Monthly Archives: July 2017

Transit to Honolulu

NOAA Ship Okeanos Explorer has completed the final dive of the Laulima O Ka Moana: Exploring Deep Monument Waters Around Johnston Atoll expedition. The team will transit back to Honolulu, arriving on August 2. The team will conduct mapping operations for the … Continue reading

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Dive 15: Final Dive

The vehicles are in the water for the final dive of the Laulima O Ka Moana expedition. Today’s dive is on an unnamed seamount that abuts the southeast edge of the Johnston Atoll Unit. The onboard team mapped the seamount … Continue reading

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Dive 14: Southeast Guyot Ridge

ROV Deep Discoverer will explore a rift zone ridge extending southeast from a guyot located in the Johnston Atoll Unit of the Pacific Remote Islands Marine National Monument today, starting at a depth of ~2,510 meters (~8,235 feet). These ridges have … Continue reading

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Dive 12: Unnamed Seamount

After mapping all last night, the team put the collected bathymetry data to use to plan today’s dive. Deep Discoverer is in the water and making her way to a depth of ~2,325 meters (7,628 feet) to explore on an unnamed … Continue reading

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Dive 11: “Ridge” Seamount

Today’s dive will be to a depth of approximately 2,440 meters (~8005 feet). “Ridge” Seamount is in the southern part of the Johnston Atoll Unit of the Pacific Remote Islands Marine National Monument, where no previous mapping or ROV surveys … Continue reading

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Dive 10: “Wetmore” Seamount East

The ROVs should be in the water at approximately 8:30 AM, HST (2:30 PM, EDT) and will go to a starting depth of ~2,100 meters (~6,890 feet). We will explore a rift zone ridge extending southeast from the east side … Continue reading

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Dive 09: “Wetmore” Seamount

ROV Deep Discoverer will dive on a rift zone ridge extending SE from Wetmore Seamount, a guyot located near Johnston Atoll, beginning at a depth of 2,600 meters (~8,530 feet). Ridges act as barriers to bottom current flow and their … Continue reading

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Dive 8: “Pierpont” Seamount

Today’s dive will be on a manganese-crusted guyot; its summit edges may have deep water coral and sponge communities. This particular site is on a potential “pancake volcano” created by secondary volcanism that should yield valuable rocks for geologic aging.  … Continue reading

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Dive 07: “Edmondson” Seamount

The maintenance for the cable supplying power and communications to ROV Deep Discoverer has been completed and we are diving again. Today’s dive will take place on an unexplored area of “Edmondson” Seamount and will begin at about 8:30 AM, HST (2:30 PM, … Continue reading

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Mapping Johnston Atoll

The Engineering Team is continuing to troubleshoot and repair ROV Deep Discoverer. There will be no dive for July 20. Instead, we will spend the day mapping. We plan to dive again on Friday, July 21. For more information about this … Continue reading

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