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

Animal tissue, Animal Tissue A tissue is a group of cells that are si...

Animal Tissue A tissue is a group of cells that are similar in structure, origin and function. Tissue word coined by Bichat (Father of Histology). Histology term

What are the material used in biotolerant, Biotolerant Metals :- Co- Cr...

Biotolerant Metals :- Co- Cr Alloys, Stainless Steel, Gold,  niobium, tantalum Polymers:-  Polyethylene, polytetrafluorethylene, polyamide, polymethylmethacrylate, polyureth

Massaging and tumbling techniques in meat products, M a s s a g i n ...

M a s s a g i n g and tumbling techniques To improve the desirable characteristics of meat products massaging and tumbling techniques were developed. Massaging involves

Importance of the glucose blood level for human health, Q. What is the impo...

Q. What is the importance of the glucose blood level for human health? The glucose blood level (glycemia) must be kept normal if it is abnormally low there is not sufficient gl

Super cooling - temperature relations in animals, Normal 0 fals...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Mitosis, explain mitosis in detail

explain mitosis in detail

Explain about the vitamin a - fat soluble vitamins, Explain about the Vitam...

Explain about the Vitamin A? Vitamin A, one of the fat soluble vitamins, refers to a sub-group of retinoid that possess the biological activity of all-trans-retinol. The term '

What are the pentoses, Q. What are the pentoses? To what organic group do t...

Q. What are the pentoses? To what organic group do the pentoses belong? Are nucleotides formed of only one kind of pentose? Carbohydrates are Pentoses made of five carbons. Deo

Physical lay out, Physical Lay Out: Physical lay out of the nursing un...

Physical Lay Out: Physical lay out of the nursing unit should be planned and built in such a manner so that it helps the head nurse to discharge her duties/carry  out her resp

Lymphatic drainage of the heart, The heart is drained by vessels that trave...

The heart is drained by vessels that travel in the interventricular and atrioventricular grooves. One set runs in the anterior part of the atrio-ventricular groove. The vessels of

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