"In the broadest sense, remote sensing is the measurement or acquisition of information of an object or phenomenon, by a recording device that is not in physical or intimate contact with the object. In practice, remote sensing is the utilization at a distance (as from aircraft, spacecraft, satellite, or ship) of any device for gathering information about the environment. Thus an aircraft taking photographs, Earth observation and weather satellites, monitoring of a fetus in the womb via ultrasound, and space probes are all examples of remote sensing. In modern usage, the term generally refers to techniques involving the use of instruments aboard aircraft and spacecraft, and is distinct from other imaging-related fields such as medical imaging or photogrammetry."
2007-01-16 23:03:01
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answer #1
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answered by TimmyD 3
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Remote Sensing is the science and art of acquiring information (spectral, spatial, temporal) about material objects, area, or phenomenon, without coming into physical contact with the objects, or area, or phenomenon under investigation. Without direct contact, some means of transferring information through space must be utilised. In remote sensing, information transfer is accomplished by use of electromagnetic radiation (EMR). EMR is a form of energy that reveals its presence by the observable effects it produces when it strikes the matter. EMR is considered to span the spectrum of wavelengths from 10-10 mm to cosmic rays up to 1010 mm, the broadcast wavelengths, which extend from 0.30-15 mm.
2007-01-19 00:29:50
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answer #2
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answered by harinder 2
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Denier experts were playing this interest for a lengthy time period, the con that became tried with surroundings & power did not somewhat fool maximum for extremely lengthy the subsequent section seems to apply little commonplace or new journals like distant Sensing which isn't proper on to AGW they have also tried this by technique of publishing in information journals and different off subject matter journals. everywhere somewhat yet in journals on the concern of climate because they in basic terms can't grant real info to lower back their nonsense and they understand it. Wagner made the blunders and has keen to renounce, he also shows his disgust on the exaggeration made by technique of "the author" and the media "fox" at exaggerating the well worth of this paper, a view that shows tremendously properly the hollow video games deniers are fidgeting with those so called printed papers, even as jointly shouting peer evaluation isn't any good.
2016-10-15 08:37:17
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answer #3
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answered by ? 4
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"Remote sensing is the science of deriving information about the earth's land and water areas from images acquired at a distance. It usually relies upon measurement of electromagnetic energy reflected or emitted from the features of interest (Campbell 1987)."
2007-01-16 23:32:26
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answer #4
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answered by bilahari a 3
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Remote sensing is a survey of topography of earth surface by satellite. By this techinique can even differentiate the crops, can predict water resources,position of crops.Can predict weather.
2007-01-17 04:40:01
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answer #5
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answered by shekhar l 1
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observing from a distance with the help of a polar satellite
2007-01-17 01:29:29
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answer #6
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answered by ambime_07 1
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Relay monitoring.
2007-01-16 23:22:36
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answer #7
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answered by ag_iitkgp 7
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trying to find a good show on TV
2007-01-16 23:04:02
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answer #8
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answered by John B 4
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