These files contain topographic lidar and bathymetric data classified as ground (2), unclassified (1), and NOAA OCM bathymetry (11) in accordance with the American Society for Photogrammetry and Remote Sensing (ASPRS) classification standards. Rejected or invalid data is classified as noise (7). These data were collected by a HawkEye II (HEII) lidar sensor. The HEII integrates topographic and bathymetric lidar sensors, and a digital camera on a single remote sensing platform for use in coastal mapping and charting activities. Native lidar data is not generally in a format accessible to most Geographical Information Systems (GIS). Specialized in-house and commercial software packages are used to process the native lidar data into 3D positions that can be imported into GIS software for visualization and further analysis. Horizontal positions, provided in decimal degrees of latitude and longitude, are referenced to the North American Datum of 1983 (NAD83). For the topographic data, vertical positions were acquired to the NAD83 ellipsoid. The National Geodetic Survey's (NGS) GEOID09 model was used to transform the vertical positions from ellipsoid to orthometric heights referenced to the North American Vertical Datum of 1988 (NAVD88). The bathymetry files for this data set were received by NOAA OCM after the initial topographic files. The bathymetry files were added to the existing topographic data set. The bathymetry files were received in csv format and in geographic coordinates, referenced to the North American Datum of 1983 (NAD83). They were in ellipsoid heights, in meters. For data storage and Digital Coast provisioning, the NOAA OCM converted the topographic files to ellipsoid heights and the bathymetry files to las format. The bathymetry files were also classified as 11 (NOAA OCM bathymetry). The 3D position data are sub-divided into a series of files each covering approximately 5 kilometers of shoreline. 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. Original contact information: Contact Org: JALBTCX Title: Data Production Manager Phone: 228-252-1121 Email: JALBTCX@usace.army.mil This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data.