Product: These lidar data are processed Classified LAS 1.4 files, formatted to 4877 individual 1000 m x 1000 m tiles; used to create intensity images, 3D breaklines and hydro-flattened DEMs as necessary. Geographic Extent: AOI is located in the Yukon-Kuskokwim River delta between the communities of Chevak and Newtok in Western Alaska. Additional satellite areas of interest are located neat the communities of Emmonak, Scammon Bay, and Mekoryuk Alaska. The areas of interest covers approximately 1,650 square miles. Dataset Description: AK Yukon-Kuskokwim Lidar 2016 project called for the Planning, Acquisition, processing and derivative products of lidar data to be collected at a nominal pulse spacing (NPS) of 0.7 meter. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base Lidar Specification, Version 1.2. The data was developed based on a horizontal projection/datum of NAD83, Universal Transverse Mercator, meters and vertical datum of NAVD88 (GEOID12B), meters. Lidar data was delivered as flightline-extent unclassified LAS swaths, as processed Classified LAS 1.4 files, formatted to 4877 individual 1000 m x 1000 m tiles as tiled Intensity Imagery, and as tiled bare earth DEMs; all tiled to the same 1000 m x 1000 m schema. Please note that delivery tiles 03VVH800710 and 03VWH110340 do not contain lidar points. The data boundary minimally intersects these tiles and a hydro breakline was digitized and subsequent DEM and Intensities TIFs were generated. There is no LAS 1.4 for tiles 03VVH800710 and 03VWH110340. The DEM IMG/Intensity tiff file count is 4879. The LAS 1.4 count is 4877. Ground Conditions: Lidar was collected in late 2016 by Kodiak Mapping of Palmer Alaska , while no snow was on the ground and rivers were at or below normal levels. In order to post process the lidar data to meet task order specifications and meet ASPRS vertical accuracy guidelines, Kodiak Mapping established a total of 94 ground control points that were used to calibrate the lidar to known ground locations established throughout the project area. An additional 165 independent accuracy checkpoints, 117 in Bare Earth and Urban landcovers (117 NVA points), 48 in Tall Grass and Brushland/Low Trees categories (48 VVA points), were used to assess the vertical accuracy of the data. These checkpoints were not used to calibrate or post process the data. The NOAA Office for Coastal Management (OCM) downloaded this lidar data from the USGS site: ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/NED/LPC/Projects/USGS_LPC_AK_Yukon_Kuskokwim_2016_LAS_2017/ and processed the data to be available on the Digital Coast Data Access Viewer (DAV). 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 are available for custom download at the link provided in the URL section of this metadata record. Breakline data are also available. These data are are available for download at the link provided in the URL section of this metadata record. These products have not been reviewed by the NOAA Office for Coastal Management (OCM) and any conclusions drawn from the analysis of this information are not the responsibility of NOAA or OCM. This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data.