Image taken from a UAS showing the non-toxic red dye used in the Missouri River dye-trace assessment

Image taken from a UAS showing the non-toxic red dye used in the Missouri River dye-trace assessment 

The NUSO, Columbia Environmental Research Center, U.S. Army Corps of Engineers, and Missouri University of Science and Technology researchers conducted a Missouri River dye-trace assessment in May 2021 to support natural hazards research of high river flow events and associated effects on endangered species.