sunglint

noun1

1. •
   An optical phenomenon that occurs when sunlight reflects off the surface of water (an ocean, lake or river) directly towards a satellite sensor viewing the surface, so that in the sunglint area of a satellite image, smooth water appears as a silvery mirror, while rougher surface water is relatively dark.

   • The water gets its eerie hue from sunglint, an optical phenomenon that occurs when sunlight reflects directly from the water’s surface into the camera lens. — 2016