Abstract

Error Reduction Techniques on a Salt Marsh DEM using RTK GPS
Track: 3D and Lidar Data
Authors: Adam McClure

Accurate elevation information is a necessity for habitats under threat from sea level rise. Tidal salt marsh elevation ranges can be as little as 2 meters, demanding accurate elevation models. Using a RTK GPS dataset and local ecology, error was reduced within a LiDAR salt marsh DEM from 16 cm to 4 cm. This study outlines methods that can be applied to valuable tidal salt marsh areas to reduce elevation error, enabling accurate sea level rise projections.