Texas specifically....How do you define visibility?

[archman]

Vis is generally measured horizontally.

Historically, water clarity was measured vertically, by oceanographers and limnologists aboard ship. Even today most measurements are vertical. Scuba divers have co-opted most of the same techniques, and adapted them for horizontal measurements. Generally the differences are minor, at least in shallow water.

 

[SteveDiver]

Vis and Texas? hmmm... I do not think the two go together... I have found it difficult to find good vis in Texas... will take suggestions though..

 

[tx.lakerats]

Vis & Texas.... can those two words actually go together?? For me .... If I can see my fin I say I had GOOD VIS!! of course I'll dive in any mud hole there is!!

 

[chrispete]

Historically, water clarity was measured vertically, by oceanographers and limnologists aboard ship. Even today most measurements are vertical. Scuba divers have co-opted most of the same techniques, and adapted them for horizontal measurements. Generally the differences are minor, at least in shallow water.

Sigh, reminds me of when I was working offshorse as first mate on trips for [a major university out of Galveston] research trips...but I digress, yup, if you could define the shape and contrast of the disc, then it was "visible" under the rules that we worked under - which did _roughly_ approximate the horizontal viz from the same areas underwater.


*chuckle* if anyone out there from [a major Texas university out of Galveston] who works with Dr. L at A&M-MB let him know that I had the time of my life, especially that time when the waterspout dropped a few hundred yards behind the boat while we were 25 miles offshore while we still had a sable trap (and a couple of smaller traps) in the water (nothing better in life than seeing those grad students turn grey while watching us pull in that traps in sudden 8-10 ft seas,) let him know that I had the time of my life that day and let him know that the art. reef namesake's family had a really good laugh when they heard the story of that trip - and after hearing that everything was OK. Let him know that all of his work is greatly appreciated.

(Note here: the weather was completely unpredicted, it was simply one of those Gulf Coast surprises.)

 

[archman]

[a major Texas university out of Galveston] who works with Dr. L at A&M-MB

Ya' know, it's okay on this board to say Texas A&M University at Galveston, and Andre Landry, Ph.D.. We won't lynch you. . I won't even try to ascertain which boat you were first mate on... several vessels fit the description.