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  4. Terrestrial Laser Scanning Data from the Confluence of the South Yuba River and Humbug Creek, Nevada County, California, 2011-2013

Terrestrial Laser Scanning Data from the Confluence of the South Yuba River and Humbug Creek, Nevada County, California, 2011-2013

Dates

Publication Date
Time Period
2011-12-15
Time Period
2012-10-25
Time Period
2013-01-04
Time Period
2013-11-22

Citation

Howle, J.F., 2019, Terrestrial Laser Scanning Data from the Confluence of the South Yuba River and Humbug Creek, Nevada County, California, 2011-2013: U.S. Geological Survey data release, https://doi.org/10.5066/P9EOI74U.

Summary

High-resolution, terrestrial laser scanning, also known as ground-based lidar (light detection and ranging), was used to quantify the volume of mercury-contaminated sediment eroded from an outcrop of historical placer-mining debris at the confluence of the South Yuba River and Humbug Creek in the Sierra Nevada mountains, about 17 kilometers northeast of Grass Valley, California. The outcrop could not be mapped non-destructively or in sufficient detail by traditional surveying techniques. Terrestrial laser scanning was used to produce centimeter-scale, three-dimensional maps of the complex outcrop surface at the study site, which was approximately 70 meters long, 30 meters wide and 20 meters high. The outcrop surface was composed of [...]

Contacts

Point of Contact :
James F Howle, U.S. Geological Survey
Process Contact :
James F Howle
Originator :
James F Howle
Metadata Contact :
James F Howle, U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
California Water Science Center
USGS Mission Area :
Water Resources

Attached Files

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Humbug_revised_07192019.xml
Original FGDC Metadata
View 		18.83 KB application/fgdc+xml
Cliff_Dec_2011
“Cliff_Dec_2011.txt” 		156.13 MB text/plain
Cliff_Oct_2012
“Cliff_Oct_2012.txt” 		123.29 MB text/plain
Cliff_Jan_2013
“Cliff_Jan_2013.txt” 		130.85 MB text/plain
Cliff_Nov_2013
“Cliff_Nov_2013.txt” 		108.95 MB text/plain
Colluv_Dec_2011
“Colluv_Dec_2011.txt” 		859.18 MB text/plain
Colluv_Oct_2012
“Colluv_Oct_2012.txt” 		767.96 MB text/plain
Colluv_Jan_2013
“Colluv_Jan_2013.txt” 		542.16 MB text/plain
Colluv_Nov_2013
“Colluv_Nov_2013.txt” 		586.57 MB text/plain

Purpose

The study site was surveyed to determine volumetric differences in the upper erosional and lower depositional areas between surveys. Measured changes in volume for the upper erosional area (cliff area) and lower depositional area (colluvial slope) were multiplied by the corresponding sediment density so that a mass-balance relationship, between the eroded and deposited sediment during each period, could be used to estimate the amount of mercury-contaminated sediment that was transported below the base of the colluvial slope, where it could be mobilized by the South Yuba River.

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Communities

  • USGS California Water Science Center
  • USGS Data Release Products

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Provenance

Outcrop of historical placer-mining debris at the confluence of the South Yuba River and Humbug Creek in the Sierra Nevada mountains, about 17 kilometers northeast of Grass Valley, Nevada County, California. The outcrop was approximately 70 meters long, 30 meters wide and 20 meters high. Lat/Long 39.338360° -120.932792° (NAD83).

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9EOI74U

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