Authors: Milena Janiec Grygo*, U.S. Geological Survey
Topics: Remote Sensing, Applied Geography, Geographic Information Science and Systems
Keywords: airborne lidar, remote sensing, the National Map
Session Type: Virtual Paper
Start / End Time: 11:10 AM / 12:25 PM
Room: Virtual 41
Presentation File: No File Uploaded
There has been a growing interest in research based on data derived from high resolution digital elevation models (DEMs) originated from airborne collected point cloud. Topographic variation informs physical and human spatial research; for example, in combined socio-environmental approaches to vulnerability. Publicly available geospatial data, including elevation models, serve as an important resource to derive slope and terrain curvatures and represent other topologic complexities in building models and visual representations of physical environment and its impacts. This paper discusses how the U.S. Geological Survey (USGS) National Geospatial Program (NGP) provides free, publicly available geospatial data as a key part of its mission as the United States national civilian mapping organization. This paper introduces the availability of point cloud collected by discrete, multiple returns lidar and derived DEMs to the public through the resources of the National Map program and shares ideas on how to incorporate these data into classroom or research.