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What Is a Digital Elevation Model (DEM)?
A Digital Elevation Model (DEM) is a digital representation of elevation across the Earth’s surface. By converting terrain height…
What Is Synthetic Aperture Radar (SAR)?
Synthetic Aperture Radar (SAR) is a remote sensing technology that uses microwave radar signals to observe Earth’s surface. Unlike…
Mapping Volcanic Distribution from Satellite Imagery
Volcanic eruptions can rapidly change the landscape around a volcano. Ash, lava, and other volcanic materials may cover large…