Mapping Data Acquisition and Processing Summary Report: EX-15-04 Leg 4, Hohonu Moana 2015: Exploring the Deep Waters off Hawai’i (ROV & Mapping)

The purpose of this report is to briefly describe the acoustic seafloor and water column mapping data collection and processing methods used during exploration expedition EX-15-04 L4, and to present a summary of the overall mapping results and mapping related cruise activities. A detailed description of the Okeanos Explorer’s mapping capabilities is available in the 2015 NOAA Ship Okeanos Explorer Mapping Systems Readiness Report, available at doi:10.25923/hhvn-7d52. A full description of Remotely Operated Vehicle (ROV) operations and sample collections completed during the cruise is available in a separate Expedition Report available in the NOAA Central Library with the title “Cruise Report: EX-15-04 L4, Hohonu Moana 2015: Exploring the Deep Waters off Hawai’i (ROV & Mapping).”