2023 NOAA Topobathy Lidar: Northern Lake Michigan & Northern Lake Huron, MI

Description

Product: This topobathy lidar dataset consists of processed classified LAS 1.4 files used to create intensity images and topobathymetric DEMs as necessary.
Three project areas for this dataset are:
1. Lansing Shoals - 4273 individual 500 m x 500 m tiles
2. Green Bay - 1837 individual 500 m x 500 m tiles
3. Lake Huron - 2871 individual 500 m x 500 m tiles

Geographic Extent: The Michigan coastline along parts of northern Lake Michigan and northern Lake Huron, covering approximately 627 square miles.
1. Lansing Shoals portion (Lake Michigan) of the AOI covers approximately 311 square miles
2. Green Bay portion (Lake Michigan) of the AOI covers approximately 116 square miles
3, Lake Huron portion of the AOI covers approximately 200 square miles

Dataset Description: The Great Lakes Topobathymetric Lidar project called for the planning, acquisition, processing and derivative products of lidar data to be collected at a nominal pulse spacing (NPS) of 1 meter for bathymetric areas. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base Lidar Specification, Version 1.3. The data was developed based on a horizontal projection/datum of NAD83 (2011), UTM zones 16N and 17N, meters and vertical datum of NAVD88 (Geoid 18), meters.

Ground Conditions:
1. Lansing Shoals - Lidar was collected for the Lansing Shoals region from September 14, 2023 to September 25, 2023, while no snow was on the ground and rivers were at or below normal levels

  1. Green Bay - Lidar was collected for the Green Bay region from September 28, 2023 to October 5, 2023, while no snow was on the ground and rivers were at or below normal levels.

3, Lake Huron - Lidar was collected for the Northern Lake Huron region from September 16, 2023 to October 4, 2023, while no snow was on the ground and rivers were at or below normal levels.

Resources

Name Format Description Link
NOAA Office for Coastal Management Website Unknown NOAA Office for Coastal Management Home Page Open resource
NOAA Office for Coastal Management Website Unknown NOAA Office for Coastal Management Home Page Open resource
NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV) Unknown 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. Open resource
Customized Download Unknown 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. Open resource
3D Viewer (Potree NOAA) JSON Link to view the point cloud, using the Entwine Point Tile (EPT) format, in the 3D Potree viewer. Open resource
GCMD Keyword Forum Page Unknown Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords Open resource
Entwine Point Tile (EPT) JSON Entwine Point Tile (EPT) is a simple and flexible octree-based storage format for point cloud data. The data is organized in such a way that the data can be reasonably streamed over the internet, pulling only the points you need. EPT files can be queried to return a subset of the points that give you a representation of the area. As you zoom further in, you are requesting higher and higher densities. A dataset in EPT will contain a lot of files, however, the ept.json file describes all the rest. The EPT file can be used in Potree and QGIS to view the point cloud. Open resource
Bulk Download HTML 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. Open resource
Lidar Report PDF Link to the project lidar report. Open resource
Lidar Footprint KML Link to the dataset footprint. Open resource
Full Metadata Record Unknown View the complete metadata record on InPort for more information about this dataset. Open resource
NOAA Data Management Plan (DMP) PDF NOAA Data Management Plan for this record on InPort. Open resource

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