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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
Scatterometer
Earth science; Remote sensing
Nonimaging radar device that quantitatively records backscatter of terrain as a function of incidence angle.
Kernel
Earth science; Remote sensing
Two-dimensional array of digital numbers used in digital filtering.
Apparent thermal inertia (ATI)
Earth science; Remote sensing
An approximation of thermal inertia calculated as one minus albedo divided by the difference between daytime and nighttime radiant temperatures.
Minus-blue photographs
Earth science; Remote sensing
Black-and-white photographs acquired using a philtre that removes blue wavelengths to produce higher spatial resolution.
Focal length
Earth science; Remote sensing
In cameras, the distance from the optical centre of the lens to the plane at which the image of a very distant object is brought into focus.
Registration
Earth science; Remote sensing
Process of superposing two or more images or photographs so that equivalent geographic points coincide.
Emission
Earth science; Remote sensing
Process by which a body radiates electromagnetic energy. Emission is determined by kinetic temperature and emissivity.
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