Explain the categories of wind
Answers
Explanation:
Planetary winds, prevailing winds or permanent winds are those which blow continuously in the same belt all through the year. ... There are three main types of planetary winds - the trade winds, the westerlies and the easterlies. These winds are named according to the direction from which they blow.
Answer:
Explanation:
The wind is a moving air that is caused due to the differences in air pressure within our atmosphere. Wind flows from the high air pressure area to the low air pressure area to balance the disparities of air pressure. The more significant the pressure difference, the faster the wind flows.
Classification of Wind
On earth, winds are broadly classified into three categories:
Primary Wind
Secondary Wind
Tertiary Wind
This classification is based on the periodicity of occurrence and location of occurrence.
Primary Wind or Planetary Wind
Primary winds constantly blow throughout the year in a particular direction. Primary winds are also known as prevailing winds or planetary winds. Trade winds, westerlies and easterlies are different types of primary wind.
Secondary Wind or Periodic Wind
Secondary winds are winds that change their direction in different seasons. Secondary winds are also known as seasonal winds and periodic winds. Secondary winds occur in many locations throughout the world. A particular secondary wind and the underlying physical forces that drive the wind depends upon the unique geographic location. One of the most commonly recognized secondary winds is the monsoon wind.
Tertiary Wind or Local Wind
Tertiary winds blow only during a particular period of the day or year in a small area. These winds blow due to the difference in temperature and air pressure of a specific location. These winds can be of different types, like hot, cold, ice-filled, dust– rich, in accordance with local characteristics. Loo is a hot and dry local wind of the northern plains of India. Other main local winds include Mistral, Foehn, Bora, etc.
Trade Winds
Trade winds are also known as tropical easterlies and blow from the right in the Northern hemisphere and to the left in the Southern hemisphere due to Coriolis effect and Ferrel’s law. They start blowing from the sub-tropical high-pressure areas towards the equatorial low-pressure belt. In the Northern hemisphere, they blow as northeastern trades, and in the Southern hemisphere, they blow as southeastern trades.