Primary, Secondary & Tertiary Wind Systems
Primary Wind Systems
Trade Winds
- Trade winds refer to the prevailing winds that blow from the subtropical high-pressure areas towards the equatorial low-pressure belt.
- These winds are typically found in a belt between approximately 30°N and 30°S latitude across the Earth's surface.
- In the Northern Hemisphere, they are known as the northeastern trades, while in the Southern Hemisphere, they are referred to as the southeastern trades.
- The deviation of these winds from their expected north-south direction is a result of the Coriolis force and Farrel's law.
- Initially, trade winds are stable and descending in regions of their origin, which is the subtropical ....