What are the trade winds and where do they occur?
The trade winds are air currents closer to Earth’s surface that blow from east to west near the equator. The trade winds have been used by sailors for centuries. Sailors traveling from Europe or Africa used the trade winds to travel to North or South America.
Where do the trade winds originate?
Trade winds originate more from the direction of the poles (northeast in the Northern Hemisphere, southeast in the Southern Hemisphere) during the cold season, and are stronger in the winter than the summer.
What generates the trade winds?
Trade winds are caused by the strong warming and evaporation within the atmosphere around the equator. (1) Around the equator, the warm air rises rapidly, carrying a lot of moisture.
Where do the westerlies occur?
Prevailing Westerlies are the winds in the middle latitudes between 35 and 65 degrees latitude. They tend to blow from the high pressure area in the horse latitudes towards the poles. These prevailing winds blow from the west to the east steering extratropical cyclones in this general manner.
What are the 4 types of winds?
The Four Major Wind Systems and Wind Belts: The four major wind systems are the Polar and Tropical Easterlies, the Prevailing Westerlies and the Intertropical Convergence Zone. These are also wind belts. There are three other types of wind belts, also.
Are trade winds warm or cold?
The differences in pressure and temperature between the two sides of the Pacific are caused by the trade winds; air blowing from east to west pushes water, making the sea level higher in the western Pacific, and makes cold water rise toward the surface, making the eastern Pacific approximately 14 degrees F (7.7 degrees …12 мая 2020 г.
Why is it called trade winds?
A similar wind pattern occurs in the Southern Hemisphere; these winds blow from the southeast toward the northwest and descend near 30 degrees South latitude. … The trade winds are so named because ships have historically taken advantage of them to aid their journies between Europe and the Americas (Bowditch, 1995).
Who discovered the trade winds?
Christopher Christopher Columbus
What height is wind speed?
Average wind speeds are often available from meteorological observations measured at a height of 10 metres.
Why are northeast trade winds dry?
Trade winds originate over land and they don’t carry much of moisture.. This cause lack of rainfall in the regions they blow over and causes dry atmosphere..
Why is 30 degrees called the horse latitude?
Unable to sail and resupply due to lack of wind, crews often ran out of drinking water. To conserve scarce water, sailors on these ships would sometimes throw the horses they were transporting overboard. Thus, the phrase ‘horse latitudes’ was born.
What is the meaning of trade wind?
noun. Also trade winds . Also called trades. any of the nearly constant easterly winds that dominate most of the tropics and subtropics throughout the world, blowing mainly from the northeast in the Northern Hemisphere, and from the southeast in the Southern Hemisphere.
Why do westerlies occur?
The name of these unique winds comes from the direction of their origin; the westerlies run west to east while other winds run east to west. Essentially, the air around the equator rises as it heats up. This upward motion causes the cooler air at higher altitudes to be moved to the previously mentioned latitudes.
Are westerlies warm or cold?
The winter westerlies, often from the southwest, bring in warm tropical air; in summer, by contrast, they veer to the northwest and bring in cooler Arctic or subarctic air. In Mediterranean Europe the rain-bearing westerlies chiefly affect the western areas, but only in winter.