Question:
Water bodies appear in dark tone in Near Infrared (NIR) image, because water _____ most of the NIR radiations incident on it.
Water bodies appear in dark tone in Near Infrared (NIR) image, because water _____ most of the NIR radiations incident on it.
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Remember the strong absorption of NIR by water, making it a key band for water body delineation.
Updated On: May 6, 2025
- \( \text{Absorbs} \)
- \( \text{Emits} \)
- \( \text{Reflects} \)
- \( \text{Scatters} \)
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The Correct Option is A
Solution and Explanation
Water bodies appear in a dark tone in Near Infrared (NIR) imagery because water strongly absorbs most of the NIR radiation incident upon it. This high absorption results in very little NIR energy being reflected back to the sensor, leading to a dark signature in the image.
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