NED

The National Elevation Dataset (NED) is a comprehensive source of elevation data used in Geographic Information Systems (GIS), environmental studies, engineering, and land management. It provides accurate, high-resolution elevation information that represents the Earth's terrain and surface features. NED supports a wide range of applications, including terrain analysis, floodplain mapping, watershed modeling, infrastructure planning, disaster management, and natural resource conservation. By delivering consistent and standardized elevation data, it helps improve the accuracy of Digital Elevation Models (DEMs) and other geospatial analyses. Researchers, planners, engineers, and government agencies rely on NED to assess landscape characteristics, predict environmental changes, and make informed decisions. Its detailed elevation measurements enhance mapping, visualization, and spatial analysis, making it an essential resource for understanding topography, managing land and water resources, supporting sustainable development, and improving planning across local, regional, and national projects.