Which are the fast flowing cold air current?

Which are the fast flowing cold air current?

jet stream are the fast flowing cold air current in a narrow zone in the upper atmosphere.

What are the fast flowing relatively narrow air currents found in the atmosphere called?

Jet streams are fast flowing, relatively narrow air currents found in the atmosphere at around 12 km above the surface of the Earth, just under the tropopause.

Where are air currents fastest?

The Earth below the air, however, moves slower as that air travels toward the poles. The result is that the air moves faster and faster in an easterly direction (relative to the Earth’s surface below) the farther it moves from the equator. North hemisphere cross section showing jet streams and tropopause elevations.

What are the high speed winds in the upper atmosphere?

THE JET STREAM Narrow bands of exceedingly high speed winds are known to exist in the higher levels of the atmosphere at altitudes ranging from 20,000 to 40,000 feet or more. They are known as jet streams. As many as three major jet streams may traverse the North American continent at any given time.

What causes jet streams to form?

Jet streams are currents of air high above the Earth. They move eastward at altitudes of about 8 to 15 kilometers (5 to 9 miles). They form where large temperature differences exist in the atmosphere. Cooler, heavier air then pushes in to replace the warm air, forming a cool air current.

What are jet streams and where are they located?

Jet streams are fast flowing, narrow, meandering, air currents in the atmospheres of some planets, including Earth. On Earth, the main jet streams are located near the altitude of the tropopause and are westerly winds (flowing west to east).

What are the fast flowing winds blowing in a narrow zone in the troposphere called?

Jet streams are narrow bands of strong wind that generally blow from west to east all across the globe.

How high is the jet stream?

about five to nine miles
Jet streams are located about five to nine miles above Earth’s surface in the mid to upper troposphere — the layer of Earth’s atmosphere where we live and breathe. Airplanes also fly in the mid to upper troposphere.

Why is it called the jet stream?

Jet streams were first discovered in the 1920s by a Japanese meteorologist named Wasaburo Ooishi. He used weather balloons to track upper level winds high above Mount Fuji. The term “jet stream” wasn’t used until 1939, though, when a German meteorologist first used the term in a research paper.

What are high speed winds called?

Explanation: High speed winds are called cyclones or gusts.

Where does the current flow in the atmosphere?

Air current s flow in the atmosphere, the layer of air surrounding the Earth. Water currents flow in river s, lake s, and, ocean s. Electric current s flow through power line s or as lightning. Moving air is called wind.

How are jet streams formed in the atmosphere?

As the Earth is heated, it warms the air just above it. The warmed air expands and becomes lighter than the surrounding air. It rises, creating a warm air current. Cooler, heavier air then pushes in to replace the warm air, forming a cool air current. Jet streams are air currents in the highest part of the atmosphere.

Which is the place where the air pressure is high?

Places where the air pressure is high, are called high pressure systems. A low pressure system has lower pressure at its center than the areas around it. Winds blow towards the low pressure, and the air rises in the atmosphere where they meet.

How are air currents related to ocean currents?

Ocean currents are great stream s of water flowing both near the oceans surface and far below it. Prevailing wind s (air currents) that blow over parts of the ocean push the water along, creating surface currents. Winds can also contribute to upwelling, or currents that move cold, nutrient -rich water from the bottom of the ocean to the surface.