Question

What is summer stratification. Explain.

Answer 1

HLO MATE HERE IS UR ANSWER

❤. SUMMER STRATIFICATION ❤

⭐. During summer , in temparate lakes , the formation of three layers of water is called summer stratification.

⭐. During summer the temperature of lakes rises upto 25degreesC . Hence ,periodic circulation of water takes place.

⭐. Then three types of layers are formed

✨.Epilimnion

✨. Thermocline

✨. Hypolimnion.

❤. EPILIMNION ❤

⭐. The upper ,warm oxygen rich layer of water having a temperature range of 21degreeC _ 25 degree C is called epilimnion.

❤. THERMOCLINE ❤

⭐. The below layer of epilimnion is called thermocline or metalimnion.Here , the temperature decreases at the rate of 1 degree C per meter.

❤. HYPOLIMNION ❤

⭐. The bottom layer where the temperature is about 7 degree C is called Hypolimnion.

⭐. In this layer , the water is stagnant ,relatively cool , nutrient rich , low oxygen content due to absence of photosynthetic activity.

❤. SUMMER STRATIFICATION IS FOLLOWED BY AUTUMN OVERTURN ❤

⭐. During Autumn the temperature of surface water falls to 4 degree C.

⭐. The water becomes heavy when the temperature is at 4 degree C . It sinks to the bottom . The bottom water comes to the surface with many nutrients. This circulation is called autumn (fall) over turn.

⭐. Due to autumn overturn uniform temperature and uniform distribution of nutrients and oxygen in the lakes take place.

Answer 2

Summer Stratification is the phenomenon that occurs when a water body like a lake, separates into two different layers water.

• During the summer season, temperature of the environment rises and thus the temperature of the lake rises too,
• The warmer distribution of the lake water rises to the top due to decrease in it's density. This upper layer is known as the "epilimnion".
• Epilimnion is concentrated with oxygen and it's temperature range is 21°C to 25°C.
• The colder layer at the bottom of the lake is called the "hypolimnion".
• This layer is not rich in oxygen and it's temperature ranges from 6°C to 7°C .
• Between the epilimnion and hypolimnion a zone called the "Thermocline" exists. In this layer the water temperature gradually decreases at the rate of 1°C per meter.

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