Is there any connection with atmospheric pressure and viz and what about a lake "turning over" I have heard this for years what is it or what causes it or does it even exist?
fresh water lakes
- Thread starter electrix
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Hi electrix,
Well, atmosphereic pressure is related to weather.
Winds tend to blow from higher pressure areas into lower pressure ones. This is because the air in highs is more dense than in lows. As air moves into lower pressure areas the upward flow can cause clouds and precipitation to form. Precipitation often results lowered vis (run off and the like), especially in freshwater lakes.
As for lakes "turning over," see this piece --> Lake Turnover. Obviously vis can be seasonally affected by such a phenomenon.
Regards,
DocVikingo
OP
I was thinking more of changes in pressure causing viz to change, it just seems viz is very strange when you think it will be great its not and when you least expect it, its great.
CuNanoTube
Contributor
Well, in lake Ontario the turn-over where we dive creates excellent visibility at depth in the fall / winter.
Atmospheric pressure changes locally would do nothing to the lake directly as per my understanding. They can create rain which of course will ruin the vis close to shore.
Atmospheric pressure changes locally would do nothing to the lake directly as per my understanding. They can create rain which of course will ruin the vis close to shore.
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