gov.noaa.nmfs.inport:66448 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 16N2008-11-12publicationEuropean Petroleum Survey Grouphttps://apps.epsg.org/api/v1/CoordRefSystem/6345/export/?format=gmlurn:ogc:def:crs:EPSG:63456.18.3 2021 NOAA Bathymetric Lidar: Sleeping Bear Dunes National Lakeshore, MI mi2021_slp_bear_m9446_metadata 2021 creation 2022 publication NOAA/NMFS/EDM 66448 https://www.fisheries.noaa.gov/inport/item/66448 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/geoid18/9446/supplemental/NOAA_SleepingBear_SurveyReport_r1.pdf WWW:LINK-1.0-http--link Lidar Report Lidar survey report detailing the data acquisition, processing, and quality control information. download https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9449/details/9449 WWW:LINK-1.0-http--link Custom DEM Download Link to custom download, from the Data Access Viewer (DAV), the raster Digital Elevation Model (DEM) data that were created from this lidar data set. download https://coast.noaa.gov/dataviewer/ WWW:LINK-1.0-http--link NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV) The Data Access Viewer (DAV) allows a user to search for and download elevation, imagery, and land cover data for the coastal U.S. and its territories. The data, hosted by the NOAA Office for Coastal Management, can be customized and requested for free download through a checkout interface. An email provides a link to the customized data, while the original data set is available through a link within the viewer. download Woolpert, Inc. was contracted to acquire and process high-resolution topo-bathy lidar to support mapping and modeling needs at the Sleeping Bear Dunes National Lakeshore (SLBE), which will be used for the creation of new benthic mapping products using the Coastal and Marine Ecological Classification Standard (CMECS). Woolpert sub-contracted NV5 to acquire the lidar data using their HawkEye 4X topo-bathy lidar sensor, to provide high density topo lidar with an ANPS of greater than or equal to 1 pulse per square meter with a vertical accuracy of less than or equal to a 15 cm RMSE for the bathymetric lidar. Woolpert also collected topographic ground control and check points covering some extended survey lines. This dataset is the classified lidar point cloud in LAS v. 1.4 format. collected on August 31 and September 3, 2021 using a Leica HawkEye4X sensor. Classifications are as follows: 1 - Unclassified, 2 - Ground, W7 - Low Point (Noise), 9 - Water Surface Topo, W18 - High Noise, 40 - Bathymetric Point, 41 - Water Surface Bathy, S42 - Derived Water Surface, 43 - Submerged Object, W45 - No Bottom Found At In addition to these lidar point data, the bare earth Digital Elevation Models (DEM) created from the lidar point data are also available. These data are available for custom download at the link provided in the URL section of this metadata record. 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. This project has two primary goals to fill critical gaps in our understanding of benthic habitat within Lake Michigan at Sleeping Bear Dunes National Lakeshore (SLBE). The first goal is the collection of new bathymetric lidar to support multiple agencies including the National Park Service, Michigan Department of Natural Resources, NOAA, and other region partners mapping and modeling needs by expanding existing high resolution bathymetry coverage around SLBE. The second goal is to use this bathymetry in the creation of new benthic mapping products using the Coastal and Marine Ecological Classification Standard (CMECS). NOAA Office for Coastal Management (OCM) 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 2026-05-19 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 pointOfContact 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 https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9446/supplemental/mi2021_slp_bear_m9446.kmz This graphic displays the footprint for this lidar data set. KML EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY > COASTAL BATHYMETRY EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION theme Global Change Master Directory (GCMD) Science Keywords 23.3 CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MICHIGAN VERTICAL LOCATION > LAND SURFACE VERTICAL LOCATION > SEA FLOOR place Global Change Master Directory (GCMD) Location Keywords 23.3 Airplane > Airplane platform Global Change Master Directory (GCMD) Platform Keywords 23.3 beach erosion theme 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 2026-05-19 from the NOAA system. Cite As: Office for Coastal Management, [Date of Access]: 2021 NOAA Bathymetric Lidar: Sleeping Bear Dunes National Lakeshore, MI [Data Date Range], https://www.fisheries.noaa.gov/inport/item/66448. 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 2026-05-19 from the NOAA system. Access Constraints: None otherRestrictions This data set was compiled dynamically. It will be removed 10 days after 2026-05-19 from the NOAA system. 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. otherRestrictions This data set was compiled dynamically. It will be removed 10 days after 2026-05-19 from the NOAA system. 