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

How will it impact the rest of the organs, Starting at the esophagus, trace...

Starting at the esophagus, trace the pathway of food through the system. At each organ, indicate anatomical adaptations to the general GI tract tube structure that enhance the spec

Nonsurgical retreatment will be the preferred choice, Nonsurgical retreatme...

Nonsurgical retreatment will be the preferred choice -Less invasive .. not cause problem to the pt. -Less traumatic postoperative .. most probably no post operative pain

Cleavage, what are the chemical changes takes place during cleavage

what are the chemical changes takes place during cleavage

Concept of recombination frequency used in genetic mapping, How can the con...

How can the concept of recombination frequency be used in genetic mapping? The Genetic mapping is the determination of the location of the genes in a chromosome. Besides determ

Immunolocalization, uses and advantages and disadvantages of immunolocaliza...

uses and advantages and disadvantages of immunolocalization

Determine the term - language abilities, Determine the term -  Language Ab...

Determine the term -  Language Abilities The study of aphasia and acquired language disorders was one of the driving forces in the growth of neuropsychology in this century. Th

What is the energy source used in active transport, Q. What is the energy s...

Q. What is the energy source used in active transport through biological membranes? The energy necessary for active transport against the concentration gradient of the transpor

Differance between descending thoracic or abdominal aneurysm, Differance be...

Differance between Descending Thoracic or Abdominal Aneurysm ? Descending Thoracic Aortic and Thoraco-Abdominal Aneurysm :  The approach is through n left postero-lat

Traditional uses of dung, T r ad i tional Uses of dung Dung has an ...

T r ad i tional Uses of dung Dung has an astonishing and myriad variety of uses which have been developed over a period of time. Dung patties ( gootee ) are mainly used by

Describe the blood coagulation process, Q. How can the blood coagulation (c...

Q. How can the blood coagulation (clotting) process be described? Blood clotting encompasses a sequence of chemical reactions whose respective products are enzymes that catalyz

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