Consider the following statements:- 1) The equatorial low pressure belt is of thermal origin. 2) The Sub Polar low pressure belts are thermally induced. 3) Sub Tropical high pressure belts are dynamically induced. Which of the above statement/statements is/are false? *
Answers
The incorrect statement here is 2)The sub Polar low pressure belts are thermally induced.
=>This is not the case, however, subpolar low pressure belts are formed when the cold, high pressure air from the polar high pressure belts is pushed towards the equator due to the rotation of the earth about its axis, it passes over the subpolar region giving it a low pressure belt.
=> The equatorial low pressure belt or the Doldrums is indeed thermally induced as this region gets the direct rays of the sun throughout the year, warming the waters and the air above the waters, causing it to expand and rise and move towards the subtropical zones, giving the equatorial low pressure belt.
=> The subtropical High pressure belts or the Horse Latitudes are dynamically induced as the air that arrives from the equatorial low pressure belt contracts, becomes more dense and sinks at this zone giving it a high pressure belt.