Hydrologic enforcement of lidar DEMs

  title={Hydrologic enforcement of lidar DEMs},
  author={Sandra Poppenga and Bruce Worstell and Jeffrey J. Danielson and John C. Brock and G A Orville Evans and Hans Karl Heidemann},
Hydrologic-enforcement (hydro-enforcement) of light detection and ranging (lidar)-derived digital elevation models (DEMs) modifies the elevations of artificial impediments (such as road fills or railroad grades) to simulate how man-made drainage structures such as culverts or bridges allow continuous downslope flow. Lidar-derived DEMs contain an extremely high level of topographic detail; thus, hydro-enforced lidar-derived DEMS are essential to the U.S. Geological Survey (USGS) for complex… CONTINUE READING