Water Volume and Sediment Volume and Density in Lake Linganore between Boyers Mill Road Bridge and Bens Branch, Frederick County, Maryland (2012)
To assist in understanding sediment loadings and the
management of water resources, a bathymetric survey was
conducted in the part of Lake Linganore between Boyers Mill
Road Bridge and Bens Branch in Frederick County, Maryland.
The bathymetric survey was performed in January 2012 by
the U.S. Geological Survey, in cooperation with the City of
Frederick and Frederick County. A separate, but related, field
effort to collect 18 sediment cores was conducted in March
and April 2012. Depth and location data from the bathymetric
survey and location data for the sediment cores were compiled
and edited by using geographic information system (GIS)
software. A three-dimensional triangulated irregular network
(TIN) model of the lake bottom was created to calculate the
volume of stored water in the reservoir. Large-scale topographic maps of the valley prior to inundation in 1972 were
provided by the Frederick County Division of Utilities and
Solid Waste Management and digitized for comparison with
current (2012) conditions in order to calculate sediment
volume. Cartographic representations of both water depth and
sediment accumulation were produced, along with an accuracy assessment for the resulting bathymetric model. Vertical
accuracies at the 95-percent confidence level for the collected
data, the bathymetric surface model, and the bathymetric
contour map were calculated to be 0.64 feet (ft), 1.77 ft, and
2.30 ft, respectively. A dry bulk sediment density was calculated for each of the 18 sediment cores collected during March
and April 2012, and used to determine accumulated sediment
mass.
Water-storage capacity in the study area is 110 acre-feet
(acre-ft) at a full-pool elevation 308 ft above the National
Geodetic Vertical Datum of 1929, whereas total sediment
volume in the study area is 202 acre-ft. These totals indicate a
loss of about 65 percent of the original water-storage capacity
in the 40 years since dam construction. This corresponds to an
average rate of sediment accumulation of 5.1 acre-ft per year
since Linganore Creek was impounded.
Sediment thicknesses ranged from 0 to 16.7 ft. Sediment
densities ranged from 0.38 to 1.08 grams per cubic centimeter,
and generally decreased in the downstream direction. The total
accumulated-sediment mass was 156,000 metric tons between
1972 and 2012.
1117786632
management of water resources, a bathymetric survey was
conducted in the part of Lake Linganore between Boyers Mill
Road Bridge and Bens Branch in Frederick County, Maryland.
The bathymetric survey was performed in January 2012 by
the U.S. Geological Survey, in cooperation with the City of
Frederick and Frederick County. A separate, but related, field
effort to collect 18 sediment cores was conducted in March
and April 2012. Depth and location data from the bathymetric
survey and location data for the sediment cores were compiled
and edited by using geographic information system (GIS)
software. A three-dimensional triangulated irregular network
(TIN) model of the lake bottom was created to calculate the
volume of stored water in the reservoir. Large-scale topographic maps of the valley prior to inundation in 1972 were
provided by the Frederick County Division of Utilities and
Solid Waste Management and digitized for comparison with
current (2012) conditions in order to calculate sediment
volume. Cartographic representations of both water depth and
sediment accumulation were produced, along with an accuracy assessment for the resulting bathymetric model. Vertical
accuracies at the 95-percent confidence level for the collected
data, the bathymetric surface model, and the bathymetric
contour map were calculated to be 0.64 feet (ft), 1.77 ft, and
2.30 ft, respectively. A dry bulk sediment density was calculated for each of the 18 sediment cores collected during March
and April 2012, and used to determine accumulated sediment
mass.
Water-storage capacity in the study area is 110 acre-feet
(acre-ft) at a full-pool elevation 308 ft above the National
Geodetic Vertical Datum of 1929, whereas total sediment
volume in the study area is 202 acre-ft. These totals indicate a
loss of about 65 percent of the original water-storage capacity
in the 40 years since dam construction. This corresponds to an
average rate of sediment accumulation of 5.1 acre-ft per year
since Linganore Creek was impounded.
Sediment thicknesses ranged from 0 to 16.7 ft. Sediment
densities ranged from 0.38 to 1.08 grams per cubic centimeter,
and generally decreased in the downstream direction. The total
accumulated-sediment mass was 156,000 metric tons between
1972 and 2012.
Water Volume and Sediment Volume and Density in Lake Linganore between Boyers Mill Road Bridge and Bens Branch, Frederick County, Maryland (2012)
To assist in understanding sediment loadings and the
management of water resources, a bathymetric survey was
conducted in the part of Lake Linganore between Boyers Mill
Road Bridge and Bens Branch in Frederick County, Maryland.
