In this module, ERDAS Imagine was used to analyze different features under different band combinations. Below are 3 maps showcasing the features (water, water depth, and snow/ice.) under specific band combinations.
The feature highlighted in the map above is water. The False Color IR (R=4, G=3, B=2) band combination was used because the black stood out against the red.
The feature highlighted in the map above is water depth. A Custom Color IR (R=4, G=2, B=1) band combination was used because it made the difference in water depths distinguishable; showing shallow water as light blue and deeper water a darker blue.
The feature highlighted in the map above is snow and ice. The False Natural Color (R=5, G=4, B=3) band combination was used because it caused the snow and ice caps to show up as a bright blue color.
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