gov.noaa.nmfs.inport:64644 eng UTF8 dataset Elevation Office for Coastal Management resourceProvider NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact 2026-04-30T00:00:00 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) NAD83(2011) / UTM zone 17N2008-11-12publicationEuropean Petroleum Survey Grouphttps://apps.epsg.org/api/v1/CoordRefSystem/6346/export/?format=gmlurn:ogc:def:crs:EPSG:63466.18.3 2020 GLOS Underwater Lidar: Lake Huron, MI 2020 underwater lidar m9302 2020-11-18 creation publication NOAA/NMFS/EDM 64644 https://www.fisheries.noaa.gov/inport/item/64644 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9302/supplemental/RH20-018-GLOS-Laser_trials_summary.pdf WWW:LINK-1.0-http--link Contractor Project Report Project report from ASI Group. This metadata was based on the information in the report. download Elevations were collected using an underwater laser scanner (lidar) in Lake Huron, MI from November 16 to 18, 2020. Data were geospatially adjusted to match a multibeam survey conducted at the same time. Positional accuracy was not accessed. Data represent the best estimate of the bottom surface. This data set contains point cloud data(' in LAZ (compressed LAS) format', ''). The data may have been reprojected or otherwise modified from the original data in an automated process. Disregard projection information in this abstract and refer to the spatial reference section. Utilize remote inspection technologies and laser technologies to collect high resolution point cloud data at potential features of interest as identified in the multi-beam survey. Great Lakes Observing System; ASI Marine The custom download may be cited as National Oceanic and Atmospheric Administration (NOAA) Digital Coast Data Access Viewer. Charleston, SC: NOAA Office for Coastal Management. Accessed 2026-05-11 at https://coast.noaa.gov/dataviewer. completed NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information custodian notPlanned https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9302/supplemental/2020_huron_underwater_lidar_m9302.kmz Polygon showing the area of data. kmz CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > GREAT LAKES VERTICAL LOCATION > SEA FLOOR place Global Change Master Directory (GCMD) Location Keywords 23.3 LIDAR > Light Detection and Ranging instrument Global Change Master Directory (GCMD) Instrument Keywords 23.3 DOC/NOAA/NOS/OCM > Office of Coastal Management, National Ocean Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Lidar project InPort otherRestrictions This data set was compiled dynamically. It will be removed 10 days after 2026-05-11 from the NOAA system. Cite As: Office for Coastal Management, [Date of Access]: 2020 GLOS Underwater Lidar: Lake Huron, MI [Data Date Range], https://www.fisheries.noaa.gov/inport/item/64644. 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. otherRestrictions This data set was compiled dynamically. It will be removed 10 days after 2026-05-11 from the NOAA system. Access Constraints: None otherRestrictions This data set was compiled dynamically. It will be removed 10 days after 2026-05-11 from the NOAA system. Use Constraints: None otherRestrictions This data set was compiled dynamically. It will be removed 10 days after 2026-05-11 from the NOAA system. Distribution Liability: None unclassified vector 1 eng; US elevation -82.372932 -82.372336 43.146755 43.1470679999 In Lake Huron. 2020-11-16 2020-11-18 LAS/LAZ - LASer Zip Zip Zip NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information Email coastal.info@noaa.gov distributor https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9302/index.html WWW:LINK-1.0-http--link https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9302/index.html Data in NAVD88 (Geoid18) orthometric heights, geographic coordinates for bulk download. download https://coast.noaa.gov/dataviewer/#/lidar/search/where:id=9302 WWW:LINK-1.0-http--link https://coast.noaa.gov/dataviewer/#/lidar/search/where:id=9302 Custom output created with the Digital Coast Data Access Viewer. Projections, datums, file formats, etc, can be changed. download dataset Accuracy The positional accuracy has not been tested. The lidar were matched to multi-beam data and are expected to have similar accuracy and may match IHO special order. Multiple locations were tried to test the ROV and laser system. The Detroit River, St. Clair River, and Lake Erie shoreline were found to lack the necessary water clarity. Lake Huron was tried in locations identified using navigation charts. A target was located that appeared to be a large cargo shipwreck. The City of Genoa was a grain freighter that sunk in 1911. The basic structure of the wreck remains on the bed of Lake Huron heavily deteriorated. The ROV was launched at the site and successfully collected laser data of the wreck. Ambient light in the water limited the usable range of the laser, so passes were collected over some areas only. 2020-11-18T00:00:00 A review of the data collected during the inspections was completed in the ASI office. The 3D files were converted to point clouds and erroneous noise was removed. The LiDAR files were adjusted in position to best file the sonar data collected of the wreck. The assembly of this report was then completed. The report includes documentation methodology, equipment descriptions, observations, observation images, and 3D dataset. Data files are provided of the various areas survey by MBES in meters located in UTM zone 17 as collected and in elevation referenced to NAVD88 and adjusted using Geoid 2018-CONUS. The laser data is provided in LAS format as collected as well as in cleaned XYZ files that have been best-fit positioned to match the MBES data. 2020-11-18T00:00:00 Data were delivered to the Great Lakes Observing System (GLOS) and subsequently passed to NOAA Digital Coast for distribution. Both the cleaned text files and the raw LAS files were received. The raw LAS files did not have sufficient information to do the geometric corrections that had been done to the cleaned text files and were not further processed. The cleaned text files were converted to LAS/LAZ format using LAStools txt2las. The points are all tagged as class 2 (ground) as it is presumed that the cleaning step removed non-ground/bathymetry. This metadata record was created from the report delivered by ASI Group to GLOS. No other metadata was received. GLOS was consulted regarding any accuracy assessments or contractual spatial accuracy requirements. There were none. The accuracy is assumed to be on par with the multi-beam echo sounder data collected at the same time, but that also does not appear to have an accuracy assessment. 2021-05-20T00:00:00 NOAA Office for Coastal Management (843) 740-1202 coastal.info@noaa.gov processor Data were converted from UTM zone 17 NAD83(2011) orthometric NAVD88 coordinates to NAD83(2011) ellipsoid heights in geographic coordinates. This allows the distribution through the NOAA Digital Coast Data Access Viewer, which may do further coordinate system changes. NOAA Office for Coastal Management (843) 740-1202 coastal.info@noaa.gov processor Source Contribution: Raw laser scan data collected underwater in Lake Huron. Raw data ASI Group originator cleaned data 2020-11-18 publication ASI Group originator The dataset has been mosaiced, reprojected, and clipped as needed from the original input files using PDAL and GDAL commands. 2026-05-11NOAA Office for Coastal Managementcoastal.info@noaa.govprocessor otherRestrictions otherRestrictions This data set was compiled dynamically. It will be removed 10 days after 2026-05-11 from the NOAA system. Access Constraints: None | Use Constraints: None