That’s why at deeper than 60 ft, everything looks blue (unless of course, you have brought your light with you).
Shorter wavelength UV light penetrates well to about 30 ft (10 m).
At 130 ft (40m), only about 1% of UV light is detectable.
How deep does UV light penetrate into the ocean?
The upper 200 meters (656 feet) of the ocean is called the euphotic, or “sunlight,” zone. This zone contains the vast majority of commercial fisheries and is home to many protected marine mammals and sea turtles. Only a small amount of light penetrates beyond this depth.
How deep does UV light penetrate skin?
Penetration of human skin by ultraviolet light. The longer the wavelength of light, the deeper the penetration of the light into the skin. Ultraviolet light is generally divided into ultraviolet C (200 to 280 nanometers), ultraviolet B (280 to 320 nanometers), and ultraviolet A (320 to 400 nanometers).
Does UV travel through water?
UV-B, the frequency range of ultra-violet light that causes sunburn, is absorbed by water but you need a few metres of it to provide adequate protection. Half a metre of water will still let 40 per cent of the UV-B through and the cooling effect of the water makes you less aware of the Sun.
How does the depth of water affect light availability?
The intensity of sunlight decreases rapidly with depth. The depth of the water not only affects the colors of light that are noticeable underwater, it also affects the intensity, or amount of light. Within the first 10 m, water absorbs more than 50 percent of the visible light energy (Fig.
Photo in the article by “Flickr”