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Feature Identification

Feature Identification. 3 km. 25 km. 20 DN. ALI Pan Band (10 m). 5 DN. Crary Ice Rise Jan. 1999. SPOT Pan Band (10 m). Ice Stream Margin. ALI Band 5 (30 m). Ice Stream D, Antarctica. fast, crevassed ice flow. 100 DN. ALI Pan Band (10 m). slow, smooth ridge ice. 10 DN. 9 km.

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Feature Identification

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  1. Feature Identification 3 km 25 km 20 DN ALI Pan Band (10 m) 5 DN Crary Ice Rise Jan. 1999 SPOT Pan Band (10 m)

  2. Ice Stream Margin ALI Band 5 (30 m) Ice Stream D, Antarctica fast, crevassed ice flow 100 DN ALI Pan Band (10 m) slow, smooth ridge ice 10 DN 9 km L7 Band 4 (30 m) 2 km

  3. 300-m Low-Pass Filter Increased Signal on Ridge Ice 3 km 3 km Power Spectrum ALI Band 5 (30 m, 12-bit) ALI Filtered Power Spectrum L7 Band 4 (30 m, 8-bit) L7 Filtered

  4. Effect of Sastrugi 150 m 600 m 600 m Ice Stream D IKONOS Pan Band 1-m pixels 10-m average 30-m average

  5. A Accumulation area Ablation area B ALI Band 5 A B Glacier Facies Hofsjokull, Iceland September 24, 2001 Transect from the accumulation area to the ablation area

  6. Feature Detection Hofsjokull, Iceland September 24, 2001 Left - ALI Band 5 (0.775-0.890 micrometers); Right - result using edge-detection filtering

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