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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.

Contributors in Remote sensing

Remote sensing

negative photograph

Earth science; Remote sensing

Photograph on film or paper in which the relationship between bright and dark tones is the reverse of that of the features on the terrain.

digital number (DN)

Earth science; Remote sensing

Value assigned to a pixel in a digital image.

Tracking and Data Relay Satellite (TDRS)

Earth science; Remote sensing

Geostationary satellite used to communicate between ground receiving stations and satellite such as Landsat.

thermal model

Earth science; Remote sensing

Mathematical expression that relates thermal and other physical properties of a material to its temperature. Models may be used to predict temperature for given properties and conditions.

Laplacian filter

Earth science; Remote sensing

A form of nondirectional digital filter.

Mercury

Earth science; Remote sensing

U. S. program of one-man, earth-orbiting spacecraft in 1962 and 1963.

roughness

Earth science; Remote sensing

In radar, the average vertical relief of a small-scale irregularities of the terrain surface. Also called surface roughness.

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