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Carl J Legleiter


Carl joined the U.S. Geological Survey in 2016 and has a Ph.D. in Geography from the University of California Santa Barbara.

As a member of the USGS Water Resources Mission Area Hydrologic Remote Sensing Branch, Carl conducts research on remote sensing of rivers, specifically retrieval of depth, velocity, and other channel attributes from various types of image data. Current efforts are focused on the development and testing of methods for estimating surface flow velocities from videos and image time series acquired from Uncrewed Aircraft Systems (UAS, or drones), helicopters, and moving aircraft. In addition, he is actively involved in ongoing studies seeking to advance our ability to characterize potentially harmful algal blooms (HABs) via hyperspectral imaging. Another topic of continued interest is a collaborative project with the USGS Ecosystems Mission Area to assess habitat for pallid sturgeon on the Missouri River by conducting tracer experiments. This study involves estimating concentrations of the tracer dye from remotely sensed data to better understand dispersion processes operating within the river.