Effects of water surface The path of sunlight will be modified by the condition of the interface between air and water at the ocean surface. Under clear conditions, refraction will occur (image, below left). Under rougher conditions, wind-blown waves will produce glint (image, below right), which needs to be removed before the data can be used for mapping.
Image with glint | Image with glint removed
The two images below also demonstrate the effects of water surface on light.
Refraction at air/water interface | Waves effects causing sun glint
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