Glossary for Geospatial Science

electromagnetic spectrum:� �The entire spectrum, considered as a continuum, of all kinds of electric, magnetic, and visible radiation, from gamma rays having a wavelength of 0.001 angstrom to long waves having a wavelength of more than 1 million km�� (Random House).� Remote sensing devices typically record electromagnetic bands in the region of optical light and may include the near infrared.� (See also: spectral band)