Updating boundaries for large water bodies of the Coteau des Prairies using Landsat 8

Authors: Bruce Millett*, South Dakota State University
Topics: Water Resources and Hydrology, Remote Sensing, Geographic Information Science and Systems
Keywords: Wetlands, Landsat 8, ArcGIS Pro, Image classification
Session Type: Poster
Day: 4/12/2018
Start / End Time: 1:20 PM / 3:00 PM
Room: Napoleon Foyer/Common St. Corridor, Sheraton, 3rd Floor
Presentation File: Download

Large lakes and wetland boundaries of the Coteau des Prairies and surrounding region have changed since the National Wetlands Inventory (NWI) dataset was developed approximately 30 years ago. Landsat 8, a NASA and USGS collaboration, acquires global moderate-resolution measurements in the visible, near-infrared, short wave, and thermal infrared. Boundary limits for large water bodies were updated using 2016 Landsat 8 imagery with less than ten percent cloud cover. Unsupervised and supervised classification methods were used to extract water features from Landsat 8 imagery using ArcGIS Pro Imagery tools. Extracted polygon features were manually edited and overlaid with the NWI dataset. A final map was created by overlaying water body features on the 3D Elevation Program (3DEP) Digital Elevation Model (DEM).

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