Thematic Mapper TM

One of the two Earth-sensing payloads carried aboard Landsat 4 and 5, the multispectral scanner being the other on 4 and 5. It is a non-photographic imaging system, which utilizes an oscillating mirror and seven arrays of detectors, which sense electromagnetic radiation in seven different spectral bands. The Thematic Mapper is a derivative of the Multispectral SCANNER generation of sensors, but it achieves much greater Ground resolution, better spectral separation, improved geometric fidelity, and greater radiometric accuracy and resolution.

External links for Thematic Mapper TM
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Thematic Mapper TM on The Free Dictionary

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