Synthetic Aperture Radar Interferometry to Measure Earth’s Surface Topography and Its Deformation
Top Cited Papers
- 1 May 2000
- journal article
- Published by Annual Reviews in Annual Review of Earth and Planetary Sciences
- Vol. 28 (1) , 169-209
- https://doi.org/10.1146/annurev.earth.28.1.169
Abstract
Synthetic aperture radar interferometry (InSAR) from Earth-orbiting spacecraft provides a new tool to map global topography and deformation of the Earth’s surface. Radar images taken from slightly different viewing directions allow the construction of digital elevation models of meter-scale accuracy. These data sets aid in the analysis and interpretation of tectonic and volcanic landscapes. If the Earth’s surface deformed between two radar image acquisitions, a map of the surface displacement with tens-of-meters resolution and subcentimeter accuracy can be constructed. This review gives a basic overview of InSAR for Earth scientists and presents a selection of geologic applications that demonstrate the unique capabilities of InSAR for mapping the topography and deformation of the Earth.Keywords
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