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Old 22-03-2011, 09:41 PM
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GeoffW1 (Geoff)
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Quote:
Originally Posted by that_guy View Post
Thanks all another questions, is there a formula for calculating visability in certain depth??
Hi Tony,

There is a well known one for visibility from the surface looking vertically down. This is used to quantify the clarity of the water at a location.

Another formula gives horizontal visibility at shallow depth for various water conditions. This is used to estimate visibility for commercial divers etc. It depends on knowing a factor representing water clarity.

I don't know of a formula to give visibility when underwater, at any given depth, where the light is dimmer.

Would these formula be of any use?

Cheers
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