Encyclopedia of Planetary Landforms

2015 Edition
| Editors: Henrik Hargitai, Ákos Kereszturi

Radar Feature

  • Henrik HargitaiEmail author
  • Ákos Kereszturi
  • Flora Paganelli
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-3134-3_290


Any region on a geologic surface that shows characteristic physical or dielectric properties, different from that of the surroundings and/or the global average, which are identified through the interaction between the surface and the radar signal.

The radar signal produces a reflected signal, whose amplitudes and polarizations depend upon the relative geometry of the feature and the dielectric properties of the media.


Related Terms

Microwave imaging.


Any surface feature discernible on radar images. A radar feature is characterized by the portion of reflected radar signal due to a physical roughness or topographical change of the surface or a compositional change between terrain units in a geologic surface.


Many landform types have distinct radar signatures. Rough mountains, blocky or disrupted lava flows (Harmon et al. 2012) or blocky impact ejecta are typically radar-bright, while smooth surfaces, e.g., lakes, or surfaces...
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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Henrik Hargitai
    • 1
    Email author
  • Ákos Kereszturi
    • 2
  • Flora Paganelli
    • 3
  1. 1.NASA Ames Research Center/NPPMoffett FieldUSA
  2. 2.Konkoly Thege Miklos Astronomical InstituteResearch Centre for Astronomy and Earth SciencesBudapestHungary
  3. 3.Spatial Sciences Institute, Allan Hancock FoundationUniversity of Southern CaliforniaLos AngelesUSA