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  4. Low-altitude aerial imagery from unmanned aerial systems (UAS) at select locations over the Potomac River, October 2019
  5. Aerial Imagery from unmanned aerial systems (UAS) flights and ground control points: Potomac River in Brunswick, Maryland on October 22, 2019

Aerial Imagery from unmanned aerial systems (UAS) flights and ground control points: Potomac River in Brunswick, Maryland on October 22, 2019

Dates

Publication Date
Time Period
2019-10-22

Citation

Cashman, M.J., Brosnahan, S.M., Caldwell, S.H., Staub, L.E., DeWitt, J., Young, J., Duda, J., and Griese, A.J., 2020, Low-altitude aerial imagery from unmanned aerial systems (UAS) at select locations over the Potomac River, October 2019: U.S. Geological Survey data release, https://doi.org/10.5066/P970EQ7D.

Summary

These digital images were taken over an area of the Potomac River in Brunswick, Maryland using 3DR Solo unmanned aircraft systems (UAS) on October 22, 2019. These images were collected for the purpose of evaluating UAS assessment of river habitat data such as water depth, substrate type, and water clarity. Each UAS was equipped with a Ricoh GRII digital camera for natural color photos, used to produce digital elevation models and ortho images, or FLIR Vue Pro R 640 13mm radiometric thermal camera that provides temperature data embedded in every pixel. Some photographs contain black and white targets used as ground control points (GCPs), which were surveyed by a field crew with a high-precision (GNSS) Global Navigation Satellite System [...]

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Contacts

Point of Contact :
Matthew J Cashman
Originator :
Matthew J Cashman, Sandra M Brosnahan, Samuel H Caldwell, Leah E Staub, Jessica D Dewitt, John Young, James M Duda, A J Griese
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase

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Purpose

These images from an Unmanned Aerial System (UAS) were collected to establish capabilities and limitations for using new technology for mapping and measuring riverine environments. This was one component of methodological comparison field campaign conducted in conjunction with a topobathymetric lidar collection of the Potomac River Corridor in late 2019. Imagery were collected for the purpose of evaluating UAS assessment of river habitat data such as water depth, substrate type, and water clarity. Color images were collected with resolution and overlap for photogrammetry and creation of digital elevation models and orthomosaics. Comparisons will be made to other data derived from topobathymetric lidar and more established technologies such as real-time-kinematic (RTK) GPS, acoustic doppler current profilers (ADCP), and multi-beam echo sounders.
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  • USGS Maryland, Delaware, and the District of Columbia Water Science Center

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