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Okeanos Explorer (EX1504L1): CAPSTONE NWHI & Johnston Exploration Mapping

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: December 19, 2025 | Last Modified: 2023-10-30T19:22:43.000+00:00
Multibeam and singlebeam mapping operations will be conducted 24 hours a day throughout the cruise. Sub-bottom profile mapping will be conducted 24 hours a day at the discretion of the CO. Most of the mapping areas to be pursued during this cruise have never been mapped with modern sonar before. Mapping activities will focus on three primary areas, (1) some potential underwater cultural heritage sites south of Oahu, (2) the Necker Island area within the Papahānaumokuākea Marine National Monument (PMNM), and (2) the Karin Seamount Chain near Johnson Atoll within the recently expanded Pacific Remote Islands Marine National Monument (PRIMNM).

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