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Lecture 1
1.1Definition
What is Remote Sensing?
If you are reading
this sentence, now you are doing Remote Sensing. In fact, any information
acquired from the object without touching is Remote Sensing. Following is a
scientific definition of Remote Sensing. The science of acquiring information
about the earth using instruments which are remote to the earth's surface,
usually from aircraft or satellites. Instruments may use visible light,
infrared or radar to obtain data. Remote sensing offers the ability to observe
and collect data for large areas relatively quickly, and is an important source
of data for GIS
