remote sensing
ACQUISITION OF INFORMATION ABOUT AN OBJECT OR PHENOMENON WITHOUT MAKING PHYSICAL CONTACT WITH THE OBJECT, ESPECIALLY THE EARTH
Remote Sensing; Remote sensor; Earth remote sensing; Passive remote sensing; Remote-sensing; Infrared remote sensing; Remote-Sensing Image; Remote sensing satellites; History of remote sensing; Acoustic remote sensing; Remote sensing technology; Applications of remote sensing; Active remote sensing
¦ noun the scanning of the earth by satellite or high-flying aircraft in order to obtain information about it.