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Keowee-Toxaway Proj.

Shoreline Management

Seasonal Change

Water Clarity

 

 

Home > Lake Keowee > Seasonality

Seasonal Changes to Keowee

The information plotted from the Secchi disk readings has also verified the effect seasonality has on lake clarity.

Around late December or early January, the surface of the lake cools significantly, causing the heavy surface water to sink to the bottom of the lake. This is a naturally occurring cycle in this climate, and is beneficial to the overall health of the lake by taking oxygen rich surface water to the bottom of the lake to support aquatic life forms and mixing the layers of water. This is commonly referred to as lake "turnover". This action, while beneficial, also picks up the fine clay sediment from the bottom and places it in suspension for a time.

In the warmth of late Spring and early Summer, this turnover stops and sediment falls slowly back to the bottom, and clarity improves.

As the summer heat intensifies, the slight lowering of clarity is probably the result of some algae growth. This would be a danger time if the nutrient level of this lake should become excessive.

Fall gives us the best clarity readings. Cooling weather, less activity, and normally reduced rainfall will keep the lake looking clear until it turns over once again.
 

last revised:
02-Mar-2005

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