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. unclassified 2021 NOAA Bathymetric Lidar DEM: Sleeping Bear Dunes National Lakeshore, MI NOAA/NMFS/EDM 66544 crossReference vector eng; US elevation -86.179879 -85.75604 44.941411 45.061938 | Currentness: Ground Condition 2021-08-31 2021-09-03 Zip Zip LAS/LAZ - LASer 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 distributor https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9446/details/9446 WWW:LINK-1.0-http--link Customized Download Create custom data files by choosing data area, product type, map projection, file format, datum, etc. A new metadata will be produced to reflect your request using this record as a base. Change to an orthometric vertical datum is one of the many options. download https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9446/index.html WWW:LINK-1.0-http--link Bulk Download Bulk download of data files in LAZ format, geographic coordinates, orthometric heights. Note that the vertical datum (hence elevations) of the files here are different than described in this document. They will be in an orthometric datum. download dataset Vertical Positional Accuracy Absolute vertical accuracy for the lidar points was calculated using the check points. All check points were located on flat surfaces with no vegetation underneath the daily QC line. No check points were used to adjust the lidar data. This dataset was tested to meet 0.032 m RMSEz, equating to 0.063 meters at a 95% confidence interval. The NOAA Office for Coastal Management (OCM) received the bathymetric lidar data from Woolpert, Inc. for the Sleeping Bear Dunes National Lakeshore project area. All lidar data were acquired using a Leica HawkEye4X topographic and bathymetric lidar system. The main sensor head, which contains the topographic laser, shallow bathymetric laser and RCD30 camera, was mounted in a Leica PAV100 gyro-stabilized mount integrated with a NovAtel SPAN GNSS and LCI-100C IMU. The deep channel bathymetric sensor head was installed using a separate fixed mount, with its own LCI-100C IMU. Real time navigation and GNSS/IMU data logging was provided by Leica FlightPro software. Lidar data were logged on the Airborne Hydrography, AB (AHAB) operator console. The HE4X provided 300 kHz topographic data, 140 kHz shallow bathymetric data and 40 kHz deep bathymetric data. 4-band 80 MP digital camera imagery was also collected simultaneously with the sensor's RCD-30 camera to assist with editing. Trajectory data were post-processed using NovAtel Inertial Explorer software to provide a tightly coupled precise point position (PPP) and orientation solution. Lidar data were processed in Leica's Lidar Survey Studio (LSS) using calibration data and final processed trajectory information to create an accurately georeferenced lidar point cloud for the entire survey in LAS v1.4 format. All points from the topographic and bathymetric laser include 16-bit intensity values. LAS files from LSS were imported to a Terrascan project where spatial algorithms were used to remove noise and classify bare earth/ground. Manual review was conducted in Terrascan prior to product creation. Woolpert used proprietary in-house scripts to compute project specific correction parameters and normalize the raw bathymetric intensity data for depth. This provides intensities that more closely represent the reflectance of the actual seabed. Corrected values are included in the provided LAS files. During lidar processing any line to line vertical mismatches are removed. Due to the lack of ground control in the survey area, a lidar QC flightline was acquired over the same area for every flight. This line covered ground control on land, out to full bathymetric depth. This line was used to test for accuracy. Interswath or overlap consistency for the topographic laser was assessed in all areas of overlap with slopes of less than 10 degrees. The topographic RMSDz for the project lines is 0.022 m. Interswath or overlap consistency for the bathymetric laser was assessed in all areas of overlap with slopes of less than 10 degrees. The bathymetric RMSDz for the project lines is 0.064 m. All data are provided in NAD83(2011) Epoch 2010.0. All units in meters. All lidar data was transformed to the NAVD88 vertical datum using GEOID18. Delivered LAS Classes include: 1-Unclassified, 2-Ground, W7-Low Point(Noise), 9-Water Surface Topo, W18-High Noise, 40-Bathymetric Point, 41-Water Surface Bathy, S42-Derived Water Surface, 43-Submerged Object, W45-No Bottom Found At. One charted wreck was found during data editing. The approximate location of this wreck is 45 degrees 02'21.6"N, 85 degrees 59'6.5"W and is captured in the anomalies shapefile included with the project deliverables. The NOAA Office for Coastal Management (OCM) received 631 LAS files from Woolpert. The files contained lidar elevation and intensity measurements. The data were in UTM Zone 16N NAD83(2011), meters coordinates and NAVD88 (Geoid18) elevations in meters. OCM performed the following processing on the data for Digital Coast storage and provisioning purposes: 1. Converted from UTM Zone 16N NAD83(2011), meters coordinates to geographic coordinates 2. Converted from NAVD88 elevations to ellipsoid elevations using the Geoid18 model 3. Sorted by gps time 4. Compressed the data using laszip 2022-01-21T00:00:00 Office for Coastal Management processor Collected Bathymetric Lidar Data NV5 originator Processed Bathymetric Lidar Data Woolpert originator The dataset has been mosaiced, reprojected, and clipped as needed from the original input files using PDAL and GDAL commands. 2026-05-19NOAA Office for Coastal Managementcoastal.info@noaa.govprocessor