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2024 NOAA Lidar DEM: AK Coastal Communities (Kachemak Bay)

Published by Office for Coastal Management | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: May 10, 2026 at 12:53 PM | Dataset Last Updated: January 01, 2025 at 12:00 AM
Original Product: Hydroflattened Digital Elevation Model (DEM) data covering the NOAA AK Communities 2025 project area. Original Geographic Extent: This dataset and derived products encompass an area covering approximately 286,327 acres of Southwest Alaska. Original Dataset Description: Lidar flight line swaths were processed to create 2,299 classified LAZ 1.4 files delineated in 750m x 750m tiles. Each LAZ file contains lidar point information, which has been calibrated, controlled, and classified. Class 2 (ground) lidar points in conjunction with the hydro breaklines were used to create 2,299 - 0.5 meter hydro-flattened Raster DEMs delineated in 750m x 750m tiles. Non-Vegetated Vertical Accuracy (NVA) was assessed using 43 check points located on bare earth in clear, unobstructed areas. Vegetated Vertical Accuracy (VVA) was assessed using 19 check points in Tall Grass, Forest, and Shrub landcover types. Additional products include classified LAZ files, intensity images, maximum surface height rasters, and 3D breaklines of water bodies within the study area. Ground Condition: Ground conditions contained snow at high elevations and acquisition occurred free of smoke, fog and cloud cover

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Complete Metadata
@type dcat:Dataset
accessLevel non-public
contactPoint 
                                            {
  "fn": "NOAA Office for Coastal Management",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:coastal.info@noaa.gov"
}
describedByType application/octet-steam
description Original Product: Hydroflattened Digital Elevation Model (DEM) data covering the NOAA AK Communities 2025 project area. Original Geographic Extent: This dataset and derived products encompass an area covering approximately 286,327 acres of Southwest Alaska. Original Dataset Description: Lidar flight line swaths were processed to create 2,299 classified LAZ 1.4 files delineated in 750m x 750m tiles. Each LAZ file contains lidar point information, which has been calibrated, controlled, and classified. Class 2 (ground) lidar points in conjunction with the hydro breaklines were used to create 2,299 - 0.5 meter hydro-flattened Raster DEMs delineated in 750m x 750m tiles. Non-Vegetated Vertical Accuracy (NVA) was assessed using 43 check points located on bare earth in clear, unobstructed areas. Vegetated Vertical Accuracy (VVA) was assessed using 19 check points in Tall Grass, Forest, and Shrub landcover types. Additional products include classified LAZ files, intensity images, maximum surface height rasters, and 3D breaklines of water bodies within the study area. Ground Condition: Ground conditions contained snow at high elevations and acquisition occurred free of smoke, fog and cloud cover
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "Customized Download",
    "accessURL": "https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=10419/details/10419",
    "mediaType": "text/html",
    "description": "Create custom data files by choosing data area, map projection, file format, etc. A new metadata will be produced to reflect your request using this record as a base.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Bulk Download",
    "accessURL": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/AK_KachemakBay_DEM_2024_10419/index.html",
    "mediaType": "text/html",
    "description": "Bulk download of data files in GeoTIFF format, UTM Zone 5N NAD83(2011) meters coordinates and elevations in NAVD88 (GEOID12B) meters.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "GCMD Keyword Forum Page",
    "accessURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords",
    "mediaType": "text/html",
    "description": "Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. 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",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Full Metadata Record",
    "accessURL": "https://www.fisheries.noaa.gov/inport/item/77562",
    "mediaType": "text/html",
    "description": "View the complete metadata record on InPort for more information about this dataset.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NOAA Office for Coastal Management Website",
    "accessURL": "https://coast.noaa.gov",
    "mediaType": "text/html",
    "description": "NOAA Office for Coastal Management Home Page",
    "describedByType": "application/octet-stream"
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]
identifier https://data.noaa.gov/waf/NOAA/nos/ocm/iso/xml/77562.xml
issued 2024-01-01T00:00:00.000+00:00
keyword 
                                            [
  "EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION",
  "EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > DIGITAL ELEVATION/TERRAIN MODEL (DEM)",
  "EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALASKA",
  "VERTICAL LOCATION > LAND SURFACE",
  "LIDAR > Light Detection and Ranging",
  "Airplane > Airplane",
  "DOC/NOAA/NOS/OCM > Office of Coastal Management, National Ocean Service, NOAA, U.S. Department of Commerce",
  "DEMs"
]
landingPage https://www.fisheries.noaa.gov/inport/item/77562
language 
                                            []
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2025-01-01T00:00:00.000+00:00
publisher 
                                            {
  "name": "Office for Coastal Management",
  "@type": "org:Organization"
}
rights otherRestrictions, unclassified
spatial -150.849167,59.222021,-151.995345,59.639355
temporal 2023-08-01T00:00:00+00:00/2023-08-02T00:00:00+00:00
title 2024 NOAA Lidar DEM: AK Coastal Communities (Kachemak Bay)

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