Remote sensing

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

Wien's displacement law

Earth science; Remote sensing

Describes the shift of the radiant power peak to shorter wavelengths as temperature increases.

scanner

Earth science; Remote sensing

An imaging system in which the IFOV of one or more detectors is swept across the terrain.

kinetic temperature

Earth science; Remote sensing

Internal temperature of an object determined by random molecular motion. Kinetic temperature is measured with a contact thermometer.

probability density function (PDF)

Earth science; Remote sensing

A function indicating the relative frequency with which any measurement may be expected to occur. In remote sensing it is represented by the histogram of DN in one band for a scene.

photographic IR

Earth science; Remote sensing

Short-wavelength portion (0. 7 to 0. 9 m) of the IR band that is detectable by IR color film or IR black-and-white film.

geostationary orbit

Earth science; Remote sensing

An orbit at 41 000 km in the direction of the Earth's rotation, which matches speed so that a satellite remains over a fixed point on the Earth's surface.