The bathymetric survey was performed in January 2012 by
the U.S. Geological Survey, in cooperation with the City of
Frederick and Frederick County. A separate, but related, field
effort to collect 18 sediment cores was conducted in March
and April 2012. Depth and location data from the bathymetric
survey and location data for the sediment cores were compiled
and edited by using geographic information system (GIS)
software. A three-dimensional triangulated irregular network
(TIN) model of the lake bottom was created to calculate the
volume of stored water in the reservoir. Large-scale topographic maps of the valley prior to inundation in 1972 were
provided by the Frederick County Division of Utilities and
Solid Waste Management and digitized for comparison with
current (2012) conditions in order to calculate sediment
volume. Cartographic representations of both water depth and
sediment accumulation were produced, along with an accuracy assessment for the resulting bathymetric model. Vertical
accuracies at the 95-percent confidence level for the collected
data, the bathymetric surface model, and the bathymetric
contour map were calculated to be 0.64 feet (ft), 1.77 ft, and
2.30 ft, respectively. A dry bulk sediment density was calculated for each of the 18 sediment cores collected during March
and April 2012, and used to determine accumulated sediment
mass.
Water-storage capacity in the study area is 110 acre-feet
(acre-ft) at a full-pool elevation 308 ft above the National
Geodetic Vertical Datum of 1929, whereas total sediment
volume in the study area is 202 acre-ft. These totals indicate a
loss of about 65 percent of the original water-storage capacity
in the 40 years since dam construction. This corresponds to an
average rate of sediment accumulation of 5.1 acre-ft per year
since Linganore Creek was impounded.
Sediment thicknesses ranged from 0 to 16.7 ft. Sediment
densities ranged from 0.38 to 1.08 grams per cubic centimeter,
and generally decreased in the downstream direction. The total
accumulated-sediment mass was 156,000 metric tons between
1972 and 2012.
management of water resources, a bathymetric survey was
conducted in the part of Lake Linganore between Boyers Mill
Road Bridge and Bens Branch in Frederick County, Maryland.
The bathymetric survey was performed in January 2012 by
the U.S. Geological Survey, in cooperation with the City of
Frederick and Frederick County. A separate, but related, field
effort to collect 18 sediment cores was conducted in March
and April 2012. Depth and location data from the bathymetric
survey and location data for the sediment cores were compiled
and edited by using geographic information system (GIS)
software. A three-dimensional triangulated irregular network
(TIN) model of the lake bottom was created to calculate the
volume of stored water in the reservoir. Large-scale topographic maps of the valley prior to inundation in 1972 were
provided by the Frederick County Division of Utilities and
Solid Waste Management and digitized for comparison with
current (2012) conditions in order to calculate sediment
volume. Cartographic representations of both water depth and
sediment accumulation were produced, along with an accuracy assessment for the resulting bathymetric model. Vertical
accuracies at the 95-percent confidence level for the collected
data, the bathymetric surface model, and the bathymetric
contour map were calculated to be 0.64 feet (ft), 1.77 ft, and
2.30 ft, respectively. A dry bulk sediment density was calculated for each of the 18 sediment cores collected during March
and April 2012, and used to determine accumulated sediment
mass.
Water-storage capacity in the study area is 110 acre-feet
(acre-ft) at a full-pool elevation 308 ft above the National
Geodetic Vertical Datum of 1929, whereas total sediment
volume in the study area is 202 acre-ft. These totals indicate a
loss of about 65 percent of the original water-storage capacity
in the 40 years since dam construction. This corresponds to an
average rate of sediment accumulation of 5.1 acre-ft per year
since Linganore Creek was impounded.
Sediment thicknesses ranged from 0 to 16.7 ft. Sediment
densities ranged from 0.38 to 1.08 grams per cubic centimeter,
and generally decreased in the downstream direction. The total
accumulated-sediment mass was 156,000 metric tons between
1972 and 2012.
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Water Volume and Sediment Volume and Density in Lake Linganore between Boyers Mill Road Bridge and Bens Branch, Frederick County, Maryland (2012)
Water Volume and Sediment Volume and Density in Lake Linganore between Boyers Mill Road Bridge and Bens Branch, Frederick County, Maryland (2012)
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Product Details
| BN ID: | 2940148903635 |
|---|---|
| Publisher: | ReadCycle |
| Publication date: | 12/21/2013 |
| Sold by: | Barnes & Noble |
| Format: | eBook |
| File size: | 2 MB |
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