Accession Number : ADP002725

Title :   Radar and Infrared Remote Sensing of Terrain, Water Resources, Arctic Sea Ice, and Agriculture,


Personal Author(s) : Biggs,A. W.

Report Date : AUG 1983

Pagination or Media Count : 22

Abstract : Radar range measurements, basic waveforms of radar systems, and radar displays are initially described. These are followed by backscatter from several types of terrain and vegetation as a function of frequency and grazing angle. Analytical models for this backscatter include the facet models of radar return, with range-angle, velocity-range, velocity-angle, range, velocity, and angular only discriminations. Several side-looking airborne radar (SLAR) geometries are presented. Radar images of Arctic sea ice, fresh water lake ice, cloud-covered terrain, and related areas are presented to identify applications of radar imagery. Volume scatter models are applied to radar imagery from alpine snowfields. Short pulse ice thickness (SPIT) radar for subsurface probes is discussed in fresh-water ice and sea ice detection. Infrared scanners, including multispectral, are described in the second part of this paper. Diffusion of cold water into a river, Arctic sea ice, power plant discharges, volcanic heat, and related areas are presented in thermal imagery.

Descriptors :   *Synthetic aperture radar, *Infrared detectors, *Scientific satellites, *Remote detectors, *Sea ice, Side looking radar, Radar images, Mathematical models, Radar pulses, Lakes, Infrared radiation, Subsurface, Fresh water, Agriculture, Grazing, Probes, Frequency, Snowfields, Low temperature, Volcanoes, Functions, Arctic Ocean, Vegetation, Diffusion, Mountains, Ice, Angles, Waveforms

Distribution Statement : APPROVED FOR PUBLIC RELEASE