Winter stratification - thermal stratification, Biology

Assignment Help:

Winter Stratification - Thermal stratification

During extremes of winter the surface layer of the lake freezes or attains a temperature close to 0° Celsius. Under these conditions an inverse stratification develops. The water beneath the ice absorbs solar radiation passing through the ice and so remains relatively warm. When this warm water attains a temperature of 4°C it becomes dense and heavier. Consequently it sinks to the bottom where it mixes with bottom water of the lake which is warmed by heat conducted from the bottom mud. The result is higher temperature at the bottom, though the overall stability of water remains undisturbed.

That is, the less dense-surface water in the form of ice or at 0°C floats on the top of the warm, heavier water which is at an appropriate temperature of 4°C. Both of these layers remain stratified and do not mix during the winter season so that the lake is said to have undergone, winter stagnation or stratification.


Related Discussions:- Winter stratification - thermal stratification

Syringe, Can you use a regular syringe instead of a gas syringe in a lab

Can you use a regular syringe instead of a gas syringe in a lab

Monohybrid cross, why does the monohybrid always result in a 1:2:1 ratio?

why does the monohybrid always result in a 1:2:1 ratio?

What are the two main species of taenias, What are the two main species of ...

What are the two main species of taenias that cause human diseases? The two major species of taenias that cause disease in humans are Taenia solium, or the pork tapeworm, and T

Digestive system, I want to know how does our digestive system work

I want to know how does our digestive system work

Explain alginate, Alginate Alginates are produced by brown seaweeds (Ph...

Alginate Alginates are produced by brown seaweeds (Phaeophyceae, mainly  Laminaria).  Alginates or algin, is a generic term for the salts and derivatives of alginic acid. Algin

Safety and First-Aid Procedures, How can a family prevent injuries from a f...

How can a family prevent injuries from a fire in the home

World conservation strategy proposes various steps , WORL D CONSERVATION S...

WORL D CONSERVATION STRATEGY PROPOSES THE FOLLOWING STEPS - 1.       Preservation of critical habitats. 2.       Protection of wild life in situ (in natural habitats) as we

Metamorphosis, What type of metamorphosis do spongs go through is it reteog...

What type of metamorphosis do spongs go through is it reteogressive?

Show the types of oesophagitis conditions, Q. Show the types of oesophagiti...

Q. Show the types of oesophagitis conditions? The two types of oesophagitis conditions: 1. Acute Oesophagitis - It is characterized by substantial pain on swallowing. It is

Unilateral incompatibility, Unilateral Incompatibility This relates to...

Unilateral Incompatibility This relates to incompatibility that operates in one direction. The most common way to ascertain unilateral incompatibility is to perform crosses be

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd