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    • Commercial Vessel Density October 2009-2010 AIS National

    Metadata Updated: October 31, 2024

    These data were generated to provide insight into traffic patterns on a macro scale so they could be analyzed across the coastal waters of the Continental United States. For this dataset, a transit is counted for every unique vessel intersecting a 1 kilometer square grid cell each day. This data represents the total number of vessel transits from October 2009 - October 2010. There were some grid cells which were unable to be processed, but it is not perceived that this interferes with the integrity of these data.

    Please note multiple connection errors occurred during the time frame of this study. In most cases, data gaps were filled by making subsequent requests to the Coast Guard or other groups receiving the same data feed. However, due to resource constraints, uninterrupted coverage was not obtained. Overall data outages were minimal, on the order of less than a day per month. Because outages were random and affect all areas uniformly, they do not have a significant effect on the integrity of the data. As stated on the USCG NAIS website, AIS data are not representative of all vessel traffic and USCG NAIS receivers do not fully cover the entire extent of this study area. Please take time to understand both of these limitations.

    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 21, 2024
    Metadata Created Date October 31, 2024
    Metadata Updated Date October 31, 2024
    Reference Date(s) 2012-09 (publication)
    Frequency Of Update notPlanned

    Metadata Source

    Harvested from NOS OCM

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date August 21, 2024
    Metadata Created Date October 31, 2024
    Metadata Updated Date October 31, 2024
    Reference Date(s) 2012-09 (publication)
    Responsible Party NOAA Office for Coastal Management (Point of Contact, Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:48862
    Access Constraints Cite As: Office for Coastal Management, [Date of Access]: Commercial Vessel Density October 2009-2010 AIS National [Data Date Range], https://www.fisheries.noaa.gov/inport/item/48862., Access Constraints: None, Use Constraints: These data are intended for coastal and ocean use planning. Not for navigation., Distribution Liability: These data are intended for coastal and ocean use planning. Not for navigation.
    Bbox East Long -65.565865
    Bbox North Lat 49.228432
    Bbox South Lat 22.65559
    Bbox West Long -126.142653
    Coupled Resource
    Frequency Of Update notPlanned
    Harvest Object Id 8c1b323d-99c6-47a6-a5b4-7d3e1b1051be
    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": [[[-126.142653, 22.65559], [-65.565865, 22.65559], [-65.565865, 49.228432], [-126.142653, 49.228432], [-126.142653, 22.65559]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True

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