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Satellite Remote Sensing

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Wavelength<br />

in meters (m)<br />

10 -14<br />

Gamma<br />

and x-ray<br />

Electromagnetic Spectrum and the<br />

Photon Energy of Visible Light<br />

Photon energy of<br />

visible light in<br />

electron volts (eV)<br />

4.0<br />

3.5<br />

Photon wavelength<br />

in nanometers (nm)<br />

ultraviolet<br />

Sun<br />

10 -8<br />

10<br />

-6<br />

10 -12 3.10<br />

Ultraviolet<br />

Visible<br />

Infrared<br />

Earth<br />

3.0<br />

2.5<br />

2.0<br />

2.75<br />

400<br />

violet limit<br />

450<br />

blue<br />

2.48 500<br />

green<br />

2.25<br />

550<br />

green limit<br />

2.14<br />

580<br />

yellow<br />

2.06<br />

600<br />

orange<br />

1.91<br />

650<br />

red<br />

1.77 700 red limit<br />

1.5<br />

1.24<br />

1000<br />

near-infrared<br />

10 -2<br />

Microwave and<br />

radio waves<br />

1.0<br />

0.5<br />

0.041<br />

30k<br />

far infrared<br />

10<br />

0<br />

Introductory Digital Image Processing. 3rd edition. Jensen, 2004

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