Unmanned aircraft flights to monitor erosion on Missouri River
LOWER BRULE, S.D. (AP) - The U.S. Geological Survey and the Lower Brule Sioux Tribe will be using unmanned aircraft to take another look at Missouri River bank erosion on the reservation.
The first round of flights along the seven-mile stretch was conducted in August 2011. Results from the Aug 21-23 flights can be directly compared to the 2011 flight results to monitor changes along the bank.
USGS scientist Kathy Neitzert says results will be analyzed to investigate the location and severity of erosion, and the lasting impacts of cultural and environmental losses.
The tribe estimates that the reservation is losing about eight feet of shoreline per year in some locations. It will use the results to gather highly accurate baseline data on the shoreline.
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