Subject:
Remote sensing is the science of acquiring data without being in contact with it. For this reason, a major part of this event involves the processing of images and analyzing them to come to a conclusion. INSTRUMENTS USED RADAR: short for Radio Detection and Ranging. It transmits radio waves, which are scattered and reflected when they come into contact with something. They can pass through water droplets and are generally used with active remote sensing systems. Radar is good for locating objects and measuring elevation. LIDAR: short for Light Detection and Ranging. It is similar to RADAR but uses laser pulses instead of radio waves. TM: stands for Thematic Mapper. It was introduced in the Landsat program and involves seven image data bands that scan along a ground track.
