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    • 2018-2019 NOAA NGS Topobathy Lidar: Trappe to Toddville, MD

    Metadata Updated: March 15, 2024

    The NOAA Chesapeake Bay MD1804 Option 1 East 4 Topobathymetric lidar data were collected by NV5 Geospatial (NV5) using Riegl VQ-880-G, VQ-880-GII, and VQ-880-GH systems. The Chesapeake Bay MD1804 Option 1 East 4 acquisition spanned from 20181107-20190417 in 14 missions. The Chesapeake Bay MD1804 Option 1 East 4 dataset includes Topobathymetric data in LAS format 1.4, point data record format 6, with the following classifications in accordance with project specifications and the American Society for Photogrammetry and Remote Sensing (ASPRS) classification standards: 1 - unclassified 2 - ground 7 - noise 40 - bathymetric bottom or submerged topography 43 - submerged feature 45 - water column 46 - overlap bathymetric bottom 71 - adjacent lift unclassified 72 - adjacent lift ground 85 - adjacent lift water column 1 Overlap - edge clip This data set also includes lidar intensity values, number of returns, return number, time, and scan angle. The 100 meter buffered NOAA Chesapeake Bay MD1804 Option 1 East 4 project area covers approximately 563.829 square kilometers of an area encompassing a portion of the Chesapeake Bay and the nearby census designated places of Taylors Island, Cambridge, Madison, Woolford, and Algonquin, Maryland. LAS files were compiled in 500 m x 500 m tiles. The NOAA Chesapeake Bay MD1804 Option 1 East 4 dataset is comprised of 2,909 - 500 m x 500 m LAS tiles.

    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 February 29, 2024
    Metadata Created Date May 28, 2021
    Metadata Updated Date March 15, 2024
    Reference Date(s) 2021 (publication)
    Frequency Of Update notPlanned

    Metadata Source

    Harvested from NOS NGS

    Other Data Resources

    Graphic Preview

    This graphic displays the footprint for this lidar data set.

    Additional Metadata

    Resource Type Dataset
    Metadata Date February 29, 2024
    Metadata Created Date May 28, 2021
    Metadata Updated Date March 15, 2024
    Reference Date(s) 2021 (publication)
    Responsible Party NOAA Office for Coastal Management (Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:64564
    Access Constraints Cite As: National Geodetic Survey, [Date of Access]: 2018-2019 NOAA NGS Topobathy Lidar: Trappe to Toddville, MD [Data Date Range], https://www.fisheries.noaa.gov/inport/item/64564., 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 Office for Coastal Management or its partners
    Bbox East Long -76.023552
    Bbox North Lat 38.668565
    Bbox South Lat 38.295295
    Bbox West Long -76.402284
    Coupled Resource
    Frequency Of Update notPlanned
    Graphic Preview Description This graphic displays the footprint for this lidar data set.
    Graphic Preview File https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9298/supplemental/extent_ngs_topobath_trappeMD_m9298.kmz
    Graphic Preview Type KML
    Harvest Object Id a0544276-4043-4256-9580-a9ff5f093e22
    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": [[[-76.402284, 38.295295], [-76.023552, 38.295295], [-76.023552, 38.668565], [-76.402284, 38.668565], [-76.402284, 38.295295]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System EPSG::6319
    Spatial Harvester True
    Temporal Extent Begin 2018-11-07
    Temporal Extent End 2019-04-17

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