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
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 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/71901
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 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
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
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 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords

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)

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