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

Calorie

Earth science; Remote sensing

Amount of heat required to raise the temperature of 1g of water by 1¡C.

Rods

Earth science; Remote sensing

The receptors in the retina that are sensitive to brightness variations.

A non-imaging device that records the time of radar returns from vertically beneath a platform to estimate the distance to and hence the elevation of the surface; carried by Seasat and the EAS-ERS-1 ...

Principal component analysis

Earth science; Remote sensing

The analysis of covariance in a multiple data set so that the data can be projected as additive combinations on to new axes, which express different kinds of correlation among the data.

Geostationary Operational Environmental Satellite

Earth science; Remote sensing

A NOAA satellite that acquires visible and thermal IR images for meteorologic purposes.

Point spread function (PSF)

Earth science; Remote sensing

The image of a point source of radiation, such as a star, collected by an imaging device. A measure of the spatial fidelity of the device.

Chlorosis

Earth science; Remote sensing

Yellowing of plant leaves resulting from an imbalance in the iron metabolism caused by excess concentrations of copper, zinc, manganese, or other elements in the plant.