Observation Instance

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{
    "ob_id": 35039,
    "uuid": "5b0d2588954e404ab03e8f439d48a8d3",
    "title": "Multi-frequency, three-dimensional, four-component ocean bottom seismometer dataset acquired from an active fluid flow structure: Scanner Pockmark, North Sea.",
    "abstract": "A three-dimensional wide-angle active source seismic dataset was acquired during RRS James Cook cruise JC152 (August - September 2017), around the Scanner Pockmark Complex in the North Sea. Data were recorded on 25 four-component ocean bottom seismometers, recording at a sampling rate of 4 kHz. Four different seismic sources were used: \r\n\r\n1) a 700 ci (100, 200 and 400 ci) Bolt airgun array towed at 10-12 m below sea surface and fired at 10 s intervals; \r\n2) a 420 ci (2 x 105/105 ci) GI airgun array, towed at 2 m depth below sea surface and fired at 8 s intervals; \r\n3) a Squid sparker (1750 or 2000 J), towed at the sea surface and triggered at 2 s intervals; and, \r\n4) a Duraspark sparker (2000 J), towed at the sea surface and triggered at 2 s intervals. \r\n\r\nThis dataset complements Bayrakci et al. (2021; https://doi.org/10.1594/PANGAEA.932200) and updates instrument and shot corrections to fit a single, unique set of instrument positions, generated using a grid search algorithm. \r\n\r\nData are provided in standard SEG-Y format. The shot line geometry corrections were performed following the method described in the accompanying document CHIMNEY_OBS_corrections_summary.pdf. All location information is also present in the positioning directory. The data were acquired as part of the 'Characterization of major overburden leakage pathways above sub-seafloor CO2 storage reservoirs in the North Sea' (CHIMNEY) project, funded by the Natural Environment Research Council (NERC) under grant reference NE/N016130/1.",
    "keywords": "seismic reflection, ocean bottom seismograph, active source seismology, passive source seismology, fluid flow pathways",
    "publicationState": "published",
    "dataPublishedTime": "2022-04-27T11:36:51",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
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        "dataPath": "/bodc/USO220011/CHIMNEY_OBS_active",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 868369944141,
        "numberOfFiles": 924,
        "fileFormat": "Data are SEGY formatted data files"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/10226/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/3409/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "Three-dimensional wide-angle active source seismic data were acquired during NERC cruise JC152 from August-September 2017 in the North Sea. The raw data were processed by the science party and provided to the British Oceanographic Data Centre for long-term archive. Data were subsequently archived and catalogued at CEDA.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
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        "https://api.catalogue.ceda.ac.uk/api/v2/projects/37051/?format=api"
    ],
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        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/170194/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/170193/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/170192/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/177019/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/177020/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/177021/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/177022/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/177023/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/177024/?format=api"
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    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/37080/?format=api",
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            "accessCategory": "public",
            "accessRoles": null,
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}