This project will create a high accuracy elevation dataset - critical for effectively planning and implementing water quality projects - for the state of Minnesota using LiDAR (Light Detection and Ranging) and geospatial mapping technologies. Although some areas of the state have been mapped previously, many counties remain unmapped or have insufficient or inadequate data. This multi-year project, to be completed in 2012, is a collaborative effort of Minnesota's Digital Elevation Committee and partners with county surveyors to ensure accuracy with ground-truthing.
Turbidity and sediment yield from the Le Sueur River watershed to the Minnesota River is a problem. Studies have shown that 200,000 tons/yr come from non-field sources and 25,000 tons/yr come from field sources. With this grant we will develop strategies to reduce sediment yield from the Freeborn County Cobb River Ditch subwatershed.