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    • CO-OPS Air Gap Observations from Various Bridges within the United States and Its Territories

    Metadata Updated: September 29, 2023

    The Center for Operational Oceanographic Products and Services (CO-OPS) of the National Ocean Service (NOS), an organizational element of NOAA, operates and maintains a network of downward-looking microwave range sensors for determining the instantaneous clearance or air gap below bridges that span navigable waterways in the US. These observations are part of the National Physical Oceanographic Real-Time System (PORTS) Program. The data collected are used to ensure safety of navigation, improve economic efficiency, and protect coastal resources. Included in this data collection are preliminary 6-minute air gap observations from about 18 bridges spanning navigable waterways in the US.

    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 September 22, 2023
    Metadata Created Date November 12, 2020
    Metadata Updated Date September 29, 2023
    Reference Date(s) February 24, 2020 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NGDC Collection

    Other Data Resources

    Graphic Preview

    Map of Bridges Instrumented with CO-OPS Air Gap Sensors

    Additional Metadata

    Resource Type Series
    Metadata Date September 22, 2023
    Metadata Created Date November 12, 2020
    Metadata Updated Date September 29, 2023
    Reference Date(s) February 24, 2020 (publication)
    Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
    Contact Email
    Guid gov.noaa.ncei:CO-OPS_Bridge_Air_Gap_Collection
    Access Constraints Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose., Cite as: Center for Operational Oceanographic Products and Services (CO-OPS). 2020. CO-OPS Air Gap Observations from Various Bridges within the United States and Its Territories. NOAA National Centers for Environmental Information. doi: 10.25921/6tey-xa23. Accessed [date].
    Bbox East Long -74.0448
    Bbox North Lat 40.6419
    Bbox South Lat 29.9384
    Bbox West Long -122.3728
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Map of Bridges Instrumented with CO-OPS Air Gap Sensors
    Graphic Preview File https://www.ngdc.noaa.gov/hazard/img/CO-OPS_air_gap_location_map.png
    Graphic Preview Type PNG
    Harvest Object Id fa867cd9-42dc-471f-95e7-5b31b2d6e3e8
    Harvest Source Id 5088829e-ee94-4daf-8d22-e38f5358f506
    Harvest Source Title NGDC Collection
    Licence Raw data have not been subjected to the National Ocean Service's (NOS) quality control or quality assurance procedures and do not meet the criteria and standards of official NOS data. Users are cautioned to always review these data closely to ensure that they are appropriate for their intended use.
    Lineage
    Metadata Language
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-122.3728, 29.9384], [-74.0448, 29.9384], [-74.0448, 40.6419], [-122.3728, 40.6419], [-122.3728, 29.9384]]]}
    Progress onGoing
    Spatial Data Service Type
    Spatial Reference System urn:ogc:def:crs:EPSG::4326
    Spatial Harvester True
    Temporal Extent Begin 2019-08-04

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