An ocean current is a continuous, directed movement of seawater generated by a number of forces acting upon the water, including wind, the Coriolis effect, breaking waves, cabbeling, and temperature and salinity differences.
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| Source :By Dr. Michael Pidwirny |
Trade winds are a type of wind system that blows in a
specific direction and is driven by global temperature and pressure
differences. These winds have a major impact on global weather patterns and
maritime trade routes, and have played a significant role in the development of
civilizations throughout history.
For the UPSC exam, it is important to understand the basic characteristics and patterns of trade winds, as well as their impact on various aspects of the world, including agriculture, industry, and global trade. By studying the role of trade winds in history and the modern world, you can better understand the forces that shape our world and be well-prepared for questions about trade winds on the UPSC exam.
Now we know that difference in air pressure creates wind. See at the equator the sun warms the Water and Land more than any place of our planet. So this intense heat makes the air to rise up and they travel towards the poles. This is actually called low pressure system. Likewise air from Poles which are cold and high pressure travel towards the equator.
Also let's know about prevailing winds. These are winds that flow over a single direction. Generally these prevailing winds blow from east to west because of Coriolis effect (A force caused by rotation of earth).
