Table of Contents
What are predictable winds?
There are steady winds that always blow in the same direction because of the pattern of how air moves through the atmosphere over the entire planet. For centuries sailors have depended on these predictable winds known as the Trade Winds, Westerlies, and Polar Easterlies.
What are the two types of wind patterns?
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. They are called Trade Winds, Doldrums, and Horse Latitudes.
What are the 2 winds?
|2||96-110 mph 83-95 kt 154-177 km/h|
|3 (major)||111-129 mph 96-112 kt 178-208 km/h|
|4 (major)||130-156 mph 113-136 kt 209-251 km/h|
|5 (major)||157 mph or higher 137 kt or higher 252 km/h or higher|
What are wind changes?
Earth’s Rotation The rotation of Earth on its axis causes winds to shift direction, creating what are called the prevailing winds. This wind shift, known as the Coriolis effect, causes winds in the Northern Hemisphere to shift to the right and winds in the Southern Hemisphere to shift to the left.
Why is it called trade winds?
The trade winds were named by the crews of sailing ships that depended on the winds during westward ocean crossings. …
What are the 4 types of local winds?
The main types of local winds are sea breezes and land breezes, Anabatic and katabatic winds, and Foehn winds.
What is a strong wind called?
Short bursts of high speed wind are termed gusts. Strong winds of intermediate duration (around one minute) are termed squalls. Long-duration winds have various names associated with their average strength, such as breeze, gale, storm, and hurricane.
What causes the direction of wind?
A major factor that determines wind direction is air pressure. Wind travels from areas of high pressure to areas of low pressure. Additionally, heat and pressure cause the wind to shift direction. Additional factors that affect wind direction are the Coriolis Effect and Topography.
What are the examples of permanent winds?
1. Permanent winds- The trade winds, westerlies and easterlies are the permanent winds. These blow constantly throughout the year in a particular direction.
Which wind direction is the strongest?
Winds in the upper levels will blow clockwise around areas of high pressure and counterclockwise around areas of low pressure. The speed of the wind is determined by the pressure gradient. The winds are strongest in regions where the isobars are close together.
How does the wind change from one direction to another?
The wind veers when it changes direction clockwise. Example: The surface wind is blowing from 270°. At 2000 feet it is blowing from 280°. It has changed in a right-hand, or clockwise, direction. The wind backs when it changes direction anti-clockwise. Example: The wind direction at 2000 feet is 090° and at 3000 feet is 085°.
What’s the name of the prevailing wind direction?
The typical wind direction that a location has for a certain time of the year is called the prevailing wind. When the wind is from the prevailing direction then the weather is generally typical. When the wind changes abruptly it could be a frontal passage or wind direction change caused by thunderstorm outflow.
Which is an example of how wind energy is used?
Wind energy can be used for anything from power on boats, battery charging or electricity to being used commercially. Examples of how wind energy can be used include: Wind energy is often created on wind farms. Some wind farms are onshore, and the land is often used for additional purposes, such as allowing animals to graze.
Why does the wind change from the south to the north?
A wind shifting from the south often means warmer air is approaching and a wind from the north often means cooler air is approaching. When the wind changes abruptly it could be a frontal passage or wind direction change caused by thunderstorm outflow.