Small-scale convection currents cause local winds. ... This wind is called a sea, or onshore, breeze. After sunset, the land cools down faster than the water. The warmer air over the ocean rises, while the cooler air over land rushes in to take its place.
What is the main cause of formation of local winds?
The main causes for the development of local winds includes unequal heating and cooling of landmass . Explanation: Local winds are those that blow over the shorter distances and these are locally or regionally produced due to the unequal heating and cooling of the land. Such as the sea and land breeze etc.
What is the greatest cause of local winds?
Land and Sea Breezes
Ocean water is slower to warm up and cool down than land. So the sea surface is cooler than the land in the daytime. ... These differences in heating cause local winds known as land and sea breezes (Figure below).
What causes local winds quizlet?
The movement of air from an area of higher pressure to an area of lower pressure . ... They happen during the day when the land heats up faster than the water, so the warm air over the land rises, and the cold air over the sea moves to take the warm air’s place. land breezes. These local winds happen at night.
What 2 factors cause local winds?
It is produced by the uneven heating of the earth’s surface by the sun. Since the earth’s surface is made of various land and water formations, it absorbs the sun’s radiation unevenly. Two factors are necessary to specify wind: speed and direction .
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 are two examples of local winds?
Examples of local winds include sea breezes , which blow from the sea to the land and keep coastal temperatures more mild, and land breezes, which blow from the land toward the sea, usually at night.
How do local winds affect climate?
similarly if winds are blowing from sea to land then weather will be cool and humid and if they are blowing from mountainous region then weather may be cold or foggy or rainy depending upon the conditions prevailing in the mountains at that point of time.
What are the two types of katabatic winds?
Warm, dry katabatic winds occur on the lee side of a mountain range situated in the path of a depression. Examples for these descending, adiabatically warmed katabatic winds are the Foehn winds. Cold and usually dry katabatic winds, like the Bora, result from the downslope gravity flow of cold, dense air.
How do local winds change Earth’s weather?
The water stays warmer than the land during the night and the winter. These differences in heating cause local winds known as land and sea breezes (Figure below). A sea breeze blows from sea to land during the day or in summer. That’s when air over the land is warmer than air over the water.
What is the main difference between global and local winds?
Global winds are part of a pattern of air circulation that moves across Earth. The winds travel longer distances than local winds and each type of global wind travels in a specific direction. The three global winds are trade winds, westerlies, and polar easterlies.
What is the result of local winds and global winds?
Local winds are winds that blow over a limited area. ... Global winds occur in belts around the globe. They are caused by unequal heating of Earth’s surface . The Coriolis effect causes global winds to blow on a diagonal over the surface.
What is the process that creates wind?
Wind is air in motion. Wind forms when the sun heats one part of the atmosphere differently than another part . This causes expansion of warmer air, making less pressure where it is warm than where it is cooler. Air always moves from high pressure to lower pressure, and this movement of air is wind.
What are the 3 factors that can influence local winds?
The speed and direction of the wind is governed by three forces; the pressure gradient force (PGF), the Coriolis Force and friction . PGF is the force produced by differences in barometric pressure between two locations and is responsible for the flow of air from an area of high pressure to an area of low pressure.
How many types of local winds are there?
Herein, land breeze and sea breeze are the two types of local winds.
What are the factors that influence winds?
- Pressure Gradient Force:
- Coriolis Force:
- Centripetal Acceleration:
- Frictional Force:
- Primary or Prevailing Winds:
- Secondary or Periodic Winds:
- Tertiary or Local Winds:
