• Dr. Govind Apparao Karhale

Remote sensing is the phenomenon of obtaining information about an object by a sensor that is not in direct contact with the target of investigation. Any photography is a kind of remote sensing. To cover large areas from which information is required, we have to take photograph from larger distances. Aerial photography was first introduced in World War I for military uses. Now the more advanced technology of satellite imagery has emerged. Remote sensing refers to the activities of obtaining information about an object by a sensor without being in direct contact with the object. Radio communication or space communication uses electromagnetic waves to carry information over a very long distance without use of wires. Radio waves ranging from 100 KHz to 300 GHz can be used for communication purpose. In case of electromagnetic wave, at any point of propagation, electric field and magnetic field are perpendicular to each other. Electromagnetic waves propagate through atmosphere above ground and through ionized particles above 100km and up to 400km. The lower layer is called troposphere and the ionized layer is called ionosphere. There are three ways by which radio waves propagate from transmitting antenna to the receiving antenna through; a) Ground wave propagation b) Sky wave propagation c) Space wave propagation. In the present paper our major focus to discuss the various applications of Remote sensing such as, Costal studies, Natural disaster, Agricultural and forestry, Archaeology etc.

Remote sensing, Radio communication, Space communication, Ground Wave, Meteorology, Geological sensing etc.

"Applications of Remote Sensing.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 6, page no.d290-d297, June-2021, Available :http://www.jetir.org/papers/JETIR2106443.pdf

"Applications of Remote Sensing.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 6, page no. ppd290-d297, June-2021, Available at : http://www.jetir.org/papers/JETIR2106443.pdf