What is air that moves down from the valley to the mountains?

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.

1. Why does air flow down from mountains into valleys at night?
2. What is a valley wind?
3. What kind of wind is the valley and mountain breeze?
4. How does wind travel through a valley?
5. Why does air flow down from mountains into valleys at night quizlet?
6. How does air move in the atmosphere?
7. What are mountain winds called?
8. What is meant by Mountain Breeze?
9. What is called land breeze?
10. How does wind work in mountains?
11. What are the local wind?
12. Is it windier in the hills?
13. What causes wind?
14. What happens to the warm air as it rises up a mountain?

Why does air flow down from mountains into valleys at night?

Mountain and Valley Breezes

As the day progresses, warm air rises and draws the cool air up from the valley, creating a valley breeze. At night the mountain slopes cool more quickly than the nearby valley, which causes a mountain breeze to flow downhill.

What is a valley wind?

Definition of valley wind

: a breeze of diurnal period depending on the unevenness of land surfaces that blows up the slope by day — compare mountain wind.

What kind of wind is the valley and mountain breeze?

A mountain breeze and a valley breeze are two related, localized winds that occur one after the other on a daily cycle. They are not the same as anabatic and katabatic winds, which are larger and stronger. These winds are opposite from each other.

How does wind travel through a valley?

The warmer and less dense air near the ground rises during the day pulling more air through the valley floor. This gentle upslope wind known as a valley breeze. The flow of air reverses as the sun is going down and at night. This is because the mountain slopes at higher elevations cool quicker than the valleys.

Why does air flow down from mountains into valleys at night quizlet?

Why does air flow from mountains down into valleys? Because cold air is dense. It flows downhill into the valley at night. ... The Coriolis effect causes direction of winds and ocean currents to be deflected.

How does air move in the atmosphere?

Air in the atmosphere moves around the world in a pattern called global atmospheric circulation. ... When the air cools, it drops back to the ground, flows back towards the Equator, and warm again. The, now, warmed air rises again, and the pattern repeats. This pattern, known as convection, happens on a global scale.

What are mountain winds called?

Downslope Winds occur when warm/dry air descends rapidly down a mountain side. These are common on the east side of the Rocky Mountains, called Chinook Winds. These winds can blow over 40 mph, and can occur in sudden gusts that are even stronger, which can make driving hazardous.

What is meant by Mountain Breeze?

[′mau̇nt·ən ′brēz] (meteorology) A breeze that blows down a mountain slope due to the gravitational flow of cooled air. Also known as mountain wind.

What is called land breeze?

land breeze, a local wind system characterized by a flow from land to water late at night. ... The land breeze is typically shallower than the sea breeze since the cooling of the atmosphere over land is confined to a shallower layer at night than the heating of the air during the day.

How does wind work in mountains?

description and cause

…of such winds, known as mountain winds or breezes, is induced by differential heating or cooling along mountain slopes. During the day, solar heating of the sunlit slopes causes the overlying air to move upslope. These winds are also called anabatic flow.

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.

Is it windier in the hills?

On hills, one may also experience that wind speeds are higher than in the surrounding area. Once again, this is due to the fact that the wind becomes compressed on the windy side of the hill, and once the air reaches the ridge it can expand again as its soars down into the low pressure area on the lee side of the hill.

What causes wind?

Wind is the movement of air caused by the uneven heating of the Earth by the sun. ... Warm equatorial air rises higher into the atmosphere and migrates toward the poles. This is a low-pressure system. At the same time, cooler, denser air moves over Earth's surface toward the Equator to replace the heated air.

What happens to the warm air as it rises up a mountain?

As the relatively warm, moist air rises over the windward side of the mountains, it cools and contracts. If the air is humid, it may form clouds and drop rain or snow. When the air sinks on the leeward side of the mountains, it forms a high pressure zone.