Spaceborne Imaging Radar: Geologic and Oceanographic Applications

  title={Spaceborne Imaging Radar: Geologic and Oceanographic Applications},
  author={Charles Elachi},
  pages={1073 - 1082}
  • C. Elachi
  • Published 5 September 1980
  • Geology, Environmental Science, Mathematics
  • Science
Synoptic, large-area radar images of the earth's land and ocean surface, obtained from the Seasat orbiting spacecraft, show the potential for geologic mapping and for monitoring of ocean surface patterns. Structural and topographic features such as lineaments, anticlines, folds and domes, drainage patterns, stratification, and roughness units can be mapped. Ocean surface waves, internal waves, current boundaries, and large-scale eddies have been observed in numerous images taken by the Seasat… 
Shuttle Imaging Radar Experiment
The shuttle imaging radar (SIR-A) acquired images of a variety of the earth's geologic areas covering about 10 million square kilometers. Structural and geomorphic features such as faults, folds,
Space Imaging Radar in Planetary Exploration and Earth Observation
Spaceborne imaging radars are becoming key tools for mapping Earth and planetary surfaces and near subsurface. Developments in the past decade are leading to capabilities for three-dimensional
Seasat-Satellite Investigation of the Structure of Western Nebraska and Its Application to the Evaluation of Geothermal Resources
  • J. Stix
  • Geology, Environmental Science
  • 1981
Seasat synthetic aperture radar (SAR) satellite imagery was used to interpret the structural framework and, indirectly, the geothermal potential of an area in western Nebraska. Lineaments were mapped
Spaceborne radar observations: A guide for Magellan radar-image analysis
Geologic analyses of spaceborne radar images of Earth are reviewed and summarized with respect to detecting, mapping, and interpreting impact craters, volcanic landforms, eolian and subsurface
Remote sensing of the Earth with spaceborne imaging radars
Spaceborne imaging sensors in the visible, infrared and passive microwave have been used to observe and study the Earth's surface since the early stages of the space program. More recently, active
Seasat views North America, the Caribbean, and Western Europe with imaging radar
Forty-one digitally correlated Seasat synthetic-aperture radar images of land areas in North America, the Caribbean, and Western Europe are presented to demonstrate this microwave orbital imagery.
Earth Resources Observation With The Shuttle Imaging Radar
  • C. Elachi
  • Environmental Science, Mathematics
    Other Conferences
  • 1981
In order to fully understand the radar signature of different surface features and covers, observations must be acquired with a variety of sensor parameters (i.e., frequency, polarization, and
Spaceborne imaging radar research in the 90's
  • C. Elachi
  • Environmental Science, Mathematics
  • 1987
Synthetic Aperture Radar Imaging from an Inclined Geosynchronous Orbit
Images of Earth can be produced with an assumed synthetic aperture radar (SAR) on a satellite platform undergoing a nutating relative motion from geosynchronous altitude. From a 50° inclined circular
Spaceborne synthetic-aperture imaging radars: Applications, techniques, and technology
In the last four years, the first two Earth-orbiting, space-borne, synthetic-aperture imaging radars (SAR) were successfully developed and operated. This was a major achievement in the development of


A note on SAR imagery of the ocean
An example of SAR imagery of the ocean surface including the Gulf Stream Boundary reported by Moskowitz [1] is used to discuss potential mechanisms of SAR image formation of the ocean. It is pointed
The effect of orbital motions on synthetic aperture radar imagery of ocean waves
The formation of wave-like patterns in synthetic aperture radar (SAR) images of the ocean surface caused by orbital motions is investigated. Furthermore, the degradation in azimuthal resolution due
Models of radar imaging of the ocean surface waves
A number of models which would explain ocean wave imagery taken with a synthetic aperture imaging radar are analyzed analytically and numerically. Actual radar imagery is used to support some
Ocean wave patterns under hurricane gloria: observation with an airborne synthetic-aperture radar.
Surface imagery of ocean waves under Hurricane Gloria (September 1976) has been obtained with an airborne synthetic-aperture imaging radar and direct observations made it possible to derive the wave patterns in the region around a hurricane eye.
Seasat Mission Overview
During some 3 months of orbital operations, Seasat collected a unique set of global synoptic data on ocean winds, waves, temperature, and topography, indicating that most of the mission's proof-of-concept objective—the demonstration of nearly all-weather microwave surveillance of the world's oceans—will be met.
Variations in surface roughness within Death Valley, California: Geologic evaluation of 25-cm-wavelength radar images
Images — processed from 25-cm wavelength, side-looking airborne radar — of the salt flats and gravel fans on the floor of Death Valley, California, show distinctive variations in radar backscatter
On the interaction of surface and internal waves
The steady-state interaction between surface waves and long internal waves is investigated theoretically using the radiation stress concepts derived by Longuet-Higgins & Stewart (1964) (or Phillips