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.
Find Related Datasets
Search by Tags
Click any tag below to search for similar datasets
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| 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 |
