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    • 2022-2023 NOAA NGS Topobathy Lidar: Coastal Maine

    Metadata Updated: September 19, 2025

    The NOAA Maine Topbathymetric Lidar was collected by NV5 using Leica Chiroptera Hawkeye 4X systems. The lidar acquisitions were flown between 20221006 and 20231216 in 120 missions. The dataset includes topobathymetric data in a LAS format 1.4, point data record format 6. See the 'Lineage' section for detailed classification scheme.

    This dataset also includes lidar intensity values, number of returns, return number, time, and scan angle.

    After the initial data submission, NOAA reviewed the data. NV5 corrected the feedback edits and incorporated them into the dataset delivery. Additionally, green laser intensity values were normalized for depth for the dataset resulting in a full redelivery of all LAS files.

    Finally, a set of normalized intensity rasters was also provided, and can be found at the Bulk Download link.

    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 11, 2025
    Metadata Created Date September 19, 2025
    Metadata Updated Date September 19, 2025
    Reference Date(s) 2025 (creation), (publication)
    Frequency Of Update notPlanned

    Metadata Source

    Harvested from NOS NGS

    Other Data Resources

    Graphic Preview

    This graphic shows the lidar footprint for this dataset.

    Additional Metadata

    Resource Type Dataset
    Metadata Date September 11, 2025
    Metadata Created Date September 19, 2025
    Metadata Updated Date September 19, 2025
    Reference Date(s) 2025 (creation), (publication)
    Responsible Party NOAA Office for Coastal Management (Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:77189
    Access Constraints Cite As: National Geodetic Survey, [Date of Access]: 2022-2023 NOAA NGS Topobathy Lidar: Coastal Maine [Data Date Range], https://www.fisheries.noaa.gov/inport/item/77189., Access Constraints: None, Use Constraints: Users should be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations., Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the National Geodetic Survey, the Office for Coastal Management, or its partners.
    Bbox East Long -66.9
    Bbox North Lat 45.17
    Bbox South Lat 44.68
    Bbox West Long -67.26
    Coupled Resource
    Frequency Of Update notPlanned
    Graphic Preview Description This graphic shows the lidar footprint for this dataset.
    Graphic Preview File https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/10225/supplemental/extent_ngs_bethany_2022_m10225.kmz
    Graphic Preview Type kmz
    Harvest Object Id 3b04986c-4413-4304-b663-8c6f600ed807
    Harvest Source Id ea6e63e6-96bb-4fb1-a72f-b7af08062c83
    Harvest Source Title NOS NGS
    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": [[[-67.26, 44.68], [-66.9, 44.68], [-66.9, 45.17], [-67.26, 45.17], [-67.26, 44.68]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System EPSG::6319
    Spatial Harvester True
    Temporal Extent Begin 2022-10-08
    Temporal Extent End 2022-10-23

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