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EM304 Water Column Sonar Data Collected During EX2503

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: April 12, 2026 | Last Modified: 2026-03-24T00:00:00.000+00:00
From April 8th to May 5th, 2025 (Honolulu, Hawai’i to Honolulu, Hawai’i), NOAA Ocean Exploration conducted the Beyond the Blue: Papahānaumokuākea ROV and Mapping expedition (EX2503), an ROV and Mapping expedition to Papahānaumokuākea National Marine Monument. EX2503 mapped 48,219 sq. km of seafloor (14,058.5 nautical miles) and conducted 18 dives with the Remotely perate Vehicle (ROV) Deep Discoverer. 127 biological specimens, 95 eDNA Water samples and 5 geological samplers were collected during the expedition. All data associated with this expedition have been archived and are publicly available through the NOAA archives.

Resources

6 resources available

  • Water Column Sonar Data Map Viewer

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  • AWS Cloud Storage Bucket

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  • Water Column Sonar Data Archive Homepage

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  • GCMD Keyword Forum Page

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

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  • NCEI Contact Information

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