@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/2d55ff44-2172-48cf-8121-b28e7592e7f6> a dcat:Dataset ;
    dct:description "The compressed (.zip) file contains Datawell MK-III Directional Waverider binary and unpacked data files as well as a description of the data and manuals for the instrumentation. The data files are contained in the two directories within the zip file, \"Apr_July_2012\" and \"Jun_Sept_2013\". Time series and summary data were recorded in the buoy to binary files with extensions '.RDT' and '.SDT', respectively. These are located in the subdirectories 'Data_Raw' in each of the top-level deployment directories. '.RDT' files contain 3 days of time series (at 1.28 Hz) in 30 minute \"bursts\". Each '.SDT' file contains summary statistics for the month indicated computed at half-hour intervals for each burst. Each deployment directory also contains a description (in 'File.list') of the Datawell binary data files, and a figure ('Hs_vs_yearday') showing the significant wave height associated with each .RDT file (decoded from the filename).  The corresponding unpacked Matlab .mat files are contained in the subdirectories 'Data_Mat'. These files have the extension '.mat' but use the root filename of the source .RDT and .SDT files." ;
    dct:identifier <https://data.openei.org/submissions/3905> ;
    dct:issued "2015-10-07T06:00:00+00:00"^^xsd:dateTime ;
    dct:modified "2020-07-30T18:08:57+00:00"^^xsd:dateTime ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-70.5759 40.9334, -70.0641 40.9334, -70.0641 41.3348, -70.5759 41.3348, -70.5759 40.9334))"^^gsp:wktLiteral ] ;
    dct:title "University of Massachusetts Marine Renewable Energy Center Waverider Buoy Data" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Steven Lohrenz" ;
            vcard:hasEmail <mailto:slohrenz@umassd.edu> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/2d55ff44-2172-48cf-8121-b28e7592e7f6/resource/317f9935-cef7-4078-9c0d-517960987e0e>,
        <https://data.amerigeoss.org/dataset/2d55ff44-2172-48cf-8121-b28e7592e7f6/resource/abbd312d-1126-4517-8ee4-40822e152357>,
        <https://data.amerigeoss.org/dataset/2d55ff44-2172-48cf-8121-b28e7592e7f6/resource/c7b9a349-c607-47af-bf5c-6f5fdb65e967> ;
    dcat:keyword "accelerometer",
        "accelerometer-data",
        "amerigeo",
        "amerigeoss",
        "binary",
        "binary-data",
        "bouy-data",
        "buoy-orientation",
        "burst",
        "characterization",
        "ckan",
        "data",
        "datalogger",
        "datawell",
        "directional-spread",
        "energy",
        "frequency",
        "geo",
        "geospatial-data",
        "geoss",
        "hydrokinetic",
        "instrumentation",
        "magnetic-field-inclination",
        "marine",
        "marine-renewable-energy-center",
        "martha",
        "marthas",
        "matlab",
        "mean-direction",
        "mhk",
        "nantucket",
        "nantucket-shoals",
        "national",
        "normalized-height-power-spectrum",
        "north-america",
        "ocean",
        "oceanographic",
        "raw",
        "raw-data",
        "rdt",
        "resource",
        "rhode-island",
        "sdt",
        "significant-wave-height",
        "spectral-bandwidth",
        "time-series",
        "united-states",
        "unpacked",
        "unpacked-data",
        "vineyard",
        "wave-data",
        "wave-height-spectrum",
        "waverider",
        "woods-hole-oceanographic-institution" .

<https://data.amerigeoss.org/dataset/2d55ff44-2172-48cf-8121-b28e7592e7f6/resource/317f9935-cef7-4078-9c0d-517960987e0e> a dcat:Distribution ;
    dct:description "Archived data file containing the data description, map, manuals, and raw and unpacked (matlab format) data for two deployments:  19 April - 28 July, 2012 off Martha's Vineyard and 26 June - 24 September, 2013 at Nantucket Shoals. See ReadMe.pdf for descriptions of individual files." ;
    dct:format "ZIP" ;
    dct:issued "2021-06-24T00:18:39.106360"^^xsd:dateTime ;
    dct:modified "2025-11-20T17:20:34.820901"^^xsd:dateTime ;
    dct:title "Waverider buoy data and manuals.zip" ;
    dcat:accessURL <https://mhkdr.openei.org/files/54/DOE_data.zip> ;
    dcat:mediaType "application/zip" .

<https://data.amerigeoss.org/dataset/2d55ff44-2172-48cf-8121-b28e7592e7f6/resource/abbd312d-1126-4517-8ee4-40822e152357> a dcat:Distribution ;
    dct:description "Document with coordinates of deployments and map showing bouy locations. " ;
    dct:format "PDF" ;
    dct:issued "2021-06-24T00:18:39.106357"^^xsd:dateTime ;
    dct:modified "2025-11-20T17:20:34.820517"^^xsd:dateTime ;
    dct:title "Map of Waverider deployment locations.pdf" ;
    dcat:accessURL <https://mhkdr.openei.org/files/54/Deployment_Map.pdf> ;
    dcat:mediaType "application/pdf" .

<https://data.amerigeoss.org/dataset/2d55ff44-2172-48cf-8121-b28e7592e7f6/resource/c7b9a349-c607-47af-bf5c-6f5fdb65e967> a dcat:Distribution ;
    dct:description "README data dictionary explaining the file formats within the data archive and the column headers within individual data files, including descriptions of individual fields." ;
    dct:format "PDF" ;
    dct:issued "2021-06-24T00:18:39.106351"^^xsd:dateTime ;
    dct:modified "2025-11-20T17:20:34.820093"^^xsd:dateTime ;
    dct:title "Description of Waverider data format.pdf" ;
    dcat:accessURL <https://mhkdr.openei.org/files/54/ReadMe.pdf> ;
    dcat:mediaType "application/pdf" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .