DivingDoc
Contributor
TexasMike once bubbled...
Here's a topic I don't think we've discussed before....
We are all used to visibility being one of the statistics on our dive, whether it be 2 feet where I live, or 2 miles where NetDoc lives. More often we hear that it is "10 to 12 feet" or "40 to 50 feet".
But where do you peg the visibility? From where your things begin to dissappear in to the haze? Or where they have completely disappeared?
To me, the difficulty is knowing the distance of the object you're looking at! How do you get that? The only way I've been able to tell is to look at my depth gauge and then at the surface. If I can see divers, fish or boat clearly on the surface from where I am, then I know the viz is at least what my depth is.
If anyone can tell me how you know the distance of objects that may be disappearing in the haze from you, please speak up.
Elaine