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        "ship":null,
        "samp_equip_type":null,
        "terms_of_use_url":null,
        "client":"Imperial College London",
        "start_date":"1991-11-01T00:00:00",
        "shape":null,
        "contractor":"British Geological Survey",
        "start_date_est":"Estimated",
        "cruise_data_url":null,
        "mdfileid_nerc_guid":"0963fd4c-a012-5f7e-e054-002128a47908",
        "cruise_area":null,
        "end_date":"1991-12-31T00:00:00",
        "cruise":"1991/1_IMP",
        "abstract":"This geophysical survey has been carried out by British Geological Survey (BGS) for Imperial College London took place in winter 1991 on Malham Tarn on board a dory. The purpose was to collect data for Imperial College project. The surface tow boomer and echo sounder records are archived by BGS. The navigation data was acquired and retained by Imperial College using a theodolite. No survey report currently available.",
        "end_date_est":"Estimated",
        "cruise_alias":"1991/1",
        "additional_info":"For more detailed information on the acquisition equipment and data collection techniques, operational standards, data processing methods and quality control procedures used on this survey see the Report of Survey/Cruise Report and associated documentation where available. The information available may vary depending on the age of the survey. Data are checked and loaded to the BGS Coastal and Marine data management system following BGS marine data management procedures.",
        "confidentiality":"restricted",
        "restitle":"Geophysical Survey 1991/1: Malham Tarn, Yorkshire (winter 1991)",
        "nav_equip_type":"Not Available",
        "accessuse_restric":null,
        "geophys_equip_type":"Echo Sounder, Surface Tow Boomer",
        "terms_of_use":"The metadata is freely available for general disclosure. The actual survey data is restricted."
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