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    • AIS Base Stations

    Metadata Updated: February 15, 2025

    A shore-based station that provides identity, time synchronization, and text messages, which report (message 4) every ten seconds and are identified by a 00MIDxxxxx MMSI. These stations can also transmit AIS ATON Reports (message 21) and Application Specific Messages (ASM, message 6 and message 8) for meteorological or hydrological information, marine safety information, etc. (see the IALA Application Specific Message Collection). The Coast Guard Light List maintains a list of U.S. stations that also act as AIS ATONs or transmit ASMs.

    In the United States, these stations are solely operated by the U.S. Coast Guard (USCG) in the Nationwide Automatic Identification System, a nationwide network that supports all USCG missions and is designed to enhance the Coast Guards maritime domain awareness of vessels operating in or approaching the nations waterways, ports, and infrastructure. This network, which comprises 130-plus base stations and 150-plus USACE inland stations, collects over 120 million AIS messages daily and shares information with other government agencies, industry, academia, and coastal planners.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date August 5, 2024
    Metadata Created Date February 15, 2025
    Metadata Updated Date February 15, 2025
    Reference Date(s) August 1, 2024 (publication)
    Frequency Of Update notPlanned

    Metadata Source

    Harvested from NOS OCM

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date August 5, 2024
    Metadata Created Date February 15, 2025
    Metadata Updated Date February 15, 2025
    Reference Date(s) August 1, 2024 (publication)
    Responsible Party NOAA Office for Coastal Management (Point of Contact)
    Contact Email
    Guid gov.noaa.nmfs.inport:73206
    Access Constraints Cite As: Office for Coastal Management, [Date of Access]: AIS Base Stations [Data Date Range], https://www.fisheries.noaa.gov/inport/item/73206., Use Constraints: For coastal and ocean planning, Distribution Liability: https://www.marinecadastre.gov/about/disclaimer.html
    Bbox East Long 144.75
    Bbox North Lat 61.5
    Bbox South Lat 13.25
    Bbox West Long -158.25
    Coupled Resource
    Frequency Of Update notPlanned
    Harvest Object Id 416bb514-7d00-4799-a12e-0d67f4d9e8c3
    Harvest Source Id c0121fd9-df15-4168-ac04-42f6e36a794d
    Harvest Source Title NOS OCM
    Licence 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.
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-158.25, 13.25], [144.75, 13.25], [144.75, 61.5], [-158.25, 61.5], [-158.25, 13.25]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System EPSG::4269
    Spatial Harvester True

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