An introduction to working with DEMs for hydrologic applications.
From the "Conservation Applications of LiDAR Data" series. Additional lectures, exercises and other training materials are at z.umn.edu/lidar.

Time points: 3:30 examples of hydrologic applications. 6:30 background and theory of contours, DEMS, and resolution. 12:35 - LiDAR acquistion and oversight in Minnesota. 14:15 - History of data development. 18:20 - ArcGRID file structure. 19:13 - Environment settings in ArcGIS for raster processing; 21:38 snap raster setting. 22:55 - Resampling to change resolution.

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