Pre-Delta-X: Channel Bathymetry of the Atchafalaya Basin, LA, USA, 2016

Description

This dataset provides water depths and water surface elevations collected during bathymetric surveys of the main channel of the Wax Lake Delta within the Mississippi River Delta (MRD) floodplain of coastal Louisiana, USA. The measurements were made during the Pre-Delta-X Campaign in Fall 2016. The in situ continuous (1 Hz) surveys of channel bathymetry were conducted using a SonarMite Hydrolite Single Beam Echo Sounder mounted on the side of the research boat. The sounder was located directly beneath the Septentrio global navigation satellite system (GNSS) antenna, about 30 cm below the water surface. The sounder depth observations were integrated with the GNSS location and elevation data into one data file per day for October 16-20. These bathymetry measurements were used to generate a merged digital elevation model (DEM) through interpolation with ancillary DEMs to expand the existing wetland DEM to include channels. The merged DEM product is distributed in GeoTIFF format.

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1807
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/deltax/PreDeltaX_Sonar_Bathymetry/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/DELTAX/guides/PreDeltaX_Sonar_Bathymetry.html
21 Delta-X Project Site https://deltax.jpl.nasa.gov/
33 Pre-Delta-X: Channel Bathymetry of the Atchafalaya Basin, LA, USA, 2016: PreDeltaX_Sonar_Bathymetry.pdf https://data.ornldaac.earthdata.nasa.gov/public/deltax/PreDeltaX_Sonar_Bathymetry/comp/PreDeltaX_Sonar_Bathymetry.pdf
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1807
22 This figure shows in blue the extent of the Fall 2016 channel bathymetry survey in the main channels of the Atchafalaya and Wax Lake Deltas. https://daac.ornl.gov/DELTAX/guides/PreDeltaX_Sonar_Bathymetry_Fig1.jpg

Tags

  • ecosystems
  • land-surface
  • biosphere
  • bathymetry-seafloor-topography
  • oceans
  • geomorphic-landforms-processes
  • earth-science

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