{
    "identifier": "gov.noaa.ncei.oer.cruise:EX2103_COLLECTION",
    "accessLevel": "public",
    "contactPoint": {
        "@type": "vcard:Contact",
        "fn": "Your contact point",
        "hasEmail": "mailto:[email protected]"
    },
    "programCode": [
        "010:000"
    ],
    "landingPage": "",
    "title": "EX2103: 2021 ROV Shakedown (ROV & Mapping)",
    "description": "This Remotely Operated Vehicle (ROV) shakedown expedition aboard NOAA Ship Okeanos Explorer began in Norfolk, Virginia on June 13, 2021 and concluded on June 28, 2021 in Newport, Rhode Island. This was the first time the ROVs Deep Discoverer and Seirios were mobilized and used for ROV dives since the extensive 2021 winter dry dock repair period. While underway, 24\u2010hour operations focused on preparing remotely operated vehicle (ROV) systems for the remainder of 2021 expeditions. Extensive testing, calibration, and troubleshooting was completed for new ROV motors, motor controllers, cameras, lighting, hydraulic systems, and a navigational sonar during 11 ROV dives. The first five dives progressively got to deeper depths ranging from 670 m to 4370 m with the primary objective of new equipment integration and personnel training. The following five dives were conducted on Caryn Seamount, and the mid-Atlantic canyons Toms, Hudson (twice), and Uchupi. The last dive of the expedition was on a recently discovered sonar anomaly that turned out to be a World War II era submarine, the Humait\u00e1 (ex-USS Muskallunge). Five biological and three geological samples were collected for later analyses from Caryn Seamount and the mid-Atlantic canyons. Mapping operations during the expedition included continued calibrating and troubleshooting of the ship's new EM304 multibeam sonar and transducer array. Additional mapping operations included improving multibeam bathymetry in previously mapped areas, sub-bottom sonar surveys conducted on the Currituck landslide feature off of North Carolina, EK60 water column sonar survey of the diurnal migration above Hudson Canyon, and searching for underwater cultural heritage sites by observing sonar depth and backscatter anomalies.",
    "language": "",
    "distribution": [
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            "@type": "dcat:Distribution",
            "mediaType": "application\/json",
            "accessURL": "https:\/\/www.ncei.noaa.gov\/metadata\/geoportal\/\/rest\/metadata\/item\/gov.noaa.ncei.oer.cruise%3AEX2103_COLLECTION"
        },
        {
            "@type": "dcat:Distribution",
            "mediaType": "text\/html",
            "accessURL": "https:\/\/www.ncei.noaa.gov\/metadata\/geoportal\/\/rest\/metadata\/item\/gov.noaa.ncei.oer.cruise%3AEX2103_COLLECTION\/html"
        },
        {
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        }
    ],
    "bureauCode": [
        "010:04"
    ],
    "modified": "2025-11-14T14:25:43.482Z",
    "publisher": {
        "@type": "org:Organization",
        "name": "Your Publisher"
    },
    "theme": "",
    "keyword": [
        "North Atlantic Ocean",
        "Earth Science > Oceans > Marine Environment Monitoring",
        "Earth Science > Oceans > Aquatic Sciences",
        "expedition",
        "exploration",
        "explorer",
        "marine education",
        "noaa",
        "ocean",
        "ocean discovery",
        "ocean education",
        "ocean exploration",
        "ocean exploration and research",
        "OER",
        "ocean literacy",
        "ocean research",
        "science",
        "scientific mission",
        "scientific research",
        "sea",
        "stewardship",
        "systematic exploration",
        "technology",
        "transformational research",
        "undersea",
        "underwater",
        "okeanos explorer",
        "okeanos",
        "scientific computing system",
        "SCS",
        "noaa fleet",
        "R337",
        "multibeam",
        "multibeam sonar",
        "telepresence",
        "sub-bottom profile",
        "mapping survey",
        "multibeam backscatter",
        "water column backscatter",
        "singlebeam sonar",
        "single beam sonar",
        "single-beam sonar",
        "deep-sea exploration",
        "high-definition underwater video",
        "underwater video",
        "exploration vessel",
        "NOAA Ship Okeanos Explorer",
        "Deep Discoverer ROV",
        "SEIRIOS Camera Sled",
        "Acoustic Sounders",
        "CTD > Conductivity, Temperature, Depth",
        "XBT > Expendable Bathythermographs",
        "Wind Monitor",
        "Thermosalinographs",
        "GPS > Global Positioning System",
        "Positioning\/Navigation",
        "MBES > Multibeam Mapping System",
        "Echo Sounders",
        "Underwater Video Camera",
        "DOC\/NOAA\/NESDIS\/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce",
        "DOC\/NOAA\/OAR\/OER > Office of Ocean Exploration and Research, Oceanic & Atmospheric Research, NOAA, U.S. Department of Commerce",
        "oceans",
        "geoscientificInformation"
    ]
}