one-minute frequency rate, and subset to depict the location and description of vessels broadcasting within the Exclusive Economic Zone. 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. Bureau Code: 006:48, Program Code: 006:055 Theme ISO 19115 Topic Category oceans Theme ISO 19115 Topic Category planningCadastre Theme ISO 19115 Topic Category transportation Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA Theme coastal Theme planning Theme renewable energy Spatial Exclusive Economic Zone Spatial Outer Continental Shelf Spatial Territorial Sea Office for Coastal Management Charleston SC Data Set None Planned Map (digital) MMIS, BaseDateTime, LAT, LON, SOG, COG, Heading, VesselName, IMO, CallSign, VesselType, Status, Length, Width, Draft, Cargo, TransceiverClass (see more here: https://coast.noaa.gov/data/marinecadastre/ais/data-dictionary.pdf) https://www.marinecadastre.gov/about/disclaimer.html U.S. Coast Guard Navigation Center, Bureau of Ocean Energy Management, NOAA Office for Coastal Management Point of Contact 2024-07-24 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Ground Condition 141 -60 51.5 11 Range 2024-01-01 2024-12-31 No Yes No No No Geometry Only No No No Yes No No Geographic 2D EPSG:4326 WGS 84 World Geodetic System 1984 WGS 84 6378137 298.257223563 1 Geodetic Lattitude Lat degree north 2 Geodetic Longitude Lon degree east Unclassified None For coastal and ocean planning https://marinecadastre.gov/ais/ Marine Cadastre Vessel Traffic (AIS) https://noaaocm.blob.core.windows.net/ais/csv2/csv2024/index.html Compiled to meet 10 meters horizontal accuracy at 95% confidence level Presence and absence of a record is dependent on the: a) Fixed and unpublished location and height of the receiving antenna relative to the dynamic position, antenna height and wattage of the transmitting vessel, b) Interference of the radio frequency transmission between the vessel and the receiving antenna, and the c) Interference in the collection of the record originating from the vessel a) Visual analysis of daily record byte count over a year long period b) Verbal and email communications with U.S. Coast Guard Navigation Center personnel Records were received from all U.S. Coast Guard NAIS terrestrial receivers. All data records for Alaska, including those collected by NAIS receivers, have been filtered out of our data products, at the request of the Alaska Marine Data Exchange (MXAK), who own a vast majority of the receiving stations across the state of Alaska. These data are logically consistent The Marine Cadastre project has ended its use of the U.S. Coast Guard's 2018 Authoritative Vessel Identification System (AVIS) database to overwrite vessel attributes in AIS data distributed to the public. Beginning in 2024 the AIS Vessel Identification Database (AVID) is now used to validate and, in some cases, overwrite vessel attributes that are either null or clearly incorrect in their structure or content. These changes have resulted in an improvement to over 10 percent of the total records. The AVID was compiled in late 2023 using over 20 unlicensed and carefully vetted data sources. Nationwide Automatic Identification System Organization U.S. Coast Guard Navigation Center Originator 2024-01-01 Range 2024-01-01 2024-12-31 https://www.navcen.uscg.gov/ Daily compressed log files containing original AIS messages in NMEA format for the months of January through December for the United States. AIS Vessel Identification Database (AVID). 1 Filter the raw NMEA data to a one-minute sample rate and select a subset of fields using Marine Cadastre NMEA to SQL Server processing tools Load filtered records to a SQL Server database using Marine Cadastre NMEA to SQL Server processing tools Conduct quality and completeness check using logging results from the filter and loading process, and database record counts Update the IMO, CallSign, VesselName, Length, Width, and VesselType from the AIS Vessel Identification Database (AVID) Added or updated the vessel type code field to each record fragment from AVID, if missing from AIS feed or where AVID was deemed more accurate Export records from the SQL Server database to CSV files organized by day of the year using Marine Cadastre Filter and Export utilities Modify the format of the date and time values to a UTC string format during export Modify the format of the IMO vessel number to include the "IMO" prefix during export Trim white space from string attributes during export Replaced comma punctuation marks with a semi-colon in the vessel name or call sign field if present to improve CSV formatting during export Include a header record with descriptive text for each field during export Write extracted AIS data to an ASCII CSV format file using Marine Cadastre Filter and Export utilities Compress each ASCII CSV file 2025-02-01T00:00:00 Nationwide Automatic Identification System gov.noaa.nmfs.inport:73064 Jesse Brass 2024-07-09T19:38:30 Jesse Brass 2026-05-12T14:25:40 2024-07-25 Office for Coastal Management OCM 1002 Public No No 2024-07-25 1 Year 2025-07-25