Skip to main content
U.S. flag

An official website of the United States government

EM304 Water Column Sonar Data Collected During EX2306

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: April 12, 2026 at 08:37 PM | Dataset Last Updated: June 13, 2024 at 12:00 AM
From August 23rd - September 14th, 2023 (Kodiak, Alaska to Seward, Alaska), NOAA Ocean Exploration conducted Seascape Alaska 5: Gulf of Alaska Remotely Operated Vehicle Exploration and Mapping (EX2306), a remotely operated vehicle (ROV) and mapping expedition to the Gulf of Alaska. Operations during this 23-day expedition included the completion of 19 successful remotely operated vehicle (ROV) dives, which were conducted in water depths ranging from 253.1 m to 4261.5 m for approximately 87 hours of bottom time and resulted in the collection of 383 samples. EX2306 also collected more than 28,000 sq. km of seafloor bathymetry and associated water column data using an EM 304 multibeam sonar. All data associated with this expedition will be archived within 120 days of the end of the expedition and will be publicly available through the NOAA Archives.

Resources

6 resources available

  • Water Column Sonar Data Map Viewer

    TEXT/HTML
  • AWS Cloud Storage Bucket

    TEXT/HTML
  • Water Column Sonar Data Archive Homepage

    TEXT/HTML
  • Global Change Master Directory (GCMD) Keywords

    TEXT/HTML
  • International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)

    TEXT/HTML
  • NCEI Contact Information

    TEXT/HTML

Find Related Datasets

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov