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

geographic information system (GIS)

Earth science; Remote sensing

A data-handling and analysis system based on sets of data distributed spatially in two dimensions. The data sets may be map oriented, when they comprise qualitative attributes of an area recorded as ...

refraction

Earth science; Remote sensing

Bending of electromagnetic rays as they pass from one medium into another when each medium has a different index of refraction.

radar cross section

Earth science; Remote sensing

A measure of the intensity of backscattered radar energy from a point target. Expressed as the area of a hypothetica surface which scatters radar equally in all directions and which would return the ...

contact print

Earth science; Remote sensing

A reproduction from a photographic negative in direct contact with photosensitive paper.

real time

Earth science; Remote sensing

Refers to images or data made available for inspection simultaneously with their acquisition.

edge enhancement

Earth science; Remote sensing

Image-processing technique that emphasizes the appearance of edges and lines.

radial relief displacement

Earth science; Remote sensing

The tendency of vertical objects to appear to learn radially away from the center of a vertical aerial photograph. Caused by the conical field of view of the camera lens.