What type of local wind would you experience in a valley at night?

What type of local wind would you experience in a valley at night?

mountain breeze
Vocabulary Language: English ▼ English

Term	Definition
mountain breeze	Wind that blows from a mountain to a valley at night when mountain air is cooler.
rainshadow effect	Location of little rain on the leeward side of a mountain range due to descending air.

Would the local wind change if it was nighttime?

Winds in the low-levels become much more uniform at night and in predawn hours. This threat is especially strong if there is a sharp change inwind direction. During the night, the loss of the sun’s radiation causes the earth’s surface to lose the heat it builds up during the day.

Which of the following creates a local wind?

All wind is caused by the uneven heating of Earth’s surface, which sets convection currents in motion, Convection currents on a large scale cause global winds; convection currents on a small scale cause local winds.

What are the local wind?

Local winds are winds that blow over a limited area. Local winds blow between small low and high pressure systems. They are influenced by local geography. Nearness to an ocean, lake, or mountain range can affect local winds. Local winds can affect the weather and climate of a region.

What is another name for a valley breeze?

When the valley floor warms during the day, warm air rises up the slopes of surrounding mountains and hills to create a valley breeze. At night, denser cool air slides down the slopes to settle in the valley, producing a mountain breeze. Encyclopædia Britannica, Inc.

What factors contribute to global winds?

Global winds are affected by convection current, pressure gradients, the Coriolis effect, and friction.

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 an example of local wind?

A local wind is a flow of air that tends to happen in a predictable way in a particular, local area. 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.

What are the local winds give examples?

Lesson Summary 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.

Is wind stronger in a valley?

These increases in wind speed are driven by unequal heating and cooling of the valleys and mountains in the area. This is because the mountain slopes at higher elevations cool quicker than the valleys. The cooler and denser air at higher elevations flows back down the slopes of the mountain and into the valley.

What is the meaning of katabatic wind?

Katabatic wind, also called downslope wind, or gravity wind, wind that blows down a slope because of gravity. The air in contact with these highlands is thus also cooled, and it becomes denser than the air at the same elevation but away from the slope; it therefore begins to flow downhill.

What factors contribute to global winds identify areas where winds are weak?

What factors contribute to global winds? Identify areas where winds are weak. Wind systems that occur near Earth’s surface caused by the Coriolis Effect and pressure belts at 30 degrees lat. Areas of where winds are weak are the Doldrums and horse latitudes.

What are the characteristics of a local wind?

A local wind can persist anywhere from several minutes to several days. Local winds can be driven by temperature and pressure differences or by variations in topography, the shape and height of Earth’s surface features. Regardless of their cause, local winds have certain general characteristics.

Where does the heat go in a mountain wind?

The layer of air just above the surface loses heat to the surface in a transfer process called conduction and also cools rapidly. This cold, dense surface air travels down the mountain and sinks into the valley. A mountain breeze is also called gravity wind or drainage wind.

When do mountain breezes and valley breezes occur?

During the night the slopes get cooled and the dense air descends into the valley as the mountain wind. These breezes occur mostly during calm and clear weather. Mountain and valley breezes are other examples of local winds caused by an area’s geography.

Which is stronger a mountain wind or a katabatic wind?

A katabatic wind is any wind that travels down a mountain under the force of gravity. However, the term is usually reserved for downhill winds which are considerably stronger than mountain breezes. As a katabatic wind descends the mountainside, it is warmed by compressional warming.