Guidance for the Management of Coastal Vegetated Shingle 
 
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  CASI - Compact Airborne Spectrographic Imager is a sensor which detects visible and near infrared electromagnetic energy reflected from the surface of the earth. The images provide information on ground-cover types to a high resolution. The imagery can also be located with a high degree of accuracy using a Global Positioning System (GPS).  
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© English Nature 2003