GIS Dictionary

[satellite imaging] The range of wavelengths that an imaging system can detect.

[physics] The pattern of electromagnetic radiation that identifies a chemical or compound. Materials can be distinguished from one another by

[physics] A photometer that measures the intensity of electromagnetic radiation as a function of its frequency. Spectrophotometers are usually used

[physics] The scientific study of how different chemicals and other substances absorb and reflect different parts of the electromagnetic spectrum.

[geolocating] In geocoding, the degree to which the spelling variation of a street name is allowed during a search for

[Euclidean geometry] A three-dimensional shape whose center is equidistant from every point on its surface, made by revolving a circle

[coordinate systems] A reference system using positions of latitude and longitude to define the locations of points on the surface

1 [Euclidean geometry] A three-dimensional shape obtained by rotating an ellipse about its minor axis, resulting in an oblate spheroid,

1 [statistics] An anomalous data point that protrudes above or below an interpolated surface. 2 [data capture] An overshoot line

In mathematics, a piecewise polynomial function used to approximate a smooth curve in a line or surface.

[spatial statistics use for geostatistics] An interpolation method in which cell values are estimated using a mathematical function that minimizes