Abstract

Modifying LAS Dataset Processing for Enhanced Hydrologic Modeling
Track: 3D and Lidar Data
Authors: Janet Gritzner, Bruce Millett

GIS technologies provide new approaches to deriving metrics for developing and refining models of wetland water storage and catchment drainage. LAS elevation data at .9 m point spacing effectively identified depressional features of the glaciated Prairie Pothole Region, but failed to resolve the finer morphology of wetland basins. A GPS survey collected more accurate elevation information on wetlands in SD to insert as corrective elevations into LIDAR processing and hydrologic modeling.