Return to search results
Experimental Results for Colloidal Borescope Flowmeter
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.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "E. Randall Bayless",
"@type": "vcard:Contact",
"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",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://doi.org/10.5066/P9IF9JH8",
"mediaType": "application/http",
"description": "Landing page for access to the data"
},
{
"@type": "dcat:Distribution",
"title": "Original Metadata",
"format": "XML",
"mediaType": "text/xml",
"description": "The metadata original format",
"downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.5cc215ade4b09b8c0b74717b.xml"
}
]
|
| 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 |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -089.631599, 30.361283, -086.265765, 39.875856 |
| theme |
[
"Geospatial"
]
|
| title | Experimental Results for Colloidal Borescope Flowmeter |
