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Web Tools

Web Tools

Topographic Change Viewer

The USGS has developed a national inventory of significant topographic changes based on seamless multitemporal elevation data and land cover data. The National Elevation Dataset (NED) and the Shuttle Radar Topography Mission (SRTM) data form a unique pair of seamless elevation datasets that can be used to detect and analyze 20th century topographic surface changes in the United States.

EarthExplorer

The EarthExplorer (EE) user interface is an online search, discovery, and ordering tool developed by the United States Geological Survey (USGS).  EE supports the searching of satellite, aircraft, and other remote sensing inventories through interactive and textual-based query capabilities.