The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is the only high spatial resolution instrument aboard the Terra satellite, capturing images of Earth in 14 different wavelengths of the electromagnetic spectrum, from visible to thermal infrared light. ASTER provides a Global Digital Elevation Model (GDEM) of Earth's land surface at approximately 30-meter spatial resolution. ASTER GDEM is available for download on Earthdata Search.
We are in the process of migrating all NASA Earth science data sites into Earthdata from now until end of 2026. Not all NASA Earth science data and resources will appear here until then. Thank you for your patience as we make this transition.
Read about the Web Unification Project