Sunglint
From Coastal Wiki
(Redirected from Sun glitter)
Definition of Sunglint:
Sunglint (also called sun glitter) is defined as the contribution of sunlight that is directly reflected at the water surface and substantially increases the intensity of radiance measured at the sensor.
This is the common definition for Sunglint, other definitions can be discussed in the article
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Notes
Sunglint usually has a high spatial variability. It occurs under specific geometric conditions between the sun, the water surface, and the sensor, and affects approximately 30–70% of all Earth observation images. See also remote sensing.
In some optical remote sensing applications, glints are treated as noise because they contaminate images and hinder the retrieval of certain data products. However, when the sensor and solar azimuth and altitude angles are known, glint patterns can be exploited to infer the inclination of the sea surface. By combining this inclination information with wavelength estimates derived from the same satellite image, wave height can be estimated.[1]
See also
- Optical remote sensing
- HyMap: Hyperspectral seafloor mapping and direct bathymetry calculation in littoral zones
References
- ↑ Cui, A., Ma, Y., Jiang, Y., Li, S., Zhang, J. and Wang, R. 2025. Synchronous inversion of bathymetry and wave height using wave textures and sun glint signals. Ocean Engineering 328, 121042
