Sonar and seismic lake surveys along the proposed triangle road corridor, northwestern Alaska, collected July 6-13, 2021

Description

Sonar and seismic lake surveys along the proposed triangle road corridor, northwestern Alaska, collected July 6-13, 2021, Raw Data File 2023-1, provides bathymetric sonar and seismic data for 12 lakes in a proposed road corridor between Atqasuk and Wainwright, Alaska, on July 6-13, 2021. These surveys aimed to assess gravel resources in northwestern Alaska as part of the Arctic Strategic Transportation and Resources (ASTAR) program. We measured lake depths with an Edgetech 2205 sonar system and imaged near-surface sediment profiles with an Edgetech sub-bottom profiler, or chirp sensor, installed in a catamaran-style Sea Robotics SR-Surveyor M1.8 autonomous hydrographic survey system. Very little is known about lake-bottom conditions in the region. In addition to acquiring new information about North Slope lake bathymetry, this work serves as a pilot study to identify optimal equipment configuration and project design for challenging, helicopter-supported remote data collection. The data associated with this report are available in digital format as bathymetric digital terrain models (DTMs), bathymetric control points, sontek density and salinity profiles, sonar images, seismic profiles, and a comma-separated value (CSV) file of the lake locations. The data are available from the DGGS website: http://doi.org/10.14509/30954.

Resources

Name Format Description Link
0 https://doi.org/10.14509/30954
0 https://doi.org/10.14509/30915
0 https://doi.org/10.14509/30961
0 https://doi.org/10.14509/30962
0 https://doi.org/10.14509/30791
0 https://doi.org/10.14509/30670
0 bathymetric digital terrain models (DTMs), bathymetric control points, sontek density and salinity profiles, sonar images, and seismic profiles https://doi.org/10.14509/30954
0 https://doi.org/10.14509/30870

Tags

  • atqasuk
  • resources
  • geomorphology
  • geologic materials
  • bathymetry
  • kunarak creek
  • gravel
  • geologic
  • elevation
  • hydrology and surficial geology
  • geology
  • dggs
  • permafrost and periglacial
  • north slope
  • lakes
  • water
  • walik creek
  • hydrology
  • surface

Topics

  • Local Government

Categories