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  3. Field measurements of flow velocity and optical image sequences acquired from the Salcha and Tanana Rivers in Alaska in 2018 and 2019 and used for particle image velocimetry (PIV)
  4. High frame rate image sequence from the Tanana River, Alaska, July 24, 2019, for Particle Image Velocimetry

High frame rate image sequence from the Tanana River, Alaska, July 24, 2019, for Particle Image Velocimetry

Dates

Acquisition
2019-07-24

Citation

Legleiter, C.J., and Kinzel, P.J., 2020, Field measurements of flow velocity and optical image sequences acquired from the Salcha and Tanana Rivers in Alaska in 2018 and 2019 and used for particle image velocimetry (PIV): U.S. Geological Survey data release, https://doi.org/10.5066/P9IJ20O4.

Summary

This data release consists of a sequence of optical images extracted from a high frame rate video and used to derive remotely sensed estimates of surface flow velocity via particle image velocimetry (PIV). These data were acquired from the Tanana River near Nenana, Alaska, on July 24, 2019, along with field measurements of flow velocity used to assess the accuracy of image-derived velocity estimates. The images were obtained using a Zenmuse X5 video camera deployed within a Meeker mount attached to the nose of a Robinson R44 helicopter. The original video was recorded at 30 frames per second while the helicopter hovered in a fixed location approximately 600 m above the river, but the image sequence was extracted at a rate of 10 [...]

Contacts

Author :
Carl J Legleiter, Paul J Kinzel
Publisher :
United States Geological Survey
Other :
USGS ScienceBase Team
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

Click on title to download individual files attached to this item.

TananaIamgesMetadata.xml
“Metadata describing the data and how it was obtained and processed.”
Original FGDC Metadata
View 		16.26 KB application/fgdc+xml

“Zip archive containing geo-referenced TIF image sequence and .tfw world files.” 		3.08 GB application/zip
TananaExampleImage.JPG
“Example image extracted from video of the Tanana River used to perform PIV.” 		thumbnail 36.92 KB image/jpeg

Material Request Instructions

For questions concerning this data set, please contact:

Dr. Carl J. Legleiter - cjl@usgs.gov, 303-271-3651
Geomorphology and Sediment Transport Laboratory
United States Geological Survey
4620 Technology Drive, Suite #400
Golden, CO 80403

Purpose

The purpose of this study was to assess the feasibility of inferring flow velocities from optical image sequences acquired from a helicopter hovering above the river by tracking water surface features via Particle Image Velocimetry (PIV) and to develop a modular workflow for performing this type of analysis. Remote sensing of flow velocity could provide a more efficient, cost-effective alternative to conventional field-based methods of measuring velocity and thus become an important component of non-contact approaches to streamgaging. Along with field measurements of flow velocity used for accuracy assessment, these data were used to assess the potential to estimate surface flow velocities in sediment-laden rivers from helicopter-based, hovering image sequences using particle image velocimetry (PIV) techniques.

Rights

Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Example image extracted from video of the Tanana River used to perform PIV.
Example image extracted from video of the Tanana River used to perform PIV.

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Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier 10.5066/P9IJ20O4

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