{
  "accessLevel": "public",
  "bureauCode": [
    "010:12"
  ],
  "contactPoint": {
    "@type": "vcard:Contact",
    "fn": "E. Randall Bayless",
    "hasEmail": "mailto:ebayless@usgs.gov"
  },
  "description": "The colloidal borescope flowmeter (HB) used in this testing was developed by AquaVISION, Llc. The instrument employs a charge-coupled device camera, an optical magnification lens (140x), and a light-emitting diode (LED) illumination source to visually track neutrally buoyant colloids (approximately 1-5 microns) moving horizontally through the borehole. The device measured groundwater velocity and flow direction in the x-y (horizontal) plane. The HB magnetometer was checked with a compass to assure proper instrument orientation before deployment into the simulators. Borescope data were collected for each flow condition for a period of at least 30 minutes. After data collection, borescope data were inspected for anomalous periods of record that were caused by disturbances such as a vibration in the laboratory. Anomalous periods were deleted before computing the velocity and flow direction.",
  "distribution": [
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://doi.org/10.5066/P9IF9JH8",
      "description": "Landing page for access to the data",
      "format": "XML",
      "mediaType": "application/http",
      "title": "Digital Data"
    },
    {
      "@type": "dcat:Distribution",
      "description": "The metadata original format",
      "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.5cc215ade4b09b8c0b74717b.xml",
      "format": "XML",
      "mediaType": "text/xml",
      "title": "Original Metadata"
    }
  ],
  "identifier": "http://datainventory.doi.gov/id/dataset/USGS_5cc215ade4b09b8c0b74717b",
  "keyword": [
    "Groundwater flow",
    "Groundwater movement",
    "Hydrologic processes",
    "Laboratory experiments",
    "USGS Hydrologic Instrumentation Facility",
    "USGS Ohio-Kentucky-Indiana Water Science Center",
    "USGS:5cc215ade4b09b8c0b74717b",
    "fracture (geologic)",
    "geoscientificInformation"
  ],
  "modified": "2021-11-22T00:00:00Z",
  "publisher": {
    "@type": "org:Organization",
    "name": "U.S. Geological Survey"
  },
  "spatial": "-089.631599, 30.361283, -086.265765, 39.875856",
  "theme": [
    "geospatial"
  ],
  "title": "Experimental Results for Colloidal Borescope Flowmeter"
}