High Tech Trout: Using Mapping and Data to Identify Barriers to Fish Passage

Identifying stream barriers in the form of inadequate culverts and undocumented low-head dams can be very time and resource intensive for field crews. Join Chris Brehme, TU’s GIScience Director, as he discusses a new cost-saving measure, using fine-scale elevation data captured from airplanes (LiDAR) to map and identify otherwise hidden barriers to fish passage.