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Beschreibung

The infrared portion of the spectrum is one of the most useful for identifying what a surface is made of because there is both reflected energy and emitted energy. Plants reflect much more energy in the reflected infrared than in the visible, and we can determine the state of the health of the plant from its reflectance. The reflected infrared energy also tells us a lot about rocks and minerals that may be present. For example, we can often distinguish clay-bearing minerals from other minerals (important in gold and silver exploration), although it usually takes additional information to classify specific rocks.

Quelle

http://observe.arc.nasa.gov/nasa/education/reference/reflect/graphics/spectrum.gif

http://observe.arc.nasa.gov/nasa/education/reference/reflect/ir.html

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NASA

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aktuell20:28, 2. Jul. 2007Vorschaubild der Version vom 20:28, 2. Jul. 2007418 × 309 (16 KB)DerJenson (Diskussion | Beiträge){{Information |Beschreibung=The infrared portion of the spectrum is one of the most useful for identifying what a surface is made of because there is both reflected energy and emitted energy. Plants reflect much more energy in the reflected infrared than