Lake Turn Over. It's one of those things you recognize when you see it, but it's hard to define...at least for me. After diving this weekend in the current low-vis of Lake Travis (after being spoiled with awesome vis all summer) it dawned on me that the lake was probably beginning to "turn over". When that light went off in my little brain I decided to find a decent description of what causes, and happens when, a lake turns over. For the geeks among us (me included) check out these two web pages. They do a good job describing the process in terms that even I can understand.
The Weather Doctor, "Fall/Spring Lake Turn Over"
Weather Elements: Fall/Spring Lake Turnover
Water on the Web, "Density Stratification"
Water on the Web | Understanding | Lake Ecology | Density Stratification
The Weather Doctor, "Fall/Spring Lake Turn Over"
Weather Elements: Fall/Spring Lake Turnover
Water on the Web, "Density Stratification"
Water on the Web | Understanding | Lake Ecology | Density Stratification