1950 - 2023 NOAA Seamless Topobathy DEM (Compiled 2023): Kachemak, Point Hope, Teller, AK

Description

NOAA Seamless Topobathy Digital Elevation Model Pilot Incorporating Satellite-Derived Bathymetry - Kachemak, Teller, Point Hope, Alaska, project number 1305M223FNCNP0283DPR. Seamless topographic-bathymetry models were produced for three AOIs along the Alaskan coast, integrating multiple source datasets including bathymetric lidar, topographic lidar, multibeam and singlebeam echosounder, IFSAR, and satellite-derived bathymetry (SDB). Satellite-derived bathymetry was produced using empirical and physics-based radiative transfer models, derived from Maxar and Planet Labs mutlispectral imagery. All data sources were adjusted from MLLW to NAVD88 before integrating to a weighted grid, with weights assigned based on quality and data currency. The weighted grid was then interpolated utilizing Generic Mapping Tools (GMT) surface module, leveraging a spline-in-tension interpolation. DEMs were delivered at 2m resolution. Each DEM delivery includes ancillary files including an in situ source map raster, a known issue polygon feature class, source imagery utilized for SDB production, the individual SDB rasters integrated with the topographic-bathymetry model. Kachemak AOI covers approximately 1012 km2 Point Hope AOI covers approximately 2329 km2 Teller AOI covers approximately 1160 km2

Resources

Name Format Description Link
0 NOAA Office for Coastal Management Home Page https://coast.noaa.gov
21 Bulk download of data files in the original coordinate system. https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/OCM_Kach_Teller_PtHope_AK_DEM_2023_10032/index.html
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/71901
0 NOAA Office for Coastal Management Home Page https://coast.noaa.gov
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocm/dmp/pdf/71901.pdf
0 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. https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=10032/details/10032
0 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
33 Link to the TCarta/Axim lidar report. https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/OCM_Kach_Teller_PtHope_AK_DEM_2023_10032/supplemental/NOAA_Axim_TCarta_SeamlessTopobathyDEMPilot_Kachemak_Teller_PointHope_Revision03DPR_508OCM.pdf
0 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. https://coast.noaa.gov/dataviewer/
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocm/dmp/pdf/71901.pdf
0 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
21 Bulk download of data files in the original coordinate system. https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/OCM_Kach_Teller_PtHope_AK_DEM_2023_10032/index.html
0 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. https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=10032/details/10032
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/71901
33 Link to the TCarta/Axim lidar report. https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/OCM_Kach_Teller_PtHope_AK_DEM_2023_10032/supplemental/NOAA_Axim_TCarta_SeamlessTopobathyDEMPilot_Kachemak_Teller_PointHope_Revision03DPR_508OCM.pdf
0 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. https://coast.noaa.gov/dataviewer/
0 NOAA Office for Coastal Management Home Page https://coast.noaa.gov
0 NOAA Office for Coastal Management Home Page https://coast.noaa.gov

Tags

  • vertical location
  • topography
  • alaska
  • united states of america
  • office of coastal management
  • land surface
  • terrain elevation
  • national ocean service
  • dems
  • bathymetry
  • oceans
  • continent
  • noaa
  • north america
  • airplane
  • doc/noaa/nos/ocm
  • coastal elevation
  • u.s. department of commerce
  • earth science
  • bathymetry/seafloor topography
  • coastal bathymetry
  • light detection and ranging
  • lidar
  • coastal processes
  • digital elevation/terrain model (dem)

Topics

Categories