Tag Archives: GIS

Remote Sensing and GIS

REMOTE SENSING AND GIS What is remote sensing? Remote sensing is the science of obtaining information about objects or areas from a distance, typically from aircraft or satellites. Remote sensors collect data by detecting the energy that is reflected from Earth. These sensors can be on satellites or mounted on aircraft.  Remote sensors can be either passive or active. Passive sensors respond to external stimuli. They record radiation that is reflected from Earth’s surface, usually from the sun. Because of this, passive sensors can only Continue reading →