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

Digital display

Earth science; Remote sensing

A form of data display in which values are shown as arrays of numbers.

Real time

Earth science; Remote sensing

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

Geographic information system (GIS)

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 ...

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 ...

Variance

Earth science; Remote sensing

A measure of the dispersion of the actual values of a variable about its mean. It is the mean of the squares of all the deviations from the mean value of a range of data.