10 Terms
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Remote sensing
The process of using aerial sensor technologies to detect and classify objects on Earth both on the surface, and in the atmosphere and oceans by means of propagated signals.
Industry: Earth science
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Remote sensing
return
Earth science; Remote sensing
In radar, a pulse of microwave energy reflected by the terrain and received at the radar antenna. The strength of a return is referred to as return intensity.
target
Earth science; Remote sensing
Object on the terrain of specific interest in a remote sensing investigation.
near range
Earth science; Remote sensing
Refers to the portion of a radar image closest to the aircraft or satellite flight path.
wavelength
Earth science; Remote sensing
Distance between successive wave crests or other equivalent points in a harmonic wave.
optical filter
Earth science; Remote sensing
A material that, by absorption or reflection, selectivity modifies the radiation transmitted through an optical system.
active remote sensing
Earth science; Remote sensing
Remote sensing methods that provide their own source of electromagnetic radiation to illuminate the terrain. Radar is one example.
cones
Earth science; Remote sensing
Receptors in the retina which are sensitive to color. There are cones sensitive to the red, green, and blue components of light.
