Admin What is pressure belts and planetary winds?
> Pressure belts are distinct identifiable zones of homogenous pressure on earth. Equatorial low, subtropical highs, sub polar lows and polar highs are the types of pressure belt on earth. Planetary winds are the winds in the lower atmosphere that are being controlled by these pressure belts.
What is pressure and wind system?
Atmospheric pressure and wind are both significant controlling factors of Earth’s weather and climate. Pressure is the force exerted on a unit area, and atmospheric pressure is equivalent to the weight of air above a given area on Earth’s surface or within its atmosphere. …
What are the different types of wind belts?
There are three circulation cells: the Hadley cell nearest the equator, the Ferrel cell in the mid-latitudes, and the polar cell. There are three prevailing wind belts associated with these cells: the trade winds, the prevailing westerlies, and the polar easterlies (Fig.
How many types of pressure belts are there?
Pressure Belts of Earth On the earth’s surface, there are seven pressure belts. They are the Equatorial Low, the two Subtropical highs, the two Subpolar lows, and the two Polar highs.
What are the names of the three global wind belts?
There are three pairs of major global wind systems, or wind belts: trade winds, westerlies, and polar easterlies. Trade winds are wind belts that blow from 30° lati- tude almost to the equator. They curve to the west as they blow toward the equator.
What causes the global wind belts?
Answer: The global wind belts are formed by two main factors: the unequal heating of the earth by sunlight and the earth’s spin.
What are prevailing wind belts?
The wind systems comprise the trade winds ; the prevailing westerlies, moving outward from the poleward sides of the horse-latitude belts toward the 60° latitude belts of low pressure (from the southwest in the Northern Hemisphere and from the northwest in the Southern Hemisphere ); and the polar easterlies, blowing outward from the polar caps of
What are the planetary wind belts?
Planetary wind belts are related to the general circulation of the atmosphere. In this circulation there are three cells of vertical circulation. Try to picture a cross-section of the earth. At the equator the air rises with heating and in the upper atmosphere begins to flow toward the north.