{
    "identifier": "gov.noaa.ncei:trackline-geophysics",
    "accessLevel": "public",
    "contactPoint": {
        "@type": "vcard:Contact",
        "fn": "Your contact point",
        "hasEmail": "mailto:[email protected]"
    },
    "programCode": [
        "010:000"
    ],
    "landingPage": "",
    "title": "Marine Trackline Geophysical Database for M77 Data",
    "description": "Marine Trackline Geophysical data represented by the M77 tag are inclusive of singlebeam bathymetry, marine magnetic, and gravity data and were collected during marine cruises from 1933 to the present. These data are traditionally stored in the M77T format and are a foundational dataset for NOAA. Coverage is worldwide. One Header record and multiple Data records are available for a particular cruise\/leg (port to port operation). The Header record documents both the content and the structure of the subsequent Data records, containing that part of the data that remains invariant throughout the cruise. The Data records present geophysical data (bathymetry, magnetics and gravity) with a corresponding time and position. Documentation that varies within the cruise is also included with the data records. Data are fully searchable on-line by geographic area, year of cruise, institution, platform, cruise, date or data type.",
    "language": "",
    "distribution": [
        {
            "@type": "dcat:Distribution",
            "mediaType": "application\/json",
            "accessURL": "https:\/\/www.ncei.noaa.gov\/metadata\/geoportal\/\/rest\/metadata\/item\/gov.noaa.ncei%3Atrackline-geophysics"
        },
        {
            "@type": "dcat:Distribution",
            "mediaType": "text\/html",
            "accessURL": "https:\/\/www.ncei.noaa.gov\/metadata\/geoportal\/\/rest\/metadata\/item\/gov.noaa.ncei%3Atrackline-geophysics\/html"
        },
        {
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            "mediaType": "application\/xml",
            "accessURL": "https:\/\/www.ncei.noaa.gov\/metadata\/geoportal\/\/rest\/metadata\/item\/gov.noaa.ncei%3Atrackline-geophysics\/xml"
        },
        {
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            "mediaType": "application\/octet-stream",
            "accessURL": "https:\/\/ngdc.noaa.gov\/mgg\/image\/trkmap256x235.gif"
        },
        {
            "@type": "dcat:Distribution",
            "mediaType": "application\/octet-stream",
            "accessURL": "https:\/\/gis.ngdc.noaa.gov\/arcgis\/rest\/services\/web_mercator\/trackline_combined_dynamic\/MapServer"
        },
        {
            "@type": "dcat:Distribution",
            "mediaType": "application\/octet-stream",
            "accessURL": "https:\/\/gis.ngdc.noaa.gov\/arcgis\/services\/web_mercator\/trackline_combined_dynamic\/MapServer\/WMSServer?request=GetCapabilities&service=WMS"
        },
        {
            "@type": "dcat:Distribution",
            "mediaType": "application\/octet-stream",
            "accessURL": "https:\/\/gis.ngdc.noaa.gov\/arcgis\/rest\/services\/web_mercator\/trackline_combined_dynamic\/MapServer"
        },
        {
            "@type": "dcat:Distribution",
            "mediaType": "application\/octet-stream",
            "accessURL": "https:\/\/gis.ngdc.noaa.gov\/arcgis\/services\/web_mercator\/trackline_combined_dynamic\/MapServer\/WMSServer?request=GetCapabilities&service=WMS"
        }
    ],
    "bureauCode": [
        "010:04"
    ],
    "modified": "2025-04-04T12:42:40.829Z",
    "publisher": {
        "@type": "org:Organization",
        "name": "Your Publisher"
    },
    "theme": "",
    "keyword": [
        "Earth Science > Oceans > Bathymetry\/Seafloor Topography > Water Depth",
        "Earth Science > Oceans > Marine Geophysics > Magnetic Anomalies",
        "Earth Science > Oceans > Marine Geophysics > Marine Gravity Field",
        "Earth Science > Oceans > Marine Geophysics > Marine Magnetics",
        "Earth Science > Solid Earth > Geodetics\/Gravity > Gravity",
        "Earth Science > Solid Earth > Geomagnetism > Magnetic Anomalies",
        "Earth Science > Solid Earth > Geomagnetism > Magnetic Field",
        "Earth Science > Oceans > Bathymetry\/Seafloor Topography > Bathymetry",
        "Earth Science > Oceans > Bathymetry\/Seafloor Topography > Seafloor Topography",
        "INFOTERRA > Energy > Energy processes > Natural gas exploration",
        "INFOTERRA > Energy > Energy processes > Oil exploration",
        "INFOTERRA > Subject disciplines > Geophysics > Geophysics",
        "NGDA",
        "National Geospatial Data Asset",
        "Elevation Theme",
        "ICSU-WDS > International Council for Science - World Data System",
        "Geographic Region > Global Ocean",
        "Vertical Location > Sea Floor",
        "Ocean > Arctic Ocean",
        "Ocean > Atlantic Ocean",
        "Ocean > Indian Ocean",
        "Ocean > Pacific Ocean",
        "Ocean > Southern Ocean",
        "DOC\/NOAA\/NESDIS\/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce",
        "oceans",
        "DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS",
        "DATA MANAGEMENT\/DATA HANDLING > DATA SEARCH AND RETRIEVAL",
        "DATA ANALYSIS AND VISUALIZATION > VISUALIZATION\/IMAGE PROCESSING"
    ]
}