Climatology

What is the TRICELLULAR Model (Atmospheric Circulation)

Denver Kunaka Last edited:November 29, 2020

Table of Contents

Tricellular Model diagramRefer to the diagram for easy understanding.

The Tricellular model is simply a chain showing the connections between 3 distinct cells namely the Hadley Cell, the Ferrel Cell and the Polar Cell. The origin of the Tricellular model is the equator extending outwards to the poles.

Hadley Cell

Air is heated at the equator and rises creating cumulonimbus clouds with heavy rain. The air continues outwards and descends at the 30o South and North of the equator creating a subtropical HP (Ferrel cell). This is another factor causing the creation of deserts at the subtropical highs e.gSahara Desert

Polar Cell (LP)

Cold air from the poles converge and rises with the sub-tropical warm air creating a polar front with unstable conditions..

Ferrel Cell

This cell lies between the Hadley and the Polar cell. Raised air from the tropical and polar low pressure converge and descends at 30o creating an area of high pressure with stable conditions.

How understandable was this article

Click on a star to rate it!

About Author

Denver is a Geographer, Web Developer, Graphic Designer, Blogger & Digital Marketer. He has come to know that everyday there's something new to learn :-)